Telescopic expansion anti-backflow garden water pipe
By installing a flow-blocking plate and an elastic reset component at the end of the water pipe, the inlet is automatically sealed by changes in water pressure, solving the problem of backflow after irrigation with traditional telescopic water pipes, achieving an anti-backflow effect, and improving the environmental performance of the water pipe.
Patent Information
- Application Number
- CN202422427478.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Traditional retractable water pipes are prone to backflow after irrigation, leading to water pollution, especially after nutrient solution irrigation, where the backflowing nutrient solution contaminates the nutrient solution in the irrigation bucket.
A retractable and expandable anti-backflow garden water pipe was designed. By setting a flow-blocking plate and an elastic reset component at the end of the water pipe, the inlet is automatically sealed by water pressure changes to prevent water backflow.
It effectively prevents water backflow in the pipes, improves the green and environmentally friendly performance of the pipes, and avoids water pollution.
Smart Images
Figure CN223537016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of irrigation equipment technology, specifically a retractable and expandable anti-backflow garden water pipe. Background Technology
[0002] Retractable water pipes are now very common, especially in garden irrigation and other fields. As a commonly used irrigation device, retractable water pipes play a vital role in garden operations.
[0003] However, traditional retractable water pipes are prone to backflow after irrigation, which can cause some pollution to the water source. In particular, after nutrient solution irrigation, the backflow of nutrient solution will contaminate the nutrient solution in the irrigation bucket. Therefore, a retractable water pipe that prevents backflow is needed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a retractable and expandable anti-backflow garden water pipe, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a telescopic and expandable anti-backflow garden water pipe, characterized in that it includes a water pipe end, a telescopic outer pipe, and an elastic flexible hose. The telescopic outer pipe is fixedly sleeved on the outer circumference of the elastic flexible hose. The telescopic outer pipe is fixedly connected to the water pipe end. An inlet is provided on the water pipe end. A flow-blocking plate is provided on the side of the inlet near the telescopic outer pipe. A third slider is fixedly connected to the flow-blocking plate. A sliding cavity is provided on the water pipe end. The third slider is slidably connected to the sliding cavity. An elastic reset component is provided inside the sliding cavity.
[0008] Preferably, the elastic reset assembly includes a flow limiting plate and a first slider. The first slider is disposed on the side of the flow limiting plate near the third slider. The flow limiting plate is fixedly connected to one side wall of the sliding cavity. The first slider is slidably connected to the sliding cavity. A flow limiting hole is formed on the flow limiting plate. A second slider is fixedly connected to one end face of the third slider near the flow limiting plate.
[0009] Preferably, the second slider is slidably connected to the sliding cavity, the second slider and the first slider form a second cavity, the flow limiting plate and the sliding cavity form a third cavity, the second cavity is filled with inert gas, and the third cavity is filled with damping oil.
[0010] Preferably, a limiting plate is fixedly connected to one end of the sliding cavity near the flow-blocking plate, and the third slider is slidably connected to the limiting plate.
[0011] Preferably, the diameter of the second slider is equal to the diameter of the sliding cavity, and a sealing ring is fixedly provided on the outer circular surface of the second slider.
[0012] Preferably, the diameter of the flow-blocking plate is larger than the diameter of the liquid inlet.
[0013] (III) Beneficial Effects
[0014] This utility model provides a retractable and expandable anti-backflow garden water pipe. It has the following beneficial effects:
[0015] 1. This solution uses an elastic reset component at the end of the water pipe to reset and seal the inlet of the baffle plate. When the faucet connected to the inlet is closed, the baffle plate can automatically seal the inlet, thereby preventing water from flowing back into the water pipe and improving the green and environmentally friendly performance of the water pipe. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the right-side structure of this utility model;
[0018] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;
[0019] Figure 4 for Figure 3 A magnified structural diagram of B in the diagram.
[0020] In the diagram: 11. Water pipe end; 12. Liquid inlet; 13. Telescopic outer pipe; 14. Flexible hose; 15. Flow baffle; 16. Sliding cavity; 17. Second cavity; 18. Third cavity; 20. Flow limiting plate; 21. Flow limiting hole; 22. First slider; 23. Second slider; 24. Limiting plate; 25. Third slider. Detailed Implementation
[0021] This utility model embodiment provides a retractable and expandable anti-backflow garden water pipe, such as... Figure 1-4 As shown, it includes a water pipe end 11, a liquid inlet 12, a telescopic outer pipe 13, an elastic hose 14, a flow baffle 15, a sliding cavity 16, a second cavity 17, a third cavity 18, a flow limiting plate 20, a flow limiting hole 21, a first slider 22, a second slider 23, a limiting plate 24, and a third slider 25.
[0022] like Figure 1-4As shown, the telescopic outer tube 13 is fixedly sleeved on the outer circular surface of the elastic hose 14. The telescopic outer tube 13 is fixedly connected to the water pipe end 11. The water pipe end 11 has an inlet 12. A flow-blocking plate 15 is provided on the side of the inlet 12 near the telescopic outer tube 13. A third slider 25 is fixedly connected to the flow-blocking plate 15. A sliding cavity 16 is provided on the water pipe end 11. The third slider 25 is slidably connected to the sliding cavity 16. An elastic reset component is provided in the sliding cavity 16. The diameter of the flow-blocking plate 15 is larger than the diameter of the inlet 12.
[0023] It is worth noting that the inner circular surface of the liquid inlet 12 is provided with an internal thread, which is used to connect with the faucet thread. The telescopic outer tube 13 is made of cloth sleeve, and the elastic hose 14 is made of elastic material.
[0024] The elastic reset assembly includes a flow limiting plate 20 and a first slider 22. The first slider 22 is disposed on the side of the flow limiting plate 20 near the third slider 25. The flow limiting plate 20 is fixedly connected to one side wall of the sliding cavity 16. The first slider 22 is slidably connected to the sliding cavity 16. A flow limiting hole 21 is opened on the flow limiting plate 20. A second slider 23 is fixedly connected to one end face of the third slider 25 near the flow limiting plate 20.
[0025] The second slider 23 is slidably connected to the sliding cavity 16. The second slider 23 and the first slider 22 form a second cavity 17. The flow-limiting plate 20 and the sliding cavity 16 form a third cavity 18. The second cavity 17 is filled with inert gas, and the third cavity 18 is filled with damping oil. A limiting plate 24 is fixedly connected to one end of the sliding cavity 16 near the flow-limiting plate 15. The third slider 25 is slidably connected to the limiting plate 24. The outer diameter of the third slider 25 is equal to the inner diameter of the limiting plate 24. The diameter of the second slider 23 is equal to the diameter of the sliding cavity 16. A sealing ring is fixedly provided on the outer circular surface of the second slider 23.
[0026] When this solution is used for irrigation, firstly, the inlet 12 is threaded onto the faucet and the faucet is turned on. When water comes out of the faucet, the water pressure in the inlet 12 increases. The water in the inlet 12 pushes the flow baffle 15 to slide away from the end of the water pipe 11. The flow baffle 15 drives the second slider 23 to slide towards the limiting plate 24 through the third slider 25.
[0027] Then, the increased volume in the second cavity 17 leads to a decrease in air pressure. The second cavity 17 generates negative pressure on the first slider 22, causing the first slider 22 to slide towards the second slider 23. The damping oil in the third cavity 18 enters between the flow limiting plate 20 and the first slider 22 through the flow limiting hole 21 until the pressure on both sides of the first slider 22 is balanced.
[0028] Finally, when the tap is turned off, the baffle plate 15 loses the thrust of the water pressure in the inlet 12, so the pressure on both sides of the first slider 22 is unbalanced, the elastic potential energy in the second cavity 17 and the third cavity 18 is released, and the first slider 22 and the second slider 23 slide towards the flow limiting plate 20 until the pressure on both sides of the first slider 22 and the second slider 23 is balanced. When the pressure on both sides of the first slider 22 and the second slider 23 is balanced, the baffle plate 15 blocks the inlet 12.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A retractable and expandable anti-backflow garden water pipe, characterized in that: The device includes a water pipe end (11), a telescopic outer tube (13), and an elastic hose (14). The telescopic outer tube (13) is fixedly sleeved on the outer circular surface of the elastic hose (14). The telescopic outer tube (13) is fixedly connected to the water pipe end (11). The water pipe end (11) has an inlet (12). A flow baffle (15) is provided on the side of the inlet (12) near the telescopic outer tube (13). A third slider (25) is fixedly connected to the flow baffle (15). A sliding cavity (16) is provided on the water pipe end (11). The third slider (25) is slidably connected to the sliding cavity (16). An elastic reset component is provided inside the sliding cavity (16).
2. The expandable and retractable anti-backflow garden water pipe according to claim 1, characterized in that: The elastic reset assembly includes a flow limiting plate (20) and a first slider (22). The first slider (22) is disposed on the side of the flow limiting plate (20) near the third slider (25). The flow limiting plate (20) is fixedly connected to one side wall of the sliding cavity (16). The first slider (22) is slidably connected to the sliding cavity (16). A flow limiting hole (21) is opened on the flow limiting plate (20). A second slider (23) is fixedly connected to one end face of the third slider (25) near the flow limiting plate (20).
3. The expandable and retractable anti-backflow garden water pipe according to claim 2, characterized in that: The second slider (23) is slidably connected to the sliding cavity (16), and the second slider (23) and the first slider (22) form a second cavity (17). The flow limiting plate (20) and the sliding cavity (16) form a third cavity (18). The second cavity (17) is filled with inert gas, and the third cavity (18) is filled with damping oil.
4. The expandable and retractable anti-backflow garden water pipe according to claim 2, characterized in that: The sliding cavity (16) is fixedly connected to a limiting plate (24) at one end near the flow baffle (15), and the third slider (25) is slidably connected to the limiting plate (24).
5. The expandable and retractable anti-backflow garden water pipe according to claim 2, characterized in that: The diameter of the second slider (23) is equal to the diameter of the sliding cavity (16), and a sealing ring is fixedly provided on the outer circular surface of the second slider (23).
6. The expandable and retractable anti-backflow garden water pipe according to claim 1, characterized in that: The diameter of the flow baffle (15) is larger than the diameter of the liquid inlet (12).