CN203445024U - Locking device of earthing switch and earthing switch comprising same - Google Patents
Locking device of earthing switch and earthing switch comprising same Download PDFInfo
- Publication number
- CN203445024U CN203445024U CN201320488171.4U CN201320488171U CN203445024U CN 203445024 U CN203445024 U CN 203445024U CN 201320488171 U CN201320488171 U CN 201320488171U CN 203445024 U CN203445024 U CN 203445024U
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- locking device
- earthing
- lockhole
- positioning end
- interlock ring
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Abstract
The utility model provides a locking device of an earthing switch and an earthing switch comprising the same. The locking device of the earthing switch comprises an operation shaft (2) which is provided with a first locking hole (27); a fixing piece (4) which is provided with a hole (9) used for accommodating the operation shaft (2) and is further provided with a second locking hole (6) corresponding to the first locking hole (27); and a lock (1), a lock bolt (5) of which can penetrate through the first lock hole (27) and the second lock hole (6) to move. The locking device of the earthing switch of the utility model is capable of safely and reliably locking the work state of the earthing switch.
Description
Technical field
The utility model relates to a kind of locking device, is specifically related to a kind of locking device of earthing.The utility model also relates to a kind of earthing that comprises this locking device.
Background technology
In current high-tension electricity distribution system, high voltage converter is all equipped with earthing, can be so that earthing be closed in when maintenance, thus realized safety ground, improved security performance.When high voltage converter is worked, the situation that likely there will be earthing closure, because the working voltage of high voltage converter is higher, easily cause device damage, even cause large-area power-cuts phenomenon, bring adverse effect to the reliability of electric power system, therefore need to make earthing remain open state.
For earthing is stably remained closed or off-state, potential safety hazard and the inconvenience of avoiding misoperation to bring, need to carry out locking to earthing, the position of earthing locked at present.
Chinese patent (notification number CN202996638U) discloses a kind of locking device for grounding wire, comprise housing, the front end edge of housing is horizontally arranged with the lock pin coordinating with the locking hole plug-in mounting of plug-in strip vertical-transmission operator link, the front end of housing has the first obturator hernia coordinating with lock pin plug-in mounting, the middle part of housing is penetrated with the second obturator hernia being connected with the end of the first obturator hernia, and the bearing of trend of the axis of the bearing of trend of the axis of the second obturator hernia and the first obturator hernia is perpendicular, in the second obturator hernia, be fitted with earth stud, the external part of earth stud is connected with locking nut, the below of housing is provided with the switching device matching with electric power system switch loop.But current locking device complex structure, installs the needed volume of earthing locking device larger, can not make whole high voltage converter cabinet volume reduce.Therefore needs are a kind of simple in structure, easy for installation at present, and can lock safely and reliably the locking device of earthing.
Utility model content
For above-mentioned prior art, the utility model aims to provide a kind of locking device of earthing, to realize the service position of locking earthing.
To achieve these goals, an embodiment of the present utility model provides a kind of locking device of earthing, comprising:
Operating axis, described operating axis is provided with the first lockhole; Fixture, described fixture is provided with for holding the hole of described operating axis, and described fixture also arranges second lockhole corresponding with described the first lockhole; And lock, the dead bolt of described lock can be through described the first lockhole and the motion of the second lockhole.
The locking device of earthing of the present utility model is simple in structure, and cost is low, can be safe and reliable earthing is fixed on to off-state.
Preferably, to have cross section be non-circular operating portion to described operating axis.Preferred, the cross section of described operating portion is hexagon, square or rectangular.Non-circular operating portion is convenient to rotation clamping tool holding on operating portion, thereby with rotary manipulation axle, changes the operating state of earthing.
Preferably, the cross section of described positioning end is the circle coordinating with the circular hole of described fixture.Cross section is that the resistance that rotates in the circular hole of fixture of circular positioning end is little.
Preferably, also comprise interlock ring, the cross section of described positioning end is non-circular, described interlock ring has circular lateral surface, described interlock ring has location hole coaxial with described positioning end and that match with positioning end, described positioning end is arranged in described location hole, and described interlock ring is arranged in the circular hole of described fixture, and described interlock ring has the 3rd lockhole with the coaxial setting of axle of described the first lockhole.Preferred, the cross section of described positioning end is hexagon, square or rectangular.The use that interlock ring can match with various positioning ends.
Preferably, the axial and described operating axis of described the first lockhole is axial vertical.Aligning with lockhole can be conveniently installed like this.
Preferably, on described interlock ring, there is location mark thing, for indicating the position of the relatively described fixture of described interlock ring.The operating state of judgement earthing that can be convenient and simple by location mark thing.
Preferably, in the locking device of earthing of the present utility model, described lock is electromagnetic lock.
