Ventilation cabinet

Abstract

The utility model relates to the technical field of experimental equipment, in particular to a ventilation cabinet which comprises a cabinet body, a visible window is arranged on the front face of the cabinet body, a first window panel and a second window panel are arranged on the side of the visible window, the first window panel is hinged to the cabinet body, an air supporting rod is hinged between the first window panel and the cabinet body, and the second window panel is hinged to the cabinet body. The second window panel is arranged at the lower end of the first window panel, and a hinge is connected between the first window panel and the second window panel. Free opening and closing of the first window panel and adjustment of the opening and closing angle are achieved, overturning adjustment of the second window panel is achieved, the overall structure is simple, a balance weight structure of a traditional window is omitted, adjustment is convenient, flexibility is high, frequent adjustment of the window is avoided, the fault rate of the window is reduced, and transportation and installation convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental equipment technical field especially, relates to a fume hood. BACKGROUND

[0002] Ventilation cabinet is one of the main supplies in factory research and development department, scientific research unit and school laboratory, its demand is very huge, application is very extensive, the ventilation cabinet on the market at present mostly front side is up and down sliding window structure, rear side needs to have counterweight, this structure leads to ventilation cabinet structure complex, overall weight is bigger, cost is high, generally needs overall transportation, transportation cost is high.

[0003] Prior art discloses the ventilation cabinet of application number 201610523022.5, the disclosed technical scheme is ventilation cabinet, including left side plate, right side plate, exhaust fan, baffle, storage box, workbench, glass door and deflector, left side plate and right side plate are installed at the both ends of workbench respectively, baffle is installed between left side plate and right side plate, and the both sides of baffle are equipped with glass door and deflector respectively, the suction end of exhaust fan is inserted into chamber, and the exhaust end of exhaust fan is stretched out outside chamber, and storage box is fixedly installed at the bottom of workbench. The technical scheme discloses that the glass door is movably installed on the cabinet body, and the glass door is moved downward by pulling, so that the structure is relatively complex, the overall weight of the ventilation cabinet is increased, and the manufacturing and transportation costs are relatively high.

[0004] Therefore, it is necessary to propose an improvement to overcome the defects of the prior art. INVENTION CONTENTS

[0005] The utility model aims at solving the problems in the prior art, and provides a ventilation cabinet, which solves the counterweight, transportation and installation cost problems of the ventilation cabinet window.

[0006] The technical scheme of the utility model is:

[0007] A ventilation cabinet, comprising a cabinet body, a visible window is arranged on the front face of the cabinet body, a first window panel and a second window panel are arranged on the side of the visible window, the first window panel is hinged to the cabinet body, an air supporting rod is hinged between the first window panel and the cabinet body, the second window panel is arranged at the lower end of the first window panel, and a hinge is connected between the first window panel and the second window panel.

[0008] As a preferred technical scheme, an air curtain machine is arranged on the cabinet body at the upper end of the visible window, and an air curtain machine air inlet is arranged on the cabinet body.

[0009] As a preferred technical scheme, an air curtain deflector channel is arranged on the first visible window panel, and the air curtain deflector channel is arranged on the air outlet side of the air curtain machine.

[0010] As a preferred technical scheme, the cabinet body is provided with a vertical flow guide plate and an inclined flow guide plate, the vertical flow guide plate is connected with the inclined flow guide plate, the inclined flow guide plate is arranged on the upper end surface of the cabinet body, and the inclined flow guide plate and the vertical flow guide plate form an exhaust air flow guide channel with the rear panel of the cabinet body.

[0011] As a preferred technical scheme, the cabinet body is provided with a vertical flow guide plate and an inclined flow guide plate, the vertical flow guide plate is connected with the inclined flow guide plate, the inclined flow guide plate is arranged on the upper end surface of the cabinet body, and the inclined flow guide plate and the vertical flow guide plate form an exhaust air flow guide channel with the rear panel of the cabinet body.

[0012] As a preferred technical scheme, the first window panel and the second window panel are both transparent panels.

[0013] As a preferred technical scheme, the cabinet body is provided with a vertical flow guide plate and an inclined flow guide plate, the vertical flow guide plate is connected with the inclined flow guide plate, the inclined flow guide plate is arranged on the upper end surface of the cabinet body, and the inclined flow guide plate and the vertical flow guide plate form an exhaust air flow guide channel with the rear panel of the cabinet body.

[0014] As a preferred technical scheme, the cabinet body is provided with a vertical flow guide plate and an inclined flow guide plate, the vertical flow guide plate is connected with the inclined flow guide plate, the inclined flow guide plate is arranged on the upper end surface of the cabinet body, and the inclined flow guide plate and the vertical flow guide plate form an exhaust air flow guide channel with the rear panel of the cabinet body.

[0015] As a preferred technical scheme, the cabinet body is provided with a vertical flow guide plate and an inclined flow guide plate, the vertical flow guide plate is connected with the inclined flow guide plate, the inclined flow guide plate is arranged on the upper end surface of the cabinet body, and the inclined flow guide plate and the vertical flow guide plate form an exhaust air flow guide channel with the rear panel of the cabinet body.

[0016] Compared with the prior art, the ventilated cabinet has the beneficial effects that:

[0017] The ventilated cabinet has the beneficial effects that: The ventilated cabinet has the beneficial effects that:

[0018] Figure 1 The ventilated cabinet has the beneficial effects that:

[0019] Figure 2 The ventilated cabinet has the beneficial effects that:

[0020] Figure 3 The ventilated cabinet has the beneficial effects that:

[0021] Figure 4 The ventilated cabinet has the beneficial effects that:

[0022] Figure 5 The ventilated cabinet has the beneficial effects that:

[0023] Figure 6The side view of the second window of the fume hood of the utility model is turned up, and the first window is adjusted.

[0024] Figure 7 The schematic diagram of exhaust air of the fume hood of the utility model during work.

[0025] In the figure: 1, air switch; 2, air curtain machine air inlet; 3, first window panel; 4, socket; 5, second window panel; 6, gas collecting cover outlet; 7, gas collecting cover; 8, cabinet; 9, controller; 10, air curtain machine; 11, air support rod; 12, inclined guide plate; 13, vertical guide plate; 14, air curtain guide channel; 15, exhaust air guide channel. DETAILED DESCRIPTION

[0026] In order to make the technical means, technical features, utility model purposes and technical effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0027] As shown in Figure 1 and Figure 2 , it is the overall structure schematic diagram of the fume hood of the utility model.

[0028] The fume hood of the embodiment comprises a cabinet 8, the front face of the cabinet 8 is provided with a visible window, the visible window is provided with a first window panel 3 and a second window panel 5 on the side, the first window panel 3 is hinged to the cabinet 8 on the upper end of the visible window, an air support rod 11 is hinged between the first window panel 3 and the cabinet 8, the second window panel 5 is arranged at the lower end of the first window panel 3, the second window panel 5 is connected through a hinge between the first window panel 3, and the second window panel 5 is turned up through the hinge to the upper side of the first window panel 3. The first window panel 3 and the second window panel 5 are flexibly adjusted, in special circumstances, when the experimental personnel need to leave temporarily, the visible window is completely closed by turning down the second window panel 5, not only the overall counterweight of the fume hood is reduced, but also the failure rate of the window panel is reduced, the installation is simple, the parts can be transported to the site for installation, and the transportation, labor and other costs are reduced.

[0029] The air curtain machine 10 is installed on the cabinet 8 on the upper end of the visible window, the air curtain machine air inlet 2 is arranged on the front end face of the cabinet 8, the position of the air curtain machine air inlet 2 corresponds to the position of the air curtain machine 10, the air outlet of the air curtain machine 10 faces downward and corresponds to the position of the visible window, the air curtain machine 10 blocks the exchange of air inside and outside the cabinet 8, and the safety of the experimental personnel is protected.

[0030] The inclined flow guide plate 12 is fixed on the upper end face in the cabinet body 8, the lower end of the inclined flow guide plate 12 is fixed with the vertical flow guide plate 13, and the inclined flow guide plate 12 and the vertical flow guide plate 13 combine to form an exhaust flow guide channel 15 with the rear panel of the cabinet body 8. The upper end of the cabinet body 8 is fixed with a gas collecting hood 7, the gas collecting hood 7 is provided with an exhaust opening 6, the exhaust flow guide channel 15 is communicated with the exhaust opening 6, and the exhaust flow guide channel 15 is used for exhausting the gas in the cabinet body 8, so that the exhaust effect is good, the leakage rate is low, the exhaust effect is ensured while the exhaust volume is greatly reduced in cooperation with the air curtain machine 10, the leakage of harmful gas is blocked, and the gas environment in the laboratory is ensured.

[0031] The first window panel 3 and the second window panel 5 are transparent visual panels, and laboratory personnel can operate and observe conveniently.

[0032] The socket 4 is installed on the cabinet body 8, so that the experimental personnel can plug in experimental equipment, and the use convenience of the fume hood is improved.

[0033] The controller 9 is installed on the cabinet body 8 and is used for overall control of the fume hood.

[0034] The air switch 1 is installed on the cabinet body 8, the overall electrical safety of the fume hood is protected, and the accident occurrence rate is reduced.

[0035] As shown in Figure 3 and Figure 4 , it is the overall structure schematic view of the first window panel of the utility model.

[0036] The vertical air curtain flow guide channel 14 is arranged on the first window panel 3 and is below the air outlet of the air curtain machine 10, the diffusion path of the air curtain gas is reduced, the air curtain flow guide channel 14 improves the use effect of the air curtain machine 10, and the relatively small exhaust volume can block the risk of gas leakage in the cabinet body 8. When the angle of the first window panel 3 is adjusted, the upper end air inlet of the air curtain flow guide channel 14 and the air outlet of the air curtain machine 10 have a small deviation angle, and the use effect of the air curtain machine 10 is not affected.

[0037] As shown in Figure 5 and Figure 6 , it is the schematic view that the second window of the fume hood of the utility model is turned up and the first window is adjusted.

[0038] As shown in the drawings, the second window panel 5 is turned up and is attached to the first window panel 3, the angle of the first window panel 3 is adjusted, the first window panel 3 is supported and positioned by the air supporting rod 11, the adjustment is convenient, and the use flexibility is high.

[0039] As shown in Figure 7 , it is the exhaust schematic view when the fume hood of the utility model works.

[0040] When the fume hood is working, the air curtain machine 10 is opened, the gas blown by the air curtain machine 10 is blown out through the air curtain guide channel 14 in the first view window panel 3, forming a gas protection wall of the view window, the gas hood 7 is opened, the gas in the cabinet 8 is discharged through the exhaust guide channel 15, the air enters the cabinet 8 from the view window under the influence of the negative pressure in the cabinet, the toxic gas in the cabinet 8 is discharged along the exhaust guide channel 15 to the outside of the cabinet 8 along with the air, and the safe and pollution-free experimental environment of the laboratory is ensured.

[0041] The above is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any equivalent changes and modifications made according to the content of the patent application of the present application shall belong to the technical scope of the present application.

Claims

1. A fume hood comprising a cabinet (8), characterised in that, The front of the cabinet (8) is provided with a visual window, the visual window is provided with a first window panel (3) and a second window panel (5), the first window panel (3) is hinged to the cabinet (8), a gas supporting rod (11) is hinged between the first window panel (3) and the cabinet (8), the second window panel (5) is arranged at the lower end of the first window panel (3), and a hinge is connected between the first window panel (3) and the second window panel (5).

2. The fume hood of claim 1, wherein, The cabinet (8) is provided with an air curtain machine (10) at the upper end of the visual window, and the cabinet (8) is provided with an air curtain machine air inlet (2).

3. The fume hood of claim 2, wherein, The first window panel (3) is provided with an air curtain guide channel (14), and the air curtain guide channel (14) is arranged at the air outlet side of the air curtain machine (10).

4. The fume hood of claim 1, wherein, The cabinet (8) is provided with a vertical guide plate (13) and an inclined guide plate (12), the vertical guide plate (13) is connected with the inclined guide plate (12), the inclined guide plate (12) is arranged on the upper end surface of the cabinet (8), and the inclined guide plate (12) and the vertical guide plate (13) form an exhaust guide channel (15) with the rear panel of the cabinet (8).

5. The fume hood of claim 4, wherein, The cabinet (8) is provided with a gas collecting hood (7), the gas collecting hood (7) is arranged above the exhaust guide channel (15), and the gas collecting hood (7) is provided with an air outlet (6).

6. The fume hood of claim 1, wherein, The first window panel (3) and the second window panel (5) are both transparent panels.

7. The fume hood according to any one of claims 1-6, wherein, The cabinet (8) is provided with a socket (4).

8. The fume hood according to any one of claims 1-6, wherein, The cabinet (8) is provided with a controller (9).

9. The fume hood according to any one of claims 1-6, wherein, The cabinet (8) is provided with an air switch (1).

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