Biological safety cabinet with adjustable space
Through the design of the limiting and engaging components, the placement panel of the biosafety cabinet can slide within the range of the slide rails, solving the waste problem caused by the fixed space of traditional biosafety cabinets, and realizing flexible space adjustment and efficient experimental operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINSHUO EXPERIMENTAL EQUIP (SHANGHAI) CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
Existing biosafety cabinets have fixed spaces that cannot be adjusted according to experimental needs, resulting in low space utilization and poor flexibility.
A limiting engagement component was designed, which allows the placement plate to slide within the range of the slide rail through the cooperation of the slide rail and the interlocking block. Users can adjust the spacing between the placement plates by pressing the button, thus achieving flexible adjustment of the space.
It improved space utilization, simplified the space adjustment process, reduced the complexity of manual operations, and improved experimental efficiency.
Smart Images

Figure CN224142271U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of biosafety cabinet technology, specifically relating to a space-adjustable biosafety cabinet. Background Technology
[0002] A biosafety cabinet is a laboratory device specifically designed to provide protection against potential hazards to personnel, the environment, and samples from biohazardous materials such as pathogens, cells, or biological products. It ensures a safe isolation of the internal space from the external environment during operations through airflow and filtration systems. Biosafety cabinets typically come in different safety levels to accommodate different types of biological materials and experimental needs. Their main functions include preventing aerosol transmission, filtering harmful gases, and providing a clean working environment.
[0003] In modern laboratories, biosafety cabinets are essential equipment for ensuring the safety of operators and the environment. However, many existing biosafety cabinets have some significant drawbacks, especially in terms of space utilization and flexibility. Traditional biosafety cabinets usually have fixed internal space and cannot be adjusted according to experimental needs. This limitation not only affects the flexibility of experiments but may also lead to wasted space and fail to meet the needs of experiments of different scales. Therefore, a space-adjustable biosafety cabinet is proposed to solve the above problems. Utility Model Content
[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a space-adjustable biosafety cabinet, which has the advantages of improved space utilization, flexibility and high adaptability.
[0005] To achieve the above objectives, this utility model provides a space-adjustable biosafety cabinet, including a biosafety cabinet body. The biosafety cabinet body has a cavity and slide rails are mounted on both sides of the inner wall of the cavity. Several fitting blocks are slidably fitted on both slide rails. A placement plate is mounted between the two fitting blocks on the same axis. Several insertion holes are opened in a linear array on one side of both slide rails.
[0006] A set of limiting and engaging components is assembled on one side of each of the aforementioned interlocking blocks;
[0007] The limiting engagement assembly includes a mounting base with a rectangular cavity through which a slide rod passes. Two mounting plates are rotatably mounted on the outside of the slide rod. A pressing plate is mounted on one side of both mounting plates. A compression spring is hooked into the rectangular cavity of the mounting base. One end of the compression spring is connected to the pressing plate. A positioning post is fitted into one end of the pressing plate. A limiting post is mounted on one end of the positioning post, and one end of the limiting post extends through the mounting base and the engaging block and is inserted into the insertion hole.
[0008] As a further improvement of this utility model, a connecting rod is provided through one side of the positioning post, and the connecting rod extends through the pressing plate, the positioning post and the limiting post.
[0009] As a further improvement of this utility model, a limiting frame is provided on one side of the biosafety cabinet body, and the limiting frame has a slot in which a partition is inserted.
[0010] As a further improvement of this utility model, the button is provided with anti-slip texture on one side.
[0011] As a further improvement of this utility model, the connection between the limiting engagement component and the fitting block is designed to be detachable.
[0012] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:
[0013] This utility model of a space-adjustable biosafety cabinet utilizes the interlocking mechanism of its components. By pressing the button, the limiting column moves, allowing the placement plates to slide within the travel range of the slide rail. This adjusts the spacing and space between the two placement plates, enabling users to freely adjust the internal space layout according to experimental needs. This avoids the space waste caused by the fixed structure of traditional biosafety cabinets. Whether for small-scale operations or large-scale experiments, it provides appropriate space configuration, greatly improving space utilization efficiency. The design of the limiting mechanism makes adjusting the placement plates simpler; users can adjust the position of the interlocking blocks by simply pressing, without additional tools or complex operations. This efficient and convenient adjustment method not only shortens adjustment time but also reduces the complexity of manual operation, improving the overall efficiency of the experimental process. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the installation structure of the slide rail, limiting and engaging assembly, and placement plate of this utility model;
[0016] Figure 3 This is a schematic diagram of the disassembly structure of the limiting engagement component of this utility model.
[0017] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Biosafety cabinet body; 11. Limiting frame; 12. Partition; 2. Slide rail; 21. Fitting block; 22. Placement plate; 23. Insertion hole; 3. Limiting engagement assembly; 30. Mounting base; 31. Slide rod; 32. Mounting plate; 33. Button; 34. Compression spring; 35. Positioning post; 36. Limiting post; 37. Connecting rod. Detailed Implementation
[0018] 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.
[0019] Example
[0020] Depend on Figure 1-3 The present invention provides a space-adjustable biosafety cabinet, comprising a biosafety cabinet body 1, the biosafety cabinet body 1 having a cavity and slide rails 2 mounted on both sides of the inner wall of the cavity, a plurality of fitting blocks 21 being fitted and slidably disposed on both slide rails 2, a placement plate 22 being mounted between the two fitting blocks 21 on the same axis, and a plurality of insertion holes 23 being linearly arrayed on one side of both slide rails 2.
[0021] A set of limiting engagement components 3 is assembled on one side of each of the several interlocking blocks 21;
[0022] The limiting engagement assembly 3 includes a mounting base 30, which has a rectangular cavity and a slide rod 31 is provided through the rectangular cavity. Two mounting plates 32 are rotatably provided on the outside of the slide rod 31. A pressing plate 33 is mounted on one side of the two mounting plates 32. A compression spring 34 is hooked in the rectangular cavity of the mounting base 30. One end of the compression spring 34 is connected to the pressing plate 33. A positioning post 35 is fitted and connected to one end of the pressing plate 33. A limiting post 36 is mounted on one end of the positioning post 35 and one end of the limiting post 36 extends through the mounting base 30 and the engaging block 21 and is inserted into the insertion hole 23.
[0023] In this embodiment, through the mutual cooperation between the components within the limiting engagement assembly 3, pressing the push plate 33 moves the limiting post 36, allowing the placement plate 22 to slide within the travel range of the slide rail 2. This adjusts the distance and space between the two placement plates 22, allowing users to freely adjust the internal space layout according to experimental needs. This avoids the space waste caused by the fixed structure of the traditional biosafety cabinet body 1. Whether for small-scale operations or large-scale experiments, it provides appropriate space configuration, greatly improving space utilization efficiency. The design of the limiting engagement assembly 3 makes adjusting the placement plate 22 simpler. Users can adjust the position of the interlocking block 21 by simply pressing, without additional tools or complex operations. This efficient and convenient adjustment method not only shortens the adjustment time but also reduces the complexity of manual operation, improving the overall efficiency of the experimental process.
[0024] Specifically, refer to Figure 3A connecting rod 37 is provided through one side of the positioning post 35, and the connecting rod 37 extends through the pressing plate 33, the positioning post 35 and the limiting post 36.
[0025] In this embodiment, the connecting rod 37 is used to connect the pressing plate 33 with the positioning post 35 and the limiting post 36, thereby improving stability.
[0026] Specifically, refer to Figure 1 The biosafety cabinet body 1 has a limiting frame 11 on one side, and the limiting frame 11 has a slot and a partition 12 is inserted into the slot.
[0027] In this embodiment, the biosafety cabinet body 1 can be sealed off on one side by pulling down the partition 12.
[0028] Specifically, refer to Figure 3 Anti-slip texture is provided on one side of the pressing board 33.
[0029] In this embodiment, by providing anti-slip texture on one side of the button plate 33, the friction can be increased, making it more convenient for the user to press the button plate 33.
[0030] Specifically, refer to Figure 1-2 The connection between the limiting engagement component 3 and the interlocking block 21 is detachable.
[0031] In this embodiment, the connection between the limiting engagement component 3 and the fitting block 21 is designed to be detachable, making subsequent maintenance and disassembly of the limiting engagement component 3 convenient.
[0032] This utility model relates to a space-adjustable biosafety cabinet:
[0033] In actual use, when it is necessary to adjust the spatial distance between the two placement plates 22, by pressing the button plate 33 in the two sets of limiting engagement components 3, the sliding rod 31 cooperates with the two mounting plates 32 to limit the button plate 33, so that the button plate 33 tilts to one side when pressed, and squeezes the compression spring 34. At the same time, it drives the positioning post 35 and the limiting post 36 on one side of the positioning post 35 to be engaged and connected, so that the limiting post 36 disengages from the insertion hole 23. Then, the position of the placement plate 22 can be adjusted by sliding within the stroke range of the slide rail 2. After reaching the appropriate position, by releasing the pressed button plate 33, under the action of the elasticity of the compression spring 34 and the external tension, the button plate 33 is pushed to the opposite side, and the limiting post 36 is inserted into the insertion hole 23, thereby limiting the placement plate 22 and completing the spatial distance adjustment.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A space-adjustable biosafety cabinet, characterized in that: The biosafety cabinet includes a body (1), which has a cavity and slide rails (2) are mounted on both sides of the inner wall of the cavity. Several fitting blocks (21) are fitted and slidably arranged on the two slide rails (2). A placement plate (22) is mounted between the two fitting blocks (21) on the same axis. Several insertion holes (23) are opened in a linear array on one side of the two slide rails (2). Each of the aforementioned interlocking blocks (21) is equipped with a set of limiting and engaging components (3) on one side; The limiting engagement assembly (3) includes a mounting base (30), which has a rectangular cavity and a slide rod (31) is provided through the rectangular cavity. Two mounting plates (32) are rotatably provided on the outside of the slide rod (31). A pressing plate (33) is mounted on one side of the two mounting plates (32). A compression spring (34) is hooked in the rectangular cavity of the mounting base (30). One end of the compression spring (34) is connected to the pressing plate (33). A positioning post (35) is fitted and connected to one end of the pressing plate (33). A limiting post (36) is mounted on one end of the positioning post (35), and one end of the limiting post (36) extends through the mounting base (30) and the engaging block (21) and is inserted into the insertion hole (23).
2. The spatially adjustable biosafety cabinet of claim 1, wherein, A connecting rod (37) is provided through one side of the positioning post (35), and the connecting rod (37) extends through the pressing plate (33), the positioning post (35) and the limiting post (36).
3. The spatially adjustable biosafety cabinet of claim 1, wherein, The biosafety cabinet body (1) is provided with a limiting frame (11) on one side, and the limiting frame (11) has a slot and a partition (12) is inserted into the slot.
4. The spatially adjustable biosafety cabinet of claim 1, wherein, The button (33) has anti-slip texture on one side.
5. The spatially adjustable biosafety cabinet of claim 1, wherein, The connection between the limiting engagement component (3) and the fitting block (21) is detachable.