Drilling device for civil engineering pile foundation

Abstract

The utility model provides a drilling device for a civil engineering pile foundation, and relates to the technical field of drilling devices. The drilling device for the civil engineering pile foundation comprises a drill rod and an adjusting plate arranged on the lower portion of the drill rod, the upper surface of the adjusting plate is fixedly connected with a supporting barrel, the inner wall of the supporting barrel is slidably connected with the drill rod, a compression resisting mechanism is arranged at the bottom of the drill rod, and a fixing plate is arranged below the adjusting plate. According to the drilling device for the civil engineering pile foundation, the four fixing rods are downwards pressed to the position below the ground through the drilling rod, so that the fixing plate is fixed, then the fixing effect of the fixing rods and the ground is improved through the extrusion mechanism and the fixing mechanism, then drilling is conducted, the situation that the stability of the drilling rod is insufficient during drilling is avoided, and the effect of improving the stability of the drilling rod is achieved; therefore, the problems that in the prior art, the drill rod is only fixed at the end, in the drilling process, the stability of the drill rod is poor, and inclination and deviation of a drilled hole are prone to occurring are solved.

Description

Technical Field

[0001] The utility model relates to a drilling device, in particular to a drilling device for a civil engineering pile foundation, and belongs to the technical field of drilling devices. Background Art

[0002] Pile foundation is a form of deep foundation. It improves the stability of the overall structure by transferring the load of the building to a deeper, more solid soil or rock layer. Pile foundation is widely used in high-rise buildings, bridges, large industrial facilities and projects under special geological conditions such as soft soil foundations or earthquake zones. Pile foundation can effectively reduce the settlement of buildings and improve their seismic performance. It is an important means to solve complex geological problems. Existing pile foundations are generally divided into prefabricated piles, cast-in-place piles, friction piles and end-bearing piles. Among them, during the construction of cast-in-place piles, holes are generally drilled at designated locations, and then the tied steel cage is placed in the hole and concrete is poured to complete the construction. When drilling holes in the ground, a drilling device is generally used.

[0003] The existing drilling device, also known as a drilling vehicle, is generally composed of a vehicle body, a power mechanism and a drill rod thereunder. When in use, the drilling vehicle is first driven to a suitable position, and the drill rod is controlled by the power mechanism to be vertically directed toward the ground. The power mechanism applies a rotational and downward pressure to the drill rod, thereby driving the drill rod below the ground. After reaching the suitable position, the drill rod is pulled out to achieve drilling. However, the existing drill rod is generally only fixed at the end. During the drilling process, the drill rod has poor stability and is prone to tilted or deviated holes. To this end, we provide a drilling device for pile foundations in civil engineering to solve the above problems. Utility Model Content

[0004] In order to solve the above problems, the present invention provides a drilling device for pile foundations in civil engineering to solve the above problems. The specific technical solution is as follows:

[0005] A drilling device for a civil engineering pile foundation comprises a drill rod and an adjusting plate arranged at the lower part of the drill rod, the upper surface of the adjusting plate is fixedly connected to a support tube, the inner wall of the support tube is slidably connected to the drill rod, the bottom of the drill rod is provided with a pressure-resistant mechanism, a fixed plate is provided below the adjusting plate, an adjusting mechanism is provided between the fixed plate and the adjusting plate, a fixing rod is fixedly connected to the inner wall of the fixing plate, an extrusion mechanism is provided inside the fixing rod, a fixing mechanism is provided below the extrusion mechanism, and a horizontal bubble is provided on the upper surface of the adjusting plate.

[0006] Preferably, a reinforcing rod is fixedly connected to the outer surface of the support tube, and one end of the reinforcing rod away from the support tube is fixedly connected to the adjustment plate.

[0007] Preferably, the anti-pressure mechanism includes an anti-pressure plate, the upper surface of the anti-pressure plate is fixedly connected to a fixing piece, the outer surface of the fixing piece is slidably connected to the adjustment plate, and the upper surface of the anti-pressure plate is in contact with the drill rod.

[0008] Preferably, an iron plug is slidably connected to the inner wall of the fixing member, and the lower surface of the iron plug is also slidably connected to the adjustment plate.

[0009] Preferably, the adjustment mechanism includes a fixing sleeve, the outer surface of the fixing sleeve is fixedly connected to the adjustment plate, the inner wall of the fixing sleeve is threadedly connected to a threaded rod, and the lower part of the threaded rod is rotatably connected to the fixing plate.

[0010] Preferably, the extrusion mechanism comprises an extrusion rod, the outer surface of the extrusion rod is slidably connected to the fixed rod, and a square plate is fixedly mounted on the upper surface of the extrusion rod.

[0011] Preferably, the fixing mechanism comprises a movable plate, the lower end of the movable plate is hinged to the fixing rod, and one side surface of the movable plate is slidably connected to an inclined block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The drilling device for the pile foundation of the civil engineering project is provided with components such as a support tube and a fixing rod. First, the four fixing rods are pressed downwards to the ground by the drill rod to fix the fixing plate. The anti-pressure mechanism is removed so that the bottom of the drill rod is no longer sealed. Then, the fixing effect of the fixing rods and the ground is increased by the squeezing mechanism and the fixing mechanism, so that the fixing rods keep the fixing plate fixed. Then, the adjusting mechanism is used to keep the adjusting plate and the support tube fixed before drilling is performed to prevent the drill rod from being insufficiently stable during drilling, thereby achieving the effect of increasing the stability of the drill rod, thereby solving the problem that the existing drill rod is generally fixed only at the end, the drill rod has poor stability during the drilling process, and the drilling hole is prone to tilt and deviation.

[0014] 2. The drilling device of the civil engineering pile foundation is provided with adjustment mechanisms and other components. The distance between the fixed plate and the adjustment plate can be adjusted by screwing the threaded rod. By setting four adjustment mechanisms, the horizontality of the adjustment plate can be adjusted when multiple threaded rods are screwed at the same time. The adjustment plate can be adjusted to a horizontal state by observing the horizontal bubble. The firmness of the support tube and the adjustment plate can be increased by multiple reinforcing rods to prevent the support tube from tilting, thereby increasing the stability of the support tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the adjustment plate in the present utility model;

[0017] Figure 3 This is a schematic diagram of the explosion structure of the extrusion mechanism in the utility model;

[0018] Figure 4 It is a cross-sectional view of the fixing rod in the present utility model;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing mechanism in the utility model.

[0020] Description of the drawings: 1. Drill rod; 2. Adjustment plate; 3. Support tube; 4. Anti-pressure mechanism; 401. Anti-pressure plate; 402. Fixing piece; 403. Iron plug; 5. Fixing plate; 6. Adjustment mechanism; 601. Fixing sleeve; 602. Threaded rod; 7. Fixing rod; 8. Extrusion mechanism; 801. Extrusion rod; 802. Square plate; 9. Fixing mechanism; 901. Movable plate; 902. Oblique block; 10. Horizontal bubble; 11. Reinforcement rod. DETAILED DESCRIPTION

[0021] The present invention will now be further described with reference to the accompanying drawings.

[0022] See also Figure 1-Figure 5 , including a drill rod 1 and an adjusting plate 2 arranged at the lower part of the drill rod 1, the upper surface of the adjusting plate 2 is fixedly connected to the support tube 3, the outer surface of the support tube 3 is fixedly connected to the reinforcing rod 11, and the end of the reinforcing rod 11 away from the support tube 3 is fixedly connected to the adjusting plate 2. The multiple reinforcing rods 11 can increase the firmness of the support tube 3 and the adjusting plate 2 to prevent the support tube 3 from tilting, thereby increasing the stability of the support tube 3.

[0023] The inner wall of the support tube 3 is slidably connected to the drill rod 1, and a pressure-resistant mechanism 4 is provided at the bottom of the drill rod 1. The pressure-resistant mechanism 4 includes an anti-pressure plate 401. The upper surface of the anti-pressure plate 401 is fixedly connected to a fixing part 402, and the outer surface of the fixing part 402 is slidably connected to the adjustment plate 2. The upper surface of the anti-pressure plate 401 contacts the drill rod 1, and the inner wall of the fixing part 402 is slidably connected to a plug 403. The lower surface of the plug 403 is also slidably connected to the adjustment plate 2. By clamping the plug 403 inside the fixing part 402, the anti-pressure plate 401 can be fixed to the lower surface of the adjustment plate 2. During installation, the anti-pressure plate 401 can be first squeezed downward by the drill rod 1, and the anti-pressure plate 401 drives the plug 403 to move downward through the fixing part 402, thereby driving the adjustment plate 2 to move downward.

[0024] A fixing plate 5 is provided below the adjusting plate 2, and an adjusting mechanism 6 is provided between the fixing plate 5 and the adjusting plate 2. The adjusting mechanism 6 includes a fixing sleeve 601, the outer surface of the fixing sleeve 601 is fixedly connected to the adjusting plate 2, and the inner wall of the fixing sleeve 601 is threadedly connected with a threaded rod 602. The lower part of the threaded rod 602 is rotatably connected to the fixing plate 5, and the distance between the fixing plate 5 and the adjusting plate 2 can be adjusted by screwing the threaded rod 602. By setting four adjusting mechanisms 6, when multiple threaded rods 602 are screwed at the same time, the horizontality of the adjusting plate 2 can be adjusted, and then the horizontal bubble 10 can be observed to adjust the adjusting plate 2 to a horizontal state.

[0025] The inner wall of the fixed plate 5 is fixedly connected to the fixed rod 7, and an extrusion mechanism 8 is provided inside the fixed rod 7. The extrusion mechanism 8 includes an extrusion rod 801. The outer surface of the extrusion rod 801 is slidably connected to the fixed rod 7. A square plate 802 is fixedly installed on the upper surface of the extrusion rod 801. The extrusion rod 801 can slide inside the fixed rod 7. The bottom of the extrusion rod 801 is an arc-shaped surface and is smoothed. Applying downward force to the square plate 802 can make the extrusion rod 801 slide toward the inside of the fixed rod 7.

[0026] A fixing mechanism 9 is provided below the extrusion mechanism 8, and the fixing mechanism 9 includes a movable plate 901. The lower end of the movable plate 901 is hinged to the fixed rod 7. One side of the movable plate 901 is slidably connected to a bevel block 902. The bottom of the movable plate 901 can be rotated on the fixed rod 7. When the extrusion rod 801 moves downward, the bevel block 902 can be squeezed, so that the bevel block 902 moves toward the outside of the fixed rod 7, thereby causing the movable plate 901 to rotate, causing the upper end of the movable plate 901 to move toward the outside of the fixed rod 7, so as to increase the fixing effect of the fixed rod 7 and the ground.

[0027] A horizontal bubble 10 is provided on the upper surface of the adjustment plate 2. The upper end of the drill rod 1 is installed on the drilling vehicle. The power components on the drilling vehicle can drive the drill rod 1 to rotate and squeeze downward to facilitate drilling. This is the existing technology and will not be described in detail in this application. The drill rod 1 is located inside the support tube 3. The drill rod 1 can be supported by the support tube 3 to prevent it from shifting or tilting. By observing the horizontal bubble 10, the horizontal state of the adjustment plate 2 can be judged.

[0028] When the utility model is in use: first place the fixing plate 5 at the position where a hole needs to be punched, so that the support tube 3 coincides with the punching position, and adjust the adjusting plate 2 to a horizontal state through the adjusting mechanism 6, and drive the drill rod 1 vertically downward to be inserted into the interior of the support tube 3 through the drilling vehicle, so that the lower part of the drill rod 1 squeezes the anti-pressure plate 401, and the drill rod 1 is only pressed downward without rotating, thereby pressing the four fixing rods 7 downward to below the ground, so that the lower surface of the fixing plate 5 contacts the ground, so as to fix the fixing plate 5, and then control the drill rod 1 to no longer squeeze the anti-pressure plate 401, and slide the iron plug 403 out of the interior of the fixing part 402, so that the anti-pressure plate 401 is removed from the adjusting plate 2, and the anti-pressure plate 401 is taken out between the adjusting plate 2 and the fixed plate 5, so that the bottom of the drill rod 1 is no longer sealed, and the square plate 802 is hammered downward, so that it drives the extrusion rod 801 to move downward, thereby squeezing the inclined block 902, so that the inclined block 902 moves toward the outside of the fixed rod 7, thereby causing the movable plate 901 to rotate, causing the upper end of the movable plate 901 to move toward the outside of the fixed rod 7 to increase the fixing effect of the fixed rod 7 and the ground, and the fixed plate 5 is kept fixed by the fixed rod 7, and then the adjusting plate 2 and the support tube 3 are kept fixed by the adjusting mechanism 6, and then drilling is performed to prevent the drill rod 1 from being insufficiently stable during drilling, thereby achieving the effect of increasing the stability of the drill rod 1.

[0029] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. A drilling device for a civil engineering pile foundation, comprising a drill rod (1) and an adjusting plate (2) arranged at the lower part of the drill rod (1), characterized in that: The upper surface of the adjustment plate (2) is fixedly connected to a support cylinder (3), the inner wall of the support cylinder (3) is slidably connected to the drill rod (1), the bottom of the drill rod (1) is provided with a pressure-resistant mechanism (4), a fixed plate (5) is provided below the adjustment plate (2), an adjustment mechanism (6) is provided between the fixed plate (5) and the adjustment plate (2), a fixed rod (7) is fixedly connected to the inner wall of the fixed plate (5), an extrusion mechanism (8) is provided inside the fixed rod (7), a fixing mechanism (9) is provided below the extrusion mechanism (8), and a horizontal bubble (10) is provided on the upper surface of the adjustment plate (2).

2. A drilling device for a civil engineering pile foundation according to claim 1, characterized in that: A reinforcing rod (11) is fixedly connected to the outer surface of the support tube (3), and one end of the reinforcing rod (11) away from the support tube (3) is fixedly connected to the adjustment plate (2).

3. The drilling device for a civil engineering pile foundation according to claim 1, characterized in that: The anti-pressure mechanism (4) comprises an anti-pressure plate (401), the upper surface of the anti-pressure plate (401) is fixedly connected to a fixing member (402), the outer surface of the fixing member (402) is slidably connected to the adjustment plate (2), and the upper surface of the anti-pressure plate (401) is in contact with the drill rod (1).

4. The drilling device for a civil engineering pile foundation according to claim 3, characterized in that: The inner wall of the fixing member (402) is slidably connected to a plug iron (403), and the lower surface of the plug iron (403) is also slidably connected to the adjustment plate (2).

5. The drilling device for a civil engineering pile foundation according to claim 1, characterized in that: The adjustment mechanism (6) comprises a fixing sleeve (601), the outer surface of which is fixedly connected to the adjustment plate (2), the inner wall of which is threadedly connected to a threaded rod (602), and the lower part of which is rotatably connected to the fixing plate (5).

6. The drilling device for a civil engineering pile foundation according to claim 1, characterized in that: The extrusion mechanism (8) comprises an extrusion rod (801), the outer surface of the extrusion rod (801) is slidably connected to the fixed rod (7), and a square plate (802) is fixedly mounted on the upper surface of the extrusion rod (801).

7. The drilling device for a civil engineering pile foundation according to claim 1, characterized in that: The fixing mechanism (9) comprises a movable plate (901), the lower end of the movable plate (901) is hinged to the fixing rod (7), and one side of the movable plate (901) is slidably connected to an inclined block (902).

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