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Drilling device for building construction

A drilling device and construction technology, which is applied in the direction of drill pipe, drill pipe, drilling equipment, etc., can solve the problems of low drilling efficiency and inability to guarantee the verticality of the hole, and achieve the effect of improving the ease of use

Inactive Publication Date: 2016-08-03
李丽丽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a drilling device for building construction, which solves the problems that the verticality of the hole cannot be guaranteed and the drilling efficiency is low in the drilling process.

Method used

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  • Drilling device for building construction

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Embodiment Construction

[0018] figure 1 The drilling device for building construction shown includes a hollow drill rod 1 and a drill bit 2. The hollow drill rod 1 is connected to the drill bit 2. The surface of the drill bit 2 is provided with a number of spiral blades 3, and the hollow drill rod 1 is provided with a vertical The vertical degree sensor 4, the controller 5, and the alarm 6 are connected to the controller 5 respectively.

[0019] The drill bit 2 and the hollow drill rod 1 are detachably connected.

[0020] The detachable connection mode is threaded connection.

[0021] The end of the drill 2 is tapered with a taper of 30-45°.

[0022] The diameter of the upper end of the drill bit 2 is smaller than the diameter of the hollow drill rod 1.

[0023] The axis of the hollow drill rod 1 and the drill bit 2 are on the same straight line.

[0024] Since the surface of the drill bit 2 is provided with a number of spiral blades 3, the use of this structure can reduce the resistance of the drilling devic...

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Abstract

The invention relates to a drilling device for building construction. The drilling device comprises a hollow drill rod and a drill bit. The hollow drill rod is connected with the drill bit, a plurality of spiral blades are arranged on the surface of the drill bit, a verticality sensor, a controller and an alarm are arranged in the hollow drill rod, and the verticality sensor and the alarm are connected with the controller. The drilling device solves the problems that the verticality of holes can not be guaranteed in the drilling process, and drilling efficiency is low.

Description

Technical field [0001] The invention relates to a drilling device for building construction and belongs to the technical field of building engineering. Background technique [0002] Large buildings need a good foundation. The foundation forms include whole slab foundation and pile foundation. The whole slab foundation is not suitable for high-rise buildings due to the shallow foundation depth. The pile foundation is easy to construct due to its large foundation depth, strong bearing capacity, and high-rise buildings. There are many forms of pile foundation piles, including solid piles and hollow piles. There are prefabricated and cast-in-place, hollow piles include steel pipe piles and concrete prefabricated pipe piles. Many of them are countersunk bored piles and concrete prefabricated pipe piles. The pile must be placed in the construction by driving or pressing. underground. [0003] The cast-in-place pile system refers to a pile made by forming a pile hole in the foundation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04E21B17/00E21B44/00
CPCE21B7/04E21B17/00E21B44/00
Inventor 李丽丽
Owner 李丽丽
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