Rock soil sampling equipment for road survey

Abstract

The invention belongs to the technical field of rock-soil sampling, and discloses rock-soil sampling equipment for road survey, which comprises a drill rod body, the drill rod body comprises an outer sleeve and an inner drill rod rotatably connected in the outer sleeve, and the upper part of the outer sleeve is provided with an arc-shaped adjusting interface extending along the circumferential direction of the outer sleeve; a handle connected with the inner drill rod is inserted into the arc-shaped adjusting port; at least two mounting grooves are formed in the outer wall of the lower part of the outer sleeve, sampling groove cutters are sleeved in the mounting grooves, and the sides, facing the outside, of the sampling groove cutters are opened; and each sampling groove cutter is in transmission connection with the inner drill rod. The inner drill rod can be controlled to positively rotate or reversely rotate in the outer sleeve through sliding of the handle, then the sampling groove cutter is controlled to move out of the mounting groove or return to the mounting groove in a spiral mode, rock and soil are efficiently cut and cut into the sampling groove cutter, sampling of the rock and soil is achieved, the structure is simple and practical, operation is very convenient, and practicability is high. And meanwhile, secondary pollution can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of rock and soil sampling, and in particular relates to a rock and soil sampling device for road surveying. Background Art

[0002] Geotechnical engineering investigation refers to the identification, analysis and evaluation of the geological, environmental characteristics and geotechnical conditions of the construction site according to the requirements of the construction project. The structure and properties of rock and soil have an important influence on the bearing capacity. The sampling of rock and soil plays a very important role in the formulation of construction plans and construction quality. Sampling and analysis of rock and soil is an essential and important work link before construction.

[0003] Existing soil sampling mainly uses a soil sampling device to extract the original test soil as a sample to understand the properties of its base layer. However, the existing soil sampling device, such as the utility model patent with application number 201920702172.1, discloses a soil sampling device for engineering investigation, including a soil sampling device shell, the left and right sides of the soil sampling device shell are fixedly connected with handles, the top of the soil sampling device shell is fixedly connected with a motor fixing frame, the inner side of the motor fixing frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a coupling, and the bottom of the coupling is fixedly connected with a wire The bottom of the screw is fixedly connected to a bearing fixedly connected to the bottom wall of the inner cavity of the earth-taking device shell, the surface of the screw is movably connected to a slide cylinder, the inner cavity of the earth-taking device shell is fixedly connected to a baffle, a cross bar is fixedly installed on the right side of the slide cylinder, a push rod is fixedly installed on the bottom of the cross bar, a piston is fixedly installed on the bottom of the push rod, a soil-taking barrel is fixedly connected to the bottom of the earth-taking device shell, the top of the soil-taking barrel is threadedly connected to a bolt threadedly connected to the bottom of the earth-taking device shell, a propeller is fixedly connected to the surface of the soil-taking barrel, and a drill bit is fixedly installed on the bottom of the soil-taking barrel. Although the above-mentioned earth-taking device can insert the soil-taking barrel into rock and soil for sampling, the soil-taking barrel is prone to secondary contamination during the removal process, and thus it is impossible to determine the properties of the base layer reflected by the sampled soil sample. Summary of the invention

[0004] The purpose of the present invention is to provide a rock and soil sampling device for road surveying to solve the above-mentioned problems existing in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A rock and soil sampling device for road survey, comprising a drill rod body, the drill rod body comprising an outer sleeve and an inner drill rod rotatably connected in the outer sleeve, the upper part of the outer sleeve is provided with an arc-shaped adjustment interface extending along its circumferential direction, a handle connected to the inner drill rod is inserted in the arc-shaped adjustment interface, and the rotation of the inner drill rod is controlled by sliding the handle in the arc-shaped adjustment interface; at least two installation grooves are provided on the outer wall of the lower part of the outer sleeve, and a sampling groove cutter is sleeved in the installation groove, and the sampling groove cutter is set with an opening on one side facing the outside; each sampling groove cutter is transmission-connected to the inner drill rod, and is used to drive the sampling groove cutter to move out of the installation groove or return to the installation groove through the rotation of the inner drill rod.

[0006] As a preferred technical solution in the present invention, a plug connector is provided on the upper part of the inner drill rod, and a plug-in groove for mating with the plug connector is provided at one end of the handle; at least one limit block is protruding from the outer wall of one end of the handle, and at least one limit groove is provided on the inner wall of the outer sleeve, and each limit block is clamped in a limit groove; a sliding gap is provided between one end of the handle and the inner drill rod, and the length of the sliding gap is greater than the depth of the limit groove.

[0007] As a preferred technical solution in the present invention, a limit spring is installed between the plug connector and the inner bottom surface of the plug slot; the other end of the handle extends to the outside of the outer sleeve and is connected to a hand wheel.

[0008] As a preferred technical solution in the present invention, a first bevel gear located inside the outer sleeve is installed on the inner drill rod, and a screw coaxially arranged with the mounting groove is connected to the other side of each sampling slot cutter, the screw is threadedly connected to the outer sleeve, and the outer thread of the screw is connected to a second bevel gear, the second bevel gear is rotatably connected to the inner wall of the outer sleeve, and the second bevel gear is meshed with the first bevel gear.

[0009] As a preferred technical solution in the present invention, the second bevel gear is rotatably connected to the outer sleeve through a first bearing, the outer ring of the first bearing is connected to the inner wall of the outer sleeve, the inner ring of the first bearing is connected to the second bevel gear, and the first bearing is coaxially sleeved outside the screw.

[0010] As a preferred technical solution in the present invention, the upper end of the inner drill rod is rotatably connected to the outer sleeve through a second bearing; the lower end of the inner drill rod is connected to a center drill bit, and a limiting ring is protruding on the inner wall of the outer sleeve at the upper end of the center drill bit, and the upper end of the center drill bit abuts against the limiting ring.

[0011] As a preferred technical solution in the present invention, the rock and soil sampling equipment also includes a traveling frame, which includes a horizontal lower support and a horizontal upper support arranged parallel to the horizontal lower support, and the horizontal upper support is connected to the horizontal lower support through a support column; the drill rod body is installed between the horizontal lower support and the horizontal upper support, and the horizontal lower support is provided with a through hole for facilitating the lifting and lowering of the drill rod body.

[0012] As a preferred technical solution in the present invention, a motor is installed on the bottom surface of the horizontal upper bracket, and the motor shaft of the motor is connected to the outer sleeve; the outer sleeve is rotatably connected to the middle part of a lifting adjustment plate through a third bearing, and both ends of the lifting adjustment plate are slidably connected to the vertical limit rod, and the two ends of the vertical limit rod are respectively connected to the horizontal lower bracket and the horizontal upper bracket; a hydraulic cylinder is installed on the horizontal upper bracket, and the telescopic rod of the hydraulic cylinder is connected to the lifting adjustment plate.

[0013] Beneficial effect: The present invention can control the inner drill rod to rotate forward or reverse in the outer sleeve through the sliding of the handle, and then control the sampling slot cutter to move out of the installation slot or return to the installation slot in a spiral manner, so as to efficiently cut the rock and soil, cut the rock and soil into the sampling slot cutter, and then realize the sampling of rock and soil. The structure is simple and practical, the operation is also very convenient, and secondary pollution can also be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A magnified schematic diagram of part A; Figure 3 for Figure 1 Schematic diagram of the enlarged portion B.

[0015] In the figure: 1-outer sleeve; 2-inner drill rod; 201-plug connector; 3-handle; 4-sampling slot cutter; 5-limit spring; 6-first bevel gear; 7-screw; 8-second bevel gear; 9-first bearing; 10-second bearing; 11-traveling frame; 12-motor; 13-lifting adjustment plate; 14-vertical limit rod; 15-hydraulic cylinder. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0017] Example: like Figure 1-Figure 3 As shown, this embodiment provides a rock and soil sampling equipment for road survey, including a drill rod body, the drill rod body including an outer sleeve 1 and an inner drill rod 2 rotatably connected to the outer sleeve 1, the upper part of the outer sleeve 1 is provided with an arc-shaped adjustment interface extending along its circumferential direction, and a handle 3 connected to the inner drill rod 2 is inserted in the arc-shaped adjustment interface, so as to control the rotation of the inner drill rod 2 by sliding the handle 3 in the arc-shaped adjustment interface, so that the relative stability of the outer sleeve 1 and the inner drill rod 2 is not destroyed during drilling, and when the inner drill rod 2 needs to rotate, it only needs to adjust the handle 3, which is simple and practical; at least two installation grooves are provided on the outer wall of the lower part of the outer sleeve 1, and the installation grooves A sampling groove cutter 4 is connected to the inner sleeve, and the sampling groove cutter 4 is opened on one side facing the outside; each sampling groove cutter 4 is transmission-connected to the inner drill rod 2, so as to drive the sampling groove cutter 4 to move out of the installation groove or return to the installation groove through the rotation of the inner drill rod 2. In practice, the drill rod body is first drilled into the specified position in the rock and soil, and then the handle 3 is used to drive the inner drill rod 2 to rotate, and the inner drill rod 2 drives the sampling groove cutter 4 to move spirally outward, so that the sampling groove cutter 4 forms an effect of cutting the rock and soil, and the rock and soil can also smoothly enter the sampling groove cutter 4, and then the handle 3 is operated in the reverse direction, so that the sampling groove cutter 4 brings the rock and soil into the installation groove, and the rock and soil can be sampled after the drill rod body is withdrawn.

[0018] The present invention can control the inner drill rod 2 to rotate forward or reversely in the outer sleeve 1 through the sliding of the handle 3, and then control the sampling groove cutter 4 to move out of the installation groove or return to the installation groove in a spiral manner, so as to efficiently cut the rock and soil, cut the rock and soil into the sampling groove cutter 4, and then realize the sampling of rock and soil. The structure is simple and practical, the operation is also very convenient, and secondary pollution can also be avoided.

[0019] As a preferred implementation scheme in this embodiment, it needs to be further explained that a plug connector 201 is provided on the upper part of the inner drill rod 2, and a plug-in groove that cooperates with the plug connector 201 is provided at one end of the handle 3, thereby realizing the connection between the handle 3 and the inner drill rod 2, and conveniently driving the inner drill rod 2 to rotate by the handle 3; at least one limit block is convexly provided on the outer wall of one end of the handle 3, and at least one limit groove is provided on the inner wall of the outer sleeve 1, each limit block is clamped in a limit groove, and preferably two limit blocks are provided, the two limit blocks are preferably provided. The limit blocks are symmetrically arranged, which does not affect the loading and unloading of the handle 3 on the outer sleeve 1; a sliding gap is arranged between one end of the handle 3 and the inner drill rod 2, and the length of the sliding gap is greater than the depth of the limit groove, so that the handle 3 can slide along the plug joint 201. When the handle 3 abuts against the inner drill rod 2, the limit block slides out of the limit groove, and the inner drill rod 2 can be controlled to rotate by the handle 3. When the handle 3 is away from the inner drill rod 2, the limit block can be clamped in the limit groove, thereby preventing the inner drill rod 2 from rotating relative to the outer sleeve 1.

[0020] As a preferred implementation scheme in this embodiment, it needs to be further explained that a limit spring 5 is installed between the plug connector 201 and the inner bottom surface of the plug-in slot. When not in operation, the limit spring 5 abuts against the handle 3, so that the limit block can be snapped into the limit slot, ensuring the relative fixation of the inner drill rod 2 and the outer sleeve 1, thereby ensuring stability during drilling. When the inner drill rod 2 needs to be rotated, it only needs to slightly push the handle 3 and move it, which is simple and convenient to operate; the other end of the handle 3 extends to the outside of the outer sleeve 1 and is connected to a handwheel, which can make the adjustment of the handle 3 more convenient.

[0021] As a preferred implementation scheme in this embodiment, it needs to be further explained that a first bevel gear 6 located in the outer sleeve 1 is installed on the inner drill rod 2, and the other side of each sampling slot cutter 4 is connected to a screw 7 coaxially arranged with the mounting groove, the screw 7 is threadedly connected to the outer sleeve 1, and the screw 7 is externally threadedly connected to a second bevel gear 8, the second bevel gear 8 is rotatably connected to the inner wall of the outer sleeve 1, and the second bevel gear 8 is meshed with the first bevel gear 6. When the inner drill rod 2 rotates, it can drive the first bevel gear 6 to rotate, and the rotation of the first bevel gear 6 can drive the second bevel gear 8 to rotate. The rotation of the second bevel gear 8 realizes the spiral adjustment of the screw 7, and then drives the sampling slot cutter 4 to move out of the mounting groove or return to the mounting groove through the screw 7.

[0022] As a preferred implementation scheme in this embodiment, it needs to be further explained that the second bevel gear 8 is rotatably connected to the outer sleeve 1 through the first bearing 9 to ensure its flexibility and stability. The outer ring of the first bearing 9 is connected to the inner wall of the outer sleeve 1, and the inner ring of the first bearing 9 is connected to the second bevel gear 8. The first bearing 9 is coaxially sleeved on the outside of the screw 7, and the connection structure is stable, so that the second bevel gear 8 can be flexibly rotated relative to the outer sleeve 1.

[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that the upper end of the inner drill rod 2 is rotatably connected to the outer sleeve 1 through the second bearing 10, thereby ensuring the stability and flexibility of the inner drill rod 2; the lower end of the inner drill rod 2 is connected to a center drill bit, and a limiting ring is convexly provided on the inner wall of the outer sleeve 1 at the upper end of the center drill bit, and the upper end of the center drill bit abuts against the limiting ring, thereby ensuring the relative stability of the two when drilling.

[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that the rock and soil sampling equipment also includes a traveling frame 11, the traveling frame 11 includes a horizontal lower support and a horizontal upper support arranged parallel to the horizontal lower support, the horizontal upper support is connected to the horizontal lower support through a support column, and the structure is simple; the drill rod body is installed between the horizontal lower support and the horizontal upper support, and a through hole is opened on the horizontal lower support to facilitate the lifting and lowering of the drill rod body, which does not affect the lifting and lowering of the drill rod body.

[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that a motor 12 is installed on the bottom surface of the horizontal upper bracket, and the motor shaft of the motor 12 is connected to the outer sleeve 1, so that the rotation control of the drill pipe body can be realized; the outer sleeve 1 is rotatably connected to the middle part of a lifting and adjusting plate 13 through a third bearing, which does not affect the rotation of the drill pipe body, and both ends of the lifting and adjusting plate 13 are slidingly connected to the vertical limit rod 14, and the two ends of the vertical limit rod 14 are respectively connected to the horizontal lower bracket and the horizontal upper bracket, and the stability of the drill pipe body during lifting and lowering is guaranteed by the lifting and adjusting plate 13; a hydraulic cylinder 15 is installed on the horizontal upper bracket, and the telescopic rod of the hydraulic cylinder 15 is connected to the lifting and adjusting plate 13, so that the lifting and lowering of the drill pipe body can be realized.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rock and soil sampling device for road survey, comprising a drill rod body, characterized in that: The drill rod body comprises an outer sleeve (1) and an inner drill rod (2) rotatably connected to the outer sleeve (1); the upper portion of the outer sleeve (1) is provided with an arc-shaped adjustment interface extending along its circumferential direction; a handle (3) connected to the inner drill rod (2) is inserted into the arc-shaped adjustment interface, and is used to control the rotation of the inner drill rod (2) by sliding the handle (3) in the arc-shaped adjustment interface; at least two installation grooves are provided on the outer wall of the lower portion of the outer sleeve (1); a sampling groove knife (4) is sleeved in the installation groove, and the sampling groove knife (4) is arranged with an opening on one side facing the outside; each sampling groove knife (4) is transmission-connected to the inner drill rod (2) and is used to drive the sampling groove knife (4) to move out of the installation groove or return to the installation groove by the rotation of the inner drill rod (2).

2. The rock and soil sampling equipment for road survey according to claim 1, characterized in that: The upper part of the inner drill rod (2) is provided with a plug connector (201), and one end of the handle (3) is provided with a plug connector slot for plugging with the plug connector (201); at least one stop block is convexly provided on the outer wall of one end of the handle (3), and at least one stop slot is provided on the inner wall of the outer sleeve (1), and each stop block is clamped in a stop slot; a sliding gap is provided between one end of the handle (3) and the inner drill rod (2), and the length of the sliding gap is greater than the depth of the stop slot.

3. The rock and soil sampling equipment for road survey according to claim 2, characterized in that: A limit spring (5) is installed between the plug connector (201) and the inner bottom surface of the plug slot; the other end of the handle (3) extends outside the outer sleeve (1) and is connected to a hand wheel.

4. A rock and soil sampling device for road survey according to any one of claims 1 to 3, characterized in that: The inner drill rod (2) is provided with a first bevel gear (6) located inside the outer sleeve (1); the other side of each sampling slot cutter (4) is connected to a screw rod (7) coaxially arranged with the mounting slot; the screw rod (7) is threadedly connected to the outer sleeve (1); the screw rod (7) is externally threadedly connected to a second bevel gear (8); the second bevel gear (8) is rotatably connected to the inner wall of the outer sleeve (1); and the second bevel gear (8) is meshed with the first bevel gear (6).

5. The rock and soil sampling equipment for road survey according to claim 4, characterized in that: The second bevel gear (8) is rotatably connected to the outer sleeve (1) via a first bearing (9); the outer ring of the first bearing (9) is connected to the inner wall of the outer sleeve (1); the inner ring of the first bearing (9) is connected to the second bevel gear (8); and the first bearing (9) is coaxially sleeved on the outside of the screw (7).

6. The rock and soil sampling equipment for road survey according to claim 1, characterized in that: The upper end of the inner drill rod (2) is rotatably connected to the outer sleeve (1) via a second bearing (10); the lower end of the inner drill rod (2) is connected to a center drill bit, a stop ring is protrudingly provided on the inner wall of the outer sleeve (1) at the upper end of the center drill bit, and the upper end of the center drill bit abuts against the stop ring.

7. The rock and soil sampling equipment for road survey according to claim 1, characterized in that: The rock and soil sampling equipment also includes a traveling frame (11), the traveling frame (11) including a horizontal lower support and a horizontal upper support arranged parallel to the horizontal lower support, the horizontal upper support being connected to the horizontal lower support via a support column; the drill rod body is installed between the horizontal lower support and the horizontal upper support, and a through hole is provided on the horizontal lower support for facilitating the lifting and lowering of the drill rod body.

8. The rock and soil sampling equipment for road survey according to claim 7, characterized in that: A motor (12) is mounted on the bottom surface of the horizontal upper bracket, and a motor shaft of the motor (12) is connected to the outer sleeve (1); the outer sleeve (1) is rotatably connected to the middle part of a lifting adjustment plate (13) via a third bearing, and both ends of the lifting adjustment plate (13) are slidably connected to a vertical limit rod (14), and both ends of the vertical limit rod (14) are respectively connected to the horizontal lower bracket and the horizontal upper bracket; a hydraulic cylinder (15) is mounted on the horizontal upper bracket, and a telescopic rod of the hydraulic cylinder (15) is connected to the lifting adjustment plate (13).

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