CN204390981U - A kind of position sensing switch - Google Patents
A kind of position sensing switch Download PDFInfo
- Publication number
- CN204390981U CN204390981U CN201520115265.6U CN201520115265U CN204390981U CN 204390981 U CN204390981 U CN 204390981U CN 201520115265 U CN201520115265 U CN 201520115265U CN 204390981 U CN204390981 U CN 204390981U
- Authority
- CN
- China
- Prior art keywords
- position sensing
- sensing switch
- motion bar
- main body
- cavity
- 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 - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000000565 sealant Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- Domestic Plumbing Installations (AREA)
Abstract
The utility model discloses a kind of position sensing switch, comprise main body, described main body has cavity, being provided with in cavity can the motion bar of upper and lower activity, be provided with displacement transducer in described cavity, described motion bar upper end is provided with the metal derby corresponding with this displacement transducer.In this position sensing switch structure, matched by the metal derby of inductance approach switch with motion bar upper end, the impurity effect deposited in water can be avoided, effectively prevent misoperation, substantially increase the operating accuracy of position sensing switch.
Description
Technical field
The utility model relates to a kind of sensitive switch, particularly a kind of position sensing switch.
Background technology
In water pump system, usually need installation site sensitive switch in water stream channel to control the action of water pump.In the prior art, this position sensing switch includes main body, is provided with tongue tube in main body, is set with permanent magnet outside main body, and permanent magnet bottom is connected with float, is provided with spring between float and main body.But, because this position sensing switch uses for a long time in water stream channel, permanent magnet easily adsorbs Ferromagnetic Impurities, make the size of permanent magnet become large, cause tongue tube malfunction, have impact on the operating accuracy of position sensing switch.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of position sensing switch, effectively prevents misoperation, has high operating accuracy.
In order to solve the problems of the technologies described above, a kind of position sensing switch of the present utility model, comprise main body, described main body has cavity, being provided with in cavity can the motion bar of upper and lower activity, be provided with displacement transducer in described cavity, described motion bar upper end is provided with the metal derby corresponding with this displacement transducer.
As the improvement of technique scheme, institute's displacement sensors is inductance approach switch.
As the improvement of technique scheme, described metal derby is coated with sealant layer.
As the improvement of technique scheme, described motion bar lower end is connected with check valve, is provided with back-moving spring between this check valve and main body.
As the improvement of technique scheme, described check valve is the soft plastic body of back taper.
The beneficial effects of the utility model are: in this position sensing switch structure, matched by the metal derby of inductance approach switch with motion bar upper end, the impurity effect deposited in water can be avoided, effectively prevent misoperation, substantially increase the operating accuracy of position sensing switch.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Embodiment
With reference to Fig. 1, a kind of position sensing switch of the present utility model, comprise main body 1, described main body 1 has cavity 2, being provided with in cavity 2 can the motion bar 3 of upper and lower activity, be provided with displacement transducer 4 in described cavity 2, described motion bar 3 upper end is provided with the metal derby 5 corresponding with this displacement transducer 4.Institute's displacement sensors 4 is inductance approach switches.In this position sensing switch structure, matched by the metal derby of inductance approach switch with motion bar upper end, the impurity effect deposited in water can be avoided, effectively prevent misoperation, substantially increase the operating accuracy of position sensing switch.When metal derby is when close to the proximity switch generated an electromagnetic field, metal derby inside is made to produce eddy current.This eddy current reacts to proximity switch, switch internal circuit parameter is changed, identifies thus and shift near with or without conductive body, and then the on-off of control switch.The good in anti-interference performance of proximity switch, switching frequency high (being greater than 200Hz).
Wherein, described metal derby 5 is coated with sealant layer 6, can prevents metal derby from contacting with water, avoid corroding.
In addition, described motion bar 3 lower end is connected with check valve 7, is provided with back-moving spring 8 between this check valve 7 and main body 1, and described check valve 7 is the soft plastic body of back taper, in water pump system, can be used as the check-valves of water stream channel, thus realize multifunctional integrated.
The foregoing is only preferred embodiments of the present utility model, as long as the technical scheme realizing the utility model object with basic same approach all belongs within protection range of the present utility model.
Claims (5)
1. a position sensing switch, comprise main body (1), it is characterized in that: described main body (1) has cavity (2), being provided with in cavity (2) can the motion bar (3) of upper and lower activity, be provided with displacement transducer (4) in described cavity (2), described motion bar (3) upper end is provided with the metal derby (5) corresponding with this displacement transducer (4).
2. position sensing switch according to claim 1, is characterized in that: institute's displacement sensors (4) is inductance approach switch.
3. position sensing switch according to claim 2, is characterized in that: described metal derby (5) is coated with sealant layer (6).
4. the position sensing switch according to Claims 2 or 3, is characterized in that: described motion bar (3) lower end is connected with check valve (7), is provided with back-moving spring (8) between this check valve (7) and main body (1).
5. position sensing switch according to claim 4, is characterized in that: the soft plastic body that described check valve (7) is back taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115265.6U CN204390981U (en) | 2015-02-18 | 2015-02-18 | A kind of position sensing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520115265.6U CN204390981U (en) | 2015-02-18 | 2015-02-18 | A kind of position sensing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204390981U true CN204390981U (en) | 2015-06-10 |
Family
ID=53363679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520115265.6U Expired - Fee Related CN204390981U (en) | 2015-02-18 | 2015-02-18 | A kind of position sensing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204390981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637727A (en) * | 2015-02-18 | 2015-05-20 | 柯远珍 | Position sensing switch |
-
2015
- 2015-02-18 CN CN201520115265.6U patent/CN204390981U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637727A (en) * | 2015-02-18 | 2015-05-20 | 柯远珍 | Position sensing switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160204 Address after: Pengjiang District Huang Zhuang Road 529000 Guangdong city of Jiangmen province No. 10 Building 8 1-311 Patentee after: JIANGMEN HONGKE ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 529100, 15 East Qing Hua Garden, 13 Dong Qing Nan Road, Xinhui District, Guangdong, Jiangmen, 703 Patentee before: Ke Yuanzhen |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20190410 Address after: 529100 Building 301 No. 1, No. 13, Jianghui Road, Huicheng, Xinhui District, Jiangmen City, Guangdong Province Patentee after: JIANGMEN RUIQU ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 529000 8 blocks 1-311, No. 10 Zhengzhuang Avenue, Pengjiang District, Jiangmen City, Guangdong Province Patentee before: JIANGMEN HONGKE ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |