Engineering drilling device

A drilling device and engineering 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 an engineering drilling device, which solves the problems that the verticality of the hole cannot be guaranteed and the drilling efficiency is low during the drilling process.

Method used

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  • Engineering drilling device

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Embodiment Construction

[0017] figure 1 The engineering drilling device shown includes a hollow drill rod 1, a connecting rod 2, and a drill bit 3, and the hollow drill rod 1, connecting rod 2, and drill bit 3 are connected sequentially from top to bottom, and the cross-sectional area of ​​the upper end of the connecting rod 2 is equal to that of the drill bit 3 , the outer side of connecting rod 2 is provided with several drill plates 4, and described hollow drill rod 1 is provided with verticality sensor 5, controller 6, alarm 7, and described verticality sensor 5, alarm 7 are respectively connected with controller 6 connections.

[0018] The drill bit 3 is threadedly connected with the connecting rod 2 .

[0019] The end of the drill bit 3 is tapered with a taper of 30-45°.

[0020] The axes of the hollow drill rod 1, the connecting rod 2 and the drill bit 3 are on the same straight line.

[0021] The drill plates 4 are evenly distributed on the outside of the connecting rod 2 .

[0022] Durin...

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Abstract

The invention relates to an engineering drilling device. The engineering drilling device comprises a hollow drill rod, a connecting rod and a drill bit. The hollow drill rod, the connecting rod and the drill bit are connected from top to bottom in sequence, the section area of the connecting rod is the same as that of the upper end of the drill bit, a plurality of drill plates are arranged on the outer side of the connecting rod, a perpendicularity sensor, a controller and an alarm are arranged in the hollow drill rod, and the perpendicularity sensor and the alarm are connected with the controller. The engineering drilling device solves the problems that in the drilling process, the perpendicularity of holes cannot be ensured, and the drilling efficiency is low.

Description

technical field [0001] The invention relates to an engineering drilling device, which belongs to the technical field of construction 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 because the depth of the foundation is too shallow. The pile foundation has a large foundation depth, strong bearing capacity, and easy construction, so high-rise buildings all use pile foundations. There are many types of piles in pile foundation, such as solid piles and hollow piles. There are prefabricated and cast-in-place piles. Hollow piles include steel pipe piles and concrete prefabricated pipe piles. Among them, countersinking piles and concrete prefabricated pipe piles are widely used. During construction, the piles must be placed on the ground by driving or pressing. underground. [0003] The cast-in-situ pile sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/04E21B17/00E21B44/00
CPCE21B17/04E21B17/00E21B44/00
Inventor 李丽丽
Owner 李丽丽
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