Indoor test simulation device for erosion of frozen soil at frozen soil-structural surface

Abstract

The invention relates to the technical field of geotechnical engineering freezing, and discloses a frozen soil-structural surface frozen soil erosion indoor test simulation device which comprises a mounting unit, a transmission unit and a cleaning unit, the mounting unit comprises an experiment table, a cavity is formed in the experiment table, and supporting legs are fixedly mounted on the periphery of the bottom of the experiment table. When the driving assembly operates, the circular mounting plate can be controlled to move and leave the middle of the experiment table, it is guaranteed that frozen soil falls off, when the frozen soil falls off, the driving assembly is reset at the moment, the first inner protection plate and the second inner protection plate are closed, water can be injected inwards, the driving assembly is started again at the moment, and the working efficiency is improved. And the first inner protection plate and the second inner protection plate can slightly rotate in a reciprocating mode, so that water can shake and clean the inner walls of the first inner protection plate and the second inner protection plate, the operation is repeated for multiple times, and it is guaranteed that frozen soil residual impurities on the inner walls of the first inner protection plate and the second inner protection plate can be cleaned up.

Description

Technical Field

[0001] The invention belongs to the technical field of geotechnical engineering freezing, and in particular relates to an indoor test simulation device for frozen soil erosion at a frozen soil-structure surface. Background Art

[0002] In engineering construction in cold regions, a large number of infrastructure such as roads, bridges, and building foundations interact with permafrost. Under the influence of factors such as temperature changes and moisture migration, permafrost often erodes the structural surfaces in contact with structures, which can seriously affect the stability and durability of engineering structures. Therefore, some existing experiments specifically focus on permafrost research.

[0003] However, when the durability and corrosiveness tests on frozen soil are completed, the frozen soil is often placed in equipment such as experimental boxes, which makes it difficult to take it out. At the same time, when the frozen soil is taken out, it is in a freeze-thaw state during the experiment, which can easily cause stains on the inner wall of the test box. As a result, the frozen soil needs to be taken out for a period of time before it can be cleaned. Because the frozen soil is relatively cold at the beginning when it is placed in the experimental box, it is not convenient for the experimenters to clean it.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A frozen soil erosion indoor test simulation device at a frozen soil-structure interface, comprising an installation unit, a transmission unit and a cleaning unit:

[0007] The installation unit includes a laboratory table, a cavity is provided in the laboratory table, support legs are fixedly installed around the bottom of the laboratory table, and the four support legs are symmetrical to each other. A side panel is also fixedly installed above the laboratory table, and a water tank is fixedly connected to one side wall of the side panel. A spray head is provided on one side of the water tank, and the spray head movably passes through the side panel. The laboratory table is also provided with a first outer protective plate and a second outer protective plate, a semicircular plug-in slot is provided on one side of the first outer protective plate, and a semicircular plug-in plate is fixedly connected to one side wall of the second outer protective plate. The notch and the semicircular plug-in plate fit each other, the first outer protective plate inner cavity is fixedly connected to the first inner protective plate, the second outer protective plate is fixedly connected to the second inner protective plate, the first inner protective plate side wall is provided with a rectangular plug-in notch, the second inner protective plate side wall is fixedly connected to the rectangular plug-in plate, the rectangular plug-in notch and the rectangular plug-in plate fit each other, the first outer protective plate and the second outer protective plate inner cavity are both provided with a heating and cooling component and a detection component, two mutually symmetrical rectangular notches are provided above the experimental table, and a notch is also provided in the middle of the experimental table;

[0008] The cleaning unit comprises a circular mounting plate, the circular mounting plate being arranged in the middle of the inner cavity of the experimental bench, a plug-in slot being provided above the circular mounting plate, a first plug-in plate and a second plug-in plate being fitted and plugged in the plug-in slot, a placement rod being fixedly connected above the first plug-in plate and the second plug-in plate, the other ends of the two placement rods being respectively fixedly connected to the bottom of the first outer protective plate and the bottom of the second outer protective plate, the two placement rods being respectively movably passed through the slot, a circular slide groove being provided on the side wall of the circular mounting plate, two guide sliders being slidably installed in the inner cavity of the circular slide groove, the two guide sliders being symmetrical to each other, the two guide sliders being movably passed through the limit rods, the two limit rods being symmetrical to each other, and the two ends of the two limit rods being respectively fixedly connected to the two opposite side walls of the inner cavity of the experimental bench;

[0009] The transmission unit comprises a driving assembly, and the driving assembly is used to drive the first outer protective plate and the second outer protective plate to move, and the driving assembly can also be used to drive the first outer protective plate and the second outer protective plate to rotate.

[0010] As a preferred embodiment of the present invention, the driving assembly includes a servo motor, which is arranged on the inner wall of the experimental bench, and the output end of the servo motor is fixedly connected to a first threaded rod, and the end of the first threaded rod away from the servo motor is fixedly connected to a second threaded rod, and the second threaded rod is rotatably connected to the inner wall of the experimental bench, and a first threaded sleeve is meshed and installed on the first threaded rod, and a second threaded sleeve is meshed and installed on the second threaded rod, and a first connecting rod and a second connecting rod are fixedly connected to the first threaded sleeve and the second threaded sleeve respectively.

[0011] As a preferred embodiment of the present invention, the inner cavity of the laboratory table is also fixedly connected to a sliding rod, and the sliding rod is parallel to the first threaded rod and the second threaded rod respectively. The sliding rod is slidably provided with a first sliding sleeve and a second sliding sleeve respectively, and the first sliding sleeve and the second sliding sleeve are fixedly connected above the first sliding sleeve and the second connecting rod respectively.

[0012] As a preferred embodiment of the present invention, a first sliding mechanism is respectively connected above the two first connecting rods and the second connecting rods, and the first sliding mechanism includes a first semicircular slide groove and a second semicircular slide groove, and the first semicircular slide groove and the second semicircular slide groove are respectively opened on the first outer protective plate and the second outer protective plate, and the first semicircular slide groove and the second semicircular slide groove fit each other to form a circle, and two first sliders and a second slider are respectively slidably installed in the inner cavities of the first semicircular slide groove and the second semicircular slide groove.

[0013] As a preferred embodiment of the present invention, the bottoms of the two first sliding blocks and the second sliding blocks are fixedly connected with a first connecting rod and a second connecting rod respectively.

[0014] As a preferred embodiment of the present invention, the inner cavity of the laboratory bench is further provided with two special-shaped sliding rods, the opposite ends of the two special-shaped sliding rods are fixedly connected to the guide sliding rods, the opposite ends of the two guide sliding rods are respectively fixedly connected to the opposite side walls of the laboratory bench, the two special-shaped sliding rods and the guide sliding rods are staggered and symmetrical, the two special-shaped sliding rods are slidably installed with movable sleeves, and the two movable sleeves are symmetrical to each other.

[0015] As a preferred embodiment of the present invention, telescopic rods are respectively provided on opposite sides of the two movable sleeves, and the other ends of the telescopic rods are respectively provided on the first threaded sleeve and the second sliding sleeve, and second sliding mechanisms are respectively provided on opposite sides of the two movable sleeves.

[0016] As a preferred embodiment of the present invention, the second sliding mechanism includes two movable slide grooves, and the two movable slide grooves are respectively opened on the side walls opposite to the first plug-in board and the second plug-in board. The inner cavities of the two movable slide grooves are both slidably installed with movable sliders, and the two movable sliders are hingedly provided with connecting rods, and the opposite ends of the connecting rods are respectively hingedly provided on the movable sleeves.

[0017] As a preferred embodiment of the present invention, an L-shaped mounting plate is fixedly connected to the bottom of the second threaded sleeve, a wedge-shaped block is provided on one side wall of the L-shaped mounting plate, a slide rail is provided on the bottom of the wedge-shaped block, and the slide rail is provided at the bottom of the inner cavity of the laboratory table, a fixing plate is fixedly connected above the wedge-shaped block, a movable rod is movably connected to one side wall of the fixing plate, and the other end of the movable rod is movably connected to the guide slider.

[0018] As a preferred embodiment of the present invention, both upper and lower side walls of the experimental table are provided with discharge slots, and a material guide sleeve is fixedly connected to the inner cavity of the discharge slot near the supporting legs of the experimental table.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention controls the opening of the first inner protective plate and the second inner protective plate through the driving component, thereby allowing the frozen soil to fall down. At the same time, when the driving component is running, it can also control the circular mounting plate to move and let it leave the middle of the experimental table, so that it can ensure that the frozen soil falls down. When the frozen soil falls down, the driving component is reset at this time, so that the first inner protective plate and the second inner protective plate are closed, and water can be injected into the inside. At this time, the driving component is started again, so that the first inner protective plate and the second inner protective plate can be slightly reciprocated, so that the water can shake and clean the inner walls of the first inner protective plate and the second inner protective plate. This is repeated many times to ensure that the residual impurities in the frozen soil on the inner walls of the first inner protective plate and the second inner protective plate can be cleaned up.

[0021] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the attached picture:

[0023] Figure 1 It is a three-dimensional structural schematic diagram of an indoor test simulation device for frozen soil erosion at a frozen soil-structure interface;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of a test bench of an indoor test simulation device for frozen soil erosion at a frozen soil-structure interface;

[0025] Figure 3 It is a schematic diagram of the side view of the experimental platform of an indoor test simulation device for frozen soil erosion at a frozen soil-structure interface;

[0026] Figure 4 It is a schematic diagram of the structure of an experimental platform of an indoor test simulation device for frozen soil erosion at a frozen soil-structure interface, viewed from above;

[0027] Figure 5 It is a schematic diagram of the explosion structure of the inner cavity of a test bench of an indoor test simulation device for frozen soil erosion at a frozen soil-structure interface;

[0028] Figure 6 It is a schematic diagram of the inner cavity structure of a test bench of an indoor test simulation device for frozen soil erosion at a frozen soil-structure interface;

[0029] Figure 7 It is a kind of indoor test simulation device for frozen soil erosion at frozen soil-structure interface. Figure 6 The enlarged structural diagram at A in the middle;

[0030] Figure 8 It is a schematic diagram of the structure of the first inner protective plate and the second inner protective plate of an indoor test simulation device for frozen soil erosion at a frozen soil-structure interface;

[0031] Fig. 9 The figure is a schematic diagram of the circular mounting plate structure of an indoor test simulation device for frozen soil erosion at a frozen soil-structure interface.

[0032] In the figure:

[0033] 100, mounting unit; 101, laboratory table; 1011, supporting leg; 1012, rectangular notch; 1013, side panel; 1014, water tank; 1015, spray head; 1016, discharge notch; 1017, guide sleeve; 102, first outer protective plate; 1021, second outer protective plate; 1022, semicircular plug-in notch; 1023, semicircular plug-in plate; 1024, first semicircular chute; 1025, second semicircular chute; 1026, first slider; 1027, second slider; 103, first inner protective plate; 1031, second inner protective plate; 1032, rectangular plug-in notch; 1033, rectangular plug-in plate;

[0034] 200, transmission unit; 201, servo motor; 2011, first threaded rod; 2012, second threaded rod; 2013, first threaded sleeve; 2014, second threaded sleeve; 2015, first connecting rod; 2016, second connecting rod; 202, sliding rod; 2021, first sliding sleeve; 2022, second sliding sleeve; 203, special-shaped sliding rod; 2031, guide sliding rod; 2032, moving sleeve; 2033, telescopic rod; 2034, connecting rod; 2035, first plug-in board; 2036, moving slide; 2037, moving slider; 2038, second plug-in board; 2039, placement rod;

[0035] 300, cleaning unit; 301, circular mounting plate; 3011, circular slide groove; 3012, guide slider; 3013, limit rod; 3014, movable rod; 3015, plug-in groove; 302, L-shaped mounting plate; 3021, wedge block; 3022, fixing plate; 3023, slide rail. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0037] Embodiment 1:

[0038] like Figures 1 to 9As shown, an indoor test simulation device for frozen soil erosion at a frozen soil-structure surface includes an installation unit 100, a transmission unit 200 and a cleaning unit 300: the installation unit 100 includes a test bench 101, a cavity is opened in the test bench 101, support legs 1011 are fixedly installed around the bottom of the test bench 101, and the four support legs 1011 are symmetrical to each other. A side plate 1013 is also fixedly installed above the test bench 101, and a water tank 1014 is fixedly connected to one side wall of the side plate 1013. A spray head 1015 is arranged on one side of the water tank 1014, and the spray head 1015 is movable through the side plate 1013. The test bench 101 is also provided with a first outer protective plate 102 and a second outer protective plate 1021. A semicircular plug-in slot 1022 is provided on one side of the first outer protective plate 102, a semicircular plug-in plate 1023 is fixedly connected to one side wall of the second outer protective plate 1021, the semicircular plug-in slot 1022 and the semicircular plug-in plate 1023 fit together, the first outer protective plate 102 inner cavity is fixedly connected to the first inner protective plate 103, the second outer protective plate 1021 is fixedly connected to the second inner protective plate 1031, a rectangular plug-in slot 1032 is provided on the side wall of the first inner protective plate 103, a rectangular plug-in plate 1033 is fixedly connected to the side wall of the second inner protective plate 1031, the rectangular plug-in slot 1032 and the rectangular plug-in plate 1033 fit together, the first outer protective plate 102 and the second outer protective plate 1021 inner cavity are both provided with There are heating and cooling components and detection components. Two symmetrical rectangular notches 1012 are provided above the experimental table 101, and a notch is also provided in the middle of the experimental table 101; the cleaning unit 300 includes a circular mounting plate 301, which is arranged in the middle of the inner cavity of the experimental table 101, and a plug-in slot 3015 is provided above the circular mounting plate 301, and a first plug-in plate 2035 and a second plug-in plate 2038 are plugged in the plug-in slot 3015, and a placement rod 2039 is fixedly connected above the first plug-in plate 2035 and the second plug-in plate 2038, and the other ends of the two placement rods 2039 are respectively fixedly connected to the bottom of the first outer protective plate 102 and the bottom of the second outer protective plate 1021, and the two placement rods 2039 are fixedly connected to the bottom of the first outer protective plate 102 and the second outer protective plate 1021. The rods 2039 are movable through the grooves, and a circular slide groove 3011 is provided on the side wall of the circular mounting plate 301. Two guide sliders 3012 are slidably installed in the inner cavity of the circular slide groove 3011. The two guide sliders 3012 are symmetrical to each other. The two guide sliders 3012 are movable through the limit rods 3013, and the two limit rods 3013 are symmetrical to each other. The two ends of the two limit rods 3013 are fixedly connected to the opposite side walls of the inner cavity of the experimental table 101; the transmission unit 200 includes a driving assembly, and the driving assembly is used to drive the first outer protective plate 102 and the second outer protective plate 1021 to move. The driving assembly can also be used to drive the first outer protective plate 102 and the second outer protective plate 1021 to rotate.The first inner protective plate 103 and the second inner protective plate 1031 are controlled to open by the driving component, so that the frozen soil can fall down. At the same time, when the driving component is running, it can also control the circular mounting plate 301 to move and let it leave the middle of the experimental table 101, so that the frozen soil can be ensured to fall down. When the frozen soil falls down, the driving component is reset at this time, so that the first inner protective plate 103 and the second inner protective plate 1031 are closed, and water can be injected into the inside. At this time, the driving component is started again, so that the first inner protective plate 103 and the second inner protective plate 1031 can be slightly reciprocated, so that the water can shake and clean the inner walls of the first inner protective plate 103 and the second inner protective plate 1031. This is repeated many times to ensure that the residual impurities in the frozen soil on the inner walls of the first inner protective plate 103 and the second inner protective plate 1031 can be cleaned up.

[0039] like Figure 2 and Figures 5 to 7 As shown, in a specific embodiment, the driving assembly includes a servo motor 201, the servo motor 201 is arranged on the inner wall of the experimental table 101, the output end of the servo motor 201 is fixedly connected to a first threaded rod 2011, one end of the first threaded rod 2011 away from the servo motor 201 is fixedly connected to a second threaded rod 2012, the second threaded rod 2012 is rotatably connected to the inner wall of the experimental table 101, the first threaded rod 2011 is meshed with a first threaded sleeve 2013, the second threaded rod 2012 is meshed with a second threaded sleeve 2014, and the first threaded sleeve 2013 and the second threaded sleeve 2014 are respectively fixedly connected to a first connecting rod 2015 and a second connecting rod 2016. In this setting, the installation position and components of the driving assembly are determined.

[0040] like Figure 2 and Figures 5 to 7 As shown, further, the inner cavity of the experimental table 101 is also fixedly connected with a sliding rod 202, and the sliding rod 202 is parallel to the first threaded rod 2011 and the second threaded rod 2012, respectively. The sliding rod 202 is slidably provided with a first sliding sleeve 2021 and a second sliding sleeve 2022, respectively. The first sliding sleeve 2021 and the second sliding sleeve 2022 are respectively fixedly connected with a first connecting rod 2015 and a second connecting rod 2016 above. In this configuration, the installation positions of the first connecting rod 2015 and the second connecting rod 2016 are determined.

[0041] like Figures 1 to 6As shown, further, the first sliding mechanism is connected to the upper part of the two first connecting rods 2015 and the second connecting rod 2016, respectively. The first sliding mechanism includes a first semicircular sliding groove 1024 and a second semicircular sliding groove 1025, which are respectively provided on the first outer protection plate 102 and the second outer protection plate 1021, and the first semicircular sliding groove 1024 and the second semicircular sliding groove 1025 fit each other to form a circle, and the inner cavities of the first semicircular sliding groove 1024 and the second semicircular sliding groove 1025 are respectively slidably installed with two first sliders 1026 and second sliders 1027. In this setting, the installation position and components of the first sliding mechanism are determined.

[0042] like Figures 1 to 6 As shown, further, the bottoms of the two first sliders 1026 and the second slider 1027 are respectively fixedly connected with the first connecting rod 2015 and the second connecting rod 2016. In this arrangement, it is ensured that the first connecting rod 2015 and the second connecting rod 2016 can drive the first slider 1026 and the second slider 1027 to move.

[0043] Embodiment 2:

[0044] The difference between Example 1 and this Example is that: Figure 2 and Figures 5 to 7 As shown, the inner cavity of the test bench 101 of a frozen soil-structure surface frozen soil erosion indoor test simulation device is also provided with two special-shaped sliding rods 203, the opposite ends of the two special-shaped sliding rods 203 are fixedly connected to the guide sliding rods 2031, the opposite ends of the two guide sliding rods 2031 are respectively fixedly connected to the opposite side wall of the test bench 101, the two special-shaped sliding rods 203 and the guide sliding rods 2031 are staggered and symmetrical, and the two special-shaped sliding rods 203 are slidably installed with moving sleeves 2032, and the two moving sleeves 2032 are symmetrical to each other. In this setting, the installation position of the moving sleeve 2032 and the installation position of the special-shaped sliding rod 203 are determined.

[0045] like Figure 2 and Figures 5 to 7 As shown, in a specific embodiment, telescopic rods 2033 are respectively arranged on opposite sides of the two movable sleeves 2032, and the other ends of the telescopic rods 2033 are respectively arranged on the first threaded sleeve 2013 and the second sliding sleeve 2022, and second sliding mechanisms are arranged on opposite sides of the two movable sleeves 2032. In this arrangement, it is ensured that the first threaded sleeve 2013 and the second sliding sleeve 2022 can drive the movable sleeve 2032 to move when they move.

[0046] like Figure 2 and Figures 5 to 7As shown, further, the second sliding mechanism includes two moving slide grooves 2036, which are respectively opened on the side wall opposite to the first plug board 2035 and the second plug board 2038, and the inner cavities of the two moving slide grooves 2036 are both slidably mounted with moving sliders 2037, and the two moving sliders 2037 are hingedly provided with connecting rods 2034, and the opposite ends of the connecting rods 2034 are respectively hingedly provided on the moving sleeve 2032. In this configuration, the installation position and components of the second sliding mechanism are determined.

[0047] Embodiment 3:

[0048] The difference between Example 2 and this example is that: Figure 2 and Figures 5 and 6 As shown, the bottom of the second threaded sleeve 2014 of a frozen soil-structure surface frozen soil erosion indoor test simulation device is fixedly connected to an L-shaped mounting plate 302, a side wall of the L-shaped mounting plate 302 is provided with a wedge block 3021, a slide rail 3023 is provided at the bottom of the wedge block 3021, and the slide rail 3023 is provided at the bottom of the inner cavity of the experimental table 101, a fixed plate 3022 is fixedly connected above the wedge block 3021, a side wall of the fixed plate 3022 is movably connected to a movable rod 3014, and the other end of the movable rod 3014 is movably connected to the guide slider 3012. In this setting, the installation position of the wedge block 3021 is determined, ensuring that the wedge block 3021 can move horizontally.

[0049] like Figure 4 As shown, in a specific embodiment, both upper and lower side walls of the test bench 101 are provided with discharge slots 1016, and a guide sleeve 1017 is fixedly connected to the inner cavity of the discharge slot 1016 near the support leg 1011. In this configuration, the opening position of the discharge slot 1016 is determined.

[0050] The implementation principle of the indoor test simulation device for frozen soil erosion at a frozen soil-structure interface of the present invention is as follows:

[0051] First, the experimenter placed the frozen soil in the first inner protective plate 103 and the second inner protective plate 1031, and subjected the frozen soil to freeze-thaw cycle transformation through the heating and refrigeration components. At the same time, the experimenter sprayed water to the frozen soil in the dynamic thaw cycle transformation through the spraying head 1015 to simulate groundwater. At the same time, the experimenter was able to observe the erosion changes of the frozen soil during the spraying of water and temperature changes through the detection components (this is the prior art);

[0052] When the test is completed, the experimenter starts the servo motor 201, and the servo motor 201 can drive the first threaded rod 2011 to rotate. When the first threaded rod 2011 rotates, it can drive the second threaded rod 2012 to rotate. When the first threaded rod 2011 and the second threaded rod 2012 rotate, they can drive the first threaded sleeve 2013 and the second threaded sleeve 2014 to rotate between the first connecting rod 2015, the second connecting rod 2016, the first semicircular slide groove 1024, and the second semicircular slide groove 1026. 25. The first slider 1026, the second slider 1027, the first outer protective plate 102, the second outer protective plate 1021, the sliding rod 202, the first sliding sleeve 2021 and the second sliding sleeve 2022 can move horizontally, so that the first outer protective plate 102 and the second outer protective plate 1021 can be opened. When the first outer protective plate 102 and the second outer protective plate 1021 are opened, the first inner protective plate 103 and the second inner protective plate 1031 can be driven to open respectively, so that the frozen soil can fall off;

[0053] At the same time, when the first threaded sleeve 2013 and the second sliding sleeve 2022 move horizontally, the telescopic rod 2033 can drive the moving sleeve 2032 to move with the assistance of the special-shaped sliding rod 203 and the guide sliding rod 2031, and can reciprocate forward and backward on the special-shaped sliding rod 203. When the moving sleeve 2032 reciprocates forward and backward, the hinged connecting rod 2034 can drive the first plug-in board 2035 and the second plug-in board 2038 to swing with the assistance of the moving slide groove 2036 and the moving slider 2037, and the circular mounting plate 301 can be driven to rotate slightly back and forth with the assistance of the circular slide groove 3011 and the guide slider 3012.

[0054] When the first plug board 2035 and the second plug board 2038 are reciprocatingly rotated, the first outer protective plate 102 and the second outer protective plate 1021 can be driven to separate by the placement rod 2039, and they can also be slightly reciprocatingly rotated. When the frozen soil falls, the first inner protective plate 103 and the second inner protective plate 1031 arranged in the first outer protective plate 102 and the second outer protective plate 1021 can be slightly rotated, because the water sprayed into the first inner protective plate 103 and the second inner protective plate 1031 by the spray head 1015 will be collected, and because After reaching a certain level, the first inner protection plate 103 and the second inner protection plate 1031 are classified and slightly rotated. At this time, the water still does not fall because it is blocked by the semicircular plug-in plate 1023 and the rectangular plug-in plate 1033. However, the first inner protection plate 103 and the second inner protection plate 1031 are in a rotating state, so the water can be shaken to clean the inner walls of the first inner protection plate 103 and the second inner protection plate 1031, so that the impurities such as frozen soil adhering to the inner walls of the first inner protection plate 103 and the second inner protection plate 1031 can be cleaned;

[0055] At the same time, when the second threaded sleeve 2014 moves to a certain position, it can push the wedge block 3021 to move horizontally with the assistance of the slide rail 3023 through the L-shaped mounting plate 302. When the wedge block 3021 moves horizontally, it can drive the fixed plate 3022 to move. When the fixed plate 3022 moves, it can drive the guide slider 3012 to drive the circular mounting plate 301 to move horizontally through the movable rod 3014, so that the circular mounting plate 301 leaves the discharge slot 1016 opened above and below the experimental table 101, so that it can ensure that the frozen soil and the water cleaning the first inner protective plate 103 and the second inner protective plate 1031 can fall out. The first servo motor 2 When 01 is started, the frozen soil can fall, and then the servo motor 201 drives the first threaded rod 2011 and the second threaded rod 2012 to run in the opposite direction so that the first inner protective plate 103 and the second inner protective plate 1031 can be closed, and at this time the spray head 1015 injects water into the first inner protective plate 103 and the second inner protective plate 1031. After the water injection is completed, the servo motor 201 is started again, so that the injected water can shake inside the first inner protective plate 103 and the second inner protective plate 1031, and the inner walls of the first inner protective plate 103 and the second inner protective plate 1031 are cleaned. Repeating this step can ensure that the inner walls of the first inner protective plate 103 and the second inner protective plate 1031 are cleaned.

Claims

1. An indoor test simulation device for frozen soil erosion at a frozen soil-structure interface, characterized in that: It comprises an installation unit (100), a transmission unit (200) and a cleaning unit (300): The installation unit (100) comprises a laboratory table (101), wherein a cavity is provided in the laboratory table (101), and support legs (1011) are fixedly installed around the bottom of the laboratory table (101), and the four support legs (1011) are symmetrical with each other. A side panel (1013) is also fixedly installed above the laboratory table (101), and a water tank (1014) is fixedly connected to one side wall of the side panel (1013), and a spray head (1015) is provided on one side of the water tank (1014), and the spray head (1015) is movably inserted through the side panel (1013). The laboratory table (101) is also provided with a first outer protective plate (102) and a second outer protective plate (1021), and a semicircular plug-in notch (1022) is provided on one side of the first outer protective plate (1022), and a semicircular plug-in plate (1021) is fixedly connected to one side wall of the second outer protective plate (1021). 023), the semicircular plug-in slot (1022) and the semicircular plug-in plate (1023) fit together, the first outer protective plate (102) is fixedly connected to the inner cavity of the first inner protective plate (103), the second outer protective plate (1021) is fixedly connected to the second inner protective plate (1031), the first inner protective plate (103) is provided with a rectangular plug-in slot (1032) on the side wall, the second inner protective plate (1031) is fixedly connected to the side wall, the rectangular plug-in slot (1032) and the rectangular plug-in plate (1033) fit together, the first outer protective plate (102) and the second outer protective plate (1021) are both provided with a heating and cooling component and a detection component, two mutually symmetrical rectangular slots (1012) are provided on the top of the experimental table (101), and a slot is also provided in the middle of the experimental table (101); The cleaning unit (300) comprises a circular mounting plate (301), the circular mounting plate (301) being arranged in the middle of the inner cavity of the experimental table (101), a plug-in slot (3015) being provided above the circular mounting plate (301), a first plug-in plate (2035) and a second plug-in plate (2038) being plugged in and out of the plug-in slot (3015), a placement rod (2039) being fixedly connected above the first plug-in plate (2035) and the second plug-in plate (2038), the other ends of the two placement rods (2039) being fixedly connected to the bottom of the first outer protective plate (102) and the second outer protective plate (102), respectively. At the bottom of the outer protection plate (1021), the two placement rods (2039) are respectively movably inserted into the notches, and the side wall of the circular mounting plate (301) is provided with a circular slide groove (3011), and two guide sliders (3012) are slidably installed in the inner cavity of the circular slide groove (3011), and the two guide sliders (3012) are symmetrical to each other, and the two guide sliders (3012) are both movably inserted with a limit rod (3013), and the two limit rods (3013) are symmetrical to each other, and the two ends of the two limit rods (3013) are respectively fixedly connected to the two opposite side walls of the inner cavity of the experimental table (101); The transmission unit (200) comprises a driving assembly, wherein the driving assembly is used to drive the first outer protective plate (102) and the second outer protective plate (1021) to move, and the driving assembly can also be used to drive the first outer protective plate (102) and the second outer protective plate (1021) to rotate.

2. The indoor test simulation device for frozen soil erosion at a frozen soil-structure interface according to claim 1, characterized in that: The drive assembly comprises a servo motor (201), the servo motor (201) being arranged on the inner wall of a test bench (101), the output end of the servo motor (201) being fixedly connected to a first threaded rod (2011), one end of the first threaded rod (2011) away from the servo motor (201) being fixedly connected to a second threaded rod (2012), the second threaded rod (2012) being rotatably connected to the inner wall of the test bench (101), a first threaded sleeve (2013) being meshedly mounted on the first threaded rod (2011), a second threaded sleeve (2014) being meshedly mounted on the second threaded rod (2012), and a first connecting rod (2015) and a second connecting rod (2016) being fixedly connected to the first threaded sleeve (2013) and the second threaded sleeve (2014) respectively.

3. The indoor test simulation device for frozen soil erosion at a frozen soil-structure interface according to claim 2, characterized in that: The inner cavity of the experimental table (101) is also fixedly connected to a sliding rod (202), and the sliding rod (202) is parallel to the first threaded rod (2011) and the second threaded rod (2012), respectively. The sliding rod (202) is slidably provided with a first sliding sleeve (2021) and a second sliding sleeve (2022), and the first sliding sleeve (2021) and the second sliding sleeve (2022) are fixedly connected to the top of the first sliding sleeve (2021) and the second sliding sleeve (2022).

4. The indoor test simulation device for frozen soil erosion at a frozen soil-structure interface according to claim 3 is characterized in that: A first sliding mechanism is respectively connected above the two first connecting rods (2015) and the second connecting rods (2016), and the first sliding mechanism includes a first semicircular sliding groove (1024) and a second semicircular sliding groove (1025). The first semicircular sliding groove (1024) and the second semicircular sliding groove (1025) are respectively opened on the first outer protective plate (102) and the second outer protective plate (1021). The first semicircular sliding groove (1024) and the second semicircular sliding groove (1025) fit each other in a circular shape, and the inner cavities of the first semicircular sliding groove (1024) and the second semicircular sliding groove (1025) are respectively slidably installed with two first sliding blocks (1026) and a second sliding block (1027).

5. The indoor test simulation device for frozen soil erosion at the frozen soil-structure interface according to claim 4, characterized in that: The bottoms of the two first sliding blocks (1026) and the second sliding blocks (1027) are respectively fixedly connected with a first connecting rod (2015) and a second connecting rod (2016).

6. The indoor test simulation device for frozen soil erosion at a frozen soil-structure interface according to claim 1, characterized in that: The inner cavity of the experimental table (101) is also provided with two special-shaped sliding rods (203), and the opposite ends of the two special-shaped sliding rods (203) are fixedly connected to the guide sliding rods (2031), and the opposite ends of the two guide sliding rods (2031) are respectively fixedly connected to the opposite side walls of the experimental table (101), and the two special-shaped sliding rods (203) and the guide sliding rods (2031) are staggered and symmetrical with each other, and the two special-shaped sliding rods (203) are slidably mounted with movable sleeves (2032), and the two movable sleeves (2032) are symmetrical with each other.

7. The indoor test simulation device for frozen soil erosion at the frozen soil-structure interface according to claim 6, characterized in that: Telescopic rods (2033) are respectively arranged on opposite sides of the two movable sleeves (2032), and the other ends of the telescopic rods (2033) are respectively arranged on the first threaded sleeve (2013) and the second sliding sleeve (2022), and the second sliding mechanism is respectively arranged on opposite sides of the two movable sleeves (2032).

8. The indoor test simulation device for frozen soil erosion at the frozen soil-structure interface according to claim 7, characterized in that: The second sliding mechanism includes two movable slide grooves (2036), and the two movable slide grooves (2036) are respectively opened on the side walls opposite to the first plug-in board (2035) and the second plug-in board (2038). The inner cavities of the two movable slide grooves (2036) are both slidably installed with movable sliders (2037), and the two movable sliders (2037) are hingedly provided with connecting rods (2034), and the opposite ends of the connecting rods (2034) are respectively hingedly provided on the movable sleeve (2032).

9. The indoor test simulation device for frozen soil erosion at the frozen soil-structure interface according to claim 2, characterized in that: An L-shaped mounting plate (302) is fixedly connected to the bottom of the second threaded sleeve (2014), a wedge-shaped block (3021) is arranged on one side wall of the L-shaped mounting plate (302), a slide rail (3023) is arranged on the bottom of the wedge-shaped block (3021), and the slide rail (3023) is arranged at the bottom of the inner cavity of the experimental table (101), a fixed plate (3022) is fixedly connected above the wedge-shaped block (3021), a movable rod (3014) is movably connected to one side wall of the fixed plate (3022), and the other end of the movable rod (3014) is movably connected to the guide slider (3012).

10. The indoor test simulation device for frozen soil erosion at the frozen soil-structure interface according to claim 1, characterized in that: The upper and lower side walls of the experimental table (101) are both provided with discharge slots (1016), and the inner cavity of the experimental table (101) is fixedly connected with a material guide sleeve (1017) in the inner cavity of the discharge slot (1016) near the supporting leg (1011).

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