An oil-pneumatic spring base assembly integrating a vehicle height sensor and a valve group

A technology of oil-gas spring and base assembly, applied in the direction of spring, spring/shock absorber, shock absorber, etc., can solve the problems of high process requirements, complex structure, many installation steps, etc., to improve reliability and accuracy, optimize The effect of using the environment

Active Publication Date: 2022-03-29
DONGFENG OFF ROAD VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil-gas spring needs not only a one-way valve to control the flow direction of the liquid, but also an unloading valve to protect the oil-gas spring when the impact is too large. If the split installation is adopted, the structure will be complicated, the installation steps will be numerous, and the process requirements will be high. In the one-way pressure relief integrated valve disclosed in CN201439828, the vehicle height sensor cannot be installed on the base because the valve core is located at the center

Method used

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  • An oil-pneumatic spring base assembly integrating a vehicle height sensor and a valve group
  • An oil-pneumatic spring base assembly integrating a vehicle height sensor and a valve group
  • An oil-pneumatic spring base assembly integrating a vehicle height sensor and a valve group

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Embodiment Construction

[0035] The following specific examples illustrate the present invention in further detail.

[0036] Such as Figure 1-3 As shown, the present invention provides an oil-pneumatic spring base assembly integrating a vehicle height sensor and a valve group, including a base 2 sealed and arranged on the upper end of the cylinder 1, and a vehicle height sensor 3 and valves arranged in the cylinder 1 Group 4, the vehicle height sensor 3 includes an electronic head 31 connected up and down and a sensing rod 32, the electronic head 31 is sealed and installed on the base 2, and the sensing rod 32 passes through the valve group 4 downward; the valve group 4 includes the same The ring-shaped upper pressure plate 5, valve seat 6, and lower pressure plate 7 connected by the shaft, the upper pressure plate 5 is fixedly connected with the base 2, the valve seat 6 is circumferentially sealed with the cylinder barrel 1 and the valve seat 6 is provided with a valve group The unloading through h...

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Abstract

The invention discloses an oil-pneumatic spring base assembly integrating a vehicle height sensor and a valve group. The ring-shaped upper pressure plate, valve seat, and lower pressure plate are coaxially connected sequentially from top to bottom. There are unloading through holes and one-way through holes connecting the inside and outside of the valve group. An unloading valve assembly is provided between the upper pressure plate and the valve seat; a one-way valve assembly is provided between the valve seat and the lower pressure plate. In the present invention, after the vehicle height sensor is installed on the base, the valve group is arranged around the vehicle height sensor, making full use of the internal radial space of the oil-pneumatic spring, so that the vehicle height sensor and the valve group are integrated in the oil-pneumatic spring, which optimizes the use environment and greatly improves the performance of the sensor. reliability and precision.

Description

technical field [0001] The invention relates to auto parts, in particular to an oil-pneumatic spring base assembly integrating a vehicle height sensor and a valve group. Background technique [0002] In the field of heavy-duty off-road vehicles and special equipment vehicles, the oil-pneumatic spring is a kind of elastic damping element of vehicle suspension with high energy density and excellent performance. The damping characteristics of ordinary oil and gas springs are invariable, and ordinary oil and gas springs are also called passive suspension vehicles. The technology of the adjustable damping shock absorber has become mature now. The Chinese invention patent application with the publication number CN109611493 A discloses a damping adjustment device for the oil-pneumatic spring. On the basis of the original structure of the oil-pneumatic spring, a newly added An oil circuit is used as the return oil circuit of the oil-gas spring, and the pilot proportional pressure r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/023F16F9/32F16F9/34F16F9/36B60G17/019
CPCF16F15/023F16F9/3207F16F9/3292F16F9/34F16F9/36B60G17/019B60G2400/252
Inventor 汪盛庞迪游劲松黄朝源张爱武
Owner DONGFENG OFF ROAD VEHICLE CO LTD
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