CN218094337U

CN218094337U - Guide frame assembly and four-way valve thereof

Info

Publication number: CN218094337U
Application number: CN202222281063.1U
Authority: CN
Inventors: 邵巨灿; 刘海波; 单宇宽
Original assignee: Zhejiang Dunan Artificial Environment Co Ltd
Current assignee: Zhejiang Dunan Artificial Environment Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-12-20
Anticipated expiration: 2032-08-26

Abstract

The application provides a leading truck subassembly and cross valve thereof relates to valve switching-over control technical field. A guide frame component is used for being connected with a piston component and comprises a guide frame main body and a connecting plate; the two ends of the guide frame main body along the length direction of the guide frame main body are vertically connected with connecting plates; the connecting plate is provided with a connecting hole and is connected with the piston assembly through the connecting hole; wherein, be formed with the first plane along the length direction of leading truck main part, and the leading truck main part has the central axis along self length direction extension, and the central axis is located the first plane, and the axis of connecting hole is located the first plane. The central axis of the connecting hole and the central axis of the guide frame are axially arranged in the same plane, so that when the connecting plate is stressed at the connecting hole, bending moment formed by the guide frame is avoided, the trend of bending deformation of the guide frame is avoided to a great extent, and the connection between the guide frame and the connecting plate is more stable.

Description

Guide frame assembly and four-way valve thereof

Technical Field

The utility model belongs to the technical field of the valve switching-over control is relevant, especially relate to a leading truck subassembly and cross valve thereof.

Background

The four-way valve is an indispensable component in refrigeration equipment, can realize the flow direction conversion of refrigeration, and is widely applied to a turning conversion system of a refrigerant in an air conditioner. The guide frame is an important component in the four-way valve, and the guide frame is applied to a valve body of the four-way valve and can drive a piston unit fixedly connected to the guide frame to move back and forth relative to the valve body, so that the reversing function of the four-way valve is realized.

A guide frame and a connecting plate in an existing four-way valve are bending pieces, connecting holes are formed in the bending portions, and the guide frame assembly is connected with a piston assembly, so that when the guide frame assembly drives the piston assembly to move, the guide frame is prone to bending deformation, and stability of the guide frame assembly is not facilitated.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a guide frame assembly and a four-way valve thereof that are not easily bent and deformed and are stably connected.

A guide frame component is used for being connected with a piston component and is characterized by comprising a guide frame main body and a connecting plate; the two ends of the guide frame main body along the length direction of the guide frame main body are vertically connected with the connecting plates; the connecting plate is provided with a connecting hole, and the connecting plate is connected with the piston assembly through the connecting hole; the guide frame body is provided with a central axis extending along the length direction of the guide frame body, the central axis is located in the first plane, and the axis of the connecting hole is located in the first plane.

It can be understood that the central axis of the connecting hole and the central axis of the guide frame main body are arranged in the same horizontal plane, so that when the connecting plate is stressed at the connecting hole, the bending moment formed on the guide frame main body is eliminated, the guide frame main body is prevented from having the tendency of bending deformation to a great extent, and the connection between the guide frame main body and the connecting plate is more stable.

In one embodiment, the connecting plates have connecting arms along two sides of the thickness direction of the guide frame main body, and each connecting arm is convexly arranged on the guide frame main body along the thickness direction of the guide frame; the two connecting arms are symmetrically arranged relative to the first plane.

It will be appreciated that by providing the connecting arm on the connecting plate, the guide frame assembly is facilitated to cooperate with the piston assembly in the four-way valve.

In one embodiment, the connecting plate is arranged in a flat plate structure.

It can be understood that the connecting plate is arranged to be a flat plate structure, so that holes can be conveniently formed in the connecting plate, and the flat plate structure is provided with a flat plane, so that the flat plate structure is favorably aligned and attached with the end face of the guide frame main body to be welded and fixed.

In one embodiment, the number of the connecting holes is at least two, and the at least two connecting holes are arranged on the connecting plate at intervals along the width direction of the guide frame main body.

It can be appreciated that multiple fixing of the guide frame assembly and the piston assembly inside the four-way valve is facilitated by arranging the plurality of connecting holes at intervals along the width of the guide frame.

In one embodiment, at least two of the connecting holes are in a group of two connecting holes, and the two connecting holes in the group are symmetrically arranged relative to the central axis of the guide frame main body.

It can be understood that, through arranging two connecting holes symmetrically relative to the central axis of the guide frame main body, when the guide frame assembly is connected with the piston assembly through the connecting plate in an installing mode, the stress is more uniform, and stable fixing is promoted.

In one embodiment, the guide frame main body is provided with a bulge protruding along the length direction of the guide frame main body, the connecting plate is provided with a mounting hole extending along the length direction of the guide frame main body, and the bulge is inserted into the mounting hole; the connecting hole is avoided to open the assembling hole.

It can be understood that the guide frame main body is provided with the bulge, the connecting plate is provided with the assembly hole, and the guide frame main body and the connecting plate are matched in positioning through the bulge and the assembly hole.

In one embodiment, the assembly holes are elongated holes; the leading truck main part all is "protruding" font setting along self length direction's both ends.

It can be understood that the protrusion in the shape of the 'convex' is matched with the elongated hole, so that the positioning of the guide frame main body and the connecting plate is further stabilized and promoted.

In one embodiment, the connecting plate is welded and fixed with the guide frame main body.

It can be understood that the connection is reliable by fixedly welding the connecting plate with the guide frame main body.

In one embodiment, two ends of the guide frame main body along the length direction of the guide frame main body are provided with flat end faces, and one side of the connecting plate along the thickness direction of the connecting plate is in surface contact with and clings to the end faces.

It can be understood that the connecting plate is closely contacted with the end surface of the guide frame main body, so that no gap exists during welding, and the welding quality is ensured.

The application also provides a four-way valve, which comprises a piston assembly and the guide frame assembly, wherein the guide frame assembly is connected with the piston assembly through the connecting plate.

It can be understood that, by using the guide frame assembly, the bending moment is eliminated, the bending of the guide frame main body is avoided, and the stability of the connection of the guide frame assembly and the piston assembly can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of a guide assembly provided herein;

FIG. 2 is a side view of a guide assembly provided herein;

FIG. 3 is a top view of a guide assembly provided herein;

FIG. 4 is a perspective view of a guide assembly provided herein;

FIG. 5 is a schematic structural view of a connecting plate in a first version of the guide assembly provided herein;

FIG. 6 is a schematic structural view of a guide frame body in a first version of the guide assembly provided herein;

FIG. 7 is a schematic structural view of a connecting plate of a second version of the guide assembly provided herein;

fig. 8 is a schematic structural diagram of a guide frame main body in a second embodiment of the guide member assembly provided by the present application.

Reference numerals: 100. a guide frame assembly; 10. a guide frame main body; 20. a connecting plate; 11. a protrusion; 101. an end face; 21. connecting holes; 22. an assembly hole; 23. a connecting arm.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "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 as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

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

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature or that the first feature is in indirect contact with the second feature via an intermediate medium. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation 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 the present application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Among the prior art, the leading truck body both ends of cross valve are equipped with the portion of bending, and the portion of bending is buckled towards the direction of keeping away from the body along the central axis direction of perpendicular to body. And the bending part is provided with a connecting hole, and the connecting hole is used for being matched with the connecting plate to fixedly connect the guide frame and the piston assembly. When the piston assembly drives the slider to slide in the valve cavity through the guide frame, the connecting position of the connecting hole and the connecting plate can receive the force along the moving direction of the slider, a certain distance exists between the axis of the connecting hole and the central axis of the body in the direction perpendicular to the central axis of the body, and therefore when the connecting position of the connecting hole and the connecting plate receives the force along the sliding direction of the slider, a certain bending moment can be generated at the connecting position, so that the bending part is subjected to bending deformation relative to the body, and structural fracture can be caused when the connecting position is serious.

Specifically, the force is set to be F, when F acts on the center of the connecting hole along the moving direction of the slider, the distance from the center of the connecting hole to the central axis of the body is set to be L along the direction perpendicular to the axis of the body, and the bending moment applied to the connecting position of the connecting hole and the connecting plate is set to be M = F · L.

Referring to fig. 1 to 4, in view of the above problems, the present application provides a guide frame assembly 100 for connecting with a piston assembly, including a guide frame body 10 and a connecting plate 20; the guide frame main body 10 is vertically connected with connecting plates 20 at both ends along the length direction thereof; the connecting plate 20 is provided with a connecting hole 21, and the connecting plate 20 is connected with the piston assembly through the connecting hole 21; wherein, a first plane is formed along the length direction of the guide frame main body 10, and the guide frame main body 10 has a central axis extending along the length direction thereof, the central axis is located in the first plane, and the axis of the connection hole 21 is located in the first plane.

With the arrangement, by arranging the axis of the connecting hole 21 on the connecting plate 20 and the central axis of the guide frame main body 10 in the same horizontal plane, when the connecting plate 20 is stressed, the direction of the force is along the axis of the connecting hole 21, and since the vertical distance from the force F to the central axis of the guide frame main body 10 is L, at this time, L =0, the bending moment M = L · F =0. That is, the specific location of the connection hole 21 eliminates the bending moment formed on the guide frame main body 10, largely avoids the tendency of the guide frame main body 10 to bend and deform, and makes the connection between the guide frame main body 10 and the connection plate 20 more stable.

In the actual operation process, the guide frame main body 10 and the connecting plate 20 are firstly positioned and attached in advance, then the guide frame main body 10 and the connecting plate 20 are fixed through welding to form the guide frame assembly 100, and the guide frame assembly 100 is connected and matched with a piston assembly in the four-way valve through the connecting plate 20 to complete the installation of the guide frame assembly 100.

It should be noted that, in some embodiments, the guide frame body 10 further includes a reinforcement portion; the reinforcing portion is a bent structure along both sides of the guide frame body 10 in the width direction, and has a function of reinforcing the strength of the guide frame body 10.

The guide frame body 10 is formed by punching and bending after laser, plasma or electrospark wire-electrode cutting or blanking, or is processed by cold heading, hot forging and precision casting technology. The connection plate 20 is a flat plate structure and is formed by laser, plasma, blanking or wire cut electrical discharge machining. In the present embodiment, the guide frame body 10 and the connecting plate 20 are processed by laser cutting or plasma cutting. The laser cutting utilizes the laser beam with high power density to irradiate the plate, so that the material is quickly melted, and the laser cutting device has the advantages of good cutting quality and high cutting speed; the plasma cutting is a processing method for forming a cut on a plate by utilizing the heat of a high-temperature plasma arc and the momentum of high-speed plasma, and has the advantages of high cutting speed, smooth cutting surface, small thermal deformation and the like.

In the preferred embodiment, the connecting hole 21 is a through hole, and the connecting hole 21 is processed into a threaded hole by punching and tapping to facilitate the threaded connection of the connecting plate 20 with the piston assembly.

The number of the connection holes 21 is at least two, and the at least two connection holes 21 are provided at intervals in the connection plate 20 along the width direction of the guide frame body 10. So set up, connecting plate 20 is equipped with connecting hole 21 along leading truck main part 10 width direction interval, and connecting plate 20 is connected with piston assembly through a plurality of connecting holes 21, realizes the multiple fixed between connecting plate 20 and the piston assembly for it is more stable to connect.

As shown in fig. 2, in one embodiment, two connection holes 21 are grouped, and the two connection holes 21 in one group are symmetrically arranged with respect to the central axis of the guide frame body 10. Thus, the two connecting holes 21 are symmetrically arranged, so that the stress of the connecting plate 20 and the piston assembly during installation can be uniformly distributed, and the connection is more stable.

In other embodiments, three or four of the connecting holes 8230, 8230and one of the connecting holes 21 are provided in a group, and when the number of the connecting holes 21 is odd, the connecting holes 21 are uniformly spaced along the width direction of the guide frame body 10, and when the number of the connecting holes 21 is even, the connecting holes 21 are symmetrically distributed with respect to the central axis of the guide frame body 10 by halving.

As shown in fig. 1 to 8, the connection plate 20 is provided in a flat plate structure. The flat plate structure is convenient for punching to construct the connecting hole 21, so that the connecting plate 20 is convenient to be connected with the piston assembly through the connecting hole 21; and because the flat plate structure has a flat plane, the flat plate structure can be well aligned and attached to the end face of the guide frame main body 10, and the relative position shaking caused by the unevenness is avoided so as to facilitate welding and fixing.

As shown in fig. 1 and 4, the link plate 20 has link arms 23 on both sides in the thickness direction of the guide frame body 10, and each link arm 23 is provided to protrude from the guide frame body 10 in the thickness direction of the guide frame body 10; the two connecting arms 23 are symmetrically arranged with respect to the first plane.

In this way, by providing the connecting arm 23 on the connecting plate 20, when the guide frame assembly 100 is connected to the piston assembly, the connecting arm 23 can be used for further positioning and matching, so that the connection stability is enhanced. Wherein, when the connecting plate 20 is a complete strip plate, the thickness thereof is set according to actual needs. The blank area (the position without the connecting hole 21) along the width direction of the connecting plate 20 is the connecting arm 23, and the two sides of the connecting plate 20 along the length direction are both provided with arc-shaped edges so as to be in smooth fit with the valve seat wall.

The present application provides two solutions, which are specifically described below, for the welding connection structure of the connection plate 20 and the guide frame body 10.

As shown in fig. 5 and 6, in the first solution, the guide frame body 10 is provided with a protrusion 11 protruding along the length direction thereof, the connecting plate 20 is configured with an assembly hole 22 extending along the length direction of the guide frame body 10, and the protrusion is inserted into the assembly hole 22 and is in interference fit with the assembly hole 22 (in other embodiments, it may be in clearance fit or transition fit); the connecting hole 21 is disposed avoiding the fitting hole 22. So set up, through in inserting protruding 11 pilot hole 22 on the connecting plate 20, can realize the preliminary location of leading truck main part 10 and connecting plate 20, make the two position relatively fixed, weld again, make among the welding process leading truck main part 10 and connecting plate 20's relative position difficult emergence skew, promote welded connection's stability.

In a preferred embodiment, the fitting hole 22 is a long hole, and both ends of the guide frame body 10 along the length direction thereof are arranged in a shape of a letter "convex". So set up, because the rectangular hole has the edge, can make connecting plate 20 be difficult for taking place relative rotation, still increase area of contact, the arch of "protruding" font is inserted in the rectangular hole, does benefit to the stability of location between leading truck main part 10 and the connecting plate 20.

In the second embodiment, as shown in fig. 7 and 8, the guide frame body 10 has flat end surfaces 101 at both ends in the longitudinal direction thereof, and the connecting plate 20 is in surface contact with and in close contact with the end surfaces 101 at one side in the thickness direction thereof. With the arrangement, the straight end surface 101 is aligned with and closely attached to the connecting plate 20, so that a gap is reduced during welding; and, the straight terminal surface 101 is simple in construction, easy to produce and process.

The guide frame main body 10 and the connecting plate 20 are welded together by laser welding, argon arc welding or cold welding. The welding connection has stronger connection stability. Besides, only two welding seams need to be welded between the guide frame main body 10 and the connecting plate 20, a plurality of welding spots are not needed, and welding is convenient and fast. Because the connecting plate 20 is of a flat plate structure, the connecting plate 20 is aligned and attached to the end face 101 of the guide frame main body 10, a gap between the connecting plate 20 and the guide frame main body 10 is small, the size of the gap is consistent, and welding plumpness is uniform during welding.

The application also provides a four-way valve, which comprises a piston assembly and the guide frame assembly 100, wherein the guide frame assembly 100 is connected with the piston assembly through a connecting plate 20. By using the guide frame assembly 100, because the central axis of the connecting hole 21 on the connecting plate 20 is positioned on the same horizontal plane as the central axis of the guide frame main body 10, and the force applied to the connecting hole 21 during installation is along the axis of the connecting hole 21 and is also positioned on the same horizontal plane as the central axis of the guide frame main body 10, the force does not cause bending moment on the guide frame main body 10, thereby avoiding the tendency of bending deformation of the guide frame main body 10 to a great extent, improving the stability of the connection of the guide frame assembly 100 and the piston assembly, prolonging the service life of the guide frame main body 10 and improving the service performance of the four-way valve.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A guide frame component is used for being connected with a piston component and is characterized by comprising a guide frame main body and a connecting plate;

the two ends of the guide frame main body along the length direction of the guide frame main body are vertically connected with the connecting plates;

the connecting plate is provided with a connecting hole, and the connecting plate is connected with the piston assembly through the connecting hole;

the guide frame comprises a guide frame main body and a connecting hole, wherein a first plane is formed along the length direction of the guide frame main body, the guide frame main body is provided with a central axis extending along the length direction of the guide frame main body, the central axis is located in the first plane, and the axis of the connecting hole is located in the first plane.

2. The guide frame assembly of claim 1, wherein the connecting plate has connecting arms along both sides of the guide frame body in the thickness direction, and each connecting arm is protruded from the guide frame body in the thickness direction;

the two connecting arms are symmetrically arranged relative to the first plane.

3. A guide frame assembly according to claim 1 or claim 2, wherein the web is provided in a flat plate configuration.

4. The truck assembly of claim 1, wherein the number of the connecting holes is at least two, and at least two of the connecting holes are provided at the connecting plate at intervals in a width direction of the truck main body.

5. The guide frame assembly of claim 4, wherein at least two of the attachment holes are grouped into two attachment holes, and the two attachment holes in a group are symmetrically disposed about a central axis of the guide frame body.

6. The guide frame assembly of claim 1, wherein the guide frame body is provided with a protrusion protruding along a length direction thereof, the connecting plate is configured with a fitting hole extending along the length direction of the guide frame body, and the protrusion is inserted into the fitting hole;

the connecting hole is avoided to open the assembling hole.

7. The guide frame assembly of claim 6, wherein the mounting aperture is a slot aperture;

the leading truck main part all is "protruding" font setting along self length direction's both ends.

8. The guide frame assembly of claim 1, wherein the connecting plate is welded to the guide frame body.

9. The guide frame assembly of claim 1, wherein the guide frame body is configured with flat end surfaces at both ends in the length direction thereof, and the connecting plate is in surface contact with and closely attached to the end surfaces at one side in the thickness direction thereof.

10. A four-way valve, comprising:

a piston assembly;

the guide frame assembly of any one of claims 1-9, said guide frame assembly being connected to said piston assembly.