Low pressure double cage mouse feeding device

By designing a low-pressure dual-chamber rat rearing device, the problem of unstable environmental pressure during pressurization or depressurization in traditional devices was solved, achieving constant air pressure inside the chamber and accurate experimental data.

CN117581801BActive Publication Date: 2025-11-04THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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Patent Information

Application Number
CN202311451948.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-03
Publication Date
2025-11-04
Estimated Expiration
2043-11-03

AI Technical Summary

Technical Problem

Traditional rat breeding equipment makes it difficult to maintain a constant pressure in the breeding environment during pressurized or depressurized breeding processes, leading to deviations in experimental data.

Method used

A low-pressure dual-compartment rat breeding device is designed, comprising a breeding compartment, an excretion compartment, and a retrieval compartment. Through a sealing mechanism and an air pressure regulation system, the air pressure inside the compartment is kept constant, enabling the safe retrieval and release of rats and the convenient cleaning of excrement.

Benefits of technology

Maintaining a constant air pressure inside the breeding chamber when handling and cleaning rats or their excrement improves the accuracy of experimental data and ease of operation.

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Abstract

The application provides a low-pressure double-compartment mouse feeding device, which comprises a box body, a breeding cabin, an excretion cabin and a taking and placing cabin are arranged in the box body, and a pullable collection box is arranged in the excretion cabin. A partition plate is arranged between the breeding cabin and the taking and placing cabin, and a taking and placing hole is formed in the partition plate. A first sealing mechanism is arranged in the breeding cabin, and the taking and placing hole is sealed by the first sealing mechanism. A supporting frame is arranged between the breeding cabin and the excretion cabin, and a plurality of groups of supporting nets are arranged on the supporting frame. A second sealing mechanism is arranged in the excretion cabin, and the supporting nets are closed and shielded by the second sealing mechanism. A shielding assembly is further arranged on the box body, and the upper opening of the box body is closed and shielded by the shielding assembly. In the process of pressurizing or depressurizing the mouse by using the feeding device, the pressure of the breeding environment can be kept constant in the process of taking the organs of the mouse or cleaning the excrement of the mouse, so that the accuracy of experimental data is improved.
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Description

Technical Field

[0001] This invention specifically relates to a low-pressure dual-compartment rat feeding device. Background Technology

[0002] Because the mouse genome is highly similar to that of humans, many diseases that are difficult to cure in humans can be found to have similar traits in mice, allowing for the discovery of therapeutic genes through experimentation. Therefore, many medical research and clinical trials are conducted using mice. Currently, to simulate deep-sea environments, high interstitial pressure within the body, or high-altitude environments, it is necessary to adjust the air pressure in the mouse rearing space to obtain more suitable experimental data.

[0003] For example, Chinese invention patent application number 202210863864.0 provides an experimental chamber for simulating damage to rats caused by low-pressure hypoxia at high altitudes. This device can quickly and accurately simulate animal models of acute and chronic altitude sickness symptoms under low-pressure hypoxia at high altitudes by controlling the air pressure inside the chamber, and the symptoms meet the standards for clinical research. However, traditional rat breeding devices, during the pressurization or depressurization of rat breeding, make it inconvenient to maintain a constant breeding environment pressure while collecting rat organs or cleaning rat excrement, thus leading to deviations in experimental data. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a low-pressure dual-compartment rat breeding device to solve the technical problem mentioned in the background art: traditional rat breeding devices, during the process of pressurizing or depressurizing rats, make it inconvenient to collect rat organs or clean rat excrement while maintaining a constant breeding environment pressure, thus leading to deviations in experimental data.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-pressure dual-compartment rat rearing device, comprising:

[0006] The box body contains a breeding compartment, an excretion compartment, and a retrieval compartment, and the excretion compartment contains a pull-out collection box.

[0007] A partition is provided between the breeding compartment and the retrieval compartment, and the partition is provided with retrieval holes;

[0008] A first sealing mechanism is installed inside the breeding chamber to seal the take-up and put-out holes;

[0009] A support frame is provided between the breeding compartment and the excretion compartment, and the support frame is provided with multiple sets of spaced support nets;

[0010] A second sealing mechanism, installed inside the discharge chamber, provides a sealed enclosure for the support net; and

[0011] A shielding component is disposed on the box body to seal and shield the upper opening of the box body.

[0012] In a preferred embodiment, the breeding chamber is provided with a first communicating interface, the retrieval chamber is provided with a second communicating interface, and the excretion chamber is provided with a third communicating interface. The first, second, and third interfaces are all used to connect to an air pressure regulating pump, and the breeding chamber, the excretion chamber, and the retrieval chamber are all provided with air pressure displays.

[0013] In a preferred embodiment, the aquaculture chamber is provided with a fourth communicating interface for connecting a ventilation device.

[0014] In a preferred embodiment, the first sealing mechanism includes:

[0015] A sealing plug is installed inside the aquaculture chamber;

[0016] A first threaded seat is disposed inside the culture chamber; and

[0017] The first drive rod has one end connected to the sealing plug and the other end passing through the breeding chamber and extending outward. The first drive rod is provided with a first threaded post on the same axis, which passes through the first threaded seat and is screwed to it.

[0018] In a preferred embodiment, the second sealing mechanism includes:

[0019] A connecting frame is installed inside the discharge chamber;

[0020] Multiple sets of baffles are provided and spaced apart on the connecting frame. Each baffle is equipped with a sealing gasket. Multiple sets of spaced-apart storage slots are provided at the bottom of the support frame, and the sealing gaskets are respectively disposed within each of the multiple sets of storage slots.

[0021] A transmission assembly is disposed in the excretion chamber and connected to the connecting frame to drive the connecting frame to move the sealing gasket from the storage groove to the bottom of the support net to seal and cover the support net.

[0022] In a preferred embodiment, the transmission assembly includes:

[0023] The transmission frame is provided in multiple sets, and the multiple sets of transmission frames are arranged in parallel at intervals. One end of the transmission frame is hinged to the support frame, and the other end is hinged to the connecting frame.

[0024] A sliding rod is mounted on the support frame, which has a positioning frame. The sliding rod is slidably engaged within the positioning frame along its extension direction. A transmission post and a second threaded seat are mounted on the sliding rod, and the transmission post is slidably engaged within the transmission frame.

[0025] The second drive rod is rotatably disposed inside the excretion chamber along its axis, with one end passing through the excretion chamber and extending outward. A coaxial second threaded post is disposed on the second drive rod, and the second threaded post passes through the second threaded seat and is screwed to it.

[0026] In a preferred embodiment, the shielding assembly includes a first shielding door and a second shielding door. One end of the first shielding door is hinged to the aquaculture chamber to seal and shield the opening of the aquaculture chamber, and one end of the second shielding door is hinged to the retrieval chamber to seal and shield the opening of the retrieval chamber.

[0027] In a preferred embodiment, both the breeding chamber and the retrieval chamber are provided with retrieval components. Each retrieval component includes a detachable connecting shell that communicates with the breeding chamber or the retrieval chamber. A retrieval glove is provided on the connecting shell. Elastic clips are also provided on the breeding chamber and the retrieval chamber, and the retrieval glove is disposed within the elastic clips.

[0028] In a preferred embodiment, the bottom of the box is provided with a hinged support shell, and an tilting component is provided inside the support shell to control the box to rotate and tilt along the hinge point between it and the support shell.

[0029] In a preferred embodiment, the tilting component includes:

[0030] The third drive rod is slidably disposed in the support shell along its axis. The axis of the third drive rod is perpendicular to the axis of the hinge point between the box and the support shell, and one end is provided with a coaxial threaded rod.

