Water-driven self-pressure-relief buried telescopic sprinkling irrigation device

By using a water-driven, self-relief, underground telescopic sprinkler system, the direction of water pressure is changed by a sliding seat and spring assembly, enabling safe retraction of the sprinkler head and efficient irrigation. This solves the problems of high failure rate and insufficient retraction force of existing equipment, reducing the risk of equipment damage and engineering costs.

CN224178828UActive Publication Date: 2026-05-01HEBEI AGRICULTURE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI AGRICULTURE TECHNOLOGY CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing underground telescopic sprinkler irrigation equipment suffers from several problems, including a high failure rate due to its multi-section structure, insufficient spring return force causing the sprinkler head to be easily damaged when exposed on the soil surface, and the need for specific valves for drainage in dual-pipeline systems.

Method used

Design a water-driven, self-relief, underground telescopic sprinkler irrigation device. The device uses a sliding seat to separate the inner cavity and change the direction of water pressure. It utilizes a spring and a self-relief assembly to extend and retract the sprinkler head. It combines water source spraying for irrigation and eliminates the need for a return water pipe valve.

Benefits of technology

Ensure that the sprinkler head retracts safely in the soil, reduce the risk of mechanical damage, improve irrigation efficiency and equipment reliability, reduce system failures, and lower project costs.

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Abstract

The utility model discloses a water-driven self-pressure-relief buried telescopic sprinkling irrigation device, and belongs to the technical field of agricultural irrigation. The water-driven self-pressure-relief buried telescopic sprinkling irrigation device comprises an outer pipe assembly, an inner pipe is arranged in the outer pipe assembly in a sliding mode, the upper end and the lower end of the inner pipe are fixedly provided with a spray head and a sliding base respectively, the sliding base divides the interior of the outer pipe assembly into a first inner cavity and a second inner cavity, and the spray head extends to the exterior of the outer pipe assembly; a self-pressure-relief assembly is arranged in the sliding seat in a sliding mode, and a plurality of connecting holes matched with the self-pressure-relief assembly are formed in the sliding seat. According to the technical scheme, the buried telescopic sprinkling irrigation device can be driven up and down through water resources, and meanwhile, pressure self-relief can be achieved.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural irrigation technology, specifically a water-driven, self-relief, underground telescopic sprinkler irrigation device. Background Technology

[0002] Agricultural irrigation mainly refers to irrigation operations carried out in agricultural cultivated areas. Agricultural irrigation methods can generally be divided into traditional surface irrigation, ordinary sprinkler irrigation, and micro-irrigation. In ancient China, agricultural irrigation relied on rainfall and rivers, and farming was mainly concentrated in areas with abundant rainfall and well-developed river networks; farmers in these areas often carried out agricultural production according to the solar terms.

[0003] Currently used underground telescopic sprinkler systems generally have the following problems:

[0004] 1. For ease of installation, a multi-section structure is adopted, with three, four, and five sections available. Each additional section increases the number of moving parts, leading to a higher failure rate. This increases the likelihood of aging of seals, leaks, and sand / gravel jamming in the moving parts, thus affecting irrigation efficiency.

[0005] 2. Existing underground telescopic integrated sprinkler irrigation equipment generally uses spring tension and rebound to retract the telescopic pipe underground. Due to the limitation that the spring retraction cannot exceed the pushing force, the spring force or tension is limited to within 2 kg. The closer the spring is to its initial state, the smaller the force. In soil with increased friction, it cannot be guaranteed that the underground telescopic product will retract into place, and the sprinkler head may still be exposed above the soil, making it easy to be damaged by mechanical equipment during cultivation.

[0006] 3. Existing sprinkler irrigation equipment generally uses a dual-pipeline system. The irrigation water supply pipe can discharge water from the pipe through the sprinkler head, and the drainage of the retracting pipe requires a specific drainage valve.

[0007] Therefore, it is necessary to design a water-driven, self-relief, underground telescopic sprinkler irrigation device. Utility Model Content

[0008] The purpose of this invention is to provide a water-driven, self-relief, underground telescopic sprinkler irrigation device to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A water-driven, self-relief, underground telescopic sprinkler irrigation device includes an outer pipe assembly, an inner pipe slidably disposed within the outer pipe assembly, a nozzle and a sliding seat fixedly installed at the upper and lower ends of the inner pipe, the sliding seat dividing the interior of the outer pipe assembly into an inner cavity one and an inner cavity two, the nozzle extending to the outside of the outer pipe assembly, a self-relief component slidably disposed within the sliding seat, and the sliding seat having multiple connection holes that mate with the self-relief component.

[0011] As a further embodiment of this utility model: the outer tube assembly includes an outer tube, with an upper water inlet seat and a lower water inlet seat fixedly installed at the upper and lower ends of the outer tube, respectively. The inner tube is slidably connected to the upper water inlet seat, and the sliding seat is slidably connected to the inside of the outer tube, dividing the inside of the outer tube into an inner cavity one and an inner cavity two. The upper water inlet seat and the lower water inlet seat are respectively connected to the inner cavity one and the inner cavity two.

[0012] As a further embodiment of this utility model: the self-relieving assembly includes a spring mounting base fixedly disposed inside the lower side of the sliding seat and a spring mounting slide disposed inside the upper side of the sliding seat, a spring being provided between the spring mounting base and the spring mounting slide, and the spring mounting slide engaging with the connecting hole.

[0013] As a further embodiment of this utility model: an upper cover is fixedly installed on the upper water inlet seat, the upper cover is slidably connected to the inner tube, a water inlet bracket seat that cooperates with the sliding seat is fixedly installed inside the upper water inlet seat, a fixed slide seat is fixedly installed inside the water inlet bracket seat, and the fixed slide seat is slidably connected to the inner tube.

[0014] In summary, the beneficial effects of this utility model are as follows: by setting up inner cavity one and inner cavity two at the sliding seat partition, and by outputting water sources in inner cavity one and inner cavity two respectively, the direction of water pressure inside is changed, thereby realizing the extension and retraction of the nozzle, which can overcome the friction of the soil, ensure that it retracts to a safe position, and prevent it from being damaged by other machinery during cultivation.

[0015] By setting up sprinklers, the internal water source can be used for irrigation in the form of sprayed water droplets, which can achieve the effect of large flow and long range. Under the premise that the raindrops do not damage the crops at any stage, the irrigation time is reduced, the efficiency is improved, and the labor and material consumption is reduced.

[0016] By installing a self-relief component, drainage is ensured in the return water pipe, protecting the expansion pipe from high pressure damage. This component can replace the return water pipe control valve, reducing project costs and system failure rate. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a water-driven, self-relief, underground telescopic sprinkler irrigation device.

[0018] Figure 2A structural diagram showing the spring after it has slid a certain distance using a slide block.

[0019] Figure 3 This is an external structural diagram of a water-driven, self-relief, underground telescopic sprinkler irrigation device.

[0020] In the diagram: 1. Outer tube; 2. Inner tube; 3. Top cover; 4. Upper water inlet seat; 5. Nozzle; 6. Nozzle mounting seat; 7. Lower water inlet seat; 8. Sliding seat; 9. Sealing ring; 10. Spring mounting seat; 13. Spring mounting slide; 11. Spring; 14. Water inlet bracket; 15. Inner cavity one; 16. Fixed slide; 17. Inner cavity two; 18. Connecting hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] Please see Figure 1-3 ,like Figure 1 As shown, a water-driven, self-relief, underground telescopic sprinkler irrigation device includes an outer pipe assembly. An inner pipe 2 is slidably disposed within the outer pipe assembly. A nozzle 5 and a sliding seat 8 are fixedly installed at the upper and lower ends of the inner pipe 2, respectively. Preferably, the nozzle 5 is fixedly connected to the inner pipe via a nozzle fixing seat 6. The sliding seat 8 divides the interior of the outer pipe assembly into an inner cavity 15 and an inner cavity 17. The outer pipe assembly includes an outer pipe 1, with an upper water inlet seat 4 and a lower water inlet seat 7 fixedly installed at the upper and lower ends of the outer pipe 1, respectively. The inner pipe 2 is slidably connected to the upper water inlet seat 4. The sliding seat 8 is slidably connected to the inside of the outer tube 1, dividing the inside of the outer tube into an inner cavity 15 and an inner cavity 2 17. The upper water inlet seat 4 and the lower water inlet seat 7 are respectively connected to the inner cavity 15 and the inner cavity 2 17. The nozzle 5 extends to the outside of the outer tube assembly. An upper cover 3 is fixedly installed on the upper water inlet seat 4. The upper cover 3 is slidably connected to the inner tube 2. A water inlet bracket 14 that cooperates with the sliding seat 8 is fixedly installed inside the upper water inlet seat 4. A fixed slide 16 is fixedly installed inside the water inlet bracket 14. The fixed slide 16 is slidably connected to the inner tube 2.

[0024] A self-relieving pressure assembly is slidably disposed inside the sliding seat 8. The self-relieving pressure assembly includes a spring mounting base 10 fixedly disposed inside the lower side of the sliding seat 8 and a spring mounting slide 13 slidably disposed inside the upper side of the sliding seat 8. A spring 11 is disposed between the spring mounting base 10 and the spring mounting slide 13. The sliding seat 8 has a plurality of connecting holes 18 that cooperate with the self-relieving pressure assembly. The spring mounting slide 13 cooperates with the connecting holes 18.

[0025] Preferably, sealing rings 9 are added to each connection point to ensure the internal sealing effect.

[0026] Working principle:

[0027] When in use, the device is buried in the ground and water is supplied through the lower water inlet seat 7. Since the nozzle 5 is not open at this time, the inner cavity 17 is sealed. As the water pressure increases, it can push the inner pipe 2 and the nozzle 3 out from below the ground. If there is residual water in the inner cavity 15 from the last use, the water pressure will increase during the squeezing process and will come into contact with the spring mounting slide 13 through the connecting hole 18. When the internal pressure is greater than the tension of the spring 11, the spring mounting slide 13 will slide downward, creating a gap between it and the slide seat 8. Since the water pressure in the inner cavity 15 is greater than the water pressure in the inner cavity 17, the water will only flow into the inner cavity 17 from one side. When the pressure decreases, the elastic force of the spring 11 is greater than the pressure applied to the pressure ring by the inner cavity 15, and the gap disappears.

[0028] After nozzle 3 extends, turn on the nozzle and begin spraying and irrigating the surrounding farmland.

[0029] After use, the lower water inlet seat 7 stops supplying water, while the upper water inlet seat 4 begins supplying water. The inner cavity 15 is sealed, and the internal water pressure increases, causing the sliding seat 8 to slide downwards, thus pressing the nozzle 3 back into the ground. When the water pressure inside the inner cavity 15 exceeds the tension of the spring 11, the spring mounting slide 13 will slide downwards, creating a gap between it and the sliding seat 8, thus releasing pressure.

[0030] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

[0031] Furthermore, the technical solutions of this application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A water-driven, self-relief, underground telescopic sprinkler irrigation device, characterized in that, The device includes an outer tube assembly, an inner tube (2) which is slidably disposed inside the outer tube assembly. A nozzle (5) and a sliding seat (8) are fixedly installed at the upper and lower ends of the inner tube (2), respectively. The sliding seat (8) divides the interior of the outer tube assembly into an inner cavity one (15) and an inner cavity two (17). The nozzle (5) extends to the outside of the outer tube assembly. A self-pressure relief assembly is slidably disposed inside the sliding seat (8). The sliding seat (8) has multiple connection holes (18) that cooperate with the self-pressure relief assembly.

2. The water-driven self-relief buried telescopic sprinkler irrigation device according to claim 1, characterized in that, The outer tube assembly includes an outer tube (1), with an upper water inlet seat (4) and a lower water inlet seat (7) fixedly installed at the upper and lower ends of the outer tube (1), the inner tube (2) being slidably connected to the upper water inlet seat (4), and the sliding seat (8) being slidably connected to the inside of the outer tube (1), dividing the inside of the outer tube (1) into an inner cavity one (15) and an inner cavity two (17), with the upper water inlet seat (4) and the lower water inlet seat (7) communicating with the inner cavity one (15) and the inner cavity two (17) respectively.

3. A water driven self pressure relief, buried, telescopic, sprinkling device according to claim 2, characterized in that, The self-relieving pressure assembly includes a spring mounting base (10) fixedly disposed inside the lower side of the sliding seat (8) and a spring mounting slide (13) slidably disposed inside the upper side of the sliding seat (8). A spring (11) is provided between the spring mounting base (10) and the spring mounting slide (13). The spring mounting slide (13) cooperates with the connecting hole (18).

4. A water-driven, self-relief, underground telescopic sprinkler irrigation device according to claim 3, characterized in that, The upper water inlet seat (4) is fixedly installed with an upper cover (3), which is slidably connected to the inner tube (2). The upper water inlet seat (4) is fixedly installed with a water inlet bracket (14) that cooperates with the sliding seat (8). The water inlet bracket (14) is fixedly installed with a fixed slide (16), which is slidably connected to the inner tube (2).

Citation Information

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