Soil sampling device for geological engineering

Abstract

A soil sampling device for geological engineering comprises a driving motor, a handheld handle is arranged at the top end of the driving motor, a mounting screw cylinder is arranged on a driving shaft at the bottom end of the driving motor, a sampling pipe assembly is arranged below the mounting screw cylinder, and a sampling drill bit is arranged at the bottom of the sampling pipe assembly; the technical problem to be solved by the utility model is to provide the soil sampling device for geological engineering and solve the technical problems that sampling soil entering a sampling pipe is difficult to effectively discharge during actual operation of the existing soil sampling device for geological engineering, and the sampling pipe is difficult to discharge after being pulled out of a drill hole. The problems that in the prior art, a worker needs to strenuously dig out sampled soil, and the dig-out soil is distributed in a scattered mode, so that the worker cannot conveniently collect and carry the soil are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of soil sampling devices, specifically a soil sampling device for geological engineering. Background Technology

[0002] Soil sampling is a common activity in geological engineering, involving the collection and analysis of soil samples from specific locations. In practical applications, it is often necessary to sample soil from a certain depth below the surface, which requires the use of soil sampling equipment.

[0003] Chinese patent CN212903991U discloses a soil sampling device for geological engineering, including a protective frame, a base plate, a connecting plate, and a movable plate. A hydraulic rod is fixedly installed at the top of the inner wall of the protective frame, and a motor is fixedly installed at the bottom of the hydraulic rod. The output shaft of the motor is fixedly connected to a screw rod. T-shaped sliding plates are fixedly connected to the bottom of both ends of the protective frame. A second sliding groove is provided on the side of the T-shaped sliding plate that is offset from the protective frame. A spring is fixedly connected to the top of one end of the movable plate, and one end of the spring is fixedly connected to the second sliding groove. The top of the base plate has a first sliding groove corresponding to the T-shaped sliding plate, and one end of the base plate has a slot. The connecting plate has a threaded hole. By setting the sampling device in the protective frame and providing two sliding base plates at the bottom of the protective frame, and using the positioning rod on the protective frame to lock into the connecting plate on the base plate, the base plates can be fixed to the bottom of the protective frame, facilitating the movement of the device and preventing the base plates from sliding during movement. This solves the problem of existing sampling devices being large and inconvenient to move.

[0004] The soil sampling device in the aforementioned patent still has certain shortcomings. In actual operation, the soil sampled inside the sampling tube of the existing soil sampling device for geological engineering is difficult to be effectively discharged. After the sampling tube is pulled out of the borehole, workers still need to work hard to dig out the sampled soil. Moreover, the soil that has been dug out is scattered and not convenient for workers to collect and carry. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a soil sampling device for geological engineering, which solves the problem that in the actual operation of existing soil sampling devices for geological engineering, it is difficult to effectively remove the sampled soil that enters the sampling tube. After the sampling tube is pulled out of the borehole, workers still need to work hard to dig out the sampled soil, and the dug-out soil is scattered and inconvenient for workers to collect and carry.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a soil sampling device for geological engineering, including a drive motor, a handle is provided at the top of the drive motor, a mounting screw is provided on the drive shaft at the bottom of the drive motor, a sampling tube assembly is provided below the mounting screw, and a sampling drill bit is provided at the bottom of the sampling tube assembly.

[0007] The sampling tube assembly includes a drilled connecting tube disposed below the mounting screw cylinder. The top end of the drilled connecting tube is threaded into the mounting screw cylinder. A sampling connecting tube is disposed below the drilled connecting tube. A baffle is disposed in the middle of the bottom end of the sampling connecting tube. The sampling connecting tube is cylindrical with openings at both the top and bottom ends. A top internal thread is provided at the top opening of the sampling connecting tube. A top connecting screw block is provided at the bottom end of the drilled connecting tube and is inserted into the top internal thread. A bottom internal thread is provided at the bottom end of the sampling connecting tube.

[0008] Preferably, the top of the sampling drill bit is provided with a drill bit connecting screw block, which is inserted into the bottom internal thread. The side of the sampling connecting tube is provided with a side sample inlet, and a sample collection tube is slidably inserted into the sampling connecting tube. The side of the sample collection tube is provided with a sample inlet.

[0009] Preferably, the top threaded cap of the sample collection tube is provided with a top closing cap, and the bottom inner side of the sampling connection tube is provided with a positioning slot.

[0010] Preferably, the bottom end of the sample collection tube is provided with a positioning block, which is inserted into the positioning slot.

[0011] Preferably, the sample inlet and the side inlet are located on the same side.

[0012] Preferably, the opening area of ​​the sample inlet is larger than the opening area of ​​the side inlet.

[0013] Preferably, the longitudinal section of both the positioning block and the positioning slot is cross-shaped.

[0014] This utility model provides a soil sampling device for geological engineering. A sampling tube assembly and a sampling drill bit are installed below a drive motor. The drive motor rotates the sampling drill bit via the sampling tube assembly, enabling drilling and sampling on the ground. Soil generated during drilling enters a sample collection cylinder through a side inlet in the sampling connecting tube of the sampling tube assembly and is stored centrally. When the user needs to remove the sampled soil, they can directly remove the sample collection cylinder from the sampling connecting tube and empty the sample soil from the cylinder for storage. Alternatively, the user can directly store the sample collection cylinder. This makes it more convenient for users to carry and use the sample soil for testing and sampling. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 For the present utility model Figure 2 Enlarged view of the middle sampling tube assembly;

[0019] Figure 4 For the present utility model Figure 3 A schematic diagram of the sampling connection tube. Detailed Implementation

[0020] like Figure 1-4 As shown, a soil sampling device for geological engineering includes a drive motor 1, a handle 2 is provided at the top of the drive motor 1, a mounting screw 3 is provided on the drive shaft at the bottom of the drive motor 1, a sampling tube assembly 4 is provided below the mounting screw 3, and a sampling drill bit 5 is provided at the bottom of the sampling tube assembly 4.

[0021] The sampling tube assembly 4 includes a drilled connecting tube 401 disposed below the mounting screw cylinder 3. The top end of the drilled connecting tube 401 is threaded into the mounting screw cylinder 3. A sampling connecting tube 402 is disposed below the drilled connecting tube 401. A baffle is disposed in the middle of the bottom end of the sampling connecting tube 402. The sampling connecting tube 402 is cylindrical with openings at both the top and bottom ends. A top internal thread 403 is provided at the top opening of the sampling connecting tube 402. A top connecting screw block 404 is provided at the bottom end of the drilled connecting tube 401. The top connecting screw block 404 is inserted into the top internal thread 403. A bottom internal thread 405 is provided at the bottom end of the sampling connecting tube 402.

[0022] Preferably, the top of the sampling drill bit 5 is provided with a drill bit connecting screw block 406, which is inserted into the bottom internal thread 405. The sampling connecting tube 402 has a side sample inlet 407 on its side, and a sample collection tube 408 is slidably inserted into the sampling connecting tube 402. The sample collection tube 408 has a sample inlet 409 on its side.

[0023] Preferably, the top threaded cap of the sample collection tube 408 is provided with a top closing cap 410, and the bottom inner side of the sampling connecting tube 402 is provided with a positioning slot 411.

[0024] Preferably, the bottom end of the sample collection tube 408 is provided with a positioning block 412, which is inserted into the positioning slot 411.

[0025] Preferably, the sample inlet 409 and the side inlet 407 are located on the same side. This allows the soil drilled by the sampling drill bit 5 to smoothly enter the sample collection cylinder 408 through the side inlet 407.

[0026] Preferably, the opening area of ​​the sample inlet 409 is larger than the opening area of ​​the side inlet 407. This allows the soil sample passing through the side inlet 407 to enter the sample collection cylinder 408 more quickly.

[0027] Preferably, both the positioning block 412 and the positioning slot 411 have a cross-shaped longitudinal section. This allows the positioning block 412 to be inserted into the positioning slot 411 and effectively limit the position of the sample collection cylinder 408.

[0028] When in use, when the user holds the device to drill holes and take samples of soil, the user first holds the handle 2 tightly with both hands and presses the drive motor 1. At the same time, the drive motor 1 starts and drives the sampling drill bit 5 on the sampling tube assembly 4 to rotate, so that the sampling drill bit 5 can drill holes in the ground. The soil sample generated during the drilling process can enter the sampling tube assembly 4.

[0029] The user removes the sampling tube assembly 4 and the sampling drill bit 5 from the borehole, rotates the drilling connecting tube 401 in the sampling tube assembly 4 off the mounting screw cylinder 3 to remove it, and then rotates the drilling connecting tube 401 so that the top connecting screw block 404 at the bottom of the drilling connecting tube 401 can be unscrewed from the top of the sampling connecting tube 402, thereby making it easy to remove the sample collection tube 408 inserted in the sampling connecting tube 402. Since the side of the sampling connecting tube 402 and the side of the sample collection tube 408 are respectively provided with a side inlet 407 and a sample inlet 409, the side inlet 407 and the sample inlet 409 are located on the same side.

[0030] Furthermore, the soil sample generated during the drilling process of the sampling drill bit 5 can be collected and stored in the sample collection tube 408 through the side inlet 407 and the sample inlet 409. The user can obtain the soil sample required by pulling the sample collection tube 408 out of the sampling connection tube 402. The user can then open the top of the sample collection tube 408 by rotating the top closing cap 410 threaded on the top of the sample collection tube 408, so that the soil required for sampling can be taken out conveniently and completely.

[0031] Users can also directly remove the sample collection tube 408 without opening it, and directly preserve the sample collection tube 408 and the sampled soil. After reaching the testing destination, users can also take out the soil stored in the sample collection tube 408, which makes it more convenient for users to carry the sampled soil and to take out all the sampled soil, making it convenient for users to collect and use the samples.

[0032] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A soil sampling device for geotechnical engineering comprising a drive motor (1) characterised in that: The top end of the driving motor (1) is provided with a hand-held handle (2), the driving shaft at the bottom end of the driving motor (1) is provided with a mounting screw cylinder (3), a sampling pipe assembly (4) is arranged below the mounting screw cylinder (3), and the bottom of the sampling pipe assembly (4) is provided with a sampling drill bit (5); The sampling pipe assembly (4) comprises a drilling connecting pipe (401) arranged below the mounting screw cylinder (3), the top end of the drilling connecting pipe (401) is threadedly inserted into the mounting screw cylinder (3), a sampling connecting pipe (402) is arranged below the drilling connecting pipe (401), the middle portion of the bottom end of the sampling connecting pipe (402) is provided with a baffle, the sampling connecting pipe (402) is in a cylindrical shape with openings at the top end and the bottom end, a top inner thread (403) is arranged at the top end opening of the sampling connecting pipe (402), a top connecting screw block (404) is arranged at the bottom end of the drilling connecting pipe (401), the top connecting screw block (404) is inserted into the top inner thread (403), and a bottom inner thread (405) is arranged at the bottom end of the sampling connecting pipe (402).

2. The soil sampling device of claim 1, wherein: The top end of the sampling drill bit (5) is provided with a drill bit connecting screw block (406), the drill bit connecting screw block (406) is inserted into the bottom inner thread (405), a side sample inlet (407) is arranged at the side edge of the sampling connecting pipe (402), a sample collection cylinder (408) is slidably inserted into the sampling connecting pipe (402), and a sample inlet (409) is arranged at the side edge of the sample collection cylinder (408).

3. A soil sampling device for use in geotechnical engineering according to claim 2, wherein: The top end of the sample collection cylinder (408) is threadedly covered with a top closing cover (410), and the inner bottom of the sampling connecting pipe (402) is provided with a positioning slot (411).

4. The soil sampling device for geotechnical engineering according to claim 3, wherein: The bottom end of the sample collection cylinder (408) is provided with a positioning plug (412), and the positioning plug (412) is inserted into the positioning slot (411).

5. The soil sampling device for geotechnical engineering according to claim 2, wherein: The sample inlet (409) and the side sample inlet (407) are located on the same side.

6. A soil sampling device for use in geotechnical engineering according to claim 5 wherein: The opening area of the sample inlet (409) is greater than that of the side sample inlet (407).

7. The soil sampling device for geotechnical engineering according to claim 4, wherein: The longitudinal sections of the positioning plug (412) and the positioning slot (411) are in a cross shape.

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