Portable field artificial rainfall simulation device

Abstract

The invention relates to the technical field of rainfall simulation, and discloses a portable field artificial rainfall simulation device which comprises a connecting rod, and the outer wall of the connecting rod is fixedly connected with a fixing block used for supporting other structures; the second limiting mechanism is mounted on the connecting rod and used for limiting a connected structure; the spraying mechanism is mounted on the second limiting mechanism and is used for simulating rainfall; the first limiting mechanisms are mounted at the two ends of the connecting rod and used for limiting the connecting rod; the lifting mechanism is mounted on the lower surface of the first limiting mechanism and used for adjusting the rainfall height; the lifting mechanism comprises a first connecting pipe. The rotating sleeve is rotated to drive the threaded rod to move, the first sliding block slides in the first connecting pipe, movement of the threaded rod is limited, the first connecting block is driven to move through movement of the threaded rod, the second connecting block is driven to move through movement of the threaded rod, and then the effect that the height is adjusted to be used in different terrains is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of simulated rainfall, in particular to a portable field artificial simulated rainfall device. Background Art

[0002] As global climate change intensifies, extreme weather events are occurring more frequently. For example, climate phenomena such as extreme rainfall and sudden drought-flood cycles have profoundly impacted agricultural production, soil quality, and water resource management. Therefore, the ability to simulate these extreme climate events has become particularly important. Simulated rainfall experiments are a key means of evaluating soil erosion mechanisms, runoff characteristics, and vegetation impacts. Existing rainfall simulation equipment has significant limitations: indoor devices are bulky and difficult to move; simple field sprinklers have unstable rainfall intensities and poor simulation quality; and portable equipment is highly fixed and cannot adapt to diverse terrains.

[0003] Many existing rainfall simulators are bulky and heavy, making them difficult to move and transport. Portability is crucial in field environments, as farmers and researchers often need to conduct experiments and apply their findings in different locations. Heavy equipment not only increases labor intensity but can also lead to higher transportation costs.

[0004] Traditional equipment typically features a simple support design, often relying on stable ground support, and lacking height adjustment. On uneven surfaces, the equipment suffers from poor stability and is prone to collapse or sliding. Existing equipment generally fails to account for these uneven surfaces, limiting its usability.

[0005] Existing water extraction and delivery system designs often rely on fixed flow rates and single pressures, making them unable to accommodate the diverse demands of real-world applications. Many devices' water supply systems lack flexibility, resulting in excessive or insufficient water flow, impacting spraying effectiveness. Furthermore, delivery pipes often malfunction due to clogged impurities, leading to experimental interruptions and inaccurate data. Furthermore, many devices fail to adjust spray intensity based on changes in water pressure, making it impossible to precisely control rainfall intensity and simulate diverse rainfall patterns. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a portable field artificial rainfall simulation device, which solves the problems of the prior artificial rainfall simulation device in terms of portability, spraying uniformity, height adjustment and rainfall intensity simulation.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a portable outdoor artificial rainfall simulation device, comprising:

[0008] A connecting rod, the outer wall of which is fixedly connected to a fixing block for supporting other structures;

[0009] A second limiting mechanism, which is installed on the connecting rod and is used to limit the connected structure;

[0010] A spray mechanism, which is installed on the second limiting mechanism and is used to simulate rainfall;

[0011] A first limiting mechanism, which is installed at both ends of the connecting rod and is used to limit the connecting rod;

[0012] A lifting mechanism, which is installed on the lower surface of the first limiting mechanism and is used to adjust the rainfall height;

[0013] The lifting mechanism includes a first connecting tube, a first sliding block is slidably connected to the interior of the first connecting tube, a threaded rod is fixedly connected to the upper surface of the first sliding block, one end of the threaded rod is fixedly connected to the first connecting block, a rotating sleeve is threadedly connected to the outer wall of the threaded rod, and the lower surface of the rotating sleeve is rotatably connected to the upper surface of the first connecting tube;

[0014] A supporting mechanism, which is installed on the outer wall of the lifting mechanism and is used to support the lifting mechanism to maintain balance;

[0015] The water delivery mechanism is installed on one side of the first limiting mechanism and is used to pump water and deliver it to the spraying mechanism.

[0016] Preferably, the second limiting mechanism includes a limit box, the outer wall of the limit box is fixedly connected to one end of the connecting rod, the upper surface of the limit box is slidably connected to a baffle, the lower surface of the baffle is fixedly connected to a third sliding block, the outer wall of the third sliding block is slidably connected to the inside of the limit box, one end of the third sliding block is fixedly connected to a second spring, and one end of the second spring is fixedly connected to the inner wall of the limit box.

[0017] Preferably, the spray mechanism includes a spray pipe, the outer wall of the spray pipe is fixedly connected to a limit plate, the outer wall of the limit plate is slidably connected to the inside of the limit box, the outer wall of the spray pipe is fixedly connected to a sprinkler, and the outer wall of the spray pipe is fixedly connected to a water inlet pipe.

[0018] Preferably, the first limiting mechanism includes a second connecting block, the lower surface of the second connecting block is fixedly connected to the upper surface of the first connecting block, the outer wall of the second connecting block is fixedly connected to the limiting tube, the interior of the limiting tube is slidingly connected to the connecting rod and the outer wall of the fixed block, the interior of the limiting tube is slidingly connected with the first limiting block, the lower surface of the first limiting block is fixedly connected to the second sliding block, the outer wall of the second sliding block is slidingly connected to the interior of the limiting tube, the outer wall of the first limiting block is slidingly connected to the interior of the fixed block, one side of the outer wall of the first limiting block is fixedly connected to a first spring, and the other end of the first spring is fixedly connected to the inner wall of the limiting tube.

[0019] Preferably, the support mechanism includes a connecting frame, the inner wall of the connecting frame is fixedly connected to the outer wall of the limit box, the inner wall of the connecting frame is rotatably connected to the second connecting tube, the interior of the second connecting tube is slidably connected to a sliding rod, one end of the sliding rod is rotatably connected to a fourth connecting block, and the outer wall of the fourth connecting block is fixedly connected to the first support plate.

[0020] Preferably, the interior of the sliding rod is rotatably connected to a threaded block, the outer wall of the threaded block is threadedly connected to a second limiting block, and the second limiting block is slidably connected to the outer wall of the second connecting pipe.

[0021] Preferably, the water delivery mechanism includes a hose, one end of the hose is fixedly connected to a filter cover, the other end of the hose is fixedly connected to a variable frequency pump booster pump, the outer wall of the variable frequency pump booster pump is fixedly connected to a fixing frame, the output end of the variable frequency pump booster pump is fixedly connected to a delivery pipe, the outer wall of the delivery pipe is fixedly connected to a connecting pipe, and one end of the connecting pipe is arranged at one end of the water inlet pipe.

[0022] Preferably, the outer wall of the fixing frame is fixedly connected to a third connecting block, and the interior of the third connecting block is slidably connected to a first ground nail.

[0023] Preferably, the outer wall of the delivery pipe is slidably connected to a limiting frame, and the lower surface of the limiting frame is fixedly connected to the upper surface of the second connecting block.

[0024] Preferably, a second support plate is fixedly connected to the lower surface of the first connecting pipe, and a second ground nail is fixedly connected to the lower surface of the second support plate.

[0025] The present invention provides a portable outdoor artificial rainfall simulation device, which has the following beneficial effects:

[0026] 1. The present invention drives the threaded rod to move by rotating the rotating sleeve, so that the first sliding block slides inside the first connecting tube, limiting the movement of the threaded rod. The movement of the threaded rod drives the first connecting block to move and drives the second connecting block to move, thereby achieving the effect of adjusting the height for use in different terrains.

[0027] 2. The present invention drives the third sliding block to move by pulling the baffle to squeeze the second spring, so that the limit box opens, and then pulls the spray pipe to drive the limit plate to slide in the limit box, and removes the spray pipe. The first limit block is driven to slide out of the fixed block by pulling the second sliding block, and the connecting rod is rotated to drive the fixed block to rotate in the limit tube, so that the limit tube is taken out, thereby achieving the effect of convenient disassembly and carrying.

[0028] 3. The present invention pulls the second connecting tube to rotate on the connecting frame, drives the sliding rod and the first support plate to move, and then pulls the threaded block to move, so that the threaded block drives the sliding rod to slide in the second connecting tube, so that the sliding rod rotates on the fourth connecting block and makes the first support plate contact with the ground, thereby achieving the supporting effect.

[0029] 4. The present invention starts the variable frequency pump booster pump to pump out water through a hose and transport it to the inside of the delivery pipe. The water can be filtered through a filter cover to prevent clogging. The water is connected to the water inlet pipe through a connecting pipe to transport the water to the spray pipe. The water pumping volume of the variable frequency pump booster pump is controlled to increase the internal pressure of the delivery pipe, and the water is quickly transported to the spray pipe through the connecting pipe. The water spray volume and raindrop size of the sprinkler are controlled by changes in internal pressure to achieve the effect of simulating different rainfall intensities. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A perspective view of the present invention;

[0031] Figure 2 is a schematic diagram of a second support plate of the present invention;

[0032] Figure 3 It is a cross-sectional view of the limiting tube of the present invention;

[0033] Figure 4 is a cross-sectional view of a first connecting pipe of the present invention;

[0034] Figure 5 is a cross-sectional view of a second connecting pipe of the present invention;

[0035] Figure 6 A schematic diagram of a connecting rod according to the present invention;

[0036] Figure 7 It is a cross-sectional view of the limit box of the present invention;

[0037] Figure 8 Schematic diagram of the fixing frame of the present invention.

[0038] Among them, 1. Connecting rod; 2. Lifting mechanism; 201. First connecting pipe; 202. Rotating sleeve; 203. Threaded rod; 204. First connecting block; 205. First sliding block; 3. First limiting mechanism; 301. Second connecting block; 302. First limiting block; 303. Second sliding block; 304. First spring; 305. Limiting pipe; 4. Spraying mechanism; 401. Water inlet pipe; 402. Spraying pipe; 403. Sprayer; 404. Limiting plate; 5. Second limiting mechanism; 501. Limiting box; 502. Baffle; 503. Second spring Spring; 504, third sliding block; 6, water delivery mechanism; 601, fixing frame; 602, variable frequency pump booster pump; 603, third connecting block; 604, first ground nail; 605, hose; 606, filter cover; 607, delivery pipe; 608, connecting pipe; 7, limiting frame; 8, supporting mechanism; 801, connecting frame; 802, second connecting pipe; 803, fourth connecting block; 804, first support plate; 805, sliding rod; 806, threaded block; 807, second limiting block; 9, second support plate; 10, second ground nail; 11, fixing block. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. 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 making creative efforts are within the scope of protection of the present invention.

[0040] Please see the attached Figure 1 -Attached Figure 8 The embodiment of the present invention provides a portable outdoor artificial rainfall simulation device, comprising:

[0041] Connecting rod 1, the outer wall of connecting rod 1 is fixedly connected with fixed block 11 for supporting other structures; the second limiting mechanism 5 is installed on the connecting rod 1 for limiting the connected structure; the second limiting mechanism 5 includes a limiting box 501, the outer wall of the limiting box 501 is fixedly connected to one end of the connecting rod 1, the upper surface of the limiting box 501 is slidably connected with a baffle 502, the lower surface of the baffle 502 is fixedly connected with a third sliding block 504, the outer wall of the third sliding block 504 is slidably connected to the inside of the limiting box 501, and the third One end of the sliding block 504 is fixedly connected to the second spring 503, and one end of the second spring 503 is fixedly connected to the inner wall of the limit box 501; the spray mechanism 4 is installed on the second limit mechanism 5 and is used to simulate rainfall; the spray mechanism 4 includes a spray pipe 402, the outer wall of the spray pipe 402 is fixedly connected to the limit plate 404, the outer wall of the limit plate 404 is slidably connected to the inside of the limit box 501, the outer wall of the spray pipe 402 is fixedly connected to the sprinkler 403, and the outer wall of the spray pipe 402 is fixedly connected to the water inlet pipe 401;

