CN218582498U - Pipeline connecting structure and refrigeration equipment - Google Patents
Pipeline connecting structure and refrigeration equipment Download PDFInfo
- Publication number
- CN218582498U CN218582498U CN202222873755.5U CN202222873755U CN218582498U CN 218582498 U CN218582498 U CN 218582498U CN 202222873755 U CN202222873755 U CN 202222873755U CN 218582498 U CN218582498 U CN 218582498U
- Authority
- CN
- China
- Prior art keywords
- section
- main body
- wall
- body section
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The application relates to a pipeline connecting structure and refrigeration equipment. The pipeline connecting structure and the refrigeration equipment comprise a connecting pipe and a sleeve which are sleeved, wherein the connecting pipe comprises a first main body section, a large-diameter section and an expansion section for connecting the large-diameter section and the first main body section. The inner diameter of the flaring section is gradually increased from the direction close to the first main body section to the direction far away from the first main body section, the inner diameter of the large-diameter section is larger than that of the first main body section, the sleeve comprises a second main body section and a necking section, and the inner diameter of the necking section is gradually reduced from the direction close to the second main body section to the direction far away from the second main body section. The sheathed tube one end is located through big footpath section cover to the takeover, and the inner wall subsides of flaring section locate the outer wall of necking down section, and the outer wall of second main part section is located in the inner wall subsides of big footpath section, and the pipeline connection structure and the refrigeration plant that this application provided have solved current pipeline connection structure and have cup jointed the problem that the department welds insecurely.
Description
Technical Field
The application relates to the technical field of pipelines, in particular to a pipeline connecting structure and refrigeration equipment.
Background
In the technical field of pipelines, a connection mode that two sections of pipelines are sleeved and welded at the sleeved position is often adopted, however, due to the arrangement, the welding area of the two sections of pipelines is small, and the welding of a pipeline connection structure at the sleeved position is easy to cause infirm.
SUMMERY OF THE UTILITY MODEL
Therefore, a pipeline connecting structure and a refrigeration device are needed to be provided to solve the problem that the sleeve joint of the existing pipeline connecting structure is not firmly welded.
Specifically, the pipeline connecting structure provided by the application comprises a connecting pipe and a sleeve which are sleeved, wherein the connecting pipe comprises a first main body section, a large-diameter section and a flaring section which is used for connecting the large-diameter section and the first main body section. The inner diameter of the flaring section is gradually increased from the direction close to the first main body section to the direction far away from the first main body section, the inner diameter of the large-diameter section is larger than that of the first main body section, the sleeve comprises a second main body section and a necking section, and the inner diameter of the necking section is gradually reduced from the direction close to the second main body section to the direction far away from the second main body section. The connecting pipe is sleeved at one end of the sleeve through the large-diameter section, the inner wall of the flaring section is attached to the outer wall of the necking section, and the inner wall of the large-diameter section is attached to the outer wall of the second main body section; or one end of the sleeve is sleeved on the large-diameter section of the connecting pipe, the inner wall of the reducing section is attached to the outer wall of the expanding section, and the inner wall of the second main body section is attached to the outer wall of the large-diameter section.
In one embodiment, the flared section has an inner diameter that increases uniformly from a direction closer to the first body section to a direction away from the first body section, and the tapered section has an inner diameter that decreases uniformly from a direction closer to the second body section to a direction away from the second body section. It can be understood that, so set up, reduced the processing degree of difficulty of flaring section and throat section to, be favorable to the inner wall of flaring section and the outer wall of throat section closely laminating, perhaps, be favorable to the inner wall of throat section and the outer wall of flaring section closely laminating.
In one embodiment, when the adapter tube is sleeved at one end of the sleeve by the large diameter section, the minimum inner diameter of the reduced section is greater than or equal to the inner diameter of the first main body section. It will be appreciated that this arrangement avoids the end of the constriction interfering with the flow of medium between the nipple and the sleeve. And, the assembly of the first sleeve with the second sleeve is facilitated.
In one embodiment, the extending direction of the flaring segment is defined as a first preset direction, the extending direction of the necking segment is defined as a second preset direction, the first preset direction is an expanding angle a relative to the axial direction of the first main body segment, and the second preset direction is a contracting angle b relative to the axial direction of the second main body segment, and the conditions that a = b is more than or equal to 15 degrees and less than or equal to 45 degrees are met. It will be appreciated that this arrangement facilitates the sleeving of the nipple with the sleeve.
In one embodiment, the length l of the flared section along the first predetermined direction 1 Length l of the throat section along a second predetermined direction 2 Satisfy, l 2 ≤l 1 . It can be understood that, with such an arrangement, the end of the throat section can be prevented from extending into the first main body section, thereby interfering with the flow of the refrigerant in the first main body section to the second main body section. And, facilitating passage of the end of the nipple remote from the cannula through the cannula from the opening of the second body segment.
In one embodiment, when the adapter tube is sleeved at one end of the sleeve through the large-diameter section, a side end face of the reducing section, which is far away from the second main body section, and the inner wall of the expanding section are clamped to form a first accommodating groove; the major diameter section is kept away from a side end face of flaring section and the inner wall of second main part section and is pressed from both sides and establish and form the second holding tank. It will be appreciated that, so configured, solder can be placed in the first and second receiving grooves, respectively, to facilitate welding of the adapter tube and the sleeve.
In one embodiment, a first welding groove is arranged between the necking section and the flaring section and is communicated with the first accommodating groove; be equipped with second welding groove between major diameter section and the second main part section, and second welding groove intercommunication second holding tank. It can be understood that the arrangement is beneficial to improving the permeability of the welding flux, so that the welding strength of the flaring section and the necking section is improved.
In one embodiment, the first weld groove and the second weld groove are provided in the outer wall of the throat section and the outer wall of the second body section, respectively. It can be understood that the processing difficulty of the first welding groove and the second welding groove is reduced.
In an embodiment, the extending direction of the reducing section is defined as a second predetermined direction, one end of the first welding groove is disposed at one end of the reducing section away from the second main body section, and the other end of the first welding groove extends along the second predetermined direction toward a direction close to the second main body section, one end of the second welding groove is communicated with the first welding groove, and the other end of the second welding groove extends along the axial direction of the second main body section toward a direction away from the reducing section. It can be understood that, by adopting the arrangement, the processing difficulty of the first welding groove and the second welding groove is further reduced.
In one embodiment, when one end of the sleeve is sleeved on the large-diameter section of the connecting pipe, a side end face of the reducing section, which is far away from the second main body section, and an outer wall of the flaring section are clamped to form a third accommodating groove; the major diameter section is kept away from a side end face of flaring section and the inner wall of second main part section and is pressed from both sides and establish and form the fourth holding tank. It can be understood that, with this arrangement, solder can be placed in the third receiving groove and the fourth receiving groove, respectively, thereby facilitating welding of the adapter tube and the sleeve.
The application further provides a refrigeration device, which comprises the pipeline connecting structure in any one of the above embodiments.
The application provides a pipeline connection structure, when the takeover locates sheathed tube one end through the major diameter section cover, the outer wall of the section that contracts is located in the subsides of the inner wall of flaring section, and the outer wall of second main part section is located in the subsides of the inner wall of major diameter section. So, the inner wall of flaring section can with the welding of throat section outer wall, and the inner wall of big footpath section can with the inner wall welding of second main part section, and then has increased takeover and sheathed tube effective weld area to takeover and sleeve pipe welded firm degree has been improved. Similarly, when one end of the sleeve is sleeved on the large-diameter section of the adapter tube, the inner wall of the reducing section is attached to the outer wall of the expanding section, and the inner wall of the second main body section is attached to the outer wall of the large-diameter section. So, flaring section outer wall can weld with the inner wall of necking down section, and big footpath section outer wall can weld with the outer wall of second main part section, and then has increased takeover and sheathed tube effective weld area to takeover and sleeve pipe welded firm degree has been improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a sectional view of a piping connection structure according to an embodiment provided in the present application;
FIG. 2 is a cross-sectional view of another embodiment of a tubing connection arrangement provided herein;
FIG. 3 is a schematic structural view of a bushing according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a bushing according to another embodiment of the present application.
