A coliform bacteria detection kit
By designing a coliform detection kit that facilitates the removal of the culture box and the use of a floating block sliding plate system for monitoring water levels, the problems of inconvenient culture box fixation and poor heating effect have been solved, thereby improving culture efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN TEST BIO-ELECTRON CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-14
Smart Images
Figure CN224494196U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hygiene testing technology, specifically to a coliform bacteria detection kit. Background Technology
[0002] Coliform bacteria are not a bacteriological classification, but a term used in the field of sanitary bacteria. It does not represent a single bacterium or genus, but refers to a group of bacteria with certain characteristics that are associated with fecal contamination. These bacteria are not entirely consistent in terms of biochemistry and serology. They are defined as: aerobic and facultative anaerobic Gram-negative non-spore-forming bacilli that can decompose lactose to produce acid and gas at 37°C.
[0003] Existing coliform bacteria detection kits require the use of a culture box to incubate the reagent paper. However, since the culture box is fixed inside the device, it is inconvenient to clean the culture box. At the same time, it is necessary to heat it in a water bath to bring the internal temperature of the culture box to the required incubation temperature of the reagent paper. However, the long incubation time will cause some heating water to be lost, resulting in poor heating effect. Furthermore, users cannot continuously observe the water level. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a coliform bacteria detection kit, which has the advantages of easy removal of the culture box and bottom water level alarm, thus solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a coliform bacteria detection kit, including a box body, a lid rotatably connected to the top of the box body, a locking block fixedly installed on the outer wall of the lid, a warning light and a water inlet fixedly installed on the inner wall of the box body, a culture box slidably connected to the inner wall of the box body, a pressure relief valve fixedly installed on the outer wall of the box body, a sealing cap slidably connected to the inner wall of the water inlet, a temperature sensor fixedly installed on the top of the culture box, a controller fixedly installed on the top of the temperature sensor, a water outlet layer formed on the inner wall of the box body, and a second temperature sensor and a heating rod fixedly installed on the inner wall of the water outlet layer. The inner wall of the box is rotatably connected to a locking plate. Spring 1 and Spring 2 are respectively provided on the inner wall of the box. A pressing base is slidably connected to the inner wall of the box. A pressure block is fixedly installed at the bottom of the culture box. A locking groove is opened on the outer wall of the culture box. A pressure plate is slidably connected to the inner wall of the box. A rotating rod is rotatably connected to the inner wall of the box. A threaded column is fixedly installed at the top of the rotating rod. A lifting plate is slidably connected to the inner wall of the box. A protective shell is fixedly installed at the top of the lifting plate. A contact sensor is fixedly installed on the inner wall of the protective shell. A sliding plate is slidably connected to the inner wall of the box. A float is fixedly installed on the outer wall of the sliding plate.
[0006] As a preferred technical solution of this utility model: the threaded column passes through the lifting plate, and the threaded column and the lifting plate are connected by threads.
[0007] As a preferred technical solution of this utility model: the shape of the sliding plate is adapted to the shape of the inner wall of the box body near the sliding plate, and the inner wall of the box body is in contact with the outer wall of the sliding plate.
[0008] As a preferred technical solution of this utility model: the shape of the pressing block is adapted to the shape of the lower pressing base, and the inner wall of the lower pressing base is adapted to the position of the box body near the lower pressing base, and the lower pressing base is in close contact with the inner wall of the box body.
[0009] As a preferred technical solution of this utility model: the position of the card plate is adapted to the position of the locking groove, and the second spring is located on the side of the card plate away from the locking groove.
[0010] As a preferred technical solution of this utility model: the bottom shape of the pressure plate is adapted to the shape of the card plate, and the bottom of the pressure plate is in contact with the top of the card plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This coliform bacteria detection kit works by pressing down on the culture box, causing the warning light to move downwards. At this time, the locking groove moves downwards, and by pressing down on the pressure plate, the pressure plate and the card plate are pressed together, causing the card plate to move towards the direction of spring two, separating the card plate from the locking groove, and thus the fixing relationship of the culture box is lost. At this time, the culture box can be removed from the inner wall of the box body.
[0013] 2. In this coliform bacteria detection kit, when the liquid level on the inner wall of the effluent layer changes, the float moves with the liquid level height on the inner wall of the effluent layer due to buoyancy. This causes the float to move the sliding plate, which in turn moves downwards, causing the bottom of the sliding plate to contact the top of the contact sensor. At this time, the contact sensor sends an electrical signal to the warning light, causing the warning light to flash. Simultaneously, rotating the rotating rod causes the threaded column to rotate, which in turn causes the threaded column to move through the threaded connection with the lifting plate, thus moving the lifting plate. This, in turn, causes the top protective shell to move, which in turn causes the contact sensor on the inner wall to move, thus changing the trigger height of the contact sensor. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the culture box structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the pressure relief valve structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the box body of this utility model;
[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0019] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B.
[0020] In the diagram: 1. Box body; 2. Box lid; 3. Locking block; 4. Warning light; 5. Incubator; 6. Water inlet; 7. Sealing cap; 8. Pressure relief valve; 9. Temperature sensor one; 10. Controller; 11. Temperature sensor two; 12. Heating rod; 13. Water outlet layer; 14. Lower base; 15. Spring one; 16. Clamping plate; 17. Spring two; 18. Pressure plate; 19. Pressure block; 20. Locking groove; 21. Rotating rod; 22. Threaded column; 23. Lifting plate; 24. Sliding plate; 25. Protective shell; 26. Contact sensor; 27. Float. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1 - Figure 6A coliform bacteria detection kit includes a box body 1, a lid 2 rotatably connected to the top of the box body 1, a locking block 3 fixedly installed on the outer wall of the lid 2, an alarm light 4 and a water inlet 6 fixedly installed on the inner wall of the box body 1, a culture box 5 slidably connected to the inner wall of the box body 1, a pressure relief valve 8 fixedly installed on the outer wall of the box body 1, a sealing cover 7 slidably connected to the inner wall of the water inlet 6, a temperature sensor 9 fixedly installed on the top of the culture box 5, a controller 10 fixedly installed on the top of the temperature sensor 9, a water outlet layer 13 formed on the inner wall of the box body 1, a temperature sensor 11 and a heating rod 12 fixedly installed on the inner wall of the water outlet layer 13, and a retaining plate rotatably connected to the inner wall of the box body 1. 16. Spring 15 and spring 217 are respectively provided on the inner wall of box 1. A pressing base 14 is slidably connected to the inner wall of box 1. A pressing block 19 is fixedly installed at the bottom of culture box 5. A locking groove 20 is opened on the outer wall of culture box 5. A pressure plate 18 is slidably connected to the inner wall of box 1. A rotating rod 21 is rotatably connected to the inner wall of box 1. A threaded column 22 is fixedly installed on the top of the rotating rod 21. A lifting plate 23 is slidably connected to the inner wall of box 1. A protective shell 25 is fixedly installed on the top of the lifting plate 23. A contact sensor 26 is fixedly installed on the inner wall of the protective shell 25. A sliding plate 24 is slidably connected to the inner wall of box 1. A float block 27 is fixedly installed on the outer wall of the sliding plate 24.
[0023] In the above structure, the float 27 is located on the inner wall of the water outlet layer 13. When the liquid level on the inner wall of the water outlet layer 13 changes, the float 27 moves with the liquid level height on the inner wall of the water outlet layer 13 by buoyancy, thereby causing the float 27 to drive the sliding plate 24 to move.
[0024] In a preferred embodiment, the threaded post 22 passes through the lifting plate 23, and the threaded post 22 and the lifting plate 23 are threadedly connected.
[0025] In the above structure, by rotating the rotating rod 21, the rotating rod 21 drives the threaded column 22 to rotate, which in turn causes the threaded column 22 to move through the threaded connection with the lifting plate 23, which in turn causes the lifting plate 23 to move the protective shell 25 on the top, which in turn causes the protective shell 25 to move the contact sensor 26 on the inner wall, which in turn causes the trigger height of the contact sensor 26 to change.
[0026] In a preferred embodiment, the shape of the sliding plate 24 is adapted to the shape of the inner wall of the box 1 near the sliding plate 24, and the inner wall of the box 1 is in contact with the outer wall of the sliding plate 24.
[0027] In the above structure, the sliding plate 24 is attached to the inner wall of the box 1, so that the sliding plate 24 will not tilt when it moves, thereby limiting the sliding plate 24 and limiting the float 27, so that the float 27 will not tilt when it moves.
[0028] In a preferred embodiment: the shape of the pressure block 19 is adapted to the shape of the pressure base 14, and the inner wall of the pressure base 14 is adapted to the position of the box body 1 near the pressure base 14, and the pressure base 14 is in contact with the inner wall of the box body 1.
[0029] In the above structure, by placing the culture box 5 above the box body 1, the culture box 5 is moved downwards, which in turn causes the pressure block 19 to move downwards. The pressure block 19 then presses the lower pressure base 14 downwards, causing the lower pressure base 14 to compress the spring 15. At this time, the lower pressure base 14 adheres to the inner wall of the box body 1, so that the lower pressure base 14 will not tilt during movement, and the lower pressure base 14 exerts a continuous upward pressing force on the pressure block 19.
[0030] In a preferred embodiment, the position of the locking plate 16 is adapted to the position of the locking groove 20, and the second spring 17 is located on the side of the locking plate 16 away from the locking groove 20.
[0031] In the above structure, when the locking groove 20 reaches the outside of the card plate 16, the card plate 16 is pressed against the inner wall of the locking groove 20 by the rebound of the second spring 17, thereby causing the card plate 16 to enter the inner wall of the locking groove 20, thus fixing the locking groove 20, and thus fixing the culture box 5.
[0032] In a preferred embodiment, the bottom shape of the pressure plate 18 is adapted to the shape of the card plate 16, and the bottom of the pressure plate 18 is in contact with the top of the card plate 16.
