A biosafety cabinet with a safety alarm structure
By designing movable alarm and protective components in the biosafety cabinet, the problems of inconvenient disassembly and insufficient protection in the prior art are solved, realizing rapid disassembly and effective protection and reducing the probability of damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PFIZER (SHANDONG) ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-26
AI Technical Summary
The existing biosafety cabinets have inconvenient safety alarm structures that are difficult to disassemble and lack effective protection, making them susceptible to damage from dust and moisture.
A biosafety cabinet was designed, comprising an alarm component and a protective component with movable connections. It is quick to install and remove via movable casters and magnetic clasps, and is equipped with a protective component to prevent dust and moisture intrusion.
It enables quick disassembly and secure connection of alarm components, reduces the probability of damage caused by dust and moisture, and improves the service life and ease of operation of the equipment.
Smart Images

Figure CN224280220U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biosafety cabinet technology, specifically a biosafety cabinet with a safety alarm structure. Background Technology
[0002] Biosafety cabinets are box-type air-purifying negative pressure safety devices that prevent the aerosol release of certain hazardous or unknown biological particles during experimental operations. They are widely used in scientific research, teaching, clinical testing, and production in fields such as microbiology, biomedicine, genetic engineering, and biological products.
[0003] In existing technologies, some biosafety cabinets are equipped with safety alarm systems to alert operators to errors in operating procedures. These alarms are typically triggered by physical devices such as alarm lights and buzzers. However, current safety alarm structures are usually fixed to the cabinet using fasteners such as bolts. This process is time-consuming and cumbersome, and there is no adequate protective structure when not in use. This allows dust to seep into the alarm structure, affecting its sound quality and increasing the probability of damage.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in related technologies, this utility model proposes a biosafety cabinet with a safety alarm structure to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A biosafety cabinet with a safety alarm structure includes a cabinet body and an alarm component, which are movably connected to each other. A mounting component is located near the edge of the top of the cabinet body. The alarm component includes a connecting base, an alarm light at the top center of the connecting base, and a buzzer alarm on the side of the alarm light. The mounting component includes a rectangular block with mounting slots on both sides. A movable roller is rotatably connected to the inside of the mounting slot via bearings. A connecting block is fixedly connected to the bottom of the connecting base near the edge. A limit slot is formed on the inner side of the connecting block, and the limit slot contacts and engages with the outer wall of the movable roller. A protective component is located above the alarm component.
[0008] Preferably, a limiting baffle is fixedly connected to the end of the rectangular block, and a connecting post is fixedly connected to the upper part of the surface of the limiting baffle. A docking hole is opened on the front surface of the connecting seat. Magnetic suction pieces are fixedly connected to the end of the connecting post and the inside of the docking hole. With the setting of the limiting baffle, after the connecting seat is fully inserted into the rectangular block, it will be inserted into the connecting post through the docking hole. The magnetic suction pieces ensure the stability of the alarm component after installation.
[0009] Preferably, a protrusion is fixedly connected to the center of the front end of the rectangular block. The surface of the protrusion is provided with an anti-slip texture. By providing a protrusion with an anti-slip texture, people can quickly assemble or disassemble the connector and the installation component by grasping it with their hands and pushing or pulling it back and forth.
[0010] Preferably, the protective component includes an outer cover, the length and width of which are larger than the alarm component. The outer cover is made of plastic. Through the protective component, the outer cover shields and protects the alarm component, providing good protection when the equipment is not in use. This prevents external dust from contaminating the alarm component and affecting the normal use of various components, thus reducing the probability of damage to the alarm component.
[0011] Preferably, the bottom four corners of the outer cover are fixedly connected with docking blocks, and the top of the cabinet is provided with docking slots near the edge. By using the docking blocks, the protective components can be quickly connected and assembled with the cabinet, making disassembly and assembly convenient.
[0012] Preferably, a sealing strip is attached to the bottom of the outer cover, and a sealing groove is provided at the top of the cabinet near the edge. The sealing strip will be inserted into the sealing groove when the outer cover is inserted and installed on the cabinet, which increases the tightness of the connection between the protective component and the cabinet, thereby further increasing the protective performance.
[0013] Preferably, a lifting handle is fixedly connected to the top center of the outer protective cover, and a rubber anti-slip pad is attached to the inner side of the lifting handle. By setting a lifting handle with a rubber anti-slip pad, people can quickly remove the protective component by grabbing it and pulling it upwards.
[0014] Preferably, the inner wall of the outer protective cover is provided with Velcro, and a moisture-absorbing paper is attached to the surface of the Velcro. The moisture-absorbing paper can absorb moisture molecules in the sealed environment, keep the area protected by the protective component dry, and further reduce the probability of damage to the alarm component. It is connected by Velcro, and the replacement can be completed by simply tearing it off, which is convenient and easy for people to use.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. By setting up a simple disassembly and assembly structure, the alarm component and the installation component work together to enable quick disassembly and assembly between the alarm component and the cabinet, making it convenient for people to remove it for inspection or cleaning. During the installation of the connecting seat, the limit slot and the rotation of the movable roller make the disassembly and assembly of the alarm component more stable, and it can be fixed after installation to ensure the stability of the alarm component after installation.
[0017] 2. The protective components effectively protect the alarm components when the equipment is not in use, preventing external dust from contaminating them and affecting the normal operation of various parts, thus reducing the probability of damage to the alarm components. Combined with moisture-absorbing paper, it absorbs moisture molecules from the sealed environment, keeping the area protected by the protective components dry and further reducing the probability of damage to the alarm components. The protective components have a simple structure, low production cost, and are easy to install and remove from the cabinet. After installation, they provide strong sealing and excellent protection. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.
[0019] Figure 1 This is a schematic diagram of the overall structure according to an embodiment of the present utility model;
[0020] Figure 2 This is an enlarged structural schematic diagram of the alarm component according to an embodiment of the present utility model;
[0021] Figure 3 This is an enlarged structural schematic diagram of the installation component according to an embodiment of the present utility model;
[0022] Figure 4 This is a schematic diagram of the external structure of the protective component according to an embodiment of the present utility model;
[0023] Figure 5 This is a schematic diagram of the internal structure of the protective component according to an embodiment of the present utility model.
[0024] In the diagram: 1. Cabinet; 2. Alarm assembly; 201. Connecting base; 202. Alarm light; 203. Buzzer alarm; 204. Connecting block; 205. Limiting slot; 206. Protrusion; 207. Docking hole; 3. Protective assembly; 301. Outer cover; 302. Docking block; 303. Sealing strip; 304. Lifting handle; 305. Moisture-absorbing paper; 4. Sealing groove; 5. Docking slot; 6. Mounting assembly; 601. Rectangular block; 602. Mounting groove; 603. Playing roller; 604. Limiting baffle; 605. Connecting column; 606. Magnetic suction plate. Detailed Implementation
[0025] 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.
[0026] According to an embodiment of the present invention, a biosafety cabinet with a safety alarm structure is provided.
[0027] Example 1;
[0028] like Figure 1-5 As shown, the biosafety cabinet with a safety alarm structure according to an embodiment of the present invention includes a cabinet body 1 and an alarm component 2. The cabinet body 1 and the alarm component 2 are movably connected to each other. An installation component 6 is provided on the top of the cabinet body 1 near the edge. The alarm component 2 includes a connecting seat 201. An alarm light 202 is provided at the top center of the connecting seat 201. A buzzer alarm 203 is provided on the side of the alarm light 202. The installation component 6 includes a rectangular block 601. An installation groove 602 is provided on both sides of the rectangular block 601. A movable roller 603 is rotatably connected to the inside of the installation groove 602 through a bearing. A connecting block 204 is fixedly connected to the bottom of the connecting seat 201 near the edge. A limit slot 205 is provided on the inner side of the connecting block 204. The limit slot 205 contacts and cooperates with the outer wall of the movable roller 603. A protective component 3 is provided above the alarm component 2.
[0029] In this embodiment, a limiting baffle 604 is fixedly connected to the end of the rectangular block 601. A connecting post 605 is fixedly connected to the upper part of the surface of the limiting baffle 604. A docking hole 207 is opened on the front surface of the connecting seat 201. A magnetic suction piece 606 is fixedly connected to the end of the connecting post 605 and the inside of the docking hole 207. With the setting of the limiting baffle 604, after the connecting seat 201 is fully inserted into the rectangular block 601, it will be inserted into the connecting post 605 through the docking hole 207. The magnetic suction piece 606 ensures the stability of the alarm component 2 after installation.
[0030] In this embodiment, a protrusion 206 is fixedly connected to the center of the front end of the rectangular block 601. The surface of the protrusion 206 is provided with an anti-slip texture. By providing the protrusion 206 with the anti-slip texture, people can quickly assemble or disassemble the connecting seat 201 with the mounting component 6 by grabbing it with their hands and pushing or pulling it back and forth.
[0031] In this embodiment, the protective component 3 includes an outer cover 301, the length and width of which are larger than the alarm component 2. The outer cover 301 is made of plastic. Through the protective component 3, the outer cover 301 shields and protects the alarm component 2. When the equipment is not in use, it provides good protection for the alarm component 2, preventing external dust from contaminating the alarm component 2 and affecting the normal use of various components, thus reducing the probability of damage to the alarm component 2.
[0032] In this embodiment, docking blocks 302 are fixedly connected to the four bottom corners of the outer cover 301, and docking slots 5 are provided on the top of the cabinet 1 near the edge. By using the docking blocks 302, the protective component 3 can be quickly connected and assembled with the cabinet 1, making disassembly and assembly convenient.
[0033] In this embodiment, a sealing strip 303 is attached to the bottom of the outer cover 301, and a sealing groove 4 is provided at the top of the cabinet 1 near the edge. When the outer cover 301 is inserted into the cabinet 1, the sealing strip 303 will be inserted into the sealing groove 4, which increases the tightness of the connection between the protective component 3 and the cabinet 1, thereby further increasing the protective performance.
[0034] In this embodiment, a lifting handle 304 is fixedly connected to the top center of the outer cover 301. A rubber anti-slip pad is attached to the inner side of the lifting handle 304. By setting the lifting handle 304 with the rubber anti-slip pad, people can quickly remove the protective component 3 by grabbing it and pulling it upward.
[0035] In this embodiment, the inner wall of the outer protective cover 301 is provided with Velcro, and the surface of the Velcro is attached with moisture-absorbing paper 305. The moisture-absorbing paper 305 can absorb water vapor molecules in the sealed environment, keep the area protected by the protective component 3 dry, and further reduce the probability of damage to the alarm component 2. It is attached by Velcro, and the replacement can be completed by simply tearing it off. The operation is convenient and easy for people to use.
[0036] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0037] In practical applications, the connecting seat 201 is aligned with the rectangular block 601 and inserted horizontally. The limiting groove 205 inside the connecting block 204 then contacts the movable roller 603. As the connecting seat 201 is pushed forward, the movable roller 603 rolls accordingly, providing a certain auxiliary force and making the movement of the alarm component 2 relatively smooth. After the connecting seat 201 is fully inserted into the rectangular block 601, it will insert into the connecting post 605 on the limiting baffle 604 through the mating hole 207. The magnetic suction piece 606 ensures the stability of the alarm component 2 after installation. Disassembly is performed by reversing the above steps. When the equipment is not in use... When the outer cover 301 is inserted into the docking slot 5 at the top of the cabinet 1 through the docking block 302 at its bottom, the sealing strip 303 at the bottom of the outer cover 301 will be inserted into the sealing groove 4, which increases the tightness of the connection between the outer cover 301 and the cabinet 1 after installation. When the equipment is not in use, the protective component 3 provides good protection for the alarm component 2, preventing external dust from contaminating the alarm component 2 and affecting the normal use of various components, thus reducing the probability of damage to the alarm component 2. In conjunction with the moisture-absorbing paper 305, it can absorb moisture molecules in the sealed environment, keep the area protected by the protective component 3 dry, and further reduce the probability of damage to the alarm component 2.
[0038] In summary, by utilizing the above-mentioned technical solution of this utility model, and through the establishment of a simple disassembly and assembly structure, the alarm component 2 and the installation component 6 cooperate with each other, enabling the alarm component 2 to be quickly disassembled and assembled from the cabinet 1, facilitating its removal for inspection or cleaning. During the installation of the connecting seat 201, the rotational cooperation between the limiting slot 205 and the movable roller 603 makes the disassembly and assembly movement of the alarm component 2 more stable, and it can be fixed after installation, ensuring the stability of the alarm component 2 after installation. The protective component 3 provides excellent protection for the alarm component 2 when the equipment is not in use, preventing external dust from contaminating the alarm component 2 and affecting the normal use of various components, thus reducing the probability of damage to the alarm component 2. In conjunction with the moisture-absorbing paper 305, it can absorb moisture molecules in the sealed environment, keeping the area protected by the protective component 3 dry, further reducing the probability of damage to the alarm component 2. The protective component 3 has a simple structure, low production cost, convenient disassembly and assembly from the cabinet 1, strong sealing after installation, and excellent protective effect.
[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A biological safety cabinet with a safety alarm structure, comprising a cabinet body (1) and an alarm assembly (2), characterized in that, The cabinet (1) and the alarm component (2) are movably connected to each other. The top of the cabinet (1) is provided with an installation component (6) near the edge. The alarm component (2) includes a connecting seat (201). An alarm light (202) is provided at the top center of the connecting seat (201). A buzzer alarm (203) is provided on the side of the alarm light (202). The installation component (6) includes a rectangular block (601). Both sides of the rectangular block (601) are provided with installation slots (602). The interior of the installation slots (602) is rotatably connected to a movable roller (603) through a bearing. A connecting block (204) is fixedly connected to the bottom of the connecting seat (201) near the edge. A limit slot (205) is provided on the inner side of the connecting block (204). The limit slot (205) is in contact with the outer wall of the movable roller (603). A protective component (3) is provided above the alarm component (2).
2. The biological safety cabinet with a safety alarm structure according to claim 1, wherein, A limiting baffle (604) is fixedly connected to the end of the rectangular block (601). A connecting post (605) is fixedly connected to the upper part of the surface of the limiting baffle (604). A docking hole (207) is opened on the front surface of the connecting seat (201). A magnetic absorbing piece (606) is fixedly connected to the end of the connecting post (605) and the inside of the docking hole (207).
3. The biological safety cabinet with a safety alarm structure according to claim 1, wherein, A protrusion (206) is fixedly connected to the center of the front end of the rectangular block (601), and the surface of the protrusion (206) is provided with an anti-slip texture.
4. A biosafety cabinet with a safety alarm structure according to claim 1, characterized in that, The protective component (3) includes an outer cover (301), the length and width of which are greater than those of the alarm component (2), and the outer cover (301) is made of plastic.
5. A biosafety cabinet with a safety alarm structure according to claim 4, characterized in that, The bottom four corners of the outer cover (301) are fixedly connected with docking blocks (302), and the top of the cabinet (1) is provided with docking slots (5) near the edge.
6. A biosafety cabinet with a safety alarm structure according to claim 4, characterized in that, A sealing strip (303) is attached to the bottom of the outer cover (301), and a sealing groove (4) is provided on the top of the cabinet (1) near the edge.
7. A biosafety cabinet with a safety alarm structure according to claim 4, characterized in that, A lifting handle (304) is fixedly connected to the top center of the outer cover (301), and a rubber anti-slip pad is attached to the inner side of the lifting handle (304).
8. A biosafety cabinet with a safety alarm structure according to claim 4, characterized in that, The inner wall of the outer cover (301) is provided with Velcro, and the surface of the Velcro is attached with moisture-absorbing paper (305).