CN109201685A - A kind of vent cabinet can detecte air quantity - Google Patents
A kind of vent cabinet can detecte air quantity Download PDFInfo
- Publication number
- CN109201685A CN109201685A CN201810974525.3A CN201810974525A CN109201685A CN 109201685 A CN109201685 A CN 109201685A CN 201810974525 A CN201810974525 A CN 201810974525A CN 109201685 A CN109201685 A CN 109201685A
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- fixedly connected
- fixed
- vent cabinet
- main body
- wall
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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
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
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Abstract
The present invention relates to vent cabinet technical fields, and disclose a kind of vent cabinet that can detecte air quantity, including vent cabinet main body, the lower surface of the vent cabinet main body is fixedly connected with supporting leg, the inner wall of the vent cabinet main body is hinged with cabinet door by hinge, the front of the cabinet door is fixedly connected with handle, and the inner wall of the vent cabinet main body is fixedly connected with demarcation plate, and the inner wall of the vent cabinet main body is fixedly connected with LED illumination lamp.This can detecte the vent cabinet of air quantity, push vane mobile by wind, so that fixed link is rotated by vane by shaft of round bar, so that fixed link drives the fixation round block rotation being fixed on second bearing outer wall, cooperate the through-hole on fixed round block by laser beam emitting head and laser pick-off head, allow to receive the number of laser by laser pick-off head in the stipulated time to calculate the revolving speed of fixed round block, air quantity is from which further followed that calculate wind speed, so that realizing the purpose of detection air quantity.
Description
Technical field
The present invention relates to vent cabinet technical field, specially a kind of vent cabinet that can detecte air quantity.
Background technique
Laboratory ventilation is an indispensable component part in lab 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.Vent cabinet is that a kind of most common intermittent local ventilation, type are numerous in laboratory
More, due to its structure difference, the condition used is different, and exhaust effect is not also identical.The good ring of the performance of vent cabinet, mainly depends on
In the speed mobile by vent cabinet air.Maximum purpose using vent cabinet is the pernicious gas generated in discharge experiment, is protected
Protect the health of experimenter, that is to say, that have the safety and superior operability of height.Since vent cabinet is in biochemical test
Occupy very important position in room, from improving laboratory environment, improving labour health condition, improves working efficiency etc. and examine
Consider, the use number of units of vent cabinet increases by leaps and bounds.Consequent is ventilation shaft, and piping, wiring, air draft etc. all become experiment
The important topic of room construction.
But vent cabinet currently on the market can only change air quantity and cannot but detect air quantity, so as to vent cabinet performance quality
It is difficult to infer.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of vent cabinet that can detecte air quantity, have and can detecte air quantity
The advantages that, it solves the problems, such as that vent cabinet performance quality is difficult to infer.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of vent cabinet that can detecte air quantity, including vent cabinet
Main body, the lower surface of the vent cabinet main body are fixedly connected with supporting leg, and the inner wall of the vent cabinet main body is hinged by hinge
There is cabinet door, the front of the cabinet door is fixedly connected with handle, and the inner wall of the vent cabinet main body is fixedly connected with demarcation plate, described
The inner wall of vent cabinet main body is fixedly connected with LED illumination lamp, and the top of the vent cabinet main body inner wall is fixedly connected with fixed block,
The front of the vent cabinet main body is fixedly connected with front side board, offers in the middle part of the fixed block upper surface and runs through and be connected to admittedly
Determine the ventilation slot at block both ends, the right side of the ventilation slot inner wall is fixed to be inlaid with and run through and be connected to the of ventilation slot inner wall right end
One bearing, the inner wall of the first bearing are fixedly connected with round bar, are fixedly connected with second bearing in the middle part of the round bar surface,
The surface of the second bearing is fixedly connected with fixed round block, and the right side of the fixed round block, which offers, to be run through and be connected to fixation
The through-hole at round block both ends, the surface of the fixed round block are fixedly connected with fixed link, and the surface of the fixed link is fixedly connected with
First limited block, the upper surface of first limited block are connected with vane, and the vane is fixedly connected on the table of fixed link
Face, and fixed link runs through and is connected to the both ends of vane, the upper surface of the vane is fixedly connected with the second limited block, second limit
Position block is fixedly connected on the surface of fixed link, and the right side of the ventilation slot inner wall is fixedly connected with laser beam emitting head, described logical
The left side of wind groove inner wall is fixedly connected with laser pick-off head, and the upper surface of the corresponding ventilation slot of fixed block is fixedly connected with
Connecting tube, the upper surface of the connecting tube are fixedly connected with the air intake vent of blower, and the lower surface of the blower is fixedly connected with wind
Machine fixed frame, the fan fixed mount are fixedly connected on the upper surface of fixed block, and the upper surface of the fan outlet is fixed to be connected
It is connected to discharge pipe.
