Bottom exhaust type cage box for experimental animals
By setting up a pad assembly in the experimental animal cage box to form an exhaust layer and installing an exhaust port on the side of the cage box, the problem of difficult to effectively eliminate ammonia concentration and humidity in the cage box in the prior art is solved, and more efficient air circulation and cage box cleaning is achieved, and operating costs are reduced.
Patent Information
- Application Number
- CN202421415275.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-20
AI Technical Summary
In the prior art, the air supply and exhaust of the experimental animal cage box is on the bedding layer of mice's life, making it difficult to effectively eliminate the ammonia and humidity in the animal excrement in a short period of time, resulting in the ammonia concentration and humidity in the cage box exceeding the standard, and frequent cage replacement is required to increase costs, and it is difficult to clean the cage box.
A bottom exhaust cage box is designed, by setting up a pad assembly between the pad plate and the bottom wall of the cage box, an exhaust layer is formed, and an exhaust port is provided on the side of the cage box, and the air circulation efficiency is improved by using the exhaust layer and the exhaust port to discharge exhaust gas in a timely manner.
It effectively reduces the increase in ammonia concentration and humidity in the cage box, reduces the frequency of cage replacement, reduces operating costs, and simplifies the cleaning process of cage boxes.
Smart Images
Figure CN222997169U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of experimental animal breeding equipment, in particular to a bottom-exhaust cage box for experimental animals. Background Art
[0002] Experimental animals are of great significance to human health and medical development research. The quality of animals participating in experiments and animal breeding equipment are very important links in experimental animal research. Animal breeding cages can allow animals to grow, breed and conduct experiments in a relatively independent space.
[0003] National standard GB14925 "Experimental Animal Environment and Facilities" stipulates that the ammonia concentration in the living environment of experimental animals should be less than or equal to 14 mg / m 3 , and the relative humidity requirement is between 30% - 70%. In the prior art, the air supply and exhaust of animal breeding cage boxes are both above the bedding layer where mice live. However, this form makes the ammonia and humidity in animal excrement need to be dissipated from the bedding before being replaced and discharged. The ammonia and moisture generated after animals excrete in the bedding are difficult to be effectively discharged in the first time of generation, thus accumulating continuously, resulting in the ammonia concentration and humidity in the cage box exceeding the standard, and having to change the cage frequently. In addition, dirty bedding (especially with urine and feces) will adhere to the bottom of the cage box, and a complex treatment method of manual scraping is required, resulting in inconvenient cleaning of the cage box. Therefore, it is urgent for technical personnel to solve the above problems. Summary of the Utility Model
[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problems existing in the prior art, that is, the ammonia and moisture generated after animals excrete in the bedding cannot be effectively discharged in a short time, resulting in a relatively fast increase in the ammonia concentration and humidity in the cage box. Thus, on the one hand, it is necessary to change the cage frequently, increasing the production and operation costs; on the other hand, the cleaning difficulty of the cage box is large.
[0005] To solve the above technical problems, the utility model provides a bottom-exhaust cage box for experimental animals, including:
[0006] A cage box with an opening at the top and an exhaust port on one side of the cage box;
[0007] A bedding plate arranged in the cage box; at least one side of the bedding plate is provided with a lifting belt for taking out the bedding plate from the cage box;
[0008] A padding component connected to the bottom wall of the cage box and padding under the bottom of the bedding plate to form an exhaust layer between the bedding plate and the bottom wall of the cage box; the exhaust layer is communicated with the exhaust port.
[0009] In an embodiment of the utility model, the padding component includes at least two raised limiting strips, and adjacent two raised limiting strips are arranged at intervals.
[0010] In an embodiment of the present utility model, the bottom surface of the cage box is rectangular, and the convex limiting strip extends along the long side of the bottom surface of the cage box.
[0011] In an embodiment of the present utility model, the cage box further includes a water and food trough, the water and food trough is connected to the opening, and a pressing piece is arranged in the water and food trough; one end of the lifting belt is connected to the pressing piece.
[0012] In an embodiment of the present utility model, raised structures protruding from the lower surface of the water and food trough are provided at the four corners of the water and food trough, the water and food trough covers the top of the cage box, and the raised structures abut against the inner wall of the cage box.
[0013] In an embodiment of the present utility model, a plurality of through holes for urine leakage and ventilation are provided on the bedding plate, and the diameter of the through holes is smaller than the diameter of the bedding.
[0014] In an embodiment of the present utility model, the bedding plate is of a rectangular structure, and the lifting belt is arranged on the short side of the bedding plate.
[0015] In an embodiment of the present utility model, there are two lifting belts, and the two lifting belts are symmetrically arranged on the short side of the bedding plate.
[0016] In an embodiment of the present utility model, a baffle formed by upward curling is provided on the side of the bedding plate.
[0017] In an embodiment of the present utility model, the water and food trough is of a grid structure.
[0018] The above technical solutions of the present utility model have the following advantages compared with the prior art:
[0019] For the bottom-exhaust cage box for experimental animals of the present utility model, by arranging a padding component between the bedding plate and the bottom wall of the cage box to form an exhaust layer facilitating air circulation, the waste gas generated during the breeding and / or reproduction process of the experimental animals can be discharged in time; and the arrangement of the exhaust port on the cage box further improves the exhaust efficiency, helps to improve the living environment of the experimental animals, and at the same time can reduce the cage-changing frequency, thereby reducing the operation cost of the experimental animals. On the other hand, the design of the padding component enables the bedding not to directly contact the cage box. Combined with the design of the lifting belt, when it is necessary to replace the bedding or clean the bedding plate, the bedding plate can be effectively cleaned or a new bedding plate can be replaced only by pulling out the bedding plate through the lifting belt, avoiding the large cleaning difficulty of the cage box caused by the accumulation of excrement in the corners of the bottom wall of the cage box, which in turn affects the living environment of the used animals and even the service life of the cage box. Description of the Drawings
[0020] To make the content of the present utility model easier to be clearly understood, the following further detailed description of the present utility model is provided according to specific embodiments of the present utility model in conjunction with the accompanying drawings, wherein:
[0021] Figure 1 It is a schematic structural view of a bottom-exhaust cage box for breeding and raising experimental mice in a preferred embodiment of the present utility model;
[0022] Figure 2 is Figure 1 a side view of the bottom-exhaust cage box for experimental animals;
[0023] Figure 3 is Figure 1 a schematic structural view of a bedding plate in the bottom-exhaust cage box for experimental animals;
[0024] Figure 4 is Figure 1 a schematic structural view of a water and food trough in the bottom-exhaust cage box for experimental animals;
[0025] Figure 5 is Figure 1 a schematic diagram of the working air flow after the bottom-exhaust cage box for experimental animals is installed on a micro-barrier cage rack;
[0026] Explanation of reference numerals in the drawings of the specification: 1. Water and food trough; 2. Protruding structure; 3. Pressing component; 4. Cage box; 5. Pulling belt; 6. Drinking water hole with a cover plate; 7. Exhaust port; 8. Bedding plate; 9. Protruding limit strip. Specific embodiments
[0027] The following further description of the present utility model is provided in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.
[0028] Referring to Figures 1 to 4 as shown, the embodiment of the present utility model provides a bottom-exhaust cage box for experimental animals, including components such as a cage box 4, a bedding plate 8, and a bedding component. Among them, the cage box 4 has a quadrangular prism structure, the bedding plate 8 is located inside the cage box 4, and the bedding component is located between the bedding plate and the cage box.
[0029] In some embodiments, an opening is provided at the top of the cage box 4, and an exhaust port 7 is provided on one side of the cage box 4; a drinking water hole 6 is provided on one side of the cage box 4. In some embodiments, the drinking water hole 6 and the exhaust port 7 are provided on the same side of the cage box 4.
[0030] The bedding plate 8 is horizontally arranged inside the cage box 4; at least one side of the bedding plate 8 is provided with a pulling belt 5, and the end of the pulling belt 5 extends outside the bedding plate 8; bedding is filled on the bedding plate 8.
[0031] A padding component is connected to the bottom wall of the cage box 4 and is disposed at the bottom of the bedding plate 8 to form an exhaust layer between the bedding plate 8 and the bottom wall of the cage box 4. The exhaust layer is communicated with the exhaust port 7.
[0032] In some embodiments, the experimental animals include animals such as mice, rats, rabbits, etc.
[0033] In some embodiments, the exhaust port 7 is a self - closing exhaust port, which can avoid the problem of contamination caused by the intrusion of external gas during the transportation of, for example, germ - free mice.
[0034] In some embodiments, a cover plate is provided above the drinking hole 6, and the cover plate can be closed when necessary to avoid contamination caused by the external environment.
[0035] In some embodiments, the exhaust - type cage box further includes a water and food trough 1, which is connected to the opening of the cage box 4. Wherein, the end of the lifting belt 5 is connected to the cage box 4.
[0036] Specifically, an exhaust layer is formed between the bedding plate 8 and the bottom wall of the cage box 4, so that the bedding does not directly contact the cage box 4. And an exhaust port 7 communicated with the exhaust layer is also provided. In this way, the ammonia and moisture carried by the excreta discharged by the experimental animals into the bedding can be sucked out at a short distance, preventing the further diffusion of ammonia, effectively reducing ammonia emission, prolonging the cage - changing cycle, and improving the cleaning efficiency of dirty bedding. In this embodiment, the bedding plate 8 is provided, so that the excreta are discharged onto the bedding plate 8. When cleaning is required, only the bedding plate 8 needs to be taken out and replaced with a new one, thereby reducing the cleaning difficulty of the cage box 4. In addition, a lifting belt 5 is provided on the bedding plate 8, and the lifting belt 5 can be lifted to conveniently take out the bedding plate 8 when dealing with dirty bedding.
[0037] Further, the padding component includes at least two convex limiting strips 9, and the adjacent two convex limiting strips 9 are arranged at intervals. In this way, the area between the two convex limiting strips 9 and the areas between the convex limiting strips 9 and the cage box 4 and the bedding plate 8 are communicated to form an exhaust layer. The structure is simple, the manufacturing difficulty is low, and the cost is low.
[0038] Further, the bottom surface of the cage box 4 is rectangular, and the convex limiting strips 9 extend along the long side of the bottom surface of the cage box 4. In this way, with the same number of convex limiting strips 9, the bedding plate 8 can be padded more stably.
[0039] In some embodiments, the limiting strip also has a guiding function. By providing a chute matching with the convex limiting strip at the bottom of the bedding plate, on the one hand, the frictional resistance generated when the bedding plate and the convex limiting strip displace relative to each other is reduced, and on the other hand, the risk of the bedding plate tipping over when being moved into or out of the cage box is reduced.
[0040] Furthermore, a pressing member 3 is provided in the water and food trough 1; the lifting belt 5 bypasses the inner wall of the cage box 4 around the top of the cage box 4 and is laid on the outer wall of the cage box 4, and is pressed by the pressing member 3. In this way, the lifting belt 5 can be fixed by the pressing member 3 on the water and food trough 1.
[0041] In some embodiments, the pressing member 3 is preferably provided on one side of the water and food trough 1 close to the side wall of the cage box.
[0042] Furthermore, raised structures 2 protruding from the lower surface of the water and food trough 1 are provided at the four corners of the water and food trough 1. The water and food trough 1 covers the top of the cage box 4, and the raised structures 2 abut against the inner wall of the cage box 4. The four raised structures 2 in this embodiment respectively abut against the four corners of the cage box 4 at the opening to limit the water and food trough 1, so that the water and food trough 1 is stably fixed on the cage box 4, thereby preventing the water and food trough 1 from sliding back and forth and falling off.
[0043] Furthermore, a plurality of through holes for urine leakage and ventilation are arranged in an array on the bedding plate 8, and the diameter of the through holes is smaller than the diameter of the bedding. For example, the diameter of the bedding commonly used for feeding mice is 6-8 or 8-10 mesh, and the through holes adopt a smaller aperture of more than 10 mesh. In this way, urine can leak from the through holes to the bottom of the cage box 4, and the bedding and feces are prevented from leaking from the through holes to the bottom of the cage box 4. Thus, it is convenient to clean by replacing the bedding plate 8, and it is more convenient to use and clean.
[0044] Furthermore, the bedding plate 8 is of a rectangular structure, and the lifting belt 5 is arranged on the short side of the bedding plate 8. Specifically, it is more labor-saving to take out the bedding plate 8 from the cage box 4 by lifting the lifting belt 5.
[0045] Furthermore, there are two lifting belts 5, and the two lifting belts 5 are symmetrically arranged on the short side of the bedding plate 8. Specifically, this embodiment facilitates the rapid removal of the bedding plate 8.
[0046] Furthermore, a baffle formed by upward curling is provided on the side of the bedding plate 8. The lifting belt 5 can be fixed on the outer wall of the baffle. For example, the lifting belt 5 is fixed on the outer wall of the baffle by glue. Another example is that the lifting belt 5 is fixed on the outer wall of the baffle by screws. Specifically, the baffle in this embodiment can concentrate the bedding on the top of the bedding plate 8, and the height of the baffle has no specific limit, and it can even be flush with the upper edge of the cage box, preventing the bedding from leaking into the exhaust layer and reducing the cleaning difficulty of the cage box 4.
[0047] Furthermore, the water and food trough 1 is of a grid-like structure.
[0048] During use, place the bedding plate 8 with the lifting belt 5 into the cage box 4, and add an appropriate amount of bedding to the bedding plate 8. Then place the experimental animal into the cage box 4, place the water and food trough 1 on the top of the cage box 4, and make the convex structures 2 at the four corners all placed into the cage box 4, so that the water and food trough 1 can be limited and fixed in the cage box 4; at the same time, make the pressing member 3 provided on the water and food trough 1 press the lifting belt 5. Refer to Figure 5 , during the period when the experimental animal lives in the exhaust-type cage box, in cooperation with the air supply and suction device, fresh air sequentially passes through the water and food trough, bedding, and the through holes on the bedding plate from the top of the exhaust-type cage box and enters the exhaust layer. At the same time, the suction device applies suction to the air in the exhaust layer through the exhaust port 7, further ensuring that the ammonia and moisture carried by the excreta discharged by the experimental animal into the bedding will be sucked out through the exhaust layer from the exhaust port 7, so as to achieve the effect of effectively purifying the air in the exhaust-type cage box.
[0049] When cleaning the cage box 4, directly remove the water and food trough 1, then transfer the experimental animal to another set of clean cage boxes 4, and take out the bedding plate 8 from the cage box 4 through the lifting belt 5 and replace it with a new bedding plate 8.
[0050] This application is for a bottom-exhaust type cage box 4 suitable for use in a micro-barrier cage rack.
[0051] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.
Claims
1. A bottom exhaust cage for experimental animals, characterized in that: include: A cage box, with an opening on the top and an exhaust port on one side of the cage box; A padding plate, arranged in the cage box; At least one side of the bedding plate is provided with a lifting strap for taking the bedding plate out of the cage box; A padding assembly connected to the bottom wall of the cage box; and padding at the bottom of the padding plate, so that an exhaust layer is formed between the padding plate and the bottom wall of the cage box; the exhaust layer is connected to the exhaust port; The pad plate is provided with a plurality of through holes.
2. The bottom exhaust cage for experimental animals according to claim 1, characterized in that: The cushioning assembly includes at least two raised limiting strips, and two adjacent raised limiting strips are arranged at intervals.
3. The bottom exhaust cage for experimental animals according to claim 2, characterized in that: The bottom surface of the cage box is rectangular, and the raised limiting strip extends along the long side of the bottom surface of the cage box.
4. The bottom exhaust cage for experimental animals according to claim 1, characterized in that: The cage box also includes a water and food trough, which is connected to the opening and in which a pressing piece is provided; one end of the lifting belt is connected to the pressing piece.
5. The bottom exhaust cage for experimental animals according to claim 4, characterized in that: The four corners of the water and food trough are all provided with a protruding structure protruding from the lower surface of the water and food trough, the water and food trough covers the top of the cage box, and the protruding structure abuts against the inner wall of the cage box.
6. The bottom exhaust cage for experimental animals according to claim 1, characterized in that: The diameter of the through hole is smaller than the diameter of the gasket.
7. The bottom exhaust cage for experimental animals according to claim 1, characterized in that: The cushioning plate is a rectangular structure, and the lifting belt is arranged on the short side of the cushioning plate.
8. The bottom exhaust cage for experimental animals according to claim 7, characterized in that: There are two lifting belts, and the two lifting belts are symmetrically arranged on the short sides of the padding plate.
9. The bottom exhaust cage for experimental animals according to claim 1, characterized in that: The side edge of the cushioning plate is provided with a baffle formed by curling upward.
10. The bottom exhaust cage for experimental animals according to claim 4, characterized in that: The water and food trough is a grid structure.