[0042] Specifically, by pulling the baffle 502 to move, the baffle 502 drives the third sliding block 504 to slide inside the limit box 501, so that the third sliding block 504 squeezes the second spring 503, and by pushing the spray pipe 402, the limit plate 404 is driven to move, so that the limit plate 404 is inserted into the interior of the limit box 501, and the second spring 503 pushes the third sliding block 504 to slide inside the limit box 501, so that the third sliding block 504 drives the baffle 502 to reset, and the baffle 502 blocks the limit plate 404, thereby limiting the spray pipe 402, and water enters the interior of the spray pipe 402 through the water inlet pipe 401, and is sprayed out through the sprinkler 403, thereby achieving the effect of simulating rainfall.

[0043] The first limiting mechanism 3 is installed at both ends of the connecting rod 1 and is used to limit the connecting rod 1; the first limiting mechanism 3 includes a second connecting block 301, the lower surface of the second connecting block 301 is fixedly connected to the upper surface of the first connecting block 204, the outer wall of the second connecting block 301 is fixedly connected to the limiting tube 305, the interior of the limiting tube 305 is slidably connected to the outer wall of the connecting rod 1 and the fixed block 11, the interior of the limiting tube 305 is slidably connected to the first limiting block 302, the lower surface of the first limiting block 302 is fixedly connected to the second sliding block 303, the outer wall of the second sliding block 303 is slidably connected to the inside of the limiting tube 305, the outer wall of the first limiting block 302 is slidably connected to the inside of the fixed block 11, one side of the outer wall of the first limiting block 302 is fixedly connected to the first spring 304, and the other end of the first spring 304 is fixedly connected to the inner wall of the limiting tube 305;

[0044] Specifically, the connecting rod 1 is pushed to drive the fixed block 11 to move, so that the connecting rod 1 and the fixed block 11 are inserted into the interior of the limiting tube 305, and the first limiting block 302 is driven to move by pulling the second sliding block 303, so that the first limiting block 302 squeezes the first spring 304, and the fixing block 11 is driven to rotate inside the limiting tube 305 by rotating the connecting rod 1, and then the second sliding block 303 is released, so that the first spring 304 pushes the first limiting block 302 to move and insert into the interior of the fixed block 11, thereby fixing the connecting rod 1 and the fixed block 11.

[0045] The lifting mechanism 2 is mounted on the lower surface of the first limiting mechanism 3 and is used to adjust the rainfall height. The lifting mechanism 2 includes a first connecting tube 201, a first sliding block 205 being slidably connected to the interior of the first connecting tube 201, a threaded rod 203 being fixedly connected to the upper surface of the first sliding block 205, one end of the threaded rod 203 being fixedly connected to the first connecting block 204, a rotating sleeve 202 being threadedly connected to the outer wall of the threaded rod 203, and the lower surface of the rotating sleeve 202 being rotatably connected to the upper surface of the first connecting tube 201; a second support plate 9 being fixedly connected to the lower surface of the second support plate 9, and a second ground spike 10 being fixedly connected to the lower surface of the second ground spike 10;

[0046] Specifically, by rotating the rotating sleeve 202 on the outer wall of the threaded rod 203, the threaded rod 203 moves in the rotating sleeve 202, and the movement of the threaded rod 203 drives the first sliding block 205 to move, so that the first sliding block 205 slides inside the first connecting tube 201, and then the threaded rod 203 is limited by the first sliding block 205, and the movement of the threaded rod 203 drives the first connecting block 204 to move, so that the first connecting block 204 drives the second connecting block 301 to move, thereby achieving the effect of adjusting the height, and the second support plate 9 is driven to move by pushing the first connecting tube 201, so that the second support plate 9 drives the second ground nail 10 to be inserted into the ground, thereby supporting the first connecting tube 201.

[0047] The supporting mechanism 8 is mounted on the outer wall of the lifting mechanism 2 and is used to support the lifting mechanism 2 to maintain balance. The supporting mechanism 8 includes a connecting frame 801, the inner wall of the connecting frame 801 is fixedly connected to the outer wall of the limit box 501, the inner wall of the connecting frame 801 is rotatably connected to the second connecting tube 802, the interior of the second connecting tube 802 is slidably connected to a sliding rod 805, one end of the sliding rod 805 is rotatably connected to a fourth connecting block 803, and the outer wall of the fourth connecting block 803 is fixedly connected to the first supporting plate 804; the interior of the sliding rod 805 is rotatably connected to a threaded block 806, the outer wall of the threaded block 806 is threadedly connected to a second limit block 807, and the second limit block 807 is slidably connected to the outer wall of the second connecting tube 802;

[0048] Specifically, by pulling the second connecting tube 802 to rotate on the connecting frame 801, the sliding rod 805 and the first support plate 804 are driven to move, and then the threaded block 806 is pulled to move, so that the threaded block 806 drives the sliding rod 805 to slide in the second connecting tube 802, so that the sliding rod 805 rotates on the fourth connecting block 803 and the first support plate 804 contacts the ground, and the second limit block 807 is moved by rotating the threaded block 806 in the second limit block 807, so that the second limit block 807 is fitted with the outer wall of the second connecting tube 802, thereby fixing the sliding rod 805.

[0049] The water delivery mechanism 6 is installed on one side of the first limiting mechanism 3, and is used to pump water and deliver it to the spraying mechanism 4; the water delivery mechanism 6 includes a hose 605, one end of the hose 605 is fixedly connected to the filter cover 606, and the other end of the hose 605 is fixedly connected to the variable frequency pump booster pump 602, the outer wall of the variable frequency pump booster pump 602 is fixedly connected to the fixing frame 601, the output end of the variable frequency pump booster pump 602 is fixedly connected to the delivery pipe 607, the outer wall of the delivery pipe 607 is fixedly connected to the connecting pipe 608, and one end of the connecting pipe 608 is arranged at one end of the water inlet pipe 401; the outer wall of the fixing frame 601 is fixedly connected to the third connecting block 603, and the inside of the third connecting block 603 is slidably connected to the first ground nail 604; the outer wall of the delivery pipe 607 is slidably connected to the limiting frame 7, and the lower surface of the limiting frame 7 is fixedly connected to the upper surface of the second connecting block 301;

[0050] Specifically, the variable frequency pump booster pump 602 is moved and placed on the ground by pulling the fixing frame 601, moved by pressing the first ground nail 604, and slid into the ground by the third connecting block 603. By placing the filter cover 606 into the pool, the variable frequency pump booster pump 602 is started to pump water out through the hose 605 and transport it to the inside of the delivery pipe 607. The water can be filtered by the filter cover 606 to prevent blockage. The connecting pipe 608 is connected to the water inlet pipe 401 to transport the water to the sprinkler pipe 402. The water pumping volume of the variable frequency pump booster pump 602 is controlled to increase the internal pressure of the delivery pipe 607, and the water is quickly transported to the sprinkler pipe 402 through the connecting pipe 608. The water spraying volume and raindrop size of the sprinkler 403 are controlled by the change in internal pressure to achieve the effect of simulating different rainfall intensities. The delivery pipe 607 can be supported by the limit frame 7.

[0051] Working principle: First, push the connecting rod 1 to drive the fixed block 11 to move, so that the connecting rod 1 and the fixed block 11 are inserted into the interior of the limiting tube 305, and the first limiting block 302 is driven to move by pulling the second sliding block 303, so that the first limiting block 302 squeezes the first spring 304, and the fixing block 11 is driven to rotate inside the limiting tube 305 by rotating the connecting rod 1, and then the second sliding block 303 is released, so that the first spring 304 pushes the first limiting block 302 to move and insert into the interior of the fixed block 11, thereby fixing the connecting rod 1 and the fixed block 11, and the second supporting plate 9 is driven to move by pushing the first connecting tube 201, so that the second supporting plate 9 drives the second ground nail 10 to be inserted into the ground, thereby fixing the first ground nail 10. The first connecting pipe 201 is supported by the support, and the baffle 502 is moved by pulling the baffle 502, so that the baffle 502 drives the third sliding block 504 to slide inside the limit box 501, so that the third sliding block 504 squeezes the second spring 503, and drives the limit plate 404 to move by pushing the spray pipe 402, so that the limit plate 404 is inserted into the limit box 501, and the third sliding block 504 is pushed to slide inside the limit box 501 by the second spring 503, so that the third sliding block 504 drives the baffle 502 to reset, and blocks the limit plate 404 by the baffle 502, thereby limiting the spray pipe 402, and pulling the second connecting pipe 802 to rotate on the connecting frame 801, driving the sliding rod 805 and The first support plate 804 moves, and then the threaded block 806 is pulled to move, so that the threaded block 806 drives the sliding rod 805 to slide in the second connecting tube 802, so that the sliding rod 805 rotates on the fourth connecting block 803 and the first support plate 804 contacts the ground. The second limit block 807 is moved by rotating the threaded block 806 in the second limit block 807, and then the second limit block 807 is fitted with the outer wall of the second connecting tube 802 to fix the sliding rod 805. The rotating sleeve 202 is rotated on the outer wall of the threaded rod 203, so that the threaded rod 203 moves in the rotating sleeve 202, and the first sliding block 205 is driven to move by the movement of the threaded rod 203, so that the first sliding block 20 The first connecting pipe 201 slides inside, and the threaded rod 203 is limited by the first sliding block 205. The movement of the threaded rod 203 drives the first connecting block 204 to move, and the first connecting block 204 drives the second connecting block 301 to move, thereby achieving the effect of adjusting the height. The variable frequency pump booster pump 602 is moved and placed on the ground by pulling the fixing frame 601. The first ground nail 604 is pressed to move it, and the third connecting block 603 is slid into the ground. The filter cover 606 is placed in the pool, and the variable frequency pump booster pump 602 is started to pump water out through the hose 605 and transport it to the inside of the delivery pipe 607. The water can be filtered by the filter cover 606 to achieve the effect of preventing blockage.Connecting the connecting pipe 608 to the water inlet pipe 401, water is delivered to the sprinkler pipe 402, where it is sprayed out through the sprinkler 403, thereby achieving the effect of simulating rainfall. By controlling the water pumping capacity of the variable frequency pump booster pump 602, the internal pressure of the delivery pipe 607 is increased, and the water is quickly delivered to the sprinkler pipe 402 through the connecting pipe 608. The change in internal pressure controls the water spraying capacity and raindrop size of the sprinkler 403, achieving the effect of simulating different rainfall intensities.

[0052] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A portable outdoor artificial rainfall simulation device, characterized in that: include: A connecting rod (1), wherein the outer wall of the connecting rod (1) is fixedly connected to a fixing block (11) for supporting other structures; A second limiting mechanism (5), which is mounted on the connecting rod (1) and is used to limit the connected structure; A spray mechanism (4), which is mounted on the second limiting mechanism (5) and is used to simulate rainfall; A first limiting mechanism (3), which is installed at both ends of the connecting rod (1) and is used to limit the connecting rod (1); A lifting mechanism (2) is mounted on the lower surface of the first limiting mechanism (3) and is used to adjust the rainfall height; The lifting mechanism (2) comprises a first connecting tube (201), the interior of the first connecting tube (201) is slidably connected to a first sliding block (205), the upper surface of the first sliding block (205) is fixedly connected to a threaded rod (203), one end of the threaded rod (203) is fixedly connected to the first connecting block (204), the outer wall of the threaded rod (203) is threadedly connected to a rotating sleeve (202), and the lower surface of the rotating sleeve (202) is rotatably connected to the upper surface of the first connecting tube (201); A supporting mechanism (8) is installed on the outer wall of the lifting mechanism (2) and is used to support the lifting mechanism (2) to maintain balance; A water delivery mechanism (6) is installed on one side of the first limiting mechanism (3) and is used to pump water and deliver it to the spraying mechanism (4).

2. A portable outdoor artificial rainfall simulation device according to claim 1, characterized in that: The second limiting mechanism (5) includes a limiting box (501), an outer wall of the limiting box (501) is fixedly connected to one end of the connecting rod (1), an upper surface of the limiting box (501) is slidably connected to a baffle (502), a lower surface of the baffle (502) is fixedly connected to a third sliding block (504), an outer wall of the third sliding block (504) is slidably connected to the interior of the limiting box (501), one end of the third sliding block (504) is fixedly connected to a second spring (503), and one end of the second spring (503) is fixedly connected to the inner wall of the limiting box (501).

3. A portable outdoor artificial rainfall simulation device according to claim 1, characterized in that: The spray mechanism (4) comprises a spray pipe (402), the outer wall of the spray pipe (402) is fixedly connected to a limit plate (404), the outer wall of the limit plate (404) is slidably connected to the interior of a limit box (501), the outer wall of the spray pipe (402) is fixedly connected to a sprayer (403), and the outer wall of the spray pipe (402) is fixedly connected to a water inlet pipe (401).

4. The portable outdoor artificial rainfall simulation device according to claim 1, characterized in that: The first limiting mechanism (3) comprises a second connecting block (301), the lower surface of the second connecting block (301) is fixedly connected to the upper surface of the first connecting block (204), the outer wall of the second connecting block (301) is fixedly connected to the limiting tube (305), the interior of the limiting tube (305) is slidably connected to the outer wall of the connecting rod (1) and the fixed block (11), the interior of the limiting tube (305) is slidably connected to the first limiting block (302), the lower surface of the first limiting block (302) is fixedly connected to the second sliding block (303), the outer wall of the second sliding block (303) is slidably connected to the interior of the limiting tube (305), the outer wall of the first limiting block (302) is slidably connected to the interior of the fixed block (11), one side of the outer wall of the first limiting block (302) is fixedly connected to the first spring (304), and the other end of the first spring (304) is fixedly connected to the inner wall of the limiting tube (305).

5. The portable outdoor artificial rainfall simulation device according to claim 1, characterized in that: The support mechanism (8) comprises a connecting frame (801), the inner wall of the connecting frame (801) is fixedly connected to the outer wall of the limit box (501), the inner wall of the connecting frame (801) is rotatably connected to a second connecting tube (802), the interior of the second connecting tube (802) is slidably connected to a sliding rod (805), one end of the sliding rod (805) is rotatably connected to a fourth connecting block (803), and the outer wall of the fourth connecting block (803) is fixedly connected to a first support plate (804).

6. The portable outdoor artificial rainfall simulation device according to claim 5, characterized in that: The interior of the sliding rod (805) is rotatably connected to a threaded block (806), the outer wall of the threaded block (806) is threadedly connected to a second limiting block (807), and the second limiting block (807) is slidably connected to the outer wall of the second connecting pipe (802).

7. The portable outdoor artificial rainfall simulation device according to claim 1, characterized in that: The water delivery mechanism (6) comprises a hose (605), one end of the hose (605) is fixedly connected to a filter cover (606), the other end of the hose (605) is fixedly connected to a variable frequency pump booster pump (602), the outer wall of the variable frequency pump booster pump (602) is fixedly connected to a fixing frame (601), the output end of the variable frequency pump booster pump (602) is fixedly connected to a delivery pipe (607), the outer wall of the delivery pipe (607) is fixedly connected to a connecting pipe (608), and one end of the connecting pipe (608) is arranged at one end of the water inlet pipe (401).

8. The portable outdoor artificial rainfall simulation device according to claim 7, characterized in that: The outer wall of the fixing frame (601) is fixedly connected to a third connecting block (603), and the interior of the third connecting block (603) is slidably connected to a first ground nail (604).

9. The portable outdoor artificial rainfall simulation device according to claim 7, characterized in that: The outer wall of the delivery pipe (607) is slidably connected to a limiting frame (7), and the lower surface of the limiting frame (7) is fixedly connected to the upper surface of the second connecting block (301).

10. The portable outdoor artificial rainfall simulation device according to claim 1, characterized in that: The lower surface of the first connecting pipe (201) is fixedly connected to a second support plate (9), and the lower surface of the second support plate (9) is fixedly connected to a second ground nail (10).

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