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Supporting leg oil cylinder control device of vehicle

A technology of a control device and an oil cylinder, applied in the field of vehicles

Pending Publication Date: 2020-11-10
刘剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The prior art vehicle's outrigger cylinder control device cannot automatically support the outrigger cylinder on the ground when parking brakes are performed in the cab at the front end of the vehicle and in the cab at the rear end, nor can it be realized in the front end of the vehicle. When the parking brake is released in the cab and the cab at the rear end, the outrigger cylinder can be automatically retracted

Method used

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  • Supporting leg oil cylinder control device of vehicle
  • Supporting leg oil cylinder control device of vehicle
  • Supporting leg oil cylinder control device of vehicle

Examples

Experimental program
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and given embodiments.

[0018] Such as figure 1 As shown, a vehicle foot cylinder control device includes an accumulator 31, a parking brake 32, a parking hydraulic cylinder 33, a first manual reversing valve 34, a fuel tank 50, a hydraulic pump 51 and a foot cylinder 52; the parking brake 32 includes several moving plates 32-1 and several stationary plates 32-2; the moving plates 32-1 and the stationary plates 32-2 are arranged alternately; the left end of the piston rod 33-1 of the parking hydraulic cylinder 33 is in contact with the moving plate The pieces 32 - 1 are offset or separated; the oil inlet of the hydraulic pump 51 communicates with the oil tank 50 .

[0019] Also includes the third manual reversing valve 1, the first hydraulic control reversing valve 2, the second hydraulic control reversing valve 3 and the third hydraulic control reversing valve 4; the ...

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Abstract

The invention provides a supporting leg oil cylinder control device of a vehicle. The device comprises an energy accumulator, a parking brake, a parking hydraulic cylinder, a first manual reversing valve, an oil tank, a hydraulic pump, a supporting leg oil cylinder, a third manual reversing valve, a first hydraulic control reversing valve, a second hydraulic control reversing valve and a third hydraulic control reversing valve. An execution port of the first manual reversing valve communicates with a first oil inlet of the first hydraulic control reversing valve, a control port of the first hydraulic control reversing valve and a second oil inlet of the second hydraulic control reversing valve respectively; and an execution port of the third manual reversing valve communicates with a second oil inlet of the first hydraulic control reversing valve, a control port of the second hydraulic control reversing valve and a first oil inlet of the second hydraulic control reversing valve respectively. According to the invention, the supporting leg oil cylinder can be automatically supported on the ground when parking braking is carried out in a cab at the front end or in the cab at the rearend, and the supporting leg oil cylinder can be automatically folded when parking braking is relieved in the cab at the front end or in the cab at the rear end of the vehicle.

Description

technical field [0001] The invention relates to a vehicle, in particular to a control device for a support cylinder of a vehicle. Background technique [0002] Some vehicles need to work in roadways with small cross-sections. It is very inconvenient to turn around when the vehicles are running in such roadways. When the vehicles cannot turn around, they need to drive forward and backward for a long distance. In order to improve driving comfort And safety, the vehicle needs to have two-way driving function. A vehicle with two-way driving function needs to have a driver's cab respectively at the front end and the rear end of the vehicle. [0003] Some vehicles need to work when the vehicle is stopped. For example, the lift truck needs to perform lifting work when the vehicle is stopped. In order to increase the lateral stability of the vehicle when it is working, the vehicle needs to be equipped with a foot cylinder control device. When the vehicle is stopped, it needs to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/08F15B1/02F15B13/04B60S9/12B60T13/70
CPCB60S9/12B60T13/70F15B1/02F15B11/08F15B13/04
Inventor 刘剑
Owner 刘剑
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