Food peroxide value detection device

Abstract

The utility model discloses a food peroxide value detection device which comprises a box body, an oscillation device and a follow-up bottle pressing device, wherein the oscillation device and the follow-up bottle pressing device are vertically and correspondingly arranged in the box body; the oscillating device comprises a rotating seat, and the rotating seat is provided with a flexible seat groove for the iodine flask to sit; the follow-up bottle pressing device comprises a follow-up pressing plate, and the follow-up pressing plate is correspondingly pressed on a bottle opening of the iodine supply flask; when the rotating seat is matched with the follow-up pressing plate to clamp and position the iodine flask, the oscillation device drives the iodine flask to rotate. According to the utility model, the oscillation device and the follow-up bottle pressing device are arranged in the box body to rotate and oscillate the iodine flask after positioning, so that the convenience of food peroxide value detection is improved.

Description

Technical Field

[0001] This utility model belongs to the field of food peroxide value detection technology, and in particular relates to a food peroxide value detection device. Background Technology

[0002] Peroxide value is an early indicator of rancidity in oils and fats, primarily reflecting the degree of oxidation. Consuming food with excessive peroxide value generally does not harm human health, but long-term consumption of food with severely excessive peroxide value may lead to gastrointestinal discomfort and diarrhea. Excessive peroxide value may be caused by improper environmental conditions during product storage, leading to excessive oxidation of the oils; or it may be due to improper storage of raw materials, resulting in excessive oxidation of fats and ultimately, an excessive peroxide value in the final product.

[0003] GB 5009.227-2023, "National Food Safety Standard - Determination of Peroxide Value in Food," specifies the determination of samples using the indicator titration method (Method I). This method requires the sample to be tested under conditions avoiding direct sunlight. During the reaction of the peroxide with a saturated potassium iodide solution to generate free iodine, the sample must be placed in the dark for 3 minutes. Furthermore, the reaction solution must be shaken multiple times throughout the experiment, including gentle shaking, agitation, and vigorous shaking. These requirements place strict demands on laboratory environmental conditions, and the manual operation is cumbersome, time-consuming, and prone to errors that could lead to inaccurate results. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a food peroxide value detection device, which improves the convenience of food peroxide value detection by setting an oscillation device and a follow-up pressure bottle device in the chamber to rotate and oscillate the iodine bottle after positioning.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a food peroxide value detection device, comprising a housing and a vertically arranged oscillation device and a follow-up bottle pressing device within the housing; the oscillation device includes a rotating base with a flexible groove for an iodine bottle to sit on; the follow-up bottle pressing device includes a follow-up pressing plate that presses against the mouth of the iodine bottle; when the rotating base and the follow-up pressing plate cooperate to clamp and position the iodine bottle, the oscillation device drives the iodine bottle to rotate.

[0006] Furthermore, the rotating seat includes a frame and a flexible liner. The flexible liner is laid in the seat groove of the frame to form the flexible seat groove, and the iodine bottle sitting in the flexible seat groove is elastically wrapped by the flexible liner.

[0007] Furthermore, the oscillation device also includes a mounting bracket and a rotation drive unit. The rotating seat is rotatably mounted on the inner bottom of the housing via the mounting bracket, and the rotation drive unit drives and connects to the rotating seat.

[0008] Furthermore, the follow-up bottle pressing device also includes a telescopic rod and a bearing seat; the bearing seat is installed on the inner top of the box through the telescopic rod, and the follow-up pressing plate has a pressing plate shaft that cooperates with the bearing seat.

[0009] Furthermore, the follower plate has a through hole, and when the follower plate is pressed against the mouth of the iodine bottle, the iodine bottle can breathe through the through hole.

[0010] Furthermore, a viewing window is provided on the side of the housing, and a notch is provided on the seat wall near the viewing window of the rotating seat.

[0011] Furthermore, the oscillation device and the follow-up bottle pressing device correspond one-to-one to form a set of oscillation units that perform oscillation operation on the iodine bottle, and there are several sets of oscillation units inside the box.

[0012] Furthermore, the housing is equipped with an oscillation switch and a timer.

[0013] Beneficial effects: This utility model places the iodine bottle in the flexible groove of the rotating seat, and achieves a simple positioning effect of the iodine bottle through the flexible rebound effect. Then, the follow-up pressure plate presses down on the bottle mouth, thereby achieving clamping positioning of the iodine bottle, ensuring the posture stability of the iodine bottle during the rotation and oscillation process, and improving the convenience and efficiency of food peroxide value detection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal structure of the detection device of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the oscillation device and the follow-up bottle pressing device;

[0016] Figure 3 This is a schematic diagram of the overall structure of the detection device of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 and Figure 2As shown, a food peroxide value detection device includes a housing 1 and a vertically arranged oscillation device 2 and a follow-up bottle pressing device 3 within the housing 1. The oscillation device 2 includes a rotating base 21 with a flexible seat groove 20 for an iodine flask 4 to sit on. The follow-up bottle pressing device 3 includes a follow-up pressing plate 31, which presses against the mouth of the iodine flask 4. When the rotating base 21 and the follow-up pressing plate 31 are used to clamp and position the iodine flask 4, the oscillation device 2 drives the iodine flask 4 to rotate. By placing the iodine flask 4 in the flexible seat groove 20 of the rotating base 21, a simple positioning effect is achieved through flexible rebound. Subsequently, the follow-up pressing plate 31 is used to press down on the mouth of the iodine flask, thereby achieving clamping and positioning of the iodine flask 4, ensuring the posture stability of the iodine flask 4 during rotation and oscillation, and improving the convenience and efficiency of food peroxide value detection.

[0019] like Figure 2 As shown, the rotating seat 21 includes a seat frame 21a and a flexible liner 21b. The flexible liner 21b is laid in the seat groove of the seat frame 21a to form the flexible seat groove 20. The iodine bottle 4, which sits in the flexible seat groove 20, is elastically wrapped by the flexible liner 21b. The elastically wrapped part is the bottom part of the iodine bottle 4, which realizes the initial simplified positioning of the iodine bottle 4. The flexible liner 21b can be a rubber liner, an airbag liner, etc.

[0020] like Figure 2 As shown, the oscillation device 2 also includes a mounting bracket 22 and a rotation drive unit 23. The rotating seat 21 is rotatably mounted on the inner bottom of the housing 1 through the mounting bracket 22. The rotation drive unit 23 drives the rotating seat 21, thereby enabling the rotating seat 21 to perform circumferential rotation. The rotation drive unit 23 is preferably a motor.

[0021] like Figure 2 As shown, the follow-up bottle pressing device 3 also includes a telescopic rod 32 and a bearing seat 33; the bearing seat 33 is installed on the inner top of the housing 1 via the telescopic rod 32, and the follow-up pressing plate 31 has a pressing plate shaft that cooperates with the bearing seat 33. The telescopic rod 32 is an elastic telescopic rod with a built-in spring 34. For ease of operation, a hand-held pad is provided at the lower end of the elastic telescopic rod, and a positioning screw 35 is slackly connected to the outside of the elastic telescopic rod.

[0022] In order to allow the iodine bottle 4 to breathe normally during the testing process, in this utility model, the follower pressure plate 31 is provided with a through hole 31a. When the follower pressure plate 31 is pressed against the mouth of the iodine bottle 4, the iodine bottle 4 breathes through the through hole 31a.

[0023] like Figure 3As shown, the side of the box 1 is provided with a viewing window 5, while avoiding the rotating seat 21 from obstructing the bottom part of the iodine bottle 4 in terms of visibility. The rotating seat 21 has a notch 210 on the seat wall near the viewing window 5.

[0024] The oscillation device 2 and the follow-up pressure bottle device 3 correspond one-to-one to form a set of oscillation units that perform oscillation operation on the iodine flask 4. There are several sets of oscillation units in the box 1, which can perform detection operations on multiple samples at the same time.

[0025] The housing 1 is equipped with an oscillation switch 6 and a timer 7.

