Rapid cake microorganism detection device

Abstract

The invention discloses a cake microorganism rapid detection device, which belongs to the technical field of microorganism detection and comprises a box body, a linear moving mechanism, a roller and a roller driving mechanism. A temperature and humidity adjusting assembly is arranged in the box body, and a box door is arranged on the side wall of the box body. The linear moving mechanism is installed in the box body, and an observation piece is arranged at the moving end of the linear moving mechanism. Accommodating openings are formed in the roller at equal intervals, U-shaped bearing plates are rotationally connected into the accommodating openings, and culture dish fixing parts are fixedly connected to the U-shaped bearing plates; the roller driving mechanism is used for driving the roller to rotate by a preset angle every preset time. The culture box has the advantages that the growth condition of visible bacterial colonies can be monitored, and the temperature and humidity of all parts in the culture box can be balanced.

Description

Technical Field

[0001] The invention belongs to the technical field of microbial detection, and in particular relates to a rapid detection device for cake microorganisms. Background Art

[0002] Microbial detection is generally carried out by inoculating the sample solution onto the culture medium, culturing the microorganisms under suitable conditions, and finally counting and analyzing the obtained visible colonies. In the rapid detection of cake microorganisms, two steps are required. The first step is to take a sample from the cake and inoculate the sample solution onto the culture medium, cultivate the microorganisms under suitable conditions, and the second step is to count and analyze the obtained visible colonies. However, there are the following problems in actual operation. First, when culturing microorganisms, it is difficult to monitor the growth of visible colonies, which makes it difficult to remove the cultured microorganisms in time. Second, for low-cost incubators (or damaged incubators), there may be differences in temperature and humidity in various parts of the incubator, and the various culture dishes inside the incubator have environmental differences, resulting in inaccurate cultivation. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a cake microorganism rapid detection device, which has the advantages of being able to monitor the growth of visible bacterial colonies and balance the temperature and humidity of various parts inside the incubator, thereby solving the problems of the prior art.

[0004] The present invention is achieved in that a cake microorganism rapid detection device comprises: A box body, wherein a temperature and humidity control component is arranged inside the box body, and a box door is arranged on a side wall of the box body; A linear moving mechanism, wherein the linear moving mechanism is installed inside the box, and an observation piece is provided at the moving end of the linear moving mechanism; A roller, wherein the roller is provided with equidistantly arranged receiving openings, a U-shaped carrying plate is rotatably connected in the receiving opening, and a culture dish fixing piece is fixedly connected to the U-shaped carrying plate; The roller driving mechanism is used to drive the roller to rotate a preset angle at preset time intervals.

[0005] As a preferred embodiment of the present invention, the roller driving mechanism includes a stepper motor, a rotating shaft and a connecting disk; the stepper motor is fixedly connected to the outer surface of the side wall of the box body; one end of the rotating shaft is fixedly connected to the output end of the stepper motor, and the rotating shaft is rotatably connected to the side wall of the box body through a bearing; the connecting disk is fixedly connected to the rotating shaft and fixedly connected to the roller.

[0006] As a preferred embodiment of the present invention, the box door comprises: a door body, a limit knob and a limit block; The door body is rotatably connected to the side of the box body; The limit knob is arranged above the box body, and when the door body is closed, the limit knob can lock the door body; The limit block is fixedly connected to the box body and is located at the lower side of the door body. When the door body and the side wall of the box body are vertical, the door body and the limit block fit together, so that the door body can rotate 90° at the beginning.

[0007] As a preferred embodiment of the present invention, the box door also includes a limit plate, which is fixedly connected to the lower side of the inner surface of the door body; when the door body is in a horizontal state, the limit plate is attached to the lower surface of the U-shaped bearing plate.

[0008] As a preferred embodiment of the present invention, an angle sensor is provided on the door body, and the angle sensor is signal-connected to the stepping motor.

[0009] As a preferred embodiment of the present invention, an outer surface of the door body is fixedly connected to an outer additional plate, an inner surface edge of the outer additional plate is provided with an airbag strip, and the airbag strip is attached to the box body.

[0010] As a preferred embodiment of the present invention, the culture dish fixing part includes an L-shaped spring piece, which is fixedly connected to the upper surface of the U-shaped supporting plate, and the U-shaped supporting plate is provided with a through hole, and the through hole is located below the L-shaped spring piece; a top block is fixedly connected to the limiting plate, and when the limiting plate is attached to the lower surface of the U-shaped supporting plate, the top block passes through the through hole and lifts up the L-shaped spring piece.

[0011] As a preferred embodiment of the present invention, a connecting plate is clamped between the L-shaped spring sheet and the U-shaped supporting plate, and a notch is provided on the connecting plate, and the notch is aligned with the through hole; a card slot is provided on the upper surface of the connecting plate, and a card block is fixedly connected to the lower edge of the spring sheet, and the card block is carded in the card slot.

[0012] As a preferred embodiment of the present invention, a bearing platform is fixedly connected to one side of the connecting plate, the bearing platform is located on the upper side of the L-shaped spring sheet, and there is a gap between the lower surface of the bearing platform and the L-shaped spring sheet.

[0013] As a preferred embodiment of the present invention, a counterweight block is provided on the U-shaped bearing plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention not only significantly improves the efficiency of microbial detection, but also effectively eliminates the impact of environmental differences inside the incubator on culture dishes through the mechanism of drum rotation. For example, in a case where there are 4 U-shaped carrier plates, each of which is equidistantly provided with 6 culture dishes, a linear moving mechanism is set to detect one culture dish every 10 minutes, and the detection of all culture dishes on a U-shaped carrier plate can be completed within one hour. Subsequently, the drum rotates 90 degrees and switches to the next U-shaped carrier plate to continue the detection, ensuring that any culture dish can be tested once every 4 hours. Such a design not only meets the needs of efficient detection, but also effectively balances the temperature and humidity differences in various parts of the incubator by regularly switching the positions of the culture dishes, so that each culture dish can be used to culture microorganisms under relatively consistent environmental conditions, thereby improving the accuracy and reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a cake microorganism rapid detection device provided by an embodiment of the present invention; Figure 2 The embodiment of the present invention provides Figure 1 A schematic diagram of the enlarged structure of part A; Figure 3 It is a side view structural schematic diagram of a cake microorganism rapid detection device provided by an embodiment of the present invention; Figure 4 The embodiment of the present invention provides Figure 3 Schematic diagram of the cross-sectional structure of the middle BB part; Figure 5 The embodiment of the present invention provides Figure 4 A schematic diagram of the enlarged structure of the middle C part; Figure 6 The embodiment of the present invention provides Figure 4 A schematic diagram of the enlarged structure of the D part; Figure 7 It is a schematic diagram of the main structure of the cake microorganism rapid detection device provided by an embodiment of the present invention; Figure 8 The embodiment of the present invention provides Figure 7 Schematic diagram of the cross-sectional structure of the EE part; Fig. 9 The embodiment of the present invention provides Figure 8 A schematic diagram of the enlarged structure of part F; Fig.10 The embodiment of the present invention provides Fig. 9 A schematic diagram of the enlarged structure of the G portion; Fig.11 Schematic diagram of signal connection of the angle sensor provided by an embodiment of the present invention.

[0016] In the figure: 1. box body; 2. box door; 21. door body; 22. limit knob; 23. limit block; 24. limit plate; 25. external additional plate; 26. airbag strip; 3. linear moving mechanism; 4. observation piece; 5. roller; 6. receiving opening; 7. U-shaped bearing plate; 8. roller driving mechanism; 81. stepping motor; 82. rotating shaft; 83. connecting plate; 9. angle sensor; 10. L-shaped spring piece; 11. through hole; 12. top block; 13. connecting plate; 14. notch; 15. slot; 16. block; 17. bearing platform. DETAILED DESCRIPTION

[0017] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0018] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0019] like Figures 1 to 11 As shown, a cake microorganism rapid detection device provided by an embodiment of the present invention comprises a box body 1, a linear motion mechanism 3, a roller 5 and a roller driving mechanism 8; a temperature and humidity control component (used to increase the appropriate temperature and humidity for microbial culture) is provided inside the box body 1, and a box door 2 is provided on the side wall of the box body 1; the linear motion mechanism 3 is installed inside the box body 1, and an observation piece 4 is provided at the moving end of the linear motion mechanism 3; the roller 5 is provided with equidistantly arranged receiving openings 6, a U-shaped supporting plate 7 is rotatably connected in the receiving opening 6, and a culture dish fixing piece is fixedly connected to the U-shaped supporting plate 7; the roller driving mechanism 8 is used to drive the roller 5 to rotate a preset angle at preset intervals.

[0020] The working principle of the cake microorganism rapid detection device is to achieve efficient and regular observation of microbial culture dishes through automated and mechanized design. The device is provided with a box 1 with adjustable temperature and humidity to provide a suitable growth environment for microbial culture. In the box 1, a linear motion mechanism 3 (such as an electric push rod) carries an observation part 4 (such as a camera) to move linearly, and observes the culture dishes on each U-shaped carrier plate 7 on the roller 5 one by one. The roller 5 is provided with equidistant receiving ports 6, and each receiving port 6 is rotatably connected to a U-shaped carrier plate 7 for placing the culture dish. The roller drive mechanism 8 is responsible for driving the roller 5 to rotate a preset angle at preset intervals, thereby switching different U-shaped carrier plates 7 to the observation position.

[0021] This device not only significantly improves the efficiency of microbial detection, but also effectively eliminates the impact of environmental differences inside the incubator on the culture dishes through the mechanism of the rotation of the roller 5. For example, in the case where there are 4 U-shaped carrier plates 7, and 6 culture dishes are equidistantly arranged on each U-shaped carrier plate 7, by setting the linear moving mechanism 3 to detect a culture dish every 10 minutes, the detection of all culture dishes on a U-shaped carrier plate 7 can be completed within one hour. Subsequently, the roller 5 rotates 90 degrees and switches to the next U-shaped carrier plate 7 to continue the detection, ensuring that any culture dish can be tested once every 4 hours. Such a design not only meets the needs of efficient detection, but also effectively balances the temperature and humidity differences in various parts of the incubator by regularly switching the positions of the culture dishes, so that each culture dish can be cultured under relatively consistent environmental conditions, thereby improving the accuracy and reliability of the test results.

[0022] Furthermore, the roller driving mechanism 8 includes a stepper motor 81, a rotating shaft 82 and a connecting plate 83; the stepper motor 81 is fixedly connected to the outer surface of the side wall of the box body 1; one end of the rotating shaft 82 is fixedly connected to the output end of the stepper motor 81, and the rotating shaft 82 is rotatably connected to the side wall of the box body 1 through a bearing; the connecting plate 83 is fixedly connected to the rotating shaft 82 and fixedly connected to the roller 5.

[0023] The stepper motor 81 is mounted on the outer surface of the side wall of the housing 1 as a power source. When the stepper motor 81 receives a control signal and starts working, its output end drives the rotating shaft 82 fixedly connected thereto to rotate. The rotating shaft 82 is rotationally connected to the side wall of the housing 1 through a bearing to ensure that it can rotate smoothly and stably during the driving process. At the same time, the other end of the rotating shaft 82 is fixedly connected to the connecting disk 83, and the connecting disk 83 is fixedly connected to the roller 5. Therefore, when the rotating shaft 82 rotates, it will drive the connecting disk 83 and the roller 5 to rotate together, realizing the driving function of the roller 5. Since the stepper motor 81 is used as the power source, accurate control of the roller 5 can be achieved, including speed, direction and rotation time. Secondly, the rotating shaft 82 and the side wall of the housing 1 are connected through a bearing, which effectively reduces the friction and resistance during the rotation process and improves the operating efficiency and life of the equipment.

[0024] Specifically, the door 2 includes: A door body 21, wherein the door body 21 is rotatably connected (e.g., hinged) to a side portion of the box body 1; A limit knob 22, which is disposed above the box body 1 and can lock the door body 21 when the door body 21 is closed; The limit block 23 is fixedly connected to the box body 1 and is located at the lower side of the door body 21. When the door body 21 and the side wall of the box body 1 are vertical, the door body 21 and the limit block 23 fit together, so that the door body 21 can rotate 90° at the beginning.

[0025] The design of the box door 2 combines three key elements: a rotating connection, a limit knob 22, and a limit block 23, to achieve convenient opening and closing and stable locking of the door body 21. Specifically, the door body 21 is connected to the side of the box body 1 through a rotating connection such as a hinge, allowing the door body 21 to rotate freely within a certain range (for example, from a vertical position to a horizontal position). The limit knob 22 is set above the box body 1. When the door body 21 is closed in place, the user can lock the door body 21 by rotating the limit knob 22. At the same time, the limit block 23 is fixedly connected to the box body 1 and is located on the lower side of the door body 21. When the door body 21 rotates to a position perpendicular to the side wall of the box body 1, the door body 21 will fit with the limit block 23. This design not only limits the maximum rotation angle of the door body 21 to 90°, but also enhances the stability of the door body 21 in this position. The beneficial effects of the design of the box door 2 are mainly reflected in the two aspects of convenience and safety. First, the hinge enables the door body 21 to rotate freely, so that the user can easily open or close the door 2, which is easy and quick to operate. Second, the use of the limit knob 22 and the limit block 23 not only ensures that the door body 21 is firmly locked in the closed state, but also limits the maximum rotation angle of the door body 21, thereby avoiding the risk of damage to the door body 21 due to excessive rotation.

[0026] Furthermore, the box door 2 also includes a limit plate 24, which is fixedly connected to the lower side of the inner surface of the door body 21; when the door body 21 is in a horizontal state, the limit plate 24 is attached to the lower surface of the U-shaped bearing plate 7.

[0027] Through this arrangement, when the door 2 is opened, the door 2 can drive the limit plate 24 to rotate, and the limit plate 24 rotates to fit the lower surface of the U-shaped load-bearing plate 7, so that the U-shaped load-bearing plate 7 can be limited. When installing or removing the culture dish, the U-shaped limit plate 24 will not shake. This limit plate 24 is fixedly connected to the lower side of the inner surface of the door body 21. When the door 2 is in a closed state, the limit plate 24 fits the inner surface of the side wall of the box body 1 and will not hinder the rotation of the roller 5 and the U-shaped load-bearing plate 7. When the user needs to open the door 2 for operation, the rotation of the door body 21 will drive the limit plate 24 to rotate together. As the door 2 is gradually opened, the limit plate 24 will move and fit the lower surface of the U-shaped load-bearing plate 7. This process realizes the limit function of the U-shaped load-bearing plate 7.

[0028] The beneficial effect of this design is mainly reflected in improving the stability and safety of the door 2 during use. Specifically, when installing or removing a culture dish, due to the limiting effect of the limiting plate 24 on the U-shaped load-bearing plate 7, the U-shaped load-bearing plate 7 will not shake due to slight touches or external forces during operation, thereby ensuring the safety of items such as culture dishes. For example, in a laboratory environment, researchers need to frequently take out or put in culture dishes from the door 2 for observation and experiments. If the U-shaped load-bearing plate 7 is unstable, it may cause the culture dish to slip or break, affecting the accuracy and safety of the experiment. By adopting this design of the door 2 with a limiting plate 24, this problem can be effectively avoided, and the efficiency and safety of experimental operations can be improved.

[0029] Furthermore, an angle sensor 9 is provided on the door body 21 , and the angle sensor 9 is signal-connected to the stepping motor 81 .

[0030] Stepper motor 81 has two operating modes: First, rotate by a preset angle at predetermined intervals, for example, 90° every 10 minutes; Second, the angle sensor 9 signal is connected to the stepper motor 81. When the angle sensor 9 detects that the door angle is greater than the preset angle (for example, the box door 2 is in a horizontal state), the first method is suspended, and the stepper motor 81 will not drive the drum 5 to rotate.

[0031] If the limit plate 24 is always in a vertical state, when it is necessary to switch to the next U-shaped carrier plate 7, the limit plate 24 will prevent the U-shaped carrier plate 7 from rotating to a position aligned with the box door 2. Therefore, when the operation of a culture dish on a U-shaped carrier plate 7 is completed, the door body 21 can be tilted upward or closed, and the limit plate 24 will also be tilted, so as not to hinder the switch to the next U-shaped carrier plate 7. When the angle sensor 9 detects this action, the angle sensor 9 controls the stepping motor 81 to rotate a preset angle, and then switches to the next U-shaped carrier plate 7 and aligns it with the box door 2, so as to operate the culture dish on the U-shaped carrier plate 7.

[0032] Furthermore, an outer surface of the door body 21 is fixedly connected with an outer additional plate 25 , and an airbag strip 26 is provided on the inner surface edge of the outer additional plate 25 , and the airbag strip 26 is attached to the box body 1 .

[0033] By this arrangement, the airbag strip 26 has the following functions: First, the door body 21 can be sealed; Second, when the angle sensor 9 signal is connected to the stepper motor 81, the linear motion mechanism 3 and the observation member 4, the amount of gas inside the airbag strip 26 is adjustable, for example, by inflating or deflation through an air pump. When the door body 21 is closed, when the amount of gas inside the airbag strip 26 is greater, the angle between the door body 21 and the side wall of the box body 1 is greater, and the angle is detected by the angle sensor 9, so that the rotation speed of the stepper motor 81, the moving speed of the linear motion mechanism 3 and the shooting frequency of the observation member 4 can be adjusted. The one-to-one correspondence between the angle of the door body 21 and the rotation speed of the stepper motor 81, the moving speed of the linear motion mechanism 3 and the shooting frequency of the observation member 4 can be preset. For example, when the angle between the door body 21 and the side wall of the box body 1 is 1°-3°, the rotation speed of the stepper motor 81 is 90° per hour; when the angle between the door body 21 and the side wall of the box body 1 is 4°-6°, the rotation speed of the stepper motor 81 is 90° per 30 minutes, etc. Correspondingly, the moving speed of the linear moving mechanism 3 and the shooting frequency of the observation object 4 are also adjusted accordingly.

[0034] Third, when the door body 21 is horizontal, the door body 21 can be used as a temporary loading platform, for example, to temporarily place a culture dish or other tools. At this time, the airbag strips 26 can form a containment structure to prevent objects on the door body 21 from falling.

[0035] Furthermore, the culture dish fixing member includes an L-shaped spring clip 10, which is fixedly connected to the upper surface of the U-shaped supporting plate 7, and the U-shaped supporting plate 7 is provided with a through hole 11, and the through hole 11 is located below the L-shaped spring clip 10; a top block 12 is fixedly connected to the limiting plate 24, and when the limiting plate 24 is attached to the lower surface of the U-shaped supporting plate 7, the top block 12 passes through the through hole 11 and lifts up the L-shaped spring clip 10.

[0036] With this arrangement, the cake microorganism rapid detection device comprises a U-shaped carrier plate 7, on which an L-shaped spring piece 10 and a through hole 11 are provided. The U-shaped carrier plate 7 is used to support and fix the components, and the L-shaped spring piece 10 is used to clamp and fix the culture dish or its connecting structure through its elastic properties. When the limit plate 24 is attached to the lower surface of the U-shaped carrier plate 7, the top block 12 fixedly connected to the limit plate 24 will pass through the through hole 11 and lift up the L-shaped spring piece 10. In this way, the operator can easily remove and install the culture dish, which is convenient for the rapid detection of microorganisms.

[0037] Furthermore, a connecting plate 13 is clamped between the L-shaped spring piece 10 and the U-shaped supporting plate 7, and a notch 14 is provided on the connecting plate 13, and the notch 14 is aligned with the through hole 11; a slot 15 is provided on the upper surface of the connecting plate 13, and a block 16 is fixedly connected to the lower edge of the spring piece, and the block 16 is engaged in the slot 15.

[0038] When in use, in order to further enhance the stability and flexibility of the device, a connecting plate 13 is sandwiched between the L-shaped spring piece 10 and the U-shaped carrier plate 7. A notch 14 aligned with the through hole 11 is provided on the connecting plate 13, so that the top block 12 can pass through the notch 14 to lift the L-shaped spring piece 10. At the same time, a clamping groove 15 is provided on the upper surface of the connecting plate 13, and a clamping block 16 is fixedly connected to the lower edge of the L-shaped spring piece 10, and the clamping block 16 is clamped in the clamping groove 15 to ensure a stable connection between the connecting plate 13 and the L-shaped spring piece 10.

[0039] Furthermore, a bearing platform 17 is fixedly connected to one side of the connecting plate 13 . The bearing platform 17 is located on the upper side of the L-shaped spring piece 10 . There is a gap between the lower surface of the bearing platform 17 and the L-shaped spring piece 10 .

[0040] Through this arrangement, one side of the connecting plate 13 is also fixedly connected with a bearing platform 17, which is located on the upper side of the L-shaped spring piece 10, and there is a gap between the lower surface of the bearing platform 17 and the L-shaped spring piece 10. This gap allows the L-shaped spring piece 10 to have a certain amount of room for movement when it is lifted up, ensuring that the top block 12 can smoothly pass through the notch 14 and lift up the L-shaped spring piece 10. The setting of the bearing platform 17 and the gap makes the device more flexible in operation and can adapt to culture dishes of different sizes and shapes. For example, when culture dishes of different specifications are required for microbial detection, the operator only needs to adjust the position of the limit plate 24 and the top block 12 to ensure that the top block 12 can pass through the notch 14 and lift up the L-shaped spring piece 10. In this way, the device can easily adapt to culture dishes of different specifications and meet diverse detection needs.

[0041] Furthermore, a counterweight block is provided on the U-shaped bearing plate 7 .

[0042] Working principle of the present invention: A box 1 with adjustable temperature and humidity is provided inside the device to provide a suitable growth environment for microbial culture. In the box 1, the linear motion mechanism 3 carries the observation piece 4 to move linearly, and observes the culture dishes on each U-shaped carrier plate 7 on the roller 5 one by one. The roller 5 is provided with equidistant receiving ports 6, and each receiving port 6 is rotatably connected to a U-shaped carrier plate 7 for placing the culture dish. The roller driving mechanism 8 is responsible for driving the roller 5 to rotate a preset angle at a preset time, thereby switching different U-shaped carrier plates 7 to the observation position.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cake microorganism rapid detection device, characterized in that: include: A box body (1), wherein a temperature and humidity control component is provided inside the box body (1), and a box door (2) is provided on a side wall of the box body (1); A linear motion mechanism (3), wherein the linear motion mechanism (3) is installed inside the box (1), and an observation piece (4) is provided at the moving end of the linear motion mechanism (3); A roller (5), wherein the roller (5) is provided with equidistantly arranged receiving openings (6), a U-shaped carrying plate (7) is rotatably connected to the receiving opening (6), and a culture dish fixing member is fixedly connected to the U-shaped carrying plate (7); The roller driving mechanism (8) is used to drive the roller (5) to rotate at a preset angle at preset time intervals.

2. A cake microorganism rapid detection device as claimed in claim 1, characterized in that: The roller driving mechanism (8) comprises a stepping motor (81), a rotating shaft (82) and a connecting disk (83); The stepping motor (81) is fixedly connected to the outer surface of the side wall of the box body (1); One end of the rotating shaft (82) is fixedly connected to the output end of the stepping motor (81), and the rotating shaft (82) is rotatably connected to the side wall of the box body (1) via a bearing; The connecting disk (83) is fixedly connected to the rotating shaft (82) and is also fixedly connected to the roller (5).

3. A cake microorganism rapid detection device as claimed in claim 2, characterized in that: The box door (2) comprises: A door body (21), the door body (21) being rotatably connected to a side portion of the box body (1); A limit knob (22), the limit knob (22) being arranged above the box body (1), and when the door body (21) is closed, the limit knob (22) can lock the door body (21); A limit block (23) is fixedly connected to the box body (1) and is located at the lower side of the door body (21); when the door body (21) and the side wall of the box body (1) are vertical, the door body (21) and the limit block (23) fit together, so that the door body (21) can rotate 90 degrees at the beginning.

4. A cake microorganism rapid detection device as claimed in claim 3, characterized in that: The box door (2) further comprises a limit plate (24), wherein the limit plate (24) is fixedly connected to the lower side of the inner surface of the door body (21); When the door body (21) is in a horizontal state, the limiting plate (24) is in contact with the lower surface of the U-shaped bearing plate (7).

5. A cake microorganism rapid detection device as claimed in claim 4, characterized in that: An angle sensor (9) is provided on the door body (21), and the angle sensor (9) is signal-connected to the stepping motor (81).

6. A cake microorganism rapid detection device as claimed in claim 5, characterized in that: An external additional plate (25) is fixedly connected to the outer surface of the door body (21), an airbag strip (26) is provided on the inner surface edge of the external additional plate (25), and the airbag strip (26) is attached to the box body (1).

7. A cake microorganism rapid detection device as claimed in claim 5 or 6, characterized in that: The culture dish fixing member comprises an L-shaped spring piece (10), the L-shaped spring piece (10) is fixedly connected to the upper surface of the U-shaped supporting plate (7), and the U-shaped supporting plate (7) is provided with a through hole (11), and the through hole (11) is located below the L-shaped spring piece (10); A top block (12) is fixedly connected to the limiting plate (24); when the limiting plate (24) is attached to the lower surface of the U-shaped bearing plate (7), the top block (12) passes through the through hole (11) and lifts up the L-shaped spring sheet (10).

8. A cake microorganism rapid detection device as claimed in claim 7, characterized in that: A connecting plate (13) is clamped between the L-shaped spring sheet (10) and the U-shaped bearing plate (7), and a notch (14) is provided on the connecting plate (13), and the notch (14) is aligned with the through hole (11); The upper surface of the connecting plate (13) is provided with a clamping groove (15), the lower edge of the spring sheet is fixedly connected with a clamping block (16), and the clamping block (16) is clamped in the clamping groove (15).

9. A cake microorganism rapid detection device as claimed in claim 8, characterized in that: A bearing platform (17) is fixedly connected to one side of the connecting plate (13); the bearing platform (17) is located on the upper side of the L-shaped spring sheet (10); and there is a gap between the lower surface of the bearing platform (17) and the L-shaped spring sheet (10).

10. A cake microorganism rapid detection device as claimed in claim 1, characterized in that: A counterweight block is provided on the U-shaped bearing plate (7).

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