CN212716511U

CN212716511U - Screw principle fishing device

Info

Publication number: CN212716511U
Application number: CN202021147287.8U
Authority: CN
Inventors: 王怀营
Original assignee: Jiangmen Baorui Mechanical Engineering Co ltd
Current assignee: Jiangmen Baorui Mechanical Engineering Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-03-16
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a screw rod principle fishing device, include and dig the connection side cover that the rig drilling rod is connected soon, two opposite faces at connection side cover top have welded rings respectively, the bottom of connecting the side cover is provided with side cover bottom plate, the bottom of connecting the side cover is through side cover bottom plate fixedly connected with lead screw, be provided with combination nut and flange on the lead screw, flange entangles lead screw bottom screens, combination nut symmetry is provided with the couple connecting plate all around, the engaging lug on the combination nut is connected with the couple connecting plate through first bolt respectively, the one end of couple connecting plate is connected on the second bolt at combination couple middle part, the one end of combination couple is passed through the third bolt and is connected with the engaging lug on the flange. The utility model discloses salvage to the spare part that drops is safer than salvage technique in the past, can reuse many times, and salvage speed and accuracy are higher, reduce the loss on the economy.

Description

Screw principle fishing device

Technical Field

The utility model relates to an auxiliary appliance technical field in the bored pile drilling work progress specifically is a screw rod principle fishing device.

Background

The rotary drilling rig is common equipment for drilling bored concrete piles and is applicable to most soil layer pile foundations. The rotary drilling bit is used as a main part for directly forming the hole, and the rotary drilling bit works in the deep pile for a long time, so that the phenomenon that some parts are loosened and fall off is avoided. The reason is as follows:

1. the connection pin connecting the drill rod is broken by fatigue, resulting in the drill rod being loosened from the drill bit.

2. The safety pin locking the connecting pin is sheared off, and the pin is automatically withdrawn due to vibration in the drilling process, so that the separation of the drill rod and the drill bit is initiated.

3. The connection square sleeve of the drill bit is subjected to fatigue failure, so that the drill rod is separated from the drill bit barrel when the torque is transmitted.

4. The safety pin connecting the central shafts of the upper and lower bottom plates is sheared, resulting in the lower bottom plate falling off.

In either case, the drill bit may be caused to fall off, which may cause the drill bit to sink. The dropped drill bit is positioned in the mud with the depth of dozens of meters underground, so that the drill bit cannot be seen and touched, and the difficulty in fishing is very high. The common salvage mode is salvage under personnel usually, salvage after utilizing wire rope to fix the drill bit, and the potential safety hazard of this kind of salvage mode is very big. The potential safety hazard of the salvaging mode is very small because the steel wire rope and the hook are in flexible connection, and the drill bit is positioned in mud which is dozens of meters deep underground, so that the method cannot be seen or touched, and the success rate of the method is not high.

The main defects of the current fishing mode are as follows: the potential safety hazard is very big and these problems of success rate not high, the utility model discloses can be fast, accurate and safely salvage out the drill bit or the drill bit accessories that drop in the deep pile.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a screw rod principle fishing device to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a screw rod principle fishing device, includes the square sleeve of being connected with the drilling rig drilling rod of digging soon, two opposite faces at connection square sleeve top have welded rings respectively, the bottom of connecting the square sleeve is provided with square sleeve bottom plate, the bottom of connecting the square sleeve is through square sleeve bottom plate fixedly connected with lead screw, be provided with combination nut and flange on the lead screw, flange entangles lead screw bottom screens, combination nut symmetry is provided with the couple connecting plate all around, the engaging lug on the combination nut is connected with the couple connecting plate through first bolt respectively, the one end of couple connecting plate is connected on the second bolt at combination couple middle part, the one end of combination couple is passed through the engaging lug on third bolt and the flange and is connected.

Preferably, the bottom of the connecting square sleeve is fixedly connected with a screw rod through a lower supporting plate of the square sleeve.

Preferably, the screw rod is in threaded connection with the combined nut.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses salvage to the spare part that drops is safer than salvage technique in the past, and the mode of salvaging under letting the people in the past is dangerous high, in case the people appears any accident down then can lead to very serious social influence, uses the device of the utility model discloses a device, reuse many times, its cost is comparatively cheap for asking the price under the manual work, moreover the utility model discloses a salvage speed and accuracy higher thereby can make the construction in building site receive the time of influence shorter, this also can reduce the loss in the economy, the utility model discloses a cooperation of rig is used and can be made salvage speed and accuracy all higher.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

In the figure: the square sleeve is connected by 1, the lifting ring is connected by 2, the lower supporting plate is connected by 3, the reinforcing ribs are connected by 4, the screw rod is connected by 5, the combined nut is connected by 6, the positioning flange is connected by 7, the hook connecting rod is connected by 8, the combined hook is connected by 9, the first bolt is connected by 10, the second bolt is connected by 11, and the third bolt is connected by 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment 1, please refer to fig. 1, a screw rod principle fishing device, including the square sleeve 1 of being connected with the drilling rod of rotary drilling rig, rings 2 have been welded respectively to two opposite faces at the top of the square sleeve 1 of being connected, the bottom of the square sleeve 1 of being connected is provided with square sleeve bottom plate 3, the bottom of the square sleeve 1 of being connected is through square sleeve bottom plate 3 fixedly connected with lead screw 5, be provided with combination nut 6 and flange 7 on the lead screw 5, flange 7 entangles the screens of lead screw 5 bottom, combination nut 6 is symmetrical all around to be provided with couple connecting plate 8, the engaging lug on the combination nut 6 is connected with couple connecting plate 8 through first bolt 10 respectively, the one end of couple connecting plate 8 is connected on the second bolt 11 at combination couple 9 middle part, the one end of combination couple 9 is connected with the engaging lug on the flange 7 through third bolt 12.

The working principle is as follows: the square sleeve 1 is connected with a drill rod of a rotary drilling rig, then the utility model is put down into a deep pile by utilizing the telescopic function of the drill rod of the rotary drilling rig, when the combined hook 9 at the bottom of the utility model touches the bottom of the deep pile or drops parts, the extension of the drill rod will encounter resistance, at the same time, the drill rod is controlled to extend and rotate at the same time to ensure that the combined hook 9 can hook the dropped parts, if the combined hook 9 hooks the dropped parts, the rotation of the combined hook 9 will be blocked, at the same time, the relative motion will occur between the rotating combined nut 6 and the screw rod 5, at the same time, the relative motion can lead the rotating combined nut 6 to move upwards along the screw rod 5, thereby leading the tail end of the combined hook 9 connected by the hook connecting rod 8 to move upwards, however, the motion can lead the combined hook 9 to make lever motion with the positioning flange 7, therefore, the front end of the combined hook 9 is contracted, in short, the combined hook 9 is contracted, and the hook can tightly catch the falling parts when being closed, so that the falling parts can be accurately brought.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a screw rod principle fishing device, includes the square cover of being connected (1) with the drilling rod of rotary drilling rig, its characterized in that: two opposite surfaces at the top of the connecting square sleeve (1) are respectively welded with a hanging ring (2), a square sleeve lower supporting plate (3) is arranged at the bottom of the connecting square sleeve (1), a screw rod (5) is arranged at the bottom of the square sleeve lower supporting plate (3), the screw rod (5) is provided with a combined nut (6) and a positioning flange (7), the positioning flange (7) is sleeved on the clamping position at the bottom of the screw rod (5), the hook connecting plates (8) are symmetrically arranged around the combined nut (6), the connecting lugs on the combined nut (6) are respectively connected with the hook connecting plate (8) through first bolts (10), one end of the hook connecting plate (8) is connected with a second bolt (11) in the middle of the combined hook (9), one end of the combined hook (9) is connected with a connecting lug on the positioning flange (7) through a third bolt (12).

2. A screw principle fishing device according to claim 1, characterized in that: the bottom of the connecting square sleeve (1) is fixedly connected with the screw rod (5) through the square sleeve lower supporting plate (3).

3. A screw principle fishing device according to claim 1, characterized in that: the screw rod (5) is in threaded connection with the combined nut (6).