Anti-deviation support for geotechnical investigation and drilling

Abstract

The anti-deviation support comprises a limiting cylinder inserted into a drill hole, a mounting frame is fixed to the periphery of the top of the limiting cylinder, a fixing frame is fixed to the outer side of the mounting frame, and a supporting rod is rotationally connected to an inner cavity of the fixing frame through a movable shaft; one end of the supporting rod extends outwards and is rotationally connected with a first supporting seat through a movable shaft, an adjusting assembly for adjusting the supporting rod is arranged in an inner cavity of the fixed frame, and storage grooves are formed in the periphery of the outer side of the limiting cylinder. A fixing rod on a moving rod extrudes a connecting rod, so that the connecting rod deflects, a second supporting seat moves outwards, a limiting cylinder is fixedly clamped in a hole drilled in advance, then the limiting cylinder is supported on the ground from the outer side through a supporting rod and a first supporting seat, the limiting cylinder is supported and protected, and it is ensured that the position of the limiting cylinder is stable; therefore, the deviation of the rock mass exploration drilling rig can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling, in particular to an anti-deviation support for rock and soil exploration drilling. Background Art

[0002] Drilling or exploration is the use of deep drilling mechanical engineering technology to extract natural resources underground or on the seabed, or to take real-world cross-sections of strata and extract physical samples for use in experiments to obtain relevant data.

[0003] In the prior art, a Chinese utility model with publication number CN220319469U discloses a drilling anti-deviation device for geotechnical engineering surveys, comprising a base, wherein the front, rear, and right lower ends of the base are fixedly connected to a fixed seat, the middle portion of the upper wall of each of the four grooves is provided with a connecting mechanism, the upper left and right upper ends of the base are fixedly connected to a support, the lower middle portions of the left and right lower walls of the support are provided with auxiliary mechanisms, the upper end of the connecting plate is fixedly mounted with a forward and reverse motor, the output end of the forward and reverse motor is fixedly connected to a screw, the outer surface of the screw is threadedly connected to a lifting seat, the middle portion of the upper end of the lifting seat is fixedly mounted with a drilling motor, and the output end of the drilling motor is fixedly connected to a drill rod. The drilling anti-deviation device for geotechnical engineering surveys described in this utility model can prevent the device from deviating when used on uneven ground, thereby avoiding affecting the service life of the drill rod.

[0004] In the above technical solution, the device is connected to the rock and soil through threaded columns to limit the position of the device, prevent the device from shifting on the rock and soil, and ensure the stability of the drilling position. However, when drilling holes in the rock and soil for the threaded columns, it is necessary to ensure the accuracy of the positions of the four sets of drilling holes, otherwise the four sets of threaded columns cannot be fixed on the rock and soil at the same time. The difficulty lies in not only the need to accurately control the distance between the holes of the threaded columns, but also the need to ensure the accuracy of the positions of the holes of the threaded columns and the drilling holes. The rock and soil are hard, and high drilling accuracy is required, which makes construction difficult. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-deviation support for geotechnical exploration drilling, which is achieved by implanting a limit cylinder in a pre-drilled hole, and then moving the rod downward to drive the connecting rod through the fixing rod to move the second support seat out of the storage groove, so that the second support seat fits the inner wall of the hole to support and fix the limit cylinder, and then the adjustment component drives the support rod to deflect downward, contact the ground through the first support seat, support the limit cylinder, and limit the drilling drill rod through the stable limit cylinder to prevent deviation, so as to solve the problems raised in the above background technology.

[0006] The top of the fixing frame is equipped with a fixing rod, and the fixing rod has a first end fixed thereto and a second end fixed thereto for fixing the fixing rod.

[0007] Preferably, the adjustment assembly includes a worm that rotates in the inner cavity of the fixed frame through a bearing, and a fan-shaped worm wheel is fixed to the end of the support rod away from the first support seat. The worm wheel and the side facing the worm are engaged with each other, and the top of the worm passes through the outside of the fixed frame and is fixed with a rotating handle.

[0008] Preferably, the telescopic assembly includes a hydraulic cylinder fixedly embedded on the mounting frame, the top of the moving rod passes through the top of the limiting cylinder and is fixed with a connecting ring, and the piston rod of the hydraulic cylinder extends downward and contacts the connecting ring.

[0009] Preferably, a support spring is sleeved on the outer side of the moving rod, the top of the support spring is fixed to the bottom of the connecting ring, and the bottom of the support spring is fixed in the vertical hole.

[0010] Preferably, a plurality of groups of claw nails are fixed to the bottom of the first support seat, and an anti-slip rubber pad is fixed to the outer side of the second support seat.

[0011] Preferably, the limiting groove is a long groove structure, and the length of the limiting groove is greater than the diameter of the fixing rod.

[0012] Preferably, positioning holes are provided around the top of the connecting ring, the piston rod of the hydraulic cylinder is located above the positioning holes, and the positioning holes are provided in a truncated cone shape.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model moves the mobile rod downward through the telescopic assembly, squeezes the connecting rod through the fixed rod on the mobile rod, deflects the connecting rod, moves the second support seat outward, fixes the limit cylinder in the pre-drilled hole, and then supports the limit cylinder on the ground from the outside using the support rod and the first support seat to support and protect the limit cylinder, ensure the stability of the position of the limit cylinder, and thus prevent the rock exploration drilling device from deviation.

[0015] 2. The present invention increases the gripping force of the first support seat and the second support seat by cooperating with the claw nails and the anti-slip rubber pads to prevent sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional three-dimensional structure of the limiting cylinder of the utility model;

[0018] Figure 3 This is a schematic diagram of a partially disassembled three-dimensional structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing frame of the utility model.

[0020] Numbers in the figure: 1. Limiting cylinder; 2. Mounting frame; 3. Fixed frame; 4. Support rod; 5. First support seat; 6. Adjustment assembly; 61. Worm; 62. Worm gear; 63. Rotary handle; 7. Connecting rod; 8. Second support seat; 9. Moving rod; 10. Fixed rod; 11. Limiting groove; 12. Telescopic assembly; 121. Hydraulic cylinder; 122. Connecting ring; 123. Support spring; 13. Claw nail; 14. Anti-slip rubber pad; 15. Positioning hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figures 1 to 4The shown anti-deviation support for geotechnical exploration drilling includes a limit cylinder 1 inserted into the drill hole, a mounting frame 2 is fixed around the top of the limit cylinder 1, a fixing frame 3 is fixed on the outside of the mounting frame 2, the inner cavity of the fixing frame 3 is rotatably connected to the support rod 4 through a movable shaft, one end of the support rod 4 extends outward and is rotatably connected to the first support seat 5 through a movable shaft, the inner cavity of the fixing frame 3 is provided with an adjustment component 6 for adjusting the support rod 4, receiving grooves are provided around the outer side of the limit cylinder 1, the inner cavity of each group of receiving grooves is rotatably connected to the connecting rod 7 through a movable shaft, one end of the connecting rod 7 is movably connected to the second support seat 8 through a movable shaft, vertical holes extending downward are provided around the top of the limit cylinder 1, a moving rod 9 is movably provided in the inner cavity of the vertical hole, a fixing rod 10 is fixed on the surface of the moving rod 9, a limiting groove 11 is provided on the connecting rod 7, and one end of the fixing rod 10 extends away from the moving rod 9 into the limiting groove 11, and a telescopic component 12 for adjusting the position of the moving rod 9 is provided on the mounting frame 2;

[0023] The movable rod 9 is moved downward by the telescopic assembly 12, and the connecting rod 7 is squeezed by the fixed rod 10 on the movable rod 9 to deflect the connecting rod 7, and the second support seat 8 is moved outward. The limit cylinder 1 is fixed and clamped in the pre-drilled hole, and then supported on the ground from the outside by the support rod 4 and the first support seat 5 to support and protect the limit cylinder 1, ensure the stability of the position of the limit cylinder 1, and thus prevent the rock exploration drilling device from deviation.

[0024] The adjusting assembly 6 includes a worm 61 that rotates in the inner cavity of the fixed frame 3 through a bearing. A fan-shaped worm wheel 62 is fixed to the end of the support rod 4 away from the first support seat 5. The worm wheel 62 and the opposite side of the worm 61 are meshed with each other. The top of the worm 61 passes through the outside of the fixed frame 3 and is fixed with a handle 63. The worm 61 is driven to rotate by the handle 63, and the support rod 4 is swung in cooperation with the worm wheel 62, so that the support rod 4 drives the first support seat 5 to fit on the ground, supporting the limit cylinder 1 from the outside.

[0025] The telescopic assembly 12 includes a hydraulic cylinder 121 fixedly embedded on the mounting frame 2. The top of the moving rod 9 passes through the top of the limit cylinder 1 and is fixed with a connecting ring 122. The piston rod of the hydraulic cylinder 121 extends downward and contacts the connecting ring 122. The piston rod of the hydraulic cylinder 121 moves downward to squeeze the connecting ring 122. The connecting ring 122 is used to synchronously drive the moving rod 9 to move downward, and the connecting rods 7 around it are deflected and adjusted, so that the second support seat 8 is moved out of the storage groove to support and reinforce the limit cylinder 1.

[0026] A support spring 123 is provided on the outer side of the moving rod 9, the top of the support spring 123 is fixed to the bottom of the connecting ring 122, and the bottom of the support spring 123 is fixed in the vertical hole. Through the setting of the support spring 123, it is convenient to support the connecting ring 122, so that the moving rod 9 moves upward, and the second support seat 8 is automatically stored in the storage groove.

[0027] A plurality of claw nails 13 are fixed to the bottom of the first support seat 5, and an anti-skid rubber pad 14 is fixed to the outer side of the second support seat 8. Through the cooperation of the claw nails 13 and the anti-skid rubber pad 14, the grip of the first support seat 5 and the second support seat 8 is increased to prevent sliding.

[0028] The limiting groove 11 is a long groove structure, and the length of the limiting groove 11 is greater than the diameter of the fixing rod 10. By limiting the structure of the limiting groove 11, it is convenient to plug and connect the fixing rod 10, and then the fixing rod 10 slides in the limiting groove 11 to swing the connecting rod 7.

[0029] Positioning holes 15 are provided around the top of the connecting ring 122. The piston rod of the hydraulic cylinder 121 is located above the positioning hole 15, and the positioning hole 15 is provided in a frustum shape. The setting of the positioning hole 15 can prevent the piston rod of the hydraulic cylinder 121 from sliding when in contact with the connecting ring 122.

[0030] During specific use, a hole with a diameter larger than the limit cylinder 1 is drilled on the rock and soil, and then the limit cylinder 1 is implanted, and then the hydraulic cylinder 121 is started. The piston rod of the hydraulic cylinder 121 pushes the connecting ring 122 to move the moving rod 9 downward in the vertical hole, and then the moving rod 9 drives the connecting rod 7 to swing through the fixed rod 10, and then the second support seat 8 is pushed out from the receiving groove, so that the second support seat 8 is attached to the inner wall of the hole, and then the handle 63 is turned to drive the worm 61 to rotate, and then the worm 61 drives the support rod 4 to swing downward through the worm gear 62, so that the first support seat 5 is attached to the ground, which is used to support the limit cylinder 1. Then, when exploring and drilling, the drill rod is passed through the limit cylinder 1 to avoid deviation of the drilling position.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support for preventing deviation in geotechnical exploration drilling, comprising a limiting cylinder (1) inserted into a borehole, characterized in that: The top of the limiting cylinder (1) is fixed with a mounting frame (2) on all sides, and a fixing frame (3) is fixed on the outside of the mounting frame (2). The inner cavity of the fixing frame (3) is connected to a support rod (4) by rotating through a movable shaft. One end of the support rod (4) extends outward and is connected to a first support seat (5) by rotating through a movable shaft. The inner cavity of the fixing frame (3) is provided with an adjustment component (6) for adjusting the support rod (4). The outer side of the limiting cylinder (1) is provided with receiving grooves on all sides, and the inner cavity of each group of the receiving grooves is connected to a connecting rod ( 7), one end of the connecting rod (7) is movably connected to the second support seat (8) through a movable shaft, vertical holes extending downward are provided around the top of the limiting cylinder (1), a moving rod (9) is movably provided in the inner cavity of the vertical hole, a fixed rod (10) is fixed to the surface of the moving rod (9), a limiting groove (11) is provided on the connecting rod (7), one end of the fixed rod (10) away from the moving rod (9) extends into the limiting groove (11), and a telescopic component (12) for adjusting the position of the moving rod (9) is provided on the mounting frame (2).

2. The anti-drift support for geotechnical exploration and drilling according to claim 1, characterized in that: The adjusting assembly (6) includes a worm (61) that rotates in the inner cavity of the fixed frame (3) through a bearing, and a fan-shaped worm wheel (62) is fixed to one end of the support rod (4) away from the first support seat (5). The worm wheel (62) and the worm (61) are meshed with each other on the side facing each other, and the top of the worm (61) passes through the outside of the fixed frame (3) and is fixed with a rotary handle (63).

3. The anti-drift support for geotechnical exploration and drilling according to claim 1, characterized in that: The telescopic assembly (12) comprises a hydraulic cylinder (121) fixedly embedded in the mounting frame (2); the top of the moving rod (9) passes through the upper part of the limiting cylinder (1) and is fixed with a connecting ring (122); the piston rod of the hydraulic cylinder (121) extends downward and contacts the connecting ring (122).

4. The anti-drift support for geotechnical exploration and drilling according to claim 1, characterized in that: A support spring (123) is sleeved on the outer side of the moving rod (9), the top of the support spring (123) is fixed to the bottom of the connecting ring (122), and the bottom of the support spring (123) is fixed in the vertical hole.

5. The anti-drift support for geotechnical exploration and drilling according to claim 1, characterized in that: A plurality of groups of claw nails (13) are fixed to the bottom of the first support seat (5), and an anti-slip rubber pad (14) is fixed to the outer side of the second support seat (8).

6. The anti-drift support for geotechnical exploration and drilling according to claim 1, characterized in that: The limiting groove (11) is a long groove structure, and the length of the limiting groove (11) is greater than the diameter of the fixing rod (10).

7. The anti-drift support for geotechnical exploration and drilling according to claim 3, characterized in that: Positioning holes (15) are provided around the top of the connecting ring (122), the piston rod of the hydraulic cylinder (121) is located above the positioning hole (15), and the positioning hole (15) is provided in a truncated cone shape.

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