Multifunctional fuming cupboard

Abstract

The utility model discloses a multifunctional fuming cupboard, and relates to the technical field of fuming cupboards. The multifunctional fuming cupboard comprises a fuming cupboard body, a ventilation channel formed in the fuming cupboard body, a variable air volume valve arranged on the top face of the fuming cupboard body, an intelligent visual area sensor arranged on the top of one side of the fuming cupboard body and an anti-explosion glass window arranged on one side of the fuming cupboard body. According to the device, a protective film is laid on the table top of the fuming cupboard, so that corrosive liquid cannot make direct contact with the table top, the service life of the table top of the fuming cupboard is prolonged, the two ends of the protective film can be wound and supported through the arranged first rod body and second rod body, and then the protective film is conveniently replaced; and meanwhile, a pressing frame and a threaded rod are combined for use, so that the protective film can be stably laid on the table top, the situation that the protective film is curled is avoided, and the table top can be effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fume hood technical field, concretely is a multifunctional fume hood. BACKGROUND

[0002] The fume hood is a kind of laboratory furniture, mainly as exhaust end equipment, for local exhaust, protect scientific researchers and laboratory environment, especially in chemical experiment, can exclude harmful gas, odor, humidity and flammable, explosive, corrosive substance, to guarantee the safety of user, prevent the diffusion of pollutant in experiment to laboratory.

[0003] When chemical experiment is carried out on the table top of fume hood, for example, heating, acid chasing, dilution, liquid preparation and other operations, in the process of carrying out these operations, liquid and sample etc. It is inevitable that it is spilled on the table top, for the corrosive liquid, for example, strong acid, sulfuric acid and hydrochloric acid etc. Spill on the table top of ceramic material, strong acid will react with calcium carbonate etc. Component in marble, cause the table top to appear pit, rough uneven phenomenon, seriously affect the flatness and aesthetic degree of table top, thereby leading to the structural strength reduction of fume hood table top, affect the service life of fume hood, in view of the technical deficiency of prior art, we propose a kind of multifunctional fume hood to solve the above problems. SUMMARY

[0004] In view of the technical deficiency of prior art, the utility model provides a kind of multifunctional fume hood, solve when the corrosive liquid is spilled on the table top of fume hood, will lead to the table top to appear pit, rough uneven phenomenon, seriously affect the flatness and aesthetic degree of table top, thereby leading to the structural strength reduction of fume hood table top, affect the service life of fume hood problem.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of multifunctional fume hood, including fume hood main body, ventilation passage being opened in fume hood main body interior, variable air volume valve being arranged at the top surface of fume hood main body, intelligent vision area sensor being arranged at the top of one side of fume hood main body and explosion-proof glass window being arranged at one side of fume hood main body, the inner bottom surface of fume hood main body is provided with protection mechanism, the protection mechanism includes:

[0006] First box body and second box body are arranged at the inner bottom surface of fume hood main body, and the inner bottom surface of fume hood main body is paved with protective film;

[0007] First rod body and second rod body are rotatably arranged in the interior of first box body and second box body respectively, and first rod body and second rod body are used to support the two ends of protective film;

[0008] The positioning assembly is arranged in the interior of the fume hood body, and comprises a pressing frame for fixing the laying position of the protective film and a threaded rod for controlling the position change of the pressing frame.

[0009] Preferably, the positioning assembly further comprises a bracket fixedly arranged on the inner wall of the fume hood body and a threaded plate fixedly connected with one side of the pressing frame, one end of the threaded rod is rotationally arranged in the interior of the bracket, and the threaded plate is threadedly sleeved on the outer wall of one end of the threaded rod.

[0010] Preferably, the inner wall of the bracket is fixedly provided with a positioning rod, and one end of the threaded plate is slidingly arranged on the outer wall of the positioning rod.

[0011] Preferably, one side of the second box body is rotationally provided with a box cover, and both ends of the second rod body are fixedly provided with auxiliary gears.

[0012] Preferably, the interior of the box cover is rotationally provided with a dial piece gear for engaging with the auxiliary gears, and one end of the dial piece gear extends to the exterior of the box cover.

[0013] Preferably, one side of the second box body is provided with a clamping block for clamping the box cover and the second box body.

[0014] Preferably, one side of the fume hood body close to the first box body is provided with an inlet, and one side of the inlet is rotationally provided with a sealing cover.

[0015] The utility model discloses a multifunctional fume hood, which has the following beneficial effects: the multifunctional fume hood is provided with a protective film on the tabletop of the fume hood, so that the corrosive liquid does not directly contact the tabletop, prolonging the service life of the tabletop of the fume hood. The first rod body and the second rod body are arranged to support and wind the two ends of the protective film, facilitating the replacement of the protective film. In combination with the pressing frame and the threaded rod, the protective film can be stably laid on the tabletop, avoiding the edge curling of the protective film and effectively protecting the tabletop. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2This is a schematic diagram of the ventilation channel path structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the protective film and the pressure frame connection structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the protective film and the connection structure of the two sets of rods of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure of the pressure frame, bracket, and threaded rod of this utility model;

[0022] Figure 6 This is a plan view of the connection structure of the paddle gear and auxiliary gear of this utility model.

[0023] In the diagram: 1. Fume hood body; 11. Explosion-proof glass window; 2. Ventilation duct; 3. Variable air volume valve; 4. Intelligent vision area sensor; 5. Protective mechanism; 51. First box; 511. First rod; 512. Entrance; 52. Second box; 521. Second rod; 53. Protective film; 54. Box cover; 541. Locking block; 55. Positioning component; 551. Pressure frame; 552. Bracket; 553. Threaded rod; 554. Threaded plate; 555. Positioning rod; 6. Auxiliary gear; 61. Paddle gear. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] This application provides a multifunctional fume hood that solves the problem that when corrosive liquids are spilled on the fume hood's countertop, the countertop will develop pits, roughness, and unevenness, severely affecting the flatness and aesthetics of the countertop, thereby reducing the structural strength of the fume hood countertop and affecting its service life. It achieves protection for the fume hood countertop and convenient cleaning of the fume hood countertop.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] This utility model discloses a multifunctional fume hood.

[0028] According to the appendix Figures 1-6As shown, including fume hood body 1, fume hood body 1 inside the ventilation channel 2, set in fume hood body 1 top variable air volume valve 3, set in fume hood body 1 one side of the top of the intelligent visual area sensor 4 and set in fume hood body 1 one side of the explosion-proof glass window 11, fume hood body 1, ventilation channel 2, variable air volume valve 3, intelligent visual area sensor 4 and explosion-proof glass window 11 and other components group fume hood, fume hood material includes all steel, aluminum profiles, stainless steel, PP structure, etc., the table material has solid core physical and chemical plate, stainless steel plate, PP, ceramic, etc., fume hood is divided into upper and lower structure, the top can be installed fan, the upper cabinet contains flow guide plate, touch switch, socket, etc., explosion-proof glass window 11 is tempered or laminated glass, which can be left or right or up and down to facilitate operation, and through the setting of intelligent visual area sensor 4, when the experimenter leaves the fume hood, according to the setting, explosion-proof glass window 11 can be automatically lowered to standby mode, in addition, it can also be manually opened one key energy saving mode, the function is various, specifically, when chemical experiment is carried out on the table surface of fume hood body 1, variable air volume valve 3 provided on the top surface of fume hood body 1 is opened, so that the airflow in fume hood body 1 flows along the path shown in the figure, so that the harmful gas enters the exhaust pipe connected with variable air volume valve 3 along ventilation channel 2, and then the harmful gas is transported through the exhaust pipe. Figure 2 As shown, the harmful gas flows along the path shown in the figure, so that the harmful gas enters the exhaust pipe connected with variable air volume valve 3 along ventilation channel 2, and then the harmful gas is transported through the exhaust pipe.

[0029] Referring to the accompanying drawings Figures 3-5 The inner bottom surface of fume hood body 1 is provided with a protection mechanism 5, through the setting of protection mechanism 5, when chemical experiment is carried out on the inner bottom surface of fume hood body 1, that is, on the table surface, the table surface is protected, the service life of fume hood body 1 is prolonged, and the table surface is convenient to clean, the protection mechanism 5 includes first box body 51 and second box body 52, the first box body 51 and the second box body 52 are arranged on the inner bottom surface of fume hood body 1, and are respectively located at both ends of the table surface, the inner bottom surface of fume hood body 1 is paved with protection film 53, the material of protection film 53 includes polytetrafluoroethylene film and polyvinylidene fluoride film, first rod body 511 and second rod body 521 are respectively rotatably arranged in first box body 51 and second box body 52, first rod body 511 and second rod body 521 are used for winding and supporting both ends of protection film 53, first box body 51 is used for winding and supporting the unused part of protection film 53, referring to the accompanying drawings Figure 3, the side of the fume hood body 1 close to the first box body 51 is provided with an inlet 512, and a sealing cover is rotatably arranged on the side of the inlet 512. Through the inlet 512, the unused film roll can be conveniently fed into the first box body 51. The second box body 52 is used for winding and supporting the used part of the protective film 53. A box cover 54 is rotatably arranged on one side of the second box body 52. A clamping block 541 is arranged on one side of the second box body 52 for clamping the box cover 54 and the second box body 52. When the box cover 54 is opened, the inside of the second box body 52 is in an open state, and the used film roll can be taken out through the open part of the second box body 52.

[0030] Referring to the accompanying drawings Figure 3 and the accompanying drawings Figure 5 , the positioning assembly 55 is arranged in the fume hood body 1. Through the positioning assembly 55, the edge of the protective film 53 on the table top can be pressed, so that the protective film 53 can stably cover the table top of the fume hood body 1. The positioning assembly 55 includes a pressing frame 551 for fixing the laying position of the protective film 53 and a threaded rod 553 for controlling the position change of the pressing frame 551. The positioning assembly 55 further includes a bracket 552 fixedly arranged on the inner wall of the fume hood body 1 and a threaded plate 554 fixedly connected to one side of the pressing frame 551. One end of the threaded rod 553 is rotatably arranged in the inner wall of the bracket 552, and the threaded plate 554 is threadedly connected to the outer wall of one end of the threaded rod 553. The inner wall of the bracket 552 is fixedly provided with a positioning rod 555, and one end of the threaded plate 554 is slidably arranged on the outer wall of the positioning rod 555. By rotating the second rod body 521, the protective film 53 moves from the first box body 51 to the direction close to the second box body 52. During this process, one end of the protective film 53 moves along the table top of the fume hood body 1, so that the protective film 53 is laid on the table top of the fume hood body 1. When the laying of the protective film 53 is completed, the threaded rod 553 is rotated, so that the pressing frame 551 moves downward along the threaded rod 553 and the positioning rod 555 under the threaded connection between the threaded rod 553 and the threaded plate 554, until the bottom surface of the pressing frame 551 is in contact with the top surface of the protective film 53, thereby fixing the protective film 53 on the table top.

[0031] Referring to the accompanying drawings Figure 4 and the accompanying drawings Figure 6 , the two ends of the second rod body 521 are fixedly provided with auxiliary gears 6. A dial gear 61 for engaging with the auxiliary gears 6 is rotatably arranged in the inside of the box cover 54. One end of the dial gear 61 extends to the outside of the box cover 54. Through the auxiliary gears 6 and the dial gear 61, the second rod body 521 can be conveniently rotated, thereby facilitating the winding of the used protective film 53 on the outer wall of the second rod body 521.

[0032] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A multifunctional fume hood, comprising a fume hood body (1), a ventilation channel (2) opened in the inside of the fume hood body (1), a variable air volume valve (3) arranged on the top surface of the fume hood body (1), an intelligent visual area sensor (4) arranged on the top of one side of the fume hood body (1), and an explosion-proof glass window (11) arranged on one side of the fume hood body (1), characterized in that, The inner bottom surface of the fume hood body (1) is provided with a protection mechanism (5), the protection mechanism (5) comprises: A first box body (51) and a second box body (52) are arranged on the inner bottom surface of the fume hood body (1), and a protection film (53) is arranged on the inner bottom surface of the fume hood body (1); A first rod body (511) and a second rod body (521) are rotatably arranged in the first box body (51) and the second box body (52) respectively, and the first rod body (511) and the second rod body (521) are used for supporting both ends of the protection film (53); A positioning assembly (55) is arranged in the fume hood body (1), the positioning assembly (55) comprises a pressing frame (551) for fixing the laying position of the protection film (53) and a threaded rod (553) for controlling the position change of the pressing frame (551).

2. The multifunctional fume hood according to claim 1, wherein: The positioning assembly (55) further comprises a bracket (552) fixedly arranged on the inner wall of the fume hood body (1) and a threaded plate (554) fixedly connected with one side of the pressing frame (551), one end of the threaded rod (553) is rotatably arranged in the inner wall of the bracket (552), and the threaded plate (554) is threadedly connected with one end of the threaded rod (553).

3. The multifunctional fume hood according to claim 2, wherein: The inner wall of the bracket (552) is fixedly provided with a positioning rod (555), and one end of the threaded plate (554) is slidably arranged on the outer wall of the positioning rod (555).

4. The multifunctional fume hood according to claim 1, wherein: One side of the second box body (52) is rotatably provided with a box cover (54), and both ends of the second rod body (521) are fixedly provided with auxiliary gears (6).

5. The multifunctional fume hood according to claim 4, wherein: The inner wall of the second box body (52) is rotatably provided with a box cover (54), and both ends of the second rod body (521) are fixedly provided with auxiliary gears (6).

6. A multifunctional fume hood according to claim 5, characterized in that: The inner wall of the second box body (52) is rotatably provided with a box cover (54), and both ends of the second rod body (521) are fixedly provided with auxiliary gears (6).

7. The multifunctional fume hood according to claim 1, wherein: The inner wall of the second box body (52) is rotatably provided with a box cover (54), and both ends of the second rod body (521) are fixedly provided with auxiliary gears (6). The inner wall of the second box body (52) is rotatably provided with a box cover (54), and both ends of the second rod body (521) are fixedly provided with auxiliary gears (6). The inner wall of the second box body (52) is rotatably provided with a box cover (54), and both ends of the second rod body (521) are fixedly provided with auxiliary gears (6).

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