Experimental device for impact of debris flow on dumbbell structure

Abstract

The invention relates to the technical field of debris flow water tank experiments, and discloses a debris flow impact dumbbell structure experiment device which comprises a water tank pre-buried in the ground, the water tank is fixedly connected with a feeding mechanism for providing debris flow for impact experiments, and the tail end of the feeding mechanism is provided with two sets of sampling mechanisms for cleaning. And an experiment mechanism for an impact experiment is arranged between the two groups of sampling mechanisms. Data support is provided for the experiment that the debris flow impacts the dumbbell structure, subsequent analysis on the debris flow impact dumbbell structure is facilitated, the detection parts of the dumbbell-shaped structures arranged in a multi-row array mode are adopted for carrying out the impact test on the debris flow, and firstly, impact force of large stones in the debris flow can be dispersed and buffered; meanwhile, impact force detection can be conducted from different positions, impact force is buffered, dynamic impact force detection in the whole impact process is achieved, and the continuous impact detection requirement can be met.

Description

Technical Field

[0001] The invention relates to the technical field of debris flow flume experiments, in particular to an experimental device for debris flow impacting a dumbbell structure. Background Art

[0002] Debris flow is a highly destructive geological disaster, which requires reinforcement and protection. Engineering measures and biological measures are usually used to reinforce and protect debris flows. When using engineering measures for reinforcement, blocking, diversion and support are generally used; and when reinforcing support engineering, the special mechanical properties of anchor rods are used to use anchor rods in debris flow support engineering, thereby improving the impact resistance and support reinforcement effect of the support engineering;

[0003] When anchor rods are used for reinforcement, it is necessary to test the impact resistance of anchor rods to debris flow, evaluate the dynamic response of anchor rods under debris flow impact, and verify their impact resistance and protection effect. During the detection process, due to the high impact intensity of debris flow, the existing test device cannot disperse and buffer the impact force during the test, and it is difficult to detect the dynamic changes in the entire impact process. Therefore, an experimental device of debris flow impact dumbbell structure is proposed. Summary of the invention

[0004] In order to solve the technical problem that the debris flow impact intensity cannot be adjusted during the detection process of the existing test device and only a single impact test can be performed, the present invention provides a debris flow impact dumbbell structure test device.

[0005] The present invention is implemented by the following technical scheme: an experimental device for a debris flow impact dumbbell structure, comprising a water tank pre-buried in the ground, the water tank is fixedly connected with a feeding mechanism for providing debris flow for impact experiment, two groups of sampling mechanisms for cleaning are arranged at the end of the feeding mechanism, an experimental mechanism for impact experiment is arranged between the two groups of sampling mechanisms, and a collecting assembly for collecting debris flow is arranged at the end of the water tank;

[0006] The material collecting assembly includes a baffle fixedly connected to the inner wall of the water trough, a collecting trough located on the inner wall of the bottom of the water trough is provided on one side of the baffle, a filter plate is fixedly connected to the top opening of the collecting trough, a return pipe is fixedly connected to the bottom of the collecting trough, a discharge trough connected to the interior of the trough passes through one side of the water trough, a storage mechanism pre-buried in the ground is provided at the opening of the discharge trough, a collecting mechanism for collecting soil is slidably connected inside the storage mechanism, a lifting mechanism for adjusting the height of the collecting mechanism is connected to the top of the collecting mechanism, and the lifting mechanism is connected to the storage mechanism and the water trough.

[0007] As a further improvement of the above solution, the feeding mechanism includes a conveying trough with a U-shaped structure fixedly connected to the water tank. A support frame fixedly connected to the water tank is fixedly connected to the bottom of the conveying trough. An inner ring of the top of the conveying trough is slidably connected to a movable trough with a U-shaped structure. A hopper is fixedly connected to the top of the movable trough. A discharge channel is opened on one side of the hopper close to the movable trough. A closing door hinged to the hopper is arranged at the top of the opening of the discharge channel. The closing door is hinged to a first driving unit. The top of the first driving unit is hinged to a cross plate fixedly connected to the hopper. A second driving unit parallel to the conveying trough is fixedly connected to the support frame. A push plate fixedly connected to the bottom of the hopper is fixedly connected to the output end of the second driving unit.

[0008] As a further improvement of the above solution, the sampling mechanism includes a U-shaped bracket fixedly connected between the top openings of the water tank. A water pipe, a camera, a flow sensor for detecting the flow rate of debris flow, and a displacement sensor for detecting the height of the top of the debris flow are fixedly connected to the bracket.

[0009] As a further improvement of the above solution, the experimental mechanism includes impact units arranged in an array on the inner side wall of the top of the water tank. The impact units are distributed on the water tank in two rows, front and back, and at least three impact units are arranged in each row. The impact unit includes a fixed platform fixedly connected above the inner side wall of the top of the water tank. The fixed platform is fixedly sleeved with a guiding sleeve. The guiding sleeve is slidably sleeved with an anchor rod. An impact block is fixedly connected to one end of the anchor rod extending out of the guiding sleeve. A stabilizing ring slidably connected to the guiding sleeve is fixedly connected to the outer circle of one end of the anchor rod extending into the guiding sleeve. A substrate is fixedly connected inside the guiding sleeve. A sensor in contact with the anchor rod is fixedly connected to the substrate.

[0010] As a further improvement of the above solution, the storage mechanism includes a storage box embedded in the ground. An annular supporting plate is fixedly connected to the inner circle of the storage box. A return pipe fixedly connected to the storage box is arranged at the bottom of the supporting plate. The return pipe is connected to the sampling mechanism.

[0011] As a further improvement of the above solution, the lifting mechanism includes a bearing plate arranged on the top of the water tank. A first supporting plate and a second supporting plate fixedly connected to the water tank are fixedly connected to the bottom of the bearing plate. An end plate fixedly connected to the bottom of the bearing plate is arranged on one side of the first supporting plate away from the second supporting plate. A first winding roller is rotatably connected between the end plate and the first supporting plate. A first pulling rope connected to the collecting mechanism is wound around the outer circle of the first winding roller. Second winding rollers rotatably connected to the end plate and the first supporting plate are installed on both sides of the first winding roller. A second pulling rope connected to the collecting mechanism is wound around the outer circle of the second winding roller.

[0012] As a further improvement of the above solution, the collection mechanism includes a buffer box disposed inside the storage mechanism. A push-pull plate fixedly connected to the lifting mechanism is slidably connected to the inner side wall of the buffer box. One side of the bottom of the push-pull plate is hinged to a deflection plate. The bottom of the deflection plate is slidably connected to an extension plate hinged to the bottom of the buffer box. A blanking channel penetrating the buffer box is formed on one side of the extension plate away from the deflection plate. A flap is rotatably connected to the inner side wall of the top of the blanking channel through a rotating shaft. Connecting shafts are fixedly connected to both sides of the bottom of the flap. The other ends of the connecting shafts are rotatably connected to pull rods located outside the buffer box. Through slots arranged in the vertical direction penetrate both sides of the buffer box. A driven rod fixedly connected to the push-pull plate is slidably connected to the through slots. U-shaped sliding frames slidably connected to the outer side wall of the buffer box are fixedly connected to the ends of the two driven rods away from each other. A sliding slot arranged in the horizontal direction penetrates the sliding frame. An extrusion rod fixedly connected to the adjacent pull rod is slidably connected to the sliding slot. An extrusion groove for sliding connection with the extrusion rod is formed on the outside of the buffer box. A ring-shaped resisting frame is fixedly connected to the outer circle of the top of the buffer box.

[0013] As a further improvement of the above solution, one end of the first winding roller extending out of the first support plate is equipped with a first motor fixedly connected to the first support plate. Chain wheels are fixedly sleeved on the extending ends of the second winding rollers. An annular chain is connected between the two chain wheels. One end of one of the second winding rollers is equipped with a second motor. The other end of the second motor is fixedly connected to an L-shaped motor fixing plate fixedly connected to the end plate. There are at least two second pull ropes on the same second winding roller.

[0014] As a further improvement of the above solution, the end of the water return pipe away from the water tank extends to the bottom of the support plate. A water pump is installed on the return pipe.

[0015] As a further improvement of the above solution, an inclined guiding plate is fixedly connected to the top of the push-pull plate. Filter holes penetrate the flap.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention can adjust the height of the debris flow impact experiment, realize the debris flow impact experiment under different intensities, facilitate providing data for the subsequent bolt reinforcement, and facilitate the experimenter to adjust the debris flow impact intensity.

[0018] 2. The present invention collects debris flow impact data at different positions and flushes the water tank and experimental equipment after the impact experiment.

[0019] 3. The present invention can collect and filter the debris flow after the experiment, collect the water during filtration and the flushing water, facilitate the subsequent continuation of the debris flow impact experiment and cleaning, is convenient for use in outdoor experimental sites, saves water, realizes the recycling of flushing water and debris flow mixing water, reduces costs, and reduces the experimental operation difficulty;

[0020] 4. The detection component with a dumbbell-shaped structure arranged in a multi-row array is adopted in the present invention to conduct an impact test on debris flow. Firstly, it can disperse and buffer the impact force of large boulders in the debris flow, and at the same time, it can detect the impact force from different positions, absorb and reduce the impact force of the debris flow, buffer the impact force, and realize the dynamic impact force detection during the whole impact process, and can meet the requirement of continuous impact detection.

[0021] 5. According to the flow velocity of the debris flow, the height of the debris flow and the collected real-time impact force after detection, the present invention provides data support for the experiment of the debris flow impacting the dumbbell structure, which is convenient for subsequent analysis of the debris flow impacting the dumbbell structure. Brief Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of an experimental device for a debris flow impacting a dumbbell structure provided by the present invention;

[0023] Figure 2 It is a sectional view of an experimental device for a debris flow impacting a dumbbell structure provided by the present invention;

[0024] Figure 3 It is a schematic structural diagram of an experimental mechanism provided by the present invention;

[0025] Figure 4 It is a schematic structural diagram of a storage mechanism provided by the present invention;

[0026] Figure 5 It is a schematic structural diagram of a collection mechanism provided by the present invention;

[0027] Figure 6 It is a sectional view of a collection mechanism provided by the present invention;

[0028] Figure 7 It is a schematic structural diagram of a sliding frame provided by the present invention;

[0029] Figure 8 It is a schematic structural diagram of a lifting mechanism provided by the present invention.

[0030] Main Symbol Description:

[0031] 1. Water tank; 2. Feeding mechanism; 3. Sampling mechanism; 4. Experimental mechanism; 5. Material collection component; 6. Storage mechanism; 7. Lifting mechanism; 8. Collection tank; 9. Filter plate; 10. Return water pipe; 11. Discharge tank; 12. Baffle; 41. Fixed platform; 42. Guide sleeve; 43. Anchor rod; 44. Impact block; 45. Stabilizing ring; 46. Sensor; 47. Substrate; 61. Storage box; 62. Return pipe; 63. Support plate; 71. Bearing plate; 72. End plate; 73. Support plate one; 74. Support plate two; 75. Winding roller one; 76. Winding roller two; 81. Buffer box; 82. Resistance frame; 83. Push-pull plate; 84. Flipping plate; 85. Extension plate; 86. Feeding channel; 87. Flap; 88. Connecting shaft; 89. Pull rod; 810. Extension slot; 811. Sliding frame; 812. Extrusion slot; 813. Chute; 814. Driven rod; 815. Extrusion rod. Specific embodiments

[0032] Next, in combination with the accompanying drawings and specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0033] Embodiment 1:

[0034] Please refer to Figures 1-8 , an experimental device for a debris flow impact dumbbell structure in this embodiment includes a water tank 1 embedded in the ground. The water tank 1 is fixedly connected with a feeding mechanism 2 for providing debris flow for impact experiments. At the end of the feeding mechanism 2, there are two groups of sampling mechanisms 3 for cleaning. Between the two groups of sampling mechanisms 3, there is an experimental mechanism 4 for impact experiments. At the end of the water tank 1, there is a material collection component 5 for collecting debris flow. The experimental debris flow is transported to the feeding mechanism 2 by equipment such as an excavator. The debris flow slides downward from the feeding mechanism 2 onto the water tank 1 to conduct an impact experiment on the experimental mechanism 4. The experimental mechanism 4 collects the experimental data of the debris flow impact. At the same time, the material collection component 5 is used to collect the debris flow, and the sampling mechanism 3 is used to wash the mud and stones in the water tank 1;

[0035] The material collection component 5 includes a baffle 12 fixedly connected to the inner side wall of the water tank 1. On one side of the baffle 12, there is a collection tank 8 located on the inner side wall of the bottom of the water tank 1. At the top opening of the collection tank 8, a filter plate 9 is fixedly connected. At the bottom of the collection tank 8, a return water pipe 10 is fixedly connected. One side of the water tank 1 penetrates through and is connected to a discharge tank 11 communicating with its interior. At the opening of the discharge tank 11, there is a storage mechanism 6 embedded in the ground. Inside the storage mechanism 6, there is a collection mechanism slidably connected for collecting soil. The top of the collection mechanism is connected with a lifting mechanism 7 for adjusting the height of the collection mechanism, and the lifting mechanism 7 is connected to the storage mechanism 6 and the water tank 1;

[0036] The storage mechanism 6 includes a storage box 61 embedded in the ground. An annular support plate 63 is fixedly connected to the inner circle of the storage box 61. A return pipe 62 fixedly connected to the storage box 61 is provided at the bottom of the support plate 63. The return pipe 62 is connected to the sampling mechanism 3. One end of the return water pipe 10 away from the water tank 1 extends to the bottom of the support plate 63, and a water pump is installed on the return pipe 62.

[0037] The collection mechanism includes a buffer box 81 arranged inside the storage mechanism 6. A push-pull plate 83 fixedly connected to the lifting mechanism 7 is slidably connected to the inner side wall of the buffer box 81. One side of the bottom of the push-pull plate 83 is hinged with a deflection plate 84. The bottom of the deflection plate 84 is slidably connected to an extension plate 85 hinged to the bottom of the buffer box 81. A blanking channel 86 penetrating the buffer box 81 is provided on one side of the extension plate 85 away from the deflection plate 84. A flap 87 is rotatably connected to the inner side wall of the top of the blanking channel 86 through a rotating shaft. Connecting shafts 88 are fixedly connected to both sides of the bottom of the flap 87. The other ends of the connecting shafts 88 are rotatably connected to pull rods 89 located outside the buffer box 81. Through slots 810 arranged vertically are provided on both sides of the buffer box 81. Driven rods 814 slidably connected to the push-pull plate 83 are slidably connected to the through slots 810. U-shaped sliding frames 811 slidably connected to the outer side wall of the buffer box 81 are fixedly connected to the ends of the two driven rods 814 away from each other. A sliding groove 813 arranged horizontally penetrates the sliding frame 811. A pressing rod 815 fixedly connected to the adjacent pull rod 89 is slidably connected to the sliding groove 813. A pressing groove 812 slidably connected to the pressing rod 815 is provided on the outer side of the buffer box 81. An annular baffle frame 82 is fixedly connected to the outer circle of the top of the buffer box 81. The impacted debris flow slides downward along the water tank 1 and is blocked by the baffle 12. At the same time, when the debris flow passes through the filter 9, the moisture on the debris flow is preliminarily filtered to reduce the water content of the debris flow. The debris flow blocked by the baffle 12 is discharged into the buffer box 81 inside the storage box 61 along the discharge groove 11 on the water tank 1. The flap 87 on the buffer box 81 filters the debris flow again to further reduce the moisture of the debris flow.

[0038] A guiding plate is fixedly connected to the top of the push-pull plate 83 in an inclined manner. Filter holes penetrate the flap 87.

[0039] When the push-pull plate 83 moves upward, the push-pull plate 83 drives the driven rod 814 and the deflection plate 84 to move. The deflection plate 84 drives the extension plate 85 to deflect. The deflection plate 84 and the extension plate 85 are in an inclined state. The driven rod 814 drives the sliding frame 811 to move upward, and then drives the pressing rod 815 to move upward along the pressing groove 812, so that the pull rod 89 pushes the flap 87 to deflect upward and away from the buffer box 81, enabling the debris flow to be discharged from the blanking channel 86.

[0040] Embodiment 2:

[0041] On the basis of Embodiment 1, the further improvement of this embodiment lies in that: the feeding mechanism 2 includes a conveying trough with a U-shaped structure fixedly connected to the water tank 1. A support frame fixedly connected to the water tank 1 is fixedly connected to the bottom of the conveying trough. An inner ring of the top of the conveying trough is slidably connected with a movable trough with a U-shaped structure. A hopper is fixedly connected to the top of the movable trough. A discharge channel is opened on one side of the hopper close to the movable trough. A closing door hinged to the hopper is arranged at the top of the opening of the discharge channel. The closing door is hinged with a driving unit one. A cross plate fixedly connected to the hopper is hinged to the top of the driving unit one. A driving unit two parallel to the conveying trough is fixedly connected to the support frame. A push plate fixedly connected to the bottom of the hopper is fixedly connected to the output end of the driving unit two;

[0042] Adjust the height of the hopper of the feeding mechanism 2 according to the impact test intensity. Start the driving unit two to push the hopper to move along the length direction of the conveying trough to adjust the height of the hopper. At the same time, fill the hopper with a debris flow sample of a certain weight and moisture according to the impact test requirements. When the driving unit one is turned on, the debris flow slides down along the movable trough and the conveying trough into the water tank 1 for the impact test.

[0043] The sampling mechanism 3 includes a U-shaped bracket fixedly connected between the top openings of the water tank 1. The bracket is fixedly connected with a water pipe, a camera, a flow sensor for detecting the flow rate of the debris flow, and a displacement sensor for detecting the height of the top of the debris flow. The water pipe can wash the water tank 1. During the washing process, manually assist to convey the remaining sediment along the water tank 1 to the storage mechanism 6. The camera collects the image data of the impact test process. According to the detected flow velocity of the debris flow, the height of the debris flow, and the real-time impact force collected by the experimental mechanism 4, it provides data support for the experiment of the debris flow impacting the dumbbell structure, which is convenient for subsequent analysis of the debris flow impacting the dumbbell structure.

[0044] The experimental mechanism 4 includes impact units arranged in an array on the inner side wall of the top of the water tank. The impact units are distributed in two rows, front and back, on the water tank, and at least three impact units are arranged in each row. The impact unit includes a fixed platform 41 fixed on the upper part of the inner side wall of the top of the water tank 1. The fixed platform 41 is fixedly sleeved with a guiding sleeve 42. The guiding sleeve 42 is slidably sleeved with an anchor rod 43. One end of the anchor rod 43 extending out of the guiding sleeve 42 is fixedly connected with an impact block 44. A stabilizing ring 45 slidably connected with the guiding sleeve 42 is fixedly connected to the outer ring of one end of the anchor rod 43 extending into the guiding sleeve 42. A substrate 47 is fixedly connected inside the guiding sleeve 42. The substrate 47 is fixedly connected with a sensor 46 in contact with the anchor rod 43. The sensor 46 is a pressure sensor. A spring is fixedly connected between the stabilizing ring 45 and the plate 47. When the debris flow impacts the impact block 44, the debris flow pushes the impact block 44 to move, and then the anchor rod 43 moves. The sensor 46 collects the impact force information of the anchor rod 43. Since the experimental mechanism 4 is arranged in an array inside the water tank 1 and is arranged in two rows, front and back, the experimental mechanisms 4 in each row are staggered, and at least 3 experimental mechanisms 4 are arranged in each row. The experimental data of the debris flow impact at different positions are collected through the experimentally arranged mechanisms 4 in an array. When the debris flow impacts the experimental mechanism 4, the dumbbell-shaped impact units are distributed in an array, front and back, which can effectively disperse and resist the large boulders in the debris flow conveyed by the feeding mechanism 2, and the impact force on the large boulders is detected by a multi-point distribution method. During the detection, the spring and the anchor rod 43 absorb and reduce the impact force of the debris flow, buffer the impact force, and realize the dynamic impact force detection of the whole impact process. The impact units with a dumbbell structure in two rows, front and back, can separate and detect the small gravel in the debris flow, buffer the impact force of the debris flow, and realize the detection of the force of the debris flow impacting the anchor rod.

[0045] The lifting mechanism 7 includes a bearing plate 71 arranged on the top of the water tank 1. A first support plate 73 and a second support plate 74 fixedly connected to the water tank 1 are fixedly connected to the bottom of the bearing plate 71. On one side of the first support plate 74 away from the second support plate 74, an end plate 72 fixedly connected to the bottom of the bearing plate 71 is arranged. A first winding roller 75 rotatably connected between the end plate 72 and the first support plate 73 is arranged. A first pulling rope connected to the collection mechanism is wound around the outer circle of the first winding roller 75. The first pulling rope is fixedly connected to the top of the push-pull plate 83. On both sides of the first winding roller 75, second winding rollers 76 rotatably connected to the end plate 72 and the first support plate 73 are installed. A second pulling rope connected to the collection mechanism is wound around the outer circle of the second winding roller 76. The second pulling rope is fixedly connected to the top of the buffer box 81.

[0046] One end of the winding roller 75 extending out of the first support plate 73 is installed with a first motor fixedly connected to the first support plate 73. One end of each of the second winding rollers 76 extending out of the end plate 72 is fixedly sleeved with a sprocket wheel, and an annular chain is connected between the two groups of sprocket wheels. One end of one of the second winding rollers 76 is installed with a second motor, and the other end of the second motor is fixedly connected with an L-shaped motor fixing plate fixedly connected to the end plate 72. There are at least two groups of second ropes on the same second winding roller 76; when lifting the collection mechanism, the second motor is started to drive one of the second winding rollers 76 to rotate, and then under the action of the chain and sprocket wheels, the two second winding rollers 76 synchronously wind, so that the second ropes located on the two second winding rollers 76 lift the buffer box 81 upward, making the buffer box 81 move upward. When pushing out the debris flow in the buffer box 81 for continuous use, the first motor is started to make the winding roller 75 rotate, and the first rope drives the push plate 83 to move upward, and then the debris flow in the buffer box 81 is poured out.

[0047] Embodiment 3:

[0048] On the basis of Embodiment 1, this embodiment is further improved in that: a control box is arranged on one side of the water tank 1 on the ground. A rain shelter is installed on the top of the control box. A controller is installed inside the control box. The first driving unit and the second driving unit adopt push rod motors. A power interface, a data interface, a display screen and a switch are installed on one side of the control box. The controller is connected to the push rod motors, the first motor, the second motor, the pressure sensor, the water pump, the power interface, the data interface, the display screen and the switch.

[0049] The present invention can adjust the height of the debris flow impact experiment, realize the debris flow impact experiment under different intensities, facilitate providing data for subsequent bolt reinforcement, and facilitate the experimenter to adjust the debris flow impact intensity; collect debris flow impact data at different positions, and wash the water tank and experimental equipment after the impact experiment; can collect and filter the debris flow after the experiment, collect the water during filtration and the washing water, facilitate subsequent debris flow impact experiments and cleaning, facilitate the use of outdoor experimental sites, save water, realize the recycling of washing water and debris flow mixing water, reduce costs, and reduce the difficulty of experimental operations; use detection components with a dumbbell structure arranged in a multi-row array to conduct impact tests on the debris flow. First, it can disperse and buffer the impact force of large boulders in the debris flow, and at the same time can detect the impact force from different positions, absorb and reduce the impact force of the debris flow, buffer the impact force, realize the dynamic impact force detection of the entire impact process, and can meet the continuous impact detection requirements; provide data support for the experiment of the debris flow impact dumbbell structure, and facilitate subsequent analysis of the debris flow impact dumbbell structure.

[0050] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. An experimental device for a debris flow impact dumbbell structure, characterized in that, It includes a water tank embedded in the ground. The water tank is fixedly connected with a feeding mechanism for providing debris flow for impact experiments. At the end of the feeding mechanism, there are two groups of sampling mechanisms for cleaning. Between the two groups of sampling mechanisms, there is an experimental mechanism for impact experiments. At the end of the water tank, there is a material receiving component for debris flow collection. The material receiving component includes a baffle fixedly connected to the inner side wall of the water tank. On one side of the baffle, there is a collection groove located on the inner side wall of the bottom of the water tank. A filter plate is fixedly connected to the top opening of the collection groove. A return water pipe is fixedly connected to the bottom of the collection groove. There is a discharge groove penetrating through one side of the water tank and communicating with its interior. At the opening of the discharge groove, there is a storage mechanism embedded in the ground. Inside the storage mechanism, there is a collection mechanism for soil collection connected in a sliding manner. The top of the collection mechanism is connected with a lifting mechanism for adjusting the height of the collection mechanism, and the lifting mechanism is connected to the storage mechanism and the water tank.

2. The experimental device of a debris flow impact dumbbell structure according to claim 1, characterized in that, The feeding mechanism includes a U-shaped conveying groove fixedly connected to the water tank. At the bottom of the conveying groove, there is a support frame fixedly connected to the water tank. Inside the top inner circle of the conveying groove, there is a U-shaped movable groove connected in a sliding manner. At the top of the movable groove, there is a hopper. On one side of the hopper close to the movable groove, there is a discharge channel. At the top of the opening of the discharge channel, there is a closing door hinged to the hopper. The closing door is hinged with a driving unit one. The top of the driving unit one is hinged with a cross plate fixedly connected to the hopper. The support frame is fixedly connected with a driving unit two arranged parallel to the conveying groove. The output end of the driving unit two is fixedly connected with a push plate fixedly connected to the bottom of the hopper.

3. The experimental device of a debris flow impact dumbbell structure according to claim 1, characterized in that The sampling mechanism includes a U-shaped bracket fixedly connected between the top openings of the water tank. The bracket is fixedly connected with a water pipe, a camera, a flow sensor for detecting the flow rate of the debris flow, and a displacement sensor for detecting the height of the top of the debris flow.

4. An experimental device of a debris flow impact dumbbell structure according to claim 1, characterized in that, The experimental mechanism includes impact units arranged in an array on the inner side wall of the top of the water tank. The impact units are distributed on the water tank in two rows, front and back, and each row has at least three impact units. The impact unit includes a fixed platform fixedly connected above the inner side wall of the top of the water tank. The fixed platform is fixedly sleeved with a guiding sleeve. The guiding sleeve is slidably sleeved with a bolt. One end of the bolt extending out of the guiding sleeve is fixedly connected with an impact block. On the outer circle of the end of the bolt extending into the guiding sleeve, there is a stabilizing ring slidably connected with the guiding sleeve. Inside the guiding sleeve, there is a base plate fixedly connected with a sensor that abuts against the bolt.

5. The experimental device of a debris flow impact dumbbell structure according to claim 1, characterized in that, The storage mechanism includes a storage box embedded in the ground. Inside the storage box, there is an annular supporting plate fixedly connected. At the bottom of the supporting plate, there is a return water pipe fixedly connected to the storage box. The return water pipe is connected to the sampling mechanism.

6. The experimental device of a debris flow impact dumbbell structure according to claim 1, characterized in that, The lifting mechanism includes a bearing plate arranged on the top of the water tank. At the bottom of the bearing plate, there are a supporting plate one and a supporting plate two fixedly connected to the water tank. On one side of the supporting plate one away from the supporting plate two, there is an end plate fixedly connected to the bottom of the bearing plate. Between the end plate and the supporting plate one, there is a winding roller one rotatably connected. A pulling rope one connected to the collection mechanism is wound around the outer circle of the winding roller one. On both sides of the winding roller one, there are winding rollers two rotatably connected to the end plate and the supporting plate one. A pulling rope two connected to the collection mechanism is wound around the outer circle of the winding roller two.

7. An experimental device of a debris flow impact dumbbell structure according to claim 1, characterized in that, The collection mechanism includes a buffer box disposed inside the storage mechanism. A push-pull plate fixedly connected to the lifting mechanism is slidably connected to the inner side wall of the buffer box. One side of the bottom of the push-pull plate is hinged to a deflection plate. The bottom of the deflection plate is slidably connected to an extension plate hinged to the bottom of the buffer box. A blanking channel penetrating the buffer box is formed on one side of the extension plate away from the deflection plate. A flap is rotatably connected to the inner side wall of the top of the blanking channel through a rotating shaft. Connecting shafts are fixedly connected to both sides of the bottom of the flap. The other ends of the connecting shafts are rotatably connected to pull rods located outside the buffer box. The two sides of the buffer box are penetrated by protruding slots arranged vertically. The protruding slots are slidably connected to driven rods fixedly connected to the push-pull plate. U-shaped sliding frames slidably connected to the outer side wall of the buffer box are fixedly connected to the ends of the two groups of driven rods away from each other. A sliding slot arranged horizontally penetrates the sliding frame. The sliding slot is slidably connected to a pressing rod fixedly connected to the adjacent pull rod. A pressing groove slidably connected to the pressing rod is formed on the outside of the buffer box. An annular blocking frame is fixedly connected to the outer circle of the top of the buffer box.

8. The experimental device of a debris flow impact dumbbell structure according to claim 7, characterized in that, One end of the first winding roller extending out of the first support plate is provided with a first motor fixedly connected to the first support plate. Chain wheels are fixedly sleeved on the extending ends of the second winding rollers. An annular chain is connected between the two groups of chain wheels. One end of one of the second winding rollers is provided with a second motor. The other end of the second motor is fixedly connected to an L-shaped motor fixing plate fixedly connected to the end plate. There are at least two groups of second pull ropes on the same second winding roller.

9. The experimental device of a debris flow impact dumbbell structure according to claim 3, characterized in that One end of the water return pipe away from the water tank extends to the bottom of the support plate. A water pump is installed on the water return pipe.

10. An experimental device of a debris flow impact dumbbell structure according to claim 7, characterized in that A guiding plate arranged obliquely is fixedly connected to the top of the push-pull plate. Filter holes penetrate the flap.

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