Biological safety cabinet cleaning mechanism

Abstract

The invention relates to the technical field of biological safety cabinets, in particular to a biological safety cabinet cleaning mechanism which comprises a safety cabinet body, a first limiting cylinder is fixedly connected to the upper surface of the safety cabinet body, a second limiting cylinder is fixedly connected to the upper surface of the safety cabinet body, and a motor is fixedly connected to the inner wall of the safety cabinet body. The output end of the motor is fixedly connected with a first synchronous wheel, and the interior of the safety cabinet body is rotationally connected with a second synchronous wheel. A motor is started to drive a first synchronous wheel to rotate, the first synchronous wheel rotates and drives a first synchronous belt to rotate at the same time, the first synchronous belt rotates to drive a second synchronous wheel and a second synchronous belt to rotate, then a third synchronous wheel is driven to rotate, the second synchronous wheel and the third synchronous wheel are promoted to rotate synchronously, and a first lead screw and a second lead screw are driven to conduct synchronous lifting adjustment; and the inner wall of the safety cabinet body is cleaned through the cleaning assembly, operation is convenient, and the inner wall of the safety cabinet body can be rapidly and comprehensively cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of biosafety cabinets, and in particular to a cleaning mechanism for a biosafety cabinet. Background Art

[0002] A biosafety cabinet is a box-type air purification negative pressure safety device that can prevent the aerosol escape of some dangerous or unknown biological particles during the experimental operation process. After the biosafety cabinet is used, its interior needs to be cleaned.

[0003] In the prior art, after the conventional biosafety cabinet is used, the inner wall of the biosafety cabinet is usually wiped by an operator with a cleaning cloth. During the wiping process, due to the small internal space of the biosafety cabinet and the limited operation space of the operator, the inner wall of the biosafety cabinet cannot be wiped and cleaned comprehensively, and the cleaning efficiency is low by manual wiping. Summary of the Invention

[0004] In view of this, the present invention provides a cleaning mechanism for a biosafety cabinet. The main technical problem to be solved is that when the operator wipes and cleans the inner wall of the biosafety cabinet, due to the limited operation space, the wiping operation is inconvenient, and the inner wall of the biosafety cabinet cannot be cleaned comprehensively and quickly.

[0005] To achieve the above object, the present invention adopts the following technical solution: A cleaning mechanism for a biosafety cabinet, including a safety cabinet body, a first limiting cylinder is fixedly connected to the upper surface of the safety cabinet body, a second limiting cylinder is fixedly connected to the upper surface of the safety cabinet body, a motor is fixedly connected to the inner wall of the safety cabinet body, a first synchronous pulley is fixedly connected to the output end of the motor, a second synchronous pulley is rotatably connected to the inside of the safety cabinet body, a first synchronous belt is rotatably connected to the outer walls of the first synchronous pulley and the second synchronous pulley, a third synchronous pulley is rotatably connected to the inside of the safety cabinet body, a second synchronous belt is rotatably connected to the outer walls of the second synchronous pulley and the third synchronous pulley, a first lead screw is threadedly connected to the inside of the second synchronous pulley, a second lead screw is threadedly connected to the inside of the third synchronous pulley, the first lead screw is slidably connected to the inside of the first limiting cylinder, the third synchronous pulley is slidably connected to the inside of the second limiting cylinder, both the first lead screw and the third synchronous pulley are slidably connected to the inside of the safety cabinet body, and a cleaning assembly is installed on the lower surfaces of the first lead screw and the second lead screw. The cleaning assembly is used to clean the inner wall of the safety cabinet body.

[0006] By adopting the above technical solution, the starting motor drives the first synchronous pulley and the first synchronous belt to rotate. The rotation of the first synchronous belt drives the second synchronous pulley and the second synchronous belt to rotate, prompting the third synchronous pulley to rotate, and then driving the first lead screw and the second lead screw to lift and adjust synchronously. While the first lead screw and the second lead screw are lifting, the cleaning component is driven to lift and adjust. During the process of the lifting and adjustment of the cleaning component, the inner wall of the safety cabinet body is cleaned, achieving the effect of quickly and comprehensively cleaning the inner wall of the safety cabinet body and improving the cleaning efficiency.

[0007] As a further description of the above technical solution: The cleaning component includes a mounting frame, the mounting frame is fixedly connected to the lower surfaces of the first lead screw and the second lead screw, the mounting frame is of a U-shaped structure, and three cleaning brush plates are arranged on the outer wall of the mounting frame. The outer walls of the three cleaning brush plates are all in contact with the inner wall of the safety cabinet body.

[0008] By adopting the above technical solution, the mounting frame is of a U-shaped structure and is combined with three cleaning brush plates for installation. Through the contact between the three cleaning brush plates and the inner wall of the safety cabinet body, during the lifting process of the cleaning component, the three cleaning brush plates clean the inner wall of the safety cabinet body simultaneously, improving the cleaning efficiency and being able to comprehensively clean the inner wall of the safety cabinet body.

[0009] As a further description of the above technical solution: Two clamping blocks are slidably connected inside the cleaning brush plate, and sliding rods are fixedly connected to the outer walls of the two clamping blocks. The clamping blocks and the sliding rods are slidably connected inside the mounting frame.

[0010] By adopting the above technical solution, the sliding rods and the clamping blocks limit and install the cleaning brush plate on the outer wall of the mounting frame, facilitating the disassembly of the cleaning brush plate.

[0011] As a further description of the above technical solution: A pulling plate is fixedly connected to the outer wall of the sliding rod, a spring is sleeved on the outer wall of the sliding rod, one end of the spring is fixedly connected inside the pulling plate, and the other end of the spring is fixedly connected inside the mounting frame.

[0012] By adopting the above technical solution, pulling the pulling plate outwards drives the sliding rod and the clamping block to slide, prompting the clamping block to slide out of the inside of the cleaning brush plate, and then the cleaning brush plate can be disassembled and removed for replacement or cleaning.

[0013] As a further description of the above technical solution: A glass window is slidably connected inside the safety cabinet body, a plurality of leakage holes are opened inside the safety cabinet body, a dust collection box is slidably connected inside the safety cabinet body, and the dust collection box is arranged directly below the safety cabinet body.

[0014] By adopting the above technical solution, the dust generated by cleaning is fallen into the inside of the dust collection box through the leakage holes by the brush, and the dust collection box can be slid out to clean the dust inside the dust collection box.

[0015] As a further description of the above technical solution: An air inlet pipe is provided on the right side of the outer wall of the safety cabinet body. An air pump one is installed on the outer wall of the air inlet pipe. The air inlet end of the air pump one is fixedly connected to one end of the air inlet pipe. The air outlet end of the air pump one is fixedly connected to a valve one. One end of the valve one is fixedly connected inside the safety cabinet body.

[0016] By adopting the above technical solution, a gas filter is installed inside the air inlet pipe, and then the valve one and the air pump one are opened to filter the external gas and draw it into the inside of the safety cabinet body.

[0017] As a further description of the above technical solution: An air outlet pipe is provided on the back of the safety cabinet body. One end of the air outlet pipe is fixedly connected to an air pump two. The air outlet end of the air pump two is fixedly connected to one end of the air outlet pipe. The air inlet end of the air pump two is fixedly connected to a valve two. One end of the valve two is fixedly connected inside the safety cabinet body.

[0018] By adopting the above technical solution, a gas filter is installed inside the air outlet pipe. The valve two and the air pump two are opened to discharge the gas inside the safety cabinet body while filtering it and then discharging it.

[0019] As a further description of the above technical solution: Support frames are fixedly connected to both sides of the outer wall of the safety cabinet body. A controller is fixedly connected to the outer wall of the safety cabinet body. The controller is arranged on the front of the safety cabinet body.

[0020] By adopting the above technical solution, the support frames are used to support the safety cabinet body, and the controller is used to control the operation of the equipment inside the safety cabinet body.

[0021] By means of the above technical solution, the biological safety cabinet cleaning mechanism of the present invention has at least the following beneficial effects:

[0022] 1. Compared with the prior art, for this biological safety cabinet cleaning mechanism, by starting the motor to drive the first synchronous wheel to rotate, while the first synchronous wheel rotates, it drives the first synchronous belt to rotate. The rotation of the first synchronous belt drives the second synchronous wheel and the second synchronous belt to rotate, and then drives the third synchronous wheel to rotate, prompting the second synchronous wheel and the third synchronous wheel to rotate synchronously and driving the first lead screw and the second lead screw to lift and adjust synchronously, prompting the cleaning assembly to lift and adjust, and cleaning the inner wall of the safety cabinet body through the cleaning assembly. It is not only convenient to operate but also can quickly and comprehensively clean the inner wall of the safety cabinet body.

[0023] 2. Compared with the prior art, for this biosafety cabinet cleaning mechanism, by pulling the pull plate outwards, the pull plate drives the sliding rod and the clamping block to slide outwards, and makes the clamping block slide out of the inside of the cleaning brush plate. Furthermore, the cleaning brush plate can be moved up and down and then removed to clean or replace the cleaning brush plate. Then, also pull the pull plate outwards to place the clamping block inside the mounting bracket. Place the cleaned or replaced cleaning brush plate between the mounting bracket and the main body of the biosafety cabinet, and align the cleaning brush plate with the mounting bracket. Then release the pull plate, and use the spring to drive the pull plate, the sliding rod and the clamping block to reset, so that the clamping block is limited and clamped inside the cleaning brush plate, and the cleaning brush plate is limited and fixed on the outer wall of the mounting bracket. Moreover, the brush part of the cleaning brush plate fits against the inner wall of the main body of the biosafety cabinet, achieving the effect that the cleaning brush plate is convenient to disassemble and assemble. Description of the Drawings

[0024] Figure 1 It is the overall structure diagram of a biosafety cabinet cleaning mechanism proposed by the present invention;

[0025] Figure 2 It is the storage structure diagram of the cleaning component of a biosafety cabinet cleaning mechanism proposed by the present invention;

[0026] Figure 3 It is the working structure diagram of the cleaning component of a biosafety cabinet cleaning mechanism proposed by the present invention;

[0027] Figure 4 It is the structure diagram of the cleaning component of a biosafety cabinet cleaning mechanism proposed by the present invention;

[0028] Figure 5 It is the structure diagram of the air inlet pipe of a biosafety cabinet cleaning mechanism proposed by the present invention.

[0029] Legend Explanation:

[0030] 1. Main body of the biosafety cabinet; 101. First limiting cylinder; 102. Second limiting cylinder; 103. Glass window; 104. Leakage hole; 105. Dust collection box; 106. Support frame; 2. Motor; 3. First synchronous pulley; 301. First synchronous belt; 4. Second synchronous pulley; 401. Second synchronous belt; 5. First lead screw; 6. Third synchronous pulley; 7. Second lead screw; 8. Cleaning component; 801. Mounting bracket; 802. Cleaning brush plate; 803. Pull plate; 804. Sliding rod; 805. Clamping block; 806. Spring; 9. Air inlet pipe; 901. First air pump; 902. First valve; 10. Air outlet pipe; 1001. Second air pump; 1002. Second valve; 11. Controller. Detailed Embodiment

[0031] Refer to Figures 1-5, a biosafety cabinet cleaning mechanism provided by the present invention: It includes a safety cabinet body 1. A first limiting cylinder 101 is fixedly connected to the upper surface of the safety cabinet body 1, and a second limiting cylinder 102 is fixedly connected to the upper surface of the safety cabinet body 1. A motor 2 is fixedly connected to the inner wall of the safety cabinet body 1. The output end of the motor 2 is fixedly connected to a first synchronous pulley 3, and the output end of the motor 2 rotates inside the safety cabinet body 1. A second synchronous pulley 4 is rotatably connected inside the safety cabinet body 1, and the second synchronous pulley 4 is rotationally limited inside the safety cabinet body 1. A first synchronous belt 301 is rotatably connected to the outer walls of the first synchronous pulley 3 and the second synchronous pulley 4. The rotation of the first synchronous pulley 3 drives the rotation of the first synchronous belt 301, which prompts the rotation of the second synchronous pulley 4, realizing the synchronous rotation of the first synchronous pulley 3 and the second synchronous pulley 4. A third synchronous pulley 6 is rotatably connected inside the safety cabinet body 1, and the third synchronous pulley 6 is rotationally limited inside the safety cabinet body 1. A second synchronous belt 401 is rotatably connected to the outer walls of the second synchronous pulley 4 and the third synchronous pulley 6. The rotation of the second synchronous pulley 4 drives the rotation of the second synchronous belt 401, which prompts the rotation of the third synchronous pulley 6, realizing the synchronous rotation of the second synchronous pulley 4 and the third synchronous pulley 6. A first lead screw 5 is threadedly connected inside the second synchronous pulley 4, and a second lead screw 7 is threadedly connected inside the third synchronous pulley 6. The rotation of the second synchronous pulley 4 drives the lifting adjustment of the first lead screw 5, and the rotation of the third synchronous pulley 6 drives the lifting adjustment of the second lead screw 7. Since the second synchronous pulley 4 and the third synchronous pulley 6 rotate synchronously, the first lead screw 5 and the second lead screw 7 are lifted and lowered synchronously. The first lead screw 5 is slidably connected inside the first limiting cylinder 101, and the first lead screw 5 is slidably limited inside the first limiting cylinder 101. The third synchronous pulley 6 is slidably connected inside the second limiting cylinder 102, and the third synchronous pulley 6 is slidably limited inside the second limiting cylinder 102. Both the first lead screw 5 and the third synchronous pulley 6 are slidably connected inside the safety cabinet body 1. A cleaning assembly 8 is installed on the lower surfaces of the first lead screw 5 and the second lead screw 7. When the first lead screw 5 and the second lead screw 7 are lifted and lowered synchronously, they drive the lifting adjustment of the cleaning assembly 8. The cleaning assembly 8 is used to clean the inner wall of the safety cabinet body 1;

[0032] The cleaning assembly 8 includes a mounting bracket 801, and the mounting bracket 801 is fixedly connected to the lower surfaces of the first lead screw 5 and the second lead screw 7. The mounting bracket 801 is of a U-shaped structure. Three cleaning brush plates 802 are provided on the outer wall of the mounting bracket 801. The three cleaning brush plates 802 are respectively arranged on three sides of the outer wall of the mounting bracket 801. The outer walls of the three cleaning brush plates 802 are all in contact with the inner wall of the safety cabinet body 1. The brush body parts of the three cleaning brush plates 802 are in contact with the inner wall of the safety cabinet body 1 to clean the inner wall of the safety cabinet body 1. Two clamping blocks 805 are slidably connected inside the cleaning brush plate 802. Slide rods 804 are fixedly connected to the outer walls of the two clamping blocks 805. The clamping blocks 805 and the slide rods 804 are slidably connected inside the mounting bracket 801. The cleaning brush plate 802 is limited and fixed to the outer wall of the mounting bracket 801 through the clamping blocks 805. A pull plate 803 is fixedly connected to the outer wall of the slide rod 804. A spring 806 is sleeved on the outer wall of the slide rod 804. One end of the spring 806 is fixedly connected to the inside of the pull plate 803, and the other end of the spring 806 is fixedly connected to the inside of the mounting bracket 801. The spring 806 supports the pull plate 803, the slide rod 804 and the clamping block 805, and at the same time can also play an effect of automatic reset;

[0033] A glass window 103 is slidably connected inside the safety cabinet body 1. A plurality of leakage holes 104 are formed inside the safety cabinet body 1. The positions of the plurality of leakage holes 104 correspond to those of three cleaning brush plates 802. A dust collection box 105 is slidably connected inside the safety cabinet body 1. The dust collection box 105 is arranged directly below the safety cabinet body 1. The dust generated by cleaning can fall into the interior of the dust collection box 105 through the leakage holes 104. The dust collection box 105 can be slid out to clean the dust collected inside the dust collection box 105. An air inlet pipe 9 is arranged on the right side of the outer wall of the safety cabinet body 1. A gas filter is installed inside the air inlet pipe 9, which can filter the gas entering the interior of the safety cabinet body 1 before conveying it into the interior of the safety cabinet body 1. An air pump 901 is installed on the outer wall of the air inlet pipe 9. The air inlet end of the air pump 901 is fixedly connected to one end of the air inlet pipe 9. The air outlet end of the air pump 901 is fixedly connected to a valve 902. One end of the valve 902 is fixedly connected inside the safety cabinet body 1. When air needs to be introduced into the interior of the safety cabinet body 1, the valve 902 is opened and the air pump 901 is started. During the start-up process, the air pump 901 sucks external gas into the interior of the air inlet pipe 9. Then, the gas is filtered by the gas filter inside the air inlet pipe 9 and then enters the interior of the safety cabinet body 1 through the air pump 901 and the valve 902. An air outlet pipe 10 is arranged on the back of the safety cabinet body 1. A gas filter is installed inside the air outlet pipe 10, which can filter the discharged gas before discharging it. One end of the air outlet pipe 10 is fixedly connected to an air pump 1001. The air outlet end of the air pump 1001 is fixedly connected to one end of the air outlet pipe 10. The air inlet end of the air pump 1001 is fixedly connected to a valve 1002. One end of the valve 1002 is fixedly connected inside the safety cabinet body 1. When air needs to be exhausted from the interior of the safety cabinet body 1, the valve 1002 is opened and the air pump 1001 is started. The air pump 1001 extracts the gas inside the safety cabinet body 1, passes it through the valve 1002 and the air pump 1001, and then filters it through the gas filter inside the air outlet pipe 10 before discharging it from the interior of the safety cabinet body 1. Support frames 106 are fixedly connected to both sides of the outer wall of the safety cabinet body 1, which are used to support the safety cabinet body 1. A controller 11 is fixedly connected to the outer wall of the safety cabinet body 1, which is used to control the operation of the safety cabinet body 1, the motor 2, the air pump 901, the valve 902, the air pump 1001 and the valve 1002. The controller 11 is arranged on the front of the safety cabinet body 1.

[0034] Working principle: When it is necessary to clean the inner wall of the safety cabinet body 1, start the motor 2 to drive the first synchronous pulley 3 to rotate. The rotation of the first synchronous pulley 3 drives the first synchronous belt 301 to rotate. The rotation of the first synchronous belt 301 causes the second synchronous pulley 4 to rotate in a limited way inside the safety cabinet body 1. While the second synchronous pulley 4 rotates, it drives the second synchronous belt 401 to rotate. The rotation of the second synchronous belt 401 causes the third synchronous pulley 6 to rotate in a limited way inside the safety cabinet body 1, so as to realize the synchronous rotation of the first synchronous pulley 3, the second synchronous pulley 4 and the third synchronous pulley 6. While the second synchronous pulley 4 and the third synchronous pulley 6 rotate synchronously, they drive the first lead screw 5 and the second lead screw 7 to descend synchronously, causing the first lead screw 5 and the second lead screw 7 to move downward along the first limiting cylinder 101 and the second limiting cylinder 102 respectively, and then driving the cleaning assembly 8 to move downward. During the downward movement of the cleaning assembly 8, since the brush body parts of the three cleaning brush plates 802 are all in contact with the inner wall of the safety cabinet body 1, the inner wall of the safety cabinet body 1 can be cleaned. When the cleaning assembly 8 moves down to the lowest end, set the motor 2 to rotate in the reverse direction, causing the first synchronous pulley 3, the second synchronous pulley 4 and the third synchronous pulley 6 to rotate in the reverse direction, and then synchronously driving the first lead screw 5 and the second lead screw 7 to rise, and at the same time driving the cleaning assembly 8 to rise, causing the brush body parts of the three cleaning brush plates 802 to slide upward along the inner wall of the safety cabinet body 1 to clean the inner wall of the safety cabinet body 1 again. When the first lead screw 5 and the second lead screw 7 rise to the top inside the first limiting cylinder 101 and the second limiting cylinder 102, the motor 2 stops running. Repeating the above operations can clean the inner wall of the safety cabinet body 1 reciprocally when the safety cabinet body 1 stops working, which can not only clean the inside of the safety cabinet body 1 comprehensively, but also improve the cleaning efficiency. The glass window 103 can be wiped by the operator holding a cleaning cloth. During the process of the cleaning assembly 8 cleaning the inner wall of the safety cabinet body 1, dust is generated. The dust can fall into the inside of the dust collection box 105 through a plurality of leakage holes 104 opened inside the safety cabinet body 1. When the cleaning is completed and there is still dust remaining on the inner wall of the safety cabinet body 1, open the glass window 103, and the operator takes a brush to brush the dust to the position of the leakage holes 104 so that all the dust falls into the inside of the dust collection box 105. When regular cleaning is required, pull the dust collection box 105 outward to make it slide out of the inside of the safety cabinet body 1, and then clean the dust collected inside the dust collection box 105;When it is necessary to replace the cleaning brush plate 802 after long-term use, first adjust the height of the cleaning assembly 8 to the middle position inside the safety cabinet body 1 to facilitate the operator to take the cleaning brush plate 802. During the disassembly process, pull the pull plate 803 outward to the outside of the mounting bracket 801 to drive the sliding rod 804 and the clamping block 805 to slide outward, so that one end of the clamping block 805 slides out of the inside of the cleaning brush plate 802, canceling the limit on the cleaning brush plate 802. Then, the cleaning brush plate 802 can be removed by moving it up and down. All three cleaning brush plates 802 are disassembled in the same way. After cleaning or replacing the cleaning brush plate 802, when it needs to be installed, pull the pull plate 803 in the same way to make the clamping block 805 slide into the inside of the mounting bracket 801. Then, place the cleaning brush plate 802 between the mounting bracket 801 and the safety cabinet body 1 and align the cleaning brush plate 802 with the mounting bracket 801. Then release the pull plate 803, and use the elasticity of the spring 806 to drive the pull plate 803, the sliding rod 804 and the clamping block 805 to automatically reset, so that one end of the clamping block 805 is clamped into the inside of the cleaning brush plate 802 for limiting, thereby completing the installation work of the cleaning brush plate 802 and achieving the effect of facilitating the disassembly, assembly and replacement of the cleaning brush plate 802.;

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A biosafety cabinet cleaning mechanism, comprising a safety cabinet body (1), characterized in that: The upper surface of the safety cabinet body (1) is fixedly connected with a first limiting cylinder (101), the upper surface of the safety cabinet body (1) is fixedly connected with a second limiting cylinder (102), the inner wall of the safety cabinet body (1) is fixedly connected with a motor (2), the output end of the motor (2) is fixedly connected with a first synchronous pulley (3), the inside of the safety cabinet body (1) is rotatably connected with a second synchronous pulley (4), the outer walls of the first synchronous pulley (3) and the second synchronous pulley (4) are rotatably connected with a first synchronous belt (301), the inside of the safety cabinet body (1) is rotatably connected with a third synchronous pulley (6), the outer walls of the second synchronous pulley (4) and the third synchronous pulley (6) are rotatably connected with a second synchronous belt (401), a first lead screw (5) is threadedly connected inside the second synchronous pulley (4), a second lead screw (7) is threadedly connected inside the third synchronous pulley (6), the first lead screw (5) is slidably connected inside the first limiting cylinder (101), the third synchronous pulley (6) is slidably connected inside the second limiting cylinder (102), both the first lead screw (5) and the third synchronous pulley (6) are slidably connected inside the safety cabinet body (1), and a cleaning assembly (8) is installed on the lower surfaces of the first lead screw (5) and the second lead screw (7). The cleaning assembly (8) is used to clean the inner wall of the safety cabinet body (1).

2. The cleaning mechanism of a biological safety cabinet according to claim 1, characterized in that: The cleaning assembly (8) includes a mounting frame (801), the mounting frame (801) is fixedly connected to the lower surfaces of the first lead screw (5) and the second lead screw (7), the mounting frame (801) is of a U-shaped structure, and three cleaning brush plates (802) are arranged on the outer wall of the mounting frame (801). The outer walls of the three cleaning brush plates (802) are all in contact with the inner wall of the safety cabinet body (1).

3. The cleaning mechanism of a biological safety cabinet according to claim 2, characterized in that: Two clamping blocks (805) are slidably connected inside the cleaning brush plate (802), and sliding rods (804) are fixedly connected to the outer walls of the two clamping blocks (805). The clamping blocks (805) and the sliding rods (804) are slidably connected inside the mounting frame (801).

4. The cleaning mechanism of a biological safety cabinet according to claim 3, wherein: A pulling plate (803) is fixedly connected to the outer wall of the sliding rod (804), a spring (806) is sleeved on the outer wall of the sliding rod (804), one end of the spring (806) is fixedly connected to the inside of the pulling plate (803), and the other end of the spring (806) is fixedly connected to the inside of the mounting frame (801).

5. The cleaning mechanism of a biological safety cabinet according to claim 1, characterized in that: A glass window (103) is slidably connected inside the safety cabinet body (1), a plurality of leakage holes (104) are formed inside the safety cabinet body (1), and a dust collection box (105) is slidably connected inside the safety cabinet body (1). The dust collection box (105) is arranged directly below the safety cabinet body (1).

6. The cleaning mechanism of a biological safety cabinet according to claim 1, wherein: An air inlet pipe (9) is arranged on the right side of the outer wall of the safety cabinet body (1), an air pump one (901) is installed on the outer wall of the air inlet pipe (9), the air inlet end of the air pump one (901) is fixedly connected to one end of the air inlet pipe (9), and the air outlet end of the air pump one (901) is fixedly connected to a valve one (902). One end of the valve one (902) is fixedly connected to the inside of the safety cabinet body (1).

7. The cleaning mechanism of a biological safety cabinet according to claim 1, characterized in that: An air outlet pipe (10) is provided on the back of the safety cabinet body (1). One end of the air outlet pipe (10) is fixedly connected to an air pump two (1001). The air outlet end of the air pump two (1001) is fixedly connected to one end of the air outlet pipe (10). The air inlet end of the air pump two (1001) is fixedly connected to a valve two (1002). One end of the valve two (1002) is fixedly connected to the inside of the safety cabinet body (1).

8. A biosafety cabinet cleaning mechanism according to claim 1, characterized in that: Support frames (106) are fixedly connected to both sides of the outer wall of the safety cabinet body (1). A controller (11) is fixedly connected to the outer wall of the safety cabinet body (1). The controller (11) is arranged on the front of the safety cabinet body (1).

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