[0026] The specific operating method of this utility model is as follows: Based on the determination of the sample using the indicator titration method, Method 1 of GB 5009.227-2023 "National Food Safety Standard - Determination of Peroxide Value in Food", the experimental operation begins as follows:

[0027] Open the lid and viewing window, place the 250mL iodine flask on the rotating base 21 of the shaking device 2, open the iodine flask cap, and press the iodine flask mouth with the follower pressure plate 31 of the follower pressure device 3. Then add 2g-3g of sample to the iodine flask, followed by 30mL of chloroform-glacial acetic acid solution. Then turn on the shaking switch 6, select the low speed setting, and gently shake the iodine flask. Observe through the viewing window 5. After the sample is completely dissolved, turn off the shaking switch 6. Then add potassium iodide solution, turn on the shaking switch 6 again, select the low speed setting, and set the timer 7. Gently shake the iodine flask for 30 seconds, then close the lid and viewing window, place it in the dark, and time for 3 minutes. Next, open the lid and viewing window, add 100mL of water, turn on the shaking switch 6, select the low speed setting, and turn off the shaking switch 6 once the liquid is mixed. Then, continue adding sodium thiosulfate standard titration solution to the iodine flask and turn on the shaker switch 6. Shake at a low speed, observing the color change in the iodine flask through the viewing window. When the color turns pale yellow, add 1 mL of starch indicator, then continue adding sodium thiosulfate standard titration solution. Turn the shaker switch 6 to the high speed setting and shake the volumetric flask vigorously, observing the color change in the iodine flask through the viewing window. When the blue color in the iodine flask disappears, the reaction is complete, and the shaker switch 6 is turned off. Multiple iodine flasks can be set up in the chamber, allowing for simultaneous testing of multiple samples.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A food peroxide value detection device, characterized in that: The device includes a housing (1) and a vertically arranged oscillation device (2) and a follow-up bottle pressing device (3) within the housing (1). The oscillation device (2) includes a rotating seat (21) with a flexible seat groove (20) for the iodine bottle (4) to sit on. The follow-up bottle pressing device (3) includes a follow-up pressing plate (31) which presses against the mouth of the iodine bottle (4). When the rotating seat (21) and the follow-up pressing plate (31) are used to clamp and position the iodine bottle (4), the oscillation device (2) drives the iodine bottle (4) to rotate.

2. The food peroxide value detection device according to claim 1, characterized in that: The rotating seat (21) includes a seat frame (21a) and a flexible liner (21b). The flexible liner (21b) is laid in the seat groove of the seat frame (21a) to form the flexible seat groove (20). The iodine bottle (4) sitting in the flexible seat groove (20) is elastically wrapped by the flexible liner (21b).

3. The food peroxide value detection device according to claim 1, characterized in that: The oscillation device (2) further includes a mounting bracket (22) and a rotation drive unit (23). The rotating seat (21) is rotatably mounted on the bottom of the housing (1) through the mounting bracket (22), and the rotation drive unit (23) drives the rotating seat (21).

4. The food peroxide value detection device according to claim 1, characterized in that: The follow-up bottle pressing device (3) also includes a telescopic rod (32) and a bearing seat (33); the bearing seat (33) is installed on the inner top of the box (1) through the telescopic rod (32), and the follow-up pressing plate (31) has a pressing plate shaft that cooperates with the bearing seat (33).

5. The food peroxide value detection device according to claim 1, characterized in that: The follower plate (31) has a through hole (31a). When the follower plate (31) is pressed against the mouth of the iodine bottle (4), the iodine bottle (4) can breathe through the through hole (31a).

6. The food peroxide value detection device according to claim 1, characterized in that: The side of the housing (1) is provided with a viewing window (5), and the rotating seat (21) has a notch (210) on the seat wall near the viewing window (5).

7. The food peroxide value detection device according to claim 1, characterized in that: The oscillation device (2) and the follow-up pressure bottle device (3) correspond one-to-one to form a set of oscillation units that perform oscillation operation on the iodine bottle (4), and there are several sets of oscillation units in the box (1).

8. The food peroxide value detection device according to claim 1, characterized in that: The housing (1) is equipped with an oscillation switch (6) and a timer (7).

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