[0033] In the above structure, by pressing down on the pressure plate 18, the pressure plate 18 squeezes the card plate 16 by adhering to the card plate 16, thereby causing the card plate 16 to move in the direction of the second spring 17, so that the card plate 16 separates from the locking groove 20.
[0034] Working Principle: When using the equipment, reagent paper is placed on the inner wall of the culture box 5, and water is injected through the water inlet 6, allowing the water to reach the interior of the water outlet layer 13. The water is then heated by the heating rod 12, causing the water temperature to rise and consequently the temperature of the inner wall of the culture box 5, reaching the incubation temperature required for the reagent paper. The temperature is controlled by temperature sensors 9 and 11, the heating rod 12, and the controller 10. As water continuously flows out, the liquid level changes on the inner wall of the water outlet layer 13. The float 27 moves with the liquid level of the water outlet layer 13, causing the sliding plate 24 to move. This downward movement of the float 27 causes the sliding plate 24 to move, bringing its bottom into contact with the top of the contact sensor 26. The contact sensor 26 then sends an electrical signal to the warning light 4, activating the warning light. 4. Flashing. When the alarm liquid level needs to be adjusted, rotate the rotating rod 21, causing the rotating rod 21 to drive the threaded column 22 to rotate. This causes the threaded column 22 to move the lifting plate 23 through the threaded connection with the lifting plate 23. This causes the lifting plate 23 to move the protective shell 25 on the top, which in turn causes the protective shell 25 to move the contact sensor 26 on the inner wall. This changes the trigger height of the contact sensor 26. When the culture box 5 needs to be removed for cleaning, press down on the culture box 5, causing the culture box 5 to move the warning light 4 downward. At this time, the locking groove 20 moves downward. Press down on the pressure plate 18, causing the pressure plate 18 to press the clamping plate 16 through its contact with the clamping plate 16. This causes the clamping plate 16 to move towards the spring 17, separating the clamping plate 16 from the locking groove 20. This causes the fixed relationship of the culture box 5 to disappear. At this time, the culture box 5 can be removed from the inner wall of the box body 1.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A coliform bacteria detection kit, comprising a housing (1), characterized in that: The top of the box body (1) is rotatably connected to a lid (2), and a locking block (3) is fixedly installed on the outer wall of the lid (2). A warning light (4) and a water inlet (6) are fixedly installed on the inner wall of the box body (1). A culture box (5) is slidably connected to the inner wall of the box body (1). A pressure relief valve (8) is fixedly installed on the outer wall of the box body (1). A sealing cover (7) is slidably connected to the inner wall of the water inlet (6). A temperature sensor (9) is fixedly installed on the top of the culture box (5). A controller (10) is fixedly installed on the top of the temperature sensor (9). A water outlet layer (13) is opened on the inner wall of the box body (1). A temperature sensor (11) and a heating rod (12) are fixedly installed on the inner wall of the water outlet layer (13). A clamping plate (16) is rotatably connected to the inner wall of the box body (1). The inner wall is provided with spring one (15) and spring two (17). The inner wall of the box body (1) is slidably connected to a pressing base (14). The bottom of the culture box (5) is fixedly installed with a pressure block (19). The outer wall of the culture box (5) is provided with a locking groove (20). The inner wall of the box body (1) is slidably connected to a pressure plate (18). The inner wall of the box body (1) is rotatably connected to a rotating rod (21). The top of the rotating rod (21) is fixedly installed with a threaded column (22). The inner wall of the box body (1) is slidably connected to a lifting plate (23). The top of the lifting plate (23) is fixedly installed with a protective shell (25). The inner wall of the protective shell (25) is fixedly installed with a contact sensor (26). The inner wall of the box body (1) is slidably connected to a sliding plate (24). The outer wall of the sliding plate (24) is fixedly installed with a float (27).
2. The coliform bacteria detection kit according to claim 1, characterized in that: The threaded post (22) passes through the lifting plate (23), and the threaded post (22) and the lifting plate (23) are connected by threads.
3. The coliform bacteria detection kit according to claim 1, characterized in that: The shape of the sliding plate (24) is adapted to the shape of the inner wall of the box body (1) near the sliding plate (24), and the inner wall of the box body (1) is in contact with the outer wall of the sliding plate (24).
4. The coliform bacteria detection kit according to claim 1, characterized in that: The shape of the pressure block (19) is adapted to the shape of the pressure base (14), and the inner wall of the pressure base (14) is adapted to the position of the box body (1) near the pressure base (14). The pressure base (14) is in contact with the inner wall of the box body (1).
5. The coliform bacteria detection kit according to claim 1, characterized in that: The position of the card plate (16) is adapted to the position of the lock groove (20), and the second spring (17) is located on the side of the card plate (16) away from the lock groove (20).
6. The coliform bacteria detection kit according to claim 1, characterized in that: The bottom shape of the pressure plate (18) is adapted to the shape of the card plate (16), and the bottom of the pressure plate (18) is in contact with the top of the card plate (16).