CN216950300U - Pile foundation drill bottom plate fishing device - Google Patents

Abstract

The utility model relates to the technical field of pile foundation drill bottom plate fishing equipment, and discloses a pile foundation drill bottom plate fishing device which comprises a drill rod connecting sleeve, wherein steering sleeves are fixedly connected to the lower parts of the left side and the right side of the drill rod connecting sleeve, the lower part of the drill rod connecting sleeve is connected with a central guide block through a drill rod connecting pin, a middle shaft sleeve is arranged on the outer wall of the drill rod connecting pin, outer cylinder protecting arms are rotatably connected to the two sides of the drill rod connecting sleeve, steering wheels are arranged at the top ends of the outer cylinder protecting arms, and bottom hooks are fixedly connected to the bottom ends of the outer cylinder protecting arms. According to the utility model, the centrifugal force generated by the rotation of the drill rod can open the outer side of the outer cylinder protection arm, the bottom hook sags and touches the bottom plate of the rotary bucket, the drill rod is lifted at a low speed, and then the rotary bucket is rotated for a half circle to enable the bottom hook to be retracted and grabbed, so that the bottom plate is fished up, a diver does not need to carry out launching and fishing operation, the safety of personnel is ensured, and the capital cost is also saved.

Description

Pile foundation drill bottom plate fishing device

Technical Field

The utility model relates to the technical field of pile foundation drill bottom plate fishing equipment, in particular to a pile foundation drill bottom plate fishing device.

Background

The drilling machine for pouring pile construction is also called rotary drilling machine, pile driver, rotary drilling machine is a comprehensive drilling machine, it can use several bottom layers, and has the characteristics of quick hole-forming speed, less pollution and strong maneuverability, etc., and the short spiral drill bit can be used for dry-digging operation, also can be used for wet-digging operation under the condition of slurry protecting wall, and the rotary drilling machine can be matched with hammer to drill and dig hole after breaking hard stratum, if it is matched with enlarged head drilling tool, it can implement reaming operation at hole bottom, and the rotary drilling machine adopts multilayer telescopic drilling rod, and its drilling auxiliary time is less, labour intensity is low, and it has no need of slurry circulation to discharge slag, and can save cost, so that it is specially suitable for basic construction of urban construction.

In the bored concrete pile work progress, drilling rod and drilling tool drill bit of the rotary excavating machine are key parts, the drilling rod, the drill bit, parts such as drill bit bottom plate are connected together through mechanical components, in a circulation process, the power head, the drilling rod, the drill bit, the rotary bucket floor and the connecting piece of each part are a continuous repeated loading action process, the force borne by each part comprises pressure, torque, tension, shearing force, supporting force, thrust, buoyancy and the like, all components can generate fatigue failure under the continuous repeated loading action, after the drilled hole reaches a certain depth, the drilled hole is influenced by geological conditions and complex underground environment, the drilling rod is easy to break, the drill bit drops, the drill bit bottom plate drops at the bottom of the hole, and the construction cannot be continued.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a pile foundation drill floor salvaging device.

In order to achieve the purpose, the utility model adopts the following technical scheme: pile foundation bores bottom plate fishing device, including the drill rod adapter sleeve, the equal fixedly connected with in side lower part turns to the cover about the drill rod adapter sleeve, the lower part of drill rod adapter sleeve is connected with central guide block through the drill rod connecting pin, be provided with well axle sleeve on the outer wall of drill rod connecting pin, the both sides of drill rod adapter sleeve are all rotated and are connected with the urceolus armguard, the top of urceolus armguard all is provided with the directive wheel, the equal fixedly connected with end hook in bottom of urceolus armguard, the equal fixedly connected with armguard axle in side lower part about the central guide block, the outer wall both ends of armguard axle all are provided with the armguard endotheca, the equal fixedly connected with sector gear in adjacent one side of outer wall of armguard endotheca, left side sector gear and right side the sector gear meshing is connected.

As a further description of the above technical solution:

and fixing holes are formed in the periphery of the upper side of the outer wall of the drill rod connecting sleeve.

As a further description of the above technical solution:

and the lower parts of the front side and the rear side of the drill rod connecting sleeve are provided with limiting holes.

As a further description of the above technical solution:

and the middle part of the top end of the drill rod connecting sleeve is provided with a mounting groove.

As a further description of the above technical solution:

the diameter of the arm protection shaft is consistent with the inner diameter of the arm protection inner sleeve.

As a further description of the above technical solution:

the diameter of the drill rod connecting pin is consistent with that of the connecting hole.

As a further description of the above technical solution:

one end of the steering wheel is connected to the inner wall of the steering sleeve in a sliding mode.

The utility model has the following beneficial effects:

according to the utility model, the outer cylinder guard arm can be opened towards the outer two sides by the centrifugal force generated by the rotation of the drill rod, after the bottom hook at the lower end of the outer cylinder guard arm sags and touches the bottom plate of the rotary bucket, the operator of the rotary drilling rig lifts the drill rod at a low speed and then rotates the drill rod in a half circle, so that the bottom hook at the lower end of the outer cylinder guard arm is retracted and grabbed, the bottom plate is fished up, the purpose of fishing can be finished without the underwater operation of a diver, various risks of casualties are avoided, the smooth construction of the engineering is guaranteed, and the capital cost is saved for the completion of the construction of the engineering.

Drawings

Fig. 1 is a perspective view of a pile foundation drill floor salvaging device provided by the utility model;

fig. 2 is a front side sectional view of the pile foundation drilling baseplate fishing device provided by the utility model;

fig. 3 is a side sectional view of the pile foundation drill floor salvaging apparatus proposed by the present invention;

fig. 4 is a schematic view of a drill pipe connecting sleeve of the fishing device for the pile foundation drill floor, which is provided by the utility model;

fig. 5 is a schematic center guide view of the fishing device for the pile foundation drill floor according to the present invention;

fig. 6 is a schematic diagram of a middle shaft sleeve of the pile foundation drill floor salvaging device provided by the utility model;

FIG. 7 is a schematic structural diagram of an outer cylinder guard arm of the fishing device for a pile foundation drill floor according to the present invention;

fig. 8 is a schematic view of a sector gear of the pile foundation drill floor salvaging device provided by the utility model;

fig. 9 is a schematic view of a drill rod connecting pin of the pile foundation drill floor salvaging device provided by the utility model;

fig. 10 is a schematic view of an outer wall shaft sleeve of the pile foundation drill floor salvaging device provided by the utility model;

fig. 11 is a schematic view of the arm guard shaft of the pile foundation drill floor salvaging device provided by the utility model.

Illustration of the drawings:

1. a drill rod connecting sleeve; 2. a middle shaft sleeve; 3. a central guide block; 4. an inner sleeve of the arm guard; 5. a steering wheel; 6. a sector gear; 7. a drill rod connecting pin; 8. a boom guard shaft; 9. an outer cylinder protection arm; 10. a bottom hook; 11. a limiting hole; 12. connecting holes; 13. a fixing hole; 14. mounting grooves; 15. a steering sleeve.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-11, one embodiment of the present invention is provided: a pile foundation drill base plate fishing device comprises a drill rod connecting sleeve 1, the fishing device can be connected with a drill rod through the drill rod connecting sleeve 1, the lower parts of the left side and the right side of the drill rod connecting sleeve 1 are fixedly connected with steering sleeves 15, the inner walls of the steering sleeves 15 are of arc structures, the lower part of the drill rod connecting sleeve 1 is connected with a central guide block 3 through a drill rod connecting pin 7, arm protection shafts 8 on the two sides can be fixed through the central guide block 3, a middle shaft sleeve 2 is arranged on the outer wall of the drill rod connecting pin 7, the two sides of the drill rod connecting sleeve 1 are rotatably connected with outer cylinder arm protection arms 9, the outer sides of the outer cylinder arm protection arms 9 are of the arc structures, the top ends of the outer cylinder arm protection arms 9 are respectively provided with a steering wheel 5, the outer cylinder arm protection arms 9 can be guided to be opened and tightened through the steering wheels 5, the bottom ends of the outer cylinder arm protection arms 9 are respectively and fixedly connected with a bottom hook 10, the lower parts of the left side and the right side of the central guide block 3 are respectively and fixedly connected with the arm protection shafts 8, the outer wall both ends of armguard axle 8 all are provided with armguard endotheca 4, the equal fixedly connected with sector gear 6 in the adjacent one side of outer wall of armguard endotheca 4, and left side sector gear 6 is connected with the meshing of right side sector gear 6, can restrict the degree of freedom that end hook 10 opened through sector gear 6.

All be provided with fixed orifices 13 around the drilling rod adapter sleeve 1 outer wall upside, can make drilling rod adapter sleeve 1 and drilling rod be connected more firmly and firmly by letting fixing bolt pass fixed orifices 13, drilling rod adapter sleeve 1 front and back side lower part all is provided with spacing hole 11, can restrict the upper and lower displacement of center guide block 3 through spacing hole 11, the middle part on drilling rod adapter sleeve 1 top is provided with mounting groove 14, the drilling rod can be connected with drilling rod adapter sleeve 1 through mounting groove 14, the diameter of armguard axle 8 is unanimous with the inside diameter of armguard endotheca 4, the diameter of drilling rod connecting pin 7 is unanimous with the diameter of connecting hole 12, the one end sliding connection of directive wheel 5 is on the inner wall of steering sleeve 15.

The working principle is as follows: firstly, the engine system of the rotary drilling rig provides operation power, then the power provided by the engine is transmitted to the power head through the hydraulic system, torque is transmitted to the drill rod under the rotation drive of the power head, the bottom plate salvaging device is arranged at the lower end of the drill rod, meanwhile, the pressurizing force provided by the pressurizing cylinder is transmitted to the bottom plate salvaging device through the drill rod, the centrifugal force generated by the rotation of the drill rod enables the outer cylinder protective arm 9 to be opened towards the outer two sides, the bottom hook 10 at the lower end of the outer cylinder protective arm 9 is opened to the maximum under the action of gravity and centrifugal force of the salvaging device and simultaneously probes and grabs downwards, the bottom hook 10 at the lower end of the outer cylinder protective arm 9 is dropped to touch the bottom plate of the rotary bucket and stops rotating, an operator of the rotary drilling rig lifts the drill rod slowly and rotates half a circle in a slow speed, the outer cylinder protective arm 9 is pushed by the tangential action force and the reaction force of a fluid, so that the bottom hook 10 at the lower end is grabbed inwards, the bottom hook 10 clamps the rotary bucket bottom plate and then lifts the drill rod, a hinge mechanism consisting of a steering sleeve 15, a steering wheel 5, a middle shaft sleeve 2 and an outer cylinder protection arm 9 is used, the clamping force of the bottom hook 10 is larger when the lifting force of the drill rod is increased, the opening freedom degree of the bottom hook 10 can be limited under the action of the sector gear 6, finally, the bottom plate fishing device which finishes grabbing is retracted through lifting the drill rod, the fishing work of the rotary bucket bottom plate is finished, the bottom plate fishing device solves the problem that 'engineering divers' do not need to carry out water operation, the fishing purpose can be finished, various casualties risks are avoided, the smooth construction of engineering is guaranteed, the capital cost is saved for the construction completion of the engineering, and contribution is made to social and economic construction.

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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (7)

1. Pile foundation bores bottom plate fishing device, including drilling rod adapter sleeve (1), its characterized in that: the lower parts of the left side and the right side of the drill rod connecting sleeve (1) are fixedly connected with steering sleeves (15), the lower part of the drill rod connecting sleeve (1) is connected with a central guide block (3) through a drill rod connecting pin (7), a middle shaft sleeve (2) is arranged on the outer wall of the drill rod connecting pin (7), outer cylinder guard arms (9) are rotatably connected to both sides of the drill rod connecting sleeve (1), steering wheels (5) are arranged at the top ends of the outer cylinder protecting arms (9), bottom hooks (10) are fixedly connected at the bottom ends of the outer cylinder protecting arms (9), the lower parts of the left side and the right side of the central guide block (3) are fixedly connected with arm protecting shafts (8), the two ends of the outer wall of the arm protecting shaft (8) are respectively provided with an arm protecting inner sleeve (4), the adjacent side of outer wall of armguard endotheca (4) all fixedly connected with sector gear (6), left side sector gear (6) and right side sector gear (6) meshing connection.

2. The pile foundation drill floor salvaging device of claim 1, characterized in that: and fixing holes (13) are formed in the periphery of the upper side of the outer wall of the drill rod connecting sleeve (1).

3. The pile foundation drill floor salvaging device of claim 1, wherein: the lower parts of the front side and the rear side of the drill rod connecting sleeve (1) are provided with limiting holes (11).

4. The pile foundation drill floor salvaging device of claim 1, wherein: the middle of the top end of the drill rod connecting sleeve (1) is provided with a mounting groove (14).

5. The pile foundation drill floor salvaging device of claim 1, wherein: the diameter of the arm protection shaft (8) is consistent with the inner diameter of the arm protection inner sleeve (4).

6. The pile foundation drill floor salvaging device of claim 1, wherein: the diameter of the drill rod connecting pin (7) is consistent with that of the connecting hole (12).

7. The pile foundation drill floor salvaging device of claim 1, characterized in that: one end of the steering wheel (5) is connected to the inner wall of the steering sleeve (15) in a sliding manner.

Images