CN219202978U - Spring operated isolation grounding switch mechanism - Google Patents
Spring operated isolation grounding switch mechanism Download PDFInfo
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- CN219202978U CN219202978U CN202320168641.2U CN202320168641U CN219202978U CN 219202978 U CN219202978 U CN 219202978U CN 202320168641 U CN202320168641 U CN 202320168641U CN 219202978 U CN219202978 U CN 219202978U
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Abstract
The utility model discloses a spring-operated isolation grounding switch mechanism, which relates to the technical field of isolation grounding switch mechanisms and comprises the following components: the frame is of a box-shaped structure, the left side of the top of the frame is rotationally connected with an isolating switch operation shaft, a connecting lug in the middle of the isolating switch operation shaft is connected with one end of an operation spring, the isolating switch operation shaft is movably connected with one end of an isolating switch pull rod through a connecting lug in the front side, the right side of the top of the frame is rotationally connected with a switch shaft, and the middle of the switch shaft is fixedly connected with a rotary aircraft head; the spring-operated isolation grounding switch mechanism realizes that the isolation and the opening of the grounding switch are simultaneously operated by one operating spring, after the operating spring passes through a dead point, the energy storage quick release mechanism completes the mechanism opening and closing operation, the opening and closing process is completed by the operating spring, the misoperation is avoided, the moment of opening the grounding switch is reduced, and the opening and closing operation can be guaranteed to be in place.
Description
Technical Field
The utility model relates to the technical field of isolation grounding switch mechanisms, in particular to a spring-operated isolation grounding switch mechanism.
Background
The prior SF6 medium voltage circuit breaker ring main unit mostly adopts the configuration of a vacuum circuit breaker and a three-station switch, and the switching-on and switching-off of rated load and fault short-circuit current of a main circuit are all responsible for the circuit breaker. The three-position switch only plays a role of isolation and grounding, so that the isolation switch is not configured with spring operation in the original operating mechanism design, and the spring operation is only configured for closing the grounding switch because of the need of closing short-circuit current.
The existing three-station switch isolating switch adopts non-spring operation, and if the metal plate and the mechanism of the panel of the switch cabinet are improperly matched, or the misoperation of operators easily causes that the closing and opening of the isolating switch are not in place. Meanwhile, when the grounding switch is opened, the grounding spring needs to be compressed and the pressure of the contact is overcome, so that the opening moment reaches about 100Nm, and the operation difficulty is increased.
Disclosure of Invention
The utility model aims to overcome the prior art, provides a spring-operated isolation grounding switch mechanism, realizes that the isolation and the opening of a grounding switch are simultaneously operated by one operation spring, and after the operation spring passes through a dead point, the energy storage quick release mechanism completes the opening and closing operation of the mechanism, so that the misoperation is avoided when the opening and closing process is completed by the operation spring, simultaneously, the moment of opening the grounding switch is reduced, the opening and closing operation is ensured to be in place, and the problems in the background art can be effectively solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a spring operated isolation grounding switch mechanism comprising:
the frame is of a box-shaped structure, the left side of the top of the frame is rotationally connected with an isolating switch operation shaft, a connecting lug in the middle of the isolating switch operation shaft is connected with one end of an operation spring, the isolating switch operation shaft is movably connected with one end of an isolating switch pull rod through a connecting lug in the front side, the right side of the top of the frame is rotationally connected with the switch shaft, the middle of the switch shaft is fixedly connected with a rotary aircraft head, the top of the rotary aircraft head is movably connected with the other end of the isolating switch pull rod, the lower side of the middle of the frame is rotationally connected with a grounding switch operation shaft, the connecting lug in the middle of the grounding switch operation shaft is connected with the other end of the operation spring, the grounding switch operation shaft is also movably connected with one end of a grounding switch pull rod through a connecting lug in the front side, and the other end of the grounding switch pull rod is movably connected with the bottom of the rotary aircraft head;
the opening and closing brake limiting assembly is arranged on the left side in the frame;
the indicating interlocking component is arranged at the bottom of the front side of the frame, and the right end of the indicating interlocking component is movably connected with a connecting column at the front side of the bottom of the rotary aircraft head.
The front ends of the isolating switch operating shaft and the grounding switch operating shaft are respectively provided with a jack, the operating handle is inserted into the jacks of the isolating switch operating shaft and the grounding switch operating shaft and then is clamped with the isolating switch operating shaft and the grounding switch operating shaft, and the isolating switch operating shaft or the grounding switch operating shaft can be driven to rotate by rotating the operating handle.
The indicating interlocking assembly can intuitively indicate each position of the switch, and effectively ensure the interlocking between the three-position switches, and plug the jack at the front side of the operating shaft of the grounding switch when the isolating switch is closed, so that the jack at the front side of the operating shaft of the grounding switch cannot be inserted into the operating handle, and plug the jack at the front side of the operating shaft of the isolating switch when the grounding switch is closed, so that the jack at the front side of the operating shaft of the isolating switch cannot be inserted into the operating handle.
Further, the switch limit assembly comprises an isolation switch-on stop block, an isolation switch-off limiter, a switch-off limiter connecting rod and a limit rotating block, wherein the rear side of the isolation switch operating shaft is fixedly connected with one end of the limit rotating block, the left side in the frame is connected with the isolation switch-off limiter through the switch-off limiter connecting rod, the isolation switch-off limiter is positioned on the left side of the limit rotating block, the left side rear wall in the frame is fixedly connected with the isolation switch-on stop block, and the isolation switch-on stop block is positioned on the right side of the limit rotating block.
The spacing rotating block rotates along with the disconnecting switch operating shaft, after the disconnecting switch operating shaft rotates clockwise to realize switching on, the spacing rotating block is spacing by the spacing switching-on blocking block on the right side of the spacing rotating block, after the disconnecting switch operating shaft rotates anticlockwise to realize disconnecting, the spacing rotating block is spacing by the spacing disconnecting switch limiter on the disconnecting switch limiter connecting rod, and the limitation of the rotation range of the disconnecting switch operating shaft is completed.
Further, the switch limiting assembly further comprises a buffer gasket, and one side, close to the limiting rotating block, of the isolation switch blocking block is provided with the buffer gasket. The isolation closing blocking block guarantees the rotating angle of the operation shaft of the isolating switch so as to guarantee the closing position, and meanwhile, the buffer gasket plays a role of buffering damping, so that the service life of the mechanism is guaranteed.
Further, instruct interlocking subassembly includes and instructs interlocking board, right transverse groove, traveller, left transverse groove and spacing post, the bottom front side spliced pole of rotatory aircraft head passes the arc of frame front side and leads to the groove and swing joint indicates the right-hand member of interlocking board, instruct the interlocking board to be located between isolator operating shaft and the earthing switch operating shaft, left transverse groove has been seted up to the front side left end of instructing the interlocking board, right transverse groove has been seted up to the front side right-hand member of instructing the interlocking board, the front side of frame is provided with the traveller with right transverse groove sliding connection, and the front side of frame still is provided with the spacing post of crossing left transverse groove.
Furthermore, the indication interlocking assembly further comprises a semicircular groove, and the semicircular groove is respectively formed in the bottom of the front end of the disconnecting switch operation shaft and the top of the front end of the grounding switch operation shaft.
When the isolating switch is switched on after the isolating switch operating shaft rotates clockwise, the rotating aircraft belt drives the right end of the indicating interlocking plate to tilt upwards, a semicircular groove on the isolating switch operating shaft faces upwards, the lower side of the indicating interlocking plate is clamped into a semicircular groove on the upper side of the grounding switch operating shaft, and at the moment, the operating handle cannot be inserted into an inserting hole on the front side of the grounding switch operating shaft, and the grounding switch operating shaft cannot be operated to switch on;
when the grounding switch operation shaft rotates clockwise to finish the closing of the grounding switch, the rotating aircraft belt drives the right end of the indicating interlocking plate to tilt upwards, a semicircular groove on the grounding switch operation shaft faces downwards at the moment, the upper side of the indicating interlocking plate is clamped into the semicircular groove on the lower side of the isolating switch operation shaft, and an operation handle cannot be inserted into the isolating switch operation shaft at the moment and cannot operate the isolating switch operation shaft to close;
further, the indicating interlocking assembly further comprises a baffle ring, the front end of the limiting column is fixedly sleeved with the baffle ring, and the baffle ring can prevent the indicating interlocking plate from being separated from the limiting column.
