CN210637543U

CN210637543U - Four-way reversing valve

Info

Publication number: CN210637543U
Application number: CN201921353904.7U
Authority: CN
Inventors: 韩润虎
Original assignee: Zhejiang Dunan Machinery Co Ltd
Current assignee: Zhejiang Dunan Machinery Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-05-29
Anticipated expiration: 2029-08-20

Abstract

The utility model provides a four-way reversing valve, this four-way reversing valve includes: a valve body having a plurality of valve ports; the valve core assembly is movably arranged in the valve body and is used for controlling the communication condition among the plurality of valve ports; the first magnetic part is positioned in the valve body and arranged on the valve core assembly. Through the technical scheme that this application provided, can solve the problem that the maintenance among the prior art is difficult, cost of maintenance is high.

Description

Four-way reversing valve

Technical Field

The utility model relates to a four-way reversing valve technical field particularly, relates to a four-way reversing valve.

Background

At present, a four-way reversing valve comprises a valve body and a valve core assembly, wherein the valve core assembly is arranged corresponding to a plurality of valve ports of the valve body. The valve core assembly can be used for controlling the communication condition of a plurality of valve ports by moving the valve core assembly from two ends of the valve body so as to switch the working mode of the air conditioner. When the valve core assembly moves to the middle position of the valve ports, the valve ports are communicated with each other, high-pressure gas and low-pressure gas in the valve body are communicated in series in a short circuit mode, and the gas pressure in the valve body tends to be balanced quickly.

In prior art, if the case subassembly stays in the intermediate position of a plurality of valve ports for a long time, can lead to the case subassembly to break down unable removal, can only maintain through the mode of changing the four-way reversing valve this moment. Therefore, the prior art has the problems of difficult maintenance and high maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a four-way reversing valve to solve the problem that the maintenance difficulty among the prior art, cost of maintenance are high.

The utility model provides a four-way reversing valve, four-way reversing valve includes: a valve body having a plurality of valve ports; the valve core assembly is movably arranged in the valve body and is used for controlling the communication condition among the plurality of valve ports; the first magnetic part is positioned in the valve body and arranged on the valve core assembly.

Further, the spool assembly includes: the bracket is movably arranged in the valve body; the sliding block is connected with the bracket and is arranged corresponding to the valve ports, the sliding block is used for controlling the communication state of the valve ports, and the first magnetic part is arranged on the bracket and/or the sliding block.

Further, the support comprises a supporting portion and a connecting portion which are connected with each other, the sliding block is connected with the connecting portion, and the first magnetic piece is arranged on the supporting portion and/or the connecting portion.

Further, the supporting part includes first backup pad and second backup pad, and first backup pad and second backup pad interval set up, and connecting portion include the connecting plate, and the one end and the first backup pad of connecting plate are connected, and the other end and the second backup pad of connecting plate are connected.

Furthermore, the sliding block is provided with a concave port which is arranged corresponding to the valve ports, the sliding block is used for covering two adjacent valve ports, the connecting part is provided with a limiting hole, and at least part of the sliding block penetrates through the limiting hole and is connected with the connecting part.

The four-way reversing valve further comprises a valve seat, the valve seat is located at one end of the valve body, the plurality of valve ports comprise a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port, the second valve port and the third valve port are sequentially arranged on the valve seat, the fourth valve port is located at the other end of the valve body, the sliding block covers the valve seat, and the sliding block is used for controlling the communication condition of the first valve port, the third valve port and the second valve port.

Furthermore, the four-way reversing valve also comprises a second magnetic part, the second magnetic part is arranged on the outer side of the valve body, and the first magnetic part and the second magnetic part are matched with each other to drive the valve core assembly to move relative to the valve body.

Furthermore, the four-way reversing valve also comprises an electromagnetic pilot valve assembly, and the electromagnetic pilot valve assembly is in driving connection with the valve core assembly so as to drive the valve core assembly to move relative to the valve body.

Further, the first magnetic member includes a permanent magnet.

Further, an adhesive is arranged between the first magnetic part and the valve core assembly.

Use the technical scheme of the utility model, this four-way reversing valve includes valve body, case subassembly and first magnetism spare. The valve body is provided with a plurality of valve ports, and the valve core assembly is movably arranged in the valve body. By moving the valve core assembly from between the two ends of the valve body, the valve core assembly can be utilized to control the communication between the multiple valve ports. When the valve core assembly stays at the middle position of the plurality of valve ports for a long time, and the valve core assembly fails and cannot move, the first magnetic part is located in the valve body and arranged on the valve core assembly, and the valve core assembly can be driven to move relative to the valve body by matching the maintenance magnetic part and the first magnetic part outside the valve body, so that the valve core assembly leaves the middle position of the plurality of valve ports, and the air conditioner can normally work. By adopting the structure, when the four-way reversing valve breaks down, the four-way reversing valve does not need to be replaced, the maintenance is convenient, and the four-way reversing valve has the advantage of low maintenance cost.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram illustrating a slider of a four-way reversing valve in a middle position of a valve seat according to an embodiment of the present invention;

fig. 2 shows a schematic view of the slider being moved to the left using a second magnetic member.

Wherein the figures include the following reference numerals:

10. a valve body; 11. a fourth valve port;

20. a valve core assembly; 21. a support; 211. a support portion; 211a, a first support plate; 211b, a second support plate; 212. a connecting portion; 22. a slider; 221. a concave port;

30. a first magnetic member;

40. a valve seat; 41. a first valve port; 42. a second valve port; 43. a third valve port;

50. a second magnetic member;

60. an electromagnetic pilot valve assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, an embodiment of the present invention provides a four-way reversing valve, which includes a valve body 10, a valve core assembly 20, and a first magnetic member 30. The valve body 10 has a plurality of valve ports, the valve core assembly 20 is movably disposed in the valve body 10, and the valve core assembly 20 can be moved between two ends of the valve body 10 to control the communication between the valve ports, so as to switch the operating mode of the air conditioner. Specifically, the air conditioner includes two working modes, i.e., a cooling mode and a heating mode, when the valve core assembly 20 is located at one end of the valve body 10, the air conditioner is in the cooling mode, and when the air conditioner is located at the other end of the valve body 10, the air conditioner is in the heating mode. In the present embodiment, the first magnetic member 30 is located in the valve body 10, and the first magnetic member 30 is disposed on the valve core assembly 20. When the four-way reversing valve fails, the maintenance magnetic part on the outer side of the valve body 10 can be matched with the first magnetic part 30, so that the valve core assembly 20 moves relative to the valve body 10.

By applying the four-way reversing valve provided by the embodiment, when the valve core assembly 20 stays at the middle position of the plurality of valve ports for a long time, and the valve core assembly 20 fails and cannot move, because the first magnetic part 30 is located in the valve body 10 and is arranged on the valve core assembly 20, the valve core assembly 20 can be driven to move relative to the valve body 10 by matching the maintenance magnetic part with the first magnetic part 30 outside the valve body 10, so that the valve core assembly 20 leaves the middle position of the plurality of valve ports, and the four-way reversing valve is smoothly reversed, and an air conditioner can normally work. By adopting the structure, when the four-way reversing valve breaks down, the four-way reversing valve does not need to be replaced, and the maintenance of the four-way reversing valve can be completed only by matching the maintenance magnetic part with the first magnetic part 30 arranged in the valve body 10, so that the four-way reversing valve has the advantages of convenience in maintenance and low maintenance cost.

In the present embodiment, the spool assembly 20 includes a bracket 21 and a slider 22. Wherein, the support 21 is movably arranged in the valve body 10, the slide block 22 is connected with the support 21, and the slide block 22 can be supported by the support 21. Specifically, the slider 22 is disposed corresponding to the valve ports, and the slider 22 slides in the valve body 10, so that the communication state of the plurality of valve ports can be controlled by the slider 22. And, the first magnetic member 30 is provided on the bracket 21 and/or the slider 22. In the present embodiment, the first magnetic member 30 is provided on the bracket 21. In other embodiments, in order to increase the chance of successful engagement of the external maintenance magnet with the internal first magnet 30, the first magnet 30 may be provided on both the bracket 21 and the slider 22.

The bracket 21 includes a supporting portion 211 and a connecting portion 212 connected to each other, the slider 22 is connected to the connecting portion 212, the supporting portion 211 is used for supporting the slider 22, and the connecting portion 212 is used for connecting the supporting portion 211 to the slider 22. Wherein, the first magnetic member 30 is disposed on the supporting portion 211 and/or the connecting portion 212. In this embodiment, the first magnetic member 30 is disposed on the connection portion 212, and since the extending direction of the connection portion 212 is the same as the axial direction of the valve body 10, when the maintenance magnetic member is required to be matched with the first magnetic member 30, after the maintenance magnetic member is successfully adsorbed to the first magnetic member 30, the maintenance magnetic member is pushed along the sidewall of the valve body 10, that is, the first magnetic member 30 can be used to drive the valve core assembly 20 to move, which has the advantage of being convenient for operation. In other embodiments, the first magnetic member 30 may be disposed at the supporting portion 211. Specifically, the first magnetic member 30 may be disposed on a side of the supporting portion 211 close to the end of the valve body 10, so that the maintenance magnetic member is successfully engaged with the first magnetic member 30.

Specifically, the supporting portion 211 includes a first supporting plate 211a and a second supporting plate 211b, the first supporting plate 211a and the second supporting plate 211b are spaced apart from each other, the connecting portion 212 includes a connecting plate, one end of the connecting plate is connected to the first supporting plate 211a, and the other end of the connecting plate is connected to the second supporting plate 211 b. In this embodiment, the valve body 10 has a cylindrical structure, the first support plate 211a and the second support plate 211b have a circular plate structure, and the connecting plate has a flat plate structure. By arranging the first magnetic member 30 on the connecting plate, the first magnetic member 30 is conveniently fixed, and the first magnetic member 30 is prevented from being displaced relative to the valve core assembly 20.

In the present embodiment, the slider 22 has a concave port 221, the concave port 221 is disposed corresponding to the valve port, and the slider 22 is used for covering two adjacent valve ports. The slider 22 can be covered on different valve ports by moving the slider 22 relative to the valve body 10, so that the four-way reversing valve can be reversed, and the working modes of the air conditioner can be switched. Wherein, be provided with spacing hole on the connecting portion 212, at least partial slider 22 wears to establish in spacing hole and is connected with connecting portion 212 to utilize spacing hole to carry out spacingly to slider 22, avoid slider 22 to take place the displacement relative connecting portion 212. Specifically, the slider 22 is a semicircular structure, the limiting hole on the connecting portion 212 is a circular hole, and the top of the slider 22 is inserted into the circular hole and connected with the connecting portion 212.

The four-way reversing valve further comprises a valve seat 40, the valve seat 40 is located at one end of the valve body 10, and the plurality of valve ports comprise a first valve port 41, a second valve port 42, a third valve port 43 and a fourth valve port 11. Specifically, the first port 41, the second port 42, and the third port 43 are sequentially disposed on the valve seat 40, and the fourth port 11 is located at the other end of the valve body 10. By covering the valve seat 40 with the slider 22 and moving the slider 22 on the valve seat 40, the slider 22 can control the communication between the first port 41 and the third port 43 and the second port 42. Specifically, when the slider 22 covers the first valve port 41 and the second valve port 42, the fourth valve port 11 is communicated with the third valve port 43, the first valve port 41 is communicated with the second valve port 42, and the working mode of the air conditioner is one of a cooling mode and a heating mode; when the slider 22 covers the third valve port 43 and the second valve port 42, the fourth valve port 11 is communicated with the first valve port 41, and the third valve port 43 is communicated with the second valve port 42, and the working mode of the air conditioner is the other one of the cooling mode and the heating mode.

In this embodiment, the four-way selector valve further includes a second magnetic member 50, and the second magnetic member 50 is disposed outside the valve body 10. When the valve core assembly 20 of the four-way reversing valve is located in the middle of the valve seat 40 and cannot move smoothly, the valve core assembly 20 can be driven to move relative to the valve body 10 through the matching of the first magnetic part 30 and the second magnetic part 50, so that the four-way reversing valve can be smoothly reversed, and the working modes of the air conditioner can be smoothly switched.

The four-way reversing valve further comprises an electromagnetic pilot valve assembly 60, and the electromagnetic pilot valve assembly 60 is in driving connection with the valve core assembly 20 so as to drive the valve core assembly 20 to move relative to the valve body 10. Specifically, the four-way reversing valve further includes a spring, the spring is disposed between one end of the valve core assembly 20 and the valve body 10, and the first magnetic member 30 is located at the other end of the valve core assembly 20. In this embodiment, the spring is located on the right side of the valve core assembly 20.

When the electromagnetic pilot valve assembly 60 is in a power-off state, the valve core assembly 20 is driven by the spring on the right side to move left, at this time, high-pressure gas enters the piston cavity at the right end of the valve body 10 through the fourth valve port 11, on the other hand, gas in the piston cavity at the left end is discharged, because of pressure difference existing at two ends of the valve core assembly 20, the valve core assembly 20 moves left, so that the exhaust pipe is communicated with the outdoor unit connecting pipe through the third valve port 43, and the other two connecting pipes are communicated with the second valve port 42 through the first valve port 41, so that a refrigeration cycle is formed; when the electromagnetic pilot valve assembly 60 is in the power-on state, the valve core assembly 20 overcomes the elastic force of the spring and moves to the right under the action of the magnetic force generated by the electromagnetic pilot valve assembly 60, high-pressure gas enters the piston cavity at the left end of the valve body 10 through the fourth valve port 11, on the other hand, gas in the piston cavity at the right end is discharged, and due to the pressure difference between the two ends of the valve core assembly 20, the valve core assembly 20 moves to the right, so that the exhaust pipe is communicated with the outdoor machine connecting pipe through the first valve port 41, and the other two connecting pipes are communicated with the second valve port 42 through the third valve port 43, thereby forming.

Specifically, as shown in fig. 1 and 2, the solenoid pilot valve assembly 60 communicates with the four-way reversing valve via four lines. The working principle of the electromagnetic pilot valve assembly 60 is the same as that of the four-way reversing valve, the driving force of the electromagnetic pilot valve assembly 60 is electromagnetic force, and the electromagnetic force can drive the valve core assembly in the electromagnetic pilot valve assembly 60 to move so as to control the pressure conditions of three pipelines at the lower end of the electromagnetic pilot valve assembly 60, so that the pressure conditions of a left-end piston cavity and a right-end piston cavity of the four-way reversing valve, which are communicated with the electromagnetic pilot valve assembly 60, are controlled, and the reversing of the four-way reversing valve is realized.

In the embodiment, the first magnetic member 30 includes a permanent magnet, so that the first magnetic member 30 can be used normally after a long time, and can be maintained under the condition that the four-way reversing valve fails to reverse. Also, the second magnetic member 50 includes a permanent magnet.

In order to ensure the connection stability of the first magnetic member 30 and the valve core assembly 20, an adhesive is provided between the first magnetic member 30 and the valve core assembly 20. Wherein, the adhesive comprises glue water and double-sided adhesive.

Through the device provided by the embodiment, when the slider 22 of the four-way reversing valve is located at the middle position of the valve seat 40 and cannot move smoothly, the second magnetic part 50 outside the valve body 10 is moved slowly corresponding to the position of the first magnetic part 30 inside the four-way reversing valve, and the second magnetic part 50 is used for driving the first magnetic part 30 inside the four-way reversing valve to move, so that the first magnetic part 30 drives the valve core assembly 20 to move. By adopting the structure, when the sliding block 22 of the four-way reversing valve is positioned in the middle position of the valve seat 40, the reversing is failed and the air conditioner cannot be used, the four-way reversing valve does not need to be disassembled, the refrigerant in a refrigeration pipeline does not need to be discharged, the workload of maintenance personnel can be reduced, the sliding block 22 can be easily moved by virtue of an external magnet, the maintenance cost can be reduced, and the maintenance is convenient.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A four-way reversing valve, comprising:

a valve body (10) having a plurality of valve ports;

the valve core assembly (20) is movably arranged in the valve body (10), and the valve core assembly (20) is used for controlling communication among a plurality of valve ports;

the first magnetic piece (30) is positioned in the valve body (10) and is arranged on the valve core assembly (20).

2. The four-way reversing valve according to claim 1, wherein the spool assembly (20) comprises:

a support (21) movably disposed within the valve body (10);

the sliding block (22) is connected with the bracket (21), the sliding block (22) is arranged corresponding to the valve ports, the sliding block (22) is used for controlling the communication state of the valve ports, and the first magnetic part (30) is arranged on the bracket (21) and/or the sliding block (22).

3. The four-way reversing valve according to claim 2, wherein the bracket (21) comprises a support portion (211) and a connecting portion (212) connected to each other, the slider (22) is connected to the connecting portion (212), and the first magnetic member (30) is provided on the support portion (211) and/or the connecting portion (212).

4. The four-way reversing valve according to claim 3, wherein the supporting portion (211) comprises a first supporting plate (211a) and a second supporting plate (211b), the first supporting plate (211a) and the second supporting plate (211b) are spaced apart from each other, and the connecting portion (212) comprises a connecting plate, one end of which is connected to the first supporting plate (211a), and the other end of which is connected to the second supporting plate (211 b).

5. The four-way reversing valve according to claim 3, wherein the sliding block (22) is provided with a concave opening (221), the concave opening (221) is arranged corresponding to the valve ports, the sliding block (22) is used for covering two adjacent valve ports, the connecting portion (212) is provided with a limiting hole, and at least part of the sliding block (22) penetrates through the limiting hole and is connected with the connecting portion (212).

6. The four-way reversing valve according to claim 2, further comprising a valve seat (40), wherein the valve seat (40) is located at one end of the valve body (10), the plurality of valve ports comprise a first valve port (41), a second valve port (42), a third valve port (43) and a fourth valve port (11), the first valve port (41), the second valve port (42) and the third valve port (43) are sequentially arranged on the valve seat (40), the fourth valve port (11) is located at the other end of the valve body (10), the sliding block (22) is covered on the valve seat (40), and the sliding block (22) is used for controlling the communication between the first valve port (41) and the third valve port (43) and the second valve port (42).

7. The four-way reversing valve according to claim 1, further comprising a second magnetic member (50), wherein the second magnetic member (50) is disposed outside the valve body (10), and wherein the first magnetic member (30) and the second magnetic member (50) cooperate to drive the valve core assembly (20) to move relative to the valve body (10).

8. The four-way reversing valve according to claim 1, further comprising a solenoid pilot valve assembly (60), wherein the solenoid pilot valve assembly (60) is in driving connection with the valve core assembly (20) to drive the valve core assembly (20) to move relative to the valve body (10).

9. The four-way reversing valve according to claim 1, wherein the first magnetic member (30) comprises a permanent magnet.

10. The four-way reversing valve according to claim 1, wherein an adhesive is provided between the first magnetic member (30) and the spool assembly (20).