Rock soil sampling device in civil engineering

Abstract

The utility model discloses a rock soil sampling device in civil engineering, and mainly relates to the technical field of sampling devices. Comprising a base, a stand column, a lifting mechanism and a sliding seat, the lifting mechanism comprises a first belt wheel, a second belt wheel and a belt, the first belt wheel and the second belt wheel are rotationally arranged at the upper end and the lower end of the stand column respectively, and the first belt wheel and the second belt wheel are sleeved with the belt. The end of the shifting tooth makes contact with the belt, a reset spring is arranged between the shifting tooth and the first belt wheel, and the belt tightening wheel is arranged on the stand column in a sliding mode and makes contact with the inner side of the belt. The utility model has the beneficial effects that the problem that the transmission ratio between the sliding seat and the belt wheel cannot be changed is solved, and the sampling efficiency and accuracy of the rock sampling drilling machine are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a rock and soil sampling device in civil engineering. Background Art

[0002] Geotechnical investigation refers to the activities of identifying, analyzing and evaluating the geological, environmental characteristics and geotechnical conditions of the construction site according to the requirements of the construction project. Geotechnical sampling is the use of certain technical means to obtain geotechnical samples that meet various specific quality requirements during the on-site exploration process.

[0003] At present, sampling drills are generally used for rock and soil sampling. The commonly used sampling drills in the prior art include a base, a column, a slide, a gasoline engine, a gearbox, and a drill rod. The column is fixed on the base, and a belt lifting mechanism is provided on the column. The slide is slidably arranged on the column and connected to the belt in the belt lifting mechanism. The gasoline engine and the gearbox are installed on the slide, and the drill rod is coaxially connected to the output shaft of the gearbox. The bracket is fixedly connected to the column. The belt lifting mechanism includes two pulleys rotatably arranged at the upper and lower ends of the column, a belt sleeved outside the two pulleys, and a handle coaxially connected to a pulley located at the upper end of the column. When the slide needs to be lifted and lowered, it can be achieved by rotating the handle in the belt lifting mechanism.

[0004] However, during its use, since the transmission ratio between the slide and the pulley always remains consistent, when encountering soft soil, the drill bit cannot be pressed down quickly. When encountering hard stone, it is difficult to turn the handle, and the depth of pressure cannot be accurately controlled. This has affected the sampling efficiency and accuracy of the rock sampling drill rig. Utility Model Content

[0005] The utility model aims to provide a rock and soil sampling device in civil engineering, solve the problem that the transmission ratio between the slide seat and the pulley cannot be changed, and improve the sampling efficiency and accuracy of the rock sampling drill.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A rock and soil sampling device in civil engineering includes a base, a column, a lifting mechanism and a slide seat, the lifting mechanism includes a first pulley and a second pulley which are rotatably arranged at the upper and lower ends of the column respectively, and a belt which is sleeved outside the first pulley and the second pulley, the slide seat is slidably arranged on one side of the column and connected to the belt, a plurality of shifting teeth are radially slidably connected to the first pulley, the ends of the shifting teeth are in contact with the belt, a return spring is provided between the shifting teeth and the first pulley, and also includes a tightening pulley which is slidably arranged on the column and in contact with the inner side of the belt.

[0008] Furthermore, a plurality of grooves are provided on the inner side of the belt, an arc block is provided at the end of the shifting tooth, and a plurality of protrusions in contact with the grooves are provided on the side of the arc block.

[0009] Furthermore, the spacing between adjacent grooves is equal to the spacing between adjacent protrusions.

[0010] Furthermore, a slide groove is radially provided on the first pulley, a first slider slidably connected to the slide groove is provided at the end of the shift tooth, the return spring is arranged between the first slider and the first pulley, and turntables are respectively provided on both sides of the first pulley for driving several first sliders to slide simultaneously in the slide groove.

[0011] Furthermore, the turntable is rotatably connected to the first pulley, a guide column is provided on one side of the first sliding block, and an arc groove that is in sliding contact with the guide column is provided on the first pulley turntable.

[0012] Furthermore, a rotating shaft is provided at one end of the first pulley, and the rotating shaft passes through the turntable and the column and extends to the outside. A through hole is provided at the end of the rotating shaft, and a lever passing through the through hole to drive the rotating shaft to rotate is also included.

[0013] Furthermore, two second sliders are slidably connected to the column, the tension pulley is rotatably arranged between the two second sliders, and a clamping spring is arranged between the second slider and the column.

[0014] Furthermore, it also includes guide blocks arranged on both sides of the belt, one side of the two guide blocks respectively contacts the two sides of the belt, one side of one guide block is flush with one side of the slide seat, and one side of the other guide block is tangent to the side of the second pulley.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. When sampling, the belt is in a tight state through the guidance of the first pulley, the second pulley and the tightening pulley. Then the first pulley is rotated on the column, and the ends of several shifting teeth contact the belt. The friction generated after the contact drives the belt to move, thereby driving the slide seat set on the belt to press down or lift up, and cooperate with the drill rod to realize the sampling of the sampling drill;

[0017] 2. When the drill rod encounters soft soil, the resistance preventing the drill rod from continuing to press down will become smaller, and the pressure applied to the shifting teeth through the slide seat and the belt will be reduced. Under the action of the return spring rebound force, the driving shifting teeth will slide outward, increasing the diameter of the outer circle formed by the combination of several shifting tooth ends, so that the first pulley will drive a longer belt to move when the first pulley rotates one circle, accelerating the speed of the slide seat pressing down;

[0018] When the drill rod encounters hard rock, the resistance preventing the drill rod from continuing to be pressed down will become larger, and the pressure applied to the shifting teeth through the slide and the belt will increase, driving the shifting teeth to move inward, further compressing the return spring between the shifting teeth and the first pulley, reducing the diameter of the outer circle formed by the combination of the ends of several shifting teeth, so that the first pulley rotates one circle, driving the shorter belt to move, slowing down the speed of the slide pressing down, and better controlling the height of the drill rod pressing down; thereby effectively changing the transmission ratio between the slide and the first pulley, and improving the sampling efficiency and accuracy of the rock sampling drill;

[0019] 3. When the shifting tooth slides on the first pulley, the tension pulley slides on the column, so that its side contacts the belt, driving the belt to move together until the belt returns to a taut state. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 It is a structural schematic diagram of the utility model column.

[0021] Attached Figure 2 It is a structural schematic diagram of the first pulley of the utility model.

[0022] Attached Figure 3 It is a structural schematic diagram of the gear shifting device of the utility model.

[0023] Attached Figure 4 It is a structural schematic diagram of a turntable of the utility model.

[0024] Attached Figure 5 This utility model is attached Figure 1 A partial enlarged view of area A in the middle.

[0025] Attached Figure 6 It is a structural schematic diagram of the guide block of the utility model.

[0026] Numbers shown in the accompanying drawings:

[0027] 1. Base; 2. Column; 3. Lifting mechanism; 4. Slide; 5. First pulley; 6. Second pulley; 7. Belt; 8. Shifting tooth; 9. Return spring; 10. Tension pulley; 11. Groove; 12. Arc block; 13. Protrusion; 14. Slide groove; 15. First slider; 16. Turntable; 17. Guide column; 18. Arc groove; 19. Rotating shaft; 20. Through hole; 21. Shifting rod; 22. Second slider; 23. Clamping spring; 24. Guide block. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0029] A rock and soil sampling device in civil engineering, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a base 1, a column 2, a lifting mechanism 3 and a slide 4. The base 1 is fixed near the sampling area, and the column 2 and the slide 4 are fixed on the rock formation. Specifically, a gasoline engine and a drill rod are arranged on the slide 4. The output shaft of the gearbox is connected to the gasoline engine and the drill rod respectively. The gasoline engine provides output power for the rotation of the drill rod, and cooperates with the gearbox to control the steering and rotation speed of the drill rod, so as to drive the drill rod to drill a certain depth in the surface soil and rock formation to take soil samples; the lifting mechanism 3 includes a first pulley 5 and a second pulley 6 respectively arranged at the upper and lower ends of the column 2, and a first pulley 5 and a second pulley 6 sleeved on the first pulley 5 and the second pulley 6. The slide 4 is slidably arranged on one side of the column 2 and connected to the belt 7. A plurality of shifting teeth 8 are radially slidably connected to the first pulley 5. The ends of the shifting teeth 8 are in contact with the belt 7. When the first pulley 5 is driven to rotate on the column 2, the ends of the plurality of shifting teeth 8 are in contact with the belt 7. The friction force generated after the contact drives the belt 7 sleeved on the outside of the first pulley 5 and the second pulley 6 to move, thereby driving the slide 4 arranged on the belt 7 to be pressed downward or lifted upward, and the sampling of the sampling drill is realized in cooperation with the drill rod; a return spring 9 is provided between the shifting teeth 8 and the first pulley 5, and a return spring 9 is also provided. It includes a tightening pulley 10 which is slidably arranged on the column 2 and contacts the inner side of the belt 7. When the drill rod encounters soft soil, the resistance preventing the drill rod from continuing to be pressed down will become smaller, and the pressure applied to the shifting tooth 8 by the slide seat 4 and the belt 7 will be reduced. Under the action of the rebound force of the reset spring 9, the shifting tooth 8 is driven to slide outward, and the diameter of the outer circle formed by the combination of the ends of several shifting teeth 8 is increased, so that the first pulley 5 can drive the longer belt 7 to move with the same rotation, thereby accelerating the downward pressing rate of the slide seat 4; when the drill rod encounters hard rock, the resistance preventing the drill rod from continuing to be pressed down will become larger, and the pressure applied to the shifting tooth 8 by the slide seat 4 and the belt 7 will be reduced. The pressure of the shifting tooth 8 will increase, driving the shifting tooth 8 to move inward, further compressing the return spring 9 between the shifting tooth 8 and the first pulley 5, reducing the diameter of the outer circle formed by the combination of the ends of several shifting teeth 8, so that the first pulley 5 rotates one circle, driving the shorter belt 7 to move, slowing down the speed at which the slide 4 is pressed down, and better controlling the height at which the drill rod is pressed down; thereby effectively changing the transmission ratio between the slide 4 and the first pulley 5, and improving the sampling efficiency and accuracy of the rock sampling drill. In addition, the tightening pulley 10 slides on the column 2 until its side contacts the belt 7, ensuring that the belt 7 is always in a taut state.

[0030] Preferably, Figure 3 As shown, a plurality of grooves 11 are provided on the inner side of the belt 7, and an arc block 12 is provided at the end of the shifting tooth 8 to increase the contact area between the shifting tooth 8 and the belt 7 and better drive the belt 7 to move. A plurality of protrusions 13 in contact with the grooves 11 are provided on the side of the arc block 12. When the protrusion 13 provided at the end of the shifting tooth 8 enters the groove 11, the protrusion 13 contacts the groove 11 on both sides to increase the relative sliding resistance between the shifting tooth 8 and the belt 7, so that the first pulley 5 can better drive the belt 7 to move, thereby improving the sampling efficiency and accuracy of the rock sampling drill.

[0031] Preferably, Figure 3 As shown, the spacing between adjacent grooves 11 and the spacing between adjacent protrusions 13 are equal, so that several protrusions 13 on the arc block 12 are in contact with the grooves 11 at the same time, further increasing the relative sliding resistance between the shifting teeth 8 and the belt 7, and improving the sampling efficiency and accuracy of the rock sampling drill.

[0032] Preferably, Figure 3 and Figure 4 As shown, a slide groove 14 is radially provided on the first pulley 5, and a first slider 15 slidably connected to the slide groove 14 is provided at the end of the shifting tooth 8. The return spring 9 is arranged between the first slider 15 and the first pulley 5, and guides the sliding of the shifting tooth 8 on the first pulley 5, so as to prevent the shifting tooth 8 from deviating from the specified direction and affecting the normal shifting of the belt 7, thereby improving the stability of the operation of the overall structure. Turntables 16 for driving a plurality of first sliders 15 to slide in the slide groove 14 at the same time are respectively provided on both sides of the first pulley 5, so that a plurality of shifting teeth 8 slide on the first pulley 5 at the same time, so that the distances from each shifting tooth 8 to the center of the first pulley 5 are kept consistent, ensuring that the end portions of the shifting teeth 8 form a full circle, so that the protrusion 13 provided at the end of the next shifting tooth 8 can contact the corresponding groove 11 on the belt 7, so as to prevent the protrusion 13 from frequently moving and interfering with the belt 7, causing the belt 7 to be worn and affecting the service life of the belt 7.

[0033] Preferably, Figure 3 and Figure 4 As shown, the turntable 16 is rotatably connected to the first pulley 5, a guide column 17 is provided on one side of the first slider 15, and an arc groove 18 is provided on the turntable 16 of the first pulley 5, which is in sliding contact with the guide column 17. When one of the shifting teeth 8 is subjected to pressure and changes its position, it drives the end thereof to slide on the first pulley 5, and makes the guide column 17 contact with the arc groove 18. The component force generated drives the turntable 16 to rotate on both sides of the first pulley 5, and contacts with the remaining guide columns 17 through other arc grooves 18 on the turntable 16, driving the remaining shifting teeth 8 to slide on the first pulley 5 until the whole returns to balance.

[0034] Preferably, Figure 5 As shown, a rotating shaft 19 is provided at one end of the first pulley 5, and the rotating shaft 19 extends to the outside after passing through the turntable 16 and the column 2 respectively. A through hole 20 is provided at the end of the rotating shaft 19, and also includes a lever 21 that passes through the through hole 20 to drive the rotating shaft 19 to rotate. By rotating the lever 21 on the column 2, a component force is generated after the lever 21 contacts the through hole 20, driving the rotating shaft 19 to rotate on the column 2, driving the first pulley 5 to rotate on the column 2, and driving the slide 4 to press down or lift, thereby realizing rock and soil sampling of the sampling drill.

[0035] Preferably, Figure 6 As shown, two second sliders 22 are slidably connected to the column 2, and the tension wheel 10 is rotatably set between the two second sliders 22, which guides the tension wheel 10 to prevent it from getting off the track and affecting the stability of the overall structure; a clamping spring 23 is provided between the second slider 22 and the column 2, and the rebound force generated by the compression of the clamping spring 23 drives the second slider 22 to slide on the column 2 until the tension wheel 10 on the second slider 22 contacts the belt 7, so that the belt 7 is always in a taut state.

[0036] Preferably, Figure 2 and Figure 4 As shown, it also includes guide blocks 24 arranged on both sides of the belt 7, one side of the two guide blocks 24 is in contact with both sides of the belt 7 respectively, one side of one guide block 24 is flush with one side of the slide 4, and one side of the other guide block 24 is tangent to the side surface of the second pulley 6, so that the belt 7 between the guide blocks 24 and the second pulley 6 is in a vertical state, so that the drill rod sampling process is in a vertical downward pressure state, thereby improving the sampling accuracy of the rock sampling drill rig.

[0037] Example 1

[0038] The utility model provides a rock and soil sampling device in civil engineering, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a base 1, a column 2, a lifting mechanism 3 and a slide 4. The base 1 is fixed near the sampling area, and the column 2 and the slide 4 are fixed on the rock formation. A gasoline engine and a drill rod are arranged on the slide 4. The output shaft of the gearbox is connected to the gasoline engine and the drill rod respectively. The gasoline engine provides output power for the rotation of the drill rod, and cooperates with the gearbox to control the direction and speed of the drill rod, so as to drive the drill rod to drill a certain depth in the surface soil and rock formation to take soil samples.

[0039] When sampling, the belt 7 is in a tight state through the guidance of the first pulley 5, the second pulley 6, and the tightening pulley 10. Then the first pulley 5 is rotated on the column 2, and the ends of the plurality of shifting teeth 8 contact the belt 7. The friction force generated after the contact drives the belt 7 to move, thereby driving the slide 4 set on the belt 7 to press down or lift up, and the sampling of the sampling drill is realized in cooperation with the drill rod;

[0040] When the drill rod encounters soft soil, the resistance preventing the drill rod from continuing to be pressed down will become smaller, the pressure applied to the shifting tooth 8 by the slide seat 4 and the belt 7 will be reduced, and under the action of the rebound force of the return spring 9, the drive shifting tooth 8 will slide outward, and the diameter of the outer circle formed by the combination of the ends of the plurality of shifting teeth 8 will be increased, so that the first pulley 5 will be rotated once, and the longer belt 7 will be driven to move, thereby accelerating the speed at which the slide seat 4 presses down; when the drill rod encounters hard rock, the resistance preventing the drill rod from continuing to be pressed down will become larger, and the pressure applied to the shifting tooth 8 by the slide seat 4 and the belt 7 will be increased, so that the drive shifting tooth 8 will be moved inward, further compressing the return spring 9 between the shifting tooth 8 and the first pulley 5, reducing the diameter of the outer circle formed by the combination of the ends of the plurality of shifting teeth 8, so that the first pulley 5 will be rotated once, and the shorter belt 7 will be driven to move, thereby slowing down the speed at which the slide seat 4 presses down, thereby better controlling the height at which the drill rod is pressed down; thereby effectively changing the transmission ratio between the slide seat 4 and the first pulley 5, thereby improving the sampling efficiency and accuracy of the rock sampling drill;

[0041] In addition, when the shifting tooth 8 slides on the first pulley 5, the tensioning pulley 10 slides on the column 2, so that its side surface contacts the belt 7, driving the belt 7 to move together until the belt 7 returns to a taut state.

[0042] Example 2

[0043] Based on Example 1, Figure 3 As shown, the arc block 12 provided at the end of the shifting tooth 8 increases the contact area between the shifting tooth 8 and the belt 7. At the same time, when the protrusion 13 provided at the end of the shifting tooth 8 enters the groove 11, the two sides of the protrusion 13 contact the groove 11, thereby increasing the relative sliding resistance between the shifting tooth 8 and the belt 7, so that the first pulley 5 can better drive the belt 7 to move, thereby improving the sampling efficiency and accuracy of the rock sampling drill; in addition, since the spacing between adjacent grooves 11 and the spacing between adjacent protrusions 13 are equal, a plurality of protrusions 13 on the arc block 12 contact the groove 11 at the same time, thereby further increasing the relative sliding resistance between the shifting tooth 8 and the belt 7, thereby improving the sampling efficiency and accuracy of the rock sampling drill.

[0044] Example 3

[0045] Based on Example 2, Figure 3 , Figure 4 and Figure 6As shown, when one of the shifting teeth 8 is subjected to pressure and changes its position, it drives the guide column 17 provided at its end to slide on the first pulley 5, so that the guide column 17 contacts the arc groove 18, and the generated component force drives the turntable 16 to rotate on both sides of the first pulley 5, and contacts the remaining guide columns 17 through other arc grooves 18 on the turntable 16, driving the remaining shifting teeth 8 to slide on the first pulley 5 at the same time until the whole returns to balance, so that the distance from each shifting tooth 8 to the center of the first pulley 5 is kept consistent, ensuring that the combination of the ends of the shifting teeth 8 forms a full circle, so that the protrusion 13 provided at the end of the next shifting tooth 8 can contact the corresponding groove 11 on the belt 7, avoiding the frequent movement of the protrusion 13 and interference with the belt 7, causing the belt 7 to be worn and affecting the service life of the belt 7;

[0046] In addition, when the shifting tooth 8 slides outward on the first pulley 5, the belt 7 coming out of the tightening pulley 10 is compressed, and the tightening pulley 10 is driven to slide inward through the force generated by the contact between the belt 7 and the tightening pulley 10, thereby further compressing the clamping spring 23; when the shifting tooth 8 slides inward on the first pulley 5, the rebound force generated by the compression of the clamping spring 23 drives the second slider 22 to slide on the column 2 until the tightening pulley 10 on the second slider 22 contacts the belt 7, so that the belt 7 is always in a taut state.

[0047] Example 4

[0048] Based on Example 1, Figure 2 and Figure 5 As shown, by rotating the lever 21 on the column 2, the lever 21 generates a component force after contacting the through hole 20, driving the rotating shaft 19 to rotate on the column 2, driving the first pulley 5 to rotate on the column 2, and since the slider is slidably arranged in the slide groove 14, it drives the shifting teeth 8 on the first pulley 5 to move together, driving the belt 7 to move around the first pulley 5 and the second pulley 6, and contacts the belt 7 through one side of the two guide blocks 24, so that the belt 7 between the guide block 24 and the second pulley 6 always maintains a vertical state, driving the slide 4 to press down or lift vertically, and realizing rock and soil sampling of the sampling drill; at the same time, during the rotation of the first pulley 5, the guide column 17 contacts the side of the arc groove 18, driving the turntable 16 to move together, thereby ensuring the stability of the overall structure.

Claims

1. A soil sampling device for civil engineering, comprising a base (1), a column (2), a lifting mechanism (3) and a slide seat (4), characterized in that: The lifting mechanism (3) comprises a first pulley (5) and a second pulley (6) which are rotatably arranged at the upper and lower ends of the column (2) respectively, and a belt (7) sleeved outside the first pulley (5) and the second pulley (6); the sliding seat (4) is slidably arranged on one side of the column (2) and connected to the belt (7); a plurality of shifting teeth (8) are slidably connected to the first pulley (5) in a radial direction, the ends of the shifting teeth (8) are in contact with the belt (7); a return spring (9) is provided between the shifting teeth (8) and the first pulley (5); and a tightening pulley (10) is slidably arranged on the column (2) and in contact with the inner side of the belt (7).

2. A soil sampling device for civil engineering according to claim 1, characterized in that: The inner side of the belt (7) is provided with a plurality of grooves (11), the end of the shifting tooth (8) is provided with an arc block (12), and the side of the arc block (12) is provided with a plurality of protrusions (13) in contact with the grooves (11).

3. A soil sampling device for civil engineering according to claim 2, characterized in that: The spacing between adjacent grooves (11) and the spacing between adjacent protrusions (13) are equal.

4. A soil sampling device for civil engineering according to claim 1, characterized in that: A sliding groove (14) is radially provided on the first pulley (5); a first slider (15) is provided at the end of the shifting tooth (8) and is slidably connected to the sliding groove (14); the return spring (9) is arranged between the first slider (15) and the first pulley (5); and rotating disks (16) are provided on both sides of the first pulley (5) for driving a plurality of first sliders (15) to slide simultaneously in the sliding groove (14).

5. A soil sampling device for civil engineering according to claim 4, characterized in that: The rotating disk (16) is rotatably connected to the first pulley (5); a guide column (17) is provided on one side of the first slider (15); and an arc groove (18) is provided on the rotating disk (16) of the first pulley (5) for sliding contact with the guide column (17).

6. A soil sampling device for civil engineering according to claim 4, characterized in that: A rotating shaft (19) is provided at one end of the first pulley (5). The rotating shaft (19) passes through the turntable (16) and the column (2) respectively and then extends to the outside. A through hole (20) is provided at the end of the rotating shaft (19), and also includes a lever (21) that passes through the through hole (20) and drives the rotating shaft (19) to rotate.

7. A soil sampling device for civil engineering according to claim 1, characterized in that: Two second sliders (22) are slidably connected to the column (2), the tension wheel (10) is rotatably arranged between the two second sliders (22), and a clamping spring (23) is arranged between the second slider (22) and the column (2).

8. The rock and soil sampling device in civil engineering according to claim 1, characterized in that: It also includes guide blocks (24) arranged on both sides of the belt (7), one side of the two guide blocks (24) respectively contacts the two sides of the belt (7), one side of one guide block (24) is flush with one side of the slide seat (4), and one side of the other guide block (24) is tangent to the side of the second pulley (6).

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