Compared with the prior art, the utility model has the beneficial effects that: the spring-operated isolation grounding switch mechanism has the following advantages:
1. the brake separating mechanism has the advantages that the brake separating operation of the isolating switch and the brake separating operation of the grounding switch are realized, the brake separating operation of the mechanism is completed by the energy storage quick release mechanism after the operation spring passes through the dead point, the brake separating operation is completed by the operation spring, the misoperation is avoided, the brake separating moment of the grounding switch is reduced, and the brake separating operation can be guaranteed to be in place.
2. The three-station switch operating mechanism realizes the spring combination and separation of the isolating switch and the grounding switch by using one spring through reasonable layout, simplifies the transmission chain of the whole operating mechanism, reduces the number of parts, is more reliable and reduces the cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic diagram of the internal structure of the present utility model.
In the figure: the device comprises a left support plate 1, a rear support plate 2, a right support plate 3, a disconnecting switch operating shaft 4, an operating spring 5, a disconnecting switch pull rod 6, a rotary aircraft head 7, a switch shaft 8, a disconnecting switch stop block 9, a buffer gasket 10, a disconnecting switch limiter 11, a front support plate 12, an indicating interlocking plate 13, a disconnecting switch limiter connecting rod 14, a grounding switch operating shaft 15, a grounding switch pull rod 16, a right transverse groove 17, a sliding column 18, a left transverse groove 19, a limiting column 20, a semicircular groove 21 and a limiting rotating block 22.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides the following technical solutions: a spring operated isolation grounding switch mechanism comprising:
the frame is of a box-shaped structure, the left side of the top of the frame is rotationally connected with an isolating switch operation shaft 4, a connecting lug in the middle of the isolating switch operation shaft 4 is connected with one end of an operating spring 5, the isolating switch operation shaft 4 is movably connected with one end of an isolating switch pull rod 6 through a connecting lug in the front side, the right side of the top of the frame is rotationally connected with a switch shaft 8, the middle of the switch shaft 8 is fixedly connected with a rotary aircraft head 7, the top of the rotary aircraft head 7 is movably connected with the other end of the isolating switch pull rod 6, the lower side of the middle of the frame is rotationally connected with a grounding switch operation shaft 15, the connecting lug in the middle of the grounding switch operation shaft 15 is connected with the other end of the operating spring 5, the grounding switch operation shaft 15 is also movably connected with one end of a grounding switch pull rod 16 through a connecting lug in the front side, and the other end of the grounding switch pull rod 16 is movably connected with the bottom of the rotary aircraft head 7;
wherein, the frame is formed by connecting a left supporting plate 1, a rear supporting plate 2, a right supporting plate 3 and a front supporting plate 12 through bolts;
the opening and closing brake limiting assembly is arranged on the left side in the frame;
the indicating interlocking component is arranged at the bottom of the front side of the frame, and the right end of the indicating interlocking component is movably connected with a bottom front side connecting column of the rotary aircraft head 7.
