Soil sampling device for civil engineering

Abstract

The invention discloses a civil engineering soil sampling device, and relates to the technical field of civil engineering soil sampling, the civil engineering soil sampling device comprises a base and a fixing plate, a mounting plate is arranged on symmetrically arranged first screw rods, a pile casing is arranged at the bottom of the mounting plate, a spiral drill bit is arranged at the bottom of the pile casing, and a driving device and a plurality of mounting frames are arranged in the pile casing; the driving device comprises a second servo motor and a second lead screw, the second lead screw is in threaded connection with a sleeve, a soil sampling groove is formed in the side wall of the protective cylinder, a fixing shaft is arranged on the mounting frame, a soil sampling cylinder is arranged at one end of a sleeve shaft, a connecting plate is arranged at the other end of the sleeve shaft, and one end of the connecting plate is hinged to the sleeve through a first connecting rod. The other end of the connecting plate is connected with a movable door through a second connecting rod, the movable door is installed in a movable groove in a limited mode, the pile casing is spirally pushed downwards, soil breaking resistance is reduced, and soil breaking efficiency is improved; the soil sampling barrel extends out of the movable groove to complete soil sampling and then is retracted into the movable groove, and the movable door is closed, so that synchronous sampling of rock and soil at different depths is realized, and mutual confusion is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of earth-taking in civil engineering, in particular to an earth-taking device for civil engineering. Background Art

[0002] Civil engineering is a general term for the science and technology of building various types of engineering facilities. It refers to the materials, equipment, survey, design, construction, maintenance and repair, as well as the objects of engineering construction. Civil engineering refers to the technical work of survey, planning, design, construction, installation and maintenance for the construction, reconstruction or expansion of various types of buildings, structures and related supporting facilities, in addition to house construction, and the completed engineering entities. Geotechnical sampling and detection devices are needed for geotechnical testing in civil engineering. Existing geotechnical sampling and detection devices need to use sampling cylinders when in use. The sampling cylinders are lowered into the rock and soil to sample the rock and soil. However, the sampling cylinders have low working efficiency and cannot accurately control the depth of the sampling cylinders. This will reduce the sampling quality of rock and soil at different depths, and it is inconvenient to sample rock and soil at different depths simultaneously, which can easily cause confusion during excavation.

[0003] A Chinese patent with the authorization announcement number CN108930261B discloses a rapid soil-taking device for civil engineering, including a mounting seat, a soil-taking trough is provided in the middle of the mounting seat, and the first support block and the second support block located at the top of the mounting seat are fixedly installed on both sides of the soil-taking trough, and the top of the first support block is fixedly installed with a support column, and a fixed box is provided above the support column, and the left side of the bottom of the fixed box is fixedly connected to the top of the support column, and the right side of the second support block is fixedly installed with a support rod, and the upper and lower ends of the support rod are respectively fixedly connected to the right side of the bottom of the fixed box and the top of the mounting seat. This technical solution drives the rotating disk to rotate the movable shaft and the worm gear through the rotation of the rocker, and the worm gear drives the threaded rod to rotate, which facilitates the downward spiral advancement of the threaded rod, which is beneficial for the staff to sample the local soil and improve work efficiency. However, it only has a single soil-taking function, and cannot achieve simultaneous sampling of different soil layer depths, which easily causes the mixing of soils from different soil layers, and cannot accurately analyze the distribution information of each layer of the rock and soil layer, and has limitations. Summary of the invention

[0004] In order to overcome the defects of the prior art that it only has a single soil sampling function, cannot achieve simultaneous sampling of different soil layer depths, easily causes mixing of soil from different soil layers, and cannot accurately analyze the distribution information of each layer of rock and soil, the present invention provides a soil sampling device for civil engineering.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a soil taking device for civil engineering, comprising a base and a fixed plate, the base and the fixed plate are connected and fixed by supporting legs, a symmetrically arranged first screw rod is rotatably connected between the base and the fixed plate, a mounting plate is arranged on the symmetrically arranged first screw rod, a casing is arranged at the bottom of the mounting plate, a spiral drill bit is arranged at the bottom of the casing, a soil taking hole matching the spiral drill bit is arranged on the base, a first servo motor is arranged at the top of the mounting plate, the first servo motor is connected to the casing via a connecting shaft, a driving gear is fixedly connected to the connecting shaft, and each first screw rod is threadedly connected to a driven gear meshing with the driving gear, A driving device and a plurality of mounting frames are provided in the casing, the driving device comprises a second servo motor arranged at the top of the casing, a second screw rod is provided at the output end of the second servo motor, a sleeve is threadedly connected to the second screw rod, a soil taking groove is provided on the side wall of the casing, a movable groove is provided on the inner wall of the casing, one end of each mounting frame is fixed to the inner wall of the casing, a fixed shaft is provided at the other end of the mounting frame, a sleeve shaft is sleeved on the fixed shaft, a soil taking barrel is provided at one end of the sleeve shaft, a connecting plate is provided at the other end of the sleeve shaft, one end of the connecting plate is hinged to the sleeve through a first connecting rod, the other end of the connecting plate is connected to a movable door through a second connecting rod, and the movable door limit is installed in the movable groove.

[0006] As a further improvement of the present invention, scale lines are provided on the supporting legs.

[0007] As a further improvement of the present invention, a polyurethane coating is provided on the inner wall of the soil collecting tube.

[0008] As a further improvement of the present invention, the first connecting rod and the second connecting rod form a V-shaped structure with the connecting plate as the center.

[0009] As a further improvement of the present invention, the diameter of the soil hole is larger than the diameter of the spiral drill bit and the casing.

[0010] As a further improvement of the present invention, the diameter of the soil-boring trough is greater than the diameter of the soil-boring barrel.

[0011] As a further improvement of the present invention, a spiral groove is provided on the fixed shaft, and the sleeve shaft is installed on the spiral groove through a fixed column.

[0012] As a further improvement of the present invention, a spiral cutter is provided inside the soil collecting tube.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Through the cooperation among the first screw rod, the mounting plate, the casing, the soil taking groove, the movable groove, the spiral drill bit, the first servo motor, the connecting shaft, the driving gear and the driven gear, the casing can be pushed down spirally, thereby reducing the soil breaking resistance and improving the soil breaking efficiency;

[0015] 2. Through the cooperation among the soil sampling trough, the movable trough, the second servo motor, the mounting frame, the second screw rod, the fixed shaft, the sleeve, the connecting plate, the sleeve shaft, the fixed column, the soil sampling barrel and the movable door, the movable door can be opened when soil is sampled, and the soil sampling barrel can be extended out of the movable trough to complete soil sampling and then retracted into the movable trough and the movable door can be closed, thereby realizing synchronous sampling of rock and soil at different depths and avoiding confusion with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 The present invention is a schematic structural diagram of a soil taking device for civil engineering.

[0018] Figure 2 It is a structural schematic diagram of the mounting plate of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the casing of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the mounting frame of the present invention.

[0021] Figure 5 It is a schematic structural diagram of the fixed shaft of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the soil taking barrel of the present invention.

[0023] In the figure: 1, base; 11, supporting leg; 111, scale line; 12, fixing plate; 13, soil hole; 2, driving device; 21, first screw rod; 22, mounting plate; 23, casing; 231, spiral drill bit; 232, movable groove; 233, soil groove; 24, first servo motor; 241, connecting shaft; 25, driving gear; 26, driven gear; 31, second servo motor; 32, second screw rod; 33, mounting frame; 331, fixed shaft; 332, spiral groove; 34, sleeve; 341, first connecting rod; 35, connecting plate; 351, second connecting rod; 36, sleeve shaft; 361, fixing column; 37, soil barrel; 371, polyurethane coating; 38, movable door. DETAILED DESCRIPTION

[0024] In order to make the technical solution and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0025] Reference Figures 1 to 6The embodiment of the present invention discloses a soil taking device for civil engineering, including a base 1 and a fixed plate 12, the base 1 and the fixed plate 12 are connected and fixed by supporting legs 11, a symmetrically arranged first screw rod 21 is rotatably connected between the base 1 and the fixed plate 12, a mounting plate 22 is arranged on the symmetrically arranged first screw rod 21, a casing 23 is arranged at the bottom of the mounting plate 22, a spiral drill bit 231 is arranged at the bottom of the casing 23, a soil taking hole 13 matching the spiral drill bit 231 is arranged on the base 1, a first servo motor 24 is arranged on the top of the mounting plate 22, the first servo motor 24 is connected to the casing 23 through a connecting shaft 241, a driving gear 25 is fixedly connected to the connecting shaft 241, a driven gear 26 meshing with the driving gear 25 is threadedly connected to each first screw rod 21, and a driving device 2 is arranged in the casing 23. and a plurality of mounting frames 33, the driving device 2 includes a second servo motor 31 arranged at the top of the casing 23, a second screw rod 32 is provided at the output end of the second servo motor 31, a sleeve 34 is threadedly connected to the second screw rod 32, a soil taking groove 233 is opened on the side wall of the casing 23, a movable groove 232 is provided on the inner wall of the casing 23, one end of each mounting frame 33 is fixed to the inner wall of the casing 23, a fixed shaft 331 is provided at the other end of the mounting frame 33, a sleeve 36 is sleeved on the fixed shaft 331, a soil taking barrel 37 is provided at one end of the sleeve 36, a connecting plate 35 is provided at the other end of the sleeve 36, one end of the connecting plate 35 is hinged to the sleeve 34 through a first connecting rod 341, the other end of the connecting plate 35 is connected to a movable door 38 through a second connecting rod 351, and the movable door 38 is limitedly installed in the movable groove 232.

[0026] A supporting leg 11 is fixedly connected to the upper end of the base 1, and a fixing plate 12 is fixedly connected to the upper end of the supporting leg 11. A first screw rod 21 is rotatably connected between the base 1 and the fixing plate 12. A mounting plate 22 is provided on the first screw rod 21, and a casing 23 is provided at the lower end of the mounting plate 22. A spiral drill bit 231 is fixedly connected to the lower end of the casing 23. A soil taking hole 13 is opened in the center of the base 1, and the soil taking hole 13 is located directly below the spiral drill bit 231. A first servo motor 24 is fixedly connected to the upper end of the mounting plate 22, and a connecting shaft 241 is fixedly connected to the output end of the first servo motor 24. The lower end of the connecting shaft 241 is fixedly connected to the top end of the casing 23, and a driving gear 25 is fixedly connected to the connecting shaft 241. A driven gear 26 is fixedly connected to the first screw rod 21, and the driven gear 26 is meshed and linked with the driving gear 25.

[0027] The casing 23 is provided with a driving device 2 and a mounting frame 33. The driving device 2 includes a second servo motor 31. The second servo motor 31 is fixedly connected to the inner wall of the upper end of the casing 23. The output end of the second servo motor 31 is fixedly connected to the second screw rod 32. The second screw rod 32 is threadedly connected to the sleeve 34. The mounting frame 33 is fixedly connected to the side wall of the casing 23. One end of the mounting frame 33 is fixed to the inner wall of the casing 23. The other end of the mounting frame 33 is provided with a fixed shaft 331. The fixed shaft 331 is sleeved with a sleeve shaft 36. One end of the sleeve shaft 36 is provided with a soil taking barrel 37. The other end of the sleeve shaft 36 is provided with a connecting plate 35. One end of the connecting plate 35 is hinged to the sleeve 34 through a first connecting rod 341. The other end of the connecting plate 35 is connected to the movable door 38 through a second connecting rod 351. The other end of the sleeve shaft 36 is provided with a connecting plate 35. The first connecting rod 341 and the second connecting rod 351 form a V-shaped structure with the connecting plate 35 as the center.

[0028] There are two first screw rods 21 and two driven gears 27, which are symmetrically arranged with the first servo motor 24 as the center. When the first servo motor 24 is working, it drives the driving gear 25 to rotate, and at the same time drives the driven gears 26 on both sides to rotate, thereby driving the two first screw rods 21 to rotate, and finally drives the mounting plate 22 to move up and down. The two first screw rods 21 improve the stability of the mounting plate 22 when it moves up and down, and at the same time drive the casing 23 and the spiral drill bit 231 to rotate through the connecting shaft 241, so that the casing 23 is spirally pushed down to drill into the soil for sampling, thereby reducing the resistance to breaking the soil.

[0029] A movable groove 232 is provided on the inner wall of the casing 23, and a soil collecting groove 233 is provided on the outer side of the casing 23. A movable door 38 is slidably connected in the movable groove 232. The soil collecting groove 233 is located on the outer side of the soil collecting tube 37. In the initial state, the movable door 38 seals the soil collecting groove 233. A second connecting rod 351 is rotatably connected between the movable door 38 and the connecting plate 35. The second connecting rod 351 is set to be tilted upward. The second connecting rod 351 and the soil collecting tube 37 do not interfere with each other. When the second servo motor 31 is working, it drives the second screw rod 32 to rotate, thereby driving the sleeve 34 connected to the second screw rod 32 to move downward, thereby pressing the first connecting rod 341, thereby pushing the connecting plate 35 forward, and the sleeve shaft 36 slides along the fixed shaft 331, thereby the connecting plate moves forward, thereby driving the soil collecting tube 37 to move forward. 7 moves forward. During this process, the connecting plate 35 moves forward to push the second screw rod 32 to move, driving the movable door 38 to move up along the movable groove 232, thereby exposing the soil sampling groove 233. The soil sampling barrel 37 moves forward in a spiral to pass through the soil sampling groove 233 to break the soil and take samples. After the sampling is completed, the second servo motor 31 reverses, and the above process is reversed. After taking the soil, the soil sampling barrel 37 is retracted into the casing 23, and the movable door 38 moves down and closes the casing 23 to prevent the soil samples of different soil layers from being mixed, thereby improving the accuracy of soil sampling detection.

[0030] A polyurethane coating 371 is provided inside the soil collecting barrel 37. The polyurethane coating 371 can increase the friction with the soil inside the barrel when the soil collecting barrel 37 is recovered, thereby preventing the soil inside the barrel from falling off.

[0031] There are multiple soil sampling troughs 233 arranged in an array, and there are multiple mounting frames 33, fixed shafts 331, sleeves 34, connecting plates 35, sleeve shafts 36, and soil sampling tubes 37 arranged in an array, and the number corresponds to the soil sampling troughs 233, so as to sample soil layers at different depths in layers and improve the accuracy of the test results.

[0032] Two support legs 11 are provided and are symmetrically arranged with the first servo motor 5 as the center. A scale line 111 is provided on the support leg 11, so that the descending depth of the casing 23 can be visually observed, which is convenient for controlling the soil extraction depth.

[0033] The diameter of the soil hole 13 is larger than the diameter of the spiral drill bit 231 and the casing 23. The diameter of the spiral drill bit 231 is larger than the diameter of the casing 23, so no interference will be caused during the descent process. The diameter of the soil trough 233 is larger than the soil tube, so no interference will be caused during the soil taking process.

[0034] Example 2

[0035] The difference between this embodiment and the first embodiment is that a spiral groove 332 is provided on the fixed shaft 331, and the sleeve shaft 36 is installed on the spiral groove 332 through a fixed column 361. When the connecting plate 35 moves, the fixed column 361 on the sleeve shaft 36 is driven to slide along the spiral groove 332, so that the sleeve shaft 36 moves forward with the spiral rotation of the connecting plate 35, and then drives the soil sampling barrel 37 to move forward in a spiral manner, thereby improving the soil sampling efficiency. A spiral cutter is provided inside the soil sampling barrel 37 to further improve the sampling efficiency.

[0036] It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A soil taking device for civil engineering, characterized in that: The invention comprises a base (1) and a fixing plate (12), wherein the base (1) and the fixing plate (12) are connected and fixed via a supporting leg (11), a symmetrically arranged first screw rod (21) is rotatably connected between the base (1) and the fixing plate (12), a mounting plate (22) is arranged on the symmetrically arranged first screw rod (21), a casing (23) is arranged at the bottom of the mounting plate (22), a spiral drill head (231) is arranged at the bottom of the casing (23), and a matching spiral drill head (231) is arranged on the base (1). The soil taking hole (13) of the head (231) is provided, a first servo motor (24) is provided on the top of the mounting plate (22), the first servo motor (24) is connected to the casing (23) through a connecting shaft (241), a driving gear (25) is fixedly connected to the connecting shaft (241), each first screw rod (21) is threadedly connected to a driven gear (26) meshing with the driving gear (25), a driving device (2) and a plurality of mounting frames (33) are provided in the casing (23), and the driving gear (25) is fixedly connected to the connecting shaft (241). The actuator (2) comprises a second servo motor (31) arranged at the top of the casing (23), a second screw rod (32) is arranged at the output end of the second servo motor (31), a sleeve (34) is threadedly connected to the second screw rod (32), a soil taking groove (233) is opened on the side wall of the casing (23), a movable groove (232) is arranged on the inner wall of the casing (23), one end of each mounting bracket (33) is fixed on the inner wall of the casing (23), and the mounting bracket (33) is fixed on the inner wall of the casing (23). A fixed shaft (331) is provided at one end, a sleeve shaft (36) is sleeved on the fixed shaft (331), a soil taking cylinder (37) is provided at one end of the sleeve shaft (36), a connecting plate (35) is provided at the other end of the sleeve shaft (36), one end of the connecting plate (35) is hingedly connected to the sleeve (34) through a first connecting rod (341), and the other end of the connecting plate (35) is connected to a movable door (38) through a second connecting rod (351), and the movable door (38) is limitedly installed in the movable groove (232).

2. The earth-taking device for civil engineering according to claim 1, characterized in that: The supporting leg (11) is provided with a scale mark (111).

3. The earth-taking device for civil engineering according to claim 2, characterized in that: The inner wall of the soil collecting tube (37) is provided with a polyurethane coating (371).

4. The earth-taking device for civil engineering according to claim 3, characterized in that: The first connecting rod (341) and the second connecting rod (351) form a V-shaped structure with the connecting plate (35) as the center.

5. The earth-taking device for civil engineering according to claim 4, characterized in that: The diameter of the soil-boring hole (13) is larger than the diameters of the spiral drill bit (231) and the casing (23).

6. The earth-taking device for civil engineering according to claim 5, characterized in that: The diameter of the soil-boring trough (233) is greater than the diameter of the soil-boring cylinder (37).

7. The earth-taking device for civil engineering according to claim 6, characterized in that: A spiral groove (332) is provided on the fixed shaft (331), and the sleeve shaft (36) is mounted on the spiral groove (332) via a fixed column (361).

8. The earth-taking device for civil engineering according to claim 7, characterized in that: The interior of the soil taking tube (37) is provided with a spiral cutter.

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