CN213068283U

CN213068283U - Special sampler of ground mechanics experiment

Info

Publication number: CN213068283U
Application number: CN202022183170.1U
Authority: CN
Inventors: 谢昊倩
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-04-27
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a special sampler of ground mechanics experiment, including the base, there is the guide post upper end of base, and the guide post cover is equipped with first fly leaf and second fly leaf. The first movable plate is fixed with a rotating motor, an output shaft of the rotating motor is inserted into a reciprocating screw rod through a rotating sleeve, the bottom end of the reciprocating screw rod is inserted into a first belt wheel, the first movable plate is fastened with a guide column, and a soil sampling pipe is arranged on the lower side of the second movable plate. The first belt wheel drives a second belt wheel, and the second belt wheels are mutually driven. The soil sampling pipe is used for sampling and discharging under the action of the reciprocating screw rod. The utility model discloses can take a sample to the different degree of depth samples as required, can effectively fix whole sampler for perpendicular sample does not receive external environment to influence, and two half pipes are through bolt fixed connection, do not destroy the sample structure when taking out the sample, are favorable to follow-up experiment to go on.

Description

Special sampler of ground mechanics experiment

Technical Field

The utility model relates to a soil sampling technical field especially relates to a special sampler of ground mechanics experiment.

Background

Soil sampling refers to a method for collecting soil samples, and comprises sampling arrangement and sampling technology. The sampling of the soil sample in the cross section is performed after the cross section observation is completed. Before sampling, the section should be trimmed and cleaned, the most superficial layer of the floating soil is cut off, and then the sample is taken from the central typical part layer by layer from top to bottom according to the layers. The sampler can accomplish the sampling task.

For example, patent specification CN2811974 discloses a conical sampler with double tangential surfaces, which comprises a sampler, a sampling tube and a liner tube. The soil sampler is connected with the sampling tube through a pin bolt, and the liner tube is directly sleeved at the upper end of the soil sampler. The lower end part of the soil sampler is in a double-tangent-plane conical shape, and the outer diameter of the double-tangent-plane conical shape at the lower end of the soil sampler is slightly larger than that of the sampling pipe. The soil sampler has a simple structure, effectively reduces the contact surface of the soil sampler and soil, eliminates the negative pressure at the end part of the sample during upward pulling, reduces the difficulty of penetration and upward pulling, and improves the soil sample collection quality.

The sampler has the disadvantages that firstly, the length of the sampler is fixed and can not be changed, and the sampler can not meet the requirement of sampling soil at different depths; secondly, the bottom of the soil sampler is not fixed enough in the soil sampling process, and the soil sampler is easily influenced by the external environment and cannot vertically sample when vertically entering the soil for sampling; thirdly, the sample is taken out by the soil sampler, and the complete vertical structure of the sample cannot be maintained.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned problem that exists among the conventional art, provide a special sampler of ground mechanics experiment.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

the utility model provides a special sampler of ground mechanics experiment, includes the base, the upper end of base is fixed with the guide post, the outside cover of guide post is equipped with first fly leaf and second fly leaf, first fly leaf is located the top of second fly leaf. The first movable plate is fixed with a rotating motor through a support, an output shaft of the rotating motor is fixed with a rotating sleeve, a reciprocating screw rod is inserted into the bottom end of the rotating sleeve, a first belt wheel is inserted into the bottom end of the reciprocating screw rod, a positioning groove capable of providing rotating support for the first belt wheel is formed in the upper end of the base, and the axis of the first belt wheel is unchanged in the rotating process due to the positioning groove. The lateral end of the first movable plate is screwed with a fastening screw rod, the fastening screw rod can be tightly and fixedly abutted to the guide post through inward screwing, and the lower side of the second movable plate is screwed with a soil sampling pipe.

The four corners department of base rotates the restriction and has a supporting screw, supporting screw's upper end is fixed with the second band pulley, carries out the transmission through first drive belt between two adjacent second band pulleys and connects, first band pulley carries out the transmission through second drive belt and one of them second band pulley and is connected, the second drive belt is the drive belt that can dismantle and open.

Further, above-mentioned special sampler of ground mechanics experiment, the soil sampling pipe is the combination formula body, and it comprises two half pipes, the upper end outer wall of half pipe is equipped with connecting thread, the both ends inboard of half pipe is equipped with the flange, two the flange of butt joint passes through the bolt in the half pipe and links firmly, conveniently takes out the sample and guarantees that the structure is complete after the sample.

Furthermore, in the special sampler for the geotechnical mechanics experiment, the protruding length of the supporting screw relative to the base is 5-8 cm, the supporting screw can rotate along with the second belt wheel to drill into the periphery of a sampling place, and the base is fixed.

Further, above-mentioned special sampler of ground mechanics experiment, the base is located and wears to be equipped with the sleeve pipe under the geotome, the sleeve pipe internal diameter is greater than the geotome external diameter, makes things convenient for the geotome to pass through.

Further, above-mentioned special sampler of ground mechanics experiment, reciprocal lead screw includes the lead screw body, the both ends of lead screw body are equipped with the bayonet joint respectively, the rotary sleeve, first band pulley are seted up respectively and are corresponded bayonet joint complex inserting groove.

Further, above-mentioned special sampler of ground mechanics experiment, the bayonet joint is square column structure, the inserting groove is square groove.

The utility model has the advantages that:

1. the utility model discloses a change can be dismantled to reciprocal lead screw and geotome, makes the utility model discloses can take a sample to the different degree of depth samples as required.

2. The utility model discloses a second band pulley drives supporting screw and precessions downwards, can effectively fix the base on work ground, and then fixes whole sampler for the sampling process can take a sample perpendicularly, does not receive external environment to influence.

3. The utility model discloses utilize two half pipes through bolt fixed connection, when taking out the sample, will fetch earth and open the bolt of two fixed half pipes behind the pipe screw-out second fly leaf for the sample structure is complete, is favorable to follow-up experiment to go on.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the whole body of the present invention;

FIG. 2 is a schematic structural view of the reciprocating screw rod of the present invention;

FIG. 3 is an external view of the soil sampling pipe of the present invention;

FIG. 4 is a schematic view of the half-pipe connection of the soil sampling pipe of the present invention;

fig. 5 is a schematic view of the transmission structure of the present invention.

In the drawings, the parts are numbered as follows:

1-base, 2-guide column, 3-first movable plate, 4-second movable plate, 5-bracket, 6-rotating motor, 7-rotating sleeve, 8-reciprocating screw rod, 801-thread groove, 802-square bulge, 9-first belt wheel, 10-fastening screw rod, 11-soil sampling pipe, 1101-half pipe, 1102-thread, 1103-convex plate, 1104-bolt, 12-supporting screw, 13-second belt wheel, 14-first transmission belt, 15-second transmission belt and 16-sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present embodiment is a special sampler for geotechnical experiments, which includes a base 1, a guide column 2 is fixed at an upper end of the base 1, a first movable plate 3 and a second movable plate 4 are sleeved outside the guide column 2, the first movable plate 3 is located above the second movable plate 4, and the first movable plate 3 is fixed with a rotating motor 6 through a bracket 5. An output shaft of the rotating motor 6 is fixed with a rotating sleeve 7, a reciprocating screw rod 8 is inserted into the bottom end of the rotating sleeve 7, a first belt wheel 9 is inserted into the bottom end of the reciprocating screw rod 8, and a positioning groove capable of providing rotating support for the first belt wheel 9 is formed in the upper end of the base 1. The side end of the first movable plate 3 is screwed with a fastening screw 10, the fastening screw 10 can be tightly abutted and fixed with the guide post 2 by screwing inwards, and the lower side of the second movable plate 4 is screwed with a soil sampling pipe 11. The four corners of the base 1 are limited by rotation of supporting screws 12, the protruding length of the supporting screws 12 relative to the base 1 is 5-8 cm, the upper end of each supporting screw 12 is fixed with a second belt wheel 13, two adjacent second belt wheels 13 are in transmission connection through a first transmission belt 14, the first belt wheel 9 is in transmission connection with one of the second belt wheels 13 through a second transmission belt 15, and the second transmission belt 15 is a detachable transmission belt, which is disclosed in patent No. CN 211129928U.

In this embodiment, geotome 11 is combination formula body, and it comprises two half pipes 1101, and the upper end outer wall of half pipe is equipped with connecting thread 1102, and the both ends inboard of half pipe is equipped with flange 1103, and the flange that docks in two half pipes links firmly through bolt 1104.

In this embodiment, the base 1 is located under the soil sampling pipe 11 and is provided with the sleeve 16 in a penetrating manner, and the inner diameter of the sleeve 16 is larger than the outer diameter of the soil sampling pipe 11.

In this embodiment, the reciprocating screw 8 includes a screw body 801, two ends of the screw body are respectively provided with a plug 802, the rotary sleeve 7 and the first belt pulley 9 are respectively provided with a plug groove matched with the corresponding plug, the plug is of a square column structure, and the plug groove is a square groove.

One specific application of this embodiment is: after the selected and needed reciprocating screw rod 8 is installed, the rotating motor 6 is started to drive the first belt wheel 9 to rotate, the first belt wheel 9 drives one of the second belt wheels 13 to rotate through the second transmission belt 15, then the supporting screw 12 is driven to drill into the ground through the first transmission belt 14 and the rest of the second belt wheels 13, the whole base 1 is fixed on the ground, the rotating motor 6 is closed at the moment, the soil sampling pipe 11 needed by installation is installed on the sliding block, the second transmission belt 15 is detached, the rotating motor 6 is started again, sampling is carried out through the reciprocating motion of the second movable plate 4, after sampling is finished, the soil sampling pipe 11 is screwed down, the top bolt 1104 of the soil sampling pipe is taken down, and an experiment can be carried out on a complete sample structure.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a special sampler of geotechnical mechanics experiment, includes base (1), its characterized in that: a guide column (2) is fixed at the upper end of the base (1), a first movable plate (3) and a second movable plate (4) are sleeved on the outer side of the guide column (2), the first movable plate (3) is located above the second movable plate (4), a rotating motor (6) is fixed on the first movable plate (3) through a support (5), a rotating sleeve (7) is fixed on an output shaft of the rotating motor (6), a reciprocating screw rod (8) is inserted into the bottom end of the rotating sleeve (7), a first belt wheel (9) is inserted into the bottom end of the reciprocating screw rod (8), a positioning groove capable of providing rotating support for the first belt wheel (9) is formed in the upper end of the base (1), a fastening screw rod (10) is connected to the side end of the first movable plate (3) in a threaded manner, and a soil taking pipe (11) is connected to the lower side of the second movable plate (4) in a threaded manner; the four corners of base (1) are rotated and are restricted supporting screw (12), the upper end of supporting screw (12) is fixed with second band pulley (13), carry out the transmission through first drive belt (14) between two adjacent second band pulleys (13) and connect, first band pulley (9) carry out the transmission through second drive belt (15) and one of them second band pulley (13) and connect, second drive belt (15) are for can dismantling the drive belt of opening.

2. The special sampler for geotechnical experiments according to claim 1, wherein: soil sampling pipe (11) are combination formula body, and it comprises two half pipes (1101), the upper end outer wall of half pipe is equipped with connecting thread (1102), the both ends inboard of half pipe is equipped with flange (1103), two the flange that docks in the half pipe links firmly through bolt (1104).

3. The special sampler for geotechnical experiments according to claim 1, wherein: the protruding length of the supporting screw (12) relative to the base (1) is 5-8 cm.

4. The special sampler for geotechnical experiments according to claim 1, wherein: the base (1) is located and wears to be equipped with sleeve pipe (16) under soil sampling pipe (11), sleeve pipe (16) internal diameter is greater than soil sampling pipe (11) external diameter.

5. The special sampler for geotechnical experiments according to claim 1, wherein: the reciprocating screw rod (8) comprises a screw rod body (801), two ends of the screw rod body are respectively provided with a plug-in connector (802), and the rotating sleeve (7) and the first belt wheel (9) are respectively provided with a plug-in groove matched with the corresponding plug-in connector.

6. The special sampler for geotechnical experiments according to claim 5, wherein: the plug connector (802) is of a square column structure, and the plug groove is a square groove.