Automatic control drip irrigation device for plant cultivation

Abstract

The utility model belongs to the technical field of garden plant cultivation, and particularly relates to a plant cultivation automatic control drip irrigation device which comprises a water storage barrel, a sealing cover and a stirring mechanism. A liquid inlet pipe and a water inlet pipe are installed at the top end of the sealing cover, the sealing cover is in sealing connection with the water storage barrel, and the side wall of the water storage barrel communicates with a water outlet pipe; the water outlet end of the water outlet pipe is communicated with a water pump, the water pump is communicated with a main water pipe, and the main water pipe is communicated with a group of branch pipes; the conical temperature and humidity sensor is inserted into the ground, when the temperature and humidity sensor senses that the ground is too dry, the water pump and the electromagnetic valve can be started, water in the water storage barrel can enter the branch pipe at the moment, and finally the water is dripped to the planting land through the dripping holes in the branch pipe, so that the humidity of the planting land is increased; when the temperature and humidity sensors sense that the humidity reaches a proper value, the electromagnetic valves on the corresponding branch pipes can be closed, so that water does not enter the planting land of the area any more, and the effect of saving water is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of garden plant planting, in particular to an automatic control drip irrigation device for plant cultivation. Background Art

[0002] Watering is a vital task in the process of planting garden plants. In order to ensure the healthy growth of plants, we must carefully arrange and manage the irrigation system. This includes choosing a suitable water source, such as groundwater, river water or rainwater collection system, and adjusting the frequency and amount of watering according to the specific needs of the plants and weather conditions. In addition, modern technology also widely uses drip irrigation, sprinkler irrigation and other water-saving technologies to improve the utilization efficiency of water resources and reduce waste.

[0003] However, the above technology often has the following defects: when implementing drip irrigation operations in a large area of ​​plant planting area, due to the wide planting range, there are differences in soil moisture in different places, which makes it difficult to accurately control the irrigation amount in different areas during the drip irrigation process, which may cause waste of water resources due to excessive irrigation or plant drought due to lack of irrigation. For this reason, the utility model provides an automatic control drip irrigation device for plant cultivation. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve the technical problems raised in the background technology.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes an automatic controlled drip irrigation device for plant cultivation, comprising a water storage barrel, a sealing cover and a stirring mechanism; a liquid inlet pipe and a water inlet pipe are installed on the top of the sealing cover, the sealing cover is sealed and connected to the water storage barrel, and the side wall of the water storage barrel is connected to a water outlet pipe; the water outlet end of the outlet pipe is connected to a water pump, the water pump is connected to a main water pipe, the main water pipe is connected to a group of branch pipes, and the water inlet end of the branch pipe is provided with a solenoid valve; the side wall of the branch pipe is fixedly connected to a temperature and humidity sensor, and the temperature and humidity sensor is conical.

[0006] The bottom surface of the water storage barrel is fixedly connected to a protective shell, a motor is arranged in the protective shell, a rotating shaft is rotated on the top surface of the protective shell, the motor is used to drive the rotating shaft to rotate, and a plurality of driving blades are fixedly connected to the rotating shaft.

[0007] The top surface of the protective shell is fixedly connected with a connecting ring, the inner wall of the connecting ring is sealed and rotatably connected to the rotating shaft, a pair of arc-shaped sliding grooves are provided in the connecting ring, a slide is sealed and slidably connected in the sliding groove, a hollow groove connected to the sliding groove is provided in the connecting ring, the interior of the rotating shaft is a hollow structure, a pair of connecting grooves connected to the hollow groove are provided on the side wall of the rotating shaft, a plurality of through holes connected to the interior of the rotating shaft are provided on the side wall of the rotating shaft, and a driving mechanism for driving the slide to move is provided in the connecting ring.

[0008] The driving mechanism includes a pair of first magnetic blocks fixed on the side wall of the rotating shaft, the slide is made of a magnetic material that is magnetically attracted to the first magnetic blocks, an elastic rope is fixedly connected between the side of the slide away from the first magnetic block and the slide groove, and the side wall of the connecting ring is provided with an air intake pipe connected to the slide groove, and the air intake pipe seals and passes through the side wall of the water storage barrel.

[0009] The bottom surface of the inner wall of the rotating shaft is fixedly connected with a connecting rod and a first contact point, the connecting rod is slidably connected with a floating ring, the bottom surface of the floating ring is fixedly connected with a second contact point, and a water outlet groove is provided on the side wall of the rotating shaft near the first contact point.

[0010] A hollow diversion box is fixedly connected to the bottom surface of the sealing cover. The bottom surface of the diversion box is provided with multiple groups of circular holes. The discharge end of the liquid inlet pipe is communicated with the diversion box.

[0011] A movable groove is provided in the diversion box, a sealing plate for sealing the circular hole is slidably connected in the movable groove, a circular groove corresponding to the circular hole is provided on the sealing plate, a fixing rod is fixedly connected to the side wall of the rotating shaft, and an end of the fixing rod away from the rotating shaft is fixedly connected to a second magnetic block that is magnetically attracted to the sealing plate, and a second spring is fixedly connected between the side of the sealing plate close to the second magnetic block and the inner wall of the movable groove.

[0012] The inner wall of the diversion box is sealed and slidably connected with a pressure plate, a third spring is fixedly connected between the top surface of the pressure plate and the inner wall of the diversion box, the top surface of the pressure plate is fixedly connected with a round rod, the round rod is slidably connected to the top surface of the sealing cover, and a liquid inlet one-way valve is provided in the liquid inlet pipe.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model inserts a conical temperature and humidity sensor into the ground. When the temperature and humidity sensor senses that the ground is too dry, it will start the water pump and the solenoid valve. At this time, the water in the water storage barrel will enter the branch pipe, and finally drip from the drip holes on the branch pipe to the planting ground, so that the humidity of the planting ground increases. When the temperature and humidity sensor senses that the humidity has reached an appropriate value, it can close the solenoid valve on the corresponding branch pipe, so that water no longer enters the planting ground in this area, thereby achieving the effect of saving water.

[0015] 2. When water and nutrient solution are added to the water storage barrel, the motor can be started to drive the rotating shaft to rotate. At this time, the driving blades will stir and mix the water and nutrient solution in the water storage barrel to enhance the effect of irrigating the planting area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of the drip irrigation device in the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the water storage barrel in the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the water storage barrel, diversion box, protective shell and rotating shaft in the utility model;

[0020] Figure 4 yes Figure 3 A magnified view of point A;

[0021] Figure 5 yes Figure 3 Enlarged view of point B;

[0022] In the figure: 1. Water storage tank; 2. Sealing cover; 3. Water inlet pipe; 4. Liquid inlet pipe; 5. Water outlet pipe; 6. Water pump; 7. Main water pipe; 8. Branch pipe; 9. Temperature and humidity sensor; 10. Protective shell; 11. Rotating shaft; 12. Driving blade; 13. Connecting ring; 14. Slide groove; 15. Slide plate; 16. First magnetic block; 17. Connecting groove; 18. Connecting rod; 19. Floating ring; 20. First contact; 21. Second contact; 22. Air inlet pipe; 23. Diverter box; 24. Round hole; 25. Sealing plate; 26. Round groove; 27. Fixing rod; 28. Second magnetic block; 29. ​​Pressing plate; 30. Round rod. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] Example 1: Figures 1 to 5As shown, an automatic controlled drip irrigation device for plant cultivation according to an embodiment of the present invention comprises a water storage barrel 1, a sealing cover 2 and a stirring mechanism; a liquid inlet pipe 4 and a water inlet pipe 3 are installed on the top of the sealing cover, the sealing cover 2 is sealedly connected to the water storage barrel 1, and a water outlet pipe 5 is connected to the side wall of the water storage barrel 1; the water outlet end of the water outlet pipe 5 is connected to a water pump 6, the water pump 6 is connected to a main water pipe 7, the main water pipe 7 is connected to a group of branch pipes 8, and the water inlet end of the branch pipe 8 is provided with a solenoid valve; a temperature and humidity sensor 9 is fixedly connected to the side wall of the branch pipe 8, and the temperature and humidity sensor 9 is conical;

[0025] The sizes of the main water pipe 7, branch pipe 8 and water storage barrel 1 in the present application can be determined according to actual conditions. By distributing the branch pipe 8 on the planting ground where plants are planted, and inserting the conical temperature and humidity sensor 9 into the ground, water and nutrient solution are injected into the water storage barrel 1 from the water inlet pipe 3 and the liquid inlet pipe 4. When the temperature and humidity sensor 9 senses that the ground is too dry, the water pump 6 and the solenoid valve will be started. At this time, the water in the water storage barrel 1 will enter the main water pipe 7, and then enter the branch pipe 8, and finally drip from the drip holes on the branch pipe 8 to the planting ground, so that the humidity of the planting ground increases. When the temperature and humidity sensor 9 senses that the humidity reaches an appropriate value, the solenoid valve on the corresponding branch pipe 8 can be closed to prevent water from entering the planting ground in this area. When the values ​​sensed by all temperature and humidity sensors 9 meet the requirements, the water pump 6 will be shut down. The above mechanism can achieve the effect of automatic drip irrigation of the plant planting ground. At the same time, the automatic opening and closing of the branch pipe 8 can be controlled according to the humidity of the planting ground to achieve the effect of saving water.

[0026] The bottom surface of the water storage barrel 1 is fixedly connected to a protective shell 10, and a motor is provided in the protective shell 10. The top surface of the protective shell 10 is rotatably provided with a rotating shaft 11, and the motor is used to drive the rotating shaft 11 to rotate. A plurality of driving blades 12 are fixedly connected to the rotating shaft 11; when water and nutrient solution are added to the water storage barrel 1, the motor can be started to drive the rotating shaft 11 to rotate. At this time, the driving blades 12 will stir and mix the water and nutrient solution in the water storage barrel 1 to enhance the effect of irrigating the planting area.

[0027] The top surface of the protective shell 10 is fixedly connected with a connecting ring 13, and the inner wall of the connecting ring 13 is sealed and rotatably connected to the rotating shaft 11. A pair of arc-shaped slide grooves 14 are provided in the connecting ring 13, and a slide plate 15 is sealed and slidably connected in the slide groove 14. A hollow groove connected to the slide groove 14 is provided in the connecting ring 13. The interior of the rotating shaft 11 is a hollow structure, and the side wall of the rotating shaft 11 is provided with a pair of connecting grooves 17 connected to the hollow groove. The side wall of the rotating shaft 11 is provided with multiple groups of through holes connected to its interior, and a driving mechanism for driving the slide plate 15 to move is provided in the connecting ring 13; the water in the water storage barrel 1 will enter the rotating shaft 11 from the through hole, and then enter the slide groove 14 along the connecting groove 17. The present application drives the slide plate 15 to move back and forth through the driving mechanism, so that the slide plate 15 pushes the water in the slide groove 14, and the water will eventually be sprayed out from the through hole. In this process, the water in the water storage barrel 1 will produce fluctuations, thereby improving the mixing efficiency between the water and the nutrient solution.

[0028] The driving mechanism includes a pair of first magnetic blocks 16 fixed to the side walls of the rotating shaft 11, and the slide 15 is made of a magnetic material that is magnetically attracted to the first magnetic block 16. An elastic rope is fixedly connected between the side of the slide 15 away from the first magnetic block 16 and the chute 14, and the side wall of the connecting ring 13 is provided with an air intake pipe 22 connected to the chute 14, and the air intake pipe 22 seals and passes through the side wall of the water storage barrel 1; in the present application, when the rotating shaft 11 rotates, the first magnetic block 16 will intermittently pass through the slide 15, so that the slide 15 is repeatedly attracted by the first magnetic block 16 and moves back and forth, thereby continuously pushing the water in the chute 14, allowing the water in the water storage barrel 1 to continue to fluctuate. With the help of the above-mentioned mechanism, the repeated movement of the slide 15 can be completed without the help of other power mechanisms.

[0029] The bottom surface of the inner wall of the rotating shaft 11 is fixedly connected with a connecting rod 18 and a first contact 20, and a floating ring 19 is slidably connected to the connecting rod 18. The bottom surface of the floating ring 19 is fixedly connected with a second contact 21, and a water outlet groove is provided on the side wall of the rotating shaft 11 near the first contact 20; when the water level in the water storage barrel 1 in the present application is lowered, the water in the connecting rod 18 will also be lowered, and then when the water level in the water storage barrel 1 drops to the lowest point, the water in the connecting rod 18 will be discharged from the water outlet groove, and the second contact 21 on the floating ring 19 will contact the first contact 20. At this time, the alarm information can be transmitted to the staff's mobile phone in the form of an APP to remind the staff to add water to the water storage barrel 1 in time.

[0030] A hollow diverter box 23 is fixedly connected to the bottom surface of the sealing cover 2, and a plurality of circular holes 24 are provided on the bottom surface of the diverter box 23. The discharge end of the liquid inlet pipe 4 is connected to the diverter box 23. In this application, the nutrient solution can be injected into the diverter box 23 through the liquid inlet pipe 4, and then flowed evenly into the water storage barrel 1 from the circular holes 24 to mix with the water in the water storage barrel, thereby improving the uniformity of the mixing of the nutrient solution and water.

[0031] The diverter box 23 is provided with a movable groove, and a sealing plate 25 that seals the circular hole 24 is slidably connected in the movable groove, and a circular groove 26 corresponding to the circular hole 24 is provided on the sealing plate 25. The side wall of the rotating shaft 11 is fixedly connected to a fixing rod 27, and the fixing rod 27 is fixedly connected to a second magnetic block 28 that is magnetically attracted to the sealing plate 25 at one end away from the rotating shaft 11. A second spring is fixedly connected between the side of the sealing plate 25 close to the second magnetic block 28 and the inner wall of the movable groove; the present application can use the sealing plate 25 to seal the circular hole 24, and then inject the nutrient solution into the diverter box 23 for storage. When the nutrient solution needs to be used, the rotating shaft 11 can be driven to rotate, so that the second magnetic block 28 is away from the sealing plate 25. At this time, the second spring will push the sealing plate 25 so that the circular hole 24 is aligned with the circular groove 26. At this time, the nutrient solution will fall from the circular hole 24 into the water storage barrel 1. The nutrient solution can be stored through the above mechanism for use at any time.

[0032] The inner wall of the diverter box 23 is sealed and slidably connected with a pressure plate 29, and a third spring is fixedly connected between the top surface of the pressure plate 29 and the inner wall of the diverter box 23. The top surface of the pressure plate 29 is fixedly connected with a round rod 30, and the round rod 30 is slidably connected to the top surface of the sealing cover 2. A liquid inlet one-way valve is provided in the liquid inlet pipe 4; when the circular hole 24 is aligned with the circular groove 26, the pressure plate 29 will squeeze the nutrient solution in the diverter box 23, so that the nutrient solution is pressurized and injected and released into the water through the circular hole 24, causing it to diffuse more widely in the water body, thereby improving the mixing efficiency of the nutrient solution and water. When the pressure plate 29 needs to be reset, the round rod 30 can be pulled upward so that the round rod 30 drives the pressure plate 29 to reset.

[0033] Working principle: The sizes of the main water pipe 7, branch pipe 8 and water storage barrel 1 in this application can be determined according to actual conditions. By distributing the branch pipe 8 on the planting ground where the plants are planted, and inserting the conical temperature and humidity sensor 9 into the ground, water and nutrient solution are injected into the water storage barrel 1 from the water inlet pipe 3 and the liquid inlet pipe 4. When the temperature and humidity sensor 9 senses that the ground is too dry, the water pump 6 and the solenoid valve will be started. At this time, the water in the water storage barrel 1 will enter the main water pipe 7, and then enter the branch pipe 8. Finally, it will drip from the drip holes on the branch pipe 8 to the planting ground, so that the humidity of the planting ground increases, and the temperature and humidity sensor 9 senses that the humidity has reached an appropriate value. When the temperature and humidity sensors 9 sense the water, the water pump 6 will be turned off. The above mechanism can achieve the effect of automatic drip irrigation of the plant planting area. At the same time, the automatic opening and closing of the branch pipe 8 can be controlled according to the humidity of the planting area to achieve the effect of saving water. When water and nutrient solution are added to the water storage barrel 1, the motor can be started to drive the rotating shaft 11 to rotate. At this time, the driving blades 12 will stir and mix the water and nutrient solution in the water storage barrel 1 to enhance the effect of irrigating the planting area.

[0034] The water in the water storage barrel 1 will enter the rotating shaft 11 from the through hole, and then enter the chute 14 along the connecting groove 17. The present application drives the slide plate 15 to move back and forth through the driving mechanism, so that the slide plate 15 pushes the water in the chute 14, and the water will eventually be ejected from the through hole. During this process, the water in the water storage barrel 1 will produce fluctuations, thereby improving the mixing efficiency between the water and the nutrient solution; in the present application, when the rotating shaft 11 rotates, the first magnetic block 16 will intermittently pass through the slide plate 15, so that the slide plate 15 is repeatedly attracted by the first magnetic block 16 and moves back and forth, thereby continuously pushing the water in the chute 14. , so that the water in the water storage barrel 1 continues to fluctuate. With the help of the above-mentioned mechanism, the repeated movement of the slide plate 15 can be completed by the rotation of the rotating shaft 11, without the need for other power mechanisms; when the water level in the water storage barrel 1 in the present application is reduced, the water in the connecting rod 18 will also be reduced. Then, when the water level in the water storage barrel 1 drops to the lowest point, the water in the connecting rod 18 will be discharged from the water outlet trough. At this time, the second contact 21 on the floating ring 19 will contact the first contact 20. At this time, the alarm information can be transmitted to the staff's mobile phone in the form of an APP to remind the staff to add water to the water storage barrel 1 in time;

[0035] The present application can inject the nutrient solution into the diversion box 23 through the liquid inlet pipe 4, and then evenly flow it into the water storage barrel 1 from the circular hole 24 to mix with the water in the water storage, thereby improving the uniformity of the mixing of the nutrient solution and water; the present application can seal the circular hole 24 with the help of the sealing plate 25, and then inject the nutrient solution into the diversion box 23 for storage. When the nutrient solution needs to be used, the rotating shaft 11 can be driven to rotate to move the second magnetic block 28 away from the sealing plate 25. At this time, the second spring will push the sealing plate 25, so that the circular hole 24 and the circular groove 26 are aligned. When the circular hole 24 and the circular groove 26 are aligned, the nutrient solution will fall from the circular hole 24 into the water storage barrel 1. The nutrient solution can be stored through the above mechanism for use at any time. When the circular hole 24 is aligned with the circular groove 26, the pressure plate 29 will squeeze the nutrient solution in the diversion box 23, so that the nutrient solution is pressurized and injected and released into the water through the circular hole 24, causing it to diffuse more widely in the water body, thereby improving the mixing efficiency of the nutrient solution and water. When the pressure plate 29 needs to be reset, the round rod 30 can be pulled upward so that the round rod 30 drives the pressure plate 29 to reset.

[0036] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A plant cultivation automatic control drip irrigation device, comprising a water storage barrel (1), a sealing cover (2) and a stirring mechanism; characterized in that: A liquid inlet pipe (4) and a water inlet pipe (3) are installed at the top of the sealing cover, the sealing cover (2) is sealedly connected to the water storage barrel (1), and the side wall of the water storage barrel (1) is connected to a water outlet pipe (5); the water outlet end of the water outlet pipe (5) is connected to a water pump (6), the water pump (6) is connected to a main water pipe (7), the main water pipe (7) is connected to a group of branch pipes (8), and the water inlet end of the branch pipe (8) is provided with a solenoid valve; the side wall of the branch pipe (8) is fixedly connected to a temperature and humidity sensor (9), and the temperature and humidity sensor (9) is conical.

2. The automatic control drip irrigation device for plant cultivation according to claim 1, characterized in that: The bottom surface of the water storage barrel (1) is fixedly connected to a protective shell (10), a motor is arranged in the protective shell (10), a rotating shaft (11) is rotatably provided on the top surface of the protective shell (10), the motor is used to drive the rotating shaft (11) to rotate, and a plurality of driving blades (12) are fixedly connected to the rotating shaft (11).

3. The automatic controlled drip irrigation device for plant cultivation according to claim 2, characterized in that: The top surface of the protective shell (10) is fixedly connected with a connecting ring (13), the inner wall of the connecting ring (13) is sealed and rotatably connected to the rotating shaft (11), a pair of arc-shaped sliding grooves (14) are provided in the connecting ring (13), a slide plate (15) is sealed and slidably connected in the sliding groove (14), a hollow groove connected to the sliding groove (14) is provided in the connecting ring (13), the interior of the rotating shaft (11) is a hollow structure, a pair of connecting grooves (17) connected to the hollow groove are provided on the side wall of the rotating shaft (11), a plurality of through holes connected to the interior of the rotating shaft (11) are provided on the side wall of the rotating shaft (11), and a driving mechanism for driving the slide plate (15) to move is provided in the connecting ring (13).

4. The automatic control drip irrigation device for plant cultivation according to claim 3, characterized in that: The driving mechanism comprises a pair of first magnetic blocks (16) fixed to the side wall of the rotating shaft (11); the slide plate (15) is made of a magnetic material that is magnetically attracted to the first magnetic blocks (16); an elastic rope is fixedly connected between the side of the slide plate (15) away from the first magnetic block (16) and the slide groove (14); the side wall of the connecting ring (13) is provided with an air intake pipe (22) connected to the slide groove (14); and the air intake pipe (22) is sealed and passes through the side wall of the water storage barrel (1).

5. The automatic controlled drip irrigation device for plant cultivation according to claim 4, characterized in that: The bottom surface of the inner wall of the rotating shaft (11) is fixedly connected to a connecting rod (18) and a first contact (20); a floating ring (19) is slidably connected to the connecting rod (18); the bottom surface of the floating ring (19) is fixedly connected to a second contact (21); and a water outlet groove is provided on the side wall of the rotating shaft (11) near the first contact (20).

6. The automatic controlled drip irrigation device for plant cultivation according to claim 2, characterized in that: A hollow diversion box (23) is fixedly connected to the bottom surface of the sealing cover (2), and a plurality of groups of circular holes (24) are provided on the bottom surface of the diversion box (23). The discharge end of the liquid inlet pipe (4) is in communication with the diversion box (23).

7. The automatic controlled drip irrigation device for plant cultivation according to claim 6, characterized in that: A movable groove is provided in the diversion box (23), a sealing plate (25) for sealing the circular hole (24) is slidably connected in the movable groove, a circular groove (26) corresponding to the circular hole (24) is provided on the sealing plate (25), a fixed rod (27) is fixedly connected to the side wall of the rotating shaft (11), an end of the fixed rod (27) away from the rotating shaft (11) is fixedly connected to a second magnetic block (28) magnetically attracted to the sealing plate (25), and a second spring is fixedly connected between the side of the sealing plate (25) close to the second magnetic block (28) and the inner wall of the movable groove.

8. The automatic control drip irrigation device for plant cultivation according to claim 7, characterized in that: The inner wall of the diversion box (23) is sealed and slidably connected to a pressure plate (29); a third spring is fixedly connected between the top surface of the pressure plate (29) and the inner wall of the diversion box (23); a round rod (30) is fixedly connected to the top surface of the pressure plate (29); the round rod (30) is slidably connected to the top surface of the sealing cover (2); and a liquid inlet one-way valve is provided in the liquid inlet pipe (4).

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