Drilling rig for geotechnical engineering

Abstract

The utility model discloses a drilling rig for geotechnical engineering relates to drilling rig field, including base and drilling pipe body, the top end of base is inserted with the support pipe, the top end of support pipe is fixedly connected with circular track, the circular track is in sliding connection with the slider, the slider is rotatingly connected with one end of fixed link, and the fixed link is connected with the fixed link. The other end of the fixing rod is slidably connected with a telescopic rod, the bottom end of the telescopic rod is rotatably connected with a rotating block, the rotating block is rotatably connected with a supporting leg, and the axis of a rotating shaft of the supporting leg and the axis of a rotating shaft of the rotating block are orthogonal to the axis of a rotating shaft of the rotating block and the telescopic rod. According to the utility model, on the premise of adapting to the gradient of the mounting position, large rocks influencing the mounting are avoided, so that the drilling rig can be stably and conveniently fixed at the required working position.

Description

Technical Field

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

[0002] Before construction, it is generally necessary to use drilling equipment to survey the geology, environmental characteristics and geotechnical conditions of the construction site to ensure the bearing capacity of the foundation during subsequent construction.

[0003] Existing drilling devices for geotechnical engineering generally include a drilling pipe, which is driven by an electric drive assembly to drill downward toward the area to be drilled. During the process of drilling the drilling pipe underground to obtain rock and soil samples, a simple triangular bracket structure is generally used to fix the drive motor at the top of the drilling pipe to keep the drilling pipe in a vertical state during the process of drilling rock and soil.

[0004] With respect to the above-mentioned related technologies, the length of the existing triangular support structure is generally a fixed value, which is suitable for geotechnical drilling work on a flat bottom surface. When geotechnical drilling work is required on the inclined surface of a hillside, since the drilling surface of the mountain is not parallel to the horizontal plane, and there are generally rocks of different sizes on the mountain that block the placement of the triangular support, in summary, the existing geotechnical engineering drilling equipment is not easy to carry out geotechnical drilling work on the hillside. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a drilling device for geotechnical engineering to solve the technical problem that the existing drilling devices for geotechnical engineering are not easy to perform geotechnical drilling work on a hillside.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drilling device for geotechnical engineering, comprising a base and a drilling pipe body, a support tube is inserted into the top of the base, the top of the support tube is fixedly connected to a ring rail, a slider is slidably connected in the ring rail, the slider is rotatably connected to one end of a fixed rod, the other end of the fixed rod is slidably connected to a telescopic rod, the bottom end of the telescopic rod is rotatably connected to a rotating block, the rotating block is rotatably connected to a supporting foot, the axis of the supporting foot and the rotating shaft of the rotating block is orthogonal to the axis of the rotating shaft of the rotating block and the telescopic rod.

[0007] By adopting the above technical solution, the drilling device can be stably and conveniently fixed at the required working position while adapting to the slope of the installation position and avoiding large rocks that affect the installation.

[0008] The utility model is further configured that a plurality of cables are connected between the top end of the support tube and the base.

[0009] By adopting the above technical solution and utilizing a plurality of tensioned cables arranged around the support tube, the support tube can be more stably fixed on the base.

[0010] The utility model is further configured that the middle part of the cables is connected with a wire tensioner.

[0011] By adopting the above technical solution, the cable is tightened by the wire tensioner.

[0012] The utility model is further configured that the side wall of the support tube is provided with a notch along the length direction.

[0013] By adopting the above technical solution, the drilling pipe body is taken out from or stored in the support pipe through the notch.

[0014] The utility model is further configured that a driving structure for driving the drilling pipe body to rotate is slidably connected inside the support pipe along the vertical direction, and the width of the notch is greater than the drilling pipe body.

[0015] By adopting the above technical solution, it is prevented that the support tube cannot be stored in the support tube through the notch due to being too wide.

[0016] The utility model is further configured that ground nails are inserted into the edge of the base at intervals along the circumferential direction.

[0017] By adopting the above technical solution, the base is stably fixed to the ground where drilling is required by using ground nails.

[0018] The utility model is further configured such that the ground nails are obliquely away from the center of the base.

[0019] By adopting the above technical solution, the soil layer in the drill hole can be effectively prevented from falling off due to the ground nail being inserted into the ground.

[0020] In summary, the utility model mainly has the following beneficial effects:

[0021] The utility model fixes a hollow support tube to a base, utilizes a plurality of slide blocks in a ring track at the top of the drilling tube to adjust the orientation of the support structure, adjusts its own length by telescoping, and utilizes a foot rotatably connected at the bottom to cooperate with a ground nail to flexibly fix it at a suitable position on the hillside. Under the premise of adapting to the slope of the installation position, large rocks that affect the installation are avoided, so that the drilling device can be stably and conveniently fixed at the required working position. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the utility model;

[0023] Figure 2 For the utility model Figure 1 A magnified view of middle;

[0024] Figure 3 For the utility model Figure 1 Enlarged view of middle B;

[0025] Figure 4 It is another perspective stereogram of the utility model;

[0026] Figure 5 For the utility model Figure 3 Enlarged view of C in the middle.

[0027] In the figure: 1. base; 2. support tube; 3. notch; 4. ring rail; 5. slider; 6. fixed rod; 7. telescopic rod; 8. rotating block; 9. supporting foot; 10. cable; 11. wire tensioner; 12. ground nail; 13. drilling pipe body. DETAILED DESCRIPTION

[0028] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0029] The following describes an embodiment of the utility model based on its overall structure.

[0030] Embodiment 1

[0031] A drilling device for geotechnical engineering, such as Figure 1-5 As shown, it includes a base 1 and a drilling pipe body 13, a support tube 2 is inserted at the top of the base 1, a ring rail 4 is fixedly connected to the top of the support tube 2, a slider 5 is slidably connected in the ring rail 4, specifically, a knob for fixing its own position is provided on the slider 5, the slider 5 is rotatably connected to one end of a fixed rod 6, the other end of the fixed rod 6 is slidably connected to a telescopic rod 7, specifically, a fixed knob for locking the telescopic amount of the telescopic rod 7 is provided at one end facing the fixed rod 6, and the specific principle of the fixed knob is that a screw uses friction to achieve the limit between two relatively moving objects, the bottom end of the telescopic rod 7 is rotatably connected to a rotating block 8, the rotating block 8 is rotatably connected to a supporting foot 9, and the axis of the rotating shaft of the supporting foot 9 and the rotating block 8 is orthogonal to the axis of the rotating shaft of the rotating block 8 and the telescopic rod 7.

[0032] See also Figure 1-5A notch 3 is provided on the side wall of the support tube 2 along the length direction, and the drilling pipe body 13 is taken out of or stored in the support tube 2 through the notch 3. A driving structure for driving the drilling pipe body 13 to rotate is slidably connected inside the support tube 2 along the vertical direction. Specifically, the driving structure is a motor driving structure commonly used in existing drilling devices. The width of the notch 3 is larger than the drilling pipe body 13 to prevent the support tube 2 from being unable to be stored in the support tube 2 through the notch 3 due to being too wide. Ground nails 12 are inserted at intervals along the annular direction on the edge of the base 1. The base 1 is stably fixed to the ground to be drilled by using the ground nails. The ground nails 12 are obliquely away from the center of the base 1. The ground nails are inserted into the ground obliquely away from the center of the base 1, so that the part of the ground nail 12 inserted into the ground is away from the borehole, which effectively avoids the soil layer in the borehole falling off caused by the insertion of the ground nails 12 into the ground.

[0033] Embodiment 2

[0034] A drilling device for geotechnical engineering, such as Figure 1-5 As shown, on the basis of Example 1, the difference from Example 1 is that a plurality of cables 10 are connected between the top end of the support tube 2 and the base 1. Specifically, a total of three cables 10 are provided, none of which are located at the notch 3 of the support tube 2. By utilizing the plurality of tensioned cables arranged around the support tube 2, the support tube 2 can be more stably fixed on the base 1. The middle of the cables 10 are connected to a wire tensioner 11, and the cables 10 are tightened by the wire tensioner 11.

[0035] The working principle of the utility model is as follows: the base 1 is placed at the desired drilling position, and then the support tube 2 is plugged onto the base 1, the cable 10 between the base 1 and the top of the support tube 2 is tightened, and the base 1 is plugged into the bottom surface using the ground nail 12, the position of the adjustment slider 5 in the ring rail 4 is rotated, and then the sliding amount of the telescopic rod 7 relative to the fixed rod 6 and the angle of the fixed rod 6 are rotated to adjust the support foot 9 to stably contact the area on the hillside where the ground nails are easily inserted, and then the support foot 9 is fixed with multiple ground nails, and the knob for fixing the slider 5 and the knob at the end of the telescopic rod 7 are rotated and tightened to prevent the slider 5 from continuing to slide in the ring rail 4 and the telescopic rod 7 from continuing to slide relative to the fixed rod 6, thereby achieving stable support for the top of the support tube 2 under complex terrain conditions.

[0036] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A drilling device for geotechnical engineering, comprising a base (1) and a drilling pipe body (13), characterized in that: The top end of the base (1) is plugged with a support tube (2), the top end of the support tube (2) is fixedly connected to a ring rail (4), a slider (5) is slidably connected inside the ring rail (4), the slider (5) is rotatably connected to one end of a fixed rod (6), the other end of the fixed rod (6) is slidably connected to a telescopic rod (7), the bottom end of the telescopic rod (7) is rotatably connected to a rotating block (8), the rotating block (8) is rotatably connected to a support foot (9), the axis of the rotating shaft of the support foot (9) and the rotating block (8) being orthogonal to the axis of the rotating shaft of the rotating block (8) and the telescopic rod (7).

2. The drilling device for geotechnical engineering according to claim 1, characterized in that: A plurality of cables (10) are connected between the top end of the support tube (2) and the base (1).

3. The drilling device for geotechnical engineering according to claim 2, characterized in that: The middle part of the cable (10) is connected with a steel wire tensioner (11).

4. The drilling device for geotechnical engineering according to claim 1, characterized in that: The side wall of the support tube (2) is provided with a notch (3) along the length direction.

5. The geotechnical engineering drilling device according to claim 4, characterized in that: A driving structure for driving the drilling pipe body (13) to rotate is slidably connected to the inside of the support pipe (2) in a vertical direction, and the width of the notch (3) is greater than that of the drilling pipe body (13).

6. The drilling device for geotechnical engineering according to claim 1, characterized in that: Ground nails (12) are inserted into the edge of the base (1) at intervals along the annular direction.

7. The drilling device for geotechnical engineering according to claim 6, characterized in that: The ground nail (12) is inclined away from the center of the base (1).

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