CN213899712U

CN213899712U - Inflatable shock absorber

Info

Publication number: CN213899712U
Application number: CN202022717753.8U
Authority: CN
Inventors: 谢逸斌; 谢小贤
Original assignee: Wuxi Datong Shock Absorption Technology Co ltd
Current assignee: Wuxi Datong Shock Absorption Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-06
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to an inflatable bumper shock absorber. In particular to an inflatable shock absorber with air leakage protection function. The piston comprises a cylinder body and a piston rod, wherein a floating piston is arranged in the cylinder body, and an oil cavity and an air cavity are respectively arranged on two sides of the floating piston. A piston is arranged in the oil cavity, a piston rod is arranged at one end of the cylinder body adjacent to the oil cavity, and one end of the piston rod extends into the oil cavity and is connected with the piston. One end of the cylinder body adjacent to the air cavity is connected with an inflation connector, the inner end of the inflation connector is provided with an axial blind hole, and the side wall of the inflation connector corresponding to the axial blind hole is provided with a radial screw hole. The radial screw hole inner end has radial inner convex edge, has sealed pad and bolt in proper order in the radial screw hole outside the radial inner convex edge. The bolt is a tubular bolt, and the outer end of the bolt is axially provided with a radial outer convex edge. The method is characterized in that: the inner circle of the tubular bolt is provided with internal threads, and a sealing screw is screwed in the internal threads. By adopting the shock absorber, the air leakage condition can be avoided, the air supplement times are reduced, and the use is more convenient. It is suitable for automobile, motorcycle, etc.

Description

Inflatable shock absorber

Technical Field

The utility model relates to a shock absorber. In particular to an inflatable shock absorber with air leakage protection function, which is suitable for motor vehicles such as automobiles, motorcycles and the like.

Background

Currently, inflatable shock absorbers used in motor vehicles such as automobiles and motorcycles are all traditional inflatable shock absorbers. The inflatable shock absorber comprises a cylinder body and a piston rod, wherein a floating piston is arranged in the cylinder body, and an oil cavity and an air cavity are respectively arranged on two sides of the floating piston. A piston is arranged in the oil cavity, a piston rod is arranged at one end of the cylinder body adjacent to the oil cavity, and one end of the piston rod extends into the oil cavity and is connected with the piston. One end of the cylinder body adjacent to the air cavity is connected with an inflation connector, the inner end of the inflation connector is provided with an axial blind hole, and the side wall of the inflation connector corresponding to the axial blind hole is provided with a radial screw hole. The radial screw hole inner end has radial inner convex edge, has sealed pad and bolt in proper order in the radial screw hole outside the radial inner convex edge. The bolt is a tubular bolt, and the outer end of the bolt is axially provided with a radial outer convex edge. The gas in the gas chamber of the inflatable shock absorber is flushed by piercing the sealing gasket with the needle of the needle inflator. Because the bolt is a tubular bolt, the pinhole on the sealing gasket is usually positioned in the center of the tubular bolt, so that the gas in the gas cavity can slowly leak. Therefore, the air is needed to be supplied to the air cavity by the needle type air charging device frequently, and the air leakage is quicker and the use is more troublesome when the air charging frequency is more and the needle holes are more,

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide an inflatable bumper shock absorber. By adopting the shock absorber, the air leakage condition can be avoided, the air supplement times are reduced, and the use is more convenient.

The utility model discloses the above-mentioned problem that solves is realized by following technical scheme:

the utility model discloses an inflatable bumper shock absorber, including cylinder body and piston rod, there is floating piston in the cylinder body, and floating piston both sides have oil pocket and air cavity respectively. A piston is arranged in the oil cavity, a piston rod is arranged at one end of the cylinder body adjacent to the oil cavity, and one end of the piston rod extends into the oil cavity and is connected with the piston. One end of the cylinder body adjacent to the air cavity is connected with an inflation connector, the inner end of the inflation connector is provided with an axial blind hole, and the side wall of the inflation connector corresponding to the axial blind hole is provided with a radial screw hole. The radial screw hole inner end has radial inner convex edge, has sealed pad and bolt in proper order in the radial screw hole outside the radial inner convex edge. The bolt is a tubular bolt, and the outer end of the bolt is axially provided with a radial outer convex edge. The method is characterized in that: the inner circle of the tubular bolt is provided with internal threads, and a sealing screw is screwed in the internal threads.

The outer end of the sealing screw is provided with a screw cover, and an O-shaped sealing ring is arranged between the periphery of the screw cover and the outer end of the tubular bolt.

According to the scheme, the internal thread is processed on the inner circle of the tubular bolt, and the sealing screw is screwed in the internal thread. By screwing the sealing screw, the sealing of the pinhole on the sealing pad is realized, and the gas leakage in the gas cavity is avoided. Compared with the background technology, the needle type inflating device is not needed to frequently inflate the air in the air cavity, the air inflating times are reduced, and the use is more convenient. And because the O-shaped sealing ring is arranged between the periphery of the nail cover and the outer end of the tubular bolt, the air leakage condition is further avoided.

Drawings

FIG. 1 is a schematic view of the inflatable shock absorber of the present invention;

fig. 2 is an enlarged view of a circled portion of fig. 1.

Detailed Description

As shown in fig. 1 and 2, the inflatable shock absorber of the present invention comprises a cylinder 13 and a piston rod 1, wherein a floating piston 4 is disposed in the cylinder 13, and an oil chamber 3 and an air chamber 5 are disposed on two sides of the floating piston 4 respectively. A piston 2 is arranged in the oil cavity 3, and the piston rod 1 penetrates through the oil cavity 3 from one end adjacent to the oil cavity 3 and then is connected with the piston 2. One end of the cylinder body 13 adjacent to the air cavity 5 is connected with an inflation connector 8, an axial blind hole is processed at the inner end of the inflation connector 8, and a radial screw hole is processed on the side wall of the inflation connector 8 corresponding to the axial blind hole. The inner end of the radial screw hole is provided with a radial inner convex edge 6, and a sealing gasket 7 and a bolt 12 are sequentially arranged in the radial screw hole outside the radial inner convex edge 6. The bolt 12 is a tubular bolt, the outer end of the bolt is axially processed with a radial outer convex edge, and the inner circle of the bolt is processed with an internal thread screwed with a sealing screw 11. A nail cover 10 is processed at the outer end of the sealing screw 11, and an O-shaped sealing ring 9 is arranged between the periphery of the nail cover 10 and the outer end of the tubular bolt. By screwing the sealing screw 11, the sealing of the pinhole on the sealing gasket 7 is realized, and the gas leakage in the gas cavity 5 is avoided.

Claims

1. An inflatable shock absorber comprises a cylinder body (13) and a piston rod (1), wherein a floating piston (4) is arranged in the cylinder body (13), and an oil cavity (3) and an air cavity (5) are respectively arranged on two sides of the floating piston (4); a piston (2) is arranged in the oil cavity (3), a piston rod (1) is arranged at one end of a cylinder body (13) adjacent to the oil cavity (3), and one end of the piston rod (1) extends into the oil cavity (3) and is connected with the piston (2); one end of the cylinder body (13) adjacent to the air cavity (5) is connected with an air charging connector (8), the inner end of the air charging connector (8) is provided with an axial blind hole, and the side wall of the air charging connector (8) corresponding to the axial blind hole is provided with a radial screw hole; a radial inner convex edge (6) is arranged at the inner end of the radial screw hole, and a sealing gasket (7) and a bolt (12) are sequentially arranged in the radial screw hole outside the radial inner convex edge (6); the bolt (12) is a tubular bolt, and the outer end of the bolt is axially provided with a radial outer convex edge; the method is characterized in that: the inner circle of the tubular bolt is provided with internal threads, and a sealing screw (11) is screwed in the internal threads.

2. The pneumatic shock absorber of claim 1, wherein: the outer end of the sealing screw (11) is provided with a nail cover (10), and an O-shaped sealing ring (9) is arranged between the periphery of the nail cover (10) and the outer end of the tubular bolt.