CN-224214838-U - Electromagnetic pilot valve core

CN224214838UCN 224214838 UCN224214838 UCN 224214838UCN-224214838-U

Abstract

The utility model relates to the technical field of mechanical design, in particular to an electromagnetic pilot valve core, which comprises a valve core main body, wherein a buffer layer is fixed at the upper end of the valve core main body, two groups of buffer layers are arranged, the diameter length of the upper group of buffer layers is larger than that of the lower group of buffer layers, lantern rings are fixed at the upper ends of the two groups of buffer layers, and a limiting disc is fixed at the upper end of the buffer layers. According to the utility model, through the matched use of the buffer layers and the lantern rings, when the device is used, the two groups of buffer layers and the lantern rings are connected with the valve body, through the buffer layers and the lantern rings with different layers and sizes, high-pressure fluid is firstly flushed into the positions of the smaller group of buffer layers and the lantern rings, preliminary throttling and decompression are generated, and as the valve core continues to move upwards, the fluid enters the inner parts of the wider and deeper group of buffer layers and the lantern rings, the pressure is further gradually and gradually released, so that the high-speed fluid is prevented from directly flushing the surface of the device, and the service life of the device is prolonged.

Inventors

ZOU SHUO
ZHENG JIAYUE
LIANG YAXI
Kong Lingyubai
ZHANG ENTAO
XUE JINQI
CHEN HAO
WANG DONGRUI
YAO CHENGYU

Assignees

河南职业技术学院

Dates

Publication Date: 20260508
Application Date: 20250609

Claims (6)

1. The utility model provides an electromagnetic pilot valve case, includes case main part (1), its characterized in that: The valve core is characterized in that a buffer layer (2) is fixed at the upper end of the valve core main body (1), the buffer layer (2) is provided with two groups, the buffer layer (2) is higher than the buffer layer (2) in the lower group, the two groups are respectively fixed with a lantern ring (3) at the upper end of the buffer layer (2), a limiting disc (4) is fixed at the upper end of the buffer layer (2), a threaded sleeve (5) is fixed at the lower end of the valve core main body (1), a push rod (6) is inserted at the lower end of the threaded sleeve (5) in a sliding manner, a buffer cylinder (8) is fixedly connected to the bottom end of the push rod (6), and a base (9) is fixed at the lower end of the buffer cylinder (8).
2. The electromagnetic pilot valve spool according to claim 1, wherein the collar (3) is made of rubber.
3. The spool of an electromagnetic pilot valve according to claim 1, characterized in that the inner surface of the threaded sleeve (5) is threaded with the upper end surface of the carrier rod (6).
4. The electromagnetic pilot valve core according to claim 1, wherein a plurality of groups of diversion trenches (7) are formed at the lower end of the ejector rod (6), and micropores are formed in the diversion trenches (7).
5. The spool of an electromagnetic pilot valve as set forth in claim 1, wherein a plurality of sets of circular grooves are formed in both the upper and lower ends of the buffer cylinder (8).
6. The electromagnetic pilot valve spool according to claim 1, wherein a transition ring (10) is fixed at the lower end of the buffer tube (8), and the lower end of the transition ring (10) is fixedly connected with the upper end of the base (9).

Description

Electromagnetic pilot valve core Technical Field The utility model relates to the technical field of mechanical design, in particular to an electromagnetic pilot valve core. Background The technical field of mechanical design is to apply various scientific principles, engineering knowledge and innovative thinking to plan functions, structures, shapes, sizes, materials, manufacturing processes and the like of mechanical products, design mechanical products or parts meeting specific requirements, and accurately design parameters such as shapes, sizes, tolerances and the like of valve cores according to the use requirements of pilot valves so as to ensure perfect matching of the valve cores with parts such as valve seats, valve bodies and the like. The electromagnetic pilot valve core is usually made of specific metal or other materials with certain strength and wear resistance, has an appearance structure with accurate design, is arranged in a valve body of the electromagnetic pilot valve, can do linear reciprocating motion in the valve body under the comprehensive action of electromagnetic force, spring force, fluid pressure and other forces, and returns to an initial position under the action of a reset mechanism such as spring force when an electromagnetic coil is powered off, so that the fluid control state is restored to the initial setting, and the performance of the electromagnetic pilot valve core is good or bad, such as the action sensitivity, the sealing reliability and the like, and directly influences the working stability and the control precision of the electromagnetic pilot valve and even the whole fluid control system. However, the applicant believes that the disadvantages are that 1, when the existing equipment is used for a long time, the equipment can be flushed by water flow pressure for a long time, damage or rupture of the equipment can occur, and the service life of the equipment is reduced to a certain extent, and 2, when the equipment is used, the pollutant can not be discharged conveniently, so that the pollutant is blocked inside the equipment for a long time, and the service performance of the equipment is reduced. For this purpose we propose an electromagnetic pilot valve spool to solve the above problems. Disclosure of utility model The utility model aims to provide an electromagnetic pilot valve core so as to solve the problems in the background art. In order to achieve the above purpose, the utility model provides a valve core of an electromagnetic pilot valve, which comprises a valve core main body, The valve core is characterized in that the upper end of the valve core main body is fixedly provided with a buffer layer, the buffer layer is provided with two groups, the upper groups of the buffer layer are larger than the lower groups of the buffer layer in diameter length, the upper ends of the buffer layer are fixedly provided with lantern rings, the upper end of the buffer layer is fixedly provided with a limiting disc, the lower end of the valve core main body is fixedly provided with a threaded sleeve, the lower end of the threaded sleeve is slidably inserted with a push rod, the bottom end of the push rod is fixedly connected with a buffer cylinder, and the lower end of the buffer cylinder is fixedly provided with a base. Preferably, the material of lantern ring is rubber, can pack the valve body clearance through above-mentioned material, has reduced the leak rate of equipment to a certain extent. Preferably, the internal surface of screw sleeve and the upper end surface threaded connection of ejector pin, rotary equipment can adjust sealed pretightning force, can improve the stability of equipment through the design of screw self-locking. Preferably, a plurality of groups of diversion trenches are formed in the lower end of the ejector rod, micropores are formed in the diversion trenches, and the pressure of the equipment is released to a certain extent through the micropores. Preferably, the upper end and the lower end of the buffer cylinder are provided with a plurality of groups of circular grooves, so that the cutting speed of fluid is delayed. Preferably, the lower extreme of the buffer cylinder is fixed with the transition ring, and the lower extreme of transition ring and the upper end fixed connection of base, through the cooperation use of transition ring, can reduce the impact force of certain degree to external force. The utility model provides an electromagnetic pilot valve core, which has the following beneficial effects: Through the cooperation of buffer layer and lantern ring, when equipment uses, two sets of buffer layer and lantern ring are connected with the valve body, buffer layer and lantern ring through different levels and sizes, high-pressure fluid first washes into the position of less a set of buffer layer and lantern ring to produce preliminary throttle decompression, with the case continues to move up, fluid gets into the inside of the buffer