A sponge city rainwater penetration detection device

Abstract

The present invention relates to the technical field of penetration detection equipment, and specifically to a rainwater penetration detection device for a sponge city, including a displacement device, a driving motor is fixedly installed at the top front end of the displacement device, a worm is fixedly installed at the rear end center of the driving motor, and a support component is inserted into the internal thread of the displacement device. The displacement device includes an alignment ring, a threaded rod and a water penetration detection head, the water penetration detection head is fixedly installed at the bottom of the outer ring of the threaded rod, the alignment ring is rotatably installed at the top of the outer ring of the threaded rod, and the support component includes a synchronization device, a transmission device, a matching device and a positioning device. The synchronization device is symmetrically fixedly installed on the right side of the positioning device, the matching device is fixedly installed at the top bottom of the positioning device, and the transmission device is fixedly installed at the side end of the positioning device close to the synchronization device. Through the setting of the support component, the purpose of rapid cleaning of the feed screw and automatic opening and closing of the rainwater penetration detection device is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of penetration detection equipment, in particular to a rainwater penetration detection device for a sponge city. Background Art

[0002] Sponge city refers to a city that can adapt to environmental changes and deal with natural disasters caused by rainwater like a sponge, and has good "elasticity". It can also be called a "water-elastic city" and is a new generation of urban stormwater management concept. Specifically, sponge city realizes rainwater control and utilization on different underlying surfaces such as buildings and communities, urban roads, green spaces and squares, and urban water systems through urban planning, construction, and management, achieving multiple goals such as repairing water ecology and improving water environment.

[0003] Rainwater penetration detection devices are equipment used to evaluate the performance of different materials or structures under the action of rainwater penetration. These devices can simulate the natural rainwater penetration process to test the water penetration capacity, penetration rate, stability after water penetration and other problems that may be caused (such as soil erosion, structural damage, etc.) of various materials (such as soil, rock, textiles, building materials, etc.).

[0004] At present, when the existing rainwater penetration detection device is in use, it needs to go deep into the soil layer under the ground, and a large amount of soil will accumulate on the surface of the rainwater penetration detection probe and the feed rod after entering the soil, which will affect the feed rod when it is used again. As a result, the existing rainwater penetration detection device cannot perform the feed screw when in use to avoid quick cleaning and automatic opening or closing functions. Therefore, a device is needed to improve the above problem. Summary of the invention

[0005] In view of the problems in the prior art, the present invention provides a sponge city rainwater penetration detection device.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a sponge city rainwater penetration detection device, including a displacement device, a driving motor is fixedly installed on the top front end of the displacement device, a worm is fixedly installed on the rear end center of the driving motor, and a supporting component is inserted into the internal thread of the displacement device. The displacement device includes a positioning ring, a threaded rod and a water penetration detection head, the water penetration detection head is fixedly installed on the bottom of the outer ring of the threaded rod, and the positioning ring is rotatably installed on the top of the outer ring of the threaded rod. The supporting component includes a synchronization device, a transmission device, a matching device and a positioning device. The synchronization device is symmetrically fixedly installed on the right side of the positioning device, the matching device is fixedly installed on the top bottom of the positioning device, the transmission device is fixedly installed on the side end of the positioning device close to the synchronization device, and the transmission device is located between the two synchronization devices. The matching device includes a limit sleeve, a wire wheel and a supporting base plate, the limit sleeve is fixedly installed on the top of the supporting base plate, and the wire wheel is rotatably installed on the bottom of the side end of the supporting base plate.

[0007] Specifically, the synchronization device includes a special-shaped connecting rod, a first piston rod, a support frame, a U-shaped limiting sleeve, a second piston rod and an air cylinder. The special-shaped connecting rod is fixedly installed on the top end of the first piston rod, the first piston rod is slidably inserted inside the top end of the air cylinder, the air cylinder is fixedly installed on the support frame, the second piston rod is slidably inserted inside the bottom end of the air cylinder, and the U-shaped limiting sleeve is fixedly installed on the bottom end of the second piston rod.

[0008] Specifically, the transmission device includes a connecting rope, a first worm gear, a transmission gear, a support pad, an extension rod, a displacement base plate and a first spring. The first worm gear is fixedly mounted on the top of the transmission gear, the transmission gear is rotatably mounted on the top of the displacement base plate, the extension rod is fixedly mounted on both ends of the displacement base plate, the first spring is fixedly mounted on one end of the displacement base plate close to the first worm gear, the support pad is fixedly mounted on one end of the first spring away from the displacement base plate, and the connecting rope is fixedly mounted on the center of one end of the displacement base plate away from the support pad.

[0009] Specifically, the positioning device includes a second worm gear, a support bottom ring, a gear ring, a photoelectric sensor, an electromagnetic valve, a support bottom plate, a high-pressure nozzle, an extended top frame, a second spring and a guide sleeve. The photoelectric sensor is symmetrically fixedly installed on the top right side of the support bottom plate, the electromagnetic valve is symmetrically fixedly installed on the top of the support bottom plate, and the electromagnetic valve is located on the left side of the photoelectric sensor, the support bottom ring is fixedly installed on the top of the support bottom plate, and the support bottom ring is located between the two electromagnetic valves, the high-pressure nozzle symmetrically penetrates the support bottom ring and is connected to the electromagnetic valve, the gear ring and the second worm gear are rotatably installed on the top of the support bottom ring, and the second worm gear is located above the gear ring, the guide sleeve is equidistantly fixedly installed on the top of the extended top frame, the extended top frame is fixedly installed on the top of the support bottom ring, and the second spring is fixedly installed on both sides of the extended top frame.

[0010] Specifically, the threaded rod is threadedly inserted into the inner center of the second worm gear, the top end of the supporting base plate is connected to the bottom side end of the guide sleeve close to the photoelectric sensor, the top end of the connecting rope is connected to the bottom end of the alignment ring, and the supporting frame is symmetrically fixedly installed on the side end of the supporting base plate close to the photoelectric sensor.

[0011] Specifically, the support pad is symmetrically fixedly installed on the top of the support base plate near the photoelectric sensor, the end of the special-shaped connecting rod away from the first piston rod is connected to the top of the second spring, and the first worm gear and the transmission gear are respectively engaged with the second worm gear and the ring gear.

[0012] Specifically, the interior of the gas cylinder is arranged in a hollow state, and a closed cavity is formed between the first piston rod, the gas cylinder and the second piston rod. A groove is provided at the center of the top end of the U-shaped limit sleeve, and a 45° slope is provided at the top of one end of the groove close to the special-shaped connecting rod, and the U-shaped limit sleeve is aligned with the extension rod.

[0013] Specifically, a round rod is fixedly installed at the center of one end of the support pad close to the connecting rope, and the round rod is located at the center of the inner circle of the first spring, the inner wall of the guide sleeve fits the outer surface of the threaded rod, and a nylon brush is fixedly installed on the inner circle of the gear ring.

[0014] Specifically, the high-pressure nozzle is vertically aligned with the threaded rod, the electromagnetic valve is electrically connected to the photoelectric sensor, and a threaded hole is formed at the inner center of the second worm gear.

[0015] Specifically, the supporting base plate further comprises an extending base frame and a roller. The extending base frame is fixedly mounted on both sides of the bottom of the supporting base plate, and the roller is rotatably mounted on the bottom end of the extending base frame.

[0016] Beneficial effects of the present invention:

[0017] First, when the present invention is started, the driving motor can drive the second worm gear to rotate through the worm, so that the threaded rod can be inserted into the soil layer through the supporting bottom plate, and the second worm gear can continuously rotate to drive the threaded rod to move downward to different soil layers, so that the water penetration detection head can detect different soil layers, and when the threaded rod is reset upward, the second worm gear can drive the gear ring to rotate through the first worm gear and the transmission gear, so that the nylon brush inside the gear ring can clean the surface of the threaded rod, and water is sprayed onto the surface of the threaded rod through the high-pressure nozzle, so that the soil blocks can be washed away, the cleaning effect of the threaded rod surface is improved, and the threaded rod surface is quickly cleaned.

[0018] Secondly, when the threaded rod moves downward to the extreme position, the present invention can drive the first piston rod to enter the interior of the air cylinder through the special-shaped connecting rod, so that the U-shaped limit sleeve can be misaligned with the extension rod, so that the first spring can drive the first worm gear and the transmission gear to engage with the second worm gear and the ring gear respectively, and when the first spring drives the first worm gear and the transmission gear to engage with the second worm gear and the ring gear, it can also contact the photoelectric sensor, so that the electromagnetic valve can be started synchronously, and then, when the threaded rod is reset upward, the displacement base plate can be reset by pulling the connecting rope, so that the extension rod can be buckled in the U-shaped limit sleeve again, and the opening or closing work can be automated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the displacement device of the present invention from the front perspective;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the support component in the present invention from a front perspective;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the synchronization device in the present invention from the front perspective;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the transmission device of the present invention from the front perspective;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the matching device in the present invention from the front perspective;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the positioning device in the present invention from a front perspective;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure from the front perspective of the second embodiment of the support base plate in the present invention.

[0028] In the figure: 1-displacement device, 2-support component, 3-worm, 4-drive motor, 5-alignment ring, 6-threaded rod, 7-water penetration detection head, 8-synchronizing device, 9-transmission device, 10-matching device, 11-positioning device, 12-special-shaped connecting rod, 13-first piston rod, 14-support frame, 15-U-shaped limiting sleeve, 16-second piston rod, 17-air cylinder, 18-connecting rope, 19-first worm gear, 20-transmission Moving gear, 21-support pad, 22-extension rod, 23-displacement base plate, 24-first spring, 25-limit sleeve, 26-wire wheel, 27-support base plate, 28-second worm gear, 29-support bottom ring, 30-gear ring, 31-photoelectric sensor, 32-electromagnetic valve, 33-support base plate, 34-high pressure nozzle, 35-extension top frame, 36-second spring, 37-guide sleeve, 38-extension base frame, 39-roller. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0030] The present invention is further described below in conjunction with the accompanying drawings. Example 1

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a sponge city rainwater penetration detection device of the present invention includes a displacement device 1, a driving motor 4 is fixedly installed at the top front end of the displacement device 1, a worm 3 is fixedly installed at the rear end center of the driving motor 4, a support component 2 is inserted into the internal thread of the displacement device 1, the displacement device 1 includes a positioning ring 5, a threaded rod 6 and a water penetration detection head 7, the water penetration detection head 7 is fixedly installed at the bottom of the outer ring of the threaded rod 6, the positioning ring 5 is rotatably installed at the top of the outer ring of the threaded rod 6, the support component 2 includes a synchronization device 8, a transmission device 9, a matching device 10 and a positioning device 11, the synchronization device 8 is symmetrically fixedly installed on the right side of the positioning device 11, the matching device 10 is fixedly installed at the top bottom of the positioning device 11, the transmission device 9 is fixedly installed on the side end of the positioning device 11 close to the synchronization device 8, and the transmission device 9 is located between the two synchronization devices 8, the matching device 10 includes a limit sleeve 25, a wire wheel 26 and a support base plate 27, the limit sleeve 25 is fixedly installed at the top of the support base plate 27, and the wire wheel 26 is rotatably installed at the side end bottom of the support base plate 27.

[0032] like Figure 4 The synchronization device 8 includes a special-shaped connecting rod 12, a first piston rod 13, a support frame 14, a U-shaped limiting sleeve 15, a second piston rod 16 and an air cylinder 17. The special-shaped connecting rod 12 is fixedly installed on the top of the first piston rod 13, the first piston rod 13 is slidably inserted inside the top of the air cylinder 17, the air cylinder 17 is fixedly installed on the support frame 14, the second piston rod 16 is slidably inserted inside the bottom end of the air cylinder 17, and the U-shaped limiting sleeve 15 is fixedly installed on the bottom end of the second piston rod 16. When the U-shaped limiting sleeve 15 moves downward, the first spring 24 can drive the displacement base plate 23 to reset.

[0033] like Figure 5 The transmission device 9 includes a connecting rope 18, a first worm gear 19, a transmission gear 20, a support pad 21, an extension rod 22, a displacement base plate 23 and a first spring 24. The first worm gear 19 is fixedly mounted on the top of the transmission gear 20, and the transmission gear 20 is rotatably mounted on the top of the displacement base plate 23. The extension rod 22 is fixedly mounted on both ends of the displacement base plate 23. The first spring 24 is fixedly mounted on one end of the displacement base plate 23 close to the first worm gear 19. The support pad 21 is fixedly mounted on one end of the first spring 24 away from the displacement base plate 23. The connecting rope 18 is fixedly mounted on the center of one end of the displacement base plate 23 away from the support pad 21, and is aligned with the U-shaped limiting sleeve 15 through the extended portion of the extension rod 22, so that the extension rod 22 can be easily docked with the U-shaped limiting sleeve 15.

[0034] like Figure 7The positioning device 11 includes a second worm gear 28, a support bottom ring 29, a gear ring 30, a photoelectric sensor 31, an electromagnetic valve 32, a support bottom plate 33, a high-pressure nozzle 34, an extension top frame 35, a second spring 36 and a guide sleeve 37. The photoelectric sensor 31 is symmetrically fixedly installed on the top right side of the support bottom plate 33, the electromagnetic valve 32 is symmetrically fixedly installed on the top of the support bottom plate 33, and the electromagnetic valve 32 is located on the left side of the photoelectric sensor 31, and the support bottom ring 29 is fixedly installed on the top of the support bottom plate 33, and the support bottom ring 29 is located between the two electromagnetic valves 32. The high-pressure nozzle 34 symmetrically penetrates the support bottom ring 29 and is connected to the electromagnetic valve 32. The gear ring 30 and the second worm gear 28 are rotatably mounted on the top of the support bottom ring 29, and the second worm gear 28 is located above the gear ring 30. The guide sleeve 37 is equidistantly fixedly mounted on the top of the extension top frame 35. The extension top frame 35 is fixedly mounted on the top of the support bottom ring 29. The second spring 36 is fixedly mounted on both sides of the extension top frame 35. The high-pressure nozzle 34 is located at the top and bottom of the gear ring 30, so that the threaded rod 6 can be flushed twice to prevent impurities from remaining on the surface of the threaded rod 6.

[0035] The threaded rod 6 is threadedly inserted into the inner center of the second worm gear 28, the top of the support base plate 27 is connected to the bottom side end of the guide sleeve 37 close to the photoelectric sensor 31, the top of the connecting rope 18 is connected to the bottom end of the alignment ring 5, the support frame 14 is symmetrically fixedly installed on the side end of the support base plate 33 close to the photoelectric sensor 31, the support pad 21 is symmetrically fixedly installed on the top of the support base plate 33 close to the photoelectric sensor 31, the end of the special-shaped connecting rod 12 away from the first piston rod 13 is connected to the top of the second spring 36, the first worm gear 19 and the transmission gear 20 are respectively engaged with the second worm gear 28 and the gear ring 30, the interior of the air cylinder 17 is set in a hollow state, and the first piston A closed cavity is formed between the rod 13, the air cylinder 17 and the second piston rod 16, a groove is provided at the center of the top end of the U-shaped limit sleeve 15, and a 45° slope is provided at the top of the groove near the end of the special-shaped connecting rod 12, the U-shaped limit sleeve 15 is aligned with the extension rod 22, a round rod is fixedly installed at the center of one end of the support pad 21 near the connecting rope 18, and the round rod is located at the center of the inner ring of the first spring 24, the inner wall of the guide sleeve 37 fits with the outer surface of the threaded rod 6, a nylon brush is fixedly installed on the inner ring of the gear ring 30, the high-pressure nozzle 34 is vertically aligned with the threaded rod 6, the electromagnetic valve 32 is electrically connected to the photoelectric sensor 31, and a threaded hole is provided at the inner center of the second worm gear 28.

[0036] The working principle of embodiment 1 is as follows: when in use, the device is first moved to the designated test area, and then the drive motor 4 is started to drive the worm 3 to rotate, and the worm 3 is meshed with the second worm gear 28 to drive the second worm gear 28 to rotate, and the threaded rod 6 is threadedly inserted into the inner center of the second worm gear 28, so that when the second worm gear 28 rotates clockwise, the threaded rod 6 can be driven to move downward, and the threaded rod 6 is located in the inner center of the guide sleeve 37, so that the threaded rod 6 can be prevented from being skewed during displacement. Subsequently, when the threaded rod 6 passes through the supporting bottom plate 33 and enters the soil layer, a signal connection is established between the water penetration detection head 7 and the external detection terminal, so that the water penetration detection head 7 can be detected. The penetrating detection head 7 can transmit the moisture content of the soil layer to the detection terminal in real time, so as to record the permeability of the soil layer. Subsequently, the threaded rod 6 is driven by the second worm gear 28 to continuously move downward to the specified soil layer, so that different soil layers can be detected. When the threaded rod 6 moves downward to the limit position, it can drive the alignment ring 5 to squeeze the special-shaped connecting rod 12 and move downward to the limit position, so that the first piston rod 13 can enter the interior of the air cylinder 17, driving the second piston rod 16 and the U-shaped limiting sleeve 15 to move downward, so that the U-shaped limiting sleeve 15 can fall off the extension rod 22. At this time, the extension rod 22 will lose the restriction of the U-shaped limiting sleeve 15, and the elasticity of the first spring 24 will drive the positioning ring 5 to move downward. The displacement bottom plate 23 moves toward one end close to the second worm gear 28, so that the first worm gear 19 and the transmission gear 20 can mesh with the second worm gear 28 and the gear ring 30 respectively. At the same time, when the displacement bottom plate 23 moves to the extreme position, the extension rod 22 can be driven to fit with the photoelectric sensor 31, so that the photoelectric sensor 31 can start the electromagnetic valve 32, which is connected to the external water valve through the electromagnetic valve 32, so that when the electromagnetic valve 32 is started, the high-pressure nozzle 34 can spray water outward, and the high-pressure nozzle 34 can be aligned with the threaded rod 6 to start the drive motor 4, driving the worm 3 to rotate counterclockwise, so that the threaded rod 6 can be reset upward, and at the same time, the high-pressure nozzle 34 The water sprayed by the high-pressure nozzle 34 is arranged at the top and bottom of the gear ring 30 so that the soil stuck on the threaded rod 6 can be washed away, and when the second worm gear 28 rotates, the first worm gear 19 and the transmission gear 20 can be driven to rotate, and when the transmission gear 20 rotates, the gear ring 30 can be driven to rotate at the same time, so that when the gear ring 30 rotates, the nylon brush of the inner ring can be driven to brush out the soil residue remaining on the surface of the threaded rod 6. Subsequently, the surface of the threaded rod 6 is flushed by the high-pressure nozzle 34 above the gear ring 30, so that the soil residue not brushed off the surface of the threaded rod 6 can be flushed again, completing the overall cleaning of the threaded rod 6, and preventing the soil residue from entering the interior of the second worm gear 28 when the threaded rod 6 moves upward. At the same time, when the threaded rod 6 moves upward, the alignment ring 5 can be driven to disengage from the special-shaped connecting rod 12, and the elasticity of the second spring 36 can drive the special-shaped connecting rod 12 to reset upward, so that the second piston rod 16 can drive the U-shaped limit sleeve 15 to reset upward, and then, when the threaded rod 6 moves upward,The pulling connecting rope 18 can be driven to drive the displacement base plate 23 to move toward the end away from the second worm gear 28, so that the extension rod 22 can contact the U-shaped limit sleeve 15. A 45° slope is provided on the top surface of the U-shaped limit sleeve 15 close to the special-shaped connecting rod 12, so that the smoothness of the extension rod 22 passing through the U-shaped limit sleeve 15 can be improved. When the threaded rod 6 is completely reset upward, the displacement base plate 23 can be driven to move outward to the extreme position by pulling the connecting rope 18, so that the extension rod 22 can be snapped into the groove inside the U-shaped limit sleeve 15 again to complete the reset of the displacement base plate 23. When the device is in use, it is rotatably installed on the top of the outer ring of the threaded rod 6 through the alignment ring 5, so that the threaded rod 6 cannot drive the alignment ring 5 to rotate when it moves up and down. , so that the threaded rod 6 cannot drive the connecting rope 18 to coil when it rises or falls. At the same time, the bottom end of the connecting rope 18 is wrapped around the outer ring surface of the wire wheel 26, and the wire wheel 26 is aligned with the displacement base plate 23, so that when the connecting rope 18 is pulled, the displacement base plate 23 can be pulled outward with the wire wheel 26 as the base point, and the displacement base plate 23 is slidably sleeved on the round rod at the center of the side end of the support pad 21, so that the displacement base plate 23 can be ensured to move in a straight line, and the docking accuracy of the transmission gear 20 and the gear ring 30 can be improved. At the same time, when the first spring 24 drives the extension rod 22 to reset, it can drive the extension rod 22 to disengage from the photoelectric sensor 31, so that the electromagnetic valve 32 can be powered off in time, reducing water waste and completing the work. , Example 2

[0037] On the basis of Example 1, Figure 8 As shown, the support base plate 33 further includes an extension base frame 38 and a roller 39 . The extension base frame 38 is fixedly mounted on both sides of the bottom of the support base plate 33 , and the roller 39 is rotatably mounted on the bottom end of the extension base frame 38 .

[0038] When implementing this embodiment, by setting an extension base frame 38 and rollers 39 at the bottom end of the supporting base plate 33, the device can be flexibly moved to a designated area, avoiding the need to lift and transport the device again when it is necessary to temporarily transfer the device. At the same time, a motor is installed inside the extension base frame 38, and the motor is connected to the roller 39, so that when the motor is started, it can drive the roller 39 to rotate, thereby driving the overall displacement of the supporting base plate 33 to complete the work.

[0039] 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 rainwater infiltration detection device for a sponge city, comprising a displacement device (1), a driving motor (4) being fixedly mounted on the top front end of the displacement device (1), a worm (3) being fixedly mounted on the rear end center of the driving motor (4), and a supporting component (2) being inserted into the internal thread of the displacement device (1), characterized in that: The support component (2) comprises an alignment ring (5), a threaded rod (6) and a water penetration detection head (7); the water penetration detection head (7) is fixedly mounted on the bottom of the outer ring of the threaded rod (6); the alignment ring (5) is rotatably mounted on the top of the outer ring of the threaded rod (6); the displacement device (1) comprises a synchronization device (8), a transmission device (9), a matching device (10) and a positioning device (11); the synchronization device (8) is symmetrically fixedly mounted on the right side of the positioning device (11); the matching device (10) is fixedly mounted on the positioning device (11) The transmission device (9) is fixedly mounted on the side end of the positioning device (11) close to the synchronization device (8), and the transmission device (9) is located between the two synchronization devices (8). The matching device (10) comprises a limiting sleeve (25), a guide wheel (26) and a support base plate (27). The support base plate (27) is mounted on the top bottom end of the positioning device (11). The limiting sleeve (25) is fixedly mounted on the top of the support base plate (27). The guide wheel (26) is rotatably mounted on the side bottom end of the support base plate (27). The synchronization device (8) comprises a special-shaped connecting rod (12), a first piston rod (13), a support frame (14), a U-shaped limiting sleeve (15), a second piston rod (16) and an air cylinder (17), wherein the special-shaped connecting rod (12) is fixedly mounted on the top end of the first piston rod (13), the first piston rod (13) is slidably inserted into the top end of the air cylinder (17), the air cylinder (17) is fixedly mounted on the support frame (14), the second piston rod (16) is slidably inserted into the bottom end of the air cylinder (17), and the U-shaped limiting sleeve (15) is fixedly mounted on the bottom end of the second piston rod (16); The transmission device (9) comprises a connecting rope (18), a first worm wheel (19), a transmission gear (20), a support pad (21), an extension rod (22), a displacement base plate (23) and a first spring (24), wherein the first worm wheel (19) is fixedly mounted on the top of the transmission gear (20), the transmission gear (20) is rotatably mounted on the top of the displacement base plate (23), the extension rod (22) is fixedly mounted on both ends of the displacement base plate (23), the first spring (24) is fixedly mounted on one end of the displacement base plate (23) close to the first worm wheel (19), the support pad (21) is fixedly mounted on one end of the first spring (24) away from the displacement base plate (23), and the connecting rope (18) is fixedly mounted at the center of one end of the displacement base plate (23) away from the support pad (21); The positioning device (11) comprises a second worm gear (28), a support bottom ring (29), a gear ring (30), a photoelectric sensor (31), an electromagnetic valve (32), a support bottom plate (33), a high-pressure nozzle (34), an extension top frame (35), a second spring (36) and a guide sleeve (37), wherein the photoelectric sensor (31) is symmetrically fixedly mounted on the top right side of the support bottom plate (33), the electromagnetic valve (32) is symmetrically fixedly mounted on the top of the support bottom plate (33), and the electromagnetic valve (32) is located on the left side of the photoelectric sensor (31), the support bottom ring (29) is fixedly mounted on the top of the support bottom plate (33), and the support bottom ring (29) is located Between the two electromagnetic valves (32), the high-pressure nozzle (34) symmetrically penetrates the support bottom ring (29) and is connected to the electromagnetic valve (32); the gear ring (30) and the second worm gear (28) are rotatably mounted on the top of the support bottom ring (29), and the second worm gear (28) is located above the gear ring (30); the guide sleeve (37) is equidistantly fixedly mounted on the top of the extension top frame (35); the extension top frame (35) is fixedly mounted on the top of the support bottom ring (29); the second spring (36) is fixedly mounted on both sides of the extension top frame (35); the support frame (14) is symmetrically fixedly mounted on the side end of the support bottom plate (33) close to the photoelectric sensor (31); The worm (3) is meshed with the second worm wheel (28), and the threaded rod (6) is threadedly inserted into the inner center of the second worm wheel (28); the bottom end of the connecting rope (18) passes through the outer ring surface of the guide wheel (26), and the guide wheel (26) is aligned with the displacement base plate (23), the threaded rod (6) is located at the inner center of the guide sleeve (37), and the threaded rod (6) passes through the support base plate (33) and enters the soil layer. When the threaded rod (6) moves downward to the limit position, it drives the alignment ring (5) to squeeze the special-shaped connecting rod (12) to move downward, so that the U-shaped limit sleeve (15) falls off the extension rod (22), and the first spring (24) drives the displacement The base plate (23) moves toward one end close to the second worm gear (28), so that the first worm gear (19) and the transmission gear (20) mesh with the second worm gear (28) and the ring gear (30) respectively. When the displacement base plate (23) moves to the limit position, the extension rod (22) is driven to fit with the photoelectric sensor (31), and the electromagnetic valve (32) is activated. When the threaded rod (6) moves upward, the U-shaped limit sleeve (15) is reset upward. When the threaded rod (6) is completely reset upward, the connection rope (18) is pulled to drive the displacement base plate (23) to move outward to the limit position, and the extension rod (22) is again buckled into the groove inside the U-shaped limit sleeve (15).

2. A sponge city rainwater penetration detection device according to claim 1, characterized in that: The top end of the support base plate (27) is connected to the bottom side end of the guide sleeve (37) close to the photoelectric sensor (31), and the top end of the connecting rope (18) is connected to the bottom end of the alignment ring (5).

3. A sponge city rainwater penetration detection device according to claim 2, characterized in that: The support pad (21) is symmetrically fixedly mounted on the top of the support base plate (33) close to the photoelectric sensor (31), and one end of the special-shaped connecting rod (12) away from the first piston rod (13) is connected to the top of the second spring (36).

4. A sponge city rainwater penetration detection device according to claim 3, characterized in that: The interior of the gas cylinder (17) is arranged in a hollow state, and a closed cavity is formed between the first piston rod (13), the gas cylinder (17) and the second piston rod (16). A groove is provided at the center of the top end of the U-shaped limiting sleeve (15), and a 45° slope is provided at the top of one end of the groove close to the special-shaped connecting rod (12). The U-shaped limiting sleeve (15) is aligned with the extension rod (22).

5. A sponge city rainwater penetration detection device according to claim 4, characterized in that: A round rod is fixedly mounted at the center of one end of the support pad (21) close to the connecting rope (18), and the round rod is located at the center of the inner ring of the first spring (24). The inner wall of the guide sleeve (37) fits the outer surface of the threaded rod (6), and a nylon brush is fixedly mounted on the inner ring of the gear ring (30).

6. A sponge city rainwater penetration detection device according to claim 5, characterized in that: The high-pressure nozzle (34) is vertically aligned with the threaded rod (6), the electromagnetic valve (32) is electrically connected to the photoelectric sensor (31), and a threaded hole is provided at the inner center of the second worm gear (28).

7. A sponge city rainwater penetration detection device according to claim 6, characterized in that: The supporting base plate (33) further comprises an extension base frame (38) and a roller (39), wherein the extension base frame (38) is fixedly mounted on two sides of the bottom of the supporting base plate (33), and the roller (39) is rotatably mounted on the bottom end of the extension base frame (38).

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