Soil layer rapid sampling device for engineering geological survey

Abstract

The utility model belongs to the technical field of geological survey sampling, and particularly relates to a soil layer rapid sampling device for engineering geological survey, which is characterized in that power is transmitted from a large belt pulley to a small belt pulley at the lower end of a positioning shaft through a belt body on the outer side, so as to finish accelerated rotation; according to the device, a push rod is driven to rotate, so that the push rod pushes a protective cover and a drill rod body rotating at a high speed at the bottom to move downwards, soil at a specified deep level is drilled downwards in advance, a sampling pipe is prevented from being damaged by rock, and the protection effect of the device is further enhanced; a stepping motor at the top end of a movable frame is started, a motor shaft drives a driving shaft to rotate, and the driving shaft drives a connecting frame to rotate; then an electric telescopic rod in the L-shaped bracket is electrically started, the output end of the electric telescopic rod pushes a connecting rod, the connecting rod pushes a sampling pipe to extend out of the hollow outer rod, and a sampling opening in the bottom of the sampling pipe is exposed in soil, so that the soil can flow into the hollow outer rod, and deep sampling of different terrains is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of geological survey sampling, and in particular relates to a soil layer rapid sampling device for engineering geological survey. Background Art

[0002] Geological survey is carried out through a drilling rig and a sampling tube. The drilling rig sends the sampling tube below the ground. The soil will fill the inside of the sampling tube. The sampling tube is then taken out and the soil inside the tube is sampled. The soil structure deep underground can be clearly understood, which facilitates construction planning in the area.

[0003] After searching, the publication number: CN217111567U announced a sampling device for engineering geological survey. In the utility model, the column rod is driven to rotate by a motor, and the column rod can drive the cylinder to rotate. The bottom of the rotating rod is connected to a sampling tube body, thereby driving the sampling tube body to rotate, and the connecting seat is driven down by an electric push rod. The slider seat can slide on the inner wall of the slide frame, thereby driving the slide frame to descend, and the sampling tube body can be quickly rotated into the deep ground to sample the soil layer. When encountering a harder rock layer, the spring contracts and the slide frame and the second fixed seat move up as a whole, and then the electric push rod is automatically closed and the alarm is turned on for warning. Although this device has a certain alarm and protection effect, when sampling the soil under the deep rock layer, the device still cannot perform effective sampling, thereby reducing practicality.

[0004] Therefore, a soil layer rapid sampling device for engineering geological survey is designed to solve the above problems. Utility Model Content

[0005] To solve the problems raised in the above background technology. The utility model provides a soil layer rapid sampling device for engineering geological survey. When the device is in use, the support frame is placed at the sampling position. In order to avoid the deep soil being mixed with rocks, pre-drilling can be performed first during operation, and the motor body inside the protective cover is started. The output end drives the connecting shaft, and the connecting shaft drives the large starting belt pulley to rotate. The power is transmitted from the large belt pulley to the small belt pulley at the lower end of the positioning shaft through the outer belt body, thereby completing the speed increase rotation. At the same time, the hydraulic cylinder on the top of the support frame is started, and its piston end pushes the push rod, and the push rod pushes the protective cover and the high-speed rotating drill rod body at the bottom to move downward, so as to pre-drill the soil at a specified deep level, thereby preventing the rock from damaging the sampling tube, thereby enhancing the protection effect of the device.

[0006] After the drilling is completed, the hydraulic cylinder is reversed, and the push rod pulls the movable frame and the limit plate to make them rise smoothly along the outer wall of the linear axis, thereby lifting the drill rod body to the upper end of the drilling position, and then the stepper motor at the top of the movable frame is started, and its motor shaft drives the driving shaft to rotate, and the driving shaft drives the connecting frame to rotate, thereby swapping the position of the drill rod body with the hollow outer rod. Under the push of the hydraulic cylinder, the hollow outer rod reaches the drilling depth, and then the electric telescopic rod inside the L-shaped bracket is electrically started, and its output end pushes the connecting rod, and the connecting rod pushes the sampling tube to extend out of the hollow outer rod, and the sampling port at the bottom is exposed in the soil, so that the soil can flow into the interior, completing deep sampling of different terrains, thereby improving the practicality of the device; when taking out the tube, the sampling tube can be screwed out of the connecting rod, which is easy to operate.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rapid sampling device for soil layers in engineering geological survey, including a high-efficiency sampling mechanism, the high-efficiency sampling mechanism including a support frame, a hydraulic cylinder, a push rod, a movable frame, a stepper motor, a drive shaft, a connecting frame and a sampling assembly, the hydraulic cylinder is threadedly connected to the middle of the top end of the support frame, the push rod passes through the top inner wall of the support frame and is fixedly connected to the piston end of the hydraulic cylinder, the movable frame is fixedly connected to the bottom of the push rod, the motor shaft of the stepper motor is fixedly connected to the top of the drive shaft through a coupling, the connecting frame is fixedly connected to the bottom of the drive shaft, the sampling assembly is fixedly connected to one side of the connecting frame, and a drilling assembly is also provided on the side of the connecting frame away from the sampling assembly.

[0008] As a preferred embodiment of the utility model, a rapid sampling device for soil layers in engineering geological survey, the sampling assembly includes an L-shaped bracket, an electric telescopic rod, a connecting rod, a hollow outer rod and a sampling tube, the L-shaped bracket is fixedly connected to the bottom of the connecting rod, the output end of the electric telescopic rod is fixedly connected to the inner side of the connecting rod, the bottom of the connecting rod is threadedly connected to the top of the sampling tube, and the hollow outer rod is sleeved on the outside of the sampling tube.

[0009] As a preferred embodiment of the utility model as a rapid sampling device for engineering geological survey soil layers, the downhole assembly includes a protective cover, a motor body, a connecting shaft, a positioning shaft, a large belt pulley, a small belt pulley and a belt body, the output end of the motor body is fixedly connected to the surface of the connecting shaft through a coupling, the large belt pulley is fixedly connected to the bottom of the connecting shaft, the small belt pulley is fixedly connected to the outside of the positioning shaft, and the inner side of the belt body is tightly fitted with the outer wall surfaces of the large belt pulley and the small belt pulley, respectively.

[0010] As a preferred embodiment of the rapid soil sampling device for engineering geological survey of the utility model, linear axes are fixedly connected to both sides of the support frame.

[0011] As a preferred embodiment of the rapid soil sampling device for engineering geological survey of the utility model, a limit plate is also slidably sleeved on the outer side of the linear axis, and one side of the limit plate is fixedly connected to the surface of the movable frame.

[0012] As a preferred embodiment of the rapid soil layer sampling device for engineering geological survey of the utility model, a plurality of groups of sampling ports are provided at the bottom of the sampling tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the motor body inside the protective cover is started, and its output end drives the connecting shaft, which drives the starting large belt pulley to rotate, and the power is transmitted from the large belt pulley to the small belt pulley at the lower end of the positioning shaft through the outer belt body, thereby completing the speed-up rotation. At the same time, the hydraulic cylinder on the top of the support frame is started, and its piston end pushes the push rod, which pushes the protective cover and the high-speed rotating drill rod body at the bottom to move downward, so as to pre-drill the soil at a specified depth, thereby preventing the rock from damaging the sampling tube, thereby enhancing the protection effect of the device.

[0015] 2. In the utility model, the stepper motor at the top of the movable frame is started, and its motor shaft drives the driving shaft to rotate, and the driving shaft drives the connecting frame to rotate, so that the position of the drill rod body is swapped with the hollow outer rod. Under the push of the hydraulic cylinder, the hollow outer rod reaches the drilling depth, and then the electric telescopic rod inside the L-shaped bracket is electrically started, and its output end pushes the connecting rod, and the connecting rod pushes the sampling tube to extend out of the hollow outer rod, and the sampling port at the bottom is exposed in the soil, so that the soil can flow into the interior, completing deep sampling in different terrains, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a distribution diagram of the linear axis and the limit plate in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the propulsion effect diagram of the hydraulic cylinder in the utility model;

[0020] Figure 4 It is a cross-sectional view of the interior of the protective cover in the utility model;

[0021] Figure 5 It is a cross-sectional view of the interior of the L-shaped bracket and the hollow outer rod in the utility model;

[0022] In the figure:

[0023] 1. High-efficiency sampling mechanism; 11. Support frame; 12. Hydraulic cylinder; 13. Push rod; 14. Movable frame; 15. Stepper motor; 16. Drive shaft; 17. Connecting frame; 18. Sampling assembly; 181. L-shaped bracket; 182. Electric telescopic rod; 183. Connecting rod; 184. Hollow outer rod; 185. Sampling tube; 2. Drilling assembly; 21. Protective cover; 22. Motor body; 23. Connecting shaft; 24. Positioning shaft; 25. Large belt pulley; 26. Small belt pulley; 27. Belt body; 3. Linear axis; 4. Limiting plate; 5. Sampling port; 6. Drill rod body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 As shown:

[0026] A rapid soil sampling device for engineering geological survey is disclosed in CN217111567U. A motor drives a column rod to rotate, and the column rod can drive a cylinder body to rotate. A sample tube body is connected to the bottom of the rotating rod, thereby driving the sample tube body to rotate, and the connecting seat is driven down by the electric rod body. The slider seat can slide on the inner wall of the slide frame, thereby driving the slide frame to descend, and the sample tube body can be quickly rotated into the deep ground to sample the soil layer. When encountering a harder rock layer, the spring contracts and the slide frame and the second fixed seat move up as a whole, and then the electric rod is automatically closed and the alarm is turned on for warning. Although this device has a certain alarm and protection effect, when sampling the soil under the deep rock layer, the device still cannot perform effective sampling, thereby reducing practicality. On this basis, an efficient sampling mechanism 1 is added.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown:

[0028] In an optional embodiment: the efficient sampling mechanism 1 includes a support frame 11, a hydraulic cylinder 12, a push rod 13, a movable frame 14, a stepper motor 15, a drive shaft 16, a connecting frame 17 and a sampling assembly 18. The hydraulic cylinder 12 is threadedly connected to the middle of the top of the support frame 11, the push rod 13 passes through the top inner wall of the support frame 11 and is fixedly connected to the piston end of the hydraulic cylinder 12, the movable frame 14 is fixedly connected to the bottom of the push rod 13, the motor shaft of the stepper motor 15 is fixedly connected to the top of the drive shaft 16 through a coupling, the connecting frame 17 is fixedly connected to the bottom of the drive shaft 16, the sampling assembly 18 is fixedly connected to one side of the connecting frame 17, and the two sides of the support frame 11 are also fixedly connected with a linear shaft 3, and the outer side of the linear shaft 3 is also slidably sleeved with a limit plate 4, one side of the limit plate 4 is fixedly connected to the surface of the movable frame 14, and a plurality of sampling ports 5 are opened at the bottom of the sampling tube 185.

[0029] In this embodiment: the support frame 11 is placed at the sampling position. In order to avoid the deep soil from being mixed with rocks, pre-drilling can be carried out during operation. The motor body 22 inside the protective cover 21 is started, and its output end drives the connecting shaft 23. The connecting shaft 23 drives the large starting belt pulley 25 to rotate. The power is transmitted from the large belt pulley 25 to the small belt pulley 26 at the lower end of the positioning shaft 24 through the outer belt body 27, thereby completing the speed-up rotation. At the same time, the hydraulic cylinder 12 on the top of the support frame 11 is started, and its piston end pushes the push rod 13. The push rod 13 pushes the protective cover 21 and the high-speed rotating drill rod body 6 at the bottom to move downward, thereby pre-drilling the soil at a specified deep level, thereby preventing the rock from damaging the sampling tube 185, thereby enhancing the protection effect of the device.

[0030] More specifically:

[0031] like Figure 3 , Figure 4 and Figure 5 As shown:

[0032] In an optional embodiment: the sampling assembly 18 includes an L-shaped bracket 181, an electric telescopic rod 182, a connecting rod 183, a hollow outer rod 184 and a sampling tube 185, the L-shaped bracket 181 is fixedly connected to the bottom of the connecting rod 183, the output end of the electric telescopic rod 182 is fixedly connected to the inner side of the connecting rod 183, the bottom of the connecting rod 183 is screwed to the top of the sampling tube 185, and the hollow outer rod 184 is sleeved on the outside of the sampling tube 185. The drilling assembly 2 includes a protective cover 21, a motor body 22, a connecting shaft 23, a positioning shaft 24, a large belt pulley 25, a small belt pulley 26 and a belt body 27. The output end of the motor body 22 is fixedly connected to the surface of the connecting shaft 23 through a coupling, the large belt pulley 25 is fixedly connected to the bottom of the connecting shaft 23, the small belt pulley 26 is fixedly connected to the outside of the positioning shaft 24, and the inner side of the belt body 27 is tightly fitted with the outer wall surfaces of the large belt pulley 25 and the small belt pulley 26 respectively.

[0033] In this embodiment: after the drilling is completed, the hydraulic cylinder 12 is reversed and the push rod 13 pulls the movable frame 14 and the limit plate 4 to make them rise steadily along the outer wall of the linear axis 3, thereby lifting the drill rod body 6 to the upper end of the drilling position, and then the stepper motor 15 at the top of the movable frame 14 is started, and its motor shaft drives the driving shaft 16 to rotate, and the driving shaft 16 drives the connecting frame 17 to rotate, so that the position of the drill rod body 6 is swapped with the hollow outer rod 184. Under the push of the hydraulic cylinder 12, the hollow outer rod 184 reaches the depth of the drilling, and then the electric telescopic rod 182 inside the L-shaped bracket 181 is electrically started, and its output end pushes the connecting rod 183, and the connecting rod 183 pushes the sampling tube 185 to extend out of the hollow outer rod 184, and the sampling port 5 at the bottom is exposed in the soil, so that the soil can flow into the interior, completing deep sampling of different terrains, thereby improving the practicality of the device; when taking the tube, the sampling tube 185 can be screwed out of the connecting rod 183, which is easy to operate.

[0034] It should be noted that the drill rod body 6 and the hollow outer rod 184 are symmetrical along the central axis of the connecting frame 17. After the rotation is completed, the hollow outer rod 184 can be directly above the lower drill hole, thereby ensuring smooth sampling.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A soil layer rapid sampling device for engineering geological survey, comprising a high-efficiency sampling mechanism (1), characterized in that: The high-efficiency sampling mechanism (1) comprises a support frame (11), a hydraulic cylinder (12), a push rod (13), a movable frame (14), a stepping motor (15), a driving shaft (16), a connecting frame (17) and a sampling assembly (18); the hydraulic cylinder (12) is threadedly connected to the middle of the top end of the support frame (11); the push rod (13) passes through the top inner wall of the support frame (11) and is fixedly connected to the piston end of the hydraulic cylinder (12); the movable frame (14) is fixedly connected to the bottom of the push rod (13); the motor shaft of the stepping motor (15) is fixedly connected to the top of the driving shaft (16) through a coupling; the connecting frame (17) is fixedly connected to the bottom of the driving shaft (16); the sampling assembly (18) is fixedly connected to one side of the connecting frame (17); and a lower drilling assembly (2) is also provided on the side of the connecting frame (17) away from the sampling assembly (18).

2. The rapid sampling device for soil layers in engineering geological survey according to claim 1 is characterized in that: The sampling assembly (18) comprises an L-shaped bracket (181), an electric telescopic rod (182), a connecting rod (183), a hollow outer rod (184) and a sampling tube (185); the L-shaped bracket (181) is fixedly connected to the bottom of the connecting rod (183); the output end of the electric telescopic rod (182) is fixedly connected to the inner side of the connecting rod (183); the bottom of the connecting rod (183) is threadedly connected to the top of the sampling tube (185); and the hollow outer rod (184) is sleeved on the outside of the sampling tube (185).

3. The rapid sampling device for soil layer in engineering geological survey according to claim 1 is characterized in that: The drilling assembly (2) comprises a protective cover (21), a motor body (22), a connecting shaft (23), a positioning shaft (24), a large belt pulley (25), a small belt pulley (26) and a belt body (27); the output end of the motor body (22) is fixedly connected to the surface of the connecting shaft (23) through a coupling; the large belt pulley (25) is fixedly connected to the bottom of the connecting shaft (23); the small belt pulley (26) is fixedly connected to the outside of the positioning shaft (24); and the inner side of the belt body (27) is tightly fitted with the outer wall surfaces of the large belt pulley (25) and the small belt pulley (26), respectively.

4. The rapid sampling device for soil layers in engineering geological survey according to claim 1 is characterized in that: Linear shafts (3) are also fixedly connected to both sides of the support frame (11).

5. The rapid sampling device for soil layer in engineering geological survey according to claim 4 is characterized in that: A limit plate (4) is also slidably sleeved on the outer side of the linear shaft (3), and one side of the limit plate (4) is fixedly connected to the surface of the movable frame (14).

6. The rapid sampling device for soil layer in engineering geological survey according to claim 2 is characterized in that: The bottom of the sampling tube (185) is provided with a plurality of groups of sampling ports (5).

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