CN214616435U

CN214616435U - Automatic fishing equipment for pore-forming

Info

Publication number: CN214616435U
Application number: CN202120329221.9U
Authority: CN
Inventors: 石海越; 龙佳林; 许文英; 樊敬亮; 谭敬
Original assignee: Zhuhai Junhao Geotechnical Technology Co ltd
Current assignee: Zhuhai Junhao Geotechnical Technology Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-11-05
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses an automatic fishing device for pore-forming, which comprises a hollow outer cylinder and an annular fixed seat, wherein the upper end of the outer cylinder is provided with a joint for butting with a drill rod of a drilling machine, the lower end of the outer cylinder is opened, and the lower end of the outer cylinder is fixed with the fixed seat; a vertical hydraulic cylinder is arranged in the outer cylinder, a cylinder body of the hydraulic cylinder is fixed with the outer cylinder, and a piston rod of the hydraulic cylinder sequentially penetrates through an opening of the outer cylinder and a central hole of the fixing seat downwards; the bottom end of the piston rod is provided with a movable seat, and at least two groups of symmetrical clamping assemblies are arranged between the movable seat and the fixed seat; each group of clamping components comprises an upper hinge rod, a grapple, a lower hinge rod and a linkage rod, wherein the inner end of the upper hinge rod is fixed on the fixed seat, the outer end of the upper hinge rod is hinged with the upper end of the grapple, the inner end of the lower hinge rod is fixed on the movable seat, the outer end of the lower hinge rod is hinged with the inner end of the linkage rod, and the middle section of the grapple is hinged with the outer end of the linkage rod. The equipment does not need manual launching and fishing, and is safe and convenient to operate.

Description

Automatic fishing equipment for pore-forming

Technical Field

The utility model relates to a foundation pile pore-forming construction technical field, specific automatic equipment of salvaging downthehole foreign matter or bold boulder during bored concrete pile pore-forming construction that says so.

Background

The cast-in-place pile is a common foundation pile form, and the construction steps are roughly as follows: the drilling machine is in place at the foundation pile, holes are formed, the mud protective wall is adopted at the same time until the drilling reaches the elevation of the bottom of the hole, then the hole cleaning operation of the forward circulation or the reverse circulation is carried out, then the reinforcement cage is placed downwards, the guide pipe is inserted downwards, the hole cleaning operation of the forward circulation or the reverse circulation is carried out by utilizing the guide pipe and the mud, and finally the concrete is poured.

In the process of forming a hole in a foundation pile, a large boulder is frequently found in the path range of hole forming drilling, or a steel wire rope is broken due to careless operation, metal fatigue and the like, so that accidents that a drill bit, an impact hammer head, a conduit and the like fall into the hole are caused, and a so-called foreign matter in the hole is formed. The boulder or foreign matters in the hole generally need to be taken out of the hole, otherwise, the hole can only be abandoned without next construction. At present, for the boulder or the foreign matter, a diver is generally dispatched to launch and salvage the boulder or the foreign matter, the foreign matter or the boulder is tied by a rope under water, and then the foreign matter or the boulder is hoisted out of an orifice by a crane. However, the above treatment method has the following defects: firstly, the cost is high, and the cost for single salvaging of divers is usually about 2 ten thousand; moreover, more importantly, because the environment in the hole is complex, the visibility is low, and the hole wall and the hole depth are unstable, the diving operation risk degree is high, and the life safety of divers is threatened. Moreover, in some occasions, as the aperture is too small, such as not more than 550mm, diving personnel cannot dive at all, or as the construction stratum is soft, or the crane is difficult to move to the aperture due to the restriction of the site terrain of a construction site, the crane cannot be lifted at all; therefore, the foundation pile drawing can be changed again only through a design institute to change into the position of the foundation pile, so that the process, power consumption and cost of pore-forming in the early stage are completely wasted, the design cost is increased, and the stress support stability and the service life of a building (structure) can be influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a need not artifical offal and salvages, the automatic salvage equipment of pore-forming safe convenient operation.

The technical solution of the utility model is to provide an automatic fishing equipment for pore-forming, which comprises a hollow outer cylinder and an annular fixed seat, wherein the upper end of the outer cylinder is provided with a joint for butt joint with a drill rod of a drilling machine, the lower end of the outer cylinder is opened, and the lower end of the outer cylinder is fixed with the fixed seat; a vertical hydraulic cylinder is arranged in the outer cylinder, a cylinder body of the hydraulic cylinder is fixed with the outer cylinder, and a piston rod of the hydraulic cylinder sequentially penetrates through an opening of the outer cylinder and a central hole of the fixing seat downwards; the bottom end of the piston rod is provided with a movable seat, and at least two groups of symmetrical clamping assemblies are arranged between the movable seat and the fixed seat; each group of clamping components comprises an upper hinge rod, a grapple, a lower hinge rod and a linkage rod, wherein the inner end of the upper hinge rod is fixed on the fixed seat, the outer end of the upper hinge rod is hinged with the upper end of the grapple, the inner end of the lower hinge rod is fixed on the movable seat, the outer end of the lower hinge rod is hinged with the inner end of the linkage rod, and the middle section of the grapple is hinged with the outer end of the linkage rod.

