CN217233127U - Two mortise lock for escape door that open - Google Patents

Abstract

The utility model discloses a two divisions of escape door are with mortise lock, including relative and first lock and the second lock of establishing, install respectively in first door leaf and second door leaf. The first door lock is provided with an upper door inserting assembly and a lower door inserting assembly and used for locking the door leaf, the upper door inserting assembly is provided with an upper inserting rod seat assembly, the door leaf is limited by the upper inserting rod seat assembly and cannot stretch out when the door is opened, the upper inserting rod seat assembly is pressed down to remove the limitation when the door is closed, and the upper inserting rod seat stretches out the locking door leaf and can realize automatic locking. When the first door leaf is opened, the upper push block and the lower push block extend out to unlock the second door lock, and the two doors are opened simultaneously, so that the function of quick escape is realized. The second door lock is provided with an oblique bolt and a square bolt, the inner shifting wheel can be unlocked when the square bolt extends out of the lock, the outer shifting wheel cannot drive the inner shifting wheel to rotate, the double-opening escape door lock only allows one-way unlocking at regular time, and a good safety protection effect is achieved. When the square bolt retracts and the second door is in a lock unlocking state, the door can be opened by rotating the inner thumb wheel and the outer thumb wheel, and the locking mode is flexible.

Description

Two mortise lock for escape door that open

Technical Field

The utility model relates to a lock production facility field, in particular to two divisions of mortise lock for escape door.

Background

For a long time, the fire safety problem is always an important problem for managing intensive places of all people, and the fire safety exit problem is a problem which is well paid attention by managers of intensive places of fire technicians. According to statistics, the fire accidents causing more casualties are mostly tragic events caused by locking of a safety exit or unsmooth evacuation channels, so the design of the door lock at the exit of the escape door is of great importance. When considering the fire safety problem, need also consider good and simple and convenient locking function for the emergency exits of public security management problem, however present emergency exits function singleness, locking reliability are not good enough, especially two divisions of emergency exits, after manual control's first door was locked, in case can not open the door fast meeting the accident, lead to delaying valuable escape time, cause more personnel's injury even.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a two divisions of escape door mortise lock, the structure is ingenious, and the locking is nimble, can realize quick locking and quick unblock, can effectively improve the efficiency of fleing.

According to the utility model discloses an aspect provides a two mortise lock for escape door that open, including first lock, first lock is installed on two first door leafs that open the escape door, include:

the upper pull rod seat is arranged at the upper part of the first door lock; the rotating wheel is rotatably connected inside the first door lock and movably connected with the upper pull rod seat; the lower pull rod seat is arranged at the lower part of the first door lock and is movably connected with the rotating wheel; the upper push block assembly is arranged at the upper part of the first door lock and is movably connected with the rotating wheel; the lower push block component is arranged at the lower part of the first door lock and is movably connected with the lower pull rod seat; the door inserting assembly comprises an upper door inserting assembly and a lower door inserting assembly, the upper door inserting assembly is connected to the upper pull rod seat, the lower door inserting assembly is connected to the lower pull rod seat, the upper door inserting assembly comprises an upper inserting rod and an upper inserting rod seat assembly, and the upper inserting rod seat assembly is arranged at the top of the double-open escape door.

The rotating wheel drives the upper pull rod seat to retract towards the inside of the first door lock, the upper push block assembly and the lower pull rod seat are driven to retract simultaneously, the lower pull rod seat drives the lower push block assembly to move towards the inside of the first door lock, the door inserting assembly retracts to achieve an unlocking function, the first door leaf is opened, and meanwhile the upper inserting rod seat assembly locks the upper inserting rod.

When the first door leaf is closed, the upper inserted rod seat component releases the locking of the upper inserted rod, and the upper inserted rod and the lower inserted rod extend out of the first door lock, so that the locking function is realized.

The utility model discloses a two divisions of escape door mortise lock have following beneficial effect at least: in the embodiment, the upper push block assembly and the lower push block assembly are respectively positioned at the upper part and the lower part of the first door lock, the upper insertion rod and the lower insertion rod are respectively positioned at the upper part and the lower part of the first door lock, and the upper push block assembly, the lower push block assembly, the upper insertion rod and the lower insertion rod jointly realize the locking of the first door leaf, so that the stable locking of the door leaf is favorably realized; when the runner is rotated, the runner drives the upper pull rod seat to pull the upper insertion rod downwards for unlocking, the upper insertion rod seat component locks the upper insertion rod, the locking is released when the first door leaf is closed, the upper insertion rod extends out, the first door leaf is automatically locked, the unlocking and the locking are simple and convenient, and the personnel can escape in time when an accident happens.

According to the utility model discloses a two divisions of mortise lock for escape door, be equipped with between runner and the last ejector pad subassembly with both swing joint's last ejector pad driver piece subassembly, the runner drives when rotating and goes up ejector pad driver piece subassembly and then pulls the ejector pad subassembly and move.

