Integral multi-way reversing valve

A multi-way reversing valve, integrated technology, applied in the direction of multi-way valves, valve details, valve devices, etc., can solve the problems of large leakage between sheets and sheets, easy oil pollution, large pressure loss, etc. High pressure, good compactness, control loss effect

Inactive Publication Date: 2010-09-29
WUHAN LAZY CAT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an integral multi-way reversing valve to overcome the large pressure loss, rapid oil temperature rise, and leakage between the plates during the use of the existing plate-type multi-way reversing valve. The problem of large amount and easy contamination of oil

Method used

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  • Integral multi-way reversing valve
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  • Integral multi-way reversing valve

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Embodiment Construction

[0015] Such as Figure 1-4 As shown, the integrated multi-way reversing valve according to the embodiment of the present invention includes a control handle, a valve body 1, an end cover 9 and a front cover 8. The control handle is composed of a handle 16, a control rod 15, and a pin shaft 12. The upper end of the joystick 15 is connected to the handle 16, and the lower end is connected to the pin shaft 12 through threads. The upper part of the pin shaft 12 is provided with a fastening nut 17, and the lower part of the pin shaft 12 is connected to the end cap 9 by a pin 13 The valve body 1 is provided with a valve stem 2, and the valve body 1 is provided with a plug hole 21 on the outside. The plug hole 21 is provided with an M16x1 plug 18 and an O-ring 20 at its connection, The outside of the plug hole 21 is sealed by a G3 / 8 plug 19; both ends of the valve body 1 are threadedly connected to the end cover 9 and the front cover 11, and the connection between the valve body 1 and...

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Abstract

The invention relates to an integral multi-way reversing valve, which comprises an operating handle, a valve body, an end cover and a front cover, wherein the upper end of an operating rod is connected with the handle, while the lower end is connected with a pin shaft through screw threads; the upper part of the pin shaft is provided with a clamp nut, and the lower part of the pin shaft is connected with the end cover through pins; a valve rod is arranged inside the valve body, a plug hole is formed outside the valve body, and two ends of the valve body are connected with the end cover and a front cover thread respectively; and a spring, a stroke gasket and a retainer ring are arranged in the end cover. The integral multi-way reversing valve has the following advantages that: an oil inlet valve body, a reversing valve body and an oil return valve body are integrated by adopting an integral casting process, and small mass, simple appearance and smooth transition of the cavity of the valve enable a complex flow passage not to affect the pressure loss of liquid so as to well control the loss of oil pressure, shorten the time of hydraulic oil flowing through the valve body and ensure the purity of the hydraulic oil; castings have good compactness and high bearing pressure; and the problem of leakage between sheets of a sheet valve does not exit.

Description

Technical field [0001] The invention relates to an integral multi-way reversing valve. Background technique [0002] At present, the multi-way directional valve on the market, due to its strong versatility and high operating pressure, is widely used in hydraulic systems such as engineering machinery, mining and metallurgical machinery, crane transportation machinery and light industry machinery, as a direction control device, The multi-way reversing valve is divided into machining channel and casting channel from the flow channel method, and into the chip valve and the integral valve from the overall perspective. However, the pressure loss of the chip valve is often large during the use process. , The oil temperature rises quickly, and the leakage between the plates is not good due to the poor sealing, and the leakage will inevitably cause problems such as oil pollution. There are no integrated cast runner directional valves among domestic manufacturers. The overall multi-way re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K11/00F16K31/12
Inventor 刘华
Owner WUHAN LAZY CAT TECH
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