A foodstuff microbial assisted detection apparatus

Abstract

The application discloses a kind of food microbial auxiliary detection equipment, it is related to food microbial auxiliary detection technical field, including base and several mounting blocks, the surface of mounting block is all fixedly connected with wiping water absorption block, the other side of mounting block is all fixedly connected with T-shaped block, T-shaped block, mounting block and wiping water absorption block form cleaning assembly, the food microbial auxiliary detection equipment is integrated by wiping water absorption block, mounting block and T-shaped block "cleaning assembly".After culture medium is poured, equipment will drive storage bottle to rotate, so that its bottle opening periphery is in full contact with the surface of clean wiping water absorption block rotated to the station.Wiping water absorption block can effectively absorb and clean the culture medium liquid remaining in bottle opening, fundamentally avoids the pollution problem caused by liquid drop, ensures the cleanness of operation area and the reliability of subsequent detection.

Description

Technical Field

[0001] This invention relates to the field of food microbial auxiliary detection technology, specifically to a microbial auxiliary detection device for food. Background Technology

[0002] In the field of food microbiology testing, microbial culture of food samples is a crucial step in confirming their hygiene and safety. This process typically involves pouring liquid microbial culture medium from a storage container into sterile petri dishes, followed by inoculation and incubation at a constant temperature. However, existing manual or semi-automatic procedures suffer from several long-standing technical challenges that directly impact testing efficiency, result accuracy, and the biosafety of the laboratory environment.

[0003] After pouring out the culture medium, a small amount of liquid will inevitably remain on the outside of the mouth of the storage bottle (such as an Erlenmeyer flask or reagent bottle). These residual culture medium droplets are very likely to drip down later, contaminating the work surface, equipment, or other samples. More importantly, the residual liquid may carry microorganisms, becoming a potential source of contamination and causing cross-contamination between different batches of test samples, seriously threatening the reliability of the test results.

[0004] When pouring liquid culture medium into petri dishes, ensuring the dishes are securely held is crucial. In existing equipment, the clamps holding the petri dishes are prone to slight displacement during liquid addition, leading to spillage or uneven distribution of the medium. Additionally, the initial impact of liquid on the bottom of the dish during pouring may cause splashing; these tiny droplets may land on the edges of the dish or the work surface, resulting in medium loss, affecting the accuracy of the added volume, and potentially becoming contamination points. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an auxiliary detection device for microorganisms in food, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a microbial auxiliary detection device for food, comprising a base and several mounting blocks. Each mounting block has a wiping and absorbing block fixedly connected to its surface, and a T-shaped block fixedly connected to the other side of each mounting block. The T-shaped blocks, mounting blocks, and wiping and absorbing blocks constitute a cleaning assembly. A drive shaft is rotatably connected to the top of the base via bearings, and a rotating frame is fixedly connected to the top of the drive shaft. A base plate is placed inside the rotating frame, and fixed plates are fixedly connected to both ends of the base plate. The cylindrical ends of the two fixed plates are rotatably connected to the inner wall of the rotating frame via bearings. A motor is fixedly connected to one side of the rotating frame, and the motor's output... The output end is connected to the cylindrical end of a fixed plate via a coupling. A front plate is fixedly connected between the two fixed plates and in front of the base plate via screws. A microbial culture medium storage bottle is placed on the top of the base and a mounting frame is fixedly connected to the top of the base and behind the rotating frame. A connecting arm is fixedly connected to the front surface of the mounting frame. A rotating shaft is rotatably connected to the bottom of the connecting arm via a bearing. An installation ring is fixedly fitted on the outer side of the rotating shaft. A second T-shaped groove is opened on both sides of the installation ring. The T-shaped blocks in the two sets of cleaning components are inserted into the second T-shaped grooves, limiting the installation block and the wiping and absorbing block to the outside of the installation ring. The testing equipment is controlled by an external controller.

