Drilling positioning device for rotary excavating cast-in-place pile

Abstract

The utility model belongs to the technical field of positioning devices, and discloses a rotary excavating cast-in-place pile drilling positioning device which comprises a base, a combination plate is connected to one side of the base in an inserted mode, positioning grooves are formed in one sides of the opposite faces of the base and the combination plate, the two positioning grooves are combined to form a positioning hole, and stand columns are welded to the two sides of the upper surface of the base. According to the drilling positioning device for the rotary excavating cast-in-place pile, before the cast-in-place pile is excavated, the base is fixedly installed at the position of a pile hole, then the combined plate is installed on one side of the base, the drill bit descends to the center of the positioning groove before excavation, and then the combined plate is installed at the position of the pile hole. The two detection rods are pulled to make the ends of the detection rods make contact with the drill bit, at the moment, the marking rubber rings are pulled to move to the junctions of the stand columns and the detection rods, the detection rods are pulled out, and the detection rods can make contact with the outer wall of the drill bit by pulling the detection rods in the excavation process; whether the drill bit deviates or not is judged by observing whether the marking rubber ring is located at the junction of the stand column and the detection rod or not.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning devices, in particular to a rotary bored pile drilling positioning device. Background Art

[0002] A bored pile is a type of pile made by drilling a hole in place and pouring concrete or reinforced concrete. Commonly used methods include: (1) bored piles: piles are made by drilling a hole in place and pouring concrete using a spiral drill, a submersible drill, etc. There is no vibration and no soil squeezing during construction, but the settlement of the pile is slightly larger. Spiral drills are suitable for clay, sandy soil and artificial fill above the groundwater level. The drilled soil blocks rise along the spiral blades on the drill rod and are discharged out of the hole. The hole diameter is about 300mm and the drilling depth is 8 to 12m. The drill rod is selected according to the soil quality and water content. Submersible drills are suitable for clay, sandy soil, silt and silty soil, etc., and are especially suitable for drilling holes in soil layers with high groundwater levels. Mud is used to protect the wall when drilling to prevent the hole from collapsing. Use clean water to drill in clay and make your own mud wall; inject prepared mud into sand and drill. During the excavation of bored piles, in order to ensure the accuracy of the pile hole, a positioning device is generally set on the pile hole;

[0003] For example, a drilling positioning device for rotary bored piles, with publication number CN219452024U, includes a base, a leveling mechanism for leveling is provided on the base, a positioning hole is provided on the base for positioning the hole position, the positioning hole passes through the base in the vertical direction, an auxiliary tube is slidably passed through the positioning hole, the outer wall of the auxiliary tube abuts against the inner wall of the positioning hole, the end of the auxiliary tube close to the bottom of the base is fixedly sleeved with a mounting ring, the top of the mounting ring abuts against the base, and the mounting ring and the base are detachably connected by bolts. This application can improve the problem that the inner wall of the positioning hole is easily worn, resulting in the position where the drill rod is inserted being easily offset, thereby affecting the positioning accuracy;

[0004] The positioning device locates the drill bit by setting an auxiliary tube. However, in order to ensure that the drill bit will not be interfered with by the auxiliary tube during the excavation process, the radius of the auxiliary tube is generally larger than the radius of the drill bit. When the drill bit is displaced a small distance during the excavation process, the pile hole position is not easily detected by the naked eye. In order to solve the above problem, a rotary bored pile drilling positioning device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a rotary bored pile drilling positioning device to solve the above problems, comprising:

[0006] The base has a combination plate inserted on one side, and positioning grooves are provided on the opposite sides of the base and the combination plate. The two positioning grooves are combined to form a positioning hole. Columns are welded on both sides of the upper surface of the base, and detection rods are slidably connected inside the two columns. The outer wall of the detection rod is provided with a marking rubber ring, and the two detection rods are perpendicular to each other.

[0007] Through the above technical solution, before the excavation of the bored pile, the base is first fixedly installed at the pile hole, and then the combined plate is installed on one side of the base. Before excavation, the drill bit is lowered to the center of the positioning groove, and the two detection rods are pulled to make the ends of the detection rods contact the drill bit. At this time, the marking rubber ring is pulled to move it to the junction of the column and the detection rod, and the detection rod is pulled outward to make the drill bit start excavating the pile hole. During the excavation process, the detection rod can be pulled to make it contact with the outer wall of the drill bit, and the position of the marking rubber ring can be observed to see whether it is at the junction of the column and the detection rod to determine whether the drill bit has deviated.

[0008] In a preferred embodiment, mounting seats are fixedly installed on both sides of the upper surface of the base, a positioning plate is slidably connected inside the mounting seat, and a plurality of ground-inserting rods are fixedly installed on the bottom of the positioning plate.

[0009] Through the above technical solution, after the base is moved to the pile hole, the positioning plate is hammered to move it down along the mounting seat. During this process, the bottom of the positioning plate is inserted into the ground rod to fix the base.

[0010] In a preferred embodiment, lifting rings are welded to both left and right sides of the upper surface of the positioning plate.

[0011] Through the above technical solution, after the drilling is completed, the lifting equipment is connected to the lifting ring, so that the positioning plate can be pulled out from the ground.

[0012] In a preferred embodiment, a pin sleeve is welded to the upper surface of the combination plate, a positioning rod is fixedly mounted on one side of the upper surface of the base, and a connecting pin is slidably connected to the outer wall of the positioning rod.

[0013] Through the above technical solution, after the pile hole is excavated, the combined plate is pulled out from one side of the base, making it easier to install the pile hole casing into the pile hole.

[0014] In a preferred embodiment, a fixing bolt is threadedly connected to the upper surface of the pin sleeve.

[0015] Through the above technical solution, after the connecting pin enters the pin sleeve, the pin sleeve and the connecting pin are fixed by tightening the fixing bolt.

[0016] In a preferred embodiment, the outer wall of the marking rubber ring is coated with fluorescent powder.

[0017] Through the above technical solution, the fluorescent powder is coated to facilitate night observation.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: the present invention provides a rotary bored pile drilling positioning device.

[0019] Before excavating the bored pile, first fix the base in the pile hole, and then install the combined plate on one side of the base. Before excavating, lower the drill bit to the center of the positioning slot, pull the two detection rods to make the ends of the detection rods contact the drill bit, then pull the marking rubber ring to move it to the junction of the column and the detection rod, pull the detection rod outward, and make the drill bit start excavating the pile hole. During the excavation process, you can pull the detection rod to make it contact with the outer wall of the drill bit, and observe whether the position of the marking rubber ring is at the junction of the column and the detection rod to determine whether the drill bit has deviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 For this utility model Figure 1 A magnified view of middle A;

[0022] Figure 3 For this utility model Figure 1 Magnified view of B.

[0023] Markings in the figure: 1-base; 2-combination plate; 3-positioning groove; 4-column; 5-detection rod; 6-marking rubber ring; 7-mounting seat; 8-positioning plate; 9-ground rod; 10-lifting ring; 11-positioning rod; 12-connecting pin; 13-pin sleeve; 14-fixing bolt. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are 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 shall fall within the scope of protection of the present invention.

[0025] The following will be combined Figure 1-3 A rotary bored pile drilling positioning device according to an embodiment of the present utility model is described in detail.

[0026] Example:

[0027] A rotary bored pile drilling positioning device, comprising:

[0028] The base 1 has a combined plate 2 inserted on one side. Mounting seats 7 are fixedly installed on both sides of the upper surface of the base 1. A positioning plate 8 is slidably connected inside the mounting seat 7. A plurality of ground-inserting rods 9 are fixedly installed at the bottom of the positioning plate 8. After the base 1 is moved to the pile hole, the positioning plate 8 is hammered to move it down along the mounting seat 7. During this process, the ground-inserting rods 9 at the bottom of the positioning plate 8 are inserted into the ground, thereby fixing the base 1. Lifting rings 10 are welded on both sides of the upper surface of the positioning plate 8. When the drilling is completed, the lifting equipment is connected to the lifting ring 10 to pull the positioning plate 8 out of the ground.

[0029] A positioning groove 3 is provided on one side of the facing surface of the base 1 and the combined plate 2. A pin sleeve 13 is welded on the upper surface of the combined plate 2. A positioning rod 11 is fixedly installed on one side of the upper surface of the base 1. The outer wall of the positioning rod 11 is slidably connected with a connecting pin 12. After the pile hole is excavated, the combined plate 2 is pulled out from one side of the base 1 to facilitate the installation of the pile hole casing into the pile hole. A fixing bolt 14 is threadedly connected to the upper surface of the pin sleeve 13. When the connecting pin 12 enters the interior of the pin sleeve 13, the pin sleeve 13 and the connecting pin 12 are fixed by tightening the fixing bolt 14.

[0030] The two positioning grooves 3 are combined to form a positioning hole. Both sides of the upper surface of the base 1 are welded with columns 4. The two columns 4 are slidably connected with detection rods 5. The outer wall of the detection rod 5 is sleeved with a marking rubber ring 6. The outer wall of the marking rubber ring 6 is coated with fluorescent powder. The fluorescent powder is coated to facilitate night observation. The two detection rods 5 are perpendicular to each other. Before excavating the bored pile, the base 1 is first fixedly installed at the pile hole, and then the combined plate 2 is installed on one side of the base 1. Before excavating, the drill bit is lowered to the center of the positioning groove 3, and the two detection rods 5 are pulled to make the ends of the detection rods 5 contact with the drill bit. At this time, the marking rubber ring 6 is pulled to move it to the junction of the column 4 and the detection rod 5, and the detection rod 5 is pulled out to make the drill bit start digging the pile hole. During the excavation process, the detection rod 5 can be pulled to make it contact with the outer wall of the drill bit to observe whether the position of the marking rubber ring 6 is at the junction of the column 4 and the detection rod 5 to determine whether the drill bit is offset.

[0031] Working principle:

[0032] Before excavating the bored pile, the base 1 is first fixedly installed at the pile hole, and then the combined plate 2 is installed on one side of the base 1. Before excavating, the drill bit is lowered to the center of the positioning groove 3, and the two detection rods 5 are pulled to make the ends of the detection rods 5 contact with the drill bit. At this time, the marking rubber ring 6 is pulled to move it to the junction of the column 4 and the detection rod 5, and the detection rod 5 is pulled outward to make the drill bit start excavating the pile hole. During the excavation process, the detection rod 5 can be pulled to make it contact with the outer wall of the drill bit, and the position of the marking rubber ring 6 can be observed to see whether it is at the junction of the column 4 and the detection rod 5 to determine whether the drill bit has deviated.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A rotary bored pile drilling positioning device, characterized by: include: A base (1) is provided with a combination plate (2) inserted on one side thereof, a positioning groove (3) is provided on one side of the facing surface of the base (1) and the combination plate (2), and two positioning grooves (3) are combined to form a positioning hole, columns (4) are welded on both sides of the upper surface of the base (1), and detection rods (5) are slidably connected inside the two columns (4), and the outer wall of the detection rod (5) is provided with a marking rubber ring (6), and the two detection rods (5) are perpendicular to each other.

2. A rotary bored pile drilling positioning device according to claim 1, characterized in that: Mounting seats (7) are fixedly mounted on both sides of the upper surface of the base (1), a positioning plate (8) is slidably connected inside the mounting seat (7), and a plurality of ground insertion rods (9) are fixedly mounted on the bottom of the positioning plate (8).

3. A rotary bored pile drilling positioning device according to claim 2, characterized in that: Lifting rings (10) are welded to both left and right sides of the upper surface of the positioning plate (8).

4. The rotary bored pile drilling and positioning device according to claim 1, characterized in that: A pin sleeve (13) is welded on the upper surface of the combined plate (2), a positioning rod (11) is fixedly installed on one side of the upper surface of the base (1), and a connecting pin (12) is slidably connected to the outer wall of the positioning rod (11).

5. A rotary bored pile drilling positioning device according to claim 4, characterized in that: The upper surface of the pin sleeve (13) is threadedly connected with a fixing bolt (14).

6. The rotary bored pile drilling and positioning device according to claim 1, characterized in that: The outer wall of the marking rubber ring (6) is coated with fluorescent powder.

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