Moisture meter with self-cleaning structure

Abstract

The invention discloses a moisture meter with a self-cleaning structure, belongs to the technical field of moisture meters, and aims to solve the problems that when a charging tray is taken down manually, materials are easy to scatter if collision or sliding occurs, so that a measuring part of equipment is corroded, and the service life of the equipment is shortened. The device comprises a main body instrument and a rotating cover plate rotationally mounted on one side of the upper portion of the main body instrument, automatic discharging of a material disc can be achieved, meanwhile, the material disc can be stably dumped, meanwhile, the material disc is moved to an independent discharging space on one side of the main body instrument through a moving mechanism, and the material disc can be isolated from a measuring area; the possibility that materials are scattered to pollute and corrode measuring equipment is avoided, the service life of the equipment is guaranteed, manual contact is avoided, the possibility of artificial pollution and operation errors is avoided, meanwhile, the discharging time can be shortened, the follow-up measuring precision and efficiency can be guaranteed, the treatment that the inner wall of the material disc is sprayed and washed while waste liquid is recycled can be achieved, and the working efficiency is improved. And the determination precision and cleanliness can be ensured.

Description

Technical Field

[0001] This invention relates to the field of moisture analyzer technology, specifically to a moisture analyzer with a self-cleaning structure. Background Technology

[0002] A moisture analyzer is a commonly used laboratory testing device that can detect the water content of various solid, liquid, and gas samples. During the testing process, a special tray is used to hold the sample, which is then placed in the testing chamber and the top cover is sealed. The sample is heated to evaporate the water, and the water content is calculated by measuring the mass difference before and after heating, thus ensuring the accuracy of the moisture content detection.

[0003] Currently, moisture analyzers often require manual removal of the sample tray from the equipment before sample processing. However, when manually handling the small tray, collisions or slips can easily cause material to spill onto the testing area, making it difficult to clean. This can lead to corrosion of the testing components, shorten the equipment's lifespan, and affect measurement accuracy. Furthermore, for viscous, powdery, or oily samples, residues can easily remain on the tray's inner wall after being poured out. These residues not only interfere with the accuracy of subsequent sample testing, leading to inaccurate results, but can also breed bacteria or cause corrosion of equipment components, further shortening the equipment's lifespan.

[0004] To address the above issues, a moisture analyzer with a self-cleaning structure is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a moisture analyzer with a self-cleaning structure. By using this device, the problems mentioned above can be solved, such as the risk of material spillage when manually removing the material tray due to collision or slippage, which can cause corrosion of the measuring components and shorten the service life of the equipment. In addition, for viscous or powdery samples, inadequate cleaning can easily leave residues, affecting the detection accuracy and service life of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a moisture analyzer with a self-cleaning structure, comprising a main body and a rotating cover plate rotatably mounted on one side above the main body, an installation cover mounted on the top of the main body, a control panel mounted on the front side of the main body, a weighing pan mounted on one side of the upper surface of the main body, a material tray disposed above the weighing pan, and a heating coil fixed on one side of the upper surface of the installation cover. A moving mechanism is provided on one side of the weighing pan, and a clamping mechanism is installed at the output end of the moving mechanism. A gear is installed on one side of the surface of the clamping mechanism. Two sets of racks are fixed on the other side of the upper surface of the main body instrument. A material discharge port is opened on the surface of the main body instrument. A collection drawer is provided below the material discharge port. An adjustment mechanism is installed on one side of the interior of the main body instrument, and a cleaning mechanism is provided inside the main body instrument. Fixed push plates are provided on both sides of the exterior of the weighing pan, and the fixed push plates are fixed on the main body instrument.

[0007] Furthermore, the moving mechanism includes a motor fixed to one side of the main body surface, and a drive wheel is fixed to the output end of the motor. Two sets of belts are connected to both sides of the drive wheel, and rotating wheels are connected to the two ends of the two sets of belts respectively. The drive wheel is connected to the rotating wheels through the belts. A lead screw is fixed to one end of each of the two sets of rotating wheels.

[0008] Furthermore, the clamping mechanism includes sliding blocks that are threadedly connected to two sets of lead screws respectively, and a rotating shaft is rotatably mounted on the upper center of the sliding blocks. One end of the rotating shaft is fixed to a clamping seat, and the other end of the rotating shaft is fixed to a gear. A clamping plate is elastically mounted on the front side inside the clamping seat.

[0009] Furthermore, the sliding block includes a fixed sleeve disposed outside the rotating shaft, and a spring is fixedly disposed inside the lower part of the fixed sleeve, and a mounting plate is fixedly disposed at the bottom of the spring.

[0010] Furthermore, the clamping seat includes a mounting cavity disposed on the rear side of the clamping plate, and a second spring is fixed inside one side of the mounting cavity, and a movable disc is fixed at the front end of the second spring. The movable disc is fixedly connected to the clamping plate, and the clamping plate is elastically connected to the mounting cavity through the movable disc and the second spring. An inclined block is fixed in the middle of the surface of the movable disc.

[0011] Furthermore, the adjustment mechanism includes an electric push cylinder fixed inside one side of the main body, and a fixed plate is fixed to the output end of the electric push cylinder. A second motor is fixed above the fixed plate, and a support frame is fixed to the output of the second motor.

[0012] Furthermore, a motor is fixed to the lower end of one end of the support frame, and a rotating frame is fixed to the output end of the motor.

[0013] Furthermore, the cleaning mechanism includes a water pump located on one side of the electric push cylinder, and the output end of the water pump is connected to a water inlet pipe, the output end of which is equipped with a spray nozzle.

[0014] Furthermore, a suction pump is provided on one side of the water supply pump, and the input end of the suction pump is connected to an outlet pipe, and the input end of the outlet pipe is connected to a suction port.

[0015] Furthermore, a bonding cover is fixed on one side of the upper part of the rotating frame. The bonding cover includes a front bonding plate that is connected to the water inlet pipe, and a middle plate is fixed on one side of the front bonding plate. The middle plate is connected to the water inlet, and a water guide hole is opened on the lower surface of the middle plate. A rear fixing plate is fixed on one side of the middle plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention enables automatic material unloading from the material tray while simultaneously allowing the tray to tilt smoothly. A moving mechanism then moves the material tray to an independent unloading space on one side of the main instrument, isolating it from the measurement area. This prevents material spillage from contaminating and corroding the measuring equipment, ensuring the equipment's lifespan. Furthermore, the absence of human contact avoids human contamination and operational errors, while also shortening unloading time, which helps ensure the accuracy and efficiency of subsequent measurements.

[0017] 2. After the material tray of the present invention is flipped, it will have a reciprocating elastic vibration effect downward. The vibration reduces the adhesion between the material and the bottom of the material tray. At the same time, the opening of the material tray faces downward after flipping, which is conducive to the automatic falling of the material, making the unloading more thorough and reducing the possibility of material residue. It can also ensure the efficiency and effectiveness of subsequent cleaning of the material tray.

[0018] 3. This invention enables simultaneous spraying and rinsing of the inner wall of the material tray while simultaneously recovering waste liquid. This is suitable for processing viscous, powdery, or oily samples, preventing incomplete cleaning of samples adhering to the material tray, which can easily lead to bacterial growth and affect subsequent measurements. Simultaneously, the negative pressure suction in real time avoids the problem of the material becoming stickier with repeated wiping. While ensuring cleaning effectiveness, the timely removal of waste liquid also greatly reduces the residue and random diffusion of rinsing solution, preventing water droplets from easily dripping from the material tray surface or being difficult to dry in time. Furthermore, the timely removal of waste liquid helps maintain the cleanliness of the device, preventing rinsing solution from spreading inside the main instrument and contaminating the instrument and internal equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the entire mounting cover of the present invention after it has been removed; Figure 3 This is a three-dimensional structural diagram of the motor of the present invention; Figure 4 This is a three-dimensional structural diagram of the gear moving in front of the rack according to the present invention; Figure 5 This is a three-dimensional structural diagram of the gear moving onto the rack according to the present invention; Figure 6This is a schematic diagram of the three-dimensional structure of the material tray after it is flipped according to the present invention; Figure 7 This is a cross-sectional view of the internal clamping plate separation structure of the mounting cavity of the present invention; Figure 8 This is a three-dimensional structural diagram of the fixed push plate pressing the movable disc of the present invention; Figure 9 This is a three-dimensional structural diagram of the material tray after it is flipped onto the collection drawer according to the present invention; Figure 10 This is a three-dimensional structural diagram of the bonding cover of the present invention after it rotates below the material tray; Figure 11 This is a schematic diagram of the three-dimensional structure of the bonding cover separation according to the present invention.

[0020] In the diagram: 1. Main body; 2. Rotating cover plate; 3. Weighing pan; 4. Moving mechanism; 41. Motor 1; 42. Drive wheel; 43. Belt; 44. Rotating wheel; 45. Lead screw; 5. Clamping mechanism; 51. Sliding block; 511. Mounting top plate; 512. Spring 1; 513. Fixing sleeve; 52. Rotating shaft; 53. Clamping seat; 531. Mounting cavity; 532. Spring 2; 533. Movable disc; 534. Inclined block; 54. Clamping plate; 6. Gear; 7. Rack; 8. Adjusting mechanism; 81. Electric push cylinder; 82. Fixed plate; 83. Motor II; 84. Support frame; 85. Motor III; 86. Rotating frame; 9. Cleaning mechanism; 91. Water supply pump; 92. Water inlet pipe; 93. Spray head; 94. Water suction pump; 95. Water outlet pipe; 96. Water suction port; 97. Adhesion cover; 971. Front adhesion plate; 972. Middle plate; 973. Rear fixed plate; 974. Water guide hole; 10. Material tray; 20. Material drop port; 30. Collection drawer; 40. Fixed push plate; 50. Mounting cover; 60. Heating coil; 70. Control panel. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] To address the technical problem of material spillage caused by collisions or slippage when manually removing the material tray, which can lead to corrosion of the equipment's measuring components and shorten its lifespan, such as... Figure 1 - Figure 6 As shown, the following preferred technical solutions are provided: Figure 1As shown, a moisture analyzer with a self-cleaning structure includes a main body 1 and a rotating cover 2 rotatably mounted on one side above the main body 1. A mounting cover 50 is installed on the top of the main body 1, and a control panel 70 is installed on the front surface of the main body 1. The main body 1 is an existing moisture analyzer based on the loss on drying method; its specific measurement principle will not be elaborated here. A weighing pan 3 is installed on one side of the upper surface of the main body 1, and a material tray 10 is positioned above the weighing pan 3. The material tray 10 is placed on the weighing pan 3 during sample measurement. Figure 2 The image shows the state of the material tray 10 after it has been removed from the weighing pan 3. The inner surface of the material tray 10 is made of Teflon, which reduces the possibility of the sample material sticking to the material tray 10. A heating coil 60 is fixed to one side of the upper surface of the mounting cover 50. When the material tray 10 is placed on the weighing pan 3 for measurement, the heating coil 60 is located outside the material tray 10. This allows the sample material to be measured to be added to the material tray 10, and the rotating cover 2 to be closed. The sample is heated by the heating coil 60 to evaporate the moisture. The moisture content is calculated by measuring the mass difference before and after heating. Figure 2 and Figure 3 As shown, a moving mechanism 4 is provided on one side of the weighing pan 3, and a clamping mechanism 5 is installed at the output end of the moving mechanism 4. After the sample is measured, the clamping mechanism 5 can be moved from left to right by the moving mechanism 4. When the clamping mechanism 5 moves, it will clamp and fix the material pan 10, so that the clamping mechanism 5 can drive the material pan 10 to move to the right together.

[0023] A gear 6 is mounted on one side of the surface of the clamping mechanism 5, and two sets of racks 7 are fixed on the other side of the upper surface of the main body 1. A material discharge port 20 is provided on the surface of the main body 1, and a collection drawer 30 is located below the material discharge port 20. The collection drawer 30 is a drawer-type sliding installation inside one side of the main body 1. The material discharge port 20 is located between the two sets of racks 7, and the racks 7 are on the moving path of the gear 6. Figure 3 and Figure 4 As shown, the top surface of rack 7 is slightly higher than the bottom surface of gear 6. At the same time, the clamping mechanism 5 and the moving mechanism 4 can move up and down elastically. When gear 6 moves to just mesh with rack 7, the height difference between rack 7 and gear 6 will cause gear 6, clamping mechanism 5, and material tray 10 held by clamping mechanism 5 to be lifted slightly. Currently, after the moisture content of sample material is measured, it is often necessary to manually remove material tray 10 from the main instrument 1 and then process the sample in material tray 10. However, if a collision or slip occurs when manually picking up the small material tray 10 placed in the main instrument 1, the material is easily spilled into the measurement area of ​​the main instrument 1 and is difficult to clean. This will cause corrosion of the measuring components of the equipment, shorten the service life of the equipment, and affect the accuracy of the measurement. At the same time, manual handling of materials is often quite troublesome.

[0024] The moving mechanism 4 continues to drive the clamping mechanism 5, material tray 10, and gear 6 to move to the right on the rack 7. The meshing between the rack 7 and gear 6 allows gear 6 to rotate clockwise during movement. When gear 6 disengages from rack 7, it rotates 180 degrees. This rotation simultaneously drives the clamping mechanism 5 and material tray 10 to rotate 180 degrees as well. The rotation of material tray 10 automatically pours out the measured sample material, which is then collected in the collection drawer 30. The inner center of the main instrument 1 is connected to the collection drawer... A partition is provided between the drawers 30, so that the collection drawer 30 can be separated from the measuring space on the left side of the main instrument 1, avoiding the impact of the spilled material on the equipment in the measuring space. The material tray 10 is rotated and tilted by the rack 7 and gear 6, which can realize automatic feeding and also make the material tray 10 tilt smoothly. At the same time, the moving mechanism 4 moves the material tray 10 to an independent unloading space on the side of the main instrument 1, which is isolated from the measuring area, avoiding the problem of material spillage contaminating and corroding the measuring equipment, ensuring the service life of the equipment, and eliminating human contact, avoiding human contamination and operational errors. It can also shorten the unloading time, which is conducive to ensuring the accuracy and efficiency of subsequent measurements.

[0025] As described above, when the material tray 10 is slightly lifted and then flipped for unloading, it is flipped exactly 180 degrees. At this time, the separation of gear 6 and rack 7 causes gear 6, clamping mechanism 5, and material tray 10 to move down and reset. Simultaneously, the moving mechanism 4 ensures that the front section of gear 6 and rack 7 moves at a uniform and slow speed, allowing material tray 10 to flip and tilt smoothly. When gear 6 moves to the end section of rack 7, the moving mechanism 4 accelerates its movement, causing gear 6 and rack 7 to separate quickly. This allows material tray 10 to quickly move down and reset, resulting in a reciprocating elastic vibration effect. This vibration reduces the adhesion between the material and the bottom of material tray 10. Furthermore, after flipping, the opening of material tray 10 faces downwards, facilitating the automatic falling of material and making unloading more thorough, reducing the possibility of material residue. This also ensures the efficiency and effectiveness of subsequent cleaning of material tray 10.

[0026] like Figure 9As shown, an adjustment mechanism 8 is installed on one side of the main body instrument 1. The adjustment mechanism 8 is located in the space below the material inlet 20. The main body instrument 1 is also equipped with a cleaning mechanism 9. After the material tray 10 is tilted and the sample material is poured out, sticky samples, powdery samples or samples containing oil are easy to leave residues on the inner wall of the material tray 10. These residues will not only interfere with the accuracy of subsequent sample testing and cause result deviations, but also require manual disassembly and cleaning by staff, which will make the operation cumbersome and time-consuming. Incomplete cleaning may also breed bacteria or cause corrosion of equipment parts, shortening the service life of the equipment. At this time, after the material tray 10 is tilted and poured out, the cleaning mechanism 9, which is located on the outside of the collection drawer 30, is first rotated to the bottom of the material tray 10 using the adjustment mechanism 8, and then the cleaning mechanism 9 is pushed up so that the upper surface of the cleaning mechanism 9 is in contact with the inner wall of the material tray 10.

[0027] The cleaning mechanism 9 is then rotated 180 degrees in both directions along the inner wall of the material tray 10. The cleaning mechanism 9 is equipped with an integrated structure for rinsing and negative pressure collection. When the cleaning mechanism 9 rotates, it can simultaneously spray and rinse the inner wall of the material tray 10 while collecting waste liquid. This is used to process viscous samples, powdery samples, or samples containing oils, avoiding the problem of samples adhering to the material tray 10 and not being thoroughly cleaned, which can easily breed bacteria and affect subsequent measurements. At the same time, the atomized droplets sprayed from the cleaning mechanism 9 penetrate and destroy the adhesion, and the negative pressure suction removes the sample in real time, which can avoid the problem of the more you wipe, the stickier it becomes. While ensuring the cleaning effect, the timely removal of waste liquid can also greatly reduce the residue and random diffusion of rinsing liquid, preventing water droplets on the surface of the material tray 10 from dripping easily or being difficult to dry in time. At the same time, the timely removal of waste liquid also helps to keep the inside of the device clean and prevents the rinsing liquid from spreading inside the main instrument 1 and contaminating the instrument and internal equipment.

[0028] Fixed push plates 40 are provided on both sides of the weighing pan 3, and the fixed push plates 40 are fixed on the main body instrument 1. After the material pan 10 is rinsed and cleaned, the adjusting mechanism 8 retracts the cleaning mechanism 9. Then, the moving mechanism 4 drives the gear 6, the clamping mechanism 5 and the material pan 10 to move in opposite directions, so that the material pan 10 flips upward again when it passes the rack 7. When the material pan 10 is moved above the weighing pan 3, the clamping mechanism 5 will be squeezed by the fixed push plates 40, so that the clamping mechanism 5 will loosen and the material pan 10 will fall on the weighing pan 3 for subsequent weighing measurement. At the same time, before the measurement, the heating coil 60 can be used to automatically dry the material pan 10, so that the material pan 10 can be in a good dry state for the next sample material measurement.

[0029] The moving mechanism 4 includes a motor 41 fixed to one side of the surface of the main body instrument 1, and a drive wheel 42 is fixed to the output end of the motor 41. Two sets of belts 43 are connected to both sides of the drive wheel 42, and rotating wheels 44 are connected to the two ends of the two sets of belts 43 respectively. The drive wheel 42 is connected to the rotating wheels 44 through the belts 43. A lead screw 45 is fixed to one end of each of the two sets of rotating wheels 44. The motor 41 can drive the rotating wheels 44 and the lead screw 45 to rotate by using the drive wheel 42 and the belts 43.

[0030] The clamping mechanism 5 includes sliding blocks 51 threadedly connected to two sets of lead screws 45. When the two sets of lead screws 45 rotate synchronously, the sliding blocks 51 can move along the lead screws 45 using the threaded structure. A rotating shaft 52 is rotatably mounted on the upper center of the sliding blocks 51. One end of the rotating shaft 52 is fixed to a clamping seat 53, and the other end of the rotating shaft 52 is fixed to a gear 6. A clamping plate 54 is elastically mounted on the front side inside the clamping seat 53. After the sample is measured, when the sliding blocks 51 move along the lead screws 45, the clamping plate 54 can clamp and fix the material tray 10, so that the material tray 10 can be clamped and fixed by the sliding blocks 51. The rotating shaft 52 and the sliding block 51 are damped rotating shafts, and the damping force is greater than the weight of the material tray 10 and the material inside the material tray 10, as well as the inertial force when the material tray 10 vibrates, and greater than the impact force of the material tray 10 during subsequent spraying. This prevents the material tray 10 from rotating randomly when moving and rinsing, and also allows the material tray 10 to return to a horizontal position when it flips and resets, without any positional deviation, so that it can be used next time. At the same time, the damping force is less than the rotational force when the gear 6 and the rack 7 mesh and move, so that when the sliding block 51 drives the gear 6 to move from the rack 7.

[0031] Based on the above, the material tray 10 can be flipped over, allowing the sample material to be poured into the collection drawer 30 for collection. The material tray 10 is then moved by a transmission driven by motor 41. During this movement, the material tray 10 is rotated and tilted using rack 7 and gear 6. This achieves automatic feeding and stable tilting of the material tray 10. Simultaneously, the material tray 10 is moved to an independent unloading space on one side of the main instrument 1, isolating it from the measurement area. This prevents material spillage and potential contamination or corrosion of the measuring equipment, ensuring the equipment's lifespan. Furthermore, the absence of human contact avoids potential contamination and operational errors, and shortens unloading time, thus improving the accuracy and efficiency of subsequent measurements.

[0032] To address the technical problem of incomplete material disposal leading to residue, which affects cleaning effectiveness and efficiency, such as... Figure 1 - Figure 8 As shown, the following preferred technical solutions are provided: The sliding block 51 includes a fixed sleeve 513 disposed outside the rotating shaft 52. The fixed sleeve 513 is connected to the rotating shaft 52 with damping rotation. A spring 512 is fixed inside the lower part of the fixed sleeve 513, and a mounting plate 511 is fixed to the bottom of the spring 512. The spring 512 allows the fixed sleeve 513 and the mounting plate 511 to have an elastic ability to move up and down. The top surface of the rack 7 is slightly higher than the bottom surface of the gear 6. When the gear 6 moves to just mesh with the rack 7, the height difference between the rack 7 and the gear 6 allows the sliding block 51 to remain in a fixed position due to the constraint of the lead screw 45. Meanwhile, the gear 6, rotating shaft 52, fixed sleeve 513, clamping seat 53, and clamping plate 54 are lifted upward by the rack 7, which stretches the spring 512. At the same time, the material tray 10 clamped by the clamping plate 54 will be lifted slightly.

[0033] Simultaneously, driven by the servo motor 41, the gear 6 and the front section of the rack 7 move at a relatively slow and uniform speed, allowing the material tray 10 to be smoothly flipped and tilted. When the gear 6 moves to the end of the rack 7, the motor 41 will accelerate its rotation, ultimately causing the gear 6 and rack 7 to quickly separate. Utilizing the rebound of the spring 512, the gear 6 and the material tray 10 can also quickly reset and move downward, giving the material tray 10 a reciprocating elastic vibration effect. This reciprocating vibration reduces the adhesion between the material and the material tray 10. At the same time, after the material tray 10 is flipped, the opening faces downward, which is conducive to the automatic falling of the material, making the unloading more thorough, reducing the possibility of material residue, and also ensuring the efficiency and effectiveness of subsequent cleaning of the material tray 10.

[0034] The clamping seat 53 includes a mounting cavity 531 located behind the clamping plate 54. A second spring 532 is fixed to one side of the interior of the mounting cavity 531, and a movable disc 533 is fixed to the front end of the second spring 532. The movable disc 533 is fixedly connected to the clamping plate 54, and the clamping plate 54 is elastically connected to the mounting cavity 531 via the movable disc 533 and the second spring 532. A wedge 534 is fixed to the center of the surface of the movable disc 533. Figure 8As shown, when the material tray 10 is placed on the weighing pan 3 for weighing and measurement, the movable tray 533 and the inclined block 534 will be slightly squeezed by the fixed push plate 40, which will compress the second spring 532. This will cause the clamping plate 54 to retract into the mounting cavity 531, allowing the clamping plate 54 to loosen its grip on the material tray 10 without being disturbed by the clamping force. This will allow the material tray 10 to fall onto the weighing pan 3 for accurate weighing and measurement. After the measurement is completed, the motor 41 will eventually cause the clamping seat 53 and the clamping plate 54 to make a slight movement. The fixed push plate 40 will then lose its squeezing of the inclined block 534 and the movable tray 533. This will cause the clamping plate 54 to move forward again under the action of the second spring 532 to clamp and fix the material tray 10, allowing the material tray 10 to be clamped and moved. At the same time, the clamping surface of the clamping plate 54 is an arc surface, so that the movement of the clamping plate 54 within the range of motion of the clamping plate 54 and the material tray 10 will not affect the clamping of the material tray 10.

[0035] To address the technical problem of residue buildup in viscous or powdery samples that can affect testing accuracy and equipment lifespan due to inadequate cleaning, such as... Figure 1 - Figure 2 as well as Figure 9 - Figure 11 As shown, the following preferred technical solutions are provided: The adjustment mechanism 8 includes an electric push cylinder 81 fixed inside one side of the main body 1, and a fixed plate 82 is fixed to the output end of the electric push cylinder 81. A second motor 83 is fixed above the fixed plate 82. The electric push cylinder 81, which is servo-type, can move the fixed plate 82 and the second motor 83 up and down. A support frame 84 is fixed to the output end of the second motor 83. The second motor 83, which is servo-type, can drive the support frame 84 to rotate around the electric push cylinder 81.

[0036] A motor 85 is fixed to one end of the support frame 84, and a rotating frame 86 is fixed to the output end of the motor 85. The servo-type motor 85 can drive the rotating frame 86 to rotate.

[0037] The cleaning mechanism 9 includes a water pump 91 located on one side of the electric push cylinder 81, and the output end of the water pump 91 is connected to a water inlet pipe 92. The output end of the water inlet pipe 92 is equipped with a spray head 93. The water pump 91 is a high-pressure water pump, and the spray head 93 is an atomizing nozzle. The water pump 91 can ultimately atomize and spray the cleaning water from outside the equipment from the spray head 93.

[0038] A suction pump 94 is provided on one side of the water supply pump 91, and the input end of the suction pump 94 is connected to the outlet pipe 95. The input end of the outlet pipe 95 is connected to the suction port 96. The suction pump 94 is a high-pressure suction pump, which can use the outlet pipe 95 to draw water from the suction port 96 under negative pressure. Both the inlet pipe 92 and the outlet pipe 95 are flexible hoses of a certain length, which can meet the subsequent rotation adjustment.

[0039] A bonding cover 97 is fixed on one side of the upper part of the rotating frame 86. The bonding cover 97 can rotate together with the rotating frame 86. The bonding cover 97 includes a front bonding plate 971 that is connected to the water inlet pipe 92. A middle plate 972 is fixed on one side of the front bonding plate 971. The middle plate 972 is connected to the water inlet 96. A water guide hole 974 is opened on the lower surface of the middle plate 972. A rear fixing plate 973 is fixed on one side of the middle plate 972. After the front bonding plate 971, the middle plate 972 and the rear fixing plate 973 are fixed, two chambers separated by the middle plate 972 can be formed. The spray head 93 is located in one chamber and the water inlet 96 is located in the other chamber, forming the effect of spraying in one chamber and absorbing in the other chamber.

[0040] After the material tray 10 is tilted and overturned, the rotation of the aforementioned motor 83 can rotate the bonding cover 97 to be directly below the material tray 10, as follows: Figure 9 and Figure 10 As shown, the bonding cover 97 is then pushed up by the electric pusher cylinder 81, so that the upper surface of the bonding cover 97 is in contact with the inner wall of the material tray 10. Then, the bonding cover 97 is rotated 180 degrees forward and backward along the inner wall of the material tray 10 by the motor 85. After the upper surface of the bonding cover 97 is in contact with the material tray 10, a small gap is left, which is conducive to the subsequent negative pressure suction. A small amount of water vapor during spraying overflows from the small gap, and the impact on the device is negligible.

[0041] When the bonding cover 97 rotates, the high-pressure atomized spray from the water nozzle 93 impacts and breaks down the adhesion of the dirt. The water then flows through the water guide hole 974. The inner bottom surface of the front bonding plate 971 is inclined, allowing water falling into the front bonding plate 971 to flow into one side of the middle plate 972 via the water guide hole 974. The negative pressure suction in the suction port 96 then removes the contaminated wastewater in real time, which is then discharged outside the equipment by the suction pump 94. This process allows for simultaneous spraying and rinsing of the inner wall of the material tray 10, while simultaneously recovering wastewater. This is suitable for treating viscous, powdery, or oily samples, preventing samples from adhering to the material tray 10 and causing incomplete cleaning, which can lead to bacterial growth. To prevent bacteria from growing and affecting subsequent measurements, the negative pressure in the suction port 96 removes the liquid in real time, avoiding the problem of the liquid becoming stickier with wiping. While ensuring the cleaning effect, the timely removal of waste liquid also greatly reduces the residue and random spread of rinsing liquid, preventing water droplets on the surface of the material tray 10 from dripping easily or being difficult to dry in time. At the same time, the timely removal of waste liquid also helps to keep the device clean and prevents the rinsing liquid from spreading into the main instrument 1 and contaminating the instrument and internal equipment. After spray cleaning, the bonding cover 97 can be rotated back to the outside of the collection drawer 30 by the motor 83 and the electric push cylinder 81, so as to avoid obstructing the collection drawer 30 for subsequent cleaning.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A moisture meter with a self-cleaning structure, comprising a main body (1) and a rotating cover (2) rotatably mounted on one side above the main body (1), wherein a mounting cover (50) is mounted above the main body (1), and a control panel (70) is mounted on the front side of the surface of the main body (1), characterized in that: A weighing pan (3) is installed on one side of the upper surface of the main instrument (1), and a material pan (10) is provided above the weighing pan (3). A heating coil (60) is fixed on one side of the upper surface of the mounting cover (50). A moving mechanism (4) is provided on one side of the weighing pan (3), and a clamping mechanism (5) is installed at the output end of the moving mechanism (4). A gear (6) is installed on one side of the surface of the clamping mechanism (5). Two sets of racks (7) are fixed on the other side of the upper surface of the main instrument (1). A material discharge port (20) is opened on the surface of the main instrument (1). A collection drawer (30) is provided below the material discharge port (20). An adjustment mechanism (8) is installed on one side of the interior of the main instrument (1). A cleaning mechanism (9) is provided inside the main instrument (1). Fixed push plates (40) are provided on both sides of the outer surface of the weighing pan (3), and the fixed push plates (40) are fixed on the main instrument (1).

2. A moisture analyzer with a self-cleaning structure according to claim 1, characterized in that: The moving mechanism (4) includes a motor (41) fixed on one side of the surface of the main body (1), and a drive wheel (42) is fixed at the output end of the motor (41). Two sets of belts (43) are connected to both sides of the drive wheel (42), and rotating wheels (44) are connected to the two ends of the two sets of belts (43). The drive wheel (42) is connected to the rotating wheel (44) through the belts (43). A lead screw (45) is fixed at one end of each of the two sets of rotating wheels (44).

3. A moisture analyzer with a self-cleaning structure according to claim 2, characterized in that: The clamping mechanism (5) includes a sliding block (51) threadedly connected to two sets of lead screws (45), and a rotating shaft (52) is rotatably mounted on the upper center of the sliding block (51). One end of the rotating shaft (52) is fixed with a clamping seat (53), and the other end of the rotating shaft (52) is fixed with a gear (6). A clamping plate (54) is elastically mounted on the front side inside the clamping seat (53).

4. A moisture analyzer with a self-cleaning structure according to claim 3, characterized in that: The sliding block (51) includes a fixed sleeve (513) disposed outside the rotating shaft (52), and a spring (512) is fixed inside the lower part of the fixed sleeve (513), and a mounting plate (511) is fixed at the bottom of the spring (512).

5. A moisture analyzer with a self-cleaning structure according to claim 3, characterized in that: The clamping seat (53) includes a mounting cavity (531) located on the rear side of the clamping plate (54), and a second spring (532) is fixed inside one side of the mounting cavity (531), and a movable disc (533) is fixed at the front end of the second spring (532). The movable disc (533) is fixedly connected to the clamping plate (54), and the clamping plate (54) is elastically connected to the mounting cavity (531) through the movable disc (533) and the second spring (532). A wedge (534) is fixed in the middle of the surface of the movable disc (533).

6. A moisture analyzer with a self-cleaning structure according to claim 1, characterized in that: The adjustment mechanism (8) includes an electric push cylinder (81) fixed inside one side of the main body (1), and a fixed plate (82) is fixed at the output end of the electric push cylinder (81). A second motor (83) is fixed above the fixed plate (82), and a support frame (84) is fixed at the output end of the second motor (83).

7. A moisture analyzer with a self-cleaning structure according to claim 6, characterized in that: A motor (85) is fixed below one end of the support frame (84), and a rotating frame (86) is fixed at the output end of the motor (85).

8. A moisture analyzer with a self-cleaning structure according to claim 7, characterized in that: The cleaning mechanism (9) includes a water pump (91) located on one side of the electric push cylinder (81), and the output end of the water pump (91) is connected to a water inlet pipe (92), and the output end of the water inlet pipe (92) is equipped with a spray head (93).

9. A moisture analyzer with a self-cleaning structure according to claim 8, characterized in that: A suction pump (94) is provided on one side of the water supply pump (91), and the input end of the suction pump (94) is connected to the outlet pipe (95), and the input end of the outlet pipe (95) is connected to the suction port (96).

10. A moisture analyzer with a self-cleaning structure according to claim 9, characterized in that: A fitting cover (97) is fixed on one side of the upper part of the rotating frame (86). The fitting cover (97) includes a front fitting plate (971) that is connected to the water inlet pipe (92). A middle plate (972) is fixed on one side of the front fitting plate (971). The middle plate (972) is connected to the water inlet (96). A water guide hole (974) is opened on the lower surface of the middle plate (972). A rear fixing plate (973) is fixed on one side of the middle plate (972).

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