CN205157230U - Portable rotary piston geotome - Google Patents

Abstract

A portable rotary piston soil fetcher, comprising a hollow outer tube and a piston shaft set inside the outer tube, the head end of the piston shaft has a piston head, the head end of the outer tube is fixed with an auger soil tube, the handle of the soil drill, and the connection of the outer tube Buckle, wherein the connecting buckle of the handle bar of the earth drill and the outsourcing outer pipe at the tail end is socketed with the steel pipe through the connecting thread. The outer tube and the piston shaft are composed of several components of the same size, the piston shafts are connected by threads, and the outer tube is connected by a connecting buckle. The soil fetching device can meet the soil fetching requirements of different angles, different heights, different positions, and different depths, and the device is easy to disassemble, assemble and carry. The invention solves the problems of inconvenient carrying of the existing soil fetcher and the need to take test soil samples in batches for many times, and has good popularization and use value.

Description

A portable rotary piston soil fetcher

technical field

The utility model relates to a test soil-taking device, which belongs to the field of geotechnical engineering exploration in civil engineering and the field of geological exploration in geological engineering.

Background technique

In the field of geotechnical engineering investigation in civil engineering, soil extractors are widely used in scientific research, teaching and production as a kind of auxiliary tool for soil analysis and sampling and soil test sampling. The earth-borrowing device commonly used in engineering is the ring knife, but with the advancement of science and technology, the ring alone cannot meet the requirements of scientific research and teaching, especially in the field of in-situ survey in the field. So there are some new earth-borrowing devices. But what have in those disclosed soil-taking devices applying for a patent is shallower, can not get soil deeply, and what have is limited by conditions, and what have is inconvenient to carry, and what have needs to get soil repeatedly. In order to solve the practical problems of unsatisfactory sampling, repeated operations, time-consuming and laborious, low efficiency, inconvenient carrying of soil samples, and inflexible use of conventional soil drills when taking soil on the spot, this patent focuses on the connection structure of soil drills and the way of soil drilling and soil extraction. After exploration and application, a portable rotary piston soil fetching device was obtained.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the existing technology and provide a simple structure, easy to carry, by manually rotating the soil fetcher, which can cut soil with high compaction degree, less disturbance to the surrounding soil, and can quickly remove the soil. The sample is taken out from the device, which is easy to carry and is suitable for portable rotary piston earth grabbers of different depths.

The purpose of this utility model is achieved through the following technical solutions:

A portable rotary piston soil fetcher is characterized in that it comprises a hollow outer tube and a piston shaft sleeved in the outer tube, and the length of the piston shaft is greater than that of the piston outer tube. The outer diameter of the piston shaft matches the inner diameter of the outer tube. The head end of described piston shaft is exactly piston head, and outer pipe head end is equipped with soil-taking pipe, and the inner diameter of soil-taking pipe is identical with the inner diameter size of outer pipe. The outer sides of the head ends of the piston head and the soil-taking pipe are provided with a spiral chip groove, and the front ends of the soil-taking pipe and the piston head are provided with cutting edges. The outer tube is provided with a limiting device that limits the upward and downward movement of the piston. There is a rotary handle at the tail end of the outer pipe, and the handle bar of the soil drill and the connecting rod of the outer pipe wrapped at the tail end are socketed with the steel pipe through connecting threads. The outer tube and the piston shaft consist of several members of the same size, each connected by threads.

The feature of the limiting device includes that the pin is arranged on the outer tube and arranged on the piston shaft to match the pin hole of the outer tube. The piston shaft is fixed with the outer tube through a pin. There is a limiting hole at the tail end of each section of the outer tube and the piston shaft.

The tail end of the piston shaft has a piston handle that prevents the piston shaft from slipping from the front end to injure people or damage the piston head when the soil fetcher is installed.

The connection between each section of the piston shaft is through threaded nesting to connect the near-soil end to the far-soil end, and the connection between each section of the outer tube is to connect the near-soil end and the far-soil end through thread and connection buckle nesting. end. The inner diameter of the outer tube at the cutting interface is consistent with the outer diameter of the connecting buckle, and the outer diameter of the piston shaft is consistent to facilitate the sliding of the piston shaft up and down.

The outer wall of each section of the outer tube is provided with scales to facilitate knowing the taken depth.

The connecting rod of the outsourcing outer pipe at the tail end and the tail end of each section of the outer pipe can be threaded together.

The length of each section of the outer tube and the piston shaft is about 900-1200mm. The inner diameter of the outer tube has 12 levels between 35mm, 40mm and 90mm. The outer diameter of the piston shaft is 1~2mm smaller than the inner diameter of the outer tube to facilitate the sliding of the piston shaft up and down.

Due to the adoption of the above scheme, the utility model fixes the outer tube and the piston shaft through the limiting device, so that the earth taker can be screwed into the designated position and ideal position. The piston head and the soil-taking pipe on the outer tube are combined to form a drill bit, and the outer tube can be manually rotated by the handle to cut the soil with high compaction degree or hard, and the waste soil is discharged through the chip groove. The device can acquire a plurality of soil samples of different depths at one time, which is simple and convenient and avoids the need to take soil in batches for many times. The soil obtained by utilizing the utility model does not need to be subpackaged at that time in the soil sampling area. It only needs to mark the soil tube completely and then bring the clearly marked outer tube back to the laboratory for subpackaging and testing of the soil sample, reducing the It eliminates the cumbersome process of collecting soil while subpackaging with the existing soil-taking pipe, and can increase the efficiency by 10% to 20%. The scale of the outer tube can be used to know the depth of the soil to be taken.

Description of drawings

Fig. 1 is the structural representation of the utility model earth-taking device.

Fig. 2 is a schematic diagram of the structure of the piston shaft of the utility model.

Fig. 3 is a schematic diagram of the structure of the outer tube part of the utility model.

Fig. 4 is a structural schematic diagram of the limiting device of the present invention.

Fig. 5 is a schematic diagram of the assembly structure of the piston head and the soil-taking pipe of the present invention.

Fig. 6 is a structural schematic diagram of the handle rod of the earth drill of the present utility model.

Fig. 7 is a schematic diagram of the outer tube structure and connection parts.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described further in detail.

See attached drawings 1~7. Step 1: Estimate the depth of soil extraction, and install the soil extraction device according to the depth of soil extraction. Now the piston shaft 5 with the piston handle 6 is connected with the piston shaft 3 by a rotating thread 10, and there can be multiple piston shafts 3. Then connect the piston shaft 1 with the piston head to the piston shaft 3.

Second step: connect the connecting buckle and the outer pipe 4 through the rotating thread 12, then connect several outer pipes 4 to the head end of the newly connected outer pipe through the connecting buckle 11, and finally connect the outer pipe 2 with the soil taking pipe 14 Connect to the head end of the outer tube 4.

Step 3: Put the connected outer tube on the piston shaft from the end with the connecting buckle to rotate and adjust the two tubes so that the limit holes on the two tubes are aligned, and then insert the pin into the limit hole at the end close to the connecting buckle fixed. The rotating handle 15 is connected and tightened with the connecting buckle by the thread 13. The device is connected.

Screw the soil fetching device into the designated soil layer through the rotating handle, then pull out the pin in the limit hole and continue screwing in the device downwards. At this time, the piston shaft does not move downward and the outer tube continues to move down. scale. Stop until the specified depth is reached.

At the beginning, do not connect the piston shaft 3 and the outer tube 4 a lot at one time, so as to prevent the rotary handle from being too high from the ground and inconvenient to use. You can remove the piston shaft 5 and the connecting buckle with the depth of screwing in, and then add the piston shaft 3 and the outer tube 4. Finally, install the removed one.

After fetching soil, reversely unscrew the soil fetching device and remove the device. Keep the soil sample in the outer tube, mark it, seal it, and take it back to the laboratory.

The above is a detailed introduction to the embodiments of the present invention. In this paper, specific examples are used to illustrate the implementation of the present invention. The description of the above embodiments is only used to help understand the core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the utility model, there will be changes in the specific implementation and application scope, and the contents of this specification should not be construed as limiting the utility model.

Claims (8)

1. a Portable rotary piston sample, is characterized in that: comprise hollow outer tube and be sleeved on the piston axle in described outer tube, the length of piston axle is greater than the length of described piston outer tube; The external diameter of described piston axle and the internal diameter of described outer tube match; The head end of described piston axle is exactly piston head, and outer tube head end is equipped with the pipe that fetches earth, and the internal diameter of the pipe that fetches earth is identical with the internal diameter size of outer tube; Be provided with spiral helicine chip pocket outside the head end of described piston head and the pipe that fetches earth, described in fetch earth pipe and the front end of piston head be provided with cutting edge; Described outer tube is provided with the stop means that limited piston moves up and down; The tail end of described outer tube has a rotary handle, and the connecting link of earth boring auger handlebar and tail end outsourcing outer tube is socketed by connecting thread and steel pipe; Outer tube and piston axle are by the component of several same size, and be threaded connection between piston axle, outer tube is connected by junction button.

2. Portable rotary piston sample according to claim 1, is characterized in that: described stop means feature comprises spacing hole and to be arranged on described outer tube and to be arranged on piston axle and match with outer tube pin-and-hole; Described piston axle is fixed by pin and outer tube; The end-position of every section of outer tube and piston axle has a spacing hole.

3. Portable rotary piston sample according to claim 2, is characterized in that: the tail end of piston axle has piston axle when preventing soil sample barrel from installing injure people by a crashing object from front end landing or make a mess of the piston handle of piston head.

4. Portable rotary piston sample according to claim 3, is characterized in that: often save outer tube and between connection be all hold by screw thread and junction button nested encryptions nearly soil and far natively to hold; Often save between piston axle by screw thread nested encryptions; The thickness of external pipe thread groove is that 1/3 of outer tube thickness makes interface outer tube diameter consistent, and external diameter is consistent with junction button external diameter; Piston axle external diameter is consistent, slides up and down to facilitate piston axle.

5. Portable rotary piston sample according to claim 4, is characterized in that: often save outer tube be all made up of two semicanals, with facilitate fetch earth after soil sample is taken out.

6. the Portable rotary piston sample according to any one of claim 1 ~ 4, is characterized in that: the lateral wall of described every section of outer tube is equipped with scale, conveniently knows the got degree of depth.

7. Portable rotary piston sample according to claim 4, is characterized in that: the connecting link of tail end outsourcing outer tube and the tail end of every section of outer tube can be threaded connection.

8. Portable rotary piston sample according to claim 4, is characterized in that: the length of every section of outer tube and piston axle is all about 900 ~ 1200mm; The internal diameter of outer tube has between 35mm, 40mm to 90mm and has 12 ranks; External diameter 1 ~ the 2mm less of the internal diameter of outer tube of piston axle, slides up and down to facilitate piston axle.