Device for measuring rainfall infiltration depth of side slope

Through the limit insertion rod and guide cylinder structure, the measurement cylinder is ensured to be vertically inserted on the slope and the soil is uniformly penetrated, which solves the problem of inaccurate measurement caused by the inclination of thin-walled steel pipes, and achieves higher-precision infiltration depth measurement.

CN120489899APending Publication Date: 2025-08-15ZHEJIANG SCI RES INST OF TRANSPORT
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Patent Information

Application Number
CN202510770676.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2025-08-15

AI Technical Summary

Technical Problem

When used, the existing slope rainfall infiltration depth measurement device has high verticality requirements for thin-walled steel pipes and is prone to inclination, resulting in inaccurate soil detection and difficulty in insertion, which affects measurement accuracy.

Method used

The limit insertion rod, guide cylinder and adjustment cylinder structure are adopted. The limit insertion rod is a fan-shaped design. The guide cylinder provides guidance. The adjustment cylinder ensures vertical insertion cylinder is inserted through the wire rope and the plug-in rod. The limit insertion rod closes the bottom end of the measuring cylinder to ensure uniform soil infiltration and measurement accuracy.

Benefits of technology

It improves the verticality of the insertion of the measuring barrel and the uniformity of soil infiltration, enhances the measurement accuracy, prevents soil from slipping out and affects detection, simulates real rainfall conditions, and improves the measurement accuracy of infiltration depth.

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Abstract

The invention discloses a side slope rainfall infiltration depth measuring device, and particularly relates to the field of side slope rainfall infiltration measurement, the side slope rainfall infiltration depth measuring device comprises an accumulation body side slope and a measuring cylinder arranged on the accumulation body side slope, the outer side of the measuring cylinder is provided with an installation limiting cylinder, the bottom end of the installation limiting cylinder is provided with a limiting inserting rod, and the limiting inserting rod is provided with a limiting groove. The limiting insertion rod is of a fan-shaped structure, an adjusting barrel is slidably arranged in the mounting limiting barrel, a guide barrel is arranged on the outer side of the upper end of the mounting limiting barrel and fixedly arranged on the accumulation body side slope, a supporting rod is fixedly arranged on the accumulation body side slope, and a shower head is arranged on the supporting rod. According to the invention, the verticality when the mounting limiting cylinder and the measuring cylinder are inserted into the accumulation body slope can be improved, so that the accuracy of the soil depth in the measuring cylinder can be improved, the precision of infiltration depth measurement can be improved, and the influence on the detection precision of the infiltration depth caused by the sliding-out of the soil in the measuring cylinder when the measuring cylinder is pulled out can be prevented.
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Description

Technical Field

[0001] The invention relates to the technical field of slope rainfall infiltration detection, in particular to a device for measuring the depth of slope rainfall infiltration. Background Art

[0002] Currently, new construction projects in mountainous and hilly areas create numerous steep fill slopes to meet site leveling requirements. Fill slopes are complex in composition and have a loose structure, making them susceptible to instability under adverse factors such as rainfall and earthquakes, resulting in significant economic losses.

[0003] Extensive engineering practice and numerical simulation results indicate that the range and scale of fill slope instability are correlated with the critical infiltration depth of atmospheric rainfall. For highly to moderately permeable fill, when rainfall intensities reach 100 mm / day and durations are less than three days, the critical depth of fill slope instability is 6 to 8 meters below the surface. Therefore, measuring and understanding the slope infiltration depth is crucial for construction safety. Current equipment for measuring deposit slopes primarily consists of a thin-walled steel pipe, a locking mechanism, a sprinkler, and a sprinkler support rod. During measurement, workers first use the locking part to splice two thin-walled steel pipes, then drive the thin-walled steel pipes to the specified depth of the slope to be measured, then insert the sprinkler support rod into the slope and fix the sprinkler on the end of the sprinkler support rod. The sprinkler is located directly above the thin-walled steel pipe. After continuous spraying of the sprinkler, the thin-walled steel pipe is deflected laterally to break the internal soil from the root. Then the thin-walled steel pipe is pulled out and the soil is brought up at the same time. Finally, the locking part is unlocked and the infiltration depth under heavy rain is measured.

[0004] However, when using the existing slope rainfall infiltration depth measuring device, since it needs to detect the soil moisture conditions at multiple depths inside the thin-walled steel pipe, it has high requirements on the verticality of the thin-walled steel pipe. If the thin-walled steel pipe is tilted, the soil detection at different depths inside the thin-walled steel pipe will be inaccurate. Moreover, since the bottom end of the thin wall is a flat structure, it is more troublesome to insert it into the slope of the accumulation body, which is more likely to cause the thin-walled steel pipe to tilt. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for measuring the depth of rainfall infiltration on a slope, so as to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A device for measuring the depth of rainfall infiltration on a slope comprises a pile slope and a measuring cylinder arranged on the pile slope, an installation limit cylinder is arranged on the outside of the measuring cylinder, a limit plug rod is arranged on the bottom end of the installation limit cylinder, the limit plug rod is arranged in a fan-shaped structure, an adjustment cylinder is slidingly arranged inside the installation limit cylinder, a guide cylinder is arranged on the outside of the upper end of the installation limit cylinder, the guide cylinder is fixedly arranged on the pile slope, a support rod is fixedly arranged on the pile slope, and a rain sprinkler is arranged on the support rod.

[0008] In a preferred embodiment, the measuring cylinder is composed of two arc-shaped cylinders, each of which is fixed with a connecting block, each of which is embedded with a locking bolt, and each of which is evenly spaced with a plurality of first through holes. The two arc-shaped cylinders are spliced together using the connecting block to facilitate the extraction of soil inside the measuring cylinder.

[0009] In a preferred embodiment, a guide groove is provided on the inner side wall of the installation limit cylinder, and the guide groove matches the connecting block. An annular groove is provided on the installation limit cylinder, and the adjustment cylinder is slidably arranged in the annular groove. A plurality of second through holes are evenly spaced on the installation limit cylinder, and a limiting hole is provided on the outer side wall of the upper end of the installation limit cylinder. A limiting sliding groove is provided on the outer side wall of the installation limit cylinder. The setting of the guide groove enables the connecting block to slide down along the guide groove, thereby enabling the measuring cylinder to dock with the installation limit cylinder, and the setting of the second through hole and the first through hole enables the soil inside the measuring cylinder to contact the soil outside the slope of the accumulation body, thereby ensuring the uniformity of soil infiltration inside the measuring cylinder.

[0010] In a preferred embodiment, a plurality of positioning cones are evenly spaced at the bottom end of the guide cylinder, a limiting rod is threadedly provided on the guide cylinder, and a limiting protrusion is fixedly provided on the inner wall of the guide cylinder, and the limiting protrusion is slidably provided in the limiting groove. The setting of the guide cylinder can guide the installation of the limiting cylinder, and can make the installation of the limiting cylinder pressed down along the guide cylinder, and can ensure the verticality of the installation of the limiting cylinder and the measuring cylinder when inserted, and the setting of the limiting rod can limit the installation of the limiting cylinder, improve the stability of the installation of the limiting cylinder, and prevent the installation of the limiting cylinder from changing in depth due to the displacement change of the soil layer inside the slope of the accumulation body, thereby affecting the measurement accuracy.

[0011] In a preferred embodiment, a third through hole is provided on the adjusting cylinder, and the first through hole, the second through hole and the third through hole match each other, and a plurality of connecting rods are evenly spaced at the bottom end of the adjusting cylinder, and the upper end of the limit plug rod is rotatably set on the inner side wall of the bottom end of the installation limit cylinder, and the upper end of the limit plug rod is provided with a plug hole, and the bottom end of the adjusting cylinder is provided with a steel wire rope located at both ends of each plug rod. Since the adjusting cylinder is slidingly set, when the adjusting cylinder is adjusted to a certain position, the first through hole, the second through hole and the third through hole coincide with each other, so that the soil inside the measuring cylinder contacts the external soil, which can improve the infiltration uniformity of the soil inside the measuring cylinder, and the setting of the plug rod can be inserted into the plug hole to limit the limit plug rod, thereby preventing the limit plug rod from rotating when the installation limit cylinder is inserted into the soil, and the use of the limit plug rod can make it more convenient to install the limit cylinder and insert it into the slope of the accumulation body.

[0012] In a preferred embodiment, connecting shafts are fixedly provided on both sides of the upper end of the limiting plug rod, and the end of the connecting shaft away from the limiting plug rod is rotatably set on the installation groove opened on the inner side wall of the installation limiting cylinder, and a torsion spring is sleeved on the connecting shaft, one end of the torsion spring is fixedly provided on the inner side wall of the limiting plug rod, and the other end of the torsion spring is provided on the inner side wall of the installation groove. The setting of the torsion spring can make the limiting plug rod rotate inward, so that multiple limiting plug rods are closed.

[0013] In a preferred embodiment, the end of the steel wire rope away from the adjusting cylinder is set on a hanging ring, and the hanging ring is rotatably set in a groove opened on the side walls at both ends of the limiting rod, and the steel wire rope can pull the limiting rod to rotate through the hanging ring, and the setting of the groove can prevent the hanging rings from affecting each other when multiple limiting rods are docked.

[0014] In a preferred embodiment, when the plurality of limit rods are adjusted to a horizontal state, the upper surfaces contact the side wall of the bottom end of the measuring tube, and when two adjacent limit rods are adjusted to a horizontal state, they contact and fit each other. When the plurality of limit rods are rotated to a horizontal state, they can be closed to close the bottom end of the measuring tube, thereby preventing the soil inside the measuring tube from slipping out and affecting the detection efficiency of the infiltration depth.

[0015] In a preferred embodiment, pull rods are fixedly provided on both sides of the upper end of the adjusting cylinder, and a handle is fixedly provided on the upper end of the pull rod. A limit hole is provided on the installation limit cylinder, and two positioning holes matching the limit hole are provided on the adjusting cylinder. The setting of the pull rod and the handle facilitates the adjustment of the height of the adjusting cylinder. The difference in the height of the adjusting cylinder can be used to fix the limit rod or adjust the angle of the limit rod. The setting of the limit hole and the positioning hole can fix the adjusting cylinder after the position is adjusted.

[0016] In a preferred embodiment, the sprinkler is connected to a water source through a pipe and a water pump, and a regulating valve is provided on the pipe. The regulating valve controls the water flow through a controller. The opening of the regulating valve is controlled by the controller to simulate the rainfall in different time periods. The sprinkler is located directly above the measuring cylinder to ensure uniform rainfall.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with an installation limit cylinder, a guide cylinder and a limit plug rod. The limit plug rod is a fan-shaped structure, and the bottom end of the limit plug rod is a pointed structure. When inserted into the slope of the accumulation body, the limit plug rod can assist in the insertion of the installation limit cylinder and the measuring cylinder, reduce the shaking of the installation limit cylinder and the measuring cylinder, and make the measuring cylinder better inserted into the slope of the accumulation body. Moreover, the setting of the guide cylinder can make the installation limit cylinder press down along the guide cylinder, which can improve the verticality of the installation limit cylinder and the measuring cylinder when inserted into the slope of the accumulation body, thereby improving the accuracy of the soil depth inside the measuring cylinder and the accuracy of the infiltration depth measurement. Moreover, in the simulated infiltration process, the limit rod inside the guide cylinder can limit the installation limit cylinder, which can prevent the depth of the installation limit cylinder from changing when the soil layer inside the slope of the accumulation body is displaced, thereby improving the inside of the measuring cylinder;

[0019] 2. The present invention is provided with structures such as an adjusting cylinder, a steel wire rope, a connecting rod, a connecting shaft, a torsion spring, a hanging ring, and a limit rod. When the limit rod is in a vertical state, it can assist in installing the limit cylinder and the measuring cylinder and insert them into the slope of the accumulation body, and the adjusting cylinder can pull the multiple limit rods to rotate to a horizontal state, so that the multiple limit rods are closed. The closed limit rods can close the bottom end of the measuring cylinder, which can prevent the internal soil from slipping out when the measuring cylinder is pulled out, affecting the detection accuracy of the infiltration depth. Moreover, the through hole on the adjusting cylinder can connect the soil inside the measuring cylinder with the external soil, and rainwater in the external soil can enter the interior of the measuring cylinder through the through hole, which can better simulate rainfall conditions and make the soil inside the measuring cylinder infiltrate evenly, thereby improving the infiltration measurement accuracy of the slope of the accumulation body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the structure at center A;

[0022] Figure 3 It is a structural schematic diagram of the measuring tube of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the installation of the limiting cylinder of the present invention;

[0024] Figure 5It is a structural schematic diagram of the regulating cylinder of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the present invention after the limiting rod is closed;

[0026] Figure 7 It is a structural schematic diagram of the limiting rod of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the guide cylinder of the present invention.

[0028] Numbers in the figure: 1, accumulation body slope; 2, measuring cylinder; 201, arc cylinder; 202, connecting block; 203, first through hole; 3, installation limit cylinder; 301, guide groove; 302, annular groove; 303, second through hole; 304, limit hole; 305, limit slide; 306, limit plug; 4, limit plug rod; 401, plug hole; 402, connecting shaft; 403, torsion spring; 4 04. Hanging ring; 405. Groove; 5. Adjusting cylinder; 501. Third through hole; 502. Connecting rod; 503. Wire rope; 504. Mounting slot; 505. Pull rod; 506. Handle; 507. Positioning hole; 6. Guide cylinder; 601. Positioning cone; 602. Limit rod; 603. Limiting bump; 7. Support rod; 8. Sprinkler; 9. Pipeline; 10. Water pump; 11. Regulating valve. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example: See Figures 1-8 The present invention provides a device for measuring the depth of rainfall infiltration on a slope, and the technical solution is as follows:

[0031] A device for measuring the depth of rainfall infiltration on a slope comprises an accumulation body slope 1 and a measuring cylinder 2 arranged on the accumulation body slope 1, an installation limit cylinder 3 is arranged on the outside of the measuring cylinder 2, a limit plug rod 4 is arranged at the bottom end of the installation limit cylinder 3, and the limit plug rod 4 is arranged in a fan-shaped structure, an adjustment cylinder 5 is slidingly arranged inside the installation limit cylinder 3, a guide cylinder 6 is arranged on the outside of the upper end of the installation limit cylinder 3, the guide cylinder 6 is fixedly arranged on the accumulation body slope 1, a support rod 7 is fixedly arranged on the accumulation body slope 1, and a rain sprinkler 8 is arranged on the support rod 7.

[0032] In a preferred embodiment, the measuring cylinder 2 is composed of two arc-shaped cylinders 201, and a connecting block 202 is fixedly provided on each of the two arc-shaped cylinders 201. A locking bolt is embedded in the connecting block 202. A plurality of first through holes 203 are evenly spaced apart on each of the two arc-shaped cylinders 201. The two arc-shaped cylinders 201 can be spliced together using the connecting block 202. After the test is completed, the two arc-shaped cylinders 201 are separated and the soil inside the measuring cylinder 2 can be taken out.

[0033] In a preferred embodiment, a guide groove 301 is provided on the inner side wall of the installation limit cylinder 3, and the guide groove 301 matches the connecting block 202. An annular groove 302 is provided on the installation limit cylinder 3, and the adjustment cylinder 5 is slidably set in the annular groove 302. A plurality of second through holes 303 are evenly spaced on the installation limit cylinder 3, a limiting hole 304 is provided on the outer side wall of the upper end of the installation limit cylinder 3, and a limiting sliding groove 305 is provided on the outer side wall of the installation limit cylinder 3. The bottom end of the guide cylinder 6 is evenly spaced with a number of positioning cones 601, a limit rod 602 is threadedly provided on the guide cylinder 6, and a limit protrusion 603 is fixedly provided on the inner side wall of the guide cylinder 6, and the limit protrusion 603 is slidably provided in the limit slide groove 305, and the adjusting cylinder 5 is provided with a third through hole 501, and the first through hole 203, the second through hole 303 and the third through hole 501 match, and the bottom end of the adjusting cylinder 5 is evenly spaced with a number of connecting rods 502, and the upper end of the limiting plug rod 4 is rotatably provided on the inner side wall of the bottom end of the limiting cylinder 3, and the upper end of the limiting plug rod 4 is provided with a plug hole 401, and the bottom end of the adjusting cylinder 5 is provided with a steel wire rope 503 located at both ends of each connecting rod 502. Connecting shafts 402 are fixedly provided on both sides of the upper end of the limiting plug rod 4. The end of the connecting shaft 402 away from the limiting plug rod 4 is rotatably set on the installation groove 504 opened on the inner wall of the installation limiting cylinder 3, and a torsion spring 403 is sleeved on the connecting shaft 402. One end of the torsion spring 403 is fixedly provided on the inner wall of the limiting plug rod 4, and the other end of the torsion spring 403 is provided on the inner wall of the installation groove 504.

[0034] When installing specifically, bend the limiting plug rod 4 straight before installation, so that the limiting plug rod 4 moves vertically downward, and the adjusting cylinder 5 moves downward, so that the plug rod 502 at the bottom end of the adjusting cylinder 5 is inserted into the plug hole 401 at the upper end of the limiting plug rod 4, and the adjusting cylinder 5 is fixed with the locking screw, and then the installation limiting cylinder 3 is sleeved on the outside of the measuring cylinder 2. When sleeved, the connecting block 202 on the outside of the measuring cylinder 2 is slid into the installation limiting cylinder 3 along the guide groove 301. After the measuring cylinder 2 is completely slid into the inside of the installation limiting cylinder 3, the installation limiting cylinder 3 and the measuring cylinder 2 are fixed with the locking screw, and then the limiting slide groove 305 on the outside of the installation limiting cylinder 3 is pressed down along the limiting protrusion 603 on the inner side of the guide cylinder 6, so that the limiting plug rod 4 is inserted into the side slope 1 of the accumulation body, and the installation limiting cylinder 3 is vertically inserted into the side slope 1 of the accumulation body;

[0035] When taking out, loosen the locking screw used to fix the adjusting cylinder 5, use the handle 506 to lift the adjusting cylinder 5 upward, so that the connecting rod 502 is pulled out of the connecting hole 401, and continue to move the adjusting cylinder 5 upward. The wire rope 503 at the bottom end of the adjusting cylinder 5 pulls the hanging ring 404 and the limit plug 4 to rotate, and the torsion spring 403 can also make the limit plug 4 rotate, so that multiple limit plugs 4 are rotated to a horizontal state. After the multiple limit plugs 4 are closed, the bottom end of the measuring cylinder 2 can be blocked, and then the installation limit cylinder 3 and the measuring cylinder 2 are taken out from the slope 1 of the accumulation body, the measuring cylinder 2 is separated from the installation limit cylinder 3, the two arc cylinders 201 in the measuring cylinder 2 are separated, and the soil of the corresponding depth is sampled and tested.

[0036] In a preferred embodiment, the end of the wire rope 503 away from the adjusting cylinder 5 is set on the hanging ring 404, and the hanging ring 404 is rotatably set in the groove 405 opened on the side walls of both ends of the limiting rod 4. The setting of the hanging ring 404 is convenient for connecting with the wire rope 503, and the setting of the groove 405 can prevent the hanging ring 404 from being damaged when multiple limiting rods 4 are closed and docked.

[0037] In a preferred embodiment, when the plurality of limit rods 4 are adjusted to a horizontal state, the upper surfaces are in contact with the bottom side wall of the measuring tube 2, and when two adjacent limit rods 4 are adjusted to a horizontal state, they are in contact with each other and fit together. When the plurality of limit rods 4 are in a vertical state, they can assist the measuring tube 2 in being inserted into the slope 1 of the accumulation body, and when the limit rods 4 are rotated to a horizontal state, they can fit together and seal the open structure at the bottom end of the measuring tube 2, thereby preventing the soil inside the measuring tube 2 from leaking out.

[0038] In a preferred embodiment, pull rods 505 are fixedly provided on both sides of the upper end of the adjusting cylinder 5, and a handle 506 is fixedly provided on the upper end of the pull rod 505. A limiting socket 306 is provided on the installation limit cylinder 3, and two positioning holes 507 matching the limiting socket 306 are provided on the adjusting cylinder 5. The two positioning holes 507 correspond to the two positions of the adjusting cylinder 5 respectively, and the two positions of the adjusting cylinder 5 are two positions of the limiting plug rod 4 in the vertical state and the horizontal state respectively.

[0039] In a preferred embodiment, the sprinkler 8 is connected to a water source through a pipe 9 and a water pump 10, and a regulating valve 11 is provided on the pipe 9. The regulating valve 11 controls the water flow through a controller. The water pump 10 can pump the reserved water source through the pipe 9 to the sprinkler 8, and the sprinkler 8 is used to simulate rainfall.

[0040] Working principle of the present invention:

[0041] Before installation, straighten the limiting rod 4 at the bottom of the installation limiting cylinder 3 so that the limiting rod 4 is in a vertical state, then press down the adjusting cylinder 5 so that the plug rod 502 at the bottom of the adjusting cylinder 5 is inserted into the plug hole 401 at the upper end of the limiting rod 4, and use the locking screw to fix the adjusting cylinder 5 to the installation limiting cylinder 3. At this time, the first through hole 203, the second through hole 303 and the third through hole 501 coincide with each other;

[0042] Connect the connecting blocks 202 at the upper ends of the two arc-shaped cylinders 201 and fix the two connecting blocks 202 together with locking bolts to complete the assembly of the measuring cylinder 2;

[0043] Then, the assembled measuring cylinder 2 is inserted into the installation limiting cylinder 3. When inserting, the connecting block 202 on the outer side of the measuring cylinder 2 is slid into the installation limiting cylinder 3 along the guide groove 301. After the measuring cylinder 2 is completely inserted into the installation limiting cylinder 3, the installation limiting cylinder 3 and the measuring cylinder 2 are fixed with the locking screw to complete the installation of the measuring cylinder 2 and the installation limiting cylinder 3.

[0044] The guide cylinder 6 is fixed on the pile slope 1. The multiple positioning cones 601 at the bottom of the guide cylinder 6 are inserted into the pile slope 1 to fix the guide cylinder 6. Long screws can also be screwed into the guide cylinder 6 and the pile slope 1 to enhance the stability of the guide cylinder 6.

[0045] Press the limiting groove 305 on the outside of the installation limiting cylinder 3 down along the limiting protrusion 603 on the inside of the guide cylinder 6, so that the limiting rod 4 is inserted into the pile slope 1, and the installation limiting cylinder 3 is vertically inserted into the pile slope 1;

[0046] After the installation limiting cylinder 3 is inserted into the preset position of the pile slope 1, the limiting rod 602 on the inner side of the guide cylinder 6 is rotated so that the limiting rod 602 is inserted into the limiting insertion hole 306 on the outer side wall of the installation limiting cylinder 3, and the installation limiting cylinder 3 is limited by the limiting rod 602;

[0047] The support rod 7 is fixed on the side slope 1 of the accumulation body, and the rain sprinkler 8 is set just above the measuring cylinder 2. The water pump 10 is started. The water pump 10 pumps the water source to the rain sprinkler 8 through the pipe 9. The rain sprinkler 8 is used to spray water, which can simulate rainfall. According to the actual rainfall situation, the opening of the regulating valve 11 is controlled by the controller to better simulate the rainfall amount. The water sprayed by the rain sprinkler 8 falls on the side slope 1 of the accumulation body and the measuring cylinder 2. The water enters the soil and infiltrates. Since the first through hole 203, the second through hole 303 and the third through hole 501 coincide with each other at this time, the soil inside the measuring cylinder 2 is connected to the soil outside the installation limit cylinder 3, which can make the infiltration uniform.

[0048] When the sprinkler 8 has worked for a period of time and reaches the preset value, the water pump 10 is turned off to stop the rainfall. Then the locking screw of the regulating cylinder 5 is unscrewed, and the handle 506 is lifted upward to move the regulating cylinder 5 upward. When the regulating cylinder 5 moves upward, the plug rod 502 can be pulled out of the plug hole 401, and the limit plug rod 4 loses the limiting effect of the plug rod 502 and rotates inwardly under the action of the torsion spring 403. Moreover, when the regulating cylinder 5 is pulled upward, the regulating cylinder 5 can drive the limit plug rod 4 to move inwardly through the wire rope 503 and the hanging ring 404. When the regulating cylinder 5 is pulled upward, the limit plug rod 4 can be driven to move inwardly through the wire rope 503 and the hanging ring 404. When the cylinder 5 moves upward to a certain distance, the limit rod 4 rotates from a vertical state to a horizontal state, and the multiple limit rods 4 close to seal the open structure at the bottom end of the measuring cylinder 2. Then, the adjusting cylinder 5 is fixed again with the locking screw, which can prevent the soil inside the measuring cylinder 2 from sliding out when the measuring cylinder 2 is pulled out, affecting the measurement accuracy of the infiltration depth. At this time, the third through hole 501 on the adjusting cylinder 5 staggers the first through hole 203 and the second through hole 303, preventing the soil outside the installation limit cylinder 3 from exchanging with the soil inside the measuring cylinder 2 when the measuring cylinder 2 is pulled out, affecting the detection of the infiltration depth.

[0049] Rotate the limit rod 602 on the guide cylinder 6 in the opposite direction to pull the limit rod 602 out of the limit socket 306, and then pull out the installation limit cylinder 3 and the measuring cylinder 2 from the pile slope 1. After the installation limit cylinder 3 is pulled out, unscrew the locking screw to separate the installation limit cylinder 3 from the measuring cylinder 2, and the connecting block 202 at the outer end of the measuring cylinder 2 slides out of the guide groove 301, and then unscrew the locking bolt at the connecting block 202, separate the two arc cylinders 201, take the soil of the corresponding depth for measurement, and the infiltration depth of the pile slope 1 can be known.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A device for measuring the depth of rainfall infiltration on a slope, comprising a pile slope (1) and a measuring tube (2) arranged on the pile slope (1), characterized in that: The outer side of the measuring cylinder (2) is provided with an installation limit cylinder (3), the bottom end of the installation limit cylinder (3) is provided with a limit rod (4), the limit rod (4) is provided with a fan-shaped structure, the interior of the installation limit cylinder (3) is provided with an adjustment cylinder (5) for sliding, the outer side of the upper end of the installation limit cylinder (3) is provided with a guide cylinder (6), the guide cylinder (6) is fixedly provided on the side slope of the accumulation body (1), the side slope of the accumulation body (1) is fixedly provided with a support rod (7), and the support rod (7) is provided with a rain sprinkler (8).

2. The device for measuring the depth of rainfall infiltration on a slope according to claim 1, characterized in that: The measuring cylinder (2) is composed of two arc-shaped cylinders (201), each of which is fixed with a connecting block (202), a locking bolt embedded in the connecting block (202), and a plurality of first through holes (203) evenly spaced apart are provided on each of the arc-shaped cylinders (201).

3. The device for measuring the depth of rainfall infiltration on a slope according to claim 2, characterized in that: A guide groove (301) is provided on the inner side wall of the installation limit cylinder (3), and the guide groove (301) matches the connecting block (202). An annular groove (302) is provided on the installation limit cylinder (3), and the adjustment cylinder (5) is slidably arranged in the annular groove (302). A plurality of second through holes (303) are evenly spaced on the installation limit cylinder (3). A limiting hole (304) is provided on the outer side wall of the upper end of the installation limit cylinder (3), and a limiting sliding groove (305) is provided on the outer side wall of the installation limit cylinder (3).

4. The device for measuring the depth of rainfall infiltration on a slope according to claim 3, characterized in that: The bottom end of the guide cylinder (6) is evenly spaced with a plurality of positioning cones (601), a limiting rod (602) is threadedly provided on the guide cylinder (6), and a limiting protrusion (603) is fixedly provided on the inner side wall of the guide cylinder (6), and the limiting protrusion (603) is slidably provided in the limiting sliding groove (305).

5. The device for measuring the depth of rainfall infiltration into a slope according to claim 4, characterized in that: The adjusting cylinder (5) is provided with a third through hole (501), and the first through hole (203), the second through hole (303) and the third through hole (501) match each other. The bottom end of the adjusting cylinder (5) is provided with a plurality of plug rods (502) at even intervals. The upper end of the limiting plug rod (4) is rotatably mounted on the inner side wall of the bottom end of the limiting cylinder (3). The upper end of the limiting plug rod (4) is provided with a plug hole (401). The bottom end of the adjusting cylinder (5) is provided with steel wire ropes (503) located at both ends of each plug rod (502).

6. The device for measuring the depth of rainfall infiltration on a slope according to claim 5, characterized in that: Connecting shafts (402) are fixedly provided on both sides of the upper end of the limiting plug rod (4), and one end of the connecting shaft (402) away from the limiting plug rod (4) is rotatably provided on a mounting groove (504) provided on the inner side wall of the mounting limiting cylinder (3), and a torsion spring (403) is sleeved on the connecting shaft (402), one end of the torsion spring (403) is fixedly provided on the inner side wall of the limiting plug rod (4), and the other end of the torsion spring (403) is provided on the inner side wall of the mounting groove (504).

7. The device for measuring the depth of rainfall infiltration into a slope according to claim 5, characterized in that: One end of the steel wire rope (503) away from the regulating cylinder (5) is arranged on a hanging ring (404), and the hanging ring (404) is rotatably arranged in grooves (405) provided on the side walls at both ends of the limiting plug rod (4).

8. The device for measuring the depth of rainfall infiltration on a slope according to claim 7, characterized in that: When the plurality of limit rods (4) are adjusted to a horizontal state, their upper surfaces contact the side wall of the bottom end of the measuring cylinder (2), and when two adjacent limit rods (4) are adjusted to a horizontal state, they contact and fit each other.

9. The device for measuring the depth of rainfall infiltration into a slope according to claim 4, characterized in that: Pull rods (505) are fixedly provided on both sides of the upper end of the adjusting cylinder (5), and a handle (506) is fixedly provided on the upper end of the pulling rod (505). A limiting plug hole (306) is provided on the installation limiting cylinder (3), and two positioning holes (507) matching the limiting plug holes (306) are provided on the adjusting cylinder (5).

10. The device for measuring the depth of rainfall infiltration on a slope according to claim 1, characterized in that: The rain sprinkler (8) is connected to a water source via a pipe (9) and a water pump (10), and a regulating valve (11) is provided on the pipe (9), and the regulating valve (11) controls the water flow rate via a controller.