U-shaped water return pipe with cap

Abstract

The utility model relates to the technical field of U-shaped water return pipes, and discloses a capped U-shaped water return pipe which comprises a straight pipe body, one end of the straight pipe body is fixedly connected with a U-shaped pipe body, a sealing cover assembly is arranged in the U-shaped pipe body and used for sealing the U-shaped pipe body, the other end of the straight pipe body is provided with a connecting assembly, and the connecting assembly is fixedly connected with the straight pipe body. The connecting assembly is used for being connected with the other straight pipe body, the sealing cover assembly comprises a connecting pin, the connecting pin is fixedly connected to the interior of the U-shaped pipe body, and a fixing bolt is fixedly connected to the top of the connecting pin. According to the utility model, the pipe orifice is automatically closed by the cap, so that sundries cannot easily enter the water return pipe from the outside, and the contact area and the contact time of water seal water and external air are reduced, thereby effectively preventing the evaporation of water in the water seal, effectively preventing the sundries from entering the water return pipe to block a pipeline, reducing the evaporation of the water seal water, and prolonging the service life of the water return pipe. Therefore, the daily inspection and maintenance amount is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of U-shaped water return pipes, in particular to a U-shaped water return pipe with a cap. Background Art

[0002] A U-shaped drainpipe is a specially shaped pipe with a U-shaped design. It utilizes the water column that accumulates at the bottom of the U to form a water seal, playing a key role in preventing backflow in the piping system. When pressure within the pipe fluctuates, such as when negative pressure occurs, external air or other substances that could potentially flow back through the seal must overcome the pressure of the water seal before entering the upstream pipe. This effectively prevents the backflow of odors, harmful gases, and other substances. It is widely used in many fields, including building drainage systems, industrial drainage and ventilation systems, and laboratory drainage systems, ensuring safe and hygienic drainage and ventilation.

[0003] A U-shaped drainpipe primarily consists of a pipe body and a connection. The U-shaped pipe body is typically made of materials such as PVC plastic and stainless steel. The wall thickness ensures strength, allowing it to withstand pressure without deformation or rupture. The pipe diameter is sized based on the specific application scenario, and the two pipe ends are positioned at different heights. Connection components, such as flanges and socket joints, are located at each end of the pipe body, ensuring a tight and sealed connection to upstream and downstream pipelines.

[0004] At present, when there is water accumulation in the closed wall of a coal mine, a water return pool or a water return pipe must be set up for sealing. The construction of the water return pool is complicated and the sealing effect is poor. Generally, a water return pipe is set up, but the water return pipe currently used is a U-shaped water seal water return pipe, which is open at both ends without pipe cap protection and has the following defects: 1. It is easy for debris to fall and clog the water return pipe; 2. If there is no water in the closed wall, the water seal in the U-shaped water seal water return pipe is easy to evaporate, causing the water return pipe to lose its sealing effect and gas and harmful gases in the closed wall to gush out; 3. The water seal in the U-shaped water seal water return pipe evaporates, causing the water return pipe to lose its sealing effect, and the water return pipe forms an air leakage channel inside and outside the closed wall. Oxygen enters the closed wall and oxidizes the coal body in the closed area, forming a spontaneous combustion accident. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a U-shaped drain pipe with a cap, which aims to improve the problems of traditional U-shaped drain pipes such as debris clogging the drain pipe and gas and harmful gases gushing out of the wall.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a U-shaped water return pipe with a cap, comprising a straight pipe body, one end of the straight pipe body is fixedly connected to the U-shaped pipe body, a sealing assembly is provided inside the U-shaped pipe body, the sealing assembly is used to close the U-shaped pipe body, and the other end of the straight pipe body is provided with a connecting assembly, the connecting assembly is used to connect to another straight pipe body;

[0007] The sealing assembly includes a connecting pin, which is fixedly connected to the inside of the U-shaped tube body. A fixing bolt is fixedly connected to the top of the connecting pin, a stud is fixedly connected to the top of the fixing bolt, a nut is threadedly connected to the outer wall of the stud, and a cap is slidably connected to the outer wall of the stud.

[0008] Furthermore, the connecting assembly includes a fixing column, and the fixing column is fixedly connected to the other end of the straight pipe body.

[0009] Furthermore, a circular groove is provided inside the fixing column.

[0010] Furthermore, the side wall of the fixing column is fixedly connected to the side plate 1, and the side wall of the fixing column is fixedly connected to the side plate 2.

[0011] Furthermore, the side panel 1 and the side panel 2 are symmetrical up and down on the side wall of the fixing column.

[0012] Furthermore, a sliding groove is provided inside the side panel 1 and the side panel 2, and a vertically symmetrical clamping plate is fixedly connected to the side wall of the fixing column.

[0013] Furthermore, the clamping plate is slidably connected inside the sliding groove.

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

[0015] 1. In the utility model, the impact force of water is first applied to the cap. Since the water force is large enough, it overcomes the gravity of the cap and other possible obstacles such as friction, and pushes the cap to slide upward along the stud, so that the pipe mouth is opened and water can overflow smoothly. When there is no water overflowing in the closed area, the cap slides down along the stud back to the initial position under the action of its own gravity, and automatically closes the pipe mouth, ensuring that debris will not easily enter the return pipe from the outside, reducing the contact area and contact time between the water seal water and the outside air, thereby effectively preventing the evaporation of water in the water seal, and also effectively preventing debris from entering the return pipe and clogging the pipe, reducing the evaporation of water in the water seal, and thus reducing the amount of daily inspection and maintenance.

[0016] 2. In the present invention, the multiple card plates on the side wall are driven to rotate by the fixed column. During the rotation, the card plates will enter the sliding grooves inside the side panels 1 and 2. At the same time, the card plates on the other side will also slide into the side panels 1 and 2 on this side to achieve two-way locking. The multi-section U-shaped drain pipes can be flexibly combined according to the actual terrain and drainage path, so that they can better adapt to various complex drainage scenarios and improve the overall adaptability of the drainage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a U-shaped water return pipe with a cap proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the U-shaped pipe body structure of a U-shaped water return pipe with a cap proposed by the utility model;

[0019] Figure 3 The figure is a schematic diagram of the fixed column structure of a U-shaped water return pipe with a cap proposed by the present invention.

[0020] Legend:

[0021] 1. Straight pipe body; 2. U-shaped pipe body; 3. Connecting pin; 4. Fixing bolt; 5. Stud; 6. Nut; 7. Cover cap; 8. Fixing column; 9. Round groove; 10. Side panel 1; 11. Side panel 2; 12. Slide groove; 13. Card plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1-Figure 2 The present invention provides an embodiment of a capped U-shaped drain pipe, comprising a straight pipe body 1, which constitutes one of the basic units of a drainage pipe system. The straight pipe body 1 is in the shape of a straight pipe, one end of which is fixedly connected to a U-shaped pipe body 2, which cooperates with the straight pipe body 1 to jointly construct a complete drainage pipe network. A sealing component is provided inside the U-shaped pipe body 2, which is used to close the U-shaped pipe body 2. A connecting component is provided at the other end of the straight pipe body 1, which is used to connect to another straight pipe body 1.

[0024] The capping assembly includes a connecting pin 3, which is firmly fixed inside the U-shaped tube body to provide support for the capping assembly. The connecting pin 3 is fixedly connected to the inside of the U-shaped tube body 2. The top of the connecting pin 3 is fixedly connected to a fixing bolt 4, and the top of the fixing bolt 4 is fixedly connected to a stud 5. The outer wall of the stud 5 is threaded with a nut 6. The outer wall of the stud 5 is slidably connected to a cap 7, which is installed on the U-shaped tube body. When water overflows from the sealed area and the hydraulic pressure is large enough, the cap 7 will be pushed to slide upward along the stud 5, opening the tube mouth for drainage. When there is no water overflow, the cap 7 returns to its original position under the action of gravity and closes the tube mouth. This automatic opening and closing function not only ensures normal drainage, but also prevents the ingress of debris and reduces the evaporation of the water seal.

