Pipe necking auxiliary device

Abstract

The utility model provides a pipe necking auxiliary device. The pipe necking auxiliary device comprises a rack, the extrusion mechanism is arranged on the rack and provided with two extrusion parts which can move relatively or oppositely in the vertical direction, and an extrusion space used for necking down the pipe is formed between the two extrusion parts; and the auxiliary abutting structure is arranged on the rack and provided with an abutting end used for stretching into the pipe in the extrusion space, and the auxiliary abutting structure abuts against the inner wall of the pipe after the two extrusion parts are oppositely combined. The pipe necking auxiliary device provided by the utility model is provided with the rack; the extrusion mechanism is arranged, and the extrusion space can be formed through the two extrusion parts which can move relatively or oppositely in the vertical direction, so that the end part of the pipe in the extrusion space is necked; and the auxiliary abutting structure is arranged, the pipe can be gradually deformed when the two extrusion parts are oppositely combined through the abutting end, extending into the extrusion space, in the pipe, so that the abutting end abuts against the inner wall of the pipe, and deformation of the necking opening is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe processing, and in particular relates to a pipe shrinking auxiliary device. Background Art

[0002] Pipes are materials used to make pipe fittings. Different pipe fittings require different pipes, and the quality of pipes directly determines the quality of pipe fittings. Pipes are essential materials for construction projects, and commonly used ones include water pipes, drainage pipes, gas pipes, heating pipes, wire conduits, rainwater pipes, etc. Pipes are mainly divided into two types: metal and plastic. Plastic pipes have the advantages of moderate price, heat and corrosion resistance, stable performance, and no scaling.

[0003] In the prior art, during the use and installation of plastic pipes, the pipe length is often not long enough and two pipes are needed to be connected. During this process, the pipe is usually shrinked by heating one end of the plastic pipe, and then the two plastic pipes are connected. However, when the plastic pipe is heated, the shrinking end of the plastic pipe may be deformed, and the shrinking effect is poor, which will affect the stability and firmness of the pipe connection, poor adaptability, and poor practicality. Utility Model Content

[0004] The embodiment of the utility model provides a pipe shrinking auxiliary device, which aims to solve the problems that the shrinking end of the existing shrinking processing is prone to deformation, has poor adaptability and poor practicality.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a pipe shrinking auxiliary device, comprising:

[0006] frame;

[0007] An extrusion mechanism is arranged on the frame and has two extrusion parts that can move relative to or away from each other in a vertical direction, and an extrusion space for shrinking the pipe is formed between the two extrusion parts;

[0008] The auxiliary abutment structure is arranged on the frame and has an abutment end that can extend toward the extrusion space. The abutment end is used to extend into the pipe in the extrusion space and abut against the inner wall of the pipe after the two extrusion parts are matched.

[0009] In a possible implementation, the moving direction of the extrusion mechanism and the abutting end is set as a first direction, and a direction horizontal and perpendicular to the first direction is set as a second direction;

[0010] The extrusion mechanism comprises two extrusion structures spaced apart in the vertical direction, both of which are arranged on the frame, and each of which comprises:

[0011] A movable die having a semicircular cavity, wherein the axis direction of the semicircular cavity is a first direction, and the opening of the semicircular cavity in the movable die faces the other movable die;

[0012] Two connecting blocks are provided, and the two connecting blocks are arranged at intervals on both sides of the movable die along the second direction and are integrally connected with the movable die;

[0013] There are two telescopic units, and the two telescopic units are arranged in one-to-one correspondence with the two connecting blocks, and are used to drive the two connecting blocks to move in the vertical direction;

[0014] a temperature control unit, electrically connected to the mobile die, for controlling the temperature of the mobile die;

[0015] Wherein, the two semicircular cavities together enclose the extrusion space.

[0016] In a possible implementation, the movable die is a semicircular ring structure, and the semicircular cavity is an inner ring side wall of the semicircular ring structure.

[0017] In a possible implementation, the telescopic unit is a cylinder.

[0018] In a possible implementation, the auxiliary abutment structure includes:

[0019] A sliding seat, slidably disposed on the frame along the first direction;

[0020] A connecting shaft, the axis direction of which is coaxially arranged with the extrusion space, one end of the connecting shaft is fixedly arranged on the sliding seat, and the other end extends toward the extrusion space along the first direction, and a limiting shoulder is provided on the extended end of the connecting shaft;

[0021] An abutment sleeve, which is sleeved on the connecting shaft and abuts against the limiting shaft shoulder;

[0022] A fixed cover plate, arranged on the protruding end of the connecting shaft, and used for fixing the position of the abutting sleeve;

[0023] Wherein, the frame is provided with a slide rail for the slide seat to slide.

[0024] In a possible implementation manner, the fixed cover plate is detachably connected to the connecting shaft.

[0025] In a possible implementation, each of the extrusion structures further includes a replacement unit, and the replacement unit includes:

[0026] A replacement module is arranged in the extrusion space, and a threaded hole is provided on the replacement module;

[0027] A connecting bolt, one end of which is threadedly connected to the replacement module and the other end of which abuts against the outer circumferential surface of the movable die, for fixing the replacement module in the extrusion space;

[0028] Wherein, the movable die is provided with a connecting groove for the connecting bolts to pass through.

[0029] In a possible implementation, the replacement module is a semicircular ring structure, and the replacement module has a connecting arc surface adapted to the semicircular cavity, and a processing arc surface for processing the pipe, and the processing arc surface is the extrusion part.

[0030] In this implementation, compared with the prior art, a frame is provided; an extrusion mechanism is provided on the frame, and an extrusion space can be formed by two extrusion parts that can move relative to or away from each other in the vertical direction to shrink the end of the pipe in the extrusion space; an auxiliary abutment structure is provided on the frame, and the abutment end in the pipe in the extrusion space can be extended to the abutment end when the two extrusion parts are matched, so that the pipe is gradually deformed, so that the abutment end abuts against the inner wall of the pipe, thereby avoiding deformation of the shrinkage, and having good adaptability and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the side structure of a pipe shrinking auxiliary device provided in an embodiment of the utility model;

[0032] Figure 2 A schematic diagram of the front view of the pipe shrinking auxiliary device provided in an embodiment of the utility model;

[0033] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the main structural diagram of the provided pipe shrinking auxiliary device;

[0034] Description of reference numerals:

[0035] 100, frame; 110, slide rail; 200, extrusion mechanism; 201, extrusion space; 210, extrusion structure; 211, movable die; 2111, connecting groove; 212, connecting block; 213, telescopic unit; 214, temperature control unit; 215, replacement unit; 2151, replacement module; 2152, connecting bolt; 300, auxiliary abutment structure; 310, sliding seat; 320, connecting shaft; 321, limiting shoulder; 330, abutment sleeve; 340, fixed cover plate. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] Please also read Figures 1 to 3 , the pipe shrinking auxiliary device provided by the utility model is now described. The pipe shrinking auxiliary device includes a frame 100, an extrusion mechanism 200 and an auxiliary abutment structure 300. The extrusion mechanism 200 is arranged on the frame 100, and has two extrusion parts that can move relative to or away from each other in the vertical direction, and an extrusion space 201 for shrinking the pipe is formed between the two extrusion parts. The auxiliary abutment structure 300 is arranged on the frame 100, and has an abutment end that can extend toward the extrusion space 201, and the abutment end is used to extend into the pipe in the extrusion space 201, and abuts against the inner wall of the pipe after the two extrusion parts are matched.

[0038] Compared with the prior art, the pipe shrinking auxiliary device provided in this embodiment is provided with a frame 100. An extrusion mechanism 200 is provided on the frame 100, and an extrusion space 201 can be formed by two extrusion parts that can move relative to or away from each other in the vertical direction, so as to shrink the end of the pipe in the extrusion space 201. An auxiliary abutment structure 300 is provided on the frame 100, and the abutment end in the pipe extending into the extrusion space 201 can gradually deform the pipe when the two extrusion parts are matched, so that the abutment end abuts against the inner wall of the pipe to avoid deformation of the shrinking, and the adaptability and practicality are good.

[0039] In some embodiments, the extrusion mechanism 200 may be configured as follows: Figures 1 to 3 See the structure shown. Figures 1 to 3 , the moving direction of the extrusion mechanism 200 and the abutting end is set as a first direction, and the vertical direction horizontal to the first direction is set as a second direction.

[0040] The extrusion mechanism 200 includes two extrusion structures 210 arranged at intervals along the vertical direction. Both of the extrusion structures 210 are arranged on the frame 100. Each of the extrusion structures 210 includes: a mobile die 211, a connecting block 212, a telescopic unit 213 and a temperature control unit 214. The mobile die 211 has a semicircular cavity, the axis direction of the semicircular cavity is the first direction, and the opening of the semicircular cavity in the mobile die 211 faces the other mobile die 211. There are two connecting blocks 212, and the two connecting blocks 212 are arranged at intervals along the second direction on both sides of the mobile die 211 and are integrally connected to the mobile die 211. There are two telescopic units 213, and the two telescopic units 213 are arranged one-to-one with the two connecting blocks 212, so as to drive the two connecting blocks 212 to move in the vertical direction. The temperature control unit 214 is electrically connected to the mobile die 211 to control the temperature of the mobile die 211.

[0041] The two semicircular cavities together enclose the extrusion space 201 .

[0042] The movable die 211 can be surrounded by another movable die 211 by setting a semicircular cavity thereon to form the extrusion space 201. The semicircular cavity can be understood as half of the cylinder cavity. The connecting block 212 can be connected to the telescopic end of the telescopic unit 213, and drive the movable die 211 to move in the vertical direction under the drive of the telescopic unit 213. The integral connection between the connecting block 212 and the movable die 211 can be understood as the connecting block 212 and the movable die 211 are integrally cast or welded. The temperature control unit 214 can ensure that when the pipe in the extrusion space 201 is shrunk, the temperature of the two movable dies 211 is increased to shrink the pipe in the extrusion space 201.

[0043] In some embodiments, the movable die 211 may be used as follows: Figure 1 See the structure shown. Figure 1 The movable die 211 is a semicircular ring structure, and the semicircular cavity is the inner ring side wall of the semicircular ring structure.

[0044] In some embodiments, the telescopic unit 213 may be implemented as follows: Figures 1 to 3 See the structure shown. Figures 1 to 3 , the telescopic unit 213 is a cylinder.

[0045] The cylinder refers to a cylindrical metal part that guides the piston to perform linear reciprocating motion in the cylinder. The air in the engine cylinder converts heat energy into mechanical energy by expansion. The cylinder is a prior art and will not be described in detail here.

[0046] In some embodiments, the auxiliary abutment structure 300 may be formed as follows: Figure 2 , Figure 3 See the structure shown. Figure 2 , Figure 3 The auxiliary abutment structure 300 includes: a sliding seat 310, a connecting shaft 320, an abutment sleeve 330 and a fixed cover plate 340. The sliding seat 310 is slidably arranged on the frame 100 along the first direction. The axial direction of the connecting shaft 320 is coaxially arranged with the extrusion space 201. One end of the connecting shaft 320 is fixed on the sliding seat 310, and the other end extends toward the extrusion space 201 along the first direction. A limiting shoulder 321 is provided on the extended end of the connecting shaft 320. The abutment sleeve 330 is sleeved on the connecting shaft 320 and abuts on the limiting shoulder 321. The fixed cover plate 340 is arranged on the extended end of the connecting shaft 320, and is used to fix the position of the abutment sleeve 330.

[0047] The frame 100 is provided with a slide rail 110 for the slide seat 310 to slide.

[0048] The sliding seat 310 can be slidably disposed in the slide rail 110 of the frame 100, and the sliding of the sliding seat 310 can drive the abutment sleeve 330 on the connecting shaft 320 to extend into the extrusion space 201. The fixed cover plate 340 can fix the position of the abutment sleeve 330.

[0049] In some embodiments, the fixed cover plate 340 may be formed as follows: Figure 2 , Figure 3 See the structure shown. Figure 2 , Figure 3 The fixed cover plate 340 is detachably connected to the connecting shaft 320 .

[0050] The fixed cover plate 340 is detachably connected to the connecting shaft 320. When the inner diameter of the pipe to be shrunken is required, the fixed cover plate 340 can be disassembled and the abutment sleeve 330 can be replaced. The detachable connection can be a threaded connection or a bolt connection.

[0051] In some embodiments, the extrusion structure 210 may be formed as follows: Figures 1 to 3 See the structure shown. Figures 1 to 3Each of the extrusion structures 210 further includes a replacement unit 215, and the replacement unit 215 includes: a replacement module 2151 and a connecting bolt 2152. The replacement module 2151 is arranged in the extrusion space 201, and a threaded hole is provided on the replacement module 2151. The connecting bolt 2152 has one end threadedly connected to the replacement module 2151, and the other end abuts against the outer circumferential surface of the movable die 211, so as to fix the replacement module 2151 in the extrusion space 201.

[0052] The movable die 211 is provided with a connecting groove 2111 for the connecting bolt 2152 to pass through.

[0053] The replacement module 2151 can be fixed in the extrusion space 201 by a connecting bolt 2152, the nut of the connecting bolt 2152 abuts against the outer surface of the movable die 211, and the screw of the connecting bolt 2152 passes through the connecting groove 2111 on the movable die 211 and is connected to the threaded hole of the replacement module 2151.

[0054] In some embodiments, the replacement module 2151 may be implemented as follows: Figure 1 See the structure shown. Figure 1 The replacement module 2151 is a semicircular ring structure, and the replacement module 2151 has a connecting arc surface adapted to the semicircular cavity, and a processing arc surface for processing the pipe, and the processing arc surface is the extrusion part.

[0055] The connecting arc surface can be adapted to abut against the semicircular cavity, and the processed arc surface can shrink the outer wall of the pipe.

[0056] It should be noted that the shrinkage size of the pipe is relatively small, and the size of the extrusion space 201 is slightly smaller than the outer diameter of the pipe. When the two extrusion parts are buckled together, the outer wall of the pipe will not be extruded and deformed.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The pipe shrinking auxiliary device is characterized by: include: frame; An extrusion mechanism is arranged on the frame and has two extrusion parts that can move relative to or away from each other in a vertical direction, and an extrusion space for shrinking the pipe is formed between the two extrusion parts; The auxiliary abutment structure is arranged on the frame and has an abutment end that can extend toward the extrusion space. The abutment end is used to extend into the pipe in the extrusion space and abut against the inner wall of the pipe after the two extrusion parts are matched.

2. The pipe necking auxiliary device according to claim 1, characterized in that: The moving direction of the extrusion mechanism and the abutting end is set as a first direction, and a direction horizontal and perpendicular to the first direction is set as a second direction; The extrusion mechanism comprises two extrusion structures spaced apart in the vertical direction, both of which are arranged on the frame, and each of which comprises: A movable die having a semicircular cavity, wherein the axis direction of the semicircular cavity is a first direction, and the opening of the semicircular cavity in the movable die faces the other movable die; Two connecting blocks are provided, and the two connecting blocks are arranged at intervals on both sides of the movable die along the second direction and are integrally connected with the movable die; There are two telescopic units, and the two telescopic units are arranged in one-to-one correspondence with the two connecting blocks, and are used to drive the two connecting blocks to move in the vertical direction; a temperature control unit, electrically connected to the mobile die, for controlling the temperature of the mobile die; Wherein, the two semicircular cavities together enclose the extrusion space.

3. The pipe necking auxiliary device according to claim 2, characterized in that: The movable die is a semicircular ring structure, and the semicircular cavity is the inner ring side wall of the semicircular ring structure.

4. The pipe necking auxiliary device according to claim 2, characterized in that: The telescopic unit is a cylinder.

5. The pipe necking auxiliary device according to claim 2, characterized in that: The auxiliary abutment structure comprises: A sliding seat, slidably disposed on the frame along the first direction; A connecting shaft, the axis direction of which is coaxially arranged with the extrusion space, one end of the connecting shaft is fixedly arranged on the sliding seat, and the other end extends toward the extrusion space along the first direction, and a limiting shoulder is provided on the extended end of the connecting shaft; An abutment sleeve, which is sleeved on the connecting shaft and abuts against the limiting shaft shoulder; A fixed cover plate, arranged on the protruding end of the connecting shaft, and used for fixing the position of the abutting sleeve; Wherein, the frame is provided with a slide rail for the slide seat to slide.

6. The pipe necking auxiliary device according to claim 5, characterized in that: The fixed cover plate is detachably connected to the connecting shaft.

7. The pipe necking auxiliary device according to claim 3, characterized in that: Each of the extrusion structures further comprises a replacement unit, wherein the replacement unit comprises: A replacement module is arranged in the extrusion space, and a threaded hole is provided on the replacement module; A connecting bolt, one end of which is threadedly connected to the replacement module and the other end of which abuts against the outer circumferential surface of the movable die, for fixing the replacement module in the extrusion space; Wherein, the movable die is provided with a connecting groove for the connecting bolts to pass through.

8. The pipe necking auxiliary device according to claim 7, characterized in that: The replacement module is a semicircular ring structure, and has a connecting arc surface adapted to the semicircular cavity, and a processing arc surface for processing the pipe, and the processing arc surface is the extrusion part.

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