Electronic nose equipment based on food detection

Abstract

The utility model relates to the field of food detection, and discloses an electronic nose device based on food detection, which comprises an electronic nose body, an air inlet pipe is arranged on the front wall of the electronic nose body, a filter screen is fixedly connected in the electronic nose body, two guide rods are fixedly connected on the inner wall of the electronic nose body, and the two guide rods are arranged on the air inlet pipe. Sliding plates are slidably connected to the outer walls of the two guide rods, driving assemblies are arranged at the tops of the outer walls of the sliding plates, a plurality of cleaning brushes are installed on the sides, close to the filter screen, of the sliding plates, reciprocating assemblies are arranged at the bottoms of the outer walls of the sliding plates, and a plurality of cleaning assemblies are arranged on the right sides of the outer walls of the sliding plates; a striking assembly is arranged in the electronic nose body. The micro motor in the driving assembly drives the gear I to slide along the rack I and drives the sliding plate to move, so that the cleaning brush is tightly attached to the surface of the filter screen, impurities on the filter screen are automatically and efficiently cleaned, frequent manual disassembly and cleaning are not needed, the maintenance cost and the time cost are reduced, and the air permeability of the filter screen is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of food detection, in particular to an electronic nose device based on food detection. Background Technique

[0002] An electronic nose is an intelligent detection instrument developed by simulating the animal olfactory system. It can sense and analyze volatile odor substances through a sensor array, quickly and accurately identify the odor characteristics of food, and is widely used in many scenarios such as food quality detection, authenticity identification, and shelf-life assessment. In food processing enterprises, it is used to monitor the odor changes during the product production process in real time to ensure the stable product quality; in food safety supervision departments, it can conduct spot checks on foods in the market and quickly screen out foods that may have quality problems.

[0003] When the existing electronic nose works, impurities carried by the external gas are easily attached to the filter screen used for filtration. At present, most of them require manual frequent disassembly of the filter screen for cleaning, which is not only cumbersome in operation, consuming a large amount of labor and time costs, but also the equipment may be damaged due to improper operation during the disassembly process, affecting the normal progress of the detection work. Moreover, if the filter screen is not cleaned in time or not thoroughly, the accumulation of impurities will seriously affect the air permeability of the filter screen, thereby reducing the accuracy and stability of the electronic nose for food odor detection and making it difficult to maintain good detection performance. For this reason, an electronic nose device based on food detection is proposed. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides an electronic nose device based on food detection, aiming to improve the problem that impurities carried by the external gas are easily attached to the filter screen used for filtration in the existing technology. At present, most of them require manual frequent disassembly of the filter screen for cleaning, which is not only cumbersome in operation, consuming a large amount of labor and time costs, but also the equipment may be damaged due to improper operation during the disassembly process, affecting the normal progress of the detection work.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: An electronic nose device based on food detection, including an electronic nose body, an air inlet pipe is installed on the front wall of the electronic nose body, a filter screen is fixedly connected inside the electronic nose body, two guide rods are fixedly connected to the inner wall of the electronic nose body, a sliding plate is slidably connected to the outer walls of the two guide rods, a driving component is arranged on the top of the outer wall of the sliding plate, a plurality of cleaning brushes are installed on one side of the sliding plate close to the filter screen, a reciprocating component is arranged on the bottom of the outer wall of the sliding plate, a plurality of cleaning components are arranged on the right side of the outer wall of the sliding plate, and a striking component is arranged inside the electronic nose body;

[0006] The driving component includes a micro motor and a first rack. The micro motor is fixedly connected to the top of the outer wall of the sliding plate, the first rack is fixedly connected to the inner top wall of the electronic nose body, and the output end of the micro motor is fixedly connected to a first gear.

[0007] As a further description of the above technical solution:

[0008] The reciprocating component includes a second gear and a second rack. The second gear is rotatably connected to the bottom of the outer wall of the sliding plate, the second rack is fixedly connected to the bottom of the inner wall of the electronic nose body, a connecting rod is fixedly connected to the top of the second gear, and a first rotating shaft is fixedly connected to the end of the connecting rod away from the second gear.

[0009] As a further description of the above technical solution:

[0010] The cleaning component includes a plurality of rotating frames. The rotating frames are rotatably connected to the right side of the outer wall of the sliding plate. A connecting plate is fixedly connected to the outer wall of the rotating frames. A spring is fixedly connected to one side of the connecting plate away from the rotating frames. A hitting ball is fixedly connected to the end of the spring away from the connecting plate.

[0011] As a further description of the above technical solution:

[0012] The hitting component includes a second rotating shaft and a third rotating shaft. Both the second rotating shaft and the third rotating shaft are rotatably connected inside the electronic nose body. A first wire roller is fixedly connected to the middle of the outer wall of the second rotating shaft. A second wire roller is fixedly connected to the middle of the outer wall of the third rotating shaft. A rope is sleeved between the first wire roller and the second wire roller. The end of the rope away from the first wire roller is fixedly connected to the outer wall of the sliding plate. Two eccentric wheels are fixedly connected to the outer wall of the third rotating shaft. Two torsion springs are sleeved on the outer wall of the third rotating shaft.

[0013] As a further description of the above technical solution:

[0014] The cleaning brush and the filter screen are in contact with each other, and the first gear and the first rack are meshed with each other.

[0015] As a further description of the above technical solution:

[0016] The second gear and the second rack are meshed with each other, and the outer wall of the first rotating shaft is slidably connected inside the rotating frame.

[0017] As a further description of the above technical solution:

[0018] The protruding part of the eccentric wheel and the filter screen are in contact with each other, and a collection box is fixedly connected to the bottom of the electronic nose body.

[0019] As a further description of the above technical solution:

[0020] One end of the torsion spring is fixedly connected to the third rotating shaft, and the other end of the torsion spring is fixedly connected to the inner wall of the electronic nose body.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the micro-motor in the driving component drives the first gear to slide along the first rack, driving the sliding plate to move, so that the cleaning brush is closely attached to the surface of the filter screen, automatically and efficiently cleaning the impurities on the filter screen, without the need for frequent manual disassembly and cleaning, reducing the maintenance cost and time cost, and ensuring the air permeability of the filter screen and maintaining good detection performance.

[0023] 2. In the utility model, the reciprocating component drives the connecting rod and the first rotating shaft through the meshing transmission of the second gear and the second rack, making the rotating frame reciprocate, and then driving the hitting ball in the cleaning component to hit the sliding plate, which not only assists the cleaning brush to clean the filter screen, but also effectively reduces the residual impurities on the cleaning brush itself, ensuring the lasting and stable cleaning effect.

[0024] 3. In the utility model, the hitting component uses the movement of the sliding plate to stretch the rope, driving the first wire roller, the second wire roller and the third rotating shaft to rotate, so that the eccentric wheel periodically hits the filter screen, shaking off stubborn impurities, cooperating with the cleaning brush, significantly improving the cleaning efficiency of the filter screen, ensuring the cleanliness inside the electronic nose, and extending the service life of the equipment. Description of the Drawings

[0025] Figure 1 is a three-dimensional view of an electronic nose device for food detection proposed by the utility model;

[0026] Figure 2 is a filter screen diagram of an electronic nose device for food detection proposed by the utility model;

[0027] Figure 3 is a schematic diagram of the sliding plate of an electronic nose device for food detection proposed by the utility model;

[0028] Figure 4 is a schematic diagram of the rotating frame of an electronic nose device for food detection proposed by the utility model;

[0029] Figure 5 is a schematic diagram of the eccentric shaft of an electronic nose device for food detection proposed by the utility model.

[0030] Legend Explanation:

[0031] 1. Electronic nose body; 2. Intake pipe; 3. Filter screen; 4. Guide rod; 5. Slide plate; 6. Micro motor; 7. First gear; 8. First rack; 9. Cleaning brush; 10. Second gear; 11. Connecting rod; 12. First rotating shaft; 13. Second rack; 14. Rotating frame; 15. Connecting plate; 16. Spring; 17. Striking ball; 18. Second rotating shaft; 19. First wire roller; 20. Third rotating shaft; 21. Second wire roller; 22. Eccentric wheel; 23. Torsion spring; 24. Rope; 25. Collection box. Detailed implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] Refer to Figures 1 - 3 , an embodiment provided by the present invention: An electronic nose device based on food detection includes an electronic nose body 1. An intake pipe 2 is installed on the front wall of the electronic nose body 1. The intake pipe 2 enables the odor of the food to be detected to smoothly enter the interior of the electronic nose body 1, providing a gas source channel for subsequent detection. A filter screen 3 is fixedly connected inside the electronic nose body 1. The filter screen 3 can preliminarily filter the gas entering the electronic nose body 1 to prevent large particle impurities, etc. from entering and affecting the normal operation of the detection components. Two guide rods 4 are fixedly connected to the inner wall of the electronic nose body 1. A slide plate 5 is slidably connected to the outer walls of the two guide rods 4. The guide rods 4 provide a stable guiding function for the sliding of the slide plate 5, enabling the slide plate 5 to move smoothly inside the electronic nose body 1 along a predetermined trajectory. A driving component is arranged on the top of the outer wall of the slide plate 5. The driving component is used to provide power for the movement of the slide plate 5. A plurality of cleaning brushes 9 are installed on one side of the slide plate 5 close to the filter screen 3. The cleaning brushes 9 are used to clean the impurities on the surface of the filter screen 3 during the process of sliding along with the slide plate 5. A reciprocating component is arranged at the bottom of the outer wall of the slide plate 5. The reciprocating component is used to drive the subsequent cleaning components to move. A plurality of cleaning components are arranged on the right side of the outer wall of the slide plate 5. The cleaning components are used to clean the cleaning brushes 9, so that the cleaning brushes 9 are always in a good cleaning state. A striking component is arranged inside the electronic nose body 1. The striking component is used to strike the filter screen 3, so that the impurities on the filter screen 3 can quickly fall off;

[0034] Refer to Figure 3, the driving component includes a micro motor 6 and a first rack 8. The micro motor 6 is fixedly connected to the top of the outer wall of the sliding plate 5. The micro motor 6 is the main power source of the entire driving component, providing power for the movement of subsequent other components. The first rack 8 is fixedly connected to the inner top wall of the electronic nose body 1. The first rack 8 provides a guiding function for the sliding of the first gear 7, enabling the first gear 7 to perform a linear motion along the first rack 8 when rotating. The output end of the micro motor 6 is fixedly connected to the first gear 7. When the micro motor 6 drives the first gear 7 to rotate, it will perform a linear motion along the first rack 8 through meshing with the first rack 8.

[0035] Refer to Figure 4 , the reciprocating component includes a second gear 10 and a second rack 13. The second gear 10 is rotatably connected to the bottom of the outer wall of the sliding plate 5, facilitating the linear motion of the second gear 10 driven by the sliding of the sliding plate 5. The second rack 13 is fixedly connected to the bottom of the inner wall of the electronic nose body 1. The second rack 13 meshes with the second gear 10 and rotates during the linear motion of the second gear 10, thereby driving other components to move. A connecting rod 11 is fixedly connected to the top of the second gear 10. The connecting rod 11 is used to transmit the rotation of the second gear 10, thereby driving the subsequent first rotating shaft 12 to perform a circular motion. One end of the connecting rod 11 away from the second gear 10 is fixedly connected to the first rotating shaft 12. The first rotating shaft 12 rotates driven by the connecting rod 11 and realizes the reciprocating motion of the rotating frame 14 by sliding inside the rotating frame 14.

[0036] Refer to Figure 3 and Figure 4 , the cleaning component includes a plurality of rotating frames 14. The rotating frames 14 are rotatably connected to the right side of the outer wall of the sliding plate 5. The rotating frames 14 perform reciprocating motions driven by the first rotating shaft 12, thereby rotating on the outer wall of the sliding plate 5. A connecting plate 15 is fixedly connected to the outer wall of the rotating frame 14. The connecting plate 15 is used to transmit the rotation of the rotating frame 14 and perform steering at the same time. A spring 16 is fixedly connected to one side of the connecting plate 15 away from the rotating frame 14. The spring 16 is used to provide elastic force so that the hitting ball 17 can always be in contact with the sliding plate 5. One end of the spring 16 away from the connecting plate 15 is fixedly connected to the hitting ball 17. The hitting ball 17 rotates driven by the connecting plate 15 and hits the sliding plate 5 to reduce the impurities remaining on the sliding plate 5 during cleaning.

