CN213685415U - Check valve and air conditioning equipment - Google Patents

Check valve and air conditioning equipment Download PDF

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Publication number
CN213685415U
CN213685415U CN202021949418.4U CN202021949418U CN213685415U CN 213685415 U CN213685415 U CN 213685415U CN 202021949418 U CN202021949418 U CN 202021949418U CN 213685415 U CN213685415 U CN 213685415U
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CN
China
Prior art keywords
valve
valve body
groove
cavity
piston
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Active
Application number
CN202021949418.4U
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Chinese (zh)
Inventor
赵剑波
宣永斌
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Zhejiang Dunan Artificial Environment Co Ltd
Original Assignee
Zhejiang Dunan Artificial Environment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Priority to CN202021949418.4U priority Critical patent/CN213685415U/en
Priority to JP2023511810A priority patent/JP7482318B2/en
Priority to KR1020237009911A priority patent/KR20230051595A/en
Priority to PCT/CN2021/089909 priority patent/WO2022052478A1/en
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Publication of CN213685415U publication Critical patent/CN213685415U/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Check Valves (AREA)
  • Lift Valve (AREA)
  • Valve Housings (AREA)

Abstract

The utility model relates to a check valve and air conditioning equipment, this check valve includes: valve body, valve seat, piston, support piece and elastic component. The valve body is provided with a valve cavity. The valve seat is fixedly arranged in the valve cavity and is in sealing connection with the inner wall of the valve cavity. The valve seat divides the valve chamber into a first chamber and a second chamber. The valve seat is provided with a first channel which is communicated with the first cavity and the second cavity. The piston is arranged in the first cavity and is movably matched with the first channel to open or close the first channel. The supporting piece is fixedly arranged on the inner wall of the first cavity. The elastic piece is arranged between the support piece and the piston, one end of the elastic piece is abutted against the support piece, the other end of the elastic piece is abutted against the piston, so that the piston has a tendency of moving towards the valve seat, and the first channel is closed from one side. The check valve also comprises a first connecting pipe and a second connecting pipe which are arranged at two ends of the valve body, and the valve body, the first connecting pipe and the second connecting pipe are of an integrally formed structure. The utility model provides a because the welding leads to the check valve to have the problem of fluid medium leakage risk not firmly.

Description

Check valve and air conditioning equipment
Technical Field
The utility model relates to the technical field of valves, especially, relate to a check valve and air conditioning equipment.
Background
In the design process of the air conditioning equipment, in order to prevent the influence of the air flow discharged after the air conditioning equipment is shut down on a compressor of the air conditioning equipment, a spring type one-way valve is arranged on an exhaust pipe of the compressor. Generally, a spring type check valve used at an exhaust end of a compressor comprises a valve body, a valve cover, a first connecting pipe and a second connecting pipe, wherein the valve body and the valve cover, the valve body and the first connecting pipe and the valve cover and the second connecting pipe are connected in a welding mode. The welds are prone to weak welds, which may lead to a risk of leakage of the fluid medium in the valve body.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a check valve and an air conditioning apparatus, which solve the problem in the prior art that the spring-type check valve has a risk of fluid medium leakage due to poor welding.
The utility model provides a check valve, include: valve body, valve seat, piston, support piece and elastic component. The valve body is provided with a valve cavity. The valve seat is fixedly arranged in the valve cavity and is in sealing connection with the inner wall of the valve cavity. The valve seat divides the valve chamber into a first chamber and a second chamber. The valve seat is provided with a first channel which is communicated with the first cavity and the second cavity. The piston is arranged in the first cavity and is movably matched with the first channel to open or close the first channel. The supporting piece is fixedly arranged on the inner wall of the first cavity. The elastic piece is arranged between the support piece and the piston, one end of the elastic piece is abutted against the support piece, the other end of the elastic piece is abutted against the piston, so that the piston has a tendency of moving towards the valve seat, and the first channel is closed from one side. The check valve also comprises a first connecting pipe and a second connecting pipe which are arranged at two ends of the valve body, and the valve body, the first connecting pipe and the second connecting pipe are of an integrally formed structure.
In an embodiment of the present invention, the first connecting pipe and the second connecting pipe are formed at both ends of the valve body by spin forming. The spinning process is mature, and complex curved surfaces in various shapes can be processed, so that the first connecting pipe and the second connecting pipe processed by the spinning process have good connectivity with the valve body, and fluid media can be effectively prevented from leaking from the connection position of the valve body and the first connecting pipe or the connection position of the valve body and the second connecting pipe.
In an embodiment of the utility model, the disk seat outer wall is equipped with first spacing groove, and the valve body is equipped with first spacing arch, and first spacing arch is inserted and is arranged in first spacing inslot in order to be fixed in the valve body with the disk seat. So set up, the disk seat can firmly be fixed in the valve body to there is not the welding point, has reduced the risk that fluid medium leaked.
In an embodiment of the present invention, the first limiting groove is annular, and the cross-section of the first limiting groove is square; one side of the valve body, which deviates from the first limiting bulge, corresponds to the first limiting bulge, and is provided with a first pressure groove. The first limiting groove is annular, the cross section of the first limiting groove is square, and the first limiting groove can be conveniently and directly machined and formed by a lathe. In the process of forming the first limiting bulges in the machining process, the valve body is extruded towards the inner side of the valve body to directly form the first limiting bulges and the first pressure groove, so that the machining and forming of the first limiting bulges are simpler.
In an embodiment of the present invention, the width A of the first limiting groove2Thickness A of valve seat3The ratio of (A) to (B) is 20-30%;
and/or the width A of the first indent1Is less than or equal to the width A of the first limit groove2；
And/or the depth B of the first limit groove2Wall thickness B of valve body1The ratio of (A) to (B) is 15-25%;
and/or the distance B of the deepest first limiting bulge of the first indent at the high position3Wall thickness B of valve body1The ratio of (A) to (B) is 75-85%;
and/or the one-way valve also comprises a connecting section for connecting the valve body and the second connecting pipe, and the shortest distance h between the valve seat and the connecting section is greater than or equal to the thickness A of the valve seat3。
In an embodiment of the present invention, the valve body forms the first limiting protrusion and the first pressing groove by spin forming. The spinning process is mature, and can be used for processing complex curved surfaces in various shapes, so that the first limiting bulge processed by the spinning forming process has better structural strength.
In an embodiment of the present invention, the check valve further includes a supporting member, the supporting member includes a fixing portion and a guiding portion, the fixing portion is fixedly disposed on the inner wall of the first cavity; one end of the guide part is connected with the fixing part, and the other end of the guide part extends towards the valve seat; one end of the piston, which is far away from the valve seat, is movably sleeved on the guide part. So set up, can make the piston move along the direction that the guide part extends, be favorable to the piston to open and close first passageway under the effect of guide part accurately.
In an embodiment of the present invention, the outer wall of the fixing portion is provided with a second limiting groove, the valve body is provided with a second limiting protrusion, and the second limiting protrusion is inserted into the second limiting groove to fix the support member into the valve body. So set up, support piece can firmly be fixed in the valve body to there is not the welding point, reduced the risk of fluid medium leakage.
In an embodiment of the present invention, the second limiting groove is annular, and the cross-section of the second limiting groove is square; one side of the valve body, which deviates from the second limiting bulge, is provided with a second pressure groove corresponding to the second limiting bulge. The second limiting groove is annular, the cross section of the second limiting groove is square, and the second limiting groove can be conveniently and directly machined and formed by a lathe. In the process of forming the second limit protrusion, the valve body is extruded through the inner side of the valve body to directly form the second limit protrusion and the second pressure groove, so that the second limit protrusion is more simply formed.
In an embodiment of the present invention, the width A of the second limiting groove5Thickness A of the fixing part6The ratio of (A) to (B) is 20-30%;
and/or the width A of the second indent4Is less than or equal to the width A of the second limit groove5；
And/or the depth B of the second limit groove5Wall thickness B of valve body4The ratio of (A) to (B) is 15-25%;
and/or the distance B of the deepest second limiting bulge of the second indent at the high position6Wall thickness B of valve body4The ratio of (A) to (B) is 75-85%.
In an embodiment of the present invention, the valve body forms the second limiting protrusion and the second pressing groove by spin forming. The spinning process is mature, and can be used for processing complex curved surfaces in various shapes, so that the second limiting bulge processed by the spinning forming process has better structural strength.
The utility model also provides an air conditioning equipment, including above arbitrary one embodiment the check valve.
The utility model provides a check valve in check valve's assembling process, accomplishes the assembly of support piece, elastic component, piston and disk seat earlier, installs support piece, elastic component, piston and the disk seat that the assembly was accomplished in the valve intracavity again, takes over the machine-shaping with the first takeover and the second at valve body both ends at last. The fluid medium enters the second cavity of the valve body from the second connecting pipe, then the fluid medium enters the first channel of the valve seat and enters the first cavity of the valve body through the ejection piston, and finally the fluid medium enters the first connecting pipe and leaves the valve cavity of the valve body. At this time, the piston closes the first passage under the elastic force of the elastic member, and the fluid medium is prevented from flowing back. Because valve body, first takeover and second takeover are integrated into one piece structure, consequently, need not weld between valve body, first takeover and the second takeover, do not have the welding point, therefore, there is not the risk of revealing in the fluid medium. That is, the utility model provides a check valve has solved among the prior art because the welding leads to the spring check valve to have the problem of fluid medium leakage risk not firmly.
Drawings
Fig. 1 is a cross-sectional view of a check valve according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A of FIG. 1;
fig. 3 is an enlarged view of fig. 1 at B.
Reference numerals: 1. a valve body; 11. a valve cavity; 111. a first chamber; 112. a second chamber; 12. a first limit protrusion; 13. a first indent; 14. a second limit bulge; 15. a second press groove; 2. a valve seat; 21. a first channel; 22. a first limit groove; 3. a piston; 4. a support member; 41. a fixed part; 411. a second limit groove; 42. a guide portion; 5. an elastic member; 6. a first adapter tube; 7. a second adapter tube; 8. and (4) connecting the sections.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the check valve provided by the present invention includes: valve body 1, valve seat 2, piston 3, support 4 and elastic member 5. The valve body 1 is provided with a valve cavity 11. The valve seat 2 is fixedly arranged in the valve cavity 11, and the valve seat 2 is connected with the inner wall of the valve cavity 11 in a sealing mode. The valve seat 2 divides the valve chamber 11 into a first chamber 111 and a second chamber 112. The valve seat 2 is provided with a first passage 21, and the first passage 21 communicates the first chamber 111 and the second chamber 112. The piston 3 is disposed in the first chamber 111, and the piston 3 is movably engaged with the first passage 21 to open or close the first passage 21. The supporting member 4 is fixedly disposed on the inner wall of the first chamber 111. The elastic element 5 is arranged between the support 4 and the piston 3, the elastic element 5 abutting on one end the support 4 and on the other end the piston 3, so that the piston 3 has a tendency to move towards the valve seat 2, closing off the first passage 21 from one side. The check valve also comprises a first connecting pipe 6 and a second connecting pipe 7 which are arranged at two ends of the valve body 1, and the valve body 1, the first connecting pipe 6 and the second connecting pipe 7 are of an integrally formed structure.
In the assembly process of the check valve, the support member 4, the elastic member 5, the piston 3 and the valve seat 2 are assembled firstly, then the assembled support member 4, the assembled elastic member 5, the assembled piston 3 and the assembled valve seat 2 are arranged in the valve cavity 11, and finally the first connecting pipe 6 and the second connecting pipe 7 at the two ends of the valve body 1 are machined and molded. The fluid medium enters the second chamber 112 of the valve body 1 from the second connecting pipe 7, after which the fluid medium enters the first passage 21 of the valve seat 2 and enters the first chamber 111 of the valve body 1 by the ejection piston 3, and finally the fluid medium enters the first connecting pipe 6 and leaves the valve chamber 11 of the valve body 1. At this time, the piston 3 closes the first passage 21 by the elastic force of the elastic member 5, and prevents the fluid medium from flowing backward.
Because valve body 1, first takeover 6 and second takeover 7 are integrated into one piece structure, consequently, do not need the welding between valve body 1 and the first takeover 6 to also do not need the welding between valve body 1 and the second takeover 7, there is not the welding point, therefore, there is not the risk of revealing in the fluid medium. That is, the utility model provides a check valve has solved among the prior art because the welding leads to the spring check valve to have the problem of fluid medium leakage risk not firmly.
In one embodiment, the first adapter tube 6 and the second adapter tube 7 are formed at two ends of the valve body 1 by spin forming. The spinning process is mature, and complex curved surfaces in various shapes can be processed, so that the first connecting pipe 6 and the second connecting pipe 7 processed by the spinning process have good connectivity with the valve body 1, and fluid media can be effectively prevented from leaking from the connection part of the valve body 1 and the first connecting pipe 6 or the connection part of the valve body 1 and the second connecting pipe 7.
In one embodiment, as shown in fig. 1, the outer wall of the valve seat 2 is provided with a first limiting groove 22, the valve body 1 is provided with a first limiting protrusion 12, and the first limiting protrusion 12 is inserted into the first limiting groove 22 to fix the valve seat 2 in the valve body 1. In the actual processing process, first, a first limit groove 22 is processed on the side surface of the valve seat 2, then the valve seat 2 is placed in the valve cavity 11, and finally, a first limit protrusion 12 is formed by processing and the first limit groove 22 is clamped. So set up, valve seat 2 can firmly be fixed in valve body 1 to there is not the welding point, has reduced the risk that fluid medium leaks.
In one embodiment, as shown in fig. 1, the first limiting groove 22 is annular, and the cross section of the first limiting groove 22 is square. One side of the valve body 1 departing from the first limiting protrusion 12 is provided with a first indent 13 corresponding to the first limiting protrusion 12. The first limiting groove 22 is annular, and the cross section of the first limiting groove 22 is square, so that the first limiting groove 22 can be directly machined and formed by a lathe conveniently. In the process of forming the first limiting protrusion 12 by machining, the valve body 1 is directly extruded towards the inner side of the valve body 1 to form the first limiting protrusion 12 and the first pressing groove 13, so that the machining and forming of the first limiting protrusion 12 are simpler.
In one embodiment, as shown in FIGS. 1 and 2, the width A of the first limiting groove 222Thickness A of valve seat 23The ratio of (2) is 20% -30%, so that the first limiting groove 22 can be firmly connected to the first limiting protrusion 12, and the structural stability of the valve seat 2 is not affected by the too wide first limiting groove 22. But not limited thereto, the width A of the first limiting groove 222Thickness A of valve seat 23The ratio of (2) can also be 30-40%, so that the first limit protrusion 12 and the first limit groove 22 can be firmly connected while the structural stability of the valve seat 2 is ensured. Width a of the first indent 131Is less than or equal to the width A of the first limit groove 222Therefore, the structural strength of the valve body 1 at the first limiting protrusion 12 is improved. Depth B of the first limiting groove 222Wall thickness B of valve body 11The ratio of (1) is 15% -25%, so, be favorable to improving the structural strength of valve body 1 at first spacing arch 12 department. The distance B from the highest position of the first limiting bulge 12 at the deepest part of the first indent 133Wall thickness B of valve body 11The ratio of (1) is 75% -85%, so, be favorable to improving the structural strength of valve body 1 at first spacing arch 12 department. The one-way valve also comprises a connecting section 8 for connecting the valve body 1 and the second connecting pipe 7, and the shortest distance h between the valve seat 2 and the connecting section 8 is greater than or equal to the thickness A of the valve seat 23So arranged, the assembly of the check valve is facilitated.
In one embodiment, the valve body 1 is formed with a first limiting protrusion 12 and a first pressing groove 13 by spin forming. The spinning process is mature, and can process complex curved surfaces with various shapes, so that the first limiting bulge 12 processed by the spinning process has better structural strength.
In one embodiment, as shown in fig. 1, the check valve further includes a supporting member 4, the supporting member 4 includes a fixing portion 41 and a guiding portion 42, and the fixing portion 41 is fixed on an inner wall of the first chamber 111. One end of the guide part 42 is connected with the fixing part 41, and the other end extends towards the valve seat 2; one end of the piston 3 away from the valve seat 2 is movably sleeved on the guide part 42. With this arrangement, the piston 3 can be moved in the direction in which the guide portion 42 extends, which is advantageous for the piston 3 to accurately open and close the first passage 21 by the guide portion 42.
In an embodiment, as shown in fig. 1, the outer wall of the fixing portion 41 is provided with a second limiting groove 411, the valve body 1 is provided with a second limiting protrusion 14, and the second limiting protrusion 14 is inserted into the second limiting groove 411 to fix the supporting member 4 in the valve body 1. In the actual process, first, the second limiting groove 411 needs to be machined on the side surface of the fixing portion 41 of the supporting member 4, then the supporting member 4 is placed into the valve cavity 11, and finally the second limiting protrusion 14 is formed by machining and the second limiting groove 411 is clamped. So set up, support piece 4 can firmly be fixed in valve body 1 to there is not the welding point, has reduced the risk of fluid medium leakage.
In one embodiment, as shown in fig. 1, the second limiting groove 411 is annular, and the cross section of the second limiting groove 411 is square; one side of the valve body 1 departing from the second limit protrusion 14 is provided with a second indent 15 corresponding to the second limit protrusion 14. The second limiting groove 411 is annular, and the cross section of the second limiting groove 411 is square, so that the second limiting groove 411 can be directly machined and formed by a lathe conveniently. In the process of forming the second limit protrusion 14 by machining, the second limit protrusion 14 and the second indent 15 are directly formed by extruding the valve body 1 toward the inner side of the valve body 1, so that the machining and forming of the second limit protrusion 14 are simpler.
In one embodiment, as shown in FIG. 3, the width A of the second limiting groove 4115Thickness A of the fixing portion 416Is 20% -30%, thus, the second limit slot 411 can be alignedThe second stopper protrusion 14 can be coupled together more firmly, and the structural stability of the supporting member 4 is not affected by the width of the second stopper groove 411. But not limited thereto, the width A of the second limiting groove 4115Thickness A of the fixing portion 416The ratio of (2) can also be 30-40%, so that the second limit protrusion 14 and the second limit groove 411 can be firmly connected while the structural stability of the supporting member 4 is ensured. Width a of the second indent 154Is less than or equal to the width A of the second limit slot 4115Thus, the structural strength of the valve body 1 at the second limiting protrusion 14 is improved. Depth B of the second limiting groove 4115Wall thickness B of valve body 14The ratio of (1) is 15% -25%, so, be favorable to improving the structural strength of valve body 1 at second spacing arch 14 department. The distance B from the highest position of the second limiting projection 14 at the deepest part of the second indent 156Wall thickness B of valve body 14The ratio of (1) is 75% -85%, so, be favorable to improving the structural strength of valve body 1 at second spacing arch 14 department.
In one embodiment, the valve body 1 is formed with the second limiting protrusion 14 and the second indent 15 by spin forming. The spinning process is mature, and complex curved surfaces in various shapes can be processed, so that the second limiting bulge 14 processed by the spinning process has better structural strength.
The utility model also provides an air conditioning equipment, including above arbitrary one embodiment the check valve.
The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (12)

1. A check valve, comprising:
the valve body (1) is provided with a valve cavity (11);
the valve seat (2) is fixedly arranged in the valve cavity (11), and the valve seat (2) is in sealing connection with the inner wall of the valve cavity (11); the valve seat (2) divides the valve chamber (11) into a first chamber (111) and a second chamber (112); the valve seat (2) is provided with a first channel (21), and the first channel (21) is communicated with the first cavity (111) and the second cavity (112);
the piston (3) is arranged in the first cavity (111), and the piston (3) is movably matched with the first channel (21) to open or close the first channel (21);
the supporting piece (4) is fixedly arranged on the inner wall of the first cavity (111); and
-an elastic element (5) interposed between said support (4) and said piston (3), said elastic element (5) having one end abutting against said support (4) and the other end abutting against said piston (3) so as to give said piston (3) a tendency to move towards said valve seat (2) to close said first passage (21) from one side;
the check valve is characterized by further comprising a first connecting pipe (6) and a second connecting pipe (7) which are arranged at two ends of the valve body (1), wherein the valve body (1), the first connecting pipe (6) and the second connecting pipe (7) are of an integrally formed structure.
2. The non-return valve according to claim 1, characterized in that the first adapter tube (6) and the second adapter tube (7) are formed by spinning at both ends of the valve body (1).
3. The check valve according to claim 1, characterized in that the outer wall of the valve seat (2) is provided with a first limiting groove (22), the valve body (1) is provided with a first limiting protrusion (12), and the first limiting protrusion (12) is inserted into the first limiting groove (22) to fix the valve seat (2) in the valve body (1).
4. A check valve according to claim 3, wherein the first retainer groove (22) is annular and the cross-section of the first retainer groove (22) is square; one side of the valve body (1) departing from the first limiting protrusion (12) is provided with a first pressure groove (13) corresponding to the first limiting protrusion (12).
5. Non-return valve according to claim 4, characterised in that the width A of the first retaining groove (22)2With the thickness A of the valve seat (2)3The ratio of (A) to (B) is 20-30%;
and/or the width A of the first indent (13)1Is less than or equal to the width A of the first limit groove (22)2；
And/or the depth B of the first limiting groove (22)2The wall thickness B of the valve body (1)1The ratio of (A) to (B) is 15-25%;
and/or the deepest part of the first indent (13) is a distance B from the high part of the first limiting bulge (12)3The wall thickness B of the valve body (1)1The ratio of (A) to (B) is 75-85%;
and/or the one-way valve also comprises a connecting section (8) for connecting the valve body (1) and the second connecting pipe (7), and the shortest distance h between the valve seat (2) and the connecting section (8) is greater than or equal to the thickness A of the valve seat (2)3。
6. The non-return valve according to claim 4, characterized in that the valve body (1) is formed by spin forming the first limit projection (12) and the first indent (13).
7. The non-return valve according to claim 1, characterized in that it further comprises a support element (4), said support element (4) comprising a fixing portion (41) and a guide portion (42), said fixing portion (41) being fixed to the inner wall of said first chamber (111); one end of the guide part (42) is connected with the fixing part (41), and the other end of the guide part extends towards the valve seat (2); one end of the piston (3) far away from the valve seat (2) is movably sleeved on the guide part (42).
8. The non-return valve according to claim 7, characterized in that the outer wall of the fixing portion (41) is provided with a second limiting groove (411), the valve body (1) is provided with a second limiting protrusion (14), and the second limiting protrusion (14) is inserted into the second limiting groove (411) to fix the support member (4) in the valve body (1).
9. The check valve according to claim 8, wherein the second limit groove (411) is ring-shaped, and a cross section of the second limit groove (411) is square; one side of the valve body (1) departing from the second limiting protrusion (14) is provided with a second pressure groove (15) corresponding to the second limiting protrusion (14).
10. A non-return valve according to claim 9, characterised in that the width a of the second retaining groove (411)5Thickness A of the fixing part (41)6The ratio of (A) to (B) is 20-30%;
and/or the width A of the second indent (15)AIs less than or equal to the width A of the second limit groove (411)5；
And/or the depth B of the second limit groove (411)5The wall thickness B of the valve body (1)4The ratio of (A) to (B) is 15-25%;
and/or the deepest part of the second indent (15) is the distance B of the high part of the second limit bulge (14)6The wall thickness B of the valve body (1)4The ratio of (A) to (B) is 75-85%.
11. The non-return valve according to claim 9, characterized in that the valve body (1) is formed with the second limit projection (14) and the second indent (15) by means of spin forming.
12. An air conditioning apparatus, characterized by comprising a one-way valve according to any one of claims 1-11.
CN202021949418.4U 2020-09-08 2020-09-08 Check valve and air conditioning equipment Active CN213685415U (en)

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CN202021949418.4U CN213685415U (en) 2020-09-08 2020-09-08 Check valve and air conditioning equipment
JP2023511810A JP7482318B2 (en) 2020-09-08 2021-04-26 One-way valves and air conditioning equipment
KR1020237009911A KR20230051595A (en) 2020-09-08 2021-04-26 Check valves and air conditioners
PCT/CN2021/089909 WO2022052478A1 (en) 2020-09-08 2021-04-26 One-way valve and air conditioning device

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KR (1) KR20230051595A (en)
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WO2022052478A1 (en) * 2020-09-08 2022-03-17 浙江盾安人工环境股份有限公司 One-way valve and air conditioning device

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Publication number Priority date Publication date Assignee Title
WO2022052478A1 (en) * 2020-09-08 2022-03-17 浙江盾安人工环境股份有限公司 One-way valve and air conditioning device

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WO2022052478A1 (en) 2022-03-17

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