CN201293668Y

CN201293668Y - Liquid level detector

Info

Publication number: CN201293668Y
Application number: CNU2008201543062U
Authority: CN
Inventors: 王学利
Original assignee: Semiconductor Manufacturing International Shanghai Corp
Current assignee: Semiconductor Manufacturing International Beijing Corp
Priority date: 2008-10-21
Filing date: 2008-10-21
Publication date: 2009-08-19
Anticipated expiration: 2018-10-21

Abstract

The utility model provides a liquid level detector, wherein a sensor and a power supply are connected to form a first circuit; a first lighting device is connected with the sensor; a second lighting device is connected with the power supply to form a second circuit; the sensor and the second lighting device are arranged at two ends of the liquid level detector; and the power supply is arranged between the sensor and the second lighting device. The liquid level detector has small volume, multifunction, portable property and eliminated space limitation.

Description

Liquid level detection device

Technical field

The utility model relates to a kind of pick-up unit, and is particularly related to a kind of liquid level detection device.

Background technology

At present, at workshop, judge what of solution of a receptacle, great majority directly detect by an unaided eye, if container is transparent, then directly read the height of liquid level according to the scale of container outer wall, sometimes clear for what see, also to shake container and make the liquid surface of the inside shake, if container is opaque, then open container cover and observe the height of liquid level in the container, read the height value of liquid level according to the scale on the container inner wall.

More than obtain the solution scale under two kinds of situations method be not very desirable, at first, for transparent container, check with the naked eye that from the outside there is certain error in the height of liquid level in the container, if under light is not very sufficient situation, do not see Chu more, shake the container effort and do not say, and security does not ensure yet; Secondly, for nontransparent container, the height of Direct observation liquid level, not only error is big, and if solution be poisonous solution, very big to the injury of human body.

At above situation, there are company and individual to invent some liquid checkout equipments, great majority are by sensor sensing liquid, can be from the height of liquid level in the external detection container of plastic containers, yet, such instrument is not only bulky, complex structure, and costs an arm and a leg, and is unsuitable for large-area popularization and use in the workshop.

The utility model content

In order to overcome the inaccurate and pick-up unit inconvenient problem with use of the Level Detection that exists in the prior art, the utility model provides a kind of detection pick-up unit accurate, easy to use that has.

To achieve these goals, the utility model proposes a kind of liquid level detection device, wherein sensor and power supply are connected to first loop, and first light-emitting device links to each other with described sensor; Second light-emitting device and described power supply are connected to second loop.

Optionally, described sensor and described second light-emitting device are positioned at the two ends of described liquid level detection device, and described power supply is between described sensor and described second light-emitting device.

Optionally, described first loop is provided with first switch.

Optionally, described second loop is provided with second switch.

Optionally, described first light-emitting device is a light emitting diode.

Optionally, described second light-emitting device is a bulb.

Optionally, described power supply is a dry cell.

Optionally, described power supply is the dry cell of 2 joint 9v.

Optionally, described sensor is a capacitance type sensor.

Optionally, the operating voltage range of described capacitance type sensor is 18v to 24v.

The beneficial effect of liquid level detection device described in the utility model mainly shows: the big power supply with in the original equipment of 2 joint dry cells replacements makes that whole liquid level detection device volume is small and exquisite, easy to carry; The design of bulb makes and make things convenient for the staff to check by functional diversities of the present utility model under the insufficient situation of light, guaranteed the accuracy of reading.

Description of drawings

Fig. 1 is the example of the utility model liquid level detection device equivalent electrical circuit;

Fig. 2 is the structural representation of the utility model liquid level detection device embodiment;

Fig. 3 is the front view of the utility model liquid level detection device embodiment;

Fig. 4 is the right view of the utility model liquid level detection device embodiment;

Fig. 5 is the vertical view of the utility model liquid level detection device embodiment;

Fig. 6 is the left view of the utility model liquid level detection device embodiment.

Embodiment

Below in conjunction with accompanying drawing utility model is further described.

Please refer to Fig. 1, Fig. 1 is the example of the utility model liquid level detection device equivalent electrical circuit, from the figure as can be seen, sensor 11 and power supply 13 have been formed first loop, and first light-emitting device (Fig. 1 does not show) links to each other with sensor 11, and first loop is by 10 controls of first switch, first light-emitting device is a light emitting diode, power supply 13 is the dry cell of 2 joint 9v, and sensor 11 is a capacitance type sensor, and its operating voltage range is between 18v to 24v.Under the situation of first switch, 10 closures, the first loop conducting, sensor 11 can detect near the bigger material of specific inductive capacity, and meanwhile the light emitting diode that links to each other with sensor 11 is switched on luminous.Second light-emitting device 15 and described power supply 13 are connected to second loop, second light-emitting device 15 is a bulb, under the situation of second switch 20 closures, the second loop conducting, bulb 15 conductings are luminous, and at this moment, liquid level detection device becomes a device of holding concurrently band electric torch function, when detecting liquid level in the container, sensor 11 need read scale value corresponding on the container, around under the bad situation of light, can closed second switch 20 in order to illumination, in the hope of can accurate reading.

Then, please refer to Fig. 2 to Fig. 6, Fig. 2 is the structural representation of the utility model liquid level detection device embodiment, the sensor 11 and second light-emitting device 15 are positioned at the two ends of described liquid level detection device, and described power supply 13 is between described sensor 11 and described second light-emitting device 15, and is identical with Fig. 1, sensor 11 is a capacitance type sensor, operating voltage range is between 18v to 24v, and second light-emitting device, 15 1 bulbs, power supply 13 are the dry cell of 2 joint 9v.Liquid level detection device becomes strip on the whole, the outside is wrapped in by hard shell, the hard shell material is plastics or other specific inductive capacity materials with smaller, because the material that specific inductive capacity is bigger can influence the result of detection, first switch 10 and second switch 20 are positioned on the shell, first light-emitting device 12 that links to each other with sensor 11 also is positioned on the hard shell, described first light-emitting device 12 is a light emitting diode, such design can allow the user not only take to hold sensation light and handy, and is also very convenient during use.Fig. 3 is the front view of the utility model liquid level detection device embodiment, can see first switch 10 and second switch 20 on shell and the shell among the figure, and divides the part of coming out to be used to place sensor 11.Fig. 4 is the right view of the utility model liquid level detection device embodiment, looks from the right of device, can see bulb 15 and second switch 20.Fig. 5 is that the front view of the vertical view of the utility model liquid level detection device embodiment and Fig. 3 is similar, can see first switch 10 and second switch 20 on the shell, and divides the part of coming out to be used to place sensor 11.Fig. 6 is the left view of the utility model liquid level detection device embodiment, looks from the left side of device, can only see first switch 10.

The utility model liquid level detection device can only detect the liquid level in the container made from the specific inductive capacity materials with smaller, plastic containers for example, we place liquid level detection device at one end of sensor 11 near container, can select earlier top near container, closed first switch 10, disconnect second switch 20, liquid level detection device is slowly moved toward the bottom from container top, light emitting diode 12 on device is by secretly brightening, read scale corresponding on container this moment, be the capacity of liquid in container, if light is bad, do not see Chu, liquid level detection device can be turned over, closed second switch 20 reads scale corresponding on the container by means of the light of bulb 15.When selecting liquid level detection device when container bottom slowly moves toward the top, same closed first switch 10 disconnects second switch 20, when container during at liquid, its bottom must have liquid to exist, therefore it is bright just having begun light emitting diode 12, and when treating that device moves to liquid level, light emitting diode is by bright deepening, corresponding scale is the capacity of liquid in container on this moment container, can directly read, also can read, write down scale at last and get final product by the optical illumination of bulb 15.

Though the utility model discloses as above with preferred embodiment, so it is not in order to limit the utility model.Have in the technical field under the utility model and know the knowledgeable usually, in not breaking away from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is as the criterion when looking claims person of defining.

Claims

1. a liquid level detection device is characterized in that sensor and power supply are connected to first loop, and first light-emitting device links to each other with described sensor; Second light-emitting device and described power supply are connected to second loop.

2. according to the described liquid level detection device of claim 1, it is characterized in that described sensor and described second light-emitting device are positioned at the two ends of described liquid level detection device, described power supply is between described sensor and described second light-emitting device.

3. according to the described liquid level detection device of claim 1, it is characterized in that described first loop is provided with first switch.

4. according to the described liquid level detection device of claim 1, it is characterized in that described second loop is provided with second switch.

5. according to the described liquid level detection device of claim 1, it is characterized in that described first light-emitting device is a light emitting diode.

6. according to the described liquid level detection device of claim 1, it is characterized in that described second light-emitting device is a bulb.

7. according to the described liquid level detection device of claim 1, it is characterized in that described power supply is a dry cell.

8. according to the described liquid level detection device of claim 7, it is characterized in that described power supply is the dry cell of 2 joint 9v.

9. according to the described liquid level detection device of claim 1, it is characterized in that described sensor is a capacitance type sensor.

10. according to the described liquid level detection device of claim 9, the operating voltage range that it is characterized in that described capacitance type sensor is 18v to 24v.