CN114813220A - A portable sampling device for soil quality detection - Google Patents

Abstract

The invention discloses a portable sampling device for soil quality detection, comprising an isolation cylinder, and a hollowing assembly or a sampling assembly is detachably connected to the interior of the isolating cylinder; The conveying part for transporting the soil in the isolation cylinder, and the excavation part is arranged below the isolation cylinder; the sampling assembly includes several sampling cylinders arranged in the isolation cylinder, all the sampling cylinders are connected with a first driving part, and the first driving part drives the sampling The cartridge is inserted into the soil through the isolation cartridge. When the invention works, the soil under the isolation cylinder is cut and excavated by the excavation part to loosen the soil, and all the soil entering the isolation cylinder is removed from the isolation cylinder through the conveying part in the isolation cylinder, and the first driving part drives the The sampling cylinder is inserted into the soil through the isolation cylinder, and soil samples of different depths are collected at one time to avoid sampling errors.

Description

A portable sampling device for soil quality detection

technical field

The invention relates to the technical field of soil sampling, in particular to a portable sampling device for soil quality detection.

Background technique

The existence form and concentration of various nutrients and soil pollutants in soil directly affect plant growth and animal and human health. The chemical indicators of soil quality mainly include nitrogen, phosphorus, potassium and organic matter. Sampling refers to the process of taking individuals or samples from a population, that is, the process of conducting experiments or observations on the population. Soil sampling is the basic content of research on environment, ecology and agriculture. Accurate, appropriate and rapid acquisition of soil samples at different soil depths is directly related to the accuracy of research and the reliability of data.

As a tool for soil collection, soil sampling device directly affects the labor intensity and work efficiency of soil sampling. Due to the relatively large contact area between the existing earth borrower and the soil surface, as the sampling depth increases, the insertion resistance will also increase, which makes the insertion and removal process of the earth borrower into the soil difficult, time-consuming and labor-intensive. The method of deep soil sampling is not only time-consuming and labor-intensive, but also causes sampling errors.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a portable sampling device for soil quality detection, so as to solve the above problems existing in the prior art.

For achieving the above object, the present invention provides following scheme:

The present invention provides a portable sampling device for soil quality detection, comprising an isolation cylinder, wherein a hollowing assembly or a sampling assembly is detachably connected to the interior of the isolation cylinder;

The hollowing assembly comprises a driving part for cutting and excavating the soil below the isolation cylinder and a conveying part for transporting the soil in the isolation cylinder, the driving part is arranged below the isolation cylinder;

The sampling assembly includes several sampling cylinders arranged in the isolation cylinder, all the sampling cylinders are connected with a first driving part, and the first driving part drives the sampling cylinders to penetrate through the isolation cylinder and insert into the soil .

Preferably, the excavation part includes a driving rod, one end of the driving rod is detachably connected with the excavation cutter head, and the other end of the driving rod is detachably connected with the first driving motor.

Preferably, the bottom end of the isolation cylinder is fixedly provided with an arc-shaped tool tip, the outer side wall of the arc-shaped blade tip and the outer side wall of the isolation cylinder are located in the same plane, and the excavation cutter head is arranged on the arc The diameter of the excavation cutter head is smaller than the diameter of the arc-shaped cutter tip.

Preferably, a first fixing bracket is fixedly arranged above the arc-shaped blade tip of the isolation cylinder, and a plurality of connections for communicating the spaces between the upper and lower ends of the first fixing bracket are provided on the first fixing bracket. The top of the isolation cylinder is detachably connected with an excavation bracket, the two ends of the driving rod respectively penetrate the first fixed bracket and the excavation bracket, and the driving rod is respectively connected with the first fixed bracket, The excavation support is rotatably connected, and the driving rod is sleeved with a dividing cylinder between the first fixed support and the excavation support.

Preferably, the conveying part includes a conveying cylinder rotatably connected inside the isolation cylinder, the interior of the conveying cylinder is fixedly connected with a coreless helical blade, and the dividing cylinder is arranged along the central axis of the coreless helical blade and is A gap is provided between the two, and an excavation port is provided on the top of the coreless helical blade in the circumferential direction of the excavation support; the conveying cylinder is driven to rotate by the second driving part.

Preferably, the second driving part includes a plurality of fixing rods fixedly arranged on the top of the conveying drum, the tops of all the fixing rods are connected with a driving ring through the excavation bracket, and wheels are fixedly arranged on the circumference of the driving ring A second drive motor is fixedly connected to the excavation bracket, and an output shaft of the second drive motor is detachably connected to a drive gear, and the drive gear is meshed with the gear teeth.

