Reducing pipeline necking device convenient to position

Abstract

The utility model relates to the technical field of pipeline necking, in particular to a reducing pipeline necking device convenient to position, which comprises a workbench, the top of the workbench is fixedly connected with a U-shaped block, a first fixing plate, a sliding rail and a second fixing plate respectively, the top of the U-shaped block is fixedly connected with a fixing frame, and the bottom of the fixing frame is fixedly connected with a first air pump. The output end of the first air pump is fixedly connected with a fixed cylinder, the bottom of the fixed cylinder is fixedly connected with an upper mold, the bottom of the upper mold is fixedly connected with an upper pad, the exterior of the U-shaped block is fixedly connected with a lower mold, the top of the lower mold is fixedly connected with a lower pad, and the exterior of the U-shaped block is fixedly connected with a first connecting column; the first connecting column penetrates through the upper die and the lower die and is slidably connected with the upper die. The output end of the first air pump is started to be fixedly connected with the fixing cylinder, power is provided for the fixing cylinder to enable the fixing cylinder to ascend and descend, the bottom of the fixing cylinder is connected with the upper die, the upper die ascends and descends when the fixing cylinder ascends and descends, the upper die is close to the lower die and abuts against the lower die, and the steel pipe is firmly fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline shrinkage, in particular to a diameter-changing pipeline shrinkage device which is easy to position. Background Art

[0002] A pipe shrinking device is a device used to change the diameter of a pipe, mainly by reducing a part of the pipe to a predetermined size. This device is usually used for pipe connection and adaptation to ensure that pipes of different sizes can be tightly connected. It gradually reduces one end of the pipe through physical compression or mechanical operation to facilitate installation and connection.

[0003] Existing technologies, such as; CN218903376U, a hydraulic device for realizing pipe shrinking, includes a hydraulic power mechanism, a bracket and a shrinking mold, the hydraulic power mechanism is provided with a hydraulic station and an executing hydraulic cylinder, the executing hydraulic cylinder is installed in the bracket, the executing hydraulic cylinder is connected to the hydraulic station, and the hydraulic station controls the lifting and lowering of the executing hydraulic pressure; the shrinking mold includes an upper mold and a lower mold, the upper mold is installed at the bottom of the bracket, the lower mold is installed on the executing hydraulic cylinder, the lower mold is arranged opposite to the upper mold, and the executing hydraulic cylinder is used to control the rise of the lower mold and the upper mold to tighten the shrinking pipe mouth; the utility model clamps the pipe and shrinks it through a hydraulic device in conjunction with a detachable mold, and can shrink the pipe quickly when mass-producing guardrails and other pipes that need to be shrunken to improve work efficiency, reduce labor intensity, and avoid safety hazards of using hammers; the molds are all detachable, which is convenient for pipes of different calibers and different shrinking models, and has a wider range of applications.

[0004] However, the above and other typical existing technologies still have certain problems when used; in this mechanism that controls the mold to tighten the shrinking pipe mouth by rising the hydraulic cylinder, due to the lack of positioning structure and clamping structure, the staff has to hold the pipe to perform the shrinking work. The lack of positioning structure makes it difficult to accurately fix the position of the pipe during the shrinking process, which may cause deviations in the shrinking size and shape, affecting product quality. Asking the staff to hold the pipe not only increases the labor intensity, but also poses a safety hazard, and may cause harm to the staff due to improper operation. Utility Model Content

[0005] The utility model aims to provide a reducing pipe necking device which is easy to position, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A device for shrinking a variable-diameter pipe that is easy to position, comprises a workbench, the top of the workbench is respectively fixedly connected with a U-shaped block, a first fixed plate, a slide rail, and a second fixed plate, the top of the U-shaped block is fixedly connected with a fixed frame, the bottom of the fixed frame is fixedly connected with a first air pump, the output end of the first air pump is fixedly connected with a fixed cylinder, the bottom of the fixed cylinder is fixedly connected with an upper mold, the bottom of the upper mold is fixedly connected with an upper pad, the outside of the U-shaped block is fixedly connected with a lower mold, the top of the lower mold is fixedly connected with a lower pad, the outside of the U-shaped block is fixedly connected with a first connecting column, the first connecting column passes through the upper mold and the lower mold and is slidably connected to the upper mold.

[0008] As a preferred solution of the utility model, the outside of the first fixed plate is fixedly connected to an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected to a connecting block, the inside of the connecting block is fixedly connected to a second air pump, the output end of the second air pump is fixedly connected to a second connecting column, the outside of the second connecting column is provided with a sliding groove, and the outside of the sliding groove is slidably connected to a slider.

[0009] As a preferred solution of the utility model, a heating cylinder is fixedly connected to the outside of the connecting block, and a heating wire is fixedly connected to the inside of the heating cylinder.

[0010] As a preferred solution of the utility model, a connecting plate is fixedly connected to the bottom of the connecting block, and the connecting plate is slidably connected to the slide rail.

[0011] As a preferred solution of the utility model, a control panel is fixedly connected to the outside of the U-shaped block, and the control panel is electrically connected to the first air pump, the second air pump, the heating wire, and the electric telescopic rod respectively.

[0012] As a preferred solution of the utility model, the outer part of the upper pad is slidably connected with a steel pipe, and the upper pad is abutted against the lower pad.

[0013] As a preferred solution of the utility model, a fixing block is fixedly connected to the top of the second fixing plate, and one end of the steel pipe abuts against the fixing block.

[0014] As a preferred solution of the utility model, the bottom of the workbench is fixedly connected to table legs, and the bottom of the table legs is fixedly connected to anti-slip pads.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, by starting the first air pump, the output end is fixedly connected to the fixed cylinder, thereby providing sufficient power support for the fixed cylinder, so that it can smoothly perform lifting and lowering movements. At the bottom of the fixed cylinder, the upper mold is fixedly connected. When the fixed cylinder starts to perform the lifting action, the upper mold will also be lifted and lowered following the movement of the fixed cylinder. During this process, the upper mold will gradually approach the lower mold, and finally the two will abut against each other, and the clamping force will tightly fix the steel pipe.

[0017] 2. In the utility model, the electric telescopic rod is fixedly connected to the outside of the first fixed plate. When the electric telescopic rod is started, the output end will forcefully push the connecting block connected thereto. The bottom of the connecting block is fixedly connected to the connecting plate, and the connecting plate is slidably connected to the slide rail, so that when the electric telescopic rod is in effect, the connecting block can smoothly achieve a smooth translational movement along the slide rail. This translational movement has extremely high precision and controllability, so that the expected positioning effect can be achieved more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 3 This is a schematic diagram of the internal structure of the connection block of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the second connecting column of the utility model;

[0022] In the figure: 1. workbench; 2. U-shaped block; 3. fixed frame; 4. first air pump; 5. fixed cylinder; 6. upper mold; 7. upper pad; 8. lower mold; 9. lower pad; 10. first connecting column; 11. connecting block; 12. second air pump; 13. second connecting column; 14. slide groove; 15. slider; 16. heating cylinder; 17. heating wire; 18. connecting plate; 19. first fixed plate; 20. electric telescopic rod; 21. slide rail; 22. control panel; 23. second fixed plate; 24. fixed block; 25. steel pipe; 26. table leg; 27. anti-slip pad. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] A reducing pipe necking device that is easy to position comprises a workbench 1, the top of the workbench 1 is respectively fixedly connected with a U-shaped block 2, a first fixed plate 19, a slide rail 21, and a second fixed plate 23, the top of the U-shaped block 2 is fixedly connected with a fixing frame 3, the bottom of the fixing frame 3 is fixedly connected with a first air pump 4, the output end of the first air pump 4 is fixedly connected with a fixing cylinder 5, the bottom of the fixing cylinder 5 is fixedly connected with an upper mold 6, the bottom of the upper mold 6 is fixedly connected with an upper pad 7, the outside of the U-shaped block 2 is fixedly connected with a lower mold 8, the top of the lower mold 8 is fixedly connected with a lower pad 9, the outside of the U-shaped block 2 is fixedly connected with a first connecting column 10, the first connecting column 10 penetrates the upper mold 6 and the lower mold 8 and is slidably connected to the upper mold 6, the outside of the U-shaped block 2 is fixedly connected with a control panel 22, and the control panel 22 is respectively electrically connected with the first air pump 4, the second air pump 12, the heating wire 17, and the electric telescopic rod 20.

[0026] Among them, by starting the first air pump 4, its output end is firmly connected to the fixed cylinder 5, providing strong power support for the fixed cylinder 5 to ensure that it can smoothly perform lifting and lowering movements. At the bottom of the fixed cylinder 5, the upper mold 6 is firmly connected. When the fixed cylinder 5 starts to perform the lifting operation, the upper mold 6 will rise and fall accordingly, and the upper mold 6 will gradually approach the lower mold 8. Finally, the two fit each other and firmly fix the steel pipe 25 with a tight clamping force.

[0027] In this embodiment, Figure 1-4 As shown, the outside of the first fixed plate 19 is fixedly connected with an electric telescopic rod 20, the output end of the electric telescopic rod 20 is fixedly connected with a connecting block 11, the inside of the connecting block 11 is fixedly connected with a second air pump 12, the output end of the second air pump 12 is fixedly connected with a second connecting column 13, the outside of the second connecting column 13 is provided with a slide groove 14, the outside of the slide groove 14 is slidably connected with a slider 15, the outside of the connecting block 11 is fixedly connected with a heating cylinder 16, the inside of the heating cylinder 16 is fixedly connected with a heating wire 17, the bottom of the connecting block 11 is fixedly connected with a connecting plate 18, the connecting plate 18 is slidably connected to the slide rail 21, the outside of the upper pad 7 is slidably connected with a steel pipe 25, the upper pad 7 is abutted against the lower pad 9, the top of the second fixed plate 23 is fixedly connected with a fixed block 24, one end of the steel pipe 25 is abutted against the fixed block 24, the bottom of the workbench 1 is fixedly connected with a table leg 26, and the bottom of the table leg 26 is fixedly connected with an anti-slip pad 27.

