CN216213078U - Locking device for inherent positions of isolating switch and grounding switch - Google Patents
Locking device for inherent positions of isolating switch and grounding switch Download PDFInfo
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- CN216213078U CN216213078U CN202122332585.5U CN202122332585U CN216213078U CN 216213078 U CN216213078 U CN 216213078U CN 202122332585 U CN202122332585 U CN 202122332585U CN 216213078 U CN216213078 U CN 216213078U
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Abstract
The utility model relates to a locking device for inherent positions of an isolating switch and a grounding switch, which comprises an isolating switch operating mechanism, a locking mechanism and a locking mechanism, wherein the isolating switch operating mechanism comprises a first operating box, a first operating rod which vertically and upwards extends out of the first operating box is arranged in the first operating box; the locking device operating mechanism comprises a second operating box, the second operating box is arranged beside the first operating box, and a rotating disk which is positioned above the first operating box and beside the first operating rod is arranged beside the second operating box; and the interlocking mechanism comprises a first interlocking piece and a second interlocking piece, and the first operating rod is locked or unlocked by matching the first interlocking piece with the second interlocking piece. The utility model has the advantages that: realize locking or unblock to first action bars through the cooperation of first even latch fitting and second even latch fitting, the spare part that whole locking process involved is few, and relative driving medium is also less, and the action is convenient, and corresponding error probability has also greatly reduced.
Description
Technical Field
The utility model relates to the field of isolating switches, in particular to a locking device for inherent positions of an isolating switch and a grounding switch.
Background
According to the standard requirements, for safety, for example, during maintenance, the high-voltage disconnecting switch should be in an open state, the grounding switch should be in a closed state, and during field operation, when the maintenance work is not completed, an artificial accidental misoperation may occur, or an unexpected abnormal condition that the main knife is suddenly closed or the ground knife is suddenly opened due to natural disasters such as strong wind and earthquake may occur, which threatens the life safety of the maintenance personnel.
At present, if a high-voltage isolating switch on the market is only provided with an isolating switch without an earthing switch, an electromagnetic lock is arranged at a crank hole of a mechanism box, and a person is prevented from mistakenly inserting a crank to operate the isolating switch. However, in the mechanical transmission assembly, there is no mechanical locking device, and the electromagnetic lock key is a universal key, so that the risk of field misoperation cannot be avoided.
If the disconnector comprises an earthing switch arrangement, it is required to provide a mechanical and electrical interlock between the disconnector and the earthing switch, but the earthing switch itself is mechanically driven without a mechanical locking device. In the process of overhauling the isolating switch or the circuit, the accidental condition that the grounding switch is opened by manual misoperation cannot be avoided.
The patent CN201020179846.3 also discloses an interlocking device for a two-pole horizontal fracture disconnecting switch, which includes a moving-side interlocking device, a static-side interlocking device and a connecting rod, and the device enables the disconnecting switch to be switched on when the main knife is switched on, and the main knife is not switched on when the ground knife is switched on, so as to effectively ensure the safe operation of high-voltage equipment and the personal safety of field operators. The device has the characteristics of simple and reasonable structure, stable and reliable action, good linkage effect, convenient operation, safety, durability, good corrosion resistance and the like.
The interlocking device realizes the interlocking locking of the main knife and the ground knife in the process of action, namely the main knife and the ground knife need to synchronously act at two positions, so the whole structure needs to comprise a movable side interlocking device, a static side interlocking device, a connecting rod and other parts, the related parts are more and complicated, the whole device needs to be realized by matching a plurality of transmission parts such as a rod-shaped structure, a wheel-shaped structure and the like, the parts needing to act are more, the whole action process is more complicated, the probability of deviation or error in the action process is higher once a plurality of transmission parts are arranged, the probability of abnormal interlocking is relatively increased, and the interlocking device can not realize the locking of the ground switch at the closing position.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a locking device for inherent positions of an isolating switch and a grounding switch, which has a simple structure and is convenient to operate.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a isolator and earthing switch locking device for inherent position which innovation point lies in: comprises that
The isolating switch operating mechanism comprises a first operating box, a first operating rod which vertically and upwards extends out of the first operating box is arranged in the first operating box, and the first operating rod is driven by a motor in the first operating box to rotate;
the locking device operating mechanism comprises a second operating box, the second operating box is arranged beside the first operating box, a rotating disk is arranged beside the first operating rod and above the first operating box, and the rotating disk is driven by a motor arranged in the second operating box to rotate;
the interlocking mechanism comprises a first interlocking piece arranged on the first operating rod and a second interlocking piece arranged on the rotating disk, and the first operating rod is locked or unlocked through the cooperation of the first interlocking piece and the second interlocking piece.
