Hydraulic one-way valve
A technology of hydraulically controlled check valve and check valve, applied in the direction of control valve, valve device, functional valve type, etc., can solve the problems of inconvenient use, unfavorable maintenance, troublesome process, etc.
Active Publication Date: 2013-04-10
林友根
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Problems solved by technology
[0003] Since the hydraulic control check valve is generally used in the hydraulic system, and the hydraulic parts and pipelines in the hydraulic system often need hollow hinged bolts to connect, when the hydraulic control check valve needs to be used, it needs to be installed in the pipeline. An additional hydraulic control check valve is installed on the road, that is, the hydraulic control check valve and the hinged bolts are separated, and they need to be installed and positioned separately during installation and use. The process is relatively troublesome. At this time, the failure rate is also high, which is not conducive to maintenance. Inconvenience
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] The hydraulic control check valve of the present invention includes a valve body 1, a main valve core 2 and a push rod 3, and the valve body 1 is provided with a liquid inlet 4, a liquid outlet 5, a control liquid inlet 6 and a liquid discharge channel , the main valve core 2 and the ejector rod 3 are arranged in the valve body 1 .
[0020] The outer diameter of the head at the upper end of the valve body 1 is greater than the outer diameter of the part below the head, the part below the head of the valve body 1 is provided with external threads, and the valve wall of the part below the head of the valve body is provided with Several transverse passages, the valve body penetrates up and down; the upper part of the push rod 3 is provided with a control piston 7, and a spring II8 is also provided on the control piston 7, one end of the spr...
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The invention discloses a hydraulic one-way valve which comprises a valve body (1), a main valve plug (2) and a top rod (3), wherein the valve body (1) is provided with a liquid inlet (4), a liquid outlet (5), a control liquid inlet (6) and a liquid discharge channel; the main valve plug (2) and the top rod (3) are arranged in the valve body (1); the outer diameter of the upper end head part of the valve body (1) is greater than the outer diameter of the part below the head part; the part below the head part of the valve body (1) is provided with outer screw threads; the valve wall of the part below the head part of the valve body is provided with a plurality of transverse channels; the valve body is through up and down; the upper part of the top rod (3) is provided with a control piston (7); the control piston is also provided with a spring II (8); and one end of the spring II is fixed on the control piston (7), and the other end of the spring II is fixed on the valve body (1). By adopting the hydraulic one-way valve provided by the invention, the hydraulic components and pipelines can be connected, thus an articulated bolt and the hydraulic one-way valve can be integrated.
Description
technical field [0001] The invention relates to the field of valves, in particular to a hydraulic control check valve. Background technique [0002] Hydraulic control check valve The hydraulic control check valve is a valve that can open the check valve by controlling the pressure of the liquid. The hydraulically controlled one-way valve in the prior art generally includes a valve body, a valve core and a push rod. The valve body is provided with a liquid inlet, a liquid outlet, a control liquid inlet and a discharge channel. The valve core and The ejector rod is set in the valve body; by adjusting the liquid pressure at the inlet of the control liquid, that is, the driving force on the ejector rod, when the check valve needs to be opened, the liquid pressure at the inlet of the control liquid is increased to push the ejector rod, and the ejector rod pushes and Open the spool, thereby opening the check valve. [0003] Since the hydraulic control check valve is generally us...
Claims
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IPC IPC(8): F15B13/02F16K15/18
Inventor 林友根
Owner 林友根