CN214145432U

CN214145432U - Drill bit fisher of rotary drilling rig

Info

Publication number: CN214145432U
Application number: CN202120189218.1U
Authority: CN
Inventors: 黄文格
Original assignee: Nanning Hongbao Machinery Co ltd
Current assignee: Nanning Hongbao Machinery Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-09-07
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a dig rig drill bit fisher soon, including being used for dismantling the connecting seat of being connected with the rig drilling rod soon, hollow sleeve pipe in the connecting seat below is connected with, the telescopic internal movable rod that has cup jointed, movable rod upper portion can reciprocate at the sleeve intraductal, the bottom fixed connection of movable rod has the hook plate that extends to one side the middle part of movable rod articulates there is the depression bar, the one end of depression bar is located the hook plate directly over, the other end of depression bar articulates there is the flap, the other end of flap with the sheathed tube lateral wall is articulated. Adopt the utility model discloses a fisher need not the staff and sneaks into downthehole fishing of stake to avoided the artifical potential safety hazard of salvaging the existence, just the utility model discloses utilize self action of gravity to realize the centre gripping to the drill bit, need not with the help of external drive mechanism, its simple structure, the simple operation, and preparation and use cost are low.

Description

Drill bit fisher of rotary drilling rig

Technical Field

The utility model belongs to building foundation engineering machinery, concretely relates to dig rig drill bit fisher soon.

Background

The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering, is widely applied to foundation construction engineering such as municipal construction, highway bridges, high-rise buildings and the like, is matched with different drilling tools, and is suitable for hole forming operation of dry or wet type and rock strata; the rotary drilling rig has the characteristics of large installed power, large output torque, large axial pressure, flexibility, high construction efficiency and multiple functions.

In the process of digging a pile hole of a foundation by a rotary drilling rig, the rotary drilling rig is influenced by construction conditions, so that a drilling bucket and a drilling tool often fall into the pile hole, and other foreign matters cannot exist in the pile hole, so that a diver who is called a water ghost needs to fall into the pile hole for fishing. The cost of salvaging is very high for divers, and because the underground geology is very complicated, hole collapse is possible to happen, and a karst cave with a dark current is also possible, so that the life safety of salvaging personnel is seriously threatened.

Disclosure of Invention

To the problem that exists among the above-mentioned prior art, the utility model provides a simple structure, preparation and use cost are low, salvage convenient dig rig drill bit fisher soon.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a dig rig drill bit fisher soon, includes the connecting seat that is used for dismantling the connection with the rig drilling rod soon, hollow sleeve pipe in the connecting seat below is connected with, the cover intraductal movable rod that has cup jointed, movable rod upper portion can reciprocate at the intraductal cover of cover, the bottom fixed connection of movable rod has the hook plate that extends to one side the middle part of movable rod articulates there is the depression bar, the one end of depression bar is located the hook plate directly over, the other end of depression bar articulates there is the flap, the other end of flap with the sheathed tube lateral wall is articulated.

Further, the bottom surface of hook plate is the inclined plane of upwarping.

Furthermore, a pressing plate facing the hook plate is arranged at the end part of the pressing rod positioned right above the hook plate.

Furthermore, a hinge seat is fixed on the side wall of the sleeve, and one end of the hinge plate hinged to the sleeve is hinged to the hinge seat.

Further, the connecting seat is a square head seat.

Furthermore, the pressing rod is U-shaped, the movable rod penetrates through a U-shaped opening part of the pressing rod, two sides of the movable rod are hinged with the pressing rod through hinge pins respectively, and the end part of the U-shaped opening of the pressing rod is hinged with the side wall of the sleeve through a hinge plate respectively.

The utility model discloses a dig rig drill bit fisher soon mainly to be that the bottom is the salvage of digging the rig drill bit soon of platykurtic, this fisher with dig the rig drilling rod soon and be connected, the fisher is along with drilling rod whereabouts in-process, the movable rod receives the action of gravity to be in the naturally drooping state, when the fisher contacts the top of drill bit bottom, the gravity of drilling rod pushes down the sleeve pipe, the relative sleeve pipe rebound of movable rod, and simultaneously, prop open the depression bar, it is rotatory to dig the rig drilling rod soon, it follows rotatory to drive the fisher, can be on the bottom water conservancy diversion of platykurtic to the hook plate, when the drilling rod is lifted up, under the action of gravity, the relative sleeve pipe rebound of movable rod, and drive the depression bar pushes down, thereby tightly the centre gripping of drill bit between hook plate and depression bar, so alright with salvage the drill bit.

Adopt the utility model discloses a fisher need not the staff and sneaks into downthehole fishing of stake to avoided the artifical potential safety hazard of salvaging the existence, just the utility model discloses utilize self action of gravity to realize the centre gripping to the drill bit, need not with the help of external drive mechanism, its simple structure, the simple operation, and preparation and use cost are low.

Drawings

Fig. 1 is a schematic structural diagram of an operating state of the present invention.

Fig. 2 is a schematic structural diagram of another working state of the present invention.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.

As shown in fig. 1 and fig. 2, the drill bit fisher of the rotary drilling rig of the present embodiment includes a connection seat 1 detachably connected to a drill rod of the rotary drilling rig, and the connection seat 1 in the present embodiment is a square head seat. Connecting seat 1 below is connected with interior hollow sleeve pipe 2, sleeve pipe 2 endotheca has connect

movable rod

5, 5 upper portions of movable rod can reciprocate in sleeve pipe 1, the bottom fixed connection of movable rod 5 has hook plate 8 to one side extension, the bottom surface of hook plate 8 is the inclined plane of upwarping. The middle part of the movable rod 5 is hinged with a pressing rod 6, the pressing rod 6 is in a U shape, the movable rod 5 penetrates through a U-shaped opening part of the pressing rod 6, two sides of the movable rod are hinged with the pressing rod 6 through a pin shaft respectively, and the end part of the U-shaped opening part of the pressing rod 6 is hinged with a hinged seat 3 fixed on the side wall of the sleeve 2 through a hinge plate 4 respectively. The other end of the pressure lever 6 is located right above the hook plate 8, and a pressure plate 7 facing the hook plate 8 is arranged at the end.

The utility model discloses a it is the salvage of the rotary drilling rig drill bit that the bottom is the platykurtic to dig the rig drill bit soon mainly to dig the rig drill bit soon, this fisher with dig the rig drilling rod soon and be connected, the fisher is along with drilling rod whereabouts in-process, the movable rod receives the action of gravity to be in the nature flagging state (as shown in fig. 1), when the fisher contacts the top of drill bit bottom, the gravity of drilling rod pushes down the sleeve pipe, the relative sleeve pipe rebound of movable rod, and simultaneously, prop the depression bar open (as shown in fig. 2), it is rotatory to dig the rig drilling rod soon, it follows the rotation to drive the fisher, can be on the hook plate to the bottom water conservancy diversion of platykurtic, when the drilling rod is lifted, under the action of gravity, the relative sleeve pipe rebound of movable rod, and drive the depression bar (as shown in fig. 1), thereby tightly the centre gripping the drill bit between hook plate and depression bar, like this alright come with salvaging the drill bit.

Many modifications and other embodiments of the invention will come to mind to one skilled in the art to which this invention pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a dig rig drill bit fisher soon which characterized in that: including being used for dismantling connecting seat (1) of being connected with rotary drilling rig drilling rod, hollow sleeve pipe (2) in connecting seat (1) below is connected with, cup jointed movable rod (5) in sleeve pipe (2), movable rod (5) upper portion can reciprocate in sleeve pipe (2), the bottom fixed connection of movable rod (5) has hook plate (8) to one side extension the middle part of movable rod (5) articulates there is depression bar (6), the one end of depression bar (6) is located hook plate (8) directly over, the other end of depression bar (6) articulates there is flap (4), the other end of flap (4) with the lateral wall of sleeve pipe (2) is articulated.

2. The drill bit fisher of the rotary drilling rig according to claim 1, wherein: the bottom surface of the hook plate (8) is an upturned inclined plane.

3. The drill bit fisher of the rotary drilling rig according to claim 1, wherein: the end part of the pressure lever (6) which is positioned right above the hook plate (8) is provided with a pressure plate (7) facing the hook plate (8).

4. The drill bit fisher of the rotary drilling rig according to claim 1, wherein: the lateral wall of sleeve pipe (2) is fixed with articulated seat (3), flap (4) with sleeve pipe (2) articulated one end articulates on articulated seat (3).

5. The drill bit fisher of the rotary drilling rig according to claim 1, wherein: the connecting seat (1) is a square head seat.

6. The drill bit fisher of the rotary drilling rig according to any one of claims 1 to 5, wherein: the pressing rod (6) is U-shaped, the movable rod (5) penetrates through a U-shaped opening of the pressing rod (6), two sides of the movable rod are hinged to the pressing rod (6) through hinge pins respectively, and the end part of the U-shaped opening of the pressing rod (6) is hinged to the side wall of the sleeve (2) through a hinge plate (4) respectively.