Gas spring with protective structure

Abstract

The utility model discloses a gas spring with a protective structure, and relates to the technical field of gas springs, the gas spring with the protective structure is provided with a cylinder barrel, a piston rod, a piston body, an ordinary spring, a heat conducting ring and a radiating fin, the ordinary spring is arranged between the piston body and a supporting block and can be combined with inert gas, and the heat conducting ring is arranged between the piston body and the supporting block. The heat conduction ring and the cooling fins can quickly conduct heat in the cylinder barrel out, so that the heat dissipation effect is achieved, the temperature in the cylinder barrel is prevented from being too high, the abrasion degree between the piston rod and the guide sleeve can be reduced, and the service life of the air spring is prolonged. And oil is further arranged on the side face of the piston body and can be mixed with inert gas, movement of the piston body is achieved, and the piston is more durable.

Description

Technical Field

[0001] The utility model relates to the technical field of gas springs, in particular to a gas spring with a protective structure. Background Art

[0002] At present, gas springs use inert gas or oil-gas mixture to make the air pressure in the closed pressure cylinder many times greater than the atmospheric pressure, and use the pressure difference to realize the movement of the piston rod, thereby achieving the same elastic force as ordinary springs. Most gas springs will experience a certain degree of wear during long-term use, resulting in air leakage and inability to use normally.

[0003] For example, the utility model with patent number CN202221532662.X discloses a gas spring with a protective structure, including a cylinder and a piston rod slidably connected to the end of the cylinder, and a protective component is provided at the end of the cylinder corresponding to the piston rod. The protective component specifically includes a rubber ring, and a plurality of reinforcing rods are symmetrically fixedly installed inside the rubber ring. The reinforcing rods penetrate the inside of the rubber ring and extend outside the rubber ring. A socket matching the reinforcing rod is provided at a position on the cylinder corresponding to the reinforcing rod, and the reinforcing rod is inserted into the socket. For this type of gas spring with a protective structure, when the piston rod is pulled out of the cylinder, the protective component is located at the connection between the cylinder and the piston rod, so that the connection between the cylinder and the piston rod is strengthened, preventing the piston rod from breaking at the connection with the cylinder when it is hit by an external force.

[0004] The gas spring in this patent is not provided with a heat dissipation structure. The piston rod of the gas spring will generate a certain amount of heat during movement, which will accelerate the wear rate of the piston rod and cause air leakage in the gas spring, affecting its use. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a gas spring with a protective structure, which solves the problem that the gas spring has no heat dissipation structure.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a gas spring with a protective structure, comprising a cylinder, a guide sleeve detachably installed on the outside of the cylinder, a piston rod arranged inside the guide sleeve, a first mounting head fixedly installed on the end of the piston rod, a piston body fixedly installed on the other end of the piston rod, evenly distributed air holes are opened on the surface of the piston body, a support block is fixedly installed on the bottom of the cylinder, a common spring is arranged between the support block and the piston body, a second mounting head is fixedly installed on the outside of the cylinder, an inert gas is arranged between the piston body and the support block, oil is arranged on the other side of the piston body, a heat conducting ring is fixedly installed on the outside of the cylinder, and a heat sink is arranged on the outside of the heat conducting ring.

[0007] Preferably, a sealing connection sleeve is fixedly installed inside the cylinder, a rubber sealing sleeve is arranged at the lower end of the sealing connection sleeve, and the sealing connection sleeve and the guide sleeve are threadedly connected.

[0008] Preferably, a total of five groups of heat sinks are provided, and the heat sinks are evenly distributed outside the heat conducting ring.

[0009] Preferably, an inflation pipe is fixedly connected to the outside of the cylinder, and a sealing cap is detachably installed on the outside of the inflation pipe.

[0010] Preferably, evenly distributed O-rings are fixedly mounted on the outside of the piston body, and sealing gaskets are arranged on both sides of the O-rings.

[0011] Preferably, a convex ring is provided on the inner wall of the cylinder, and a buffer gasket is provided outside the convex ring.

[0012] Beneficial Effects

[0013] The utility model provides a gas spring with a protective structure. Compared with the prior art, it has the following beneficial effects:

[0014] The gas spring with a protective structure is provided with a cylinder, a piston rod, a piston body, a common spring, a heat-conducting ring and a heat sink. The common spring is provided between the piston body and the support block and can play a certain elastic role together with the inert gas to prevent the gas spring from being used normally when the inert gas leaks. The heat-conducting ring and the heat sink can quickly conduct the heat inside the cylinder to dissipate heat and prevent the internal temperature of the cylinder from being too high. The wear between the piston rod and the guide sleeve can be reduced. Oil is also provided on the side of the piston body and can be mixed with the inert gas to realize the movement of the piston body, making the gas spring more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 For this utility model Figure 2 The structural diagram at A in the middle;

[0018] Figure 4 It is a structural schematic diagram of the piston body in the utility model.

[0019] In the figure: 1-cylinder; 2-guide sleeve; 3-piston rod; 4-first mounting head; 5-sealing connection sleeve; 6-rubber sealing sleeve; 7-piston body; 8-support block; 9-ordinary spring; 10-second mounting head; 11-oil; 12-inert gas; 13-heat-conducting ring; 14-heat sink; 15-inflating pipe; 16-sealing cap; 17-air hole; 18-O-ring; 19-sealing gasket; 20-buffer gasket. DETAILED DESCRIPTION

[0020] 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.

