Cylinder cover and cylinder barrel connecting structure

By designing structures such as screws, slots, conical rings, and limit rings, the problem of positional changes in the cylinder head and cylinder barrel connection structure after long-term operation is solved, achieving tight locking and convenient disassembly of the cylinder head and cylinder barrel, thus improving the performance of the hydraulic cylinder.

CN223608983UActive Publication Date: 2025-11-28AOBD HYDRAULIC TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202423233805.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2023-12-27
Filing Date
2024-12-26
Publication Date
2025-11-28
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

The existing cylinder head and cylinder barrel connection structure changes position after long-term operation, resulting in locking failure, decreased hydraulic cylinder performance, and inconvenience for disassembly, maintenance, and replacement.

Method used

The use of screws, grooves, conical rings, and limit rings ensures a tight lock between the cylinder head and cylinder, while the design of springs and sliding grooves simplifies the disassembly process.

Benefits of technology

This improved the tightness of the connection between the cylinder head and the cylinder barrel, facilitated maintenance and replacement, and enhanced the performance of the hydraulic cylinder.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hydraulic cylinders, and discloses a cylinder cover and cylinder barrel connecting structure which comprises a cylinder cover body, the top of the cylinder cover body is fixedly connected with a sealing assembly, the bottom of the sealing assembly is fixedly connected with a screw rod, clamping grooves are formed in the left side and the right side of the interior of the screw rod, and the bottom of the screw rod is fixedly connected with a conical ring. A screw rod is fixedly connected to the bottom of the conical ring, a limiting ring is fixedly connected to the bottom of the screw rod, a fixing ring is slidably connected to the outer portion of the conical ring, clamping balls are slidably connected to the left side and the right side of the bottom of the fixing ring, and a placement ring is slidably connected to the bottoms of the two clamping balls. According to the hydraulic cylinder, the cylinder cover body can be locked in the cylinder barrel body, the cylinder cover body and the cylinder barrel body can be connected more tightly, meanwhile, when the cylinder cover needs to be maintained and replaced, the cylinder cover can be conveniently and rapidly disassembled without the help of technical tools, and the performance of the hydraulic cylinder is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic cylinder technical field especially relates to a cylinder cover and cylinder barrel connecting structure. BACKGROUND

[0002] Hydraulic cylinder is the hydraulic energy into mechanical energy, does linear reciprocating motion's hydraulic actuating element, and the two main components of hydraulic cylinder are cylinder barrel and cylinder cover, they play a key role in the hydraulic system.

[0003] But the cylinder cover and cylinder barrel connecting structure of part of existing, in the specific use process, because the cylinder cover and cylinder barrel work for a long time, cause the position of cylinder cover and cylinder barrel change, cannot lock, cause hydraulic cylinder failure or performance decline, and inconvenient to disassemble to maintain and replace them, therefore, aiming at above the problem, present and put forward a kind of cylinder cover and cylinder barrel connecting structure. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a cylinder cover and cylinder barrel connecting structure, to improve the position of cylinder cover and cylinder barrel change in part of prior art, cannot lock, cause hydraulic cylinder failure or performance decline, and inconvenient to disassemble to maintain and replace them.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of cylinder cover and cylinder barrel connecting structure, including cylinder cover body, the top of the cylinder cover body is fixedly connected sealing assembly, the bottom of the sealing assembly is fixedly connected with screw rod, the inside left and right sides of the screw rod are all provided with clamping slot, the bottom of the screw rod is fixedly connected with conical ring, the bottom of the conical ring is fixedly connected with lead screw, the bottom of the lead screw is fixedly connected with limit ring, the outside of the conical ring is slidably connected with fixed ring, the bottom of the fixed ring left and right sides is slidably connected with ball, the bottom of two ball is slidably connected with installation ring, the outside of the screw rod is connected with cylinder barrel body with screw thread.

[0006] Further, the sealing assembly includes dustproof ring, the dustproof ring is fixedly connected at the top of the cylinder cover body, and the bottom of the dustproof ring is fixedly connected with sealing ring.

[0007] Further, the inside left and right sides of the cylinder barrel body are all provided with limit slot, the inside left and right sides of the cylinder barrel body are all slidably connected with clamping strip, the far side of two clamping strips is fixedly connected with gasket, the inside left and right sides of the cylinder barrel body are all provided with sliding slot, the inside of the sliding slot is provided with spring, the top of the clamping strip is fixedly connected with sliding rod, the inside left and right sides of the cylinder barrel body are all provided with sliding slot, and the inside of the cylinder cover body is slidably connected with piston rod.

[0008] Further, the outer part of the sliding rod is connected to the inner part of the sliding groove, and the outer part of the gasket is connected to the inner part of the sliding groove.

[0009] Further, the outer part of the piston rod is connected to the inner wall of the dustproof ring, and the inner part of the cylinder body is provided with a plurality of fixing grooves.

[0010] Further, one end of the spring is fixedly connected to the inner part of the sliding groove, and the other end of the spring is fixedly connected to the outer side wall of the gasket.

[0011] Further, the outer part of the clamping ball is connected to the inner part of the limiting groove, and the outer part of the clamping strip is connected to the inner part of the clamping groove.

[0012] Further, the outer part of the lead screw is threadedly connected to the inner part of the fixing ring and the locating ring, and the bottom of the locating ring is in contact with the top of the limiting ring.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] In the utility model, the cooperation of the screw rod, the clamping groove, the conical ring and the limiting ring enables the cylinder cover body to be locked inside the cylinder body, so that the cylinder cover body is more tightly connected with the cylinder body, and the cylinder cover can be conveniently and quickly disassembled without technical tools when maintenance and replacement of the cylinder cover are needed, thereby improving the performance of the hydraulic cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective view of a cylinder cover and cylinder connection structure is provided for the utility model;

[0016] Figure 2 A cylinder cover body structure schematic view of a cylinder cover and cylinder connection structure is provided for the utility model;

[0017] Figure 3 A cylinder body structure sectional view of a cylinder cover and cylinder connection structure is provided for the utility model;

[0018] Figure 4 A Figure 3 An enlarged view of A in the utility model.

[0019] Legend:

[0020] 1, cylinder cover body; 2, dustproof ring; 3, sealing ring; 4, screw rod; 5, clamping groove; 6, conical ring; 7, lead screw; 8, limiting ring; 9, fixing ring; 10, clamping ball; 11, locating ring; 12, cylinder body; 13, limiting groove; 14, clamping strip; 15, gasket; 16, spring; 17, sliding groove; 18, sliding rod; 19, sliding groove; 20, piston rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Referring to Figure 1 As shown in the utility model provides an embodiment: a cylinder head and cylinder barrel connecting structure, including cylinder head body 1, the top of cylinder head body 1 fixedly connected sealing assembly, sealing assembly includes dustproof ring 2, the design of dustproof ring 2 is to prevent the impurity dust in air into cylinder head body 1, dustproof ring 2 is fixedly connected at the top of cylinder head body 1, the bottom of dustproof ring 2 is fixedly connected with sealing ring 3, the bottom of sealing assembly is fixedly connected with screw rod 4, the design of screw rod 4 is to install cylinder head body 1.

[0023] Referring to Figure 2 As shown in the utility model provides an embodiment: a cylinder head and cylinder barrel connecting structure, including cylinder head body 1, the top of cylinder head body 1 fixedly connected sealing assembly, sealing assembly includes dustproof ring 2, the design of dustproof ring 2 is to prevent the impurity dust in air into cylinder head body 1, dustproof ring 2 is fixedly connected at the top of cylinder head body 1, the bottom of dustproof ring 2 is fixedly connected with sealing ring 3, the bottom of sealing assembly is fixedly connected with screw rod 4, the design of screw rod 4 is to install cylinder head body 1.

[0024] Referring to Figures 2-3As shown, the inside left and right sides of the cylinder body 12 are provided with limiting grooves 13, the outside of the clamping ball 10 is slidingly connected in the inside of the limiting groove 13, the clamping ball 10 is clamped with the limiting groove 13, the cylinder cover body 1 is locked, the inside left and right sides of the cylinder body 12 are slidingly connected with the clamping strip 14, the outside of the clamping strip 14 is slidingly connected in the inside of the clamping groove 5, the clamping strip 14 is clamped with the clamping groove 5, the cylinder cover body 1 is fixed, the far side of the two clamping strips 14 is fixedly connected with the gasket 15, the inside left and right sides of the cylinder body 12 are provided with sliding grooves 17, the outside of the gasket 15 is slidingly connected in the inside of the sliding groove 17, the inside of the sliding groove 17 is provided with the spring 16, the spring 16 is designed to provide elastic force, one end of the spring 16 is fixedly connected in the inside of the sliding groove 17, the other end of the spring 16 is fixedly connected to the outside wall of the gasket 15, the gasket 15 is designed to protect the spring 16, the top of the clamping strip 14 is fixedly connected with the sliding rod 18, the sliding rod 18 is designed to cancel the clamping of the clamping strip 14 and the clamping groove 5, the inside left and right sides of the cylinder body 12 are provided with sliding grooves 19, the outside of the sliding rod 18 is slidingly connected in the inside of the sliding groove 19, the inside of the cylinder cover body 1 is slidingly connected with the piston rod 20, the outside of the piston rod 20 is slidingly connected to the inner wall of the dustproof ring 2.

[0025] Working principle: when the staff needs to install the cylinder cover, rotate the cylinder cover body 1 downward, so that the screw rod 4 is threadedly connected with the cylinder body 12, when the screw rod 4 is lowered to the first fixed groove and clamped, the tapered ring 6 extrudes the clamping ball 10 in the inside of the fixed ring 9 and the placement ring 11, so that the clamping ball 10 is clamped with the limiting groove 13 in the inside of the cylinder body 12, thereby locking the cylinder cover body 1 and the cylinder body 12 at the same time, when the cylinder cover body 1 and the cylinder body 12 are locked, under the elastic force of the spring 16, the gasket 15 pushes the clamping strip 14 to clamp with the clamping groove 5 in the inside of the screw rod 4, thereby fixing the cylinder cover body 1, at the same time, under the action of the dustproof ring 2 and the sealing ring 3, the sealing property of the device is enhanced, when the cylinder cover body 1 needs to be disassembled, pull the sliding rod 18 outward, so that the sliding rod 18 moves in the inside of the sliding groove 19, drives the clamping strip 14 to compress the spring 16 to move in the inside of the sliding groove 17, thereby canceling the clamping, then rotating the cylinder cover body 1, so that the cylinder cover body 1 moves in the inside of the cylinder body 12, at the same time, the screw rod 7 moves in the inside of the fixed ring 9 and the placement ring 11, under the action of the limiting ring 8, the placement ring 11 will not fall off, thereby realizing the disassembly of the cylinder cover body 1, and maintaining and replacing it.

[0026] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A cylinder head and cylinder barrel connecting structure comprising a cylinder head body (1), characterized by: The top of the cylinder cover body (1) is fixedly connected with a sealing assembly, the bottom of the sealing assembly is fixedly connected with a screw rod (4), the left and right sides of the inside of the screw rod (4) are provided with clamping grooves (5), the bottom of the screw rod (4) is fixedly connected with a conical ring (6), the bottom of the conical ring (6) is fixedly connected with a lead screw (7), the bottom of the lead screw (7) is fixedly connected with a limiting ring (8), the outside of the conical ring (6) is slidably connected with a fixed ring (9), the bottom of the fixed ring (9) is slidably connected with clamping balls (10) on the left and right sides, the bottom of the two clamping balls (10) is slidably connected with a placing ring (11), and the outside of the screw rod (4) is threadedly connected with a cylinder body (12).

2. The cylinder head and cylinder barrel connecting structure according to claim 1, characterized by: The sealing assembly comprises a dustproof ring (2), and the dustproof ring (2) is fixedly connected to the top of the cylinder cover body (1); and the bottom of the dustproof ring (2) is fixedly connected with a sealing ring (3).

3. The cylinder head and cylinder barrel connecting structure according to claim 2, characterized by: The left and right sides of the inside of the cylinder body (12) are provided with limiting grooves (13), and the left and right sides of the inside of the cylinder body (12) are slidably connected with clamping strips (14); the far sides of the two clamping strips (14) are fixedly connected with gaskets (15); the left and right sides of the inside of the cylinder body (12) are provided with sliding grooves (17), and the inside of the sliding groove (17) is provided with springs (16); the top of the clamping strip (14) is fixedly connected with a sliding rod (18); the left and right sides of the inside of the cylinder body (12) are provided with sliding grooves (19); and the inside of the cylinder cover body (1) is slidably connected with a piston rod (20).

4. The cylinder head and cylinder barrel connecting structure according to claim 3, characterized by: The outside of the sliding rod (18) is slidably connected in the inside of the sliding groove (19), and the outside of the gasket (15) is slidably connected in the inside of the sliding groove (17).

5. The cylinder head and cylinder barrel connecting structure according to claim 3, characterized by: The outside of the piston rod (20) is slidably connected to the inner wall of the dustproof ring (2), and a plurality of fixed grooves are formed in the inside of the cylinder body (12).

6. The cylinder head and cylinder barrel connecting structure according to claim 3, characterized by: One end of the spring (16) is fixedly connected to the inside of the sliding groove (17), and the other end of the spring (16) is fixedly connected to the outer side wall of the gasket (15).

7. The cylinder head and cylinder barrel connecting structure according to claim 3, characterized by: The outside of the clamping ball (10) is slidably connected in the inside of the limiting groove (13), and the outside of the clamping strip (14) is slidably connected in the inside of the clamping groove (5).

8. The cylinder head and cylinder barrel connecting structure according to claim 1, characterized by: The outside of the lead screw (7) is threadedly connected in the inside of the fixed ring (9) and the placing ring (11), and the bottom of the placing ring (11) is in contact with the top of the limiting ring (8).