CN209802720U - A Soil Sampling Device Applicable to Loose Stratum - Google Patents

Abstract

The utility model relates to the technical field of soil sampling devices, and discloses a soil sampling device suitable for unconsolidated strata, which comprises a shell, wherein a clapboard is fixedly arranged in the shell, a jacking column is arranged on the top surface of the clapboard, a sampling rod is sleeved on the internal thread of the clapboard, a sampling cylinder is arranged at the bottom end of the sampling rod, a sampling port is arranged at the bottom end of the sampling cylinder, a ratchet is arranged on the outer surface of the sampling cylinder, and an elastic sheet is arranged on the inner wall of the shell; the worm gear is driven to rotate clockwise through the shell, so that the worm gear can turn over the soil below the device to the top of the device, the non-target soil above the target stratum is not required to be repeatedly sampled for many times, the device can directly reach the depth of the target stratum, the soil of the target stratum is directly sampled, the operation is simple, the sampling speed is high, the labor intensity is further reduced, and the practicability of the soil sampling device applicable to the unconsolidated stratum is improved.

Description

A Soil Sampling Device Applicable to Loose Stratum

technical field

The utility model relates to the technical field of soil sampling devices, in particular to a soil sampling device suitable for loose formations.

Background technique

Obtaining in-situ soil property test data by collecting soil samples is a key link in soil research. Obtaining a large number of surface soil samples in field surveys is labor-intensive, and obtaining deep soil samples is a time-consuming and laborious task. Traditional The method is to excavate the soil profile, and then collect soil samples on the soil profile according to different soil depths. The excavation of the soil profile is not only labor-intensive, but also damages the soil structure. In order to reduce labor intensity, people use soil sampling devices. Obtain deep soil samples.

Existing soil sampling devices are not suitable for loose formations. When sampling vertically in loose formations, due to the weight of the sample and the shaking of the core lifting process, the center will be lost, making the sampling rate low and difficult to achieve the quality of drilling sampling. Requirements, important stratum information is lost, and the soil samples in the target stratum need to be sampled repeatedly at the same sampling point when used, and the labor intensity is still very high, so it is urgent to design a soil sampling device suitable for loose strata .

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a soil sampling device suitable for loose formations, to solve the problem that the existing soil sampling devices are not suitable for loose formations. When vertical sampling is performed in loose formations, due to The self-weight of the sample and the swaying of the core lifting process cause the phenomenon of loss of core, which makes the sampling rate low, it is difficult to meet the quality requirements of drilling sampling, and important formation information is lost. In addition, it is necessary to take repeated samples at the same sampling point to get the target formation. In soil samples, labor intensity is still a big problem.

The utility model provides the following technical solutions:

A soil sampling device suitable for loose formations, comprising a casing, the inside of the casing is fixed with a partition, the top surface of the partition is provided with a jacking column, and the internal thread of the partition is sleeved with a sampling rod , the bottom end of the sampling rod is provided with a sampling cylinder, the bottom end of the sampling cylinder is provided with a sampling port, the outer surface of the sampling cylinder is provided with ratchet teeth, the inner wall of the shell is provided with shrapnel, and the sampling rod The outer fixed sleeve of the mounting plate is provided with a mounting plate, the top surface of the mounting plate is provided with a lifting plate, and the lifting plate is slidingly socketed with the sampling rod. The inner wall of the inner wall is connected with a clamping column through a clamping spring transmission, the outer surface of the sampling rod is provided with a clamping hole, the top surface of the lifting plate is provided with a driving ring gear, and the top surface of the inner cavity of the housing is provided with a The movable ring gear; the outer surface of the shell is provided with worm teeth, the bottom end of the shell is threadedly connected with a transfer pipe, the inner wall of the transfer pipe is provided with a connecting block, and the inside of the connecting block is provided with a fixed ring, so One end of the rotating rod is connected to the outside of the fixed ring, the other end of the rotating rod is connected to a sealing plate, and a torsion spring is connected to the outside of the fixed ring, and the two ends of the torsion spring are respectively connected with the connecting block and the The two end surfaces of the rotating rods approaching each other are connected.

Preferably, a limit post is provided on the top surface of the installation plate, and a limit hole penetrating through the lift plate is opened inside the lifting plate, and the limit hole is slidably socketed with the limit post.

Preferably, the clamping column is located directly below the clamping hole, the end surface of the clamping column close to the sampling rod is an inclined surface, and the end of the clamping column can be inserted into the clamping hole.

Preferably, an adjusting screw is threadedly connected to the top surface of the housing, and the bottom end of the adjusting screw extends to the inside of the housing and is connected with a rubber pressure cap.

Preferably, the number of the jacking columns is two, and the distance between the two jacking columns is greater than the outer diameter of the mounting plate.

Preferably, the end of the elastic piece can mesh with the teeth on the ratchet, and the driving ring gear and the driven ring gear can mesh with each other.

The beneficial effects of the utility model are reflected in:

Through the elastic force of the shrapnel itself, the end of the shrapnel is engaged with the ratchet, and the sampling cylinder is limited, so that the sampling cylinder and the shell can rotate clockwise synchronously, and the tapered tip is formed under the action of the torsion spring torsion through three sealing plates. It makes it easier for the device to break into the soil, and at the same time, it can block the soil sample taken by the sampling cylinder inside the sampling cylinder, so that the core will not be lost due to the weight of the sample and the shaking during the lifting process, so that the sampling rate is high and it is easy to achieve Drilling and sampling quality requirements, retaining complete stratum information, through the shell with worm gear clockwise rotation, so that the worm gear can turn the soil below the device to the top of the device, no need to repeat sampling to clean up the target stratum The non-target soil enables the device to directly reach the depth of the target stratum and directly sample the soil of the target stratum. The operation is simple, the sampling speed is fast, and the labor intensity is further reduced, which improves the practicability of the soil sampling device suitable for loose strata.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific implementation or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic diagram of the internal structure of Figure 1;

Fig. 3 is the structural representation after the utility model gets the soil sample;

Fig. 4 is the enlarged schematic view of the structure at place A in Fig. 2;

Fig. 5 is the sectional view of B-B place in Fig. 2;

Fig. 6 is the enlarged schematic view of the structure at C in Fig. 2;

FIG. 7 is a schematic diagram of the top view of the internal structure of the transfer pipe in FIG. 2 .

In the attached drawings: 1. shell; 2. clapboard; 3. jacking column; 4. sampling rod; 5. sampling cylinder; 6. sampling port; 7. ratchet; 8. shrapnel; 9. installation plate; Limiting post; 11. Lifting plate; 12; Limiting hole; 13. Clamping groove; 14. Clamping spring; 15. Clamping column; 16. Clamping hole; 17. Drive ring gear; 18. Driven tooth 19, adjusting screw; 20, rubber pressure cap; 21, worm gear; 22, transfer tube; 23, connecting block; 24, fixed ring; 25, rotating rod; 26, sealing plate; 27, torsion spring.

Detailed ways

The embodiment of the technical solution of the utility model will be described in detail below in conjunction with accompanying drawings 1-7. The following examples are only used to illustrate the technical solutions of the present utility model more clearly, so they are only examples, and should not be used to limit the protection scope of the present utility model.

It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

A soil sampling device suitable for loose formations, comprising a casing 1, a partition 2 is fixedly installed inside the casing 1, a jacking column 3 is provided on the top surface of the partition 2, and a sampling rod is sleeved on the internal thread of the partition 2 4. The bottom end of the sampling rod 4 is provided with a sampling cylinder 5, the top of the sampling rod 4 extends to the outside of the casing 1, the sampling rod 4 is movably socketed with the casing 1, and the bottom end of the sampling cylinder 5 is provided with a sampling port 6, and the sampling cylinder The outer surface of 5 is provided with a ratchet 7, the inner wall of the housing 1 is provided with a shrapnel 8, the ratchet 7 can engage with the end of the shrapnel 8, and the outside of the sampling rod 4 is fixedly sleeved with a mounting plate 9, and the top surface of the mounting plate 9 A lifting plate 11 is provided, and the lifting plate 11 is slidingly socketed with the sampling rod 4. The inner surface of the lifting plate 11 is provided with a clamping groove 13, and the inner wall of the clamping groove 13 is connected with a clamping column 15 through a clamping spring 14. Sampling The outer surface of the rod 4 is provided with a clamping hole 16, the top surface of the lifting plate 11 is provided with a driving ring gear 17, and the top surface of the inner cavity of the housing 1 is provided with a driven ring gear 18, and the driving ring gear 17 can be connected with the driven ring gear. 18 are meshed with each other; the outer surface of the shell 1 is provided with a worm gear 21, the bottom end of the shell 1 is threadedly connected with an adapter pipe 22, the inner wall of the adapter pipe 22 is provided with a connecting block 23, and the inside of the connecting block 23 is provided with a fixed ring 24, fixed The outer movable sleeve of ring 24 is connected with one end of rotating rod 25, and the other end of rotating rod 25 is connected with sealing plate 26, and the quantity of sealing plate 26 is three, and three sealing plates 26 form a cone under the torsion force of torsion spring 27. A torsion spring 27 is sleeved on the outside of the fixed ring 24, and the two ends of the torsion spring 27 are respectively connected with the two end faces of the connecting block 23 and the rotating rod 25 that are close to each other.

The top surface of the mounting plate 9 is provided with a limit post 10, and the inside of the lift plate 11 is provided with a limit hole 12 that runs through the lift plate 11, and the limit hole 12 is slidably socketed with the limit post 10 to limit the lift plate 11. The end of the clamping column 15 can face the clamping hole 16 .

The clamping column 15 is located directly below the clamping hole 16 , the end surface of the clamping column 15 close to the sampling rod 4 is an inclined surface, and the end of the clamping column 15 can be plugged into the clamping hole 16 .

An adjusting screw 19 is threadedly connected to the top surface of the housing 1 , and the bottom end of the adjusting screw 19 extends to the inside of the housing 1 and is connected with a rubber pressing cap 20 for restoring the lifting plate 11 to its original state.

There are two jacking columns 3, and the distance between the two jacking columns 3 is greater than the outer diameter of the mounting plate 9, so that the top of the jacking columns 3 can reach the bottom surface of the lifting plate 11.

The end of the shrapnel 8 can mesh with the teeth on the ratchet 7 to play the role of limit transmission, and the driving ring gear 17 and the driven ring gear 18 can mesh with each other to play the role of limit transmission.

When working, first connect the sampling rod 4 to the external rotating device, and then the rotating device rotates clockwise with the sampling rod 4, at this time, the shrapnel 8 meshes with the ratchet 7 under the action of its own elastic force, so that the shell 1 and the sampling rod 4 Rotate clockwise synchronously, then the housing 1 moves clockwise with the worm gear 21, and then align the tapered tip formed by the three sealing plates 26 under the torsion of the torsion spring 27 to the sampling site and keep the sampling rod 4 vertical state, and then apply a downward pressure to the sampling rod 4, so that the tapered tip breaks into the soil, and then the clockwise rotating worm tooth 21 transfers the soil below the tapered tip to the top of the shell 1, so that the shell 1 gradually moves toward the formation Move deep until the casing 1 reaches the formation at the target depth, and then make the rotating device drive the sampling rod 4 to rotate counterclockwise. Sliding, while using the friction between the casing 1 and the soil, the casing 1 is kept still, and then the sampling rod 4 moves downward under the action of the threaded connection between it and the partition 2, pushing the sampling cylinder 5 and the sampling port 6 moves downward, and the sampling port 6 stretches the three sealing plates 26 and extends downward from the middle of the three sealing plates 26, so that the soil in the target formation is squeezed into the inside of the sampling cylinder 5, and at the same time, the sampling rod 4 The lifting plate 11 is moved downward by the mounting plate 9, so that the bottom surface of the lifting plate 11 and the top of the jacking column 3 are in contact with each other, and then the jacking column 3 is used to limit the lifting plate 11, providing upward force for the lifting plate 11, so that The lifting plate 11 moves upward relative to the sampling rod 4, and then the end of the clamping column 15 faces the clamping hole 16, and the clamping column 15 is inserted into the clamping hole 16 under the elastic force of the clamping spring 14, so that the lifting plate 11 and The sampling rod 4 rotates synchronously. At this time, the end of the shrapnel 8 slides on the surface of the sampling cylinder 5, and then the rotating device drives the sampling rod 4 to rotate clockwise, and then the sampling rod 4 is screwed between it and the partition plate 2. Moving up and down, the sampling cylinder 5 and the sampling port 6 with the soil sample are pulled up, so that the three sealing plates 26 are close to each other under the torsion force of the torsion spring 27 and form a tapered tip, and simultaneously the sampling cylinder 5 and the sampling port The mouth 6 is isolated from the external space, and the soil inside the sampling cylinder 5 and the sampling port 6 will not fall out, and then the sampling rod 4 moves upward with the lifting plate 11, so that the driving ring gear 17 and the driven ring gear 18 are meshed with each other, and then the The rotating device drives the sampling rod 4 to rotate counterclockwise. The sampling rod 4 rotates the casing 1 counterclockwise through the meshing effect of the driving ring gear 17 and the driven ring gear 18. The casing 1 rotates counterclockwise with the worm gear 21, and the top of the casing 1 The soil is transmitted to the bottom of the casing 1, providing an upward thrust for the casing 1, and at the same time applying an upward lifting force for the sampling rod 4, lifting the casing 1 from the formation, and then disassembling the adapter pipe 22 from the casing 1, Take out the soil sample inside the sampling cylinder 5 and the conical tip to complete the sampling of the soil sample, then connect the adapter tube 22 to the housing 1, and rotate the adjusting screw 19 clockwise to push the adjusting screw 19 under the action of the screw socket The rubber pressing cap 20 moves down, and the rubber pressing cap 2 The bottom end of O is against the top surface of the lifting plate 11 to provide a downward thrust for the lifting plate 11, and the lifting plate 11 provides a downward thrust for the clamping column 15, and the clamping column 15 moves downward with the lifting plate 11, Under the action of the inclined surface at the end of the clamping column 15, the inner wall of the clamping hole 16 provides a thrust for the clamping column 15, and the clamping column 15 slides to the inside of the clamping groove 13 under the action of the thrust, so that the clamping column 15 Separated from the clamping hole 16, the lifting plate 11 moves downward and makes its bottom surface contact with the top surface of the mounting plate 9, and then rotates the sampling rod 4 clockwise, and the sampling rod 4 moves upward with the sampling cylinder 5 under the action of the threaded socket , so that the ratchet 7 is re-engaged with the end of the shrapnel 8, and finally the device is restored to its original state, ready for the next soil sampling.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention The scope of the technical solution shall be included in the scope of the claims and description of the present utility model.

Claims (6)

1. A soil sampling device suitable for unconsolidated formations, comprising a housing (1), characterized in that: the inner part of the shell (1) is fixedly provided with a partition plate (2), the top surface of the partition plate (2) is provided with a jacking column (3), the inner thread of the partition plate (2) is sleeved with a sampling rod (4), the bottom end of the sampling rod (4) is provided with a sampling barrel (5), the bottom end of the sampling barrel (5) is provided with a sampling port (6), the outer surface of the sampling barrel (5) is provided with a ratchet (7), the inner wall of the shell (1) is provided with an elastic sheet (8), the outer part of the sampling rod (4) is fixedly sleeved with a mounting plate (9), the top surface of the mounting plate (9) is provided with a lifting plate (11), the lifting plate (11) is slidably sleeved with the sampling rod (4), the inner surface of the lifting plate (11) is provided with a clamping groove (13), the inner wall of the clamping groove (13) is connected with a clamping column (15), the outer surface of the sampling rod (4) is provided with a clamping hole (16), the top surface of the lifting plate (11) is provided with a driving gear ring (17), and the top surface of the inner cavity of the shell (1) is provided with a driven gear ring (18); the surface of shell (1) is equipped with worm gear (21), the bottom threaded connection of shell (1) has switching pipe (22), the inner wall of switching pipe (22) is equipped with connecting block (23), the inside of connecting block (23) is equipped with retainer plate (24), the one end of rotary rod (25) has been cup jointed in the outside activity of retainer plate (24), the other end of rotary rod (25) is connected with closing plate (26), torque spring (27) have been cup jointed to the outside of retainer plate (24), two end connections that the both ends of torque spring (27) are close to each other with connecting block (23) and rotary rod (25) respectively.

2. A soil sampling device for use in unconsolidated formations according to claim 1, wherein: the top surface of mounting panel (9) is equipped with spacing post (10), spacing hole (12) of running through lifter plate (11) are seted up to the inside of lifter plate (11), spacing hole (12) and spacing post (10) slip cup joint.

3. A soil sampling device for use in unconsolidated formations according to claim 1, wherein: joint post (15) are located joint hole (16) under, the terminal surface that joint post (15) are close thief rod (4) is the inclined plane, the tip of joint post (15) can peg graft each other with joint hole (16).

4. A soil sampling device for use in unconsolidated formations according to claim 1, wherein: the top surface threaded connection of shell (1) has adjusting screw (19), adjusting screw (19)'s bottom extends to the inside of shell (1) and is connected with rubber pressure cap (20).

5. A soil sampling device for use in unconsolidated formations according to claim 1, wherein: the number of the jacking columns (3) is two, and the distance value between the two jacking columns (3) is larger than the outer diameter value of the mounting plate (9).

6. A soil sampling device for use in unconsolidated formations according to claim 1, wherein: the end part of the elastic sheet (8) can be meshed with teeth on the ratchet (7), and the driving gear ring (17) and the driven gear ring (18) can be meshed with each other.