CN105551884A - Liquid level switch - Google Patents
Liquid level switch Download PDFInfo
- Publication number
- CN105551884A CN105551884A CN201510993862.3A CN201510993862A CN105551884A CN 105551884 A CN105551884 A CN 105551884A CN 201510993862 A CN201510993862 A CN 201510993862A CN 105551884 A CN105551884 A CN 105551884A
- Authority
- CN
- China
- Prior art keywords
- buoy
- liquid
- level switch
- permanent magnet
- magnet
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- 235000014676 Phragmites communis Nutrition 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet
Abstract
The invention provides a liquid level switch, which comprises a pipe body, a buoy and a magnetic sensitive switch, wherein the buoy is arranged in a pipe cavity of the pipe body in a floatable manner; a permanent magnet is arranged on the buoy; and the magnetic sensitive switch is arranged at a preset height outside the pipe body. According to the liquid level switch provided by the invention, the buoy is arranged in the pipe cavity; the permanent magnet is arranged on the buoy; the position of the buoy in the pipe cavity changes along with the liquid level change in the pipe cavity; and when the liquid level changes to the position corresponding to the magnetic sensitive switch, the permanent magnet on the buoy triggers the magnetic sensitive switch and achieves liquid level monitoring. The liquid level switch provided by the invention can be directly arranged on a pipeline, and is suitable for liquid level detection of the pipeline.
Description
Technical field
The present invention relates to level sensing field, in particular to a kind of liquid-level switch.
Background technology
Existing liquid-level switch is built-in type, and can only be installed in water tank or tank equal-volume larger container, can not be applied to as level monitoring in small volume container or pipeline, range of application is limited.
Summary of the invention
The present invention aims to provide a kind of liquid-level switch of suitable conduit level sensing.
The invention provides a kind of liquid-level switch, comprising: body; Buoy, can be arranged in the tube chamber of body by floating ground, buoy is provided with permanent magnet; Magnet-sensitive switch, is arranged on the preset height place of the outside of body.
Further, magnet-sensitive switch is tongue tube, dry reed conducting under magneticaction of tongue tube.
Further, the outer setting of body has mounting groove, and tongue tube is fixedly installed in mounting groove.
Further, tongue tube adopts epoxy encapsulation in mounting groove.
Further, buoy is the cylinder that external diameter is less than the internal diameter of tube chamber.
Further, buoy is provided with axially extending bore.
Further, permanent magnet is permanent magnet magnetic ring in the form of a ring, and permanent magnet magnetic ring is embedded on buoy.
Further, the two ends of body are provided with tube connector.
According to liquid-level switch of the present invention, by arranging buoy in tube chamber, and permanent magnet is set on buoy; buoy changes with intraluminal liquid level change in intraluminal position; when liquid level changes to the position corresponding with magnet-sensitive switch; the permanent magnet on buoy triggers magnet-sensitive switch, realize level monitoring.Liquid-level switch of the present invention can directly and be arranged on pipeline, the level sensing of suitable conduit.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the perspective view according to liquid-level switch of the present invention;
Fig. 2 is the cross-sectional view according to liquid-level switch of the present invention;
Fig. 3 is the closed condition schematic diagram according to liquid-level switch of the present invention;
Fig. 4 is the conducting state schematic diagram according to liquid-level switch of the present invention;
Description of reference numerals:
10, body; 11, mounting groove; 20, buoy; 30, permanent magnet; 40, magnet-sensitive switch.
Embodiment
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As depicted in figs. 1 and 2, according to liquid-level switch of the present invention, comprising: body 10; Buoy 20, can be arranged in the tube chamber of body 10 by floating ground, buoy 20 be provided with permanent magnet 30; Magnet-sensitive switch 40, is arranged on the preset height place of the outside of body 10.The present invention by arranging buoy 20 in tube chamber, and permanent magnet 30 is set on buoy 20; buoy 20 changes with intraluminal liquid level change in intraluminal position; when liquid level changes to the position corresponding with magnet-sensitive switch 40; permanent magnet 30 on buoy 20 triggers magnet-sensitive switch 40, realize level monitoring.
