Sand dune leveling and shaping device for roadbed sand accumulation model test

Abstract

The utility model relates to the technical field of desert roadbed sand accumulation model test auxiliary work, in particular to a sand dune leveling and shaping device used in a roadbed sand accumulation model test, which comprises a measuring and shaping assembly and a supporting and moving assembly, the measuring and shaping assembly comprises a clamping groove and a shaping part main body, the shaping part main body is composed of a plurality of groups of shaping sheets; a limiting part is arranged at the top of the shaping piece, a shaping scraping piece is arranged at the bottom of the shaping piece, and a limiting fixing lock is arranged on one side of the clamping groove; the supporting and moving assembly comprises a supporting frame and sliding wheels, the top of the supporting frame is connected to the two sides of the bottom of the clamping groove, and the sliding wheels are arranged at the bottom of the supporting frame; according to the device, the sand dune model can be conveniently placed and shaped, the test time is saved, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary work in the sand accumulation model test of desert subgrade in the sand and wind experiment. More specifically, it particularly relates to a sand dune leveling and shaping device for the sand accumulation model test of subgrade. Background Technique

[0002] When conducting the sand accumulation model test of desert subgrade, since it is necessary to simulate the desert environment outdoors and observe the situation of the subgrade model being buried by sand grains by simulating the desert wind speed with a fan, various different experiments need to be carried out. In the preparation stage of each experiment, it is necessary to manually arrange and shape the sand dune model, resulting in that factors such as the height, slope, and trend of the sand dune model in each experiment cannot match the data of the previous experiment. Therefore, how to quickly and efficiently shape the sand dune model on the ground and level the height of the sand bed has become an important problem to be solved in the test process.

[0003] In the traditional method of shaping the sand dune model in the sand and wind experiment, generally, sand is directly poured into the test site with a container, and a broom, a scraper, and hands are used to shape the sand dune model required for the experiment. Although this method is effective, it cannot match the data of the sand dune model in the previous experiment, and it is even more impossible to control variables. To improve this situation, it is necessary to explore a more efficient, convenient, and fast sand dune shaping method. Content of the Utility Model

[0004] The utility model aims to overcome the above deficiencies and provides a sand dune leveling and shaping device for the sand accumulation model test of subgrade, which can quickly shape the sand dune under the condition of ensuring consistency with the data of the previous sand dune model during the preparation stage of each experiment; in addition, it can also accurately level the thickness of the sand bed.

[0005] A sand dune leveling and shaping device for the sand accumulation model test of subgrade disclosed by the utility model includes a measurement and shaping component and a support and moving component, and is characterized in that: the measurement and shaping component includes a card slot and a shaping component main body, and the shaping component main body is arranged inside the card slot;

[0006] The support and moving component includes a support frame and pulleys, the support frame is connected to both sides of the bottom of the card slot, and the pulleys are arranged at the bottom of the support frame.

[0007] Preferably, the shaping component main body is composed of multiple groups of shaping sheets, and the shaping sheets can move up and down.

[0008] Preferably, a limiting part is arranged at the top of the shaping sheet.

[0009] Preferably, the bottom of the shaping sheet is an inclined surface with an inclined angle, and a shaping scraper is arranged at the top end thereof, and the material of the shaping scraper is a soft plastic sheet.

[0010] Preferably, longitudinal scales are provided on the side of the shaping sheet.

[0011] Preferably, a scale plate is provided on the front of the card slot, and horizontal scales are engraved on the scale plate.

[0012] Preferably, a fixed cover plate is provided at the back of the card slot, and the fixed cover plate is connected to the card slot by screws.

[0013] Preferably, a limit fixing lock is provided on one side of the card slot.

[0014] Preferably, the support frame is a triangular truss structure, and a telescopic rod is provided inside it; the pulleys are arranged at both ends of the bottom of the support frame.

[0015] Therefore, the present utility model is a dune leveling and shaping device for subgrade sand accumulation model tests adopting the above structure, and its beneficial effects are as follows:

[0016] (1) The present utility model can quickly make a layout and shape the dune model, ensure consistency with the previous experimental condition data, and accurately control data variables.

[0017] (2) The present utility model can greatly reduce the time required for preparation work. In the later stage of data processing, the cross-sectional shape and various parameters of the dune can be directly obtained, so as to retain and compare data, save experimental time, and improve experimental efficiency.

[0018] The technical solution of the present utility model will be further described in detail below through the accompanying drawings and embodiments. Description of the Drawings

[0019] Figure 1 is an overall structural schematic diagram of a dune leveling and shaping device for subgrade sand accumulation model tests;

[0020] Figure 2 is a front structural schematic diagram of a dune leveling and shaping device for subgrade sand accumulation model tests;

[0021] Figure 3 is a left view of a dune leveling and shaping device for subgrade sand accumulation model tests;

[0022] Figure 4 is a top view of a dune leveling and shaping device for subgrade sand accumulation model tests;

[0023] Figure 5 is a bottom detail view of a dune leveling and shaping device for subgrade sand accumulation model tests;

[0024] Figure 6It is a detailed view of a shaping sheet of a dune leveling and shaping device used in a subgrade sand accumulation model test.

[0025] Reference numerals

[0026] 1. Measuring and shaping component; 2. Support and moving component; 3. Main body of shaping part; 4. Limit and fixing lock; 5. Card slot; 6. Support frame; 7. Scale; 8. Pulley; 9. Fixed cover plate; 10. Shaping sheet; 11. Shaping scraper; 12. Limiting part. Detailed implementation manners

[0027] The technical solutions of the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] Unless otherwise defined, the technical terms or scientific terms used in the present utility model shall have the ordinary meanings understood by those of ordinary skill in the field to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. The words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] As Figures 1-6 shown, a dune leveling and shaping device used in a subgrade sand accumulation model test includes a measuring and shaping component 1 and a support and moving component 2. The measuring and shaping component 1 includes a main body 3 of the shaping part and a card slot 5. The main body 3 of the shaping part is composed of multiple groups of shaping sheets 10, and the shaping sheets 10 can move freely up and down; a limiting part 12 is provided at the top of the shaping sheet 10. The two sides of the limiting part 12 protrude outwards, and the middle of the top is recessed inwards, presenting an H-shaped structure, which can prevent the shaping sheet 10 from slipping off from the lower part of the card slot 5 when adjusting the shaping sheet 10; the bottom of the shaping sheet 10 is designed as an inclined surface with an inclined angle. When shaping the dune, align one side of the inclined surface with the dune and move it slowly and evenly. When shaping the dune, the resistance can be reduced, so that the surface of the dune is smooth and has a certain continuity; a shaping scraper 11 is provided at the top end of the inclined surface at the bottom of the shaping sheet 10, which can further make the surface of the dune model smooth and the heights are approximately the same, and the effects are consistent. Longitudinal scales 7 are marked on the side surfaces of the shaping sheets 10, and the unit is mm. The height of the shaping sheets 10 can be adjusted according to the height requirements of the dune model to meet the experimental requirements.

[0030] On one side of the card slot 5, there is a limit fixing lock 4. When the limit fixing lock 4 is rotated to be parallel, the shaping piece 10 can move freely up and down. When rotated counterclockwise by 90°, the shaping piece 10 is fixed and cannot move up and down, keeping the cross-section of the shaping structure unchanged; on the back of the card slot 5, there is a fixed cover plate 9, which is connected to the card slot 5 by screws. By opening the fixed cover plate 9, shaping pieces 10 of different model specifications can be switched, which is suitable for dune shaping under different conditions; on the front of the card slot 5, there is a horizontal scale 7, which can be adjusted according to the test width of the dune model.

[0031] The support moving component 2 includes a support frame 6 and pulleys 8. The support frame 6 is connected to both sides of the bottom of the card slot 5. Its overall structure is a triangular truss structure, which can provide good structural strength. An expansion link is provided inside it, and the overall height of the device can be adjusted according to the experimental site and experimental requirements, which is suitable for different experimental sites and different experimental requirements; the pulleys 8 are installed at both ends of the bottom of the support frame 6, two on each side, which can convert sliding friction into rolling friction and reduce the resistance brought by sand grains in the experimental site.

[0032] Before the experiment starts, pile the test sand at the designated position, adjust the shaping piece 10 and the support frame 6 up and down according to the required height of the experiment. After adjustment, place them on one side of the sand pile. When the device moves from the left side to the right side of the site, dunes with similar surface roughness, the same slope and height can be obtained. In addition, when the shaping pieces 10 are adjusted to the same height and slide from one side to the other side of the site, a sand bed with the same thickness can be obtained in the experimental site.

[0033] In summary, the present utility model adopts a dune leveling and shaping device for subgrade sand accumulation model experiments with the above structure, which avoids many errors that occur in manual shaping before the experiment, saves time, and further improves the experimental efficiency and experimental accuracy.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A dune leveling and shaping device for subgrade sand accumulation model tests, comprising a measurement and shaping component and a support and movement component, characterized in that: The measurement and shaping component includes a card slot and a shaping component main body, and the shaping component main body is arranged inside the card slot; The support and movement component includes a support frame and pulleys. The support frame is connected to both sides of the bottom of the card slot, and the pulleys are arranged at the bottom of the support frame.

2. The dune leveling and shaping device for subgrade sand accumulation model tests according to claim 1, characterized in that, The shaping component main body is composed of multiple groups of shaping sheets, and the shaping sheets can move up and down.

3. A dune leveling and shaping device for subgrade sand accumulation model tests according to claim 2, characterized in that, A limiting part is arranged at the top of the shaping sheet.

4. The dune leveling and shaping device for subgrade sand accumulation model tests according to claim 3, wherein The bottom of the shaping sheet is an inclined surface with an inclination angle, and a shaping scraper is provided at its top end. The shaping scraper is made of a soft plastic sheet.

5. The dune leveling and shaping device for subgrade sand accumulation model test according to claim 4, characterized in that, A longitudinal scale is arranged on the side surface of the shaping sheet.

6. The sand dune leveling and shaping device for subgrade sand accumulation model test according to claim 1, characterized in that, A scale plate is arranged on the front of the card slot, and a horizontal scale is engraved on the scale plate.

7. A dune leveling and shaping device for subgrade sand accumulation model tests according to claim 6, characterized in that, A fixed cover plate is arranged at the back of the card slot, and the fixed cover plate is connected to the card slot by screws.

8. A dune leveling and shaping device for subgrade sand accumulation model tests according to claim 7, characterized in that, A limiting and fixing lock is arranged on one side of the card slot.

9. A dune leveling and shaping device for subgrade sand accumulation model tests according to claim 1, characterized in that, The support frame is a triangular truss structure, and a telescopic rod is arranged inside it; the pulleys are arranged at both ends of the bottom of the support frame.

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