Protective device for biological detection

Abstract

A protective device for biological detection, belonging to the field of biosafety cabinet technology, includes a biosafety cabinet body. A transverse reciprocating drive device is fixedly installed on the lower surface of the biosafety cabinet body. An L-shaped support is fixedly installed on the front surface of the transverse reciprocating drive device. A carrier block is fixedly installed on the upper surface of the L-shaped support. The carrier block is transversely h-shaped, and a movable box is rotatably installed inside the carrier block. An adjustable positioning component is provided between the movable box and the carrier block. A roller-shaped wiping mechanism is installed on the rear side of the movable box. At the same time, the long roller in the roller-shaped wiping mechanism cooperates with a detachable disposable wiping cloth cover. This utility model can achieve uniform coating and wiping of disinfectant, effectively reducing labor intensity and improving disinfection efficiency. In addition, the cooperation between the long roller in the roller-shaped wiping mechanism and the detachable disposable wiping cloth cover, as well as the design of adjusting the contact surface of the wiping cloth cover with a fine-tuning motor, not only ensures the consistency of wiping force and effect and avoids disinfection dead corners, but also makes full use of the wiping cloth cover and saves resources.

Description

Technical Field

[0001] This utility model belongs to the field of biosafety cabinet technology, specifically relating to a protective device for biological detection. Background Technology

[0002] Biosafety cabinets are the most basic safety protection equipment in laboratory biosafety barriers, protecting operators and the environment and preventing the spread of pathogenic microorganisms that could cause personal injury and environmental pollution.

[0003] To ensure experimental safety during the use of biosafety cabinets, the work surface inside the cabinet must be strictly disinfected before and after each test.

[0004] The current common practice is to first manually spray alcohol onto the work surface inside the cabinet for disinfection, and then wipe it down after the alcohol has fully taken effect. However, this traditional manual method has many drawbacks. It is not only labor-intensive and inefficient, but it is also difficult to maintain consistent pressure and uniformity when wiping, which may result in incomplete disinfection of some areas and affect experimental safety. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a protective device for biological detection, which solves the problem that the existing method of manually wiping and disinfecting the inner surface of the biosafety cabinet is not only labor-intensive and inefficient, but also difficult to maintain consistent pressure and uniformity in manual wiping, which may lead to incomplete disinfection in some areas and affect experimental safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A protective device for biological detection includes a biosafety cabinet body. A transverse reciprocating drive device is fixedly installed on the lower surface of the biosafety cabinet body. An L-shaped support is fixedly installed on the front surface of the transverse reciprocating drive device. A carrier block is fixedly installed on the upper surface of the L-shaped support. The carrier block is transversely h-shaped, and a movable box is rotatably installed inside the carrier block. An adjustable positioning element is provided between the movable box and the carrier block. A roller-shaped wiping mechanism is installed on the rear side of the movable box. The roller-shaped wiping mechanism is located inside the biosafety cabinet body and is used to wipe the inner table surface of the biosafety cabinet body.

[0008] In the above technical solution, the transverse reciprocating drive device includes a carrier frame fixedly installed below the main body of the safety cabinet. A forward and reverse servo motor is fixedly installed on the left side of the carrier frame. A lead screw is fixedly connected to the output end of the forward and reverse servo motor. The lead screw is rotatably installed inside the carrier frame, and a lead screw slide is sleeved on the outer surface of the lead screw. The lead screw slide is fixedly connected to an L-shaped support. A guide rod is fixedly installed inside the carrier frame, and the lead screw slide and the guide rod are slidably connected.

[0009] In the above technical solution, positioning holes are provided on the left and front surfaces of the movable box. The positioning component is a positioning bolt. The positioning bolt is threaded through and screwed onto the left surface of the carrier block. The right end of the positioning bolt is provided with a snap-fit ​​part. The snap-fit ​​part is snapped into the corresponding positioning hole to fix the movable box.

[0010] In the above technical solution, the roller-shaped wiping mechanism includes a long roller and a wiping cloth sleeve. The long roller is located on the rear side of the movable box, and a tightening groove is axially formed on the outer surface of the long roller. The wiping cloth sleeve is fitted on the outer surface of the long roller, and an elastic rubber ring is sewn at the front end of the wiping cloth sleeve. The elastic rubber ring is fitted inside the tightening groove.

[0011] In the above technical solution, the active box is provided with an installation cavity, and a fine-tuning motor is fixedly installed in the installation cavity. The output end of the fine-tuning motor is fixedly connected to the front end of the long roller.

[0012] In the above technical solution, a reinforcing frame is fixedly installed on the rear surface of the active box, and the front end of the long roller is rotatably mounted inside the reinforcing frame through a bearing.

[0013] In the above technical solution, multiple heat dissipation holes are provided through the mounting cavity.

[0014] The protective device for biological detection of this utility model has the following advantages compared with the prior art:

[0015] This invention utilizes a transverse reciprocating drive device to propel a roller-shaped wiping mechanism in a transverse reciprocating motion within the biosafety cabinet body, achieving uniform application and wiping of disinfectant. This effectively reduces labor intensity and improves disinfection efficiency. Simultaneously, the combination of the long roller in the roller-shaped wiping mechanism and the detachable disposable wiping cloth cover, along with the design of a fine-tuning motor to adjust the contact surface of the wiping cloth cover, not only ensures consistent wiping force and effect, avoiding disinfection dead zones, but also fully utilizes the wiping cloth cover, saving resources. Furthermore, the adjustable positioning component design between the movable box and the carrier block allows the roller-shaped wiping mechanism to be retracted when idle, without affecting the normal closing of the biosafety cabinet door, while providing stable fixation during use. This comprehensive approach ensures experimental safety and overcomes multiple drawbacks of traditional manual operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the left-side structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the transverse reciprocating drive device of this utility model.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the carrier block of this utility model.

[0020] Figure 5 This is a schematic diagram of the positioning bolt structure of this utility model.

[0021] Figures 1-5 The components include: 1. Safety cabinet body; 2. Lateral reciprocating drive device; 21. Carrier frame; 22. Forward and reverse servo motor; 23. Lead screw; 231. Lead screw slide; 24. Guide rod; 3. L-shaped support; 4. Carrier block; 41. Positioning bolt; 5. Movable box; 51. Positioning hole; 52. Mounting cavity; 6. Roller wiping mechanism; 61. Long roller; 611. Tightening groove; 62. Wiping cloth cover; 7. Fine-tuning motor; 8. Reinforcing frame. Detailed Implementation

[0022] 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.

[0023] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-5 This utility model provides a technical solution:

[0024] A protective device for biological detection includes a safety cabinet body 1. A transverse reciprocating drive device 2 is fixedly installed on the lower surface of the safety cabinet body 1. An L-shaped support 3 is fixedly installed on the front surface of the transverse reciprocating drive device 2. A carrier block 4 is fixedly installed on the upper surface of the L-shaped support 3. The carrier block 4 is transversely h-shaped, and a movable box 5 is rotatably installed inside the carrier block 4. An adjustable positioning component is provided between the movable box 5 and the carrier block 4. Positioning holes 51 are provided on the left and front surfaces of the movable box 5. The positioning component is a positioning bolt 41, which is threaded through and screwed onto the left surface of the carrier block 4. A snap-fit ​​part is provided on the right end of the positioning bolt 41. When the snap-fit ​​part is snapped into the corresponding positioning hole 51, it can fix the movable box 5. A roller-shaped wiping mechanism 6 is installed on the rear side of the movable box 5. The roller-shaped wiping mechanism 6 is located inside the safety cabinet body 1 and is used to wipe the inner table surface of the safety cabinet body 1.

[0025] When the roller wiping mechanism 6 is idle, the positioning bolt 41 can be unscrewed, the roller wiping mechanism 6 can be flipped out and adjusted to be parallel to the main body 1 of the safety cabinet. At this time, the positioning bolt 41 can be assembled so that the locking part at its rear end can be locked in the corresponding positioning hole 51 to keep the roller wiping mechanism 6 fixed. In this state, the cabinet door of the main body 1 of the safety cabinet can be closed and sealed normally.

[0026] When using the roller wiping mechanism 6, flip the roller wiping mechanism 6 over and transfer it into the main body 1 of the safety cabinet. After the transfer, the wiping surface of the roller wiping mechanism 6 should be in contact with the inner table surface of the main body 1 of the safety cabinet. Then, adjust it to be perpendicular to the rear side wall of the inner cavity of the main body 1 of the safety cabinet. After that, reassemble the positioning bolt 41 between the carrier block 4 and the movable box 5, so that the locking part of the rear end of the positioning bolt 41 is locked in the corresponding positioning hole 51 to keep the roller wiping mechanism 6 fixed.

[0027] After manually spraying alcohol onto the inner countertop of the main body 1 of the biosafety cabinet, the transverse reciprocating drive device 2 can drive the carrier block 4, the movable box 5, and the roller wiping mechanism 6 to move laterally and reciprocally via the L-shaped support 3. This allows the roller wiping mechanism 6 to evenly coat and wipe the inner countertop with disinfectant, saving effort and improving disinfection efficiency. At the same time, the roller wiping mechanism 6 can perform wiping work over a large area, ensuring that the countertop area used for testing inside the cabinet is thoroughly disinfected and ensuring the safety of the experiment.

[0028] It should be noted that, in combination Figure 1 and Figure 3 As shown, the transverse reciprocating drive device 2 includes a carrier frame 21 fixedly installed below the main body 1 of the safety cabinet. A forward and reverse servo motor 22 is fixedly installed on the left side of the carrier frame 21. A lead screw 23 is fixedly connected to the output end of the forward and reverse servo motor 22. The lead screw 23 is rotatably installed inside the carrier frame 21, and a lead screw slide 231 is sleeved on the outer surface of the lead screw 23. The lead screw slide 231 is fixedly connected to the L-shaped support 3. A guide rod 24 is fixedly installed inside the carrier frame 21. The lead screw slide 231 and the guide rod 24 are slidably connected. The forward and reverse servo motor 22 is connected to an external power supply and an external controller. The external controller controls the start and stop of the forward and reverse servo motor 22 and its forward or reverse rotation. When the forward and reverse servo motor 22 is started, it can drive the lead screw 23 to rotate, thereby using the lead screw 23 to drive the lead screw slide 231 to slide, and then using the L-shaped support 3 to drive the roller-shaped wiping mechanism 6 above to move forward, performing coating and wiping work on the inner table surface of the cabinet.

[0029] Combination Figure 4As shown, the roller-shaped wiping mechanism 6 includes a long roller 61 and a wiping cloth sleeve 62. The long roller 61 is a steel metal rod and is located on the rear side of the movable box 5. The outer surface of the long roller 61 has an axially formed tightening groove 611. The wiping cloth sleeve 62 is detachably fitted onto the outer surface of the long roller 61. An elastic rubber ring is sewn to the front end of the wiping cloth sleeve 62. The elastic rubber ring fits into the tightening groove 611 to fix the wiping cloth sleeve 62 to the outer surface of the long roller 61. The thickness of the wiping cloth sleeve 62 is at least one centimeter. In use, the wiping cloth sleeve 62 is in contact with the inner table surface of the safety cabinet body 1. The wiping cloth sleeve 62 is a disposable product. After use, it can be removed from the outer surface of the long roller 61 for replacement, either once or periodically.

[0030] In addition, considering that the non-contact surface between the wiping cloth cover 62 and the cabinet tabletop is not utilized and thus wastes resources, an installation cavity 52 is provided in the movable box 5, and a fine-tuning motor 7 is fixedly installed in the installation cavity 52. ​​Multiple heat dissipation holes are opened through the installation cavity 52 to dissipate heat from the fine-tuning motor 7. After the output end of the fine-tuning motor 7 is fixedly connected to the front end of the long roller 61, the fine-tuning motor 7 can drive the long roller 61 to rotate, thereby adjusting the contact surface between the wiping cloth cover 62 and the cabinet tabletop, so that the wiping cloth cover 62 can be fully utilized and resources can be saved to a certain extent.

[0031] Finally, to improve the stability of the long roller 61, a reinforcing frame 8 is fixedly installed on the rear surface of the movable box 5. The front end of the long roller 61 is rotatably mounted inside the reinforcing frame 8 through a bearing. The reinforcing frame 8 can effectively support the connection end of the long roller 61 and the fine-tuning motor 7, thereby improving its stability during operation.

Claims

1. A protective device for biological detection, comprising a safety cabinet body (1), characterized in that, A transverse reciprocating drive device (2) is fixedly installed on the lower surface of the main body (1) of the safety cabinet. An L-shaped support (3) is fixedly installed on the front surface of the transverse reciprocating drive device (2). A carrier block (4) is fixedly installed on the upper surface of the L-shaped support (3). The carrier block (4) is transversely h-shaped, and a movable box (5) is rotatably installed inside the carrier block (4). An adjustable positioning component is provided between the movable box (5) and the carrier block (4). A roller wiping mechanism (6) is installed on the rear side of the movable box (5). Located inside the main body (1) of the safety cabinet, the roller wiping mechanism (6) is used to wipe the inner surface of the main body (1) of the safety cabinet. The roller wiping mechanism (6) includes a long roller (61) and a wiping cloth sleeve (62). The long roller (61) is located on the rear side of the movable box (5), and the outer surface of the long roller (61) is provided with a tightening groove (611) in an axial direction. The wiping cloth sleeve (62) is sleeved on the outer surface of the long roller (61), and the front end of the wiping cloth sleeve (62) is sewn with an elastic rubber ring, which is sleeved in the tightening groove (611).

2. The protective device for biological detection according to claim 1, characterized in that, The transverse reciprocating drive device (2) includes a carrier (21) fixedly installed below the main body (1) of the safety cabinet. A forward and reverse servo motor (22) is fixedly installed on the left side of the carrier (21). A lead screw (23) is fixedly connected to the output end of the forward and reverse servo motor (22). The lead screw (23) is rotatably installed inside the carrier (21), and a lead screw slide (231) is sleeved on the outer surface of the lead screw (23). The lead screw slide (231) is fixedly connected to the L-shaped support (3). A guide rod (24) is fixedly installed inside the carrier (21). The lead screw slide (231) and the guide rod (24) are slidably connected.

3. A protective device for biological detection according to claim 2, characterized in that, The left and front surfaces of the movable box (5) are provided with positioning holes (51). The positioning component is a positioning bolt (41). The positioning bolt (41) is threaded through and screwed onto the left surface of the carrier block (4). The right end of the positioning bolt (41) is provided with a snap-fit ​​part. The snap-fit ​​part is snapped into the corresponding positioning hole (51) to fix the movable box (5).

4. A protective device for biological detection according to claim 1, characterized in that, The active box (5) is provided with an installation cavity (52), and a fine-tuning motor (7) is fixedly installed in the installation cavity (52). The output end of the fine-tuning motor (7) is fixedly connected to the front end of the long roller (61).

5. A protective device for biological detection according to claim 4, characterized in that, A reinforcing frame (8) is fixedly installed on the rear surface of the active box (5), and the front end of the long roller (61) is rotatably mounted inside the reinforcing frame (8) through a bearing.

6. A protective device for biological detection according to claim 4, characterized in that, Multiple heat dissipation holes are provided through the mounting cavity (52).

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