A sampling device for undisturbed slip zone soil on bedding slopes

Abstract

This invention discloses a sampling device for undisturbed slip zone soil on a bedding slope, relating to the field of slip zone soil sampling technology. It includes an inserted hollow cylinder, with a mounting frame fixedly connected to the outer wall near the top of the hollow cylinder. The mounting frame is equipped with an inner support pressing and shaping mechanism. The device involves drilling and slotting the hollow cylinder, placing it into the slot, and adjusting a hydraulic cylinder to drive an inner support plate to compress and shape a localized area within the slot. This prevents the slip zone soil from sliding on the inner wall of the slot, which could lead to layering issues. Simultaneously, after the inner support plate is positioned, a sampling point pressure plate, under the action of a positioning spring rod, elastically positions the slip zone soil at the sampling point, preventing excessive compression that could alter the soil structure. During sampling, adjusting a hydraulic cylinder causes a rotating sampling plate to separate from the guide plate, allowing the slip zone soil to fall from the rotating hole, achieving effective layered collection.

Description

Technical Field

[0001] This invention relates to the field of slip zone soil sampling technology, and in particular to a device for sampling undisturbed slip zone soil along a bedding slope. Background Technology

[0002] Slip zone soil is a relatively weak layer within a landslide that actually undergoes shear displacement. It is usually thin (a few centimeters to tens of centimeters), with heterogeneous material composition and structure (it may contain clay, silt, debris, etc.), and is often in a soft plastic or fluid plastic state.

[0003] When using existing undisturbed slip zone soil sampling devices for bedding slopes, the slip zone soil, being in a soft plastic or fluid plastic state, will shift in position after trenching. This results in deviations in the samples collected at different heights, with slip zone soil from different heights being mixed together. This causes deviations in the composition ratio of the slip zone soil, making the collected slip zone soil not undisturbed and reducing the usability of the sampling device. Summary of the Invention

[0004] This invention discloses a sampling device for undisturbed slip zone soil on bedding slopes, aiming to solve the technical problem that existing sampling devices for undisturbed slip zone soil on bedding slopes, when used, will experience positional displacement due to the slip zone soil being in a soft plastic or fluid plastic state after trenching. This results in deviations in the samples collected at different heights, and the slip zone soil from different heights being mixed together, causing deviations in the composition ratio of the slip zone soil and making the collected slip zone soil not undisturbed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sampling device for undisturbed slip zone soil on a bedding slope includes an inserted hollow cylinder. A mounting frame is fixedly connected to the outer wall of the inserted hollow cylinder near its top. The mounting frame is equipped with an internal support pressing and shaping mechanism. The internal support pressing and shaping mechanism includes an internal support plate. A hydraulic cylinder is fixedly connected to the side of the mounting frame facing the internal support plate. The output end of the hydraulic cylinder is fixedly connected to one side of the internal support plate. Sampling holes are evenly spaced on the internal support plate. An adjusting slide rail is fixedly connected to the side wall of the internal support plate above each sampling hole. A self-sliding slider is slidably connected inside each adjusting slide rail. Each of the components has an integrated plate fixedly connected to its bottom. On the side of the integrated plate facing the sampling hole, positioning spring rods are fixedly connected at equal intervals. One end of each of the multiple positioning spring rods is fixedly connected to the same sampling point pressure plate. The sampling point pressure plate has a flipping hole, and the top inner wall of the flipping hole is connected to a flipping sampling piece via a hinge. The bottom inner wall of the flipping hole is fixedly connected to a fitting guide piece. The sampling point pressure plate is fixedly connected to a fixing block facing the outer wall of the hollow cylinder. The bottom of the fixing block is connected to a hydraulic cylinder three via a hinge. The output end of the hydraulic cylinder three is connected to the outer wall of the flipping sampling piece via a hinge.

[0007] In a preferred embodiment, a connecting frame is fixedly connected to the top of the adjusting slide rail, and a hydraulic cylinder two is fixedly connected to the side of the connecting frame facing the integrated plate. A rear abutment block is fixedly connected to the output end of the hydraulic cylinder two.

