CN217616701U - Air volume adjusting mechanism of fume chamber - Google Patents
Air volume adjusting mechanism of fume chamber Download PDFInfo
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- CN217616701U CN217616701U CN202221321186.7U CN202221321186U CN217616701U CN 217616701 U CN217616701 U CN 217616701U CN 202221321186 U CN202221321186 U CN 202221321186U CN 217616701 U CN217616701 U CN 217616701U
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Abstract
The utility model discloses an air volume adjusting mechanism of a fume hood, which comprises a hood body, a driving mechanism and a linkage mechanism; the cabinet body: a top cover is arranged on the upper surface of the top cover, a filter box is arranged in a round hole in the middle of the upper surface of the top cover, a vent on the upper surface of the filter box is provided with a vent pipe, transverse slide rails are symmetrically arranged on the lower surface of the top cover, sliding plates are connected between the two longitudinally distributed transverse slide rails in a sliding manner, and rack plates are arranged at the front ends of the sliding plates; a driving mechanism: the driving mechanism is arranged on the right side of the front end of the top cover, and is meshed and connected with the rack plate on the right side; a linkage mechanism: the upper end of the air volume adjusting mechanism is rotatably connected with the front end of the lower surface of the top cover through a bearing, the linkage mechanism is meshed with the driving mechanism, the air volume adjusting mechanism of the ventilation cabinet adjusts the air volume in the ventilation cabinet through automatically adjusting the size of the ventilation opening, and meanwhile, the filter screen is arranged in the ventilation pipe of the device, so that the air in the ventilation cabinet is filtered and discharged, and the filter screen is convenient to replace.
Description
Technical Field
The utility model relates to an air regulation mechanism technical field of fume chamber specifically is an air regulation mechanism of fume chamber.
Background
The fume hood is a device widely used in a laboratory, and the main function of the fume hood is that a cavity which is negative pressure relative to the air pressure outside the fume hood is generated in the fume hood by exhausting through an exhaust fan, so that various toxic gases or smoke generated by an operator in various experiments can be completely exhausted out of a room through a ventilating pipeline, a safe working environment is provided for the operator, the wind speed of a stable and safe window surface is maintained to be closely related to the safety and health of the operator, at present, whether the wind speed of the window surface of the fume hood is constant (0.5 m/s in China and 0.3m/s in Europe and America) is taken as a primary standard condition for judging whether the fume hood is safe in various countries in the world, and if the wind speed is too small, the gas or smoke in the fume hood can not be effectively exhausted; if the wind speed is too high, airflow disorder in the cabinet can be caused, so that partial gas or smoke can escape from the fume hood, normal operation of an experiment can be influenced, and a large amount of indoor air with the temperature adjusted by an air conditioner can be discharged to the outside to cause great consumption and waste.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide an air regulation mechanism of fume chamber, thereby the device adjusts the interior amount of wind of fume chamber through automatically regulated vent size, is provided with the filter screen in the device ventilation pipe simultaneously, filters discharge and filter screen change convenience to the inside air of fume chamber, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: an air volume adjusting mechanism of a fume hood comprises a hood body, a driving mechanism and a linkage mechanism;
the cabinet body: a top cover is arranged on the upper surface of the top cover, a filter box is arranged in a round hole in the middle of the upper surface of the top cover, a vent on the upper surface of the filter box is provided with a vent pipe, transverse slide rails are symmetrically arranged on the lower surface of the top cover, sliding plates are connected between the two longitudinally distributed transverse slide rails in a sliding manner, and rack plates are arranged at the front ends of the sliding plates;
a driving mechanism: the driving mechanism is arranged on the right side of the front end of the top cover, and is meshed and connected with the rack plate on the right side;
a linkage mechanism: the upper end of the air filtering device is rotatably connected with the front end of the lower surface of the top cover through a bearing, the linkage mechanism is meshed with the driving mechanism and is meshed with the rack plate on the left side, the air filtering device adjusts the air volume in the ventilation cabinet through automatically adjusting the size of the ventilation opening, meanwhile, a filter screen is arranged in the ventilation pipe of the air filtering device, the air in the ventilation cabinet is filtered and discharged, and the filter screen is convenient to replace.
