Drilling anti-deviation device for geotechnical exploration

Abstract

The utility model relates to the field of geotechnical engineering, in particular to a drilling anti-deviation device for geotechnical exploration. The utility model provides a drilling anti-deviation device for geotechnical exploration, which can guide and limit a coring pipe, prevent the coring pipe from deviating during sampling, ensure that the coring pipe vertically enters a stratum at a preset position and improve the sampling accuracy. A drilling anti-deviation device for geotechnical exploration comprises a fixing plate, a motor, a supporting seat and the like, the lower side of the fixing plate is connected with the motor, and the fixing end of the motor is connected with the supporting seat. The first connecting block moves on the guide rod, so that the coring pipe moves downwards on the magnetic sleeve, the coring pipe is guided through the guide rod, then the coring pipe is limited through the magnetic sleeve, the coring pipe can be guided and limited, the coring pipe is prevented from shifting in the sampling process, and the sampling efficiency is improved. It is ensured that the coring pipe vertically enters the stratum at the preset position, and the sampling accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of geotechnical engineering, in particular to a drilling deviation prevention device for geotechnical exploration. Background Art

[0002] Drilling for geotechnical exploration is a geological survey method used to obtain information on the physical, chemical and mechanical properties of underground rock and soil layers. It is one of the commonly used technical means in geotechnical engineering and geological exploration. Through drilling, direct samples of underground rock and soil, namely cores or soil samples, can be obtained, and then the stability, bearing capacity, permeability, compressibility and other engineering properties of the strata can be analyzed and evaluated, providing a scientific basis for the site selection, design, construction and operation of construction projects, bridges, tunnels, dams, mines and other projects.

[0003] Existing drilling for geotechnical exploration uses a handheld drill to sample the rock and soil manually. However, the manual handheld drill is prone to deviation of the drill rod during the sampling process, and it is impossible to ensure that the core tube enters the formation vertically, thereby affecting the accuracy of geotechnical sampling, which is relatively inconvenient.

[0004] Therefore, it is necessary to design a drilling anti-deviation device for geotechnical exploration that can guide and limit the core tube to avoid deviation of the core tube during sampling, ensure that the core tube enters the formation vertically at a predetermined position, and improve the accuracy of sampling. Utility Model Content

[0005] In order to overcome the shortcomings of existing drilling for geotechnical exploration, direct manual hand-held drilling can easily cause the drill rod to deviate during the sampling process, and it is impossible to ensure that the core tube enters the formation vertically, thus affecting the accuracy of geotechnical sampling. The utility model provides a drilling anti-deviation device for geotechnical exploration that can guide and limit the core tube to avoid the deviation of the core tube during sampling, ensure that the core tube enters the formation vertically at a predetermined position, and improve the accuracy of sampling.

[0006] The technical solution is: a drilling anti-deviation device for geotechnical exploration, including a fixed plate, a motor, a support seat, a handle, a core tube, a drill bit, a first connecting block, a guide rod, screws and a fixed seat, the lower side of the fixed plate is connected to the motor, the fixed end of the motor is connected to the support seat, the left and right sides of the support seat are connected to handles, a rotating block is provided on the motor output shaft, the rotating block is threadedly connected to the core tube, the lower side of the core tube is connected to the drill bit, the front, rear and right parts of the support seat are detachably connected to the first connecting block by screws, the first connecting block is slidably connected to the guide rod, and the lower side of the guide rod is connected to the fixed seat.

[0007] Furthermore, the handles are all provided with soft pads.

[0008] Furthermore, a plurality of fixing cones are provided on the fixing seat.

[0009] Furthermore, it also includes a second connecting block, a rotating part, a limit pin, a spring, a telescopic rod and a limit ring. The second connecting block is connected to the upper left side of the fixed seat on the front side of the right part, and the upper and lower parts of the second connecting block are rotatably connected to the rotating part. The fixed seat on the front side of the left part and the fixed seat on the rear side are slidably connected to the telescopic rod, the inner side of the telescopic rod is connected to the limit pin, the limit pin is connected to the adjacent fixed seat with a spring, the left side of the rotating part is connected to the limit ring, and the limit ring is clamped with the adjacent limit pin.

[0010] Furthermore, it also includes a magnetic suction sleeve, the limiting ring is clamped with the magnetic suction sleeve inside, and the magnetic suction sleeve is in contact with the core tube.

[0011] Furthermore, it also includes a clamping screw, which is clamped between the left part of the limiting ring, and a nut is arranged on the clamping screw, and the nut contacts the limiting ring at the rear.

[0012] The beneficial effects of the utility model are as follows: 1. The utility model moves the first connecting block on the guide rod, so that the core tube moves downward on the magnetic sleeve, is guided by the guide rod, and then the core tube is limited by the magnetic sleeve, thereby achieving the effect of guiding and limiting the core tube, avoiding the core tube from being offset during sampling, ensuring that the core tube enters the formation vertically at a predetermined position, and improving the accuracy of sampling.

[0013] 2. The utility model loosens the clamping screw by rotating, and then rotates the limit ring to drive the rotating part to rotate on the second connecting block, so that the limit ring and the magnetic sleeve no longer contact the core tube, and then the core tube is taken out, so that the device can be disassembled and is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0016] Figure 3 It is a partial three-dimensional structural sectional view of the utility model.

[0017] Figure 4 It is a partial three-dimensional structure explosion diagram of the utility model.

[0018] Figure numbers: 1_fixed plate, 2_motor, 3_support seat, 4_handle, 5_core tube, 6_drill bit, 7_first connecting block, 8_guide rod, 9_screw, 10_fixed seat, 11_second connecting block, 12_rotating part, 13_limiting pin, 14_spring, 15_telescopic rod, 16_limiting ring, 17_magnetic sleeve, 18_clamping screw. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] A drilling anti-deviation device for geotechnical exploration, such as Figure 1-Figure 4 As shown, it includes a fixed plate 1, a motor 2, a support seat 3, a handle 4, a core tube 5, a drill bit 6, a first connecting block 7, a guide rod 8, a screw 9, a fixed seat 10, a second connecting block 11, a rotating member 12, a limit pin 13, a spring 14, a telescopic rod 15, a limit ring 16, a magnetic sleeve 17 and a clamping screw 18. The lower side of the fixed plate 1 is connected to the motor 2, the fixed end of the motor 2 is connected to the support seat 3, the left and right sides of the support seat 3 are connected to the handle 4, the handle 4 is provided with a cushion, a rotating block is provided on the output shaft of the motor 2, the core tube 5 is threadedly connected to the rotating block, and the drill bit 6 is connected to the lower side of the core tube 5, the front, rear and right parts of the support seat 3 are detachably connected to the first connecting block 7 by screws 9, the first connecting block 7 is slidably connected to the guide rod 8, and the lower side of the guide rod 8 is connected A fixing seat 10 is provided with four fixing cones for easy fixing. A second connecting block 11 is connected to the upper left side of the fixing seat 10 on the front side of the right part. The upper and lower parts of the second connecting block 11 are rotatably connected to a rotating member 12. A telescopic rod 15 is slidably connected to the fixing seat 10 on the front side of the left part and the fixing seat 10 on the rear side. A limiting pin 13 is connected to the inner side of the telescopic rod 15. A spring 14 is connected between the limiting pin 13 and the adjacent fixing seat 10. A limiting ring 16 is connected to the left side of the rotating member 12. The limiting ring 16 is clamped with the adjacent limiting pin 13. A magnetic sleeve 17 is clamped inside the limiting ring 16. The magnetic sleeve 17 is in contact with the core tube 5. A clamping screw 18 is clamped between the left part of the limiting ring 16. A nut is provided on the clamping screw 18, and the nut is in contact with the limiting ring 16 at the rear.

[0021] When using the device, first hold the cushion on the handle 4 to insert the fixed cone on the fixed seat 10 into the rock and soil, fix the guide rod 8 through the fixed seat 10, and then start the motor 2 on the support seat 3 to drive the rotating block to rotate, so that the core tube 5 rotates, and drives the drill bit 6 to rotate. At the same time, the support seat 3 moves downward, and drives the first connecting block 7 to move on the guide rod 8, so that the core tube 5 moves downward on the magnetic sleeve 17, and is guided by the guide rod 8. Then, the core tube 5 is limited by the magnetic sleeve 17, so that the core tube 5 can be guided and limited, so as to avoid the core tube 5 from being offset during sampling, and ensure that the core tube 5 enters the formation vertically at a predetermined position, thereby ensuring that the core tube 5 can be effectively prevented from being deviated during sampling. High sampling accuracy. When the device needs to be disassembled, the screw 9 can be rotated and loosened, and the fixing seat 10 can be removed. Then the telescopic rod 15 is moved outward, and the spring 14 is squeezed and contracted, driving the limit pin 13 to move, so that the limit pin 13 no longer contacts the limit ring 16, and then the nut is rotated and loosened, and the clamping screw 18 is removed, and then the limit ring 16 is rotated to drive the rotating member 12 to rotate on the second connecting block 11, so that the limit ring 16 and the magnetic sleeve 17 no longer contact the core tube 5, and then the core tube 5 is taken out, and then the telescopic rod 15 is loosened, the spring 14 is restored, and the telescopic rod 15 is driven to move and reset, so that the device can be disassembled and the device is convenient to carry.

[0022] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A drilling anti-deviation device for geotechnical exploration, characterized in that: The invention comprises a fixing plate (1), a motor (2), a support seat (3), a handle (4), a core tube (5), a drill bit (6), a first connecting block (7), a guide rod (8), a screw (9) and a fixing seat (10). The fixing plate (1) is connected to the motor (2) at the lower side, the fixing end of the motor (2) is connected to the support seat (3), the left and right sides of the support seat (3) are connected to the handle (4), the output shaft of the motor (2) is provided with a rotating block, the rotating block is threadedly connected to the core tube (5), the lower side of the core tube (5) is connected to the drill bit (6), the front, rear and right parts of the support seat (3) are detachably connected to the first connecting block (7) by screws (9), the first connecting block (7) is slidably connected to the guide rod (8), and the lower side of the guide rod (8) is connected to the fixing seat (10).

2. The drilling anti-deviation device for geotechnical exploration according to claim 1, characterized in that: The handles (4) are all provided with soft pads.

3. The drilling anti-deviation device for geotechnical exploration according to claim 2, characterized in that: A plurality of fixing cones are arranged on the fixing seat (10).

4. The drilling anti-deviation device for geotechnical exploration according to claim 3, characterized in that: The invention also comprises a second connection block (11), a rotating member (12), a limit pin (13), a spring (14), a telescopic rod (15) and a limit ring (16); the upper left side of the fixed seat (10) on the front side of the right part is connected with the second connection block (11); the upper and lower parts of the second connection block (11) are both rotatably connected with the rotating member (12); the fixed seat (10) on the front side of the left part and the fixed seat (10) on the rear side are both slidably connected with the telescopic rod (15); the inner side of the telescopic rod (15) is connected with the limit pin (13); the limit pin (13) and the adjacent fixed seat (10) are connected with a spring (14); the left side of the rotating member (12) is connected with the limit ring (16); the limit ring (16) is clamped with the adjacent limit pin (13).

5. The drilling anti-deviation device for geotechnical exploration according to claim 4, characterized in that: It also includes a magnetic suction sleeve (17), the interior of the limiting ring (16) is clamped with the magnetic suction sleeve (17), and the magnetic suction sleeve (17) is in contact with the core tube (5).

6. The drilling deviation prevention device for geotechnical exploration according to claim 5, characterized in that: It also comprises a clamping screw (18), which is clamped between the left part of the limiting ring (16), and a nut is arranged on the clamping screw (18), and the nut contacts the limiting ring (16) at the rear.

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