A standard loess soil sample field automatic rotary cutting forming sampling device and implementation method

Abstract

The present application belongs to the technical field of geotechnical engineering exploration, and particularly relates to a standard loess soil sample field automatic rotary cutting forming sampling device and implementation method. The present application comprises a whole sleeve, a driving mechanism, a sampler and a preliminary sample cutter. The driving mechanism and the sampler are detachably connected in the whole sleeve from top to bottom. The preliminary sample cutter is connected to the lower part of the sampler. A standard sample box is arranged in the sampler. The present application solves the problems of long time consumption, non-uniform standard specification of soil sample cutting, easy breaking of soil sample and the like due to the irregular shape of the undisturbed soil sample block taken in the well, which must be secondarily formed into the standard specification undisturbed soil sample. The present application automatically and standardly obtains the loess soil sample forming, boxing, effectively reduces the operation time consumption and the soil sample breaking rate, and cuts the soil sample into the standard specification and simultaneously boxes. The present application device also has the characteristics of simplicity, lightness, easy operation and automation.

Description

Technical Field

[0001] This invention belongs to the field of geotechnical engineering exploration technology, specifically relating to an automatic rotary cutting and shaping sampling device and implementation method for standard loess soil samples in the field. Background Technology

[0002] With societal development, there is a growing need for various construction projects. According to relevant laws and regulations, geotechnical investigations must be conducted before the design and construction of any construction project. In recent years, with the continuous standardization of construction processes, the requirements for geotechnical investigations have become increasingly stringent, especially with the continuous updates to relevant standards and specifications, which have placed higher demands on geotechnical investigations of collapsible loess sites. Investigations in collapsible loess sites require a certain number of exploratory wells, with a maximum depth of 40 meters, and the number of undisturbed soil samples within each well must meet requirements. Currently, most exploratory wells are dug manually, and undisturbed soil samples are taken manually by carving into the well walls. Because this is done manually, the undisturbed soil samples taken from the well are irregular in shape. Therefore, the soil samples must be cut and shaped into standard-sized undisturbed samples at the wellhead. This work is generally done manually according to the specifications and dimensions of standard soil sample boxes, often resulting in problems such as long processing time, inconsistencies in standardizing the cut samples, and the tendency for the soil samples to break during cutting. Summary of the Invention

[0003] To address the problems of irregular shapes requiring secondary cutting and shaping, long processing time, and high soil sample damage rate caused by manual sampling, this invention provides a standard loess soil sample collection and packaging device and implementation method.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] An automatic rotary cutting and shaping sampling device for standard loess soil samples in the field includes an integral sleeve, a drive mechanism, a sampler, and a preliminary cutting tool; the drive mechanism and the sampler are detachably connected inside the integral sleeve from top to bottom; the preliminary cutting tool is connected to the lower part of the sampler; a standard sample box is provided inside the sampler.

[0006] The integral sleeve is a ring-shaped structure made of stainless steel; the upper inner side wall of the integral sleeve is provided with a connecting groove for connecting the drive mechanism; the side wall below the connecting groove of the integral sleeve is provided with a thread for connecting the sampler; the middle side wall of the integral sleeve is provided with a through hole, and a gripping part is connected to the through hole.

[0007] The gripping part is a handle; two handles are provided; the two handles are symmetrically fixed on the outer side wall of the middle part of the integral sleeve, and one of the handles is provided with a control button, which is electrically connected to the drive mechanism.

[0008] The drive mechanism includes a housing and a motor; the motor is housed inside the housing and is fixedly connected to a sampler mounted on the integral sleeve. An integrated controller is connected to the motor and is electrically connected to a control button; the integrated controller includes at least an adjustment module for adjusting the motor speed, a pressure control module for adjusting the motor pressure, and a steering control module for adjusting the motor rotation direction.

[0009] The sampler includes at least a sampler sleeve; the sampler sleeve is a ring-shaped structure made of stainless steel; the upper part of the sampler sleeve is connected to a connector for connection with a drive mechanism; the upper outer wall of the sampler sleeve is provided with threads for connection with the integral sleeve; the lower inner wall of the sampler sleeve is provided with an annular platform, the upper surface of the annular platform is provided with a concave groove, a standard sample box is connected in the concave groove, the upper outer wall of the standard sample box is provided with threads for connection with the inner wall of the sampler; the lower end of the sampler sleeve is provided with a sampler blade; the lower outer wall of the sampler sleeve is provided with a connecting part for connection with a preliminary sample cutter.

[0010] The connector includes multiple spokes and a shaft disc; the upper end of each spoke is evenly connected to the shaft disc, the lower end of each spoke is connected to the sampler sleeve, and the shaft disc is connected to the drive mechanism.

[0011] The connecting part is an annular protrusion, and the side of the protrusion is fixedly connected to the preliminary sample cutter.

[0012] The preliminary sample cutter has a circular cup-shaped structure with a preliminary sample cutter blade at the lower end and a circular opening at the upper part. A ring-shaped connecting arm for fixed connection with the sampler is vertically arranged on the edge of the circular opening.

[0013] The standard sample box has a circular cup-shaped structure; its open end is provided with a shoulder, and the port of the shoulder is connected to the sampler.

[0014] A sampling method using a standard loess soil sampler with an automated rotary cutting and shaping device includes the following steps.

[0015] Step 1: Remove the sampler from the overall sleeve, put the standard sample box into the sampler, and then connect and fix the sampler with the standard sample box to the overall sleeve.

[0016] Step 2: Vertically lift the standard loess soil sample automatic rotary cutting and shaping sampling device, place the preliminary cutting tool vertically on the loess to be sampled, press down on the standard loess soil sample automatic rotary cutting and shaping sampling device, start the drive mechanism, keep the sampler rotating at a uniform speed, the sampler drives the preliminary cutting tool to rotate, the preliminary cutting tool moves downward, so that the soil sample it rotary cuttings is shaped twice by the sampler and enters the standard sample box.

[0017] Step 3: Stop the drive mechanism, remove the sampler from the overall sleeve, and take out the standard sample box containing the soil sample from the sampler.

[0018] Beneficial effects:

[0019] (1) The present invention, through the setting of a sampler and a preliminary sampler, facilitates the acquisition of loess soil samples under the drive of an electric motor, and the samples are regular and uniform, saving time and effort.

[0020] (2) The present invention sets a standard sample box inside the soil sampler, and the loess soil sample obtained by the preliminary sampler and the soil sampler is directly packed into the box, thus avoiding the occurrence of soil sample breakage during the subsequent packing process.

[0021] (3) The present invention uses the dual cutting of soil sampler and preliminary cutting device to make the obtained soil sample more regular and standard.

[0022] (4) The integral sleeve of the present invention is provided with a handle and a control button is provided on the handle, making the sampling operation more convenient.

[0023] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention will be described in detail below. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the present invention.

[0026] In the diagram: 1-Power supply wiring; 2-Signal line; 3-Motor; 4-Connecting groove; 5-Connecting thread; 6-Connector; 7-Control button; 8-Handle; 9-Sampler; 10-Sampler sleeve; 11-Standard sample box; 12-Connecting part; 13-Sampler blade; 14-Preliminary sample cutter; 15-Preliminary sample cutter blade; 16-Integral sleeve.

[0027] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the following detailed description is provided through preferred embodiments of the present invention. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] Reference Figure 1 The above describes an automatic rotary cutting and shaping sampling device for standard loess soil samples in the field, which includes an integral sleeve 16, a drive mechanism, a sampler 9, and a preliminary cutting device 14; the drive mechanism and the sampler 9 are detachably connected from top to bottom inside the integral sleeve 16; the preliminary cutting device 14 is connected to the lower part of the sampler 9; a standard sample box 11 is provided inside the sampler 9.

[0031] In practical use, first remove the sampler 9 from the overall sleeve 16, place the standard sample box 11 into the sampler 9, and then connect and fix the sampler 9 to the overall sleeve 16. Connect the power supply cable 1 to an external power source, then vertically lift the standard loess soil sample automatic rotary cutting and shaping sampling device, place the preliminary cutting tool 14 vertically on the loess to be sampled, and surround it with loose soil to stabilize it. Keep the soil sample sampling position consistent with the bottom and top of the well. Press down on the standard loess soil sample automatic rotary cutting and shaping sampling device, and at the same time start the drive mechanism to keep the sampler 9 rotating at a uniform speed. The preliminary cutting tool 14 rotates synchronously under the drive of the sampler 9. The preliminary cutting tool 14 moves downward so that the soil sample it has been rotary-shaped twice by the sampler 9 enters the standard sample box 11. Stop the drive mechanism, then remove the sampler 9 from the overall sleeve 16, and take out the standard sample box 11 containing the soil sample from the sampler 9.

