CN210516512U - Circuit breaker with earthing switch - Google Patents
Circuit breaker with earthing switch Download PDFInfo
- Publication number
- CN210516512U CN210516512U CN201921481048.3U CN201921481048U CN210516512U CN 210516512 U CN210516512 U CN 210516512U CN 201921481048 U CN201921481048 U CN 201921481048U CN 210516512 U CN210516512 U CN 210516512U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- grounding
- energy storage
- circuit breaker
- main
- 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.)
- Active
Links
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model relates to a high tension switchgear field, in particular to take earthing switch's circuit breaker. The circuit breaker comprises a circuit breaker frame, a main fracture structure, a main rotating shaft, a grounding switch module and an energy storage assembly, wherein the grounding switch module comprises a static contact, a moving contact and a grounding rotating shaft, and the energy storage assembly comprises a connecting framework and an energy storage spring; the grounding rotating shaft is arranged in parallel with the main rotating shaft, a crank arm structure is arranged on the grounding rotating shaft, one end of a connecting framework is matched with the main rotating shaft, the other end of the connecting framework is matched with the crank arm structure, the connecting framework and the main rotating shaft form a rotating pair, one of the crank arm structure and the connecting framework is provided with a connecting long groove, the other is fixedly provided with a connecting pin, and the connecting pin is arranged in the connecting long groove in a penetrating manner; the energy storage spring is installed on connecting the skeleton, and when connecting lever structure rotated towards the main pivot, compression energy storage spring stored energy, and when connecting lever structure rotated dead point position, energy storage spring released can and promoted connecting lever structure and rotate. The circuit breaker is used for solving the problems of complex structure and large volume of the existing circuit breaker.
Description
Technical Field
The utility model relates to a high tension switchgear technical field, in particular to take earthing switch's circuit breaker.
Background
In the switch cabinet for multiple electric power systems, all can use the circuit breaker of taking earthing switch, this kind of circuit breaker can control earthing switch combined floodgate ground connection after main fracture structure separating brake to guarantee maintainer's personal safety.
Be equipped with in present take earthing switch's the circuit breaker and be used for driving moving contact pivoted ground connection pivot in the earthing switch, be equipped with the energy storage mechanism who is used for the energy storage in the ground connection pivot, energy storage mechanism's one end and ground connection pivot normal running fit, the other end and the support frame normal running fit of installing on the circuit breaker frame, in earthing switch separating brake stroke and closing stroke, energy storage mechanism begins the energy storage in the first half section of ground connection pivot pivoted, energy storage mechanism release energy in the second half section, thereby make earthing switch close a floodgate or separating a floodgate fast, and then reduce maintainer's the operation degree of difficulty.
In the above-mentioned circuit breaker with earthing switch, energy storage mechanism's one end and the support frame normal running fit of installing on the circuit breaker frame, then need set up the support frame specially on the circuit breaker frame, this leads to the structure relatively complicated and manufacturing inconvenient, in addition, still need reserve the installation space of support frame on the circuit breaker frame, and need consider when arranging the support frame and can not interfere with circuit breaker owner pivot mutually, just so lead to the structure of whole circuit breaker comparatively complicated and the volume great.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take earthing switch's circuit breaker for solve the complicated and bulky problem of current circuit breaker structure that takes earthing switch.
In order to achieve the above object, the utility model provides a circuit breaker with earthing switch adopts following technical scheme:
the circuit breaker with the grounding switch comprises:
a circuit breaker frame;
a main break structure assembled on the breaker frame;
the main rotating shaft is assembled on the breaker frame and is in transmission connection with a driving contact in the main fracture structure;
the grounding switch module is arranged on the breaker frame and comprises a grounding fixed contact, a grounding moving contact and a grounding rotating shaft, and the grounding rotating shaft is in transmission connection with the grounding moving contact and drives the grounding moving contact to perform opening and closing actions;
the grounding rotating shaft and the main rotating shaft are arranged in parallel;
the energy storage assembly is arranged between the grounding rotating shaft and the main rotating shaft;
a crank arm structure is arranged on the grounding rotating shaft, the energy storage assembly comprises a connecting framework, one end of the connecting framework is matched with the main rotating shaft, the other end of the connecting framework is matched with the crank arm structure, the connecting framework and the main rotating shaft form a rotating pair, the rotating axis of the rotating pair is coaxial with the main rotating shaft, one of the crank arm structure and the connecting framework is provided with a connecting elongated slot, the other is fixedly provided with a connecting pin, the connecting pin is arranged in the connecting elongated slot in a penetrating manner, and the connecting framework is driven to rotate when the crank arm structure rotates along with the grounding;
the energy storage assembly further comprises an energy storage spring, the energy storage spring is installed on the connecting framework, when the connecting lever structure rotates towards the main rotating shaft, the energy storage spring is compressed to store energy, and when the connecting lever structure rotates over a dead point position, the energy storage spring releases energy and pushes the connecting lever structure to rotate.
The utility model provides a circuit breaker with earthing switch's beneficial effect is: the energy storage assembly in the circuit breaker is installed between the grounding rotating shaft and the main rotating shaft, one end of a connecting framework of the energy storage assembly is matched with the main rotating shaft, the other end of the connecting framework of the energy storage assembly is matched with the grounding rotating shaft, a special support frame is not required to be arranged to support the energy storage assembly, the structural complexity in the circuit breaker is simplified, the difficulty in circuit breaker arrangement is reduced, meanwhile, the space for arranging the support frame is saved, and the whole size of the circuit breaker is small.
Furthermore, the connecting framework comprises a bone piece, the energy storage spring is installed on the bone piece, one end of the bone piece is provided with a rotating matching structure which is used for forming a rotating pair with the main rotating shaft, the connecting long groove is formed in the bone piece, and the connecting pin is installed on the crank arm structure. By the arrangement, the crank arm is simple in structure and low in manufacturing cost.
Furthermore, the crank arm structure comprises two arm plates which are axially fixed on the grounding rotating shaft at intervals, the connecting pin is connected between the two arm plates, and when the crank arm structure drives the connecting framework to rotate, the connecting pin presses the energy storage spring to compress the energy storage spring. The energy storage spring is pressed by the connecting pin, so that the device is stable.
Furthermore, the energy storage spring is sleeved on the connecting framework. By the arrangement, the connecting framework has a simple structure and various forms, such as plate shape, rod shape, cylinder shape and the like.
Furthermore, the connecting framework comprises a bone piece and an arc-shaped clamping ring arranged at one end of the bone piece, and the connecting framework is matched with the main rotating shaft through the arc-shaped clamping ring to form a revolute pair. The connecting framework in the form is simple in structure and convenient to install.
Furthermore, the connecting framework is of a plate body structure, the plate surface is perpendicular to the main rotating shaft, and a limiting structure used for limiting the axial position of the arc-shaped clamping ring is arranged on the main rotating shaft. The connection framework of the plate body shape is simple, and the processing and the manufacturing are convenient.
Furthermore, limit structure is the annular of seting up in main pivot, and the cell wall of annular carries out the axial spacing to the arc snap ring. This form of spacing structure is convenient to realize.
Furthermore, a plurality of supporting protrusions are arranged on the inner side surface of the arc-shaped clamping ring at intervals along the circumferential direction of the arc-shaped clamping ring, and the arc-shaped clamping ring is in contact with the main rotating shaft through the supporting protrusions. Set up the support protrusion, then the medial surface of arc snap ring only supports protruding and main pivot contact, and area of contact is less, and it is less at both normal running fit in-process frictions, has so not only reduced the rotation degree of difficulty of ground connection pivot, has weakened the noise that produces between connection skeleton and the main pivot moreover.
Furthermore, the energy storage assemblies are more than two and are arranged at intervals along the axial direction of the grounding rotating shaft. Set up like this, the energy of storing in the energy storage component is more after the same angle is rotated to ground connection pivot, and further the reliability of the divide-shut brake work of ground connection switch module has been guaranteed.
Furthermore, two spring pressing plates are further arranged in the energy storage assembly, are installed on the connecting framework and are located at two ends of the energy storage spring. The spring pressing plate can fully cover the end part of the energy storage spring, and the energy storage spring is ensured not to be inclined in the process of compressing the energy storage spring.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a circuit breaker with a grounding switch provided in the present invention;
fig. 2 is a schematic connection diagram of the main rotating shaft, the grounding rotating shaft and the energy storage assembly in the embodiment of the circuit breaker with the grounding switch provided by the present invention;
fig. 3 is a schematic structural diagram of a connection board in an embodiment of the circuit breaker with the grounding switch provided by the present invention;
fig. 4 is a schematic structural diagram of a main rotating shaft in an embodiment of the circuit breaker with the grounding switch provided by the present invention;
fig. 5 is a schematic structural diagram of a spring pressing plate in an embodiment of the circuit breaker with the grounding switch provided by the present invention.
In the drawings: 1-a breaker frame, 2-a main fracture structure, 3-a main rotating shaft, 4-a grounding rotating shaft, 5-a grounding moving contact, 6-a grounding static contact, 7-a crank arm structure, 8-an energy storage component, 9-a stop shaft, 10-a brake-separating stop bulge, 11-a closing stop bulge, 12-an arm plate, 13-a connecting pin, 14-a connecting plate, 15-an energy storage spring, 16-a spring pressing plate, 17-a main plate body, 18-a connecting elongated slot, 19-an arc-shaped clamping ring, 20-a supporting bulge, 21-an annular slot and 22-a through hole.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
The utility model provides an embodiment of circuit breaker with earthing switch:
as shown in fig. 1, the circuit breaker includes a circuit breaker frame 1, the circuit breaker frame 1 serves as an installation foundation of the whole circuit breaker, a main fracture structure 2 and a main rotating shaft 3 of the circuit breaker are installed in the circuit breaker frame 1, the main rotating shaft 3 is in running fit with the circuit breaker frame 1 and is in transmission connection with a driving contact in the main fracture structure 2, and the main rotating shaft 3 drives the driving contact to perform opening and closing actions.
As shown in fig. 1, a grounding switch module is further installed in the breaker frame 1, the grounding switch module includes a grounding rotating shaft 4 rotationally matched with the breaker frame 1, a grounding moving contact 5 in transmission connection with the grounding rotating shaft 4, and a grounding static contact 6 fixed in the breaker frame 1, the grounding rotating shaft 4 is arranged in parallel with the main rotating shaft 3; in this embodiment, in order to improve the structural compactness of the whole circuit breaker, the grounding fixed contact 6 and the main fracture structure 2 are integrated together; the grounding rotating shaft 4 drives the grounding moving contact 5 to perform opening and closing actions.
As shown in fig. 1 and fig. 2, two energy storage assemblies 8 are installed between the main rotating shaft 3 and the grounding rotating shaft 4, and the two energy storage assemblies 8 are arranged at intervals along the axial direction of the main rotating shaft 3; the energy storage assembly 8 includes a connecting plate 14, an energy storage spring 15 sleeved on the connecting plate 14, and two spring pressing plates 16 (only the spring pressing plate 16 near the grounding rotating shaft 4 is shown in the figure) sleeved on the connecting plate 14 and located at two axial ends of the energy storage spring 15. The connecting plate 14 forms a connecting framework in the energy storage assembly 8, and the plate surface of the connecting plate 14 is perpendicular to the axial direction of the main rotating shaft 3.
As shown in fig. 1 to 4, the connecting plate 14 includes a main plate body 17, one end of the main plate body 17 in the length direction is provided with an arc-shaped snap ring 19, the energy storage spring 15 is sleeved on the main plate body 17, a ring groove 21 is formed in the main rotating shaft 3 corresponding to the arc-shaped snap ring 19, the arc-shaped snap ring 19 is sleeved in the ring groove 21 of the main rotating shaft 3, so that not only can the arc-shaped snap ring 19 be rotatably matched with the main rotating shaft 3, but also the groove wall of the ring groove 21 can limit the arc-shaped snap ring 19 in the axial direction of the main rotating shaft 3, thereby preventing the connecting plate 14 from shifting in the axial direction; in order to reduce the friction force of the arc-shaped clamping ring 19 when rotating relative to the main rotating shaft 3, three supporting protrusions 20 are arranged on the inner side surface of the arc-shaped clamping ring 19 along the circumferential direction of the arc-shaped clamping ring, and the three supporting protrusions 20 are uniformly distributed along the circumferential direction of the arc-shaped clamping ring 19, so that only the supporting protrusions 20 on the inner side of the arc-shaped clamping ring 19 are in contact with the groove bottom of the ring groove 21 on the main rotating shaft 3, and the friction force between the arc-shaped clamping ring 19 and the main rotating shaft 3; the connecting plate 14 constitutes a connecting skeleton, and the main plate body 17 constitutes a skeleton member in the connecting skeleton.
As shown in fig. 1 to 4, a groove is formed in the end of the main plate body 17 of the connecting plate 14 facing the grounding rotating shaft 4 from the end thereof along the length direction, the groove forms a connecting long groove 18 on the connecting plate 14, and the connecting long groove 18 penetrates through the main plate body 17 along the thickness direction of the main plate body 17; a crank arm structure 7 is arranged on the grounding rotating shaft 4 corresponding to the energy storage assembly 8, the crank arm structure 7 comprises two arm plates 12 which are arranged at intervals along the axial direction of the grounding rotating shaft 4, the two arm plates 12 are fixed with the grounding rotating shaft 4, a connecting pin 13 is fixed between the two arm plates 12, and the axis of the connecting pin 13 extends along the axial direction of the grounding rotating shaft 4; the grounding rotating shaft 4 is connected with the connecting plate 14 by the connecting pin 13 penetrating into the connecting long groove 18 of the connecting plate.
In the process of rotating the grounding rotating shaft 4, because the connecting pin 13 extends into the connecting long groove 18 of the connecting plate 14, the connecting pin 13 can also push the connecting plate 14 to rotate around the main rotating shaft 3 in the process of rotating along with the grounding rotating shaft 4, and because the connecting pin 13 is arranged on the crank arm structure 7, the connecting pin 13 can move in a guiding manner relative to the connecting plate 14 in the connecting long groove 18 in the process of rotating along with the grounding rotating shaft 4 and gradually compress the energy storage spring 15; the connecting plate 14 and the main rotating shaft 3 form a rotating pair, and the rotating axis of the rotating pair is collinear with the axis of the main rotating shaft 3.
As shown in fig. 2 and 5, the spring pressing plate 16 is a circular structure, a through hole 22 for the main board 17 to pass through is opened in the middle, the spring pressing plate 16 is disposed at two ends of the energy storage spring 15, the spring pressing plate 16 close to the arc-shaped snap ring 19 is blocked by the arc-shaped snap ring 19 to form a blocking structure of the energy storage spring 15, and the spring pressing plate 16 close to one side of the grounding rotating shaft 4 is pushed by the connecting pin 13 to compress the energy storage spring 15; two spring pressing plates 16 are arranged, so that two ends of the energy storage spring 15 can be completely covered in the compression process, and the energy storage spring 15 is ensured not to be inclined and relatively stable in the process of compressing the energy storage spring 15.
