A hydraulic cylinder cover that is easy to install and remove

By designing a cylinder cover with a rotating plate, teeth, and gear linkage structure, the problem of time-consuming and labor-intensive installation and disassembly of hydraulic cylinder covers was solved, enabling rapid installation and disassembly and improving operational efficiency.

CN224579579UActive Publication Date: 2026-07-31FOSHAN SHUNDE LIRUI MASCH MFG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN SHUNDE LIRUI MASCH MFG CO LTD
Filing Date
2025-09-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The installation and removal of existing hydraulic cylinder covers are time-consuming and labor-intensive, requiring repeated tightening of bolts.

Method used

A cylinder cover with a rotating plate, teeth, and gear linkage structure was designed. By rotating the rotating plate, multiple screws can be driven to rotate simultaneously. Combined with a compression spring and pressure block structure, the screws are ensured to be screwed into the screw holes quickly and accurately. A sealing ring is used to ensure sealing.

Benefits of technology

It enables rapid installation and removal of the cylinder head, reduces cumbersome operating steps, saves time and manpower, and improves installation efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224579579U_ABST
    Figure CN224579579U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of cylinder head technology, and more particularly to a cylinder head that is easy to install and disassemble. It includes a mounting cover with a central opening, an annular rotating plate coaxially arranged on the outer side of the mounting cover, an annular groove coaxially formed on the side of the rotating plate near the mounting cover, and a slider slidably mounted within the groove, the slider being fixed to the mounting cover. Multiple equidistant teeth are installed along the edge of the rotating plate, and a gear is provided along the outer side of the rotating plate. Several spaced connecting seats are installed on the outer wall of the mounting cover, each with a through hole. A screw is installed within the through hole, and a gear is coaxially mounted on the top of the screw. This utility model, through the linkage structure of the rotating plate, teeth, and gear, allows multiple screws to be rotated simultaneously by rotating only one rotating plate, achieving rapid fixing or loosening of the mounting cover and cylinder body. This significantly reduces the tedious operation of tightening bolts one by one, saving time and manpower.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cylinder head technology, and in particular to a cylinder head that is easy to install and disassemble. Background Technology

[0002] A hydraulic cylinder (also known as a hydraulic actuator) is an actuator in a hydraulic system that converts energy. Through the pressure transmission of hydraulic oil, it converts hydraulic energy into mechanical energy, driving equipment to complete linear reciprocating motion or oscillating movements. Its core functions include thrust output, speed regulation, and direction control.

[0003] Hydraulic cylinders are basically composed of a cylinder body, cylinder head, piston rod, and other structures. During installation, the cylinder head is usually fixed to the cylinder body with multiple bolts and other fasteners. This makes it necessary to repeatedly tighten the bolts to remove the cylinder head from the cylinder body when cleaning and maintaining the inside of the cylinder, which is time-consuming and laborious. To address this, we propose a cylinder head that is easy to install and remove. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a cylinder cover that is easy to install and disassemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cylinder cover that is easy to install and disassemble, including a mounting cover with an opening in the middle, an annular rotating plate coaxially provided on the outer side of the mounting cover, an annular sliding groove coaxially provided on the side of the rotating plate near the mounting cover, and a slider slidably installed in the sliding groove, the slider being fixed on the mounting cover.

[0006] Multiple teeth are installed at equal intervals along the edge of the rotating plate, and gears are provided along the outer side of the rotating plate. Several connecting seats are installed at intervals on the outer wall of the mounting cover. The connecting seats have through holes, and screws are installed in the through holes. A gear is coaxially installed on the top of the screw, and the gear meshes with the teeth.

[0007] Preferably, a handle is installed on the side of the rotating plate away from the mounting cover.

[0008] Preferably, a connecting bracket with an "L"-shaped bend at the end is provided on the side of the connecting seat away from the mounting cover. One end of the connecting bracket is fixed to the connecting seat, and a guide shaft slides through the other end of the connecting bracket. A pressure block is connected to the bottom of the guide shaft. The pressure block is located above the gear and directly opposite the middle of the gear. A compression spring is sleeved on the guide shaft. One end of the compression spring is fixed to the pressure block, and the other end of the compression spring is fixed to the connecting bracket.

[0009] Preferably, the compression block is a spherical elastic rubber block.

[0010] Preferably, the outer wall of the screw and the inner wall of the through hole are in clearance fit.

[0011] Preferably, a locking bolt is threaded onto the rotating plate, with the end of the locking bolt corresponding to the outer wall of the mounting cover.

[0012] Preferably, a sealing ring is provided along the inner edge of the mounting cover.

[0013] The design scheme proposed in this utility model has the following beneficial effects in application:

[0014] 1. This utility model, by setting a linkage structure of rotating plate, teeth and gears, only needs to rotate one rotating plate to drive multiple screws to rotate at the same time, realizing the quick fixing or loosening of the mounting cover and cylinder body, which significantly reduces the tedious operation of tightening each bolt one by one in the traditional way, saving time and manpower.

[0015] 2. This utility model uses a compression spring and pressure block structure to ensure that the screw is always subjected to downward pressure during rotation, thus ensuring that it is quickly and accurately screwed into the screw hole. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a cross-sectional front view of the present invention;

[0019] Figure 4 This is an installation effect diagram of this utility model.

[0020] In the diagram: 1. Mounting cover; 2. Rotating plate; 3. Slider; 4. Slide groove; 5. Gear; 6. Connecting seat; 7. Screw; 8. Gear; 9. Handle; 10. Connecting frame; 11. Guide shaft; 12. Pressure block; 13. Compression spring; 14. Locking bolt; 15. Sealing ring; 16. Through hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1

[0023] Reference Figures 1-4A cylinder cover that is easy to install and disassemble includes a mounting cover 1 with a central opening, an annular rotating plate 2 coaxially provided on the outer side of the mounting cover 1, an annular groove 4 coaxially provided on the side of the rotating plate 2 near the mounting cover 1, and a slider 3 slidably installed in the groove 4. The slider 3 is fixed on the mounting cover 1, allowing the rotating plate 2 to rotate freely on the mounting cover 1. In order to facilitate the control of the rotation of the rotating plate 2, a handle 9 is installed on the side of the rotating plate 2 away from the mounting cover 1.

[0024] Multiple teeth 5 are installed at equal intervals along the edge of the rotating plate 2, and gears 8 are provided along the outer side of the rotating plate 2. Several connecting seats 6 are installed on the outer wall of the mounting cover 1 at intervals. The connecting seats 6 have through holes 16, and screws 7 are installed in the through holes 16. Gears 8 are coaxially installed on the top of the screws 7. The gears 8 mesh with the teeth 5. As the rotating plate 2 rotates, the teeth 5 on the rotating plate 2 will act on the gears 8 around the rotating plate 2, thereby providing power for the rotation of the screws 7. In actual use, in order to ensure the stable rotation of the screws 7, there is a clearance fit between the outer wall of the screws 7 and the inner wall of the through holes 16 of the connecting seats 6.

[0025] Specifically, when mounting cover 1 is placed on the cylinder (e.g., Figure 4 When at the position indicated by the middle arrow A, it should be noted that a fixing seat corresponding to the connecting seat 6 is installed on the outer wall of the cylinder port (such as...). Figure 4 (As indicated by arrow B), the mounting base has screw holes corresponding to the screws 7. After the mounting cover 1 is placed on the port of the cylinder, the rotating plate 2 can be rotated by hand or by using a tool on the handle 9. As the rotating plate 2 rotates, the gear 8 will drive the screws 7 to rotate under the action of the teeth 5. In actual use, each screw 7 is of the same specification and has the same thread direction. As the screws 7 rotate, they will continuously rotate into the screw holes, thereby connecting and fixing the mounting cover 1 to the cylinder. The entire operation only requires rotating one rotating plate 2 to complete the connection operation of multiple screws 7, which provides convenience for the installation and removal of the mounting cover 1 on the cylinder.

[0026] After the mounting cover 1 is installed on the cylinder body and the screw 7 is turned into the screw hole, a locking bolt 14 is threaded onto the rotating plate 2. The end of the locking bolt 14 corresponds to the outer wall of the mounting cover 1. The locking bolt 14 can be rotated to press the end of the locking bolt 14 against the outer wall of the mounting cover 1, thereby locking the rotating plate 2 and preventing the rotating plate 2 from rotating accidentally during use, which would cause the screw 7 to loosen in the screw hole.

[0027] To ensure the sealing between the mounting cover 1 and the cylinder body, a sealing ring 15 is provided along the inner edge of the mounting cover 1. In actual use, a sealing gasket is also installed on the inner wall of the opening of the mounting cover 1 to ensure the sealing between the opening and the piston rod after the piston rod passes through the opening.

[0028] It should be noted that, in order to improve the effect of screw 7 in screw hole, a connecting bracket 10 with an "L"-shaped end is provided on the side of connecting seat 6 away from mounting cover 1. One end of connecting bracket 10 is fixed to connecting seat 6, and a guide shaft 11 slides through the other end of connecting bracket 10. A pressure block 12 is connected to the bottom of guide shaft 11. The pressure block 12 is located above gear 8 and directly opposite the middle of gear 8. A compression spring 13 is sleeved on guide shaft 11. One end of compression spring 13 is fixed to pressure block 12, and the other end of compression spring 13 is fixed to connecting bracket 10. In actual use, compression spring 13 is always kept in a compressed state, that is, compression spring 13 always applies pressure to screw 7 in the direction of connecting seat 6, so that when gear 8 rotates, screw 7 can be tightly attached to the end of screw hole, ensuring that screw 7 can be fully and quickly rotated into screw hole.

[0029] In order to further improve the contact effect between the screw 7 and the screw hole, the pressure block 12 is a spherical elastic rubber block.

[0030] Furthermore, the outer wall of the screw 7 is clearance-fitted with the inner wall of the through hole 16, ensuring that the screw 7 always remains coaxial with the screw hole during operation, and will not tilt due to shaking in the through hole 16, thus affecting its alignment with the screw hole.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cylinder head which is easy to mount and dismount, characterized in that: The device includes a mounting cover (1) with an opening in the middle, an annular rotating plate (2) is coaxially provided on the outside of the mounting cover (1), an annular groove (4) is coaxially provided on the side of the rotating plate (2) near the mounting cover (1), and a slider (3) is slidably installed in the groove (4), and the slider (3) is fixed on the mounting cover (1). Multiple teeth (5) are installed at equal intervals along the edge of the rotating plate (2). A gear (8) is provided along the outer side of the rotating plate (2). Several connecting seats (6) are installed on the outer wall of the mounting cover (1). A through hole (16) is provided on the connecting seat (6). A screw (7) is provided in the through hole (16). A gear (8) is coaxially installed on the top of the screw (7). The gear (8) meshes with the teeth (5).

2. The cylinder cover of claim 1, wherein: A handle (9) is installed on the side of the rotating plate (2) away from the mounting cover (1).

3. The cylinder cover of claim 1, wherein: A connecting bracket (10) with an "L"-shaped end is provided on the side of the connecting seat (6) away from the mounting cover (1). One end of the connecting bracket (10) is fixed on the connecting seat (6). A guide shaft (11) slides through the other end of the connecting bracket (10). A pressure block (12) is connected to the bottom of the guide shaft (11). The pressure block (12) is located above the gear (8) and directly opposite the middle of the gear (8). A compression spring (13) is sleeved on the guide shaft (11). One end of the compression spring (13) is fixed on the pressure block (12), and the other end of the compression spring (13) is fixed on the connecting bracket (10).

4. The cylinder cover of claim 1, wherein: The pressure block (12) is a spherical elastic rubber block.

5. The cylinder cover of claim 1, wherein: The outer wall of the screw (7) is clearance-fitted with the inner wall of the through hole (16).

6. The cylinder cover of claim 1, wherein: A locking bolt (14) is threaded onto the rotating plate (2), and the end of the locking bolt (14) corresponds to the outer wall of the mounting cover (1).

7. The easy-mounting and dismounting cylinder head according to claim 1, characterized in that: A sealing ring (15) is provided along the inner edge of the mounting cover (1).