Tension gas spring

Abstract

The utility model relates to a tension air spring, including cylinder, cylinder one end is provided with fixed end end head, is provided with piston rod end head in another end, is provided with the piston in cylinder, the one end of piston is connected in piston rod, the inside of piston rod is provided with built-in shaft setting hole, built-in shaft setting hole bottom is provided with built-in elastic part, built-in elastic part holds built-in shaft setting hole in and sets up built-in shaft, built-in elastic part is used as holding to first damping supply piece, the other end of piston rod is connected in pull part fixed groove board, the top side of pull part fixed groove board is connected built-in shaft, pull part fixed groove board is provided with piston rod movable connecting plate body, piston rod fixed part connecting plate body in, has the hold to second damping supply piece between piston rod movable connecting plate body, piston rod fixed part connecting plate body, and piston rod movable connecting plate body holds in the bottom inner chamber side of pull part fixed groove board.

Description

Technical Field

[0001] This utility model relates to damping preparation technology and damping equipment, and particularly to a gas spring, specifically a tension gas spring. Background Technology

[0002] In the field of gas spring technology, a pre-treated oil-gas mixture is generally used as a damping medium. Conventional gas springs provide damping when compressed. In some cases, damping is required in both the tensile and compressive directions. However, conventional gas springs cannot provide damping when under tension.

[0003] Therefore, it is necessary to provide a tension gas spring to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a tension gas spring.

[0005] The technical solution is as follows: A tension gas spring includes a cylinder, one end of which is provided with a fixed end cap and the other end of which is provided with a piston rod end cap. A piston is provided inside the cylinder and is connected to one end of a piston rod. An internal shaft setting hole is provided inside the piston rod. An internal elastic element is provided at the bottom of the internal shaft setting hole. The internal elastic element holds the internal shaft provided in the internal shaft setting hole and is used to hold the first damping supply element. The other end of the piston rod is connected to the fixed groove plate of the pulling part. The top side of the fixed groove plate of the pulling part is connected to the built-in shaft. The fixed groove plate of the pulling part is provided with a piston rod movable connecting plate and a piston rod fixed part connecting plate. There is a pulling and second damping supply member between the piston rod movable connecting plate and the piston rod fixed part connecting plate, and the piston rod movable connecting plate is pressed against the bottom inner cavity side of the fixed groove plate of the pulling part.

[0006] Furthermore, a second damping supply component compression length limiting plate is provided inside the pulling part fixing groove plate.

[0007] Furthermore, both the first damping supply component and the second damping supply component are springs.

[0008] Furthermore, the damping medium filling the inner cavity of the piston and cylinder is used in conjunction to form a damping supply structure under pressure, and the first damping supply component and the second damping supply component are combined to form a damping supply structure under tension, thus forming a bidirectional damping supply structure under both pressure and tension.

[0009] Furthermore, the piston rod penetrates the piston rod end cap, and the piston rod end cap is provided with a piston rod sealing skeleton that is used in conjunction with the piston rod.

[0010] Furthermore, end caps, piston rod end caps, and cylinder inner cavity connections are all equipped with end cap seals.

[0011] Compared with the prior art, in this utility model, the damping medium filling the piston and cylinder cavity forms a damping structure under pressure, and the first damping supply component and the second damping supply component are combined to form a damping structure under tension. The combination forms a bidirectional damping structure under pressure and tension, which meets the application of bidirectional damping. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram showing the tension when the second damping supply component is under pressure. Detailed Implementation

[0014] Example:

[0015] Please see Figure 1-2 This embodiment illustrates a tension gas spring, including a cylinder 1. One end of the cylinder 1 is provided with a fixed end cap 2, and the other end is provided with a piston rod end cap 3. A piston 4 is provided inside the cylinder 3. The piston is connected to one end of a piston rod 5. An internal shaft setting hole is provided inside the piston rod 5. An internal elastic element 6 is provided at the bottom of the internal shaft setting hole. The internal elastic element holds the internal shaft 7 provided inside the internal shaft setting hole. The internal elastic element 6 is used to hold the first damping supply element. The other end of the piston rod 5 is connected to the pulling part fixing groove plate 8. The top side of the pulling part fixing groove plate 8 is connected to the built-in shaft 7. The pulling part fixing groove plate 8 is provided with a piston rod movable connecting plate 9 and a piston rod fixing part connecting plate 10. There is a pulling second damping supply member 11 between the piston rod movable connecting plate 9 and the piston rod fixing part connecting plate 10, and the piston rod movable connecting plate 9 is pressed against the bottom inner cavity side of the pulling part fixing groove plate 8.

[0016] A second damping supply component compression length limiting plate 12 is provided inside the pull part fixing groove plate 8.

[0017] Both the first damping supply component 6 and the second damping supply component 11 are springs.

[0018] The damping medium filling the inner cavity of piston 5 and cylinder 1, when used together, forms a damping structure that provides damping under pressure. The first damping supply component 6 and the second damping supply component 11 are combined to form a damping structure that provides damping under tension, thus forming a bidirectional damping structure that provides damping under both pressure and tension.

[0019] The piston rod 5 penetrates the piston rod end cap 3, and the piston rod end cap 3 is provided with a piston rod sealing skeleton 13 that is used in conjunction with the piston rod.

[0020] All the connections between the fixed end cap 2, the piston rod end cap 3, and the inner cavity of the cylinder 1 are provided with end cap seals.

[0021] Compared with the prior art, in this utility model, the damping medium filling the piston and cylinder cavity forms a damping structure under pressure, and the first damping supply component and the second damping supply component are combined to form a damping structure under tension. The combination forms a bidirectional damping structure under pressure and tension, which meets the application of bidirectional damping.

[0022] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A tension gas spring, characterized in that: The cylinder includes a fixed end cap at one end and a piston rod end cap at the other end. A piston is installed inside the cylinder and connected to one end of a piston rod. An internal shaft setting hole is provided inside the piston rod. An internal elastic element is provided at the bottom of the internal shaft setting hole. The internal elastic element holds the internal shaft installed inside the internal shaft setting hole and is used to hold the first damping supply element. The other end of the piston rod is connected to the fixed groove plate of the pulling part. The top side of the fixed groove plate of the pulling part is connected to the built-in shaft. The fixed groove plate of the pulling part is provided with a piston rod movable connecting plate and a piston rod fixed part connecting plate. There is a pulling and second damping supply member between the piston rod movable connecting plate and the piston rod fixed part connecting plate, and the piston rod movable connecting plate is pressed against the bottom inner cavity side of the fixed groove plate of the pulling part.

2. A tension gas spring according to claim 1, characterized in that: A second damping supply component compression length limiting plate is provided inside the fixed groove plate of the pulling part.

3. A tension gas spring according to claim 1 or 2, characterized in that: Both the first damping supply component and the second damping supply component are springs.

4. A tension gas spring according to claim 3, characterized in that: The damping medium filling the inner cavity of the piston and cylinder works together to form a damping structure under pressure. The first damping supply component and the second damping supply component combine to form a damping structure under tension, thus forming a bidirectional damping structure under both pressure and tension.

5. A tension gas spring according to claim 4, characterized in that: The piston rod penetrates the piston rod end cap, and the piston rod end cap is provided with a piston rod sealing skeleton that is used in conjunction with the piston rod.

6. A tension gas spring according to claim 5, characterized in that: Sealing elements for the end caps, piston rod end caps, and cylinder inner cavity are all provided at the connection points.

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