Leakage-proof viscous damper

Abstract

The utility model relates to the field of viscous dampers, in particular to a leakproof viscous damper which comprises a double-layer cylinder body, a main body used for bearing damping media, a piston rod and a piston head arranged in the double-layer cylinder body and used for damping and buffering, and the piston head is fixedly installed outside the piston rod. The viscous damper is provided with the inner sealing rings, the first outer sealing sleeve, the rear end cover, the first sealing plug, the sealing ring, the second sealing plug, the second outer sealing sleeve and the front corrugated buffering end cover. The inner sealing ring conducts first-layer sealing on the damping medium in the inner sealing ring to prevent leakage, and then when the front corrugated buffering end cover and the rear end cover are connected with the double-layer cylinder body, a first sealing plug and a second sealing plug are further arranged in the connecting position. And the sealing rings are embedded in the front and the back of the first sealing plug and the second sealing plug, so that the overall sealing and leakage-proof effects are further enhanced.

Description

Technical Field

[0001] This utility model relates to the field of viscous dampers, specifically to a leak-proof viscous damper. Background Technology

[0002] Viscous dampers are an important type of energy-dissipating and vibration-damping device. Based on the principle of fluid motion, especially when the fluid interacts with the wall cylinder or wall tube as it passes through a throttling orifice or moves relative to the wall in a closed space, the kinetic energy generated by the fluid motion is converted into heat energy, thereby dissipating the energy input by the earthquake. This energy-dissipating device that converts kinetic energy into heat energy through fluid motion is called a viscous damper.

[0003] A search revealed a viscous damper with publication number CN214194107U, specifically disclosing a viscous damper comprising: a cylinder, a piston inside the cylinder, a piston rod connected to the piston, one end of the piston rod extending out of the cylinder and having an ear plate for connecting to a main beam, a connecting assembly for hinged to a tower end support below it, fixed to the side of the cylinder away from the ear plate, a balancing cylinder for balancing the weight of the cylinder, fixed to the side of the connecting assembly away from the cylinder. This viscous damper significantly improves the unilateral wear condition of the dynamic seal between the piston rod and the cylinder, thereby increasing the overall service life of the viscous damper and effectively reducing its installation space.

[0004] Existing viscous dampers lack a leak-proof sealing structure during use, making it easier for the fluid inside the damper to leak out from the gaps between the cylinder, piston rod, or end cap. This leads to a decrease in damper performance or even failure, affecting its damping performance. It also results in unsatisfactory control during vibration, increasing the risk of structural damage. Furthermore, the viscous dampers in the comparative cases mentioned above also lack a leak-proof sealing structure. Therefore, under long-term use, leakage problems require frequent inspections and repairs, increasing maintenance costs and time.

[0005] Therefore, it is necessary to invent a leak-proof viscous damper to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a leak-proof viscous damper. Through an inner sealing ring, a first outer sealing sleeve, a rear end cap, a first sealing plug, a sealing ring, a second sealing plug, a second outer sealing sleeve, and a front corrugated buffer end cap, a multi-layered sealing structure is formed. This multi-layered sealing structure effectively achieves the leak-proof purpose of the viscous damper, greatly improving its sealing performance. It effectively prevents leakage of the damping medium under high pressure or high-speed motion, thus ensuring the normal operation of the damper. Furthermore, the various sealing components of the viscous damper can complement and support each other, thereby improving the overall durability and service life. Even if one sealing component wears or ages, the other sealing components can still continue to function. To prevent leakage, viscous dampers can adapt to different working environments and conditions, providing reliable sealing and leak-proof effects in high-temperature, high-pressure, and corrosive environments. This addresses the problem in existing viscous dampers where the lack of a leak-proof sealing structure makes it easier for fluid inside the damper to leak from the gaps between the cylinder, piston rod, or end cap, leading to decreased damper performance or even failure, thus affecting its damping performance. This also results in unsatisfactory control during vibration, increasing the risk of structural damage. Furthermore, the viscous dampers in the comparative cases mentioned above also lack a leak-proof sealing structure, requiring frequent inspections and repairs under long-term use, thus increasing maintenance costs and time.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof viscous damper, comprising a double-layer cylinder body for carrying the damping medium;

[0008] A piston rod is located inside the double-layer cylinder body for damping and buffering. A piston head is fixedly installed on the outside of the piston rod. Inner sealing rings are fixedly installed on both sides inside the double-layer cylinder body. A first outer sealing sleeve is welded to the outside of the double-layer cylinder body. A rear end cap is fixedly connected inside the first outer sealing sleeve.

[0009] A fixing bolt passes through the outside of the rear end cap and is used to thread the first sealing plug. The outside of the first sealing plug is provided with a bidirectional groove, and a sealing ring is embedded inside the bidirectional groove.

[0010] The second sealing plug is located at the other end of the inner cavity of the double-layer cylinder body to enhance the sealing effect of the piston rod. A sealing sleeve is fixedly installed between the second sealing plug and the inner sealing ring. A second outer sealing sleeve is welded to the other side of the outer cavity of the double-layer cylinder body. A front corrugated buffer end cap is fixedly installed on the outside of the second outer sealing sleeve.

[0011] Preferably, the piston rod is slidably connected to the double-layer cylinder body, and the inner sealing ring is fixedly connected to the double-layer cylinder body.

[0012] Preferably, a first connector is fixedly installed on the outside of the rear end cover, and a first stiffening mounting seat is pinned to the outside of the first connector.

[0013] Preferably, the first sealing plug is threadedly connected to the double-layer cylinder body, and the sealing ring is used in conjunction with the bidirectional groove.

[0014] Preferably, the second sealing plug is threadedly connected to the double-layer cylinder body, and the piston rod is slidably connected to the second sealing plug.

[0015] Preferably, a second connecting body is fixedly installed at the other end of the piston rod, and a second stiffening mounting seat is pinned to the outside of the second connecting body.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] This utility model comprises an inner sealing ring, a first outer sealing sleeve, a rear end cap, a first sealing plug, a sealing ring, a second sealing plug, a second outer sealing sleeve, and a front corrugated buffer end cap. When using this viscous damper, firstly, inner sealing rings are installed at both ends of the double-layer cylinder body, providing a layer of sealing to prevent leakage of the internal damping medium. Then, when the front corrugated buffer end cap connects to the rear end cap and the double-layer cylinder body, a first sealing plug and a second sealing plug are also installed inside the connection point. Moreover, sealing rings are embedded in the front and rear of both the first and second sealing plugs to further enhance the overall sealing and leakage prevention effect. Finally, to ensure the sealing of the piston rod's moving end, the second sealing plug and the inner sealing ring are connected by a sealing sleeve. This creates a multi-seal structure for the viscous damper. This multi-seal structure effectively prevents leakage in viscous dampers. This combined use significantly improves the sealing performance of the viscous damper. This design effectively prevents leakage of the damping medium under high pressure or high speed, ensuring the normal operation of the damper. Furthermore, the various sealing components of the viscous damper complement and support each other, improving overall durability and service life. Even if one sealing component wears or ages, the others can continue to function, preventing leakage. This multi-seal structure also allows the viscous damper to adapt to different working environments and conditions, providing reliable sealing and leak prevention in high-temperature, high-pressure, or corrosive environments, ensuring the normal operation of the damper. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the inner sealing ring structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the rear end cap structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the sealing sleeve structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the front corrugated buffer end cap structure of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Double-layer cylinder body; 2. Piston rod; 3. Piston head; 4. Inner sealing ring; 5. First outer sealing sleeve; 6. Rear end cap; 7. Fixing bolt; 8. First sealing plug; 9. Bidirectional groove; 10. Sealing ring; 11. First connecting body; 12. First stiffening mounting seat; 13. Second sealing plug; 14. Sealing sleeve; 15. Second outer sealing sleeve; 16. Front corrugated buffer end cap; 17. Second connecting body; 18. Second stiffening mounting seat. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-5 The leak-proof viscous damper shown includes a double-layer cylinder 1, which is the main body for carrying the damping medium;

[0028] Piston rod 2 is located inside the double-layer cylinder 1 for damping and buffering. Piston head 3 is fixedly installed on the outside of piston rod 2. Inner sealing rings 4 are fixedly installed on both sides inside the double-layer cylinder 1. A first outer sealing sleeve 5 is welded to the outside of the double-layer cylinder 1. A rear end cap 6 is fixedly connected inside the first outer sealing sleeve 5.

[0029] The fixing bolt 7 passes through the outside of the rear end cover 6 and is used to thread the first sealing plug 8. The first sealing plug 8 has a bidirectional groove 9 on its outside and a sealing ring 10 is embedded inside the bidirectional groove 9.

[0030] The second sealing plug 13 is located at the other end of the inner cavity of the double-layer cylinder 1 to enhance the sealing effect of the piston rod 2. A sealing sleeve 14 is fixedly installed between the second sealing plug 13 and the inner sealing ring 4. A second outer sealing sleeve 15 is welded to the other side of the outer cavity of the double-layer cylinder 1. A front corrugated buffer end cap 16 is fixedly installed on the outside of the second outer sealing sleeve 15. When the front corrugated buffer end cap 16 is connected to the rear end cap 6 and the double-layer cylinder 1, a first sealing plug 8 and a second sealing plug 13 are also provided inside the connection. Moreover, sealing rings 10 are embedded in the front and rear of the first sealing plug 8 and the second sealing plug 13 to further enhance the overall sealing and leak-proof effect.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the piston rod 2 is slidably connected to the double-layer cylinder 1, and the inner sealing ring 4 is fixedly connected to the double-layer cylinder 1. The inner sealing ring 4 is first set at both ends of the double-layer cylinder 1. The inner sealing ring 4 provides a layer of sealing to prevent leakage of the internal damping medium. The first connecting body 11 is fixedly installed on the outside of the rear end cover 6. The first connecting body 11 is pinned to the outside of the first stiffening mounting seat 12. The first connecting body 11 and the first stiffening mounting seat 12 facilitate the installation and use of the viscous damper in different external environments. The first sealing plug 8 is threadedly connected to the double-layer cylinder 1. The sealing ring 10 is used in conjunction with the bidirectional groove 9. The sealing ring 10 is embedded in the front and rear of the first sealing plug 8 and the second sealing plug 13 to further enhance the sealing and leakage prevention effect at the connection.

[0032] like Figure 1 , Figure 4 and Figure 5 As shown, the second sealing plug 13 is threadedly connected to the double-layer cylinder body 1, and the piston rod 2 is slidably connected to the second sealing plug 13. In order to ensure the sealing of the moving end of the piston rod 2, the second sealing plug 13 and the inner sealing ring 4 are also connected by a sealing sleeve 14, which further enhances the sealing of the piston rod 2 during movement. The other end of the piston rod 2 is fixedly installed with a second connecting body 17, and the second stiffening mounting seat 18 is pinned to the outside of the second connecting body 17. The overall structure of the second connecting body 17 and the second stiffening mounting seat 18 is simple and easy to operate, and it is convenient for maintenance personnel to replace and repair in time if a fault occurs.

[0033] The working principle of this utility model is as follows: First, the two ends of the viscous damper are installed with the external locations requiring buffering and vibration reduction via the first connecting body 11, the first stiffening mounting base 12, the second connecting body 17, and the second stiffening mounting base 18. Then, during use, as vibration is transmitted, the piston rod 2 drives the piston head 3 to push the damping medium within the double-layer cylinder 1 to complete relative movement, thus achieving vibration reduction and buffering. During the flow of the damping medium, inner sealing rings 4 are first installed at both ends of the double-layer cylinder 1, providing a layer of seal against leakage. Next, when the front corrugated buffer end cap 16 connects to the rear end cap 6 and the double-layer cylinder 1, a first sealing plug 8 and a second sealing plug 13 are also installed inside the connection point. Furthermore, sealing rings 10 are embedded in the front and rear of both the first sealing plug 8 and the second sealing plug 13 to further enhance the overall sealing and leakage prevention effect. Subsequently, to ensure… The sealing of the movable end of the piston rod 2 allows the second sealing plug 13 and the inner sealing ring 4 to be connected through the sealing sleeve 14, forming a multi-seal structure for the viscous damper. This multi-seal structure effectively achieves the purpose of preventing leakage of the viscous damper, greatly improving its sealing performance. This design can effectively prevent leakage of the damping medium under high pressure or high speed, thus ensuring the normal operation of the damper. Moreover, the various sealing components of the viscous damper can complement and support each other, thereby improving the overall durability and service life. Even if one sealing component wears or ages, other sealing components can still continue to function and prevent leakage. Finally, after completing the installation and use of the viscous damper according to the above operations, routine maintenance of the viscous damper is required. In this way, the use of the leak-proof viscous damper is completed.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A leak-proof viscous damper, characterized in that: include A double-layer cylinder body (1) is used as the main body to carry the damping medium; The piston rod (2) is located inside the double-layer cylinder (1) for damping and buffering. The piston rod (2) is fixedly mounted with a piston head (3). The inner sealing rings (4) are fixedly mounted on both sides inside the double-layer cylinder (1). The outer side of the double-layer cylinder (1) is welded with a first outer sealing sleeve (5). The inner side of the first outer sealing sleeve (5) is fixedly connected with a rear end cap (6). A fixing bolt (7) passes through the outside of the rear end cap (6) and is used to thread the first sealing plug (8). The first sealing plug (8) has a bidirectional groove (9) on its outside and a sealing ring (10) is embedded inside the bidirectional groove (9). The second sealing plug (13) is located at the other end of the inner cavity of the double-layer cylinder (1) to enhance the sealing effect of the piston rod (2). A sealing sleeve (14) is fixedly installed between the second sealing plug (13) and the inner sealing ring (4). A second outer sealing sleeve (15) is welded to the other side of the outer cavity of the double-layer cylinder (1). A front corrugated buffer end cap (16) is fixedly installed on the outside of the second outer sealing sleeve (15).

2. The anti-leakage viscous damper according to claim 1, characterized in that: The piston rod (2) is slidably connected to the double-layer cylinder (1), and the inner sealing ring (4) is fixedly connected to the double-layer cylinder (1).

3. The anti-leakage viscous damper according to claim 1, characterized in that: The rear end cover (6) is fixedly mounted with a first connector (11), and the first connector (11) is pinned to a first stiffening mounting seat (12).

4. The anti-leakage viscous damper according to claim 1, characterized in that: The first sealing plug (8) is threadedly connected to the double-layer cylinder body (1), and the sealing ring (10) is used in conjunction with the bidirectional groove (9).

5. The anti-leakage viscous damper according to claim 1, characterized in that: The second sealing plug (13) is threadedly connected to the double-layer cylinder body (1), and the piston rod (2) is slidably connected to the second sealing plug (13).

6. The anti-leakage viscous damper according to claim 1, characterized in that: The other end of the piston rod (2) is fixedly installed with a second connector (17), and the second connector (17) is pinned to a second stiffening mounting seat (18).

Images