Ventilation cabinet capable of directionally exhausting air for laboratory

Abstract

The utility model discloses a laboratory fume hood capable of directionally exhausting air, which relates to the technical field of fume hoods, and comprises an installation cabinet, the inner wall of the installation cabinet is provided with an exhaust opening, the top of the installation cabinet is fixedly connected with an air exhausting mechanism, the air exhausting mechanism comprises an air exhausting box, one side of the inner cavity of the air exhausting box is provided with an air outlet pipe, and the other side of the inner cavity of the air exhausting box is provided with an air inlet pipe. And one end of the air outlet pipe communicates with an air purifier, a mounting plate is fixedly connected to the inner wall of the air draft box, a fan is fixedly connected to the surface of the mounting plate, and a first air draft pipe is fixedly connected to one end of one side of an inner cavity of the air draft box. Due to the arrangement of the multiple suction openings and the suction pipes, when the ventilation cabinet is used, air can be sucked from the transverse angle, the vertical angle and the inclined angle according to experiment selection, compared with a conventional ventilation cabinet, the ventilation cabinet has more directional air suction angles, and the ventilation cabinet is higher in adaptability and more convenient to use when different experiments are carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to a fume hood capable of directionally extracting air for use in a laboratory. Background Art

[0002] Fume hoods are an indispensable type of laboratory furniture. The most important function of a fume hood is the exhaust function. In a chemical laboratory, various ventilation environments are required during experimental operations, and fume hoods can be used to simulate ventilation environments.

[0003] For example, Chinese patent publication number CN219683535U discloses a laboratory fume hood with directional exhaust, comprising a laboratory fume hood, wherein an exhaust mechanism is interspersed and movably connected between the upper left and upper right portions of the laboratory fume hood, an exhaust fan is interspersed and fixedly connected to the upper middle portion of the laboratory fume hood, a purification mechanism is interspersed and fixedly connected to the upper end of the exhaust fan, an exhaust duct is interspersed and fixedly connected to the upper middle portion of the purification mechanism, an experimental operating table is interspersed and fixedly connected between the lower portion of the left cabinet wall and the lower portion of the right cabinet wall of the laboratory fume hood, and the lower front end of the laboratory fume hood has two cabinet doors movably connected via hinges. The laboratory fume hood with directional exhaust described in the utility model can adjust the position of the exhaust hood to enhance the exhaust effect by providing the exhaust mechanism, and can efficiently purify the gas generated during the experiment to avoid air pollution by providing the purification mechanism and the guide mechanism.

[0004] Although the above example can enhance the exhaust effect to a certain extent by setting up an exhaust hood, in actual use, it can only exhaust air in one direction inside the cabinet. The exhaust direction is relatively single and it is difficult to adapt to different experimental needs. Therefore, a fume hood with directional exhaust for laboratory use is proposed. Utility Model Content

[0005] The utility model provides a fume hood capable of directional exhaust for laboratory use, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A fume hood with directionable air extraction for laboratory use, comprising an installation cabinet, an inner wall of the installation cabinet being provided with an exhaust port, an exhaust mechanism fixedly connected to the top of the installation cabinet, the exhaust mechanism comprising an exhaust box, an air outlet pipe being provided on one side of an inner cavity of the exhaust box, one end of the air outlet pipe being connected to an air purifier, an inner wall of the exhaust box being fixedly connected to a mounting plate, a surface of the mounting plate being fixedly connected to a fan, one end of one side of the inner cavity of the exhaust box being fixedly connected to a first exhaust pipe, the other end of one side of the inner cavity of the exhaust box being fixedly connected to a third exhaust pipe, and a middle part of one side of the inner cavity of the exhaust box being fixedly connected to a second exhaust pipe.

[0008] A further improvement of the technical solution of the present utility model is that: the first exhaust pipe includes a main pipe, one end of the main pipe is connected to the interior of the exhaust box, and a branch pipe is provided at the bottom of one end of the main pipe.

[0009] A further improvement of the technical solution of the present invention is that a solenoid valve is provided at one end of the main pipe close to the exhaust box, and the structure of the first exhaust pipe is the same as that of the second exhaust pipe and the third exhaust pipe.

[0010] A further improvement of the technical solution of the present utility model is that the installation cabinet includes a cabinet body, a sundries cabinet is provided at the lower end of the cabinet body, a power socket is provided on one side of the front of the cabinet body, and a control button is provided on the other side of the front of the cabinet body.

[0011] A further improvement of the technical solution of the present invention is that: a first light-transmitting window is fixedly connected to the inner wall of the cabinet, and a second light-transmitting window is slidably connected to the inner wall of the cabinet in front of the first light-transmitting window.

[0012] A further improvement of the technical solution of the present utility model is that the exhaust vent includes a horizontal exhaust vent, the horizontal exhaust vent is arranged on the back of the inner wall of the cabinet, an inclined exhaust vent is arranged above the horizontal exhaust vent, and a vertical exhaust vent is arranged on one side of the inclined exhaust vent and at the top of the inner cavity of the cabinet.

[0013] A further improvement of the technical solution of the present utility model is that one end of the first exhaust pipe is connected to the interior of the vertical exhaust port, one end of the second exhaust pipe is connected to the interior of the horizontal exhaust port, and one end of the third exhaust pipe is connected to the interior of the inclined exhaust port.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] The utility model provides a fume hood with directional exhaust for laboratory use. By arranging a plurality of exhaust ports and exhaust pipes, when using the fume hood, air can be exhausted from three angles, namely horizontally, vertically and obliquely, according to the experiment. Compared with conventional fume hoods, the fume hood has more directional exhaust angles, is more adaptable and more convenient to use when conducting different experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the bottom-up structure of the present invention;

[0019] Figure 4 This is a side sectional structural diagram of the utility model;

[0020] Figure 5 This is a schematic cross-sectional view of the exhaust mechanism of the present invention.

[0021] In the figure: 11, cabinet; 12, storage cabinet; 13, power socket; 14, control button; 15, first light-transmitting window; 16, second light-transmitting window; 21, horizontal exhaust vent; 22, inclined exhaust vent; 23, vertical exhaust vent; 31, exhaust box; 32, air outlet duct; 33, air purifier; 34, mounting plate; 35, fan; 36, first exhaust duct; 361, main pipe; 362, branch pipe; 363, solenoid valve; 37, second exhaust duct; 38, third exhaust duct. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the embodiments:

[0023] Example 1

[0024] like Figure 1-5 As shown, the utility model provides a laboratory fume hood with directional exhaust, including a mounting cabinet, an inner wall of the mounting cabinet is provided with an exhaust port, the top of the mounting cabinet is fixedly connected to an exhaust mechanism, the exhaust mechanism includes an exhaust box 31, one side of the inner cavity of the exhaust box 31 is provided with an air outlet pipe 32, one end of the air outlet pipe 32 is connected to an air purifier 33, the inner wall of the exhaust box 31 is fixedly connected to a mounting plate 34, the surface of the mounting plate 34 is fixedly connected to a fan 35, and one end of the inner cavity of the exhaust box 31 is fixedly connected to The first exhaust pipe 36 and the third exhaust pipe 38 are fixedly connected to the other end of the inner cavity of the exhaust box 31, and the second exhaust pipe 37 is fixedly connected to the middle of the inner cavity of the exhaust box 31. The first exhaust pipe 36 includes a main pipe 361, one end of the main pipe 361 is connected to the interior of the exhaust box 31, a branch pipe 362 is provided at the bottom of one end of the main pipe 361, and an electromagnetic valve 363 is provided at the end of the main pipe 361 close to the exhaust box 31. The structure of the first exhaust pipe 36 is the same as that of the second exhaust pipe 37 and the third exhaust pipe 38.

[0025] In this embodiment, by starting the fan 35, under the action of the fan 35, the air in the exhaust box 31 is input into the air purifier 33 along the outlet pipe 32, and is discharged after purification. Under the action of the negative pressure environment in the exhaust box 31, the air in the cabinet 11 enters the exhaust box from the exhaust port along the exhaust pipe, thereby realizing continuous exhaust work in the cabinet 11.

[0026] Example 2

[0027] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the exhaust port includes a horizontal exhaust port 21, the horizontal exhaust port 21 is arranged on the back of the inner wall of the cabinet 11, an inclined exhaust port 22 is arranged above the horizontal exhaust port 21, a vertical exhaust port 23 is arranged on one side of the inclined exhaust port 22 and at the top of the inner cavity of the cabinet 11, one end of the first exhaust pipe 36 is connected to the interior of the vertical exhaust port 23, one end of the second exhaust pipe 37 is connected to the interior of the horizontal exhaust port 21, and one end of the third exhaust pipe 38 is connected to the interior of the inclined exhaust port 22.

[0028] In this embodiment, when the solenoid valve in the first exhaust pipe 36 is opened by the control button 14, the air in the cabinet body 11 can be vertically extracted from the top; when the solenoid valve in the second exhaust pipe 37 is opened, the air can be horizontally extracted from the back; when the solenoid valve in the third exhaust pipe 38 is opened, the air can be obliquely extracted from the inclined exhaust port 22. Multiple directional exhaust direction settings can be selected, which can improve the adaptability of the fume hood and make it more convenient to use.