The utility model is claimed a kind of earthing that comprises this locking device also.
Accompanying drawing explanation
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 is according to the three-dimensional exploded view of the locking device of the earthing of first embodiment of the utility model.
Fig. 2 is according to the schematic perspective view of the locking device of the earthing of first embodiment of the utility model.
Fig. 3 is the schematic perspective view that the locking device of the earthing of first embodiment of the utility model matches with earthing.
Fig. 4 is according to the three-dimensional exploded view of the locking device of the earthing of second embodiment of the utility model.
Fig. 5 is according to the three-dimensional exploded view of the locking device of the earthing of the 3rd embodiment of the utility model.
Fig. 6 is according to the three-dimensional exploded view of the locking device of the earthing of the 4th embodiment of the utility model.
Fig. 7 is according to the three-dimensional exploded view of the locking device of the earthing of the 5th embodiment of the utility model.
Main device symbol description
1 electromagnetic lock
2 operating axis
3 interlock rings
4 fixtures
5 dead bolts
6 lockholes
7 lockholes
8 location holes
9 circular holes
10 positioning ends
11 operating portions
12 shifting parts
13 dynamic cutter heads
14 stationary knife heads
15 earthing main shafts
16 earthings
17 positioning ends
18 lockholes
19 operating axis
20 positioning ends
21 operating axis
23 operating portions
24 operating axis
25 operating axis
26 positioning ends
27 lockholes
28 collar flanges
29 location mark things
Embodiment
For technical characterictic of the present utility model, object and effect being had more clearly, understand, now contrast accompanying drawing embodiment of the present utility model is described.
Fig. 1 is according to the three-dimensional exploded view of the locking device of the earthing of first embodiment of the utility model.As shown in Figure 1, comprise electromagnetic lock 1, operating axis 2, interlock ring 3 and fixture 4.Electromagnetic lock 1 has dead bolt 5, and dead bolt 5 is cylindrical shape, can pass through channel electric controlled lockmaking tongue 5 along its axial-movement, when electromagnetic lock accident power-off, and can also be by stirring dead bolt 5 along its axial-movement with the shifting part 12 of dead bolt 5 mechanical connections.An end of operating axis 2 has positioning end 10, and the operating portion 11 of close positioning end 10, and positioning end 10 is six prisms, and operating portion 11 is also six prisms.The lateral surface of interlock ring 3 is circular, and interlock ring 3 has the location hole 8 that can just in time hold positioning end 10.Shape, the size of the shape of location hole 8 and positioning end 10 match, and make positioning end 10 just in time can be arranged in location hole 8.Location hole 8 is also hexagon, and therefore interlock ring 3 has the medial surface that is six prismatic surfaces.Interlock ring 3 has the lockhole 7 that runs through medial surface and lateral surface, in one end of interlock ring 3, also has collar flange 28.Fixture 4 has circular hole 9, and circular hole 9 is positioned at the center of fixture 4, and coaxially arranges with interlock ring 3, the diameter of circular hole 9 is greater than the diameter of circumference of the lateral surface of interlock ring 3, therefore can hold interlock ring 3, fixture 4 is circular, and fixture 4 has the lockhole 6 that runs through medial surface and lateral surface.And when interlock ring 3 is arranged in the circular hole 9 of fixture 4, lockhole 6 and lockhole 7 coaxially arrange, and are in alignment with each other.Lockhole 6 can be the same large with lockhole 7, also can be different large.
Fig. 2 is according to the schematic perspective view of the locking device of the earthing of first embodiment of the utility model.As shown in Figure 2, it is shown in Figure 1 that the positioning end 10 of operating axis 2 is arranged in the location hole 8(of interlock ring 3), now, because positioning end 10 is hexagon, therefore, when positioning end 10 embeds in location hole 8, operating axis can not be around 3 rotations of interlock ring in location hole 8.Interlock ring 3 is arranged in the circular hole 9 of fixture 4, thereby operating axis 2, interlock ring 3 and fixture 4 are coaxially arranged, and is followed successively by from the inside to surface diametrically operating axis 2, interlock ring 3 and fixture 4.And by rotating gang ring 3, lockhole 6 and lockhole 7(are participated in shown in Fig. 1) be in alignment with each other.Dead bolt 5 is arranged in lockhole 6 and lockhole 7 simultaneously, and can move along lockhole 6 and lockhole 7.When dead bolt 5 motion and while being arranged in lockhole 6 and lockhole 7 simultaneously, interlock ring 3 and fixture 4 are fixed together, and because operating axis 2 inserts in the location hole 8 of interlock ring 3 and can not rotate relative to the ring 3 that links, so now operating axis 2 can not rotatablely move.When dead bolt 5 motions are not when being arranged in lockhole 7, now rotary manipulation portion 11 can drive interlock ring 3 together to identical direction rotation.
