Anti-winding and anti-backflow water pipe with filtering effect

Abstract

The application discloses a kind of anti-winding anti-backflow water pipes with filtering effect, including pipe body, one end of pipe body is connected with short tooth, the other end of pipe body is installed with recess core pipe, recess core pipe is externally sheathed with long nut, long nut and recess core pipe rotate and cooperate, one end of recess core pipe is provided with check valve located in the interior of long nut, check valve and recess core pipe are fixedly connected, check valve and long nut rotate and cooperate, one end of check valve is provided with connecting ring located in the interior of long nut, connecting ring and long nut are fixedly connected, connecting ring interior is provided with cross bar, fastening assembly is slidably arranged on cross bar, one end of cross bar is provided with bolt, bolt is threadedly cooperated with nut, filter screen is slidably arranged on nut, filter screen is conical, the edge of filter screen is located between fastening assembly and connecting ring, the application has reasonable structure, solve the problem that existing faucet pipe does not have anti-backflow and does not have filtering capacity.

Description

Technical Field

[0001] This invention relates to the field of faucet pipes, and in particular to a water pipe with anti-winding, anti-backflow, and filtering effect. Background Technology

[0002] Water pipes are pipes that supply water. Existing faucet pipes are metal braided pipes that connect to external pipes using adjustable nuts at both ends, ensuring ease of installation. However, when ordinary water pipes are connected to the pipeline, water flows from one end to the other. When the valve is closed, the sewage at the end of the pipe can cause backflow and contamination due to the negative pressure inside the pipe. To solve the problem of water-insoluble impurities, physical filtration is usually used. Traditional filter discs are directly fixed inside the pipe. When the filter discs are damaged or clogged, they are inconvenient to replace or clean, leading to increased maintenance costs. To address these issues, a solution is proposed below. Summary of the Invention

[0003] The purpose of this invention is to provide a water pipe that is anti-tangling, anti-backflow, and has a filtering effect, thereby solving the problems that existing faucet pipes do not have anti-backflow and filtering capabilities.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0005] A water pipe with anti-winding, anti-backflow, and filtering effect includes a pipe body. One end of the pipe body is connected to a short thread, and the other end of the pipe body is fitted with a grooved core tube. A long nut is fitted over the grooved core tube, and the long nut and the grooved core tube are rotatably engaged. A check valve is provided at one end of the grooved core tube, located inside the long nut, and is fixedly connected to the grooved core tube. The check valve and the long nut are rotatably engaged. A connecting ring is provided at one end of the check valve, located inside the long nut, and is fixedly connected to the long nut. A crossbar is provided inside the connecting ring, and a fastening component is slidably mounted on the crossbar. A bolt is provided at one end of the crossbar, and a nut is threaded onto the bolt. A filter screen is slidably mounted on the nut. The filter screen is conical, and its edge is located between the fastening component and the connecting ring. An elastic sealing gasket is glued to the inner side of the edge of the filter screen.

[0006] Preferably, the fastening assembly includes a sliding ring, a fixed ring, a V-shaped metal elastic piece, and a limiting rod. The fixed ring is sleeved on the crossbar and is fixedly connected to the crossbar. The sliding ring is sleeved on the crossbar and slides with the crossbar. Several V-shaped metal elastic pieces are arranged radially around the crossbar, and both ends of the V-shaped metal elastic pieces are fixedly connected to the fixed ring and the sliding ring, respectively. The limiting rod is slidably sleeved on the crossbar and is located between the fixed ring and the sliding ring.

[0007] Preferably, the outer arc surface of the grooved core tube is provided with several slots, and an O-ring is installed inside the slot. The O-ring is in close contact with the long nut, and the surface of the O-ring is coated with a layer of silicone oil for lubrication.

[0008] Preferably, the long nut is fitted with an indicator ring that limits its position, and one end of the indicator ring is fixedly connected to the outer side of the grooved core tube.

[0009] Preferably, a tension steel sleeve is fitted at the connection between the tube body and the grooved core tube to enhance stability, and the two ends of the tension steel sleeve are respectively pressed against the tube body and the grooved core tube.

[0010] Preferably, an O-ring two, which provides a sealing effect, is snapped onto the short tooth.

[0011] Preferably, a spring is fitted onto the nut, the spring being located at the end of the filter screen away from the fastening assembly, and the two ends of the spring being in close contact with the filter screen and one end of the nut, respectively.

[0012] Preferably, one end of the nut has a notch to facilitate subsequent force application.

[0013] Preferably, the tube is a PET braided tube.

[0014] Beneficial effects:

[0015] (1) The grooved core tube, O-ring, long nut and indicator ring are used in combination so that the long nut can rotate at any angle when installed inside the pipe, so that the pipe body will not rotate during installation, achieving a sealing effect while preventing tangling during installation, eliminating the phenomenon of pipe body twisting during water pipe installation, and ensuring the water pipe's passability.

[0016] (2) The check valve embedded in the inner wall of the long nut utilizes the one-way passage of the check valve, allowing the liquid to flow in one direction. When the valve is closed, the check valve resets to achieve a sealing effect, thereby preventing backflow and effectively preventing sewage from flowing back into the pipeline system at the end, thus achieving the goal of healthy drinking water.

[0017] (3) The filter screen filters the water flowing into the pipe body, thereby separating the water from the solid impurities that are insoluble in water, so as to achieve sanitary water use. At the same time, the cone-shaped filter screen is used to increase the water passage area of ​​the filter screen and reduce the influence of the filter screen on the flow rate.

[0018] (4) The filter screen is fixed with bolts and nuts, which makes it easy to disassemble and clean it later, avoiding the need to replace the entire pipeline due to blockage, reducing waste and maintenance costs;

[0019] (5) When the nut is turned, the fastening component will be activated. The fastening component will expand and squeeze the edge of the filter screen to ensure the fit between the filter screen and the connecting ring, ensure the sealing of the edge, and prevent water leakage. At the same time, the fastening component has a rebound effect, which will tighten the nut and prevent the filter screen from falling off due to the impact of water flow.

[0020] (6) The spring ensures that the filter screen can be installed in place during installation, avoiding the problem of improper installation caused by the filter screen sliding on the nut before installation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0022] Figure 2 This is a cross-sectional schematic diagram used to illustrate the fastening assembly in an embodiment;

[0023] Figure 3 This is a schematic diagram used as an example to illustrate the connection relationship between the crossbar and the connecting ring;

[0024] Figure 4 This is a schematic diagram used to illustrate the spring and the notch in the example.

[0025] Reference numerals: 1. Tube body; 2. Short thread; 3. Grooved core tube; 4. Long nut; 5. Check valve; 6. Connecting ring; 7. Crossbar; 8. Fastening assembly; 9. Bolt; 10. Nut; 11. Filter screen; 12. Elastic sealing gasket; 13. Sliding ring; 14. Fixing ring; 15. V-shaped metal elastic sheet; 16. Limiting rod; 17. Bayonet; 18. O-ring one; 20. Indicator ring; 21. Tension steel sleeve; 22. O-ring two; 23. Spring; 24. Notch. Detailed Implementation

[0026] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of the present invention should be considered within the protection scope of the present invention. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the protection scope of the present invention.

[0027] See Figure 1 As shown, a water pipe with anti-winding, anti-backflow, and filtering effect includes a pipe body 1, which is a PET braided pipe. One end of the pipe body 1 is connected to a short thread 2, which is formed by extruding bar stock or hot stamping blank. An O-ring 22 for sealing effect is snapped onto the short thread 2. The short thread 2 is connected to an external water pipe. The design of the short thread 2 is convenient for installation. The O-ring 22 provides a sealing effect between the short thread 2 and the external water pipe.

[0028] See Figure 1 As shown, a grooved core tube 3 is installed at the other end of the tube body 1. The annealing hardness requirement for the grooved core tube 3 is 110-150 HV. A tensile steel sleeve 21 is fitted at the connection between the tube body 1 and the grooved core tube 3 to enhance stability. The Vickers hardness of the tensile steel sleeve 21 is 200°±20° HV. The two ends of the tensile steel sleeve 21 are respectively pressed against the tube body 1 and the grooved core tube 3, which increases the stability of the connection between the grooved core tube 3 and the tube body 1. A long nut is fitted on the outside of the grooved core tube 3. 4. The long nut 4 and the grooved core tube 3 are rotatably fitted. Several slots 17 are evenly opened on the outer arc surface of the grooved core tube 3. An O-ring 18 is installed inside the slot 17. The O-ring 18 is tightly attached to the long nut 4 and provides a sealing effect between the long nut 4 and the grooved core tube 3. An indicator ring 20 is fitted on the outside of the long nut 4 to limit the position of the long nut 4 and ensure that the long nut 4 is more stable when rotating. One end of the indicator ring 20 is fixedly connected to the outer side of the grooved core tube 3.

[0029] The long nut 4 and the external faucet are connected by threads. The grooved core tube 3, O-ring 18, long nut 4 and indicator ring 20 are used together to allow the long nut 4 to rotate at any angle, achieving a sealing effect while preventing tangling during installation and eliminating pipe twisting during installation. The surface of the O-ring 18 is coated with a silicone oil layer for lubrication, which ensures smooth rotation.

[0030] See Figure 2 , Figure 3 and Figure 4 As shown, a connecting ring 6 is fixedly installed inside the long nut 4, and the connecting ring 6 and the long nut 4 are fixedly connected. A crossbar 7 is installed inside the connecting ring 6, and a bolt 9 is installed at one end of the crossbar 7. The bolt 9 is threaded with a nut 10. The bolt 9 and nut 10 are used for fixing, which facilitates the disassembly and cleaning of the filter screen 11 later, avoids the need to replace the entire pipe due to blockage, and reduces waste. One end of the nut 10 has a notch 24 to facilitate subsequent force application. The filter screen 11 is slidably installed on the nut 10. A spring 23 is sleeved on the nut 10. The spring 23 is located at the end of the filter screen 11 away from the fastening component 8. The two ends of the spring 23 are respectively in close contact with the filter screen 11 and one end of the nut 10. The addition of the spring 23 makes the filter screen 11 located at the leftmost side of the nut 10 during installation, which facilitates the installation of the filter screen 11. The filter screen 11 is conical, and the edge of the filter screen 11 is located between the fastening component 8 and the connecting ring 6. An elastic sealing gasket 12 is glued to the inner side of the edge of the filter screen 11.

[0031] See Figure 2 , Figure 3 and Figure 4As shown, a fastening assembly 8 is slidably mounted on the crossbar 7. The fastening assembly 8 includes a sliding ring 13, a fixed ring 14, V-shaped metal elastic pieces 15, and a limiting rod 16. The fixed ring 14 is sleeved on the crossbar 7 and is fixedly connected to the crossbar 7. The sliding ring 13 is sleeved on the crossbar 7 and slides in cooperation with the crossbar 7. Several V-shaped metal elastic pieces 15 are arranged radially around the crossbar 7, and both ends of the V-shaped metal elastic pieces 15 are fixedly connected to the fixed ring 14 and the sliding ring 13, respectively. The limiting rod 16 is slidably sleeved on the crossbar 7 and is located between the fixed ring 14 and the sliding ring 13. The limiting ring can maintain the distance between the sliding ring 13 and the fixed ring 14, preventing damage to the V-shaped metal elastic pieces 15 due to excessive close proximity.

[0032] The filter screen 11 filters the water flowing into the pipe body 1 to achieve sanitary water use. At the same time, the cone-shaped filter screen 11 increases the water passage area of ​​the filter screen 11 and reduces the impact of the filter screen on the flow rate. When the nut 10 is tightened, it will activate the fastening component 8. The fastening component 8 will expand and squeeze the edge of the filter screen 11 to ensure the fit between the filter screen 11 and the connecting ring 6, ensure filtration performance, and prevent water leakage. At the same time, the fastening component 8 has a spring-loaded effect, which will tighten the nut 10 and prevent the filter screen 11 from falling off due to the impact of the water flow.

[0033] See Figure 1 As shown, a check valve 5 is installed at one end of the grooved core tube 3 inside the long nut 4. The normal operating pressure of the check valve 5 is 5PSI-125PSI. The check valve 5 and the grooved core tube 3 are fixedly connected. The check valve 5 and the long nut 4 are rotated together. The check valve 5 is embedded in the inner wall of the long nut 4 to prevent backflow. This effectively prevents sewage from flowing back into the pipeline system at the end, thus achieving the goal of healthy drinking water.

Claims

1. A water pipe with anti-winding, anti-backflow, and filtering effect, comprising a pipe body (1), characterized in that, One end of the tube body (1) is connected to a short thread (2), and the other end of the tube body (1) is fitted with a grooved core tube (3). A long nut (4) is fitted around the outside of the grooved core tube (3). The long nut (4) and the grooved core tube (3) are rotatably engaged. One end of the grooved core tube (3) is provided with a check valve (5) located inside the long nut (4). The check valve (5) and the grooved core tube (3) are fixedly connected. The check valve (5) and the long nut (4) are rotatably engaged. One end of the check valve (5) is provided with a connecting ring (6) located inside the long nut (4). A connecting ring (6) and a long nut (4) are fixedly connected. A crossbar (7) is provided inside the connecting ring (6). A fastening component (8) is slidably provided on the crossbar (7). A bolt (9) is provided at one end of the crossbar (7). A nut (10) is threaded onto the bolt (9). A filter screen (11) is slidably provided on the nut (10). The filter screen (11) is conical. The edge of the filter screen (11) is located between the fastening component (8) and the connecting ring (6). An elastic sealing gasket (12) is glued to the inner side of the edge of the filter screen (11). The fastening assembly (8) includes a sliding ring (13), a fixed ring (14), a V-shaped metal elastic piece (15), and a limiting rod (16). The fixed ring (14) is sleeved on the crossbar (7) and the fixed ring (14) and the crossbar (7) are fixedly connected. The sliding ring (13) is sleeved on the crossbar (7) and the sliding ring and the crossbar (7) are slidably engaged. A plurality of V-shaped metal elastic pieces (15) are provided and are arranged radially around the crossbar (7). The two ends of the V-shaped metal elastic pieces (15) are fixedly connected to the fixed ring (14) and the sliding ring (13) respectively. The limiting rod (16) is slidably sleeved on the crossbar (7) and the limiting rod (16) is located between the fixed ring (14) and the sliding ring (13). A spring (23) is fitted on the nut (10). The spring (23) is located at the end of the filter screen (11) away from the fastening assembly (8). The two ends of the spring (23) are respectively in close contact with the filter screen (11) and one end of the nut (10).

2. A water pipe with anti-winding, anti-backflow, and filtering effect according to claim 1, characterized in that, The grooved core tube (3) has several slots (17) evenly opened on its outer arc surface. An O-ring (18) is installed inside the slot (17). The O-ring (18) is in close contact with the long nut (4), and the surface of the O-ring (18) is coated with a silicone oil layer that serves as a lubricant.

3. A water pipe with anti-winding, anti-backflow, and filtering effect according to claim 1, characterized in that, The long nut (4) is fitted with an indicator ring (20) that limits the position of the long nut (4), and one end of the indicator ring (20) is fixedly connected to the outer side of the grooved core tube (3).

4. A water pipe with anti-winding, anti-backflow, and filtering effect according to claim 1, characterized in that, A tension steel sleeve (21) is provided at the connection between the tube body (1) and the grooved core tube (3) to enhance stability. The two ends of the tension steel sleeve (21) are respectively pressed into the tube body (1) and the grooved core tube (3).

5. A water pipe with anti-winding, anti-backflow, and filtering effect according to claim 1, characterized in that, The short tooth (2) is fitted with an O-ring two (22) that provides a sealing effect.

6. A water pipe with anti-winding, anti-backflow, and filtering effect according to claim 1, characterized in that, One end of the nut (10) has a notch (24) to facilitate subsequent force application.

7. A water pipe with anti-winding, anti-backflow, and filtering effect according to claim 1, characterized in that, The tube body (1) is a PET braided tube.

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