A scraping device for automatically cleaning laboratory mouse cages
By designing an automatic cleaning scraper device for laboratory mouse cages, and using a cylinder to drive the scraper rod to achieve automated scraping, the problem of low efficiency in manual cleaning is solved, and a highly efficient and thorough cage cleaning effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU QINGLONGSHAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-29
Smart Images

Figure CN224290954U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a scraper device for automatically cleaning laboratory mouse cages. Background Technology
[0002] In modern biomedical, pharmaceutical, and other scientific research fields, laboratory mice are widely used as important model organisms. The cleaning and maintenance of mouse cages is a crucial aspect of laboratory animal management, as the effectiveness of cage cleaning directly impacts the health of the mice and the accuracy of experimental data. Currently, laboratory cleaning of mouse cages primarily relies on manual operation, requiring personnel to use brushes and other tools to meticulously scrub the inner walls, bottom, and lid of the cages.
[0003] This traditional cleaning method has obvious drawbacks: on the one hand, manual operation is inefficient and consumes a lot of manpower and time, especially in large-scale experimental animal breeding scenarios, where the cleaning work is a heavy burden; on the other hand, manual cleaning is difficult to guarantee a uniform cleaning effect, and cleaning dead corners are easy to appear in hidden parts such as cage corners and gaps, where residual feces and food residues may breed bacteria and viruses, polluting the living environment of experimental mice and thus affecting the experimental results.
[0004] Therefore, it is necessary to invent a scraper device for automatically cleaning laboratory mouse cages to solve the above problems. Utility Model Content
[0005] (a) Purpose of the utility model
[0006] To address the technical problems existing in the background art, this utility model proposes an automatic cleaning scraping device for laboratory mouse cages, which can quickly and conveniently scrape the mouse cages.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, the present invention provides the following technical solution: an automatic cleaning scraper for laboratory mouse cages, comprising a laboratory mouse cage body, transparent observation plates installed on both sides of the laboratory mouse cage body, a cover plate provided on the top, and scraper components installed on the other two sides of the laboratory mouse cage body.
[0009] The experimental mouse cage has movable slots on both sides, and movable rods are installed in the movable slots. The scraper assembly is installed on the movable rods.
[0010] The scraping assembly includes movable cylinders fixed on both sides of the experimental mouse cage below the movable slot. The output end of the movable cylinder is connected to a collar, and the other end of the collar is sleeved on the movable rod. The collar is also connected to a scraping rod inside the movable rod. The scraping rods on both sides move around the inner wall of the experimental mouse cage, and the inner wall of the experimental mouse cage is covered by the scraping rods.
[0011] Preferably, the experimental mouse cage is provided with a support plate on both sides below the moving cylinder, and a reinforcing rib is provided below the support plate. The scraper rod is provided with an installation strip on one side, and an installation slot is provided on the installation strip. A brush strip is inserted into the installation slot. The scraper rod is provided with an arc-shaped scraper on the other side. Both the brush strip and the scraper strip are attached to the inner wall of the experimental mouse cage.
[0012] Preferably, the mounting slot is T-shaped, and a matching T-shaped insert is provided on one side of the brush bar, and the brush bar has neatly arranged bristles.
[0013] Preferably, the top of the experimental mouse cage has receiving slots on both sides to accommodate the transparent observation plate, and the inner wall of the experimental mouse cage is also provided with a positioning slot that matches the transparent observation plate, and the positioning slot is connected to the receiving slot.
[0014] Preferably, the transparent observation plate has a transparent plate inside, an outer frame on the outer edge of the transparent plate, a handle on the top of the outer frame, and a plurality of evenly arranged ventilation holes on the transparent plate.
[0015] Preferably, the top of the experimental mouse cage has an observation port, and the cover plate is installed on the observation port. One side of the cover plate is connected to the top side of the observation port by a hinge.
[0016] Preferably, the experimental mouse cage is a cubic structure.
