CN201488782U - Liquid level sensing device - Google Patents
Liquid level sensing device Download PDFInfo
- Publication number
- CN201488782U CN201488782U CN2009202094154U CN200920209415U CN201488782U CN 201488782 U CN201488782 U CN 201488782U CN 2009202094154 U CN2009202094154 U CN 2009202094154U CN 200920209415 U CN200920209415 U CN 200920209415U CN 201488782 U CN201488782 U CN 201488782U
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- CN
- China
- Prior art keywords
- liquid level
- ball float
- sensing device
- level sensing
- magnetic element
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- Level Indicators Using A Float (AREA)
Abstract
The utility model provides a liquid level sensing device, which comprises a body, a reed switch, a floating ball and a magnetic element; the reed switch is arranged in the body; the floating ball and the magnetic element are arranged on the side edge of the body; the position of the reed switch corresponds to the position of the magnetic element; the floating ball is rigidly connected with the magnetic element; and the floating ball and the magnetic element are movably connected to the body. The floating ball has the advantages of high pressure resistance and good sealing property; and the matching mode of the floating ball and the body ensures that the device has the advantage of vicidity resistance when sensing the liquid level, and the accuracy of measuring the liquid level can be guaranteed.
Description
Technical field
The utility model relates to a kind of liquid level sensing device, and particularly ball float has the advantage of crushing resistance height, good airproof performance, and the fit system of ball float and body when making sensed level, has the liquid level sensing device of anti-stick consistence.
Background technology
In the accumulator tank of contain fluid, typically use liquid level sensing device and monitor the height of liquid level, give the alarm or function such as stoppage protection to reach.
See also Fig. 1, it is existing a kind of liquid level sensing device synoptic diagram, and liquid level sensing device mainly comprises a body 11 and a ball float 12.This body 11 is to be vertically installed in the liquid storing tank, and is provided with magnetic reed switch in body 11 inner certain height places.This ball float 12 is sheathed on this body 11; its inside is provided with magnet; and can be along with the variation of liquid level along these body 11 upper and lower moving; the magnetic reed switch action of the magnetic force induction body 11 of this magnet of nationality; can and then reach and send signal, and control gives the alarm, stop liquid flows into or flow out defencive function such as this accumulator tank.
But existing this material level sensing apparatus still exists following defective:
1, because ball float 12 is sheathed on this body 11, therefore need on ball float 12, get out through hole, so that body 11 can run through this ball float 12.Yet the ball float 12 after the boring can make the withstand voltage reduction of itself, deforms easily under the excessive situation of ambient pressure, thereby influences the sensing precision.
2, because ball float 12 is up and down along body 11, therefore the boundary at body 11 and ball float 12 through holes is easy to generate the gap, and liquid of vicidity is attached on the body 11, and ball float 12 can not can produce bigger influence to level gauging as freely moving up and down.
The utility model content
The purpose of this utility model provides a kind of liquid level sensing device, and is poor to solve existing liquid level sensing device crushing resistance, and overcomes the problem of toughness level gauging easily.
The utility model proposes a kind of liquid level sensing device, comprise body, magnetic reed switch, ball float and magnetic element, magnetic reed switch is arranged on body interior, ball float and magnetic element are arranged on the side of body, the position of magnetic reed switch is corresponding with the position of magnetic element, ball float links to each other with magnetic element is rigid, and ball float and magnetic element are movably connected on the body.
According to the described liquid level sensing device of the utility model preferred embodiment, magnetic element is a magnet.
According to the described liquid level sensing device of the utility model preferred embodiment, it also comprises support member, rigid being fixedly linked in flanging position of support member and ball float, and with rigid the fixedlying connected of magnetic element one end.
According to the described liquid level sensing device of the utility model preferred embodiment, it also comprises latch closure, its around and be fixed on the body, and the aperture position of latch closure is provided with the bar that is rotatably connected, the bar that is rotatably connected runs through support member one end, and latch closure and support member are movably connected.
According to the described liquid level sensing device of the utility model preferred embodiment, the ball float profile is set to sphere.
According to the described liquid level sensing device of the utility model preferred embodiment, the ball float profile is set to cylindricality.
The beneficial effects of the utility model are:
1, the utility model is arranged on the side of body with ball float and magnet, thereby need not to hole on ball float, makes ball float have stronger resistance to pressure, can not be out of shape easily, has guaranteed the measuring accuracy of liquid level sensing device.
2, because ball float of the present utility model need not be holed, therefore also avoided liquid of vicidity to be attached to body and ball float gap location, caused ball float further not guaranteed the measuring accuracy of liquid level sensing device as freely moving up and down.
Certainly, implement arbitrary product of the present utility model and must not necessarily need to reach simultaneously above-described all advantages.
Description of drawings
Fig. 1 is existing a kind of material level sensing apparatus synoptic diagram;
Fig. 2 is a kind of liquid level sensing device organigram of the utility model embodiment;
Fig. 3 is the measurement view of a kind of liquid level sensing device of the utility model embodiment;
Fig. 4 is the measurement view of the another kind of liquid level sensing device of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, specify the utility model.
See also Fig. 2, it is a kind of liquid level sensing device synoptic diagram of the utility model embodiment.This liquid level sensing device comprises body 21, magnetic reed switch, ball float 22 and support member 23.Magnetic reed switch is arranged on body 21 inside (not illustrating among the figure), and its position is corresponding with support member 23.
Rigid being fixedly linked between ball float 22 and the support member 23, thus support member 23 can together rotate along with ball float 22.In the present embodiment, link to each other by a flanging position 26 between ball float 22 and the support member 23, flanging position 26 1 ends are fixedlyed connected with the centre position of ball float 22 is rigid, and the other end links to each other with an end of support member 23.Can be fixing between flanging position 26 and ball float 22, the support member 23 by welding.
In practice, body 21 vertically be put into liquid storing tank, see also Fig. 3, it is a kind of liquid level sensing device measurement view of the utility model embodiment.In the present embodiment, therefore liquid in the liquid storing tank does not arrive the height of ball float 22, because the action of gravity of ball float 22 itself, it is downward-sloping to make ball float 22 drive support members 23, make support member 23 away from magnetic reed switch 31, and make magnetic reed switch 31 be in the state of disconnection.
And when the liquid in the liquid storing tank arrives ball float 22 height, as shown in Figure 4,, make it return to horizontal level, and drive support member 23 near magnetic reed switch 31 because ball float 22 is subjected to the buoyancy that liquid makes progress.And, because the magneticaction of 23 pairs of magnetic reed switchs 31 of support member, makes magnetic reed switch 31 closures, and then reach output signal, and control gives the alarm, stop liquid flows into or flow out defencive function such as this accumulator tank.
Especially, ball float of the present utility model can be can be circular or columniform, and its shape can be provided with according to the liquid environment of actual measurement.And therefore spherical ball float is optimal selection of the present utility model because it has best resistance to pressure.
In addition, the support member 23 described in the foregoing description also can be replaced by other element or circuit structure with magnetic, and support member 23 is the easiest when mounted, so magnet is optimal selection of the present utility model.
Liquid level sensing device of the present utility model is arranged on the side of body with ball float and magnet, thereby need not hole on ball float, has strengthened the resistance to pressure of ball float, has also overcome the bigger shortcoming of liquid of vicidity measuring error effectively.
More than disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto, any those skilled in the art can think variation, all should drop in the protection domain of the present utility model.
Claims (6)
1. liquid level sensing device, it is characterized in that, comprise a body, a magnetic reed switch, a ball float and a magnetic element, this magnetic reed switch is arranged on this body interior, this ball float and this magnetic element are arranged on the side of this body, the position of this magnetic reed switch is corresponding with the position of this magnetic element, and this ball float links to each other with this magnetic element is rigid, and this ball float and this magnetic element are movably connected on this body.
2. liquid level sensing device as claimed in claim 1 is characterized in that, this magnetic element is a magnet.
3. liquid level sensing device as claimed in claim 1 is characterized in that it also comprises a support member, rigid being fixedly linked in flanging position of this support member and this ball float, and with rigid the fixedlying connected of this magnetic element one end.
4. liquid level sensing device as claimed in claim 3 is characterized in that it also comprises a latch closure, its around and be fixed on this body, and the aperture position of this latch closure is provided with the bar that is rotatably connected, and this bar that is rotatably connected runs through an end of this support member, and this latch closure and this support member are movably connected.
5. liquid level sensing device as claimed in claim 1 is characterized in that, this ball float profile is set to sphere.
6. liquid level sensing device as claimed in claim 1 is characterized in that, this ball float profile is set to cylindricality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202094154U CN201488782U (en) | 2009-09-08 | 2009-09-08 | Liquid level sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202094154U CN201488782U (en) | 2009-09-08 | 2009-09-08 | Liquid level sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201488782U true CN201488782U (en) | 2010-05-26 |
Family
ID=42427656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202094154U Ceased CN201488782U (en) | 2009-09-08 | 2009-09-08 | Liquid level sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201488782U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110695A (en) * | 2016-11-24 | 2017-08-29 | 深圳市大疆创新科技有限公司 | Liquid level gauge, agricultural plant protection machine and liquid level determination methods |
| CN111521242A (en) * | 2019-02-01 | 2020-08-11 | 和光工业股份有限公司 | Liquid level detection device |
-
2009
- 2009-09-08 CN CN2009202094154U patent/CN201488782U/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110695A (en) * | 2016-11-24 | 2017-08-29 | 深圳市大疆创新科技有限公司 | Liquid level gauge, agricultural plant protection machine and liquid level determination methods |
| WO2018094632A1 (en) * | 2016-11-24 | 2018-05-31 | 深圳市大疆创新科技有限公司 | Level gauge, agricultural plant protection machine and level determination method |
| CN111521242A (en) * | 2019-02-01 | 2020-08-11 | 和光工业股份有限公司 | Liquid level detection device |
| CN111521242B (en) * | 2019-02-01 | 2021-08-31 | 和光工业股份有限公司 | Liquid level detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20150107 Decision number of declaring invalidation: 24846 Granted publication date: 20100526 |