Compared with the prior art, the automatic fishing equipment for hole forming has the following advantages.

Firstly, analyzing the working process of the equipment: fixing the equipment to the lower end of a drill rod of a drilling machine, particularly a rotary drilling machine, by using a joint, then sinking the drill rod to enable the equipment to sink into the position below the slurry liquid level in a hole, driving a hydraulic cylinder to enable a piston rod to press a movable seat downwards, and further enabling a lower hinge rod of each group of clamping assemblies to push an interlocking rod and a grapple outwards, namely, to prop up each grapple; the hydraulic cylinder is driven reversely, the piston rod is lifted, and then all the grapples can be folded, so that the hook grapples hold foreign matters or large boulders in the hole, then the drill rod is lifted by the rotary drilling rig, and the foreign matters or the large boulders in the hole are salvaged out of the hole.

According to the analysis, the device realizes the function of automatically salvaging foreign matters or large boulders in the hole; the salvage cost of diving personnel is saved, more importantly, the potential safety hazard of manual salvage is avoided, and the safety of personnel is ensured; moreover, the device can prepare corresponding clamping assemblies according to the aperture, is not restricted by the aperture, and can salvage the counter bore even if the aperture size is small, moreover, the device utilizes the existing drilling machine in the process of forming the aperture, does not need to send a crane for hoisting, avoids the embarrassment that the crane cannot reach the aperture due to the limitation of the field, and saves the platform cost of the crane; and because the device can salvage in the stake hole of various sizes, so need not to do useless and fall the stake hole, need not more like prior art change design drawing, change stake position, practiced thrift this partial design cost naturally, also avoided the waste of pore-forming process and consumption earlier stage.

Preferably, a lower flange plate is arranged at an opening at the lower end of the outer barrel and is in threaded connection with the top surface of the fixed seat; the upper end of the cylinder body of the hydraulic cylinder is provided with an upper flange which is in threaded connection with an upper end plate of the outer cylinder; like this, the device convenient assembling only needs to be with the pneumatic cylinder spiro union at urceolus upper end plate to with urceolus and fixing base spiro union can, and the pneumatic cylinder protection is inside the urceolus, more durable.

Preferably, the bottom surface of the lower flange plate is provided with pits which correspond to the clamping assemblies one by one, and each pit is internally provided with a pressure sensor which is abutted against the top surface of the fixed seat; the above structure realizes the following functions: when the device is opened and covers the boulder or the foreign matter, resistance is generated, the resistance is acted on the fixed seat through the grapple and the upper hinge rod, so that the fixed seat generates a trend of upward lifting, the trend can be accurately sensed by the pressure sensor at the bottom surface of the lower flange plate, and the time for closing the grapple by each grapple is marked, so that the fishing efficiency and the automation degree of the device are improved; and the pressure sensor is arranged in the pit, so that the positioning of the pressure sensor is realized, and the protection effect is also realized.

Preferably, the side surface of the movable seat is provided with a bump, the bump is provided with a press switch, and when the movable seat is located at the upper limit, the press switch is abutted against the bottom surface of the fixed seat; therefore, after all the grapples are completely folded, the piston rod and the movable seat can reach the upper limit position, and at the moment, the press switch is abutted against the bottom surface of the fixed seat; in other words, if the piston rod can rise to the height for triggering the press switch, the fact that each grapple of the device can be completely folded is indicated, otherwise, the fact that the grapple already grasps foreign matters or boulders and cannot be folded is indicated, and according to the indication, the foreign matters or boulders are fished out of the opening. Therefore, the defects that the sight line in the hole is poor and whether the target object is clamped or not can not be accurately judged are overcome.

Drawings

Fig. 1 is the structure schematic diagram of the automatic pore-forming fishing device of the utility model when opening.

Fig. 2 is a schematic structural view of fig. 1 with the outer cylinder removed.

Fig. 3 is an enlarged schematic structural view of the outer cylinder of the automatic fishing equipment for pore-forming of the present invention.

Fig. 4 is a schematic structural view of the automatic pore-forming fishing device of the present invention when it is closed.

The device comprises an outer cylinder 1, an outer cylinder 2, a fixed seat 3, a joint 4, a hydraulic cylinder 5, a movable seat 6, an upper hinge rod 7, a grapple 8, a lower hinge rod 9, a linkage rod 10, a lower flange plate 11, an upper flange plate 12, a pressure sensor 13, a bump 14, a press switch 15, a hinge shaft 16 and a pit.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1 to 4, the automatic fishing device for hole forming of the present invention comprises a hollow outer cylinder 1 and an annular fixing seat 2. The upper end of the outer cylinder 1 is provided with a square sleeve type joint 3 for butt joint with a drill rod of a drilling machine, and the drilling machine is preferably a rotary drilling machine and can provide sufficient descending or lifting acting force for the fishing equipment.

The lower end of the outer cylinder 1 is opened, and the lower end of the outer cylinder 1 is fixed with the fixed seat 2; specifically, a lower flange 10 protruding radially outwards is arranged at an opening at the lower end of the outer barrel 1, and the lower flange 10 is in threaded connection with the top surface of the fixed seat 2.

A vertical hydraulic cylinder 4 is arranged in the outer cylinder 1, specifically, an upper flange 11 is arranged at the upper end of the cylinder body of the hydraulic cylinder 4, and the upper flange 11 is in threaded connection with an upper end plate of the outer cylinder 1. A piston rod of the hydraulic cylinder 4 sequentially penetrates through an opening at the lower end of the outer barrel 1 and a central hole of the fixed seat 2 downwards; the bottom end of the piston rod is provided with a movable seat 5.

At least two groups of symmetrical clamping components are arranged between the movable seat 5 and the fixed seat 2; the four groups are uniformly distributed along the circumferential direction of the movable seat 5.

Each group of clamping components comprises an upper hinge rod 6, a grapple 7, a lower hinge rod 8 and a linkage rod 9, wherein the inner end of the upper hinge rod 6 is fixed on the side surface of the fixed seat 2, the outer end of the upper hinge rod 6 is hinged with the upper end of the grapple 7, the inner end of the lower hinge rod 8 is fixed on the movable seat 5, the outer end of the lower hinge rod 8 is hinged with the inner end of the linkage rod 9, a hinge shaft 15 is arranged in the middle section of the grapple 7, and the hinge shaft 15 in the middle section of the grapple 7 is hinged with the outer end of the linkage rod 9.

The bottom surface of the lower flange 10 is provided with four pits 16 corresponding to the clamping assemblies one by one, namely, the bottom surface of the lower flange 10 of the embodiment is provided with four pits 16, each pit 16 is internally provided with one pressure sensor 12, and the pressure sensors 12 are abutted against the top surface of the fixed seat 2.

The side of the movable seat 5 is provided with a convex block 13, the convex block 13 is provided with a press switch 14, and when the movable seat 5 is located at the upper limit, the press switch 14 is abutted against the bottom surface of the fixed seat 2.

As is known in the art, the apparatus is provided with a main controller such as a PLC chip, the hydraulic cylinder 4 is in signal connection with the main controller, and each of the pressure sensors 12 and the push switches 14 is in signal connection with the main controller, such as via signal lines.

Claims

1. The utility model provides an automatic salvage equipment of pore-forming which characterized in that: the drilling machine comprises a hollow outer cylinder (1) and an annular fixed seat (2), wherein a joint (3) for butting with a drill rod of a drilling machine is arranged at the upper end of the outer cylinder (1), the lower end of the outer cylinder (1) is opened, and the lower end of the outer cylinder (1) is fixed with the fixed seat (2); a vertical hydraulic cylinder (4) is arranged in the outer cylinder (1), the cylinder body of the hydraulic cylinder (4) is fixed with the outer cylinder (1), and a piston rod of the hydraulic cylinder (4) downwards sequentially penetrates through an opening of the outer cylinder (1) and a center hole of the fixed seat (2); the bottom end of the piston rod is provided with a movable seat (5), and at least two groups of symmetrical clamping assemblies are arranged between the movable seat (5) and the fixed seat (2); each group of clamping components comprises an upper hinge rod (6), a grapple (7), a lower hinge rod (8) and a linkage rod (9), the inner end of the upper hinge rod (6) is fixed on the fixed seat (2), the outer end of the upper hinge rod (6) is hinged with the upper end of the grapple (7), the inner end of the lower hinge rod (8) is fixed on the movable seat (5), the outer end of the lower hinge rod (8) is hinged with the inner end of the linkage rod (9), and the middle section of the grapple (7) is hinged with the outer end of the linkage rod (9).

2. The automated fishing equipment for forming holes according to claim 1, wherein: a lower flange plate (10) is arranged at an opening at the lower end of the outer barrel (1), and the lower flange plate (10) is in threaded connection with the top surface of the fixed seat (2); an upper flange (11) is arranged at the upper end of the cylinder body of the hydraulic cylinder (4), and the upper flange (11) is in threaded connection with an upper end plate of the outer cylinder (1).

3. The automated fishing equipment for forming holes according to claim 2, wherein: the bottom surface of the lower flange plate (10) is provided with pits (16) corresponding to the clamping components one by one, each pit (16) is internally provided with a pressure sensor (12), and the pressure sensors (12) are abutted to the top surface of the fixed seat (2).

4. The automated fishing equipment for forming holes according to claim 2, wherein: the side surface of the movable seat (5) is provided with a convex block (13), the convex block (13) is provided with a press switch (14), and when the movable seat (5) is positioned at the upper limit, the press switch (14) is abutted against the bottom surface of the fixed seat (2).