Integrated manual multiple directional control valve for lader

A multi-way reversing valve, integrated technology, applied in lifting devices, mechanical equipment, fluid pressure actuating devices, etc., can solve problems such as safety accidents, high internal leakage, and difficult processing of hollow valve stems

Inactive Publication Date: 2005-01-05
尚继良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the reversing valve with this structure, due to the split structure between the main valve body and the overload valve body, under high temperature and high pressure, the sealing ring between the main valve body and the overload valve body is easy to age and deform. The joint surface between the valve bodies is prone to oil leakage, causing environmental pollution and wasting resources; because the valve stem is a hollow structure and the check valve is built in, the diameter of the valve stem is large, and the circumference line matching the valve body hole is long. The leakage is relatively high, and because the hollow valve stem is difficult to process and the quality is difficult to guarantee, the valve stem is prone to "clamping" and excessive operating force; due to the leakage characteris...

Method used

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  • Integrated manual multiple directional control valve for lader
  • Integrated manual multiple directional control valve for lader
  • Integrated manual multiple directional control valve for lader

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Embodiment Construction

[0020]The integrated manual multi-way reversing valve for the loader shown in the accompanying drawing has three through holes, the first hole 31, the second hole 32, and the third hole 33, along the bottom of the valve body 5. A fifth hole 35 and a sixth hole 36 are oppositely arranged above the hole 32, and a fourth hole 34 is arranged above the third hole 33 and on the same side as the sixth hole 36. In the longitudinal direction near the first hole 31 There is a high-pressure oil inlet 6 on the side, an oil return port 37 is opened on the opposite side of the high-pressure oil inlet 6 and the lower bottom surface of the valve body 5, and an oil return port 37 is opened on the lower bottom surface of the valve body 5 perpendicular to the second hole 32. The unloading bucket oil port 43 and the bucket receiving oil port 44 have a boom lowering oil port 41 and a boom lifting oil port 17 on the upper bottom surface of the valve body 5 perpendicular to the fourth hole 34; The f...

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Abstract

The invention discloses a integral manual multi-path reversal valve applied in loader, which includes integral valve, six apertures are drilled in the valve, three of them are connected with oil inputting channel and the return channel, the valve has a inlet and a return outlet connected to the channels, the aperture is assembled with a moving arm valve pole, rotary valve pole, safe valve, overload valve, outlay common single-way valve and hydraulic control lock device, the moving arm valve pole and the rotary valve pole are the solid valve pole, the hydraulic control lock has pilot and double-direction starting functions, it is sealed in the oil path with the circle line. The valve hydraulic oil has no leakage, the inner leakage is small, it can prevent the moving arm form falling, avoids the lock and oversize manipulating force, it is safe and flexible.

Description

technical field [0001] The invention relates to an integral manual multi-way reversing valve for a loader. Background technique [0002] The existing integrated manual multi-way reversing valve for loaders is equipped with two overload valve bodies on the main valve body, and an oil inlet circuit and an oil return circuit are arranged between each overload valve body and the main valve body. , the overload valve body is installed with an overload valve, the main valve body is equipped with a hole for installing the bucket valve stem and the boom valve stem, the bucket valve stem and the boom valve stem are all hollow structures, and different oil grooves are provided on each hole The oil tanks are connected by the high-pressure oil inlet and the low-pressure oil return. By moving the bucket valve stem and the boom valve stem in different positions in the hole, the oil tank is connected with the high-pressure oil inlet and the low-pressure oil return. To achieve different re...

Claims

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Application Information

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IPC IPC(8): B66F9/06F15B13/02
Inventor 尚继良
Owner 尚继良
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