Compound fertilizer solution sampling and cleaning equipment

Abstract

This invention relates to the field of fertilizer processing and production, specifically disclosing a compound fertilizer solution sampling and cleaning device. The device includes a sampling platform and a support frame, with the support frame fixedly installed on the sampling platform. It also includes several sampling units; several sampling tubes, each connected to one of the sampling units; a position control component that controls the position of the sampling tubes, detachably connected to the sampling tubes and the support frame; several rinsing components, each connected to one of the sampling units and the support frame; and a power component that drives the sampling units to sequentially face the sampling tubes and rinsing components, detachably connected to the support frame. This sampling and cleaning device can perform multi-point sampling of the compound fertilizer solution within the compound fertilizer solution production equipment, simultaneously acquiring detection data from multiple samples. This facilitates obtaining more accurate detection data, and the data can be cross-referenced, improving the accuracy of the detection.

Description

Technical Field

[0001] This invention relates to the field of fertilizer processing and production technology, and in particular to a compound fertilizer solution sampling and cleaning device. Background Technology

[0002] In the production and quality control of compound fertilizers, it is usually necessary to sample, pretreat, and test the solution to determine the content of key nutrients such as nitrogen, phosphorus, potassium, and trace elements. With the development of automation and online analysis technologies, various sampling devices are widely used in the continuous sampling and processing of compound fertilizer solutions. A typical sampling and processing flow generally includes basic steps such as aspiration, transfer, rinsing, and return (emptying), which are completed in coordination by pumps, valve groups, pipelines, and control systems.

[0003] In existing technologies, sampling devices typically employ a time-series control method, sequentially performing sample aspiration, sample transfer to the detection or pretreatment unit, rinsing of the tubing and sampling needle with cleaning fluid, and finally emptying residual liquid and resetting to prepare for the next sampling. Existing devices generally sample single tubes of the same batch of solution, performing aspiration, transfer, rinsing, and relocation after sampling. When dealing with large-scale production containers, single-point sampling is prone to incompleteness, leading to incomplete detection information. Furthermore, the sampling head is generally positioned downwards, making it difficult for it to smoothly coordinate with other mechanical structures during aspiration, transfer, rinsing, and relocation, resulting in less than smooth mechanical action and fluid movement. The repeated full-range rinsing process is time-consuming, impacting sampling efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a compound fertilizer solution sampling and cleaning device, which solves the problem that existing devices generally sample a single tube of solution from the same batch, and single-point sampling is prone to being incomplete and obtaining insufficient information.

[0005] To achieve the above objectives, the basic solution of the present invention is as follows: A compound fertilizer solution sampling and cleaning device, comprising a sampling platform and a support frame, wherein the support frame is fixedly installed on the sampling platform, and further comprising:

[0006] Several sampling units;

[0007] Several sampling tubes, each of which can be connected to a sampling unit;

[0008] A position control component for controlling the position of the sampling tube; the position control component is detachably connected to the sampling tube and connected to the support frame.

[0009] Several rinsing components are provided, each of which can be connected to a sampling unit and is connected to a support frame.

[0010] The power unit drives the sampling unit in sequence, which is opposite to the sampling tube and the rinsing assembly. The power unit is detachably connected to the support frame.

[0011] The technical principle of this invention is as follows: several sampling units can simultaneously sample the compound fertilizer solution production equipment under the action of the power component. After sampling, the power component drives several sampling units to face several sampling tubes and several rinsing components respectively, so that the sampled compound fertilizer solution can be collected in sequence. The rinsing components can rinse the sampling units, thereby improving the efficiency of sample absorption, sampling collection, rinsing and return, and thus improving the sampling efficiency.

[0012] The entire sampling and cleaning equipment can perform multi-point sampling of compound fertilizer solution in the compound fertilizer solution production equipment, and can simultaneously acquire test data of multiple samples, which facilitates obtaining more accurate test data. The data can be cross-referenced to improve the accuracy of the test and also improve the testing efficiency.

[0013] Furthermore, the power components include:

[0014] Mounting plate, the mounting plate is vertically fixed on the support frame, and the side of the mounting plate away from the support frame is provided with an arc-shaped sliding groove;

[0015] Several horizontal slide rails are fixedly mounted horizontally on the mounting plate;

[0016] Vertical slide rail;

[0017] A first slider that slides along a horizontal slide rail, and the first slider is detachably connected to a vertical slide rail;

[0018] A second slider that slides along a vertical slide rail, and the second slider is detachably connected to the sampling unit;

[0019] The limiting slider has one end slidably connected to the arc-shaped slide groove, and the other end of the limiting slider is located at the center of the longitudinal section profile of the arc-shaped slide groove. The end of the limiting slider near the arc-shaped slide groove is rotatably connected to the sampling unit.

[0020] The electric motor is fixedly connected to the side of the mounting plate near the support frame, and the power output end of the electric motor passes through the support frame and is fixedly connected to the end of the limit slider away from the arc-shaped slide groove.

[0021] With the above configuration, when the power unit drives the sampling unit, the arc-shaped slide and the limiting slider can cooperate with the sampling unit, thereby driving the entire sampling unit to rotate. At the same time, the horizontal slide rail, the first slider, the vertical slide rail and the second slider can restrict the position change of the sampling unit, so that the horizontal and vertical positions of the sampling unit can be changed without rotation. This makes it easy for the sampling unit to cooperate with the compound fertilizer solution production equipment, the sampling tube and the rinsing assembly in sequence to perform sampling, sample collection and rinsing operations, so that the connection between each step is smooth and the sampling processing efficiency is improved.

[0022] Furthermore, the longitudinal section profile of the arc-shaped chute is three-quarters of a circle. One end of the arc-shaped chute is located at the bottom of the overall profile of the arc-shaped chute, and the other end of the arc-shaped chute is opposite to the middle of the overall profile of the arc-shaped chute. When the end of the limiting slider slides to the bottom of the arc-shaped chute, the sampling unit takes a sample. When the end of the limiting slider slides to the middle of the arc-shaped chute, the sampling unit is directly opposite the rinsing assembly or sampling tube.

[0023] The horizontal slide rail is located on the upper or lower side of the arc-shaped slide groove.

[0024] With the above setup, the power output of the motor drives the limiting slider to slide along the arc-shaped groove, so that the end of the limiting slider moves to the lowest point of the arc-shaped groove, and the sampling unit contacts the liquid surface of the compound fertilizer solution to take a sample; when the power output of the motor drives the limiting slider to slide along the arc-shaped groove to the middle of the arc-shaped groove, the sampling unit is directly opposite the sampling tube; when the power output of the motor drives the limiting slider to slide along the arc-shaped groove to the other end of the arc-shaped groove, the sampling unit is directly opposite the rinsing assembly; throughout the process, the motor drives the limiting slider to rotate back and forth around the arc-shaped groove once, which completes one sampling, realizing the streamlining of the sampling operation and improving sampling efficiency.

[0025] Furthermore, the sampling unit includes:

[0026] The sampling board is set vertically.

[0027] Several sampling components are installed on one side of the sampling plate and arranged sequentially along the horizontal direction of the sampling plate. The other side of the sampling plate is rotatably connected to the limiting slider and fixedly connected to the first slider.

[0028] The sampling components include:

[0029] Connecting rod;

[0030] Several sampling tube heads are installed vertically on the connecting rod, with the suction end of the sampling tube head facing downwards;

[0031] A lifting module that controls the lifting position of the connecting rod; the lifting module is fixedly connected to the sampling plate.

[0032] Negative pressure suction pump, which is connected to the sampling tube head;

[0033] The electromagnetic switch valve is fixedly installed in the middle of the sampling tube head.

[0034] With the above setup, during sampling, the sampling tube head contacts the surface of the compound fertilizer solution, the negative pressure suction pump starts, and the sampling tube head draws the compound fertilizer solution. After 1-3 seconds of suction, the electromagnetic switch valve closes the sampling tube head, the negative pressure suction pump stops, and the sampled compound fertilizer solution remains inside the sampling tube head. When the sampling tube head is connected to the sampling tube, the electromagnetic switch valve opens, and the compound fertilizer solution inside the sampling tube head automatically falls into the sampling tube under gravity. When the sampling tube head is connected to the rinsing assembly, the electromagnetic switch valve remains open for easy rinsing. This achieves automated sampling and facilitates connection and coordination with the sampling tube and rinsing assembly, adapting to various stages of sampling.

[0035] Furthermore, the connecting rod is provided with a sliding block, and the connecting rod is provided with a first sliding groove for the sliding block to slide horizontally. The connecting rod and the sliding block are detachably connected, and the sampling tube head is fixedly connected to the sliding block or the connecting rod.

[0036] With the above settings, the sliding block can be horizontally slid along the first groove on the connecting rod and locked according to specific usage requirements, thereby adjusting the position of two adjacent sampling tube heads on a single connecting rod, which facilitates sampling of compound fertilizer solution at different locations.

[0037] Furthermore, the position control component includes:

[0038] The connecting plate is horizontally and detachably installed on the side of the support frame near the sampling unit;

[0039] A plurality of first hydraulic telescopic rods are provided. The fixed end of the first hydraulic telescopic rod slides in contact with the upper surface of the connecting plate. The axis of the first hydraulic telescopic rod is perpendicular to the vertical axis of the sampling tube head. The connecting plate is provided with a second sliding groove. A third slider is horizontally slidably arranged in the second sliding groove to drive the first hydraulic telescopic rod to slide horizontally along the second sliding groove. The horizontal sliding axis of the first hydraulic telescopic rod is perpendicular to the axis of the first hydraulic telescopic rod. The telescopic end of the first hydraulic telescopic rod can be opposite to the sampling tube head.

[0040] Several first mounting blocks are fixedly mounted on the telescopic end of the first hydraulic telescopic rod. A slot for vertically limiting the sampling tube is provided through the first mounting block, and the top end of the sampling tube can be connected to the sampling tube head.

[0041] With the above settings, in order to make the sampling tube match the corresponding sampling tube head, the first hydraulic telescopic rod slides horizontally along the second slide groove to adjust its position, and the third slider drives the first hydraulic telescopic rod to slide horizontally, so that the position of the corresponding sampling tube matches the sampling tube head, and the overall adjustability of the equipment is increased.

[0042] Furthermore, the rinsing assembly includes:

[0043] Several second hydraulic telescopic rods are provided. The fixed end of the second hydraulic telescopic rod slides in contact with the upper surface of the connecting plate. The axis of the second hydraulic telescopic rod is perpendicular to the vertical axis of the sampling tube head. A fourth slider is horizontally slidably arranged in the second slide groove to drive the second hydraulic telescopic rod to slide horizontally along the second slide groove. The horizontal sliding axis of the second hydraulic telescopic rod is perpendicular to the axis of the second hydraulic telescopic rod. The telescopic end of the second hydraulic telescopic rod can be opposite to the sampling tube head.

[0044] Several flushing tubes;

[0045] Several second mounting blocks are fixedly mounted on the telescopic end of the second hydraulic telescopic rod. The second mounting blocks are vertically provided with a groove for vertically limiting the end of the flushing pipe. The end of the sampling tube head can be connected to the top of the flushing pipe.

[0046] A liquid suction pump is connected to the end of the flushing pipe furthest from the groove.

[0047] With the above setup, when the rinsing tube is connected to the sampling tube head, the liquid suction pump pumps the cleaning solution into the rinsing tube. The cleaning solution flows into the sampling tube head and onto its outer wall, rinsing the sampling tube head. After rinsing for 1-5 seconds, the liquid suction pump draws the cleaning solution to recover it. This quickly removes any residual cleaning solution from the sampling tube head, drying it and facilitating subsequent sampling. It also reduces contamination of the compound fertilizer solution sample by the cleaning solution. During this process, to ensure the sampling tube matches the corresponding sampling tube head, the second hydraulic telescopic rod slides horizontally along the second slide groove to adjust its position. The fourth slider drives the second hydraulic telescopic rod to slide horizontally, ensuring the positions of the rinsing tube and the sampling tube head are matched, further increasing the overall adjustability of the equipment.

[0048] Furthermore, the lower end of the sampling tube head is shaped like an inverted frustum, and the outer wall of the lower end of the sampling tube head is rounded.

[0049] The upper ends of both the flushing tube and the sampling tube can be used to insert the lower end of the sampling tube head.

[0050] With the above-mentioned design, the inverted frustum-shaped structure and rounded structure at the lower end of the sampling tube head make it easier to embed the sampling tube head into the flushing tube and the sampling tube, and the cleaning fluid and compound fertilizer solution are less likely to leak.

[0051] Furthermore, both the flushing tube and the sampling tube are coaxially fixed with elastic sealing films at their upper ends, and the sealing films have cross-shaped cuts that are connected to the flushing tube or the sampling tube.

[0052] With the above settings, after sampling and rinsing are completed, the elastic sealing film can automatically rebound, so that the rinsing tube and the sampling tube are automatically sealed, ensuring that the rinsing tube and the sampling tube remain clean and reducing the interference of the external environment on the sample or the cleanliness of the rinsing tube. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the axial direction of a compound fertilizer solution sampling and cleaning device in an embodiment of the present invention.

[0054] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0055] Figure 3 This is an enlarged view of a single sampling tube and flushing tube along their axial direction.

[0056] Figure 4 for Figure 1 A magnified view of the sampling tube located at the lower left of the center.

[0057] In the above-mentioned attached figures: sampling table 1, support frame 2, connecting rod 101, first slide groove 102, sliding block 103, sampling plate 104, sampling tube head 105, electromagnetic switch valve 106, lifting sleeve 107, screw 108, fixing block 109, connecting plate 201, second slide groove 202, third slider 203, first hydraulic telescopic rod 204, first mounting block 205, sampling tube 206, second hydraulic telescopic rod 401, flushing tube 402, second mounting block 403, fourth slider 404, mounting plate 501, arc-shaped slide groove 502, horizontal slide rail 503, first slider 504, vertical slide rail 505, second slider 506, limiting slider 507, motor 508, sealing film 601, and incision 602. Detailed Implementation

[0058] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0059] This embodiment is basically as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, this embodiment of the invention proposes a compound fertilizer solution sampling and cleaning device, including a sampling platform 1, a support frame 2, a sampling unit, a plurality of sampling tubes 206, a position control component for controlling the position of the sampling tubes 206, a plurality of rinsing components, and a power component for driving the sampling unit to be sequentially opposite to the sampling tubes 206 and the rinsing components. The sampling tubes 206 can be connected to the sampling unit one by one, and the rinsing components can be connected to the sampling unit one by one. The support frame 2 is vertically welded and installed on the sampling platform 1. The sampling platform 1 and the device to be sampled are detachably connected by bolts and screws.

[0060] like Figure 1 As shown, the power assembly includes a mounting plate 501, a horizontal slide rail 503, a first slider 504 sliding along the horizontal slide rail 503, a vertical slide rail 505, a second slider 506 sliding along the vertical slide rail 505, a limiting slider 507, and a motor 508. The mounting plate 501 is vertically fixed to the front side of the support frame 2 by bolts and nuts. An arc-shaped groove 502 is provided in the middle of the front side of the mounting plate 501, and the longitudinal section profile of the arc-shaped groove 502 is three-quarters of a circle. The horizontal slide rail 503 is fixed to the front side of the support frame 2 by bolts and nuts. The first slider 504 is detachably connected to the vertical slide rail 505 and is horizontally fixed on the upper side of the mounting plate 501. One end of the limiting slider 507 is slidably connected to the arc-shaped slide groove 502, and the other end of the limiting slider 507 is located at the center of the longitudinal section profile of the arc-shaped slide groove 502. The motor 508 is fixedly connected to the rear side of the mounting plate 501 by bolts and nuts. The power output end of the motor 508 passes through the support frame 2 and is fixedly connected to the end of the limiting slider 507 away from the arc-shaped slide groove 502 by a pin.

[0061] At the same time, such as Figure 1 As shown, the lower end of the arc-shaped chute 502 is located at the bottom of the overall outline of the arc-shaped chute 502, and the right end of the arc-shaped chute 502 is horizontally aligned with the middle of the overall outline of the arc-shaped chute 502; when the end of the limiting slider 507 slides to the bottom of the arc-shaped chute 502, the sampling unit performs sampling; when the end of the limiting slider 507 slides to the middle of the arc-shaped chute 502, the sampling unit is aligned with the rinsing assembly or the sampling tube 206.

[0062] like Figure 1 and Figure 2As shown, the sampling unit includes a sampling plate 104 and four sets of sampling components. Each sampling component includes a connecting rod 101, a lifting module controlling the lifting position of the connecting rod 101, a negative pressure suction pump, a solenoid valve 106, and two sets of sampling tube heads 105. The sampling plate 104 is vertically positioned. The four sets of sampling components are installed on the front side of the sampling plate 104 and arranged sequentially along the horizontal direction of the sampling plate 104. The middle portion of the sampling plate 104 is rotatably connected to a limiting slider 507, and the middle portion of the sampling plate 104 is fixedly connected to a second slider 506 by bolts. The lifting module includes a lifting sleeve 107, a screw 108, and a fixing block 109. The fixing block 109 is welded to the front side of the sampling plate 104, and the screw 108... 8 passes vertically through the fixing block 109 and is threadedly connected to the fixing block 109. The lower end of the screw 108 is rotatably connected to the upper end of the connecting rod 101. The lifting sleeve 107 slides in contact with the outer wall of the connecting rod 101. The sampling tube head 105 is vertically installed on the lower end of the connecting rod 101, with the suction end of the sampling tube head 105 facing downwards. The negative pressure suction pump is connected to the sampling tube head 105. The electromagnetic switch valve 106 is fixedly installed in the middle of the sampling tube head 105. A first sliding groove 102 is provided on part of the connecting rod 101 for the sliding block 103 to slide horizontally. The sliding block 103 is slidably or locked in the first sliding groove 102 of the connecting rod 101. The sampling tube head 105 is fixedly connected to the sliding block 103 or the connecting rod 101.

[0063] like Figure 2 As shown, the position control assembly includes a connecting plate 201, a plurality of first hydraulic telescopic rods 204, and a plurality of first mounting blocks 205. The connecting plate 201 is horizontally and detachably mounted on the front side of the support frame 2 by bolts and nuts. The fixed ends of the first hydraulic telescopic rods 204 slide in contact with the upper surface of the connecting plate 201, and the axis of the first hydraulic telescopic rods 204 is perpendicular to the vertical axis of the sampling tube head 105. The connecting plate 201 is provided with a second sliding groove 202, and a device for driving the first hydraulic telescopic rods 204 is horizontally slidably arranged in the second sliding groove 202. A third slider 203 slides horizontally along a second slide groove 202 with a hydraulic telescopic rod 204. The horizontal sliding axis of the first hydraulic telescopic rod 204 is perpendicular to the axis of the first hydraulic telescopic rod 204. The telescopic end of the first hydraulic telescopic rod 204 can be opposite to the sampling tube head 105. A first mounting block 205 is welded to the telescopic end of the first hydraulic telescopic rod 204. A slot for vertically limiting the sampling tube 206 is provided vertically through the first mounting block 205. The top end of the sampling tube 206 can be connected to the sampling tube head 105.

[0064] like Figure 2As shown, the flushing assembly includes several second hydraulic telescopic rods 401, several flushing pipes 402, several second mounting blocks 403, and a liquid suction pump. The fixed end of the second hydraulic telescopic rod 401 is in sliding contact with the upper surface of the connecting plate 201. The axis of the second hydraulic telescopic rod is perpendicular to the vertical axis of the sampling tube head 105. A fourth slider 404 is horizontally slidably arranged in the second slide groove 202 to drive the second hydraulic telescopic rod 401 to slide horizontally along the second slide groove 202. The horizontal sliding axis of the second hydraulic telescopic rod 401 is perpendicular to the axis of the second hydraulic telescopic rod 401. The telescopic end of the second hydraulic telescopic rod 401 can be opposite to the sampling tube head 105. The second mounting block 403 is fixedly installed on the telescopic end of the second hydraulic telescopic rod 401. A groove is vertically provided on the second mounting block 403 to vertically limit the end of the flushing pipe 402. The end of the sampling tube head 105 can be connected to the top of the flushing pipe 402. The liquid suction pump is connected to the end of the flushing pipe 402 away from the groove.

[0065] like Figure 4 As shown, the lower end of the sampling tube head 105 is in the shape of an inverted frustum, and the outer wall of the lower end of the sampling tube head 105 is rounded; the upper ends of the flushing tube 402 and the sampling tube 206 can both accommodate the lower end of the sampling tube head 105.

[0066] like Figure 3 As shown, an elastic sealing membrane 601 is coaxially fixed at the upper end of both the flushing tube 402 and the sampling tube 206. The sealing membrane 601 has a cross-shaped cut 602, which is connected to the flushing tube 402 or the sampling tube 206.

[0067] In addition, the number of flushing tubes 402, first mounting blocks 205 and sampling tube heads 105 are all the same and can be matched one by one.

[0068] In this embodiment, when a compound fertilizer solution sampling and cleaning device is used, the entire compound fertilizer solution sampling and cleaning device is transferred and installed at the compound fertilizer solution production equipment. The sampling unit on the compound fertilizer solution sampling and cleaning device is opposite to the sampling port of the compound fertilizer solution production equipment. At this time, several sampling tubes 206 are first installed in the slots of the first mounting block 205 in sequence, and the first mounting block 205 limits and fixes the sampling tubes 206.

[0069] At this time, the motor 508 starts, and the power output end of the motor 508 drives the limiting slider 507 to slide along the arc-shaped slide groove 502, so that the end of the limiting slider 507 moves to the lowest end of the arc-shaped slide groove 502. At this time, the sampling tube head 105 contacts the liquid surface of the compound fertilizer solution, the negative pressure suction pump starts, and the sampling tube head 105 suctions the compound fertilizer solution. After suctioning for 1-3 seconds, the electromagnetic switch valve 106 closes the sampling tube head 105, the negative pressure suction pump stops, and the sampled compound fertilizer solution is kept in the sampling tube head 105; the power output end of the motor 508 drives the limiting slider 507 to slide along the arc-shaped slide groove 502 to the left end of the arc-shaped slide groove 502. At the side center, the sampling tube head 105 is vertically opposite the first hydraulic telescopic rod 204 and the first mounting block 205. The extension of the first hydraulic telescopic rod 204 controls the upper end of the sampling tube 206 on the first mounting block 205 to be vertically aligned with the sampling tube head 105. The motor 508 rotates slightly, causing the sampling tube head 105 to move downward, so that the sampling tube head 105 is embedded in the cut 602 of the sealing membrane 601 of the sampling tube 206. The electromagnetic switch valve 106 is opened, and the compound fertilizer solution in the sampling tube head 105 automatically falls into the sampling tube 206 under the action of gravity, completing the sampling and collection. The deformation of the tube sealing membrane 601 restores the seal on the top of the sampling tube 206.

[0070] The motor 508 continues to drive the sampling unit to rotate clockwise to the right end of the arc-shaped chute 502, and the first hydraulic telescopic rod 204 shortens, causing the first mounting block 205 and the sampling tube 206 to move back, allowing the sampling tube 206 to be retrieved. At this time, the first hydraulic telescopic rod 204 and the second mounting block 403 are vertically opposite each other, and the extension of the second hydraulic telescopic rod 401 controls the upper end of the flushing tube 402 on the second mounting block 403 to be vertically aligned with the sampling tube head 105. The motor 508 rotates slightly, causing the sampling tube head 105 to move downward, so that the sampling tube head 105 is embedded in the cut 602 of the sealing film 601 of the flushing tube 402. The liquid suction pump then cleans the tube. The cleaning solution is pumped into the flushing tube 402, and flows into the sampling tube head 105 and onto its outer wall to flush the sampling tube head 105. After flushing for 1-5 seconds, the liquid suction pump draws the cleaning solution to recover it. This quickly dries the residual cleaning solution on the sampling tube head 105, making it easier to continue sampling and reducing contamination of the compound fertilizer solution sample by the cleaning solution. When the motor 508 continues to drive the sampling unit to rotate clockwise, the sampling tube head 105 separates from the flushing tube 402, and the deformation of the tube sealing membrane 601 on the flushing tube 402 recovers to seal the top of the flushing tube 402.

[0071] In the above process, the arc-shaped slide 502 and the limiting slider 507 can cooperate with the sampling plate 104 to drive the sampling unit to rotate as a whole. At the same time, the horizontal slide rail 503, the first slider 504, the vertical slide rail 505 and the second slider 506 can restrict the position change of the sampling plate 104, so that the horizontal and vertical positions of the sampling unit can be changed without rotation. This makes it easy for the sampling unit to cooperate with the compound fertilizer solution production equipment, the sampling tube 206 and the rinsing components in sequence to perform sampling, sampling collection and rinsing operations, so that the connection between each step is smooth and the efficiency of sample absorption, sampling collection, rinsing and return can be improved.

[0072] When in use, the threaded connection between the screw 108 and the fixing block 109 can be adjusted according to the matching position of the sampling tube head 105 with the sampling tube 206 or the flushing tube 402, so that the connecting rod 101 moves vertically along the lifting sleeve 107, thereby adjusting the vertical position of the sampling tube head 105, so that the matching between the sampling tube head 105 and the sampling tube 206 or the flushing tube 402 is more precise.

[0073] According to specific usage requirements, the first sliding groove 102 on the connecting rod 101 is horizontally slidable and the sliding block 103 is locked, thereby adjusting the position of two adjacent sampling tube heads 105 on a single connecting rod 101, which facilitates sampling of compound fertilizer solution at different locations; at the same time, the first hydraulic telescopic rod 204 and the second hydraulic telescopic rod 401, which cooperate with the corresponding sampling tube head 105, can slide horizontally along the second sliding groove 202 to adjust their positions, the third slider 203 drives the first hydraulic telescopic rod 204 to slide horizontally, and the fourth slider 404 drives the second hydraulic telescopic rod 401 to slide horizontally, so that the positions of the corresponding sampling tube 206 and flushing tube 402 are adapted to the sampling tube head 105, and the overall adjustability is increased.

[0074] During sampling and rinsing, the inverted frustum-shaped structure and rounded structure at the lower end of the sampling tube head 105 make it easier to insert the sampling tube head 105 into the cut 602 of the sealing membrane 601, making it easier for the sampling tube head 105 to connect with the rinsing tube 402 and the sampling tube 206. After sampling and rinsing are completed, the elastic sealing membrane 601 can automatically rebound, so that the rinsing tube 402 and the sampling tube 206 are automatically sealed, ensuring that the rinsing tube 402 and the sampling tube 206 remain clean, reducing the interference of the external environment on the sample or the cleanliness of the rinsing tube 402.

[0075] The entire sampling and cleaning equipment can perform multi-point sampling of compound fertilizer solution in the compound fertilizer solution production equipment, and can simultaneously acquire test data of multiple samples, which facilitates obtaining more accurate test data. The data can be cross-referenced to improve the accuracy of the test and also improve the testing efficiency.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A compound fertilizer solution sampling and cleaning device, comprising a sampling platform and a support frame, wherein the support frame is fixedly installed on the sampling platform, characterized in that, Also includes: Several sampling units; Several sampling tubes, each of which can be connected to a sampling unit; A position control component for controlling the position of a sampling tube, wherein the position control component is detachably connected to the sampling tube and connected to a support frame; Several rinsing components are provided, each of which can be connected to a sampling unit and is connected to a support frame. A power component that drives the sampling unit in sequence to be opposite the sampling tube and the rinsing assembly, and the power component is detachably connected to the support frame.

2. The compound fertilizer solution sampling and cleaning device as described in claim 1, characterized in that, The power assembly includes: Mounting plate, which is vertically fixed on the support frame, and an arc-shaped groove is provided on the side of the mounting plate away from the support frame; Several horizontal slide rails are horizontally fixedly installed on the mounting plate; Vertical slide rail; A first slider that slides along a horizontal slide rail, and the first slider is detachably connected to a vertical slide rail; A second slider that slides along a vertical slide rail, and the second slider is detachably connected to the sampling unit; A limiting slider, one end of which is slidably connected to an arc-shaped groove, and the other end of which is located at the center of the longitudinal section profile of the arc-shaped groove. The end of the limiting slider near the arc-shaped groove is rotatably connected to the sampling unit. The electric motor is fixedly connected to the side of the mounting plate near the support frame, and the power output end of the electric motor passes through the support frame and is fixedly connected to the end of the limiting slider away from the arc-shaped groove.

3. The compound fertilizer solution sampling and cleaning device as described in claim 2, characterized in that, The longitudinal section of the arc-shaped chute is three-quarters of a circle. One end of the arc-shaped chute is located at the bottom of the overall arc-shaped chute profile, and the other end of the arc-shaped chute is opposite to the middle of the overall arc-shaped chute profile. When the end of the limiting slider slides to the bottom of the arc-shaped chute, the sampling unit takes a sample. When the end of the limiting slider slides to the middle of the arc-shaped chute, the sampling unit is directly opposite the rinsing assembly or sampling tube. The horizontal slide rail is located on the upper or lower side of the arc-shaped slide groove.

4. The compound fertilizer solution sampling and cleaning device as described in claim 3, characterized in that, The sampling unit includes: A sampling plate, wherein the sampling plate is set vertically; A plurality of sampling components are installed on one side of a sampling plate and arranged sequentially along the horizontal direction of the sampling plate. The other side of the sampling plate is rotatably connected to a limiting slider and fixedly connected to a first slider. The sampling component includes: Connecting rod; Several sampling tube heads are vertically mounted on a connecting rod, with the suction end of the sampling tube head facing downwards; A lifting module that controls the lifting position of the connecting rod, wherein the lifting module is fixedly connected to the sampling plate; A negative pressure suction pump, which is connected to the sampling tube head; An electromagnetic switch valve is fixedly installed at the middle of the sampling tube head.

5. The compound fertilizer solution sampling and cleaning device as described in claim 4, characterized in that, The connecting rod is provided with a sliding block and a first sliding groove for the sliding block to slide horizontally. The connecting rod and the sliding block are detachably connected, and the sampling tube head is fixedly connected to the sliding block or the connecting rod.

6. The compound fertilizer solution sampling and cleaning device as described in claim 5, characterized in that, The position control component includes: A connecting plate, which is horizontally and detachably installed on the side of the support frame near the sampling unit; A plurality of first hydraulic telescopic rods are provided. The fixed end of the first hydraulic telescopic rod slides in contact with the upper surface of the connecting plate. The axis of the first hydraulic telescopic rod is perpendicular to the vertical axis of the sampling tube head. The connecting plate is provided with a second sliding groove. A third slider is horizontally slidably arranged in the second sliding groove to drive the first hydraulic telescopic rod to slide horizontally along the second sliding groove. The horizontal sliding axis of the first hydraulic telescopic rod is perpendicular to the axis of the first hydraulic telescopic rod. The telescopic end of the first hydraulic telescopic rod can be opposite to the sampling tube head. A plurality of first mounting blocks are fixedly mounted on the telescopic end of the first hydraulic telescopic rod. The first mounting blocks are vertically provided with a slot for vertically limiting the sampling tube, and the top end of the sampling tube can be connected to the sampling tube head.

7. The compound fertilizer solution sampling and cleaning device as described in claim 6, characterized in that, The flushing assembly includes: A plurality of second hydraulic telescopic rods, the fixed end of the second hydraulic telescopic rods slidingly contacting the upper surface of the connecting plate, the axis of the second hydraulic telescopic rods being perpendicular to the vertical axis of the sampling tube head, a fourth slider being horizontally slidably arranged in the second slide groove to drive the second hydraulic telescopic rods to slide horizontally along the second slide groove, the horizontal sliding axis of the second hydraulic telescopic rods being perpendicular to the axis of the second hydraulic telescopic rods, and the telescopic end of the second hydraulic telescopic rods being opposite to the sampling tube head; Several flushing tubes; Several second mounting blocks are fixedly mounted on the telescopic end of the second hydraulic telescopic rod. The second mounting blocks are vertically provided with a groove for vertically limiting the end of the flushing pipe. The end of the sampling tube head can be connected to the top of the flushing pipe. A liquid suction pump is connected to the end of the flushing pipe away from the groove.

8. The compound fertilizer solution sampling and cleaning device as described in claim 7, characterized in that, The lower end of the sampling tube head is in the shape of an inverted frustum, and the outer wall of the lower end of the sampling tube head is rounded. The upper ends of both the flushing tube and the sampling tube can be used to embed the lower end of the sampling tube head.

9. The compound fertilizer solution sampling and cleaning device as described in claim 8, characterized in that, Both the flushing tube and the sampling tube have an elastic sealing film fixedly installed coaxially at their upper ends. The sealing film has a cross-shaped cut that communicates with the flushing tube or the sampling tube.

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