[0021] A gas spring with a protective structure, see Figure 1-4 , including a cylinder 1, a guide sleeve 2 is detachably installed on the outside of the cylinder 1, a piston rod 3 is arranged inside the guide sleeve 2, a first mounting head 4 is fixedly installed on the end of the piston rod 3, a piston body 7 is fixedly installed on the other end of the piston rod 3, and evenly distributed air holes 17 are opened on the surface of the piston body 7, a support block 8 is fixedly installed on the bottom of the cylinder 1, a common spring 9 is arranged between the support block 8 and the piston body 7, and the common spring 9 is arranged between the piston body 7 and the support block 8, which can play a certain elastic role together with the inert gas 12, a second mounting head 10 is fixedly installed on the outside of the cylinder 1, an inert gas 12 is arranged between the piston body 7 and the support block 8, and oil 11 is arranged on the other side of the piston body 7, a heat conducting ring 13 is fixedly installed on the outside of the cylinder 1, and a heat sink 14 is arranged on the outside of the heat conducting ring 13, and the heat conducting ring 13 and the heat sink 14 can quickly conduct the heat inside the cylinder 1, thereby playing a role in heat dissipation and avoiding excessive temperature inside the cylinder 1.

[0022] A sealing connection sleeve 5 is fixedly installed inside the cylinder 1, and a rubber sealing sleeve 6 is arranged at the lower end of the sealing connection sleeve 5. The sealing connection sleeve 5 and the guide sleeve 2 are threadedly connected. A total of five groups of heat sinks 14 are arranged, and the heat sinks 14 are evenly distributed outside the heat conductive ring 13. An inflation pipe 15 is fixedly connected to the outside of the cylinder 1, and a sealing cap 16 is detachably installed on the outside of the inflation pipe 15. The inert gas 12 can be injected into the cylinder 1 through the inflation pipe 15. Evenly distributed O-rings 18 are fixedly installed on the outside of the piston body 7, and sealing gaskets 19 are arranged on both sides of the O-rings 18. A convex ring is arranged on the inner wall of the cylinder 1, and a buffer gasket 20 is arranged outside the convex ring. By arranging the O-rings 18 and the sealing gaskets 19, the sealing performance of the piston body 7 can be improved and the sealing effect can be enhanced.

[0023] During operation, the first mounting head 4 and the second mounting head 10 of the gas spring are first fixed on different objects respectively, and then the sealing cap 16 is opened to inject the inert gas 12 into the cylinder 1. After the injection is completed, the sealing cap 16 is closed again. The ordinary spring 9 is arranged between the piston body 7 and the support block 8, and can play a certain elastic role together with the inert gas 12 to prevent the gas spring from leaking normally when the inert gas 12 leaks. The heat-conducting ring 13 and the heat sink 14 can quickly conduct the heat inside the cylinder 1, thereby playing a role in heat dissipation, avoiding the internal temperature of the cylinder 1 from being too high, and reducing the wear between the piston rod 3 and the guide sleeve 2. The side of the piston body 7 is also provided with oil 11, which can be mixed with the inert gas 12 to realize the movement of the piston body 7.

[0024] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A gas spring with a protective structure, comprising a cylinder (1), characterized in that: The cylinder barrel (1) is detachably mounted with a guide sleeve (2), a piston rod (3) is arranged inside the guide sleeve (2), a first mounting head (4) is fixedly mounted on the end of the piston rod (3), a piston body (7) is fixedly mounted on the other end of the piston rod (3), the surface of the piston body (7) is provided with evenly distributed air holes (17), a support block (8) is fixedly mounted on the bottom of the cylinder barrel (1), a common spring (9) is arranged between the support block (8) and the piston body (7), a second mounting head (10) is fixedly mounted on the outside of the cylinder barrel (1), an inert gas (12) is arranged between the piston body (7) and the support block (8), oil (11) is arranged on the other side of the piston body (7), a heat conducting ring (13) is fixedly mounted on the outside of the cylinder barrel (1), and a heat sink (14) is arranged outside the heat conducting ring (13).

2. The gas spring with a protective structure according to claim 1, characterized in that: A sealing connection sleeve (5) is fixedly installed inside the cylinder (1), a rubber sealing sleeve (6) is arranged at the lower end of the sealing connection sleeve (5), and the sealing connection sleeve (5) and the guide sleeve (2) are threadedly connected.

3. The gas spring with a protective structure according to claim 1, characterized in that: A total of five groups of heat sinks (14) are provided, and the heat sinks (14) are evenly distributed outside the heat conducting ring (13).

4. The gas spring with a protective structure according to claim 1, characterized in that: The cylinder (1) is fixedly connected to the outside of an air-inflating pipe (15), and a sealing cap (16) is detachably mounted on the outside of the air-inflating pipe (15).

5. The gas spring with a protective structure according to claim 1, characterized in that: The piston body (7) is fixedly mounted with evenly distributed O-type sealing rings (18) on the outside, and sealing gaskets (19) are arranged on both sides of the O-type sealing ring (18).

6. The gas spring with a protective structure according to claim 1, characterized in that: A convex ring is arranged on the inner wall of the cylinder (1), and a buffer washer (20) is arranged outside the convex ring.

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