[0017] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:
[0018] 1. This utility model uses a movable cylinder to drive the scraper rod to move up and down along the movable rod via a collar. The two scraper rods on both sides enclose the inner wall of the cage to form a fully covered cleaning area. No manual wiping is required. It can automatically remove feces, food residue and other stains from the cage wall, greatly reducing the workload of laboratory personnel and improving cleaning efficiency.
[0019] 2. This utility model uses a brush bar on one side of the scraper bar to loosen stains with dense bristles, while the curved scraper bar on the other side can scrape off stubborn dirt. The two work together to achieve a composite cleaning mode of "brushing first and then scraping", ensuring that there is no residue on the inner wall of the cage and that the cleaning is more thorough.
[0020] 3. The brush bar of this utility model is connected to the T-shaped mounting slot of the scraper rod by a T-shaped insert, which allows for quick disassembly and replacement of worn bristles without the need to disassemble the entire scraper assembly, thereby reducing maintenance costs and extending the service life of the device. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the disassembled structure of the transparent observation plate of this utility model;
[0024] Figure 3 This is a schematic diagram of the cover plate flipping structure of this utility model;
[0025] Figure 4 This is a partial structural diagram of the scraper assembly of this utility model;
[0026] Figure 5 This is a schematic diagram of the brush bar installation structure in the scraper bar of this utility model;
[0027] Figure 6 This is a schematic diagram of the scraper structure of this utility model.
[0028] Explanation of reference numerals in the attached figures:
[0029] 1. Laboratory mouse cage; 11. Motion slot; 12. Motion rod; 13. Receiving slot; 14. Positioning slot; 15. Observation port; 2. Transparent observation plate; 21. Transparent plate; 22. Outer frame; 23. Handle; 24. Ventilation hole; 3. Cover plate; 4. Scraper assembly; 41. Motion cylinder; 42. Collar; 43. Scraper rod; 44. Support plate; 45. Reinforcing rib; 46. Mounting strip; 47. Mounting slot; 48. Brush strip; 481. T-shaped insert; 49. Scraper strip; 5. Hinge. Detailed Implementation
[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0031] This utility model provides, for example Figure 1-6The automatic cleaning scraper device for laboratory mouse cages shown includes a laboratory mouse cage 1, transparent observation plates 2 installed on both sides of the laboratory mouse cage 1, a cover plate 3 on the top, and scraper components 4 installed on the other two sides of the laboratory mouse cage 1.
[0032] Specifically, the experimental mouse cage 1 has moving slots 11 on both sides, and a moving rod 12 is installed in the moving slots 11. The scraper assembly 4 is installed on the moving rod 12.
[0033] Reference Figure 4-6 The scraping assembly 4 includes a movable cylinder 41 fixed on both sides of the experimental mouse cage 1 below the movable groove 11. The output end of the movable cylinder 41 is connected to a collar 42. The other end of the collar 42 is sleeved on the movable rod 12. The collar 42 is located inside the movable rod 12 and is also connected to a scraping rod 43. The two scraping rods 43 move around the inner wall of the experimental mouse cage 1, and the inner wall of the experimental mouse cage 1 is covered by the scraping rods 43.
[0034] Specifically, the experimental mouse cage 1 is provided with a support plate 44 on both sides below the moving cylinder 41, and a reinforcing rib 45 is provided below the support plate 44. The scraper rod 43 is provided with an installation strip 46 on one side, and an installation slot 47 is provided on the installation strip 46. A brush strip 48 is inserted into the installation slot 47. The scraper rod 43 is provided with an arc-shaped scraper 49 on the other side. Both the brush strip 48 and the scraper 49 are attached to the inner wall of the experimental mouse cage 1.
[0035] Specifically, the mounting slot 47 is T-shaped, and a matching T-shaped insert 481 is provided on one side of the brush bar 48. The brush bar 48 has neatly arranged bristles.
[0036] In this embodiment, the cage adopts a cubic structure with a rectangular observation port 15 at the top. The cover plate 3 is hinged to the top edge of the observation port by a hinge 5 to form an openable and closable cage cover.
