Corrugated mitered tee joint
By designing a corrugated oblique tee connector, which is integrally molded using injection molding and features staggered crests and troughs, the problems of complex connection and poor pressure resistance of traditional tee connectors are solved, achieving efficient and low-cost connection of seepage and drainage pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU WEI SHUAI PLASTIC CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-14
AI Technical Summary
The existing connection methods between seepage and drainage pipes and tee joints are complicated, and traditional tee joints have poor pressure resistance and pressure resistance, resulting in high manufacturing costs and low work efficiency.
A corrugated oblique tee connector is designed and integrally molded by injection molding. The interface ends of the main pipe and branch pipe are provided with protrusions and a plug-in connection method is adopted. The peaks and troughs of the main pipe and branch pipe are staggered at the joint to enhance the connection strength.
The pressure resistance and pressure resistance of the tee connector have been improved, production costs have been reduced, and on-site installation has been simplified and work efficiency has been improved through the plug-in connection method.
Smart Images

Figure CN224497902U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tee connector technology, and in particular to a corrugated oblique tee connector. Background Technology
[0002] Tees, also known as pipe tees, are pipe fittings, or tee connectors. They are mainly used to change the direction of fluid flow and are placed where a branch pipe needs to be installed on a main pipeline. They are generally made of materials such as carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon-bonded asphalt, and PVC.
[0003] In municipal engineering projects, water purification plants, sewage treatment plants, landfills, golf courses, sports fields, parks, and other places, PVC drainage pipes are needed to complete the seepage and drainage work, thereby preventing foundation settlement. When connecting drainage pipes, oblique tee joints are required.
[0004] In the existing technology, seepage and drainage pipes and tee joints are generally smooth-walled pipes with thick walls, which not only have high manufacturing costs but also poor pressure resistance and pressure resistance. In addition, traditional tee joints and seepage and drainage pipes are mostly bonded with glue or hot-melt welding, which is more troublesome and reduces work efficiency. Utility Model Content
[0005] The purpose of this utility model is to provide a corrugated oblique tee connector, which has strong pressure resistance and good pressure resistance, and the overall pipe wall is relatively thin, saving production raw materials and reducing manufacturing costs. In addition, the corrugated seepage and drainage pipe can be connected to the tee connector by plugging, which ensures more convenient on-site installation and improves work efficiency, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A corrugated oblique tee connector includes a main pipe and a branch pipe connected to one side of the main pipe; the middle part of the main pipe and the connection end between the branch pipe and the main pipe are corrugated, the interface end between the main pipe and the branch pipe is smooth, and the inner wall of the interface end between the main pipe and the branch pipe is provided with several protrusions.
[0008] A further improvement of this utility model is that the main pipe, branch pipe, and protrusion are integrally formed by injection molding.
[0009] A further improvement of this utility model is that the protrusion has an overall elongated structure and the cross-section of the protrusion is arc-shaped.
[0010] A further improvement of this utility model is that the protrusions are arranged in a ring array on the inner wall of the interface end between the main pipe and the branch pipe.
[0011] A further improvement of this utility model is that the crests and troughs at the junction of the main pipe and the branch pipe are arranged alternately.
[0012] A further improvement of this invention is that the cross-sections of both the crests and troughs are arc-shaped.
[0013] A further improvement of this utility model is that the proportion of the corrugated portion on the main pipe and branch pipes is greater than the proportion of the light pipe portion.
[0014] A further improvement of this utility model is that the wall thickness of the main pipe and branch pipe is 1.0 to 3.0 mm, preferably 1.5 mm.
[0015] The beneficial effects of this utility model are:
[0016] The present invention relates to a corrugated oblique tee connector, which has strong pressure resistance and good pressure resistance, and a relatively thin overall pipe wall, thus saving raw materials and reducing manufacturing costs.
[0017] The corrugated oblique tee connector of this utility model allows corrugated seepage and drainage pipes to be connected to the tee connector via a plug-in connection, ensuring more convenient on-site installation and improving work efficiency.
[0018] A further improvement of this utility model is that the protrusion is in the form of a long strip structure, and the protrusion is arranged in a ring array on the inner wall of the interface end of the main pipe and the branch pipe to ensure the connection strength between the seepage and drainage pipe and the tee joint.
[0019] The corrugated oblique tee connector of this utility model has a circular arc cross section at both the crest and trough, which further improves the pressure resistance and pressure resistance of the tee connector.
[0020] The corrugated oblique tee of this invention has a larger proportion of corrugated part on the main pipe and branch pipe than on the plain part, which ensures the overall compressive strength of the tee.
[0021] The corrugated oblique tee of this invention features an alternating arrangement of crests and troughs at the junction of the main pipe and branch pipe, ensuring the strength of the connection between the main pipe and branch pipe and extending the service life of the tee. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0023] Figure 2 for Figure 1 Sectional view along the AA direction.
[0024] Figure 3 This is a schematic diagram showing the usage state of this utility model.
[0025] In the diagram: 1-Main pipe, 2-Branch pipe, 3-Protrusion, 4-Crest, 5-Valley, 6-Corrugated drainage pipe. Detailed Implementation
[0026] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.
[0027] Example 1: As Figures 1-2 As shown, a corrugated oblique tee connector includes a main pipe 1, with a branch pipe 2 connected to one side of the main pipe 1; the middle part of the main pipe 1 and the connection end of the branch pipe 2 with the main pipe 1 are corrugated, the interface end of the main pipe 1 and the branch pipe 2 is in the shape of a smooth tube, and the inner wall of the interface end of the main pipe 1 and the branch pipe 2 is provided with several protrusions 3.
[0028] The main pipe 1, branch pipe 2, and protrusion 3 are integrally formed by injection molding.
[0029] The bump 3 has an overall elongated structure, and the cross-section of the bump 3 is arc-shaped.
[0030] The protrusions 3 are arranged in a ring array on the inner wall of the interface between the main pipe 1 and the branch pipe 2.
[0031] The peaks 4 and troughs 5 at the junction of the main pipe 1 and the branch pipe 2 are arranged alternately.
[0032] Both the crest 4 and the trough 5 have arc-shaped cross sections.
[0033] The proportion of the corrugated part on the main pipe 1 and the branch pipe 2 is greater than the proportion of the light pipe part.
[0034] The wall thickness of main pipe 1 and branch pipe 2 is 1.5mm.
[0035] Example 2: This example is a further improvement on Example 1. The main improvement is that in Example 1, the connection between the main pipe 1 and the branch pipe 2 has poor strength and is easily damaged during operation; while in this example, the above-mentioned defects can be avoided. Specifically:
[0036] The crests 4 and troughs 5 at the junction of the main pipe 1 and the branch pipe 2 are arranged alternately. In this embodiment, the crests 4 and troughs 5 at the junction of the main pipe 1 and the branch pipe 2 are arranged alternately to ensure the strength of the connection between the main pipe 1 and the branch pipe 2 and to extend the service life of the tee joint.
[0037] Apart from the above, this embodiment is exactly the same as Embodiment 1, and will not be described again here.
[0038] The specific working principle of this utility model is as follows:
[0039] This tee joint is used for diverting corrugated seepage and drainage pipes. In this embodiment, corrugated drainage pipe 6 is shown.
[0040] like Figure 3As shown, each of the three interfaces of the tee joint has four elongated protrusions 3 evenly distributed at 360°. These protrusions 3 are designed so that, after the corrugated drain pipe 6 is inserted, they can fit precisely into the troughs 5 of the corrugated drain pipe 6. Thus, when the corrugated drain pipe 6 attempts to detach from the tee joint, the protrusions 3 generate a reaction force, preventing the pipe from separating and effectively connecting the pipes together and between the pipe and the tee joint. Furthermore, the corrugated shape of the middle section of the main pipe 1 and the connection point between the branch pipe 2 and the main pipe 1 primarily enhances pressure resistance, increasing the strength of the tee joint.
[0041] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A corrugated oblique tee connector, characterized in that: It includes a main pipe (1), and a branch pipe (2) is connected to one side of the main pipe (1); the middle part of the main pipe (1) and the connection end of the branch pipe (2) with the main pipe (1) are corrugated, the interface end of the main pipe (1) and the branch pipe (2) is in the shape of a smooth tube, and the inner wall of the interface end of the main pipe (1) and the branch pipe (2) is provided with several protrusions (3).
2. The corrugated oblique tee connector as described in claim 1, characterized in that: The main pipe (1), branch pipe (2) and protrusion (3) are integrally formed by injection molding.
3. The corrugated oblique tee connector as described in claim 1, characterized in that: The protrusion (3) has an overall elongated structure, and the cross-section of the protrusion (3) is arc-shaped.
4. The corrugated oblique tee connector as described in claim 1, characterized in that: The protrusions (3) are arranged in a ring array on the inner wall of the interface end between the main pipe (1) and the branch pipe (2).
5. The corrugated oblique tee connector as described in claim 1, characterized in that: The peaks (4) and troughs (5) at the junction of the main pipe (1) and the branch pipe (2) are arranged alternately.
6. The corrugated oblique tee connector as described in claim 5, characterized in that: The cross sections of the crests (4) and troughs (5) are both arc-shaped.
7. The corrugated oblique tee connector as described in claim 1, characterized in that: The corrugated portion of the main pipe (1) and branch pipe (2) is greater than the proportion of the light pipe portion.
8. The corrugated oblique tee connector as described in claim 1, characterized in that: The wall thickness of the main pipe (1) and branch pipe (2) is 1.0 to 3.0 mm.