A plankton sampler

Abstract

This utility model discloses an airborne bacteria sampler, relating to the field of microbial detection equipment technology. It includes a sampler body, a support frame movably connected to the outer side of the sampler body, a support base fixedly connected to the bottom of the support frame, a control panel fixedly installed on the top of the support base, and a sampling tube detachably connected inside the sampler body. It also includes: a disassembly mechanism located at the bottom of the sampling tube for convenient disassembly and maintenance of the filter assembly; and a buffer mechanism located inside the sampling tube for buffering and protecting the filter assembly, reducing damage to the sampler.

Description

Technical Field

[0001] This utility model relates to the field of microbial detection equipment technology, specifically to a planar bacteria sampler. Background Technology

[0002] Airborne bacteria refer to live microbial particles suspended in the air. Their quantity and types are closely related to the quality of ambient air. The detection of airborne bacteria is of great significance in fields such as medicine, food, electronics, and biological laboratories. Airborne bacteria samplers are the key equipment for achieving this detection.

[0003] Among the existing technical solutions, CN112080408B discloses a planar bacteria sampler, which includes a base, a shell, a cover, a movable culture dish placement block, a fan, and a control circuit. The shell is fixedly connected to an upper base plate by bolts on the upper part of the base. A lower base plate is welded and installed below the base. A partition is welded and installed inside the shell. A grooved plate is welded and installed inside the shell. The grooved plate is located below the partition. A movable culture dish placement block is fixedly installed above the partition. A fan is installed through the partition.

[0004] The existing sampler filter is inconvenient to replace. After a long period of sampling, the filter membrane is prone to clogging and needs to be replaced in time to ensure sampling efficiency. However, the replacement process often requires disassembling many parts, which is cumbersome and time-consuming. Utility Model Content

[0005] The purpose of this invention is to provide a planktonic bacteria sampler to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A planktonic bacteria sampler includes a sampler body, a support frame movably connected to the outside of the sampler body, a support base fixedly connected to the bottom of the support frame, a control panel fixedly installed on the top of the support base, and a sampling tube detachably connected to the inside of the sampler body.

[0008] Also includes:

[0009] A disassembly mechanism is provided at the bottom of the sampling cylinder for convenient disassembly and maintenance of the filter assembly;

[0010] A buffer mechanism is installed inside the sampling cylinder to buffer and protect the filter components, reducing damage to the sampler.

[0011] A further improvement of the present invention is that the disassembly mechanism includes a sampling cover, the bottom of which is provided with a filter hole, and the top of the inner side of the sampling cover is threadedly connected to a threaded shaft, the top of which is fixedly installed at the bottom of the sampling tube.

[0012] A further improvement of this utility model is that a sealing gasket is fixedly installed at the bottom of the threaded shaft, and the bottom of the sealing gasket is movably installed at the top inside the sampling cover.

[0013] A further improvement of the present invention is that the buffer mechanism includes a mounting plate, a buffer column is fixedly installed on the bottom of one side of the mounting plate, a connecting block is fixedly installed on the bottom of the buffer column, and an assembly rod is movably installed on the bottom of the connecting block.

[0014] A further improvement of this utility model is that: a filter shell is detachably connected to the inner side of the assembly rod, a filter cartridge is fixedly installed inside the filter shell, and a filter membrane is fixedly installed at the bottom of the filter cartridge.

[0015] A further improvement of this utility model is that: a connecting column is fixedly installed at the bottom of the filter cartridge, a limiting tube is movably sleeved on the outer side of the bottom of the connecting column, and the bottom of the limiting tube is fixedly installed inside the sampling cover.

[0016] A further improvement of the present invention is that: a buffer groove is provided on the inner wall of the limiting tube, a rebound column is fixedly installed inside the buffer groove, a clamp is movably connected to the telescopic end of the rebound column, and the inner side of the clamp is arranged on the outer side of the bottom of the connecting column.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] 1. This utility model provides an airborne bacteria sampler. By moving the sampling cover downward along the threaded shaft, the sampling cover can be easily removed, thereby facilitating the disassembly, replacement, or cleaning of the filter assembly. This significantly reduces maintenance difficulty and saves maintenance time. The top of the threaded shaft is fixed to the bottom of the sampling tube, and the sealing gasket at the bottom is tightly fitted to the top of the inner side of the sampling cover. With the pre-tightening force generated by the threaded connection, the sealing gasket can be compressed and deformed. This deformation can effectively fill the gap between the threaded shaft and the sampling cover, completely blocking the airflow inside the sampling tube from leaking out of the gap, and providing a reliable sealing guarantee for airflow.

[0019] 2. This utility model provides an airborne bacteria sampler. By adjusting the sampling cover and filter cartridge, the connecting column can be precisely inserted into the limiting tube. At this time, the rebound column in the buffer groove on the inner wall of the limiting tube is in a naturally extended state. The clamp connected to its telescopic end can always maintain a tendency to move towards the center of the limiting tube under the thrust of the rebound column, thus tightly fitting against the outer bottom of the connecting column. This matching method can form a stable limiting constraint on the connecting column, effectively preventing the connecting column from loosening or shifting during equipment operation, providing reliable fixation for the connection between the sampling cover and the filter cartridge, and ensuring the stability of the entire sampling structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of the sampler of this utility model;

[0022] Figure 3 This is a schematic diagram of the sampling tube structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the mounting plate structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the limiting tube structure of this utility model.

[0025] In the diagram: 1. Sampler body; 2. Support frame; 3. Support base; 4. Control panel; 5. Sampling cylinder; 54. Threaded shaft; 55. Sealing gasket; 56. Sampling cover; 541. Assembly rod; 542. Mounting plate; 543. Buffer column; 544. Connecting block; 551. Filter shell; 552. Filter cylinder; 553. Filter membrane; 554. Connecting column; 561. Limiting tube; 562. Buffer groove; 563. Rebound column; 564. Clamping plate. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to embodiments:

[0027] like Figure 1-5 As shown, this utility model has the following three specific embodiments.

[0028] Example 1

[0029] This utility model provides a planar bacteria sampler, including a sampler body 1, a support frame 2 movably connected to the outside of the sampler body 1, a support base 3 fixedly connected to the bottom of the support frame 2, a control panel 4 fixedly installed on the top of the support base 3, and a sampling tube 5 detachably connected inside the sampler body 1.

[0030] Also includes:

[0031] The disassembly mechanism is located at the bottom of the sampling cylinder 5 for easy disassembly and maintenance of the filter assembly;

[0032] A buffer mechanism is installed inside the sampling cylinder 5 to buffer and protect the filter components, reducing damage to the sampler.

[0033] like Figure 1 As shown, the support frame 2 is movably connected to the outside of the sampler body 1, allowing for height adjustment to suit different usage scenarios. The control panel 4 is electrically connected to the controller inside the sampler body 1, which, together with the sampler inside the sampling tube 5, provides suction, allowing external air to enter the sampling tube 5 under negative pressure. The filter component inside the sampling tube 5 traps airborne bacteria, while clean air passes through. During the filtration process, a buffer mechanism is installed on the inner wall of the sampling tube 5, absorbing vibration energy through its own structural characteristics to ensure the stability of the filtration effect during sampling and reduce sampling data deviation caused by damage to the filter component. The sampling tube 5 is easily installed and disassembled via a threaded connection mechanism, allowing staff to easily disassemble, replace, or clean the filter component.

[0034] Example 2

[0035] The difference from Embodiment 1 is that this embodiment discloses a sampling cover 56 and a mounting plate 542. The disassembly mechanism includes the sampling cover 56, with filter holes at the bottom of the sampling cover 56. A threaded shaft 54 ​​is threadedly connected to the top of the inner side of the sampling cover 56. The top of the threaded shaft 54 ​​is fixedly installed at the bottom of the sampling cylinder 5, and a sealing gasket 55 is fixedly installed at the bottom of the threaded shaft 54. The bottom of the sealing gasket 55 is movably installed at the top of the inner side of the sampling cover 56. The buffer mechanism includes the mounting plate 542, with a buffer column 543 fixedly installed at the bottom of one side of the mounting plate 542. A connecting block 544 is fixedly installed at the bottom of the buffer column 543. An assembly rod 541 is movably installed at the bottom of the connecting block 544. A filter shell 551 is detachably connected to the inner side of the assembly rod 541. A filter cylinder 552 is fixedly installed inside the filter shell 551, and a filter membrane 553 is fixedly installed at the bottom of the filter cylinder 552.

[0036] like Figure 2 , 3As shown in Figure 4, the top of the threaded shaft 54 ​​is fixed to the bottom of the sampling cylinder 5, and the sealing gasket 55 at the bottom is tightly fitted to the top of the inner side of the sampling cover 56. The pre-tightening force of the threaded connection causes the sealing gasket 55 to undergo compression deformation, blocking the airflow inside the sampling cylinder 5 from leaking from the gap between the sampling cover 56 and the threaded shaft 54. This ensures that all air entering the sampling cylinder 5 flows through the filter assembly, preventing unfiltered air from directly entering the air pump and causing sampling data deviation. During disassembly and maintenance, the sampling cover 56 moves downward along the threaded shaft 54 ​​and disengages from the sealing gasket 55 at the bottom of the threaded shaft 54. At this time, the sampling cover 56 can be removed, thus facilitating the disassembly of the filter assembly. In addition, the mounting rod 541 is assembled with the mounting plate 542 on the top of the filter shell 551. The buffer column 543 absorbs longitudinal vibration energy through compression or tension deformation, providing buffer protection and facilitating the stable capture of airborne bacteria by the sampler.

[0037] Example 3

[0038] The difference from Embodiment 2 is that this embodiment discloses a filter cartridge 552 and a limiting tube 561. A connecting column 554 is fixedly installed at the bottom of the filter cartridge 552. The limiting tube 561 is movably sleeved on the outer side of the bottom of the connecting column 554. The bottom of the limiting tube 561 is fixedly installed inside the sampling cover 56. A buffer groove 562 is opened on the inner wall of the limiting tube 561. A rebound column 563 is fixedly installed inside the buffer groove 562. A clamping plate 564 is movably connected to the telescopic end of the rebound column 563. The inner side of the clamping plate 564 is arranged on the outer side of the bottom of the connecting column 554.

[0039] like Figure 5 As shown, the sampling cover 56 and the filter cartridge 552 are adjusted so that the connecting column 554 is inserted into the inside of the limiting tube 561. The rebound column 563 in the buffer groove 562 on the inner wall of the limiting tube 561 is in a naturally extended state. The clamp 564 connected to its telescopic end is always kept close to the center of the limiting tube 561 under the pushing force of the rebound column 563, so as to fit tightly against the outer side of the bottom of the connecting column 554, achieving the function of limiting and fixing, and facilitating the convenient assembly of the sampling device.

[0040] The working principle of this airborne bacteria sampler will be explained in detail below.

[0041] like Figure 1-5As shown, the support frame 2 is movably connected to the outside of the sampler body 1, allowing for height adjustment to suit different placement requirements. The control panel 4 is electrically connected to the controller inside the sampler body 1. This, in conjunction with the suction provided by the sampler inside the sampling cylinder 5, allows external air to enter the sampling cylinder 5 under negative pressure. The top of the threaded shaft 54 ​​is fixed to the bottom of the sampling cylinder 5, and the bottom sealing gasket 55 tightly adheres to the top inner side of the sampling cover 56. The pre-tightening force of the threaded connection causes the sealing gasket 55 to compress and deform, blocking airflow from the sampling cover 56 and the threaded shaft 54 ​​inside the sampling cylinder 5. The gap leakage of 4 ensures that all air entering the sampling tube 5 flows through the filter assembly, avoiding unfiltered air from directly entering the suction pump and causing sampling data deviation. During disassembly and maintenance, the sampling cover 56 moves downward along the threaded shaft 54 ​​and disengages from the sealing gasket 55 at the bottom of the threaded shaft 54. At this time, the sampling cover 56 can be removed, thus facilitating the disassembly of the filter assembly. In addition, the mounting rod 541 is assembled with the mounting plate 542 on the top of the filter shell 551. The buffer column 543 absorbs longitudinal vibration energy through compression or stretching deformation, providing buffer protection and facilitating the stable capture of airborne bacteria by the sampler.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A planar microbial sampler, comprising a sampler body (1), characterized in that: A support frame (2) is movably connected to the outside of the sampler body (1), a support base (3) is fixedly connected to the bottom of the support frame (2), a control panel (4) is fixedly installed on the top of the support base (3), and a sampling tube (5) is detachably connected inside the sampler body (1). Also includes: A disassembly mechanism is provided at the bottom of the sampling tube (5) for convenient disassembly and maintenance of the filter assembly; A buffer mechanism is provided inside the sampling tube (5) to buffer and protect the filter components and reduce damage to the sampler.

2. The airborne bacteria sampler according to claim 1, characterized in that: The disassembly mechanism includes a sampling cover (56), the bottom of which is provided with a filter hole, and the top of the inner side of the sampling cover (56) is threadedly connected to a threaded shaft (54), the top of which is fixedly installed at the bottom of the sampling tube (5).

3. The airborne bacteria sampler according to claim 2, characterized in that: A sealing gasket (55) is fixedly installed at the bottom of the threaded shaft (54), and the bottom of the sealing gasket (55) is movably installed on the top of the inner side of the sampling cover (56).

4. The airborne bacteria sampler according to claim 1, characterized in that: The buffer mechanism includes a mounting plate (542), a buffer column (543) is fixedly installed on the bottom of one side of the mounting plate (542), a connecting block (544) is fixedly installed on the bottom of the buffer column (543), and an assembly rod (541) is movably installed on the bottom of the connecting block (544).

5. The airborne bacteria sampler according to claim 4, characterized in that: The inner side of the assembly rod (541) is detachably connected to a filter shell (551), and a filter cartridge (552) is fixedly installed inside the filter shell (551). A filter membrane (553) is fixedly installed at the bottom of the filter cartridge (552).

6. The airborne bacteria sampler according to claim 5, characterized in that: A connecting column (554) is fixedly installed at the bottom of the filter cartridge (552). A limiting tube (561) is movably sleeved on the outer side of the bottom of the connecting column (554). The bottom of the limiting tube (561) is fixedly installed inside the sampling cover (56).

7. The airborne bacteria sampler according to claim 6, characterized in that: The inner wall of the limiting tube (561) is provided with a buffer groove (562), and a rebound column (563) is fixedly installed inside the buffer groove (562). The telescopic end of the rebound column (563) is movably connected to a clamp (564), and the inner side of the clamp (564) is located on the outer side of the bottom of the connecting column (554).

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