The front ends of the isolating switch operating shaft 4 and the grounding switch operating shaft 15 are respectively provided with a jack, an operating handle is inserted into the jacks of the isolating switch operating shaft 4 and the grounding switch operating shaft 15 and then is clamped with the isolating switch operating shaft 4 and the grounding switch operating shaft 15, and the isolating switch operating shaft 4 or the grounding switch operating shaft 15 can be driven to rotate by rotating the operating handle;
when the isolating switch is used, the operating handle is inserted into the jack at the front end of the isolating switch operating shaft 4 to drive the isolating switch operating shaft 4 to rotate clockwise so as to compress the operating spring 5, after the operating spring 5 passes through a dead point, the energy storage of the operating spring 5 is automatically released to push the isolating switch pull rod 6 to move rightwards, the isolating switch pull rod 6 pushes the rotary aircraft head 7 to rotate clockwise, the rotary aircraft head 7 drives the switch shaft 8 to rotate clockwise to finish the closing action of the isolating switch, the opening and closing limit assembly limits the clockwise rotation range of the isolating switch operating shaft 4, so that the clockwise rotation angles of the isolating switch operating shaft 4 and the switch shaft 8 are limited, the closing position is ensured, the isolating switch operating shaft 4 and the switch shaft 8 are stopped rotating after closing, the isolating switch operating shaft 4 is driven by the operating spring 5 by a second-half mechanism, so that the closing process of the isolating switch is ensured to be irrelevant to manpower, and the force value of the operating spring 5 determines the speed of the switch;
similarly, the isolation brake is operated reversely, an operating handle is inserted into an insertion hole at the front end of the isolation switch operating shaft 4, the operating spring 5 is compressed in a counterclockwise rotation mode, after the operating spring 5 passes through a dead point, energy stored by the operating spring 5 is automatically released, the isolation switch pull rod 6 is pushed to move leftwards, the isolation switch pull rod 6 pulls the rotary aircraft head 7 to rotate anticlockwise, the rotary aircraft head 7 drives the switch shaft 8 to rotate anticlockwise to complete brake separation of the isolation switch, and a brake opening and closing limiting assembly limits the anticlockwise rotation range of the isolation switch operating shaft 4, so that anticlockwise rotation angles of the isolation switch operating shaft 4 and the switch shaft 8 are limited, and the brake separation position is ensured;
the grounding switch is similar to the isolating switch in closing, an operating handle is inserted into an insertion hole at the front side of the grounding switch operating shaft 15, the grounding switch operating shaft 15 is driven to rotate clockwise to compress the operating spring 5, after the operating spring 5 passes through a dead point, the energy storage of the operating spring 5 is automatically released, the grounding switch pull rod 16 is pushed to move rightwards, the grounding switch pull rod 16 pushes the rotary aircraft head 7 to rotate anticlockwise, and accordingly the switching shaft 8 is enabled to rotate anticlockwise to complete closing action of the grounding switch;
the same operating handle is inserted into the jack at the front side of the grounding switch operating shaft 15 to drive the grounding switch operating shaft 15 to rotate anticlockwise to compress the operating spring 5, after the operating spring 5 passes through a dead point, the energy storage of the operating spring 5 is automatically released to push the grounding switch pull rod 16 to move leftwards, and the grounding switch pull rod 16 pushes the rotary aircraft head 7 to rotate clockwise, so that the switching shaft 8 rotates clockwise to complete the switching-off action of the grounding switch;
the indication interlocking assembly can intuitively indicate each position of the switch, meanwhile, the interlocking between the three-position switches is effectively ensured, the jack at the front side of the grounding switch operating shaft 15 is blocked when the isolating switch is closed, the jack at the front side of the grounding switch operating shaft 15 cannot be inserted into the operating handle, the jack at the front side of the isolating switch operating shaft 4 is blocked when the grounding switch is closed, and the jack at the front side of the isolating switch operating shaft 4 cannot be inserted into the operating handle.
In a second embodiment, please refer to fig. 1-2, the present utility model provides the following technical solutions: the spring operated isolation grounding switch mechanism, this embodiment is further described with respect to embodiment one;
the opening and closing limiting assembly comprises an isolation closing blocking piece 9, an isolation opening limiting stopper 11, an opening limiting stopper connecting rod 14 and a limiting rotating block 22, wherein the rear side of the isolation switch operating shaft 4 is fixedly connected with one end of the limiting rotating block 22, the left side in the frame is connected with the isolation opening limiting stopper 11 through the opening limiting stopper connecting rod 14, the isolation opening limiting stopper 11 is positioned on the left side of the limiting rotating block 22, the left side rear wall in the frame is fixedly connected with the isolation closing blocking piece 9, and the isolation closing blocking piece 9 is positioned on the right side of the limiting rotating block 22.
The spacing rotating block 22 rotates along with the disconnecting switch operating shaft 4, when the disconnecting switch operating shaft 4 rotates clockwise to realize closing, the spacing closing blocking piece 9 on the right side of the spacing rotating block 22 limits the spacing rotating block 22, when the disconnecting switch operating shaft 4 rotates anticlockwise to realize opening, the spacing opening limiter 11 on the opening limiter connecting rod 14 limits the spacing rotating block 22, and the limitation of the rotation range of the disconnecting switch operating shaft 4 is completed.
The opening and closing brake limiting assembly further comprises a buffer gasket 10, and the buffer gasket 10 is arranged on one side, close to the limiting rotating block 22, of the isolating and closing brake block 9. The isolating switch-on blocking piece 9 guarantees the rotating angle of the isolating switch operating shaft 4 so as to guarantee the switch-on position, and meanwhile, the buffer gasket 10 plays a role of buffering damping, so that the service life of the mechanism is guaranteed.
In a third embodiment, please refer to fig. 1-2, the present utility model provides the following technical solutions: the spring operated isolation grounding switch mechanism, this embodiment is further described for embodiment two;
the indication interlocking assembly comprises an indication interlocking plate 13, a right transverse groove 17, a sliding column 18, a left transverse groove 19 and a limit column 20, wherein a connecting column at the front side of the bottom of the rotary aircraft head 7 penetrates through an arc-shaped through groove at the front side of the frame and is movably connected with the right end of the indication interlocking plate 13, the indication interlocking plate 13 is positioned between the isolating switch operation shaft 4 and the grounding switch operation shaft 15, the left transverse groove 19 is formed in the left end of the front side of the indication interlocking plate 13, the right transverse groove 17 is formed in the right end of the front side of the indication interlocking plate 13, the sliding column 18 which is in sliding connection with the right transverse groove 17 is arranged at the front side of the frame, and the limit column 20 which penetrates through the left transverse groove 19 is further arranged at the front side of the frame.
The indication interlocking assembly further comprises a semicircular groove 21, and the semicircular groove 21 is respectively formed in the bottom of the front end of the isolating switch operating shaft 4 and the top of the front end of the grounding switch operating shaft 15.
When the isolating switch is turned on by clockwise rotation of the isolating switch operating shaft 4, the rotating aircraft head 7 drives the right end of the indicating interlocking plate 13 to tilt upwards, the semicircular groove 21 on the isolating switch operating shaft 4 faces upwards, the lower side of the indicating interlocking plate 13 is clamped into the semicircular groove 21 on the upper side of the grounding switch operating shaft 15, and at the moment, the operating handle cannot be inserted into the jack on the front side of the grounding switch operating shaft 15, and the grounding switch operating shaft 15 cannot be operated to be turned on;
when the grounding switch operation shaft 15 rotates clockwise to finish the grounding switch closing, the rotary aircraft head 7 drives the right end of the indicating interlocking plate 13 to tilt upwards, a semicircular groove 21 on the grounding switch operation shaft 15 faces downwards at the moment, the upper side of the indicating interlocking plate 13 is clamped into the semicircular groove 21 on the lower side of the isolating switch operation shaft 4, and an operation handle cannot be inserted into the isolating switch operation shaft 4 at the moment and cannot operate the isolating switch operation shaft 4 to close;
the indicating interlocking assembly further comprises a baffle ring, the front end of the limiting post 20 is fixedly sleeved with the baffle ring, and the baffle ring can prevent the indicating interlocking plate 13 from being separated from the limiting post 20.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The spring operated isolation grounding switch mechanism is characterized by comprising:
the frame is of a box-shaped structure, the left side of the top of the frame is rotationally connected with a disconnecting switch operation shaft (4), a connecting lug at the middle part of the disconnecting switch operation shaft (4) is connected with one end of an operation spring (5), the disconnecting switch operation shaft (4) is movably connected with one end of a disconnecting switch pull rod (6) through a connecting lug at the front side, the right side of the top of the frame is rotationally connected with a connecting switch shaft (8), the middle part of the switch shaft (8) is fixedly connected with a rotary aircraft head (7), the top of the rotary aircraft head (7) is movably connected with the other end of the disconnecting switch pull rod (6), the lower side of the middle part of the frame is rotationally connected with a grounding switch operation shaft (15), the connecting lug at the middle part of the grounding switch operation shaft (15) is connected with the other end of the operation spring (5), the grounding switch operation shaft (15) is also movably connected with one end of a grounding switch pull rod (16) through a connecting lug at the front side, and the other end of the grounding switch pull rod (16) is movably connected with the bottom of the rotary aircraft head (7).
