Backpack type gas tank structure single-cylinder shock absorber

Abstract

The utility model relates to the technical field of shock absorbers, in particular to a single-cylinder shock absorber with a backpack type gas tank structure, which is provided with a cylinder body, a piston mechanism is arranged in the cylinder body, a compensation gas tank is arranged on one side of the cylinder body and comprises a tank body, a gas tank end cover and a gas tank base are respectively arranged at two ends of the tank body, and the gas tank end cover is connected with the gas tank base. A floating piston is arranged in the tank body, the gas tank base is fixedly connected to the outer side face of the cylinder body, an inner cavity of the tank body is communicated with an inner cavity of the cylinder body through a connecting pipe, and a one-way gas valve is arranged on the gas tank end cover. According to the utility model, the gas tank is changed into a backpack structure and is directly and fixedly connected to the cylinder body of the shock absorber, an external gas tank is not needed, the fixing problem of the gas tank is not needed, the structure is simple, fixed accessories are omitted, the cost is saved, and the use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a single-tube shock absorber with a backpack gas tank structure. Background Art

[0002] Shock absorbers are common accessories on vehicles. When a vehicle is driving, the tires will vibrate up and down due to the unevenness of the ground. Therefore, shock absorbers are installed to absorb the vibration caused by the wheels encountering uneven roads. In order to further improve comfort, a nitrogen component will be added to provide a reaction force when the piston rod is compressed. On the one hand, it can compensate for the pressure, and on the other hand, it can also play a role in buffering and absorbing vibrations when the vibration is large.

[0003] In the prior art, the shock absorber is as follows Figure 1 As shown, the nitrogen bag needs to be installed separately, and the nitrogen bag needs to be installed in combination with the vehicle body structure through fixed baffles and fasteners. The cost is relatively high, and there are many parts, complex assembly, and uncontrollable installation. During the installation process, oil is easily leaked from the pressure plate, and repeated oil replenishment is required, which poses many problems. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a backpack-type gas tank structure monotube shock absorber, which has a simple structure, saves costs and is more convenient to use.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a backpack-type gas tank structure single-tube shock absorber, comprising a cylinder body, a piston mechanism is installed in the cylinder body, a compensation gas tank is provided on one side of the cylinder body, the compensation gas tank includes a tank body, gas tank end covers and a gas tank base are respectively provided at both ends of the tank body, a floating piston is provided in the tank body, the gas tank base is fixedly connected to the outer side surface of the cylinder body, the inner cavity of the tank body is communicated with the inner cavity of the cylinder body through a connecting pipe, and a one-way gas valve is provided on the gas tank end cover.

[0006] In the above technical solution, a first sealing ring group and a second sealing ring group are respectively provided on the outer sides of both ends of the connecting pipe. The connecting pipe is sealedly connected to the inner side of the gas tank base through the first sealing ring group, and the connecting pipe is sealedly connected to the inner side of the cylinder base of the cylinder through the second sealing ring group.

[0007] In the above technical solution, an arc-shaped connecting portion is provided on the gas tank base, and the connecting portion is in contact with the outer wall surface of the cylinder body. The gas tank base is fixedly connected to the cylinder body by two bolts passing through transversely.

[0008] In the above technical solution, the two sides of the floating piston are respectively an air chamber and an oil chamber, the side of the tank body close to the gas tank end cover is the air chamber, and the side close to the gas tank base is the oil chamber.

[0009] In the above technical solution, an oil passage connecting the oil chamber and the cylinder is provided in the gas tank base.

[0010] To sum up, the beneficial effects of the technical solution of the utility model compared with traditional technical means are: the utility model changes the gas tank into a backpack structure, which is directly fixed to the cylinder of the shock absorber. There is no need for an external airbag and consideration of the fixation of the airbag. The structure is simple, fixed accessories are eliminated, costs are saved, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description in conjunction with the accompanying drawings.

[0012] Figure 1 It is a schematic diagram of the prior art of the utility model;

[0013] Figure 2 It is a main schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the front cross-sectional view of the utility model;

[0015] Figure 4 for Figure 3 A partial enlarged view of

[0016] Figure 5 It is a three-dimensional schematic diagram of the base in the utility model;

[0017] Figure 6 It is a cross-sectional schematic diagram of the base in the utility model;

[0018] The numbers are as follows: 100, cylinder; 110, cylinder base; 200, piston mechanism; 210, piston rod; 300, compensating gas tank; 310, tank body; 311, air chamber; 312, oil chamber; 320, gas tank end cover; 321, one-way gas valve; 330, gas tank base; 331, connecting part; 400, connecting pipe; 410, first sealing ring group; 420, second sealing ring group. DETAILED DESCRIPTION

[0019] The following is an ideal embodiment of the utility model. Through the following description, relevant staff can make various changes and modifications without departing from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

[0020] The utility model is further described with reference to the following drawings:

[0021] like Figures 3 to 6As shown, a backpack-type gas tank structure mono-tube shock absorber has a cylinder 100, in which a piston mechanism 200 is installed, a compensation gas tank 300 is provided on one side of the cylinder 100, and the compensation gas tank 300 includes a tank body 310, and both ends of the tank body 310 are respectively provided with a gas tank end cover 320 and a gas tank base 330, a floating piston 340 is provided in the tank body 310, and the gas tank base 330 is fixedly connected to the outer surface of the cylinder 100, the inner cavity of the tank body 310 is communicated with the inner cavity of the cylinder 100 through a connecting pipe 400, and a one-way gas valve 321 is provided on the gas tank end cover 320.

[0022] The connecting pipe 400 is provided with a first sealing ring group 410 and a second sealing ring group 420 at the outer sides of both ends respectively. The connecting pipe 400 is sealedly connected to the inner side of the gas tank base 330 through the first sealing ring group 410, and the connecting pipe 400 is sealedly connected to the inner side of the cylinder base 110 of the cylinder 100 through the second sealing ring group 420.

[0023] like Figure 5 , 6 As shown, the gas tank base 330 is provided with an arc-shaped connecting portion 331, and the connecting portion 331 is in contact with the outer wall surface of the cylinder 100. The gas tank base 330 is fixedly connected to the cylinder 100 by two transversely penetrating bolts.

[0024] like Figure 3 As shown, the two sides of the floating piston 340 are respectively an air chamber 311 and an oil chamber 312 , the side of the tank body 310 close to the gas tank end cover 320 is the air chamber 311 , and the side close to the gas tank base 330 is the oil chamber 312 .

[0025] like Figure 3 As shown, an oil passage connecting the oil chamber 312 and the cylinder 100 is provided in the gas tank base 330 .

[0026] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A backpack gas tank structure monotube shock absorber, comprising a cylinder, wherein a piston mechanism is installed in the cylinder, and characterized in that: A compensating gas tank is provided on one side of the cylinder body, and the compensating gas tank includes a tank body, and gas tank end covers and gas tank bases are respectively provided at both ends of the tank body. A floating piston is provided in the tank body, and the gas tank base is fixedly connected to the outer side surface of the cylinder body. The inner cavity of the tank body is communicated with the inner cavity of the cylinder body through a connecting pipe, and a one-way gas valve is provided on the gas tank end cover.

2. The backpack-type gas tank structure monotube shock absorber according to claim 1, characterized in that: A first sealing ring group and a second sealing ring group are respectively provided on the outer sides of both ends of the connecting pipe. The connecting pipe is sealedly connected to the inner side of the gas tank base through the first sealing ring group, and the connecting pipe is sealedly connected to the inner side of the cylinder base of the cylinder through the second sealing ring group.

3. The backpack-type gas tank structure monotube shock absorber according to claim 1, characterized in that: An arc-shaped connecting portion is arranged on the gas tank base, and the connecting portion is in contact with the outer wall surface of the cylinder body. The gas tank base is fixedly connected to the cylinder body by two bolts penetrating transversely.

4. The backpack-type gas tank structure monotube shock absorber according to claim 1, characterized in that: The two sides of the floating piston are respectively an air chamber and an oil chamber. The side of the tank body close to the gas tank end cover is the air chamber, and the side close to the gas tank base is the oil chamber.

5. The backpack-type gas tank structure monotube shock absorber according to claim 4, characterized in that: An oil passage connecting the oil chamber and the cylinder is arranged in the gas tank base.

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