[0008] In a preferred embodiment, an unfolding plate is fixedly connected to the top of the hollow cylinder, and a fixing hole is opened on the arc surface of the hollow cylinder away from the inner support plate, with a lifting rail fixedly connected inside the fixing hole.

[0009] In a preferred embodiment, the lifting rail is provided with a cooperating fixing mechanism on the side away from the inner support plate, and the cooperating fixing mechanism includes an external frame, which is fixedly connected to one side of the lifting rail.

[0010] In a preferred embodiment, a forward and reverse motor is fixedly connected to one side of the external frame, and the output shaft of the forward and reverse motor is fixedly connected to a rotating column via a coupling. One end of the rotating column is connected to the inner wall of one side of the external frame via a bearing, and a connecting rod is fixedly connected to the outer wall of the rotating column.

[0011] In a preferred embodiment, a parallel arc rod is fixedly connected to the end of the connecting rod away from the outer frame, and compression spring rods are fixedly connected at equal intervals on the arc surface of the parallel arc rod. One end of the multiple compression spring rods is fixedly connected to the same rotating pressure plate.

[0012] In a preferred embodiment, an end block is fixedly connected to the lifting rail, and a lifting cylinder is fixedly connected to the side of the end block facing the inside of the lifting rail. A lifting slider is fixedly connected to the output end of the lifting cylinder.

[0013] In a preferred embodiment, an elongated hole is provided on the arc surface of the hollow cylinder facing the inner support plate, and a multi-layer sampling mechanism is provided on the side of the lifting slider facing the elongated hole, the multi-layer sampling mechanism including a sampling tube.

[0014] In a preferred embodiment, the sampling tube is fixedly connected with tiered sampling hoppers at equal intervals inside, and the bottom of each tiered sampling hopper is connected to a discharge valve via a flange, and the bottom of the sampling tube is open.

[0015] In a preferred embodiment, a collection hopper is hinged to the outer wall of the sampling tube near its top end, and a connecting spring is fixedly connected to the downward-facing arc surface of the collection hopper. One end of the connecting spring is fixedly connected to the outer wall of the sampling tube. The same shaft frame is fixedly connected to both sides of the collection hopper near its top end, and a drive motor is fixedly connected to one side of the shaft frame. The output shaft of the drive motor is fixedly connected to a rotating shaft via a coupling. Elastic connecting rods are fixedly connected at equal intervals to the outer wall of the rotating shaft, and a striking ball is fixedly connected to one end of each elastic connecting rod.

[0016] The present invention provides a sampling device for undisturbed slip zone soil on a bedding slope. After drilling and slotting, a hollow cylinder is placed into the pit. A hydraulic cylinder is adjusted to drive an inner support plate to compress and shape a local area in the pit, preventing the slip zone soil from sliding on the inner wall of the pit and causing layering disorder. At the same time, after the inner support plate is positioned, the sampling point pressure plate elastically positions the slip zone soil at the sampling point under the action of the positioning spring rod, avoiding excessive compression that may change the structure of the slip zone soil. During sampling, a hydraulic cylinder is adjusted to drive the flipping sampling plate to separate from the matching guide plate, so that the slip zone soil falls from the flipping hole, achieving the technical effect of effective layered collection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a sampling device for undisturbed slip zone soil on a bedding slope proposed in this invention.

[0018] Figure 2 for Figure 1 A top view of the overall structure.

[0019] Figure 3 This is a schematic diagram of the combined structure of the hollow cylinder and the inner support pressing and shaping mechanism of the sampling device for undisturbed slip zone soil of a bedding slope proposed in this invention.

[0020] Figure 4 This is a schematic diagram of the combined structure of the sampling point pressure plate, the flipping sampling plate, and the conforming guide plate of the sampling device for undisturbed slip zone soil of a bedding slope proposed in this invention.

[0021] Figure 5 for Figure 4 A breakdown diagram of the adjustable slide rail and sliding block structure.

[0022] Figure 6 This is a diagram showing the fixing mechanism of a sampling device for undisturbed slip zone soil on a bedding slope proposed in this invention.

[0023] Figure 7 This is a schematic diagram of the combined structure of the lifting rail and multi-layer sampling mechanism of the original slip zone soil sampling device for bedding slope proposed in this invention.

[0024] Figure 8 This is a structural breakdown diagram of the sampling tube and layered sampling bucket of a sampling device for undisturbed slip zone soil on a bedding slope proposed in this invention.

[0025] In the diagram: 1. Inserted into the hollow cylinder; 2. Matching fixing mechanism; 201. Rotating pressure plate; 202. External frame; 203. Rotating column; 204. Forward and reverse motor; 205. Parallel arc rod; 206. Connecting rod; 207. Compression spring rod; 3. Lifting rail; 4. Mounting frame; 5. Unfolding plate; 6. Internal support pressing and shaping mechanism; 601. Internal support plate; 602. Flipping sampling piece; 603. Sampling point pressure plate; 604. Hydraulic cylinder one; 605. Positioning spring rod; 606. Integration plate; 607. Adjusting slide rail; 608. 609. Connecting frame; 610. Hydraulic cylinder II; 611. Rear abutment block; 612. Fitting guide plate; 613. Hydraulic cylinder III; 614. Fixing block; 615. Self-sliding block; 7. Lifting block; 8. Multi-layer sampling mechanism; 801. Sampling tube; 802. Connecting spring; 803. Collection hopper; 804. Drive motor; 805. Elastic connecting rod; 806. Striking ball; 807. Rotating shaft; 808. Shaft bracket; 809. Discharge valve; 810. Layered sampling hopper; 9. Long strip hole; 10. End block; 11. Lifting cylinder. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] The present invention discloses a sampling device for undisturbed slip zone soil of bedding slopes. It is mainly applied to the existing sampling devices for undisturbed slip zone soil of bedding slopes. After the grooving is done, the slip zone soil is in a soft plastic or fluid plastic state, which will cause positional displacement. Therefore, the samples collected at different heights will have deviations. The slip zone soil at different heights will be mixed together, which will cause deviations in the composition ratio of the slip zone soil. This will result in the collected slip zone soil not being undisturbed.

[0028] Reference Figures 1-8A sampling device for undisturbed slip zone soil on a bedding slope includes an inserted hollow cylinder 1. A mounting frame 4 is fixedly connected to the outer wall of the inserted hollow cylinder 1 near its top. The mounting frame 4 is equipped with an inner support pressing and shaping mechanism 6, which includes an inner support plate 601. A hydraulic cylinder 604 is fixedly connected to the side of the mounting frame 4 facing the inner support plate 601. The output end of the hydraulic cylinder 604 is fixedly connected to one side of the inner support plate 601. Sampling holes are evenly spaced on the inner support plate 601. An adjusting slide rail 607 is fixedly connected to the side wall of the inner support plate 601 above each sampling hole. A self-sliding slider 614 is slidably connected inside each adjusting slide rail 607. An integrated plate 606 is fixedly connected to the bottom of each component. Positioning spring rods 605 are fixedly connected at equal intervals on the side of the integrated plate 606 facing the sampling hole. One end of each of the multiple positioning spring rods 605 is fixedly connected to the same sampling point pressure plate 603. The sampling point pressure plate 603 has a flipping hole, and the top inner wall of the flipping hole is connected to a flipping sampling piece 602 via a hinge. The bottom inner wall of the flipping hole is fixedly connected to a fitting guide piece 611. A fixing block 613 is fixedly connected to the outer wall of the sampling point pressure plate 603 facing the hollow cylinder 1. The bottom of the fixing block 613 is connected to a hydraulic cylinder 612 via a hinge. The output end of the hydraulic cylinder 612 is connected to the outer wall of the flipping sampling piece 602 via a hinge.

[0029] In specific application scenarios, after drilling and slotting, the hollow cylinder 1 is placed into the pit. The hydraulic cylinder 604 is adjusted to drive the inner support plate 601 to squeeze and shape a local area in the pit, preventing the slip zone soil from sliding on the inner wall of the pit and causing layering disorder. At the same time, after the inner support plate 601 is positioned, the sampling point pressure plate 603 is elastically positioned by the positioning spring rod 605 to prevent excessive compression from changing the structure of the slip zone soil. During sampling, the hydraulic cylinder 612 is adjusted to drive the flipping sampling plate 602 to separate from the matching guide plate 611, so that the slip zone soil falls from the flipping hole, which can complete the effective layered collection.

[0030] Specifically, the upper and lower parts of the sampling point pressure plate 603 are positioned and shaped by the inner support plate 601, thus ensuring that the upper and lower parts of the sampling point pressure plate 603 are in a tight compression state, preventing the slip zone soil from flowing.

[0031] Reference Figures 1-5 In a preferred embodiment, a connecting frame 608 is fixedly connected to the top of the adjusting slide rail 607, and a hydraulic cylinder 609 is fixedly connected to the side of the connecting frame 608 facing the integrated plate 606. A rear abutment block 610 is fixedly connected to the output end of the hydraulic cylinder 609.

[0032] Reference Figure 1 , Figure 2 and Figure 7In a preferred embodiment, an unfolding plate 5 is fixedly connected to the top of the hollow cylinder 1, and a fixing hole is opened on the arc surface of the hollow cylinder 1 away from the inner support plate 601, and a lifting rail 3 is fixedly connected inside the fixing hole.

[0033] Reference Figure 1 and Figure 6 In a preferred embodiment, the lifting rail 3 is provided with a cooperating fixing mechanism 2 on the side away from the inner support plate 601, and the cooperating fixing mechanism 2 includes an outer frame 202, which is fixedly connected to one side of the lifting rail 3.

[0034] Reference Figure 6 In a preferred embodiment, a forward and reverse motor 204 is fixedly connected to one side of the external frame 202, and the output shaft of the forward and reverse motor 204 is fixedly connected to a rotating column 203 via a coupling. One end of the rotating column 203 is connected to the inner wall of one side of the external frame 202 via a bearing. A connecting rod 206 is fixedly connected to the outer wall of the rotating column 203. A parallel arc rod 205 is fixedly connected to the end of the connecting rod 206 away from the external frame 202. Compression spring rods 207 are fixedly connected at equal intervals on the arc surface of the parallel arc rod 205. One end of multiple compression spring rods 207 is fixedly connected to the same rotating pressure plate 201.

[0035] Specifically, after the hollow cylinder 1 is placed inside the pit, the forward and reverse motor 204 is started. The forward and reverse motor 204 drives the parallel arc rod 205 to rotate, which in turn drives the rotating pressure plate 201 to rotate. During the rotation, the rotating pressure plate 201 contacts and presses against the inner wall of the pit, thus passively compressing the spring rod 207. When the center point of the rotating pressure plate 201 is in close contact with the inner wall of the pit, the hollow cylinder 1 is stably positioned, ensuring the stability of the sampling process.

[0036] Reference Figure 1 , Figure 7 and Figure 8 In a preferred embodiment, an end block 10 is fixedly connected to the lifting rail 3, and a lifting cylinder 11 is fixedly connected to the side of the end block 10 facing the inside of the lifting rail 3. A lifting slider 7 is fixedly connected to the output end of the lifting cylinder 11.

[0037] Reference Figure 1 , Figure 7 and Figure 8In a preferred embodiment, an elongated hole 9 is provided on the arc surface of the hollow cylinder 1 facing the inner support plate 601, and a multi-layer sampling mechanism 8 is provided on the side of the lifting slider 7 facing the elongated hole 9. The multi-layer sampling mechanism 8 includes a sampling tube 801, and layered sampling hoppers 810 are fixedly connected at equal intervals inside the sampling tube 801. The bottom of each layered sampling hopper 810 is connected to a discharge valve 809 through a flange, and the bottom of the sampling tube 801 is open.

[0038] It should be noted that during stratified sampling, after adjusting the lifting cylinder 11 to move the sampling tube 801 to the corresponding position, the drive motor 804 is started. The drive motor 804 drives the striking balls 806 on each elastic connecting rod 805 to strike the sampling point pressure plate 603, making the slippery soil at the sampling point pressure plate 603 in an easy-to-fall-off state. Then, the hydraulic cylinder 612 is adjusted to drive the flipping sampling plate 602 to separate from the matching guide plate 611. The slippery soil slides from the matching guide plate 611 into the collection hopper 803 and then into the sampling tube 801. The two discharge valves 809 located at the top are in the open state, so the slippery soil slides directly to the bottom stratified sampling hopper 810 to complete the first layer sampling. Subsequent sampling repeats the above operation.

[0039] Reference Figure 8 In a preferred embodiment, a collection hopper 803 is hinged to the outer wall of the sampling tube 801 near the top. A connecting spring 802 is fixedly connected to the downward-facing arc surface of the collection hopper 803. One end of the connecting spring 802 is fixedly connected to the outer wall of the sampling tube 801. The same shaft bracket 808 is fixedly connected to both sides of the collection hopper 803 near the top. A drive motor 804 is fixedly connected to one side of the shaft bracket 808. The output shaft of the drive motor 804 is fixedly connected to a rotating shaft 807 via a coupling. Elastic connecting rods 805 are fixedly connected at equal intervals to the outer wall of the rotating shaft 807. A striking ball 806 is fixedly connected to one end of each elastic connecting rod 805.

[0040] Specifically, during the downward movement of the sampling tube 801, the collecting hopper 803 comes into contact with the adjusting slide rail 607, which stretches the connecting spring 802 and causes the collecting hopper 803 to deflect upward. When the collecting hopper 803 separates from the adjusting slide rail 607, the connecting spring 802 contracts and drives the collecting hopper 803 to reset.

[0041] Working principle: During use, after drilling and slotting, the hollow cylinder 1 is placed into the pit. The hydraulic cylinder 604 is adjusted to drive the inner support plate 601 to compress and shape a localized area in the pit, preventing the slip zone soil from sliding on the inner wall of the pit and causing layering chaos. Then, the forward and reverse motor 204 is started, driving the parallel arc rod 205 to rotate, which in turn drives the rotating pressure plate 201 to rotate. During rotation, the rotating pressure plate 201 contacts and compresses the inner wall of the pit, passively compressing the compression spring rod 207. When the center point of the rotating pressure plate 201 is in close contact with the inner wall of the pit, the hollow cylinder 1 is securely positioned. After positioning, sampling begins. The lifting cylinder 11 is adjusted to drive the sampling length... After the tube 801 is moved to the corresponding position, the drive motor 804 is started. The drive motor 804 drives the striking balls 806 on each elastic connecting rod 805 to strike the sampling point pressure plate 603, so that the slip strip soil at the sampling point pressure plate 603 is in a state of easy detachment. Then, the hydraulic cylinder 612 is adjusted to drive the flipping sampling plate 602 to separate from the matching guide plate 611. The slip strip soil slides from the matching guide plate 611 into the collection hopper 803, and then into the sampling tube 801. The two discharge valves 809 located at the top are in the open state, so the slip strip soil slides directly to the bottom layered sampling hopper 810 to complete the first layer sampling. Subsequent sampling repeats the above operation. After the layered sampling is completed, the equipment is taken out and the operation ends.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sampling device for undisturbed slip zone soil on a bedding slope, comprising an insertion into a hollow cylinder (1), characterized in that, A mounting bracket (4) is fixedly connected to the outer wall near the top of the hollow cylinder (1), and an inner support pressing and shaping mechanism (6) is provided on the mounting bracket (4). The inner support pressing and shaping mechanism (6) includes an inner support plate (601), and a hydraulic cylinder (604) is fixedly connected to the side of the mounting bracket (4) facing the inner support plate (601). The output end of the hydraulic cylinder (604) is fixedly connected to one side of the inner support plate (601). Sampling holes are opened at equal intervals on the inner support plate (601). An adjusting slide rail (607) is fixedly connected to the side wall of the inner support plate (601) above each sampling hole. A self-sliding slider (614) is slidably connected inside each adjusting slide rail (607), and an integrated plate is fixedly connected to the bottom of each self-sliding slider (614). (606), the integrated plate (606) is fixedly connected with positioning spring rods (605) at equal distances on the side facing the sampling hole. One end of the multiple positioning spring rods (605) is fixedly connected to the same sampling point pressure plate (603). The sampling point pressure plate (603) has a flipping hole, and the top inner wall of the flipping hole is connected to a flipping sampling piece (602) through a hinge. The bottom inner wall of the flipping hole is fixedly connected to a fitting guide piece (611). The sampling point pressure plate (603) is fixedly connected to a fixing block (613) facing the outer wall of the hollow cylinder (1). The bottom of the fixing block (613) is connected to a hydraulic cylinder three (612) through a hinge. The output end of the hydraulic cylinder three (612) is connected to the outer wall of the flipping sampling piece (602) through a hinge. The hollow cylinder (1) has an elongated hole (9) on its arc surface facing the inner support plate (601), and the lifting slider (7) is provided with a multi-layer sampling mechanism (8) on the side facing the elongated hole (9). The multi-layer sampling mechanism (8) includes a sampling tube (801). The sampling tube (801) has a collection hopper (803) connected to its outer side wall near the top via a hinge. A connecting spring (802) is fixedly connected to the downward-facing arc surface of the collection hopper (803). One end of the connecting spring (802) is fixedly connected to the outer side wall of the sampling tube (801). The same shaft frame (808) is fixedly connected to both sides of the collection hopper (803) near the top. A drive motor (804) is fixedly connected to one side of the shaft frame (808). The output shaft of the drive motor (804) is fixedly connected to a rotating shaft (807) via a coupling. Elastic connecting rods (805) are fixedly connected at equal intervals to the outer side wall of the rotating shaft (807). A striking ball (806) is fixedly connected to one end of each elastic connecting rod (805).

2. The sampling device for undisturbed slip zone soil on a bedding slope according to claim 1, characterized in that, The top of the adjusting slide rail (607) is fixedly connected to a connecting frame (608), and a hydraulic cylinder two (609) is fixedly connected to the side of the connecting frame (608) facing the integrated plate (606). The output end of the hydraulic cylinder two (609) is fixedly connected to a rear abutment block (610).

3. The sampling device for undisturbed slip zone soil on a bedding slope according to claim 1, characterized in that, An unfolding plate (5) is fixedly connected to the top of the hollow cylinder (1), and a fixing hole is opened on the arc surface of the hollow cylinder (1) away from the inner support plate (601), and a lifting rail (3) is fixedly connected inside the fixing hole.

4. The sampling device for undisturbed slip zone soil on a bedding slope according to claim 3, characterized in that, The lifting rail (3) is provided with a fixing mechanism (2) on the side away from the inner support plate (601), and the fixing mechanism (2) includes an outer frame (202), which is fixedly connected to one side of the lifting rail (3).

5. A soil sampling device for undisturbed slip zone of a bedding slope according to claim 4, characterized in that, A forward and reverse motor (204) is fixedly connected to one side of the external frame (202), and the output shaft of the forward and reverse motor (204) is fixedly connected to a rotating column (203) through a coupling. One end of the rotating column (203) is connected to the inner wall of one side of the external frame (202) through a bearing, and a connecting rod (206) is fixedly connected to the outer wall of the rotating column (203).

6. A soil sampling device for undisturbed slip zone of a bedding slope according to claim 5, characterized in that, The end of the connecting rod (206) away from the outer frame (202) is fixedly connected to a parallel arc rod (205). On the arc surface of the parallel arc rod (205), compression spring rods (207) are fixedly connected at equal intervals. One end of the multiple compression spring rods (207) is fixedly connected to the same rotating pressure plate (201).

7. A soil sampling device for undisturbed slip zone of a bedding slope according to claim 3, characterized in that, An end block (10) is fixedly connected to the lifting rail (3), and a lifting cylinder (11) is fixedly connected to the side of the end block (10) facing the inside of the lifting rail (3). A lifting slider (7) is fixedly connected to the output end of the lifting cylinder (11).

8. A soil sampling device for undisturbed slip zone of a bedding slope according to claim 1, characterized in that, The sampling tube (801) is fixedly connected with tiered sampling hoppers (810) at equal intervals inside, and the bottom of each tiered sampling hopper (810) is connected to a discharge valve (809) via a flange. The bottom of the sampling tube (801) is open.

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