A central exhaust ventilation cage

Abstract

This application discloses a centrally ventilated cage box, relating to the field of cage boxes. It includes a cage box body, a feeding mechanism for dispensing feed on one side of the cage box body, and an extension mechanism for expanding the dispensing range of the feeding mechanism on the side of the feeding mechanism away from the cage box body. The feeding mechanism includes a feeding seat on one side of the cage box body, a feeding opening on one side of the feeding seat, and a sealing plate slidably disposed on one side of the feeding seat to seal the feeding opening. The extension mechanism includes an extension seat on one side of the feeding seat, and an extension space communicating with the feeding opening on one side of the extension seat. The extension space is inclined to the bottom wall of the feeding opening. This application, by incorporating the feeding mechanism and the extension mechanism, eliminates the need to open the cage lid when adding feed, preventing outside air from entering the cage box body and preventing feed dust, moisture, or foreign objects from intruding.

Description

Technical Field

[0001] This application relates to the field of cage boxes, and in particular to a centrally ventilated cage box. Background Technology

[0002] In the field of laboratory animal science, rats and mice are the most commonly used model organisms. They are usually housed in cages and boxes. The cages and boxes must meet the physiological needs of rats and mice, such as activity space and food and water supply, while also facilitating feeding management, cleaning and disinfection, and ensuring the health of laboratory animals and the accuracy of experimental data.

[0003] The existing publication number CN102119666A discloses a central exhaust ventilation cage system, but it still has the following shortcomings in actual use:

[0004] The cage lid needs to be opened when adding feed, which easily allows outside air to enter the cage, affecting the environment inside. It can also cause feed dust, moisture, or foreign objects to enter, polluting the animal's living environment. In addition, the feeding area of ​​the cage is small, and feed is easy to scatter when feeding, resulting in feed waste. Utility Model Content

[0005] To address the issue of feed delivery methods in cage boxes, this application provides a centrally ventilated cage box.

[0006] The central exhaust ventilation cage provided in this application adopts the following technical solution:

[0007] A centrally ventilated cage box includes a cage box body, a food box is provided inside the cage box body, a feeding mechanism for dispensing feed is provided on one side of the surface of the cage box body, and an extension mechanism for expanding the dispensing range of the feeding mechanism is provided on the side of the feeding mechanism away from the cage box body.

[0008] The feeding mechanism includes a feeding seat disposed on one side of the surface of the cage body, a feeding port being provided on one side of the surface of the feeding seat, and a sealing plate for sealing the feeding port being slidably disposed on one side of the surface of the feeding seat.

[0009] The extension mechanism includes an extension seat disposed on one side of the surface of the feeding seat, and an extension space communicating with the feeding port is opened on one side of the surface of the extension seat. The extension space is inclined to the bottom wall of the feeding port.

[0010] By adopting the above technical solution, the feeding mechanism puts the feed into the food box, and the feeding range of the feeding mechanism is expanded by the extension mechanism. The feeding mechanism and the extension mechanism are designed to be detachable, so that the extension mechanism can be quickly removed from the feeding mechanism. This reduces the overall installation space of the cage body, the feeding mechanism and the extension mechanism, making it more suitable for multi-level breeding.

[0011] Preferably, the feeding mechanism further includes a lifting plate fixed to one side of the surface of the sealing plate, a limiting shaft symmetrically rotated on one side of the surface of the lifting plate, a driving plate fixed at the end of the limiting shaft away from the lifting plate, and a limiting post fixed at the surface of the driving plate away from the limiting shaft.

[0012] By adopting the above technical solution, the drive plate is pulled to provide power to the limit shaft, causing the limit shaft to rise. The limit shaft drives the lifting plate to rise, which in turn drives the sealing plate to rise, thus releasing the seal on the feeding port.

[0013] Preferably, a guide plate is symmetrically fixed to one side of the surface of the sealing plate and slidably disposed inside the feeding seat, and an elastic element fixed to one side of the surface of the guide plate and disposed inside the feeding seat.

[0014] When the sealing plate is not pulled by external force, one side of the surface of the sealing plate abuts against the inner wall of the feeding port.

[0015] By adopting the above technical solution, the rising of the sealing plate provides power to the guide plate, causing the guide plate to rise. The rising of the guide plate presses the elastic element, causing the elastic element to deform. After the sealing plate loses power, the guide plate loses power, and the guide plate automatically resets through the recovery deformation of the elastic element. This causes the guide plate to drive the sealing plate to automatically reset, thus sealing the feeding port.

[0016] Preferably, the extension mechanism further includes a limiting rod symmetrically fixed on one side of the extension seat surface, and a limiting groove is formed on the end surface of the limiting rod away from the extension seat.

[0017] By adopting the above technical solution, the limiting post and the limiting groove cooperate with each other to restrict the driving plate to one side of the surface of the extension seat after the driving plate rises, thereby positioning the sealing plate.

[0018] Preferably, the feeding seat has symmetrically fixed inserts on one side of the surface of the extension seat near the surface of the extension seat. The inserts are inclined on one side of the surface of the extension seat, and a positioning groove is formed on one side of the surface of the inserts.

[0019] By adopting the above technical solution, the feeding seat and the extension seat can be spliced ​​together using the plug, so that the extension seat can be quickly removed from the feeding seat, reducing the installation space of the feeding seat.

[0020] Preferably, a positioning block that is engaged with the positioning groove is slidably disposed inside the side of the extension seat near the feeding seat, and an elastic element two that is fixed inside the extension seat is fixed at the end of the positioning block away from the insertion block.

[0021] When the positioning block is not driven by the insert block, the end of the positioning block away from the second elastic element is on the same horizontal line as the bottom wall of the positioning groove.

[0022] By adopting the above technical solution, while the insert block is inserted into the interior of one side of the extension seat, the surface of the positioning block abuts against the surface of the insert block, thereby lifting the positioning block and causing it to rise. The positioning block then presses against the second elastic element, causing the second elastic element to deform. When the positioning groove moves to be directly opposite the end of the positioning block away from the second elastic element, the end of the positioning block away from the second elastic element loses the abutment force of the insert block surface, causing the second elastic element to lose the pressing force of the positioning block. The positioning block then springs into the positioning groove with the help of the rebound force of the second elastic element, fixing the insert block inside the extension seat and fixing the feeding seat and the extension seat together.

[0023] Preferably, guide plates that are slidably disposed inside the extension seat are fixed on both sides of the surface of the positioning block.

[0024] By adopting the above technical solution, the positioning block is limited by the guide plate, so that the positioning block will not deviate when sliding inside the extension seat.

[0025] Preferably, an infrared sensor is symmetrically fixed on one side of the surface inside the cage body of the feeding seat, and an indicator light electrically connected to the infrared sensor is fixed on one side of the surface of the cage body.

[0026] By adopting the above technical solution, infrared sensors are used to monitor the feed inside the feeding box. When the feed is insufficient, the infrared sensors can control the reminder light to issue a reminder, informing the farmers that the feed is insufficient so that the farmers can add feed.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By incorporating a feeding mechanism and an extension mechanism, the cage lid does not need to be opened when adding feed, preventing outside air from entering the cage body and preventing feed dust, moisture, or foreign objects from intruding, thus ensuring a stable environment inside the cage. The connection between the extension mechanism and the feeding mechanism expands the feed dispensing range, effectively preventing feed from scattering during dispensing and reducing feed waste. At the same time, the feeding mechanism and the extension mechanism adopt a detachable design, allowing the extension mechanism to be quickly removed from the feeding mechanism, reducing the overall installation space of the cage body, feeding mechanism, and extension mechanism, making it more suitable for multi-level breeding.

[0029] 2. The infrared sensor installed on the feeding seat can monitor the amount of feed inside the feeding box in real time. When the feed is insufficient, the infrared sensor controls the reminder light to issue an alert, so that the keepers can add feed in time, ensuring the normal feeding of the animals and avoiding the impact on the animals' growth and reproduction due to untimely feed supply. Attached Figure Description

[0030] Figure 1This is a schematic diagram of the overall structure of this application;

[0031] Figure 2 This is a three-dimensional structural diagram of the cage body of this application;

[0032] Figure 3 This is a schematic diagram of the internal structure of the cage body of this application;

[0033] Figure 4 This is a cross-sectional structural diagram of the cage body of this application;

[0034] Figure 5 This is a three-dimensional structural diagram of the feeding mechanism and the extension mechanism of this application;

[0035] Figure 6 This is a partial three-dimensional structural diagram of the feeding mechanism and the extension mechanism of this application;

[0036] Figure 7 For this application Figure 6 Enlarged view of point A in the middle;

[0037] Figure 8 For this application Figure 6 Enlarged view of point B in the middle;

[0038] Figure 9 This is a three-dimensional structural diagram of the feeding seat and extension seat of this application.

[0039] Attached reference numerals: 1. Movable micro-barrier; 2. Cage frame; 3. Cage box body; 31. Cage lid; 32. Feeding box; 4. Reminder light;

[0040] 5. Feeding mechanism; 51. Feeding seat; 511. Feeding port; 512. Guide groove; 52. Infrared sensor; 53. Insert block; 531. Positioning groove; 54. Drive plate; 541. Limiting post; 542. Limiting shaft; 55. Lifting plate; 56. Sealing plate; 561. Guide plate; 562. Elastic element one;

[0041] 6. Extension mechanism; 61. Extension seat; 611. Storage space; 612. Guide groove; 613. Extension space; 62. Elastic element two; 621. Positioning block; 622. Guide plate; 63. Limiting rod; 631. Limiting groove. Detailed Implementation

[0042] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0043] This application discloses a central exhaust ventilation cage.

[0044] Reference Figure 1A centrally ventilated exhaust cage includes a movable micro-barrier 1. The movable micro-barrier 1 is a device that uses an HVAC ventilation and purification system to deliver air from the laboratory environment into the micro-barrier. A cage frame 2 is installed inside the movable micro-barrier 1, and multiple cage bodies 3 are inserted into the surface of the cage frame 2 in a ring shape. The movable micro-barrier 1 includes:

[0045] The barrier body is typically a rectangular box structure with stainless steel silent swivel casters with brakes installed at the bottom for easy movement and fixation; a ventilation hose with a diameter of ≥100mm is installed at the top for connecting to the external ventilation system.

[0046] Filtration system: A certain space is formed between the filter element and the filter cartridge, and the roller-type immersion filtration is used. The filter element diameter is 20cm and the height is 38cm. The unfolded effective filtration area is ≥0.8 square meters, which extends the filter replacement time and the effective filtration area is 4 times larger than that of the traditional one.

[0047] Air supply system: including at least one set of first air supply ducts located at the top of the barrier body and second air supply ducts located at the four corners of the barrier body. The first air supply ducts are connected to the filter membrane system. The first air supply ducts and the second air supply ducts are interconnected. The second air supply ducts are vertically arranged and have a plurality of air supply holes on them for delivering filtered fresh air into the microbarrier for the experimental animals to breathe.

[0048] Ventilation system: Connected to the top of the cage system, and equipped with a first exhaust duct that extends out of the main body of the barrier, used to exhaust the polluted air produced by the experimental animals inside the micro-barrier to the outside, ensuring air cleanliness.

[0049] Cage box system: Composed of cage frame 2 and cage box body 3. Cage frame 2 can rotate freely 360 degrees. The rotating frame is arranged in multiple layers. The gap between two adjacent rotating frame units should be ≤0.5mm. The central exhaust design ensures the consistency of the airflow environment inside the cage box. The rotating frame surface of each cage box body 3 is circular. Multiple convex strips are fixed radially on the circular bottom surface, dividing the circular bottom surface into several equal parts. Each equal part can hold one cage box body 3. The cage box body 3 and cage frame 2 adopt a cross-shaped track insertion method for easy docking of the system. It can be easily inserted at any angle.

[0050] Control System: The system uses an IVC main unit, specifically the MK280 / B series, which is suitable for different cage sizes, including 320 mouse and rat cages and 20 rat cages. The main unit features an intelligent control design with a PLC module group and a 7-inch touchscreen that displays real-time temperature, humidity, air loss rate, pressure, exhaust fan speed, and filter status. The control system also includes fault alarms and early warning / alarm prompts for filter replacement.

[0051] Fan System: The fan system can automatically adjust the air volume to ensure constant pressure and air exchange rate. The large impeller water magnetic brush fan is controlled by MW and electronic pulse speed control. It can run continuously for ≥50,000 hours without failure. The low power operation of the equipment saves two-thirds of the power compared to frequency conversion control fans, and it is also low noise.

[0052] Reference Figures 2-6 A feeding mechanism 5 for dispensing feed is provided on one side of the surface of the cage body 3. The feeding mechanism 5 includes a feeding seat 51 provided on one side of the surface of the cage body 3. A feeding space is provided on one side of the surface of the cage body 3. The two sides of the surface of the feeding seat 51 are fixed to the inner wall of the feeding space. A feeding port 511 is provided on one side of the surface of the feeding seat 51. The end surface of the feeding seat 51 located inside the cage body 3 is on the same vertical line as the inner wall of the feed box 32, so that the feed inside the feeding port 511 can be directly poured into the interior of the feed box 32. The bottom wall of the feeding port 511 is a slope with an angle of 30°.

[0053] Feed can be automatically poured into the interior of the feed box 32 through the sloping bottom wall of the feeding port 511.

[0054] Reference Figures 2-9 The feeding mechanism 5 also includes a drive plate 54 symmetrically arranged on one side of the surface of the feeding seat 51. A limiting shaft 542 is fixed on the side of the drive plate 54 near the surface of the feeding seat 51. A lifting plate 55 is rotatably arranged on the end of the limiting shaft 542 away from the drive plate 54 via a bearing. The bearing includes an inner ring, an outer ring, rolling elements, and a cage. The bearing is an existing and mature technology, and the principle of the bearing will not be described in detail. The outer ring of the bearing on the surface of the limiting shaft 542 away from the drive plate 54 is fixed in the middle of the end of the lifting plate 55 near the drive plate 54. The side of the lifting plate 55 near the cage body 3 is U-shaped. A sealing plate 56 for sealing the feeding port 511 is fixed on the end of the lifting plate 55 away from the limiting shaft 542. The side of the sealing plate 56 near the cage body 3 is T-shaped. A sliding groove is opened inside the feeding seat 51. The surface of the sealing plate 56 abuts against the inner wall of the sliding groove, so that the sealing plate 56 can slide stably inside the sliding groove.

[0055] It should be noted that when there is no external force pulling, the end of the sealing plate 56 away from the lifting plate 55 is always in contact with the inner wall of the feeding port 511, so that the sealing plate 56 seals the feeding port 511. The end of the sealing plate 56 away from the lifting plate 55 is a slope, which reduces the space occupied by the sealing plate 56 when sealing the feeding port 511. This allows the feed to accumulate between the slope of the end of the sealing plate 56 away from the lifting plate 55 and the slope of the bottom wall of the feeding port 511, reducing the contact area between the feed and the air, which is beneficial to reducing the oxidation rate of the feed.

[0056] Pulling the drive plate 54 provides power to the limit shaft 542, causing the limit shaft 542 to rise. The limit shaft 542 drives the lifting plate 55 to rise, which in turn drives the sealing plate 56 to rise, releasing the seal on the feeding port 511. This allows the feed to continue flowing along the inclined bottom wall of the feeding port 511 until it is poured into the feed box 32. Thus, the cage cover 31 does not need to be opened during the feeding process, preventing outside air from entering the cage body 3.

[0057] Reference Figures 6-8 A guide plate 561 is symmetrically fixed on one side of the surface of the sealing plate 56, and a guide groove 512 is symmetrically opened on the inner wall of the slide groove. The surface of the guide plate 561 abuts against the inner wall of the guide groove 512, so that the guide plate 561 can slide stably inside the guide groove 512. An elastic element 562 is fixed in the middle of one side of the surface of the guide plate 561, and the end of the elastic element 562 away from the guide plate 561 is fixed on the inner wall of the guide groove 512.

[0058] The rising of the sealing plate 56 provides power to the guide plate 561, causing the guide plate 561 to rise. The rising guide plate 561 presses the elastic element 562, causing the elastic element 562 to deform. After the sealing plate 56 loses power, the guide plate 561 loses power, causing the guide plate 561 to automatically reset through the elastic element 562, causing the guide plate 561 to drive the sealing plate 56 to automatically reset, so that the sealing plate 56 re-seals the feeding port 511.

[0059] Reference Figures 2-9 An extension mechanism 6 for expanding the feeding range of the feeding mechanism 5 is provided on the side of the surface away from the cage body 3. The extension mechanism 6 includes an extension seat 61 provided on one side of the surface of the feeding seat 51. An extension space 613 communicating with the feeding port 511 is opened on one side of the surface of the extension seat 61. The bottom wall of the extension space 613 is inclined with an angle of 30°.

[0060] By connecting the extension seat 61 with the feeding seat 51, the extension space 613 is connected to the feeding port 511 to form a larger space, effectively preventing feed from scattering.

[0061] Reference Figures 2-6 The extension mechanism 6 also includes a limiting rod 63 symmetrically fixed on one side of the surface of the extension seat 61. A limiting groove 631 is formed on the surface of the limiting rod 63 away from the extension seat 61. The inner diameter of the limiting groove 631 is the same as the radius of the limiting post 541. A limiting post 541 is fixed on the end of the drive plate 54 away from the limiting shaft 542. Both the limiting post 541 and the limiting groove 631 are cylindrical. The inner diameter of the limiting groove 631 is the same as the radius of the limiting post 541. When the surface of the limiting post 541 away from the drive plate 54 abuts against the bottom wall of the limiting groove 631, the surface of the drive plate 54 near the limiting post 541 abuts against the surface of the limiting rod 63 away from the extension seat 61.

[0062] The drive plate 54 rises to provide power to the limiting post 541, causing the limiting post 541 to rise. When the end of the limiting post 541 away from the drive plate 54 rises to the same horizontal plane as the end of the limiting rod 63 away from the extension seat 61, the drive plate 54 is manually rotated to rotate 90 degrees clockwise around the limiting shaft 542. This causes the drive plate 54 to rotate the limiting post 541 clockwise by 90 degrees, so that the center of the limiting post 541 is on the same vertical line as the center of the limiting groove 631. Pressing the drive plate 54 causes it to move downward, which in turn causes the limiting post 541 to move downward, inserting it into the limiting groove 631. The surface of the limiting post 541 abuts against the inner wall of the limiting groove 631, thus limiting the driving plate 54 with the limiting rod 63.

[0063] Reference Figures 2-7 A feeding seat 51 is symmetrically fixed with a plug 53 on one side of the surface of the extension seat 61 near the surface of the feeding seat 51. The surface of the plug 53 is smooth. The side of the plug 53 near the surface of the extension seat 61 is composed of a horizontal surface and an inclined surface with an angle of 25°-45°. A positioning groove 531 is opened on the horizontal surface of the plug 53. A slot is opened on the side of the extension seat 61 near the surface of the feeding seat 51. The surface of the plug 53 and the inner wall of the slot are on the same horizontal line. A storage space 611 is opened on the inner wall of the slot. An elastic element 62 is fixed on the inner wall of the storage space 611. A positioning block 621 is fixed on the end of the elastic element 62 away from the inner wall of the storage space 611. The end of the positioning block 621 away from the elastic element 62 is a semi-circular block. The positioning groove 531 is a semi-circular groove. The length of the positioning groove 531 is the same as the length of the positioning block 621.

[0064] The positioning block 621 has guide plates 622 fixed on both sides of its surface, and guide grooves 612 are opened on both sides of the inner wall of the storage space 611. The surface of the guide plate 622 abuts against the inner wall of the guide groove 612, so that the guide plate 622 can slide stably inside the guide groove 612. When the positioning block 621 is not driven by the insert block 53, the end of the positioning block 621 away from the elastic member 62 is on the same horizontal line as the bottom wall of the positioning groove 531.

[0065] As the insert block 53 is inserted into the slot on one side of the extension seat 61, the end surface of the positioning block 621 away from the elastic element 62 abuts against the inclined surface of the insert block 53, causing the inclined surface of the insert block 53 to lift the positioning block 621, making the positioning block 621 rise. The positioning block 621 then rises further and presses against the elastic element 62, causing the elastic element 62 to deform. When the end of the positioning block 621 away from the elastic element 62 moves to the horizontal plane of the insert block 53, the elastic element 62 is in a deformed state. When the positioning groove 531 on the horizontal plane of the insertion block 53 moves to be directly opposite the end of the positioning block 621 away from the elastic element 62, the end of the positioning block 621 away from the elastic element 62 loses the abutment force of the surface of the insertion block 53, causing the elastic element 62 to lose the pressing force of the positioning block 621, and the positioning block 621 is pushed into the positioning groove 531 by the rebound force of the elastic element 62, so that the insertion block 53 is fixed inside the extension seat 61, and the feeding seat 51 and the extension seat 61 are fixed together.

[0066] Reference Figures 2-4 An infrared sensor 52 is symmetrically fixed on one side of the surface of the feeding seat 51 inside the cage body 3. The infrared sensor 52 is set at a 45-degree angle on the side of the surface of the feeding seat 51 inside the cage body 3, so that the end of the infrared sensor 52 away from the feeding seat 51 faces the inside of the food box 32 at a 45-degree angle. An indicator light 4 electrically connected to the infrared sensor 52 is fixed on one side of the surface of the cage body 3.

[0067] It should be noted that: the user needs to install a relay module on one side of the surface of the cage body 3, connect the relay module, infrared sensor 52, and reminder light 4 to the power supply, connect the infrared sensor 52 to the relay module, and connect the reminder light 4 to the relay module. When both infrared sensors 52 simultaneously scan that the amount of feed inside the feed box 32 is insufficient, the two infrared sensors 52 control the reminder light 4 to start, causing the reminder light 4 to flash, thus reminding the feeder. When the infrared sensors 52 scan that the amount of feed inside the feed box 32 is sufficient, the infrared sensors 52 control the reminder light 4 to stop operating, that is, the reminder light 4 is turned off.

[0068] Different amounts of feed (such as full, half, or insufficient) are placed in the feed box 32, and the detection threshold of the infrared sensor 52 is adjusted to ensure that the detection accuracy is ≥95%.

[0069] The infrared sensor 52 scans the amount of feed inside the feeding box 32. When it detects that the amount of feed is insufficient, the infrared sensor 52 controls the reminder light 4 to issue a reminder, so that the feeder can add feed in time and ensure the normal feeding of the animals.

[0070] Reference Figure 3A cage cover 31 is attached to one side of the cage body 3 via a snap fastener. The snap fastener connection between the cage cover 31 and the cage body 3 is existing technology, and the principle will not be described in detail. An air intake filter is installed on the side of the cage body 3 near the indicator light 4, and an air inlet is opened on the side of the cage body 3 near the indicator light 4. An exhaust filter is installed on the inner wall of the cage body 3, and an exhaust port is opened on the inner wall of the cage body 3. The air intake filter is located below the exhaust filter, adopting a unique low-intake and high-exhaust design, which makes the air cleanliness high. The cage body 3 has a built-in water bottle box, which is leak-proof and pollution-free. The water bottle has a capacity of 400ml. There are no extra mesh covers inside the cage body 3, providing a large effective activity space, which is conducive to animal breeding.

[0071] Reference Figure 1 The cage frame 2 adopts a 10-layer design with a height of 199cm. The cage frame 2 adopts a modular design to optimize the stocking density of the cage body 3, save stocking space, and enable the application to adjust the exhaust volume according to the number of cage bodies 3, thereby saving the operating cost of the laboratory.

[0072] It should be noted that both elastic element 1 562 and elastic element 2 62 are springs. The calculation formula for the spring is: F = kx, where F is the external force on the spring, in N, k is the spring constant, in N / m, and x is the deformation of the spring, in m. The elastic force of the spring is then calculated so that it can be used in this application.

[0073] The infrared sensor 52 uses the Omron E3ZM-T83 series, and the reminder light 4 uses the Aomeng LTE-50 cage frame 2TJ integrated three-color light silent series.

[0074] The main body of the mobile micro-barrier 1 is made of high-quality stainless steel and tempered glass, which is sturdy, durable and well-sealed. It facilitates observation of the situation inside the cage and effectively isolates the external environment. The sealing plate 56 is made of nitrile rubber with a Shore hardness of 60±5, which meets the GB / T20028-2005 standard "Testing of Physical Properties of Rubber with Temperature and Humidity Control". It has good oil resistance, corrosion resistance and biocompatibility, can withstand 70% ethanol disinfection and has a service life of ≥5000 cycles. The sealing plate 56 is tightly fitted to the side of the cage body 3 near the extension seat 61 to seal the feeding space. The inclined surfaces of the feeding port 511 and the extension space 613 are made of polished stainless steel. The first elastic element 562 and the second elastic element 62 are made of stainless steel.

[0075] The distance between the side of the cage cover 31 closest to the cage body 3 and the side of the limiting rod 63 furthest from the extension seat 61 is 5-8cm, giving the user enough space to operate the drive plate 54 and making it easy to install the extension mechanism 6 on the feeding mechanism 5.

[0076] It should be added that: after separating the feeding seat 51 and the extension seat 61, wipe the surfaces of the feeding seat 51, the extension seat 61 and the sealing plate 56 with 70% ethanol for 10 minutes; rinse each part with purified water to remove residual disinfectant; dry in a 60℃ oven for 30 minutes, or wipe dry with a lint-free cloth.

[0077] Pelleted feed: Pelleted feed with a particle size ≤5mm can be directly fed through the feeding port 511. It is recommended to control the feeding speed at 50-100g / min.

[0078] Powdered feed: Use a funnel to assist in feeding to prevent dust from flying. When feeding, pour slowly at a rate of ≤30g / min.

[0079] Usage restrictions: Do not feed with a moisture content greater than 15%, as this may cause the feed to clump and deteriorate, affecting the normal operation of the equipment.

[0080] During use, the feeding mechanism 5 and the extension mechanism 6 are separated.

[0081] The implementation principle of the centrally ventilated cage box in this application embodiment is as follows: When the infrared sensor 52 detects that the feed inside the feed box 32 is insufficient, the infrared sensor 52 controls the reminder light 4 to start, so that the reminder light 4 emits a reminder, enabling the feeder to remove the cage box body 3 that has been reminded from the cage frame 2 and add feed to the feed box 32 inside the cage box body 3 that has been reminded.

[0082] Subsequently, the feeder pushes the extension seat 61, causing the side with the slot on the extension seat 61 to gradually move closer to the side with the insert 53 on the feeding seat 51. This causes the slot on the extension seat 61 to gradually accommodate the insert 53. After the insert 53 enters the slot, the inclined surface of the insert 53 contacts the end surface of the positioning block 621 away from the elastic element 62. The insert 53 then continues to move closer to the inner wall of the slot. During this process, the inclined surface of the insert 53 lifts the positioning block 621, causing the positioning block 621 to rise. The positioning block 621 then rises further and presses against the elastic element 62, causing the elastic element 62 to gradually deform.

[0083] When the end of the positioning block 621 away from the elastic element 62 moves to abut against the horizontal surface of the insertion block 53, the elastic element 62 is in a deformed state. When the positioning groove 531 on the horizontal surface of the insertion block 53 moves to be directly opposite the end of the positioning block 621 away from the elastic element 62, the inclined surface of the insertion block 53 abuts against the inner wall of the slot, causing the end of the positioning block 621 away from the elastic element 62 to lose the abutting force of the surface of the insertion block 53, causing the elastic element 62 to lose the pressing force of the positioning block 621, and causing the positioning block 621 to spring into the positioning groove 531 with the help of the rebound force of the elastic element 62, fixing the insertion block 53 inside the extension seat 61, fixing the feeding seat 51 and the extension seat 61 together, thereby making the feeding port 511 and the extension space 613 connected, expanding the feed feeding range and preventing the feed from scattering during feeding.

[0084] The feeder pours the feed into the extension space 613. The feed gradually slides to the slope of the sealing plate 56 through the bottom wall of the extension space 613 and the feeding port 511, causing the feed to accumulate between the slope of the sealing plate 56 and the feeding port 511. Then, the feeder manually pulls the drive plate 54 upward, causing the drive plate 54 to rise. The drive plate 54 drives the limit shaft 542 to rise, and the limit shaft 542 drives the lifting plate 55 to rise. The lifting plate 55 drives the sealing plate 56 to rise, so that the end of the sealing plate 56 away from the lifting plate 55 is away from the bottom wall slope of the feeding port 511, thereby releasing the seal of the sealing plate 56 on the feeding port 511. The feed continues to flow along the bottom wall slope of the feeding port 511 until it is poured into the feed box 32. Thus, it is not necessary to open the cage cover 31 during the feeding process, preventing outside air from entering the cage body 3 and preventing feed dust, moisture or foreign objects from entering.

[0085] When the drive plate 54 rises, it simultaneously drives the limiting post 541 to rise. When the end of the limiting post 541 away from the drive plate 54 rises to the same horizontal plane as the end of the limiting rod 63 away from the extension seat 61, the drive plate 54 is manually rotated to rotate 90 degrees clockwise around the limiting shaft 542. This causes the drive plate 54 to rotate the limiting post 541 clockwise by 90 degrees, so that the center of the limiting post 541 is on the same vertical line as the center of the limiting groove 631. Pressing the drive plate 54 causes it to move downwards, which in turn causes the limiting post 541 to move downwards, inserting it into the limiting groove 631. The surface of the limiting post 541 abuts against the inner wall of the limiting groove 631, thus limiting the limiting rod 63 to the drive plate 54 and preventing the personnel from continuously operating the drive plate 54.

[0086] The rising of the sealing plate 56 provides power to the guide plate 561, causing the guide plate 561 to rise. The rising guide plate 561 presses against the elastic element 562, causing it to deform. During the limiting process of the limiting rod 63 on the drive plate 54, the elastic element 562 is in a deformed state. After the feed is added, the feeder continues to pull the drive plate 54 upwards, causing it to rise. The drive plate 54 drives the limiting post 541 upwards, causing it to disengage from the limiting groove 631. When the limiting post 541 is completely disengaged... After leaving the limiting groove 631, rotate the drive plate 54 to move the limiting post 541 away from the limiting rod 63. Then release the drive plate 54 to make the lifting plate 55 lose the tension from the drive plate 54 and the sealing plate 56 lose the power from the lifting plate 55. After the sealing plate 56 loses power, the guide plate 561 loses power and automatically resets through the elastic element 562. The guide plate 561 drives the sealing plate 56 to automatically reset, so that the sealing plate 56 re-seals the feeding port 511.

[0087] The lifting sealing plate 56 can control the opening area of ​​the feeding port 511, adapting to the feeding of different volumes of feed such as pellets and powders, avoiding waste caused by feeding too much at once. In addition, the vertical lifting structure occupies little horizontal space, making it suitable for multi-layer cages 2 and optimizing the equipment layout.

[0088] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A central exhaust vented cage box, characterized by: Includes a cage body (3), inside which a food box (32) is provided, and a feeding mechanism (5) for feeding is provided on one side of the surface of the cage body (3), and an extension mechanism (6) for expanding the feeding range of the feeding mechanism (5) is provided on the side of the feeding mechanism (5) away from the surface of the cage body (3). The feeding mechanism (5) includes a feeding seat (51) disposed on one side of the surface of the cage body (3), a feeding port (511) is provided on one side of the surface of the feeding seat (51), and a sealing plate (56) for sealing the feeding port (511) is slidably disposed on one side of the surface of the feeding seat (51). The extension mechanism (6) includes an extension seat (61) disposed on one side of the surface of the feeding seat (51). An extension space (613) communicating with the feeding port (511) is provided on one side of the surface of the extension seat (61). The extension space (613) is inclined to the bottom wall of the feeding port (511).

2. A central exhaust vent cage according to claim 1, wherein: The feeding mechanism (5) also includes a lifting plate (55) fixed on one side of the surface of the sealing plate (56). A limiting shaft (542) is symmetrically rotatably provided on one side of the surface of the lifting plate (55). A driving plate (54) is fixed at one end of the limiting shaft (542) away from the lifting plate (55). A limiting post (541) is fixed on one side of the surface of the driving plate (54) away from the limiting shaft (542).

3. A central exhaust cage according to claim 1, wherein: The sealing plate (56) has a guide plate (561) symmetrically fixed on one side of its surface, which is slidably disposed inside the feeding seat (51). The guide plate (561) has an elastic element (562) fixed on one side of its surface, which is fixed inside the feeding seat (51). When the sealing plate (56) is not pulled by an external force, one side of the surface of the sealing plate (56) abuts against the inner wall of the feeding port (511).

4. A central exhaust cage according to claim 1, wherein: The extension mechanism (6) also includes a limiting rod (63) symmetrically fixed on one side of the surface of the extension seat (61), and a limiting groove (631) is formed on the surface of the limiting rod (63) away from the extension seat (61).

5. A central exhaust cage according to claim 1, wherein: The feeding seat (51) is symmetrically fixed with a plug (53) inserted into one side of the surface of the extension seat (61) on one side of the surface of the extension seat (61). The plug (53) has an inclined surface on one side of the surface of the extension seat (61), and a positioning groove (531) is provided on one side of the surface of the plug (53).

6. A central exhaust cage according to claim 5, wherein: The extension seat (61) has a positioning block (621) that is slidably engaged in the positioning groove (531) on the side of the surface near the feeding seat (51). The end of the positioning block (621) away from the insertion block (53) is fixed with an elastic element (62) that is fixed in the extension seat (61). When the positioning block (621) is not driven by the insert block (53), the end of the positioning block (621) away from the elastic element (62) is on the same horizontal line as the bottom wall of the positioning groove (531).

7. A central exhaust cage according to claim 6, wherein: The positioning block (621) has guide plates (622) that are slidably disposed inside the extension seat (61) on both sides of its surface.

8. A central exhaust cage according to claim 1, wherein: The feeding seat (51) is symmetrically fixed with an infrared sensor (52) on the surface side inside the cage body (3), and the surface side of the cage body (3) is fixed with a reminder lamp (4) electrically connected with the infrared sensor (52).

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