Layered splicing type soil infiltration capacity experimental device

Abstract

The invention discloses a layered splicable soil permeation experiment device, and relates to the technical field of soil leaching simulation experiments, the layered splicable soil permeation experiment device comprises a cart, the bottom of the cart is provided with four universal wheels, the cart is internally provided with a water tank, and the top of the cart is provided with a water pump. Through the arrangement of a push rod, a wedge-shaped plate, a transmission belt, three transmission shafts, a mounting plate, a matched spring, a matched rack, a limiting groove, a U-shaped rod, a rotating gear, a rotating gear ring and an abutting plate, according to the actual situation, soil in a soil storage box is pushed into an outer sleeve by a push plate when the height is increased, and otherwise, the soil needs to be taken out firstly when the height is decreased; the situation that the outer sleeve cannot descend due to the volume of soil is avoided, manual adjustment and switching are not needed, convenience and rapidness are achieved, the experiment height can be adjusted according to different geological stratums, disassembly for soil loading and soil taking are not needed, the experiment efficiency is greatly improved, the labor intensity of experimenters is further reduced, and the device is worthy of popularization.

Description

Technical Field

[0001] The invention relates to the technical field of soil penetration simulation experiments, in particular to a layered and splicable soil penetration experiment device. Background Art

[0002] Leaching refers to a soil process in which soluble or suspended compounds (clay, organic matter, soluble salts, carbonates, iron and aluminum oxides, etc.) in soil materials migrate from the upper part of the soil to the lower part, or migrate laterally, under the action of seepage water. During the leaching process, soil materials may undergo dissolution, chemical extraction, chelation, and mechanical leaching. In order to intuitively understand the leaching of soil, soil experimental devices are often used for simulation experiments. During the test, a cylinder is usually set up vertically indoors, a quantitative soil sample is placed, and water is sprayed from above. The soil samples are sampled and tested at a certain period.

[0003] The invention patent with patent number CN106979922B discloses a soil leaching column and a soil leaching simulation system, which relates to the field of soil research technology, in order to improve the technical problem that the existing device cannot simulate the influence of different groundwater level changes on the soil leaching process. The soil leaching column provided by the present invention includes a first column and a second column connected thereto, and a porous partition plate of the interface is arranged at the junction of the first column and the second column; the first column is used to inject simulated groundwater, and the second column is used to fill the soil; water intakes are arranged at different heights of the first column, and a porous partition plate and a water outlet filter membrane are arranged at the bottom of the second column and connected to the leaching solution collection tank. The present invention can provide a scientific means for analyzing the leaching law, morphological transformation and spatial distribution characteristics of soil components under different groundwater level conditions, and is of great significance for guiding agricultural production and farmland pollution prevention and control work. The invention is mainly used in the production and manufacturing of soil leaching columns and soil leaching simulation systems.

[0004] The above-mentioned device realizes the analysis of the leaching law, morphological transformation and spatial distribution of soil components under different groundwater levels through the arrangement of the first column and the second column connected thereto. However, the actual geological conditions are very complicated, and the distribution of the corresponding geological layers will also vary greatly. The adjustment of the geological layers in the prior art is relatively troublesome, and a simulation of an experiment often requires a large number of preparation steps, which not only reduces the experimental efficiency, but also requires the disassembly of the device and the replenishment of the corresponding soil when simulating the height of the geological layer, and then the installation, which is very troublesome, time-consuming and labor-intensive. Summary of the invention

[0005] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a layered and spliced ​​soil permeability test device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a layered and splicable soil infiltration experimental device, comprising a cart, four universal wheels are arranged at the bottom of the cart, a water tank is arranged inside the cart, a water pump is arranged on the top of the cart, a telescopic tube is arranged on the top of the water pump, a recovery box is arranged inside the cart, a collecting funnel is fixedly arranged on the top of the cart, an arc-shaped limiting plate is fixedly arranged on the top of the cart, a spray plate is fixedly arranged on the output end of the telescopic tube, a plurality of adjustment mechanisms are clamped on the top of the collecting funnel, a soil storage box is fixedly arranged on the side wall of each of the adjustment mechanisms, a soil filling mechanism is arranged at the end of each of the soil storage boxes, a one-way mechanism is arranged inside each of the soil storage boxes, a matching mechanism is arranged at the bottom of each of the soil storage boxes, two slide grooves are arranged on the top of the cart, and a transmission mechanism is slidably arranged inside the two slide grooves.

[0007] Preferably, each of the adjustment mechanisms includes an outer sleeve, an inner sleeve, a rotating ring, two connecting rods, a filter screen and a clamping ring. The inner sleeve is arranged on the top of the collecting funnel, the outer sleeve is threaded on the outer wall of the inner sleeve, the filter screen is fixedly arranged on the bottom of the inner sleeve, the rotating ring is rotatably arranged on the top of the inner sleeve, one end of the two connecting rods is fixedly arranged on the top of the outer sleeve, and the clamping ring is fixedly arranged on the top of the connecting rod.

[0008] Preferably, it is characterized in that: each of the one-way mechanisms includes a one-way rack, a hollow sleeve rod, a return spring and a wedge block, the one-way rack is slidably arranged inside the soil storage box, the hollow sleeve rod is slidably sleeved on the outer wall of the one-way rack, an installation groove is arranged inside the hollow sleeve rod, and the return spring is arranged inside the installation groove.

[0009] Preferably, each of the filling mechanisms includes a fixed plate, a filling gear, a 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 filling gear is rotatably arranged at the bottom of the fixed plate, the filling rack is fixedly arranged on a side wall of the push plate close to the filling gear, the arc-shaped telescopic plate is fixedly arranged at the end of the hollow sleeve rod, the matching plate is fixedly arranged on the top of the arc-shaped telescopic plate, and the matching plate is in contact with the retaining ring.

[0010] Preferably, each of the soil filling racks and the corresponding soil filling gear are meshed with each other.

[0011] Preferably, each of the mating mechanisms comprises a push rod, a wedge plate, a transmission belt, three transmission shafts, a mounting plate, a mating spring, a mating rack, a limiting groove, a U-shaped rod, a rotating gear, a rotating gear ring and a contact plate, wherein the push rod is fixedly arranged at the end of the arc-shaped telescopic rod, the wedge 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 inside the limiting groove, and the other transmission shaft is fixedly arranged at the bottom of the 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 outer sleeve, the rotating gear is fixedly arranged on the transmission shaft close to the rotating gear ring, the mating rack is slidably arranged at the bottom of the soil storage box, the mating spring is fixedly arranged on the mounting plate, the U-shaped rod is fixedly arranged at the end of the mating rack, the contact plate is arranged at the bottom of the wedge plate, and the contact plate is in contact with the end of the U-shaped rod.

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

[0013] Preferably, the cross shaft is compatible with several cross block sizes.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention realizes the actual situation by setting a push rod, a wedge plate, a transmission belt, three transmission shafts, a mounting plate, a matching spring, a matching rack, a limit groove, a U-shaped rod, a rotating gear, a rotating gear ring and a contact plate. When the height is raised, the push plate pushes the soil inside the soil storage box into the outer sleeve. On the contrary, when the height is lowered, the soil needs to be taken out first to avoid the situation where the outer sleeve cannot be lowered due to the volume of soil. In addition, there is no need for manual adjustment and switching, which is convenient and fast. The experimental height can be adjusted according to different geological layers, and there is no need to disassemble the soil loading and taking out, which greatly improves the experimental efficiency and reduces the labor intensity of the experimenters. It is worthy of promotion.

[0016] (2) The present invention realizes self-adjustment of the height of the corresponding simulated geological layer according to experimental requirements by means of the outer sleeve, inner sleeve, rotating ring, two connecting rods, infiltration net and clamping ring, meets the diversity of experiments, has a wide range of applications, is simple to operate, and is convenient and fast. In addition, by setting an arc-shaped limit plate, two routes are realized for separately adjusting the rise and descent, which is convenient for adjusting the arrangement of the corresponding geological layers without interference. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle;

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

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

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

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-7 , an embodiment of the present invention: a layered and splicable soil infiltration experimental device, comprising a cart 1, four universal wheels 16 are arranged at the bottom of the cart 1, a water tank 10 is arranged inside the cart 1, a water pump 11 is arranged on the top of the cart 1, a telescopic tube 12 is arranged on the top of the water pump 11, a recovery box 8 is arranged inside the cart 1, a collecting funnel 9 is fixedly arranged on the top of the cart 1, an arc-shaped limit plate 14 is fixedly arranged on the top of the cart 1, a spray plate 13 is fixedly arranged on the output end of the telescopic tube 12, a plurality of adjustment mechanisms 3 are clamped on the top of the collecting funnel 9, a soil storage box 15 is fixedly arranged on the side wall of each of the adjustment mechanisms 3, a soil filling mechanism 5 is arranged at the end of each of the soil storage boxes 15, a one-way mechanism 6 is arranged inside each of the soil storage boxes 15, a matching mechanism 4 is arranged at the bottom of each of the soil storage boxes 15, two slide grooves 2 are arranged on the top of the cart 1, and a transmission mechanism 7 is slidably arranged inside the two slide grooves 2. First, the adjusting mechanism 3 is filled with soil and stacked together, and then the water is pumped through the telescopic pipe 12 by the water pump 11, and finally evenly output from the spray plate 13, so as to simulate the actual situation of rainwater elution of the geological layer. When it is necessary to simulate different geological layers, the adjusting mechanism 3 that needs to be moved upward is moved to the left, and the adjusting mechanism 3 that needs to be moved downward is moved to the right. Then, the corresponding adjusting mechanism 3 is moved up and down along the arc edge of the arc limit plate 14 to the required position for stacking, and then the height of the corresponding geological layer is adjusted as needed. The transmission mechanism 7 drives the matching mechanism 4 to be connected with the adjusting mechanism 3, so that the transmission mechanism 7 drives the adjusting mechanism 3 to adjust the corresponding height, and the synchronous adjusting mechanism 3 drives the filling mechanism 5 to work to fill the raised adjusting mechanism 3 with soil. On the contrary, when the adjusting mechanism 3 needs to be lowered, the matching mechanism 4 is set so that the filling mechanism 5 first pushes out the excess soil and then drives the adjusting mechanism 3 to lower its height.

[0027] Specifically, each of the adjustment mechanisms 3 includes an outer sleeve 31, an inner sleeve 32, a rotating ring 33, two connecting rods 34, a percolation net 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 net 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 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 rotating ring 33 and the snap ring 36 are synchronously raised by the rotation of the outer sleeve 31, and vice versa, the outer sleeve 31, the rotating ring 33 and the snap ring 36 are synchronously lowered by the reverse rotation; the height of the corresponding simulated geological layer is automatically adjusted according to the needs, which meets the diversity of experiments, has a wide range of applications, is simple to operate, and is convenient and fast.

[0028] Specifically, each of the one-way mechanisms 6 includes 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 inside the soil storage box 15, the hollow sleeve rod 62 is slidably sleeved on the outer wall of the one-way rack 61, a mounting groove is arranged inside the hollow sleeve rod 62, and the reset spring 63 is arranged inside the mounting groove. When the one-way rack 61 moves toward the hollow sleeve rod 62, the one-way rack 61 contacts the wedge block 64 to squeeze the reset spring 63, so that when the one-way rack 61 moves toward the hollow sleeve rod 62, it cannot drive the hollow sleeve rod 62 to move synchronously. On the contrary, when the one-way rack 61 moves in a direction away from the hollow sleeve rod 62, it contacts the wedge block 64, thereby driving the hollow sleeve rod 62 to move synchronously.

[0029] Specifically, each of the filling mechanisms 5 includes a fixed plate 51, a filling gear 52, a filling rack 53, a push plate 54, an arc-shaped telescopic plate 55 and a matching plate 56. The fixed plate 51 is fixedly set at the end of the soil storage box 15, the push plate 54 is fixedly set at the end of the one-way rack 61, the filling gear 52 is rotatably set at the bottom of the fixed plate 51, the filling rack 53 is fixedly set on the side wall of the push plate 54 close to the filling gear 52, the arc-shaped telescopic plate 55 is fixedly set at the end of the hollow sleeve rod 62, and the matching plate 56 is fixedly set on the top of the arc-shaped telescopic plate 55, and the matching plate 56 is in contact with the retaining ring 36. The filling gear 52 rotates to drive the filling rack 53 to move toward the one-way rack 61, and the movement of the filling rack 53 drives the push plate 54 to move synchronously. The push plate 54 moves to push the soil inside the soil storage box 15 into the inner sleeve 32 and the outer sleeve 31. Conversely, when it is necessary to collect soil, the filling gear 52 rotates in the opposite direction to synchronously drive the push plate 54, the one-way rack 61 and the hollow sleeve to move in the opposite direction. The movement of the hollow sleeve drives the arc-shaped telescopic plate 55 to move synchronously to push the soil back into the soil storage box 15.

[0030] Specifically, each of the soil filling racks 53 and the corresponding soil filling gear 52 are meshed with each other.

[0031] Specifically, each of the mating mechanisms 4 includes a push rod 41, a wedge plate 42, a transmission belt 43, three transmission shafts 44, a mounting plate 45, a mating spring 46, a mating rack 47, a limiting groove 48, a U-shaped rod 49, a rotating gear 410, a rotating gear ring 411 and a contact plate 412. The push rod 41 is fixedly arranged at the end of the arc-shaped telescopic rod, the wedge 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 inside the limiting groove 48, and the other transmission shaft 44 is fixed The driving belt 43 is mounted on three driving shafts 44, the mounting plate 45 is fixedly mounted on the bottom of the soil storage box 15, the rotating gear ring 411 is fixedly mounted on the outer wall of the corresponding outer sleeve 31, the rotating gear 410 is fixedly mounted on the driving shaft 44 close to the rotating gear ring 411, the mating rack 47 is slidably mounted on the bottom of the soil storage box 15, the mating spring 46 is fixedly mounted on the mounting plate 45, the U-shaped rod 49 is fixedly mounted on the end of the mating rack 47, the contact plate 412 is disposed at the bottom of the wedge plate 42, and the contact plate 412 is in contact with the end of the U-shaped rod 49. The filling gear 52 is driven to rotate by the transmission shaft 44, and the filling gear 52 drives the matching rack 47 to move in the direction away from the rotating gear 410, thereby driving the U-shaped rod 49 to move synchronously, and the movement of the U-shaped rod 49 drives the contact plate 412 and the wedge plate 42 to move synchronously, and the movement of the wedge plate 42 contacts the transmission column to slide inside the limiting groove 48, so that the transmission belt 43 is tightened, 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, and the rotation of the transmission shaft 44 drives the rotating gear 410 to rotate, and the rotation of the rotating gear 410 drives the rotating gear ring 411 to rotate, and the rotation of the rotating gear ring 411 drives the outer sleeve 31 to rotate, thereby realizing the lifting of the outer sleeve 31. On the contrary, when the transmission shaft 44 drives the filling gear 52 to reverse, the U-shaped rod 49 cannot drive the contact plate 412 to move, so that the transmission belt 43 cannot be transmitted, so that the outer sleeve 31 is lifted. 1 cannot rotate, so that the outer sleeve 31 cannot be lowered. At this time, the rotation of the filling gear 52 drives the arc telescopic plate 55 and the push rod 41 to move toward the filling gear 52, until the push rod 41 pushes the wedge plate 42 to contact the transmission shaft 44, so that the transmission shaft 44 tightens the transmission belt 43, so that the rotating gear 410 can drive the rotating ring 33 and the outer sleeve 31 to rotate, so that the outer sleeve 31 descends; according to the actual situation, when the height is increased, the push plate 54 pushes the soil inside the soil storage box 15 into the outer sleeve 31, and when the height is lowered, the soil needs to be taken out first to avoid the situation that the outer sleeve 31 cannot be lowered due to the volume of soil, and there is no need for manual adjustment and switching, which is convenient and fast, and the experimental height can be adjusted according to different geological layers, and there is no need to disassemble the soil loading and taking, which greatly improves the experimental efficiency and reduces the labor intensity of the experimenters, and is worthy of promotion.

[0032] Specifically, the transmission mechanism 7 includes 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 bar 76, two sliding grooves 77 and a transmission motor 78. The two sliding frames 73 are respectively slidably arranged inside the corresponding sliding grooves 2, a plurality of limiting holes 74 are arranged on the side walls of the two sliding frames 73, the two sliding grooves 77 are respectively arranged on the inner side walls of the two sliding frames 73, the two ends of the cross bar 76 are slidably arranged inside the two sliding grooves 77, the transmission motor 78 is fixedly arranged at the bottom of the cross bar 76, a plurality of the cross blocks 71 are fixedly arranged at the bottom of the corresponding transmission shaft 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 plugged into the limiting hole 74 and the end of the cross bar 76. By moving the sliding frame 73 to the bottom of the corresponding cross block 71, then pulling out the limiting column 75 to move the cross bar 76 to a suitable height, the cross shaft 72 and the cross block 71 are engaged, and then the limiting column 75 is inserted to allow the cross bar 76 to be engaged and limited. The output shaft of the transmission motor 78 rotates to drive the cross shaft 72 to rotate, and the rotation of the cross shaft 72 drives the corresponding cross block 71 and the transmission shaft 44 to rotate synchronously.

[0033] Specifically, the cross shaft 72 is adapted to the size of the plurality of cross blocks 71 .

[0034] Working principle: First, the outer sleeve 31 and the inner sleeve 32 are filled with soil and stacked together, and then the water is pumped through the telescopic pipe 12 by the water pump 11, and finally uniformly output from the spray plate 13, so as to simulate the actual situation of rainwater leaching of the geological layer. When different geological layers need to be simulated, the outer sleeve 31 and the inner sleeve 32 that need to be moved upward are moved to the left, and the outer sleeve 31 and the inner sleeve 32 that need to be moved downward are moved to the right, and then the corresponding outer sleeve 31 and the inner sleeve 32 are moved along the arc limit plate. The arc-shaped edges of 14 can be moved up and down to the required position for stacking, and then the height of the corresponding geological layer can be adjusted as needed, by moving the sliding frame 73 to the bottom of the corresponding cross block 71, then pulling out the limiting column 75 to move the cross bar 76 to a suitable height, so that the cross shaft 72 and the cross block 71 are engaged, and then the limiting column 75 is inserted to allow the cross bar 76 to be engaged and limited, and the output shaft of the transmission motor 78 rotates to drive the cross shaft 72 to rotate, and the rotation of the cross shaft 72 drives the corresponding cross block 71 and the transmission shaft 44 to rotate synchronously. The filling gear 52 is driven to rotate by the transmission shaft 44, and the filling gear 52 drives the matching rack 47 to move in the direction away from the rotating gear 410, thereby driving the U-shaped rod 49 to move synchronously, and the movement of the U-shaped rod 49 drives the contact plate 412 and the wedge plate 42 to move synchronously, and the movement of the wedge plate 42 contacts the transmission column to slide inside the limiting groove 48, so that the transmission belt 43 is tightened, 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, and the rotation of the rotating gear ring 411 drives the outer sleeve 31 to rotate, thereby realizing the outer sleeve 31. When the sleeve 31 rises, while the transmission shaft 44 drives the filling gear 52 to reverse, the U-shaped rod 49 cannot drive the contact plate 412 to move, so that the transmission belt 43 cannot be transmitted and the outer sleeve 31 cannot be rotated, so that the outer sleeve 31 cannot be lowered. At this time, the rotation of the filling gear 52 drives the arc-shaped telescopic plate 55 and the push rod 41 to move toward the filling gear 52 until the push rod 41 pushes the wedge plate 42 to contact the transmission shaft 44, so that the transmission shaft 44 tightens the transmission belt 43, so that the rotating gear 410 can drive the rotating ring 33 and the outer sleeve 31 to rotate, so that the outer sleeve 31 descends, so that the transmission mechanism 7 drives the adjustment mechanism 3 to adjust the corresponding height.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A layered and splicable soil permeability test device, comprising a cart (1), wherein the bottom of the cart (1) is provided with four universal wheels (16), a water tank (10) is provided inside the cart (1), a water pump (11) is provided on the top of the cart (1), and a telescopic tube (12) is provided on the top of the water pump (11), characterized in that: The cart (1) is provided with a recovery box (8) inside, a collecting funnel (9) is fixedly provided on the top of the cart (1), an arc-shaped limit plate (14) is fixedly provided on the top of the cart (1), a spray plate (13) is fixedly provided on the output end of the telescopic tube (12), a plurality of adjustment mechanisms (3) are clamped on the top of the collecting funnel (9), a soil storage box (15) is fixedly provided on the side wall of each adjustment mechanism (3), a soil filling mechanism (5) is provided at the end of each soil storage box (15), a one-way mechanism (6) is provided inside each soil storage box (15), a matching mechanism (4) is provided at the bottom of each soil storage box (15), two slide grooves (2) are provided on the top of the cart (1), and a transmission mechanism (7) is slidably provided inside the two slide grooves (2).

2. A layered and connectable soil permeability test device according to claim 1, characterized in that: Each of the adjustment mechanisms (3) comprises an outer sleeve (31), an inner sleeve (32), a rotating ring (33), two connecting rods (34), a filter 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 filter 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 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).

3. The layered and connectable soil permeability test device according to claim 1 is characterized by: Each of the one-way mechanisms (6) comprises a one-way rack (61), a hollow sleeve rod (62), a return spring (63) and a wedge block (64); the one-way rack (61) is slidably arranged inside the soil storage box (15); the hollow sleeve rod (62) is slidably sleeved on the outer wall of the one-way rack (61); a mounting groove is arranged inside the hollow sleeve rod (62); and the return spring (63) is arranged inside the mounting groove.

4. The layered and connectable soil permeability test device according to claim 3 is characterized by: 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 a 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) is in contact with the clamping ring (36).

5. The layered and connectable soil permeability test device according to claim 4 is characterized by: Each of the soil filling racks (53) and the corresponding soil filling gear (52) are meshed with each other.

6. The layered and connectable soil permeability test device according to claim 1 is characterized by: Each of the matching mechanisms (4) comprises a push rod (41), a wedge 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 contact plate (412); the push rod (41) is fixedly arranged at the end of the arc-shaped telescopic rod; the wedge 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 inside the limiting groove (48); and the other transmission shaft (44) is The driving belt (43) is fixedly arranged at the bottom of the soil filling gear (52), the driving belt (43) is sleeved on three driving 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 outer sleeve (31), the rotating gear (410) is fixedly arranged on the driving 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 contact plate (412) is arranged at the bottom of the wedge plate (42), and the contact plate (412) is in contact with the end of the U-shaped rod (49).

7. The layered and connectable soil permeability test 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 bar (76), two sliding grooves (77) and a transmission motor (78); the two sliding frames (73) are respectively slidably arranged inside 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 respectively arranged on the inner side walls of the two sliding frames (73); the two ends of the cross bar (76) are slidably arranged inside the two sliding grooves (77); the transmission motor (78) is fixedly arranged at the bottom of the cross bar (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 end of the output shaft of the corresponding transmission motor (78); and the limiting column (75) is plugged and arranged at the limiting hole (74) and the end of the cross bar (76).

8. The layered and connectable soil permeability test device according to claim 7 is characterized by: The cross shaft (72) is adapted to the size of a plurality of cross blocks (71).

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