Brand-new multifunctional microorganism sampling equipment

Abstract

The utility model provides brand-new multifunctional microorganism sampling equipment, and belongs to the technical field of sampling equipment. The brand-new multifunctional microorganism sampling equipment comprises a lower shell, a lower shell and a sampling structure. An air hole is formed in one side of the lower shell, a control screen is installed on the upper shell, the sampling structure comprises a sampling base and a sampling part, the sampling base is installed in the lower shell, a pressure regulating valve is installed on the other side of the sampling base, a flow sensor is installed on the pressure regulating valve, and the sampling part is installed on the lower shell. The flow sensor is mounted on the inner side of the upper shell, the sampling driving piece is mounted on the connecting pipe, a culture dish is mounted on the top surface of the mounting seat, and the sampling part is mounted on the movable positioning piece and the fixing sleeve. According to the utility model, the carrying quantity of equipment and the trouble caused by replacing the equipment can be reduced, the use convenience can be improved, and different sampling requirements can be more conveniently met.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling equipment, in particular to a new multifunctional microbial sampling equipment. Background Art

[0002] In the food and pharmaceutical industries, sterile control of the production environment is extremely stringent. The pharmaceutical industry, in particular, has strict requirements for the number of airborne microorganisms in high-cleanliness-grade production areas. For example, Class B clean areas require no more than 10 cfu of microorganisms per cubic meter, and Class A clean areas require less than 1 cfu of microorganisms per cubic meter. Routine production activities also pose potential risks to the sterile environment of clean areas. Therefore, regular testing of airborne microorganisms in clean areas is necessary. In the food and pharmaceutical industries, compressed air, nitrogen, oxygen, and other gases are commonly used in sterile production. Compressed gases are extremely important for sterile control in clean areas, primarily because they come into direct contact with sterile spaces or sterile products after use. In the food and pharmaceutical industries, testing of compressed gases is often performed in addition to testing for airborne microorganisms.

[0003] Currently, sampling requires two separate devices, which is too much equipment to carry. The sampling process requires carrying a large number of culture dishes with culture media, an additional device, and connecting pipes, making operation inconvenient. In the same room, both floating bacteria and compressed gas samples often need to be sampled, and switching between devices is also cumbersome. This also greatly affects the accuracy of the collection. Therefore, it is necessary to propose a new multifunctional microbial sampling device to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, the present invention provides a new multifunctional microbial sampling device, which aims to improve the problem of using two devices for sampling separately. This device is too much to carry, and during the sampling process, a large number of culture dishes with culture media need to be carried. The additional device and connecting pipes are inconvenient to operate. In the same room, both floating bacteria and compressed gas samples often need to be sampled, and switching between devices is also troublesome. This also greatly affects the accuracy of the collection.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a new multifunctional microorganism sampling device, comprising a lower shell, an upper shell installed on the lower shell, and a sampling structure installed inside the lower shell and the upper shell.

[0007] An air hole is opened on one side of the lower shell, and a control screen is installed on the upper shell. The sampling structure includes a sampling base, a sampling drive, a movable positioning member and a sampling part. The sampling base is installed inside the lower shell, and a connecting pipe is connected and fixed to one side of the sampling base. A pressure regulating valve is installed on the other side of the sampling base, and a flow sensor is installed on the pressure regulating valve. The flow sensor is installed on the inner side of the upper shell, the sampling drive is installed on the connecting pipe, a fixed sleeve is installed on the sampling base, the movable positioning member is installed on the fixed sleeve and the sampling base, a mounting seat is installed on the top surface of the fixed sleeve, a culture dish is installed on the top surface of the mounting seat, and the sampling part is installed on the movable positioning member and the fixed sleeve.

[0008] In one embodiment of the present utility model, the sampling drive component includes an automatic valve, a fan and an exhaust pipe, the automatic valve is installed on one side of the connecting pipe, the fan is installed at the end of the connecting pipe, the exhaust pipe is installed at the air hole, and the exhaust pipe is connected to the air outlet end of the fan.

[0009] In one embodiment of the present invention, a sealing ring is installed at the annular notch on the fixing sleeve, and a limiting ring is provided at the end of the fixing sleeve.

[0010] In an embodiment of the present invention, the movable positioning member includes a movable sleeve and a tension spring. The movable sleeve is sleeved on the outer surface of the fixed sleeve, and the tension spring is hung at the sampling base and the through holes of the movable sleeve.

[0011] In one embodiment of the present utility model, the sampling part includes a planktonic bacteria sampling cover and a compressed gas sampling cover. The planktonic bacteria sampling cover is sleeved on the upper end of the fixed cover. The inner surface of the lower end of the planktonic bacteria sampling cover is tightly attached to the surface of the sealing ring. A card interface is provided at the lower end of the compressed gas sampling cover, and the card interface is carded on the movable cover.

[0012] In one embodiment of the present invention, an air inlet pipe is formed on the top surface of the compressed gas sampling cover, a diffuser plate is installed inside the compressed gas sampling cover, and a static pressure chamber is formed between the diffuser plate and the compressed gas sampling cover.

[0013] In an embodiment of the present invention, a power module is further installed inside the lower shell.

[0014] The beneficial effect of the present invention is that the present invention obtains a new multifunctional microbial sampling device through the above design. When it is necessary to sample planktonic bacteria, the planktonic bacteria sampling cover is put on the upper end of the fixed cover and sealed with the sealing ring. At this time, the automatic valve is opened, and the fan is used to run and extract air from the environment. The air flows downward through the planktonic bacteria sampling cover and hits the culture dish. Then the air flows downward through the air holes at the lower end of the mounting seat. In this way, the microorganisms are trapped by the culture medium on the culture dish. The air is then discharged to the outside through the sampling base, the automatic valve, and the fan. Sampling is stopped after a certain amount of air is collected on the culture dish.

[0015] When compressed gas sampling is required, the planktonic bacteria sampling cover is removed from the fixed cover, and then the compressed gas sampling cover is pressed downward. At this time, the bottom of the compressed gas sampling cover squeezes the movable cover and causes the tension spring to elastically stretch. When the card interface is connected to the movable cover, the automatic valve is closed, and the upper end of the compressed gas sampling cover is connected to the external compression tube. The compressed gas flows downward through the compressed gas sampling cover and hits the culture dish. The microorganisms are trapped by the culture medium on the culture dish. The gas then passes through the sampling base, the pressure regulating valve, the flow sensor and the air hole in turn and is discharged to the outside. When the flow sensor detects the amount of collected gas, sampling is stopped. This can reduce the amount of equipment carried and the trouble of changing equipment during use, which is conducive to improving the convenience of use and making it more convenient to deal with different sampling needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic structural diagram of a new multifunctional microbial sampling device provided by an embodiment of the present utility model;

[0018] Figure 2 A schematic diagram of the exploded structure of a new multifunctional microbial sampling device provided by the embodiment of the present utility model;

[0019] Figure 3 A schematic diagram of the sampling structure of a new multifunctional microbial sampling device provided in an embodiment of the present utility model;

[0020] Figure 4 A schematic diagram of the sampling structure of the new multifunctional microbial sampling device provided by the embodiment of the utility model;

[0021] Figure 5A schematic cross-sectional view of a compressed gas sampling cover of a new multifunctional microbial sampling device provided by an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the sampling process of the new multifunctional microbial sampling equipment provided in the embodiment of the utility model.

[0023] In the figure: 100-lower shell; 110-air hole; 200-upper shell; 210-control panel; 300-sampling structure; 310-sampling base; 311-connecting pipe; 312-pressure regulating valve; 313-flow sensor; 320-sampling drive; 321-automatic valve; 322-fan; 323-exhaust pipe; 330-fixing sleeve; 331-sealing ring; 332-limiting ring; 340-movable positioning part; 341-movable sleeve; 342-tension spring; 350-mounting seat; 351-culture dish; 360-sampling part; 361-plankton sampling cover; 362-compressed gas sampling cover; 3621-diffuser plate; 3622-static pressure chamber; 363-card interface; 370-power module. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0025] See also Figures 1-6 The utility model provides a technical solution: a new multifunctional microbial sampling device, including a lower shell 100 and an upper shell 200 installed on the lower shell 100, and a sampling structure 300 installed inside the lower shell 100 and the upper shell 200.

[0026] See also Figure 1 and Figure 2 An air hole 110 is opened on one side of the lower shell 100, and a control screen 210 is installed on the upper shell 200.

[0027] See also Figures 1-6The sampling structure 300 includes a sampling base 310, a sampling drive 320, a movable positioning member 340 and a sampling portion 360. The sampling base 310 is installed inside the lower housing 100. One side of the sampling base 310 is connected and fixed with a connecting pipe 311. The other side of the sampling base 310 is installed with a pressure regulating valve 312. A flow sensor 313 is installed on the pressure regulating valve 312. The flow sensor 313 is installed on the inner side of the upper housing 200. The sampling drive 320 is installed on the connecting pipe 311. 11, a fixed sleeve 330 is installed on the sampling base 310, a movable positioning member 340 is installed on the fixed sleeve 330 and the sampling base 310, a mounting seat 350 is installed on the top surface of the fixed sleeve 330, a culture dish 351 is installed on the top surface of the mounting seat 350, and the sampling part 360 is installed on the movable positioning member 340 and the fixed sleeve 330. Here, the lower end of the mounting seat 350 is provided with a through hole for downward air flow, and the upper end is provided with an elastic bracket for installing the culture dish 351.

[0028] The sampling drive 320 includes an automatic valve 321, a fan 322 and an exhaust pipe 323. The automatic valve 321 is installed on one side of the connecting pipe 311, the fan 322 is installed at the end of the connecting pipe 311, and the exhaust pipe 323 is installed at the air hole 110. The exhaust pipe 323 is connected to the air outlet end of the fan 322. Here, the fan 322 can pull the air to flow, so that the air flows downward from the upper end of the sampling part 360. A sealing ring 331 is installed at the annular notch on the fixed sleeve 330, and a limiting ring 332 is provided at the end of the fixed sleeve 330; the sampling part 360 includes a planktonic bacteria sampling cover 361 and a compressed gas sampling cover 362, and the planktonic bacteria sampling cover 361 is sleeved on the upper end of the fixed sleeve 330. The planktonic bacteria sampling cover 361 and the compressed gas sampling cover 362 here can be directly replaced when in use, so as to meet the sampling needs in different situations. The inner surface of the lower end of the planktonic bacteria sampling cover 361 is tightly attached to the surface of the sealing ring 331, and the lower end of the compressed gas sampling cover 362 is provided with a card interface 363, which is carded on the movable sleeve 341, and is fitted with the inner surface of the planktonic bacteria sampling cover 361 through the sealing ring 331, so that sealing can be conveniently performed.

[0029] The movable positioning member 340 includes a movable sleeve 341 and a tension spring 342. The movable sleeve 341 is sleeved on the outer surface of the fixed sleeve 330, and the tension spring 342 is hooked at the through-holes of the sampling base 310 and the movable sleeve 341. The elastic tension of the tension spring 342 can be used to pull the movable sleeve 341 to rotate, so that the card interface 363 on the compressed gas sampling cover 362 can be snapped onto the movable sleeve 341 for installation. An air inlet pipe is formed on the top surface of the compressed gas sampling cover 362, and a diffuser plate 3621 is installed inside the compressed gas sampling cover 362. A static pressure chamber 3622 is formed between the diffuser plate 3621 and the compressed gas sampling cover 362. The diffuser plate 3621 is provided with through-holes for evenly dispersing the airflow, thereby facilitating more even retention of airborne bacteria on the culture medium. A power supply module 370 is also installed inside the lower housing 100. The power supply module 370 can provide power to the control panel 210 and the fan 322, and also provide power to the electrical components inside them.

[0030] Specifically, the working principle of this new multifunctional microbial sampling equipment is as follows: when planktonic bacteria sampling is required, the planktonic bacteria sampling cover 361 is put on the upper end of the fixed cover 330 and sealed tightly with the sealing ring 331. At this time, the automatic valve 321 is opened, and the fan 322 is used to run and extract air from the environment. The air flows downward through the planktonic bacteria sampling cover 361 and hits the culture dish 351. Then the air flows downward through the through hole at the lower end of the mounting seat 350. In this way, the microorganisms are retained by the culture medium on the culture dish 351, and the air is discharged to the outside through the sampling base 310, the automatic valve 321, and the fan 322. Sampling is stopped after the amount of air is collected on the culture dish 351.

