Energy-saving ventilation cabinet

Abstract

The utility model discloses an energy-saving ventilation cabinet which comprises a device shell, the front end of the device shell is movably connected with a turning cover sealing plate, the upper end of the device shell is fixedly connected with a purification seat, and three sets of purification mechanisms are arranged on the inner side of the purification seat. The placing seat moves out in the device shell, a worker can conveniently place a test article which is large in size and inconvenient to place in the device shell into a ventilation cabinet, in the process of testing in the device shell, gas in the device shell is detected by the air detection mechanism, and when the gas in the device shell is normal, the device shell is closed. And if the gas in the device shell is normal, one group of purification mechanisms is started to detect the gas in the device shell, and if the gas in the device shell is abnormal, the three groups of purification mechanisms are simultaneously started to detect the gas in the device shell, so that the device is convenient to save energy.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to an energy-saving fume hood. Background Art

[0002] Laboratory fume hoods are mainly cabinet-type exhaust hood structures. In chemical laboratories, various harmful gases, odors, moisture, and flammable, explosive, and corrosive substances are generated during experimental operations. In order to protect the safety of users and prevent the pollutants in the experiment from spreading to the laboratory, experiments are carried out in fume hoods.

[0003] Among them, the existing patent number CN202322328146.6 discloses a sealed laboratory fume hood, which has a slidable sub-plate arranged in the seal. After the sub-plate is unlocked, when the hand is put into the operating room for experiment, the soft seal allows the adjustment window to be pulled down to the bottom, and the arm pushes the sub-plate upward, so that the arm can replace the original position of the sub-plate during the experiment. At the same time, the seal can also block the gap around the arm to reduce the leakage of gas inside the operating room.

[0004] However, the above-mentioned existing fume hoods have limited feed ports. If the volume of the test product is large, it is inconvenient for the staff to put the test product into the fume hood. In addition, the top of the fume hood mostly uses a large fan or multiple sets of fans to filter the exhaust gas inside the fume hood, and the staff cannot effectively utilize the multiple sets of fans according to the exhaust gas generated by the test, resulting in a large energy consumption; therefore, it does not meet the existing needs. We have proposed an energy-saving fume hood. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-saving fume hood to solve the problems mentioned in the above background technology, such as the limited feed port of the existing fume hood, if the volume of the test product is large, it is inconvenient for the staff to put the test product into the fume hood, and most of the fume hoods use a large fan or multiple sets of fans on the top to filter the exhaust gas inside the fume hood, and the staff cannot effectively use the multiple sets of fans according to the exhaust gas generated by the test, thereby resulting in greater energy consumption and other problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy-saving fume hood, comprising a device shell, the front end of the device shell is movably connected with a flip sealing plate, the upper end of the device shell is fixedly connected with a purification seat, three groups of purification mechanisms are provided on the inner side of the purification seat, dustproof plates and filter elements are respectively provided at the upper and lower ends of the inner wall of the purification seat above the purification mechanism, and a placement seat is movably connected to the bottom end of the inner wall of the device shell below the purification seat.

[0007] Preferably, a movable groove is provided below the placement seat on the inner side of the device housing, a screw rod is provided at one end of the bottom surface of the placement seat on the inner side of the movable groove, and one end of the screw rod passes through the placement seat and the movable groove and extends to the inner side of the device housing.

[0008] Preferably, a rotating shaft rod is provided on one side of the flip cover sealing plate located on the inner side of the device housing, the rotating shaft rod passes through the flip cover sealing plate and extends to the other side of the inner wall of the device housing, a transmission rod A is provided on the inner side of the device housing at the center position of the rotating shaft rod, a transmission rod B is provided behind the transmission rod A at the rear end of the inner wall of the device housing, and the bottom end of the transmission rod B passes through the device housing and extends to above the screw rod.

[0009] Preferably, a hand extension opening A and a hand extension opening B are respectively provided at the bottom end of the front end surface of the flip cover sealing plate, a flip cover is provided inside the hand extension opening A and the hand extension opening B, and sealing strips are provided at the intersection of the two sides of the flip cover sealing plate and the device shell.

[0010] Preferably, bevel gears are provided at both ends of the transmission rod A and the transmission rod B and at the intersections of the transmission rod A and the transmission rod B with the rotating shaft rod and the screw rod respectively, and the transmission rod A and the transmission rod B are respectively connected to the rotating shaft rod and the screw rod through the bevel gears.

[0011] Preferably, the purification mechanism includes a servo motor, a connecting rod and an intake fan, wherein the bottom ends of the two groups of purification mechanisms are located on the inner side of the purification seat and a connecting plate is provided, wherein the bottom ends of the connecting plate below the two groups of purification mechanisms are provided with sealing blocks, and the bottom surface of the connecting plate above the sealing block is provided with an intake port.

[0012] Preferably, an electric push rod is provided at the rear end of the sealing block located on the inner side of the connecting plate, and the sealing block is movably connected to the connecting plate through the electric push rod. A control switch is provided on the inner wall of the purification seat behind the sealing block, and an air detection mechanism is provided at the bottom end of the filter element below the control switch. The air detection mechanism is electrically connected to the control switch and two groups of the purification mechanisms.

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

[0014] 1. When the flip cover sealing plate is opened, the rotating shaft rod inside the flip cover sealing plate drives the screw rod at the bottom of the placement seat to rotate simultaneously through the transmission rod A and the transmission rod B during the rotation process, so that when the flip cover sealing plate is opened, the placement seat is moved out of the device shell, which is convenient for the staff to put the test products that are large in size and inconvenient to put into the device shell into the fume hood;

[0015] 2. During the test inside the device shell of the utility model, the air detection mechanism detects the gas inside the device shell. When the gas inside the device shell is normal, one of the purification mechanisms is started to detect the gas inside the device shell. If the gas inside the device shell is abnormal, three purification mechanisms are started at the same time to detect the gas inside the device shell, so as to facilitate energy saving of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 A top view of the utility model as a whole;

[0018] Figure 3 It is a side view structural diagram of the housing of the device of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the purification seat of the utility model.

[0020] In the figure: 1. device housing; 2. flip cover sealing plate; 201. hand opening A; 202. hand opening B; 3. rotating shaft rod; 4. transmission rod A; 5. transmission rod B; 6. placement seat; 7. screw rod; 8. purification seat; 801. dustproof plate; 802. filter element; 9. purification mechanism; 10. sealing block; 11. electric push rod; 12. control switch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figures 1 to 4The utility model provides an embodiment: an energy-saving fume hood, comprising a device shell 1, a flap sealing plate 2 is movably connected to the front end of the device shell 1, a hand-reaching opening A201 and a hand-reaching opening B202 are respectively provided at the bottom end of the front end surface of the flap sealing plate 2, a flap is provided on the inner side of the hand-reaching opening A201 and the hand-reaching opening B202, sealing strips are provided at the intersection of the two sides of the flap sealing plate 2 located at the device shell 1, a purification seat 8 is fixedly connected to the upper end of the device shell 1, three groups of purification mechanisms 9 are provided on the inner side of the purification seat 8, a dustproof plate 801 and a filter element 802 are respectively provided at the upper and lower ends of the inner wall of the purification seat 8 above the purification mechanism 9, and the lower part of the purification seat 8 is located outside the device A placement seat 6 is movably connected to the bottom end of the inner wall of the shell 1. During the process of opening the flip cover sealing plate 2, the placement seat 6 is moved out inside the device shell 1, which is convenient for the staff to put the test products that are large in size and inconvenient to put into the device shell 1 into the fume hood. During the test inside the device shell 1, the air detection mechanism detects the gas inside the device shell 1. When the gas inside the device shell 1 is normal, one of the purification mechanisms 9 is started to detect the gas inside the device shell 1. If the gas inside the device shell 1 is abnormal, three groups of purification mechanisms 9 are started at the same time to detect the gas inside the device shell 1, which is convenient for the device to save energy.

[0023] Furthermore, a movable groove is provided below the placement seat 6 and located on the inner side of the device housing 1. One end of the bottom surface of the placement seat 6 and located on the inner side of the movable groove is provided with a screw rod 7. One end of the screw rod 7 penetrates the placement seat 6 and the movable groove and extends to the inner side of the device housing 1. One side of the flip cover sealing plate 2 is located on the inner side of the device housing 1 and is provided with a rotating shaft rod 3. The rotating shaft rod 3 penetrates the flip cover sealing plate 2 and extends to the other side of the inner wall of the device housing 1. The center position of the rotating shaft rod 3 is located on the inner side of the device housing 1 and is provided with a transmission rod A4. The rear of the transmission rod A4 is located at the rear end of the inner wall of the device housing 1 and is provided with a transmission rod B5. The bottom end of the transmission rod B5 penetrates the device housing 1 and extends to the top of the screw rod 7. Bevel gears are provided at both ends of the transmission rod A4 and the transmission rod B5 and at the intersections of the transmission rod A4 and the transmission rod B5 with the rotating shaft rod 3 and the screw rod 7 respectively. The transmission rod A4 and the transmission rod B5 are respectively connected to the rotating shaft rod 3 and the screw rod 7 through bevel gears.

[0024] By adopting the above technical solution, when the flip cover sealing plate 2 is opened, the rotating shaft rod 3 inside the flip cover sealing plate 2 drives the screw rod 7 at the bottom of the placement seat 6 to rotate simultaneously through the transmission rod A4 and the transmission rod B5 during the rotation process, so that during the opening process of the flip cover sealing plate 2, the placement seat 6 is moved out of the device housing 1, which makes it convenient for the staff to put the test products that are large in size and inconvenient to put into the device housing 1 into the fume hood.

[0025] Furthermore, the purification mechanism 9 includes a servo motor, a connecting rod and an intake fan, wherein the bottom ends of the two groups of purification mechanisms 9 are located on the inner side of the purification seat 8 and are provided with a connecting plate, wherein the bottom ends of the two groups of purification mechanisms 9 are located below the connecting plate and are provided with a sealing block 10, an air intake port is provided above the sealing block 10 and located on the bottom surface of the connecting plate, the rear end of the sealing block 10 is located on the inner side of the connecting plate and is provided with an electric push rod 11, the sealing block 10 is movably connected to the connecting plate through the electric push rod 11, a control switch 12 is provided on the inner wall of the purification seat 8 behind the sealing block 10, an air detection mechanism is provided at the bottom end of the filter element 802 below the control switch 12, and the air detection mechanism is electrically connected to the control switch 12 and the two groups of purification mechanisms 9.

[0026] By adopting the above technical scheme, during the test inside the device casing 1, the air detection mechanism detects the gas inside the device casing 1. When the gas inside the device casing 1 is normal, one of the purification mechanisms 9 is started to detect the gas inside the device casing 1. If the gas inside the device casing 1 is abnormal, three purification mechanisms 9 are started at the same time to detect the gas inside the device casing 1, so as to facilitate energy saving of the device.

[0027] To sum up, when the fume hood is in use, first check whether each component is intact. After the inspection is completed, when the flip cover sealing plate 2 is opened, the rotating shaft rod 3 inside the flip cover sealing plate 2 drives the screw rod 7 at the bottom of the placement seat 6 to rotate simultaneously through the transmission rod A4 and the transmission rod B5 during the rotation process, so that during the opening of the flip cover sealing plate 2, the placement seat 6 is moved out of the device shell 1, which is convenient for the staff to put the test products that are large in size and inconvenient to put into the device shell 1 into the fume hood. After the placement is completed, the power is turned on and the device is started. During the test inside the device shell 1, the air detection mechanism detects the gas inside the device shell 1. When the gas inside the device shell 1 is normal, one of the purification mechanisms 9 is started to detect the gas inside the device shell 1. If the gas inside the device shell 1 is abnormal, three groups of purification mechanisms 9 are started at the same time to detect the gas inside the device shell 1, which is convenient for the device to save energy.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. An energy-saving fume hood, comprising a device housing (1), characterized in that: The front end of the device housing (1) is movably connected to a flip cover sealing plate (2), the upper end of the device housing (1) is fixedly connected to a purification seat (8), the inner side of the purification seat (8) is provided with three groups of purification mechanisms (9), the upper and lower ends of the inner wall of the purification seat (8) above the purification mechanism (9) are respectively provided with a dustproof plate (801) and a filter element (802), and the lower end of the inner wall of the device housing (1) is movably connected to a placement seat (6).

2. An energy-saving fume hood according to claim 1, characterized in that: A movable groove is provided below the placement seat (6) and located inside the device housing (1); a screw rod (7) is provided at one end of the bottom surface of the placement seat (6) and located inside the movable groove; one end of the screw rod (7) passes through the placement seat (6) and the movable groove and extends to the inside of the device housing (1).

3. The energy-saving fume hood according to claim 1, characterized in that: A rotating shaft rod (3) is provided on one side of the flip cover sealing plate (2) and is located on the inner side of the device housing (1). The rotating shaft rod (3) penetrates the flip cover sealing plate (2) and extends to the other side of the inner wall of the device housing (1). A transmission rod A (4) is provided on the inner side of the device housing (1) at the center of the rotating shaft rod (3). A transmission rod B (5) is provided behind the transmission rod A (4) and is located at the rear end of the inner wall of the device housing (1). The bottom end of the transmission rod B (5) penetrates the device housing (1) and extends to the top of the screw rod (7).

4. The energy-saving fume hood according to claim 1, characterized in that: A hand extension opening A (201) and a hand extension opening B (202) are respectively provided at the bottom end of the front end surface of the flip cover sealing plate (2), a flip cover is provided inside the hand extension opening A (201) and the hand extension opening B (202), and sealing strips are provided at the intersection of the two sides of the flip cover sealing plate (2) with the device housing (1).

5. The energy-saving fume hood according to claim 3, characterized in that: Bevel gears are provided at both ends of the transmission rod A (4) and the transmission rod B (5) and at the intersections of the transmission rod A (4) and the transmission rod B (5) with the rotating shaft rod (3) and the screw rod (7), respectively. The transmission rod A (4) and the transmission rod B (5) are respectively connected to the rotating shaft rod (3) and the screw rod (7) through the bevel gears.

6. The energy-saving fume hood according to claim 1, characterized in that: The purification mechanism (9) comprises a servo motor, a connecting rod and an air intake fan, wherein the bottom ends of the two groups of purification mechanisms (9) are located on the inner side of the purification seat (8) and a connecting plate is provided, wherein the bottom ends of the two groups of purification mechanisms (9) are located below the bottom ends of the connecting plate and a sealing block (10) is provided, and the top of the sealing block (10) is located on the bottom surface of the connecting plate and an air intake port is provided.

7. An energy-saving fume hood according to claim 6, characterized in that: An electric push rod (11) is provided at the rear end of the sealing block (10) located on the inner side of the connecting plate, and the sealing block (10) is movably connected to the connecting plate via the electric push rod (11). A control switch (12) is provided on the inner wall of the purification seat (8) behind the sealing block (10), and an air detection mechanism is provided at the bottom end of the filter element (802) below the control switch (12). The air detection mechanism is electrically connected to the control switch (12) and two groups of the purification mechanisms (9).

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