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An electromagnetic hydraulic control check valve

A technology of hydraulically controlled one-way valve and solenoid valve, which is applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., which can solve the problems of short pressure holding time, poor pressure holding effect, large leakage, etc., and achieve sealing good effect

Active Publication Date: 2018-05-25
德州博福智能液压装备制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this kind of pressure maintaining method that uses the reversing slide valve spool to seal the oil circuit, since the spool and the valve hole are sealed by a sliding gap, the leakage is large. The pressure holding time is short, the pressure holding effect is poor, and the work is unreliable

Method used

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  • An electromagnetic hydraulic control check valve
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Embodiment Construction

[0015] In order to clearly illustrate the features of this solution, the present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0016] like Figure 1-4 Shown: an electromagnetic hydraulic control check valve, including a solenoid valve 1 and a hydraulic control check valve 2, the hydraulic control check valve 2 includes a valve body and an upper end cover 3 arranged on the upper end of the valve body and an upper end cover arranged on the valve body The lower end cover 4 at the lower end is provided with a piston chamber 5 and a valve chamber 6 in the valve body. The piston chamber 5 is provided with a control piston 7, and the piston chamber 5 is divided into upper and lower parts. The valve chamber 6 is provided with a valve Seat 8, a one-way valve core 9 is installed on the valve seat 8, and a spring 10 is arranged below the one-way valve core 9. The top of the spring 10 is connected with the valve...

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Abstract

The invention relates to an electromagnetic hydraulic-control one-way valve. The electromagnetic hydraulic-control one-way valve comprises an electromagnetic valve body and a hydraulic-control one-way valve body. The hydraulic-control one-way valve body comprises a valve main body and an upper end cap arranged at the upper end of the valve main body and a lower end cap arranged at the lower end of the valve main body. A piston cavity and a valve cavity are formed in the valve main body, a control piston is arranged in the piston cavity to divide the piston cavity into an upper part and a lower part, and a valve seat is arranged in the valve cavity. On the basis of an existing common hydraulic-control one-way valve body, the electromagnetic valve body is additionally arranged on an end cap of the control piston end of the hydraulic-control one-way valve body, an electromagnetic valve oil way communicates with the bottom end of the piston of the hydraulic-control one-way valve body and the two sides of an oil inlet and an oil outlet correspondingly, so that the electromagnetic valve body is used for controlling opening and closing of the hydraulic-control one-way valve body at random; and the sealing property of the electromagnetic hydraulic-control one-way valve belongs to leakage-free cone valve sealing, thus, sealing of the electromagnetic hydraulic-control one-way valve is good, and reliable pressure maintaining of a one-way cylinder is achieved.

Description

Technical field: [0001] The invention relates to an electromagnetic hydraulic control one-way valve. Background technique: [0002] In the current hydraulic system, for double-acting cylinders, the most effective way to maintain pressure is to use a hydraulic control check valve. Directional valve (also called hydraulic lock). And for the single-acting oil cylinder, there is no easy and effective pressure maintaining method. This is because single-acting cylinders are generally used vertically. During work, oil enters the rodless chamber, pushes the piston rod, and the load rises. The oil inlet circuit is sealed to maintain pressure and keep the load at a certain height. When the operation is completed, the spool of the reversing slide valve is opened, the oil inlet chamber is no longer pressure maintained, and the oil cylinder is slowly lowered under the condition of the external load itself. , Rodless cavity oil return. until reset. For this kind of pressure maintaini...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
CPCF15B13/027
Inventor 张泽迅穆可福隋占颖杨爱红穆可辉
Owner 德州博福智能液压装备制造有限公司
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