A drilling positioning device for a rotary bored pile

Abstract

The utility model provides a kind of drilling positioning device for rotary digging bored pile, it is related to bored pile technical field, including pedestal, the surface center position of the pedestal is provided with convenient dismounting component, the convenient dismounting component includes auxiliary pipe, the inner wall annular distribution of the auxiliary pipe has rolling column.The utility model in need when replacing auxiliary pipe, two groups of handles can be pulled to two sides simultaneously, so that insert block can be removed from the surface of sliding block, then old auxiliary pipe is removed, and new auxiliary pipe is pushed into the surface of pedestal, and it can be automatically fixed by the pushing of spring, the convenience when auxiliary pipe is disassembled is improved, annular rolling column can roll along with the movement of drill rod, sliding friction between drill rod and auxiliary pipe inner wall is changed into rolling friction, greatly reduce friction.This not only reduces the wear degree of drill rod and auxiliary pipe, but also prolongs the service life of auxiliary pipe.

Description

Technical Field

[0001] This utility model relates to the field of bored pile technology, and in particular to a drilling positioning device for rotary bored piles. Background Technology

[0002] Drilled cast-in-place piles are a type of pile foundation made by forming pile holes in the foundation soil through mechanical drilling, steel pipe extrusion, or manual excavation, and then placing a steel cage in the hole and pouring concrete.

[0003] For example, in publication number CN219452024U, a drilling positioning device for rotary cast-in-place piles includes a base with a leveling mechanism and a positioning hole for locating the borehole position. The positioning hole extends vertically through the base, and an auxiliary tube slides through it. The outer wall of the auxiliary tube abuts against the inner wall of the positioning hole. A mounting ring is fixedly sleeved at one end of the auxiliary tube near the bottom of the base, with its top abutting against the base. The mounting ring and the base are detachably connected by bolts. This application can improve the problem of the positioning hole's inner wall being easily worn, causing the drill rod insertion position to easily shift, thus affecting the positioning accuracy.

[0004] This patent can avoid the problem of affecting the positioning accuracy, but the existing auxiliary tube is connected to the surface of the base by fixing bolts, which is inconvenient and cumbersome to disassemble and replace. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the existing technology, the auxiliary pipe is connected to the surface of the base by fixing bolts, which is inconvenient and cumbersome to disassemble and replace.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a drilling positioning device for rotary cast-in-place piles, comprising a base, wherein a convenient disassembly and assembly component is provided at the center of the surface of the base, the convenient disassembly and assembly component includes an auxiliary tube, wherein rolling columns are distributed in a ring on the inner wall of the auxiliary tube, and four sets of positioning blocks are connected in a ring on the outer side of the auxiliary tube, and four sets of positioning holes are connected in a ring on the surface of the base near the auxiliary tube, wherein sliding grooves are provided on both inner walls of the base, and sliders are fixedly connected to both outer surfaces of the auxiliary tube, wherein slots are provided inside both sides of the base, and two sets of springs are connected inside the slots, wherein push rods are inserted into the inside of both sets of springs, and handles are connected to the rear ends of the two sets of push rods, and push plates are connected to the front ends of the two sets of push rods, with insert blocks connected to the surface of the push plates.

[0007] Furthermore, the position and size of the positioning block match the position and size of the positioning hole, and the positioning block and the positioning hole form an interlocking connection.

[0008] Furthermore, the outer surface of the slider is in contact with the inner wall of the groove, and a sliding connection is formed between the slider and the groove.

[0009] Furthermore, the surface of the insert block is provided with a bevel, the insert block and the slot on the surface of the slider form a snap-fit ​​connection, and the push plate and the spring form an elastic structure.

[0010] Furthermore, the front and rear ends of the base are provided with assembly components, the assembly components include a first slot, the left side of the base has a first slot inside, and a second slot is provided at the lower end of the first slot.

[0011] Furthermore, a hole is provided at the top of the first slot, and a hand-tightening bolt is inserted into the hole. A limit block is fixedly connected to the surface of the hand-tightening bolt. A first locking block and a second locking block are respectively provided on the surface of the base on the right side that match the first slot and the second slot.

[0012] Furthermore, each set of the first card blocks has two sets of threaded holes on its surface, and the hand-tightening bolts pass through the holes to form a threaded connection with the threaded holes.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, when the auxiliary tube needs to be replaced, both sets of handles can be pulled simultaneously to remove the insert block from the surface of the slider. Then, the old auxiliary tube can be removed, and the new auxiliary tube can be pushed into the surface of the base, where it is automatically fixed by the spring. This improves the convenience of installing and removing the auxiliary tube. The annular rolling column rolls with the movement of the drill rod, converting the sliding friction between the drill rod and the inner wall of the auxiliary tube into rolling friction, greatly reducing friction. This not only reduces the wear of the drill rod and the auxiliary tube but also extends the service life of the auxiliary tube.

[0015] 2. In this utility model, the base can be separated by turning the hand-tightening bolts, dividing the base into two parts. This allows the device to be disassembled into lightweight modules, which are easy to handle manually or hoist mechanically. It is especially suitable for construction in narrow spaces or high-rise building foundations, thus improving the overall practicality. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a drilling positioning device for rotary drilling piles;

[0017] Figure 2 This utility model provides an exploded view of the auxiliary pipe structure of a drilling positioning device for rotary cast-in-place piles.

[0018] Figure 3 This utility model provides a partial cross-sectional structural diagram of a drilling positioning device for rotary cast-in-place piles.

[0019] Figure 4 This utility model provides an exploded structural diagram of the base of a drilling positioning device for rotary drilling piles.

[0020] Figure 5 This utility model presents a partial cross-sectional structural diagram of the base of a drilling positioning device for rotary cast-in-place piles.

[0021] Legend: 1. Base; 2. Easy-to-assemble and disassemble components; 201. Auxiliary tube; 202. Rolling column; 203. Positioning block; 204. Slider; 205. Positioning hole; 206. Slide groove; 207. Groove; 208. Spring; 209. Push rod; 210. Handle; 211. Push plate; 212. Insert block; 3. Assembled components; 301. First slot; 302. Second slot; 303. Hole; 304. Hand-tightening bolt; 305. Limiting block; 306. First locking block; 307. Threaded hole; 308. Second locking block. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1, as Figure 1 - Figure 3As shown, this utility model provides a drilling positioning device for rotary cast-in-place piles, including a base 1. A convenient disassembly and assembly component 2 is provided at the center of the surface of the base 1. The convenient disassembly and assembly component 2 includes an auxiliary tube 201. Rolling columns 202 are distributed circumferentially on the inner wall of the auxiliary tube 201. Four sets of positioning blocks 203 are circumferentially connected to the outer side of the auxiliary tube 201. Four sets of positioning holes 205 are circumferentially connected to the surface of the base 1 near the auxiliary tube 201. Sliding grooves 206 are provided on the inner walls of both sides of the base 1. Sliding blocks 204 are fixedly connected to the outer surfaces of both sides of the auxiliary tube 201. Slots 207 are provided inside both sides of the base 1. Two sets of springs 208 are connected inside the slots 207. Push rods 209 are inserted into the inside of springs 208. The rear ends of the two sets of push rods 209 are connected to handles 210, and the front ends of the two sets of push rods 209 are connected to push plates 211. Insert blocks 212 are connected to the surface of push plates 211. The position and size of positioning blocks 203 match the position and size of positioning holes 205. Positioning blocks 203 and positioning holes 205 form an interlocking connection. The outer surface of sliders 204 is in contact with the inner wall of slide grooves 206. Sliding connections are formed between sliders 204 and slide grooves 206. The surface of insert blocks 212 has bevels. Insert blocks 212 and slots on the surface of sliders 204 form a snap-fit ​​connection. Push plates 211 and springs 208 form an elastic structure.

[0025] The effect achieved in Embodiment 1 is that, during use, the rolling column 202 and the auxiliary tube 201 cooperate to provide auxiliary positioning. Specifically, the drill rod is inserted into the auxiliary tube 201 to begin drilling. When the drill rod contacts the inner wall of the auxiliary tube 201, it first contacts the annular ball bearings. At this time, as the drill rod moves, the annular rolling column 202 rolls accordingly, transforming the sliding friction between the drill rod and the inner wall of the auxiliary tube 201 into rolling friction, thereby significantly reducing friction. This not only reduces the wear on the drill rod and the auxiliary tube 201 but also extends the service life of the auxiliary tube 201.

[0026] When the auxiliary tube 201 becomes severely worn after prolonged use and needs to be disassembled and replaced, both sets of handles 210 can be pulled to the sides simultaneously. The handles 210 will drive the push plate 211 via the push rod 209 to compress the spring 208, thereby causing the insert block 212 to be pulled out of the slot on the surface of the slider 204. Then, pull the auxiliary tube 201 upwards, causing it to pull the slider 204 out of the slide groove 206, thus completing the disassembly.

[0027] When installing the new auxiliary tube 201, first align the four sets of positioning blocks 203 of the new auxiliary tube 201 with the four sets of positioning holes 205, then push the auxiliary tube 201 downwards, causing the slider 204 to slide into the groove 206. During this process, the slider 204 will press against the angled opening of the insert 212, causing the insert 212 to automatically retract under pressure. When the slider 204 is fully pushed into the groove 206, the positioning blocks 203 will also insert into the positioning holes 205. At this time, the spring 208 will automatically push the push plate 211, causing the insert 212 to insert into the slot on the surface of the slider 204 for fixation. The entire disassembly and assembly process is convenient and quick, improving the ease of disassembly and assembly of the auxiliary tube 201 and avoiding the use of traditional bolt fixing methods.

[0028] Example 2, as Figure 4 and Figure 5 As shown, the front and rear ends of the base 1 are provided with assembly components 3. The assembly components 3 include a first slot 301. The first slot 301 is opened inside the left base 1. A second slot 302 is opened at the lower end of the first slot 301. A hole 303 is opened at the upper end of the first slot 301. A hand-tightening bolt 304 is inserted into the hole 303. A limit block 305 is fixedly connected to the surface of the hand-tightening bolt 304. The surfaces of the right base 1 that match the first slot 301 and the second slot 302 are respectively provided with a first locking block 306 and a second locking block 308. The surface of each set of first locking blocks 306 is provided with two sets of threaded holes 307. The hand-tightening bolt 304 passes through the hole 303 and forms a threaded connection with the threaded hole 307.

[0029] The effect achieved by embodiment 2 is as follows: When disassembling the base 1, the hand-tightening bolt 304 can be reversed so that the bottom end of the hand-tightening bolt 304 can be removed from the threaded hole 307. Then, the remaining hand-tightening bolts 304 are removed from the threaded holes 307 of each first locking block 306. At this time, the base 1 on the right side is pulled outward, which drives the first locking block 306 and the second locking block 308 to be pulled out from the inside of the first locking groove 301 and the second locking groove 302. This completes the disassembly of the base 1. When assembling the base 1, the first locking block 306 and the second locking block 308 can be inserted into the first locking groove 301 and the second locking groove 302. Then, the hand-tightening bolt 304 is rotated clockwise so that it enters the threaded hole 307 to complete the assembly. This is convenient for manual handling or mechanical hoisting, and is especially suitable for narrow spaces or high-rise building foundation construction, improving the overall practicality.

[0030] Working principle: When the auxiliary tube 201 needs to be replaced, both sets of handles 210 can be pulled to both sides simultaneously, allowing the insert block 212 to be removed from the surface of the slider 204. Then, the old auxiliary tube 201 can be removed, and the new auxiliary tube 201 can be pushed into the surface of the base 1. It can be automatically fixed by the push of the spring 208, which improves the convenience of disassembling and assembling the auxiliary tube 201. The annular rolling column 202 can roll with the movement of the drill rod, changing the sliding friction between the drill rod and the inner wall of the auxiliary tube 201 into rolling friction, which greatly reduces the friction force. This not only reduces the wear of the drill rod and the auxiliary tube 201, but also extends the service life of the auxiliary tube 201. The base 1 can be separated by turning the hand-tightening bolt 304, dividing the base 1 into two. The device can be disassembled into lightweight modules, which are convenient for manual handling or mechanical hoisting. It is especially suitable for narrow spaces or high-rise building foundation construction, improving the overall practicality.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A drilling positioning device for rotary cast-in-place piles, comprising a base (1), characterized in that: The base (1) is provided with a convenient assembly and disassembly component (2) at the center of its surface; The convenient assembly / disassembly component (2) includes an auxiliary tube (201). Rolling columns (202) are distributed annularly on the inner wall of the auxiliary tube (201). Four sets of positioning blocks (203) are annularly connected to the outer side of the auxiliary tube (201). Four sets of positioning holes (205) are annularly connected to the surface of the base (1) near the auxiliary tube (201). Sliding grooves (206) are provided on the inner walls of both sides of the base (1). The outer surfaces of both sides of the auxiliary tube (201) are fixedly connected... A slider (204) is attached. The base (1) has slots (207) on both sides. Two sets of springs (208) are connected inside the slots (207). Push rods (209) are inserted into the two sets of springs (208). Handles (210) are connected to the rear ends of the two sets of push rods (209). Push plates (211) are connected to the front ends of the two sets of push rods (209). Insert blocks (212) are connected to the surface of the push plates (211).

2. The drilling positioning device for rotary cast-in-place piles according to claim 1, characterized in that: The position and size of the positioning block (203) match the position and size of the positioning hole (205), and the positioning block (203) and the positioning hole (205) form an interlocking connection.

3. A drilling positioning device for rotary cast-in-place piles according to claim 2, characterized in that: The outer surface of the slider (204) is in contact with the inner wall of the groove (206), and the slider (204) and the groove (206) form a sliding connection.

4. A drilling positioning device for rotary cast-in-place piles according to claim 3, characterized in that: The surface of the insert (212) is provided with a bevel, and the insert (212) and the slot on the surface of the slider (204) form a snap-fit ​​connection. The push plate (211) and the spring (208) form an elastic structure.

5. A drilling positioning device for rotary cast-in-place piles according to claim 1, characterized in that: The base (1) is provided with an assembly component (3) at its front and rear ends. The assembly component (3) includes a first slot (301). The first slot (301) is provided inside the left base (1), and a second slot (302) is provided at the lower end of the first slot (301).

6. A drilling positioning device for rotary cast-in-place piles according to claim 5, characterized in that: The first slot (301) has a hole (303) at its upper end. A hand-tightening bolt (304) is inserted into the hole (303). A limit block (305) is fixedly connected to the surface of the hand-tightening bolt (304). The base (1) on the right side has a first locking block (306) and a second locking block (308) on its surface that matches the first slot (301) and the second slot (302).

7. A drilling positioning device for rotary cast-in-place piles according to claim 6, characterized in that: Each set of the first card block (306) has two sets of threaded holes (307) on its surface. The hand-tightening bolt (304) passes through the hole (303) and forms a threaded connection with the threaded hole (307).

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