Small-volume low-rigidity airbag spring

A low-stiffness, small-volume technology, used in springs, springs/shock absorbers, gas shock absorbers, etc., can solve the problem of low utilization of airbag effective volume, achieve small occupied space, constant natural frequency, and improve utilization. Effect

Pending Publication Date: 2018-04-13
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects and problems of the low utilization rate of the effective volume of the airbag in the prior art, and provide a small-volume low-rigidity airbag spring with a high utilization rate of the effective volume of the airbag

Method used

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  • Small-volume low-rigidity airbag spring
  • Small-volume low-rigidity airbag spring
  • Small-volume low-rigidity airbag spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] see Figure 1 to Figure 4 , a small-volume low-rigidity airbag spring, comprising an outer capsule body 2, an upper cover plate 3, a piston 4 and a buffer block 1, the top port 21 and the bottom port 22 of the outer capsule body 2 are respectively connected to the upper cover plate 3, the piston 4 are connected, and a buffer block 1 is provided inside the outer capsule body 2; the outer capsule body 2 includes a top bag portion 23, a side bag portion 24, a concave bag portion 25 and a bottom bag portion 26, and the top bag portion 23 The middle part is the top port 21, the inner wall of the top port 21 is connected with the outer wall of the upper cover plate 3 embedded therein, the bottom end of the top bag part 23 is connected with the top end of the side bag part 24, and the bottom of the side bag part 24 end is connected with the bottom end of the pocket part 25, and the top end of the pocket part 25 is connected with the top end of the bottom pocket part 26, and th...

Embodiment 2

[0055] Basic content is the same as embodiment 1, the difference is:

[0056] The middle part of the flange tray 5 is provided with a through hole 51 in the tray, and the middle part of the buffer block 1 is provided with a shaft through hole 11. The through hole 51 in the tray is connected with the shaft through hole 11 through a long connector 8, and the long connector 8 The bottom of the long connector 8 is located inside the through hole 51 in the tray, and the top of the long connector 8 is located inside the shaft through hole 11 . Preferably, the long connecting piece 8 is a hexagon socket head bolt, comprising interconnected bolt heads 81 and bolt posts 82, the diameter of the bolt heads 81 is greater than the diameter of the bolt posts 82, and the bottom surface of the bolt heads 81 is flush with the bottom surface of the through hole 51 in the tray , the intersection of the bolt head 81 and the bolt column 82 coincides with the intersection of the through hole 51 in ...

Embodiment 3

[0058] Basic content is the same as embodiment 1, the difference is:

[0059] Preferably, the buffer block 1 is a frustum of cone with a narrow top and a wide bottom. Preferably, the position connected to the inner wall of the top port 21 on the upper cover plate 3 and the position connected to the inner wall of the bottom port 22 on the outer wall of the piston 4 are all provided with an annular groove 9, and the effect of the annular groove 9 is to enhance the sealing performance on the one hand. On the other hand, it is to increase the holding (friction) force to prevent the separation of the airbag from the upper cover plate 3 and the piston 4; the upper ring of the outer wall of the top port 21 connected with the upper cover plate 3 is provided with an upper hoop 27 , The bottom port 22 is provided with a lower hoop 28 on the outer wall upper ring of the part connected to the piston 4 . Preferably, the number of tray-side through holes 52 is four, and they are uniformly ...

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PUM

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Abstract

A small-volume low-rigidity airbag spring comprises an outer bag body, an upper cover plate, a piston, a buffer block and a flange tray; the middle part of a top bag part of the outer bag body is connected with the upper cover plate; the bottom end of the top bag part passes through a side bag part and a concave bag part sequentially and then is connected with the top end of a bottom bag part; thebottom end port of the middle part of the bottom bag part is connected with the piston; the connection position of the concave bag part and the bottom bag part is higher than the connection positionof the concave bag part and the side bag part; the inner wall of the piston is in lap joint with the outer wall of the flange tray; the middle part of the flange tray is fixedly connected with the buffer block; the flange tray is provided with at least two tray side through holes around the buffer block; the at least two tray side through holes communicate with a main gas chamber and an additionalgas chamber; and the bottom of the piston is connected with an airbag base through a piston pin handle with external thread. According to the design, the internal effective volume and the utilizationrate of the airbag can be increased and the connection firmness is high; furthermore, the structure is simple and a buffer limiting function can be realized.

Description

technical field [0001] The invention relates to an air bag spring, in particular to a small volume and low rigidity air bag spring, which is particularly suitable for improving the utilization rate of the effective volume inside the air bag while buffering the vibration transmitted from the chassis. Background technique [0002] The function of the air bag spring in the prior art is to alleviate the vibration transmitted from the chassis due to uneven roads, so as to improve the ride comfort. [0003] The authorized announcement number is CN202901154U, and the utility model patent with the authorized announcement date on April 24, 2013 discloses an air spring shock-absorbing airbag, which includes a cover plate and a rubber part that is arranged at the lower end of the cover plate. The lower part of the rubber part There is a piston, and a buffer device is installed inside the piston. The buffer device includes a contact block fixedly attached to the inner wall of the cover ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/04F16F9/32
CPCF16F9/0454F16F9/3207
Inventor 郭凯魏铭陈玲莉吴小华赵庆福吕文兵
Owner DONGFENG COMML VEHICLE CO LTD
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