The opening and closing brake limiting assembly is arranged on the left side in the frame;
the indicating interlocking component is arranged at the bottom of the front side of the frame, and the right end of the indicating interlocking component is movably connected with a bottom front side connecting column of the rotary aircraft head (7).
2. The spring operated isolation grounding switch mechanism of claim 1, wherein: the utility model provides a spacing subassembly of switch brake includes isolation closing stop piece (9), isolation separating brake stopper (11), separating brake stopper connecting rod (14) and spacing rotating block (22), the one end of spacing rotating block (22) of rear side fixed connection of isolator operating shaft (4), the left side is connected with isolation separating brake stopper (11) through separating brake stopper connecting rod (14) in the frame, isolation separating brake stopper (11) are located the left side of spacing rotating block (22), left side back wall fixedly connected with isolation closing stop piece (9) in the frame, isolation closing stop piece (9) are located the right side of spacing rotating block (22).
3. The spring operated isolation grounding switch mechanism of claim 2, wherein: the opening and closing brake limiting assembly further comprises a buffer gasket (10), and the buffer gasket (10) is arranged on one side, close to the limiting rotating block (22), of the isolating and closing brake block (9).
4. The spring operated isolation grounding switch mechanism of claim 1, wherein: the indication interlocking assembly comprises an indication interlocking plate (13), a right transverse groove (17), a sliding column (18), a left transverse groove (19) and a limiting column (20), wherein a connecting column at the front side of the bottom of the rotary aircraft head (7) penetrates through an arc-shaped through groove at the front side of the frame and is movably connected with the right end of the indication interlocking plate (13), the indication interlocking plate (13) is positioned between the disconnecting switch operation shaft (4) and the grounding switch operation shaft (15), the left transverse groove (19) is formed in the left end of the front side of the indication interlocking plate (13), the right transverse groove (17) is formed in the right end of the front side of the indication interlocking plate (13), the sliding column (18) which is slidably connected with the right transverse groove (17) is arranged at the front side of the frame, and the limiting column (20) which penetrates through the left transverse groove (19) is further arranged at the front side of the frame.
5. The spring operated isolation grounding switch mechanism of claim 4, wherein: the indicating interlocking assembly further comprises a semicircular groove (21), and the semicircular groove (21) is respectively formed in the bottom of the front end of the isolating switch operation shaft (4) and the top of the front end of the grounding switch operation shaft (15).
6. The spring operated isolation grounding switch mechanism of claim 4, wherein: the indicating interlocking assembly further comprises a baffle ring, and the front end of the limiting column (20) is fixedly sleeved with the baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320168641.2U CN219202978U (en) | 2023-02-09 | 2023-02-09 | Spring operated isolation grounding switch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320168641.2U CN219202978U (en) | 2023-02-09 | 2023-02-09 | Spring operated isolation grounding switch mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219202978U true CN219202978U (en) | 2023-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320168641.2U Active CN219202978U (en) | 2023-02-09 | 2023-02-09 | Spring operated isolation grounding switch mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219202978U (en) |
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2023
- 2023-02-09 CN CN202320168641.2U patent/CN219202978U/en active Active
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