Reference numerals are as follows: 1. taking over a pipe; 11. a first body segment; 12. a large diameter section; 13. a flared section; 2. a sleeve; 21. a necking section; 22. a second body segment; 23. a guide section; 24. a circular arc transition section; 3. a first accommodating groove; 4. a second accommodating groove; 5. a first welding groove; 6. a second welding groove; 7. a third accommodating groove; 8. and a fourth accommodating groove.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The use of the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like in the description of the present application is for purposes of illustration only and is not intended to represent the only embodiment.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present 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 application. As used in the description of this application, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the technical field of pipeline connection structures, a connection mode that two sections of pipelines are sleeved and welded at the sleeved position is adopted, however, due to the arrangement, the welding area of the two sections of pipelines is small, and the pipeline connection structure is welded at the sleeved position insecurely.
Referring to fig. 1-2, in order to solve the problem of weak welding at the joint of the conventional pipe connection structure, the present application provides a pipe connection structure. Specifically, the pipeline connecting structure comprises a connecting pipe 1 and a sleeve 2 which are sleeved, wherein the connecting pipe 1 comprises a first main body section 11, a large-diameter section 12 and a flared section 13 which connects the large-diameter section 12 with the first main body section 11, the inner diameter of the flared section 13 is gradually increased from the direction close to the first main body section 11 to the direction far away from the first main body section 11, the inner diameter of the large-diameter section 12 is larger than that of the first main body section 11, the sleeve 2 comprises a second main body section 22 and a reduced-diameter section 21, and the inner diameter of the reduced-diameter section 21 is gradually reduced from the direction close to the second main body section 22 to the direction far away from the second main body section 22. The connecting pipe 1 is sleeved at one end of the sleeve 2 through the large-diameter section 12, the inner wall of the flaring section 13 is attached to the outer wall of the necking section 21, and the inner wall of the large-diameter section 12 is attached to the outer wall of the second main body section 22; or, one end of the sleeve 2 is sleeved on the large-diameter section 12 of the adapter tube 1, the inner wall of the reduced section 21 is attached to the outer wall of the expanded section 13, and the inner wall of the second main body section 22 is attached to the outer wall of the large-diameter section 12.
When the adapter tube 1 is sleeved at one end of the sleeve 2 through the large-diameter section 12, the inner wall of the flared section 13 is attached to the outer wall of the reduced section 21, and the inner wall of the large-diameter section 12 is attached to the outer wall of the second main body section 22. So, the inner wall of flaring section 13 can weld with the outer wall of necking section 21, and the inner wall of major diameter section 12 can weld with the inner wall of second main part section 22, and then has increased the effective welding area who takes over 1 and sleeve pipe 2 to the firm degree of taking over 1 and sleeve pipe 2 welded has been improved. Similarly, when one end of the sleeve 2 is sleeved on the large diameter section 12 of the adapter 1, the inner wall of the reduced section 21 is attached to the outer wall of the expanded section 13, and the inner wall of the second main body section 22 is attached to the outer wall of the large diameter section 12. So, 13 outer walls of flaring section can be with the inner wall welding of necking section 21, and the outer wall welding of big footpath section 12 outer walls and second main part section 22, and then has increased the effective welding area who takes over 1 and sleeve pipe 2 to the firm degree of taking over 1 and sleeve pipe 2 welded has been improved.
To sum up, the pipeline connecting structure that this application provided has solved the insecure problem of current pipeline connecting structure welding.
In one embodiment, as shown in fig. 1-2, the inner diameter of the flared section 13 increases uniformly from a direction closer to the first body section 11 to a direction away from the first body section 11, and the inner diameter of the necked section 21 decreases uniformly from a direction closer to the second body section 22 to a direction away from the second body section 22.
Therefore, the processing difficulty of the flaring section 13 and the necking section 21 is reduced, and the inner wall of the flaring section 13 is tightly attached to the outer wall of the necking section 21, or the inner wall of the necking section 21 is tightly attached to the outer wall of the flaring section 13.
In one embodiment, as shown in fig. 1, when the adapter tube 1 is sleeved at one end of the sleeve 2 by the large diameter section 12, the minimum inner diameter of the reduced diameter section 21 is greater than or equal to the inner diameter of the first main body section 11.
When the adapter tube 1 is sleeved at one end of the sleeve 2 through the large-diameter section 12, the end of the reduced section 21 can be prevented from interfering with the medium flowing between the adapter tube 1 and the sleeve 2 by setting the minimum inner diameter of the reduced section 21 to be greater than or equal to the inner diameter of the first main body section 11.
In one embodiment, as shown in fig. 1, the extending direction of the flared section 13 is defined as a first predetermined direction, the extending direction of the contracted section 21 is defined as a second predetermined direction, the first predetermined direction has an expanding angle a relative to the axial direction of the first main body section 11, and the second predetermined direction has a contracting angle b relative to the axial direction of the second main body section 22, which satisfies that a = b is greater than or equal to 15 °.
Thus, the connecting pipe 1 and the sleeve 2 are convenient to be sleeved.
In one embodiment, as shown in FIG. 1, the length l of the flared section 13 along the first predetermined direction 1 The length l of the throat section 21 in the second predetermined direction 2 Satisfy, l 2 ≤l 1 。
When the adapter 1 is sleeved at one end of the sleeve 2 through the large-diameter section 12, the arrangement l is set 2 ≤l 1 The end of the necking section 21 can be prevented from extending into the first main body section 11, thereby interfering with the flow of the refrigerant in the first main body section 11 to the second main body section 22. When one end of the sleeve 2 is sleeved on the large diameter of the connecting pipe 1, the sleeve is provided with l 2 ≤l 1 The assembly of the first sleeve 2 with the second sleeve 2 is facilitated. That is, the end of the adapter tube 1 remote from the sleeve 2 is facilitated to pass through the sleeve 2 from the opening of the second body segment 22, thereby achieving that the inner wall of the constricted segment 21 abuts the outer wall of the flared segment 13.
In an embodiment, as shown in fig. 1, when the adapter tube 1 is sleeved on one end of the sleeve 2 through the large diameter section 12, a side end surface of the reduced diameter section 21 away from the second main body section 22 and an inner wall of the expanded diameter section 13 are clamped to form the first receiving groove 3. The end surface of one side of the large-diameter section 12 far away from the flaring section 13 and the inner wall of the second main body section 22 are clamped to form a second accommodating groove 4.
In this way, the solder can be placed in the first receiving groove 3 and the second receiving groove 4, respectively, thereby facilitating the welding of the adapter tube 1 and the sleeve 2.
Further, in an embodiment, as shown in fig. 3, a first welding groove 5 is disposed between the reducing section 21 and the expanding section 13, and the first welding groove 5 is communicated with the first receiving groove 3, a second welding groove 6 is disposed between the large diameter section 12 and the second main body section 22, and the second welding groove 6 is communicated with the second receiving groove 4.
Through setting up first welding groove 5 for the interior molten solder of first holding tank 3 can flow into between flaring section 13 inner wall and the necking down section 21 outer wall along first welding groove 5, thereby is favorable to improving the permeability of solder and improves flaring section 13 and necking down section 21's welding strength. Likewise, by providing the second welding groove 6, the solder melted in the second receiving groove 4 can flow into between the inner wall of the large diameter section 12 and the outer wall of the second main body section 22 along the second welding groove 6, thereby facilitating the improvement of the welding strength of the large diameter section 12 and the second main body section 22.
Further, in an embodiment, as shown in fig. 3, the first receiving groove 3 is communicated with the second receiving groove 4 sequentially through the first welding groove 5 and the second welding groove 6.
In this way, a more even distribution of the solder at the connection of the adapter tube 1 and the sleeve 2 is facilitated.
But not limited thereto, in other embodiments, the first and second welding grooves 5 and 6 may not be communicated with each other.
Still further, in an embodiment, as shown in fig. 3, the first welding groove 5 and the second welding groove 6 are provided on the outer wall of the throat section 21 and the outer wall of the second body section 22, respectively.
Thus, the processing difficulty of the first welding groove 5 and the second welding groove 6 is reduced.
Specifically, the first and second welding grooves 5 and 6 may be rolled out by a knurling tool on the outer wall of the throat section 21 and the outer wall of the second body section 22.
Still further, in an embodiment, as shown in fig. 3, the extending direction of the reducing section 21 is defined as a second predetermined direction, one end of the first welding groove 5 is disposed at an end of the reducing section 21 away from the second main body section 22, and the other end extends toward a direction approaching the second main body section 22 along the second predetermined direction. The second welding groove 6 has one end communicating with the first welding groove 5 and the other end extending in the axial direction of the second body segment 22 away from the throat segment 21.
So for first welding groove 5 and second welding groove 6's structure is simpler, thereby has further reduced first welding groove 5 and second welding groove 6's the processing degree of difficulty.
Still further, in an embodiment, the first and second welding grooves 5, 6 are evenly distributed along the circumferential direction of the throat section 21 and the circumferential direction of the second body section 22, respectively.
In an embodiment, as shown in fig. 2, when one end of the sleeve 2 is sleeved on the large diameter section 12 of the adapter 1, an end surface of the reduced section 21 away from the second main body section 22 and an outer wall of the flared section 13 are clamped to form the third receiving groove 7. The end surface of one side of the large-diameter section 12 far away from the flaring section 13 and the inner wall of the second main body section 22 are clamped to form a fourth accommodating groove 8.
In this way, the solder can be placed in the third receiving groove 7 and the fourth receiving groove 8, respectively, thereby facilitating the welding of the adapter tube 1 and the sleeve 2.
Further, in an embodiment, a third welding groove (not shown) is disposed between the reducing section 21 and the expanding section 13, and the third welding groove communicates with the third accommodating groove 7. A fourth welding groove (not shown) is formed between the large diameter section 12 and the second main body section 22, and the fourth welding groove communicates with the fourth receiving groove 8.
Through setting up the third welding groove for the interior molten solder of third holding tank 7 can flow into between flaring section 13 outer wall and the throat section 21 inner wall along the third welding groove, thereby is favorable to improving the welding strength of flaring section 13 and throat section 21. Likewise, by providing the fourth welding groove, the solder melted in the fourth accommodating groove 8 can flow between the outer wall of the large diameter section 12 and the inner wall of the second main body section 22 along the fourth welding groove, thereby facilitating the improvement of the welding strength of the large diameter section 12 and the second main body section 22.
Further, in one embodiment, the third receiving groove 7 communicates with the fourth receiving groove 8 sequentially through the third welding groove and the fourth welding groove.
In this way, a more even distribution of the solder at the connection of the nipple 1 and the socket 2 is facilitated.
However, in other embodiments, the third solder groove and the fourth solder groove may not be in communication with each other.
Still further, in an embodiment, a third weld groove and a fourth weld groove are provided on the outer wall of the flared section 13 and the outer wall of the large diameter section 12, respectively.
Thus, the processing difficulty of the first welding groove 5 and the second welding groove 6 is reduced.
Specifically, the fourth welding groove and the third welding groove may be rolled out by a knurling tool on the outer wall of the large diameter section 12 and the outer wall of the flared section 13.
Still further, in an embodiment, one end of the fourth welding groove is disposed at an end of the large diameter section 12 far from the flared section 13, and the other end extends along an axial direction of the large diameter section 12 toward a direction close to the flared section 13, and one end of the third welding groove communicates with the fourth welding groove, and the other end extends along the first predetermined direction toward a direction far from the large diameter section 12.
So for the simple structure in third welding groove and fourth welding groove, thereby further reduced the processing degree of difficulty in third welding groove and fourth welding groove.
Still further, in an embodiment, the fourth weld groove and the third weld groove are uniformly distributed along the circumferential direction of the large diameter section 12 and the circumferential direction of the flared section 13, respectively.
In an embodiment, as shown in fig. 3, the sleeve 2 further comprises a guiding section 23, one end of the guiding section 23 is connected with one end of the sleeve 2 far away from the adapter 1, and the other end extends towards the direction far away from the sleeve 2. The inner diameter of the guide section 23 increases in a direction away from the casing 2.
Through setting up guide section 23, be convenient for required pipeline along the inner wall of guide section 23 insert in the sleeve pipe 2 to the inner wall of guide section 23 and the pipeline outer wall clamp establish and form the fifth holding tank, and the fifth holding tank can hold the solder.
In another embodiment, as shown in fig. 4, the outer diameter of the guiding section 23 is larger than that of the second main body section 22, and the junction of the second main body section 22 and the guiding section 23 is provided with a circular arc transition section 24. Therefore, the solder is convenient to be placed in the accommodating groove.
Further, in one embodiment, the throat section 21, the second body section 22 and the guide section 23 are of an integrally formed structure. Specifically, one end of the sleeve 2 is formed with a tapered section 21 by bending, and the other end is formed with a guide section 23 by bending.
The application further provides a refrigeration device, which comprises the pipeline connecting structure in any one of the above embodiments. In particular, the pipe connection structure is often used in a switching valve, a header assembly, or a muffler of a refrigeration apparatus.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (11)
1. A pipe connection structure, comprising a connecting pipe (1) and a sleeve (2) which are sleeved, wherein the connecting pipe (1) comprises a first main body section (11), a large diameter section (12) and a flaring section (13) which connects the large diameter section (12) and the first main body section (11), the inner diameter of the flaring section (13) is gradually increased from the direction close to the first main body section (11) to the direction far away from the first main body section (11), the inner diameter of the large diameter section (12) is larger than that of the first main body section (11), the sleeve (2) comprises a second main body section (22) and a reducing section (21), and the inner diameter of the reducing section (21) is gradually reduced from the direction close to the second main body section (22) to the direction far away from the second main body section (22);
the connecting pipe (1) is sleeved at one end of the sleeve (2) through the large-diameter section (12), the inner wall of the flaring section (13) is attached to the outer wall of the necking section (21), and the inner wall of the large-diameter section (12) is attached to the outer wall of the second main body section (22);
or one end of the sleeve (2) is sleeved on the large-diameter section (12) of the connecting pipe (1), the inner wall of the reducing section (21) is attached to the outer wall of the expanding section (13), and the inner wall of the second main body section (22) is attached to the outer wall of the large-diameter section (12).
2. The piping connection structure according to claim 1, wherein an inner diameter of the flared section (13) uniformly increases from a direction close to the first main body section (11) to a direction away from the first main body section (11), and an inner diameter of the constricted section (21) uniformly decreases from a direction close to the second main body section (22) to a direction away from the second main body section (22).
3. The piping connection structure according to claim 1, wherein the minimum inner diameter of the constricted section (21) is larger than or equal to the inner diameter of the first main body section (11) when the adapter tube (1) is fitted to one end of the casing tube (2) by the large diameter section (12).
4. Tubing connection according to claim 2, characterized in that the direction of extension of said flared section (13) is defined as a first preset direction and the direction of extension of said necked-down section (21) is defined as a second preset direction, the first preset direction having an angle of expansion a with respect to the axial direction of said first body section (11) and the second preset direction having an angle of contraction b with respect to the axial direction of said second body section (22), such that 15 ° ≦ a = b ≦ 45 °.
5. The piping connection structure according to claim 4, whichCharacterized in that the length l of the flared section (13) in a first predetermined direction 1 The length l of the throat section (21) along a second predetermined direction 2 Satisfy, < i > 2 ≤l 1 。
6. The pipeline connecting structure according to claim 1, wherein when the adapter pipe (1) is sleeved at one end of the sleeve pipe (2) through the large diameter section (12), a side end face of the reducing section (21) far away from the second main body section (22) and an inner wall of the flaring section (13) are clamped to form a first accommodating groove (3);
the end face, far away from the flaring section (13), of one side of the large-diameter section (12) and the inner wall of the second main body section (22) are clamped to form a second accommodating groove (4).
7. The pipe connection according to claim 6, wherein a first welding groove (5) is provided between the reduced section (21) and the enlarged section (13), and the first welding groove (5) communicates with the first receiving groove (3);
the large-diameter section (12) and the second main body section (22) are provided with a second welding groove (6) therebetween, and the second welding groove (6) is communicated with the second accommodating groove (4).
8. The pipe connection according to claim 7, wherein the first welding groove (5) and the second welding groove (6) are provided on the outer wall of the throat section (21) and the outer wall of the second body section (22), respectively.
9. The pipe connection according to claim 8, wherein the extending direction of the reducing section (21) is defined as a second preset direction, one end of the first welding groove (5) is arranged at one end of the reducing section (21) far away from the second main body section (22), the other end extends along the second preset direction towards the direction close to the second main body section (22), one end of the second welding groove (6) is communicated with the first welding groove (5), and the other end extends along the axial direction of the second main body section (22) towards the direction far away from the reducing section (21).
10. The pipeline connecting structure according to claim 1, wherein when one end of the sleeve (2) is sleeved on the large diameter section (12) of the connecting pipe (1), a side end face of the reducing section (21) far away from the second main body section (22) and an outer wall of the expanding section (13) are clamped to form a third accommodating groove (7);
the end face, far away from the flaring section (13), of one side of the large-diameter section (12) and the inner wall of the second main body section (22) are clamped to form a fourth accommodating groove (8).
11. A refrigeration apparatus comprising a pipe connection structure as claimed in any one of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222873755.5U CN218582498U (en) | 2022-10-28 | 2022-10-28 | Pipeline connecting structure and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222873755.5U CN218582498U (en) | 2022-10-28 | 2022-10-28 | Pipeline connecting structure and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218582498U true CN218582498U (en) | 2023-03-07 |
Family
ID=85376007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222873755.5U Active CN218582498U (en) | 2022-10-28 | 2022-10-28 | Pipeline connecting structure and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218582498U (en) |
-
2022
- 2022-10-28 CN CN202222873755.5U patent/CN218582498U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218582498U (en) | Pipeline connecting structure and refrigeration equipment | |
| CN106555910B (en) | The pipeline assembly of pipe connecting structure and method, air-conditioner set | |
| CN211259985U (en) | Novel low-resistance pipe fitting with elbow | |
| CN213685372U (en) | Piping subassembly, cross valve subassembly and air conditioning system | |
| CN211259974U (en) | Copper trousers type tee joint convenient to be butted with pipeline | |
| CN212430125U (en) | High pressure steel wire pipe plastic turn-ups connection structure and high pressure steel wire pipe | |
| CN214789578U (en) | Air conditioner pipeline connecting structure | |
| CN102401195A (en) | Stainless steel reducer pipe and processing method thereof | |
| CN210739613U (en) | Clamping and pressing purple copper pipe fitting | |
| CN215410747U (en) | Double-layer three-way pipe fitting | |
| CN219841169U (en) | Simple connection structure suitable for large-caliber pipe port | |
| CN211649481U (en) | Fast-assembling saddle type electric smelting side branch pipe fitting | |
| CN216045989U (en) | Snap ring type stop valve connecting structure | |
| CN213180249U (en) | Clamping joint for water meter detection and water meter detection system | |
| CN204239961U (en) | A kind of elbow | |
| CN212480491U (en) | High-strength thermoplastic pipe connecting structure | |
| CN216307057U (en) | Adjustable hydraulic pipe joint | |
| CN215060207U (en) | Connecting structure of water supply and drainage pipeline | |
| CN217632841U (en) | Suction and exhaust pipe of compressor, compressor formed by suction and exhaust pipe and air conditioner | |
| CN215891531U (en) | V type three-way pipe of reducing | |
| CN214197647U (en) | High-strength pipeline for sewage treatment | |
| CN215981375U (en) | Loose joint pipe device | |
| CN221121379U (en) | Soft and hard pipe adapter | |
| CN214305709U (en) | Quick erection joint of drain pipe | |
| CN216046078U (en) | Tee bend pipe fitting for chemical pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |