Hydraulic cylinder convenient to disassemble and clean

By introducing a mounting base plate, limit cover, and return spring into the hydraulic cylinder, the disassembly process of the hydraulic cylinder is simplified, solving the problem of time-consuming and labor-intensive disassembly of traditional hydraulic cylinders, and improving disassembly efficiency and cleaning convenience.

CN223894610UActive Publication Date: 2026-02-10CHANGZHOU AOSAILIN HYDRAULIC & PNEUMATIC COMPONENTS CO LTD
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Patent Information

Application Number
CN202520230980.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-02-10
Estimated Expiration
2035-02-13

AI Technical Summary

Technical Problem

Traditional hydraulic cylinders use a complex bolt connection between the cylinder barrel and the end cap. The large number of bolts makes disassembly time-consuming and labor-intensive, increasing maintenance costs. Furthermore, the limited space makes it difficult to operate tools, further increasing the difficulty of disassembly.

Method used

The structure adopts a mounting base plate, a limiting cover, a supporting half tube, and a return spring. The sliding connection between the limiting cover and the mounting base plate simplifies the disassembly process, the supporting half tube increases stability, and the return spring enables quick disassembly.

Benefits of technology

It enables rapid disassembly and cleaning of hydraulic cylinders, reduces maintenance costs, improves work efficiency, and solves the operational challenges in confined spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a hydraulic cylinder convenient to disassemble and clean, which belongs to the technical field of hydraulic cylinders and comprises a mounting bottom plate, a cylinder body is fixedly mounted at the top of the mounting bottom plate, a limiting cover is slidably mounted at the top of the mounting bottom plate, and a supporting half pipe is fixedly mounted at the top of the limiting cover. The inner side wall of the supporting half pipe makes contact with the surface of the cylinder body, three reinforcing rib plates are fixedly installed on the top of the limiting cover and evenly distributed on the top of the limiting cover, and one side of each reinforcing rib plate is fixedly connected with the surface of the supporting half pipe. According to the hydraulic cylinder convenient to disassemble and clean, the mounting bottom plate is clamped in the two limiting covers, the mounting bottom plate at the bottom of the cylinder body of the hydraulic cylinder is limited, the cylinder body is supported through the supporting half pipes, the mounting stability of the hydraulic cylinder is improved, when the hydraulic cylinder needs to be cleaned, the two limiting covers are moved towards the two sides, and the hydraulic cylinder is convenient to disassemble; and cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a hydraulic cylinder that is easy to disassemble and clean. Background Technology

[0002] A hydraulic cylinder, also known as a hydraulic actuator, is a hydraulic component that converts hydraulic energy into mechanical energy. The hydraulic cylinder uses fluid pressure to act on a piston or plunger, causing the piston or plunger to move linearly within the cylinder, thereby outputting force and displacement. A hydraulic cylinder mainly consists of a cylinder barrel, piston, piston rod, sealing device, buffer device, and venting device. Based on the mode of motion, it can be divided into linear reciprocating motion type and rotary swing type; based on the hydraulic pressure applied, it can be divided into single-acting type and double-acting type; based on the structural form, it can be divided into piston type, plunger type, multi-stage telescopic sleeve type, gear and rack type, etc.; based on the installation method, it can be divided into tie rod, clevis, foot, hinge shaft, etc.

[0003] Hydraulic cylinders are widely used in many fields such as machinery manufacturing, engineering construction, and metallurgy as key actuators in hydraulic systems due to their advantages such as simple structure, reliable operation, no transmission backlash, and smooth movement.

[0004] After prolonged use, the piston, piston rod, and other parts inside a hydraulic cylinder accumulate a large amount of oil, impurities, and wear debris, requiring cleaning. However, traditional hydraulic cylinders typically use complex bolt connections between the cylinder barrel and end cap, with a large number of bolts. During disassembly, operators need to spend a lot of time and effort to unscrew each bolt, which not only increases maintenance costs but also reduces work efficiency. Furthermore, in some confined work spaces, the tools cannot be used effectively, further increasing the difficulty of disassembly. Therefore, this application proposes a hydraulic cylinder that is easy to disassemble and clean. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a hydraulic cylinder that is easy to disassemble and clean. It has the advantages of being easy to disassemble and clean the hydraulic cylinder, and solves the problem that traditional hydraulic cylinders usually use a complex bolt connection between the cylinder barrel and the end cover, and there are many bolts. During disassembly, operators need to spend a lot of time and effort to unscrew each bolt one by one. This not only increases maintenance costs but also reduces work efficiency. Moreover, in some narrow work spaces, the operating tools cannot be used properly, which further increases the difficulty of disassembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder that is easy to disassemble and clean, comprising a mounting base plate, a cylinder body fixedly mounted on the top of the mounting base plate, a limit cover slidably mounted on the top of the mounting base plate, a support half-tube fixedly mounted on the top of the limit cover, the inner sidewall of the support half-tube contacting the surface of the cylinder body, and three reinforcing ribs fixedly mounted on the top of the limit cover, the three reinforcing ribs being evenly distributed on the top of the limit cover, one side of each reinforcing rib being fixedly connected to the surface of the support half-tube.

[0007] Furthermore, a reserved hole is provided on one side of the support half-pipe, and the reserved holes on the two sides of the support half-pipe form a circular hole, which is aligned with the oil inlet of the cylinder.

[0008] Furthermore, a piston rod is slidably mounted on the top of the cylinder, and a top plate is fixedly mounted on the top end of the piston rod.

[0009] Furthermore, an installation block is fixedly installed on one side of the limiting cover, and an installation rod is fixedly installed on one side of the installation block. The limiting cover has an L-shaped cross-section, and the inner top wall of the limiting cover contacts the top of the mounting base plate, while the inner side wall of the limiting cover contacts the side of the mounting base plate.

[0010] Furthermore, a mounting plate is slidably mounted on the surface of the mounting rod, and a fixed base plate is fixedly mounted on one side of the mounting plate.

[0011] Furthermore, the top of the fixed base plate is threaded with three mounting bolts, and a return spring is fixedly installed between the limit cover and the mounting plate.

[0012] Furthermore, the reset spring is sleeved on the surface of the mounting rod, and a limiting end plate is fixedly installed at one end of the mounting rod. The limiting end plate is located on the side of the two mounting plates that are far apart from each other.

[0013] Compared with the prior art, this utility model provides a hydraulic cylinder that is easy to disassemble and clean, and has the following beneficial effects:

[0014] This easy-to-disassemble and clean hydraulic cylinder uses a mounting base plate that is locked inside two limiting covers to restrict the mounting base plate at the bottom of the cylinder body. A supporting half-pipe further supports the cylinder body, increasing the stability of the hydraulic cylinder installation. When cleaning is required, the two limiting covers are moved to the sides, facilitating the removal of the hydraulic cylinder for cleaning. This design solves the problem of traditional hydraulic cylinders where the cylinder barrel and end cover typically use complex bolt connections with a large number of bolts. During disassembly, operators need to spend a significant amount of time and effort unscrewing each bolt, which not only increases maintenance costs and reduces work efficiency but also further complicates disassembly in confined workspaces where tools cannot be used effectively. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a top sectional view of the structure of this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the limiting cover of this utility model.

[0019] In the diagram: 1. Mounting base plate; 2. Cylinder body; 3. Limiting cover; 31. Mounting block; 4. Support half tube; 5. Reinforcing rib plate; 6. Reserved hole; 7. Piston rod; 8. Top plate; 9. Mounting rod; 10. Mounting upright plate; 11. Fixed base plate; 12. Mounting bolt; 13. Return spring; 14. Limiting end plate. 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] Example 1: Please refer to Figures 1 to 4 A hydraulic cylinder designed for easy disassembly and cleaning includes a mounting base plate 1. A cylinder body 2 is fixedly mounted on the top of the mounting base plate 1. A limit cover 3 is slidably mounted on the top of the mounting base plate 1. A support half-tube 4 is fixedly mounted on the top of the limit cover 3. The inner wall of the support half-tube 4 contacts the surface of the cylinder body 2. Three reinforcing ribs 5 are fixedly mounted on the top of the limit cover 3, evenly distributed on the top of the limit cover 3. One side of each reinforcing rib 5 is fixedly connected to the surface of the support half-tube 4. The support half-tube 4 supports the side of the cylinder body 2, enhancing its stability, while the reinforcing ribs 5 provide reinforced support to the support half-tube 4.

[0022] When it is necessary to disassemble the hydraulic cylinder, slide the limit cover 3 to both sides to loosen the mounting base plate 1 and the support half tube 4, so as to remove the hydraulic cylinder and clean it.

[0023] One side of the support half-pipe 4 has a reserved hole 6, and the reserved holes 6 on the two sides of the support half-pipe 4 form a circular hole. The reserved hole 6 is aligned with the oil inlet of the cylinder 2. This allows the oil inlet to extend through the reserved hole 6, preventing the oil inlet from being blocked.

[0024] Secondly, a piston rod 7 is slidably mounted on the top of the cylinder 2, and a top plate 8 is fixedly mounted on the top of the piston rod 7.

[0025] Meanwhile, a mounting block 31 is fixedly installed on one side of the limiting cover 3, and a mounting rod 9 is fixedly installed on one side of the mounting block 31. The limiting cover 3 has an L-shaped cross-section, and the inner top wall of the limiting cover 3 contacts the top of the mounting base plate 1, while the inner side wall of the limiting cover 3 contacts the side of the mounting base plate 1. The limiting cover 3 presses the mounting base plate 1 onto the mounting surface.

[0026] The mounting rod 9 has a mounting plate 10 that is slidably mounted on its surface, and a fixed base plate 11 is fixedly mounted on one side of the mounting plate 10.

[0027] Example 2: Please refer to Figures 1 to 4 Based on Embodiment 1, three mounting bolts 12 are threaded onto the top of the fixed base plate 11, and a return spring 13 is fixedly installed between the limiting cover 3 and the mounting plate 10. The fixed base plate 11 is mounted on the mounting surface by the mounting bolts 12, and the limiting cover 3 and the mounting plate 10 are connected by the mounting rod 9, so that the limiting cover 3 slides along the mounting rod 9, allowing the mounting base plate 1 to be mounted on or released from the mounting surface. This eliminates the need for complex disassembly methods, improving disassembly efficiency and making cleaning more convenient.

[0028] The reset spring 13 is sleeved on the surface of the mounting rod 9. A limiting end plate 14 is fixedly installed at one end of the mounting rod 9, and the limiting end plate 14 is located on the side of the two mounting uprights 10 that are far apart from each other. The reset spring 13 pushes the limiting cover 3 towards the mounting base plate 1, so that the limiting cover 3 is locked onto the mounting base plate 1. When disassembling, the limiting cover 3 is moved to both sides, at which time the reset spring 13 is compressed. When installing, the limiting cover 3 is released.

[0029] In this embodiment, when in use, the two limiting covers 3 are moved to both sides, the mounting base plate 1 is placed between the two limiting covers 3, the two limiting covers 3 are released, and the return spring 13 pushes the limiting covers 3 towards the mounting base plate 1, so that the limiting covers 3 are locked onto the mounting base plate 1, and the mounting base plate 1 is locked onto the mounting surface. At the same time, the support half pipe 4 supports the side of the cylinder body 2, enhancing the stability of the cylinder body 2. When it is necessary to clean the hydraulic cylinder, the limiting covers 3 are pulled to both sides, the mounting base plate 1 is released, and the hydraulic cylinder is quickly disassembled for easy cleaning.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] 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 that is easy to disassemble and clean, comprising a mounting base plate (1), characterized in that: A cylinder (2) is fixedly installed on the top of the mounting base plate (1). A limit cover (3) is slidably installed on the top of the mounting base plate (1). A support half-tube (4) is fixedly installed on the top of the limit cover (3). The inner side wall of the support half-tube (4) is in contact with the surface of the cylinder (2). Three reinforcing ribs (5) are fixedly installed on the top of the limit cover (3). The three reinforcing ribs (5) are evenly distributed on the top of the limit cover (3). One side of the reinforcing ribs (5) is fixedly connected to the surface of the support half-tube (4).

2. The hydraulic cylinder for easy disassembly and cleaning according to claim 1, characterized in that: A reserved hole (6) is provided on one side of the support half pipe (4), and the reserved holes (6) on one side of the two support half pipes (4) form a round hole, and the reserved hole (6) is aligned with the oil inlet of the cylinder (2).

3. A hydraulic cylinder that is easy to disassemble and clean according to claim 1, characterized in that: A piston rod (7) is slidably mounted on the top of the cylinder (2), and a top plate (8) is fixedly mounted on the top of the piston rod (7).

4. A hydraulic cylinder that is easy to disassemble and clean according to claim 1, characterized in that: The limiting cover (3) has an installation block (31) fixedly installed on one side, and the installation block (31) has an installation rod (9) fixedly installed on one side. The limiting cover (3) has an L-shaped cross section. The inner top wall of the limiting cover (3) is in contact with the top of the mounting base plate (1), and the inner side wall of the limiting cover (3) is in contact with the side of the mounting base plate (1).

5. A hydraulic cylinder that is easy to disassemble and clean according to claim 4, characterized in that: The mounting rod (9) is slidably mounted with a mounting plate (10), and a fixed base plate (11) is fixedly mounted on one side of the mounting plate (10).

6. A hydraulic cylinder that is easy to disassemble and clean according to claim 5, characterized in that: The top of the fixed base plate (11) is threaded with three mounting bolts (12), and a return spring (13) is fixedly installed between the limit cover (3) and the mounting plate (10).

7. A hydraulic cylinder that is easy to disassemble and clean according to claim 6, characterized in that: The reset spring (13) is sleeved on the surface of the mounting rod (9), and a limiting end plate (14) is fixedly installed at one end of the mounting rod (9). The limiting end plate (14) is located on the side of the two mounting plates (10) that are far apart from each other.