CN219062531U - One-inlet two-outlet reversing valve - Google Patents

Abstract

The present utility model relates to the field of fluid control valves. The utility model discloses an inlet-outlet reversing valve, which comprises a valve body and an electromagnetic valve head, wherein the valve body is provided with an inlet, a first outlet, a second outlet, a first pressure balancing cavity, a second pressure balancing cavity, a first pressurizing hole, a second pressurizing hole and a first pressure releasing hole, the first outlet and the second outlet are respectively controlled to be communicated with the inlet or not through the first pressure balancing cavity and the second pressure balancing cavity, the first pressure balancing cavity and the second pressure balancing cavity are respectively used for controlling the opening and the closing of the first pressure balancing cavity and the second pressure balancing cavity, the first pressure balancing cavity and the second pressure balancing cavity are respectively communicated with the inlet through the first pressure releasing hole and the second pressure balancing cavity, the size of the first pressure balancing cavity is larger than that of the first pressure releasing hole, the size of the second pressure balancing cavity is larger than that of the second pressure releasing hole, and the electromagnetic valve head is used for switching on of the first pressurizing hole and the second pressurizing hole.

Description

One-inlet two-outlet reversing valve

Technical Field

The utility model belongs to the field of fluid control valves, and particularly relates to a one-in two-out reversing valve.

Background

Solenoid valves are valve elements that use electromagnetic waves to control the opening or closing of a valve, and may be adapted to control a variety of fluids, including liquids, gases, and the like. The electromagnetic valve can be matched with different circuits to realize expected control, the control precision and flexibility can be ensured, the control is simple, and the electromagnetic valve is widely applied to modern industrial automatic control systems.

In some application scenarios, it is often necessary to use an electromagnetic valve with two outlets and two outlets capable of being switched to realize fluid reversing, most of the existing electromagnetic valves are realized by two electromagnetic valves, and the electromagnetic valves are troublesome to install and have high cost. Chinese patent publication: the improved electromagnetic valve disclosed by CN215522170U realizes the function that one electromagnetic valve has two outlets and the two outlets can be switched, and better solves the problems, but the improved electromagnetic valve is realized by adopting two electromagnetic valve heads, and has the problems of complex structure, large volume, adverse product miniaturization and high cost.

Disclosure of Invention

The utility model aims to provide a one-inlet two-outlet reversing valve which is used for solving the technical problems.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an advance two switching-over valves, including a valve body and solenoid valve head, be equipped with the import on the valve body, first export, the second export, first flow stopping subassembly, the second flow stopping subassembly, first pressure balance chamber, the second pressure balance chamber, first booster orifice, the second booster orifice, first pressure release hole and second pressure release hole, first export and second export control respectively with import intercommunication through first flow stopping subassembly and second flow stopping subassembly, first pressure balance chamber and second pressure balance chamber are used for controlling opening and close of first flow stopping subassembly and second flow stopping subassembly respectively, first pressure balance chamber and second pressure balance chamber communicate with the import through first booster orifice and second booster orifice respectively, first pressure balance chamber and second pressure balance chamber communicate with second export and first export through first pressure release hole and second pressure release hole respectively, the size of first booster orifice is greater than first pressure release hole size, the size of second booster orifice is greater than the solenoid valve head, be used for switching on one of first booster orifice and second booster orifice.

Further, the electromagnetic valve head is a bistable electromagnetic valve head.

Further, the valve body includes disk seat and valve gap, and the valve gap lid is established in the disk seat top, and import, first export, second export, first flow stopping subassembly and second flow stopping subassembly all set up on the disk seat, and first booster hole, second booster hole, first pressure release hole and second pressure release hole set up on the valve gap.

Further, the first flow stopping component is a first membrane component, and the second flow stopping component is a second membrane component.

Still further, the first diaphragm subassembly includes first diaphragm, forms first pressure balance chamber between the upper end of first diaphragm and the valve gap, is equipped with the first fluid passage with first pressure balance chamber intercommunication on the valve gap, first fluid passage respectively with first pressure boost hole and first pressure release hole intercommunication.

Further, the second diaphragm assembly comprises a second diaphragm, a second pressure balance cavity is formed between the upper end part of the second diaphragm and the valve cover, a second fluid channel communicated with the second pressure balance cavity is arranged on the valve cover, and the second fluid channel is respectively communicated with the second pressurizing hole and the second pressure relief hole.

Further, be equipped with open-top's installation cavity on the valve gap, the solenoid valve head is installed on the installation cavity and is sealed the open-top of installation cavity, and the entrance point of first booster orifice and second booster orifice all sets up in the installation cavity, installation cavity and import intercommunication.

Further, the electromagnetic valve head comprises a movable iron core and a sealing plug linked with the movable iron core, the sealing plug is positioned in the mounting cavity, and the movable iron core is used for driving the sealing plug to seal and plug the inlet end of the first pressurizing hole or the inlet end of the second pressurizing hole.

Further, the inlet end of the first pressurizing hole is positioned below the sealing plug, and the inlet end of the second pressurizing hole is positioned above the sealing plug.

Further, a plug spring is arranged between the inlet end of the first pressurizing hole and the sealing plug.

The beneficial technical effects of the utility model are as follows:

the utility model has the advantages that the two outlets can be switched and communicated with the inlet, only one electromagnetic valve head is needed, the structure is simple and compact, the miniaturization is facilitated, the cost is low, in addition, the pilot type structure is adopted, and the utility model is suitable for larger flow control.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of an embodiment of the present utility model;

FIG. 2 is a block diagram of another angle of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view I of an embodiment of the present utility model;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a second cross-sectional view of an embodiment of the present utility model;

FIG. 6 is a third cross-sectional view of an embodiment of the present utility model;

FIG. 7 is an exploded view of an embodiment of the present utility model;

fig. 8 is a partial block diagram of an embodiment of the present utility model.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

The utility model will now be further described with reference to the drawings and detailed description.

As shown in fig. 1-8, an inlet-outlet reversing valve comprises a valve body 1 and an electromagnetic valve head 2, wherein an inlet 11, a first outlet 12, a second outlet 13, a first flow stopping component 31, a second flow stopping component 32, a first pressure balancing cavity 41, a second pressure balancing cavity 42, a first pressurizing hole 51, a second pressurizing hole 52, a first pressure relief hole 61 and a second pressure relief hole 62 are arranged on the valve body 1, the first outlet 12 and the second outlet 13 are respectively communicated with the inlet 11 or not through the first flow stopping component 31 and the second flow stopping component 32, and the first pressure balancing cavity 4 and the second pressure balancing cavity 42 are respectively used for controlling the opening and closing of the first flow stopping component 31 and the second flow stopping component 32 so as to respectively control the first outlet 12 and the second outlet 13 to be communicated with the inlet 11 or cut off.

The first pressure balance chamber 41 and the second pressure balance chamber 42 are respectively communicated with the inlet 11 through a first pressure increasing hole 51 and a second pressure increasing hole 52, the first pressure balance chamber 41 and the second pressure balance chamber 42 are respectively communicated with the second outlet 13 and the first outlet 12 through a first pressure releasing hole 61 and a second pressure releasing hole 62, the size of the first pressure increasing hole 51 is larger than that of the first pressure releasing hole 61, namely, the flow rate of the first pressure increasing hole 51 is larger than that of the first pressure releasing hole 61, the size of the second pressure increasing hole 52 is larger than that of the second pressure releasing hole 62, namely, the flow rate of the second pressure increasing hole 52 is larger than that of the second pressure releasing hole 62, and the electromagnetic valve head 2 is used for switching to conduct one of the first pressure increasing hole 51 and the second pressure increasing hole 52.

In this embodiment, the valve body 1 has a substantially rectangular parallelepiped structure, the inlet 11 is disposed on a side surface of the valve body 1 including a long side, the first outlet 12 and the second outlet 13 are disposed on two other side surfaces adjacent to the side surface where the inlet 11 is disposed, and by adopting this structure, the structure of the valve body 1 is more reasonable and compact, but not limited thereto, in some embodiments, the valve body 1 may also have other structures such as a cylinder, a cube, etc., and the inlet 11, the first outlet 12 and the second outlet 13 may be disposed at other positions of the valve body 1, which may be specifically selected according to actual needs.

The valve body 1 comprises a valve seat 14 and a valve cover 15, the valve cover 15 is covered and arranged above the valve seat 14, an inlet 11, a first outlet 12, a second outlet 13, a first flow stopping component 31 and a second flow stopping component 32 are all arranged on the valve seat 14, a first water passing cavity 141 and a second water passing cavity 142 penetrating through the top of the valve seat 14 are arranged on the valve seat 14, the first water passing cavity 141 is communicated with the inlet 11 and the first outlet 12 respectively, the second water passing cavity 142 is communicated with the inlet 11 and the second outlet 13 respectively, the first flow stopping component 31 and the second flow stopping component 32 are respectively arranged in the first water passing cavity 141 and the second water passing cavity 142, and the valve cover 15 is covered and arranged on the valve seat 14 to seal the top openings of the first water passing cavity 141 and the second water passing cavity 142. In this embodiment, the valve seat 14 and the valve cover 15 are fastened and fixed by screws, so that the valve seat 14 and the valve cover 15 are stable and easy to be assembled and disassembled, but the present utility model is not limited thereto, and in some embodiments, the valve seat 14 and the valve cover 15 may be fixed by other fixing methods, such as welding, bonding, etc.

In this embodiment, the first flow stopping assembly 31 is a first diaphragm assembly, the second flow stopping assembly 32 is a second diaphragm assembly, and the cost is low, but the wear is not easy, but in some embodiments, the first flow stopping assembly 31 and the second flow stopping assembly 32 may be implemented by a piston assembly or the like.

The first diaphragm assembly includes a first diaphragm 311, and a first pressure balance chamber 41 is formed between an upper end portion of the first diaphragm 311 and the valve cover 15 for controlling the first diaphragm 311 to move up and down to open or close the first outlet 12. The first membrane assembly further comprises a first membrane support 312, and the first membrane support 312 is fixedly arranged on the first membrane 311 to support the first membrane 311, so that the closing effect of the first membrane 311 on the first outlet 12 is improved.

The second diaphragm assembly includes a second diaphragm 321, and a second pressure balance chamber 42 is formed between an upper end portion of the second diaphragm 321 and the valve cover 15 for controlling the second diaphragm 321 to move up and down to open or close the second outlet 13. The second diaphragm assembly further comprises a second diaphragm bracket 322, and the second diaphragm bracket 322 is fixedly arranged on the second diaphragm 321 to support the second diaphragm 321, so that the closing effect of the second diaphragm 321 on the second outlet 13 is improved. Reference is made more particularly to the diaphragm assembly structure of existing solenoid valves, which will not be described in detail.

The first pressure increasing hole 51, the second pressure increasing hole 52, the first pressure releasing hole 61, and the second pressure releasing hole 62 are provided on the valve cover 15. The valve cover 15 is provided with a first fluid channel 411 communicated with the first pressure balance cavity 41, the first fluid channel 411 is respectively communicated with the first pressurizing hole 51 and the first pressure relief hole 61, the valve cover 15 is provided with a second fluid channel 421 communicated with the second pressure balance cavity 42, and the second fluid channel 421 is respectively communicated with the second pressurizing hole 52 and the second pressure relief hole 62. By adopting the structure, the whole structure is more compact and is easy to process and assemble, but the structure is not limited to the structure.

In this embodiment, the valve cover 15 is provided with a mounting cavity 151 with an open top, the electromagnetic valve head 2 is mounted on the mounting cavity 151 and seals the open top of the mounting cavity 151, inlet ends of the first pressurizing hole 51 and the second pressurizing hole 52 are both arranged in the mounting cavity, and the mounting cavity 151 is communicated with the inlet 11. Preferably, the electromagnetic valve head 2 is locked and fixed on the mounting cavity 151 by a screw, so that the stability is good, and the assembly and the disassembly are convenient, but the utility model is not limited thereto.

The electromagnetic valve head 2 comprises a movable iron core 21 and a sealing plug 22 linked with the movable iron core 21, the sealing plug 22 is positioned in the mounting cavity 151, and the movable iron core 21 is used for driving the sealing plug 22 to move up and down to switch so as to seal and plug the inlet end of the first pressurizing hole 51 or the inlet end of the second pressurizing hole 52.

In this embodiment, the inlet end of the first supercharging hole 51 is located below the sealing plug 22, and the inlet end of the second supercharging hole 52 is located above the sealing plug 22, which is more compact and reasonable in structure and high in reliability, but is not limited thereto.

Preferably, the sealing plug 22 is made of rubber material, which is low in cost and good in sealing effect, and of course, in some embodiments, the sealing plug 22 may be made of other sealing materials. The sealing plug 22 is fixedly connected with the lower end part of the movable iron core 21 through a connecting rod 23, specifically, the upper end part of the connecting rod 23 is fixedly inserted into the lower end part of the movable iron core 21 through a limiting sleeve 24, and the sealing plug 22 is fixedly sleeved on the lower end part of the connecting rod 23.

In this embodiment, the gland 7 is further disposed in the mounting cavity 151, the second pressurizing hole 52 is disposed on the gland 7, the connecting rod 23 movably penetrates through the second pressurizing hole 52 to enable the sealing plug 22 to be located below the second pressurizing hole 52, the size of the connecting rod 23 is smaller than that of the second pressurizing hole 52, and the flow rate of the gap between the connecting rod 23 and the second pressurizing hole 52, which is larger than that of the second pressure release air 62, is satisfied.

Preferably, in the present embodiment, the electromagnetic valve head 2 is a bistable electromagnetic valve head, which has low power consumption, but is not limited thereto, and in some embodiments, the electromagnetic valve head 2 may be implemented by using an existing monostable electromagnetic valve head or the like.

The electromagnetic valve head 2 further comprises a coil bracket 25, a coil 26 wound on the coil bracket 25, a static iron core 27 and an iron core spring 28, wherein the static iron core 27 is fixedly arranged in the coil bracket 25 and is positioned above the movable iron core 21, and the iron core spring 28 is arranged between the static iron core 25 and the movable iron core 21, and the more specific structure can refer to the existing bistable electromagnetic valve structure and is not described in detail.

Further, in this embodiment, a plug spring 221 is disposed between the inlet end of the first pressurizing hole 51 and the sealing plug 22, so as to improve the reliability of opening the first pressurizing hole 51 by the sealing plug 22.

Working process

When the coil 26 of the electromagnetic valve head 2 is positively (or negatively) pulsed, the movable iron core 21 moves downwards, and drives the sealing plug 22 to move downwards through the connecting rod 23 until the sealing plug 22 seals and plugs the first pressurizing hole 51, at this time, the second pressurizing hole 52 is conducted (as shown in fig. 3, 4 and 6), the first pressure balance cavity 41 is depressurized through the first pressure release hole 61, the first flow stopping assembly 31 moves upwards to open the first outlet 12, and the first outlet 12 is conducted with the inlet 11; the second pressure balance cavity 42 is pressurized through the second pressurizing hole 52, the second flow stopping assembly 32 moves downwards to shut off the second outlet 13, the fluid of the second pressure releasing hole 62 flows out from the first outlet 12, and the second outlet 13 does not flow out; when negative (or positive) pulse is given to the coil 26 of the electromagnetic valve head 2, the movable iron core 21 moves upwards, and the sealing plug 22 is driven by the connecting rod 23 to move upwards until the sealing plug 22 seals the second pressurizing hole 52, at this time, the first pressurizing hole 51 is conducted, the second pressure balance cavity 42 is depressurized through the second pressure release hole 62, the second flow stopping assembly 32 moves upwards to open the second outlet 13, and the second outlet 13 is conducted with the inlet 11; the first pressure balance cavity 41 is pressurized through the first pressurizing hole 51, the first flow stopping assembly 31 moves downwards to shut off the first outlet 12, the fluid of the first pressure releasing hole 61 flows out of the second outlet 13, and the fluid of the first outlet 12 is not discharged. Therefore, the device has the functions of a first inlet and a second outlet, the two outlets can be selectively switched and communicated with the inlet, only one electromagnetic valve head is needed, the device is simple and compact in structure, beneficial to miniaturization and low in cost, and in addition, the device adopts a pilot type structure and is suitable for large flow control.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. A business turn over two switching-over valves, its characterized in that: the electromagnetic valve comprises a valve body and an electromagnetic valve head, wherein an inlet, a first outlet, a second outlet, a first flow stopping assembly, a second flow stopping assembly, a first pressure balancing cavity, a second pressure balancing cavity, a first pressurizing hole, a second pressurizing hole, a first pressure releasing hole and a second pressure releasing hole are formed in the valve body, the first outlet and the second outlet are respectively controlled to be communicated with the inlet through the first flow stopping assembly and the second flow stopping assembly, the first pressure balancing cavity and the second pressure balancing cavity are respectively used for controlling the opening and closing of the first flow stopping assembly and the second flow stopping assembly, the first pressure balancing cavity and the second pressure balancing cavity are respectively communicated with the inlet through the first pressurizing hole and the second pressurizing hole, the first pressurizing hole and the second pressure balancing cavity are respectively communicated with the second outlet and the first outlet through the first pressurizing hole, the first pressurizing hole is larger than the first pressure releasing hole, the second pressurizing hole is larger than the second pressurizing hole, and the electromagnetic valve head is used for switching on one of the first pressurizing hole and the second pressurizing hole.

2. A two-in/two-out reversing valve according to claim 1, wherein: the electromagnetic valve head is a bistable electromagnetic valve head.

3. A one-in two-out reversing valve according to claim 1 or 2, characterized in that: the valve body comprises a valve seat and a valve cover, the valve cover is arranged above the valve seat, the inlet, the first outlet, the second outlet, the first flow stopping component and the second flow stopping component are all arranged on the valve seat, and the first pressurizing hole, the second pressurizing hole, the first pressure releasing hole and the second pressure releasing hole are arranged on the valve cover.

4. A one-in two-out reversing valve according to claim 3, wherein: the first flow stopping component is a first membrane component, and the second flow stopping component is a second membrane component.

5. The one-in two-out reversing valve according to claim 4, wherein: the first diaphragm assembly comprises a first diaphragm, a first pressure balance cavity is formed between the upper end of the first diaphragm and the valve cover, a first fluid channel communicated with the first pressure balance cavity is arranged on the valve cover, and the first fluid channel is respectively communicated with the first pressurizing hole and the first pressure relief hole.

6. The one-in two-out reversing valve according to claim 4, wherein: the second diaphragm assembly comprises a second diaphragm, a second pressure balance cavity is formed between the upper end part of the second diaphragm and the valve cover, a second fluid channel communicated with the second pressure balance cavity is arranged on the valve cover, and the second fluid channel is respectively communicated with the second pressurizing hole and the second pressure relief hole.

7. The one-in two-out reversing valve according to claim 4, wherein: the valve cover is provided with an installation cavity with an open top, the electromagnetic valve head is installed on the installation cavity and seals the open top of the installation cavity, the inlet ends of the first pressurizing hole and the second pressurizing hole are arranged in the installation cavity, and the installation cavity is communicated with the inlet.

8. The one-in two-out reversing valve according to claim 7, wherein: the electromagnetic valve head comprises a movable iron core and a sealing plug which is linked with the movable iron core, the sealing plug is positioned in the mounting cavity, and the movable iron core is used for driving the sealing plug to seal and plug the inlet end of the first pressurizing hole or the inlet end of the second pressurizing hole.

9. A two-in/two-out reversing valve according to claim 8, wherein: the inlet end of the first pressurizing hole is positioned below the sealing plug, and the inlet end of the second pressurizing hole is positioned above the sealing plug.

10. A two-in/two-out reversing valve according to claim 9, wherein: and a plug spring is arranged between the inlet end of the first pressurizing hole and the sealing plug.

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