CN201032617Y - Water level control switch - Google Patents
Water level control switch Download PDFInfo
- Publication number
- CN201032617Y CN201032617Y CNU2007201069090U CN200720106909U CN201032617Y CN 201032617 Y CN201032617 Y CN 201032617Y CN U2007201069090 U CNU2007201069090 U CN U2007201069090U CN 200720106909 U CN200720106909 U CN 200720106909U CN 201032617 Y CN201032617 Y CN 201032617Y
- Authority
- CN
- China
- Prior art keywords
- water level
- stationary contact
- diaphragm
- model
- utility
- 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
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- Switch Cases, Indication, And Locking (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Push-Button Switches (AREA)
Abstract
The utility model discloses a water level control switch, which comprises a stationary contact frame I, a stationary contact frame II, a stationary contact frame III, a stationary contact frame and an inserting piece. A diaphragm is installed between an upper cover and a bottom seat, the diaphragm is contacted with a tray, the motion of the tray drives a rotating axle to rotate, and the rotating axle is contacted with two pieces of spring pieces, leading the motion of the diaphragm to drive the two pieces of spring pieces to move. The utility model has the advantages that the precision of the water level induction is high, the action is keen and reliable, the structure is novel and compact, simple and reasonable, the debugging is convenient, and the utility model also has the function of overload protection compared with the traditional water level switch.
Description
Technical field
The utility model belongs to a kind of level control switch for water.
Background technology
At present, existing level control switch for water structure is varied, inner workings and binding post mode vary, therefore, the type of level control switch for water is also varied, satisfying the needs of different use occasions, but there are shortcomings such as complex structure, low precision, action are insensitive in existing level control switch for water.
Summary of the invention
The purpose of this utility model just provides a kind of simple and reasonable, Installation and Debugging level control switch for water easily.
For achieving the above object, the technical scheme that the utility model provides is: a kind of level control switch for water, it comprises stationary contact headstock I, stationary contact headstock II, stationary contact headstock III, the stationary contact headstock, inserted sheet, diaphragm also is housed between loam cake and the base, diaphragm contacts with pallet, the pallet action drives the power transmission shaft action, and power transmission shaft contacts with two flat spring sheets, makes the action of diaphragm drive the action of two flat spring sheets.
Compared with prior art, the utlity model has induction water level precision height, be active in one's movements reliably, novel structure compactness, advantages of simple are debugged advantages such as convenient and reliable, how have compared one grade of overload protection with traditional water level switch.
Description of drawings
Fig. 1 is a structure cutaway view of the present utility model.
Fig. 2 is a cutaway view of the present utility model.
Fig. 3 is a partial sectional view of the present utility model.
Embodiment
Fig. 1, Fig. 2, level control switch for water shown in Figure 3 are made up of loam cake 1, pallet 2, fixed contact 3, driving head 4, diaphragm 5, base 6, fork 7, pressure spring I8, limited screw 9, voltage regulation screw 10, pressure spring II11, parts 12 stationary contact headstock IV13, fixed contact IV14, moving contact 15, set screw 16, fixed block 17, spring leaf 18, stationary contact headstock I19, power transmission shaft 20, stationary contact headstock III21, inserted sheet 22, limited screw II23 etc.Diaphragm 5 is pressed on the centre by loam cake 1 and base 6, and the cavity with switch body is separated into two parts simultaneously.On inserted sheet 22, fork is buckled on the base relevant position spring leaf 18, and the difficult drop-off that moves freely by fixed block 17 pressure weldings.
The utility model is made of stationary contact headstock III21, inserted sheet 22, spring leaf 18 and stationary contact headstock IV13 that the 1st gear switch one is often opened, a normally closed interlock.Stationary contact headstock I19, inserted sheet 22, spring leaf 18 and stationary contact headstock IV13 constitute the 2nd gear switch-Chang Kai ,-normally closed interlock.Constitute the blade inserting binding post with upper static contact frame and inserted sheet.
The utility model connects with system by tracheae, and the systematic water level variation is converted into pressure variation in the air cavity.Diaphragm 5 induction air cavity internal pressures change generation deformation, diaphragm 5 promotes an end of spring leaf 18 by pallet 2 power transmission shafts 20, spring leaf 18 distortion make the other end that the upset sudden change take place, thereby realize the 1st grade, the 2nd grade and the 3rd grade of normally open contact connection, functions such as normally closed interlock disconnection in succession.
The utlity model has the 1st gear switch-Chang Kai and normally closed interlock, the 2nd gear switch-Chang Kai and-normally-closed contact and the 3rd gear switch-normally opened contact.When systematic water level rose, with the three corresponding risings of air cavity pressure that link, when water level rose to the 1st gear switch control water level, the 1st gear switch normally-closed contact disconnected, and simultaneously, the 1st gear switch normally opened contact is connected; When the answer water level of decline of water table to the 1 gear switch, the 1st gear switch resets, and promptly normally-closed contact is closed connects, and normally opened contact disconnects.When water level rose to the 2nd gear switch control water level, air cavity pressure rose.Diaphragm 5 is upheld by corresponding air pressure, and by an end of pallet 2, power transmission shaft 20 promotion spring leafs 18, the distortion of spring leaf 18 makes the other end.The upset sudden change disconnects the normally-closed contact of the 2nd gear switch, and simultaneously, the normally opened contact of the 2nd gear switch is closed to be connected; When the answer water level of decline of water table to the 2 gear switch, air cavity pressure descends, and diaphragm 5 shrinks return under itself elastic force effect, and promptly normally-closed contact is closed connects, and normally opened contact disconnects.When water level rose to the 3rd gear switch control water level, air cavity pressure rose, and diaphragm 5 is upheld by corresponding gas pressure; promote spring leaf 18 actions by pallet 2, power transmission shaft 20; the 3rd grade of closed connection of normally opened contact, this contact does not have answer pressure reduction, the 3rd grade of overload protection shelves.
The utility model the 1st gear switch can pass through voltage regulation screw 10, pressure spring 8 is regulated the 1st grade of control water level, and set screw 16 and limited screw II23 regulate the answer pressure reduction of the 1st gear switch; The 2nd gear switch can regulate the 2nd grade of control water level by the 1st group of voltage regulation screw 10, pressure spring I8, set screw 16 is regulated the answer pressure reduction of the 2nd gear switch, limited screw I9, voltage regulation screw 10, pressure spring II11 regulate the 3rd gear switch control water level.
Being stamped special construction on the utility model is convenient to install.The binding post of switch is inserted sheet, is ordered on the base, can use plug special, the convenient use.Can set different the 1st gear switch control water levels and reply pressure reduction, the control water level of the 2nd gear switch and answer pressure reduction, the control water level of the 3rd gear switch according to the different requirements of system.
Claims (1)
1. level control switch for water, it comprises stationary contact headstock I (19), stationary contact headstock II (12), stationary contact headstock III (21), the stationary contact headstock (13), inserted sheet (22), it is characterized in that between described loam cake (1) and the base (6) diaphragm (5) being housed also, diaphragm (5) contacts with pallet (2), pallet (2) action drives power transmission shaft (20) action, power transmission shaft (20) contacts with two flat spring sheets (18), makes the action of diaphragm (5) drive the action of two flat spring sheets (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201069090U CN201032617Y (en) | 2007-02-28 | 2007-02-28 | Water level control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201069090U CN201032617Y (en) | 2007-02-28 | 2007-02-28 | Water level control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201032617Y true CN201032617Y (en) | 2008-03-05 |
Family
ID=39164505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201069090U Expired - Fee Related CN201032617Y (en) | 2007-02-28 | 2007-02-28 | Water level control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201032617Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737908A (en) * | 2012-06-21 | 2012-10-17 | 芜湖乐佳电器有限公司 | Water level switch of washing machine |
| CN104409277A (en) * | 2014-12-18 | 2015-03-11 | 浙江华地电子有限公司 | Air pressure switch |
| CN105200733A (en) * | 2015-08-19 | 2015-12-30 | 巢湖子阳电器有限公司 | Outer cover of water level sensor of washing machine |
| CN110881933A (en) * | 2019-12-06 | 2020-03-17 | 佛山市顺德区美的洗涤电器制造有限公司 | Water level protection switch, dish washer water supply installation and dish washer |
-
2007
- 2007-02-28 CN CNU2007201069090U patent/CN201032617Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737908A (en) * | 2012-06-21 | 2012-10-17 | 芜湖乐佳电器有限公司 | Water level switch of washing machine |
| CN102737908B (en) * | 2012-06-21 | 2015-06-10 | 芜湖乐佳电器有限公司 | Water level switch of washing machine |
| CN104409277A (en) * | 2014-12-18 | 2015-03-11 | 浙江华地电子有限公司 | Air pressure switch |
| CN104409277B (en) * | 2014-12-18 | 2016-06-01 | 浙江华地电子有限公司 | Blast switch |
| CN105200733A (en) * | 2015-08-19 | 2015-12-30 | 巢湖子阳电器有限公司 | Outer cover of water level sensor of washing machine |
| CN110881933A (en) * | 2019-12-06 | 2020-03-17 | 佛山市顺德区美的洗涤电器制造有限公司 | Water level protection switch, dish washer water supply installation and dish washer |
| CN110881933B (en) * | 2019-12-06 | 2021-05-07 | 佛山市顺德区美的洗涤电器制造有限公司 | Water level protection switch, dish washer water supply installation and dish washer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20140228 |