As shown in fig. 1, a stopping disc is fixed at one end of a grounding rotating shaft 4, the stopping disc is close to a circuit breaker frame 1 at the corresponding end of the grounding rotating shaft 4, a stopping shaft 9 is arranged on the circuit breaker frame 1, and the stopping disc is provided with an opening stopping protrusion 10 and a closing stopping protrusion 11 which can be respectively stopped by the stopping shaft 9 in the rotating process of the grounding rotating shaft 4, wherein in the closing process of a grounding switch module, when the closing stopping protrusion 11 is stopped by the stopping shaft 9, successful closing of the grounding switch module is represented, and when the opening stopping protrusion 10 is stopped by the stopping shaft 9, successful opening of the grounding switch module is represented.
When the circuit breaker is used, after a main fracture structure 2 is opened, a grounding switch module needs to be switched on, so that the circuit breaker is grounded, a maintainer rotates a grounding rotating shaft 4 to enable a grounding moving contact 5 to rotate against a grounding fixed contact 6, when an energy storage spring 15 reaches the maximum compression amount (at the moment, the axes of the main rotating shaft 3, the grounding rotating shaft 4 and a connecting pin 13 are coplanar) in the rotating process, a crank arm structure 7 and an energy storage assembly 8 move to a dead point position matched with the crank arm structure 8, then the maintainer continues to rotate the grounding rotating shaft 4, after the dead point position is passed, the energy storage spring 15 releases energy, the grounding rotating shaft 4 is pushed to continue to rotate through a spring pressing plate 16, the connecting pin 13 and the crank arm structure 7 until a blocking and switching-on protrusion 11 on a blocking plate on the grounding rotating shaft 4 is blocked with a blocking shaft 9, and at; when the grounding switch module is required to be opened, a maintainer reversely rotates the grounding rotating shaft 4 to enable the grounding moving contact 5 to rotate back to the grounding fixed contact 6, in the rotating process, when the grounding moving contact passes through a dead point position, the energy storage spring 15 reaches the maximum compression amount, then the energy storage spring 15 releases energy after passing through the dead point position to push the grounding rotating shaft 4 to continue rotating until the opening stopping protrusion 10 on the stopping disc on the grounding rotating shaft 4 is stopped with the stopping shaft 9, and at the moment, the opening of the grounding switch module is realized.
In the above embodiment, the long connecting groove is disposed on the connecting frame, the connecting pin is disposed on the crank arm structure, and the connecting pin compresses the energy storage spring during rotation of the grounding rotating shaft. In other embodiments, the connecting elongated slot may also be disposed on the connecting lever structure, the connecting pin is fixed to the connecting frame, and the connecting frame may also be driven to rotate in the process that the connecting lever structure rotates along with the grounding rotating shaft, in addition, an avoiding elongated slot into which the connecting lever structure extends needs to be disposed on the connecting frame, the avoiding elongated slot extends along the length direction of the connecting frame, and in the process that the connecting lever structure rotates along with the grounding rotating shaft, the top of the connecting lever structure can press the energy storage spring, thereby implementing energy storage of the energy storage assembly.
In the above embodiment, the connection frame is a connection plate, the energy storage spring is sleeved on the connection plate, the connection plate is close to the end of the main rotating shaft to form the arc-shaped snap ring, the arc-shaped snap ring is sleeved in the annular groove of the main rotating shaft, and the annular groove forms the limiting structure on the main rotating shaft. In other embodiments, the connecting frame may also be another structure, for example, two rod-shaped structures are provided, the two rod-shaped structures are fixedly connected together, and an arc-shaped snap ring structure is formed at one end of the connecting frame through the shape of the rod-shaped structures, the connecting elongated slot at the other end is formed by the space between the two rod-shaped structures, the energy storage spring is sleeved outside the connecting frame and can be used as well, or the connecting frame may also be a tubular structure, the arc-shaped snap ring structure is cut at one end of the tubular structure close to the main rotating shaft, the connecting elongated slot is formed at one end of the tubular structure close to the grounding rotating shaft, and the energy storage spring is inserted into the inner cavity of the tubular structure and; one end of the connecting plate, which is close to the main rotating shaft, can be a sleeve structure instead of the arc-shaped snap ring, and under the condition, the main rotating shaft does not need to be provided with a ring groove, and the sleeve structure can prevent the connecting plate from deflecting; the limiting structure can also be in other structural forms, for example, a plurality of limiting bulges are arranged on the main rotating shaft and are arranged on two sides of the arc-shaped snap ring, so that the limiting structure can limit and support the arc-shaped snap ring.
In the above embodiment, the grounding fixed contact and the main fracture structure are integrated together. In other embodiments, the fixed ground contact may also be separately fixed in the circuit breaker frame, for example, a dedicated fixing bracket is provided, and the fixed ground contact is fixed on the fixing bracket and may also be used.
In the above embodiment, there are two energy storage assemblies. In other embodiments, one, three, or more energy storage assemblies may be provided, and may be used, and when one energy storage assembly is provided, it is preferably arranged corresponding to the middle position of the grounding rotating shaft, and when other number of energy storage assemblies are provided, it is also preferably arranged uniformly corresponding to the grounding rotating shaft.
In the above embodiment, the crank arm structure includes two spaced apart arm plates, and the connecting pin is fixed between the two arm plates. In other embodiments, the crank arm structure may have only one arm plate, and the connecting pin may have one end fixed to the arm plate and the other end cantilevered.
Claims (10)
1. A circuit breaker with a grounding switch, comprising:
a circuit breaker frame;
a main break structure assembled on the breaker frame;
the main rotating shaft is assembled on the breaker frame and is in transmission connection with a driving contact in the main fracture structure;
the grounding switch module is arranged on the breaker frame and comprises a grounding fixed contact, a grounding moving contact and a grounding rotating shaft, and the grounding rotating shaft is in transmission connection with the grounding moving contact and drives the grounding moving contact to perform opening and closing actions;
it is characterized in that the utility model is characterized in that,
the grounding rotating shaft and the main rotating shaft are arranged in parallel;
the energy storage assembly is arranged between the grounding rotating shaft and the main rotating shaft;
a crank arm structure is arranged on the grounding rotating shaft, the energy storage assembly comprises a connecting framework, one end of the connecting framework is matched with the main rotating shaft, the other end of the connecting framework is matched with the crank arm structure, the connecting framework and the main rotating shaft form a rotating pair, the rotating axis of the rotating pair is coaxial with the main rotating shaft, one of the crank arm structure and the connecting framework is provided with a connecting elongated slot, the other is fixedly provided with a connecting pin, the connecting pin is arranged in the connecting elongated slot in a penetrating manner, and the connecting framework is driven to rotate when the crank arm structure rotates along with the grounding;
the energy storage assembly further comprises an energy storage spring, the energy storage spring is installed on the connecting framework, when the connecting lever structure rotates towards the main rotating shaft, the energy storage spring is compressed to store energy, and when the connecting lever structure rotates over a dead point position, the energy storage spring releases energy and pushes the connecting lever structure to rotate.
2. The circuit breaker with a ground switch as claimed in claim 1, wherein the connection frame comprises a frame member, the energy storage spring is mounted on the frame member, one end of the frame member is provided with a rotation fitting structure for forming a rotation pair with the main rotation shaft, the connection elongated slot is formed on the frame member, and the connection pin is mounted on the crank arm structure.
3. The circuit breaker with grounding switch as claimed in claim 2, wherein said crank arm structure comprises two axially spaced arms fixed to the grounding shaft, the connecting pin is connected between the two arms, and the connecting pin presses the energy storage spring to compress the energy storage spring when the crank arm structure rotates the connecting frame.
4. The circuit breaker with a grounding switch as claimed in claim 1, 2 or 3, wherein the energy storage spring is sleeved on the connection frame.
5. The circuit breaker with a grounding switch as claimed in claim 1, wherein the connection frame comprises a rib and an arc-shaped snap ring at one end of the rib, and the connection frame is engaged with the main shaft through the arc-shaped snap ring to form a rotating pair.
6. The circuit breaker with grounding switch as claimed in claim 5, wherein the connecting frame is a plate structure, the plate surface is perpendicular to the main rotating shaft, and the main rotating shaft is provided with a limiting structure for limiting the axial position of the arc-shaped snap ring.
7. The circuit breaker with ground switch of claim 6, wherein the limiting structure is a ring groove formed on the main shaft, and the groove wall of the ring groove axially limits the arc-shaped snap ring.
8. The circuit breaker with an earthing switch according to claim 5, 6 or 7, wherein a plurality of supporting protrusions are provided on an inner side surface of the arc-shaped snap ring at intervals along a circumferential direction thereof, and the arc-shaped snap ring is in contact with the main rotating shaft through the supporting protrusions.
9. The circuit breaker with earthing switch according to claim 1, 2, 3, 5, 6 or 7, wherein the energy storage members are provided in two or more numbers and are spaced apart from each other in the axial direction of the earthing rotary shaft.
10. The circuit breaker with earthing switch according to claim 1, 2, 3, 5, 6 or 7, wherein there are two spring pressing plates in the energy storage assembly, and the two spring pressing plates are installed on the connection frame and located at two ends of the energy storage spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481048.3U CN210516512U (en) | 2019-09-06 | 2019-09-06 | Circuit breaker with earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481048.3U CN210516512U (en) | 2019-09-06 | 2019-09-06 | Circuit breaker with earthing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210516512U true CN210516512U (en) | 2020-05-12 |
Family
ID=70568594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921481048.3U Active CN210516512U (en) | 2019-09-06 | 2019-09-06 | Circuit breaker with earthing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210516512U (en) |
-
2019
- 2019-09-06 CN CN201921481048.3U patent/CN210516512U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105680260A (en) | Winding module | |
| CN106115383A (en) | A kind of magnetic-type spiral module | |
| EP3340263A1 (en) | Locking/unlocking structure of switch device | |
| CN210516512U (en) | Circuit breaker with earthing switch | |
| CN112466689A (en) | Circuit breaker with grounding switch | |
| CN104701039B (en) | A kind of spring operating mechanism | |
| CN209785864U (en) | Circuit breaker operating mechanism | |
| CN111105940B (en) | Electric spring mechanism and grounding switch | |
| KR101678002B1 (en) | Gas Insulated Load Break Switch | |
| CN217008954U (en) | Double-shaft three-station load switch operating mechanism based on shared energy storage spring | |
| CN214152742U (en) | Locking device for grounding operation shaft | |
| CN215342357U (en) | High-voltage interlocking device for electric high-voltage switch cabinet | |
| CN111223721B (en) | Circuit breaker and energy storage maintaining closing tripping system for spring operating mechanism thereof | |
| CN213184164U (en) | Spring operating mechanism | |
| CN210925923U (en) | Circuit breaker and false closing prevention device of spring operating mechanism thereof | |
| CN210403633U (en) | Emergency brake-separating mechanism for high-voltage cabinet circuit breaker | |
| CN209981040U (en) | Operating mechanism of load switch | |
| CN102110535A (en) | Electric spring operating mechanism | |
| CN110189951B (en) | Control rod | |
| JP5995690B2 (en) | Manual opening device for electromagnetic operating mechanism | |
| CN217061972U (en) | Aerify cabinet circuit breaker mechanism | |
| CN211879278U (en) | Electronic product with extensible encoder | |
| CN217114146U (en) | Assembled anti-collision air switch for relay protection screen | |
| CN114597567B (en) | Battery mounting structure and electronic product | |
| CN210443483U (en) | Transmission mechanism of grounding switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |