Sampling device for detecting phosphorus component in chemical fertilizer

Abstract

The invention relates to the technical field of chemical fertilizer detection, in particular to a sampling device for chemical fertilizer phosphorus component detection, which comprises a chemical fertilizer bag overturning module for overturning a chemical fertilizer bag; the bottom of the chemical fertilizer bag overturning module is fixedly connected with a base plate placed on the ground, and the two sides of the interior of the base plate are each provided with a chemical fertilizer bag multi-point synchronous sampling module which is symmetrically arranged and used for puncturing and sampling a chemical fertilizer bag; the other side of each chemical fertilizer bag multipoint synchronous sampling module is provided with a chemical fertilizer sample dispersing and collecting module which is lower than the ground level and is used for collecting chemical fertilizer samples; chemical fertilizer bags are conveyed into the rotating inner cylinder through the feeding and discharging beating integrated module and located on the inner side of an inner net cylinder in the rotating inner cylinder, the overturning motor drives the gear disc to rotate, the gear disc drives the gear ring to rotate, and then the rotating inner cylinder rotates and is used for continuously overturning the chemical fertilizer bags on the inner side. And through cooperation with the feeding and discharging beating integrated module, uniform mixing of chemical fertilizer in the chemical fertilizer bag can be ensured, and product sampling quality is ensured.

Description

Technical Field

[0001] This invention relates to the field of fertilizer testing technology, specifically a sampling device for detecting phosphorus content in fertilizers. Background Technology

[0002] After production, fertilizers often need to be stored centrally, and sampling tests (such as phosphorus content testing) are required before use. Current sampling procedures typically involve manual operation: workers randomly select several fertilizer bags weighing approximately 50kg and lay them flat on the ground. They then manually turn and shake the bags repeatedly to disperse any clumps of fertilizer inside, and finally break up the clumps by foot to ensure representativeness of the subsequent samples. However, this method has significant drawbacks: firstly, repeatedly turning 50kg bags of fertilizer manually is extremely labor-intensive, and uneven shaking results in poor fertilizer mixing; secondly, the clump-breaking method is simplistic, lacking a dedicated crushing mechanism, and the foot-step crushing method is not targeted or effective enough to completely break up clumps, potentially leading to samples that do not accurately reflect the overall quality of the fertilizer and thus affecting the accuracy of the test results. Therefore, this paper proposes a sampling device for detecting phosphorus content in fertilizers to address these issues. Summary of the Invention

[0003] The purpose of this invention is to provide a sampling device for detecting phosphorus content in fertilizers, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: As an optional embodiment of the sampling device for detecting phosphorus components in fertilizers according to the present invention, the sampling device for detecting phosphorus components in fertilizers includes a fertilizer bag flipping module that can be used to flip fertilizer bags. The bottom of the fertilizer bag flipping module is fixedly connected to a chassis placed on the ground. On both sides of the chassis, there are symmetrically arranged fertilizer bag multi-point synchronous sampling modules for puncturing and sampling fertilizer bags. On the other side of the fertilizer bag multi-point synchronous sampling modules, there are fertilizer sample dispersion collection modules set below the ground plane for collecting fertilizer samples. The fertilizer bag flipping module is equipped with an integrated loading and unloading hammering module for automatic loading and unloading of fertilizer bags. The bottom of the integrated loading and unloading hammering module is fixedly connected to one side of the chassis. A loose material collection frame is also installed on the side of the chassis to collect loose fertilizer that falls into the fertilizer bag flipping module. The fertilizer bag flipping module includes a fixed outer cylinder that is fixedly connected to the chassis. A flipping motor that is fixedly connected to the chassis is provided on one side of the fixed outer cylinder. A gear disk is fixedly connected to the end of the main shaft of the flipping motor. A gear ring is meshed on one side of the gear disk. A rotating inner cylinder is fixedly connected to the inner side of the gear ring. A support ring is fixedly connected to the center of the inner side of the rotating inner cylinder, and an inner mesh cylinder with a mesh pattern is fixedly connected to the inner side of the support ring. Reinforcing rings are fixedly connected to the inner mesh cylinder on both sides of the support ring. Both the inner cylinder and the inner mesh cylinder have an outward convex shape on their inner sides, and the outer inclined part of the inner cylinder has a discharge hole for the scattered fertilizer to fall down.

[0005] As an optional embodiment of the sampling device for detecting phosphorus components in fertilizers according to the present invention, wherein: concave rings are provided on both sides of the rotating inner cylinder, and multiple limiting rings are provided in the concave rings; guide rollers are rotatably connected to the inner side of each limiting ring, and the two ends of the guide rollers are fixedly connected to the fixed outer cylinder through fixed seats.

[0006] As an optional embodiment of the sampling device for detecting phosphorus components in fertilizers according to the present invention, a central groove is provided at the bottom center of the fixed outer cylinder to facilitate contact between the gear disk and the gear ring, and a feeding groove is provided on both sides of the central groove at the bottom of the fixed outer cylinder.

[0007] After production, fertilizers often need to be stored centrally, and sampling tests (such as phosphorus content testing) are required before use. Current sampling procedures typically involve manual operation: workers randomly select several fertilizer bags weighing approximately 50kg and lay them flat on the ground. They then manually turn and shake the bags repeatedly to disperse any clumps of fertilizer inside, and finally break up the clumps by foot to ensure representativeness of the subsequent samples. However, this method has significant drawbacks: firstly, repeatedly turning 50kg bags of fertilizer manually is extremely labor-intensive, and uneven shaking results in poor fertilizer mixing; secondly, the clump-breaking method is simplistic, lacking a dedicated crushing mechanism, and the foot-step crushing method is not targeted or effective enough to completely break up clumps, potentially leading to samples that do not accurately reflect the overall quality of the fertilizer, thus affecting the accuracy of the test results.

[0008] The fixed outer cylinder is equipped with a continuously rotating inner cylinder. The fertilizer bags are conveyed to the rotating inner cylinder by the loading and unloading hammering integrated module and are located inside the inner mesh cylinder. The rotating motor drives the gear disk to rotate, and the gear disk drives the gear ring to rotate, which in turn makes the rotating inner cylinder rotate. This is used to continuously turn the fertilizer bags inside the cylinder. In addition, the loading and unloading hammering integrated module can ensure that the fertilizer inside the fertilizer bag is evenly mixed and ensure the quality of product sampling. Since both the rotating inner cylinder and the inner mesh cylinder are convex outward from the center of the inner side, it is convenient to limit the fertilizer bag. At the same time, when rotating, it can ensure that the fertilizer inside the fertilizer bag moves towards the center, which makes it convenient for the reciprocating mechanism to drive the hammer rod and the fixed shaft to hammer the center of the fertilizer bag, ensuring the quality of the caking treatment. After the fertilizer sampling is completed, there may be instances where fertilizer falls out of the fertilizer bag. In this case, the inner mesh cylinder can ensure that the scattered fertilizer falls smoothly into the rotating inner cylinder. As the rotating inner cylinder rotates, the fertilizer can fall through the discharge hole on the outside of the rotating inner cylinder and fall into the bulk collection frame through the discharge chute below the fixed outer cylinder, thus achieving centralized collection of fertilizer and avoiding waste.

[0009] As an optional solution of the sampling device for detecting phosphorus components in fertilizers according to the present invention, the fertilizer bag multi-point synchronous sampling module includes multiple retractable first horizontal moving mechanisms set inside the chassis. One end of each first horizontal moving mechanism is fixedly connected to an angle adjustment mechanism. The top of each angle adjustment mechanism is rotatably connected to a sliding ring. The inner side of each sliding ring is slidably connected to a sampling cylinder for puncturing and sampling the fertilizer bag. A first support plate is fixedly connected to one side of the angle adjustment mechanism. A vertically arranged first electric push rod is fixedly connected above the first support plate. A support frame is fixedly connected to the free end of the first electric push rod. Guide sliders are fixedly connected to the inner side of the support frame. The guide sliders are set in the bottom groove of the sampling cylinder and are slidably connected to the sampling cylinder.

[0010] As an optional embodiment of the sampling device for detecting phosphorus components in fertilizers according to the present invention, a fertilizer collection mechanism is also fixedly connected to the side of the angle adjustment mechanism away from the first support plate. The fertilizer collection mechanism includes a second support plate fixedly connected to the angle adjustment mechanism. A guide cylinder penetrating the second support plate is installed above the second support plate. The bottom of the guide cylinder is connected to a conveying pipe, and the top of the guide cylinder is fixedly connected to a protective cover.

[0011] As an optional embodiment of the sampling device for detecting phosphorus components in fertilizers as described in this invention, a heating mechanism is also installed above the second support plate. The output end of the heating mechanism is connected to an air pipe, and the other end of the air pipe is connected to a drying tube that is fixedly connected to the protective cover.

[0012] After the fertilizer is mixed inside the fertilizer bag, the fertilizer bag is leveled again by the loading and unloading robotic arm. The multi-point synchronous sampling module of the fertilizer bag on the outside is activated. The position of the sampling cylinder is adjusted by activating the angle adjustment mechanism and the first electric push rod. Then, the sampling cylinder is inserted into the fertilizer bag for sampling by the first horizontal moving mechanism. After sampling is completed, the first horizontal moving mechanism is reset, and the first electric push rod drives the sampling cylinder to move upward. The sample inside the sampling cylinder can then enter the fertilizer collection mechanism through the tail end of the sampling cylinder for centralized collection and processing. Compared with manually piercing the four corners of the fertilizer bag one by one for sampling, this device can achieve multi-point sampling at one time, which greatly improves the sampling efficiency. During sampling, since phosphorus in fertilizers is soluble in water, in order to ensure the quality of the sampled product, the heating mechanism is activated at this time. Hot air can be used to dry the inside of the sampling tube through the air pipe and the drying pipe to avoid water droplets inside the sampling tube affecting the sample quality during the first use.

[0013] As an optional embodiment of the sampling device for detecting phosphorus components in fertilizers according to the present invention, the fertilizer sample dispersion collection module includes a hollow limiting frame. A second electric push rod is fixedly connected to one side of the limiting frame. A collection frame is detachably connected to the free end of the second electric push rod. A partition plate that is evenly distributed and divides the inside of the collection frame into multiple sample collection chambers is fixedly connected inside the collection frame. Each sample collection chamber is equipped with an intelligent sensing unit. A vertically arranged feeding cylinder is connected to the top of the limiting frame.

[0014] As an optional embodiment of the sampling device for detecting phosphorus components in fertilizers according to the present invention, the loading and unloading hammering integrated module includes a second horizontal moving mechanism that is fixedly connected to the chassis and can rotate on its own. An L-shaped loading and unloading frame is also installed on the inner side of the second horizontal moving mechanism. One side of the loading and unloading frame extends into the fertilizer bag flipping module. A loading and unloading robotic arm for loading and unloading fertilizer bags, a multi-angle moving mechanism, and an image recognition unit for image recognition processing of fertilizer bags are also installed on one side of the loading and unloading frame. A reciprocating mechanism is installed at the bottom of the multi-angle moving mechanism. A hammer rod is fixedly connected to the moving end of the reciprocating mechanism. The other end of the hammer rod is rotatably connected to a horizontally set fixed shaft. Rotating sleeves are fixedly connected to both sides of the fixed shaft.

[0015] During loading and unloading, the fertilizer bags can be automatically gripped by the cooperation of the second horizontal moving mechanism, the loading and unloading frame and the loading and unloading robotic arm. Furthermore, since the image recognition unit recognizes the surface condition of the fertilizer bags, when there are local protrusions, the reciprocating mechanism can be driven by the multi-angle moving mechanism to move at multiple angles, thereby hammering the protruding parts and achieving precise processing of the clumped fertilizer.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This device features a fixed outer cylinder with a continuously rotating inner cylinder inside. Fertilizer bags are conveyed into the rotating inner cylinder via an integrated loading and unloading hammering module and positioned inside the inner mesh cylinder. A rotating motor drives a gear disc to rotate, which in turn drives a gear ring to rotate synchronously, thereby continuously rotating the inner cylinder to achieve continuous flipping of the fertilizer bags on the inner side. Simultaneously, in conjunction with the integrated loading and unloading hammering module, the device ensures that the fertilizer inside the bags is mixed evenly, guaranteeing the representativeness and accuracy of subsequent sampling.

[0017] Both the rotating inner cylinder and the inner mesh cylinder adopt a structural design with a central outward convexity. On the one hand, this can reliably limit the fertilizer bag and prevent it from shifting during the flipping process. On the other hand, when the rotating inner cylinder flips, it can guide the fertilizer in the fertilizer bag to gather in the central area, which makes it easier for the reciprocating mechanism to drive the hammer rod and the fixed shaft to accurately act on the concentrated area of ​​clumps in the center of the fertilizer bag, significantly improving the targeting and treatment quality of clump breaking.

[0018] After the fertilizer is evenly mixed inside the fertilizer bag, the loading and unloading robotic arm levels the bag. Then, the multi-point synchronous sampling module on the outer side of the fertilizer bag is activated. The spatial position of the sampling cylinder is adjusted by an angle adjustment mechanism and a first electric push rod. The first horizontal moving mechanism then drives the sampling cylinder towards the fertilizer bag and inserts it into the bag to complete the sampling. After sampling, the first horizontal moving mechanism resets, and the first electric push rod moves the sampling cylinder upwards. The sample inside the sampling cylinder falls into the fertilizer collection mechanism through the discharge structure at its tail end, achieving centralized sample collection and processing. Compared to the traditional method of manually piercing each of the four corners of the fertilizer bag to extract samples, this device can complete multi-point synchronous sampling in one go, significantly improving sampling efficiency.

[0019] Considering the water-soluble nature of phosphorus in fertilizers, to avoid residual water droplets on the inner wall of the sampling tube affecting sample quality, the heating mechanism is activated before sampling. The hot air generated by heating is transported to the inside of the sampling tube through the air pipe and drying pipe to pre-dry the sampling tube, ensuring that the inner wall of the sampling tube is dry and clean, thus guaranteeing the purity of the sample and the accuracy of the test.

[0020] During the loading and unloading process, the second horizontal moving mechanism, the loading and unloading frame and the loading and unloading robotic arm work together to achieve automated gripping and transfer of fertilizer bags. At the same time, the image recognition unit detects the surface condition of the fertilizer bags in real time. When a local protrusion (suspected clump area) is detected, the multi-angle moving mechanism drives the reciprocating mechanism to perform multi-angle displacement adjustment, which in turn drives the hammering component to precisely hammer the protrusion, thereby achieving targeted breaking up of clumped fertilizer.

[0021] After the sampling operation is completed, in order to address the issue of fertilizer spillage inside the fertilizer bag, the inner mesh cylinder can guide the spilled fertilizer to fall smoothly into the rotating inner cylinder. As the rotating inner cylinder continues to rotate, the spilled fertilizer falls through the discharge hole on the outside of the rotating inner cylinder, and then collects into the bulk material collection frame through the discharge trough below the fixed outer cylinder, realizing the centralized recycling of spilled fertilizer and effectively avoiding material waste. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a sampling device for detecting phosphorus content in fertilizers; Figure 2 This is a schematic diagram of the structure of a fertilizer bag flipping module, a sampling device for detecting phosphorus content in fertilizers. Figure 3 This is a schematic diagram of the rotating inner cylinder of a sampling device used for detecting phosphorus content in fertilizers. Figure 4 This is a schematic diagram of the installation structure of the inner mesh cylinder of a sampling device used for detecting phosphorus content in fertilizers. Figure 5 This is a schematic diagram of the support ring structure of a sampling device used for detecting phosphorus content in fertilizers. Figure 6 This is a schematic diagram of the limiting ring structure of a sampling device used for detecting phosphorus content in fertilizers; Figure 7 This is a schematic diagram of the structure of a multi-point synchronous sampling module for fertilizer bags, a sampling device for detecting phosphorus content in fertilizers. Figure 8 This is a schematic diagram of the fertilizer collection mechanism of a sampling device for detecting phosphorus content in fertilizers. Figure 9 This is a schematic diagram of the guide slider of a sampling device used for detecting phosphorus content in fertilizers; Figure 10 This is a schematic diagram of the fertilizer sample dispersion and collection module of a sampling device for detecting phosphorus content in fertilizers. Figure 11 This is a schematic diagram of the integrated loading and unloading hammering module of a sampling device for detecting phosphorus content in fertilizers. Figure 12 This is a schematic diagram of the structure of an intelligent sensing unit in a sampling device for detecting phosphorus content in fertilizers.

[0023] In the diagram: 1. Chassis; 2. Fertilizer bag flipping module; 201. Fertilizing motor; 202. Gear disk; 203. Gear ring; 204. Rotating inner cylinder; 205. Guide roller; 206. Limiting ring; 207. Inner mesh cylinder; 208. Reinforcing ring; 209. Support ring; 210. Fixed outer cylinder; 3. Fertilizer bag multi-point synchronous sampling module; 301. First horizontal moving mechanism; 302. Angle adjustment mechanism; 303. Sliding ring; 304. Sampling cylinder; 305. First support plate; 306. First electric push rod; 307. Support frame; 308. Fertilizer collection mechanism; 3081. Second support plate; 3082. Guide cylinder; 3083. Conveying pipe 3084. Protective cover; 3085. Heating mechanism; 3086. Air pipe; 3087. Drying tube; 309. Guide slider; 4. Fertilizer sample dispersion and collection module; 401. Limiting frame; 402. Second electric push rod; 403. Collection frame; 404. Divider plate; 405. Intelligent sensing unit; 406. Feeding cylinder; 5. Loading and unloading hammering integrated module; 501. Second horizontal moving mechanism; 502. Loading and unloading frame; 503. Multi-angle moving mechanism; 504. Image recognition unit; 505. Loading and unloading robotic arm; 506. Reciprocating mechanism; 507. Hammering rod; 508. Fixed shaft; 509. Rotating sleeve; 6. Bulk material collection frame. Detailed Implementation

[0024] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The present invention provides a technical solution: A sampling device for detecting phosphorus content in fertilizers includes a fertilizer bag flipping module 2, which can be used to flip fertilizer bags. The bottom of the fertilizer bag flipping module 2 is fixedly connected to a chassis 1 placed on the ground. On both sides of the chassis 1, there are symmetrically arranged fertilizer bag multi-point synchronous sampling modules 3 for puncturing and sampling fertilizer bags. On the other side of the fertilizer bag multi-point synchronous sampling modules 3, there are fertilizer sample dispersion collection modules 4 set below the ground plane for collecting fertilizer samples. The fertilizer bag flipping module 2 is equipped with an integrated loading and unloading hammering module 5 for automatically loading and unloading fertilizer bags. The bottom of the integrated loading and unloading hammering module 5 is fixedly connected to one side of the chassis 1. A loose material collection frame 6 is also installed on the side of the chassis 1. The loose material collection frame 6 is used to collect loose fertilizer that falls into the fertilizer bag flipping module 2. The fertilizer bag flipping module 2 includes a fixed outer cylinder 210 fixedly connected to the chassis 1. A flipping motor 201 fixedly connected to the chassis 1 is provided on one side of the fixed outer cylinder 210. A gear disk 202 is fixedly connected to the end of the main shaft of the flipping motor 201. A gear ring 203 is meshed on one side of the gear disk 202. A rotating inner cylinder 204 is fixedly connected to the inner side of the gear ring 203. A support ring 209 is fixedly connected to the center of the inner side of the rotating inner cylinder 204. An inner mesh cylinder 207 with a mesh pattern is fixedly connected to the inner side of the support ring 209. Reinforcing rings 208 are fixedly connected to the inner mesh cylinder 207 on both sides of the support ring 209. Both the inner cylinder 204 and the inner mesh cylinder 207 have outward convex centers on their inner sides, and the outer inclined parts of the inner cylinder 204 are provided with feeding holes for the scattered fertilizer to fall.

[0025] Both sides of the rotating inner cylinder 204 are provided with concave rings, and multiple limiting rings 206 are provided in the concave rings. The inner side of each limiting ring 206 is rotatably connected to a guide roller 205. The two ends of the guide roller 205 are fixedly connected to the fixed outer cylinder 210 through a fixed seat.

[0026] A central groove is provided at the bottom center of the fixed outer cylinder 210 to facilitate contact between the gear disc 202 and the gear ring 203, and a material discharge groove is provided on both sides of the central groove at the bottom of the fixed outer cylinder 210.

[0027] Fertilizers often require centralized storage after production, and sampling and testing (such as phosphorus content testing) are necessary before use. Current sampling procedures typically involve manual operation: workers randomly select several fertilizer bags weighing approximately 50kg and lay them flat on the ground. They then manually turn and shake the bags multiple times to disperse any clumps of fertilizer inside, and finally break up the clumps by foot to ensure representativeness of the subsequent samples. However, this method has significant drawbacks: firstly, the 50kg / bag weight limit is too high. The manual process of repeatedly turning over fertilizer bags is extremely labor-intensive, and the uneven force of manual vibration leads to poor fertilizer mixing. Secondly, the method of dealing with caking is singular, lacking a dedicated crushing mechanism. The foot crushing method is not targeted and effective enough to completely break up caking, which may result in the sample not being able to truly reflect the overall quality of the fertilizer, thus affecting the accuracy of the test results. This device uses a fixed outer cylinder 210, inside which is a continuously rotating inner cylinder 204. The fertilizer bags are transported to the rotating inner cylinder 204 by the loading and unloading hammering integrated module 5 and are located inside the inner mesh cylinder 207 inside the rotating inner cylinder 204. The rotating motor 201 drives the gear disk 202 to rotate, and the gear disk 202 drives the gear ring 203 to rotate, which in turn makes the rotating inner cylinder 204 rotate, so as to continuously turn over the fertilizer bags inside. In conjunction with the loading and unloading hammering integrated module 5, it can ensure that the fertilizer inside the fertilizer bag is uniformly mixed and ensure the quality of product sampling. Both the rotating inner cylinder 204 and the inner mesh cylinder 207 adopt a structural design with a central outward convexity on the inner side. This design can reliably limit the fertilizer bag and prevent it from shifting during the turning process; on the other hand, it can also ensure the stability of the rotating inner cylinder 204. During operation, it guides the fertilizer inside the fertilizer bag to converge towards the central area, further enhancing the stability of the fertilizer bag's positioning. To avoid the convex structure excessively enveloping the bag and affecting the operational effect, its convex depth is set to 8-15cm. This ensures that while guaranteeing the positioning and material guiding effect, it does not interfere with the normal flipping of the fertilizer bag and subsequent hammering and sampling operations. This facilitates the reciprocating mechanism 506 driving the hammering rod 507 and the fixed shaft 508 to hammer the center of the fertilizer bag. During the hammering process, due to the central convexity, the convex surface can block the clumps of fertilizer to a certain extent, allowing for targeted hammering of the clumps and ensuring the quality of clump treatment. Simultaneously, as the fertilizer bag rotates and flips with the inner cylinder, it is lifted to a preset height and then completes its autonomous flipping. The drop created by this flipping action can impact the material inside the bag, achieving comprehensive crushing of large-area small clumps. The hammering rod 507... Its active hammering function can precisely target large clumps inside the bag to achieve targeted fragmentation. The two functions mentioned above form a synergistic and complementary dual fragmentation mechanism. Through the synergistic effect of the comprehensiveness of mechanical impact and the precision of targeted hammering, it ensures that all kinds of clumps of fertilizer inside the bag can be completely broken up, significantly improving the effectiveness, thoroughness and targeting of clump treatment. After the fertilizer sampling is completed, there may be instances where fertilizer falls out of the fertilizer bag. In this case, the inner mesh cylinder 207 ensures that the scattered fertilizer falls smoothly into the rotating inner cylinder 204. As the rotating inner cylinder 204 rotates, the fertilizer can fall through the discharge hole on the outside of the rotating inner cylinder 204 and fall into the loose material collection frame 6 through the discharge chute below the fixed outer cylinder 210, thus achieving centralized collection of fertilizer and avoiding waste. Also includes the following: Four multi-point synchronous sampling modules 3 for fertilizer bags are located at the four corners of the fertilizer bag, facilitating simultaneous multi-point sampling from all four locations and improving sampling efficiency. After sampling, the fertilizer inside the fertilizer bag easily falls through the puncture point. The inner mesh cylinder 207 inside the rotating inner cylinder 204 is mesh-like, allowing the falling fertilizer to fall below the inner mesh cylinder 207 and be discharged through the discharge hole on the outside of the rotating inner cylinder 204 and the discharge chute at the bottom of the fixed outer cylinder 210. The inner mesh cylinder 207 serves to support the fertilizer bag, and two sets of reinforcing rings 208 are also provided on the outside of the inner mesh cylinder 207 to further ensure the overall stability of the inner mesh cylinder 207. A support ring 209 is fixedly connected to the outside of the inner mesh cylinder 207, with the support ring 209 facing the reinforcing ring 208. The two sides are designed with an inclined structure, which can guide the scattered fertilizer to flow in a directional direction to both sides, so as to facilitate the collection of the loose material along the preset path, providing convenience for subsequent centralized collection operations and ensuring the efficiency and integrity of loose material collection. The concave rings on both sides of the rotating inner cylinder 204 cooperate with the limiting rings 206, which can ensure the stable rotation of the rotating inner cylinder 204 and prevent it from being displaced. The guide roller 205 is rotatably connected to the fixed seats on both sides, which facilitates the guide roller 205 to support the rotating inner cylinder 204 and make it rotate stably.

[0028] Example 2: This example is an improvement upon Example 1. Please refer to [link / reference]. Figure 7 , Figure 8 and Figure 9 Specifically, the fertilizer bag multi-point synchronous sampling module 3 includes multiple retractable first horizontal moving mechanisms 301 set inside the chassis 1. An angle adjustment mechanism 302 is fixedly connected to one end of each first horizontal moving mechanism 301. A sliding ring 303 is rotatably connected to the top of each angle adjustment mechanism 302. A sampling cylinder 304 for puncturing and sampling the fertilizer bag is slidably connected to the inner side of each sliding ring 303. A first support plate 305 is fixedly connected to one side of the angle adjustment mechanism 302. A vertically arranged first electric push rod 306 is fixedly connected above the first support plate 305. A support frame 307 is fixedly connected to the free end of the first electric push rod 306. Guide sliders 309 are fixedly connected to the inner side of the support frame 307. The guide sliders 309 are set in the bottom groove of the sampling cylinder 304 and are slidably connected to the sampling cylinder 304.

[0029] On the side away from the first support plate 305, the angle adjustment mechanism 302 is also fixedly connected to a fertilizer collection mechanism 308. The fertilizer collection mechanism 308 includes a second support plate 3081 fixedly connected to the angle adjustment mechanism 302. A guide cylinder 3082 is installed above the second support plate 3081 and passes through the second support plate 3081. The bottom of the guide cylinder 3082 is connected to a conveying pipe 3083, and the top of the guide cylinder 3082 is fixedly connected to a protective cover 3084.

[0030] A heating mechanism 3085 is also installed above the second support plate 3081. The output end of the heating mechanism 3085 is connected to an air pipe 3086, and the other end of the air pipe 3086 is connected to a drying pipe 3087 that is fixedly connected to the protective cover 3084.

[0031] After the fertilizer is evenly mixed inside the fertilizer bag, the loading and unloading robotic arm 505 levels the fertilizer bag, causing the fertilizer inside to spread to the four corners, ensuring that the four corners of the bag are fully exposed. This provides precise operating conditions for the sampling cylinder 304 to puncture and sample. Then, the multi-point synchronous sampling module 3 on the outside of the fertilizer bag is activated. Through the coordinated control of the angle adjustment mechanism 302 and the first electric push rod 306, the sampling cylinder 304 is adjusted to the preset tilt angle and accurately inserted into the fertilizer bag to complete the sampling. After sampling, the sampling cylinder 304 is first reset to a horizontal state and then smoothly withdrawn, effectively avoiding sample spillage during the sampling process and ensuring the stability and integrity of sample collection. The sampling cylinder 304 is inserted into the fertilizer bag for sampling by means of the first horizontal moving mechanism 301. After sampling is completed, the first horizontal moving mechanism 301 is reset, and the first electric push rod 306 drives the sampling cylinder 304 to move upward. The sample inside the sampling cylinder 304 can then enter the fertilizer collection mechanism 308 through the tail end of the sampling cylinder 304 for centralized collection and processing. Compared with manually piercing the four corners of the fertilizer bag one by one for sampling, this device can achieve multi-point sampling at one time, which greatly improves the sampling efficiency. During sampling, since phosphorus in fertilizer is soluble in water, in order to ensure the quality of the sampled product, the heating mechanism 3085 is activated. The heating mechanism 3085 can be a blower. The hot air blown out can dry the inside of the sampling tube 304 through the air pipe 3086 and the drying pipe 3087 to avoid the sampling tube 304 containing water droplets that affect the sample quality during the first use. Also includes the following: During multi-point synchronous sampling, the image recognition unit 504 identifies the placement of the fertilizer bags. If the bags are not level, the loading / unloading robotic arm 505 is activated to reposition them. Simultaneously, the angle adjustment mechanism 302 rotates the upper sliding ring 303 to adjust the position of the sampling cylinder 304. At the same time, the first electric push rod 306 moves the upper support frame 307. The guide slider 309 inside the support frame 307 engages with the bottom groove of the sampling cylinder 304. The T-shaped guide slider 309 has a cylindrical top. The sampling tube 304 can rotate inside the sampling tube 304 to drive the sampling tube 304 to a certain tilt angle, so that one end of the sampling tube 304 can be accurately inserted into the fertilizer bag. The fertilizer enters through the open part of one end of the sampling tube 304 to achieve the sampling work. Multiple sampling tubes 304 are set with different insertion heights to avoid collisions. The top of the angle adjustment mechanism 302 rotates on the vertical plane with the sliding ring 303. At this time, the sampling tube 304 rotates around the connection position of the sliding ring 303 and the angle adjustment mechanism 302, thereby adjusting the tilt angle of the sampling tube 304. An arc-shaped protective cover 3084 is provided at the top of the guide cylinder 3082 to ensure that the fertilizer enters the guide cylinder 3082 accurately and enters the fertilizer sample dispersion and collection module 4 through the conveying pipe 3083 below. The fertilizer sample dispersion and collection module 4 is set at a low position and can be set in a pit to facilitate the stable entry of fertilizer materials into the fertilizer sample dispersion and collection module 4 and avoid accumulation inside the conveying pipe 3083. The drying tube 3087 is arranged in a "7" shape, which allows hot air to enter smoothly when drying the inside of the sampling tube 304, ensuring the drying quality, and also has a certain dust removal effect.

[0032] Example 3: This example is an improvement on Example 2. Please refer to [link / reference]. Figure 10 , Figure 11 and Figure 12 Specifically, the fertilizer sample dispersion collection module 4 includes a hollow limiting frame 401. A second electric push rod 402 is fixedly connected to one side of the limiting frame 401. A collection frame 403 is detachably connected to the free end of the second electric push rod 402. A partition plate 404, which divides the inside of the collection frame 403 into multiple sample collection chambers, is fixedly connected inside the collection frame 403. Each sample collection chamber is equipped with an intelligent sensing unit 405. A vertically arranged feeding cylinder 406 is connected to the top of the limiting frame 401.

[0033] The loading and unloading hammering integrated module 5 includes a second horizontal moving mechanism 501 that is fixedly connected to the chassis 1 and can rotate on its own. An L-shaped loading and unloading frame 502 is also installed on the inner side of the second horizontal moving mechanism 501. One side of the loading and unloading frame 502 extends into the fertilizer bag flipping module 2. A loading and unloading robotic arm 505, a multi-angle moving mechanism 503, and an image recognition unit 504 for image recognition processing of fertilizer bags are also installed on one side of the loading and unloading frame 502. A reciprocating mechanism 506 is installed at the bottom of the multi-angle moving mechanism 503. A hammer rod 507 is fixedly connected to the moving end of the reciprocating mechanism 506. A horizontally set fixed shaft 508 is rotatably connected to the other end of the hammer rod 507. Rotating sleeves 509 are fixedly connected to both sides of the fixed shaft 508.

[0034] During loading and unloading, the fertilizer bags can be automatically gripped by the cooperation of the second horizontal moving mechanism 501, the loading and unloading frame 502 and the loading and unloading robotic arm 505. Furthermore, since the image recognition unit 504 recognizes the surface condition of the fertilizer bag, when there are local protrusions, the multi-angle moving mechanism 503 can drive the reciprocating mechanism 506 to move at multiple angles, thereby hammering the protruding parts and achieving precise processing of the clumped fertilizer. Also includes the following: When multiple samples are taken, this device can prevent the samples from being located in one place. When the sample enters the limiting frame 401 through the feeding cylinder 406, when the intelligent sensing unit 405 in the sample collection chamber detects a certain pressure value, the limiting frame 401 can be moved by the second electric push rod 402, so that each sample falls into a different sample collection chamber in sequence, realizing the centralized collection of multiple samples. The intelligent sensing unit 405 consists of a support frame, a pressure sensing unit, and an alarm unit. The bottom of the pressure sensing unit is connected to the collection frame 403, and the detection end of the pressure sensing unit is connected to the support frame. The alarm unit is installed on one side of the bottom of the support frame. When the sample falls into the collection frame 403, its pressure sensing unit detects the sample weight. When the sample weight reaches the set threshold, it indicates that the quality of the extracted sample meets the standard. Otherwise, the alarm unit is activated, and a flashing light illuminates to remind that the quality of the sample inside the collection frame 403 on that side does not meet the standard and needs to be replenished.

[0035] When taking fertilizer samples, the reciprocating mechanism 506 drives the hammering rod 507 to move back and forth quickly, so that the fixed shaft 508 and the rotating sleeve 509 below can come into contact with the fertilizer bag to achieve hammering, ensuring that the clumps inside the fertilizer bag are treated and the sample quality is guaranteed. Since the fertilizer bag rotates inside the fertilizer bag flipping module 2, when the rotating sleeve 509 comes into contact with the fertilizer bag, the rotating sleeve 509 can rotate to avoid scratching the fertilizer bag.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A sampling device for detecting the phosphorus component of chemical fertilizer, characterized in that: it comprises a chemical fertilizer bag overturning module (2) that can be used to overturn the chemical fertilizer bag; the bottom of the chemical fertilizer bag overturning module (2) is fixedly connected with a chassis (1) placed on the ground, both sides of the inside of the chassis (1) are provided with symmetrically arranged chemical fertilizer bag multi-point synchronous sampling modules (3) that can be used to puncture and sample the chemical fertilizer bag, and the other sides of the chemical fertilizer bag multi-point synchronous sampling modules (3) are provided with chemical fertilizer sample dispersion collection modules (4) arranged below the ground level and used to collect the chemical fertilizer sample; the inside of the chemical fertilizer bag overturning module (2) is provided with an up-down feeding and beating integrated module (5) that can be used to automatically feed and discharge the chemical fertilizer bag, the bottom of the up-down feeding and beating integrated module (5) is fixedly connected with one side of the chassis (1), and the side of the chassis (1) is further provided with a bulk material collection frame (6) used to collect the bulk chemical fertilizer falling into the inside of the chemical fertilizer bag overturning module (2); the chemical fertilizer bag overturning module (2) comprises a fixed outer cylinder (210) fixedly connected with the chassis (1), one side of the fixed outer cylinder (210) is provided with a overturning motor (201) fixedly connected with the chassis (1), the tail end of the main shaft of the overturning motor (201) is fixedly connected with a gear disc (202), one side of the gear disc (202) is engaged with a gear ring (203), and the inner side of the gear ring (203) is fixedly connected with a rotating inner cylinder (204); the inner side of the rotating inner cylinder (204) is fixedly connected with a support ring (209) in the center, the inner side of the support ring (209) is fixedly connected with an inner mesh cylinder (207) arranged in a mesh shape, and both sides of the support ring (209) are provided with reinforcing rings (208) fixedly connected with the inner mesh cylinder (207); the inner sides of the rotating inner cylinder (204) and the inner mesh cylinder (207) are both arranged in an outward convex manner, and the outer side inclined parts of the rotating inner cylinder (204) are both provided with discharging holes used to make the bulk chemical fertilizer fall. Both sides of the rotating inner cylinder (204) are provided with concave rings, a plurality of limiting rings (206) are arranged in the concave rings, the inner sides of the limiting rings (206) are all rotatably connected with guide rollers (205), and both ends of the guide rollers (205) are fixedly connected with the fixed outer cylinder (210) through fixed seats. The lower center of the fixed outer cylinder (210) is provided with a central groove facilitating the contact between the gear disc (202) and the gear ring (203), and both sides of the central groove are further provided with discharging grooves arranged in the bottom of the fixed outer cylinder (210). The chemical fertilizer bag multi-point synchronous sampling module (3) comprises a plurality of first horizontal moving mechanisms (301) arranged in the inside of the chassis (1) and capable of being retracted, one end of each of the first horizontal moving mechanisms (301) is fixedly connected with an angle adjusting mechanism (302), the top of each of the angle adjusting mechanisms (302) is rotatably connected with a sliding ring (303), and the inner side of each of the sliding rings (303) is slidably connected with a sampling cylinder (304) used to puncture and sample the chemical fertilizer bag. ​ ​ ​ 2. The sampling device for detecting the phosphorus component of chemical fertilizer according to claim 1, characterized in that: ​ 3. The sampling device for detecting the phosphorus component of chemical fertilizer according to claim 1, characterized in that: ​ 4. The sampling device for detecting the phosphorus component of chemical fertilizer according to claim 1, characterized in that: ​ A first support plate (305) is fixedly connected to one side of the angle adjustment mechanism (302). A vertically arranged first electric push rod (306) is fixedly connected above the first support plate (305). A support frame (307) is fixedly connected to the free end of the first electric push rod (306). A guide slider (309) is fixedly connected to the inner side of the support frame (307). The guide slider (309) is set in the bottom groove of the sampling cylinder (304) and is slidably connected to the sampling cylinder (304).

5. The sampling device for detecting the phosphorus component of chemical fertilizer according to claim 4, characterized in that: A fertilizer collection mechanism (308) is also fixedly connected to the side of the angle adjustment mechanism (302) away from the first support plate (305). The fertilizer collection mechanism (308) includes a second support plate (3081) fixedly connected to the angle adjustment mechanism (302). A guide cylinder (3082) penetrating the second support plate (3081) is installed above the second support plate (3081). The bottom of the guide cylinder (3082) is connected to a conveying pipe (3083). The top of the guide cylinder (3082) is fixedly connected to a protective cover (3084).

6. The sampling device for detecting the phosphorus component of chemical fertilizer according to claim 5, characterized in that: A heating mechanism (3085) is also installed above the second support plate (3081). The output end of the heating mechanism (3085) is connected to an air pipe (3086), and the other end of the air pipe (3086) is connected to a drying pipe (3087) that is fixedly connected to the protective cover (3084).

7. The sampling device for detecting the phosphorus component of chemical fertilizer according to claim 1, characterized in that: The fertilizer sample dispersion collection module (4) includes a hollow limiting frame (401), a second electric push rod (402) is fixedly connected to one side of the limiting frame (401), and a collection frame (403) is detachably connected to the free end of the second electric push rod (402). A partition plate (404) is fixedly connected inside the collection frame (403) to divide the inside of the collection frame (403) into multiple sample collection chambers. Each sample collection chamber is equipped with an intelligent sensing unit (405). The top of the limiting frame (401) is connected to a vertically arranged feeding cylinder (406). 8.The sampling device for detecting the phosphorus component of chemical fertilizer according to claim 1, characterized in that: The loading and unloading hammering integrated module (5) includes a second horizontal moving mechanism (501) that is fixedly connected to the chassis (1) and can rotate on its own. The inner side of the second horizontal moving mechanism (501) is also equipped with an L-shaped loading and unloading frame (502). One side of the loading and unloading frame (502) extends into the fertilizer bag flipping module (2). The loading and unloading frame (502) is also equipped with a loading and unloading robotic arm (505), a multi-angle moving mechanism (503), and an image recognition unit (504) for image recognition processing of fertilizer bags. A reciprocating mechanism (506) is installed at the bottom of the multi-angle moving mechanism (503). A hammer rod (507) is fixedly connected to the moving end of the reciprocating mechanism (506). A horizontally set fixed shaft (508) is rotatably connected to the other end of the hammer rod (507). Rotating sleeves (509) are fixedly connected to both sides of the fixed shaft (508).

Images