CN209085983U - A kind of soil sampler for coring - Google Patents

Abstract

The utility model discloses a soil extractor used for coring. A lifting rod is installed on a support frame, and the lower end of the lifting rod is connected with the soil borrowing pipe through the support frame, the output shaft of the driving motor is connected with the driving gear shaft, and the driving gear is connected with The rotating sleeve is engaged, the bearing is connected with the slider, the slider is connected with the connecting sleeve, and the connecting sleeve is sleeved on the outside of the lifting rod; the lifting rod includes a hollow outer tube and a piston shaft sleeved inside the outer tube, and the outer tube is provided with screw holes The screw hole is equipped with a matching locking bolt, a piston is installed at the lower end of the piston shaft, and the lower end of the outer pipe is connected with the soil borrowing pipe; a rotatable baffle is provided on the inner wall of the end of the inner sleeve close to the cutter teeth. The piston pushes down and presses out the air in the soil sampling pipe, so that a vacuum is generated between the piston and the soil sample to ensure the sampling rate of the soil sample, and the soil sampling pipe is lifted upward with the help of the driving motor, so there is no need to lift the soil sampling pipe manually, which saves manpower and saves manpower. The piston is equipped with a scraper that can clean the surface of the piston. When the soil extractor is used continuously, the scraper is used to quickly clean the surface of the piston, so as to avoid the soil on the surface of the piston from affecting the sampling accuracy. Improve the adhesion of soil, prevent soil from detaching, and improve soil borrowing efficiency.

Description

A soil extractor for coring

technical field

The utility model belongs to the technical field of geological exploration equipment, in particular to a soil extractor for coring.

Background technique

In the field of geological exploration, soil borrowers are widely used in scientific research, teaching and production as an auxiliary tool for soil analysis and sampling and geotechnical test sampling. The earth borrower is used to lift the undisturbed soil of the lower layer as a sample to understand its properties. In order to know more about the properties of the base layer, and in the engineering geological exploration and exploration work, in order to obtain the physical and mechanical performance indicators of the foundation soil, sometimes it is necessary to The original soil is taken from a deeper depth, and this kind of soil borrowing equipment is called a soil borrower.

At present, the soil borrowing part of the existing earth borrower is generally made of stainless steel. When collecting soil samples of soft soil, when the soil samples are collected and lifted up, the soft soil is easy to fall from the earth borrower, and the soil extraction efficiency In addition, it is very laborious to lift the soil extractor upwards manually. After the soil sample collection is completed, the soil sample needs to be discharged from the soil sampling pipe with equipment, which will greatly disturb the soil sample. In addition, when collecting the soil sample After that, the surface of the piston in contact with the soft soil will be stained with more soil, and the soil stained on the surface of the piston during continuous soil sampling will affect the soil sample taken again and affect the accuracy of soil sample detection parameters.

Utility model content

The purpose of the utility model is to provide a soil extractor for coring, which is simple in structure, simple in operation, less disturbed to soil samples, capable of cleaning the piston, and high in soil extraction efficiency.

The technical scheme of the present utility model is as follows:

A soil extractor for coring comprises a support frame, a soil extraction pipe, a lifting rod and a driving mechanism, the lifting rod is installed on the supporting frame, and the lower end of the lifting rod passes through the supporting frame and the The soil borrowing pipe is connected, and the driving mechanism is installed on the support frame;

The drive mechanism includes a drive motor, a drive gear and a rotating sleeve, the drive motor is mounted on the support frame, the output shaft of the drive motor is connected to the drive gear shaft, and the drive gear is connected to the rotating sleeve Engaged with each other, the rotating sleeve is sleeved on the outside of the lifting rod;

The lifting rod includes a hollow outer tube and a piston shaft sleeved inside the outer tube, the outer tube is provided with a screw hole, and a matching locking bolt is installed on the screw hole for locking the piston shaft with the piston shaft. A piston is detachably installed on the lower end of the piston shaft, a motor is arranged in the piston shaft, the output shaft of the motor is connected with the rotating shaft, and a detachable scraper is installed on the rotating shaft, and the scraper The plate is installed on the lower surface of the piston, and the bottom of the outer pipe is connected with the borrow pipe;

The bottom of the soil borrowing pipe is provided with cutter teeth along the circumferential direction, the soil borrowing pipe includes an outer sleeve and an inner sleeve arranged in the outer sleeve, the piston is sleeved in the inner sleeve, and the inner sleeve is A plurality of through holes are evenly distributed on the outer wall of the inner sleeve, and a rotatable baffle plate is arranged on the inner wall of one end of the inner sleeve close to the cutter teeth.

In the above technical solution, the lower part of the piston shaft is provided with a mounting plate, and the piston can be mounted on the mounting plate by means of bolts.

In the above technical solution, the scraper is connected with the rotating shaft through a bearing for rotating and cleaning the surface of the piston driven by a motor.

In the above technical solution, the outer diameter of the piston matches the inner diameter of the inner sleeve of the soil borrowing pipe.

In the above technical solution, the lower ends of the outer sleeve and the inner sleeve are flush with each other and are provided with grooves.

In the above technical solution, the baffle is connected to the inner sleeve through a hinge shaft.

In the above technical solution, a piston handle is installed on the top of the piston shaft.

In the above technical solution, an anti-skid layer is provided on the piston handle.

In the above technical solution, a support seat is installed at the bottom of the support frame.

In the above technical solution, the vertical rod of the support frame adopts a telescopic rod for adjusting the length.

The advantages and positive effects that the utility model has are:

1. The piston pushes down and presses out the air in the soil sampling pipe, so that a vacuum is generated between the piston and the soil sample to ensure the sampling rate of the soil sample, and the soil sampling pipe is lifted up with the drive motor, without the need to manually lift the soil sampling pipe, saving manpower, In addition, a scraper is installed on the piston that can clean the surface of the piston. When the soil extractor is used continuously, the scraper is used to quickly clean the surface of the piston, so as to avoid the soil on the surface of the piston affecting the sampling accuracy. The adhesion of the borrow pipe prevents the soil from detaching and improves the borrowing efficiency.

2. A through hole is opened on the outer wall of the inner sleeve. After the soil sample is squeezed into the through hole, the adhesion between the inner sleeve and the outer sleeve is enhanced to prevent the soil sample from falling. There are cutter teeth, which reduce the resistance of the earth extractor in the soil layer and improve the efficiency of earth extraction.

Description of drawings

Fig. 1 is the structural representation of the soil extractor for coring of the present utility model;

Fig. 2 is the structural representation of the soil borrow pipe in the present utility model;

Fig. 3 is the structural representation of the inner sleeve in the present invention;

Figure 4 is a schematic structural diagram of the piston in the present invention.

In the picture:

1. Support seat 2. Support frame 3. Borrowing pipe

4. Piston 5. Lifting rod 6. Connecting sleeve

7. Outer tube 8. Piston shaft 9. Locking bolt

10. Piston handle 11. Outer sleeve 12. Inner sleeve

13, baffle plate 14, hinge shaft 15, cutter teeth

16. Motor 17. Mounting plate 18. Rotating shaft

19, scraper 23, drive motor 24, rotating sleeve

25. Drive gear

Detailed ways

The present utility model will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, not to limit the present invention, and in no way limit the protection scope of the present invention.

Example 1

As shown in the figure, the utility model is a soil extractor for coring, including a support frame 2, a soil extraction pipe 3, a lifting rod 5 and a driving mechanism, the lifting rod 5 is installed on the supporting frame 2, and the lifting rod 5 is The lower end passes through the support frame 2 and is connected to the borrow pipe 3, and the drive mechanism is installed on the support frame 2; the drive mechanism includes a drive motor 23, a drive gear 25 and a rotating sleeve 24, and the drive motor 23 is installed on the support frame 2. The output shaft is axially connected with the drive gear 25, the drive gear 25 is meshed with the rotating sleeve 24, and the rotating sleeve 24 is sleeved on the outside of the lifting rod 5; The outer tube 7 is provided with a screw hole, and the screw hole is provided with a matching locking bolt 9 for locking the piston shaft 8 and the outer tube 7. The lower end of the piston shaft 8 is detachably installed with a piston 4, and the piston shaft 8 is provided with a motor 16 (using a miniature motor with a battery), the output shaft of the motor 16 is connected with the rotating shaft 18, a detachable scraper 19 is installed on the rotating shaft 18, and the scraper 19 is installed on the lower surface of the piston 4 , the bottom of the outer pipe 7 is connected with the soil extraction pipe 3; the bottom of the soil extraction pipe 3 is provided with cutter teeth 15 along the circumferential direction, and the soil extraction pipe 3 includes an outer sleeve 11 and an inner sleeve 12 arranged in the outer sleeve 11, and the piston 4 is sleeved Inside the inner sleeve 12 , a plurality of through holes are evenly distributed on the outer wall of the inner sleeve 12 , and a rotatable baffle 13 is provided on the inner wall of one end of the inner sleeve 12 close to the cutter teeth 15 .

The lower part of the above-mentioned piston shaft 8 is provided with a mounting plate 17, the piston 4 can be mounted on the mounting plate 17 by bolts, and the scraper 19 is connected with the rotating shaft 18 through a bearing. surface.

Further, the outer diameter of the piston 4 matches the inner diameter of the inner sleeve 12 of the soil borrowing pipe 3 , and the lower ends of the outer sleeve 11 and the inner sleeve 12 are flush with each other and are provided with grooves.

Further, the baffle 13 is connected with the inner sleeve 12 through the hinge shaft 14 .