[0025] Specifically, first of all, the U-shaped tube body 2 and the straight tube body 1 together constitute the main shape of the entire pipeline. In the process of water flowing in the pipeline, when the water reaches the bottom of the U-shaped tube body 2, it will gradually gather and form a water column of a certain height, which can effectively prevent odor, including various harmful gases or other substances that may exist in the downstream of the pipeline from flowing upstream, thereby ensuring the cleanliness and hygiene of the upstream environment of the pipeline. When water overflows in the confined space, the water will generate an impact force, and this impact force acts on the cap 7. If the water force is large enough at this time and exceeds the gravity of the cap 7 itself and other possible friction factors that hinder the movement of the cap 7, then the impact force of the water will push the cap 7 to slide upward along the stud 5, so that the pipe mouth will be opened and the water can overflow smoothly. When there is no water overflow in the confined space, the cap 7 will move downward along the stud 5 under the action of its own gravity. The cap 7 is not as good as the one in the U-shaped pipe, and it can slide back to its original position, and the pipe mouth is automatically closed. The design that the pipe mouth waterproof cap can only be opened in the forward direction is very clever. It ensures that debris will not easily enter the drain pipe from the outside. This is because debris does not have enough power like water to overcome gravity and other related factors to push the cap 7 to open. At the same time, since the pipe mouth is in a closed state when there is no water overflow, this reduces the contact area and contact time between the water seal water and the outside air. The reduction in the contact between the water seal water and the air can effectively prevent the evaporation of the water seal water. Through this working method, this U-shaped drain pipe with a cap can not only ensure that the normal drainage function of the pipeline is smoothly realized, but also effectively prevent debris from entering the drain pipe and causing the problem of pipeline blockage. At the same time, it reduces the evaporation of water seal water, thereby reducing the workload of daily inspection and maintenance of the pipeline, and improving the stability and reliability of the entire drainage system.

[0026] Reference Figure 3 The connection assembly includes a fixed column 8, which is located on the side wall of the straight tube body 1. When the straight tube body 1 rotates, it will rotate synchronously. The fixed column 8 is fixedly connected to the other end of the straight tube body 1. A circular groove 9 is provided inside the fixed column 8. The side wall of the fixed column 8 is fixedly connected to a side plate 10, which together with the side plate 2 11 constitutes a structure with a slide groove 12. The side wall of the fixed column 8 is fixedly connected to the side plate 2 11. The side plate 10 and the side plate 2 11 are symmetrical up and down on the side wall of the fixed column 8. The side plate 10 and the side plate 2 11 are both provided with a slide groove 12, which is a sliding channel specially designed for the card plate 13. After rotation, the card plate 13 enters the slide groove 12. Through the guiding effect of the slide groove 12, the card plate 13 can accurately slide between the side plate 10 and the side plate 2 11, thereby realizing a stable connection between the straight tube body 1. The side wall of the fixed column 8 is fixedly connected to the card plate 13 that is symmetrical up and down. The card plate 13 is slidably connected inside the slide groove 12.

[0027] Specifically, after ensuring that the ports are accurately aligned, one of the straight tube bodies 1 is then rotated. As the straight tube body 1 rotates, it drives the fixed column 8 fixedly installed on its side wall to rotate synchronously. During the rotation of the fixed column 8, it further drives the multiple card plates 13 connected to its side walls to rotate together. During the rotation, these card plates 13 will gradually enter the pre-set chute 12 inside the side plate 10 and the side plate 2 11. At the same time, the card plate 13 on the other side will also slide along the corresponding path and then enter the side plate 10 and the side plate 2 11 on this side. In this way, The effect of two-way locking is achieved, so that the two adjacent straight pipe bodies 1 can be tightly and firmly connected together. In this way, the U-shaped drain pipe formed by multiple sections can be flexibly and variously combined according to the actual terrain conditions and specific drainage path requirements. Whether in an area with large terrain undulations or in an area with more complex drainage directions, the connection method and arrangement order of each straight pipe body 1 can be cleverly adjusted to enable it to better adapt to various complex drainage scenarios. This flexible combination feature greatly improves the overall adaptability of the drainage system, ensuring that drainage work can be carried out smoothly and efficiently in different environments.

[0028] Working principle: First, the U-tube body 2 and the straight tube body 1 constitute the main shape of the entire pipeline. When water flows in the pipeline, when it reaches the bottom of the U-tube body 2, a water column of a certain height will be formed, thereby forming a water seal. This water seal can prevent odor, harmful gases or other substances from flowing back from the downstream of the pipeline to the upstream. For the sealing assembly, the connecting pin 3 is firmly fixed inside the U-tube body 2 to provide support for the entire sealing assembly. The connection structure of the fixing bolt 4, stud 5 and nut 6 enables the cap 7 to be stably installed on the U-tube body 2. When the seal is When water overflows from the closed area, the impact force of the water acts on the cap 7. Since the water force is large enough, it overcomes the gravity of the cap 7 and other possible obstacles such as friction, pushing the cap 7 to slide upward along the stud 5, so that the pipe mouth is opened and water can overflow smoothly. When there is no water overflowing from the closed area, the cap 7 slides down along the stud 5 to return to its original position under the action of its own gravity, automatically closing the pipe mouth. The design of this pipe mouth waterproof cap can only be opened in the forward direction, ensuring that debris will not easily enter the back-flow pipe from the outside, because debris does not have enough strength to overcome gravity like water. Factors such as these push the cap 7 to open. At the same time, since the pipe mouth is in a closed state when there is no water overflow, the contact area and contact time between the water seal water and the outside air are reduced, thereby effectively preventing the evaporation of water in the water seal. Through this working method, the U-shaped water return pipe with a cap can not only ensure the normal drainage function of the pipeline, but also effectively prevent debris from entering the water return pipe to block the pipeline, reduce the evaporation of water seal water, and thus reduce the amount of daily inspection and maintenance. When multiple straight pipe bodies 1 need to be connected to each other, the ports between the straight pipe bodies 1 are aligned, and at this time, one of the straight pipe bodies 1 is rotated. The rotation of the straight pipe body 1 drives the fixed column 8 on its side wall to rotate synchronously, and the fixed column 8 then drives the multiple card plates 13 on its side wall to rotate. During the rotation process, the card plate 13 will enter the slide groove 12 inside the side plate 10 and the side plate 2 11. At the same time, the card plate 13 on the other side will also slide into the side plate 10 and the side plate 2 11 on this side to achieve two-way locking. The multi-section connected U-shaped backflow pipe can be flexibly combined according to the actual terrain and drainage path, so that it can better adapt to various complex drainage scenarios and improve the overall adaptability of the drainage system.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A U-shaped water return pipe with a cap, comprising a straight pipe body (1), characterized in that: One end of the straight tube body (1) is fixedly connected to a U-shaped tube body (2); a sealing assembly is provided inside the U-shaped tube body (2); the sealing assembly is used to seal the U-shaped tube body (2); the other end of the straight tube body (1) is provided with a connecting assembly; the connecting assembly is used to connect to another straight tube body (1); The sealing assembly comprises a connecting pin (3), the connecting pin (3) being fixedly connected to the inside of the U-shaped tube body (2), the top of the connecting pin (3) being fixedly connected to a fixing bolt (4), the top of the fixing bolt (4) being fixedly connected to a stud (5), the outer wall of the stud (5) being threadedly connected to a nut (6), and the outer wall of the stud (5) being slidably connected to a cap (7).

2. The capped U-shaped water return pipe according to claim 1, characterized in that: The connecting assembly comprises a fixing column (8), and the fixing column (8) is fixedly connected to the other end of the straight pipe body (1).

3. The capped U-shaped water return pipe according to claim 2, characterized in that: A circular groove (9) is provided inside the fixing column (8).

4. The capped U-shaped water return pipe according to claim 3, characterized in that: The side wall of the fixed column (8) is fixedly connected to a side plate 1 (10), and the side wall of the fixed column (8) is fixedly connected to a side plate 2 (11).

5. The capped U-shaped water return pipe according to claim 4, characterized in that: The side panel 1 (10) and the side panel 2 (11) are symmetrical up and down on the side wall of the fixing column (8).

6. The capped U-shaped water return pipe according to claim 5, characterized in that: The side panel 1 (10) and the side panel 2 (11) are both provided with a sliding groove (12) inside, and the side wall of the fixed column (8) is fixedly connected with a clamping plate (13) which is symmetrical up and down.

7. The capped U-shaped water return pipe according to claim 6, characterized in that: The clamping plate (13) is slidably connected inside the sliding groove (12).

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