[0031] When compressed gas sampling is required, the floating bacteria sampling cover 361 is removed from the fixed cover 330, and then the compressed gas sampling cover 362 is pressed downward. At this time, the bottom of the compressed gas sampling cover 362 squeezes the movable cover 341 and causes the tension spring 342 to elastically stretch. When the card interface 363 is connected to the movable cover 341, the automatic valve 321 is closed, and the upper end of the compressed gas sampling cover 362 is connected to the external compression tube. The compressed gas flows downward through the compressed gas sampling cover 362 and hits the culture dish 351. The microorganisms are trapped by the culture medium on the culture dish 351. The gas is then discharged to the outside through the sampling base 310, the pressure regulating valve 312, the flow sensor 313 and the air hole 110 in turn. When the flow sensor 313 detects the amount of collected gas, the sampling is stopped. In this way, the amount of equipment carried and the trouble of changing equipment can be reduced during use, which is conducive to improving the convenience of use and making it more convenient to deal with different sampling needs.

[0032] It should be noted that the specific models and specifications of the control panel 210, fan 322 and power module 370 need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0033] The power supply and principles of the control panel 210, the fan 322 and the power module 370 are clear to those skilled in the art and will not be described in detail here.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A new multifunctional microbial sampling device, comprising a lower shell (100) and an upper shell (200) mounted on the lower shell (100), and a sampling structure (300) mounted inside the lower shell (100) and the upper shell (200), characterized in that: An air hole (110) is provided on one side of the lower housing (100), and a control panel (210) is installed on the upper housing (200); The sampling structure (300) comprises a sampling base (310), a sampling drive member (320), a movable positioning member (340) and a sampling portion (360); the sampling base (310) is installed inside the lower housing (100); one side of the sampling base (310) is connected and fixedly connected to a connecting pipe (311); the other side of the sampling base (310) is installed with a pressure regulating valve (312); a flow sensor (313) is installed on the pressure regulating valve (312); and the flow sensor (313) is installed on the upper housing (20 0), the sampling drive member (320) is mounted on the connecting tube (311), a fixing sleeve (330) is mounted on the sampling base (310), the movable positioning member (340) is mounted on the fixing sleeve (330) and the sampling base (310), a mounting seat (350) is mounted on the top surface of the fixing sleeve (330), a culture dish (351) is mounted on the top surface of the mounting seat (350), and the sampling portion (360) is mounted on the movable positioning member (340) and the fixing sleeve (330).

2. A new multifunctional microbial sampling device according to claim 1, characterized in that: The sampling drive member (320) comprises an automatic valve (321), a fan (322) and an exhaust pipe (323); the automatic valve (321) is installed on one side of the connecting pipe (311); the fan (322) is installed at the end of the connecting pipe (311); the exhaust pipe (323) is installed at the air hole (110); and the exhaust pipe (323) is connected to an air outlet end of the fan (322).

3. A new multifunctional microbial sampling device according to claim 1, characterized in that: A sealing ring (331) is installed at the annular notch on the fixing sleeve (330), and a limiting ring (332) is provided at the end of the fixing sleeve (330).

4. A new multifunctional microbial sampling device according to claim 3, characterized in that: The movable positioning member (340) comprises a movable sleeve (341) and a tension spring (342); the movable sleeve (341) is sleeved on the outer surface of the fixed sleeve (330); and the tension spring (342) is hung at the through holes of the sampling base (310) and the movable sleeve (341).

5. A new multifunctional microbial sampling device according to claim 4, characterized in that: The sampling portion (360) comprises a planktonic bacteria sampling cover (361) and a compressed gas sampling cover (362); the planktonic bacteria sampling cover (361) is sleeved on the upper end of the fixed cover (330); the inner surface of the lower end of the planktonic bacteria sampling cover (361) is in close contact with the surface of the sealing ring (331); and a card interface (363) is provided at the lower end of the compressed gas sampling cover (362); the card interface (363) is snapped onto the movable cover (341).

6. A new multifunctional microbial sampling device according to claim 5, characterized in that: An air inlet pipe is formed on the top surface of the compressed gas sampling cover (362), a diffuser plate (3621) is installed inside the compressed gas sampling cover (362), and a static pressure chamber (3622) is formed between the diffuser plate (3621) and the compressed gas sampling cover (362).

7. A new multifunctional microbial sampling device according to claim 1, characterized in that: A power module (370) is also installed inside the lower housing (100).

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