Tool for disassembling oil cylinder

By combining the rotating disc with the sleeve and designing the fastening block and connecting rod, the instability problem of traditional disassembly tools is solved, enabling a fast and stable disassembly process and ensuring the precise positioning and safety of the hydraulic cylinder components.

CN224209854UActive Publication Date: 2026-05-08ZHEJIANG HUACHUAN SHENNENG ENVIRONMENTAL PROTECTION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HUACHUAN SHENNENG ENVIRONMENTAL PROTECTION CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional methods of disassembling the sealed cylinder head can easily cause the wrench to slip out, and the lack of a precise positioning mechanism can lead to misalignment or damage to the cylinder components.

Method used

By employing a clever combination of a rotating disc and a sleeve, along with the secure fixing of fastening blocks and connecting rods, the design incorporates a sliding fit between the cross block and the cross groove, and a precise fit between the positioning rod and the cylinder head positioning groove, ensuring accurate positioning and stability during the disassembly process.

Benefits of technology

It enables a fast and stable disassembly process, improves work efficiency, ensures the accuracy and safety of disassembly, avoids damage to cylinder components, and reduces shaking and deviation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil cylinder disassembling tools, and discloses an oil cylinder disassembling tool which comprises a sleeving barrel, a rotating disc and a plurality of fastening blocks, a plurality of cross-shaped grooves are formed in the edge of the upper surface of the sleeving barrel, the rotating disc is arranged outside the sleeving barrel in a sleeving mode, a plurality of cross-shaped blocks are fixedly connected to the edge of the inner wall of the rotating disc, and a plurality of fastening blocks are fixedly connected to the edge of the inner wall of the rotating disc. The lower surfaces of the cross blocks are tightly attached to the inner bottom face of the cross groove, a sleeving groove is formed in the middle of the lower surface of the sleeving cylinder, a plurality of positioning rods are fixedly connected to the edge of the inner top face of the sleeving groove, and the outer walls of the sides, close to the center of the sleeving cylinder, of the fastening blocks are tightly attached to the outer wall of the sleeving cylinder. According to the oil cylinder disassembling tool, the rotating disc is ingeniously matched with the sleeving barrel, and the fastening block and the connecting rod are stably fixed, so that the oil cylinder disassembling tool realizes a rapid and stable disassembling process, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic cylinder disassembly tools, and in particular to a hydraulic cylinder disassembly tool. Background Technology

[0002] A hydraulic cylinder, also known as a hydraulic cylinder, is an actuator that converts hydraulic energy into mechanical energy. It mainly consists of a cylinder body, piston, piston rod, and sealing device. The piston is driven to reciprocate within the cylinder by the pressure of hydraulic fluid, thereby achieving linear motion or output force. Hydraulic cylinders are widely used in the transmission systems of various mechanical equipment, such as excavators, cranes, and hydraulic presses. They have advantages such as simple structure, reliable operation, and large output force. By controlling the flow and pressure of the hydraulic fluid, the speed and output force of the cylinder can be precisely controlled. A hydraulic cylinder disassembly tool is a practical tool specifically designed for disassembling and repairing hydraulic cylinders.

[0003] Traditionally, a wrench is used to disassemble a sealed cylinder head. However, this method can easily cause the wrench to slip, leading to safety issues. Furthermore, traditional methods for disassembling sealed cylinder heads often lack a precise positioning mechanism, which can easily cause misalignment or damage to the cylinder components during disassembly.

[0004] Therefore, those skilled in the art have provided a tool for disassembling hydraulic cylinders to solve the problems mentioned in the background section. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hydraulic cylinder disassembly tool. Through the ingenious cooperation between the rotating disc and the sleeve, as well as the stable fixation of the fastening block and the connecting rod, this hydraulic cylinder disassembly tool achieves a fast and stable disassembly process, improving work efficiency. In addition, the sliding fit design of the cross block and the cross groove, and the precise cooperation between the positioning rod and the cylinder head positioning groove, ensure accurate positioning during the disassembly process, effectively avoiding damage to the hydraulic cylinder components. At the same time, the tight fit between the sleeve groove and the outer wall of the cylinder head, and the stable connection between the connecting rod and the connecting groove, provide stable support for the operation, reduce shaking and displacement during the disassembly process, and further improve the accuracy and safety of disassembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A hydraulic cylinder disassembly tool includes a sleeve, a rotating disk, and multiple fastening blocks. Multiple cross grooves are formed on the edge of the upper surface of the sleeve. The rotating disk is fitted over the sleeve. Multiple cross blocks are fixedly connected to the edge of the inner wall of the rotating disk. The lower surface of each cross block is tightly fitted to the inner bottom surface of the cross groove. A sleeve groove is formed in the middle of the lower surface of the sleeve. Multiple positioning rods are fixedly connected to the edge of the inner top surface of the sleeve groove. The outer wall of each fastening block near the center of the sleeve is tightly fitted to the outer wall of the sleeve. A threaded groove is formed in the middle of the outer wall of each fastening block near the center of the sleeve. A connecting groove is formed on the outer wall of the rotating disk. A connecting rod is provided inside each connecting groove. The outer wall of each connecting rod near the center of the sleeve is threadedly connected to the inner wall of the threaded groove. A fixing bolt is threadedly connected to the outer wall of each connecting rod away from the center of the sleeve. The outer wall of each fixing bolt near the center of the sleeve is tightly fitted to the outer wall of the rotating disk.

[0008] Through the above technical solution, the cooperation between the rotating disk and the sleeve, as well as the fixing of the fastening block and the connecting rod, a fast and stable disassembly process is achieved, improving work efficiency. The sliding fit design of the cross block and the cross groove, as well as the precise cooperation between the positioning rod and the cylinder head positioning groove, ensures accurate positioning during the disassembly process, avoiding damage to the cylinder components. Furthermore, the tight fit between the sleeve groove and the outer wall of the cylinder head, and the stable connection between the connecting rod and the connecting groove, provide a stable operating environment and reduce shaking and displacement during the disassembly process.

[0009] Furthermore, the outer walls of the cross blocks are all slidably fitted against the inner walls of the cross grooves;

[0010] The above technical solution, through the sliding fit design of the cross block and the cross groove, ensures precise positioning during the disassembly process.

[0011] Furthermore, the inner wall of the sleeve groove is tightly fitted to the outer wall of the cylinder head, and the outer wall of the positioning rod is tightly fitted to the positioning groove at the upper end of the cylinder head.

[0012] The above technical solution and design provide operators with a stable operating environment, reducing shaking and displacement during disassembly.

[0013] Furthermore, the outer wall of the connecting rod is in close contact with the inner wall of the connecting groove;

[0014] The above technical solution reduces the gaps at the joints by fitting tightly together, thereby enhancing the overall rigidity of the structure and enabling the disassembly tool to remain stable even when subjected to large loads.

[0015] Furthermore, thread marks are formed on the outer walls of both sides of the connecting rod;

[0016] The above technical solution uses thread marks for connection with threaded grooves and fixed bolts respectively.

[0017] Furthermore, fixed handles are fixedly connected to the middle of both sides of the outer wall of the rotating disk;

[0018] The above technical solution allows the operator to easily rotate the turntable by using a fixed handle.

[0019] This utility model has the following beneficial effects:

[0020] This utility model proposes a hydraulic cylinder disassembly tool. Through the ingenious cooperation between the rotating disc and the sleeve, as well as the stable fixation of the fastening block and the connecting rod, the tool achieves a fast and stable disassembly process, improving work efficiency. In addition, the sliding fit design of the cross block and the cross groove, and the precise cooperation between the positioning rod and the cylinder head positioning groove, ensure accurate positioning during the disassembly process, effectively avoiding damage to the hydraulic cylinder components. At the same time, the tight fit between the sleeve groove and the outer wall of the cylinder head, and the stable connection between the connecting rod and the connecting groove, provide stable support for the operation, reduce shaking and displacement during the disassembly process, and further improve the accuracy and safety of disassembly. Attached Figure Description

[0021] Figure 1 This is an isometric view of a hydraulic cylinder disassembly tool proposed in this utility model;

[0022] Figure 2 This is an exploded view of a hydraulic cylinder disassembly tool proposed in this utility model;

[0023] Figure 3 This is a partial structural isometric view of a hydraulic cylinder disassembly tool proposed in this utility model;

[0024] Figure 4 This is a partial structural isometric view of a hydraulic cylinder disassembly tool proposed in this utility model;

[0025] Figure 5 This is a partial exploded view of the hydraulic cylinder disassembly tool proposed in this utility model.

[0026] Legend:

[0027] 1. Socket sleeve; 101. Cross groove; 102. Socket groove; 103. Positioning rod; 2. Rotating disc; 201. Cross block; 202. Fixed handle; 203. Connecting groove; 3. Fastening block; 301. Threaded groove; 4. Connecting rod; 401. Thread mark; 402. Fixing bolt. Detailed Implementation

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

[0029] Reference Figure 2 , Figure 3 and Figure 5 This utility model provides a specific embodiment: a hydraulic cylinder disassembly tool, including a sleeve 1, a rotating disk 2, and multiple fastening blocks 3. Multiple cross grooves 101 are formed on the edge of the upper surface of the sleeve 1. The rotating disk 2 is fitted onto the outside of the sleeve 1. Multiple cross blocks 201 are fixedly connected to the edge of the inner wall of the rotating disk 2. The lower surface of each cross block 201 is tightly fitted to the inner bottom surface of the cross groove 101. A sleeve groove 102 is formed in the middle of the lower surface of the sleeve 1. Multiple positioning rods 103 are fixedly connected to the edge of the inner top surface of the sleeve groove 102. The outer wall of each fastening block 3 near the center of the sleeve 1 is tightly fitted to the outer wall of the sleeve 1. A threaded groove 301 is formed in the middle of the outer wall of each fastening block 3 near the center of the sleeve 1. A connecting groove 203 is formed on the outer wall of the rotating disk 2. A connecting rod 4 is provided inside each connecting groove 203. The outer wall of the connecting rod 4 near the center of the sleeve 1 is threaded to the inner wall of the threaded groove 301. The outer wall of the connecting rod 4 away from the center of the sleeve 1 is threaded with fixing bolts 402. The outer wall of the fixing bolts 402 near the center of the sleeve 1 is tightly fitted to the outer wall of the rotating disk 2. Through the cooperation between the rotating disk 2 and the sleeve 1, and the fixing of the fastening block 3 and the connecting rod 4, a fast and stable disassembly process is achieved, improving work efficiency. The sliding fit design of the cross block 201 and the cross groove 101, and the precise cooperation between the positioning rod 103 and the cylinder head positioning groove, ensure accurate positioning during disassembly, avoiding damage to the cylinder components. Furthermore, the tight fit between the sleeve groove 102 and the outer wall of the cylinder head, and the stable connection between the connecting rod 4 and the connecting groove 203, provide a stable operating environment, reducing shaking and displacement during disassembly.

[0030] Reference Figure 1 , Figure 2 and Figure 4The outer wall of the cross block 201 slides and fits against the inner wall of the cross groove 101. The sliding fit design of the cross block 201 and the cross groove 101 ensures precise positioning during disassembly. The inner wall of the sleeve groove 102 fits tightly against the outer wall of the cylinder head. The outer wall of the positioning rod 103 fits tightly against the positioning groove at the upper end of the cylinder head. This design provides a stable operating environment for the operator and reduces shaking and displacement during disassembly. The outer wall of the connecting rod 4 fits tightly against the inner wall of the connecting groove 203. The tight fit reduces the gap at the connection and enhances the overall rigidity of the structure, so that the disassembly tool can remain stable when subjected to a large load. The outer walls on both sides of the connecting rod 4 are provided with thread marks 401, which are used to connect with the thread groove 301 and the fixing bolt 402 respectively. The middle of both sides of the outer wall of the rotating disk 2 is fixedly connected with a fixed handle 202, which makes it easy for the operator to rotate the rotating disk 2.

[0031] Working principle: First, securely fit the sleeve 1 onto the cylinder, adjust the positioning rod 103 to ensure precise engagement with the positioning groove on the cylinder cover, and simultaneously confirm that the sleeve groove 102 is tightly fitted to the outer wall of the cylinder cover, providing a stable foundation for subsequent operations. Next, smoothly fit the rotating disk 2 onto the outside of the sleeve 1, carefully adjust it so that the cross block 201 corresponds one-to-one with the cross groove 101, and insert it into the bottom of the cross groove 101, ensuring that the two are tightly fitted. Then, tightly fit the outer wall of the fastening block 3 near the center of the sleeve 1 to the outer wall of the sleeve 1, and thread it to the connecting rod 4 through the threaded groove 301. At the same time, ensure that the outer wall of the connecting rod 4 away from the center of the sleeve 1 is firmly connected to the connecting groove 203 of the rotating disk 2 through the fixing bolt 402. Finally, the operator holds the fixing handle 202 and smoothly rotates the rotating disk 2. With the precise engagement of the cross block 201 and the cross groove 101, the cylinder cover can be quickly and stably disassembled.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool for disassembling hydraulic cylinders, comprising a sleeve (1), a rotating disc (2), and a plurality of fastening blocks (3), characterized in that: Multiple cross grooves (101) are provided on the edge of the upper surface of the sleeve (1). The rotating disk (2) is fitted on the outside of the sleeve (1). Multiple cross blocks (201) are fixedly connected to the edge of the inner wall of the rotating disk (2). The lower surface of the cross blocks (201) is tightly fitted to the inner bottom surface of the cross grooves (101). A sleeve groove (102) is provided in the middle of the lower surface of the sleeve (1). Multiple positioning rods (103) are fixedly connected to the edge of the inner top surface of the sleeve groove (102). The outer wall of the fastening block (3) on the side near the center of the sleeve (1) is tightly fitted to the outer wall of the sleeve (1). The fastening block (3) has a threaded groove (301) on the middle part of the outer wall near the center of the sleeve (1), and the outer wall of the rotating disk (2) has a connecting groove (203). The connecting groove (203) is provided with a connecting rod (4). The outer wall of the connecting rod (4) near the center of the sleeve (1) is threaded to the inner wall of the threaded groove (301). The outer wall of the connecting rod (4) away from the center of the sleeve (1) is threaded with a fixing bolt (402). The outer wall of the fixing bolt (402) near the center of the sleeve (1) is tightly fitted to the outer wall of the rotating disk (2).

2. The hydraulic cylinder disassembly tool according to claim 1, characterized in that: The outer walls of the cross blocks (201) are all slidably fitted to the inner walls of the cross grooves (101).

3. The hydraulic cylinder disassembly tool according to claim 1, characterized in that: The inner wall of the sleeve groove (102) is tightly fitted to the outer wall of the cylinder head, and the outer wall of the positioning rod (103) is tightly fitted to the positioning groove at the upper end of the cylinder head.

4. The hydraulic cylinder disassembly tool according to claim 1, characterized in that: The outer wall of the connecting rod (4) is in close contact with the inner wall of the connecting groove (203).

5. The hydraulic cylinder disassembly tool according to claim 1, characterized in that: The outer walls on both sides of the connecting rod (4) are provided with thread marks (401).

6. The hydraulic cylinder disassembly tool according to claim 1, characterized in that: Fixed handles (202) are fixedly connected to the middle of both sides of the outer wall of the rotating disk (2).