Layered splicing type soil permeability experiment device

Abstract

The application discloses a layered splicing type soil permeation experiment device and relates to the technical field of soil leaching simulation experiments.The device comprises a cart, four universal wheels arranged at the bottom of the cart, a water tank arranged in the cart, and a water pump arranged at the top of the cart.The device is provided with a push rod, a wedge-shaped plate, a transmission belt, three transmission shafts, a mounting plate, a matching spring, a matching rack, a limiting groove, a U-shaped rod, a rotating gear, a rotating gear ring and a resisting plate, and can push the soil in a storage box into an outer sleeve according to the actual situation when the height is increased, and the soil can be taken out first when the height is decreased, so that the situation that the outer sleeve cannot be lowered due to the volume of the soil is avoided, manual adjustment and switching are not needed, the experimental height can be adjusted according to different geological layers, the soil is not needed to be taken out after being loaded, the experimental efficiency is greatly improved, the labor intensity of experimenters is reduced, and the device is worthy to be popularized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil permeation simulation experiment, in particular to a layered splicing type soil permeation experiment device. BACKGROUND

[0002] Leaching refers to the migration of soluble or suspended compounds (clay, organic matter, easily soluble salt, carbonate and iron and aluminum oxide, etc.) in soil from the upper part to the lower part under the action of percolating water, or lateral migration. In the leaching process, soil materials may undergo dissolution, chemical elution, chelation and mechanical leaching. In order to intuitively understand the leaching of soil, soil experiment device is often used for simulation experiment. During the test, the cylinder is generally vertically arranged in the room, the quantitative soil sample is put in, and then water is sprayed from the top, and the soil sample is sampled and detected at a certain period.

[0003] The patent No. CN106979922B discloses a soil leaching column and a soil leaching simulation system, and relates to the technical field of soil research. The technical problem of the prior art device cannot simulate the influence of different underground water level changes on the soil leaching process. The soil leaching column provided by the present application comprises a first column and a second column in communication with the first column. A phase interface porous partition plate is arranged at the junction of the first column and the second column. The first column is used for injecting simulated underground water, and the second column is used for filling soil. Water outlets are arranged at different heights of the first column, and a water outlet porous partition plate and a water outlet filter membrane are arranged at the bottom of the second column and connected to a leaching solution collection tank. The present application can provide a scientific means for analyzing the leaching rule, form transformation and spatial distribution characteristics of soil components under different underground water level conditions, and has important significance for guiding agricultural production and farmland pollution prevention work. The present application is mainly applied to the production and manufacture of soil leaching column and soil leaching simulation system.

[0004] The above-mentioned device realizes the analysis of the leaching rule, form transformation and spatial distribution of soil components under different underground water level conditions by the arrangement of the first column and the second column in communication with the first column. However, the actual geological conditions are very complex, and the distribution of corresponding geological layers also has great difference. The adjustment of geological layers in the prior art is troublesome. A large number of preparation steps are often required for one simulation experiment, which not only reduces the experimental efficiency, but also requires disassembly of the device, supplement of corresponding soil and installation of the device, which is very troublesome, time-consuming and laborious. SUMMARY

[0005] The technical scheme of the present application provides a significantly different solution from the prior art to solve the technical problem of the prior art solution being too single. Specifically, the purpose of the present application is to provide a layered splicing type soil permeation experiment device to solve the problems raised in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a layered splicing type soil permeation experiment device, comprising a cart, four universal wheels are arranged at the bottom of the cart, a water tank is arranged in the cart, a water pump is arranged at the top of the cart, a telescopic pipe is arranged at the top of the water pump, a recovery tank is arranged in the cart, a collecting funnel is fixedly arranged at the top of the cart, an arc limiting plate is fixedly arranged at the top of the cart, a spraying disc is fixedly arranged at the output end of the telescopic pipe, a plurality of adjusting mechanisms are clamped at the top of the collecting funnel, a soil storage box is fixedly arranged on the side wall of each adjusting mechanism, a soil filling mechanism is arranged at the end of each soil storage box, a one-way mechanism is arranged in each soil storage box, a matching mechanism is arranged at the bottom of each soil storage box, and two sliding grooves are arranged at the top of the cart.

[0007] Preferably, each adjusting mechanism comprises an outer sleeve, an inner sleeve, a rotating ring, two connecting rods, a percolation screen and a clamping ring, the inner sleeve is arranged at the top of the collecting funnel, the outer sleeve is threadedly arranged on the outer wall of the inner sleeve, the percolation screen is fixedly arranged at the bottom of the inner sleeve, the rotating ring is rotatably arranged at the top of the inner sleeve, one end of each connecting rod is fixedly arranged at the top of the outer sleeve, and the clamping ring is fixedly arranged at the top of the connecting rod.

[0008] Preferably, each one-way mechanism comprises a one-way rack, a hollow sleeve rod, a return spring and a wedge-shaped block, the one-way rack is slidably arranged in the soil storage box, the hollow sleeve rod is slidably arranged on the outer wall of the one-way rack, the hollow sleeve rod is provided with a mounting groove in the inside, and the return spring is arranged in the mounting groove.

[0009] Preferably, each soil filling mechanism comprises a fixed plate, a soil filling gear, a soil filling rack, a push plate, an arc-shaped telescopic plate and a matching plate, the fixed plate is fixedly arranged at the end of the soil storage box, the push plate is fixedly arranged at the end of the one-way rack, the soil filling gear is rotatably arranged at the bottom of the fixed plate, the soil filling rack is fixedly arranged on the side wall of the push plate close to the soil filling gear, the arc-shaped telescopic plate is fixedly arranged at the end of the hollow sleeve rod, the matching plate is fixedly arranged at the top of the arc-shaped telescopic plate, and the matching plate is in abutting engagement with the clamping ring.

[0010] Preferably, each soil filling rack and the corresponding soil filling gear are in meshing engagement.

[0011] Preferably, each of the matching mechanisms comprises a push rod, a wedge-shaped plate, a transmission belt, three transmission shafts, a mounting plate, a matching spring, a matching rack, a limiting groove, a U-shaped rod, a rotating gear, a rotating gear ring and a resisting plate, the push rod is fixedly arranged at the end of the arc-shaped telescopic rod, the wedge-shaped plate is slidably arranged at the bottom of the soil storage box, one of the transmission shafts is rotatably arranged at the bottom of the soil storage box, the limiting groove is arranged at the bottom of the soil storage box, one of the transmission shafts is slidably arranged in the limiting groove, the other transmission shaft is fixedly arranged at the bottom of the soil filling gear, the transmission belt is sleeved on the three transmission shafts, the mounting plate is fixedly arranged at the bottom of the soil storage box, the rotating gear ring is fixedly arranged on the outer wall of the corresponding sleeve, the rotating gear is fixedly arranged on the transmission shaft close to the rotating gear ring, the matching rack is slidably arranged at the bottom of the soil storage box, the matching spring is fixedly arranged on the mounting plate, the U-shaped rod is fixedly arranged at the end of the matching rack, and the resisting plate is arranged at the bottom of the wedge-shaped plate, and the resisting plate is in abutting engagement with the end of the U-shaped rod.

[0012] Preferably, the transmission mechanism comprises a plurality of cross blocks, a cross shaft, two sliding frames, a plurality of limiting holes, a limiting column, a cross bar, two sliding grooves and a transmission motor, the two sliding frames are slidably arranged in the corresponding sliding grooves respectively, the plurality of limiting holes are arranged on the side walls of the two sliding frames, the two sliding grooves are arranged on the inner side walls of the two sliding frames respectively, the two ends of the cross bar are slidably arranged in the two sliding grooves, the transmission motor is fixedly arranged at the bottom of the cross bar, the plurality of cross blocks are fixedly arranged at the bottom of the corresponding transmission shaft, the cross shaft is fixedly arranged at the end of the output shaft of the transmission motor, and the limiting column is insertedly arranged at the limiting hole and the end of the cross bar.

[0013] Preferably, the cross shaft is matched in size with the plurality of cross blocks.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] (1) Through the arrangement of the push rod, the wedge-shaped plate, the transmission belt, the three transmission shafts, the mounting plate, the matching spring, the matching rack, the limiting groove, the U-shaped rod, the rotating gear, the rotating gear ring and the resisting plate, the soil in the soil storage box is pushed into the outer sleeve when the height is raised, and vice versa, the soil needs to be taken out first to avoid the situation that the outer sleeve cannot be lowered due to the volume of the soil, and manual adjustment and switching are not required, which is convenient and fast, can adjust the experimental height according to different geological layers, and does not need to disassemble the soil storage box for taking out the soil, greatly improving the experimental efficiency and reducing the labor intensity of the experimental personnel, and is worth promoting.

[0016] (2) The present application realizes self-adjustment of the height of the corresponding simulated geological layer according to the experimental requirements, meets the diversity of the experiment, has a wide range of application, is simple to operate, is convenient and fast, and realizes separate adjustment of the rising and falling of two routes through the setting of the arc-shaped limiting plate, so that the arrangement of the corresponding geological layer is convenient to adjust and interference does not occur. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal cross-sectional structure of the cart of the present application;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the adjusting mechanism of the present application;

[0019] Figure 3 It is a schematic diagram of the internal cross-sectional structure of the soil storage box of the present application;

[0020] Figure 4 It is a schematic diagram of the bottom structure of the cooperation mechanism of the present application;

[0021] Figure 5 It is Figure 4 It is an enlarged view of A in the middle;

[0022] Figure 6 It is a schematic diagram of the top structure of the cooperation mechanism of the present application;

[0023] Figure 7 It is a schematic diagram of the transmission mechanism structure of the present application.

[0024] In the figure: 1, cart; 2, chute; 3, adjusting mechanism; 31, outer sleeve; 32, inner sleeve; 33, rotating ring; 34, connecting rod; 35, percolation screen; 36, snap ring; 4, cooperation mechanism; 41, push rod; 42, wedge-shaped plate; 43, transmission belt; 44, transmission shaft; 45, mounting plate; 46, cooperation spring; 47, cooperation rack; 48, limiting groove; 49, U-shaped rod; 410, rotating gear; 411, rotating gear ring; 412, abutting plate; 5, soil filling mechanism; 51, fixed plate; 52, soil filling gear; 53, soil filling rack; 54, push plate; 55, arc-shaped expansion plate; 56, cooperation plate; 6, one-way mechanism; 61, one-way rack; 62, hollow sleeve rod; 63, return spring; 64, wedge-shaped block; 7, transmission mechanism; 71, cross block; 72, cross shaft; 73, sliding frame; 74, limiting hole; 75, limiting column; 76, cross bar; 77, sliding groove; 78, transmission motor; 8, recovery box; 9, collection funnel; 10, water tank; 11, water pump; 12, telescopic pipe; 13, sprinkling disc; 14, arc-shaped limiting plate; 15, soil storage box; 16, universal wheel. DETAILED DESCRIPTION

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0026] Please refer to Figures 1-7 The present application provides an embodiment: a layered splicable soil permeation experiment device, comprising a cart 1, four universal wheels 16 are arranged at the bottom of the cart 1, a water tank 10 is arranged in the cart 1, a water pump 11 is arranged at the top of the cart 1, a telescopic pipe 12 is arranged at the top of the water pump 11, a recycling tank 8 is arranged in the cart 1, a collecting funnel 9 is fixedly arranged at the top of the cart 1, an arc-shaped limiting plate 14 is fixedly arranged at the top of the cart 1, a spraying disc 13 is fixedly arranged at the output end of the telescopic pipe 12, a plurality of adjusting mechanisms 3 are clamped at the top of the collecting funnel 9, a soil storage box 15 is fixedly arranged on the side wall of each adjusting mechanism 3, a soil filling mechanism 5 is arranged at the end of each soil storage box 15, a one-way mechanism 6 is arranged in each soil storage box 15, a matching mechanism 4 is arranged at the bottom of each soil storage box 15, two sliding grooves 2 are arranged at the top of the cart 1, and a transmission mechanism 7 is slidingly arranged in the two sliding grooves 2. First, the adjusting mechanisms 3 are filled with soil and stacked together, then water is pumped by the water pump 11, passes through the telescopic pipe 12, and is finally uniformly output from the spraying disc 13, so as to simulate the actual situation of the geological layer under the rainwater leaching, when different geological layers need to be simulated, the adjusting mechanisms 3 that need to be moved upwards are moved to the left side, the adjusting mechanisms 3 that need to be moved downwards are moved to the right side, then the corresponding adjusting mechanisms 3 are moved up and down along the arc-shaped edge of the arc-shaped limiting plate 14 to the required position for stacking, the height of the corresponding geological layer is adjusted according to the requirement, the matching mechanism 4 is connected with the adjusting mechanism 3 through the transmission mechanism 7, so that the transmission mechanism 7 drives the adjusting mechanism 3 to adjust the corresponding height, and the synchronous adjusting mechanism 3 drives the soil filling mechanism 5 to work to fill the soil to the raised adjusting mechanism 3, conversely, when the adjusting mechanism 3 needs to be lowered, the soil filling mechanism 5 pushes out the excess soil first through the arrangement of the matching mechanism 4, and then drives the adjusting mechanism 3 to be lowered.

[0027] Specifically, each of the adjusting mechanisms 3 comprises an outer sleeve 31, an inner sleeve 32, a rotating ring 33, two connecting rods 34, a percolation screen 35 and a snap ring 36, the inner sleeve 32 is arranged at the top of the collecting funnel 9, the outer sleeve 31 is threadedly arranged on the outer wall of the inner sleeve 32, the percolation screen 35 is fixedly arranged at the bottom of the inner sleeve 32, the rotating ring 33 is rotatably arranged at the top of the inner sleeve 32, one end of each of the two connecting rods 34 is fixedly arranged at the top of the outer sleeve 31, and the snap ring 36 is fixedly arranged at the top of the connecting rod 34. The outer sleeve 31 is rotated to drive the rotating ring 33 and the snap ring 36 to synchronously ascend, and vice versa, the outer sleeve 31 and the rotating ring 33 and the snap ring 36 are synchronously descended, the height of the corresponding simulated geological layer is automatically adjusted according to the needs, the diversity of the experiment is met, the application range is wide, the operation is simple, and the convenience is fast.

[0028] Specifically, each of the one-way mechanisms 6 comprises a one-way rack 61, a hollow sleeve rod 62, a reset spring 63 and a wedge block 64, the one-way rack 61 is slidably arranged in the soil storage box 15, the hollow sleeve rod 62 is slidably sleeved on the outer wall of the one-way rack 61, the hollow sleeve rod 62 is internally provided with a mounting groove, and the reset spring 63 is arranged in the mounting groove. When the one-way rack 61 moves towards the hollow sleeve rod 62, the one-way rack 61 abuts against the wedge block 64 to extrude the reset spring 63, so that the one-way rack 61 cannot drive the hollow sleeve rod 62 to synchronously move when moving towards the hollow sleeve rod 62, and vice versa, the one-way rack 61 abuts against the wedge block 64 when moving away from the hollow sleeve rod 62, so as to drive the hollow sleeve rod 62 to synchronously move.

[0029] Specifically, each of the soil filling mechanisms 5 comprises a fixed plate 51, a soil filling gear 52, a soil filling rack 53, a push plate 54, an arc-shaped telescopic plate 55 and a matching plate 56, the fixed plate 51 is fixedly arranged at the end of the soil storage box 15, the push plate 54 is fixedly arranged at the end of the one-way rack 61, the soil filling gear 52 is rotatably arranged at the bottom of the fixed plate 51, the soil filling rack 53 is fixedly arranged on the side wall of the push plate 54 close to the soil filling gear 52, the arc-shaped telescopic plate 55 is fixedly arranged at the end of the hollow sleeve rod 62, the matching plate 56 is fixedly arranged at the top of the arc-shaped telescopic plate 55, and the matching plate 56 abuts against the snap ring 36. The soil filling gear 52 is rotated to drive the soil filling rack 53 to move towards the one-way rack 61, the soil filling rack 53 moves to drive the push plate 54 to synchronously move, the push plate 54 moves to push the soil in the soil storage box 15 into the inner sleeve 32 and the outer sleeve 31, and vice versa, when the soil needs to be collected, the soil filling gear 52 is reversely rotated to synchronously drive the push plate 54, the one-way rack 61 and the hollow sleeve to reversely move, the hollow sleeve moves to drive the arc-shaped telescopic plate 55 to synchronously move to push the soil back into the soil storage box 15.

[0030] In particular, each of the earth filling racks 53 and the corresponding earth filling gears 52 are in mesh with each other.

[0031] Specifically, each of the matching mechanisms 4 comprises a push rod 41, a wedge-shaped plate 42, a transmission belt 43, three transmission shafts 44, a mounting plate 45, a matching spring 46, a matching rack 47, a limiting groove 48, a U-shaped rod 49, a rotating gear 410, a rotating gear ring 411 and a resisting plate 412. The push rod 41 is fixedly arranged at the end of the arc-shaped telescopic rod. The wedge-shaped plate 42 is slidingly arranged at the bottom of the soil storage box 15. One of the transmission shafts 44 is rotatably arranged at the bottom of the soil storage box 15. The limiting groove 48 is arranged at the bottom of the soil storage box 15. One of the transmission shafts 44 is slidingly arranged in the limiting groove 48. The other transmission shaft 44 is fixedly arranged at the bottom of the soil filling gear 52. The transmission belt 43 is sleeved on the three transmission shafts 44. The mounting plate 45 is fixedly arranged at the bottom of the soil storage box 15. The rotating gear ring 411 is fixedly arranged on the outer wall of the corresponding sleeve 31. The rotating gear 410 is fixedly arranged on the transmission shaft 44 close to the rotating gear ring 411. The matching rack 47 is slidingly arranged at the bottom of the soil storage box 15. The matching spring 46 is fixedly arranged on the mounting plate 45. The U-shaped rod 49 is fixedly arranged at the end of the matching rack 47. The resisting plate 412 is arranged at the bottom of the wedge-shaped plate 42, and the resisting plate 412 is in abutting engagement with the end of the U-shaped rod 49. The soil filling gear 52 is rotated by the rotation of the transmission shaft 44, the soil filling gear 52 drives the matching rack 47 to move away from the rotating gear 410, thereby driving the U-shaped rod 49 to move synchronously, the U-shaped rod 49 drives the resisting plate 412 and the wedge-shaped plate 42 to move synchronously, the wedge-shaped plate 42 moves to abut against the transmission column sliding in the limiting groove 48, thereby making the transmission belt 43 be taut, so that the rotation of the transmission shaft 44 drives the transmission belt 43 to drive the other two transmission shafts 44 to rotate synchronously, the rotation of the transmission shaft 44 drives the rotating gear 410 to rotate, the rotation of the rotating gear 410 drives the rotating gear ring 411 to rotate, the rotation of the rotating gear ring 411 drives the sleeve 31 to rotate, thereby achieving the lifting of the sleeve 31. Conversely, when the soil filling gear 52 is reversely rotated by the transmission shaft 44, the U-shaped rod 49 cannot drive the resisting plate 412 to move, thereby making the transmission belt 43 unable to drive the sleeve 31 to rotate, so that the sleeve 31 cannot be lowered. At this time, due to the rotation of the soil filling gear 52, the arc-shaped telescopic plate 55 and the push rod 41 move towards the soil filling gear 52 until the push rod 41 pushes the wedge-shaped plate 42 to abut against the transmission shaft 44, so that the transmission shaft 44 tautens the transmission belt 43, thereby making the rotating gear 410 drive the rotating ring 33 and the sleeve 31 to rotate, so that the sleeve 31 is lowered. The actual situation is realized, that is, when the height is lifted, the push plate 54 pushes the soil in the soil storage box 15 into the sleeve 31, conversely, when the height is lowered, the soil needs to be taken out first to avoid the situation that the volume of the soil causes the sleeve 31 to be unable to be lowered, and manual adjustment and switching are not needed, which is convenient and fast, can be adjusted according to different geological layers, and does not need to be disassembled for soil loading and taking, greatly improves the experimental efficiency, and reduces the labor intensity of the experimenters, and is worth promoting.

[0032] Specifically, the transmission mechanism 7 comprises a plurality of cross blocks 71, a cross shaft 72, two sliding frames 73, a plurality of limiting holes 74, limiting columns 75, a cross rod 76, two sliding grooves 77 and a transmission motor 78. Both sliding frames 73 are slidingly arranged in the corresponding sliding grooves 2. The plurality of limiting holes 74 are arranged on the side walls of the two sliding frames 73. The two sliding grooves 77 are arranged on the inner side walls of the two sliding frames 73. Both ends of the cross rod 76 are slidingly arranged in the two sliding grooves 77. The transmission motor 78 is fixedly arranged at the bottom of the cross rod 76. The plurality of cross blocks 71 are fixedly arranged at the bottom of the corresponding transmission shaft 44. The cross shaft 72 is fixedly arranged at the output shaft end of the corresponding transmission motor 78. The limiting columns 75 are insertedly arranged at the limiting holes 74 and the end of the cross rod 76. By moving the sliding frame 73 to the corresponding cross block 71 below, then pulling out the limiting column 75 to move the cross rod 76 to the appropriate height, so that the cross shaft 72 and the cross block 71 are clamped, and then the limiting column 75 is inserted, so that the cross rod 76 is clamped and limited. The output shaft of the transmission motor 78 rotates to drive the cross shaft 72 to rotate, and the cross shaft 72 rotates to drive the corresponding cross block 71 and the transmission shaft 44 to rotate synchronously.

[0033] Specifically, the cross shaft 72 is size-fitted with the plurality of cross blocks 71.

[0034] Working principle: first, the outer sleeve 31 and inner sleeve 32 are filled with soil and stacked together, then the water pump 11 is used to pass water through the extension pipe 12, and finally the water is uniformly output from the spray disc 13, thereby simulating the actual rainwater leaching under the geological layer, when different geological layers need to be simulated, the outer sleeve 31 and inner sleeve 32 that need to be moved upwards are moved to the left, and the outer sleeve 31 and inner sleeve 32 that need to be moved downwards are moved to the right, then the corresponding outer sleeve 31 and inner sleeve 32 are moved up and down along the arc-shaped edge of the arc-shaped limiting plate 14 to the desired position for stacking, and then the height of the corresponding geological layer is adjusted as needed, the sliding frame 73 is moved to the lower side of the cross block 71, then the limiting column 75 is pulled out to move the cross bar 76 to the appropriate height, so that the cross shaft 72 and the cross block 71 are clamped, then the limiting column 75 is inserted, so that the cross bar 76 is clamped and limited, the output shaft of the transmission motor 78 rotates to drive the cross shaft 72 to rotate, and the cross shaft 72 rotates to drive the corresponding cross block 71 and transmission shaft 44 to rotate synchronously. The rotation of the transmission shaft 44 drives the filling gear 52 to rotate, and the rotation of the filling gear 52 drives the matching rack 47 to move away from the direction of the rotating gear 410, thereby driving the U-shaped rod 49 to move synchronously, and the U-shaped rod 49 moves to drive the abutting plate 412 and the wedge-shaped plate 42 to move synchronously, and the wedge-shaped plate 42 moves to abut the transmission column sliding in the limiting groove 48, thereby tightening the transmission belt 43, so that the transmission of the transmission shaft 44 drives the transmission of the other two transmission shafts 44 to rotate synchronously, the rotation of the transmission shaft 44 drives the rotating gear 410 to rotate, the rotation of the rotating gear 410 drives the rotating tooth ring 411 to rotate, and the rotation of the rotating tooth ring 411 drives the outer sleeve 31 to rotate, thereby realizing the lifting of the outer sleeve 31, and vice versa. When the filling gear 52 is reversed, the U-shaped rod 49 cannot drive the abutting plate 412 to move, so that the transmission belt 43 cannot be transmitted to make the outer sleeve 31 unable to rotate, thereby making the outer sleeve 31 unable to lower, at this time, the rotation of the filling gear 52 drives the arc-shaped expansion plate 55 and the push rod 41 to move towards the filling gear 52, until the push rod 41 pushes the wedge-shaped plate 42 to abut the transmission shaft 44, so that the transmission shaft 44 tightens the transmission belt 43, thereby enabling the rotating gear 410 to drive the rotating ring 33 and the outer sleeve 31 to rotate, thereby enabling the outer sleeve 31 to lower, thereby enabling the transmission mechanism 7 to drive the adjusting mechanism 3 to adjust the corresponding height.

[0035] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A layered, modular soil permeability testing device, comprising a trolley (1), the trolley (1) having four casters (16) at its bottom, a water tank (10) inside the trolley (1), a water pump (11) on top of the trolley (1), and a telescopic pipe (12) on top of the water pump (11), characterized in that: The trolley (1) is internally provided with a recycling box (8), the trolley (1) is internally and fixedly provided with a collecting funnel (9), the trolley (1) is fixedly provided with an arc-shaped limiting plate (14) on the top, the output end of the telescopic pipe (12) is fixedly provided with a spraying disc (13), the top of the collecting funnel (9) is clamped with a plurality of adjusting mechanisms (3), the side wall of each adjusting mechanism (3) is fixedly provided with a soil storage box (15), the end of each soil storage box (15) is provided with a soil filling mechanism (5), the inside of each soil storage box (15) is provided with a one-way mechanism (6), the bottom of each soil storage box (15) is provided with a matching mechanism (4), and the top of the trolley (1) is provided with two sliding grooves (2). The two sliding grooves (2) are internally and slidably provided with a transmission mechanism (7).

2. The layered splicable soil infiltration experimental device according to claim 1, characterized in that: Each adjusting mechanism (3) comprises an outer sleeve (31), an inner sleeve (32), a rotating ring (33), two connecting rods (34), a percolation screen (35) and a clamping ring (36), the inner sleeve (32) is arranged on the top of the collecting funnel (9), the outer sleeve (31) is threadedly arranged on the outer wall of the inner sleeve (32), the percolation screen (35) is fixedly arranged on the bottom of the inner sleeve (32), the rotating ring (33) is rotatably arranged on the top of the inner sleeve (32), one end of each of the two connecting rods (34) is fixedly arranged on the top of the outer sleeve (31), and the clamping ring (36) is fixedly arranged on the top of the connecting rod (34).

3. The layered splicable soil infiltration experimental device according to claim 1, characterized in that: Each one-way mechanism (6) comprises a one-way rack (61), a hollow sleeve rod (62), a reset spring (63) and a wedge block (64), the one-way rack (61) is slidably arranged in the soil storage box (15), the hollow sleeve rod (62) is slidably arranged on the outer wall of the one-way rack (61), the hollow sleeve rod (62) is internally provided with a mounting groove, and the reset spring (63) is arranged in the mounting groove.

4. The layered splicable soil infiltration experimental device according to claim 3, characterized in that: Each soil filling mechanism (5) comprises a fixed plate (51), a soil filling gear (52), a soil filling rack (53), a push plate (54), an arc-shaped telescopic plate (55) and a matching plate (56), the fixed plate (51) is fixedly arranged at the end of the soil storage box (15), the push plate (54) is fixedly arranged at the end of the one-way rack (61), the soil filling gear (52) is rotatably arranged at the bottom of the fixed plate (51), the soil filling rack (53) is fixedly arranged on the side wall of the push plate (54) close to the soil filling gear (52), the arc-shaped telescopic plate (55) is fixedly arranged at the end of the hollow sleeve rod (62), the matching plate (56) is fixedly arranged on the top of the arc-shaped telescopic plate (55), and the matching plate (56) is in abutting engagement with the clamping ring (36).

5. The layered splicable soil infiltration experimental device according to claim 4, characterized in that: Each soil filling rack (53) and the corresponding soil filling gear (52) are in meshing engagement.

6. The layered splicable soil infiltration experimental device according to claim 1, characterized in that: Each of the matching mechanisms (4) comprises a push rod (41), a wedge-shaped plate (42), a transmission belt (43), three transmission shafts (44), a mounting plate (45), a matching spring (46), a matching rack (47), a limiting groove (48), a U-shaped rod (49), a rotating gear (410), a rotating gear ring (411) and a resisting plate (412), the push rod (41) is fixedly arranged at the end of the arc-shaped telescopic rod, the wedge-shaped plate (42) is slidably arranged at the bottom of the soil storage box (15), one of the transmission shafts (44) is rotatably arranged at the bottom of the soil storage box (15), the limiting groove (48) is arranged at the bottom of the soil storage box (15), one of the transmission shafts (44) is slidably arranged in the limiting groove (48), another of the transmission shafts (44) is fixedly arranged at the bottom of the soil filling gear (52), the transmission belt (43) is sleeved on the three transmission shafts (44), the mounting plate (45) is fixedly arranged at the bottom of the soil storage box (15), the rotating gear ring (411) is fixedly arranged on the outer wall of the corresponding sleeve (31), the rotating gear (410) is fixedly arranged on the transmission shaft (44) close to the rotating gear ring (411), the matching rack (47) is slidably arranged at the bottom of the soil storage box (15), the matching spring (46) is fixedly arranged on the mounting plate (45), the U-shaped rod (49) is fixedly arranged at the end of the matching rack (47), the resisting plate (412) is arranged at the bottom of the wedge-shaped plate (42), and the resisting plate (412) is in abutting cooperation with the end of the U-shaped rod (49).

7. The layered splicable soil infiltration experimental device according to claim 6, characterized in that: The transmission mechanism (7) comprises a plurality of cross blocks (71), a cross shaft (72), two sliding frames (73), a plurality of limiting holes (74), a limiting column (75), a cross rod (76), two sliding grooves (77) and a transmission motor (78), the two sliding frames (73) are slidably arranged in the corresponding sliding grooves (2), the plurality of limiting holes (74) are arranged on the side walls of the two sliding frames (73), the two sliding grooves (77) are arranged on the inner side walls of the two sliding frames (73), the two ends of the cross rod (76) are slidably arranged in the two sliding grooves (77), the transmission motor (78) is fixedly arranged at the bottom of the cross rod (76), the plurality of cross blocks (71) are fixedly arranged at the bottoms of the corresponding transmission shafts (44), the cross shaft (72) is fixedly arranged at the end of the output shaft of the corresponding transmission motor (78), and the limiting column (75) is insertedly arranged at the limiting hole (74) and the end of the cross rod (76).

8. The layered splicable soil infiltration experimental device according to claim 7, characterized in that: The cross shaft (72) is matched in size with the plurality of cross blocks (71).

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