CN210290927U

CN210290927U - Novel electromagnetic valve

Info

Publication number: CN210290927U
Application number: CN201921327958.6U
Authority: CN
Inventors: 洪诗苗
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-10
Anticipated expiration: 2029-08-16

Abstract

A novel electromagnetic valve mainly comprises a coil pilot control device, a valve cover and a valve body; the device also comprises an upper sealing membrane assembly, a lower sealing membrane assembly, an upper guide rod fixedly arranged on the upper end surface of the upper sealing membrane assembly, and a lower guide rod fixedly arranged on the lower end surface of the lower sealing membrane assembly; the upper sealing diaphragm assembly is correspondingly arranged on the contact surface of the valve cover and the main valve body, the lower sealing diaphragm assembly is correspondingly arranged on the sealing surface of the medium inlet and outlet in the valve cavity of the main valve body, namely the upper sealing diaphragm assembly is correspondingly arranged in the upper valve cavity opening of the valve body, and the lower sealing diaphragm assembly is correspondingly arranged in the lower valve cavity opening of the valve body; after the upper guide rod is added, the upper sealing diaphragm component can be opened more smoothly and accurately, and the stress deviation can be reduced; the lower guide rod is added, so that the lower sealing diaphragm assembly is closed more quickly and stably, and the stress deviation is reduced; the usable sealing pressure of the product is greatly improved after the lower sealing rubber component is added; the utility model discloses the medium pressure that the solenoid valve can pass is high, and the flow is big, but the switch is more stable the characteristics of side dress.

Description

Novel electromagnetic valve

Technical Field

The utility model belongs to the technical field of valve automatic control, concretely relates to a novel solenoid valve that bearing pressure is higher.

Background

The electromagnetic valve is a basic element for electromagnetic automatic control of fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure; for use in industrial control systems to adjust the direction, flow, velocity or other parameters of a medium; aiming at the defects of poor sealing performance, small flow and unstable flow of a pilot-operated electromagnetic valve used in the existing market, the pilot-operated electromagnetic valve is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a medium flow is big to the not enough of above technique, provides a novel magnet valve that the flow is more stable.

The utility model discloses a realize through following technical scheme: a novel electromagnetic valve mainly comprises a coil pilot control device, a valve cover and a valve body; the method is characterized in that: the upper sealing membrane component is fixedly arranged on the upper end face of the upper sealing membrane component, and the lower guiding rod is fixedly arranged on the lower end face of the lower sealing membrane component; the upper sealing diaphragm assembly is correspondingly arranged in an upper valve cavity opening of the valve body, the lower sealing diaphragm assembly is correspondingly arranged in a lower valve cavity opening of the valve body, namely the upper sealing diaphragm assembly is correspondingly arranged between the valve cover and the valve body and is sealed with an inner cavity of the valve cover to form a space, the inner cavity of the valve cover is combined with the upper sealing diaphragm assembly, and a driving force is provided for sealing the sealing surface of the lower sealing rubber assembly and the sealing surface of the valve body through a coil guide control device; a sealing membrane is arranged between the valve cover and the valve body in a mounting contact way, and the edge of the sealing membrane is fixed at the joint of the valve cover and the valve body and is matched with the valve cover to form secondary sealing; the lower sealing diaphragm assembly is used for controlling the on-off of the inlet and the outlet of the valve body, and main sealing is formed between the lower sealing diaphragm assembly and the valve body.

The upper guide rod is arranged in the upper guide rod connecting sleeve, and a large valve return spring is also arranged on the upper guide rod; the lower guide rod is arranged in the lower guide rod bearing sleeve, the upper guide rod connecting sleeve is fixed on the upper top of the inner cavity wall of the valve cover, and the lower guide rod bearing sleeve is fixed on the lower top of the inner cavity wall of the valve body; the upper guide rod and the lower guide rod move linearly in the respective guide sleeves.

The valve body inner cavity wall is provided with a valve body inlet pilot hole and a valve body outlet pilot hole, the valve body inlet pilot hole extends from the valve body inlet inner cavity wall, penetrates through the sealing diaphragm and the valve cover and reaches the top coil pilot control device, and the valve body inlet pilot hole and the upper valve cover inner cavity are switched on and off by whether the top coil pilot control device is electrified or not; similarly, the pilot control device of the coil at the top of the valve cover is arranged above the pilot hole of the valve cover outlet and extends downwards to penetrate through the sealing diaphragm to reach the pilot hole of the valve body outlet to reach the water discharging port.

The coil pilot control device mainly comprises a junction box, a coil, a small valve return spring, a guide rod and a sealing ring.

The beneficial effects of the utility model reside in that, compared with the prior art, after the upper guide rod is added, the upper guide rod is matched with the valve cover and the upper guide rod connecting sleeve, so that the upper sealing membrane component and the lower sealing membrane component are opened more smoothly and accurately to reduce the stress deviation; increase down guide bar and make upper seal membrane piece subassembly and lower seal membrane piece subassembly close rapider, stable, the closeness after the guide bar holds the nipple cooperation down, reduce the atress erroneous tendency. Meanwhile, the sealing bearing pressure of the product is greatly improved; the utility model discloses the bilayer structure of upper seal membrane subassembly and lower seal membrane subassembly can reach 0.05-2.2Mpa at most, 0.05-1.6 Mpa of rating can only use 0.05-1.0 Mpa with traditional single-layer seal structure is the highest, the product contrast of 0.05-0.8 Mpa of rating, but the usable pressure range promotes greatly, the blank in the large-bore solenoid valve rubber diaphragm seal structure 1.6 Mpa field has been solved, more stable for the liquid pipeline of design 1.6 Mpa, high-quality, reliable product selection is provided; the utility model discloses the solenoid valve can guarantee that medium flow is big, the more stable characteristics of flow.

Drawings

The present invention will be described in detail with reference to the accompanying drawings:

fig. 1 is a schematic structural diagram of the present invention.

The following are specific names of the labels in the drawings of the utility model: 1. a junction box; 2. a guide bar; 3. a valve cover outlet pilot hole; 4. an upper guide rod connecting sleeve; 5. an upper guide bar; 6. a water outlet; 7. a lower guide bar; 8. the lower guide rod is sleeved with a bearing sleeve; 9. a valve body; 10. an upper sealing membrane assembly; 11. a water inlet; 12. a valve body inlet pilot bore; 13. sealing the membrane; 14. a large valve return spring; 15. a valve cover; 16. a valve cover inlet pilot hole; 17. a seal ring; 18. a small valve return spring; 19. a coil; 20. the inner cavity of the valve cover; 21. an upper valve port; 22. a lower valve cavity port; 23. a lower sealing membrane assembly; 24. valve body outlet pilot bore.

Detailed Description

As shown in fig. 1, a novel electromagnetic valve mainly comprises a coil pilot control device, a valve cover 15 and a valve body 9; the upper sealing membrane component 10, the lower sealing membrane component 23, an upper guide rod 5 fixedly arranged on the upper end face of the upper sealing membrane component 10 and a lower guide rod 7 fixedly arranged on the lower end face of the lower sealing membrane component 23 are also included; the upper sealing diaphragm assembly 10 is correspondingly arranged in an upper valve cavity opening 21 of the valve body 9, the lower sealing diaphragm assembly 23 is correspondingly arranged in a lower valve cavity opening 22 of the valve body 9, the upper valve cavity opening 21 is used for blocking the inner cavity of the valve cover 20 and the inner cavity of the valve body, and the lower valve cavity opening 22 is used for blocking the inner cavity of the valve body; a sealing diaphragm 13 is arranged between the valve cover 15 and the valve body 9 in a mounting contact mode, and the surface of the sealing diaphragm 13 is fixed on the upper end face of the upper sealing diaphragm assembly 10 and matched with the valve body 9 to form a first layer of seal; the lower sealing diaphragm assembly 23 forms a second layer of seal with the valve body 9.

The upper guide rod 5 is arranged in the upper guide rod connecting sleeve 4, and the upper guide rod 5 is also provided with a large valve return spring 14; the lower guide rod 7 is arranged in the lower guide rod connecting sleeve 8, the upper guide rod connecting sleeve 4 is fixed on the upper top of the inner cavity wall of the valve cover 15, and the lower guide rod connecting sleeve 8 is fixed on the lower top of the inner cavity wall of the valve body 9; the upper guide rod 5 and the lower guide rod 7 perform telescopic motion in respective guide sleeves and drive the upper sealing membrane component to move up and down.

The inner cavity wall of the valve body is provided with a valve body inlet pilot hole 12 and a valve body outlet pilot hole 24, the valve body inlet pilot hole 12 extends from the inner cavity wall of the valve body inlet, penetrates through the sealing diaphragm 13 and the valve cover 15 and reaches the top coil pilot control device, and the on-off of the valve body inlet pilot hole 12 and the inner cavity of the upper valve cover is switched on and off by judging whether the top coil pilot control device is electrified or not; similarly, the valve cover outlet pilot hole 3 extends up to the top coil pilot control means of the valve cover 15 down to and through the sealing diaphragm 13 to the valve body outlet pilot hole 24 to the discharge outlet 6.

The coil pilot control device mainly comprises a junction box 1, a coil 19, a small valve return spring 18, a guide rod 2 and a sealing ring 17.

The large valve return spring 14 is connected to a small valve return spring 18 in the coil assembly by a bonnet inlet pilot bore 16.

The upper displacement of the upper sealing membrane component 10 of the utility model is realized by the upward movement of the upper guide rod 5 in the upper guide rod connecting sleeve 4 and the upward movement of the lower guide rod 7 in the lower guide rod bearing sleeve 8; the downward movement of the lower sealing diaphragm assembly 23 is performed by the upward guide rod 5 moving downward in the upper guide rod connecting sleeve 4 and the downward guide rod 7 moving downward in the lower guide rod receiving sleeve 8.

After the upper guide rod 5 is added and matched with the valve cover 15 and the upper guide rod connecting sleeve 4, the upper sealing membrane assembly 10 and the lower sealing membrane assembly 23 are opened more smoothly and accurately; after the lower guide rod 7 is additionally matched with the lower guide rod bearing sleeve 8, the upper sealing diaphragm assembly 10 and the lower sealing diaphragm assembly 23 are closed more quickly, stably and tightly, and meanwhile, the sealing bearing pressure of the product is greatly improved; the utility model discloses the bilayer structure of upper seal membrane subassembly 10 and lower seal membrane subassembly 23 can reach 0.05-2.2Mpa at most, and 0.05-1.6 Mpa of rating can only use 0.05-1.0 Mpa with traditional single-layer seal structure is the highest, the product contrast of 0.05-0.8 Mpa of rating, and usable pressure range promotes greatly, has solved the blank in the large-bore solenoid valve rubber diaphragm seal structure 1.6 Mpa field, provides more stable for the liquid pipeline of design 1.6 Mpa, high-quality, reliable product selection; the utility model discloses the medium flow is big can be guaranteed to solenoid valve two-chamber structure, the more stable characteristics of flow.

The utility model discloses the theory of operation is: when the electromagnetic pilot control device loses power, the outlet pilot hole 3 is cut off, a medium enters the valve cover inlet pilot hole 16 from the valve body inlet pilot hole 12 of the valve body 9, enters a space formed by the valve cover 15 and the upper sealing diaphragm assembly 10 to generate pressure, and under the elastic recovery action of the large valve return spring 14, the upper sealing diaphragm assembly 10 is pressed to drive the lower sealing diaphragm assembly 23 to displace and form sealing with the inlet and outlet sealing surfaces, namely the upper valve cavity opening 21 and the lower valve cavity opening 22 are blocked, the medium flow is cut off, and the electromagnetic valve is closed; when the coil pilot control device is powered on, the valve cover outlet pilot hole 3 is communicated, a medium reaches the valve body outlet pilot hole 24 from the inner cavity of the valve cover 15 through the valve cover outlet pilot hole 3 and is discharged to the valve body water outlet 6, so that the pressure in a space formed by the valve cover 15 and the upper sealing diaphragm assembly 10 is lost, the medium pressure of the water inlet 11 of the valve body 9 pushes the lower sealing diaphragm assembly 23 and the upper sealing diaphragm assembly 10 to generate displacement, the lower sealing diaphragm assembly and the upper sealing diaphragm assembly are separated from a sealing state, the medium flows to the water outlet 6 from the.

Claims

1. A novel electromagnetic valve mainly comprises a coil pilot control device, a valve cover and a valve body; the method is characterized in that: the upper sealing membrane component is fixedly arranged on the upper end face of the upper sealing membrane component, and the lower guiding rod is fixedly arranged on the lower end face of the lower sealing membrane component; the upper sealing diaphragm assembly is correspondingly arranged in an upper valve cavity opening of the valve body, the lower sealing diaphragm assembly is correspondingly arranged in a lower valve cavity opening of the valve body, namely the upper sealing diaphragm assembly is correspondingly arranged between the valve cover and the valve body and is sealed with an inner cavity of the valve cover to form a space, the inner cavity of the valve cover is combined with the upper sealing diaphragm assembly, and a driving force is provided for sealing the sealing surface of the lower sealing rubber assembly and the sealing surface of the valve body through a coil guide control device; a sealing membrane is arranged between the valve cover and the valve body in a mounting contact way, and the edge of the sealing membrane is fixed at the joint of the valve cover and the valve body and is matched with the valve cover to form secondary sealing; the lower sealing diaphragm assembly is used for controlling the on-off of the inlet and the outlet of the valve body, and main sealing is formed between the lower sealing diaphragm assembly and the valve body.

2. The new solenoid valve as claimed in claim 1, wherein: the upper guide rod is arranged in the upper guide rod connecting sleeve, and a large valve return spring is also arranged on the upper guide rod; the lower guide rod is arranged in the lower guide rod bearing sleeve, the upper guide rod connecting sleeve is fixed on the upper top of the inner cavity wall of the valve cover, and the lower guide rod bearing sleeve is fixed on the lower top of the inner cavity wall of the valve body; the upper guide rod and the lower guide rod move linearly in the respective guide sleeves.

3. The new solenoid valve as claimed in claim 1, wherein: the valve body inner cavity wall is provided with a valve body inlet pilot hole and a valve body outlet pilot hole, the valve body inlet pilot hole extends from the valve body inlet inner cavity wall, penetrates through the sealing diaphragm and the valve cover and reaches the top coil pilot control device, and the valve body inlet pilot hole and the upper valve cover inner cavity are switched on and off by whether the top coil pilot control device is electrified or not; similarly, the pilot control device of the coil at the top of the valve cover is arranged above the pilot hole of the valve cover outlet and extends downwards to penetrate through the sealing diaphragm to reach the pilot hole of the valve body outlet to reach the water discharging port.

4. The new solenoid valve as claimed in claim 1, wherein: the valve cover is provided with a valve cover inlet pilot hole and a valve cover outlet pilot hole.