Simple rotary drilling bit fishing device

Abstract

The utility model relates to the technical field of building pile foundation construction, and discloses a simple rotary drilling bit fishing device which comprises a pile machine drill bit and a connecting piece arranged at the bottom of the pile machine drill bit. Two fan-shaped plates are symmetrically arranged at the bottom of the connecting piece, the two fan-shaped plates are transversely arranged, a cylinder is fixed to the bottoms of the two fan-shaped plates, a plurality of dismounting holes are formed in the outer wall of the cylinder, the heights of the dismounting holes relative to the bottom of the cylinder are consistent, and the dismounting holes are evenly formed along the outer wall of the cylinder at intervals; the bottom of the inner side of the cylinder is provided with a plurality of iron blocks, the iron blocks are divided into three layers, the height of the iron block on the top layer is not larger than that of the dismounting holes, the device can fix a drill bit through friction force, the drill bit is lifted to the ground after being fixed, and after being lifted, fishing work is completed through the dismounting holes in the periphery and gaps in the top; manual diving into a hole for operation is not needed, other large equipment is not needed, a pile machine can be directly used as a power source, and good safety and practicability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building pile foundation construction, in particular to a simple rotary drill bit salvaging device. Background Art

[0002] At present, rotary bored piles have been widely used in the foundation engineering of housing construction, municipal engineering, highway engineering and other projects, and the supporting rotary bored piles are also widely used. In the past construction, the drill bit of the rotary bored pile fell off during the drilling process, resulting in "drill drop" often occurring. It is expensive to use professional tools to salvage the tools. At the same time, large equipment is limited by the site and needs to be fixed before salvaging. Although the salvage speed is fast, the preliminary preparation work and the subsequent restoration of the working conditions require a long time. Sending professional divers for salvage is extremely dangerous and generally cannot be easily adopted. Therefore, how to salvage safely and economically is the starting point of this patent. Utility Model Content

[0003] The present application provides a simple rotary drilling drill bit salvage device to solve the problems of high drill bit salvage cost and poor operation safety in the prior art.

[0004] In order to solve the above technical problems, the present application provides a simple rotary drilling drill bit salvage device, comprising: a pile driver drill bit and a connecting piece arranged at the bottom of the pile driver drill bit; two fan-shaped plates are symmetrically arranged at the bottom of the connecting piece, and the two fan-shaped plates are arranged horizontally. A cylinder is fixed to the bottom of the two fan-shaped plates, and the outer wall of the cylinder is provided with multiple disassembly holes, and the multiple disassembly holes are consistent in height relative to the bottom of the cylinder. The multiple disassembly holes are evenly spaced along the outer wall of the cylinder, and multiple iron blocks are provided at the bottom inside the cylinder. The multiple iron blocks are arranged in three layers, and the height of the iron block in the top layer is not higher than the height of the disassembly hole.

[0005] In some embodiments of the present application, the connecting member includes a connecting sleeve fixed to the bottom of the pile driver drill bit, a connecting handle arranged at the bottom of the connecting sleeve, and a pin arranged between the connecting sleeve and the connecting handle, and the connecting handle and the connecting sleeve are both provided with mounting holes, the connecting handle extends into the connecting sleeve, and the pin is used to limit the displacement between the connecting handle and the connecting sleeve.

[0006] In some embodiments of the present application, the height of the cylinder is 1000 mm, the outer diameter of the cylinder is 570 mm, and the inner diameter of the cylinder is 550 mm.

[0007] In some embodiments of the present application, the iron blocks are evenly spaced at 12 positions along the circumference of the inner wall of the cylinder.

[0008] In some embodiments of the present application, the spacing distance between the iron blocks in vertically adjacent layers is 50 mm.

[0009] In some embodiments of the present application, a stiffening rib plate is welded between the connecting handle and the fan-shaped plate.

[0010] In some embodiments of the present application, a gap is provided between the two sector plates.

[0011] Compared with the prior art, the present invention has the following features and beneficial effects:

[0012] The utility model fixes the pile driver drill bit and the fan-shaped plate by a connecting piece to form a simple rotary drilling drill bit salvage device, does not need to use special large-scale salvage equipment, and personnel do not need to dive into the hole to operate, thereby ensuring personnel safety, simple operation, low training and use costs, simple structure, economical and applicable, and can directly use the pile driver as a power source without having to purchase additional equipment. The utility model is convenient and efficient, has a low production cost, and can produce better results if promoted and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the cylindrical structure of an embodiment of the utility model;

[0015] Figure 3 It is a schematic top view of a sector plate according to an embodiment of the present invention.

