CN202111395U - Special interlocking mechanism - Google Patents
Special interlocking mechanism Download PDFInfo
- Publication number
- CN202111395U CN202111395U CN2011200117746U CN201120011774U CN202111395U CN 202111395 U CN202111395 U CN 202111395U CN 2011200117746 U CN2011200117746 U CN 2011200117746U CN 201120011774 U CN201120011774 U CN 201120011774U CN 202111395 U CN202111395 U CN 202111395U
- Authority
- CN
- China
- Prior art keywords
- earthed switch
- frid
- switch operating
- mounting bracket
- operating axis
- 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 - Lifetime
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Abstract
The utility model relates to a special interlocking mechanism. In the utility model, a driving trough plate is fixed on an operation shaft of a grounding switch through a bolt and can rotate freely on the operation shaft of the grounding switch with the bolt as the center; one end of a driving rod is fixedly connected with the operation shaft of the grounding switch, and the other end props against one end of the driving trough plate for driving the driving trough plate to rotate; a small hole is formed on the driving trough plate, and a button penetrates the hole and props against a lock plate; and the lock plate is mounted on a handcart of a breaker. The special interlocking mechanism provided by the utility model has the advantages of small structure and high reliability, and can be used for the interlocking of the handcart of the GE circuit breaker and the grounding switch.
Description
Technical field
The utility model relates to 35KV high pressure withdraw-type switchgear (KYN-40.5) field, specifically, is the special-purpose interlocking device of a kind of circuit breaker and earthed switch.
Background technology
Circuit breaker and earthed switch are through interlocking device the Position Control of its moving contact to be realized its function in the KYN-40.5 cabinet, thereby realize one of five anti-functions of high-tension switch cabinet, when breaker closing, do not allow earthed switch to close a floodgate.This function is very high to the reliability requirement of circuit breaker and earthed switch interlock, during breaker closing earthed switch reliably separating brake will produce misoperation, cause fault.
Existing interlocking device generally is employed in and installs a key on the earthed switch axle; When being rotated counterclockwise 90 with the dedicated operations handle when spending; Key moves to right and revolves on the sidewall that pushes up circuit breaker interlock jam plate; The earthed switch axle can't be closed a floodgate by underspin, thereby the restriction earthed switch is in the position of disconnection when breaker closing.The side is of a size of aluminizing zine plate plate thickness, is installed on the chain jam plate on the circuit breaker cart.Depend merely on sheet metal thickness and key revolves the top, because the thickness of jam plate is narrow, its mechanical strength is not enough; Easy deformation; The easy landing of key breaks away from jam plate in the process of roof pressure, so earthed switch also closes a floodgate when causing breaker closing, has lost five anti-functions; Interlocking device is unreliable, has a strong impact on the fail safe and the reliability of high voltage switchgear operation.
The utility model content
The utility model purpose is to provide a kind of special-purpose interlocking device; Device of interlocking of interlocking device is provided; Through this device; Can make face of key and jam plate revolve the position, top and contact cmpletely and keep fixing, overcome the instable defective of interlocking device's interlock of circuit breaker and earthed switch.
The utility model is realized through following technical scheme:
A kind of special-purpose interlocking device comprises jam plate, frid, key, mounting bracket, locating support, frid, earthed switch operating axis, latch, spring, stirs frid, driving lever; The said frid of stirring is fixed on the earthed switch operating axis through suit, and this stirs frid is that the center rotates freely with said latch on the earthed switch operating axis; Said driving lever one end is fixedly connected with the earthed switch operating axis, and this driving lever other end is against saidly to be stirred an end of frid and drive said rotation of stirring frid, and said frid is provided with an aperture; One end of said button passes aperture and pushes up mutually with jam plate, and said mounting bracket is two sections U type framves that differ in size, and big U type frame tips upside down on the little U type frame; Link together through the end of a transverse axis two U type framves; Constitute an enclosed construction, the other end of said button is sleeved on the transverse axis of mounting bracket, and first spring that a pair of said button plays position-limiting action is installed on this transverse axis; Be fixedly connected between said mounting bracket and the earthed switch operating axis; Parallel between the transverse axis of this earthed switch operating axis and said mounting bracket, second spring is installed on the said earthed switch operating axis, said frid links to each other with said earthed switch operating axis through locating support; Said frid links to each other with the base plate of housing handcart chamber, and said jam plate is screwed on circuit breaker cart.
The both sides of said mounting bracket are respectively equipped with a baffle plate that is used for fixing this mounting bracket, and one of them baffle plate is fixed on the transverse axis of said mounting bracket, another baffle plate be fixed on simultaneously on the transverse axis of said mounting bracket with the earthed switch operating axis on.