[0031] A threaded sleeve, one end of which is rotatably mounted on the support shell, wherein the threaded rod passes through and is screwed into the threaded sleeve; and

[0032] The support rod is hinged at one end to the bottom of the box and at the other end to one end of the third drive rod.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. This breeding device allows rats to be raised in a breeding chamber. During the breeding process, the pressure inside the breeding chamber is regulated by an external pressure regulating device. When it is necessary to remove the rats, the pressure inside the removal chamber can be adjusted to match that of the breeding chamber. Then, the first sealing mechanism is opened, and the rats can be moved from the breeding chamber to the removal chamber through the removal hole. The removal hole is then sealed, thus ensuring that the air pressure inside the breeding chamber remains constant during the rat breeding process. The rat organs can also be taken from the removal chamber, avoiding deviations in experimental data caused by changes in air pressure inside the breeding chamber during the removal of rats.

[0035] 2. In use, the rats defecate into the excretion chamber through the holes in the support mesh. The rat excrement falls into the collection box. When it is necessary to clean the rat excrement, the support mesh can be covered by the second sealing mechanism, isolating the breeding chamber from the outside environment. The collection box can then be removed for cleaning. After cleaning, the collection box is placed back into the excretion chamber. The air pressure in the excretion chamber is then adjusted to match that in the breeding chamber using an external pressure regulating device. The second sealing mechanism is then opened to expose the support mesh for rat excretion. This ensures that the air pressure in the breeding chamber remains constant during the cleaning process, further improving the accuracy of experimental data. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0037] Figure 1 A three-dimensional structural diagram of a low-pressure dual-compartment rat feeding device provided by the present invention;

[0038] Figure 2 This is a schematic diagram of the box body in a low-pressure dual-compartment rat feeding device of the present invention;

[0039] Figure 3 This is a schematic diagram of the internal structure of the box in a low-pressure dual-compartment rat feeding device of the present invention;

[0040] Figure 4 This is a schematic diagram of the connection structure between the connecting frame and the support frame in a low-pressure dual-compartment rat feeding device of the present invention;

[0041] Figure 5 This is a schematic diagram of the support frame in a low-pressure dual-compartment rat feeding device of the present invention;

[0042] Figure 6 This is a schematic diagram of the connecting frame in a low-pressure dual-compartment rat feeding device of the present invention;

[0043] Figure 7 This is a schematic diagram of the tilting mechanism in a low-pressure dual-compartment rat feeding device of the present invention.

[0044] Figure label:

[0045] 101. Box body; 102. Breeding compartment; 103. Excretion compartment; 104. Retrieval compartment; 105. Partition; 106. Retrieval port;

[0046] 201. First interface; 202. Second interface; 203. Third interface; 204. Fourth interface; 205. First threaded seat; 206. Pressure indicator;

[0047] 301. First drive rod; 302. Sealing plug; 303. First threaded post;

[0048] 401. First barrier door; 402. Connecting shell; 403. Handling gloves; 404. Elastic clamp; 405. Second barrier door; 406. Collection box;

[0049] 501. Support frame; 502. Support net; 503. Storage slot; 504. Positioning frame;

[0050] 601. Connecting frame; 602. Baffle plate; 603. Sealing gasket;

[0051] 701. Transmission frame; 702. Sliding rod; 703. Conducting column; 704. Second threaded seat; 705. Second drive rod; 706. Second threaded column;

[0052] 801. Support shell; 802. Third drive rod; 803. Support rod; 804. Threaded rod; 805. Threaded sleeve. Detailed Implementation

[0053] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0054] Example:

[0055] like Figure 1 , 2 As shown in Figure 3, the present invention provides a low-pressure dual-compartment rat breeding device, including a box body 101. The box body 101 is provided with a breeding compartment 102, an excretion compartment 103 and a pick-up and drop-off compartment 104. The excretion compartment 103 is provided with a pull-out collection box 406. A partition 105 is provided between the breeding compartment 102 and the pick-up and drop-off compartment 104. A pick-up and drop-off hole 106 is provided on the partition 105. A first sealing mechanism is provided in the breeding compartment 102 for sealing the pick-up and drop-off hole 106.

[0056] Both the box body 101 and the partition 105 are made of transparent material. The breeding chamber 102 is used to raise mice. The mice excrete into the collection box 406 inside the excrement chamber 103. The collection box 406 can be removed to collect the excrement, facilitating the unified disposal of the mouse excrement. When it is necessary to take the mice out for experiments, the mice in the breeding chamber 102 can be moved to the take-out chamber 104 through the take-out hole 106, making it easy to take out the experimental mice. The mice can also be taken out in the take-out chamber 104. After the mice are placed in the take-out chamber 104, the take-out hole 106 can be sealed by the first sealing mechanism, so that the breeding chamber 102 forms a closed space.