According to the utility model discloses a two divisions of mortise lock for escape door, be equipped with between runner and the upper tie rod seat with both swing joint's upper tie rod seat transmission piece subassembly, upper tie rod seat transmission piece subassembly comprises upper tie rod seat transmission piece and upper tie rod seat connection piece, upper tie rod seat transmission piece and upper tie rod seat connection piece swivelling joint.

According to the utility model discloses a two divisions of mortise lock for escape door, be equipped with between lower push block subassembly and the lower pull rod seat with both swing joint's lower push block transmission piece subassembly, lower push block transmission piece subassembly swivelling joint is in first lock.

According to the utility model discloses an aspect a two mortise lock for escape door that open, push down the sliding block subassembly and include push down the sliding block, push down the sliding block connection piece and push down the sliding block spring down, push down the sliding block spring and realize the elastic connection of push down sliding block and lower sliding block connection piece down.

According to the utility model discloses a second aspect provides a two mortise lock for escape door that open, including the second lock, locate on the second door leaf relative with first door leaf, the second lock includes:

the latch bolt is connected to the upper part of the second door lock in a sliding way; the dead bolt assembly is connected to the lower part of the second door lock in a sliding manner; the inner thumb wheel is rotationally connected with the second door lock; the outer thumb wheel is adjacent to the inner thumb wheel and is rotatably connected in the second door lock; the shifting block is positioned below the inner shifting wheel and is rotationally connected to the interior of the second door lock; the conversion block is rotationally connected with the inner thumb wheel;

when the second door leaf is locked, the square bolt assembly extends out of the second door lock, the conversion block is located at the first position, and the outer thumb wheel is disconnected with the inner thumb wheel;

the inner shifting wheel is rotated to drive the latch bolt to move towards the inside of the second door lock, and meanwhile, the shifting block is driven to rotate, and when the shifting block rotates, the square bolt assembly is pulled to move towards the inside of the second door lock, so that the unlocking of the second door leaf is realized;

when the second door leaf is unlocked, the square tongue assembly is located inside the second door lock, the conversion block is located at the second position, the outer thumb wheel is connected with the inner thumb wheel (870) through the conversion block, and the second door leaf can be opened by rotating the outer thumb wheel.

The utility model discloses the second aspect a two mortise lock for escape door have following beneficial effect at least: this embodiment sets up the second lock that is located the second door leaf, and the second door lock is including setting up in the latch bolt on second lock upper portion and setting up in the square tongue subassembly of second door lock lower part, stretches out towards the outside direction of second door lock through stirring the square tongue subassembly, carries out the locking of first door leaf and second door leaf, and the conversion piece is in the first position this moment, and outer thumb wheel and interior thumb wheel disconnection, outer thumb wheel can't rotate inside wheel, realizes the one-way unblock of second door leaf, is favorable to safety protection. The inner shifting wheel is rotated to drive the latch bolt and the square bolt assembly to move towards the inside of the second door lock, so that the second door leaf is unlocked, the conversion block is located at the first position, the inner shifting wheel is connected with the outer shifting wheel, the inner shifting wheel can be driven by the outer shifting wheel to open the second door leaf, and the locking is effective and flexible to use.

According to the utility model discloses the second aspect a two mortise lock for escape door, interior thumb wheel receives external force rotation and drives the shifting block and produce rotatoryly, drives the conversion piece simultaneously and produces rotatoryly, and then outer thumb wheel is connected through conversion piece and interior thumb wheel realization.

According to the utility model discloses the second aspect a two mortise lock for escape door, the second door leaf is when unblock state, and the latch bolt stretches out in the outside of second lock to one side, stirs the square bolt subassembly and stretches out toward the outside of second lock, and the shifting block returns the primary importance from the second place, and the locking of second door leaf is realized to outer thumb wheel disconnection and interior thumb wheel being connected.

According to the utility model discloses the second aspect a two mortise lock for escape door, square tongue subassembly is including promoting piece, square tongue and square tongue transmission piece, promotes piece and square tongue subassembly sliding connection, square tongue transmission piece and square tongue sliding connection, promotes piece and square tongue transmission piece and is connected through riveting the hub connection.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

FIG. 1 is an axial view of a mortise lock for a double-open escape door according to an embodiment of the present invention;

fig. 2 is an exploded view of a first door lock according to an embodiment of the present invention;

FIG. 3 is an elevation view of a first door lock according to an embodiment of the present invention;

figure 4 is an isometric view of a first lower lock housing assembly according to an embodiment of the invention;

fig. 5(a) is an exploded view of an upper drawbar seat transmission plate assembly according to an embodiment of the present invention;

fig. 5(b) is an isometric view of an upper drawbar seat transmission plate assembly in accordance with an embodiment of the present invention;

fig. 6(a) is an exploded view of a push-up block drive plate assembly according to an embodiment of the present invention;

fig. 6(b) is an isometric view of a push-up block drive plate assembly according to an embodiment of the present invention;

fig. 7(a) is an exploded view of a push-up block assembly according to an embodiment of the present invention;

fig. 7(b) is an isometric view of an upper push block assembly in accordance with an embodiment of the present invention;

fig. 8(a) is an exploded view of the lower push block assembly according to the embodiment of the present invention;

fig. 8(b) is an isometric view of a lower thrust block assembly according to an embodiment of the present invention;

fig. 9 is an exploded view of a second door lock in accordance with an embodiment of the present invention;

FIG. 10 is a front view of a second door lock according to an embodiment of the present invention;

figure 11 is an isometric view of a second lower lock housing assembly in accordance with an embodiment of the present invention;

FIG. 12(a) is a front isometric view of a deadbolt drive plate in accordance with an embodiment of the present invention;

FIG. 12(b) is a reverse isometric view of the square tongue drive plate of an embodiment of the present invention;

FIG. 13 is a front view of an embodiment of the present invention;

fig. 14 is an isometric view of an upper rod socket assembly according to an embodiment of the present invention.

Reference numerals:

a first door lock 1; a second door lock 2;

a first lower lock housing assembly 100; a first lower lock case 101; a locking stud 102; a guide lock pin 103; a pin 104; a first upper lock case 110; a first panel 120; a first panel fixing piece 121;

a rotating wheel 200;

an upper tie bar mount strap assembly 300; an upper tie bar holder transmission strap 310; an upper tie bar base connecting piece 320; a first gasket 311; a shifting block positioning pin 312; a rivet shaft 313; a rivet 314; an upper pull rod seat 330;

the push-up block driving piece assembly 400; an up-push block driving piece 410; the driving plate transmission seat 420; an up-push block assembly 430; a push-up block 431; an up-push block connecting piece 432; a push down block assembly 440; a push-down block 441; a lower push block connecting piece 442; a pin 443; a lower push block spring 444; a spring 450; a spring guide bar 455;

a lower draw bar base 500; a lower pull rod seat drive strap 510; a lower insertion rod 520; an upper insertion rod 530; an upper rod socket assembly 540; an upper insert stem seating panel 541; a first upper plunger seat slide block 542; a second upper plunger seat sliding block 543; an upper plunger seat spring 544; an upper plunger mount securing sleeve 545; an upper plunger seat bottom piece 546; a bayonet mount 550; a lower plunger guide 560;

a push-down block transmission plate assembly 600; a lower push block driving lug 610;

a second lower lockhousing assembly 700; a second lower lock case 710; a guide pin 720; a second upper lock case 740; a second panel 750; a second panel fixing piece 751;

a spring guide 800; a spring guide pin 801; a dial block 810; a shifting block positioning pin 811; a thumb wheel return spring 820; a spring guide block 821; a latch tongue 830; a latch torsion spring 831; a square tongue 840; a square tongue block 841; a dead bolt connecting piece 842; a square tongue torsion spring 843; a pusher plate 844; a dead bolt drive block 850; a dead bolt positioning block 860; a positioning block torsion spring 861; an inner thumb wheel 870; an outer dial wheel 871; a gasket 872; a conversion block 880; a first conversion block torsion spring 881; a second transition piece torsion spring 882; spring alignment pins 883.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 8, an embodiment of the first aspect of the present invention provides a mortise lock for a double-open escape door, including a first door lock 1, the first door lock 1 is installed on a first door leaf of the double-open escape door, the first door lock 1 includes a first lock case, the first lock case includes a first lower lock case assembly 100 and a first upper lock case 110, and the first upper lock case 110 is installed on the first lower lock case assembly 100 in a covering manner. Referring to fig. 4, the first lower lock case assembly 100 includes a first lower lock case 101, a lock stud 102, a guide pin 103, and a pin shaft 104, and the first upper lock case 110 is mounted to the first lower lock case 101 by the lock stud 102 in a bolt-fastening manner. Referring to fig. 2, the first panel 120 is connected to the first lower lock case 101, and the first panel 120 has openings corresponding to two cavities formed in the first lower lock case 101 to allow the extension of the push-up block assembly 430 and the push-down block assembly 440. The first panel 120 is provided with a first panel fixing plate 121, and the first panel 120 and the first lower lock case 101 are fixed by the first panel fixing plate 121 through a bolt connection. The first panel 120 is fixedly installed on the first door leaf, so as to realize the installation of the first door lock 1 on the door. Referring to fig. 3, the upper pull rod holder driving piece assembly 300 is rotatably connected to the upper portion of the first lower lock case 101 through a dial piece positioning pin 312 installed on the first lower lock case 101, the upper pull rod holder driving piece assembly 300 includes an upper pull rod holder driving piece 310 and an upper pull rod holder connecting piece 320, shaft holes are formed at two ends of the upper pull rod holder connecting piece 320, a shaft hole mounting rivet 314 is rotatably connected to the upper pull rod holder driving piece 310 through a shaft hole at one end, the shaft hole at the other end is rotatably connected to the rotating wheel 200 rotatably connected to the first lower lock case 101 through a rotating shaft, the upper pull rod holder driving piece 310 rotates with the dial piece positioning pin 312 as a rotating center, and when the rotating wheel 200 rotates, the upper pull rod holder connecting piece 320 is driven to move so as to drive the upper pull rod holder driving piece 310 to rotate. The upper portion of the upper lever seat transmission piece 310 is connected to the upper lever seat 330 through the rivet shaft 313, the rivet shaft 313 is fixedly mounted on the upper portion of the upper lever seat transmission piece 310, and when the upper lever seat transmission piece 310 rotates, the upper lever seat 330 located on the upper portion of the first lower lock case 101 is driven to linearly move, it can be understood that the upper lever seat 330 moves downward when unlocking is performed, that is, the rotating wheel 200 rotates counterclockwise. Referring to fig. 3, the rotary wheel 200 has three extending portions extending outward in a radial direction, and the three extending portions are respectively hinged to the push-up block driving plate assembly 400, the pull-up rod seat connecting piece 320 and the pull-down rod seat driving piece 510.

The upper pushing block driving piece assembly 400 is arranged on the upper portion of the first lower lock shell 101 and comprises an upper pushing block driving piece 410 and a driving piece transmission seat 420, the driving piece transmission seat 420 is arranged at the bottom of the upper pushing block driving piece 410 and is movably connected with the rotating wheel 200, a chute is formed in the upper pushing block driving piece 410, and the upper pushing block driving piece 410 is slidably connected with the upper pushing block assembly 430 through the chute. When the rotating wheel 200 rotates in the counterclockwise direction, the push-up block driving piece 410 moves down linearly, and the push-up block assembly 430 extends out of the first door lock under the action of the chute; meanwhile, the runner 200 pushes the lower pull rod base transmission piece 510 to move linearly upwards, and pulls the lower pull rod base 500 to move linearly upwards.

The lower push block transmission plate assembly 600 comprises a lower push block transmission plate 610, the lower push block transmission plate 610 is preferably a triangular metal plate, the right end of the lower push block transmission plate 610 is movably connected with the lower pull rod seat 500 through a riveting shaft 313, the left end of the lower push block transmission plate is movably connected with the lower push block assembly 440 through a pin shaft 443, and the upper end of the lower push block transmission plate is rotatably connected with the first lower lock shell 101 through a pin shaft 104 and rotates around the pin shaft 104. When the lower pull rod seat 500 moves linearly upward, the lower push block driving piece 610 is driven to rotate counterclockwise, and the lower push block driving piece 610 drives the lower push block assembly 440 to move linearly toward the outside of the first door lock.

The lower push block assembly 440 is arranged at the lower part of the first door lock and comprises a lower push block 441, a lower push block connecting piece 442 and a lower push block spring 444, wherein the two ends of the lower push block spring 444 are connected with the lower push block 441 and the lower push block connecting piece 442, and the lower push block assembly 440 is used for buffering during unlocking, so that impact noise is favorably reduced, and durability is favorably improved. Meanwhile, the lower push block connecting piece 442 limits the lower push block 441 through the rivet 314, and keeps the linear movement of the lower push block 441 within a preset range.

The lower pull rod seat 500 is arranged at the lower part of the first door lock, the lower part of the lower pull rod seat 500 is connected with a lower insertion rod 520, the lower insertion rod 520 of the first door leaf is inserted into the door frame in a locking state so as to fix the door leaf, and the bottom of the second door leaf is also provided with a lower insertion rod guide seat 560 for guiding the lower insertion rod 520, so that the position of the lower insertion rod 520 is kept stable, and the lower insertion rod can be smoothly inserted into the door frame. On the other hand, the door frame is provided at the top and bottom thereof with a rod holder 550 for accommodating the upper rod 530 and the lower rod 520, respectively, for engagement with the upper rod 530 and the lower rod 520 when locked.

The upper rod 530 is connected to the upper portion of the upper rod holder 330, and the upper rod 530 is inserted into the door frame to fix the door when the first door is in the locked state. Meanwhile, referring to fig. 14, an upper rod socket assembly 540 is disposed on the upper portion of the upper rod 530, the upper rod socket assembly 540 is mounted on the top of the first door leaf and includes an upper rod socket panel 541, a first upper rod socket sliding block 542, a second upper rod socket sliding block 543, an upper rod socket spring 544, an upper rod socket fixing sleeve 545, and an upper rod socket bottom 546, the upper rod socket panel 541 is fixed on the top of the first door leaf by bolts, the upper rod socket fixing sleeve 545 is connected below the upper rod socket panel 541 by welding or bolts, the upper rod socket fixing sleeve 545 is disposed inside the upper rod socket fixing sleeve 545 and includes a first upper rod socket 542 and a second upper rod socket sliding block 543 with sliding blocks at two sides of a column, the upper rod socket spring 544 is disposed at the bottom of the upper rod socket fixing sleeve 545, the top of the upper rod socket spring 544 supports the first upper rod socket sliding block 542 and the second upper rod socket sliding block 543, and the bottom of the upper rod socket base 546 contacts, the upper plunger base bottom piece 546 and the upper plunger base securing sleeve 545 may be secured by bolting or snapping. First upper plunger sliding block 542 and second upper plunger sliding block 543 have a first inclined plane in the direction in which the first door leaf is closed, and the first inclined plane is favorable for easily pressing down first upper plunger sliding block 542 and second upper plunger sliding block 543 when the first door leaf is closed. Meanwhile, a second inclined surface is arranged on one side, opposite to the first upper plunger seat sliding block 542 and the second upper plunger seat sliding block 543, and the second inclined surface is matched with an inclined surface inside the upper plunger seat fixing sleeve 545; when the first upper plunger slide block 542 and the second upper plunger slide block 543 move away from the door frame, they protrude upward under the elastic support of the upper plunger spring 544, and they are drawn together under the guide of the second inclined surface toward the middle, so that the gap between the first upper plunger slide block 542 and the second upper plunger slide block 543 becomes smaller. Since the upper insertion rod 530 retracts into the upper insertion rod base fixing sleeve 545 in the door opening state, the protruding first upper insertion rod base sliding block 542 and the second upper insertion rod base sliding block 543 are closed at this time, so as to limit the extension of the upper insertion rod 530, thereby realizing the purpose of closing the door at any time; when the first door leaf is closed, the first upper plunger seat sliding block 542 and the second upper plunger seat sliding block 543 are pressed down, and the two slide down and open, and the upper plunger 530 automatically resets and extends upward and is inserted into the plunger seat 550 located at the upper portion of the door frame, so as to lock the first door leaf. It should be noted that when the first door leaf is closed but the upper rod 530 is not yet inserted into the rod holder 550, the upper rod 530 maintains the force applied to the door frame until the upper rod 530 is completely inserted into the rod holder 550. The door leaf is automatically locked by a flexible and ingenious method, hands are not needed for locking, the good safety protection performance of the door leaf is easy to realize, and the door leaf is simple and easy to use and is beneficial to improving the use experience.

When the door is opened, the thumb wheel 200 is rotated by an external force, it can be understood that a rotating shaft and a handle (not shown in the figure) are arranged on the rotating wheel 200, the handle and the rotating shaft are fixedly connected with the rotating wheel 200, a user rotates the thumb wheel 200 to rotate counterclockwise by rotating the handle, the thumb wheel 200 drives the upper pull rod base transmission piece assembly 300 to rotate, and simultaneously drives the upper push rod base driving piece assembly 400 to perform linear motion downwards and the lower pull rod base transmission piece 510 to perform linear motion upwards, the upper pull rod base transmission piece assembly 300 drives the upper pull rod base 330 to retract downwards, the upper push rod base driving piece assembly 400 drives the upper push rod assembly 430 to extend towards the outside of the first door lock 1, and the lower pull rod base transmission piece 510 drives the lower pull rod base 500 to retract upwards, that is, the upper insertion rod 530 and the lower insertion rod 520 are extracted from the insertion rod clamping base 550 of the door frame, so as to unlock the first door leaf; meanwhile, the lower pull rod seat 500 drives the lower push block transmission piece assembly 600 to rotate, and then the lower push block transmission piece assembly 600 drives the lower push block assembly 440 to extend out towards the outside of the first door lock 1, so that unlocking is realized, and the first door leaf is opened; at this time, the upper rod holder 330 pulls the upper plunger 530 to retract into the upper plunger holder assembly 540, the first upper plunger holder sliding block 542 and the second upper plunger holder sliding block 543 protrude above the upper plunger holder panel 541 under the action of the upper plunger holder spring 544 and are folded towards the middle, so that the upper plunger 530 is limited inside the upper plunger holder fixing sleeve 545; when the first door leaf is closed, the first upper sliding rod 542 and the second upper sliding rod 543 are pressed down into the upper sliding rod fixing sleeve 545 and are opened towards both sides, so that the limitation on the upper insertion rod 530 is removed, the upper insertion rod 530 is linearly moved upwards and inserted into the insertion rod clamping seat 550, and the lower insertion rod 520 is linearly moved downwards and inserted into the insertion rod clamping seat 550, so that the first door leaf is locked.

Optionally, a spring 450 is disposed at a lower portion of the upper push block driving plate assembly 400, a spring guide bar 455 is disposed inside the spring 450, a top of the spring 450 contacts with a bottom of the driving plate transmission seat 420, and is used for automatic resetting of the upper push block driving plate assembly 400, when the first door leaf is closed, the upper insertion bar 530 is released from limitation and extends upward, the spring 450 resets, the upper push block driving plate assembly 400 is pushed to reset upward, at this time, the rotating wheel 200 rotates clockwise, the upper push block driving plate assembly 400 drives the upper push block assembly 430 to reset inward of the first door lock 1, the rotating wheel 200 drives the lower pull rod seat transmission plate 510 and drives the lower pull rod seat 500 to move downward for resetting, the lower insertion bar 520 extends downward to insert into the insertion bar clamping seat 550 in the door frame, the lower push block assembly 440 resets inward of the first door lock 1 under the resetting of the lower push block driving plate assembly 600, and the first door lock 1 completes locking.

