CN217898963U

CN217898963U - Four-way valve

Info

Publication number: CN217898963U
Application number: CN202122384635.4U
Authority: CN
Inventors: 张飞; 丰帆
Original assignee: Zhejiang Dunan Artificial Environment Co Ltd
Current assignee: Zhejiang Dunan Artificial Environment Co Ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-11-25
Anticipated expiration: 2031-09-28

Abstract

The utility model provides a four-way valve, include: the valve body comprises a pipe body and an annular flange arranged on the side wall of the pipe body, a hole in the annular flange is an assembly hole, the assembly hole is communicated with the cavity of the pipe body, one end of the assembly hole, which is communicated with the cavity of the pipe body, is an inner end, the diameter of the inner end is D1, one end of the assembly hole, which is far away from the pipe body, is an outer end, and the diameter of the outer end is D3; one end of the D connecting pipe is inserted into the assembling hole, the inner diameter of the D connecting pipe is D2, the outer diameter of the D connecting pipe is D4, D2 is larger than D1 and smaller than D4, and D3-D4= 0.03-0.2 mm. Adopt this scheme, inject the numerical value size of the internal diameter D2 of taking over through the diameter D1 with the inner, D and the external diameter D4 of D taking over in foretell relation, can guarantee that D takes over and can insert the outer end of pilot hole smoothly to D takes over and can not pass in the inner entering body inner chamber of pilot hole, thereby avoids causing the influence to the flow of valve body.

Description

Four-way valve

Technical Field

The utility model relates to a cross valve technical field particularly, relates to a cross valve.

Background

In the heat pump type air conditioner, a four-way valve is a key component for switching the refrigerating cycle working condition and the heating cycle working condition of a system. The interconversion between refrigeration and heating is realized through the switching of the four-way valve. The four-way valve mainly comprises an electromagnetic coil, a pilot valve and a main valve, wherein the main valve is switched to switch the flowing direction of the refrigerating working medium under the combined action of the electromagnetic coil and the pilot valve, so that the interconversion between the refrigeration and the heating of the air conditioner is realized.

The main valve in the four-way valve is composed of a valve body, a connecting pipe, a piston part and other structures, wherein one end of the connecting pipe is communicated with the valve body, the other end of the connecting pipe is communicated with an external structure to realize the working performance of the four-way valve, and the mutual conversion between the refrigeration and the heating of the air conditioner is realized through the movement of the piston part. In the prior art, the connecting pipe comprises a D connecting pipe, an S connecting pipe, an E connecting pipe and a C connecting pipe, and the valve body is communicated with the D connecting pipe by adopting an assembling hole formed by a flanging process; when assembled, the assembly holes often do not define the insertion depth of the D-nipple, thereby affecting the circulation of the fluid within the valve body.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cross valve to solve the assembly hole among the prior art and can not inject D and take over depth of insertion, thereby influence the problem of valve body flow.

In order to solve the problem, the utility model provides a four-way valve, include: the valve body comprises a pipe body and an annular flange arranged on the side wall of the pipe body, a hole in the annular flange is an assembly hole, the assembly hole is communicated with the cavity of the pipe body, one end of the assembly hole, which is communicated with the cavity of the pipe body, is an inner end, the diameter of the inner end is D1, one end of the assembly hole, which is far away from the pipe body, is an outer end, and the diameter of the outer end is D3; one end of the D connecting pipe is inserted into the assembling hole, the inner diameter of the D connecting pipe is D2, the outer diameter of the D connecting pipe is D4, D1 is larger than D2 and smaller than D4, and D3-D4= 0.03-0.2 mm.

Furthermore, the assembly holes are tapered holes, and the diameters of the assembly holes are gradually increased in the direction from the inner end to the outer end.

Further, D3-D4=0.05 to 0.2mm.

Further, the pilot hole includes outer hole section and the interior hole section that communicates each other, and the one end that D was taken over inserts the outer hole section, and the transition department of interior hole section and outer hole section has spacing face, and spacing face and D are taken over the backstop cooperation, and wherein, the diameter of outer hole section is D3, and the diameter of interior hole section is D1.

Further, D3-D4=0.03 to 0.1mm.

Furthermore, the four-way valve is provided with a preset cross section, and the axis of the pipe body and the axis of the assembling hole are both positioned on the preset cross section; on the preset cross section, the axial length of the outer hole section is H1, the axial length of the inner hole section is H2, and H1 is larger than H2.

Further, annular turn-ups and body structure as an organic whole, annular turn-ups and D take over the welding.

Furthermore, the four-way valve further comprises a valve seat, an E connecting pipe, an S connecting pipe and a C connecting pipe, wherein the valve seat is arranged in the pipe body, the valve seat is provided with three connecting holes, and the E connecting pipe, the S connecting pipe and the C connecting pipe are communicated with the three connecting holes in a one-to-one correspondence manner.

Further, the four-way valve further comprises a sliding block, the sliding block is slidably arranged in the pipe body, the sliding block is provided with a communicating groove, and the communicating groove is used for communicating at least two connecting holes.

Furthermore, the four-way valve further comprises a piston part and a guide frame, the piston part is slidably arranged in the cavity of the pipe body, the end part of the guide frame is connected with the piston part, and the sliding block is connected with the middle part of the guide frame.

Use the technical scheme of the utility model, a cross valve is provided, include: the valve body comprises a pipe body and an annular flange arranged on the side wall of the pipe body, a hole in the annular flange is an assembly hole, the assembly hole is communicated with the cavity of the pipe body, one end of the assembly hole, which is communicated with the cavity of the pipe body, is an inner end, the diameter of the inner end is D1, one end of the assembly hole, which is far away from the pipe body, is an outer end, and the diameter of the outer end is D3; one end of the D connecting pipe is inserted into the assembling hole, the inner diameter of the D connecting pipe is D2, the outer diameter of the D connecting pipe is D4, D2 is larger than D1 and smaller than D4, and D3-D4= 0.03-0.2 mm. By adopting the scheme, the numerical values of the diameter D1 of the inner end, the inner diameter D2 of the D connecting pipe and the outer diameter D4 of the D connecting pipe are limited in the relation, the D connecting pipe can be ensured to be smoothly inserted into the outer end of the assembling hole, and the D connecting pipe cannot penetrate through the inner end of the assembling hole to enter the inner cavity of the pipe body. The difference value between the diameter D3 of the outer end and the outer diameter D4 of the D connecting pipe is limited in the numerical range, the diameter D1 of the inner end is smaller than the outer diameter D4 of the D connecting pipe, the D connecting pipe can be inserted into the assembly hole, the insertion depth of the D connecting pipe into the assembly hole can be limited, and therefore the influence on the flow of the valve body is avoided.

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 shows a schematic structural diagram of a four-way valve provided by an embodiment of the present invention;

FIG. 2 shows an enlarged partial view of the four-way valve of FIG. 1;

fig. 3 shows a schematic structural diagram of another four-way valve provided by the embodiment of the present invention;

FIG. 4 shows a close-up view of the four-way valve of FIG. 3.

Wherein the figures include the following reference numerals:

10. a valve body; 11. a tube body; 111. annular flanging; 12. an assembly hole; 121. an outer bore section; 122. an inner bore section; 123. a limiting surface;

20. d, taking over a pipe;

30. a valve seat;

40. e, taking over a pipe;

50. s, taking over a pipe;

60. c, taking over the tube.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and 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. 1-2, an embodiment of the utility model provides a four-way valve, include: the valve body 10 comprises a pipe body 11 and an annular flange 111 arranged on the side wall of the pipe body 11, a hole in the annular flange 111 is an assembly hole 12, the assembly hole 12 is communicated with the cavity of the pipe body 11, one end of the assembly hole 12 communicated with the cavity of the pipe body 11 is an inner end, the diameter of the inner end is D1, one end of the assembly hole 12 far away from the pipe body 11 is an outer end, and the diameter of the outer end is D3; one end of the D connecting pipe 20 is inserted into the assembling hole 12, the inner diameter of the D connecting pipe 20 is D2, the outer diameter of the D connecting pipe 20 is D4, D2 is larger than D1 and smaller than D4, and D3-D4= 0.03-0.2 mm.

By adopting the scheme, the numerical values of the diameter D1 of the inner end, the inner diameter D2 of the D connecting pipe 20 and the outer diameter D4 of the D connecting pipe 20 are limited in the relation, the D connecting pipe 20 can be ensured to be smoothly inserted into the outer end of the assembly hole 12, and the D connecting pipe 20 cannot penetrate through the inner end of the assembly hole 12 and extend into the inner cavity of the pipe body 11. The difference value between the diameter D3 of the outer end and the outer diameter D4 of the D connecting pipe 20 is limited in the numerical range, and the diameter D1 of the inner end is smaller than the outer diameter D4 of the D connecting pipe 20, so that the D connecting pipe 20 can be inserted into the assembly hole 12, the insertion depth of the D connecting pipe 20 into the assembly hole 12 can be limited, and the influence on the flow of the valve body 10 is avoided. In the present embodiment, the fitting hole 12 refers to a hole between the inner surface of the tubular body 11 to the end surface of the annular flange 111.

As shown in fig. 2, the fitting hole 12 is a tapered hole, and the diameter of the fitting hole 12 gradually increases in a direction from the inner end to the outer end. Through the setting, set up pilot hole 12 into the bell mouth, guarantee that D takes over 20 and insert the condition of pilot hole 12 smoothly, can restrict the depth of insertion of D take over 20 to avoid D to take over 20 and insert the flow that the depth causes the influence to valve body 10.

In this example, D3-D4=0.05 to 0.2mm. The difference value between the diameter D3 of the outer end and the outer diameter D4 of the D connecting pipe 20 is limited within the numerical range, so that the D connecting pipe 20 can be smoothly inserted into the assembly hole 12, and the insertion depth of the D connecting pipe 20 is limited; meanwhile, by limiting the range of the difference value, the size precision and the assembly and use requirements can be ensured for products with specific specifications.

As shown in fig. 3 and 4, in another embodiment, the assembly hole 12 includes an outer hole section 121 and an inner hole section 122 which are communicated with each other, one end of the D-connection pipe 20 is inserted into the outer hole section 121, a transition between the inner hole section 122 and the outer hole section 121 has a limiting surface 123, and the limiting surface 123 is in stop fit with the D-connection pipe 20, wherein the diameter of the outer hole section 121 is D3, and the diameter of the inner hole section 122 is D1. Through setting up interior hole section 122 and spacing face 123, when the assembly, can avoid D to take over 20 and pass interior hole section 122 when the assembly, and can guarantee spacing face 123 and D and take over 20 contact to inject the depth of insertion of D and take over 20. The outer hole section 121 is arranged, so that the D connecting pipe 20 can be guided, and assembly and installation are facilitated.

In this example, D3-D4=0.03 to 0.1mm. The difference value between the diameter D3 of the outer end and the outer diameter D4 of the D connecting pipe 20 is limited within the numerical range, so that the D connecting pipe 20 can be smoothly inserted into the assembly hole 12, and the insertion depth of the D connecting pipe 20 is limited; meanwhile, by limiting the range of the difference value, the size precision and the assembly and use requirements can be ensured for products with specific specifications.

As shown in fig. 4, the four-way valve has a predetermined cross section, and both the axis of the pipe body 11 and the axis of the fitting hole 12 are located on the predetermined cross section; on the preset cross section, the axial length of the outer hole section 121 is H1, the axial length of the inner hole section 122 is H2, and H1 > H2.

By limiting the numerical values of the axial length H1 of the outer bore section 121 and the axial length H2 of the inner bore section 122 within the above relationship, the D connection pipe and the annular flange 111 are not welded poorly due to the too shallow insertion depth of the D connection pipe after being inserted into the assembly hole 12, thereby reducing the overall structural strength of the valve body 10. Wherein the axis of the pipe body 11 and the axis of the fitting hole 12 are perpendicular to each other. The axial length H1 of the inner bore section 122 is a distance from the inner surface of the tubular body 11 to the outer bore section 121 at a predetermined cross section.

Specifically, the annular flange 111 and the pipe body 11 are of an integral structure, and the annular flange 111 and the D-shaped connecting pipe 20 are welded. By providing the annular flange 111 and the tubular body 11 as an integral structure, processing and installation is facilitated. Wherein, annular turn-ups 111 and D take over 20 and adopt welded mode to connect, and is more stable, reliable. The annular flange 111 is formed by flanging an opening position provided on the pipe body 11. The flanging process is to preset a preset opening on the side wall of the pipe body 11, and pull out a hole by using a conical surface tool to form a flanging hole, namely an assembly hole 12.

As shown in fig. 1, the four-way valve further includes a valve seat 30, an E connection pipe 40, an S connection pipe 50, and a C connection pipe 60, the valve seat 30 is disposed in the pipe body 11, the valve seat 30 has three connection holes, and the E connection pipe 40, the S connection pipe 50, and the C connection pipe 60 are in one-to-one correspondence with the three connection holes. By providing the valve seat 30 and connecting the E nozzle 40, the S nozzle 50, and the C nozzle 60 with an external structure, the function of a four-way valve can be realized.

The four-way valve further comprises a sliding block, the sliding block is slidably arranged in the pipe body 11, the sliding block is provided with a communicating groove, and the communicating groove is used for communicating at least two connecting holes. Through the arrangement, the communicating groove is communicated with different assembling holes 12 during reversing, so that reversing of the four-way valve is realized.

Further, the four-way valve further comprises a piston part and a guide frame, the piston part is slidably arranged in the cavity of the pipe body 11, the end part of the guide frame is connected with the piston part, and the sliding block is connected with the middle part of the guide frame. By adopting the arrangement, the guide frame and the sliding block are driven to move by the movement of the piston part, so that the reversing of the four-way valve is realized.

The four-way valve is positioned in a refrigerant loop formed by an indoor heat exchanger, an outdoor heat exchanger and the like and comprises three major parts, namely an electromagnetic coil, a main valve and a pilot valve, wherein end covers are welded at two ends of a valve body 10 of the main valve, a sliding block is arranged in the valve body 10, the sliding block is respectively connected with a left piston part and a right piston part through a guide frame, and a cavity of the main valve is divided into a left cavity, a middle cavity and a right cavity by the left piston part and the right piston part; the upper part of the slide block is processed with a step and is matched with the guide frame through the step, the lower part of the slide block is provided with a communication groove, for example, an E connecting pipe 40 and an S connecting pipe 50 form a closed fluid circulation through the communication groove, a D connecting pipe 20 and a C connecting pipe 60 form another closed fluid circulation through the inner cavity of the valve body 10, and the paths of the two groups of fluid circulations are separated by the main body part of the slide block. When the air conditioner needs to refrigerate, under the action of the pilot valve, a pressure difference is formed between the left chamber and the right chamber of the main valve, the pressure difference between the left chamber and the right chamber of the main valve pushes the sliding block and the two piston parts to move, so that a refrigerant in the system flows from an exhaust port of the compressor to an air suction port of the compressor, and the system is in a refrigerating working state; when the air conditioner needs to be heated, a pressure difference is formed between the left chamber and the right chamber of the main valve under the action of the pilot valve, the pressure difference pushes the sliding block and the two piston parts to move in opposite directions, so that the refrigerant automatically flows to the suction port of the compressor, and the system is in a heating working state.

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.

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 exemplary 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 parts and steps, 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.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown 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 terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; 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.

Claims

1. A four-way valve, comprising:

the valve body (10), the valve body (10) comprises a pipe body (11) and an annular flange (111) arranged on the side wall of the pipe body (11), a hole in the annular flange (111) is an assembly hole (12), the assembly hole (12) is communicated with the cavity of the pipe body (11), one end of the assembly hole (12) communicated with the cavity of the pipe body (11) is an inner end, the diameter of the inner end is D1, one end of the assembly hole (12) far away from the pipe body (11) is an outer end, and the diameter of the outer end is D3;

the D connecting pipe (20), one end of the D connecting pipe (20) is inserted into the assembly hole (12), the inner diameter of the D connecting pipe (20) is D2, the outer diameter of the D connecting pipe (20) is D4, D2 is larger than D1 and smaller than D4, and D3-D4= 0.03-0.2 mm.

2. The four-way valve according to claim 1, wherein the fitting hole (12) is a tapered hole, and the diameter of the fitting hole (12) is gradually increased in a direction from the inner end to the outer end.

3. The four-way valve according to claim 2, wherein D3-D4= 0.05-0.2 mm.

4. The four-way valve according to claim 1, wherein the assembly hole (12) comprises an outer hole section (121) and an inner hole section (122) which are communicated with each other, one end of the D-connection pipe (20) is inserted into the outer hole section (121), a transition part between the inner hole section (122) and the outer hole section (121) is provided with a limiting surface (123), the limiting surface (123) is in stop fit with the D-connection pipe (20), wherein the diameter of the outer hole section (121) is D3, and the diameter of the inner hole section (122) is D1.

5. The four-way valve according to claim 4 wherein D3-D4= 0.03-0.1 mm.

6. The four-way valve according to claim 4, characterized in that it has a predetermined section on which both the axis of the tubular body (11) and the axis of the fitting hole (12) are located; on the preset cross section, the axial length of the outer hole section (121) is H1, the axial length of the inner hole section (122) is H2, and H1 is larger than H2.

7. The four-way valve according to claim 1, wherein the annular flange (111) and the tube body (11) are of an integral structure, and the annular flange (111) and the D-shaped connecting tube (20) are welded.

8. The four-way valve according to claim 1, further comprising a valve seat (30), an E connection pipe (40), an S connection pipe (50), and a C connection pipe (60), wherein the valve seat (30) is disposed in the pipe body (11), the valve seat (30) has three connection holes, and the E connection pipe (40), the S connection pipe (50), and the C connection pipe (60) are in one-to-one communication with the three connection holes.

9. The four-way valve according to claim 8, further comprising a slider slidably disposed in the pipe body (11), the slider having a communication groove for communicating at least two of the connection holes.

10. The four-way valve according to claim 9, further comprising a piston portion slidably disposed in the cavity of the tube (11) and a guide frame having an end connected to the piston portion and a middle connected to the slider.