Culture device for food detection

Abstract

The invention discloses a culture device for food detection, and relates to the technical field of food microorganism culture, the culture device comprises a culture box body and a control panel, the control panel is fixedly connected to the top of the outer surface of the culture box body, and the culture device is characterized in that a culture assembly is arranged in the culture box body; the culture assembly comprises a plurality of groups of separation grooves which are formed in the inner wall of the main box body of the culture box body and are distributed in a linear array. The containing cavities at the same horizontal height can be located in the same space through the partition plates, the storage boxes at different heights can be layered through the partition plates, culture dishes of different food samples can be stored in the storage boxes at different horizontal heights, and then different microorganism culture detection on different food samples is achieved; according to the device, the differentiated culture requirements of various microorganisms or food samples are met, batch operation or arrangement of multiple devices is not needed, multi-environment parallel culture is achieved through a single device, the laboratory space is saved, and the device purchase and energy consumption cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food microorganism culture, in particular to a culture device for food detection. BACKGROUND

[0002] Food safety is a key link to protect public health and social stability, with the globalization and complexity of food industry chain, foodborne diseases caused by microbial contamination, chemical residues and other problems occur frequently, as a core means, microbial culture detection needs to analyze the indicators such as pathogenic bacteria and total bacterial count in food, the culture detection process includes sample pretreatment, inoculation of culture dish, incubator constant temperature and humidity culture and result observation, and the incubator needs to provide stable environment, the traditional incubator adopts integral chamber design, and the samples are placed on the net frame, and the door of the incubator needs to be opened for operation.

[0003] The existing incubator is easy to cause environmental fluctuation when the door is opened for taking and placing, because of the lack of local isolation design, the opening of the door will cause the sudden change of the temperature, humidity and other suitable microbial growth environment in the incubator, and it needs tens of minutes to recover after the door is closed, which causes the death or abnormal growth of sensitive microorganisms, and finally causes poor data repeatability, that is, inaccurate data, and in the process of recovering the suitable microbial growth environment, the energy consumption is increased, and when the door is opened, the chamber air flows freely, the sample aerosol is easy to diffuse, and the outside bacteria enter with the opening of the door, and the pollution probability increases dramatically during high-throughput culture detection. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a culture device for food detection.

[0005] The technical scheme is as follows: A culture device for food detection, comprising an incubator body and a controller, the controller is fixedly connected to the top of the outer surface of the incubator body, and the inside of the incubator body is provided with a culture assembly; The culture assembly comprises a plurality of linear array arranged separation grooves opened in the inner wall of the main box body of the incubator body, two separation grooves at the same horizontal height are a group, a separation plate is fixedly connected between the two separation grooves of each group, a plurality of linear array arranged frame plates are fixedly connected in the inside of the incubator body, a plurality of frame plates at the same horizontal height are a group, a plurality of first through holes in linear array are opened on each separation plate, a sealing strip is fixedly connected on the outer surface of the main box body of the incubator body, the separation plate and the frame plate, two first springs are fixedly connected to one end of each movable plate located in the inside of the incubator body.

[0006] Further, the incubator body is composed of a main box body in the middle and two control box bodies distributed at the upper and lower ends of the main box body, the interior of the main box body of the incubator body contains a plurality of heaters, a plurality of refrigerators, a plurality of constant humidity devices and a ventilation system, and the controller is composed of a main switch, a button, a display screen and a control panel.

[0007] Further, the gap between every two groups of frame plates is the same as the thickness of the partition plates, the main box body of the incubator body and the partition plates and the frame plates are combined into a plurality of accommodation cavities arranged in a rectangular array, and the plurality of sealing strips are arranged in the shape of the rectangular accommodation cavities.

[0008] Further, the incubation assembly further comprises a plurality of storage boxes inserted into the interior of the incubator body, third through holes are formed in the two sides of each storage box, a sealing plate is fixedly connected to one end of each storage box located on the outside of the incubator body, and an observation window is fixedly connected to the middle portion of each sealing plate.

[0009] Further, the first through hole, the second through hole and the third through hole are in corresponding positions, the bottom of each storage box is hollow, the top of each storage box is open, a layer of rubber skin is arranged on the outer surface of each sealing plate, the sealing plates on every two adjacent storage boxes are tightly attached to each other, and the observation windows are made of tempered glass.

[0010] Further, a locking assembly is arranged on each sealing plate, the locking assembly comprises two movable grooves formed in the two sides of the sealing plate, a lifting groove is symmetrically formed in one side of the sealing plate, the two lifting grooves are in communication with the interiors of the two movable grooves, the groove bottoms of the two movable grooves are fixedly connected with second springs, the top portions of the two second springs are fixedly connected with movable blocks, one clamping rod is fixedly connected to the outer surface of each movable block, and a plurality of clamping slot buckles arranged in a linear array are fixedly connected to the outer surface of the main box body of the incubator body and the frame plates.

[0011] Further, the movable block is composed of a square block and a long plate, the square block of the movable block slides in the interior of the movable groove, the long plate of the movable block slides in the interior of the lifting groove, and the long plate of the movable block extends to the outside of the sealing plate through the lifting groove.

[0012] Further, the clamping slot buckle is arranged in an L-shaped horizontal manner, and the top portions of the two ends of the clamping slot buckle away from the incubator body and the frame plate are arranged in a slope shape.

[0013] As described above, the incubation device for food detection has the following beneficial effects: Through the interconnected structure of the movable plate, the first through hole, and the second through hole, only the compartment for removing the culture dish is connected to the outside. The other compartments remain sealed throughout the process of removing the storage box individually, and their internal environmental parameters are not affected. This is crucial for the microbial culture of food samples and can avoid culture failure or data deviation caused by environmental fluctuations. If a food sample needs to be removed for testing urgently, only the culture dish in the storage box of one compartment needs to be removed, without affecting the continuous culture of other food samples. This avoids the environmental imbalance caused by opening the door of traditional incubators, thereby reducing the energy consumption generated by readjusting the heater, cooler, humidifier, and ventilation system. The partition plate allows cavities at the same level to be placed in the same space, while the partition plate can separate storage boxes of different heights into layers, so that different food sample petri dishes can be stored in storage boxes of different levels. This enables different microbial culture and testing of different food samples, meeting the differentiated culture needs of various microorganisms or food samples. There is no need for batch operation or multiple devices. A single device can achieve parallel culture in multiple environments, saving laboratory space and reducing equipment purchase and energy costs. By tightly contacting the sealing plate with the sealing strip, a sealing relationship can be formed between the sealing plate and the incubator body, as well as the partition plate and frame plate. This ensures that the petri dishes in the storage box remain sealed in the containment cavity, that is, the petri dishes are isolated from the outside world in the containment cavity of the incubator body, so that the food samples in the petri dishes can be stably cultured and tested for microorganisms in the containment cavity of the incubator body. The movable plate pushes the sealing plate, causing the sealing plate to move the container outward within the cavity. At this point, the sealing plate of the container that needs to be removed will protrude from the other sealing plates, making it easier to pick up the petri dish and quickly observe the microbial culture of the food sample inside. After observing the microorganisms in the food sample, the sealing plate can be quickly pushed so that the container moves the petri dish into the cavity for resealing and culture. This rapid operation avoids excessive airflow between the outside and the environment inside the cavity, reducing the impact of environmental changes within the cavity on the food sample culture. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall components of the present invention; Figure 2 This is a three-dimensional schematic diagram of the partition plate, frame plate, movable plate and other components of the present invention; Figure 3 For the present invention Figure 2 3D schematic diagram of component at point A; Figure 4 This is a three-dimensional schematic diagram of the through hole one, through hole two, through hole three, and other components of the present invention; Figure 5This is a three-dimensional cross-sectional view of the movable plate, storage box, and other components of the present invention; Figure 6 This is a three-dimensional schematic diagram of the partition groove, partition plate, and other components of the present invention; Figure 7 This is a three-dimensional cross-sectional view of the partition plate, storage box, sealing plate, and other components of the present invention; Figure 8 This is a three-dimensional schematic diagram of the movable plate, through hole two, spring one, and other components of the present invention; Figure 9 This is a three-dimensional schematic diagram of the storage box, through hole three, and locking rod of the present invention; Figure 10 This is a three-dimensional schematic diagram of the lifting groove, movable block, and other components of the present invention; Figure 11 This is a three-dimensional schematic diagram of the internal structure of the movable groove of the present invention; Figure 12 This is a three-dimensional schematic diagram of the sealing plate, card slot, and other components of the present invention; Figure 13 For the present invention Figure 12 A three-dimensional schematic diagram of component B in the middle.

[0015] The reference numerals in the accompanying drawings of this invention are as follows: 1. Incubator body; 2. Controller; Cultivation components: 31. Divider groove; 32. Divider plate; 33. Frame plate; 34. First through hole; 35. Sealing strip; 36. Movable plate; 37. Second through hole; 38. First spring; 39. Storage box; 310. Third through hole; 311. Sealing plate; 312. Observation window; Locking components: 41. Movable groove; 42. Lifting groove; 43. Second spring; 44. Movable block; 45. Locking rod; 46. Locking slot buckle. Detailed Implementation

[0016] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 10 As shown, a food testing culture device includes a culture chamber body 1 and a controller 2. The controller 2 is fixedly connected to the top of the outer surface of the culture chamber body 1. The culture chamber body 1 is provided with culture components for partitioned storage of culture. It should be noted that the incubator body 1 consists of a main chamber in the middle and two control chambers distributed at the upper and lower ends of the main chamber. The interior of the main chamber of the incubator body 1 contains multiple heaters, multiple coolers, multiple humidifiers and a ventilation system. All of the above devices are used to regulate the environment inside the main chamber of the incubator body 1. The controller 2 consists of a main switch, buttons, a display screen and a control panel. The switch is used to control the power supply of the incubator body 1, the buttons are used to adjust the heaters, coolers, thermostats and ventilation system inside the incubator body 1, and the display screen is used to display the temperature and humidity of the incubator body 1.

[0018] The culture assembly includes multiple sets of linearly arranged partition grooves 31 formed on the inner wall of the main body of the culture chamber 1. Two partition grooves 31 at the same horizontal level form a group, and a partition plate 32 is inserted and fixed between the two partition grooves 31 in each group. Multiple sets of linearly arranged frame plates 33 are arranged inside the main body of the culture chamber 1. Multiple frame plates 33 at the same horizontal level form a group, and the gap between any two groups of frame plates 33 is the same as the thickness of the partition plate 32. The main body of the culture chamber 1, the partition plates 32, and the frame plates 33 combine to form multiple accommodating cavities arranged in a rectangular array. Each frame plate 33 has multiple linearly arranged first through holes 34. Sealing strips 35 are fixedly connected to the outer surface of the main body of the incubator 1 at the positions corresponding to the partition plate 32 and the frame plate 33. Multiple sealing strips 35 are combined to form a rectangle in the shape of a receiving cavity. Movable plates 36 are slidably connected to both sides of each frame plate 33. Each movable plate 36 has a second through hole 37. Two first springs 38 are fixedly connected to one end of each movable plate 36 inside the incubator body 1. A storage box 39 is inserted into each receiving cavity. A third through hole 310 is opened on both sides of each storage box 39. A sealing plate 311 is fixedly connected to one end of each storage box 39 outside the receiving cavity. An observation window 312 is fixedly connected to the middle of each sealing plate 311.

[0019] It should be noted that the first through hole 34, the second through hole 37 and the third through hole 310 are in corresponding positions. The bottom of each storage box 39 is hollow and the top of each storage box 39 is open. The outer surface of each sealing plate 311 is covered with a layer of rubber. The sealing plates 311 on each two adjacent storage boxes 39 are tightly fitted together. When the sealing plate 311 abuts against the sealing strip 35 and the movable plate 36, the first spring 38 will be compressed by the movable plate 36. The observation windows 312 are all made of tempered glass. In addition, the accommodating cavities in the same row share a heater, a cooler, a humidifier and a ventilation system.

[0020] Specifically, the staff first needs to press the switch on the controller 2, and adjust the temperature and humidity of the same row of containment chambers through the buttons on the controller 2. Then, the culture medium is prepared, and food samples and culture medium are stored in petri dishes. After the food samples to be tested are prepared, the staff remove multiple storage boxes 39 at the same horizontal height from the containment chamber. That is, the staff holds the sealing plate 311 and pulls the sealing plate 311 to pull the storage box 39 out of the containment chamber. During this process, the sealing plate 311 no longer contacts the sealing strip 35 and the movable plate 36. Under the elastic reset action of the first spring 38, the movable plate 36 will slide towards the outside of the incubator body 1. As the movable plate 36 slides, the second through hole 37 set on the movable plate 36 will also move together. At this time, the second through hole 37 and the first through hole 34 are misaligned, and the containment chamber of the removed storage box 39 is separated into an isolated state. The petri dish is then placed inside the storage box 39, and finally, the storage box 39 is pushed back into the receiving cavity. During this process, the sealing plate 311 again contacts the movable plate 36, pushing it along the partition plate 32 towards the side closer to the first spring 38. This movement of the movable plate 36 compresses the first spring 38. At this point, the second through hole 37 on the movable plate 36 corresponds to the first through hole 34 on the frame plate 33. Furthermore, when the sealing plate 311 reaches the innermost part of the receiving cavity, the third through hole 310 on the storage box 39 corresponds to the second through hole 37 on the movable plate 36, and simultaneously, the side of the sealing plate 311 closest to the storage box 39 contacts the sealing strip 35. When all the storage boxes 39 at the same horizontal height are placed into the receiving cavity, the partition plate 32 allows the receiving cavities at the same horizontal height to be in the same space. The partition plate 32 can also separate the storage boxes 39 at different heights into layers, so that different food sample petri dishes can be stored in the storage boxes 39 at different horizontal heights. This enables different microbial culture and detection of different food samples, meets the differentiated culture needs of various microorganisms or food samples, eliminates the need for batch operation or multiple devices, and allows a single device to perform parallel culture in multiple environments, saving laboratory space and reducing equipment procurement and energy costs.

[0021] During the testing of food samples, if it is necessary to observe the culture of microorganisms in the food sample, it can be observed directly through the observation window 312. If it is necessary to remove the petri dish from the storage box 39 for observation, one of the sealing plates 311 can be held and pulled to move the storage box 39 from the inside of the cavity to the outside. At this time, the movable plate 36 loses the pushing force of the sealing plate 311, and then under the elastic reset action of the first spring 38, the movable plate 36 moves away from the first spring 38. At this time, the second through hole 37 on the movable plate 36 will be misaligned with the first through hole 34 on the frame plate 33, so that the first through hole 34 on the frame plate 33 on the side closest to it can be observed. The sealing design ensures that the cavity of the removed container 39 is not interconnected with other cavities. Compared to traditional incubators where samples are removed by opening the door, this design allows only the cavity containing the culture dish to be accessed, while the other cavities remain sealed throughout the process. This prevents the internal environmental parameters from being affected, which is crucial for the microbial culture of food samples. It avoids culture failures or data deviations caused by environmental fluctuations. If a food sample needs to be removed for testing urgently, only the culture dish in the container 39 of one of the cavities needs to be removed, without affecting the continued culture of other food samples. This avoids environmental imbalance caused by opening the door in traditional incubators, thereby reducing the energy consumption generated by readjusting the heater, cooler, humidifier, and ventilation system.

[0022] like Figures 1 to 3 , Figure 6 , Figures 9 to 13 As shown, each sealing plate 311 is provided with a locking assembly for locking the storage box 39 in the receiving cavity. The locking assembly includes two movable grooves 41 opened on both sides of the sealing plate 311. A lifting groove 42 is symmetrically opened on the side of the sealing plate 311 away from the storage box 39. The two lifting grooves 42 are respectively connected to the interior of the two movable grooves 41. A second spring 43 is fixedly connected to the bottom of the two movable grooves 41. A movable block 44 is fixedly connected to the top of the two second springs 43. A locking rod 45 is fixedly connected to the outer surface of the two movable blocks 44. Multiple locking slots 46 arranged in a linear array are fixedly connected to the outer surface of the main box body 1 and the frame plate 33.

[0023] It should be noted that the movable block 44 is composed of a square block and a long plate. The square block of the movable block 44 slides inside the movable groove 41, and the long plate of the movable block 44 slides inside the lifting groove 42. The long plate of the movable block 44 extends out of the lifting groove 42 to the outside of the sealing plate 311, which makes it convenient for the staff to hold the movable block 44 and push it upward. The two locking rods 45 extend out of the movable groove 41 to both sides. The locking buckle 46 is set as a horizontally placed L-shape. The top of the end of the locking buckle 46 away from the incubator body 1 and the frame plate 33 is set as a slope.

[0024] Specifically, when the storage box 39 is placed into the receiving cavity and moves horizontally, that is, when the sealing plate 311 contacts the movable plate 36, the sealing plate 311 will drive the movable block 44 in the movable groove 41 to move synchronously. At this time, the movable block 44 will drive the locking rod 45 to contact the inclined surface of the locking slot buckle 46. Under the guidance of the inclined surface of the locking slot buckle 46, the locking rod 45 will move upward. The locking rod 45 will drive the movable block 44 to move upward inside the movable groove 41. The movable block 44 will stretch the second spring 43. When the locking rod 45 passes the inclined surface of the locking slot buckle 46, under the elastic reset action of the second spring 43, the movable block 44 will move downward inside the movable groove 41. At this time, the movable block 44 will drive the locking rod 45 to move downward synchronously. Then the locking rod 45 will enter the interior of the locking slot buckle 46. The locking rod 45 and the locking slot The buckle 46 forms a snap-fit, and the snap-fit ​​relationship between the buckle 45 and the buckle 46 locks the sealing plate 311, so that the sealing plate 311 always pushes the movable plate 36 and keeps the first spring 38 in a compressed state. This ensures that the second through hole 37 on the movable plate 36 always coincides with the first through hole 34 on the frame plate 33. At the same time, the sealing plate 311 is in close contact with the sealing strip 35, thus forming a sealing relationship between the sealing plate 311 and the incubator body 1, as well as the partition plate 32 and the frame plate 33. This ensures that the culture dish in the storage box 39 is kept sealed in the receiving cavity, that is, the culture dish is isolated from the outside in the receiving cavity of the incubator body 1, so that the food sample in the culture dish can be stably cultured and detected for microorganisms in the receiving cavity of the incubator body 1.

[0025] Furthermore, when it is necessary to remove the petri dish from the storage box 39 for observation, the engagement between the locking lever 45 and the locking slot 46 is required. The operator can hold the long plate of the movable block 44 and push it upwards within the lifting groove 42. Simultaneously, the square block of the movable block 44 will move upwards within the movable groove 41, causing the locking lever 45 to move upwards within the locking slot 46. When the locking lever 45 disengages from the locking slot 46, the elastic reset action of the first spring 38 causes the movable plate 36 to move outwards on the partition plate 32. At this point, the movable plate 36 pushes against the sealing plate 311, causing the sealing plate 311 to move the storage box 39 outwards within the receiving cavity. When the petri dish needs to be removed, the sealing plate 311 will protrude beyond the other sealing plates 311, facilitating the removal of the petri dish and enabling rapid observation of the microbial culture of the food sample within the petri dish. After observing the microorganisms in the food sample in the petri dish, the sealing plate 311 can be quickly pushed so that the storage box 39 can carry the petri dish into the containment cavity for resealing and incubation. This rapid operation can prevent excessive external air from circulating with the environment inside the containment cavity, reducing the impact of environmental changes inside the containment cavity on the food sample culture.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A food testing incubation device, comprising an incubator body (1) and a controller (2), wherein the controller (2) is fixedly connected to the top of the outer surface of the incubator body (1), characterized in that, The incubator body (1) is equipped with a culture component inside; The culture component includes multiple sets of linearly arranged partition grooves (31) on the inner wall of the main body of the culture chamber (1). Two partition grooves (31) at the same horizontal height form a group. A partition plate (32) is inserted and fixed between the two partition grooves (31) in each group. Multiple sets of linearly arranged frame plates (33) are fixedly connected inside the culture chamber (1). Multiple frame plates (33) at the same horizontal height form a group. Multiple first through holes (34) are opened on each frame plate (33) in a linear array. A sealing strip (35) is fixedly connected to the outer surface of the main body of the culture chamber (1) at the position corresponding to the partition plate (32) and the frame plate (33). Movable plates (36) are slidably connected to both sides of each frame plate (33). A second through hole (37) is opened on each movable plate (36). Two first springs (38) are fixedly connected to one end of each movable plate (36) inside the culture chamber (1). The culture assembly also includes multiple storage boxes (39) inserted inside the incubator body (1). Each storage box (39) has a third through hole (310) on both sides. Each storage box (39) has a sealing plate (311) fixedly connected to one end of the storage box (39) located outside the incubator body (1). Each sealing plate (311) has an observation window (312) fixedly connected to the middle. The incubator body (1) consists of a main chamber in the middle and two control chambers distributed at the upper and lower ends of the main chamber. The main chamber of the incubator body (1) contains multiple heaters, multiple coolers, multiple humidifiers and a ventilation system. The controller (2) consists of a main switch, buttons, a display screen and a control panel. The gap between each pair of frame plates (33) is the same as the thickness of the partition plate (32). The main body of the incubator body (1) is combined with the partition plate (32) and the frame plate (33) to form multiple accommodating cavities arranged in a rectangular array. The accommodating cavities in the same row share a heater, cooler, humidifier and ventilation system. Multiple sealing strips (35) are combined to form a rectangle in the shape of the accommodating cavity.

2. The food testing culture device according to claim 1, characterized in that, The first through hole (34), the second through hole (37) and the third through hole (310) are in corresponding positions. The bottom of each storage box (39) is hollowed out and the top of each storage box (39) is set with an opening. The outer surface of each sealing plate (311) is provided with a layer of rubber skin. The sealing plates (311) on each two adjacent storage boxes (39) are tightly fitted together. The observation window (312) is set with tempered glass.

3. The food testing culture device according to claim 1, characterized in that, Each sealing plate (311) is provided with a locking assembly, which includes two movable grooves (41) opened on both sides of the sealing plate (311). A lifting groove (42) is symmetrically opened on one side of the sealing plate (311). The two lifting grooves (42) are respectively connected to the interior of the two movable grooves (41). A second spring (43) is fixedly connected to the bottom of the two movable grooves (41). A movable block (44) is fixedly connected to the top of the two second springs (43). A locking rod (45) is fixedly connected to the outer surface of the two movable blocks (44). Multiple locking buckles (46) arranged in a linear array are fixedly connected to the outer surface of the main box of the incubator body (1) and the frame plate (33).

4. The food testing culture device according to claim 3, characterized in that, The movable block (44) consists of a block and a long plate. The block of the movable block (44) slides inside the movable groove (41), and the long plate of the movable block (44) slides inside the lifting groove (42). The long plate of the movable block (44) extends out of the lifting groove (42) and extends to the outside of the sealing plate (311).

5. The food testing culture device according to claim 4, characterized in that, The card slot buckle (46) is set as a horizontal L-shape, and the top of the end of the card slot buckle (46) that is away from the incubator body (1) and the frame plate (33) is set as a slope.

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