CN217528823U

CN217528823U - Pipe bender

Info

Publication number: CN217528823U
Application number: CN202221723687.8U
Authority: CN
Inventors: 郭定云
Original assignee: Zhejiang Weipeng Refrigeration Equipment Co ltd
Current assignee: Zhejiang Weipeng Refrigeration Equipment Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-10-04
Anticipated expiration: 2032-07-05

Abstract

The utility model provides a pipe bender, it has solved current pipe bender and has used not smooth problem. The pipe bender comprises a first force application rod, a bending die and a supporting seat, wherein the bending die and the supporting seat are in rotating fit through a crank; the force application rod I also comprises an inclined block which is arranged at the other end of the straight rod body and matched with the supporting surface, an included angle between the inclined block and the straight rod body is an obtuse angle, and the inclined block is attached to the mounting surface; the middle part of the inclined block is hinged with the supporting seat through a shaft piece perpendicular to the mounting surface, a locking structure enabling the inclined block to be locked at two positions of 0 degree and 180 degrees is arranged between the supporting seat and the inclined block, and the first force applying rod is rotated through external force to release the limitation of the locking structure on the inclined block. This hickey uses smoothly.

Description

Pipe bender

Technical Field

The utility model belongs to the technical field of machinery, a hickey is related to.

Background

The pipe bender is a tool used in the process of installing and distributing pipes of an air conditioner and is used for bending the copper pipes of the air conditioner.

The existing pipe bender is a movable rolling pipe bender (application number: 01264417. X) disclosed in Chinese patent library, which is composed of an upper force application rod, a lower force application rod, a bending die, a base, a steering device, a movable crank, two groups of rotating shafts and a fixing and locking device, wherein the upper force application rod is a long cylinder, a rod head is arranged in the steering device, and a user holds the tail of the rod and applies force to drive the steering device to rotate along the radian of the bending die; the lower force application rod is a long cylinder, the rod head is in an inclined plane shape and is arranged on the side edge of the base, and a user holds the tail of the rod and applies force to stabilize the base; the upper edge of the bending die is in an arc groove shape, the bottom edge of the bending die is arranged at the top of the base, and the lower edge of the bending die is planar; the base is characterized in that a U-shaped notch is arranged at a proper position of the front side end of the base, one end of the notch is provided with an inner bent groove, the shape of the inner bent groove is matched with that of a workpiece so as to place the workpiece into the notch and serve as a processed fixed point, the upper end plane of the base is in a groove shape, and the width of two inner side surfaces of the groove is allowed to be placed into a bending die, so that the fixing strength of the base and the bending die can be enhanced; a groove is arranged in the steering device and used for placing the movable wheel, a brake block is arranged at a proper position outside the steering device and used for controlling the maximum angle with the processing; two holes are respectively arranged on the end surface of one side of the movable crank, and the two holes are respectively connected with a steering device and one side surface adjacent to the bending die so as to switch the force application direction in a sliding manner; the two sets of rotating shafts and the locking device are connected with the movable crank, the steering device and the bending die and apply force for transmission.

When the pipe bender is at the end of working, the two hands are gradually crossed and finally approximately vertical, so that the operation is more torsional, the force application is not facilitated, and the bending quality of the copper pipe is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a use smooth and easy and be convenient for the hickey of application of force.

The purpose of the utility model can be realized by the following technical proposal: a pipe bender comprises a first force application rod, a bending die and a supporting seat, wherein the bending die and the supporting seat are rotationally matched through a crank, a second force application rod is arranged on the bending die, a roller matched with the bending die is rotationally arranged on one side of the supporting seat, the first force application rod comprises a straight rod body, one end of the straight rod body is a holding part, the pipe bender is characterized in that an obliquely arranged mounting surface is formed on the other side of the supporting seat, and an included angle between an extension line of the mounting surface and the axis of the crank is an acute angle; the force application rod I also comprises an inclined block which is arranged at the other end of the straight rod body and matched with the supporting surface, an included angle between the inclined block and the straight rod body is an obtuse angle, and the inclined block is attached to the mounting surface; the middle part of the inclined block is hinged with the supporting seat through a shaft piece perpendicular to the mounting surface, a locking structure enabling the inclined block to be locked at two positions of 0 degree and 180 degrees is arranged between the supporting seat and the inclined block, and the first force applying rod is rotated through external force to release the limitation of the locking structure on the inclined block.

During initial state, the tilting block is in 0 degree position, swing application of force pole drive supporting seat rotation and through bending die and gyro wheel cooperation crooked copper pipe after that, when application of force pole one swings to being approximately parallel with application of force pole two, rotate application of force pole one alone and make the tilting block rotate to 180 degrees positions, application of force pole one is approximately perpendicular with application of force pole two this moment, pendulum application of force pole one can make the supporting seat continue to swing crooked copper pipe down like this, whole process not only operates more smoothly, and the application of force is more smooth and easy, even, effectively improve crooked quality.

In the pipe bender, the mounting surface is provided with mounting holes along the axial direction of the shaft piece, and the mounting holes and the shaft piece are distributed along the inclined direction of the mounting surface; the locking structure comprises an elastic plunger fixed in the mounting hole, the elastic plunger comprises a ball head, two positioning holes matched with the ball head are formed in the inclined block along the axial direction of the shaft piece, the shaft piece is located between the two positioning holes, and the ball head can be pressed on the inner walls of the two positioning holes respectively. The elastic plunger piston is commercially available, so that the inclined block and the supporting seat can be conveniently installed in a matched mode.

In the pipe bender, the type of the positioning hole is a taper hole or a ball hole.

In the pipe bender, the elastic plunger is screwed in the corresponding mounting hole, so that the assembly is further facilitated.

As another scheme, in the pipe bender, mounting holes are formed in the mounting surface along the axial direction of the shaft, and the mounting holes and the shaft are distributed along the inclined direction of the mounting surface; the locking structure comprises a spring and a steel ball which are arranged in the mounting hole, two spherical surfaces matched with the steel ball are arranged on the inclined block, and one side of the steel ball has a tendency of being respectively pressed on the two spherical surfaces under the action of the spring.

In the pipe bender, a first threaded hole is formed in the mounting surface along the axial direction of the shaft, a through hole is correspondingly formed in the inclined block, the shaft is a bolt inserted into the through hole, the rod part of the bolt is screwed in the first threaded hole, and the head part of the bolt is pressed on the inclined block. Adopt above-mentioned design, further convenient equipment.

As another scheme, in the pipe bender, the shaft is a convex column integrally formed on the mounting surface, the inclined block is correspondingly provided with a connecting hole in a penetrating manner, the convex column penetrates through the connecting hole and is in threaded connection with a nut, and the nut is pressed on the inclined block.

In the pipe bender, a second threaded hole is formed in the bending die, and one end of the second force application rod is in threaded connection with the second threaded hole.

In the pipe bender, the first force application rod is of a split structure, the inclined block is integrally formed with an internal threaded pipe matched with the straight rod body, and the end part of the straight rod body, which is not the holding part, is screwed in the internal threaded pipe. Therefore, during actual production, the straight rod body and the force application rod II can adopt the same component, so that the investment of a processing die or processing equipment is omitted, and the production cost is reduced.

Compared with the prior art, the pipe bender has the following advantages:

1. in the copper pipe bending process, when the first force application rod swings to be approximately parallel to the second force application rod, the first force application rod can be independently rotated to enable the inclined block to rotate to the position of 180 degrees, and the first force application rod is approximately perpendicular to the second force application rod, so that the first force application rod can enable the supporting seat to continuously swing to bend the copper pipe, the whole process is smooth in operation, force application is smooth and even, and the bending quality is effectively improved.

2. The first force application rod consists of an inclined block and a straight rod body which are connected together through threads, so that the straight rod body and the second force application rod can adopt the same component during actual production, investment of a processing die or processing equipment is omitted, and production cost is reduced.

Drawings

Fig. 1 is a schematic view of the state of the tube bender with the tilting block in the 0 degree position.

Fig. 2 is a schematic sectional structural view of the connection between the first force application rod and the supporting seat.

Fig. 3 is a schematic diagram of an explosive structure of the connection of the first force application rod and the supporting seat.

Fig. 4 is a schematic view of the state of the tube bender with the tilt block in the 180 degree position.

In the figure, 1, a force application rod I; 1a, a straight rod body; 1b, a holding part; 1c, an inclined block; 1d, an internal threaded tube; 1e, positioning holes; 2. a second force application rod; 3. a crank; 4. bending a die; 4a, a main body; 4b, forming grooves; 5. a supporting seat; 5a, a mounting surface; 6. a roller; 6a, a limiting groove; 7. a shaft member; 8. an elastic plunger; 8a and a ball head.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in figure 1, the pipe bender comprises a first force application rod 1, a second force application rod 2, a bending die 4 and a supporting seat 5 which are in rotating fit through a crank 3.

Wherein,

the bending die 4 comprises a main body 4a which is strip-shaped and has a substantially U-shaped cross section, and when in use, the axis of the main body 4a is horizontally arranged. As shown in fig. 1, the front end of the main body 4a is provided with scale marks for displaying angles, the outer wall of the main body 4a is provided with a row of U-shaped forming grooves 4b distributed along the axial direction of the main body 4a, and the inner walls of the forming grooves 4b are arc-shaped. And a second threaded hole is formed in the bending die 4, one end of the second force application rod 2 is in threaded connection with the second threaded hole, and the second force application rod 2 is vertically arranged and is positioned on the lower side of the bending die 4 when the bending die is used.

Both ends of the crank 3 are respectively connected with the bending die 4 and the supporting seat 5 through pins of the crank 3.

The side of the supporting seat 5 close to the bending die 4 is rotatably provided with a roller 6 matched with the bending die 4, specifically, the roller 6 is cylindrical and the axis is parallel to the axis of the main body 4a of the bending die 4. The outer wall of the roller 6 is provided with annular limiting grooves 6a matched with the forming grooves 4b, and the number of the limiting grooves 6a is the same as that of the forming grooves 4b, and the positions of the limiting grooves are in one-to-one correspondence. In the actual product, the rollers 6 are two and distributed along the height direction of the main body 4a of the bending die 4. An inclined mounting surface 5a is formed on the other side of the supporting seat 5, and an included angle between an extension line of the mounting surface 5a and the axis of the crank 3 is an acute angle.

The first force application rod 1 comprises a straight rod body 1a, and one end of the straight rod body 1a is a holding part 1b. The first force application rod 1 further comprises an inclined block 1c which is arranged at the other end of the straight rod body 1a and matched with the supporting surface, an included angle between the inclined block 1c and the straight rod body 1a is an obtuse angle, and the inclined block 1c is attached to the mounting surface 5 a. The middle part of the inclined block 1c is hinged with the supporting seat 5 through a shaft element 7 perpendicular to the mounting surface 5a, a locking structure which enables the inclined block 1c to be locked at two positions of 0 degree and 180 degrees is arranged between the supporting seat 5 and the inclined block 1c, and the limitation of the locking structure on the inclined block 1c can be released by rotating the force application rod I1 through external force.

As shown in figure 1, during the initial state, the inclined block 1c is in 0 degree position, then swing force application rod 1 and drive the supporting seat 5 to rotate and bend the copper pipe through the cooperation of bending die 4 and roller 6, when force application rod 1 swings to be approximately parallel to force application rod two 2, as shown in figure 4, independently rotate force application rod 1 and make the inclined block 1c rotate to 180 degrees position, force application rod 1 is approximately perpendicular to force application rod two 2 at this moment, and lower pendulum force application rod 1 can make the supporting seat 5 continue to swing and bend the copper pipe like this, the whole process not only operates more smoothly, and the application of force is more smooth and uniform, effectively improves the bending quality.

In the present embodiment, it is preferred that,

as shown in fig. 2, the first force application rod 1 is a split structure, an internal threaded tube 1d matching with the straight rod body 1a is integrally formed on the inclined block 1c, and the end of the straight rod body 1a, which is not the grip portion 1b, is screwed into the internal threaded tube 1 d. Therefore, during actual production, the straight rod body 1a and the force application rod 2 can adopt the same component, so that the investment of a processing die or processing equipment is omitted, and the production cost is reduced. Naturally, it is also possible to use the force application rod 1 as an integral structure.

In an actual product, the included angle between the inclined block 1c and the straight rod body 1a is 135 degrees, and naturally, the included angle between the inclined block 1c and the straight rod body 1a can float up and down at 135 degrees.

The locking structure is as follows: as shown in fig. 2 and 3, the mounting surface 5a is provided with mounting holes along the axial direction of the shaft 7, and the mounting holes and the shaft 7 are distributed along the oblique direction of the mounting surface 5 a. The locking structure comprises an elastic plunger 8 fixed in the mounting hole, the elastic plunger 8 comprises a ball head 8a, two positioning holes 1e matched with the ball head 8a are axially formed in the inclined block 1c along the shaft 7, the shaft 7 is located between the two positioning holes 1e, and the ball head 8a can be pressed on the inner walls of the two positioning holes 1e respectively. The resilient plunger 8 is commercially available to facilitate the co-operation of the tilting block 1c and the support base 5. Wherein the type of the positioning hole 1e is a taper hole or a ball hole; the elastic plunger 8 is screwed in the mounting hole, so that the assembly is further facilitated.

The shaft 7 is constructed as follows: the mounting surface 5a is further provided with a first threaded hole along the axial direction of the shaft member 7, the inclined block 1c is correspondingly provided with a through hole, the shaft member 7 is a bolt inserted into the through hole, the rod part of the bolt is screwed in the first threaded hole, and the head part of the bolt is pressed on the inclined block 1 c.

Example two

The structure and principle of the second embodiment are basically the same as those of the first embodiment, and different points are as follows: the locking structure comprises a spring and a steel ball which are arranged in the mounting hole, two spherical surfaces matched with the steel ball are arranged on the inclined block 1c, and one side of the steel ball has a tendency of being respectively pressed on the two spherical surfaces under the action of the spring.

EXAMPLE III

The structure and principle of the third embodiment are basically the same as those of the first embodiment, and different points are as follows: the shaft 7 is a convex column integrally formed on the mounting surface 5a, a connecting hole correspondingly penetrates through the inclined block 1c, the convex column penetrates through the connecting hole and is in threaded connection with a nut, and the nut is pressed on the inclined block 1 c.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A pipe bender comprises a force application rod I (1), a bending die (4) and a supporting seat (5) which are in running fit with each other through a crank (3), wherein the force application rod II (2) is arranged on the bending die (4), a roller (6) matched with the bending die (4) is arranged on one side of the supporting seat (5) in a running fit mode, the force application rod I (1) comprises a straight rod body (1 a), one end of the straight rod body (1 a) is a holding part (1 b), the pipe bender is characterized in that an installing surface (5 a) which is arranged in an inclined mode is formed on the other side of the supporting seat (5), and an included angle formed between an extension line of the installing surface (5 a) and the axis of the crank (3) is an acute angle; the force application rod I (1) further comprises an inclined block (1 c) which is arranged at the other end of the straight rod body (1 a) and matched with the supporting surface, an included angle between the inclined block (1 c) and the straight rod body (1 a) is an obtuse angle, and the inclined block (1 c) is attached to the mounting surface (5 a); the middle part of the inclined block (1 c) is hinged with the supporting seat (5) through a shaft piece (7) vertical to the mounting surface (5 a), a locking structure which enables the inclined block (1 c) to be locked at two positions of 0 degree and 180 degrees is arranged between the supporting seat (5) and the inclined block (1 c), and the limit of the locking structure on the inclined block (1 c) can be released by rotating the first force application rod (1) through external force.

2. The pipe bender according to claim 1, wherein, the mounting surface (5 a) is provided with mounting holes along the axial direction of the shaft member (7), and the mounting holes and the shaft member (7) are distributed along the inclined direction of the mounting surface (5 a); the locking structure comprises an elastic plunger (8) fixed in the mounting hole, the elastic plunger (8) comprises a ball head (8 a), two positioning holes (1 e) matched with the ball head (8 a) are axially formed in the inclined block (1 c) along the shaft piece (7), the shaft piece (7) is located between the two positioning holes (1 e), and the ball head (8 a) can be pressed on the inner walls of the two positioning holes (1 e) respectively.

3. Tubing bender according to claim 2 characterized in that the pilot hole (1 e) is of the type of a conical or spherical hole.

4. Tubing bender according to claim 2 or 3 characterized in that the resilient plungers (8) are threaded in the corresponding mounting holes.

5. The pipe bender according to claim 1, wherein, the mounting surface (5 a) is provided with mounting holes along the axial direction of the shaft member (7), and the mounting holes and the shaft member (7) are distributed along the inclined direction of the mounting surface (5 a); the locking structure comprises a spring and a steel ball which are arranged in the mounting hole, two spherical surfaces matched with the steel ball are arranged on the inclined block (1 c), and one side of the steel ball has a tendency of being respectively pressed on the two spherical surfaces under the action of the spring.

6. The pipe bender according to claim 2, wherein the mounting surface (5 a) is further provided with a first threaded hole along the axial direction of the shaft member (7), the inclined block (1 c) is correspondingly provided with a through hole, the shaft member (7) is a bolt inserted into the through hole, the shaft portion of the bolt is screwed in the first threaded hole, and the head portion of the bolt presses on the inclined block (1 c).

7. The pipe bender according to claim 1, characterized in that the shaft (7) is a convex column integrally formed on the mounting surface (5 a), the inclined block (1 c) is correspondingly provided with a connecting hole, the convex column passes through the connecting hole and is screwed with a nut, and the nut presses on the inclined block (1 c).

8. The pipe bender according to claim 1, wherein a second threaded hole is formed in the bending die (4), and one end of the second force application rod (2) is screwed in the second threaded hole.

9. The tube bender according to claim 8, characterized in that the first force application rod (1) is a split structure, the inclined block (1 c) is integrally formed with an internally threaded tube (1 d) matching with the straight rod body (1 a), and the end of the straight rod body (1 a) other than the holding portion (1 b) is screwed into the internally threaded tube (1 d).