High-adaptability multi-fan ventilation cabinet

Abstract

The utility model relates to the technical field of ventilation cabinets, and discloses a strong-adaptability multi-fan ventilation cabinet which comprises a ventilation cabinet body, a plurality of flow guide pipes are fixedly connected to the inner wall of the ventilation cabinet body, an air suction plate is fixedly connected to the front ends of the flow guide pipes, and a ventilation pipe is fixedly connected to the inner wall of the rear end of the ventilation cabinet body. A first fan is fixedly connected to the inner wall of the right end of the ventilation pipe, a plurality of connecting pipes are fixedly connected to the bottom end of the ventilation pipe, the other ends of the connecting pipes are fixedly connected to the rear end of a flow guide pipe, an adjusting assembly is arranged on the inner wall of the front end of the flow guide pipe, and an air blowing assembly is arranged on the inner wall of the bottom end of the ventilation cabinet body. A dismounting assembly is arranged on the right inner wall of the rear end of the ventilation pipe. According to the utility model, the plurality of flow guide pipes are arranged and are matched with the air suction plate and the adjusting assembly, so that when the device is used, the air suction amount of different positions of the flow guide pipes can be adjusted according to different positions of different experiments, and the suction efficiency of gas or smoke generated by the experiments is improved.

Description

Technical Field

[0001] This utility model relates to the field of fume hood technology, and in particular to a highly adaptable multi-fan fume hood. Background Technology

[0002] A fume hood is a laboratory safety device primarily used to capture, control, and remove harmful gases, vapors, dust, and other contaminants generated during experiments. It is an important tool for protecting laboratory workers from hazardous substances and also for protecting experimental samples from external contamination.

[0003] A search revealed a multifunctional laboratory fume hood (publication number CN213826332U) that facilitates cleaning and disinfection by saving labor, improves cleaning and disinfection efficiency, increases automation, and enhances practicality. The fume hood includes a fume hood, an isolation panel, two sets of doors, a glass sliding door, an exhaust fan mounting bracket, an exhaust fan, a disinfectant absorber, spray pipes, and a drying device. The fume hood has internal chambers. The isolation panel is fixedly installed inside the fume hood chambers, dividing the interior into upper and lower chambers. Front openings connect the upper and lower chambers. Two sets of doors are symmetrically hinged at the lower front opening. The glass sliding door is slidably installed at the upper front opening. An exhaust port is located at the top right end of the fume hood, connecting to the chamber. The exhaust fan mounting bracket is fixedly installed at the exhaust port, and the exhaust fan is installed within the bracket. The disinfectant absorber is fixedly installed at the left end of the fume hood.

[0004] Based on the aforementioned patent, after completing the experiment in the upper chamber of the fume hood, the experimental apparatus is stored in the lower chamber of the fume hood. Then, the disinfectant extractor is activated in conjunction with the extraction pipe, delivery pipe, and spray pipe to atomize and spray the disinfectant into the upper chamber of the fume hood through multiple sets of atomizing sprayers for disinfection and cleaning. Afterward, the drying device is activated to dry the interior. This method saves manpower for cleaning and disinfection, improves cleaning and disinfection efficiency, increases automation, and enhances practicality. However, when researchers conduct different chemical experiments inside the fume hood, the positions of the gases or fumes produced by the experiments vary depending on the experimental location. When the fan draws in the gases or fumes, it is necessary to draw in the air and gases / fumes inside the fume hood. Since the proportion of gases or fumes in the drawn-in air is relatively small, the fume hood's ventilation efficiency is low.

[0005] In response to this technical problem, this application proposes a highly adaptable multi-fan fume hood. Utility Model Content

[0006] The utility model discloses a strong adaptability multi-fan ventilation cabinet which is provided to solve the problems existing in the prior art.

[0007] To achieve the above object, the utility model provides the following technical scheme.

[0008] A strong adaptability multi-fan ventilation cabinet, including ventilation cabinet body, the ventilation cabinet body inner wall is fixedly connected with a plurality of guide tubes, the guide tube front end is fixedly connected with the air intake plate, the ventilation cabinet body rear end inner wall is fixedly connected with the ventilation pipe, the ventilation pipe right -hand member inner wall is fixedly connected with first fan, the ventilation pipe bottom is fixedly connected with a plurality of connecting pipes, the connecting pipe other end is fixedly connected on the guide tube's rear end, the guide tube front end inner wall is provided with adjusting assembly, the ventilation cabinet body bottom is provided with the air -blowing subassembly, the ventilation pipe rear end right side inner wall is provided with the dismounting subassembly.

[0009] Further, the adjusting assembly includes annular adjusting plate slidingly connected to the inner wall of the front end of the guide tube, the right end of the annular adjusting plate is fixedly connected with a pull plate, the inner wall of the right end of the annular adjusting plate is fixedly connected with a slide rod, the outer wall of the slide rod is slidingly connected with a pressing plate, the top end of the pressing plate is fixedly connected with a fixed rod, and the pressing plate and the inner wall of the annular adjusting plate are connected through a first spring.

[0010] Further, a plurality of fixing holes are formed in the right end inner wall of the guide tube, and the fixing holes correspond to the fixed rods.

[0011] Further, one end of the first spring is connected with the pressing plate, and the other end of the first spring is connected with the inner wall of the annular adjusting plate.

[0012] Further, the air -blowing subassembly includes an air outlet plate fixedly connected to the inner wall of the bottom end of the ventilation cabinet body, the bottom end of the air outlet plate is fixedly connected with a wind collecting funnel, the inner wall of the bottom end of the wind collecting funnel is fixedly connected with a second fan, and the bottom end of the ventilation cabinet body is provided with air supplementing openings on the left and right sides.

[0013] Further, a connecting plate is arranged on the right side of the rear end of the ventilation pipe, filter plates are fixedly connected to the front end of the connecting plate on both sides, and a handle is fixedly connected to the rear end of the connecting plate.

[0014] Further, the dismounting assembly comprises a rotating rod rotatably connected to the inner wall of the right side of the rear end of the ventilation pipe, a gear fixedly connected to the outer wall of the rotating rod, a knob fixedly connected to the rear end of the rotating rod, a toothed plate slidably connected to the inner wall of the ventilation pipe, the gear being engaged with the toothed plate, a fixed groove being formed in the left end of the connecting plate and corresponding to the toothed plate, and the toothed plate being connected to the inner wall of the ventilation pipe through a second spring.

[0015] Further, one end of the second spring is connected to the toothed plate, and the other end of the second spring is connected to the inner wall of the ventilation pipe.

[0016] The utility model has the advantages of the following:

[0017] 1、 the utility model discloses a plurality of flow guide pipes are set up, cooperate with the air suction plate and the adjusting assembly, so that the device can adjust the air extraction amount of different flow guide pipe positions according to the different experimental positions, improve the suction efficiency of the gas or smoke generated by the experiment, and realize this effect for different experiments, and have high adaptability, a plurality of fans are set up, which facilitates blowing the inside of the fume hood body, cooperates with the air supplementing opening, speeds up the air flow in the fume hood body, and further improves the suction efficiency.

[0018] 2、 the utility model discloses a dismounting assembly is set up, which facilitates quick dismounting of the connecting plate, facilitates replacement or cleaning of the filter plate, and improves the practicality of the device. DRAWINGS

[0019] Figure 1 A strong adaptability multi-fan fume hood is provided.

[0020] Figure 2 A strong adaptability multi-fan fume hood is provided.

[0021] Figure 3 A strong adaptability multi-fan fume hood is provided.

[0022] Figure 4 A strong adaptability multi-fan fume hood is provided.

[0023] Figure 5 A strong adaptability multi-fan fume hood is provided.

[0024] LEGEND:

[0025] 1, fume hood body; 2, flow guide pipe; 3, air suction plate; 4, ventilation pipe; 5, first fan; 6, connecting pipe; 7, annular adjusting plate; 8, pull plate; 9, sliding rod; 10, pressing plate; 11, fixed rod; 12, fixed hole; 13, first spring; 14, air outlet plate; 15, air supplementing opening; 16, air collecting hopper; 17, second fan; 18, connecting plate; 19, filter plate; 20, handle; 21, rotating rod; 22, gear; 23, knob; 24, toothed plate; 25, second spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Referring to Figures 2-4 An embodiment provided by the utility model: a strong adaptability multi-fan fume hood, including fume hood body 1, fume hood body 1 inner wall fixedly connected with multiple flow guide pipes 2, flow guide pipe 2 front end fixedly connected with air suction plate 3, fume hood body 1 rear end inner wall fixedly connected with ventilation pipe 4, ventilation pipe 4 right end inner wall fixedly connected with first fan 5, ventilation pipe 4 bottom end fixedly connected with multiple connecting pipes 6, connecting pipe 6 other end fixedly connected on the rear end of flow guide pipe 2, flow guide pipe 2 front end inner wall slidingly connected with annular adjusting plate 7, annular adjusting plate 7 right end fixedly connected with pull plate 8, annular adjusting plate 7 right end inner wall fixedly connected with sliding rod 9, sliding rod 9 outer wall slidingly connected with pressing plate 10, pressing plate 10 top end fixedly connected with fixed rod 11, pressing plate 10 and annular adjusting plate 7 inner wall are connected through first spring 13, flow guide pipe 2 right end inner wall is provided with multiple fixed holes 12, fixed hole 12 corresponds with fixed rod 11, one end of first spring 13 is connected with pressing plate 10, the other end of first spring 13 is connected with annular adjusting plate 7 inner wall, fume hood body 1 bottom end inner wall fixedly connected with air outlet plate 14, air outlet plate 14 bottom end fixedly connected with air collecting hopper 16, air collecting hopper 16 bottom end inner wall fixedly connected with second fan 17, fume hood body 1 bottom end left and right sides are provided with air supplementing opening 15;

[0028] Specifically, when different experiments are conducted at different positions inside the fume hood body 1, the pressing plate 10 on the front side of the experimental diversion pipe 2 is pressed to extrude the first spring 13 and drive the fixed rod 11 to move out of the fixed hole 12. The ring-shaped adjusting plate 7 is slid along the inner wall of the diversion pipe 2 by pulling the pull plate 8 to adjust its position. After completion, the pull plate 8 is released, and the elastic force of the first spring 13 resets the pressing plate 10 and the fixed rod 11 and clamps them into the fixed hole 12, fixing the ring-shaped adjusting plate 7, which facilitates the adjustment of the position of the air suction plate 3 and improves the air suction capacity of the diversion pipe 2. Furthermore, the air suction capacity of the diversion pipe 2 away from the experiment can be reduced, improving the air extraction efficiency of the fume hood. By starting the second fan 17, the second fan 17 is driven to work, and the second fan 17 blows air into the fume hood body 1 through the air collecting hopper 16 and the air outlet plate 14, thereby forming an air circulation in the fume hood body 1, accelerating the movement of harmful gases, vapors or dust generated by the experiment to the air suction plate 3. At the same time, the first fan 5 cooperates with the diversion pipe 2 through the ventilation pipe 4 and the connecting pipe 6 to suck the harmful gases, vapors or dust into the ventilation pipe 4 and process them through the filter plate 19, achieving efficient removal.

[0029] With reference to Figure 1 and Figure 5 , the left end of the connecting plate 18 is provided with a fixed slot corresponding to the toothed plate 24, and the toothed plate 24 is connected between the inner wall of the ventilation pipe 4 and the connecting plate 18 through a second spring 25, one end of the second spring 25 being connected to the toothed plate 24 and the other end being connected to the inner wall of the ventilation pipe 4;

[0030] Specifically, in the case of needing to replace the filter plate 19, the worker can rotate the knob 23. The rotation of the knob 23 drives the rotating rod 21, and then the gear 22 rotates. The rotation of the gear 22 drives the toothed plate 24 to move to the left, extruding the second spring 25, so that the toothed plate 24 is separated from the fixed slot at the left end of the connecting plate 18. At this time, by pulling the handle 20, the connecting plate 18 together with the filter plate 19 can be easily taken out from the rear right side of the ventilation pipe 4. Subsequently, the connecting plate 18 can be fixed again by the elastic force of the second spring 25. This process is simple to operate and greatly improves the efficiency of disassembly.

[0031] Working principle: when experiments are carried out at different positions inside the fume hood body 1, the push plate 10 on the front side of the experiment is pressed, the push plate 10 is moved and pressed, the first spring 13 is pressed, the fixed rod 11 is moved, the fixed rod 11 is moved out of the corresponding fixed hole 12, the pull plate 8 is pulled, the ring-shaped adjusting plate 7 is slid in the inner wall of the flow guide pipe 2, the position of the ring-shaped adjusting plate 7 can be adjusted according to the experimental position, after the adjustment is completed, the pull plate 8 is released, the push plate 10 is moved by the elastic force of the first spring 13, the fixed rod 11 is moved and clamped into the corresponding fixed hole 12, the position of the ring-shaped adjusting plate 7 is fixed, so as to facilitate the adjustment of the position of the suction plate 3, and then the suction capacity of the flow guide pipe 2 is increased, further, the suction capacity of the flow guide pipe 2 far away from the experiment can be reduced, the efficiency of the fume hood is improved, when the fume hood needs to be disassembled, repaired or replaced, the worker can rotate the knob 23, the rotating rod 21 is rotated, the gear 22 is rotated, the tooth plate 24 is moved to the left, the second spring 25 is pressed, the tooth plate 24 is moved out of the fixed groove at the left end of the connecting plate 18, the handle 20 is pulled out of the connecting plate 18 and the filter plate 19 from the right end of the ventilation pipe 4, and the connecting plate 18 can be fixed again by the elastic force of the second spring 25, the operation is simple and convenient, and the disassembly efficiency is improved.

[0032] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A strongly adaptive multi-fan fume hood, characterized by: The utility model provides a fume hood, including fume hood body (1), a plurality of flow guide pipes (2) are fixedly connected in the inner wall of fume hood body (1), the front end of flow guide pipe (2) is fixedly connected with the air suction plate (3), the rear end inner wall of fume hood body (1) is fixedly connected with the ventilation pipe (4), the right end inner wall of ventilation pipe (4) is fixedly connected with first fan (5), a plurality of connecting pipes (6) are fixedly connected in the bottom end of ventilation pipe (4), the other end of connecting pipe (6) is fixedly connected on the rear end of flow guide pipe (2), the front end inner wall of flow guide pipe (2) is provided with adjusting assembly, the bottom end inner wall of fume hood body (1) is provided with blowing assembly, the rear end right side inner wall of ventilation pipe (4) is provided with dismounting assembly.

2. A strong adaptive multi-fan fume hood according to claim 1, characterized in that: The adjusting assembly includes the annular adjusting plate (7) slidingly connected to the front end inner wall of the flow guide pipe (2), the pull plate (8) fixedly connected to the right end of the annular adjusting plate (7), the slide rod (9) fixedly connected to the right end inner wall of the annular adjusting plate (7), the press plate (10) slidingly connected to the outer wall of the slide rod (9), the fixed rod (11) fixedly connected to the top end of the press plate (10), and the press plate (10) connected to the inner wall of the annular adjusting plate (7) through the first spring (13).

3. A strong adaptive multi-fan fume hood according to claim 2, wherein: The right end inner wall of the flow guide pipe (2) is provided with a plurality of fixing holes (12) corresponding to the fixed rod (11).

4. A strong adaptive multi-fan fume hood according to claim 2, wherein: One end of the first spring (13) is connected to the press plate (10), and the other end of the first spring (13) is connected to the inner wall of the annular adjusting plate (7).

5. A strong adaptive multi-fan fume hood according to claim 1, wherein: The blowing assembly includes the air outlet plate (14) fixedly connected to the bottom end inner wall of the fume hood body (1), the air collecting funnel (16) fixedly connected to the bottom end of the air outlet plate (14), the second fan (17) fixedly connected to the bottom end inner wall of the air collecting funnel (16), and the air supplementing openings (15) formed in the bottom end left and right sides of the fume hood body (1).

6. A strong adaptive multi-fan fume hood according to claim 1, wherein: The right side of the rear end of the ventilation pipe (4) is provided with the connecting plate (18), the left and right sides of the front end of the connecting plate (18) are fixedly connected with the filter plates (19), and the rear end of the connecting plate (18) is fixedly connected with the handle (20).

7. A strong adaptive multi-fan fume hood according to claim 6, wherein: The dismounting assembly includes the rotating rod (21) rotatably connected to the right side inner wall of the rear end of the ventilation pipe (4), the gear (22) fixedly connected to the outer wall of the rotating rod (21), the knob (23) fixedly connected to the rear end of the rotating rod (21), the toothed plate (24) slidingly connected to the inner wall of the ventilation pipe (4), the gear (22) engaged with the toothed plate (24), the fixed groove formed in the left end of the connecting plate (18) corresponding to the toothed plate (24), and the toothed plate (24) connected to the inner wall of the ventilation pipe (4) through the second spring (25).

8. A strong adaptive multi-fan fume hood according to claim 7, wherein: One end of the second spring (25) is connected to the toothed plate (24), and the other end of the second spring (25) is connected to the inner wall of the ventilation pipe (4).

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