CN104456041A - Fuel cutting-off protective device with mercury switch - Google Patents
Fuel cutting-off protective device with mercury switch Download PDFInfo
- Publication number
- CN104456041A CN104456041A CN201410630491.8A CN201410630491A CN104456041A CN 104456041 A CN104456041 A CN 104456041A CN 201410630491 A CN201410630491 A CN 201410630491A CN 104456041 A CN104456041 A CN 104456041A
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- China
- Prior art keywords
- connecting rod
- oil
- mercury switch
- mercury
- protective device
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Abstract
The invention relates to a fuel cutting-off protective device with a mercury switch. The fuel cutting-off protective device comprises an oil cup and a connecting rod, wherein the oil cup and the connecting rod are connected into a whole, the bottom of the oil cup is provided with an oil outlet hole, the whole device is kept balanced through a pivot arranged on the connecting rod, an oil feeding groove is formed above the oil cup, the connecting rod is provided with the mercury switch connected with a power source, the mercury switch and the power source form a circuit through a wire by means of a sealed mercury groove, and an indication lamp and a microprocessor are connected into the circuit. The fuel cutting-off protective device is ingenious in design, adopted materials are simple, automatic protection and automatic alarming during oil cutting off are achieved, and the safety accidents caused when a device lacks oil are greatly reduced.
Description
Technical field
The present invention relates to oil circuit detection field in machinery lubrication system, be specifically related to a kind of oil cut-off protection device.
Background technique
The oil cutting-off protection of current lubricating utensil adopts float-type liquid level controller usually, carries out oil cutting-off protection by the liquid level signal detecting fuel tank end.But in actual applications, often occur the situations such as lubricating pipe breakage, leakage of oil, traditional oil cut-off protection device cannot detect, and does not have the effect of oil cutting-off protection.And by position limitation, trickle comprehensive detection cannot be carried out.
Summary of the invention
In view of above-mentioned deficiency of the prior art, the invention provides a kind of characteristic utilizing mercury node, by own wt and the flow velocity of lubricant oil, make mercury node be switched on or switched off circuit, reach protection object.
The present invention is by the following technical solutions: a kind of oil cut-off protection device with mercury switch, comprises the lubricating cup and connecting rod that are connected, be provided with oil outlet bottom described lubricating cup, keeps whole machine balancing, have and add oil groove above lubricating cup by the fulcrum be located on connecting rod; Described connecting rod is equipped with the mercury switch be connected with power supply, and described mercury switch forms loop by the mercury cell sealed by wire and power supply, is connected with tutorial light and microprocessor in described loop.Such structure makes connecting rod have level and inclination two states, and when the oil mass increased in lubricating cup and leakage of oil amount are consistent, connecting rod two ends keep level, mercury switch not conducting, and circuit disconnects; When leakage of oil amount is greater than volume read-out and occurs low on fuel in lubricating cup, connecting rod sinks away from lubricating cup one end, sinks to a certain degree, mercury switch conducting, and circuit loop is energized, and tutorial light lights, and lubrication system quits work automatically.
Further, described fulcrum can be the overhung construction be fixed on above connecting rod, also can be the supporting structure be fixed on below connecting rod.
Further, the mercury capacity in described mercury cell is 1/4 ~ 1/3 of cell body volume.When ensureing that connecting rod is in balance, mercury can not be communicated with two wires.
The present invention designs ingenious, draws materials simple, achieves oil-break and automatically protect and report to the police, the generation of the security incident that the equipment that greatly reduces causes because of oil starvation.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention oil cut-off protection device structural representation;
Fig. 2 is electrical schematic diagram of the present invention;
Fig. 3 is the on off operating mode figure of mercury switch in Fig. 1;
Description of reference numerals:
1-lubricating cup, 11-oil outlet, 2-connecting rod, 3-overhung construction, 4-add oil groove, 5-lubricated thing, R-mercury switch, L-tutorial light, J-control contact, R1, R2-wire.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figure 1, the present invention includes lubricating cup 1, the connecting rod 2 be connected with lubricating cup, for keeping the overhung construction 3 of connecting rod 2 and lubricating cup 1 whole machine balancing.Be provided with mercury switch R in connecting rod 2, it is a seal groove that mercury is housed, wire R1 and R2 that groove be arranged in parallel in the horizontal direction built with mercury and two, as shown in Figure 3.
Mercury switch R connects direct current 24V power supply by circuit one end, the other end connection control contact J, and control contact J is connected to the PLC that tutorial light L runs with the whole lubrication system of control simultaneously, and circuit connects as shown in Figure 2.
When lubrication system is normally run, by adding, the oil mass that oil groove 4 enters into lubricating cup 1 is suitable with the oil mass of dripping from oil outlet 11, and mercury switch R keeps level, and two wires R1, R2 are not communicated with; When occurring that the oil mass in lubricating cup 1 reduces, connecting rod 2 sinks away from one end of lubricating cup 1, mercury switch R tilts thereupon, when angle of inclination a is more than 20 °, wire R1, R2 are communicated with by mercury, loop conducting in Fig. 2, tutorial light L lights, and PLC controls lubrication system after receiving oil-break signal and quits work.
Embodiment 2
Change overhung construction 3 into supporting structure, be located at below connecting rod 2, act on same overhung construction 3 identical, for keeping the balance of connecting rod 2 and lubricating cup 1 entirety.Other parts and working principle are all the same manner as in Example 1, repeat no more.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned mode of execution, also comprises the technological scheme be made up of above technical characteristics combination in any.
Claims (3)
1. with an oil cut-off protection device for mercury switch, it is characterized in that: comprise the lubricating cup and connecting rod that are connected, bottom described lubricating cup, be provided with oil outlet, keep whole machine balancing by the fulcrum be located on connecting rod, have above lubricating cup and add oil groove; Described connecting rod is equipped with the mercury switch be connected with power supply, and described mercury switch forms loop by the mercury cell sealed by wire and power supply, is connected with tutorial light and microprocessor in described loop.
2. the oil cut-off protection device with mercury switch according to claim 1, is characterized in that: described fulcrum is the overhung construction be fixed on above connecting rod or the supporting structure be fixed on below connecting rod.
3. the oil cut-off protection device with mercury switch according to claim 1 and 2, is characterized in that: the mercury capacity in described mercury cell is 1/4 ~ 1/3 of cell body volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630491.8A CN104456041A (en) | 2014-11-11 | 2014-11-11 | Fuel cutting-off protective device with mercury switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410630491.8A CN104456041A (en) | 2014-11-11 | 2014-11-11 | Fuel cutting-off protective device with mercury switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104456041A true CN104456041A (en) | 2015-03-25 |
Family
ID=52902546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410630491.8A Pending CN104456041A (en) | 2014-11-11 | 2014-11-11 | Fuel cutting-off protective device with mercury switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104456041A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191028950A (en) * | 1910-12-13 | 1911-11-23 | Anastasius Sadowski | Improved Alarm Device for Lubricators. |
| GB685992A (en) * | 1948-08-14 | 1953-01-14 | David Bridge & Company Ltd | Improvements in or relating to lubricating systems for machinery |
| CN2742401Y (en) * | 2004-10-26 | 2005-11-23 | 宝钢集团上海第一钢铁有限公司 | Fluid level detection control switch |
| CN202195851U (en) * | 2011-09-06 | 2012-04-18 | 巩义市供电公司 | Low-oil-level alarming device |
| CN203677653U (en) * | 2013-08-09 | 2014-07-02 | 永磐科技股份有限公司 | Drip weight monitoring device and weight sensing module thereof |
-
2014
- 2014-11-11 CN CN201410630491.8A patent/CN104456041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191028950A (en) * | 1910-12-13 | 1911-11-23 | Anastasius Sadowski | Improved Alarm Device for Lubricators. |
| GB685992A (en) * | 1948-08-14 | 1953-01-14 | David Bridge & Company Ltd | Improvements in or relating to lubricating systems for machinery |
| CN2742401Y (en) * | 2004-10-26 | 2005-11-23 | 宝钢集团上海第一钢铁有限公司 | Fluid level detection control switch |
| CN202195851U (en) * | 2011-09-06 | 2012-04-18 | 巩义市供电公司 | Low-oil-level alarming device |
| CN203677653U (en) * | 2013-08-09 | 2014-07-02 | 永磐科技股份有限公司 | Drip weight monitoring device and weight sensing module thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |