a solenoid valve
A solenoid valve and valve body technology, applied in the field of solenoid valves, can solve the problems that the ejector pin cannot automatically return, etc., and achieve the effect of simple structure, easy manufacture, and good scalability
Active Publication Date: 2019-11-08
HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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- Application Information
AI Technical Summary
Problems solved by technology
[0004] The above-mentioned manually operable electric valve realizes the opening or closing of the valve in the case of power failure, by applying an axial force to the ejector rod in the form of pressing and pulling through the distance between the manual switch and the fastening nut, so that The ejector rod is realized by stretching and contracting in the fastening nut. After the operator presses or pulls up the manual switch, the ejector rod cannot automatically return to the state before operation.
Method used
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Embodiment Construction
[0030] Embodiment 1 of the solenoid valve of the present invention is as Figure 1~5 As shown, including the valve body 14, the valve body 14 is a left-right symmetrical structure in the figure, and the components in the valve body 14 are also installed symmetrically. Taking the left half of the valve body 14 as an example, the valve body 14 is provided with a There are oil inlet, oil return port, working oil port A port 11 and working oil port B port 12. The oil return port communicates with the oil return cavity 15 of the valve body through the process hole, and the oil return cavity 15 communicates with the valve body 14 through the process hole. The main passage of the valve body is connected, the oil inlet is connected with the oil inlet chamber 16 of the valve body, the oil inlet chamber 16 is connected with the main passage of the valve body, and the valve core 13 is axially reciprocating in the main passage of the valve body to control the oil inlet, oil return The ope...
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The invention relates to an electromagnetic valve. The electromagnetic valve comprises a valve body, a gag bit arranged in the valve body and in clearance fit with the valve body, and an ejector rod whose one end is in ejection fit with the gag bit and the other end extends out of the valve body. The electromagnetic valve is characterized in that the valve body is provided with an elastic piece atthe end, extending out of the valve body, of the ejector rod; and the elastic piece is connected with the end part of the ejector rod, and drives the ejector rod to return after the ejector rod is pressed to push a valve element to move in a pressure relief position. After the ejector rod axially moves in the valve body through manual control, the elastic piece is deformed to apply return force to the ejector rod to return to a state before operation; and after operators remove the pressure applied to the ejector rod, the ejector rod is returned to the state before operation under the effectof the return force applied by the elastic piece.
Description
technical field [0001] The invention relates to a solenoid valve, in particular to a solenoid valve with a manual control structure. Background technique [0002] Solenoid valve is an automatic basic component used to control fluid. It is mainly used in hydraulic and pneumatic systems that require flow control to realize automatic control of system on-off. The current system is generally equipped with an electromagnetic control module, and the automatic control of the solenoid valve is realized through the electromagnetic control module. However, when the solenoid valve suddenly loses power or fails to automatically control it, it is difficult to effectively control the system, which is very easy to cause Safety accidents have great safety hazards, so it is necessary to design a solenoid valve equipped with a manual control structure, which is used to manually open and close the solenoid valve when the solenoid valve is abnormally powered off. [0003] The Chinese utility m...
Claims
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IPC IPC(8): F16K11/065F16K31/06
CPCF16K11/065F16K31/061
Inventor 李继军丁继杰胡兆华杨凯张耀新白祥志孔宁宁张磊王炜孟丽娜
Owner HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH