Timing automatic irrigation device using pipeline flow as power source

Abstract

The invention relates to the technical field of pipeline power generation, and discloses a timed automatic irrigation device using pipeline flow as a power source, the timed automatic irrigation device comprises a water inlet pipe and a timed irrigation device, one end of the water inlet pipe is connected with a pretreatment pipe, and the pretreatment pipe is internally provided with a pretreatment assembly, a connecting pipe and a water hammer eliminating assembly; one side of the connecting pipe is communicated and connected with a side branch pipe, the side branch pipe is connected with a direct-current hydroelectric generator, and in addition, a lithium battery electrically connected with the timing irrigation device and the generator at the same time is further arranged. The direct-current hydroelectric generator is matched with the lithium battery to supply power to the timing irrigation device. A conventional dry battery and a solar system are replaced, pollution of the dry battery is reduced, all-weather use can be achieved, limitation of raining or weak light environments is avoided, impact damage of water flow to the impeller can be reduced through cooperation of the connecting pipe and the water hammer eliminating assembly, damage of pressure change in a pipeline to the pipeline can be reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the field of pipeline power generation, and in particular to a timed automatic irrigation device which uses pipeline flow as a power source. Background Art

[0002] A timed irrigation device is a device for automatically controlling irrigation, which can water plants according to a preset time interval and water volume. It generally includes a timer, a control valve, a nozzle, and a water supply pipe. In the prior art, the timed irrigation device is generally powered by disposable dry batteries or by installing solar panels on the timed irrigation device. However, the use of dry batteries for power supply requires regular replacement of dry batteries, and discarded dry batteries are very likely to pollute the environment. The use of solar panels for power supply is affected by the weather, and it is inconvenient to use in rainy days or weak light environments.

[0003] Based on this, the applicant proposed a timed automatic irrigation device that uses pipeline flow as a power source, by installing a small DC hydroelectric generator in the water supply pipeline and then using a battery to power the existing timed irrigation device. No dry cell batteries or solar panels are needed. Summary of the invention

[0004] In order to solve the technical problems raised in the background technology, the present invention provides a timed automatic irrigation device using pipeline flow as a power source.

[0005] The present invention is implemented by the following technical solution: a timed automatic irrigation device using pipeline flow as a power source, comprising a water inlet pipe and a timed irrigation device, one end of the water inlet pipe is connected to:

[0006] A pretreatment pipe, the pretreatment pipe is connected to the water inlet pipe, and a pretreatment component is detachably arranged in the pretreatment pipe, and the pretreatment component includes a filter layer and an ion exchange layer;

[0007] A connecting pipe, the connecting pipe comprising an upper connecting pipe and a lower connecting pipe, one end of the upper connecting pipe is connected to the pretreatment pipe, and one end of the lower connecting pipe is connected to the timed irrigation device;

[0008] A water hammer elimination component, wherein the water hammer elimination component is provided with two groups, respectively connected to the upper connecting pipe and the lower connecting pipe;

[0009] A side branch pipe is connected between the upper connecting pipe and the lower connecting pipe, a DC hydraulic generator is connected to the side branch pipe, a lithium battery is electrically connected to one side of the DC hydraulic generator, and the lithium battery is electrically connected to the timing irrigation device.

[0010] Through the above technical solution, the irrigation water first enters the pretreatment pipe through the water inlet pipe, and is filtered to remove calcium and magnesium ions in the water to prevent soil compaction. Then it passes through the DC hydroelectric generator. The electricity generated by the DC hydroelectric generator is temporarily stored in the lithium battery, which can be connected to the timing irrigation device for power supply. Avoid using dry batteries. At the same time, the water hammer elimination component can reduce the impact of the water hammer effect generated when the timing irrigation component is opened or closed on the impeller of the DC hydroelectric generator, extending its service life.

[0011] As a further improvement of the above solution, the pre-processing component further includes:

[0012] An outer cylinder, wherein the outer wall of the outer cylinder is provided with threads, the outer cylinder is threadedly connected to the pretreatment tube, and a plurality of through holes are provided on the side wall of the outer cylinder;

[0013] A cover plate is fixedly connected to one end of the outer cylinder.

[0014] As a further improvement of the above solution, an elastic base is provided at the inner bottom of the pretreatment tube, and when the pretreatment assembly is installed, the bottoms of the outer cylinder, the filter layer and the ion exchange layer fit the elastic base.

[0015] Through the above technical solution, firstly, the pretreatment assembly and the pretreatment pipe are threadedly connected, which is convenient for disassembly and assembly, and secondly, the bottom of the outer cylinder, the filter layer and the ion exchange layer are fitted with the elastic base, ensuring that the water flow can pass through the filter layer and the ion exchange layer in sequence, ensuring the filtering and deionization effects.

[0016] As a further improvement of the above solution, the filter layer and the ion exchange layer are tubular structures, the filter layer is sleeved on the outside of the ion exchange layer, and the outer tube is sleeved on the outside of the filter layer.

[0017] As a further improvement of the above solution, a clamping block is fixedly connected to the upper end of the filter layer, a fixing groove is provided at the inner bottom of the cover plate, and the clamping block is clamped in the fixing groove.

[0018] Through the above technical solution, it is convenient to remove the filter layer, and it is convenient to clean the filter layer and the ion exchange layer separately and reuse them.

[0019] As a further improvement of the above solution, the water hammer elimination component includes:

[0020] A fixing plate, the fixing plate is fixedly connected to the port of the connecting pipe by screws, a through hole is provided in the middle of the fixing plate, and a thread is provided on the side wall of the through hole;

[0021] An adjusting knob, the adjusting knob passes through the fixing plate and is threadedly connected to the fixing plate, and a through hole is provided in the middle of the adjusting knob;

[0022] A piston plate, the piston plate is movably arranged in the connecting tube, one side of the piston plate is fixedly connected to a piston rod, and the other end of the piston rod passes through the adjusting knob and then extends out of the connecting tube;

[0023] A spring is sleeved on the outside of the piston rod, and one end of the spring is in contact with the piston plate, and the other end is in contact with the adjusting knob.

[0024] Through the above technical solution, when the pressure in the pipeline changes, on the one hand, the piston plate can be directly pushed to move and the spring can be compressed. The excess energy is absorbed by the deformation of the spring, and the pressure fluctuation is reduced, thereby effectively preventing pipeline rupture, valve damage and other equipment failures.

[0025] As a further improvement of the above solution, the side branch pipe connected to the DC hydroelectric generator is defined as a No. 1 side branch pipe, and a No. 1 solenoid valve is also installed on the No. 1 side branch pipe.

[0026] As a further improvement of the above solution, a guide plate is fixedly provided on the inner wall of the No. 1 side branch pipe near the water inlet of the DC hydroelectric generator.

[0027] Through the above technical solution, the guide plate guides the water flow so that the water flow contacts the impeller of the DC hydroelectric generator, thereby driving the impeller of the DC hydroelectric generator to rotate, thereby generating electricity.

[0028] As a further improvement of the above solution, a No. 2 side branch pipe is connected between the upper connecting pipe and the lower connecting pipe, and a No. 2 solenoid valve is installed on the No. 2 side branch pipe.

[0029] As a further improvement of the above solution, one end of the timed irrigation device is also connected to a water outlet pipe, and the water outlet pipe is connected to a plurality of nozzles.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention uses a DC hydroelectric generator and a lithium battery to power the timed irrigation device, replacing conventional dry batteries and solar energy systems, reducing the pollution of dry batteries, and can be used all day without being restricted by rain or weak light environments.

[0032] 2. The present invention can prevent the water flow from impacting the generator impeller when the timed irrigation device is opened and closed through the cooperation of the upper and lower connecting pipes and the water hammer elimination assembly, thereby avoiding the water hammer effect from damaging the impeller and the pipeline and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a cross-sectional view of the pretreatment tube and the pretreatment assembly of the present invention;

[0035] Figure 3 An exploded view of the pretreatment component of the present invention;

[0036] Figure 4 This is a schematic diagram of the connection relationship between the connecting pipe and the side branch pipe of the present invention;

[0037] Figure 5 It is a cross-sectional view of the water hammer elimination component of the present invention.

[0038] Explanation of main symbols: 1. Water inlet pipe; 2. Pretreatment pipe; 21. Elastic base; 3. Pretreatment assembly; 31. Outer cylinder; 32. Cover plate; 33. Filter layer; 34. Block; 35. Ion exchange layer; 36. Fixing groove; 4. Connecting pipe; 41. Upper connecting pipe; 42. Lower connecting pipe; 5. Water hammer elimination assembly; 51. Fixing plate; 52. Adjustment knob; 53. Piston plate; 54. Piston rod; 55. Spring; 6. Side branch pipe; 61. No. 1 side branch pipe; 62. No. 2 side branch pipe; 7. No. 1 solenoid valve; 8. DC hydroelectric generator; 9. Guide plate; 10. No. 2 solenoid valve; 11. Timed irrigation device; 12. Lithium battery; 13. Water outlet pipe; 14. Nozzle. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0040] Please combine Figure 1-Figure 3 The timed automatic irrigation device using pipeline flow as a power source of this embodiment includes a timed irrigation device 11. The timed irrigation device 11 is a prior art. To reduce costs, the prior art device can be used for improvement. The prior art timed irrigation device 11 generally includes a timer and a control valve. The opening and closing of the control valve is controlled by the timer to achieve the purpose of connecting or closing the waterway. The timed irrigation device 11 is also connected to a water outlet pipe 13, and the water outlet pipe 13 is connected to a plurality of nozzles 14.

[0041] In addition, the present embodiment also includes a water inlet pipe 1. For example, when a family uses the device, the water inlet pipe 1 needs to be connected to a tap water pipe. In some areas with hard water, tap water contains more minerals such as calcium and magnesium. Long-term use of this tap water for watering flowers may cause soil compaction. Flowers such as azaleas and camellias are sensitive to water quality. Calcium, magnesium and other ions in tap water may cause harm to them. Therefore, in order to alleviate this situation, a pretreatment pipe 2 is connected to one end of the water inlet pipe 1, and a pretreatment component 3 is arranged in the pretreatment pipe 2 for pretreating the water quality to remove calcium and magnesium ions therein, and at the same time remove other particulate impurities that may be contained in the water.

[0042] The pretreatment assembly 3 includes an outer cylinder 31, and an outer thread is provided on the upper side wall of the outer cylinder 31, and a corresponding inner thread is provided on the inner side wall of the upper end of the pretreatment tube 2, and the outer cylinder 31 and the pretreatment tube 2 are connected by threads. A cover plate 32 is fixedly connected to the upper end of the outer cylinder 31. When installed, the outer cylinder 31 is located inside the pretreatment tube 2 as a whole, and the cover plate 32 is located outside the pretreatment tube 2, and an elastic sealing ring can be installed between the cover plate 32 and the pretreatment tube 2 to prevent water from seeping out. The outer cylinder 31 can also be disassembled and assembled by rotating the cover plate 32. A through hole is provided on the side wall of the outer cylinder 31, and water can enter the inner part of the outer cylinder 31 through the through hole. A filter layer 33 and an ion exchange layer 35 are also arranged inside the outer cylinder 31.

[0043] The filter layer 33 and the ion exchange layer 35 are both tubular structures, and the filter layer 33 is sleeved on the outside of the ion exchange layer 35. The water flow can pass through the filter layer 33 and the ion exchange layer 35. The impurities that may be contained in the water will be blocked and adsorbed on the filter layer 33 when passing through the filter layer 33. The inside of the ion exchange layer 35 is a fine granular resin, and the ions in the resin are exchanged with the calcium and magnesium ions in the water. Thereby reducing the calcium and magnesium ions in the water. Reduce the hardness of the water to avoid soil compaction, etc.

[0044] In addition, an elastic base 21 is provided at the inner bottom of the pretreatment tube 2. When the pretreatment assembly 3 is installed, the lower ends of the outer cylinder 31, the filter layer 33 and the ion exchange layer 35 are tightly fitted with the elastic base 21, ensuring that the water flow passes through the outer cylinder 31, the filter layer 33 and the ion exchange layer 35 in sequence.

[0045] Since the filtering capacity and ion adsorption capacity of the filtering layer 33 and the ion exchange layer 35 will decrease after being used for a period of time, they need to be replaced and cleaned regularly. At this time, the pretreatment component 3 can be directly rotated and taken out through the cover plate 32.

[0046] In order to facilitate the cleaning and restoration of the filter layer 33 and the ion exchange layer 35, two blocks 34 are fixedly connected to the top of the filter layer 33, and a fixing groove 36 corresponding to the block 34 is provided on the inner bottom of the cover plate 32. During installation, the block 34 and the fixing groove 36 are positioned correspondingly, and the filter layer 33 can be installed after the block 34 is inserted into the fixing groove 36. Conversely, the filter layer 33 can be pulled out after rotating the filter layer 33 to complete the separation. After the separation is completed, the filter layer 33 can be reused after cleaning. The ion exchange layer 35 needs to use a high concentration of regeneration liquid (such as sodium chloride solution) to restore the exchange capacity of the resin.

[0047] Please combine Figure 4 and Figure 5 In addition, a connecting pipe 4 and a side branch pipe 6 are provided, and the connecting pipe 4 is divided into an upper connecting pipe 41 and a lower connecting pipe 42. One end of the upper connecting pipe 41 is connected to the bottom of the pretreatment pipe 2, and the lower connecting pipe 42 is connected to the above-mentioned timing watering device 11.

[0048] There are also two side branch pipes 6, one end of each of the two side branch pipes 6 is connected to the upper connecting pipe 41, and the other end is connected to the lower connecting pipe 42. The two side branch pipes 6 are respectively defined as side branch pipe No. 1 61 and side branch pipe No. 2 62. A solenoid valve No. 1 7 and a DC hydroelectric generator 8 are installed on the side branch pipe No. 1 61. The DC hydroelectric generator 8 is an existing device, and a 5V DC hydroelectric generator 8 can be used here. In addition, a guide plate 9 is fixedly installed on the inner wall of the side branch pipe No. 1 61 near the water inlet of the DC hydroelectric generator 8. A solenoid valve No. 2 10 is installed on the side branch pipe No. 2 62.

[0049] In addition, a lithium battery 12 (including a charging and discharging circuit) is provided, and the lithium battery 12 is electrically connected to the DC hydroelectric generator 8 and the timing irrigation device 11. That is, the electric energy generated by the DC hydroelectric generator 8 is stored in the lithium battery 12, and the lithium battery 12 is used to power the timing irrigation device 11, thereby replacing conventional disposable dry batteries and solar energy systems.

[0050] The timed irrigation device 11 needs to be opened and closed regularly when in use. In order to reduce the impact of the water flow in the pipeline on the DC hydroelectric generator 8 when the timed irrigation device 11 is frequently opened and closed, and reduce the harm of the water hammer effect, a water hammer elimination component 5 is also provided at the upper connecting pipe 41 and the lower connecting pipe 42.

[0051] Specifically, the water hammer elimination assembly 5 includes a fixing plate 51 and an adjusting knob 52. First, the fixing plate 51 is fixedly connected to the ports of the upper connecting pipe 41 and the lower connecting pipe 42. A through hole is provided in the middle of the fixing plate 51, and an internal thread is provided on the side wall of the through hole. In addition, the adjusting knob 52 passes through the through hole, and an external thread is provided on the adjusting knob 52. That is, the adjusting knob 52 and the fixing plate 51 are threadedly connected.

[0052] A through hole is also provided in the middle of the adjustment knob 52, and the water hammer elimination assembly 5 further includes a piston plate 53, a piston rod 54 and a spring 55. First, the piston plate 53 is movably installed inside the connecting pipe 4. One end of the piston plate 53 is fixedly connected to the piston rod 54, and the other end of the piston rod 54 passes through the adjustment knob 52 and extends out of the connecting pipe 4. A spring 55 is also sleeved on the piston rod 54, and one end of the spring 55 is in contact with the piston plate 53, and the other end is in contact with the adjustment knob 52.

[0053] The implementation process and principle of a timed automatic irrigation device using pipeline flow as a power source in the embodiment of the present application are as follows:

[0054] (I): The time is set by the timer on the timing watering device 11. After the preset time, the No. 1 solenoid valve 7 is opened and the No. 2 solenoid valve 10 is closed. At the same time, the valve in the timing watering device 11 is opened, and the pipeline is connected.

[0055] After passing through the water inlet pipe 1, the water flows into the pretreatment pipe 2, and passes through the outer cylinder 31, the filter layer 33 and the ion exchange layer 35 in sequence. The filter layer 33 can remove impurities that may be contained in the water. It also prevents possible impurities from impacting the generator impeller. When hard water containing calcium, magnesium and other ions passes through the ion exchange resin, the ions adsorbed by the functional groups on the resin will exchange with the calcium and magnesium ions in the water. Through this exchange, the calcium and magnesium ions in the water are adsorbed by the resin, and the sodium ions on the resin are released into the water, thereby reducing the hardness of the water. Avoid soil compaction and soil alkalinization caused by calcium and magnesium ions.

[0056] (ii) Since there is water in the upper connecting pipe 41, when the timing irrigation device 11 is turned on, the water flows downward, and the piston plate 53 can move upward under the action of the spring 55, so as to avoid the situation where the pressure in the upper connecting pipe 41 becomes small and the upper connecting pipe 41 is damaged by the external atmospheric pressure.

[0057] After the water flow stabilizes, it flows from top to bottom, passes through the pretreatment pipe 2 and enters the upper connecting pipe 41. At this time, the water flow will directly contact the water hammer elimination component 5 in the upper connecting pipe 41, and the water flow directly impacts the piston plate 53. The piston plate 53 can be pushed to move and the spring 55 can be compressed. The movement of the piston plate 53 is resisted by the elastic force of the spring 55, thereby buffering the impact force of the water flow. This elastic deformation process can effectively reduce the peak pressure of the water flow, convert the high-energy impact into the elastic potential energy of the spring 55, and prevent the water flow from directly impacting the impeller of the DC hydroelectric generator 8.

[0058] (III): Water flows from the upper connecting pipe 41 into the No. 1 side branch pipe 61. A guide plate 9 is fixedly arranged on the inner wall near the water inlet of the DC hydroelectric generator 8. The guide plate 9 guides the direction of the water flow, reduces the turbulence of the water flow, and makes the water flow impact the impeller of the DC hydroelectric generator 8, so that the impeller rotates and generates electrical energy. The electrical energy is then stored in the lithium battery 12.

[0059] Most of the existing timed irrigation devices 11 are powered by disposable dry batteries or solar panels. Here, a lithium battery 12 is connected to the existing timed irrigation device 11 to replace the dry battery. The electric energy generated by the DC hydroelectric generator 8 can be stored in the lithium battery 12, and the lithium battery 12 supplies power to the timed irrigation device 11 to start the timed irrigation device 11. The lithium battery 12 is used to power the timed irrigation device 11. It replaces conventional dry batteries and solar energy systems, reduces the pollution of dry batteries, and can also be used all day long without being restricted by rain or weak light environments.

[0060] (IV) After the irrigation is completed, if the valve in the timed irrigation device 11 is directly closed, there will be water (not flowing) in the pipeline between the DC hydraulic generator 8 and the timed irrigation device 11, and the water flow above the generator has inertia and will continue to enter the No. 1 side branch pipe 61 through the upper connecting pipe 41, thereby causing an impact on the generator impeller, causing a large pressure at the generator, and even damaging the impeller and the pipeline.

[0061] Therefore, in order to avoid the above situation, when it is necessary to stop watering, the second solenoid valve 10 is first controlled to open and the first solenoid valve 7 is closed, and the water can flow through the second side branch pipe 62. At this time, the water in the first side branch pipe 61 is slowly discharged. Therefore, it can be avoided that when the timing watering device 11 is opened and closed, the water continues to flow under the action of inertia and impacts the generator.

[0062] (V): As described above, when the timed irrigation device 11 is closed, the water flow will continue to flow due to inertia. At this time, the pressure in the lower connecting pipe 42 increases, and the piston plate 53 in the water hammer elimination assembly 5 can move upward to compress the spring 55, thereby converting the high-energy impact into the elastic potential energy of the spring 55, thereby preventing the water flow from directly impacting the lower connecting pipe 42 and causing damage to the pipe.

[0063] In addition, the adjustment knob 52 in the water hammer elimination assembly 5 can be rotated. For example, after rotating the adjustment knob 52, one end of the knob moves into the interior of the connecting pipe 4, and the spring 55 is compressed. The opening pressure of the piston plate 53 can be changed to adapt to different working pressure ranges and water hammer strengths of different pipeline systems.

[0064] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A timed automatic irrigation device using pipeline flow as a power source, comprising a water inlet pipe and a timed irrigation device, characterized in that: One end of the water inlet pipe is connected with: A pretreatment pipe, the pretreatment pipe is connected to the water inlet pipe, and a pretreatment component is detachably arranged in the pretreatment pipe, and the pretreatment component includes a filter layer and an ion exchange layer; A connecting pipe, the connecting pipe comprising an upper connecting pipe and a lower connecting pipe, one end of the upper connecting pipe is connected to the pretreatment pipe, and one end of the lower connecting pipe is connected to the timed irrigation device; A water hammer elimination component, wherein the water hammer elimination component is provided with two groups, respectively connected to the upper connecting pipe and the lower connecting pipe; A side branch pipe is connected between the upper connecting pipe and the lower connecting pipe, a DC hydraulic generator is connected to the side branch pipe, a lithium battery is electrically connected to one side of the DC hydraulic generator, and the lithium battery is electrically connected to the timing irrigation device.

2. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 1, characterized in that: The pre-processing component also includes: An outer cylinder, wherein the outer wall of the outer cylinder is provided with threads, the outer cylinder is threadedly connected to the pretreatment tube, and a plurality of through holes are provided on the side wall of the outer cylinder; A cover plate is fixedly connected to one end of the outer cylinder.

3. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 2, characterized in that: The filter layer and the ion exchange layer are in a tubular structure. The filter layer is sleeved on the outside of the ion exchange layer, and the outer tube is sleeved on the outside of the filter layer.

4. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 3, characterized in that: A clamping block is fixedly connected to the upper end of the filter layer, a fixing groove is provided at the inner bottom of the cover plate, and the clamping block is clamped in the fixing groove.

5. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 3, characterized in that: The inner bottom of the pretreatment tube is provided with an elastic base. When the pretreatment assembly is installed, the bottoms of the outer cylinder, the filter layer and the ion exchange layer are in contact with the elastic base.

6. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 1, characterized in that: The water hammer elimination assembly comprises: A fixing plate, the fixing plate is fixedly connected to the port of the connecting pipe by screws, a through hole is provided in the middle of the fixing plate, and a thread is provided on the side wall of the through hole; An adjusting knob, the adjusting knob passes through the fixing plate and is threadedly connected to the fixing plate, and a through hole is provided in the middle of the adjusting knob; A piston plate, the piston plate is movably arranged in the connecting tube, one side of the piston plate is fixedly connected to a piston rod, and the other end of the piston rod passes through the adjusting knob and then extends out of the connecting tube; A spring is sleeved on the outside of the piston rod, and one end of the spring is in contact with the piston plate, and the other end is in contact with the adjusting knob.

7. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 1, characterized in that: The side branch pipe connected to the DC hydroelectric generator is defined as a No. 1 side branch pipe, and a No. 1 solenoid valve is also installed on the No. 1 side branch pipe.

8. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 1, characterized in that: A guide plate is fixedly arranged on the inner wall of the No. 1 side branch pipe near the water inlet of the DC hydroelectric generator.

9. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 1, characterized in that: A No. 2 side branch pipe is also connected between the upper connecting pipe and the lower connecting pipe, and a No. 2 solenoid valve is installed on the No. 2 side branch pipe.

10. The timed automatic irrigation device using pipeline flow as a power source as claimed in claim 1, characterized in that: One end of the timing irrigation device is also connected to a water outlet pipe, and the water outlet pipe is connected to a plurality of sprinkler heads.

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