Earth sampling device for detecting earthwork compactness

Abstract

The invention relates to the technical field of water conservancy projects, and discloses an earthwork compactness detection soil sampling device which comprises two mounting shells oppositely arranged on the side wall of a sleeve; the cutting ring is embedded in the sleeve, an annular groove is formed below the cutting ring in the sleeve, and a through hole communicated with the mounting shell is formed in the annular groove; the cutting piece comprises two sliding blocks and two cutting wires, the two sliding blocks are horizontally connected to the bottoms of inner cavities of the two mounting shells in a sliding mode respectively, the two cutting wires are both semicircular, the two cutting wires jointly form a circle to be embedded in the annular groove, and the two ends of the two cutting wires penetrate through the through holes respectively to be connected with the sliding blocks; the press-in piece is connected with the sleeve; the driving piece is connected with the two sliding blocks and is used for driving the two sliding blocks to move in the direction away from the sleeve, so that the two cutting wires are tensioned to cut the soil sample; according to the soil sampling device for detecting the earthwork compactness, on the basis that disturbance of a soil sample in the cutting ring is avoided, the soil sample and a soil body can be rapidly separated, the soil sampling process is easy to operate, and high convenience is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to an earthwork compaction degree detection and earth-taking device. Background Art

[0002] In the soil sampling operation for testing the compaction of earthwork in water conservancy projects, the sampling ring knife is the most commonly used soil sampling tool. The density of the soil sample obtained by the ring knife can be calculated, and the compaction of the earthwork can be judged by the density.

[0003] In the process of taking soil with a ring knife, in order to ensure the accuracy of the test results, it is required to avoid disturbing the soil sample inside the ring knife when taking out the ring knife. Based on this requirement, the current common practice is to gradually peel off the soil around the ring knife after the ring knife is pressed into the soil, and then use a cutting knife to cut the soil sample from under the ring knife. During the process of cutting the soil sample with the cutting knife, due to a certain friction between the knife body and the soil sample, the local soil sample will be squeezed or the soil sample will be broken due to adhesion to the knife body, and the whole process of peeling and cutting is time-consuming and laborious. Summary of the invention

[0004] The present invention proposes a soil compaction detection and soil sampling device to solve the deficiencies in the above-mentioned prior art. The soil compaction detection and soil sampling device can quickly separate the soil sample from the soil body from the bottom of the ring cutter without disturbing the soil sample in the ring cutter, thereby ensuring the accuracy of the detection result.

[0005] The technical solution of the present invention is: a soil compaction detection and soil taking device, comprising a ring cutter, and also comprising:

[0006] The sleeve has two mounting shells on its side walls facing each other; the ring cutter is embedded in the sleeve, an annular groove is provided below the ring cutter in the sleeve, and a through hole communicating with the inner cavity of the mounting shell is provided in the annular groove;

[0007] The cutting member comprises two sliders and two cutting wires. The two sliders are respectively connected to the two mounting shells in a horizontal sliding manner. The two cutting wires are both semicircular in shape. The two cutting wires together form a circle and are embedded in the annular groove. The two ends of the two cutting wires are respectively connected to the sliders through the through holes.

[0008] A press-in piece, connected to the sleeve, and used for pressing the sleeve into the soil;

[0009] The driving member is connected to the two sliding blocks and is used for driving the two sliding blocks to move in a direction away from the sleeve so that the two cutting wires are tensioned to cut the soil sample.

[0010] In at least one embodiment of the present invention, a cover is detachably connected to the top of the sleeve, a first internally threaded tube is provided on the top of the cover, and the press-in member includes:

[0011] The bottom plate is provided with a circular hole, and the two sides of the circular hole are connected with strip holes. The two sides of the circular hole on the bottom plate are provided with columns, the sleeve is slidably connected with the circular hole, and the mounting shell is slidably connected with the strip hole.

[0012] A carrier plate is horizontally arranged on the top of the column;

[0013] A screw rod, the bottom end of which is threadedly connected to the first internally threaded pipe;

[0014] The driving motor is arranged on the carrier plate, and the rotating shaft of the driving motor passes through the carrier plate and is connected with the lead screw.

