CN111255294A

CN111255294A - Lock catch structure

Info

Publication number: CN111255294A
Application number: CN202010170578.7A
Authority: CN
Inventors: 韩文杰; 王壤
Original assignee: Ningbo Wangtong Locks Co Ltd
Current assignee: Ningbo Wangtong Locks Co Ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-06-09

Abstract

The invention discloses a lock catch structure, comprising: the lock comprises a lock tongue, a lock cylinder, a rotating rod and at least one hook component; one end of the lock cylinder is provided with a connecting block, one side of the connecting block is in transmission connection with a lock tongue and is used for driving the lock tongue to reciprocate, and one side of the lock tongue is provided with a rack; the rotating rod is provided with a gear, and the gear is meshed with the rack; the hook assembly is mounted on the rotating rod. According to the invention, parallel movement of the lock tongue is converted into gear rotation movement through the gear rack structure, so that the rotating rod is driven to rotate, the hook assembly is driven to rotate to realize locking and unlocking of the device to be locked, a single lock cylinder can simultaneously control a plurality of hook assemblies to lock or unlock a plurality of devices to be locked, and the defect that the existing lock catch structure cannot simultaneously control a plurality of doors or windows is overcome.

Description

Lock catch structure

Technical Field

The invention relates to the field of lockset production, in particular to a lock catch structure.

Background

The conventional patent document CN101148961 discloses a hidden latch, which is installed in a horizontally-pulled inner window frame, and a latch seat is installed in an outer window frame, so that when the hidden latch is activated, a hook can be rotated out to hook the latch to achieve the locking effect. The hidden type buckle lock consists of a base, an upper hook piece, a lower hook piece, an upper clamping button, a lower clamping button, a gear disc, an upper pull rod, a lower pull rod and a cover plate. The components are assembled in the base, and are covered by the cover plate and riveted, wherein the upper hook sheet and the lower hook sheet are connected with the upper pull rod and the lower pull rod through the upper clamping button and the lower clamping button, the tail end of the pull rod is provided with a rack which can be meshed with a gear disc, the center of the gear disc is provided with a polygonal hole, and the center of the clamping button is provided with a through hole. The unlocking is realized by two support rods on the rotary handle, and the unlocking can also be realized by inserting a polygonal shaft into a polygonal hole in the center of the gear disc by using a single-shaft hidden rotary handle. The door lock is suitable for a door lock, but the moving strokes of the upper hook plate and the lower hook plate are necessarily equal to the rotating stroke of the key, so that the moving distances of the upper hook plate and the lower hook plate are limited, and the door lock is only suitable for a single door or window.

Similarly, patent document CN101372881 discloses a framed window padlock, which has a lock frame and a lock cylinder assembly, wherein the lock frame is composed of a panel with a press window and two side plates for mounting the lock cylinder assembly; the lock core assembly consists of a pressing plate and a lock catch, the upper end of the pressing plate is connected with the side plate of the mounting groove through a pin shaft in a pin joint mode, and the lock catch is fixedly arranged at the lower end of the pressing plate; a locking spring is arranged between the upper end of the pressure plate and the panel. Likewise, the movable distance between the pressing plate and the lock catch is limited, and the simultaneous operation of a plurality of doors or windows is impossible.

Disclosure of Invention

The invention provides a lock catch structure aiming at the problems, and overcomes the defect that the existing lock catch structure cannot control a plurality of doors or windows simultaneously.

The technical scheme adopted by the invention is as follows:

a latch structure, comprising:

a lock tongue;

a lock core; one end of the lock cylinder is provided with a connecting block, one side of the connecting block is in transmission connection with a lock tongue and is used for driving the lock tongue to reciprocate, and one side of the lock tongue is provided with a rack;

a rotating rod; the rotating rod is provided with a gear, and the gear is meshed with the rack; and

the hook assembly is arranged on the rotating rod and used for locking or unlocking the device to be locked. According to the invention, parallel movement of the lock tongue is converted into gear rotation movement through the gear rack structure, so that the rotating rod is driven to rotate, the hook assembly is driven to rotate to realize locking and unlocking of the device to be locked, a single lock cylinder can simultaneously control a plurality of hook assemblies to lock or unlock a plurality of devices to be locked, and the defect that the existing lock catch structure cannot simultaneously control a plurality of doors or windows is overcome.

Optionally, the hook assembly comprises a locking hook and a fixed seat, and the locking hook is rotatably installed in the fixed seat.

Optionally, the locking hook includes a fixed cylinder and a hook body fixedly connected with the fixed cylinder, one side of the fixed cylinder is rotatably inserted into the fixed seat, and one end of the rotating rod is fixed in the fixed cylinder.

Optionally, the locking structure further includes a door plate, and one side of the fixing seat is fixed on the door plate.

Optionally, the lock catch structure further comprises a lock case, the lock case is fixed to the door plate, and the lock cylinder is installed in the lock case.

Optionally, a through hole for conveniently installing a lock tongue is formed in the lock cylinder; the rear end of the lock shell is provided with a rear cover. The lock shell and the through hole are arranged, so that the lock hook can be limited and prevented from deflecting.

Optionally, the hook assemblies are a pair, and the pair of hook assemblies are respectively arranged at two ends of the rotating rod.

Optionally, a convex column is arranged on the connecting block and is arranged on the outer side edge of the connecting block.

Optionally, a transverse sliding groove convenient for the convex column to be inserted is formed in one side of the lock tongue. The invention utilizes the eccentric wheel principle to convert the rotation of the key into the rotation of the connecting block, and has simple structure and convenient operation.

(III) advantageous effects

1. According to the invention, parallel movement of the lock tongue is converted into gear rotation movement through the gear rack structure, so that the rotating rod is driven to rotate, the hook assembly is driven to rotate to realize locking and unlocking of the device to be locked, a single lock cylinder can simultaneously control a plurality of hook assemblies, and then a plurality of devices to be locked are locked or unlocked.

2. The invention utilizes the eccentric wheel principle to convert the rotation of the key into the rotation of the connecting block, and has simple structure and convenient operation.

Description of the drawings:

FIG. 1 is an assembly view of a latch structure according to embodiment 1 of the present invention;

fig. 2 is an exploded view of a latch structure according to embodiment 1 of the present invention;

FIG. 3 is an assembly view of the latch structure of embodiment 3 of the present invention;

FIG. 4 is a partial enlarged view of part A of FIG. 2 of the latch structure according to embodiment 3 of the present invention;

FIG. 5 is a side view of the rotary rod of the latch structure of embodiment 3 of the present invention;

fig. 6 is a buzzer working circuit of a latch structure in embodiment 3 of the present invention.

The figures are numbered:

1. the lock bolt, 2, lock core, 3, bull stick, 4, door plant, 5, lock shell, 6, hook component, 7, connecting block, 8, rack, 9, gear, 10, perforation, 11, back lid, 12, projection, 13, spout, 14, latch hook, 15, fixing base, 16, fixing cylinder, 17, hook body, 18, automatic locking component, 19, battery, 20, fixed conducting block, 21, electric brush piece, 22, control switch, 23, buzzer, 24, mounting, 25, insulator, 26, first magnet, 27, second magnet, 28, fixing cylinder, 29, sliding block, 30, copper spring, 31, third magnet, 32, hot melt adhesive tape, 33, heating wire, 34, M, the initial working face.

The specific implementation mode is as follows:

the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 and 2, the technical scheme adopted by the invention is as follows:

a latch structure, comprising: spring bolt 1, lock core 2, bull stick 3, door plant 4, lock shell 5 and a pair of hook component 6. One end of the lock cylinder is provided with a connecting block 7, one side of the connecting block is in transmission connection with a lock tongue and is used for driving the lock tongue to reciprocate, and one side of the lock tongue is provided with a rack 8; the rotating rod is provided with a gear 9, the gear is meshed with the rack, and the pair of hook assemblies are respectively arranged at two ends of the rotating rod. The lock shell is fixed on the door plate, and the lock cylinder is installed in the lock shell. The lock core is provided with a through hole 10 convenient for installing a lock tongue; the rear end of the lock shell is provided with a rear cover 11. The connecting block is provided with a convex column 12, and the convex column is arranged on the outer side edge of the connecting block. One side of the lock tongue is provided with a transverse sliding groove 13 which is convenient for the convex column to be inserted. The latch hook of the present embodiment is used for hooking the window body and the like.

The hook assembly comprises a locking hook 14 rotatably mounted in a fixed seat and a fixed seat 15. The latch hook comprises a fixed cylinder 16 and a hook body 17 fixedly connected with the fixed cylinder, one side of the fixed cylinder is rotatably inserted into the fixed seat, and one end of the rotating rod is fixed in the fixed cylinder. One side of the fixed seat is fixed on the door plate. The torsional spring structure can also be equipped with on the coupler body of this embodiment, realizes automatic resilience, and the automatic resilience of hook on the hook subassembly targets in place after unblanking, can pin the door automatically after bumping the door. The fixed cylinder is internally provided with an installation groove matched with the rotating rod.

In this embodiment, the cross section of the rotating rod is rectangular.

When this embodiment was implemented, the lock core rotated, drove the connecting block and rotated, turned into the rotation of connecting block with the rotation of key by the eccentric wheel principle for the spring bolt slides around perforating, and gear rack structure changes the parallel translation of spring bolt into gear rotary motion, and then drives the bull stick and rotate, drives the latch hook and rotates and realize the switch lock.

Example 2

A latch structure, comprising:

a lock tongue;

at least one hook assembly mounted on the turn bar.

Example 3

As shown in fig. 3, 4, 5 and 6, the difference between the embodiment 3 and the embodiment 1 is that the latch structure further includes an automatic locking assembly 18, a battery 19, a fixed conductive block 20, a brush piece 21, a control switch 22 and a buzzer 23, the battery and the fixed conductive block are fixed inside the door panel, and the power supply is sequentially connected to the fixed conductive block, the brush piece, the automatic locking assembly, the control switch and the buzzer through wires. One end of the electric brush piece is electrically connected with a fixed conductive block, the rotating rod is a hexagonal prism, the rotating rod comprises a fixed piece 24 and two sections of insulating pieces 25 positioned on two sides of the fixed piece, annular first magnets 26 and annular second magnets 27 are respectively arranged in two alternate edge surfaces of the fixed piece, the S poles of the first magnets face outwards, and the N poles of the first magnets face inwards; the N pole of the second magnet faces outwards, and the S pole of the second magnet faces inwards; also provided in the fixture is a conducting strip 34 located in the middle of the first magnet. The brush plate continuously contacts the conductive plate. The control switch is installed at one side edge of the door panel. Wherein, the initial working surface M (the surface against which the sliding block abuts in the state that the key is not inserted) of the rotating rod is not provided with a magnet, and the first magnet, the second magnet and the initial working surface are arranged alternately.

The automatic locking subassembly is installed on the bull stick, the automatic locking subassembly includes solid fixed cylinder 28 and installs the sliding block 29 in solid fixed cylinder, be equipped with copper spring 30 between the end wall of sliding block and solid fixed cylinder, copper spring is used for providing the elasticity that makes the sliding block conflict bull stick surface. An annular third magnet 31 is further arranged in the sliding block, the S pole of the third magnet faces outwards, the N pole of the third magnet faces inwards, a hot melt adhesive tape 32 is arranged in the center of the third magnet, a heating wire 33 is wrapped in the hot melt adhesive tape, one end of the copper spring is communicated with the control switch, the other end of the copper spring is electrically connected with the heating wire, and the tail end of the heating wire is continuously contacted with the conducting strip. The melting point of the hot melt adhesive tape in this example was 90-120 ℃. The buzzer, the battery and the electric brush piece in the embodiment are all products available in the market.

The current key use, it is excessive to rotate the key when appearing for the key is disconnected in the lock core, because the torsional spring of lock core is automatic kick-backs, and door or window lock is died and can't be opened this moment, need wait for the professional to open the door and can get into, and the user can't open the door body in this in-process, gets into indoorly, and the user has the arrival of waiting for the person of unblanking in the open air for a long time.

In the implementation of the embodiment, before the key is inserted, the sliding block is abutted against the initial working surface under the action of the copper spring, the rotating rod rotates along with the rotation of the rotating rod, the sliding block is contacted with the first magnet, the contact surface of the third magnet on the sliding block has the same magnetic pole with the contact surface of the first magnet, so that the sliding block is separated from the surface of the rotating rod, a user obviously feels that the resistance is reduced, reminds the user of rotating the proper working surface of the knife and does not need to further rotate, the working circuit of the buzzer is disconnected and stops working, when the sliding block is contacted with the second magnet due to over-rotation, the buzzer works again to give an alarm, the contact surface of the third magnet on the sliding block is opposite to the magnetic pole of the contact surface of the first magnet at the moment, the rebounding resistance of the rotating rod is increased, the door is kept in an open state for a short time, the rebounding process of the rotating rod, during which the operator can return the key to the normal state by reversing it and then close the control switch. When the key breaks, the automatic locking assembly, the battery, the fixed conductive block, the electric brush piece, the control switch and the buzzer work for a long time to enable the heating wire to continuously generate heat, the molten hot melt adhesive tape is molten, the contact surface of the third magnet is adhered to the contact surface of the first magnet, and therefore the embarrassed situation that a user is locked outside a door and the like is avoided.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.

Claims

1. A latch structure, comprising:

a lock tongue;

the hook assembly is arranged on the rotating rod and used for locking or unlocking the device to be locked.

2. A latch construction according to claim 1, wherein the hook assembly comprises a shackle and an anchor, the shackle being rotatably mounted in the anchor.

3. A latch construction according to claim 2, wherein said latch hook comprises a fixed cylinder and a hook body fixedly connected to the fixed cylinder, one side of said fixed cylinder being rotatably inserted into the fixed seat, and one end of said rotary rod being fixed to the fixed cylinder.

4. A latch construction according to claim 3, further comprising a door panel, said anchor being secured to the door panel on one side.

5. A shackle structure as defined in claim 4, further comprising a lock housing secured to the door panel, the lock cylinder being mounted in the lock housing.

6. A hasp structure as claimed in claim 5 wherein said lock core is provided with a through hole for facilitating installation of the bolt; the rear end of the lock shell is provided with a rear cover.

7. A latch construction according to claim 1 or 2 or 3 or 4 or 5 or 6 wherein the hook members are a pair, the pair of hook members being spaced apart at the ends of the pivot rod.

8. A locking arrangement as claimed in claim 1, 2, 3, 4, 5 or 6 wherein the connecting block is provided with a boss which is mounted on the outer edge of the connecting block.

9. A hasp structure as claimed in claim 8 wherein one side of said locking tongue is provided with a transverse sliding slot for facilitating insertion of said stud.