Hydraulic control valve and getting-off support leg control system of firefighting vehicle with hydraulic control valve

A technology of hydraulic control valve and hydraulic oil circuit, which is applied to mechanical equipment, fluid pressure actuating device, servo motor components, etc., can solve the problems of laborious operation, difficulty in ensuring the leveling accuracy of the body, and inconvenient observation of the working conditions of the outriggers. , to achieve the effect of facilitating operation, enhancing equipment operability and environmental adaptability, and improving mobility

Active Publication Date: 2012-04-25
XCMG FIRE FIGHTING SAFETY EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Since the reversing valve 3-1 is a manual multi-way reversing valve, it can only be con

Method used

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  • Hydraulic control valve and getting-off support leg control system of firefighting vehicle with hydraulic control valve
  • Hydraulic control valve and getting-off support leg control system of firefighting vehicle with hydraulic control valve
  • Hydraulic control valve and getting-off support leg control system of firefighting vehicle with hydraulic control valve

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Embodiment Construction

[0044] The core of the present invention is to provide a hydraulic control valve. The valve has a remote electronic control function, which can significantly improve the vehicle's operating performance, leveling accuracy and environmental adaptability.

[0045] Another core of the present invention is to provide a fire truck alighting outrigger control system provided with the control valve.

[0046] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] Please refer to figure 2 , figure 2 It is a hydraulic principle diagram of a specific embodiment of the hydraulic control valve provided by the present invention.

[0048] In a specific embodiment, the hydraulic control valve provided by the present invention is an integrated valve, which is integrated with four main reversing valv...

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PUM

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Abstract

The invention discloses a hydraulic control valve. A plurality of main reversing valves on a hydraulic oil channel in parallel are integrated in the hydraulic control valve, and each main reversing valve is provided with a pilot control end and an electric control pilot device; and each electric control pilot device comprises a pilot reversing valve and a reversing cylinder, piston rods of the reversing cylinders are connected with the pilot control ends of the main reversing valves in a transmission way, and three working states can be realized. The hydraulic control valve can be controlled manually and remotely for manual and electric control operations. Due to the remote control function, the operability and the environmental adaptability of equipment can be enhanced, and the leveling accuracy as well as the mobility and the convenience in operation of the whole vehicle can be improved. In case of failure in electric control, the manual operation can be used as an emergency operation mode. The invention discloses a getting-off support leg control system of a firefighting vehicle with the hydraulic control valve.

Description

technical field [0001] The invention relates to the technical field of hydraulic transmission, in particular to a hydraulic control valve of a fire truck. The invention also relates to a control system for the outriggers of the fire truck provided with the hydraulic control valve. Background technique [0002] With the continuous improvement of fire truck technology, the degree of automation and intelligence of equipment has been continuously improved, and the complexity of various structures and systems of fire trucks has also increased. The hydraulic system is the main transmission and control system of fire trucks. , must also continue to carry out technological improvement and innovation. [0003] The electrical system of the fire truck and the gas circuit system cooperate to complete the power take-off control and throttle control. The oil pump obtains mechanical energy from the automobile engine and converts it into the pressure energy of hydraulic oil to provide powe...

Claims

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Application Information

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IPC IPC(8): F15B13/043
Inventor 徐小东孔德美卢良卫
Owner XCMG FIRE FIGHTING SAFETY EQUIP CO LTD
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