Sampling device for soil

Abstract

The utility model belongs to the technical field of soil sampling, and particularly provides a sampling device for soil, which comprises an outer drill which is of a cylindrical structure, and the lower end of the outer drill is provided with first teeth for rotationally cutting the soil in a rotating process; the inner drill is arranged in the outer drill and comprises two arc-shaped plates with semicircular sections, the two arc-shaped plates can form a cylindrical structure after being spliced, and the inner drill is detachably mounted in the outer drill; wherein the inner drill body is synchronously and rotatably connected to the interior of the outer drill body, and the outer drill body and the inner drill body rotate at the same time and go deep into soil; according to the utility model, the design structure is reasonable, the two arc-shaped plates which can be assembled are adopted as the inner drill, the outer drill is of a cylindrical structure, the inner drill is arranged in the outer drill and synchronously rotates with the outer drill during working, so that soil can enter the inner drill, the inner drill is disassembled from the inner part of the outer drill during soil sampling, and the two arc-shaped plates can also be disassembled; the soil can be quickly taken out, so that the labor intensity of workers is reduced, and the sampling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil sampling, and in particular relates to a soil sampling device. Background Art

[0002] Most current soil sampling devices are one-piece stainless steel structures with a semicircular drill head. This semicircular drill bit is not suitable for areas with loose soil. When the sampling device is pulled out, the loose soil will cause the soil to break away from the drill bit, affecting sampling. Furthermore, this structure requires manual insertion into the soil, which is time-consuming and labor-intensive. Furthermore, existing techniques also use cylindrical drill bits for soil sampling. However, this structure leaves the soil trapped in the center hole of the cylinder after sampling, making it difficult to remove, which also affects sampling efficiency. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a soil sampling device, which adopts two assembleable arc-shaped plates as an inner drill, and the outer drill is a cylindrical structure. The inner drill is placed inside the outer drill and rotates synchronously with the outer drill during operation, so that soil can enter the inner drill. When taking soil, the inner drill is disassembled from the inside of the outer drill, and the two arc-shaped plates can also be disassembled, so that the soil can be quickly taken out, saving the labor intensity of the staff and improving the sampling efficiency.

[0004] The technical solution adopted by the utility model is: a soil sampling device, comprising:

[0005] The outer drill has a cylindrical structure and a first tooth at the lower end for rotary cutting of the soil during rotation;

[0006] The inner drill is arranged inside the outer drill and includes two arc-shaped plates with semicircular cross-sections. The two arc-shaped plates can form a cylindrical structure after being spliced. The inner drill can be detachably installed inside the outer drill;

[0007] Among them, the inner drill rotates synchronously and is connected to the inside of the outer drill. When the outer drill and the inner drill rotate simultaneously and penetrate into the soil, the soil can enter the inner drill. After the inner drill is removed from the outer drill and the two arc plates are separated, the soil can be quickly taken out.

[0008] Also includes:

[0009] The connecting seat is detachably mounted on the top of the outer drill, and the upper end thereof can extend outward from the center hole of the outer drill. The arc-shaped plate of the inner drill is detachably connected to the connecting seat.

[0010] A step portion is provided on the lower outer wall of the connecting seat, and two symmetrically arranged limiting protrusions are provided on the step portion. A limiting groove matching the limiting protrusions is opened at the end of the inner drilled arc plate. The end of the arc plate is placed at the position of the step portion, and the limiting protrusion is placed in the limiting groove. The upper end of the arc plate is connected to the connecting seat by screws.

[0011] The connecting seat has an upwardly extending positioning portion at the center upper end, and the cross-sectional shape of the positioning portion is a regular polygon. The cross-sectional shape of the upper center hole of the outer drill matches the cross-sectional shape of the positioning portion. The positioning portion is placed at the center hole of the outer drill, which can realize the synchronous rotation cooperation between the connecting seat and the outer drill.

[0012] The top of the positioning part is provided with a threaded connection part, and a nut connected with the threaded connection part is provided on the top of the outer drill. Tightening the nut can fix the connecting seat on the upper end of the outer drill.

[0013] The lower ends of the two arc-shaped plates of the inner drill are fastened by a clamp.

[0014] The lower end of the arc plate is provided with second teeth.

[0015] It also includes a top plate, a bottom plate, a lifting plate and a guide rod. At least two vertically arranged guide rods are installed between the top plate and the bottom plate. The lifting plate and the guide rods are slidably matched. A rotatable screw rod is installed between the top plate and the bottom plate. The screw rod is threadedly matched with the lifting plate. A handwheel for driving the screw rod to rotate is installed at the upper end of the screw rod.

[0016] The top of the outer drill is connected with a connecting shaft, which passes through the lifting plate and the upper end of which is connected to a driving member installed on the surface of the lifting plate, and the driving member can drive the connecting shaft to rotate.

[0017] The beneficial effects of the utility model are:

[0018] The utility model has a reasonable design structure. It adopts two assembleable arc-shaped plates as the inner drill, and the outer drill is a cylindrical structure. The inner drill is placed inside the outer drill and rotates synchronously with the outer drill during operation, so that soil can enter the inner drill. When taking soil, the inner drill is disassembled from the inside of the outer drill, and the two arc-shaped plates can also be disassembled, so the soil can be taken out quickly, which saves the labor intensity of the staff and improves the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the utility model;

[0020] Figure 2 It is a side view of the utility model;

[0021] Figure 3 This is a cross-sectional view of the connection between the inner drill and the outer drill of the utility model;

[0022] Figure 4 This is an exploded view of the connection between the connecting seat and the inner drill of the utility model;

[0023] Figure 5 This is a cross-sectional view of the connection structure of two curved plates of the utility model;

[0024] Figure 6 The three-dimensional connecting seat of the utility model Figure 1 ;

[0025] Figure 7 The three-dimensional connecting seat of the utility model Figure 2 .

[0026] Among them: 1. Base plate; 2. Guide rod; 3. Connecting shaft; 4. Lifting plate; 5. Driving part; 6. Top plate; 7. Handwheel; 8. Screw; 9. Nut; 10. Connecting seat; 1001. Threaded connection part; 1002. Positioning part; 1003. Step part; 1004. Limiting protrusion; 11. External drill; 1101. First tooth; 12. Internal drill; 1201. Second tooth; 1202. Arc plate; 1203. Limiting groove; 13. Hoop. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] As shown in the figure, a soil sampling device includes:

[0029] The outer drill 11 has a cylindrical structure and has a first tooth 1101 at its lower end for rotary cutting of the soil during rotation. When the outer drill 11 rotates and exerts a downward force, the first tooth 1101 can cut the ground;

[0030] The inner drill 12 is arranged inside the outer drill 11 and includes two arc-shaped plates 1202 with a semicircular cross-section. The two arc-shaped plates 1202 can form a cylindrical structure after being spliced. The inner drill 12 is detachably installed inside the outer drill 11;

[0031] Among them, the inner drill 12 rotates synchronously and is connected to the inside of the outer drill 11. When the outer drill 11 and the inner drill 12 rotate simultaneously and penetrate into the soil, the soil can enter the inside of the inner drill 12, and after the inner drill 12 is disassembled from the outer drill 11 and the two arc-shaped plates 1202 are separated, the soil can be quickly taken out.

[0032] It also includes a connecting seat 10, which is detachably mounted on the top position of the outer drill 11, and the upper end can extend outward from the center hole of the outer drill 11. The arc plate 1202 of the inner drill 12 is detachably connected to the connecting seat 10, that is, the connecting seat 10 serves as a bridge connecting the inner drill 12 and the outer drill 11, and is used to fix the inner drill 12 to the inside of the outer drill 11, and realize the synchronous rotation connection and detachability of the inner drill 12 and the outer drill 11.

[0033] A step portion 1003 is provided on the lower outer wall of the connecting seat 10, and two symmetrically arranged limiting protrusions 1004 are provided on the step portion 1003. A limiting groove 1203 matching the limiting protrusion 1004 is opened at the end of the arc-shaped plate 1202 of the inner drill 12. The end of the arc-shaped plate 1202 is placed at the position of the step portion 1003, and the limiting protrusion 1004 is placed in the limiting groove 1203. The upper end of the arc-shaped plate 1202 is connected to the connecting seat 10 by screws; The setting is mainly used to facilitate the rapid assembly of the two curved plates 1202 and the connecting seat 10. By utilizing the cooperation between the limiting protrusion 1004 and the limiting groove 1203, the inner drill 12 composed of the connecting seat 10 and the two curved plates 1202 has the effect of synchronous rotation connection, thereby improving the assembly efficiency; a through hole is radially opened at the upper end of the curved plate 1202, and a threaded hole is opened at the outer wall position of the connecting seat 10, and the curved plate 1202 and the connecting seat 10 can be fixed by inserting screws.

[0034] The connecting seat 10 has an upwardly extending positioning portion 1002 at the center upper end thereof, and the cross-sectional shape of the positioning portion 1002 is a regular polygon. The cross-sectional shape of the upper center hole of the outer drill 11 matches the cross-sectional shape of the positioning portion 1002. The positioning portion 1002 is placed at the center hole of the outer drill 11, which can realize the synchronous rotation cooperation of the connecting seat 10 and the outer drill 11. In this example, the cross-sectional shapes of the positioning portion 1002 and the center hole of the outer drill 11 are both regular hexagons, and other shapes can also be used, which are mainly used to prevent the connecting seat 10 from rotating relative to the outer drill 11.

[0035] The top of the positioning portion 1002 has a threaded connection portion 1001, and a nut 9 connected to the threaded connection portion 1001 is provided on the top of the outer drill 11. Tightening the nut 9 can fix the connecting seat 10 on the upper end of the outer drill 11, which can be used to install the connecting seat 10 on the outer drill 11 and fix the inner drill 12 to the inside of the outer drill 11 at the same time.

[0036] The lower ends of the two arc-shaped plates 1202 of the inner drill 12 are fastened by the hoop 13 to avoid the problem of the lower ends of the two arc-shaped plates 1202 opening during the working process. In this example, Figure 5 As shown, the edge connections of the two arc-shaped plates 1202 are both provided with stop structures, which can achieve quick splicing.

[0037] The lower end of the arc-shaped plate 1202 is provided with a second tooth 1201 , which is arranged to facilitate rotary cutting of the soil so that the soil enters the center position of the inner drill 12 .

[0038] It also includes a top plate 6, a bottom plate 1, a lifting plate 4 and a guide rod 2. At least two vertically arranged guide rods 2 are installed between the top plate 6 and the bottom plate 1. The lifting plate 4 slides with the guide rod 2 to realize the function of lifting the lifting plate 4 in the vertical direction. A rotatable screw rod 8 is installed between the top plate 6 and the bottom plate 1. The screw rod 8 is threadedly engaged with the lifting plate 4. A handwheel 7 for driving the screw rod 8 to rotate is installed at the upper end of the screw rod 8. By rotating the handwheel 7, the lifting plate 4 can be driven to rise and fall.

[0039] The top of the outer drill 11 is connected to a connecting shaft 3, which is connected to the outer drill 11 by a threaded connection. The connecting shaft 3 passes through the lifting plate 4 and the upper end is connected to a driving member 5 installed on the surface of the lifting plate 4. The driving member 5 can drive the connecting shaft 3 to rotate. The driving member 5 can adopt a power equipment such as a diesel engine, which is mainly used to drive the connecting shaft 3 to rotate.

[0040] When this soil sampling device is in use, the driving member 5 is started, so that the driving member 5 drives the connecting shaft 3 to rotate, and then the outer drill 11, the connecting seat 10 and the inner drill 12 rotate together. During the rotation process, the screw rod 8 is rotated by turning the handwheel 7, and the screw rod 8 drives the lifting plate 4 to move downward, so that the outer drill 11 contacts the ground and uses the first teeth 1101 to cut the ground. At the same time, the second teeth 1201 of the inner drill 12 can also cut the soil, so that the soil enters the internal position of the inner drill 12. When the work is completed, the outer drill 11 can be removed from the connecting shaft 3, and the connecting seat 10 and the inner drill 12 can be removed from the inside of the outer drill 11 as a whole by loosening the nut 9. After removing the screws connecting the arc plate 1202 and the connecting seat 10, the two arc plates 1202 can be separated to realize the sampling of the internal soil.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A soil sampling device, characterized in that: include: The outer drill has a cylindrical structure and a first tooth at the lower end for rotary cutting of the soil during rotation; The inner drill is arranged inside the outer drill and includes two arc-shaped plates with a semicircular cross section. The two arc-shaped plates can form a cylindrical structure after being spliced. The inner drill can be detachably installed inside the outer drill; Among them, the inner drill rotates synchronously and is connected to the inside of the outer drill. When the outer drill and the inner drill rotate simultaneously and penetrate into the soil, the soil can enter the inner drill. After the inner drill is removed from the outer drill and the two arc plates are separated, the soil can be quickly taken out.

2. A soil sampling device according to claim 1, characterized in that: Also includes: The connecting seat is detachably mounted on the top of the outer drill, and the upper end thereof can extend outward from the center hole of the outer drill. The arc-shaped plate of the inner drill is detachably connected to the connecting seat.

3. A soil sampling device according to claim 2, characterized in that: A step portion is provided on the lower outer wall of the connecting seat, and two symmetrically arranged limit protrusions are provided on the step portion. A limit groove matching the limit protrusion is opened at the end of the inner drilled arc plate. The end of the arc plate is placed at the position of the step portion, and the limit protrusion is placed in the limit groove. The upper end of the arc plate is connected to the connecting seat by screws.

4. A soil sampling device according to claim 2, characterized in that: The upper center end of the connecting seat has a positioning portion extending upward, the cross-sectional shape of the positioning portion is a regular polygon, the cross-sectional shape of the upper center hole of the outer drill matches the cross-sectional shape of the positioning portion, and the positioning portion is placed at the center hole of the outer drill, which can realize the synchronous rotation cooperation between the connecting seat and the outer drill.

5. A soil sampling device according to claim 4, characterized in that: The top of the positioning part is provided with a threaded connection part, and a nut connected with the threaded connection part is provided on the top of the outer drill. Tightening the nut can fix the connecting seat on the upper end of the outer drill.

6. A soil sampling device according to claim 1, characterized in that: The lower ends of the two inner drilled arc plates are fastened by clamps.

7. A soil sampling device according to claim 1, characterized in that: The lower end of the arc plate is provided with a second tooth.

8. A soil sampling device according to claim 1, characterized in that: It also includes a top plate, a bottom plate, a lifting plate and a guide rod. At least two vertically arranged guide rods are installed between the top plate and the bottom plate. The lifting plate and the guide rods are slidably matched. A rotatable screw rod is installed between the top plate and the bottom plate. The screw rod is threadedly matched with the lifting plate. A handwheel for driving the screw rod to rotate is installed at the upper end of the screw rod.

9. A soil sampling device according to claim 8, characterized in that: The top of the outer drill is connected with a connecting shaft, which passes through the lifting plate and the upper end of which is connected to a driving member installed on the surface of the lifting plate. The driving member can drive the connecting shaft to rotate.

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