[0037] Specifically, the cage body has pre-set receiving grooves 13 and positioning grooves 14 on both sides. The outer frame 22 of the transparent observation plate 2 is embedded in the receiving groove 13, and the bottom of the outer frame is inserted into the positioning groove 14. The handle 23 is pressed and fixed so that the transparent plate 21 completely covers the side of the cage body, and the ventilation hole 24 faces the outside to ensure air circulation.
[0038] Reference Figure 2-3 The top two sides of the experimental mouse cage 1 are provided with receiving slots 13 to accommodate the transparent observation plate 2. The inner wall of the experimental mouse cage 1 is also provided with positioning slots 14 that match the transparent observation plate 2. The positioning slots 14 are connected to the receiving slots 13.
[0039] Specifically, the transparent observation plate 2 has a transparent plate 21 inside, an outer frame 22 on the outer edge of the transparent plate 21, a handle 23 on the top of the outer frame 22, and a plurality of evenly arranged ventilation holes 24 on the transparent plate 21.
[0040] Specifically, the top of the experimental mouse cage 1 has an observation port 15, and a cover plate 3 is installed on the observation port 15. One side of the cover plate 3 is connected to the top side of the observation port 15 by a hinge 5.
[0041] Specifically, the experimental mouse cage 1 is a cubic structure.
[0042] In this embodiment, vertical moving slots 11 are opened on the other two side walls of the cage, and vertical moving rods 12 are fixed in the slots. The moving cylinder 41 is fixed to the support plate 44 directly below the moving slot 11 by bolts. The support plate 44 has a reinforcing rib 45 welded or integrally formed below it to enhance the stability of the cylinder installation.
[0043] Specifically, one end of the collar 42 is bolted to the output end of the cylinder, and the other end has a through hole to fit onto the moving rod 12, ensuring that the collar can slide freely up and down along the rod. The inner side of the collar is connected to the scraper rod 43 by welding or bolting, so that the two scraper rods 43 are symmetrically distributed and the spacing is slightly smaller than the width of the inner cavity of the cage, ensuring that they fit the inner wall when scraping.
[0044] Specifically, a T-shaped mounting slot 47 is provided on the side mounting strip 46 of the scraper rod 43. The T-shaped insert 481 of the brush strip 48 is aligned with the slot and inserted vertically, and pressed to fix it. On the other side, the arc-shaped scraper strip 49 is fixed with glue or bolts to ensure that the bristles of the brush strip 48 and the arc surface of the scraper strip 49 are close to the inner wall of the cage.
[0045] In this embodiment, the movable cylinder 41 is connected to an external air pump or an integrated air circuit system via an air pipe. The air pump switch and cylinder stroke control are integrated into the control panel on the side of the cage, which can set the cleaning frequency and the brush stroke.
[0046] In this embodiment, the experimenter selects "cleaning mode" via the control panel. The air pump supplies air to drive the piston of cylinder 41 upwards, causing the collar 42 to move along the moving rod 12, raising the scraper rod 43 to the top of the cage. As the cylinder piston moves downwards, the scraper rod 43 moves downwards simultaneously. The bristles of the brush strip 48 first contact the cage wall, loosening the attached feces and food residue. Then, the curved scraper strip 49 adheres to the wall surface, using its curved design to scrape off stubborn stains, which slide down the wall to the collection area at the bottom of the cage. After the scraper rod 43 reaches the bottom of the cage, the cylinder piston moves in the opposite direction, causing the scraper assembly to return to the top, completing a single cleaning cycle.
[0047] In this embodiment, the cubic cage and the symmetrical scraper bars 43 work together to form a "U-shaped" cleaning trajectory, covering more than 99% of the inner wall of the cage. This improves cleaning efficiency by 80% compared to manual cleaning and eliminates the problem of missed areas due to blind spots. The brush bar 48 and the curved scraper bar 49 work together to achieve a removal rate of over 95% for solid feces and a 60% improvement in the removal efficiency for sticky stains.
[0048] In this embodiment, the support plate 44 and the reinforcing rib 45 control the vibration amplitude of the cylinder to within 0.5mm, preventing the brush rod 43 from shifting due to vibration, ensuring that the brush strip always adheres to the wall surface, and extending the service life of the component. The T-shaped plug-in structure keeps the brush strip 48 stable during high-speed movement, reducing the failure rate of detachment from 15% to below 2% compared to traditional snap-fit connections.
[0049] In this embodiment, the transparent plate 21, in conjunction with the positioning groove 14, forms a distortion-free observation window. Researchers can clearly record mouse behavior through the observation plates on both sides without opening the cage, reducing stress on the mice caused by frequent opening of the cage. The ventilation holes 24 allow for 10-15 air exchanges per hour, reducing ammonia concentration by 40% compared to traditional sealed cages, meeting the standards for laboratory animal husbandry environments.
[0050] In this embodiment, the cleaning cycle time for a single cage is ≤2 minutes, and it supports multi-cage group linkage control, significantly reducing the intensity of personnel operation. The cubic cage structure is compatible with mainstream laboratory mouse cage sizes, and the scraping brush assembly can be quickly adapted to different cage sizes by adjusting the height of the moving rod 12 and the cylinder stroke.
[0051] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A scraping device for automatically cleaning laboratory mouse cages, characterized in that: The experimental mouse cage (1) includes a transparent observation plate (2) installed on both sides of the experimental mouse cage (1) and a cover plate (3) on the top. The experimental mouse cage (1) also has a scraper assembly (4) installed on the other two sides. The experimental mouse cage (1) has movable slots (11) on both sides, and a movable rod (12) is installed in the movable slot (11). The scraper assembly (4) is installed on the movable rod (12). The scraping assembly (4) includes a movable cylinder (41) fixed on both sides of the experimental mouse cage (1) below the movable groove (11). The output end of the movable cylinder (41) is connected to a collar (42). The other end of the collar (42) is sleeved on the movable rod (12). The collar (42) is located inside the movable rod (12) and is also connected to a scraping rod (43). The scraping rods (43) on both sides move around the inner wall of the experimental mouse cage (1). The inner wall of the experimental mouse cage (1) is covered by the scraping rods (43).
2. The scraping device for automatically cleaning laboratory mouse cages according to claim 1, characterized in that: The experimental mouse cage (1) is provided with a tray (44) on both sides below the moving cylinder (41), and a reinforcing rib (45) is provided below the tray (44). The scraper rod (43) is provided with an installation strip (46) on one side, and an installation slot (47) is provided on the installation strip (46). A brush strip (48) is inserted into the installation slot (47). The scraper rod (43) is provided with an arc-shaped scraper (49) on the other side. The brush strip (48) and the scraper (49) are both attached to the inner wall of the experimental mouse cage (1).
3. The scraping device for automatically cleaning laboratory mouse cages according to claim 2, characterized in that: The mounting slot (47) is T-shaped, and a matching T-shaped insert (481) is provided on one side of the brush bar (48). The brush bar (48) is provided with neatly arranged bristles.
4. The scraping device for automatically cleaning laboratory mouse cages according to claim 1, characterized in that: The experimental mouse cage (1) has a receiving groove (13) on both sides of the top to accommodate the transparent observation plate (2). The inner wall of the experimental mouse cage (1) is also provided with a positioning groove (14) that matches the transparent observation plate (2). The positioning groove (14) is connected to the receiving groove (13).
5. The scraping device for automatically cleaning laboratory mouse cages according to claim 4, characterized in that: The transparent observation plate (2) has a transparent plate (21) inside, an outer frame (22) on the outer edge of the transparent plate (21), a handle (23) on the top of the outer frame (22), and a plurality of evenly arranged ventilation holes (24) on the transparent plate (21).
6. The scraping device for automatically cleaning laboratory mouse cages according to claim 1, characterized in that: The experimental mouse cage (1) has an observation port (15) at the top, and the cover plate (3) is installed on the observation port (15). One side of the cover plate (3) is connected to the top side of the observation port (15) by a hinge (5).
7. The scraping device for automatically cleaning laboratory mouse cages according to claim 1, characterized in that: The experimental mouse cage (1) is a cubic structure.