CN218215050U - Anti-misoperation locking device for medium-high voltage switch cabinet - Google Patents
Anti-misoperation locking device for medium-high voltage switch cabinet Download PDFInfo
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- CN218215050U CN218215050U CN202222428400.5U CN202222428400U CN218215050U CN 218215050 U CN218215050 U CN 218215050U CN 202222428400 U CN202222428400 U CN 202222428400U CN 218215050 U CN218215050 U CN 218215050U
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- rod
- actuating lever
- locking
- medium
- high voltage
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Abstract
The utility model discloses a well high tension switchgear prevents maloperation blocking device for prevent the earthing switch malfunction by actuating lever driven in the cubical switchboard, including locating near the locking lever in actuating lever position, self endwise slip can only be followed to the locking lever and resettable, and the actuating lever surface is equipped with the composite set, and the inserted bar that the locking lever is connected inserts to the composite set in. The utility model discloses can overhaul when the cubical switchboard, through the restriction to the actuating lever, prevent the ground connection sword malfunction.
Description
Technical Field
The utility model relates to a cubical switchboard field specifically is a well high-voltage switchgear prevents maloperation blocking device.
Background
The five prevention is short for preventing five kinds of electrical misoperation in the power system, namely mistakenly opening and closing a circuit breaker, opening and closing an isolating switch with load, opening (closing) a grounding open wire (switch) with electricity, closing the circuit breaker (isolating switch) with a grounding wire (switch) and mistakenly entering an electrified interval. Therefore, a certain sequence of operations between the various switchgear devices is necessary, otherwise serious consequences and even accidents can occur. For this reason, the switch cabinet should have a "five-prevention" function. The earthing switch in the medium voltage switch cabinet is used as earthing protection when being used as equipment maintenance, and the earthing switch is prevented from being switched off by mistake in maintenance, so that the maintenance process is in a state without earthing protection, accidents are caused, and even casualties are caused. At present, no device for preventing misoperation exists on the grounding switch, and meanwhile, no corresponding prompt exists on whether the grounding switch is switched on in place or not.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a well high tension switchgear prevents maloperation blocking device to the problem of the easy malfunction of earthing switch in the prior art cubical switchboard is solved.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
the utility model provides a well high tension switchgear prevents maloperation blocking device for prevent the earthing switch malfunction in the cubical switchboard, the cubical switchboard internal rotation is installed the actuating lever and is used for driving the earthing switch action, including locating near actuating lever position's dead lever, the dead lever only can follow self endwise slip and can reset, the actuating lever surface is equipped with the composite trough, the composite trough is including locating the ring channel of actuating lever surface and the spacing groove of being connected with the ring channel, the dead lever is connected with the inserted bar, the inserted bar inserts to the composite trough in.
Furthermore, the limiting groove is a triangular groove.
Furthermore, the locking rod comprises a square rod section and a cylindrical rod section connected to one end of the square rod section.
Furthermore, a spring is installed on the locking rod, and the locking rod compresses the spring when sliding and realizes reset through the elastic force of the spring.
Furthermore, the inserted link is a cylindrical rod.
Compared with the prior art, the utility model has the advantages that:
1. the utility model discloses set up the locking pole for the cubical switchboard is overhauing, and the inserted bar of locking pole is located the spacing inslot of actuating lever when the earthing switch ground connection, makes to carry out spacingly to the actuating lever, prevents to lead to the actuating lever to rotate because the maloperation carries out the separating brake of earthing switch.
2. The utility model discloses simple structure, it is convenient to dismantle, sets up the spacing groove simultaneously, and the spacing groove is the triangular groove, rotates at the actuating lever of ground connection sword and makes when closing a floodgate, and the locking lever can't slide when the combined floodgate does not target in place appears and targets in place, and pulling locking lever inserted bar promotes the actuating lever and rotates, makes it rotate and targets in place to realize closing a floodgate.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is a schematic structural diagram of a driving rod according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a locking rod according to an embodiment of the present invention.
Fig. 5 is a schematic structural view illustrating the cooperation between the insertion rod and the driving rod when the brake is not in place.
The reference numerals are explained below:
in the figure: 1. a cabinet body; 2. a grounding knife; 3. a locking lever; 4. inserting a rod; 5. a limiting groove; 6. an annular groove; 7. a drive rod; 8. a frame body; 9. a square hole; 10. a connecting plate; 31. a blocking plate; 32. a sleeve; 33. a spring; 34. a cylindrical rod section; 35. a square pole section.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1-4, the anti-misoperation locking device of the high-voltage switch cabinet in the embodiment is used for preventing the misoperation of the grounding switch 2 in the switch cabinet.
The cubical switchboard includes the cabinet body 1, earthing switch 2 installation is fixed in the cabinet body 1, earthing switch is when being used for overhauing ground connection, it rotates the drive connecting rod through actuating lever 7 and rotates to drive the connecting rod during earthing switch operation, specific actuating lever 7 rotates and installs in the support body 8 of the internal 1 of cabinet, actuating lever 7 is connected with earthing switch 8's moving contact through link mechanism, when actuating lever 7 rotates and drives the connecting rod and rotate, make earthing switch 2's moving contact rotate and contact with the static contact, accomplish the combined floodgate process, 7 antiport of actuating lever make moving contact antiport realize that moving contact and static contact separate into the separating brake process, this earthing switch 2's operation and structure are prior art, this embodiment has not improved.
In this embodiment, a locking rod 3 is slidably mounted in the inner frame 8 of the cabinet 1 at a position below the driving rod 7, and the locking rod 3 is used for limiting whether the driving rod 7 rotates.
Specifically, locking rod 3 includes square pole section 35, cylinder pole section 34 and closure plate 31, and the thread groove has been seted up respectively at the both ends of square pole section 35, and the thread groove threaded connection of the thread and square pole section 35 one end is passed through to 34 one end of cylinder pole section, and the tip of the 34 other end of cylinder pole section has the external screw thread, and closure plate 31 threaded connection is on 34 other ends of cylinder pole section.
The frame body 8 is provided with square holes 9 corresponding to the two ends of the square rod section 35 respectively, the two ends of the square rod section 35 penetrate out of the square holes 9 corresponding to the two ends of the square rod section respectively, and the locking rod 3 cannot rotate integrally but can only slide along the axial direction of the locking rod 3 due to the limitation of the square holes 9. The end of the square rod section 35 which is not connected to the cylindrical rod section 34 faces the cabinet door on the front side of the switchgear cabinet, and this end of the square rod section 35 is in contact with the cabinet door when the latter is closed.
A sleeve 32 is fixed at the position of the other end of the rear connecting plate 10 corresponding to the cylindrical rod section 34 in the switch cabinet, and the other end of the cylindrical rod section 34 penetrates through the sleeve 32 and the corresponding position of the connecting plate 10. The cylindrical rod section 34 is externally sleeved with a spring 33, one end of the spring 33 is fixed at the corresponding end of the square rod section 35, and the other end of the spring 33 is fixed at the connecting plate 10. The spring functions to be compressed when the latching lever 3 slides to provide an elastic force for restoring the latching lever 3, whereby elastic sliding of the latching lever can be achieved.
The combination groove is formed in the driving rod 7 of the grounding knife 2 and comprises an annular groove 6 circumferentially arranged on the outer surface of the driving rod 7 and a limiting groove 5 arranged on the outer surface of the driving rod 7 and communicated with the annular groove 6, and the limiting groove 5 is of a triangular groove structure. The outer wall of the square rod section 35 of the locking rod 3 is fixedly connected with an inserted rod 4, and the inserted rod 4 is inserted into a combined groove on the outer surface of the driving rod 7.
When using, the cabinet door of cabinet body rear side is closed and can be pressed locking rod 3 and move and make its slip, inserted bar 4 slides out from the spacing groove 5 of actuating lever 7, slide to the position of ring channel 6, can rotate actuating lever 7 this moment and carry out earthing switch-off operation of earthing switch 2, when needs are overhauld, it makes moving contact and static contact to rotate actuating lever 7, earthing switch 2 ground connection this moment, open the back door of the cabinet body and overhaul the time, locking rod 3 can slide under the effect of spring 33, make inserted bar 4 slide to the spacing groove 5 in, accomplish the spacing of actuating lever 7, when overhauing the back door and not closing like this, actuating lever 7 can't be driven pivoted, can realize preventing maloperation and separating earthing switch 2.
The limiting groove 5 is a triangular groove, the purpose of the triangular groove is to prevent the driving rod 7 from rotating, the moving contact does not rotate in place, the cylindrical rod section 34 of the locking rod 3 is provided with scales, after the grounding switch 2 is switched on, the rear door of the cabinet body is opened, the locking rod 3 slides under the action of the spring 33, when the moving contact rotates in place, the cylindrical rod section 34 is exposed out of the connecting plate at the rear side of the cabinet body to form a scale, when the moving contact does not rotate in place, the locking rod 3 slides, the inserting rod 4 cannot directly slide in place, referring to fig. 5, the sliding position of the inserting rod 4 does not slide in place, at the moment, the scale exposed out of the cylindrical rod section 34 at the rear end can be observed, when the locking rod 3 does not slide in place, the locking rod 3 is pulled, the locking rod 3 slides, the inserting rod 4 slides in the triangular groove, because the locking rod 3 can only slide and cannot rotate, under the sliding limit of the inserting rod 4, the driving rod 7 can rotate, so that the moving contact with the moving contact is further, and the moving contact with the static contact in place, and switching-on-place is realized.
The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.
Claims (5)
1. The utility model provides a well high tension switchgear prevents maloperation blocking device for prevent the earthing switch malfunction in the cubical switchboard, the cubical switchboard internal rotation is installed the actuating lever and is used for driving the earthing switch action, a serial communication port, including locating near actuating lever position locking rod, the locking rod only can follow self endwise slip and can reset, the actuating lever surface is equipped with the composite trough, the composite trough is including locating the ring channel of actuating lever surface and the spacing groove of being connected with the ring channel, the locking rod is connected with the inserted bar, the inserted bar inserts to the composite trough in.
2. The locking device for preventing the misoperation of the medium-high voltage switch cabinet according to claim 1, wherein the limiting groove is a triangular groove.
3. The misoperation-preventive locking device for the medium-high voltage switch cabinet as claimed in claim 1, wherein the locking rod comprises a square rod section and a cylindrical rod section connected to one end of the square rod section.
4. The locking device for preventing the misoperation of the medium-high voltage switch cabinet as claimed in claim 1, wherein the locking rod is provided with a spring, and the locking rod compresses the spring when sliding and realizes the resetting through the elastic force of the spring.
5. The locking device for preventing the misoperation of the medium-high voltage switch cabinet as claimed in claim 1, wherein the inserted rod is a cylindrical rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222428400.5U CN218215050U (en) | 2022-09-14 | 2022-09-14 | Anti-misoperation locking device for medium-high voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222428400.5U CN218215050U (en) | 2022-09-14 | 2022-09-14 | Anti-misoperation locking device for medium-high voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218215050U true CN218215050U (en) | 2023-01-03 |
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ID=84633562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222428400.5U Active CN218215050U (en) | 2022-09-14 | 2022-09-14 | Anti-misoperation locking device for medium-high voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218215050U (en) |
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2022
- 2022-09-14 CN CN202222428400.5U patent/CN218215050U/en active Active
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