[0037] Refer to Figure 5, the striking assembly includes a second rotating shaft 18 and a third rotating shaft 20. Both the second rotating shaft 18 and the third rotating shaft 20 are rotatably connected inside the electronic nose body 1. The second rotating shaft 18 and the third rotating shaft 20 rotate, thereby driving the subsequent first wire roller 19 and second wire roller 21 to rotate. A first wire roller 19 is fixedly connected to the middle of the outer wall of the second rotating shaft 18, and a second wire roller 21 is fixedly connected to the middle of the outer wall of the third rotating shaft 20. The first wire roller 19 and the second wire roller 21 are used to store the rope 24, and rotate during the winding or releasing process of the rope 24. A rope 24 is sleeved between the first wire roller 19 and the second wire roller 21. By setting the rope 24 to connect the first wire roller 19 and the second wire roller 21, when one of the second rotating shaft 18 or the third rotating shaft 20 rotates, it can drive the other to rotate. One end of the rope 24 away from the first wire roller 19 is fixedly connected to the outer wall of the sliding plate 5, facilitating the stretching of the rope 24 by the sliding of the sliding plate 5, thereby driving the second rotating shaft 18 and the third rotating shaft 20 to rotate. Two eccentric wheels 22 are fixedly connected to the outer wall of the third rotating shaft 20. The eccentric wheels 22 rotate under the drive of the third rotating shaft 20, thereby striking the filter screen 3, so that the impurities on the surface of the filter screen 3 can quickly fall off. Two torsion springs 23 are sleeved on the outer wall of the third rotating shaft 20. The torsion springs 23 are used to store potential energy when the third rotating shaft 20 rotates, and release the stored potential energy after the external force disappears, thereby driving the third rotating shaft 20 to reset.

[0038] Refer to Figure 3 , the cleaning brush 9 abuts against the filter screen 3. The abutment enables the cleaning brush 9 to effectively clean the surface of the filter screen 3 during the sliding process following the sliding plate 5. The first gear 7 meshes with the first rack 8. The meshing enables the first gear 7 to effectively slide along the first rack 8 during the rotation process.

[0039] Refer to Figure 3 , the second gear 10 meshes with the second rack 13. The meshing enables the second gear 10 to rotate itself through the meshing with the second rack 13 during the linear motion process. The outer wall of the first rotating shaft 12 is slidably connected inside the rotating frame 14. When the first rotating shaft 12 makes a circular motion driven by the second gear 10, it will drive the rotating frame 14 to perform a reciprocating motion, and then drive the subsequent striking ball 17 to strike the sliding plate 5.

[0040] Refer to Figure 2 and Figure 5 , the protruding part of the eccentric wheel 22 abuts against the filter screen 3, enabling the eccentric wheel 22 to effectively strike the filter screen 3 during the rotation process, so that the impurities on the filter screen 3 can quickly fall off. A collection box 25 is fixedly connected to the bottom of the electronic nose body 1. The collection box 25 is used to collect the cleaned impurities.

[0041] Refer to Figure 5, One end of the torsion spring 23 is fixedly connected to the third rotating shaft 20, and the other end of the torsion spring 23 is fixedly connected to the inner wall of the electronic nose body 1. When the third rotating shaft 20 rotates, it will drive the torsion spring 23 to rotate, so that the torsion spring 23 stores potential energy. When the external force disappears, the torsion spring 23 will release the stored potential energy, thereby driving the third rotating shaft 20 to reset.

[0042] Working principle: When it is necessary to detect the odor of food, the food to be detected is placed inside a specific container. Subsequently, the intake pipe 2 is inserted into the container, and the electronic nose body 1 is started. After the electronic nose body 1 is started, it will inhale the gas through the brushless drive motor inside. When the gas enters the electronic nose body 1, it will first pass through the filter screen 3 to filter the impurities in the gas. Subsequently, the micro motor 6 is started. When the micro motor 6 is started, it will drive the first gear 7 on its output end to rotate. When the first gear 7 rotates, it will slide linearly along the rack 8 through meshing with the rack 8, further causing the slide plate 5 to slide. During the sliding process of the slide plate 5, it will drive the cleaning brush 9 to slide and clean the surface of the filter screen 3. During the sliding process of the slide plate 5, it will also drive the second gear 10 at its bottom to move linearly. The linear movement of the second gear 10 will cause the second gear 10 to rotate through meshing with the second rack 13. When the second gear 10 rotates, it will drive the connecting rod 11 to rotate. When the connecting rod 11 rotates, it will drive the first rotating shaft 12 to perform a circular motion. The first rotating shaft 12 slides inside the rotating frame 14. Therefore, when the first rotating shaft 12 performs a circular motion, it will drive the rotating frame 14 to rotate, and drive the connecting plate 15 to rotate through the rotation of the rotating frame 14, so that the striking ball 17 strikes the slide plate 5 to reduce the impurity residue on the cleaning brush 9.

