Intermittent sprinkling irrigation device based on water demand

Abstract

The invention relates to the technical field of intermittent sprinkling irrigation, in particular to a water demand-based intermittent sprinkling irrigation device which comprises a base, a conveying pipe is mounted at the upper end of the base, one end of the conveying pipe penetrates through the base, extends to the lower end and is communicated with a pump controlled by a humidity sensor, and the other end of the conveying pipe is connected with a sprinkling irrigation mechanism. One side of the sprinkling irrigation mechanism communicates with a water drainage pipe, a stop valve is arranged in the water drainage pipe, and a first reciprocating screw rod rotates on one side of the conveying pipe. During irrigation in the morning, after a water source enters the sprinkling irrigation mechanism, part of the water source is discharged outwards through the water drainage pipe, and then the sprinkling irrigation amount of the sprinkling irrigation mechanism is reduced; the device drains water through the drainage pipe to reduce the spray irrigation amount, prevents water accumulation at the roots of the crops and long-time moisture of leaves, reduces the occurrence probability of rotten roots and fungal diseases, reduces the water spraying amount to prevent the soil moisture content from exceeding a suitable threshold value of the crops, and avoids oxygen deficit or rotten roots of the roots.

Description

TECHNICAL FIELD

[0001] The present application relates to the intermittent sprinkler irrigation technical field, specifically to an intermittent sprinkler irrigation device based on water requirement. BACKGROUND

[0002] In the fields of agricultural production, garden maintenance, ecological restoration, irrigation is the core link to ensure plant growth, and its technical development has always been around the two core goals of "efficient water use and precise supply". The traditional irrigation method has the problems of serious water resource waste and mismatch between supply and actual demand of plants. The intermittent sprinkler irrigation device based on water requirement is gradually developed and popularized in the background of solving the pain points of traditional irrigation, responding to water-saving agricultural policy and adapting to the upgrading of modern agricultural technology. When the traditional device is used, it relies on manual experience control and cannot adjust the irrigation amount according to the actual water requirement of crops at different times, which leads to problems such as over-irrigation, root rot, water shortage and yield reduction, thereby inhibiting crop growth and even causing yield reduction. SUMMARY

[0003] When the device is used for irrigation in the early morning, part of the water source will be discharged outward through the drain pipe after the water source enters the sprinkler irrigation mechanism, thereby reducing the sprinkling amount of the sprinkler irrigation mechanism, so that the dew on the surface of the crop in the early morning itself provides a certain amount of water. The device reduces the sprinkling amount by discharging water through the drain pipe to prevent water accumulation at the root of the crop and long-term moisture on the leaf, reduce the probability of root rot and fungal disease, and reduce the water spraying amount to prevent the soil water content from exceeding the suitable threshold of the crop and avoid root hypoxia or root rot.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an intermittent sprinkler irrigation device based on water requirement, comprising a base, a conveying pipe is installed on the upper end of the base, one end of the conveying pipe extends through the base and is connected to a pump controlled by a humidity sensor at the lower end, the other end of the conveying pipe is connected to a sprinkler irrigation mechanism, a drain pipe is connected to one side of the sprinkler irrigation mechanism, and a stop valve is arranged in the drain pipe; A first reciprocating screw rod is rotatably arranged on one side of the conveying pipe, a sliding block vertically moves along the first reciprocating screw rod on the outer side of the first reciprocating screw rod, a second rack is connected to one end of the sliding block, two groups of guide grooves are rotatably arranged on the upper end of the sprinkler irrigation mechanism, a second gear is connected to one end of each of the two groups of guide grooves, and the two groups of second gears are engaged with the second rack. A sealing groove is installed on one side of the drain pipe, a rotating shaft B is rotatably arranged in the sealing groove, guide pipes are installed on both sides of the sealing groove, second reciprocating screw rods are rotatably arranged in the guide pipes, and pistons slide on the outer sides of the second reciprocating screw rods.

[0005] Preferably, a plurality of fixing rods are installed on the lower end of the base, and a fixing frame is installed on the outer side of the sprinkler irrigation mechanism.

[0006] Preferably, the lower end of the base is provided with a speed reducer motor, and one end of the first reciprocating screw rod extends through the base and is connected with the output end of the speed reducer motor.

[0007] Preferably, the first reciprocating screw rod is connected with a sliding block ball nut pair, the upper surface of the base is fixedly connected with a guide rod, and the other end of the guide rod extends through the sliding block and reaches the upper end.

[0008] Preferably, one end of the sliding block is fixedly connected with a support rod, one side of the support rod is provided with a first rack, one side of the first rack is engaged with a first gear, and the first rack and the first gear are located in the same plane.

[0009] Preferably, one end of the first gear close to the drain pipe is fixedly connected with a valve rod, and the other end of the valve rod extends through the drain pipe and reaches the inside and is connected with a stop valve.

[0010] Preferably, a plurality of groups of blades are installed outside the rotating shaft B, and one end of the two groups of second reciprocating screw rods extends through the sealing groove and reaches the inside and is connected with the two ends of the rotating shaft B.

[0011] Preferably, the piston is connected with a second reciprocating screw rod ball nut pair, one end of the guide pipe is fixedly connected with a connecting pipe, and the other end of the connecting pipe is connected with a flow guide groove.

[0012] Preferably, one end of the support rod is fixedly connected with a second rack, one end of the second gear is fixedly connected with a rotating shaft A, the upper end of the sprinkler mechanism is provided with a fixed seat, and the rotating shaft A extends through the fixed seat and is connected with the flow guide groove.

[0013] Compared with the prior art, the beneficial effects of the present application are: When irrigating in the early morning, part of the water source will be discharged outward through the drain pipe after entering the inside of the sprinkler mechanism, thereby reducing the sprinkling amount of the sprinkler mechanism, so that the dew on the surface of the crops itself provides a certain amount of water, the device reduces the sprinkling amount by discharging water through the drain pipe, prevents the root of the crops from being waterlogged and the leaf from being wet for a long time, reduces the probability of root rot and fungal disease, and reduces the water content of the soil to prevent the root system from being oxygen-deficient or rotting.

[0014] The air curtain limits the water source, prevents the water source from being atomized and floating upward, and at the same time, the air curtain generates a certain downward pressure on the water source, so that the water source is quickly in contact with the ground, thereby preventing the irrigation water from being atomized and quickly evaporated due to high temperature at noon, limiting the water source by the air curtain to prevent atomization from floating upward, and at the same time, applying a downward pressure to make the water source quickly fall to the ground, greatly reducing the evaporation loss of water in the air, ensuring that more water can be transported to the crop roots, and at the same time, the limiting and downward effect of the air curtain on the water source can prevent the atomized water flow from being taken away by the hot wind at noon or evaporated in advance, so that the irrigation water can accurately act on the crop planting area, ensuring that the crops can effectively absorb water at noon, and relieving the influence of high temperature and drought.

[0015] When irrigating at dusk, the air flow will shuttle between the crops, thereby shaking the leaves of the crops, preventing water droplets from falling on the surface of the crop leaves, thereby preventing the water from freezing in the surface layer of the crops or the soil gap due to the sudden drop in temperature after dusk, and freezing the root system or seedlings, and at the same time, the air flow can accelerate the air circulation in the field, on the one hand, it can take away the excess moisture around the leaves, further reducing water residue, and on the other hand, it can supplement fresh air to the crops, assisting the respiration of the crops at dusk, and indirectly improving the growth state. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is one of the overall structure schematic diagrams of the application; Figure 2 It is the second overall structure schematic diagram of the application; Figure 3 It is the third overall structure schematic diagram of the application; Figure 4 It is a cross-sectional view of the internal structure of the guide pipe of the application; Figure 5 It is a partial structure diagram of the application; Figure 6 It is a first partial structure cross-sectional view of the application; Figure 7 It is a second partial structure cross-sectional view of the application.

[0017] In the figure: 1, base; 2, conveying pipe; 3, sprinkling irrigation mechanism; 4, drain pipe; 5, first gear; 6, speed reducer motor; 7, first reciprocating screw rod; 8, sliding block; 9, guide rod; 10, support rod; 11, first rack; 12, second rack; 13, second gear; 14, rotating shaft A; 15, fixed seat; 16, flow guide groove; 17, sealing groove; 18, blade; 19, rotating shaft B; 20, second reciprocating screw rod; 21, piston; 22, guide pipe; 23, connecting pipe. DETAILED DESCRIPTION

[0018] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0019] With reference to Figures 1-7 The present application provides an intermittent sprinkling device based on water demand, comprising a base 1, a conveying pipe 2 is installed on the upper end of the base 1, one end of the conveying pipe 2 extends through the base 1 to the lower end and is communicated with a pump controlled by a humidity sensor, the other end of the conveying pipe 2 is connected with a sprinkling mechanism 3, a drainage pipe 4 is communicated with one side of the sprinkling mechanism 3, and a stop valve is arranged in the drainage pipe 4; A first reciprocating lead screw 7 is rotatably arranged on one side of the conveying pipe 2, a sliding block 8 vertically moves along the first reciprocating lead screw 7 and slides on the outer side of the first reciprocating lead screw 7, a second rack 12 is connected to one end of the sliding block 8, two groups of flow guide grooves 16 are rotatably arranged on the upper end of the sprinkling mechanism 3, and each of the two groups of flow guide grooves 16 is connected with a second gear 13, and the two groups of second gears 13 are engaged with the second rack 12; A sealing groove 17 is installed on one side of the drainage pipe 4, a rotating shaft B 19 is rotatably arranged in the sealing groove 17, guide pipes 22 are installed on both sides of the sealing groove 17, and second reciprocating lead screws 20 are rotatably arranged in the guide pipes 22.

[0020] In an optional embodiment, a plurality of fixing rods are installed on the lower end of the base 1, and a fixing frame is installed on the outer side of the sprinkling mechanism 3. Before using the device, the device is fixed by inserting the plurality of fixing rods on the lower end of the base 1 into the ground. When using the device, the humidity sensor is inserted into the ground by the staff to detect the humidity of the ground. When the humidity of the ground is low, the humidity sensor converts the physical quantity of humidity into an electrical signal and transmits it to the pump, so that the pump is automatically turned on when the humidity of the ground is low. After the pump is turned on, the pump will deliver the water source into the conveying pipe 2. At this time, the conveying pipe 2 will spray the water source outward through the sprinkling mechanism 3.

[0021] In an optional embodiment, a reduction motor 6 is installed on the lower end of the base 1, and one end of the first reciprocating lead screw 7 extends through the base 1 to the lower end and is connected with the output end of the reduction motor 6. When using the device, the reduction motor 6 is started synchronously, and after the reduction motor 6 is started, the reduction motor 6 will drive the first reciprocating lead screw 7 to rotate.

[0022] In an optional embodiment, the first reciprocating screw rod 7 is connected with the sliding block 8 through a ball screw nut pair, the upper surface of the base 1 is fixedly connected with a guide rod 9, and the other end of the guide rod 9 extends to the upper end through the sliding block 8. As described above, when the first reciprocating screw rod 7 rotates, the sliding block 8 is driven to rotate synchronously. At this time, the sliding block 8 is limited by the guide rod 9, and then moves reciprocatingly outside the first reciprocating screw rod 7 through the limitation of the guide rod 9.

[0023] In an optional embodiment, one end of the sliding block 8 is fixedly connected with a support rod 10, one side of the support rod 10 is provided with a first rack 11, one side of the first rack 11 is engaged with a first gear 5, and the first rack 11 and the first gear 5 are located in the same plane. When the sliding block 8 moves, the support rod 10 moves synchronously, and when the support rod 10 moves, the first rack 11 rises synchronously. When the first rack 11 gradually rises, the first rack 11 drives the first gear 5 to rotate.

[0024] In an optional embodiment, one end of the first gear 5 close to the drain pipe 4 is fixedly connected with a valve rod, the other end of the valve rod extends to the inside of the drain pipe 4 and is connected with a stop valve. As described above, when the first gear 5 gradually rotates, the valve rod rotates synchronously. When the valve rod rotates, the stop valve inside the drain pipe 4 is gradually closed. When the sliding block 8 is located in the lower half of the first reciprocating screw rod 7, it represents that it is morning. At this time, because the surface of the crops contains dew in the morning, and because the initial position of the stop valve inside the drain pipe 4 is open, when the water source enters the inside of the sprinkling irrigation mechanism 3 in the morning, part of the water source is discharged outside through the drain pipe 4, thereby reducing the sprinkling irrigation amount of the sprinkling irrigation mechanism 3. Thus, the dew on the surface of the crops itself provides a certain amount of water, and the device reduces the sprinkling irrigation amount by discharging water through the drain pipe 4, prevents the accumulation of water in the roots of crops and the long-term dampness of branches and leaves, reduces the probability of root rot and fungal diseases, and reduces the water content of the soil to prevent the root system from lacking oxygen or rotting.

[0025] In an optional embodiment, a plurality of groups of blades 18 are installed outside the rotating shaft B19, and one end of each of the two groups of second reciprocating screw rods 20 extends to the inside through the sealing groove 17 and is connected with the two ends of the rotating shaft B19. After the pump mechanism delivers the water source into the conveying pipe 2, the flow of the water flow drives the plurality of groups of blades 18 to rotate, and the rotating blades 18 drive the rotating shaft B19 to rotate synchronously.

[0026] In an optional embodiment, the piston 21 is connected with the second reciprocating screw rod 20 through a ball nut pair, one end of the guide pipe 22 is fixedly connected with the connecting pipe 23, the other end of the connecting pipe 23 is connected with the flow guide groove 16, when the rotating shaft B 19 rotates, it will synchronously drive the two groups of second reciprocating screw rods 20 to rotate, the guide grooves are arranged in the interiors of the two groups of guide pipes 22, and the piston 21 is limited through the sliding connection with the guide grooves, when the two groups of second reciprocating screw rods 20 rotate, the piston 21 is driven to reciprocate in the interior of the guide pipe 22, when the guide pipe 22 reciprocates, it will continuously transport the gas in the interior of the connecting pipe 23, after the gas enters the interior of the connecting pipe 23, the gas will enter the interiors of the two groups of flow guide grooves 16 through the connecting pipe 23, and after the gas enters the interiors of the flow guide grooves 16, it will be discharged outward through the flow guide grooves 16.

[0027] In an optional embodiment, one end of the support rod 10 is fixedly connected with the second rack 12, one end of the second gear 13 is fixedly connected with the rotating shaft A 14, the fixed seat 15 is installed on the upper end of the sprinkling irrigation mechanism 3, the rotating shaft A 14 penetrates through the fixed seat 15 and is connected with the flow guide groove 16, as described above, when the sliding block 8 moves, it will synchronously drive the support rod 10 to move, when the support rod 10 moves, it will synchronously drive the second rack 12 to rise, when the second rack 12 rises, it will synchronously drive the two groups of second gears 13 to rotate, when the two groups of second gears 13 rotate, they will synchronously drive the two groups of rotating shafts A 14 to rotate, when the two groups of rotating shafts A 14 rotate, they will drive the two groups of flow guide grooves 16 to synchronously overturn, when the sliding block 8 is located at the central part of the first reciprocating screw rod 7, it represents that it is noon at this time, and the two groups of flow guide grooves 16 will gradually overturn to the parallel state, at this time, when irrigation is carried out, the gas is discharged outward through the two groups of flow guide grooves 16, which will form an air curtain on the upper end of the sprinkling irrigation mechanism 3, the air curtain will limit the water source and prevent the water source from being atomized and floating upward, at the same time, the air curtain will generate a certain downward pressure on the water source, so as to promote the water source to quickly contact the ground, thereby preventing the irrigation water from being atomized and rapidly evaporated due to the high temperature at noon, limiting the water source through the air curtain to prevent atomization and floating upward, and at the same time, applying the downward pressure to promote the water source to quickly fall to the ground, greatly reducing the evaporation loss of water in the air, ensuring that more water source can be transported to the crop root part, at the same time, the limitation and downward pressure of the air curtain on the water source can prevent the atomized water flow from being taken away by the hot wind at noon or evaporated in advance, so that the irrigation water can accurately act on the crop planting area, ensuring that the crops can effectively absorb water during the noon period and alleviating the influence of high temperature and drought; When the slider 8 moves to the upper half of the first reciprocating lead screw 7, it represents that it is the evening time, at this time, the two groups of guide grooves 16 are driven to rotate by the second rack 12 and the two groups of second gears 13, which will present a downward angle, at this time, when spraying, the two groups of guide grooves 16 will blow the airflow downward, when the airflow blows downward, the airflow will shuttle between the crops, thereby moving the branches and leaves of the crops, preventing water droplets from falling on the surface of the crops, thereby preventing the water from freezing in the surface layer of the crops or the soil gap due to the sudden drop in temperature after the evening, and freezing the root system or seedlings, at the same time, the airflow can accelerate the air circulation between the crops, on the one hand, it can take away the excess moisture around the branches and leaves, further reducing the water residue, on the other hand, it can supplement fresh air to the crops, helping the crops to breathe during the evening period, indirectly improving the growth state.

[0028] Working principle: before using the device, the device is fixed by inserting a plurality of fixed rods at the lower end of the base 1 into the ground, and when using, the worker inserts the humidity sensor into the ground to detect the ground humidity, when the ground humidity is low, the humidity sensor converts the humidity physical quantity into an electrical signal and transmits it to the pump, thereby automatically opening the pump when the ground humidity is low, after the pump is opened, the pump will deliver the water source to the inside of the conveying pipe 2, at this time, the conveying pipe 2 will spray the water source outward through the sprinkling mechanism 3; When using the device, the reduction motor 6 is started synchronously, and after the reduction motor 6 is started, the reduction motor 6 drives the first reciprocating lead screw 7 to rotate, which synchronously drives the slider 8 to rotate, at this time, the slider 8 is limited by the guide rod 9, and then the slider 8 moves reciprocally outside the first reciprocating lead screw 7 through the limitation of the guide rod 9; When the device is used in the morning: when the slider 8 moves, it will drive the support rod 10 to move synchronously, and when the support rod 10 moves, it will synchronously drive the first rack 11 to rise, and when the first rack 11 gradually rises, it will contact the first gear 5, thereby driving the first gear 5 to rotate, and when the first gear 5 gradually rotates, it will synchronously drive the valve rod to rotate, and when the valve rod rotates, it will gradually close the stop valve inside the drain pipe 4, and when the slider 8 is located in the lower half of the first reciprocating lead screw 7, it represents that it is the morning time, at this time, because the surface of the crops contains dew in the morning, and because the initial position of the stop valve inside the drain pipe 4 is open, therefore, when irrigating in the morning, when the water source enters the inside of the sprinkling mechanism 3, part of the water source will be discharged outward through the drain pipe 4, thereby reducing the irrigation amount of the sprinkling mechanism 3; After the pump machine transports the water source into the inside of the conveying pipe 2, the flow of the water flow will drive the rotation of the plurality of groups of blades 18. When the blades 18 rotate, the rotating shaft B19 will be driven to rotate synchronously. When the rotating shaft B19 rotates, the two groups of second reciprocating lead screws 20 will be driven to rotate synchronously. When the two groups of second reciprocating lead screws 20 rotate, the piston 21 will be driven to reciprocate in the guide pipe 22. When the guide pipe 22 reciprocates, it will continuously convey gas in the connecting pipe 23. After the gas enters the connecting pipe 23, the gas will enter the two groups of flow guide grooves 16 through the connecting pipe 23. After the gas enters the flow guide grooves 16, it will be discharged outward through the flow guide grooves 16. When the device is used at noon: when the sliding block 8 moves, the support rod 10 will be driven to move synchronously. When the support rod 10 moves, the second rack 12 will be driven to rise synchronously. When the second rack 12 rises, the two groups of second gears 13 will be driven to rotate synchronously. When the two groups of second gears 13 rotate, the two groups of rotating shafts A14 will be driven to rotate synchronously. When the two groups of rotating shafts A14 rotate, the two groups of flow guide grooves 16 will be driven to flip synchronously. When the sliding block 8 is located at the center part of the first reciprocating lead screw 7, it means that it is noon, and the two groups of flow guide grooves 16 will gradually flip to a parallel state. At this time, when irrigating, the gas is discharged outward through the two groups of flow guide grooves 16, forming a gas curtain on the upper end of the sprinkling irrigation mechanism 3. When the device is used in the evening: when the sliding block 8 moves to the upper half of the first reciprocating lead screw 7, it means that it is in the evening. At this time, the two groups of flow guide grooves 16 will be driven to rotate by the second rack 12 and the two groups of second gears 13, and will present a downward angle. At this time, when irrigating, the two groups of flow guide grooves 16 will blow the airflow to the lower end. When the airflow is blown downward, the airflow will shuttle between the crops.

[0029] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An intermittent sprinkler irrigation device based on water demand, comprising a base (1), characterized in that: A delivery pipe (2) is installed at the upper end of the base (1), one end of the delivery pipe (2) passes through the base (1) and extends to the lower end thereof and is connected to a pump controlled by a humidity sensor, the other end of the delivery pipe (2) is connected to a sprinkler mechanism (3), one side of the sprinkler mechanism (3) is connected to a drain pipe (4), and a stop valve is provided inside the drain pipe (4); A first reciprocating screw (7) is rotated on one side of the delivery pipe (2), a slider (8) is slid on the outside of the first reciprocating screw (7) and moves vertically along the first reciprocating screw (7), one end of the slider (8) is connected to a second rack (12), and two groups of guide grooves (16) are rotated on the upper end of the sprinkler mechanism (3), one end of each of the two groups of guide grooves (16) is connected to a second gear (13), and the two groups of the second gears (13) are meshed with the second rack (12); A sealing groove (17) is installed on one side of the drainage pipe (4), a rotating shaft B (19) rotates inside the sealing groove (17), guide tubes (22) are installed on both sides of the sealing groove (17), a second reciprocating screw (20) rotates inside the two sets of guide tubes (22), and a piston (21) slides outside the second reciprocating screw (20).

2. The intermittent sprinkler irrigation device based on water demand according to claim 1, characterized in that: A plurality of sets of fixing rods are installed at the lower end of the base (1), and a fixing frame is installed on the outside of the sprinkler mechanism (3).

3. The intermittent sprinkler irrigation device based on water demand according to claim 2, characterized in that: A reduction motor (6) is installed at the lower end of the base (1), and one end of the first reciprocating screw (7) passes through the base (1) and extends to the lower end to be connected to the output end of the reduction motor (6).

4. The intermittent sprinkler irrigation device based on water demand according to claim 1, characterized in that: The first reciprocating screw (7) is connected to the slider (8) ball nut pair, and a guide rod (9) is fixedly connected to the upper surface of the base (1), and the other end of the guide rod (9) passes through the slider (8) and extends to the upper end.

5. The intermittent sprinkler irrigation device based on water demand according to claim 1, characterized in that: One end of the slider (8) is fixedly connected to a support rod (10), one side of the support rod (10) is mounted with a first rack (11), one side of the first rack (11) is meshed with a first gear (5), and the first rack (11) and the first gear (5) are located in the same plane.

6. The intermittent sprinkler irrigation device based on water demand according to claim 5, characterized in that: One end of the first gear (5) close to the drain pipe (4) is fixedly connected to a valve stem, and the other end of the valve stem passes through the drain pipe (4) and extends to the inside to be connected to the stop valve.

7. The intermittent sprinkler irrigation device based on water demand according to claim 1, characterized in that: A plurality of blades (18) are installed on the outside of the rotating shaft B (19), and one end of each of the two sets of the second reciprocating screw rods (20) passes through the sealing groove (17) and extends to the inside to connect with both ends of the rotating shaft B (19).

8. The intermittent sprinkler irrigation device based on water demand according to claim 1, characterized in that: The piston (21) is connected to the second reciprocating screw (20) ball nut pair, one end of the guide tube (22) is fixedly connected to a connecting tube (23), and the other end of the connecting tube (23) is connected to the guide groove (16).

9. The intermittent sprinkler irrigation device based on water demand according to claim 5, characterized in that: One end of the support rod (10) is fixedly connected to the second rack (12), one end of the second gear (13) is fixedly connected to a rotating shaft A (14), and a fixing seat (15) is installed on the upper end of the sprinkler mechanism (3), and the rotating shaft A (14) passes through the fixing seat (15) and is connected to the guide groove (16).

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