CN210687403U - Adapter and connection structure of main pipeline and branch pipeline - Google Patents

Abstract

The utility model discloses a conversion joint, which is used for connecting a sub-pipeline to a main pipeline. The conversion joint comprises a first connection part and a plurality of second connection parts; The connecting part and the through hole of the second connecting part, the end of the first connecting part is provided with an arc-shaped opening groove that fits with the outer surface of the main pipe, and the arc-shaped opening groove is used for fixing the on the main pipe and make the through hole communicate with the inside of the main pipe; the end of the second connecting part is provided with a plug-in part, and the plug-in part is used for plugging and fixing with the sub-pipeline and enabling The through hole communicates with the inside of the sub-pipe. The conversion joint of the utility model can conveniently connect the sub-pipeline with the main pipe, without the need for expanding or shrinking the sub-pipeline, which not only improves the production efficiency, but also reduces the production cost.

Description

Adapter and connection structure of main pipeline and branch pipeline

technical field

The utility model relates to a conversion joint and a connection structure of a main pipeline and a branch pipeline.

Background technique

In view of the situation that the main pipe of the automobile air-conditioning pipeline needs to have a sub-pipeline, the main method in the market is to open a hole on the main pipe, and then use a flaring die to expand the opening at the connecting end of the sub-pipeline or use a shrinking die to shrink it. Then, by brazing and other methods, the opening after the expansion or shrinkage of the sub-pipe is welded outside the through hole of the main pipe to form a complete connection structure. The welding type of flaring or shrinking needs to be flaring or shrinking in the state of straight pipe. If the pipe needs to be bent, it needs to be expanded or reduced before bending. The process flow is relatively complicated, and the pipe needs to be bent. For pipe bending, the length of the bending pipe section is relatively strict, and the length is required to be at least twice the pipe diameter, otherwise it is necessary to develop a special pipe bending mold with higher cost. At the same time, the flaring or shrinking of the sub-pipeline should also be equipped with a timely flaring die or a shrinking die, which makes the production cost relatively high.

Utility model content

The technical problem to be solved by the utility model is to provide a conversion joint and a connection structure of the main pipe and the branch pipe in order to overcome the defects of complicated connection process and high production cost of the main pipe and the branch pipe of the air conditioning pipeline in the prior art.

The utility model solves the above-mentioned technical problems through the following technical solutions:

An adapter for connecting a sub-pipeline to a main pipe is characterized in that the adapter includes a first connecting part and a plurality of second connecting parts, and the adapter is provided with a penetration through the first connection The end of the first connecting part is provided with an arc-shaped opening groove that fits with the outer surface of the main pipe, and the arc-shaped opening groove is used for fixing on the on the main pipe and make the through hole communicate with the interior of the main pipe;

An end portion of the second connecting portion is provided with an inserting portion, and the inserting portion is used for inserting and fixing with the sub-pipeline and making the through hole communicate with the interior of the sub-pipeline.

In this scheme, when the adapter is in use, the arc-shaped opening groove is installed outside the corresponding opening of the main pipeline, and fixed by welding, etc., and the opening of the sub-pipeline and the other end of the adapter are inserted and installed to realize the sub-pipeline. The quick installation with the main pipeline eliminates the need for the sub-pipes to be flared and then installed on the main pipeline, which not only improves the production efficiency, but also reduces the production cost.

Preferably, a main body part is formed between the first connection part and the second connection part, and the main body part is a straight pipe structure or a curved pipe structure.

In this solution, since the extension direction of the sub-pipeline on the main pipe has various forms, the main body of the conversion joint is set to a straight pipe structure or a curved pipe structure, which is convenient for reasonable selection according to the extension direction of the sub-pipeline.

Preferably, the arc-shaped opening groove penetrates through two opposite side walls of the first connecting portion and communicates with the through hole.

In this solution, the above-mentioned structural form is adopted to facilitate the fitting of the arc-shaped opening groove to the outer side of the opening of the main pipe.

Preferably, the end of the second connecting part is provided with a groove, the through hole communicates with the groove, and when the sub-pipeline is inserted into the groove, the through hole is connected to the sub-duct. Internal communication of pipes.

In this solution, grooves are provided to facilitate welding and fixing after inserting the sub-pipe into the adapter.

Preferably, the inner diameter of the groove is not smaller than the outer diameter of the sub-pipe.

Preferably, the diameter of the through hole is not larger than the inner diameter of the sub-pipe.

Preferably, the cross-sections of the through-hole and the groove are both circular, and the center of the circular cross-section at the connection between the through-hole and the groove is located at the same point.

A connection structure of a main pipeline and a sub-pipeline is characterized in that it includes the above-mentioned conversion joint, the first connection part of the conversion joint is installed on the main pipeline, and the second connection part is installed on the There are said sub-pipes.

On the basis of common knowledge in the field, the above preferred conditions can be combined arbitrarily to obtain preferred embodiments of the present invention.

The positive improvement effect of the present utility model is that the conversion joint of the present utility model can conveniently connect the sub-pipeline with the main pipe without expanding or shrinking the sub-pipeline, which not only improves the production efficiency, but also reduces the production cost. .

Description of drawings

FIG. 1 is a schematic structural diagram of a conversion joint in Embodiment 1 of the present invention.

FIG. 2 is a cross-sectional view of the conversion joint in Embodiment 1 of the present utility model.

FIG. 3 is a side view of the conversion joint in Embodiment 1 of the present invention.

FIG. 4 is a schematic diagram of the connection between the conversion joint and the main pipeline and the branch pipeline in Embodiment 1 of the present utility model.

FIG. 5 is a schematic structural diagram of a conversion joint in Embodiment 2 of the present invention.

FIG. 6 is a schematic diagram of the connection between the conversion joint and the main pipeline and the branch pipeline in Embodiment 2 of the present utility model.

7 is a schematic structural diagram of a conversion joint in Embodiment 3 of the present invention.

FIG. 8 is a schematic diagram of the connection between the conversion joint and the main pipeline and the branch pipeline in Embodiment 3 of the present invention.

9 is a schematic structural diagram of a conversion joint in Embodiment 4 of the present invention.

FIG. 10 is a schematic diagram of the connection between the adapter and the main pipeline and the branch pipeline in Embodiment 4 of the present utility model.

Description of reference numbers:

Adapter 1

first connection part 11

Arc Open Slot 111

second connection part 12

Groove 121

Circular steps 122

Through hole 13

main body 14

main pipe 2

sub-pipeline 3

Detailed ways

The present invention is further described below by means of examples, but the present invention is not limited to the scope of the following examples.

As shown in FIGS. 1-10 , a conversion joint 1 of the present invention is used to connect the sub-pipeline 3 to the main pipeline 2 , and the conversion joint 1 includes a first connection part 11 and a plurality of second connection parts 12 , the adapter 1 is provided with a through hole 13 penetrating the first connecting part 11 and the second connecting part 12, and the end of the first connecting part 11 is provided with an arc-shaped opening groove 111 that fits with the outer surface of the main pipe 2. The open slot 111 is used to be fixed on the main pipe 2 and make the through hole 13 communicate with the interior of the main pipe 2; The through hole 13 is fixed and communicated with the inside of the branch pipe 3 .

Example 1

As shown in FIGS. 1-3 , in this embodiment, the adapter 1 includes a first connecting portion 11 and a second connecting portion 12 , and the adapter 1 is provided with a penetrating first connecting portion 11 and a second connecting portion 12 in the adapter 1 . The end of the first connecting part 11 is provided with an arc-shaped opening groove 111 that fits with the outer surface of the main pipe 2. The arc-shaped opening groove 111 is used to be fixed on the main pipe 2 and make the through hole 13 and the main pipe 2. The inside of the pipe 2 is communicated; the end of the second connection part 12 is provided with a plug-in part, and the plug-in part is used for inserting and fixing with the sub-pipe 3 and making the through hole 13 communicate with the interior of the sub-pipe 3 .

As shown in FIG. 4 , when the adapter 1 in this embodiment is in use, the arc-shaped opening groove 111 is installed outside the corresponding opening of the main pipe 2, and fixed by welding, etc., to connect the opening of the branch pipe 3 to the adapter. The other end of 1 is plugged and installed to realize the rapid installation of the sub-pipe 3 and the main pipe 2. There is no need to expand the sub-pipe 3 and then install it on the main pipe 2, which not only improves the production efficiency, but also reduces the production cost.

Between the first connection part 11 and the second connection part 12 is a main body part 14 , and the main body part 14 is a straight pipe structure.

The arc-shaped opening groove 111 penetrates through two opposite side walls of the first connecting portion 11 and communicates with the through hole 13 . With the above structure, it is convenient to fit the arc-shaped opening groove 111 to the outer side of the opening of the main pipe 2 . In this embodiment, the through hole 13 located in the first connecting portion 11 does not extend into the arc-shaped opening groove 111 , but in other possible implementations, the through-hole 13 can extend into the arc-shaped opening groove 111 . When the open groove 111 is fitted with the main pipe 2 , the through hole 13 can extend into the main pipe 2 .

The insertion part of the second connecting part 12 is a groove 121 , and the through hole 13 communicates with the groove 121 . A groove 121 is provided at the end of the second connecting portion 12 to facilitate welding and fixing after inserting the sub-pipe 3 into the adapter 1 .

Wherein, the inner diameter of the groove 121 is not less than the outer diameter of the branch pipe 3 . The diameter of the through hole 13 is not larger than the inner diameter of the branch pipe 3 . The cross-sections of the through-hole 13 and the groove 121 are both circular, and the center of the circular cross-section at the connection between the through-hole 13 and the groove 121 is located at the same point.

The utility model also discloses a connection structure between the main pipeline 2 and the sub-pipeline 3, as shown in FIG. The branch pipe 3 is mounted on the second connecting portion 12 .

Example 2

As shown in FIGS. 5-6 , the main difference between this embodiment and Embodiment 1 is that, in this embodiment, an annular step 122 is provided outside the end of the second connecting portion 12 of the adapter 1 . The function is that when the end of the second connecting portion 12 is inserted into the sub-pipe 3, on the one hand, it can abut against the open end of the sub-pipe 3, and on the other hand, it is convenient to weld and fix the connection.

Example 3

As shown in FIGS. 7-8 , the main difference between this embodiment and Embodiment 1 is that, in this embodiment, the main body portion 14 of the adapter 1 is an elbow structure. Since the extension direction of the sub-pipeline 3 on the main pipe 2 has various forms, in this embodiment, the main body 14 of the adapter 1 is set as a bent pipe structure, which is convenient for reasonable selection according to the extension direction of the sub-pipeline 3 .

Example 4

As shown in Figures 9-10, the main difference between this embodiment and Embodiment 1 is that, in this embodiment, the adapter 1 includes a first connecting part 11 and two second connecting parts 12, and two second connecting parts The parts 12 are respectively connected with one sub-pipeline 3, which is suitable for the situation that two sub-pipes 3 are connected at one opening.

In other embodiments, the adapter 1 may also be provided with three or more second connection parts 12 .

The conversion joint 1 of the utility model is mainly used to connect the main pipe 2 and the branch pipe 3 of the air conditioning pipeline. The main pipe 2 is punched, the bending and cutting process related to the sub-pipe 3 has been completed, the matching adapter 1 is prepared, and the matching tooling is used to weld the main pipe 2, the adapter 1 and the sub-pipe 3 at the same time. in the connected position. Thus, the confluence or shunting of refrigerant gas or liquid in the pipeline is ensured during the working process of the automobile air-conditioning system.

Although the specific embodiments of the present invention are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims (8)

1. A conversion joint is used for connecting branch pipelines to a main pipeline and is characterized by comprising a first connecting part and a plurality of second connecting parts, wherein a through hole penetrating through the first connecting part and the second connecting parts is arranged in the conversion joint;

the end part of the second connecting part is provided with an inserting part which is used for being fixedly inserted into the branch pipeline and enabling the through hole to be communicated with the inside of the branch pipeline.

2. The adapter according to claim 1, wherein a body portion is disposed between the first and second connection portions, the body portion having a straight tube configuration or an elbow configuration.

3. The adapter of claim 1, wherein said arcuate open slots extend through opposite sidewalls of said first connector portion and communicate with said through bore.

4. The adapter as claimed in claim 1, wherein the end of the second connecting portion is provided with a groove, and the through-hole communicates with the groove, and communicates with the inside of the branched pipe when the branched pipe is inserted into the groove.

5. The adapter as claimed in claim 4, wherein an inner diameter of said groove is not less than an outer diameter of said branch pipe.

6. The adapter as claimed in claim 5, wherein the bore diameter of said through bore is not greater than the inner diameter of said branch conduit.

7. The adapter of claim 4, wherein the cross-sections of the through-hole and the groove are circular, and the centers of the circular cross-sections at the junction of the through-hole and the groove are at the same point.

8. A connection structure of a main pipeline and branch pipelines, characterized by comprising the adapter according to any one of claims 1-7, wherein the first connecting portion of the adapter is mounted on the main pipeline, and the branch pipelines are mounted on the second connecting portion.

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