Sterilization structure for ventilation cabinet

Abstract

The sterilization structure comprises a ventilation cabinet body, a sterilization mechanism is arranged in the ventilation cabinet body, and a transmission mechanism is arranged on the surface of the sterilization mechanism; the sterilization mechanism comprises a top plate, a first sterilization lamp is fixed to the top of the inner wall of the ventilation cabinet body, a plurality of reciprocating lead screws are arranged below the top plate, the surfaces of the reciprocating lead screws are in threaded connection with movable sleeves, movable frames are fixed to the surfaces of the movable sleeves, and a first mounting plate, a mounting shell and a second sterilization lamp are fixed to the surfaces of the movable frames. A spring is fixed to the surface of the first mounting plate, a connecting shell is fixed to the surface of the spring, cleaning sponge is slidably connected to the inner wall of the connecting shell, a sliding block is slidably connected to the surface of the mounting shell, and a brush plate is fixed to the surface of the sliding block. The ventilation cabinet has the advantage that the inner wall of the ventilation cabinet can be sterilized more comprehensively, and the problems that an existing ventilation cabinet is poor in sterilization effect and difficult to meet the cleaning requirement are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to a sterilization structure for fume hoods. Background Art

[0002] Fume hoods play a vital role in laboratories. They are mainly used to exhaust harmful chemicals generated during the experiment. Since fume hoods are often exposed to a variety of harmful substances, microorganisms, pathogens or other biological contaminants may accumulate inside them. Therefore, the purpose of sterilizing the fume hoods is to prevent cross contamination, maintain the reliability of experimental conditions, and ensure the overall biosafety of the laboratory.

[0003] Currently, fume hoods are sterilized by internally installed ultraviolet germicidal lamps. When the experiment is over or no one is working, the ultraviolet lamp can be turned on to disinfect the air and surface inside the cabinet. However, due to the fixed position of the germicidal lamp, blind spots are easily formed when ultraviolet rays are irradiated, and the sterilization effect is poor in areas far away from the germicidal lamp, which makes it difficult to meet usage requirements. Utility Model Content

[0004] The utility model aims to provide a sterilization structure for a fume hood, which has the advantage of being able to sterilize the inner wall of the fume hood more comprehensively, thereby solving the problem that the current fume hood has poor sterilization effect and is difficult to meet cleaning requirements.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sterilization structure for a fume hood, comprising a fume hood body, a sterilization mechanism is arranged inside the fume hood body, and a transmission mechanism is arranged on the surface of the sterilization mechanism;

[0006] The sterilization mechanism includes a top plate, a first sterilization lamp is fixed on the top of the inner wall of the fume hood body, a plurality of reciprocating screws are arranged below the top plate, a movable sleeve is threadedly connected to the surface of the reciprocating screw, a movable frame is fixed to the surface of the movable sleeve, a first mounting plate, a mounting shell and a second sterilization lamp are fixed to the surface of the movable frame, a spring is fixed to the surface of the first mounting plate, a connecting shell is fixed to the surface of the spring, a cleaning sponge is slidably connected to the inner wall of the connecting shell, a slider is slidably connected to the surface of the mounting shell, a brush plate is fixed to the surface of the slider, a connecting plate is fixed to the surface of the movable frame, and a third sterilization lamp is fixed to the surface of the connecting plate.

[0007] As a preferred sterilization structure for a fume hood of the utility model, the two motors are fixed to the bottom of the top plate, the motor output shaft passes through the top plate and is fixed with a rotating shaft, a first gear is fixed to the surface of the rotating shaft, a second gear is meshed with the surface of the first gear, the second gear is fixed above the surface of the rear reciprocating screw rod, a driving wheel is fixed above the surface of the rear reciprocating screw rod, the surface of the driving wheel is connected to a driven wheel through a belt drive, and the driven wheel is fixed above the surface of the front reciprocating screw rod.

[0008] As a preferred sterilization structure for a fume hood of the utility model, a ventilation shell is fixed to the top of the inner wall of the fume hood body, a fan is fixed to the inner wall of the ventilation shell, and a filter is fixed above the inner wall of the ventilation shell.

[0009] As a preferred sterilization structure for a fume hood of the utility model, a liquid adding shell is fixed on the top of the connecting shell, and a plurality of liquid adding holes are opened on the surface of the connecting shell.

[0010] As a preferred sterilization structure for a fume hood of the utility model, a plurality of sliding rods are fixed to the inner wall of the fume hood body, and sliding sleeves are slidably connected to the surface of the sliding rods. The sliding sleeves on the left and right sides are fixedly connected to the surface of the movable frame, and the sliding sleeve on the rear side is fixedly connected to the surface of the third sterilization lamp.

[0011] As a preferred sterilization structure for a fume hood of the utility model, a telescopic rod is fixed to the surface of the first mounting plate, and the surface of the telescopic rod is fixedly connected to the surface of the connecting shell.

[0012] As a preferred sterilization structure for a fume hood of the utility model, a controller is fixed on the surface of the fume hood body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model arranges the sterilization mechanism, and the ultraviolet light generated by the first sterilization lamp can directly irradiate the bottom of the inner wall of the fume hood body, so that the bottom of the inner wall of the fume hood body can be sterilized normally. When the transmission mechanism is started, the multiple reciprocating screws will rotate at the same time, and the movable sleeve can reciprocate up and down on the surface of the reciprocating screw, so that the movable frame can carry the second sterilization lamp and the third sterilization lamp to move together, and in this way, it can ensure that the ultraviolet light irradiates every corner of the inner wall of the fume hood body, solves the problem of dead angles that may exist in fixed-position irradiation, and improves the sterilization efficiency and coverage. At the same time, the cleaning sponge and the brush plate can move together with the movable frame, and the cleaning sponge can automatically wipe and clean the inner wall of the fume hood body after being dipped in the sterilization cleaning liquid, and the brush plate can be used to brush the inner wall of the fume hood body, so that the inner wall of the fume hood body can obtain a better cleaning effect, eliminating the tediousness of manual regular deep cleaning, and improving the sterilization effect of the fume hood body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] Figure 3 It is a partial cross-sectional structural schematic diagram of the sterilization mechanism in the utility model;

[0018] Figure 4 It is a partial cross-sectional structural schematic diagram of the sterilization mechanism in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the transmission mechanism in the utility model.

[0020] In the figure: 1. fume hood body; 2. sterilization mechanism; 201. top plate; 202. first germicidal lamp; 203. reciprocating screw rod; 204. movable sleeve; 205. movable frame; 206. first mounting plate; 207. spring; 208. connecting shell; 209. cleaning sponge; 210. second germicidal lamp; 211. mounting shell; 212. brush plate; 213. slider; 214. liquid adding shell; 215. connecting plate; 216. third germicidal lamp; 217. ventilation shell; 218. fan; 219. filter; 220. telescopic rod; 221. slide rod; 222. sleeve; 3. transmission mechanism; 301. motor; 302. rotating shaft; 303. first gear; 304. second gear; 305. driving wheel; 306. driven wheel; 4. controller. DETAILED DESCRIPTION

[0021] See also Figure 1-5 A sterilization structure for a fume hood includes a fume hood body 1, a sterilization mechanism 2 is arranged inside the fume hood body 1, and a transmission mechanism 3 is arranged on the surface of the sterilization mechanism 2;

[0022] The sterilization mechanism 2 provides a better sterilization effect inside the fume hood body 1 , and the transmission mechanism 3 is used to transmit power to the sterilization mechanism 2 .

[0023] The sterilization mechanism 2 includes a top plate 201, which is fixed above the inner wall of the fume hood body 1. A first sterilization lamp 202 is fixed on the top of the inner wall of the fume hood body 1. A plurality of reciprocating screw rods 203 are arranged below the top plate 201. The bottom of the reciprocating screw rods 203 is rotatably connected to the bottom of the inner wall of the fume hood body 1. The top of the reciprocating screw rods 203 is rotatably connected to the top of the inner wall of the fume hood body 1. The surface of the rear reciprocating screw rod 203 passes through the top plate 201. The surface of the reciprocating screw rod 203 is threadedly connected with a movable sleeve 204. The surface of the movable sleeve 204 is fixed. A movable frame 205 is provided, a first mounting plate 206, a mounting shell 211 and a second germicidal lamp 210 are fixed on the surface of the movable frame 205, a spring 207 is fixed on the surface of the first mounting plate 206, a connecting shell 208 is fixed on the surface of the spring 207, a cleaning sponge 209 is slidably connected to the inner wall of the connecting shell 208, a slider 213 is slidably connected to the surface of the mounting shell 211, a brush plate 212 is fixed on the surface of the slider 213, a connecting plate 215 is fixed on the surface of the movable frame 205, and a third germicidal lamp 216 is fixed on the surface of the connecting plate 215;

[0024] The ultraviolet light generated by the first germicidal lamp 202 can directly irradiate the bottom of the inner wall of the fume hood body 1, so that the bottom of the inner wall of the fume hood body 1 can be sterilized normally. When the transmission mechanism 3 is started, the multiple reciprocating screws 203 will rotate at the same time, and the movable sleeve 204 can reciprocate up and down on the surface of the reciprocating screw 203, so that the movable frame 205 can carry the second germicidal lamp 210 and the third germicidal lamp 216 to move together, and this can ensure that the ultraviolet light irradiates every corner of the inner wall of the fume hood body 1, solve the problem of dead angles that may exist in fixed position irradiation, and improve the sterilization efficiency and coverage. At the same time, the cleaning sponge 209 and the brush plate 212 can move together with the movable frame 205. The cleaning sponge 209 can automatically irradiate the ventilation after being dipped in the sterilizing cleaning liquid. The inner wall of the cabinet body 1 is wiped and cleaned, and the brush plate 212 is used to brush the inner wall of the fume hood body 1, so that the inner wall of the fume hood body 1 can be better cleaned, eliminating the tediousness of manual deep cleaning on a regular basis, and improving the sterilization effect of the fume hood body 1. When the cleaning sponge 209 needs to be taken out, the spring 207 can be compressed through the movable connecting shell 208, so that the cleaning sponge 209 has enough space to be taken out from the inner wall of the fume hood body 1, thereby completing the replacement of the cleaning sponge 209. When the brush plate 212 needs to be replaced, the slider 213 can be directly detached from the mounting shell 211 by sliding the brush plate 212, thereby removing the brush plate 212, making it more convenient to clean and replace the brush plate 212.

[0025] Further, the transmission mechanism 3 includes two motors 301, the motor 301 is fixed to the bottom of the top plate 201, the output shaft of the motor 301 passes through the top plate 201 and is fixed with a rotating shaft 302, a first gear 303 is fixed on the surface of the rotating shaft 302, a second gear 304 is meshed on the surface of the first gear 303, the second gear 304 is fixed above the surface of the rear reciprocating screw 203, a driving wheel 305 is fixed above the surface of the rear reciprocating screw 203, a driven wheel 306 is connected to the surface of the driving wheel 305 through a belt drive, and the driven wheel 306 is fixed above the surface of the front reciprocating screw 203;

[0026] When the motor 301 is started, it will drive the first gear 303 to rotate through the rotating shaft 302, so that the first gear 303 drives the rear reciprocating screw 203 to rotate through the second gear 304. When the rear reciprocating screw 203 rotates, the driving wheel 305 will drive the driven wheel 306 to rotate through the belt, so that the front reciprocating screw 203 can also rotate at the same time, and then the movable sleeve 204 can move on the surface of the reciprocating screw 203 at the same time.

[0027] Furthermore, a ventilation shell 217 is fixed to the top of the inner wall of the fume hood body 1, a fan 218 is fixed to the inner wall of the ventilation shell 217, a filter 219 is fixed above the inner wall of the ventilation shell 217, the filter 219 is a HEPA high efficiency filter, and a ventilation port for use with the ventilation shell 217 is opened on the top of the inner wall of the fume hood body 1;

[0028] When started, the fan 218 can draw air from the fume hood body 1, filter the air through the filter 219, and then discharge it through the top of the filter 219, so that the filter 219 can filter out most of the bacteria, viruses and other tiny biological particles in the air, ensuring that the discharged air meets the sterility standard, thereby improving the sterilization effect.

[0029] Furthermore, a liquid adding shell 214 is fixed on the top of the connecting shell 208, and a plurality of liquid adding holes are opened on the surface of the connecting shell 208;

[0030] After the sterilizing cleaning liquid is poured into the liquid adding shell 214 , the sterilizing cleaning liquid can drip onto the surface of the cleaning sponge 209 through the liquid adding hole, so that it is more convenient to dip the surface of the cleaning sponge 209 into the sterilizing cleaning liquid.

[0031] Furthermore, a plurality of slide bars 221 are fixed to the inner wall of the fume hood body 1, and a slide sleeve 222 is slidably connected to the surface of the slide bar 221, and the slide sleeves 222 on the left and right sides are fixedly connected to the surface of the movable frame 205, and the rear slide sleeve 222 is fixedly connected to the surface of the third germicidal lamp 216;

[0032] When the movable frame 205 and the third germicidal lamp 216 move, the sliding sleeve 222 will slide on the surface of the sliding rod 221, so that the movable frame 205 and the third germicidal lamp 216 can both obtain a guiding effect, thereby improving their stability when moving.

[0033] Furthermore, a telescopic rod 220 is fixed to the surface of the first mounting plate 206, and the surface of the telescopic rod 220 is fixedly connected to the surface of the connecting shell 208;

[0034] The telescopic rod 220 can provide additional support for the connecting shell 208 to prevent the spring 207 from being bent up and down due to excessive force.

[0035] Further, a controller 4 is fixed on the surface of the fume hood body 1, and the controller 4 is electrically connected to the motor 301, the fan 218, the first germicidal lamp 202, the second germicidal lamp 210 and the third germicidal lamp 216;

[0036] Enables the controller 4 to operate multiple devices.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sterilization structure for a fume hood, comprising a fume hood body (1), characterized in that: A sterilization mechanism (2) is provided inside the fume hood body (1), and a transmission mechanism (3) is provided on the surface of the sterilization mechanism (2); The sterilization mechanism (2) comprises a top plate (201), a first sterilization lamp (202) is fixed to the top of the inner wall of the fume hood body (1), and a plurality of reciprocating screws (203) are arranged below the top plate (201). A movable sleeve (204) is threadedly connected to the surface of the reciprocating screw (203), a movable frame (205) is fixed to the surface of the movable sleeve (204), and a first mounting plate (206), a mounting shell (211) and a second sterilization lamp (210) are fixed to the surface of the movable frame (205). A spring (207) is fixed on the surface of the first mounting plate (206), a connecting shell (208) is fixed on the surface of the spring (207), a cleaning sponge (209) is slidably connected to the inner wall of the connecting shell (208), a slider (213) is slidably connected to the surface of the mounting shell (211), a brush plate (212) is fixed on the surface of the slider (213), a connecting plate (215) is fixed on the surface of the movable frame (205), and a third germicidal lamp (216) is fixed on the surface of the connecting plate (215).

2. A sterilization structure for a fume hood according to claim 1, characterized in that: The transmission mechanism (3) comprises two motors (301), wherein the motors (301) are fixed to the bottom of the top plate (201), the output shaft of the motor (301) passes through the top plate (201) and is fixed with a rotating shaft (302), a first gear (303) is fixed to the surface of the rotating shaft (302), a second gear (304) is meshed with the surface of the first gear (303), the second gear (304) is fixed above the surface of the rear reciprocating screw (203), a driving wheel (305) is fixed above the surface of the rear reciprocating screw (203), the surface of the driving wheel (305) is connected to a driven wheel (306) via a belt drive, and the driven wheel (306) is fixed above the surface of the front reciprocating screw (203).

3. A sterilization structure for a fume hood according to claim 1, characterized in that: A ventilation shell (217) is fixed to the top of the inner wall of the fume hood body (1), a fan (218) is fixed to the inner wall of the ventilation shell (217), and a filter (219) is fixed above the inner wall of the ventilation shell (217).

4. A sterilization structure for a fume hood according to claim 1, characterized in that: A liquid adding shell (214) is fixed on the top of the connecting shell (208), and a plurality of liquid adding holes are provided on the surface of the connecting shell (208).

5. The sterilization structure for a fume hood according to claim 1, characterized in that: A plurality of sliding rods (221) are fixed to the inner wall of the fume hood body (1); a sliding sleeve (222) is slidably connected to the surface of the sliding rod (221); the sliding sleeves (222) on the left and right sides are fixedly connected to the surface of the movable frame (205); and the sliding sleeve (222) on the rear side is fixedly connected to the surface of the third germicidal lamp (216).

6. A sterilization structure for a fume hood according to claim 1, characterized in that: A telescopic rod (220) is fixed to the surface of the first mounting plate (206), and the surface of the telescopic rod (220) is fixedly connected to the surface of the connecting shell (208).

7. A sterilization structure for a fume hood according to claim 1, characterized in that: A controller (4) is fixed on the surface of the fume hood body (1).

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