CN2197735Y - Safety knife switch against misuse - Google Patents
Safety knife switch against misuse Download PDFInfo
- Publication number
- CN2197735Y CN2197735Y CN 94221351 CN94221351U CN2197735Y CN 2197735 Y CN2197735 Y CN 2197735Y CN 94221351 CN94221351 CN 94221351 CN 94221351 U CN94221351 U CN 94221351U CN 2197735 Y CN2197735 Y CN 2197735Y
- Authority
- CN
- China
- Prior art keywords
- knife switch
- face board
- protection face
- lock
- packed
- 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
Abstract
The utility model relates to a safety knife switch against misuse, characterized in that a crank is provided with a panel whose inner side is provided with a latching device. The utility model has an electric appliance interlock and can prevent faulty operation effectively. The safety knife switch against misuse is a new knife switch with simple structure and high dynamic stability.
Description
The utility model relates to a kind of switch, especially relates to anti-misoperation protection snap close knife switch.
Be commonly used in the present controller switching equipment and the matching used knife switch of circuit breaker (or contactor), its live components is exposed fully, causes the careless slightly Danger Electric shock risk that promptly takes place, as HD11 type knife switch.Its dynamic stability index of such knife switch is low, resists the short-circuit current rush ability, dynamic and static contact is automatically springed open or unallowed displacement occurs.In addition also because knife switch of this type and the circuit breaker in the major loop do not have the electrical equipment interlocking, in case the bringing onto load operation might produce the great person and equipment breakdown.
The purpose of this utility model be to overcome the deficiency of prior art and provide a kind of simple in structure, dynamic stability is high, electrical interlock is arranged and can effectively prevent the protection snap close knife switch of misoperation.
The purpose of this utility model is achieved in that
Install a protection face board that can shelter from live components on the handle of the present utility model, the screw of passing through in this protection face board inboard is installed in and its top is housed on the holder on the protection face board installs the post that revolves that knob, an end that is exposed at the protection face board outside is shaped on a biasing post, this biasing post can penetrate in the hole of ┐ shape plate of the axis lock end vertical with revolving mast axis, and lock can pass the travel switch that the Kong Bingyu that is packed in the jam plate on the base is packed on the jam plate and touch mutually.
Advantage of the present utility model and good effect are:
1. protection face board has also been decorated the outward appearance of knife switch when playing electroshock-proof function;
2. mechanical lock buckle and electrical interlock are controlled by same knob, and be simple to operate, and reliable operation plays the function that mechanical, electrical dual interlock cooperates voluntarily simultaneously;
3. the operation of the knob of interlock and knife switch is carried out respectively, operation force concentration not only, and utilize and realize circuit breaker (or contactor) connection after knife switch closes a floodgate the off time of operating, before the knife switch separating brake, disconnect, guaranteed closure and the disconnection of knife switch under no-load condition;
4. mechanical lock buckle not only prevents misoperation effectively, and has strengthened dynamic stability effectively, has improved the ability of resisting short circuit current.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model embodiment is further described:
Install a protection face board 14 that can shelter from live components on the handle 9.Be fixed with moving contact 15 in the protection face board inboard, be generally three moving contacts of three-phase.This moving contact is hinged with the bearing 16 that is packed on the base 1.On the anterior relevant position of moving contact, the fixed contact 20 that is packed on the base is arranged, generally also should be three fixed contacts mutually.Also be shaped on a spacing flanging 5 on the fixed contact.A holder 13 is arranged between any two adjacent moving contacts, and this holder is packed on the protection face board by screw 10.Be equipped with one and revolve post 11 on holder, this revolves the capital end and installs a knob 12 that is exposed at the protection face board outside, and end is shaped on a biasing post 18, and this biasing post can penetrate in the hole of shape plate 19 of the axis lock vertical with revolving mast axis 8 ends.Lock shape plate can be welded together.And the fixed contact of holder relevant position between on base, install a jam plate 4 by screw 3 and backing plate 2, this jam plate top installs one stroke switch 6 by screw 7.Lock can pass the Kong Bingyu travel switch of making on the jam plate and touch mutually.Binding post 17 also is housed on base.Binding post is contained in the front in the present embodiment, also can be contained in the base reverse side.
The utility model operation principle is:
Close a floodgate: state as shown in Figure 1.
Driving handle makes moving contact enter fixed contact, and reaches the spacing flanging of fixed contact place, and rotary knob made lock enter in jam plate the hole in and touched travel switch this moment, and travel switch moves, and realizes electric and mechanical interlocking.
Separating brake:
Rotary knob makes lock withdraw from the jam plate hole, position shown in the lock dotted line.Travel switch resets, and has removed mechanical lock buckle and electrical interlock, and knife switch has been located idling, moves down handle again, and dynamic and static contact is separated.
Claims (1)
1, a kind of anti-misoperation protection snap close knife switch, by base, handle, moving contact, fixed contact, bearing constitutes, it is characterized in that: install a protection face board that can shelter from live components on the handle, the screw of passing through in this protection face board inboard is installed in and its top is housed on the holder on the protection face board installs a knob that is exposed at the protection face board outside, end is shaped on the post that revolves of a biasing post, this biasing post can penetrate in the hole of ┑ shape plate of the axis lock end vertical with revolving mast axis, and lock can pass the travel switch that the Kong Bingyu that is packed in the jam plate on the base is packed on the jam plate and touch mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221351 CN2197735Y (en) | 1994-09-15 | 1994-09-15 | Safety knife switch against misuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94221351 CN2197735Y (en) | 1994-09-15 | 1994-09-15 | Safety knife switch against misuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2197735Y true CN2197735Y (en) | 1995-05-17 |
Family
ID=33835672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94221351 Expired - Fee Related CN2197735Y (en) | 1994-09-15 | 1994-09-15 | Safety knife switch against misuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2197735Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887811A (en) * | 2010-07-06 | 2010-11-17 | 杭州电力设备制造有限公司 | Mechanical error-preventing locking mechanism |
| CN102629524A (en) * | 2012-03-16 | 2012-08-08 | 山东卓尔电气有限公司 | Anti-misoperation knife switch |
| CN106057510A (en) * | 2016-07-27 | 2016-10-26 | 无锡市华通电力设备有限公司 | Limit switch with eccentric wheels |
-
1994
- 1994-09-15 CN CN 94221351 patent/CN2197735Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887811A (en) * | 2010-07-06 | 2010-11-17 | 杭州电力设备制造有限公司 | Mechanical error-preventing locking mechanism |
| CN102629524A (en) * | 2012-03-16 | 2012-08-08 | 山东卓尔电气有限公司 | Anti-misoperation knife switch |
| CN106057510A (en) * | 2016-07-27 | 2016-10-26 | 无锡市华通电力设备有限公司 | Limit switch with eccentric wheels |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210429585U (en) | Switch | |
| CN2197735Y (en) | Safety knife switch against misuse | |
| CN201051464Y (en) | Principle axis and ground rotating axis interlock machine for insulation switch | |
| CN211654619U (en) | Interlocking mechanism of power distribution control equipment | |
| CN201655634U (en) | Triolocation auxiliary switch of high-voltage switch | |
| CN209401892U (en) | Misplug prevention device and earth leakage protective socket for socket | |
| CN2741167Y (en) | Switch device | |
| CN217334819U (en) | Pull-out locking and unlocking mechanism | |
| CN2722480Y (en) | Mechanically actuating locker of armoured switching cabinet | |
| CN216133810U (en) | Isolating switch easy to turn over | |
| CN2033942U (en) | Vacuum circuit breaker | |
| CN217182062U (en) | Double-switch small-volume operating mechanism and locking device | |
| CN220189468U (en) | Intelligent dual-power automatic change-over switch | |
| CN211605023U (en) | Mechanical interlocking device of double-power switch vacuum circuit breaker | |
| CN2498949Y (en) | Squeezer for fruit and vegetable | |
| CN2149036Y (en) | Control button | |
| CN220796612U (en) | Indicating mechanism and leakage circuit breaker | |
| CN213936082U (en) | Leakage closing device of leakage protection circuit breaker | |
| CN219017510U (en) | Draw-out switch | |
| CN2523012Y (en) | Small-sized D.C. electromagnetic on-off device | |
| CN2450775Y (en) | Rotary load isolating switch | |
| CN205911200U (en) | Fit switch | |
| CN211294971U (en) | Mechanical interlocking device for contactor | |
| CN212485255U (en) | Pull ring mechanism of plug-in circuit breaker and circuit breaker | |
| CN2364601Y (en) | Automatic device for preventing misoperation electric shock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |