阅读说明：本技术 一种螺杆原理打捞装置 (Screw principle fishing device ) 是由 王怀营 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种螺杆原理打捞装置,包括与旋挖钻机钻杆相连接的连接方套,所述连接方套顶部的两个对立面分别焊接有吊环,所述连接方套的底部设置有方套下托板,所述连接方套的底部通过方套下托板固定连接有丝杆。本发明对掉落零部件的打捞比以往的打捞技术更加安全,以往让人下去打捞的方式危险性极高,一旦人下去出现任何意外则会导致非常严重社会影响,使用本发明的装置,可以多次重复利用,其造价相对于请人工下去的价格较为便宜,而且本发明的打捞速度和准确性较高从而会使得工地的施工受影响的时间较短,这也会减少经济上的损失,本发明通过钻机的配合使用会使得打捞速度和准确性都较高。(The invention discloses a screw principle fishing device, which comprises a connecting square sleeve connected with a drill rod of a rotary drilling rig, wherein two opposite surfaces at the top of the connecting square sleeve are respectively welded with a hanging ring, a square sleeve lower supporting plate is arranged at the bottom of the connecting square sleeve, and a screw rod is fixedly connected with the bottom of the connecting square sleeve through the square sleeve lower supporting plate. The device can be repeatedly used for many times, the cost is lower than the cost of the device which requires manpower to go down, the fishing speed and the fishing accuracy are higher, so that the time for influencing the construction of a construction site is shorter, the economic loss is reduced, and the fishing speed and the fishing accuracy are higher through the matched use of the drilling machine.)

1. The utility model provides a screw rod principle fishing device, includes the square cover of being connected (1) with the rotary drilling rig drilling rod, rings (2) have been welded respectively to two opposite faces at connection square cover (1) top, the bottom of connecting square cover (1) is provided with square cover bottom plate (3), the bottom of square cover bottom plate (3) is provided with lead screw (5), be provided with combination nut (6) and flange (7) on lead screw (5), flange (7) entangle lead screw (5) bottom screens, combination nut (6) symmetry all around is provided with couple connecting plate (8), the engaging lug on 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 second bolt (11) at combination couple (9) middle part, the one end of combination couple (9) is connected with the engaging lug on flange (7) through third bolt (12), the one end of combination couple (9) is connected .

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).

Technical Field

The invention relates to the technical field of auxiliary appliances in a drilling construction process of a bored pile, in particular to a screw 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 invention has the advantages of great potential safety hazard and low success rate, and can quickly, accurately and safely salvage out the drill bit or the drill bit spare and accessory parts falling into the deep pile.

Disclosure of Invention

The invention aims to provide a screw principle fishing device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the 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 invention has the following beneficial effects:

the device can be repeatedly used for many times, the cost is lower than the cost of the device which requires manpower to go down, the fishing speed and the fishing accuracy are higher, so that the time for influencing the construction of a construction site is shorter, the economic loss is reduced, and the fishing speed and the fishing accuracy are higher through the matched use of the drilling machine.

Drawings

Fig. 1 is a schematic structural view 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 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.

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 connecting square sleeve 1 is connected with a drill rod of a rotary drilling rig, then the combined hook 9 at the bottom end of the combined hook is lowered into a deep pile by utilizing the telescopic function of the drill rod of the rotary drilling rig, when the combined hook 9 touches the bottom of the deep pile or a part falls off, the extension of the drill rod meets resistance, one side of the drill rod is controlled to extend and rotate at the same time so as to ensure that the combined hook 9 can hook the falling part, if the combined hook 9 hooks the falling part, the rotation of the combined hook 9 is blocked, at the moment, relative motion can occur between the rotating combined nut 6 and the screw rod 5, at the moment, the relative motion can enable the rotating combined nut 6 to move upwards along the screw rod 5, so that the tail end of the combined hook 9 connected through the hook connecting rod 8 also moves upwards, but the motion can enable the combined hook 9 to make lever motion with the positioning flange 7 as a fulcrum, 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.