Microorganism sampler with multiple layers of filter membranes

Abstract

The utility model relates to the field of microbial samplers, in particular to a microbial sampler with multiple layers of filter membranes. The technical problem is that when an existing sampler is installed, a tripod is mostly installed at the lower end of the sampler, and normal use of the whole sampler is often affected when the installation position is difficult to ensure that an installation surface is flat. According to the technical scheme, the microbial sampler with the multilayer filter membranes comprises a base assembly, a bracket assembly, a sampling assembly, a connecting assembly and a sealing cover assembly, a support assembly is installed at the lower end of the base assembly. A sampling assembly is arranged at the upper end of the base assembly. According to the utility model, a special supporting structure is arranged to replace the original tripod for supporting, so that the problem that the normal use of the whole sampler is often influenced when the installation position is difficult to ensure that the installation surface is flat because the tripod is mostly arranged at the lower end of the sampler when the existing sampler is installed is solved; therefore, the use convenience of the whole microorganism sampler can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of microbial samplers, in particular to a microbial sampler with a multi-layer filter membrane. Background Art

[0002] The six-stage air microbial sampler is a six-stage sieve hole impact air microbial sampler. It is a dual-function stepped multi-stage impact sampler. It can be widely used in the monitoring of sanitary and epidemic prevention, biological cleanliness, pharmaceutical, fermentation industry and other environments, as well as related research and teaching departments for air microbial sampling research. The air microbial sampler (six-stage) provides a basis for evaluating the hazards of air environment microbial pollution and its prevention and control measures. During the use of existing microbial samplers, most of them support the entire sampler by setting a tripod at the lower end of the sampler. The setting of the tripod often needs to be based on a stable ground. When encountering uneven ground, it is often difficult to keep the installation of the entire sampler stable, which can easily affect the normal use of the sampler. Utility Model Content

[0003] In order to overcome the problem that the existing samplers are usually installed with a tripod at the lower end of the sampler during installation, and the installation position is difficult to ensure the flatness of the installation surface, which often affects the normal use of the entire sampler.

[0004] The technical solution of the utility model is: a multi-layer filter membrane microbial sampler, comprising a base assembly, a bracket assembly, a sampling assembly, a connecting assembly and a capping assembly; the bracket assembly is installed at the lower end of the base assembly; the sampling assembly is arranged at the upper end of the base assembly; the connecting assembly is arranged on the outer side of the sampling assembly; and the capping assembly is arranged at the upper end of the sampling assembly.

[0005] Preferably, the positioning support of the microbial sampler is achieved through the setting of the bracket assembly, the sampling of particles in the air is achieved through the setting of the sampling assembly, a plurality of sampling assemblies are spliced ​​into one through the setting of the connecting assembly, and the top sealing of the sampling assembly is achieved through the setting of the covering assembly.

[0006] Preferably, the base assembly includes a fixed base, a first connecting tube, a membrane frame, a filter membrane, a second connecting tube, a fixing ring, a connecting plate and a positioning column; the first connecting tube is fixedly connected to one side of the fixed base; a membrane frame is arranged on the inner side of the fixed base; and a plurality of filter membranes are arranged on the inner side of the membrane frame.

[0007] Preferably, a second connecting tube is provided on one side of the filter membrane; and the filter apertures on the multiple filter membranes decrease from the first connecting tube to the second connecting tube casting; a fixing ring is provided at the upper end of the membrane frame; a connecting plate is provided on the outer side of the fixed base; and a positioning column is provided on the connecting plate.

[0008] Preferably, the bracket assembly includes a fixed bracket, a connecting frame, a fixed shaft, an air cushion ball and a positioning rod; a plurality of fixed brackets are installed at the lower end of the fixed base; a connecting frame is fixedly connected to the fixed bracket; a fixed shaft is fixedly connected to the connecting frame; an air cushion ball is rotatably connected to the outer side of the fixed shaft; and a positioning rod is fixedly connected to the lower end surface of the fixed base.

[0009] Preferably, the sampling assembly includes a sampler, a fixing plate, a positioning ring and a fixed sieve ring; a plurality of samplers are arranged on the upper end of the fixed base; a plurality of fixing plates are fixedly connected to the outer side of the sampler; a positioning ring is arranged at the lower end of the fixing plate; a fixed sieve ring is fixedly connected to the inner side of the sampler; and the sieve holes on the fixed sieve ring gradually expand from bottom to top.

[0010] Preferably, the connecting assembly includes a connecting head, a positioning rod and a return spring; the return spring is fixedly connected to the outer side of the positioning column; the positioning rod is fixedly connected to the return spring; and the connecting head is fixedly connected to the outer side of the positioning rod.

[0011] Preferably, the sealing cover assembly includes a sealing cover, a connecting column, a mounting ring and a sealing head; a connecting column is provided on the inner side of the connecting head; the sealing cover is fixedly connected to the lower end of the connecting column; the mounting ring is fixedly connected to the sealing cover; and the sealing head is provided at the upper end of the mounting ring.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up a special support structure to replace the original tripod support, the problem that the tripod is mostly installed at the lower end of the sampler during installation, and the installation position is difficult to ensure the flatness of the installation surface, which often affects the normal use of the entire sampler, can be greatly improved. The convenience of use of the entire microbial sampler;

[0014] 2. By installing a rotatable air cushion ball on the fixed bracket, once the entire microbial sampler is deflected, the rebound force generated by squeezing the air cushion ball can be used to force the deflection to reset, thereby improving the safety of the entire microbial sampler to a certain extent, and further greatly improving the working efficiency of the entire microbial sampler;

[0015] 3. By arranging multiple filter membranes inside the membrane rack, part of the air sucked into the sampler can be filtered and purified multiple times, so that the air discharged from the sampler can be fully purified, thereby improving the comfort of the entire microbial sampler to a certain extent and further improving the convenience of use of the microbial sampler. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a first three-dimensional structural schematic diagram of the microbial sampler of the utility model;

[0017] Figure 2 What is shown is a second three-dimensional structure schematic diagram of the microbial sampler of the utility model;

[0018] Figure 3 What is shown is a schematic diagram of the three-dimensional structure of the sampling component of the microbial sampler of the utility model;

[0019] Figure 4 What is shown is a schematic diagram of the three-dimensional structure of the base assembly of the microbial sampler of the present utility model.

[0020] Explanation of the accompanying drawings: 1. Base assembly; 2. Bracket assembly; 3. Sampling assembly; 4. Connecting assembly; 5. Capping assembly; 101. Fixed base; 102. First connecting tube; 103. Film holder; 104. Filter membrane; 105. Second connecting tube; 106. Fixed ring; 107. Connecting plate; 108. Positioning column; 201. Fixed bracket; 202. Connecting frame; 203. Fixed shaft; 204. Air cushion ball; 205. Positioning rod; 301. Sampler; 302. Fixed plate; 303. Positioning ring; 304. Fixed sieve ring; 401. Connecting head; 402. Positioning rod; 403. Return spring; 501. Sealing cover; 502. Connecting column; 503. Mounting ring; 504. Sealing head. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1-2 The utility model provides an embodiment: a multi-layer filter membrane microbial sampler, comprising a base assembly 1, a bracket assembly 2, a sampling assembly 3, a connecting assembly 4 and a capping assembly 5; the lower end of the base assembly 1 is installed with the bracket assembly 2; the upper end of the base assembly 1 is provided with the sampling assembly 3; the outer side of the sampling assembly 3 is provided with the connecting assembly 4; the upper end of the sampling assembly 3 is provided with the capping assembly 5, the bracket assembly 2 comprises a fixed bracket 201, a connecting frame 202, a fixed shaft 203, an air cushion ball 204 and a positioning rod 205; the fixed base 101 A plurality of fixed brackets 201 are installed at the lower end; a connecting bracket 202 is fixedly connected to the fixed bracket 201; a fixed shaft 203 is fixedly connected to the connecting bracket 202; an air cushion ball 204 is rotatably connected to the outer side of the fixed shaft 203; a positioning rod 205 is fixedly connected to the lower end surface of the fixed base 101, and the connecting assembly 4 includes a connecting head 401, a positioning rod 402 and a reset spring 403; a reset spring 403 is fixedly connected to the outer side of the positioning column 108; a positioning rod 402 is fixedly connected to the reset spring 403; a connecting head 401 is fixedly connected to the outer side of the positioning rod 402.

[0023] See also Figure 3-4In this embodiment, the base assembly 1 includes a fixed base 101, a first connecting tube 102, a film frame 103, a filter membrane 104, a second connecting tube 105, a fixing ring 106, a connecting piece 107 and a positioning column 108; the first connecting tube 102 is fixedly connected to one side of the fixed base 101; the film frame 103 is arranged on the inner side of the fixed base 101; a plurality of filter membranes 104 are arranged on the inner side of the film frame 103, and a second connecting tube 105 is arranged on one side of the filter membrane 104; and the filter apertures on the plurality of filter membranes 104 decrease from the first connecting tube 102 to the second connecting tube 105; a fixing ring 106 is arranged on the upper end of the film frame 103; a connecting piece 107 is arranged on the outer side of the fixed base 101; a positioning column is arranged on the connecting piece 107 108, the sampling assembly 3 includes a sampler 301, a fixing plate 302, a positioning ring 303 and a fixed sieve ring 304; a plurality of samplers 301 are arranged on the upper end of the fixed base 101; a plurality of fixing plates 302 are fixedly connected to the outer side of the sampler 301; a positioning ring 303 is arranged at the lower end of the fixing plate 302; a fixed sieve ring 304 is fixedly connected to the inner side of the sampler 301; and the sieve holes on the fixed sieve ring 304 gradually expand from bottom to top, the sealing assembly 5 includes a sealing cover 501, a connecting column 502, a mounting ring 503 and a sealing head 504; a connecting column 502 is arranged on the inner side of the connecting head 401; a sealing cover 501 is fixedly connected to the lower end of the connecting column 502; a mounting ring 503 is fixedly connected to the sealing cover 501; a sealing head 504 is arranged at the upper end of the mounting ring 503.

[0024] During operation, by separating the connector 401 and the connecting column 502, the user can place the culture dish on the fixed sieve ring 304 inside different samplers 301, and repeat the above operation in reverse so that the connector 401 can be mounted on the connecting column 502. By installing two air pumps on the first connecting tube 102 and the second connecting tube 105 respectively, the microbial sampler can be used. The user turns on the air pump to form a negative pressure environment inside the sampler, so that the particles in the air can remain on the culture dish under the action of inertia, thereby realizing the use of the sampler.

[0025] Through the above steps, a special support structure is set to replace the original tripod support, so as to solve the problem that when the existing sampler is installed, the tripod is mostly installed at the lower end of the sampler, and when the installation position is difficult to ensure the flatness of the installation surface, it often affects the normal use of the entire sampler. The convenience of use of the entire microbial sampler can be greatly improved. At the same time, the positioning support of the microbial sampler can be achieved through the setting of the bracket component 2, the sampling of particles in the air can be achieved through the setting of the sampling component 3, and the multiple sampling components 3 can be spliced ​​into one through the setting of the connecting component 4. The top sealing of the sampling component 3 is achieved through the setting of the capping component 5.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A multi-layer filter membrane microbial sampler, comprising a base assembly (1); characterized in that: It also comprises a support assembly (2), a sampling assembly (3), a connection assembly (4) and a cover assembly (5); the support assembly (2) is mounted on the lower end of the base assembly (1); the sampling assembly (3) is arranged on the upper end of the base assembly (1); the connection assembly (4) is arranged on the outer side of the sampling assembly (3); and the cover assembly (5) is arranged on the upper end of the sampling assembly (3).

2. The multi-layer filter membrane microbial sampler according to claim 1, characterized in that: The base assembly (1) comprises a fixed base (101), a first connecting tube (102), a membrane-connecting frame (103), a filter membrane (104), a second connecting tube (105), a fixing ring (106), a connecting piece (107) and a positioning column (108); the first connecting tube (102) is fixedly connected to one side of the fixed base (101); the membrane-connecting frame (103) is arranged on the inner side of the fixed base (101); and a plurality of filter membranes (104) are arranged on the inner side of the membrane-connecting frame (103).

3. The multi-layer filter membrane microbial sampler according to claim 2, characterized in that: A second connecting tube (105) is provided on one side of the filter membrane (104); and the filter apertures on the plurality of filter membranes (104) decrease from the first connecting tube (102) to the second connecting tube (105) casting; a fixing ring (106) is provided at the upper end of the membrane connecting frame (103); a connecting plate (107) is provided on the outer side of the fixed base (101); and a positioning column (108) is provided on the connecting plate (107).

4. The multi-layer filter membrane microbial sampler according to claim 2, characterized in that: The support assembly (2) comprises a fixed support (201), a connecting frame (202), a fixed shaft (203), an air cushion ball (204) and a positioning rod (205); a plurality of fixed supports (201) are mounted on the lower end of the fixed base (101); the connecting frame (202) is fixedly connected to the fixed support (201); the fixed shaft (203) is fixedly connected to the connecting frame (202); the air cushion ball (204) is rotatably connected to the outer side of the fixed shaft (203); and the positioning rod (205) is fixedly connected to the lower end surface of the fixed base (101).

5. The multi-layer filter membrane microbial sampler according to claim 2, characterized in that: The sampling assembly (3) comprises a sampler (301), a fixing plate (302), a positioning ring (303) and a fixed sieve ring (304); a plurality of samplers (301) are arranged at the upper end of the fixed base (101); a plurality of fixing plates (302) are fixedly connected to the outer side of the sampler (301); a positioning ring (303) is arranged at the lower end of the fixing plate (302); a fixed sieve ring (304) is fixedly connected to the inner side of the sampler (301); and the sieve holes on the fixed sieve ring (304) gradually expand from bottom to top.

6. The multi-layer filter membrane microbial sampler according to claim 3, characterized in that: The connection assembly (4) comprises a connection head (401), a positioning rod (402) and a return spring (403); the return spring (403) is fixedly connected to the outer side of the positioning column (108); the positioning rod (402) is fixedly connected to the return spring (403); and the connection head (401) is fixedly connected to the outer side of the positioning rod (402).

7. The multi-layer filter membrane microbial sampler according to claim 6, characterized in that: The sealing cover assembly (5) comprises a sealing cover (501), a connecting column (502), a mounting ring (503) and a sealing head (504); a connecting column (502) is arranged on the inner side of the connecting head (401); the sealing cover (501) is fixedly connected to the lower end of the connecting column (502); the mounting ring (503) is fixedly connected to the sealing cover (501); and the sealing head (504) is arranged on the upper end of the mounting ring (503).

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