A kind of embankment slope rainwater erosion simulation test device convenient for on-site assembly

Abstract

The utility model discloses a kind of road embankment slope rainwater erosion simulation test devices convenient to assemble on site, it is related to the technical field of erosion simulation appliance, including pedestal, the top of pedestal is equipped with inlet pipe, inlet pipe top inner wall has been glued with flow pipe, pressure component is fixedly connected with the top of flow pipe, the top end surface of flow pipe is equipped with shunt valve, thread groove is opened in the inner wall of the both ends of shunt valve, the both ends of shunt valve are connected with outlet pipe by thread groove screwing, the utility model is set through pressing plate, water flow in flow pipe can be compressed, simulate the impact force of different intensity rainfall;By the setting of shower, the spraying effect of different types of rainfall can be simulated by the water droplets sprayed;By the setting of supporting component, the weight of device can be dispersed to larger area ground, reduce the pressure on ground, solve the problem that traditional device supporting area is small, it is easy to settle and tilt in soft ground, leading to test device installation not level, influence rainwater erosion simulation direction accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of erosion simulation equipment, and in particular to a road embankment slope rainwater erosion simulation test device that is easy to assemble on site. Background Technology

[0002] In the construction of highway and railway embankment projects, rainwater erosion of slopes is one of the core hidden dangers leading to slope instability and soil loss, which directly affects the structural safety and service life of the project. In order to accurately evaluate the erosion resistance performance of embankment slopes under different rainfall conditions and guide the optimization of slope protection schemes, rainwater erosion simulation tests of embankment slopes have become a key link in the early design and later maintenance of the project. Traditional testing devices often employ simple support legs or weighted bases, resulting in a small support area and high requirements for site bearing capacity. In soft ground, the device is prone to uneven settlement due to excessive pressure, leading to excessive tilt angle of the base. This causes the spray components to deviate from the preset angle, and the direction of rainwater erosion is seriously inconsistent with the natural rainfall scenario. While some adjustable legs can attempt to calibrate the level, they do not fundamentally expand the support area. The adjustment process is cumbersome and can easily exacerbate settlement. Furthermore, they are difficult to adapt to uneven or locally soft terrain, which not only prolongs the test preparation time but also leads to distorted test data, failing to provide a reliable basis for slope protection design. Therefore, these problems need to be addressed. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a simulated test device for rainwater erosion of embankment slopes that is easy to assemble on-site.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a road embankment slope rainwater erosion simulation test device that is easy to assemble on site, including a base, an inlet pipe at the top of the base, a flow pipe glued to the inner wall of the top of the inlet pipe, a pressure component fixed to the top of the flow pipe, a diversion valve at the top surface of the flow pipe, threaded grooves on the inner walls of both ends of the diversion valve, an outlet pipe screwed into both ends of the diversion valve through the threaded grooves, a connecting sleeve fixed to one end of the outlet pipe, a delay pipe screwed into the connecting sleeve, an end stop inserted into one end of the delay pipe, a shower head on the delay pipe, and a support component at the bottom of the base.

[0005] Preferably, a mounting sleeve is fixedly connected to the top of the base, a support column is slidably engaged inside the mounting sleeve, a support shaft is fixedly connected to the bottom of the support column, a first bevel gear is coaxially fixedly connected to the bottom of the support shaft, a rotating groove is opened on the side wall of the mounting sleeve, and a rotating shaft is rotatably arranged in the rotating groove.

[0006] Preferably, a height adjustment knob is fixedly connected to one end of the rotating shaft extending to the outer wall of the mounting, and a second bevel gear is fixedly connected to the other end of the rotating shaft. The first bevel gear meshes with the second bevel gear, and the top of the support column is inserted into the bottom of the water inlet pipe.

[0007] Preferably, the pressure component includes a fixed block fixed to the top of the flow pipe, a movable groove is provided at the connection between the top side wall of the flow pipe and the fixed block, a pressure plate for compressing water flow is slidably provided in the movable groove, a threaded post is screwed to one side of the fixed block, a knob block is fixed to one end of the threaded post, and the other end of the threaded post is fixed to the side wall of the pressure plate, and a No. 1 water valve is installed in the middle section inside the flow pipe, and a rotating disk is rotatably provided on the No. 1 water valve.

[0008] Preferably, the support component includes a telescopic rod disposed at the bottom of the base, a fixing sleeve fixedly connected to the outer wall of the telescopic rod, a plurality of hinge seats fixedly connected at equal intervals to the top of the fixing sleeve, a flat plate hinged to each hinge seat, a limiting plate fixedly connected to the top of each flat plate, a plurality of connecting plates adapted to the limiting plates fixedly connected to the bottom of the base, and a pin inserted between the limiting plate and the connecting plate.

[0009] Preferably, the bottom outer wall of the flow tube is fixed with a mounting hoop by bolts, and a storage box is fixed to the outer wall of the mounting hoop. A cover plate is hinged to one end of the storage box, and a first electric telescopic column is installed on the inner wall of one end of the storage box. The extended end of the first electric telescopic column is equipped with a camera for recording the experimental process. Two second electric telescopic columns are symmetrically arranged on both sides inside the storage box, and the extended ends of the two second electric telescopic columns are fixed with a fixing flexible plate for auxiliary fixing of the monitoring equipment.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the water flow in the circulation pipe can be compressed by the cooperation of the fixing block and the pressure plate, changing the water flow pressure and simulating the impact force of rainfall of different intensities; the water droplets sprayed by the cooperation of the end block and the shower can realistically simulate the spraying effect of different types of rainfall; the setting of the support components can distribute the weight of the device to a larger area of ​​the ground, reduce the pressure on the ground, and prevent the device from settling in soft ground. This solves the problem that traditional devices have a small support area, are prone to settling and tilting in soft ground, resulting in the experimental device not being installed horizontally, which affects the accuracy of the direction of rainwater erosion simulation. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall first-view structure proposed in this utility model; Figure 2 This is a schematic diagram of the internal second-view structure proposed in this utility model; Figure 3 This is a schematic diagram of the structure of some parts proposed in this utility model; Figure 4 This is a schematic diagram of the shower head structure proposed in this utility model; Figure 5 This is a schematic diagram of the storage box structure proposed in this utility model.

[0012] The following are the components listed in the diagram: 1. Base; 2. Inlet pipe; 3. No. 1 water valve; 4. Fixing block; 5. Flat plate; 6. Telescopic rod; 7. Height adjustment knob; 8. Rotating disc; 9. Pressure plate; 10. Diverter valve; 11. Shower head; 12. End stop block; 13. Storage box; 14. Fixing soft board. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figures 1 to 5 This utility model discloses a road embankment slope rainwater erosion simulation test device that is easy to assemble on-site. It includes a base 1, with an inlet pipe 2 at the top of the base 1. The inlet pipe 2 facilitates the delivery of water to the device for simulation testing, ensuring stable water flow. A flow pipe is glued to the inner wall of the top of the inlet pipe 2, and a pressure component is fixed to the top of the flow pipe. A diversion valve 10 is provided on the top surface of the flow pipe, allowing for the connection of different numbers of outlet pipes according to test requirements, flexibly adjusting the spray range to adapt to test needs of road embankment slopes of different widths. Threaded grooves are formed on the inner walls of both ends of the diversion valve 10, and outlet pipes are screwed onto both ends of the diversion valve 10 through these grooves. A connecting sleeve is fixed to one end of the outlet pipe, and a delay pipe is screwed into the connecting sleeve. An end stop 12 is inserted into one end of the delay pipe, and a sprinkler 11 is provided on the delay pipe. The sprinkler 11 facilitates the conversion of the water flow delivered by the outlet pipe into uniform water droplets or streams, simulating the form of natural rainfall, and spraying erosion onto the road embankment slope. Support components are provided at the bottom of the base 1.

[0015] In this invention, a mounting sleeve is fixedly connected to the top of the base 1, a support column is slidably engaged within the mounting sleeve, a support shaft is fixedly connected to the bottom of the support column, and a first bevel gear is coaxially fixedly connected to the bottom of the support shaft. A rotating groove is provided on the side wall of the mounting sleeve, and a rotating shaft is rotatably mounted within the rotating groove. The first bevel gear facilitates precise torque transmission, ensuring uniform lifting speed of the support column; the gear structure has high strength. A height adjustment knob 7 is fixedly connected to one end of the rotating shaft extending to the outer wall of the mounting sleeve, and a second bevel gear is fixedly connected to the other end of the rotating shaft. The first bevel gear meshes with the second bevel gear. The top of the support column is inserted into the bottom of the water inlet pipe 2, and the height adjustment knob 7 allows for precise torque transmission. The height of the inlet pipe 2 and subsequent spray components can be precisely adjusted according to experimental requirements to simulate the erosion effect of rainwater falling from different heights. The pressure component includes a fixed block 4 fixed to the top of the flow pipe. A movable groove is opened at the connection between the top side wall of the flow pipe and the fixed block 4. A pressure plate 9 for compressing water flow is slidably installed in the movable groove. A threaded column is screwed to one side of the fixed block 4. A knob block is fixed to one end of the threaded column, and the other end of the threaded column is fixed to the side wall of the pressure plate 9. The pressure component allows for precise adjustment of water flow pressure to simulate the impact force of rainfall of different intensities. A No. 1 water valve 3 is installed in the middle section of the flow pipe. The No. 1 water valve 3 is rotated upwards. The device is equipped with a rotating disc 8, which allows for easy control of the flow and flow rate of water in the circulation pipe via a No. 1 water valve 3, thus regulating the amount of water entering subsequent pipes. The support components include a telescopic rod 6 located at the bottom of the base 1. A fixed sleeve is fixed to the outer wall of the telescopic rod 6, and multiple hinge seats are equidistantly fixed to the top of the fixed sleeve. Each hinge seat is hinged to a flat plate 5, and a limit plate is fixed to the top of each flat plate 5. Multiple connecting plates adapted to the limit plates are fixed to the bottom of the base 1, and pins are inserted between the limit plates and the connecting plates. The support components facilitate the distribution of the device's weight across a larger area of ​​the ground, reducing pressure on the ground and avoiding... The device is designed to prevent settling in soft ground. A mounting clamp is bolted to the outer wall of the bottom of the flow pipe, and a storage box 13 is fixed to the outer wall of the mounting clamp. A cover plate is hinged to one end of the storage box 13, and a first electric telescopic column is installed on the inner wall of one end of the storage box 13. A camera for recording the experimental process is installed at the extended end of the first electric telescopic column. Two second electric telescopic columns are symmetrically arranged on both sides inside the storage box 13. A fixing flexible plate 14 for auxiliary fixing of the monitoring equipment is fixed to the extended end of each of the two second electric telescopic columns. The storage box 13 facilitates the protection of the monitoring equipment and can accommodate monitoring equipment of different sizes without damage.

[0016] Working Principle: When using this invention, the device is first installed on-site. A shallow pit matching the size of the base 1 is excavated in the test area on the embankment slope. The base 1 is placed in the pit, its position adjusted, and then backfilled and compacted with soil to ensure a tight fit between the bottom of the base 1 and the soil, enhancing its resistance to displacement. Then, the unfolding plate 5 next to the telescopic rod 6 at the bottom of the base 1 is unfolded. The unfolding plate 5 is laid flat on the ground around the base 1 using a hinged joint. Shallow trenches are excavated to bury the edges of the unfolding plate 5 in the soil. The buried unfolding plate 5 further expands the contact area between the device and the ground. Combined with the burial and fixation of the base 1, it can effectively... Effectively resists the risks of subsidence and tilting caused by water flow impact and soft ground; adjust the extension of the telescopic rod 6, and use a level to assist in calibrating the levelness of the base 1, providing a stable and level foundation for subsequent tests. Next, connect the external water source to the inlet pipe 2, and rotate the rotating disc 8 on the first water valve 3. The rotating disc 8 drives the valve core to rotate, opening the valve and adjusting the opening degree to control the water flow in the flow pipe, meeting the simulation requirements of different rainfall intensities. Under the control of the first water valve 3, the water in the flow pipe is stably delivered to the pressure component area at the top, preparing for subsequent pressure adjustment. Then, according to the rain impact force required for the test, rotate... The threaded column knob on one side of the fixed block 4 pushes the pressure plate 9 to slide along the movable groove at the top of the flow pipe. The pressure plate 9 compresses the water flow in the flow pipe, changing the water pressure. The greater the pressure, the stronger the impact of water droplets during subsequent spraying, which can simulate the erosion effect of heavy rainfall such as rainstorms on slopes. The fixed block 4 provides stable support for the threaded column and the pressure plate 9, ensuring that the pressure plate 9 slides smoothly during pressure adjustment and that the water pressure does not fluctuate drastically. Then, the storage box 13, which is fixed at the bottom of the flow pipe by the installation hoop, is opened, and the first electric telescopic column on the inner wall of one end of the storage box 13 is activated. The first electric telescopic column drives the camera at the top to extend. Outside the storage box 13, the camera lens is precisely aimed at the test area to begin recording the erosion process. At the same time, the second electric telescopic columns on both sides inside the storage box 13 are activated to push the fixed flexible plate 14 towards the center. The monitoring equipment can then be clamped and fixed between the two fixed flexible plates 14. The flexible material of the fixed flexible plate 14 can prevent the equipment from being damaged by pressure. The monitoring equipment can support fixed-position recording during the test (such as mobile phone, GoPro, or small camera, which only needs to record the process of slope erosion, without recording the entire simulated rainfall process), forming image data for future design and supervision inspection.Simultaneously, ensure that the equipment does not shift due to vibration during the test. Next, the water flow with adjusted pressure enters the diversion valve 10. The diversion valve 10 distributes the water flow evenly to multiple pipelines through the outlet pipes connected by threaded grooves at both ends. According to the width of the embankment slope, screw the delay pipe into the connecting sleeve of the outlet pipe. After adjusting the length and position of the delay pipe, insert the end stop 12 into one end of the delay pipe to seal the end of the delay pipe. The end stop 12 ensures that all the water flow is sprayed out from the shower head 11 on the delay pipe, avoiding water waste and ensuring stable spray pressure of the shower head 11. Finally, rotate the height adjustment knob 7. The knob drives the rotating shaft and the second bevel gear fixed to the rotating shaft to rotate. The second bevel gear meshes with the first bevel gear at the bottom of the support shaft, converting the horizontal rotational motion into vertical rotational motion, driving the support shaft and support column to rise and fall, thereby adjusting the height of the water inlet pipe 2 and the subsequent spray components. Different heights can simulate the erosion effect of rainwater falling from different heights on the slope. Opening the diversion valve 10 control switch, water flows through the outlet pipe and delay pipe and sprays out from the sprinkler 11, realistically simulating the erosion process of rainwater on the slope. This concludes the use of the embankment slope rainwater erosion simulation test device, which is easy to assemble on site.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for simulating rain erosion of embankment slopes, which is convenient for on-site assembly, comprising a base (1), characterized in that: The base (1) is provided with a water inlet pipe (2) at the top. A flow pipe is glued to the inner wall of the top of the water inlet pipe (2). A pressure component is fixed to the top of the flow pipe. A diversion valve (10) is provided on the top surface of the flow pipe. Threaded grooves are opened on the inner walls of both ends of the diversion valve (10). Water outlet pipes are screwed into both ends of the diversion valve (10) through the threaded grooves. A connecting sleeve is fixed to one end of the water outlet pipe. A delay pipe is screwed into the connecting sleeve. An end stop block (12) is inserted into one end of the delay pipe. A shower head (11) is provided on the delay pipe. A support component is provided at the bottom of the base (1).

2. The device for simulating the rain erosion of embankment slope according to claim 1, characterized in that: The base (1) has an installation sleeve fixedly connected to the top, a support column is slidably engaged in the installation sleeve, a support shaft is fixedly connected to the bottom of the support column, a first bevel gear is coaxially fixedly connected to the bottom of the support shaft, a rotating groove is opened on the side wall of the installation sleeve, and a rotating shaft is rotatably provided in the rotating groove.

3. The device for simulating the rainfall erosion of embankment slopes according to claim 2, characterized in that: The shaft extends to one end of the mounting outer wall and is fixedly connected to a height adjustment knob (7). The other end of the shaft is fixedly connected to a second bevel gear. The first bevel gear meshes with the second bevel gear. The top of the support column is inserted into the bottom of the water inlet pipe (2).

4. The device for simulating the rainfall erosion of embankment slopes according to claim 1, characterized in that: The pressure component includes a fixed block (4) fixed to the top of the flow pipe. A movable groove is provided at the connection between the top side wall of the flow pipe and the fixed block (4). A pressure plate (9) for compressing water flow is slidably provided in the movable groove. A threaded column is screwed to one side of the fixed block (4). A knob block is fixed to one end of the threaded column. The other end of the threaded column is fixed to the side wall of the pressure plate (9). A No. 1 water valve (3) is installed in the middle section inside the flow pipe. A rotating disk (8) is rotatably provided on the No. 1 water valve (3).

5. The device for simulating the rainfall erosion of embankment slopes according to claim 1, characterized in that: The supporting component includes a telescopic rod (6) located at the bottom of the base (1). A fixed sleeve is fixed to the outer wall of the telescopic rod (6). Multiple hinge seats are fixed at equal intervals on the top of the fixed sleeve. A flat plate (5) is hinged to each hinge seat. A limiting plate is fixed to the top of each flat plate (5). Multiple connecting plates adapted to the limiting plates are fixed to the bottom of the base (1). A pin is inserted between the limiting plate and the connecting plate.

6. The device for simulating the rainfall erosion of embankment slopes according to claim 1, characterized in that: The bottom outer wall of the flow tube is fixed with a mounting hoop by bolts. The outer wall of the mounting hoop is fixed with a storage box (13). One end of the storage box (13) is hinged with a cover plate. One end of the storage box (13) is installed with a first electric telescopic column. The extended end of the first electric telescopic column is equipped with a camera for recording the experimental process. Two second electric telescopic columns are symmetrically arranged on both sides inside the storage box (13). The extended ends of the two second electric telescopic columns are fixed with a fixing soft plate (14) for auxiliary fixing of the monitoring equipment.

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