CN210685908U - Rotary drilling bit fisher - Google Patents
Rotary drilling bit fisher Download PDFInfo
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- CN210685908U CN210685908U CN201921422182.6U CN201921422182U CN210685908U CN 210685908 U CN210685908 U CN 210685908U CN 201921422182 U CN201921422182 U CN 201921422182U CN 210685908 U CN210685908 U CN 210685908U
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Abstract
The utility model relates to the technical field of civil engineering construction auxiliary assembly, in particular to a rotary drilling bit fisher, including base and two fishing hooks, the connector of base top surface, the connector lateral wall is equipped with the fixed orifices, still include bulldozing piece and spring, the base bottom surface left and right sides all is provided with two bearing frames, the fishing hook top articulates between two bearing frames, the fishing hook bottom is outwards crooked to form the gib head, the gib head bottom surface is by the downward sloping setting of hook point to hook bottom, two fishing hooks set up each other dorsad, bulldoze one end and this round pin axle cooperation are installed in bearing frame one side, and bulldoze piece and fishing hook fixed connection, the bulldozing piece other end articulates with spring first end, and the spring second end is connected on the base; the fishing hook is of a straight-edge structure and is obliquely arranged from the top end to the bottom end; the fishing hook can rotate around the pin shaft, and the hook head of the fishing hook can be tightly buckled on the inner side wall of the drill bit interface of the rotary drilling machine. The utility model discloses can self-holding drill bit, take out the drill bit from the stake hole fast.
Description
Technical Field
The utility model relates to a civil engineering auxiliary assembly technical field, in particular to dig drill bit fisher soon.
Background
The cast-in-place pile system is a pile formed by forming a pile hole in foundation soil through mechanical drilling, steel pipe soil extrusion or manual excavation and the like on an engineering site, placing a reinforcement cage in the pile hole and pouring concrete into the pile hole. At present, mechanical drilling is usually carried out by using a rotary drilling machine, and in the drilling process of the rotary drilling machine, the drill bit can inevitably fall into a pile hole due to the breakage or falling of a drill rod pin, the breakage of a drill bit square sleeve, the breakage of a drill rod square head, the breakage of a core and the like, and the conventional treatment method comprises the following steps: 1. under the condition that the party A allows, after the sediments are treated, a diver can be hired to dive to the position of the dropped drill bit and hang a steel wire rope, so that the drill bit can be salvaged by the method, but the cost is higher; 2. pumping water after the long pile casing is used for following the drill bit position, and fishing people after all water is pumped out, so that the method has long period and influences the construction progress; 3. the drill bit is directly broken by the impact drill, and the cost is increased by adopting the method; 4. the common fisher can be used for fishing, the manufacture is simple and crude, the use is inconvenient, and the fishing efficiency is low. If the authorized bulletin number is CN 202706971U's drill bit fisher, it includes base plate, oil pipe, two pothooks, two piston rods and two hydro-cylinders, inject hydraulic oil to the hydro-cylinder through oil pipe, hydraulic oil pressure promotes the piston rod and outwards stretches out and make the inside motion of pothook chucking drill bit. Although this drill bit fisher can salvage the drill bit, nevertheless because the mode through manual injection hydraulic oil presss from both sides tight drill bit, clamping structure is comparatively complicated, and is convenient inadequately when using.
SUMMERY OF THE UTILITY MODEL
To the technical problem that exists, an object of the utility model is to provide a can self-holding drill bit, with the device that the drill bit was taken out from the stake hole fast in order to solve above-mentioned problem, it has simple structure, convenient to use's advantage.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a rotary drilling bit fisher comprises a base and two fishing hooks arranged on the base, wherein a connecting port used for connecting a drill rod is arranged on the top surface of the base, a fixing hole used for fixing the drill rod is formed in the side wall of the connecting port, a pushing piece and a spring are further included, two bearing seats are arranged on the left side and the right side of the bottom surface of the base, pin holes are formed in the bearing seats, the top ends of the fishing hooks are hinged between the two bearing seats in a matched mode through pin shafts and pin holes, the bottom ends of the fishing hooks are outwards bent to form hook heads, the bottom surfaces of the hook heads are downwards inclined from hook tips to hook bottoms, the two fishing hooks are arranged oppositely, one end of the pushing piece is matched with the pin shaft and mounted on one side of the bearing seats, the pushing piece is fixedly connected with; the fishing hook is of a straight-edge structure, so that the fishing hook can be inserted into a drill bit interface of the rotary drilling machine; the fishing hooks are obliquely arranged outwards from the top end to the bottom end, so that a gap is formed between the hook heads of the two fishing hooks, and the hook heads can be inwards extruded by the side wall of the drill bit interface of the rotary excavator when the fishing hooks are inserted into the drill bit interface of the rotary excavator; the fishing hook can rotate around the pin shaft to ensure that the hook head of the fishing hook expands outwards or contracts inwards, and the hook head of the fishing hook can be tightly fastened on the inner side wall of the drill bit interface of the rotary drilling machine under the action of the restoring force of the spring.
