CN110449436A - A kind of experimental laboratory air exhausting device - Google Patents
A kind of experimental laboratory air exhausting device Download PDFInfo
- Publication number
- CN110449436A CN110449436A CN201910784733.1A CN201910784733A CN110449436A CN 110449436 A CN110449436 A CN 110449436A CN 201910784733 A CN201910784733 A CN 201910784733A CN 110449436 A CN110449436 A CN 110449436A
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- shaft
- gear
- cabinet body
- mounting
- ventilation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ventilation (AREA)
Abstract
The present invention relates to ventilator for laboratory technical fields, specifically, it is related to a kind of experimental laboratory air exhausting device, it include ventilation cabinet body, the centre of the ventilation cabinet body is provided with workbench, sink and tap are provided on workbench, the front end of workbench is provided with sealed glass door, ventilation cabinet body top is provided with air draft component, the air draft component includes air draft mechanism and the ventilation duct for being connected to air draft mechanism upper end, the limitation component of limitation ventilation quantity is additionally provided on ventilation duct, the two sides on ventilation cabinet body top are provided with mounting groove, the lifting device of driving sealed glass door lifting is provided in mounting groove, the lower end of air draft component is detachably equipped with filter screen, the cleaning device of cleaning filter screen is installed above workbench, the bottom of ventilation cabinet body is additionally provided with multiple walking components, the walking component includes telescopic device and installation Idler wheel on telescopic device output end.
Description
Technical field
The present invention relates to ventilator for laboratory technical fields, and in particular, to a kind of experimental laboratory air exhausting device.
Background technique
Vent cabinet is an indispensable component part in laboratory ventilation design.In order to make laboratory worker not
Suck or swallow some chemical substances and organism toxic, can causing a disease or toxicity is unknown, should have in laboratory it is good
Ventilation.For the absorption for preventing some steams, gas and particle (smog, coal smoke, dust and aerosol), polluter must use ventilation
Cabinet, ventilator cowling or the method for local ventilation remove.
It is most importantly degassing function in the function of vent cabinet, in chemical laboratory, when experimental implementation, which generates, various to be had
Evil gas, foul smell, moisture and inflammable, explosive, corrosive substance prevent the dirt in experiment to protect the safety of user
It contaminates substance to spread to laboratory, vent cabinet is used near pollution sources, previous vent cabinet is less using number of units, is only especially having
It is used in the experiment of evil and dangerous gas and the big calorimetric of generation.Vent cabinet only undertakes the miscellaneous function of experimental bench.In view of changing
Kind experimental situation, the experiment carried out on experimental bench is gradually transferred in vent cabinet, most suitable this requires to have in vent cabinet
In the function that equipment uses.The laboratory especially created mostly has required air-conditioning, therefore in the concept phase of building
It will be by the plan for being included in air-conditioning system using number of units of vent cabinet.Due to vent cabinet occupy in Biochemical Lab it is extremely important
Position improve working efficiency etc. from improving laboratory environment, improving labour health condition and consider, the use of vent cabinet
Number of units increases by leaps and bounds.Consequent is ventilation shaft, and piping, wiring, air draft etc. all become the important class of lab construction
Topic.
So needing to design a kind of vent cabinet can be convenient movement, ventilation size is adjusted, and can be under strainer filtering
Dirt handled in time, keep the cleaning of whole device.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of experimental laboratory air exhausting device, including ventilation cabinet body, the ventilation
The centre of interior of the cabinet is provided with workbench, and sink and tap are provided on workbench, and the front end of workbench is provided with sealing
Glass door, ventilation cabinet body top are provided with air draft component, and the air draft component includes air draft mechanism and is connected to air draft mechanism
The ventilation duct of upper end, air draft mechanism include fixed round frame, the 5th motor and exhaust fan, and fixed round frame is mounted on ventilation cabinet body
Interior, the 5th motor is mounted in fixed round frame, and exhaust fan is fixedly connected with the output end of the 5th motor, is additionally provided on ventilation duct
The limitation component of ventilation quantity is limited, the two sides on ventilation cabinet body top are provided with mounting groove, and driving sealing glass is provided in mounting groove
The lifting device of glass door lifting, the lower end of air draft component is detachably equipped with filter screen, is equipped with and cleaned above workbench
The cleaning device of strainer, the bottom for cabinet body of divulging information are additionally provided with multiple walking components, and the walking component includes telescopic device
With the idler wheel being mounted on telescopic device output end, bottom of cabinet bulk of divulging information is additionally provided with the lifting body for promoting whole device, leads to
It is located at below workbench on wind cabinet body and is additionally provided with multiple lockers.
Further, the sealed glass door is slidably connected at the front end of ventilation cabinet body, and the two sides of sealed glass door are solid
Dingan County is equipped with rack gear, and the lifting device includes driving assembly, the first mounting base, first rotating shaft and first gear, the first peace
It fills seat to be arranged in mounting groove, first rotating shaft trunnion axis connects in the first mounting base, and the extension side of the axis of first rotating shaft
To with ventilation the wide extending direction of cabinet body it is consistent, first gear is fixedly mounted on the end of first rotating shaft, and first gear
Connection is engaged with rack, driving assembly is arranged in mounting groove, and the output end of driving assembly is connect with first rotating shaft.
Further, the driving component includes the second mounting base, the second shaft, the first idler wheel and the second idler wheel, institute
The side that first rotating shaft is arranged in the second mounting base is stated, the second shaft trunnion axis connects in the second mounting base, and the second shaft
It being arranged in parallel with first rotating shaft, the first idler wheel is fixedly mounted in first rotating shaft, and the second idler wheel is fixedly mounted in the second shaft,
First idler wheel and the second idler wheel are sequentially connected by belt, and the driving of driving the second shaft rotation is additionally provided in the mounting groove
Mechanism.
Further, the driving mechanism includes first motor, threaded rod and the third being symmetrically mounted in mounting groove
Mounting base, threaded rod axis connect in third mounting base, and first motor is mounted in third mounting base, and one end of threaded rod with
The output end of first motor is fixedly connected, and the end of the second shaft is additionally provided with second gear, the second gear and threaded rod
Engagement connection.
Further, the cleaning device includes mounting rack, third shaft, the second motor and is symmetrically mounted on workbench
The motorized rails on top slidably connect sliding block on motorized rails, and mounting rack is mounted on sliding block, and third shaft axis, which connects, to be installed
On frame, the second motor is mounted on mounting rack, and one end of third shaft is fixedly connected with the output end of the second motor, described
Multiple hairbrush are fixedly installed in third shaft.
Further, the third shaft is respectively arranged with mounting ring, the mounting ring packet close to the position of both side ends
Include, fan blade axle sleeve and clamping ring, the fan blade axle sleeve and the third shaft are clamped, the fan blade axle sleeve and the clamping ring it
Between be connected by flabellum, be connected between two clamping rings by volute wall flexible, on the outside of the volute wall
Be embedded with fixed cylinder, be embedded with bristle grafting block in the fixed cylinder, the bristle grafting block by the first spring with it is described solid
The bottom of safety barrel elastic connection, the bristle grafting block is connect by the way that bracing wire is vertical with the third shaft,
The outer sheath of the third shaft is equipped with second spring, and the outside of second spring connects with the volute wall inner wall
Touching,
One end of the third shaft is fixedly connected with the output end of the second motor, and the third shaft other end, which is provided with, to be turned
Dynamic slot and center slot, and be fixed on mounting rack by end cap, end cap one end is located in rotation slot, and slides and connect with rotation slot
It connects, spacer and locating shaft is equipped in the end cap, the spacer is slidably socketed on the outside of locating shaft, and on the outside of spacer and in end cap
Wall is slidably connected, and locating shaft one end sliding runs through end cap, and other end outer wall center slot inner wall is slidably connected,
The locating shaft is provided with annular groove far from center slot one end, and baffle ring is fixed in end cap, the baffle ring and ring
The clamping of shape slot.
Further, the undertaking box for accepting dirt is also detachably installed on the mounting rack.
Further, the limitation component includes rotating mechanism, and the output end of rotating mechanism extends in ventilation duct, is turned
The output end of motivation structure is equipped with circular confinement plate, and the rotating mechanism includes the 4th mounting base, the 4th shaft, third tooth
Wheel, the 5th mounting base and third motor, the 4th mounting base and the 5th mounting base are installed in the top of ventilation cabinet body, the 4th shaft
Trunnion axis connects in the 4th mounting base, and one end of the 4th shaft extends in ventilation duct, and confinement plate is fixedly mounted on the 4th
Shaft is located at the end in ventilation duct, and third motor is fixedly mounted in the 5th mounting base, and the 4th gear is defeated with third motor
Outlet is fixedly connected, and third gear is also fixedly installed in the 4th shaft, and the third gear engages connection with the 4th gear.
Further, the bottom of the ventilation cabinet body is provided with multiple fixing grooves, and telescopic device is arranged in fixing groove, institute
Stating telescopic device includes the power mechanism that the telescoping mechanism being symmetricly set in fixing groove and driving telescoping mechanism stretch, described
Telescoping mechanism includes the fixation of mounting rod, the first hinge bar, the second hinge bar and " H " type being fixedly mounted in fixing groove
Frame, one end of mounting rod are hinged on the leftward position of fixed frame bottom end, and the end of the first hinge bar is hinged on fixed frame bottom end
Right side, one end of the second hinge bar are hinged on the end of the first hinge bar, and the other end of the second hinge bar is hinged on mounting rod
Middle position, the middle position of the fixed frame are also hinged with rotating bar, and it is hinged that the other end of the rotating bar is hinged on first
The junction of bar and the second hinge bar, symmetrically arranged rotating bar are fixedly connected by the 5th shaft, the power mechanism with turn
Lever connection, the idler wheel are mounted between symmetrically arranged mounting rod.
Further, the power mechanism includes the 4th motor and the 5th gear, and the 4th motor is mounted on fixation
In slot, the 5th gear is fixedly connected with the output end of the 4th motor, is fixedly installed with the 6th gear among the 5th shaft, institute
It states the 5th gear and engages connection with the 6th gear.
Further, the lifting body includes electric pushrod and raising plate, and the electric pushrod is vertically installed at logical
The bottom of wind cabinet body, raising plate are fixedly connected with the output end of electric pushrod.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention one；
Fig. 2 is structural schematic diagram two of the invention；
Fig. 3 is fractionation structural representation of the invention；
Fig. 4 is the structural schematic diagram of lifting device of the invention；
Fig. 5 is the enlarged structure schematic diagram in Fig. 4 at A；
Fig. 6 is the structural schematic diagram of cleaning device of the invention；
Fig. 7 is the structural schematic diagram of limitation component of the invention；
Fig. 8 is the structural schematic diagram of air draft mechanism of the invention；
Fig. 9 is the structural schematic diagram of walking component of the invention；
Figure 10 is the structural schematic diagram of lifting body of the invention；
Figure 11 is the structural schematic diagram of mounting ring and volute wall of the invention；
Figure 12 is the structural schematic diagram that end cap of the invention is connect with third shaft；
Figure 13 is the structural schematic diagram of bristle fixed structure of the invention；
Figure 14 is the circuit diagram of control circuit of the invention；
Description of symbols: ventilation cabinet body 1, workbench 2, sink 3, tap 4, sealed glass door 5, air draft mechanism 6 are led to
Air hose 7, fixed round frame 8, the 5th motor 9, exhaust fan 10, limitation component 11, lifting device 12, filter screen 13, cleaning device 14,
Telescopic device 15, idler wheel 16, lifting body 17, locker 18, the first mounting base 19, first rotating shaft 20, first gear 21, second
Mounting base 22, the second shaft 23, the first idler wheel 24, the second idler wheel 25, belt 26, first motor 27, threaded rod 28, third installation
Seat 29, second gear 30, mounting rack 31, third shaft 32, the second motor 33, motorized rails 34, sliding block 35 accept box 36, limit
Disk 37 processed, the 4th mounting base 38, the 4th shaft 39, third gear 40, the 5th mounting base 41, third motor 42, the 4th gear 43,
Mounting rod 44, the first hinge bar 45, the second hinge bar 46, fixed frame 47, rotating bar 48, the 5th shaft 49, the 4th motor 50, the
Five gears 51, the 6th gear 52, electric pushrod 53, raising plate 54, hairbrush 55.
Specific embodiment
Multiple embodiments of the invention will be disclosed with schema below, as clearly stated, the details in many practices
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema,
Some known usual structures and component will be painted it in the drawings in simply illustrative mode.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, not especially censure
The meaning of order or cis-position, also non-to limit the present invention, the component described just for the sake of difference with same technique term
Or operation, it is not understood to indicate or imply its relative importance or implicitly indicates the number of indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.In addition, each
Technical solution between a embodiment can be combined with each other, but must can be implemented as base with those of ordinary skill in the art
Plinth will be understood that the combination of this technical solution is not present when conflicting or cannot achieve when occurs in the combination of technical solution,
Also not the present invention claims protection scope within.
It include ventilation cabinet body 1 referring to figs. 1 to a kind of experimental laboratory air exhausting device shown in Fig. 10, in the ventilation cabinet body 1
The centre in portion is provided with workbench 2, and sink 3 and tap 4 are provided on workbench 2, and the front end of workbench 2 is provided with sealing glass
Glass door 5, ventilation 1 top of cabinet body are provided with air draft component, and the air draft component includes air draft mechanism 6 and is connected to air draft mechanism
The ventilation duct 7 of 6 upper ends, air draft mechanism 6 include fixed round frame 8, the 5th motor 9 and exhaust fan 10, and fixed round frame 8 is mounted on logical
In wind cabinet body 1, the 5th motor 9 is mounted in fixed round frame 8, and exhaust fan 10 is fixedly connected with the output end of the 5th motor 9, ventilation
The limitation component 11 of limitation ventilation quantity is additionally provided on pipe 7, the two sides on ventilation 1 top of cabinet body are provided with mounting groove, in mounting groove
It is provided with the lifting device 12 that driving sealed glass door 5 is gone up and down, the lower end of air draft component is detachably equipped with filter screen 13, works
The top of platform 2 is equipped with the cleaning device 14 of cleaning filter screen 13, and the bottom of ventilation cabinet body 1 is additionally provided with multiple walking components,
The idler wheel 16 that the walking component includes telescopic device 15 and is mounted on 15 output end of telescopic device, 1 bottom of cabinet body of divulging information
It is additionally provided with the lifting body 17 for promoting whole device, the lower section that workbench 2 is located on cabinet body 1 of divulging information is additionally provided with multiple storings
Cabinet 18.
The sealed glass door 5 is slidably connected at the front end of ventilation cabinet body 1, and the two sides of sealed glass door 5 are fixedly mounted
There is a rack gear, the lifting device 12 includes driving assembly, the first mounting base 19, first rotating shaft 20 and first gear 21, and first
Mounting base 19 is arranged in mounting groove, and 20 trunnion axis of first rotating shaft connects in the first mounting base 19, and the axis of first rotating shaft 20
The extending direction of line is consistent with the ventilation wide extending direction of cabinet body 1, and first gear 21 is fixedly mounted on the end of first rotating shaft 20
Portion, and first gear 21 is engaged with rack connection, driving assembly is arranged in mounting groove, and the output end of driving assembly with
First rotating shaft 20 connects.Driving assembly drives first rotating shaft 20 to rotate, and the first gear 21 being mounted in first rotating shaft 20 rotates
Moving up and down for rack gear is driven, the final lifting for realizing driving sealed glass door 5.
The driving component includes the second mounting base 22, the second shaft 23, the first idler wheel 24 and the second idler wheel 25, described
The side of first rotating shaft 20 is arranged in second mounting base 22, and 23 trunnion axis of the second shaft connects in the second mounting base 22, and the
Two shafts 23 are arranged in parallel with first rotating shaft 20, and the first idler wheel 24 is fixedly mounted in first rotating shaft 20, and the second idler wheel 25 is fixed
It is mounted in the second shaft 23, the first idler wheel 24 and the second idler wheel 25 are sequentially connected by belt 26, are also set in the mounting groove
It is equipped with the driving mechanism of driving the second shaft 23 rotation.Driving mechanism drives the rotation of the second idler wheel 25, passes through with the second idler wheel 25
The first idler wheel 24 that belt 26 is sequentially connected rotates synchronously, the final rotation for realizing driving first gear 21.
The driving mechanism includes first motor 27, threaded rod 28 and the third mounting base being symmetrically mounted in mounting groove
29,28 axis of threaded rod connects in third mounting base 29, and first motor 27 is mounted in third mounting base 29 and threaded rod 28
One end is fixedly connected with the output end of first motor 27, and the end of the second shaft 23 is additionally provided with second gear 30, and described second
Gear 30 engages connection with threaded rod 28.First motor 27 drives threaded rod 28 to rotate, the second gear engaged with threaded rod 28
30 rotate synchronously, and second gear 30 drives the rotation of the second shaft 23, the final rotation for realizing the second idler wheel 25 of driving.
The cleaning device 14 includes mounting rack 31, third shaft 32, the second motor 33 and is symmetrically mounted on workbench 2
The motorized rails 34 on top slidably connect sliding block 35 on motorized rails 34, and mounting rack 31 is mounted on sliding block 35, third shaft
32 axis connect on mounting rack 31, and the second motor 33 is mounted on mounting rack 31, and one end of third shaft 32 and the second motor
33 output end is fixedly connected, and multiple hairbrush 55 are fixedly installed in the third shaft 32.Second motor 33 drives third to turn
Axis 32 rotates, and the top of workbench 2 is cleared up in the rotation of hairbrush 55 being mounted in third shaft 32, and cleaning device 14 is in electricity
It is moved on dynamic guide rail 34, and then the filter screen 13 that 2 top of workbench is arranged in is cleaned.
Undertaking box 36 for accepting dirt is also detachably installed on the mounting rack 31.Foul after cleaning is fallen
It is accepting in box 36.
The limitation component 11 includes rotating mechanism, and the output end of rotating mechanism extends in ventilation duct 7, rotating mechanism
Output end circular confinement plate 37 is installed, the rotating mechanism includes the 4th mounting base, the 4th shaft 39, third gear
40, the 5th mounting base and third motor 42, the 4th mounting base 38 and the 5th mounting base are installed in the top of ventilation cabinet body 1, the
Four shafts, 39 trunnion axis connects in the 4th mounting base, and one end of the 4th shaft 39 extends in ventilation duct 7, and confinement plate 37 is solid
Dingan County is located at the end in ventilation duct 7 mounted in the 4th shaft 39, and third motor 42 is fixedly mounted in the 5th mounting base, the 4th tooth
Wheel 43 is fixedly connected with the output end of third motor 42, and third gear 40, the third are also fixedly installed in the 4th shaft 39
Gear 40 engages connection with the 4th gear 43.Limitation component 11 can according to need logical pot control confinement plate 37 and give off to control
The uninterrupted of laboratory air.
