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Working valve block and forklift

A technology of working valves and working oils, which is applied in the direction of multi-way valves, valve devices, valve details, etc., can solve the problems of poor stability of the lifting commutator and achieve the effect of improving stability

Pending Publication Date: 2022-06-24
ZHEJIANG HAIHONG HYDRAULIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a working valve block and a forklift to solve the problem of poor stability of the existing lifting commutator

Method used

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  • Working valve block and forklift
  • Working valve block and forklift
  • Working valve block and forklift

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Embodiment Construction

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the indicated device or Elements must have a particular orientation, be constructed and operate in a particular orientation and are therefore not to be construed as limitations on this application.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number ...

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Abstract

The working valve block comprises a valve body, a valve rod and a differential one-way valve, the valve body is provided with a valve cavity, an oil inlet channel, a working oil channel, an oil return channel and a first pressure relief flow channel, the differential one-way valve is arranged in the working oil channel and used for blocking the working oil channel, and the differential one-way valve is provided with a hydraulic cavity; the end, away from the valve cavity, of the working oil channel communicates with the first pressure relief runner through the hydraulic cavity. The valve rod is movably arranged in the valve cavity, when the valve rod is located at the first position, the oil inlet channel communicates with the working oil channel through the valve cavity, when the valve rod is located at the second position, the working oil channel communicates with the oil return channel through the valve cavity, and the first pressure relief flow channel communicates with the oil return channel through the valve cavity. According to the working valve block and the forklift provided by the invention, the problem of poor stability of the existing lifting commutator segment is solved.

Description

technical field [0001] The application relates to the technical field of construction machinery, in particular to a working valve block and a forklift. Background technique [0002] As an industrial handling vehicle, forklift is indispensable to the development of modern industry. Industrial handling vehicles are widely used in ports, stations, airports, freight yards, factory workshops, warehouses, distribution centers and distribution centers, etc., and forklifts can enter the cabins, carriages and containers for loading, unloading, and handling of palletized goods, which is pallet transportation. , essential equipment in container transportation. [0003] Usually, the forklift controls the lifting, lowering and stagnation of the forklift mast through the lifting reversing plate. Especially during the standstill of the forklift gantry, it is necessary to ensure that the forklift gantry remains stable. The existing hoisting diverter piece has poor stability, which may ea...

Claims

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Application Information

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IPC IPC(8): F15B13/02F16K11/10F16K27/04B66F9/22
CPCF15B13/02F16K11/10F16K27/04B66F9/22B66F9/205F15B2013/002
Inventor 张辉卢佳杰孙一帆钟麒何贤剑陈莉
Owner ZHEJIANG HAIHONG HYDRAULIC TECH
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