Reducing three-way pipeline connecting device

By installing a connecting sleeve and fixing components on the outside of the tee pipe, the problems of difficult adjustment of flange angle and corrosion disassembly in existing tee pipe connection devices are solved, realizing flexible connection and convenient disassembly and maintenance of flanges.

CN223794863UActive Publication Date: 2026-01-13JIANGSU BOYUAN PIPE IND CO LTD
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Patent Information

Application Number
CN202520516432.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-01-13
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

In existing tee pipe connection devices, it is difficult to adjust the flange angle after the secondary pipe is fixed to the tee pipe thread, and it is prone to corrosion after long-term use, making disassembly and maintenance difficult.

Method used

The design incorporates connecting and fixing components, including a connecting sleeve, a circular slider, a flange, and a clamp. The connecting sleeve is positioned outside the tee pipe, and sealing performance is improved through sealing rings and gaskets. The flange angle is secured using fixing bolts and nuts to prevent corrosion from affecting disassembly.

Benefits of technology

It enables flexible adjustment of the flange angle and convenient connection, avoids disassembly difficulties caused by rust, and improves the ease of use and maintenance efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223794863U_ABST
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Abstract

The utility model discloses a reducing three-way pipeline connecting device, which relates to the technical field of three-way joints, and comprises a three-way pipe body and a connecting pipe, a connecting assembly is arranged outside the connecting pipe, and the connecting assembly comprises a connecting sleeve, a circular sliding block, a flange plate and a hoop. According to the utility model, through the matched arrangement of the connecting assembly and the fixing assembly, after the three-way pipe body is connected, when the angle of the flange plate needs to be adjusted according to the field requirement, the flange plate can be freely rotated firstly, so that the flange hole of the flange plate is aligned with a butt-joint pipeline, and then the fixing nut is rotated; the hoop is firmly locked on the surface of the connecting pipe through the fixing bolt, namely, the flange plates are limited and fixed, so that butt joint of the flange plates is facilitated; and meanwhile, the connecting sleeve is arranged outside the three-way pipe body, so that the problem that the three-way pipe body and the connecting pipe are difficult to disassemble and overhaul due to corrosion is solved, and convenience is brought to subsequent disassembly and overhaul of the three-way pipe body.
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Description

Technical Field

[0001] This utility model relates to the field of tee fitting technology, and in particular to a reducing tee pipe connection device. Background Technology

[0002] A tee is a pipe fitting with three connection points: one inlet and two outlets, or two inlets and one outlet. It comes in T-shape and Y-shape, and with equal-diameter inlets and different-diameter inlets. It is used where three identical or different pipelines converge. The main function of a tee is to change the direction of fluid flow.

[0003] The patent titled "A Three-Way Pipe Connection Structure" (patent application number: 202321480921.3) discloses a three-way pipe connection structure, including a three-way pipe, a secondary pipe, and a valve assembly. The secondary pipe is screwed to the opening of the three-way pipe, and a flange is provided at the end of each secondary pipe. The valve assembly includes a valve, a valve shaft, a square block, and a rotating block. The valve abuts against the inner wall of the three-way pipe, and the valve shaft is rotatably connected to both the three-way pipe and the square block. The square block is located on the outer wall of the three-way pipe and has a cross groove. The rotating block is located within the cross groove. This allows for adjustment of the flange angle of the three-way pipe via the secondary pipe, improving ease of use and enabling rapid adjustment. The valve assembly allows for quick conversion between three-way, right-angle two-way, and straight pipe applications, further improving usability. Simultaneously, it enables rapid closure of the channel during maintenance of a single connection port, preventing interference with other channels and improving maintenance efficiency.

[0004] In the above case, although the flange angle of the tee can be adjusted via a secondary pipe, once the secondary pipe is threadedly connected to the tee, it becomes difficult to adjust the flange angle, affecting subsequent flange connections. Furthermore, since the secondary pipe is located inside the tee, it is prone to corrosion over time, making disassembly and maintenance difficult and complicating the use of the device. Therefore, it is necessary to propose a reducing tee pipe connection device to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a reducing tee pipe connection device to solve the problems mentioned in the background art. Although the flange angle of the tee pipe can be adjusted through the auxiliary pipe, it is difficult to adjust the flange angle after the auxiliary pipe is threadedly fixed to the tee pipe, which will affect the subsequent connection of the flange. At the same time, the auxiliary pipe is located inside the tee pipe, and after long-term use, the auxiliary pipe will be corroded, making it difficult to disassemble and repair the auxiliary pipe, which brings inconvenience to the use of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reducing tee pipe connection device, comprising a tee pipe body and a connecting pipe, wherein a connecting assembly is provided on the outside of the connecting pipe, the connecting assembly comprising a connecting sleeve, a circular slider, a flange and a clamp, wherein the inside of the connecting sleeve is fixedly connected to the outside of the connecting pipe, and the outside of the connecting sleeve is fixedly connected to the inside of the circular slider, the outside of the circular slider is rotatably connected to the inside of the flange, and the side of the flange is fixedly connected to the side of the clamp;

[0007] The clamp has a fixing component inside, which includes a fixing bolt and a fixing nut. The outside of the fixing bolt is inserted into the inside of the clamp, and the outside of the fixing bolt is threadedly connected to the inside of the fixing nut.

[0008] Preferably, the outside of the connecting pipe is inserted into the inside of the tee pipe body, and a sealing ring is fixedly connected to the outside of the connecting pipe.

[0009] Preferably, the inside of the connecting sleeve is threaded to the outside of the tee pipe body, and a sealing gasket is fixedly connected to the inner wall of the connecting sleeve.

[0010] Preferably, the diameter of the connecting pipe is smaller than the diameter of the tee pipe body.

[0011] Preferably, the inside of the clamp is rotatably connected to the outside of the connecting pipe, and the inside of the flange has multiple flange holes.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By using a combination of connecting and fixing components, after the tee pipe body is connected, if the flange angle needs to be adjusted according to site requirements, the flange can be rotated freely to align the flange hole with the connecting pipe. Then, the fixing nut is rotated to firmly lock the clamp onto the surface of the connecting pipe with the fixing bolts, thus limiting and fixing the flange and facilitating flange connection. At the same time, since the connecting sleeve is located on the outside of the tee pipe body, it will not be affected by corrosion, which would make it difficult to disassemble and maintain the tee pipe body and the connecting pipe. This facilitates the subsequent disassembly and maintenance of the tee pipe body. Attached Figure Description

[0014] Figure 1 This is a front view of the reducing tee pipe connection device of this utility model.

[0015] Figure 2 This is a top view schematic diagram of the reducing tee pipe connection device of this utility model.

[0016] Figure 3 This is a cross-sectional view of the reducing tee pipe connection device of this utility model.

[0017] In the diagram: 1. Tee body; 2. Connecting pipe; 3. Connecting sleeve; 4. Sealing ring; 5. Sealing gasket; 6. Circular slider; 7. Flange; 8. Clamp; 9. Fixing bolt; 10. Fixing nut. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides, for example Figures 1-3 The diagram shows a reducing tee pipe connection device, including a tee pipe body 1 and a connecting pipe 2. A connecting assembly is provided on the outside of the connecting pipe 2. The connecting assembly includes a connecting sleeve 3, a circular slider 6, a flange 7, and a clamp 8. The inside of the connecting sleeve 3 is fixedly connected to the outside of the connecting pipe 2, and the outside of the connecting sleeve 3 is fixedly connected to the inside of the circular slider 6. The outside of the circular slider 6 is rotatably connected to the inside of the flange 7. The side of the flange 7 is fixedly connected to the side of the clamp 8. The outside of the connecting pipe 2 is inserted into the inside of the tee pipe body 1, and a sealing ring 4 is fixedly connected to the outside of the connecting pipe 2. The inside of the connecting sleeve 3 is threadedly connected to the outside of the tee pipe body 1, and a sealing gasket 5 is fixedly connected to the inner wall of the connecting sleeve 3. The diameter of the connecting pipe 2 is smaller than the diameter of the tee pipe body 1. When connecting the T-shaped pipe body 1 and the connecting pipe 2, the connecting pipe 2 can be inserted into the interior of the T-shaped pipe body 1 first, and then the connecting sleeve 3 can be rotated so that the interior of the connecting sleeve 3 is connected to the external thread of the T-shaped pipe body 1. Then, by using the cooperation of the sealing ring 4 and the sealing gasket 5, the sealing performance of the T-shaped pipe body 1 can be improved. Since the connecting sleeve 3 is located on the outside of the T-shaped pipe body 1, it will not be affected by rust and will not be difficult to disassemble and repair the T-shaped pipe body 1 and the connecting pipe 2, thus bringing convenience to the subsequent disassembly and repair of the T-shaped pipe body 1.

[0020] In addition, the clamp 8 has a fixing component inside, which includes a fixing bolt 9 and a fixing nut 10. The outside of the fixing bolt 9 is inserted into the inside of the clamp 8, and the outside of the fixing bolt 9 is threaded into the inside of the fixing nut 10. The inside of the clamp 8 is rotatably connected to the outside of the connecting pipe 2. The flange 7 has multiple flange holes inside. When the tee pipe body 1 is connected, if the angle of the flange 7 needs to be adjusted according to the needs of the site, the flange 7 can be rotated freely first to align the flange holes of the flange 7 with the connecting pipe. Then, the fixing nut 10 is rotated so that the fixing bolt 9 firmly locks the clamp 8 onto the surface of the connecting pipe 2, that is, limits and fixes the flange 7, thereby facilitating the connection of the flange 7.

[0021] Working principle: When connecting the tee pipe body 1 and the connecting pipe 2, the connecting pipe 2 can be inserted into the tee pipe body 1 first. Then, the connecting sleeve 3 is rotated so that the inside of the connecting sleeve 3 is connected to the external thread of the tee pipe body 1. Then, the sealing performance of the tee pipe body 1 can be improved by the cooperation of the sealing ring 4 and the sealing gasket 5. Since the connecting sleeve 3 is set on the outside of the tee pipe body 1, it will not be difficult to disassemble and repair the tee pipe body 1 and the connecting pipe 2 due to corrosion, thus bringing convenience to the subsequent disassembly and repair of the tee pipe body 1. After the tee pipe body 1 is connected, if the angle of the flange 7 needs to be adjusted according to the needs of the site, the flange 7 can be rotated freely so that the flange hole of the flange 7 is aligned with the docking pipe. Then, the fixing nut 10 is rotated so that the fixing bolt 9 firmly locks the clamp 8 on the surface of the connecting pipe 2, that is, the flange 7 is limited and fixed, thus facilitating the docking of the flange 7.

Claims

1. A reducing tee pipe connection device comprising a tee pipe body (1) and a connecting pipe (2), characterized in that: The outer part of the connecting pipe (2) is provided with a connecting assembly, which comprises a connecting sleeve (3), a circular slider (6), a flange plate (7) and a clamp (8), the inner part of the connecting sleeve (3) is fixedly connected with the outer part of the connecting pipe (2), and the outer part of the connecting sleeve (3) is fixedly connected with the inner part of the circular slider (6), the outer part of the circular slider (6) is rotatably connected with the inner part of the flange plate (7), and the side surface of the flange plate (7) is fixedly connected with the side surface of the clamp (8); The inner part of the clamp (8) is provided with a fixing assembly, which comprises a fixing bolt (9) and a fixing nut (10), the outer part of the fixing bolt (9) is inserted into the inner part of the clamp (8), and the outer part of the fixing bolt (9) is screwedly connected with the inner part of the fixing nut (10).

2. A reducing tee pipe connection device according to claim 1, characterized in that: The outer part of the connecting pipe (2) is inserted into the inner part of the three-way pipe body (1), and the outer part of the connecting pipe (2) is fixedly connected with a sealing ring (4).

3. A reducing tee pipe connection device according to claim 1, characterized in that: The inner part of the connecting sleeve (3) is screwedly connected with the outer part of the three-way pipe body (1), and the inner wall of the connecting sleeve (3) is fixedly connected with a sealing gasket (5).

4. A reducing tee pipe connection device according to claim 1, characterized in that: The diameter value of the connecting pipe (2) is smaller than the diameter value of the three-way pipe body (1).

5. A reducing tee pipe connection device according to claim 1, characterized in that: The inner part of the clamp (8) is rotatably connected with the outer part of the connecting pipe (2), and the inner part of the flange plate (7) is provided with a plurality of flange holes.

Citation Information

Patent Citations

  • Three-way pipeline connecting structure

    CN220016170U