CN213812965U

CN213812965U - Hole clearing and soil taking device

Info

Publication number: CN213812965U
Application number: CN202023045822.1U
Authority: CN
Inventors: 何文龙; 李顺群; 程学磊; 张华洋; 侯英剑; 李丽君; 吴琼; 徐正
Original assignee: Tianjin Chengjian University
Current assignee: Tianjin Chengjian University
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-07-27
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a hole cleaning and soil taking device, which comprises a T-shaped handle, a dowel bar, a connecting rod, a hole cleaning and soil taking device and a detachable drill bit which are connected in sequence, wherein the whole drill rod can be lengthened by connecting a plurality of dowel bars; the connecting rod is connected with the hole cleaning and soil sampling device in a welding mode, the hole cleaning and soil sampling device is formed by welding an angle opening thin-wall cylinder and an annular cutting edge, and the end of the connecting rod at the bottom of the hole cleaning and soil sampling device is provided with threads and is used for being connected with a detachable drill bit; the detachable drill bit comprises three conditions of a conical smooth drill bit, a drill bit with a helical blade and a drill bit without according to different use scenes. The utility model has the advantages that the problem that the residual soil body at the bottom of the hole can not be effectively and thoroughly cleaned after the hole is formed is solved, and the hole cleaning quality is improved; the drill bit is disassembled and replaced according to different use scenes, so that the disturbance to the hole bottom can be reduced, the hole bottom can be ensured to be smooth, the hole forming quality is improved, and the construction error is reduced; this device still can be used to the high-quality sample of original state soil.

Description

Hole clearing and soil taking device

Technical Field

The utility model belongs to the technical field of the soil hole clearance instrument in the civil engineering construction, specifically be a clear hole device of fetching earth.

Background

In civil engineering, no matter pile foundation construction and freezing method construction, soil pressure test and monitoring and sponge city construction, hole forming construction operation is inevitably required to be carried out on a soil body. To a certain extent, the quality of the formed holes can determine the success or failure of the whole early construction, and the hole forming construction operation of major engineering is more and more emphasized by people. The appearance of a plurality of pore-forming tools improves the pore-forming operation efficiency of the soil body, and simultaneously, people begin to consider how to improve the pore-forming quality, thereby providing better guarantee for the actual engineering construction. However, the main factor influencing the quality of pore-forming is that residual accumulated soil at the bottom of a pore cannot be effectively and thoroughly cleaned, the traditional mechanical pore-cleaning device disturbs the soil greatly, the pore-cleaning degree is difficult to accurately grasp, and the pore-cleaning failure is easily caused.

Disclosure of Invention

To the problem, the utility model provides a clear hole device of fetching earth, the device can the artifical clear advantage in hole of full play, is the clear hole of an ideal and selects. When cleaning the hole, firstly, the device is stretched into the soil hole, the drill bit is penetrated into the soil body at the bottom of the hole to loosen the hard soil body, then the T-shaped handle is rotated, the hole cleaning soil sampler is driven to rotate through the dowel bar, accumulated soil at the bottom of the hole is collected by the annular cutting edges at the side surface and the bottom surface, and the accumulated soil is taken out of the bottom of the hole by utilizing the cylindrical space formed by the bottom surface and the side surface. When the preset depth of the hole is to be cleaned, the detachable drill bit at the bottom of the soil sampler is detached, and accumulated soil is collected only through the annular cutting edges at the side surface and the bottom surface. So, can not only the accurate clear hole degree of holding, can reduce clear hole device to the influence and the disturbance of soil body bottom soil body to the minimum moreover.

In order to solve the technical problem, the utility model discloses a technical scheme be: a hole cleaning and soil taking device comprises a T-shaped handle, a dowel bar, a connecting rod, a hole cleaning and soil taking device and a detachable drill bit which are sequentially connected, wherein the T-shaped handle, the dowel bar and the connecting rod are connected through threads; the detachable drill bit is selected from a conical smooth drill bit or a drill bit with a helical blade.

The hole cleaning and soil sampling device is obtained by cutting a 40-50-degree angle notch on the bottom surface and the side surface of a thin-wall cylinder, and is in the shape of an angle-opening thin-wall cylinder without an upper cover.

Furthermore, the bottom surface notch and the side surface notch of the hole cleaning soil sampler are provided with annular cutting edges with corresponding lengths, and the annular cutting edges face outwards and are respectively connected with the respective notches in a flush welding manner with the bottom surface and the side surfaces.

In addition, the bottom connecting rod end of clear hole geotome has the screw thread for connect can dismantle the drill bit, thereby can be according to different scenes clear hole geotome can with can dismantle the drill bit cooperation and use.

The utility model has the advantages that: compare in clear hole device of traditional machinery, this device not only can effectively thoroughly clear up the remaining long-pending soil in hole bottom, can keep the hole bottom soil body level and smooth at the clear hole in-process moreover, reduces the disturbance to the hole bottom soil body. In addition, the device can also be used for high-quality sampling of undisturbed soil, and because the bottom surface and the side cutting edge are welded on the opening thin-wall cylinder, the sampling efficiency can be improved, the influence of a hole wall soil body on an undisturbed soil sample in the sampling process can be reduced, and the success rate of sampling is ensured.

Drawings

Fig. 1 is an overall schematic view of a hole cleaning and soil taking device of the present invention;

FIG. 2 is an effect diagram of the hole cleaning and soil sampling device of the present invention;

FIG. 3 is a detailed view of the hole cleaning and soil sampling device of the present invention;

fig. 4 is a top view of the hole cleaning and soil sampling device of the utility model.

Fig. 5 is an effect diagram of the utility model of a hole clearing and soil sampling device with a rotary blade drill bit.

In the figure:

1-T-shaped handle 2-dowel bar 3-thread connection

4-connecting rod 5-hole cleaning soil sampler 6-conical smooth drill bit

7-drill bit with helical blade 8-side annular cutting edge 9-bottom annular cutting edge

10-side wall 11 of hole cleaning soil sampler, inner cavity 12 of hole cleaning soil sampler, bottom of hole cleaning soil sampler

13-bit thread 14-bit rotating blade 15 bit tip

16-bit drill rod

Detailed Description

The invention will be described in further detail with reference to the following drawings and embodiments:

as shown in fig. 1 to 4, the utility model discloses a clear hole device of fetching earth, include T font handle 1, can dismantle dowel steel 2 and connecting rod 4, all connect through screw thread 3 between the above-mentioned three. The lower end of the connecting rod 4 is welded with a hole cleaning soil sampler 5, and threads connected with a conical drill bit 6 and a drill bit 7 with helical blades are reserved. As shown in fig. 3 and 4, the hole cleaning soil sampler 5 comprises a connecting rod 4 welded to the center of the bottom 12 of the hole cleaning soil sampler, a bottom blade 9 welded to the opening of the bottom 12 of the hole cleaning soil sampler, and a side blade 8 welded to the side wall 10 of the hole cleaning soil sampler, wherein the bottom 12 and the side wall 10 of the hole cleaning soil sampler jointly form an inner cavity 11 for temporarily storing soil accumulated at the bottom of the hole collected in the using process or soil samples collected during sampling. Fig. 5 shows a detail of the drill bit 7 with helical blades, comprising a thread 12 fixed to the connecting rod 4, a helical blade 13 welded to the drill rod 15 and a drill tip 14.

The utility model discloses a clear hole device of fetching earth concrete implementation method step as follows:

1. assembling the hole cleaning and soil taking device, assembling the T-shaped handle, the dowel bar and the connecting rod together through threads, and installing corresponding drill bits according to the condition of soil in the hole, namely selecting three conditions of a conical smooth surface drill bit, a drill bit with a helical blade or no drill bit by the drill bit according to the use scene;

2. cleaning holes, after primary hole forming is completed, extending the assembled hole cleaning soil sampler into the bottom of a soil hole, enabling a drill bit below the soil sampler to enter soil at the bottom of the hole, forcibly rotating the T-shaped handle to drive the hole cleaning soil sampler to rotate, collecting accumulated soil through an annular cutting edge of the hole cleaning soil sampler, collecting the accumulated soil in an inner cavity of the hole cleaning soil sampler until the inner cavity of the soil sampler does not enter the accumulated soil, taking out the soil sampler through a drill rod, pouring the accumulated soil in the soil sampler, extending the soil sampler into the soil hole again, and repeating the steps until the depth of the soil hole is close to the preset depth;

3. leveling the hole bottom, when approaching the preset depth of the soil hole, taking out the hole cleaning soil sampler through the drill rod, unloading the drill bit, leveling and cleaning the soil body at the hole bottom through the cutting edge at the bottom surface of the soil sampler until all the accumulated soil at the hole bottom is cleaned, stopping cleaning the hole and finishing the hole cleaning operation, wherein the hole cleaning operation is finished when the hole bottom is leveled and the soil accumulated soil is completely cleaned.

4. When the hole cleaning and soil sampling device is used for sampling, the using method is similar to the steps, the steps can be referred to, but attention needs to be paid to avoiding contacting the hole wall as much as possible when the soil sampler is taken out, and the taken soil sample is protected in time.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and modifications, substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and scope of the present invention are all included within the scope of the present invention.

Claims

1. The utility model provides a clear hole geotome which characterized by: the hole cleaning and soil sampling device comprises a T-shaped handle, a dowel bar, a connecting rod, a hole cleaning and soil sampling device and a detachable drill bit which are sequentially connected, wherein the hole cleaning and soil sampling device is welded at the bottom end of the connecting rod, and the end of the connecting rod at the bottom of the hole cleaning and soil sampling device is provided with threads for connecting the detachable drill bit; the detachable drill bit is a conical smooth drill bit or a drill bit with a helical blade.

2. A hole cleaning and soil sampling device according to claim 1, characterized in that: the hole cleaning and soil sampling device is obtained by cutting a 40-50-degree angle notch on the bottom surface and the side surface of a thin-wall cylinder, and is in a shape of an angle-opening thin-wall cylinder without an upper cover.

3. A hole cleaning and soil borrowing device according to claim 2, wherein: the bottom surface notch and the side surface notch of the hole cleaning soil sampler are provided with annular cutting edges with corresponding lengths, and the annular cutting edges face outwards and are respectively connected with the notches in a flush welding mode with the bottom surface and the side surface.

4. A hole cleaning and soil borrowing device according to claim 3, wherein: the bottom connecting rod end of the hole cleaning soil sampler is provided with threads.