A maintenance aid for pressurized oil cylinder

By designing a maintenance aid for pressure cylinders, components such as screws, handles, and circular plates are used to achieve the limiting of pressure cylinders and the precise installation of jacks, solving the problem of scratches during the installation of pressure cylinder inner liner and improving the safety and reliability of installation.

CN224390431UActive Publication Date: 2026-06-23GUANGXI LINGLONG TIRE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI LINGLONG TIRE CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The current method of installing the inner liner of a pressure cylinder is too forceful, which makes the inner wall easily scratched.

Method used

Design a hydraulic cylinder repair assist tool, including a base, connecting frame, connecting rod, jack, pressure block and limiting mechanism. Through components such as screw, handle, circular plate and rotating block, the hydraulic cylinder is limited and the jack is installed accurately, avoiding scratches on the inner liner.

Benefits of technology

This allows for precise installation of the pressurized cylinder inner liner, avoiding scratches on the inner wall and improving the safety and reliability of the installation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224390431U_ABST
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Abstract

The utility model belongs to maintenance power tool technical field, concretely relates to a kind of pressurized cylinder maintenance power tool, including base, the outside of base is fixedly connected with first connecting frame, the outside of first connecting frame is fixedly connected with connecting rod, the upper end of base is fixedly connected with second connecting frame, second connecting frame is fixedly connected with connecting rod, the upper end of base is contacted with pressurized cylinder, the upper end of pressurized cylinder is contacted with pressure block.The utility model passes through design first connecting frame, connecting rod, second connecting frame, pressurized cylinder, pressure block and jack etc. component, start jack, the output shaft of jack is contacted to second connecting frame upwards, and then make pressure block move downwards, pressure block moves downwards to make the inner bag of pressurized cylinder move downwards, after the inner bag of pressurized cylinder moves downwards to specified position in pressurized cylinder, then make pressurized cylinder get installation maintenance, prevent the scratch of pressurized cylinder inner wall.
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Description

Technical Field

[0001] This utility model relates to the field of maintenance assistance tools, specifically a maintenance assistance tool for a pressure cylinder. Background Technology

[0002] A hydraulic cylinder is a device that achieves linear motion through hydraulic principles. It typically uses pressurized hydraulic fluid to drive a piston in a reciprocating motion within the cylinder. A hydraulic cylinder generally consists of a cylinder body, piston, sealing elements, and hydraulic lines. Its main function is to convert hydraulic energy into mechanical energy, thereby enabling various mechanical devices to perform functions such as movement, positioning, and clamping. Hydraulic cylinders are widely used in various industrial fields, such as machinery manufacturing, construction, shipbuilding, and aerospace. However, in current technology, the inner liner of hydraulic cylinders is installed using a forklift, a forceful installation method that easily leads to scratches on the inner wall of the cylinder. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide a tool to assist in the maintenance of pressure cylinders, which solves the problem that the installation of the inner liner of pressure cylinders is usually done by using a forklift to press the inner liner in, which is a violent installation and causes the inner wall of the pressure cylinder to be easily scratched.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder repair assist tool, comprising a base, a first connecting frame fixedly connected to the outer side of the base, a connecting rod fixedly connected to the outer side of the first connecting frame, a second connecting frame fixedly connected to the upper end of the base, the second connecting frame being fixedly connected to the connecting rod, a hydraulic cylinder contacting the upper end of the base, a pressure block contacting the upper end of the hydraulic cylinder, a jack contacting the upper end of the pressure block, the upper end of the jack contacting the second connecting frame, a connecting block fixedly connected to the lower end of the jack, the connecting block contacting the pressure block, a connecting mechanism being provided inside the pressure block, and a limit mechanism being provided at the upper end of the base.

[0005] Preferably, the connecting mechanism includes a connecting groove. The connecting block has a connecting groove inside, and a sliding rod is slidably connected inside the connecting groove. A pull block is fixedly connected to the end of the sliding rod away from the connecting groove, and the pull block contacts a pressure block. A support block is fixedly connected to the outside of the sliding rod. A guide rod is slidably connected inside the support block, and a spring is provided on the outside of the guide rod. The pressure block is fixedly connected to the guide rod, and a retaining groove is provided inside the pressure block, which is slidably connected to the sliding rod. By pulling the sliding rod, after it moves to a designated position, a jack moves the connecting block and the connecting groove to a designated position on the pressure block. Then, the sliding rod is moved into the connecting groove, thereby connecting the pressure block and the jack, making the device easy to use.

[0006] Preferably, one end of the spring is fixedly connected to the support block, and the other end of the spring is fixedly connected to the pressure block. By designing the spring, the support block has an elastic force.

[0007] Preferably, the slot has an elastic block inside, which is fixedly connected to the slide rod. By designing the elastic block, the slide rod can be limited.

[0008] Preferably, the limiting mechanism includes a screw, which is threadedly connected to the interior of the second connecting frame. A handle is fixedly connected to the screw, and a circular plate is fixedly connected to the screw. A rotating block is fixedly connected to the circular plate, and a connecting sleeve is rotatably connected to the outer side of the rotating block. The circular plate contacts the connecting sleeve, and a bolt is threadedly connected to the interior of the connecting sleeve. A clamping plate is fixedly connected to the connecting sleeve, and the base contacts the clamping plate. A clamping sponge is fixedly connected to the outer side of the clamping plate, and the clamping sponge contacts the base and the pressure cylinder. By rotating the screw, the screw rotates and creates a threaded movement with the second connecting frame. The rotation of the screw drives the clamping plate and clamping sponge to move, causing the clamping sponge to contact the pressure cylinder, thereby limiting the pressure cylinder and preventing it from shifting.

[0009] Preferably, the rotating block has an annular groove inside, and a bolt is slidably connected inside the annular groove. By designing the annular groove, the bolt can slide inside the annular groove.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model designs components such as a screw, handle, circular plate, rotating block, connecting sleeve, and bolt. When the screw is rotated, it causes a threaded movement with the second connecting frame. The rotation of the screw drives the clamping plate and clamping sponge to move. The clamping sponge moves and contacts the pressure cylinder, thereby limiting the pressure cylinder and preventing it from shifting.

[0012] 2. This utility model incorporates components such as a connecting groove, sliding rod, pull block, support block, guide rod, and spring. By pulling the sliding rod to a designated position, the jack moves the connecting block and connecting groove to a designated position on the pressure block. Then, the sliding rod is moved into the connecting groove, thereby connecting the pressure block and the jack, making the device easy to use.

[0013] 3. This utility model designs components such as a first connecting frame, a connecting rod, a second connecting frame, a pressure cylinder, a pressure block, and a jack. When the jack is activated, its output axis contacts the second connecting frame, causing the pressure block to move downwards. This downward movement of the pressure block causes the inner liner of the pressure cylinder to move downwards. Once the inner liner of the pressure cylinder moves to a designated position within the pressure cylinder, the pressure cylinder can be installed and maintained, preventing scratches on the inner wall of the pressure cylinder. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Partial sectional perspective view of the structure;

[0016] Figure 3 This utility model Figure 1 A front sectional view;

[0017] Figure 4 This utility model Figure 3 Enlarged view of the connection block;

[0018] Figure 5 This utility model Figure 2 Enlarged view of the clamping plate.

[0019] In the diagram: 1. Base; 2. First connecting frame; 3. Connecting rod; 4. Second connecting frame; 5. Pressurizing cylinder; 6. Pressure block; 7. Jack; 8. Connecting block; 9. Connecting mechanism; 91. Connecting groove; 92. Slide rod; 93. Pulling block; 94. Support block; 95. Guide rod; 96. Spring; 97. Slot; 98. Elastic locking block; 10. Limiting mechanism; 101. Screw; 102. Handle; 103. Circular plate; 104. Rotating block; 105. Connecting sleeve; 106. Bolt; 107. Annular groove; 108. Clamping plate; 109. Clamping sponge. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5A hydraulic cylinder repair assist tool includes a base 1, a first connecting frame 2 fixedly connected to the outer side of the base 1, a connecting rod 3 fixedly connected to the outer side of the first connecting frame 2, a second connecting frame 4 fixedly connected to the upper end of the base 1, the second connecting frame 4 being fixedly connected to the connecting rod 3, a hydraulic cylinder 5 contacting the upper end of the base 1, a pressure block 6 contacting the upper end of the hydraulic cylinder 5, a jack 7 contacting the upper end of the pressure block 6, the upper end of the jack 7 contacting the second connecting frame 4, a connecting block 8 fixedly connected to the lower end of the jack 7, the connecting block 8 contacting the pressure block 6, a connecting mechanism 9 being provided inside the pressure block 6, and a limit mechanism 10 being provided at the upper end of the base 1.

[0022] Please see Figure 4 The connecting mechanism 9 includes a connecting groove 91. The connecting block 8 has a connecting groove 91 inside. A slide rod 92 is slidably connected inside the connecting groove 91. A pull block 93 is fixedly connected to the end of the slide rod 92 away from the connecting groove 91. The pull block 93 contacts the pressure block 6. A support block 94 is fixedly connected to the outside of the slide rod 92. A guide rod 95 is slidably connected inside the support block 94. A spring 96 is provided on the outside of the guide rod 95. One end of the spring 96 is fixedly connected to the support block 94, and the other end of the spring 96 is fixedly connected to the pressure block 6. By designing the spring 96, the support block 94 has an elastic force. The pressure block 6 is fixedly connected to the guide rod 95. The pressure block 6 has a slot 97 inside, and an elastic block 98 is engaged inside the slot 97. The elastic block 98 is fixedly connected to the slide rod 92. By designing the elastic block 98, the slide rod 92 can be limited. The pressure block 6 and the slide rod 92 are slidably connected. By pulling the slide rod 92, after the slide rod 92 moves to the designated position, the jack 7 moves the connecting block 8 and the connecting groove 91 to the designated position on the pressure block 6. Then the slide rod 92 is moved into the connecting groove 91, thereby connecting the pressure block 6 and the jack 7, making the device easy to use.

[0023] Please see Figure 1 , Figure 2 , Figure 5The limiting mechanism 10 includes a screw 101. The screw 101 is threadedly connected to the inside of the second connecting frame 4. A handle 102 is fixedly connected to the screw 101. A circular plate 103 is fixedly connected to the screw 101. A rotating block 104 is fixedly connected to the circular plate 103. A connecting sleeve 105 is rotatably connected to the outside of the rotating block 104. The circular plate 103 contacts the connecting sleeve 105. A bolt 106 is threadedly connected to the inside of the connecting sleeve 105. An annular groove 107 is formed inside the rotating block 104. The bolt 106 is slidably connected inside the annular groove 107. By designing the annular groove 107, the bolt 106 can be slidably connected. 06 slides within the annular groove 107. A clamping plate 108 is fixedly connected to the connecting sleeve 105. The base 1 contacts the clamping plate 108. A clamping sponge 109 is fixedly connected to the outer side of the clamping plate 108. The clamping sponge 109 contacts the base 1 and the pressurizing cylinder 5. By rotating the screw 101, the screw 101 rotates and causes threaded movement with the second connecting frame 4. The rotation of the screw 101 drives the clamping plate 108 and the clamping sponge 109 to move. The clamping sponge 109 moves and contacts the pressurizing cylinder 5, thereby limiting the pressurizing cylinder 5 and preventing the pressurizing cylinder 5 on the device from shifting.

[0024] The specific implementation process of this utility model is as follows: Before using the device, the pressure cylinder 5 is positioned at the designated position on the base 1. Then, the handle 102 is rotated. The rotation of the handle 102 drives the screw 101 to rotate. The rotation of the screw 101 causes threaded movement with the second connecting frame 4, thereby causing the screw 101 to generate relative displacement. The rotation of the screw 101 drives the circular plate 103, the connecting sleeve 105, and the bolt 106 to move. The movement of the connecting sleeve 105 drives the clamping plate 108 to move. The movement of the clamping plate 108 drives the clamping sponge 109 to move. The movement of the clamping sponge 109 contacts the pressure cylinder 5, thereby limiting the pressure cylinder 5 and preventing the pressure cylinder 5 on the device from shifting.

[0025] When the pressure block 6 and the jack 7 need to be connected, pull the pull block 93 to move away from the pressure block 6. The movement of the pull block 93 causes the slide rod 92 to move, which in turn causes the elastic locking block 98 and the support block 94 to move. The elastic locking block 98 moves out of the slot 97, and the support block 94 moves to compress the spring 96. After the slide rod 92 moves to the designated position, the jack 7 moves the connecting block 8 and the connecting groove 91 to the designated position on the pressure block 6. Then, release the pull block 93. The elastic force of the spring 96 pushes the support block 94 to move, which in turn causes the slide rod 92 to move. The slide rod 92 moves the elastic locking block 98 and other components to move. The slide rod 92 moves into the connecting groove 91, which causes the elastic locking block 98 to engage in the slot 97, thus connecting the pressure block 6 and the jack 7 and making the device easy to use.

[0026] When the device is in use, move the pressure block 6, jack 7, and connecting block 8. The pressure block 6 moves to the designated position on the pressure cylinder 5. Start the jack 7. The output shaft of the jack 7 contacts the second connecting frame 4, which causes the pressure block 6 to move downward. The downward movement of the pressure block 6 causes the inner liner of the pressure cylinder 5 to move downward. After the inner liner of the pressure cylinder 5 moves downward to the designated position inside the pressure cylinder 5, the pressure cylinder 5 can be installed and maintained, preventing scratches on the inner wall of the pressure cylinder 5.

[0027] 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 hydraulic cylinder maintenance assistance tool, comprising a base (1), characterized in that: A first connecting frame (2) is fixedly connected to the outer side of the base (1), and a connecting rod (3) is fixedly connected to the outer side of the first connecting frame (2). A second connecting frame (4) is fixedly connected to the upper end of the base (1). The second connecting frame (4) is fixedly connected to the connecting rod (3). A pressure cylinder (5) is in contact with the upper end of the base (1). A pressure block (6) is in contact with the upper end of the pressure cylinder (5). A jack (7) is in contact with the upper end of the pressure block (6). The upper end of the jack (7) is in contact with the second connecting frame (4). A connecting block (8) is fixedly connected to the lower end of the jack (7). The connecting block (8) is in contact with the pressure block (6). A connecting mechanism (9) is provided inside the pressure block (6). A limit mechanism (10) is provided at the upper end of the base (1).

2. The hydraulic cylinder maintenance assistive tool according to claim 1, characterized in that: The connecting mechanism (9) includes a connecting groove (91). The connecting block (8) has a connecting groove (91) inside. A slide rod (92) is slidably connected inside the connecting groove (91). A pull block (93) is fixedly connected to one end of the slide rod (92) away from the connecting groove (91). The pull block (93) contacts the pressure block (6). A support block (94) is fixedly connected to the outside of the slide rod (92). A guide rod (95) is slidably connected inside the support block (94). A spring (96) is provided on the outside of the guide rod (95). The pressure block (6) is fixedly connected to the guide rod (95). A slot (97) is opened inside the pressure block (6). The pressure block (6) is slidably connected to the slide rod (92).

3. The hydraulic cylinder maintenance assistive tool according to claim 2, characterized in that: One end of the spring (96) is fixedly connected to the support block (94), and the other end of the spring (96) is fixedly connected to the pressure block (6).

4. The hydraulic cylinder maintenance assistive tool according to claim 2, characterized in that: The slot (97) is fitted with an elastic block (98), which is fixedly connected to the slide rod (92).

5. The hydraulic cylinder maintenance assistive tool according to claim 1, characterized in that: The limiting mechanism (10) includes a screw (101), and the screw (101) is threadedly connected to the inside of the second connecting frame (4). A handle (102) is fixedly connected to the screw (101), and a circular plate (103) is fixedly connected to the screw (101). A rotating block (104) is fixedly connected to the circular plate (103), and a connecting sleeve (105) is rotatably connected to the outer side of the rotating block (104). 3) Contact with the connecting sleeve (105), the inside of the connecting sleeve (105) is connected with a bolt (106) by a thread, the connecting sleeve (105) is fixedly connected with a clamping plate (108), the base (1) is in contact with the clamping plate (108), the outside of the clamping plate (108) is fixedly connected with a clamping sponge (109), the clamping sponge (109) is in contact with the base (1), and the clamping sponge (109) is in contact with the pressurizing cylinder (5).

6. The hydraulic cylinder maintenance assistive tool according to claim 5, characterized in that: The rotating block (104) has an annular groove (107) inside, and a bolt (106) is slidably connected inside the annular groove (107).