The bottom of the ventilation cabinet body 1 is provided with multiple fixing grooves, and telescopic device 15 is arranged in fixing groove, described flexible
Device 15 includes the power mechanism that the telescoping mechanism being symmetricly set in fixing groove and driving telescoping mechanism stretch, described flexible
Mechanism includes the fixation of mounting rod 44, the first hinge bar 45, the second hinge bar 46 and " H " type being fixedly mounted in fixing groove
Frame 47, one end of mounting rod 44 are hinged on the leftward position of 47 bottom end of fixed frame, and the end of the first hinge bar 45 is hinged on fixation
The right side of 47 bottom end of frame, one end of the second hinge bar 46 are hinged on the end of the first hinge bar 45, the second hinge bar 46 it is another
End is hinged on the middle position of mounting rod 44, and the middle position of the fixed frame 47 is also hinged with rotating bar 48, the rotating bar
48 other end is hinged on the junction of the first hinge bar 45 and the second hinge bar 46, and symmetrically arranged rotating bar 48 passes through the 5th
Shaft 49 is fixedly connected, and the power mechanism is connect with rotating bar 48, and the idler wheel 16 is mounted on symmetrically arranged mounting rod 44
Between.When needing to shrink on idler wheel 16, power mechanism drives the rotation of the 5th shaft 49, is fixedly mounted on the 5th shaft 49
On rotating bar 48 be rotated up, driving mounting rod 44, the first hinge bar 45 and the second hinge bar 46 are rotated up, and realize installation
The recycling of idler wheel 16 on mounting rod 44, idler wheel 16 is recovered in fixing groove.
The power mechanism includes the 4th motor 50 and the 5th gear 51, and the 4th motor 50 is mounted on fixing groove
Interior, the 5th gear 51 is fixedly connected with the output end of the 4th motor 50, is fixedly installed with the 6th tooth among the 5th shaft 49
Wheel 52, the 5th gear 51 engages connection with the 6th gear 52.
The lifting body 17 includes electric pushrod 53 and raising plate 54, and the electric pushrod 53 is vertically installed at ventilation
The bottom of cabinet body 1, raising plate 54 are fixedly connected with the output end of electric pushrod 53.When shrinking and stretching out idler wheel 16, electricity
Dynamic push rod 53 first drives raising plate 54 to jack up whole device, then after idler wheel 16 stretches out or is collapsible into fixing groove, electricity
Whole device is put down in the dynamic contraction of push rod 53.
Device: being first pushed to determining position by working principle, and then electric pushrod 53 first drives raising plate 54 will be entire
Device jacks up, then when power mechanism drives the rotation of the 5th shaft 49, the rotating bar 48 that is fixedly mounted in the 5th shaft 49
It is rotated up, driving mounting rod 44, the first hinge bar 45 and the second hinge bar 46 are rotated up, and realization is mounted on mounting rod 44
Idler wheel 16 recycling, idler wheel 16 is recovered in fixing groove, electric pushrod 53 contraction whole device is put down, driving assembly drive
Dynamic first rotating shaft 20 rotates, moving up and down for rack gear of 21 rotate driving of first gear being mounted in first rotating shaft 20, finally
Realize the lifting of driving sealed glass door 5, limitation component 11, which can according to need, to give off by controlling confinement plate 37 to control
The uninterrupted of laboratory air, the second motor 33 drive third shaft 32 to rotate, the hairbrush 55 being mounted in third shaft 32
The top of workbench 2 is cleared up in rotation, and cleaning device 14 moves on motorized rails 34, and then to setting in workbench 2
The filter screen 13 of top is cleaned.
The utility model has the advantages that the walking component of device setting can according to need and take in idler wheel in fixing groove, needs when
Time stretches out idler wheel, so that it may pushing meanss, so that mobile whole device is very convenient；The lifting device of device setting can be with
The lifting of sealed glass door is driven, adjusts the height of sealed glass door as needed；Cleaning device can be at any time by filter screen mistake
The foul of filter cleans, and guarantees the clean and tidy clean of whole device.
In one embodiment, as figs 11-13,
The third shaft 32 is respectively arranged with mounting ring 56 close to the position of both side ends, and the mounting ring includes fanning
Rachis covers 56-1 and clamping ring 56-2, the fan blade axle sleeve 56-1 and the third shaft is clamped, the fan blade axle sleeve 56-1 with
It is connected between the clamping ring 56-2 by flabellum 56-3, passes through volute wall flexible between two clamping ring 56-2
57 are connected, and fixed cylinder 58 is embedded on the outside of the volute wall 57, bristle grafting block 59, institute are embedded in the fixed cylinder 58
Bristle grafting block 59 is stated by the first spring 60 and 58 elastic connection of fixed cylinder, the bottom of the bristle grafting block 59 passes through
Bracing wire 61 is vertical with the third shaft 32 to be connect,
The outer sheath of the third shaft 32 is equipped with second spring 62, the outside of second spring 62 and the volute wall 57
Inner wall is in contact,
One end of the third shaft 32 is fixedly connected with the output end of the second motor 33,32 other end of third shaft
It is provided with rotation slot 32-1 and center slot 32-2, and is fixed on mounting rack 31 by end cap 63,63 one end of end cap is located at rotation
It in slot 32-1, and is slidably connected with rotation slot 32-1, spacer 64 and locating shaft 65 is equipped in the end cap 63, the spacer 64 is sliding
It is dynamic to be socketed in 65 outside of locating shaft, and 64 outside of spacer is slidably connected with 63 inner wall of end cap, 65 one end of locating shaft sliding is passed through
End cap 63 is worn, and other end outer wall center slot 32-2 inner wall is slidably connected,
The locating shaft 65 is provided with annular groove 66 far from center one end slot 32-2, and baffle ring 67 is fixed in end cap 63,
The baffle ring 67 is clamped with annular groove 66.
The working principle and beneficial effect of above-described embodiment are as follows:
Second motor drives the rotation of third shaft, then drives mounting ring rotation, and the rotation of mounting ring drives volute wall
Rotation carries out clean effect to filter screen using bristle to reach.
The setting of the present embodiment flabellum can generate air flowing during mounting ring rotates, and the dust made is not easy
It is adhered on bristle and filter screen.
The setting of the present embodiment second spring plays the supporting role to volute wall, while having elasticity, connects with strainer
Touching is more bonded, and cleaning effect is good.
The present embodiment, bristle grafting block is in shaft rotary course, under the influence of centrifugal force, can be displaced outwardly, revolving speed
After decline, under the action of the spring, inwardly resets, to play the effect that the dust of hairbrush root is pushed into top, be not easy to accumulate
Poly- dust.
It in one embodiment, as shown in figure 14, further include control circuit, for controlling the confession of electrical equipment of the present invention
Electricity, the control circuit, including
Resistance R1, one end are connected with one end of resistance R2,
The other end of resistance R2 is connected with triode Q2 collector,
The other end of the resistance R1 is separately connected triode Q1 emitter, resistance R9, resistance R6, resistance R11 and power supply
VCC,
The other end of resistance R11 is connected with triode Q1 base stage,
The resistance R9 other end is connected with triode Q3 collector,
The resistance R6 other end is separately connected resistance R3 and diode D1 cathode,
The resistance R3 other end is separately connected resistance R5, resistance R4 and triode Q2 base stage,
The other end of resistance R4 is positive with diode D1 anode, resistance R10, resistance R8, diode D2 respectively, capacitor C1 phase
Connection, and be grounded,
The resistance R5 other end is separately connected triode Q1 collector, diode D2 cathode and inductance L1,
Triode Q2 emitter is separately connected the other end and triode Q3 emitter of resistance R10,
Triode Q3 base stage is separately connected resistance R8 and resistance R7, the resistance R7 other end be separately connected the inductance L1 other end,
Capacitor C1 and output end vo,
The power supply VCC voltage is 24V, and the triode Q2 and triode Q3 are NPN triode.
The working principle of above-mentioned technical proposal are as follows: when power supply VCC is connected, Q2 base stage obtains electric current by biasing circuit and leads
Logical, Q1 is connected in generated collector current, because energy storage inductor L1 electric current cannot be mutated, so Q3 is still off, L1 voltage
Polarity is that the left positive right side is negative, and with the promotion of L1 electric current, Q3 gradually switchs to be connected, and increases emitter voltage, this voltage pair
Negative feedback is played in Q2, Q2 conducting weakens, and Q1 just synchronizes decrease, this just enables L1 polarity of voltage overturn, and is bearing the right side just to be left, is adding
The speed conducting of Q3, Q2,
Q3 tends to cut-off, external loading that L1 connect by output end vo, D2 electric discharge, and subsequent output voltage declines, and Q3 is led
It is logical to weaken, cause the conducting of Q2, Q3 to enhance, transmit electricity again to L1, L1 polarity of voltage is overturn again, and to be left positive right negative, then Q3 becomes
To in cut-off, so enter circulation.
Having the beneficial effect that for above-mentioned technical proposal cooperates inductance L1 using triode, controls the frequency of power supply, leads to
The power supply of different frequencies can be obtained in the parameter for crossing change inductance L, and adjustable range is larger, and circuit structure is simple, at low cost, and
And due to not using any chip component, strong antijamming capability.
The upper only embodiments of the present invention, are not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.All any modifications made in spirit and principles of the present invention are equal
Replacement, improvement etc., should all be included within scope of the presently claimed invention.
Claims (10)
1. a kind of experimental laboratory air exhausting device, it is characterised in that: including,
It divulges information cabinet body (1),
Workbench (2) is set to the bosom position of ventilation cabinet body (1), be provided on workbench (2) sink (3) and
Tap (4),
Sealed glass door (5), is set to the front end of workbench (2),
Air draft component is set to the top of ventilation cabinet body (1), and the air draft component includes air draft mechanism (6) and the row of being connected to
The ventilation duct (7) of blower structure (6) upper end, air draft mechanism (6) include fixed round frame (8), the 5th motor (9) and exhaust fan
(10), fixed round frame (8) are mounted in ventilation cabinet body (1), and the 5th motor (9) is mounted on fixed round frame (8), exhaust fan (10)
It is fixedly connected with the output end of the 5th motor (9), the limitation component (11) of limitation ventilation quantity is additionally provided on ventilation duct (7), led to
The two sides on wind cabinet body (1) top are provided with mounting groove, and the lifting device of driving sealed glass door (5) lifting is provided in mounting groove
(12), the lower end of air draft component is detachably equipped with filter screen (13),
Cleaning device (14), the top for being set to workbench (2) are used to clean filter screen (13),
Multiple walking components, be uniformly arranged in ventilation cabinet body (1) bottom, the walking component include telescopic device (15) and
The idler wheel (16) being mounted on telescopic device (15) output end,
Lifting body (17) is set to ventilation cabinet body (1) bottom, for promoting whole device,
Locker (18) is set in the ventilation cabinet body (1) of the lower section of workbench (2).
2. a kind of experimental laboratory air exhausting device according to claim 1, it is characterised in that: sealed glass door (5) sliding
It is connected to the front end of ventilation cabinet body (1), the two sides of sealed glass door (5) are fixedly installed with rack gear, the lifting device (12)
It include driving assembly, the first mounting base (19), first rotating shaft (20) and first gear (21), the first mounting base (19) setting exists
In mounting groove, first rotating shaft (20) trunnion axis is connect on the first mounting base (19), and the extension of the axis of first rotating shaft (20)
Direction is consistent with the ventilation wide extending direction of cabinet body (1), and first gear (21) is fixedly mounted on the end of first rotating shaft (20),
And first gear (21) is engaged with rack connection, and driving assembly is arranged in mounting groove, and the output end of driving assembly with
First rotating shaft (20) connection.
3. a kind of experimental laboratory air exhausting device according to claim 2, it is characterised in that: the driving component includes second
(24 and second idler wheel (25), the second mounting base (22) setting is for mounting base (22), the second shaft (23), the first idler wheel
The side of one shaft (20), the second shaft (23) trunnion axis connect on the second mounting base (22), and the second shaft (23) and the
One shaft (20) is arranged in parallel, and the first idler wheel (24) is fixedly mounted on first rotating shaft (20), and the second idler wheel (25) is fixedly mounted
On the second shaft (23), the first idler wheel (24) and the second idler wheel (25) are sequentially connected by belt (26), in the mounting groove
It is additionally provided with the driving mechanism of driving the second shaft (23) rotation.
4. a kind of experimental laboratory air exhausting device according to claim 3, it is characterised in that: the driving mechanism includes first
Motor (27), threaded rod (28) and the third mounting base (29) being symmetrically mounted in mounting groove, threaded rod (28) axis connect in third
In mounting base (29), first motor (27) is mounted on third mounting base (29), and one end of threaded rod (28) and the first electricity
The output end of machine (27) is fixedly connected, and the end of the second shaft (23) is additionally provided with second gear (30), the second gear
(30) connection is engaged with threaded rod (28).
5. a kind of experimental laboratory air exhausting device according to claim 4, it is characterised in that: the cleaning device (14) includes
Mounting rack (31), third shaft (32), the second motor (33) and the motorized rails (34) for being symmetrically mounted on workbench (2) top,
It is slidably connected on motorized rails (34) sliding block (35), mounting rack (31) is mounted on sliding block (35), and third shaft (32) axis connects
On mounting rack (31), the second motor (33) is mounted on mounting rack (31), and one end of third shaft (32) and the second electricity
The output end of machine (33) is fixedly connected, and is fixedly installed with multiple hairbrush (55) on the third shaft (32).
6. a kind of experimental laboratory air exhausting device according to claim 5, it is characterised in that: the third shaft (32) is close to two
The position of side end is respectively arranged with mounting ring (56), and the mounting ring includes fan blade axle sleeve (56-1) and clamping ring (56-2),
The fan blade axle sleeve (56-1) and the third shaft are clamped, between the fan blade axle sleeve (56-1) and the clamping ring (56-2)
It is connected by flabellum (56-3), is connected between two clamping rings (56-2) by volute wall flexible (57), institute
It states and is embedded with fixed cylinder (58) on the outside of volute wall (57), be embedded with bristle grafting block (59) in the fixed cylinder (58), it is described
Bristle grafting block (59) passes through the first spring (60) and the fixed cylinder (58) elastic connection, the bottom of the bristle grafting block (59)
Portion is connect by the way that bracing wire (61) are vertical with the third shaft (32),
The outer sheath of the third shaft (32) is equipped with second spring (62), the outside of second spring (62) and the volute wall
(57) inner wall is in contact,
One end of the third shaft (32) is fixedly connected with the output end of the second motor (33), and the third shaft (32) is another
End is provided with rotation slot (32-1) and center slot (32-2), and is fixed on mounting rack (31) by end cap (63), end cap (63)
One end is located in rotation slot (32-1), and is slidably connected with rotation slot (32-1), be equipped in the end cap (63) spacer (64) and
Locating shaft (65), the spacer (64) are slidably socketed on the outside of locating shaft (65), and spacer (64) outside and end cap (63) inner wall
It is slidably connected, locating shaft (65) one end sliding runs through end cap (63), and other end outer wall center slot (32-2) inner wall is sliding
Dynamic connection,
The locating shaft (65) is provided with annular groove (56) far from the one end center slot (32-2), and is fixed with baffle ring in end cap (63)
(67), the baffle ring (67) and annular groove (66) are clamped.
7. a kind of experimental laboratory air exhausting device according to claim 5, it is characterised in that: also removable on the mounting rack (31)
Unload the undertaking box (36) being equipped with for accepting dirt.
8. a kind of experimental laboratory air exhausting device according to claim 7, it is characterised in that: the limitation component (11) includes
Rotating mechanism, the output end of rotating mechanism extend in ventilation duct (7), and the output end of rotating mechanism is equipped with circular confinement plate
(37), the rotating mechanism includes the 4th mounting base, the 4th shaft (39), third gear (40), the 5th mounting base and third
Motor (42), the 4th mounting base (38) and the 5th mounting base are installed in the top of ventilation cabinet body (1), and the 4th shaft (39) is horizontal
Axis connects in the 4th mounting base, and one end of the 4th shaft (39) extends in ventilation duct (7), and confinement plate (37) is fixedly mounted
It is located at the end in ventilation duct (7) in the 4th shaft (39), third motor (42) is fixedly mounted in the 5th mounting base, the 4th tooth
Wheel (43) is fixedly connected with the output end of third motor (42), is also fixedly installed with third gear (40) in the 4th shaft (39),
The third gear (40) engages connection with the 4th gear (43).
9. a kind of experimental laboratory air exhausting device according to claim 8, it is characterised in that: the bottom of ventilation cabinet body (1)
Multiple fixing grooves are provided with, telescopic device (15) is arranged in fixing groove, and the telescopic device (15) includes to be symmetricly set on
Telescoping mechanism in fixing groove and the flexible power mechanism of driving telescoping mechanism, the telescoping mechanism include mounting rod (44),
The fixed frame (47) of first hinge bar (45), the second hinge bar (46) and " H " type being fixedly mounted in fixing groove, mounting rod
(44) one end is hinged on the leftward position of fixed frame (47) bottom end, and the end of the first hinge bar (45) is hinged on fixed frame (47)
The right side of bottom end, one end of the second hinge bar (46) are hinged on the end of the first hinge bar (45), the second hinge bar (46) it is another
One end is hinged on the middle position of mounting rod (44), and the middle position of the fixed frame (47) is also hinged with rotating bar (48), institute
The other end for stating rotating bar (48) is hinged on the junction of the first hinge bar (45) and the second hinge bar (46), and symmetrically arranged turn
Lever (48) is fixedly connected by the 5th shaft (49), and the power mechanism is connect with rotating bar (48), idler wheel (16) peace
Between symmetrically arranged mounting rod (44), the power mechanism includes the 4th motor (50) and the 5th gear (51), institute
It states the 4th motor (50) to be mounted in fixing groove, the 5th gear (51) is fixedly connected with the output end of the 4th motor (50), described
It is fixedly installed with the 6th gear (52) among 5th shaft (49), the 5th gear (51) and the 6th gear (52) company of engagement
It connects.
10. a kind of experimental laboratory air exhausting device according to claim 9, it is characterised in that: the lifting body (17) includes
There are electric pushrod (53) and raising plate (54), the electric pushrod (53) is vertically installed at the bottom of ventilation cabinet body (1), raising plate
(54) it is fixedly connected with the output end of electric pushrod (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910784733.1A CN110449436B (en) | 2019-08-23 | 2019-08-23 | Laboratory exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910784733.1A CN110449436B (en) | 2019-08-23 | 2019-08-23 | Laboratory exhaust device |
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| Publication Number | Publication Date |
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| CN110449436A true CN110449436A (en) | 2019-11-15 |
| CN110449436B CN110449436B (en) | 2020-09-18 |
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ID=68488843
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910784733.1A Active CN110449436B (en) | 2019-08-23 | 2019-08-23 | Laboratory exhaust device |
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| CN111054718A (en) * | 2019-11-29 | 2020-04-24 | 成都思博特实验设备有限公司 | Fume hood for laboratory and forming method |
| CN111338249A (en) * | 2020-03-06 | 2020-06-26 | 盐城苏科智能科技有限公司 | Intelligent household host |
| CN112404084A (en) * | 2021-01-11 | 2021-02-26 | 张春艳 | Ventilation cabinet for food laboratory |
| CN114247722A (en) * | 2021-11-19 | 2022-03-29 | 北京戴纳实验科技有限公司 | Ventilation experiment cabinet capable of adjusting temperature and air quantity |
| WO2022099667A1 (en) * | 2020-11-10 | 2022-05-19 | 苏州纳昇源新材料科技有限公司 | Efficient air filter apparatus of mesh structure |
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|---|---|
| CN110449436B (en) | 2020-09-18 |
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