Stable multifunctional atomic suction hood

Abstract

The utility model discloses a stable multifunctional atomic suction hood, which relates to the field of experimental equipment, and comprises a suction hood, the top of the suction hood is connected with a first air guide pipe, the left side and the right side of the first air guide pipe are connected with filter covers, the first air guide pipe is internally connected with a rotating shaft, and the outer wall of the rotating shaft is connected with a gear. The front side and the rear side of each partition plate are connected with the front inner side wall and the rear inner side wall of the corresponding first air guide pipe. By rotating the rotating shaft, the rotating shaft drives the gear to rotate, the rack on the left side moves downwards, the rack on the right side moves upwards, and the first air inlet and the first air outlet in the rack on the right side correspond to the second air inlet and the second air outlet in the right side of the first air guide pipe; when the atomic suction hood is used, the filter screen in the filter hood on the right side can be used for filtering harmful gas, a sealing plate is pulled, the multiple filter screens are pulled by the sealing plate, the multiple filter screens can be disassembled, and the filter screens can be conveniently disassembled and replaced under the condition that use of the atomic suction hood is not stopped.

Description

Technical Field

[0001] The utility model relates to the field of experimental equipment, in particular to a stable and multifunctional atomic aspiration hood. Background Technique

[0002] In a chemical laboratory, one often comes into direct contact with highly toxic, corrosive, flammable and explosive chemicals. The volatilization, electrolysis, etc. of these chemicals will cause great harm to the human body. In order to reduce the harm of these tiny particles to the human body, an atomic absorption hood is usually used to absorb them.

[0003] At present, when using an atomic aspiration hood to absorb harmful gases, in order to filter the harmful gases, a filter screen is arranged inside the atomic aspiration hood, and the filter screen is used to filter the harmful gases. After the filter screen is used for a period of time, the filter screen needs to be replaced. During the replacement process, it is also necessary to stop the use of the atomic aspiration hood or disassemble the atomic aspiration hood, which is too inconvenient.

[0004] Therefore, it is very necessary to invent a stable and multifunctional atomic aspiration hood to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a stable and multifunctional atomic aspiration hood to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A stable and multifunctional atomic aspiration hood, including an aspiration hood, the top of the aspiration hood is connected with a first air duct, both the left and right sides of the first air duct are connected with filter hoods, a rotating shaft is connected inside the first air duct, gears are connected to the outer wall of the rotating shaft, partitions are arranged on both the upper and lower sides of the gears, the front and rear sides of the partitions are connected with the front and rear inner side walls of the first air duct, racks are arranged on both the left and right sides of the partitions, the racks are meshed with the gears, first air inlets and first air outlets are arranged on the surfaces of both racks, second air inlets and second air outlets are arranged on both the left and right sides of the first air duct, a plurality of filter screens are arranged inside the filter hood, a sealing plate is commonly connected to the front sides of the plurality of filter screens, an opening corresponding to the sealing plate is arranged on the front side of the filter hood, and a groove handle is arranged on the side wall of the sealing plate.

[0007] Preferably, a second air duct is arranged on the outer side of the top of the first air duct, a ring-shaped mounting plate is connected to the top of the second air duct, two electric telescopic rods are connected to the top of the ring-shaped mounting plate, pull rods are connected to the bottoms of both electric telescopic rods, and the pull rods are connected to the outer side of the first air duct.

[0008] Preferably, the front end of the rotating shaft passes through the first air duct through a bearing and is connected with a rotating block.

[0009] Preferably, expansion rubber pads are arranged on the inner wall of the second air duct, the outer side of the sealing plate, the left and right sides of the partition plate, and the side wall of the rack.

[0010] Preferably, two limiting rods are rotatably arranged on the front side of the filter cover.

[0011] The technical effects and advantages of the present utility model:

[0012] By rotating the rotating shaft, the rotating shaft drives the gear to rotate, moves the rack on the left downward, and makes the rack on the right move upward, so that the first air inlet and the first air outlet on the right rack correspond to the second air inlet and the second air outlet on the right side of the first air duct, and the harmful gas can be filtered by the filter screen in the filter cover on the right. Pull the sealing plate, and the sealing plate pulls multiple filter screens, so that the multiple filter screens can be disassembled, and it is convenient to disassemble and replace the filter screens without stopping the use of the atomic suction hood. Description of the drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the present utility model Figure 1 sectional structural schematic diagram;

[0015] Figure 3 is the present utility model Figure 2 partial enlarged structural schematic diagram of part A.

[0016] In the figure: 1, suction hood; 2, first air duct; 3, filter cover; 4, rotating shaft; 5, gear; 6, partition plate; 7, rack; 8, first air inlet; 9, first air outlet; 10, second air inlet; 11, second air outlet; 12, filter screen; 13, sealing plate; 14, groove handle; 15, second air duct; 16, annular mounting plate; 17, electric telescopic rod; 18, pull rod; 19, rotating block; 20, limiting rod. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] The present utility model provides as Figures 1-3A stable and multifunctional atomic suction hood as shown includes a suction hood 1. A first air duct 2 is connected to the top of the suction hood 1. Filter hoods 3 are connected to both the left and right sides of the first air duct 2. A rotating shaft 4 is connected inside the first air duct 2. A gear 5 is connected to the outer wall of the rotating shaft 4. Partition plates 6 are arranged on both the upper and lower sides of the gear 5. The front and rear sides of the partition plates 6 are connected to the front and rear inner side walls of the first air duct 2. Rack bars 7 are arranged on both the left and right sides of the partition plates 6. The rack bars 7 are meshed with the gear 5. First air inlets 8 and first air outlets 9 are formed on the surfaces of the two rack bars 7. Second air inlets 10 and second air outlets 11 are formed on both the left and right sides of the first air duct 2. A plurality of filter meshes 12 are arranged inside the filter hoods 3. A sealing plate 13 is commonly connected to the front sides of the plurality of filter meshes 12. An opening corresponding to the sealing plate 13 is formed on the front side of the filter hood 3. A groove handle 14 is arranged on the side wall of the sealing plate 13. First, the harmful gas is filtered by the filter meshes 12 inside the left filter hood 3. At this time, the first air inlets 8 and first air outlets 9 on the left rack bar 7 correspond to the second air inlets 10 and second air outlets 11 on the left side of the first air duct 2. If it is necessary to replace the filter meshes 12 inside the left filter hood 3, by rotating the rotating shaft 4, the rotating shaft 4 drives the gear 5 to rotate. When the gear 5 rotates, it drives the two rack bars 7 to move in opposite directions, moving the left rack bar 7 downward and the right rack bar 7 upward, so that the first air inlets 8 and first air outlets 9 on the right rack bar 7 correspond to the second air inlets 10 and second air outlets 11 on the right side of the first air duct 2. Then, the harmful gas can be filtered by the filter meshes 12 inside the right filter hood 3. At this time, by pulling the groove handle 14, the groove handle 14 pulls the sealing plate 13, and the sealing plate 13 pulls the plurality of filter meshes 12, so that the plurality of filter meshes 12 can be disassembled, which can facilitate the disassembly and replacement of the filter meshes 12 without stopping the use of the atomic suction hood 1.

[0019] A second air duct 15 is arranged on the outer side of the top of the first air duct 2. A circular mounting plate 16 is connected to the top of the second air duct 15. Two electric telescopic rods 17 are connected to the top of the circular mounting plate 16. Pull rods 18 are connected to the bottoms of the two electric telescopic rods 17. The pull rods 18 are connected to the outer side of the first air duct 2. By using the electric telescopic rods 17 to pull or push the pull rods 18, the pull rods 18 pull the first air duct 2 to

[0020] slide inside the second air duct 15. The first air duct 2 pulls the suction hood 1, so that the height of the suction hood 1 can be adjusted.

[0021] The front end of the rotating shaft 4 passes through the first air duct 2 through a bearing and is connected with a rotating block 19. By rotating the rotating block 19, it is convenient to drive the rotating shaft 4 to rotate.

[0022] The inner wall of the second air duct 15, the outer side of the sealing plate 13, the left and right sides of the partition plate 6, and the side wall of the rack 7 are all provided with expansion rubber pads. By setting the expansion rubber pads, the sealing performance of the second air duct 15, the sealing plate 13, the partition plate 6, and the rack 7 can be increased, and the rack 7 can be prevented from moving downward due to gravity because of the friction force.

[0023] Two limiting rods 20 are rotatably arranged on the front side of the filter cover 3. By rotating the limiting rods 20, the sealing plate 13 can be limited.

[0024] The working principle of the present utility model:

[0025] First, the harmful gas is filtered by the filter screen 12 in the left filter cover 3. At this time, the first air inlet 8 and the first air outlet 9 on the left rack 7 correspond to the second air inlet 10 and the second air outlet 11 on the left side of the first air duct 2. If it is necessary to replace the filter screen 12 in the left filter cover 3, by rotating the rotating shaft 4, the rotating shaft 4 drives the gear 5 to rotate. When the gear 5 rotates, it drives the two racks 7 to move in opposite directions, moving the left rack 7 downward and moving the right rack 7 upward, so that the first air inlet 8 and the first air outlet 9 on the right rack 7 correspond to the second air inlet 10 and the second air outlet 11 on the right side of the first air duct 2, and then the harmful gas can be filtered by the filter screen 12 in the right filter cover 3. At this time, by pulling the groove handle 14, the groove handle 14 pulls the sealing plate 13, and the sealing plate 13 pulls the multiple filter screens 12, so that the multiple filter screens 12 can be disassembled. By using the electric telescopic rod 17 to pull or push the pull rod 18, the pull rod 18 pulls the first air duct 2 to slide in the second air duct 15, and the first air duct 2 pulls the suction hood 1, so that the height of the suction hood 1 can be adjusted.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A stable and multi-functional atomic suction hood, comprising a suction hood, wherein a first air duct is connected to the top of the suction hood, and it is characterized in that: Filter covers are connected to both the left and right sides of the first air duct. A rotating shaft is connected inside the first air duct. A gear is connected to the outer wall of the rotating shaft. Partition plates are arranged on both the upper and lower sides of the gear. The front and rear sides of the partition plates are connected to the front and rear inner side walls of the first air duct. Rack teeth are arranged on both the left and right sides of the partition plates. The rack teeth are engaged with the gear. First air inlets and first air outlets are formed on the surfaces of both rack teeth. Second air inlets and second air outlets are formed on both the left and right sides of the first air duct. A plurality of filter meshes are arranged inside the filter cover. A sealing plate is commonly connected to the front sides of the plurality of filter meshes. An opening corresponding to the sealing plate is formed on the front side of the filter cover. A groove handle is arranged on the side wall of the sealing plate.

2. The stable multi-functional atomic suction hood according to claim 1, characterized in that: A second air duct is arranged outside the top of the first air duct. An annular mounting plate is connected to the top of the second air duct. Two electric telescopic rods are connected to the top of the annular mounting plate. Pull rods are connected to the bottoms of both electric telescopic rods. The pull rods are connected to the outside of the first air duct.

3. The stable multi-functional atomic suction hood according to claim 2, characterized in that: The front end of the rotating shaft passes through the first air duct through a bearing and is connected to a rotating block.

4. The stable multi-functional atomic suction hood according to claim 3, wherein: Expansion rubber pads are arranged on the inner wall of the second air duct, the outside of the sealing plate, both the left and right sides of the partition plates, and the side walls of the rack teeth.

5. The stable multi-functional atomic suction hood according to claim 4, characterized in that: Two limiting rods are rotatably arranged on the front side of the filter cover.

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