CN217463401U

CN217463401U - Pulse electromagnetic valve

Info

Publication number: CN217463401U
Application number: CN202221425785.3U
Authority: CN
Inventors: 李学谦; 廖国柔
Original assignee: Foshan Shunde Real Intelligent Technology Co ltd
Current assignee: Foshan Shunde Real Intelligent Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-09-20
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a pulse electromagnetic valve, including valve body and valve head, the valve body includes disk seat, diaphragm subassembly and clamp plate, and the diaphragm subassembly includes area needle spring and diaphragm main part, is equipped with the direction through-hole in the diaphragm main part, is equipped with the column pressure release hole on the clamp plate, and the column pressure release hole passes area needle spring and direction through-hole in proper order and overlaps and be equipped with the end cap, but the direction through-hole is in movable sealed cooperation with the outer wall in column pressure release hole; the valve head includes magnetic conduction support and electromagnet assembly, and electromagnet assembly includes coil base and coil, is equipped with magnetic conduction iron cap and magnetic conduction iron ring on the coil base, from the top down is equipped with permanent magnet, magnetic ring, spring, iron core and rubber cap in proper order in the coil base, and iron core movably sets up in the coil base to can drive the rubber cap and change between closed condition and the intercommunication state. The utility model discloses a pulse solenoid valve has compact structure, and easily equipment can satisfy the user demand in small space, advantage that suitability and commonality are good.

Description

Pulse electromagnetic valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to pulse solenoid valve.

Background

Pulse solenoid valve is also known as diaphragm valve, it is through the wire to coil input pulse signal in the solenoid valve body, the pulse valve receives pulse jetting control instrument output signal's control, the pressure variation of two air chambers around the dependence valve, make the rubber diaphragm warp to warp and realize opening and closing of pulse valve, but the valve core part of current pulse solenoid valve is not good enough with the wholeness of housing, need carry out effective fixed or spacing with housing and valve core part branch frame with the help of structures such as bolt, whole assembly efficiency is not high, and is large, the consumption is high, and is with high costs, can't satisfy the user demand in small space.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art existence, provide a compact structure, easily equipment can satisfy the user demand in small space, the good pulse solenoid valve of suitability and commonality.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a pulse electromagnetic valve comprises a valve body and a valve head, wherein the valve body comprises a valve seat, a diaphragm assembly arranged in the valve seat and a pressing plate arranged above the valve seat, the diaphragm assembly comprises a spring with a needle and a diaphragm main body, a guide through hole is formed in the diaphragm main body, a columnar pressure relief hole is formed in the pressing plate, the columnar pressure relief hole sequentially penetrates through the spring with the needle and the guide through hole and is sleeved with a plug, and the guide through hole is movably matched with the outer wall of the columnar pressure relief hole in a sealing manner;

the valve head including set up in the magnetic conduction support of clamp plate top with set up in electromagnet assembly in the magnetic conduction support, electromagnet assembly includes the coil holder and around establishing the coil in the coil holder outside, the upper end of coil holder is equipped with the magnetic conduction iron cap, the tip of magnetic conduction iron cap with the top contact of magnetic conduction support, the lower extreme of coil holder is equipped with the magnetic conduction iron ring, the tip of magnetic conduction iron ring with the bottom contact of magnetic conduction support, from the top down is equipped with permanent magnet, magnetic ring, spring, cover in proper order in the coil holder and locates the iron core and the rubber cap in the spring outside, the iron core movably set up in the coil holder, and can drive the rubber cap with the closing state of column pressure release hole laminating and with change between the connected state that column pressure release hole breaks away from.

As a further improvement of the technical scheme:

the water inlet, the water inlet cavity, the water outlet cavity and the water outlet are sequentially arranged on the valve seat, the diaphragm main body is arranged between the water inlet cavity and the water outlet cavity, the upper port of the columnar pressure relief hole is communicated with the water inlet cavity, and the lower port of the columnar pressure relief hole is communicated with the water outlet cavity.

The pressure plate with be formed with the pressure release chamber between the coil holder, be equipped with in the diaphragm main part and be used for the intercommunication the water inlet with the first through-hole of intake antrum, be equipped with on the pressure plate and be used for the intercommunication the intake antrum with the second through-hole in pressure release chamber, the last port in column pressure release hole extends to in the pressure release intracavity, the lower port in column pressure release hole extends to go out the water cavity.

The coil base is internally provided with a containing cavity for containing the permanent magnet, the magnetic ring, the spring, the iron core and the rubber cap, the lower end of the coil base is formed with a tubular structure for extending the containing cavity, a first sealing ring is arranged between the outer wall of the tubular structure and the pressing plate, a second sealing ring is arranged between the magnetic ring and the inner wall of the containing cavity, and the first sealing ring and the second sealing ring are sealed to form the pressure relief cavity.

The iron core is provided with a counter bore for containing the spring, a water through hole is formed in the counter bore, a water through groove is formed in the inner wall of the tubular structure, and the water through groove is communicated with the water through hole.

The end part of the spring with the needle is provided with a stitch, and the stitch penetrates through the first through hole.

The magnetic conduction iron cap, the permanent magnet, the magnetic ring, the spring, the iron core, the rubber cap and the magnetic conduction iron ring are coaxially arranged and coincide with the central axis of the coil base.

The coil holder is internally provided with a limiting boss which is used for being abutted against the permanent magnet or the magnetic ring to realize axial limiting.

And the coil base is provided with a first connecting position for installing the magnetic conducting iron cap and a second connecting position for installing the magnetic conducting iron ring.

And the coil seat is provided with an encapsulating layer for coating the coil.

The iron core is cylindrical or hexagonal prism shaped.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a pulse solenoid valve is through between clamp plate and coil holder, all effectively utilizing the sealing washer to form the through-flow passageway between coil holder and the iron core to avoided the complicated water conservancy diversion passageway of design in valve body and valve head, not only the structure is compacter, and valve body and valve head wholeness are strong, easily equipment, small in size moreover, the low power dissipation, and is with low costs, can satisfy the user demand in small space, and suitability and commonality are good.

Drawings

Fig. 1 is a schematic diagram of a half-section structure of a pulse solenoid valve.

Fig. 2 is a schematic half-sectional structure view of the valve body.

Fig. 3 is a schematic half-sectional structure of the valve head and the pressure plate.

Fig. 4 is an exploded view of a pulsed solenoid valve.

Fig. 5 is a schematic view of the structure of the valve seat.

Fig. 6 is a schematic structural view of a diaphragm body.

Fig. 7 is a schematic structural view of the pressing plate.

Fig. 8 is a schematic structural view of the coil holder.

FIG. 9 is a schematic view of a half-section structure of a valve head according to a second embodiment

Illustration of the drawings:

100. a valve body; 200. a valve head; 300. a first seal ring; 400. a second seal ring; 1. a valve seat; 101. a water inlet; 102. a water inlet cavity; 103. a water outlet cavity; 104. a water outlet; 2. a diaphragm assembly; 201. a spring with a needle; 2011. a stitch; 202. a diaphragm body; 2021. a guide through hole; 2022. a first through hole; 3. pressing a plate; 301. a columnar pressure relief hole; 302. a second through hole; 4. a magnetic conductive bracket; 5. an electromagnet assembly; 501. a coil holder; 5011. a tubular structure; 5012. passing through a water tank; 5013. a limiting boss; 5014. a first connection site; 5015. a second connection bit; 502. a magnetic conductive iron cap; 503. a magnetic conductive coil; 504. a permanent magnet; 505. a magnetic ring; 506. a spring; 507. an iron core; 5071. water passing holes; 508. a rubber cap; 6. a plug; 7. a pressure relief cavity; 8. a housing chamber; 9. and (6) encapsulating the layer.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

Example one

As shown in fig. 1 to 8, the pulse electromagnetic valve of this embodiment includes a valve body 100 and a valve head 200, the valve body 100 includes a valve seat 1, a membrane assembly 2 disposed in the valve seat 1, and a pressing plate 3 disposed above the valve seat 1, the membrane assembly 2 includes a spring 201 with a needle and a membrane main body 202, a guide through hole 2021 is disposed on the membrane main body 202, a columnar pressure relief hole 301 is disposed on the pressing plate 3, the columnar pressure relief hole 301 sequentially penetrates through the spring 201 with a needle and the guide through hole 2021 and is sleeved with a plug 6, and the guide through hole 2021 is movably and hermetically matched with an outer wall of the columnar pressure relief hole 301;

the valve head 200 includes a magnetic conductive support 4 disposed above the pressure plate 3 and an electromagnet assembly 5 disposed in the magnetic conductive support 4, the electromagnet assembly 5 includes a coil base 501 and a coil (not shown in the figure) wound outside the coil base 501, a magnetic conductive iron cap 502 is disposed at an upper end of the coil base 501, an end of the magnetic conductive iron cap 502 contacts with a top of the magnetic conductive support 4, a magnetic conductive iron ring 503 is disposed at a lower end of the coil base 501, an end of the magnetic conductive iron ring 503 contacts with a bottom of the magnetic conductive support 4, a permanent magnet 504, a magnetic ring 505, a spring 506, an iron core 507 and a rubber cap 508 are sequentially disposed in the coil base 501 from top to bottom, the iron core 507 is movably disposed in the coil base 501, and the rubber cap 508 can be driven to switch between a closed state attached to the columnar pressure relief hole 301 and a communication state detached from the columnar pressure relief hole 301.

Preferably, the valve seat 1 is sequentially provided with a water inlet 101, a water inlet cavity 102, a water outlet cavity 103 and a water outlet 104, the diaphragm main body 202 is arranged between the water inlet cavity 102 and the water outlet cavity 103, an upper port of the columnar pressure relief hole 301 is communicated with the water inlet cavity 102, and a lower port of the columnar pressure relief hole 301 is communicated with the water outlet cavity 103.

Preferably, a pressure relief cavity 7 is formed between the pressure plate 3 and the coil holder 501, a first through hole 2022 for communicating the water inlet 101 and the water inlet cavity 102 is formed in the diaphragm main body 202, a second through hole 302 for communicating the water inlet cavity 102 and the pressure relief cavity 7 is formed in the pressure plate 3, an upper port of the columnar pressure relief hole 301 extends into the pressure relief cavity 7, and a lower port of the columnar pressure relief hole 301 extends into the water outlet cavity 103. In this embodiment, the water inlet 101 is communicated with the water inlet chamber 102 through a first through hole 2022 on the membrane main body 202, the water inlet chamber 102 is communicated with the pressure release chamber 7 through a second through hole 302 on the pressure plate 3, and the pressure release chamber 7 is communicated with the water outlet chamber 103 through a cylindrical pressure release hole 301.

Preferably, a cavity 8 for accommodating the permanent magnet 504, the magnetic ring 505, the spring 506, the iron core 507 and the rubber cap 508 is arranged in the coil base 501, a tubular structure 5011 for extending the cavity 8 is formed at the lower end of the coil base 501, a first sealing ring 300 is arranged between the outer wall of the tubular structure 5011 and the pressure plate 3, a second sealing ring 400 is arranged between the magnetic ring 505 and the inner wall of the cavity 8, and the first sealing ring 300 and the second sealing ring 400 are sealed to form a pressure relief cavity 7. In this embodiment, pressure release chamber 7 is the partly that holds in the chamber 8, also spring 506, iron core 507 and rubber cap 508 are located pressure release chamber 7, and iron core 507 is mobile in coil housing 501 to can drive rubber cap 508 activity from top to bottom, rubber cap 508 and column pressure release hole 301 laminating do the utility model discloses be in off-state, rubber cap 508 breaks away from with column pressure release hole 301 does the utility model discloses be in the connected state.

As shown in fig. 3 and 8, preferably, the iron core 507 is provided with a counter bore for accommodating the spring 506, the counter bore is provided with a water through hole 5071, the inner wall of the tubular structure 5011 is provided with a water through groove 5012, and the water through groove 5012 is communicated with the water through hole 5071. In this embodiment, during the movement of the core 507, water or gas in the counter bore can be discharged to the water outlet 104 through the water through holes 5071 and the water through slot 5012, preventing the core 507 from being stuck.

Preferably, a pin 2011 is arranged at the end of the spring with needle 201, and the pin 2011 penetrates through the first through hole 2022. In this embodiment, the spring with needle 201 can let the membrane body 202 close the water seal under low pressure.

Preferably, the magnetic conductive iron cap 502, the permanent magnet 504, the magnetic ring 505, the spring 506, the iron core 507, the rubber cap 508 and the magnetic conductive iron ring 503 are coaxially arranged and coincide with the central axis of the coil holder 501.

Preferably, a limit boss 5013 for abutting against the permanent magnet 504 to limit the axial direction is arranged in the coil holder 501.

Preferably, the coil holder 501 is provided with a first connection position 5014 for mounting the magnetic conductive iron cap 502 and a second connection position 5015 for mounting the magnetic conductive iron ring 503.

Preferably, the coil holder 501 is provided with an encapsulating layer 9 for covering the coil.

Preferably, the iron core 507 is cylindrical or hexagonal prism shaped.

The working principle of the pulse electromagnetic valve is as follows: the permanent magnet 504 is arranged at the inner side of the magnetic conduction bracket 4, the magnetic conduction iron cap 502 and the magnetic conduction iron ring 503 also form fixed magnetism under the action of the magnetic field enhanced by the permanent magnet 504 and the magnetic conduction bracket 4, when a positive pulse signal passes through a coil (not shown in the figure), the iron core 507 is magnetized by the magnetic field generated by the coil to obtain magnetism (the magnetization of the permanent magnet 504 on the iron core 507 is far smaller than the magnetization of the coil on the iron core 507), at the moment, the magnetism of the iron core 507 and the magnetism of the permanent magnet 504 are attracted in different poles, the iron core 507 drives the rubber cap 508 to be separated from the columnar pressure relief hole 301, the spring 506 is compressed, the water inlet cavity 102 (namely the pressure relief cavity 7 communicated with the water inlet cavity) is communicated with the water outlet cavity 103, the membrane assembly 2 moves upwards under the action of water flow of the water inlet 101, so that the water inlet 101 and the water outlet 104 are kept unblocked, water flows out from the lower part of the membrane assembly 2, and at the moment, the pulse electromagnetic valve is in an open state;

when a reverse pulse signal passes through the coil, the iron core 507 is magnetized by the magnetic field generated by the coil to obtain magnetism (the magnetization of the permanent magnet 504 on the iron core 507 is far smaller than the magnetization of the coil on the iron core 507), at the moment, the magnetism of the iron core 507 and the magnetism of the permanent magnet 504 repel each other, the iron core 507 drives the rubber cap 508 to act, the rubber cap 508 is attached to the columnar pressure relief hole 301, the water inlet cavity 102 (namely the pressure relief cavity 7 communicated with the water inlet cavity) is communicated with the water outlet cavity 103, the water pressure on two sides of the membrane assembly 2 is consistent, and as the stressed area on one side, close to the water inlet cavity 102, of the membrane main body 202 is larger, the acting force of water on one side of the water inlet cavity 102 is larger, the membrane assembly 2 moves downwards, the water inlet 101 and the water outlet 104 are blocked, and the pulse electromagnetic valve is in a closed state at the moment. This pulse solenoid valve is through between clamp plate 3 and coil holder 501, all effectively utilize the sealing washer to form through-flow passageway between coil holder 501 and the iron core 507, thereby avoided designing complicated water conservancy diversion passageway in valve body 100 and valve head 200, not only the structure is compacter, valve body 100 is strong with valve head 200 wholeness, easily equipment, small in size moreover, the low power dissipation, it is with low costs, can satisfy the user demand in small space, suitability and commonality are good.

Example two

As shown in fig. 9, the structure of the pulse solenoid valve provided in this embodiment is substantially the same as that of the first embodiment, except that: the permanent magnet 504 passes through the limit boss 5013, and the limit boss 5013 in the coil holder 501 is used for abutting against the magnetic ring 505 to realize axial limit.

The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention shall be considered as the protection scope of the present invention.

Claims

1. The pulse electromagnetic valve comprises a valve body (100) and a valve head (200), and is characterized in that the valve body (100) comprises a valve seat (1), a diaphragm assembly (2) arranged in the valve seat (1) and a pressing plate (3) arranged above the valve seat (1), the diaphragm assembly (2) comprises a spring with a needle (201) and a diaphragm main body (202), a guide through hole (2021) is formed in the diaphragm main body (202), a columnar pressure relief hole (301) is formed in the pressing plate (3), the columnar pressure relief hole (301) sequentially penetrates through the spring with the needle (201) and the guide through hole (2021) and is sleeved with a plug (6), and the guide through hole (2021) is movably matched with the outer wall of the columnar pressure relief hole (301) in a sealing manner;

the valve head (200) comprises a magnetic conduction support (4) arranged above the pressing plate (3) and an electromagnet assembly (5) arranged in the magnetic conduction support (4), the electromagnet assembly (5) comprises a coil base (501) and a coil wound outside the coil base (501), a magnetic conduction iron cap (502) is arranged at the upper end of the coil base (501), the end part of the magnetic conduction iron cap (502) is in contact with the top of the magnetic conduction support (4), a magnetic conduction iron ring (503) is arranged at the lower end of the coil base (501), the end part of the magnetic conduction iron ring (503) is in contact with the bottom of the magnetic conduction support (4), a permanent magnet (504), a magnetic ring (505), a spring (506), an iron core (507) sleeved outside the spring (506) and a rubber cap (508) are sequentially arranged in the coil base (501) from top to bottom, and the rubber cap (508) can be driven to switch between a closed state attached to the columnar pressure relief hole (301) and a communicated state separated from the columnar pressure relief hole (301).

2. The pulse electromagnetic valve according to claim 1, wherein a water inlet (101), a water inlet cavity (102), a water outlet cavity (103) and a water outlet (104) are sequentially arranged on the valve seat (1), the diaphragm main body (202) is arranged between the water inlet cavity (102) and the water outlet cavity (103), an upper port of the columnar pressure relief hole (301) is communicated with the water inlet cavity (102), and a lower port of the columnar pressure relief hole (301) is communicated with the water outlet cavity (103).

3. The pulse electromagnetic valve according to claim 2, wherein a pressure relief cavity (7) is formed between the pressure plate (3) and the coil holder (501), a first through hole (2022) for communicating the water inlet (101) with the water inlet cavity (102) is formed in the diaphragm main body (202), a second through hole (302) for communicating the water inlet cavity (102) with the pressure relief cavity (7) is formed in the pressure plate (3), an upper port of the columnar pressure relief hole (301) extends into the pressure relief cavity (7), and a lower port of the columnar pressure relief hole (301) extends into the water outlet cavity (103).

4. The pulse electromagnetic valve according to claim 3, characterized in that a cavity (8) for accommodating the permanent magnet (504), the magnetic ring (505), the spring (506), the iron core (507) and the rubber cap (508) is arranged in the coil base (501), a tubular structure (5011) for extending the cavity (8) is formed at the lower end of the coil base (501), a first sealing ring (300) is arranged between the outer wall of the tubular structure (5011) and the pressure plate (3), a second sealing ring (400) is arranged between the magnetic ring (505) and the inner wall of the cavity (8), and the first sealing ring (300) and the second sealing ring (400) are sealed to form the pressure relief cavity (7).

5. The pulse electromagnetic valve according to claim 4, characterized in that the iron core (507) is provided with a counter bore for accommodating the spring (506), the counter bore is provided with a water through hole (5071), the inner wall of the tubular structure (5011) is provided with a water through groove (5012), and the water through groove (5012) is communicated with the water through hole (5071).

6. A pulse solenoid valve according to claim 3, characterised in that the end of said spring with needle (201) is provided with a pin (2011), said pin (2011) passing through said first through hole (2022).

7. A pulsed solenoid valve according to claim 1, wherein the magnetically conductive iron cap (502), permanent magnet (504), magnetic ring (505), spring (506), iron core (507), rubber cap (508) and magnetically conductive iron ring (503) are arranged coaxially and coincident with the central axis of the coil holder (501).

8. A pulse solenoid valve according to claim 1, characterized in that a limit boss (5013) is provided in the coil holder (501) for abutting against the permanent magnet (504) or the magnetic ring (505) for axial limit.

9. A pulse solenoid valve according to claim 1, characterised in that the coil holder (501) is provided with a first connection location (5014) for mounting the magnetically conductive iron cap (502) and a second connection location (5015) for mounting the magnetically conductive iron ring (503).

10. A pulse solenoid valve according to claim 1, characterised in that the coil holder (501) is provided with an encapsulating layer (9) for encapsulating the coil.