A sub-throw type rodent breeding cage box
The lightweight PP plastic material and clamping mechanism of the disposable rodent cage design solve the problems of high cage weight, cumbersome operation, and cross-contamination, achieving efficient and safe feeding management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG JINGQI BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-23
Smart Images

Figure CN224386443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of barrier environment experimental animal technology, specifically a secondary-displacement rodent rearing cage. Background Technology
[0002] In barrier-enclosed laboratory animal facilities, rodent breeding cages consist of a single-layer cage body with an inner cavity, similar to a shoebox. The experimental animals are cared for within this cage body, requiring the provision of feed, bedding, water, toys, and other materials to meet their nutritional needs.
[0003] Existing breeding cages have several shortcomings in practical applications: 1. Most existing cages are made of polypropylene, either transparent or opaque (milky white or other colors). To increase the cage's lifespan, a certain thickness is generally required, resulting in higher costs and greater weight. The higher cost is mainly due to the use of more raw materials. The greater weight also leads to new problems, such as increased workload for operators, reduced work efficiency, and a significantly increased probability of personnel dropping or breaking the cages during handling, further damaging the cages and reducing their lifespan; 2. Existing breeding cages use a weekly or bi-weekly bedding replacement system, requiring the collection, disposal, and treatment of used bedding every week or two, along with cleaning, washing, and sterilization of the cages. This system consumes a significant amount of manual labor and lacks alternative machinery. The bedding replacement process generates a large amount of dust, which can be a potential allergen for operators, impacting their health. 3. After collecting and processing the dirty bedding, the original breeding cages also pose a significant biosafety risk during the cleaning and disinfection process, with the possibility of cross-contamination. Therefore, they do not meet the current needs. In response, we propose a disposable rodent breeding cage. Utility Model Content
[0004] The purpose of this invention is to provide a disposable rodent rearing cage to solve the problem of how to improve the daily feeding efficiency of animals, while minimizing employee operation and working hours, and avoiding secondary pollution during the cage cleaning and disinfection process.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a secondary disposal rodent rearing cage, comprising a cage, the cage having an inner cavity, a secondary disposal box body installed in the inner cavity, and the secondary disposal box body being perpendicularly inserted and positioned into the cage, the upper end face of the secondary disposal box body having an integrally formed flange for separating the secondary disposal box body from the cage, and a clamping mechanism provided on one side of the cage for reinforcing the installation of the secondary disposal box body.
[0006] Preferably, the main body of the secondary disposal box is made of PP plastic.
[0007] Preferably, the thickness of the secondary throwing box body is one-tenth of the thickness of the cage box, and the size of the secondary throwing box body is adapted to the size of the cage box.
[0008] Preferably, the clamping mechanism includes a fixed seat fixedly disposed on one side of the cage box, the fixed seat having a limiting groove inside, a positioning block being slidably installed inside the limiting groove, and a positioning groove being disposed on one side of the secondary throwing box body, with the positioning block and the positioning groove being inserted into each other.
[0009] Preferably, a handle is provided on the outer side of the fixed base, and a movable rod extending into the limiting groove is fixedly provided on one side of the handle. The movable rod is slidably engaged with the fixed base, and the inner end of the movable rod is fixed to the positioning block. A spring is installed at the end of the movable rod located outside the fixed base.
[0010] Preferably, detachable suction cups are installed at the four corners of the bottom of the cage.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model uses PP plastic material, has the same size as existing cages, and is only 1 / 10 the thickness of existing cages, significantly reducing weight and cost. It can be placed inside existing cages during use. When changing bedding, the dirty bedding and the disposable cage are processed together and replaced with new bedding. This not only reduces the workload of animal keepers and labor hours, improving daily animal husbandry efficiency, but also greatly avoids cross-contamination between cages during bedding and cleaning, indirectly improving animal quality. Furthermore, by reducing the cleaning and disinfection process, it also reduces related biosafety risks and the potential health impact of dirty bedding dust on operators.
[0013] 2. This utility model features a clamping mechanism on one side of the cage. When replacing the secondary disposal box, simply pull the handle. The movable rod will retract the positioning block from the positioning groove of the secondary disposal box into the limiting groove, thus restricting contact with the secondary disposal box. Then, the user can simply pull the flange of the secondary disposal box to separate it. During installation, similarly, after pulling the handle, the secondary disposal box is placed vertically. After releasing the handle, the movable rod will move the positioning block into the positioning groove of the secondary disposal box under the reset action of the spring. This makes the replacement and installation of the secondary disposal box more convenient and efficient, reduces the tedious steps of manual operation, further reduces the operational burden of the breeders, improves work efficiency, and also avoids problems such as cage damage or unstable installation of the secondary disposal box due to improper operation.
[0014] 3. By installing suction cups at the four corners of the bottom of the cage, this utility model can make the cage more stable on the flat surface, effectively reducing the shaking, displacement or even tipping of the cage caused by external impact, human operation or animal activity, reducing the risk of the cage falling and being damaged, and ensuring the safety of the cage, the internal disposal box and rodents; at the same time, the stable placement can also provide a more stable habitat for animals, reduce the stress response caused by the instability of the cage, and is conducive to the healthy breeding of laboratory animals. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present utility model;
[0016] Figure 2 This is a cross-sectional view of the internal structure of this utility model;
[0017] Figure 3 This is another perspective view of the present invention;
[0018] Figure 4 This is an exploded view of the present invention;
[0019] In the diagram: 1. Cage box; 2. Secondary throwing box body; 3. Flange; 4. Clamping mechanism; 5. Inner cavity; 6. Fixed seat; 7. Limiting groove; 8. Movable rod; 9. Handle; 10. Spring; 11. Positioning block; 12. Positioning groove; 13. Suction cup. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Please see Figure 1-4The present invention provides an embodiment of a secondary-disposable rodent rearing cage, comprising a cage 1, an inner cavity 5 inside the cage 1, a secondary-disposable box body 2 installed in the inner cavity 5, and the secondary-disposable box body 2 being vertically inserted and positioned into the cage 1, the upper end face of the secondary-disposable box body 2 being provided with an integrally formed flange 3 for separating the secondary-disposable box body 2 from the cage 1, and a clamping mechanism 4 being provided on one side of the cage 1 for reinforcing the installation of the secondary-disposable box body 2;
[0022] The secondary disposal box body 2 is installed in the inner cavity 5 of the cage box 1 by vertical insertion. The flange 3 provides a force point for separation operation, and the clamping mechanism 4 further reinforces the secondary disposal box body 2, ensuring its stable placement in the cage box 1. Vertical insertion facilitates quick positioning and installation, the flange 3 simplifies the separation process, and the clamping mechanism 4 improves the installation stability of the secondary disposal box body 2. The overall structure ensures that the secondary disposal box is not easily displaced during the rearing process.
[0023] Furthermore, the main body 2 of the secondary disposal box is made of PP plastic. The thickness of the main body 2 is one-tenth the thickness of the cage 1. The dimensions of the main body 2 are compatible with those of the cage 1. The PP plastic material ensures the basic structural strength of the main body 2, while the thickness design reduces the use of raw materials. The dimensional compatibility allows it to be precisely placed inside the cage 1, meeting the space requirements for rodent rearing. The PP material meets the hygiene requirements for laboratory animal rearing. Its thickness, only one-tenth that of the cage 1, significantly reduces weight and cost. The dimensional compatibility ensures compatibility with existing cages, eliminating the need to replace existing cage facilities. Simultaneously, the lightweight design reduces the burden on operators and lowers the risk of damage from drops.
[0024] Please see Figure 1 , Figure 2 and Figure 4The clamping mechanism 4 includes a fixed base 6 fixedly mounted on one side of the cage box 1. The fixed base 6 has a limiting groove 7 inside, and a positioning block 11 is slidably installed inside the limiting groove 7. A positioning groove 12 is provided on one side of the secondary disposal box body 2, and the positioning block 11 is inserted into the positioning groove 12. A handle 9 is provided on the outside of the fixed base 6. A movable rod 8 extending into the limiting groove 7 is fixedly provided on one side of the handle 9. The movable rod 8 is slidably engaged with the fixed base 6, and the inner end of the movable rod 8 is fixed to the positioning block 11. A spring 10 is installed at the end of the movable rod 8 located outside the fixed base 6. When replacing the secondary disposal box body 2, pulling the handle 9 moves the movable rod 8 and the positioning block 11, and the positioning block 11 retracts from the positioning groove 12 to the limiting groove 7, releasing the restriction on the secondary disposal box. During installation, pulling the handle 9 retracts the positioning block 11. After the secondary disposal box is placed in, the handle 9 is released, and the spring 10 returns to its original position, pushing the movable rod 8 so that the positioning block 11 is inserted into the positioning groove 12 to complete the fixation. The mechanical structure enables quick loading and unloading of the secondary disposal box, making operation simple and labor-saving, and reducing labor time consumption; the cooperation between the positioning block and the positioning groove ensures stable installation and prevents the secondary disposal box from loosening during feeding; the automatic spring reset design improves operating efficiency and reduces the risk of equipment damage or cross-contamination caused by improper operation.
[0025] Please see Figure 3 The cage 1 has detachable suction cups 13 installed at the four corners of its bottom. The suction cups 13 adhere to the placement surface by squeezing out air to create negative pressure, thus firmly fixing the cage 1 in place. To remove it, external force is applied to break the negative pressure. This enhances the stability of the cage 1, reducing shaking and tipping caused by collisions, animal activity, or handling, and lowering the risk of damage to the cage and its internal disposal box. It provides a stable habitat for animals, reducing stress responses. The detachable design allows for convenient installation based on usage scenarios, adapting to different placement needs without adding excessive costs, thus improving the flexibility of equipment use.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A sub-throw type rodent cage box comprising a cage box (1), characterized in that: The cage (1) has an inner cavity (5) inside, and a secondary throwing box body (2) is installed in the inner cavity (5). The secondary throwing box body (2) is perpendicularly inserted and limited to the cage (1). The upper end face of the secondary throwing box body (2) is provided with an integrally formed flange (3) for separating the secondary throwing box body (2) from the cage (1). A clamping mechanism (4) is provided on one side of the cage (1) for reinforcing the installation of the secondary throwing box body (2).
2. A sub-throw type rodent cage according to claim 1, wherein: The main body (2) of the secondary throwing box is made of PP plastic.
3. A sub-throw type rodent cage according to claim 1, wherein: The thickness of the secondary throwing box body (2) is one-tenth the thickness of the cage box (1), and the size of the secondary throwing box body (2) is adapted to the size of the cage box (1).
4. A sub-throw type rodent cage according to claim 1, wherein: The clamping mechanism (4) includes a fixed seat (6) fixedly disposed on one side of the cage (1), a limiting groove (7) is provided inside the fixed seat (6), a positioning block (11) is slidably installed inside the limiting groove (7), a positioning groove (12) is provided on one side of the secondary throwing box body (2), and the positioning block (11) and the positioning groove (12) are inserted into each other.
5. A sub-throw type rodent cage according to claim 4, wherein: A handle (9) is provided on the outside of the fixed seat (6). A movable rod (8) extending into the limiting groove (7) is fixed on one side of the handle (9). The movable rod (8) slides with the fixed seat (6), and the inner end of the movable rod (8) is fixed with the positioning block (11). A spring (10) is installed at the end of the movable rod (8) located outside the fixed seat (6).
6. The second-hand rodent rearing cage according to claim 1, characterized in that: The cage (1) is equipped with detachable suction cups (13) at the four corners of its bottom.