Preferably, the first driving part includes a lead screw, a middle part of the lead screw is provided with a mounting cavity for accommodating a drive rod, the lead screw and the drive rod are detachably connected, and the lead screw is threadedly connected with several A nut is connected to different sampling cylinders, a rotating rod is hinged between the nut and the sampling cylinder, a limit cylinder is detachably connected in the isolation cylinder, and a number of limit cylinders are opened on the limit cylinder A limit through hole for lateral movement of the sampling tube.

Preferably, a sampling bracket is detachably connected to the top of the isolation cylinder, and the upper and lower ends of the limiting cylinder are detachably connected to the first fixing bracket and the sampling bracket, respectively.

Preferably, each of the nuts is connected with not less than two of the sampling cylinders.

The invention discloses the following technical effects: when the invention works, the soil under the isolation cylinder is cut and excavated by the excavation part, so that the soil becomes loose, and all the soil entering the isolation cylinder is removed through the conveying part in the isolation cylinder. The isolation cylinder is convenient for soil sampling in the later stage. After cleaning, the hollowing assembly is removed and the sampling assembly is installed. The first driving part drives the sampling cylinder to penetrate the isolation cylinder and insert it into the soil to obtain soil samples of different depths and reduce sampling errors. In addition, the present application separates the hollowing operation and the sampling operation, so as to avoid the increase of the insertion resistance of the conventional earth borrowing device with the increase of the sampling depth, resulting in the occurrence of problems such as difficulty in the insertion and removal process of the earth borrowing device in the soil, and Soil samples at different depths can be collected at one time to avoid sampling errors.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a hollowing assembly of the present invention;

FIG. 2 is a schematic structural diagram of the sampling assembly of the present invention.

Wherein, 1 is the isolation cylinder, 2 is the sampling cylinder, 3 is the driving rod, 4 is the excavation cutter head, 5 is the first driving motor, 6 is the arc-shaped tool tip, 7 is the first fixing bracket, 8 is the communication hole, 9 10 is a dividing cylinder, 11 is a conveying cylinder, 12 is a coreless helical blade, 13 is an excavation port, 14 is a fixed rod, 15 is a driving ring, 16 is a gear tooth, 17 is a second drive motor, and 18 is a The driving gear, 19 is a lead screw, 20 is a nut, 21 is a rotating rod, 22 is a limit cylinder, 23 is a limit through hole, and 24 is a sampling bracket.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Referring to Figures 1-2, the present invention discloses a portable sampling device for soil quality detection, comprising an isolation cylinder 1, and the interior of the isolation cylinder 1 is detachably connected with a hollowing assembly or a sampling assembly.

The excavation assembly includes an excavation part for cutting the soil under the isolation drum 1 and a conveying part for transporting the soil in the isolation drum 1 out. The excavation part is arranged below the isolation drum 1; The soil under the cylinder 1 is cut and excavated to loosen the soil, and all the soil entering the isolation cylinder 1 is removed from the isolation cylinder through the conveying part in the isolation cylinder 1, which is convenient for later soil sampling.

The sampling assembly includes a plurality of sampling cylinders 2 arranged in the isolation cylinder 1. All sampling cylinders 2 are connected with a first driving part. The first driving part drives the sampling cylinders 2 to penetrate through the isolation cylinder 1 and insert them into the soil. The upper part is provided with an opening for sampling the sampling cylinder 2 . After the above operations, the isolation cylinder 1 has entered the soil below it, and the soil in the isolation cylinder 1 has been cleaned; the first driving part drives the sampling cylinder 2 to penetrate the isolation cylinder 1 and insert it into the soil to obtain soils of different depths. sample to reduce sampling error. In addition, the present application separates the hollowing operation and the sampling operation, and sampling operations at different depths can be selected according to needs.

To further optimize the solution, the excavation part includes a driving rod 3, one end of the driving rod 3 is detachably connected with the driving cutter head 4, and the other end of the driving rod 3 is detachably connected with a first driving motor 5, and the driving rod is driven by the first driving motor 5. 3 rotates, the driving rod 3 drives the excavation cutter head 4 to work, and cuts and excavates the soil in contact with it, so that the soil becomes loose.

To further optimize the solution, the bottom end of the isolation cylinder 1 is fixedly provided with an arc-shaped tool tip 6, the outer side wall of the arc-shaped tool tip 6 and the outer side wall of the isolation cylinder 1 are located in the same plane, and the excavating cutter disc 4 is arranged on the arc-shaped tool tip 6. and the diameter of the excavating cutter head 4 is smaller than the diameter of the arc-shaped tool tip 6, the excavated sampling pit is protected by the isolation cylinder 1 to prevent the soil from the side wall of the sampling pit from falling off and causing inaccurate sampling; The arc-shaped knife tip 6 at the bottom cuts the soil attached to the sampling pit to form a smooth side wall of the sampling pit, so as to prevent the falling soil from falling on the side wall, so that the obtained soil sample is more accurate.

To further optimize the solution, the isolation cylinder 1 is fixedly provided with a first fixing bracket 7 above the arc-shaped blade tip 6, and the first fixing bracket 7 is provided with a number of communication holes 8 for communicating the spaces between the upper and lower ends of the first fixing bracket 7. The top of the isolation cylinder 1 is detachably connected with the excavation support 9, the two ends of the drive rod 3 penetrate the first fixed support 7 and the excavation support 9 respectively, and the drive rod 3 is rotatably connected with the first fixed support 7 and the excavation support 9, respectively, The driving rod 3 is sleeved with a dividing cylinder 10 between the first fixing bracket 7 and the driving bracket 9 . The driving rod 3 is restricted by the first fixing bracket 7 and the excavation bracket 9 to prevent the driving rod 3 from deflecting, resulting in the failure of excavation of the sampling pit, and the loose soil after cutting and excavation can enter the interior of the isolation cylinder 1 through the communication hole, And it is transported to the outside of the isolation cylinder 1 by the conveying part, and after the excavation is completed, all the soil inside can be removed. The dividing cylinder 10 can prevent the loose soil from producing resistance to the driving rod 3 .

To further optimize the solution, the conveying part includes a conveying cylinder 11 that is rotatably connected to the interior of the isolation cylinder 1, the interior of the conveying cylinder 11 is fixedly connected with a coreless helical blade 12, and the dividing cylinder 10 is arranged along the central axis of the coreless helical blade 12 and the other is between the two. There is a gap between them, and the excavation port 13 is provided on the excavation bracket 9 in the circumferential direction of the top of the coreless helical blade 12 ; the conveying drum 11 is driven to rotate by the second driving part, and the conveying drum 11 The rotation drives the coreless helical blade 12 fixed to it to work. Under the action of the coreless helical blade 12, all the soil entering above the first fixed bracket 7 is transported upward, and is discharged from the isolation cylinder 1 through the excavation opening 13, thereby Soilless or less soil is formed in the isolation cylinder 1 .

To further optimize the solution, the second driving part includes several fixed rods 14 fixedly arranged on the top of the conveying cylinder 11, the tops of all the fixed rods 14 are connected to the driving ring 15 through the excavation bracket 9, and the circumferential direction of the driving ring 15 is fixedly provided with gear teeth 16. A second drive motor 17 is fixedly connected to the excavation bracket 9. The output shaft of the second drive motor 17 is detachably connected to a drive gear 18. The drive gear 18 is meshed with the gear teeth 16, and the drive gear 18 is driven by the second drive motor 17. Rotation, under the rotation of the drive gear 18, the gear teeth 16 drive the drive ring 15 to rotate, which in turn drives the conveying cylinder 11 to rotate, thereby conveying the soil out, preventing the sampling pit from being successfully excavated, but there is still a large amount of soil in the sampling pit.

The first driving part includes a lead screw 19, a mounting cavity for accommodating the drive rod 3 is opened in the middle of the lead screw 19, and the lead screw 19 and the drive rod 3 are detachably connected, and a number of nuts 20 are threadedly connected to the lead screw 19. 20 is connected with different sampling cylinders 2, a rotating rod 21 is hinged between the nut 20 and the sampling cylinder 2, a limit cylinder 22 is detachably connected in the isolation cylinder 1, and a number of limit cylinders 22 are provided on the limit cylinder 22 for the sampling cylinder 2. Limiting through holes 23 for lateral movement. The top of the isolation cylinder 1 is detachably connected with a sampling support 24, the upper and lower ends of the limiting cylinder 22 are detachably connected with the first fixed support 7 and the sampling support 24, and each nut 20 is connected with no less than two sampling Tube 2.

After the above work, the hollowing out assembly is removed from the isolation cylinder 1, but the excavation cutter head 4 and the driving rod need to be retained, the assembled sampling assembly is installed into the isolation cylinder 1, and the lead screw 19 and the driving rod are installed. 3 is connected by connecting parts such as bolts and keys, and the first driving motor 5 is connected with the driving rod 3, and the driving rod 3 is driven to rotate by the first driving motor 5, thereby driving the lead screw 19 to rotate. Under the action of the nut 20, the nut 20 moves downward, and under the action of the rotating rod 21, the sampling cylinder 2 is driven to move laterally along the limit through hole 23, so that the sampling cylinder 2 penetrates the isolation cylinder 1 and is inserted into the soil, thereby completing the soil sampling work.

In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The above-mentioned embodiments are only to describe the preferred modes of the present invention, but not to limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art can make various modifications to the technical solutions of the present invention. Variations and improvements should fall within the protection scope determined by the claims of the present invention.

Claims (9)

1. The utility model provides a portable sampling device for soil quality testing which characterized in that: the device comprises an isolation cylinder (1), wherein a digging component or a sampling component is detachably connected in the isolation cylinder (1);

the tunneling assembly comprises a tunneling part and a conveying part, wherein the tunneling part is used for cutting and tunneling soil below the isolation cylinder (1), and the conveying part is used for conveying the soil in the isolation cylinder (1), and the tunneling part is arranged below the isolation cylinder (1);

the sampling subassembly includes that a plurality of sets up sampler barrel (2) in isolation section of thick bamboo (1), all sampler barrel (2) are connected with first drive division, the drive of first drive division sampler barrel (2) run through isolation section of thick bamboo (1) inserts in the soil.

2. The portable sampling device for soil quality testing according to claim 1, wherein: the tunneling part comprises a driving rod (3), one end of the driving rod (3) can be detachably connected with a tunneling cutter head (4), and the other end of the driving rod (3) can be detachably connected with a first driving motor (5).

3. The portable sampling device for soil quality detection according to claim 2, wherein: the bottom mounting of a spacer (1) is provided with ARC knife tip (6), the lateral wall of ARC knife tip (6) with the lateral wall of a spacer (1) is located the coplanar, tunnelling cutter dish (4) set up the below of ARC knife tip (6), just the diameter of tunnelling cutter dish (4) is less than the diameter of ARC knife tip (6).

4. The portable sampling device for soil quality detection as recited in claim 3, wherein: a first fixing support (7) is fixedly arranged above the arc-shaped cutter point (6) of the isolation cylinder (1), and a plurality of communicating holes (8) used for communicating the spaces at the upper end and the lower end of the first fixing support (7) are formed in the first fixing support (7); the top of an isolation cylinder (1) can be dismantled and be connected with tunnelling support (9), the both ends of actuating lever (3) run through respectively first fixed bolster (7) with tunnelling support (9), just actuating lever (3) respectively with first fixed bolster (7) tunnelling support (9) rotate to be connected, actuating lever (3) be in first fixed bolster (7) with the cover is equipped with between tunnelling support (9) and cuts apart a section of thick bamboo (10).

5. The portable sampling device for soil quality detection as recited in claim 4, wherein: the conveying part comprises a conveying cylinder (11) which is rotatably connected inside the isolation cylinder (1), a coreless helical blade (12) is fixedly connected inside the conveying cylinder (11), the dividing cylinder (10) is arranged along the central axis of the coreless helical blade (12), a gap is arranged between the coreless helical blade and the dividing cylinder, and a soil outlet (13) is formed in the tunneling support (9) in the circumferential direction of the top of the coreless helical blade (12); the conveying cylinder (11) is driven to rotate by a second driving part.

6. The portable sampling device for soil quality detection as recited in claim 5, wherein: the second driving part comprises a plurality of fixing rods (14) fixedly arranged at the top of the conveying barrel (11), the tops of all the fixing rods (14) penetrate through the tunneling support (9) and are connected with a driving ring (15), gear teeth (16) are fixedly arranged on the circumferential direction of the driving ring (15), the tunneling support (9) is fixedly connected with a second driving motor (17), an output shaft of the second driving motor (17) is detachably connected with a driving gear (18), and the driving gear (18) is meshed with the gear teeth (16).

7. The portable sampling device for soil quality detection as recited in claim 4, wherein: first drive division includes lead screw (19), the installation cavity that is used for holding actuating lever (3) is offered at the middle part of lead screw (19), just lead screw (19) and actuating lever (3) can be dismantled and be connected, threaded connection has a plurality of nut (20) on lead screw (19), nut (20) and difference sampler barrel (2) are connected, it has dwang (21) to articulate between nut (20) and sampler barrel (2), can dismantle in isolation section of thick bamboo (1) and be connected with spacing section of thick bamboo (22), it is used for the confession to have seted up a plurality of on spacing section of thick bamboo (22) sampler barrel (2) transverse movement's spacing through-hole (23).

8. The portable sampling device for soil quality testing according to claim 7, wherein: the top of an isolation cylinder (1) is detachably connected with a sampling support (24), and the upper end and the lower end of a limiting cylinder (22) are detachably connected with a first fixing support (7) and the sampling support (24) respectively.

9. The portable sampling device for soil quality testing according to claim 7, wherein: every nut (20) all is connected with and is no less than two sampler barrel (2).

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