[0015] In at least one embodiment of the present invention, the driving member includes:

[0016] A pressure ring, mounted on the sleeve;

[0017] Two pressure rods are longitudinally arranged at the bottom end of the pressure ring, and the two pressure rods are respectively inserted into the two installation shells;

[0018] Two hinged rods are respectively arranged in the two mounting shells, one end of the hinged rod is hinged to the pressure rod, and the other end of the hinged rod is hinged to the slider;

[0019] The pressing sleeve has ear plates on both sides opposite to each other, and the two uprights pass through the two ear plates respectively. The pressing sleeve is provided with a second internally threaded tube, and the second internally threaded tube is threadedly connected with the screw rod.

[0020] In at least one embodiment of the present invention, an embedding groove is provided above the annular groove on the inner wall of the sleeve, the embedding groove passes through toward the top of the sleeve, the ring cutter is embedded in the embedding groove, and the inner wall of the ring cutter is flush with the sleeve.

[0021] In at least one embodiment of the present invention, the cover is threadedly connected to the top of the sleeve, a connecting seat is provided at the top of the cover, and the first internally threaded pipe is threadedly connected to the connecting seat.

[0022] In at least one embodiment of the present invention, the upper part of the inner cavity of the first internally threaded tube is a light hole portion. When the top end of the ring cutter in the sleeve is flush with the bottom surface of the base plate, the bottom end of the screw rod is screwed into the light hole portion of the first internally threaded tube. At this time, the ring cutter in the sleeve is just filled with the soil sample.

[0023] In at least one embodiment of the present invention, a connecting ring is provided above the top of the ring cutter, a connecting block embedded in the connecting ring is provided at the bottom of the cover, the bottom of the connecting block is flush with the connecting ring, and a through hole penetrating the cover is provided on the connecting block.

[0024] In at least one embodiment of the present invention, the bottoms of the two mounting shells and the sleeve are both provided with cutting edges.

[0025] In at least one embodiment of the present invention, handles are disposed on opposite sides of the carrier plate, and a plurality of fixing cones are disposed at the bottom end of the bottom plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention provides a sleeve with two mounting shells, a cutting member composed of a slider and a cutting wire, a pressing member for pressing the sleeve into the soil body, and a driving member for driving the slider to slide. When the soil sampling device is in use, the sleeve is moved to the sampling position, and then the sleeve and the two mounting shells are pressed into the soil body by the pressing member. When the soil sample fills the ring cutter, the driving member is used to drive the two sliders to move in a direction away from the sleeve, so that the two sliders drive the two cutting wires to gradually tighten and cut the soil body from the bottom of the ring cutter. Since the soil sampling device for detecting soil compaction degree uses the cutting wire, in the process of cutting the soil body and the soil sample, only a very small and negligible friction force is generated between the cutting wire and the soil sample, which can prevent the local soil sample from being squeezed or falling off due to adhesion to the knife body. Under the condition of avoiding disturbing the soil sample in the ring cutter, the soil sample and the soil body are quickly separated from the bottom of the ring cutter, and a standard and easy-to-calculate soil sample can be obtained without secondary cutting of the soil sample, and the sampling convenience is high.

[0028] 2. The present invention arranges a first internal threaded tube on the sleeve, and arranges a pressing piece consisting of a base plate, a carrier plate, a screw and a driving motor. During the process of using the device to take soil, the screw is driven to rotate by the driving motor, so that the screw is gradually screwed out of the first internal threaded tube, and downward pressure is applied to the sleeve, and then the sleeve is pressed into the soil. Compared with the traditional method of pressing the ring cutter into the soil by knocking, the use of the pressing piece is simple and quick in the pressing process, and the pressing force and the direction of action are constant. The soil sample in the ring cutter will not be disturbed due to the deviation of the knocking force, thereby ensuring the accuracy of the detection result.

[0029] 3. The present invention sets a driving part composed of a pressure ring, a pressure rod, a hinged rod and a pressure sleeve. After the driving motor presses the sleeve into the soil through the screw rod, the driving motor continuously drives the screw rod to rotate, so that the screw rod drives the pressure sleeve to gradually move downward through the second internal threaded tube, and then the pressure sleeve is abutted against the pressure ring to press the pressure rod downward, so that the pressure rod pushes the slider to move through the hinged rod, and then the cutting wire is tensioned to complete the cutting of the soil by the cutting wire. In the process of taking soil, the whole device only needs to control the continuous rotation of the driving motor to complete the pressing of the sleeve, drive the cutting wire to cut the soil sample and subsequently pull the ring knife out of the soil. In the process of taking soil, the whole device is simple to operate and has high soil taking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The main cross-sectional view of the present invention is shown in FIG. Figure 1 ;

[0031] Figure 2 For the present invention Figure 1 Schematic diagram of local structure;

[0032] Figure 3 It is a schematic diagram of a top view and cross-sectional structure of the present invention;

[0033] Figure 4 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0034] Figure 5 It is a side view structural schematic diagram of the present invention;

[0035] Figure 6 The main cross-sectional view of the present invention is shown in FIG. Figure 2 .

[0036] Description of reference numerals:

[0037] 1. Ring cutter; 2. Sleeve; 21. Mounting shell; 22. Annular groove; 23. Cover; 231. First internally threaded tube; 232. Connecting seat; 233. Connecting block; 234. Through hole; 24. Mounting groove; 3. Cutting piece; 31. Sliding block; 32. Cutting wire; 4. Press-in piece; 41. Bottom plate; 411. Post; 412. Fixed cone; 42. Carrier plate; 43. Screw rod; 44. Driving motor; 5. Driving piece; 51. Pressing ring; 52. Pressing rod; 53. Articulated rod; 54. Pressing sleeve; 541. Ear plate; 542. Second internally threaded tube. DETAILED DESCRIPTION

[0038] The drawings in the present invention are not drawn strictly according to the actual scale, and the specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structures.

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Inside", "outside", "up", "down", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] In the soil sampling method of the prior art, when using a ring cutter to sample soil, in order to ensure the accuracy of the test results, it is required to avoid disturbing the soil sample inside the ring cutter when taking it out. Based on this requirement, the current common practice is to gradually peel off the soil around the ring cutter, and then take out the ring cutter carrying the soil sample without disturbing the soil sample. However, this sampling process is time-consuming and labor-intensive, and the efficiency of soil sampling is low.

[0042] In order to solve the above problems, a soil compaction detection and soil sampling device with inclined plug plates has appeared in the prior art. This soil compaction detection and soil sampling device is provided with inclined plug plates on both sides of the soil sampling ring knife. During the soil sampling process, after the ring knife is extended into the soil body, the inclined plug plates on both sides of the ring knife are inclinedly inserted under the ring knife, and the bottom ends of the two inclined plug plates are abutted, and then the two inclined plug plates and the ring knife are taken out of the soil body together, so that the soil body and the soil sample can be quickly separated without disturbing the soil sample. Although this soil compaction detection and soil sampling device Compared with the soil sampling method of stripping the soil around the ring cutter, it can quickly separate the soil from the soil sample, and improve the soil sampling efficiency. However, the soil sample obtained by this compaction detection soil sampling device is conical, and its volume cannot be calculated. Therefore, before the compaction detection, it is still necessary to perform a secondary cutting of the soil sample from under the ring cutter to obtain a standard and easy-to-calculate soil sample. Once the secondary cutting is performed carelessly (for example: cutting off the soil sample in the ring cutter or compressing the soil sample in the ring cutter), it will cause disturbance of the soil sample again, thereby affecting the accuracy of the detection structure.

[0043] In view of this, the present invention proposes a soil compaction detection and soil sampling device, which can quickly separate the soil sample from the soil body from the bottom of the ring cutter while avoiding disturbance of the soil sample in the ring cutter, so as to quickly obtain a standard and easy-to-calculate soil sample, thereby ensuring the accuracy of the detection result. The entire soil sampling process is simple to operate and has high soil sampling efficiency.

[0044] Combination Figures 1 to 6 As shown, a soil compaction detection and soil sampling device comprises:

[0045] Ring knife 1; specifically, the ring knife 1 in this embodiment is a cylindrical hollow ring, and the ring knife 1 is not provided with a soil breaking blade;

[0046] Two mounting shells 21 are oppositely provided on the side walls of the sleeve 2, and both mounting shells 21 are longitudinally elongated rectangular shells, and both mounting shells 21 are located on the extension line of the same diameter line of the sleeve 2; the ring knife 1 is embedded in the sleeve 2, and an annular groove 22 is provided below the ring knife 1 in the sleeve 2, and a through hole connected to the inner cavity of the mounting shell 21 is provided in the annular groove 22; the specific transition area between the inner wall of the through hole and the inner wall of the sleeve 2 is rounded to avoid the transition part of the through hole causing wear to the cutting wire 32.

[0047] The cutting piece 3 includes two sliders 31 and two cutting wires 32. The two sliders 31 are horizontally slidably connected to the bottom of the inner cavity of the two mounting shells 21. The two cutting wires 32 are both semicircular. The two cutting wires 32 together form a circle embedded in the annular groove 22. The two cutting wires 32 are circularly embedded in the annular groove 22. The two ends of the two cutting wires 32 are respectively connected to the sliders 31 through through holes. Specifically, the cutting wires 32 are carbon spring steel wires, which have high tensile strength, elastic limit, toughness and fatigue strength. The two cutting wires 32 are semicircular when no tension is applied, so that the cutting wires 32 can be embedded in the annular groove 22.

[0048] The press-in piece 4 is connected to the sleeve 2, and is used to press the sleeve 2 into the soil. Specifically, the specific structure of the press-in piece 4 may adopt other forms of press-in pieces 4 such as hydraulic cylinders in addition to the forms given below.

[0049] The driving member 5 is connected to the two sliders 31, and the driving member 5 is used to drive the two sliders 31 to move in the direction away from the sleeve 2, so that the two cutting wires 32 are tensioned to cut the soil sample; when the two cutting wires 32 are tensioned, the two cutting wires 32 are attached to the same diameter line of the sleeve 2, so as to achieve complete cutting of the soil body and the soil sample entering the ring knife 1, so that after the sleeve 2 is separated from the soil body, the soil sample in the sleeve 2 will not be disturbed due to partial adhesion.

[0050] As an alternative embodiment, the top of the sleeve 2 is detachably connected to a cover 23, and the top of the cover 23 is provided with a first internally threaded tube 231. The press-in member 4 includes: a bottom plate 41, a carrier plate 42, a screw rod 43 and a drive motor 44. The bottom plate 41 is provided with a circular hole, and the two sides of the circular hole are connected with strip holes. The two sides of the circular hole on the bottom plate 41 are provided with columns 411. The sleeve 2 is slidably connected to the circular hole, and the mounting shell 21 is slidably connected to the strip hole; the carrier plate 42 is horizontally arranged on the top of the column 411. end; the bottom end of the screw rod 43 is threadedly connected with the first internal threaded tube 231; the driving motor 44 is arranged on the carrier plate 42, and the rotating shaft of the driving motor 44 passes through the carrier plate 42 and is connected with the screw rod 43; during the rotation of the driving motor 44, since the carrier plate 42 and the bottom plate 41 are connected by the column 411, the driving motor 44 drives the screw rod 43 to rotate, the carrier plate 42 remains stationary, and the screw rod 43 is rotated out to give downward pressure to the sleeve 2, thereby gradually pressing the sleeve 2 into the soil.

[0051] As an alternative embodiment, the driving member 5 includes: a pressing ring 51, two pressing rods 52, two hinged rods 53 and a pressing sleeve 54. The pressing ring 51 is sleeved on the sleeve 2, and the pressing ring 51 and the sleeve 2 are clearance-matched. The inner diameter of the pressing ring 51 is larger than the outer diameter of the cover 23; the two pressing rods 52 are longitudinally arranged at the bottom end of the pressing ring 51, and the two pressing rods 52 are respectively inserted into the two mounting shells 21; the two hinged rods 53 are respectively arranged in the two mounting shells 21, one end of the hinged rod 53 is hinged to the pressing rod 52, and the other end of the hinged rod 53 is hinged to the slider 31; ear plates 541 are oppositely arranged on both sides of the pressing sleeve 54, and the two columns 411 respectively pass through the two ear plates 541, and the columns 41 1 is slidably connected with the ear plate 541. The setting of the column 411 and the ear plate 541 prevents the pressing sleeve 54 from rotating with the rotation of the screw rod 43. The pressing sleeve 54 is provided with a second internally threaded tube 542, and the second internally threaded tube 542 is threadedly connected with the screw rod 43. When the screw rod 43 rotates, the screw rod 43 drives the pressing sleeve 54 to move up and down through the second internally threaded tube 542. When the pressing sleeve 54 moves downward, the pressing sleeve 54 gradually abuts against the pressing ring 51, and the pressing ring 51 moves downward. In the process of the pressing ring 51 moving downward, the pressing rod 52 pushes the slider 31 to move through the hinge rod 53, and the two sliders 31 drive the two cutting wires 32 to be gradually tightened to cut the soil sample.

[0052] As an alternative embodiment, an embedding groove 24 is provided above the annular groove 22 on the inner wall of the sleeve 2, and the embedding groove 24 passes through the top of the sleeve 2. The ring knife 1 is embedded in the embedding groove 24. The embedding groove 24 is arranged so that the ring knife 1 carrying the soil sample can be smoothly taken out of the sleeve 2. The inner wall of the ring knife 1 is flush with the sleeve 2. The flush limitation of the inner wall ensures that the inner wall of the sleeve 2 is smooth, and thus the soil sample will not be disturbed by the transition of the inner wall of the sleeve 2 during the sampling process, so as to ensure the accuracy of the final test result.

[0053] As an alternative embodiment, the cover 23 is threadedly connected to the top of the sleeve 2 to facilitate disassembly of the cover 23 and removal of the ring cutter 1 and the soil sample. A connecting seat 232 is provided at the top of the cover 23, and the first internal threaded tube 231 is threadedly connected to the connecting seat 232; the setting of the connecting seat 232 provides a second solution for the device to disassemble the sleeve 2. In addition to the disassembly solution of completely unscrewing the screw rod 43 out of the first internal threaded tube 231, the first internal threaded tube 231 can also be directly removed from the connecting seat 232 to achieve rapid disassembly of the sleeve 2, and then the ring cutter 1 carrying the soil sample is conveniently taken out of the sleeve 2 in the disassembled state, and then the next step of detection work is carried out.

[0054] As an alternative embodiment, the upper part of the inner cavity of the first internal threaded tube 231 is a light hole portion. Specifically, the light hole portion is the portion without threads in the first internal threaded tube 231. When the top of the ring cutter 1 in the sleeve 2 is flush with the bottom surface of the base plate 41, the bottom end of the screw rod 43 is screwed into the light hole portion of the first internal threaded tube 231. At this time, the ring cutter 1 in the sleeve 2 is just filled with the soil sample, and the arrangement of the light hole portion on the first internal threaded tube 231 makes it easy for the pressing sleeve 54 to move on the screw rod 43. The screw rod 43 is always located in the first internal threaded tube 231 to ensure the stability of the entire device when the pressing sleeve 54 moves. At the same time, the arrangement of the light hole portion on the first internal threaded tube 231 can prevent the press-in part 4 from pressing the sleeve 2 excessively, thereby avoiding compression of the soil sample in the ring cutter 1, thereby affecting the accuracy of the test result.

[0055] As an alternative embodiment, a connecting ring 11 is provided on the top of the ring cutter 1. The setting of the connecting ring 11 makes it easy for the staff to remove the ring cutter 1 from the sleeve 2 through the connecting ring 11. Specifically, a pull ring can be welded on the top of the connecting ring 11. A connecting block 233 embedded in the connecting ring 11 is provided at the bottom of the cover 23. The bottom of the connecting block 233 is flush with the connecting ring 11. The flush limitation ensures that only a constant volume of soil sample can enter the ring cutter 1 to facilitate the subsequent calculation of the soil sample density; and a clamping ring or a clamping block abutting the top of the connecting ring 11 is provided on the connecting block 233. The clamping ring or the clamping block is used to limit the movement of the ring cutter 1 during the tightening of the cover 23, so as to prevent the ring cutter 1 from moving due to the friction of the soil sample during the soil taking process, thereby disturbing the soil sample. A through hole 234 penetrating the cover 23 is provided on the connecting block 233, and the through hole 234 is used for exhaust to prevent the enclosed gas in the sleeve 2 from disturbing the soil sample.

[0056] As an alternative embodiment, horizontal guide grooves are provided on the inner walls of the two mounting shells 21, and embedded blocks embedded in the guide grooves are provided on the two sliders 31. Lubricating oil is added to the two mounting shells 21, and the lubricating oil can lubricate the sliders 31 to make the movement of the sliders 31 smoother, thereby avoiding excessive friction between the sliders 31 and the inner walls of the mounting shells 21, thereby affecting the sliders 31 to drive the cutting wires 32 to cut the soil sample.

[0057] As an alternative embodiment, the bottoms of the two mounting shells 21 and the sleeve 2 are provided with cutting blades for breaking the soil. The setting of the cutting blades facilitates the mounting shell 21 and the sleeve 2 to be pressed into the soil. The setting of the cutting blades enables the sleeve 2 and the mounting shell 21 to be smoothly pressed into the soil under the action of a relatively small pressing force. Specifically, a cutting blade is ground on the bottom end of the outer wall of the sleeve 2. The setting of the cutting blade on the bottom end of the outer wall of the sleeve 2 avoids interference with the soil sample entering the sleeve 2 due to the direction of the cutting blade when the sleeve 2 is pressed into the soil. A cutting angle is provided on the side of the bottom cutting blade of the mounting shell 21. The design of the cutting angle can reduce the resistance of the mounting shell 21 entering the soil.

[0058] As an alternative embodiment, handles are provided on both sides of the carrier plate 42. During the sampling process, the staff holds the handles to ensure the stability of the device during operation. Specifically, the control switch and the forward and reverse switch of the drive motor 44 are arranged on the handles to facilitate the staff to control the drive motor 44. A plurality of fixed cones 412 are provided at the bottom end of the base plate 41; the fixed cones 412 can be pressed into the ground to stabilize the device on the soil to prevent the base plate 41 from shifting during the sampling process, causing the sampling point to shift, thereby affecting the normal progress of the sampling work.

[0059] The working principle and usage of this embodiment:

[0060] The present invention provides a soil compaction detection and soil sampling device. When the soil compaction detection and soil sampling device is used, the device is moved to a sampling position, and then the bottom plate 41 is attached to the ground at the sampling position, and the bottom plate 41 is stepped on so that the fixed cone 412 is embedded in the ground. Then, the staff holds the handle on the carrier plate 42 and starts the drive motor 44. The drive motor 44 drives the screw rod 43 to rotate, so that the screw rod 43 is gradually screwed out of the first internal threaded tube 231. Since the carrier plate 42 and the bottom plate 41 are connected through the column 411, the drive motor 44 drives the screw rod 4 During the rotation of the carrier plate 42, the screw rod 43 is rotated out to give downward pressure to the sleeve 2, thereby gradually pressing the sleeve 2 into the soil. During the gradual pressing of the sleeve 2 into the soil, the soil sample gradually enters the ring cutter 1 in the sleeve 2, and the compressed air in this process is discharged from the through hole 234 to prevent the compressed air from disturbing the soil sample. After the soil sample completely fills the ring cutter 1, the screw rod 43 just rotates to the light hole part of the first internal threaded tube 231, and then the driving motor 44 is continuously controlled to rotate. During the rotation of the screw rod 43, due to the pressure The sleeve 54 is connected to the screw rod 43 through the second internal threaded tube 542, and the pressing sleeve 54 is slidably connected to the column 411, and then during the rotation of the screw rod 43, the pressing sleeve 54 is gradually driven to move downward, so that the pressing sleeve 54 gradually abuts against the pressing ring 51, and the pressing ring 51 moves downward. During the downward movement of the pressing ring 51, the pressing rod 52 pushes the slider 31 to move through the hinge rod 53, and the two sliders 31 drive the two cutting wires 32 to be gradually tightened, so that the cutting wires 32 cut the soil sample from the bottom of the ring knife 1. After the device completes the cutting of the soil sample , start the drive motor 44 to reverse, so that the screw rod 43 and the first internal threaded tube 231 are threadedly connected again, and the sleeve 2 carrying the soil sample is driven to gradually leave the soil. After the sleeve 2 completely leaves the soil, the device is laid down, and then the drive motor 44 is started to rotate forward, so that the screw rod 43 and the first internal threaded tube 231 are disengaged from the threaded connection again, and then the entire sleeve 2 can be disassembled from the device, and then the cover 23 on the sleeve 2 can be opened to remove the ring knife 1 carrying the soil sample from the sleeve 2, thereby obtaining a complete and undisturbed soil sample, which is convenient for the subsequent detection procedure.

[0061] The above embodiments are only specific implementation methods of the patent of the present invention, which are used to illustrate the technical solution of the patent of the present invention rather than to limit it. The protection scope of the patent of the present invention is not limited thereto. Although the patent of the present invention is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution for implementing the patent of the present invention, and should be covered within the protection scope of the present invention.

