CN215059790U

CN215059790U - Non-return water inlet electromagnetic valve

Info

Publication number: CN215059790U
Application number: CN202121200280.2U
Authority: CN
Inventors: 张克海; 倪可可
Original assignee: Zhejiang Kebo Electrical Appliances Co ltd
Current assignee: Zhejiang Kebo Electrical Appliances Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-07
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a non-return water inlet solenoid valve, including the valve body, set up the runner in the valve body, the runner includes the outflow way of inflow way and a plurality of intercommunication inflow ways, be provided with the check valve in the outflow way, the check valve includes casing, case, casing one end is the water inlet, the other end is the delivery port, case one end is tightly pushed up at the water inlet of casing by reset spring, the case is close to water inlet one end and is provided with the elastic sealing member, is provided with the sealing ring in the casing, reset spring effect makes the elastic sealing member terminal surface sticiss in the sealing ring and effectively seal, the cross-sectional area that the elastic sealing member is close to sealing ring one end is greater than the cross-sectional area of sealing ring, the elastic sealing member is the open mode when fluid enters along the water inlet direction, is provided with fluid passage between the outer wall of elastic sealing member and the casing inner wall; the utility model discloses a plane seal's mode is simple structure not only, can effectively seal, open and close rapidly according to water pressure intensity change moreover.

Description

Non-return water inlet electromagnetic valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a contrary solenoid valve that intakes.

Background

At present, the non-return water inlet electromagnetic valves in the industry all belong to one-way switches, but when water flow reversely flows from the water outlet, the water pressure of the water outlet is larger than the water pressure of the water inlet, the water pressure pushes up the sealing assembly, and the valve is opened to cause the water flow to flow into the water inlet from the shell to flow out.

If the traditional electromagnetic valve is to achieve the effect of reverse check of water flow, the check valve needs to be assembled after the water outlet is connected with the PE pipe, the number of working procedures needs to be increased, the size is large, and the cost is high.

Patent CN201921092517.2 discloses a three-way electromagnetic valve with check, which comprises a one-way valve disposed in a liquid outlet pipe, wherein the one-way valve comprises a one-way valve body and a one-way valve core, a one-way valve guide sleeve is disposed at one end in the one-way valve body, guide sleeve ribs uniformly distributed in the circumferential direction are disposed on the outer wall of the one-way valve guide sleeve, the guide sleeve ribs extend outwards and are connected with the inner wall of the one-way valve body, an inner convex portion is disposed on the inner wall of the other end of the one-way valve body, the inner convex portion has an inner diameter smaller than the outer diameter of the one-way valve core, one end of the one-way valve core is inserted into and movably mounted in the one-way valve guide sleeve, the one-way valve core is pressed against the inner convex portion by a one-way valve spring, an outer convex portion is disposed on the outer wall of the one-way valve body, the outer convex portion is pressed and deformationally mounted on the inner wall of a first liquid outlet pipe or a second liquid outlet pipe, the structure presses the valve core against the inner convex portion by the spring, and the side surface is sealed, the opening and closing have a transitional buffering process, and the opening and closing are not rapid enough.

Disclosure of Invention

The utility model aims at overcoming the defects existing in the prior art and providing a non-return water inlet electromagnetic valve.

In order to achieve the above purpose, the utility model provides a following technical scheme: a check water inlet electromagnetic valve comprises a valve body and a flow channel arranged in the valve body, wherein the flow channel comprises a flow inlet channel and a flow outlet channel communicated with the flow inlet channel, a check valve is arranged in the flow outlet channel and comprises a shell and a valve core, one end of the shell is a water inlet, the other end of the shell is a water outlet, a water outlet seat is arranged in the water outlet of the shell, one end of the valve core is inserted into and movably arranged in the water outlet seat, the other end of the valve core is tightly propped against the water inlet of the shell by a reset spring, the water inlet is one end of the check valve close to an inner cavity of the valve body, one end of the shell far away from the water outlet seat is provided with a valve seat, the water inlet is arranged on the valve seat, one end of the valve seat close to the valve core is protruded towards the direction of the valve core to form a sealing ring, one end of the valve core is provided with an elastic sealing element, and the end face of the elastic sealing element is tightly pressed on the sealing ring to effectively seal the sealing ring under the action of the reset spring, the diameter of the end, attached to the sealing ring, of the elastic sealing element is larger than that of the sealing ring, the elastic sealing element is in an open state when the elastic sealing element flows from a water inlet to a water outlet in the fluid direction, and a fluid channel is formed between the outer wall of the elastic sealing element and the inner wall of the shell.

As a preferred technical scheme of the utility model, elastic sealing element has elasticity and elastic sealing element and sealing ring laminating one end and is the plane, the sealing ring is whole to be cyclic annularly, the sealing ring with plane laminating one end be the arc surface.

As a preferred technical solution of the present invention, a first connecting groove and a second connecting groove communicated with the first connecting groove are provided inside the elastic sealing member, and the diameter of the first connecting groove is larger than that of the second connecting groove; the valve core comprises a first connecting part, a second connecting part and a butting part, the first connecting part and the second connecting part are respectively positioned in the first connecting groove and the second connecting groove, and the butting part butts against one end, close to the valve core, of the elastic sealing element.

As a preferred technical scheme of the utility model, butt portion is close to a water seat one end and has seted up the annular groove, reset spring arranges the annular groove in and goes out between the water seat.

As a preferred technical scheme of the utility model, be provided with spacing seat in the play water stand, spacing seat periphery is provided with a plurality of splice bars, and just spacing seat is towards the setting of water inlet one end protrusion splice bar surface, spacing seat is located to reset spring pot head, and other end butt is in the ring channel.

As a preferred technical scheme of the utility model, shells inner wall is equipped with the fixture block, it is provided with and blocks complex draw-in groove to go out the water stand periphery, fixture block and draw-in groove joint cooperation.

As a preferred technical scheme of the utility model, it carries out the spacing sleeve of axial to the check valve to be provided with in the discharge passage, the sleeve offsets with check valve delivery port one end.

As a preferred technical scheme of the utility model, the sleeve outer wall is provided with spacing lug, go out the runner periphery be provided with spacing lug complex spacing step, spacing step is relative spacing lug one side and is passed through first guide face transition.

As a preferred technical scheme of the utility model, casing outer wall forms clearance fit with the inner wall that outflows, the casing periphery is provided with the ring channel, and is provided with O type sealing washer in the ring channel, O type sealing washer periphery forms interference fit with the inner wall that outflows.

Compared with the prior art, the invention has the beneficial effects that:

1. the valve core is driven by the reset spring to enable the elastic sealing element to be attached to the sealing ring, the arc surface of the sealing ring is abutted to the plane of the elastic sealing element to form effective sealing, the sealing structure can be rapidly opened and closed along with hydraulic pressure change, and the structure is simple.

2. Through setting up the sleeve, can lead to deviating from because of water pressure changes when avoiding using to check valve axial spacing, influence the result of use.

3. Through setting up ring channel and spacing seat, make reset spring stability better, quick drive valve core to improve sealed efficiency.

Drawings

FIG. 1 is a front view of the present embodiment;

FIG. 2 is a sectional view of embodiment A-A;

FIG. 3 is a sectional view of the check valve of the present embodiment;

FIG. 4 is a cross-sectional view of the valve cartridge and elastomeric seal of the present embodiment;

FIG. 5 is an enlarged view of portion A of FIG. 3;

FIG. 6 is an enlarged view of portion B of FIG. 3;

FIG. 7 is an enlarged view of portion C of FIG. 2;

fig. 8 is a perspective view of the check valve of the present embodiment.

Reference numerals: 1. a valve body; 2. a flow inlet channel; 3. discharging the flow channel; 4. a check valve; 5. a housing; 6. a valve core; 7. a water inlet; 8. a water outlet; 9. a water outlet base; 10. an elastomeric seal; 11. a seal ring; 12. a sleeve; 13. a limiting bump; 14. a limiting step; 15. a first guide surface; 16. an annular groove; 17. a first connecting groove; 18. a second connecting groove; 19. a first connection portion; 20. a second connecting portion; 21. an abutting portion; 22. an annular groove; 23. connecting ribs; 24. a limiting seat; 25. a return spring; 26. a clamping block; 27. a card slot; 28. o-shaped sealing ring 29 and valve seat.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 8, a check water inlet solenoid valve comprises a valve body 1 and a flow passage arranged in the valve body 1, wherein the flow passage comprises a flow inlet passage 2 and a flow outlet passage 3 communicated with the flow inlet passage 2, a check valve 4 is arranged in the flow outlet passage 3, the check valve 4 comprises a shell 5 and a valve core 6, one end of the shell 5 is a water inlet 7, the other end of the shell 5 is a water outlet 8, a water outlet seat 9 is arranged in the water outlet 8 of the shell 5, one end of the valve core 6 is inserted and movably arranged in the water outlet seat 9, the other end of the valve core 6 is tightly propped against the water inlet 7 of the shell 5 by a return spring 25, the water inlet 7 is one end of the check valve 4 close to an inner cavity of the valve body 1, one end of the shell 5 far away from the water outlet seat 9 is provided with a valve seat 29, the valve seat 29 and the shell 5 are an integral piece, the water inlet 7 is arranged on the valve seat 29, one end of the valve seat 29 close to the valve core 6 protrudes towards the direction to form a sealing ring 11, one end of the valve core 6 is provided with an elastic sealing element 10, the end face of the elastic sealing element 10 is tightly pressed on the sealing ring 11 to be effectively sealed under the action of a return spring 25, the diameter of one end, attached to the sealing ring 11, of the elastic sealing element 10 is larger than that of the sealing ring 11, the elastic sealing element 10 is in an open state when flowing from the water inlet 7 to the water outlet 8 in the fluid direction, a fluid channel is formed between the outer wall of the elastic sealing element 10 and the inner wall of the shell 5, and the sealing ring 11 can also be in sealing fit with the water inlet 7 of the valve seat 29 through the end face of the elastic sealing element 10 protruding towards the direction of the valve seat 29.

The elastic sealing element 10 is made of rubber materials, one end, attached to the sealing ring 11, of the elastic sealing element 10 is a plane, the sealing ring 11 is integrally annular, and one end, attached to the plane, of the sealing ring 11 is an arc surface.

The valve core 6 is driven by the reset spring 25 to enable the elastic sealing element 10 to be attached to the sealing ring 11, the arc surface of the sealing ring 11 is abutted to the plane of the elastic sealing element 10 to form effective sealing, the sealing structure can be rapidly opened and closed along with the change of water pressure, and the structure is simple.

The elastic sealing element 10 is internally provided with a first connecting groove 17 and a second connecting groove 18 communicated with the first connecting groove 17, and the diameter of the first connecting groove 17 is larger than that of the second connecting groove 18, the valve core 6 in the embodiment is a plastic valve core 6, the valve core 6 comprises a first connecting portion 19, a second connecting portion 20 and a butting portion 21, the first connecting portion 19 and the second connecting portion 20 are respectively located in the first connecting groove 17 and the second connecting groove 18, and the butting portion 21 abuts against one end, close to the valve core 6, of the elastic sealing element 10.

The abutting portion 21 is close to one end of the water outlet seat 9 and is provided with an annular groove 22, the reset spring 25 is arranged between the annular groove 22 and the water outlet seat 9, a limiting seat 24 is arranged in the water outlet seat 9, the periphery of the limiting seat 24 is provided with a plurality of connecting ribs 23, the surface of the limiting seat 24 protrudes towards one end of the water inlet 7 and is provided with the connecting ribs 23, one end of the reset spring 25 is sleeved on the limiting seat 24, and the other end of the reset spring abuts against the inside of the annular groove 16.

Through setting up ring channel 16 and spacing seat 24, make reset spring 25 stability better, drive plug 6 fast to improve sealed efficiency.

The inner wall of the shell 5 is provided with a clamping block 26, the periphery of the water outlet seat 9 is provided with a clamping groove 27 matched with the clamping block 26, and the clamping block 26 is matched with the clamping groove 27 in a clamping manner.

Be provided with in the runner 3 and carry out the sleeve 12 that the axial is spacing to check valve 4, sleeve 12 offsets with 8 one ends in the delivery port of check valve 4, and sleeve 12 outer wall is provided with spacing lug 13, and the runner 3 periphery of outflowing is provided with the spacing step 14 with spacing lug 13 complex, and the relative spacing lug 13 one side of spacing step 14 passes through the transition of first guide face 15.

Through setting up sleeve 12, can be spacing to check valve 4 axial, lead to deviating from because of water pressure changes when avoiding using, influence the result of use.

The outer wall of the shell 5 and the inner wall of the outflow channel 3 form clearance fit, the periphery of the shell 5 is provided with an annular groove 16, an O-shaped sealing ring 28 is arranged in the annular groove 16, and the periphery of the O-shaped sealing ring 28 and the inner wall of the outflow channel 3 form interference fit.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications fall within the scope of the present invention, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a contrary solenoid valve that intakes, includes the valve body, sets up the runner in the valve body, the runner is including the runner that outflows of runner and intercommunication runner, be provided with the check valve in the runner that outflows, the check valve includes casing, case, casing one end is the water inlet, the other end is the delivery port, be provided with out the water stand in the casing delivery port, the one end of case inserts and mobilizable installing in a water stand, the case other end is by the water inlet of reset spring tight top at the casing, the water inlet is the one end that the check valve is close to the valve body inner chamber, its characterized in that: the water outlet valve is characterized in that a valve seat is arranged at one end, away from the water outlet seat, of the shell, the water inlet is arranged on the valve seat, one end, close to the valve core, of the valve seat protrudes towards the direction of the valve core to form a sealing ring, an elastic sealing element is arranged at one end of the valve core, the end face of the elastic sealing element is tightly pressed on the sealing ring to be effectively sealed under the action of a reset spring, the diameter of one end, attached to the sealing ring, of the elastic sealing element is larger than that of the sealing ring, the elastic sealing element is in an open state when the water inlet flows towards the water outlet in the fluid direction, and a fluid channel is formed between the outer wall of the elastic sealing element and the inner wall of the shell.

2. The non-return water inlet electromagnetic valve according to claim 1, wherein the elastic sealing element has elasticity, the joint end of the elastic sealing element and the sealing ring is a plane, the sealing ring is annular as a whole, and the joint end of the sealing ring and the plane is an arc surface.

3. The non-return water inlet electromagnetic valve according to claim 1, wherein a first connecting groove and a second connecting groove communicated with the first connecting groove are arranged in the elastic sealing element, and the diameter of the first connecting groove is larger than that of the second connecting groove; the valve core comprises a first connecting part, a second connecting part and a butting part, the first connecting part and the second connecting part are respectively positioned in the first connecting groove and the second connecting groove, and the butting part butts against one end, close to the valve core, of the elastic sealing element.

4. The non-return water inlet electromagnetic valve according to claim 3, wherein an annular groove is formed at one end of the abutting part close to the water outlet seat, and the return spring is arranged between the annular groove and the water outlet seat.

5. The non-return water inlet electromagnetic valve according to claim 4, wherein a limiting seat is arranged in the water outlet seat, a plurality of connecting ribs are arranged on the periphery of the limiting seat, the limiting seat protrudes out of the surface of the connecting ribs towards one end of the water inlet, one end of the reset spring is sleeved on the limiting seat, and the other end of the reset spring is abutted against the annular groove.

6. The non-return water inlet electromagnetic valve according to claim 1, wherein a clamping block is arranged on the inner wall of the housing, a clamping groove matched with the clamping block is arranged on the periphery of the water outlet seat, and the clamping block is clamped and matched with the clamping groove.

7. The check water inlet electromagnetic valve according to claim 1, wherein a sleeve for axially limiting the check valve is arranged in the outlet channel, and the sleeve abuts against one end of a water outlet of the check valve.

8. The non-return water inlet electromagnetic valve according to claim 7, wherein the outer wall of the sleeve is provided with a limit bump, the periphery of the outlet channel is provided with a limit step matched with the limit bump, and one side of the limit step opposite to the limit bump is transited through a first guide surface.

9. The non-return water inlet electromagnetic valve according to claim 1, wherein the outer wall of the housing and the inner wall of the outflow channel form a clearance fit, an annular groove is formed in the outer periphery of the housing, an O-shaped sealing ring is arranged in the annular groove, and the outer periphery of the O-shaped sealing ring and the inner wall of the outflow channel form an interference fit.