Soil sampling device and method of sampling

Abstract

The application discloses a soil sampling device and a sampling method thereof and belongs to the field of soil sampling devices. The soil sampling device comprises a collecting cylinder, the upper end of the collecting cylinder is detachably connected with a transition sleeve, and the upper end of the transition sleeve is provided with a rotating rod for transmitting power. With the continuous downward movement of the pushing rod, the cone body moves downward together with the pipe body, so that a circular channel is opened in the undisturbed soil in the cylinder body. When the cone body reaches the specified depth, the pushing rod is pulled upward again. With the upward movement of the pushing rod, the soil breaking cone and the sampling pipe move upward, the earth block is scraped on the inner wall of the circular channel, the soil on the inner wall of the circular channel falls off and then falls into the pipe body, and when the pipe body is full, the soil cannot enter the pipe body. In this way, the soil can be obtained by controlling the position of the pipe body sinking and then pulling the pushing rod, and the required soil core can be accurately extracted.

Description

Technical Field

[0001] This invention relates to the field of soil sampling devices, specifically a soil sampling device and its sampling method. Background Technology

[0002] Soil sampling is a method for testing the soil environment in a region. Currently, most soil sampling methods involve directly inserting the sampling head of the sampling device into the ground, then pulling the sampling head out with external force, and finally collecting the soil residue inside the sampling head for testing. However, this sampling method has the following problems:

[0003] 1. Existing sampling equipment leaves a hole in the ground that is either compatible with or larger than the sampling head. This hole can affect local residents or small animals. For example, residents may not see the hole and step into it and fall, or small animals may fall into the hole and be unable to climb out.

[0004] 2. After sampling, it is very troublesome to separately remove the soil from the sampling head and store it in a designated container.

[0005] 3. When it is necessary to sample the soil core (soil core refers to soil far away from the soil surface), normal sampling must be carried out first, and then the undisturbed soil is divided into segments, and only the soil core is retained. It is not possible to directly obtain the soil core as needed. This method is not only cumbersome, but also damages the environment and leaves unnecessary pits on the ground.

[0006] Therefore, the present invention provides a soil sampling device and a sampling method thereof to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a soil sampling device and sampling method to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] In a first aspect, the present disclosure provides a soil sampling device, including a sampling tube, characterized in that a transition sleeve is detachably connected to the upper end of the sampling tube, a rotating rod for transmitting power is installed at the upper end of the transition sleeve, a power mechanism is installed on the rotating rod, and the power mechanism is used to provide power to the rotating rod;

[0010] The collection tube includes a tube body, and a guide channel is provided at the top of the inner end of the tube body. A soil-breaking cone for secondary soil breaking is installed inside the guide channel. A sampling tube for holding soil core is clamped at the upper end of the soil-breaking cone, and the sampling tube is located inside the transition sleeve.

[0011] The transition sleeve is equipped with a push rod for pushing the soil-breaking cone, and the upper end of the push rod passes through the rotating rod.

[0012] The soil sampling device provided in this embodiment includes a cone body, a sliding sleeve fixedly connected to the outside of the cone body, and a bearing sleeve for supporting the sampling tube slidably connected inside the sliding sleeve.

[0013] In the soil sampling device provided in this embodiment, the cone has two limiting plates inside, which are symmetrically arranged and rotatably connected to the cone. The outer wall of the push rod has two slots corresponding to the limiting plates.

[0014] In the soil sampling device provided in this embodiment, a return spring is provided between the limiting plate and the cone. The two ends of the return spring are fixed to the limiting plate and the cone respectively. An expansion frame is installed between the limiting plate and the cone. The expansion frame is fixedly connected to the bearing sleeve through a push rod.

[0015] The sampling tube in the soil sampling device provided in this embodiment includes a tube body, an installation sleeve connected to the upper end of the tube body, a plurality of soil shovels for collecting soil installed on the outer wall of the installation sleeve, a movable block for applying pressure installed above the soil shovels, and a plurality of fixed blocks for support installed at the lower end of the soil shovels, wherein the soil shovels and the fixed blocks are slidably connected.

