Coral sand shearing experiment device capable of preventing chippings from splashing

Abstract

The coral sand shearing experiment device comprises a cabinet body, the bottom end in the cabinet body is fixedly connected with a bottom plate, the interior of the bottom plate is connected with a transmission structure, the two sides of the bottom plate are symmetrically and rotatably connected with screw rods, the surfaces of the two screw rods are in threaded connection with a bearing plate and a top plate, the top plate is located above the bearing plate, and the top plate is located above the bearing plate. The screw rod is a double-thread screw rod, threads at the upper end and the lower end of the screw rod are opposite, the upper end of the bearing plate is fixedly connected with a plurality of U-shaped storage boxes, one side of each storage box is connected with a horizontal extrusion structure, the lower end of the top plate is fixedly connected with a connecting rod, and the lower end of the connecting rod is fixedly connected with a pressing plate. Compared with the prior art, the coral sand shear strength tester has the advantages that soil blocks can be prevented from splashing, and the shear strength of coral sand in different directions can be conveniently tested.

Description

Technical Field

[0001] The utility model relates to the technical field of shearing tests, in particular to a coral sand shearing test device capable of preventing debris from splashing. Background Art

[0002] The principle of the shear test is based on Coulomb's law. The internal friction of the soil is proportional to the normal pressure on the shear surface. The same soil is prepared into several soil samples. Under different normal pressures, horizontal shear force is directly applied along the fixed shear surface to obtain the shear stress at shear failure, which is the shear strength τf. Then, the shear strength indicators of the soil, the internal friction angle φ and the internal cohesion c, are determined according to the shear law.

[0003] When the shear test instrument in the prior art tests the shear strength, the soil block is sheared and broken, and a large internal stress will be released in a short time. Some small particles may be squeezed out and produce rock powder and dust. These rock particles can cause harm to people, and the dust can also cause certain pollution to the environment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a coral sand shearing test device that can prevent debris splashing, which can not only avoid soil splashing, but also facilitate testing the shearing strength of coral sand in different directions.

[0005] In order to solve the above problems, the technical solution of the utility model is: a coral sand shearing experimental device for preventing debris splashing, comprising a cabinet, a bottom plate, a transmission structure, a screw, a receiving plate, a top plate, a storage box, a horizontal extrusion structure, a connecting rod, and a pressing plate;

[0006] Preferably, the bottom end of the cabinet is fixedly connected to the bottom plate, the bottom plate is internally connected to the transmission structure, the bottom plate is symmetrically rotatably connected with screws on both sides, the two screw surfaces are threadedly connected to the receiving plate and the top plate, the top plate is located above the receiving plate, the screw is a double-headed screw, the upper and lower ends of the screw have opposite threads, the upper end of the receiving plate is fixedly connected to a storage box, the storage box is U-shaped, there are multiple storage boxes, one side of the storage box is connected to a horizontal extrusion structure, the lower end of the top plate is fixedly connected to a connecting rod, and the lower end of the connecting rod is fixedly connected to a pressure plate.

[0007] Furthermore, the transmission structure includes a motor, the motor is fixedly connected to one of the screw rods, the surfaces of the two screw rods are provided with pulleys, and the surfaces of the two pulleys are provided with belts.

[0008] Furthermore, the horizontal extrusion structure includes a support block, the upper end of which is fixedly connected to a mounting plate, one end of which is provided with an electric push rod, one end of which is provided with a push plate, and the push plate is located on one side of the storage box.

[0009] Furthermore, a telescopic plate is slidably provided at one end of the pressure plate, guide rods are provided on both sides of the inside of the pressure plate, the guide rods are plugged into the telescopic plate, a spring is sleeved on the surface of the guide rods, one end of the spring is fixedly connected to the telescopic plate, and the other end of the spring is fixedly connected to the inside of the pressure plate.

[0010] Furthermore, a cabinet door is provided at one end of the cabinet body, the cabinet door is provided with a transparent observation window, and a recycling box is provided at the bottom end of the interior of the cabinet body.

[0011] The advantages of the utility model compared with the existing technology are:

[0012] (1) The motor of the utility model drives two screws to rotate synchronously through the transmission structure, so that the pressure plate squeezes the coral sand in the storage box from the top, and the electric push rod can drive the push plate to move. By moving the push plate, the coral sand can be squeezed into the storage box to test the shear strength of the coral sand in different directions;

[0013] (2) The elastic potential energy of the spring of the utility model can make the telescopic plate close to the push plate, reducing the possibility of coral sand splashing outward during the shear test. The cabinet door can prevent the coral sand from splashing onto the cabinet body during the shearing process, and the splashed coral sand falls into the recycling box for recycling or disposal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereoscopic diagram of a coral sand shearing experimental device for preventing debris splashing of the utility model (without cabinet door).

[0015] Figure 2 The utility model is an overall stereogram of a coral sand shearing experimental device for preventing debris splashing.

[0016] Figure 3 The utility model discloses a transmission structure diagram of a coral sand shearing experimental device for preventing debris splashing.

[0017] Figure 4 The utility model is a diagram showing the internal structure of a pressure plate of a coral sand shearing experimental device for preventing debris splashing.

[0018] As shown in the figure: 1. Cabinet body; 2. Bottom plate; 3. Transmission structure; 4. Screw; 5. Adapter plate; 6. Top plate; 7. Storage box; 8. Horizontal extrusion structure; 9. Connecting rod; 10. Pressing plate; 11. Motor; 12. Pulley; 13. Belt; 14. Support block; 15. Mounting plate; 16. Electric push rod; 17. Push plate; 18. Telescopic plate; 19. Guide rod; 20. Spring; 21. Cabinet door; 22. Recycling box. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0020] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0022] like Figures 1 to 4 As shown, a debris-splashing-proof coral sand shearing test device comprises a cabinet 1, a cabinet door 21 is installed at one end of the cabinet 1, the cabinet door 21 can prevent coral sand from splashing out of the cabinet during the shearing process, a transparent observation window is installed on the cabinet door 21, and the shearing test is convenient for observing, and a recycling box 22 is installed at the bottom end of the cabinet 1, and the splashed coral sand falls into the recycling box 22 for easy recycling or treatment.

[0023] A base plate 2 is fixedly installed at the bottom end of the cabinet 1, and a transmission structure 3 is installed inside the base plate 2. Rotatable screws 4 are symmetrically installed on both sides of the base plate 2. The transmission structure 3 can control the synchronous rotation of the two screws 4. The transmission structure 3 includes a motor 11. The output end of the motor 11 is fixedly installed at the lower end of one of the screws 4. The motor 11 can drive one of the screws 4 to rotate. Pulleys 12 are mounted on the surfaces of the two screws 4. Belts 13 are installed on the surfaces of the two pulleys 12. The transmission of the pulleys 12 and the belts 13 can synchronously drive the other screw 4 to rotate.

[0024] The surfaces of the two screw rods 4 are threadedly connected with the receiving plate 5 and the top plate 6. The top plate 6 is located above the receiving plate 5. The screw rod 4 is a double-headed screw. The threads of the upper and lower ends of the screw rod 4 are opposite. When the two screw rods 4 rotate synchronously, the receiving plate 5 and the top plate 6 will move closer to or away from each other. A connecting rod 9 is fixedly installed at the lower end of the top plate 6. A pressing plate 10 is fixedly installed at the lower end of the connecting rod 9. The pressing plate 10 is located above the storage box 7. The pressing plate 10 squeezes the coral sand 7 in the storage box 7 from above to perform a shear test.

[0025] A storage box 7 is fixedly installed on the upper end of the receiving plate 5. The storage box 7 is U-shaped. There are multiple storage boxes 7. The storage box 7 is used to place coral sand that needs to be tested. A horizontal extrusion structure 8 is installed on one side of the storage box 7 for shearing test on the coral sand. The horizontal extrusion structure 8 includes a support block 14. The support block 14 is installed at one end of the receiving plate 5. A mounting plate 15 is fixedly installed on the upper end of the support block 14. An electric push rod 16 is installed at one end of the mounting plate 15. A push plate 17 is installed at one end of the electric push rod 16. The electric push rod 16 can drive the push plate 17 to move. The push plate 17 is located on one side of the storage box 7. By moving the push plate 17, the coral sand can be squeezed into the storage box 7 to perform a shear test.

[0026] A slidable telescopic plate 18 is installed at one end of the pressing plate 10, and guide rods 19 are installed on both sides of the inside of the pressing plate 10. The guide rods 19 are plugged into the telescopic plate 18, and a spring 20 is mounted on the surface of the guide rods 19. One end of the spring 20 is fixed to one end of the telescopic plate 18, and the other end of the spring 20 is fixed inside the pressing plate 10. When the pressing plate 10 moves toward the storage box 7, the electric push rod 16 moves the push plate 17 toward the storage box 7, and the push plate 17 squeezes the telescopic plate 18.

[0027] During specific use, the coral sand to be tested is put into the storage box 7, and the motor 11 is started. The motor 11 can drive one of the screws 4 to rotate, and the transmission of the pulley 12 and the belt 13 can synchronously drive the other screw 4 to rotate, thereby driving the receiving plate 5 and the top plate 6 to move closer to each other, and the pressing plate 10 squeezes the coral sand 7 in the storage box 7 from the top to perform a shear test; the electric push rod 16 can drive the push plate 17 to move, and the coral sand can be squeezed into the storage box 7 by moving the push plate 17 to perform a shear test. The push plate 17 squeezes the telescopic plate 18, and the telescopic plate 18 slides into the pressing plate 10 to prevent the pressing plate 10 from jamming the push plate 17. At the same time, the elastic potential energy of the spring 20 can make the telescopic plate 18 close to the push plate 17, reducing the possibility of coral sand splashing outward during the shear test. The cabinet door 21 can prevent the coral sand from splashing on the cabinet during the shearing process, and the splashed coral sand falls into the recycling box 22 for easy recycling or treatment.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A coral sand shearing test device to prevent debris splashing, characterized by: It comprises a cabinet body (1), a bottom plate (2), a transmission structure (3), a screw rod (4), a receiving plate (5), a top plate (6), a storage box (7), a horizontal extrusion structure (8), a connecting rod (9), and a pressing plate (10); The bottom end of the cabinet (1) is fixedly connected to a bottom plate (2), the bottom plate (2) is internally connected to a transmission structure (3), the bottom plate (2) is symmetrically rotatably connected to screw rods (4) on both sides, the surfaces of the two screw rods (4) are threadedly connected to a receiving plate (5) and a top plate (6), the top plate (6) is located above the receiving plate (5), the screw rod (4) is a double-headed screw rod, the threads of the upper and lower ends of the screw rod (4) are opposite, the upper end of the receiving plate (5) is fixedly connected to a storage box (7), the storage box (7) is U-shaped, there are multiple storage boxes (7), one side of the storage box (7) is connected to a horizontal extrusion structure (8), the lower end of the top plate (6) is fixedly connected to a connecting rod (9), and the lower end of the connecting rod (9) is fixedly connected to a pressure plate (10).

2. The coral sand shearing test device for preventing debris splashing according to claim 1, characterized in that: The transmission structure (3) comprises a motor (11), wherein the motor (11) is fixedly connected to one of the screw rods (4), the surfaces of the two screw rods (4) are provided with pulleys (12), and the surfaces of the two pulleys (12) are provided with belts (13).

3. The debris splash-proof coral sand shearing test device according to claim 1, characterized in that: The horizontal extrusion structure (8) comprises a support block (14), the upper end of the support block (14) is fixedly connected to a mounting plate (15), one end of the mounting plate (15) is provided with an electric push rod (16), one end of the electric push rod (16) is provided with a push plate (17), and the push plate (17) is located on one side of the storage box (7).

4. The coral sand shearing test device for preventing debris splashing according to claim 1, characterized in that: A telescopic plate (18) is slidably provided at one end of the pressure plate (10), and guide rods (19) are provided on both sides of the interior of the pressure plate (10). The guide rods (19) are plugged into the telescopic plate (18), and a spring (20) is sleeved on the surface of the guide rods (19), one end of the spring (20) is fixedly connected to the telescopic plate (18), and the other end of the spring (20) is fixedly connected to the interior of the pressure plate (10).

5. The coral sand shearing test device for preventing debris splashing according to claim 1, characterized in that: A cabinet door (21) is provided at one end of the cabinet body (1), and the cabinet door (21) is provided with a transparent observation window. A recycling box (22) is provided at the bottom end of the interior of the cabinet body (1).

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