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Threaded cartridge type manual proportional reversing valve

A proportional reversing valve and threaded cartridge technology, which is applied to valve details, multi-way valves, valve devices, etc., can solve the problems of unable to control the maximum flow rate and poor accuracy, and achieve the effect of preventing injury accidents and preventing misoperation

Inactive Publication Date: 2015-10-07
江苏菲尔特液压机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it solves the locking problem of the manual reversing valve to a certain extent, its accuracy is poor and the maximum flow cannot be controlled

Method used

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  • Threaded cartridge type manual proportional reversing valve

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Effect test

Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing:

[0013] A threaded plug-in manual proportional reversing valve, including a handle 1, a valve head assembly 15, the handle 1 is connected and fixed to the transmission shaft 14 through a cap 2, and also includes a limiting device and a locking device. The limiting device It is composed of an upper limit 4, a lower limit 5 and a protective sleeve 3. The groove formed by the upper limit 4 and the lower limit 5 is matched with the raised part of the transmission rod; the valve head assembly 15 is fixed with a nut 9 , the nut 9 is threaded with a knob 7, and the knob 7 is threaded with the locking valve core 12 and fixed by a fastening pin 8.

[0014] The locking spool is provided with a column pin 10; the nut 9 is provided with an "L"-shaped groove matching with the column pin 10; the locking spool 12 is integrally forged by alloy steel; the The lower end of the locking...

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PUM

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Abstract

A threaded cartridge type manual proportional reversing valve comprises a handle, a transmission shaft, a limiting device and a locking device, wherein the handle is connected to and fixed on the transmission shaft through a cap, the limiting device is composed of an upper limiting part, a lower limiting part and a protecting jacket, a groove formed by the upper limiting part and the lower limiting part is matched with the protruded part of a transmission rod, the locking device comprises a spring, a locking valve element, a seal seat and a valve head assembly, a nut is fixed on the valve head assembly and connected with a rotary knob through a thread, and the rotary knob is in threaded connection with the locking valve element and is fixed through a holding pin. Compared with the prior art, according to the threaded cartridge type manual proportional reversing valve, the limiting device is additionally arranged, and the maximum flow can be effectively controlled; the locking device is improved, misoperation can be effectively prevented, and therefore injury accidents of maintenance personnel are effectively prevented.

Description

technical field [0001] The invention relates to a hydraulic control actuator, in particular to a threaded cartridge type manual proportional reversing valve. Background technique [0002] Manual reversing valve is a reversing valve that controls the flow port by hand. It is characterized in that it does not need a power control part, and is suitable for work occasions where the reversing is manually controlled. However, the positioning of the usual manual reversing valve is achieved by springs and steel balls. It is characterized by poor positioning reliability. When the handle encounters an unexpected external force, it will change direction, causing the valve to malfunction, resulting in safety problems. . [0003] Patent No. 201420031247.5 discloses a manual reversing valve with a self-locking device. By hinged the hand shaft and the hinge shaft, and setting a positioning block, the hand rod rotates through the hinge shaft and snaps into the positioning slot of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/60F16K11/02
CPCF16K31/605F16K11/02
Inventor 沈栋炼
Owner 江苏菲尔特液压机械有限公司
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