CN215568597U - Pipe joint for air conditioner, air conditioner pipeline and air conditioner - Google Patents
Pipe joint for air conditioner, air conditioner pipeline and air conditioner Download PDFInfo
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- CN215568597U CN215568597U CN202121070947.1U CN202121070947U CN215568597U CN 215568597 U CN215568597 U CN 215568597U CN 202121070947 U CN202121070947 U CN 202121070947U CN 215568597 U CN215568597 U CN 215568597U
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Abstract
The utility model relates to an air conditioning technology provides idle call coupling, air conditioner pipeline and air conditioner, and idle call coupling includes the first end and the second end at body and body both ends, wherein the first end is including assembly connecting portion, assembly connecting portion are used for passing through assembly mode fixed connection with first pipe, the second end include by the outside sleeve pipe that extends of body, the sleeve pipe is used for assembling back welded connection with the second pipe box. The pipe joint is mainly characterized in that one end of the pipe joint is fixedly connected with an inner pipe, the other end of the pipe joint is assembled and connected with a connecting pipe, and the fixed connection position is connected with the connecting pipe after the connecting pipe is sleeved and connected with the sleeve. The pipe wall of so interior piping and sheathed tube is the parallel almost, can weld two pipe fittings that the wall thickness is close between two parallel surfaces, not only shortens welding heating time, improves solder mobility simultaneously, and it is even to be heated the melting distribution.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a pipe joint for an air conditioner, an air conditioner pipeline and an air conditioner.
Background
In the household appliance industry, the indoor unit of a household air conditioner is connected with an outdoor unit, and generally, a connecting pipe nut and a pipe joint are matched to connect an evaporator and an outdoor unit pipe. In the conventional universal pipe joint for air conditioners, the pipe is generally welded by adopting a hexagonal end internal pipe distribution mode. Due to the limitation of the structure, the welded end of the pipe joint has a large thickness, so that the problems of uneven heating, poor solder distribution, abnormal internal penetration and the like are caused when the temperature of the pipe joint part reaches the welding temperature point after the temperature of the pipe joint part reaches the temperature first and the temperature of the internal piping does not reach the welding temperature point easily both in flame brazing and induction high-frequency welding.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
The application provides an idle call coupling, air conditioner pipeline and air conditioner to solve the not good problem of idle call coupling seal reliability.
In a first aspect, the application provides a pipe joint for air conditioner, first end and second end including body and body both ends, wherein first end includes assembly connection portion, assembly connection portion are used for passing through assembly methods fixed connection with first pipe, the second end include by the outside sleeve pipe that extends of body, the sleeve pipe is used for wrapping up the back welded connection of equipment with the second pipe.
According to the embodiment of the application, the inner part of the sleeve is provided with the welding surface, and the second pipe is arranged in the sleeve and then is welded and fixed with the inner wall of the sleeve.
According to the embodiment of the application, the first end comprises an end surface inner cavity, and the end surface inner cavity is communicated with the inner cavity of the sleeve through a communication channel penetrating through the body.
According to the embodiment of the application, the end part of the inner wall of the outer end of the first end is provided with a first guide groove in a bell mouth shape, so that a sealing ring outside the first pipe can be pressed and sealed.
According to this application embodiment, the body includes the chucking portion, the chucking portion supplies the spanner instrument chucking to drive.
According to the embodiment of the application, the sleeve is arranged coaxially with the body, and/or
The sleeve is disposed coaxially with the second end.
According to the embodiment of the application, the end part of the inner wall of the outer end of the sleeve is provided with a second chamfer so as to form a groove between the sleeve and the outer wall surface of the second pipe.
According to an embodiment of the application, the wall thickness of the sleeve is greater than 1 mm.
In a second aspect, the present application provides an air conditioning pipeline, including a first pipe, a second pipe, and a pipe joint between the first pipe and the second pipe for connecting the first pipe and the second pipe, wherein the pipe joint is the aforementioned air conditioning pipe joint.
According to this application embodiment, first pipe with the material of second pipe is different, the material of second pipe and the material of coupling the same.
