CN219755616U - Pipe fitting joint, filter and air conditioner - Google Patents
Pipe fitting joint, filter and air conditioner Download PDFInfo
- Publication number
- CN219755616U CN219755616U CN202321015702.8U CN202321015702U CN219755616U CN 219755616 U CN219755616 U CN 219755616U CN 202321015702 U CN202321015702 U CN 202321015702U CN 219755616 U CN219755616 U CN 219755616U
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- pipe
- filter
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- straight
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- 230000008093 supporting effect Effects 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 abstract description 21
- 210000001503 joint Anatomy 0.000 abstract description 10
- 238000003466 welding Methods 0.000 abstract description 8
- 239000003507 refrigerant Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002274 desiccant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Abstract
The utility model relates to the technical field of pipeline connection, and provides a pipe fitting joint, a filter and an air conditioner. When the sub-pipe is inserted into the straight pipe section, the end face of the sub-pipe is abutted with the annular supporting surface, so that the situation that the sub-pipe and the straight pipe section are inclined relatively can be avoided, and the welding quality and the butt joint precision of the sub-pipe and the pipe fitting joint are improved. When the sub-pipe is inserted into the straight pipe section, the inner wall of the sub-pipe is kept flush with the top of the first annular bulge, and liquid can smoothly flow into the straight pipe section along the first annular bulge or flow through the first annular bulge along the straight pipe section, so that the flow resistance of the liquid is reduced.
Description
Technical Field
The utility model relates to the technical field of pipeline connection, in particular to a pipe fitting joint, a filter and an air conditioner.
Background
The pipeline connecting device is an important device in pipeline connection, has strict requirements on tightness, pipeline error compensation and the like, the application effect of a pipeline is directly affected by the structure and performance of the pipeline connecting device, and the connection between straight pipes generally adopts flanges and pipeline connectors. In the related art, a filter is arranged in an air conditioner, the filter needs to be connected with a pipeline of a refrigerant circulation loop, in order to limit the plugging length of straight pipes, a punctiform groove is arranged on a pipe fitting joint to limit the plugging length of the straight pipes, however, the punctiform groove is difficult to ensure that two straight pipes are kept parallel when being positioned, and further, the pipeline is inclined when being connected, so that the welding quality of the pipeline is affected.
Disclosure of Invention
The present utility model is directed to solving at least one of the technical problems existing in the related art. Therefore, the utility model provides a pipe fitting joint, wherein a first annular bulge is formed on the inner wall of a straight pipe section, an annular supporting surface is formed on one side of the first annular bulge, which faces to the end part of the straight pipe section, and the central axis of the annular supporting surface and the central axis of the pipe shaft of the straight pipe section are positioned on the same straight line; when the sub-pipe is inserted into the straight pipe section, the end face of the sub-pipe is abutted against the annular supporting surface, so that the sub-pipe and the straight pipe section are prevented from being inclined relatively, and the welding quality and the butt joint precision between the sub-pipe and the pipe fitting joint are improved. Meanwhile, the height of the first annular bulge relative to the inner wall of the straight pipe section is matched with the wall thickness of the sub-pipe to be spliced, so that the resistance of the refrigerant in flowing is reduced.
The utility model also provides a filter.
The utility model also provides an air conditioner.
According to an embodiment of the first aspect of the present utility model, there is provided a pipe fitting joint comprising:
the pipe wall of the straight pipe section is provided with a first annular concave, a first annular bulge is formed on the inner wall of the straight pipe section, an annular supporting surface is formed on one side of the first annular bulge, which faces the end part of the straight pipe section, and the central axis of the annular supporting surface and the central axis of the pipe shaft of the straight pipe section are positioned on the same straight line;
the height of the first annular bulge relative to the inner wall of the straight pipe section is adapted to the wall thickness of the sub-pipe to be spliced.
According to one embodiment of the utility model, the distance between the annular support surface and the end of the straight tube segment is greater than or equal to a first length.
According to one embodiment of the utility model, the annular supporting surface is matched with the shape and the size of the end face of the sub-pipe, and the annular supporting surface is in fit connection with the end face of the sub-pipe.
According to one embodiment of the utility model, the inner wall of the straight tube section is in interference fit with the outer wall of the sub-tube.
According to a second aspect of the utility model, the filter comprises a filter body and at least one pipe fitting joint provided according to the first aspect of the utility model, wherein a filter cavity is formed in the filter body, the pipe fitting joint is connected to the filter body, and the straight pipe section is communicated with the filter cavity.
According to one embodiment of the utility model, the shell of the filter body is provided with at least one second annular recess, and a second annular protrusion is formed on the inner wall of the shell and used for positioning the filter screen in the filter cavity.
According to one embodiment of the utility model, the side surface of the first annular protrusion, which is close to the filter cavity, is smoothly connected with the filter cavity.
According to one embodiment of the utility model, the filter comprises two pipe joints, which are symmetrically arranged with respect to the filter body and which lie on the same straight line.
According to one embodiment of the utility model, the filter body is integrally formed with the tube fitting.
An embodiment according to a third aspect of the present utility model provides an air conditioner comprising a pipe fitting joint according to an embodiment of the first aspect of the present utility model, or a filter according to an embodiment of the second aspect of the present utility model.
The above technical solutions in the present utility model have at least one of the following technical effects:
according to the pipe fitting joint provided by the embodiment of the utility model, the pipe fitting joint comprises a straight pipe section with two through ends, the pipe wall of the straight pipe section is provided with a first annular concave, the first annular concave is provided with a first annular bulge at the inner wall of the straight pipe section, one side of the first annular bulge, which faces the end part of the straight pipe section, is provided with an annular supporting surface, and the central axis of the annular supporting surface and the central axis of the pipe shaft of the straight pipe section are positioned on the same straight line. When the sub-pipe is inserted into the straight pipe section, the end face of the sub-pipe is abutted against the annular supporting surface, and the end face of the sub-pipe is matched with the annular supporting surface, so that the end face of the sub-pipe is uniformly stressed, the situation that the sub-pipe and the straight pipe section are inclined relatively is avoided, the welding quality of the sub-pipe and the pipe fitting joint can be improved, and the positioning accuracy of the sub-pipe and the pipe fitting joint is improved. Meanwhile, the height of the first annular bulge relative to the inner wall of the straight pipe section is matched with the wall thickness of the sub pipe to be spliced, when the sub pipe is spliced into the straight pipe section, the end face of the sub pipe is abutted against the first annular bulge, and at the moment, the inner wall of the sub pipe is kept flush with the top of the first annular bulge, so that liquid can smoothly flow into the straight pipe section along the first annular bulge or flow through the first annular bulge along the straight pipe section, the flow resistance of the liquid is reduced, and the flow efficiency of the liquid is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic block diagram of a prior art filter;
FIG. 2 is a cross-sectional view of a pipe fitting joint and a filter according to an embodiment of the present utility model;
fig. 3 is a front view of a pipe fitting joint and a filter according to an embodiment of the present utility model.
Reference numerals:
10. a filter body; 11. a filter chamber; 12. a second annular recess; 13. a second annular projection; 14. a filter screen;
20. a pipe fitting joint; 21. a straight pipe section; 211. a first annular recess; 212. a first annular projection; 213. an annular support surface; 214. the end of the straight pipe section; 200. punctiform recess.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without making any inventive effort are intended to be within the scope of the utility model.
In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.
In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact 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 level higher 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 below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
In the related art, a filter is disposed in the air conditioner, the filter needs to be connected with a pipeline of a refrigerant circulation loop, in order to limit the plugging length of a straight pipe, a punctiform groove 200 is disposed on a pipe fitting joint to limit the plugging length of the straight pipe, please refer to fig. 1, however, the punctiform groove 200 is difficult to ensure that a main pipe and a sub-pipe are kept parallel during positioning, namely, the punctiform groove 200 forms punctiform protrusions on the inner wall of the straight pipe, the isolated protrusions can limit the position of one side of the sub-pipe, but the opposite side of the inner wall of the straight pipe is not limited by the punctiform protrusions, the sub-pipe can still move, so that the sub-pipe can incline to one side relative to the straight pipe, at the moment, the spacing between the sub-pipe and one side of the straight pipe is larger, the spacing between the other side is smaller, and the welding quality of the pipeline and the butt joint precision of the pipeline can be affected.
According to the pipe fitting joint 20 provided by the embodiment of the first aspect of the present utility model, the pipe fitting joint 20 at least includes a straight pipe section 21 with two ends penetrating, and a first annular recess 211 is formed on the pipe wall of the straight pipe section 21. Since the pipe wall thickness of the straight pipe section 21 is determined, when the first annular recess 211 is formed by extrusion, the inner wall of the straight pipe section 21 protrudes toward the central axis of the pipe to form the first annular protrusion 212, and the side of the first annular protrusion 212 facing the end of the straight pipe section 21 is formed with the annular supporting surface 213, see fig. 2. It should be noted that, one end of the straight tube section 21 is fixedly connected to other components, such as the filter body 10 or other pipelines, the other end of the straight tube section 21 is a free end, and the end of the straight tube section 21 is a free end.
In the embodiment of the present utility model, the joint between the annular supporting surface 213 and the inner wall of the straight pipe section 21 forms an annular edge, and the plane of the annular edge is perpendicular to the central axis of the straight pipe section 21. The central axis of the annular support surface 213, i.e. the axis passing through the center of rotation of the annular support surface 213, is aligned with the central axis of the pipe of the straight pipe section 21. When the sub-pipe is inserted into the straight pipe section 21, the end face of the first annular protrusion 212 of the sub Guan Chaoxiang abuts against the annular supporting surface 213 of the first annular protrusion 212, the supporting effect of the annular supporting surface 213 on the end face of the sub-pipe at each position is the same, the relative inclination of the sub-pipe and the straight pipe section 21 can be avoided, the sub-pipe and the straight pipe section 21 can be kept in the same direction, the welding quality of the sub-pipe and the pipe fitting joint 20 can be improved, and the abutting precision of the pipe fitting joint 20 and the sub-pipe is improved. The sub-pipe is a joint pipe section of a refrigerant circulation loop or other pipelines.
Meanwhile, the top of the first annular protrusion 212 facing the central axis of the straight pipe section 21 is the highest point of the first annular protrusion 212, and the distance between the highest point of the first annular protrusion 212 and the inner wall of the other part of the straight pipe section 21 is the height of the first annular protrusion 212. In the embodiment of the present utility model, the height of the first annular protrusion 212 relative to the inner wall of the straight pipe section 21 is adapted to the wall thickness of the sub-pipe to be inserted, when the sub-pipe is inserted into the straight pipe section 21, the inner wall of the sub-pipe is kept flush with the top of the first annular protrusion 212, and when the liquid flows through the first annular protrusion 212 along the sub-pipe or when the liquid flows into the sub-pipe along the first annular protrusion 212, the flowing resistance is smaller, so that the passing efficiency of the liquid is improved, and the driving resistance and the energy consumption of the system are reduced.
According to one embodiment of the utility model, the distance between the annular support surface 213 and the end 214 of the straight tube section is greater than or equal to the first length.
Referring to fig. 2, the connection between the annular supporting surface 213 and the inner wall of the straight pipe section 21 forms an annular edge, which is the deepest distance between the sub-pipe inserted into the straight pipe section 21, and is also the distance between the annular supporting surface 213 and the end 214 of the straight pipe section, and the distance is greater than or equal to a first length, for example, 10mm, so that the connection length between the sub-pipe and the straight pipe section 21 is not less than 10mm, and the stability of the pipeline connection is improved.
According to one embodiment of the present utility model, the annular supporting surface 213 is adapted to the shape and size of the end surface of the sub-pipe, and the annular supporting surface 213 is in fit connection with the end surface of the sub-pipe.
Referring to fig. 2, the annular supporting surface 213 is an arc surface, if the end surface of the sub-pipe is a plane, a triangular gap is formed between the plane and the arc surface, and the liquid forms turbulent motion therein, which breaks the laminar flow state of the liquid and increases the flow resistance of the liquid.
In this embodiment, the annular supporting surface 213 is matched with the shape and size of the end surface of the sub-pipe, and the annular supporting surface 213 is in fit connection with the end surface of the sub-pipe. Namely, the end surface of the sub-pipe forms a reverse arc-shaped surface structure, or the annular supporting surface 213 forms a plane structure, the annular supporting surface 213 is closely attached to the end surface of the sub-pipe, and no gap exists between the annular supporting surface 213 and the end surface of the sub-pipe, so that the interference to the liquid flow is reduced, and the liquid flow efficiency is improved.
According to one embodiment of the utility model, the inner wall of the straight tube section is an interference fit with the outer wall of the sub-tube.
It will be appreciated that in order to improve the tightness of the connection of the tubular fitting 20 to the sub-pipe, the inner wall of the straight pipe section is in an interference fit with the outer wall of the sub-pipe, for example, the diameter of the outer wall of the sub-pipe is equal to 100.1% of the diameter of the inner wall of the straight pipe section, so that the two can be tightly attached to each other to avoid leakage of liquid.
According to a second aspect of the present utility model there is provided a filter comprising a filter body 10 and at least one pipe fitting 20 according to the first aspect of the present utility model.
Referring to fig. 2 and 3, a filter chamber 11 is formed in the filter body 10, a pipe fitting 20 is connected to the filter body 10, and a straight pipe section 21 is connected to the filter chamber 11. Filter 14 is disposed in filter chamber 11, and liquid is filtered by filter 14 as it flows in or out along fitting 20.
In some embodiments, the filter is a dry filter, and the filter body 10 is formed by a rolling process, but only with the metallic filter mesh 14, and no desiccant. The device is arranged on a relevant part or a pipeline at the front end of a capillary tube of a refrigeration system or on the inlet and outlet ends of an electronic expansion valve, and is used for collecting solid impurities in the refrigeration system and lubricating oil, preventing the system, the capillary tube and the expansion valve from being blocked, and ensuring the smoothness of the pipeline system.
According to one embodiment of the utility model, the housing of the filter body 10 is provided with at least one second annular recess 12, the second annular recess 12 being formed with a second annular protrusion 13 on the inner wall of the housing, the second annular protrusion 13 being adapted to locate the filter mesh 14 in the filter cavity 11.
Referring to fig. 2 to 3, the housing of the filter body 10 is a metal tube, and the second annular protrusion 13 is formed on the inner wall of the housing by forming the second annular recess 12 on the housing of the filter body 10, so that the process is simple and the production efficiency is improved.
The number of second annular protrusions 13 may be one or more, one second annular protrusion 13 may prevent filter screen 14 from sliding downstream, and a plurality of second annular protrusions 13 may hold filter screen 14.
According to one embodiment of the present utility model, the first annular protrusion 212 is smoothly connected to the filter chamber 11 near the side of the filter chamber 11.
Referring to fig. 2, the first annular protrusion 212 protrudes toward the central axis of the straight pipe 21, two arc surfaces are formed on two sides of the first annular protrusion 212, and the side surface of the first annular protrusion 212 close to the filter cavity 11 is smoothly connected with the filter cavity 11, so that the liquid can smoothly flow into the filter cavity 11 along the first annular protrusion 212, and also can smoothly flow into the straight pipe 21 along the filter cavity 11 and through the first annular protrusion 212.
According to one embodiment of the utility model, the filter comprises two pipe joints 20, the two pipe joints 20 being symmetrically arranged with respect to the filter body 10, and the two pipe joints 20 being in the same line.
Referring to fig. 2 and 3, two pipe joints 20 are symmetrically disposed with respect to the filter body 10, and the two pipe joints 20 are located on the same straight line. After passing through filter 14, liquid from one of the tube fittings 20 can reach the other tube fitting directly, shortening the flow path of the liquid and reducing head loss.
According to one embodiment of the utility model, the filter body 10 is integrally formed with the pipe fitting 20.
Referring to fig. 2 and 3, the filter body 10 and the pipe fitting joint 20 are integrally formed, and the welding process is reduced and the production efficiency is improved by rolling and forming a pipe. And the first annular recess 211 and the second annular recess 12 are directly formed on the pipe material, so that the processing procedure is reduced.
An embodiment according to a third aspect of the present utility model provides an air conditioner comprising a pipe fitting joint according to an embodiment of the first aspect of the present utility model, or a filter according to an embodiment of the second aspect of the present utility model.
In the connection process of the refrigerant circulation loop of the air conditioner, the end part of the pipeline forms a sub-pipe to be spliced, when the sub-pipe is spliced into the straight pipe section 21, the end face of the first annular bulge 212 of the sub Guan Chaoxiang is abutted against the annular supporting surface 213 of the first annular bulge 212, the supporting effect of the annular supporting surface 213 on the end face of the sub-pipe at each position is the same, the relative inclination of the sub-pipe and the straight pipe section 21 can be avoided, the sub-pipe and the straight pipe section 21 can be kept in the same direction, the welding quality of the sub-pipe and the pipe fitting joint 20 can be improved, and the butt joint precision of the pipe fitting joint 20 and the sub-pipe is improved.
Meanwhile, the top position of the first annular protrusion 212 on the side facing the central axis of the pipe of the straight pipe section 21 is the highest point of the first annular protrusion 212, and the distance between the highest point of the first annular protrusion 212 and the inner wall of the other portion of the straight pipe section 21 is the height of the first annular protrusion 212. In the embodiment of the present utility model, the height of the first annular protrusion 212 relative to the inner wall of the straight pipe section 21 is adapted to the wall thickness of the sub-pipe to be inserted, when the sub-pipe is inserted into the straight pipe section 21, the inner part of the sub-pipe is kept flush with the top of the first annular protrusion 212, and when the liquid flows through the first annular protrusion 212 along the sub-pipe or when the liquid flows into the sub-pipe along the first annular protrusion 212, the flowing resistance is smaller, so that the passing efficiency of the liquid is improved, and the driving resistance and the energy consumption of the system are reduced.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A pipe fitting joint, comprising:
the pipe wall of the straight pipe section is provided with a first annular concave, a first annular bulge is formed on the inner wall of the straight pipe section, an annular supporting surface is formed on one side of the first annular bulge, which faces the end part of the straight pipe section, and the central axis of the annular supporting surface and the central axis of the pipe shaft of the straight pipe section are positioned on the same straight line;
the height of the first annular bulge relative to the inner wall of the straight pipe section is adapted to the wall thickness of the sub-pipe to be spliced.
2. A fitting according to claim 1, wherein the distance between the annular support surface and the end of the straight tube segment is greater than or equal to a first length.
3. A pipe fitting joint according to claim 1 or 2, wherein the annular support surface is adapted to the shape and size of the end face of the sub-pipe, and wherein the annular support surface is in abutting connection with the end face of the sub-pipe.
4. A pipe fitting joint according to claim 1 or 2, wherein the inner wall of the straight pipe section is an interference fit with the outer wall of the sub-pipe.
5. A filter comprising a filter body and at least one tube fitting as claimed in any one of claims 1 to 4, wherein a filter chamber is formed in the filter body, the tube fitting being connected to the filter body and the straight tube section being in communication with the filter chamber.
6. The filter of claim 5, wherein the housing of the filter body is provided with at least one second annular recess, the second annular recess being formed with a second annular protrusion on an inner wall of the housing, the second annular protrusion being for positioning a filter screen within the filter cavity.
7. The filter of claim 5, wherein the first annular projection is smoothly connected to the filter chamber proximate a side of the filter chamber.
8. The filter of claim 7, wherein the filter comprises two of the tube fittings symmetrically disposed with respect to the filter body and the two tube fittings are co-linear.
9. The filter of claim 5, wherein the filter body is integrally formed with the tube fitting.
10. An air conditioner comprising the pipe joint according to any one of claims 1 to 4 or the filter according to any one of claims 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321015702.8U CN219755616U (en) | 2023-04-28 | 2023-04-28 | Pipe fitting joint, filter and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321015702.8U CN219755616U (en) | 2023-04-28 | 2023-04-28 | Pipe fitting joint, filter and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219755616U true CN219755616U (en) | 2023-09-26 |
Family
ID=88085153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321015702.8U Active CN219755616U (en) | 2023-04-28 | 2023-04-28 | Pipe fitting joint, filter and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219755616U (en) |
-
2023
- 2023-04-28 CN CN202321015702.8U patent/CN219755616U/en active Active
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