Culture dish mounting structure and planktonic bacteria sampler

Abstract

The utility model provides a culture dish mounting structure and a planktonic bacteria sampler. The culture dish mounting structure comprises a base, a tray and a plurality of adjustable connecting pieces, the base is used for being connected to a sampling interface of a planktonic bacteria sampler, and an exhaust hole is formed in the base; the tray is connected to the base and is used for supporting the culture dish; the adjustable connecting pieces are distributed in the circumferential direction of the tray at intervals and slidably connected to the edge of the tray in the radial direction of the tray, and the adjustable connecting pieces are used for clamping the culture dishes in a matched mode. The connecting position of the adjustable connecting piece and the tray can be changed, the adjustable connecting piece and the tray can be matched with each other to clamp culture dishes with different sizes, the adaptability of the structure can be enhanced, the operation time for installing the culture dishes is shortened, and the air sampling efficiency is improved. The utility model further provides a planktonic bacteria sampler adopting the petri dish mounting structure, the mounting time of the petri dish can be shortened in the air sampling process, and the air sampling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of floating bacteria sampling, and in particular relates to a culture dish installation structure and a floating bacteria sampler. Background Art

[0002] The floating bacteria sampler is an efficient, powerful and stable air sampler, which is widely used in food and beverage, pharmaceutical, electronic, medical and health industries. It is based on the principle of Anderson impact method, which uses a built-in pump to suck air from the environment, allowing the air to pass through the porous sampling head and impact the culture medium to capture microorganisms in the air.

[0003] In the prior art, when using a planktonic bacteria sampler, the sampling head on the planktonic bacteria sampler is first removed, a culture dish is placed on the planktonic bacteria sampler, and then the sampling head is installed on the planktonic bacteria sampler so that the internal space of the sampling head covers the culture dish. Air enters the sampler from the opening on the sampling head and hits the culture dish, which can capture microorganisms in the air and then be discharged through the air outlet below the culture dish. In the prior art, only one specification of culture dish can be fixed on the sampler body. When using culture dishes of different models, the base and sampling head that match them need to be replaced, which is not conducive to efficient operation of air sampling. Utility Model Content

[0004] The embodiment of the utility model provides a culture dish installation structure and a planktonic bacteria sampler, aiming to solve the problem in the prior art that the planktonic bacteria sampler cannot adapt to culture dishes of different sizes and has low sampling efficiency.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a culture dish installation structure, including a base, a tray and a plurality of adjustable connecting parts; the base is used to be connected to the sampling interface of the planktonic bacteria sampler, and the base is provided with an exhaust hole; the tray is connected to the base to support the culture dish; the plurality of adjustable connecting parts are distributed at intervals along the circumference of the tray, and are respectively connected to the edge of the tray along the radial direction of the tray, and each adjustable connecting part is used to cooperate in clamping the culture dish.

[0006] In one possible implementation, the adjustable connecting member includes a moving block and a fixed rod. The moving block is slidably connected to the edge of the tray, and a through hole is provided on the side wall of the moving block. The fixed rod is screwed into the through hole, and a section of the fixed rod passes through the through hole and is slidably connected to the tray.

[0007] In a possible implementation, a fixing claw is provided on the moving block, and a groove with an opening toward the center of the tray is provided on the fixing claw, and an edge of the culture dish is embedded in the groove.

[0008] In a possible implementation manner, an elastic member is provided between the moving block and the tray.

[0009] In a possible implementation, a plurality of supporting feet are provided under the tray, and the plurality of supporting feet are used to form a first exhaust space between the tray and the base.

[0010] In a possible implementation, a groove is provided on a side wall of the support leg away from the exhaust space, and the adjustable connecting member is slidably connected to the groove along the radial direction of the tray.

[0011] In a possible implementation, a sealing ring is provided on the base, and the sealing ring is arranged around the tray, so that a second exhaust space is formed between the sealing ring and the tray.

[0012] In a possible implementation, the sealing ring is provided with an avoidance groove for the adjustable connecting member to pass through.

[0013] In a possible implementation, a peripheral wall of the sealing ring is provided with threads, and the threads are used for threaded engagement with the sampling head.

[0014] The beneficial effects of the culture dish installation structure provided by the utility model are as follows: compared with the prior art, the utility model adopts a base with an exhaust hole, which can cooperate with the sampling head to allow air to be discharged from the planktonic bacteria sampler after hitting the culture dish, thereby achieving air pressure balance in the planktonic bacteria sampler and allowing the culture dish sampling to proceed normally; multiple adjustable connecting member grooves can change the connection position with the tray, and can cooperate with each other to clamp culture dishes of different sizes, so that culture dishes of different sizes can be fixed on the tray, avoiding the inability to effectively fix the culture dish when replacing the culture dish, and there is no need to replace bases of different sizes to adapt to the culture dish, which can enhance the adaptability of the structure, reduce the operation time of installing the culture dish, and improve the air sampling efficiency.

[0015] The utility model also provides a floating bacteria sampler comprising a culture dish mounting structure.

[0016] The beneficial effect of the planktonic bacteria sampler provided by the utility model is that compared with the prior art, the planktonic bacteria sampler of the utility model adopts a culture dish installation interface provided with an adjustable connecting piece. When the number of planktonic bacteria collected by the culture dish in the sampler reaches a threshold, it needs to be replaced. By adjusting the adjustable connecting piece to clamp culture dishes of different specifications, the installation time of the culture dish can be reduced during the air sampling process, thereby improving the air sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of the culture dish installation structure provided in an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of the base used in the embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of the adjustable connecting member used in the embodiment of the utility model;

[0020] Figure 4 This is a front view structural schematic diagram of a tray used in an embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the three-dimensional structure of a tray used in an embodiment of the utility model;

[0022] Figure 6 A schematic diagram of the three-dimensional structure of the planktonic bacteria sampler provided in an embodiment of the utility model;

[0023] In the figure: 10, base; 11, exhaust hole; 20, tray; 21, support foot; 211, groove; 30, adjustable connecting piece; 31, moving block; 311, through hole; 32, fixing rod; 33, fixing claw; 331, groove; 34, elastic member; 40, sealing ring; 41, avoidance groove. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] Please also read Figure 1 and Figure 2The culture dish installation structure provided by the utility model is now described. The culture dish installation structure includes a base 10, a tray 20 and a plurality of adjustable connectors 30; the base 10 is used to be connected to the sampling interface of the planktonic bacteria sampler, and the base 10 is provided with an exhaust hole 11; the tray 20 is connected to the base 10, and is used to support the culture dish; the plurality of adjustable connectors 30 are distributed at intervals along the circumference of the tray 20, and are respectively slidably connected to the edge of the tray 20 along the radial direction of the tray 20, and each adjustable connector 30 is used to cooperate to clamp the culture dish.

[0027] It should be noted that the exhaust port is connected to the air outlet of the planktonic bacteria sampler, which is used to exhaust the air after hitting the culture dish; the tray 20 provides a planar support for the culture dish to prevent the culture dish from being deflected under the impact of air, making the sampling process more stable; multiple adjustable connectors 30 are slidably connected to the edge of the tray 20, which can change the connection position with the tray 20, so that culture dishes of different sizes can be fixed on the tray 20, avoiding the culture dish from shaking during sampling, and allowing the culture dish to be aligned with the opening on the sampling head to capture microorganisms in the air with maximum efficiency.

[0028] The beneficial effects of the culture dish installation structure provided by the utility model are as follows: compared with the prior art, the utility model adopts a base 10 with an exhaust hole 11, which can cooperate with the sampling head to allow air to be discharged from the planktonic bacteria sampler after hitting the culture dish, thereby achieving air pressure balance in the planktonic bacteria sampler and allowing the culture dish sampling to proceed normally; multiple adjustable connecting parts 30 grooves can change the connection position with the tray 20, and can cooperate with each other to clamp culture dishes of different sizes, so that culture dishes of different sizes can be fixed on the tray 20, avoiding the inability to effectively fix the culture dish when replacing the culture dish, and there is no need to replace the base 10 of different sizes to adapt to the culture dish, which can enhance the adaptability of the structure, reduce the operation time of installing the culture dish, and improve the air sampling efficiency.

[0029] In one possible implementation, see Figure 3 The adjustable connecting member 30 includes a moving block 31 and a fixing rod 32. The moving block 31 is slidably connected to the edge of the tray 20. A through hole 311 is provided on the side wall of the moving block 31. The fixing rod 32 is screwed into the through hole 311. A section of the fixing rod 32 passes through the through hole 311 and is slidably connected to the tray 20.

[0030] It should be noted that a plurality of moving blocks 31 slidably arranged on the tray 20 can change the relative distance between the tray 20 and the moving blocks 31. When the size of the culture dish changes, the position is changed by sliding the moving blocks 31, so that the adjustable connector 30 always clamps and fixes the culture dish placed on the tray 20, thereby improving the efficiency of installing the culture dish; the fixing rod 32 threadedly engaged with the moving block 31 can drive the moving block 31 to move closer to or away from the tray 20 by its own rotation, which can not only fix or loosen the adjustable connector 30 and the tray 20, but also enable the adjustable connector 30 to adapt to and clamp culture dishes of different sizes, thereby improving the sampling efficiency of the culture dishes; the end of the fixing rod 32 can be provided with a hexagonal notch, and the fixing rod 32 can be rotated by an hexagonal wrench to adjust the distance between the adjustable connector 30 and the tray 20.

[0031] In one possible implementation, see Figure 1 and Figure 3 The moving block 31 is provided with a fixing claw 33 , and the fixing claw 33 has a groove 331 opening toward the center of the tray 20 , and the edge of the culture dish is embedded in the groove 331 .

[0032] It should be noted that the fixing claws 33 are arranged on the side of the upper surface of the moving block 31 away from the tray 20. When the distance between the moving block 31 and the tray 20 is the smallest, the multiple fixing claws 33 cooperate with each other to make the multiple grooves 331 form a minimum clamping space. The volume of the minimum clamping space should be smaller than the volume of the smallest culture dish that can be used, so that culture dishes of different sizes can fit tightly with the grooves 331 and then be fixed on the tray 20; the bottom walls of the multiple grooves 331 cooperate with each other to limit the horizontal movement of the culture dish, and the side walls cooperate with each other to limit the movement of the culture dish in the vertical direction, ensuring that the culture dish is always aligned with the sampling head when sampling, which is beneficial to improving the sampling efficiency.

[0033] In one possible implementation, see Figure 3 An elastic member 34 is provided between the moving block 31 and the tray 20 .

[0034] It should be noted that the elastic member 34 can be a spring, and the fixed rod 32 passes through the elastic member 34 and is connected to the tray 20. When the fixed rod 32 rotates to control the moving block 31 to move away from the tray 20, the elastic member 34 generates a pulling force on the fixed rod 32 and cooperates with the through hole 311 and the internal thread of the tray 20 to fix the moving block 31 at any position, so as to cooperate with the remaining moving blocks 31 to change the clamping space of the culture dish. When fixing culture dishes of different sizes, the elastic member 34 can provide a pulling force to the moving block 31 so that the groove 331 clamps the culture dish, which can reduce the installation time of the culture dish and ensure that the culture dish is always aligned with the sampling head when sampling, which is beneficial to improving the sampling efficiency.

[0035] In one possible implementation, see Figure 4 A plurality of legs 21 are provided under the tray 20 , and the plurality of legs 21 are used to form a first exhaust space between the tray 20 and the base 10 .

[0036] It should be noted that the support legs 21 prop up the tray 20 so that there is a gap between the bottom wall of the tray 20 and the base 10. After hitting the culture dish, the air is discharged by the exhaust hole 11 through the first exhaust space below the tray 20; multiple support legs 21 make the tray 20 as a whole evenly stressed, avoiding the tray 20 from tilting in the horizontal direction, and also avoiding the bottom wall of the tray 20 from contacting the base 10, causing the tray 20 to block the exhaust port and affect the normal discharge of air. The provision of the support legs 21 is conducive to the smooth discharge of the air after hitting the culture dish out of the planktonic bacteria sampler, which is conducive to the normal sampling of the culture dish and improves the sampling efficiency.

[0037] In one possible implementation, see Figure 5 A groove 211 is formed on the side wall of the support leg 21 away from the exhaust space, and the adjustable connecting member 30 is slidably connected to the groove 211 along the radial direction of the tray 20 .

[0038] It should be noted that the vertically opened groove 211 makes the tray 20 have multiple notches, and the adjustable connecting piece 30 is slidably connected in the groove 211 along the horizontal direction. The moving block 31 can complement the notch on the tray 20. The groove 211 is provided with a blind hole with a thread, and can be threadedly matched with the fixing rod 32, so that the moving block 31 can change its position in the groove 211, so as to cooperate with each other to clamp the outer walls of culture dishes of different sizes, and enable the culture dishes to be fixed on the tray 20, so as to avoid the leakage of air containing microorganisms, reduce the installation time of the culture dishes, and improve the sampling efficiency of the culture dishes.

[0039] In one possible implementation, see Figure 5 A sealing ring 40 is disposed on the base 10 , and the sealing ring 40 is disposed around the tray 20 , and a second exhaust space is formed between the sealing ring 40 and the tray 20 .

[0040] It should be noted that the air after hitting the culture dish will roll upward along the inner wall edge of the culture dish, and be discharged downward due to the restriction of the top sampling head. The circumference of the sealing ring 40 is larger than the tray 20, so that the air can enter the first exhaust space below the tray 20 through the second exhaust space around the tray 20, and be discharged through the exhaust hole 11, which is conducive to the smooth discharge of the air after hitting the culture dish from the planktonic bacteria sampler, which is conducive to the normal sampling of the culture dish and improves the sampling efficiency.

[0041] In one possible implementation, see Figure 5 The sealing ring 40 is provided with an avoidance groove 41 for the adjustable connecting member 30 to pass through.

[0042] It should be noted that the avoidance groove 41 is aligned with the through hole 311 on the moving block 31, so that the fixing rod 32 can penetrate into the moving block 31 from the outside of the device, and when the fixing rod 32 is rotated using an Allen wrench, the avoidance groove 41 can provide an installation space for the adjustable connector 30, and can adjust the distance between the adjustable connector 30 and the tray 20; when the adjustable connector 30 clamps a larger culture dish, the distance between the inner wall of the sealing ring 40 and the adjustable connector 30 becomes smaller, and the avoidance hole allows the Allen wrench to smoothly extend into the sealing ring 40 to adjust the adjustable connector 30, thereby improving the adaptability of the device.

[0043] In one possible implementation, see Figure 5 The peripheral wall of the sealing ring 40 is provided with threads, and the threads are used for threaded connection with the sampling head.

[0044] It should be noted that a thread is provided on the outside of the sealing ring 40, which enables the sampling head to be rotatably installed and fixed on the outside of the sealing ring 40, thereby ensuring the fixed connection between the sampling head and the planktonic bacteria sampler when sampling; the thread on the outside of the sealing ring 40 can ensure that the sealing ring 40 is tightly connected to the sampling head, preventing the air inside the sampling head from leaking at the sealing ring 40, thereby ensuring the normal sampling and improving the sampling efficiency.

[0045] See also Figure 6 The utility model also provides a planktonic bacteria sampler including a culture dish mounting structure.

[0046] The working principle of the planktonic bacteria sampler provided by the utility model is: remove the sampling head from the planktonic bacteria sampler, place the culture dish on the tray 20, use the Allen wrench to adjust the adjustable connecting piece to fix the culture dish, reinstall the sampling head on the planktonic bacteria sampler, start the built-in pump to suck the air in the environment, let the air pass through the sampling head and hit the culture dish to capture the microorganisms in the air.

[0047] The beneficial effect of the planktonic bacteria sampler provided by the utility model is that compared with the prior art, the planktonic bacteria sampler of the utility model adopts a culture dish installation interface provided with an adjustable connecting piece 30. When the number of planktonic bacteria collected by the culture dish in the sampler reaches a threshold, it needs to be replaced. By adjusting the adjustable connecting piece 30 to clamp culture dishes of different specifications, the installation time of the culture dish can be reduced during the air sampling process, thereby improving the air sampling efficiency.

[0048] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A culture dish installation structure, characterized in that: include: A base, used to be connected to a sampling interface of a planktonic bacteria sampler, and the base is provided with an exhaust hole; A tray, connected to the base, for supporting the culture dish; A plurality of adjustable connecting members are distributed at intervals along the circumference of the tray and are respectively slidably connected to the edge of the tray along the radial direction of the tray. Each of the adjustable connecting members is used to cooperate and clamp the culture dish.

2. The culture dish installation structure according to claim 1, characterized in that: The adjustable connecting member includes a moving block and a fixed rod. The moving block is slidably connected to the edge of the tray. A through hole is provided on the side wall of the moving block. The fixed rod is screwed to the through hole. A section of the fixed rod passes through the through hole and is slidably connected to the tray.

3. The culture dish installation structure according to claim 2, characterized in that: The moving block is provided with a fixing claw, and the fixing claw is provided with a groove opening toward the center of the tray, and the edge of the culture dish is embedded in the groove.

4. The culture dish installation structure according to claim 2, characterized in that: An elastic member is provided between the moving block and the tray.

5. The culture dish installation structure according to claim 1, characterized in that: A plurality of supporting feet are arranged under the tray, and the plurality of supporting feet are used to form a first exhaust space between the tray and the base.

6. The culture dish installation structure according to claim 5, characterized in that: A groove is provided on the side wall of the support foot away from the exhaust space, and the adjustable connecting piece is slidably connected to the groove along the radial direction of the tray.

7. The culture dish installation structure according to claim 1, characterized in that: A sealing ring is provided on the base, and the sealing ring is arranged around the tray. A second exhaust space is formed between the sealing ring and the tray.

8. The culture dish installation structure according to claim 7, characterized in that: The sealing ring is provided with an avoidance groove for the adjustable connecting member to pass through.

9. The culture dish installation structure according to claim 7, characterized in that: The peripheral wall of the sealing ring is provided with threads, and the threads are used for threaded cooperation with the sampling head.

10. The floating bacteria sampler is characterized by: It comprises a culture dish mounting structure as described in any one of claims 1 to 9.

Images