[0007] The materials or structures used for the wiping absorbent blocks and the water-absorbing splash-proof blocks must meet the requirements of strong water absorption, good wiping and cleaning, minimal shedding, solvent resistance (culture medium), and good biocompatibility. The following materials can be used: Hydrophilic sponge: such as polyurethane (PU) sponge, polyvinyl alcohol (PVA) sponge, which can be chemically modified (such as by grafting hydrophilic groups) to give it excellent water absorption and retention properties, and is soft in texture with good wiping effect; Non-woven fabric / fiber felt: non-woven fabric or needle-punched felt made of hydrophilic fibers (such as cotton fiber, viscose fiber, or hydrophilically treated polyester / polypropylene fiber), which has a loose structure, fast liquid absorption speed, and relatively low cost; Absorbent cotton / absorbent paper: high-grade medical degreased cotton or special absorbent paper, which has high biocompatibility and strong liquid absorption capacity, but may be slightly weaker, and can be used as a disposable core absorbent layer.

[0008] Preferably, a feeding rail is fixedly connected to one side of the connecting arm. Several sets of cleaning components are placed inside the feeding rail. A first T-shaped groove is opened through the inner wall of the feeding rail near the mounting ring. The T-shaped blocks of the several sets of cleaning components are all inserted into the first T-shaped groove to stack the mounting block and the wiping and absorbing block inside the feeding rail. A bottom block is fixedly connected to the bottom of the feeding rail. A rear groove is opened at the rear of the feeding rail. The shape and size of the rear groove are matched with the shape and size of the wiping and absorbing block and the mounting block.

[0009] Preferably, one end of the base block is fixedly connected to a base support, which is located below the mounting ring.

[0010] Preferably, the base has a drain opening at its front end and below the second T-shaped groove.

[0011] Preferably, a drawer rack is fixedly connected to the front surface of the mounting bracket and below the connecting arm, a collection drawer is placed on the top of the drawer rack, and the top opening of the collection drawer is located below the drain outlet.

[0012] Preferably, the top of the base has two guide grooves, and a bidirectional sliding screw is rotatably connected to the two guide grooves through bearings. Guide blocks are installed on the outer side of the bidirectional sliding screw and inside the guide grooves, and the inner side of the two guide blocks cooperates with the outer side of the bidirectional sliding screw. A second motor is fixedly connected to the front surface of the base. The output end of the second motor is connected to one end of the bidirectional sliding screw through a coupling. A position fixing half-ring is fixedly connected to the top of the guide block and above the base. A limiting half-ring is fixedly connected to the top of the position fixing half-ring. A water-absorbing anti-splash block is replaceably glued to the inner side of the limiting half-ring. A microbial culture dish for food testing is placed on the top of the base and between the two position fixing half-rings.

[0013] Preferably, a mounting column is fixedly connected to the rear of the base plate, and a rear plate is fixedly connected to the front end of the mounting column. The microbial culture medium storage bottle is installed between the two fixed plates through the rear plate, the front plate, and the base plate.

[0014] Preferably, a drive cavity is formed inside the base and below the two guide grooves, and a transmission groove is formed inside the base, above the drive cavity and between the two guide grooves. A rotating rod is rotatably connected to the bottom of the drive cavity via a bearing. The top end of the rotating rod extends into the transmission groove. A meshing bevel gear is fixedly sleeved on the top end of the rotating rod and the outer side of the bidirectional sliding screw.

[0015] Preferably, the bottom end of the drive shaft extends into the drive cavity and is rotatably connected to the bottom of the drive cavity. A connecting rod is rotatably connected to the bottom of the drive cavity and to the left of the drive shaft via a bearing. A first one-way bearing is installed on the outer side of the rotating rod. A first sprocket connected by a chain drive is installed on the outer side of both the first one-way bearing and the connecting rod. The connecting rod and the drive shaft are connected by a first transmission gear set, which includes a large gear and a small gear. The large gear is fixedly sleeved on the outer side of the drive shaft, and the small gear is fixedly sleeved on the outer side of the connecting rod. The large gear and the small gear mesh with each other.

[0016] Preferably, a drive rod is rotatably connected to the bottom of the drive cavity via a bearing, and a connecting shaft is rotatably connected to the bottom of the drive cavity and to the left of the drive rod via a bearing. A second one-way bearing is installed on the outer side of the rotating rod and below the first sprocket. A second sprocket connected by a chain drive is installed on the outer side of both the second one-way bearing and the connecting shaft. The connecting shaft and the drive rod are connected by a second transmission gear set, which includes a large gear and a small gear. The large gear is fixedly sleeved on the outer side of the drive rod, and the small gear is fixedly sleeved on the outer side of the connecting shaft. The large gear and the small gear mesh with each other. The top ends of both the drive rod and the rotating shaft extend into the interior of the connecting arm and are rotatably connected to the top of the inner cavity of the connecting arm via bearings. A third sprocket connected by a chain drive is fixedly sleeved on the outer side of both the rotating shaft and the drive rod.

[0017] This invention provides an auxiliary detection device for microorganisms in food, which has the following beneficial effects: 1. This auxiliary microbial detection device for food integrates a "cleaning assembly" consisting of a wiping absorbent block, a mounting block, and a T-shaped block. After the culture medium is poured out, the device drives the storage bottle to rotate, ensuring that the outer circumference of its opening makes full contact with the clean surface of the wiping absorbent block, which has rotated to the workstation. The wiping absorbent block effectively absorbs and cleans any residual culture medium liquid at the bottle opening, fundamentally avoiding contamination caused by liquid dripping, and ensuring the cleanliness of the operating area and the reliability of subsequent testing.

[0018] 2. In this food microbial auxiliary detection equipment, used and contaminated cleaning components are transported to a specific position (slot) as the mounting ring rotates. When it reaches this position, the lower support (base) disappears, and the used cleaning components automatically fall through the slot into the collection tray below under gravity, completing automatic disposal without manual handling of contaminants. The equipment is equipped with a feeding rail, internally storing multiple sets of unused cleaning components. When the slot (second T-slot) on the mounting ring rotates below the feeding rail, the unused cleaning component at the bottom of the feeding rail automatically falls and engages with the mounting ring, completing the automatic loading of a new cleaning component. This ensures that clean wiping and absorbing pads are used for every cleaning operation, avoiding cross-contamination and guaranteeing continuous cleaning efficiency.

[0019] 3. This food microbial auxiliary detection device uses a motor-driven bidirectional sliding screw to move two fixed semi-rings with absorbent and splash-proof blocks in opposite directions. This stable and precise gripping of the food microbial culture dish is held and fixed at the designated liquid receiving position. This design not only prevents the culture dish from moving during liquid addition, ensuring accurate pouring of the culture medium, but the absorbent and splash-proof blocks on the inside also prevent liquid splashing during addition, further protecting the working environment and improving the accuracy of microbial detection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the right-side structure of the present invention; Figure 3 This is a schematic diagram of the cleaning mechanism of the present invention; Figure 4 This is a schematic diagram of the bottom support structure of the present invention from below; Figure 5 This is a cross-sectional view of the internal structure of the feeding rail of the present invention; Figure 6 This is a schematic diagram of the internal structure of the connecting arm of the present invention; Figure 7 This is a schematic diagram of the splash-proof mechanism of the present invention; Figure 8 This is a top view of the base structure of the present invention; Figure 9 This is a bottom view of the base portion of the present invention. Figure 10 This is a schematic diagram of the internal structure of the base of the present invention; Figure 11 This is a schematic diagram of the structure on the mounting ring of the present invention.

[0021] In the diagram: 1. Base; 2. Rotating frame; 3. Motor 1; 4. Fixing plate; 5. Front plate; 6. Microbial culture medium storage bottle; 7. Rear plate; 8. Mounting column; 10. Base plate; 11. Mounting frame; 12. Connecting arm; 13. Rotating shaft; 14. Mounting ring; 15. Base block; 16. Base support; 17. Feeding rail; 18. Rear groove; 19. Wiping and absorbing block; 20. First T-slot; 21. T-block; 22. Second T-slot; 23. Mounting block; 25. Drive cavity; 26. Slot; 27. Drawer rack; 28. Collection drawer; 29. Microbial culture dish for food testing; 30. Position fixing semi-ring; 31. Limiting semi-ring; 32. Water-absorbing anti-splash block; 33. Guide groove; 34. Bidirectional sliding screw; 35. Guide block; 36. Motor II; 37. Transmission groove; 38. Rotating rod; 39. Bevel gear; 40. Connecting rod; 41. Drive shaft; 42. First one-way bearing; 43. First sprocket; 44. First transmission gear set; 45. Connecting shaft; 46. Drive rod; 47. Second one-way bearing; 48. Second sprocket; 49. Second transmission gear set; 50. Third sprocket. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Example 1 Please see Figures 1 to 11 This invention provides a technical solution: a microbial auxiliary detection device for food, comprising a base 1 and several mounting blocks 23. Wiping and absorbing blocks 19 are fixedly connected to the surface of each mounting block 23, and T-shaped blocks 21 are fixedly connected to the other side of each mounting block 23. The T-shaped blocks 21, mounting blocks 23, and wiping and absorbing blocks 19 form a cleaning assembly. A drive shaft 41 is rotatably connected to the top of the base 1 via bearings, and a rotating frame 2 is fixedly connected to the top of the drive shaft 41. A base plate 10 is placed inside the rotating frame 2, and fixing plates 4 are fixedly connected to both ends of the base plate 10. The cylindrical ends of the two fixing plates 4 are rotatably connected to the inner wall of the rotating frame 2 via bearings. A motor 3 is fixedly connected to one side of the rotating frame 2, and the output end of the motor 3 is connected to... The coupling is connected to the cylindrical end of a fixed plate 4. A front plate 5 is fixedly connected between the two fixed plates 4 and in front of the base plate 10 by screws. A microbial culture medium storage bottle 6 for food microbial testing is placed on the top of the base plate 10. A mounting frame 11 is fixedly connected to the top of the base 1 and behind the rotating frame 2. A connecting arm 12 is fixedly connected to the front surface of the mounting frame 11. A rotating shaft 13 is rotatably connected to the bottom of the connecting arm 12 through a bearing. A mounting ring 14 is fixedly sleeved on the outside of the rotating shaft 13. A second T-shaped groove 22 is opened on both sides of the mounting ring 14. The T-shaped blocks 21 in the two sets of cleaning components are inserted into the second T-shaped groove 22, limiting the mounting block 23 and the wiping and absorbing block 19 to the outside of the mounting ring 14.

[0024] One side of the connecting arm 12 is fixedly connected to a feeding rail 17. Several sets of cleaning components are placed inside the feeding rail 17. A first T-shaped groove 20 is opened through the inner wall of the feeding rail 17 near the mounting ring 14. The T-shaped blocks 21 of the several sets of cleaning components are all inserted into the first T-shaped groove 20. The mounting block 23 and the wiping and absorbing block 19 are stacked and stored inside the feeding rail 17. A bottom block 15 is fixedly connected to the bottom of the feeding rail 17. A rear groove 18 is opened at the rear of the feeding rail 17. The shape and size of the rear groove 18 are matched with the shape and size of the wiping and absorbing block 19 and the mounting block 23. Through the rear groove 18, the mounting ring 14 can drive the T-shaped block 21, the mounting block 23 and the wiping and absorbing block 19 to move out of the feeding rail 17.

[0025] One end of the base block 15 is fixedly connected to a base support 16, which is located below the mounting ring 14 and prevents the T-shaped block 21 inside the second T-shaped groove 22 from falling off.

[0026] The base 16 has a drain 26 at its front end and below the second T-groove 22. When the cleaning component rotates to the top of the drain 26, there is no obstruction below the T-block 21, allowing the cleaning component to fall through the drain 26.

[0027] The front surface of the mounting bracket 11 and below the connecting arm 12 is fixedly connected to a drawer 27. A collection drawer 28 is placed on the top of the drawer 27, and the top opening of the collection drawer 28 is located below the drain outlet 26, so that the collection drawer 28 can collect the used cleaning components.

[0028] The base 1 has two guide grooves 33 on its top. A bidirectional sliding screw 34 is rotatably connected to the two guide grooves 33 through bearings. Guide blocks 35 are installed on the outer side of the bidirectional sliding screw 34 and inside the guide grooves 33. The inner side of the two guide blocks 35 cooperates with the outer side of the bidirectional sliding screw 34. A motor 36 is fixedly connected to the front surface of the base 1. The output end of the motor 36 is connected to one end of the bidirectional sliding screw 34 through a coupling. A position fixing half ring 30 is fixedly connected to the top of the guide blocks 35 and above the base 1. A limiting half ring 31 is fixedly connected to the top of the position fixing half ring 30. A water-absorbing anti-splash block 32 is replaceably glued to the inner side of the limiting half ring 31. A food testing microbial culture dish 29 is placed on the top of the base 1 between the two position fixing half rings 30. The water-absorbing anti-splash block 32 can be torn off periodically and a new water-absorbing anti-splash block 32 can be glued to the inner side of the limiting half ring 31.

[0029] The base plate 10 is fixedly connected to the rear of the mounting post 8, and the front end of the mounting post 8 is fixedly connected to the rear plate 7. The microbial culture medium storage bottle 6 for food microbial testing is installed between the two fixed plates 4 through the rear plate 7, the front plate 5, and the base plate 10. When the microbial culture medium storage bottle 6 needs to be replaced, the screws are unscrewed, the front plate 5 is removed from the front end of the base plate 10, the microbial culture medium storage bottle 6 is removed from the top of the base plate 10, the new microbial culture medium storage bottle 6 is placed on the top of the base plate 10, the front plate 5 is placed at the front end of the base plate 10, the screws are passed through the front plate 5 and screwed into the interior of the base plate 10, and the microbial culture medium storage bottle 6 is installed between the two fixed plates 4 through the rear plate 7, the front plate 5, and the base plate 10.

[0030] Example 2 Please see Figures 1 to 11 The present invention provides a technical solution: a driving cavity 25 is provided inside the base 1 and below the two guide grooves 33, and a transmission groove 37 is provided inside the base 1, above the driving cavity 25 and between the two guide grooves 33. A rotating rod 38 is rotatably connected to the bottom of the inner cavity of the driving cavity 25 through a bearing. The top end of the rotating rod 38 extends into the transmission groove 37. The top end of the rotating rod 38 and the outer side of the bidirectional sliding screw 34 are both fixedly fitted with meshing bevel gears 39. Through the two bevel gears 39, the rotation of the bidirectional sliding screw 34 can drive the rotating rod 38 to rotate.

[0031] The bottom end of the drive shaft 41 extends into the drive cavity 25 and is rotatably connected to the bottom of the drive cavity 25. A connecting rod 40 is rotatably connected to the bottom of the drive cavity 25 and to the left of the drive shaft 41 via a bearing. A first one-way bearing 42 is installed on the outside of the rotating rod 38. A first sprocket 43 connected by a chain drive is installed on the outside of both the first one-way bearing 42 and the connecting rod 40. The connecting rod 40 and the drive shaft 41 are connected by a first transmission gear set 44. The first transmission gear set 44 includes a large gear and a small gear. The large gear is fixedly sleeved on the outside of the drive shaft 41, and the small gear is fixedly sleeved on the outside of the connecting rod 40. The large gear and the small gear mesh with each other. The transmission ratio of the first transmission gear set 44, together with the lead of the bidirectional sliding screw 34 and the transmission ratio of all transmission links (including the first one-way bearing 42, sprockets, chains, etc.) from the rotating rod 38 to the drive shaft 41, constitute a total transmission ratio. The design of this overall transmission ratio allows the motor 2 36 to drive the bidirectional sliding screw 34 to complete a full reverse stroke of "releasing the petri dish" (i.e., the two fixed half-rings 30 move from the clamped position to the released position), while simultaneously driving the rotating frame 2 and the microbial culture medium storage bottle 6 to rotate more than 360 degrees. This ensures that the entire outer circumference of the bottle opening can contact and clean the wiping and absorbing block 19, and the bottle returns to its initial position at the end of the stroke.

[0032] The drive chamber 25 has a drive rod 46 rotatably connected to its bottom via a bearing. A connecting shaft 45 is also rotatably connected to the bottom of the drive chamber 25 and to the left of the drive rod 46 via a bearing. A second one-way bearing 47 is installed on the outer side of the rotating rod 38 and below the first sprocket 43. Both the second one-way bearing 47 and the connecting shaft 45 are equipped with second sprockets 48 connected by a chain drive. The connecting shaft 45 and the drive rod 46 are connected by a second transmission gear set 49, which includes a large gear and a small gear. The large gear is fixedly sleeved on the outer side of the drive rod 46. The small gear is fixedly sleeved on the outside of the connecting shaft 45, and the large gear meshes with the small gear. The top of the drive rod 46 and the top of the rotating shaft 13 both extend into the inside of the connecting arm 12 and are rotatably connected to the top of the inner cavity of the connecting arm 12 through bearings. The outer sides of the rotating shaft 13 and the drive rod 46 are both fixedly sleeved with a third sprocket 50 connected by a chain drive. The transmission ratio of the second transmission gear set 49, the lead of the bidirectional sliding screw 34, and the transmission ratio of all transmission links (including the second one-way bearing 47, sprockets, chains, etc.) from the rotating rod 38 to the drive rod 46 together constitute a total transmission ratio. This total transmission ratio design allows the motor 36 to drive the bidirectional sliding screw 34 to complete one complete forward rotation stroke of "clamping the petri dish" (i.e., the two fixed half-rings 30 move from the loose position to the clamping position) while simultaneously driving the mounting ring 14 to rotate 180 degrees, thereby synchronously completing the discarding, picking up, and station switching of the cleaning components.

[0033] Working principle: When using this food microbial auxiliary detection device, the food microbial culture dish 29 is placed on top of the base 1 between two position fixing semi-rings 30. Then, the output end of the motor 2 36 drives the bidirectional sliding screw 34 to rotate forward, so that the bidirectional sliding screw 34 drives the two guide blocks 35 to move towards the food microbial culture dish 29. The guide blocks 35 drive the position fixing semi-rings 30 to move towards the food microbial culture dish 29. The two position fixing semi-rings 30 hold the food microbial culture dish 29 and adjust the position of the food microbial culture dish 29 to the designated liquid receiving position. When the bidirectional sliding screw 34 rotates forward, it drives the rotating rod 38 to rotate via the bevel gear 39. This allows the rotating rod 38 to drive the second sprocket 48 to rotate via the second one-way bearing 47, but not via the first one-way bearing 42. At this time, the second sprocket 48 drives the connecting shaft 45 to rotate, which in turn drives the small gear to drive the large gear to rotate. The large gear then drives the drive rod 46 to rotate. The drive rod 46 then drives the rotating shaft 13 to rotate via the two third sprockets 50 and the chain belt. The rotating shaft 13 then drives the mounting ring 14 to rotate, causing the mounting ring 14 to drive the used cleaning component to move in a circular motion. When the cleaning component moves along the top of the base 16 to above the drain outlet 26, the T-block 21, located above the drain outlet 26, no longer provides any obstruction or limitation. This causes the T-shaped block 21, the mounting block 23, and the wiping and absorbing block 19 to fall into the collection drawer 28 through the drain 26 for storage. When the second T-shaped groove 22 on the mounting ring 14 rotates to the bottom of the feeding rail 17, the cleaning components stacked inside the feeding rail 17 fall down, causing the T-shaped block 21 inside the first T-shaped groove 20 to fall into the second T-shaped groove 22. This causes the mounting block 23, the wiping and absorbing block 19, and the mounting ring 14 to be installed on the outside of the mounting ring 14. During the rotation, the second T-shaped groove 22 carries the T-shaped block 21, the mounting block 23, and the wiping and absorbing block 19 to rotate, causing the wiping and absorbing block 19 to rotate along the top of the base 16 to the cleaning station for the microbial culture medium storage bottle 6, so that the surface of the wiping and absorbing block 19 comes into contact with the outside of the microbial culture medium storage bottle 6. Then, the output of motor 3 drives the fixed plate 4 to rotate, so that the fixed plate 4 drives the microbial culture medium storage bottle 6 to rotate through the bottom plate 10, the mounting column 8, the rear plate 7 and the front plate 5, and adjusts the angle of the microbial culture medium storage bottle 6, so that the food microbial culture medium for testing inside the microbial culture medium storage bottle 6 is poured into the food testing microbial culture dish 29. Then, the output of motor 3 drives the fixed plate 4 to reset and rotate, so that the fixed plate 4 drives the microbial culture medium storage bottle 6 to reset and rotate through the bottom plate 10, the mounting column 8, the rear plate 7 and the front plate 5, so that the angle of the microbial culture medium storage bottle 6 returns to the vertical state. Finally, the output of motor 2 36 drives the bidirectional sliding screw 34 to reverse, causing the bidirectional sliding screw 34 to drive the two guide blocks 35 to move away from the food testing microbial culture dish 29. This causes the guide blocks 35 to drive the fixed half ring 30 to move away from the food testing microbial culture dish 29, so that the dish lid can be placed on the top outside of the food testing microbial culture dish 29. Then, the food testing microbial culture dish 29 is taken out for microbial culture and then the microorganisms are tested. When the bidirectional sliding screw 34 reverses, the bidirectional sliding screw 34 drives the rotating rod 38 to reverse through two bevel gears 39. At this time, the rotating rod 38 can drive the first sprocket 43 to rotate through the first one-way bearing 42, but the rotating rod 38 cannot drive the second sprocket 48 to rotate through the second one-way bearing 47. The rotating rod 38 drives the connecting rod 40 to rotate through the two first sprockets 43 and the chain belt, so that the connecting rod 40 drives the small gear to drive the large gear to rotate, so that the large gear drives the drive shaft 41 to rotate, so that the drive shaft 41 drives the rotating frame 2 to drive the fixed plate 4, the front plate 5, the bottom plate 10, the mounting column 8, the rear plate 7, and the microbial culture medium storage bottle 6 to rotate, so that the outer periphery of the bottle mouth of the microbial culture medium storage bottle 6 is in contact with the surface of the wiping and absorbing block 19. The wiping and absorbing block 19 absorbs the microbial culture medium for detecting food microorganisms on the outer periphery of the bottle mouth of the microbial culture medium storage bottle 6. Finally, the rotating frame 2 and the microbial culture medium storage bottle 6 rotate back to the initial position and continue to work.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A microbial auxiliary detection device for food, characterized in that: The system includes a base (1) and several mounting blocks (23). Wiping and absorbing blocks (19) are connected to the surface of each mounting block (23), and a T-shaped block (21) is fixedly connected to the other side of each mounting block (23). The T-shaped block (21), mounting blocks (23), and wiping and absorbing blocks (19) form a cleaning assembly. A drive shaft (41) is rotatably connected to the top of the base (1), and a rotating frame (2) is fixedly connected to the top of the drive shaft (41). A base plate (10) is placed inside the rotating frame (2), and fixed plates (4) are fixedly connected to both ends of the base plate (10). The cylindrical ends of the two fixed plates (4) are rotatably connected to the inner wall of the rotating frame (2) via bearings. A motor (3) is fixedly connected to one side of the rotating frame (2), and the output end of the motor (3) is connected to the cylindrical end of one of the fixed plates (4). A front plate (5) is fixedly connected between two fixed plates (4) and in front of the base plate (10) by screws. A microbial culture medium storage bottle (6) is placed on the top of the base plate (10). An mounting frame (11) is fixedly connected to the top of the base (1) and behind the rotating frame (2). A connecting arm (12) is fixedly connected to the front surface of the mounting frame (11). A rotating shaft (13) is rotatably connected to the bottom of the connecting arm (12) by a bearing. An mounting ring (14) is fixedly sleeved on the outside of the rotating shaft (13). A second T-shaped groove (22) is opened on both sides of the mounting ring (14). The T-shaped blocks (21) in the two sets of cleaning components are inserted into the second T-shaped groove (22) to limit the mounting block (23) and the wiping and absorbing block (19) to the outside of the mounting ring (14).

2. The auxiliary detection device for microorganisms in food according to claim 1, characterized in that: A feeding rail (17) is fixedly connected to one side of the connecting arm (12). Several sets of cleaning components are placed inside the feeding rail (17). A first T-shaped groove (20) is opened on the inner wall of the feeding rail (17) near the mounting ring (14). The T-shaped blocks (21) in several sets of cleaning components are inserted into the first T-shaped groove (20) to stack the mounting block (23) and the wiping and absorbing block (19) inside the feeding rail (17). A bottom block (15) is fixedly connected to the bottom of the feeding rail (17). A rear groove (18) is opened at the rear of the feeding rail (17). The shape and size of the rear groove (18) match the shape and size of the wiping and absorbing block (19) and the mounting block (23).

3. The auxiliary detection device for microorganisms in food according to claim 2, characterized in that: One end of the base block (15) is fixedly connected to a base support (16), which is located below the mounting ring (14).

4. The auxiliary detection device for microorganisms in food according to claim 3, characterized in that: The base (16) has a vent (26) at its front end and below the second T-groove (22).

5. The auxiliary detection device for microorganisms in food according to claim 4, characterized in that: A drawer rack (27) is fixedly connected to the front surface of the mounting bracket (11) and below the connecting arm (12). A collection drawer (28) is placed on the top of the drawer rack (27), and the top opening of the collection drawer (28) is located below the drain (26).

6. The auxiliary detection device for microorganisms in food according to claim 1, characterized in that: The base (1) has two guide grooves (33) on its top. The two guide grooves (33) are rotatably connected to a bidirectional sliding screw (34) through bearings. The outer side of the bidirectional sliding screw (34) and inside the guide groove (33) are equipped with guide blocks (35). The inner side of the two guide blocks (35) is engaged with the outer side of the bidirectional sliding screw (34). The front surface of the base (1) is fixedly connected to a second motor (36). The output end of the second motor (36) is connected to one end of the bidirectional sliding screw (34) through a coupling. The top of the guide blocks (35) and above the base (1) are fixedly connected to a position fixing half ring (30). The top of the position fixing half ring (30) is fixedly connected to a limiting half ring (31). The inner side of the limiting half ring (31) is replaceably glued with a water-absorbing anti-splash block (32). The top of the base (1) and between the two position fixing half rings (30) is placed a microbial culture dish (29) for food testing.

7. The auxiliary detection device for microorganisms in food according to claim 1, characterized in that: The base plate (10) is fixedly connected to the rear of the mounting column (8), and the front end of the mounting column (8) is fixedly connected to the rear plate (7). The microbial culture medium storage bottle (6) is installed between the two fixed plates (4) through the rear plate (7), the front plate (5), and the base plate (10).

8. The auxiliary detection device for microorganisms in food according to claim 1, characterized in that: A drive cavity (25) is provided inside the base (1) and below the two guide grooves (33). A transmission groove (37) is provided inside the base (1) above the drive cavity (25) and between the two guide grooves (33). A rotating rod (38) is rotatably connected to the bottom of the inner cavity of the drive cavity (25) through a bearing. The top end of the rotating rod (38) extends into the transmission groove (37). A bevel gear (39) is fixedly sleeved on the top end of the rotating rod (38) and the outer side of the bidirectional sliding screw (34).

9. The auxiliary detection device for microorganisms in food according to claim 8, characterized in that: The bottom end of the drive shaft (41) extends into the drive cavity (25) and is rotatably connected to the bottom of the drive cavity (25). A connecting rod (40) is rotatably connected to the bottom of the drive cavity (25) and to the left of the drive shaft (41) via a bearing. A first one-way bearing (42) is installed on the outside of the rotating rod (38). A first sprocket (43) is installed on the outside of both the first one-way bearing (42) and the connecting rod (40) via a chain drive. The connecting rod (40) and the drive shaft (41) are connected by a first transmission gear set (44). The first transmission gear set (44) includes a large gear and a small gear. The large gear is fixedly sleeved on the outside of the drive shaft (41), and the small gear is fixedly sleeved on the outside of the connecting rod (40). The large gear and the small gear mesh with each other.

10. The auxiliary detection device for microorganisms in food according to claim 9, characterized in that: The bottom of the inner cavity of the drive chamber (25) is rotatably connected to the drive rod (46) via a bearing. The bottom of the inner cavity of the drive chamber (25) and to the left of the drive rod (46) is rotatably connected to the connecting shaft (45) via a bearing. A second one-way bearing (47) is installed on the outer side of the rotating rod (38) and below the first sprocket (43). Both the second one-way bearing (47) and the outer side of the connecting shaft (45) are equipped with second sprockets (48) connected by a chain drive. The connecting shaft (45) and the drive rod (46) are connected by a second transmission gear set (…). 49) Transmission connection, and the second transmission gear set (49) includes a large gear and a small gear. The large gear is fixedly sleeved on the outside of the drive rod (46), and the small gear is fixedly sleeved on the outside of the connecting shaft (45). The large gear and the small gear mesh with each other. The top ends of the drive rod (46) and the rotating shaft (13) extend into the interior of the connecting arm (12) and are rotatably connected to the top of the inner cavity of the connecting arm (12) through bearings. The outer sides of the rotating shaft (13) and the drive rod (46) are both fixedly sleeved with a third sprocket (50) that is connected by a chain belt.

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