CN217382003U - Pipe fitting connection structure and pipeline assembly with same - Google Patents

Abstract

The application relates to the technical field of air conditioners, in particular to a pipe fitting connecting structure and a pipeline assembly with the same. This pipe fitting connection structure is including being responsible for and piping, is responsible for and has the inner chamber, is responsible for including the turn-ups, along the axial direction of piping, the turn-ups is bent and is located the inner chamber from the terminal surface of being responsible for, the turn-ups centers on forming the connecting hole, the part of piping is located the connecting hole, the turn-ups is formed with the first storage tank that is used for the holding solder with the piping cooperation, along the axial direction of connecting hole, first storage tank is close to the terminal surface setting of being responsible for, turn-ups and piping welded fastening. The application still provides a pipeline subassembly, and it includes above-mentioned pipe fitting connection structure. Compared with the prior art, the application has the advantages that: the first accommodating groove for accommodating the solder is formed by matching the flanging with the pipe, so that the solder is conveniently added into the first accommodating groove, and the connection strength between the pipe and the main pipe is improved.

Description

Pipe fitting connection structure and pipeline assembly with same

Technical Field

The application relates to the technical field of air conditioners, in particular to a pipe fitting connecting structure and a pipeline assembly with the same.

Background

The existing pipe fitting connecting structure generally has the problems of difficult solder addition and the like, thereby influencing the strength after welding.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a pipe connecting structure and a pipe assembly having the same, which can facilitate adding solder.

The utility model provides a pipe fitting connection structure, is including being responsible for and the piping, be responsible for and have the inner chamber, be responsible for including the turn-ups, follow the axial direction of piping, the turn-ups certainly the terminal surface of being responsible for bends and is located the inner chamber, the turn-ups is around forming the connecting hole, the part of piping is located in the connecting hole, the turn-ups with the piping cooperation is formed with the first storage tank that is used for the holding solder, follows the axial direction of connecting hole, first storage tank is close to the terminal surface setting of being responsible for, the turn-ups with piping welded fastening.

A pipeline assembly comprises the pipe fitting connecting structure.

The application provides a pipe fitting connection structure and have its pipeline subassembly, through making the turn-ups with the piping cooperation is formed with the first storage tank that is used for the holding solder, thereby is convenient for toward add the solder in the first storage tank, make the piping with joint strength between the person in charge can promote.

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 descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions 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 schematic structural view of an embodiment of a pipe fitting connection structure provided herein;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic view of a portion A of FIG. 1 showing another embodiment;

FIG. 4 is a schematic view of a portion A of FIG. 1 showing an enlarged structure of another embodiment;

FIG. 5 is a schematic structural view of another embodiment of a pipe fitting connection provided herein;

FIG. 6 is an enlarged view of a portion B of FIG. 5;

FIG. 7 is a schematic structural view of yet another embodiment of a pipe fitting connection structure as provided herein;

fig. 8 is a partially enlarged structural view of the portion C in fig. 7.

Reference numerals: 100. a pipe fitting connection structure; 10. a main pipe; 11. an inner cavity; 12. connecting holes; 121. rounding off; 122. chamfering; 123. a groove; 13. flanging; 20. piping; 21. a connecting section; 30. a first accommodating groove; 40. a second 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 embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be 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 terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

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 implicitly indicating 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 specifically limited 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 being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first 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 herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 8, the present application provides a pipe connection structure 100, and the pipe connection structure 100 is applied to a pipeline assembly.

The existing pipe fitting connecting structure generally has the problems of difficult solder addition and the like, thereby influencing the strength after welding.

For solving the problem that exists among the current pipe connection structure, the utility model provides a pipe connection structure 100, including being responsible for 10 and piping 20, be responsible for and have inner chamber 11 in 10, be responsible for 10 including turn-ups 13, along the axial direction of piping 20, turn-ups 13 bends and is located inner chamber 11 from the terminal surface of being responsible for 10, turn-ups 13 centers on forming connecting hole 12, the part of piping 20 is located connecting hole 12, turn-ups 13 is formed with the first storage tank 30 that is used for the holding solder with the cooperation of piping 20, along the axial direction of connecting hole 12, first storage tank 30 is close to the terminal surface setting of being responsible for 10, turn-ups 13 and piping 20 welded fastening.

In the present application, the first receiving groove 30 for receiving the solder is formed in the flange 13 and the pipe 20, so that the solder can be conveniently added into the first receiving groove 30 in the process of welding the main pipe 10 and the pipe 20, the contact area between the solder and the main pipe 10 and the pipe 20 is increased, and the connection strength between the pipe 20 and the main pipe 10 is improved.

Further, in an embodiment, as shown in fig. 2, the flange 13 includes a rounded corner 121, the first receiving groove 30 is formed by the cooperation between the rounded corner 121 and the outer peripheral wall of the pipe 20, a radius of the rounded corner 121 is defined as R, and R satisfies the relation: r is more than or equal to 0.2mm and less than or equal to 3 mm.

It should be noted that the radius R of the rounded corner 121 satisfies the relation 0.2mm ≦ R ≦ 3mm, i.e., the radius R of the rounded corner 121 may be 0.2mm, 1mm, 2mm, 3mm, or any value falling within the range, and is not limited herein. Make radius R of radius 121 satisfy relational expression 0.2mm R be less than or equal to 3mm, radius R of radius 121 should not be undersized on the one hand, the undersize can make the solder add the difficulty, and the welding seam is narrower, consequently make it increase the length of the accommodation space of first storage tank 30 and welding seam in this scope, not only be convenient for add the solder in toward first storage tank 30, and it makes the joint strength between piping 20 and the person in charge 10 promote to increase the solder, radius R of on the other hand radius 121 should not be too big, the accommodation space of having guaranteed first storage tank 30 is at certain within range, be unlikely to too big and increase material cost.

In the present embodiment, the flange 13 inside the main tube 10 is formed by punching at the end face of the main tube 10 toward the cavity 11, so that the flange 13 includes the rounded corner 121 or the chamfer 122, and the flange 13 is connected to the end face of the main tube 10 through the rounded corner 121 or the chamfer 122. By providing the burring 13 inside the main pipe 10, the contact area between the main pipe 10 and the pipe 20 is increased, and the welding strength between the main pipe 10 and the pipe 20 is improved.

Further, in order to more precisely define the range of values of the radius R of the rounded corner 121, the radius R of the rounded corner 121 satisfies the relation: r is more than or equal to 0.5mm and less than or equal to 1 mm. Thus, the radius R of the rounded corner 121 is further limited to a more suitable range in which the radius R of the rounded corner 121 does not increase unnecessary material costs due to being too large, nor does it make solder addition difficult and narrow the bead due to being too small.

Further, the hole wall of the connection hole 12 at the end away from the inner cavity 11 is not limited to the rounded portion 121 or the chamfered portion 122, and may be provided with other shapes as long as the first accommodation groove 30 can be formed by fitting with the pipe 20. In one embodiment, as shown in fig. 4, the flange 13 includes a chamfer 122, and the first receiving groove 30 is formed by the cooperation between the chamfer 122 and the outer peripheral wall of the pipe 20; wherein, the angle of the chamfer 122 is δ, and δ satisfies the following relation: delta is more than or equal to 30 degrees and less than or equal to 60 degrees. That is, the angle δ of the chamfer 122 may be 30 °, 50 °, 60 °, and any value falling within this range, and is not limited herein.

It should be noted that, by limiting the range of the angle δ of the chamfer 122, the size of the accommodating space of the first accommodating groove 30 and the length of the weld joint can also be limited to a certain extent, and the problems of difficulty in adding solder and narrow weld joint in the existing pipe connection structure can also be solved, which is not described herein again.

Along the axial direction from the outside to the inside of the main pipe 10, the direction from the outside to the inside is defined as the direction from the outer end surface of the main pipe 10 to the inner cavity 11, and the vertical distance from the fillet 121 to the central axis of the piping 20 is gradually reduced; alternatively, the perpendicular distance from the chamfer 122 to the central axis of the pipe 20 gradually decreases in the axial direction from the outside to the inside of the main pipe 10. This can provide a guide for the solder entering the first receiving groove 30, and the solder can be better guided to penetrate between the main pipe 10 and the pipe 20, and the contact area between the solder and the main pipe 10 and the pipe 20 can be increased, so that the welding strength between the main pipe 10 and the pipe 20 can be enhanced.

Further, as shown in fig. 3 and 4, the flange 13 may further include a groove 123, the groove 123 is formed by being recessed from an end surface of the rounded corner 121 or the chamfer 122 toward the inside, and the groove 123, the rounded corner 121 or the chamfer 122, and the outer peripheral wall of the pipe 20 together define the first accommodation groove 30. The provision of the groove 123 makes it possible to increase the accommodation space of the first accommodation groove 30 and further enhance the welding strength between the main pipe 10 and the pipe 20.

As shown in fig. 1 to 4, in an embodiment, a connection section 21 is disposed at one end of the pipe 20 located in the inner cavity 11, the pipe 20 is fixed to the flange 13 by welding through the connection section 21, and at least a part of the surface between the flange 13 and the connection section 21 is attached.

It should be noted that, by enabling at least part of the outer wall of the connecting section 21 to be attached to the inner wall of the flange 13, the welding contact area between the main pipe 10 and the pipe 20 is increased, and the welding strength between the main pipe 10 and the pipe 20 is further improved.

Specifically, in this embodiment, the connecting section 21 is located at the free end face of the cavity 11 and is flush with the free end face of the flange 13, and it should be noted that the free end faces refer to the end face where the connecting section 21 is located in the cavity 11 and is not connected with any component and the end face where the flange 13 is not connected with any component. And along the axial direction from outside to inside of the main pipe 10, the vertical distance from the flange 13 and the connecting section 21 to the central axis of the pipe 20 is gradually reduced, namely, the connecting section 21 and the flange 13 are both approximately arranged in a truncated cone shape with the diameter gradually reduced, so that compared with the existing pipe connecting structure, the connecting part of the pipe and the main pipe is subjected to necking or positioning ring arrangement, the pipe extending into the inner cavity still has a straight section, the material cost is obviously saved, the processing procedures are reduced, and meanwhile, the risk of flow blocking in the main pipe is avoided.

As shown in fig. 5 and 6, in another embodiment, the flange 13 is substantially cylindrical, the connecting section 21 is truncated-cone-shaped, and the diameter of the connecting section 21 is gradually reduced along the axial direction from the outside to the inside of the main pipe 10. The pipe 20 stretches into the connecting hole 12, the position of the maximum diameter on the connecting section 21 is used as a limiting part to abut against the flange 13, and the limiting is directly realized, so that the processing is convenient, and the positioning is convenient.

As shown in fig. 7 and 8, in another embodiment, the flange 13 and the connecting section 21 are both disposed in a truncated cone shape, and along the axial direction from the outside to the inside of the main pipe 10, the diameter of the connecting section 21 gradually decreases, and the diameter of the flange 13 gradually increases, wherein a second receiving groove 40 is further formed between the connecting section 21 and the flange 13, along the axial direction of the pipe 20, the first receiving groove 30 and the second receiving groove 40 are located at two sides of the abutting portion of the connecting section 21 and the flange 13, and the second receiving groove 40 is further away from the end surface of the main pipe 10 relative to the first receiving groove 30.

It should be noted that, in the embodiment shown in fig. 5 and 6, the second receiving groove 40 may also be formed between the flange 13 and the connecting section 21, and along the axial direction of the pipe 20, the first receiving groove 30 and the second receiving groove 40 are located at two sides of the abutting portion of the connecting section 21 and the flange 13, and the second receiving groove 40 is located farther from the end surface of the main pipe 10 than the first receiving groove 30.

It should be noted that, when the solder continuously permeates from the first receiving groove 30 to the inner cavity 11, the solder can permeate into the second receiving groove 40 and temporarily stays therein, so as to prevent the solder from directly flowing into the pipe opening of the pipe 20 to cause an internal flow or solder blockage. In addition, in the embodiment shown in fig. 7 and 8, since the vertical distance from the flange 13 to the central axis of the pipe 20 is gradually increased, on one hand, the space of the second receiving groove 40 is increased, and on the other hand, the solder in the second receiving groove 40 is guided in a direction away from the pipe 20, which is beneficial to avoiding the solder from flowing back from the inside of the pipe 20, thereby blocking the fluid flow in the pipe 20.

Note that, in the present application, the main pipe 10 is a hollow member, and the end surface of the main pipe refers to an end surface for connecting one end of the pipe 20, that is, an end surface outside the main pipe 10.

The utility model provides a pipe fitting connection structure 100 is formed with the first storage tank 30 that is used for the holding solder through making turn-ups 13 and piping 20 cooperation to be convenient for add the solder toward first storage tank 30 in, make piping 20 and be responsible for the joint strength between 10 and promote.

The utility model discloses still provide following technical scheme:

a piping component comprising the above-described pipe connection structure 100. The piping component has the same advantages as the pipe connection structure 100 described above.

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 main pipe (10) and a pipe (20), the main pipe (10) having an inner cavity (11) therein, characterized in that: be responsible for (10) including turn-ups (13), follow the axial direction of piping (20), turn-ups (13) certainly the terminal surface of being responsible for (10) is bent and is located inner chamber (11), turn-ups (13) are around forming connecting hole (12), the part of piping (20) is located in connecting hole (12), turn-ups (13) with piping (20) cooperation is formed with first storage tank (30) that are used for the holding solder, follows the axial direction of connecting hole (12), first storage tank (30) are close to the terminal surface setting of being responsible for (10), turn-ups (13) with piping (20) welded fastening.

2. The pipe connecting structure according to claim 1, wherein: the flanging (13) comprises a fillet (121), the first accommodating groove (30) is formed by matching the fillet (121) with the outer peripheral wall of the pipe (20), the radius of the fillet (121) is defined as R, and R satisfies the following relational expression: r is more than or equal to 0.2mm and less than or equal to 3 mm.

3. The pipe connecting structure according to claim 2, wherein: -defining the radius of the fillet (121) as R, R satisfying the following relation: r is more than or equal to 0.5mm and less than or equal to 1 mm.

4. The pipe connecting structure according to claim 2, wherein: along the axial direction from outside to inside of the main pipe (10), the vertical distance from the fillet (121) to the central axis of the tubing (20) is gradually reduced.

5. The pipe connecting structure according to claim 1, wherein: the flanging (13) comprises a chamfer (122), the first accommodating groove (30) is formed by matching the chamfer (122) with the outer peripheral wall of the pipe (20), the angle of the chamfer (122) is defined as delta, and the delta satisfies the following relational expression: delta is between 30 degrees and 60 degrees.

6. The pipe connecting structure according to claim 5, wherein: and the vertical distance from the chamfer (122) to the central axis of the piping (20) is gradually reduced along the axial direction from the outside to the inside of the main pipe (10).

7. The pipe connecting structure according to any one of claims 2 to 6, wherein: one end of the distribution pipe (20) positioned in the inner cavity (11) is provided with a connecting section (21), the connecting section (21) is abutted and limited with the flanging (13), and the distribution pipe (20) is welded and fixed with the flanging (13) through the connecting section (21);

at least part of the surface between the connecting section (21) and the flanging (13) is attached, or,

a second containing groove (40) is formed between the connecting section (21) and the flanging (13), along the axial direction of the distribution pipe (20), the first containing groove (30) and the second containing groove (40) are located on two sides of the butt joint of the connecting section (21) and the flanging (13), and the second containing groove (40) is far away from the end face of the main pipe (10) relative to the first containing groove (30).

8. The pipe connecting structure according to claim 7, wherein: the flanging (13) and the connecting section (21) are both arranged in a round table shape, and the diameter of the connecting section (21) is gradually reduced and the diameter of the flanging (13) is gradually increased along the axial direction of the main pipe (10) from outside to inside.

9. The pipe connecting structure according to claim 8, wherein: the free end face of the connecting section (21) is flush with the free end face of the flanging (13).

10. The pipe connecting structure according to claim 9, wherein: the flanging (13) comprises a fillet (121) and a groove (123), the groove (123) is formed by sinking from the end face of the fillet (121) to the inside, and the first accommodating groove (30) is formed by surrounding the groove (123), the fillet (121) and the outer peripheral wall of the distribution pipe (20);

or, turn-ups (13) include chamfer (122) and recess (123), recess (123) certainly the terminal surface of chamfer (122) is sunken to inside and is formed, first storage tank (30) by recess (123), chamfer (122), enclose jointly between piping (20) periphery wall and establish and form.

11. A manifold assembly, comprising: comprising a tubular connecting structure according to any one of claims 1-10.

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