[0057] like Figure 1 , 3 As shown, in this embodiment, the first sealing mechanism includes a sealing plug 302 disposed in the breeding chamber 102, a first driving rod 301 disposed on the sealing plug 302, one end of the first driving rod 301 passing through the breeding chamber 102 and extending outward, a first threaded post 303 coaxially disposed on the first driving rod 301, a first threaded seat 205 fixedly disposed inside the breeding chamber 102, and the first threaded post 303 passing through the first threaded seat 205 and screwed thereto.

[0058] The first threaded rod 303 can be rotated by rotating the first drive rod 301. During the rotation of the first threaded rod 303, the sealing plug 302 can be moved horizontally in the breeding chamber 102 by the thread engagement with the first threaded seat 205, so as to seal or unseal the take-up and put-down hole 106, so as to ensure that the breeding chamber 102 and the take-up and put-down chamber 104 can switch between communication and isolation.

[0059] like Figure 3 As shown, in this embodiment, a support frame 501 is provided between the breeding chamber 102 and the excretion chamber 103, and multiple sets of spaced-apart support nets 502 are provided on the support frame 501. Rats can be placed on the support frame 501 and the support nets 502 for breeding, and during the breeding process, the rats' excrement can be discharged into the collection box 406 through the support nets 502. A second sealing mechanism is provided in the excretion chamber 103 to seal and block the support nets 502.

[0060] like Figure 4 , 5As shown in Figure 6, in this embodiment, the second sealing mechanism includes a connecting frame 601 disposed within the excretion chamber 103. Multiple sets of baffles 602 are spaced apart on the connecting frame 601, and sealing gaskets 603 are disposed on the baffles 602. Multiple sets of spaced-apart storage slots 503 are provided at the bottom of the support frame 501, and the multiple sets of sealing gaskets 603 are respectively disposed within the multiple sets of storage slots 503. A transmission assembly is provided within the excretion chamber 103 to drive the connecting frame 601 to move the sealing gaskets 603 from the storage slots 503 to the bottom of the support net 502, thereby sealing and blocking the support net 502.

[0061] The transmission assembly includes multiple sets of transmission frames 701, which are arranged in parallel at intervals. One end of each transmission frame 701 is hinged to a support frame 501, and the other end is hinged to a connecting frame 601. A sliding rod 702 and a positioning frame 504 are provided on the support frame 501. The sliding rod 702 is slidably engaged in the positioning frame 504 along its extension direction. A transmission post 703 and a second threaded seat 704 are provided on the sliding rod 702. The transmission post 703 is slidably engaged in the transmission frame 701. A second drive rod 705, which is rotatable along its axis, is provided in the excretion chamber 103. One end of the second drive rod 705 passes through the excretion chamber 103 and extends outward. A coaxial second threaded post 706 is provided on the second drive rod 705. The second threaded post 706 passes through the second threaded seat 704 and is screwed to it.

[0062] When it is necessary to clean up the rat's excrement, the second drive rod 705 can be rotated to drive the second threaded column 706 to rotate. Since the sliding rod 702 and the second threaded seat 704 are positioned by the positioning frame 504 and can only move in a straight line, the second threaded column 706 can drive the sliding rod 702 to translate along its axis during the rotation. During its movement, the sliding rod 702 drives the transmission column 703 above it to move horizontally. During its movement, the transmission column 703 can drive the transmission frame 701 to swing along its hinge point with the support frame 501 through its cooperation with the transmission frame 701. Through the hinges between multiple sets of transmission frames 701 and connecting frame 601, the connecting frame 601 can be driven to move horizontally along the trajectory of one end of the transmission frame 701, so as to move multiple sets of baffles 602 and sealing gaskets 603 from the storage slot 503 to the bottom of the support net 502, so as to cover the support net 502, so that the breeding chamber 102 forms a sealed space during the process of pulling out the collection box 406, and the air pressure inside it will not change.

[0063] like Figure 2As shown, in this embodiment, the breeding chamber 102 is provided with a first communicating interface 201, the loading / unloading chamber 104 is provided with a second communicating interface 202, and the excretion chamber 103 is provided with a third communicating interface 203. The first interface 201, second interface 202, and third interface 203 are all used to connect to a pressure regulating pump. Pressure displays 206 are provided on the breeding chamber 102, the excretion chamber 103, and the loading / unloading chamber 104. The breeding chamber 102 is provided with a fourth communicating interface 204, which is used to connect to a ventilation device.

[0064] The air pressure in the breeding chamber 102, the retrieval chamber 104, and the excretion chamber 103 can be regulated by an external air pressure regulating pump, ensuring that the retrieval chamber 104 and the excretion chamber 103 maintain the same air pressure when connected to the breeding chamber 102. Three sets of air pressure displays 206 show the air pressure in each chamber, ensuring a constant air pressure in the rat breeding environment during rat handling or cleaning of rat excrement, thus improving the accuracy of experimental data. Ventilation in the breeding chamber 102 is achieved through a ventilation device and a fourth interface 204, ensuring normal breathing for the rats.

[0065] like Figure 1 As shown, in this embodiment, a shielding assembly is provided on the box body 101 to seal and shield the upper opening of the box body 101. The shielding assembly includes a first shielding door 401 and a second shielding door 405. One end of the first shielding door 401 is hinged to the breeding chamber 102 to seal and shield the opening of the breeding chamber 102. One end of the second shielding door 405 is hinged to the retrieval chamber 104 to seal and shield the opening of the retrieval chamber 104.

[0066] The rats to be raised can be placed in batches into the breeding chamber 102 by opening the first shielding door 401. After the first sealing mechanism seals the retrieval hole 106, the second shielding door 405 is opened to retrieve and release the rats in the retrieval chamber 104. Retrieval components are provided on the breeding chamber 102 and the retrieval chamber 104. The retrieval components include a detachable connecting shell 402, which is connected to the breeding chamber 102 or the retrieval chamber 104. A retrieval glove 403 is provided on the connecting shell 402. An elastic clip 404 is also provided on the breeding chamber 102 and the retrieval chamber 104, and the retrieval glove 403 is placed inside the elastic clip 404.

[0067] Researchers can use flexible gloves 403 to reach into the rearing chamber 102 or the pick-up / drop-off chamber 104 to easily pick up and drop off designated mice, thus improving the ease of use of the rearing device. When the gloves 403 are not needed, one end can be clamped with an elastic clip 404 to prevent any impact on the air pressure inside the housing 101. Furthermore, the gloves 403 can be replaced after the connecting shell 402 is disassembled, facilitating cleaning and disinfection.

[0068] like Figure 1 , 7 As shown, in this embodiment, a hinged support shell 801 is provided at the bottom of the box body 101. An tilting component is provided inside the support shell 801 to control the box body 101 to rotate and tilt along its hinge point with the support shell 801. The tilting component includes a third drive rod 802 that is slidably disposed inside the support shell 801 along its axis. The axis of the third drive rod 802 is perpendicular to the axis of the hinge point between the box body 101 and the support shell 801. A coaxial threaded rod 804 is provided at one end. A rotatable threaded sleeve 805 is provided on the support shell 801. The threaded rod 804 passes through the threaded sleeve 805 and is screwed to it. A hinged support rod 803 is provided at the bottom of the box body 101. One end of the support rod 803 is hinged to one end of the third drive rod 802.

[0069] By rotating the threaded sleeve 805 and engaging it with the threaded rod 804, the support rod 803 can be rotated along its hinge point with the third drive rod 802. Simultaneously, the support rod 803 can rotate along its hinge point with the box 101, thereby causing the box 101 to tilt along its hinge point with the support shell 801. This facilitates herding the rats into one end of the breeding chamber 102, preventing the rats from running into the retrieval chamber 104 during the retrieval process. It also reduces the cleaning range of the box 101 and controls the tilt of the support frame 501 so that the excrement on the support frame 501 falls into the collection box 406, improving the collection efficiency of rat excrement.

[0070] In addition, it is understood that in this embodiment, the gaps between the various parts need to be properly sealed to ensure the airtightness of the device. After the first shielding door 401, the second shielding door 405 and the collection box 406 are closed, they are all connected to the box body 101 by fasteners to prevent them from opening on their own. The fasteners can be bolts, threaded knobs and buckles, etc.

[0071] Specific usage and beneficial effects of the present invention:

[0072] This breeding device allows mice to be raised in a breeding chamber 102. During the breeding process, the pressure inside the breeding chamber 102 is regulated by an external pressure regulating device. When mice need to be removed, the pressure inside the removal chamber 104 can be adjusted to match that of the breeding chamber 102. Then, by rotating the first drive rod 301, the first threaded column 303 is rotated, causing the sealing plug 302 to move laterally and open the removal hole 106. The mice can then be moved from the breeding chamber 102 to the removal chamber 104 through the removal hole 106. The removal hole 106 is then sealed, thus ensuring that the air pressure inside the breeding chamber 102 remains constant during the mouse breeding process. This avoids deviations in experimental data caused by changes in air pressure inside the breeding chamber 102 during the extraction of mouse organs or the extraction of mice. Mouse organs can also be extracted from the removal chamber 104.

[0073] When the feeding device is in use, the rats defecate into the excretion chamber 103 through the through holes of the support net 502. The rat excrement falls into the collection box 406. When it is necessary to clean up the rat excrement, the second drive rod 705 can be rotated to drive the second threaded column 706 to rotate. During the rotation, the second threaded column 706, through its cooperation with the second threaded seat 704, drives the sliding rod 702 to slide along the extension direction of the positioning frame 504. Thus, through the cooperation of the transmission column 703 on the sliding rod 702 and the transmission frame 701, the connecting frame 601 is moved, so that the baffle plate 602 and the sealing gasket 603 move from the storage groove 503 to the bottom of the support net 502 to cover the support net 502, thus isolating the breeding chamber 102 from the outside world. Then the collection box 406 can be removed to clean up the rat excrement. After cleaning the collection box 406, it is placed back into the excretion chamber 103. Then, the air pressure in the excretion chamber 103 is adjusted to be consistent with that in the breeding chamber 102 by using an external pressure regulating device. The second sealing mechanism is then opened to expose the support net 502 so that the rats can defecate. This ensures that the air pressure in the breeding chamber 102 remains constant during the cleaning of the rats' excrement, further improving the accuracy of the experimental data.

[0074] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A low-pressure dual-compartment rat rearing device, characterized in that, Including: The box body (101) is provided with a breeding chamber (102), an excretion chamber (103) and a pick-up and drop-off chamber (104) inside the box body (101), and a pull-out collection box (406) is provided inside the excretion chamber (103). A partition (105) is provided between the breeding chamber (102) and the loading and unloading chamber (104), and the partition (105) is provided with loading and unloading holes (106). The first sealing mechanism is installed inside the breeding chamber (102) to seal the take-up and put-out hole (106); A support frame (501) is provided between the breeding chamber (102) and the excretion chamber (103), and multiple sets of spaced support nets (502) are provided on the support frame (501). The second sealing mechanism is installed inside the discharge chamber (103) to seal and shield the support net (502); and A shielding component is disposed on the box body (101) to seal and shield the upper opening of the box body (101); The second sealing mechanism includes: A connecting frame (601) is disposed inside the discharge chamber (103); Multiple sets of baffle plates (602) are provided and spaced apart on the connecting frame (601). Sealing gaskets (603) are provided on the baffle plates (602). Multiple sets of spaced-apart storage slots (503) are provided at the bottom of the support frame (501). The multiple sets of sealing gaskets (603) are respectively disposed within the multiple sets of storage slots (503). A transmission assembly is provided in the excretion chamber (103) and connected to the connecting frame (601) to drive the connecting frame (601) to move the sealing gasket (603) from the storage groove (503) to the bottom of the support net (502) to seal and cover the support net (502); The transmission assembly includes: The transmission frame (701) is provided in multiple sets, and the multiple sets of transmission frames (701) are arranged in parallel at intervals. One end of the transmission frame (701) is hinged to the support frame (501), and the other end is hinged to the connecting frame (601). A sliding rod (702) is disposed on the support frame (501), and a positioning frame (504) is disposed on the support frame (501). The sliding rod (702) is slidably engaged within the positioning frame (504) along the extending direction of the positioning frame (504). A transmission post (703) and a second threaded seat (704) are disposed on the sliding rod (702). The transmission post (703) is slidably engaged within the transmission frame (701). The second drive rod (705) is rotatably disposed in the excretion chamber (103) along its axis, and one end of it passes through the excretion chamber (103) and extends outward. The second drive rod (705) is provided with a coaxial second threaded post (706), which passes through the second threaded seat (704) and is screwed to it.

2. The low-pressure dual-compartment rat rearing device according to claim 1, characterized in that: The breeding chamber (102) is provided with a first interface (201) that is connected to the breeding chamber (104), the retrieval chamber (104) is provided with a second interface (202) that is connected to the breeding chamber (103), and the excretion chamber (103) is provided with a third interface (203) that is connected to the excretion chamber (103). The first interface (201), the second interface (202) and the third interface (203) are all used to connect to the air pressure regulating pump. The breeding chamber (102), the excretion chamber (103) and the retrieval chamber (104) are all provided with an air pressure display (206).

3. The low-pressure dual-compartment rat rearing device according to claim 1, characterized in that: The breeding chamber (102) is provided with a fourth interface (204) for connecting a ventilation device.

4. The low-pressure dual-compartment rat rearing device according to claim 1, characterized in that, The first sealing mechanism includes: A sealing plug (302) is disposed inside the breeding chamber (102); A first threaded seat (205) is disposed inside the breeding chamber (102); and The first drive rod (301) is connected at one end to the sealing plug (302) and at the other end through the breeding chamber (102) and extends outward. The first drive rod (301) is provided with a first threaded post (303) on the same axis. The first threaded post (303) passes through the first threaded seat (205) and is screwed to it.

5. A low-pressure dual-compartment rat rearing device according to claim 1, characterized in that: The shielding assembly includes a first shielding door (401) and a second shielding door (405). One end of the first shielding door (401) is hinged to the breeding chamber (102) to seal and shield the opening of the breeding chamber (102). One end of the second shielding door (405) is hinged to the retrieval chamber (104) to seal and shield the opening of the retrieval chamber (104).

6. A low-pressure dual-compartment rat rearing device according to claim 5, characterized in that: Both the breeding chamber (102) and the pick-and-place chamber (104) are equipped with pick-and-place components. Each pick-and-place component includes a detachable connecting shell (402). The connecting shell (402) is connected to the breeding chamber (102) or the pick-and-place chamber (104). A pick-and-place glove (403) is provided on the connecting shell (402). An elastic clip (404) is also provided on the breeding chamber (102) and the pick-and-place chamber (104). The pick-and-place glove (403) is located inside the elastic clip (404).

7. The low-pressure dual-compartment rat rearing device according to claim 1, characterized in that: The bottom of the box (101) is provided with a hinged support shell (801), and an tilting component is provided inside the support shell (801) to control the box (101) to rotate and tilt along the hinge point between it and the support shell (801).

8. A low-pressure dual-compartment rat rearing device according to claim 7, characterized in that, The tilting component includes: The third drive rod (802) is slidably disposed in the support shell (801) along its axis. The axis of the third drive rod (802) is perpendicular to the axis of the hinge point between the box (101) and the support shell (801). One end is provided with a coaxial threaded rod (804). A threaded sleeve (805) is rotatably mounted on the support shell (801) at one end, and a threaded rod (804) passes through the threaded sleeve (805) and is screwed to it; and The support rod (803) is hinged at one end to the bottom of the box (101) and at the other end to one end of the third drive rod (802).

Citation Information

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