CN210290768U

CN210290768U - Normally closed electromagnetic valve for gas terminal

Info

Publication number: CN210290768U
Application number: CN201920744185.5U
Authority: CN
Inventors: 查志新
Original assignee: Shenyang Tianhang Electrical Equipment Engineering Co ltd
Current assignee: Shenyang Tianhang Electrical Equipment Engineering Co ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-04-10
Anticipated expiration: 2029-05-23

Abstract

The utility model discloses a gas terminal normally closed solenoid valve, which comprises a valve body, the valve body inner chamber is equipped with respectively and gets into chamber and discharge chamber, the output bottom rigid coupling of valve body has the flashboard, the bottom of flashboard is connected with down the flashboard through compression spring. This gas terminal normally closed solenoid valve, promote flashboard shutoff intercommunication mouth after the output of electromagnet impels, drive compression spring and lower flashboard and continue to descend and make compression spring become compression operating condition, the elasticity driving force through compression spring this moment lasts the flashboard of promotion down and closely laminates in intercommunication mouth department, strengthen sealed effect, simultaneously lower flashboard lock shutoff is inserted in the intercommunication mouth to the intercommunication mouth in the rubber shutoff of its bottom behind the intercommunication mouth top and is thoroughly sealed, its annular limit cardboard lock closes in the ring channel behind the lower flashboard lock, and seal the seam through the sealing washer, multiple sealed very big reinforcing the sealed effect of solenoid valve under normally closed state.

Description

Normally closed electromagnetic valve for gas terminal

Technical Field

The utility model relates to a solenoid valve technical field specifically is a gas terminal normally closed solenoid valve.

Background

The electromagnetic valve is industrial equipment controlled by electromagnetism, is an automatic basic element for controlling fluid, and belongs to an actuator; and is not limited to hydraulic or pneumatic. The electromagnetic valve is widely applied in daily life, and consists of an electromagnetic coil and a magnetic core and is a valve body comprising one or more holes. When the coil is energized or de-energized, the operation of the core will cause the fluid to pass through the valve body or be cut off for the purpose of changing the direction of the fluid.

The working principle of the electromagnetic valve is as follows: the electromagnetic valve is internally provided with a closed cavity, through holes are formed in different positions, each hole is communicated with different oil pipes, a valve is arranged in the middle of the cavity, two electromagnets are arranged on two sides of the cavity, the magnet coil electrified valve body on which side can be attracted to which side, different oil discharge holes are blocked or leaked by controlling the movement of the valve body, the oil inlet hole is normally opened, hydraulic oil can enter different oil discharge pipes, then the piston of the oil cylinder is pushed by the pressure of the oil, the piston drives a piston rod, and the piston rod drives a mechanical device to move. Thus, by controlling the current to the electromagnet, the mechanical movement is controlled.

When the normally closed state used, the sealed closure nature of valve body decided the result of use of solenoid valve, but current solenoid valve mostly all uses single flashboard formula design to seal the intercommunication mouth, and the gap easily appears after using for a long time, causes sealed effect to reduce.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas terminal normally closed solenoid valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gas terminal normally closed solenoid valve, includes the valve body, the valve body inner chamber is equipped with respectively and gets into chamber and discharge chamber, the intercommunication department that gets into chamber and discharge chamber is the intercommunication mouth, the electromagnet output of valve body runs through into the valve body, the output bottom rigid coupling of valve body has the flashboard, the bottom of flashboard is connected with down the flashboard through compression spring, lower flashboard lock closes on the intercommunication mouth, the bottom rigid coupling of lower flashboard has the rubber shutoff, the rubber shutoff is pegged graft in the intercommunication mouth.

Preferably, the bottom circumference of lower flashboard is integrated into one piece has the annular limit cardboard, the top outside of intercommunication mouth is seted up the ring channel of the adaptation of annular limit cardboard.

Preferably, a sealing ring is arranged between the annular side clamping plate and the rubber plug on the bottom surface of the lower flashboard.

Compared with the prior art, the beneficial effects of the utility model are that: this gas terminal normally closed solenoid valve, promote flashboard shutoff intercommunication mouth after the output of electromagnet impels, drive compression spring and lower flashboard and continue to descend and make compression spring become compression operating condition, the flashboard closely laminates in intercommunication mouth department under the elastic pushing force through compression spring lasts to promote this moment, strengthen sealed effect, simultaneously lower flashboard lock closure is inserted in the intercommunication mouth to the intercommunication mouth in its bottom rubber shutoff behind the intercommunication mouth top and is thoroughly sealed, form the second and heavily seal this moment, its annular edge cardboard lock closure in the ring channel after lower flashboard lock closure, form the third and heavily seal this moment, and seal the seam through the sealing washer, form the fourth and heavily seal this moment, the sealed effect of solenoid valve under normally closed state has been strengthened to multiple seal.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic structural diagram of fig. 1A of the present invention.

In the figure: 1. the valve comprises a valve body, 2, an inlet cavity, 3, a flashboard, 4, a compression spring, 5, a communication port, 6, a rubber plug, 7, a lower flashboard, 8, a discharge cavity, 9, an annular edge clamping board, 10, a sealing ring, 11 and an annular groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a gas terminal normally closed solenoid valve, including

valve body

1, 1 inner chamber of valve body is equipped with respectively and gets into chamber 2 and discharge chamber 8, the intercommunication department that gets into chamber 2 and discharge chamber 8 is intercommunication mouth 5, the electromagnet output of valve body 1 runs through into valve body 1, the output bottom rigid coupling of valve body 1 has flashboard 3, flashboard 7 is connected with down through compression spring 4 in the bottom of flashboard 3, compression spring 4's elastic coefficient is K2N/cm, promote 3 shutoff intercommunication mouths 5 of flashboard after the output of electromagnet impels, it makes compression spring 4 become compression operating condition with lower flashboard 7 continuation decline to drive compression spring 4, flashboard 7 closely laminates in intercommunication mouth 5 department under the elastic pushing force promotion of compression spring 4 this moment, adopt this kind of design to promote the inseparable lock of flashboard 7 on intercommunication mouth 5 leakproofness when increasing the lock through compression spring 4 under the promotion of flashboard 3 lock.

The bottom rigid coupling of lower flashboard 7 has rubber shutoff 6, and rubber shutoff 6 pegs graft in intercommunication mouth 5, and lower flashboard 7 lock shutoff is in intercommunication mouth 5 top back rubber shutoff 6 of its bottom insert in the intercommunication mouth 5 thoroughly seal intercommunication mouth 5, and rubber shutoff 6 is transition fit with intercommunication mouth 5.

Lower flashboard 7's bottom circumference integrated into one piece has annular limit cardboard 9, and the ring channel 11 with annular limit cardboard 9 looks adaptation is seted up in the top outside of intercommunication mouth 5, and lower flashboard 7's bottom surface is located and is equipped with sealing washer 10 between annular limit cardboard 9 and the rubber shutoff 6, and its annular limit cardboard 9 lock is in ring channel 11 behind the lower flashboard 7 lock to through the design of sealing washer 10, further increase sealed effect.

The working principle is as follows: the output of electromagnet promotes 3 shutoff ports 5 of flashboard after impelling, drive compression spring 4 and lower flashboard 7 and continue to descend and make compression spring 4 become compression operating condition, flashboard 7 closely laminates in 5 departments of intercommunication port under the elastic pushing force promotion through compression spring 4 this moment, the rubber shutoff 6 of its bottom inserts intercommunication port 5 in the shutoff of lower flashboard 7 lock shutoff behind intercommunication port 5 top simultaneously and thoroughly seals intercommunication port 5, its annular limit cardboard 9 lock is in ring channel 11 behind lower flashboard 7 lock, and seal through sealing washer 10 to the crack.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gas terminal normally closed solenoid valve, includes valve body (1), valve body (1) inner chamber is equipped with respectively gets into chamber (2) and discharge chamber (8), the intercommunication department that gets into chamber (2) and discharge chamber (8) is intercommunication mouth (5), the electromagnet output of valve body (1) runs through into valve body (1), its characterized in that: the bottom of the output end of the valve body (1) is fixedly connected with a flashboard (3), the bottom of the flashboard (3) is connected with a lower flashboard (7) through a compression spring (4), the lower flashboard (7) is buckled on a communication port (5), the bottom of the lower flashboard (7) is fixedly connected with a rubber plug (6), and the rubber plug (6) is inserted into the communication port (5).

2. A gas terminal normally closed solenoid valve as claimed in claim 1 wherein: the bottom circumference of lower flashboard (7) integrated into one piece has annular limit cardboard (9), ring channel (11) with annular limit cardboard (9) looks adaptation are seted up in the top outside of intercommunication mouth (5).

3. A gas terminal normally closed solenoid valve as claimed in claim 1 wherein: and a sealing ring (10) is arranged between the annular side clamping plate (9) and the rubber plug (6) on the bottom surface of the lower flashboard (7).