A device for detecting nitrite in pickles

Abstract

The application provides a pickled vegetable nitrite detection device, and relates to the technical field of food detection equipment. The device comprises a body. The upper surface of the body is provided with a driving mechanism. The output ends of the driving mechanism are respectively provided with a crushing mechanism and a squeezing mechanism. The crushed pickled vegetable is squeezed to separate liquid through the squeezing mechanism. The liquid outlet end of the squeezing mechanism is connected with a hose. The bottom end of the hose is connected with a movable collection box. The bottom of the collection box is connected with a liquid distribution mechanism. The bottom of the liquid distribution mechanism is provided with a dropper. The crushing mechanism and the squeezing mechanism are synchronously driven by the driving mechanism to crush the pickled vegetable and directly squeeze the juice. The collected juice is sequentially dropped into multiple placing openings of a detection disc through the liquid distribution mechanism and the dropper. The collection box and the liquid distribution mechanism are intermittently moved by a moving mechanism. The liquid distribution and addition of multiple groups of detection samples can be automatically completed. Manual addition of samples is not required. The operation process of nitrite detection is simplified.

Description

Technical Field

[0001] This invention relates to the field of food testing equipment technology, specifically to a device for detecting nitrite in kimchi. Background Technology

[0002] Pickled vegetables are a traditional Chinese fermented food. During the pickling and fermentation process, nitrates in vegetables are reduced to nitrites by microorganisms. Nitrites are highly toxic; excessive intake can cause poisoning. Furthermore, nitrites can be converted into carcinogenic nitrosamines, seriously endangering human health. National food safety standards strictly limit the amount of nitrite residue in pickled vegetables. Therefore, accurate detection of nitrites in the production, distribution, and regulatory stages of pickled vegetables is crucial.

[0003] Currently, existing equipment and technologies for detecting nitrite in kimchi have many shortcomings, which seriously affect the accuracy and efficiency of detection. Specifically: 1. Traditional testing equipment only processes kimchi samples by simple cutting and crushing. After crushing, a large amount of juice remains inside the kimchi pulp, and nitrite cannot be fully dissolved, resulting in the nitrite content in the extracted test solution being lower than the actual value. In other words, kimchi needs to be mashed and the juice separated before testing can be performed. Moreover, the nitrite in kimchi is not evenly distributed, resulting in large errors in the test results.

[0004] 2. Usually, when extracting liquid from kimchi after separation, it is necessary to extract the liquid separately using a liquid extractor. This requires repeated extraction, which is troublesome, prone to contamination, and has the problem of large single-test error. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a device for detecting nitrite in kimchi, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a device for detecting nitrite in kimchi, comprising a body, a driving mechanism provided on the upper surface of the body, the output end of the driving mechanism driving a crushing mechanism and a squeezing mechanism respectively, the crushing mechanism and the squeezing mechanism being connected, the crushing mechanism being used to crush kimchi, the crushed kimchi being squeezed out by the squeezing mechanism to separate the liquid, the liquid outlet end of the squeezing mechanism being connected to a hose, the bottom end of the hose being connected to a movable collection box, the bottom of the collection box being connected to a liquid dispensing mechanism, the bottom of the liquid dispensing mechanism being provided with a dropper, the inner bottom wall of the body being provided with a detection plate, the surface of the detection plate being provided with a plurality of placement openings; It also includes a moving mechanism located inside the body, which drives the collection tank and the dispensing mechanism to move horizontally intermittently. As the collection tank and the dispensing mechanism move intermittently, the dropper drips intermittently to the area above the placement port.

[0007] Preferably, the driving mechanism includes a fixed plate fixedly connected to the upper surface of the machine body, a drive motor fixedly connected to the outer side of the fixed plate, a drive rod fixedly connected to the output end of the drive motor, a second bevel gear set provided at the other end of the drive rod, the connecting end of the second bevel gear set being connected to the crushing mechanism, a first electromagnetic clutch and a speed increaser also provided on the right side of the drive rod, a first bevel gear set also provided on the left side of the drive rod, a docking rod provided at the connecting end of the first bevel gear set, a second electromagnetic clutch provided on the upper side of the docking rod, and the bottom end of the docking rod being connected to the extrusion mechanism.

[0008] Preferably, the crushing mechanism includes a crushing box fixedly connected to the inner wall of the machine body. The crushing box has a rotating shaft connected to the second bevel gear set inside. A crushing blade is fixedly connected to the outer wall of the rotating shaft. A feed inlet is provided through one side of the upper surface of the crushing box. A solenoid valve is provided at the bottom of the crushing box. A guide tube is provided at the bottom of the solenoid valve. The bottom end of the guide tube is connected to the extrusion mechanism.

[0009] Preferably, the extrusion mechanism includes a connecting frame fixedly connected inside the machine body. Inside the connecting frame, there is a docking shaft fixedly connected to the docking rod. A turntable is fixedly sleeved on the outer wall of the docking shaft. A connecting rod is rotatably connected to the outer side of the surface of the turntable. A sliding plate is rotatably connected to the other end of the connecting rod. A guide rod is fixedly connected to one side of the sliding plate. An extrusion plate is fixedly connected to the other end of the guide rod. A filter screen is provided at the bottom right side of the connecting frame. A sealing plate is locked to the outer right side of the connecting frame.

[0010] Preferably, the moving mechanism includes a fixed frame fixedly connected to the inside of the machine body, an intermittent motor is provided on the outside of the fixed frame, the output end of the intermittent motor extends through the inside of the fixed frame and is fixedly connected to a lead screw, a moving block is threadedly connected to the outer wall of the lead screw, the bottom of the moving block extends downward through the fixed frame and is fixedly connected to a collection box.

[0011] Preferably, the liquid dispensing mechanism includes a liquid dispensing frame fixedly connected to the bottom of the collection tank. A rotating ball is provided inside the liquid dispensing frame. A rotating rod is fixedly connected to the middle of the rotating ball. A cylindrical hole is opened at the bottom of the rotating ball. The rear end of the rotating rod extends outward and is fixedly connected to a mating gear. A mating rack is fixedly connected to the upper side of the mating gear. A sealing ring is also wrapped around the outer surface of the rotating ball.

[0012] Preferably, the placement port is used to place test tubes for detecting nitrite.

[0013] Preferably, the testing method for the test tubes is as follows: multiple test tubes containing color developing paper or color developing agent are placed in the placement opening, and after the kimchi separation liquid reacts with it, the color developed test tubes are compared with the standard colorimetric card to obtain the nitrite content of several groups, and then the average value is taken.

[0014] (III) Beneficial Effects This invention provides a device for detecting nitrite in kimchi, which has the following beneficial effects: 1. By setting up a driving mechanism, a crushing mechanism and an extrusion mechanism, the present invention can realize the crushing and extrusion of kimchi in sequence through the same driving source. After the kimchi is fully crushed, the juice containing nitrite in the kimchi can be fully extruded and separated, ensuring that the nitrite content in the test solution can match the actual content of the kimchi, thus improving the accuracy of the test results. At the same time, the structure is compact and reasonable, reducing the energy consumption of the equipment.

[0015] 2. By setting up a moving mechanism and a dispensing mechanism, this invention can automatically realize the intermittent dispensing of liquid by the dispensing mechanism during the moving collection box and the dispensing mechanism. It can automatically drip a quantitative amount of separated liquid into multiple test tubes in sequence, eliminating the need for repeated manual liquid collection operations, reducing the possibility of operational contamination. At the same time, by taking the average value of multiple sets of tests, the accuracy of the test results is further improved, and the operation is more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the entire invention; Figure 3 This is a schematic diagram of the driving mechanism of the present invention; Figure 4 This is a schematic diagram of the crushing mechanism of the present invention; Figure 5 This is a schematic diagram of the extrusion mechanism of the present invention; Figure 6 This is a schematic diagram of the moving mechanism of the present invention; Figure 7 This is a cross-sectional schematic diagram of the liquid separation mechanism of the present invention.

[0017] The components include: 1. Machine body; 2. Drive mechanism; 3. Crushing mechanism; 4. Extrusion mechanism; 5. Hose; 6. Moving mechanism; 7. Collection box; 8. Dispensing mechanism; 9. Dropper; 10. Detection plate; 11. Placement port. 21. Fixed plate; 22. Drive motor; 23. Drive rod; 24. First bevel gear set; 25. First electromagnetic clutch; 26. Speed ​​increaser; 27. Second bevel gear set; 28. Connecting rod; 29. ​​Second electromagnetic clutch; 31. Crushing box; 32. Rotating shaft; 33. Crushing blade; 34. Feed inlet; 35. Guide pipe; 36. Solenoid valve; 41. Connecting frame; 42. Docking shaft; 43. Turntable; 44. Connecting rod; 45. Slide plate; 46. Guide rod; 47. Extrusion plate; 48. Filter screen; 49. Sealing plate; 61. Fixed frame; 62. Intermittent motor; 63. Lead screw; 64. Moving block; 81. Separating frame; 82. Rotating ball; 83. Rotating rod; 84. Cylindrical hole; 85. Connecting gear; 86. Connecting rack; 87. Sealing ring. Detailed Implementation

[0018] 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.

[0019] Example 1: like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a device for detecting nitrite in kimchi, including a body 1. A driving mechanism 2 is provided on the upper surface of the body 1. The output end of the driving mechanism 2 drives a crushing mechanism 3 and a squeezing mechanism 4 respectively. The crushing mechanism 3 and the squeezing mechanism 4 are connected. The crushing mechanism 3 is used to crush the kimchi. The crushed kimchi is squeezed out by the squeezing mechanism 4 to separate the liquid. The liquid outlet end of the squeezing mechanism 4 is connected to a hose 5. The bottom end of the hose 5 is connected to a movable collection box 7. The bottom of the collection box 7 is connected to a liquid dispensing mechanism 8. A dropper 9 is provided at the bottom of the liquid dispensing mechanism 8. A detection plate 10 is provided on the inner bottom wall of the body 1. The surface of the detection plate 10 has a plurality of placement ports 11. The device also includes a moving mechanism 6 located inside the body 1. The moving mechanism 6 drives the collection box 7 and the liquid dispensing mechanism 8 to move horizontally intermittently. As the collection box 7 and the liquid dispensing mechanism 8 move intermittently, the dropper 9 drips liquid intermittently to the area above the placement ports 11.

[0020] In use, the drive mechanism 2 is activated, and the kimchi to be tested is fed into the crushing mechanism 3 for thorough crushing. The crushed kimchi falls into the squeezing mechanism 4 for continuous reciprocating squeezing to fully squeeze out the juice contained inside the kimchi. The separated liquid enters the collection box 7 through the hose 5. Then, the moving mechanism 6 is activated, which drives the collection box 7 and the liquid separation mechanism 8 to move synchronously and intermittently. During the movement, the separated liquid drips through the dropper 9. At this time, the dropper 9 moves just above the next placement port 11, completing one liquid separation and dripping. This process is repeated to automatically drip equal amounts of separated liquid into the test tubes placed in multiple placement ports 11. Then, colorimetric detection can be performed, and the average value of multiple test results is taken to effectively reduce detection errors.

[0021] Example 2: like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a device for detecting nitrite in kimchi, including a body 1. A driving mechanism 2 is provided on the upper surface of the body 1. The output end of the driving mechanism 2 drives a crushing mechanism 3 and an extrusion mechanism 4 respectively. The crushing mechanism 3 and the extrusion mechanism 4 are connected. The crushing mechanism 3 is used to crush the kimchi. The crushed kimchi is extruded and separated by the extrusion mechanism 4.

[0022] Specifically, in combination Figure 3 The drive mechanism 2 includes a fixed plate 21 fixedly connected to the upper surface of the machine body 1. A drive motor 22 is fixedly connected to the outer side of the fixed plate 21. A drive rod 23 is fixedly connected to the output end of the drive motor 22. A second bevel gear set 27 is provided at the other end of the drive rod 23. The connecting end of the second bevel gear set 27 is connected to the crushing mechanism 3. A first electromagnetic clutch 25 and a speed increaser 26 are also provided on the right side of the drive rod 23. A first bevel gear set 24 is also provided on the left side of the drive rod 23. A docking rod 28 is provided at the connecting end of the first bevel gear set 24. A second electromagnetic clutch 29 is provided on the upper side of the docking rod 28. The bottom end of the docking rod 28 is connected to the extrusion mechanism 4.

[0023] In the above structure, when the drive motor 22 is working, it drives the drive rod 23 to rotate, the first electromagnetic clutch 25 is closed, and the drive rod 23 continues to drive the second bevel gear set 27 to rotate at a higher speed through the speed increaser 26, thereby driving the crushing mechanism 3 to run and complete the crushing. Next, the second electromagnetic clutch 29 is closed, and the first bevel gear set 24 drives the docking rod 28 to rotate, thereby driving the extrusion mechanism 4 to run. This realizes the separate driving of the crushing and extrusion operations, which is compact and easy to control, and reduces the overall manufacturing cost of the device.

[0024] Combination Figure 4The crushing mechanism 3 includes a crushing box 31 fixedly connected to the inner wall of the machine body 1. The crushing box 31 is provided with a rotating shaft 32 connected to the second bevel gear set 27. The outer wall of the rotating shaft 32 is fixedly connected with a crushing blade 33. A feed inlet 34 is provided through one side of the upper surface of the crushing box 31. A solenoid valve 36 is provided at the bottom of the crushing box 31. A conduit 35 is provided at the bottom of the solenoid valve 36. The bottom end of the conduit 35 is connected to the extrusion mechanism 4.

[0025] In the above structure, after the kimchi is put into the crushing box 31 through the feed inlet 34, the rotating shaft 32 drives the crushing blade 33 to rotate at high speed, which fully cuts and crushes the kimchi into small pieces, so that the juice can flow out fully during the subsequent extrusion operation. After crushing is completed, the solenoid valve 36 is opened, and the crushed kimchi pieces fall into the extrusion mechanism 4 through the conduit 35 to wait for extrusion.

[0026] Combination Figure 5 The extrusion mechanism 4 includes a connecting frame 41 fixedly connected inside the machine body 1. Inside the connecting frame 41, there is a docking shaft 42 fixedly connected to the docking rod 28. A turntable 43 is fixedly sleeved on the outer wall of the docking shaft 42. A connecting rod 44 is rotatably connected to the outer side of the surface of the turntable 43. A slide plate 45 is rotatably connected to the other end of the connecting rod 44. A guide rod 46 is fixedly connected to one side of the slide plate 45. An extrusion plate 47 is fixedly connected to the other end of the guide rod 46. A filter screen 48 is provided at the bottom right side of the connecting frame 41. A sealing plate 49 is locked to the outer right side of the connecting frame 41.

[0027] In the above structure, when the docking shaft 42 rotates, it drives the turntable 43 to rotate. The turntable 43 drives the slide plate 45 to reciprocate linearly through the connecting rod 44, which in turn drives the extrusion plate 47 to continuously extrude and extrude the kimchi pieces through the guide rod 46, fully squeezing out the juice contained inside the kimchi pieces. The juice flows down from the liquid outlet after passing through the filter screen 48. After the extrusion is completed, the sealing plate 49 can be opened to remove the residue after extrusion. This allows the nitrite to dissolve fully, avoiding low test results due to juice residue, and effectively improving the test accuracy.

[0028] The outlet end of the squeezing mechanism 4 is connected to a hose 5, the bottom end of the hose 5 is connected to a movable collection box 7, the bottom of the collection box 7 is connected to a dispensing mechanism 8, the bottom of the dispensing mechanism 8 is provided with a dropper 9, the inner bottom wall of the machine body 1 is provided with a detection plate 10, and the surface of the detection plate 10 is provided with several placement ports 11; it also includes a moving mechanism 6 located inside the machine body 1, the moving mechanism 6 drives the collection box 7 and the dispensing mechanism 8 to move horizontally intermittently, and with the intermittent movement of the collection box 7 and the dispensing mechanism 8, the dropper 9 intermittently drips liquid to the area above the placement port 11.

[0029] Specifically, in combination Figure 6The moving mechanism 6 includes a fixed frame 61 fixedly connected inside the body 1. An intermittent motor 62 is provided on the outside of the fixed frame 61. The output end of the intermittent motor 62 extends into the interior of the fixed frame 61 and is fixedly connected to a lead screw 63. A moving block 64 is threadedly connected to the outer wall of the lead screw 63. The bottom of the moving block 64 extends downward through the fixed frame 61 and is fixedly connected to a collection box 7.

[0030] In the above structure, when the intermittent motor 62 is working, it will drive the lead screw 63 to rotate intermittently. When the lead screw 63 rotates, it will drive the moving block 64 to move horizontally and intermittently along the fixed frame 61. The distance of each intermittent movement is exactly the center distance between adjacent placement ports 11. This ensures that when the moving block 64 stops moving, the dropper 9 can be aligned with the test tube at the corresponding placement port 11, thus ensuring the accuracy of liquid dispensing.

[0031] Combination Figure 7 The liquid separation mechanism 8 includes a liquid separation frame 81 fixedly connected to the bottom of the collection tank 7. A rotating ball 82 is provided inside the liquid separation frame 81. A rotating rod 83 is fixedly connected to the middle of the rotating ball 82. A cylindrical hole 84 is opened at the bottom of the rotating ball 82. The rear end of the rotating rod 83 extends outward and is fixedly connected to a mating gear 85. A mating rack 86 is fixedly connected to the upper side of the mating gear 85. A sealing ring 87 is also wrapped around the outer surface of the rotating ball 82.

[0032] In the above structure, when the collection box 7 moves the liquid separation frame 81 horizontally, the docking gear 85 rolls along the fixed docking rack 86, which in turn drives the rotating ball 82 to rotate via the rotating rod 83. When the cylindrical hole 84 of the rotating ball 82 aligns with the upper and lower ends of the liquid separation frame 81, the separated liquid in the collection box 7 passes through the cylindrical hole 84 and drips from the dropper 9, completing one liquid separation. When the collection box 7 continues to move, the rotating ball 82 rotates accordingly, causing the cylindrical hole 84 to deviate, and the liquid separation frame 81 is blocked by the rotating ball 82, stopping the liquid discharge. This achieves automatic intermittent liquid separation and dripping during the movement, without the need for an additional drive structure to control the liquid separation. The structure is simpler and more compact, reducing equipment costs.

[0033] Secondly, the placement port 11 is used to place test tubes for detecting nitrite. The detection method for the test tubes is as follows: multiple test tubes containing color developing paper or color developing agent are placed in the placement port 11. After the kimchi separation liquid reacts with it, the color developed test tubes are compared with the standard colorimetric card to obtain the nitrite content of several groups, and then the average value is taken.

[0034] Working principle: During use, the kimchi to be tested is fed into the crushing chamber 31 through the feed inlet 34 of the crushing mechanism 3. The drive motor 22 is started, at which time the first electromagnetic clutch 25 is closed and the second electromagnetic clutch 29 is disengaged. The drive motor 22 drives the drive rod 23 to rotate. The drive rod 23 continues to drive the second bevel gear set 27 to rotate at a faster speed through the speed increaser 26, which in turn drives the rotating shaft 32 to rotate. The rotating shaft 32 drives the crushing blade 33 to fully crush the kimchi inside the crushing chamber 31. After crushing is completed, the solenoid valve 36 is opened, and the crushed kimchi is discharged through the guide valve. The tube 35 falls into the connecting frame 41 of the extrusion mechanism 4, and then the first electromagnetic clutch 25 is disengaged and the second electromagnetic clutch 29 is engaged. At this time, the drive rod 23 drives the docking rod 28 to rotate through the first bevel gear set 24. The docking rod 28 drives the docking shaft 42 and the turntable 43 to rotate. The turntable 43 drives the extrusion plate 47 to repeatedly extrude the crushed kimchi, fully squeezing out the juice contained in the kimchi. The separated liquid flows out through the filter screen 48 and enters the collection box 7 through the hose 5. The residue remains in the connecting frame 41, and the sealing plate 49 can be opened for cleaning later. Then, the intermittent motor 62 of the moving mechanism 6 is activated. The intermittent motor 62 drives the lead screw 63 to rotate, and the lead screw 63 drives the moving block 64 to move horizontally and intermittently along the fixed frame 61. The moving block 64 drives the collection box 7 and the liquid separation mechanism 8 to move synchronously. During the movement, the docking gear 85 rolls along the fixed docking rack 86, driving the rotating rod 83 and the rotating ball 82 to rotate. When the cylindrical hole 84 of the rotating ball 82 rotates to face upward, the separated liquid in the collection box 7 enters the cylindrical hole 84. When the rotating ball 82 rotates to face downward, the separated liquid inside the cylindrical hole 84 drips through the dropper 9. At this time, the dropper 9 moves just above the next placement port 11, completing one liquid separation and dripping cycle. By repeating this process, equal amounts of separated liquid can be automatically dripped into the test tubes placed in multiple placement ports 11. Then, colorimetric detection can be performed, and finally, the average value of multiple test results is taken, effectively reducing detection errors.

[0035] 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 device for detecting nitrite in kimchi, characterized in that: The machine includes a body (1), on the upper surface of which a driving mechanism (2) is provided. The output end of the driving mechanism (2) drives a crushing mechanism (3) and a squeezing mechanism (4) respectively. The crushing mechanism (3) and the squeezing mechanism (4) are connected. The crushing mechanism (3) is used to crush kimchi. The crushed kimchi is squeezed out by the squeezing mechanism (4) to separate the liquid. The liquid outlet end of the squeezing mechanism (4) is connected to a hose (5). The bottom end of the hose (5) is connected to a movable collection box (7). The bottom of the collection box (7) is connected to a liquid separation mechanism (8). The bottom of the liquid separation mechanism (8) is provided with a dropper (9). The inner bottom wall of the machine body (1) is provided with a detection plate (10). The surface of the detection plate (10) is provided with several placement ports (11). It also includes a moving mechanism (6) located inside the body (1), which drives the collection box (7) and the dispensing mechanism (8) to move horizontally intermittently. As the collection box (7) and the dispensing mechanism (8) move intermittently, the dropper (9) drips intermittently to the area above the placement port (11).

2. The device for detecting nitrite in kimchi according to claim 1, characterized in that: The drive mechanism (2) includes a fixed plate (21) fixedly connected to the upper surface of the body (1). A drive motor (22) is fixedly connected to the outer side of the fixed plate (21). A drive rod (23) is fixedly connected to the output end of the drive motor (22). A second bevel gear set (27) is provided at the other end of the drive rod (23). The connecting end of the second bevel gear set (27) is connected to the crushing mechanism (3). A first electromagnetic clutch (25) and a speed increaser (26) are also provided on the right side of the drive rod (23). A first bevel gear set (24) is also provided on the left side of the drive rod (23). A docking rod (28) is provided at the connecting end of the first bevel gear set (24). A second electromagnetic clutch (29) is provided on the upper side of the docking rod (28). The bottom end of the docking rod (28) is connected to the extrusion mechanism (4).

3. The device for detecting nitrite in kimchi according to claim 2, characterized in that: The crushing mechanism (3) includes a crushing box (31) fixedly connected to the inner wall of the machine body (1). The crushing box (31) is provided with a rotating shaft (32) connected to the second bevel gear set (27). The outer wall of the rotating shaft (32) is fixedly connected with a crushing blade (33). A feed inlet (34) is provided through one side of the upper surface of the crushing box (31). A solenoid valve (36) is provided at the bottom of the crushing box (31). A guide tube (35) is provided at the bottom of the solenoid valve (36). The bottom end of the guide tube (35) is connected to the extrusion mechanism (4).

4. The device for detecting nitrite in kimchi according to claim 3, characterized in that: The extrusion mechanism (4) includes a connecting frame (41) fixedly connected inside the machine body (1). The connecting frame (41) is provided with a docking shaft (42) fixedly connected to the docking rod (28). A turntable (43) is fixedly sleeved on the outer wall of the docking shaft (42). A connecting rod (44) is rotatably connected to the outer side of the surface of the turntable (43). A slide plate (45) is rotatably connected to the other end of the connecting rod (44). A guide rod (46) is fixedly connected to one side of the slide plate (45). An extrusion plate (47) is fixedly connected to the other end of the guide rod (46). A filter screen (48) is provided at the bottom right side of the connecting frame (41). A sealing plate (49) is locked to the outer right side of the connecting frame (41).

5. The device for detecting nitrite in kimchi according to claim 1, characterized in that: The moving mechanism (6) includes a fixed frame (61) fixedly connected inside the body (1). An intermittent motor (62) is provided on the outside of the fixed frame (61). The output end of the intermittent motor (62) extends through the inside of the fixed frame (61) and is fixedly connected to a lead screw (63). A moving block (64) is threadedly connected to the outer wall of the lead screw (63). The bottom of the moving block (64) extends downward through the fixed frame (61) and is fixedly connected to a collection box (7).

6. The device for detecting nitrite in kimchi according to claim 5, characterized in that: The liquid separation mechanism (8) includes a liquid separation frame (81) fixedly connected to the bottom of the collection box (7). A rotating ball (82) is provided inside the liquid separation frame (81). A rotating rod (83) is fixedly connected to the middle of the rotating ball (82). A cylindrical hole (84) is opened at the bottom of the rotating ball (82). The rear end of the rotating rod (83) extends outward and is fixedly connected to a mating gear (85). A mating rack (86) is fixedly connected to the upper side of the mating gear (85). A sealing ring (87) is also wrapped around the outer surface of the rotating ball (82).

7. The device for detecting nitrite in kimchi according to claim 1, characterized in that: The placement port (11) is used to place test tubes for detecting nitrite.

8. The device for detecting nitrite in kimchi according to claim 7, characterized in that: The test tube test method is as follows: multiple test tubes containing color developing paper or color developing agent are placed in the placement port (11). After the kimchi separation liquid reacts with it, the color developed test tubes are compared with the standard colorimetric card to obtain the nitrite content of several groups, and then the average value is taken.

Images