CN202217620U - Liquid level switch used for nonmagnetic box body - Google Patents
Liquid level switch used for nonmagnetic box body Download PDFInfo
- Publication number
- CN202217620U CN202217620U CN2011203252881U CN201120325288U CN202217620U CN 202217620 U CN202217620 U CN 202217620U CN 2011203252881 U CN2011203252881 U CN 2011203252881U CN 201120325288 U CN201120325288 U CN 201120325288U CN 202217620 U CN202217620 U CN 202217620U
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- CN
- China
- Prior art keywords
- liquid
- level switch
- ball float
- mount pad
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a liquid level switch used for a nonmagnetic box body, comprising a floating ball and a mounting seat; wherein the mounting seat is fixed on the box body; the mounting seat is connected with the floating ball through a connecting cable therebetween; the floating ball consists of a nonmetal closed housing and a permanent magnet arranged in the housing; and the mounting seat consists of a nonmagnetic housing, a magnetic inductor and a time relay. The liquid level switch of the utility model is provided with the time relay, thus an alarm signal can be output to external equipment only after a liquid level signal lasts for a set time, therefore, even the water level in a waste water box fluctuates along with moving of a vehicle, a false alarm can not be caused, thereby raising control precision.
Description
Technical field
The utility model relates to a kind of liquid-level switch, and particularly a kind of liquid-level switch that is used for non magnetic casing belongs to the liquid-level switch technical field.
Background technology
The liquid-level switch that generally uses at present is used for high liquid level and low liquid level warning effect in the casing, and general induction and the magnetic floating ball device of adopting is with the controller of magnetic ball float as liquid-level switch.Common structure is in airtight non-magnetic pipe, one or more tongue tubes to be installed; Then this pipe is passed one or more hollows and the inner ball float that annular magnet is arranged; The rising of liquid or following general who has surrendered drive ball float and move up and down together; Thereby make the tongue tube in this non-magnetic pipe produce the action of adhesive or disconnection, thereby export a switching signal.
On present rail vehicles such as EMU; Sewage on the car all is the mode that adopts centralized collection and concentrate discharging, under car, can be provided with a dirty water collecting tank, and dirty water collecting tank is to be processed by nonmagnetic substance; Liquid level in the dirty water collecting tank is strict control; When reaching designated water level, dirty water collecting tank will be closed, and the water level of dirty water collecting tank promptly relies on liquid-level switch to control.Because rail vehicle is in the process of high-speed cruising always; Water level in the foul water tank can fluctuate along with the operation of vehicle; Adopt the liquid-level switch that generally uses at present; The magnetic ball float can drive frequent the cut-offfing of inductive switch along with the fluctuation of liquid level, not only can cause false alarm, also can influence the useful life of liquid-level switch.
Summary of the invention
The utility model main purpose is to address the above problem and is not enough, provides a kind of simple in structure, can avoid false alarm, improves the liquid-level switch that is used for non magnetic casing of control precision.
For realizing above-mentioned purpose, the technical scheme of the utility model is:
A kind of liquid-level switch that is used for non magnetic casing; Comprise ball float and mount pad; Said mount pad is fixed on the casing; Connect through connecting strand between said mount pad and the ball float, said ball float is made up of the housing of nonmetal sealing and the permanent magnet that is arranged in the said housing, and said mount pad is made up of non-magnetic shell, Magnetic Induction device and the time relay.
Further, said connecting strand is the stainless steel rope.
Further, sticking with glue knot between said connecting strand and the said ball float is connected.
Further, the shell of said mount pad adopts brass.
Further, the housing of said ball float is plastics.
Further, in said mount pad, be provided with the sealing ring that is used for circuit and liquid isolation.
Further, the said Magnetic Induction device and the time relay are arranged on the top in the said non-magnetic shell.
Content to sum up; The described a kind of liquid-level switch that is used for non magnetic casing of the utility model utilizes the magnetic triggered time relay switch that produces between interior permanent magnet of ball float and the Magnetic Induction device in the mount pad, thus the output liquid level signal; Because the time relay has the function of time-delay output; Having only after liquid level signal continues setting-up time just can be to the external device output alarm signal, so when the water level in the foul water tank fluctuates along with the operation of vehicle, can not cause false alarm.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model fundamental diagram.
As depicted in figs. 1 and 2, ball float 1, mount pad 2, connecting strand 3, casing 4, Magnetic Induction device 5, the time relay 6, housing 7, permanent magnet 8, sealing ring 9, securing member 10, shell 11, sleeve 12.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As shown in Figure 1, a kind of liquid-level switch that is used for non magnetic casing can use on the foul water tank of rail vehicles such as EMU, with the liquid level in the control foul water tank.Water level operated by rotary motion in the foul water tank has 80% to control with 100% two kind of liquid level, at 80% and 100% place of designated water level a liquid-level switch is set respectively.When the water level in the foul water tank reached 80%, the liquid-level switch was here outwards exported signal to report to the police; When the water level in the foul water tank reached 100%, the liquid-level switch was here outwards exported signal alarm, controlled foul water tank simultaneously and closed.
This liquid-level switch comprises ball float 1, mount pad 2 and connecting strand 3, relies on connecting strand 3 to connect between mount pad 2 and the ball float 1, and mount pad 2 is fixed on the casing 4, and ball float 1 swims on the water surface in the foul water tank.
Connecting strand 3 adopts the stainless steel rope, and connecting strand 3 is connected with corrosion resistant glue bond with the top of the plastic casing 7 of ball float 1.
As shown in Figure 2, ball float 1 swims on the water surface, goes up and down along with the up-down of water level; When the water level in the foul water tank reaches designated water level; Magnetic Induction device 5 in the permanent magnet 8 adhesive mount pads 2 in the ball float 1, thus triggered time relay 6 is outwards exported liquid level signal.Because the time relay 6 has the function of time-delay output, have only after liquid level signal continues setting-up time and just can report to the police, so when the water level in the foul water tank fluctuates along with the operation of vehicle, avoid causing false alarm to extraneous apparatus output signal.
As stated, in conjunction with the given scheme content of accompanying drawing, can derive the similar techniques scheme.In every case be the content that does not break away from the utility model technical scheme, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of the utility model technical scheme according to the technical spirit of the utility model.
Claims (7)
1. liquid-level switch that is used for non magnetic casing; It is characterized in that: comprise ball float and mount pad; Said mount pad is fixed on the casing; Connect through connecting strand between said mount pad and the ball float, said ball float is made up of the housing of nonmetal sealing and the permanent magnet that is arranged in the said housing, and said mount pad is made up of non-magnetic shell, Magnetic Induction device and the time relay.
2. the liquid-level switch that is used for non magnetic casing according to claim 1 is characterized in that: said connecting strand is the stainless steel rope.
3. the liquid-level switch that is used for non magnetic casing according to claim 1 is characterized in that: stick with glue knot between said connecting strand and the said ball float and be connected.
4. the liquid-level switch that is used for non magnetic casing according to claim 1 is characterized in that: the shell of said mount pad adopts brass.
5. the liquid-level switch that is used for non magnetic casing according to claim 1 is characterized in that: the housing of said ball float is plastics.
6. the liquid-level switch that is used for non magnetic casing according to claim 1 is characterized in that: in said mount pad, be provided with the sealing ring that is used for circuit and liquid isolation.
7. according to each described liquid-level switch that is used for non magnetic casing of claim 1 to 6, it is characterized in that: the said Magnetic Induction device and the time relay are arranged on the top in the said non-magnetic shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203252881U CN202217620U (en) | 2011-09-01 | 2011-09-01 | Liquid level switch used for nonmagnetic box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203252881U CN202217620U (en) | 2011-09-01 | 2011-09-01 | Liquid level switch used for nonmagnetic box body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202217620U true CN202217620U (en) | 2012-05-09 |
Family
ID=46016861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203252881U Expired - Lifetime CN202217620U (en) | 2011-09-01 | 2011-09-01 | Liquid level switch used for nonmagnetic box body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202217620U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225882A (en) * | 2016-08-18 | 2016-12-14 | 四川泛华航空仪表电器有限公司 | Condenser type time delay oil level signal device |
| CN107830910A (en) * | 2017-11-21 | 2018-03-23 | 司捷易兰姆布斯控制科技（苏州）有限公司 | A kind of liquid level control switch for nonmagnetic box body |
| CN108325255A (en) * | 2018-03-15 | 2018-07-27 | 深圳职业技术学院 | Automatic filtering unit |
| CN114046860A (en) * | 2021-11-11 | 2022-02-15 | 四川泛华航空仪表电器有限公司 | Method for solving false alarm of float-type oil level sensor |
-
2011
- 2011-09-01 CN CN2011203252881U patent/CN202217620U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225882A (en) * | 2016-08-18 | 2016-12-14 | 四川泛华航空仪表电器有限公司 | Condenser type time delay oil level signal device |
| CN107830910A (en) * | 2017-11-21 | 2018-03-23 | 司捷易兰姆布斯控制科技（苏州）有限公司 | A kind of liquid level control switch for nonmagnetic box body |
| CN108325255A (en) * | 2018-03-15 | 2018-07-27 | 深圳职业技术学院 | Automatic filtering unit |
| CN114046860A (en) * | 2021-11-11 | 2022-02-15 | 四川泛华航空仪表电器有限公司 | Method for solving false alarm of float-type oil level sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QINGDAO TONGDA RAILWAY EQUIPMENT CO., LTD. Effective date: 20140430 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140430 Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. Patentee after: Qingdao Tongda Railway Equipment Co., Ltd. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Patentee after: Qingdao Tongda Railway Equipment Co., Ltd. Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. Patentee before: Qingdao Tongda Railway Equipment Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |