Damping-adjustable shock absorber with limit function

A shock absorber and reconciling technology, applied in the field of auto parts, can solve the problems of difficult control of ball valve matching, difficult installation of ball valves, easy leakage, etc., and achieve the effects of simple structure, convenient and fast operation, and convenient conversion.

Pending Publication Date: 2020-07-03
ZHEJIANG ROADTAMER AUTO SUSPENSION SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the ball valve is relatively difficult to install, and the fit of the ball valve is difficult to control, and it is prone to leakage
[0008] The market needs a shock absorber with adjustable damping and limit functions at the same time, but the existing products can only realize one of the functions of adjustable damping or limit, and it is impossible to realize both adjustable damping and limit in the shock absorber. bit two functions
The existing adjustable damping gas spring structure is used for the double-tube structure, and it needs to be designed separately for the single-tube structure, and the limit function cannot be realized; the limiter has a limit locking function, but it cannot provide damping

Method used

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  • Damping-adjustable shock absorber with limit function
  • Damping-adjustable shock absorber with limit function
  • Damping-adjustable shock absorber with limit function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] refer to Figure 1-5 As shown, the present invention provides a shock absorber with adjustable damping and position-limiting function, which is mainly composed of a cylinder body 1 and an auxiliary pipe 2, the cylinder body 1 is provided with a hollow piston rod 3, and the hollow piston rod 3 has an end section 30 located inside the cylinder, and the end section 30 is provided with a piston 4, and the piston 4 divides the inside of the cylinder 1 into a recovery chamber 10 and a compression chamber 11 with a variable volume, and the The piston 4 is provided with an oil hole 40 for the oil supply to circulate between the recovery chamber and the compression chamber; the end section 30 is provided with a flow control passage 300, and the flow control passage 300 is in constant conduction with the compression chamber. Pass; the control rod 5 that controls the flow control passage 300 to flow or block is sleeved inside the hollow piston rod 3, and a first hole communicating...

Embodiment 2

[0041] refer to Figure 6-7 As shown, this embodiment changes the structure of the regulating valve core 8 on the basis of Embodiment 1. In this embodiment, the regulating valve core 8 can rotate on the regulating block 7, and The end 80 of the regulating spool 8 is provided with a knob 801, the knob 801 can control the regulating spool 8 to rotate, and the main body 81 of the regulating spool 8 is provided with a through hole penetrating through the main body 81 of the regulating spool 811, the setting position of the through hole 811 is opposite to the oil channel 70, by rotating and adjusting the spool 8, the axial direction of the through hole 811 and the axial direction of the oil channel 70 can be coincident or perpendicular to each other, when the through hole 811 When the axial direction coincides with the axial direction of the oil passage 70, the oil passage 70 is opened, and the cylinder body 1 communicates with the auxiliary pipe 2; when the axial direction of the ...

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Abstract

The invention belongs to the technical field of automobile parts and relates to a damping-adjustable shock absorber with a limit function. The shock absorber comprises a cylinder and an auxiliary pipe, wherein a hollow piston rod is arranged on the cylinder, a flow control channel and a control rod used for adjusting the flow rate of the flow control channel are arranged on the hollow piston rod,a first hole and a second hole are formed in the control rod, a third hole is formed in the hollow piston rod, and the control rod can adjust the second hole to overlap with or stagger from the thirdhole so as to realize adjustment on damping of the shock absorber; and the cylinder is connected with the auxiliary pipe and communicates with the auxiliary pipe, an adjustment block is arranged on the auxiliary pipe, an adjustment valve element which can control the cylinder to communicate with or cut off the auxiliary pipe is arranged on the adjustment block, and a floating piston which dividesthe auxiliary pipe into an oil pressure cavity and an air pressure cavity is arranged inside the auxiliary pipe. The shock absorber can perform damping adjustment, also can perform limiting and is simple in structure, convenient to operate and wide in application range.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a shock absorber with adjustable damping and a position-limiting function. Background technique [0002] With the development of the automobile industry, the requirements for automobile safety and comfort are becoming more and more detailed. In terms of driving comfort and safety, including but not limited to chassis suspension and seat suspension structure can be guaranteed. [0003] In terms of chassis suspension, large trucks and high-end cars have long used air suspensions. Early air suspensions used airbags as elastic elements to provide support and stiffness, and conventional double-tube or single-tube shock absorbers as damping elements to provide damping. , and install the auxiliary spring as an emergency part to prevent accidents such as rollover and rollover due to failure of the airbag. The automobile industry developed further in the later period, and damping adju...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/06F16F9/32F16F9/34F16F9/44F16F9/58
CPCF16F9/062F16F9/063F16F9/3214F16F9/3221F16F9/34F16F9/44F16F9/58F16F2222/12F16F2224/04F16F2228/066
Inventor 黄震周惠妮毛志成
Owner ZHEJIANG ROADTAMER AUTO SUSPENSION SYST
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