[0043] During the sliding process of the slide plate 5, the rope 24 will also be stretched. When the rope 24 is stretched, it will drive the first wire roller 19 to rotate. When the first wire roller 19 rotates, it will drive the second wire roller 21 to rotate through the rope 24. The rotation of the second wire roller 21 drives the third rotating shaft 20 to rotate. When the third rotating shaft 20 rotates, it will drive the eccentric wheel 22 to rotate. When the eccentric wheel 22 rotates, it will strike the filter screen 3 through eccentric motion, so that the impurities on the surface of the filter screen 3 can quickly fall off. During the rotation process of the eccentric wheel 22, it will also drive the torsion spring 23 to rotate, so that the torsion spring 23 is wound up and stores potential energy. When the external force disappears, the torsion spring 23 will reset, further driving the eccentric wheel 22 to reverse, so that the third rotating shaft 20 is reset.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electronic nose device based on food detection, comprising an electronic nose body (1), characterized in that: An air intake pipe (2) is installed on the front wall of the electronic nose body (1); a filter screen (3) is fixedly connected inside the electronic nose body (1); two guide rods (4) are fixedly connected to the inner wall of the electronic nose body (1); a slide plate (5) is slidably connected to the outer walls of the two guide rods (4); a driving component is arranged on the top of the outer wall of the slide plate (5); a plurality of cleaning brushes (9) are installed on a side of the slide plate (5) close to the filter screen (3); a reciprocating component is arranged on the bottom of the outer wall of the slide plate (5); a plurality of cleaning components are arranged on the right side of the outer wall of the slide plate (5); and a striking component is arranged inside the electronic nose body (1); The driving assembly comprises a micro motor (6) and a rack one (8), wherein the micro motor (6) is fixedly connected to the top of the outer wall of the slide plate (5), the rack one (8) is fixedly connected to the inner top wall of the electronic nose body (1), and the output end of the micro motor (6) is fixedly connected to a gear one (7).

2. The electronic nose device based on food detection according to claim 1, characterized in that: The reciprocating assembly comprises a second gear (10) and a second rack (13), wherein the second gear (10) is rotatably connected to the bottom of the outer wall of the slide plate (5), and the second rack (13) is fixedly connected to the bottom of the inner wall of the electronic nose body (1). A connecting rod (11) is fixedly connected to the top of the second gear (10), and an end of the connecting rod (11) away from the second gear (10) is fixedly connected to a rotating shaft (12).

3. The electronic nose device based on food detection according to claim 2, characterized in that: The cleaning assembly comprises a plurality of rotating frames (14), wherein the rotating frames (14) are rotatably connected to the right side of the outer wall of the slide plate (5), a connecting plate (15) is fixedly connected to the outer wall of the rotating frame (14), a spring (16) is fixedly connected to a side of the connecting plate (15) away from the rotating frame (14), and a striking ball (17) is fixedly connected to one end of the spring (16) away from the connecting plate (15).

4. The electronic nose device based on food detection according to claim 1, characterized in that: The striking assembly comprises a second rotating shaft (18) and a third rotating shaft (20), wherein the second rotating shaft (18) and the third rotating shaft (20) are both rotatably connected to the inside of the electronic nose body (1), a wire roller (19) is fixedly connected to the middle of the outer wall of the second rotating shaft (18), and a wire roller (21) is fixedly connected to the middle of the outer wall of the third rotating shaft (20), a rope (24) is sleeved between the wire rollers (19) and the wire rollers (21), and one end of the rope (24) away from the wire roller (19) is fixedly connected to the outer wall of the slide plate (5), two eccentric wheels (22) are fixedly connected to the outer wall of the third rotating shaft (20), and two torsion springs (23) are sleeved on the outer wall of the third rotating shaft (20).

5. The electronic nose device based on food detection according to claim 3, characterized in that: The cleaning brush (9) is in contact with the filter screen (3), and the gear one (7) is meshed with the rack one (8).

6. The electronic nose device based on food detection according to claim 3, characterized in that: The second gear (10) is meshed with the second rack (13), and the outer wall of the first rotating shaft (12) is slidably connected to the inside of the rotating frame (14).

7. The electronic nose device based on food detection according to claim 4, characterized in that: The protruding portion of the eccentric wheel (22) is in contact with the filter screen (3), and a collecting box (25) is fixedly connected to the bottom of the electronic nose body (1).

8. The electronic nose device based on food detection according to claim 4, characterized in that: One end of the torsion spring (23) is fixedly connected to the rotating shaft three (20), and the other end of the torsion spring (23) is fixedly connected to the inner wall of the electronic nose body (1).

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