Automatic ventilating and cleaning device for experimental animal cage

Abstract

The utility model relates to the technical field of experimental animal cage ventilation, in particular to an automatic ventilation cleaning device of an experimental animal cage. The cage comprises a supporting frame and a cage body, a fixing groove is formed in the surface of the inner wall of the supporting frame, the cage body is connected with the bottom face of the inner wall of the fixing groove in a clamped mode, two ventilation pipes are arranged on one side of the supporting frame, butt joints are fixedly communicated with the surfaces of the ventilation pipes, and the two ends of one side of the cage body are fixedly communicated with an air inlet pipe and an air outlet pipe respectively. An adjusting mechanism is arranged at the position, corresponding to the air inlet pipe, of the upper end surface of the cage body and comprises an inlaying frame. The experimental animal cage solves the problems that when an experimental animal cage is operated and used, due to the fact that a common experimental animal cage is usually in a closed environment, air in the cage can be cleaned and ventilated by means of ventilation cleaning equipment, meanwhile, conveyed air is filtered by means of a filter plate, and due to long-time use, the experimental animal cage cannot be used for a long time. And the problem that the filter pad is inconvenient to replace and limit is solved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation technology for laboratory animal cages, and in particular to an automatic ventilation and cleaning device for laboratory animal cages. Background Technology

[0002] Automatic ventilation and cleaning devices for laboratory animal cages are equipment used for the feeding and management of laboratory animals. Their purpose is to provide a suitable environment, ensure the health of the animals, and ensure the accuracy of experimental data. They generally include automatic ventilation, temperature and humidity control, and automatic cleaning systems to ensure air circulation in the cages, prevent the accumulation of odors and exhaust gases, thereby providing fresh air and reducing stress responses in the animals.

[0003] Existing technologies, such as the utility model patent with publication number CN204466551U, disclose a novel laboratory animal cage. This patent includes a cage lid and a cage box. The cage lid is equipped with a water feeding area and a life-support window. The bottom of the cage box has an opening and a receiving part for holding bedding material. The receiving part includes a main tray and an auxiliary tray. A detachable partition plate is installed inside the cage box to separate the cage space into a main chamber and a secondary chamber for placing the animal. The main tray and auxiliary tray are located in the corresponding main chamber and secondary chamber, respectively. The advantage of this utility model is that it eliminates the need to remove the animal from the cage box, reducing the workload of staff and improving work efficiency.

[0004] During the experimental work, it was found that when operating and using laboratory animal cages, since the cages are usually in a closed environment, ventilation and cleaning equipment is used to clean and ventilate the air inside the cages, and filter plates are used to filter the delivered air. However, after long-term use, it becomes inconvenient to replace the filter pads. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in the existing technology, when operating laboratory animal cages, since the cages are usually in a closed environment, ventilation and cleaning equipment is used to clean and ventilate the air inside the cages, and filter plates are used to filter the delivered air. However, after long-term use, it becomes inconvenient to replace the filter pads.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic ventilation and cleaning device for laboratory animal cages, comprising a support frame and a cage body. A fixing groove is formed on the inner wall surface of the support frame, and the cage body is engaged with the bottom surface of the inner wall of the fixing groove. Two ventilation pipes are provided on one side of the support frame, and each ventilation pipe has a connecting joint fixedly connected to its surface. An air inlet pipe and an air outlet pipe are fixedly connected to both ends of one side of the cage body, respectively. An adjustment mechanism is provided on the upper surface of the cage body corresponding to the position of the air inlet pipe. The adjustment mechanism includes an inlay frame, and the two side surfaces of the inlay frame are in contact with the cage... The upper inner wall of the cage body is fixedly connected, the inner wall of the inlay frame is fixedly connected to the air inlet pipe and the interior of the cage body, a support frame is inserted into the inner wall of the inlay frame, a filter pad is provided on the inner wall of the support frame, the filter pad is an activated carbon pad, a pull plate is fixedly connected to the upper surface of the support frame, a slot is provided on the upper surface of the support frame, a positioning rod is fixedly connected to the surface of the cage body, a limit post is fixedly connected to the bottom of the arc surface of the positioning rod, the cross section of the limit post is cross-shaped, a locking plate is slidably connected to the arc surface of the limit post, and one lower surface of the locking plate is engaged with the inner wall of the slot.

