CN214309013U - External-clamping type micro pipeline liquid sensor - Google Patents

Abstract

The utility model discloses an outer miniature pipeline liquid sensor of formula of pressing from both sides, it includes fixed plate, pick-up plate and at least one fixed part, the fixed part is fixed in the upper surface of fixed plate just is used for fixed minute type pipeline of being surveyed, the pick-up plate is fixed in the lower surface of fixed plate, the pick-up plate orientation the one side of fixed part is fixed with response PAD, the pick-up plate is kept away from inductive element has been laid to the one side of fixed part. The response PAD can be with non-contact mode direct detection liquid have or not, need not to put into detection device by survey pipeline, avoid detection device to soak in aqueous for a long time, and then avoid the phenomenon such as yellowing, pastiness that detection device ageing arouses, also can not influence quality of water, avoid causing the pollution to liquid, thereby satisfy and do not destroy the pipeline, do not contact liquid, do not produce the incrustation scale, can not cause the liquid to exist and detect to miniature pipeline or even miniature or super miniature pipeline under the circumstances that impurity blockked up, its simple structure, do not have transparent requirement.

Description

External-clamping type micro pipeline liquid sensor

Technical Field

The utility model relates to a liquid sensor technical field, more specifically say, relate to a miniature pipeline liquid sensor of outer clamp formula.

Background

With the progress of society, our lives are also continuously developing towards automation and intellectualization. In daily life, many household electrical appliances require people to measure the liquid level so as to meet the requirements of people on comfortable life. Appliances with a water tank or other water container typically require a water level to be detected. At present, the water level detection device is commonly used for reed pipe liquid level detection or other liquid level sensors. The following products are generally used as household electrical appliances: the liquid level detection is carried out by a reed switch, a Hall, a metal probe, a photoelectric detection device and the like.

The detection device is basically required to be placed in a water tank container in the various liquid level detection modes, the detection device can generate yellowing, stickiness and other phenomena due to aging after being soaked in water for a long time, dead corner positions are difficult to clean, the water quality is influenced, even the liquid is polluted, whether the liquid exists or not can not be detected under the conditions that pipelines are not damaged, the liquid is not contacted, scales are not generated, and impurity blockage is not caused, and the photoelectric detection device needs to use a prism structure, is complex in structure, is transparent in material requirements, and is high in manufacturing cost. In addition, in many fields, small-diameter pipelines, even micro pipelines and ultra-micro pipelines are required to be used, the diameters of the pipelines are usually below 9mm, the diameters of some pipelines are even between 1.6mm and 3mm, and the micro pipelines cannot be detected by putting a detection device into the pipelines.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a miniature pipeline liquid sensor of formula of outer clamp is provided, response PAD can be with the direct detection liquid of non-contact's mode whether or not, need not to put into detection device and be surveyed the pipeline, avoid detection device to soak in aqueous for a long time, and then avoid the yellowing that detection device ageing arouses, phenomenons such as pastiness, can not influence quality of water yet, avoid causing the pollution to liquid, thereby satisfy and not destroying the pipeline, contactless liquid, do not produce the incrustation scale, can not arouse whether there is liquid to miniature pipeline or super miniature pipeline even under the condition that impurity blockked up, a structure is simple, do not have transparent requirement to the material, can reduce the cost of manufacture by a wide margin.

The utility model discloses the technical problem that will solve realizes through following technical scheme:

in order to solve the technical problem, the external clamping type micro pipeline liquid sensor comprises a fixing plate, a detection plate and at least one fixing part, wherein the fixing part is fixed on the upper surface of the fixing plate and used for fixing a measured micro pipeline, the detection plate is fixed on the lower surface of the fixing plate, one surface, facing the fixing part, of the detection plate is fixedly provided with an induction PAD, and one surface, away from the fixing part, of the detection plate is provided with an induction element.

Furthermore, the number of the fixing parts is at least two, and the fixing parts are used for winding and fixing the micro-pipeline to be measured.

Furthermore, the fixed part has three and perpendicular to the liquid flow direction side by side setting of micro pipeline.

Furthermore, the shape of the fixing part is U-shaped, encircling-type or clamping hook-type.

Furthermore, the fixing part is a plastic buckle.

Further, a shell is fixed on the lower surface of the fixing plate, a semi-closed space is formed between the fixing plate and the shell, and the detection plate, the induction PAD and the induction element are packaged in the semi-closed space.

Further, the detection board is a PCBA, an FPC or a rigid-flex printed circuit board.

Furthermore, a fixing device which can be fixed with the fixing plate is arranged on the induction PAD.

Further, the fixing device is gum or a buckle.

Furthermore, a power supply device, a signal processing device and a wireless communication device are fixed on the detection plate.

The utility model discloses following beneficial effect has:

the induction PAD can directly detect whether liquid exists or not in a non-contact mode, the detection device is not required to be placed into a detected pipeline, the detection device is prevented from being soaked in water for a long time, further, the phenomena of yellowing, stickiness and the like caused by aging of the detection device are avoided, the water quality is not influenced, and the liquid is prevented from being polluted, so that the condition that whether liquid exists in a micro pipeline or even the micro or ultra-micro pipeline or not under the condition that the pipeline is not damaged, the liquid is not contacted, incrustation is not generated, and the blockage of impurities is not caused is met.

Drawings

Fig. 1 is a schematic front structural view of an external clip type micro-pipe liquid sensor according to the present invention.

Fig. 2 is a schematic view of the back structure of fig. 1 after the fixing portion is hidden.

Fig. 3 is a schematic view of another modified structure of the back surface of fig. 1.

Fig. 4 is a schematic front view of fig. 3.

Fig. 5 is a schematic structural view of fig. 4 after the micro duct is hidden.

Fig. 6 is a schematic structural diagram of another embodiment of fig. 4.

Fig. 7 is a schematic structural diagram of another external-clamping micro-pipe liquid sensor according to the present invention.

Fig. 8 is a schematic structural diagram of another external-clamping micro-pipe liquid sensor according to the present invention.

Detailed Description

The present invention will be described in detail with reference to the following examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.

Referring to fig. 1 and 2, for the present invention provides an external-clamping type micro-pipeline 100 liquid sensor, which includes a fixing plate 1, a detection plate 2 and at least one fixing portion 3, wherein the fixing portion 3 is fixed on the upper surface of the fixing plate 1 and used for fixing a micro-pipeline 100 to be measured, the detection plate 2 is fixed on the lower surface of the fixing plate 1, one surface of the detection plate 2 facing the fixing portion 3 is fixed with a sensing PAD, and one surface of the detection plate 2 away from the fixing portion 3 is provided with a sensing element 4. The induction PAD can directly detect whether liquid exists or not in a non-contact mode, the detection device is not required to be placed into a detected pipeline, the detection device is prevented from being soaked in water for a long time, further, the phenomena of yellowing, stickiness and the like caused by aging of the detection device are avoided, the water quality is not influenced, and the liquid is prevented from being polluted, so that the condition that whether liquid exists in the micro pipeline 100 or even the micro or ultra-micro pipeline 100 or not under the condition that the pipeline is not damaged, the liquid is not contacted, incrustation is not generated, and the blockage of impurities is not caused is met, the structure is simple, the material does not have a transparent requirement, and the manufacturing cost can be greatly reduced.

Referring to fig. 1 to 4, further, at least two fixing portions 3 are provided for winding and fixing the micro-pipe 100 to be measured. Because the fixed part 3 has at least two and is used for winding and fixing the miniature pipeline 100 to be measured to make the miniature pipeline 100 to be measured wind and establish on fixed plate 1, thereby increased the liquid volume that circulates on fixed plate 1, the more times of winding, the more the liquid volume that liquid circulates on fixed plate 1 is then big, then be detected by response PAD more easily, it only needs to set up simple structure can satisfy the liquid perception of miniature pipeline 100 and detects.

Referring to fig. 1 to 8, further, the fixing portion 3 has three liquid flow directions perpendicular to the micro-pipe 100 and arranged side by side. It should be noted that, it is only one preferred embodiment of the present disclosure, in other embodiments, 2, 4, 5 or more fixing portions 3 may be used to wind the micro duct 100, the winding manner may be to wind the micro duct back and forth side by side, or may be irregularly wound or wound in an arc shape, and a rail for winding the micro duct 100 may be provided on the upper surface of the fixing plate 1, as long as the amount of liquid flowing on the fixing plate 1 is increased.

Further, the shape of the fixing portion 3 is U-shaped, encircling-shaped or hook-shaped. The cross section of the fixing portion 3 is also U-shaped, the U-shaped fixing portion 3 is easier to clamp and fix the micro-pipe 100, in other embodiments, the surrounding type or the hook type can be selected for use, and they should fall into the protection scope of the present invention.

Further, the fixing portion 3 may adopt various fixing manners such as plastic fasteners, metal snap rings, welding of the ultrasonic housing 5, sealing of rubber rings, screw locking, adhesive tape sticking or magnet attracting, and the like, as long as the fixing of the micro duct 100 is satisfied.

Further, a shell 5 is fixed on the lower surface of the fixing plate 1, a semi-closed space is formed between the fixing plate 1 and the shell 5, and the detection plate 2, the induction PAD and the induction element 4 are packaged in the semi-closed space, so that the induction PAD and the induction element 4 are prevented from being corroded and influenced by the outside, and the service life and the accuracy of the induction PAD and the induction element 4 are improved. In other embodiments, the fixing plate 1 and the housing 5 may form a fully enclosed space.

Further, the detection board 2 is a PCBA, an FPC or a rigid-flex printed circuit board, and when the sensor needs to be installed on the special-shaped curved surface, the detection board 2 can be installed on the special-shaped curved surface in an FPC mode.

Furthermore, a fixing device which can be fixed with the fixing plate 1 is arranged on the induction PAD.

Further, fixing device is gum, buckle, rubber ring, screw or screw, and the gum can be attached easily in different geometric surface, and every position all can be attached firmly, in other embodiments, also can choose for use buckle fixed, rubber ring fixed, screw thread fastening or screw fixation's mode, and it all should fall into the utility model discloses an within the scope of protection.

Further, the sensing element 4 comprises a liquid level detection MCU chip.

Further, a buzzer, an indicator light or a display screen is fixed on the detection plate 2 and can be used for alarming and displaying.

Further, the 1 pin signal of the sensing element 4 is CTRL, which is used for controlling the sensor, so as to meet the requirement of lower power consumption.

Further, the pin 5 signal and the pin 2 signal of the sensing element 4 are VCC and GND respectively, and are used for providing a direct current power supply.

Furthermore, the 3-pin signal of the sensing element 4 is TOUCH, which is used for the main control MCU chip to externally sense whether the liquid level and the water level change, and is equivalent to a sensor probe.

Further, the signal of the sensing element 4 at the pin 4 is OUT, which is the output of the sensor, and the presence or absence of the current liquid level is represented by high and low levels. Meanwhile, the pin is an OD output, and a pull-up resistor is required to be added for level matching.

Further, the signal of the 6 feet of the sensing element 4 is CR, which is used for adjusting the sensing sensitivity of the sensor, thereby facilitating more accurate sensing.

Further, the fixing plate 1 and the shell 5 are made of ABS or PC material with high fireproof and flame-retardant grade; corrosion-resistant materials such as polytetrafluoroethylene can also be adopted according to the requirement; and non-metallic materials such as ceramic die casting and the like can be adopted according to requirements.

Furthermore, the signal output connection mode of the sensing element 4 can be a lead, a pin, a socket, a hardware spring, a metal contact and the like. The output signal can be a switching signal, an analog voltage signal or digital signals such as RS232 and RS 485. And a power supply device, a signal processing and wireless communication device and other peripheral circuits are fixed on the detection plate 2.

The above embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.

Claims (10)

1. The externally-clamped miniature pipeline liquid sensor is characterized by comprising a fixing plate, a detection plate and at least one fixing part, wherein the fixing part is fixed on the upper surface of the fixing plate and used for fixing a measured miniature pipeline, the detection plate is fixed on the lower surface of the fixing plate, one surface, facing the fixing part, of the detection plate is fixedly provided with an induction PAD, and one surface, away from the fixing part, of the detection plate is provided with an induction element.

2. The clip-on micro-duct liquid sensor according to claim 1, wherein the at least two fixing portions are used for winding and fixing the micro-duct to be measured.

3. The clip-on micro-tube liquid sensor according to claim 2, wherein the fixing portions are three and arranged side by side perpendicular to the liquid flow direction of the micro-tube.

4. The externally-clamped micro-pipeline liquid sensor according to claim 1, wherein the fixing portion is U-shaped, encircling-shaped or hook-shaped.

5. The clip-on micro duct liquid sensor according to claim 1, wherein the fixing portion is a plastic clip.

6. The externally-clamped micro pipeline liquid sensor according to claim 1, wherein a housing is fixed to a lower surface of the fixing plate, the fixing plate and the housing form a semi-enclosed space, and the detection plate, the sensing PAD and the sensing element are enclosed in the semi-enclosed space.

7. The externally-clamped micro-pipeline liquid sensor as claimed in claim 1, wherein the sensing board is a PCBA, FPC or rigid-flex PCB.

8. The externally-clamped micro pipeline liquid sensor as claimed in claim 1, wherein the sensing PAD is provided with a fixing device capable of being fixed with the fixing plate.

9. The externally-clamped micro-duct liquid sensor according to claim 8, wherein the fixing means is an adhesive backing or a snap.

10. The externally-clamped micro-pipeline liquid sensor as claimed in claim 1, wherein a power supply device, a signal processing device and a wireless communication device are fixed on the detection plate.

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