Automatic ventilation system for cage

Abstract

The utility model relates to an automatic ventilation system for a cage, which comprises an air inlet structure, the air inlet structure comprises an air inlet bin, side plates detachably connected to two sides of the air inlet bin, an air inlet pipe fixed at the top of the air inlet bin, and two groups of filter components fixed in the air inlet bin at intervals; the cage box structure comprises cage boxes fixed to the two sides of the air inlet bin and transition assemblies connected with the air inlet bin and the cage boxes. The air outlet structure comprises an air outlet bin connected to the side, away from the air inlet bin, of the cage box and an adsorption assembly fixed in the air outlet bin. According to the automatic ventilation system for the cage, the air inlet structure is arranged, filtered air is introduced into the cage boxes on the two sides, original air in the cage boxes is exhausted into the air after being adsorbed by the air outlet structure, the air in the cage boxes can be fully circulated, the quality of the air in the cage boxes can be guaranteed, and the service life of the cage boxes is prolonged. The growth of animals in the cage box is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of animal cage ventilation system, and specifically relates to an automatic ventilation system for cages. BACKGROUND

[0002] Animal breeding for experiments is an important link of research of human diseases and biological medicine research and development, with the development of biological medicine technology, higher requirements are put forward for animal experiments, and improving the quality of experimental animals to ensure the accuracy of experimental results and guarantee the health and safety of experimental personnel are basic requirements of animal experiments.

[0003] In the process of animal experiments, animal cages are indispensable process experimental equipment and instruments, which are used for feeding experimental mice to obtain accurate scientific research data.

[0004] The existing animal cages usually rely on life air windows arranged on the top to passively interact and circulate the air inside and outside, and the limitation of such interaction and circulation is great, which leads to poor air flowability at the bottom of the cage, and bacteria are easy to breed in the cage, which affects the health of experimental animals in the cage. UTILITY MODEL CONTENTS

[0005] The utility model provides an automatic ventilation system for cages, which ensures that the air in the cage can be fully circulated, guarantees the air quality in the cage, and is beneficial to the growth of animals in the cage.

[0006] To achieve the above purpose, the utility model adopts the technical scheme of an automatic ventilation system for cages, which comprises:

[0007] An air inlet structure, which comprises an air inlet bin, side plates detachably connected on both sides of the air inlet bin, an air inlet pipe fixed on the top of the air inlet bin, and two groups of filter assemblies fixed in the air inlet bin at intervals;

[0008] A cage structure, which comprises cages fixed on both sides of the air inlet bin and a transition assembly connecting the air inlet bin and the cages;

[0009] An air outlet structure, which comprises an air outlet bin connected on the side of the cage away from the air inlet bin and an adsorption assembly fixed in the air outlet bin.

[0010] Optimally, the filter assembly comprises inner and outer baffle plates fixed in the air inlet bin and a filter plate arranged between the inner and outer baffle plates.

[0011] Optimally, the air intake structure also includes a first fixed plate integrally connected to the outside of the air intake bin, a second fixed plate integrally connected to the inside of the side panel, an insert block integrally connected to the side of the first fixed plate close to the second fixed plate, a slot opened on one side of the second fixed plate and cooperating with the insert block, and a sealing gasket arranged between the first fixed plate and the second fixed plate.

[0012] Optimally, the transition assembly includes an exhaust pipe fixed on the side panel, a cone integrally connected to the exhaust pipe on the side away from the side panel, a transition pipe elastically passing through the cage box, and a transition groove passing through the transition pipe, and the cone rests in the transition groove.

[0013] Optimally, the transition assembly also includes a positioning column integrally connected to the side wall of the cage box, a positioning groove provided in the positioning column, an abutment plate integrally connected to one end of the transition pipe, a spring sleeved on the transition pipe, a protective cover fixed on the inner side of the cage box, and an air inlet hole provided on one side of the protective cover, the spring is abutted between the cage box and the abutment plate, and the exhaust pipe is inserted into the positioning groove.

[0014] Optimally, the adsorption assembly includes at least two adsorption plates fixed in the air outlet bin, an inner connecting plate connecting the adsorption plates, and an outer connecting plate connecting the adsorption plates and the air outlet bin.

[0015] Optimally, the air inlet structure also includes a first flange integrally connected to the outside of the air inlet bin, a second flange integrally connected to the outside of the side panel, a bolt rod passing through the first flange and the second flange, and a first fastening nut and a second fastening nut screwed on the bolt rod, the first fastening nut resting on the outside of the first flange, and the second fastening nut resting on the outside of the second flange.

[0016] Optimally, the diameter of the positioning groove is equal to the outer diameter of the exhaust pipe.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] The utility model provides an automatic ventilation system for cages, which introduces filtered air into the cage boxes on both sides by arranging an air inlet structure. The original gas in the cage boxes is adsorbed by the air outlet structure and then discharged into the air, thus avoiding pollution to the surrounding environment and being more environmentally friendly. In addition, the air in the cage boxes can be fully circulated, and the air quality in the cage boxes can be guaranteed, which is beneficial to the growth of the animals in the cage boxes.

[0019] Furthermore, the exhaust pipe does not extend into the cage (non-invasive structure), protecting the safety of the animals in the cage;

[0020] Furthermore, one set of air inlet structures can control two sets of cage box structures, which has a higher degree of integration, lower production cost, and smaller floor space. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a structural diagram of the air inlet bin of the utility model;

[0023] Figure 3 This is a structural diagram of the air outlet bin of the utility model;

[0024] Figure 4 For this utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 5 This is a cross-sectional view of the connection between the cage box and the air inlet bin of the utility model;

[0026] Description of reference numerals:

[0027] 1. Air inlet silo; 2. Air inlet duct; 3. Inner baffle; 4. Filter plate; 5. Outer baffle; 6. Side plate; 7. First flange; 8. Second flange; 9. First fixing plate; 10. Second fixing plate; 11. Insert; 12. Slot; 13. Sealing gasket; 14. Bolt rod; 15. First fastening nut; 16. Second fastening nut; 17. Exhaust pipe; 18. Cone; 19. Cage box; 20. Positioning column; 21. Positioning groove; 22. Transition duct; 23. Transition groove; 24. Abutment plate; 25. Spring; 26. Shield; 27. Air inlet; 28. Air outlet silo; 29. ​​Adsorption plate; 30. Outer connecting plate; 31. Inner connecting plate. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0029] like Figure 1 The figure shows the structure of the automatic ventilation system for cages of this utility model. It includes an air inlet structure, a cage box structure, and an air outlet structure. Two sets of cage boxes are located on either side of the air inlet structure. After entering the air inlet structure, the outside air is filtered and then flows to the cage boxes on the left and right sides. A single air inlet structure can control the ventilation of two cage box structures, resulting in higher integration, lower production costs, and a smaller footprint.

[0030] The air outlet structure is connected to the side of the cage box structure away from the air inlet structure. The gas in the cage box 19 will not be discharged directly into the atmosphere to avoid polluting the environment. It will be adsorbed by the air outlet structure and then discharged, which is more environmentally friendly.

[0031] like Figure 2 、 4 As shown, the air intake structure includes an air intake bin 1, an air intake pipe 2, an inner baffle 3, a filter plate 4, an outer baffle 5, a side plate 6, a first flange 7, a second flange 8, a first fixing plate 9, a second fixing plate 10, an insert 11, a slot 12, a sealing gasket 13, a bolt rod 14, a first fastening nut 15, and a second fastening nut 16. The air intake bin 1 is welded from aluminum profiles and fixed to a stainless steel cage. Its interior is a hollow structure to facilitate air circulation.

[0032] The air inlet duct 2 is connected to the top of the air inlet bin 1 and is connected to the blower via a pipe. The blower draws air into the air inlet bin 1 through the air inlet duct 2. Two sets of filter assemblies are fixed in the air inlet bin 1 at intervals, one on either side of the air inlet duct 2. After being filtered by the filter assemblies, the air in the air inlet bin 1 is discharged into the cages 19 on either side.

[0033] Each set of filter components includes an inner baffle 3, a filter plate 4 and an outer baffle 5. The inner baffle 3 and the outer baffle 5 are fixed in the air inlet bin 1 by screw fastening. The filter plate 4 is arranged between the inner baffle 3 and the outer baffle 5 to filter the air flowing through, filter out dust, particles, etc. contained in the air, and improve the air quality in the cage box 19 (a plurality of through holes are distributed in an array on the inner baffle 3 and the outer baffle 5 for gas circulation).

[0034] There are two side panels 6, which are detachably fixed on both sides of the air inlet bin 1, so that the staff can regularly replace the filter plate 4 in the air inlet bin 1. When the side panels 6 are removed later, the cage box structure is removed first, and then the side panels 6 can be removed.

[0035] The first flange 7 is integrally connected to the outside of the air inlet silo 1, and the second flange 8 is integrally connected to the outside of the side panel 6. Bolt rods 14 extend horizontally through the first and second flanges 7 and 8. First and second fastening nuts 15 and 16 are screwed onto the ends of the bolt rods 14, respectively. The first fastening nut 15 abuts the outside of the first flange 7, while the second fastening nut 16 abuts the outside of the second flange 8. By tightening the first and second fastening nuts 15 and 16, the side panel 6 is secured to the outside of the air inlet silo 1.

[0036] While the bolt-nut connection is relatively reliable and secure, there is still a gap at the joint. Therefore, a sealing assembly is provided between the air intake hopper 1 and the side panel 6. The sealing assembly includes a first fixing plate 9, a second fixing plate 10, an insert 11, a slot 12, and a sealing gasket 13. The first fixing plate 9 is integrally connected to the outside of the air intake hopper 1, and the second fixing plate 10 is integrally connected to the inside of the side panel 6.

[0037] like Figure 4As shown, the insertion block 11 is integrally connected to the first fixing plate 9 on the side close to the second fixing plate 10, and the insertion slot 12 is arranged on the second fixing plate 10 on the side close to the first fixing plate 9 and cooperates with the insertion block 11. When the side plate 6 is fixed on one side of the air inlet chamber 1, the insertion block 11 is inserted into the insertion slot 12, thereby prolonging the air flow path to improve the sealing performance.

[0038] A rubber sealing gasket 13 is arranged between the first fixing plate 9 and the second fixing plate 10, which is deformed when the side plate 6 is fixed on one side of the air inlet chamber 1, thereby further improving the sealing performance between the two.

[0039] The cage structures are respectively fixed on the two sides of the air inlet structure, and the external air passes through the air inlet structure and is filtered, and then flows to the cage structures on the left and right sides, respectively. Figure 5 As shown, the cage structure includes an exhaust pipe 17, a tapered portion 18, a cage 19, a positioning column 20, a positioning slot 21, a transition pipe 22, a transition slot 23, a stop plate 24, a spring 25, a protective cover 26, and an air inlet hole 27. The cage 19 is fixed on the stainless steel cage frame by means of bolt and nut cooperation, and mice are bred in the cage 19. The positioning column 20 is integrally connected to the outside of the cage 19, the positioning slot 21 is arranged in the positioning column 20, and the positioning slot 21 is used for inserting and assembling the exhaust pipe 17 and guiding the exhaust pipe 17 to avoid shaking of the exhaust pipe 17 in the positioning slot 21.

[0040] The transition pipe 22 is arranged in the positioning slot 21 and penetrates the side wall of the cage 19, the stop plate 24 is integrally connected to the side of the transition pipe 22 away from the cage 19, and the spring 25 is sleeved on the transition pipe 22 and located between the cage 19 and the stop plate 24. By arranging the spring 25, the reliability of the connection between the transition pipe 22 and the exhaust pipe 17 can be improved.

[0041] The transition slot 23 horizontally penetrates the transition pipe 22 and is in communication with the inside of the cage 19, and the air filtered in the air inlet chamber 1 passes through the exhaust pipe 17 and the transition slot 23 into the cage 19. The protective cover 26 is fixed on the inner side wall of the cage 19, and the air inlet hole 27 is arranged on the inner side of the protective cover 26, so as to facilitate the air to enter the cage 19. By arranging the protective cover 26, the transition pipe 22 can be prevented from extending into the cage 19, and the mice in the cage 19 can be prevented from biting the transition pipe 22.

[0042] The exhaust pipe 17 is fixed on the outside of the side plate 6, the tapered portion 18 is integrally connected to the end of the exhaust pipe 17 away from the air inlet chamber 1 and abuts against the transition slot 23. In actual installation, the exhaust pipe 17 is inserted into the positioning slot 21 until the spring 25 is compressed, and under the reverse force of the spring 25, the transition pipe 22 is tightly abutted against the peripheral surface of the tapered portion 18, thereby avoiding leakage of the filtered air. At the same time, the exhaust pipe 17 does not extend into the cage 19 (non-invasive structure), thereby protecting the safety of the animals in the cage.

[0043] The air outlet structure is connected to the side of the cage box structure away from the air inlet structure, so that the gas in the cage box 19 is not directly discharged into the atmosphere, avoiding pollution of the environment, and is discharged after being adsorbed by the air outlet structure, which is more environmentally friendly. Figure 3 As shown in the figure, the air outlet structure comprises an air outlet bin 28, an adsorption plate 29, an outer connecting plate 30 and an inner connecting plate 31.

[0044] The air outlet bin 28 is fixed on the cage frame and connected to one side of the cage box 19 through an air outlet pipe. The air outlet pipe and the exhaust pipe 17 are respectively located on the two sides of the cage box 19, and the exhaust pipe 17 is close to the bottom of the cage box 19, and the air outlet pipe is close to the top of the cage box 19. Therefore, when the gas flows, the gas flow area in the cage box 19 is wider, avoiding the blind area of ventilation.

[0045] The adsorption plate 29 is at least two, fixed in the air outlet bin 28, the adsorption plate 29 is activated carbon plate, for adsorbing the impurities contained in the gas in the cage box 19, avoiding direct discharge to pollute the air. The outer connecting plate 30 is used for connecting the adsorption plate 29 and the air outlet bin 28, and the outer connecting plate 30 is close to the air inlet end of the air outlet bin 28; the inner connecting plate 31 is fixed between the adsorption plate 29, and away from the air inlet end of the air outlet bin 28. By setting the outer connecting plate 30 and the inner connecting plate 31, the adsorption plate 29 can be supported, and the original gas in the cage box 19 is prevented from being directly discharged to the atmosphere, ensuring that the gas has enough contact area with the adsorption plate 29, and improving the adsorption effect.

[0046] The cage automatic ventilation system sets the air inlet structure to pass the filtered air into the cage box 19 on both sides, and the exhaust pipe 17 does not extend into the cage box 19 (non-invasive structure), which protects the safety of the animals in the cage. The original gas in the cage box 19 is adsorbed by the air outlet structure and then discharged into the air, avoiding pollution of the surrounding environment and being more environmentally friendly. One set of air inlet structure can control two sets of cage box structure, which has higher integration, lower manufacturing cost and smaller area.

[0047] The above examples are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable people skilled in the art to understand the content of the utility model and to implement it, and it cannot limit the protection scope of the utility model. Any equivalent change or modification according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. An automatic ventilation system for cages, characterized in that: It includes: An air intake structure, comprising an air intake bin (1), side panels (6) detachably connected to both sides of the air intake bin (1), an air intake pipe (2) fixed to the top of the air intake bin (1), and two groups of filter assemblies fixed at intervals within the air intake bin (1); A cage box structure, the cage box structure comprising cage boxes (19) fixed on both sides of the air inlet bin (1) and a transition component connecting the air inlet bin (1) and the cage boxes (19); An air outlet structure comprises an air outlet bin (28) connected to a side of the cage box (19) away from the air inlet bin (1) and an adsorption component fixed in the air outlet bin (28).

2. The automatic ventilation system for cages according to claim 1, characterized in that: The filter assembly comprises an inner baffle (3) and an outer baffle (5) fixed in the air inlet bin (1), and a filter plate (4) arranged between the inner baffle (3) and the outer baffle (5).

3. The automatic ventilation system for cages according to claim 1, characterized in that: The air inlet structure further includes a first fixing plate (9) integrally connected to the outside of the air inlet bin (1), a second fixing plate (10) integrally connected to the inside of the side plate (6), an insert (11) integrally connected to the first fixing plate (9) on the side close to the second fixing plate (10), a slot (12) provided on one side of the second fixing plate (10) and cooperating with the insert (11), and a sealing gasket (13) provided between the first fixing plate (9) and the second fixing plate (10).

4. The automatic ventilation system for cages according to claim 1, characterized in that: The transition assembly comprises an exhaust pipe (17) fixed to the side plate (6), a cone (18) integrally connected to the exhaust pipe (17) on a side away from the side plate (6), a transition pipe (22) elastically passing through the cage box (19), and a transition groove (23) passing through the transition pipe (22), wherein the cone (18) abuts against the transition groove (23).

5. The automatic ventilation system for cages according to claim 4, characterized in that: The transition assembly further comprises a positioning column (20) integrally connected to the side wall of the cage box (19), a positioning groove (21) provided in the positioning column (20), a support plate (24) integrally connected to one end of the transition pipe (22), a spring (25) sleeved on the transition pipe (22), a shield (26) fixed on the inner side of the cage box (19), and an air inlet (27) provided on one side of the shield (26), wherein the spring (25) is abutted between the cage box (19) and the support plate (24), and the exhaust pipe (17) is inserted into the positioning groove (21).

6. The automatic ventilation system for cages according to claim 1, characterized in that: The adsorption assembly comprises at least two adsorption plates (29) fixed in the air outlet bin (28), an inner connecting plate (31) connecting the adsorption plates (29), and an outer connecting plate (30) connecting the adsorption plates (29) and the air outlet bin (28).

7. The automatic ventilation system for cages according to claim 1, characterized in that: The air inlet structure further includes a first flange (7) integrally connected to the outside of the air inlet bin (1), a second flange (8) integrally connected to the outside of the side plate (6), a bolt rod (14) passing through the first flange (7) and the second flange (8), and a first fastening nut (15) and a second fastening nut (16) screwed on the bolt rod (14), wherein the first fastening nut (15) abuts against the outside of the first flange (7), and the second fastening nut (16) abuts against the outside of the second flange (8).

8. The automatic ventilation system for cages according to claim 5, characterized in that: The diameter of the positioning groove (21) is equal to the outer diameter of the exhaust pipe (17).

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