CN2122430U - Automatic reset pull switch - Google Patents
Automatic reset pull switch Download PDFInfo
- Publication number
- CN2122430U CN2122430U CN 92218793 CN92218793U CN2122430U CN 2122430 U CN2122430 U CN 2122430U CN 92218793 CN92218793 CN 92218793 CN 92218793 U CN92218793 U CN 92218793U CN 2122430 U CN2122430 U CN 2122430U
- Authority
- CN
- China
- Prior art keywords
- relay
- contact
- switch
- load circuit
- static contacts
- 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
- 230000003068 static effect Effects 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Keying Circuit Devices (AREA)
Abstract
The utility model provides a pull-wire switch capable of automatically breaking off when power failure, which mainly comprises a pull-wire turntable with an ignition rod, a relay and a set of moving and static contacts. The rotary table is rotated to drive the ignition rod to drive the movable and static contacts to be closed, the relay is powered on to be in a self-locking state, the load circuit connected with the relay is powered on, the ignition rod returns to the original position under the action of the reset spring along with the rotary table, and the movable and static contacts are separated. When power failure occurs suddenly, the relay contact is opened to break the load circuit, and when power is transmitted again, the turntable needs to be pulled again to be conducted again to transmit power to the load circuit.
Description
The utility model relates to a kind of circuit controling switch, and being mainly used in sends a telegram here after solution has a power failure suddenly again occurs the problem of " bright lamp often " often.
Present pulling switch commonly used adopts mostly by what ratchet, conduction slide plate, back-moving spring etc. constituted and controls version disconnected, energising by backguy, exist when sending electricity again after the unexpected power failure phenomenon that " normal bright lamp " occur, cause the loss of waste of energy and electrical equipment.
The purpose of this utility model is to provide a kind of regular tap of both can having done to use, but again can auto-cutout when having a power failure suddenly, when sending electricity again, have only and affect that backguy makes, when switch is in conducting state once more, could send the formula that the automatically resets switch of electricity again for load for twice.
Technical solution of the present utility model is: be equipped with on the rotating disk that singly connects formula or doubly-linked formula pulling switch and live wire at interval the conduction slide plate and a back-moving spring of conducting, this disk edge place is fixed with a fire rod that is conducted with above-mentioned conduction slide plate.Form one group of sound contact by two conducting strips (being generally copper sheet), its movable contact spring is driven by above-mentioned fire rod, and static contact is connected to the load wiring end of switch.The normal battle of relay is in parallel with above-mentioned sound contact, and one of its coil is terminated at the static contact of above-mentioned sound contact, and the other end is connected to the zero line side of switch.
The utlity model has advantages such as reasonable in design, easy to manufacture, easy to use.
Description of drawings: accompanying drawing is an electrical schematic diagram of the present utility model
Wherein: K backguy rotating disk control switch 1, load wiring end
K
1Sound contact 2, zero line side
J
1Relay normally open point 4, live wire end
Below in conjunction with accompanying drawing operation principle of the present utility model is done further detailed description.Affect rotating disk with backguy, make control switch K and live wire conducting, its fire rod drives fixed contact K
1Movable contact spring contact with its static contact, i.e. " igniting " is the relay coil power supply, makes its normal battle of J
1Closure, the relay self-locking makes load circuit be in "on" position.Fire rod is finished " igniting " back and get back to original position with rotating disk under the effect of rotating disk back-moving spring, and the movable contact spring of sound contact separates with static contact.When occurring having a power failure suddenly, the normally opened contact J of relay
1Open.When sending electricity again, because relay contact J
1With sound contact K
1, all be in off-state, so load circuit does not have.Have only to affect backguy twice again, make rotary disk shutter K turn over out of stock after conducting once more, its fire rod drive once more the sound contact again closure make relay self-locking once more, could be again be the load circuit power supply.Between the live wire of this switch and load end, can be connected in series a dropping resistor and indicator light, whether work, be applicable under control switch and the load distance situation far away, be convenient to operating personnel and observe with display switch.
The utility model has thoroughly solved after the unexpected power failure difficult problem of " normal bright lamp " that incoming call causes again, has not only saved electric energy but also bring convenience to people's work.
Claims (1)
1, a kind of pulling switch, mainly by the backguy rotating disk of band back-moving spring and conduction slide plate, relay and one group of sound contact are formed, and it is characterized in that: fix a fire rod that is conducted with its conduction slide plate on the backguy disk edge; The movable contact spring of one group of sound contact being made up of two conducting strips is driven by above-mentioned fire rod, and its static contact is connected to the load end of switch; The normal battle of relay is in parallel with above-mentioned sound contact, and coil one end of this relay links to each other with static contact, and its other end is connected to the zero line side of switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92218793 CN2122430U (en) | 1992-05-26 | 1992-05-26 | Automatic reset pull switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92218793 CN2122430U (en) | 1992-05-26 | 1992-05-26 | Automatic reset pull switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2122430U true CN2122430U (en) | 1992-11-18 |
Family
ID=4962498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92218793 Granted CN2122430U (en) | 1992-05-26 | 1992-05-26 | Automatic reset pull switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2122430U (en) |
-
1992
- 1992-05-26 CN CN 92218793 patent/CN2122430U/en active Granted
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |