Anti-seismic hydraulic oil cylinder

Abstract

The utility model provides an anti-seismic hydraulic oil cylinder, which relates to the technical field of hydraulic oil cylinders and comprises a hydraulic oil cylinder main body, a push rod is inserted into the hydraulic oil cylinder main body, and an anti-seismic component is arranged on the inner wall of one side of the hydraulic oil cylinder main body and comprises a fixing frame and a connecting frame. The four connecting frames are connected to the surface of the fixing frame, a first spring is arranged on the surface of each connecting frame, a sleeve is connected to one end of each first spring, a first rotating shaft is connected to the surface of each sleeve, and a connecting rod is connected to the surface of each first rotating shaft. According to the hydraulic oil cylinder, after the piston makes contact with the rubber block, buffering is conducted through the four sets of second springs, then buffering is conducted again through the four sets of first springs, and therefore the damping effect is effectively achieved, the problem that an existing device cannot achieve damping on the piston is solved, and the service life of the hydraulic oil cylinder body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to an anti-seismic hydraulic cylinder. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy to achieve linear reciprocating motion (or swinging motion). Its working principle is based on Pascal's law, that is, in a closed container, the magnitude of the pressure transmitted by the liquid is proportional to the transmitted force and has the same direction.

[0003] As disclosed in publication number: CN220396160U, an anti-seismic hydraulic cylinder relates to the technical field of hydraulic cylinders, including a cylinder body, a piston is arranged inside the cylinder body, a rubber plate is arranged inside the cylinder body, two groups of connecting bolts are fixedly installed on one side of the rubber plate, the insides of the two groups of connecting bolts are movably connected with connecting rods, the other sides of the two groups of connecting rods are movably connected with connecting seats, and one side of the two groups of connecting seats is fixedly installed with connecting rings. The utility model provides two groups of connecting rings, and since the inner walls of the two groups of connecting rings are in close contact with the outer walls of the fixed rods, the friction force is relatively large, which has a good buffering effect on the movement of the two groups of connecting seats, and indirectly has a buffering effect on the leftward movement of the rubber plate and the piston, and by providing a No. 3 spring, it has a buffering effect on the movement of the two groups of connecting rings toward the center, and indirectly has a buffering effect on the leftward movement of the rubber plate and the piston.

[0004] This patent can cushion the piston through a connecting seat and a spring, but in actual use, it is found that a single set of springs cannot satisfy the cushioning effect of the piston, which in turn affects the service life of the hydraulic cylinder body. Therefore, we propose a new type of shock-resistant hydraulic cylinder. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that a single set of springs cannot provide sufficient buffering effect on the piston, thereby affecting the service life of the hydraulic cylinder body.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-seismic hydraulic cylinder, comprising a hydraulic cylinder body, a push rod is inserted into the interior of the hydraulic cylinder body, an anti-seismic component is arranged on the inner wall of one side of the hydraulic cylinder body, the anti-seismic component comprises a fixed frame and a connecting frame, four groups of the connecting frames are connected to the surface of the fixed frame, a first spring is arranged on the surface of each group of the connecting frames, one end of the first spring is connected to a sleeve, the surface of the sleeve is connected to a first rotating shaft, the surface of the first rotating shaft is connected to a connecting rod, one side of the connecting rod is connected to a second rotating shaft, one side of the four groups of the second rotating shafts are fixedly connected to rubber blocks, four groups of second springs are connected to the side of the rubber block close to the fixed frame, and one end of the push rod close to the fixed frame is fixedly connected to a piston.

[0007] Furthermore, the four groups of connecting frames are distributed in a ring shape and connected to the surface of the fixing frame, and an elastic structure is formed between the sleeve and the first spring.

[0008] Furthermore, the sleeve is rotatably connected to the connecting rod via the first rotating shaft, and the connecting rod is rotatably connected to the rubber block via the second rotating shaft.

[0009] Furthermore, the rubber block forms an elastic structure with the inner wall of the hydraulic cylinder body through four groups of second springs.

[0010] Furthermore, a disassembly assembly is provided on an outer surface of one side of the hydraulic cylinder body, and the disassembly assembly includes a threaded hole.

[0011] Furthermore, a sealing cover is attached to one side of the hydraulic cylinder body close to the threaded hole, and an insertion hole is provided inside the sealing cover.

[0012] Furthermore, a threaded rod is inserted into the interior of each group of the insertion holes, and the threaded rod passes through the insertion holes to form a threaded connection with the threaded holes.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when the piston contacts the rubber block, it will be buffered by four groups of second springs first, and then buffered again by four groups of first springs, thereby effectively achieving the shock absorption effect, avoiding the problem that the existing device cannot meet the shock absorption of the piston, and improving the service life of the hydraulic cylinder body.

[0015] 2. In the present invention, when the piston needs to be replaced, the threaded rod can be removed, and then the sealing cover can be disassembled to achieve the replacement of the piston, thereby avoiding the problem that the piston cannot be replaced in some existing hydraulic cylinder bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a seismic-resistant hydraulic cylinder is proposed for the utility model;

[0017] Figure 2 Another perspective schematic diagram of the three-dimensional structure of a seismic-resistant hydraulic cylinder proposed by the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the cross-sectional structure of a hydraulic cylinder body of a seismic-resistant hydraulic cylinder;

[0019] Figure 4 A schematic diagram of a first partial explosion structure of a seismic-resistant hydraulic cylinder is provided for the utility model;

[0020] Figure 5 A schematic diagram of a fixing frame structure of an anti-seismic hydraulic cylinder is provided for the utility model;

[0021] Figure 6 The utility model provides a second partial explosion structure schematic diagram of a seismic-resistant hydraulic cylinder.

[0022] Legend: 1. Hydraulic cylinder body; 2. Push rod; 3. Anti-seismic component; 301. Fixed frame; 302. Connecting frame; 303. First spring; 304. First rotating shaft; 305. Connecting rod; 306. Second rotating shaft; 307. Rubber block; 308. Second spring; 309. Piston; 310. Sleeve; 4. Disassembly and assembly component; 401. Threaded hole; 402. Sealing cover; 403. Socket; 404. Threaded rod. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] Embodiment 1, as Figure 1-Figure 5As shown, the utility model provides an anti-seismic hydraulic cylinder, including a hydraulic cylinder body 1, a push rod 2 is inserted into the interior of the hydraulic cylinder body 1, an anti-seismic component 3 is arranged on the inner wall of one side of the hydraulic cylinder body 1, and the anti-seismic component 3 includes a fixing frame 301 and a connecting frame 302, four groups of connecting frames 302 are connected to the surface of the fixing frame 301, and the surface of each group of connecting frames 302 is provided with a first spring 303, one end of the first spring 303 is connected to a sleeve 310, the surface of the sleeve 310 is connected to a first rotating shaft 304, the surface of the first rotating shaft 304 is connected to a connecting rod 305, one side of the connecting rod 305 is connected to a second rotating shaft 306, and the four groups of second rotating shafts 306 are connected to the first rotating shaft 306. A rubber block 307 is fixedly connected to one side of 06, and four groups of second springs 308 are connected to the side of the rubber block 307 close to the fixed frame 301. A piston 309 is fixedly connected to the end of the push rod 2 close to the fixed frame 301. Four groups of connecting frames 302 are distributed in a ring shape and are connected to the surface of the fixed frame 301. An elastic structure is formed between the sleeve 310 and the first spring 303. The sleeve 310 and the connecting rod 305 are rotationally connected through the first rotating shaft 304. The connecting rod 305 is rotationally connected to the rubber block 307 through the second rotating shaft 306. The rubber block 307 forms an elastic structure with the inner wall of the hydraulic cylinder body 1 through the four groups of second springs 308.

[0026] The effect achieved by the entire embodiment 1 is that when the piston 309 reciprocates in the hydraulic cylinder body 1, it will encounter the anti-vibration component 3, which can provide a multi-level buffering effect for the piston 309. When moving, the piston 309 first contacts the rubber block 307. The rubber block 307 provides the first buffering for the piston 309 due to its good elasticity and shock absorption performance. After the first buffering, the rubber block 307 further pushes the four groups of second springs 308 to be compressed, and the compression process of the second springs 308 provides a second buffering, which further reduces the impact of the piston 309 on the hydraulic cylinder body 1. At the same time, when the rubber block 307 and the second spring 308 are squeezed, they will push the connecting rod 305 through the second rotating shaft 306. The movement of the connecting rod 305 pushes the sleeve 310 through the first rotating shaft 304, so that the sleeve 310 and the four groups of first springs 303 are squeezed. In this process, the compression of the first spring 303 provides a third buffer for the piston 309, ensuring the smooth movement of the piston 309 in the hydraulic cylinder body 1. This buffer reduces the direct impact of the piston 309 on the hydraulic cylinder body 1 and reduces potential damage. Through three buffers, the hydraulic cylinder body 1 effectively reduces the impact and vibration of the piston 309 on the hydraulic cylinder body 1 during movement. This shock-absorbing effect not only protects the hydraulic cylinder body 1 from damage, but also increases its service life, avoiding the problem that the existing device cannot meet the shock-absorbing requirements of the piston 309.

[0027] Embodiment 2, as Figure 1 , Figure 2 and Figure 6 As shown, a disassembly assembly 4 is provided on the outer surface of one side of the hydraulic cylinder body 1, and the disassembly assembly 4 includes a threaded hole 401. A sealing cover 402 is attached to the side of the hydraulic cylinder body 1 close to the threaded hole 401, and a plug hole 403 is provided inside the sealing cover 402. A threaded rod 404 is inserted into the inside of each group of plug holes 403. The threaded rod 404 passes through the plug hole 403 and forms a threaded connection with the threaded hole 401.

[0028] The effect achieved by the entire embodiment 2 is that when the piston 309 needs to be replaced, the hydraulic cylinder body 1 is first closed, and then the threaded rod 404 is removed by a wrench. After removing the threaded rod 404, the sealing cover 402 can be disassembled, and then the piston 309 is taken out of the hydraulic cylinder body 1 and replaced. Finally, the sealing cover 402 is reinstalled on the hydraulic cylinder body 1, and the threaded rod 404 is passed through the socket 403 and then threadedly fixed to the threaded hole 401.

[0029] Working principle: When the piston 309 contacts the rubber block 307, it will first be buffered by the four groups of second springs 308, and then buffered again by the four groups of first springs 303, thereby effectively achieving the shock absorption effect, avoiding the problem that the existing device cannot meet the shock absorption of the piston 309, and improving the service life of the hydraulic cylinder body 1. When the piston 309 needs to be replaced, the threaded rod 404 can be removed, and then the sealing cover 402 can be disassembled to realize the replacement of the piston 309, avoiding the problem that some existing hydraulic cylinder bodies 1 cannot replace the piston 309.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A seismic-resistant hydraulic cylinder, comprising a hydraulic cylinder body (1), characterized in that: A push rod (2) is inserted into the interior of the hydraulic cylinder body (1), and an anti-seismic component (3) is provided on an inner wall of one side of the hydraulic cylinder body (1); The anti-seismic assembly (3) comprises a fixing frame (301) and a connecting frame (302). Four groups of the connecting frames (302) are connected to the surface of the fixing frame (301). The surface of each group of the connecting frames (302) is provided with a first spring (303). One end of the first spring (303) is connected to a sleeve (310). The surface of the sleeve (310) is connected to a first rotating shaft (304). The surface of the first rotating shaft (304) is connected to a connecting rod (305). One side of the connecting rod (305) is connected to a second rotating shaft (306). One side of the four groups of the second rotating shafts (306) is fixedly connected to a rubber block (307). One side of the rubber block (307) close to the fixing frame (301) is connected to four groups of second springs (308). One end of the push rod (2) close to the fixing frame (301) is fixedly connected to a piston (309).

2. The anti-seismic hydraulic cylinder according to claim 1, characterized in that: Four groups of connecting frames (302) are distributed in an annular shape and connected to the surface of the fixing frame (301), and an elastic structure is formed between the sleeve (310) and the first spring (303).

3. The anti-seismic hydraulic cylinder according to claim 2, characterized in that: The sleeve (310) is rotatably connected to the connecting rod (305) via the first rotating shaft (304), and the connecting rod (305) is rotatably connected to the rubber block (307) via the second rotating shaft (306).

4. The anti-seismic hydraulic cylinder according to claim 3, characterized in that: The rubber block (307) forms an elastic structure with the inner wall of the hydraulic cylinder body (1) through four groups of second springs (308).

5. The anti-seismic hydraulic cylinder according to claim 1, characterized in that: A disassembly assembly (4) is provided on one side outer surface of the hydraulic cylinder body (1); the disassembly assembly (4) comprises a threaded hole (401).

6. The anti-seismic hydraulic cylinder according to claim 5, characterized in that: A sealing cover (402) is attached to one side of the hydraulic cylinder body (1) close to the threaded hole (401), and a plug hole (403) is provided inside the sealing cover (402).

7. The anti-seismic hydraulic cylinder according to claim 6, characterized in that: A threaded rod (404) is inserted into the interior of each group of the insertion holes (403), and the threaded rod (404) passes through the insertion holes (403) to form a threaded connection with the threaded holes (401).

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