CN202092643U

CN202092643U - Electronic level meter

Info

Publication number: CN202092643U
Application number: CN 201120181583
Authority: CN
Inventors: 朱葛俊; 吴忆峰
Original assignee: Changzhou Vocational Institute of Mechatronic Technology
Current assignee: Changzhou Vocational Institute of Mechatronic Technology
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2011-12-28
Anticipated expiration: 2021-05-31

Abstract

The utility model relates to an electronic level meter, comprising an aluminium alloy shell; a liquid detection switch, a control and indication circuit, a power supply, a power switch and a liquid level indicator which are arranged in the shell, wherein the parts are electrically connected mutually; and the power switch and the liquid level indicator extend out from an internal side of the shell to an external side of the shell. By adopting the utility model, the inclination direction of an object surface can be conveniently and fast detected only by observing light-emitting diodes on two ends of the level meter, and the inclination direction of the object surface can be detected and observed even in the dark or in a dim light environment.

Description

A kind of electrolevel

Technical field

The utility model relates to a kind of electrolevel, has mainly solved common level meter at night or the defective that is not easy to see clearly in dimly lit environment.

Background technology

At present, the common level meter of Xiao Shouing mainly is to judge whether level of plane by the bubble move left and right in the liquid on the market, and so common level meter is not easy to see clearly at night or in the environment of dim light.

The present great majority of electrolevel are made according to optical imaging concept and sensor technology, its complex structure, and cost is higher, and price is more expensive, and easy care is not indicated not eye-catching under the dim light situation.

The utility model content

The technical problems to be solved in the utility model is: even propose a kind of electrolevel that also can see horizontality under the situation of insufficient light clearly.

The technical scheme that the utility model adopted is: a kind of electrolevel, comprise aluminum alloy casing, and be provided with liquid detector switch, control and indicating circuit, power supply, power switch and fluid level gauge in the described shell, be electrical connection between the each several part; Described power switch and fluid level gauge extend out to housing exterior by enclosure.

Specifically, liquid detector switch described in the utility model has a plastic casing, be loaded with conducting liquid in the described plastic casing, the two ends ecto-entad of plastic casing is inserted with two electrodes respectively to conducting liquid, all have electrode unsettled and equidistantly be arranged on the conducting liquid surface in set two electrodes of every end, another root electrode of every end inserts in conducting liquid; Described four electrodes all are connected with control and indicating circuit.

Further, in order to save cost and to strengthen conductive effect, conducting liquid described in the utility model is a mineral water, and described electrode is a tinsel.

In addition, control described in the utility model and indicating circuit are transistor circuit, and its enlargement factor is 200～250 times; Described power source voltage is 4.5～5V; Described fluid level gauge is a light emitting diode.。

Principle of work of the present utility model is: utilize high sensitivity fluid level switch and illuminating circuit to drive two light emitting diodes, when the complete level of object surfaces, two light emitting diodes all do not work; A body surface left side if high right low (being tilted to the right), the diode on the right is bright, and the inclination angle is big more, brighter display; Otherwise a right high left side low (being tilted to the left), then left side diode is bright, and brightness also increases along with the increase at inclination angle.

The beneficial effects of the utility model are: only need the light emitting diode at eye-level instrument two ends just can conveniently detect the vergence direction of body surface, even and also can detect and observe in the environment of dark or dim light.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation of preferred embodiment of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model;

Fig. 3 is a theory diagram of the present utility model;

Among the figure: 1, shell; 2, power switch; 3, fluid level gauge.

Embodiment

With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

As shown in Figure 1, a kind of electrolevel comprises aluminum alloy casing 1, is provided with liquid detector switch, control and indicating circuit, power supply, power switch 2 and fluid level gauge 3 in the described shell 1, is electrical connection between the each several part; Described power switch 2 and fluid level gauge 3 extend out to housing exterior by enclosure.

Described aluminum alloy casing is to be used for fixing liquid detector switch, control and indicating circuit, power switch etc., so that form the shell of a sealing.

The liquid detector switch has a plastic casing that is made by transparent hard moulding material, be loaded with conducting liquid in the described plastic casing, the two ends ecto-entad of plastic casing is inserted with two electrodes respectively to conducting liquid, all have electrode unsettled and equidistantly be arranged on the conducting liquid surface in set two electrodes of every end, another root electrode of every end inserts in conducting liquid; Described four electrodes all are connected with control and indicating circuit.Four electrodes adopt and are difficult for by the tinsel of water erosion (as the lead of nickel plating, chromium plating), with the marine glue cementation sealing of microbit punching back.In order to improve sensitivity, liquid detector switch length as far as possible more greatly, above two electrodes will be as far as possible near the water surface, obvious for making effect, liquid adopts mineral water.

Control and display circuit adopt enlargement factor to be about 200 transistor circuit; Supply voltage is 4.5V, is composed in series by three No. 5 batteries of joint (also can be No. 7 batteries); Power switch adopts small-sized locking press button switch, is mainly used to control the power supply that provides to indicating circuit; Fluid level gauge is high-brightness LED pilot lamp (high brightness LED).

The principle of work of the present utility model and the course of work are shown in Fig. 2,3: when the plane complete level surveyed, the resistance between electrode C and electrode A, the B is infinity, and two triodes all are in cut-off state, about two diodes not luminous.When the plane is tilted to the left, owing to electrode A contacts with water, the resistance decreasing between A, C, the triode conducting on the left side, the lumination of light emitting diode on the left side, the pitch angle is big more, and the resistance between A, the C is more little, and light emitting diode is bright more; When the plane is tilted to the right, because electrode B contacts with water, the resistance decreasing between B, the C, the triode conducting on the right, the light emitting diode on the right is shinny, and the pitch angle is big more, and B, C resistance are more little, and light emitting diode is bright more.

What describe in the above instructions is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the technical field after having read instructions can to before described embodiment make an amendment or be out of shape, and do not deviate from the essence and the scope of utility model.

Claims

1. an electrolevel comprises aluminum alloy casing (1), it is characterized in that: be provided with liquid detector switch, control and indicating circuit, power supply, power switch (2) and fluid level gauge (3) in the described shell (1), be electrical connection between the each several part; Described power switch and fluid level gauge (3) extend out to housing exterior by enclosure.

2. electrolevel as claimed in claim 1, it is characterized in that: described liquid detector switch has a plastic casing, be loaded with conducting liquid in the described plastic casing, the two ends ecto-entad of plastic casing is inserted with two electrodes respectively to conducting liquid, all have electrode unsettled and equidistantly be arranged on the conducting liquid surface in set two electrodes of every end, another root electrode of every end inserts in conducting liquid; Described four electrodes all are connected with control and indicating circuit.

3. electrolevel as claimed in claim 2 is characterized in that: described conducting liquid is a mineral water, and described electrode is a tinsel.

4. electrolevel as claimed in claim 1 is characterized in that: described control and indicating circuit are transistor circuit, and its enlargement factor is 200～250 times.

5. electrolevel as claimed in claim 1 is characterized in that: described power source voltage is 4.5～5V.

6. electrolevel as claimed in claim 1 is characterized in that: described fluid level gauge is a light emitting diode.