Hydraulic lock bolt capable of improving connection reliability

By designing hydraulic locking bolts for both fixing and insertion mechanisms, the problem of needing a wrench for disassembly in existing technologies has been solved, achieving convenient tool-free disassembly and installation and improving connection reliability.

CN224229006UActive Publication Date: 2026-05-12ZHEJIANG WUERTUOKE AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG WUERTUOKE AUTO PARTS CO LTD
Filing Date
2025-07-01
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing hydraulic lock bolts require a wrench for disassembly, which makes the operation inconvenient.

Method used

A hydraulic lock bolt comprising a fixing mechanism and an insertion mechanism was designed. By pulling the fixing rod, the tilting platform is moved. The cooperation of the tension spring and the return spring enables disassembly and installation without auxiliary tools. The insertion mechanism uses the insertion post and the limiting groove to reliably fix the lock post.

Benefits of technology

It enables easy disassembly and installation without auxiliary tools, improves connection reliability, and ensures the stability of the lock pin during use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a hydraulic lock plunger capable of improving connection reliability, which relates to the technical field of hydraulic lock plungers and comprises a lock cylinder body, fixing mechanisms are fixedly mounted on two sides of the lock cylinder body, inserting mechanisms are sleeved outside the fixing mechanisms, each fixing mechanism comprises a fixing shell fixedly mounted on one side of the lock cylinder body, and the inserting mechanisms are inserted into the fixing shells. A limiting cylinder is fixedly mounted on one side of the inner wall of the fixing shell, and a fixing rod is slidably connected into the limiting cylinder. The fixing rod is pulled outwards, the fixing rod drives the inclined table to move, the tension spring is stretched, the inclined table leaves the rectangular block, the reset spring drives the rectangular block to move in the fixing shell, the fixing shell leaves the inserting mechanism, the fixing mechanism is fixed to the lock frame and taken down, and disassembly can be conducted without an auxiliary tool. The defects that in the prior art, a wrench needs to be used for assisting in the disassembling process, and inconvenience is possibly caused in the disassembling process are overcome.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic lock bolt technology, and in particular to a hydraulic lock bolt that can improve connection reliability. Background Technology

[0002] A hydraulic lock is a mechanical device that uses hydraulic principles for locking and securing. It is typically used in specific applications to achieve high-precision, high-reliability fastening. Through the pressure transmission of a hydraulic system, a hydraulic lock applies sufficient force to firmly lock mechanical components in a designated position, preventing movement or loosening. Hydraulic locks are widely used in aviation, construction machinery, railways, ships, heavy equipment, and other fields requiring high-strength fastening and precision operation.

[0003] A hydraulic lock bolt is a metal rod that is fixed to the lock frame with bolts. Existing metal rods are all fixed with bolts during installation, and a wrench is required for disassembly, which can lead to inconvenience during disassembly. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the prior art, a wrench is always needed to assist in disassembly, which may make disassembly inconvenient.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulic lock bolt that can improve connection reliability, comprising: a lock bolt body, wherein a fixing mechanism is fixedly installed on both sides of the lock bolt body, and an insertion mechanism is sleeved on the outside of the fixing mechanism;

[0006] The fixing mechanism includes a fixed housing fixedly installed on one side of the lock pin body. A limit cylinder is fixedly installed on one side of the inner wall of the fixed housing. A fixed rod is slidably connected inside the limit cylinder. An inclined platform is fixedly installed on the outside of the fixed rod. A tension spring is fixedly installed on one side of the inclined platform. Rectangular blocks are fixedly inserted through both sides of the fixed housing. A connecting plate is fixedly installed on one side of the rectangular block. A telescopic rod is fixedly installed on one side of the connecting plate. A return spring is provided on the outside of the telescopic rod.

[0007] In a preferred embodiment, a sliding through hole adapted to the fixing rod is provided on one side of the fixing shell, and rectangular through holes adapted to the rectangular block are provided on both sides of the fixing shell.

[0008] In a preferred embodiment, one side of the rectangular block is inclined and is adapted to the outer surface of the inclined platform.

[0009] In a preferred embodiment, one end of the return spring is fixedly installed on the inner wall of the fixed housing, and the other end of the return spring is fixedly installed on one side of the connecting plate.

[0010] In a preferred embodiment, the insertion mechanism includes a square block inserted into the outer surface of the fixed shell, with an insertion hole at the center of the square block, limiting grooves on both sides of the insertion hole, and a plug fixedly installed on one side of the square block.

[0011] In a preferred embodiment, the limiting groove is adapted to the rectangular block, and the through hole is adapted to the fixing shell.

[0012] In a preferred embodiment, a fixing hole adapted to the insertion post is provided on one side of the locking post body.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: Utility Model Content

[0015] Pull the fixing rod outward, and the fixing rod will move the tilting platform, stretching the tension spring. The tilting platform will move away from the rectangular block, and the return spring will move the rectangular block inside the fixing shell, moving the fixing shell away from the insertion mechanism. The fixing mechanism will then be fixed on the lock frame and removed. Disassembly can be performed without the use of auxiliary tools, which solves the problem that in the existing technology, a wrench is required for disassembly, which may cause inconvenience during disassembly.

[0016] During clamping and installation, insert the through hole on the square block into the outside of the fixed shell, align the insert pin with the anti-rotation hole on the lock frame, and when the limiting groove is aligned with the rectangular block, loosen the fixing rod, tighten the spring to drive the tilting platform to reset, and move the rectangular block to insert it into the limiting groove for fixation. Insert the insert pin into the anti-rotation hole to prevent the lock pin body from rotating and ensure the reliability of the lock pin. Attached Figure Description

[0017] Figure 1 A perspective view of a hydraulic lock bolt that can improve connection reliability, provided by this utility model.

[0018] Figure 2 This utility model provides a schematic diagram of a fixing mechanism for a hydraulic lock bolt that can improve connection reliability.

[0019] Figure 3 This utility model provides a schematic diagram of the insertion mechanism for a hydraulic lock bolt that can improve connection reliability.

[0020] Legend:

[0021] 1. Locking pin body; 2. Fixing mechanism; 3. Insertion mechanism;

[0022] 21. Fixed shell; 22. Limiting cylinder; 23. Fixed rod; 24. Inclined platform; 25. Connecting plate; 26. Telescopic rod; 27. Return spring; 28. Rectangular block; 29. ​​Tension spring;

[0023] 31. Square block; 32. Restriction groove; 33. Insert post; 34. Through hole. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] like Figure 1-3 As shown, this utility model provides a technical solution: a hydraulic lock bolt that can improve connection reliability, comprising: a lock bolt body 1, with fixing mechanisms 2 fixedly installed on both sides of the lock bolt body 1, and an insertion mechanism 3 sleeved on the outside of the fixing mechanism 2. The fixing mechanism 2 includes a fixing shell 21 fixedly installed on one side of the lock bolt body 1, a limiting cylinder 22 fixedly installed on one side of the inner wall of the fixing shell 21, a fixing rod 23 slidably connected inside the limiting cylinder 22, an inclined platform 24 fixedly installed on the outside of the fixing rod 23, a tension spring 29 fixedly installed on one side of the inclined platform 24, and a through-hole fixed on both sides of the fixing shell 21. There is a rectangular block 28, a connecting plate 25 is fixedly installed on one side of the rectangular block 28, a telescopic rod 26 is fixedly installed on one side of the connecting plate 25, a return spring 27 is provided on the outside of the telescopic rod 26, a sliding through hole adapted to the fixed rod 23 is opened on one side of the fixed shell 21, and rectangular through holes adapted to the rectangular block 28 are opened on both sides of the fixed shell 21. One side of the rectangular block 28 is inclined and is adapted to the outer surface of the inclined platform 24. One end of the return spring 27 is fixedly installed on the inner wall of the fixed shell 21, and the other end of the return spring 27 is fixedly installed on one side of the connecting plate 25.

[0027] In the above embodiments:

[0028] When in use, pull the fixing rod 23 outward, the fixing rod 23 moves the tilting platform 24, stretches the tension spring 29, the tilting platform 24 moves away from the rectangular block 28, the return spring 27 moves the connecting plate 25, the connecting plate 25 moves the rectangular block 28 back to its original position, the telescopic rod 26 limits the connecting plate 25, limits the rectangular block 28, the return spring 27 moves the rectangular block 28 inside the fixing shell 21, the fixing shell 21 moves away from the insertion mechanism 3, the fixing mechanism 2 is fixed on the lock frame and removed, making it easy to disassemble the device.

[0029] Example 2

[0030] like Figures 1-3 As shown, the insertion mechanism 3 includes a square block 31 inserted into the outer surface of the fixed shell 21. A through hole 34 is provided at the center of the square block 31. Restriction grooves 32 are provided on both sides of the through hole 34. An insertion post 33 is fixedly installed on one side of the square block 31. The restriction groove 32 is adapted to the rectangular block 28. The through hole 34 is adapted to the fixed shell 21. A fixing is provided on one side of the locking post body 1 to adapt to the insertion post 33. An anti-rotation hole adapted to the insertion post 33 is provided on the locking frame.

[0031] In the above embodiment: During installation, the through hole 34 on the square block 31 is inserted into the outside of the fixed shell 21, the insert post 33 is aligned with the anti-rotation hole on the lock frame, and when the limiting groove 32 is aligned with the rectangular block 28, the fixing rod 23 is released, the spring 29 is tightened to drive the tilting platform 24 to reset, and the rectangular block 28 is moved to insert the rectangular block 28 into the limiting groove 32 for fixing. The insert post 33 is inserted into the anti-rotation hole to prevent the lock post body 1 from rotating and to ensure the reliability of the lock post.

[0032] Working principle:

[0033] like Figure 1-3 As shown, pulling the fixing rod 23 outward causes the tilting platform 24 to move, stretching the tension spring 29. The tilting platform 24 moves away from the rectangular block 28. The return spring 27 moves the connecting plate 25, which in turn moves the rectangular block 28 back to its original position. The telescopic rod 26 limits the connecting plate 25 and the rectangular block 28. The return spring 27 moves the rectangular block 28 inside the fixing shell 21, removing the fixing shell 21 from the insertion mechanism 3. The fixing mechanism 2 is then fixed to the lock frame and removed for easy disassembly of the device.

[0034] During installation, insert the through hole 34 on the square block 31 into the outside of the fixed shell 21, align the insert post 33 with the anti-rotation hole on the lock frame, and when the limiting groove 32 is aligned with the rectangular block 28, loosen the fixing rod 23, tighten the spring 29 to drive the tilting platform 24 to reset, and drive the rectangular block 28 to move. Insert the rectangular block 28 into the limiting groove 32 for fixing, and insert the insert post 33 into the anti-rotation hole to prevent the lock post body 1 from rotating and ensure the reliability of the lock post.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A hydraulic locking bolt that improves connection reliability, characterized in that, include: Locking post body (1), with fixing mechanisms (2) fixedly installed on both sides of the locking post body (1), and an insertion mechanism (3) sleeved on the outside of the fixing mechanism (2). The fixing mechanism (2) includes a fixing shell (21) fixedly installed on one side of the locking pin body (1). A limiting cylinder (22) is fixedly installed on one side of the inner wall of the fixing shell (21). A fixing rod (23) is slidably connected inside the limiting cylinder (22). An inclined platform (24) is fixedly installed on the outside of the fixed rod (23). A tension spring (29) is fixedly installed on one side of the inclined platform (24). A rectangular block (28) is fixedly inserted through both sides of the fixing shell (21). A connecting plate (25) is fixedly installed on one side of the rectangular block (28). A telescopic rod (26) is fixedly installed on one side of the connecting plate (25). A return spring (27) is provided on the outside of the telescopic rod (26).

2. The hydraulic locking bolt for improving connection reliability according to claim 1, characterized in that: The fixed shell (21) has a sliding through hole on one side that is compatible with the fixed rod (23), and the fixed shell (21) has rectangular through holes on both sides that are compatible with the rectangular block (28).

3. A hydraulic locking bolt for improving connection reliability according to claim 1, characterized in that: One side of the rectangular block (28) is inclined and the outer surface of the inclined platform (24) is adapted to the rectangular block (28).

4. A hydraulic locking bolt for improving connection reliability according to claim 1, characterized in that: One end of the reset spring (27) is fixedly installed on the inner wall of the fixed shell (21), and the other end of the reset spring (27) is fixedly installed on one side of the connecting plate (25).

5. A hydraulic locking bolt for improving connection reliability according to claim 1, characterized in that: The insertion mechanism (3) includes a square block (31) inserted on the outer surface of the fixed shell (21). A through hole (34) is provided at the center of the square block (31). Restriction grooves (32) are provided on both sides of the through hole (34). A plug (33) is fixedly installed on one side of the square block (31).

6. A hydraulic locking bolt for improving connection reliability according to claim 5, characterized in that: The limiting groove (32) is adapted to the rectangular block (28), and the through hole (34) is adapted to the fixed shell (21).

7. A hydraulic locking bolt for improving connection reliability according to claim 5, characterized in that: The locking pin body (1) has a fixing hole on one side that is compatible with the insertion pin (33).