Further, first interlocking piece includes a pair of splint, has all opened an arc recess in the mutual adjacent one side of two splint, and two splint suit are respectively in the both sides of first action bars to be connected fixedly with first action bars through the cooperation of bolt and nut, still be fixed with a jam plate at the side of the splint that are close to second interlocking piece, the jam plate is the 7 font plate structures that are formed by connecting jointly by a diaphragm, a riser, and wherein the riser is fixed with splint, and it has a spacing breach to open at the side of diaphragm, second interlocking piece is including connecting the latch segment in the rotary disk outside, and this latch segment is driven by the rotary disk and is switched between horizontality and vertical state to realize the locking or the unblock to first action bars with the latch segment cooperation.
Furthermore, the clamping plate and the first operating rod are tightly fixed through a tightening bolt.
The utility model has the advantages that: the locking device is directly arranged at the operating rod of the isolating switch operating mechanism, directly locks the operating rod, realizes independent locking of the operating rod, and ensures that the grounding switch is locked at a switch-on position.
Realize locking or unblock to first action bars through the cooperation of first even latch fitting and second even latch fitting, the spare part that whole locking process related is few, relative driving medium is also less, and the action is convenient, and corresponding error or unusual probability also greatly reduced, both can prevent manual crank operation, can prevent again that electronic and distant place electric operation are in the spot, have improved isolator's reliability greatly.
The first interlocking piece adopts the design of two splint and locking plate, and the second interlocking piece adopts the design of latch segment for whole interlocking device's simple structure, the spare part of constitution is few, provides the basis for follow-up stable locking.
The jacking bolt additionally arranged between the clamping plate and the first operating rod is used for fixing the relative position between the clamping plate and the first operating rod, so that the phenomenon that relative sliding occurs between the clamping plate and the first operating rod due to unstable connection between the two clamping plates and the first operating rod is avoided, and further the operation of the interlocking mechanism is influenced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view showing an unlocked state of a locking device for intrinsic positions of a disconnecting switch and an earthing switch according to the present invention.
Fig. 2 is an enlarged schematic view of an unlocking state of the interlock mechanism in the present invention.
Fig. 3 is a schematic view showing a locked state of the locking device for intrinsic positions of the disconnecting switch and the earthing switch according to the present invention.
Fig. 4 is an enlarged schematic view of the locked state of the interlock mechanism in the present invention.
Detailed Description
The following examples are presented to enable one of ordinary skill in the art to more fully understand the present invention and are not intended to limit the scope of the embodiments described herein.
A locking device for the intrinsic positions of a disconnecting switch and an earthing switch as shown in figures 1-4 comprises
An isolator operating device, isolator operating device include first control box 1, install a vertical first action bars 2 that upwards stretches out outside first control box 1 in first control box 1, and this first action bars 2 is rotated by motor or the operating mechanism drive of installing in first control box to realize isolator's divide-shut brake.
And the locking device operating mechanism comprises a second operating box 3, the second operating box 3 is arranged beside the first operating box 1, a rotating disk 4 which is positioned above the first operating box 1 and beside the first operating rod 2 is arranged beside the second operating box 3, and the rotating disk 4 is driven by a motor arranged in the second operating box 1 to rotate.
A worm and gear reduction box and a rotating structure are further arranged in the second operation box 3 and are used for realizing the rotation of the rotating disc 4 and providing a foundation for the locking and unlocking of a subsequent interlocking mechanism.
An auxiliary switch structure can be designed in the second operation box 3, position signals of the mechanism can be fed back, and a temperature and humidity controller is designed in the second operation box 3 and can play a role in dehumidification when the humidity is too high.
And the interlocking mechanism comprises a first interlocking piece arranged on the first operating rod 2 and a second interlocking piece arranged on the rotating disk 4, and the first interlocking piece and the second interlocking piece are matched to realize the locking or unlocking of the first operating rod 2.
First interlocking includes a pair of splint 5, has all opened an arc recess in two splint 5 mutual adjacent one sides, and two splint 5 suit are in the both sides of first action bars 2 respectively to cooperation through bolt 6 and nut 7 is connected fixedly with first action bars 2, and its connection cooperation specifically is: all open four through-holes that hold bolt 6 and pass on two splint 5, laminate one side that has the arc recess with two splint 5 on the outer wall of first action bars 2, behind four bolts 6 of rethread passed each through-hole on two splint 5 in proper order, utilize nut 7 to lock.
Between splint 5 and the first action bars 2 tightly fix through 8 tops of a tight bolt in top, its top tightly cooperates and is: open the through-hole that has one to hold tight bolt 8 in top and pass in the middle part position of one of them splint 5, the outside of this splint 5 is located through-hole department and still is fixed with a tight nut 9 in top, tight bolt 8 and the tight nut 9 screw-thread fit in top, the top is tight on the outer wall of first action bars 2 after the through-hole on splint 5 is passed to the front end of tight bolt 8 in top, thereby realized the top tight of splint 5 with first action bars 2, follow-up tight effect in order to better realization top, can also open one on the outer wall of first action bars 2 with the tight bolt 8 matched with screw thread blind hole in top. The tightening bolt 8 additionally arranged between the clamping plate 5 and the first operating rod 2 is used for fixing the relative position between the clamping plate 5 and the first operating rod 2, so that the phenomenon that the clamping plate 5 and the first operating rod 2 slide relative to each other due to unstable connection between the two clamping plates 5 and the first operating rod 2 is avoided, and further the operation of the interlocking mechanism is influenced.
The side of splint 5 that is close to the second even latch fitting still is fixed with a jam plate, the jam plate is for being connected the 7 font plate structures that form jointly by a diaphragm 11, a riser 10, and wherein riser 10 is fixed with splint 5, and it has a spacing breach to open at the side of diaphragm 11, and the second even latch fitting is including connecting the latch segment 12 in the rotary disk 4 outside, and this latch segment 12 is driven by rotary disk 4 and switches between horizontality and vertical state to realize the locking or the unblock to first action bars 2 with the jam plate cooperation. The first interlocking piece adopts the design of two splint 5 and locking plate, and the second interlocking piece adopts the design of latch segment 12 for whole interlocking device's simple structure, the spare part of constitution is few, provides the basis for follow-up stable locking.
The working principle is as follows: in the unlocking state, the motor in the second operation box 3 drives the rotating disc 4 to rotate, so as to drive the locking block 12 to rotate, so that the locking block 12 is in a horizontal state, as shown in fig. 2, in the unlocking state, the isolating switch can drive the first operation rod 2 to perform free opening and closing operations.
After isolator combined floodgate, need lock, in order to avoid when electronic or manual maloperation, need lock, this moment, by rotating by motor drive rotary disk 4 in the second control box 3, thereby drive latch segment 12 and rotate, make latch segment 12 become vertical state, make latch segment 12 be located diaphragm 11's breach department, lock the latch segment, the latch segment counter-clockwise turning has been avoided, thereby it reliably keeps at the combined floodgate position to have guaranteed isolator or earthing switch.
According to the locking device, the first operating rod is locked or unlocked through the matching of the first interlocking piece and the second interlocking piece, the number of parts related to the whole locking process is small, the number of relative transmission pieces is small, the action is convenient, the probability of corresponding errors or abnormity is greatly reduced, the manual crank operation can be prevented, the local electric operation and the remote electric operation can be prevented, and the reliability of the isolating switch is greatly improved.
The locking device can be operated manually, electrically on site and remotely, and can effectively prevent the misoperation of an electric mechanism of an isolating switch or an electric mechanism of a grounding switch through the transmission part of the locking and unlocking mechanism.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. A locking device for inherent positions of a disconnecting switch and an earthing switch is characterized in that: comprises that
The isolating switch operating mechanism comprises a first operating box, a first operating rod which vertically and upwards extends out of the first operating box is arranged in the first operating box, and the first operating rod is driven by a motor in the first operating box to rotate;
the locking device operating mechanism comprises a second operating box, the second operating box is arranged beside the first operating box, a rotating disk is arranged beside the first operating rod and above the first operating box, and the rotating disk is driven by a motor arranged in the second operating box to rotate;
the interlocking mechanism comprises a first interlocking piece arranged on the first operating rod and a second interlocking piece arranged on the rotating disk, and the first operating rod is locked or unlocked through the cooperation of the first interlocking piece and the second interlocking piece.
2. The locking device for intrinsic positions of disconnecting switch and earthing switch according to claim 1, characterized in that: first interlocking includes a pair of splint, has all opened an arc recess in the mutual adjacent one side of two splint, and two splint do not suit in the both sides of first action bars to cooperation through bolt and nut is connected fixedly with first action bars, is still fixed with a jam plate at the side of the splint that are close to the second even latch fitting, the jam plate is the 7 font plate structures that are formed by connecting jointly by a diaphragm, a riser, and wherein the riser is fixed with splint, has opened a spacing breach at the side of diaphragm, the second even latch fitting is including connecting the latch segment in the rotary disk outside, and this latch segment is driven by the rotary disk and is switched between horizontality and vertical state to realize the locking or the unblock to first action bars with the latch segment cooperation.
3. The locking device for intrinsic positions of disconnecting switch and earthing switch according to claim 2, characterized in that: the clamping plate and the first operating rod are tightly fixed through a tightening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122332585.5U CN216213078U (en) | 2021-09-26 | 2021-09-26 | Locking device for inherent positions of isolating switch and grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122332585.5U CN216213078U (en) | 2021-09-26 | 2021-09-26 | Locking device for inherent positions of isolating switch and grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216213078U true CN216213078U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122332585.5U Active CN216213078U (en) | 2021-09-26 | 2021-09-26 | Locking device for inherent positions of isolating switch and grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216213078U (en) |
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2021
- 2021-09-26 CN CN202122332585.5U patent/CN216213078U/en active Active
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