CN208296920U - A kind of use for laboratory small-flow gas flowmeter - Google Patents

A kind of use for laboratory small-flow gas flowmeter Download PDF

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CN208296920U
CN208296920U CN201821043793.5U CN201821043793U CN208296920U CN 208296920 U CN208296920 U CN 208296920U CN 201821043793 U CN201821043793 U CN 201821043793U CN 208296920 U CN208296920 U CN 208296920U
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China
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main body
turnover panel
hole
side wall
photoelectric sensor
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周正
孙颖杰
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Abstract

The utility model discloses a kind of use for laboratory small-flow gas flowmeters, including electronics storehouse, top cover, main body and the pedestal being successively arranged from top to down；Single-chip microcontroller is installed in the electronics storehouse, display screen is provided on the side wall of the electronics storehouse, the display screen is connect with single-chip microcomputer signal；Filler is provided on the top cover；It is provided with air inlet and venthole in the main body wall, photoelectric sensor is installed on the side wall of described main body one end, transmitter is installed on other end side wall；The body interior bottom end is hinged with turnover panel, and there are two symmetrical gas storehouses for the turnover panel bottom end setting, and the turnover panel top, which is provided with, blocks protrusion.The utility model is compact-sized, compact, easy to use, and photoelectric sensor is quick on the draw, and turnover panel is symmetrical double gas storehouses, effectively prevent because return becomes flat not in time；Suitable for the small-flow gas metering that laboratory ferment experiment generates, the gas volume of the small flow of operator's quick metering is facilitated, there is very strong practicability.

Description

A kind of use for laboratory small-flow gas flowmeter
Technical field
The utility model relates to a kind of gas flowmeter more particularly to a kind of use for laboratory small-flow gas flowmeters.
Background technique
The usual system of laboratory ferment experiment is smaller, and gas production is very low and there are discontinuities, generallys use draining gas collection Method is measured to air volume is produced, but container volume is limited, must add water exhaust again after container product is full, if volume selects Select it is less than normal after will cause measuring error.
There are various flowmeters for gas dosing on the market, every kind of flowmeter has minimum flow velocity requirement, reaches not when producing gas Signal will not be generated when to the minimum for calculating or calculating inaccuracy.Due to the difference of flow sensing principle, small gas What flow sensor generallyd use is the form of silicon electric bridge, but it cannot be used for aqueous or the gas that is corrosive metering, this Just limit its application in laboratory ferment experiment；Electronics soap film flowmeter be based on surfactant based on one kind can Equipment to measure tiny flow quantity, but since the ingredient in fermentation gas is not single, may react and lead with surfactant It causes soap-film formation to go wrong, or causes soap lye increase to cause metering not due to taking moisture in fermentation process out of from system Standard is also not suitable for.
Utility model content
In order to solve problem above, the purpose of the utility model is to provide a kind of simple and convenient and accurate measurement laboratories With small-flow gas flowmeter.
In order to achieve the goal above, the technical solution adopted in the utility model: a kind of use for laboratory small-flow gas flow Meter, including electronics storehouse, top cover, main body and the pedestal being successively arranged from top to down.
Single-chip microcontroller is installed in the electronics storehouse, display screen, the display screen and list are provided on the side wall of the electronics storehouse The connection of piece machine signal；Volume of the single-chip microcontroller for institute's gas body in the main body that records and convert, result is added up, is shown in aobvious In display screen, single-chip microcontroller and display screen is placed in the electronics storehouse at top, prevents circuit because leak or spilling from causing to damage.
Be provided with filler on the top cover, for into main body plus water, using drainage to the volume by gas into Row calculates.
Air inlet and venthole are provided in the main body wall, the air inlet is connected to downwards main body along main body wall The air flue of bottom end, the air flue end connect stomata, and the stomata passes through main body bottom end and is connected to body interior, and the venthole connects Logical body interior；Gas is flowed into main body by air inlet, air flue and stomata, after the intracorporal liquid of master, is arranged from venthole Out.
Photoelectric sensor is installed on the side wall of described main body one end, transmitter, the photoelectricity are installed on other end side wall Sensor is used to receive the signal of transmitter, and the photoelectric sensor and transmitter are connect with single-chip microcomputer signal；The main body Inner bottom is hinged with turnover panel, the turnover panel bottom end setting there are two symmetrical gas storehouse, the turnover panel top be provided with block it is convex It rises.Hydraulically full in main body, gas enters the gas storehouse of side, and after gas reaches certain volume, torque produced by buoyancy is more than Turnover panel be self-possessed formed torque when, turnover panel swings to the other side, ejecting/collecting gas, while being sent out with blocking protrusion and blocking transmitter Infrared ray out causes photoelectric sensor to generate a signal, and is recorded and converted by single-chip microcontroller；Due to every time only certain Under the gas effect of amount, turnover panel could be overturn, and the number of this certain amount of gas volume and returning face plate overturning is remembered by single-chip microcontroller Record and conversion.
Further, being provided with groove on the side wall at the main body both ends, groove upper end offers aperture, and one recessed Slot installs the photoelectric sensor by photoelectric sensor mounting hole, another groove installs the hair by transmitter mounting hole Emitter, the photoelectric sensor and transmitter are connect by the wiring board through-hole on top cover with single-chip microcomputer signal, in two grooves It is provided with mark, is easily installed, transmitter mounting hole described in the photoelectric sensor mounting hole face makes produced by transmitter Signal can be received by photoelectric sensor.
Further, the turnover panel is triangular structure, two gas storehouses divide gas baffle to be spaced by intermediate, described Both ends are provided with multiple with repeated hole at the top of turnover panel, and face where the outlet with repeated hole both ends is inclined ramp.User can be with Increase and decrease counterweight according to actual requirement, facilitates operation；Face where exporting with repeated hole both ends is inclined ramp, effectively pushes turnover panel real Existing quick acting.When not starting to work, clump weight is added with repeated hole toward one end, the gas storehouse of this side is made to cover stomata；Work Afterwards, gas flows into the gas storehouse of this side, and after gas reaches certain volume, the gas storehouse of this side is overturn, and the gas storehouse of the other side covers Stomata, after other side gas storehouse gas volume reaches, gas storehouse overturning, and so on, circulation overturning.
Further, being provided with axis hole in the middle part of the turnover panel lower end, axis is provided in groove where photoelectric sensor and is consolidated Determine hole, to be provided with axis in groove where transmitter and enter hole, rotating plate shaft sequentially passes through axis and enters hole, axis hole and axis fixation hole.Axis hole position The whole center of gravity in turnover panel is set low, turnover panel has effectively been pushed to realize quick acting.
Further, being arranged on the base side wall there are two the baffle with groove cooperation, the light in groove is sheltered from Electric transducer and transmitter, prevent it to be destroyed.
Further, main body upper end side wall is equipped with water level observation window, water level is equipped in the middle part of water level observation window and is carved Line adds water for observing main intracorporal water level conditions convenient for user in main body.
Further, being provided with water-stop sheet on the pedestal, the water-stop sheet is contacted with air flue bottom end, seals up gas Road allows gas to smoothly flow into main body bottom end from air inlet, air flue and stomata, prevents from becoming flat.
Further, electronics storehouse back is provided with power interface and reset hole, the power supply for electric elements is connect Enter the reset operation with single-chip microcontroller.
Further, being equipped with plug on the filler, plug is covered after adding water, prevents other impurities from entering main body It is interior.
Further, the material of the main body is ABS plastic, the sealant in main body is silicon rubber, the photoelectric transfer Sensor and launcher shell are PC material.Since corrosive gas such as hydrogen sulfide may be generated in laboratory ferment experiment, because Rotproofness material is used inside this utility model completely.
Utility model the utility model has the advantages that the utility model is compact-sized, compact is easy to use, and photoelectric sensor is anti- Answer sensitive, turnover panel is symmetrical double gas storehouses, is effectively prevent because of return deflation not in time；The utility model is using drainage to passing through Gas volume is calculated, and body interior has a triangle turnover panel, and there are two symmetrical gas storehouse, gases to flow through gas storehouse for tool Afterwards, gas storehouse is overturn, and is realized to count using photoelectric sensor and is calculated, as single-chip microcontroller to blocking signal produced by protrusion every time and remember Record and conversion, and be shown on display screen, while can long-term storage of data；The utility model is suitable for laboratory ferment experiment and produces Raw small-flow gas metering, facilitates the gas volume of the small flow of operator's quick metering, has very strong practicability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the electronics chamber structure schematic diagram of the utility model；
Fig. 3 is the electronics storehouse other side structural schematic diagram of the utility model；
Fig. 4 is the cap structure schematic diagram of the utility model；
Fig. 5 is the agent structure schematic diagram of the utility model；
Fig. 6 is the main body front view of the utility model；
Fig. 7 is the main body rearview of the utility model；
Fig. 8 is the main body bottom view of the utility model；
Fig. 9 is the schematic diagram of base structure of the utility model；
Figure 10 is the water-stop sheet structural schematic diagram of the utility model；
Figure 11 is the reverse turning bed structure schematic diagram of the utility model；
Figure 12 is the turnover panel other side structural schematic diagram of the utility model；
In figure: 1, electronics storehouse；11, display screen；12, power interface；13, reset hole；2, top cover；21, filler；22, line Road plate through-hole；23, plug；3, main body；31, air inlet；32, venthole；33, air flue；34, stomata；35, groove；36, photoelectric transfer Sensor mounting hole；37, transmitter mounting hole；38, axis fixation hole；39, axis enters hole；39-1, water level observation window；4, pedestal；41, it keeps off Plate；42, water-stop sheet；5, turnover panel；51, gas storehouse；52, protrusion is blocked；53, divide gas baffle；54, match repeated hole；55, axis hole.
Specific embodiment
It is practical new to this with reference to the accompanying drawing in order to keep the purpose of this utility model, technical solution and advantage clearer Type is further elaborated.
As shown in Figure 1, a kind of use for laboratory small-flow gas flowmeter, including be successively arranged from top to down electronics storehouse 1, Top cover 2, main body 3 and pedestal 4.
As shown in Fig. 2, being equipped with single-chip microcontroller in the electronics storehouse 1, the present embodiment selects ATmega328P single-chip microcontroller, described Display screen 11 is provided on 1 side wall of electronics storehouse, the display screen 11 is connect with single-chip microcomputer signal.As shown in figure 4, the top cover 2 On be provided with filler 21.
As shown in Figure 5 and Figure 8, air inlet 31 and venthole 32,31 edge of air inlet are provided on 3 side wall of main body 3 side wall of main body is connected to downwards the air flue 33 of 3 bottom end of main body, and 33 end of air flue connects stomata 34, and the stomata 34 passes through 3 bottom end of main body is connected to inside main body 3, and the venthole 32 is connected to inside main body 3.
Photoelectric sensor is installed on 3 one end side wall of main body, transmitter, the present embodiment are installed on other end side wall Transmitter selects 5mm infrared emission tube, and photoelectric sensor selects 5mm infrared receiver tube, and the photoelectric sensor is for connecing The signal of emitter is received and dispatched, the photoelectric sensor and transmitter are connect with single-chip microcomputer signal；3 inner bottom of main body is hinged There is turnover panel 5, as depicted in figs. 11-12, there are two symmetrical gas storehouses 51 for 5 bottom end of the turnover panel setting, and 5 top of turnover panel is provided with Block protrusion 52.
As the prioritization scheme of the utility model, as shown in fig. 6-7, it is provided on the side wall at 3 both ends of main body recessed Slot 35,35 upper end of groove offer aperture, and a groove 35 installs the photoelectric sensor by photoelectric sensor mounting hole 36, Another groove 35 installs the transmitter by transmitter mounting hole 37, and the photoelectric sensor and transmitter pass through top cover 2 On wiring board through-hole 22 connect with single-chip microcomputer signal, be provided with mark in two grooves 35, in the present embodiment, photoelectric sensing " R " font is carved with where device in groove 35, is carved with " E " font, the photoelectric sensor mounting hole in groove 35 where transmitter Transmitter mounting hole 37 described in 36 faces.
As the prioritization scheme of the utility model, as depicted in figs. 11-12, the turnover panel 5 is triangular structure, two gas storehouses 51 divide gas baffle 53 to be spaced by intermediate, the 5 top both ends of turnover panel be provided with it is multiple with repeated hole 54, it is described to match repeated hole 54 Face where the outlet of both ends is inclined ramp.
As the prioritization scheme of the utility model, axis hole 55, photoelectric sensor place are provided in the middle part of 5 lower end of turnover panel It is provided with axis fixation hole 38 in groove 35, is provided with axis in groove 35 where transmitter and enters hole 39, rotating plate shaft sequentially passes through axis and enters Hole 39, axis hole 55 and axis fixation hole 38.
The baffle cooperated there are two being arranged as the prioritization scheme of the utility model, on 4 side wall of pedestal with groove 35 41, as shown in Fig. 8,9 and 10.
As the prioritization scheme of the utility model, the 3 upper end side wall of main body is equipped with water level observation window 39-1, and water level is seen It examines and is equipped with water level groove in the middle part of window 39-1.
As the prioritization scheme of the utility model, water-stop sheet 42, the water-stop sheet 42 and air flue are provided on the pedestal 4 The contact of 33 bottom ends, as shown in Figure 10.
As the prioritization scheme of the utility model, 1 back of electronics storehouse is provided with power interface 12 and reset hole 13, such as Shown in Fig. 3.
As the prioritization scheme of the utility model, plug 23 is installed on the filler 21, as shown in Figure 1.
As the prioritization scheme of the utility model, the material of the main body 3 is ABS plastic, and the sealant in main body 3 is silicon Rubber, the photoelectric sensor and launcher shell are PC material.
In order to better understand the utility model, primary complete description is made to the working principle of the utility model below:
1, the plug 23 for opening filler 21, adds water to water level observation window 39-1 middle line, and get back into plug 23；
2, the gas that laboratory ferment experiment generates is connected to air inlet 31 by admission line；
3, gas enters air inlet 31, and the stomata 34 of 3 bottom of main body is reached by air flue 33；
4, the gas emerged from stomata 34 by divide gas baffle 53 lead into left side gas storehouse 51, due to matching in left end Counterweight is installed in repeated hole 54, the gas storehouse 51 of left end covers stomata 34, after the gas in gas storehouse 51 reaches certain volume, buoyancy When produced torque is more than counterweight and triangle turnover panel self weight formed torque, turnover panel swings to right end, and ejecting/collecting gas is right The gas storehouse 51 at end covers stomata 34, at the same with block protrusion 52 block be installed on transmitter mounting hole 37 transmitter issue it is red Outside line causes the photoelectric sensor for being installed on photoelectric sensor mounting hole 36 to generate a signal, and is recorded and changed by single-chip microcontroller It calculates；
5, conversion, which is obtained a result, adds up, and is shown on display screen 11；
6, after the gas in right end gas storehouse 51 reaches certain volume, torque produced by buoyancy is more than that counterweight and triangle turn over When plate the formed torque of self weight, turnover panel 5 swings to left end, and ejecting/collecting gas is repeated in, and is able to record flow.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (10)

1. a kind of use for laboratory small-flow gas flowmeter, it is characterised in that: including the electronics storehouse being successively arranged from top to down (1), top cover (2), main body (3) and pedestal (4)；
Single-chip microcontroller is installed in the electronics storehouse (1), is provided with display screen (11), the display on electronics storehouse (1) side wall Screen (11) is connect with single-chip microcomputer signal；
Filler (21) are provided on the top cover (2)；
Air inlet (31) and venthole (32) are provided on main body (3) side wall, the air inlet (31) is along main body (3) side wall It is connected to the air flue (33) of main body (3) bottom end downwards, air flue (33) end connects stomata (34), and the stomata (34) passes through Main body (3) bottom end is connected to main body (3) inside, and venthole (32) connection main body (3) is internal；
Photoelectric sensor is installed on the side wall of described main body (3) one end, transmitter, the photoelectric transfer are installed on other end side wall Sensor is used to receive the signal of transmitter, and photoelectric sensor and transmitter are connect with single-chip microcomputer signal；The main body (3) is internal Bottom end is hinged with turnover panel (5), and there are two symmetrical gas storehouse (51), turnover panel (5) the top settings for turnover panel (5) the bottom end setting Block raised (52).
2. a kind of use for laboratory small-flow gas flowmeter according to claim 1, it is characterised in that: the main body (3) It is provided on the side wall at both ends groove (35), groove (35) upper end offers aperture, and a groove (35) passes through photoelectric sensing Device mounting hole (36) installs the photoelectric sensor, another groove (35) installs the transmitting by transmitter mounting hole (37) Device, the photoelectric sensor and transmitter are connect by the wiring board through-hole (22) on top cover (2) with single-chip microcomputer signal, and two recessed Mark, transmitter mounting hole (37) described in photoelectric sensor mounting hole (36) face are provided in slot (35).
3. a kind of use for laboratory small-flow gas flowmeter according to claim 2, it is characterised in that: the turnover panel (5) For triangular structure, two gas storehouses (51) divide gas baffle (53) to be spaced by intermediate, both ends setting at the top of the turnover panel (5) Have it is multiple with repeated hole (54), it is described exported with repeated hole (54) both ends where face be inclined ramp.
4. a kind of use for laboratory small-flow gas flowmeter according to claim 3, it is characterised in that: the turnover panel (5) It is provided with axis hole (55) in the middle part of lower end, is provided with axis fixation hole (38) in groove (35) where photoelectric sensor, where transmitter It is provided with axis in groove (35) to enter hole (39), rotating plate shaft sequentially passes through axis and enters hole (39), axis hole (55) and axis fixation hole (38).
5. a kind of use for laboratory small-flow gas flowmeter according to claim 4, it is characterised in that: the pedestal (4) The baffle (41) cooperated there are two being arranged on side wall with groove (35).
6. a kind of use for laboratory small-flow gas flowmeter according to claim 1, it is characterised in that: the main body (3) Upper end side wall is equipped with water level observation window (39-1), and water level groove is equipped in the middle part of water level observation window (39-1).
7. a kind of use for laboratory small-flow gas flowmeter according to claim 1, it is characterised in that: the pedestal (4) On be provided with water-stop sheet (42), the water-stop sheet (42) contacts with air flue (33) bottom end.
8. a kind of use for laboratory small-flow gas flowmeter according to claim 1, it is characterised in that: the electronics storehouse (1) back is provided with power interface (12) and reset hole (13).
9. a kind of use for laboratory small-flow gas flowmeter according to claim 1, it is characterised in that: the filler (21) plug (23) are installed on.
10. a kind of use for laboratory small-flow gas flowmeter according to claim 1, it is characterised in that: the main body (3) Material be ABS plastic, the sealant in main body (3) is silicon rubber, and the photoelectric sensor and launcher shell are PC material.
CN201821043793.5U 2018-07-03 2018-07-03 A kind of use for laboratory small-flow gas flowmeter Active CN208296920U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821043793.5U CN208296920U (en) 2018-07-03 2018-07-03 A kind of use for laboratory small-flow gas flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821043793.5U CN208296920U (en) 2018-07-03 2018-07-03 A kind of use for laboratory small-flow gas flowmeter

Publications (1)

Publication Number Publication Date
CN208296920U true CN208296920U (en) 2018-12-28

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ID=64700129

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821043793.5U Active CN208296920U (en) 2018-07-03 2018-07-03 A kind of use for laboratory small-flow gas flowmeter

Country Status (1)

Country Link
CN (1) CN208296920U (en)

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