CN208704837U - A kind of liquid level detection device - Google Patents
A kind of liquid level detection device Download PDFInfo
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- CN208704837U CN208704837U CN201821782627.7U CN201821782627U CN208704837U CN 208704837 U CN208704837 U CN 208704837U CN 201821782627 U CN201821782627 U CN 201821782627U CN 208704837 U CN208704837 U CN 208704837U
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- installation cavity
- liquid level
- level detection
- shell
- detection device
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Abstract
The utility model discloses a kind of liquid level detection devices, it is related to Technology of Level Detection field, specially a kind of liquid level detection device, including shell and cabinet, the side of the shell offers right angle gap, cabinet is connected in the inside of right angle gap, the inside of shell is respectively arranged with the first installation cavity, the second installation cavity and third installation cavity, first installation cavity and the second installation cavity are located at the two sides of right angle gap, the inside of first installation cavity is connected with luminescent device, and the inside of the second installation cavity is connected with sensor devices.The liquid level detection device, by the way that main control chip is arranged, so that light emitting device pulse is shone, by voltage detecting circuit, the light of sensor devices is detected, judge corresponding position with the presence or absence of liquid, cabinet is snapped fit onto the inside of right angle gap, and then the liquid level of box house can be detected, both hands help two handpieces respectively during detection, the stability for increasing detection device realizes purpose easy to use.
Description
Technical field
The utility model relates to Technology of Level Detection field, specially a kind of liquid level detection device.
Background technique
Current level sensing scheme, mainly there is resistance-type, condenser type, floatage-type, photo-electric and ultrasonic type etc..Resistance-type
Need to two electrodes (or more) whether contact liquid to be detected with the difference of air and liquid resistance have depositing for liquid to distinguish
Because electrode need to be connect with detection circuit, thus be poorly suitable for the application context that water tank needs to take away, also because of two resistance
It needs to add the reason of certain voltage, is easy fouling；Condenser type is the dielectric constant different from water using air as judgment basis.It uses
It is convenient, but be easy to be influenced by ambient temperature and humidity and various extraneous factors, the application context taken away is needed especially for water tank,
There are also to be assessed for the precision and reliability used；Floatage-type mainly utilizes tongue tube, and magnet and floating ball is cooperated to detect liquid height
Degree, structure is quite cumbersome, and is easy to shelter evil people and countenance evil practices, bad cleaning；Photo-electric is judgement with the air refractive index different from water
Foundation.But existing publication, the transmitting and reception of light are on the same face.Thus, there are liquid and cistern free (i.e. no liquid)
Obscure, needs extra means detection water tank whether in place.And water tank is also required to specific structure to cooperate detection, greatly limits it
Application range；Ultrasonic type judges liquid height using the interval transit time that reflection liquid returns.But there are blind areas, on the high side, knot
Situations such as structure is complex, it should be limited in scope.
It can be seen that all there is disadvantage in the above several frequently seen liquid-level detecting method, it is therefore desirable to which a collection is simple, easy-to-use
With reliable liquid level detection device, without contacting liquid to be detected, not influenced by ambient temperature and humidity, transported without machinery in detection process
Dynamic component can identify whether water tank is in place, and detection is precisely, cheap, so a kind of liquid level detection device is proposed, to solve
Problem above.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of liquid level detection device, solves above-mentioned background skill
The problem of being proposed in art.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of liquid level detection device, packet
Shell and cabinet are included, the side of the shell offers right angle gap, and cabinet is connected in the inside of right angle gap, the inside of shell
It is respectively arranged with the first installation cavity, the second installation cavity and third installation cavity, the first installation cavity and the second installation cavity are located at directly
The two sides of angle gap, the inside of the first installation cavity are connected with luminescent device, and the inside of the second installation cavity is connected with sensor devices, the
The inside of three installation cavitys is connected with main control chip, and luminescent device and sensor devices are electrically connected with main control chip.
Optionally, the main control chip is fixedly connected with call wire, and call wire is through to the outside of shell.
Optionally, the model HT66F002 of the main control chip.
Optionally, the side of the outer surface of outer cover is fixedly connected with the first handpiece, and the other side of outer surface of outer cover is solid
Surely it is connected with the second handpiece.
Optionally, the type of the cabinet is divided into transparent and two kinds opaque.
Optionally, the shell is insulation and lighttight PVC material.
(3) beneficial effect
The utility model provides a kind of liquid level detection device, have it is following the utility model has the advantages that
1, the liquid level detection device makes light emitting device pulse shine, in the circuit of sensor devices by the way that main control chip is arranged
In, partiting dc circuit is set with the interference of filtering environmental light, after filtering environmental light, by voltage detecting circuit, to sensor devices
Light detected, and then judge corresponding position with the presence or absence of liquid, when the inside of cabinet is air, luminescent device is issued
Light can be by secondary refraction, thus light receiving element receives light, and sensor detection can be to no liquid in water tank, when cabinet
When inside is liquid, liquid (major part) and transparent water tank refractive index are similar, light no longer bounce back receiving device end, receiver
Part does not receive light, and sensor detects there is liquid in water tank, realizes convenient for detection and detection.
2, the liquid level detection device can snap fit onto cabinet right angle gap by opening up right angle gap on the shell
Inside, and then the liquid level of box house can be detected, both hands help two handpieces respectively during detection, increase
The stability for having added detection device realizes purpose easy to use.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the schematic diagram of the section structure of the utility model shell；
Fig. 3 is the circuit diagram of the utility model.
In figure: 1- shell, 2- cabinet, the right angle 3- gap, the first installation cavity of 4-, the second installation cavity of 5-, 6- third installation cavity,
7- luminescent device, 8- sensor devices, 9- main control chip, 10- call wire, the first handpiece of 11-, the second handpiece of 12-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
It please refers to Fig.1 to Fig.3, the utility model provides a kind of technical solution: a kind of liquid level detection device, including shell 1
With cabinet 2, the side of 1 outer surface of shell is fixedly connected with the first handpiece 11, and the other side of 1 outer surface of shell is fixedly connected with
Second handpiece 12, both hands help two handpieces respectively during detection, increase the stability of detection device, realize
Purpose easy to use, the type of cabinet 2 are divided into transparent and two kinds opaque, and convenient for the propagation of light, shell 1 is to insulate and not
The PVC material of light transmission, the side of shell 1 offer right angle gap 3, can be case by opening up right angle gap 3 on shell 1
Body 2 snaps fit onto the inside of right angle gap 3, and then can detect to the liquid level inside cabinet 2, and cabinet 2 is connected in right angle and slits
The inside of mouth 3, the inside of shell 1 are respectively arranged with the first installation cavity 4, the second installation cavity 5 and third installation cavity 6, are arranged three
Installation cavity plays the purpose being easily installed, and the first installation cavity 4 and the second installation cavity 5 are located at the two sides of right angle gap 3, the
The inside of one installation cavity 4 is connected with luminescent device 7, and the inside of the second installation cavity 5 is connected with sensor devices 8, third installation cavity 6
Inside is connected with main control chip 9, and the model HT66F002 of main control chip 9 makes 7 arteries and veins of luminescent device by the way that main control chip 9 is arranged
Punching shines, and in the circuit of sensor devices 8, partiting dc circuit is arranged with the interference of filtering environmental light, after filtering environmental light, passes through
Voltage detecting circuit detects the light of sensor devices 8, and then judges corresponding position with the presence or absence of liquid, luminescent device 7
It is electrically connected with main control chip 9 with sensor devices 8, main control chip 9 is fixedly connected with call wire 10, and call wire 10 is through to outer
The outside of shell 1.
The working principle of the utility model is as follows: when the inside of cabinet 2 is air, the light meeting of the sending of luminescent device 7
It is reflected by 4 times, transparent water tank wall is injected by air for the first time, light is deviated to water tank direction, and second, water tank wall projects light
Line is injected water chamber, is reflected, radiation direction and luminescent device 7 project direction one to；For the third time, light is injected by cavity
Other side water tank wall, radiation direction are deviated toward sensor side；4th time, light is projected by water tank wall, and radiation direction restores, light
Receiving device receives light, and sensor detects, no liquid in water tank, and when the inside of cabinet 2 is liquid, light is by light emitting
After device issues, water tank is injected, is sent to refraction, because liquid (major part) and transparent water tank refractive index are similar, light is no longer rolled over
Be emitted back towards receiving device end, receiving device does not receive light, and sensor detects there is liquid in water tank, realize convenient for detection and
Detection.
In conclusion the liquid level detection device, in use, 7 pulsed illumination of luminescent device is made by setting main control chip 9,
In the circuit of sensor devices 8, partiting dc circuit is set with the interference of filtering environmental light, after filtering environmental light, is examined by voltage
Slowdown monitoring circuit detects the light of sensor devices 8, and then judges corresponding position with the presence or absence of liquid, when the inside of cabinet 2 is
When air, the light that luminescent device 7 issues can be reflected by 4 times, thus light receiving element receives light, and sensor detection can arrive
No liquid in water tank, when the inside of cabinet 2 is liquid, liquid (major part) and transparent water tank refractive index are similar, and light is no longer
Bounce back receiving device end, receiving device do not receive light, and sensor detects there is liquid in water tank, realize convenient for detection
And detection；By opening up right angle gap 3 on shell 1, cabinet 2 can be snapped fit onto the inside of right angle gap 3, and then can be right
Liquid level inside cabinet 2 is detected, and both hands help two handpieces respectively during detection, increases detection device
Stability realizes purpose easy to use.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In the present invention unless specifically defined or limited otherwise, term " setting ", " connected ", " connects " installation "
Connect ", the terms such as " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, can be directly connected, can also can be inside two elements indirectly connected through an intermediary
The interaction relationship of connection or two elements.For the ordinary skill in the art, it can manage as the case may be
Solve the concrete meaning of above-mentioned term in the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in the second spy
It can be that the first and second features directly contact or the first and second features are connect indirectly by intermediary "above" or "below" sign
Touching.Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or
Oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section "
" following " can be fisrt feature and be directly under or diagonally below the second feature, or is merely representative of first feature horizontal height and is less than
Second feature.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of liquid level detection device, including shell (1) and cabinet (2), it is characterised in that: the side of the shell (1) opens up
Have right angle gap (3), cabinet (2) is connected in the inside of right angle gap (3), and the inside of shell (1) is respectively arranged with the first installation
Chamber (4), the second installation cavity (5) and third installation cavity (6), the first installation cavity (4) and the second installation cavity (5) are located at right angle and slit
The two sides of mouth (3), the inside of the first installation cavity (4) are connected with luminescent device (7), and the inside of the second installation cavity (5) is clamped thoughts
Optical device (8), the inside of third installation cavity (6) are connected with main control chip (9), luminescent device (7) and sensor devices (8) with master
Chip (9) are controlled to be electrically connected.
2. a kind of liquid level detection device according to claim 1, it is characterised in that: the main control chip (9) is fixedly connected
Have call wire (10), call wire (10) is through to the outside of shell (1).
3. a kind of liquid level detection device according to claim 1, it is characterised in that: the model of the main control chip (9)
HT66F002。
4. a kind of liquid level detection device according to claim 1, it is characterised in that: the side of shell (1) outer surface
It is fixedly connected with the first handpiece (11), the other side of shell (1) outer surface is fixedly connected with the second handpiece (12).
5. a kind of liquid level detection device according to claim 1, it is characterised in that: the type of the cabinet (2) is divided into
It is bright and two kinds opaque.
6. a kind of liquid level detection device according to claim 1, it is characterised in that: the shell (1) be insulation and it is impermeable
The PVC material of light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821782627.7U CN208704837U (en) | 2018-10-31 | 2018-10-31 | A kind of liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821782627.7U CN208704837U (en) | 2018-10-31 | 2018-10-31 | A kind of liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208704837U true CN208704837U (en) | 2019-04-05 |
Family
ID=65948112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821782627.7U Active CN208704837U (en) | 2018-10-31 | 2018-10-31 | A kind of liquid level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208704837U (en) |
-
2018
- 2018-10-31 CN CN201821782627.7U patent/CN208704837U/en active Active
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