Expansion positioning device for cold contraction pipe
By designing a cold shrink tube expansion positioning device and using a table, a fixed seat and a pressure block structure to stabilize the support tube, the problem of the support tube shaking during the expansion process of the cold shrink tube is solved, and a more stable and efficient expansion effect is achieved.
Patent Information
- Application Number
- CN202422670757.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-04
AI Technical Summary
During the expansion process of the cold shrink tube, it is difficult for the support tube to remain stable, resulting in unstable expansion.
A cold shrink tube expansion and positioning device is designed, which includes a table, a fixing seat, a linear drive device, an expansion device and a pressing block structure. The expansion device is driven by the linear drive device to be inserted into the cold shrink tube, and the pressing block is used to clamp the support tube to ensure that it does not shake during the expansion process.
The stability of the support tube during the expansion process of the cold shrink tube is achieved, and the expansion efficiency and reliability are improved.
Smart Images
Figure CN223326940U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cold shrink tubes, in particular to a cold shrink tube expansion and positioning device. Background Art
[0002] Cold-shrink tubing is factory-vulcanized and injection-molded from an elastomeric material, then expanded and lined with a plastic spiral support tube to form various cable accessories. During on-site installation, these pre-expanded pieces are placed over the treated cable ends or connectors, and the internal support plastic spiral strips are pulled out and pressed against the cable insulation. During the expansion process, support tubes are added to expand the tubing to the desired diameter. However, during this process, the support tubes are squeezed and pulled by the tubing, making them unstable. Utility Model Content
[0003] In view of the above-mentioned technical problems, the purpose of the present invention is to provide a cold shrink tube expansion and positioning device to facilitate stable support of the tube during the expansion process.
[0004] To achieve the above objectives, the present invention provides the following technical solutions:
[0005] A cold shrink tube expansion and positioning device, comprising a table, a fixed seat is provided on the table, an opening is provided on the fixed seat, and a flexible auxiliary sleeve is provided around the opening; a linear drive device is provided on one side of the fixed seat, the linear drive device comprises a guide rail connected to the table and a slider slidably connected to the guide rail, a mounting seat is provided on the slider, an expansion device coaxial with the opening is provided on the mounting seat, and the expansion device is driven by the linear drive device to pass through the opening to insert the auxiliary sleeve or withdraw from the opening away from the fixed seat; a sliding seat slidably connected to the table is provided at the other end of the fixed seat, and mounting sleeves coaxial with the opening are provided at intervals on the sliding seat. The wall and the mounting shaft, a rotating rod parallel to the axial center line of the opening is provided between the mounting wall and the mounting shaft, the mounting wall is annular, and at least two pressure blocks are provided around the mounting wall, a first mounting hole and a second mounting hole are provided at intervals on the pressure block, the pressure block is rotatably connected to the mounting wall through the first mounting hole, one end of the rotating rod is inserted into the second mounting hole, an external thread is provided on the mounting shaft, a screw part is spirally connected to the mounting shaft, and a connecting rod corresponding to the number of pressure blocks is provided at one end of the screw part close to the mounting wall, one end of the connecting rod is rotatably connected to the screw part, and the other end is rotatably connected to the rotating rod, and when the screw part is rotated, the pressure blocks are synchronously retracted or opened.
[0006] Preferably, the expansion device comprises an expansion cylinder, a through hole is provided along the axis of the expansion cylinder, and a conical expansion head is provided at one end of the expansion cylinder close to the fixing seat.
[0007] Preferably, the elevator operation status information includes a fault signal, an operation signal and an elevator signal.
[0008] Preferably, an air inlet is provided at one end of the expansion cylinder close to the mounting seat, and a plurality of air outlets connected to the air inlet are evenly spaced on the surface of the expansion cylinder.
[0009] Preferably, the inner side surface of the pressing block is an outwardly convex arc surface.
[0010] Preferably, the inner side surface of the pressing block is provided with anti-slip grooves.
[0011] Preferably, a shell is provided on the sliding seat, and the pressing block, the rotating rod and the connecting rod are accommodated in the shell.
[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0013] The utility model discloses a cold shrink tube expansion and positioning device including a table top, a fixed seat is arranged on the table top, a linear drive device is arranged on one side of the fixed seat, and the expansion device is driven by the linear drive device to pass through the opening to insert the auxiliary sleeve or withdraw from the opening away from the fixed seat, and a sliding seat is arranged at the other end of the fixed seat, and a mounting wall and a mounting shaft coaxial with the opening are arranged on the sliding seat, and a rotating rod parallel to the axial center line of the opening is arranged between the mounting wall and the mounting shaft, the mounting wall is annular, and at least two pressure blocks are arranged around the mounting wall, an external thread is arranged on the mounting shaft, and a screw is spirally connected to the mounting shaft. When the screw is rotated, the pressure blocks are synchronously retracted or opened, which is suitable for clamping support tubes of different diameters. During the expansion process of the cold shrink tube, the support tube will be squeezed and pulled by the cold shrink tube and cannot remain stable. The pressure blocks clamp the support tube to prevent it from shaking, so that the expansion process is smoother and more reliable, and the expansion efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The technical solution of the utility model is further described below with reference to the accompanying drawings:
[0015] Attachment Figure 1 This is a three-dimensional diagram of the cold shrink tube expansion and positioning device of the utility model;
[0016] Attachment Figure 2 This is a three-dimensional diagram of the cold shrink tube expansion and positioning device of the utility model;
[0017] Attachment Figure 3 This is a three-dimensional diagram of the cold shrink tube expansion and positioning device of the utility model;
[0018] Attachment Figure 4 For attachment Figure 3 A local enlarged view of point A;
[0019] Attachment Figure 5It is a three-dimensional diagram of a part of the structure of the cold shrink tube expansion and positioning device of the utility model;
[0020] Attachment Figure 6 It is a three-dimensional diagram of a part of the structure of the cold shrink tube expansion and positioning device of the utility model;
[0021] Attachment Figure 7 This is a schematic diagram of the expansion device of the cold shrink tube expansion and positioning device of the present invention.
[0022] Among them: 1. table; 2. fixing seat; 21. opening; 3. linear drive device; 4. mounting seat; 5. expansion device; 51. expansion cylinder; 52. through hole; 53. air inlet; 54. air outlet; 55. expansion head; 6. sliding seat; 7. mounting wall; 8. mounting shaft; 9. rotating rod; 10. pressure block; 101. first mounting hole; 11. screw member; 12. connecting rod; 13. shell; 14. shrink tube; 15. support tube; 16. auxiliary sleeve. DETAILED DESCRIPTION
[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.
[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0025] As attached Figure 1 The figure shows the expansion and positioning device of the cold shrink tube of the present invention, which includes a table top 1, on which a fixing seat 2 is installed. The fixing seat 2 has a circular opening 21, and a flexible auxiliary sleeve 16 is connected around the opening 21. The auxiliary sleeve 16 is used to penetrate the cold shrink tube 14 to be expanded so that the subsequent expansion device 5 can be inserted for expansion.
[0026] A linear drive device 3 is installed on one side of the fixed seat 2. The linear drive device 3 includes a guide rail fixedly connected to the table 1 and a slider slidably connected to the guide rail. The slider is connected to a mounting seat 4. An expansion device 5 coaxial with the opening 21 is installed on the mounting seat 4. Figure 2 As shown, the expansion device 5 is driven by the linear drive device 3 to move through the opening 21 and into the auxiliary sleeve 16 or out of the opening 21 and away from the fixing seat 2 .
[0027] The other end of the fixed seat 2 is provided with a sliding seat 6 which is slidably connected to the table 1. The sliding seat 6 is provided with a mounting wall 7 and a mounting shaft 8 which are coaxial with the opening 21. The moving direction of the sliding seat 6 is perpendicular to the moving direction of the expansion device 5. Figure 5 , Attachment Figure 6 As shown, a rotating rod 9 parallel to the axis of the opening 21 is provided between the mounting wall 7 and the mounting shaft 8. The mounting wall 7 is annular, and at least two pressure blocks 10 are connected around the mounting wall 7. In this embodiment, there are three pressure blocks 10, which are evenly connected around the mounting wall 7 to make the force more balanced and stable. The pressure blocks 10 are machined with first mounting holes 101 and second mounting holes at intervals. The pressure blocks 10 are rotatably connected to the mounting wall 7 through the first mounting holes 101. One end of the rotating rod 9 is inserted into the second mounting hole and movably connected to the second mounting hole. The mounting shaft 8 is machined with external threads, and a screw member 11 is spirally connected to the mounting shaft 8. The end of the screw member 11 near the mounting wall 7 is equipped with connecting rods 12 corresponding to the number of pressure blocks 10. One end of the connecting rod 12 is rotatably connected to the screw member 11, and the other end is rotatably connected to the rotating rod 9. When the screw member 11 is rotated, the pressure blocks 10 are synchronously retracted or opened to clamp the support tube 15. When the screw member 11 is rotated, the connecting rod 12 rotates and drives the rotating rod 9, and the rotating rod 9 drives the pressing block 10 to swing around the first mounting hole 101. Figure 5 The pressing block 10 is shown in a folded state. Figure 6 The pressure block 10 is shown in an open state. According to the different rotation angles of the screw 11, the pressure block 10 is retracted to different positions, making it suitable for clamping support tubes 15 of different diameters. In this embodiment, the inner side surface of the pressure block 10 is an outwardly convex arc surface, and the inner side surface of the pressure block 10 has anti-slip grooves, which further improves the stability of the clamping and prevents the support tube 15 from slipping or falling off. When the screw 11 rotates, a small amount of displacement occurs along the axis direction. During this process, the rotating rod 9 is slightly inserted or pulled out of the second mounting hole for adaptive adjustment. The screw 11 and the mounting shaft 8 are spirally connected to ensure a stable clamping and prevent loosening. A shell 13 is installed on the sliding seat 6, and the pressure block 10, the rotating rod 9 and the connecting rod 12 are all accommodated in the shell 13 to avoid being affected by dust and impurities.
[0028] As attached Figure 7As shown, the expansion device 5 includes an expansion tube 51 with a through-hole 52 machined along its axis. The through-hole 52 allows the support tube 15 to pass through. A conical expansion head 55 is mounted on the end of the expansion tube 51 near the fixing base 2 to facilitate insertion into the shrink tube 14. The end of the expansion tube 51 near the mounting base 4 has an air inlet 53. The surface of the expansion tube 51 is machined with a plurality of air outlet holes 54 at even intervals, which communicate with the air inlet holes 53. During use, the air inlet holes 53 are connected to an air pump, and gas is ejected through the air outlet holes 54, allowing the expansion device 5 to move more smoothly within the auxiliary sleeve 16 and shrink tube 14, preventing the shrink tube 14 from clinging to the expansion device 5 and hindering its movement.
[0029] When in use, the cold shrink tube 14 to be expanded is put on the flexible auxiliary sleeve 16, and the linear drive device 3 is started to insert the expansion device 5 through the opening 21 into the auxiliary sleeve 16 to expand the cold shrink tube 14. When the expansion head 55 of the expansion device 5 passes through the cold shrink tube 14, the expansion head 55 is removed. Figure 3 As shown, a support tube 15 of corresponding size is inserted into the through hole 52 of the expansion cylinder 51, with one end of the support tube 15 exposed. The sliding seat 6 is moved to align the mounting wall 7 with the support tube 15. One end of the support tube 15 is inserted into the mounting wall 7. The screw member 11 is rotated to cause the pressure block 10 to contract and tighten the support tube 15. The slider of the linear drive device 3 then moves in the opposite direction, and the expansion cylinder 51 is withdrawn from the shrink tube 14. The shrinking shrink tube 14 wraps around the support tube 15, completing the expansion. As the expansion cylinder 51 withdraws, the shrink tube 14 pulls on the support tube 15. The pressure block 10 firmly clamps the support tube 15 to prevent it from shaking, making the expansion process smoother and more reliable.
[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A cold shrink tube expansion and positioning device, characterized in that: The invention comprises a table top, a fixing seat is provided on the table top, an opening is provided on the fixing seat, and a flexible auxiliary sleeve is provided around the opening; a linear drive device is provided on one side of the fixing seat, and the linear drive device comprises a guide rail connected to the table top and a slider slidably connected to the guide rail, a mounting seat is provided on the slider, and an expansion device coaxial with the opening is provided on the mounting seat, and the expansion device is driven by the linear drive device to move through the opening to insert the auxiliary sleeve or withdraw from the opening away from the fixing seat; a sliding seat slidably connected to the table top is provided at the other end of the fixing seat, and a mounting wall and a mounting shaft coaxial with the opening are provided on the sliding seat at intervals, A rotating rod parallel to the axis of the opening is provided between the mounting wall and the mounting shaft, the mounting wall is annular, and at least two pressure blocks are provided around the mounting wall, a first mounting hole and a second mounting hole are provided at intervals on the pressure block, the pressure block is rotatably connected to the mounting wall through the first mounting hole, one end of the rotating rod is inserted into the second mounting hole, an external thread is provided on the mounting shaft, a screw part is spirally connected to the mounting shaft, a connecting rod corresponding to the number of pressure blocks is provided on the end of the screw part close to the mounting wall, one end of the connecting rod is rotatably connected to the screw part, and the other end is rotatably connected to the rotating rod, and the pressure blocks are synchronously retracted or opened when the screw part is rotated.
2. The cold shrink tube expansion and positioning device according to claim 1, characterized in that: The expansion device comprises an expansion cylinder, a through hole is provided along the axis of the expansion cylinder, and a conical expansion head is provided at one end of the expansion cylinder close to the fixing seat.
3. The cold shrink tube expansion and positioning device according to claim 2, characterized in that: An air inlet is provided at one end of the expansion cylinder close to the mounting seat, and a plurality of air outlets communicated with the air inlet are evenly spaced on the surface of the expansion cylinder.
4. The cold shrink tube expansion and positioning device according to claim 1, characterized in that: The moving direction of the sliding seat is perpendicular to the moving direction of the expansion device.
5. The cold shrink tube expansion and positioning device according to claim 1, characterized in that: The inner side surface of the pressing block is an outwardly convex arc surface.
6. The cold shrink tube expansion and positioning device according to claim 1, characterized in that: The inner side surface of the pressing block is provided with anti-slip grooves.
7. The cold shrink tube expansion and positioning device according to claim 1, characterized in that: A shell is provided on the sliding seat, and the pressing block, the rotating rod and the connecting rod are accommodated in the shell.