Soil stratified sampling device

Abstract

The utility model belongs to the technical field of soil sampling, and particularly relates to a soil stratified sampling device which comprises a tunneling cylinder, an operating rod is arranged at the top of the tunneling cylinder, and the bottom of the tunneling cylinder is conical and is provided with a spiral piece; the multiple sample storage structures are arranged in the tunneling barrel at intervals in the vertical direction; the sealing structure is arranged on the peripheral side wall of the tunneling barrel and is used for sealing the inlet of the sample storage structure; the plurality of digging shovel plates are respectively arranged at the corresponding sample storage structures; the operation structure is arranged in the tunneling barrel and used for adjusting the position of each digging shovel plate, and the operation structure is used for solving the problem that soil samples collected by some existing soil sampling devices come from mixed soil of different stratums, so that the collected soil samples are not accurate enough.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of soil sampling, specifically relates to a soil layered sampling device. BACKGROUND

[0002] The soil sampling device is a tool for obtaining soil samples, and common tools include a soil drill, a spade and a shovel.

[0003] However, the soil sampling device is used to dig into the ground layer, and the soil is collected in the soil cavity, so the obtained soil sample is a mixture of soil from different layers, which makes the collected soil sample inaccurate. SUMMARY

[0004] Based on the above-mentioned problems in the background art, the utility model provides a soil layered sampling device, which is used to solve the problem that the soil sample obtained by some existing soil sampling devices is a mixture of soil from different layers, which leads to inaccurate soil sample.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A soil layered sampling device comprises:

[0007] The digging cylinder is provided with an operating rod at the top and is provided with spiral fins at the bottom.

[0008] The sample storage structure is provided with a plurality of sample storage structures, which are arranged in the digging cylinder in a vertical direction.

[0009] The closing structure is arranged on the side wall of the digging cylinder and is used to close the inlet of the sample storage structure.

[0010] The digging shovel plate is provided with a plurality of digging shovel plates, which are arranged at the corresponding sample storage structures.

[0011] The operating structure is arranged in the digging cylinder and is used to adjust the position of each digging shovel plate.

[0012] On the basis of the above technical scheme, the utility model has the following improvements:

[0013] Further, the sample storage structure comprises a sample storage cavity, which is arranged in the boring cylinder, and a feeding port and a discharging port are arranged on the peripheral side wall of the boring cylinder, the feeding port and the discharging port are in communication with the sample storage cavity, the feeding port and the discharging port are oppositely arranged, and a plugging plug is clamped in the discharging port.

[0014] Further, the closed structure comprises a clamping groove, which is vertically arranged on the peripheral side wall of the boring cylinder, and a closing plate is clamped in the clamping groove, and the closing plate is located at the port portion of the feeding port.

[0015] Further, the feeding port is arranged in an arc shape along the peripheral side direction of the boring cylinder, and the earth digging shovel plates are located in the feeding port.

[0016] Further, the operation structure comprises a rotating shaft, which is vertically arranged in the boring cylinder, a fixing sleeve is arranged at the top of the boring cylinder, the top of the rotating shaft penetrates out of the fixing sleeve and is provided with a hand wheel, and a locking screw is screwed into the fixing sleeve.

[0017] A plurality of gears are arranged on the rotating shaft, each gear is located in a corresponding sample storage cavity, and each earth digging shovel plate is provided with an engaging tooth, and the engaging tooth is engaged with the corresponding gear.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. The boring cylinder, the operating rod and the spiral blade are arranged, the boring cylinder is pressed down and rotated by holding the operating rod, the boring cylinder is driven into the stratum under the rotating action of the spiral blade, and a sampling base hole is drilled in the stratum.

[0020] 2. The sample storage structure, the earth digging shovel plates and the operation structure are combined, when the sampling base hole is drilled, the operation structure drives each earth digging shovel plate to extend out of the boring cylinder and into the hole wall soil of the sampling base hole, then the boring cylinder is rotated to make each earth digging shovel plate scrape the soil on the hole wall of the corresponding layer of the sampling base hole, and the soil on the hole wall of the corresponding layer of the sampling base hole is scraped into the corresponding sample storage cavity by each earth digging shovel plate, so that the soil in different strata is sampled. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings.

