CN203432652U - Thick-film resistance liquid level sensor - Google Patents
Thick-film resistance liquid level sensor Download PDFInfo
- Publication number
- CN203432652U CN203432652U CN201320429131.2U CN201320429131U CN203432652U CN 203432652 U CN203432652 U CN 203432652U CN 201320429131 U CN201320429131 U CN 201320429131U CN 203432652 U CN203432652 U CN 203432652U
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- Prior art keywords
- thick
- liquid level
- film resistor
- lever
- level sensor
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Abstract
The utility model relates to a thick-film resistance liquid level sensor which comprises a float, a lever, a fixing plate, a sliding piece, a thick-film resistor, a support, a sealing seat, a sealing gasket, a wiring terminal block, a wire and two fixing rings. The float floats on the liquid face of engine oil, the floating height of the float changes along with changing of the liquid face of the engine oil, and therefore the angle, relative to the support, of the lever changes. The sliding piece rotates under the action of the lever, the contact position of the sliding piece and the thick-film resistor changes, the resistance value in a circuit changes, therefore, the output voltage at the position of the wiring terminal block is changed, and through the change of the output voltage, liquid level measurement is realized. The thick-film resistance liquid level sensor has the advantages of being high in sensitivity, durable, good in sealing performance and the like and can realize the function of measuring the liquid level of the engine oil.
Description
Technical field
The utility model relates to a kind of thick-film resistor liquid level sensor.
Background technology
In vehicle traveling process, engine is being brought into play irreplaceable effect.But, if machine oil lacks, easily causing the damage of engine, serious meeting causes personal safety problem., there is the defects such as low, the fragile and sealing of sensitivity is poor in some detecting elements that use at present, therefore, and a kind of highly sensitive, durable and good airproof performance of demand and can realize the detecting element of measuring machine oil liquid level, i.e. a kind of thick-film resistor liquid level sensor.
Summary of the invention
In order to solve the above problems, the utility model provides a kind of thick-film resistor liquid level sensor.
The technical scheme in the invention for solving the above technical problem is:
A liquid level sensor, comprises float, lever, fixed head, slide plate, thick-film resistor, support, sealing socket, packing washer, terminals sub-block, wire and two retainer plates, and described float and lever right-hand member are connected through the hinge; Described slide plate edge and lever left end are connected, and slide plate middle part is connected through the hinge with fixed head; Thick-film resistor is fixed on fixed head, and contacts with slide plate, and thick-film resistor right-hand member is provided with connection terminal; Described support bottom and fixed head upper end are connected; Sealing socket and support upper end are connected; Packing washer upper surface and sealing socket lower surface are connected, and described O-ring seal upper surface and sealing socket lower surface are connected by bonding mode; Terminals sub-block is arranged on sealing socket top; Wire lower end is connected with the connection terminal of thick-film resistor right-hand member, and wire upper end is connected with terminals sub-block; Two retainer plates lay respectively at support upper and lower, for fixing cord; Buoys float is on machine oil liquid level, change along with machine oil liquid level, the Floating Height of float is changed, and then make the Angulation changes of the relative support of lever, slide plate rotates under the effect of lever, and the contact position of slide plate and thick-film resistor changes, and changes the resistance value in loop, and then the output voltage at change terminals sub-block place, by the variation of output voltage, realize the measurement of liquid level.
The beneficial effects of the utility model are: a kind of thick-film resistor liquid level sensor, there is the advantages such as highly sensitive, durable and good airproof performance, and can realize the function of measuring machine oil liquid level.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is front view of the present utility model;
Fig. 2 is left view of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As depicted in figs. 1 and 2, a kind of thick-film resistor liquid level sensor described in the utility model, comprise float 1, lever 2, fixed head 3, slide plate 4, thick-film resistor 5, support 6, sealing socket 7, packing washer 8, terminals sub-block 9, wire 10 and two retainer plates 11, described float 1 is connected through the hinge with lever 2 right-hand members; Described slide plate 4 edges and lever 2 left ends are connected, and slide plate 4 middle parts and fixed head 3 are connected through the hinge; Thick-film resistor 5 is fixed on fixed head 3, and contacts with slide plate 4, and thick-film resistor 5 right-hand members are provided with connection terminal; Described support 6 bottoms and fixed head 3 upper ends are connected; Sealing socket 7 is connected with support 6 upper ends; Packing washer 8 upper surfaces and sealing socket 7 lower surfaces are connected, and O-ring seal 8 upper surfaces and sealing socket 7 lower surfaces are connected by bonding mode; Terminals sub-block 9 is arranged on sealing socket 7 tops; Wire 10 lower ends are connected with the connection terminal of thick-film resistor 5 right-hand members, and wire 10 upper ends are connected with terminals sub-block 9; Two retainer plates 11 lay respectively at support 6 upper and lowers, for fixing cord 10.
During work, float 1 swims on machine oil liquid level, change along with machine oil liquid level, the Floating Height of float 1 is changed, and then make the Angulation changes of lever 2 relative supports 6, slide plate 4 rotates under the effect of lever 2, slide plate 4 changes with the contact position of thick-film resistor 5, change the resistance value in loop, and then change the output voltage at terminals sub-block 9 places, by the variation of output voltage, realize the measurement of liquid level.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a thick-film resistor liquid level sensor, comprise float, lever, fixed head, slide plate, thick-film resistor, support, sealing socket, packing washer, terminals sub-block, wire and two retainer plates, it is characterized in that: described float and lever right-hand member are connected through the hinge; Described slide plate edge and lever left end are connected, and slide plate middle part is connected through the hinge with fixed head; Thick-film resistor is fixed on fixed head, and contacts with slide plate, and thick-film resistor right-hand member is provided with connection terminal; Described support bottom and fixed head upper end are connected; Sealing socket and support upper end are connected; Packing washer upper surface and sealing socket lower surface are connected; Terminals sub-block is arranged on sealing socket top; Wire lower end is connected with the connection terminal of thick-film resistor right-hand member, and wire upper end is connected with terminals sub-block; Two retainer plates lay respectively at support upper and lower.
2. a kind of thick-film resistor liquid level sensor according to claim 1, is characterized in that: described O-ring seal upper surface and sealing socket lower surface are connected by bonding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320429131.2U CN203432652U (en) | 2013-07-18 | 2013-07-18 | Thick-film resistance liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320429131.2U CN203432652U (en) | 2013-07-18 | 2013-07-18 | Thick-film resistance liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203432652U true CN203432652U (en) | 2014-02-12 |
Family
ID=50061685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320429131.2U Expired - Fee Related CN203432652U (en) | 2013-07-18 | 2013-07-18 | Thick-film resistance liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203432652U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833302A (en) * | 2014-11-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle minimum ground clearance measuring device |
| CN110146142A (en) * | 2019-05-22 | 2019-08-20 | 江阴市华恒仪表有限公司 | A kind of fuel tank level sensor |
-
2013
- 2013-07-18 CN CN201320429131.2U patent/CN203432652U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833302A (en) * | 2014-11-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle minimum ground clearance measuring device |
| CN104833302B (en) * | 2014-11-12 | 2017-12-08 | 北汽福田汽车股份有限公司 | Vehicle minimum ground clearance measurement apparatus |
| CN110146142A (en) * | 2019-05-22 | 2019-08-20 | 江阴市华恒仪表有限公司 | A kind of fuel tank level sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20160718 |