Thread plug-in type electronic control hydraulic lock

Abstract

The invention relates to a thread plug-in type electronic control hydraulic lock which comprises a flux sleeve, a fixed iron, a moving iron, a coil, a main valve core, a pilot valve core, a valve pocket, a piston, a valve seat and a check valve core, wherein the flux sleeve comprises a body and an extension tube which is formed by extending the body backward; the valve seat comprises a first oil port and a second oil port, the main valve core is limited on the rear end of the valve seat, the front end of the valve seat is provided with a first through oil hole and a second through oil hole which are provided with axial openings, the pilot valve core axially extends forwards from the moving iron, enters into the hollow cavity of the main valve core and the front end part of the pilot valve core is coordinated with the opening and closure of the first through oil hole of the main valve core; the front end of the valve pocket is provides a third air port with an axial opening and a fourth air port which is radially arranged in the middle part; and the front end of the check valve core is provided with a driving face, the side wall of the check valve core is provided with a third through oil hole which can be connected or disconnected with the fourth air port. Compared with the prior art, the hydraulic lock provided by the invention has the advantages that the control release load of the hydraulic lock is realized through the electronic control structure, the integral structure is compact, multifunction integration is realized, the volume is small, the assembly and disassembly are convenient and rapid, and the property is reliable and stable in the long term usage.

Description

technical field [0001] The invention relates to a hydraulic lock, in particular to a threaded plug-in electronically controlled hydraulic lock. It can be used in hydraulic systems that require locking of circuits such as lifts and elevators. Background technique [0002] In the hydraulic system of the traditional hydraulic lock, the hydraulic control pressure changes due to the change of the load; and due to the acceleration, the hydraulic control pressure will change greatly. The change of the hydraulic control pressure will cause the system cylinder to vibrate violently. For this reason, it is necessary to use an electronically controlled hydraulic lock, that is, the electromagnet actively opens the valve core to keep the valve core normally open, so as to avoid the drastic vibration of the system cylinder caused by the huge change of the hydraulic control pressure. So as to achieve a relatively stable operation of the system. However, at present, this type of structure ...

AI Technical Summary

Problems solved by technology

However, at present, this type of structure has a large volume, complicated installation, difficult system integration, complicated processing, and low flexibility in controlling the reaction, and the overall cost is high.

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