Modular biosafety cabinet

The design of the quick-release mechanism and protective mechanism solves the problems of difficult filter removal and messy wiring in biosafety cabinets, enabling rapid filter removal and stable fixation of reagent bottles, thus improving maintenance efficiency and safety.

CN224486066UActive Publication Date: 2026-07-14WENZHOU MEDICAL UNIV CIXI INST OF BIOMEDICINE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU MEDICAL UNIV CIXI INST OF BIOMEDICINE
Filing Date
2025-05-22
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The filters in existing biosafety cabinets are difficult to disassemble, resulting in long maintenance times and reduced maintenance efficiency. At the same time, messy wiring affects the safety of use.

Method used

The system employs a quick-release mechanism and a protective mechanism. Through the design of springs and clamps, it enables quick disassembly of the filter and stable fixation of the reagent bottle, simplifying the maintenance process and improving safety.

Benefits of technology

It enables quick disassembly of filters and secure fixation of reagent bottles, shortening maintenance time, improving maintenance efficiency, and reducing the occurrence of safety accidents.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224486066U_ABST
    Figure CN224486066U_ABST
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Abstract

The utility model discloses a modular biological safety cabinet relates to biological safety and protection technical field, the utility model discloses a bottom plate, the top outer wall fixedly connected with biological safety cabinet of bottom plate is provided with quick release mechanism in the inner wall of biological safety cabinet, quick release mechanism includes exhaust pipe, the outer wall fixedly connected with the top inner wall of biological safety cabinet of exhaust pipe, the inner wall fixedly connected with a plurality of locating blocks of exhaust pipe, the utility model discloses a spring, and then spring will drive the original position of sliding axle recovery, and the original position of sliding axle recovery will drive the clamping block from the slot and separate, can remove the location of filter, can filter and dismantle and change or repair, reaches the effect of quick dismantling to filter, and when the maintenance personnel are to the biological safety cabinet and carry out regular maintenance, can quickly take out the filter and check, clean or change, greatly shorten the maintenance time, improve the efficiency of maintenance work.
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Description

Technical Field

[0001] This utility model belongs to the field of biosafety and protection technology, and in particular relates to a modular biosafety cabinet. Background Technology

[0002] According to the published patent for a biosafety cabinet with announcement number CN217164443U, it includes a biosafety cabinet body, an operating surface inside the biosafety cabinet body, and wiring connected to one side of the biosafety cabinet body. The operating surface has U-shaped fixing blocks fixed to its surface, which solves the problem of the lack of corresponding area separation on the operating surface, making it difficult to distinguish between the safe area, operating area, and contaminated area, resulting in cluttered items that are easily knocked over and poor safety. Furthermore, it cannot reasonably arrange the wiring of the biosafety cabinet, resulting in messy wiring and poor practicality. However, it still has the following shortcomings:

[0003] When the above-mentioned equipment is completed, it achieves the effect of controlling the operating area of ​​the safe area, operating area and contaminated area on the operating table. However, the filter in the biosafety cabinet needs to be replaced or maintained after long-term use. However, the filter in the existing equipment is generally fixed with bolts, which makes it difficult to disassemble the filter, thus greatly increasing the maintenance time and reducing the efficiency of maintenance work. Therefore, we propose a modular biosafety cabinet. Utility Model Content

[0004] The purpose of this utility model is to provide a modular biosafety cabinet. Through a quick-release mechanism and a protective mechanism, it solves the problem of achieving the effect of adjusting the operating area of ​​the safe area, operating area and contaminated area on the operating table when the above-mentioned equipment is completed. However, the filter in the biosafety cabinet needs to be replaced or maintained after long-term use. However, the filter in the existing equipment is generally fixed with bolts, which makes it difficult to disassemble the filter, thus greatly increasing the maintenance time and reducing the efficiency of maintenance work.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a modular biosafety cabinet, including a base plate, the top outer wall of the base plate is fixedly connected to the biosafety cabinet, and the inner wall of the biosafety cabinet is provided with a quick-release mechanism.

[0007] The quick-release mechanism includes an exhaust pipe, the outer wall of which is fixedly connected to the inner top wall of the biosafety cabinet. Several positioning blocks are fixedly connected to the inner wall of the exhaust pipe. Each positioning block has a slot on its inner wall and a filter is engaged with it. Several positioning plates are fixedly connected to the inner wall of the filter. Insert rods are inserted into the inner walls of each positioning plate. Fixing plates are fixedly connected to the inner walls of each positioning plate. Sliding shafts are slidably connected to the inner walls of each fixing plate.

[0008] Furthermore, springs are fitted on the outer walls of several of the sliding shafts, sliding grooves are formed on the inner walls of several of the positioning plates, and locking blocks are fixedly connected to the outer walls of several of the sliding shafts.

[0009] Furthermore, the outer walls of several of the card blocks are slidably connected to the inner wall of the slide groove, and the outer walls of several of the slide shafts away from the card blocks are fixedly connected to the compression blocks. The inner wall of the biosafety cabinet is provided with a protective mechanism.

[0010] Furthermore, the protective mechanism includes several protective boxes, the outer walls of which are fixedly connected to the inner wall of the biosafety cabinet.

[0011] Furthermore, a pad is fixedly connected to the inner wall of each of the protective boxes, and a connecting box is fixedly connected to the inner wall of each of the protective boxes.

[0012] Furthermore, each of the connecting boxes has a second sliding groove on its inner wall, and a connecting shaft is fixedly connected to the inner wall of each of the second sliding grooves.

[0013] Furthermore, spring 2 is sleeved on the outer wall of each of the connecting shafts, and clamping plates are slidably connected to the outer wall of each of the connecting shafts.

[0014] Furthermore, a fixing plate is fixedly connected to the outer wall of each of the connecting shafts, and a silicone pad is fixedly connected to the outer wall of each of the fixing plates and the fixing plate.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model incorporates a spring, which will drive the sliding shaft back to its original position. When the sliding shaft returns to its original position, it will disengage the locking block from the slot, thus releasing the filter's limiting function. The filter can then be removed for replacement or maintenance, achieving rapid filter disassembly. This allows maintenance personnel to quickly remove the filter for inspection, cleaning, or replacement during routine maintenance of the biosafety cabinet, significantly shortening maintenance time and improving maintenance efficiency.

[0017] 2. This utility model incorporates a clamping plate. When the clamping plate is slowly released, it stops compressing the second spring. The spring's rebound force pushes the clamping plate back to its original position. At this point, the silicone pad on the clamping plate first contacts the reagent bottle, preventing damage. The clamping plate then works in conjunction with the fixing clamp to lower and secure the reagent bottle, achieving a secure clamping effect, preventing the bottle from tipping over, effectively reducing the occurrence of safety accidents, and protecting the safety of laboratory personnel and the experimental environment within the biosafety cabinet.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the exhaust pipe structure of this utility model;

[0023] Figure 4 This is a cross-sectional view of the filter structure of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a schematic diagram of the protective box structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base plate; 101. Biosafety cabinet; 2. Quick-release mechanism; 201. Exhaust pipe; 202. Positioning block; 203. Slot; 204. Filter; 205. Positioning plate; 206. Insert rod; 207. Fixing plate; 208. Sliding shaft; 209. Spring; 210. Slide groove; 211. Pressing block; 212. Locking block; 3. Protective mechanism; 301. Protective box; 302. Pad plate; 303. Connecting box; 304. Slide groove two; 305. Connecting shaft; 306. Spring two; 307. Clamping plate; 308. Fixing clamping plate; 309. Silicone pad. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6As shown, this utility model is a modular biosafety cabinet, including a base plate 1. A biosafety cabinet 101 is fixedly connected to the top outer wall of the base plate 1. The biosafety cabinet 101 provides a relatively independent and clean operating space, preventing microorganisms and impurities from the outside air from entering by maintaining stable airflow and cleanliness. The inner wall of the biosafety cabinet 101 is provided with a quick-release mechanism 2, which includes an exhaust pipe 201. The outer wall of the exhaust pipe 201 is fixedly connected to the top inner wall of the biosafety cabinet 101. The exhaust pipe 201 is used to exhaust air into the inner wall of the biosafety cabinet 101. The exhaust pipe 201 vents air from inside the biosafety cabinet 101. Several positioning blocks 202 are fixedly connected to the inner wall of the exhaust pipe 201. Each positioning block 202 has a slot 203 on its inner wall. The slot 203 is used to fix and limit the movement of subsequent parts. A filter 204, an H13 grade HEPA filter, is also fitted into the inner wall of each positioning block 202. This filter prevents potentially harmful bioaerosols from leaking into the surrounding environment, thus avoiding contact with harmful microorganisms for operators. To protect the safety of laboratory personnel and prevent biological contamination of the laboratory and surrounding environment, several positioning plates 205 are fixedly connected to the inner wall of the filter 204. Insert rods 206 are inserted into the inner walls of each positioning plate 205. By inserting the rods 206 into the positioning plates 205, the internal parts of the positioning plates 205 move outward. Fixing plates 207 are fixedly connected to the inner walls of each positioning plate 205, and sliding shafts 208 are slidably connected to the inner walls of each fixing plate 207. The fixing plates 207 are used to support the sliding shafts 208. To provide support and limit the movement and prevent it from falling during use, springs 209 are fitted on the outer walls of several sliding shafts 208, and sliding grooves 210 are opened on the inner walls of several positioning plates 205. A locking block 212 is fixedly connected to the outer walls of several sliding shafts 208, and the outer walls of several locking blocks 212 are slidably connected to the inner walls of the sliding grooves 210. The locking blocks 212 move outward through the sliding grooves 210. A pressing block 211 is fixedly connected to the outer wall of the end of several sliding shafts 208 away from the locking block 212. A protective mechanism 3 is provided on the inner wall of the biosafety cabinet 101.

[0030] The protective mechanism 3 includes several protective boxes 301. The outer walls of the protective boxes 301 are fixedly connected to the inner wall of the biosafety cabinet 101. The protective boxes 301 are used to protect the reagent bottles. The inner walls of the protective boxes 301 are fixedly connected to the pads 302. The pads 302 are used to protect the reagent bottles and prevent them from tipping over due to vibration. The inner walls of the protective boxes 301 are fixedly connected to the connecting boxes 303. The inner walls of the connecting boxes 303 are provided with sliding grooves 304. The function of the sliding grooves 304 is to facilitate the sliding of subsequent parts. The inner walls of the sliding grooves 304 are fixedly connected to the connecting shafts 305.

[0031] A spring 306 is fitted on the outer wall of several connecting shafts 305. The spring 306 serves as a limit and also drives the parts to quickly reset. A clamping plate 307 is slidably connected to the outer wall of several connecting shafts 305. A fixing clamping plate 308 is fixedly connected to the outer wall of several connecting shafts 305. Both the clamping plate 307 and the fixing clamping plate 308 are used to fix and limit the reagent bottle. A silicone pad 309 is fixedly connected to the outer wall of several clamping plates 307 and the fixing clamping plate 308. The silicone pad 309 prevents the clamping plates 307 and the fixing clamping plate 308 from damaging the reagent bottle.

[0032] One specific application of this embodiment is:

[0033] When the operator needs to use the equipment, first push the clamp 307 to one side. The clamp 307, under pressure, will slide to one side via the connecting shaft 305. As the clamp 307 slides, it will compress the second spring 306. When the spring 306 is compressed, it will contract. Then, place the reagent bottle stably on the pad 302. Next, slowly release the pulled clamp 307. When the clamp 307 is no longer under pressure, it will no longer compress the second spring 306. The rebound force of the second spring 306 will push the clamp 307 back to its original position. At this point, the silicone pad 309 on the clamp 307 will first contact the reagent bottle, preventing damage. Then, the clamp 307, in conjunction with the fixing clamp 308, will... When the filter 204 needs to be replaced or maintained after prolonged use, first pull the insertion rod 206 upwards. When the insertion rod 206 is completely disengaged from the positioning plate 205, it will no longer compress and limit the compression block 211. At this time, the originally contracted spring will rebound due to the lack of compression, and the spring 209 will reset. Then, the spring 209 will drive the sliding shaft 208 back to its original position. When the sliding shaft 208 returns to its original position, it will drive the locking block 212 out of the locking groove 203. At this time, the limitation on the filter 204 can be released, and the filter 204 can then be disassembled for replacement or maintenance. When installing the filter 204, simply reverse the above operation once.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] 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 modular biosafety cabinet, comprising a base plate (1), characterized in that: The top outer wall of the base plate (1) is fixedly connected to a biosafety cabinet (101), and the inner wall of the biosafety cabinet (101) is provided with a quick-release mechanism (2); The quick-release mechanism (2) includes an exhaust pipe (201), the outer wall of which is fixedly connected to the inner top wall of the biosafety cabinet (101). The inner wall of the exhaust pipe (201) is fixedly connected to several positioning blocks (202). The inner walls of the positioning blocks (202) are provided with slots (203). The inner walls of the positioning blocks (202) are fitted with filters (204). The inner walls of the filters (204) are fixedly connected to several positioning plates (205). The inner walls of the positioning plates (205) are fitted with insert rods (206). The inner walls of the positioning plates (205) are fixedly connected to fixing plates (207). The inner walls of the fixing plates (207) are slidably connected to sliding shafts (208).

2. The modular biosafety cabinet according to claim 1, characterized in that, Springs (209) are fitted on the outer walls of several sliding shafts (208), and sliding grooves (210) are opened on the inner walls of several positioning plates (205). A locking block (212) is fixedly connected to the outer walls of several sliding shafts (208).

3. A modular biosafety cabinet according to claim 2, characterized in that, The outer walls of several of the card blocks (212) are slidably connected to the inner wall of the slide groove (210), and the outer walls of several of the slide shafts (208) away from the card blocks (212) are fixedly connected to the compression block (211), and the inner wall of the biosafety cabinet (101) is provided with a protective mechanism (3).

4. A modular biosafety cabinet according to claim 3, characterized in that, The protective mechanism (3) includes several protective boxes (301), and the outer walls of the several protective boxes (301) are fixedly connected to the inner wall of the biosafety cabinet (101).

5. A modular biosafety cabinet according to claim 4, characterized in that, A pad (302) is fixedly connected to the inner wall of each of the protective boxes (301), and a connecting box (303) is fixedly connected to the inner wall of each of the protective boxes (301).

6. A modular biosafety cabinet according to claim 5, characterized in that, Each of the connecting boxes (303) has a second sliding groove (304) on its inner wall, and a connecting shaft (305) is fixedly connected to the inner wall of each of the second sliding grooves (304).

7. A modular biosafety cabinet according to claim 6, characterized in that, Spring 2 (306) is sleeved on the outer wall of several connecting shafts (305), and clamping plate (307) is slidably connected to the outer wall of several connecting shafts (305).

8. A modular biosafety cabinet according to claim 7, characterized in that, A fixing plate (308) is fixedly connected to the outer wall of each of the connecting shafts (305), and a silicone pad (309) is fixedly connected to the outer wall of each of the clamps (307) and the fixing plate (308).