Preferably, the first end of the spring is connected with a pressure plate, the bottom surface of the pressure plate is provided with a boss, and the boss is hinged with the pushing and pressing piece.
Preferably, the inner shape of the base connecting port is matched with the outer shape of the lower end of the rotary excavating machine drill rod, so that the rotary excavating machine drill rod is inserted into the connecting port.
Preferably, the shape of the position of the base fixing hole corresponds to that of a side hole at the lower end of the drill rod of the rotary drilling machine, and the base fixing hole is used for inserting a bolt to fix the drill rod of the rotary drilling machine.
Preferably, the spring is a compression spring.
Preferably, the outer edge of the fishing hook is provided with a notch.
Preferably, the distance between the hook head and the bottom surface of the base is larger than the distance between the opening of the drill bit interface and the side opening in the middle of the opening.
To sum up, the utility model discloses following beneficial effect has:
1. the fishing hook is of a straight-edge structure, so that the fishing hook can be inserted into a drill bit interface of the rotary drilling machine to play a role in positioning and guiding the fishing device, and the fishing hook is obliquely arranged from the top end to the bottom end of the fishing hook, so that hook heads of the fishing hook form intervals; the fishing hook is provided with a pushing piece, a bearing seat and a spring, when the fishing hook is inserted into the drill bit of the rotary excavator, the hook head is inwards extruded by the inner side wall of the drill bit of the rotary excavator, the hook head is inwards contracted, the fishing hook rotates, and then the hook head of the fishing hook is outwards expanded and fastened to the inner side wall of the drill bit interface of the rotary excavator under the action of the restoring force of the spring by virtue of the pushing piece compressing the spring; the top surface of the base is provided with a connecting port for connecting a drill rod, and the side wall of the connecting port is provided with a fixing hole for fixing the drill rod, so that the fisher can be directly arranged on the drill rod; compared with the prior art have the location guide function, can take out the drill bit from the stake hole fast, reduce the cost of salvaging simultaneously.
2. The inner shape of the connecting port is matched with the outer shape of the lower end of the drill rod of the rotary drilling machine, the position shape of the fixed hole corresponds to the side hole in the lower end of the drill rod of the rotary drilling machine, so that the fisher can be accurately and quickly installed on the drill rod of the rotary drilling machine, and the time is saved.
3. The outer edge of the fishing hook is provided with the notch, so that the hook head can be easily buckled into the side opening of the drill bit interface.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic side view of the present invention;
fig. 3 is a schematic front structural view of the present invention.
The reference numbers are 1-base, 2-fishing hook, 21-hook head, 211-hook tip, 212-hook bottom, 3-bearing seat, 4-pushing piece, 41-side plate, 42-pressing block, 5-boss, 6-spring, 7-pressing plate, 8-connecting port, 81-fixing hole, 9-drill rod, 91-side hole, 10-drill bit interface and 101-side port.
Detailed Description
The following description will be made in detail with reference to the accompanying drawings and specific embodiments of the present invention.
Referring to fig. 1, 2 and 3, the utility model provides a rotary excavating drill bit fisher, including base 1, two fishing hooks 2 arranged on the base, pushing and pressing piece 4 and spring 6, the top surface of base 1 is provided with square connecting port 8 for connecting the drill rod, the side wall of connecting port 8 is provided with circular fixing hole 81 for fixing the drill rod, the internal shape of connecting port 8 is adapted to the external shape of the lower end of the drill rod of the rotary excavating machine, so that the drill rod of the rotary excavating machine is inserted into the connecting port; the fixing hole 81 is positioned and shaped to correspond to the side hole 91 at the lower end of the drill pipe 9 of the rotary drilling machine for inserting a plug (not shown) to fix the drill pipe 9 of the rotary drilling machine.
The left side and the right side of the bottom surface of the base 1 are respectively provided with two bearing seats 3, the left side and the right side of the bottom surface of the base 1 are respectively the left side and the right side of the bottom surface of the base shown in figure 3, the bearing seats 3 are provided with pin holes, the top ends of the fishing hooks 2 are matched and hinged between the two bearing seats 3 through pin shafts and the pin holes, the bottom ends of the fishing hooks 2 are outwards bent to form hook heads, and the two fishing hooks 2 are arranged; bulldoze 4 one end and this round pin axle cooperation and install in bearing frame 3 one side, and bulldoze 4 and salvage hook 2 fixed connection, bulldoze 4 other ends and the articulated and 6 second end connection of spring of 6 first ends of spring on the base.
Preferably, spring 6 is the pressure spring, and 6 first ends of spring are connected with circular pressure disk 7, and pressure disk 7 bottom surface is equipped with the cuboid boss, and boss 5 is articulated with bulldozing 4. The pushing and pressing piece comprises a side plate 41 and a pressing block 42, one end of the side plate 41 is installed on one side of the bearing seat 3 in a matched mode through a pin shaft, the side plate 41 is welded with the fishing hook 2, the pressing block 42 is welded to the other end of the side plate 41, the pressing block 42 is hinged to the boss 5, the top face of the boss 5 is welded with the bottom face of the pressure plate, the top face of the pressure plate is connected with a first end of a spring, and the.
The fishing hook 2 is of a straight-edge structure, so that the fishing hook 2 can be inserted into the drill bit interface 10 of the rotary drilling machine; the outer edge of the fishing hook is provided with a notch, so that the hook head can be easily buckled into a side opening of the drill bit interface; the fishing hooks 2 are obliquely arranged from the top end to the bottom end outwards, so that a gap is formed between the hook heads 21 of the two fishing hooks, and the hook heads 21 can be inwards extruded by the side wall of the drill bit interface 10 of the rotary excavating machine when the fishing hooks are inserted into the drill bit interface 10 of the rotary excavating machine; the hook head is in an inverted triangle shape, and the bottom surface of the hook head is arranged from the hook tip 211 to the hook bottom 212 in a downward inclined mode to play a guiding role; in the unclamped state, the length of the inner wall of the drill bit interface 10 is greater than or equal to the distance between the two hook bottoms 212 and less than the distance between the two hook tips 211.
The fishing hook 3 can swing in the mounting groove to enable the fishing hook head 5 to be opened outwards or contracted inwards, the fishing hook head 5 can clamp the rotary excavating machine drill bit under the action of the spring, the fishing hook 2 can rotate around the pin shaft to enable the fishing hook head 21 to be expanded outwards or contracted inwards, and the fishing hook head 21 can be fastened on the inner side wall of the rotary excavating machine drill bit connector 10 under the restoring force of the spring 6.
Preferably, the distance between the hook head and the bottom surface of the base is larger than the distance between the opening of the drill bit interface and the side opening in the middle of the opening.
The utility model provides a dig drill bit fisher application method soon as follows:
in the work progress, when the dig soon machine drill bit falls stake hole bottom because of the reason with the drilling rod separation, at first insert drilling rod 9 the utility model provides an in the connector 8 of drill bit fisher, pass the side opening 91 that fixed orifices 81 and drilling rod 9 lower extreme correspond with the pin (not shown in the figure) again, link together drilling rod and fisher from this.
The drilling rod 9 of the rotary excavating machine drives the fisher to downwards probe along the pile hole until the fisher is contacted with the falling drill bit interface 10, then the position of the drilling rod 9 is adjusted, two straight-edge fishing hooks 2 of the fisher are aligned to the drill bit interface 10 and can continue to downwards probe, in the later downwards probing process, the straight-edge fishing hooks 2 are inserted into the drill bit interface 10, hook heads 21 of the two straight-edge fishing hooks 2 are inwards extruded by the side wall of the drill bit interface 10, and under the action of the restoring force of a spring, the hook heads of the fishing hooks are outwards expanded and buckled on the inner side wall of the drill bit interface; when the hook head 21 extends downwards to the position of the side opening 101 of the side wall of the drill bit interface 10, the hook heads 21 of the two straight-edge fishing hooks 2 lose the extrusion effect of the side wall of the interface, the compression spring 6 recovers deformation, the pressure plate 7 is pushed to move downwards under the recovery action force of the compression spring 6, the pushing piece and the shaft are pushed to rotate the straight-edge fishing hook 2, so that the two hook heads 21 are outwards expanded and buckled into the drill bit side opening 101, and the drill bit can be firmly fastened; the drill rod 9 is then lifted upwards until the drill bit is lifted out of the pile hole.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a dig drill bit fisher soon, includes base and two fishing hooks that set up on the base, the base top surface is equipped with the connector that is used for connecting the drilling rod, the connector lateral wall is equipped with the fixed orifices that is used for fixed drilling rod, its characterized in that: the fishing hook is characterized by further comprising a pushing piece and a spring, two bearing seats are arranged on the left side and the right side of the bottom surface of the base, pin holes are formed in the bearing seats, the top end of the fishing hook is hinged between the two bearing seats in a matched mode through a pin shaft and the pin holes, the bottom end of the fishing hook is outwards bent to form a hook head, the bottom surface of the hook head is downwards inclined from a hook tip to the hook bottom, the two fishing hooks are arranged in a mutually opposite mode, one end of the pushing piece is installed on one side of the bearing seats in a matched mode through the pin shaft, the pushing piece is fixedly connected with the fishing hook, the other end of the pushing piece is hinged; the fishing hook is of a straight-edge structure, so that the fishing hook can be inserted into a drill bit interface of the rotary drilling machine; the fishing hooks are obliquely arranged outwards from the top ends to the bottom ends, so that a gap is formed between the hook heads of the two fishing hooks, and the hook heads can be inwards extruded by the side wall of the drill bit interface of the rotary excavator when the fishing hooks are inserted into the drill bit interface of the rotary excavator; the fishing hook can rotate around the pin shaft to enable the hook head of the fishing hook to expand outwards or contract inwards, and the hook head of the fishing hook can be tightly fastened on the inner side wall of the drill bit interface of the rotary drilling machine under the action of the restoring force of the spring.
2. The rotary drilling bit fisher according to claim 1, wherein: the first end of spring is connected with the pressure disk, the pressure disk bottom surface is equipped with the boss, the boss is articulated with bulldozing the piece.
3. The rotary drilling bit fisher according to claim 1, wherein: the inner shape of the base connecting port is matched with the appearance shape of the lower end of the rotary excavating machine drill rod, so that the rotary excavating machine drill rod is inserted into the connecting port.
4. The rotary drilling bit fisher according to claim 1, wherein: the shape of the position of the base fixing hole corresponds to that of a side hole at the lower end of the rotary excavating machine drill rod, and the base fixing hole is used for inserting a bolt to fix the rotary excavating machine drill rod.
5. The rotary drilling bit fisher according to claim 1, wherein: the spring is a pressure spring.
6. The rotary drilling bit fisher according to claim 1, wherein: the outer edge of the fishing hook is provided with a notch.
7. The rotary drilling bit fisher according to claim 1, wherein: the distance between the hook head and the bottom surface of the base is greater than the distance between the opening of the drill bit interface and the side opening in the middle of the drill bit interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921422182.6U CN210685908U (en) | 2019-08-29 | 2019-08-29 | Rotary drilling bit fisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921422182.6U CN210685908U (en) | 2019-08-29 | 2019-08-29 | Rotary drilling bit fisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210685908U true CN210685908U (en) | 2020-06-05 |
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ID=70885473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921422182.6U Active CN210685908U (en) | 2019-08-29 | 2019-08-29 | Rotary drilling bit fisher |
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| Country | Link |
|---|---|
| CN (1) | CN210685908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775311A (en) * | 2021-09-23 | 2021-12-10 | 北京三一智造科技有限公司 | Fishing device and operation machine |
| CN114439404A (en) * | 2022-01-24 | 2022-05-06 | 重庆运满机械设备有限公司 | Drill bit fisher of rotary drilling rig |
-
2019
- 2019-08-29 CN CN201921422182.6U patent/CN210685908U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775311A (en) * | 2021-09-23 | 2021-12-10 | 北京三一智造科技有限公司 | Fishing device and operation machine |
| CN113775311B (en) * | 2021-09-23 | 2023-09-26 | 北京三一智造科技有限公司 | Fishing device and working machine |
| CN114439404A (en) * | 2022-01-24 | 2022-05-06 | 重庆运满机械设备有限公司 | Drill bit fisher of rotary drilling rig |
| CN114439404B (en) * | 2022-01-24 | 2023-01-24 | 重庆运满机械设备有限公司 | Drill bit fisher of rotary drilling rig |
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