Photovoltaic greenhouse rainwater recovery system and photovoltaic greenhouse

Abstract

The invention discloses a photovoltaic greenhouse rainwater recovery system and a photovoltaic greenhouse, and relates to the technical field of combination of photovoltaic power generation and agricultural planting. The rain-proof window comprises a glass rain-receiving surface which is obliquely arranged, and further comprises a plurality of separation frames for separating the glass rain-receiving surface into a plurality of strip-shaped rain-receiving surfaces. According to the invention, the first water storage baffle is rotatably arranged between the first water storage area and the second water storage area, and the second water storage baffle is rotatably arranged between the second water storage area and the third water storage area, so that the first water storage baffle and the second water storage baffle can release rainwater above to water and clean the photovoltaic panel after being rotatably opened; and meanwhile, due to the design of a transmission rod, when the first water storage baffle or the second water storage baffle rotates downwards to release rainwater, a driving rectangular frame drives bristles to brush the upper surface of the photovoltaic panel, so that after the upper surface of the photovoltaic panel is irrigated and flushed by the rainwater, the rainwater can be brushed by the bristles, and the capability of better cleaning dirt on the surface of the photovoltaic panel is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of combining photovoltaic power generation with agricultural planting, and in particular to a photovoltaic greenhouse rainwater recovery system and a photovoltaic greenhouse. Background Art

[0002] Photovoltaic power generation is a technology that uses solar energy for power generation. It is currently very mature. Generally, it only requires the construction of photovoltaic panels, photovoltaic inverters, and power storage equipment to achieve the conversion of solar energy into electrical energy. In practice, there are not many areas where photovoltaic panels can be laid stably (the laying of photovoltaic panels will occupy ground area). Therefore, in addition to laying photovoltaic panels on roofs, photovoltaic laying solutions combined with agricultural greenhouses have also become popular.

[0003] In the existing technology, photovoltaic panels are laid on agricultural greenhouses, which can effectively utilize the laying area on the greenhouse. At the same time, photovoltaic panels are laid at intervals on the top of the greenhouse, and sun-loving and shade-loving plants can be arranged at intervals (that is, shade-loving plants are planted under the photovoltaic panels to reduce the intensity and time of sunlight exposure), which can bring diversity to plant planting.

[0004] In view of the above existing technologies, and considering that greenhouse cultivation is generally carried out in large areas, which makes irrigation in the dry season very passive, the existing technology has designed a rainwater recovery system for use in photovoltaic greenhouses, such as the photovoltaic greenhouse rainwater recovery system and photovoltaic greenhouse with patent announcement number CN220493736U.

[0005] The core of the prior art adopts watering to cool the photovoltaic panels, but in practice, photovoltaic panels are cooled by air or circulating water, and watering is basically used to remove dirt on the photovoltaic panels, thereby avoiding the temperature increase caused by dust and dirt. In response to this, the present application provides a photovoltaic greenhouse rainwater recycling system and a photovoltaic greenhouse to realize the function of recycling rainwater and cleaning the photovoltaic panels at the same time. Summary of the invention

[0006] The purpose of the present invention is to provide a rainwater recycling system that can not only realize greenhouse rainwater recycling but also clean photovoltaic panels at the same time. The present invention provides a photovoltaic greenhouse rainwater recycling system and a photovoltaic greenhouse.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A photovoltaic greenhouse rainwater recycling system includes a tilted glass rain-receiving surface and a plurality of partition frames for dividing the glass rain-receiving surface into a plurality of strip-shaped rain-receiving surfaces; The strip rain-receiving surface is divided into a first water storage area, a second water storage area and a third water storage area from the inclined upper end downward, wherein the inclined upper sections of the second water storage area and the third water storage area are both overhead-mounted with photovoltaic panels; A first water storage baffle is rotatably provided between the first water storage area and the second water storage area, and a second water storage baffle is rotatably provided between the second water storage area and the third water storage area. Both the first water storage baffle and the second water storage baffle can be rotatably opened to release rainwater above, so that rainwater is sprinkled on the upper surface of the photovoltaic panel and reset after the accumulated rainwater is released; The length of the partition frame is constructed with a wheel groove on the inner side, and a rectangular frame is arranged parallel to the top of the photovoltaic panel. The lower surface of the rectangular frame is fixed with bristles for brushing the upper surface of the photovoltaic panel, and the side of the rectangular frame is rotatably mounted with wheels that roll in the wheel groove. The rectangular frame and the first water storage baffle and the rectangular frame and the second water storage baffle are connected by a transmission rod, one end of the transmission rod is hinged to the first water storage baffle or the second water storage baffle, and the other end is hinged to the rectangular frame, so that when the first water storage baffle or the second water storage baffle rotates downward to release rainwater, the rectangular frame is driven to drive the bristles to brush the upper surface of the photovoltaic panel.

[0008] Furthermore, the first water storage area and the second water storage area are both composed of a pair of side water baffles fixed on the side of the partition frame and a front water baffle fixed to the strip rain-receiving surface and located between two adjacent water storage areas. The front water baffle is "U"-shaped and is connected and fixed to the two side water baffles and the side of the partition frame. The first water storage baffle or the second water storage baffle is correspondingly rotatably installed on the front water baffle and is used to seal the "U"-shaped opening. It also includes a hydraulic strut with one end hinged to the side of the first water storage baffle or the second water storage baffle and the other end hinged to the side of the side water baffle.

[0009] Furthermore, the third water storage area includes a baffle plate fixed to the side and end of the partition frame and a receiving box integrally constructed with the baffle plate and fixed to the partition frame, and the receiving box is connected to the lower end edge of the strip rain-receiving surface and is watertight.

[0010] Furthermore, a siphon elbow is fixed on one side of the lower end of the strip rain-receiving surface of the baffle plate, and a sewage pipe is connected and fixed to the bottom of the receiving box, and a sealing plug is threadedly connected to the lower end of the sewage pipe.

[0011] Furthermore, the water storage capacity of the second water storage area is twice the water storage capacity of the first water storage area, and the water storage capacity of the third water storage area is 1.5-2 times the water storage capacity of the second water storage area. A hollow square sleeve is fixed on the lower end face of the rectangular frame, and a slide is slidably inserted in the hollow square sleeve. A foam float is fixed on the free end of the slide. A bolt whose end abuts against the slide is threadedly connected to the surface of the hollow square sleeve. Buckle grooves are constructed on the first water storage baffle and the second water storage baffle. A buckle plate for buckling the buckle groove is slidably provided on the positive water baffle, and a buoyancy box is fixed at the center position of the buckle plate. The upper end of the buckle groove is divided into a release area. A mounting plate is fixed on the side of the positive water baffle, and a trigger rod is slidably penetrated through the thickness of the mounting plate. A support rod for supporting the bottom of the buckle plate is provided below the mounting plate, and the support rod is connected to the trigger rod by a push plate, and the push plate and the mounting plate are connected by a spring that provides tension.

[0012] Furthermore, the water retaining surface of the positive water retaining plate is constructed with an inclination angle facing the side of the partition frame and a sewage outlet is constructed on the side of the partition frame, and the sewage outlet is located at the lower end of the inclination angle. A plugging plate for blocking the sewage outlet is installed on the side water retaining plate through an axial rod rotation, and a hinge seat is fixed on the rectangular frame. The plugging plate can be rotated around the axial rod to close the sewage outlet in a free state. The upper end of the plugging plate is hinged with a first hinge rod, and the hinge seat is hinged with a second hinge rod, and the free ends of the first hinge rod and the second hinge rod are hinged to each other.

[0013] Furthermore, a connecting port is constructed on the other side of the rectangular frame corresponding to the sewage outlet, and the connecting port is aligned with the sewage outlet of the adjacent rectangular frame and the number of rectangular frames is an even number. A steel wire rope is fixedly connected to the upper end of the blocking plate, and a rope ring is constructed at the lower end of the steel wire rope so that pulling the rope ring can drive the blocking plate to rotate around the shaft rod to open the sewage outlet.

[0014] Furthermore, a plurality of the siphon bends are connected and fixed on the same water collecting pipe, the water collecting pipe is horizontally arranged and one end of the water collecting pipe is connected to a water collecting tank located on the ground through a pipeline, and the other end of the water collecting pipe is fixedly connected to an L-shaped pipe.

[0015] Furthermore, the inclined upper ends of the multiple rectangular frames are fixed to the same water collecting trough, and the water collecting trough is connected to each rectangular frame through a notch. The end side of the water collecting trough is fixedly connected to a hard pipe extending into the water collecting tank, and the end of the hard pipe is connected to a water pump placed in the water collecting tank.

[0016] A photovoltaic greenhouse, comprising the photovoltaic greenhouse rainwater recovery system as described in any one of claims 1 to 9, and also comprising a greenhouse bracket and a pipe bracket, wherein the greenhouse bracket is used to fix and support the glass rain-receiving surface, and the pipe bracket is used to support and fix a water collecting pipe.

[0017] The beneficial effects of the present invention are as follows: The present invention has a first water storage baffle rotatably arranged between the first water storage area and the second water storage area, and a second water storage baffle rotatably arranged between the second water storage area and the third water storage area, so that the first water storage baffle and the second water storage baffle can be rotated and opened to release rainwater from above to water and clean the photovoltaic panel. At the same time, the design of the transmission rod enables the first water storage baffle or the second water storage baffle to rotate downward to release rainwater to drive the torque frame to drive the bristles to brush the upper surface of the photovoltaic panel. In this way, after the rainwater is used to irrigate and flush the upper surface of the photovoltaic panel, it can be brushed by the bristles to obtain a better ability to clean dirt on the surface of the photovoltaic panel.

[0018] When the rectangular frame of the present invention moves downward, it will pull the second hinged rod and the first hinged rod, and drive the blocking plate to rotate around the shaft to open the sewage outlet. Due to the existence of the inclination angle, the remaining water containing gravel will flow out of the sewage outlet from here carrying the gravel. Such a design can avoid the problem of mud and sand accumulation on the rain-affected surface of the glass on the top of the greenhouse caused by the protruding design of the partition frame.

[0019] The present invention is designed such that the steel wire rope can pull the blocking plate to rotate around the shaft rod, so that the sewage outlet can be manually opened.

[0020] The present invention pumps water into the water collection tank by adding an additional water pump, and can actively clean the surface of the photovoltaic panel in rainless weather, thereby achieving the effect of actively cleaning the photovoltaic panel, greatly improving the working efficiency of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the present invention from another angle; Figure 3 It is a schematic diagram of the three-dimensional structure of a single strip rain-receiving surface of the present invention; Figure 4 The present invention Figure 3 A schematic diagram of the three-dimensional structure when the first water storage baffle is opened; Figure 5 The present invention Figure 4 Another angle diagram of the diagram; Figure 6 The present invention Figure 3 A partial structural screenshot of ; Figure 7 The present invention Figure 4 A partial structural screenshot of ; Figure 8 The present invention Figure 5 A partial structural screenshot of ; Fig. 9 It is a partial structural schematic diagram of the rectangular frame part of the present invention; Fig.10 The present invention Fig. 9 Enlarged view of point A in the middle; Fig.11 It is a structural schematic diagram of the first water storage baffle of the present invention; Fig.12 The present invention Fig.11 A schematic diagram of the structure from another angle; Fig.13 It is a structural schematic diagram of the second water storage baffle of the present invention; Fig.14 The present invention Fig.11 Enlarged view of point B in the middle; Fig.15 The present invention Fig.12 Enlarged view of point C in the middle; Fig.16 The present invention Fig.13 Enlarged view of point D in the middle; Figure numerals: 1, glass rain-receiving surface; 2, strip rain-receiving surface; 3, partition frame; 301, wheel groove; 4, first water storage area; 5, second water storage area; 6, third water storage area; 61, enclosure plate; 62, receiving box; 7, first water storage baffle; 8, second water storage baffle; 9, rectangular frame; 91, bristles; 92, wheels; 93, transmission rod; 94, hollow square sleeve; 95, skateboard; 96, foam float; 97, bolt; 10, side baffle; 11, front baffle; 12, hydraulic support rod; 13, siphon elbow; 14, sewage pipe; 15 , sealing plug; 16, sewage outlet; 17, shaft rod; 18, blocking plate; 19, hinged seat; 20, first hinged rod; 21, second hinged rod; 22, connecting port; 23, wire rope; 24, rope ring; 25, water collecting pipe; 26, water collecting box; 27, L-shaped pipe; 28, water collecting trough; 29, notch; 30, hard pipeline; 31, greenhouse support; 32, pipe support; 33, buckle groove; 34, buckle plate; 35, buoyancy box; 36, release area; 37, mounting plate; 38, trigger rod; 39, support rod; 40, push plate; 41, spring. DETAILED DESCRIPTION

[0022] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The photovoltaic greenhouse rainwater recycling system and photovoltaic greenhouse provided in this embodiment are mainly used to provide a rainwater recycling system that can not only realize greenhouse rainwater recycling but also clean photovoltaic panels at the same time, and provide the following technical solutions. Figure 1-Figure 16 Make a detailed description: Example

[0024] The photovoltaic greenhouse rainwater recovery system includes an inclined glass rain-receiving surface 1, where the glass rain-receiving surface 1 refers to the glass roof of the greenhouse. Although some greenhouses are made of plastic film, the present application is designed based on the greenhouse with a glass top, and also includes a plurality of partition frames 3 that divide the glass rain-receiving surface 1 into a plurality of strip-shaped rain-receiving surfaces 2. Considering the load-bearing capacity of the greenhouse, the partition frames 3 are made of plastic and fixed to the glass rain-receiving surface 1. The specific fixing method can be to use screws and nuts to lock them, and then apply waterproof glue to the gaps to achieve reinforcement and sealing.

[0025] At the same time, the strip rain-receiving surface 2 is divided into a first water storage area 4, a second water storage area 5 and a third water storage area 6 from the inclined upper end downward, wherein the inclined upper sections of the second water storage area 5 and the third water storage area 6 are both overhead-mounted with photovoltaic panels; please refer to Figure 3 , Figure 4 The photovoltaic panel here is fixed to the side of the partition frame 3 by screws, but the bottom is not in contact with the glass rain-receiving surface 1. The reason for this design is to prevent rain from eroding the components on the back of the photovoltaic panel for a long time, and the overhead setting can ensure that the back of the photovoltaic panel has good ventilation and heat dissipation conditions. It should be additionally explained that the photovoltaic panels here are installed at intervals on the top of the photovoltaic greenhouse. This method can space out sun-loving and shade-loving plants (that is, shade-loving plants are planted under the photovoltaic panels to reduce the intensity and time of sunlight exposure), which can bring diversity to plant planting.

[0026] See also Figure 3 , Figure 4 , Figure 6 and Figure 7 In order to store water and clean the photovoltaic panels irregularly during the rainy season (the rainy season is mostly in summer, with heavy dust and strong light. Cleaning the dirt on the surface of the photovoltaic panels in time can be beneficial to the operation of the photovoltaic panels and avoid the problem of excessive surface temperature of the photovoltaic panels caused by excessive dirt), a first water storage baffle 7 is rotatably provided between the first water storage area 4 and the second water storage area 5, and a second water storage baffle 8 is rotatably provided between the second water storage area 5 and the third water storage area 6, so that the first water storage baffle 7 and the second water storage baffle 8 can both be rotated and opened to release the rainwater above, and as Figure 6 , Figure 7 When the first water storage baffle 7 and the second water storage baffle 8 rotate downward, they will be restricted by the long inclined plate on the side to avoid hitting the photovoltaic panel, and this position allows rainwater to be poured on the upper surface of the photovoltaic panel. At the same time, in order to allow the first water storage baffle 7 and the second water storage baffle 8 to continue to operate next time, the first water storage baffle 7 and the second water storage baffle 8 can be reset after the accumulated rainwater is released.

[0027] See also Figure 3 , Figure 4 , Figure 6 and Figure 7 In order to achieve a better effect of cleaning the upper surface of the photovoltaic panel, a wheel groove 301 is constructed on the inner side of the length of the partition frame 3, and a rectangular frame 9 is arranged parallel to the upper side of the photovoltaic panel. The lower surface of the rectangular frame 9 is fixed with bristles 91 for brushing the upper surface of the photovoltaic panel. At the same time, the side of the rectangular frame 9 is rotatably installed with a wheel 92 rolling in the wheel groove 301. The wheel groove 301 provides guidance for the movement of the wheel 92 and ensures that the rectangular frame 9 moves parallel to the photovoltaic panel. Specifically: the rectangular frame 9 and the first water storage baffle 7, and the rectangular frame 9 and the second water storage baffle 8 are connected by a transmission rod 93, and the transmission rod 93 One end is hinged to the first water storage baffle 7 or the second water storage baffle 8, and the other end is hinged to the rectangular frame 9, so that when the first water storage baffle 7 or the second water storage baffle 8 rotates downward to release rainwater, the rectangular frame 9 drives the bristles 91 to brush the upper surface of the photovoltaic panel. In this way, after the rainwater is used to irrigate and rinse the upper surface of the photovoltaic panel, it can be brushed once by the bristles 91, and then when the first water storage baffle 7 and the second water storage baffle 8 are reset, the photovoltaic panel can be brushed for the second time, and this operation can be continued for many times on a rainy day. This design not only realizes the collection of rainwater, but also realizes the brushing and cleaning of the photovoltaic panel without the need for external force.

[0028] like Figures 3 to 5 As shown, in this embodiment, in order to realize the water storage of the first water storage area 4 and the second water storage area 5, the first water storage area 4 and the second water storage area 5 are composed of a pair of side baffles 10 fixed to the side of the partition frame 3 and a positive baffle 11 fixed to the strip rain receiving surface 2 and located between two adjacent water storage areas. When rain drops on the strip rain receiving surface 2, it will be collected in the water storage area surrounded by the side baffles 10 and the positive baffles 11. At the same time, the positive baffle 11 is "U"-shaped and is connected and fixed to the two side baffles 10 and the side of the partition frame 3, and the first water storage baffle 7 or the second water storage baffle 8 is correspondingly rotatably installed on The positive water baffle 11 is used to block the "U"-shaped opening. The "U"-shaped opening here refers to the water outlet formed by the positive water baffle 11. When the first water storage baffle 7 and the second water storage baffle 8 rotate to their own tops close to the photovoltaic panels, water can be poured on the upper surface of the photovoltaic panels. At the same time, in order to support the first water storage baffle 7 and the second water storage baffle 8, it also includes a hydraulic strut 12 with one end hinged to the side of the first water storage baffle 7 or the second water storage baffle 8 and the other end hinged to the side of the side water baffle 10. It should be noted here that the hydraulic strut 12 here is the same as the strut that opens the trunk of a car.

[0029] like Figures 3 to 5As shown, in this embodiment, in order to realize the water storage of the third water storage area 6, the third water storage area 6 includes a baffle plate 61 fixed to the side and end of the partition frame 3 and a receiving box 62 integrally constructed with the baffle plate 61 and fixed to the partition frame 3. The receiving box 62 is connected to the lower end of the strip rain receiving surface 2 without leaking water. The specific connection method is also to use a waterproof glue coating method. At the same time, it should be noted that the partition frame 3 and the strip rain receiving surface are not the key structures for providing the receiving box 62 with force. The receiving box 62 is mainly supported by the bracket located below it ( Figure 1 (visible in the figure).

[0030] like Figures 1 to 5 As shown, in this embodiment, in order to realize the storage of rainwater after collection, a siphon elbow 13 is fixed on one side of the lower end of the strip rain receiving surface 2 of the enclosure plate 61, and a sewage pipe 14 is connected and fixed to the bottom of the receiving box 62. When rainwater is collected in the receiving box 62, dust and gravel will be deposited in the sewage pipe 14, and the lower end of the sewage pipe 14 is threadedly connected with a sealing plug 15. Unscrewing the sealing plug 15 can discharge the gravel. It should be noted that the end of the siphon elbow 13 located in the receiving box 62 does not contact the inner bottom wall of the receiving box 62, so that when When the water level overflows the curved top of the siphon bend 13, the gravel at the bottom will not be sucked away, and the rainwater will flow from the multiple siphon bends 13 to the same connected and fixed water collecting pipe 25, and the water collecting pipe 25 is arranged horizontally and one end is connected to a water collecting tank 26 located on the ground through a pipe, so that the rainwater is finally collected in the water collecting tank 26. When it is necessary to pay special attention, in order to balance the air pressure in the water collecting pipe 25, the other end of the water collecting pipe 25 is fixedly connected to an L-shaped pipe 27, and the L-shaped pipe 27 also has an overflow function. When the flow rate is too large, it can overflow here. Please refer to Figure 2 It should also be noted that a portion of the water collecting tank 26 can be flipped open to facilitate disinfection of rainwater, such as adding disinfectants, etc. The specific operation depends on the type of plants actually planted, and will not be elaborated here.

[0031] like Figures 3 to 7 and Fig. 9 , Fig.10 As shown, in this embodiment, in order to realize the reset of the first water storage baffle 7 and the second water storage baffle 8 after flipping, the water storage capacity of the second water storage area 5 is twice the water storage capacity of the first water storage area 4, and the water storage capacity of the third water storage area 6 is 1.5-2 times the water storage capacity of the second water storage area 5. A hollow square sleeve 94 is fixed to the lower end surface of the rectangular frame 9, and a slide plate 95 is slidably inserted in the hollow square sleeve 94. A foam float 96 is fixed to the free end of the slide plate 95. The surface of the hollow square sleeve 94 is threadedly connected with a bolt 97 whose end abuts on the slide plate 95. When the first water storage baffle 7 is opened, the hydraulic support rod 12 is shortened as the water flow impacts, and the first water storage baffle 7 is gradually laid flat to Figure 7In the middle style, water flows into the second water storage area 5, the water level of the second water storage area 5 rises instantly, and pushes the foam float 96 to move upward, and at the same time drives the rectangular frame 9 to move upward. The movement of the rectangular frame 9 drives the transmission rod 93 to drive the first water storage baffle 7 to rotate around the rotation point and gradually reset. It should be noted that after the hydraulic strut 12 rotates through a certain angle, it will provide a reset thrust for the first water storage baffle 7 (this is the same as the principle of closing the trunk of a car. After rotating through a certain angle, the strut changes from a resistance force to an auxiliary thrust). At the same time, in order to better adapt to the range of buoyancy adjustment, the foam float 96 here can be moved in the hollow square sleeve 94 through the sliding slide 95, and then locked by the bolt 97 to adjust the length, thereby realizing the position adjustment of the foam float 96.

[0032] like Figures 11 to 16 As shown, in this embodiment, in order to accurately control the release of water after the water storage reaches a certain level, the first water storage baffle 7 and the second water storage baffle 8 are both configured with a buckle groove 33, and a buckle plate 34 that buckles the buckle groove 33 is slidably provided on the positive water baffle 11 (see Fig.11 and Fig.14 The buckle plate 34 here is buckled by the buckle groove 33 through the buckle claws constructed thereon to realize the buckle function). At the same time, a buoyancy box 35 is fixed at the center of the buckle plate 34. The buoyancy box 35 is a power element for pushing the buckle plate 34 to move along the buckle groove 33 under the buoyancy of water. Please refer to Fig.13 It should be noted that the buckle plate 34 here is implemented by a square rod sliding through the buckle plate 34 to guide the buckle plate 34 to slide along the positive water baffle 11, and after the water level reaches the predetermined water storage volume, the first water storage baffle 7 can be opened, and the upper end of the buckle groove 33 is divided into a release area 36. When the buckle claw of the buckle plate 34 reaches the release area 36, ​​it can no longer buckle the first water storage baffle 7 or the second water storage baffle 8. Under the impact of the water flow, the first water storage baffle 7 and the second water storage baffle 8 will be impacted open. At the same time, in order to allow the first water storage baffle 7 and the second water storage baffle 8 to be re-fastened to the buckle groove 33 by the buckle claw on the buckle plate 34 when resetting, a mounting plate 37 is fixed to the side of the positive water baffle 11, and a trigger rod 38 is slid through the thickness of the mounting plate 37 (the trigger rod 38 is Fig.16 In the state, it is resisted by the first water storage baffle 7 or the second water storage baffle 8), a support rod 39 for supporting the bottom of the pinch plate 34 is provided below the mounting plate 37, the support rod 39 is connected to the trigger rod 38 through a push plate 40, and the push plate 40 is connected to the mounting plate 37 through a spring 41 providing tension (the tension is to pull the push plate 40 to move toward the mounting plate 37), please refer to Figures 13 to 16When the buoyancy box 35 pushes the buckle plate 34 to move along the buckle groove 33 and makes the buckle claw reach the disengagement area 36, ​​the first water storage baffle 7 and the second water storage baffle 8 will be impacted and opened by the water flow, and the trigger rod 38 will no longer be affected by the first water storage baffle 7 or the second water storage baffle 8. Under the pulling force of the spring 41, the support rod 39 has a tendency to move in the direction of the water flow and is placed at the bottom of the buckle plate 34. As the water flow continues to flow out, the buoyancy of the buoyancy box 35 disappears, and the buckle plate 34 is supported by the support rod 39 and will not fall. As the first water storage baffle 7 or the second water storage baffle 8 is reset, the buckle claw on the buckle plate 34 gradually falls into the disengagement area 36. At the same time, the support rod 39 gradually loses its support for the buckle plate 34. When the support rod 39 no longer supports the buckle plate 34, the buckle claw on the buckle plate 34 falls into the buckle groove 33. Please refer to Fig.16 The top of the buckle groove 33 (that is, the bottom of the release area 36) is set to transition inward in an arc shape. Once the buckle claw falls into it, it can slide into the buckle groove 33, and then slide downward along the buckle groove 33 under the action of gravity to achieve secondary buckling. Example

[0033] This embodiment adds the following technical solutions on the basis of embodiment 1: Figures 3 to 8 As shown, the water retaining surface of the positive water retaining plate 11 is configured with an inclined angle (specifically as Figure 8 ) and a sewage outlet 16 is constructed on the side of the partition frame 3, and the sewage outlet 16 is located at the lower end of the inclination angle. A plugging plate 18 for blocking the sewage outlet 16 is rotatably installed on the side water retaining plate 10 through a shaft rod 17. A hinge seat 19 is fixed on the rectangular frame 9. The plugging plate 18 can rotate around the shaft rod 17 to close the sewage outlet 16 in a free state. The upper end of the plugging plate 18 is hinged with a first hinge rod 20, and the hinge seat 19 is hinged with a second hinge rod 21. The first hinge rod 20 is hinged with the free end of the second hinged rod 21. When the rectangular frame 9 moves downward, it will pull the second hinged rod 21 and the first hinged rod 20, and drive the blocking plate 18 to rotate around the shaft 17 to open the sewage outlet 16. Due to the existence of the inclination angle, the remaining water containing gravel will flow out of the sewage outlet 16 from here carrying the gravel. This design can avoid the problem of silt accumulation on the rain-affected surface of the glass on the top of the greenhouse caused by the convex surface design of the partition frame 3. Example

[0034] This embodiment adds the following technical solutions on the basis of Embodiment 1 and Embodiment 2: Figures 3 to 8As shown, a connecting port 22 is constructed on the other side of the rectangular frame 9 corresponding to the sewage outlet 16, and the connecting port 22 is aligned with the sewage outlet 16 of the adjacent rectangular frame 9 and the number of rectangular frames 9 is an even number. The reason for designing an even number is that it can be set symmetrically, so it is only necessary to design the inclination angles of all the positive water retaining plates 11 on a single side to be continuous, so that the mud and sand in the rectangular frame 9 that is not located on the side can be gradually discharged to the outer rectangular frame 9 and finally discharged to the outside. In order to better optimize this function, a steel wire rope 23 is fixedly connected to the upper end of the plugging plate 18, and a rope ring 24 is constructed at the lower end of the steel wire rope 23, so that pulling the rope ring 24 can drive the plugging plate 18 to rotate around the shaft 17 to open the sewage outlet 16. This design enables the technical solution to have the ability to manually open the sewage outlet 16, and it is only necessary to rely on a tool to hook the rope ring 24 and pull the steel wire rope 23. It should be noted that the side of the plugging plate 18 facing the sewage outlet 16 is a rubber surface, so that the sealing of the sewage outlet 16 can be ensured. Example

[0035] This embodiment adds the following technical solutions on the basis of Embodiments 1 to 3: Figure 1 and Figure 2 As shown, the inclined upper ends of multiple rectangular frames 9 are fixed to the same water collecting trough 28, and the water collecting trough 28 is connected to each rectangular frame 9 through the opened notch 29. The end side of the water collecting trough 28 is fixedly connected with a hard pipe 30 extending into the water collecting box 26, and the end of the hard pipe 30 is connected with a water pump placed in the water collecting box 26. The water pump actively pumps water into the water collecting trough 28, and the surface of the photovoltaic panel can be actively cleaned in rainless weather. During operation, it is only necessary to turn on the water pump so that water gradually flows from the water collecting trough 28 to the first water storage area 4 and the second water storage area 5, so as to clean the photovoltaic panel. This design scheme optimizes the basic scheme, obtains the function of actively cleaning the photovoltaic panel, and greatly improves the working efficiency of the photovoltaic panel.

[0036] like Figure 1 and Figure 2 As shown, a photovoltaic greenhouse includes a photovoltaic greenhouse rainwater recovery system according to any one of claims 1-9, and also includes a greenhouse bracket 31 and a pipe bracket 32. The greenhouse bracket 31 is used to fix and support the glass rain-receiving surface 1, and the pipe bracket 32 ​​is used to support and fix the water collecting pipe 25.

Claims

1. A photovoltaic greenhouse rainwater recovery system, comprising an inclined glass rain-receiving surface (1), characterized in that: It also includes a plurality of partition frames (3) for partitioning the glass rain-receiving surface (1) into a plurality of strip-shaped rain-receiving surfaces (2); The strip-shaped rain-receiving surface (2) is divided into a first water storage area (4), a second water storage area (5) and a third water storage area (6) from the inclined upper end downwards, wherein the inclined upper sections of the second water storage area (5) and the third water storage area (6) are both overhead-mounted with photovoltaic panels; A first water storage baffle (7) is rotatably provided between the first water storage area (4) and the second water storage area (5), and a second water storage baffle (8) is rotatably provided between the second water storage area (5) and the third water storage area (6). Both the first water storage baffle (7) and the second water storage baffle (8) can be rotatably opened to release rainwater from above, so that rainwater is sprinkled on the upper surface of the photovoltaic panel and reset after the accumulated rainwater is released; The length of the partition frame (3) is structured with a wheel groove (301) on the inner side, and a rectangular frame (9) is arranged above the photovoltaic panel in parallel, and bristles (91) for brushing the upper surface of the photovoltaic panel are fixed on the lower surface of the rectangular frame (9), and wheels (92) that roll in the wheel groove (301) are rotatably mounted on the side of the rectangular frame (9), and the rectangular frame (9) and the second water storage baffle (8) are connected via a transmission rod (93), one end of the transmission rod (93) is hinged to the first water storage baffle (7) or the second water storage baffle (8), and the other end is hinged to the rectangular frame (9), so that when the first water storage baffle (8) or the second water storage baffle (7) rotates downward to release rainwater, the rectangular frame (9) is driven to drive the bristles (91) to brush the upper surface of the photovoltaic panel.

2. The photovoltaic greenhouse rainwater recovery system according to claim 1 is characterized in that: The first water storage area (4) and the second water storage area (5) are each composed of a pair of side water baffles (10) fixed to the side of the partition frame (3) and a front water baffle (11) fixed to the strip rain receiving surface (2) and located between two adjacent water storage areas. The front water baffle (11) is in a "U" shape and is connected and fixed to the two side water baffles (10) and the side of the partition frame (3). The first water storage baffle (7) or the second water storage baffle (8) is correspondingly rotatably mounted on the front water baffle (11) and is used to block the "U"-shaped opening. It also includes a hydraulic support rod (12) one end of which is hinged to the side of the first water storage baffle (7) or the second water storage baffle (8) and the other end of which is hinged to the side of the side water baffle (10).

3. The photovoltaic greenhouse rainwater recovery system according to claim 1 is characterized in that: The third water storage area (6) comprises a baffle plate (61) fixed to the side and end of the partition frame (3) and a receiving box (62) integrally constructed with the baffle plate (61) and fixed to the partition frame (3); the receiving box (62) is connected to the lower end edge of the strip rain receiving surface (2) and is watertight.

4. The photovoltaic greenhouse rainwater recovery system according to claim 3 is characterized in that: A siphon elbow (13) is fixed to one side of the baffle plate (61) located at the lower end of the strip rain receiving surface (2), and a sewage pipe (14) is connected and fixed to the bottom of the receiving box (62), and a sealing plug (15) is threadedly connected to the lower end of the sewage pipe (14).

5. The photovoltaic greenhouse rainwater recovery system according to claim 1 is characterized in that: The water storage capacity of the second water storage area (5) is twice that of the first water storage area (4), and the water storage capacity of the third water storage area (6) is 1.5-2 times that of the second water storage area (5). A hollow square sleeve (94) is fixed to the lower end surface of the rectangular frame (9), and a slide plate (95) is slidably inserted in the hollow square sleeve (94). A foam float (96) is fixed to the free end of the slide plate (95). A bolt (97) whose end abuts against the slide plate (95) is threadedly connected to the surface of the hollow square sleeve (94). The first water storage baffle (7) and the second water storage baffle (8) are both constructed with buckle grooves (33). The positive water baffle (1 1) A buckle plate (34) for buckling the buckle groove (33) is slidably provided on the upper side, a buoyancy box (35) is fixed at the center of the buckle plate (34), the upper end of the buckle groove (33) is divided into a release area (36), a mounting plate (37) is fixed on the side of the positive water retaining plate (11), a trigger rod (38) is slidably penetrated through the thickness of the mounting plate (37), a supporting rod (39) for supporting the bottom of the buckle plate (34) is provided below the mounting plate (37), the supporting rod (39) and the trigger rod (38) are connected via a push plate (40), and the push plate (40) and the mounting plate (37) are connected via a spring (41) for providing tension.

6. The photovoltaic greenhouse rainwater recovery system according to claim 2, characterized in that: The water retaining surface of the front water retaining plate (11) is configured with an inclination angle toward the side of the partition frame (3), and a sewage outlet (16) is configured on the side of the partition frame (3), and the sewage outlet (16) is located at the lower end of the inclination angle. A plugging plate (18) for blocking the sewage outlet (16) is rotatably mounted on the side water retaining plate (10) via a shaft (17). A hinge seat (19) is fixed on the rectangular frame (9), and the plugging plate (18) can be rotated around the shaft (17) to close the sewage outlet (16) in a free state. A first hinged rod (20) is hingedly connected to the upper end of the plugging plate (18), and a second hinged rod (21) is hingedly connected to the hinge seat (19). The free ends of the first hinged rod (20) and the second hinged rod (21) are hingedly connected to each other.

7. The photovoltaic greenhouse rainwater recovery system according to claim 6, characterized in that: A connecting opening (22) is formed on the other side of the rectangular frame (9) corresponding to the sewage outlet (16), the connecting opening (22) is aligned with the sewage outlet (16) of the adjacent rectangular frame (9), and the number of rectangular frames (9) is an even number; a steel wire rope (23) is fixedly connected to the upper end of the blocking plate (18), and a rope ring (24) is formed at the lower end of the steel wire rope (23), so that the rope ring (24) can be pulled to drive the blocking plate (18) to rotate around the shaft (17) to open the sewage outlet (16).

8. The photovoltaic greenhouse rainwater recovery system according to claim 4, characterized in that: The plurality of siphon bends (13) are connected and fixed on the same water collecting pipe (25); the water collecting pipe (25) is arranged horizontally and one end of the water collecting pipe is connected to a water collecting box (26) located on the ground through a pipeline; the other end of the water collecting pipe (25) is fixedly connected to an L-shaped pipe (27).

9. The photovoltaic greenhouse rainwater recovery system according to claim 1, characterized in that: The inclined upper ends of the plurality of rectangular frames (9) are fixed to the same water collecting trough (28); the water collecting trough (28) is connected to each rectangular frame (9) via a notch (29); the end side of the water collecting trough (28) is fixedly connected to a hard pipe (30) extending into the water collecting tank (26); the end of the hard pipe (30) is connected to a water pump placed in the water collecting tank (26).

10. A photovoltaic greenhouse, comprising the photovoltaic greenhouse rainwater recovery system according to any one of claims 1 to 9, characterized in that: It also includes a greenhouse support (31) and a pipe support (32), wherein the greenhouse support (31) is used to fix and support the glass rain-receiving surface (1), and the pipe support (32) is used to support and fix the water collecting pipe (25).

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