[0007] The effect achieved by the above components is as follows: When operating the cage body of experimental animals in the laboratory, it is necessary to carry out automatic ventilation and cleaning operations inside the cage body. At this time, automatic ventilation can be carried out by means of the ventilation pipe set on one side of the support frame. The ventilation pipe delivers air to the cage body through the air inlet pipe, and then exhausts carbon dioxide through the air outlet pipe. During this process, the filter pad set on one side of the air inlet pipe can be replaced and limited by the adjustment mechanism, which helps to better carry out ventilation and cleaning operations.

[0008] Preferably, a pull rod is fixedly connected to the surface of the card plate, and the length of the pull rod is adapted to the cross-sectional dimensions of the card plate.

[0009] The effect achieved by the above components is that when the position of the clamping plate is stretched and adjusted, the pull rod fixed on the surface of the clamping plate can be used for auxiliary operation.

[0010] Preferably, a sealing ring is fixedly connected to the lower surface of the upper end of the support frame, and a sealing groove is formed on the upper surface of the inlay frame, with the inner wall of the sealing groove engaging with the surface of the sealing ring.

[0011] The effect achieved by the above components is that, by means of the snap-fit ​​limiting between the sealing groove and the sealing ring, the sealing performance between the inlay frame and the load-bearing frame can be effectively increased.

[0012] Preferably, a spring is fitted onto the arc surface of the positioning rod, and the two ends of the spring are fixedly connected to the clamping plate and the positioning rod, respectively.

[0013] The effect achieved by the above components is that the squeezing force generated by the spring can squeeze and fix the position of the clamping plate, preventing the clamping plate from loosening.

[0014] Preferably, both the inlet and outlet pipes are provided with a closing mechanism on their arc surfaces. The closing mechanism includes a collar, the inner wall of which is fixedly connected to the arc surface of the outlet pipe. A rotating shaft is threaded onto the arc surface of the collar, and a sliding ring is slidably connected to the arc surface of the collar. One side of the sliding ring is rotatably connected to one end surface of the rotating shaft. A connecting frame is fixedly connected to the upper surface of the sliding ring, and a connecting plate is rotatably connected to the inner wall of the connecting frame. A closing cover is fixedly connected to the upper end of the connecting plate, and the cross-sectional dimensions of the closing cover are adapted to the cross-sectional dimensions of the outlet and inlet pipes.

[0015] The aforementioned components achieve the following effects: during the ventilation and cleaning of the cage body, the air inlet and outlet pipes provided on one side of the cage body will be used for auxiliary ventilation, and when not in use, the closing mechanism provided on the surface of the air inlet and outlet pipes will be used for auxiliary sealing.

[0016] Preferably, both ends of the inner wall of the connecting frame are fitted with coil springs, and the two ends of the coil springs are fixedly connected to the connecting frame and the connecting plate, respectively.

[0017] The effect achieved by the above components is that the torsional force generated by the coil spring can compress and protect the position of the closed cover, which helps to better protect and limit the position of the closed cover.

[0018] Preferably, the arc surface of the rotating shaft is provided with a plurality of auxiliary grooves, and the plurality of auxiliary grooves are evenly distributed on the surface of the rotating shaft.

[0019] The effect achieved by the above-mentioned components is that, during the rotation of the shaft, the auxiliary grooves on the surface of the shaft can be used to increase friction, making it easier to better limit the rotation of the shaft.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] In this invention, by operating the adjustment mechanism, the air delivered by the air inlet pipe can be connected with the filter plate. At the same time, the insertion limit between the support frame and the inlay frame can limit the replacement of the filter pad after long-term use, thereby helping to avoid overuse of the filter pad and inconvenience in air filtration and cleaning operations.

[0022] In this invention, the opening and closing of the air inlet and outlet pipes can be conveniently and effectively achieved by operating the closing mechanism. The sliding rings on the surfaces of the air outlet and inlet pipes move and rotate, thereby allowing the closing cover to open, close, and seal the air outlet and inlet pipes. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0025] Figure 3 This is a schematic diagram of the disassembled structure of the adjustment mechanism of this utility model;

[0026] Figure 4 This is a schematic diagram of the closing mechanism of this utility model.

[0027] Legend: 1. Support frame; 2. Fixing groove; 3. Cage body; 4. Adjustment mechanism; 401. Bearing frame; 402. Filter pad; 403. Inlay frame; 404. Pull plate; 405. Slot; 406. Card plate; 407. Positioning rod; 408. Spring; 409. Limiting post; 410. Sealing ring; 411. Sealing groove; 412. Pull rod; 5. Closing mechanism; 51. Collar; 52. Sliding ring; 53. Rotating shaft; 54. Auxiliary groove; 55. Connecting frame; 56. Connecting plate; 57. Closing cover; 58. Coil spring; 6. Ventilation pipe; 7. Connecting joint; 8. Air inlet pipe; 9. Air outlet pipe. Detailed Implementation

[0028] Reference Figures 1 to 4 As shown, this utility model provides a technical solution: an automatic ventilation and cleaning device for laboratory animal cages, including a support frame 1 and a cage body 3. The inner wall surface of the support frame 1 is provided with a fixing groove 2. The cage body 3 is engaged with the bottom surface of the inner wall of the fixing groove 2. Two ventilation pipes 6 are provided on one side of the support frame 1. The surfaces of the ventilation pipes 6 are fixedly connected with connectors 7. The two ends of one side of the cage body 3 are respectively fixedly connected with an air inlet pipe 8 and an air outlet pipe 9. An adjustment mechanism 4 is provided on the upper surface of the cage body 3 corresponding to the position of the air inlet pipe 8. The arc surfaces of the air inlet pipe 8 and the air outlet pipe 9 are both provided with closing mechanisms 5.

[0029] The specific settings and functions of its adjustment mechanism 4 and closing mechanism 5 will be explained below.

[0030] Reference Figure 2 and Figure 4As shown in this embodiment: the adjustment mechanism 4 includes an inlay frame 403, the two side surfaces of the inlay frame 403 are fixedly connected to the upper inner wall of the cage body 3, the inner wall of the inlay frame 403 is fixedly connected to the air inlet pipe 8 and the interior of the cage body 3, a support frame 401 is inserted into the inner wall of the inlay frame 403, a filter pad 402 is provided on the inner wall of the support frame 401, the filter pad 402 is an activated carbon pad, a pull plate 404 is fixedly connected to the upper surface of the support frame 401, a slot 405 is provided on the upper surface of the support frame 401, a positioning rod 407 is fixedly connected to the surface of the cage body 3, and a limit post 409 is fixedly connected to the bottom of the arc surface of the positioning rod 407. The limiting post 409 has a cross-shaped cross section. The arc surface of the limiting post 409 is slidably connected to the clamping plate 406. The lower surface of one side of the clamping plate 406 is engaged with the inner wall of the clamping groove 405. The surface of the clamping plate 406 is fixedly connected to the pull rod 412. The length of the pull rod 412 is adapted to the cross-sectional dimensions of the clamping plate 406. The lower surface of the upper end of the bearing frame 401 is fixedly connected to the sealing ring 410. The upper surface of the inlay frame 403 is provided with a sealing groove 411. The inner wall of the sealing groove 411 is engaged with the surface of the sealing ring 410. The arc surface of the positioning rod 407 is fitted with a spring 408. The two ends of the spring 408 are fixedly connected to the clamping plate 406 and the positioning rod 407, respectively.

[0031] Reference Figure 4 As shown in this embodiment: the closing mechanism 5 includes a collar 51, the inner wall of the collar 51 is fixedly connected to the arc surface of the air outlet pipe 9, the arc surface of the collar 51 is threadedly connected to a rotating shaft 53, the arc surface of the collar 51 is slidably connected to a sliding ring 52, one side of the sliding ring 52 is rotatably connected to one end surface of the rotating shaft 53, the upper end surface of the sliding ring 52 is fixedly connected to a connecting frame 55, the inner wall of the connecting frame 55 is rotatably connected to a connecting plate 56, the upper end of the connecting plate 56 is fixedly connected to a closing cover 57, the cross-sectional dimensions of the closing cover 57 are adapted to the cross-sectional dimensions of the air outlet pipe 9 and the air inlet pipe 8, both ends of the inner wall of the connecting frame 55 are fitted with coil springs 58, the two ends of the coil springs 58 are fixedly connected to the connecting frame 55 and the connecting plate 56 respectively, and the arc surface of the rotating shaft 53 is provided with a number of auxiliary grooves 54, which are evenly distributed on the surface of the rotating shaft 53.

[0032] Working principle: During the operation and use of animal cages in the laboratory, fresh air is delivered to the air inlet pipe 8 via the ventilation pipe 6 on one side of the support frame 1 and the connector 7. The air is then filtered and cleaned by the filter pad 402 in the adjustment mechanism 4. Simultaneously, carbon dioxide is expelled from the cage via the air outlet pipe 9 on the side wall of the cage body 3, thus forming a closed-loop ventilation environment. After prolonged use, the filter pad 402 can be replaced using the adjustment mechanism 4. To do this, first pull the arc-shaped locking plate 406 on the positioning rod 407, allowing the locking plate 406 to overcome the squeezing force generated by the spring 408 and engage with the slot 405 on the surface of the support frame 401. After separating the inner wall of the support frame 401 from the inner wall of the inlay frame 403, the filter pad 402 that is snapped onto the inner wall of the support frame 401 is replaced and positioned. Then, the replaced filter pad 402 is placed in the support frame 401, and then the entire support frame 401 is placed in the inlay frame 403. Finally, the pull rod 412 on the surface of the clamping plate 406 is pulled, so that the clamping plate 406 rotates along the positioning rod 407. At the same time, the cross-shaped limiting post 409 on the arc surface of the positioning rod 407 is used to snap and fix it. The squeezing force generated by the spring 408 squeezes and fixes the position of the clamping plate 406, preventing the clamping plate 406 from loosening or shifting. This allows the support frame 401 and the inlay frame 403 to be better fixed and protected during operation.

[0033] After ventilating, filtering and cleaning the air inside the entire cage body 3, in order to facilitate the sealing of the air inlet pipe 8 and the air outlet pipe 9, the closing mechanism 5 set on the arc surface of the air inlet pipe 8 and the air outlet pipe 9 is used for auxiliary operation. Rotate the shaft 53 inside the arc surface collar 51 of the air inlet pipe 8 and the outlet pipe, so that the shaft 53 drives the sliding ring 52 to move along the arc surface of the collar 51. After reaching the appropriate position, flip the connecting plate 56 inside the connecting frame 55, so that the connecting plate 56 drives the closing cover 57 to close the air inlet pipe 8 and the outlet pipe. Then rotate the shaft 53, so that the shaft 53 drives the sliding ring 52 to move in the opposite direction. At this time, the entire closing cover 57 can be squeezed and fixed with the air inlet pipe 8 and the air outlet pipe 9.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An automatic ventilation cleaning device for an experimental animal cage, comprising a support frame (1), a cage body (3), characterized in that: The inner wall surface of the support frame (1) is provided with a fixed groove (2), the cage body (3) is connected with the inner wall bottom surface of the fixed groove (2), one side of the support frame (1) is provided with two ventilation pipes (6), the surface of the ventilation pipe (6) is fixedly connected with a butt joint (7), one side of the cage body (3) is fixedly connected with an air inlet pipe (8) and an air outlet pipe (9) at both ends, respectively, the upper end surface of the cage body (3) is provided with an adjusting mechanism (4) corresponding to the position of the air inlet pipe (8), the adjusting mechanism (4) comprises an inlay frame (403), the both side surfaces of the inlay frame (403) are fixedly connected with the upper end inner wall of the cage body (3), the inner wall of the inlay frame (403) is fixedly connected with the inside of the air inlet pipe (8) and the cage body (3), the inner wall of the inlay frame (403) is inserted with a bearing frame (401), the inner wall of the bearing frame (401) is provided with a filter pad (402), the filter pad (402) is an activated carbon pad, the upper end surface of the bearing frame (401) is fixedly connected with a pull plate (404), the upper end surface of the bearing frame (401) is provided with a clamping groove (405), the surface of the cage body (3) is fixedly connected with a positioning rod (407), the circular arc surface bottom end of the positioning rod (407) is fixedly connected with a limiting column (409), the cross section of the limiting column (409) is cross-shaped, the circular arc surface of the limiting column (409) is slidably connected with a clamping plate (406), one side of the lower surface of the clamping plate (406) is clamped with the inner wall of the clamping groove (405).

2. The automatic ventilating and cleaning device for experimental animal cages according to claim 1, characterized in that: The surface of the clamping plate (406) is fixedly connected with a pull rod (412), the length size of the pull rod (412) is matched with the cross section size of the clamping plate (406).

3. The automatic ventilating and cleaning device for experimental animal cages according to claim 1, characterized in that: The upper end lower surface of the bearing frame (401) is fixedly connected with a sealing ring (410), the upper surface of the inlay frame (403) is provided with a sealing groove (411), the inner wall of the sealing groove (411) is clamped with the surface of the sealing ring (410).

4. The automatic ventilating and cleaning device for experimental animal cages according to claim 1, characterized in that: The circular arc surface of the positioning rod (407) is sleeved with a spring (408), the both ends of the spring (408) are fixedly connected with the clamping plate (406) and the positioning rod (407) respectively.

5. The automatic ventilating and cleaning device for experimental animal cages according to claim 1, characterized in that: The circular arc surfaces of the air inlet pipe (8) and the air outlet pipe (9) are provided with a closing mechanism (5), the closing mechanism (5) comprises a sleeve ring (51), the inner wall of the sleeve ring (51) is fixedly connected with the circular arc surface of the air outlet pipe (9), the circular arc surface of the sleeve ring (51) is threadedly connected with a rotating shaft (53), the circular arc surface of the sleeve ring (51) is slidably connected with a sliding ring (52), one side of the sliding ring (52) is rotatably connected with one end surface of the rotating shaft (53), the upper end surface of the sliding ring (52) is fixedly connected with a connecting frame (55), the inner wall of the connecting frame (55) is rotatably connected with a connecting plate (56), the upper end of the connecting plate (56) is fixedly connected with a closing cover (57), the cross section size of the closing cover (57) is matched with the cross section size of the air outlet pipe (9) and the air inlet pipe (8).

6. An automatic ventilating and cleaning device for an experimental animal cage according to claim 5, wherein: The inner wall of the connecting frame (55) is sleeved with a coil spring (58) at both ends, and the two ends of the coil spring (58) are fixedly connected with the connecting frame (55) and the connecting plate (56) respectively.

7. The automatic ventilating and cleaning device for experimental animal cages according to claim 5, characterized in that: The arc surface of the rotating shaft (53) is provided with a plurality of auxiliary grooves (54), and the plurality of auxiliary grooves (54) are uniformly distributed on the surface of the rotating shaft (53).

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