CN201893289U - Float type level switch - Google Patents
Float type level switch Download PDFInfo
- Publication number
- CN201893289U CN201893289U CN2010206672315U CN201020667231U CN201893289U CN 201893289 U CN201893289 U CN 201893289U CN 2010206672315 U CN2010206672315 U CN 2010206672315U CN 201020667231 U CN201020667231 U CN 201020667231U CN 201893289 U CN201893289 U CN 201893289U
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- lever
- iron core
- float
- switch
- mounting bracket
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Abstract
The utility model discloses a float type level switch, which comprises a level tank, wherein a float ball is arranged in the level tank; a connecting rod is vertically and fixedly arranged above the float ball; an iron core is arranged at the upper end of the connecting rod; a mounting bracket is arranged above the iron core; a lever is arranged on the mounting bracket in a hinged manner; and a magnet corresponding to the iron core is arranged at one end of the lever. The float type level switch is characterized in that a metal plate is fixedly arranged at the other end of the lever; and an inductive proximity switch connected to a level monitoring control circuit is arranged on the mounting bracket corresponding to the metal plate. The float type level switch has the advantages of long service life and high sensitivity of control; and meanwhile, the float type level switch is especially suitable for being applied to the overhaul process of the traditional float type level switch when a microswitch is failed. The cost for integrally replacing the float type level switch is reduced and the aim of reducing the maintenance cost is achieved.
Description
Technical field
The utility model relates to the float-ball type liquid-level switch that uses in a kind of urea fertilizer production control system.
Background technology
In the urea fertilizer production process, generally need through steam, gas making, desulfurization, compression, conversion, decarburization, formant workshop section such as synthetic.Wherein all need to adopt liquid-level switch so that the liquid level of liquids such as liquefied ammonia and ammoniacal liquor is detected so that control in a plurality of unit.
The float-ball type liquid-level switch of in the urea fertilizer production control system, using always, its structure is, comprise level tank, be provided with ball float in the level tank, the ball float top vertically is set with a connecting rod, small end is provided with an iron core, the iron core top is provided with mounting bracket, hingedly on the mounting bracket be provided with a lever, one end of lever is provided with the magnet corresponding with described iron core, lever other end correspondence is provided with the sensitive switch that is fixed on the mounting bracket, and sensitive switch is connected in the level monitoring control circuit.During its work, after the liquid level in the level tank exceeds standard, ball float floats with liquid level, drive by connecting rod and to move on the iron core and near the magnet of lever one end, make magnet be attracted and drive lever and rotate by iron core, and then make lever other end touching sensitive switch make its action, and then with the liquid level feedback information in the level monitoring control circuit.In this float-ball type liquid-level switch, the main member of described sensitive switch comprises the metal spring sheet that can be struck, one end of metal spring sheet is fixed on the contact, the metal spring sheet other end can move between several contacts under the stirring of lever one end, and then realizes the control of circuit.Because the metal spring sheet in this sensitive switch need be stirred the purpose that just can reach control by lever, so sensitive switch can not be realized sealing fully, add its work under bad environment, so the metal spring sheet is exposed in the air, yielding after the oxidation, the corrosion of making moist for a long time, and then influenced the sensitivity of switch.
The utility model content
At above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is, a kind of longer service life is provided, and controls sensitiveer float-ball type liquid-level switch.
In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:
A kind of float-ball type liquid-level switch, comprise level tank, be provided with ball float in the level tank, the ball float top vertically is set with a connecting rod, small end is provided with an iron core, the iron core top is provided with mounting bracket, hingedly on the mounting bracket be provided with a lever, one end of lever is provided with the magnet corresponding with described iron core, its characteristics are that the lever other end is set with a metallic plate, and also corresponding described metallic plate is provided with the inductance approach switch that is connected in the level monitoring control circuit on the described mounting bracket, when described iron core attracts magnet to drive lever to rotate, described metallic plate can near and trigger described inductance approach switch.
When this float-ball type liquid-level switch uses, after the liquid level in the level tank exceeds standard, ball float floats with liquid level, drive by connecting rod and to move on the iron core and near the magnet of lever one end, make magnet be attracted and drive lever and rotate by iron core, and then make the metallic plate of the lever other end be right after inductance approach switch to make its action, and then with the liquid level feedback information in the level monitoring control circuit.In this float-ball type liquid-level switch, described inductance approach switch is ripe existing product, and its principle makes interior of articles produce eddy current for utilizing conductive body in the time generating an electromagnetic field near switch near this.This eddy current reacts near switch, and switch internal circuit parameter is changed, identify thus to have or not conductive body to shift near, and then the on-off of control switch.Inductance approach switch highly sensitive, enclosed construction during switch simultaneously, air can not enter switch inside electric member is caused corrosion and destruction.It is longer that event has the life-span, the advantage that usage operation is sensitiveer.
As further optimization, also comprise a back-moving spring that is connected between mounting bracket and the lever, described back-moving spring attracts magnet opposite to the rotating torque and the direction of lever to the rotating torque of lever less than iron core.In float-ball type liquid-level switch structure originally, it is to drive the lever revolution by magnet gravity that lever resets, but this reset mode, and sensitivity is not high.After having increased back-moving spring, can improve the switch sensitivity that resets.
In sum, than the float-ball type liquid-level switch of existing structure, the utility model has adopted near switch and has substituted sensitive switch, and has set up back-moving spring, makes it have long service life, controls sensitiveer advantage.Simultaneously the utility model is particularly suitable in existing float-ball type liquid-level switch being used for maintenance process and implementing after sensitive switch is malfunctioning.Reduce the cost that whole float-ball type liquid-level switch integral replacing need be spent, reached the purpose that reduces maintenance cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments structure of the present utility model is described in further detail.
During concrete enforcement, as shown in Figure 1, a kind of float-ball type liquid-level switch, comprise level tank 1, be provided with ball float 2 in the level tank 1, ball float 2 tops vertically are set with a connecting rod 3, connecting rod 3 upper ends are provided with an iron core 4, iron core 4 tops are provided with mounting bracket 5, hingedly on the mounting bracket 5 be provided with a lever 6, one end of lever 6 is provided with the magnet 7 corresponding with described iron core 4, lever 6 other ends are set with a metallic plate 8, also corresponding described metallic plate 8 is provided with the inductance approach switch 9 that is connected in the level monitoring control circuit on the described mounting bracket 5, when described iron core 4 attracts magnet to drive levers 6 to rotate, described metallic plate 8 can near and trigger described inductance approach switch 9.Also comprise a back-moving spring 10 that is connected between mounting bracket 5 and the lever 6, the rotating torque of 10 pairs of levers 6 of described back-moving spring attracts the rotating torque and the direction of 7 pairs of levers 6 of magnet opposite less than iron core 4.
During concrete enforcement, the position of described magnet 7 and iron core 4 can mutual alternative, perhaps is changed to two magnet that attract each other, and these variations should be considered as the obvious equivalent variations of the technical program and still fall into the utility model protection range.
Claims (2)
1. float-ball type liquid-level switch, comprise level tank, be provided with ball float in the level tank, the ball float top vertically is set with a connecting rod, small end is provided with an iron core, the iron core top is provided with mounting bracket, hingedly on the mounting bracket be provided with a lever, one end of lever is provided with the magnet corresponding with described iron core, it is characterized in that the lever other end is set with a metallic plate, also corresponding described metallic plate is provided with the inductance approach switch that is connected in the level monitoring control circuit on the described mounting bracket, when described iron core attracts magnet to drive lever to rotate, described metallic plate can near and trigger described inductance approach switch.
2. float-ball type liquid-level switch as claimed in claim 1, it is characterized in that, also comprise a back-moving spring that is connected between mounting bracket and the lever, described back-moving spring attracts magnet opposite to the rotating torque and the direction of lever to the rotating torque of lever less than iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206672315U CN201893289U (en) | 2010-12-20 | 2010-12-20 | Float type level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206672315U CN201893289U (en) | 2010-12-20 | 2010-12-20 | Float type level switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201893289U true CN201893289U (en) | 2011-07-06 |
Family
ID=44222759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206672315U Expired - Fee Related CN201893289U (en) | 2010-12-20 | 2010-12-20 | Float type level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201893289U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723232A (en) * | 2012-06-20 | 2012-10-10 | 重庆耐德能源装备集成有限公司 | Liquid level switch |
| CN104637727A (en) * | 2015-02-18 | 2015-05-20 | 柯远珍 | Position sensing switch |
| US9182266B2 (en) * | 2012-08-30 | 2015-11-10 | Fisher Controls International Llc | Liquid level detectors |
| CN109350128A (en) * | 2018-10-18 | 2019-02-19 | 殷荣蓬 | A kind of urine specimen collector |
| CN112959810A (en) * | 2021-01-26 | 2021-06-15 | 张家港精工包装彩印有限公司 | Printing equipment for packaging bag production and printing method thereof |
-
2010
- 2010-12-20 CN CN2010206672315U patent/CN201893289U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723232A (en) * | 2012-06-20 | 2012-10-10 | 重庆耐德能源装备集成有限公司 | Liquid level switch |
| CN102723232B (en) * | 2012-06-20 | 2015-04-01 | 重庆耐德能源装备集成有限公司 | Liquid level switch |
| US9182266B2 (en) * | 2012-08-30 | 2015-11-10 | Fisher Controls International Llc | Liquid level detectors |
| EP2891021A4 (en) * | 2012-08-30 | 2016-05-18 | Emerson Machinery Equipment Shenzhen Co Ltd | Liquid level detectors |
| RU2643687C2 (en) * | 2012-08-30 | 2018-02-05 | Эмерсон Машинери Эквипмент (Шэньчжэнь) Ко., Лтд | Liquid level sensor (versions) |
| CN104637727A (en) * | 2015-02-18 | 2015-05-20 | 柯远珍 | Position sensing switch |
| CN109350128A (en) * | 2018-10-18 | 2019-02-19 | 殷荣蓬 | A kind of urine specimen collector |
| CN109350128B (en) * | 2018-10-18 | 2021-08-27 | 鹤壁市人民医院 | Urine sample collector |
| CN112959810A (en) * | 2021-01-26 | 2021-06-15 | 张家港精工包装彩印有限公司 | Printing equipment for packaging bag production and printing method thereof |
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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: 20110706 Termination date: 20131220 |