Intelligent detector for water activity of lotus root starch

Abstract

The utility model relates to the field of agricultural product quality detection, in particular to an intelligent lotus root starch water activity detector which comprises a base, a touch screen, a detection box, a box cover, a rotating disc and a limiting shell, the touch screen is installed on the front side of the top of the base, the detection box is installed on the rear side of the top of the base, the box cover is hinged to one side of the top of the detection box, and a grab handle is arranged on the side portion of the box cover. A rotary disc is rotatably connected to the bottom in the detection box, a notch is formed in one side of the upper portion of the rotary disc, and a limiting shell is connected to the middle in the detection box. A friction wheel is driven by a servo motor to be in contact with a friction ring on the outer side of a rotating disc to drive a placement disc to rotate at a constant speed, so that a non-contact sensing technology of a detection assembly covers the whole surface of a sample, the measurement error caused by non-uniform local moisture distribution is eliminated, and the detection representativeness is improved; the pull rod is manually operated to rotate to a limit position to enable the end of the pull rod to abut against the box cover, mechanical constraint is formed, accidental unlocking caused by vibration or external force is prevented, and stability and safety in the detection process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product quality testing, and in particular to an intelligent detector for the water activity of lotus root starch. Background Technology

[0002] Lotus root starch water activity refers to the relative content of free water in lotus root starch, reflecting the water state that microorganisms can utilize. Free water is a key medium for microbial growth and chemical reactions, while bound water cannot be utilized because it is tightly bound to lotus root starch components (such as starch).

[0003] Traditional testing equipment lacks an effective closed-loop testing environment design, making samples susceptible to interference from ambient humidity and dust when exposed to external air. Especially in humid or highly polluted environments, external moisture exchange and contaminant intrusion significantly affect the accuracy of free water content measurements, causing water activity data to deviate from the true value. Furthermore, most equipment employs static, fixed-point testing methods, measuring only a single point in a localized area of ​​the sample. However, lotus root powder exhibits significant variations in moisture content across different areas due to factors such as particle size, clumping, and uneven distribution. Such methods fail to reflect the overall water activity of the sample, easily leading to biased test results and failing to meet the comprehensive data requirements for agricultural product quality control.

[0004] Therefore, there is an urgent need to design an intelligent detector for the water activity of lotus root starch. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an intelligent detector for lotus root starch water activity.

[0006] The technical solution is as follows: A smart detector for lotus root starch water activity includes a base, a touch screen, a detection box, a box cover, a rotating disk, a limiting shell, a placement plate, a detection component, a friction ring, a servo motor, a friction wheel, a damping rod, and a pull rod. The touch screen is mounted on the front top of the base, and the detection box is mounted on the rear top of the base. A box cover is hinged to one side of the top of the detection box, and a handle is provided on the side of the box cover. A rotating disk is rotatably connected to the bottom of the detection box, and a notch is provided on one side of the upper part of the rotating disk. A limiting shell is connected to the middle of the detection box, and a slot is provided in the middle of the limiting shell. The outer side of the rotating disk is rotatably connected to the slot in the middle of the limiting shell. A placement plate is snapped onto the top of the rotating disk. A detection component is mounted on the top inside the box cover, and a friction ring is connected to the outer side of the rotating disk. A servo motor is mounted on one side of the bottom inside the detection box, and a friction wheel is connected to the output shaft of the servo motor. The friction wheel rotates in contact with the adjacent friction ring. Damping rods are rotatably connected to both sides of the outside of the detection box, and two alternating pull rods are connected between the two damping rods.

[0007] Furthermore, after the two levers are rotated to their limits, they abut against the front and rear ends of the lid, respectively.

[0008] Furthermore, it also includes cushioning pads, with cushioning pads covering the outside of both pull rods.

[0009] Furthermore, it also includes support plates, with symmetrical support plates connected to both sides of the lower part of the base.

[0010] Furthermore, it also includes suction cups, with suction cups connected to each support plate.

[0011] Furthermore, it also includes ball valves and rotating rods. Each suction cup has a ball valve connected to its upper inner part, and a rotating rod is connected between the valve bodies of two ball valves on the same side.

[0012] Furthermore, it also includes a sealing gasket, with a sealing gasket attached to the top edge of the inside of the lid.

[0013] Beneficial effects: 1. The friction wheel driven by the servo motor contacts the friction ring on the outside of the rotating disk, causing the placement disk to rotate at a uniform speed. This allows the non-contact sensing technology of the detection component to cover the entire surface of the sample, eliminating measurement errors caused by uneven local moisture distribution and improving the representativeness of the detection. The manual operation lever is rotated to its limit position so that its end abuts against the box cover, forming a mechanical constraint to prevent accidental unlocking caused by vibration or external force, ensuring the stability and safety of the detection process.

[0014] 2. The buffer pad outside the pull rod absorbs the closing impact energy, reducing mechanical damage to the sealing gasket and detection components and extending the equipment life; the placement tray is fixed to the top of the rotating disk by a snap-fit ​​structure, supporting quick disassembly and cleaning, avoiding residual lotus root powder from affecting the subsequent detection accuracy, and simplifying the daily maintenance process.

[0015] 3. The adsorption state can be released by turning the lever in the opposite direction to close the ball valve. The combination design of the support plate and suction cup makes the device adaptable to different tabletop materials, taking into account both stability and flexibility. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the damping rod, tie rod, and buffer pad of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the testing box, box cover, and rotating disk of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the friction ring, servo motor, and friction wheel of this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the support plate, suction cup, and ball valve of this utility model.

[0021] The meanings of the labels in the attached diagram are as follows: 1-base, 2-touchscreen, 3-detection box, 4-box cover, 5-rotating disk, 50-limiting shell, 6-placement plate, 7-detection component, 8-friction ring, 9-servo motor, 10-friction wheel, 11-damping rod, 12-pull rod, 13-buffer pad, 14-support plate, 15-suction cup, 16-ball valve, 17-rotating rod, 18-sealing gasket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: An intelligent water activity detector for lotus root starch, such as... Figures 1-4 As shown, the device includes a base 1, a touch screen 2, a detection box 3, a box cover 4, a rotating disk 5, a limiting shell 50, a placement plate 6, a detection assembly 7, a friction ring 8, a servo motor 9, a friction wheel 10, a damping rod 11, and a pull rod 12. The touch screen 2 is mounted on the front top of the base 1, and the detection box 3 is mounted on the rear top of the base 1. The box cover 4 is hinged to one side of the top of the detection box 3, and a handle is provided on the side of the box cover 4. The rotating disk 5 is rotatably connected to the bottom inside the detection box 3, and a notch is provided on one side of the upper part of the rotating disk 5. The limiting shell 50 is connected to the middle of the detection box 3, and a slot is provided in the middle of the limiting shell 50. The outer side of the rotating disk 5 is rotatably connected to the slot in the middle of the limiting shell 5. The placement plate 6 is snapped onto the top of the rotating disk 5. The detection assembly 7 is mounted on the top inside the box cover 4, and a friction ring 8 is connected to the outer side of the rotating disk 5. The servo motor 9 is mounted on one side of the bottom inside the detection box 3, and a friction wheel 10 is connected to the output shaft of the servo motor 9. The servo motor 9 starts, and its output shaft drives the friction wheel 10 to rotate. The friction wheel 10 contacts the friction ring 8 on the outer side of the rotating disk 5. Through friction, the rotating disk 5 is driven to rotate stably along the empty groove in the middle of the limiting shell 50. The rotation of the rotating disk 5 causes the lotus root powder sample on the placement tray 6 to move at a constant speed in the detection box 3. The friction wheel 10 rotates and contacts the adjacent friction ring 8. The servo motor 9 at the bottom of the detection box 3 starts, and its output shaft drives the friction wheel 10 to rotate. The friction wheel 10 contacts the friction ring 8 on the outer side of the rotating disk 5. Through friction, the rotating disk 5 is driven to rotate stably along the empty groove in the middle of the limiting shell 50. The rotation of the rotating disk 5 causes the lotus root powder sample on the placement tray 6 to move at a constant speed in the detection box 3. Damping rods 11 are rotatably connected to both sides of the outside of the detection box 3. Two alternating pull rods 12 are connected between the two damping rods 11. After the two pull rods 12 rotate to their limits, they abut against the front and rear ends of the box cover 4, respectively.

[0024] like Figure 2 As shown, it also includes a buffer pad 13. Both pull rods 12 are covered with buffer pads 13. The buffer pads 13 assist the pull rods 12 in resisting the process and reduce physical wear.

[0025] like Figure 2 and Figure 5 As shown, it also includes a support plate 14. The support plate 14 is symmetrically connected to both sides of the lower part of the base 1. The combination design of the support plate 14 and the suction cup 15 makes the device adaptable to different material tabletops, taking into account both stability and flexibility.

[0026] like Figure 2 and Figure 5 As shown, it also includes suction cups 15, and each support plate 14 is connected to a suction cup 15, which is attached to the work surface.

[0027] like Figure 5 As shown, it also includes a ball valve 16 and a rotating rod 17. Each suction cup 15 is connected to a ball valve 16 in its upper inner part. A rotating rod 17 is connected between the valve bodies of two ball valves 16 on the same side. The ball valves 16 inside the suction cup 15 are opened synchronously under the linkage control of the rotating rod 17. The negative pressure effect is used to enhance the adsorption force and prevent the overall displacement when the detection box 3 rotates or the box cover 4 is opened and closed.

[0028] like Figure 1 As shown, it also includes a sealing gasket 18. The sealing gasket 18 is connected to the top edge of the box cover 4. The sealing gasket 18 is tightly attached to the upper edge of the test box 3 to form a closed test environment and block external moisture and dust interference.

[0029] In actual operation, the various components of this device work together precisely to achieve intelligent detection of the water activity of lotus root starch. The specific process is as follows: The operator first starts the detection program through the touch screen 2 on the front side of the base 1, and then evenly spreads the lotus root starch sample to be tested on the surface of the placement tray 6. Then, the lid 4, which is hinged to the top of the detection chamber 3, is closed. When the lid 4 is closed, the sealing gasket 18 at the top of its interior fits tightly against the upper edge of the detection chamber 3, forming a closed detection environment and blocking external moisture and dust interference. The handle design on the side of the lid 4 facilitates one-handed opening and closing, ensuring efficient and convenient sealing. The servo motor 9 at the bottom of the detection chamber 3 is started, and its output shaft drives the friction wheel 1. With the rotating disc 5 rotating, the friction wheel 10 contacts the friction ring 8 on the outer side of the rotating disc 5, driving the rotating disc 5 to rotate stably along the empty groove in the middle of the limiting shell 50 through friction. The rotation of the rotating disc 5 causes the lotus root starch sample on the placement plate 6 to move at a uniform speed within the detection chamber 3, ensuring that the detection component 7 can perform multi-point scanning of different areas of the sample, improving data representativeness. The empty groove structure of the limiting shell 50 restricts the axial displacement of the rotating disc 5, preventing position drift during rotation. The detection component 7 at the top inside the chamber cover 4 descends to a preset height as the chamber cover 4 closes, maintaining a constant distance between its sensing end and the surface of the lotus root starch sample. As the rotating disc 5 drives the sample to rotate continuously, the detection... Component 7 uses non-contact sensing technology to collect the moisture distribution signal on the sample surface in real time and transmits the data synchronously to the processing module in the touch screen 2. The scanning path of the detection component 7 covers the entire surface of the placement tray 6, eliminating measurement errors caused by uneven sample distribution. During the closing process of the cover 4, the damping rods 11 on both sides of the detection box 3 generate progressive resistance through the internal hydraulic device, causing the cover 4 to fall slowly and smoothly, avoiding rapid closing impact that could damage the sealing gasket 18 or the detection component 7. When the cover 4 is fully closed, the operator can directly pull the lever 12 to rotate it 180° to abut against the inverter body or mounting bracket, forming a rigid constraint. When the pull rod 12 is rotated to its limit position, its end engages with the limit block or slot on the mounting bracket to prevent accidental unlocking due to vibration or external force. The support plates 14 on both sides of the lower part of the base 1 are attached to the operating table by the built-in suction cups 15. When the device is running, the ball valve 16 inside the suction cup 15 is opened synchronously under the linkage control of the rotating rod 17. The negative pressure effect is used to enhance the suction force and prevent the overall displacement when the detection box 3 is rotated or the box cover 4 is opened and closed. If the device needs to be moved, the ball valve 16 can be closed by rotating the rotating rod 17 in the opposite direction to release the suction state. The combination design of the support plate 14 and the suction cup 15 makes the device adaptable to different material tabletops, taking into account both stability and flexibility.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sago water activity intelligent detector, comprising a base (1), characterized in that, It also includes a touch screen (2), a detection box (3), a box cover (4), a rotating disk (5), a limiting shell (50), a placement plate (6), a detection assembly (7), a friction ring (8), a servo motor (9), a friction wheel (10), a damping rod (11), and a pull rod (12). The touch screen (2) is installed on the front top of the base (1), and the detection box (3) is installed on the rear top of the base (1). The box cover (4) is hinged to one side of the top of the detection box (3). A handle is provided on the side of the box cover (4). The rotating disk (5) is rotatably connected to the bottom of the detection box (3). A notch is opened on one side of the upper part of the rotating disk (5). The limiting shell is connected to the middle of the detection box (3). 50), a slot is opened in the middle of the limiting shell (50), the outer side of the rotating disk (5) is rotatably connected to the slot in the middle of the limiting shell, a placement plate (6) is snapped on the top of the rotating disk (5), a detection component (7) is installed in the top of the box cover (4), a friction ring (8) is connected to the outer side of the rotating disk (5), a servo motor (9) is installed on one side of the bottom of the detection box (3), a friction wheel (10) is connected to the output shaft of the servo motor (9), the friction wheel (10) is in rotatable contact with the adjacent friction ring (8), damping rods (11) are rotatably connected to both sides of the outside of the detection box (3), and two alternating pull rods (12) are connected between the two damping rods (11).

2. The sago water activity intelligent detector according to claim 1, characterized in that, After the two levers (12) are rotated to their limit, they abut against the front and rear ends of the box cover (4) respectively.

3. The intelligent water activity detector for lotus root starch according to claim 2, characterized in that, It also includes a buffer pad (13), and both pull rods (12) are covered with buffer pads (13).

4. The sago water activity intelligent detector according to claim 3, characterized in that, It also includes a support plate (14), and the support plates (14) are symmetrically connected to the lower two sides of the base (1).

5. The sago water activity intelligent detector according to claim 4, characterized in that, It also includes suction cups (15), and each support plate (14) is connected to a suction cup (15).

6. The sago water activity intelligent detector according to claim 5, characterized in that, It also includes ball valves (16) and rotating rods (17). Each suction cup (15) is connected to a ball valve (16) on its upper inner part, and a rotating rod (17) is connected between the valve bodies of two ball valves (16) on the same side.

7. The sago water activity intelligent detector according to claim 6, characterized in that, It also includes a sealing gasket (18), which is connected to the top edge of the box cover (4).

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