CN201653494U - Elastic liquid level sensor - Google Patents
Elastic liquid level sensor Download PDFInfo
- Publication number
- CN201653494U CN201653494U CN2010203014094U CN201020301409U CN201653494U CN 201653494 U CN201653494 U CN 201653494U CN 2010203014094 U CN2010203014094 U CN 2010203014094U CN 201020301409 U CN201020301409 U CN 201020301409U CN 201653494 U CN201653494 U CN 201653494U
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- spring
- electrode
- liquid level
- level sensor
- insulating
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Abstract
The utility model discloses an elastic liquid level sensor which mainly comprises a resistor circuit board, a circuit board protecting sleeve, an electrode plate and a protecting shell, wherein matched resistors with fixed quantity are arranged on the resistor circuit board and are mutually serially connected, and measuring lines are respectively led out from an initial end and a tail end which are formed by the serial connection, the initial end is connected with a common electrode through a common wire, each electrode plate is connected with the corresponding matched resistor through a wire, the electrode plate and the wire can be moulded by cold pressing, the common electrode is arranged below the electrode plate, the electrode plate is fixedly arranged on a corresponding insulation electrode holder, the electrode holders are hollow and distributed at intervals, springs are arranged among the insulation electrode holders and fixedly connected with the insulation electrode holders, the wires are arranged in the insulation electrode holders and the springs in a penetrating way, and the protecting shell is a second spring arranged outside the springs and the insulation electrode holders. The sensor integrally has elasticity so as to play a role of better buffering for realizing effective protection, and has better flexibility during the installation.
Description
Technical field
The utility model relates to a kind of sensor, especially a kind of elasticity liquid level sensor.
Background technology
Present electric pole type liquid level sensor structure: resistance and electrode all are arranged in the Metal Protection shell, and by the junction coating of insulating material (as heat-shrink tube) with resistance and resistance and electrode, only reserving electrode contacts with liquid, to detect liquid level, such structure makes the insulating property that depend on insulating material serviceable life to a great extent of sensor, because insulating property immerse in the liquid for a long time, be easy to cause aging, thereby cause the decreasing insulating between resistance, and as long as the sensor of this type is when insulating material generation minor failure, just can cause to measure and be forbidden, cause scrapping of sensor; On the other hand, the Metal Protection shell does not possess pooling feature owing to be the hardware structure all during use, be damaged easily when being subjected to external force collision, distortion, and reduced dirigibility when installing because of deformation can not take place, and comparatively inconvenience is installed, be unsuitable for the application on the engineering.
Summary of the invention
The purpose of this utility model is to provide a kind of integral body to have the elasticity liquid level sensor of installing on elasticity, the adaptation engineering for the deficiency that solves above-mentioned technology.
In order to achieve the above object; the elasticity liquid level sensor that the utility model is designed; it mainly comprises the resistance circuit plate; the circuit board protective sleeve; electrode slice and protecting sheathing; the resistance circuit plate is provided with the build-out resistor of fixed qty; build-out resistor is connected mutually and the initial end and the end that form after series connection lead to slotted line respectively; initial end links to each other with public electrode by concentric line simultaneously; each electrode slice links to each other by lead with corresponding build-out resistor with it; can be between electrode slice and the lead by cold briquetting; described public electrode is positioned at the electrode slice below; described electrode slice is fixedly installed on the corresponding insulation electrode tip holder; described insulating electrode seat hollow and be spaced apart; be provided with spring therebetween; spring is fixedlyed connected with the insulating electrode seat; described lead is located in insulating electrode seat and the spring, and described protecting sheathing is to be arranged on spring and the second outer spring of insulating electrode seat.Being provided with of spring can make this elasticity liquid level sensor integral body have elasticity, and the insulating electrode seat can be isolated with electrode slice and spring, makes electrode slice not produce false sense and answers.In use, when liquid does not have the contact electrode sheet, resistance value is fixed between two slotted lines, when electrode slice contacts with liquid, between electrode slice and the public electrode by the liquid short circuit, resistance is the resistance of liquid therebetween, thereby makes that resistance value can be carried out level gauging " utmost point is arranged " only for not by the resistance of the resistance of short circuit according to this characteristic between two slotted lines.
Preferred scheme is that this elasticity liquid level sensor also comprises and is positioned at the balancing weight of below, and this balancing weight is connected with second spring, and the while links to each other with the spring or the insulating electrode seat that are positioned at bottom.Balancing weight can guarantee the deadweight that liquid level sensor is required in use, accurately measures.Described balancing weight can be a derby, and described public electrode also can be connected with balancing weight.
In order when installing and using, to prevent the inner ponding of elasticity liquid level sensor, thus take place false sense should, as preferably, described balancing weight is provided with second pod apertures, second pod apertures runs through balancing weight can play good guide functions, prevents ponding.
As preferably, described insulating electrode seat is provided with the pod apertures that at least one runs through, and pod apertures can play good guide functions, prevents ponding.
In order to play good water conservancy diversion effect, described pod apertures opening is taper, and described insulating electrode seat both sides are provided with the hydraucone projection that is connected with spring, and are more firmly more convenient with being connected of spring.
Preferred scheme can also be that this elasticity liquid level sensor also comprises temperature sensor, this temperature sensor is arranged in spring or conductive electrode cover or the insulation sleeve, leads to the thermometric line on it, thereby makes liquid level, temperature integral type, increase result of use, save cost.
As preferably, the circuit board protective sleeve is positioned at the electrode slice top, and this circuit board protective sleeve is connected with second spring, links to each other with the spring or the insulating electrode seat that are positioned at the top simultaneously.
Concentric line is the benchmark of whole measuring system, the quality of its electric conductivity, contact directly has influence on the measuring accuracy of sensor, in order to guarantee the reliability of common ground, described concentric line by main core, twist lead outward and insulating coating is formed, outer strand lead is wrapped in the main core outside, and insulating coating coats it.Wherein main core can be used the anti-corrosion electric conducting electrode material, as stainless steel etc., twists lead outward and can use the copper cash of good conductive effect or aluminum steel etc.
The resulting elasticity liquid level sensor of the utility model, the liquid level build-out resistor is positioned at outside the guard shield, when work, need not resistance is immersed in the liquid, caused the inaccurate problem of sensor measurement because of insulativity descends, make sensor extend greatly serviceable life simultaneously thereby solved in the past; On the other hand, this elasticity liquid level sensor integral body has elasticity, and spring can play good buffer action when being subjected to external force collision, distortion; can effectively protect sensor not to be damaged, when mounted, dirigibility be better; install more conveniently, be suitable for the use on the engineering.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the elementary diagram of embodiment 1;
Fig. 3 is the cut-open view of embodiment 1 insulating electrode seat;
Fig. 4 is the vertical view of embodiment 1 insulating electrode seat;
Fig. 5 is the structural representation of embodiment 2;
Fig. 6 is the structural representation of embodiment 2 concentric lines.
Among the figure: resistance circuit plate 1, circuit board protective sleeve 2, electrode slice 3, protecting sheathing 4, build-out resistor 5, public electrode 6, concentric line 7, insulating electrode seat 8, spring 9, second spring 10, balancing weight 11, second pod apertures 12, pod apertures 13, hydraucone projection 14, temperature sensor 15, main core 16, twist lead 17, insulating coating 18 outward.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment 1
As Fig. 1; shown in 2; the described elasticity liquid level sensor of present embodiment; be used to measure the liquid level of big sun energy water tank; it mainly comprises resistance circuit plate 1; circuit board protective sleeve 2; electrode slice 3 and protecting sheathing 4; resistance circuit plate 1 is provided with the build-out resistor 5 of four 1000K; build-out resistor 5 mutual series connection and the initial end and the end that form after series connection lead to slotted line respectively; initial end links to each other with public electrode 6 by concentric line 7 simultaneously; each electrode slice 3 and corresponding build-out resistor with it 5 link to each other by lead; described public electrode 6 is positioned at electrode slice 3 belows; described electrode slice 3 is fixedly installed on the corresponding insulation electrode tip holder 8; described insulating electrode seat 8 hollows and be spaced apart; be provided with spring 9 therebetween; spring 9 is fixedlyed connected with insulating electrode seat 8; described lead is located in insulating electrode seat 8 and the spring 9, and described protecting sheathing 4 is for being arranged on second spring 10 outside spring 9 and the insulating electrode seat 8.Circuit board protective sleeve 2 is positioned at electrode slice 3 tops, and this circuit board protective sleeve 2 is connected with second spring 10, links to each other with the spring 9 that is positioned at the top simultaneously.The below of elasticity liquid level sensor be a balancing weight 11, and this balancing weight 11 is connected with second spring 10, and simultaneously and the spring 9 that is positioned at bottom, balancing weight 11 can guarantee the deadweight that liquid level sensor is required in use, accurate measurement.Balancing weight 11 is provided with second pod apertures, 12, the second pod apertures 12 to be run through balancing weight 11 and can play good guide functions, prevents ponding.Shown in Fig. 3,4, insulating electrode seat 8 is provided with four pod apertures that run through 13, and pod apertures 13 can play good guide functions, prevents ponding.Pod apertures 13 openings are taper, and insulating electrode seat 8 both sides are provided with the hydraucone projection 14 that is connected with spring, and are more firmly more convenient with being connected of spring.
During use, this resistance electrode formula liquid level sensor is installed in the big sun energy water tank, when four electrode slices 3 are not had by water logging successively, resistance between two slotted lines is respectively 4000K, 3000K, 2000K, 1000K and 0K (water resistance can be ignored) for resistance value, represent 0%, 25%, 50%, 75% and 100% water level respectively, thereby can have the utmost point to measure, the measuring principle of resistance electrode formula liquid level sensor is a known technology, does not add tired stating at this.
The quantity that should be noted that build-out resistor 5, electrode slice 3 and insulating electrode seat 8 in the present embodiment can increase according to actual needs, can effectively improve precision.
Embodiment 2
As Fig. 5, shown in 6, the described elasticity liquid level sensor of present embodiment, this elasticity liquid level sensor also comprises temperature sensor 15 as different from Example 2, this temperature sensor 15 is arranged in the spring 9, leads to the thermometric line on it, thereby makes liquid level, temperature integral type, increase result of use, save cost.In addition, concentric line 7 by main core 16, twist lead 17 outward and insulating coating 18 is formed, twist lead 17 outward and be wrapped in main core 16 outsides, insulating coating 18 is with its coating.Wherein main core 16 is stainless steels, and to guarantee enough intensity, twisting lead 17 outward is copper cash, and weldability is better.
Claims (10)
1. elasticity liquid level sensor; it mainly comprises the resistance circuit plate; the circuit board protective sleeve; electrode slice and protecting sheathing; the resistance circuit plate is provided with the build-out resistor of fixed qty; build-out resistor is connected mutually and the initial end and the end that form after series connection lead to slotted line respectively; initial end links to each other with public electrode by concentric line simultaneously; each electrode slice links to each other by lead with corresponding build-out resistor with it; described public electrode is positioned at the electrode slice below; it is characterized in that described electrode slice is fixedly installed on the corresponding insulation electrode tip holder; described insulating electrode seat hollow and be spaced apart; be provided with spring therebetween; spring is fixedlyed connected with the insulating electrode seat; described lead is located in insulating electrode seat and the spring, and described protecting sheathing is to be arranged on spring and the second outer spring of insulating electrode seat.
2. elasticity liquid level sensor according to claim 1 is characterized in that also comprising being positioned at the balancing weight of below that this balancing weight is connected with second spring, and the while links to each other with the spring or the insulating electrode seat that are positioned at bottom.
3. elasticity liquid level sensor according to claim 2 is characterized in that described balancing weight is provided with second pod apertures.
4. according to claim 1 or 2 or 3 described elasticity liquid level sensors, it is characterized in that described insulating electrode seat is provided with the pod apertures that at least one runs through.
5. elasticity liquid level sensor according to claim 4 is characterized in that described pod apertures opening is taper, and described insulating electrode seat both sides are provided with the hydraucone projection that is connected with spring.
6. according to claim 1 or 2 or 3 described elasticity liquid level sensors, it is characterized in that also comprising temperature sensor, this temperature sensor is arranged in spring or the insulating electrode seat, leads to the thermometric line on it.
7. elasticity liquid level sensor according to claim 5 is characterized in that also comprising temperature sensor, and this temperature sensor is arranged in spring or the insulating electrode seat, leads to the thermometric line on it.
8. elasticity liquid level sensor according to claim 6 is characterized in that the circuit board protective sleeve is positioned at the electrode slice top, and this circuit board protective sleeve is connected with second spring, links to each other with the spring or the insulating electrode seat that are positioned at the top simultaneously.
9. elasticity liquid level sensor according to claim 7 is characterized in that the circuit board protective sleeve is positioned at the electrode slice top, and this circuit board protective sleeve is connected with second spring, links to each other with the spring or the insulating electrode seat that are positioned at the top simultaneously.
10. elasticity liquid level sensor according to claim 9, it is characterized in that described concentric line by main core, twist lead outward and insulating coating is formed, twist lead outward and be wrapped in the main core outside, insulating coating coats it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203014094U CN201653494U (en) | 2010-01-25 | 2010-01-25 | Elastic liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203014094U CN201653494U (en) | 2010-01-25 | 2010-01-25 | Elastic liquid level sensor |
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| Publication Number | Publication Date |
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| CN201653494U true CN201653494U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010203014094U Expired - Fee Related CN201653494U (en) | 2010-01-25 | 2010-01-25 | Elastic liquid level sensor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165575A (en) * | 2014-07-24 | 2014-11-26 | 河海大学 | Resistance type flexibility measuring apparatus |
| CN104483060A (en) * | 2014-11-19 | 2015-04-01 | 上海应用技术学院 | Liquid pressure sensor |
| CN104165575B (en) * | 2014-07-24 | 2017-01-04 | 河海大学 | A kind of resistance-type deflection measuring apparatus |
| CN107747991A (en) * | 2017-11-27 | 2018-03-02 | 浙江星天海洋科学技术有限公司 | Wave absorption liquid level ruler based on hollow rigid body |
| CN109203982A (en) * | 2018-10-09 | 2019-01-15 | 合肥邦立电子股份有限公司 | A kind of liquid level sensor with buffer pallet |
| CN109387259A (en) * | 2018-10-23 | 2019-02-26 | 中国船舶重工集团公司第七〇九研究所 | Water-level probe |
-
2010
- 2010-01-25 CN CN2010203014094U patent/CN201653494U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165575A (en) * | 2014-07-24 | 2014-11-26 | 河海大学 | Resistance type flexibility measuring apparatus |
| CN104165575B (en) * | 2014-07-24 | 2017-01-04 | 河海大学 | A kind of resistance-type deflection measuring apparatus |
| CN104483060A (en) * | 2014-11-19 | 2015-04-01 | 上海应用技术学院 | Liquid pressure sensor |
| CN107747991A (en) * | 2017-11-27 | 2018-03-02 | 浙江星天海洋科学技术有限公司 | Wave absorption liquid level ruler based on hollow rigid body |
| CN109203982A (en) * | 2018-10-09 | 2019-01-15 | 合肥邦立电子股份有限公司 | A kind of liquid level sensor with buffer pallet |
| CN109203982B (en) * | 2018-10-09 | 2023-09-08 | 合肥邦立电子股份有限公司 | Liquid level sensor with buffer tray |
| CN109387259A (en) * | 2018-10-23 | 2019-02-26 | 中国船舶重工集团公司第七〇九研究所 | Water-level probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140125 |