In a third aspect, the present application provides an air conditioner comprising an air conditioning pipe joint as described above, or an air conditioning duct as described above.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the pipe joint for the air conditioner provided by the embodiment of the application is mainly characterized in that one end of the pipe joint is fixedly connected with an inner pipe, the other end of the pipe joint is in assembly connection with a connecting pipe, the fixed connection position is connected with the connecting pipe after the connecting pipe is sleeved with a sleeve, the sleeve can be used for sleeving the inner pipe in the sleeve, the inner pipe can be sleeved outside the sleeve, and the inner pipe can be welded in the sleeve to have the advantage of being more convenient to seal. The pipe wall of so interior piping and sheathed tube is the parallel almost, can weld two pipe fittings that the wall thickness is close between two parallel surfaces, not only shortens welding heating time, improves solder mobility simultaneously, and it is even to be heated the melting distribution.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic side view of a pipe joint for an air conditioner according to an embodiment of the present application.
Fig. 2 is a partially enlarged schematic structural diagram of the air conditioning pipe joint a shown in fig. 1 according to the embodiment of the present application.
Fig. 3 is a schematic side view of a pipe joint for an air conditioner according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a use state of the air conditioning pipe joint according to the embodiment of the present application.
Description of the drawings:
a body 1; a communication passage 11;
a chucking section 13;
a first end 2; the fitting connection portion 21;
an end face cavity 22; a step portion 23;
a first chamfer 25; a limit step 26;
a second end 3; a sleeve 31;
a welding face 32; second corner cut 35
The first tube 4 has a convex ring 41;
the second tube 5 is pressed against the nut 7.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application are within the scope of the present application without inventive efforts, and therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention but only to represent selected embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problem of the common structure of the pipe joint, the hexagonal end of the pipe joint needs to be welded and heated firstly during welding, the hexagonal end of the pipe joint is contacted with an inner pipe for heat transfer until the copper pipe reaches the welding temperature, and the whole welding process is realized by filling welding flux. The thickness of the hexagonal end of the pipe joint is large, the welding heating rate is slow, and the problems of uneven heating of the inner pipe, poor solder distribution and the like are easily caused.
The embodiment of the application can be regarded as providing a coupling for air conditioner, first end and second end including body and body both ends, wherein first end includes assembly connection portion, assembly connection portion are used for passing through assembly methods fixed connection with first pipe, the second end include by the outside sleeve pipe that extends of body, the sleeve pipe is used for assembling back welded connection with second pipe socket.
The embodiment that this application provided mainly is at this coupling one end and interior piping fixed connection, and the other end is with connecting pipe assembly connection, wherein fixed connection department, utilize the sleeve pipe to wait to connect the reconnection after the connecting pipe cup joints, wherein cup joint can be with interior piping cover in the sleeve, also can be with interior piping cover outside the sleeve, certainly have the advantage of being more convenient for sealed after welding interior piping cover in the sleeve. The pipe wall of so interior piping and sheathed tube is the parallel almost, can weld two pipe fittings that the wall thickness is close between two parallel surfaces, not only shortens welding heating time, improves solder mobility simultaneously, and it is even to be heated the melting distribution.
It is obvious to those skilled in the art that the pipe joint is not limited to the two connection ends described above, but may include more connection ends, and the technical idea of the present application may be applied as long as the connection ends are connected by welding, and the applied structure is not particularly limited. The welding can be flame brazing, induction high-frequency welding and other common pipeline welding modes.
To facilitate a more visual understanding of the technical idea of the present application for solving the technical problems, the following description of exemplary embodiments of the present application will be made with reference to the accompanying drawings:
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Fig. 1 is a schematic side view of an air conditioning pipe joint according to an embodiment of the present application, fig. 2 is a schematic partially enlarged view of the outside of an air conditioning pipe joint a according to the embodiment of the present application shown in fig. 1, and fig. 3 is a schematic side view of an air conditioning pipe joint according to an embodiment of the present application. In a first aspect, the application provides a pipe joint for air conditioner, mainly include body 1 and the first end 2 and the second end 3 at body 1 both ends, wherein first end 2 includes assembly connection portion 21, assembly connection portion 21 is used for passing through assembly mode fixed connection with first pipe 4, second end 3 include by body 1 outside extension's sleeve pipe 31, sleeve pipe 31 is used for cup jointing equipment back welded connection with second pipe 5. The embodiment of the application mainly comprises that one end of the pipe joint is fixedly connected with an inner pipe, the other end of the pipe joint is assembled and connected with a connecting pipe, wherein the fixed connection part is connected with the connecting pipe after the sleeve is sleeved with the connecting pipe to be connected, the sleeve can be used for sleeving the inner pipe in the sleeve 31, or sleeving the inner pipe outside the sleeve 31, and the sleeve has the advantage of being more convenient to seal after being welded in the sleeve 31. The inner tubing is almost parallel to the wall of the sleeve 31, and two pipes with close wall thickness can be welded between the two parallel surfaces, so that the welding heating time is shortened, the flowability of the welding flux is improved, and the distribution of the melting under heating is uniform.
