Biological safety cabinet for biological detection
By introducing telescopic and auxiliary components into the biosafety cabinet, the problem of inconvenient cleaning caused by biological sample residues has been solved, and the workbench can be easily disassembled and air can be circulated, thereby improving cleaning efficiency and the effectiveness of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING YUNGEN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-17
AI Technical Summary
After biological testing, some biological samples remain on the workbench of existing biosafety cabinets, making cleaning inconvenient. Staff have to bend down to enter the cabinet to clean them thoroughly.
The design incorporates telescopic and auxiliary components, including a worktable, a movable seat, a screw, a motor, a slide, a slider, a ventilation duct, a transmission block, a sealing seat, and a fan. The motor drives the screw to rotate, which in turn causes the worktable to extend and retract. Combined with the sealing seat and the fan, this allows for easy disassembly of the worktable and facilitates air circulation.
The device enables easy disassembly and cleaning of the workbench, solving the problem of sample residue. Furthermore, the combination of the fan and the sealing seat improves the device's flexibility and cleaning efficiency.
Smart Images

Figure CN224127314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biological detection technology, specifically a biosafety cabinet for biological detection. Background Technology
[0002] A biosafety cabinet is a safety protection device used in laboratories. It is designed to protect operators, the laboratory environment, and the experimental materials themselves when handling experimental materials that may generate infectious aerosols and splashes. However, after biological testing, some biological samples remain on the workbench inside the existing biosafety cabinet. Due to the depth of the cabinet, the workbench is located inside the cabinet, which requires staff to bend down and enter the cabinet to clean and wipe it, making the operation inconvenient and difficult to clean thoroughly. Utility Model Content
[0003] The purpose of this utility model is to provide a biosafety cabinet for biological testing, in order to solve the problem mentioned in the background art that after biological testing, some biological samples remain on the workbench inside the biosafety cabinet. The workbench is located inside the cabinet, and the depth of the cabinet affects the operator's ability to bend down and enter the cabinet to clean and wipe it, which is inconvenient and difficult to clean thoroughly.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model is a biosafety cabinet for biological detection, comprising:
[0006] Main components, including the main body of the biosafety cabinet;
[0007] The telescopic component includes a worktable, a movable base, a screw, a motor, a slide rail, and a slider;
[0008] The motor is mounted on the surface of the biosafety cabinet body, the screw is fixedly connected to the side end of the motor, the slide is opened in the inner bottom of the biosafety cabinet body, the slider is embedded in the slide, the movable seat is fixedly connected to the top of the slider, and the worktable is located on the top of the movable seat.
[0009] Furthermore, both the groove and the slider have an inverted T-shaped structure, and the surface of the slider is in close contact with the inner wall of the groove.
[0010] The top of the movable seat is fixedly connected to a fixing block, and the bottom of the worktable is provided with a fixing groove corresponding to the fixing block. The worktable and the movable seat are connected by a detachable structure.
[0011] Furthermore, grooves are provided at both ends of the workbench, and the interior of the workbench has an isosceles trapezoidal structure.
[0012] Furthermore, it also includes auxiliary components;
[0013] The auxiliary components include a ventilation duct, a second motor, a transmission block, a sealing seat, a fan, a dust filter, and a transmission shaft;
[0014] The ventilation duct is fixedly connected to both sides of the main body of the biosafety cabinet. The dust filter is embedded inside the ventilation duct. The second motor is set on the surface of the main body of the biosafety cabinet. The drive shaft is fixedly connected to the side end of the second motor. The drive block is sleeved on the surface of the drive shaft. The sealing seat is fixedly connected to the side end of the drive block. The fan is set on the surface of the sealing seat.
[0015] Furthermore, the side end of the transmission block is in contact with the surface of the biosafety cabinet body, and the thread directions of the two ends of the transmission shaft are opposite.
[0016] Furthermore, a limiting block is fixed to the surface of the drive shaft, and the surface of the sealing seat is in close contact with the vent of the ventilation pipe.
[0017] This utility model has the following beneficial effects:
[0018] I. This utility model includes a motor, a movable base, and a worktable. The motor can control the movable base to move the worktable out of the main body of the biosafety cabinet. With the plug-in connection between the fixed block and the worktable, the worktable can be lifted and removed through the groove. This step facilitates the cleaning of sample residues, is simple to operate, and solves the problem of inconvenient cleaning and easy sample residue.
[0019] II. Based on the above-mentioned beneficial effects, the device is equipped with a fan, a second motor, and a sealing seat. When the fan is running, it can realize the internal and external air exchange. The second motor drives the transmission shaft to rotate, and the two transmission blocks will drive the sealing seat to move towards each other. The sealing seat moves outward and enters the ventilation pipe to achieve spatial sealing. This step allows for free switching of working states, which is convenient and improves the effectiveness of the device. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is the front view of the present invention;
[0022] Figure 2 This is a front view of the telescopic component of this utility model;
[0023] Figure 3This is the front view of the slider of this utility model;
[0024] Figure 4 This is a front view of the auxiliary component of this utility model.
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 11. Main body of the biosafety cabinet;
[0027] 21. Workbench; 211. Fixing block; 212. Groove; 22. Movable seat; 23. Screw; 24. Motor 1; 25. Slide rail; 26. Slider;
[0028] 31. Ventilation duct; 32. Motor II; 33. Transmission block; 34. Sealing seat; 35. Fan; 36. Dust filter; 37. Limiting block; 38. Drive shaft. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0031] Please see Figure 1-4 As shown, this utility model is a biosafety cabinet for biological detection, comprising:
[0032] The main components include the main body of the biosafety cabinet 11;
[0033] The main body of the biosafety cabinet 11 is used for laboratory biological testing;
[0034] The telescopic component includes a worktable 21, a movable seat 22, a screw 23, a motor 24, a slide 25, and a slider 26.
[0035] Motor 24 is mounted on the surface of the biosafety cabinet body 11. Screw 23 is fixedly connected to the side end of motor 24. Slide 25 is opened in the inner bottom of the biosafety cabinet body 11. Slider 26 is embedded in the inside of slide 25. Movable seat 22 is fixedly connected to the top of slider 26. Workbench 21 is mounted on the top of movable seat 22.
[0036] Motor 24 is used to drive screw 23 to rotate. Screw 23 is used to engage slider 26 to control slider 26 to move. Slide 25 is used to limit and guide slider 26. Slider 26 is used to fix and connect to moving seat 22. Moving seat 22 is used to drive worktable 21 to extend and retract.
[0037] Both the groove 25 and the slider 26 have an inverted T-shaped structure, and the surface of the slider 26 is in close contact with the inner wall of the groove 25.
[0038] The tight fit allows the slider 26 to move within the slide groove 25 in a limited manner, ensuring the stability of the worktable 21.
[0039] The top of the movable seat 22 is fixedly connected to a fixing block 211, and the bottom of the worktable 21 is provided with a fixing groove corresponding to the fixing block 211. The worktable 21 and the movable seat 22 are connected by a split structure.
[0040] The fixing block 211, in conjunction with the fixing groove, allows the workbench 21 to be removed from the top of the movable seat 22, making cleaning more convenient.
[0041] Both ends of the workbench 21 are provided with grooves 212, and the interior of the workbench 21 has an isosceles trapezoidal structure.
[0042] The groove 212 facilitates manual disassembly and assembly of the workbench 21 by staff, and the isosceles trapezoidal structure facilitates the pouring out of biological samples from the workbench 21.
[0043] Working principle: The main body 11 of the biosafety cabinet is used for laboratory biological detection;
[0044] When the motor 24 is started, the screw 23 is driven to rotate. Under the meshing connection between the screw 23 and the slider 26, the slide groove 25 limits the slider 26. The slider 26 can drive the moving seat 22 to move out of the biosafety cabinet body 11. Under the plug-in connection between the fixed block 211 and the worktable 21, the worktable 21 can be lifted up through the groove 212 to remove it.
[0045] This step facilitates the cleaning of sample residues, is simple to operate, and solves the problem of sample residues being difficult to clean.
[0046] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, also includes auxiliary components;
[0047] The auxiliary components include a ventilation duct 31, a second motor 32, a transmission block 33, a sealing seat 34, a fan 35, a dust filter 36, and a transmission shaft 38;
[0048] Ventilation duct 31 is fixedly connected to both sides of the biosafety cabinet body 11. Dust filter 36 is embedded inside the ventilation duct 31. Motor 2 32 is set on the surface of the biosafety cabinet body 11. Drive shaft 38 is fixedly connected to the side end of motor 2 32. Drive block 33 is sleeved on the surface of drive shaft 38. Sealing seat 34 is fixedly connected to the side end of drive block 33. Fan 35 is set on the surface of sealing seat 34.
[0049] Ventilation duct 31 is used for ventilation, dust filter 36 is used to intercept dust, motor 32 is used to drive transmission shaft 38 to rotate, transmission shaft 38 is used to mesh with transmission block 33 to drive sealing seat 34 to move, sealing seat 34 is used to connect transmission block 33 and fan 35, fan 35 is used to accelerate ventilation speed.
[0050] The side end of the transmission block 33 is in contact with the surface of the biosafety cabinet body 11, and the threads on the two ends of the transmission shaft 38 are in opposite directions;
[0051] With the threads in opposite directions, the two sealing seats 34 can be controlled to move towards each other, which facilitates the control device to perform ventilation or sealing.
[0052] The surface of the drive shaft 38 is fixed with a limiting block 37, and the surface of the sealing seat 34 is tightly fitted with the ventilation opening of the ventilation pipe 31;
[0053] The limiting block 37 limits the sealing seat 34 and fits tightly, which can make the sealing seat 34 better at blocking the vent.
[0054] Working principle: When the transmission block 33 is attached to the limit block 37, the fan 35 runs and can exchange air inside and outside the device through the ventilation pipe 31. The dust filter 36 is used to intercept dust and play a dust prevention role. The start motor 32 drives the transmission shaft 38 to rotate. Under the meshing connection between the bidirectional threaded transmission shaft 38 and the transmission block 33, the two transmission blocks 33 will drive the sealing seat 34 to move towards each other. The sealing seat 34 moves outward and enters the ventilation pipe 31 to achieve spatial sealing.
[0055] This step allows for easy switching between operating states, resulting in better device performance.
[0056] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A biosafety cabinet for biological detection, characterized in that, include: The main component includes the main body of the biosafety cabinet (11); The telescopic component includes a worktable (21), a movable seat (22), a screw (23), a motor (24), a slide (25), and a slider (26); The motor (24) is disposed on the surface of the biosafety cabinet body (11), the screw (23) is fixedly connected to the side end of the motor (24), the slide (25) is opened in the inner bottom of the biosafety cabinet body (11), the slider (26) is embedded in the inside of the slide (25), the movable seat (22) is fixedly connected to the top of the slider (26), and the worktable (21) is disposed on the top of the movable seat (22).
2. The biological safety cabinet for biological detection according to claim 1, wherein Both the groove (25) and the slider (26) are inverted T-shaped structures, and the surface of the slider (26) is in close contact with the inner wall of the groove (25).
3. The biological safety cabinet for biological detection according to claim 1, wherein The top of the movable seat (22) is fixedly connected to a fixing block (211), and the bottom of the worktable (21) is provided with a fixing groove corresponding to the fixing block (211). The worktable (21) and the movable seat (22) are connected by a split structure.
4. The biological safety cabinet for biological detection according to claim 1, wherein, The workbench (21) has grooves (212) at both ends, and the interior of the workbench (21) has an isosceles trapezoidal structure.
5. The biological safety cabinet for biological detection according to claim 1, wherein It also includes auxiliary components; The auxiliary components include a ventilation duct (31), a second motor (32), a transmission block (33), a sealing seat (34), a fan (35), a dust filter (36), and a transmission shaft (38); The ventilation duct (31) is fixedly connected to both sides of the biosafety cabinet body (11). The dust filter (36) is embedded inside the ventilation duct (31). The second motor (32) is set on the surface of the biosafety cabinet body (11). The drive shaft (38) is fixedly connected to the side end of the second motor (32). The drive block (33) is sleeved on the surface of the drive shaft (38). The sealing seat (34) is fixedly connected to the side end of the drive block (33). The fan (35) is set on the surface of the sealing seat (34).
6. The biological safety cabinet for biological detection according to claim 5, wherein The side end of the transmission block (33) is in contact with the surface of the biosafety cabinet body (11), and the threads on the two ends of the transmission shaft (38) are in opposite directions.
7. The biological safety cabinet for biological detection according to claim 5, wherein The surface of the drive shaft (38) is fixed with a limiting block (37), and the surface of the sealing seat (34) is tightly fitted with the ventilation opening of the ventilation pipe (31).