[0022] Figure 1 It is a structural view of the soil layered sampling device of the utility model;

[0023] Figure 2 It is a schematic view of the soil layered sampling device of the utility model Figure 1 ;

[0024] Figure 3 It is a schematic view of the soil layered sampling device of the utility modelFigure 2 ;

[0025] Figure 4 is a schematic view of the soil layered sampling device of the utility model Figure 3 ;

[0026] Figure 5 is a partial sectional view of the soil layered sampling device of the utility model.

[0027] The reference signs are as follows:

[0028] 101, boring cylinder; 102, operating rod; 103, spiral blade; 104, feeding port; 105, sample storage cavity; 201, clamping groove; 202, closing plate; 301, discharging port; 302, plugging; 4, earth digging plate; 501, rotating shaft; 502, gear; 503, meshing tooth; 504, hand wheel; 505, fixing sleeve; 506, locking screw. DETAILED DESCRIPTION

[0029] As shown in Figures 1-5 , a soil layered sampling device comprises:

[0030] The boring cylinder 101 is provided with the operating rod 102 at the top, and the bottom of the boring cylinder 101 is conical and provided with the spiral blade 103; in use, the operating rod 102 is held and a certain pressure is applied to rotate the boring cylinder 101, so that the boring cylinder 101 is bored into the stratum under the action of the spiral blade 103 to form a sampling base hole in the stratum;

[0031] Referring to Figure 2 , Figure 4 , Figure 5 , the sample storage structure is provided with a plurality of sample storage cavities 105, which are arranged in the boring cylinder 101 in a vertical direction; the sample storage structure comprises the sample storage cavities 105 arranged in the boring cylinder 101; the boring cylinder 101 is provided with the feeding port 104 and the discharging port 301 on the circumferential side wall; the feeding port 104 and the discharging port 301 are both in communication with the sample storage cavities 105, and the feeding port 104 and the discharging port 301 are oppositely arranged; the feeding port 104 is arranged to facilitate the soil sample to enter the corresponding sample storage cavity 105, and the discharging port 301 is arranged to facilitate the soil sample in the sample storage cavity 105 to be taken out for use; the plugging 302 is clamped in the discharging port 301, and the plugging 302 is clamped in the discharging port 301 during sampling to block the discharging port 301;

[0032] Referring to Figure 1 and Figure 2The closed structure is arranged on the circumferential side wall of the boring cylinder 101, and comprises a clamping groove 201 arranged vertically on the circumferential side wall of the boring cylinder 101. A closing plate 202 is clamped in the clamping groove 201, and the closing plate 202 is located at the mouth of the feeding port 104. The closing plate 202 arranged can be disassembled from the clamping groove 201. During the process of boring the sampling foundation hole in the stratum, the closing plate 202 remains covering the mouth of the feeding port 104 to close the feeding port 104, so as to avoid the soil entering the sample storage cavity 105 during the boring process of the sampling foundation hole.

[0033] Referring to Figure 2 and Figure 5 The earth digging shovel plate 4 is arranged in multiple numbers. The feeding port 104 is arranged in an arc shape along the circumferential direction of the boring cylinder 101. The earth digging shovel plate 4 is located in the feeding port 104. The arc-shaped arrangement of the feeding port 104 facilitates the better installation of the earth digging shovel plate 4 in the feeding port 104, so that the earth digging shovel plate 4 can be smoothly extended / retracted from the feeding port 104. During the process of boring the sampling foundation hole in the stratum, the earth digging shovel plate 4 is located inside the feeding port 104.

[0034] Referring to Figure 1 , Figure 2 , Figure 5 The operation structure is arranged in the boring cylinder 101. The operation structure comprises a rotating shaft 501 vertically arranged in the boring cylinder 101. A fixed sleeve 505 is arranged on the top of the boring cylinder 101. The top of the rotating shaft 501 penetrates out of the fixed sleeve 505 and is provided with a hand wheel 504. The rotating shaft 501 can be driven to rotate by rotating the hand wheel 504. The fixed sleeve 505 is screwed with a locking screw 506. When the rotating shaft 501 does not need to rotate, the locking screw 506 is screwed into the fixed sleeve 505, so that the screwed end of the locking screw 506 abuts against the rotating shaft 501, thereby locking and fixing the rotating shaft 501.

[0035] A plurality of gears 502 are arranged on the rotating shaft 501. Each gear 502 is located in a corresponding sample storage cavity 105. Each earth digging shovel plate 4 is provided with a meshing tooth 503. The meshing tooth 503 is engaged with the corresponding gear 502. When the rotating shaft 501 rotates, each gear 502 can be driven to rotate. When each gear 502 is engaged with the meshing tooth 503 on the corresponding earth digging shovel plate 4, each earth digging shovel plate 4 can be driven to extend out of the corresponding feeding port 104 to the outside of the boring cylinder 101, so that the extending end of each earth digging shovel plate 4 is inserted into the soil of the hole wall of the corresponding layer of the sampling foundation hole.

[0036] When the sample base hole is dug in the stratum, the closing plate 202 is removed from the clamping groove 201 to expose the feeding port 104, and then the hand wheel 504 is rotated to drive the rotating shaft 501 to rotate, so that the gear 502 is engaged with the meshing tooth 503 on the corresponding digging shovel plate 4, and the digging shovel plate 4 is driven to extend from the corresponding feeding port 104 to the outside of the digging cylinder 101, so that the extending end of the digging shovel plate 4 is inserted into the soil on the corresponding layer of the sample base hole, and then the locking screw 506 is screwed into the fixing sleeve 505, so that the rotating shaft 501 is locked and fixed, and the rotating shaft 501 is prevented from rotating;

[0037] When the rotating shaft 501 is locked, the digging cylinder 101 is rotated in place by rotating the operating rod 102 without applying pressure, and in the process of rotating in place, the digging shovel plate 4 scrapes the soil on the corresponding layer of the sample base hole, so that the soil on the corresponding layer of the sample base hole is scraped into the corresponding sample storage cavity 105 by the digging shovel plate 4, so as to complete the sampling of different strata; when the soil samples of each layer are scraped into the corresponding sample storage cavity 105, the rotating shaft 501 is rotated, so that the digging shovel plate 4 is moved back and stored in the feeding port 104 under the transmission of the gear 502 and the meshing tooth 503, and then the digging cylinder 101 is pulled out of the sample base hole, so as to complete the stratified sampling of the soil; and when the digging cylinder 101 is pulled out of the sample base hole, the blocking plug 302 is removed from the discharge port 301, so that the soil samples in the sample storage cavity 105 can be poured out for use.

[0038] The utility model is introduced in detail above. The description of the specific embodiment is only used to help understand the method and the core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A soil coring device, characterised in that: Include: The driving cylinder (101) is provided with an operating rod (102) at the top, and the bottom is conical and provided with a spiral blade (103); The sample storage structure is provided with multiple and is arranged in the driving cylinder (101) in the vertical direction; The closing structure is arranged on the peripheral wall of the driving cylinder (101), which is used for closing the inlet of the sample storage structure; The soil cutting blade (4) is provided with multiple and is arranged at the corresponding sample storage structure respectively; The operating structure is arranged in the driving cylinder (101), which is used for adjusting the position of each soil cutting blade (4).

2. A soil layer sampling device according to claim 1, characterised in that: The sample storage structure includes a sample storage cavity (105) arranged inside the driving cylinder (101), and the peripheral wall of the driving cylinder (101) is provided with an inlet (104) and a discharge port (301), the inlet (104) and the discharge port (301) are communicated with the sample storage cavity (105), the inlet (104) and the discharge port (301) are oppositely arranged, and the discharge port (301) is provided with a blocking plug (302).

3. A soil layer sampling device according to claim 2, wherein: The closing structure includes a clamping groove (201) vertically arranged on the peripheral wall of the driving cylinder (101), and the clamping groove (201) is provided with a closing plate (202), and the closing plate (202) is located at the inlet (104) port.

4. A soil coring device according to claim 2, wherein: The inlet (104) is arranged in an arc shape along the peripheral direction of the driving cylinder (101), and the soil cutting blade (4) is located in the inlet (104).

5. A soil coring device according to claim 2, wherein: The operating structure includes a rotating shaft (501) vertically arranged in the driving cylinder (101), and the top of the rotating shaft (501) penetrates out of the fixed sleeve (505) and is provided with a hand wheel (504), and the fixed sleeve (505) is screwed with a locking screw (506); The rotating shaft (501) is provided with multiple gears (502), each gear (502) is located in the corresponding sample storage cavity (105), and each soil cutting blade (4) is provided with a meshing tooth (503), and the meshing tooth (503) is engaged with the corresponding gear (502).

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