An IVC rat cage ventilation system that is easy to replace without disassembly

Abstract

This utility model relates to an IVC cage ventilation device that is easy to replace without disassembly, belonging to the field of IVC cage technology. This easy-to-replace IVC cage ventilation device includes: a shell, with two fans installed on the inner wall of the shell; a connecting pipe connected to one side of the top of the shell; a return air pipe connected to one side of the bottom of the shell; and a filter mechanism installed on the outer wall of the shell. A filter cylinder between the connecting pipe and the exhaust pipe filters the exhaust gas adsorbed inside the IVC cage through a filter element on its inner wall. Passing the exhaust gas through another filter improves the filtration efficiency. When one fan works in conjunction with the inlet pipe to deliver external air, the external air passes through a filter screen inside the installation cylinder, filtering impurities from the external air and preventing impurities from entering and clogging the filter. This improves the ventilation efficiency and effect of the IVC cage ventilation device.

Description

Technical Field

[0001] This utility model relates to the field of IVC cage technology, and in particular to an IVC cage ventilation device that is easy to replace without disassembly. Background Technology

[0002] IVC cages are key equipment in the field of laboratory animal research, mainly used for the independent ventilation and isolation of small animals such as rats and mice to reduce the risk of cross-infection and ensure animal welfare. Their core technologies include an independent air supply system, intelligent variable air volume control, high-efficiency filtration devices, and real-time environmental monitoring. When using IVC cages for extended periods, the ventilation equipment needs to be disassembled and replaced.

[0003] As shown in the reference case "An IVC Rat Cage Ventilation System with No Removable Filter" (Announcement No. CN222074146U), the exhaust gas collected in the rat cage can be discharged into the enclosure by starting the return air fan. The exhaust gas can be filtered by the pre-filter and high-efficiency filter inside the enclosure. The filtered air can be quickly sent into the rat cage through the air inlet by starting the intake fan. At the same time, the pre-filter and high-efficiency filter are easy to replace without tools.

[0004] According to the above reference materials, the cover can be opened by separating the latch handle from the latch fastener in the above device, so that the HEPA filter and the pre-filter can be taken out and replaced. However, when the ventilation equipment filters the air, the filtration effect of the pre-filter and HEPA filter may not be ideal. Impurities are easy to accumulate in the return air port and the air inlet, which affects the filtration efficiency of the ventilation equipment and makes it inconvenient to improve the filtration efficiency of the ventilation equipment, thus reducing the use effect of the ventilation equipment. Utility Model Content

[0005] Therefore, it is necessary to provide an IVC cage ventilation system that is easy to replace and does not require disassembly, in order to address the problem of the inconvenience in improving the filtration efficiency of ventilation equipment.

[0006] The device includes an outer casing, with two fans installed on the inner wall of the casing. A connecting pipe is connected to one side of the top of the casing, and a return air pipe is connected to one side of the bottom of the casing. A filter mechanism is provided on the outer wall of the casing. The filter mechanism includes an exhaust pipe at one end of the connecting pipe, a filter cylinder between the exhaust pipe and the connecting pipe, a filter element installed in the middle of the inner wall of the filter cylinder, and threaded sleeves rotatably connected to both ends of the filter cylinder. The two threaded sleeves are respectively threaded to one end of the exhaust pipe and one end of the connecting pipe. A replacement assembly is provided on one side of the casing.

[0007] In one embodiment, the filtering mechanism further includes a rotating ring fixedly connected to one end of the threaded sleeve, one end of which is rotatably connected to one end of the inner wall of the filter cylinder.

[0008] In one embodiment, sealing rings are provided at both ends of the filter cartridge.

[0009] In one embodiment, a mounting cylinder is provided on one side of the housing, and a filter screen is fixedly connected to the inner wall of the mounting cylinder.

[0010] In one embodiment, one side of one of the fans is connected to an air inlet pipe, one end of which passes through the housing and is threadedly connected to the mounting cylinder.

[0011] In one embodiment, the replacement assembly includes two filters slidably connected to the inner wall of the housing, the filters being disposed below the fan, and two baffles rotatably connected to one side of the housing.

[0012] In one embodiment, a limiting rod is provided on one side of the baffle, one end of which passes through the baffle and is embedded in one side of the filter.

[0013] In one embodiment, two limiting grooves are provided on one side of the housing, and one end of the limiting rod is embedded in the limiting groove.

[0014] Beneficial effects 1. The above-mentioned IVC cage ventilation equipment that is easy to replace without disassembly has a filter cylinder between the connecting pipe and the exhaust pipe. The filter element on the inner wall can filter the exhaust gas adsorbed in the IVC cage. The exhaust gas passes through another filter, which can improve the filtration efficiency of the filter and extend the service life of the filter. Two threaded sleeves are connected to the connecting pipe and the exhaust pipe through a swivel. The sealing ring can prevent exhaust gas leakage. When one of the fans cooperates with the air inlet pipe to transport external air, the external air passes through the filter screen in the mounting cylinder to filter impurities in the external air and prevent impurities from entering one of the filters and causing blockage. The return air pipe supplies air to the IVC cage, which can improve the ventilation efficiency of the IVC cage ventilation equipment and improve the ventilation effect of the IVC cage ventilation equipment. 2. After prolonged use of the filter, remove the limiting rod from one side of the filter. The baffle can be rotated upwards to align the limiting rod with the limiting groove and embed it into the limiting groove to fix the position of the baffle, thereby releasing the restriction on the filter. The filter can then be pulled to one side to open and be quickly replaced, preventing the filter from affecting the ventilation of the IVC cage and improving the ventilation efficiency of the IVC cage ventilation equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the external structure of the present utility model; Figure 2 This is a schematic diagram of the filter mechanism structure of this utility model; Figure 3 This is a half-sectional structural diagram of the filter mechanism of this utility model; Figure 4 This is a partial structural diagram of the filtration mechanism of this utility model; Figure 5 This is a schematic diagram of the replacement component structure of this utility model.

[0017] Figure label: 100. Housing; 200. Fan; 300. Connecting pipe; 400. Return air duct; 500. Filter mechanism; 510. Exhaust pipe; 520. Filter cartridge; 530. Filter element; 540. Threaded sleeve; 550. Rotary ring; 560. Sealing ring; 570. Mounting cylinder; 571. Filter screen; 572. Inlet pipe; 580. Replacement component; 581. Filter; 582. Baffle; 583. Limiting rod; 584. Limiting groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The following is combined with Figure 1 - Figure 5 This invention describes an IVC (Indoor Canopy) cage ventilation system that is easy to replace without disassembly.

[0020] In one embodiment, an IVC cage ventilation device that is easy to replace without disassembly includes a housing 100. Two fans 200 are installed on the inner wall of the housing 100. A connecting pipe 300 is connected to one side of the top of the housing 100, and a return air pipe 400 is connected to one side of the bottom of the housing 100. A filter mechanism 500 is provided on the outer wall of the housing 100. The filter mechanism 500 includes an exhaust pipe 510 at one end of the connecting pipe 300, a filter cylinder 520 between the exhaust pipe 510 and the connecting pipe 300, a filter element 530 installed in the middle of the inner wall of the filter cylinder 520, and threaded sleeves 540 rotatably connected to both ends of the filter cylinder 520. The two threaded sleeves 540 are respectively threadedly connected to one end of the exhaust pipe 510 and the connecting pipe 300. A replacement component 580 is provided on one side of the housing 100.

[0021] It should be noted that the "Ophim SVHP-C" IVC mouse cage is made by: Cage: Made of polysulfone or PC material, resistant to high temperature and high pressure sterilization, with a transparent viewing window for easy observation of animal activities.

[0022] Cage frame: Made of 304 stainless steel, with a multi-layer structure design and equipped with a coordinate numbering system for easy management. The air inlet and exhaust ducts are integrated into the cage frame structure.

[0023] Intelligent main unit: Responsible for air purification and differential pressure control, including pre-filter and high-efficiency filter components, adjustable differential pressure and air exchange frequency, equipped with touch screen control and alarm components.

[0024] When filtration is performed on the IVC cage, the filter mechanism 500, in conjunction with the exhaust pipe 510 and the connecting pipe 300, can adsorb and filter the air inside the IVC cage. One of the fans 200, in conjunction with the filter screen 571 inside the mounting cylinder 570, through the air inlet pipe 572, can filter impurities in the outside air. The replacement component 580, in conjunction with the baffle 582 and the limiting rod 583, can release the restriction on the filter 581, allowing the filter 581 to be replaced. The combination of the filter mechanism 500 and the replacement component 580 can improve the ventilation efficiency of the ventilation equipment without affecting its normal operation.

[0025] like Figure 2 , Figure 3 and Figure 4 As shown, the filter mechanism 500 also includes a rotating ring 550 fixedly connected to one end of the threaded sleeve 540. One end of the rotating ring 550 is rotatably connected to one end of the inner wall of the filter cylinder 520. Both ends of the filter cylinder 520 are provided with sealing rings 560. One side of the outer shell 100 is provided with an installation cylinder 570. A filter screen 571 is fixedly connected to the inner wall of the installation cylinder 570. One side of one of the fans 200 is connected to an air inlet pipe 572. One end of the air inlet pipe 572 passes through the outer shell 100 and is threadedly connected to the installation cylinder 570.

[0026] In this embodiment, the filter cartridge 520 is threadedly connected to the connecting pipe 300 and the exhaust pipe 510 via two threaded sleeves 540, allowing the filter cartridge 520 to be installed. When another fan 200 adsorbs exhaust gas in the IVC cage through the connecting pipe 300 and the exhaust pipe 510, the filter element 530 can perform preliminary filtration of the exhaust gas, which can improve the filtration efficiency of the filter 581. When one of the fans 200 adsorbs external air, the mounting cylinder 570 is installed inside the air inlet pipe 572, and the filter screen 571 can filter impurities in the air, preventing impurities from clogging the filter 581, thereby improving the filtration efficiency of the IVC cage ventilation equipment and enhancing its performance.

[0027] like Figure 5 As shown, the replacement component 580 includes two filters 581 slidably connected to the inner wall of the housing 100. The filters 581 are located below the fan 200. Two baffles 582 are rotatably connected to one side of the housing 100. A limit rod 583 is provided on one side of the baffle 582. One end of the limit rod 583 passes through the baffle 582 and is embedded in one side of the filter 581. Two limit grooves 584 are opened on one side of the housing 100. One end of the limit rod 583 is embedded in the limit groove 584.

[0028] In this embodiment, when replacing the filter 581, the limiting rod 583 is removed from one side of the filter 581, releasing the restriction on the filter 581 and the baffle 582. The baffle 582 is rotated upward so that one end of the limiting rod 583 is inserted into the limiting groove 584, which can fix the baffle 582. The filter 581 is pulled to one side and removed, which can replace the filter 581 and improve the ventilation efficiency of the IVC cage ventilation equipment.

[0029] Working principle: The control unit drives one of the fans 200 to operate, which, in conjunction with the air inlet pipe 572 and the mounting cylinder 570, adsorbs external air. The external air is delivered to one of the filters 581 through the filter screen 571 for filtration and purification, and then delivered to the IVC cage through the return air pipe 400. The filter cylinder 520 is manually connected to the connecting pipe 300 and the exhaust pipe 510 by rotating two threaded sleeves 540. The control unit drives another fan 200 to operate, which, in conjunction with the exhaust pipe 510 through the connecting pipe 300, adsorbs the exhaust gas in the IVC cage. The exhaust gas is filtered by the filter element 530 in the filter cylinder 520, and then passes through another filter 581 and is discharged by another fan 200. The limit rod 583 is manually driven out of the filter 581, and the baffle 582 is manually rotated upward to insert the limit rod 583 into the limit groove 584. The filter 581 can then be removed from the housing 100 for replacement.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A disassembly-free, easily replaceable IVC mouse cage air exchange device, characterized in that, include: The outer casing (100) has two fans (200) installed on its inner wall, a connecting pipe (300) is connected to one side of the top of the outer casing (100), a return air pipe (400) is connected to one side of the bottom of the outer casing (100), and a filter mechanism (500) is provided on the outer wall of the outer casing (100). The filter mechanism (500) includes an exhaust pipe (510) at one end of a connecting pipe (300), a filter cylinder (520) between the exhaust pipe (510) and the connecting pipe (300), a filter element (530) installed in the middle of the inner wall of the filter cylinder (520), and threaded sleeves (540) rotatably connected to both ends of the filter cylinder (520). The two threaded sleeves (540) are respectively threaded to one end of the exhaust pipe (510) and the connecting pipe (300). A replacement component (580) is provided on one side of the outer shell (100).

2. The disassembly-free easy change out IVC mouse cage ventilation apparatus of claim 1, wherein, The filter mechanism (500) further includes a rotating ring (550) fixedly connected to one end of the threaded sleeve (540), and one end of the rotating ring (550) is rotatably connected to one end of the inner wall of the filter cylinder (520).

3. The disassembly-free easy change out IVC mouse cage ventilation apparatus of claim 1, wherein, Both ends of the filter cartridge (520) are provided with sealing rings (560).

4. The disassembly-free easy change out IVC mouse cage ventilation apparatus of claim 1, wherein, An installation cylinder (570) is provided on one side of the outer casing (100), and a filter screen (571) is fixedly connected to the inner wall of the installation cylinder (570).

5. The disassembly-free easy change out IVC mouse cage ventilation apparatus of claim 1, wherein, One of the fans (200) has an air inlet pipe (572) connected to one side, one end of which passes through the housing (100) and is threadedly connected to the mounting cylinder (570).

6. The IVC rat cage ventilation device that is easy to replace without disassembly according to claim 1, characterized in that, The replacement assembly (580) includes two filters (581) slidably connected to the inner wall of the housing (100), the filters (581) being disposed below the fan (200), and two baffles (582) being rotatably connected to one side of the housing (100).

7. The IVC rat cage ventilation system that is easy to replace without disassembly according to claim 6, characterized in that, A limiting rod (583) is provided on one side of the baffle (582), and one end of the limiting rod (583) passes through the baffle (582) and is embedded in one side of the filter (581).

8. The disassembly-free easy change out IVC mouse cage ventilation apparatus of claim 7, wherein, Two limiting grooves (584) are provided on one side of the outer shell (100), and one end of the limiting rod (583) is embedded in the limiting groove (584).

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