[0016] In the figure, 100, pile driver drill bit; 200, connecting part; 210, connecting sleeve; 220, connecting handle; 230, pin; 300, sector plate; 400, cylinder; 410, disassembly hole; 420, iron block; 500, stiffening rib plate; 600, notch. DETAILED DESCRIPTION

[0017] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0019] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0021] like Figure 1-3 As shown, according to some embodiments of the present application, a simple rotary drilling drill bit salvage device includes: a pile driver drill bit 100 and a connecting member 200 arranged at the bottom of the pile driver drill bit 100; two fan-shaped plates 300 are symmetrically arranged at the bottom of the connecting member 200, and the two fan-shaped plates 300 are arranged horizontally. A cylinder 400 is fixed to the bottom of the two fan-shaped plates 300, and the outer wall of the cylinder 400 is provided with a plurality of disassembly holes 410. The plurality of disassembly holes 410 are consistent in height relative to the bottom of the cylinder 400, and the plurality of disassembly holes 410 are evenly spaced along the outer wall of the cylinder 400. A plurality of iron blocks 420 are provided at the bottom inner side of the cylinder 400, and the plurality of iron blocks 420 are arranged in three layers, and the height of the top layer of iron blocks 420 is not higher than the height of the disassembly holes 410.

[0022] According to some embodiments of the present application, the connecting member 200 includes a connecting sleeve 210 fixed to the bottom of the pile driver drill bit 100, a connecting handle 220 arranged at the bottom of the connecting sleeve 210, and a pin 230 arranged between the connecting sleeve 210 and the connecting handle 220. Both the connecting handle 220 and the connecting sleeve 210 are provided with mounting holes, the connecting handle 220 extends into the connecting sleeve 210, and the pin 230 is used to limit the displacement between the connecting handle 220 and the connecting sleeve 210.

[0023] According to some embodiments of the present application, the height of the cylinder 400 is 1000 mm, the outer diameter of the cylinder 400 is 570 mm, and the inner diameter of the cylinder 400 is 550 mm.

[0024] According to some embodiments of the present application, twelve iron blocks 420 are evenly spaced along the circumference of the inner wall of the cylinder 400 .

[0025] According to some embodiments of the present application, the spacing distance between the iron blocks 420 of vertically adjacent layers is 50 mm.

[0026] According to some embodiments of the present application, a stiffening rib plate 500 is welded between the connecting handle 220 and the sector plate 300 .

[0027] According to some embodiments of the present application, a gap 600 is provided between the two sector plates 300 .

[0028] According to some embodiments of the present application, the fan-shaped plate 300 is 1 / 4 circle, the iron block 420 is circular, the iron block 420 is welded on the cylindrical hollow iron plate, and the iron block 420 is evenly welded on the cylindrical hollow iron plate. It is set at 30° and the drill bit is fixed by friction. After fixation, it is lifted to the ground. After lifting, the disassembly holes around and the top gap are used to complete the salvage work.

[0029] The jackhammer of the present invention is provided with a plurality of holes, and the holes are connected to each other with a plurality of holes respectively, and the holes are connected with the jackhammer to form a plurality of holes.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A simple rotary drilling drill bit salvage device, comprising: A pile driver drill bit (100) and a connecting piece (200) arranged at the bottom of the pile driver drill bit (100); characterized in that two fan-shaped plates (300) are symmetrically arranged at the bottom of the connecting piece (200), the two fan-shaped plates (300) are arranged horizontally, a cylinder (400) is fixed to the bottom of the two fan-shaped plates (300), the outer wall of the cylinder (400) is provided with a plurality of disassembly holes (410), the plurality of disassembly holes (410) are consistent in height relative to the bottom of the cylinder (400), the plurality of disassembly holes (410) are evenly spaced along the outer wall of the cylinder (400), a plurality of iron blocks (420) are provided at the bottom inside the cylinder (400), the plurality of iron blocks (420) are arranged in three layers, and the height of the iron block (420) in the top layer is not higher than the height of the disassembly holes (410).

2. A simple rotary drilling drill bit salvaging device according to claim 1, characterized in that: The connecting member (200) comprises a connecting sleeve (210) fixed to the bottom of the pile driver drill bit (100), a connecting handle (220) arranged at the bottom of the connecting sleeve (210), and a pin (230) arranged between the connecting sleeve (210) and the connecting handle (220). Both the connecting handle (220) and the connecting sleeve (210) are provided with mounting holes. The connecting handle (220) extends into the connecting sleeve (210). The pin (230) is used to limit the displacement between the connecting handle (220) and the connecting sleeve (210).

3. A simple rotary drilling drill bit salvaging device according to claim 1, characterized in that: The height of the cylinder (400) is 1000 mm, the outer diameter of the cylinder (400) is 570 mm, and the inner diameter of the cylinder (400) is 550 mm.

4. A simple rotary drilling drill bit salvaging device according to claim 1, characterized in that: The iron blocks (420) are evenly spaced and arranged at 12 positions along the circumferential direction of the inner wall of the cylinder (400).

5. A simple rotary drill bit salvaging device according to claim 1, characterized in that: The spacing distance between the iron blocks (420) of vertically adjacent layers is 50 mm.

6. A simple rotary drilling drill bit salvaging device according to claim 2, characterized in that: A stiffening rib plate (500) is welded between the connecting handle (220) and the sector plate (300).

7. A simple rotary drill bit salvaging device according to claim 1, characterized in that: A gap (600) is provided between the two sector plates (300).

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