[0029] Example 3

[0030] like Figure 1-5 As shown, based on Example 1, the utility model provides a technical solution: preferably, the installation cabinet includes a cabinet body 11, a sundries cabinet 12 is provided at the lower end of the cabinet body 11, a power socket 13 is provided on one side of the front of the cabinet body 11, a control button 14 is provided on the other side of the front of the cabinet body 11, a first light-transmitting window 15 is fixedly connected to the inner wall of the cabinet body 11, and a second light-transmitting window 16 is slidably connected to the inner wall of the cabinet body 11 on the front of the first light-transmitting window 15.

[0031] In this embodiment, when using the fume hood, the second light-transmitting window 16 is lifted upwards and experiments are conducted inside the cabinet 11. At the same time, the provision of the sundries cabinet 12 and the power socket 13 can also improve the functionality of the fume hood, making it easier to use.

[0032] The following is a detailed description of the working principle of the laboratory's directional exhaust fume hood.

[0033] like Figure 1-5As shown, when using the fume hood, after the second light-transmitting window 16 is lifted upward, an experiment is carried out in the cabinet 11. During the experiment, the fan 35 is started. Under the action of the fan 35, the air in the exhaust box 31 is input into the air purifier 33 along the air outlet pipe 32, and is discharged after being purified. Under the action of the negative pressure environment in the exhaust box 31, the air in the cabinet 11 enters the exhaust box from the exhaust port along the exhaust pipe, thereby continuously exhausting the air in the cabinet 11. According to the experimental needs, the control button 14 is turned on and off. When the solenoid valve in the first exhaust pipe 36 is opened, the air in the cabinet body 11 can be vertically extracted from the top. When the solenoid valve in the second exhaust pipe 37 is opened, the air can be horizontally extracted from the back. When the solenoid valve in the third exhaust pipe 38 is opened, the air can be obliquely extracted from the inclined exhaust port 22. Multiple directional exhaust direction settings can be selected, which can improve the adaptability of the fume hood and make it more convenient to use. At the same time, the setting of the sundries cabinet 12 and the power socket 13 can also improve the functionality of the fume hood and make it more convenient to use.

[0034] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A laboratory fume hood with directional exhaust, comprising a mounting cabinet, characterized in that: The inner wall of the installation cabinet is provided with an exhaust port, and the top of the installation cabinet is fixedly connected to an exhaust mechanism, the exhaust mechanism includes an exhaust box (31), an air outlet pipe (32) is provided on one side of the inner cavity of the exhaust box (31), one end of the air outlet pipe (32) is connected to an air purifier (33), the inner wall of the exhaust box (31) is fixedly connected to a mounting plate (34), the surface of the mounting plate (34) is fixedly connected to a fan (35), one end of the inner cavity of the exhaust box (31) is fixedly connected to a first exhaust pipe (36), the other end of the inner cavity of the exhaust box (31) is fixedly connected to a third exhaust pipe (38), and the middle part of the inner cavity of the exhaust box (31) is fixedly connected to a second exhaust pipe (37).

2. A laboratory fume hood with directional exhaust according to claim 1, characterized in that: The first exhaust pipe (36) comprises a main pipe (361), one end of which is in communication with the interior of the exhaust box (31), and a branch pipe (362) is provided at the bottom of one end of the main pipe (361).

3. A laboratory fume hood with directional exhaust according to claim 2, characterized in that: An electromagnetic valve (363) is provided at one end of the main pipe (361) close to the exhaust box (31), and the structure of the first exhaust pipe (36) is the same as that of the second exhaust pipe (37) and the third exhaust pipe (38).

4. A laboratory fume hood with directional exhaust according to claim 1, characterized in that: The installation cabinet comprises a cabinet body (11), a sundries cabinet (12) is provided at the lower end of the cabinet body (11), a power supply socket (13) is provided on one side of the front of the cabinet body (11), and a control button (14) is provided on the other side of the front of the cabinet body (11).

5. A laboratory fume hood with directional exhaust according to claim 4, characterized in that: The inner wall of the cabinet (11) is fixedly connected to a first light-transmitting window (15), and the inner wall of the cabinet (11) is slidably connected to a second light-transmitting window (16) located on the front side of the first light-transmitting window (15).

6. A laboratory fume hood with directional exhaust according to claim 1, characterized in that: The air exhaust port comprises a horizontal air exhaust port (21), the horizontal air exhaust port (21) being arranged on the back side of the inner wall of the cabinet (11), an inclined air exhaust port (22) being arranged above the horizontal air exhaust port (21), and a vertical air exhaust port (23) being arranged on one side of the inclined air exhaust port (22) and located at the top of the inner cavity of the cabinet (11).

7. A laboratory fume hood with directional exhaust according to claim 6, characterized in that: One end of the first exhaust pipe (36) is connected to the interior of the vertical exhaust port (23), one end of the second exhaust pipe (37) is connected to the interior of the horizontal exhaust port (21), and one end of the third exhaust pipe (38) is connected to the interior of the inclined exhaust port (22).

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