CN216841450U

CN216841450U - A percussion bit for friction pile square pile pore-forming

Info

Publication number: CN216841450U
Application number: CN202220392259.5U
Authority: CN
Inventors: 邢振华; 龚文敬; 张仕亮; 杨保华; 陈蒙; 王美天; 张潇潇
Original assignee: China State Railway Investment Construction Group Co Ltd
Current assignee: China State Railway Investment Construction Group Co Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-06-28
Anticipated expiration: 2032-02-25

Abstract

The utility model discloses a percussion bit for forming a hole on a slide-resistant pile square pile, which comprises a drill tail, a drill body and a rectangular body which are arranged from top to bottom in sequence, the rectangular body is provided with a soil body discharge hole for discharging crushed soil body, a plurality of impact teeth are arranged at intervals below the rectangular body, the drill tail is connected with a hanging ring, during construction, the impact drill bit is hoisted after a hoisting device such as a hoist passes through the hoisting ring and is conveyed to an operation position to enable the impact drill bit to freely fall to move, thereby impacting the rock-soil mass on the working surface, discharging the impacted and broken fine stones along with the slurry from the gap between the soil body discharge hole and the impact teeth, finally impacting into a square hole, punch a hole through mechanical equipment at whole in-process, compare with the construction of traditional manual hole digging, improve the efficiency of construction of friction pile square pile and reduce the safe risk of construction.

Description

A percussion bit for friction pile square pile pore-forming

Technical Field

The utility model belongs to the technical field of the construction, concretely relates to percussion bit for friction pile square pile pore-forming.

Background

The traditional slide-resistant pile construction adopts manual excavation and water grinding drilling operation, the construction footage of each hole every day is 0.3-0.6 m, the construction speed is slow, in the hole digging process, the operation space is small, the geological environment is complex, the operation of workers in the hole is carried out, and the safety risk is large. In the prior art, a construction mode of adopting a rotating head is adopted, and a hole formed by punching the rotating head is a round hole, so that the rotating head is not suitable for a square anti-slide pile.

SUMMERY OF THE UTILITY MODEL

The utility model discloses plan to provide a percussion bit for cling pile square pile pore-forming for can beat out the square hole through machinery when the square pile is under construction, thereby can improve the efficiency of construction of cling pile square pile and reduce the safe risk of construction.

Therefore, the utility model discloses the technical scheme who adopts does: the utility model provides an impact drill bit for anti slide pile square pile pore-forming, includes from the top down bores the tail, bores body and the rectangle body that sets gradually, be provided with on the rectangle body and supply to crush the soil body exhaust hole, whole the bottom of rectangle body is full of cloth has a plurality of impact teeth, it is connected with rings on the brill tail.

Preferably, the rectangular body comprises a rectangular outer frame and a cross-shaped connecting part arranged in the rectangular outer frame, the soil body discharge holes are four 2 × 2 rectangular holes surrounded by the rectangular outer frame and the connecting part, and the bottoms of the rectangular outer frame and the connecting part are all fully distributed with strip-shaped impact teeth with elliptical cross sections.

Further preferably, the outer sides of the impact teeth on the outer side surface of the rectangular body are provided with reinforcing plates.

Preferably, the drill body is composed of four trapezoidal platforms which are connected in a cross shape and are small in top and large in bottom, and four sides of the bottom of the drill body are equal to four sides of the rectangular body in length.

Further preferably, the drill body is provided with lifting lugs on four sides in the middle.

It is further preferred, the brill tail sets up to cylindrically, be provided with around or control the mounting hole that link up on the brill tail, the vertical rings via hole that is provided with and the mounting hole intercommunication on the brill tail, be provided with rings installed part in the mounting hole, rings installed part includes the disc, the disc below is provided with the three cylinder that is located the mounting hole at least, the lower extreme of rings sets firmly at the cylinder inboard after passing rings via hole and disc downwards in proper order.

The utility model has the advantages that: during construction, pass behind the rings through hoisting equipment such as hoist engine and hoist and will strike the drill bit and hoist, transport to the operation position and make the motion of the free fall of drill bit to strike the ground body on the operation face, the tiny stone that is impacted broken is discharged along with mud by soil body discharge hole and the clearance between the impact tooth, finally strikes into the square hole, punches a hole through mechanical equipment at whole in-process, compare with the artifical construction of digging a hole of tradition, improve the efficiency of construction of friction pile square pile and the safe risk that reduces the construction.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a bottom view of the present invention.

Fig. 4 is a left side view of the present invention.

Fig. 5 is a cross-sectional view of fig. 2 taken along section line M-M.

Fig. 6 is a schematic view of the present invention in use.

Detailed Description

The invention will be further described by way of examples with reference to the accompanying drawings:

as shown in fig. 1-6, the impact drill bit for hole forming of the square pile of the slide-resistant pile mainly comprises a drill tail 1, a drill body 2 and a rectangular body 3 which are sequentially arranged from top to bottom, wherein a plurality of impact teeth 4 are arranged below the rectangular body 3 at intervals. In order to facilitate the discharge of the impact broken soil or rock, a plurality of soil body discharge holes 3a are fully distributed at the bottom of the rectangular body 3. In order to conveniently hoist the whole percussion drill, a hoisting ring 5 is connected on the drill tail 1.

The specific structure of the rectangular body 3 comprises a rectangular outer frame 3b and connecting parts 3c which are arranged in the rectangular outer frame 3b and are in a cross shape, soil body discharge holes 3a are four 2 x 2 rectangular holes which are formed by the rectangular outer frame 3b and the connecting parts 3c in a surrounding mode, strip-shaped impact teeth 4 with oval cross sections are fully distributed at the bottoms of the rectangular outer frame 3b and the connecting parts 3c, and the impact teeth at the corners are arranged along an inclination angle of 45 degrees.

In order to reinforce the impact teeth 4 and enhance the impact effect, reinforcing plates 6 are arranged on the outer side surfaces of the impact teeth 4 on the rectangular outer frame 3 b.

The drill body 2 is composed of four trapezoid tables which are connected in a cross shape and are small at the top and big at the bottom, and four sides of the bottom of the drill body 2 are as long as four sides of the rectangular body 3. The drill body 2 is arranged in a trapezoidal structure with a small upper part and a big lower part, so that the friction force of air and water on the impact drill bit in the falling process can be reduced. In order to facilitate the movement of the whole percussion drill, the middle part of the drill body 2 is provided with lugs 9 respectively positioned on four sides, i.e. the middle part of each trapezoidal table is provided with a lug 9.

The drill tail 1 is cylindrical, and an inverted triangular reinforcing block is arranged between four trapezoidal platforms which are connected in a cross manner for increasing the connection between the drill tail 1 and the drill body 2.

The drilling tail 1 is provided with a front mounting hole 1a and a rear mounting hole 1a or a left mounting hole and a right mounting hole which are communicated with the mounting hole 1a, the drilling tail 1 is vertically provided with a lifting ring through hole 1b communicated with the mounting hole 1a, a lifting ring mounting part is arranged in the mounting hole 1a and comprises a disc 8 with a central hole, at least three cylinders 7 located in the mounting holes are arranged below the disc 8, and the lower end of the lifting ring 5 downwards sequentially penetrates through the lifting ring through hole 1b and the disc 8 and then is fixedly arranged on the inner sides of the cylinders 7. In order to reduce the friction force between the lifting ring 5 and the drill tail 1, the upper end and the lower end of the lifting ring through hole 1b are provided with inverted circular arcs 1 c.

In this embodiment, the drill tail, the drill body and the rectangular body are connected together in a welding mode or are directly and integrally formed, and the lifting ring and the lifting lug are also fixed in a welding mode.

Claims

1. The utility model provides a percussion bit for anti slide pile square pile pore-forming which characterized in that: including from the top down drill tail (1), bore body (2) and rectangle body (3) that set gradually, be provided with in rectangle body (3) and supply to crush soil body exhaust soil body discharge hole (3a), it is whole the bottom of rectangle body (3) is full of has a plurality of impact teeth (4), be connected with rings (5) on drill tail (1).

2. The percussion drill bit for the drilling of square piles of slide-resistant piles according to claim 1, wherein: the soil body discharge holes (3a) are four 2 x 2 rectangular holes surrounded by the rectangular outer frame (3b) and the connecting parts (3c), and the bottoms of the rectangular outer frame (3b) and the connecting parts (3c) are all fully distributed with long-strip-shaped impact teeth (4) with oval cross sections.

3. A percussion drill bit for the boring of square piles of slide-resistant piles according to claim 1 or 2, characterized in that: and reinforcing plates (6) are arranged on the outer sides of the impact teeth (4) on the outer side surface of the rectangular body (3).

4. The percussion drill bit for the drilling of square piles of slide-resistant piles according to claim 1, wherein: the drill body (2) is composed of four trapezoidal platforms which are connected in a cross manner and are small at the top and big at the bottom, and four sides of the bottom of the drill body (2) are as long as four sides of the rectangular body (3).

5. A percussion drill bit for the boring of square piles of slide-resistant piles according to claim 1 or 4, characterized in that: lifting lugs (9) which are respectively positioned on four sides are arranged in the middle of the drill body (2).

6. The percussion drill bit for the drilling of square piles of slide-resistant piles according to claim 1, wherein: drill tail (1) sets up to cylindrical, be provided with around or control mounting hole (1a) that link up on drill tail (1), drill tail (1) goes up vertical rings via hole (1b) that is provided with and mounting hole (1a) intercommunication, be provided with rings installed part in mounting hole (1a), rings installed part includes disc (8), disc (8) below is provided with three cylinder (7) that are located mounting hole (1a) at least, the lower extreme of rings (5) sets firmly in cylinder (7) inboardly after passing rings via hole (1b) and disc (8) downwards in proper order.

7. The percussion drill for the boring of square piles of slide-resistant piles according to claim 6, wherein: the upper end and the lower end of the lifting ring via hole (1b) are both provided with inverted circular arcs (1 c).