A cross flow displacement ventilated cage

Abstract

The application relates to a cross-flow air replacement type ventilation cage box applied to the technical field of animal experiments, which comprises a box body and a cover body arranged on the box body, and is characterized in that a pair of air replacement holes are arranged on the cover body in a penetrating mode, an air inlet pipe and an air outlet pipe are respectively arranged in the pair of air replacement holes, air valves are arranged at one end of the air inlet pipe and the air outlet pipe in the air replacement hole, the air valves extend into the cover body, air holes are arranged on the air valves, and the air holes on the air valves are arranged in a reverse mode. The application has the effect that fresh air is difficult to be discharged through the air outlet pipe after being input into the box body through the air inlet pipe, so that the fresh air can be fully circulated in the box body and waste gas can be discharged, and the air replacement rate is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of animal experiments, in particular to a ventilation cage box with opposite air flow replacement. BACKGROUND

[0002] The cage box, namely the independent ventilation cage, is a closed independent unit capable of continuously inputting clean air and centrally discharging waste gas, and is usually applied to an SPF (specific pathogen free) level experimental animal feeding room and is an experimental equipment for feeding and breeding SPF level experimental animals. The independent ventilation cage can prevent pathogens and microorganisms transmitted through air from entering the feeding environment by using a high-efficiency air filtration system, while maintaining the cleanliness of the feeding environment, thereby reducing the risk of cross infection between experimental animals and improving the health level of the experimental animals.

[0003] In the related art, the independent ventilation cage system is composed of a main machine, a cage rack and a cage box. The main machine is an air filtration system, and the main machine is connected with an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe extend to the cage rack. After the cage box is placed on the cage rack, it is connected to the air inlet pipe and the air outlet pipe. After the air is filtered by the main machine, the filtered air is input into the cage box through the air inlet pipe. After sufficient circulation, the waste gas is output from the cage box through the air outlet pipe and is discharged after being filtered again by the main machine.

[0004] According to the related art described above, the inventors believe that because the cage box has a small volume, the air inlet pipe and the air outlet pipe are close to each other after being connected to the cage box, which easily causes part of the fresh air to be directly discharged from the air outlet pipe after being input into the cage box, thereby making it difficult to achieve the purpose of fully circulating the air and discharging the waste gas, and reducing the air replacement rate. SUMMARY

[0005] In order to improve the problem that the fresh air is easily directly discharged from the air outlet pipe after being input into the cage box, thereby making it difficult to fully circulate and discharge the waste gas, the application provides a ventilation cage box with opposite air flow replacement.

[0006] The ventilation cage box with opposite air flow replacement provided by the application adopts the following technical scheme:

[0007] A ventilation cage box with opposite air flow replacement, comprising a box body and a cover body adapted to the box body and arranged on the box body, a pair of air exchange holes are arranged through the cover body, an air inlet pipe and an air outlet pipe are respectively arranged through the pair of air exchange holes, air valves are arranged at one end of the air inlet pipe and the air outlet pipe in the air exchange holes, the air valves are extended into the cover body, air holes are arranged in the air valves, and the air holes in the air valves are arranged in opposite directions.

[0008] Optionally, the vent valve comprises a connecting portion and a vent portion, the connecting portion is arranged at the end of the vent portion, the diameter of the connecting portion is larger than the diameter of the vent portion, the vent valve is sleeved on the air inlet pipe and the air outlet pipe through the connecting portion, the vent hole is arranged on the vent portion, and the vent portion extends into the cover body.

[0009] Optionally, the vent portion is provided with a limiting assembly, the limiting assembly comprises a limiting ring and a limiting spring, a limiting groove is arranged on the part of the vent portion in the cover body, the limiting ring is embedded in the limiting groove, the limiting spring is sleeved on the vent portion, one end of the limiting spring abuts against the side wall of the cover body, and the other end of the limiting spring abuts against the connecting portion.

[0010] Optionally, a plurality of first air exchange openings are arranged through the cover body, the plurality of first air exchange openings are used for maintaining air circulation between the inside and outside of the box body, and a filtering assembly is arranged on the cover body at the plurality of first air exchange openings, and the filtering assembly is used for filtering air.

[0011] Optionally, the filtering assembly comprises a mounting frame and a filter membrane, the filter membrane is fixed in the mounting frame, and the mounting frame is mounted on the cover body.

[0012] Optionally, an upper cover plate is arranged on the cover body, the upper cover plate covers the mounting frame, a plurality of second air exchange openings are arranged on the upper cover plate, and the plurality of second air exchange openings correspond to the plurality of first air exchange openings in a one-to-one manner.

[0013] Optionally, a mounting groove is arranged on the cover body, a water storage bottle is arranged in the mounting groove, a communication hole is arranged through the groove wall of the mounting groove, and the bottle opening of the water storage bottle is arranged in the communication hole and extends into the box body.

[0014] Optionally, a sealing ring is arranged in the communication hole, and the sealing ring abuts against the bottle opening of the water storage bottle.

[0015] Optionally, a grating plate is arranged in the box body, a plurality of fixing pieces are arranged at the edge of the grating plate, a plurality of fixing grooves are arranged on the side wall of the box body, and the plurality of fixing pieces are arranged on the side wall of the box body and correspond to the plurality of fixing grooves in a one-to-one manner.

[0016] Optionally, the grating plate comprises a horizontal portion and a groove portion, the groove portion is arranged corresponding to the mounting groove, the height of the groove portion is lower than the height of the horizontal portion, and a partition plate is arranged on the groove portion and used for separating the groove portion.

[0017] The air replacement ventilation cage box with the opposite air flow replacement type ventilation cage box, the air inlet holes on the air valves are opposite, therefore, the fresh air is not easy to be discharged through the air outlet pipe after being input into the box body through the air inlet pipe, so that the waste gas can be discharged after being fully circulated in the box body, and the air replacement rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the opposite air flow replacement type ventilation cage box in the embodiment of the present application.

[0019] Figure 2 is a sectional view of the box body and the cover body in the embodiment of the present application.

[0020] Figure 3 is Figure 2 is an enlarged view of part A in

[0021] Figure 4 is an exploded view of the opposite air flow replacement type ventilation cage box in the embodiment of the present application.

[0022] Reference signs: 1, box body; 11, fixing groove; 2, cover body; 21, air replacement hole; 22, first air replacement port; 23, mounting groove; 24, communication hole; 3, air inlet pipe; 4, air outlet pipe; 5, air valve; 51, connecting part; 52, air passage; 521, air inlet hole; 522, limiting groove; 6, limiting assembly; 61, limiting ring; 62, limiting spring; 7, filtering assembly; 71, mounting frame; 72, filtering film; 8, upper cover plate; 81, second air replacement port; 9, water storage bottle; 10, sealing ring; 20, grid plate; 201, horizontal part; 202, recessed part; 30, fixing sheet; 40, partition plate. DETAILED DESCRIPTION

[0023] The following will be described in detail in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0024] The embodiment of the present application discloses an opposite air flow replacement type ventilation cage box. Referring to Figure 1 The opposite air flow replacement type ventilation cage box comprises a box body 1 and a cover body 2, and the cover body 2 is matched with the box body 1 and covers the box body 1.

[0025] Referring to Figure 2 and Figure 3A pair of air exchange holes 21 are formed through the side of the cover 2, one of the air exchange holes 21 is provided with an air inlet pipe 3, and the other air exchange hole 21 is provided with an air outlet pipe 4, and the air inlet pipe 3 and the air outlet pipe 4 are both provided with an air valve 5 at one end. Specifically, the air valve 5 is composed of a connecting part 51 and an air passage part 52, the connecting part 51 is integrally formed at the end of the air passage part 52, the diameter of the connecting part 51 is larger than that of the air passage part 52, the air valve 5 is sleeved on the air inlet pipe 3 and the air outlet pipe 4 through the connecting part 51, the air passage part 52 partially extends into the cover 2, and the air passage part 52 is provided with an air passage hole 521, in the embodiment, the air passage holes 521 of the air valves 5 on the two sides are opposite in direction, and the air passage hole 521 of the air valve 5 at the end of the air inlet pipe 3 is arranged upward, and the air passage hole 521 of the air valve 5 at the end of the air outlet pipe 4 is arranged downward. Therefore, the fresh air input into the box body 1 through the air inlet pipe 3 is not easy to be discharged through the air outlet pipe 4, so that it can be fully circulated in the box body 1 and the exhaust gas can be discharged, thereby improving the air replacement rate.

[0026] With reference to Figure 2 and Figure 3 A pair of air valves 5 are provided with a limiting assembly 6, specifically, the limiting assembly 6 includes a limiting ring 61 and a limiting spring 62, the part of the air passage part 52 located in the cover 2 is provided with a limiting groove 522 along the circumference thereof, the limiting ring 61 is embedded in the limiting groove 522, and the limiting spring 62 is sleeved on the air passage part 52, one end of the limiting spring 62 abuts against the side wall of the cover 2, and the other end abuts against the connecting part 51, the limiting ring 61 abuts against the side wall of the cover 2 under the action of the limiting spring 62, and the air inlet pipe 3 and the air outlet pipe 4 have a tendency to move outward from the air exchange hole 21 under the action of the limiting spring 62. Therefore, when the box body 1 is placed on the cage and connected with the main machine, the air inlet pipe 3 and the air outlet pipe 4 are pressed towards the cover 2, the limiting spring 62 is contracted under force, at this time, the air passage part 52 is completely located in the cover 2, and the air can be input or discharged into or out of the box body 1 through the air passage holes 521 of the air valves 5, when the box body 1 is taken off from the cage and disconnected with the main machine, the limiting spring 62 is stretched and drives the air inlet pipe 3 and the air outlet pipe 4 to reset, at this time, the air passage part 52 slides into the air exchange hole 21 again, and the limiting ring 61 abuts against the side wall of the cover 2 again to seal the air exchange hole 21, so that the external air is not easy to enter the box body 1 and pollute the environment in the box body 1.

[0027] With reference to Figure 1 and Figure 4The top of the cover 2 is provided with a plurality of first air exchange openings 22, and the top of the cover 2 is provided with a filter assembly 7. Specifically, the filter assembly 7 includes a mounting frame 71 and a filter membrane 72. In the embodiment, the filter membrane 72 is a microorganism filter membrane in the prior art. The filter membrane 72 is fixed in the mounting frame 71. The mounting frame 71 is installed at the plurality of first air exchange openings 22 on the top of the cover 2, and the filter membrane 72 covers the plurality of first air exchange openings 22. In addition, in order to further fix the filter membrane 72, the top of the cover 2 is further provided with an upper cover plate 8. The upper cover plate 8 is installed on the top of the mounting frame 71. The upper cover plate 8 is provided with a plurality of second air exchange openings 81. The plurality of second air exchange openings 81 correspond to the plurality of first air exchange openings 22 one by one. Therefore, under the fixation of the upper cover plate 8, the filter membrane 72 is not easy to deviate, so that the air entering the box body 1 through the first air exchange opening 22 can be filtered after the box body 1 is disconnected from the main machine, or when the main machine fails, so as to avoid the irreversible damage to the animals in the box body 1 caused by the air supply failure and other problems as much as possible.

[0028] With reference to Figure 2 and Figure 4 In order to protect the animals in the box body 1 from being directly blown by the high-speed airflow at the air hole 521, the box body 1 is provided with a grid plate 20. The edge of the grid plate 20 is integrally provided with a plurality of fixing pieces 30. A plurality of fixing grooves 11 are formed on the side wall of the box body 1. The plurality of fixing pieces 30 are arranged on the side wall of the box body 1 and correspond to the plurality of fixing grooves 11 one by one. Therefore, the grid plate 20 can be fixed between the cover 2 and the box body 1, thereby limiting the movement range of the animals in the box body 1 to some extent, so that the animals are not easy to be directly blown by the high-speed airflow due to being too close to the air hole 521, thereby causing hypothermia and stress.

[0029] With reference to Figure 2 and Figure 4The grid plate 20 is composed of a horizontal part 201 and a recessed part 202. Specifically, the horizontal part 201 is horizontally shaped, the recessed part 202 is concave shaped, and the height of the recessed part 202 is lower than the height of the horizontal part 201. The recessed part 202 is provided with a partition plate 40. In the embodiment, three partition plates 40 are provided, one pair of which are respectively arranged on the two sides of the recessed part 202, and the other is arranged in the middle of the recessed part 202, so as to separate the recessed part 202, thereby facilitating the staff to feed water or food to the animals in the box body 1 through the recessed part 202. In addition, the cover body 2 is provided with a mounting groove 23 corresponding to the recessed part 202, the mounting groove 23 is provided with a water storage bottle 9, the mounting groove 23 is provided with a communication hole 24 communicating with the box body 1, the bottle opening of the water storage bottle 9 extends into the box body 1 through the communication hole 24, and a sealing ring 10 is embedded in the communication hole 24 and abuts against the bottle opening of the water storage bottle 9. In the embodiment, the sealing ring 10 is made of rubber material, so as to have good sealing property and prevent external air from entering the box body 1 through the communication hole 24. Therefore, the water storage bottle 9 can feed water to the animals in the box body 1 without opening the cover body 2, thereby avoiding direct contact between the animals and the external environment.

[0030] The implementation principle of the embodiment of the application is that the air inlet holes 521 of the air valves 5 on the pair of air inlet pipes 3 are oppositely arranged, the air inlet hole 521 of the air valve 5 at the end of the air inlet pipe 3 is upwardly arranged, and the air inlet hole 521 of the air valve 5 at the end of the air outlet pipe 4 is downwardly arranged. Therefore, the fresh air input into the box body 1 through the air inlet pipe 3 is not easily discharged through the air outlet pipe 4, so as to be fully circulated in the box body 1 and discharged, thereby improving the air replacement rate.

[0031] The above are the preferred embodiments of the application, which do not limit the protection scope of the application. Any equivalent changes made according to the structure, shape and principle of the application should be covered by the protection scope of the application.

Claims

1. A counterflow displacement ventilated cage comprising: The utility model provides a box body (1) and the cover body (2) of suitable cover is equipped on the box body (1), a pair of air exchange holes (21) are equipped on the cover body (2), a pair of air exchange holes (21) are equipped with air inlet pipe (3) and exhaust pipe (4) respectively, the one end of air inlet pipe (3) and exhaust pipe (4) in air exchange hole (21) is equipped with air valve (5), a pair of air valve (5) extends into cover body (2), a pair of air valve (5) is equipped with air hole (521), and air hole (521) on a pair of air valve (5) is reversely arranged. The air valve (5) includes a connecting portion (51) and an air passage portion (52), the connecting portion (51) is arranged at the end of the air passage portion (52), the diameter of the connecting portion (51) is larger than the diameter of the air passage portion (52), the air valve (5) is sleeved on the air inlet pipe (3) and the exhaust pipe (4) through the connecting portion (51), the air hole (521) is arranged on the air passage portion (52), and the air passage portion (52) extends into the cover body (2). The air passage portion (52) is provided with a limiting assembly (6), the limiting assembly (6) includes a limiting ring (61) and a limiting spring (62), the air passage portion (52) is provided with a limiting groove (522) in the part arranged in the cover body (2), the limiting ring (61) is embedded in the limiting groove (522), the limiting spring (62) is sleeved on the air passage portion (52), one end of the limiting spring (62) abuts against the side wall of the cover body (2), the other end of the limiting spring (62) abuts against the connecting portion (51), and the limiting ring (61) abuts against the side wall of the cover body (2) under the action of the limiting spring (62). The air holes (521) on a pair of air valves (5) are oppositely arranged, the air hole (521) of the air valve (5) at the end of the air inlet pipe (3) is upwardly arranged, and the air hole (521) of the air valve (5) at the end of the exhaust pipe (4) is downwardly arranged.

2. A counterflow displacement ventilated cage according to claim 1, wherein: A plurality of first air exchange openings (22) are arranged on the cover body (2), and the first air exchange openings (22) are used for keeping air flow between the inside and outside of the box body (1). A filter assembly (7) is arranged on the cover body (2) at the first air exchange openings (22), and the filter assembly (7) is used for filtering air.

3. A counterflow displacement ventilated cage according to claim 2, wherein: The filter assembly (7) includes a mounting frame (71) and a filter membrane (72), the filter membrane (72) is fixed in the mounting frame (71), the mounting frame (71) is mounted on the cover body (2), and the mounting frame (71) covers the filter membrane (72) on the first air exchange openings (22).

4. A counterflow displacement ventilated cage according to claim 3, wherein: The cover (2) is provided with an upper cover plate (8), the upper cover plate (8) is covered on the mounting frame (71), a plurality of second air exchange openings (81) are formed in the upper cover plate (8), and the plurality of second air exchange openings (81) correspond to the plurality of first air exchange openings (22) one by one.

5. A counterflow displacement ventilated cage according to claim 1, wherein: The cover (2) is provided with a mounting groove (23), the mounting groove (23) is provided with a water storage bottle (9), a communication hole (24) is formed in the groove wall of the mounting groove (23), the bottle opening of the water storage bottle (9) is arranged in the communication hole (24) and extends into the box body (1).

6. A counterflow displacement ventilated cage according to claim 5, wherein: The communication hole (24) is provided with a sealing ring (10), and the sealing ring (10) abuts against the bottle opening of the water storage bottle (9).

7. A counterflow displacement ventilated cage according to claim 5, wherein: The box body (1) is provided with a grid plate (20), a plurality of fixing pieces (30) are arranged at the edge of the grid plate (20), a plurality of fixing grooves (11) are formed in the side wall of the box body (1), and the plurality of fixing pieces (30) are arranged on the side wall of the box body (1) and correspond to the plurality of fixing grooves (11) one by one.

8. A counterflow displacement ventilated cage according to claim 7, wherein: The grid plate (20) comprises a horizontal part (201) and a groove part (202), the groove part (202) is arranged corresponding to the mounting groove (23), the height of the groove part (202) is lower than the height of the horizontal part (201), and the groove part (202) is provided with a partition plate (40), and the partition plate (40) is used for separating the groove part (202).

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