Filtering device of breeding cage for experimental organisms

Abstract

The utility model relates to the technical field of filters, in particular to a feeding cage filtering device for experimental organisms, which comprises a cabinet body and a plurality of drawers slidably mounted on the cabinet body, each drawer is provided with a plurality of mounting holes, and filters are screwed in the mounting holes. The filter comprises a spiral end cover, a filter barrel and filter cotton inserted into the filter barrel, the spiral end cover is connected to one end of the filter barrel in a threaded mode, a plurality of through holes are evenly formed in the filter barrel, and the filter cotton is formed by winding a single layer of filter cotton. By the adoption of the technical scheme, the multiple filtering devices arranged on the drawer and the filtering cotton arranged in the filtering devices can conduct multi-layer filtering and purifying on gas in the drawer and then exchange with outside gas, the gas purifying effect is guaranteed, and meanwhile the filtering efficiency is not affected due to the fact that the filtering cotton is of a winding structure.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a breeding cage filtering device for experimental organisms. Background Art

[0002] The gas filters currently on the market have complex structures, unsatisfactory filtering effects, and low air permeability. For example, the patent application document with application number "200720074317.5" and titled "A Gas Filter Element" has a filter element arranged in the housing of the gas filter, including a filter unit, upper and lower end covers arranged at the top and bottom of the filter unit and having a central opening, and a sealing ring sleeved on the central opening for sealing the filter element and the housing. The filter unit includes inner and outer cylindrical cylinders that are coaxial and arranged inside and outside, and a filter layer arranged between the inner and outer cylindrical cylinders for adsorbing solid particles. The inner and outer cylindrical cylinders are both provided with a plurality of mesh holes. The filter unit also includes a drainage layer sleeved on the outside of the outer cylindrical cylinder and used to guide the droplets to flow to the bottom of the filter. The filter layer includes two fiber filter layers and a fiber layer sandwiched between the two surface filter layers. The entire device is not only complex in structure, but also has a low filtering efficiency. The purification level is SPF (no special pathogens), and the volume is large and the applicability is not strong. Meanwhile, in the prior art, a ciliary core air reducer is also arranged in the housing, which not only increases the volume of the entire device but also increases the cost. Utility Model Content

[0003] The utility model aims to provide a breeding cage filtering device for experimental organisms to solve the problems existing in the above-mentioned prior art.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A breeding cage filtering device for experimental organisms comprises a cabinet body and a plurality of drawers slidably mounted on the cabinet body, the drawers are provided with a plurality of mounting holes, filters are screwed in the mounting holes, the filters comprise a spiral end cap, a filter barrel and filter cotton inserted in the filter barrel, the spiral end cap is screwed on one end of the filter barrel, a plurality of through holes are evenly arranged on the filter barrel, and the filter cotton is composed of a single layer of filter cotton wound.

[0006] By adopting the above technical solution, the gas inside the drawer can be filtered and purified through multiple layers through multiple filters arranged on the drawer and filter cotton arranged inside the filter, and then exchanged with the external gas. While ensuring the gas purification effect, the filtering efficiency is not affected because the filter cotton is a winding structure.

[0007] In a further embodiment, a baffle is disposed at a middle position inside the drawer, and the plurality of filters are symmetrically disposed on both sides of the baffle.

[0008] In a further embodiment, a through hole is provided at the center position of the spiral end cap, the spiral end cap is screwed into the mounting hole, a first activated carbon adsorption device is bonded to the inner wall of the spiral end cap, a truncated cone-shaped protrusion is provided on the side of the filter barrel away from the spiral end cap and the drawer, a plurality of rectangular protrusions are provided on the inner bottom of the drawer, and elastic paddles are provided on the rectangular protrusions, one end of the elastic paddles is pressed against the outer wall of the filter.

[0009] In a further embodiment, a receiving groove is provided on the elastic paddle, a return spring is inserted in the receiving groove, one end of the return spring is connected to the elastic paddle, and the other end of the return spring is fixedly connected to the rectangular protrusion.

[0010] In a further embodiment, a second activated carbon filter device for sealing is provided at one end of the filter barrel away from the spiral end cap, the first activated carbon adsorption device and the second activated carbon filter device have the same structure, and both the first activated carbon adsorption device and the second activated carbon filter device have a multi-layer activated carbon bonded and bundled combination.

[0011] By adopting the above technical solution, the inlet and outlet of the gas can be further blocked, so that the gas must pass through the filter cotton before exchange can occur.

[0012] In a further embodiment, a limiting slide rail and a limiting protrusion are provided on the outer side of the drawer, a polymer antibacterial layer is provided on the outer side of the drawer, and a sound insulation layer is provided on the bottom of the drawer.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. Through the multiple filters set on the drawer and the filter cotton set inside the filter, the gas inside the drawer can be filtered and purified through multiple layers and then exchanged with the external gas. While ensuring the gas purification effect, the filter cotton has a winding structure and does not affect the filtering efficiency. The miniaturization of the filter is successfully realized and can be widely used in various biological laboratory breeding scenarios;

[0015] 2. A first activated carbon adsorption device is bonded to the inner wall of the spiral end cap, and a second activated carbon filter device for sealing is arranged at one end of the filter barrel away from the spiral end cap, which can further block the inlet and outlet of the gas so that the gas must pass through the filter cotton to produce the exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the filter of the utility model.

[0018] In the figure, 1, cabinet; 2, drawer; 3, filter; 31, spiral end cover; 32, filter barrel; 33, filter cotton; 4, baffle; 5, elastic pick; 6, return spring. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0021] Embodiment 1:

[0022] like Figure 1-Figure 2As shown, a breeding cage filtering device for experimental organisms comprises a cabinet 1 and a plurality of drawers 2 slidably mounted on the cabinet 1, a limiting slide rail and a limiting protrusion are arranged on the outer side of the drawer 2, a polymer antibacterial layer is arranged on the outer side of the drawer 2, a sound insulation layer is arranged on the bottom of the drawer 2, a plurality of mounting holes are arranged on the drawer 2, filters 3 are screwed in the mounting holes, the filter 3 comprises a spiral end cap 31, a filter barrel 32 and filter cotton 33 inserted in the filter barrel 32, the spiral end cap 31 is screwed on one end of the filter barrel 32, a plurality of through holes are evenly arranged on the filter barrel 32, the filter cotton 33 is composed of a single layer of filter cotton 33 wound, a baffle 4 is arranged in the middle position inside the drawer 2, a plurality of filters 3 are symmetrically arranged on both sides of the baffle 4, a through hole is arranged at the center position of the spiral end cap 31, the spiral end cap 31 is screwed In the mounting hole, a first activated carbon adsorption device is bonded to the inner wall of the spiral end cover 31, and a truncated cone-shaped protrusion is provided on the side of the filter barrel 32 away from the spiral end cover and away from the drawer 2. A plurality of rectangular protrusions are provided on the inner bottom of the drawer 2, and elastic paddles 5 are provided on the rectangular protrusions. One end of the elastic paddle 5 is pressed against the outer wall of the filter 3, and a receiving groove is provided on the elastic paddle 5. A return spring 6 is inserted in the receiving groove, and one end of the return spring 6 is connected to the elastic paddle 5, and the other end of the return spring 6 is fixedly connected to the rectangular protrusion. A second activated carbon filter device for sealing is provided on the end of the filter barrel 32 away from the spiral end cover 31. The structures of the first activated carbon adsorption device and the second activated carbon filter device are consistent, and the first activated carbon adsorption device and the second activated carbon filter device both have a multi-layer activated carbon bonded and bundled combination. By means of multiple filters arranged on the drawer and filter cotton arranged inside the filter, the gas inside the drawer can be purified through multi-layer filtration and then exchanged with the external gas. While ensuring the gas purification effect, the filter cotton has a winding structure and does not affect the filtration efficiency. The miniaturization of the filter is successfully achieved and can be widely used in major biological laboratory breeding scenarios.

[0023] Specific implementation process: When in use, screw the filter 3 into the installation hole of the drawer, and then put the drawer 2 into the cabinet 1. The mouse can be put in when the drawer 2 is halfway into the cabinet 1 to avoid putting it in too early and causing the mouse to escape. The sound insulation layers at the bottom of the drawer 2 can prevent the sound of the mouse's activities from affecting the mice in the other cells.

[0024] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A breeding cage filtering device for experimental organisms, comprising a cabinet (1) and a plurality of drawers (2) slidably mounted on the cabinet (1), characterized in that: The drawer (2) is provided with a plurality of mounting holes, a filter (3) is screwed into the mounting hole, the filter (3) comprises a screw end cover (31), a filter barrel (32) and filter cotton (33) inserted into the filter barrel (32), the screw end cover (31) is screwed to one end of the filter barrel (32), the filter barrel (32) is evenly provided with a plurality of through holes, and the filter cotton (33) is composed of a single layer of filter cotton (33) wound.

2. The experimental biological breeding cage filter device according to claim 1, characterized in that: A baffle (4) is arranged at the middle position inside the drawer (2), and the plurality of filters (3) are symmetrically arranged on both sides of the baffle (4).

3. The experimental biological breeding cage filter device according to claim 1, characterized in that: A through hole is provided at the center of the spiral end cap (31), the spiral end cap (31) is screwed into the mounting hole, a first activated carbon adsorption device is bonded to the inner wall of the spiral end cap (31), a truncated cone-shaped protrusion is provided on the side of the filter barrel (32) away from the spiral end cap and away from the drawer (2), a plurality of rectangular protrusions are provided on the inner bottom of the drawer (2), elastic paddles (5) are provided on the rectangular protrusions, and one end of the elastic paddle (5) is abutted against the outer wall of the filter (3).

4. The experimental biological breeding cage filter device according to claim 3, characterized in that: The elastic paddle (5) is provided with a receiving groove, a return spring (6) is inserted in the receiving groove, one end of the return spring (6) is connected to the elastic paddle (5), and the other end of the return spring (6) is fixedly connected to the rectangular protrusion.

5. The experimental biological breeding cage filter device according to claim 3, characterized in that: A second activated carbon filter device for sealing is arranged at one end of the filter barrel (32) away from the spiral end cover (31); the first activated carbon adsorption device and the second activated carbon filter device have the same structure; and both the first activated carbon adsorption device and the second activated carbon filter device have a multi-layer activated carbon bonded and bundled combination.

6. The experimental biological breeding cage filter device according to claim 1, characterized in that: The outer side of the drawer (2) is provided with a limit slide rail and a limit protrusion, the outer side of the drawer (2) is provided with a polymer antibacterial layer, and the bottom of the drawer (2) is provided with a sound insulation layer.

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