[0032] This invention, through the design of a sampler and a preliminary sampler, facilitates the acquisition of loess soil samples under the drive of a driving mechanism, resulting in regular and uniform samples that save time and effort. By incorporating a standard sample box within the soil sampler, the loess samples obtained by the preliminary sampler and soil sampler are directly packed into the box, avoiding sample breakage during subsequent packing. The dual cutting action of the soil sampler and the preliminary sampler further enhances the regularity and standardization of the acquired soil samples.

[0033] Example 2:

[0034] Reference Figure 1The above describes a standard loess soil sample automatic rotary forming sampling device. Based on Embodiment 1, the integral sleeve 16 is a ring-shaped structure made of stainless steel. The upper inner side wall of the integral sleeve 16 is provided with a connecting groove 4 for connecting the drive mechanism. The side wall below the connecting groove 4 of the integral sleeve 16 is provided with a thread for connecting the sampler 9. The middle side wall of the integral sleeve 16 is provided with a through hole, and a handle is connected to the through hole.

[0035] In practical use, the integral sleeve 16 serves to connect the drive mechanism and the sampler 9 together. The integral sleeve 16, employing this technical solution, conveniently realizes its function.

[0036] In this embodiment, the overall sleeve is made of stainless steel plate with a thickness of 3.0mm. This not only enables it to connect the drive mechanism and the sampler 9 together, but also meets the strength requirements.

[0037] In this embodiment, the integral sleeve 16 and the sampler 9 are connected by connecting threads 5, which makes it easier to connect and disassemble the integral sleeve 16 and the sampler 9.

[0038] In this embodiment, the integral sleeve 16 is made of high-strength stainless steel to ensure the strength requirements during implementation.

[0039] Example 3:

[0040] Reference Figure 1 The above describes a standard loess soil sample automatic rotary forming and sampling device. Based on Embodiment 2, the holding part is a handle 8; two handles 8 are provided; the two handles 8 are symmetrically fixed on the outer wall of the middle part of the integral sleeve 16, and one of the handles 8 is provided with a control button 7, which is electrically connected to the drive mechanism.

[0041] In practical use, the handle 8 is provided, making it more convenient and effective to press down the automatic rotary shaping and sampling device for standard loess soil samples in the field. The control button 7 is directly located on the handle 8, allowing the operator to more easily control the start / stop, speed, and pressure of the drive mechanism according to the actual situation on site.

[0042] In this embodiment, the control button 7 is connected to the drive mechanism via signal line 2 for signal transmission. Signal line 2 and power line are connected to the drive mechanism through through holes provided on the side wall of the central part of the integral sleeve 16.

[0043] Example 4:

[0044] Reference Figure 1The above describes a standard loess soil sample automatic rotary forming and sampling device. Based on Embodiment 1, the driving mechanism includes a housing and a motor 3. The motor 3 is installed inside the housing and is fixedly connected to the sampler 9 installed on the integral sleeve 16. An integrated controller is connected to the motor 3, and the controller is electrically connected to the control button 7. The integrated controller includes at least an adjustment module for adjusting the speed of the motor 3, a pressure control module for adjusting the pressure of the motor 3, and a steering control module for adjusting the rotation direction of the motor 3.

[0045] In practical use, the drive mechanism adopts this technical solution, which can perform different operations as needed, making sampling more convenient.

[0046] In this embodiment, the motor 3 is a high-power, low-speed AC / DC motor. Using a high-power, low-speed AC / DC motor ensures the integrity and efficiency of the sampling.

[0047] Example 5:

[0048] Reference Figure 1 The above describes an automatic rotary cutting and shaping sampling device for standard loess soil samples. Based on Embodiment 1, the sampler 9 includes at least a sampler sleeve 10. The sampler sleeve 10 is a ring-shaped structure made of stainless steel. A connector 6 for connecting to a drive mechanism is connected to the upper part of the sampler sleeve 10. The upper outer wall of the sampler sleeve 10 is provided with threads for connecting to the integral sleeve 16. An annular platform is provided on the lower inner wall of the sampler sleeve 10. A concave groove is provided on the upper surface of the annular platform. A standard sample box 11 is connected to the concave groove. The upper outer wall of the standard sample box 11 is provided with threads for threaded connection to the inner wall of the sampler 9. A sampler blade 13 is provided at the lower end of the sampler sleeve 10. A connecting part 12 for connecting to a preliminary cutting tool 14 is provided on the lower outer wall of the sampler sleeve 10.

[0049] Furthermore, the connector 6 includes multiple spokes and a shaft disk; the upper end of each spoke is evenly connected to the shaft disk, the lower end of each spoke is connected to the sampler sleeve 10, and the shaft disk is connected to the drive mechanism.

[0050] Furthermore, the connecting part 12 is an annular protrusion, and the side of the protrusion is fixedly connected to the preliminary sample cutter 14.

[0051] In actual use, the height of the sampler blade 13 is set to 0.5cm-1.5cm. The blade is outward-sharpened and has a smooth transition with a medium-spacing spiral cutting edge. When cutting soil, the thin tip first inserts into the soil, and then the spiral cutting edge pushes the soil closely behind, ensuring that the soil does not crack. 2.0cm above this is a concave platform with a width of 2.5mm. The downward-facing end of the standard sample box 11 is placed inside the concave platform.

[0052] In this embodiment, 8-10 spokes are provided, and the specific number can be selected according to actual needs.

[0053] The sampler blade 13 is designed to perform secondary shaping on the soil sample cut by the initial sampler 14, making the obtained soil sample more standardized.

[0054] The connector 6 and the connecting part 12 make the connection between the sampler 9 and the drive mechanism and the preliminary sampler 14 more convenient and stable.

[0055] Example 5:

[0056] Reference Figure 1 The above describes a standard loess soil sample automatic rotary cutting and shaping sampling device. Based on Embodiment 1, the preliminary cutting tool 14 is a circular cup-shaped structure with a preliminary cutting tool blade 15 at its lower end and a circular opening at its upper part. A ring connecting arm for fixed connection with the sampler 9 is vertically arranged on the edge of the circular opening.

[0057] In this embodiment, the preliminary sample cutter 14 is set on the outer wall of the sampler 9 at a distance of 3-4 cm from its lower port. It is made of circular stainless steel, with a diameter 4 cm larger than that of the soil sampler, and extends downward 3 cm from the lower end of the soil sampler. The blade 15 of the preliminary sample cutter is set in the same way as that of the sampler 9.

[0058] After initial rotary cutting by the preliminary sampler 14, the soil sample is then subjected to secondary rotary cutting by the sampler 9, making the obtained soil sample more regular in shape.

[0059] Example 6:

[0060] Reference Figure 1 The above describes a standard loess soil sample automatic rotary forming sampling device. Based on Embodiment 1, the standard sample box 11 has a circular cup-shaped structure; its open end is provided with a shoulder, and the port of the shoulder is connected to the sampler 9.

[0061] In practical use, the standard sample box 11 adopts this technical solution, which can not only be easily connected to the sampler 9, but also conveniently pack the soil sample that has been shaped twice by the preliminary sampler 14 and the sampler 9, thus avoiding damage to the soil sample caused by secondary packing.

[0062] Example 7:

[0063] A sampling method using a standard loess soil sampler with an automated rotary cutting and shaping device includes the following steps.

[0064] Step 1: Remove the sampler 9 from the overall sleeve 16, put the standard sample box 11 into the sampler 9, and then connect and fix the sampler 9 with the standard sample box 11 to the overall sleeve 16.

[0065] Step 2: Vertically lift the standard loess soil sample automatic rotary cutting and shaping sampling device, place the preliminary cutting device 14 vertically on the loess to be sampled, press down the standard loess soil sample automatic rotary cutting and shaping sampling device, start the drive mechanism, keep the sampler 9 rotating at a uniform speed, the sampler 9 drives the preliminary cutting device 14 to rotate, the preliminary cutting device 14 moves downward, so that the soil sample it rotary cuttings is shaped twice by the sampler 9 and enters the standard sample box 11.

[0066] Step 3: Stop the drive mechanism, remove the sampler 9 from the overall sleeve 16, and take out the standard sample box 11 containing the soil sample from the sampler 9.

[0067] The technical solution of this invention solves many problems, such as the irregular shape of the undisturbed soil samples taken from wells, requiring secondary shaping into standard-sized undisturbed soil samples, resulting in long processing times, inconsistent soil sample cutting, and easy breakage during cutting. This invention automatically and standardly obtains, shapes, and boxes loess soil samples, effectively reducing processing time and sample breakage rate. The cut soil samples are completely standardized and simultaneously boxed. The device is also simple, lightweight, easy to operate, and automated.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0069] Where there is no conflict, those skilled in the art can combine the relevant technical features in the above examples according to the actual situation to achieve the corresponding technical effects. Specific details of the various combinations will not be elaborated here.

[0070] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0071] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modifications, equivalent variations, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A standard loess soil sample field automatic rotary cutting forming sampling device, characterized in that: It includes a whole sleeve (16), a driving mechanism, a sampler (9) and a preliminary cutter (14); the driving mechanism and the sampler (9) are detachably connected in the whole sleeve (16) from top to bottom; the preliminary cutter (14) is connected to the lower part of the sampler (9); a standard sample box (11) is arranged in the sampler (9); The sampler (9) at least includes a sampler sleeve (10); the sampler sleeve (10) is a circular ring structure made of stainless steel; a connector (6) for connecting with the driving mechanism is connected to the upper part of the sampler sleeve (10); a thread for connecting with the whole sleeve (16) is arranged on the outer side wall of the upper part of the sampler sleeve (10); an annular platform is arranged on the inner side wall of the lower part of the sampler sleeve (10); a concave groove is arranged on the upper surface of the annular platform; a standard sample box (11) is connected in the concave groove; a thread for screwing with the inner side wall of the sampler (9) is arranged on the outer side wall of the upper part of the standard sample box (11); a sampler knife edge (13) is arranged at the lower end of the sampler sleeve (10); a connecting part (12) for connecting with the preliminary cutter (14) is arranged on the outer side wall of the lower end of the sampler sleeve (10). The whole sleeve (16) is a circular ring structure made of stainless steel; a connecting groove (4) for connecting with the driving mechanism is arranged on the inner side wall of the upper part of the whole sleeve (16); a thread for connecting with the sampler (9) is arranged on the side wall below the connecting groove (4); a through hole is arranged on the middle side wall of the whole sleeve (16); a holding part is connected to the through hole.

2. The standard loess soil sample field automatic rotary cutting and forming sampling device according to claim 1, characterized in that: The holding part is a handle (8); two handles (8) are arranged; the two handles (8) are symmetrically fixed on the middle outer side wall of the whole sleeve (16); a control button (7) is arranged on one of the handles (8); the control button (7) is electrically connected with the driving mechanism.

3. The standard loess soil sample field automatic rotary cutting and forming sampling device according to claim 1, characterized in that: The driving mechanism includes a shell and a motor (3); the motor (3) is arranged in the shell; the motor (3) is fixedly connected with the sampler (9) arranged on the whole sleeve (16); an integrated controller is connected to the motor (3); the controller is electrically connected with the control button (7); the integrated controller at least includes an adjusting module for adjusting the rotating speed of the motor (3), a pressure control module for adjusting the pressure of the motor (3) and a steering control module for adjusting the rotating direction of the motor (3).

4. The standard loess soil sample field automatic rotary cutting and forming sampling device according to claim 1, characterized in that: The connector (6) includes a plurality of spokes and a shaft disc; the upper end of each spoke is uniformly connected to the shaft disc; the lower end of each spoke is connected to the sampler sleeve (10); the shaft disc is connected with the driving mechanism.

5. The standard loess soil sample field automatic rotary cutting and forming device according to claim 1, characterized in that: The connecting part (12) is a ring-shaped protrusion; the side surface of the protrusion is fixedly connected with the preliminary cutter (14).

6. The standard loess soil sample field automatic rotary cutting and forming device according to claim 1, characterized in that: The preliminary cutter (14) is a circular cup structure; a preliminary cutter knife edge (15) is arranged at the lower end of the preliminary cutter (14); a circular opening is arranged on the upper part of the preliminary cutter (14); a ring-shaped connecting arm for fixedly connecting with the sampler (9) is vertically arranged on the edge of the circular opening.

7. The standard loess soil sample field automatic rotary cutting and forming device according to claim 1, characterized in that: The standard sample box (11) is circular cup-shaped structure; its open end is provided with a shoulder, and the port of the shoulder is connected to the sampler (9).

8. The method according to any one of claims 1-7, wherein the device is a standard loess soil sample field automatic rotary cutting forming sampling device. It comprises the following steps, Step one: the sampler (9) is taken off from the integral sleeve (16), the standard sample box (11) is put into the sampler (9), and then the sampler (9) with the standard sample box (11) is connected and fixed with the integral sleeve (16); Step two: the standard loess soil sample field automatic rotary cutting forming sampling device is vertically lifted, the preliminary sample cutter (14) is vertically placed on the loess to be sampled, the standard loess soil sample field automatic rotary cutting forming sampling device is pressed down, the driving mechanism is started, the sampler (9) is kept rotating at a constant speed, the sampler (9) drives the preliminary sample cutter (14) to rotate, the preliminary sample cutter (14) moves downward, so that the soil sample rotated by the preliminary sample cutter (14) is formed again by the sampler (9) and then enters the standard sample box (11); Step three: the driving mechanism is stopped, the sampler (9) is taken off from the integral sleeve (16), and the standard sample box (11) with the soil sample in the sampler (9) is taken out.

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