In the present embodiment, lockhole 6 and lockhole 7 axially with operating axis can be axially vertical, thereby make lockhole 6 and lockhole vertical alignment Shang Xia 7, facilitate like this in dead bolt 5 insertion lockholes 6 and lockhole 7.In addition, dead bolt 5 can also be to have taper shape, and the diameter that inserts lockhole 7 is less than the diameter that inserts lockhole 6.
In other distressed structures of the present embodiment, positioning end 10 can be the prism of other numbers such as triangular prism, quadrangular, can also be Elliptic Cylinder, bullet and the combination in any shape between them or etc. other arbitrary shapes, as long as the cross section of positioning end 10 is non-circular.In addition, operating portion 11 can also be positioned on other positions of operating axis 2, equally, operating portion 11 can be other the prism such as triangular prism, quadrangular, can also be Elliptic Cylinder, bullet and the combination in any shape between them or other arbitrary shapes, as long as the cross section of operating portion 11 is non-circular.The cross section of preferred operations portion 11 is square, cuboid, positive six prisms and positive eight prisms.Thereby can adopt like this throws such as spanner to be easy to clamp operating portion 11 and facilitate rotary manipulation axle 2.
Fig. 3 is the schematic perspective view that the locking device of the earthing of first embodiment of the utility model matches with earthing.As shown in Figure 3, earthing 16 comprises: dynamic cutter head 13; With the earthing main shaft 15 being fixedly connected with dynamic cutter head 13; And with the stationary knife head 14 of the corresponding setting of dynamic cutter head 13.Shown in Fig. 3 is earthing 16 disconnection.By operating axis 2 and coaxial the setting also of earthing main shaft 15 are removably fixed together, when the closed earthing 16 of needs, (dynamic cutter head 13 and stationary knife head 14 are electrically connected to), by energising, controlling electromagnetic lock 1 moves upward (from lockhole 7(as shown in Figure 1) dead bolt 5 to pull out), then by throw (as spanner), be clamped on operating portion 11, and rotary manipulation portion 11 is to drive 15 rotations of earthing main shaft, then make dynamic cutter head 13 contact with stationary knife head 14, thereby earthing 16 closures, in ground state.When needs earthing 16 is during in off-state, by throw, be clamped on operating portion 11, rotary manipulation portion 11 also drives 15 rotations of earthing main shaft, thereby make dynamic cutter head 13 separated with stationary knife head 14, now lockhole 7 rotates to and lockhole 6 consistencies from top to bottom, by electromagnetic lock 1, dead bolt is moved downward, insert in lockhole 6 and lockhole 7, thereby dynamic cutter head 13 is fixed on and stationary knife head off-state.Now operating portion 11 can not rotate, thereby has guaranteed the power supply that earthing can continue.
Fig. 4 is according to the three-dimensional exploded view of the locking device of the earthing of second embodiment of the utility model.Itself and Fig. 1 are basic identical, difference is, locking device has lacked the interlock ring 3 in Fig. 1, and in the positioning end 17 of operating axis 19, has the lockhole 18 perpendicular to the axis of operating axis 19, when positioning end 17 is arranged in the circular hole 9 of fixture 4, lockhole 18 and lockhole 6 and dead bolt 5 alignment are arranged.In the present embodiment, thereby the size of positioning end 17 is less than the diameter of circular hole 9, positioning end 17 can be rotatablely moved in circular hole 9, dead bolt 5 has the length that can simultaneously insert lockhole 18 and lockhole 6 in addition.
Fig. 5 is according to the three-dimensional exploded view of the locking device of the earthing of the 3rd embodiment of the utility model.Itself and Fig. 4 are basic identical, and difference is, the positioning end 20 of operating axis 21 is cylindrical, and the diameter of positioning end 20 is less than the diameter of circular hole 9, the easily rotation in circular hole 9 of the lateral surface of positioning end 20 circles.
Fig. 6 is according to the three-dimensional exploded view of the locking device of the earthing of the 4th embodiment of the utility model.Itself and Fig. 5 are basic identical, and difference is that the cross section of the operating portion 23 of operating axis 24 is square, and operating portion 23 is square or cuboid.
