CN222836331U

CN222836331U - Reversing valve

Info

Publication number: CN222836331U
Application number: CN202421993143.2U
Authority: CN
Inventors: 俞德富; 罗高成; 朱恒新
Original assignee: Zhejiang Dunan Machinery Co Ltd
Current assignee: Zhejiang Dunan Machinery Co Ltd
Priority date: 2024-08-15
Filing date: 2024-08-15
Publication date: 2025-05-06
Anticipated expiration: 2034-08-15

Abstract

The application relates to the technical field of reversing valves, in particular to a reversing valve. The reversing valve comprises a main valve and a pilot valve, the main valve and the pilot valve are arranged at intervals along a first preset direction, a plane which is perpendicular to the first preset direction and passes through the axis of the pilot valve is defined as a first reference plane, and a plane which is perpendicular to the first preset direction and passes through the axis of the main valve is defined as a second reference plane. The reversing valve further comprises a connecting support, the connecting support is of an integrated structure, two ends of the connecting support are respectively connected with the main valve and the pilot valve along a first preset direction, one end, far away from the main valve, of the connecting support does not exceed a first reference surface, and one end, far away from the pilot valve, of the connecting support does not exceed a second reference surface. The reversing valve provided by the application solves the problems of high cost and poor shock resistance of a bracket structure for connecting a main valve and a pilot valve in the existing reversing valve.

Description

Reversing valve

Technical Field

The application relates to the technical field of reversing valves, in particular to a reversing valve.

Background

The reversing valve is an important part in the air conditioning system and comprises a main valve and a pilot valve, and in order to ensure the connection stability between the main valve and the pilot valve, the main valve and the pilot valve are usually connected through a bracket, and then the whole is assembled into the air conditioning system.

In the related art, the bracket generally includes a plurality of parts, which are fixedly connected to the main valve and the pilot valve by welding or the like after being connected to the main valve and the pilot valve, and which often extend to the junction of the pilot valve and the capillary tube or the junction of the main valve and the adapter tube. The support structure is complex, so that the cost is improved, a plurality of connecting fixed points exist among all parts of the support, looseness is easy to generate under a vibration working condition, and the reliability of connection of the main valve and the pilot valve is reduced.

Disclosure of utility model

Based on this, it is necessary to provide a reversing valve to solve the problems of high cost and poor shock resistance of the bracket structure connecting the main valve and the pilot valve in the existing reversing valve.

The application provides a reversing valve which comprises a main valve and a pilot valve, wherein the main valve and the pilot valve are arranged at intervals along a first preset direction, a plane which is perpendicular to the first preset direction and passes through the axis of the pilot valve is defined as a first reference plane, a plane which is perpendicular to the first preset direction and passes through the axis of the main valve is defined as a second reference plane, the reversing valve further comprises a connecting support, the connecting support is of an integrated structure, two ends of the connecting support are respectively connected with the main valve and the pilot valve along the first preset direction, one end of the connecting support, which is far away from the main valve, does not exceed the first reference plane, and one end of the connecting support, which is far away from the pilot valve, does not exceed the second reference plane.

In one embodiment, the connecting bracket comprises a first fixing portion, a second fixing portion and a supporting portion, wherein the supporting portion is located between the first fixing portion and the second fixing portion, the first fixing portion is arranged on the outer surface of the pilot valve in a fitting mode, and the second fixing portion is arranged on the outer surface of the main valve in a fitting mode.

In one embodiment, the first fixed portion and the pilot valve are welded together, and the second fixed portion and the main valve are welded together.

In one embodiment, the first fixing portion is provided with a first welding hole, and/or the second fixing portion is provided with a second welding hole.

In one embodiment, the axes of the main valve and the pilot valve are arranged in parallel, and a plane defining the main valve axis and the pilot valve axis is a third reference plane, wherein the first fixing portion is symmetrically arranged along the third reference plane, and/or the second fixing portion is symmetrically arranged along the third reference plane.

In one embodiment, the number of the supporting parts is at least one, and the supporting parts are arranged on one side of the first fixing part and one side of the second fixing part along a second preset direction, wherein the second preset direction is parallel to the axial direction of the main valve or the pilot valve.

In one embodiment, the number of the supporting parts is two, and the two supporting parts are respectively arranged at two sides of the first fixing part and the second fixing part along a third preset direction, wherein the third preset direction is perpendicular to the first preset direction and the axial direction of the main valve.

In one embodiment, the support portion is provided with a lightening hole.

In one embodiment, the support is configured as a straight plate.

In one embodiment, the support portion and the first fixing portion are in smooth transition connection, and/or the support portion and the second fixing portion are in smooth transition connection.

Compared with the related art, the reversing valve provided by the application has the advantages that the original parts of the connecting support are optimized into an integrated structure, the structure is simple, the processing is convenient, and the number of connecting points for mutually connecting the parts of the connecting support is obviously reduced, so that the structural strength and the connecting stability of the connecting support can be effectively improved, the breakage and failure of the parts of the connecting support at the connecting points under the long-term vibration working condition are avoided, the anti-vibration performance of the reversing valve can be effectively improved, and the reliable connection between the main valve and the pilot valve is realized. And, because both ends of linking bridge all are located between first reference surface and the second reference surface, the area that linking bridge extends is less, need not to set up corresponding cooperation structure to the fixed of structures such as capillary or takeover to further simplify linking bridge's structure, greatly reduced linking bridge's cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of a reversing valve according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a connecting bracket according to an embodiment of the present application;

fig. 3 is a schematic structural view of a connection bracket according to another embodiment of the present application;

Fig. 4 is a schematic structural view of a connection bracket according to another embodiment of the present application;

fig. 5 is a schematic structural diagram of a connection bracket according to another embodiment of the present application.

The symbols in the drawings are as follows:

100. the valve comprises a reversing valve body, 10 parts of a main valve, 11 parts of a connecting pipe, 20 parts of a pilot valve, 21 parts of a capillary pipe, 30 parts of a connecting bracket, 301a parts of a first welding hole, 301b parts of a second welding hole, 302 parts of a lightening hole, 31 parts of a first fixing part, 32 parts of a second fixing part, 33 parts of a supporting part.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present application for the purpose of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in the description of the present application includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-5, in order to solve the problems of high cost and poor shock resistance of a bracket structure connecting a main valve and a pilot valve in the conventional reversing valve, the present application provides a reversing valve 100. The reversing valve 100 includes a main valve 10 and a pilot valve 20, wherein the main valve 10 and the pilot valve 20 are arranged at intervals along a first preset direction, a plane perpendicular to the first preset direction and passing through the axis of the pilot valve 20 is defined as a first reference plane, and a plane perpendicular to the first preset direction and passing through the axis of the main valve 10 is defined as a second reference plane. The reversing valve 100 further includes a connecting bracket 30, the connecting bracket 30 is in an integral structure, two ends of the connecting bracket 30 are respectively connected with the main valve 10 and the pilot valve 20 along a first preset direction, one end of the connecting bracket 30 away from the main valve 10 does not exceed a first reference surface, and one end of the connecting bracket 30 away from the pilot valve 20 does not exceed a second reference surface.

It should be noted that, to ensure the reliability of the connection between the capillary tube 21 and the adapter tube 11, the capillary tube 21 is usually connected to the pilot valve 20 at a corresponding position on the first reference surface, and the adapter tube 11 is connected to the main valve 10 at a corresponding position on the second reference surface.

It can be appreciated that the connecting bracket 30 is optimized into an integral structure from a plurality of original parts, so that the structure is simple, the processing is convenient, and the number of connecting points for connecting the parts on the connecting bracket 30 is obviously reduced, thereby effectively improving the structural strength and the connecting stability of the connecting bracket 30, avoiding the breakage and failure of the parts of the connecting bracket 30 at the connecting points under the long-term vibration working condition, effectively improving the shock resistance of the reversing valve 100, and realizing the reliable connection between the main valve 10 and the pilot valve 20. In addition, as the two ends of the connecting bracket 30 are positioned between the first reference surface and the second reference surface, the extending area of the connecting bracket 30 is smaller, and corresponding matching structures do not need to be arranged for fixing the structures such as the capillary tube 21 or the connecting pipe 11, thereby further simplifying the structure of the connecting bracket 30 and greatly reducing the cost of the connecting bracket 30.

For convenience of explanation, the present application defines a first preset direction (denoted by z) as shown in fig. 1, and a second preset direction (denoted by x) and a third preset direction (denoted by y) described below.

In one embodiment, as shown in fig. 2-5, the connecting bracket 30 includes a first fixing portion 31, a second fixing portion 32, and a supporting portion 33, and the supporting portion 33 is located between the first fixing portion 31 and the second fixing portion 32. The first fixing portion 31 is provided on the outer surface of the pilot valve 20 in a fitting manner, and the second fixing portion 32 is provided on the outer surface of the main valve 10 in a fitting manner.

That is, the first fixing portion 31 and the second fixing portion 32 are arc-shaped plate structures adapted to the surface of the main valve 10 or the pilot valve 20, so that the contact area between the connecting bracket 30 and the main valve 10 and the pilot valve 20 can be effectively increased, and the connection strength is improved.

Further, in an embodiment, the first fixing portion 31 and the pilot valve 20 are welded and fixed, so as to further improve the connection strength between the first fixing portion 31 and the pilot valve 20. The first fixing portion 31 and the pilot valve 20 may be formed by welding such as laser welding or furnace welding.

In order to facilitate the welding between the first fixing portion 31 and the pilot valve 20, in an embodiment, as shown in fig. 3 and 4, a first welding hole 301a is formed in the first fixing portion 31, and solder can be placed in the first welding hole 301a, so that the solder can better infiltrate into each position on the contact surface between the first fixing portion 31 and the pilot valve 20 after melting, and the welding quality of welding fixation is improved.

In one embodiment, the second fixing portion 32 and the main valve 10 are welded and fixed to further improve the connection strength between the second fixing portion 32 and the main valve 10. The second fixing portion 32 and the main valve 10 may be formed by welding such as laser welding or furnace welding.

In order to facilitate the welding between the second fixing portion 32 and the main valve 10, in an embodiment, as shown in fig. 3 and 4, a second welding hole 301b is formed on the second fixing portion 32, and similarly, solder can be placed in the second welding hole 301b, and after the solder melts, the solder can better infiltrate into each place on the contact surface between the second fixing portion 32 and the main valve 10, so as to improve the welding quality of welding fixation.

In summary, by forming the welding hole in the first fixing portion 31 and/or the second fixing portion 32, the welding reliability between the connection bracket 30 and the main valve 10 and the pilot valve 20 can be improved. Of course, as shown in fig. 2 and 5, the first fixing portion 31 and the second fixing portion 32 may not be provided with welding holes, so long as stable connection between the connection bracket 30 and the main valve 10 and the pilot valve 20 can be achieved.

The number of the first welding holes 301a on the first fixing portion 31 and the number of the second welding holes 301b on the second fixing portion 32 may be set reasonably according to actual needs, for example, one first welding hole 301a may be formed on the first fixing portion 31, one second welding hole 301b may be formed on the second fixing portion 32, or one first welding hole 301a may be formed on the first fixing portion 31, two second welding holes 301b may be formed on the second fixing portion 32, and the like, which are not specifically illustrated herein.

In other embodiments, the first fixing portion 31 and the pilot valve 20, and the second fixing portion 32 and the main valve 10 may be fixedly connected by screwing or clamping.

In general, in order to improve the space utilization of the reversing valve 100, the relative positions of the main valve 10 and the pilot valve 20 need to be arranged such that the axes of the main valve 10 and the pilot valve 20 are parallel, and a plane defining the axes of the main valve 10 and the pilot valve 20 is a third reference plane. The first fixing portion 31 is symmetrically disposed along the third reference plane, so that the force applied to the pilot valve 20 is more uniform, and the stability of the connection between the first fixing portion 31 and the pilot valve 20 can be further improved.

In another embodiment, the second fixing portion 32 is symmetrically disposed along the third reference plane, so that the main valve 10 is more uniformly stressed, and the stability of the connection between the second fixing portion 32 and the main valve 10 can be further improved.

In an embodiment, as shown in fig. 2 to 5, the supporting portion 33 is configured as a straight plate, so that the supporting portion 33 has a simple structure, is easy to process, and can achieve a supporting connection effect on the first fixing portion 31 and the second fixing portion 32.

Further, in an embodiment, the supporting portion 33 and the first fixing portion 31 are connected in a smooth transition manner, that is, the connection portion between the supporting portion 33 and the first fixing portion 31 may be transited through an arc surface, so that not only safety is improved, but also stress concentration at the connection portion can be reduced, and the probability of fracture is reduced.

Also, in an embodiment, the supporting portion 33 and the second fixing portion 32 are connected in a smooth transition manner, that is, the connection portion between the supporting portion 33 and the second fixing portion 32 can be transited through an arc surface, so that not only is the safety improved, but also the stress concentration at the connection portion can be reduced, and the probability of fracture is reduced.

In order to reduce the weight of the whole connecting bracket 30 and achieve light weight, in one embodiment, as shown in fig. 5, a lightening hole 302 may be formed in the supporting portion 33 on the basis of ensuring the structural strength of the supporting portion 33.

In one embodiment, as shown in fig. 2 and 3, the number of the supporting portions 33 is at least one, and the supporting portions 33 are disposed on one side of the first fixing portion 31 and the second fixing portion 32 along the second preset direction. Wherein the second preset direction is parallel to the axial direction of the main valve 10 or the pilot valve 20.

That is, in the present embodiment, the connection bracket 30 has a U-shaped structure as a whole. In this way, the connecting bracket 30 has a simple structure, and can reduce the cost.

In another embodiment, as shown in fig. 4 and 5, the number of the supporting portions 33 is two, and the two supporting portions 33 are respectively provided at both sides of the first fixing portion 31 and the second fixing portion 32 along the third preset direction. Wherein the third preset direction is perpendicular to the first preset direction and the axial direction of the main valve 10.

That is, in the present embodiment, the connection bracket 30 has a rectangular frame structure as a whole. In this way, the support effect of the connecting bracket 30 on the main valve 10 and the pilot valve 20 is more reliable, and the stability of the reversing valve 100 is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be determined from the following claims.

Claims

1. The reversing valve comprises a main valve (10) and a pilot valve (20), wherein the main valve (10) and the pilot valve (20) are arranged at intervals along a first preset direction, a plane which is perpendicular to the first preset direction and passes through the axis of the pilot valve (20) is defined as a first reference plane, and a plane which is perpendicular to the first preset direction and passes through the axis of the main valve (10) is defined as a second reference plane;

The reversing valve is characterized by further comprising a connecting support (30), wherein the connecting support (30) is of an integrated structure, the connecting support is arranged in the first preset direction, two ends of the connecting support (30) are respectively connected with the main valve (10) and the pilot valve (20), one end, far away from the main valve (10), of the connecting support (30) does not exceed the first reference surface, and one end, far away from the pilot valve (20), of the connecting support (30) does not exceed the second reference surface.

2. The reversing valve according to claim 1, wherein the connecting bracket (30) comprises a first fixing portion (31), a second fixing portion (32) and a supporting portion (33), the supporting portion (33) is located between the first fixing portion (31) and the second fixing portion (32), the first fixing portion (31) is attached to the outer surface of the pilot valve (20), and the second fixing portion (32) is attached to the outer surface of the main valve (10).

3. Reversing valve according to claim 2, characterized in that the first fixing part (31) and the pilot valve (20) are welded and fixed, and the second fixing part (32) and the main valve (10) are welded and fixed.

4. A reversing valve according to claim 3, characterized in that the first fixing portion (31) is provided with a first welding hole (301 a) and/or the second fixing portion (32) is provided with a second welding hole (301 b).

5. Reversing valve according to claim 2, characterized in that the axes of the main valve (10) and the pilot valve (20) are arranged in parallel and in that a plane defining the main valve (10) axis and the pilot valve (20) axis is a third reference plane;

Wherein the first fixing part (31) is symmetrically arranged along the third reference surface, and/or the second fixing part (32) is symmetrically arranged along the third reference surface.

6. The reversing valve according to claim 2, characterized in that the number of the supporting portions (33) is at least one, and the supporting portions (33) are provided on one side of the first fixing portion (31) and the second fixing portion (32) in a second preset direction;

wherein the second preset direction is parallel to the axial direction of the main valve (10) or the pilot valve (20).

7. The reversing valve according to claim 2, wherein the number of the supporting portions (33) is two, and the two supporting portions (33) are respectively provided on both sides of the first fixing portion (31) and the second fixing portion (32) in a third preset direction;

Wherein the third preset direction is perpendicular to the first preset direction and the axial direction of the main valve (10).

8. Reversing valve according to claim 2, characterized in that the support part (33) is provided with a lightening hole (302).

9. Reversing valve according to claim 2, characterized in that the support (33) is configured as a straight plate.

10. Reversing valve according to claim 2, characterized in that the support part (33) and the first fixing part (31) are connected in a smooth transition and/or that the support part (33) and the second fixing part (32) are connected in a smooth transition.