Automatic drip irrigation equipment for park greening maintenance

Abstract

The invention relates to the technical field of garden maintenance, in particular to an automatic drip irrigation device for garden greening maintenance, which comprises a main pipeline and a water supply unit, a communicating unit is arranged at the joint of the main pipeline and the water supply unit, when the communicating unit is opened, the main pipeline is communicated with the water supply unit, and when the communicating unit is closed, the main pipeline is disconnected from the water supply unit; a floating plate moving in the vertical direction is arranged in the water collecting tank, the floating plate synchronously ascends and descends along with the height of the liquid level in the water collecting tank, the floating plate has the highest position and the lowest position in the moving stroke in the vertical direction, when the floating plate is located at the lowest position, the communicating unit is opened, and after rainwater enters the water collecting tank, the floating plate ascends under the action of buoyancy; the communication unit is gradually closed. The use cost is reduced, and planting of green plants is not affected by the equipment size.

Description

Technical Field

[0001] The invention relates to the technical field of garden maintenance, and in particular to automatic drip irrigation equipment used for park greening maintenance. Background Art

[0002] At present, when the drip irrigation system for green maintenance is in use, it adopts a variety of sensor types to sense the soil and equipment to control the water pump to work, so as to realize automatic drip irrigation for green maintenance. This method of controlling the start and stop of the water pump is controlled by the sensor element, and the sensor element is very easy to age or be damaged by external force, which makes the drip irrigation system unable to work normally.

[0003] Chinese patent CN218163869U discloses an automatic drip irrigation system for greening maintenance, including a foundation, a greening pool opened on the inner side of the top of the foundation, a greening basin placed on the inner side of the greening pool, the bottom of the greening basin is connected to the inner side of the greening pool, and also includes: a water pump, the water pump is fixed on the side of the top of the foundation away from the greening pool; a control pool, the control pool is opened on one end of the inner side of the greening pool close to the water pump, the top of the control pool is connected to the greening pool, and a sliding roller is fixedly connected to the middle of the bottom surface of the control pool; a floating ring, the floating ring is located on the inner side of the control pool, the bottom surface of the floating ring is fixedly connected to a transmission wire, and one end of the transmission wire away from the floating ring is penetrated through the inner side of the sliding roller and extends to the outside of the greening pool; a control box, the control box is fixed on the upper side of the water pump and located on the outer wall of the foundation, the bottom of the control box is electrically connected to the water pump, and the top of the floating ring is transmission-connected to one end of the transmission wire extending to the outside of the greening pool.

[0004] The above scheme controls the drip irrigation volume of the drip irrigation head through the transmission wire and the float ring, but the rain from the outside will also affect the height of the float ring. The above scheme has limitations on the distribution of greening, that is, the planting area of ​​greening is directly affected by the equipment. This is because green plants need to be planted on the ground foundation, which has a high cost during planting. In addition, the above scheme has limitations when used. The control pool is directly connected to the ground foundation, so it is easy for soil to mix into the control pool. The soil mixed in the control pool will adhere to the transmission wire, causing the movement of the transmission wire to be obstructed. Summary of the invention

[0005] In view of the above problems, an automatic drip irrigation device for park greening maintenance is provided, in which an opening is provided at the upper part of the water collecting tank, and rainwater from the outside flows into the water collecting tank through the opening at the upper part of the water collecting tank. As rainwater continues to flow into the water collecting tank, the water level in the water collecting tank continues to rise, and the rising water level in the water collecting tank gradually contacts with the floating plate and lifts the floating plate, and the floating plate gradually rises, and a connecting unit is provided between the main pipe and the water supply unit, and a connecting block moving in the vertical direction is provided in the connecting unit, and the opening and closing of the connecting unit are realized by lifting the connecting block, and the lifting direction of the connecting block is always opposite to the lifting direction of the floating plate, that is, when the floating plate rises, the outside world is in a rainy state, the connecting block descends, the connecting unit is in a closed state, the water supply unit does not supply water to the main pipe, and the outside world After it stops raining, the floating plate gradually descends due to the evaporation of water in the water collecting tank, so the connecting block gradually rises, and the connecting unit is fully opened after the connecting block rises to the highest position. Since an opening is provided on the upper part of the water collecting tank, the water in the water collecting tank can evaporate from the water collecting tank. In the same area, that is, within the entire greening range of the park, the evaporation of water vapor will not vary greatly. The evaporation in the water collecting tank can represent the evaporation of water vapor in the soil of the park. When the water in the water collecting tank evaporates, the floating plate gradually descends, and the corresponding connecting unit gradually opens. When the connecting unit is fully opened, the water supply unit starts to supply water, so that automatic drip irrigation of the park greening can be realized, and there is no need to rely on weather monitoring equipment and hygrometers, which reduces the cost of use, and the planting of green plants will not be affected by the size of the equipment.

[0006] In order to solve the problems of the prior art, the present invention provides an automatic drip irrigation device for park greening maintenance, comprising a main pipeline evenly provided with drip irrigation heads and a water supply unit connected to the main pipeline; a connecting unit is provided at the connection between the main pipeline and the water supply unit, when the connecting unit is turned on, the main pipeline is connected to the water supply unit, and when the connecting unit is closed, the main pipeline is disconnected from the water supply unit, a water collecting tank with an opening on the upper part is provided on one side of the connecting unit, the water collecting tank is used to collect external rainwater, and a floating plate moving in a vertical direction is provided in the water collecting tank, the floating plate rises and falls synchronously with the liquid level in the water collecting tank, and the floating plate has a highest position and a lowest position in its vertical movement stroke, when the floating plate is at the lowest position, the connecting unit is opened, after rainwater enters the water collecting tank, the floating plate rises due to the buoyancy, and the connecting unit is gradually closed.

[0007] Preferably, the connecting unit includes a connecting shell with a first connecting hole horizontally penetrated therein, a connecting block is slidably arranged in the connecting shell along the vertical direction, when the floating board rises, the connecting block descends, when the floating board descends, the connecting block rises, a second connecting hole is horizontally penetrated therein, when the floating board descends to the lowest position, the connecting block rises to the highest position, and the first connecting hole is completely connected with the second connecting hole.

[0008] Preferably, an overflow port is provided on the side wall of the water collecting tank, the overflow port is communicated with the water supply unit, and the excess accumulated water in the water collecting tank flows into the water supply unit through the overflow port.

[0009] Preferably, a transmission unit is provided between the connecting block and the floating board, and when the floating board rises, the floating board drives the connecting block to descend through the transmission unit, and when the floating board descends, the floating board drives the connecting block to rise through the transmission unit.

[0010] Preferably, the transmission unit includes a first lifting frame fixedly arranged on the floating plate, a second lifting frame fixedly arranged on the upper part of the connecting block, a gear rotatably arranged between the first lifting frame and the second lifting frame, meshing teeth are evenly arranged on the side of the first lifting frame facing the gear, and meshing teeth are evenly arranged on the side of the second lifting frame facing the gear, and the gears are respectively meshed with the first lifting frame and the second lifting frame.

[0011] Preferably, the water supply unit includes a water pump connected to the main pipeline, and the water pump can supply water into the main pipeline through the connecting unit. The first button is arranged on the upper part of the connecting shell. When the connecting block rises to the highest position, the connecting block presses the first button. After the first button is pressed, the water pump is activated.

[0012] Preferably, a sponge is provided at the opening of the water collecting box, and the sponge blocks the opening. After the opening of the water collecting box is blocked by the sponge, a water collecting cavity is formed in the water collecting box.

[0013] Preferably, a blocking frame is arranged on the top of the sponge, and the upper part of the blocking frame is an inclined structure.

[0014] Preferably, a switch valve is provided on the side wall of the water collecting tank, and a second button is provided at the bottom of the connecting shell. On sunny days, the switch valve is in an open state, the switch valve injects water into the water collecting tank, and the connecting block moves from the highest position to the lowest position. When the connecting block moves to the lowest position, the second button is triggered, and the switch valve is activated to close.

[0015] Preferably, a vent hole is provided at the upper portion of the first connecting hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention is provided with an opening at the upper part of the water collecting tank, and rainwater from the outside flows into the water collecting tank through the opening at the upper part of the water collecting tank. As rainwater continuously flows into the water collecting tank, the water level in the water collecting tank also continuously rises, and the rising water level in the water collecting tank gradually contacts with the floating plate and lifts the floating plate, and the floating plate gradually rises, and a connecting unit is provided between the main pipeline and the water supply unit, and a connecting block moving in the vertical direction is provided in the connecting unit, and the opening and closing of the connecting unit are realized by lifting the connecting block, and the lifting direction of the connecting block is always opposite to the lifting direction of the floating plate, that is, when the floating plate rises, the outside world is in a rainy state, the connecting block descends, the connecting unit is in a closed state, the water supply unit does not supply water to the main pipeline, and after it stops raining outside, the floating plate The amount of water in the water tank evaporates and gradually decreases, so the connecting block gradually rises, and the connecting unit is fully opened after the connecting block rises to the highest position. Since an opening is provided on the upper part of the water collecting tank, the water in the water collecting tank can evaporate from the water collecting tank. In the same area, that is, in the entire greening range of the park, the evaporation of water vapor will not vary greatly. The evaporation in the water collecting tank can represent the evaporation of water vapor in the soil of the park. When the water in the water collecting tank evaporates, the floating plate gradually decreases, and the corresponding connecting unit gradually opens. When the connecting unit is fully opened, the water supply unit starts to supply water, so that automatic drip irrigation of the park greening can be realized, and there is no need to rely on weather monitoring equipment and hygrometers, which reduces the cost of use, and the planting of green plants will not be affected by the size of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of an automatic drip irrigation device used for park greening maintenance.

[0019] Figure 2 It is an automatic drip irrigation device used for park greening maintenance. Figure 1 A local enlarged schematic diagram of point A in the middle.

[0020] Figure 3 It is a side view of an automatic drip irrigation device used for park greening maintenance.

[0021] Figure 4 It is an automatic drip irrigation device used for park greening maintenance. Figure 3 Schematic cross-sectional view at the middle BB.

[0022] Figure 5 It is a cutaway stereoscopic schematic diagram of an automatic drip irrigation device used for park greening maintenance.

[0023] Figure 6 It is an automatic drip irrigation device used for park greening maintenance. Figure 5 A partial enlarged schematic diagram of point C in the middle.

[0024] Figure 7It is an automatic drip irrigation device used for park greening maintenance. Figure 5 A partial enlarged schematic diagram of point D in the middle.

[0025] Figure 8 The present invention is a three-dimensional schematic diagram of an automatic drip irrigation device used for park greening maintenance with the main pipe and drip irrigation head removed.

[0026] Fig. 9 The invention is a cutaway stereoscopic schematic diagram of an automatic drip irrigation device used for park greening maintenance when a connecting block rises to the highest position.

[0027] The numbers in the figure are:

[0028] 1. Main pipeline; 11. Drip irrigation head; 2. Water supply unit; 21. Water pump; 22. First button; 23. Water supply tank; 3. Connecting unit; 31. Connecting shell; 311. First connecting hole; 312. Air vent; 32. Connecting block; 321. Second connecting hole; 4. Water collecting tank; 41. Floating plate; 42. Overflow port; 43. Sponge; 44. Blocking frame; 45. Switch valve; 46. Second button; 5. Transmission unit; 51. First lifting frame; 52. Second lifting frame; 53. Gear. DETAILED DESCRIPTION

[0029] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Reference Figure 1 and Figure 4 : An automatic drip irrigation device for park greening maintenance, comprising a main pipe 1 evenly provided with drip irrigation heads 11 and a water supply unit 2 connected to the main pipe 1; a connecting unit 3 is provided at the connection between the main pipe 1 and the water supply unit 2, when the connecting unit 3 is turned on, the main pipe 1 is connected to the water supply unit 2, when the connecting unit 3 is closed, the main pipe 1 is disconnected from the water supply unit 2, a water collecting tank 4 with an opening on the upper part is provided on one side of the connecting unit 3, the water collecting tank 4 is used to collect external rainwater, and a floating plate 41 moving in the vertical direction is provided in the water collecting tank 4, the floating plate 41 rises and falls synchronously with the liquid level in the water collecting tank 4, the floating plate 41 has a highest position and a lowest position in the vertical movement stroke, when the floating plate 41 is at the lowest position, the connecting unit 3 is opened, after the rainwater enters the water collecting tank 4, the floating plate 41 rises due to the buoyancy, and the connecting unit 3 is gradually closed.

[0031] The main road 1 is arranged in a winding manner in the park greening area according to the distribution of the park greening. A plurality of drip irrigation heads 11 are evenly arranged on the main road 1 along the extension direction of the main road 1. The water supply unit 2 can supply water to the main road 1. When drip irrigation is performed on the park greening through the drip irrigation head 11, it is necessary to determine the external weather and the dryness of the soil. However, the monitoring of the external weather mostly depends on the weather monitoring equipment, and a signal receiver is arranged in the water supply unit 2 to transmit the signal to the water supply unit 2 through the network, that is, on rainy days, the water supply unit 2 stops supplying water, and on sunny days, the water supply unit 2 starts supplying water, but the water supply unit 2 is different in the four seasons. The temperature of the day is different, and the evaporation amount of water is also different. Therefore, it is necessary to set a hygrometer in the soil to accurately monitor the moisture in the soil. However, the present invention does not need to rely on weather monitoring equipment and hygrometers. The specific working principle is as follows: an opening is set at the upper part of the water collecting tank 4, and rainwater from the outside flows into the water collecting tank 4 through the opening at the upper part of the water collecting tank 4. As rainwater continues to flow into the water collecting tank 4, the water level in the water collecting tank 4 continues to rise. The rising water level in the water collecting tank 4 gradually contacts the floating plate 41 and lifts the floating plate 41. The floating plate 41 gradually rises, and a The connecting unit 3 is provided with a connecting block 32 that moves in the vertical direction. The opening and closing of the connecting unit 3 are realized by the lifting and lowering of the connecting block 32, and the lifting direction of the connecting block 32 is always opposite to the lifting direction of the floating plate 41, that is, when the floating plate 41 rises, it is raining outside, the connecting block 32 falls, the connecting unit 3 is in a closed state, and the water supply unit 2 does not supply water to the main pipeline 1. After it stops raining outside, the floating plate 41 gradually falls due to the evaporation of water in the water collecting tank 4, so that the connecting block 32 gradually rises. The connecting unit 3 is fully opened after the connecting block 32 rises to the highest position, and due to the collection tank 4 An opening is provided at the top of the water tank 4, and the water in the water collecting tank 4 can evaporate from the water collecting tank 4. In the same area, that is, in the entire greening range of the park, the evaporation amount of water vapor will not be significantly different. The evaporation amount in the water collecting tank 4 can represent the evaporation amount of water vapor in the park soil. When the water in the water collecting tank 4 evaporates, the floating plate 41 gradually descends, and the corresponding connecting unit 3 also gradually opens. When the connecting unit 3 is fully opened, the water supply unit 2 starts to supply water, so that automatic drip irrigation of the park greening can be realized, and there is no need to rely on weather monitoring equipment and hygrometers, which reduces the cost of use, and the planting of green plants will not be affected by the size of the equipment.

[0032] Reference Figure 6 and Fig. 9The connecting unit 3 includes a connecting shell 31 with a first connecting hole 311 horizontally penetrated therethrough, a connecting block 32 is slidably arranged in the connecting shell 31 along the vertical direction, when the floating plate 41 rises, the connecting block 32 descends, when the floating plate 41 descends, the connecting block 32 rises, a second connecting hole 321 is horizontally penetrated therethrough on the connecting block 32, when the floating plate 41 descends to the lowest position, the connecting block 32 rises to the highest position, and the first connecting hole 311 is completely connected with the second connecting hole 321.

[0033] The first communicating hole 311 completely penetrates the two opposite side walls of the communicating shell 31, so that two first communicating holes 311 are formed on the side walls of the communicating shell 31, and the axes of the two first communicating holes 311 are collinear, the main pipeline 1 is connected to one of the first communicating holes 311 on the communicating shell 31, and the other first communicating hole 311 is connected to the water supply unit 2. When it rains outside, rainwater flows into the water collecting tank 4, and the water level in the water collecting tank 4 gradually rises. The accumulated water in the water collecting tank 4 drives the floating plate 41 to rise synchronously while rising. When the floating plate 41 rises in the vertical direction, the communicating block 32 located in the communicating shell 31 descends in the vertical direction. The communicating block 32 also has the highest position and the lowest position when moving in the communicating shell 31. When the communicating block 32 is at the highest position, the first communicating hole 311 and the second communicating hole 321 are connected. When the communicating block 32 is at the highest position, the first communicating hole 311 and the second communicating hole 321 are connected. When the connecting block 32 is at the lowest position, the first connecting hole 311 and the second connecting hole 321 are in an interlaced state, and the connecting block 32 blocks the first connecting hole 311 on the connecting shell 31. At this time, the water supply unit 2 cannot supply water to the main pipeline 1, which avoids the drip irrigation state of the dripper head on rainy days, and also avoids the use of additional weather monitoring equipment to monitor the weather, thereby reducing the use cost and the subsequent maintenance cost. When it stops raining outside and the temperature continues to rise, the water in the water collecting tank 4 gradually evaporates, the water level in the water collecting tank 4 drops, and the floating plate 41 drops synchronously with the liquid level, so that the connecting block 32 located in the connecting shell 31 rises in the vertical direction. When the connecting block 32 rises to the highest position, the first connecting hole 311 and the second connecting hole 321 are connected, and the water supply unit 2 can normally supply water to the main pipeline 1.

[0034] Reference Figure 7 An overflow port 42 is provided on the side wall of the water collecting tank 4 , and the overflow port 42 is connected to the water supply unit 2 , so that the excess accumulated water in the water collecting tank 4 flows into the water supply unit 2 through the overflow port 42 .

[0035] During the rainy season, rainwater continuously falls into the water collecting tank 4, and the accumulated water in the water collecting tank 4 continues to increase. If the overflow port 42 is not provided, when the water in the water collecting tank 4 is full, the excess water will overflow from the upper part of the water collecting tank 4, resulting in a waste of water resources. In order to avoid the above situation, an overflow port 42 is opened on the side wall of the water collecting tank 4, so that the excess water in the water collecting tank 4 flows into the water supply unit 2. The water flowing into the water supply unit 2 can supply water to the drip irrigation head 11, thereby realizing the recycling of water resources.

[0036] Reference Figure 3 and Figure 4 A transmission unit 5 is provided between the connecting block 32 and the floating plate 41. When the floating plate 41 rises, the floating plate 41 drives the connecting block 32 to descend through the transmission unit 5. When the floating plate 41 descends, the floating plate 41 drives the connecting block 32 to rise through the transmission unit 5.

[0037] As can be seen from the foregoing, the floating plate 41 has a highest position and a lowest position when it rises in its vertical movement stroke, and the connecting block 32 also has a highest position and a lowest position when it slides in the connecting shell 31. Under the transmission action of the transmission unit 5, when the floating plate 41 rises in the vertical direction, the connecting block 32 descends in the vertical direction; when the floating plate 41 descends in the vertical direction, the connecting block 32 rises in the vertical direction. When the floating plate 41 is at the highest position of its own movement stroke, the water in the water collecting tank 4 overflows from the overflow port 42, and the connecting block 32 is at the lowest position. The second connecting hole 321 on the connecting block 32 and the first connecting hole 311 on the connecting shell 31 are in a staggered state. When the floating plate 41 is at the lowest position, the water in the water collecting tank 4 is about to dry up, indicating that the external soil humidity is low. At this time, the connecting block 32 is at the highest position, and the second connecting hole 321 on the connecting block 32 and the first connecting hole 311 on the connecting shell 31 overlap and connect with each other. When the water supply unit 2 is started, the water flow can smoothly pass through the first connecting hole 311 and the second connecting hole 321 and flow into the main pipeline 1, thereby realizing water supply to the dripper head.

[0038] Reference Figure 3-Figure 5 , Figure 8 and Fig. 9 The transmission unit 5 includes a first lifting frame 51 fixedly arranged on the floating plate 41, a second lifting frame 52 fixedly arranged on the upper part of the connecting block 32, a gear 53 rotatably arranged between the first lifting frame 51 and the second lifting frame 52, the first lifting frame 51 is evenly provided with meshing teeth on one side facing the gear 53, and the second lifting frame 52 is evenly provided with meshing teeth on one side facing the gear 53, and the gear 53 is meshed with the first lifting frame 51 and the second lifting frame 52 respectively.

[0039] When the floating board 41 rises under the action of buoyancy, the floating board 41 drives the first lifting frame 51 fixedly connected to the floating board 41 to rise, and under the transmission of the gear 53, the second lifting frame 52 descends in the vertical direction, so that when the floating board 41 rises, the connecting block 32 descends; when the floating board 41 descends, the connecting block 32 rises.

[0040] Reference Figure 6 and Figure 8 The water supply unit 2 includes a water pump 21 connected to the main pipeline 1. The water pump 21 can supply water into the main pipeline 1 through the connecting unit 3. The first button 22 is arranged on the upper part of the connecting shell 31. When the connecting block 32 rises to the highest position, the connecting block 32 presses the first button 22. After the first button 22 is pressed, the water pump 21 is activated.

[0041] A water supply tank 23 is provided at the overflow port 42, and the water supply tank 23 is used to receive the water flow overflowing from the overflow port 42. The water pump 21 is provided on the side wall of the water supply tank 23, and the water pump 21 can pump the water in the water supply tank 23 into the main pipeline 1. When the first button 22 is pressed, the first connecting hole 311 and the second connecting hole 321 are in a completely connected state. When the connecting block 32 rises, the first connecting hole 311 and the second connecting hole 321 will experience a process of intersecting and then completely overlapping. When the first connecting hole 311 and the second connecting hole 321 intersect, if the water pump 21 is started, the water flow pressure supplied to the main pipeline 1 is likely to be unstable. This is because as the connecting block 32 rises, the overlapping part of the first connecting hole 311 and the second connecting hole 321 gradually increases. When the connecting block 32 rises to the highest position, the first button 22 is triggered to avoid the above situation. After the water pump 21 is activated, it stops after running for a rated time.

[0042] Reference Figure 2 A sponge 43 is provided at the opening of the water collecting box 4, and the sponge 43 blocks the opening. After the opening of the water collecting box 4 is blocked by the sponge 43, a water collecting cavity is formed in the water collecting box 4.

[0043] A sponge 43 is arranged at the opening of the water collecting tank 4 to form a water collecting cavity in the water collecting tank 4. The main purpose is to prevent the water in the water collecting tank 4 from evaporating too quickly. This is because the moisture in the soil will also be subject to the resistance of the soil when evaporating. If the opening of the water collecting tank 4 is in an open state, the evaporation amount of the water in the water collecting tank 4 will be greater than the evaporation amount of the water in the park greening soil. Arranging the sponge 43 at the opening of the water collecting tank 4 can simulate the evaporation speed of the water in the soil, thereby avoiding the use of a soil moisture meter and reducing the use cost. In addition, the sponge 43 is water permeable, and rainwater from the outside can flow into the water collecting tank 4 through the sponge 43.

[0044] Reference Figure 2A blocking frame 44 is arranged on the top of the sponge 43, and the upper part of the blocking frame 44 is an inclined structure.

[0045] The setting of the blocking frame 44 can prevent fallen leaves from the outside from covering the upper part of the sponge 43, thereby preventing rainwater from the outside from flowing smoothly into the water collecting tank 4 through the sponge 43, and at the same time, the water vapor evaporated in the water collecting tank 4 cannot be dispersed through the sponge 43. The blocking frame 44 is set on the sponge 43 to avoid the occurrence of the above situation, ensuring that rainwater from the outside can smoothly enter the water collecting tank 4 through the sponge 43, and at the same time, the water vapor evaporated in the water collecting tank 4 can also smoothly disperse through the sponge 43.

[0046] Reference Figure 1 and Figure 6 : A switch valve 45 is arranged on the side wall of the water collecting tank 4, and a second button 46 is arranged at the bottom of the connecting shell 31. On sunny days, the switch valve 45 is in an open state, the switch valve 45 injects water into the water collecting tank 4, and the connecting block 32 moves from the highest position to the lowest position. When the connecting block 32 moves to the lowest position, the second button 46 is triggered, and the switch valve 45 is activated and closed.

[0047] When the first button 22 is triggered by the connecting block 32, the switch valve 45 opens, and water is injected into the water collecting tank 4 through the switch valve 45. When the water in the water collecting tank 4 is full, that is, when the connecting block 32 in the connecting shell 31 drops to the lowest position, the second button 46 is triggered, and the switch valve 45 is closed. At this time, the water in the water collecting tank 4 continues to evaporate. As the water evaporates, the water level in the water collecting tank 4 gradually decreases, while the connecting block 32 in the connecting shell 31 rises. When the connecting block 32 rises to the highest position, the first button 22 is triggered, and the switch valve 45 is opened again. At the same time, the water pump 21 in the water supply unit 2 is also started, and the water pump 21 supplies water to the main pipeline 1. In this way, automatic drip irrigation is realized, and at the same time, the situation of drowning green plants due to excessive water supply can be avoided.

[0048] Reference Figure 8 A vent hole 312 is provided at the upper portion of the first connecting hole 311 .

[0049] By providing a vent hole 312 at the upper portion of the first communication hole 311 , the air in the communication shell 31 can be discharged smoothly, thereby ensuring that the communication block 32 can move smoothly in the communication shell 31 .

[0050] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An automatic drip irrigation device for park greening maintenance, comprising a main pipe (1) evenly provided with drip irrigation heads (11) and a water supply unit (2) connected to the main pipe (1); It is characterized in that A connecting unit (3) is provided at the connection between the main pipeline (1) and the water supply unit (2); when the connecting unit (3) is opened, the main pipeline (1) is connected to the water supply unit (2); when the connecting unit (3) is closed, the main pipeline (1) is disconnected from the water supply unit (2); a water collecting tank (4) having an opening at the top is provided on one side of the connecting unit (3); the water collecting tank (4) is used to collect rainwater from the outside, and a floating plate (41) is provided in the water collecting tank (4) and moves in a vertical direction; the floating plate (41) rises and falls synchronously with the liquid level in the water collecting tank (4); the floating plate (41) has a highest position and a lowest position in the moving stroke in the vertical direction; when the floating plate (41) is at the lowest position, the connecting unit (3) is opened, and after rainwater enters the water collecting tank (4), the floating plate (41) rises due to the buoyancy, and the connecting unit (3) is gradually closed.

2. The automatic drip irrigation equipment for park greening maintenance according to claim 1 is characterized in that: The communication unit (3) comprises a communication shell (31) having a first communication hole (311) extending horizontally therethrough, a communication block (32) being slidably arranged in the communication shell (31) in a vertical direction, when the floating plate (41) rises, the communication block (32) descends, when the floating plate (41) descends, the communication block (32) rises, a second communication hole (321) extending horizontally therethrough is provided on the communication block (32), when the floating plate (41) descends to the lowest position, the communication block (32) rises to the highest position, and the first communication hole (311) is completely connected to the second communication hole (321).

3. The automatic drip irrigation equipment for park greening maintenance according to claim 1 is characterized in that: An overflow port (42) is provided on the side wall of the water collecting tank (4), the overflow port (42) is in communication with the water supply unit (2), and excess accumulated water in the water collecting tank (4) flows into the water supply unit (2) through the overflow port (42).

4. The automatic drip irrigation equipment for park greening maintenance according to claim 2 is characterized in that: A transmission unit (5) is provided between the connecting block (32) and the floating plate (41); when the floating plate (41) rises, the floating plate (41) drives the connecting block (32) to descend through the transmission unit (5); when the floating plate (41) descends, the floating plate (41) drives the connecting block (32) to rise through the transmission unit (5).

5. The automatic drip irrigation equipment for park greening maintenance according to claim 4 is characterized in that: The transmission unit (5) comprises a first lifting frame (51) fixedly arranged on the floating plate (41), a second lifting frame (52) fixedly arranged on the upper part of the connecting block (32), a gear (53) rotatably arranged between the first lifting frame (51) and the second lifting frame (52), meshing teeth are evenly arranged on a side of the first lifting frame (51) facing the gear (53), and meshing teeth are evenly arranged on a side of the second lifting frame (52) facing the gear (53), and the gear (53) is meshed with the first lifting frame (51) and the second lifting frame (52) respectively.

6. The automatic drip irrigation equipment for park greening maintenance according to claim 2 is characterized in that: The water supply unit (2) comprises a water pump (21) connected to the main pipeline (1); the water pump (21) can supply water into the main pipeline (1) through the connecting unit (3); a first button (22) is arranged on the upper part of the connecting shell (31); when the connecting block (32) rises to the highest position, the connecting block (32) presses the first button (22); after the first button (22) is pressed, the water pump (21) is activated.

7. The automatic drip irrigation equipment for park greening maintenance according to claim 1 is characterized in that: A sponge (43) is provided at the opening of the water collecting box (4), and the sponge (43) blocks the opening. After the opening of the water collecting box (4) is blocked by the sponge (43), a water collecting chamber is formed in the water collecting box (4).

8. The automatic drip irrigation equipment for park greening maintenance according to claim 7 is characterized in that: A blocking frame (44) is arranged on the top of the sponge (43), and the upper part of the blocking frame (44) is an inclined structure.

9. The automatic drip irrigation equipment for park greening maintenance according to claim 2, characterized in that: A switch valve (45) is arranged on the side wall of the water collecting tank (4), and a second button (46) is arranged at the bottom of the connecting shell (31). On sunny days, the switch valve (45) is in an open state, the switch valve (45) injects water into the water collecting tank (4), and the connecting block (32) moves from the highest position to the lowest position. When the connecting block (32) moves to the lowest position, the second button (46) is triggered, and the switch valve (45) is activated and closed.

10. The automatic drip irrigation equipment for park greening maintenance according to claim 2, characterized in that: A vent hole (312) is provided at the upper portion of the first communication hole (311).

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