Fig. 7 is according to the three-dimensional exploded view of the locking device of the earthing of the 5th embodiment of the utility model.Itself and Fig. 1 are basic identical, and difference is to have the lockhole 27 perpendicular to the axis of operating axis 25 in the positioning end 26 of operating axis 25, and when positioning end 26 is arranged in the location hole 8 of interlock ring 3, lockhole 27, lockhole 7 and lockhole 6 alignment are arranged.On the side of collar flange 28, there is location mark thing 29, in the present embodiment, location mark thing 29 is for having certain thickness groove, when lockhole 7 and lockhole 6 alignment, earthing disconnects, and location mark thing 29 is positioned at a position, after lockhole 7 is with respect to lockhole 6 rotations, while being earthing closure, location mark thing 29 is positioned at another location, can conveniently determine the operating state of earthing like this.In other embodiment, only otherwise be positioned at lateral surface and the medial surface of interlock ring, location mark thing can be thrust, pit or the groove of various shapes to location mark thing, can also be adhesive tape or paint that the color encircled with interlock has sharp contrast.
The locking device of earthing of the present utility model is simple in structure, and volume is little, and cost is low, and earthing is easy for installation, and can be grounded easily disconnection and the closure of cutter.
Those skilled in the art is known, and the locking device of earthing of the present utility model is not defined in high voltage converter, can also for other power consumption equipment and carry out safeguard protection, the problems such as potential safety hazard of avoiding this power consumption equipment misoperation to bring.
Be to be understood that, although this specification is described according to each embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
The foregoing is only the schematic embodiment of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, is not departing from equivalent variations, modification and the combination of doing under the prerequisite of design of the present utility model and principle, all should belong to the scope of the utility model protection.
Claims (10)
1. a locking device for earthing, is characterized in that, described locking device comprises:
Operating axis (2), described operating axis (2) is provided with the first lockhole (27);
Fixture (4), described fixture (4) is provided with the hole (9) for holding described operating axis (2), and described fixture (4) is also provided with second lockhole (6) corresponding with described the first lockhole (27); With
Lock (1), the dead bolt (5) of described lock (1) can be through described the first lockhole (27) and the second lockhole (6) motion.
2. the locking device of earthing according to claim 1, is characterized in that, it is non-circular operating portion (11) that described operating axis (2) has cross section.
3. the locking device of earthing according to claim 1 and 2, is characterized in that, described operating axis (2) has a positioning end (17), and the cross section of described positioning end (17) is the circle coordinating with the hole (9) of described fixture (4).
4. the locking device of earthing according to claim 1, it is characterized in that, also comprise interlock ring (3), the cross section of described positioning end (17) is non-circular, described interlock ring (3) has circular lateral surface, described interlock ring (3) has location hole (8) coaxial with described positioning end (17) and that match with positioning end (17), described positioning end (17) is arranged in described location hole (8), described interlock ring (3) is arranged in the hole (9) of described fixture (4), described interlock ring (3) has the 3rd lockhole (7) with the coaxial setting of axle of described the first lockhole (27).
5. the locking device of earthing according to claim 1, is characterized in that, the axial and described operating axis (2) of described the first lockhole (27) axial vertical.
6. the locking device of earthing according to claim 2, is characterized in that, the cross section of described operating portion (11) is hexagon, square or rectangular.
7. the locking device of earthing according to claim 4, is characterized in that, the cross section of described positioning end (17) is hexagon, square or rectangular.
8. the locking device of earthing according to claim 4, is characterized in that, on described interlock ring (3), has location mark thing, for indicating the position of the relatively described fixture of described interlock ring (3).
9. the locking device of earthing according to claim 1, is characterized in that, described lock (1) is electromagnetic lock.
10. an earthing that comprises locking device claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320488171.4U CN203445024U (en) | 2013-08-09 | 2013-08-09 | Locking device of earthing switch and earthing switch comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320488171.4U CN203445024U (en) | 2013-08-09 | 2013-08-09 | Locking device of earthing switch and earthing switch comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203445024U true CN203445024U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320488171.4U Expired - Lifetime CN203445024U (en) | 2013-08-09 | 2013-08-09 | Locking device of earthing switch and earthing switch comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203445024U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465162A (en) * | 2014-12-24 | 2015-03-25 | 国家电网公司 | Electric load disconnection earthing knife-switch interlocking device |
| CN112582931A (en) * | 2019-09-29 | 2021-03-30 | 河南森源电气股份有限公司 | Chassis car, handcart-type circuit breaker and cubical switchboard |
-
2013
- 2013-08-09 CN CN201320488171.4U patent/CN203445024U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465162A (en) * | 2014-12-24 | 2015-03-25 | 国家电网公司 | Electric load disconnection earthing knife-switch interlocking device |
| CN104465162B (en) * | 2014-12-24 | 2017-01-18 | 国家电网公司 | Electric load disconnection earthing knife-switch interlocking device |
| CN112582931A (en) * | 2019-09-29 | 2021-03-30 | 河南森源电气股份有限公司 | Chassis car, handcart-type circuit breaker and cubical switchboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |