CN214947206U - Pipe fitting connection structure and air conditioning equipment - Google Patents
Pipe fitting connection structure and air conditioning equipment Download PDFInfo
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- CN214947206U CN214947206U CN202022912518.6U CN202022912518U CN214947206U CN 214947206 U CN214947206 U CN 214947206U CN 202022912518 U CN202022912518 U CN 202022912518U CN 214947206 U CN214947206 U CN 214947206U
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Abstract
The utility model relates to a pipe fitting connection structure and air conditioning equipment, this pipe fitting connection structure is equipped with the through-hole including being responsible for and branch pipe on being responsible for, and the tip of branch pipe is equipped with the shirt rim, and the shirt rim is connected in through-hole department to make and be responsible for and the branch pipe intercommunication. And, the external diameter of branch pipe is E, and the shirt rim is along the axial protrusion in the length of branch pipe of being responsible for D, satisfies: d is more than or equal to E/5. The utility model provides a pipe fitting connection structure and air conditioning equipment sets up the shirt rim through the tip at the branch pipe, utilizes the shirt rim to increase the area of contact between branch pipe and the person in charge to effectively improve the firm in connection degree of branch pipe and person in charge. That is, the utility model provides a pipe fitting connection structure and air conditioning equipment has solved the insecure problem of air conditioning equipment's pipe connection among the prior art.
Description
Technical Field
The utility model relates to a pipeline structure technical field especially relates to a pipe fitting connection structure and air conditioning equipment.
Background
In air conditioning plants, connections between different pipelines are often involved. Particularly, when one end of the branch pipe is connected to the middle portion of the main pipe, it is a common practice to draw and turn up the connecting portion of the main pipe so that the connecting portion of the main pipe forms a connecting port with an edge protruding outward, insert the branch pipe into the connecting port of the main pipe, and finally weld the branch pipe and the main pipe together. However, during the operation of drawing and flanging the connecting portion of the main pipe, metal fatigue fracture is likely to occur at the connecting portion of the main pipe, and finally, the connection between the branch pipe and the main pipe is not firm.
SUMMERY OF THE UTILITY MODEL
In view of the above, a need exists for a pipe connection structure and an air conditioning apparatus, which solve the problem of unstable pipe connection of the air conditioning apparatus in the prior art.
The utility model provides a pipe connecting structure, which comprises a main pipe and a branch pipe, wherein the main pipe is provided with a through hole, the end part of the branch pipe is provided with a skirt edge, and the skirt edge is connected with the through hole so as to communicate the main pipe with the branch pipe; and, the external diameter of branch pipe is E, and the shirt rim is along the axial protrusion in the length of branch pipe of being responsible for D, satisfies: d is more than or equal to E/5.
In an embodiment of the present invention, D is not more than E/4. The length D of the skirt edge protruding out of the branch pipe along the axial direction of the main pipe is less than or equal to one fourth of the outer diameter E of the branch pipe, the maximum length of the skirt edge protruding out of the branch pipe along the axial direction of the main pipe is limited, and the length of the skirt edge protruding out of the branch pipe along the axial direction of the main pipe is guaranteed not to be too large, so that the processing difficulty of the skirt edge is reduced, and the welding difficulty of the skirt edge and the main pipe is reduced.
In an embodiment of the present invention, the skirt edge is attached to the outer side surface of the main pipe, the outer diameter of the main pipe is a, and the skirt edge is C along the axial thickness of the branch pipe, so as to satisfy: c is not less than (A-3mm)/2, wherein A is more than 3 mm. Because the skirt edge is attached to the outer side surface of the main pipe, the side of the skirt edge facing the main pipe is matched with the outer side surface of the main pipe, namely, the curvature radius of the curved surface of the side of the skirt edge facing the main pipe is equal to the outer diameter of the main pipe. The larger the thickness of the skirt in the axial direction of the branch pipe is, the larger the range of the outer side surface of the main pipe wrapped by the skirt is. Usually, the external diameter A of the main pipe is larger than 3mm, so that the setting C is larger than or equal to (A-3mm)/2, the skirt edge can be guaranteed to be firmly wrapped on the outer side face of the main pipe to the maximum extent, the firm connection degree of the skirt edge and the main pipe is improved, and the structural strength of the whole pipe fitting connection structure is improved.
In an embodiment of the present invention, C is less than or equal to A/2. So set up for the axial thickness of skirt border branch pipe can not be too big, promptly, the bending degree of shirt rim can not be too big, thereby reduced the processing degree of difficulty of shirt rim, promptly, reduced pipe connection structure's the processing degree of difficulty, practiced thrift pipe connection structure's manufacturing cost.
In an embodiment of the present invention, the aperture of the through hole is B, the outer diameter of the main tube is a, the thickness of the main tube wall is T, and the following requirements are satisfied: b is less than or equal to A-2T-1 mm. First, since the through-hole is provided on the main pipe, the aperture B of the through-hole cannot exceed the outer diameter a of the main pipe. Therefore, the aperture B of the through hole is set to satisfy that B is less than or equal to A-2T-1mm, the aperture of the through hole is favorably controlled within a reasonable range, and the structural stability of the main pipe is prevented from being influenced by overlarge aperture of the through hole.
In an embodiment of the present invention, B is greater than or equal to 6.35 mm. Generally, the aperture B of the common standard through hole is larger than 6.35mm, so that the standard production of the pipe fitting connecting structure is facilitated, and the production cost of the pipe fitting connecting structure is reduced.
In an embodiment of the present invention, the outer diameter of the main pipe is a, and the outer diameter of the branch pipe is E, satisfying: e is more than or equal to 6.35mm and less than or equal to 54 mm. The existing pipe connecting structure basically realizes standardized production, and the outer diameter A of a standard main pipe and the outer diameter E of a branch pipe both meet the following requirements: e is more than or equal to 6.35mm and less than or equal to 54 mm. Therefore, the arrangement is favorable for the standardized production of the pipe fitting connecting structure, and the production cost of the pipe fitting connecting structure is reduced.
In an embodiment of the present invention, the skirt is formed by punching the end of the branch pipe. The processing precision of punch forming is guaranteed by the mould, so the shirt rim that the mode of punch forming processed has the surface accuracy height and the rapid characteristics of shaping. The processing precision of the whole pipe fitting connecting structure is improved.
In an embodiment of the present invention, the branch pipe is a copper pipe, and the main pipe is a copper pipe. The copper material has higher ductility and better welding performance, so that the welding forming of the pipe connecting structure and the punch forming of the skirt are facilitated.
In an embodiment of the present invention, the branch pipe is a copper pipe, and the main pipe is a stainless steel pipe. Because the skirt is arranged on the branch pipe, the skirt is usually formed by punching, and therefore, the branch pipe is made of a copper pipe, which is beneficial to the processing and forming of the skirt. The stainless steel pipe has lower production cost, so that the main pipe is the stainless steel pipe, and the production cost of the pipe fitting connecting structure is favorably reduced.
In an embodiment of the present invention, the branch pipe is a stainless steel pipe, and the main pipe is a copper pipe. The main pipe is a copper pipe, which is beneficial to forming a through hole on the main pipe. And the branch pipe is a stainless steel pipe, which is beneficial to reducing the production cost of the whole pipe fitting connecting structure.
In an embodiment of the present invention, the branch pipe is a stainless steel pipe, and the main pipe is a stainless steel pipe. The stainless steel pipe has lower production cost, so the arrangement is favorable for reducing the production cost of the pipe fitting connecting structure.
The utility model also provides an air conditioning equipment, this air conditioning equipment include above arbitrary one embodiment pipe fitting connection structure.
The utility model provides a pipe fitting connection structure and air conditioning equipment sets up the shirt rim through the tip at the branch pipe, utilizes the shirt rim to increase the area of contact between branch pipe and the person in charge to effectively improve the firm in connection degree of branch pipe and person in charge. And the length D of the skirt edge protruding out of the branch pipe along the axial direction of the main pipe is more than or equal to one fifth of the outer diameter E of the branch pipe, so that the minimum length of the skirt edge protruding out of the branch pipe along the axial direction of the main pipe is limited, the length of the skirt edge protruding out of the branch pipe along the axial direction of the main pipe is ensured not to be too small, and the skirt edge is connected with the main pipe more firmly. That is, the utility model provides a pipe fitting connection structure and air conditioning equipment has solved the insecure problem of air conditioning equipment's pipe connection among the prior art.
Drawings
Fig. 1 is a schematic structural diagram of a main pipe according to an embodiment of the present invention;
fig. 2 is a front view of a pipe connection structure according to an embodiment of the present invention;
fig. 3 is a side view of a pipe connection structure according to an embodiment of the present invention.
Reference numerals: 1. a main pipe; 11. a through hole; 2. a branch pipe; 21. a skirt.
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. 1-3, the present invention provides a pipe connection structure, which includes a main pipe 1 and a branch pipe 2, wherein the main pipe 1 is provided with a through hole 11, the end of the branch pipe 2 is provided with a skirt 21, and the skirt 21 is connected to the through hole 11, so that the main pipe 1 is communicated with the branch pipe 2. And, the external diameter of branch pipe 2 is E, and the length that shirt rim 21 protruded in branch pipe 2 along the axial of being responsible for 1 is D, satisfies: d is more than or equal to E/5.
The utility model provides a pipe fitting connection structure sets up shirt rim 21 through the tip at branch pipe 2, utilizes shirt rim 21 to increase branch pipe 2 and be responsible for the area of contact between 1 to effectively improve branch pipe 2 and be responsible for the firm in connection degree of 1. In addition, the length D of the skirt 21 protruding out of the branch pipe 2 along the axial direction of the main pipe 1 is greater than or equal to one fifth of the outer diameter E of the branch pipe 2, so that the minimum length of the skirt 21 protruding out of the branch pipe 2 along the axial direction of the main pipe 1 is limited, the length of the skirt 21 protruding out of the branch pipe 2 along the axial direction of the main pipe 1 is ensured not to be too small, and the skirt 21 and the main pipe 1 are connected more firmly. It is worth explaining that the utility model discloses a shirt rim 21 and person in charge 1 are through welded fastening, and in welding process, scribble cream form solder on the shirt rim 21 of branch pipe 2, assemble shirt rim 21 and person in charge 1 together, then pack into the frock and weld.
In order to further explain the technical solution of the present invention, the following will explain in detail the processing procedure of the pipe connection structure of the present invention. The processing main pipe 1: cutting a main pipe 1 with a proper length, deburring and rounding off two ends of the main pipe 1, and punching a through hole 11 on the side wall of the main pipe 1; processing the branch pipe 2: cutting a branch pipe 2 with a proper length, deburring and rounding two ends of the branch pipe 2, and stamping the end part of the branch pipe 2 to form a skirt 21; assembling the main pipe 1 and the branch pipe 2: the skirt 21 is coated with cream solder and loaded into the tool, and spot welding is performed by an argon arc welding machine after the skirt 21 is aligned with the through hole 11 of the main tube 1.
The skirt 21 is formed by stamping the end of the branch pipe 2, that is, the skirt 21 is formed by stamping, wherein stamping refers to a method for processing and forming a stamping part with a required shape and size by applying external force to a material to be processed by a press and a die to generate plastic deformation or separation. The processing precision of the punch forming is ensured by the die, so the skirt 21 processed by the punch forming mode has the characteristics of high surface precision and rapid forming. The processing precision of the whole pipe fitting connecting structure is improved.
Further, as shown in FIGS. 2 and 3, D ≦ E/4. The length D of the skirt 21 protruding out of the branch pipe 2 along the axial direction of the main pipe 1 is less than or equal to one fourth of the outer diameter E of the branch pipe 2, the maximum length of the skirt 21 protruding out of the branch pipe 2 along the axial direction of the main pipe 1 is limited, the length of the skirt 21 protruding out of the branch pipe 2 along the axial direction of the main pipe 1 is guaranteed not to be too large, and therefore the machining difficulty of the skirt 21 is reduced, and the welding difficulty of the skirt 21 and the main pipe 1 is reduced.
In one embodiment, as shown in fig. 2 and 3, the main pipe 1 has an outer diameter a, the skirt 21 is attached to the outer side surface of the main pipe 1, and the skirt 21 has a thickness C in the axial direction of the branch pipe 2, so that: c is not less than (A-3mm)/2, wherein A is more than 3 mm. Since the skirt 21 is connected to the outer side surface of the main tube 1, the side of the skirt 21 facing the main tube 1 is adapted to the outer side surface of the main tube 1, that is, the radius of curvature of the curved surface of the skirt 21 facing the side of the main tube 1 is equal to the outer diameter of the main tube 1. The greater the thickness of the skirt 21 in the axial direction of the branch pipe 2, the greater the extent of the outer side surface of the main pipe 1 wrapped by the skirt 21. Usually, the outer diameter A of the main pipe 1 is larger than 3mm, so that the setting C is larger than or equal to (A-3mm)/2, the skirt 21 can be ensured to firmly wrap the outer side surface of the main pipe 1 to the maximum extent, the connecting firmness degree of the skirt 21 and the main pipe 1 is improved, and the structural strength of the whole pipe connecting structure is improved.
Further, as shown in FIGS. 2 and 3, C ≦ A/2. So set up for shirt rim 21 is not too big along the axial thickness of branch pipe 2, and is promptly, the bending degree of shirt rim 21 is not too big, thereby has reduced shirt rim 21's the processing degree of difficulty, and is promptly, has reduced pipe fitting connection structure's the processing degree of difficulty, has practiced thrift pipe fitting connection structure's manufacturing cost.
In one embodiment, as shown in fig. 3, the aperture of the through hole 11 is B, the outer diameter of the main pipe 1 is a, and the wall thickness of the main pipe 1 is T, which satisfy: b is less than or equal to A-2T-1 mm. First, since the through-hole 11 is provided on the main pipe 1, the aperture B of the through-hole 11 cannot exceed the outer diameter a of the main pipe 1. Therefore, the aperture B of the through hole 11 is set to satisfy that B is less than or equal to A-2T-1mm, which is beneficial to controlling the aperture of the through hole 11 in a reasonable range and preventing the structural stability of the main pipe 1 from being influenced by the overlarge aperture of the through hole 11.
Further, as shown in FIG. 3, B.gtoreq.6.35 mm. Generally, the aperture B of the through hole 11 of the common standard is larger than 6.35mm, so that the arrangement is favorable for the standardized production of the pipe fitting connecting structure, and the production cost of the pipe fitting connecting structure is reduced.
In one embodiment, as shown in fig. 1-3, the main pipe 1 has an outer diameter a and the branch pipe 2 has an outer diameter E, which satisfies: e is more than or equal to 6.35mm and less than or equal to 54 mm. The existing pipe connection structure basically realizes standardized production, and the outer diameter A of the standard main pipe 1 and the outer diameter E of the branch pipe 2 meet the following requirements: e is more than or equal to 6.35mm and less than or equal to 54 mm. Therefore, the arrangement is favorable for the standardized production of the pipe fitting connecting structure, and the production cost of the pipe fitting connecting structure is reduced.
In one embodiment, the branch pipe 2 is a copper pipe and the main pipe 1 is a copper pipe. The copper material has higher ductility and better welding performance, so that the arrangement is favorable for the welding forming of the pipe connecting structure and the punch forming of the skirt 21.
In another embodiment, the branch pipe 2 is a copper pipe and the main pipe 1 is a stainless steel pipe. Since the skirt 21 is provided on the branch pipe 2, the skirt 21 is usually formed by press molding, and therefore, the branch pipe 2 is formed of a copper pipe, which facilitates the processing and forming of the skirt 21. The stainless steel pipe has lower production cost, so that the main pipe 1 is the stainless steel pipe, and the production cost of the pipe fitting connecting structure is favorably reduced.
In yet another embodiment, the branch pipe 2 is a stainless steel pipe and the main pipe 1 is a copper pipe. The main pipe 1 is a copper pipe, and a through hole 11 is formed in the main pipe 1. And the branch pipe 2 is a stainless steel pipe, which is beneficial to reducing the production cost of the whole pipe fitting connecting structure.
In yet another embodiment, the branch pipes 2 are stainless steel pipes and the main pipe 1 is a stainless steel pipe. The stainless steel pipe has lower production cost, so the arrangement is favorable for reducing the production cost of the pipe fitting connecting structure.
The utility model also provides an air conditioning equipment, this air conditioning equipment include above arbitrary one embodiment pipe fitting connection structure.
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 (10)
1. The pipe connecting structure is characterized by comprising a main pipe (1) and a branch pipe (2), wherein a through hole (11) is formed in the main pipe (1), a skirt edge (21) is arranged at the end part of the branch pipe (2), and the skirt edge (21) is connected to the through hole (11) so that the main pipe (1) is communicated with the branch pipe (2); and the outer diameter of the branch pipe (2) is E, the length of the skirt edge (21) protruding out of the branch pipe (2) along the axial direction of the main pipe (1) is D, and the requirements are met: d is more than or equal to E/5.
2. The pipe connecting structure according to claim 1, wherein D.ltoreq.E/4.
3. A pipe connecting structure according to claim 1, wherein the skirt (21) is attached to an outer side surface of the main pipe (1), an outer diameter of the main pipe (1) is a, and a thickness of the skirt (21) in an axial direction of the branch pipe (2) is C, so that: c is not less than (A-3mm)/2, wherein A is more than 3 mm.
4. A pipe connecting structure according to claim 3, wherein C ≦ a/2.
5. A pipe connecting structure according to claim 1, wherein the bore diameter of the through hole (11) is B, the outer diameter of the main pipe (1) is a, the wall thickness of the main pipe (1) is T, and the following are satisfied: b is less than or equal to A-2T-1 mm.
6. A tubular connecting structure according to claim 5, characterized in that B.gtoreq.6.35 mm.
7. A tubular connection according to claim 1, characterized in that the main tube (1) has an external diameter a, satisfying: e is more than or equal to 6.35mm and less than or equal to 54 mm.
8. A tubular connection according to claim 1, characterized in that the ends of the branch tubes (2) are stamped to form the skirts (21).
9. A pipe connection according to claim 1, wherein the branch pipe (2) is a copper pipe or a stainless steel pipe, and the main pipe (1) is a copper pipe or a stainless steel pipe.
10. An air conditioning apparatus, characterized by comprising the pipe connecting structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022912518.6U CN214947206U (en) | 2020-12-07 | 2020-12-07 | Pipe fitting connection structure and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022912518.6U CN214947206U (en) | 2020-12-07 | 2020-12-07 | Pipe fitting connection structure and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214947206U true CN214947206U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022912518.6U Active CN214947206U (en) | 2020-12-07 | 2020-12-07 | Pipe fitting connection structure and air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214947206U (en) |
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2020
- 2020-12-07 CN CN202022912518.6U patent/CN214947206U/en active Active
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