Claims

1. A soil compaction detection and soil sampling device, comprising a ring cutter (1), characterized in that: Also includes: The sleeve (2) has two mounting shells (21) disposed on its side walls facing each other; the ring cutter (1) is embedded in the sleeve (2); an annular groove (22) is disposed below the ring cutter (1) in the sleeve (2); a through hole communicating with the mounting shell (21) is disposed in the annular groove (22); The cutting member (3) comprises two sliders (31) and two cutting wires (32), wherein the two sliders (31) are respectively connected to the two mounting shells (21) in a horizontal sliding manner, and the two cutting wires (32) are both semicircular in shape, and the two cutting wires (32) together form a circular shape embedded in the annular groove (22), and the two ends of the two cutting wires (32) respectively pass through the through holes and are connected to the sliders (31); A pressing piece (4) connected to the sleeve (2) and used for pressing the sleeve (2) into the soil; The driving member (5) is connected to the two sliders (31) and is used to drive the two sliders (31) to move in a direction away from the sleeve (2), so that the two cutting wires (32) are tensioned to cut the soil sample.

2. The soil compaction detection and soil sampling device according to claim 1, characterized in that: The top end of the sleeve (2) is detachably connected to a sealing cover (23), the top end of the sealing cover (23) is provided with a first internally threaded tube (231), and the press-in member (4) comprises: The bottom plate (41) is provided with a circular hole, and the two sides of the circular hole are connected with strip holes. The two sides of the circular hole on the bottom plate (41) are provided with columns (411), the sleeve (2) is slidably connected to the circular hole, and the mounting shell (21) is slidably connected to the strip hole. A carrier plate (42) is horizontally arranged on the top of the column (411); A screw rod (43), the bottom end of which is threadedly connected to the first internally threaded tube (231); The driving motor (44) is arranged on the carrier plate (42), and the rotating shaft of the driving motor (44) passes through the carrier plate (42) and is connected to the screw rod (43).

3. The soil compaction detection and soil sampling device according to claim 2, characterized in that: The driving member (5) comprises: A pressure ring (51) is sleeved on the sleeve (2); Two pressure rods (52) are longitudinally arranged at the bottom end of the pressure ring (51), and the two pressure rods (52) are respectively inserted into the two installation shells (21); Two hinged rods (53) are respectively arranged in the two mounting shells (21), one end of the hinged rod (53) is hinged to the pressure rod (52), and the other end of the hinged rod (53) is hinged to the slider (31); The pressing sleeve (54) has ear plates (541) on both sides thereof. The two upright posts (411) respectively pass through the two ear plates (541). The pressing sleeve (54) is provided with a second internally threaded tube (542), which is threadedly connected to the screw rod (43).

4. The soil compaction detection and soil sampling device according to claim 1, characterized in that: An embedding groove (24) is provided above the annular groove (22) on the inner wall of the sleeve (2). The embedding groove (24) penetrates toward the top of the sleeve (2). The ring cutter (1) is embedded in the embedding groove (24). The inner wall of the ring cutter (1) is flush with the sleeve (2).

5. The soil compaction detection and soil sampling device according to claim 3, characterized in that: The upper part of the inner cavity of the first internally threaded tube (231) is a light hole portion. When the top end of the ring cutter (1) in the sleeve (2) is flush with the bottom surface of the base plate (41), the bottom end of the screw rod (43) is screwed into the light hole portion of the first internally threaded tube (231).

6. The soil compaction detection and soil sampling device according to claim 2, characterized in that: The sealing cover (23) is threadedly connected to the top of the sleeve (2); a connecting seat (232) is provided at the top of the sealing cover (23); and the first internally threaded tube (231) is threadedly connected to the connecting seat (232).

7. The soil compaction detection and soil sampling device according to claim 2, characterized in that: A connecting ring (11) is provided above the top of the ring knife (1), and a connecting block (233) embedded in the connecting ring (11) is provided at the bottom of the sealing cover (23), the bottom of the connecting block (233) is flush with the connecting ring (11), and a through hole (234) penetrating the sealing cover (23) is provided on the connecting block (233).

8. The soil compaction detection and soil sampling device according to claim 1, characterized in that: The bottoms of the two mounting shells (21) and the sleeve (2) are both provided with cutting edges.

9. The soil compaction detection and soil sampling device according to claim 2, characterized in that: Handles are provided on opposite sides of the carrier plate (42), and a plurality of fixing cones (412) are provided at the bottom end of the bottom plate (41).

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