CN218925620U

CN218925620U - Interior moisturizing formula fume chamber

Info

Publication number: CN218925620U
Application number: CN202223005989.4U
Authority: CN
Inventors: 张俊生; 周婧洁; 侯文高; 陆嘉佳; 何伟; 孙成刚
Original assignee: Pal Lab Equipment Co ltd
Current assignee: Pal Lab Equipment Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-28
Anticipated expiration: 2032-11-11

Abstract

The utility model relates to a fume hood and discloses an internal air supplementing type fume hood, which comprises a hood body, wherein a first limit groove is formed in one side of the hood body, a first sliding plate is movably arranged in the first limit groove, the first sliding plate is movably arranged in the hood body, a first toothed plate is fixedly connected to one side of the first sliding plate, a worm wheel is connected to one side of the first toothed plate in a toothed manner, a limit hole is formed in the middle of the worm wheel, a support rod is sleeved in the limit hole, a second sliding plate is fixedly connected to the lower portion of the support rod, a worm is connected to one side of the worm wheel in a toothed manner, and a rotating plate is fixedly connected to the outer side of the worm. The internal air supplementing type ventilating cabinet provided by the utility model is convenient for adjusting the experimental space of the ventilating cabinet, is convenient for collecting dust and impurities entering the air outlet pump during air extraction, and protects the air outlet from entering the dust and impurities when the ventilating cabinet is not used.

Description

Interior moisturizing formula fume chamber

Technical Field

The utility model relates to a fume hood, in particular to an internal air supplementing type fume hood.

Background

Fume hood, a large-scale equipment in laboratory, especially chemistry laboratory. The purpose is to reduce contact between experimenters and harmful gases. The most important of the functions of the fume hood is the exhaust function, and various harmful gases, odor, moisture and inflammable, explosive and corrosive substances are generated during experimental operation in a chemical laboratory. In order to protect the safety of users and prevent the diffusion of pollutants in experiments to the laboratory, a fume hood is used near the pollution source.

The existing fume hood has certain defects when in use, firstly, the size of an experimenter operation space on the fume hood is inconvenient to adjust when the existing fume hood is in use, various different experiments are inconvenient to carry out, secondly, when the existing fume hood is used for exhausting an experiment area, impurity dust and the like in air are often easily pumped into an air pump, the use efficiency of the fume hood is reduced, and finally, the air outlet of the existing fume hood is easy to accumulate dust and impurities when not in use.

Disclosure of Invention

The utility model mainly aims to provide an internal air supplementing type fume hood, which solves the problems that the size of an experimenter operation space on the fume hood is inconvenient to adjust when the existing fume hood is used, various different experiments are inconvenient to carry out, impurity dust and the like in air are easily pumped into an air pump when the existing fume hood is used for pumping air in an experiment area, the use efficiency of the fume hood is reduced, and dust and impurities are easily accumulated when an air outlet of the existing fume hood is not used.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an interior air supplementing type fume chamber, is including the cabinet body, first spacing groove has been seted up to one side of the cabinet body, first limiting groove internalization has first sliding plate, just first sliding plate activity is at the cabinet body, one side fixedly connected with first pinion rack of first sliding plate, one side tooth of first pinion rack has connect the worm wheel, spacing hole has been seted up in the centre of worm wheel, the cover has the bracing piece in the spacing hole, the below fixedly connected with second sliding plate of bracing piece, one side tooth of worm wheel has the worm, the outside fixedly connected with rotor plate of worm, cup jointed the shrouding on the circumference surface of worm, just the below fixedly connected with second sliding plate of shrouding, the top fixedly connected with stopper of first sliding plate, the second sliding plate has been cup jointed to the top of stopper, two second limiting grooves have been seted up to the inboard equidistance fixedly connected with two sliders of first sliding plate, two second limiting grooves have been seted up to the equidistance on the inner wall of the cabinet body, two the slider moves in two second limiting grooves respectively.

Further, the outside fixedly connected with second pinion rack of first sliding plate, the outside tooth of second pinion rack has connect the gear, one side swing joint of gear has the motor, just one side fixed connection of motor the cabinet body.

Further, the movable hole has been seted up to one side of the cabinet body, the downthehole fixedly connected with filter screen of activity, the cabinet body is in the trapezoidal first wind channel of filter screen outside fixedly connected with, the lower extreme one side fixedly connected with second wind channel of first wind channel, the inside bottom fixedly connected with guide block of second wind channel, the material pipe has been seted up to second wind channel in guide block one side top, the second wind channel is in material pipe top fixedly connected with fixed plate, the first spring of fixed plate top fixedly connected with, first spring upper end fixedly connected with arm-tie, fixedly connected with dead lever in the middle of the arm-tie, first fixed orifices has been seted up in the middle of the fixed plate, just the dead lever passes first fixed orifices, the collection box has been cup jointed in the outside of material pipe, the second fixed orifices has been seted up to the top of collection box, the dead lever passes the second fixed orifices.

Further, the gas outlet has been seted up to one side of second sliding plate, the top fixedly connected with bellows of second sliding plate in the gas outlet, the connecting hole has been seted up to the top of bellows, just the connecting hole is passed to the bellows, the upper end fixedly connected with air inlet pump of bellows, the top fixedly connected with intake pipe of air inlet pump, the top fixedly connected with pump of giving vent to anger in second wind channel, the top fixedly connected with outlet duct of air outlet pump.

Further, the second sliding plate is fixedly connected with connecting brackets on two sides of the air outlet, the second springs are fixedly connected with the upper parts of the connecting brackets, the first baffle is fixedly connected with the upper parts of the second springs, and the second sliding plate is fixedly connected with the second baffle on one side of the air outlet.

Further, the middle fixedly connected with operation panel of the cabinet body, the cabinet body is in the equal swing joint of operation panel below both sides have the cabinet door, two the equal swing joint in the outside of cabinet door has the handle.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the size of the experimental space of the fume chamber is conveniently adjusted through the arrangement of the first toothed plate, the motor is started, the second toothed plate is driven by the motor to move through the gear belt, the first sliding plate is driven by the second toothed plate to move, the abutting second sliding plate is driven by the first sliding plate to move upwards, the rotating plate is rotated, the worm is driven by the rotating plate to rotate, the gear is driven by the worm to rotate, and the first toothed plate is connected with one side of the gear in a toothed manner, so that the gear can move along the first toothed plate, the second sliding plate is driven by the gear to move through the supporting rod, and the size of the experimental space of the fume chamber is conveniently adjusted through the arrangement.

2. According to the utility model, through the arrangement of the collecting box, dust and impurities entering the air outlet pump during air extraction are conveniently collected, the air outlet pump is started, air in the experimental space of the ventilation cabinet is pumped by the air outlet pump to enter the first air channel through the filter screen, the air enters the second air channel from the first air channel, the impurity dust in the air falls under the action of gravity after entering the second air channel, the dust and impurities slide into the collecting box after being guided by the guide block in the second air channel, and the pulling plate is pulled upwards until the fixing rod is not inserted into the second fixing hole any more, so that the collecting box can be taken down to clean the dust and impurities in the collecting box, and through the arrangement, the dust and impurities entering the air outlet pump during air extraction are conveniently collected.

3. According to the utility model, through the arrangement of the first baffle bar, the air outlet is protected from entering dust impurities when not in use, the air inlet pump is started, the air is pumped by the air inlet pump to enter the air outlet through the corrugated pipe and the air box, the air is acted by the second spring, the first baffle is abutted against the air outlet, the air can be discharged after pushing the first baffle when passing through the outlet, the air enters the experimental space after being guided by the second baffle, after the air inlet pump is closed, no air pushes the first baffle, the air inlet is also closed by the first baffle, dust impurities in the air cannot enter the air outlet, and through the arrangement, the air outlet is protected from entering the dust impurities when not in use.

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic view of the overall structure of an angle of an internal air-supplementing type ventilating cabinet according to the present utility model.

Fig. 2 is a schematic view of the overall structure of an internal air-supplementing type ventilating cabinet according to another angle of the present utility model.

Fig. 3 is an enlarged schematic view of a part of the structure of a bellows of an internal air-supplementing type fume hood according to the present utility model.

Fig. 4 is an enlarged schematic view of a part of the structure of a guide block of an internal air supplementing type ventilating cabinet according to the present utility model.

Fig. 5 is an enlarged schematic view of a part of the structure of a gear of an internal air-supplementing type ventilating cabinet according to the present utility model.

Fig. 6 is an enlarged schematic view of a part of the structure of a second baffle of the internal air-supplementing type ventilating cabinet according to the present utility model.

In the figure: 1. a cabinet body; 2. a cabinet door; 3. a filter screen; 4. a guide block; 5. a collection box; 6. a first spring; 8. an air outlet pump; 9. an air outlet pipe; 10. a first baffle; 11. a second spring; 12. a bellows; 13. an air inlet pump; 14. an air inlet pipe; 15. a worm; 16. a worm wheel; 17. a first toothed plate; 18. a slide block; 19. a second toothed plate; 20. a gear; 21. a motor; 22. and a second baffle.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-3 and 5, an internal air supplementing type fume chamber comprises a chamber body 1, first spacing groove is provided on one side of the chamber body 1, first sliding plate is movably provided in the first spacing groove, and the first sliding plate is movably provided with a limit block on the chamber body 1, one side of the first sliding plate is fixedly connected with a first toothed plate 17, one side tooth of the first toothed plate 17 is connected with a worm wheel 16, a spacing hole is provided in the middle of the worm wheel 16, a supporting rod is sleeved in the spacing hole, a second sliding plate is fixedly connected with the lower side of the supporting rod, the lower side of the second sliding plate is abutted to the first sliding plate, one side tooth of the worm wheel 16 is connected with a worm 15, the outer side of the worm 15 is fixedly connected with a rotating plate, the circumferential outer surface of the worm 15 is sleeved with a second sliding plate, the lower side of the sealing plate is fixedly connected with a second sliding plate, the upper side of the first sliding plate is fixedly connected with a limit block, the upper side of the limit block is sleeved with a second sliding plate, two sliding blocks 18 are fixedly connected with the inner side of the first sliding plate, two second sliding plates 18 are provided on the inner wall of the chamber body 1, two second sliding plates 18 are sleeved in the spacing hole, two sliding plates 18 are sleeved in the spacing hole, a supporting rod are fixedly connected with a second sliding plate is fixedly connected with a second sliding plate, two sliding plates 21 respectively, two sliding plates are driven by a gear 20, and the two sliding plates are driven by a gear 20 to move along the first sliding plate 20, and the first sliding plate is driven by a gear 20, and the first sliding plate is driven by a small gear 20 to move by a small gear 20, and the first sliding plate through a small gear 19.

As shown in fig. 1-3 and 5, the outer side of the first sliding plate is fixedly connected with a second toothed plate 19, the outer side of the second toothed plate 19 is toothed with a gear 20, one side of the gear 20 is movably connected with a motor 21, one side of the motor 21 is fixedly connected with the cabinet body 1, by adopting the technical scheme, the motor 21 is started to move through the gear 20 with the second toothed plate 19, and the second toothed plate 19 can drive the first sliding plate to move.

As shown in fig. 1-4, one side of the cabinet body 1 is provided with a movable hole, a filter screen 3 is fixedly connected in the movable hole, the cabinet body 1 is fixedly connected with a trapezoid first air duct outside the filter screen 3, one side of the lower end of the first air duct is fixedly connected with a second air duct, the bottom inside the second air duct is fixedly connected with a guide block 4, the second air duct is provided with a discharge pipe above one side of the guide block 4, the second air duct is fixedly connected with a fixed plate above the discharge pipe, a first spring 6 is fixedly connected above the fixed plate, the upper end of the first spring 6 is fixedly connected with a pull plate, a fixed rod is fixedly connected in the middle of the pull plate, the first fixed hole is provided in the middle of the fixed plate, the fixed rod penetrates through the first fixed hole, the outer side of the discharge pipe is sleeved with a collecting box 5, the second fixed orifices has been seted up to the top of collecting box 5, the dead lever passes the second fixed orifices, through adopting above-mentioned technical scheme, start out air pump 8, the air in the experimental space of the pumping fume chamber of air pump 8 gets into first wind channel through filter screen 3, the air gets into the second wind channel by first wind channel, impurity dust in the air receives the gravity effect whereabouts behind getting into the second wind channel, the dust impurity slides in collecting box 5 after the direction of guide block 4 in the second wind channel, upwards the pulling arm-tie, until the dead lever no longer inserts the second fixed orifices, can take off collecting box 5 clear up the dust impurity in the collecting box 5, through such setting, the dust impurity that has made things convenient for getting into out air pump 8 when extracting air is collected.

As shown in fig. 1-5, an air outlet is formed in one side of the second sliding plate, an air box is fixedly connected to the second sliding plate above the air outlet, a corrugated pipe 12 is fixedly connected to the upper side of the air box, a connecting hole is formed in the upper side of the cabinet body 1, the corrugated pipe 12 penetrates through the connecting hole, an air inlet pump 13 is fixedly connected to the upper end of the corrugated pipe 12, an air inlet pipe 14 is fixedly connected to the upper side of the air inlet pump 13, an air outlet pump 8 is fixedly connected to the upper side of the second air channel, an air outlet pipe 9 is fixedly connected to the upper side of the air outlet pump 8, by adopting the technical scheme, air enters the air inlet pump 13 through the air inlet pipe 14, air enters the corrugated pipe 12 from the air inlet pump 13 again, air enters an experiment space through the air box and the air outlet, air in the experiment space is pumped by the air outlet pump 8 enters the air outlet pump 8 through the filter screen 3, air in the experiment space enters the first air channel and the second air outlet pump 8, and air in the experiment space enters the air outlet pipe 9 to be discharged through the air outlet pump 8.

As shown in fig. 1, fig. 3 and fig. 6, the connecting brackets are fixedly connected to the two sides of the air outlet of the second sliding plate, the second springs 11 are fixedly connected to the two connecting brackets, the first baffle 10 is fixedly connected to the two second springs 11, the second baffle 22 is fixedly connected to one side of the air outlet of the second sliding plate, by adopting the technical scheme, the air inlet pump 13 is started, the air inlet pump 13 pumps air to enter the air outlet through the corrugated pipe 12 and the air box, the air is acted by the second springs 11, the first baffle 10 is abutted to the air outlet, the air can be discharged after pushing the first baffle 10 when the air passes through the outlet, and the air is guided to enter the experimental space after the air inlet pump 13 is closed, no air pushes the first baffle 10, the air inlet is also sealed by the first baffle 10, dust impurities in the air cannot enter the air outlet, and through the arrangement, the air outlet is protected from entering the dust impurities when the air outlet is not used.

As shown in fig. 1-2, an operation panel is fixedly connected in the middle of a cabinet body 1, cabinet doors 2 are movably connected to two sides below the operation panel, handles are movably connected to the outer sides of the two cabinet doors 2, and articles can be stored below the cabinet body 1 by opening the cabinet doors 2 through the technical scheme.

It should be noted that, when using, place cabinet body 1 on the horizontal plane, carry out the experiment in the operation board top, when carrying out the experiment, start air inlet pump 13, air gets into air inlet pump 13 by intake pipe 14, air gets into bellows 12 from air inlet pump 13 again, after the air in the bellows 12 gets into bellows, promote the first baffle 10 of air inlet below, first baffle 10 extrusion second spring 11, until after first baffle 10 kept away from the gas outlet, the air is directed through first baffle 10 and second baffle 22 and gets into experimental space, start air outlet pump 8, air in the experimental space is drawn by air outlet pump 8 gets into air outlet pump 8 through filter screen 3 entering first wind channel and second wind channel, the air in the experimental space gets into outlet duct 9 and discharges through air outlet pump 8.

When the size of experimental space needs to be adjusted, the motor 21 is started, the motor 21 is provided with the second toothed plate 19 through the gear 20 to move, the second toothed plate 19 drives the first sliding plate to move, the first sliding plate drives the abutting second sliding plate to move upwards, the rotating plate is rotated, the rotating plate drives the worm 15 to rotate, the worm 15 drives the gear 20 to rotate, the first toothed plate 17 is connected with the first sliding plate because one side of the gear 20 is toothed, the gear 20 can move along the first toothed plate 17, and the gear 20 drives the second sliding plate to move through the supporting rod, so that the size adjustment of the experimental space can be completed.

When the dust and impurity entering the air outlet pump 8 are required to be collected during air extraction, the air outlet pump 8 is started, the air in the experimental space of the air outlet pump 8 pumping fume hood enters the first air channel through the filter screen 3, the air enters the second air channel through the first air channel, impurity dust in the air falls down under the action of gravity after entering the second air channel, the dust and impurity slides into the collecting box 5 after being guided by the guide block 4 in the second air channel, and the pulling plate is pulled upwards until the fixing rod is not inserted into the second fixing hole any more, so that the collecting box 5 can be taken down to clean the dust and impurity in the collecting box 5.

The utility model provides an internal air supplementing type fume hood, which solves the problems that the size of an experimenter operation space on the fume hood is inconvenient to adjust when the existing fume hood is used, various different experiments are inconvenient to carry out, impurity dust and the like in air are easily pumped into an air pump when the existing fume hood is used for pumping air in an experimental area, the use efficiency of the fume hood is reduced, dust and impurities are easily accumulated at an air outlet of the existing fume hood when the existing fume hood is not used, and the internal air supplementing type fume hood is more practical.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An interior moisturizing formula fume chamber, its characterized in that: including the cabinet body (1), first spacing groove has been seted up to one side of the cabinet body (1), first limiting groove internalization has first sliding plate, just first sliding plate activity is at the cabinet body (1), one side fixedly connected with first pinion rack (17) of first sliding plate, one side tooth of first pinion rack (17) has connect worm wheel (16), spacing hole has been seted up in the centre of worm wheel (16), the bracing piece has been connected to the cover in the spacing hole, the below fixedly connected with second sliding plate of bracing piece, just the below of second sliding plate first sliding plate of butt, one side tooth of worm wheel (16) has worm (15), the outside fixedly connected with rotor plate of worm (15), cup jointed the shrouding on the circumference surface of worm (15), just the below fixedly connected with second sliding plate of shrouding, the top fixedly connected with stopper of first sliding plate, the top of stopper is cup jointed second sliding plate inboard, the below of first sliding plate is connected with bracing piece first sliding plate, two equidistant slider (18) have two spacing grooves (18) on two movable sliding blocks respectively.

2. An internal air-supplementing type fume hood according to claim 1, wherein: the outer side of the first sliding plate is fixedly connected with a second toothed plate (19), a gear (20) is connected with the outer side of the second toothed plate (19) in a toothed manner, one side of the gear (20) is movably connected with a motor (21), and one side of the motor (21) is fixedly connected with the cabinet body (1).

3. An internal air-supplementing type fume hood according to claim 2, wherein: the novel intelligent cabinet temperature control device is characterized in that a movable hole is formed in one side of the cabinet body (1), a filter screen (3) is fixedly connected in the movable hole, a trapezoid first air duct is fixedly connected to the outer side of the filter screen (3), a second air duct is fixedly connected to one side of the lower end of the first air duct, a guide block (4) is fixedly connected to the bottom of the second air duct, a discharging pipe is formed in one side upper portion of the guide block (4) in the second air duct, a fixing plate is fixedly connected to the second air duct above the discharging pipe, a first spring (6) is fixedly connected to the upper portion of the fixing plate, a pulling plate is fixedly connected to the middle of the pulling plate, a first fixing hole is formed in the middle of the fixing plate, the fixing rod penetrates through the first fixing hole, a collecting box (5) is sleeved on the outer side of the discharging pipe, and a second fixing hole is formed in the upper portion of the collecting box (5).

4. An internal air-supplementing type fume hood according to claim 3, wherein: the utility model discloses a cabinet, including first sliding plate, second sliding plate, bellows, connecting hole, bellows (12) have been seted up to one side of second sliding plate, the top fixedly connected with bellows of second sliding plate in the gas outlet, connecting hole has been seted up to the top of the cabinet body (1), just bellows (12) pass the connecting hole, the upper end fixedly connected with air inlet pump (13) of bellows (12), the top fixedly connected with intake pipe (14) of air inlet pump (13), the top fixedly connected with air outlet pump (8) of second wind channel, the top fixedly connected with outlet duct (9) of air outlet pump (8).

5. An internal air-supplementing type fume hood according to claim 4, wherein: the second sliding plates are fixedly connected with connecting supports on two sides of the air outlet, the second springs (11) are fixedly connected to the upper sides of the connecting supports, the first baffle (10) is fixedly connected to the upper sides of the second springs (11), and the second sliding plates are fixedly connected with the second baffle (22) on one side of the air outlet.

6. An internal air-supplementing type fume hood according to claim 5, wherein: the novel cabinet is characterized in that an operation plate is fixedly connected in the middle of the cabinet body (1), cabinet doors (2) are movably connected to two sides below the operation plate, and handles are movably connected to the outer sides of the cabinet doors (2).