CN219774060U - Percussion drill bit and salvaging equipment thereof - Google Patents

Abstract

The utility model discloses a percussion drill bit and salvaging equipment thereof, which relate to the technical field of building construction equipment.

Description

Percussion drill bit and salvaging equipment thereof

Technical Field

The utility model relates to the technical field of building construction equipment, in particular to a percussion drill bit and salvaging equipment thereof.

Background

The punched bored pile is one type of bored pile. The cast-in-place pile is formed by directly forming holes on a pile position on a construction site, and then putting a reinforcement cage into the holes for concrete casting. The punching is to use a percussion drill to raise a heavy drill bit with a drill blade, cut rock strata by the impact force of free falling, impact and form a hole, meanwhile form a slurry protection wall, discharge rock mass and slag.

There are two general solutions to this problem, the first method is to replace a new steel cable and hook to salvage, the success rate of this method is very low, one of the common problems is that the hook rotates after hooking, and the pile hole has slurry due to the deep depth of the pile body, so that the position and direction of the hook cannot be observed, and the previous steel cable may remain in the connecting hole of the drill bit, which results in a great reduction of the probability of want to hook the drill bit again. Pile foundation stops the construction for a long time, and mud in the pile hole can gradually precipitate, causes mud concentration to drop simultaneously, and the pile foundation hole can take place the risk of hole collapse, influences follow-up pile quality. The second method adopts a mode of manually submerging the hook, but the method is extremely dangerous and not adopted, so the problem needs to be solved.

Disclosure of Invention

The present utility model aims to provide a percussion drill bit and a fishing device thereof, which overcome the above-mentioned drawbacks in the prior art.

The utility model provides a percussion drill bit, includes bit body, big reinforcing bar circle and little reinforcing bar circle, bit body's top is equipped with the fixed column, big reinforcing bar circle and little reinforcing bar circle are located on the fixed column by last to lower cover, have a plurality of upper portion reinforcing bars of being connected with the fixed column along big reinforcing bar circle's circumference inboard equipartition, have a plurality of lower part reinforcing bars of being connected with the fixed column along little reinforcing bar circle's circumference inboard equipartition.

Preferably, the upper steel bars and the lower steel bars are distributed in a staggered manner.

Preferably, the bottom of the drill bit body is in a circular arc structure.

The salvaging equipment comprises a winch, hooks and the impact drill bit, wherein the lifting frames are connected to the lower end of a steel cable of the winch, a plurality of overhanging frames are uniformly distributed on the side faces of the lifting frames, and the hooks used for hooking on large steel bar rings or small steel bar rings are connected to the overhanging frames through bolts.

Preferably, three hooks 7 are provided.

The utility model has the following advantages:

when the pile foundation operation preparation device is used, when pile foundation operation preparation work is carried out on a construction site, the big steel bar rings and the small steel bar rings with different sizes are welded at the upper end of the drill bit body, when the drill bit body falls on a pile hole, three hooks on a steel cable of a site winch are called at first time, the big steel bar rings or the small steel bar rings at the top of the drill bit body in the three hooks are used, the problem that the probability of falling in the hook drill bit body is caused by free rotation during the falling is solved through the three hooks, the drill bit body is pulled by using winch equipment, the fallen drill bit is salvaged, the fallen drill bit can be effectively salvaged for salvaging equipment through the impact drill bit, and the pile foundation construction operation can be recovered at first time.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a front view of the bit body, large rebar ring and small rebar ring of the present utility model.

Fig. 3 is a top view of the bit body, large rebar ring and small rebar ring of the present utility model.

Fig. 4 is a front view of the hanger, outrigger and hook of the present utility model.

Fig. 5 is a top view of the hanger, outrigger and hook of the present utility model.

Wherein: 1. bit body, 11, fixed column, 2, big steel bar circle, 21, upper portion reinforcing bar, 3, little steel bar circle, 31, lower part reinforcing bar, 4, hoist engine, 41, steel cable, 5, gallows, 6, overhanging frame, 7, crotch.

Detailed Description

The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate, and thorough understanding of the concepts and aspects of the utility model by those skilled in the art.

As shown in fig. 1-5, the utility model provides a percussion drill bit, which comprises a bit body 1, a large steel bar ring 2 and a small steel bar ring 3, wherein the bottom of the bit body 1 is of a circular arc structure, the top of the bit body 1 is provided with a fixed column 11, the large steel bar ring 2 and the small steel bar ring 3 are sleeved on the fixed column 11 from top to bottom, a plurality of upper steel bars 21 connected with the fixed column 11 are uniformly distributed along the inner side of the circumference of the large steel bar ring 2, a plurality of lower steel bars 31 connected with the fixed column 11 are uniformly distributed along the inner side of the circumference of the small steel bar ring 3, the upper steel bars 21 and the lower steel bars 31 are distributed in a staggered manner, namely a plurality of additional steel bar rings are manually welded on the fixed column 11 of the bit body 1 by using a welding device before pile foundation operation, so as to improve the success rate of hooking the bit.

The fishing equipment comprises a winch 4, hooks 7 and the impact drill bit, wherein the lower end of a steel cable 41 of the winch 4 is connected with a lifting frame 5, a plurality of overhanging frames 6 are uniformly distributed along the side face of the lifting frame 5, the overhanging frames 6 are connected with the hooks 7 used for hooking the large steel bar ring 2 or the small steel bar ring 3 through bolts, the hooks 7 are provided with three hooks, a three-head hook 7 is formed by a hook combination device, the large steel bar ring 2 and the small steel bar ring 3 at the top of the drill bit body 1 are hooked by the three hooks 7, the fallen drill bit body 1 is fished by using the winch 4 to pull the steel cable 41, and the success rate of fishing the fallen drill bit body 1 can be effectively improved.

In summary, in the utility model, when pile foundation operation preparation work is performed on a construction site, the big steel bar ring 2 and the small steel bar ring 3 with different sizes are welded at the upper end of the drill bit body 1, when the drill bit body 1 falls on a pile hole, the three-head hook 7 on the steel cable of the site winch 4 is called for the first time, the big steel bar ring 2 or the small steel bar ring 3 at the top of the drill bit body 1 is hooked by the three-head hook 7, the problem that the probability of falling in the hook drill bit body 1 caused by free rotation during the falling is solved by the three-head hook 7, the drill bit body 1 is dragged by the winch 4 equipment, the fallen drill bit is fished, the fallen drill bit can be effectively fished by the impact drill bit to the salvaging equipment, and the pile foundation construction operation can be recovered at the first time.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied to other applications without modification, as long as the inventive concept and technical scheme are adopted.

Claims (5)

1. A percussion drill bit, characterized by: including drill bit body (1), big reinforcing bar circle (2) and little reinforcing bar circle (3), the top of drill bit body (1) is equipped with fixed column (11), on fixed column (11) are located by last to lower cover to big reinforcing bar circle (2) and little reinforcing bar circle (3), along the inboard equipartition of circumference of big reinforcing bar circle (2) have a plurality of upper portion reinforcing bars (21) that are connected with fixed column (11), along the inboard equipartition of circumference of little reinforcing bar circle (3) have a plurality of lower part reinforcing bars (31) that are connected with fixed column (11).

2. A percussion drill bit according to claim 1, characterized in that: the upper steel bars (21) and the lower steel bars (31) are distributed in a staggered mode.

3. A percussion drill bit according to claim 1, characterized in that: the bottom of the drill bit body (1) is of a circular arc structure.

4. A fishing device, characterized in that: the salvaging equipment comprises a winch (4), hooks (7) and the percussion drill bit according to any one of claims 1-3, wherein the lower end of a steel cable (41) of the winch (4) is connected with a lifting frame (5), a plurality of overhanging frames (6) are uniformly distributed along the side face of the lifting frame (5), and the overhanging frames (6) are connected with the hooks (7) used for hooking on the large steel bar ring (2) or the small steel bar ring (3) through bolts.

5. A fishing apparatus as claimed in claim 4, wherein: the hooks (7) are provided with three hooks.