Furthermore, still include the singlechip, the singlechip sets up in the front surface of top cap, and the input and the external power source electricity of singlechip are connected, and control is convenient.
Further, actuating mechanism includes first pivot, gear and rotation motor, rotate the motor and set up in the front end right side of top cap, the input that rotates the motor is connected with the output electricity of singlechip, and the output shaft that rotates the motor passes the left vertical round hole of front end of top cap and is equipped with first pivot, and the lateral surface of first pivot is equipped with the gear, and the gear is connected with the rack plate meshing on right side, provides power for adjusting the vent size.
Further, the link gear includes gear, second pivot, sprocket, chain and third pivot, second pivot and third pivot are all rotated with the lower surface front end of top cap through the bearing and are connected, and the lateral surface upper end of second pivot and third pivot all is equipped with the gear, and the lateral surface lower extreme of second pivot and third pivot all is equipped with the sprocket, and two sprockets pass through chain drive and connect, and the left gear of going up is connected with left rack plate meshing, and the last gear on right side is connected with gear engagement for left slide removes.
Furthermore, the inside sliding connection of rose box has the pull board, and the front surface middle part of pull board is equipped with the handle, and it is convenient to change the filter screen.
Furthermore, the inside of pull board is equipped with the filter screen, filters the inside gas of fume chamber.
Further, still include the light, the light sets up respectively in the upper end left and right sides medial surface of the cabinet body, and the input of light is connected with the output electricity of singlechip, provides the illumination for the staff.
Compared with the prior art, the beneficial effects of the utility model are that: this ventilation cabinet's air regulation mechanism has following benefit:
1. when the ventilation cabinet works, gas in the cabinet body is exhausted through the ventilation pipe, at the moment, the single chip microcomputer starts the rotating motor to rotate reversely, the rotating motor drives the hollow gear to rotate through the first rotating shaft, then the gear is meshed with the rack plate to drive the slide plate on the right side to horizontally move left along the transverse slide rail on the right side, meanwhile, the gear is meshed with the upper gear to enable the upper gear and the second rotating shaft in the upper gear to rotate together around the bearing on the upper end of the second rotating shaft, the lower end of the upper gear is meshed with the chain to drive the chain to rotate so that the chain is meshed with the chain wheel, the chain wheel and the third rotating shaft rotate around the bearing on the upper end of the third rotating shaft, the chain wheel is meshed with the rack plate on the left side so that the slide plate on the left side horizontally moves right along the transverse slide rail on the left side, the slide plates on the two ends of the ventilation opening are driven to horizontally move inwards along the slide rail through the linkage mechanism through rotation of the output shaft of the rotating motor, the lower end of the ventilation opening is reduced, the air volume is controlled by the single chip microcomputer so that the slide plates on the two sides of the slide plate horizontally move towards the two ends of the slide rail, the ventilation opening is enlarged through the ventilation opening, and the ventilation opening is automatically adjusted through the automatic adjustment principle, and the ventilation opening, and the ventilation device is convenient to adjust the ventilation opening.
2. The pull board in the rose box is equipped with the filter screen, can filter the inside gas of fume chamber, the air-tight environment, long-time use, the filter screen needs to be changed, push the pull board with its level again after taking out the change filter screen along the inside vertical slide rail level of rose box this moment, it is convenient to change the filter screen, the internal light of cabinet provides the light for the staff who uses the fume chamber simultaneously, the design is humanized, be provided with the filter screen in the device ventilation pipe simultaneously, it is convenient to filter discharge and filter screen change to the inside air of fume chamber.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the bottom view structure of the present invention;
fig. 3 is an enlarged schematic view of the a position of the present invention.
In the figure: the automatic cleaning device comprises a cabinet body 1, a single chip microcomputer 2, a top cover 3, a transverse sliding rail 4, a driving mechanism 5, a first rotating shaft 51, a gear 52, a rotating motor 53, a filter box 6, a linkage mechanism 7, an upper gear 71, a second rotating shaft 72, a sprocket 73, a chain 74, a third rotating shaft 75, a lighting lamp 8, a filter screen 9, a ventilation pipe 10, a drawing plate 11, a handle 12, a sliding plate 13 and a rack plate 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present embodiment provides a technical solution: an air volume adjusting mechanism of a fume hood comprises a hood body 1, a driving mechanism 5 and a linkage mechanism 7;
the cabinet body 1: the upper surface of the top cover is provided with a top cover 3, a round hole in the middle of the upper surface of the top cover 3 is provided with a filter box 6, ventilation pipes 10 are arranged at ventilation openings in the upper surface of the filter box 6, transverse slide rails 4 are symmetrically arranged on the lower surface of the top cover 3, a slide plate 13 is slidably connected between the two longitudinally distributed transverse slide rails 4, rack plates 14 are arranged at the front ends of the slide plates 13, the top cover further comprises a single chip microcomputer 2, the single chip microcomputer 2 is arranged on the front surface of the top cover 3, the input end of the single chip microcomputer 2 is electrically connected with an external power supply, a pull plate 11 is slidably connected inside the filter box 6, a handle 12 is arranged in the middle of the front surface of the pull plate 11, a filter screen 9 and a lighting lamp 8 are arranged inside the left side and the right side of the upper end of the cabinet body 1 respectively, the input end of the illuminating lamp 8 is electrically connected with the output end of the single chip microcomputer 2, when the ventilation cabinet works, gas in the cabinet body 1 is discharged through the ventilation pipe 10, the filter screen 9 is arranged on the pull plate 11 in the filter box 6, the gas in the ventilation cabinet can be filtered, the air environment is protected, the ventilation cabinet can be used for a long time, the filter screen 9 needs to be replaced, at the moment, the pull plate 11 is horizontally pulled out along a longitudinal slide rail in the filter box to replace the filter screen 9, then the filter screen 9 is horizontally pushed in, the filter screen 9 is convenient to replace, meanwhile, the illuminating lamp 8 in the cabinet body 1 provides brightness for workers using the ventilation cabinet, the design is humanized, meanwhile, the filter screen is arranged in the ventilation pipe of the ventilation cabinet, air in the ventilation cabinet is filtered and discharged, and the filter screen is convenient to replace;
the driving mechanism 5: the driving mechanism 5 is meshed with the rack plate 14 on the right side, the driving mechanism 5 comprises a first rotating shaft 51, a gear 52 and a rotating motor 53, the rotating motor 53 is arranged on the right side of the front end of the top cover 3, the input end of the rotating motor 53 is electrically connected with the output end of the single chip microcomputer 2, the output shaft of the rotating motor 53 penetrates through a vertical round hole in the left side of the front end of the top cover 3 and is provided with the first rotating shaft 51, the gear 52 is arranged on the outer side surface of the first rotating shaft 51 and meshed with the rack plate 14 on the right side, the rotating motor 53 is started to rotate reversely by the single chip microcomputer 2 at the moment, the rotating motor 53 drives the hollow gear 52 to rotate through the first rotating shaft 51, and then the gear 52 is meshed with the rack plate 14 to drive the sliding plate 13 on the right side to horizontally move left along the transverse sliding rail 4 on the right side;
the linkage mechanism 7: the upper end of the upper linkage mechanism is rotatably connected with the front end of the lower surface of the top cover 3 through a bearing, the linkage mechanism 7 is connected with the driving mechanism 5 in a meshed manner, the linkage mechanism 7 is connected with the rack plate 14 on the left side in a meshed manner, the linkage mechanism 7 comprises an upper gear 71, a second rotating shaft 72, chain wheels 73, chains 74 and a third rotating shaft 75, the second rotating shaft 72 and the third rotating shaft 75 are both rotatably connected with the front end of the lower surface of the top cover 3 through bearings, the upper gear 71 is arranged at the upper end of the outer side surface of the second rotating shaft 72 and the outer end of the outer side surface of the third rotating shaft 75 are both provided with chain wheels 73, the two chain wheels 73 are in transmission connection through the chains 74, the upper gear 71 on the left side is in meshed connection with the rack plate 14 on the left side, and the upper gear 71 on the right side is in meshed connection with the gear 52, meanwhile, the gear 52 is meshed with the upper gear 71, so that the upper gear 71 and the second rotating shaft 72 inside the upper gear rotate around the upper end bearing of the second rotating shaft 72, the lower end of the upper gear 71 is meshed with the chain 74 to drive the chain 74 to rotate, so that the chain 74 is meshed with the chain wheel 73, the sprocket 73 and the third rotating shaft 75 are rotated around the upper end bearing of the third rotating shaft 75, the sprocket 73 is engaged with the rack plate 14 on the left side, so that the slide plate 13 on the left side moves horizontally to the right along the transverse slide rail 4 on the left side, thereby the output shaft of the rotating motor 53 rotates to drive the sliding plates 12 at the two ends to translate along the sliding rails 4 through the linkage mechanism 7, the vent at the lower end of the ventilation pipe 10 becomes small, the air volume is reduced, thereby make singlechip 2 control rotate motor 53 corotation through the same theory of operation make the slide 12 of both sides along the 4 levels of slide rail to the both ends translations, the lower extreme vent grow of ventilation pipe 10, can automatically regulated vent size, convenient to use, thereby the device adjusts the interior amount of wind of fume chamber through automatically regulated vent size.
The utility model provides a pair of air volume adjusting mechanism of fume chamber's theory of operation as follows: when the ventilation cabinet works, air in the cabinet body 1 is exhausted through the ventilation pipe 10, at the moment, the single chip microcomputer 2 starts the rotating motor 53 to rotate reversely, the rotating motor 53 drives the hollow gear 52 to rotate through the first rotating shaft 51, then the gear 52 drives the sliding plate 13 on the right side to move horizontally and leftwards along the transverse sliding rail 4 on the right side through meshed connection with the rack plate 14, meanwhile, the gear 52 is meshed connection with the upper gear 71 to enable the upper gear 71 and the second rotating shaft 72 inside the upper gear to rotate around the upper end bearing of the second rotating shaft 72 together, the lower end of the upper gear 71 drives the chain 74 to rotate through meshed connection with the chain 74, so that the chain 74 is meshed and connected with the chain wheel 73, the chain wheel 73 and the third rotating shaft 75 rotate around the upper end bearing of the third rotating shaft 75, the chain wheel 73 is meshed and connected with the rack plate 14 on the left side, so that the sliding plate 13 on the left side moves horizontally and rightwards along the transverse sliding rail 4 on the left side, thereby, the output shaft of the rotating motor 53 rotates and drives the sliding plates 12 at the two ends to translate along the sliding rails 4 through the linkage mechanism 7, the vent at the lower end of the ventilation pipe 10 becomes small, the air volume is reduced, the singlechip 2 controls the rotating motor 53 to rotate positively through the same working principle, so that the sliding plates 12 at the two sides translate along the sliding rails 4 horizontally, the vent at the lower end of the ventilation pipe 10 becomes large, the size of the vent can be automatically adjusted, the ventilation pipe is convenient to use, the filter screen 9 is arranged on the pull plate 11 in the filter box 6, the air in the ventilation cabinet can be filtered, the air environment is protected, the filter screen 9 is used for a long time, the filter screen 9 needs to be replaced, at the moment, the pull plate 11 is horizontally drawn out along the longitudinal sliding rails in the filter box to replace the filter screen 9 and then is horizontally pushed in, the filter screen 9 is convenient to replace, and meanwhile, the illuminating lamp 8 in the cabinet body 1 provides light for workers using the ventilation cabinet, the design is humanized.
It should be noted that the single chip microcomputer 2 disclosed in the above embodiments may employ S7-200, the rotating motor 53 may employ Y80M1-2, and the single chip microcomputer 2 controls the rotating motor 53 and the illuminating lamp 8 to operate by methods commonly used in the prior art.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an air regulation mechanism of fume chamber which characterized in that: comprises a cabinet body (1), a driving mechanism (5) and a linkage mechanism (7);
cabinet (1): a top cover (3) is arranged on the upper surface of the top cover, a filter box (6) is arranged in a round hole in the middle of the upper surface of the top cover (3), a ventilation pipe (10) is arranged at a ventilation opening in the upper surface of the filter box (6), transverse slide rails (4) are symmetrically arranged on the lower surface of the top cover (3), a sliding plate (13) is connected between the two longitudinally distributed transverse slide rails (4) in a sliding manner, and a rack plate (14) is arranged at the front end of each sliding plate (13);
drive mechanism (5): the driving mechanism is arranged on the right side of the front end of the top cover (3), and the driving mechanism (5) is meshed and connected with a rack plate (14) on the right side;
linkage mechanism (7): the upper end of the upper cover is rotatably connected with the front end of the lower surface of the top cover (3) through a bearing, the linkage mechanism (7) is meshed with the driving mechanism (5), and the linkage mechanism (7) is meshed with the rack plate (14) on the left side.
2. The air volume adjusting mechanism of the fume hood according to claim 1, characterized in that: the automatic control device is characterized by further comprising a single chip microcomputer (2), wherein the single chip microcomputer (2) is arranged on the front surface of the top cover (3), and the input end of the single chip microcomputer (2) is electrically connected with an external power supply.
3. The air volume adjusting mechanism of the fume hood according to claim 2, characterized in that: actuating mechanism (5) include first pivot (51), gear (52) and rotate motor (53), rotate motor (53) and set up in the front end right side of top cap (3), the input that rotates motor (53) is connected with the output electricity of singlechip (2), the output shaft that rotates motor (53) passes the left vertical round hole of front end of top cap (3) and is equipped with first pivot (51), the lateral surface of first pivot (51) is equipped with gear (52), gear (52) are connected with rack plate (14) meshing on right side.
4. The air volume adjusting mechanism of the fume hood according to claim 3, characterized in that: link gear (7) include gear (71), second pivot (72), sprocket (73), chain (74) and third pivot (75), second pivot (72) and third pivot (75) all rotate with the lower surface front end of top cap (3) through the bearing and are connected, second pivot (72) all are equipped with gear (71) with the lateral surface upper end of third pivot (75), the lateral surface lower extreme of second pivot (72) and third pivot (75) all is equipped with sprocket (73), two sprocket (73) are connected through chain (74) transmission, left gear (71) and left rack plate (14) meshing connection, last gear (71) on right side and gear (52) meshing connection.
5. The air volume adjusting mechanism of the fume hood according to claim 1, characterized in that: the inside sliding connection of rose box (6) has pull board (11), and the front surface middle part of pull board (11) is equipped with handle (12).
6. The air volume adjusting mechanism of the fume hood according to claim 5, characterized in that: a filter screen (9) is arranged in the drawing plate (11).
7. The air volume adjusting mechanism of the fume hood according to claim 2, characterized in that: still include light (8), light (8) set up respectively in the upper end left and right sides medial surface of the cabinet body (1), and the input of light (8) is connected with the output electricity of singlechip (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221321186.7U CN217616701U (en) | 2022-05-27 | 2022-05-27 | Air volume adjusting mechanism of fume chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221321186.7U CN217616701U (en) | 2022-05-27 | 2022-05-27 | Air volume adjusting mechanism of fume chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217616701U true CN217616701U (en) | 2022-10-21 |
Family
ID=83621059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221321186.7U Active CN217616701U (en) | 2022-05-27 | 2022-05-27 | Air volume adjusting mechanism of fume chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217616701U (en) |
-
2022
- 2022-05-27 CN CN202221321186.7U patent/CN217616701U/en active Active
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