A split pin is installed on the said earthed switch operating axis, and around the both sides of this split pin, an end of second spring is buckled in the opening position of said mounting bracket one side plate washer to second spring respectively, and the other end of second spring is fixed on the said earthed switch operating axis.
The front panel that said frid links to each other with the base plate of housing handcart chamber links to each other.
Said interlocking device comprise one with the match earthed switch operating mechanism of work of said jam plate.
Said interlocking device comprise one match work with it the dedicated operations handle.
The operation principle of the utility model is: interlocking device of the present invention is dimeric, and a part is a jam plate, and another part is the earthed switch operating mechanism.The utility model is that this part of jam plate has been done design again, through this device, makes button and jam plate side (the thickness direction size increases, and the Width size increases) revolve the position, top and pushes up the jail fully, has improved the mechanical endurance and the reliability of interlocking device.When the earthed switch operating axis that rotates interlocking device with the dedicated operations handle turns clockwise; Earthed switch arrives make position; Stir also up time underspin of frid, at this moment mounting bracket upwarps and drives the position that button leaves the aperture on the frid, and button just breaks away from jam plate and produces distance; Guaranteed circuit breaker under the state that closes a floodgate, earthed switch can not close a floodgate.When the earthed switch operating axis that rotates interlocking device with the dedicated operations handle rotates counterclockwise; Earthed switch arrives disconnected position, stirs the also counterclockwise underspin of frid, and at this moment mounting bracket recovers the position of level; Make button insert the aperture position on the frid; Button just stretches out and contacts with jam plate, has guaranteed circuit breaker under the state that closes a floodgate, and earthed switch can not close a floodgate.
Beneficial effect: the utility model is before the earthed switch axle of interlocking device, to have added an interlock; Through this device; Can make button and jam plate face revolve the position, top and contact jail, maintenance top fully; The requirement of two position relative accuracies also reduces greatly, and the impact of drive system is also greatly reduced, and has improved the mechanical endurance and the reliability of interlocking device.This device volume is little, and is simple in structure, and reliability is high, can be applicable on the interlocking of circuit breaker cart such as GE and earthed switch.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of a kind of special-purpose interlocking device of the utility model.
Fig. 2 takes sketch map apart for the utility model part-structure.
Fig. 3 is the end view of the utility model part-structure sketch map and B structure.
Among the figure: 1. first spring, 2. button, 3. second spring, 4. mounting bracket, 5. jam plate, 6. locating support is 7. stirred frid, 8. earthed switch operating axis, 9. latch, 10. frid, 11. driving levers, 12. circuit breaker carts, 13. transverse axis, 14. baffle plates, 15. split pins.
Embodiment
Embodiment to the utility model elaborates below in conjunction with accompanying drawing: present embodiment is being to implement under the prerequisite with the utility model technical scheme; Provided detailed execution mode and concrete operating process, but the protection range of the utility model is not limited to following embodiment.
Embodiment:
Like Fig. 1, Fig. 2 and shown in Figure 3, comprise spring 1, button 2, spring 3, mounting bracket 4, jam plate 5, locating support 6 among the figure, stir frid 7, earthed switch operating axis 8, latch 9, frid 10, driving lever.Stir frid 7 and be fixed on the earthed switch operating axis 8 through latch 9, this stirs frid 7 is that the center rotates freely with latch 9 on earthed switch operating axis 8.Driving lever 11 1 ends are fixedly connected with earthed switch operating axis 8; These driving lever 11 other ends are against an end of stirring frid 7 and drive the rotation of stirring frid 7, and frid 10 is provided with an aperture A, and an end of button 2 passes aperture A and pushes up mutually with jam plate 5; Mounting bracket 4 is two sections U type framves that differ in size; Big U type frame tips upside down on the little U type frame, links together through the end of a transverse axis 13 with two U type framves, constitutes an enclosed construction.
The other end of button 2 is sleeved on the transverse axis 13 of mounting bracket 4; First spring 1 that a pair of button 2 plays position-limiting action is installed on this transverse axis 13; Be fixedly connected between mounting bracket 4 and the earthed switch operating axis 8; Parallel between the transverse axis 13 of this earthed switch operating axis 8 and mounting bracket 4, second spring 3 is installed on the earthed switch operating axis 8, frid 10 links to each other with earthed switch operating axis 8 through locating support 6; Frid 10 links to each other with the base plate of housing handcart chamber, and jam plate 5 is screwed on circuit breaker cart 12.
As shown in Figure 3; The both sides of mounting bracket 4 are respectively equipped with a baffle plate 14 that is used for fixing this mounting bracket; One of them baffle plate 14 is fixed on the transverse axis 13 of mounting bracket 4, another baffle plate 14 be fixed on simultaneously on the transverse axis 13 of mounting bracket 4 with earthed switch operating axis 8 on.A split pin 15 is installed on the earthed switch operating axis 8; Second spring 3 is respectively around the both sides of this split pin 15; One end of second spring 3 is buckled in the gap B place of mounting bracket 4 one side plate washers 14; Top band one crotch of gap B, the other end that is used to hook second spring, 3, the second springs 3 is fixed on the earthed switch operating axis 8.
The utility model is when operation: when the earthed switch operating axis 8 that rotates interlocking device with the dedicated operations handle turns clockwise; Earthed switch arrives make position; Stir also up time underspin of frid 7, at this moment mounting bracket 4 upwarps and drives the position that button 2 leaves the aperture A on the frid 10, and button 2 just breaks away from jam plate 5 and produces distance; Guaranteed circuit breaker under the state that closes a floodgate, earthed switch can not close a floodgate.
When the earthed switch operating axis 8 that rotates interlocking device with the dedicated operations handle rotates counterclockwise; Earthed switch arrives disconnected position, stirs the also counterclockwise underspin of frid 7, at this moment the position of mounting bracket 4 recovery levels; The aperture A position that button 2 is inserted on the frid 10; Button 2 just stretches out and contacts with jam plate 5, has guaranteed circuit breaker under the state that closes a floodgate, and earthed switch can not close a floodgate.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (6)
1. a special-purpose interlocking device comprises jam plate, frid, key, mounting bracket, locating support, frid, earthed switch operating axis, latch, spring, stirs frid, driving lever; It is characterized in that the said frid of stirring is fixed on the earthed switch operating axis through suit; This stirs frid is that the center rotates freely with said latch on the earthed switch operating axis, and said driving lever one end is fixedly connected with the earthed switch operating axis, and this driving lever other end is against saidly to be stirred an end of frid and drive said rotation of stirring frid; Said frid is provided with an aperture, and an end of said key passes aperture and pushes up mutually with jam plate, and said mounting bracket is two sections U type framves that differ in size; Big U type frame tips upside down on the little U type frame, links together through the end of a transverse axis with two U type framves, constitutes an enclosed construction; The other end of said key is sleeved on the transverse axis of mounting bracket; First spring that a pair of said key plays position-limiting action is installed on this transverse axis, is fixedly connected between said mounting bracket and the earthed switch operating axis, parallel between the transverse axis of this earthed switch operating axis and said mounting bracket; Second spring is installed on the said earthed switch operating axis; Said frid links to each other with said earthed switch operating axis through locating support, and said frid links to each other with the base plate of housing handcart chamber, and said jam plate is screwed on circuit breaker cart.
2. a kind of special-purpose interlocking device according to claim 1; It is characterized in that; The both sides of said mounting bracket are respectively equipped with a baffle plate that is used for fixing this mounting bracket; One of them baffle plate is fixed on the transverse axis of said mounting bracket, another baffle plate be fixed on simultaneously on the transverse axis of said mounting bracket with the earthed switch operating axis on.
3. a kind of special-purpose interlocking device according to claim 1 and 2; It is characterized in that; A split pin is installed on the said earthed switch operating axis; Around the both sides of this split pin, an end of second spring is buckled in the opening position of said mounting bracket one side plate washer to second spring respectively, and the other end of second spring is fixed on the said earthed switch operating axis.
4. a kind of special-purpose interlocking device according to claim 1 is characterized in that, the front panel that said frid links to each other with the base plate of housing handcart chamber links to each other.
5. a kind of special-purpose interlocking device according to claim 1 is characterized in that, said interlocking device comprise one with the match earthed switch operating mechanism of work of said jam plate.
6. a kind of special-purpose interlocking device according to claim 1 is characterized in that, said interlocking device comprise one match work with it the dedicated operations handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200117746U CN202111395U (en) | 2011-01-14 | 2011-01-14 | Special interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200117746U CN202111395U (en) | 2011-01-14 | 2011-01-14 | Special interlocking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111395U true CN202111395U (en) | 2012-01-11 |
Family
ID=45436845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200117746U Expired - Lifetime CN202111395U (en) | 2011-01-14 | 2011-01-14 | Special interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111395U (en) |
-
2011
- 2011-01-14 CN CN2011200117746U patent/CN202111395U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |