A multi-port connection stable stainless steel pipe connector

By combining a straight baffle, an L-shaped fixing rod, and a vertical baffle, along with a rubber arc plate and external thread design, the stability problem of stainless steel pipe connectors is solved, achieving a stable connection for stainless steel pipes without external threads and preventing loosening and detachment.

CN224396859UActive Publication Date: 2026-06-23YUNNAN JIANZHIHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN JIANZHIHENG TECH CO LTD
Filing Date
2025-08-12
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing stainless steel pipe fittings often only connect threaded steel pipes, and the connection is not stable.

Method used

The system employs a combination of a straight baffle, an L-shaped fixing rod, and a vertical baffle. Combined with the design of a rubber arc plate and external threads, it secures stainless steel pipes without external threads and prevents rotation and loosening through the engagement of the rubber arc plate and the external threads.

Benefits of technology

It achieves a secure connection to stainless steel pipes without external threads, preventing loosening and detachment, and enhancing the stability of the connection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224396859U_ABST
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Abstract

The utility model discloses a kind of multi-port connection stable stainless steel pipe connecting pieces, including three-way pipe fittings, the three outer end positions of three-way pipe fittings are fixedly installed with one stop board, the outside of one stop board is movably installed with upper semicircular plate, the bottom end of upper semicircular plate is movably installed with lower semicircular plate, the outer surface of upper semicircular plate and lower semicircular plate is fixedly installed with L type fixed rod.The utility model inserts stainless steel pipe into the inside of three-way pipe fittings, subsequently installs upper semicircular plate and lower semicircular plate on the upper and lower sides of stainless steel pipe respectively, makes upper semicircular plate and lower semicircular plate adhere and is fixed to stainless steel pipe by the friction of upper semicircular plate and lower semicircular plate, one stop board is inserted into the limiting groove between L type fixed rod and upper semicircular plate and lower semicircular plate inside at this time, so that upper semicircular plate and lower semicircular plate are blocked to L type fixed rod and vertical baffle by one stop board, so that stainless steel pipe without external thread cannot be directly pulled out.
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Description

Technical Field

[0001] This utility model relates to the technical field of stainless steel pipe connectors, specifically a stainless steel pipe connector with stable multi-port connection. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components. In addition, it is lighter in weight while maintaining the same bending and torsional strength, so it is widely used in the manufacture of mechanical parts and engineering structures, and is also commonly used in furniture and kitchenware.

[0003] Existing stainless steel pipe fittings often only connect to threaded steel pipes, and the connection is not secure. Therefore, they do not meet current requirements. To address this, we propose a multi-port stainless steel pipe fitting that provides a more secure connection. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-port stable stainless steel pipe connector to solve the problems mentioned in the background art, such as the fact that stainless steel pipe connectors can only be used to connect threaded steel pipes and the connection of steel pipes is not stable.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-port stable stainless steel pipe connector, including a tee fitting. A straight baffle is fixedly installed at each of the three outer ends of the tee fitting. An upper semicircular plate is movably installed on the outer side of each straight baffle. A lower semicircular plate is movably installed at the bottom end of each upper semicircular plate. An L-shaped fixing rod is fixedly installed on the outer surface of both the upper and lower semicircular plates. A limiting groove is provided between the L-shaped fixing rod and the upper and lower semicircular plates. A vertical baffle is fixedly installed on the surface of each L-shaped fixing rod. Each straight baffle is movably inserted into the limiting groove. A stainless steel pipe is movably installed inside one of the outer ends of the tee fitting. The stainless steel pipe passes through the interior of the upper and lower semicircular plates and is inserted into the interior of the tee fitting.

[0006] Preferably, a fixed ring is fixedly installed on the outer surface of each of the three outer ends of the tee fitting, and a movable ring is movably installed on the outer surface of each of the three outer ends of the tee fitting. A compression spring is provided between the fixed ring and the movable ring. One end of the compression spring is connected to the fixed ring, and the other end of the compression spring is connected to the movable ring. The movable ring is in contact with the surface of the L-shaped fixing rod and the vertical baffle.

[0007] Preferably, the outer surface of the stainless steel pipe is provided with external threads, and the inner sides of the three outer ends of the tee fitting are all provided with internal threads. The stainless steel pipes are all connected by the meshing of external and internal threads.

[0008] Preferably, the inner surfaces of the upper and lower semicircular plates are provided with rubber arc plates, and the rubber arc plates are deformed and engaged with the inner side of the external thread at the contact position with the external thread.

[0009] Preferably, both sides of the upper and lower semicircular plates are provided with two mounting holes, and the upper and lower semicircular plates are connected by bolts passing through the mounting holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model, through the cooperation of a straight baffle, an L-shaped fixing rod, and a vertical baffle, allows the device to first insert the stainless steel pipe without external threads into the tee fitting when installing it. Then, an upper semicircular plate and a lower semicircular plate are installed on the upper and lower sides of the stainless steel pipe, respectively. The upper and lower semicircular plates are brought into contact and fixed by the friction between them. At this time, the L-shaped fixing rod on the surface of the upper and lower semicircular plates passes through the position of the straight baffle, causing the straight baffle to be inserted into the limiting groove between the L-shaped fixing rod and the upper and lower semicircular plates. At the same time, the surface of the vertical baffle impacts the surface of the straight baffle, so that the upper and lower semicircular plates can only be removed upwards and the lower semicircular plate can only be removed downwards through the obstruction of the L-shaped fixing rod and the vertical baffle by the straight baffle. This prevents the stainless steel pipe without external threads from being pulled out directly.

[0012] 2. This utility model utilizes the cooperation of a rubber arc plate and an external thread. When a stainless steel pipe with an external thread is inserted into the interior of the internal thread and connected to the tee fitting, the rubber arc plate will be engaged with the surface of the external thread when the upper and lower semicircular plates are installed on the surface of the stainless steel pipe. This causes the rubber arc plate to deform and engage with the inner side of the external thread, thus fixing the stainless steel pipe. In conjunction with the straight baffle, the L-shaped fixing rod and the vertical baffle are fixed, preventing the stainless steel pipe from rotating. This avoids the stainless steel pipe from loosening or shaking and slightly rotating inside the tee fitting, which could cause the stainless steel pipe to fall off. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is an exploded structural diagram of the entire utility model;

[0015] Figure 3 This is a top cross-sectional view of the entire utility model;

[0016] Figure 4 This is a cross-sectional side view of the entire utility model.

[0017] In the diagram: 1. Tee fitting; 2. Fixed ring; 3. Compression spring; 4. Moving ring; 5. Stainless steel pipe; 6. External thread; 7. Upper semicircular plate; 8. Lower semicircular plate; 9. Internal thread; 10. Straight baffle; 11. Assembly hole; 12. L-shaped fixing rod; 13. Vertical baffle; 14. Rubber arc plate. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 4 This utility model provides an embodiment of a multi-port stable stainless steel pipe connector, including a tee fitting 1. A straight baffle 10 is fixedly installed at each of the three outer ends of the tee fitting 1. An upper semicircular plate 7 is movably installed on the outer side of each straight baffle 10. A lower semicircular plate 8 is movably installed at the bottom end of each upper semicircular plate 7. L-shaped fixing rods 12 are fixedly installed on the outer surfaces of both the upper and lower semicircular plates 7 and 8. A limiting groove is provided between the L-shaped fixing rods 12 and the upper and lower semicircular plates 7 and 8. Vertical baffles 13 are fixedly installed on the surface of each L-shaped fixing rod 12. The straight baffles 10 are movably inserted into the limiting grooves. A stainless steel pipe 5 is movably installed inside one of the outer ends of the tee fitting 1. The stainless steel pipe 5 passes through the interiors of the upper and lower semicircular plates 7 and is inserted into the interior of the tee fitting 1.

[0020] Through the cooperation of the straight baffle 10, the L-shaped fixing rod 12, and the vertical baffle 13, when installing a stainless steel pipe 5 without external threads 6, the stainless steel pipe 5 can be first inserted into the tee fitting 1. Then, the upper semicircular plate 7 and the lower semicircular plate 8 are installed on the upper and lower sides of the stainless steel pipe 5 respectively. The upper semicircular plate 7 and the lower semicircular plate 8 are brought into contact and fixed to the stainless steel pipe 5 by the friction of the upper semicircular plate 7 and the lower semicircular plate 8. At this time, the L-shaped fixing rod 12 on the surface of the upper semicircular plate 7 and the lower semicircular plate 8 will be released from one side. The position of the baffle 10 is such that it is inserted into the limiting groove between the L-shaped fixing rod 12 and the upper and lower semicircular plates 7 and 8. At the same time, the surface of the vertical baffle 13 will hit the surface of the baffle 10, so that the upper and lower semicircular plates 7 and 8 can only be taken out upwards and the lower semicircular plates 8 can only be taken out downwards by the baffle 10 blocking the L-shaped fixing rod 12 and the vertical baffle 13. This prevents the stainless steel tube 5 without external threads 6 from being pulled out directly.

[0021] A fixed ring 2 is fixedly installed on the outer surface of each of the three outer ends of the tee fitting 1. A movable ring 4 is movably installed on the outer surface of each of the three outer ends of the tee fitting 1. A compression spring 3 is provided between the fixed ring 2 and the movable ring 4. One end of the compression spring 3 is connected to the fixed ring 2, and the other end of the compression spring 3 is connected to the movable ring 4. The movable ring 4 is in contact with the surface of the L-shaped fixed rod 12 and the vertical baffle 13.

[0022] The outer surface of the stainless steel pipe 5 is provided with external threads 6, and the inner sides of the three outer ends of the tee fitting 1 are provided with internal threads 9. The stainless steel pipe 5 is connected by the meshing threads of external threads 6 and internal threads 9.

[0023] Both the upper semicircular plate 7 and the lower semicircular plate 8 have rubber arc plates 14 on their inner surfaces. The rubber arc plates 14 deform and get stuck into the inner side of the external thread 6 at the contact position with the external thread 6.

[0024] With the cooperation of the rubber arc plate 14 and the external thread 6, when the stainless steel pipe 5 with the external thread 6 is inserted into the interior of the internal thread 9 and threadedly connected to the tee fitting 1, the rubber arc plate 14 will be stuck into the surface of the external thread 6 when the upper semicircular plate 7 and the lower semicircular plate 8 are installed on the surface of the stainless steel pipe 5. This causes the rubber arc plate 14 to deform and be stuck into the inside of the external thread 6. At this time, the stainless steel pipe 5 can be fixed by the rubber arc plate 14, and with the help of the straight baffle 10 to fix the L-shaped fixing rod 12 and the vertical baffle 13, the stainless steel pipe 5 cannot rotate. This prevents the stainless steel pipe 5 from loosening or shaking and slightly rotating inside the tee fitting 1, which could cause the stainless steel pipe 5 to fall off.

[0025] The upper semicircular plate 7 and the lower semicircular plate 8 are provided with two mounting holes 11 on both sides. The upper semicircular plate 7 and the lower semicircular plate 8 are connected by bolts passing through the mounting holes 11.

[0026] When using this multi-port, stable stainless steel pipe connector, when installing a stainless steel pipe 5 without external threads 6, the stainless steel pipe 5 can be first inserted into the tee fitting 1. Then, an upper semi-circular plate 7 and a lower semi-circular plate 8 are installed on the upper and lower sides of the stainless steel pipe 5 respectively, so that the upper and lower semi-circular plates 7 and 8 are in contact and the stainless steel pipe 5 is fixed by the friction of the upper and lower semi-circular plates 7 and 8. At this time, the L-shaped fixing rods 12 on the surface of the upper and lower semi-circular plates 7 and 8 will be released from the straight baffle 1. The position 0 passes through, causing the straight baffle 10 to be inserted into the limiting groove between the L-shaped fixing rod 12 and the upper semicircular plate 7 and the lower semicircular plate 8. At the same time, the surface of the vertical baffle 13 will hit the surface of the straight baffle 10, so that the upper semicircular plate 7 and the lower semicircular plate 8 can only be taken out upwards and the lower semicircular plate 8 can only be taken out downwards by the obstruction of the L-shaped fixing rod 12 and the vertical baffle 13 by the straight baffle 10. This prevents the stainless steel tube 5 without external threads 6 from being pulled out directly.

[0027] When installing a stainless steel pipe 5 with external threads 6, after the stainless steel pipe 5 with external threads 6 is inserted into the interior of the internal threads 9 and threadedly connected to the tee fitting 1, when the upper semicircular plate 7 and the lower semicircular plate 8 are installed on the surface of the stainless steel pipe 5, the rubber arc plate 14 will be stuck into the surface of the external threads 6, thereby deforming the rubber arc plate 14 and locking it into the inside of the external threads 6. At this time, the stainless steel pipe 5 can be fixed by the rubber arc plate 14, and with the help of the straight baffle 10 to fix the L-shaped fixing rod 12 and the vertical baffle 13, the stainless steel pipe 5 cannot rotate, thus preventing the stainless steel pipe 5 from loosening or shaking and slightly rotating inside the tee fitting 1, which could cause the stainless steel pipe 5 to fall off.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-port, securely connected stainless steel pipe connector, comprising a tee fitting (1), characterized in that: The three outer ends of the tee fitting (1) are all fixedly equipped with a straight baffle (10). An upper semicircular plate (7) is movably installed on the outer side of the straight baffle (10). A lower semicircular plate (8) is movably installed on the bottom end of the upper semicircular plate (7). An L-shaped fixing rod (12) is fixedly installed on the outer surface of the upper semicircular plate (7) and the lower semicircular plate (8). A limiting groove is provided between the L-shaped fixing rod (12) and the upper semicircular plate (7) and the lower semicircular plate (8). A vertical baffle (13) is fixedly installed on the surface of the L-shaped fixing rod (12). The straight baffle (10) is movably inserted into the inside of the limiting groove. A stainless steel pipe (5) is movably installed inside one of the outer ends of the tee fitting (1). The stainless steel pipe (5) passes through the inside of the upper semicircular plate (7) and the lower semicircular plate (8) and is inserted into the inside of the tee fitting (1).

2. The stainless steel pipe connector with stable multi-port connection according to claim 1, characterized in that: The outer surfaces of the three outer ends of the tee fitting (1) are all fixedly installed with fixed rings (2), and the outer surfaces of the three outer ends of the tee fitting (1) are all movably installed with movable rings (4). A compression spring (3) is provided between the fixed ring (2) and the movable ring (4). One end of the compression spring (3) is connected to the fixed ring (2), and the other end of the compression spring (3) is connected to the movable ring (4). The movable ring (4) is in contact with the surfaces of the L-shaped fixed rod (12) and the vertical baffle (13).

3. The stainless steel pipe connector with stable multi-port connection according to claim 1, characterized in that: The outer surface of the stainless steel pipe (5) is provided with external threads (6), and the inner sides of the three outer ends of the tee fitting (1) are provided with internal threads (9). The stainless steel pipe (5) is connected by the meshing threads of the external threads (6) and the internal threads (9).

4. The stainless steel pipe connector with stable multi-port connection according to claim 1, characterized in that: The inner surfaces of the upper semicircular plate (7) and the lower semicircular plate (8) are provided with rubber arc plates (14), and the rubber arc plates (14) are deformed and inserted into the inner side of the external thread (6) at the contact position with the external thread (6).

5. A multi-port stable stainless steel pipe connector according to claim 1, characterized in that: The upper semicircular plate (7) and the lower semicircular plate (8) are provided with two mounting holes (11) on both sides of the upper semicircular plate (7) and the lower semicircular plate (8) are connected by bolts passing through the mounting holes (11).