CN211553002U - Liquid level float detecting rod sensor - Google Patents
Liquid level float detecting rod sensor Download PDFInfo
- Publication number
- CN211553002U CN211553002U CN202020200982.XU CN202020200982U CN211553002U CN 211553002 U CN211553002 U CN 211553002U CN 202020200982 U CN202020200982 U CN 202020200982U CN 211553002 U CN211553002 U CN 211553002U
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- liquid level
- sleeve pipe
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- capillary sleeve
- sensor
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Abstract
The utility model discloses a take temperature liquid level float gauge rod sensor, including head, capillary sleeve pipe, PCB circuit board and flotation pontoon, the capillary sleeve pipe can be dismantled with the head and be connected, the PCB circuit board is fixed to be set up and extends along with capillary sheathed tube length direction in the capillary sleeve pipe, the flotation pontoon slides and cup joints on the capillary sleeve pipe, capillary sheathed tube lower extreme is provided with the end cap that prevents infiltration and flotation pontoon and drop. PCB circuit board printing has sensor circuit, and the head is including waterproof gasket, level sensor owner shell, the waterproof pad of flange and the mounting flange that sets gradually, a plurality of corresponds the position and all is provided with the screw on level sensor owner shell, the waterproof pad of flange and the mounting flange, and the screw passes waterproof gasket, level sensor owner shell, the waterproof pad of flange and mounting flange in proper order and makes it become a whole. The device can measure liquid level height and liquid temperature value simultaneously, and the integrated level is high.
Description
Technical Field
The utility model relates to a sensor technical field, it is specific, relate to a liquid level float gauge rod sensor.
Background
The liquid level sensor is widely applied to the fields of motor homes, ships, yachts, automobiles, generator sets, chemical industries and the like, is widely applied to liquid level measurement in fuel oil, water, automobiles and chemical agent liquid tanks, and has the defects of low precision, untight appearance sealing port, large measured water level numerical error and easy corrosion and durability of products.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the poor and not high problem of measurement accuracy of current level sensor environment adaptability, provided a liquid level float gauge stick sensor, the device long service life has good anti-vibration and corrosion resisting property etc. adopts the electromagnetic induction principle, and output signal stability is high, and the continuity is good, and only the flotation pontoon is movable part, and is stand wear and tear, long service life, and the outward appearance material uses stainless steel 304 or 316, prevents embroidering the anticorrosion.
For realizing above-mentioned technical purpose, the utility model provides a pair of technical scheme is, a liquid level float gauge stick sensor, including head, capillary sleeve pipe, PCB circuit board and flotation pontoon, the capillary sleeve pipe can be dismantled with the head and be connected, the PCB circuit board is fixed to be set up and extends along with capillary sheathed tube length direction in the capillary sleeve pipe, the flotation pontoon slides and cup joints on the capillary sleeve pipe, capillary sheathed tube lower extreme is provided with the end cap that prevents infiltration and flotation pontoon and drop.
Preferably, the head is including waterproof gasket, level sensor owner shell, the waterproof pad of flange and the mounting flange that sets gradually, a plurality of corresponds the position and all is provided with the screw on level sensor owner shell, the waterproof pad of flange and the mounting flange, and the screw passes waterproof gasket, level sensor owner shell, the waterproof pad of flange and mounting flange in proper order and makes it become a whole.
Preferably, the upper end of the PCB extends to a wiring terminal on the upper portion of the main shell of the liquid level sensor, a waterproof plug is arranged at the wire outlet end, the wiring terminal is sealed by black glue, one end of the signal wire is electrically connected with the PCB, and the other end of the signal wire is electrically connected with the display device.
Preferably, the display device is one of a meter and a nixie tube for displaying the liquid level value.
Preferably, the capillary sleeve is made of stainless steel material.
Preferably, the buoy is integrally formed by magnetic materials and foam materials.
Preferably, the PCB is printed with a liquid level detection circuit, the liquid level detection circuit comprises a plurality of reed switches and a plurality of divider resistors with equal resistance values, two electric pins of each reed switch are connected in parallel and are connected with one electric pin of one divider resistor to form a detection unit, and the plurality of detection units are arranged along the PCB to form the liquid level detection circuit.
The utility model has the advantages that: the utility model relates to a liquid level float gauge stick sensor long service life has good anti-vibration and corrosion resisting property etc. adopts the electromagnetic induction principle, and output signal stability is high, and the continuity is good, and only the flotation pontoon is movable part, and is stand wear and tear, long service life, and the outward appearance material uses stainless steel 304 or 316, prevents embroidering the anticorrosion.
Drawings
Fig. 1 is a structural diagram of a liquid level float detecting rod sensor according to the present invention.
Fig. 2 is an exploded view of the liquid level float detecting rod sensor of the present invention.
Fig. 3 is a schematic diagram of a liquid level detection circuit of the liquid level float detecting rod sensor of the present invention.
The notation in the figure is: 1-head, 2-capillary sleeve, 3-float bowl, 4-PCB circuit board, 11-liquid level sensor main shell, 12-flange waterproof pad, 13-fixed flange, 14-waterproof gasket, 15-screw, 16-waterproof plug and 17-plug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is described in detail with reference to the accompanying drawings and examples, it should be understood that the specific embodiment described herein is only a preferred embodiment of the present invention, and is only used for explaining the present invention, and does not limit the protection scope of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
Example (b): as shown in fig. 1, a liquid level float gauge rod sensor comprises head 1, capillary sleeve 2, PCB circuit board 4 and flotation pontoon 3, and capillary sleeve 2 can be dismantled with head 1 and be connected, and PCB is fixed to be set up and extends along with capillary sleeve 2's length direction in capillary sleeve 2, and 3 slip of flotation pontoon are cup jointed on capillary sleeve 2, capillary sleeve 2's lower extreme is provided with the end cap 17 that prevents infiltration and flotation pontoon 3 and drop, and capillary sleeve 2 is made for stainless steel material, flotation pontoon 3 by magnetic material and foam material integrated into one piece.
As shown in fig. 2, the head 1 is composed of a waterproof gasket 14, a main shell 11 of the liquid level sensor, a waterproof gasket 12 of a flange and a fixing flange 13 which are arranged in sequence, screw holes are arranged at corresponding positions of the main shell 11 of the liquid level sensor, the waterproof gasket 12 of the flange and the fixing flange 13, and screws 15 sequentially penetrate through the waterproof gasket 14, the main shell 11 of the liquid level sensor, the waterproof gasket 12 of the flange and the fixing flange 13 to enable the waterproof gasket, the main shell 11 of the liquid level sensor, the waterproof gasket 12 of the flange.
Preferably, the upper end of the PCB 4 extends to the terminal on the upper portion of the main shell 11 of the liquid level sensor, the outlet end is provided with a waterproof plug 16, the outlet of the terminal is sealed by black glue, one end of the signal line is electrically connected with the PCB 4, the other end of the signal line is electrically connected with a display device, and the display device is an instrument or a digital tube for displaying a liquid level value.
The PCB circuit board 4 is printed with a liquid level detection circuit, the liquid level detection circuit comprises a plurality of reed switches and a plurality of divider resistors with equal resistance values, each of the two electric pins of each reed switch are connected in parallel and are connected with one electric pin of each divider resistor to form a detection unit, and the plurality of detection units are arranged along the PCB circuit board 4 to form the liquid level detection circuit. Along with the change of the liquid level, the float bowl 3 slides up and down along the capillary sleeve 2, meanwhile, the magnet of the float bowl 3 drives the reed switch at different positions in the electronic tube in an induction mode, so that the resistance signal of an internal circuit is changed immediately, then a change is fed back to the instrument through a lead to be displayed, and finally, the correct liquid level value is displayed through the swing position of an instrument pointer or a nixie tube.
A specific circuit schematic diagram of the liquid level detection circuit is shown in fig. 3, wherein a total of 7 detection units are sequentially connected to form the liquid level detection circuit, a main signal wire of the liquid level detection circuit is connected with a terminal through a fusible link, a divider resistor is a chip resistor, when the total resistance value of the chip resistor in the circuit is fixed and unchanged, the chip resistor is divided into equal resistance values according to the length resistance of a capillary sleeve 2 of the sensor, 190 ohms is divided into 7 equal resistance values, the resistance value of each equal resistance value is 27.4 ohms, the equal resistance values of the resistors are evenly distributed in the capillary sleeve 2 of the sensor, one side pin of a reed pipe is connected with each node of the resistors, the other pins of the reed pipes are connected together and output corresponding resistance signals, when a magnetic float is at different heights, the corresponding reed pipe is induced to be closed and output corresponding voltage signals, when the magnetic float is at the lowest position, the resistance signal of response output is 0 ohm and corresponds the liquid level 0%, the magnetism float is when the intermediate position, the resistance signal of response output is 95 ohm, correspond liquid level 50%, the magnetism float is when the highest position, the resistance signal of response output is 190 ohm and corresponds liquid level 100%, the resistance value between every tongue tube is all the same big, it all is the same to ensure to measure the precision that gets between every tongue tube, the test is accurate, level sensor's length can be customized by customer's demand, customization scope 10 ~ 100cm, satisfy most liquid level detection's demand.
The above-mentioned embodiment does the present invention relates to a preferred embodiment of a liquid level float detecting rod sensor, which is not limited thereto, the present invention discloses a specific implementation range, the present invention includes but is not limited to this specific embodiment, all the equivalent changes made according to the shape and structure of the present invention are within the protection scope of the present invention.
Claims (7)
1. A liquid level float feeler lever sensor characterized in that:
including head, capillary sleeve pipe, PCB circuit board and flotation pontoon, the capillary sleeve pipe can be dismantled with the head and be connected, the fixed length direction that sets up along with the capillary sleeve pipe in the capillary sleeve pipe of PCB circuit board extends, the flotation pontoon slides and cup joints and is in on the capillary sleeve pipe, the lower extreme of capillary sleeve pipe is provided with the end cap that prevents infiltration and flotation pontoon and drop.
2. The liquid level float feeler lever sensor of claim 1, wherein:
the head is including waterproof gasket, the waterproof pad of level sensor owner shell, flange and the mounting flange that sets gradually, a plurality of corresponds the position and all is provided with the screw on level sensor owner shell, the waterproof pad of flange and the mounting flange, and the screw passes waterproof gasket, the waterproof pad of level sensor owner shell, flange and mounting flange in proper order and makes it become a whole.
3. The liquid level float feeler lever sensor of claim 2, wherein:
the upper end of the PCB extends to a wiring end on the upper portion of the main shell of the liquid level sensor, the wiring end is provided with a waterproof plug, a port of the wiring end is sealed by black glue, one end of a signal wire is electrically connected with the PCB, and the other end of the signal wire is electrically connected with the display device.
4. A liquid level float feeler lever sensor according to claim 3, characterized in that:
the display device is one of an instrument or a nixie tube for displaying the liquid level numerical value.
5. The liquid level float feeler lever sensor of claim 1, wherein:
the capillary sleeve is made of stainless steel materials.
6. The liquid level float feeler lever sensor of claim 1, wherein:
the buoy is integrally formed by magnetic materials and foam materials.
7. A liquid level float feeler lever sensor according to claim 1 or 3, characterized in that:
the PCB is printed with a liquid level detection circuit, the liquid level detection circuit comprises a plurality of reed pipes and a plurality of divider resistors with equal resistance values, two electric pins of each reed pipe are connected in parallel and are connected with one electric pin of each divider resistor to form a detection unit, and the plurality of detection units are arranged along the PCB to form the liquid level detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020200982.XU CN211553002U (en) | 2020-02-24 | 2020-02-24 | Liquid level float detecting rod sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020200982.XU CN211553002U (en) | 2020-02-24 | 2020-02-24 | Liquid level float detecting rod sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211553002U true CN211553002U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020200982.XU Active CN211553002U (en) | 2020-02-24 | 2020-02-24 | Liquid level float detecting rod sensor |
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| Country | Link |
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| CN (1) | CN211553002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504399A (en) * | 2020-11-20 | 2021-03-16 | 北奔重型汽车集团有限公司 | Liquid level transmitter for vehicle fuel oil theft prevention |
| CN112649070A (en) * | 2021-01-08 | 2021-04-13 | 常州市鼎兴电子有限公司 | Swing rod type Hall oil level sensor |
-
2020
- 2020-02-24 CN CN202020200982.XU patent/CN211553002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112504399A (en) * | 2020-11-20 | 2021-03-16 | 北奔重型汽车集团有限公司 | Liquid level transmitter for vehicle fuel oil theft prevention |
| CN112649070A (en) * | 2021-01-08 | 2021-04-13 | 常州市鼎兴电子有限公司 | Swing rod type Hall oil level sensor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 323000 101, building 18, District 6, wanyang zhongchuangcheng, Bihu Town, Liandu District, Lishui City, Zhejiang Province Patentee after: Zhejiang Tianya peer technology Co.,Ltd. Address before: 323000 room 213, No.131, middle nanshanyuan Road, Bihu Town, Liandu District, Lishui City, Zhejiang Province Patentee before: Zhejiang Tianya peer technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |