Anti-overflow pipeline three-way connector

By incorporating a guide port and a tapered drain pipe design in the tee connector, the problem of blockage caused by inaccurate inlet installation is solved, thereby improving water flow and drainage efficiency.

CN223953581UActive Publication Date: 2026-02-27张进忠
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Patent Information

Application Number
CN202520688075.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-02-27
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing tee fittings are prone to clogging when the water inlet is not installed accurately, causing liquid overflow or backflow.

Method used

An overflow prevention tee joint was designed. By setting a guide port at the intersection of the inlet pipe and the inclined pipe, and setting a stepped surface and a gradually narrowing pipe diameter in the drain pipe, the smooth flow of water and the increase of flow velocity are ensured.

Benefits of technology

It effectively prevents water from flowing smoothly after the inclined pipe becomes blocked, reduces the possibility of blockage, avoids liquid overflow or backflow, and improves the drainage efficiency of the tee joint.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223953581U_ABST
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Abstract

The utility model discloses an anti-overflow pipeline three-way connector. Comprising a tee joint body, the upper end of the tee joint body is a water inlet pipe, the lower end of the tee joint body is a drainage pipe, the lower end of the water inlet pipe is communicated with the upper end of the drainage pipe, and the bottom of the water inlet pipe is an inclined water pipe which gradually inclines upwards from the water inlet pipe from inside to outside; the inner wall, located at the lower end of the inner pipe opening, of the water inlet pipe is sunken to form a flow guide opening, and the bottommost end of the flow guide opening extends into the water drainage pipe. According to the anti-overflow pipeline three-way connector, the problems that when a water inlet pipeline is connected into an existing three-way water inlet, the installation position of the water inlet pipeline in a three-way joint is inaccurate, the pipeline is prone to falling off under the condition that the pipeline is installed in a shallow position, and a 45-degree different-diameter inclined water inlet is prone to being blocked under the condition that the pipeline is installed in a deep position; therefore, the water inlet is blocked, and the liquid overflows or flows back.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of tee joints, in particular to a spill-proof pipeline tee joint. BACKGROUND

[0002] A tee joint is a kind of pipe joint, which can connect three pipes in different directions and is commonly used to change the flow direction of fluid or distribute fluid. The tee joint is divided into equal-diameter tee joints and unequal-diameter tee joints, depending on whether the diameters of the connected pipes are consistent. They are widely used in water pipes, oil pipes, steam pipes and various pipeline systems.

[0003] A 45-degree unequal-diameter inclined tee joint with two unequal-diameter water inlets is also a common type of tee joint. When the existing tee joint water inlet is connected with a water inlet pipeline, the installation position of the water inlet pipeline in the tee joint is not accurate. If the pipeline is installed at a shallow position, it is easy to fall off, and if the pipeline is installed at a deep position, it is easy to block the 45-degree unequal-diameter inclined water inlet, thereby causing the water inlet to be blocked and causing liquid to overflow or backflow.

[0004] Therefore, it is necessary to provide a spill-proof pipeline tee joint to solve the above problems. SUMMARY

[0005] Based on the above problems existing in the prior art, the purpose of the application is to provide a spill-proof pipeline tee joint to solve the problems raised in the background art.

[0006] The technical scheme adopted by the application to solve the technical problems is: a spill-proof pipeline tee joint, comprising a tee body, the upper end of the tee body being a water inlet pipe and the lower end being a drain pipe, the lower end of the water inlet pipe and the upper end of the drain pipe being communicated, the bottom of the water inlet pipe being a slanting water pipe gradually inclined upward from inside to outside of the water inlet pipe, the intersection of the inner wall of the water inlet pipe and the inner wall of the slanting water pipe forming an inner pipe opening, the inner wall of the water inlet pipe being recessed at the lower end of the inner pipe opening to form a flow guide opening, and the bottom end of the flow guide opening extending into the drain pipe.

[0007] Further, the slanting water pipe has a threaded connection end and an inner pipe opening, the threaded connection end being located at the end of the slanting water pipe away from the water inlet pipe, and the inner pipe opening being located at the communication between the bottom wall of the slanting water pipe and the inner wall of the water inlet pipe.

[0008] Further, the flow guide opening has a vertical wall surface and a circular arc wall surface, the circular arc wall surface being located at the bottom of the vertical wall surface and inside the drain pipe, the vertical wall surface extending from the inner wall of the water inlet pipe to the inner wall of the drain pipe, and in the radial direction of the water inlet pipe, the vertical wall surface is located outside the inner pipe opening.

[0009] Further, the inner diameter of the water inlet pipe is greater than the inner diameter of the drain pipe.

[0010] Further, a stepped surface is formed at the connection between the water inlet pipe and the drain pipe.

[0011] Further, the upper surface of the stepped surface gradually inclines downward along the circumferential direction from outside to inside.

[0012] Further, the two end points of the circular arc wall surface are located at the frontmost end of the inner end of the stepped surface.

[0013] Further, the pipe diameter of the drain pipe gradually decreases from top to bottom.

[0014] Further, the included angle between the axis of the water inlet pipe and the axis of the inclined water pipe is 45°.

[0015] The beneficial effects of the present application are: the anti-overflow pipeline tee joint provided by the present application is provided with a flow guide opening, so that the inclined water pipe is communicated with the drain pipe. After the inner pipe opening of the inclined water pipe is blocked by the pipeline in the water inlet pipe, water can still be discharged into the drain pipe, preventing the inclined water pipe from being unable to normally drain after congestion, causing water to overflow at the connection, and also causing the phenomenon of external overflow and reflux;

[0016] The stepped surface inclined downward is provided, so that water flows downward along the inclined surface, improving the smoothness of water flow in the tee joint.

[0017] The drain pipe with a gradually decreasing pipe diameter from top to bottom is provided, so that the flow rate of water in the drain pipe gradually increases, thereby reducing water flow resistance, ensuring smooth water flow, and reducing the possibility of blockage.

[0018] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification of the present application form a part thereof, and serve to provide further understanding of the present application, the illustrative embodiments of the present application and its description serve to explain the present application, and do not constitute improper limitations on the present application.

[0020] In the drawings:

[0021] Figure 1 is the overall schematic view of the present application;

[0022] Figure 2 is the overall top schematic view of the present application;

[0023] Figure 3 is the water inlet pipe cross-sectional schematic view of the present application;

[0024] Figure 4 is the overall cross-sectional schematic view of the present application;

[0025] Figure 5 Figure 1 is a schematic diagram of the water flow direction of the present application;

[0026] Figure 6 Figure 2 is a schematic diagram of the connecting pipeline of the present application;

[0027] In the figure, the various reference signs are:

[0028] 1. Three-way body; 2. Water inlet pipe; 21. Step surface; 3. Drain pipe; 4. Inclined water pipe; 41. Threaded connection end; 42. Inner pipe opening; 5. Flow guide opening; 51. Vertical wall surface; 52. Circular arc wall surface. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0031] As shown in Figures 1-6 The present application provides a technical solution: a spill-proof pipeline three-way joint, which comprises a three-way body 1, the upper end of the three-way body 1 is a water inlet pipe 2, the lower end is a drain pipe 3, the lower end of the water inlet pipe 2 and the upper end of the drain pipe 3 are communicated, the bottom of the water inlet pipe 2 is gradually inclined upward from the inside to the outside of the water inlet pipe 2 by an inclined water pipe 4, the intersection of the inner wall of the water inlet pipe 2 and the inner wall of the inclined water pipe 4 forms an inner pipe opening 42, the inner wall of the water inlet pipe 2 is recessed at the lower end of the inner pipe opening 42 to form a flow guide opening 5, and the bottom end of the flow guide opening 5 extends into the drain pipe 3.

[0032] The inclined water pipe 4 has a threaded connection end 41 and an inner pipe opening 42, the threaded connection end 41 is located at the end of the inclined water pipe 4 away from the water inlet pipe 2, and the inner pipe opening 42 is located at the communication between the bottom wall of the inclined water pipe 4 and the inner wall of the water inlet pipe 2.

[0033] The flow guide opening 5 has a vertical wall surface 51 and a circular arc wall surface 52, the circular arc wall surface 52 is located at the bottom of the vertical wall surface 51 and inside the drain pipe 3, the vertical wall surface 51 extends from the inner wall of the water inlet pipe 2 to the inner wall of the drain pipe 3, and in the radial direction of the water inlet pipe 2, the vertical wall surface 51 is located outside the inner pipe opening 42, so that the space below can be used for fluid to pass through.

[0034] The inner diameter of the water inlet pipe 2 is greater than the inner diameter of the drain pipe 3.

[0035] A stepped surface 21 is formed at the connection between the inlet pipe 2 and the drain pipe 3.

[0036] The upper surface of the stepped surface 21 gradually slopes downward in the circumferential direction from the outside to the inside. This allows water to flow downward along the slope, improving the flow smoothness.

[0037] The two end points of the circular arc wall surface 52 are located at the frontmost edge of the inner end of the stepped surface 21.

[0038] The pipe diameter of the drain pipe 3 gradually decreases from top to bottom. This gradually increases the flow velocity of the water flow in the drain pipe 3, thereby reducing the flow resistance, which helps to improve the drainage efficiency, ensures smooth water flow, and reduces the possibility of blockage.

[0039] The angle between the axis of the inlet pipe 2 and the axis of the inclined water pipe 4 is 45°.

[0040] In one embodiment, the working principle of the tee joint.

[0041] Specifically, the inlet pipe 2, the drain pipe 3, and the inclined water pipe 4 of the tee body 1 are all connected to the corresponding pipes, and the water flow in the inlet pipe 2 and the inclined water pipe 4 converges into the drain pipe 3. When the pipe connected to the inlet pipe 2 enters a deeper position in the tee body 1, it blocks the inner pipe opening 42 of the inclined water pipe 4, preventing the water flow from converging into the inlet pipe 2. At this time, the water flow in the inclined water pipe 4 flows along the vertical wall surface 51 of the flow guide 5, through the circular arc wall surface 52, and finally into the drain pipe 3, preventing backflow caused by the inability of the inclined water pipe 4 to drain water after being blocked.

[0042] In summary, the device is provided with a flow guide 5 to connect the inclined water pipe 4 and the drain pipe 3. After the inner pipe opening 42 of the inclined water pipe 4 is blocked by the pipe in the inlet pipe 2, it can still drain water into the drain pipe 3, preventing the inclined water pipe 4 from being unable to normally drain water after being blocked, causing water to overflow at the connection and also causing reverse flow. This solves the technical problem of the existing tee inlet pipe, where the installation position of the inlet pipe in the tee is not accurate, and the pipe is easily detached when installed in a shallow position, and the 45-degree inclined inlet pipe is easily blocked when installed in a deep position, causing the inlet pipe to be blocked and causing liquid overflow or reverse flow.

[0043] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-overflow plumbing tee, characterized by: The utility model provides a water inlet pipe (2) and the upper end of the drain pipe (3) of three -way body (1) are communicated, the bottom of water inlet pipe (2) is by the slanting water pipe (4) of water inlet pipe (2) from inside to outside gradually upwardly inclined, and the intersection of the inner wall of water inlet pipe (2) and the inner wall of slanting water pipe (4) forms inner nozzle (42), the inner wall of water inlet pipe (2) is recessed to form guide port (5) in the lower end position of inner nozzle (42), and the bottom end of guide port (5) extends to the inside of drain pipe (3).

2. An anti-overflow plumbing tee according to claim 1, characterized in that: The slanting water pipe (4) has a threaded connection end (41) and an inner nozzle (42), the threaded connection end (41) is located at one end of the slanting water pipe (4) away from the water inlet pipe (2), and the inner nozzle (42) is located at the communication between the bottom wall of the slanting water pipe (4) and the inner wall of the water inlet pipe (2).

3. An anti-overflow plumbing tee according to claim 2, wherein: The guide port (5) has a vertical wall (51) and a circular arc wall (52), the circular arc wall (52) is located at the bottom of the vertical wall (51) and in the drain pipe (3), the vertical wall (51) extends from the inner wall of the water inlet pipe (2) to the inner wall of the drain pipe (3), and in the radial direction of the water inlet pipe (2), the vertical wall (51) is located on the outer side of the inner nozzle (42).

4. An anti-overflow plumbing tee according to claim 3, wherein: The inner diameter of the water inlet pipe (2) is greater than the inner diameter of the drain pipe (3).

5. An anti-overflow plumbing tee according to claim 4, wherein: A step surface (21) is formed at the connection between the water inlet pipe (2) and the drain pipe (3).

6. An anti-overflow plumbing tee according to claim 5, wherein: The upper surface of the step surface (21) gradually inclines downward along the circumferential direction from outside to inside.

7. An anti-overflow plumbing tee according to claim 6, wherein: The two end points of the circular arc wall (52) are located at the forefront of the inner end of the step surface (21).

8. An anti-overflow plumbing tee according to claim 1, wherein: The pipe diameter of the drain pipe (3) gradually decreases from top to bottom.

9. An anti-overflow plumbing tee according to claim 1, wherein: The included angle between the axis of the water inlet pipe (2) and the axis of the slanting water pipe (4) is 45°.