Pipe joint and mounting method therefor

By designing a multi-port pipe joint structure, the problem of inconvenient welding of welded pipe joints was solved, achieving flexible welding sequence and good sealing performance, thus improving connection efficiency and airtightness.

WO2026020647A1PCT designated stage Publication Date: 2026-01-29SUZHOU KUERXIN TECHNOLOGY CO LTD
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Patent Information

Application Number
PCT/CN2024/131504
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-26
Filing Date
2024-11-12
Publication Date
2026-01-29

AI Technical Summary

Technical Problem

Existing welded pipe fittings are inconvenient to weld, making it difficult to flexibly adjust the welding sequence. They can easily damage adjacent components, affecting connection efficiency and sealing performance.

Method used

Design a pipe fitting, including a fitting housing and an inner core. The housing has multiple connection ports and an upper opening, and the inner core seals the upper opening. The welding sequence can be flexibly adjusted, with the connection ports of the housing first welded to the components, and then the upper opening sealed.

Benefits of technology

It improves the flexibility of welding operations and sealing performance, simplifies the welding process, and enhances connection efficiency and airtightness.

✦ Generated by Eureka AI based on patent content.

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Abstract

A pipe joint and a mounting method therefor, relating to the technical field of pipe connection. The pipe joint comprises a joint housing (11) and a core (12). A first connection port (111) is formed in the bottom surface of the joint housing (11). At least one second connection port (112) is formed in the side wall of the joint housing (11). An upper opening (113) is formed in the top surface of the joint housing (11). The upper opening (113), the first connection port (111), and the second connection port (112) are all communicated with an inner cavity of the joint housing (11). When the core (12) is connected to the upper opening (113) and seals the upper opening (113), the first connection port (111) and the second connection port (112) are communicated by means of the inner cavity. The pipe joint has the advantages that the welding mode is more flexible, and the welding sequence can be adjusted according to requirements, so that the welding operation is more convenient, and the sealing performance of a welding part is ensured.
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Description

Pipe joint and installation method thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline connection, in particular to a pipe joint and installation method thereof. BACKGROUND

[0002] Pipe joints are common pipeline connection components in the field of fluid transportation, which are often used to connect pipelines or connect pipelines on hydraulic elements to ensure the sealing of the connection and the safety and effectiveness of the system.

[0003] Welded pipe joints generally have two ports arranged at 90°, as shown in FIG. 1. When connecting a pipeline to a container or a box, one port of the pipe joint is first welded to the pipeline and the other port is then welded to the container, or one port of the pipe joint is first welded to the container and the other port is then welded to the pipeline. However, due to the direction of the opening of the pipe joint, the welding is single and not easy to adjust. The end that is welded later can easily damage the adjacent components during welding, which is very inconvenient and affects the connection efficiency and the sealing performance of the welded part.

[0004] SUMMARY

[0005] The present application provides a pipe joint and installation method thereof to solve the problem of inconvenient welding operation of the pipe joint in the prior art. The pipe joint of the present application makes the welding method more flexible, which can adjust the welding sequence as needed, thereby making the welding operation more convenient and ensuring the sealing performance of the welded part.

[0006] The pipe joint provided by the present application comprises a joint outer shell and an inner core body. A first connecting port is arranged on the bottom surface of the joint outer shell, at least one second connecting port is arranged on the side wall of the joint outer shell, and an upper opening is arranged on the top surface of the joint outer shell. The upper opening, the first connecting port and the second connecting port are all in communication with the inner cavity of the joint outer shell. When the inner core body is connected to the upper opening and seals the upper opening, the first connecting port and the second connecting port are in communication through the inner cavity.

[0007] As a preferred scheme of the present application, a first inner through port corresponding to the first connecting port is arranged on the bottom surface of the inner core body, a second inner through port corresponding to the second connecting port is arranged on the side wall of the inner core body, and the top surface of the inner core body is closed at the upper opening. The first inner through port and the second inner through port are in communication inside the inner core body.

[0008] As a preferred scheme of the present application, the outer side wall of the inner core body is arranged against the inner cavity side wall of the joint outer shell, and the second inner through port has a downward opening U-shaped structure.

[0009] As a preferred scheme of the present application, the second connecting port is provided with two, and the two second connecting ports are respectively arranged on the opposite two sides of the joint outer shell body, and second inner through ports are arranged on the opposite two side walls of the inner core body, and the two second connecting ports are in communication with the first connecting port.

[0010] As a preferred scheme of the present application, the second connecting port is provided with three, and the three second connecting ports are respectively arranged on the three sides of the joint outer shell body, and second inner through ports are arranged on the three side walls of the inner core body, and the three second connecting ports are in communication with the first connecting port.

[0011] As a preferred scheme of the present application, the second connecting port is provided with four, and the four second connecting ports are respectively arranged on the four sides of the joint outer shell body, and second inner through ports are arranged on the four side walls of the inner core body, and the four second connecting ports are in communication with the first connecting port.

[0012] The present application further provides a mounting method of the pipe joint, characterized by comprising

[0013] Step A: welding the first connecting port and the second connecting port of the joint outer shell body with the interfaces of the first component and the second component respectively;

[0014] Step B: welding the inner core body at the upper opening and sealing the upper opening.

[0015] As a preferred scheme of the present application, the step A comprises

[0016] welding the first connecting port of the joint outer shell body with the first component, and then welding the second connecting port of the joint outer shell body with the second component,

[0017] or welding the second connecting port of the joint outer shell body with the second component, and then welding the first connecting port of the joint outer shell body with the first component.

[0018] As a preferred scheme of the present application, the first component is a container, and the second component is a pipeline.

[0019] As a preferred scheme of the present application, when the first connecting port of the joint outer shell body is welded with the first component, the welding gun head passes through the inner cavity from the upper opening of the joint outer shell body to the first connecting port.

[0020] Compared with the prior art, the present application has the following positive effects:

[0021] The pipe joint provided by the application comprises a joint outer shell and an inner core body, a first connecting port is arranged on the bottom surface of the joint outer shell, at least one second connecting port is arranged on the side wall of the joint outer shell, and an upper opening is arranged on the top surface of the joint outer shell; the upper opening, the first connecting port and the second connecting port are all communicated with the inner cavity of the joint outer shell; when the inner core body is connected to the upper opening and seals the upper opening, the first connecting port and the second connecting port are communicated through the inner cavity. When the pipe joint is used, the first connecting port and the second connecting port of the joint outer shell can be welded with different components respectively; when welding, the upper opening arranged on the joint outer shell provides convenience for the welding gun to be inserted into the joint outer shell for welding, so that the welding mode is more flexible, the welding sequence can be adjusted according to the requirement, so that the welding operation is more convenient, and the sealing performance of the welded part is ensured. After the welding of the joint outer shell and the external component is completed, the inner core body is covered on the upper opening and seals the upper opening, so that the air tightness of the pipe joint is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Fig. 1 is a structural schematic diagram of a pipe joint of the prior art;

[0024] Fig. 2 is an exploded view of the pipe joint of the present application when one second connecting port is arranged;

[0025] Fig. 3 is a structural schematic diagram of the pipe joint of the present application when one second connecting port is arranged;

[0026] Fig. 4 is an internal structure diagram of the pipe joint of the present application when one second connecting port is arranged;

[0027] Fig. 5 is an exploded view of the pipe joint of the present application when two second connecting ports are arranged;

[0028] Fig. 6 is a structural schematic diagram of the pipe joint of the present application when two second connecting ports are arranged;

[0029] Fig. 7 is an internal structure diagram of the pipe joint of the present application when two second connecting ports are arranged;

[0030] Fig. 8 is an exploded view of the pipe joint of the present application when three second connecting ports are arranged;

[0031] Fig. 9 is a structural schematic diagram of the pipe joint of the present application when three second connecting ports are arranged;

[0032] Fig. 10 is an internal structure diagram of the pipe joint of the present application with three second connecting ports;

[0033] Fig. 11 is an exploded view of the pipe joint of the present application with four second connecting ports;

[0034] Fig. 12 is a structure diagram of the pipe joint of the present application with four second connecting ports;

[0035] Fig. 13 is an internal structure diagram of the pipe joint of the present application with four second connecting ports;

[0036] Fig. 14 is a top view of the pipe joint of the present application with four second connecting ports;

[0037] Fig. 15 is a structure diagram of the joint outer shell and the pipe in the present application;

[0038] Fig. 16 is a structure diagram of the joint outer shell and the pipe and the container in the present application;

[0039] Fig. 17 is a structure diagram of the pipe joint and the pipe and the container in the present application.

[0040] In the drawings: 1, pipe joint; 11, joint outer shell; 111, first connecting port; 112, second connecting port; 113, upper opening; 12, inner core body; 121, first inner through port; 122, second inner through port; 2, second component; 3, first component; 4, third component. DETAILED DESCRIPTION

[0041] In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "front end", "back end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplification, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present application, it should also be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0044] Embodiment 1

[0045] The pipe joint provided by the embodiment comprises a joint outer shell 11 and an inner core 12. A first connecting port 111 is arranged on the bottom surface of the joint outer shell 11, and at least one second connecting port 112 is arranged on the side wall of the joint outer shell 11. The first connecting port 111 and the second connecting port 112 are respectively connected with different components, and the joint outer shell 11 plays a role of adapting. The axis of the first connecting port 111 is arranged perpendicularly to the axis of the second connecting port 112.

[0046] An upper opening 113 is arranged on the top surface of the joint outer shell 11. The upper opening 113, the first connecting port 111 and the second connecting port 112 are all in communication with the inner cavity of the joint outer shell 11. When the inner core 12 is connected to and seals the upper opening 113, the first connecting port 111 and the second connecting port 112 are in communication through the inner cavity, so that the fluid can flow out of the second connecting port 112 after flowing into the inner cavity of the joint outer shell 11 from the first connecting port 111, and the pipe joint realizes the role of fluid communication.

[0047] It should be noted that the joint outer shell 11 and the inner core 12 can be welded or detachably connected, as long as the inner core 12 is firmly connected with the joint outer shell 11 and can seal the upper opening 113.

[0048] In use, the first connecting port 111 and the second connecting port 112 of the pipe joint of the embodiment can be respectively welded with different components. Since the upper opening 113 is arranged on the joint outer shell 11, the upper opening provides convenience for the welding gun to be inserted into the joint outer shell 11 for welding, so that the welding mode is more flexible, and the welding sequence can be adjusted according to the needs, so that the welding operation is more convenient, and the sealing performance of the welded part is ensured. After the welding of the joint outer shell 11 and the external components is completed, the inner core 12 is covered at the upper opening 113 and seals the upper opening 113, so as to ensure the air tightness of the pipe joint.

[0049] The pipe joint of the embodiment can simplify the pipe joint welding process, improve the yield, and be more helpful for mass production.

[0050] In a preferred embodiment, a first inner through-hole 121 corresponding to the first connection port 111 is provided on the bottom surface of the inner core 12, and a second inner through-hole 122 corresponding to the second connection port is provided on the side wall of the inner core 12. The top surface of the inner core 12 is correspondingly closed at the upper opening 113, and the first inner through-hole 121 and the second inner through-hole 122 communicate inside the inner core 12. The internal channel of the inner core 12 has a smooth inner wall without sharp edges, reducing resistance to fluid flow.

[0051] As the fluid flows through the outer shell 11 of the connector, it passes through the interior of the inner core 12. The fluid flows into the inner cavity of the outer shell 11 from the first connection port 111, then into the interior of the inner core 12 from the first inner through port 121, and then flows out from the second inner through port 122 and the second connection port in sequence. The internal channels of the inner core 12 provide a guiding effect for the flow of fluid, reduce the disturbance to the fluid, and make the fluid flow more smoothly.

[0052] In a preferred embodiment, the inner core 12 has a rectangular block structure, with its outer sidewall abutting against the inner wall of the connector housing 11. The second inner opening 122 has a downward-opening U-shaped structure. The connector housing 11 is cubic in shape. The bottom end of the inner core 12 abuts against the bottom surface of the inner cavity of the housing 11, making it easier to position the inner core 12 when connected to the connector housing 11, resulting in a more secure connection.

[0053] In addition, a foolproof mark is provided on the outside of the inner core 12. The foolproof mark can be a pattern or a prominent color mark, which makes it easy to align the first connection port 111 with the first inner through port 121 and the second connection port with the corresponding second inner through port 122, thereby improving the connection efficiency.

[0054] In a preferred embodiment, two second connection ports 112 are provided, each located on a opposite side of the connector housing 11. A second inner through-hole 122 is provided on opposite side walls of the inner core 12. Both second connection ports 112 communicate with the first connection port 111. The axes of the two second connection ports 112 are collinear.

[0055] The two second connection ports 112 can be connected to two different components respectively, at which point the pipe fitting functions as a tee.

[0056] In a preferred embodiment, three second connection ports 112 are provided, each located on one of the three sides of the connector housing 11. A second inner through-hole 122 is provided on each of the three side walls of the inner core 12, and all three second connection ports 112 communicate with the first connection port 111. The axes of two second connection ports 112 are collinear, while the axis of the third second connection port 112 is perpendicular to this straight line.

[0057] The three second connecting ports 112 can be connected with three different components respectively, and the pipe joint realizes the function of a four-way joint.

[0058] As a preferred embodiment, four second connecting ports 112 are provided, and the four second connecting ports 112 are arranged on the four sides of the joint outer shell 11. Second inner ports 122 are arranged on the four side walls of the inner core 12, and the four second connecting ports 112 are in communication with the first connecting port 111. Among them, the axes of two second connecting ports 112 are on the same straight line, and the axes of the other two second connecting ports 112 are on the same straight line.

[0059] The four second connecting ports 112 can be connected with four different components respectively, and the pipe joint realizes the function of a five-way joint.

[0060] The embodiment also provides a pipe joint mounting method, as shown in FIGS. 15-17, which comprises

[0061] Step A: The first connecting port 111 and the second connecting port 112 of the joint outer shell 11 are respectively welded with the interfaces of the first component 3 and the second component 2. Among them, the first component 3 and the second component 2 can be the same component or different components. As shown in FIG. 16.

[0062] Step B: The inner core 12 is welded at the upper opening 113 and seals the upper opening 113, so as to ensure the sealing performance of the pipe joint. As shown in FIG. 17.

[0063] As a preferred embodiment, step A comprises

[0064] The first connecting port 111 of the joint outer shell 11 is welded with the first component 3, and then the second connecting port 112 of the joint outer shell 11 is welded with the second component 2.

[0065] Or the second connecting port 112 of the joint outer shell 11 is welded with the second component 2, and then the first connecting port 111 of the joint outer shell 11 is welded with the first component 3.

[0066] Among them, the welding sequence of the first connecting port 111 and the second connecting port 112 of the joint outer shell 11 with the first component 3 and the second component 2 can be adjusted according to requirements.

[0067] As shown in FIG. 15 and FIG. 16, as a preferred embodiment, the first component 3 is a container, and the second component 2 is a pipe. The first component 3 can be a box shape. The second connecting port 112 of the joint outer shell 11 is welded to the pipe first, and then the first connecting port 111 of the joint outer shell 11 is welded to the container. Alternatively, the first connecting port 111 of the joint outer shell 11 can be welded to the container first, and then the second connecting port 112 of the joint outer shell 11 is welded to the pipe.

[0068] As a preferred embodiment, when the first connecting port 111 of the joint outer shell 11 is welded to the first component 3, the welding gun head passes through the inner cavity of the joint outer shell 11 from the upper opening 113 to the first connecting port 111.

[0069] When the first connecting port 111 of the joint outer shell 11 is welded to the container, the welding gun can be inserted into the inner cavity of the joint outer shell 11 to weld the first connecting port 111 to the container, thereby facilitating the welding operation.

[0070] As shown in FIG. 15-FIG. 17, the second component 3 and the third component 4 can be containers, and two pipe joints can be provided on the second component 3 and the third component 4 respectively, and the first component 2 can be a sealed pipe connecting the two pipe joints. The connection system can be used for gas delivery or liquid delivery.

[0071] The above only describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make several modifications and improvements without departing from the inventive concept, which should be covered by the protection scope of the present application.

Claims

1. A pipe joint, characterized in that The joint shell (11) and the inner core (12) are provided with a first connecting port (111) on the bottom surface of the joint shell (11), at least one second connecting port (112) on the side wall of the joint shell (11), and an upper opening (113) on the top surface of the joint shell (11), the upper opening (113), the first connecting port (111) and the second connecting port (112) all communicate with the inner cavity of the joint shell (11), and when the inner core (12) is connected to and seals the upper opening (113), the first connecting port (111) and the second connecting port (112) communicate through the inner cavity.

2. A pipe joint according to claim 1, characterised in that A first inner through port (121) corresponding to the first connecting port (111) is provided on the bottom surface of the inner core (12), a second inner through port (122) corresponding to the second connecting port is provided on the side wall of the inner core (12), and the top surface of the inner core (12) is closed at the upper opening (113), and the first inner through port (121) and the second inner through port (122) communicate inside the inner core (12).

3. A pipe joint according to claim 2, characterised in that The outer side wall of the inner core (12) is arranged against the inner cavity side wall of the joint shell (11), and the second inner through port (122) is in a downward opening U-shaped structure.

4. A pipe joint according to claim 2, wherein The second connecting port (112) is provided with two, and the two second connecting ports (112) are respectively arranged on the opposite two side surfaces of the joint shell (11), and the second inner through port (122) is arranged on the opposite two side walls of the inner core (12), and the two second connecting ports (112) all communicate with the first connecting port (111).

5. A pipe joint according to claim 2, wherein The second connecting port (112) is provided with three, and the three second connecting ports (112) are respectively arranged on the three side surfaces of the joint shell (11), and the second inner through port (122) is arranged on the three side walls of the inner core (12), and the three second connecting ports (112) all communicate with the first connecting port (111).

6. A pipe joint according to claim 2, wherein The second connecting port (112) is provided with four, and the four second connecting ports (112) are respectively arranged on the four side surfaces of the joint shell (11), and the second inner through port (122) is arranged on the four side walls of the inner core (12), and the four second connecting ports (112) all communicate with the first connecting port (111).

7. A method of installing a pipe joint according to any one of claims 1 to 6, characterised in that, The joint shell (11) and the inner core (12) are provided with a first connecting port (111) on the bottom surface of the joint shell (11), at least one second connecting port (112) on the side wall of the joint shell (11), and an upper opening (113) on the top surface of the joint shell (11), the upper opening (113), the first connecting port (111) and the second connecting port (112) all communicate with the inner cavity of the joint shell (11), and when the inner core (12) is connected to and seals the upper opening (113), the first connecting port (111) and the second connecting port (112) communicate through the inner cavity. The step A includes welding the first connecting port (111) of the joint shell (11) with the first component (3), and then welding the second connecting port (112) of the joint shell (11) with the second component (2), 8. The method of installing a pipe joint according to claim 7, wherein, ​ ​ or welding the second connecting port (112) of the joint outer shell (11) with the second component (2), and then welding the first connecting port (111) of the joint outer shell (11) with the first component (3).

9. The method of installing a pipe joint according to claim 8, wherein, The first component (3) is a container, and the second component (2) is a pipeline.

10. The method of installing a pipe joint according to claim 8, wherein, When the first connecting port (111) of the joint outer shell (11) is welded with the first component (3), a welding gun head passes through the inner cavity from the upper opening (113) of the joint outer shell (11) to the first connecting port (111).

Citation Information

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