Fluid damper

Abstract

The utility model discloses a fluid damper which comprises a shell barrel, a piston is arranged in the shell barrel, one end of the piston is fixedly connected with a piston rod, a first flange cover is fixedly installed at the top end of the shell barrel, a first sealing cover is fixedly installed on the inner wall of the first flange cover, and a first sealing gasket is installed on the outer wall of the first sealing cover. The top of the first flange cover is provided with a second flange, the bottom end of the second flange is fixedly provided with a second sealing cover, the inner wall of the second sealing cover is provided with a second sealing gasket, and the inner wall of the second sealing gasket and the outer wall of the first sealing gasket extrude each other. And the heat conduction plate transmits heat to the second sealing gasket and the first sealing gasket close to the heat conduction plate, so that the second sealing gasket and the first sealing gasket are heated to expand, when the temperature rises, the second sealing gasket and the second flange expand along with the second sealing gasket and the first sealing gasket, and the better sealing effect is achieved through the expansion characteristic.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to a fluid damper. Background Art

[0002] A fluid damper is a device that achieves mechanical shock absorption, vibration reduction and vibration control based on the principles of fluid dynamics. It is composed of a liquid and a shell that forms a closed container. A fluid damper generally includes an inlet, an outlet, a working chamber, a piston, damping oil, a seal and other components.

[0003] A viscous damper based on fluid motion is disclosed in the patent with the announcement number CN 214090458 U. The surface of the cylinder is sleeved with a shell, the left end of the shell is fixedly connected to the piston rod, the side wall of the shell is provided with equidistantly distributed range lines, and the interior of the shell is provided with a reflective sleeve, which is fixedly connected to the end of the cylinder. The utility model is convenient for protecting the extended end of the piston rod by providing a slidingly connected shell on the surface of the cylinder, and is convenient for checking the movable stroke of the damper by providing a range line on the surface of the shell in conjunction with the reflective sleeve fixedly connected to the end of the cylinder.

[0004] The above technology has the problem that although the protruding end of the piston rod can be protected by a slidingly connected shell, the damper still needs to have its components replaced after a certain period of use to ensure a good damping effect. However, the sealing is easily weakened when it is opened frequently, which leads to certain dangers during use, so innovation is made in this technology. Utility Model Content

[0005] The purpose of the utility model is to provide a fluid damper to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fluid damper, comprising an outer shell cylinder, a piston is provided inside the outer shell cylinder, one end of the piston is fixedly connected to a piston rod, a first flange cover is fixedly installed on the top end of the outer shell cylinder, a first sealing cover is fixedly installed on the inner wall of the first flange cover, a first sealing gasket is installed on the outer wall of the first sealing cover, a second flange is provided on the top of the first flange cover, a second sealing cover is fixedly installed on the bottom end of the second flange, a second sealing gasket is installed on the inner wall of the second sealing cover, the inner wall of the second sealing gasket and the outer wall of the first sealing gasket are pressed against each other, and a heat conducting plate is fixedly installed on the bottom end inside the second sealing cover.

[0007] As a preferred technical solution of the utility model, a fixed cover is fixedly installed on the bottom of the outer shell cylinder, a piston head is installed on the inner wall of the fixed cover, and the piston rod and the piston head are movably penetrated.

[0008] As a preferred technical solution of the utility model, the first flange cover and the second flange are squeezed against each other, and the surfaces of the first flange cover and the second flange are both provided with a plurality of screw holes, and two adjacent screw holes are threadedly connected by a set screw.

[0009] As a preferred technical solution of the utility model, one end of the piston rod is threadedly connected with a fixing ring, and the fixing ring and the end not adjacent to the second flange are both installed with connecting pieces.

[0010] As a preferred technical solution of the present invention, the sizes of the two connecting pieces are consistent.

[0011] As a preferred technical solution of the utility model, the piston is movably connected to the interior of the outer shell cylinder, and the interior of the outer shell cylinder is filled with a damping medium.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is provided with a first flange cover, a first sealing cover, a first sealing gasket, a second flange, a second sealing cover, a second sealing gasket and a heat conducting plate. When the first flange cover is brought close to the second flange, the first sealing cover is driven to penetrate into the interior of the second sealing cover. At this time, the first sealing gasket and the second sealing gasket are squeezed against each other to achieve the effect of sealing the top of the outer shell cylinder. When the energy is converted into heat energy by the damping medium during the operation of the device, the heat conducting plate can absorb heat to play a role of auxiliary heat dissipation, and the heat conducting plate transfers the heat to the second sealing gasket and the first sealing gasket close to the heat conducting plate, so that the second sealing gasket and the first sealing gasket are heated and expanded. When the temperature rises, the volume of the second sealing gasket and the second flange expands accordingly, and a better sealing effect is achieved by utilizing the expansion characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0016] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of the partial split structure of the utility model.

[0018] In the figure: 1. outer shell cylinder; 2. piston; 3. piston rod; 4. fixing cover; 5. piston head; 6. first flange cover; 7. first sealing cover; 8. first sealing gasket; 9. second flange; 10. second sealing cover; 11. second sealing gasket; 12. heat conducting plate; 13. screw hole; 14. screw; 15. fixing ring; 16. connecting piece. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0022] It includes an outer shell cylinder 1, a piston 2 is arranged inside the outer shell cylinder 1, one end of the piston 2 is fixedly connected to a piston rod 3, a first flange cover 6 is fixedly installed on the top of the outer shell cylinder 1, a first sealing cover 7 is fixedly installed on the inner wall of the first flange cover 6, a first sealing gasket 8 is installed on the outer wall of the first sealing cover 7, a second flange 9 is arranged on the top of the first flange cover 6, a second sealing cover 10 is fixedly installed on the bottom end of the second flange 9, a second sealing gasket 11 is installed on the inner wall of the second sealing cover 10, the inner wall of the second sealing gasket 11 and the outer wall of the first sealing gasket 8 are pressed against each other, a heat conducting plate 12 is fixedly installed on the bottom end inside the second sealing cover 10, the heat conducting plate 12 is made of copper, has high thermal conductivity and high temperature resistance, can quickly conduct heat to the entire plate, thereby achieving good heat dissipation performance, and can conduct heat to the second sealing gasket 11 and the first sealing gasket 8 through the heat conducting plate 12.

[0023] In this embodiment, a fixed cover 4 is fixedly installed at the bottom of the outer shell cylinder 1, and a piston head 5 is installed on the inner wall of the fixed cover 4. The piston rod 3 and the piston head 5 are movable through each other, and the fixed cover 4 plays a role of supporting the piston head 5. The external vibration or impact can be transmitted to the damping medium through the working movement of the fixed cover 4 and the fixed cover 4, thereby achieving the effect of absorbing and dissipating energy.

[0024] In this embodiment, the first flange cover 6 and the second flange 9 are squeezed against each other, and a plurality of screw holes 13 are provided on the surfaces of the first flange cover 6 and the second flange 9. Two adjacent screw holes 13 are threadedly connected by a screw rod 14. The setting of the screw holes 13 and the screw rod 14 serves to connect the first flange cover 6 and the second flange 9, so that the sealing of the top end of the outer shell cylinder 1 is ensured after the first flange cover 6 and the second flange 9 are limited.

[0025] In this embodiment, one end of the piston rod 3 is threadedly connected to a fixing ring 15, and a connecting piece 16 is installed on the fixing ring 15 and the end not adjacent to the second flange 9. The cooperation between the fixing ring 15 and the connecting piece 16 can assist in the installation of the outer shell cylinder 1 with the outside world, and can change the bearing angle of the device.

[0026] Working principle: When in use, the first flange cover 6 and the second flange 9 are engaged with each other, and the first sealing cover 7 is engaged with the inner wall of the second sealing cover 10, so that the second sealing gasket 11 and the first sealing gasket 8 are squeezed against each other, and the two screw holes 13 are threadedly connected by the screw 14, so that the first flange cover 6 and the second flange 9 are kept in a sealed state. When the piston rod 3 is subjected to pressure, the external vibration or impact can be transferred to the damping medium through the working movement of the fixed cover 4 and the piston head 5, thereby achieving the effect of absorbing and dissipating energy, and converting the energy into heat during operation. The heat conducting plate 12 has a heat conducting effect and can play a role in auxiliary heat dissipation, further introducing heat to the first sealing gasket 8 and the second sealing gasket 11 to expand them. When the temperature rises, the volume of the second sealing gasket 11 and the second flange 9 expands accordingly, and the expansion characteristics are used to achieve a better sealing effect. When the temperature drops, the second sealing gasket 11 and the first sealing gasket 8 will shrink, but there is a pre-pressure between the second sealing gasket 11 and the first sealing gasket 8, which can maintain the compression state between the second sealing gasket 11 and the first sealing gasket 8 to ensure its sealing performance.

[0027] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluid damper, comprising a housing cylinder (1), characterized in that: A piston (2) is provided inside the outer shell cylinder (1), one end of the piston (2) is fixedly connected to a piston rod (3), a first flange cover (6) is fixedly mounted on the top end of the outer shell cylinder (1), a first sealing cover (7) is fixedly mounted on the inner wall of the first flange cover (6), a first sealing gasket (8) is mounted on the outer wall of the first sealing cover (7), a second flange (9) is provided on the top of the first flange cover (6), a second sealing cover (10) is fixedly mounted on the bottom end of the second flange (9), a second sealing gasket (11) is mounted on the inner wall of the second sealing cover (10), the inner wall of the second sealing gasket (11) and the outer wall of the first sealing gasket (8) are pressed against each other, and a heat conducting plate (12) is fixedly mounted on the bottom end of the inside of the second sealing cover (10).

2. A fluid damper according to claim 1, characterized in that: A fixed cover (4) is fixedly mounted on the bottom of the outer shell cylinder (1), a piston head (5) is mounted on the inner wall of the fixed cover (4), and the piston rod (3) and the piston head (5) are movably interpenetrating.

3. A fluid damper according to claim 1, characterized in that: The first flange cover (6) and the second flange (9) are pressed against each other, and a plurality of screw holes (13) are provided on the surfaces of the first flange cover (6) and the second flange (9), and two adjacent screw holes (13) are threadedly connected via a screw rod (14).

4. A fluid damper according to claim 2, characterized in that: One end of the piston rod (3) is threadedly connected to a fixing ring (15), and a connecting piece (16) is installed at the end of the fixing ring (15) that is not adjacent to the second flange (9).

5. A fluid damper according to claim 4, characterized in that: The two connecting pieces (16) have the same dimensions.

6. A fluid damper according to claim 1, characterized in that: The piston (2) is movably connected to the interior of the outer shell cylinder (1), and the interior of the outer shell cylinder (1) is filled with a damping medium.

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