A soil heavy metal pollution detection device

Abstract

The application provides a soil heavy metal pollution detection device, and relates to the technical field of soil detection. The device comprises a support assembly, a detector body, a filter assembly, a driving assembly, a center assembly, a sample assembly and a transmission assembly. The support assembly comprises a collection shell, a support shell is coaxially fixedly connected in the collection shell, an upper portion of the support shell is fixedly connected with a track, and a support is fixedly connected at the center of the collection shell. The detector body is arranged on the support and is used for detecting the heavy metal content in soil. The filter assembly is arranged on the support and is used for filtering impurities in soil and uniformly releasing soil samples. The driving assembly is arranged in the support shell and is used for providing self-rotation driving power. The filter assembly can filter the added soil to filter out impurities, thereby improving the accuracy of heavy metal detection.

Description

Technical Field

[0001] This invention relates to the field of soil testing technology, specifically to a soil heavy metal pollution detection device. Background Technology

[0002] X-ray fluorescence (XRF) soil heavy metal analyzers are commonly used for soil heavy metal detection. These analyzers can simultaneously detect multiple heavy metal elements in soil, such as cadmium, lead, mercury, chromium, zinc, copper, and nickel. During operation, X-rays irradiate the soil sample, exciting the inner-shell electrons of the heavy metal atoms and creating vacancies. Outer-shell electrons quickly fill these vacancies, releasing energy as X-rays. The XRF analyzer receives these characteristic X-rays through a detector, processes them through conversion, amplification, and analog-to-digital conversion, and then transmits them to the instrument's analysis system. The analysis system compares the energy and intensity of the characteristic X-rays with a pre-established standard spectrum to determine the types of heavy metal elements present in the soil. By calculating the intensity of the characteristic X-rays, the content of each heavy metal element is accurately measured.

[0003] In related technologies, such as a portable heavy metal pollution detection device with announcement number CN211505515U, a base is provided. The top of the base is fixedly connected to a first support frame. A stirring tank is fixedly connected inside the first support frame. A support plate is fixedly connected to the top of the stirring tank. A first motor is fixedly connected to the top of the support plate. A rotating shaft is fixedly connected to the bottom of the first motor and passes through the interior of the support plate.

[0004] However, the metal wire mesh in the above-mentioned device can only filter soil in a simple way, and cannot be used for clumped soil, which increases the loss rate of soil samples. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a soil heavy metal pollution detection device that solves the problems of unusable clumped soil and high soil sample loss rate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a soil heavy metal pollution detection device, comprising:

[0007] A support assembly includes a collection shell, a support shell is coaxially fixedly connected inside the collection shell, a track is fixedly connected to the upper part of the support shell, and a bracket is fixedly connected to the center of the collection shell.

[0008] The detector body is mounted on a support and is used to detect the heavy metal content in the soil.

[0009] A filter assembly, mounted on a support, is used to filter impurities in the soil and uniformly release soil samples. The filter assembly includes a filter housing, an extension plate fixedly connected to the upper part of the filter housing, a rotating frame rotatably connected to the extension plate, a rolling roller and a cam rotatably connected to the lower part of the rotating frame, a support ring fixedly connected to the inner wall of the filter housing, a support spring fixedly connected to the support ring, a lifting ring fixedly connected to the upper part of the support spring, a filter screen fixedly connected inside the lifting ring, the filter screen contacting the rolling roller, an extension shaft rotatably connected to the lower part of the filter housing, a conveying roller fixedly connected to one end of the extension shaft extending into the filter housing, and a contact wheel fixedly connected to the other end of the extension shaft extending out of the filter housing, the conveying roller being adapted to the lower inner wall of the filter housing, and having evenly distributed cavities around its circumference; the filter assembly is set at a 120-degree angle to the detector body.

[0010] A drive assembly, which is disposed within a support housing, is used to provide self-rotation driving power;

[0011] A central component is disposed on a drive component; the central component includes a central plate, on which rotating lugs are uniformly fixedly connected around the circumference;

[0012] A sample assembly, rotatably mounted on a central assembly, is used to store soil samples;

[0013] A transmission component, located on top of the drive component, transmits rotational power to the filter component. The filter component filters the added soil, removing impurities and improving the accuracy of heavy metal detection. It also breaks up clumps of soil, increasing soil utilization. Simultaneously, it dislodges impurities from the mesh, ensuring the filter mesh remains usable. The drive component, sample component, central component, and track work together to automatically release soil samples, enabling continuous testing of multiple samples and improving detection efficiency.

[0014] Preferably, the track includes an arc-shaped track and a sunken track, and a connecting track is fixedly connected between the arc-shaped track and the sunken track, with protrusions evenly distributed on the connecting track.

[0015] Preferably, the bracket includes a support rod fixedly installed at the center of the support housing, and the upper part of the support rod is fixedly connected to mounting bracket one and mounting bracket two.

[0016] Preferably, the filter housing is fixedly connected to the mounting bracket.

[0017] Preferably, the drive assembly includes a motor, the output end of which is fixedly connected to a drive gear, a sleeve is provided on the outer side of the drive gear, and a driven gear is fixedly connected to the lower end of the sleeve, the driven gear meshing with the drive gear; the motor is fixedly installed in the support housing, and the sleeve is rotatably installed on the support rod.

[0018] Preferably, the center plate is fixedly installed on the sleeve.

[0019] Preferably, the sample assembly includes a sample plate with a sample groove. A baffle plate is rotatably connected to the lower part of the sample groove, and a counterweight is fixedly connected to the lower end of the baffle plate. An upper suction block and a lower suction block are fixedly connected to the inner wall of the sample groove. The upper suction block and the upper part of the baffle plate are mutually attracted, and the lower suction block and the counterweight are mutually attracted. The sample plate is rotatably connected to the rotating ear.

[0020] Preferably, the transmission assembly includes a first pulley and a second pulley, with a belt between the first pulley and the second pulley; the first pulley is fixedly connected to the sleeve, and the second pulley is fixedly connected to the rotation shaft of the rotating frame.

[0021] This invention provides a soil heavy metal pollution detection device. It has the following beneficial effects:

[0022] 1. This invention, through its filter components, can filter the added soil, removing impurities and thus improving the accuracy of heavy metal detection. It can also crush clumps of soil, increasing soil utilization. During filtration, it can dislodge impurities from the mesh, ensuring that the filter mesh is always usable.

[0023] 2. The present invention, through the setting of a driving component, a sample component, a central component, and a track, and through the cooperation of the driving component, the sample component, the central component, and the track, can realize the automatic release of soil samples, continuously detect multiple samples, and improve detection efficiency. Attached Figure Description

[0024] Figure 1 This is a perspective view of the entire invention;

[0025] Figure 2 This is a top view of the entire invention;

[0026] Figure 3 This is a perspective view of the support component of the present invention;

[0027] Figure 4 This is a cross-sectional perspective view of the filter assembly of the present invention;

[0028] Figure 5 This is a perspective view of the central component of the present invention;

[0029] Figure 6 This is a perspective view of the sample components of the present invention;

[0030] Figure 7 for Figure 6 Enlarged view of point A in the image;

[0031] Figure 8 This is a perspective view of the drive assembly and transmission assembly of the present invention.

[0032] The components include: 1. Detector body; 2. Support assembly; 3. Filter assembly; 4. Central assembly; 5. Sample assembly; 6. Drive assembly; 7. Transmission assembly; 201. Collection shell; 202. Support shell; 203. Support rod; 204. Mounting bracket one; 205. Mounting bracket two; 206. Arc track; 207. Connecting track; 208. Sinking track; 209. Protruding strip; 301. Filter shell; 302. Support ring; 303. Support spring; 304. Lifting ring; 305. Filter screen; 3 06. Extension plate; 307. Rotating frame; 308. Compactor roller; 309. Cam; 310. Conveyor roller; 311. Extension shaft; 312. Contact wheel; 401. Center plate; 402. Rotating ear; 501. Sample plate; 502. Sample slot; 503. Baffle plate; 504. Upper suction block; 505. Lower suction block; 506. Counterweight bar; 601. Motor; 602. Drive gear; 603. Driven gear; 604. Sleeve; 701. Pulley one; 702. Belt; 703. Pulley two. Detailed Implementation

[0033] 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.

[0034] like Figures 1-8 As shown, an embodiment of the present invention provides a soil heavy metal pollution detection device, comprising:

[0035] Support component 2 includes a collection shell 201, a support shell 202 is coaxially fixedly connected inside the collection shell 201, a track is fixedly connected to the upper part of the support shell 202, and a bracket is fixedly connected to the center of the collection shell 201.

[0036] refer to Figure 1 , Figure 2 , Figure 3The collection shell 201 has an annular edge, which can prevent soil from falling and ensure the cleanliness and hygiene of the testing environment, and also facilitates the cleaning of soil after testing; the support shell 202 is used to provide support and provide the necessary height difference for the installation of the track; the bracket is used to install other components.

[0037] The track includes an arc track 206 and a sunken track 208. A connecting track 207 is fixedly connected between the arc track 206 and the sunken track 208. The connecting track 207 is provided with protrusions 209 evenly.

[0038] refer to Figure 3 The curved track 206 is used to provide support at higher points, providing the necessary height conditions for testing; the sunken track 208 is used to provide support at lower points, providing the necessary conditions for dumping soil; the ridge 209 is used to provide obstruction, and the ridge 209 provides intermittent obstruction to the sample plate 501, which can cause the sample plate 501 to vibrate. Using this vibration force, the soil can fall easily and the soil sample discharge rate can be improved.

[0039] The bracket includes a support rod 203 fixedly installed at the center of the support housing 202, and a mounting bracket 204 and a mounting bracket 205 are fixedly connected to the upper part of the support rod 203.

[0040] refer to Figure 3 Mounting bracket 1 204 and mounting bracket 2 205 are used to install the filter assembly 3 and the detector body 1, respectively. The installation method can be conventional bolt connection or snap-fit ​​connection.

[0041] Detector body 1; Detector body 1 is mounted on a support and is used to detect the heavy metal content in the soil;

[0042] refer to Figure 1 , Figure 2 The detector body 1 is an X-ray fluorescence soil heavy metal analyzer, which works on the existing technology of using X-rays to detect the heavy metal content in soil samples.

[0043] Filter assembly 3, mounted on a support, is used to filter impurities in the soil and uniformly release soil samples. Filter assembly 3 includes a filter housing 301, with an extension plate 306 fixedly connected to the upper part of the filter housing 301. A rotating frame 307 is rotatably connected to the extension plate 306. A rolling roller 308 and a cam 309 are rotatably connected to the lower part of the rotating frame 307. A support ring 302 is fixedly connected to the inner wall of the filter housing 301. A support spring 303 is fixedly connected to the support ring 302. A lifting ring 304 is fixedly connected to the upper part of the support spring 303. A fixed internal connection is... A filter screen 305 is connected to the filter housing 301, and the filter screen 305 is in contact with the rolling roller 308. An extension shaft 311 is rotatably connected to the lower part of the filter housing 301. One end of the extension shaft 311 that extends into the filter housing 301 is fixedly connected to a conveying roller 310, and the other end of the extension shaft 311 that extends out of the filter housing 301 is fixedly connected to a contact wheel 312. The conveying roller 310 is adapted to the lower inner wall of the filter housing 301, and the conveying roller 310 has uniformly arranged receiving cavities around its circumference. The filter housing 301 is fixedly connected to the mounting bracket 204. The angle between the filter assembly 3 and the detector body 1 is set at 120 degrees.

[0044] refer to Figure 4 During filtration, the power transmitted through the transmission component 7 drives the rotating frame 307 to rotate, which in turn drives the compaction roller 308 to rotate. The compaction roller 308 rotates on its own axis while revolving around the sun, which crushes the soil. The cam 309 rotates synchronously, and by changing the shape of the cam 309, it periodically pushes the lifting ring 304 downward. The lifting ring 304 moves downward against the elastic force of the support spring 303, and then the lifting ring 304 returns to its original position, thereby causing the filter screen 305 to vibrate up and down. The vibration force can improve the efficiency of soil filtration. The filtered soil falls into the receiving cavity of the conveying roller 310. Due to the relative displacement between the contact wheel 312 and the sample plate 501, the contact wheel rotates, which drives the extension shaft 311 to rotate. The extension shaft 311 drives the conveying roller 310 to rotate, rotating the soil in the upper receiving cavity to the lower part, and then releasing it into the sample trough 502, thus achieving the function of uniformly releasing the soil.

[0045] During the crushing function, since the crushing roller 308 and the filter screen 305 are in contact with each other, when the filter screen 305 and the crushing roller 308 squeeze each other, the crushing roller 308 and the filter screen 305 cooperate to crush the clumps of soil and maximize the utilization of the soil sample.

[0046] Furthermore, the contact wheel 312 will only rotate when the sample plate 501 is directly below the contact wheel 312, thus enabling the intermittent release of soil.

[0047] When the filter screen 305 vibrates up and down, it will collide with the crushing roller 308. At the moment of collision, the impurities move upward due to inertia. The filter screen 305 is stopped by the crushing roller 308. By utilizing the speed difference between the two, the impurities stuck in the mesh of the filter screen 305 can be knocked out from the bottom to the top, thereby preventing the filter screen 305 from being blocked by impurities and ensuring that the mesh of the filter screen 305 can always be put into use, avoiding later maintenance work.

[0048] To prevent the contact wheel 312 from slipping, anti-slip textures can be added to the circumferential surface of the contact wheel 312 and the upper surface of the sample plate 501.

[0049] The drive assembly 6 is located inside the support housing 202 and is used to provide rotational driving power. The drive assembly 6 includes a motor 601, the output end of which is fixedly connected to a drive gear 602. A sleeve 604 is provided on the outside of the drive gear 602, and a driven gear 603 is fixedly connected to the lower end of the sleeve 604. The driven gear 603 meshes with the drive gear 602. The motor 601 is fixedly installed inside the support housing 202, and the sleeve 604 is rotatably installed on the support rod 203.

[0050] refer to Figure 8 , Figure 1 When the drive is in operation, the motor 601 works under the power supply and controller, driving the drive gear 602 to rotate. The drive gear 602 drives the driven gear 603 to rotate, and the driven gear 603 drives the sleeve 604 to rotate, thereby realizing the function of driving the central component 4 to rotate. Since heavy metal detection needs to be continuous for a certain period of time, it can be used with a proximity switch and a timing program to realize automatic start and stop, or a simple start and stop switch can be realized. You can choose according to actual needs.

[0051] Central component 4 is mounted on drive component 6; central component 4 includes central plate 401, on which rotating ears 402 are uniformly fixedly connected around the circumference; central plate 401 is fixedly mounted on sleeve 604.

[0052] refer to Figure 1 , Figure 5 , Figure 7 The central component 4 has three sets of rotating lugs 402 for installation and use.

[0053] Sample assembly 5 is rotatably mounted on central assembly 4 and is used to store soil samples. Sample assembly 5 includes sample plate 501, sample groove 502 on sample plate 501, baffle plate 503 rotatably connected to the lower part of sample groove 502, counterweight bar 506 fixedly connected to the lower end of baffle plate 503, upper suction block 504 and lower suction block 505 fixedly connected to the inner wall of sample groove 502, upper suction block 504 adsorbs with the upper part of baffle plate 503, and lower suction block 505 adsorbs with counterweight bar 506; sample plate 501 is rotatably connected to rotating ear 402.

[0054] refer to Figure 1 , Figure 3 , Figure 6 The sample plate 501 can rotate relative to the rotating ear 402. The sample trough 502 is used to hold soil. When the sample plate 501 rotates from the arc track 206 to the sinking track 208, the sample plate 501 rotates under the action of gravity. The sample plate 501 changes from a horizontal state to a downward tilting state. The blocking plate 503 changes from a vertical state to an inclined state. The lower suction block 505 attracts the counterweight 506. A channel for soil to fall out appears at the bottom of the blocking plate 503. The soil will fall out from the channel under the action of gravity. When the sample plate 501 returns to a horizontal state, the blocking plate 503 will return to a vertical state. The upper suction block 504 attracts the upper part of the blocking plate 503 to ensure the stability of the blocking plate 503. The vertical blocking plate 503 can prevent soil from falling out, making it convenient for soil to be added into the sample trough 502.

[0055] Meanwhile, when the sample plate 501 passes the position of the protrusion 209, the protrusion 209 will provide intermittent obstruction, thereby causing the sample plate 501 to vibrate. The vibration force can be used to completely dump the soil in the sample trough 502, thereby improving the soil drainage rate.

[0056] The transmission assembly 7 is located on top of the drive assembly 6 and is used to transmit rotational power to the filter assembly 3. The transmission assembly 7 includes a first pulley 701 and a second pulley 703, and a belt 702 is provided between the first pulley 701 and the second pulley 703. The first pulley 701 is fixedly connected to the sleeve 604, and the second pulley 703 is fixedly connected to the rotation shaft of the rotation frame 307.

[0057] refer to Figure 1 , Figure 8 The diameter of pulley 701 is larger than that of pulley 703. This transmission ratio can increase the rotational speed of pulley 703, thereby driving the rotational speed of the self-rotating frame 307 and improving the compaction efficiency of the compaction roller 308.

[0058] Working principle: When the sampled soil is added into the filter screen 305, the motor 601 drives the drive gear 602 to rotate, the drive gear 602 drives the driven gear 603 to rotate, the driven gear 603 drives the sleeve 604 to rotate, the sleeve 604 drives the pulley 1 701 to rotate, and the pulley 1 701 drives the pulley 2 703 to rotate through the belt 702, thereby driving the rotation shaft of the rotation frame 307 to rotate.

[0059] The rotating frame 307 drives the compaction roller 308 to rotate. The compaction roller 308 rotates on its own axis while revolving around the revolution, which can crush the soil. The cam 309 rotates synchronously. By changing the shape of the cam 309, it periodically pushes the lifting ring 304 downward. The lifting ring 304 moves downward against the elastic force of the support spring 303. Then the lifting ring 304 returns to its original position, thereby driving the filter screen 305 to vibrate up and down. The vibration force can improve the efficiency of soil filtration. The filtered soil falls into the receiving cavity of the conveying roller 310. Due to the relative displacement between the contact wheel 312 and the sample plate 501, the contact wheel rotates, thereby driving the extension shaft 311 to rotate. The extension shaft 311 drives the conveying roller 310 to rotate, rotating the soil in the upper receiving cavity to the lower part, and then releasing it into the sample trough 502.

[0060] The rotation of sleeve 604 will cause the center plate 401 to rotate, which in turn will cause the sample plate 501 to rotate. When the sample plate 501 rotates to the detection port at the lower end of the detector body 1, the rotation stops. Then the detector body 1 is operated to detect the heavy metal content in the soil. After the detection is completed, the rotation continues.

[0061] When the sample plate 501 rotates from the arc track 206 to the sinking track 208, the sample plate 501 rotates under the action of gravity, and the sample plate 501 changes from a horizontal state to a downward tilting state. The blocking plate 503 changes from a vertical state to an inclined state, and the lower suction block 505 adsorbs the counterweight 506. A channel for soil dumping appears at the bottom of the blocking plate 503. The soil will fall from the channel under the action of gravity. When the sample plate 501 passes the position of the protrusion 209, the protrusion 209 will provide intermittent obstruction, thereby driving the sample plate 501 to vibrate. The vibration force can make the soil in the sample trough 502 completely dumped out, improving the soil drainage rate.

[0062] Then the sample plate 501 rotates back to the bottom of the filter component 3, and the above-mentioned soil addition is repeated to achieve continuous detection. Different soil samples can also be detected at the same time.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil heavy metal pollution detection device, characterized in that, include: The support assembly (2) includes a collection shell (201), a support shell (202) is coaxially fixedly connected inside the collection shell (201), a track is fixedly connected to the upper part of the support shell (202), and a bracket is fixedly connected to the center of the collection shell (201); the track includes an arc track (206) and a sinking track (208), a connecting track (207) is fixedly connected between the arc track (206) and the sinking track (208), and the connecting track (207) is uniformly provided with protrusions (209); The detector body (1) is mounted on a support and is used to detect the heavy metal content in the soil. A filter assembly (3) is mounted on a support and is used to filter impurities in the soil and uniformly release soil samples. The filter assembly (3) includes a filter housing (301), an extension plate (306) is fixedly connected to the upper part of the filter housing (301), a self-rotating frame (307) is rotatably connected to the extension plate (306), a rolling roller (308) and a cam (309) are rotatably connected to the lower part of the self-rotating frame (307), a support ring (302) is fixedly connected to the inner wall of the filter housing (301), a support spring (303) is fixedly connected to the support ring (302), and a lifting ring (304) is fixedly connected to the upper part of the support spring (303). A filter screen (305) is fixedly connected inside the lifting ring (304). The filter screen (305) is in contact with the rolling roller (308). An extension shaft (311) is rotatably connected to the lower part of the filter housing (301). A conveying roller (310) is fixedly connected to one end of the extension shaft (311) that extends into the filter housing (301). A contact wheel (312) is fixedly connected to one end of the extension shaft (311) that extends out of the filter housing (301). The conveying roller (310) is adapted to the lower inner wall of the filter housing (301). A receiving cavity is uniformly provided on the circumference of the conveying roller (310). The angle between the filter assembly (3) and the detector body (1) is set at 120 degrees. A drive assembly (6) is disposed within a support housing (202) and is used to provide self-rotation drive power; A central component (4) is disposed on a drive component (6); the central component (4) includes a central plate (401), on which rotating ears (402) are uniformly fixedly connected around the circumference. Sample component (5), which is rotatably mounted on the central component (4) for storing soil samples; The transmission assembly (7) is located on top of the drive assembly (6) and is used to transmit rotational power to the filter assembly (3).

2. The soil heavy metal pollution detection device according to claim 1, characterized in that: The bracket includes a support rod (203) fixedly installed at the center of the support housing (202), and the upper part of the support rod (203) is fixedly connected to mounting bracket one (204) and mounting bracket two (205).

3. The soil heavy metal pollution detection device according to claim 2, characterized in that: The filter housing (301) is fixedly connected to the mounting bracket (204).

4. The soil heavy metal pollution detection device according to claim 3, characterized in that: The drive assembly (6) includes a motor (601), the output end of which is fixedly connected to a drive gear (602), a sleeve (604) is provided on the outside of the drive gear (602), and a driven gear (603) is fixedly connected to the lower end of the sleeve (604). The driven gear (603) meshes with the drive gear (602). The motor (601) is fixedly installed in the support housing (202), and the sleeve (604) is rotatably installed on the support rod (203).

5. The soil heavy metal pollution detection device according to claim 4, characterized in that: The center plate (401) is fixedly installed on the sleeve (604).

6. The soil heavy metal pollution detection device according to claim 5, characterized in that: The sample assembly (5) includes a sample plate (501), a sample groove (502) is provided on the sample plate (501), a baffle plate (503) is rotatably connected to the lower part of the sample groove (502), a counterweight (506) is fixedly connected to the lower end of the baffle plate (503), an upper suction block (504) and a lower suction block (505) are fixedly connected to the inner wall of the sample groove (502), the upper suction block (504) and the upper part of the baffle plate (503) are mutually attracted, and the lower suction block (505) and the counterweight (506) are mutually attracted; the sample plate (501) is rotatably connected to the rotating ear (402).

7. A soil heavy metal pollution detection device according to claim 6, characterized in that: The transmission assembly (7) includes a pulley one (701) and a pulley two (703), with a belt (702) between the pulley one (701) and the pulley two (703); the pulley one (701) is fixedly connected to the sleeve (604), and the pulley two (703) is fixedly connected to the rotation shaft of the rotating frame (307).

Images