Referring to fig. 9 to 13, an embodiment of the second aspect of the present invention provides a mortise lock for double-acting escape door, including a second door lock 2, disposed on a second door leaf opposite to the first door leaf, the second door lock 2 includes:

and the second lock shell comprises a second lower lock shell assembly 700 and a second upper lock shell 740, and the second upper lock shell 740 is covered and mounted on the second lower lock shell assembly 700 through the lock stud 102. Referring to fig. 11, the second lower lock housing assembly 700 includes a second lower lock housing 710, a lock stud 102, a guide pin 720, and a guide lock pin 103. Referring to fig. 10, the second panel 750 is coupled to the second lower lock case 710 by a second panel fixing plate 751 using bolts, and the second panel 750 is mounted on the second door leaf by bolts. Referring to fig. 9, the second panel 750 has openings corresponding to two cavities in the second lower lock case 710, allowing the extension of the latch tongues 830 and the dead tongues 840. The latch bolt 830 is disposed on the upper portion of the second door lock 2 and slidably connected to the second lower lock housing assembly 700, and a latch bolt torsion spring 831 is disposed below the latch bolt 830. It will be appreciated that the latch tongue 830 has a slope in the direction of closing of the second door, which slope helps to easily press the latch tongue 830 into the interior of the second door lock 2 when the second door is closed. Meanwhile, the latch bolt 830 has a tail part which is in transmission with the inner thumb wheel 870, the tail part is provided with a transmission hook, and when the inner thumb wheel 870 rotates, the transmission hook is pulled to pull the latch bolt 830 to move linearly.

The square tongue assembly is arranged on the lower portion of the second door lock 2 and is in sliding connection with the second lower lock shell 710, the square tongue assembly comprises a pushing piece 844, a square tongue 840 and a square tongue transmission block 850, the pushing piece 844 is in sliding connection with the square tongue 840, the square tongue transmission block 850 is in sliding connection with the square tongue 840, the pushing piece 844 is connected with the square tongue transmission block 850 through a riveting shaft 313, a square tongue torsion spring 843 is arranged below the square tongue assembly, and the square tongue torsion spring 843 is in contact with the square tongue transmission block 850. The square tongue 840 comprises a square tongue block 841 and a square tongue connecting piece 842, the square tongue block 841 is internally provided with a cavity, the direction of the cavity is from the square tongue block 841 to the square tongue connecting piece 842, the pushing piece 844 is positioned in the cavity of the square tongue block 841, and the pushing piece 844 penetrates through the square tongue block 841 to be connected with the square tongue driving block 850.

A dead bolt positioning block 860 arranged at one end of the dead bolt assembly and contacting with the dead bolt connecting sheet 842, the dead bolt positioning block 860 is connected with the second lower lock shell 710 and the dead bolt assembly in a sliding way, a positioning block torsional spring 861 is arranged above the dead bolt positioning block 860, and the positioning block torsional spring 861 is used for resetting the dead bolt positioning block 860 downwards.

The inner thumb wheel 870 is rotatably connected with the second lower lock shell 710, a thumb wheel reset spring 820 is arranged above the inner thumb wheel 870, a spring guide seat 800 is arranged between the thumb wheel reset spring 820 and the inner thumb wheel 870, and the thumb wheel reset spring 820 keeps a certain elastic thrust on the inner thumb wheel 870 through the spring guide seat 800 to ensure the reset of the inner thumb wheel 870. The outside of the thumb wheel return spring 820 is provided with a spring guide 821 fixedly mounted on the second lower lock case 710 to prevent the thumb wheel return spring 820 from bending to cause non-return when compressed.

The outer thumb wheel 871 is arranged adjacent to the inner thumb wheel 870 and is rotatably connected with the second lower lock shell 710, and a gasket 872 is arranged between the inner thumb wheel 870 and the outer thumb wheel 871 and is used for separating the inner thumb wheel 870 from the outer thumb wheel 871. The middle parts of the inner thumb wheel 870 and the outer thumb wheel 871 are both provided with shaft holes for connecting a handle (not shown in the figure), and the handle rotates the inner thumb wheel 870 and the outer thumb wheel 871 through a rotating shaft. It should be noted that the inner thumb wheel 870 is located on one side pointing to the door closing direction of the second door, the outer thumb wheel 871 is located on the other side opposite to the inner thumb wheel 870, and the inner thumb wheel 870 and the outer thumb wheel 871 are driven by handles located on both sides.