Preferably, the quantity of the supporting leg be two, and two supporting legs with vent cabinet body lower surface it is vertical in
Line is the lower surface that symmetry axis is symmetricly set on vent cabinet main body.
Preferably, the first limit block and the second limit block are that symmetrical axial symmetry is set with the positive horizontal central line of vane
It sets.
Preferably, the quantity of the fixed link is three, and three fixed links are fixedly connected in the form of annular array
The surface of fixed round block.
Preferably, the vane is semicircular empty cup structure.
Preferably, the laser beam emitting head, first bearing, through-hole and laser pick-off head are located at same level, and laser
Emitting head and laser pick-off head are symmetrical arranged by symmetry axis of the median vertical line of through-hole wall.
Preferably, the internal diameter of the first bearing and the internal diameter of second bearing are equal.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of vent cabinet that can detecte air quantity, have it is following the utility model has the advantages that
This can detecte the vent cabinet of air quantity, push vane mobile by wind, so that fixed link is by vane using round bar as shaft
Rotation is connect so that fixed link drives the fixation round block rotation being fixed on second bearing outer wall by laser beam emitting head and laser
It receives head and cooperates the through-hole fixed on round block, allow to receive the number of laser by laser pick-off head in the stipulated time to calculate
The revolving speed of round block is fixed out, so that calculating wind speed from which further follows that air quantity, so that realizing the purpose of detection air quantity.
Detailed description of the invention
Fig. 1 is structure of the invention front view；
Fig. 2 is structure of the invention front elevational view；
Fig. 3 is schematic enlarged-scale view at A in Fig. 2 of the present invention；
Fig. 4 is fixed-block-architecture (FBA) top view of the present invention；
Fig. 5 is fixed-block-architecture (FBA) sectional side view of the present invention.
In figure: before 1 vent cabinet main body, 2 supporting legs, 3 cabinet doors, 4 handles, 5 demarcation plates, 6 LED illumination lamps, 7 fixed blocks, 8
Side plate, 9 ventilation slots, 10 first bearings, 11 round bars, 12 second bearings, 13 fixed round blocks, 14 through-holes, 15 fixed links, 16 first limits
Position block, 17 vanes, 18 second limited blocks, 19 laser pick-off heads, 20 laser beam emitting heads, 21 connecting tubes, 22 blowers, 23 blowers are fixed
Frame, 24 discharge pipes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5, a kind of vent cabinet can detecte air quantity, including vent cabinet main body 1 are please referred to, under vent cabinet main body 1
Surface is fixedly connected with supporting leg 2, and the quantity of supporting leg 2 is two, and two supporting legs 2 are with 1 lower surface of vent cabinet main body
Median vertical line is the lower surface that symmetry axis is symmetricly set on vent cabinet main body 1, so that two supporting legs 2 preferably support the ventilation
The inner wall of cabinet, vent cabinet main body 1 is hinged with cabinet door 3 by hinge, and the front of cabinet door 3 is fixedly connected with handle 4, vent cabinet main body
1 inner wall is fixedly connected with demarcation plate 5, to be divided to vent cabinet main body 1 for operation cavity and storage cabinet two by demarcation plate 5
Point, the inner wall of vent cabinet main body 1 is fixedly connected with LED illumination lamp 6, illumination is provided by LED illumination lamp 6, in vent cabinet main body 1
The top of wall is fixedly connected with fixed block 7, and the front of vent cabinet main body 1 is fixedly connected with front side board 8,7 upper surface of fixed block
Middle part offers the ventilation slot 9 for running through and being connected to 7 both ends of fixed block, and the right side of 9 inner wall of ventilation slot is fixed to be inlaid with through simultaneously
It is connected to the first bearing 10 of 9 inner wall right end of ventilation slot, the inner wall of first bearing 10 is fixedly connected with round bar 11,11 surface of round bar
Middle part is fixedly connected with second bearing 12, and the internal diameter of first bearing 10 is equal with the internal diameter of second bearing 12, so that round bar 11 can
To be separately fixed on 12 inner wall of first bearing 10 and second bearing, the surface of second bearing 12 is fixedly connected with fixed round block
13, the right side of fixed round block 13 offers the through-hole 14 for running through and being connected to fixed 13 both ends of round block, the surface of fixed round block 13
It is fixedly connected with fixed link 15, the quantity of fixed link 15 is three, and three fixed links 15 fixed company in the form of annular array
It connects on the surface of fixed round block 13, three fixed links 15 are mutually 120 ° convenient for measurement wind speed, and the surface of fixed link 15 is fixedly connected
There is the first limited block 16, the upper surface of the first limited block 16 is connected with vane 17, and vane 17 is semicircular empty cup structure,
Vane 17 is pushed convenient for wind, when wind passes through from ventilation slot 9, it is mobile to will push vane 17, so that fixed link 15 passes through vane 17
It is shaft rotation with round bar 11, so that fixed link 15 drives the fixation round block 13 being fixed on 12 outer wall of second bearing to rotate, wind
Cup 17 is fixedly connected on the surface of fixed link 15, and fixed link 15 runs through and be connected to the both ends of vane 17, the upper surface of vane 17
The second limited block 18, the first limited block 16 and the second limited block 18 are fixedly connected with using the positive horizontal central line of vane 17 as symmetry axis
It is symmetrical arranged, so that vane 17 is fixed in fixed link 15 by the first limited block 16 and the second limited block 18, the second limited block 18
It is fixedly connected on the surface of fixed link 15, the right side of 9 inner wall of ventilation slot is fixedly connected with laser beam emitting head 20, in ventilation slot 9
The left side of wall is fixedly connected with laser pick-off head 19, laser beam emitting head 20, first bearing 10, through-hole 14 and laser pick-off head 19
Positioned at same level, and laser beam emitting head 20 and laser pick-off head 19 with the median vertical line of 14 inner wall of through-hole for symmetrical axial symmetry
Setting cooperates the through-hole 14 on fixed round block 13 by laser beam emitting head 20 and laser pick-off head 19, allows to pass through regulation
Laser pick-off head 19 receives the number of laser to calculate the revolving speed of fixed round block 13 in time, under the effect of constant wind power, wind
Cup 17 is allowed to rotate by wind promotion, and the revolving speed and wind speed of vane 17 are at certain relationship, it is assumed that and extraneous wind speed u is constant, and i-th
The speed of related movement v of wind speed and air are as follows: v=u-2 π nRcos θ i, in formula, n is the revolving speed of vane 17, and R is vane 17 to rotation
Shaft radius, i θ is the angle of cut of air-flow and 17 inter normal direction of vane, to calculate wind speed, by tuyere air volume L calculating L=
3600*F*V, in formula: F is that air port draught area m2, V are the air port mean wind speed (m/s) measured, from which further follows that air quantity, from
And the purpose of detection air quantity is made it possible to achieve, the upper surface of the corresponding ventilation slot 9 of fixed block 7 is fixedly connected with connecting tube 21,
The upper surface of connecting tube 21 is fixedly connected with the air intake vent of blower 22, be powered by blower 22 so that the vent cabinet can achieve it is logical
The purpose of wind, the lower surface of blower 22 are fixedly connected with fan fixed mount 23, and fan fixed mount 23 is fixedly connected on fixed block 7
The upper surface of upper surface, 22 air outlet of blower is fixedly connected with discharge pipe 24.
The electric elements occurred in this article are electrically connected with extraneous main controller and 220V alternating current, and main controller can be meter
Calculation machine etc. plays the conventionally known equipment of control.
When in use, it is powered by blower 22 so that the vent cabinet can achieve the purpose of ventilation, when wind is passed through from ventilation slot 9
It is out-of-date, it is mobile to will push vane 17, so that fixed link 15 is shaft rotation with round bar 11 by vane 17, so that 15 band of fixed link
The dynamic fixation round block 13 being fixed on 12 outer wall of second bearing rotates, and is cooperated by laser beam emitting head 20 and laser pick-off head 19 solid
Determine the through-hole 14 on round block 13, allows to receive the number of laser by laser pick-off head 19 in the stipulated time solid to calculate
Determine the revolving speed of round block 13, so that calculating wind speed from which further follows that air quantity, so that realizing the purpose of detection air quantity, leads to
It crosses demarcation plate 5 to divide vent cabinet main body 1 to operate cavity and storage cabinet two parts, and provides photograph by LED illumination lamp 6
It is bright.
In conclusion this can detecte the vent cabinet of air quantity, push vane 17 mobile by wind, so that fixed link 15 passes through
Vane 17 is shaft rotation with round bar 11, so that fixed link 15 drives 13 turns of fixation round block be fixed on 12 outer wall of second bearing
It is dynamic, the through-hole 14 on fixed round block 13 is cooperated by laser beam emitting head 20 and laser pick-off head 19, when allowing to pass through regulation
Interior laser pick-off head 19 receives the number of laser to calculate the revolving speed of fixed round block 13, further obtains to calculate wind speed
Air output, so that realizing the purpose of detection air quantity.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of vent cabinet that can detecte air quantity, including vent cabinet main body (1), it is characterised in that: the vent cabinet main body (1)
Lower surface be fixedly connected with supporting leg (2), the inner wall of the vent cabinet main body (1) is hinged with cabinet door (3) by hinge, described
The front of cabinet door (3) is fixedly connected with handle (4), and the inner wall of the vent cabinet main body (1) is fixedly connected with demarcation plate (5), institute
The inner wall for stating vent cabinet main body (1) is fixedly connected with LED illumination lamp (6), and the top of vent cabinet main body (1) inner wall is fixed to be connected
It is connected to fixed block (7), the front of the vent cabinet main body (1) is fixedly connected with front side board (8), fixed block (7) upper surface
Middle part offer the ventilation slot (9) for running through and being connected to fixed block (7) both ends, the right side of ventilation slot (9) inner wall is fixed
It is inlaid with the first bearing (10) for running through and being connected to ventilation slot (9) inner wall right end, the inner wall of the first bearing (10) is fixed to be connected
It is connected to round bar (11), is fixedly connected with second bearing (12) in the middle part of round bar (11) surface, the second bearing (12)
Surface is fixedly connected with fixed round block (13), and the right side of the fixed round block (13), which offers, runs through and be connected to fixed round block
(13) surface of the through-hole (14) at both ends, the fixed round block (13) is fixedly connected with fixed link (15), the fixed link (15)
Surface be fixedly connected with the first limited block (16), the upper surface of first limited block (16) is connected with vane (17),
The vane (17) is fixedly connected on the surface of fixed link (15), and fixed link (15) runs through and be connected to the both ends of vane (17),
The upper surface of the vane (17) is fixedly connected the second limited block (18), and second limited block (18) is fixedly connected on fixed link
(15) right side on surface, ventilation slot (9) inner wall is fixedly connected with laser beam emitting head (20), in the ventilation slot (9)
The left side of wall is fixedly connected with laser pick-off head (19), and the upper surface of the corresponding ventilation slot of the fixed block (7) (9) is fixed to be connected
It is connected to connecting tube (21), the upper surface of the connecting tube (21) is fixedly connected with the air intake vent of blower (22), the blower (22)
Lower surface be fixedly connected with fan fixed mount (23), the fan fixed mount (23) is fixedly connected on the upper table of fixed block (7)
The upper surface in face, blower (22) air outlet is fixedly connected with discharge pipe (24).
2. a kind of vent cabinet that can detecte air quantity according to claim 1, it is characterised in that: the supporting leg (2)
Quantity be two, and two supporting legs (2) be symmetricly set on using the median vertical line of vent cabinet main body (1) lower surface as symmetry axis it is logical
The lower surface of wind cabinet main body (1).
3. a kind of vent cabinet that can detecte air quantity according to claim 1, it is characterised in that: first limited block
(16) it is symmetrical arranged with the second limited block (18) by symmetry axis of vane (17) positive horizontal central line.
4. a kind of vent cabinet that can detecte air quantity according to claim 1, it is characterised in that: the fixed link (15)
Quantity is three, and three fixed links (15) are fixedly connected on the surface of fixed round block (13) in the form of annular array.
5. a kind of vent cabinet that can detecte air quantity according to claim 1, it is characterised in that: the vane (17) is half
Circular sky cup structure.
6. a kind of vent cabinet that can detecte air quantity according to claim 1, it is characterised in that: the laser beam emitting head
(20), first bearing (10), through-hole (14) and laser pick-off head (19) are located at same level, and laser beam emitting head (20) and swash
Light-receiving head (19) is symmetrical arranged by symmetry axis of the median vertical line of through-hole (14) inner wall.
7. a kind of vent cabinet that can detecte air quantity according to claim 1, it is characterised in that: the first bearing (10)
Internal diameter it is equal with the internal diameter of second bearing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974525.3A CN109201685A (en) | 2018-08-24 | 2018-08-24 | A kind of vent cabinet can detecte air quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974525.3A CN109201685A (en) | 2018-08-24 | 2018-08-24 | A kind of vent cabinet can detecte air quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109201685A true CN109201685A (en) | 2019-01-15 |
Family
ID=64989757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810974525.3A Pending CN109201685A (en) | 2018-08-24 | 2018-08-24 | A kind of vent cabinet can detecte air quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109201685A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200137A (en) * | 2022-07-14 | 2022-10-18 | 珠海横琴润霖生物科技有限公司 | Ultraviolet ray sterilizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200137A (en) * | 2022-07-14 | 2022-10-18 | 珠海横琴润霖生物科技有限公司 | Ultraviolet ray sterilizer |
| CN115200137B (en) * | 2022-07-14 | 2023-09-01 | 珠海横琴润霖生物科技有限公司 | Ultraviolet sterilizer |
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