Particularly, as shown in Figure 2, body 10 is formed by upper and lower two assembling parts, and practical ultrasonic bonding is integrated, or use is threaded, and body 10 two ends are tube connector, during for installing and pipeline joint, tube connector can be light pipe joint form, also can be pipe bolted joint form.Form the tube chamber of certain stroke in body 10, the buoy 20 of band permanent magnet 30 can move in tube chamber, and liquid passes through in tube chamber, and usually, tube chamber inside has limit point, thus the range of movement of restriction buoy 20.Preferably, the outer setting of body 10 has a mounting groove 11 placing magnet-sensitive switch 40, and magnet-sensitive switch 40 is fixed in mounting groove 11.
Preferably, magnet-sensitive switch 40 is tongue tube, and tongue tube adopts epoxy encapsulation in mounting groove 11.Dry reed conducting under magneticaction of tongue tube, has higher sensitivity, improves monitoring accuracy.
Shown in composition graphs 3 and Fig. 4, buoy 20 is less than the cylinder of the internal diameter of tube chamber for external diameter, makes buoy 20 inner with liquid level free floating at tube chamber, simultaneously; the internal diameter being greater than tube chamber of the length of buoy 20, thus avoid buoy 20 at tube chamber interior overturn, be conducive to the stability ensureing buoy 20.Preferably, buoy 20 is provided with axially extending bore, is more conducive to liquid in tube chamber internal flow.Shown in composition graphs 2, permanent magnet 30 is permanent magnet 30 magnet ring in the form of a ring, and buoy 20 matter is the foamed plastic that density is less than water, and permanent magnet 30 magnet ring is embedded on buoy 20.
As shown in Figure 3, when low water level state, buoy 20 drops on bottom tube chamber, and magnet ring is away from tongue tube, and dry reed loss of excitation is in off-state; As shown in Figure 4, when high water level state, buoy 20 floats to limit point place, tube chamber upper end, and magnet ring activates dry reed near tongue tube, and dry reed is in on-state, realizes level sensing.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
According to liquid-level switch of the present invention, by arranging buoy 20 in tube chamber, and permanent magnet 30 is set on buoy 20; buoy 20 changes with intraluminal liquid level change in intraluminal position; when liquid level changes to the position corresponding with magnet-sensitive switch 40; permanent magnet 30 on buoy 20 triggers magnet-sensitive switch 40, realize level monitoring.Liquid-level switch of the present invention can directly and be arranged on pipeline, the level sensing of suitable conduit.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a liquid-level switch, is characterized in that, comprising:
Body (10);
Buoy (20), can be arranged in the tube chamber of described body (10) by floating ground, described buoy (20) be provided with permanent magnet (30);
Magnet-sensitive switch (40), is arranged on the preset height place of the outside of described body (10).
2. liquid-level switch according to claim 1, is characterized in that,
Described magnet-sensitive switch (40) is tongue tube, dry reed conducting under magneticaction of described tongue tube.
3. liquid-level switch according to claim 2, is characterized in that,
The outer setting of described body (10) has mounting groove (11), and described tongue tube is fixedly installed in described mounting groove (11).
4. liquid-level switch according to claim 3, is characterized in that,
Described tongue tube adopts epoxy encapsulation in described mounting groove (11).
5. liquid-level switch according to claim 1, is characterized in that,
The cylinder of described buoy (20) internal diameter of described tube chamber for external diameter is less than.
6. liquid-level switch according to claim 5, is characterized in that,
(20) are provided with axially extending bore to described buoy.
7. liquid-level switch according to claim 5, is characterized in that,
Described permanent magnet (30) is permanent magnet (30) magnet ring in the form of a ring, and described permanent magnet (30) magnet ring is embedded on described buoy (20).
8. liquid-level switch according to claim 1, is characterized in that,
The two ends of described body (10) are provided with tube connector.
9. liquid-level switch according to claim 1, is characterized in that,
Described body (10) is provided with and is positioned at described tube chamber two ends to limit the limit point of described buoy (20) range of movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510993862.3A CN105551884B (en) | 2015-12-23 | 2015-12-23 | Liquid-level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510993862.3A CN105551884B (en) | 2015-12-23 | 2015-12-23 | Liquid-level switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105551884A true CN105551884A (en) | 2016-05-04 |
| CN105551884B CN105551884B (en) | 2018-10-23 |
Family
ID=55831007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510993862.3A Expired - Fee Related CN105551884B (en) | 2015-12-23 | 2015-12-23 | Liquid-level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105551884B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878215A (en) * | 2017-05-11 | 2018-11-23 | 李智勇 | A kind of one-way check interval type liquid-level switch and its working method |
| CN109036955A (en) * | 2018-08-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Liquid-level switch and air-conditioning |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2023346A (en) * | 1978-06-01 | 1979-12-28 | Helphos Autolicht Schordmuelle | Liquid level switch particularly for vehicles |
| CN2149610Y (en) * | 1993-02-27 | 1993-12-15 | 徐福安 | Float type liquid level sensing device |
| GB2243953B (en) * | 1990-05-11 | 1994-08-24 | Nuovo Pignone Spa | Improved flow switch, particularly suitable for gas-fired wall boilers |
| CN2297718Y (en) * | 1996-05-31 | 1998-11-18 | 广东省南海市模具厂 | Liquid detecting controller |
| CN2373780Y (en) * | 1999-04-17 | 2000-04-12 | 宗立新 | Magnetic float-type liquid level sensor |
| CN2833859Y (en) * | 2005-05-26 | 2006-11-01 | 湖南五江轻化集团有限公司 | Magnetic controlled water flow switch with hollow magnetic float |
| CN2886789Y (en) * | 2006-04-12 | 2007-04-04 | 彭立 | Built-in dampness-free inductive switch |
| CN200969324Y (en) * | 2006-11-21 | 2007-10-31 | 金一诺 | Magnetic control switch |
-
2015
- 2015-12-23 CN CN201510993862.3A patent/CN105551884B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2023346A (en) * | 1978-06-01 | 1979-12-28 | Helphos Autolicht Schordmuelle | Liquid level switch particularly for vehicles |
| GB2243953B (en) * | 1990-05-11 | 1994-08-24 | Nuovo Pignone Spa | Improved flow switch, particularly suitable for gas-fired wall boilers |
| CN2149610Y (en) * | 1993-02-27 | 1993-12-15 | 徐福安 | Float type liquid level sensing device |
| CN2297718Y (en) * | 1996-05-31 | 1998-11-18 | 广东省南海市模具厂 | Liquid detecting controller |
| CN2373780Y (en) * | 1999-04-17 | 2000-04-12 | 宗立新 | Magnetic float-type liquid level sensor |
| CN2833859Y (en) * | 2005-05-26 | 2006-11-01 | 湖南五江轻化集团有限公司 | Magnetic controlled water flow switch with hollow magnetic float |
| CN2886789Y (en) * | 2006-04-12 | 2007-04-04 | 彭立 | Built-in dampness-free inductive switch |
| CN200969324Y (en) * | 2006-11-21 | 2007-10-31 | 金一诺 | Magnetic control switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878215A (en) * | 2017-05-11 | 2018-11-23 | 李智勇 | A kind of one-way check interval type liquid-level switch and its working method |
| CN108878215B (en) * | 2017-05-11 | 2020-05-12 | 李智勇 | One-way non-return interval type liquid level switch and working method thereof |
| CN109036955A (en) * | 2018-08-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Liquid-level switch and air-conditioning |
| CN109036955B (en) * | 2018-08-13 | 2023-12-26 | 珠海格力电器股份有限公司 | Liquid level switch and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105551884B (en) | 2018-10-23 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181023 |
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| CF01 | Termination of patent right due to non-payment of annual fee |