CN215632868U

CN215632868U - Rotary drilling bit fishing device

Info

Publication number: CN215632868U
Application number: CN202121411808.0U
Authority: CN
Inventors: 熊斌; 韩军; 宋茂锋; 侯江涛; 任会胜; 陈传来; 王金涛; 王志新
Original assignee: Shandong Expressway Road And Bridge Equipment Engineering Co ltd
Current assignee: Shandong Expressway Road And Bridge Equipment Engineering Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-01-25
Anticipated expiration: 2031-06-24

Abstract

The utility model provides a rotary drilling bit fishing device with high construction speed and low cost, and solves the problem that construction progress is influenced by falling off of a drill bit. The utility model provides a dig drill bit fishing device soon, including the adapter sleeve, otic placode subassembly and guide hook, a plurality of otic placode subassemblies have evenly been arranged to the adapter sleeve lower part, the subassembly connection guide hook can be dismantled on the otic placode subassembly, the guide hook includes first cambered surface, the second cambered surface, two facades, plane and inclined plane, first cambered surface sets up with the second cambered surface relatively, two facade parallel arrangement are between first cambered surface and second cambered surface, first cambered surface one end is equipped with the plane, second cambered surface one end is equipped with the inclined plane, the plane is connected with the inclined plane and is formed triangle-shaped hook-like.

Description

Rotary drilling bit fishing device

Technical Field

The utility model relates to a fishing device, in particular to a rotary drilling bit fishing device, and belongs to the technical field of rotary drilling construction facilities.

Background

The cast-in-situ bored pile is a pile formed by forming a pile hole in foundation soil through mechanical drilling, steel pipe soil extrusion, or manual excavation on an engineering site, placing a reinforcement cage in the pile hole, and pouring concrete. At present, most of mechanical drilling is carried out by using a rotary drill, the front part of a drill rod of the rotary drill is connected with a drill bit, and the drill bit is used for impacting foundation soil to form a pile hole. Hard rock construction can appear often in the work progress, and the condition that the square head fracture or drilling rod round pin broke, drove can appear because of the too big torsion that receives this moment the drill bit to make the drill bit fall to the hole bottom, the stake hole is dark to have reached forty-five meters this moment, need salvage the drill bit after the drill bit falls into in the stake hole in the work progress, just can continue to be under construction, will seriously influence the construction progress, and then can't guarantee the time limit for a project. The mode of current salvage drill bit is mostly that the staff is launched into the downthehole pile hole and will hang the hook and put forward the pile hole with the drill bit on utilizing the crane, and this kind of mode not only need arrange the crane operation but also has very big operation risk, delays the time limit for a project and influences the construction progress.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotary drilling bit fishing device with high construction speed and low cost, and solves the problem that construction progress is influenced by falling off of a drill bit.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a dig drill bit fishing device soon, including the adapter sleeve, otic placode subassembly and guide hook, a plurality of otic placode subassemblies have evenly been arranged to the adapter sleeve lower part, the subassembly connection guide hook can be dismantled on the otic placode subassembly, the guide hook includes first cambered surface, the second cambered surface, two facades, plane and inclined plane, first cambered surface sets up with the second cambered surface relatively, two facade parallel arrangement are between first cambered surface and second cambered surface, first cambered surface one end is equipped with the plane, second cambered surface one end is equipped with the inclined plane, the plane is connected with the inclined plane and is formed triangle-shaped hook-like.

According to the preferable scheme of the rotary drilling bit fishing device, the section of the connecting sleeve is rectangular and has a hollow structure, and hoisting insertion holes are formed in two opposite surfaces of the connecting sleeve.

According to the preferred scheme of the rotary drilling bit fishing device, the lug plate assembly comprises two plate bodies arranged at intervals, bolt through holes are formed in the plate bodies, the guide hooks are located between the plate bodies, the detachable assembly comprises bolts and nuts, and the bolts sequentially penetrate through one of the plate bodies, the guide hooks and the other plate body to be connected with the nuts.

According to the preferable scheme of the rotary drilling bit fishing device, the periphery of the upper part of the connecting sleeve is provided with a boss part.

The utility model has the advantages that:

1. the connecting sleeve of the drill bit fishing device can be designed to be the same as the upper end structure of a rotary drilling drill bit, so that once the drill bit falls to the bottom of a pile hole due to falling, the drill bit can be fished only by connecting the lower end of the drill rod with the connecting sleeve of the fishing device, therefore, the drill bit fishing device is very convenient and practical, has strong universality, and can effectively improve the construction speed and reduce the construction cost.

2. The drill bit fishing device also has the advantages of reasonable structural design, convenience in processing and manufacturing, low cost, simplicity, portability and the like.

3. The connecting sleeve is safe and reliable, operators can realize salvage without entering the pile hole to operate, operation risks are reduced, safety is improved, salvage construction efficiency is greatly improved, construction period is shortened, and powerful guarantee is provided for next smooth construction.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

FIG. 1 is a front view of a rotary drilling bit fishing device of the present invention;

FIG. 2 is a side view of the rotary drilling bit fishing device of the present invention;

FIG. 3 is a top view of the rotary drilling bit fishing device of the present invention;

FIG. 4 is a schematic view of the use state of the rotary drilling bit fishing device of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 2 and fig. 3, a rotary drilling bit fishing device, including adapter sleeve 1, otic placode subassembly 2 and guide hook 3, a plurality of otic placode subassemblies 2 have evenly been arranged to adapter sleeve 1 lower part, detachable component connects guide hook 3 on the otic placode subassembly 2, guide hook 3 includes first cambered surface 31, second cambered surface 32, two facades 33, plane 34 and inclined plane 35, first cambered surface 31 sets up with second cambered surface 32 relatively, two facade 33 parallel arrangement are between first cambered surface 31 and second cambered surface 32, first cambered surface 31 one end is equipped with plane 34, second cambered surface 32 one end is equipped with inclined plane 35, plane 34 is connected with inclined plane 35 and is formed triangular hook.

In this embodiment, the cross-section of adapter sleeve 1 is rectangle and inside hollow structure, and adapter sleeve 1 is equipped with hoist and mount jack 4 for two relative sides.

In this embodiment, otic placode subassembly 2 includes the plate body that two intervals set up, is equipped with the bolt perforation on the plate body, and guiding hook 3 is located between the plate body, can dismantle the subassembly and include bolt 6 and nut 6, and bolt 6 passes one of them plate body, guiding hook 3 and another plate body in proper order and is connected with nut 5.

In this embodiment, the periphery of the upper portion of the connecting sleeve 1 is provided with a boss portion 7.

The working process of the utility model is as follows:

referring to fig. 4, when the drill bit falls into the pile hole, the connecting sleeve 1 is connected with the rotary drilling square head, and the rotary drilling rig is used for lowering the drill bit salvaging device into the pile hole until the drill bit falls. An ear plate 2 is arranged below the connecting sleeve 1, and the ear plate 2 is connected with four guide hooks 3.

The guide hook 3 can move upwards freely in an initial state, and the lower part of the guide hook is provided with a triangular hook shape, so that the guide hook plays a role in guiding the guide hook when the fishing device is lowered. The gib head of transferring in-process four guiding hook 3 is strutted by the drill bit side cover, continues to transfer, and after the gib head of four guiding hook 3 lost the support of drill bit side cover, the guiding hook can hook the drill bit side cover smoothly under the action of gravity, utilizes to dig soon at this moment and creeps into to go to promote can to carry out the drill bit out of the stake hole.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a dig soon and bore drill bit fishing device which characterized in that: including adapter sleeve (1), otic placode subassembly (2) and guide hook (3), a plurality of otic placode subassemblies (2) have evenly been arranged to adapter sleeve (1) lower part, subassembly connection guide hook (3) can be dismantled on otic placode subassembly (2), guide hook (3) include first cambered surface, the second cambered surface, two facades, plane and inclined plane, first cambered surface sets up with the second cambered surface relatively, two facade parallel arrangement are between first cambered surface and second cambered surface, first cambered surface one end is equipped with the plane, second cambered surface one end is equipped with the inclined plane, the plane is connected with the inclined plane and is formed triangle-shaped hook-like.

2. The rotary drilling bit fishing device according to claim 1, wherein: the section of the connecting sleeve (1) is rectangular and has an internal hollow structure, and hoisting insertion holes are formed in two opposite surfaces of the connecting sleeve (1).

3. The rotary drilling bit fishing device according to claim 1, wherein: the ear plate assembly (2) comprises two plate bodies arranged at intervals, bolt through holes are formed in the plate bodies, the guide hooks (3) are located between the plate bodies, the detachable assembly comprises bolts and nuts, and the bolts sequentially penetrate through one of the plate bodies, the guide hooks (3) and the other plate body to be connected with the nuts.

4. The rotary drilling bit fishing device according to claim 1, 2 or 3, wherein: the periphery of the upper part of the connecting sleeve (1) is provided with a boss part.