When using the soil extractor, put the piston 4 into the soil extraction pipe 3, push the piston 4 to the lower end of the soil extraction pipe 3, and lock the outer pipe 7 with the locking bolt 9. Loosen the locking bolt 9, press the piston down to the required depth through the piston handle 10 under the action of external force, and then stop the pressing down. When the sample is squeezed into the through hole, the adhesion between the soil sample and the inner sleeve 12 and the outer sleeve 11 is increased to prevent the soil sample from falling off. The inner wall of the inner sleeve 12 is connected to the baffle 13 through the hinge shaft 14. The baffle 13 can effectively prevent the soft soil from sliding outward, and because the lower end of the soil borrowing pipe 3 is flush and provided with a bevel, it is convenient for the soil borrowing pipe 3 to take better downward sampling, saving soil borrowing effort. , after the driving motor 23 is reversed and the lifting rod 5 is pulled up to a certain position, the soil sample is taken out from the soil sampling pipe 3 to complete the soil sampling work, and then the scraper 19 is installed on the rotating shaft 18 through the bearing, and the scraper 19 is installed on the The lower surface of the piston 4 is removed, and the starter motor 16 drives the scraper 19 to rotate to clean the soil on the surface of the piston 4 .

Example 2

On the basis of Example 1, a support base 1 is installed at the bottom of the support frame to improve the stability of the support frame 2. During the sampling operation of the soil borrow pipe 3, the stability of the support frame 2 is helpful for the downward movement of the soil borrow pipe 3. Sampling to improve soil borrowing efficiency.

Example 3

On the basis of Example 1, the top of the piston shaft 8 is provided with a piston handle 10, the piston handle 10 is provided with a non-slip layer, and the vertical rod of the support frame 2 adopts a telescopic rod for adjusting the length, which can be adjusted according to the needs of the sampling position. Adjust the support frame 2 to a position suitable for taking soil samples to ensure the stability of the support frame 2 and improve the efficiency of soil sampling. After that, the soil sampling pipe 3 is separated, so that soil can be quickly extracted without using a piston to push, and the disturbance to the soil sample can be reduced.

An embodiment of the present invention has been described in detail above, but the content is only a preferred embodiment of the present invention, and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present utility model should still belong to the scope of the patent of the present utility model.

Claims (10)

1. a kind of soil sampler for coring, it is characterised in that: including support frame, soil pipe, shadoof and driving mechanism are taken, it is described to mention Bar is mounted on support frame as described above, and the lower end of the shadoof passes through support frame as described above and takes native pipe to connect with described, the driving machine Structure is mounted on support frame as described above；

The driving mechanism includes that driving motor, driving gear and turning set, the driving motor are mounted on support frame as described above, The output shaft of the driving motor is connect with the gear shaft, and the driving gear is meshed with the turning set, described Turning set is sleeved on the outside of the shadoof；

The shadoof includes hollow outer tube and the piston shaft for being sleeved on outer tube, and the outer tube is equipped with screw hole, the spiral shell Matched clamping screw is installed so that for locking piston shaft and outer tube, the lower end of the piston shaft is removably on hole One piston is installed, a motor is provided in the piston shaft, the output shaft of the motor is connect with shaft, is pacified in the shaft Equipped with a dismountable scraper plate, and the scraper plate is mounted on the lower surface of the piston, and the bottom of the outer tube takes native pipe with described Connection；

The bottom for taking native pipe is along the circumferential direction equipped with cutter tooth, described that soil pipe is taken to include outer sleeve and be arranged in outer sleeve Inner sleeve, the piston bush is evenly distributed with multiple through-holes in the inner sleeve on the outer wall of the inner sleeve, described interior Inner wall of the sleeve close to one end of cutter tooth is equipped with rotatable baffle.

2. soil sampler according to claim 1, it is characterised in that: the lower part of the piston shaft is equipped with mounting disc, the work Plug can be mounted in the mounting disc by bolt.

3. soil sampler according to claim 2, it is characterised in that: the scraper plate by bearing connect with the shaft with The surface of the piston is cleaned in rotation driven by the motor.

4. soil sampler according to claim 3, it is characterised in that: the outer diameter of the piston and the inner sleeve for taking native pipe Internal diameter match.

5. soil sampler according to claim 4, it is characterised in that: the outer sleeve is flushed and is all provided with the lower end of inner sleeve There is groove.

6. soil sampler according to claim 5, it is characterised in that: the baffle is connect by hinged shaft with the inner sleeve.

7. soil sampler described in any one of -6 according to claim 1, it is characterised in that: be equipped at the top of the piston shaft Piston handle.

8. soil sampler according to claim 7, it is characterised in that: the piston handle is equipped with anti-slip layer.

9. soil sampler according to claim 8, it is characterised in that: install support base in the bottom of support frame as described above.

10. soil sampler according to claim 9, it is characterised in that: the upright bar of support frame as described above is used for adjusting length Telescopic rod.