Shock-resistant pipe fitting

By incorporating a rotating mechanism and a rubber buffer structure within the stainless steel pipe, the problems of low strength and lack of buffering devices in traditional irregularly shaped pipe fittings are solved, effectively weakening and protecting the water flow and extending its service life.

CN224174794UActive Publication Date: 2026-04-28SHANDONG YIBAITONG PIPELINE SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG YIBAITONG PIPELINE SYST CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional irregular-shaped pipe fittings are prone to local dents during use due to their inability to withstand pressure. They also have low strength and lack water flow buffer devices, resulting in a short service life.

Method used

Design an impact-resistant pipe fitting with a rotating mechanism inside the inner stainless steel pipe, including a fixed block, pipe body, rotating column and baffle. Rubber strips and rubber blocks are used for buffering and turbulence, and the rotational resistance is increased to protect the inner stainless steel pipe.

Benefits of technology

The combination of rubber strips and blocks in the rotating mechanism enhances the buffering and weakening effect on the water flow, extends the service life of the inner stainless steel pipe, and improves the practicality of the device.

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Abstract

The utility model discloses an anti-impact pipe fitting, which relates to the technical field of pipe fittings, and sequentially comprises an inner side stainless steel pipe, a rubber block for cushioning and an outer side stainless steel pipe, a rotating mechanism is arranged on the surface of an inner cavity of the inner side stainless steel pipe, and the rotating mechanism comprises a fixed block. The surface of one side of the fixing block is fixedly connected with the surface of an inner cavity of the inner side stainless steel pipe, the surface of the other side of the fixing block is fixedly connected with a pipe body, the surface of an inner cavity of the pipe body is rotationally connected with a rotating column, and the outer end of the rotating column is fixedly connected with a spoiler used for buffering the inner side stainless steel pipe. When the stainless steel pipe on the inner side is impacted by water flow, the spoiler is driven by the water flow to rotate, and when the rubber strip rotates on the rubber ring block, the rubber strip is continuously clamped in the clamping holes in different positions, so that the effect of enhancing the rotating resistance of the rotating column is achieved, the rotating resistance of the spoiler is enhanced, the water flow is weakened, and the service life of the spoiler is prolonged. And the effect of protecting the stainless steel pipe on the inner side is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe fittings technology, specifically to an impact-resistant pipe fitting. Background Technology

[0002] Stainless steel pipe fittings are tubular connectors made of stainless steel and are widely used in construction, chemical, food, and many other fields. Their material contains alloying elements such as chromium and nickel, giving them excellent corrosion resistance and making them resistant to rust and damage even in harsh environments such as humidity and acid / alkali conditions. The fittings come in a variety of specifications, covering everything from common water pipes to large-diameter industrial pipes, and in a variety of shapes, including elbows, tees, and straight fittings, to meet the pipe connection needs of different scenarios. With their high strength and excellent sealing performance, stainless steel pipe fittings ensure stable fluid transport and are easy to install, effectively improving the efficiency and quality of engineering construction.

[0003] Patent publication number CN205001827U discloses a stainless steel pipe fitting, including a pipe fitting body. The pipe fitting body includes a flat plate and an arc plate connected to the flat plate. A first transition arc plate and a second transition arc plate are provided at the connection between the arc plate and the flat plate. The flat plate is provided with a plurality of through holes.

[0004] To address the problem that traditional irregularly shaped pipe fittings often suffer localized dents due to pressure during use, leading to easy damage, existing technologies employ a first and second transition arc-shaped plate at the connection between the arc-shaped and flat plates. This effectively enhances the surface stress between the arc-shaped and flat plate connections, improving the structural strength of the connection. However, this approach still suffers from low strength due to the single-layer nature of the fitting and the lack of a water flow buffer, resulting in a short service life due to long-term water flow impact on the inner wall of the pipe. Therefore, we propose an impact-resistant pipe fitting. Utility Model Content

[0005] The purpose of this invention is to provide an impact-resistant pipe fitting to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] An impact-resistant pipe fitting comprises, in sequence, an inner stainless steel pipe, a rubber block for shock absorption, and an outer stainless steel pipe, wherein a rotating mechanism is provided on the inner surface of the inner stainless steel pipe.

[0008] The rotating mechanism includes a fixed block, one side surface of which is fixedly connected to the inner cavity surface of the inner stainless steel tube, and the other side surface of which is fixedly connected to a tube body. A rotating column is rotatably connected to the inner cavity surface of the tube body, and a baffle plate for buffering the inner stainless steel tube is fixedly connected to the outer end of the rotating column.

[0009] As a further preferred embodiment of this technical solution, a rubber ring is fixedly sleeved on the surface of the rotating column, and six sets of axially extending rubber strips are fixedly connected to the surface of the rotating column to enhance the rotational resistance of the spoiler.

[0010] As a further preferred embodiment of this technical solution, the inner cavity of the tube is provided with a rubber ring block, the inner surface of the rubber ring block is provided with multiple sets of snap-fit ​​holes for use with rubber strips, and the inner surface of the tube is provided with limiting holes for use with rubber rings.

[0011] As a further preferred embodiment of this technical solution, the surface of the rubber ring is rotatably connected to the surface of the limiting hole, and the surface of the rubber strip is rotatably engaged with the surface of the snap-fit ​​hole.

[0012] As a further preferred embodiment of this technical solution, the outer surface of the inner stainless steel tube is fixedly connected to one side of the rubber block, and the other side of the rubber block is fixedly connected to the inner surface of the outer stainless steel tube.

[0013] As a further preferred embodiment of this technical solution, the rotating mechanism is provided in four sets, with two sets of rotating mechanisms in the horizontal direction and two sets of rotating mechanisms in the vertical direction alternately arranged on the inner wall of the inner stainless steel tube.

[0014] This utility model has the following beneficial effects:

[0015] (1) When the inner stainless steel pipe is impacted by water flow, the water flow drives the baffle plate to rotate. When the rubber strip rotates on the rubber ring block, the rubber strip is continuously locked in the locking holes at different positions, which enhances the rotation resistance of the rotating column, thereby enhancing the rotation resistance of the baffle plate, weakening the water flow, protecting the inner stainless steel pipe, and thus extending the service life of the inner stainless steel pipe.

[0016] (2) When the water flow strongly impacts the inner wall of the inner stainless steel pipe or the outside impacts the outer stainless steel pipe, the rubber block will be compressed, which will play a buffering role, thereby protecting the inner stainless steel pipe and enhancing the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the rotating mechanism structure of this utility model;

[0020] Figure 4This is a schematic diagram showing the detailed structure of the rotating mechanism of this utility model.

[0021] In the diagram: 1. Inner stainless steel tube; 2. Rotating mechanism; 21. Fixing block; 22. Tube body; 23. Rotating column; 24. Baffle; 25. Rubber ring; 26. Rubber strip; 27. Rubber ring block; 28. Snap-fit ​​hole; 29. ​​Limiting hole; 3. Rubber block; 4. Outer stainless steel tube. Detailed Implementation

[0022] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Please see Figures 1-4 An impact-resistant pipe fitting includes, in sequence, an inner stainless steel pipe 1, a rubber block 3 for shock absorption, and an outer stainless steel pipe 4. The outer stainless steel pipe 4 is used to contact the outside world and plays a role in protecting the inner stainless steel pipe 1. A rotating mechanism 2 is provided on the inner surface of the inner stainless steel pipe 1.

[0025] The rotating mechanism 2 includes a fixed block 21. One side surface of the fixed block 21 is fixedly connected to the inner cavity surface of the inner stainless steel pipe 1. The other side surface of the fixed block 21 is fixedly connected to a pipe body 22. The inner cavity surface of the pipe body 22 is rotatably connected to a rotating column 23. The outer end of the rotating column 23 is fixedly connected to a baffle plate 24 (specifically, it can be a cross shape as shown in the figure) for buffering the inner stainless steel pipe 1. The impact of the water flow drives the baffle plate 24 and the rotating column 23 to rotate.

[0026] Please see Figures 1-4 A rubber ring 25 is fixedly sleeved on the surface of the rotating column 23. The rubber ring 25 is used to limit the position of the rotating column 23. Six sets of axially extending rubber strips 26 are fixedly connected to the surface of the rotating column 23 to enhance the rotational resistance of the spoiler 24.

[0027] Please see Figures 1-4The inner cavity of the tube body 22 is provided with a rubber ring block 27. The inner surface of the rubber ring block 27 is provided with multiple sets of snap-fit ​​holes 28 that cooperate with the rubber strip 26. The inner surface of the tube body 22 is provided with a limiting hole 29 that cooperates with the rubber ring 25. The surface of the rubber ring 25 is rotatably connected to the surface of the limiting hole 29 to fix the rotating column 23. The surface of the rubber strip 26 is rotatably snapped with the surface of the snap-fit ​​hole 28. Through the compression and rebound of the rubber strip 26, the rubber strip 26 is snapped in different snap-fit ​​holes 28, which helps to enhance the rotational resistance of the spoiler 24.

[0028] Please see Figures 1-4 The outer surface of the inner stainless steel pipe 1 is fixedly connected to one side of the rubber block 3, and the other side of the rubber block 3 is fixedly connected to the inner surface of the outer stainless steel pipe 4. When the water flow strongly impacts the inner wall of the inner stainless steel pipe 1 or the outside impacts the outer stainless steel pipe 4, the rubber block 3 will be compressed, which will play a buffering role and protect the inner stainless steel pipe 1.

[0029] Please see Figures 1-4 The rotating mechanism 2 is provided in four sets, with two sets of rotating mechanisms 2 in the horizontal direction and two sets of rotating mechanisms 2 in the vertical direction arranged alternately on the inner wall of the inner stainless steel tube 1.

[0030] As another embodiment of this utility model, the rotating mechanism 2 is designed in multiple groups and is located in the upper, lower and left and right positions of the inner cavity of the inner stainless steel pipe 1. The two rotating mechanisms 2 set at the upper and lower positions can also cause disturbance to the water flow in the vertical direction at different heights. Combined with the two sets of blades on the left and right, the water flow can rotate in the horizontal direction, which can make the water flow form a more complex three-dimensional flow state, more effectively disperse the water flow impact force, and play a role in protecting the inner stainless steel pipe 1.

[0031] The working principle of this impact-resistant pipe fitting will be explained in detail below.

[0032] like Figures 1-4 As shown, when the inner stainless steel pipe 1 is impacted by water flow, the rubber strip 26 will rotate on the rubber ring block 27. The rubber strip 26 will continuously engage with different engagement holes 28, thereby increasing the rotational resistance of the rotating column 23 and the rotational resistance of the baffle 24. When the baffle 24 is rotated by the water flow, it can form a complex three-dimensional flow pattern, effectively dispersing the impact force of the water flow and weakening the water flow, thus protecting the inner stainless steel pipe 1. When the water flow strongly impacts the inner wall of the inner stainless steel pipe 1 or the outside impacts the outer stainless steel pipe 4, the rubber block 3 will be compressed, which will have a buffering effect and also protect the inner stainless steel pipe 1.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An impact-resistant pipe fitting, comprising, in sequence, an inner stainless steel pipe (1), a shock-absorbing rubber block (3), and an outer stainless steel pipe (4), characterized in that: The inner surface of the inner stainless steel tube (1) is provided with a rotating mechanism (2). The rotating mechanism (2) includes a fixed block (21), one side surface of the fixed block (21) is fixedly connected to the inner cavity surface of the inner stainless steel tube (1), the other side surface of the fixed block (21) is fixedly connected to a tube body (22), the inner cavity surface of the tube body (22) is rotatably connected to a rotating column (23), and the outer end of the rotating column (23) is fixedly connected to a baffle plate (24) for buffering the inner stainless steel tube (1).

2. The impact-resistant pipe fitting according to claim 1, characterized in that: A rubber ring (25) is fixedly sleeved on the surface of the rotating column (23), and six sets of axially extending rubber strips (26) are fixedly connected to the surface of the rotating column (23) to enhance the rotational resistance of the spoiler (24).

3. The impact-resistant pipe fitting according to claim 2, characterized in that: The inner cavity of the tube body (22) is provided with a rubber ring block (27). The inner surface of the rubber ring block (27) is provided with multiple sets of snap-fit ​​holes (28) that cooperate with the rubber strip (26). The inner surface of the tube body (22) is provided with a limiting hole (29) that cooperates with the rubber ring (25).

4. The impact-resistant pipe fitting according to claim 3, characterized in that: The surface of the rubber ring (25) is rotatably connected to the surface of the limiting hole (29), and the surface of the rubber strip (26) is rotatably engaged with the surface of the snap-fit ​​hole (28).

5. The impact-resistant pipe fitting according to claim 1, characterized in that: The outer surface of the inner stainless steel tube (1) is fixedly connected to one side of the rubber block (3), and the other side of the rubber block (3) is fixedly connected to the inner surface of the outer stainless steel tube (4).

6. The impact-resistant pipe fitting according to claim 5, characterized in that: The rotating mechanism (2) is provided in four sets. Two sets of rotating mechanisms (2) in the horizontal direction and two sets of rotating mechanisms (2) in the vertical direction are alternately arranged on the inner wall of the inner stainless steel tube (1).

Citation Information

Patent Citations

  • Stainless steel pipe

    CN205001827U