CN215448108U - Liquid level sensor convenient to survey - Google Patents
Liquid level sensor convenient to survey Download PDFInfo
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- CN215448108U CN215448108U CN202121354264.9U CN202121354264U CN215448108U CN 215448108 U CN215448108 U CN 215448108U CN 202121354264 U CN202121354264 U CN 202121354264U CN 215448108 U CN215448108 U CN 215448108U
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- level sensor
- circuit board
- pipe body
- liquid level
- display screen
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Abstract
The utility model discloses a liquid level sensor convenient for observation in the technical field of liquid level sensors, which comprises a pipe body, wherein a magnetic floating ball is arranged outside the pipe body in a sliding manner, a circuit board matched with the pipe body is encapsulated in the pipe body, the circuit board is provided with a plurality of magnetic switches and resistors which can sense the position of the magnetic floating ball and are uniformly distributed at intervals, the circuit board is connected to a processor through a wire, the processor is connected with a display screen, and the lower end of the pipe body is fixedly and hermetically connected with a pipe body mounting seat, and the liquid level sensor is characterized in that: the display screen is fixedly connected to the outer end of the pipe body mounting seat, the outer end of the display screen is fixedly connected with a shell of the waterproof connector, a warning device is arranged on the shell of the waterproof connector, one end, inserted into the container, of the pipe body mounting seat is provided with an electrode plate of the capacitor, and the electrode plate of the capacitor is connected to the processor through a wire. The control precision of the sensor is improved, the observation of operators is facilitated, and the liquid level danger signal can be obtained as soon as possible.
Description
Technical Field
The utility model relates to the technical field of liquid level sensors, in particular to a liquid level sensor convenient to observe.
Background
The liquid level sensor is widely applied to the fields of automobiles, industry, civil use and the like, and is used for monitoring the change condition of the liquid level. The mainstream liquid level sensors in the market are basically floating ball type sensors, the sensing units mainly comprise reed switches and Hall switches as magnetic switches, and the working principle is basically the same. The principle of the reed switch liquid level sensor is realized by connecting the reed switches in parallel in the middle of resistors connected in series, when an external magnetic floating ball floats up and down, the reed switches at different positions are driven to be closed or disconnected, the resistors at the large-resistance part are short-circuited, the output resistors are correspondingly changed, and the corresponding positions of the liquid levels are judged by detecting the change of the resistance values.
The existing large-scale liquid level sensor, such as the liquid level sensor of a large-scale container of some chemical plants, can have the inconvenience of observation or untimely observation or when the detection circuit and the detection chip are in trouble when using, can cause the observation of liquid level danger point untimely, in addition because the floater itself has certain volume, therefore the highest or lowest liquid level reading is not very accurate, cause operating personnel to delay the time of liquid feeding time or outage operation, in addition operating personnel is to the container liquid level inspection, need the reading of sensor under the interval time just to go to the inspection, otherwise just probably cause the incident, influence the in-service use effect like this.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems proposed in the background art, the utility model provides the following technical scheme:
the utility model provides a level sensor convenient to survey, includes the body, the external slip of body is provided with the magnetism floater, the circuit board of looks adaptation is equipped with to the encapsulation in the body, the circuit board is provided with the magnetic switch and the resistance that a plurality of that can respond to the position of magnetism floater was arranged at even interval, the circuit board passes through the wire and connects on the treater, be connected with the display screen on the treater, the lower extreme fixed seal of body is connected with body mount pad, its characterized in that: the display screen is fixedly connected to the outer end of the tube body mounting seat, the outer end of the display screen is fixedly connected with a shell of the waterproof connector, a warning device is arranged on the shell of the waterproof connector, one end, inserted into the container, of the tube body mounting seat is provided with an electrode plate of a capacitor, the electrode plate of the capacitor is connected to the processor through a wire, and the processor processes a capacitance signal changing between the electrode plates of the capacitor and then changes the capacitance signal into a control signal of the warning device.
As a further scheme of the utility model: the waterproof connector is provided with an annular warning lamp holder, an annular LED lamp strip is arranged in the warning lamp holder, a plurality of groups of three-color lamps are arranged on the LED lamp strip, and the three-color lamps are fed back to a voltage signal interval of the processor through the circuit board to realize on-off.
As a still further scheme of the utility model: the warning lamp holder is made of transparent materials, and the LED lamp strip is bonded on the warning lamp holder through a silica gel adhesive.
As a still further scheme of the utility model: and a snap ring for preventing the magnetic floating ball from dropping off is arranged at the upper part of the pipe body.
As a still further scheme of the utility model: the warning device is a buzzer.
As a still further scheme of the utility model: the buzzer is a flash buzzer.
As a still further scheme of the utility model: the warning device is a red lamp in the LED lamp strip.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the utility model, when the capacitor passes through the electrode plates of the capacitor, the capacitance between the electrode plates of the capacitor changes, the changed signal is fed back to the processor in a voltage mode, the processor processes the signal and sends the processed signal to the warning device, and the warning device gives an alarm, for example, a three-color lamp gives a red light to surround and a buzzer gives an alarm. So that the operator can obtain an accurate alarm signal.
2. In the utility model, the position of the magnetic floating ball on the tube body is sensed through the on-off of the magnetic switch on the circuit board, the resistances of the circuit boards at different positions are different, the electric signals fed back to the processor are also different, and the processor processes the different electric signals to obtain corresponding different control signals according to the different electric signals to control the three-color lamp on the LED lamp strip to emit different illumination colors. So that the operator can master the liquid level condition in the container in real time.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the buzzer in the present invention.
In the figure: 1. a pipe body; 2. a magnetic floating ball; 3. a circuit board; 4. a magnetic switch; 5. a resistance; 6. a processor; 7. a snap ring; 8. a display screen; 9. a pipe body mounting base; 10. a waterproof connector; 11. a warning device; 11-1, a buzzer; 12. an electrode plate of the capacitor; 13. a warning lamp holder; 14. an LED strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a liquid level sensor convenient for observation includes a tube 1, a magnetic floating ball 2 is slidably disposed outside the tube 1, a circuit board 3 adapted to the tube 1 is sealed inside the tube 1, the circuit board 3 is provided with a plurality of magnetic switches 4 and resistors 5 which are uniformly spaced and arranged and can sense the position of the magnetic floating ball 2, the circuit board 3 is connected to a processor 6 through a wire, the processor 6 is connected to a display screen 8, and a tube mounting seat 9 is fixedly and hermetically connected to a lower end of the tube 1, which is characterized in that: the display screen 8 is fixedly connected to the outer end of the tube body mounting seat 9, the outer end of the display screen 8 is fixedly connected with a shell of a waterproof connector 10, a warning device 11 is arranged on the shell of the waterproof connector 10, one end, inserted into the container, of the tube body mounting seat 9 is provided with an electrode plate 12 of a capacitor, the electrode plate 12 of the capacitor is connected to the processor 6 through a wire, and the processor 6 processes a capacitance signal changing between the electrode plates 12 of the capacitor and then changes the capacitance signal into a control signal of the warning device 11.
Wherein, be provided with annular warning lamp stand 13 on the waterproof connector 10, be provided with annular LED lamp area 14 in the warning lamp stand 13, be provided with the multiunit tricolor lamp on the LED lamp area 14, the tricolor lamp is fed back to the voltage signal interval realization break-make of treater 6 through circuit board 3. The warning lamp holder 13 is made of transparent materials, and the LED lamp strip 14 is bonded on the warning lamp holder 13 through a silica gel adhesive. The upper part of the pipe body 1 is provided with a snap ring 7 for preventing the magnetic floating ball 2 from dropping off. The warning device 11 is a buzzer 11-1. The warning device 11 is a red light in the LED strip 14.
When the sensor works specifically, when an operator loads the sensor into a container from the upper part of the container, when the liquid level in the container rises to the uppermost end of the container, or the sensor is inserted into the container from the bottom of the container, at the moment, the volume of the magnetic floating ball 2 enables the floating ball to abut against the container wall and not rise/fall any more, at the moment, when the liquid level continues to rise/fall, when the liquid level passes through the electrode plates 14 of the capacitor, the size of the capacitor between the electrode plates 12 of the capacitor changes, the changed signal is fed back to the processor 6 in a voltage mode, the processor 6 processes the signal and sends the processed signal to the warning device 11, the warning device 11 gives an alarm, if the three-color lamp gives out red light to surround, and the buzzer 11-1 gives a buzzing alarm. The buzzer 11-1 may be a flashing buzzer. So that the operator can obtain an accurate alarm signal.
In a further embodiment, the positions of the magnetic floating balls 2 on the tube body 1 are sensed by on-off of the magnetic switches 4 on the circuit board 3, the resistors 5 of the circuit boards 3 at different positions are different, the electric signals fed back to the processor 6 are also different, the processor 6 processes the different electric signals to obtain corresponding different control signals according to the different electric signals to control the tricolor lamps on the LED lamp strips 14 to emit different illumination colors, for example, the LED lamp strips 14 emit green light in a reasonable liquid level interval, the LED lamp strips 14 emit yellow light in an interval slightly needing to be filled with liquid, the LED lamp strips 14 emit red light in a dangerous area, the multicolor LED lamp strips 14 can be further divided according to the reasonable liquid level interval, the control technology of the multicolor LED lamp strips 14 is mature, the light emitting effect is very good, thus the liquid level change condition of an operator can be reminded in real time, and the operator can not observe the liquid level in the container by contrasting the display screen 8 in real time, the operation personnel can observe and judge conveniently, and the safety performance of the operation precision when the operation is performed is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a level sensor convenient to survey, includes body (1), body (1) outer slip is provided with magnetism floater (2), the circuit board (3) of looks adaptation is equipped with in body (1), circuit board (3) are provided with magnetic switch (4) and resistance (5) that a plurality of that can respond to the position of magnetism floater (2) evenly arranged at interval, circuit board (3) are connected on treater (6) through the wire, be connected with display screen (8) on treater (6), the lower extreme fixed sealing of body (1) is connected with body mount pad (9), its characterized in that: display screen (8) fixed connection is in the outer end of body mount pad (9), the outer end fixedly connected with of display screen (8) waterproof connector (10) the casing, be provided with warning device (11) on the casing of waterproof connector (10), the one end that body mount pad (9) inserted in the container is provided with electrode slice (12) of electric capacity, electrode slice (12) of electric capacity are connected to treater (6) through the wire, become the control signal of warning device (11) after treater (6) handle the electric capacity signal of change between electrode slice (12) of electric capacity.
2. A visual facilitating level sensor as claimed in claim 1, wherein: the waterproof connector (10) is provided with an annular warning lamp holder (13), the warning lamp holder (13) is internally provided with an annular LED lamp strip (14), the LED lamp strip (14) is provided with a plurality of groups of three-color lamps, and the three-color lamps are fed back to a voltage signal interval of the processor (6) through the circuit board (3) to realize on-off.
3. A visual facilitating level sensor as claimed in claim 2, wherein: the warning lamp holder (13) is made of transparent materials, and the LED lamp strip (14) is bonded on the warning lamp holder (13) through a silica gel adhesive.
4. A visual facilitating level sensor as claimed in claim 1, wherein: the upper part of the pipe body (1) is provided with a snap ring (7) for preventing the magnetic floating ball (2) from dropping off.
5. A visual facilitating level sensor as claimed in claim 1, wherein: the warning device (11) is a buzzer (11-1).
6. A visual ease of view level sensor as claimed in claim 5 wherein: the buzzer (11-1) is a flashing buzzer.
7. A visual facilitating level sensor as claimed in claim 2, wherein: the warning device (11) is a red lamp in the LED lamp strip (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121354264.9U CN215448108U (en) | 2021-06-17 | 2021-06-17 | Liquid level sensor convenient to survey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121354264.9U CN215448108U (en) | 2021-06-17 | 2021-06-17 | Liquid level sensor convenient to survey |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215448108U true CN215448108U (en) | 2022-01-07 |
Family
ID=79711843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121354264.9U Active CN215448108U (en) | 2021-06-17 | 2021-06-17 | Liquid level sensor convenient to survey |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215448108U (en) |
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2021
- 2021-06-17 CN CN202121354264.9U patent/CN215448108U/en active Active
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