CN209197844U - Limnograph - Google Patents
Limnograph Download PDFInfo
- Publication number
- CN209197844U CN209197844U CN201920220861.9U CN201920220861U CN209197844U CN 209197844 U CN209197844 U CN 209197844U CN 201920220861 U CN201920220861 U CN 201920220861U CN 209197844 U CN209197844 U CN 209197844U
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- China
- Prior art keywords
- limnograph
- water level
- liquid level
- spiral shell
- scale
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Abstract
The utility model relates to a kind of limnographs comprising: fixed plate with a scale makes micrometer be maintained at vertical measurement direction and can move different location above the water surface；Accurate spiral shell button, micro-displacement is realized with rotational angle, and the fractional part of measurement result is read from the evenly divided on microdrum circumference；Scale is counted, is used cooperatively with accurate spiral shell button, to measure the water level elevation of liquid level to be measured；Water level probe is set to counts below scale and accurate spiral shell button in a manner of moving up and down, to explore downward to liquid level to be measured, to match total number scale and accurate spiral shell button to measure the relative elevation of water level；Water level probe is a hollow pipe, and the light source that the upper end setting one of the hollow tube cavity is aimed downwardly, a convex lens is arranged in the lower end of the hollow tube cavity.This limnograph can overcome laboratory sink fluctuation liquid level to have vision dead zone caused by simulation emergent aquactic plant, especially suitable for the measurement of higher degree at the vegetation region water flow liquid level multiple spot of laboratory.
Description
Technical field
The utility model belongs to level measuring field, and in particular to one kind has simulation to overcome laboratory sink to fluctuate liquid level
Emergent aquactic plant causes vision dead zone and to the limnograph that existing level measuring tool is improved, such limnograph
Especially suitable for the measurement of higher degree at the vegetation region water flow liquid level multiple spot of laboratory.
Background technique
In the research fields such as water ecological setting simulation and water and soil conservation, it usually needs it is real to carry out laboratory sink simulation
It tests, this is a kind of common method one of of the research containing vegetation open channel hydraulic elements, and then is existed by this experimental analysis pollutant
The disperse process of wetland, needs accurately to measure at this time the water depth value for flowing through vegetation and " plant " choked flow causes the water surface of variation
Line --- with the water level micrometer of precision 0.01mm, the measuring point elevation at the water surface wide 1/4B, 1/2B, 3/4B.In this test, lead to
It is often to measure respectively in 5 equidistant sections of vegetation region label, connect into water surface curve.
In above-mentioned experiment, when existing water level miking contains the water flow of simulation vegetation, usually there is following lack
Point:
1. simulation vegetation is sparseness structure, the contact point of the probe tip and the water surface that lead to micrometer is likely located at blind area；
2. free surface uneven distribution is led to due to the presence in water body vegetation boundary layer, though there is flow steadying grid, due to water
The presence in body vegetation boundary layer leads to free surface elevation uneven distribution, it is difficult to accurately measure actual water level；
3. the water level perpendicular to flow direction is unevenly distributed, cause the measuring point that need to be set more, repeatedly reading easily causes view
Fatigue influences the accuracy of liquid level judgement and reading.
Therefore, those skilled in the art expect a kind of limnograph is provided, to can amplifying probe contacted with the water surface
Observable effect, improve measurement accuracy and measurement efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of limnograph, to can amplifying probe contacted with the water surface can
Effect is observed, measurement accuracy and measurement efficiency are improved.It has been had now surprisingly been found that, by using the utility model design
Limnograph can overcome laboratory sink fluctuation liquid level to cause the difficulty of vision dead zone when having simulation emergent aquactic plant, this
Kind of limnograph is especially suitable for the measurement of higher degree at the vegetation region water flow liquid level multiple spot of laboratory, and the limnograph energy
The Observable effect that enough amplifying probes are contacted with the water surface, improves measurement accuracy and measurement efficiency.
The limnograph of the utility model is made on the basis of existing portable general limnograph changes
Into, be illustrated in conjunction with each attached drawing, first combined with Figure 1 and Figure 2, specifically, the utility model relates to limnograph (its
It is that long micrometer is surveyed using accurate thread principle, the level measuring especially suitable for laboratory sink fluctuation liquid level), comprising:
Fixed plate with a scale makes micrometer be maintained at vertical measurement direction and can move different location above the water surface；
Accurate spiral shell button realizes micro-displacement with rotational angle, and the fractional part of measurement result is from microdrum circumference
50 evenly divideds read；
Scale is counted, is used cooperatively with accurate spiral shell button, to measure the water level elevation of liquid level to be measured；
Water level probe is set to counts below scale and accurate spiral shell button in a manner of moving up and down, to explore downward to
Liquid level to be measured, to measure the relative elevation of water level with accurate spiral shell button with total number scale；
It is characterized in that, the water level probe is a hollow pipe, what the upper end setting one of the hollow tube cavity was aimed downwardly
A convex lens is arranged in the lower end of light source, the hollow tube cavity.
Limnograph according to the present utility model, which is characterized in that the precision spiral shell button per revolution, i.e., along axis
A mobile screw pitch, the number of full circle of rotation is read from the scale on fixed sleeving.
Limnograph according to the present utility model, which is characterized in that when carrying out level measuring, the lower end of water level probe
As relative elevation reads point when being exactly in contact with liquid level to be measured.
Limnograph according to the present utility model, which is characterized in that when carrying out level measuring, the water level probe
Lower end is exactly in contact with liquid level to be measured, refers to the transient process of following A, B two states:
A) the apparent clear glistening light of waves is presented in the liquid level of prepare liquid in the light irradiated out of water level probe hollow pipe；
B) light irradiated out of water level probe hollow pipe in the form of stable light beam under liquid level to be measured and to
Survey irradiation in liquid.
Limnograph according to the present utility model, which is characterized in that the limnograph is also used cooperatively with support plate,
The support plate is the limnograph to be fixed on sink.
Limnograph according to the present utility model, which is characterized in that the light source is LED light.
Limnograph according to the present utility model, which is characterized in that the light source is micro LED lamp pearl.
In the present invention, the light source and convex lens are set to the inner cavity of the hollow pipe of course.
The limnograph of the utility model is a kind of limnograph improved to existing level measuring tool,
It can be efficiently against simulation emergent aquactic plant to vision dead zone caused by the observation of laboratory sink liquid level, such limnograph
Especially suitable for the measurement of higher degree at the vegetation region water flow liquid level multiple spot of laboratory.
Particularly, the limnograph of the utility model can be efficiently used in research soil and water conservation and practice, be carried out
Laboratory sink simulated experiment, this test are related to containing vegetation open channel hydraulic elements, can analyze pollutant wetland more
The process of dissipating can be measured efficiently and effectively at this time because " plant " choked flow causes the water surface curve of variation, by the utility model
Limnograph can amplify the Observable effect that level measuring probe is contacted with the water surface, improve measurement accuracy and measurement is imitated
Rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model limnograph.
Fig. 2 is the structural schematic diagram of the water level probe of the utility model limnograph.
Specific embodiment
The utility model can be further described by the following examples, however, the model of the utility model
It encloses and is not limited to following embodiments.One of skill in the art is it is understood that in the spirit and scope without departing substantially from the utility model
Under the premise of, various change and modification can be carried out to the utility model.The utility model is to the material arrived used in test
And test method carries out general and/or specific description.Although to realize many materials used in the utility model aim
Material and operating method are it is known in the art that still the utility model is still described in detail as far as possible herein.
The various embodiments of the utility model are described in detail with reference to the accompanying drawings.
Fig. 1 schematically depicts the structure of the limnograph 1 of the utility model, and Fig. 2 schematically depicts this reality
With the structure of the water level probe of novel water level meter.The limnograph 1 of the utility model is surveyed using accurate thread principle
Long micrometer, especially suitable for the measurement of higher degree at the vegetation region water flow liquid level multiple spot of laboratory.The limnograph 1 includes:
Fixed plate 2 with a scale makes micrometer be maintained at vertical measurement direction and can move different location above the water surface
It is dynamic；
Accurate spiral shell button 3 realizes micro-displacement with rotational angle, and the fractional part of measurement result is from microdrum circumference
50 evenly divideds read；
Scale 4 is counted, is used cooperatively with accurate spiral shell button 3, to measure the water level elevation of liquid level to be measured；
Water level probe 5 is set to counts scale 4 and accurate 3 lower section of spiral shell button in a manner of moving up and down, to test
To liquid level to be measured, so that the relative elevation of water level is measured with accurate spiral shell button 3 with total number scale 4；
It is characterized in that, the water level probe 5 is a hollow pipe 51, the upper end setting one of 51 inner cavity of hollow pipe is shone downwards
A convex lens 53 is arranged in the lower end of the light source 52 penetrated, 51 inner cavity of hollow pipe.
In an embodiment of the utility model limnograph 1,3 per revolution of precision spiral shell button, i.e. edge
Axis moves a screw pitch, and the number of full circle of rotation is read from the scale on fixed sleeving.
In an embodiment of the utility model limnograph 1, when carrying out level measuring, water level probe 5
As relative elevation reads point when lower end and liquid level to be measured are exactly in contact with.
In an embodiment of the utility model limnograph 1, when carrying out level measuring, the water level probe
5 lower end is exactly in contact with liquid level to be measured, refers to the transient process of following A, B two states:
A) apparent clear wave is presented in the liquid level of prepare liquid in the light irradiated out of water level probe 5 hollow pipe 51
Light；
B) light irradiated out of water level probe 5 hollow pipe 51 in the form of stable light beam under liquid level to be measured and
Irradiation in prepare liquid.
In an embodiment of the utility model limnograph 1, the limnograph 1 is also matched with support plate 6
It closes and uses, the support plate 6 is the limnograph 1 to be fixed on sink.
The limnograph of the utility model is further described below.
The limnograph of the utility model dredges vegetation when can overcome the level measuring of laboratory sink fluctuation liquid level
The sight blind area blocked more readily determines the probe of micrometer with whether the water surface contacts.
Limnograph according to the present utility model, the light source 52 inside the hollow pipe 51 of middle water level probe 5 can be
LED light, particularly preferably micro LED lamp pearl.When carrying out level measuring, the light beam projected from the light source 52 goes out downwards
It penetrates, optical phenomenon when " syringe needle is not in contact with the water surface " and " syringe needle is completely immersed in the water surface " is completely different and easily observes, two shapes
The transition section elevation of state is almost the same, can easily wherein take a height as the point height of the position.
In addition, installing convex lens 53 by the lower port inside 5 hollow pipe 51 of water level probe, point light source is enabled to
Diverging light convergence is a branch of stronger directional light.In use, light is along probe tip direction, towards directive water surface straight down
Elevation measuring point.When 5 lower end of water level probe (i.e. syringe needle) completely not in contact with the water surface when, due to water flow fluctuation, liquid level relative level side
To for random inclined surface, form the angle less than 90 degree with light, thus the liquid level that can be fluctuated of the light projected out of hollow pipe 5 to
Different directions reflection, it is seen that the apparent clear glistening light of waves；Part is refracted into water, and emergent light is weaker.When 5 lower end of water level probe is visited completely
When below upstream face, reflection and refraction of the light without interface are directly emitted into water, generate straight down stable relatively strong
Light beam.
Above-mentioned syringe needle is completely immersed in the water surface not in contact with the water surface and syringe needle, the path difference of the light of two kinds of situations it is very significant and
It easily observes, is also easily to observe when even if blocking observation visual angle due to vegetation presence.In particular, the brightness in laboratory
Lower, phenomenon is more obvious.Elevation span is very for transition region (water flow discontinuously touch probe, flickering) between two states
Small, observer can take a height as the point height of the position in this minizone according to the actual situation.It is surveyed using this water level
Meter can be effectively reduced with deviation caused by naked eye conjecture, while experiment effect can be effectively improved when data sample capacity is big
Rate slows down and uses asthenopia.
In the description of the present invention, it should be understood that when referring to, term " center ", " longitudinal direction ", " transverse direction ",
" length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom"
The orientation or positional relationship of the instructions such as "inner", "outside", " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the utility model.
In addition, term " first ", " second " are used for description purposes only when referring to, it is not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can
To explicitly or implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is
Two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, when referring to, term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or at one
Body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, when referring to, reference term " one embodiment ", " some embodiments ", " example ",
The description of " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, structure, material
Or feature is contained at least one embodiment or example of the utility model.In the present specification, above-mentioned term is shown
The statement of meaning property need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described
It may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this
The technical staff in field can be by the spy of different embodiments or examples described in this specification and different embodiments or examples
Sign is combined.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (7)
1. a kind of limnograph, comprising:
Fixed plate with a scale makes micrometer be maintained at vertical measurement direction and can move different location above the water surface；
Accurate spiral shell button, realizes micro-displacement with rotational angle, and the fractional part of measurement result is from 50 on microdrum circumference
A evenly divided is read；
Scale is counted, is used cooperatively with accurate spiral shell button, to measure the water level elevation of liquid level to be measured；
Water level probe is set to counts below scale and accurate spiral shell button in a manner of moving up and down, to be measured to explore downward to
Liquid level, to measure the relative elevation of water level with accurate spiral shell button with total number scale；
It is characterized by:
The water level probe is a hollow pipe, one light source that is aimed downwardly of upper end setting of the hollow tube cavity, in the hollow pipe
A convex lens is arranged in the lower end of chamber.
2. limnograph according to claim 1, which is characterized in that the precision spiral shell button per revolution, i.e., along axis
Line moves a screw pitch, and the number of full circle of rotation is read from the scale on fixed sleeving.
3. limnograph according to claim 1, which is characterized in that when carrying out level measuring, under water level probe
As relative elevation reads point when end is exactly in contact with liquid level to be measured.
4. limnograph according to claim 3, which is characterized in that when carrying out level measuring, the water level probe
Lower end be exactly in contact with liquid level to be measured, refer to the transient process of following A, B two states:
A) the apparent clear glistening light of waves is presented in the liquid level of prepare liquid in the light irradiated out of water level probe hollow pipe；
B) light irradiated out of water level probe hollow pipe is in the form of stable light beam under liquid level to be measured and in prepare liquid
Interior irradiation.
5. limnograph according to claim 1, which is characterized in that the limnograph also makes with support plate cooperation
With the support plate is the limnograph to be fixed on sink.
6. limnograph according to claim 1, which is characterized in that the light source is LED light.
7. limnograph according to claim 1, which is characterized in that the light source is micro LED lamp pearl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220861.9U CN209197844U (en) | 2019-02-21 | 2019-02-21 | Limnograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220861.9U CN209197844U (en) | 2019-02-21 | 2019-02-21 | Limnograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209197844U true CN209197844U (en) | 2019-08-02 |
Family
ID=67431923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920220861.9U Expired - Fee Related CN209197844U (en) | 2019-02-21 | 2019-02-21 | Limnograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209197844U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683361A (en) * | 2019-10-19 | 2021-04-20 | 南京晨全机械制造有限公司 | Be applied to liquid level detection device's a lot of measuring mechanism |
-
2019
- 2019-02-21 CN CN201920220861.9U patent/CN209197844U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683361A (en) * | 2019-10-19 | 2021-04-20 | 南京晨全机械制造有限公司 | Be applied to liquid level detection device's a lot of measuring mechanism |
| CN112683361B (en) * | 2019-10-19 | 2024-04-12 | 南京晨全机械制造有限公司 | Multi-time measuring mechanism applied to liquid level detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190802 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |