CN219518394U - A suction filter device for bacterial detection - Google Patents

Abstract

The utility model discloses a suction filter device for bacteria detection, relates to the technical field of bacteria detection, and specifically comprises a bottom plate, the tops of both ends of the bottom plate are fixedly connected with side plates, and the liquid collecting pipes are respectively connected with the side plates at both ends , filter cups are arranged intermittently and equidistantly on the outer side of the top of the liquid collection pipe, the outer side of the bottom of the filter cup is fixedly connected with a limit seat, the outer side of the limit seat is provided with a rotating ring, and the inner wall of the rotating ring is slidingly connected with the limit seat The bottom of the inner cavity of the filter cup is provided with a filter membrane seat, the inside of the filter membrane seat is equipped with a filter membrane, the top of the filter cup is provided with an annular seat, and the top of the filter membrane seat is provided with no less than three connections Rod, the bottom end of the connecting rod is connected with the membrane seat, and the top end of the connecting rod is connected with the ring seat. When the utility model is in use, it is convenient to replace and maintain the filter membrane structure, and at the same time, the filter cup assembly can be freely disassembled for easy cleaning.

Description

A suction filter device for bacterial detection

technical field

The utility model relates to the technical field of bacteria detection, in particular to a suction filter device for bacteria detection.

Background technique

Suction filtration, also known as decompression filtration and vacuum filtration, refers to the method of using an air pump to reduce the pressure in the filtration bottle to achieve the purpose of solid-liquid separation. This method is often used in bacterial detection. Send it into a funnel with a filter membrane, and then reduce the pressure in the funnel to separate water and bacteria. It is inconvenient to take out and install the filter membrane structure of the existing suction filtration device. It is necessary to disassemble the filter cup as a whole, and then go deep into the filter cup with tweezers to clamp out the filter membrane. The steps are cumbersome and inconvenient to operate. In view of the above problems, we propose a suction filter device for bacterial detection.

Utility model content

In order to solve the above deficiencies in the prior art, the utility model proposes a suction filter device for bacteria detection.

In order to achieve the above purpose, the utility model is achieved through the following technical solutions: a suction filter device for bacteria detection, including a bottom plate, the tops of both ends of the bottom plate are fixedly connected with side plates, and a liquid collecting device is arranged between the side plates The liquid collecting pipe is respectively connected to the side plates at both ends, and filter cups are arranged at intervals at equal intervals on the outside of the top of the liquid collecting pipe, and the outside of the bottom of the filter cup is fixedly connected with a limit seat, and the outside of the limit seat is provided with There is a rotating ring, and the inner wall of the rotating ring is slidingly connected with the limit seat;

The bottom of the inner cavity of the filter cup is provided with a filter membrane seat, the filter membrane seat is installed with a filter membrane, the top of the filter cup is provided with an annular seat, and the top of the filter membrane seat is provided with no less than three connecting rods , the bottom end of the connecting rod is connected with the membrane seat, and the top end of the connecting rod is connected with the annular seat.

Optionally, a suction filter bottle is provided under the liquid collection pipe, the suction filter bottle is installed on the bottom plate, and a liquid inlet pipe is fixedly installed on the top of the suction filter bottle, and the bottom end of the liquid inlet pipe runs through to the suction filter. Inside the bottle, the top of the liquid inlet pipe is connected with the liquid collecting pipe.

Optionally, a negative pressure pump is provided on one side of the suction filter bottle, the bottom of the negative pressure pump is connected to the bottom plate, the air inlet of the negative pressure pump is connected to an air outlet pipe, and one end of the air outlet pipe is connected to the suction filter. bottle connected.

Optionally, a corresponding positioning cover is provided on the top of the cavity of the filter membrane seat.

Optionally, an internal thread interface is provided at the bottom of the rotating ring, a liquid outlet pipe is provided below the internal thread interface, the bottom end of the liquid outlet pipe is connected to the liquid collection pipe, and the top end of the liquid outlet pipe is provided with a An externally threaded joint corresponding to the internally threaded interface, the internally threaded interface being located inside the externally threaded joint.

Optionally, a regulating valve is provided on the liquid outlet pipe.

