CN218271451U

CN218271451U - Undisturbed soil sampling and taking device

Info

Publication number: CN218271451U
Application number: CN202221991238.1U
Authority: CN
Inventors: 李银; 马海春; 张巨会; 曹媛; 孟运庭
Original assignee: Sinohydro Bureau 7 Co Ltd
Current assignee: Sinohydro Bureau 7 Co Ltd
Priority date: 2022-07-31
Filing date: 2022-07-31
Publication date: 2023-01-10
Anticipated expiration: 2032-07-31

Abstract

The utility model discloses a undisturbed soil sample geotome. Comprises an operating handle, a connecting body, a motor, a soil sampling cavity, a spiral cutter and a drill bit; the motor is fixed on a shell bracket, the upper end of the shell bracket is connected with the operating handle through a connecting body, and a rotating shaft of the motor is connected with the soil taking cavity cover through the connecting body; the soil sampling cavity is a separable cylindrical container formed by mutually buckling two identical half cylinders, an upper opening is screwed and sealed through a spiral soil sampling cavity cover, a bottom opening is arranged at the periphery of the cylindrical container, a drill bit with a tooth-shaped structure is arranged at the periphery of the cylindrical container, and a spiral cutting knife is fixedly welded on the peripheral wall of the soil sampling cavity and can be separated along with a soil sampling cavity main body. The components of the soil sampler of the utility model are connected by screw thread, which is convenient for disassembly, assembly, cleaning, storage and replacement; the cylindrical structure of the drill bit and the soil taking cavity can be used for taking undisturbed soil without disturbing the middle cylindrical soil layer; the soil unloading process includes the steps of screwing the drill bit and the soil taking cavity cover to be screwed off, opening the soil taking cavity and directly unloading an original soil sample.

Description

Undisturbed soil sampling soil sampler

Technical Field

The utility model belongs to the technical field of the construction tool design, a be used for geotechnical engineering ground original state soil sample geotome is related to.

Background

In geotechnical engineering geological exploration and exploration work, a soil sampler is generally used for sampling to obtain an undisturbed soil sample close to nature to research the mechanical property index of foundation soil. The existing soil sampler has various types, a part of soil sampler sampling stratum is too shallow and inconvenient to sample in soil with higher compactness or harder soil, the part of soil sampler is thick and heavy and is not easy to carry, the operation is complex, and the disturbance to the surrounding soil body in the sampling process is large.

Disclosure of Invention

The utility model discloses a undisturbed soil sampling geotome. The utility model aims at providing a simple structure, convenient operation, be used for geotechnical engineering ground original state soil sample geotome.

The utility model provides a following technical scheme realizes:

the utility model provides an original state soil sample geotome which characterized in that: comprises an operating handle, a connecting body, a motor, a soil sampling cavity, a spiral cutter and a drill bit;

the motor is fixedly arranged on a shell bracket, the upper end of the shell bracket is connected with the operating handle through a connecting body of a cylindrical structure which can be disassembled through threads, and a rotating shaft of the motor is connected with the soil taking cavity cover through the connecting body of the cylindrical structure which can be disassembled through threads;

the soil sampling cavity is a separable cylindrical container formed by mutually buckling two identical semi-cylinders, an upper opening is screwed and sealed through a spiral soil sampling cavity cover, a bottom opening is arranged at the periphery of the cylindrical container, a drill bit with a tooth-shaped structure is arranged at the periphery of the cylindrical container, and a spiral cutting knife is fixedly welded on the peripheral wall of the cylindrical container of the soil sampling cavity.

The upper end face of the connecting body of the cylindrical structure is provided with an internal thread groove, and the lower end face of the connecting body of the cylindrical structure is provided with an external thread screw rod.

The spiral cutting knife is spirally arranged around the peripheral wall of the cylindrical container of the soil taking cavity.

The utility model discloses a geotome links together a plurality of parts of geotome through hookup body and threaded connection, forms a whole. The number of the connecting bodies can be determined as required to control the sampling depth, then the small-sized motor is started, and the drill bit and the soil sampling device are controlled to enter a soil layer through the operating handle to perform soil sampling work; the soil taking work is completed, and the soil taking device is easily carried to the next soil taking place after being disassembled.

After the soil sample is drilled and unloaded, the cover of the soil sampler and the drill bit are disassembled, the soil sampling cavity combined structure is opened, the soil sample is taken out, the soil is unloaded conveniently and simply, and the original structure of the soil sample is kept.

The utility model discloses profitability: the utility model discloses the original state soil sample geotome heliciform cutting sword equidistance is around on the geotome chamber, and can be along with the chamber main part that fetches earth parts. The hard metal material is selected, so that the soil sampler can enter the soil layer during soil sampling. All components of the connecting body and the soil sampler are connected through threads, so that the connecting body and the soil sampler are convenient to disassemble, assemble, clean, store and replace. The drill bit and the soil taking cavity are of hollow cylindrical structures, the drill bit and the soil taking cavity rotate along with the motor to take soil, and undisturbed soil taking can be carried out on the middle cylindrical soil layer as far as possible. When unloading soil, only need to unscrew the drill bit with the chamber lid spiral of fetching soil and take off, open the chamber of fetching soil, directly lift off the original state soil sample, greatly conveniently unload the work of soil.

Drawings

FIG. 1 is a schematic view of the soil sampler of the present invention;

FIG. 2 is a schematic view of the structure of the coupling body of the utility model;

fig. 3 is a schematic view of the semi-cylinder of the present invention.

In the figure: 1-operating handle, 2-connecting body, 3-motor, 4-soil-taking cavity cover, 5-soil-taking cavity, 6-spiral cutting knife and 7-drill bit.

Detailed Description

The present invention will be further described with reference to the following embodiments, which are intended to illustrate the principles of the present invention without limiting the present invention in any way, and the present invention is not beyond the scope of the present invention.

With reference to the attached drawings.

As shown in fig. 1, the utility model is used for geotechnical engineering ground original state soil sample geotome, include: the soil sampling device comprises an operating handle 1, a connecting body 2, a small motor 3, a soil sampling cavity 5, a spiral cutting knife 6 and a drill bit 7, wherein the upper end of the small motor 3 is connected with the operating handle 1 through the connecting body 2, the lower end of the small motor is connected with a soil sampling cavity cover 4 through the connecting body 2, the operating handle 1 is held by a hand, the small motor 3 is started to drive the soil sampling cavity 5 and the drill bit 7 to rotate to continuously go deep into a soil layer, and a soil sample enters a hollow cylinder of the soil sampling cavity 5 through the drill bit 7 to finish sampling.

The small-sized motor 3 can be used during charging, can be charged to store electric quantity, and can be started without a power supply. The connecting body 2 is connected with the soil taking cavity cover 4 and the operating handle 1, so that the soil taking device is convenient to disassemble, carry and store.

One end of the soil sampling cavity 5 is in threaded rotary connection with the drill bit 7, the bottom end of the drill bit 7 is in a sawtooth shape, and under the driving of the miniature motor 3, the outer ring soil body is disturbed by the spiral cutting knife 5 on the outer wall of the soil sampling cavity 5, so that the soil sampler can conveniently enter the soil layer. The drill bit 7 and the soil taking cavity 5 are both of hollow structures, so that soil samples are conveniently stored, the spiral cutting knife 5 and the drill bit 7 rotate to continuously go deep into a soil layer and cut the soil samples with the opening size equivalent to that of the soil taking cavity 5, and the soil samples enter the hollow cylinder of the soil taking cavity 5 through the drill bit 7 to finish sampling.

The following is right the utility model discloses drilling geotome's working method explains:

when the soil sampler is used for soil sampling, the depth of a soil layer to be sampled is firstly determined, the connecting body 2 with the required height is connected, then the small motor 3 is started, the operating handle 1 is held by hand to control the whole soil sampler to enter the soil layer for soil sampling, under the drive of the small motor 3, the spiral cutting knife 5 and the drill bit 7 rotate to continuously penetrate into the soil layer and cut a soil sample with the size equal to the opening of the soil sampling cavity 5, and the soil sample enters the hollow cylinder of the structure of the soil sampling cavity 5 through the drill bit 7 to finish sampling; after soil sampling is finished, a user lifts the soil sampler out of the soil layer through the operating handle 1, and then the soil sampler can be detached and conveniently carried to the next soil sampling place.

In order to conveniently unload the soil sample, as shown in fig. 3, the soil sampling cavity 5 is a hollow cylinder which can be opened and closed and can be divided into two semicircular arc plates to form a semi-cylinder, when the soil is unloaded, the soil sampling cavity cover 4 and the drill bit 7 are disassembled, and then the soil sampling cavity 5 is opened, so that the soil sample can be directly unloaded without damaging the soil body structure.

To facilitate the entry of the soil sample, helical cutting blades 6 are equally spaced around the soil sampling cavity 5 and are spaced apart as the main body of the soil sampler is separated.

For convenient daily equipment, dismantlement, washing and accomodating, the hookup body 2 and operating handle 1, small motor 3, hookup body 2 and borrowing the chamber lid 4, borrowing the chamber 5 and borrowing the chamber lid 4, drill bit 7 all are threaded connection.

In order to facilitate the work of the motor 3 for driving the drill bit 7 and the soil sampling cavity 5, the rotation directions of all the threads are consistent, and the rotation working direction of the motor 3 is consistent with the screwing rotation direction of the threads, so that the integral structure of the device is not damaged when soil sampling is carried out.

Claims

1. The utility model provides an undisturbed soil sample geotome which characterized in that: comprises an operating handle, a connecting body, a motor, a soil sampling cavity, a spiral cutter and a drill bit;

2. The undisturbed soil sampling geotome of claim 1 wherein: the upper end face of the connecting body of the cylindrical structure is provided with an internal thread groove, and the lower end face of the connecting body of the cylindrical structure is provided with an external thread screw rod.

3. The undisturbed soil sampling geotome of claim 1 wherein: the spiral cutting knife is spirally arranged around the circumferential wall of the cylindrical container of the soil taking cavity.