The shifting block 810 is arranged below the inner shifting wheel 870 and is rotatably connected with the second lower lock shell 710. The shifting block 810 is provided with a riveting shaft and a shifting block positioning pin 811, the shifting block 810 is rotatably connected to the second lower lock shell 710 through the shifting block positioning pin 811, and the square tongue transmission block 850 is shifted through the riveting shaft.

The conversion block 880 is rotatably connected with the inner thumb wheel 870 and is located between the inner thumb wheel 870 and the thumb block 810, a first conversion block torsion spring 881 is arranged on the conversion block 880, one end of the first conversion block torsion spring 881 is installed on the conversion block 88, and the other end is connected with the inner thumb wheel 870. The lower portion of the shifting block 880 is in contact with a second shifting block torsion spring 882 mounted to the dial 810.

When the second door leaf is locked, the square tongue 840 and the pushing sheet 844 extend out of the second door lock 2, the conversion block 880 is located at the first position, and the outer thumb wheel 871 cannot drive the inner thumb wheel 870 to rotate through the conversion block 880. In the unlocking process, when the inner thumb wheel 870 rotates clockwise due to external force, the inner thumb wheel 870 drives the latch bolt 830 to perform linear motion in the direction inside the second door lock 2, and simultaneously drives the dial block 810 to rotate counterclockwise, when the dial block 810 rotates, the inner thumb wheel drives the latch bolt driving block 850 to perform linear motion in the direction inside the second door lock 2, the latch bolt driving block 850 pushes the latch bolt positioning block 860 to perform linear motion upward, so that the limit on the latch bolt 840 is removed, when the latch bolt driving block 850 moves for a period of displacement, the latch bolt is in contact with the latch bolt 840 and drives the latch bolt 840 to perform linear motion in the same direction as the latch bolt driving block 850, and at the moment, the latch bolt 830 and the latch bolt 840 both retract into the second door lock 2, so that the second door leaf is unlocked, and the second door leaf can be opened.

When the second door leaf is in an unlocked state, the square tongue 840 and the pushing piece 844 are located inside the second door lock, the conversion block 880 is located at the second position, and the outer thumb wheel 871 can drive the inner thumb wheel 870 to rotate through the conversion block 880, so that the latch tongue 830 is pulled to retract into the second door lock, and the second door leaf is opened.

When the first door leaf and the second door leaf are closed and are in a locking state, when the first door leaf is unlocked, the rotating wheel 200 is rotated, the upper pushing block assembly 430 is pulled to perform linear motion to stretch out of the first door lock 1, the latch 830 is pushed to linearly move towards the inside of the second door lock 2, meanwhile, the lower pushing block assembly 440 is pushed to linearly move to stretch out of the first door lock 1, the pushing sheet 844 is pushed to retract towards the inside of the second door lock, the position constraint on the latch 840 is relieved by the latch positioning block 860 at the moment, the latch transmission block 850 is moved for a certain distance to drive the latch 840 to retract towards the inside of the second door lock 2, and the first door leaf and the second door leaf are unlocked simultaneously.

When the second door leaf is closed and in an unlocked state, the latch 830 extends out of the second door lock 2, the square tongue transmission block 850 is shifted by a special key or a locking tool (not shown in the figure) to move linearly towards the outside of the second door lock 2, the square tongue transmission block 850 drives the square tongue positioning block 860 to move linearly upwards, the position constraint on the square tongue 840 is removed, the square tongue transmission block 850 pushes the square tongue 840 to move linearly towards the outside of the second door lock 2, the toggle block returns to the first position from the second position after the square tongue 840 extends out, the outer toggle wheel 871 cannot drive the inner toggle wheel 870 to rotate through the conversion block 880, meanwhile, the square tongue positioning block 860 moves downwards under the action of the positioning block torsion spring 861, the movement of the square tongue 840 is limited, and the locking of the second door leaf is realized. The unblock of two escape doors can be realized to the unblock of second door leaf, can realize opening the door under the emergency fast, improves the efficiency of fleing, reduces personnel's injury.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. The utility model provides a two mortise lock for escape door that open is applied to two escape doors, two escape doors include first door leaf and second door leaf, its characterized in that includes:

the first door lock (1) is arranged on the first door leaf;

the first door lock (1) comprises:

an upper pull rod seat (330) arranged at the upper part of the first door lock (1);

the rotating wheel (200) is rotatably connected to the inside of the first door lock (1) and movably connected with the upper pull rod seat (330);

the lower pull rod seat (500) is arranged at the lower part of the first door lock (1) and is movably connected with the rotating wheel (200);

the upper pushing block assembly (430) is arranged at the upper part of the first door lock (1) and is movably connected with the rotating wheel (200);

the lower push block component (440) is arranged at the lower part of the first door lock (1) and is movably connected with the lower pull rod seat (500);

the door plug assembly comprises an upper door plug assembly and a lower door plug assembly, the upper door plug assembly is fixedly connected with the upper pull rod seat (330), and the lower door plug assembly is fixedly connected with the lower pull rod seat (500); the upper door inserting assembly comprises an upper inserting rod (530) and an upper inserting rod seat assembly (540), and the upper inserting rod seat assembly (540) is arranged at the top of the double-open escape door;