[0016] In the soil sampling device provided in this embodiment, the shovel block is fixedly connected to an inclined block, and the movable block is fixedly connected to an adjusting rod, with the adjusting rod opposite to the inclined block.

[0017] Secondly, embodiments of this disclosure provide a sampling method for a soil sampling device, comprising the following steps:

[0018] S1: After the cylinder enters the soil, the sampling tube is inserted into the bearing sleeve. Then, the push rod is pushed from top to bottom, so that the push rod drives the soil-breaking cone and the sampling tube to move together in the soil inside the cylinder, thereby forming a circular channel in the middle of the soil inside the cylinder.

[0019] S2: When the cone reaches the specified depth, pull the push rod upward. As the push rod moves upward, the soil-breaking cone and the sampling tube will move upward. At this time, the movable block and the bearing sleeve will be blocked by the soil. When the movable block is blocked by the soil, it will move downward and push the shovel block outward through the adjusting rod. As the sampling tube moves upward, the shovel block will scrape the inner wall of the circular channel, causing the soil on the inner wall of the circular channel to fall off and fall into the tube. When the tube is full, no more soil will enter the tube.

[0020] S3: Finally, after the cone enters the guide channel, put your hand into the transition sleeve to restrain the soil-breaking cone, then lift the bearing sleeve upwards, pull the push rod forcefully to pull the push rod out of the tube body, then take out the sampling tube, separate the installation sleeve from the tube body, and finally seal and store the tube body.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. When using this invention, when soil core collection is required, the push rod is pushed. After the push rod enters the cone, it pushes the limiting plate, causing the two limiting plates to move closer together and lock into the slot. As the push rod continues to move downward, the cone will move downward along with the tube, thus creating a circular channel in the original soil inside the tube. When the cone reaches the specified depth, the push rod is pulled upward. As the push rod moves upward, both the soil-breaking cone and the sampling tube will move upward. At this time, the movable block and the bearing sleeve will be blocked by the soil. The movable block will push the shovel block outward through the adjusting rod. When the shovel block moves outward, as the sampling tube moves upward, the shovel block will scrape the inner wall of the circular channel, causing the soil on the inner wall of the circular channel to fall off and into the tube. When the tube is full, no more soil will enter the tube. By controlling the sinking position of the tube in this way, and then pulling the push rod, the soil inside the original soil during the process of the tube moving from the bottom to the top and being filled with soil can be obtained, thus accurately extracting the required soil core.

[0023] 2. When using this invention, after the cone enters the guide channel, put your hand into the transition sleeve to restrict the soil-breaking cone, then lift the bearing sleeve upwards, and finally pull the push rod to pull it out of the tube. Then take out the sampling tube, separate the installation sleeve from the tube, and finally seal and store the tube. In this way, there is no need to transfer the obtained soil to other containers again, thus saving sampling time.

[0024] 3. Traditional sampling devices leave a pit in the ground after sampling, which is adapted to the sampling device. However, the present invention uses a sampling tube to sample the soil core, which greatly reduces the damage to the soil during sampling and leaves only a pit that is adapted to the size of the tube. This prevents small animals from falling into the pit and reduces the damage to the ecological environment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a soil sampling device.

[0026] Figure 2 This is a split diagram of a soil sampling device.

[0027] Figure 3 This is a structural diagram of the sampling tube in a soil sampling device.

[0028] Figure 4 This is a structural diagram of a soil-breaking cone in a soil sampling device.

[0029] Figure 5 This is a cross-sectional view of a soil-breaking cone in a soil sampling device.

[0030] Figure 6 This is a structural diagram of a sampling tube in a soil sampling device.

[0031] Figure 7 This is a split diagram of a sampling tube in a soil sampling device.

[0032] Figure 8 In a soil sampling device Figure 2 Enlarged diagram of point A in the middle.

[0033] Figure 9 In a soil sampling device Figure 7 Enlarged diagram of point B in the middle.

[0034] Figure 10 This is a schematic diagram of the structure of the cylinder in Example 2.

[0035] Figure 11 This is a partial structural diagram of the soil sampling device in Example 3.

[0036] Figure 12 This is a schematic diagram of the internal structure of the top block in Example 3.

[0037] In the diagram: 1. Sampling cylinder; 2. Transition sleeve; 3. Rotating rod; 4. Power mechanism; 5. Push rod; 6. Soil-breaking cone; 7. Sampling tube; 100. Cylinder body; 101. Cover plate; 102. Guide channel; 103. Second graduation; 500. Slot; 600. Cone body; 601. Sliding sleeve; 602. Bearing sleeve; 603. Limiting groove; 604. Limiting block; 605. Limiting plate; 606. Return spring; 607. 608. Expansion frame; 700. Push rod; 701. Pipe body; 702. Fixed block; 703. Movable block; 704. Soil-shoveling block; 705. Sliding block; 706. Adjusting rod; 707. Mounting sleeve; 808. Lifting mechanism; 801. Electric telescopic rod; 802. Top block; 803. Shell; 804. Base plate; 805. Receiving cavity; 806. Vibration motor; 807. Rubber pad; 808. Foot pedal. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1:

[0040] Please see Figure 1 and 2 A soil sampling device includes a sampling cylinder 1, with a transition sleeve 2 detachably connected to the upper end of the sampling cylinder 1. A rotating rod 3 for transmitting power is installed on the upper end of the transition sleeve 2. A power mechanism 4 is installed on the rotating rod 3 to provide power to the rotating rod 3. The power mechanism 4 includes a fixed plate (not shown), a gear box (not shown) is installed on the upper end of the fixed plate, and the gear box is connected to the rotating rod 3 through a bearing (not shown). An equipment box (not shown) is also installed at the end of the fixed plate away from the transition sleeve 2. A drive motor (not shown) is installed inside the equipment box, and a power gear (not shown) is installed on the output shaft of the drive motor. A driven gear (not shown) is sleeved on the outside of the rotating rod 3, and the driven gear meshes with the power gear.

[0041] Please see Figure 3 The sampling cylinder 1 includes a cylinder body 100. Multiple saw teeth are installed at the lower end of the cylinder body 100 to increase its soil-breaking ability. A virgin soil sampling window is provided on the outer wall of the cylinder body 100. Virgin soil refers to soil inside the cylinder body 100 that has not been disturbed during sampling. A cover plate 101 is installed inside the virgin soil sampling window and is bolted to the cylinder body 100. A guide channel 102 is provided at the top of the inner part of the cylinder body 100 and communicates with a transition sleeve 2. A circular window (not shown) is provided at the lower end of the transition sleeve 2, corresponding to the guide channel 102. A soil-breaking cone 6 for secondary soil breaking is installed inside the guide channel 102. The inner wall of the guide channel 102 is fixed... A rubber sleeve (not shown) is provided to increase the sliding resistance between the soil-breaking cone 6 and the cylinder 100. A sampling tube 7 for holding soil cores is clamped at the upper end of the soil-breaking cone 6, and the sampling tube 7 is located inside the transition sleeve 2. A connection window (not shown) is opened on the outer wall of the transition sleeve 2, and a protective door is installed inside the connection window (not shown). The connection window (not shown) facilitates the connection of the sampling tube 7 and the soil-breaking cone 6 inside the transition sleeve 2. The transition sleeve 2 is provided with a push rod 5 for pushing the soil-breaking cone 6, and the upper end of the push rod 5 passes through the rotating rod 3. A first scale (not shown) is provided on the outer wall of the push rod 5. Through the cooperation of the push rod 5, the soil-breaking cone 6 and the sampling tube 7, soil cores can be directly taken from the cylinder 100.

[0042] Please see Figure 4 , 5 The soil-breaking cone 6 includes a cone 600, a sliding sleeve 601 fixedly connected to the outside of the cone 600, and a bearing sleeve 602 for supporting the sampling tube 7 slidably connected inside the sliding sleeve 601. The maximum outer diameter of the bearing sleeve 602 is the same as the maximum outer diameter of the sliding sleeve 601. A limiting block 604 is provided on the outer wall of the bearing sleeve 602, and a limiting groove 603 corresponding to the limiting block 604 is provided on the inner wall of the sliding sleeve 601. The limiting block 604 is located in the limiting groove 603, and the length of the limiting groove 603 is greater than the length of the limiting block 604. When the bearing sleeve 602 moves down with the cone 600, the bearing sleeve 602 will be restricted by the limiting groove 603, so that the bearing sleeve 602 will not move upward due to the resistance of the soil.

[0043] The cone 600 has two limiting plates 605 inside, which are symmetrically arranged and rotatably connected to the cone. The limiting plates 605 lock the push rod 5. The outer wall of the push rod 5 has two slots 500 corresponding to the limiting plates 605. A return spring 606 is provided between the limiting plates 605 and the cone, with its two ends fixed to the limiting plates and the cone respectively. An expansion frame is installed between the limiting plates 605 and the cone 600. 607, the expansion frame 607 is connected to the bearing sleeve 602 via a push rod 608. The push rod 608 passes through the top of the cone 600 and is slidably connected to the cone 600. The expansion frame 607 includes two support plates. One support plate is rotatably connected to the limiting plate 605, and the other support plate is rotatably connected to the inner wall of the cone 600. The two support plates are rotatably connected to each other via a shaft. Both ends of the shaft are rotatably connected to connecting frames. Both connecting frames are fixedly connected to the push rod 608.

[0044] Please see Figure 6 , 7 9. The sampling tube 7 includes a tube body 700, one end of which is inserted into the bearing sleeve 602. The tube body 700, the bearing sleeve 602, and the cone 600 all have circular openings in the middle. The upper end of the tube body 700 is connected to an installation sleeve 707. Several soil shovels 703 for collecting soil are installed on the outer wall of the installation sleeve 707. A movable block 702 for applying pressure is installed above the soil shovels 703. The outer diameter of the movable block 702 is the same as the outer diameter of the sliding sleeve 601. An annular groove is opened on the outer wall of the installation sleeve 707. The movable block 702 is located in the annular groove. Several fixed blocks 701 for support are installed at the lower end of the soil shovels 703. The fixed blocks 701 do not contact each other. The soil shovels 703 are slidably connected to the fixed blocks 701. A sliding block 704 is fixedly connected to the soil shovels 703. The fixed block 701 has a sliding groove corresponding to the sliding block 704, and the sliding block 704 is located in the sliding groove.

[0045] The shovel block 703 is fixedly connected to the inclined block 705, and the movable block 702 is fixedly connected to the adjusting rod 706, which corresponds to the inclined block 705.

[0046] The sampling method of this soil sampling device includes the following steps:

[0047] S1: After the cylinder enters the soil, the sampling tube is inserted into the bearing sleeve. Then, the push rod is pushed from top to bottom, so that the push rod drives the soil-breaking cone and the sampling tube to move together in the soil inside the cylinder, thereby forming a circular channel in the middle of the soil inside the cylinder.

[0048] S2: When the cone reaches the specified depth, pull the push rod upward. As the push rod moves upward, the soil-breaking cone and the sampling tube will move upward. At this time, the movable block and the bearing sleeve will be blocked by the soil. When the movable block is blocked by the soil, it will move downward and push the shovel block outward through the adjusting rod. As the sampling tube moves upward, the shovel block will scrape the inner wall of the circular channel, causing the soil on the inner wall of the circular channel to fall off and fall into the tube. When the tube is full, no more soil will enter the tube.

[0049] S3: Finally, after the cone enters the guide channel, put your hand into the transition sleeve to restrain the soil-breaking cone, then lift the bearing sleeve upwards, pull the push rod forcefully to pull the push rod out of the tube body, then take out the sampling tube, separate the installation sleeve from the tube body, and finally seal and store the tube body.

[0050] The working principle of this invention is:

[0051] When using this invention, the cylinder 100 is aligned with the collection area, and then the drive motor is turned on to rotate the rotating rod 3, so that the cylinder 100 enters the soil. When it is necessary to collect a soil core (the soil core refers to the soil away from the soil surface), after the cylinder 100 enters the soil, the sampling tube 7 is inserted into the bearing sleeve 602, and then the push rod 5 is pushed from top to bottom. During this process, the push rod 5 will pass through the tube 700 and the bearing sleeve 602 and enter the cone 600. After the push rod 5 enters the cone 600, it will push the limiting plate 605 so that the two limiting plates 605 are close to each other and thus lock into the slot 500. When the limiting plates 605 are close to each other, they will drive the bearing sleeve 602 to move down through the expansion frame 607, so that the outer edge of the bearing sleeve 602 contacts the top of the sliding sleeve 601, thereby preventing soil from entering between the sliding sleeve 601 and the bearing sleeve 602.

[0052] As the push rod 5 continues to move downwards, the cone 600 moves downwards along with the tube 700, thus creating a circular channel in the original soil within the cylinder 100. Once the cone 600 reaches the designated depth, the push rod 5 is pulled upwards. As the push rod 5 moves upwards, the outer wall of the top of the bearing sleeve 602 scrapes against the inner wall of the circular channel, encountering resistance from the soil. At this point, the bearing sleeve 602 restricts the reset of the limiting plate 605, causing the limiting plate 605 to remain engaged with the push rod 5. As the push rod 5 moves upwards, both the soil-breaking cone 6 and the sampling tube 7 move upwards. At this point, the movable block 702, like the bearing sleeve 602, is also blocked by the soil. When soil obstructs the flow, the soil shovel 703 moves outward via the adjusting rod 706. As the sampling tube 7 moves upward, the soil shovel 703 scrapes the inner wall of the circular channel, causing the soil on the inner wall to fall into the tube 700. Once the tube 700 is full, no more soil will enter. In this way, by controlling the position of the tube 700 as it sinks, and then pulling the push rod 5, the soil inside the original soil during the process of the tube 700 moving from the bottom to the top and being filled with soil can be retrieved, thus accurately extracting the required soil core (the soil core refers to the soil inside the soil).

[0053] Finally, once the cone 600 enters the guide channel 102, reach into the transition sleeve 2 to restrain the soil-breaking cone 6, then lift the bearing sleeve 602 upwards. Finally, pull the push rod 5 forcefully to pull it out of the tube body 700. Take out the sampling tube 7, separate the installation sleeve 707 from the tube body 700, and finally seal and store the tube body 700. This method eliminates the need to transfer the obtained soil to other containers, thus saving sampling time.

[0054] Example 2

[0055] like Figure 10 As shown, this embodiment discloses a soil sampling device, which is largely the same as that in embodiment 1, except that a second scale 103 is provided on the outer wall of the cylinder 100. By providing the second scale 103, the user can easily understand the approximate depth of the cylinder 100 entering the soil, which is convenient.

[0056] Example 3

[0057] like Figure 11 and 12 As shown, this embodiment discloses a soil sampling device, which is largely the same as that in embodiment 1, except that it also includes a lifting mechanism 8.

[0058] The lifting mechanism 8 includes an electric telescopic rod 801 and a top block 802. The electric telescopic rod 801 is fixedly disposed on the side of the power mechanism 4.

[0059] The top block 802 includes a housing 803 and a base plate 804. The output end of the electric telescopic rod 801 is fixedly connected to the housing 803. The base plate 804 is fixedly connected to the housing 803. A rubber pad 807 is provided between the base plate 804 and the housing 803, and a receiving cavity 805 is formed between the base plate 804 and the housing 803. A vibration motor 806 is provided in the receiving cavity 805, and the vibration motor 806 is fixedly connected to the base plate 804. A cable outlet hole (not shown) is provided on the housing 803, and the power cord of the vibration motor 806 passes through the cable outlet hole to the outside. A foot pedal 808 is provided on one side of the housing 803, and the foot pedal 808 is fixedly connected to the housing 803.

[0060] Equipped with an electric telescopic rod, the collection tube can be lifted when it is removed. During the lifting process, a vibration motor can drive the entire device to vibrate, making it convenient for users to remove the collection tube from the soil.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A soil sampling device, comprising a sampling tube, characterized in that, The upper end of the collection tube is detachably connected to a transition sleeve, and the upper end of the transition sleeve is equipped with a rotating rod for transmitting power. A power mechanism is installed on the rotating rod, and the power mechanism is used to provide power to the rotating rod. The collection tube includes a tube body, and a guide channel is provided at the top of the inner end of the tube body. A soil-breaking cone for secondary soil breaking is installed inside the guide channel. A sampling tube for holding soil core is clamped at the upper end of the soil-breaking cone, and the sampling tube is located inside the transition sleeve. The transition sleeve is equipped with a push rod for pushing the soil-breaking cone, and the upper end of the push rod passes through the rotating rod; The soil-breaking cone includes a cone body, a sliding sleeve is fixedly connected to the outside of the cone body, and a bearing sleeve for supporting the sampling tube is slidably connected inside the sliding sleeve. The cone has two limiting plates inside, which are symmetrically arranged and rotatably connected to the cone. The outer wall of the push rod has two slots corresponding to the limiting plates. A return spring is provided between the limiting plate and the cone, with both ends of the return spring fixed to the limiting plate and the cone respectively. An expansion frame is installed between the limiting plate and the cone, and the expansion frame is fixedly connected to the bearing sleeve through a push rod.

2. The soil sampling device according to claim 1, characterized in that, The sampling tube includes a tube body, an installation sleeve connected to the upper end of the tube body, a plurality of soil-collecting shovels are installed on the outer wall of the installation sleeve, a movable block for applying pressure is installed above the soil-collecting shovels, and a plurality of fixed blocks for support are installed at the lower end of the soil-collecting shovels, with the soil-collecting shovels and fixed blocks slidably connected.

3. A soil sampling device according to claim 2, characterized in that, The shovel block is fixedly connected to an inclined block, and the movable block is fixedly connected to an adjusting rod, with the adjusting rod opposite to the inclined block.

4. A sampling method for the soil sampling device as described in claim 3, characterized in that, Includes the following steps: S1: After the cylinder enters the soil, the sampling tube is inserted into the bearing sleeve. Then, the push rod is pushed from top to bottom, so that the push rod drives the soil-breaking cone and the sampling tube to move together in the soil inside the cylinder, thereby forming a circular channel in the middle of the soil inside the cylinder. S2: When the cone reaches the specified depth, pull the push rod upward. As the push rod moves upward, the soil-breaking cone and the sampling tube will move upward. At this time, the movable block and the bearing sleeve will be blocked by the soil. When the movable block is blocked by the soil, it will move downward and push the shovel block outward through the adjusting rod. As the sampling tube moves upward, the shovel block will scrape the inner wall of the circular channel, causing the soil on the inner wall of the circular channel to fall off and fall into the tube. When the tube is full, no more soil will enter the tube. S3: Finally, after the cone enters the guide channel, put your hand into the transition sleeve to restrain the soil-breaking cone, then lift the bearing sleeve upwards, pull the push rod forcefully to pull the push rod out of the tube body, then take out the sampling tube, separate the installation sleeve from the tube body, and finally seal and store the tube body.

Images