Experimental safety cabinet capable of rapidly and automatically eliminating biological hazards

Abstract

The utility model discloses an experimental safety cabinet capable of quickly and automatically eliminating biological hazard, which comprises a safety cabinet shell for supporting, a servo motor is arranged on the upper end surface of the safety cabinet shell close to the front part, and a stepping motor for transmission is arranged on the rear end surface of the servo motor. When the device is used for eliminating biological hazards, the sealing device can synchronously drive the two groups of ball sliding seats and the fixed clamping seats to perform centripetal displacement through the ball screw, so that the two groups of fixed clamping seats can synchronously drive the fixed pressing blocks to be pressed into the transparent experiment box, and the elimination operation is quickly and stably completed; an air inlet fan can conduct secondary disinfection after elimination, the safety performance of the interior of the safety cabinet shell is improved, a threaded guide base is in threaded connection with a connecting lead screw, the automation degree of the safety cabinet shell for conducting a sealing experiment can be improved, the stability of the sealing cabinet door for closing the safety cabinet shell can also be improved, and the safety performance of the safety cabinet shell is improved. Therefore, the safety of the subsequent internal experiment of the safety cabinet shell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety cabinet equipment, in particular to a laboratory safety cabinet for quickly and automatically eliminating biological hazards. Background Technique

[0002] The safety cabinet for biological experiments is an indispensable important equipment in biological laboratories, mainly used to protect experimental personnel, experimental samples and the environment from pollution and harm, thereby improving the safety and efficiency of staff in conducting biological experiments.

[0003] However, when the existing test safety cabinets conduct experiments on some dangerous organisms, it is not convenient to quickly and stably eliminate the out-of-control organisms, and it is also not convenient to quickly disinfect the eliminated organisms, reducing the test safety of the experimental safety cabinets. Therefore, there is an urgent need for a laboratory safety cabinet for quickly and automatically eliminating biological hazards to solve the above existing problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a laboratory safety cabinet for quickly and automatically eliminating biological hazards to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A laboratory safety cabinet for quickly and automatically eliminating biological hazards, including a safety cabinet housing for support, a fixed guide seat is arranged at the front part near the upper end surface of the safety cabinet housing, and a stepping motor for transmission is arranged at the rear end surface of the fixed guide seat. A connecting lead screw is fixedly arranged at the output end of the stepping motor.

[0006] A closing device, the closing device is threadedly slidably connected to the front end surface of the safety cabinet housing through the connecting lead screw;

[0007] A servo motor, the servo motor is fixedly arranged at the rear part near the upper end surface of the safety cabinet housing close to the fixed guide seat, and a ball screw is fixedly arranged at the output end of the servo motor;

[0008] A guiding device, there are two groups of the guiding devices in total. The two groups of guiding devices are threadedly slidably connected to the inner end surface of the safety cabinet housing through the ball screw. A fixed pressing block is arranged at the lower end surface of the upper guiding device, and a transparent experimental box is arranged at the upper end surface of the lower guiding device.

[0009] Preferably, the guiding device includes a fixed clamping seat, a limiting guide seat is arranged at the rear part near the upper end surface of the fixed clamping seat, and a ball sliding seat is fixedly arranged at the center of the upper end surface of the limiting guide seat.

[0010] Preferably, the closing device includes a sealed cabinet door for support. An air intake fan is provided at the center of the front end face of the sealed cabinet door, and a threaded guide base is fixedly provided at the center of the upper end face of the sealed cabinet door. Fixed guide rods are provided at the four corners of the inner end face of the sealed cabinet door.

[0011] Preferably, guide chutes are provided at the four corners of the front end face of the safety cabinet housing. The sealed cabinet door is adapted to the fixed guide rods through the guide chutes, and the threaded guide base is adapted to the connecting screw rod, and then is threadedly slidably connected to the front end face of the safety cabinet housing, which can effectively improve the stability of the subsequent alignment of the sealed cabinet door to the front of the safety cabinet housing, and at the same time improve the convenience of closing the sealed cabinet door and the safety cabinet housing.

[0012] Preferably, the upper and lower two groups of limit guide seats are threadedly connected to the ball screw through the ball slide seats, and the fixed clamping seat is slidably clamped inside the safety cabinet housing. The threaded connection between the ball slide seat and the ball screw can effectively improve the pressing force and accuracy of the subsequent fixed pressing block on the organisms inside the transparent experimental box.

[0013] Preferably, the fixed pressing block is slidably clamped to the transparent experimental box, and the air intake fan is directly opposite between the transparent experimental box and the fixed pressing block, which can effectively improve the efficiency of subsequent disinfection of the eliminated organisms.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. When the present utility model eliminates biological hazards, the closing device can synchronously drive two groups of ball slide seats and fixed clamping seats to perform centripetal displacement through the ball screw, so that the two groups of fixed clamping seats can synchronously drive the fixed pressing block to be pressed into the transparent experimental box, and then quickly and stably complete the elimination operation. And the air intake fan can perform secondary disinfection after elimination, improving the safety performance inside the safety cabinet housing. The threaded connection between the threaded guide base and the connecting screw rod can not only improve the automation degree of the closed experiment of the safety cabinet housing, but also improve the stability of the sealed cabinet door closing the safety cabinet housing, thereby improving the safety of subsequent experiments inside the safety cabinet housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded view of the main body of the present utility model;

[0017] Figure 2 is a structural schematic diagram of the main body of the present utility model;

[0018] Figure 3 is a structural schematic diagram of the guiding device of the present utility model;

[0019] Figure 4Schematic structural diagram of the closing device of the present utility model.

[0020] In the figure: 1-ball screw, 2-transparent experimental box, 3-fixed pressing block, 4-guiding device, 5-closing device, 6-servo motor, 7-fixed guiding seat, 8-safe cabinet housing, 9-stepping motor, 10-connecting screw rod, 41-ball sliding seat, 42-limit guiding seat, 43-fixed clamping seat, 51-fixed guiding rod, 52-threaded guiding seat, 53-intake fan, 54-sealing cabinet door. Specific implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 , an embodiment provided by the present utility model: A safety cabinet for experiments that quickly and automatically eliminates biological hazards includes a safe cabinet housing 8 for support. A fixed guiding seat 7 is provided at the front part near the upper end surface of the safe cabinet housing 8, and a stepping motor 9 for transmission is provided at the rear end surface of the fixed guiding seat 7. A connecting screw rod 10 is fixedly provided at the output end of the stepping motor 9.

[0023] Closing device 5, and the closing device 5 is threadedly slidably connected to the front end surface of the safe cabinet housing 8 through the connecting screw rod 10;

[0024] Closing device 5, the closing device 5 is fixedly provided at the rear part near the upper end surface of the safe cabinet housing 8 close to the fixed guiding seat 7, and a ball screw 1 is fixedly provided at the output end of the closing device 5;

[0025] Guiding device 4, there are two groups of guiding devices 4 in total. The two groups of guiding devices 4 are threadedly slidably connected to the inner end surface of the safe cabinet housing 8 through the ball screw 1. A fixed pressing block 3 is provided at the lower end surface of the upper guiding device 4, and a transparent experimental box 2 is provided at the upper end surface of the lower guiding device 4.

[0026] The guiding device 4 includes a fixed clamping seat 43. A limit guiding seat 42 is provided at the rear part near the upper end surface of the fixed clamping seat 43, and a ball sliding seat 41 is fixedly provided at the center of the upper end surface of the limit guiding seat 42.

[0027] The closing device 5 includes a sealed cabinet door 54 for support. An intake fan 53 is provided at the center of the front end face of the sealed cabinet door 54, and a threaded guide base 52 is fixedly provided at the center of the upper end face of the sealed cabinet door 54. Fixed guide rods 51 are provided at the four corners of the inner end face of the sealed cabinet door 54.

[0028] Guide chutes are provided at the four corners of the front end face of the safety cabinet housing 8. The sealed cabinet door 54 is threadedly slidably connected to the front end face of the safety cabinet housing 8 through the cooperation of the guide chutes and the fixed guide rods 51 and the cooperation of the threaded guide base 52 and the connecting lead screw 10, which can effectively improve the stability of the subsequent alignment of the sealed cabinet door 54 to the front part of the safety cabinet housing 8 and also improve the convenience of closing the sealed cabinet door 54 and the safety cabinet housing 8.

[0029] The upper and lower groups of limit guide bases 42 are both threadedly connected to the ball screw 1 through ball sliders 41, and the fixed clamping seats 43 are slidably clamped inside the safety cabinet housing 8. The threaded connection between the ball sliders 41 and the ball screw 1 can effectively improve the force and accuracy of the subsequent pressing of the fixed pressing block 3 on the organisms inside the transparent experimental box 2.

[0030] The fixed pressing block 3 is slidably clamped to the transparent experimental box 2, and the intake fan 53 is directly opposite between the transparent experimental box 2 and the fixed pressing block 3, which can effectively improve the efficiency of subsequent disinfection of the eliminated organisms.

[0031] Working principle: When in use, if it is necessary to perform experimental operations on some relatively dangerous organisms, at this time, the user can position the organisms to be experimented on inside the transparent experimental box 2, and then start the stepper motor 9. At this time, the stepper motor 9 can drive the connecting lead screw 10 to rotate, so that the connecting lead screw 10 can drive the sealed cabinet door 54 to close in front of the safety cabinet housing 8 through the threaded connection with the threaded guide base 52. At this time, the experimenter can observe the experimental process of the organisms inside the transparent experimental box 2 through the preset window. If it is necessary to eliminate the biological hazards after the experiment, at this time, the staff can start the closing device 5. At this time, the closing device 5 can drive the ball screw 1 to rotate, and at the same time, the ball screw 1 can drive the two groups of fixed clamping seats 43 to perform centripetal displacement through the threaded connection with the two groups of ball sliders 41, so that the upper fixed pressing block 3 can gradually press onto the experimental biological materials inside the transparent experimental box 2. After the pressing is completed, at this time, the closing device 5 can drive the transparent experimental box 2 to separate from the fixed pressing block 3 through the ball screw 1, and at the same time, the intake fan 53 can introduce the external disinfection gas into the safety cabinet housing 8 for disinfection. Until the disinfection is completely completed, the staff can repeat the above opening steps to take out the biological experimental materials.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A safety cabinet for rapid automated elimination of biological hazards in experiments, including a safety cabinet housing (8) for support. At the front part near the upper end face of the safety cabinet housing (8), a fixed guide base (7) is provided. And at the rear end face of the fixed guide base (7), a stepping motor (9) for transmission is provided. At the output end of the stepping motor (9), a connecting lead screw (10) is fixedly provided. It is characterized in that: A closing device (5), and the closing device (5) is threadedly and slidably connected to the front end face of the safety cabinet housing (8) through the connecting lead screw (10); A servo motor (6), and the servo motor (6) is fixedly provided at the rear part near the fixed guide base (7) on the upper end face of the safety cabinet housing (8). At the output end of the servo motor (6), a ball screw (1) is fixedly provided; A guiding device (4), and there are two groups of the guiding devices (4) in total. The two groups of guiding devices (4) are threadedly and slidably connected to the inner end face of the safety cabinet housing (8) through the ball screw (1). At the lower end face of the upper guiding device (4), a fixed pressing block (3) is provided. At the upper end face of the lower guiding device (4), a transparent experimental box (2) is provided.

2. The safety cabinet for experiments for quickly and automatically eliminating biological hazards according to claim 1, characterized in that: The guiding device (4) includes a fixed clamping seat (43). At the rear part near the upper end face of the fixed clamping seat (43), a limit guide base (42) is provided. At the center of the upper end face of the limit guide base (42), a ball slide seat (41) is fixedly provided.

3. The safety cabinet for experiments for quickly and automatically eliminating biological hazards according to claim 2, wherein: The closing device (5) includes a sealing cabinet door (54) for support. At the center of the front end face of the sealing cabinet door (54), an intake fan (53) is provided. And at the center of the upper end face of the sealing cabinet door (54), a threaded guide base (52) is fixedly provided. At the four corners of the inner end face of the sealing cabinet door (54), fixed guide rods (51) are provided.

4. The safety cabinet for experiments for rapidly and automatically eliminating biological hazards according to claim 3, characterized in that: At the four corners of the front end face of the safety cabinet housing (8), guiding chutes are opened. And the sealing cabinet door (54) is threadedly and slidably connected to the front end face of the safety cabinet housing (8) through the cooperation of the guiding chutes and the fixed guide rods (51) and the cooperation of the threaded guide base (52) and the connecting lead screw (10).

5. The safety cabinet for experiments for rapidly and automatically eliminating biological hazards according to claim 3, wherein: The upper and lower limit guide bases (42) are both threadedly connected to the ball screw (1) through the ball slide seats (41). And the fixed clamping seat (43) is slidably clamped inside the safety cabinet housing (8).

6. The safety cabinet for experiments for rapidly and automatically eliminating biological hazards according to claim 3, characterized in that: The fixed pressing block (3) is slidably clamped with the transparent experimental box (2). And the intake fan (53) is directly opposite between the transparent experimental box (2) and the fixed pressing block (3).

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