An IVC animal cage with convenient air volume adjustment
By introducing adjustable air intake components and partition structures into IVC animal cages, the problem of fixed vent size has been solved, enabling flexible adjustment of airflow and improved environmental cleanliness, thus ensuring the normal growth of animals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU NEW DISTRICT FENGQIAO PURIFICATION EQUIP FACTORY
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-24
Smart Images

Figure CN224539080U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of animal cage technology, specifically relating to an IVC animal cage that facilitates airflow adjustment. Background Technology
[0002] White mice are a variant of wild mouse rats. The most widely bred breed in China is the one introduced from an Indian research institute to Kunming, Yunnan in 1946. They are mostly used for medical research. Laboratory mice, white mice, and lab mice refer to white-furred rats or mice that are commonly used as experimental animals in teaching and research in physiology, medicine, pharmacy, and other disciplines. When breeding white mice, IVC cages are needed to store and raise them.
[0003] The utility model patent with application number "202121574738.0" and patent name "A Multifunctional IVC Cage" adopts an installation method with an internal water bottle, so the water source will not be contaminated; the air inlet on one side of the lid continuously introduces clean air into the cage, while the air containing bacteria inside the cage is discharged through the exhaust port, ensuring the cleanliness of the air inside the cage; the air window on the lid enables air circulation, while the filter screen can filter out dust and impurities from the outside air, improving the cleanliness inside the cage and providing a good environment for the normal development of pets.
[0004] The aforementioned existing patents have the following drawbacks: the size of the air inlet is fixed and cannot be manually adjusted; excessive ventilation may cause young animals to catch a cold, while insufficient ventilation may cause the air inside the cage to become polluted and stuffy, thus affecting the normal growth of the animals. Utility Model Content
[0005] This invention provides an IVC animal cage that facilitates airflow adjustment, solving the problem that the size of the ventilation openings in existing animal cages is fixed and cannot be manually adjusted.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an IVC animal cage with easily adjustable airflow, comprising:
[0007] cage box;
[0008] An air intake assembly includes an air intake pipe fixed to one side of the cage and an adjusting disc rotatably installed inside the air intake pipe, wherein the rotation axis of the adjusting disc is perpendicular to the axis of the air intake pipe.
[0009] Optimally, it also includes a partition and a collection box inserted into the cage, and a mesh through the partition, the partition dividing the cage into a feeding area and a defecation area, the collection box being inserted into the defecation area.
[0010] Optimally, the air intake assembly further includes a fixing sleeve fixed to the side wall of the air intake pipe, a rotating shaft passing through the fixing sleeve and fixed to the adjusting plate, a dial fixed to one side of the fixing sleeve, a scale set on the dial, a rotating plate fixed to one end of the rotating shaft, and a pointer integrally connected to one side of the rotating plate and cooperating with the dial.
[0011] Optimally, the air intake assembly further includes an arc-shaped groove penetrating the dial, a bolt penetrating the arc-shaped groove and the rotating plate, a nut screwed onto one side of the bolt, and a washer sleeved on the bolt, the washer being located between the rotating plate and the bolt.
[0012] Optimally, the air intake assembly further includes a bushing integrally connected to the center of the adjustment disc and a shaft groove extending axially through the bushing, with the rotating shaft fixed within the shaft groove.
[0013] Ideally, the pointer is cone-shaped, with its cone facing the scale.
[0014] Optimally, it also includes a plug plate detachably mounted on top of the cage and a top plate detachably mounted on top of the plug plate.
[0015] Optimally, it also includes a first groove spaced apart on the top of the cage, a first insert post spaced apart on the bottom of the insert plate and cooperating with the first groove, a second groove spaced apart on the top of the insert plate, and a second insert post spaced apart on the bottom of the top plate and cooperating with the second groove.
[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0017] This utility model of IVC animal cages, which facilitates airflow adjustment, has an air intake component installed on one side of the cage. The breeder can rotate the adjustment disc to adjust the size of the air intake pipe, making adjustment more convenient and improving the versatility of the cage.
[0018] Furthermore, the partitions and mesh divide the cage into a feeding area and a defecation area. Animal excrement falls through the mesh into the collection box below, improving the cleanliness of the feeding environment. Attached Figure Description
[0019] Figure 1 This is a front view of the first embodiment of the present invention;
[0020] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0021] Figure 3 This is a schematic diagram of the air intake assembly of this utility model;
[0022] Figure 4 This is a structural schematic diagram of the air intake component of this utility model from another angle;
[0023] Figure 5 This is a front view of the air intake assembly of this utility model;
[0024] Figure 6 This is a schematic diagram of the structure of the adjusting disc of this utility model;
[0025] Figure 7 This is a front view of the second embodiment of the present invention;
[0026] Figure 8 This is a partial exploded view of another embodiment of the present invention;
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Cage box; 2. Boss; 3. First slot; 4. Second slot; 5. Partition; 6. Mesh; 7. Collection box; 8. First handle; 9. Cage door; 10. Second handle; 11. Insert plate; 12. First groove; 13. First insert post; 14. Top plate; 15. Second groove; 16. Second insert post; 17. Air outlet pipe; 18. Air inlet pipe; 19. Flange; 20. Fixing sleeve; 21. Dial; 22. Scale; 23. Arc groove; 24. Shaft; 25. Rotating plate; 26. Pointer; 27. Bolt; 28. Washer; 29. Nut; 30. Adjusting plate; 31. Bushing; 32. Shaft groove. Detailed Implementation
[0029] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings. Example
[0030] like Figure 1 The diagram shows an IVC animal cage for easy airflow adjustment according to the present invention. The cage 1 contains experimental animals (such as mice). The cage 1 is formed by a set of bottom plates and four sets of side plates, which together form a rearing area. The top plate 14 is fixed to the top of the four sets of side plates by screws, thereby sealing the cage 1.
[0031] like Figure 2As shown, the boss 2 is integrally connected to the inner wall of the cage 1. The first slot 3 is opened on the inner side of the boss 2 and is arranged opposite to it. The partition 5 is inserted into the first slot 3, and the partition 5 divides the cage 1 into an upper feeding area and a lower excretion area (the animals kept in the cage 1 are located in the feeding area). The mesh 6 penetrates the partition 5 vertically. The excrement produced by the animals in the feeding area falls into the collection box 7 in the lower excretion area through the mesh 6 on the partition 5, ensuring the cleanliness of the environment in the feeding area of the cage 1 and preventing excrement from accumulating on the surface of the partition 5 and breeding bacteria, thereby affecting the normal growth of the laboratory mice.
[0032] Inserting the partition 5 into the first slot 3 allows for regular removal and cleaning of the partition 5, resulting in a more thorough cleaning and avoiding cleaning dead spots inside the cage box 1.
[0033] The second slot 4 is located inside the protrusion 2 and below the first slot 3. The top of the collection box 7 is open to receive excrement that passes over the partition 5. The first handle 8 is installed on one side of the collection box 7 by means of screws. The keeper can periodically pull out the collection box 7 to clean the excrement inside.
[0034] The cage door 9 is hinged to the side wall of the cage box 1, and the second handle 10 is fixed to the cage door 9 by screws, making it convenient for the breeder to open the cage door 9 and put food, water and other items into the cage box 1.
[0035] like Figure 3-5 The diagram shows the structure of the air intake assembly. The air intake assembly is installed on the side wall of the cage 1 and is used to regulate the airflow within the cage 1. The air intake assembly includes an air intake pipe 18, a flange 19, a fixing sleeve 20, a dial 21, a scale 22, an arc groove 23, a rotating shaft 24, a rotating plate 25, a pointer 26, bolts 27, gaskets 28, nuts 29, an adjusting plate 30, a bushing 31, and a shaft groove 32. The flange 19 is fixed to both ends of the air intake pipe 18 by welding. One flange 19 is fixed to the side wall of the cage 1 by screws. The pipe connected to the air pump is connected to the flange 19 on the other side of the air intake pipe 18 through the flange, thereby introducing air into the cage 1.
[0036] The fixing sleeve 20 is fixed to the outer wall of the air inlet pipe 18 by welding and is positioned opposite to it. A bearing is installed inside the fixing sleeve 20 to improve the stability of the rotation of the rotating shaft 24. The rotating shaft 24 passes through the bearing and the air inlet pipe 18. The adjusting plate 30 is fixed on the rotating shaft 24 and located inside the air inlet pipe 18. When the rotating shaft 24 rotates, it drives the adjusting plate 30 to rotate, thereby changing the air volume.
[0037] like Figure 6As shown, the bushing 31 is integrally connected to the middle of the adjusting plate 30. The shaft groove 32 passes through the bushing 31 axially. The rotating shaft 24 passes through the shaft groove 32 of the bushing 31 and is fixed together with the bushing 31 by bolts and nuts. When the rotating shaft 24 rotates, it drives the bushing 31 and the adjusting plate 30 to rotate synchronously.
[0038] During assembly, first place the adjusting plate 30 into the air inlet pipe 18, insert the rotating shaft 24 into the bearing and shaft groove 32 of the fixing sleeve 20, and then fix the bushing 31 and the rotating shaft 24 together by bolts and nuts (e.g., Figure 6 As shown, the bushing 31 has multiple sets of through holes for bolts to pass through, and the rotating shaft 24 also has corresponding through holes.
[0039] The dial 21 is fixed to one side of the fixing sleeve 20 by screws. The dial 21 is engraved with a scale 22 so that the keeper can visually see the size of the channel inside the air inlet pipe 18. The rotating plate 25 is fixed to one end of the rotating shaft 24. When the keeper rotates the rotating plate 25, it will drive the rotating shaft 24 and the adjusting plate 30 to rotate synchronously. The rotation axis of the adjusting plate 30 is perpendicular to the axis of the air inlet pipe 18, thereby adjusting the internal air volume.
[0040] The pointer 26 is integrally connected to one side of the rotating plate 25 and faces the scale 22. The pointer 26 is conical, and its conical part faces the scale 22 to improve the accuracy of reading.
[0041] An arc-shaped groove 23 passes through the dial 21, and a bolt 27 passes through the arc-shaped groove 23 and the rotating plate 25. The bolt 27 is used to lock the rotating plate 25 at an adjusted angle, and the arc-shaped groove 23 ensures that the rotating plate 25 can rotate normally. The bolt 27 includes a bolt head and a bolt root. The bolt head rests against the inner side of the dial 21, and the bolt root passes through the arc-shaped groove 23 and the rotating plate 25. A washer 28 is fitted onto the bolt root and abuts against the rotating plate 25. A nut 29 is screwed onto the bolt root and abuts against one side of the washer 28. The washer 28 is used to increase friction and improve stability after locking. During adjustment, first loosen the nut 29, rotate the rotating plate 25 to the appropriate position, and then tighten the nut 29.
[0042] The air outlet duct 17 is installed on the top plate 14. Air is supplied from the air inlet duct 18 and then discharged from the air outlet duct 17.
[0043] The zookeeper rotates the rotating plate 25, which in turn drives the rotating shaft 24 and the adjusting plate 30 to rotate, thereby adjusting the size of the air inlet pipe 18. Example
[0044] The technical solution of Embodiment 2 is basically the same as that of Embodiment 1, except that the installation method of the cage box 1 and the top plate 14 is different.
[0045] like Figure 7 , 8 As shown, it also includes a plug plate 11, a first groove 12, a first insert post 13, a top plate 14, a second groove 15, and a second insert post 16. In this embodiment, the top of the four sets of side plates of the cage box 1 are provided with the first groove 12 at intervals, and the bottom of the plug plate 11 is integrally connected with the first insert post 13 that cooperates with the first groove 12. In actual assembly, the number of plug plates 11 can be increased according to the size of the experimental mice inside, thereby increasing the height of the cage.
[0046] The second groove 15 is spaced apart on the top of the insert plate 11, and the second insert post 16 is spaced apart on the bottom of the top plate 14 and cooperates with the second groove 15. After the insert plate 11 is assembled, the top plate 14 is inserted into the top of the insert plate 11. The plug-in design is more flexible and easier to assemble.
[0047] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. An IVC animal cage with easily adjustable airflow, characterized in that, It includes: Cage box (1); An air intake assembly includes an air intake pipe (18) fixed to one side of the cage (1) and an adjustment disc (30) rotatably installed inside the air intake pipe (18), wherein the rotation axis of the adjustment disc (30) is perpendicular to the axis of the air intake pipe (18).
2. The IVC animal cage with easily adjustable airflow according to claim 1, characterized in that: It also includes a partition (5) and a collection box (7) inserted into the cage (1) and a mesh (6) penetrating the partition (5), the partition (5) dividing the cage (1) into a feeding area and a defecation area, and the collection box (7) inserted into the defecation area.
3. The IVC animal cage with easily adjustable airflow according to claim 1, characterized in that: The air intake assembly also includes a fixing sleeve (20) fixed to the side wall of the air intake pipe (18), a rotating shaft (24) passing through the fixing sleeve (20) and fixed to the adjusting plate (30), a dial (21) fixed to one side of the fixing sleeve (20), a scale (22) set on the dial (21), a rotating plate (25) fixed to one end of the rotating shaft (24), and a pointer (26) integrally connected to one side of the rotating plate (25) and cooperating with the dial (21).
4. The IVC animal cage with easily adjustable airflow according to claim 3, characterized in that: The air intake assembly also includes an arc-shaped groove (23) penetrating the dial (21), a bolt (27) penetrating the arc-shaped groove (23) and the rotating plate (25), a nut (29) screwed on one side of the bolt (27), and a washer (28) sleeved on the bolt (27), the washer (28) being located between the rotating plate (25) and the bolt (27).
5. An IVC animal cage with easily adjustable airflow according to claim 3, characterized in that: The air intake assembly also includes a bushing (31) integrally connected to the middle of the regulating disc (30) and a shaft groove (32) extending axially through the bushing (31), and the rotating shaft (24) is fixed in the shaft groove (32).
6. An IVC animal cage with easily adjustable airflow according to claim 3, characterized in that: The pointer (26) is conical, with its cone facing the scale (22).
7. An IVC animal cage with easily adjustable airflow according to claim 1, characterized in that: It also includes a plug plate (11) detachably mounted on top of the cage (1) and a top plate (14) detachably mounted on top of the plug plate (11).
8. An IVC animal cage with easily adjustable airflow according to claim 7, characterized in that: It also includes a first groove (12) spaced apart on the top of the cage (1), a first insert (13) spaced apart on the bottom of the insert plate (11) and cooperating with the first groove (12), a second groove (15) spaced apart on the top of the insert plate (11), and a second insert (16) spaced apart on the bottom of the top plate (14) and cooperating with the second groove (15).