Wherein it is obvious to a person skilled in the art that the first end 2 may be a connection end for facilitating detachable connection of the first tube 4 (connection tube), which together press-sealingly connects the first end 2 with the first tube 4 by means of the fitting connection 21 in cooperation with a suitable connection piece. As is common in the art, the assembly connecting portion 21 is an external thread portion outside the first end 2 of the body 1, and the adapted connecting member may be a compression nut 7 (see fig. 4), and the end portion of the first pipe 4 may have a convex ring 41 (see fig. 4), and one end of the compression nut 7 is screwed with the assembly connecting portion 21, and the other end of the compression nut may be sleeved outside the first pipe 4 and pressed outside the convex ring 41, so as to compress the first pipe 4 and the first end 2 through the convex ring 41, and the first pipe 4 and the first end 2 may be provided with a sealing ring 6 to facilitate sealing therebetween. Further, the end portion of the inner wall of the outer end of the first end 2 has a first chamfer 25, the first chamfer 25 may be a circular chamfer to form a bell mouth shape, and a limit step 26 may be provided at the root of the first chamfer 25, in one embodiment, the limit step 26 may be used to limit the end portion of the first pipe 4 to form a contact sealing surface between the limit step 26 and the end surface of the first pipe 4, and in another embodiment, the limit step 26 may be selected to be matched and pressed with the sealing ring 6 in an adaptive shape to achieve better sealing, and as the pressing nut 7 presses the first pipe 4 toward the inside of the first end 2, the sealing ring 6 may gradually press the sealing ring 6 by means of the bell mouth shape first chamfer 25, and after the sealing ring 6 is finally pressed into the limit step 26, the maximum sealing effect may be achieved.
Wherein the pipe joint can be made of brass, red copper or other common materials for air-conditioning pipelines. Of course, since the pipe joint requires a strong hardness, brass is more suitable for a material for the pipe joint in terms of hardness and cost performance. The sleeve 31 may have a welding surface 32 therein, and the second pipe 5 (typically, an inner pipe) is installed in the sleeve 31 and then welded to the inner wall of the sleeve 31. So that the inner pipe is pre-fixed by the coupling sleeve 31 and then is easily welded, thereby improving welding efficiency and accuracy. Further, the end part of the inner wall of the outer end of the sleeve 31 is provided with a second chamfer 35, so that on one hand, the second pipe 5 can be conveniently guided to be rapidly installed in the sleeve 31, and on the other hand, the second chamfer 35 can be used as a welding groove, so that a circle of groove welding is formed at the outer joint between the second pipe 5 and the sleeve 31.
In the embodiment of the present application, the first end 2 includes an end surface inner cavity 22, and the end surface inner cavity 22 is communicated with the inner cavity 33 of the sleeve 31 through the communication channel 11 penetrating through the body 1. In another embodiment of the sealing ring (not shown in the figures), the end surface inner cavity 22 includes a step portion 23, the sealing ring 6 is sleeved outside the first pipe 4, and the sealing ring 6 may have an outer end surface portion protruding out of the end surface of the first pipe 4, and the step portion 23 forms a seal between the end surface inner cavity 22 and the first pipe 4 by pressing against the outer end surface portion of the sealing ring 6, so as to seal a fit gap between the first end 2 and the first pipe 4. Therefore, after the first pipe 4 is tightly screwed and pressed by the pressing nut 7 for assembly and the pipe joint, the first pipe 4 is firmly and stably assembled and connected, and meanwhile, the sealing performance is fully ensured. On the other hand, the stepped portion 23 has a conical surface shape, and has a flow guide effect even if it does not act on the sealing and pressing.
According to the embodiment of the application, the body 1 comprises a clamping part 13, and the clamping part 13 is used for clamping a wrench tool. In this embodiment, the clamping part 13 may be a common outer hexagonal structure, so that when the pipe joint and the compression nut 7 are screwed and compressed, a wrench tool is matched with the shape of the clamping part 13 to rotate relatively, thereby realizing relative screwing and crimping. Of course, the configuration is not limited to that shown in the figures, and the gripping part 13 may also be shaped to fit a conventional wrench tool.
According to the embodiment of the present application, the sleeve 31 is coaxially disposed with the body 1, and the sleeve 31 is coaxially disposed with the second end 3. Therefore, a straight-through type circulation channel is formed, refrigerant can be circulated rapidly, meanwhile, the sleeve 31, the body 1 and the second end 3 are coaxially arranged, the angle relation between the sleeve and the body 1 after the sleeve is connected with the inner piping can be standardized, and the joint installation angle with the same standard can be achieved. According to the embodiment of the application, the wall thickness of the sleeve 31 is larger than 1mm, particularly in the embodiment of the figure, the arm thickness of the sleeve 31 is about 1.5mm so as to be the same as the wall thickness of the inner tubing, thereby not only shortening the welding heating time, but also improving the fluidity of the solder and ensuring the uniform distribution of the heated melting.
The pipe joint provided by the utility model is designed with the outwards extending sleeve 31 to form a pipe distribution channel, so that the joint of the lifting pipe and the inner pipe (copper pipe) are matched and welded to achieve the connecting and sealing effects, meanwhile, the thinner wall thickness of the sleeve 31 can enable the pipe joint to be heated quickly in the pipe distribution welding process, the welding temperature transmission is more uniform, the welding quality can be effectively improved, and the reject ratio can be reduced by 40%.
In addition, the sealing ring between the first end 2 and the second pipe (connecting pipe) can increase the overall sealing reliability of the assembly, and avoid the problem of abrasion and leakage caused by hard contact of a bell mouth of a copper pipe in the prior art.
Fig. 4 is a schematic structural diagram of a use state of the air conditioning pipe joint according to the embodiment of the present application. In a second aspect of the embodiments of the present application, an air conditioner pipeline is provided, which mainly includes a first pipe 4, a second pipe 5, and a pipe joint between the first pipe 4 and the second pipe 5 for connecting the two, where the pipe joint is the pipe joint for an air conditioner as described above. The first pipe 4 and the second pipe 5 are made of different materials, and the second pipe 5 is made of the same material as the pipe joint. Wherein the second pipe 5 no longer adopts the sealed mode of the hard contact of horn mouth, but sets up a bulge loop 41 at the tip, still cup joints a sealing washer 6 at bulge loop 41 front end simultaneously, can carry out spacing fixed with sealing washer 6 through a recess, and the arc recess can be better with O shape sealing washer 6 sealing contact better simultaneously. Along with the compression nut 7 compressing the first pipe 4 towards the first end 2, the sealing ring 6 can gradually compress the sealing ring 6 by means of the bell-mouth-shaped first chamfer 25, and after the sealing ring 6 is finally pressed into the limiting step 26, the sealing effect can be realized to the maximum.
In a second aspect, the present application provides an air conditioner comprising an air conditioning pipe joint as described above, or an air conditioning duct as described above. The pipe joint and the inner piping adopt the mode of welding after the sleeve 31 is sleeved, so that the welding firmness is better, and the sealing effect is better. And because the pipe joint and the outer connecting pipe adopt the detachable connection mode, wherein no longer adopt the sealing mode of the hard contact of the bell mouth, but realize the sealing mode of the sealing ring with the pretension deflection with the cooperation of the sealing ring and the bell mouth and the spacing step, can increase the whole sealing reliability of the assembly, avoid the problem that the hard contact of the bell mouth of the copper pipe in the prior art produces the abrasion leakage.
The utility model provides a novel pipe joint with a hexagonal end external extending type sleeve pipe (a pipe distribution channel is formed in the sleeve pipe) and a vertical end surface inner matching groove structure. Through extension formula piping passageway and interior piping collocation, the cooperation is effectual to the outer piping passageway that extends has the thinner characteristics of wall thickness, and the sleeve pipe wall thickness can be about 1.5 mm.
Compared with the common pipe joint, the utility model has the following technical effects:
(1) the connection mode of the pipe is not changed, the pipe is a straight pipe, and the integral structure of the pipeline cannot be changed due to the fact that the length of the pipe joint is lengthened;
(2) compared with the existing mode of directly welding the hexagonal end face, the outer extension sleeve (a pipe distribution channel is formed in the outer extension sleeve) has the technical advantages of higher heating speed, more uniform heating and more reliable welding quality;
(3) the pipe joint disclosed by the embodiment of the utility model is matched with the existing high-frequency welding equipment, and the cleaning-free soldering flux can be dipped in the sleeve (a pipe distribution channel is formed in the sleeve), so that the problems of abnormal blackening or generation of verdigris and the like caused by the fact that the soldering flux is configured at the hexagonal end and the threaded end of the pipe joint in the prior art and then welding can be effectively avoided.
The novel pipe joint provided by the embodiment of the utility model breaks through the traditional hard contact type sealing mode of the inclined conical surface and the bell mouth of the connecting pipe, can be embedded and matched with the sealing ring of the connecting pipe through the vertical end surface and the internally matched limiting step, and has the advantages that the two ends of the sealing ring are pressed and expanded to fill a gap in the screwing process of the pipe joint and the copper gland nut 7, so that a better sealing effect is realized, the O-shaped sealing ring structure is widely applied to sealing with a pipe end type structural part, the material selection and the processing technology are mature, and the pipe joint matched with the embodiment of the utility model has an excellent end surface sealing effect on a pipeline piece.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the general inventive concept. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a pipe joint for air conditioner, its characterized in that, first end (2) and second end (3) including body (1) and body (1) both ends, wherein first end (2) are including assembly connecting portion (21), assembly connecting portion (21) are used for passing through assembly mode fixed connection with first pipe (4), second end (3) include by body (1) outside extension's sleeve pipe (31), sleeve pipe (31) are used for cup jointing equipment back welded connection with second pipe (5).
2. The air conditioning pipe joint according to claim 1, wherein the inside of the sleeve (31) is a welded surface (32), and the second pipe (5) is fitted into the sleeve (31) and then welded and fixed to the inner wall of the sleeve (31).
3. The air conditioning pipe joint according to claim 1, wherein the first end (2) comprises a face cavity (22), the face cavity (22) communicating with the cavity (33) of the sleeve (31) through a communication channel (11) passing through the body (1).
4. The air conditioner pipe joint according to claim 3, wherein the inner wall end of the outer end of the first end (2) has a first guide groove (25) in a bell mouth shape for press-sealing with the seal ring (6) outside the first pipe (4).
5. The air-conditioning pipe joint according to any one of claims 1 to 4, wherein the body (1) comprises a gripping portion (13), the gripping portion (13) being intended to be gripped by a wrench tool.
6. The air conditioning pipe joint according to any of claims 1 to 4, wherein the sleeve (31) is arranged coaxially with the body (1) and/or
The sleeve (31) is arranged coaxially with the second end (3).
7. The air conditioner pipe joint according to any one of claims 1 to 4, wherein an inner wall end of the outer end of the sleeve (31) has a second chamfer (35) to form a groove between the sleeve (31) and the outer wall surface of the second pipe (5).
8. The air conditioning pipe joint according to any one of claims 1 to 4, wherein the wall thickness of the sleeve (31) is greater than 1 mm.
9. An air conditioning duct comprising a first pipe (4), a second pipe (5), and a pipe joint between the first pipe (4) and the second pipe (5) for connecting the two, characterized in that the pipe joint is an air conditioning pipe joint according to any one of claims 1 to 8.
10. An air conditioner characterized by comprising the air conditioning pipe joint as claimed in any one of claims 1 to 8, or comprising the air conditioning duct as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121070947.1U CN215568597U (en) | 2021-05-18 | 2021-05-18 | Pipe joint for air conditioner, air conditioner pipeline and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121070947.1U CN215568597U (en) | 2021-05-18 | 2021-05-18 | Pipe joint for air conditioner, air conditioner pipeline and air conditioner |
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| CN215568597U true CN215568597U (en) | 2022-01-18 |
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| CN202121070947.1U Active CN215568597U (en) | 2021-05-18 | 2021-05-18 | Pipe joint for air conditioner, air conditioner pipeline and air conditioner |
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| CN (1) | CN215568597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302050A (en) * | 2022-08-15 | 2022-11-08 | 武昌船舶重工集团有限公司 | Welding method for copper tube and carbon steel joint |
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2021
- 2021-05-18 CN CN202121070947.1U patent/CN215568597U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302050A (en) * | 2022-08-15 | 2022-11-08 | 武昌船舶重工集团有限公司 | Welding method for copper tube and carbon steel joint |
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