CN103065851A - Knife switch with anti-loose device - Google Patents
Knife switch with anti-loose device Download PDFInfo
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- CN103065851A CN103065851A CN2012105777239A CN201210577723A CN103065851A CN 103065851 A CN103065851 A CN 103065851A CN 2012105777239 A CN2012105777239 A CN 2012105777239A CN 201210577723 A CN201210577723 A CN 201210577723A CN 103065851 A CN103065851 A CN 103065851A
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- fixed contact
- knife switch
- contact
- base plate
- locking device
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Abstract
The invention discloses a knife switch with an anti-loose device. The knife switch with the anti-loose device comprises a base plate. A fixed contact is arranged on the base plate. A moving contact which is matched with the fixed contact is further arranged on the base plate. The anti-loose device which is used for preventing the fixed contact from loosening is arranged on the fixed contact. Due to the fact the anti-loose device is arranged on the fixed contact of the knife switch, a phenomenon of loosening of the fixed contact can be effectively prevented from occurring.
Description
Technical field
The present invention relates to a kind of knife switch, especially a kind of knife switch with locking device.
Background technology
At present, be used in knife switch in life and be the simplest in the manual electrical equipment and use more a kind of low-voltage electrical apparatus, the effect of knife switch in circuit is: insulating power supply, to guarantee the safety of circuit and maintenance of equipment; The disjunction load is not as connecting continually and low-voltage circuit that breaking capacity is little or directly start small-capacity motor.Knife switch is with moving contact---plug-in strip, and by it with base on fixed contact---cutter holder seat phase wedging (or separation), with the connection (or disjunction) circuit a kind of switch.
Yet, after the moving contact on this class knife switch is pressed on the fixed contact frequently, may cause becoming flexible after fixed contact is long-time, specifically, fixed contact is comprised of two copper sheets that mutually clamp, after moving contact compresses frequently, copper sheet is outwards loosening, causes loose contact.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of knife switch with locking device, the fixed contact on this knife switch is provided with locking device, can prevent effectively that the loosening phenomenon of fixed contact from occuring.
For realizing above-mentioned technical purpose, the present invention is achieved by following technical proposals.
A kind of knife switch with locking device comprises base plate, is provided with fixed contact on the described base plate, also is provided with the moving contact that matches with described fixed contact on the described base plate, is provided with on the described fixed contact be used to the locking device that prevents that fixed contact is loosening.By such device, the phenomenon that fixed contact can not occur becoming flexible.
In the technique scheme, described locking device is flexible rod, and an end of described flexible rod is fixed on the described fixed contact, and the other end of described flexible rod is fixed on the described base plate.Because flexible rod supported fixed contact, so that after moving contact mentions, can under the effect of flexible rod, make fixed contact return to original state.
Compare with prior art, the invention has the beneficial effects as follows that adopt this device, the fixed contact on the knife switch is prone to loosening phenomenon, it is loosening namely to use pine, also can very fast being adjusted, return to the stage that moving contact and fixed contact reliably contact.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with description of drawings a kind of knife switch with locking device of the present invention is described in further detail.
Referring to Fig. 1, a kind of knife switch with locking device, comprise base plate 1, also be provided with fixed contact 2 on the described base plate 1, described fixed contact 2 includes two pairs, and every pair of fixed contact 2 all includes two copper sheets that fit, and also is provided with the moving contact 3 that matches with described fixed contact 2 on the described base plate 1, and described moving contact 3 is connected on the described base plate 1 by articulated mounting.
Described articulated mounting comprises the fixed block 4 that is arranged on the described base plate 1, is provided with dwang 5 on the described fixed block 4, and described dwang 5 passes described moving contact 3.
Be provided with on the described fixed contact 2 be used to the locking device that prevents that fixed contact 3 from becoming flexible, specifically, described locking device is flexible rod 6, and an end of described flexible rod 6 is fixed on the described fixed contact 2, and the other end of described flexible rod 6 is fixed on the described base plate 1.
After moving contact 3 is pressed on the fixed contact 2, since moving contact 3 applied a power to the fixed contact 2 after, the middle part of flexible rod 6 is projection outwards, but can be so that flexible rod 6 distortion, after mentioning moving contact 3, then flexible rod 6 will return to original state, and the fixed contact 2 that at this moment is connected with flexible rod 6 also can return to original state, so just can because of after being pressed to frequently fixed contact 2, fixed contact 2 loosening phenomenons be occured.
Also be provided with temperature sensor 8 on the described fixed contact 2, described temperature sensor connects a PLC, also connects a warning device on the PLC, and described warning device can buzzer, display, other device that is easy to warn such as light-emitting device.Described base plate is provided with cylinder corresponding to the both sides of fixed contact, is provided with the collets of being made by rubber on the cylinder rod of described cylinder.
Be provided with a fiducial temperature on the described PLC, when temperature sensor detects temperature value greater than normal temperature, open cylinder, collets are leaned at fixed contact, fixed contact 2 can be leaned against be clamped in moving contact, thereby effectively avoid moving contact and fixed contact loose contact.When temperature sensor detects temperature less than normal temperature, show that moving contact 3 reliably contacts with fixed contact 2, so PLC control cylinder 7 opens, thus cylinder 7 resiles.
When temperature sensor is held knot one minutes, the temperature that detects is during still greater than fiducial temperature, and PLC control warning device sends warning, reminds operating personnel manually to adjust fixed contact.Avoid continuous contact bad, cause moving contact and fixed contact to be burnt.Perhaps cause the generation of other security incident.
Claims (2)
1. knife switch with locking device, comprise base plate (1), be provided with fixed contact (2) on the described base plate (1), also be provided with the moving contact (3) that matches with described fixed contact (2) on the described base plate (1), it is characterized in that, be provided with on the described fixed contact (2) be used to the locking device that prevents that fixed contact (2) is loosening.
2. a kind of knife switch with locking device according to claim 1, it is characterized in that, described locking device is flexible rod (6), and an end of described flexible rod (6) is fixed on the described fixed contact (2), and the other end of described flexible rod (6) is fixed on the described base plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577723.9A CN103065851B (en) | 2012-12-27 | 2012-12-27 | A kind of knife switch with locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577723.9A CN103065851B (en) | 2012-12-27 | 2012-12-27 | A kind of knife switch with locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103065851A true CN103065851A (en) | 2013-04-24 |
| CN103065851B CN103065851B (en) | 2015-09-09 |
Family
ID=48108428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210577723.9A Expired - Fee Related CN103065851B (en) | 2012-12-27 | 2012-12-27 | A kind of knife switch with locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103065851B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957764A (en) * | 2016-07-15 | 2016-09-21 | 国家电网公司 | Device for monitoring temperature of contact of knife switch in real time |
| CN109148200A (en) * | 2018-08-14 | 2019-01-04 | 邹平县供电公司 | A kind of knife switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201773746U (en) * | 2010-07-05 | 2011-03-23 | 河南森源电气股份有限公司 | Clamping structure for switching on contact knives of isolating switch |
| US20120048705A1 (en) * | 2010-08-30 | 2012-03-01 | Panasonic Corporation | Switching device |
| CN202205636U (en) * | 2011-08-31 | 2012-04-25 | 王漳泉 | Knife switch fixing structure for disconnecting switch |
| CN203085429U (en) * | 2012-12-27 | 2013-07-24 | 宁波东博电力科技有限公司 | Knife switch with anti-loose device |
-
2012
- 2012-12-27 CN CN201210577723.9A patent/CN103065851B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201773746U (en) * | 2010-07-05 | 2011-03-23 | 河南森源电气股份有限公司 | Clamping structure for switching on contact knives of isolating switch |
| US20120048705A1 (en) * | 2010-08-30 | 2012-03-01 | Panasonic Corporation | Switching device |
| CN202205636U (en) * | 2011-08-31 | 2012-04-25 | 王漳泉 | Knife switch fixing structure for disconnecting switch |
| CN203085429U (en) * | 2012-12-27 | 2013-07-24 | 宁波东博电力科技有限公司 | Knife switch with anti-loose device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957764A (en) * | 2016-07-15 | 2016-09-21 | 国家电网公司 | Device for monitoring temperature of contact of knife switch in real time |
| CN109148200A (en) * | 2018-08-14 | 2019-01-04 | 邹平县供电公司 | A kind of knife switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103065851B (en) | 2015-09-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20151227 |
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| EXPY | Termination of patent right or utility model |