Test device for rapidly simulating shallow trench development process

Abstract

The utility model discloses a test device for rapidly simulating a shallow trench development process, which comprises a test rack, a water collecting tank is arranged at the bottom in the test rack, a motor is fixedly connected to one side of the outer wall of the test rack, a motor driving shaft penetrates through the test rack and is fixedly connected with a simulation tank, and a water filtering layer is arranged at the bottom in the simulation tank. A simulation groove is formed in the test rack, baffles are arranged at the two ends of the simulation groove, a linear motor is fixedly connected to the outer portion of the test rack in an embedded mode, the driving end of the linear motor is fixedly connected with a rainfall simulation mechanism, the rainfall simulation mechanism comprises a sliding frame fixedly connected with the driving end of the linear motor, and a water tank is fixedly connected to the top of the sliding frame; a pump body is arranged in the center of the water tank, and a spraying head is arranged at the bottom in the sliding frame. According to the utility model, through the mutual cooperation of the simulation groove, the water filtering layer and the rainfall simulation mechanism, the shallow trench development process can be conveniently simulated under various conditions, and support is provided for workers to better research the land shallow trench development process.

Description

Technical Field

[0001] The utility model relates to the technical field of shallow groove simulation test equipment, in particular to a test device for rapidly simulating the shallow groove development process. Background Art

[0002] Shallow gullies are the product of the occurrence and development of gully erosion on slope surfaces. After the shallow gullies are formed, the original slope morphology is changed, the erosion process is accelerated, and the amount of soil erosion is increased.

[0003] At present, most of the existing research on shallow gully development process is carried out based on outdoor land. The experiment is affected by the test location, angle, rainfall and other conditions, and the test cycle is relatively long. There are many inconveniences in the study of shallow gully development process. Therefore, we propose to design an experimental device for rapid simulation of shallow gully development process, which can simulate the shallow gully development process under various conditions to facilitate better research. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A test device for rapidly simulating the shallow groove development process, comprising a test frame, a water collecting tank is arranged at the bottom of the test frame, a motor is fixedly connected to one side of the outer wall of the test frame, a driving shaft of the motor passes through the test frame and is fixedly connected to a simulation tank, a water filter layer is arranged at the bottom of the simulation tank, baffles are arranged at both ends of the simulation tank, a linear motor is embedded and fixedly connected to the outside of the test frame, and a simulated rainfall mechanism is fixedly connected to the driving end of the linear motor;

[0007] The simulated rainfall mechanism includes a slide fixedly connected to the driving end of the linear motor, the top of the slide is fixedly connected to a water tank, a pump body is arranged at the center of the water tank, a spray head is arranged at the bottom of the slide, and water blocking plates are slidably connected to both sides of the spray head.

[0008] As a preferred solution of the test device for quickly simulating the shallow groove development process described in the utility model, the bottom of the simulation tank is open, the water filtration layer includes two filter screens, a concrete plate is arranged between the two filter screens, and a plurality of slits are arranged in the concrete plate to facilitate the discharge of water in the simulation tank for recycling.

[0009] As a preferred solution of the test device for quickly simulating the shallow groove development process described in the utility model, both ends of the simulation groove are provided with installation grooves corresponding to the baffles, and the baffles are slidably connected to the installation grooves accordingly, and the baffles can be disassembled to facilitate the cleaning and replacement of the test land in the simulation groove.

[0010] As a preferred solution of the test device for quickly simulating the shallow gully development process described in the utility model, a drainage gate is slidably connected to the center of the top of the baffle. When the drainage gate is pulled out upward, it is convenient to discharge the water floating above the land in the simulation trough at the initial stage of the test, thereby further restoring the shallow gully erosion of the land.

[0011] As a preferred solution of a test device for quickly simulating the shallow groove development process described in the utility model, a slide rail corresponding to the slide is provided on the side of the test frame away from the linear motor, and the slide is slidably connected to the slide rail to facilitate moving the slide to adjust the simulated rainfall position.

[0012] As a preferred solution of the test device for quickly simulating the shallow ditch development process described in the utility model, a water injection pipe is arranged on the top of the water tank, and the water injection pipe is connected to an external water source, so as to facilitate the replenishment of water into the water tank. At the same time, rainfall operations can also be carried out without replenishing water. The water pumping end of the pump body passes through the water tank and is connected thereto, so as to facilitate the pump body to pump water out of the water tank.

[0013] As a preferred solution of a test device for quickly simulating the shallow ditch development process described in the utility model, a universal joint connector is commonly provided between the sprinkler head and the top of the slide, and the drainage end of the pump body is correspondingly connected to the sprinkler head through the universal joint connector, so that water can be sprayed out from the sprinkler head through the universal joint connector to simulate rainfall above the shallow ditch.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model facilitates the simulation of shallow ditch development process under various conditions by cooperating between the simulation trough, the water filter layer and the simulation rainfall mechanism, and provides support for the staff to better study the shallow ditch development process of the land. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 This is a schematic diagram of the structure of a test device for quickly simulating the shallow groove development process of the utility model;

[0018] Figure 2 This is a schematic diagram of a simulation tank structure of a test device for quickly simulating the shallow groove development process of the utility model;

[0019] Figure 3 This is a schematic diagram of the water filtration layer structure of a test device for quickly simulating the shallow ditch development process of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a slide structure of a test device for quickly simulating the shallow groove development process.

[0021] Legend: 1. Test frame; 2. Motor; 3. Simulation tank; 4. Filter layer; 401. Filter screen; 402. Concrete slab; 5. Baffle; 501. Drain gate; 6. Mounting tank; 7. Water collection tank; 8. Linear motor; 9. Simulated rainfall mechanism; 10. Slide; 11. Water tank; 12. Pump body; 13. Sprinkler head; 14. Universal joint connector; 15. Water blocking plate. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] See also Figure 1-4 The utility model provides a test device for quickly simulating the shallow groove development process, including a test frame 1, a water collecting tank 7 is arranged at the bottom of the test frame 1, a motor 2 is fixedly connected to one side of the outer wall of the test frame 1, the driving shaft of the motor 2 passes through the test frame 1 and is fixedly connected to the simulation tank 3, a water filtering layer 4 is arranged at the bottom of the simulation tank 3, wherein the bottom of the simulation tank 3 is open, the water filtering layer 4 includes two filter screens 401, a concrete plate 402 is arranged between the two filter screens 401, and a plurality of slits are arranged in the concrete plate 402, so as to discharge the water in the simulation tank 3 for recycling.

[0026] Baffles 5 are provided at both ends of the simulation tank 3. Mounting grooves 6 corresponding to the baffles 5 are provided at both ends of the simulation tank 3. The baffles 5 are slidably connected to the mounting grooves 6. The baffles 5 can be disassembled to facilitate cleaning and replacement of the test land in the simulation tank 3. At the same time, a drainage gate 501 is slidably connected at the center of the top of the baffle 5. When the drainage gate 501 is pulled out upward, it is convenient to discharge the water floating above the land in the simulation tank 3 at the initial stage of the test, thereby further restoring the shallow ditch erosion of the land.

[0027] A linear motor 8 is embedded and fixedly connected to the outside of the test frame 1 , and a simulated rainfall mechanism 9 is fixedly connected to the driving end of the linear motor 8 .

[0028] The simulated rainfall mechanism 9 includes a slide 10 fixedly connected to the driving end of the linear motor 8. A slide rail corresponding to the slide 10 is provided on the side of the test frame 1 away from the linear motor 8. The slide 10 is slidably connected to the slide rail to facilitate moving the slide 10 to adjust the simulated rainfall position.

[0029] A water tank 11 is fixedly connected to the top of the slide 10, a pump body 12 is arranged at the center of the water tank 11, a water injection pipe is arranged on the top of the water tank 11, and the water injection pipe is connected to an external water source, so as to replenish water into the water tank 11. At the same time, rainfall operations can also be carried out without replenishing water. The water pumping end of the pump body 12 passes through the water tank 11 and is connected thereto, so as to facilitate the pump body 12 to pump water out of the water tank 11 and spray it out.

[0030] A spray head 13 is provided at the bottom of the slide 10, and a universal joint connector 14 is provided between the spray head 13 and the top of the slide 10. The drainage end of the pump body 12 is connected to the spray head 13 through the universal joint connector 14, so that water can be sprayed out from the spray head 13 to simulate rainfall above the shallow ditch.

[0031] Water blocking plates 15 are slidably connected to both sides of the spray head 13, so as to block the spray holes at both ends of the spray head 13 and centrally control the precipitation area.

[0032] When in use, first place the simulated test soil material in the simulated trough 3, and mark out the shallow ditch area in advance. After a sufficient amount of water is poured into the water tank 11, start the pump body 12 to pump water out of the water tank 11 and pass it into the sprinkler head 13 to spray it out, simulating the rainfall above the shallow ditch. By adjusting the position of the water blocking plate 15, it is convenient to simulate different precipitation areas and achieve local rainfall, etc., and by adjusting the water supply of the pump body 12, it is convenient to simulate the erosion of the shallow ditch by different rainfall amounts.

[0033] During rainfall, the motor 2 is connected to an external power source and started. The motor 2 drives the drive shaft to rotate, and then drives the simulation tank 3 to rotate, so as to adjust the angle of the simulation tank 3 and the test land inside it, so that the inclination angle of the inclined surface changes between 10° and 30°, so as to simulate the erosion of shallow gully development slopes under different conditions.

[0034] If the soil water permeability is insufficient at the beginning of the simulation test, the drainage door 501 on the baffle plate 5 can be opened to drain the water, and the water can be recycled and filtered for reuse. The water that penetrates into the test soil can pass through the filter screen 401 and the concrete plate 402 and flow into the water collection tank 7 for recycling.

[0035] The filter screen 401 on the upper layer has a larger mesh size and can filter out some gravel and other particles, while impurities such as soil that can flow with water can fall into the narrow gaps in the concrete slab 402 and accumulate, which is convenient for maintaining the support of the test land, preventing land collapse, and simulating the development process of the shallow ditch to the maximum extent.

[0036] During the simulated rainfall process, and even for a period of time after the rainfall, staff can use external fans to assist in blowing air on the simulated land to simulate wind erosion above the shallow ditch.

[0037] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A test device for rapidly simulating the shallow groove development process, comprising a test frame (1), characterized in that: The test frame (1) is provided with a water collecting trough (7) at the bottom thereof, a motor (2) is fixedly connected to one side of the outer wall of the test frame (1), a driving shaft of the motor (2) passes through the test frame (1) and is fixedly connected to a simulation trough (3), a water filtering layer (4) is provided at the bottom thereof, baffles (5) are provided at both ends of the simulation trough (3), a linear motor (8) is embedded and fixedly connected to the outside of the test frame (1), and a simulated rainfall mechanism (9) is fixedly connected to the driving end of the linear motor (8); The simulated rainfall mechanism (9) comprises a carriage (10) fixedly connected to the driving end of the linear motor (8); a water tank (11) is fixedly connected to the top of the carriage (10); a pump body (12) is arranged at the center of the water tank (11); a spray head (13) is arranged at the bottom of the carriage (10); and water blocking plates (15) are slidably connected to both sides of the spray head (13).

2. A test device for rapidly simulating shallow groove development process according to claim 1, characterized in that: The bottom of the simulation tank (3) is open, the water filter layer (4) comprises two filter screens (401), a concrete slab (402) is arranged between the two filter screens (401), and a plurality of slits are arranged in the concrete slab (402).

3. The test device for rapidly simulating the shallow groove development process according to claim 1, characterized in that: Both ends of the simulation groove (3) are provided with mounting grooves (6) corresponding to the baffle plate (5), and the baffle plate (5) is slidably connected to the mounting grooves (6) accordingly.

4. The test device for rapidly simulating the shallow groove development process according to claim 1, characterized in that: A drainage door (501) is slidably connected to the center of the top of the baffle (5).

5. The test device for rapidly simulating the shallow groove development process according to claim 1, characterized in that: A slide rail corresponding to the slide (10) is provided on the side of the test frame (1) away from the linear motor (8), and the slide (10) is slidably connected to the slide rail.

6. The test device for rapidly simulating the shallow groove development process according to claim 1, characterized in that: A water injection pipe is arranged on the top of the water tank (11), and the water injection pipe is connected to an external water source. The water pumping end of the pump body (12) passes through the water tank (11) and is connected thereto.

7. The test device for rapidly simulating the shallow groove development process according to claim 1, characterized in that: A universal joint connector (14) is provided between the spray head (13) and the inner top of the slide frame (10), and the drainage end of the pump body (12) is correspondingly connected to the spray head (13) via the universal joint connector (14).

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