CN105236045A - Liquid level switch and liquid level control device - Google Patents
Liquid level switch and liquid level control device Download PDFInfo
- Publication number
- CN105236045A CN105236045A CN201510794615.0A CN201510794615A CN105236045A CN 105236045 A CN105236045 A CN 105236045A CN 201510794615 A CN201510794615 A CN 201510794615A CN 105236045 A CN105236045 A CN 105236045A
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- liquid level
- push rod
- movable part
- spacing hole
- level switch
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Abstract
The invention discloses a liquid level switch and a liquid level control device. The liquid level switch comprises a stationary part (1) and a movable part, wherein the stationary part (1) is provided with a travel switch (11); one of the stationary part (1) and the movable part is provided with a hollow push rod cavity; the other one of the stationary part (1) and the movable part is provided with a push rod (21) capable of moving relative to the push rod cavity in a predetermined range of the push rod cavity; the movable part comprises a floating body (22) capable of floating on the liquid; the movement of the movable part is capable of actuating the travel switch (11). According to the technical scheme, the push rod (21) of the floating body liquid level switch is capable of moving in the predetermined range along the push rod cavity, so that the movement range of the movable part is limited, thereby avoiding shake or swing caused by excessively large movement range of the movable part; the problem that signals shake can be effectively overcome.
Description
Technical field
The present invention relates to a kind of fluid level controller, particularly, relate to a kind of liquid level switch, the invention still further relates to a kind of fluid level control device.
Background technology
A lot of place is had to need carry out liquid level supervision by fluid level controller and automatically control in industrial process, such as wastewater disposal basin, cesspool, pulp water pond and stormwater tank etc.When the liquid level in pond reaches the liquid level of regulation, need to process in time.Such as, level monitor can be used to monitor electrolyte level, remind when liquid level reaches the liquid level of regulation monitor staff to operate, to control liquid level; Certainly, also can by pump and level monitor with the use of, realize liquid automatic control, liquid level to be maintained in certain scope.
Fluid level controller can be divided into contact-free level controller and contact fluid level controller.At present conventional contact level monitor is usually easy causes the inaccurate or signal jitter of signal measurement because of temperature drift.Such as RF Liquid Level Instrument, magnetic floating ball lever meter and sink to cable formula liquidometer etc.
Therefore, need to provide a kind of liquid level switch to measure inaccurate or signal dithering problem to overcome.
Summary of the invention
The object of this invention is to provide a kind of liquid level switch, to overcome signal dithering problem.
The present invention also aims to provide a kind of fluid level control device.
To achieve these goals, the invention provides a kind of described liquid level switch and comprise stationary part and movable part, described stationary part is provided with travel switch, one in described stationary part and described movable part has the push rod chamber of hollow, another one have can along described push rod chamber in preset range relative to the push rod moved in described push rod chamber, described movable part comprises the buoyancy aid that can swim on liquid level, and the motion of described movable part can actuate described travel switch.
Preferably, described stationary part and described movable part are respectively arranged with position limiting structure spacing each other.
Preferably, described stationary part comprises the tube-like piece with described push rod chamber, and described movable part comprises described push rod, and the other end of described push rod stretches out described tube-like piece, and described buoyancy aid is positioned at this end of described push rod.
Preferably, described push rod also comprises the lance for coordinating to actuate described travel switch with the connecting lever be arranged on described travel switch be arranged on described push rod.
Preferably, described push rod chamber is provided with spacing hole, described push rod is provided with and can stretches out from described spacing hole and by the spacing limiting section of the lower edges of described spacing hole.
Preferably, described limiting section is described lance.
Preferably, described travel switch is fixed on edge under the upper edge of described spacing hole.
Preferably, described travel switch is fixed on edge in described spacing hole lower edge.
The present invention also provides a kind of fluid level control device, and this fluid level control device comprises liquid level switch provided by the invention.
Preferably, described push rod chamber is provided with spacing hole, described push rod is provided with and can stretches out from described spacing hole and by the spacing limiting section of the lower edges of described spacing hole, described liquid level switch comprises the first liquid level switch and/or the second liquid level switch, the described travel switch of described first liquid level switch is fixed on edge under the upper edge of described spacing hole, and the described travel switch of the second liquid level switch is fixed on edge in described spacing hole lower edge.
By technique scheme, by the push rod of liquid level switch being set to move in preset range along push rod chamber, limiting the range of movement of movable part, thus effectively overcoming signal dithering problem.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of the liquid level switch that a kind of detailed description of the invention of the present invention provides;
Fig. 2 is the structural representation of the liquid level switch that the another kind of detailed description of the invention of the present invention provides.
Description of reference numerals
1 stationary part 11 travel switch 12 spacing hole
13 groove 21 push rod 22 buoyancy aids
Edge under 23 lance 24 projection a upper edge
Edge in b lower edge
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the sequencer of use if " first, second " is only for describing the present invention, and can not be used to indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.
The invention provides a kind of liquid level switch, as shown in Figure 1, described liquid level switch comprises stationary part 1 and movable part, described stationary part 1 is provided with travel switch 11, one in described stationary part 1 and described movable part has the push rod chamber of hollow, another one have can along described push rod chamber in preset range relative to the push rod 21 moved in described push rod chamber, described movable part comprises the buoyancy aid 22 that can swim on liquid level, and the motion of described movable part can actuate described travel switch 11.
Technique scheme, by the push rod 21 of liquid level switch is set to move in preset range along push rod chamber, limit the range of movement of movable part, thus prevent the excessive shake that causes of movable part action radius or swing, effectively overcome signal dithering problem.
Travel switch 11 is arranged in stationary part 1, and when movable part has push rod chamber, stationary part has corresponding push rod 21, and push rod chamber can be set to coordinate with travel switch 11, can actuate the trip switch 11; When movable part has push rod 21, stationary part has corresponding push rod chamber, and in this situation, push rod 21 can be set to coordinate with travel switch 11, can actuate the trip switch 11.Buoyancy aid 22 is fixedly installed on movable part, and welding or bonding connection mode can be adopted to fix, and this buoyancy aid 22 also can be adopted to be integrally formed with movable part.
A kind of preferred detailed description of the invention, described stationary part 1 and described movable part are respectively arranged with position limiting structure spacing each other.This position limiting structure can have various structures form, and as shown in Figure 2, described position limiting structure comprises the groove 13 in the one that is arranged in described push rod 21 and described push rod chamber, and is arranged in another one and coordinates with mutually spacing projection 24 with described groove 13.In Fig. 2, movable part comprises push rod 21, and position limiting structure comprises the groove 13 that is arranged on push rod chamber and coordinating with mutually spacing projection 24 with this groove 13 of being arranged on push rod 21.Certainly, when push rod 21 is movable part, groove 13 also can be arranged on push rod 21, intelligible, and projection 24 can be arranged on push rod chamber.In addition, stationary part 1 also can be made to comprise push rod 21, as long as it is mutually spacing to be limited to by the range of movement of movable part in preset range namely in protection scope of the present invention each other to meet projection 24 and groove 13.
A kind of detailed description of the invention be more preferably, as shown in Figure 1, described stationary part 1 comprises the tube-like piece with described push rod chamber, and described movable part comprises described push rod 21, the other end of described push rod 21 stretches out described tube-like piece, and described buoyancy aid 22 is positioned at this end of described push rod 21.In Fig. 1, buoyancy aid 22 can be fixed on this push rod 21 by welding or bonding connection mode, also can be integrally formed, all in protection scope of the present invention with push rod 21.In addition, it should be noted that, buoyancy aid 22 can be solid sphere, and also can be hollow ball, can certainly be other shapes, as hexahedron, cylinder etc., can be floating on liquid level as long as meet it, and namely in protection scope of the present invention.
A kind of preferred detailed description of the invention, as shown in Figure 1, described push rod 21 also comprises the lance 23 for coordinating to actuate described travel switch 11 with the connecting lever be arranged on described travel switch 11 be arranged on described push rod 21.In the illustrated embodiment, lance 23 is arranged on the end of push rod 21, certainly, lance 23 is arranged on push rod 21 on the outside face of end certain distance also in protection scope of the present invention.Except this, the angle between lance 23 and push rod 21 can be the arbitrary value between 0 °-180 °, can coordinate to actuate the trip switch 11 namely in protection scope of the present invention as long as meet lance 23 with the connecting lever on travel switch 11.Lance 23 also can be arranged along push rod 21 bearing of trend, and this lance 23 and push rod 21 can connect by the connection mode such as welding or bonding, also can be integrally formed, all in protection scope of the present invention.
Another kind of preferred detailed description of the invention, as shown in Figure 1, described push rod chamber is provided with spacing hole 12, and described push rod 21 is provided with and stretches out and by the spacing limiting section of the lower edges of described spacing hole 12 from described spacing hole 12.Tu1Zhong spacing hole 12 is square opening, and the spacing hole of other shapes is also in protection scope of the present invention certainly, as circular hole, and elliptical aperture, diamond hole etc.
A kind of preferred detailed description of the invention, as shown in Figure 1, described limiting section is described lance 23.In Fig. 1, lance 23 is vertically set on the end of described push rod 21, and stretch out from described spacing hole 12, the range of movement of this lance 23 is limited in the scope of spacing hole 12, thus the range of movement of lance 23 is limited by the lower edges of spacing hole 12, namely make movable part move in preset range.Certainly, as mentioned above, this limiting section also can be groove 13 in position limiting structure or projection 24, as long as can by coordinating to realize making movable part be limited in the structure of preset range, all in protection scope of the present invention.
A kind of preferred detailed description of the invention, liquid level switch as shown in Fig. 1 (right side) is suitable for detecting high liquid level, wherein, described travel switch 11 is fixed under the upper edge of described spacing hole 12 along a, under shown position, buoyancy aid 22 does not contact with liquid level, movable part is under self gravitation effect, make lance 23 spacing in the lower edge of spacing hole 12 along b, when liquid level rising touches buoyancy aid 22, under buoyancy, movable part moves, lance 23 leaves in lower edge and moves along a under upper edge along b, liquid level continues to rise, until actuate the travel switch 11 being positioned at this position under lance 23 moving on to the upper edge of spacing hole 12 along a, the trip switch 11 action, send high liquid level warning or actuate pump working, move on liquid level continues again, until the trip switch 11 contacts along a with under the upper edge of spacing hole 12, by spacing along a under this upper edge, buoyancy aid 22 no longer on move, until liquid level declines.So repeatedly make the range of movement of movable part be limited in upper edge lower along on a and lower edge along between b.
Another kind of preferred detailed description of the invention, liquid level switch as shown in Fig. 1 (left side) is suitable for detecting low liquid level, wherein, described travel switch 11 is fixed in described spacing hole 12 lower edge along b, under this shown position, buoyancy aid 22 is immersed in below liquid level, under buoyancy, lance 23 spacing under the upper edge of spacing hole 12 along a place, when liquid level declines, movable part under gravity, lance 23 moves along b in lower edge along a under starting to leave upper edge, liquid level continues to decline, until lance 23 drop to spacing hole 12 lower edge on actuate along b the travel switch 11 being positioned at this position, the trip switch 11 action, send low liquid level warning or actuate water pump and quit work, when liquid level continues to decline again, until the trip switch 11 contacts along b with in the lower edge of spacing hole 12, by spacing along b in this lower edge, buoyancy aid 22 no longer declines, until liquid level rises.So repeatedly make the range of movement of movable part be limited under upper edge along on a and lower edge along between b.
The present invention also provides a kind of fluid level control device, and wherein, this fluid level control device comprises liquid level switch provided by the invention.
A kind of preferred detailed description of the invention, as shown in Figure 1, described push rod chamber is provided with spacing hole 12, described push rod 21 is provided with and can stretches out from described spacing hole 12 and by the spacing limiting section in the edge of described spacing hole 12, described liquid level switch comprises the first liquid level switch and/or the second liquid level switch, the described travel switch 11 of described first liquid level switch is fixed on along a under the upper edge of described spacing hole 12, and the described travel switch 11 of the second liquid level switch is fixed in described spacing hole 12 lower edge along b.First liquid level switch is fixedly installed under the upper edge of spacing hole 12 along a as figure right in Fig. 1 shows travel switch 11, under shown position, buoyancy aid 22 does not contact with liquid level, movable part is under self gravitation effect, make lance 23 spacing in the lower edge of spacing hole 12 along b, when liquid level rising touches buoyancy aid 22, under buoyancy, movable part moves, lance 23 leaves in lower edge and moves along a under upper edge along b, liquid level continues to rise, until actuate the travel switch 11 being positioned at this position under lance 23 moving on to the upper edge of spacing hole 12 along a, the trip switch 11 action, send high liquid level warning or actuate pump working, move on liquid level continues again, until the trip switch 11 contacts along a with under the upper edge of spacing hole 12, by spacing along a under this upper edge, buoyancy aid 22 no longer on move, until liquid level declines.Now, second liquid level switch is immersed in below liquid level as figure left in Fig. 1 shows buoyancy aid 22, under buoyancy, lance 23 spacing under the upper edge of spacing hole 12 along a place, when liquid level declines, movable part under gravity, move along b in lower edge along a under making lance 23 leave upper edge, liquid level continues to decline, until lance 23 drop to spacing hole 12 lower edge on actuate along b the travel switch 11 being positioned at this position, the trip switch 11 action, send low liquid level warning or actuate water pump and quit work, when liquid level continues to decline again, until the trip switch 11 contacts along b with in the lower edge of spacing hole 12, by spacing along b in this lower edge, buoyancy aid 22 no longer declines, until liquid level rises.So repeatedly tank level control can be realized.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a liquid level switch, it is characterized in that, described liquid level switch comprises stationary part (1) and movable part, described stationary part (1) is provided with travel switch (11), one in described stationary part (1) and described movable part has the push rod chamber of hollow, another one have can along described push rod chamber in preset range relative to the push rod (21) moved in described push rod chamber, described movable part comprises the buoyancy aid (22) that can swim on liquid level, and the motion of described movable part can actuate described travel switch (11).
2. liquid level switch according to claim 1, is characterized in that, described stationary part (1) and described movable part are respectively arranged with position limiting structure spacing each other.
3. liquid level switch according to claim 1 and 2, it is characterized in that, described stationary part (1) comprises the tube-like piece with described push rod chamber, described movable part comprises described push rod (21), the other end of described push rod (21) stretches out described tube-like piece, and described buoyancy aid (22) is positioned at this end of described push rod (21).
4. liquid level switch according to claim 3, it is characterized in that, described push rod (21) also comprises the lance (23) for coordinating to actuate described travel switch (11) with the connecting lever be arranged on described travel switch (11) be arranged on described push rod (21).
5. liquid level switch according to claim 4, it is characterized in that, described push rod chamber is provided with spacing hole (12), described push rod (21) is provided with and can stretches out from described spacing hole (12) and by the spacing limiting section of the lower edges of described spacing hole (12).
6. liquid level switch according to claim 5, is characterized in that, described limiting section is described lance (23).
7. liquid level switch according to claim 6, is characterized in that, described travel switch (11) is fixed under the upper edge of described spacing hole (12) along (a).
8. liquid level switch according to claim 6, is characterized in that, described travel switch (11) is fixed in described spacing hole (12) lower edge along (b).
9. a fluid level control device, is characterized in that, this fluid level control device comprises the liquid level switch in claim 1-4 described in any one.
10. fluid level control device according to claim 9, it is characterized in that, described push rod chamber is provided with spacing hole (12), described push rod (21) is provided with and can stretches out from described spacing hole (12) and by the spacing limiting section of the lower edges of described spacing hole (12), described liquid level switch comprises the first liquid level switch and/or the second liquid level switch, the described travel switch (11) of described first liquid level switch is fixed on edge under the upper edge of described spacing hole (12), the described travel switch (11) of the second liquid level switch is fixed on edge in described spacing hole (12) lower edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794615.0A CN105236045A (en) | 2015-11-18 | 2015-11-18 | Liquid level switch and liquid level control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794615.0A CN105236045A (en) | 2015-11-18 | 2015-11-18 | Liquid level switch and liquid level control device |
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| Publication Number | Publication Date |
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| CN105236045A true CN105236045A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510794615.0A Pending CN105236045A (en) | 2015-11-18 | 2015-11-18 | Liquid level switch and liquid level control device |
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| CN (1) | CN105236045A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963355A (en) * | 2016-10-19 | 2018-04-27 | 四川远德安防检测设备有限公司 | A kind of tank car liquid uses up detection device |
| CN108375995A (en) * | 2016-01-14 | 2018-08-07 | 潘茜茜 | The break-make system controlled using floating body |
| CN110568871A (en) * | 2019-09-18 | 2019-12-13 | 深圳市能源环保有限公司 | water supplementing control system for slag conveyor in waste incineration power plant |
| CN117330723A (en) * | 2023-11-27 | 2024-01-02 | 嘉创环保科技有限公司 | Automatic sewage measuring device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518805A (en) * | 1991-07-10 | 1993-01-26 | Fuji Electric Co Ltd | Detecting switch for liquid level |
| CN2450694Y (en) * | 2000-12-03 | 2001-09-26 | 白彦青 | Mechanical water level controller |
| CN2681309Y (en) * | 2004-01-06 | 2005-02-23 | 昆明冶金研究院 | Inductive float liquid level switch |
| CN201622474U (en) * | 2010-03-15 | 2010-11-03 | 孙境泽 | Automatic liquid level controller |
| CN201681760U (en) * | 2010-05-22 | 2010-12-22 | 永大（中山）有限公司 | Mechanical liquid control switch |
| CN201918312U (en) * | 2010-12-29 | 2011-08-03 | 浙江吉利汽车有限公司 | Liquid level switch |
| CN203521309U (en) * | 2013-11-13 | 2014-04-02 | 君禾泵业股份有限公司 | Water pump-used mechanical water-level float switch structure |
| CN205098778U (en) * | 2015-11-18 | 2016-03-23 | 中国神华能源股份有限公司 | Liquid level switch and level control apparatus |
-
2015
- 2015-11-18 CN CN201510794615.0A patent/CN105236045A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518805A (en) * | 1991-07-10 | 1993-01-26 | Fuji Electric Co Ltd | Detecting switch for liquid level |
| CN2450694Y (en) * | 2000-12-03 | 2001-09-26 | 白彦青 | Mechanical water level controller |
| CN2681309Y (en) * | 2004-01-06 | 2005-02-23 | 昆明冶金研究院 | Inductive float liquid level switch |
| CN201622474U (en) * | 2010-03-15 | 2010-11-03 | 孙境泽 | Automatic liquid level controller |
| CN201681760U (en) * | 2010-05-22 | 2010-12-22 | 永大（中山）有限公司 | Mechanical liquid control switch |
| CN201918312U (en) * | 2010-12-29 | 2011-08-03 | 浙江吉利汽车有限公司 | Liquid level switch |
| CN203521309U (en) * | 2013-11-13 | 2014-04-02 | 君禾泵业股份有限公司 | Water pump-used mechanical water-level float switch structure |
| CN205098778U (en) * | 2015-11-18 | 2016-03-23 | 中国神华能源股份有限公司 | Liquid level switch and level control apparatus |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375995A (en) * | 2016-01-14 | 2018-08-07 | 潘茜茜 | The break-make system controlled using floating body |
| CN108375995B (en) * | 2016-01-14 | 2020-10-20 | 潘茜茜 | On-off system controlled by floating body |
| CN107963355A (en) * | 2016-10-19 | 2018-04-27 | 四川远德安防检测设备有限公司 | A kind of tank car liquid uses up detection device |
| CN110568871A (en) * | 2019-09-18 | 2019-12-13 | 深圳市能源环保有限公司 | water supplementing control system for slag conveyor in waste incineration power plant |
| CN110568871B (en) * | 2019-09-18 | 2022-10-04 | 深圳能源环保股份有限公司 | Water supplementing control system for slag conveyor in waste incineration power plant |
| CN117330723A (en) * | 2023-11-27 | 2024-01-02 | 嘉创环保科技有限公司 | Automatic sewage measuring device |
| CN117330723B (en) * | 2023-11-27 | 2024-03-12 | 嘉创环保科技有限公司 | Automatic sewage measuring device |
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