CN111933483A - Circuit breaker reclosing prevention interlocking mechanism - Google Patents
Circuit breaker reclosing prevention interlocking mechanism Download PDFInfo
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- CN111933483A CN111933483A CN202010838212.2A CN202010838212A CN111933483A CN 111933483 A CN111933483 A CN 111933483A CN 202010838212 A CN202010838212 A CN 202010838212A CN 111933483 A CN111933483 A CN 111933483A
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- interlocking
- limiting
- plate
- top plate
- closing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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Abstract
The invention relates to a circuit breaker reclosing prevention interlocking mechanism which is used in a spring operating device of a high-voltage circuit breaker. The spring operating device enables the output connecting lever to rotate along the assembling position fixed shaft through the rotation of the closing half shaft to realize closing operation. The interlocking mechanism for preventing reclosing of the circuit breaker comprises an interlocking connecting lever, an interlocking plate, a limiting top plate and a limiting rotating plate, wherein the interlocking connecting lever is coaxially assembled with the output connecting lever and synchronously rotates, the limiting rotating plate is assembled on the closing half shaft and synchronously rotates with the closing rod, the limiting top plate is assembled between the interlocking connecting lever and the closing half shaft, and the limiting top plate is connected with the interlocking connecting lever through the interlocking plate and moves along with the interlocking connecting lever. According to the invention, the limiting rotating plate is directly supported by the limiting top plate when the spring operating device is in a switching-on state, so that the structural stability is better, and the problems of reclosing failure prevention and the like are not easy to occur.
Description
Technical Field
The invention relates to the field of high-voltage electrical switching equipment, in particular to an interlocking mechanism for preventing reclosing of a circuit breaker.
Background
The outdoor pole-mounted vacuum circuit breaker is an important switch element of a power grid overhead line and plays a role in protecting and controlling the power grid line. The spring operating device is one of the most common modes in the operating structure of the high-voltage vacuum circuit breaker, has the characteristics of flexible design, easy meeting of power matching requirements, convenient maintenance and the like, and is widely used.
At present, the general reclosing prevention structure on the market is too simple, if the reclosing interlocking device disclosed by the Chinese utility model patent with the authorization notice number of CN206864348U and the like, the problems that the reclosing is invalid and the like are caused by the deformation of the spring and the assembly error often occur.
Disclosure of Invention
The invention provides an interlocking mechanism for preventing reclosing of a circuit breaker, which aims to solve the problems that most existing structures for preventing reclosing are poor in stability, prone to failure and the like.
The invention adopts the following technical scheme:
a circuit breaker reclosing prevention interlocking mechanism is used in a spring operating device of a high-voltage circuit breaker. The spring operating device controls the output connecting lever to rotate along the fixed shaft of the assembling position of the output connecting lever through the rotation of the closing half shaft to realize closing operation. The interlocking mechanism for preventing reclosing of the circuit breaker comprises an interlocking connecting lever, an interlocking plate, a limiting top plate and a limiting rotating plate, wherein the interlocking connecting lever and the output connecting lever are coaxially assembled and synchronously rotate, the head end of the limiting rotating plate is fixedly assembled on the closing half shaft, the limiting top plate is assembled between the interlocking connecting lever and the closing half shaft, and the limiting top plate is connected with the interlocking connecting lever through the interlocking plate and moves along with the interlocking connecting lever. When the spring operating device is in a closing state, the limiting top plate is adjacent to the limiting rotating plate and used for limiting the movement of the limiting rotating plate in the closing rotating direction of the closing half shaft. When the spring operating device is in a brake-off state, the limit top plate is driven by the interlocking crank arm to be separated from the limit rotating plate.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
according to the invention, the limiting top plate is directly used for supporting the limiting rotating plate when the spring operating device is in a closing state, so that the rotation of the closing half shaft is limited when the closing half shaft is driven to have a rotation trend. The interlocking lever arm structure is characterized in that a limiting top plate structure which is relatively independently assembled is matched with an interlocking lever arm structure used for driving the interlocking lever arm structure to move, the mutual influence between the assembly of the limiting top plate structure and other structures of a spring operating device is small, the adjustment space is large, the tolerance degree of the structure on the assembly error of a product is large, the adjustable space in the assembly and maintenance process is large, and the tolerance degree can be larger by increasing the supporting surface of the limiting top plate supporting a limiting rotating plate, namely the circuit breaker has better structural stability for preventing reclosing interlocking mechanism, and is not easy to have the problems of preventing reclosing failure and the like.
Further:
the circuit breaker anti-reclosing interlocking mechanism further comprises a top plate installation shaft, and the top plate installation shaft is fixedly arranged in the spring operating device. The head end of the limit top plate is pivoted on the top plate mounting shaft, and the tail end of the limit top plate is assembled on the interlocking plate.
The interlocking connecting lever is coaxially assembled with the output connecting lever through the head end of the interlocking connecting lever, and the tail end of the interlocking connecting lever is assembled on the interlocking plate. The interlocking plate is provided with a guide groove, and the tail end of the interlocking connecting lever and the tail end of the limit top plate can be assembled on the interlocking plate along the guide groove in a way of moving in the opposite direction and in the opposite direction.
The interlocking plate is further provided with a pin hole, the pin hole and the guide groove penetrate through the interlocking plate along the thickness direction of the interlocking plate, and the guide groove extends along the length direction of the interlocking plate. The tail end of the limit top plate is additionally provided with a turning pin which is inserted in the pin hole. The tail end of the interlocking crank arm is additionally provided with a guide pin which can be movably arranged in the guide groove in a penetrating way along the guide groove.
The interlocking mechanism for preventing the circuit breaker from reclosing further comprises an interlocking reset torsion spring, and two torsion bars of the interlocking reset torsion spring are respectively arranged adjacent to the guide pin and the turning pin.
The limiting rotating plate is additionally provided with a limiting portion, the limiting portion is arranged at the head end of the limiting rotating plate, the limiting portion is of a notch-shaped structure facing the position of the limiting top plate, and the geometric shape of the notch of the limiting portion is matched with the geometric shape of the end face of the limiting top plate.
When the spring operating device is in a closing state, the limit top plate and the limit rotating plate are adjacently arranged at the limit part. When the spring operating device is in a closing state, the limiting part is a right-angle notch-shaped structure with an opening facing the limiting top plate, and the end part of the limiting top plate adjacent to the limiting part is of a right-angle structure with two sides respectively adjacent to two side surfaces of the right-angle notch-shaped structure of the limiting part.
The end part of the tail end of the limiting rotating plate is of a smoothly-transiting curved surface structure to the position of the limiting part. When the spring operating device is in a closing state, the smoothly-transitional curved surface structure is arranged on one side of the position, facing the interlocking connecting lever, of the limiting rotating plate.
The closing half shaft is additionally provided with a closing rod, and the head end of the closing rod is fixedly assembled on the closing half shaft. The spring operating device further comprises a closing release and a manual closing and opening assembly, and the closing release and the manual closing and opening assembly are respectively used for electrically and manually driving the closing half shaft to rotate. The manual switching-on/off assembly is arranged near the tail end of the limiting rotating plate. The spring operating device through hole electrically controls the closing release to impact the tail end of the closing rod to drive the closing half shaft to rotate. The manual switching-on and switching-off assembly comprises a manual handle, a manual connecting lever and a switching-on push rod, wherein the manual handle and the manual connecting lever are coaxially assembled and synchronously rotate to be arranged, the switching-on push rod is arranged at a position, adjacent to the position of a limiting rotating plate, of the manual connecting lever, the manual handle is used for driving the switching-on push rod to move in a rotating mode through driving the manual connecting lever, and the switching-on push rod drives a switching-on half shaft to rotate to be arranged through self movement of the switching-on push rod to push the limiting.
The length direction of the switch-on rod and the length direction of the limiting rotating plate are perpendicular to each other, when the spring operating device is in a switch-on state and the limiting top plate limits the limiting rotating plate to rotate, the switch-on rod extends along the direction deviating from the position of the interlocking plate, the limiting rotating plate extends along the direction deviating from the position of the limiting top plate, and the switch-on release and the manual switch-on and switch-off assembly are respectively located on two sides of the switch-on rod.
As can be seen from the above description of the structure of the further embodiment of the present invention, compared with the prior art, the present invention has the following advantages:
firstly, the limit top plate is assembled by the top plate installation shaft, namely the assembly of the limit top plate is further independent, and the influence on the circuit breaker reclosing prevention interlocking mechanism caused by the whole assembly error of the spring operating device is reduced. And the top plate mounting shaft is assembled with the limiting top plate structure, so that the supporting strength of the limiting top plate to the limiting rotating plate can be improved, and the reclosing failure can be prevented.
And secondly, after the spring operating device is switched on, the reset of the switching-on half shaft may delay a little relative to the reset of the output connecting lever, and the invention can avoid the damage or even damage of the circuit breaker reclosing interlocking mechanism and even the structure of the spring operating device caused by the delay by the structure that the tail end of the interlocking connecting lever and the tail end of the limiting top plate can move and assemble along the guide groove in an opposite and separated way, thereby improving the stability of the product. Specifically, the invention also realizes and strengthens the effects through the structures such as the pin hole, the guide pin, the rotating pin, the interlocking reset torsion spring and the like.
Thirdly, the invention improves the supporting stability of the supporting rotating plate by the supporting top plate through the arrangement of the limiting part, and the reclosing prevention can not be realized as long as the supporting top plate is not separated from the limiting part, thereby further improving the tolerance degree of the assembly error. And the structure can visually see whether the structure is properly assembled or not through the position where the end part of the limiting top plate falls into the limiting part in the processes of assembling, overhauling and the like of the product, so that the assembly and overhauling of the product are facilitated.
Fourthly, the driving of the closing and opening half shaft is realized by respectively operating the closing rod and the limiting rotating plate through the closing release and the manual closing and opening assembly, an operating space which cannot interfere with each other is reserved for the electric control mode and the manual closing control mode, and the structural distribution in the spring operating device is optimized. And this structure realizes the control of manual combined floodgate through the function of expanding spacing commentaries on classics board, remains all required functions and simplifies the inside structure of spring operating device simultaneously, and the structure that the circuit breaker prevented reclosing interlocking device sets up more scientifically, portably promptly, reduces the cost of setting up of this structure, simplifies the production, assembly, maintenance etc. of spring operating device, promotes product market competition.
According to the invention, through the fact that the length direction of the switch-on rod is perpendicular to the length direction of the limiting rotating plate, the specific extending directions of the switch-on rod and the limiting rotating plate, the setting positions of the manual switch-on/off assembly and the switch-on release and the like, the internal structure arrangement of the spring operating device is further optimized, enough working space is reserved for all structure work, all structures are relatively independent, the production, assembly, maintenance and the like of the spring operating device are simplified, and the market competitiveness of products is improved.
Drawings
Fig. 1 is a schematic structural diagram illustrating an interlock mechanism for preventing reclosing of a circuit breaker according to a first embodiment of the present invention, in which the interlock mechanism is applied to a spring operating device and the spring operating device is in a closing state.
Fig. 2 is a schematic front view of an interlock mechanism for preventing reclosing of a circuit breaker according to an embodiment of the present invention, in which the interlock mechanism is applied to a spring operating device and the spring operating device is in an open state.
Fig. 3 is a schematic structural diagram of the circuit breaker reclosing prevention interlocking mechanism of the second embodiment of the invention applied to a spring operating device and the spring operating device in a closing state.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
Referring to fig. 1, 2 and 3, a circuit breaker reclosing prevention interlock mechanism is used in a spring operated device of a high voltage circuit breaker. The spring-operated device performs a closing operation by rotating the closing half shaft 73 to make the output crank arm 74 rotate along the assembling position thereof. The spring operating device realizes the rotation of the closing half shaft 73 by electric control and manual drive through the closing release 71 and the manual opening and closing assembly 72. The closing half shaft 73 is provided with a closing rod 731, and the head end of the closing rod 731 is fixedly assembled to the closing half shaft 73. When the spring operating device electrically controls and drives the closing half shaft 73 to rotate, the closing release 71 impacts the closing rod 731 to drive the closing half shaft 73 to rotate, and after closing is completed, the closing rod 731 resets under the driving of the closing reset torsion spring 75.
With continued reference to fig. 1, 2, and 3, the above-mentioned spring operating devices related to the closing release 71, the manual opening and closing assembly 72, the closing half shaft 73, the closing rod 731, the output crank 74, and the closing reset torsion spring 75 have been widely used in existing products, the present invention only relates to the interlock mechanism for preventing reclosing of the circuit breaker, and the detailed description of the spring operating devices and the interlock mechanism for preventing reclosing of the circuit breaker will not be repeated herein. In order to describe the specific structure of the anti-reclosing interlock mechanism of the circuit breaker, the manual opening/closing assembly 72 is not described in the first embodiment, and the second embodiment differs from the first embodiment only in that the description of the manual opening/closing assembly 72 is added to the first embodiment.
The first embodiment is as follows:
referring to fig. 1 and 2, the interlocking mechanism for preventing reclosing of the circuit breaker includes an interlocking crank arm 1, an interlocking plate 2, a limiting top plate 3, a top plate installation shaft 4, a limiting rotating plate 5 and an interlocking reset torsion spring 6, wherein the interlocking crank arm 1 and the output crank arm 74 are coaxially assembled and synchronously rotated, the top plate installation shaft 4 is fixedly arranged in a spring operation device, namely, the top plate installation shaft 4 is fixedly arranged on a spring operation device frame body at an application position of the interlocking mechanism for preventing reclosing of the circuit breaker, the head end of the limiting rotating plate 5 is fixedly arranged on the closing half shaft 73, and the limiting rotating plate 5 and the closing rod 731 are fixedly arranged on the closing half shaft 73 through respective head ends, namely, the two are both arranged by taking the closing half shaft 73 as a shaft and synchronously rotated with the closing half shaft 73. The limit top plate 3 is assembled between the interlocking crank arm 1 and the closing half shaft 73 through the top plate mounting shaft 4, and the limit top plate 3 is connected with the interlocking crank arm 1 through the interlocking plate 2 and is movably arranged along with the interlocking crank arm 1. When the spring operating device is in a closing state, the limiting top plate 3 is adjacent to the limiting rotating plate 5 and is used for limiting the movement of the limiting rotating plate 5 in the closing rotation direction of the closing half shaft 73, and the closing rotation direction of the closing half shaft 73 is the rotation direction in which the closing rod 731 drives the closing half shaft 73 to rotate after being impacted by the closing release 71. When the spring operating device is in a brake-off state, the limit top plate 3 is separated from the limit rotating plate 5 under the driving of the interlocking crank arm 1. Specifically, roof installation through hole has been seted up to above-mentioned 3 head ends of spacing roof, and roof installation through hole cover is located roof installation axle 4 tip and is fixed by an installation buckle 31, and spacing roof 3 can be pivoted in roof installation axle 4 as axle center rotation ground pivot in roof installation axle 4.
With continued reference to fig. 1 and 2, the rear end of the stopper top plate 3 is fitted to the interlocking plate 2. The interlocking lever 1 is coaxially assembled with the output lever 74 through the head end thereof, and the tail end of the interlocking lever 1 is assembled to the interlocking plate 2. The interlocking plate 2 is provided with a guide groove 21, and the tail end of the interlocking crank arm 1 and the tail end of the limit top plate 3 can be assembled on the interlocking plate 2 along the guide groove 21 in a way of moving towards and away from each other. The opposite and separated movement can be realized by that at least one of the assembly structures of the tail end of the interlocking crank arm 1 and the tail end of the limiting top plate 3 can move along the guide groove 21. Since the interlocking plate 2 is installed at a position where the limit top plate 3 supports the limit rotating plate 5, it is preferable that the assembly position of the rear end of the interlocking crank arm 1 is movably assembled along the guide groove 21. Because the moving direction that spacing roof 3 was driven by interlocking turning arm 1 is the dead axle and rotates, needs to have certain relative rotation space between spacing roof 3 and interlocking plate 2 promptly, for this embodiment realizes through the mode of round pin axle assembly. Specifically, the interlocking plate 2 is further provided with a pin hole, the pin hole and the guide groove 21 are both arranged to penetrate through the interlocking plate 2 in the thickness direction of the interlocking plate 2, and the guide groove 21 is arranged to extend in the length direction of the interlocking plate 2. A rotating pin 32 is attached to the tail end of the top plate 3, and the rotating pin 32 is inserted into the pin hole. The trailing end of the interlocking lever 1 is attached with a guide pin 11, and the guide pin 11 is movably inserted into the guide groove 21 along the guide groove 21. The two torsion bars of the interlocking return torsion spring 6 are disposed adjacent to the guide pin 11 and the turn pin 32, respectively.
With reference to fig. 1 and 2, the limit rotating plate 5 is additionally provided with a limit portion 51, the limit portion 51 is a notch-shaped structure facing the position of the limit top plate 3, and the geometric shape of the limit portion 51 is matched with the geometric shape of the end surface of the limit top plate 3, that is, after the limit top plate 3 falls into the limit portion 51, the limit rotating plate 5 can be more stably limited to rotate due to the equivalent geometric shape of the limit top plate and the limit top plate. When the spring operating device is in a closed state, the limit top plate 3 and the limit rotating plate 5 are disposed adjacent to each other at the limit portion 51. Specifically, when the spring operating device is in a closed state, the limiting portion 51 is a right-angle notch-shaped structure with an opening facing the limiting top plate 3, and the end portion of the limiting top plate 3 adjacent to the limiting portion 51 is a right-angle structure with two sides respectively adjacent to two side surfaces of the right-angle notch-shaped structure of the limiting portion 51.
With reference to fig. 1 and 2, the position from the end of the tail end of the limiting rotary plate 5 to the position of the limiting portion 51 is a smoothly transiting curved surface structure. When the spring operating device is in a closing state, the smoothly-transitional curved surface structure is arranged on one side of the position, facing the interlocking connecting lever 1, of the limiting rotating plate 5. The end part of the right-angle structure is matched with the right-angle notch-shaped limiting part 51, so that the propping strength of the limiting top plate 3 for propping the limiting rotating plate 5 can be greatly improved. The length direction of the switch-on lever 731 is perpendicular to the length direction of the limiting rotating plate 5, when the spring operating device is in a switch-on state and the limiting top plate 3 limits the limiting rotating plate 5 to rotate, the switch-on lever 731 extends along the direction deviating from the position of the interlocking plate 2, and the limiting rotating plate 5 extends along the direction deviating from the position of the limiting top plate 3.
Example two:
referring to fig. 3, the difference between the present embodiment and the first embodiment is only that the present embodiment adds a description of the manual opening and closing assembly 72, and in practical applications, most of the spring operating devices are also provided with the manual opening and closing assembly 72, and the first embodiment is omitted only for convenience of describing the specific structure of the circuit breaker reclosing prevention interlocking mechanism. Specifically, the method comprises the following steps:
referring to fig. 3, the closing release 71 and the manual opening/closing assembly 72 are respectively disposed at both sides of the closing rod 731. The manual switching-on/off assembly 72 is disposed adjacent to the tail end of the limit rotating plate 5. The manual switching-on/off assembly 72 comprises a manual handle 721, a manual connecting lever 722 and a switching-on push rod 723, wherein the manual handle 721 and the manual connecting lever 722 are coaxially assembled and synchronously rotate, the switching-on push rod 723 is arranged at a position, adjacent to the position of the limit rotating plate 5, of the manual connecting lever 722, the manual handle 721 is used for driving the switching-on push rod 723 to move by driving the manual connecting lever 722 to rotate, and the switching-on push rod 723 is arranged by driving the limit rotating plate 5 to rotate by driving the switching-on push rod 723 to move by itself. The closing push rod 723 is adjacent to the side surface of the limiting rotating plate 5 and drives the closing half shaft 73 to rotate by pushing the side surface of the limiting rotating plate 5, and the side surface of the limiting rotating plate 5 pushed by the closing push rod 723 is the side surface of the limiting rotating plate 5 deviating from the smooth-transition curved surface structure.
With continued reference to fig. 3, the specific structure of the above-mentioned manual switching-on/off assembly 72 is different from the manual switching-on/off assembly 72 commonly used in the prior art only in that the switching-on half shaft 73 in the prior art is matched with a push plate rotating synchronously therewith, the push plate is driven by the switching-on push rod 723, and the switching-on push rod 723 in this embodiment directly pushes the limit rotating plate 5, so as to simplify the push plate structure. Because the force is uncertain when the user rotates the hand handle 721, the invention directly acts the closing push rod 723 on the structure of the limit rotating plate 5, when reclosing happens, even if the user rotates the hand handle 721 with larger force, the acting force is directly pressed on the limit top plate 3 of the limit part 51 to be absorbed when the acting force is transmitted to the limit rotating plate 5, thereby preventing the situation that the internal structure of the spring operating device is directly damaged or reclosing failure is prevented when the user recloses with larger force. Even if the user rotates the manual handle 721 with a great force to damage the mechanical structure linked with the manual handle 721, the damage of the mechanical structure can be stopped by the fixing force of the limit top plate 3 against the limit part 51 to the limit rotating plate 5, such as the manual opening and closing brake component 72, and the like, so as to reduce the loss to the minimum.
Referring to fig. 1, 2 and 3, in the using process of the interlock mechanism for preventing reclosing of a circuit breaker according to the present invention, when the spring operating device is in a closing state, the limit top plate 3 is adjacent to the limit rotating plate 5, that is, the limit portion 51 is supported by the end portion of the tail end of the limit top plate 3, and is affected by the supporting, if reclosing occurs, no matter the closing release 71 strikes the closing rod 731 or the closing push rod 723 pushes the limit rotating plate 5, the limit rotating plate 5 is fixed so that the closing half shaft 73 does not rotate, thereby stopping the reclosing process. When the spring operating device is controlled to be switched off in a switching-on state, the rotation of the output connecting lever 74 drives the interlocking connecting lever 1 to synchronously rotate, the interlocking connecting lever 1 rotates to pull the tail end of the limiting top plate 3 through the interlocking plate 2, so that the limiting top plate 3 rotates by taking the top plate mounting shaft 4 as an axis, the end part of the tail end of the limiting top plate 3 is separated from the limiting part 51, and the limiting top plate 3 does not limit the switching-on of the spring operating device. When the spring operating device is switched on in the switching-off state, if the reset of the switching-on half shaft 73 is delayed relative to the reset of the output connecting lever 74, the end surface of the tail end of the limiting top plate 3 is adjacent to the smoothly-transitional curved surface structure, and the guide pin 11 can move along the guide groove 21, so that the structure does not hinder the movement of the interlocking connecting lever 1, and the circuit breaker can prevent the reclosing interlocking mechanism and the spring operating device from being damaged. The movement of the guide pin 11 along the guide slot 21 compresses the interlocking return torsion spring 6. Although the end of the tail end of the top plate 3 is adjacent to the smooth curved structure, the adjacent relationship will not hinder the reset of the rotating plate 5 (i.e. will not hinder the reset of the closing half shaft 73) due to the smooth curved structure, and further, when the rotating plate 5 is reset, the end of the tail end of the top plate 3 will fall into the limiting part 51 driven by the interlocking reset torsion spring 6, and the above-mentioned function of preventing reclosing is restored.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (10)
1. A circuit breaker anti-reclosing interlocking mechanism is used in a spring operating device of a high-voltage circuit breaker; the spring operating device controls the output connecting lever to rotate along the assembling position fixed shaft through the rotation of the closing half shaft to realize closing operation; the method is characterized in that: the interlocking device comprises an interlocking connecting lever, an interlocking plate, a limiting top plate and a limiting rotating plate, wherein the interlocking connecting lever and the output connecting lever are coaxially assembled and synchronously rotate, the head end of the limiting rotating plate is fixedly assembled on the switching-on half shaft, the limiting top plate is assembled between the interlocking connecting lever and the switching-on half shaft, and the limiting top plate is connected with the interlocking connecting lever through the interlocking plate and moves along with the interlocking connecting lever; when the spring operating device is in a closing state, the limiting top plate is adjacent to the limiting rotating plate and used for limiting the movement of the limiting rotating plate in the closing rotating direction of the closing half shaft; when the spring operating device is in a brake-off state, the limit top plate is driven by the interlocking connecting lever to be separated from the limit rotating plate.
2. The circuit breaker reclosing prevention interlocking mechanism of claim 1, wherein: the spring operating device is characterized by also comprising a top plate installation shaft, wherein the top plate installation shaft is fixedly arranged in the spring operating device; the head end of the limit top plate is pivoted on the top plate mounting shaft, and the tail end of the limit top plate is assembled on the interlocking plate.
3. The circuit breaker reclosing prevention interlocking mechanism of claim 2, wherein: the interlocking crank arm is coaxially assembled with the output crank arm through the head end of the interlocking crank arm, and the tail end of the interlocking crank arm is assembled on the interlocking plate; the interlocking plate is provided with a guide groove, and the tail end of the interlocking connecting lever and the tail end of the limit top plate can be assembled on the interlocking plate along the guide groove in a way of moving in the opposite direction and in the opposite direction.
4. The circuit breaker reclosing prevention interlocking mechanism of claim 3, wherein: the interlocking plate is also provided with a pin hole, the pin hole and the guide groove both penetrate through the interlocking plate along the thickness direction of the interlocking plate, and the guide groove extends along the length direction of the interlocking plate; a turning pin is additionally arranged at the tail end of the limit top plate and inserted into the pin hole; the tail end of the interlocking crank arm is additionally provided with a guide pin, and the guide pin can be movably arranged in the guide groove in a penetrating way along the guide groove.
5. The circuit breaker reclosing prevention interlocking mechanism of claim 4, wherein: the two torsion bars of the interlocking reset torsion spring are respectively arranged adjacent to the guide pin and the turning pin.
6. The circuit breaker reclosing prevention interlocking mechanism of claim 1, wherein: the limiting rotating plate is additionally provided with a limiting part, the limiting part is arranged at the head end of the limiting rotating plate, the limiting part is of a notch-shaped structure facing the position of the limiting top plate, and the geometric shape of the notch of the limiting part is matched with the geometric shape of the end face of the limiting top plate.
7. The circuit breaker reclosing prevention interlocking mechanism of claim 6, wherein: when the spring operating device is in a closing state, the limiting top plate and the limiting rotating plate are arranged in an abutting mode at the limiting part; when the spring operating device is in a closing state, the limiting part is a right-angle notch-shaped structure with an opening facing the limiting top plate, and the end part of the limiting top plate adjacent to the limiting part is of a right-angle structure with two sides respectively adjacent to two side surfaces of the right-angle notch-shaped structure of the limiting part.
8. The circuit breaker reclosing prevention interlocking mechanism of claim 6, wherein: the end part of the tail end of the limiting rotating plate is in a smooth transition curved surface structure to the position of the limiting part; when the spring operating device is in a closing state, the smoothly-transitional curved surface structure is arranged on one side of the position, facing the interlocking connecting lever, of the limiting rotating plate.
9. The circuit breaker reclosing prevention interlocking mechanism of any one of claims 1 to 8, wherein: the head end of the switching-on rod is fixedly assembled on the switching-on half shaft; the spring operating device also comprises a closing release and a manual closing and opening assembly, and the closing release and the manual closing and opening assembly are respectively used for electrically and manually driving the closing half shaft to rotate; the manual switching-on and switching-off assembly is arranged close to the tail end of the limiting rotating plate; the spring operating device through hole electrically controls the closing release to impact the tail end of the closing rod to drive the closing half shaft to rotate; the manual switching-on and switching-off assembly comprises a manual handle, a manual connecting lever and a switching-on push rod, wherein the manual handle and the manual connecting lever are coaxially assembled and synchronously rotate to be arranged, the switching-on push rod is arranged at a position, adjacent to the position of a limiting rotating plate, of the manual connecting lever, the manual handle is used for driving the switching-on push rod to move in a rotating mode through driving the manual connecting lever, and the switching-on push rod drives a switching-on half shaft to rotate to be arranged through self movement of the switching-on push rod to push the limiting.
10. The circuit breaker reclosing prevention interlocking mechanism of claim 9, wherein: the length direction of the switch-on rod and the length direction of the limiting rotating plate are perpendicular to each other, when the spring operating device is in a switch-on state and the limiting top plate limits the limiting rotating plate to rotate, the switch-on rod extends along the direction deviating from the position of the interlocking plate, the limiting rotating plate extends along the direction deviating from the position of the limiting top plate, and the switch-on release and the manual switch-on and switch-off assembly are respectively located on two sides of the switch-on rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838212.2A CN111933483A (en) | 2020-08-19 | 2020-08-19 | Circuit breaker reclosing prevention interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838212.2A CN111933483A (en) | 2020-08-19 | 2020-08-19 | Circuit breaker reclosing prevention interlocking mechanism |
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| CN111933483A true CN111933483A (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010838212.2A Pending CN111933483A (en) | 2020-08-19 | 2020-08-19 | Circuit breaker reclosing prevention interlocking mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783820A (en) * | 2022-04-07 | 2022-07-22 | 江苏威伦智能电气设备有限公司 | Column vacuum circuit breaker capable of simultaneously locking manual and electric switching-on and switching-off functions |
| CN118053699A (en) * | 2024-04-11 | 2024-05-17 | 福建德普乐能源科技有限公司 | Outdoor switch operating mechanism and switch breaker |
-
2020
- 2020-08-19 CN CN202010838212.2A patent/CN111933483A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783820A (en) * | 2022-04-07 | 2022-07-22 | 江苏威伦智能电气设备有限公司 | Column vacuum circuit breaker capable of simultaneously locking manual and electric switching-on and switching-off functions |
| CN114783820B (en) * | 2022-04-07 | 2023-07-21 | 江苏威伦智能电气设备有限公司 | Column vacuum circuit breaker capable of locking manual and electric switching-on and switching-off functions simultaneously |
| CN118053699A (en) * | 2024-04-11 | 2024-05-17 | 福建德普乐能源科技有限公司 | Outdoor switch operating mechanism and switch breaker |
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