A plankton sampler

Abstract

The utility model provides a kind of plankton sampler, including plankton sampler body, the upper surface of the plankton sampler body is equipped with sampling head, the cover of sampling head is equipped with mounting cover, the upper surface of the mounting cover is equipped with the connecting pipe being communicated with sampling head, the upper end of the connecting pipe is connected with telescopic pipe by flange, the telescopic pipe is evenly spaced apart and is equipped with several air inlets along its height direction, the telescopic pipe is concentric and is equipped with a filter bag, the lower end of the filter bag is closed structure, the air inlet is set on the protruding rib of telescopic pipe, the both side walls of the plankton sampler body are respectively equipped with fixed component symmetrically;Its structure design is simple and reasonable, easy to operate, can be adapted to different height plankton sampling, and also can preliminarily filter larger particles in air, ensure that the medium in plankton sampler is clean.

Description

Technical Field

[0001] This utility model belongs to the field of airborne bacteria sampling technology, and specifically relates to an airborne bacteria sampler. Background Technology

[0002] Airborne bacteria are live microbial particles suspended in the air. Using specialized culture media and suitable growth conditions, they multiply to visible colony counts. Airborne bacteria collectors can accurately reflect the microbial concentration in cleanrooms and are commonly used for airborne microbial detection in cleanrooms and sterile environments such as pharmaceutical GMP plants, dairy plants, hospital operating rooms, biological cleanrooms, and fermentation industries. They are also used for airborne microbial sampling research in research and teaching departments. Airborne bacteria collectors typically include a main unit, which, from top to bottom, consists of an air duct, a filter plate, a petri dish, and an exhaust fan. When the operator starts the exhaust fan, outside air is drawn into the main unit through the air duct. Live microbial ions in the air are filtered through the filter plate and enter the petri dish, facilitating sampling and research of airborne microorganisms. However, in existing technologies, because the sampler is usually at a fixed height, when air circulation at the sampling location is poor, the sample obtained at that fixed height will have a lower concentration of airborne bacteria at that height, thus limiting the effectiveness of airborne bacteria collectors.

[0003] In view of this, in order to solve the above-mentioned technical problems, this utility model proposes a planar bacteria sampler that can adapt to different altitudes for sampling of airborne bacteria and can also initially filter larger particles in the air to ensure the cleanliness of the culture medium inside the planar bacteria sampler; it has the advantages of simple and reasonable structural design, convenient operation, and strong practicality. Utility Model Content

[0004] This utility model provides a planktonic bacteria sampler with a simple and reasonable structural design, convenient operation, and adaptability to planktonic bacteria sampling at different heights. It also provides preliminary filtration of larger particles in the air, ensuring the cleanliness of the culture medium inside the sampler. The specific solution is as follows: A planktonic bacteria sampler includes a planktonic bacteria sampler body, a sampling head on the upper surface of the planktonic bacteria sampler body, a mounting cover on the sampling head, a connecting pipe communicating with the sampling head on the upper surface of the mounting cover, a telescopic pipe connected to the upper end of the connecting pipe via a flange, a plurality of air inlets evenly spaced along the height direction of the telescopic pipe, a filter bag concentrically arranged inside the telescopic pipe, the lower end of the filter bag being a closed structure, the air inlets being opened on the protruding ribs of the telescopic pipe, and fixing components symmetrically arranged on both sides of the planktonic bacteria sampler body.

[0005] Furthermore, the fixing assembly includes a U-shaped mounting bracket, a connecting rod, an L-shaped support rod, and a suction cup. The U-shaped mounting bracket is fixed on the lower side wall of the airborne bacteria sampler body. The connecting rod is horizontally arranged inside the U-shaped mounting bracket. The L-shaped support rod is sleeved on the connecting rod through a sleeve. The suction cup is arranged on the end of the L-shaped support rod away from the connecting rod.

[0006] Furthermore, a torsion spring is fitted onto the connecting rod, and one end of the torsion spring is connected to the L-shaped support rod.

[0007] Furthermore, a connecting ring is horizontally fixed to the outer side of the top of the telescopic tube, and telescopic rods are vertically upward on both sides of the mounting cover. The tops of the two telescopic rods are respectively connected to the connecting ring by screws.

[0008] Furthermore, the lower end of the connecting tube is provided with an extension section that can extend into the inside of the sampling head, and the outer side of the extension section is closely attached to the inner side of the sampling head.

[0009] Furthermore, multiple gravity rings are fixed at intervals along the height direction on the outer periphery of the filter bag.

[0010] Furthermore, the upper end of the telescopic tube is provided with a dust cover, and the inner side of the dust cover is fitted to the outer side of the mounting cover.

[0011] Furthermore, the sampling head has multiple limiting grooves spaced apart on its outer periphery, and the mounting cover has limiting blocks that are circumferentially fixed to the inner side of the mounting cover.

[0012] Furthermore, lifting rings are provided on both sides of the main body of the airborne bacteria sampler.

[0013] The beneficial effects of this utility model are: This utility model discloses a planar microbial sampler. By setting up a telescopic tube with several air inlets and a filter bag inside the telescopic tube, when the fan of the planar microbial sampler is started and draws in air, the air enters the telescopic tube through the air inlets and the upper end of the telescopic tube. The filter bag performs preliminary filtration of the air and blocks larger particles in the air, thereby ensuring the cleanliness of the culture medium inside the planar microbial sampler. The telescopic tube and the several air inlets can adapt to planar microbial sampling at different heights, improving sampling efficiency and the practicality of the sampler. It also has the advantages of simple and reasonable structural design and convenient operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the airborne bacteria sampler body of this utility model.

[0016] Figure 3This is a schematic diagram of the upper part of the airborne bacteria sampler body of this utility model.

[0017] Figure 4 This is a partial sectional view of the present invention.

[0018] Figure 5 This is a diagram showing the connection between the filter bag and the gravity ring of this utility model.

[0019] Figure 6 This is a schematic diagram of the fixing component of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Airborne bacteria sampler body; 101. Sampling head; 2. Mounting cover; 3. Connecting tube; 4. Telescopic tube; 5. Air inlet; 6. Filter bag; 7. Fixing assembly; 701. U-shaped mounting bracket; 702. Connecting rod; 703. L-shaped support rod; 704. Suction cup; 705. Torsion spring; 8. Connecting ring; 9. Telescopic rod; 10. Extension section; 11. Dust cover; 12. Limiting groove; 13. Limiting block; 14. Lifting ring; 15. Gravity ring. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] See Figure 1-6 A planktonic bacteria sampler includes a planktonic bacteria sampler body 1. A sampling head 101 is provided on the upper surface of the planktonic bacteria sampler body 1. A mounting cover 2 is provided on the sampling head 101, wherein the inner side of the mounting cover 2 is tightly fitted to the outer side of the sampling head 101. A connecting pipe 3 communicating with the sampling head 101 is provided on the upper surface of the mounting cover 2. A telescopic pipe 4 is connected to the upper end of the connecting pipe 3 through a flange. The upper end of the connecting pipe 3 and the lower end of the telescopic pipe 4 are respectively connected to flanges and are detachably connected by bolts. A plurality of air inlets 5 are evenly spaced along the height direction of the telescopic pipe 4. A filter bag 6 is concentrically provided inside the telescopic pipe 4. The lower end of the filter bag 6 is a closed structure. The lower end of the filter bag 6 has an outer edge, which is placed in the middle of the two flanges and fixed by bolts. The upper end of the filter bag 6 is connected to the upper end of the telescopic pipe 4. The air inlets 5 are opened on the protruding ribs of the telescopic pipe 4. Fixing components 7 are symmetrically provided on both sides of the planktonic bacteria sampler body 1.

[0023] The preferred fixing component 7 includes a U-shaped mounting bracket 701, a connecting rod 702, an L-shaped support rod 703, and a suction cup 704. The U-shaped mounting bracket 701 is fixed on the lower side wall of the airborne bacteria sampler body 1. The connecting rod 702 is horizontally arranged inside the U-shaped mounting bracket 701. The L-shaped support rod 703 is sleeved on the connecting rod 702 through a sleeve. The suction cup 704 is arranged on the end of the L-shaped support rod 703 away from the connecting rod 702, wherein the open end of the suction cup 704 faces the side away from the airborne bacteria sampler body 1. When collecting airborne bacteria, the airborne bacteria sampler body 1 is first placed on the table, and then each L-shaped support rod 703 is moved to make the suction cup 704 stick to the table, so that the airborne bacteria sampler body 1 can be fixed and avoid displacement of the airborne bacteria sampler body 1 during the sampling process, which would cause inconvenience.

[0024] A torsion spring 705 is fitted on the preferred connecting rod 702. One end of the torsion spring 705 is connected to the L-shaped support rod 703. The design of the torsion spring 705 makes it easy to fix the component 7 tightly against the side of the airborne bacteria sampler body 1 when idle, without taking up space.

[0025] A connecting ring 8 is horizontally fixed on the outer side of the top end of the preferred telescopic tube 4. Telescopic rods 9 are vertically upward on both sides of the mounting cover 2. The top ends of the two telescopic rods 9 are detachably connected to the connecting ring 8 by screws. The upper end of the filter bag 6 is connected to the outer edge and fixed to the connecting tube 8 by screws. The design of the two telescopic rods 9 is convenient to fix the telescopic tube 4 to a certain extent when the telescopic tube 4 is stretched to increase the sampling height.

[0026] The preferred connecting tube 3 has an extension section 10 at its lower end that can extend into the inside of the sampling head 101. The outer side of the extension section 10 is closely attached to the inner side of the sampling head 101. The design of the extension section 10 facilitates the installation of the cover 2 and better fixes it to the sampling head 101.

[0027] The preferred filter bag 6 has multiple gravity rings 15 fixed at intervals along its height direction on its outer periphery. The design of the gravity rings 15 facilitates the stability of the filter bag 6 during the process of starting the induced draft fan to draw in air, and avoids the filter bag 6 from shaking violently.

[0028] The preferred telescopic tube 4 is provided with a dust cover 11 at the upper end. The inner side of the dust cover 11 fits snugly against the outer side of the mounting cover 2. The design of the dust cover 11 allows the airborne bacteria sampler body 1 to be covered by the dust cover 11 at the upper end of the telescopic tube 4 when it is not in use, thus preventing dust and other impurities from entering the sampling head 101 and keeping it clean.

[0029] The preferred sampling head 101 has multiple limiting grooves 12 spaced apart on its outer periphery, and the mounting cover 2 has limiting blocks 13, which are suitable for the limiting grooves 12, fixedly fixed on its inner circumferential side, which further improves the stability of the mounting cover 2.

[0030] The preferred airborne bacteria sampler body 1 is provided with lifting rings 14 on both sides of its main body, and the design of the lifting rings 14 makes it easier to carry and save effort during transportation.

[0031] The working principle of this utility model: During sampling, first place the airborne bacteria sampler body 1 on the table, then bend each L-shaped support rod 703 to make the suction cup 704 stick to the table, thus fixing the airborne bacteria sampler body 1 and preventing displacement of the airborne bacteria sampler body 1 during sampling. Then remove the dust cover 11 and stretch the telescopic tube 4 to its highest position, so that air at different heights can be drawn in to ensure that a sufficient amount of airborne bacteria are drawn in, thereby improving sampling efficiency. Then the sampling work can begin. When the exhaust fan is turned on to draw in air, the air enters the interior of the telescopic tube 4 through several air inlets 5 and the upper end of the telescopic tube 4. At this time, the filter bag 6 can preliminarily filter and retain larger particles in the air, thereby ensuring the cleanliness of the culture medium inside the airborne bacteria sampler.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A planar bacteria sampler, characterized in that: The sampler includes a planktonic bacteria sampler body (1), a sampling head (101) on the upper surface of the planktonic bacteria sampler body (1), a mounting cover (2) on the sampling head (101), a connecting pipe (3) communicating with the sampling head (101) on the upper surface of the mounting cover (2), a telescopic pipe (4) connected to the upper end of the connecting pipe (3) through a flange, a number of air inlets (5) are evenly spaced along the height direction of the telescopic pipe (4), a filter bag (6) is concentrically arranged inside the telescopic pipe (4), the lower end of the filter bag (6) is a closed structure, the air inlets (5) are opened on the protruding ribs of the telescopic pipe (4), and fixing components (7) are symmetrically arranged on both sides of the planktonic bacteria sampler body (1).

2. The airborne bacteria sampler according to claim 1, characterized in that: The fixing component (7) includes a U-shaped mounting bracket (701), a connecting rod (702), an L-shaped support rod (703), and a suction cup (704). The U-shaped mounting bracket (701) is fixed on the lower side wall of the airborne bacteria sampler body (1). The connecting rod (702) is horizontally arranged inside the U-shaped mounting bracket (701). The L-shaped support rod (703) is sleeved on the connecting rod (702) through a sleeve. The suction cup (704) is arranged on the end of the L-shaped support rod (703) away from the connecting rod (702).

3. The airborne bacteria sampler according to claim 2, characterized in that: A torsion spring (705) is fitted on the connecting rod (702), and one end of the torsion spring (705) is connected to the L-shaped support rod (703).

4. The airborne bacteria sampler according to claim 1, characterized in that: A connecting ring (8) is horizontally fixed on the outer side of the top end of the telescopic tube (4), and telescopic rods (9) are vertically upward on both sides of the mounting cover (2). The top ends of the two telescopic rods (9) are respectively connected to the connecting ring (8) by screws.

5. The airborne bacteria sampler according to claim 1, characterized in that: The lower end of the connecting tube (3) is provided with an extension section (10) that can extend into the inside of the sampling head (101), and the outer side of the extension section (10) is closely attached to the inner side of the sampling head (101).

6. The airborne bacteria sampler according to claim 1, characterized in that: The filter bag (6) has multiple gravity rings (15) fixed at intervals along its height direction on its outer periphery.

7. The airborne bacteria sampler according to claim 1, characterized in that: The telescopic tube (4) is provided with a dust cover (11) at the upper end, and the inner side of the dust cover (11) is fitted to the outer side of the mounting cover (2).

8. The airborne bacteria sampler according to claim 1, characterized in that: The sampling head (101) has multiple limiting grooves (12) spaced apart on its outer periphery, and the mounting cover (2) has limiting blocks (13) spaced apart on its inner periphery, which are suitable for the limiting grooves (12).

9. The airborne bacteria sampler according to claim 1, characterized in that: The airborne bacteria sampler body (1) is provided with lifting rings (14) on both sides of its two sides.

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