Sampler for collecting volatile organic compounds in soil

Abstract

The utility model discloses a sampler for collecting volatile organic compounds in soil, which relates to the technical field of soil samplers and comprises a support and an adjusting mechanism, a rotating frame is arranged in the support, a moving frame is arranged in the rotating frame, and a volatile organic compound soil collecting drill rod is arranged at the bottom of the moving frame. According to the sampler for collecting the volatile organic compounds in the soil, a threaded rod a is rotated to be in threaded transmission with a connecting base, the connecting base is driven to move, when the connecting base moves, a volatile organic compound soil collecting drill rod at the bottom can be driven to move at a linear position, at the moment, sampling can be conducted on another point position, and in order to widen the sampling position, the sampling device is convenient to operate. By starting a motor b, the motor b can drive a small gear and a large gear to rotate so as to drive the large gear and a rotating frame fixed to the inner side of the large gear to rotate, and the rotating frame can rotate on the inner side of the support through a limiting ring a and a limiting ring b at the top and the bottom so as to drive the volatile organic compound soil collecting drill rod to conduct secondary adjustment.

Description

Technical Field

[0001] This utility model relates to the field of soil sampler technology, specifically a sampler for collecting volatile organic compounds in soil. Background Technology

[0002] Soil pollution refers to the phenomenon where pollutants generated by human activities enter the soil and accumulate to a certain level, causing soil quality deterioration and resulting in certain indicators of crops exceeding national standards. Currently, soil analysis often requires sampling, which requires the use of soil sampling equipment.

[0003] For example, CN211262788U discloses a soil sampling device for analyzing soil pollution. This device includes a sampling chamber, an adjusting screw sleeve, an operating port, an adjusting screw, and an adjusting plate. By rotating the adjusting screw sleeve through the operating port, the adjusting plate moves up and down along the inner wall of the sampling chamber under the threaded engagement of the adjusting screw. This achieves the quantitative adjustable function of the soil sampling device during sampling, thereby reducing the operational difficulty of using the soil sampling device.

[0004] When sampling soil, this patent requires fixing the sampling device first, then starting the drive mechanism to move the rotating volatile organic compound soil sampling drill rod downward to sample the soil. However, this sampler can only sample a fixed location once. When sampling the surrounding soil, the sampler needs to be moved as a whole and then fixed again before sampling at another location. This makes the operation quite cumbersome when sampling at multiple points. Utility Model Content

[0005] The purpose of this invention is to provide a sampler for collecting volatile organic compounds in soil, so as to solve the problem that existing soil samplers are difficult to perform multi-point sampling as mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sampler for collecting volatile organic compounds (VOCs) from soil, comprising: a support and an adjustment mechanism; a rotating frame is disposed inside the support; a movable frame is disposed inside the rotating frame; and a VOCs soil sampling drill rod is disposed at the bottom of the movable frame.

[0007] The bracket is equipped with an adjustment mechanism, which includes a threaded rod a that is movably connected to the inside of the movable frame via a bearing. A connecting seat is threaded to the outer side of the threaded rod a. A motor a is installed on the top of the connecting seat. A large gear is fixedly connected to the outer side of the bottom of the rotating frame. A small gear is meshed with the outer side of the large gear. A cleaning mechanism is provided on one side of the volatile organic compound soil sampling drill rod.

[0008] Specifically, the threaded rod a is used to perform threaded transmission with the connecting seat, thereby driving the connecting seat to move.

[0009] Preferably, a slide rod is slidably connected to one side of the connecting seat, both ends of the slide rod are fixedly connected to the moving frame, the output end of motor a is fixedly connected to the volatile organic compound soil sampling drill rod, and motor b is fixed to the top of the pinion.

[0010] Specifically, the slide bar is used to limit the movement of the connecting seat, allowing it to move stably, and the motor b is used to drive the small gear to mesh with the large gear, thereby driving the large gear and the rotating frame to rotate.

[0011] Preferably, one side of the motor b is fixedly connected to the bracket, the top of the rotating frame is equipped with a drive motor, the output end of the drive motor is fixedly connected to a synchronous pulley a, and a synchronous belt is sleeved on the outside of the synchronous pulley a.

[0012] Preferably, a synchronous pulley b is sleeved on one side of the synchronous belt, and a threaded rod b is fixedly connected to the bottom of both the synchronous pulley b and the synchronous pulley a. The bottom of the threaded rod b is movably connected to the rotating frame through a bearing, and a limit ring b is fixedly connected to the bottom of the rotating frame.

[0013] Specifically, the synchronous pulley a, the synchronous belt and the synchronous pulley b can drive the two sets of threaded rods b to rotate synchronously, thereby driving the moving frame to move up and down.

[0014] Preferably, the outer side of the limiting ring b is movably connected to the bracket, and the top of the rotating frame is fixedly connected to the limiting ring b, with the outer side of the limiting ring b being movably connected to the bracket.

[0015] Specifically, the limit ring b and the limit ring b are used to limit the movement of the rotating frame.

[0016] Preferably, the cleaning mechanism includes a fixed block that is fixedly connected to the bottom of the rotating frame, a connecting rod that is slidably connected inside the fixed block, and a cleaning brush that is movably connected to one end of the connecting rod via a rotating shaft.

[0017] Specifically, the cleaning brush is used to clean the outside of the soil sampling drill rod containing volatile organic compounds.

[0018] Preferably, a magnet is fixedly connected to one side of the cleaning brush, a protrusion is fixedly connected to the outer side of the connecting rod, and a moving groove matching the protrusion is opened inside the fixing block.

[0019] Specifically, the movable slot is used for the protrusion to move within the fixed block.

[0020] Preferably, one end of the movable groove is provided with a limiting groove, which is formed inside the fixed block.

[0021] Specifically, the limiting groove is used to engage with the protrusion, thereby restricting the movement of the connecting rod.

[0022] Compared with existing technologies, the advantages of this sampler for collecting volatile organic compounds in soil are:

[0023] 1. This sampler for collecting volatile organic compounds (VOCs) in soil requires adjusting the position of the VOCs soil sampling drill rod to improve sampling efficiency during multi-point sampling. This is achieved by rotating the threaded rod a, which drives the connecting seat to move. This movement of the connecting seat causes the bottom VOCs soil sampling drill rod to move in a straight line, allowing sampling at another point. To expand the sampling area, motor b is activated. Motor b drives the small and large gears to rotate, which in turn drives the large gear and its inner fixed rotating frame to rotate. The rotating frame rotates within the support frame via the top and bottom limiting rings a and b, causing a secondary adjustment of the VOCs soil sampling drill rod and thus expanding its drilling position. This operation facilitates multi-point sampling.

[0024] 2. In this sampler for collecting volatile organic compounds (VOCs) from soil, when cleaning the outer side of the soil sampling drill rod after sampling, the cleaning brush is moved by pushing the connecting rod. The magnet on one side of the cleaning brush will disengage from the fixed block, and the protrusion on the outer side of the connecting rod will first enter the moving groove of the fixed block. When the protrusion moves into the arc-shaped limiting groove, the connecting rod can be rotated to move the protrusion into the limiting groove and engage with it. At this time, the positions of the connecting rod and the cleaning brush will be fixed, and they can contact the outer side when the VOC soil sampling drill rod rotates upward, thereby cleaning the outer side of the VOC soil sampling drill rod. In this way, the above operation facilitates the cleaning of the VOC soil sampling drill rod. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0026] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0027] Figure 3 This is a three-dimensional schematic diagram of the mobile frame of this utility model;

[0028] Figure 4 This is a three-dimensional schematic diagram of the large gear of this utility model;

[0029] Figure 5 This is a three-dimensional cross-sectional view of the fixing block of this utility model.

[0030] In the diagram: 1. Support; 2. Rotating frame; 3. Moving frame; 4. Volatile organic matter soil sampling drill rod; 5. Adjustment mechanism; 501. Threaded rod a; 502. Connecting seat; 503. Slide rod; 504. Motor a; 505. Large gear; 506. Motor b; 507. Small gear; 6. Cleaning mechanism; 601. Fixing block; 602. Connecting rod; 603. Cleaning brush; 604. Magnet; 605. Protrusion; 606. Moving groove; 607. Limiting groove; 7. Drive motor; 8. Synchronous pulley a; 9. Synchronous belt; 10. Synchronous pulley b; 11. Limiting ring a; 12. Limiting ring b; 13. Threaded rod b. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4 This utility model provides a technical solution: a sampler for collecting volatile organic compounds in soil, comprising: a support 1 and an adjustment mechanism 5, wherein a rotating frame 2 is disposed inside the support 1, a movable frame 3 is disposed inside the rotating frame 2, and a volatile organic compound soil sampling drill rod 4 is disposed at the bottom of the movable frame 3.

[0033] The support frame 1 is internally equipped with an adjustment mechanism 5. The adjustment mechanism 5 includes a threaded rod a501 that is movably connected to the inside of the movable frame 3 via a bearing. A connecting seat 502 is threadedly connected to the outer side of the threaded rod a501. A motor a504 is mounted on the top of the connecting seat 502. A large gear 505 is fixedly connected to the outer side of the bottom of the rotating frame 2. A small gear 507 is meshed with the outer side of the large gear 505. A cleaning mechanism 6 is provided on one side of the volatile organic compound soil sampling drill rod 4. A sliding rod 503 is slidably connected to one side of the connecting seat 502. Both ends of the sliding rod 503 are fixedly connected to the movable frame 3. The output end of the motor a504 is fixedly connected to the volatile organic compound soil sampling drill rod 4. A motor b506 is fixedly mounted on the top of the small gear 507. One side of the motor b506 is fixedly connected to the support frame 1. A drive motor 7 is mounted on the top of the moving frame 2. A synchronous pulley a8 is fixedly connected to the output end of the drive motor 7. A synchronous belt 9 is sleeved on the outside of the synchronous pulley a8. A synchronous pulley b10 is sleeved on one side of the synchronous belt 9. A threaded rod b13 is fixedly connected to the bottom of both the synchronous pulley b10 and the synchronous pulley a8. The bottom of the threaded rod b13 is movably connected to the rotating frame 2 through a bearing. A limit ring b12 is fixedly connected to the bottom of the rotating frame 2. The outside of the limit ring b12 is movably connected to the bracket 1. The top of the rotating frame 2 is fixedly connected to the limit ring b12, and the outside of the limit ring b12 is movably connected to the bracket 1. The threaded rod a501 and the connecting seat 502 form a threaded transmission structure. A through groove matching the slide rod 503 is opened inside the connecting seat 502. The slide rod 503 and the connecting seat 502 form a sliding structure.

[0034] In practical implementation, when the sampler for collecting volatile organic compounds (VOCs) in soil is used for multi-point sampling, the position of the VOCs soil sampling drill rod 4 needs to be adjusted to improve sampling efficiency. This is achieved by rotating the threaded rod a501 and connecting seat 502 through threaded transmission, which moves the connecting seat 502. This movement of the connecting seat 502 causes the bottom VOCs soil sampling drill rod 4 to move in a straight line, allowing sampling at another point. To broaden the sampling area, the motor b506 is activated. The motor b506 drives the small gear 507 and the large gear 505 to rotate, thereby causing the large gear 505 and its inner fixed rotating frame 2 to rotate. The rotating frame 2 rotates inside the support 1 via the top and bottom limiting rings a11 and b12, thus causing a secondary adjustment of the VOCs soil sampling drill rod 4, further broadening the sampling area. After adjusting the drilling position of the volatile organic compound (VOC) soil sampling drill rod 4, the drive motor 7 can be started to drive the synchronous wheel a8 to rotate. The synchronous wheel a8 will drive the synchronous wheel b10 to rotate through the synchronous belt 9. The synchronous wheel b10 and the synchronous wheel a8 will drive the two sets of threaded rods b13 to rotate synchronously, and perform threaded transmission with the moving frame 3, thereby driving the moving frame 3 and the VOC soil sampling drill rod 4 to move downward for sampling. The VOC soil sampling drill rod 4 will collect soil containing VOCs, and when the VOC soil sampling drill rod 4 moves upward, it will bring out the soil containing VOCs, completing the soil sample collection. The collected VOC soil sample can be sent to the testing equipment for testing to determine the content of VOCs in the soil. In this way, the sampler can be easily sampled at multiple points to collect soil samples containing VOCs.

[0035] Please see Figure 1 , Figure 2 and Figure 5 The cleaning mechanism 6 includes a fixed block 601 fixedly connected to the bottom of the rotating frame 2. A connecting rod 602 is slidably connected inside the fixed block 601. One end of the connecting rod 602 is movably connected to a cleaning brush 603 via a rotating shaft. A magnet 604 is fixedly connected to one side of the cleaning brush 603. A protrusion 605 is fixedly connected to the outside of the connecting rod 602. A moving groove 606 matching the protrusion 605 is provided inside the fixed block 601. A limiting groove 607 is provided at one end of the moving groove 606, and the limiting groove 607 is provided inside the fixed block 601.

[0036] In practice, when cleaning the outside of the soil sampling drill rod 4 after sampling, the sampler for volatile organic compounds in the soil uses a connecting rod 602 to move the cleaning brush 603. The magnet 604 on one side of the cleaning brush 603 will disengage from the fixing block 601, and the protrusion 605 on the outside of the connecting rod 602 will first enter the moving groove 606 of the fixing block 601. When the protrusion 605 moves into the arc-shaped limiting groove 607, the connecting rod 602 can be rotated to move the protrusion 605 into the limiting groove 607 and engage with it. At this time, the positions of the connecting rod 602 and the cleaning brush 603 will be fixed, and they can contact the outside when the soil sampling drill rod 4 rotates upward, thereby cleaning the outside of the soil sampling drill rod 4. In this way, the soil sampling drill rod 4 can be cleaned easily.

