CN219139966U - Needle valve connecting structure - Google Patents
Needle valve connecting structure Download PDFInfo
- Publication number
- CN219139966U CN219139966U CN202222837892.3U CN202222837892U CN219139966U CN 219139966 U CN219139966 U CN 219139966U CN 202222837892 U CN202222837892 U CN 202222837892U CN 219139966 U CN219139966 U CN 219139966U
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- China
- Prior art keywords
- needle valve
- connecting sleeve
- sleeve
- communicating pipe
- connection
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- 238000003466 welding Methods 0.000 claims abstract description 40
- 230000004323 axial length Effects 0.000 claims abstract description 24
- 238000005476 soldering Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 6
- 210000002445 nipple Anatomy 0.000 claims description 6
- 230000006378 damage Effects 0.000 abstract description 6
- 241001391944 Commicarpus scandens Species 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- 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
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lift Valve (AREA)
Abstract
The application relates to a needle valve connecting structure, which comprises a needle valve, a connecting sleeve and a communicating pipe, wherein a flanging hole is formed in the communicating pipe, and the connecting sleeve is fixed onto the communicating pipe through welding between the hole wall of the flanging hole and the connecting sleeve; one end of the connecting sleeve, which is far away from the flanging hole, is welded and fixed with the needle valve; wherein, the axial length of the connecting sleeve is less than 25mm. The connecting sleeve has the advantages that the connecting sleeve with the shorter length and the larger diameter is lapped between the needle valve and the communicating pipe, the distance between the needle valve and the communicating pipe is shortened, the damage moment of the connecting sleeve is increased, the needle valve is not easy to be twisted off, and the connection strength between the needle valve and the communicating pipe is improved.
Description
Technical Field
The application relates to the technical field of valves, in particular to a needle valve connecting structure.
Background
Needle valves are commonly used in piping systems to open or shut off the passage of the piping. The needle valve comprises a valve seat and a valve pipe arranged in the valve seat, when the needle valve is applied to a pipeline system, the needle valve is often connected with a communicating pipe in the pipeline system through the valve pipe in a welded mode, but due to the fact that the length of the valve pipe is long, the diameter of the valve pipe is relatively small, the hardness of the valve pipe can be reduced after welding, and therefore the connection strength of the needle valve and the communicating pipe is not high.
Disclosure of Invention
Accordingly, it is necessary to provide a structure capable of improving the connection strength between the needle valve and the communication pipe.
In order to solve the technical problems, the application provides the following technical scheme:
the needle valve connecting structure comprises a needle valve, a connecting sleeve and a communicating pipe, wherein a flanging hole is formed in the communicating pipe, and the connecting sleeve is fixed onto the communicating pipe through welding between the hole wall of the flanging hole and the connecting sleeve; one end, far away from the flanging hole, of the connecting sleeve is welded and fixed with the needle valve;
wherein the axial length of the connecting sleeve is smaller than 25mm.
It can be understood that through the structure that sets up adapter sleeve overlap joint needle valve and communicating pipe to shorten the axial length of adapter sleeve, make the destruction moment of adapter sleeve grow, the needle valve is difficult to be twisted off, so, the connection of needle valve on communicating pipe can not be destroyed because of the vibration intensity that can't bear the compressor.
In one embodiment, the needle valve is a brass needle valve, the connecting sleeve is a copper sleeve, the communicating pipe is a stainless steel pipe, and the axial length of the connecting sleeve is smaller than 10mm.
It can be understood that the fusing point of red copper is higher, satisfies the welding temperature of stainless steel pipe, so sets up, is convenient for pass through red copper cover welding between brass needle valve and the stainless steel pipe, and when the axial length of adapter sleeve is less than 10mm, the distance between needle valve and the communicating pipe is nearer, and the rupture moment of adapter sleeve improves, satisfies the intensity of use requirement more easily, and the needle valve is difficult for breaking more, and connection stability is good.
In one embodiment, the needle valve is provided with a valve seat, a part of the valve seat is positioned in the connecting sleeve along the axial direction of the connecting sleeve, and a part of the valve seat positioned in the connecting sleeve forms a pipe part which is welded and fixed with the connecting sleeve.
It can be understood that the connecting sleeve is arranged to be sleeved on the pipe part of the valve seat by extending the part of the valve seat into the connecting sleeve, so that the diameter of the connecting sleeve is larger, the breaking moment is improved, the connecting sleeve is not easy to break, and the vibration resistance is better.
In one embodiment, a plane is defined, the plane is perpendicular to the axis of the communicating pipe, and along the axial direction of the communicating pipe, the projection of the pipe portion on the plane is overlapped with the projection of the hole wall of the flanging hole on the plane.
It can be understood that the pipe part and the hole wall of the flanging hole are overlapped along the axial direction of the communicating pipe, so that the damage moment of the overlapped part is improved, the overall connection strength of the connecting sleeve is improved, and the needle valve is not easy to be twisted off.
In one embodiment, the end face of the pipe portion is arranged flush with the lower end face of the connecting sleeve in the axial direction of the connecting sleeve.
It can be understood that the arrangement improves the overlap depth between the connecting sleeve and the valve seat, and is beneficial to the connection stability of the connecting sleeve.
In one embodiment, a plane is defined, the plane is perpendicular to the axis of the communicating pipe, a preset gap is formed between the projection of the edge of the pipe orifice of the pipe part on the plane and the projection of the edge of the orifice of the flanging hole on the plane along the axial direction of the communicating pipe, and the distance of the preset gap is less than or equal to 3mm.
It can be appreciated that the arrangement avoids insufficient connection strength fracture of the connecting sleeve caused by overlarge distance of the preset gap.
In one embodiment, the valve seat has a stepped surface above the tube portion, the stepped surface being capable of abutting against the nipple to axially retain the valve seat to the nipple.
It will be appreciated that this arrangement facilitates assembly and welding of the connection sleeve.
In one embodiment, a first welding position is formed between the connecting sleeve and the valve seat, and the axial length of the first welding position is greater than 4mm.
It can be understood that by setting the axial length of the first welding part between the connecting sleeve and the needle valve to be greater than 4mm, enough welding depth is ensured, so that the welding strength between the connecting sleeve and the needle valve meets the use requirement.
In one embodiment, a second welding part is formed between the connecting sleeve and the hole wall of the flanging hole, and the axial length of the second welding part is greater than 2mm.
It will be appreciated that the arrangement is such that the strength of the weld between the connection sleeve and the connection tube meets the requirements of use.
In one embodiment, the melting point of the solder at the first soldering site is lower than the melting point of the solder at the second soldering site.
It will be appreciated that this arrangement facilitates the use of solder at the first soldering site and solder at the second soldering site for different soldering patterns.
Due to the application of the technical scheme, compared with the prior art, the method has the following beneficial effects:
the needle valve connection structure of this application request protection, through setting up length shorter, the bigger adapter sleeve overlap joint of diameter is between needle valve and communicating pipe, and the needle valve gets close from the distance of communicating pipe, and the adapter sleeve respectively with needle valve and the communicating pipe between satisfy the welding depth who sets for, weld strength is high for the destruction moment of adapter sleeve improves, and the needle valve is difficult for being twisted off, ensures the joint strength between needle valve and the communicating pipe. Even under the condition that the compressor runs, the connecting sleeve can bear the vibration intensity of the compressor, and is not easy to break.
Drawings
In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic view of a needle valve connection structure provided in the present application.
Reference numerals: 100. a needle valve connection structure; 10. a needle valve; 11. a valve seat; 111. a tube section; 12. a step surface; 20. connecting sleeves; 21. a first welding site; 22. a second welding site; 30. a communicating pipe; 31. a flanging hole; 311. a hole wall.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used in the description of the present application for purposes of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be a direct contact of the first feature with the second feature, or an indirect contact of the first feature with the second feature via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The term "and/or" as used in the specification of this application includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present application provides a needle valve connection structure 100, which includes a needle valve 10, a connecting sleeve 20 and a communicating pipe 30, wherein a flanging hole 31 is formed on the communicating pipe 30, and the connecting sleeve 20 is fixed to the communicating pipe 30 by welding between a hole wall 311 of the flanging hole 31 and the connecting sleeve 20; one end of the connecting sleeve 20, which is far away from the flanging hole 31, is welded and fixed with the needle valve 10; wherein the axial length of the connection sleeve 20 is less than 25mm. By the arrangement, the axial length of the connecting sleeve is short, the damage moment is increased, and the communication strength between the needle valve 10 and the communicating pipe 30 is improved.
In one embodiment, needle valve 10 is provided as a brass needle valve, adapter sleeve 20 is provided as a copper sleeve, and communication tube 30 is provided as a stainless steel tube. Because the melting point of brass is less than 900 ℃, and the welding temperature of a common stainless steel pipe is more than 1000 ℃, the connecting sleeve 20 is set to be a copper sleeve with a higher melting point, the welding temperature of the communicating pipe 30 is met while the material cost of a pipeline system is reduced, and the brass needle valve is welded with the stainless steel pipe through the copper sleeve. Of course, in other embodiments, the needle valve 10 may be made of other materials such as red copper or copper alloy, the connecting sleeve 20 may be made of other materials such as stainless steel that can be used to weld the needle valve 10 and the communicating tube 30 at the same time, and the communicating tube 30 may be made of other materials such as red copper, which is selected according to practical situations.
Preferably, the axial length of the connection sleeve 20 is less than 10mm. The connection sleeve 20 is substantially cylindrical such that the installed connection sleeve 20 overlaps the needle valve 10 and the communication pipe 30. Therefore, the distance between the needle valve 10 and the communicating pipe 30 is closer, the breaking moment of the connecting sleeve 20 is higher, the requirement on the use strength is more easily met, the needle valve 10 and the communicating pipe 30 are not easy to break, and the connection stability between the needle valve 10 and the communicating pipe 30 is good. Specifically, the axial length of the connecting sleeve 20 may take the value of 7mm, 8mm, 9mm, etc. Of course, the connection sleeve 20 may be formed in other shapes that can be connected to the needle valve 10 and the communication pipe 30, such as a rectangular tube shape, as the case may be.
As shown in fig. 1, the needle valve 10 has a valve seat 11, along the axial direction of the connecting sleeve 20, a part of the valve seat 11 is located in the connecting sleeve 20, a pipe portion 111 is formed at the part of the valve seat 11 located in the connecting sleeve 20, the pipe portion 111 is welded and fixed with the connecting sleeve 20, that is, the connecting sleeve 20 is sleeved on the outer wall of the pipe portion 111, so that the connecting sleeve 20 can be provided with a larger diameter compared with the inner wall inscribed on the pipe portion 111, the breaking moment of the connecting sleeve 20 is improved, the breakage is not easy to break, and the vibration resistance is better.
The step surface 12 is arranged on the valve seat 11, the step surface 12 is positioned above the pipe part 111, and when the valve seat 11 is assembled with the connecting sleeve 20, the connecting sleeve 20 can abut against the step surface 12 so as to limit the valve seat 11 along the axial direction of the connecting sleeve 20, and the assembly and welding between the valve seat 11 and the connecting sleeve 20 are facilitated.
The inner wall of the connecting sleeve 20 and the outer wall of the pipe portion 111 of the valve seat 11 are abutted against each other, and a first welding portion 21 is formed at the abutted portion, and the first welding portion 21 is substantially cylindrical. By setting the axial length of the first welding portion 21 to be greater than 4mm, a sufficient welding depth is ensured, and the connecting sleeve 20 and the pipe portion 111 are stably connected, so that the welding strength between the needle valve 10 and the connecting sleeve 20 satisfies the use requirement. Specifically, the axial length of the first welding portion 21 may be 5mm, 6mm, 7mm, or the like.
The other end of the connecting sleeve 20 is overlapped with a flanging hole 31 formed in the pipe wall of the communicating pipe 30, and the flanging hole 31 is approximately cylindrical, so that the flanging hole 31 can be matched with the cylindrical structure of the connecting sleeve 20 for installation. The outer wall of the connecting sleeve 20 and the inner wall of the flanging hole 31 are partially abutted against each other to form a second welding part 22. The second welding portion 22 is cylindrical and has an axial length greater than 2mm. Specifically, the axial length of the second welding portion 22 may be 3mm, 4mm, 5mm, or the like. The axial length of the second welding part 22 between the connecting sleeve 20 and the flanging hole 31 is set to meet the set value, so that the welding strength between the connecting sleeve 20 and the communicating pipe 30 meets the use requirement.
Further, the melting point of the solder at the first soldering portion 21 is lower than that of the solder at the second soldering portion 22, so that the first soldering portion 21 and the second soldering portion 22 are adapted to different soldering modes. The second welding part 22 is welded in a furnace, the inner wall of the flanging hole 31 and the outer wall of the connecting sleeve 20 are welded and fixed, and then the first welding part 21 is welded with flame, and the outer wall of the pipe part 111 and the inner wall of the connecting sleeve 20 are welded and fixed, so that the fixed lap joint of the connecting sleeve 20 between the needle valve 10 and the communicating pipe 30 is realized.
In one embodiment, a plane is defined, which is perpendicular to the axis of the communicating tube 30, and along the axial direction of the communicating tube 30, the projection of the wall of the tube portion 111 on the valve seat 11 on the plane overlaps with the projection of the wall 311 of the burring hole 31 on the plane. That is, along the axial direction of the connecting sleeve 20, the orifice edge of the pipe portion 111 is lower than the orifice edge of the flanging hole 31, so that the pipe wall of the pipe portion 111 and the hole wall 311 of the flanging hole 31 are partially overlapped on two sides of the connecting sleeve 20, the overall wall thickness of the overlapped part is increased, the breaking moment is increased, the overall connection strength of the connecting sleeve 20 is increased, and the needle valve 10 is not easily twisted.
Of course, as other embodiments, the projection of the wall of the pipe portion 111 and the projection of the hole wall 311 may be disposed without overlapping, for example, in an embodiment, a plane is defined, which is perpendicular to the axis of the communicating tube 30, and a preset gap (not shown) is formed between the projection of the edge of the pipe opening of the pipe portion 111 on the plane and the projection of the edge of the hole opening of the flanging hole 31 on the plane along the axial direction of the communicating tube 30, and the distance of the preset gap is less than or equal to 3mm. That is, the mouth edge of the tube portion 111 is not higher than the mouth edge of the burring hole 31 by 3mm in the axial direction of the connecting sleeve 20, avoiding breakage of the connecting sleeve 20 due to insufficient strength. Specifically, the distance value of the preset gap may be 1mm, 2mm, 3mm, etc.
The end face of the connecting sleeve 20 far away from the needle valve 10 is defined as a lower end face along the axial direction of the connecting sleeve 20, the bottom end face (namely, the free end face) of the pipe portion 111 is flush with the lower end face of the connecting sleeve 20, and the flush arrangement enables the overlap depth between the connecting sleeve 20 and the needle valve 10 to be deeper, so that the connection stability between the needle valve 10 and the connecting sleeve 20 is improved.
To sum up, the needle valve connection structure 100 claimed in the application improves the connection structure of the valve pipe commonly used in the existing pipeline system, sets up adapter sleeve 20 overlap joint between needle valve 10 and communicating pipe 30, and the axial length of adapter sleeve 20 is shorter, and the diameter is bigger, has improved the joint strength between needle valve 10 and communicating pipe 30, and the destruction moment of adapter sleeve 20 is higher, and needle valve 10 is difficult to twist off, and adapter sleeve 20 is also difficult to fracture even under the state of compressor work, more resistant vibration.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.
Claims (12)
1. The needle valve connecting structure is characterized by comprising a needle valve (10), a connecting sleeve (20) and a communicating pipe (30), wherein a flanging hole (31) is formed in the communicating pipe (30), and the connecting sleeve (20) is fixed onto the communicating pipe (30) through welding between a hole wall (311) of the flanging hole (31) and the connecting sleeve (20); one end, far away from the flanging hole (31), of the connecting sleeve (20) is welded and fixed with the needle valve (10);
wherein the axial length of the connecting sleeve (20) is smaller than 25mm.
2. Needle valve connection structure according to claim 1, characterized in that the needle valve (10) is a brass needle valve, the connection sleeve (20) is a red copper sleeve, the communication tube (30) is a stainless steel tube, and the axial length of the connection sleeve (20) is smaller than 10mm.
3. Needle valve connection structure according to claim 1 or 2, characterized in that the needle valve (10) has a valve seat (11), a part of the valve seat (11) is located in the nipple (20) along the axial direction of the nipple (20), a part of the valve seat (11) located in the nipple (20) forms a tube part (111), and the tube part (111) is welded and fixed with the nipple (20).
4. A needle valve connecting structure according to claim 3, characterized in that a plane is defined, which is perpendicular to the axis of the communicating pipe (30), and along the axial direction of the communicating pipe (30), the projection of the pipe portion (111) on the plane is arranged overlapping the projection of the hole wall (311) of the burring hole (31) on the plane.
5. Needle valve connection according to claim 4, characterized in that the end face of the tube part (111) is arranged flush with the lower end face of the connection sleeve (20) in the axial direction of the connection sleeve (20).
6. A needle valve connecting structure according to claim 3, characterized in that a plane is defined, which is perpendicular to the axis of the communicating pipe (30), and a preset gap is formed between the projection of the orifice edge of the pipe portion (111) on the plane and the projection of the orifice edge of the burring hole (31) on the plane along the axial direction of the communicating pipe (30), the distance of the preset gap being 3mm or less.
7. A needle valve connection structure according to claim 3, characterized in that the valve seat (11) has a step surface (12), the step surface (12) being located above the pipe portion (111), the step surface (12) being capable of abutting against the connection sleeve (20) to axially limit the valve seat (11) to the connection sleeve (20).
8. A needle valve connecting structure according to claim 3, characterized in that a first welding portion (21) is formed between the connecting sleeve (20) and the valve seat (11), the axial length of the first welding portion (21) being greater than 4mm.
9. Needle valve connection according to any of claims 4-7, characterized in that a first weld (21) is formed between the adapter sleeve (20) and the valve seat (11), the axial length of the first weld (21) being greater than 4mm.
10. Needle valve connecting structure according to claim 8, characterized in that a second welding part (22) is formed between the connecting sleeve (20) and the hole wall (311) of the flanging hole (31), and the axial length of the second welding part (22) is larger than 2mm.
11. Needle valve connecting structure according to claim 9, characterized in that a second welding part (22) is formed between the connecting sleeve (20) and the hole wall (311) of the flanging hole (31), and the axial length of the second welding part (22) is larger than 2mm.
12. Needle valve connection according to claim 10 or 11, characterized in that the melting point of the solder at the first soldering site (21) is lower than the melting point of the solder at the second soldering site (22).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837892.3U CN219139966U (en) | 2022-10-26 | 2022-10-26 | Needle valve connecting structure |
| PCT/CN2023/124127 WO2024088067A1 (en) | 2022-10-26 | 2023-10-12 | Needle valve connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222837892.3U CN219139966U (en) | 2022-10-26 | 2022-10-26 | Needle valve connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219139966U true CN219139966U (en) | 2023-06-06 |
Family
ID=86560156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222837892.3U Active CN219139966U (en) | 2022-10-26 | 2022-10-26 | Needle valve connecting structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219139966U (en) |
| WO (1) | WO2024088067A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024088067A1 (en) * | 2022-10-26 | 2024-05-02 | 浙江盾安人工环境股份有限公司 | Needle valve connecting structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020023207A (en) * | 2001-12-31 | 2002-03-28 | 곽영대 | The divergence valve |
| CN201803538U (en) * | 2010-09-15 | 2011-04-20 | 天津华信机械有限公司 | Needle valve connection structure in air conditioner pipe assembly |
| CN103174860B (en) * | 2011-12-22 | 2015-09-09 | 浙江三花股份有限公司 | The fixed structure of a kind of adapter and valve seat |
| CN216158525U (en) * | 2021-09-22 | 2022-04-01 | 浙江盾安人工环境股份有限公司 | Connecting pipe assembly and control valve assembly with same |
| CN216592349U (en) * | 2021-12-31 | 2022-05-24 | 广东美的暖通设备有限公司 | Pipeline device and refrigerating system with same |
| CN217058040U (en) * | 2022-02-16 | 2022-07-26 | 广东美的暖通设备有限公司 | Pipeline device and refrigerating system with same |
| CN219139966U (en) * | 2022-10-26 | 2023-06-06 | 浙江盾安禾田金属有限公司 | Needle valve connecting structure |
-
2022
- 2022-10-26 CN CN202222837892.3U patent/CN219139966U/en active Active
-
2023
- 2023-10-12 WO PCT/CN2023/124127 patent/WO2024088067A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024088067A1 (en) * | 2022-10-26 | 2024-05-02 | 浙江盾安人工环境股份有限公司 | Needle valve connecting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024088067A1 (en) | 2024-05-02 |
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