Combined type hand-cranking twist drill pulling tool and drilling pulling method thereof
A kind of twist drill and composite technology, which is applied in the direction of drilling tools, drill pipes, drill pipes, etc., can solve problems such as difficulty in pulling out, and achieve the effects of convenient portability, improved drilling efficiency and quality, and simple operation
Active Publication Date: 2021-04-13
中国电建集团江西省电力设计院有限公司
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a composite hand twist drill pulling tool and its drilling and pulling method for the problem of difficulty in pulling out during the drilling process of the existing hand twist drill
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Embodiment Construction
[0024] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and examples.
[0025] refer to Figure 1 ~ Figure 2 As shown, a composite hand twist drill extraction tool according to the present invention includes a detachable base 1, a threaded hollow steel pipe 2, a fixed steel nail 3, a clamping structure 4, and a clamping structure control switch handle 5 , steel handle 6, hollow casing 7, drill pipe 8, twist drill 9, supporting drill pipe 10; the threaded hollow steel pipe 2 is connected with the steel handle 6 through the fixed steel nail 3, and the threaded hollow steel pipe 2 can be The steel nail 3 rotates up and down around the steel handle 6 at the center of the circle, and the detachable base 1 is threadedly connected with the threaded hollow steel pipe 2. Vertical to the ground, the detachable base 1 is used as a fulcrum for lifting; the steel handle 6 has a groove in the front part for con...
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The invention discloses a combined type hand-cranking twist drill pulling tool and a drilling pulling method thereof. The combined type hand-cranking twist drill pulling tool at least comprises a detachable base, a threaded hollow steel pipe, a fixing steel nail, a clamping structure, a clamping structure control switch handle, a steel handle, a drill rod and a twist drill, wherein the threaded hollow steel pipe is connected to the steel handle through the fixing steel nail, the threaded hollow steel pipe rotates up and down around the steel handle with the steel nail as the circle center, the detachable base is in threaded connection with the threaded hollow steel pipe, a groove is formed in the middle of the steel handle, the upper end of the drill rod is clamped in the groove position through a clamping structure, the clamping structure control switch handle is used for controlling the clamping structure to be screwed down and loosened, and the lower end of the drill rod is welded and fixed with the twist drill. According to the combined type hand-cranking twist drill pulling tool and the drilling pulling method thereof, drilling and pulling processes are combined for use, the problem that a rotating device on the upper portion of a drill rod needs to be disassembled when the drill rod is added to a traditional twist drill every time is solved, the drilling period is shortened, a large amount of manpower is saved, and the drilling efficiency and quality are remarkably improved.
Description
technical field [0001] The invention relates to the technical field of geotechnical engineering investigation and drilling for power transmission lines, in particular to a composite hand twist drill extraction tool and a drilling and extraction method thereof. Background technique [0002] The geotechnical engineering survey of transmission lines is an important part of the survey of the power industry. The stability of transmission line towers is the basic condition to ensure the normal operation of overhead transmission lines. Considering the terrain and landforms where the towers are located, the type of towers, and the required foundation depth , drilling cost and other factors, currently in the geotechnical engineering investigation of transmission lines, the most widely used drilling tool is still the most primitive hand twist drill. [0003] In the actual drilling operation, with the increase of the drilling depth and the change of the strength of the underground soil...
Claims
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IPC IPC(8): E21B11/00E21B12/00E21B17/042
CPCE21B11/005E21B12/00E21B17/042
Inventor 段谟东许思龙程铁洪蔡冻黄磊张久龙王海飞
Owner 中国电建集团江西省电力设计院有限公司