[0037] In summary: When using the sampler for collecting volatile organic compounds (VOCs) from soil, the drive motor 7 is first started to rotate the synchronous pulley a8. The synchronous pulley a8 then drives the synchronous pulley b10 to rotate via the synchronous belt 9. The synchronous pulley b10 and the synchronous pulley a8 drive the two sets of threaded rods b13 to rotate synchronously, which in turn drives the moving frame 3 through the threaded transmission. This causes the moving frame 3 and the VOC soil sampling drill rod 4 to move downwards. The motor a504 can drive the VOC soil sampling drill rod 4 to rotate. After contacting the soil, it can be sampled. The contents not described in detail in this description are existing technologies known to those skilled in the art.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sampler for collecting volatile organic compounds in soil, comprising: The support (1) and adjustment mechanism (5) are provided, wherein a rotating frame (2) is provided inside the support (1), a movable frame (3) is provided inside the rotating frame (2), and a volatile organic compound soil sampling drill rod (4) is provided at the bottom of the movable frame (3). The support (1) is characterized in that... The bracket (1) is provided with an adjustment mechanism (5). The adjustment mechanism (5) includes a threaded rod a (501) that is movably connected to the inside of the movable frame (3) via a bearing. A connecting seat (502) is threaded to the outside of the threaded rod a (501). A motor a (504) is installed on the top of the connecting seat (502). A large gear (505) is fixedly connected to the outside of the bottom of the rotating frame (2). A small gear (507) is meshed to the outside of the large gear (505). A cleaning mechanism (6) is provided on one side of the volatile organic compound soil sampling drill rod (4).

2. A sampler for collecting volatile organic compounds in soil according to claim 1, characterized in that: A slide rod (503) is slidably connected to one side of the connecting seat (502). The two ends of the slide rod (503) are fixedly connected to the moving frame (3). The output end of the motor a (504) is fixedly connected to the volatile organic compound soil sampling drill rod (4). The top of the pinion (507) is fixed with a motor b (506).

3. A sampler for collecting volatile organic compounds in soil according to claim 2, characterized in that: One side of the motor b (506) is fixedly connected to the bracket (1), and a drive motor (7) is installed on the top of the rotating frame (2). The output end of the drive motor (7) is fixedly connected to a synchronous pulley a (8), and a synchronous belt (9) is sleeved on the outside of the synchronous pulley a (8).

4. A sampler for collecting volatile organic compounds in soil according to claim 3, characterized in that: A synchronous pulley b (10) is sleeved on one side of the synchronous belt (9). The bottom of the synchronous pulley b (10) and the synchronous pulley a (8) are both fixedly connected to a threaded rod b (13). The bottom of the threaded rod b (13) is movably connected to the rotating frame (2) through a bearing. The bottom of the rotating frame (2) is fixedly connected to a limit ring b (12).

5. A sampler for collecting volatile organic compounds in soil according to claim 4, characterized in that: The outer side of the limiting ring b (12) is movably connected to the bracket (1), the top of the rotating frame (2) is fixedly connected to the limiting ring b (12), and the outer side of the limiting ring b (12) is movably connected to the bracket (1). The threaded rod a (501) and the connecting seat (502) form a threaded transmission structure. The connecting seat (502) has a through groove that matches the slide rod (503) inside. The slide rod (503) and the connecting seat (502) form a sliding structure.

6. A sampler for collecting volatile organic compounds in soil according to claim 1, characterized in that: The cleaning mechanism (6) includes a fixed block (601) fixedly connected to the bottom of the rotating frame (2), and a connecting rod (602) is slidably connected inside the fixed block (601). One end of the connecting rod (602) is movably connected to a cleaning brush (603) via a rotating shaft.

7. A sampler for collecting volatile organic compounds in soil according to claim 6, characterized in that: A magnet (604) is fixedly connected to one side of the cleaning brush (603), a protrusion (605) is fixedly connected to the outside of the connecting rod (602), and a moving groove (606) matching the protrusion (605) is opened inside the fixing block (601).

8. A sampler for collecting volatile organic compounds in soil according to claim 7, characterized in that: One end of the movable groove (606) is provided with a limiting groove (607), which is opened inside the fixed block (601).

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