Biological safety isolation cabin

Abstract

The utility model relates to the technical field of isolation cabins, in particular to a biological safety isolation cabin. A biological safety isolation cabin comprises a cabin body and the like, the cabin body is a square shell with an opening in the top, the right side of the top of the cabin body is fixedly connected with a fixed cover plate, the left side of the top of the fixed cover plate is rotationally connected with a rotating cover plate through a hinge, and the side, away from the fixed cover plate, of the rotating cover plate is in threaded connection with a hand screw; the hand screw can also be screwed into the left side of the top of the cabin body, the left side of the top of the cabin body is detachably connected with a sealing strip in a clamped mode, and the device further comprises a feeding assembly and a purifying assembly. The axial flow fan and the air pump continuously operate and are matched with the filter a and the filter b, circulating purification of air in the cabin is achieved, freshness and safety of the air are guaranteed, a good living environment is provided for small animals, meanwhile, in the feeding process, through a sealing and negative pressure mechanism, workers and pathogenic air in the cabin body are effectively isolated, and the working efficiency is improved. And the safety of workers is greatly protected.

Description

Technical Field

[0001] This utility model relates to the field of isolation chamber technology, and in particular to a biosafety isolation chamber. Background Technology

[0002] Small animals often become ill due to external bacterial infections or accidental ingestion. These pathogens can not only spread to other animals but also pose a threat to human health. Therefore, it is necessary to isolate sick animals when necessary. Patent publication number CN219741512U discloses an animal isolator. By installing a fan, the air circulation inside the device is improved, and viruses are not allowed to accumulate inside. A better living environment for the animals promotes their recovery. The lead screw and nut conveying design allows the food bowl to be delivered into the device with minimal contact with the air inside the enclosure, minimizing the risk of infection for personnel and ensuring operational safety.

[0003] However, some problems arose during implementation. Its internal space is directly connected to the outside, and pathogens could leak out through the ventilation slots in the glass enclosure, posing a threat to people outside. Furthermore, if small animals spill food from their bowls onto the lead screw, it could clog the threads, preventing the nut from moving properly. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a biosafety isolation chamber.

[0005] Technical Solution: A biosafety isolation chamber includes a chamber body, a fixed cover plate, a rotating cover plate, a hand-tightening screw, and a sealing strip. The chamber body is a square shell with an open top. A fixed cover plate is fixedly connected to the right side of the top of the chamber body. A rotating cover plate is rotatably connected to the left side of the fixed cover plate via a hinge. A hand-tightening screw is threadedly connected to the side of the rotating cover plate away from the fixed cover plate. The hand-tightening screw can also be screwed into the left side of the top of the chamber body. A sealing strip is detachably snapped onto the left side of the top of the chamber body. The chamber body also includes a feeding component and a purification component. A feeding component for feeding small animals is provided on both the chamber body and the fixed cover plate. A purification component for purifying the internal air of the chamber is provided on both the feeding component and the fixed cover plate.

[0006] Furthermore, the feeding assembly includes a feeding hopper, a sealing cover, and a feeding trough. The feeding hopper is fixedly connected through the rear side of the fixed cover, and the sealing cover is rotatably connected to the rear top of the feeding hopper. The feeding trough is fixedly connected to the inner right side of the bottom panel of the cabin.

[0007] Furthermore, the purification assembly includes a mounting frame, a fixing seat, a hand-tightening screw, a sealing plate, a protrusion, a valve pipe, an air pump, an exhaust pipe, a filter a, an extraction pipe, an inlet pipe, a connecting block, an axial flow fan, and a filter b. The mounting frame is fixedly connected to the upper front side of the feeding hopper. A sealing plate is slidably installed in the mounting frame, and the sealing plate can penetrate the feeding hopper and insert into the inside of the feeding hopper. A fixing seat is fixedly connected to the top right side of the mounting frame, and a hand-tightening screw is rotatably connected to the fixing seat. A protrusion is fixedly connected to the top rear side of the sealing plate, and the hand-tightening screw can penetrate the protrusion and engage with its threads. A valve pipe is connected to the upper front side of the feeding hopper. An air pump is installed on the top left side of the fixing cover plate. An exhaust pipe is connected to the rear side of the air pump. Filter a is threadedly connected to the end of the exhaust pipe. An extraction pipe is connected to the top of the air pump, and the end of the extraction pipe penetrates the feeding hopper and extends into its inside. Multiple inlet pipes are connected to the left side of the chamber. A connecting block is connected to the upper end of the inlet pipes. An axial flow fan is connected to the top of the connecting block, and filter b is threadedly connected to the top of the axial flow fan.

[0008] Furthermore, it also includes guide rods, push plates, L-shaped mounting plates, lead screws, and servo motors. Two guide rods are fixedly connected vertically between the left and right panels of the cabin, and a push plate is slidably connected between the two guide rods. An L-shaped mounting plate is fixedly connected to the inner wall of the left panel of the cabin. A lead screw is rotatably connected between the right side of the L-shaped mounting plate and the right panel of the cabin. A servo motor is mounted on the L-shaped mounting plate, and the output shaft end of the servo motor is fixedly connected to the left end of the lead screw.

[0009] Furthermore, it also includes an inclined plate, which is fixedly connected inside the feeding trough.

[0010] Furthermore, it also includes an observation window, which is embedded and fixedly connected to the front side panel of the cabin.

[0011] The beneficial effects of this utility model are: the axial flow fan and air pump operate continuously, and together with filter a and filter b, realize the circulation and purification of the air in the chamber, ensuring the freshness and safety of the air, providing a good living environment for small animals. At the same time, during the feeding process, the sealing and negative pressure mechanism effectively isolates the staff from the germs in the chamber, greatly protecting the safety of the staff. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a three-dimensional structural diagram of the feeding trough, guide rod, and lead screw of this utility model.

[0014] Figure 3 This is a three-dimensional structural diagram of the mounting frame, fixing seat, and hand-tightening screw of this utility model.

[0015] Figure 4This is a three-dimensional structural diagram of the air inlet pipe, connecting block, and axial flow fan of this utility model.

[0016] Figure 5 This is a three-dimensional structural cross-sectional view of the feeding trough and inclined plate of this utility model.

[0017] In the attached diagrams: 1. Cabin; 2. Fixed cover plate; 21. Rotating cover plate; 22. Hand-tightening screw; 23. Sealing strip; 31. Feeding hopper; 32. Sealing cover; 33. Feed trough; 41. Mounting frame; 42. Fixed seat; 43. Hand-tightening screw; 44. Sealing plate; 45. Protrusion; 46. Valve pipe; 47. Air pump; 48. Exhaust pipe; 49. Filter a; 410. Suction pipe; 411. Inlet pipe; 412. Connecting block; 413. Axial flow fan; 414. Filter b; 51. Guide rod; 52. Push plate; 53. L-shaped mounting plate; 54. Screw; 55. Servo motor; 6. Inclined plate; 7. Observation window. Detailed Implementation

[0018] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0019] Example: A biosafety isolation chamber, such as Figures 1-5 As shown, the device includes a cabin 1, a fixed cover plate 2, a rotating cover plate 21, a hand-tightening screw 22, and a sealing strip 23. The cabin 1 is a square shell with an open top. The fixed cover plate 2 is fixed to the top right side of the cabin 1 by bolts. The rotating cover plate 21 is rotatably connected to the top left side of the fixed cover plate 2 by a hinge. The side of the rotating cover plate 21 away from the fixed cover plate 2 is threaded with a hand-tightening screw 22. The hand-tightening screw 22 can also be screwed into the top left side of the cabin 1 to lock the rotating cover plate 21. The sealing strip 23 is detachably snapped onto the top left side of the cabin 1. After a long period of use, the sealing strip 23 can be removed and replaced. The device also includes a feeding component and a purification component. The feeding component for feeding small animals is provided on both the cabin 1 and the fixed cover plate 2. The purification component for purifying the internal air of the cabin 1 is provided on both the feeding component and the fixed cover plate 2.

[0020] like Figure 1 , Figure 2 and Figure 3As shown, the feeding assembly includes a feeding hopper 31, a sealing cover 32, and a feeding trough 33. The feeding hopper 31 is fixedly welded through the rear side of the fixed cover plate 2. The sealing cover 32 is rotatably connected to the rear top of the feeding hopper 31. The feeding trough 33 is fixed to the inner right side of the bottom panel of the cabin 1 by bolts.

[0021] like Figure 2 , Figure 3 and Figure 4 As shown, the purification assembly includes a mounting frame 41, a fixing seat 42, a hand-tightening screw 43, a sealing plate 44, a protrusion 45, a valve pipe 46, an air pump 47, an exhaust pipe 48, a filter a 49, an extraction pipe 410, an intake pipe 411, a connecting block 412, an axial flow fan 413, and a filter b 414. The mounting frame 41 is welded and fixed to the upper front side of the feeding hopper 31. The sealing plate 44 is slidably disposed in the mounting frame 41, penetrating the feeding hopper 31 and inserting into its interior. The fixing seat 42 is welded and fixed to the top right side of the mounting frame 41, and a hand-tightening screw 43 is rotatably connected to the fixing seat 42. A protrusion 45 is welded and fixed to the top rear side of the sealing plate 44, and the hand-tightening screw 43 penetrates the protrusion 45 and engages with its thread. A valve pipe 46 is connected to the upper front side of the feeding hopper 31. An air pump 47 is bolted to the top left side of the fixed cover plate 2, and the air pump 47 is connected to the rear side of the fixed cover plate 2. An exhaust pipe 48 is connected, and a filter a49 is threadedly connected to the end of the exhaust pipe 48. An air extraction pipe 410 is connected to the top of the air pump 47. The end of the air extraction pipe 410 passes through the feeding hopper 31 and extends into its interior. Multiple air inlet pipes 411 are connected to the left side of the chamber 1. A connecting block 412 is connected to the upper end of the air inlet pipes 411. An axial flow fan 413 is connected to the top of the connecting block 412. A filter b414 is threadedly connected to the top of the axial flow fan 413. The filter b414 is used to prevent air containing germs in the chamber 1 from overflowing from the axial flow fan 413. The filter b414, axial flow fan 413, connecting block 412, air inlet pipe 411 and chamber are connected in sequence. Both filter a49 and filter b414 have built-in HEPA filters for filtering germs. After a long period of use, filter a49 or filter b414 can be unscrewed and cleaned or replaced.

[0022] First, the staff unscrews the hand-tightening screw 22 from the top left side of the chamber 1, then flips the rotating cover 21 upwards to open it, carefully placing the sick animal into the chamber 1. Next, the hand-tightening screw 22 is reset, pressing the rotating cover 21 firmly against the sealing strip 23 to seal the top opening of the chamber 1. Then, the staff starts the air pump 47, which is connected to the feeding hopper 31 via the suction pipe 410, drawing air out of the chamber 1 and passing it through the exhaust pipe 48 into the filter a49 for purification before exhausting it. Simultaneously, the staff starts the axial flow fan 413. Under the suction of the axial flow fan 413, outside air is injected into the chamber 1 through the filter b414, the axial flow fan 413, the connecting block 412, and the air inlet pipe 411, ensuring a constant flow of fresh air within the chamber 1. When feeding the animal, the staff first turns the hand-tightening screw 43. 43, through cooperation with protrusion 45, pushes sealing plate 44 into feeding hopper 31, sealing the upper part of feeding hopper 31. Then, valve pipe 46 is opened. Since air pump 47 is always working, the upper space of feeding hopper 31 is under negative pressure. Outside air is injected into the upper space of feeding hopper 31 through valve pipe 46 to replace the air there. Air carrying germs is injected into the filter by air pump 47 for purification. Air pump 47 is turned off, and sealing cover 32 is opened to add food for small animals into feeding hopper 31. After adding food, sealing cover 32 is reset, valve pipe 46 is closed, and hand screw 43 is turned to move sealing plate 44 forward to reset, releasing the seal on feeding hopper 31. At this time, the food in feeding hopper 31 will fall into feeding trough 33. During the entire feeding process, the staff will not come into contact with germ-laden air in cabin 1, thus greatly ensuring the safety of the staff.

[0023] like Figure 2 As shown, it also includes guide rods 51, push plates 52, L-shaped mounting plates 53, lead screws 54, and servo motors 55. Two guide rods 51 are welded and fixed between the left and right panels of the cabin 1 at intervals. Push plates 52 are slidably connected between the two guide rods 51. An L-shaped mounting plate 53 is welded and fixed to the inner wall of the left panel of the cabin 1. A lead screw 54 is rotatably connected between the right side of the L-shaped mounting plate 53 and the right panel of the cabin 1. A servo motor 55 is installed on the L-shaped mounting plate 53 by bolts. The output shaft end of the servo motor 55 is fixedly connected to the left end of the lead screw 54.

[0024] Before adding food to the feeding trough 31, the operator can start the servo motor 55, which drives the lead screw 54 to rotate, thereby pushing the push plate 52 to the left to push the small animal away from the feeding trough 33, so as to prevent the small animal from blocking the lower opening of the feeding trough 31.

[0025] like Figure 3 and Figure 5 As shown, it also includes an inclined plate 6, which is snapped and fixed inside the feeding trough 33.

[0026] After the food falls out from the lower opening of the feeding hopper 31, it slides along the inclined plate 6 from the back to the front of the feeding trough 33, thus distributing it evenly in the feeding trough 33 and further preventing the feeding hopper 31 from getting clogged.

[0027] like Figure 1 As shown, it also includes an observation window 7, which is embedded and fixedly connected to the front side panel of the cabin 1.

[0028] By setting up observation window 7, staff can easily observe the small animals in real time.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A biosafety isolation cabin, comprising a cabin body (1), a fixed cover plate (2), a rotating cover plate (21), a hand screw (22) and a sealing strip (23), the cabin body (1) is a square shell with an open top, the cabin body (1) is fixedly connected with the fixed cover plate (2) on the right side of the top, the fixed cover plate (2) is rotatably connected with the rotating cover plate (21) on the left side of the top through a hinge, the side of the rotating cover plate (21) away from the fixed cover plate (2) is threadedly connected with the hand screw (22), the hand screw (22) can also be screwed into the left side of the top of the cabin body (1), and the left side of the top of the cabin body (1) is detachably clamped with the sealing strip (23), characterized in that, The feeding assembly and the purification assembly are arranged on the cabin (1) and the fixed cover plate (2) together, the feeding assembly and the fixed cover plate (2) are arranged on the cabin (1) together, and the internal air of the cabin (1) is purified.

2. A biocontainment chamber according to claim 1, wherein, The feeding assembly comprises a feeding hopper (31), a sealing cover (32) and a feeding trough (33), the fixed cover plate (2) is fixedly connected with the feeding hopper (31) through the rear side, the feeding hopper (31) is rotatably connected with the sealing cover (32) at the top rear side, and the feeding trough (33) is fixedly connected to the right inner wall of the bottom panel of the cabin (1).

3. A biocontainment chamber according to claim 2, wherein, The purification assembly comprises an installation frame (41), a fixed seat (42), a hand screw rod (43), a sealing plate (44), a protruding block (45), a valve pipe (46), an air pump (47), an exhaust pipe (48), a filter a (49), an air suction pipe (410), an air inlet pipe (411), a connecting block (412), an axial flow fan (413) and a filter b (414), the installation frame (41) is fixedly connected to the upper front side of the feeding hopper (31), the sealing plate (44) is slidably arranged in the installation frame (41), the sealing plate (44) can penetrate through the feeding hopper (31) and is inserted into the inner side of the feeding hopper (31), the fixed seat (42) is fixedly connected to the top right side of the installation frame (41), the hand screw rod (43) is rotatably connected to the fixed seat (42), the protruding block (45) is fixedly connected to the top rear side of the sealing plate (44), the hand screw rod (43) can penetrate through the protruding block (45) and is threadedly connected therewith, the valve pipe (46) is connected to the upper front side of the feeding hopper (31), the air pump (47) is installed on the top left side of the fixed cover plate (2), the air pump (47) is connected with the exhaust pipe (48) at the rear side, the filter a (49) is threadedly connected to the end of the exhaust pipe (48), the air suction pipe (410) is connected to the top of the air pump (47), the end of the air suction pipe (410) penetrates through the feeding hopper (31) and extends into the inner side thereof, a plurality of air inlet pipes (411) are connected to the left side of the cabin (1), the connecting block (412) is connected to the upper ends of the air inlet pipes (411) together, the axial flow fan (413) is connected to the top of the connecting block (412), and the filter b (414) is threadedly connected to the top of the axial flow fan (413).

4. A biocontainment chamber according to claim 3, wherein, The cabin (1) is fixedly connected with two guide rods (51) between the left and right panels in an upper and lower spaced manner, the push plate (52) is slidably connected between the two guide rods (51), the L-shaped mounting plate (53) is fixedly connected to the inner wall of the left panel of the cabin (1), the screw rod (54) is rotatably connected between the right panel of the cabin (1) and the right part of the L-shaped mounting plate (53), the servo motor (55) is installed on the L-shaped mounting plate (53), and the output shaft end of the servo motor (55) is fixedly connected with the left end of the screw rod (54).

5. A biocontainment chamber according to claim 4, wherein, The cabin (1) is fixedly connected with two guide rods (51) between the left and right panels in an upper and lower spaced manner, the push plate (52) is slidably connected between the two guide rods (51), the L-shaped mounting plate (53) is fixedly connected to the inner wall of the left panel of the cabin (1), the screw rod (54) is rotatably connected between the right panel of the cabin (1) and the right part of the L-shaped mounting plate (53), the servo motor (55) is installed on the L-shaped mounting plate (53), and the output shaft end of the servo motor (55) is fixedly connected with the left end of the screw rod (54).

6. A biocontainment chamber according to claim 5, wherein, The cabin (1) is fixedly connected with two guide rods (51) between the left and right panels in an upper and lower spaced manner, the push plate (52) is slidably connected between the two guide rods (51), the L-shaped mounting plate (53) is fixedly connected to the inner wall of the left panel of the cabin (1), the screw rod (54) is rotatably connected between the right panel of the cabin (1) and the right part of the L-shaped mounting plate (53), the servo motor (55) is installed on the L-shaped mounting plate (53), and the output shaft end of the servo motor (55) is fixedly connected with the left end of the screw rod (54). The cabin (1) is fixedly connected with two guide rods (51) between the left and right panels in an upper and lower spaced manner, the push plate (52) is slidably connected between the two guide rods (51), the L-shaped mounting plate (53) is fixedly connected to the inner wall of the left panel of the cabin (1), the screw rod (54) is rotatably connected between the right panel of the cabin (1) and the right part of the L-shaped mounting plate (53), the servo motor (55) is installed on the L-shaped mounting plate (53), and the output shaft end of the servo motor (55) is fixedly connected with the left end of the screw rod (54).

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