A manifold structure with independent shut-off function

By designing a branch pipe structure with independent shut-off function, and using components such as valve body and valve core to achieve independent control of fluid, the problem of low efficiency of existing branch pipes when they are under partial maintenance or not in use is solved, thereby improving work efficiency and reducing costs.

CN224566973UActive Publication Date: 2026-07-28FUZHOU ZHENXIE PIPE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUZHOU ZHENXIE PIPE
Filing Date
2025-07-02
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing branch pipes cannot achieve independent shut-off when there is partial maintenance or partial non-use, which requires the entire pipeline to be suspended or partially blocked, resulting in high costs and low efficiency.

Method used

Design a manifold structure with independent shut-off function, which includes a valve body, adjusting knob, mounting valve core, sealing groove, sealing ring and ball valve body working together to achieve independent control of fluid. Through the combination of tee pipe, check valve core, connecting bend and branch pipe, it ensures flexible distribution of fluid in multiple directions and unidirectional flow.

Benefits of technology

It enables independent shut-off function of the branch pipe, improves working efficiency, reduces maintenance and plugging costs, prevents fluid leakage, and ensures smooth and unidirectional fluid flow.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a branch pipe technical field especially has independent cut -off function's branch pipe structure, including the three -way pipe, the lateral surface fixed connection of three -way pipe has the connecting elbow, the last fixed connection of connecting elbow has the connecting flange, the top of valve body is provided with the adjusting knob, the bottom fixed connection of adjusting knob has the installation valve core, through setting valve body, adjusting knob, installation valve core, sealing groove, sealing ring and the cooperation of ball valve body, realized the independent cut -off function of branch pipe, solved actual use process, the whole project exists partial non -use or partial maintenance time, need not to carry out the vacuumizing to whole pipeline or to the pipeline and carry out the plugging, thereby improved work efficiency, reduced cost, can control the opening and the close of valve core through the rotation adjusting knob, the cooperation of installation valve core and ball valve body, ensure the smooth flow of fluid in the pipeline, set up sealing groove and sealing ring on the installation valve core surface, effectively prevented the fluid leakage problem.
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Description

Technical Field

[0001] This utility model relates to the field of manifold technology, specifically a manifold structure with independent shut-off function. Background Technology

[0002] A branch pipe is a type of pipe used in the installation of central air conditioning systems. Its main function is to distribute the refrigerant in the pipes to the indoor units in a multi-split central air conditioning system, thus playing a role in refrigerant distribution.

[0003] Existing technologies, such as CN211146987U, describe a prefabricated air conditioning branch pipe. In the assembly of this utility model, the prefabricated air conditioning branch pipe can be assembled into the required air conditioning branch pipe simply by connecting the tee pipe and the branch pipe component through threads, which greatly improves the installation efficiency of the air conditioning branch pipe.

[0004] However, this manifold still has some shortcomings in its use:

[0005] The existing branch pipes all have one inlet pipe and two outlet pipes. All three pipes are through-hole structures. In actual use, if there is a need for partial maintenance of the refrigeration piping or temporary discontinuation of a section, the existing branch pipes cannot meet the actual needs of customers.

[0006] During partial repairs, the entire refrigeration piping system must be taken out of service to remove refrigerant and vacuum the system. If a section is not in use, the end of the section that was not in use must be sealed. Cutting and welding will be very costly when the system is put back into service. Utility Model Content

[0007] The purpose of this utility model is to provide a branch pipe structure with an independent shut-off function, in order to solve the problem mentioned in the background art that the existing branch pipes all have one inlet pipe and two outlet pipes, and all three pipes are through-hole structures. In actual use, if the refrigeration pipeline needs to be partially repaired or temporarily not put into use, the existing branch pipes cannot meet the actual customer needs. During partial repair, the entire refrigeration pipeline can only be suspended for refrigerant removal, vacuuming, etc. In the case of partial non-use, the end of the non-used area can only be sealed. When it is put back into use, cutting and welding will consume a lot of costs.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A branch pipe structure with independent shut-off function includes a tee pipe, a connecting elbow fixedly connected to the side of the tee pipe, a connecting flange fixedly connected to the end of the connecting elbow, a valve body fixedly connected to the side of the connecting flange, an adjusting knob provided on the top of the valve body, a mounting valve core fixedly connected to the bottom of the adjusting knob, the mounting valve core extending into the valve body and rotatably connected to the valve body, a ball valve body fixedly connected to the bottom of the mounting valve core, the ball valve body located in the valve body, a sealing groove formed on the outer surface of the mounting valve core, a sealing ring fixedly connected in the sealing groove, and a positioning tube fixedly connected to the side of the valve body.

[0010] As a preferred embodiment of this utility model, a guide tube is fixedly connected to the top of the positioning tube, the guide tube and the positioning tube are in communication, an installation button is provided at the top of the guide tube, a one-way valve core is fixedly connected to the bottom of the installation button, the one-way valve core passes through the guide tube and extends into the positioning tube, and the installation button is rotatably connected to the guide tube.

[0011] As a preferred embodiment of this utility model, a branch pipe is fixedly connected to the side of the tee pipe, the branch pipe is located on the side of the connecting bend pipe, and a second connecting pipe is fixedly connected to the end of the branch pipe, the second connecting pipe being in communication with the branch pipe.

[0012] As a preferred embodiment of this utility model, a branch inlet pipe is fixedly connected to the side of the tee pipe, the branch inlet pipe is positioned opposite to the branch pipe and the connecting bend pipe, and a first connecting pipe is fixedly connected to the end of the branch inlet pipe.

[0013] As a preferred embodiment of this utility model, a third connecting tube is fixedly connected to the end of the positioning tube, and the third connecting tube is the same as the positioning tube.

[0014] As a preferred embodiment of this utility model, two guide gaskets are provided in the valve body, and the ball valve body is located between the two guide gaskets.

[0015] As a preferred embodiment of this utility model, the connecting bend and the positioning pipe are connected, and the branch inlet pipe, the branch branch pipe and the connecting bend are connected.

[0016] As a preferred embodiment of this utility model, the first connecting pipe, the second connecting pipe, and the third connecting pipe have the same diameter, and the three-way pipe is made of brass and copper, with most of it made of copper and a small portion made of brass.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, by setting up a valve body, adjusting knob, installing valve core, sealing groove, sealing ring and ball valve body in cooperation, the independent shut-off function of the branch pipe is realized. In actual use, when there are parts of the whole project that are not in use or undergo partial maintenance, there is no need to vacuum or block the entire pipeline, thereby improving work efficiency and reducing costs. The opening and closing of the valve core can be controlled by rotating the adjusting knob. The cooperation between the installing valve core and the ball valve body ensures the smooth flow of fluid in the pipeline. The sealing groove and sealing ring are set on the surface of the installing valve core to effectively prevent fluid leakage.

[0019] 2. In this utility model, by using a three-way pipe, a one-way valve core, a branch inlet pipe, a connecting bend pipe, and a branch branch pipe in combination, the three-way pipe connects the branch inlet pipe, the connecting bend pipe, and the branch branch pipe, realizing flexible distribution of fluid in multiple directions. The one-way valve core facilitates unidirectional flow of fluid in a specific direction, effectively avoiding problems caused by fluid backflow. The design of the connecting bend pipe not only meets the needs of pipeline layout but also ensures smooth flow of fluid at bends, reducing fluid resistance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall exploded structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the end structure of the connecting bend of this utility model;

[0022] Figure 3 This is a schematic diagram of the side structure of the T-pipe of this utility model;

[0023] Figure 4 This is a schematic diagram of the branch pipe structure of this utility model.

[0024] In the diagram: 1. Tee; 2. Valve body; 3. Branch pipe; 4. Branch inlet pipe; 5. Connecting bend; 6. First connecting pipe; 7. Second connecting pipe; 8. Third connecting pipe; 9. Adjusting knob; 10. Installing valve core; 11. Sealing ring; 12. Sealing groove; 13. Ball valve body; 14. Guide gasket; 15. Installing knob; 16. Guide tube; 17. Positioning tube; 18. Check valve core; 19. Connecting flange. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] For examples, please refer to Figures 1-4 This utility model provides a technical solution:

[0027] A branch pipe structure with independent shut-off function includes a tee pipe 1, a connecting bend 5 fixedly connected to the side of the tee pipe 1, a connecting flange 19 fixedly connected to the end of the connecting bend 5, a valve body 2 fixedly connected to the side of the connecting flange 19, an adjusting knob 9 provided on the top of the valve body 2, a mounting valve core 10 fixedly connected to the bottom of the adjusting knob 9, the mounting valve core 10 extending into the valve body 2 and rotatably connected to the valve body 2, a ball valve body 13 fixedly connected to the bottom of the mounting valve core 10, the ball valve body 13 located inside the valve body 2, a sealing groove 12 opened on the outer surface of the mounting valve core 10, a sealing ring 11 fixedly connected in the sealing groove 12, a positioning tube 17 fixedly connected to the side of the valve body 2, a branch pipe 3 fixedly connected to the side of the tee pipe 1, the branch pipe 3 located on the side of the connecting bend 5, a second connecting pipe 7 fixedly connected to the end of the branch pipe 3, the second connecting pipe 7 communicating with the branch pipe 3.

[0028] The opening and closing states of the ball valve body 13 can be controlled by operating the adjustment knob 9.

[0029] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a guide tube 16 is fixedly connected to the top of the positioning tube 17, and the guide tube 16 communicates with the positioning tube 17. A mounting button 15 is provided at the top of the guide tube 16, and a one-way valve core 18 is fixedly connected to the bottom of the mounting button 15. The one-way valve core 18 passes through the guide tube 16 and extends into the positioning tube 17. The mounting button 15 is rotatably connected to the guide tube 16. A branch inlet pipe 4 is fixedly connected to the side of the three-way pipe 1. The branch inlet pipe 4 is positioned opposite to the branch branch pipe 3 and the connecting bend pipe 5. A first... The end of the connecting pipe 6 and the positioning pipe 17 is fixedly connected to the third connecting pipe 8, which is the same as the positioning pipe 17. Two guide gaskets 14 are provided inside the valve body 2. The ball valve body 13 is located between the two guide gaskets 14. The connecting bend 5 and the positioning pipe 17 are connected. The branch inlet pipe 4, the branch branch pipe 3 and the connecting bend 5 are connected. The first connecting pipe 6, the second connecting pipe 7 and the third connecting pipe 8 have the same diameter. The tee pipe 1 is made of brass and copper, mostly copper and a small part of brass.

[0030] Among them, the one-way valve core 18 can effectively prevent fluid backflow and ensure the one-way flow of fluid.

[0031] The working process of this utility model is as follows: When using the branch pipe structure with independent shut-off function designed in this solution, first check whether the branch pipe is working properly, and ensure that all components are intact and tightly connected. By operating the adjustment knob 9, the opening and closing state of the ball valve body 13 can be controlled. When it is necessary to supply fluid to a specific branch, open the corresponding ball valve body 13, and the fluid can enter the valve body 2 through the three-way pipe 1, and then flow through the branch pipe 3 or the branch inlet pipe 4 to the designated connecting bend 5, the first connecting pipe 6, the second connecting pipe 7 or the third connecting pipe 8. During this process, the one-way valve core 18 can effectively prevent fluid backflow and ensure the one-way flow of fluid. In addition, the use of the valve core 10 in conjunction with the sealing ring 11 and the sealing groove 12 can further enhance the sealing performance of the structure and prevent fluid leakage.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A branch pipe structure with independent shut-off function, comprising a tee pipe (1), characterized in that: A connecting elbow (5) is fixedly connected to the side of the three-way pipe (1), and a connecting flange (19) is fixedly connected to the end of the connecting elbow (5). A valve body (2) is fixedly connected to the side of the connecting flange (19). An adjusting knob (9) is provided on the top of the valve body (2). A valve core (10) is fixedly connected to the bottom of the adjusting knob (9). The valve core (10) extends into the valve body (2) and is rotatably connected to the valve body (2). A ball valve body (13) is fixedly connected to the bottom of the valve core (10). The ball valve body (13) is located inside the valve body (2). A sealing groove (12) is provided on the outer surface of the valve core (10). A sealing ring (11) is fixedly connected in the sealing groove (12). A positioning tube (17) is fixedly connected to the side of the valve body (2).

2. The branch pipe structure with independent shut-off function according to claim 1, characterized in that, The top of the positioning tube (17) is fixedly connected to a guide tube (16), which communicates with the positioning tube (17). The top of the guide tube (16) is provided with an installation button (15), and the bottom of the installation button (15) is fixedly connected to a one-way valve core (18). The one-way valve core (18) passes through the guide tube (16) and extends into the positioning tube (17). The installation button (15) is rotatably connected to the guide tube (16).

3. A branch pipe structure with independent shut-off function according to claim 1, characterized in that, A branch pipe (3) is fixedly connected to the side of the tee pipe (1). The branch pipe (3) is located on the side of the connecting bend pipe (5). A second connecting pipe (7) is fixedly connected to the end of the branch pipe (3). The second connecting pipe (7) is connected to the branch pipe (3).

4. A branch pipe structure with independent shut-off function according to claim 1, characterized in that, The side of the three-way pipe (1) is fixedly connected to the branch inlet pipe (4), the branch inlet pipe (4) is opposite to the branch branch pipe (3) and the connecting bend pipe (5), and the end of the branch inlet pipe (4) is fixedly connected to the first connecting pipe (6).

5. A branch pipe structure with independent shut-off function according to claim 1, characterized in that, The end of the positioning tube (17) is fixedly connected to a third connecting tube (8), which is the same as the positioning tube (17).

6. A branch pipe structure with independent shut-off function according to claim 1, characterized in that, The valve body (2) is provided with two guide gaskets (14), and the ball valve body (13) is located between the two guide gaskets (14).

7. A branch pipe structure with independent shut-off function according to claim 1, characterized in that, The connecting bend (5) and the positioning pipe (17) are connected, and the branch inlet pipe (4), the branch branch pipe (3) and the connecting bend (5) are connected.

8. A branch pipe structure with independent shut-off function according to claim 4, characterized in that, The first connecting pipe (6), the second connecting pipe (7) and the third connecting pipe (8) have the same diameter. The three-way pipe (1) is made of brass and copper, mostly copper and a small part of brass.