CN218447617U - Safety interlocking mechanism - Google Patents
Safety interlocking mechanism Download PDFInfo
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- CN218447617U CN218447617U CN202222284153.6U CN202222284153U CN218447617U CN 218447617 U CN218447617 U CN 218447617U CN 202222284153 U CN202222284153 U CN 202222284153U CN 218447617 U CN218447617 U CN 218447617U
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Abstract
The utility model relates to a circuit breaker technical field, concretely relates to safety interlocking mechanism. The method comprises the following steps: the valve is assembled in a vertical sliding mode and can open and close the driving end of the driving shaft of the isolating switch in a sliding mode, and a first driving surface and a second driving surface are formed on the valve; the shielding piece is assembled in a horizontal sliding mode, one end of the shielding piece is matched with the first driving surface, and the other end of the shielding piece is close to a closing button of the circuit breaker; the limiting piece is assembled in a horizontal sliding mode, one end of the limiting piece is matched with the second driving surface, and the other end of the limiting piece is close to a main shaft of the circuit breaker; when the valve slides to expose the driving shaft of the isolating switch, the valve drives the shielding piece and the limiting piece to simultaneously slide horizontally, so that the shielding piece blocks a closing button of the circuit breaker, and meanwhile, the limiting piece limits the rotation of a main shaft of the circuit breaker. The technical problem that equipment is damaged due to the fact that operation sequence errors of a disconnecting switch and a circuit breaker in the prior art are solved.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to safety interlocking mechanism.
Background
In the related art, a vacuum circuit breaker is often used, and the vacuum circuit breaker refers to a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and closing, carrying, and opening/closing a current under an abnormal circuit condition within a predetermined time. The isolating switch is mainly used for reliably isolating a part needing power failure from a live part in the high-voltage distribution device so as to ensure the safety of maintenance work.
In the actual operation of the vacuum circuit breaker, the operation on the circuit breaker and the operation on the disconnecting switch have a certain sequence, and if the vacuum circuit breaker is operated to be opened, the circuit breaker is required to be opened firstly, and then the disconnecting switch is operated to be opened; if the vacuum circuit breaker is operated to switch on, the disconnecting switch needs to be operated to switch on first, and then the circuit breaker is operated to switch on. If reverse sequence operation occurs, for example, when the disconnecting switch is not switched on, the breaker is switched on by misoperation, electric arcs are easily generated at the position of the disconnecting switch, equipment is easily damaged, and great potential safety hazards are also brought.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the operation sequence mistake of isolator and circuit breaker can lead to equipment to damage among the prior art, the utility model provides a safe interlocking gear to guarantee that isolator and circuit breaker operate according to the exact order, guarantee equipment safety, solved above-mentioned technical problem. The technical scheme of the utility model as follows:
a safety interlock mechanism for a vacuum circuit breaker, the safety interlock mechanism comprising:
the valve is assembled in a vertical sliding mode, the valve can open and close the driving end of the driving shaft of the isolating switch in a sliding mode, and a first driving surface and a second driving surface are formed on the valve;
the shielding piece is assembled in a horizontal sliding mode, one end of the shielding piece is matched with the first driving surface, and the other end of the shielding piece is close to a closing button of the circuit breaker;
the limiting piece is assembled in a horizontal sliding mode, one end of the limiting piece is matched with the second driving surface, and the other end of the limiting piece is close to a main shaft of the circuit breaker;
when the valve slides to expose the driving shaft of the isolating switch, the valve drives the shielding piece and the limiting piece to simultaneously slide horizontally, so that the shielding piece blocks a closing button of the circuit breaker, and meanwhile, the limiting piece limits the rotation of a main shaft of the circuit breaker.
The application discloses safe interlocking mechanism, through setting up the drive shaft of valve vertical slip with switching isolator, the slip of valve drives shielding piece and locating part horizontal slip simultaneously. When the valve is positioned at the middle position, the valve blocks a driving shaft of the isolating switch, the isolating switch cannot be operated, meanwhile, the valve does not drive a shielding piece and a limiting piece, the shielding piece does not block a closing button of the circuit breaker, the limiting piece does not limit a main shaft of the circuit breaker, and the closing operation of the circuit breaker can be performed at the moment; when the valve was by the vertical slip of meso position, the valve can expose isolator's drive shaft, and valve drive shielding member and locating part horizontal slip simultaneously shelter from the main shaft rotation of the combined floodgate button of circuit breaker and spacing circuit breaker, can't carry out the combined floodgate operation of circuit breaker this moment.
Namely, when the vacuum circuit breaker is switched on and off, the method specifically comprises the following steps: when the circuit breaker is switched on, the valve can be opened in a sliding mode firstly, the driving shaft of the isolating switch is switched on and driven, at the moment, the shielding piece plays a shielding role, the limiting piece plays a limiting role, and the circuit breaker cannot be switched on; when the isolating switch is switched on, the valve is slid to a middle position, the valve blocks the driving end of the driving shaft of the isolating switch, meanwhile, the shielding piece and the limiting piece are both relieved, and at the moment, a switching-on button can be pressed down to switch on the circuit breaker;
during the separating brake, can press the separating brake button earlier, then the slip valve leaves the meso position, can carry out isolator's separating brake operation, and the shielding part plays the effect of sheltering from this moment, and the locating part plays limiting displacement, and the unable combined floodgate of circuit breaker can play the effect that prevents the maloperation.
According to an embodiment of the utility model, the drive shaft of the isolating switch comprises a main drive shaft and a closing drive shaft which are matched in a transmission way, the closing drive shaft and the main drive shaft are arranged in parallel from top to bottom, and when the valve is positioned at a middle position, the valve blocks the drive end of the main drive shaft and the drive end of the closing drive shaft simultaneously; when the valve slides upwards or downwards, the valve blocks one driving end of the main driving shaft and the driving end of the closing driving shaft and exposes the other driving end.
According to the utility model discloses an embodiment, the combined floodgate drive shaft is located the top of main drive axle, combined floodgate drive shaft with the main drive axle passes through the gear assembly transmission cooperation.
According to the utility model discloses an embodiment, first drive face with the second drive face is located same one side of valve.
According to the utility model discloses an embodiment still includes first elastic component under the effect of first elastic component, the one end of shielding part supports and leans on first drive face.
According to an embodiment of the present invention, the first driving surface is a concave double inclined surface, when the shutter is located at the middle position, the shielding member abuts against the junction of the double inclined surfaces of the first driving surface, and the switch-on button is exposed outside; when the valve slides upwards and downwards from the middle position, the first driving surface can push the shielding piece to block the closing button of the circuit breaker.
According to the utility model discloses an embodiment still includes the second elastic component under the effect of second elastic component, the one end of locating part is supported and is leaned on the second drive face.
According to an embodiment of the present invention, the second driving surface is an inward concave double inclined surface, and when the shutter is located at the middle position, the limiting member abuts against a junction of the double inclined surfaces of the second driving surface to limit the main shaft of the circuit breaker; when the valve slides upwards and downwards from the middle position, the second driving surface can push the limiting part to limit the main shaft of the circuit breaker.
According to the utility model discloses an embodiment, be connected with the connecting lever on the main shaft of circuit breaker, but locating part horizontal slip extremely connecting lever department blocks the connecting lever.
Based on the technical scheme, the utility model discloses the technological effect that can realize does:
1. the utility model discloses a safe interlocking mechanism, through setting up the drive shaft of the vertical slip of valve with switching isolator, the slip of valve drives shielding part and locating part horizontal slip simultaneously. When the valve is positioned at the middle position, the valve blocks a driving shaft of the isolating switch, the isolating switch cannot be operated, meanwhile, the valve does not drive a shielding piece and a limiting piece, the shielding piece does not block a closing button of the circuit breaker, the limiting piece does not have a main shaft of the limiting circuit breaker, and the closing operation of the circuit breaker can be carried out at the moment; when the valve was by the vertical slip of meso position, the valve can expose isolator's drive shaft, and valve drive shielding member and locating part horizontal slip simultaneously shelter from the main shaft rotation of the combined floodgate button of circuit breaker and spacing circuit breaker, can't carry out the combined floodgate operation of circuit breaker this moment. Namely, when the vacuum circuit breaker is switched on and off, the method specifically comprises the following steps: when the circuit breaker is switched on, the valve can be opened in a sliding mode firstly, the driving shaft of the isolating switch is switched on and driven, at the moment, the shielding piece plays a shielding role, the limiting piece plays a limiting role, and the circuit breaker cannot be switched on; when the isolating switch is switched on, the valve is slid to a middle position, the valve blocks the driving end of the driving shaft of the isolating switch, meanwhile, the shielding piece and the limiting piece are both relieved, and at the moment, a switching-on button can be pressed down to switch on the circuit breaker; when the breaker is opened, the opening button can be pressed down, then the sliding valve leaves the middle position, the opening operation of the isolating switch can be carried out, at the moment, the shielding piece plays a shielding role, the limiting piece plays a limiting role, the breaker cannot be closed, and the effect of preventing misoperation can be achieved;
2. the safety interlocking mechanism of the utility model has the advantages that the valve drives the shielding part and the limiting part simultaneously to play a role in double protection, so that the breaker can not be switched on when the isolating switch is operated, and the safety performance is improved;
3. the safety interlocking mechanism of the utility model has the advantages that the driving shaft of the isolating switch is of a double-shaft structure, the operation closing driving shaft can be arranged to close the isolating switch, the main driving shaft is directly operated to ground the isolating switch, the distinguishing function is realized, and the misoperation is prevented; when the valve is in the middle position, the driving ends of the two shafts can be blocked simultaneously, the valve can slide upwards or downwards to expose the driving end of one shaft and block the driving end of the other shaft, so that only one shaft can be operated during operation, and misoperation is prevented;
4. the safety interlocking mechanism of the utility model is provided with the first driving surface and the second driving surface which are concave double inclined surfaces, so that the shielding piece and the limiting piece can be pushed to synchronously horizontally slide no matter the valve slides upwards or downwards from the middle position, and a corresponding effect is achieved; the first elastic piece and the second elastic piece are arranged, so that the shielding piece and the limiting piece can be always connected with the corresponding driving surfaces, and the positions of the shielding piece and the limiting piece are controlled;
5. the safety interlocking mechanism of the utility model is characterized in that the main shaft of the breaker is connected with the connecting lever, and the limiting part can block the connecting lever to limit the main shaft of the breaker, so that the main shaft of the breaker can not rotate; otherwise, after the circuit breaker closed the floodgate and operate, this connecting lever can support the locating part, and then spacing valve makes the valve unable to open, and under the circuit breaker state of closing a floodgate promptly, isolator can't operate, need carry out the separating brake to the circuit breaker earlier, just can further slide the valve, operation isolator.
Drawings
Fig. 1 is a schematic structural view of the safety interlocking mechanism of the present invention disposed on a vacuum circuit breaker;
fig. 2 is a schematic structural view of the safety interlocking mechanism of the present invention;
FIG. 3 is a schematic structural view of the shutter cooperating with the shielding member and the limiting member;
FIG. 4 is a schematic view of the mounting plate;
FIG. 5 is a schematic view of the structure of the driving shaft of the isolating switch;
in the figure: 1-a valve; 11-a first driving surface; 12-a second drive face; 13-vertical long hole; 14-a handle; 2-a shield; 21-a first transverse slot; 3-a limiting part; 31-a second transverse slot; 4-a closing button; 5-a main shaft; 51-crank arm; 6, mounting a plate; 61-a through hole; 7-a drive shaft; 71-a main drive shaft; 711-first drive end; 72-a closing drive shaft; 721-a second drive end; 8-a gear assembly; 81-a first gear; 82-a second gear; 9-a reset member; 10-a shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the directional terms such as "front, back, upper, lower, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be construed as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1 to 5, the present embodiment provides a safety interlock mechanism for a vacuum circuit breaker, which functions to prevent a malfunction.
The safety interlocking mechanism comprises a valve 1, a shielding piece 2 and a limiting piece 3, wherein the valve 1 is assembled in a vertical sliding mode, and the valve 1 is used for opening and closing a driving end of a driving shaft 7 of the isolating switch; the shielding piece 2 and the limiting piece 3 are assembled in a horizontal sliding mode, the shielding piece 2 is used for shielding a closing button 4 of the circuit breaker, and the limiting piece 3 is used for limiting a main shaft 5 of the circuit breaker; a first driving surface 11 and a second driving surface 12 are formed on the valve 1, the first driving surface 11 is used for driving the shielding piece 2, the second driving surface 12 is used for driving the limiting piece 3, when the valve 1 vertically slides to open the driving end of the driving shaft 7, the shielding piece 2 and the limiting piece 3 can be driven to synchronously and horizontally slide, the shielding piece 2 blocks the closing button 4 of the breaker, and meanwhile, the limiting piece 3 limits the main shaft 5 of the breaker to prevent the breaker from being closed in a rotating mode.
As a preferred technical solution of this embodiment, the driving shaft 7 of the isolating switch is a dual-shaft structure, and specifically includes a main driving shaft 71 and a closing driving shaft 72, the main driving shaft 71 and the closing driving shaft 72 are arranged in parallel up and down, the main driving shaft 71 has a first driving end 711, and the closing driving shaft 72 has a second driving end 721; correspondingly, the mounting plate 6 is provided with two through holes 61 up and down, and the two through holes 61 are respectively provided corresponding to the first driving end 711 and the second driving end 721.
As a preferred technical solution of this embodiment, the main driving shaft 71 is located below the closing driving shaft 72, and the main driving shaft 71 and the closing driving shaft 72 are in transmission fit. Specifically, the main driving shaft 71 and the closing driving shaft 72 are in transmission fit through the gear assembly 8, a first gear 81 is provided on the main driving shaft 71, a second gear 82 is provided on the closing driving shaft 72, and the first gear 81 and the second gear 82 are meshed, so that as long as one of the main driving shaft 71 and the closing driving shaft 72 is driven, the two shafts rotate together. Through the arrangement, the disconnecting switch can be controlled to be switched on and grounded through operating different shafts, and if the disconnecting switch needs to be switched on, the switching-on driving shaft 72 can be operated through a tool; if the isolating switch needs to be operated to be grounded, the main driving shaft 71 can be operated through a tool, and the misoperation rate can be effectively reduced through the separated operation.
As a preferred technical solution of this embodiment, in an initial state, the shutter 1 is in a middle position, that is, the first limit screw is located in the vertical middle of the vertical long hole 13, and at this time, the shutter 1 can block two through holes 61 on the mounting plate 6 at the same time; when the valve 1 slides downwards under the action of external force, the valve 1 can shield the through hole 61 at the lower part, and the through hole 61 at the upper part is exposed outside, and at the moment, the closing driving shaft 72 can be operated to perform closing operation on the isolating switch; when the shutter 1 slides upward by an external force, the shutter 1 blocks the upper through hole 61 and the lower through hole 61 is exposed, and the main driving shaft 71 is operated to perform a grounding operation on the disconnecting switch.
As a preferred technical solution of this embodiment, in order to realize that the shutter 1 is located at the middle position in the initial state, a resetting member 9 is provided, one end of the resetting member 9 is fixedly assembled, and the other end is connected to the shutter 1, so as to provide a resetting acting force for the shutter 1. The return member 9 may be selected from, but not limited to, a spring.
As a preferred technical solution of this embodiment, there are two vertical long holes 13 on the shutter 1, and the two vertical long holes 13 are arranged in parallel and at an interval.
As a preferred technical solution of this embodiment, a handle 14 is further fixed on the outer surface of the shutter 1, so as to facilitate grasping operation.
As a preferred technical solution of this embodiment, in order to ensure that the shutter 1 can push the shielding member 2 and the limiting member 3 to horizontally slide when sliding upwards and downwards from the neutral position, the first driving surface 11 and the second driving surface 12 on the shutter 1 are provided as concave double inclined surfaces. When the valve 1 is in the middle position, the junction of the double inclined surfaces of the first driving surface 11 contacts with the shielding member 2, the junction of the double inclined surfaces of the second driving surface 12 contacts with the limiting member 3, at this time, the shielding member 2 does not shield the closing button 4, and the limiting member 3 does not limit the spindle 5. Preferably, the first driving surface 11 and the second driving surface 12 are provided on the same side of the shutter 1.
The shutter 2 is fitted horizontally sliding on the mounting plate 6, one end of the shutter 2 abutting against the first driving surface 11 of the shutter 1, and the other end of the shutter 2 extending close to the closing button 4. When the shutter 1 slides up and down from the neutral position, the first driving surface 11 can push the shielding member 2 to move towards the closing button 2 to shield the closing button 4.
As a preferable technical solution of the present embodiment, the shielding member 2 is formed with a first transverse long hole 21, and the mounting plate 6 is fixed with a second limit screw, which extends into the first transverse long hole 21. Preferably, the first transverse long holes 21 may be provided in two.
As a preferable mode of the present embodiment, one end of the shutter 2 abutting against the first driving surface 11 is provided in a bullet shape, and the contact area between the shutter 2 and the first driving surface 11 can be reduced by providing the shape, thereby reducing the frictional force.
As a preferred aspect of the present embodiment, a first elastic member is further provided, which acts on the shutter 2 to hold the shutter 2 against the first driving surface 11. The first elastic member may be selected from, but not limited to, a spring.
The limiting member 3 is horizontally slidably assembled on the mounting plate 6, one end of the limiting member 3 abuts against the second driving surface 12 of the shutter 1, and the other end of the limiting member 3 extends to the main shaft 5 close to the circuit breaker. When the shutter 1 slides up and down from the neutral position, the second driving surface 12 can push the limiting member 3 to move towards the spindle 5 to limit the spindle 5.
As a preferable technical solution of the present embodiment, a second transverse long hole 31 is formed on the limiting member 3, and a third limiting screw is fixed on the mounting plate 6, and the third limiting screw extends into the second transverse long hole 31. Preferably, the second transverse long holes 31 may be provided in two.
As a preferable aspect of the present embodiment, one end of the stopper 3 abutting against the second driving surface 12 is provided in a bullet shape, and the contact area between the stopper 3 and the second driving surface 12 can be reduced by the shape, and the frictional force can be reduced.
As a preferable aspect of the present embodiment, a second elastic member is further provided, and the second elastic member acts on the stopper 3 to keep the stopper 3 abutting against the second driving surface 12. The second elastic member may be selected, but not limited to, a spring.
As a preferable embodiment of the present invention, a crank arm 51 is attached to a main shaft 5 of the circuit breaker, and after the stopper 3 slides horizontally, the crank arm 51 is stopped to stop the main shaft 5 from rotating and closing.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. A safety interlock mechanism for a vacuum circuit breaker, the safety interlock mechanism comprising:
the valve (1) is assembled in a vertical sliding mode, the valve (1) can open and close the driving end of a driving shaft (7) of the isolating switch in a sliding mode, and a first driving surface (11) and a second driving surface (12) are formed on the valve (1);
the shielding piece (2) is assembled in a horizontal sliding mode, one end of the shielding piece (2) is matched with the first driving surface (11), and the other end of the shielding piece (2) is close to a closing button (4) of the circuit breaker;
the limiting piece (3) is assembled in a horizontal sliding mode, one end of the limiting piece (3) is matched with the second driving surface (12), and the other end of the limiting piece (3) is close to the main shaft (5) of the circuit breaker;
when the valve (1) slides to expose the driving shaft (7) of the isolating switch, the valve (1) drives the shielding piece (2) and the limiting piece (3) to simultaneously slide horizontally, so that the shielding piece (2) blocks a closing button (4) of the circuit breaker, and meanwhile, the limiting piece (3) limits the rotation of a main shaft (5) of the circuit breaker.
2. The safety interlocking mechanism according to claim 1, wherein the driving shaft (7) of the isolating switch comprises a main driving shaft (71) and a closing driving shaft (72) which are in transmission fit, the closing driving shaft (72) and the main driving shaft (71) are arranged in parallel up and down, and when the shutter (1) is located at a middle position, the shutter (1) simultaneously blocks the driving end of the main driving shaft (71) and the driving end of the closing driving shaft (72); when the valve (1) slides upwards or downwards, the valve (1) blocks one driving end of the main driving shaft (71) and the driving end of the closing driving shaft (72) and exposes the other driving end.
3. A safety interlock mechanism according to claim 2, wherein the closing drive shaft (72) is located above the main drive shaft (71), the closing drive shaft (72) and the main drive shaft (71) being in driving engagement by means of a gear assembly (8).
4. A safety interlock according to any of claims 2-3, wherein the first drive surface (11) and the second drive surface (12) are located on the same side of the shutter (1).
5. A safety interlock mechanism according to claim 4, further comprising a first resilient member, under the action of which one end of the shutter (2) abuts against the first driving surface (11).
6. A safety interlock mechanism according to claim 5, wherein the first driving surface (11) is a concave double-inclined surface, when the shutter (1) is in the neutral position, the shutter (2) abuts against the intersection of the double-inclined surfaces of the first driving surface (11), and the closing button (4) is exposed; when the valve (1) slides upwards and downwards from the middle position, the first driving surface (11) can push the shielding piece (2) to shield a closing button (4) of the circuit breaker.
7. A safety interlock according to claim 4, further comprising a second resilient member, under the action of which one end of the stop member (3) abuts against the second drive surface (12).
8. A safety interlock mechanism according to claim 7, wherein the second driving surface (12) is a concave double inclined surface, and when the shutter (1) is in the neutral position, the limiting member (3) abuts against the boundary of the double inclined surface of the second driving surface (12) to limit the main shaft (5) of the circuit breaker; when the valve (1) slides upwards and downwards from the middle position, the second driving surface (12) can push the limiting piece (3) to limit the breaker spindle (5).
9. A safety interlock mechanism according to any of claims 1-3 and 5-8, wherein a crank arm (51) is connected to the main shaft (5) of the circuit breaker, and the stop member (3) is horizontally slidable to the position where the crank arm (51) blocks the crank arm (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222284153.6U CN218447617U (en) | 2022-08-26 | 2022-08-26 | Safety interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222284153.6U CN218447617U (en) | 2022-08-26 | 2022-08-26 | Safety interlocking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218447617U true CN218447617U (en) | 2023-02-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222284153.6U Active CN218447617U (en) | 2022-08-26 | 2022-08-26 | Safety interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218447617U (en) |
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2022
- 2022-08-26 CN CN202222284153.6U patent/CN218447617U/en active Active
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