A cold shrink finger expansion device

CN224616989UActive Publication Date: 2026-08-11NAN PENG DIAN QI JI TUAN YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0003]现有冷缩指套扩张设备需要人工拿持进行加工,容易产生滑脱的情况,影响指套的加工精度,同时对指套直接进行扩张,会影响指套加工的效率

Benefits of technology

[0016] 1. By setting up a clamping mechanism, this utility model can ensure the stability of the finger sleeve during expansion processing, avoid deviation during processing, and greatly improve the processing accuracy of the finger sleeve.

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Abstract

This utility model discloses a cold-shrink finger sleeve processing technology, specifically a cold-shrink finger sleeve expansion device. The device includes an operating table with an expansion component mounted on its upper central side. A clamping mechanism is located on the front central side of the expansion component. The clamping mechanism includes a clamping block positioned on the front central side of the expansion component. The finger sleeve body is tightly fitted inside the clamping block, and springs are symmetrically mounted on the outer sides of the clamping block. This utility model, by setting up the clamping mechanism, ensures the stability of the finger sleeve during expansion processing, preventing deviation and significantly improving processing accuracy. Simultaneously, a coating mechanism is provided to apply a layer of water to the outside of the expansion pin before processing, providing lubrication when the finger sleeve and expansion pin contact, thus accelerating processing efficiency. Furthermore, a material unloading mechanism facilitates rapid unloading after processing, effectively improving the overall efficiency of finger sleeve processing.
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Description

Technical Field

[0001] This utility model relates to the field of cold shrink finger sleeve processing technology, specifically a cold shrink finger sleeve expansion device. Background Technology

[0002] Cold shrink finger sleeves are sealing devices used at cable branches. They consist of pre-expanded rubber material combined with a plastic spiral support tube. During on-site installation, the support tube is removed, and the elastic recoil force forms a seal.

[0003] Existing cold shrink finger sleeve expansion equipment requires manual handling during processing, which can easily lead to slippage and affect the processing accuracy of the finger sleeves. At the same time, directly expanding the finger sleeves will affect the processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a cold shrink finger sleeve expansion device to solve the problems in the prior art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A cold shrink finger sleeve expansion device includes an operating table, an expansion component is provided on the upper side of the middle part of the operating table, and a clamping mechanism is provided on the front side of the middle part of the expansion component.

[0007] The clamping mechanism includes a clamping block disposed on the front side of the middle part of the expansion assembly. The inside of the clamping block is tightly fitted with the finger sleeve body. Springs are symmetrically installed on the outside of the clamping block. A connecting plate is installed on the outside of the springs. A bracket is slidably connected to the lower end of the connecting plate. A rotating plate is rotatably connected to the lower side of the connecting plate. The middle part of the rotating plate is rotatably connected to the bracket. A slider is rotatably connected to the inner side of the rotating plate. The slider is slidably disposed in the middle of the upper end of the bracket. A third electric push rod is installed at the front end of the slider. The front end of the third electric push rod is fixedly connected to the bracket.

[0008] Preferably, the expansion assembly includes a fixed plate fixedly installed on the upper front of the fixed block, an operating table fixedly connected to the lower end of the fixed block, a first fixing groove is opened at equal angles inside the fixed plate, a movable pin is slidably arranged inside the first fixing groove, a movable block is fixedly installed at the front end of the movable pin, and an expansion pin is fixedly installed on the inner side of the movable block.

[0009] Preferably, the rear side of the movable pin is slidably connected to a second fixing groove, the second fixing groove is opened at an equal angle inside the rotating disk, the rotating disk is rotatably arranged on the rear side of the fixing disk, a connecting column is installed on the right rear side of the rotating disk, the inner side of the connecting column is rotatably connected to the output end of the first electric push rod, and the lower end of the first electric push rod is rotatably connected to the upper end of the operating table.

[0010] Preferably, an application mechanism is provided on the front left side of the expansion component. The application mechanism includes sponge brushes disposed on the upper and lower sides of the left side of the expansion component. A support rod is fixedly connected to the outside of the sponge brushes. A bidirectional lead screw is threadedly connected to the left side of the support rod. The bidirectional lead screw is rotatably disposed inside the upper side of the fixed frame. A motor is connected to the upper end of the bidirectional lead screw.

[0011] Preferably, the lower end of the fixed frame is slidably connected to a first electromagnetic slide rail, a second electric push rod is installed on the front side of the middle part of the first electromagnetic slide rail, and an operating table is fixedly connected to the front side of the second electric push rod.

[0012] Preferably, a water pipe is fixedly connected to the outer side of the middle part of the sponge brush, a water pump is fixedly connected to the lower end of the water pipe, and a water tank is installed below the water pump.

[0013] Preferably, a material unloading mechanism is provided below the bracket, which includes gears fixedly mounted on the left and right sides of the lower end of the bracket, and a support plate is rotatably connected to the outside of the gears.

[0014] Preferably, a rack is meshed with the lower side of the gear, the rack is slidably disposed on the upper side of the support plate, a fourth electric push rod is installed at the front end of the rack, the front end of the fourth electric push rod is fixedly connected to the support plate, a second electromagnetic slide rail is slidably connected to the lower side of the support plate, and an operating table is fixedly connected to the upper ends of the left and right sides of the second electromagnetic slide rail, and a material box is provided on the front side of the operating table.

[0015] The beneficial effects of this utility model are:

[0016] 1. By setting up a clamping mechanism, this utility model can ensure the stability of the finger sleeve during expansion processing, avoid deviation during processing, and greatly improve the processing accuracy of the finger sleeve.

[0017] 2. By setting up a coating mechanism, this utility model can coat the outside of the expansion pin with a layer of water before the finger sleeve is processed, which can generate lubrication when the finger sleeve and the expansion pin come into contact, thereby speeding up the processing efficiency of the finger sleeve.

[0018] 3. This utility model, by setting up a convenient unloading mechanism, facilitates quick unloading after the finger sleeve processing is completed, which can effectively improve the overall efficiency of finger sleeve processing. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall perspective structure of the expansion device of this utility model;

[0021] Figure 2 This is a perspective view of the connection structure of the rotating disk, connecting column and first electric push rod of the expansion device of this utility model;

[0022] Figure 3 This is a schematic diagram of the expansion component structure of the expansion device of this utility model;

[0023] Figure 4 This is a schematic diagram of the coating mechanism of the expansion device of this utility model;

[0024] Figure 5 This is a schematic diagram of the clamping mechanism of the expansion device of this utility model;

[0025] Figure 6 This is a schematic diagram of the material feeding mechanism of the expansion device of this utility model.

[0026] The attached figures are labeled as follows:

[0027] 1. Operating table; 2. Expansion assembly; 21. Fixed plate; 22. First fixed groove; 23. Moving pin; 24. Moving block; 25. Expansion pin; 26. Rotating plate; 27. Second fixed groove; 28. Fixed block; 29. ​​Connecting column; 211. First electric push rod; 3. Application mechanism; 31. Sponge brush; 32. Support rod; 33. Bidirectional lead screw; 34. Motor; 35. Fixing frame; 36. First electromagnetic slide rail; 37. Second electric push rod; 38. Water pipe; 39. Water pump; 311. Water tank; 4. Clamping mechanism; 41. Clamping block; 42. Spring; 43. Connecting plate; 44. Rotating plate; 45. Slider; 46. Third electric push rod; 47. Bracket; 5. Material feeding mechanism; 51. Gear; 52. Rack; 53. Fourth electric push rod; 54. Support plate; 55. Second electromagnetic slide rail; 6. Material box; 7. Finger sleeve body. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] To address the problems existing in the prior art, this embodiment provides the following technical solution: a cold-shrink finger sleeve expansion device, comprising an operating table 1 and an expansion component 2. A clamping mechanism 4 is provided on the front side of the middle part of the expansion component 2. The clamping mechanism 4 can clamp and limit the finger sleeve body 7 to be processed, ensuring that the finger sleeve body 7 will not shift during processing, thus greatly improving the processing accuracy of the finger sleeve body 7. Simultaneously, a coating mechanism 3 is provided, located on the left side of the front of the expansion component 2. The coating mechanism 3 can apply water to the outer side of the expansion pin 25 during the processing of the finger sleeve body 7, which can lubricate the finger sleeve body 7 with the expansion pin 25 during the expansion process, thereby accelerating the expansion speed of the finger sleeve body 7. In addition, a material unloading mechanism 5 is provided, located below the clamping mechanism 4, which can quickly unload the finger sleeve body 7 after processing, effectively improving the overall processing efficiency of the finger sleeve body 7.

[0030] like Figure 1 , Figure 5 and Figure 6 As shown, by providing a clamping mechanism 4 on the front side of the middle part of the expansion assembly 2, the finger sleeve body 7 to be processed can be picked up and placed inside the clamping block 41 provided in the clamping mechanism 4. The clamping block 41 is provided on the left and right sides of the middle part of the connecting plate 43. The clamping block 41 and the connecting plate 43 are fixedly connected by a spring 42. At the same time, the lower side of the connecting plate 43 is rotatably connected to the rotating plate 44. The middle part of the rotating plate 44 is rotatably connected to the bracket 47. In addition, the inner side of the rotating plate 44 is rotatably connected to the slider 45. A third electric push rod 46 is installed on the front side of the middle part of the slider 45, which can be opened. The output end of 46 will push the slider 45 to slide at the upper middle part of the bracket 47. When the output end of the third electric push rod 46 pulls the slider 45 forward, the slider 45 will cause the connected rotating plate 44 to rotate inward. The connecting plate 43 is connected to the rear interior of the rotating plate 44. The lower end of the connecting plate 43 is slidably connected to the bracket 47. That is, when the rotating plate 44 rotates inward, the connecting plate 43 can move inward. When the connecting plate 43 moves inward, the clamping block 41 set inside the upper side will also move together, so that the inner side of the clamping block 41 can be firmly attached to the finger sleeve body 7, thereby firmly clamping and fixing the finger sleeve body 7.

[0031] like Figure 1 and Figure 4As shown, after the finger sleeve body 7 is clamped and fixed, in order to help the finger sleeve body 7 expand faster, the expansion pins 25 provided in the expansion assembly 2 can be lubricated. Sponge brushes 31 are symmetrically arranged on the upper and lower left side of the expansion assembly 2. A support rod 32 is installed on the outside of the sponge brushes 31. A double-acting screw 33 is threaded to the left side of the support rod 32. The double-acting screw 33 is rotatably set on the upper side inside the fixing frame 35. The lower end of the fixing frame 35 is located inside the first electromagnetic slide rail 36. By opening the controller on the front left side of the first electromagnetic slide rail 36, the fixing frame 35 can slide to the right, causing the sponge brushes 31 to move to the upper and lower sides of the expansion pins 25. Then, the motor 34 installed on the upper end of the double-acting screw 33 (model Z4-180-21) can be turned on. When the bidirectional lead screw 33 can rotate, the support rod 32 can slide on the inner side above the fixed frame 35. When the support rod 32 slides inward, the sponge brush 31 will also slide inward, forming a ring that fits against the outside of the expansion pin 25. The water pipe 38 is fixedly connected to the outer side of the middle part of the sponge brush 31. The lower end of the water pipe 38 is equipped with a water pump 39, which is located on the upper side of the water tank 311. The water pump 39 can be turned on to draw water from the inside of the water tank 311. The water will enter the inner side of the sponge brush 31 and be absorbed by the sponge brush 31. Then, the second electric push rod 37 installed at the front end of the middle part of the first electromagnetic slide rail 36 can be turned on. Its output end can push the first electromagnetic slide rail 36 back and forth. At this time, the sponge brush 31, which is full of water, can move to apply water to the outer side of the expansion pin 25.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, after the expansion pin 25 has finished applying the coating, the coating mechanism 3 can be moved back to the left side of the expansion assembly 2. A material feeding mechanism 5 is provided below the clamping mechanism 4. A support plate 54 is provided at the bottom of the material feeding mechanism 5. The support plate 54 is slidably located inside the second electromagnetic slide rail 55. The controller on the rear side of the second electromagnetic slide rail 55 can be opened, which allows the support plate 54 to move to the rear side. That is, the clamping mechanism 4 will also move together, which can move the clamped and fixed finger sleeve body 7 to the outside of the expansion pin 25.

[0033] An expansion pin 25 is fixedly installed on the inner side of the movable block 24. The movable block 24 is slidably disposed at an equal angle on the front side of the fixed plate 21. The fixed plate 21 is fixedly installed on the upper end of the fixed block 28. At the same time, a movable pin 23 is fixedly installed on the rear outer end of the movable block 24. The movable pin 23 slides inside the first fixed groove 22 opened at an equal angle inside the fixed plate 21. At the same time, the rear end of the movable pin 23 is slidably connected to the second fixed groove 27. The second fixed groove 27 is opened at an equal angle inside the rotating plate 26. The rotating plate 26 is located behind the fixed plate 21 and is rotatably disposed on the upper side inside the fixed block 28. The lower end of the fixed block 28 is fixedly connected to the operating table 1. A connecting post 29 is fixedly installed on the rear right side of the rotating plate 26. The lower side of the connecting post 29 is connected to the first electric... The output end of the push rod 211 is rotatably connected, and the lower end of the first electric push rod 211 is rotatably connected to the operating table 1. The first electric push rod 211 can be opened. The output end of the first electric push rod 211 can push the connected connecting column 29 to move upward, which will cause the rotating disk 26 to rotate. When the rotating disk 26 rotates, it will push the moving pin 23 located inside the second fixed groove 27 to slide. It will slide from the inner end of the second fixed groove 27 to the outer side. At this time, the moving pin 23 will slide from the inside of the first fixed groove 22 to the outer side. At this time, the moving block 24 will also move together. When the moving block 24 moves, the expansion pin 25 installed on the inner side will also move together. That is, when the expansion pin 25 moves outward to expand, the outer finger sleeve body 7 can be expanded.

[0034] After the finger sleeve body 7 has expanded, the operator can insert the support tube into the inside of the finger sleeve body 7 through the middle hole of the fixing plate 21 to facilitate the subsequent installation of the finger sleeve body 7. After the finger sleeve body 7 has expanded, the application mechanism 3 can be moved to the side again. At this time, the support rod 32 set in the application mechanism 3 can be moved to fit the front end of the expanded finger sleeve body 7. Then, the clamping mechanism 4 moves forward as a whole, and the application mechanism 3 also moves forward. The support rod 32 will push the expanded finger sleeve body 7 to facilitate the removal of the finger sleeve body 7 from the outside of the expansion pin 25.

[0035] like Figure 6As shown, after removing the finger sleeve body 7, the clamping mechanism 4 is moved to the front center of the operating table 1. A bracket 47 is slidably mounted on the lower end of the slider 45 provided in the clamping mechanism 4. Gears 51 are fixedly mounted on the left and right sides of the lower end of the bracket 47. The gears 51 are rotatably mounted inside the support plate 54. A rack 52 is meshed with the lower part of the gears 51. The rack 52 is located on the upper side of the support plate 54, and a fourth electric push rod 53 is mounted on its front side. The front end of the fourth electric push rod 53 is fixedly connected to the support plate 54, thus opening the fourth electric push rod 53. The output end of the electric push rod 53 can push the rack 52 to move, which will cause the gear 51 to rotate. The gear 51 can rotate forward. When it rotates 90°, the clamping mechanism 4 installed on the upper side will also rotate. After rotation, it will be located on the upper side of the material box 6 set on the front side of the operating table 1. Then the connecting plate 43 can be moved outward, which will drive the clamping block 41 to move together. This will cause the clamping block 41 to detach from the attached finger sleeve body 7. At this time, the finger sleeve body 7 will fall into the material box 6 installed on the front side of the operating table 1. This setting facilitates the quick unloading of the processed finger sleeve body 7.

[0036] The above electric linear actuator is model HB-DJ801.

[0037] The working principle of the cold shrink finger sleeve expansion device is as follows: An expansion component 2 is set above the middle of the operating table 1. A clamping mechanism 4 is set on the front side of the expansion component 2. The clamping mechanism 4 can clamp and fix the finger sleeve body 7 to be processed. After the finger sleeve body 7 is clamped, a coating mechanism 3 is set on the left side of the front of the expansion component 2. The coating mechanism 3 can lubricate the expansion pin 25 set in the expansion component 2. Then the finger sleeve body 7 is moved to the outside of the expansion pin 25, the expansion component 2 is opened, and the finger sleeve body 7 is expanded. After the finger sleeve body 7 is expanded, a support tube is inserted into the inside of the finger sleeve body 7. Then the finger sleeve body 7 is removed from the outside of the expansion pin 25. The material unloading mechanism 5 set below the clamping mechanism 4 facilitates the quick unloading of the processed finger sleeve body 7.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cold-shrink finger sleeve expansion device, characterized in that: It includes an operating table (1), an expansion component (2) is provided on the upper side of the middle part of the operating table (1), and a clamping mechanism (4) is provided on the front side of the middle part of the expansion component (2); The clamping mechanism (4) includes a clamping block (41) disposed on the front side of the middle part of the expansion assembly (2). The inside of the clamping block (41) is tightly fitted with a finger sleeve body (7). Springs (42) are symmetrically installed on the outside of the clamping block (41). A connecting plate (43) is installed on the outside of the springs (42). A bracket (47) is slidably connected to the lower end of the connecting plate (43). A rotating plate (44) is rotatably connected to the lower side of the connecting plate (43). The middle part of the rotating plate (44) is rotatably connected to the bracket (47). A slider (45) is rotatably connected to the inner side of the rotating plate (44). The slider (45) is slidably disposed in the middle of the upper end of the bracket (47). A third electric push rod (46) is installed at the front end of the slider (45). The front end of the third electric push rod (46) is fixedly connected to the bracket (47).

2. The cold shrink finger expansion device according to claim 1, characterized in that, The expansion assembly (2) includes a fixed plate (21) fixedly installed on the upper front of the fixed block (28). The lower end of the fixed block (28) is fixedly connected to an operating table (1). The fixed plate (21) has a first fixed groove (22) opened at equal angles inside. A moving pin (23) is slidably arranged inside the first fixed groove (22). A moving block (24) is fixedly installed at the front end of the moving pin (23). An expansion pin (25) is fixedly installed on the inner side of the moving block (24).

3. The cold shrink finger expansion device according to claim 2, characterized in that, The rear side of the movable pin (23) is slidably connected to a second fixing groove (27), which is opened at an equal angle inside the rotating disk (26). The rotating disk (26) is rotatably set on the rear side of the fixing disk (21). A connecting column (29) is installed on the right rear side of the rotating disk (26). The inner side of the connecting column (29) is rotatably connected to the output end of the first electric push rod (211), and the lower end of the first electric push rod (211) is rotatably connected to the upper end of the operating table (1).

4. The cold shrink finger expansion device according to claim 1, characterized in that, An applicator (3) is provided on the front left side of the expansion component (2). The applicator (3) includes a sponge brush (31) on the upper and lower left sides of the expansion component (2). A support rod (32) is fixedly connected to the outside of the sponge brush (31). A two-way screw (33) is threadedly connected to the left side of the support rod (32). The two-way screw (33) is rotatably disposed inside the upper side of the fixed frame (35). A motor (34) is connected to the upper end of the two-way screw (33).

5. The cold shrink finger expansion device according to claim 4, characterized in that, The lower end of the fixed frame (35) is slidably connected to a first electromagnetic slide rail (36), and a second electric push rod (37) is installed on the front side of the middle part of the first electromagnetic slide rail (36). An operating table (1) is fixedly connected to the front side of the second electric push rod (37).

6. The cold shrink finger expansion device according to claim 4, characterized in that, A water pipe (38) is fixedly connected to the outer side of the middle part of the sponge brush (31), and a water pump (39) is fixedly connected to the lower end of the water pipe (38). A water tank (311) is installed below the water pump (39).

7. The cold shrink finger expansion device according to claim 1, characterized in that, The bracket (47) is provided with a material feeding mechanism (5) below it. The material feeding mechanism (5) includes gears (51) fixedly installed on the left and right sides of the lower end of the bracket (47). A support plate (54) is rotatably connected to the outside of the gears (51).

8. The cold shrink finger expansion device according to claim 7, characterized in that, The gear (51) is meshed with a rack (52) on its lower side. The rack (52) is slidably disposed on the upper side of the support plate (54). A fourth electric push rod (53) is installed at the front end of the rack (52). The front end of the fourth electric push rod (53) is fixedly connected to the support plate (54). A second electromagnetic slide rail (55) is slidably connected to the lower side of the support plate (54). An operating table (1) is fixedly connected to the upper ends of the left and right sides of the second electromagnetic slide rail (55). A material box (6) is provided on the front side of the operating table (1).