Quickly assembled insulation pull rod press-fitting device

By combining electric slide rails and hydraulic devices, automatic centering and clamping of the insulating tie rod are achieved, solving the problem of inaccurate assembly in existing technologies and improving assembly efficiency and precision.

CN224310018UActive Publication Date: 2026-06-02XIAN GAOYUAN LIDA ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAN GAOYUAN LIDA ELECTRIC CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing insulating tie rod pressing device cannot achieve precise centering during assembly, requiring manual twisting for fixation, resulting in inaccurate assembly.

Method used

The system employs an electric slide rail and fixing device, using an electric telescopic rod to drive the centering block and connecting plate to achieve automatic centering and positioning of the insulating tie rod. A hydraulic device provides clamping force to ensure that the tie rod does not shift.

Benefits of technology

It enables automatic, precise, and reliable centering and clamping of insulating tie rods, improving assembly accuracy and avoiding the uncertainties of manual operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224310018U_ABST
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Abstract

This utility model relates to the field of insulating pull rod press-fitting technology, specifically to a quick-assembly insulating pull rod press-fitting device, including a base, an electric slide rail mounted on the top of the base, an electric slider mounted on the inner wall of the electric slide rail, and a fixing device mounted on the top of the electric slider; the fixing device includes a connecting block, which is fixedly connected to the bottom of the electric slider, a groove is formed on the side of the connecting block, a moving block is slidably connected to the inner wall of the groove, a connecting rod is fixedly connected to the side of the moving block, and a fixing rod is fixedly connected to the side of the connecting rod. This utility model uses an electric telescopic rod to drive a connecting plate to move to the left, which in turn causes four centering blocks to evenly contact and center the insulating pull rod passing through the first and second through holes from all sides. This replaces the method of manually twisting the pull rod for coarse positioning, achieving automatic, precise, and reliable centering, providing a precise foundation for subsequent operations (such as clamping and moving).
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Description

Technical Field

[0001] This utility model relates to the field of insulating tie rod press-fitting technology, specifically to a quick-assembly insulating tie rod press-fitting device. Background Technology

[0002] Insulating rods are important components in circuit breakers used for power transmission and insulation isolation. They are used to close or open high-voltage disconnect switches. The length of insulating rods varies depending on the application, and the shape of the fittings at both ends also differs. Because the moving parts and operating mechanisms of circuit breakers need to transmit motion precisely to ensure the accurate operation of the moving contacts, the assembly precision requirements for insulating rods are very high.

[0003] Patent document CN213969838U discloses a pressing device for an insulating tie rod, including a frame. A left fixed beam is welded to one end of the upper surface of the frame. A first guide post, a second guide post, and a left hydraulic cylinder are installed on the inner side of the left fixed beam. A left moving beam is slidably installed at one end of the second guide post. A first left tooling mold and a left connector positioning tool are installed on one side of the left moving beam. A right moving beam is slidably installed at the other end of the second guide post. A right connector positioning tool and a second left tooling mold are installed on one side of the right moving beam. An insulating tie rod is installed on the inner side of the left and right moving beams. A left moving bracket, a central connecting beam, a central bracket, and a right moving bracket are installed on the second guide post.

[0004] Although the aforementioned application documents use a joint positioning fixture to position the two ends of the joint, employ pressure-controlled crimping, and use three brackets to evenly fix the insulating tube, it is impossible to center the pull rod during use. The pull rod can only be fixed by manually twisting it.

[0005] Therefore, a rapid assembly insulated tie rod pressing device is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a quick-assembly insulating tie rod pressing device, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: It includes a base, an electric slide rail mounted on the top of the base, an electric slider mounted on the inner wall of the electric slide rail, and a fixing device mounted on the top of the electric slider; the fixing device includes a connecting block, which is fixedly connected to the bottom of the electric slider; a groove is formed on the side of the connecting block; a moving block is slidably connected to the inner wall of the groove; a connecting rod is fixedly connected to the side of the moving block; a fixing rod is fixedly connected to the side of the connecting rod; a centering block is fixedly connected to the side of the fixing rod; a movable rod is joined to the side of the connecting rod; a crossbar is fixedly connected to the side of the movable rod; a connecting plate is fixedly connected to the side of the crossbar; and two electric telescopic rods are fixedly connected to the side of the connecting plate.

[0008] Preferably, the output end of the electric telescopic rod is fixedly connected to the left side of the connecting block, and there are four sliding grooves in total.

[0009] Preferably, there are four sliders, and the bottom of the centering block is provided with an arc-shaped groove for fixing the insulating pull rod.

[0010] Preferably, the side of the connecting block has a first through hole for the insulating tie rod to pass through, and the side of the connecting plate has a second through hole for the insulating tie rod to pass through.

[0011] Preferably, the side of the connecting block is fitted with a stabilizing device for further fixing the insulating tie rod.

[0012] Preferably, the stabilizing device includes a hydraulic chamber, which is fixedly connected to the top of the connecting plate. Inside the hydraulic chamber, a first hydraulic rod is slidably connected to a piston at one end, and the first hydraulic rod is fixedly connected to the side of the connecting block.

[0013] Preferably, a second hydraulic rod is slidably connected to a piston at one end inside the hydraulic chamber. An elastic telescopic rod is fixedly connected to the top of the second hydraulic rod, and a clamping block is fixedly connected to the bottom of the elastic telescopic rod. Two stabilizing devices are assembled on the outer wall of the connecting block. The elastic telescopic rod consists of a thick rod and a thin rod, with the thin rod slidably connected to the inner wall of the thick rod. The hydraulic chamber is filled with high-viscosity hydraulic oil.

[0014] Compared with the prior art, this utility model provides a quick-assembly insulating tie rod pressing device, which has the following beneficial effects:

[0015] 1. The electric telescopic rod drives the connecting plate to move to the left. The connecting plate drives the four centering blocks to evenly contact and center the insulating pull rod that passes through the first and second through holes from all sides. This replaces the method of manually twisting the pull rod for rough positioning, realizing automatic, accurate and reliable centering, and providing a precise foundation for subsequent operations (such as clamping and moving).

[0016] 2. During the process of the connecting plate moving to the left in the step, it simultaneously squeezes the first hydraulic rod, forcing it to move to the left (compress), which drives the clamping block to move downward, pressing the insulating pull rod, which has been centered and positioned by the centering block, from above (or from the side). Based on the centering and positioning, it provides an active and reliable clamping force to ensure that the insulating pull rod will not shift, loosen or fall off in subsequent operations (such as starting the electric slider to move the pull rod). Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0019] Figure 3 This is a schematic diagram of part of the structure of this utility model on the right side;

[0020] Figure 4 This is a schematic diagram of the left side of a portion of the structure of this utility model.

[0021] In the diagram: 1. Base; 2. Fixing device; 21. Connecting block; 22. Slide groove; 23. Connecting rod; 24. Centering block; 25. Movable rod; 26. Crossbar; 27. Connecting plate; 28. Electric telescopic rod; 29. ​​Slider; 210. Fixing rod; 3. Stabilizing device; 31. Hydraulic chamber; 32. First hydraulic rod; 33. Second hydraulic rod; 34. Elastic telescopic rod; 35. Clamping block; 4. Electric slide rail; 5. Electric slider. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] See Figures 1-4 This embodiment provides a quick-assembly insulating pull rod pressing device, including a base 1, an electric slide rail 4 mounted on the top of the base 1, an electric slider 5 mounted on the inner wall of the electric slide rail 4, and a fixing device 2 mounted on the top of the electric slider 5.

[0025] The fixing device 2 includes a connecting block 21, which is fixedly connected to the bottom of the electric slider 5. A groove 22 is provided on the side of the connecting block 21. A moving block 29 is slidably connected to the inner wall of the groove 22. A connecting rod 23 is fixedly connected to the side of the moving block 29. A fixing rod 210 is fixedly connected to the side of the connecting rod 23. A centering block 24 is fixedly connected to the side of the fixing rod 210. A movable rod 25 is hinged to the side of the connecting rod 23. A crossbar 26 is fixedly connected to the side of the movable rod 25. A connecting plate 27 is fixedly connected to the side of the crossbar 26. Two electric telescopic rods 28 are fixedly connected to the side of the connecting plate 27.

[0026] The output end of the electric telescopic rod 28 is fixedly connected to the left side of the connecting block 21, and there are four sliding grooves 22.

[0027] There are four sliders 29 in total, and the bottom of the centering block 24 has an arc-shaped groove for fixing the insulating pull rod.

[0028] The connecting block 21 has a first through hole on its side for the insulating rod to pass through, and the connecting plate 27 has a second through hole on its side for the insulating rod to pass through.

[0029] In practical use, the insulating rod is passed through the first and second through holes. The electric telescopic rod 28 is activated, which drives the connecting plate 27 to move to the left. When the connecting plate 27 moves to the left, it drives the movable rod 25 to rotate counterclockwise around the hinge point of the crossbar 26. The crossbar 26 drives the connecting rod 23 to move to the top. The connecting rod 23 drives the moving block 29 to move to the top. The moving block 29 slides on the inner wall of the slide groove 22. When the connecting rod 23 moves, it drives the fixed rod 210 to move to the top. The fixed rod 210 drives the four centering blocks 24 to move to the center to center the insulating rod. Then, the electric slider 5 is activated to drive the two insulating rods to move towards each other.

[0030] Example 2

[0031] See Figures 1-4 Based on Embodiment 1, the connecting block 21 is equipped with a stabilizing device 3 on its side for further fixing the insulating tie rod.

[0032] The stabilizing device 3 includes a hydraulic chamber 31, which is fixedly connected to the top of the connecting plate 27. Inside the hydraulic chamber 31, a piston is slidably connected to a first hydraulic rod 32, which is fixedly connected to the side of the connecting block 21.

[0033] Inside the hydraulic chamber 31, a second hydraulic rod 33 is slidably connected to a piston at one end. An elastic telescopic rod 34 is fixedly connected to the top of the second hydraulic rod 33, and a clamping block 35 is fixedly connected to the bottom of the elastic telescopic rod 34. Two stabilizing devices 3 are assembled on the outer wall of the connecting block 21. The elastic telescopic rod 34 consists of a thick rod and a thin rod, and the thin rod is slidably connected to the inner wall of the thick rod. The hydraulic chamber 31 is filled with high-viscosity hydraulic oil.

[0034] When the above-mentioned equipment is used, when the connecting plate 27 moves to the left, it squeezes the first hydraulic rod 32. During the process of the first hydraulic rod 32 moving to the left, the internal pressure of the hydraulic chamber 31 increases, which drives the second hydraulic rod 33 to descend. The second hydraulic rod 33 drives the elastic telescopic rod 34 to descend, and the elastic telescopic rod 34 drives the clamping block 35 to descend, further clamping the insulating pull rod.

[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick assembly insulated pull rod press fitting device, characterized in that: Includes a base (1), the top of which is equipped with an electric slide rail (4), the inner wall of which is equipped with an electric slider (5), and the top of which is equipped with a fixing device (2). The fixing device (2) includes a connecting block (21), which is fixedly connected to the bottom of the electric slider (5). A groove (22) is provided on the side of the connecting block (21). A moving block (29) is slidably connected to the inner wall of the groove (22). A connecting rod (23) is fixedly connected to the side of the moving block (29). A fixing rod (210) is fixedly connected to the side of the connecting rod (23). A centering block (24) is fixedly connected to the side of the fixing rod (210). A movable rod (25) is hinged to the side of the connecting rod (23). A crossbar (26) is fixedly connected to the side of the movable rod (25). A connecting plate (27) is fixedly connected to the side of the crossbar (26). Two electric telescopic rods (28) are fixedly connected to the side of the connecting plate (27).

2. A quick assembly insulated pull rod press fitting device according to claim 1, characterized in that: The output end of the electric telescopic rod (28) is fixedly connected to the left side of the connecting block (21), and there are four grooves (22).

3. A quick assembly insulated pull rod press fitting device according to claim 2, characterized in that: There are four moving blocks (29), and the bottom of the centering block (24) is provided with an arc-shaped groove for fixing the insulating tie rod.

4. A quick assembly insulated pull rod press fitting device according to claim 3, characterized in that: The connecting block (21) has a first through hole on its side for the insulating rod to pass through, and the connecting plate (27) has a second through hole on its side for the insulating rod to pass through.

5. A quick assembly insulated pull rod press fitting device according to claim 1, characterized in that: The connecting block (21) is equipped with a stabilizing device (3) on its side for further fixing the insulating tie rod.

6. A quick assembly insulated pull rod press fitting device according to claim 5, characterized in that: The stabilizing device (3) includes a hydraulic chamber (31), which is fixedly connected to the top of the connecting plate (27). Inside the hydraulic chamber (31), a first hydraulic rod (32) is slidably connected to a piston at one end. The first hydraulic rod (32) is fixedly connected to the side of the connecting block (21).

7. A quick assembly insulated pull rod press fitting device according to claim 6, characterized in that: The hydraulic chamber (31) has a piston slidingly connected to a second hydraulic rod (33) at one end. The top of the second hydraulic rod (33) is fixedly connected to an elastic telescopic rod (34). The bottom of the elastic telescopic rod (34) is fixedly connected to a clamping block (35). The outer wall of the connecting block (21) is equipped with two stabilizing devices (3). The elastic telescopic rod (34) consists of a thick rod and a thin rod, and the thin rod is slidably connected to the inner wall of the thick rod. The hydraulic chamber (31) is filled with high-viscosity hydraulic oil.