[0028] Among them, the electric telescopic rod 20 is fixedly connected to the outside of the first fixed plate 19. When the electric telescopic rod 20 is started, it pushes the connecting block 11 connected thereto, and the bottom of the connecting block 11 is fixedly connected to the connecting plate 18, and the connecting plate 18 is slidably connected to the slide rail 21. When the electric telescopic rod 20 works, it can smoothly cause the connecting block 11 to move smoothly and accurately along the slide rail 21, thereby being able to more accurately achieve the expected positioning effect.

[0029] The working process of the utility model is as follows: when the shrinking work needs to be carried out, the steel pipe 25 is first placed in the lower mold 8, and then the first air pump 4 is started to drive the fixed cylinder 5 to move up and down. Since the bottom of the fixed cylinder 5 is fixedly connected to the upper mold 6, and the upper mold 6 and the lower mold 8 are against each other, the steel pipe 25 is clamped. Then the electric telescopic rod 20 is started to make the connecting plate 18 fixedly connected to the bottom of the connecting block 11 slide along the slide rail 21 fixed on the surface of the workbench 1, thereby realizing the horizontal movement of the connecting block 11. The outside of the connecting block 11 is fixedly connected to the heating cylinder 1 6. When the connecting block 11 drives the heating cylinder 16 to move to one end of the steel pipe 25, the heating wire 17 and the second air pump 12 are powered on through the control panel 22. The output end of the second air pump 12 is fixedly connected to the second connecting column 13. A slide groove 14 is provided on the outside of the second connecting column 13. The slide groove 14 is slidably connected to the slider 15. When the second air pump 12 is working, it will be set to reciprocating motion through the control panel 22. When the second connecting column 13 moves, it will squeeze the slider 15 to move repeatedly in the slide groove 14, thereby shrinking the steel pipe 25, achieving an excellent positioning effect.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for reducing the diameter of a pipe and reducing the diameter of the pipe, which is convenient for positioning, comprises a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a U-shaped block (2), a first fixed plate (19), a slide rail (21), and a second fixed plate (23), respectively; the top of the U-shaped block (2) is fixedly connected to a fixed frame (3); the bottom of the fixed frame (3) is fixedly connected to a first air pump (4); the output end of the first air pump (4) is fixedly connected to a fixed cylinder (5); the bottom of the fixed cylinder (5) is fixedly connected to an upper mold (6); the bottom of the upper mold (6) is fixedly connected to an upper pad (7); the outside of the U-shaped block (2) is fixedly connected to a lower mold (8); the top of the lower mold (8) is fixedly connected to a lower pad (9); the outside of the U-shaped block (2) is fixedly connected to a first connecting column (10); the first connecting column (10) passes through the upper mold (6) and the lower mold (8) and is slidably connected to the upper mold (6).

2. The device for reducing the diameter of a pipe and making it easy to position according to claim 1, characterized in that: The outside of the first fixing plate (19) is fixedly connected to an electric telescopic rod (20), the output end of the electric telescopic rod (20) is fixedly connected to a connecting block (11), the inside of the connecting block (11) is fixedly connected to a second air pump (12), the output end of the second air pump (12) is fixedly connected to a second connecting column (13), the outside of the second connecting column (13) is provided with a sliding groove (14), and the outside of the sliding groove (14) is slidably connected to a sliding block (15).

3. The device for reducing the diameter of a pipe and making it easy to position according to claim 2, characterized in that: The outside of the connection block (11) is fixedly connected to a heating cylinder (16), and the inside of the heating cylinder (16) is fixedly connected to a heating wire (17).

4. The device for reducing the diameter of a pipe and reducing the diameter of the pipe for facilitating positioning according to claim 2 is characterized in that: A connecting plate (18) is fixedly connected to the bottom of the connecting block (11), and the connecting plate (18) is slidably connected to the slide rail (21).

5. The device for reducing the diameter of a pipe and reducing the diameter of the pipe for facilitating positioning according to claim 1 is characterized in that: A control panel (22) is fixedly connected to the outside of the U-shaped block (2), and the control panel (22) is electrically connected to the first air pump (4), the second air pump (12), the heating wire (17), and the electric telescopic rod (20), respectively.

6. The device for reducing the diameter of a pipe and making it easy to position according to claim 1, characterized in that: The outer portion of the upper pad (7) is slidably connected to a steel pipe (25), and the upper pad (7) abuts against the lower pad (9).

7. The device for reducing the diameter of a pipe and reducing the diameter of the pipe for facilitating positioning according to claim 6, characterized in that: A fixing block (24) is fixedly connected to the top of the second fixing plate (23), and one end of the steel pipe (25) abuts against the fixing block (24).

8. The device for reducing the diameter of a pipe and reducing the diameter of the pipe for facilitating positioning according to claim 1 is characterized in that: The bottom of the workbench (1) is fixedly connected to a table leg (26), and the bottom of the table leg (26) is fixedly connected to an anti-slip pad (27).

Images