the rotating wheel (200) is rotated to drive the upper pull rod seat (330) to retract towards the interior of the first door lock (1), and simultaneously drive the upper push block assembly (430) and the lower pull rod seat (500) to retract, and simultaneously the lower pull rod seat (500) drives the lower push block assembly (440) to move towards the interior of the first door lock (1), so that the door plug assembly retracts to realize an unlocking function, the first door leaf is opened, and simultaneously the upper plug rod seat assembly (540) locks the upper plug rod (530);

when the first door leaf is closed, the upper inserted link seat assembly (540) releases the locking of the upper inserted link (530), and the upper inserted link (530) extends out of the first door lock (1), so that the locking function is realized.

2. The mortise lock for double-open escape door according to claim 1, wherein: an upward pushing block driving piece assembly (400) movably connected with the rotating wheel (200) and the upward pushing block assembly (430) is arranged between the rotating wheel (200) and the upward pushing block assembly (430), and the rotating wheel (200) drives the upward pushing block driving piece assembly (400) to further pull the upward pushing block assembly (430) to move when rotating.

3. The mortise lock for a double-acting escape door according to claim 1, wherein: an upper pull rod seat transmission piece assembly (300) movably connected with the runner (200) and the upper pull rod seat (330) is arranged between the runner (200) and the upper pull rod seat (330), the upper pull rod seat transmission piece assembly (300) is composed of an upper pull rod seat transmission piece (310) and an upper pull rod seat connection piece (320), and the upper pull rod seat transmission piece (310) is rotatably connected with the upper pull rod seat connection piece (320).

4. The mortise lock for a double-acting escape door according to claim 1, wherein: the lower push block transmission piece component (600) is arranged between the lower push block component (440) and the lower pull rod seat (500) and is movably connected with the lower push block transmission piece component (600), and the lower push block transmission piece component (600) is rotatably connected into the first door lock (1).

5. The mortise lock for a double-acting escape door according to claim 1, wherein: the lower push block assembly (440) comprises a lower push block (441), a lower push block connecting piece (442) and a lower push block spring (444), and the lower push block spring (444) realizes the elastic connection of the lower push block (441) and the lower push block connecting piece (442).

6. The utility model provides a two mortise lock for escape door which characterized in that includes:

the second door lock (2) is arranged on a second door leaf opposite to the first door leaf;

the second door lock (2) comprises:

the latch bolt (830) is connected to the upper part of the second door lock (2) in a sliding way;

the square bolt assembly is connected to the lower part of the second door lock (2) in a sliding manner;

an inner dial wheel (870) rotatably connected to the inside of the second door lock (2);

the outer dial wheel (871) is arranged adjacent to the inner dial wheel (870) and is rotatably connected in the second door lock (2);

a dial block (810) located below the inner dial wheel (870) and rotatably connected to the second door lock (2);

a transition block (880) rotatably connected to the inner thumb wheel (870);

when the second door leaf is locked, the dead bolt assembly extends out of the second door lock (2), the conversion block (880) is located at a first position, and the outer thumb wheel (871) is disconnected from the inner thumb wheel (870);

the inner shifting wheel (870) is rotated to drive the latch bolt (830) to move towards the inside of the second door lock (2), and simultaneously drive the shifting block (810) to rotate, and when the shifting block (810) rotates, the square bolt assembly is pulled to move towards the inside of the second door lock (2), so that the unlocking of the second door leaf is realized;

when the second door leaf is unlocked, the square tongue assembly is located inside the second door lock (2), the conversion block (880) is located at a second position, the outer thumb wheel (871) is connected with the inner thumb wheel (870) through the conversion block (880), and the second door leaf can be opened by rotating the outer thumb wheel (871).

7. The mortise lock for a double-acting escape door according to claim 6, wherein: the inner shifting wheel (870) is rotated by external force to drive the shifting block (810) to rotate, so that the conversion block (880) is driven to rotate, and the outer shifting wheel (871) is connected with the inner shifting wheel (870) through the conversion block (880).

8. The mortise lock for a double-acting escape door according to claim 6, wherein: when the second door leaf is in an unlocked state, the latch bolt (830) extends out of the second door lock (2), the square bolt assembly is stirred to extend out of the second door lock (2), the shifting block (810) returns to the first position from the second position, the outer shifting wheel (871) is disconnected from the inner shifting wheel (870), and the second door leaf is locked.

9. The mortise lock for a double-acting escape door according to claim 6, wherein: the square tongue assembly comprises a pushing piece (844), a square tongue (840) and a square tongue transmission block (850), the pushing piece (844) is in sliding connection with the square tongue assembly, the square tongue transmission block (850) is in sliding connection with the square tongue (840), and the pushing piece (844) is connected with the square tongue transmission block (850) through a riveting shaft (313).

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