U-shaped tee joint

Abstract

The utility model relates to the technical field of U-shaped tee joints, and discloses a U-shaped tee joint which comprises a clamping and pressing connector and a one-way elbow, the clamping and pressing connector is fixedly connected with the one-way elbow, an external thread connector used for being connected with a gas pipeline is arranged at the tail end of the one-way elbow, and the one-way elbow is a one-way external thread elbow. The 90-degree one-way external thread elbow is connected with the clamping and pressing connector, the clamping and pressing connector is a middle opening clamping and pressing connector, the one-way elbow is welded to the outer portion of an opening of the middle opening clamping and pressing connector, and the pipe diameter of the one-way elbow is smaller than that of the clamping and pressing connector. By means of the structure, 90-degree steering of the pipeline can be achieved under the condition that no extra elbow is added, no extra elbow needs to be installed, the number of pressure connectors is reduced, the leakage risk is reduced, and a simpler, more convenient and safer installation mode is achieved through cooperation of threaded connection and other gas pipelines.

Description

Technical Field

[0001] This application belongs to the technical field of U-shaped tee fittings and relates to a U-shaped tee fitting. Background Technology

[0002] In the process of realizing this invention, the inventors discovered that the prior art has at least the following problems: In the field of gas, during installation, traditional press-fit tee fittings need to be press-fitted at all three ports, and then a 90-degree male thread adapter is needed to connect to the tee fitting, and then to connect to other gas pipelines. This assembly method is relatively cumbersome, with many press-fit interfaces, which increases the risk of gas leakage, and also increases the complexity and time cost of installation.

[0003] Therefore, how to provide a U-shaped tee that can achieve 90° turning and reduce the number of crimped interfaces has become an urgent technical problem to be solved. Utility Model Content

[0004] To overcome the problems existing in related technologies, this application aims to provide a U-shaped tee that can achieve 90° turning and reduce the number of crimped interfaces.

[0005] This application is achieved through the following technical solution.

[0006] This technical solution provides a U-shaped tee, including: a crimp connector and a one-way elbow, wherein the crimp connector is fixedly connected to the one-way elbow, and the tail end of the one-way elbow is provided with an external threaded connector for connecting a gas pipeline.

[0007] The one-way elbow is a 90° one-way external thread elbow, the crimping connector is a center-port crimping connector, the one-way elbow is welded to the outside of the opening of the center-port crimping connector, and the pipe diameter of the one-way elbow is smaller than the pipe diameter of the crimping connector.

[0008] The present invention is further configured to include an adapter and a sealing ring, wherein the adapter is welded to the outside of the opening of the intermediate port crimp connector, and the diameter of the adapter is smaller than the diameter of the crimp connector.

[0009] The present invention is further configured such that at least one groove is provided inside the adapter, and a corresponding groove is provided on the outside of the one-way elbow. The sealing ring is sleeved on the outside of the groove, and the height of the sealing ring is greater than the height of the groove to achieve an interference fit.

[0010] The present invention is further configured such that the adapter and the one-way elbow are fixed by a clamping method, and the outer diameter of the one-way elbow is equal to the inner diameter of the adapter.

[0011] The present invention is further configured such that the adapter and the one-way elbow are fixed by welding, the outer diameter of the one-way elbow is equal to the inner diameter of the adapter, and / or the pipe diameter of the one-way elbow is equal to the pipe diameter of the adapter.

[0012] The present invention is further configured such that a valve is provided inside the adapter for sealing the adapter.

[0013] The present invention is further configured such that both the adapter and the external threaded connector are made of stainless steel.

[0014] The present invention is further configured such that the adapter is made of stainless steel and the external threaded connector is made of synthetic plastic.

[0015] The above technical solution has the following technical effects: by designing the press-fit tee fitting and the 90° one-way external threaded elbow as an integrated structure, the pipeline can achieve a 90° turn without adding additional elbows, eliminating the need for additional elbow installation, reducing the number of press-fit joints, lowering the risk of leakage, and achieving a simpler and safer installation method by using threaded connections with other gas pipelines. It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this application. Attached Figure Description

[0016] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0017] Figure 1 This is a schematic diagram of the structure shown in one embodiment of this application;

[0018] Figure 2 This is a front view shown in one embodiment of this application;

[0019] Figure 3 This is a cross-sectional view shown in one embodiment of this application.

[0020] Reference numerals: 1. Press-fit connector; 2. One-way elbow; 3. Male threaded connector; 4. Adapter; 5. Sealing ring. Detailed Implementation

[0021] The technical solutions of some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a U-shaped tee, such as Figures 1-3 As shown, it includes: a crimp connector 1 and a one-way elbow 2. The crimp connector 1 is fixedly connected to the one-way elbow 2. The tail end of the one-way elbow 2 is provided with an external threaded connector 3 for connecting a gas pipeline.

[0024] One-way elbow 2 uses a 90° one-way male thread elbow, and crimp fitting 1 uses a center-port crimp fitting. One-way elbow 2 is welded to the outside of the opening of the center-port crimp fitting. The pipe diameter of one-way elbow 2 is smaller than the pipe diameter of crimp fitting 1.

[0025] It should be noted that the U-shaped small and medium male thread crimp tee is designed with a U-shaped structure, with crimp interfaces at both ends and the middle section for pipe flow. The small and medium male thread crimp tee with elbow has a male thread interface at one end and a crimp interface at the other end, with the middle section also for pipe flow, and a 90° elbow is designed at one end.

[0026] During installation, first, connect the male threaded connector 3 of the small-to-medium male threaded crimp tee with the elbow to one end of the gas pipeline and tighten it with a wrench to ensure a seal. Then, crimp the crimp connectors at both ends of the crimp connector 1 to the interfaces of the other two gas pipeline sections. After pressing the outer convex rings of the fitting with a special crimping tool, a sealed connection between the fitting and the pipeline is formed.

[0027] like Figure 3 As shown, it also includes an adapter 4 and a sealing ring 5. The adapter 4 is welded to the outside of the opening of the intermediate port crimp connector, and the pipe diameter of the adapter 4 is smaller than the pipe diameter of the crimp connector 1.

[0028] It should be noted that adding adapter 4 can increase the overlap area between it and one-way elbow 2, so as to achieve a seal by engaging with the sealing ring, or by welding, thereby increasing the sealing performance of the connection between the structures and improving the ease of installation.

[0029] like Figure 3 As shown, the adapter 4 has at least one groove inside, and the one-way elbow 2 has a corresponding groove on the outside. The sealing ring 5 is fitted outside the groove, and the height of the sealing ring 5 is greater than the height of the groove to achieve an interference fit.

[0030] like Figure 2 and Figure 3 As shown, the adapter 4 and the one-way elbow 2 are fixed by a clamping method, and the outer diameter of the one-way elbow 2 is equal to the inner diameter of the adapter 4.

[0031] It should be noted that after sealing the adapter 4 and the one-way elbow 2 with the sealing ring 5, the tail end of the adapter 4 can be pressed with the one-way elbow 2 using a pressing tool to further compress the sealing ring 5 and improve the sealing performance.

[0032] like Figures 1-3 As shown, the adapter 4 and the one-way elbow 2 are fixed by welding. The outer diameter of the one-way elbow 2 is equal to the inner diameter of the adapter 4, and / or the pipe diameter of the one-way elbow 2 is equal to the pipe diameter of the adapter 4.

[0033] like Figures 1-3 As shown, the adapter 4 has a valve inside, which is used to close the adapter 4.

[0034] like Figures 1-3 As shown, both adapter 4 and male threaded connector 4 are made of stainless steel.

[0035] like Figures 1-3 As shown, adapter 4 is made of stainless steel, and male threaded connector 4 is made of synthetic plastic.

[0036] Working principle: By designing the press-fit tee fitting and the 90° one-way external threaded elbow into an integrated structure, the pipeline can achieve a 90° turn without adding extra elbows. This reduces the number of press-fit joints, lowers the risk of leakage, and allows for a simpler and safer installation method when used with other gas pipelines via threaded connections.

[0037] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A U-shaped tee, characterized in that, include: A crimping connector (1) and a one-way elbow (2) are provided. The crimping connector (1) and the one-way elbow (2) are fixedly connected. The tail end of the one-way elbow (2) is provided with an external threaded connector (3) for connecting a gas pipeline. The one-way elbow (2) uses a 90° one-way external thread elbow, the crimping connector (1) uses a center-port crimping connector, the one-way elbow (2) is welded to the outside of the opening of the center-port crimping connector, and the pipe diameter of the one-way elbow (2) is smaller than the pipe diameter of the crimping connector (1).

2. The U-shaped tee according to claim 1, characterized in that, It also includes an adapter (4) and a sealing ring (5), the adapter (4) being welded to the outside of the opening of the intermediate port crimp connector, and the diameter of the adapter (4) being smaller than the diameter of the crimp connector (1).

3. The U-shaped tee according to claim 2, characterized in that, The adapter (4) has at least one groove inside, and the one-way elbow (2) has a corresponding groove on the outside. The sealing ring (5) is fitted outside the groove, and the height of the sealing ring (5) is greater than the height of the groove to achieve an interference fit.

4. The U-shaped tee according to claim 3, characterized in that, The adapter (4) and the one-way elbow (2) are fixed by a clamping method, and the outer diameter of the one-way elbow (2) is equal to the inner diameter of the adapter (4).

5. The U-shaped tee according to claim 2, characterized in that, The adapter (4) is fixed to the one-way elbow (2) by welding. The outer diameter of the one-way elbow (2) is equal to the inner diameter of the adapter (4), and / or the pipe diameter of the one-way elbow (2) is equal to the pipe diameter of the adapter (4).

6. The U-shaped tee according to claim 5, characterized in that, The adapter (4) is equipped with a valve inside for closing the adapter (4).

7. The U-shaped tee according to claim 2, characterized in that, Both the adapter (4) and the external threaded connector (3) are made of stainless steel.

8. The U-shaped tee according to claim 2, characterized in that, The adapter (4) is made of stainless steel, and the external thread connector (3) is made of synthetic plastic.

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