Biological safety cabinet with good sealing performance

Abstract

The utility model relates to the technical field of biological safety cabinets, in particular to a biological safety cabinet with good sealing performance, which comprises a safety cabinet main body, an operation groove is arranged on one side of the safety cabinet main body, a sealing plate is arranged on the safety cabinet main body close to the front side of the operation groove, and a slot is arranged on one side of the safety cabinet main body close to the bottom. And an inserting plate is inserted into the inserting groove, a fixing plate is fixedly connected to one side of the inserting plate, and a plate groove is formed in one side of the top of the fixing plate. The sealing device has the advantages that the bottom of the sealing plate is inserted into the sealing cushion layer, the sealing cushion layer can seal the bottom of the sealing plate, and the independent detachable fixing plate can facilitate maintenance and replacement of the sealing cushion layer in the fixing plate; when accidents and harmful gas leakage occur in the operation groove, the pulling plate can be pulled downwards, the sealing cloth on the outer surface of the rotating shaft is pulled out downwards, the sealing cloth can conduct emergency isolation on the internal space, a large amount of harmful gas is prevented from being diffused outwards, and the sealing performance of the device is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to biological safety cabinet technical field, especially a biological safety cabinet with good sealing property. BACKGROUND

[0002] The biological safety cabinet is a box type air purification negative pressure safety device capable of preventing some biological microparticles containing danger or unknownness from generating aerosol diffusion in the process of experimental operation and treatment, and is widely applied to the fields of microbiology, biomedical science, genetic engineering, biological products and the like, and is the most basic safety protection equipment in the first protection barrier of laboratory biological safety.

[0003] The biological safety cabinet with good sealing property disclosed in Chinese patent CN220683447U has the bottom sealing clamping plate clamped at the lower end of the sealing protection cover plate, thereby achieving the effect of stable sealing and closing use, but the sealing plate has a service life and needs to be replaced regularly, and the bottom sealing clamping plate has a fixed structure and is inconvenient to replace and maintain. UTILITY MODEL CONTENT

[0004] The utility model aims at solving at least one of the technical defects.

[0005] The utility model aims at overcoming the defects of the prior art, solving the problems mentioned in the background art, and providing a biological safety cabinet with good sealing property.

[0006] The utility model discloses the following technical scheme to achieve the purpose: a biological safety cabinet with good sealing property, comprising a safety cabinet main body, one side of the safety cabinet main body is provided with an operation groove, the safety cabinet main body is close to the operation groove front side and is provided with a sealing plate, the safety cabinet main body is close to the bottom side and is provided with a slot, the slot is internally inserted with a plugboard, one side of the plugboard is fixedly connected with a fixed plate, one side of the top of the fixed plate is provided with a plate groove, the plate groove is internally provided with a sealing pad layer, the bottom of the sealing plate is inserted into the inside of the plate groove, and the left and right sides of the fixed plate are provided with threaded holes.

[0007] The top of the operation groove is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is provided with sealing cloth, the bottom end of the sealing cloth is fixedly connected with a pull plate, and the top of the pull plate is fixedly connected with a magnetite.

[0008] Preferably, the bottom of the safety cabinet main body is fixedly connected with a supporting leg, the bottom end of the supporting leg is fixedly connected with a universal wheel, the number of the supporting legs is four, and the four supporting legs are respectively welded at the four corners of the bottom of the safety cabinet main body.

[0009] Through adoption of the above technical scheme, the universal wheel is arranged to facilitate movement of the device.

[0010] Preferably, the edge of the operation groove bottom is provided with an exhaust port, the top of the safety cabinet body near the exhaust port is fixedly connected with a batten, the number of the battens is two, the batten is a U-shaped, and the top of the safety cabinet body is provided with an air outlet pipe.

[0011] Through adoption of the above technical scheme, the exhaust port is arranged to draw the gas in the operation groove downward and discharge it outward through the air outlet pipe.

[0012] Preferably, the plug-in plate is a rectangular plate, the number of the plug-in plates is two, the two plug-in plates are respectively welded on the left and right sides of one side of the fixed plate, the plate groove is located on one side of the top of the fixed plate, the sealing gasket layer is bonded in the inside of the plate groove, and the bottom of the sealing plate is inserted into the inside of the sealing gasket layer.

[0013] Through adoption of the above technical scheme, the plug-in plate on one side of the fixed plate is inserted into the plug-in groove on one side of the bottom of the safety cabinet body to complete preliminary connection.

[0014] Preferably, the left and right sides near the bottom of the safety cabinet body are both threadedly connected with connecting screws, the connecting screws are threadedly connected in the inside of the threaded holes, and the fixed plate is fixedly connected with the safety cabinet body through the connecting screws.

[0015] Through adoption of the above technical scheme, the connecting screws on the two sides of the bottom of the safety cabinet body are rotated to be threadedly connected in the inside of the threaded holes, so that the fixed plate is connected with the safety cabinet body as a whole.

[0016] Preferably, the material of the pull plate is plastic, the shape of the pull plate is a U-shaped, the magnetite is embeddedly installed on the top of the pull plate, and the number of the magnetites is three.

[0017] Through adoption of the above technical scheme, the pull plate made of plastic has smaller mass, the magnetite is adsorbed on the top of the operation groove, and the sealing cloth on the outer surface of the rotating shaft is prevented from being pulled out.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The biological safety cabinet with good sealing performance, through the setting of the fixed plate, the plug-in plate is inserted in the slot, one side of the plug-in plate is fixedly connected with the fixed plate, one side of the top of the fixed plate is provided with a plate slot, and the plate slot is provided with a sealing pad layer; in use, the plug-in plate on one side of the fixed plate is inserted into the slot on one side of the bottom of the safety cabinet body to complete the preliminary connection, then the connecting screws on both sides of the bottom of the safety cabinet body are rotated to be screwed into the inside of the threaded holes, at this time, the fixed plate is connected with the safety cabinet body as a whole, the bottom of the sealing plate is inserted into the inside of the sealing pad layer, the sealing pad layer can seal the bottom of the sealing plate, the independently detachable fixed plate can facilitate the maintenance and replacement of the sealing pad layer inside, and the purpose of convenient use is achieved;

[0020] 2. The biological safety cabinet with good sealing performance, through the setting of the sealing cloth, the outer surface of the rotating shaft is provided with the sealing cloth, the bottom end of the sealing cloth is fixedly connected with the pull plate, the top of the pull plate is fixedly connected with the magnetite, the servo motor is not provided with a brake, when the power supply of the servo motor is turned on and the servo motor is started, the rotating shaft can recycle the sealing cloth, after recycling is completed, the power supply of the servo motor is turned off, at this time, the rotating shaft can be manually rotated, the magnetite on the top of the pull plate can be adsorbed on the top of the iron operating groove, when an accident occurs in the operating groove, harmful gas leaks, the pull plate can be pulled down, the sealing cloth on the outer surface of the rotating shaft can be pulled down, the sealing cloth can emergently isolate the internal space, a large amount of harmful gas is prevented from diffusing outward, and the sealing performance of the device is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the utility model;

[0022] Figure 2 It is a structure schematic view of the fixed plate of the utility model;

[0023] Figure 3 It is a structure schematic view of the pull plate of the utility model;

[0024] Figure 4 It is an installation structure schematic view of the pull plate of the utility model.

[0025] In the drawing: 1-safety cabinet body, 2-operating groove, 3-sealing plate, 4-plug-in plate, 5-fixed plate, 6-plate slot, 7-sealing pad layer, 8-threaded hole, 9-servo motor, 10-rotating shaft, 11-sealing cloth, 12-pull plate, 13-magnetite, 14-supporting leg, 15-exhaust port, 16-bridge plate, 17-air outlet pipe, 18-universal wheel. DETAILED DESCRIPTION

[0026] The additional aspects and advantages of the utility model will be further given in the following description combined with the drawings, some will become obvious from the following description, or be known by the practice of the utility model.

[0027] AsFigures 1-2 As shown in the figure, a good sealing biological safety cabinet, it includes safety cabinet body 1, the safety cabinet body 1 side is provided with operation groove 2, the safety cabinet body 1 is close to the operation groove 2 front side is provided with the sealing plate 3 that can be adjusted position up and down, the safety cabinet body 1 is close to the bottom side is provided with the insertion slot, the insertion slot is inserted with the plug-in board 4, the plug-in board 4 side is welded with the fixed plate 5, the fixed plate 5 top side is provided with the plate slot 6, the plate slot 6 is bonded with the sealing pad layer 7, the sealing plate 3 bottom is inserted in the inside of the plate slot 6, the left and right sides of the fixed plate 5 are provided with threaded hole 8.

[0028] Through the above setting, when using, the plug-in board 4 of the fixed plate 5 side is inserted in the insertion slot of the bottom side of the safety cabinet body 1, the preliminary connection is completed, then the connecting screw of the bottom side of the safety cabinet body 1 is rotated to be screwed in the inside of the threaded hole 8, at this time, the fixed plate 5 is connected with the safety cabinet body 1 as a whole, the bottom of the sealing plate 3 is inserted in the inside of the sealing pad layer 7, the sealing pad layer 7 can seal the bottom of the sealing plate 3, the independently detachable fixed plate 5 can facilitate the maintenance and replacement of the sealing pad layer 7 in the inside, to achieve the purpose of convenient use;

[0029] As shown in the figure, Figures 3-4 The top of the operation groove 2 is embedded with a servo motor 9, the output end of the servo motor 9 is welded with a rotating shaft 10, the outer surface of the rotating shaft 10 is wound with a sealing cloth 11, the bottom end of the sealing cloth 11 is welded with a pull plate 12, the top of the pull plate 12 is embedded with a magnetite 13.

[0030] Through the above setting, the servo motor 9 is not provided with a brake, when the power of the servo motor 9 is turned on and the servo motor 9 is started, the rotating shaft 10 can recycle the sealing cloth 11, after recycling, the power of the servo motor 9 is turned off, at this time, the rotating shaft 10 can be manually rotated, the magnetite 13 on the top of the pull plate 12 can be attracted to the top of the iron operation groove 2, when an accident occurs in the operation groove 2, harmful gas leaks, the pull plate 12 can be pulled down, the sealing cloth 11 on the outer surface of the rotating shaft 10 can be pulled down, the sealing cloth 11 can emergency isolate the internal space, avoid a large amount of harmful gas from spreading outside, effectively improve the sealing property of the device;

[0031] As a preferred technical scheme of the utility model, the bottom of the safety cabinet body 1 is fixedly connected with supporting legs 14, the bottom end of the supporting leg 14 is fixedly connected with universal wheels 18, the number of the supporting leg 14 is four, the four supporting legs 14 are respectively welded at the four corners of the bottom of the safety cabinet body 1.

[0032] As a preferred technical scheme of the utility model, the edge of the bottom of the operation groove 2 is provided with an air outlet 15, the top of the safety cabinet body 1 close to the air outlet 15 is fixedly connected with a batten 16, the number of the batten 16 is two, the batten 16 is a shape, the top of the safety cabinet body 1 is provided with an air outlet pipe 17.

[0033] As a preferred technical scheme of the utility model, the plug-in plate 4 is a rectangular plate, the number of the plug-in plate 4 is two, the two plug-in plates 4 are welded on the left and right sides of one side of the fixed plate 5, the plate groove 6 is located on one side of the top of the fixed plate 5, the sealing gasket layer 7 is bonded inside the plate groove 6, and the bottom of the sealing plate 3 is inserted into the inside of the sealing gasket layer 7.

[0034] As a preferred technical scheme of the utility model, the left and right sides close to the bottom of the safety cabinet main body 1 are both screw-connected with connecting screws, the connecting screws are screw-connected inside the threaded holes 8, and the fixed plate 5 is fixedly connected with the safety cabinet main body 1 through the connecting screws.

[0035] As a preferred technical scheme of the utility model, the material of the pull plate 12 is plastic, the shape of the pull plate 12 is a U-shaped, and the magnetite 13 is embeddedly installed on the top of the pull plate 12.

[0036] The working process of the utility model is as follows:

[0037] S1, the plug-in plate 4 on one side of the fixed plate 5 is inserted into the insertion slot on one side of the bottom of the safety cabinet main body 1, the preliminary connection is completed, the connecting screws on both sides of the bottom of the safety cabinet main body 1 are rotated to be screw-connected inside the threaded holes 8, and at this time, the fixed plate 5 is connected with the safety cabinet main body 1 as a whole.

[0038] S2, the bottom of the sealing plate 3 is inserted into the inside of the sealing gasket layer 7, and the sealing gasket layer 7 can seal the bottom of the sealing plate 3.

[0039] S3, the servo motor 9 is not provided with a brake, when the power supply of the servo motor 9 is turned on and the servo motor 9 is started, the rotating shaft 10 can recycle the sealing cloth 11, the power supply of the servo motor 9 is turned off after recycling is completed, at this time, the rotating shaft 10 can be manually rotated, and the magnetite 13 on the top of the pull plate 12 can be adsorbed on the top of the iron operating groove 2.

[0040] S4, when accidents occur in the operating groove 2, harmful gas leaks, the pull plate 12 can be pulled down, the sealing cloth 11 on the outer surface of the rotating shaft 10 is pulled down, the sealing cloth 11 can urgently isolate the internal space, and a large amount of harmful gas is prevented from diffusing outward.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A biological safety cabinet with good sealing, characterized in that: Including the safe cabinet body (1), one side of the safe cabinet body (1) is provided with an operation slot (2), and the safe cabinet body (1) is provided with a sealing plate (3) close to the front side of the operation slot (2). The safe cabinet body (1) is provided with a slot on one side close to the bottom, the plug-in plate (4) is inserted into the slot, one side of the plug-in plate (4) is fixedly connected with the fixed plate (5), the fixed plate (5) is provided with a plate slot (6) on one side of the top, and the plate slot (6) is provided with a sealing pad layer (7). The bottom of the sealing plate (3) is inserted into the inside of the plate slot (6), and the left and right sides of the fixed plate (5) are provided with threaded holes (8). The top of the operation slot (2) is fixedly connected with a servo motor (9), the output end of the servo motor (9) is fixedly connected with a rotating shaft (10), the outer surface of the rotating shaft (10) is provided with a sealing cloth (11), and the bottom end of the sealing cloth (11) is fixedly connected with a pull plate (12). The top of the pull plate (12) is fixedly connected with a magnetite (13).

2. The biological safety cabinet with good sealing according to claim 1, characterized in that: The bottom of the safe cabinet body (1) is fixedly connected with a supporting leg (14), the bottom end of the supporting leg (14) is fixedly connected with a universal wheel (18), the number of the supporting leg (14) is four, and the four supporting legs (14) are respectively welded at the four corners of the bottom of the safe cabinet body (1).

3. The biological safety cabinet with good sealing according to claim 1, characterized in that: The edge of the bottom of the operation slot (2) is provided with an air outlet (15), the top of the safe cabinet body (1) close to the air outlet (15) is fixedly connected with a clamping plate (16), the number of the clamping plate (16) is two, the clamping plate (16) is a shape, and the top of the safe cabinet body (1) is provided with an air outlet pipe (17).

4. The biological safety cabinet with good sealing according to claim 1, characterized in that: The plug-in plate (4) is a rectangular plate, the number of the plug-in plate (4) is two, the left and right sides of one side of the fixed plate (5) are respectively welded with the two plug-in plates (4), the plate slot (6) is located on one side of the top of the fixed plate (5), and the sealing pad layer (7) is attached to the inside of the plate slot (6). The bottom of the sealing plate (3) is inserted into the inside of the sealing pad layer (7).

5. The biological safety cabinet with good sealing according to claim 1, characterized in that: The left and right sides of the safe cabinet body (1) close to the bottom are threadedly connected with connecting screws, the connecting screws are threadedly connected into the threaded holes (8), and the fixed plate (5) is fixedly connected with the safe cabinet body (1) through the connecting screws.

6. The biological safety cabinet with good sealing according to claim 1, characterized in that: The material of the pull plate (12) is plastic, the shape of the pull plate (12) is a shape, the magnetite (13) is embeddedly installed on the top of the pull plate (12), and the number of the magnetite (13) is three.

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