A sand table teaching aid for garden design

Abstract

The present invention relates to the technical field of garden design, and specifically to a garden design sand table teaching aid, including a sand table and a bracket for carrying the sand table, a top frame is arranged above the bracket, a fluorescent lamp capable of arc movement is arranged inside the top frame, a driving assembly for driving the fluorescent lamp to move is arranged on the top of the top frame, two through pipes are arranged on both sides of the bracket, a plurality of straight pipes are evenly connected on one side of the two through pipes close to each other, a plurality of rotating water handles are rotatably connected to the tops of the plurality of straight pipes, a water tank is fixedly connected to the bottom of the bracket, and a water supply assembly for filling water into the two through pipes is arranged at the bottom of the water tank. It not only has the traditional sand table display function, but also integrates multiple functions such as sunshine simulation, rainfall simulation, and automatic filter cleaning. These functions are interconnected through sophisticated mechanical design and water circulation system to form a highly integrated multifunctional teaching tool.

Description

Technical Field

[0001] The invention relates to the technical field of garden design, in particular to a garden design sand table teaching aid. Background Art

[0002] In the field of garden design, sunshine and drainage are two crucial considerations. Sunlight not only affects the growth of plants and the visual effects of the landscape, but is also directly related to the comfort and activity experience of tourists in the garden. The drainage system is an important infrastructure to ensure that the garden can quickly remove the accumulated water in the rainy season or rainstorm weather, avoid flooding, and protect the safety of garden facilities and vegetation. Therefore, how to fully consider and simulate these two factors in the early stage of garden design has become a common concern of garden educators and designers. Traditional garden design teaching mainly relies on two-dimensional drawings and oral explanations, which makes it difficult to intuitively show the changes in sunshine and drainage effects. In order to make up for this deficiency, sand table teaching aids have gradually been introduced into garden design teaching in recent years. Sand table teaching aids present the garden design plan in a three-dimensional way in the form of miniature landscapes, so that students can more intuitively understand the design ideas and spatial layout.

[0003] For example, the patent application with the prior art announcement number CN213070337U discloses a garden design sandbox teaching aid that is easy to carry and use, belonging to the technical field of garden design, including a base and an outer shell, the inner wall of the outer shell is fixedly installed with a partition, the outer surface of the partition is fixedly installed with a first bearing, the interior of the first bearing is rotatably installed with a threaded column through a rotating shaft, one end of the threaded column passes through and extends to the outside of the outer shell and is fixedly installed with a crank, the outer surface of the threaded column is threadedly installed with a moving block, and the outer surface of the moving block is fixedly installed with a lifting plate; this application is provided with a threaded column, a lifting plate, a handle and a latch, rotating the crank drives the threaded column to rotate, the threaded column rotates in the first bearing to drive the moving block to rise, and the rising of the moving block drives the sliding block to rise, thereby realizing the function of lifting the sandbox body, facilitating teachers to demonstrate in the sandbox body, expanding the scope of use of the teaching aid, and increasing the practicality of the teaching aid.

[0004] On the basis of existing technology, although the sand table teaching aids can flexibly adjust their height to meet the needs of different teaching demonstrations, in actual teaching applications, we find that it is often difficult to fully mobilize students' enthusiasm and understanding by relying solely on static sand table displays and teachers' verbal explanations, especially when it comes to complex and changeable sunlight design. When teachers try to explain how the change in solar altitude angle affects the growth of plants in the garden, the distribution of light and shadow, and the experience of tourists in different seasons and time periods, students may only be able to imagine based on text descriptions or limited diagrams. This abstract way of understanding not only increases the difficulty of students' understanding, but also limits their ability to explore and innovate. To this end, this application proposes a sand table teaching aid for garden design. Summary of the invention

[0005] The purpose of the present invention is to provide a garden design sand table teaching aid to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sand table teaching aid for garden design, comprising a sand table and a bracket for carrying the sand table, a top frame is arranged above the bracket, a fluorescent lamp that can move in an arc shape is arranged inside the top frame, a driving component for driving the fluorescent lamp to move is arranged on the top of the top frame, two through pipes are arranged on both sides of the bracket, a plurality of straight pipes are evenly connected on one side of the two through pipes close to each other, a plurality of rotating water handles are rotatably connected to the tops of the plurality of straight pipes, a water tank is fixedly connected to the bottom of the bracket, and a water supply component for filling water into the two through pipes is arranged at the bottom of the water tank.

[0007] Preferably, the drive assembly includes a reciprocating screw rotatably connected to the top of the top frame, the outer surface of the reciprocating screw is threadedly connected to a nut seat, an arc groove is opened inside the top frame, the inside of the arc groove is slidably connected to a connecting arc plate fixedly connected to the fluorescent lamp, and the bottom of the nut seat is fixedly connected to a plurality of multi-section telescopic rods, and the telescopic ends of the plurality of multi-section telescopic rods are rotatably connected to the top of the connecting arc plate.

[0008] Preferably, the water supply assembly includes a water pump fixedly connected to the bottom of the water tank, the input end of the water pump is connected to the inside of the water tank, the output end of the water pump is connected to a water pipe, the water pipe is connected to a through pipe, and the two through pipes are commonly connected by a converging pipe.

[0009] Preferably, water shells are fixedly connected to both sides of the top frame, the bottoms of the two water shells are connected to soft pipes, one end of the two soft pipes are fixedly connected to power water pipes, one end of the two power water pipes are fixedly connected to three-way valves, one of the three-way valves is connected to the water supply pipe, the other three-way valve is connected to a return pipe connected to the water tank, and the two three-way valves are connected to two through pipes.

[0010] Preferably, the inside of the two water shells are rotatably connected with a transmission rod, and the two transmission rods are fixedly connected to the reciprocating screw rod, the outer surfaces of the two transmission rods are fixedly connected with a plurality of water wheel blades, and the tops of the two water shells are connected with a top pipe.

[0011] Preferably, a mounting plate is fixedly connected to the interior of the water tank, and a filter is fixedly connected to the interior of the mounting plate.

[0012] Preferably, a rotating shaft is rotatably connected inside the filter screen, a scraper capable of contacting the filter screen is fixedly connected to the top of the rotating shaft, and collecting grooves are respectively provided at both ends of the mounting plate.

[0013] Preferably, one end of the reflux pipe is slidably connected to a piston rod adapted thereto, the bottom of the reflux pipe is connected to a drain pipe, the end of the piston rod away from the reflux pipe is fixedly connected to a straight groove plate, the bottom of the rotating shaft is fixedly connected to a rotating handle placed inside the straight groove plate, and the outer surface of the piston rod is sleeved with a reset spring for its own reset.

[0014] Preferably, both sides of the bracket are rotatably connected with a damping handle, and the damping handle is fixedly connected to the top frame.

[0015] Preferably, the bottoms of the plurality of rotating water handles are connected to a plurality of nozzles.

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

[0017] 1. Through multiple nozzles, the water flow is refined and simulated to rainy days, which can provide students with a close-to-real rainfall environment and help them better understand the knowledge of drainage systems, vegetation adaptability, and rainwater management in garden design. This intuitive experience helps to enhance students' practical ability and in-depth understanding of garden design. The power of the water pump can be adjusted to match different water flow rates to simulate various rainfall conditions from drizzle to heavy rain. This flexibility makes teaching more diversified and can cover more types of rainfall scenes to meet different teaching needs. When the water flows over the sand table, it will wash away the impurities or dust on the surface. These water flows then enter the water tank and are filtered through the filter. The setting of the filter effectively blocks dust and impurities from entering the water pump, avoiding damage to the water pump by these impurities.

[0018] 2. The system not only has the traditional sand table display function, but also integrates multiple functions such as sunshine simulation, rainfall simulation and automatic filter cleaning. These functions are interconnected through sophisticated mechanical design and water circulation system to form a highly integrated multifunctional teaching tool. Through the precise coordination of the driving components, the sunlight lamp can simulate the whole process from the sun rising in the east to the sun setting in the west, which greatly improves the authenticity of the simulation. This dynamic sunshine simulation helps students to more intuitively understand the impact of sunshine on garden design. The rainfall simulation system realizes accurate rainfall simulation of the sand table through components such as water pumps, water pipes, and power water pipes. At the same time, by adjusting the switch state of the three-way valve, it is also possible to realize the simultaneous testing of sunshine and rainfall, which further improves the complexity and authenticity of the simulation. The piston rod is driven by the water flow to move, and then the scraper is driven to slide on the surface of the filter, effectively removing the dust and impurities on the filter. The whole system cleverly uses the water flow pumped out by the water pump as a power source to drive multiple functions such as sunshine simulation, rainfall simulation and filter cleaning. This design not only improves energy efficiency, but also realizes the recycling of water resources. Students can personally participate in the simulation process of sunshine and rainfall by operating components such as three-way valves and damping handles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a first three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a second three-dimensional structure of the present invention;

[0021] Figure 3 It is a structural schematic diagram of removing the sandbox in the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the water delivery pipe in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the present invention without the bracket;

[0024] Figure 6 It is a structural schematic diagram of the present invention without the top frame;

[0025] Figure 7 It is a schematic diagram of the local structure of the top frame in the present invention;

[0026] Figure 8 For the present invention Figure 7 A schematic diagram of the structure enlargement in the middle;

[0027] Fig. 9 It is a schematic diagram of the cross-sectional structure of the top frame in the present invention;

[0028] Fig.10 It is a schematic diagram of the cross-sectional structure of the bracket in the present invention;

[0029] Fig.11 It is a structural schematic diagram of the mounting plate in the present invention;

[0030] Fig.12 It is a schematic diagram of the structure of the reflux pipe in the present invention;

[0031] Fig.13 For the present invention Fig.12 A magnified schematic diagram of the structure at B in the middle;

[0032] Fig.14 It is a schematic diagram of the cross-sectional structure of the reflux pipe in the present invention.

[0033] In the figure: 100, sand table; 101, bracket; 200, water tank; 201, water pump; 202, water pipe; 203, three-way valve; 204, power water pipe; 205, through pipe; 206, straight pipe; 207, rotating water handle; 208, nozzle; 209, confluence pipe; 300, top frame; 301, damping handle; 302, reciprocating screw rod; 303, nut seat; 304, connecting arc plate; 305, sunshine Lamp; 306, arc groove; 307, water shell; 308, transmission rod; 309, water wheel blade; 310, top pipe; 311, soft pipe; 312, multi-section telescopic rod; 400, mounting plate; 401, filter screen; 402, collecting tank; 403, return pipe; 404, discharge pipe; 405, piston rod; 406, straight groove plate; 407, rotating shaft; 408, rotating handle; 409, scraper; 410, reset spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 3The present invention provides a technical solution: a garden design sand table teaching aid, comprising a sand table 100 and a support 101 for carrying the sand table 100, wherein the sand table 100 can be of different garden designs, so as to be suitable for teaching different garden designs, two through pipes 205 are arranged on both sides of the support 101, and a plurality of straight pipes 206 are evenly connected on one side of the two through pipes 205 close to each other, and a plurality of rotating water handles 207 are rotatably connected to the tops of the plurality of straight pipes 206, and the plurality of rotating water handles 207 are rotatably connected to the tops of the plurality of straight pipes 206. On the straight pipe 206, the rotating water handle 207 can be rotated to adjust its position, and can be folded when not in use. The bottoms of the multiple rotating water handles 207 are connected to multiple nozzles 208. The multiple nozzles 208 can refine the water flow to simulate rainfall on rainy days. The bottom of the bracket 101 is fixedly connected to the water tank 200. The bottom of the water tank 200 is provided with a water supply component for filling water into the two through pipes 205. By setting the water supply component, water can be guided to the through pipes 205, thereby realizing the transportation of water flow, and it is also convenient for rainwater to flow back to the inside of the mounting plate 400.

[0036] For further information, see Figure 4 , Figure 5 as well as Figure 6 The water supply component includes a water pump 201 fixedly connected to the bottom of the water tank 200. The input end of the water pump 201 is connected to the inside of the water tank 200. The output end of the water pump 201 is connected to a water pipe 202. The water pipe 202 is connected to a through pipe 205. The two through pipes 205 are connected to a common confluence pipe 209. The water pump 201 can adjust its own power to match different water flow rates, thereby simulating different rainfall amounts.

[0037] Among them, see Figure 1 , Fig.10 as well as Fig.11 The water flow flushing the sandbox 100 may flush out the impurities or dust in the sandbox 100. The interior of the water tank 200 is fixedly connected with a mounting plate 400, and the interior of the mounting plate 400 is fixedly connected with a filter 401. The filter 401 can block dust and impurities and filter the water flow, thereby reducing damage to the water pump 201.

[0038] Specifically, the water pump 201 is turned on to draw water from the water tank 200 and transport it to the inside of the water pipe 202, so that the water pipe 202 is connected to the through pipe 205 so that the water flows into the inside of the multiple straight pipes 206, and the multiple rotating water handles 207 are rotated to be evenly placed above the sand table 100. The water flows evenly from the multiple nozzles 208 to the sand table 100 through the confluence pipe 209. The water washes the sand table 100 and finally enters the inside of the water tank 200 and passes through the filter 401.

[0039] In summary, by refining the water flow and simulating rain on rainy days through multiple nozzles 208, students can be provided with a rainfall environment close to reality, helping them to better understand the knowledge of drainage systems, vegetation adaptability, and rainwater management in garden design. This intuitive experience helps to enhance students' practical ability and in-depth understanding of garden design. The power of the water pump 201 can be adjusted to match different water flow rates to simulate various rainfall conditions from drizzle to heavy rain. This flexibility makes teaching more diversified, covering more types of rainfall scenes and meeting different teaching needs. When the water flow flushes the sand table 100, it will wash away the impurities or dust on the surface. These water flows then enter the water tank 200 and are filtered through the filter 401. The setting of the filter 401 effectively blocks dust and impurities from entering the water pump 201, avoiding damage to the water pump by these impurities.

[0040] Example 2: Please refer to Figure 7 , Figure 8 as well as Fig. 9 The present invention also provides a technical solution, which is different from the technical solution of the first embodiment: a sand table teaching aid for garden design, a top frame 300 is arranged above the bracket 101, and damping handles 301 are rotatably connected to both sides of the bracket 101, and the damping handle 301 is fixedly connected to the top frame 300, and there is a certain damping force between the damping handle 301 and the bracket 101, which can change the position of the top frame 300 and fix it at the same time, and a fluorescent lamp 305 that can move in an arc is arranged inside the top frame 300, and the fluorescent lamp 305 can simulate the sun to generate light and irradiate the sand table 100, and a driving component for driving the fluorescent lamp 305 to move is arranged on the top of the top frame 300, and the driving component can be effectively driven to move by setting the fluorescent lamp 305 to simulate the sun rising in the east and setting in the west, thereby improving the authenticity of the simulation and thus improving the accuracy of the test.

[0041] The driving assembly includes a reciprocating screw rod 302 rotatably connected to the top of the top frame 300, and the outer surface of the reciprocating screw rod 302 is threadedly connected to a nut seat 303. The continuous rotation of the reciprocating screw rod 302 can drive the nut seat 303 to reciprocate left and right, thereby sustainably simulating the duration of sunshine. An arc groove 306 is provided inside the top frame 300, and the interior of the arc groove 306 is slidably connected to a connecting arc plate 304 fixedly connected to the fluorescent lamp 305. A plurality of multi-section telescopic rods 312 are fixedly connected to the bottom of the nut seat 303, and the telescopic ends of the plurality of multi-section telescopic rods 312 are all rotatably connected to the top of the connecting arc plate 304, and the plurality of multi-section telescopic rods 312 can be connected to the connecting arc plate 304 to pull the connecting arc plate 304 to stably slide inside the arc groove 306, wherein the arc groove 306 is arc-shaped to more realistically simulate the sunshine environment.

[0042] Furthermore, in order to facilitate driving the reciprocating screw 302 to rotate, water shells 307 are fixedly connected to both sides of the top frame 300, and the bottoms of the two water shells 307 are connected to soft pipes 311, one end of the two soft pipes 311 is fixedly connected to the power water pipe 204, one end of the two power water pipes 204 is fixedly connected to the three-way valves 203, one three-way valve 203 is connected to the water pipe 202, and the other three-way valve 203 is connected to the return pipe 403 connected to the water tank 200, and the two three-way valves 203 are connected to the two through pipes 205, the interiors of the two water shells 307 are rotatably connected to the transmission rods 308, and the two transmission rods 308 are fixedly connected to the reciprocating screw 302, the outer surfaces of the two transmission rods 308 are fixedly connected to a plurality of water wheel blades 309, and the tops of the two water shells 307 are connected to the top pipe 310.

[0043] Among them, a three-way valve 203 can connect the water pipe 202 with the power water pipe 204 so that the water flows through the water shell 307 to drive the reciprocating screw 302 to rotate. At the same time, the water flows through the two power water pipes 204 to form a closed loop, so that the water finally flows back to the inside of the water tank 200.

[0044] For a more efficient simulation, another three-way valve 203 can be manipulated to connect another power water pipe 204 with another through pipe 205, so that the water flowing through the water shell 307 flows back to the through pipe 205 to perform a simulated rain test on the sand table 100, thereby achieving simultaneous testing of sunshine and rainfall. At the same time, the cooperation between the two can reduce the sunshine transmittance of the fluorescent lamp 305, thereby simulating a sunshine environment under low visibility.

[0045] For further information, see Fig.12 , Fig.13 as well as Fig.14 The filter 401 is internally rotatably connected with a rotating shaft 407, and a scraper 409 that can contact the filter 401 is fixedly connected to the top of the rotating shaft 407. The filter 401 can be cleaned by setting the scraper 409. Collection grooves 402 are respectively provided at both ends of the mounting plate 400. Under the action of the scraper 409, the impurities on the filter 401 can be swept into the collecting groove 402 for storage, thereby ensuring the stable use of the filter 401.

[0046] One end of the return pipe 403 is slidably connected to a piston rod 405 adapted thereto, the piston end of the piston rod 405 is connected to the interior of the return pipe 403, the bottom of the return pipe 403 is connected to a discharge pipe 404, the discharge pipe 404 can discharge the water flow placed in the return pipe 403, the end of the piston rod 405 away from the return pipe 403 is fixedly connected to a straight groove plate 406, and the straight groove plate 406 and the piston rod 405 cooperate with each other to reciprocate and continuously drive the rotating shaft 407 to rotate, and the bottom of the rotating shaft 407 The piston rod 405 is fixedly connected to a handle 408 placed inside the straight groove plate 406, and the outer surface of the piston rod 405 is sleeved with a reset spring 410 for its own reset. When the water flows back to the inside of the return pipe 403 through the through pipe 205, a part of the water flow is discharged through the through pipe 205, and the other part enters the inside of the return pipe 403 to continuously push the piston rod 405 to move over the discharge pipe 404 and then reset under the action of the reset spring 410, thereby forming a reciprocating motion of the piston rod 405.

[0047] It is worth mentioning that the water flow pumped out by the water pump 201 can be used to simulate rainfall on the sand table 100, and with the cooperation of the two three-way valves 203, the water flow pumped out by the water pump 201 can be converted into a rotational force that drives the reciprocating screw 302 to rotate, thereby realizing simulated sunshine. At the same time, the water flow after driving the reciprocating screw 302 to rotate can flow back into the return pipe 403 to drive the scraper 409 to rotate and clean the filter 401. At the same time, the water flow can first pass through the through pipe 205 and then flow back through the return pipe 403 to drive the scraper 409 to rotate and clean the filter 401. At this time, the water pressure in the return pipe 403 is relatively low, so that it pushes the piston rod 405 to move a small amount across the discharge pipe 404 and then quickly reset, thereby forming a complete reciprocating motion to drive the rotating shaft 407 to rotate continuously.

[0048] Specifically, when the sand table 100 is tested for sunlight, the water pipe 202 can be connected to the power water pipe 204 by controlling the three-way valve 203, so that the water flows continuously through the power water pipe 204 and the soft pipe 311 to the inside of the water shell 307, and the water flows continuously to hit the water wheel blade 309 to rotate the transmission rod 308, so that the water flows through the top pipe 310 to flow through another water shell 307 to the inside of another power water pipe 204, and when the transmission rod 308 rotates, it drives the reciprocating screw rod 302 to rotate and drives the nut seat 303 to move so that the multi-section telescopic rod 312 moves, so that the multi-section telescopic rod 312 pulls the connecting arc plate 304 to slide inside the arc groove 306, thereby changing the sunlight lamp 3 05 to simulate sunshine operation, and at the same time, the damping handle 301 can be pulled to rotate to change the angle between the top frame 300 and the sand table 100 to simulate sunshine at different longitudes and latitudes, and at the same time, another three-way valve 203 is controlled to connect the power water pipe 204 with the return pipe 403, so that water flows through the return pipe 403 to push the piston rod 405 to move and then be discharged from the discharge pipe 404 to the inside of the water tank 200, and when the piston rod 405 moves, it will drive the straight groove plate 406 to move and drive the handle 408 to rotate and drive the rotating shaft 407 to rotate so that the scraper 409 slides on the surface of the filter 401, and the dust and impurities placed on the filter 401 are scraped into the inside of the collection tank 402 for storage.

[0049] In summary, the system not only has the traditional sand table display function, but also integrates multiple functions such as sunshine simulation, rainfall simulation and automatic filter cleaning. These functions are interconnected through sophisticated mechanical design and water circulation system to form a highly integrated multifunctional teaching tool. Through the precise coordination of the driving components, the sunlight lamp 305 can simulate the whole process of the sun rising from the east to setting in the west, which greatly improves the authenticity of the simulation. This dynamic sunshine simulation helps students to more intuitively understand the impact of sunshine on garden design. The rainfall simulation system realizes the accurate rainfall simulation of the sand table 100 through components such as water pumps, water pipes, and power water pipes. At the same time, by adjusting the switch state of the three-way valve 203, it is also possible to realize the simultaneous testing of sunshine and rainfall, further improving the complexity and authenticity of the simulation. The piston rod 405 is driven by the water flow to move, and then the scraper 409 is driven to slide on the surface of the filter, effectively removing the dust and impurities on the filter. The whole system cleverly uses the water flow pumped out by the water pump 201 as a power source to drive multiple functions such as sunshine simulation, rainfall simulation and filter cleaning. This design not only improves the efficiency of energy utilization, but also realizes the recycling of water resources. Students can personally participate in the simulation process of sunshine and rainfall by operating components such as the three-way valve 203 and the damping handle 301.

[0050] Working principle: When in use, first place the sand table 100 inside the bracket 101. When the drainage capacity of the sand table 100 needs to be tested, the water pump 201 can be turned on to draw water from the water tank 200 and transport it to the inside of the water pipe 202. Then, the three-way valve 203 can be operated to connect the water pipe 202 with the through pipe 205 so that the water flows into the inside of the multiple straight pipes 206. The multiple rotating water handles 207 are rotated to be evenly placed above the sand table 100. The water flows through the confluence pipe 209 and is evenly sprayed from the multiple nozzles 208 onto the sand table 100. The water washes the sand table 100 and finally enters the inside of the water tank 200 and passes through the filter 401.

[0051] When it is necessary to perform sunshine detection on the sand table 100, the water delivery pipe 202 can be connected with the power water pipe 204 by controlling the three-way valve 203, so that the water flows continuously through the power water pipe 204 and the soft pipe 311 to the inside of the water shell 307, and the water flows continuously to impact the water wheel blades 309 to rotate the transmission rod 308, so that the water flows through the top pipe 310 to another water shell 307 to the inside of another power water pipe 204, and when the transmission rod 308 rotates, it will drive the reciprocating screw rod 302 to rotate and drive the nut seat 303 to move so that the multi-section telescopic rod 312 moves, so that the multi-section telescopic rod 312 pulls the connecting arc plate 304 to slide inside the arc groove 306, thereby changing the position of the fluorescent lamp 305, so that it simulates sunshine operation, and at the same time, the damping handle 301 can be pulled to rotate to change the angle between the top frame 300 and the sand table 100 to simulate sunshine at different longitudes and latitudes;

[0052] At the same time, another three-way valve 203 is operated to make the power water pipe 204 communicate with the return pipe 403, so that the water flows through the return pipe 403 to push the piston rod 405 to move and then be discharged from the discharge pipe 404 to the inside of the water tank 200. When the piston rod 405 moves, it will drive the straight groove plate 406 to move, drive the handle 408 to rotate, and drive the shaft 407 to rotate so that the scraper 409 slides on the surface of the filter 401, and the dust and impurities on the filter 401 are scraped into the inside of the collection tank 402 for storage;

[0053] At the same time, a three-way valve 203 is operated to connect the water supply pipe 202 with the power water pipe 204, and another three-way valve 203 is operated to connect the power water pipe 204 with the through pipe 205, thereby realizing simultaneous sunshine and drainage tests.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A garden design sand table teaching aid, comprising a sand table (100) and a support (101) for supporting the sand table, characterized in that: A top frame (300) is arranged above the support seat (101), a fluorescent lamp (305) capable of arc-shaped movement is arranged inside the top frame (300), a driving assembly for driving the fluorescent lamp (305) to move is arranged on the top of the top frame (300), two through pipes (205) are arranged on both sides of the support seat (101), a plurality of straight pipes (206) are evenly connected to the sides of the two through pipes (205) close to each other, and a plurality of rotating water handles (207) are rotatably connected to the tops of the plurality of straight pipes (206), a water tank (200) is fixedly connected to the bottom of the support seat (101), and a water supply assembly for filling water into the two through pipes (205) is arranged at the bottom of the water tank (200); The driving assembly comprises a reciprocating screw rod (302) rotatably connected to the top of the top frame (300); the outer surface of the reciprocating screw rod (302) is threadedly connected to a nut seat (303); an arc groove (306) is provided inside the top frame (300); a connecting arc plate (304) fixedly connected to the fluorescent lamp (305) is slidably connected inside the arc groove (306); a plurality of multi-section telescopic rods (312) are fixedly connected to the bottom of the nut seat (303); and the telescopic ends of the plurality of multi-section telescopic rods (312) are all rotatably connected to the top of the connecting arc plate (304); The water supply assembly comprises a water pump (201) fixedly connected to the bottom of the water tank (200); the input end of the water pump (201) is in communication with the interior of the water tank (200); the output end of the water pump (201) is in communication with a water delivery pipe (202); the water delivery pipe (202) is connected to a through pipe (205); and a converging pipe (209) is in communication between the two through pipes (205); Both sides of the top frame (300) are fixedly connected to water shells (307), the bottoms of the two water shells (307) are connected to soft pipes (311), one end of the two soft pipes (311) is fixedly connected to a power water pipe (204), one end of the two power water pipes (204) is fixedly connected to a three-way valve (203), one of the three-way valves (203) is connected to the water delivery pipe (202), the other of the three-way valves (203) is connected to a return pipe (403) connected to the water tank (200), and the two three-way valves (203) are connected to two through pipes (205); The interiors of the two water shells (307) are both rotatably connected to a transmission rod (308), and the two transmission rods (308) are fixedly connected to the reciprocating screw rod (302). The outer surfaces of the two transmission rods (308) are both fixedly connected to a plurality of water wheel blades (309), and the tops of the two water shells (307) are connected to a top pipe (310).

2. A garden design sand table teaching aid according to claim 1, characterized in that: A mounting plate (400) is fixedly connected to the interior of the water tank (200), and a filter screen (401) is fixedly connected to the interior of the mounting plate (400).

3. A garden design sand table teaching aid according to claim 2, characterized in that: The filter screen (401) is rotatably connected to a rotating shaft (407) inside, a scraper (409) capable of contacting the filter screen (401) is fixedly connected to the top of the rotating shaft (407), and collecting grooves (402) are respectively provided at both ends of the mounting plate (400).

4. A garden design sand table teaching aid according to claim 3, characterized in that: One end of the return pipe (403) is slidably connected to a piston rod (405) adapted thereto, the bottom of the return pipe (403) is connected to a drain pipe (404), one end of the piston rod (405) away from the return pipe (403) is fixedly connected to a straight groove plate (406), the bottom of the rotating shaft (407) is fixedly connected to a rotating handle (408) disposed inside the straight groove plate (406), and the outer surface of the piston rod (405) is sleeved with a reset spring (410) for reset.

5. The garden design sand table teaching aid according to claim 1, characterized in that: Both sides of the bracket (101) are rotatably connected to a damping handle (301), and the damping handle (301) is fixedly connected to the top frame (300).

6. The garden design sand table teaching aid according to claim 1, characterized in that: The bottoms of the plurality of rotating water handles (207) are all connected to a plurality of nozzles (208).

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