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Manual pipe bit

A tube drilling and artificial technology, applied in the direction of drill pipe, drill pipe, casing, etc., can solve the problems of difficulty in taking soil, unfavorable for the smooth development of engineering geological survey, and limitation of the depth of exploration, and achieves portability and use. , the effect of strong practicability

Inactive Publication Date: 2013-08-07
GUANGDONG PROVINCE COMM PLANNING & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the Luoyang shovel also has the following disadvantages in the process of engineering survey and use: when excavating in cohesive soil, if it encounters groundwater, it will be difficult to take soil due to the reduction of the friction between the soil and the inner wall of the shovel head. In addition, if a loose sand layer is encountered, it cannot be taken to the ground. Therefore, the depth of exploration is limited, which is not conducive to the smooth development of engineering geological investigation.

Method used

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Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, it is an artificial pipe drill of the present invention, which is mainly composed of a shovel head 1, a counterweight rod 2 and an extension rod 3. The counterweight rod 2 is made of a high-density metal material rod with a diameter of 6 cm. It is made of 4cm iron pipe. The front end of the counterweight rod 2 is welded to the shovel head 1, while the rear end of the counterweight rod 2 is screwed to the extension rod 3. There are several extension rods 3, and the rod ends of several extension rods 3 are respectively The extension rod is connected into one body through the threaded connection of the joint 5. The shovel head 1 is a cylindrical body with a closed rear end, which is cut from a core pipe used for drilling. The counterweight rod 2 is fixed on the rear end surface of the shovel head 1. The sampling port 11 of body sample, sampling port is a rectangular mouth, and aperture is larger, to facilitate sampling therefrom.

[0026] This ...

Embodiment 2

[0028] Such as figure 2 , 3 As shown, the difference between this embodiment and Embodiment 1 is that a cylindrical drill bit 4 is added on the shovel head 1, and the drill bit 4 is connected to the front port of the shovel head 1 through a detachable connection structure. Among them, the detachable connection structure adopts a threaded connection structure, specifically, the internal thread 41 provided at the rear port of the drill bit 4 is connected with the external thread provided at the front port of the shovel head 1 .

Embodiment 3

[0030] The difference between this embodiment (figure not shown) and embodiment 1 is: the drill bit in this embodiment is different from the structure of the drill bit in embodiment 1, based on the drill bit in embodiment 1, at the front port of the drill bit There is a cover piece for sealing the front port, the cover piece is hinged on the inner wall of the drill bit, along the circumference of the mouth of the front port of the drill bit, there is an inwardly bent flap, and the cover piece laps on the flap to realize sealing. Blocking.

[0031] The working process of this embodiment is: this embodiment is suitable for excavation and earth taking in loose sand layers. When excavating in the sand, the cover sheet is rotated by the thrust of the soil to open the front port of the drill bit, so that the sand enters the drill bit. When the shovel head is lifted up, the sand in the shovel head will squeeze the cover to make it close under its own gravity. Therefore, the sand in t...

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Abstract

The invention discloses a manual pipe bit which is mainly composed of a shovel head, a balance weight lever and a lengthening bar. The front end of the balance weight lever is connected with the shovel head, the rear end of the balance weight lever is connected with the lengthening bar, the shovel head is a barrel with a rear port sealed, the balance weight lever is fixed on the rear end face of the shovel head, and a side wall of the shovel head is provided with a sample taking port for taking out soil mass samples. The shovel head is the barrel and is simple in structure. Compared with a shovel head of an existing Luoyang shovel, due to the fact that area of the shovel head contacted with soil is increased and friction force between the soil and an inner wall of the shovel head is increased, underground soil mass can be taken up as much as possible, and the problem that the soil cannot be taken out easily once the Luoyang shovel is met with underground water is solved. The manual pipe bit is light and convenient to carry and use. After tunneled into the shovel head, the soil mass can be taken out through the sample taking port, and the manual pipe bit is simple to operate, large in tunneling depth and favorable for smooth development of engineering geologic investigation.

Description

technical field [0001] The invention relates to a simple exploration equipment for engineering geological exploration of shallow cohesive soil and sandy soil, in particular to an artificial pipe drill. Background technique [0002] In recent years, with the rapid development of engineering construction in mountainous areas (such as mountainous highways), survey tasks have gradually increased. Generally, simple exploration equipment can be used to find out engineering geological conditions in mountain depressions and simple strata. [0003] At present, the most commonly used simple exploration equipment is the Luoyang shovel. The Luoyang shovel is composed of a shovel head, a counterweight rod and an extension rod. The role of the javelin is like the front of the javelin, so that the shovel head is more accurate and powerful to dig deep into the soil layer. The front end of the counterweight rod is connected to the shovel head by welding, and the extension rod is connected t...

Claims

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Application Information

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IPC IPC(8): E21B17/00
Inventor 张金平李水清麦金盛邓超文张修杰王强胡浩
Owner GUANGDONG PROVINCE COMM PLANNING & DESIGN INST
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