Compared with the prior art, when the utility model is in use, the negative pressure pump is used to form a negative pressure environment inside the suction filter bottle and the liquid collection pipe, so that the detection liquid inside the filter cup is input into the suction filter bottle through the filter membrane, and after completion After the suction and filtration work, the filter membrane holder can be pulled out from the filter cup by holding the ring holder, and then the filter membrane can be taken out and put into a container for bacterial detection through sterilized tweezers, so as to facilitate the replacement and maintenance of the filter membrane structure, and at the same time, the filter membrane can be freely removed. The cup assembly is detached from the manifold for easy cleaning.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the concrete structure schematic diagram of filter cup, outlet pipe and external thread joint of the present invention;

Fig. 3 is a schematic diagram of the internal structure of the filter cup of the present invention.

In the figure: 1, bottom plate; 2, side plate; 3, liquid collection pipe; 4, filter cup; 5, filter membrane seat; 6, positioning cover; 7, filter membrane; 8, connecting rod; 9, ring seat; 10 , liquid outlet pipe; 11, external thread joint; 12, rotating ring; 13, limit seat; 14, internal thread interface; 15, regulating valve; 16, suction filter bottle; 17, liquid inlet pipe; 18, negative pressure pump 19, outlet pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying 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 them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 to Fig. 3, the utility model provides a kind of technical solution: a kind of suction filter device for bacterial detection, comprises base plate 1, and the top of base plate 1 both ends is fixedly connected with side plate 2, and side plate 2 is provided with The liquid collecting pipe 3, the liquid collecting pipe 3 is respectively connected with the side plates 2 at both ends, the filter cup 4 is arranged intermittently and equidistantly on the outer side of the liquid collecting pipe 3, and the outer side of the bottom of the filter cup 4 is fixedly connected with the limit seat 13, the limit seat 13 There is a rotating ring 12 on the outside, and the inner wall of the rotating ring 12 is slidingly connected with the limit seat 13, and the filter cup 4 is used to store the detection liquid, and the filtered detection liquid will be input into the liquid collection pipe 3 from the filter cup 4;

The bottom of the inner chamber of the filter cup 4 is provided with a filter membrane seat 5, the inside of which is equipped with a filter membrane 7, the top of the filter cup 4 is provided with an annular seat 9, and the top of the filter membrane seat 5 is provided with no less than three connecting rods 8 , the bottom end of the connecting rod 8 is connected with the membrane seat 5, and the top end of the connecting rod 8 is connected with the annular seat 9,

As shown in Figure 3, when the detection liquid inside the filter cup 4 is suction-filtered, the bacteria will be intercepted by the filter membrane 7. At this time, the filter membrane seat 5 can be drawn out from the filter cup 4 by using the ring seat 9 and the connecting rod 8. The filter membrane 7 is then conveniently taken out by tweezers for bacterial detection.

Furthermore, a suction filter bottle 16 is arranged below the liquid collection pipe 3, and the suction filter bottle 16 is installed on the bottom plate 1, and a liquid inlet pipe 17 is fixedly installed on the top of the suction filter bottle 16, and the bottom end of the liquid inlet pipe 17 runs through to the suction filter bottle 16 inside, the top of the inlet pipe 17 is connected with the liquid collection pipe 3, and the filtrate of a plurality of filter cups 4 will be collected in the liquid collection pipe 3, and the suction filtrate is then input into the suction filter bottle 16 through the liquid inlet pipe 17 for collection.

As shown in Figure 1, a negative pressure pump 18 is provided on one side of the suction filter bottle 16, and the bottom of the negative pressure pump 18 is connected with the base plate 1. The filter bottles 16 are connected to each other, and a negative pressure environment is formed inside the suction filter bottle 16 and the liquid collection pipe 3 by using a negative pressure pump 18 and an air outlet pipe 19, so that the detection liquid in the filter cup 4 is input into the suction filter bottle 16 through the filter membrane 7, This completes the suction filtration work.

Further speaking, the liquid outlet pipe 10 is provided with a regulating valve 15 , and by setting the regulating valve 15 , the on-off of the liquid inside the liquid outlet pipe 10 is controlled.

As shown in Figure 3, the top of the cavity of the filter membrane seat 5 is provided with a corresponding positioning cover 6. After the filter membrane 7 is installed in the filter membrane seat 5, the filter membrane 7 can be fixed by the positioning cover 6, and then the filter membrane Seat 5 assembly is sent in the filter cup 4, can carry out suction filtration work this moment.

In the actual use process, the bottom of the rotating ring 12 is provided with an internal thread interface 14, and the bottom of the internal thread interface 14 is provided with a liquid outlet pipe 10. The external threaded joint 11 corresponding to the internal threaded interface 14, the internal threaded interface 14 is located inside the external threaded joint 11, when the filter cup 4 assembly needs to be cleaned, the internal threaded interface 14 is driven by the rotating ring 12 to rotate, so that it is in line with the outlet The external thread joint 11 at the top of the liquid pipe 10 is separated, and the disassembly of the filter cup 4 assembly is completed at this time, which is convenient for cleaning and maintenance.

To sum up, when using the suction filter device for bacteria detection, the staff first pours the detection liquid into the filter cup 4, then opens the regulating valve 15 on the corresponding liquid outlet pipe 10, and starts the negative pressure pump 18 to pump A negative pressure environment is formed inside the filter bottle 16 and the liquid collecting pipe 3, so that the detection liquid inside the filter cup 4 passes through the filter membrane 7 and is input into the filter bottle 16. Take it out from the filter cup 4, and then take out the filter membrane 7 through sterilized tweezers and put it into a container for bacterial detection.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific Therefore, it cannot be construed as a limitation on the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance. In addition, Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a bacterial detection is with suction filtration device, includes bottom plate (1), its characterized in that: the top of the two ends of the bottom plate (1) is fixedly connected with side plates (2), a liquid collecting pipe (3) is arranged between the side plates (2), the liquid collecting pipes (3) are respectively connected with the side plates (2) at the two ends, filter cups (4) are intermittently arranged at equal intervals on the outer sides of the tops of the liquid collecting pipes (3), a limiting seat (13) is fixedly connected on the outer sides of the bottoms of the filter cups (4), a rotating ring (12) is arranged on the outer sides of the limiting seat (13), and the inner wall of the rotating ring (12) is in sliding connection with the limiting seat (13);

filter bowl (4) inner chamber bottom is equipped with filter membrane seat (5), filter membrane seat (5) internally mounted has filtration membrane (7), filter bowl (4) top is equipped with annular seat (9), filter membrane seat (5) top is equipped with connecting rod (8) that are not less than three, connecting rod (8) bottom is connected with filter membrane seat (5), connecting rod (8) top is connected with annular seat (9).

2. The suction filtration device for bacteria detection according to claim 1, wherein: the liquid collecting pipe is characterized in that a suction bottle (16) is arranged below the liquid collecting pipe (3), the suction bottle (16) is arranged on the bottom plate (1), a liquid inlet pipe (17) is fixedly arranged at the top of the suction bottle (16), the bottom end of the liquid inlet pipe (17) penetrates into the suction bottle (16), and the top end of the liquid inlet pipe (17) is connected with the liquid collecting pipe (3).

3. The suction filtration device for bacteria detection according to claim 2, wherein: negative pressure pump (18) are arranged on one side of suction bottle (16), the bottom of negative pressure pump (18) is connected with bottom plate (1), the air inlet of negative pressure pump (18) is connected with outlet duct (19), outlet duct (19) one end is connected with suction bottle (16).

4. The suction filtration device for bacteria detection according to claim 1, wherein: the top of the inner cavity of the filter membrane seat (5) is provided with a positioning cover (6) corresponding to the inner cavity.

5. The suction filtration device for bacteria detection according to claim 1, wherein: the bottom of the rotating ring (12) is provided with an internal thread interface (14), a liquid outlet pipe (10) is arranged below the internal thread interface (14), the bottom end of the liquid outlet pipe (10) is connected with the liquid collecting pipe (3), the top end of the liquid outlet pipe (10) is provided with an external thread joint (11) corresponding to the internal thread interface (14), and the internal thread interface (14) is positioned inside the external thread joint (11).

6. The suction filtration device for bacteria detection according to claim 5, wherein: the liquid outlet pipe (10) is provided with an adjusting valve (15).