Unlock instant, AI-driven research and patent intelligence for your innovation.

Breakage-preventing drilling bit

An anti-sabotage and drill bit technology, applied in drilling tools, drilling equipment, earth-moving drilling, etc., can solve problems such as incorrect drilling, excessive drilling depth, and target damage.

Active Publication Date: 2012-10-03
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the drilling position and drilling depth are usually determined with the help of the previous pipeline construction drawings, the drill bit is often too deep or the position is incorrect when drilling, so that the drill bit touches the target part, and the commonly used drill bit They are all metal drill bits, which can easily destroy the target part

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Breakage-preventing drilling bit
  • Breakage-preventing drilling bit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] See figure 1 , figure 1 It is a structural schematic diagram of the drilling device of the present invention. As shown in the figure, the drilling device 10 of the present invention is used in the field of pipeline drilling, and includes a drill rod 11 , a drill bit (not shown in the figure) and a protection device 21 . Wherein, a part of the protection device 21 is sleeved on the drill pipe 11, and the other part is wrapped on the drill bit. The protection part 21 is a rubber part with certain toughness. When the drill bit encounters a hard object in the drilling process, The protection member 21 can play a certain buffering role, so that the drill bit will not directly contact objects such as pipes and cables. Specifically, the protective member 21 can be a rubber tube, which includes 4 layers of nylon rope, and the thickness D2 of the tube wall is preferably between 6-8 mm. In order to prevent the protection member 21 from falling off during the drilling process, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a breakage-preventing drilling device for the field of long-distance non-excavation pipe jacking construction, comprising a drilling rod, a drilling bit and a protector. The protector is fixed on the drilling rod, and at least a part of the protector covers the drilling bit. The protector is arranged on the drilling bit, thus the drilling bit can not directly act on a target object while drilling so as to prevent the breakage on the target object.

Description

technical field [0001] The invention relates to a drilling device, in particular to a drilling device capable of preventing damage to a target object. Background technique [0002] At present, in the construction of major urban projects, the wide application of long-distance trenchless pipe jacking construction technology requires that the three-dimensional positions of many major deep-buried pipelines can be accurately measured. In the process of engineering construction, bridges, pile foundations, tunnels, and pipeline top burial will all involve the positional relationship with the original existing pipelines. Before the construction of such projects, it is necessary to use certain means to survey and map the plane position and The depth of burial is to prevent damage to the original pipelines during the construction of new projects, especially for some major pipelines. Once engineering accidents occur, irreparable economic losses and adverse social impacts will be caused...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E21B12/00E21B12/04
Inventor 谢远成
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD