CN110707580B - In put cabinet circuit breaker and overhaul blocking device - Google Patents
In put cabinet circuit breaker and overhaul blocking device Download PDFInfo
- Publication number
- CN110707580B CN110707580B CN201910800857.4A CN201910800857A CN110707580B CN 110707580 B CN110707580 B CN 110707580B CN 201910800857 A CN201910800857 A CN 201910800857A CN 110707580 B CN110707580 B CN 110707580B
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- rotating shaft
- sleeve
- rotating
- clamping
- fixed sleeve
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
Abstract
The invention provides an overhauling locking device for a circuit breaker of a centrally installed switchgear, which comprises a clamping part for fixing an operation block in the circuit breaker, a rotating part for controlling the tightness of the clamping part through rotation, and a locking part for locking the rotating part. Through rotating the rotatable parts, can carry out elasticity control with the joint part to it is fixed with the operation piece interlock in the circuit breaker, then lock the rotatable parts with locking part, make other people can not operate, thereby prevent unexpected the emergence.
Description
Technical Field
The invention relates to an auxiliary dismounting device, in particular to an overhauling and locking device for a circuit breaker of a centrally installed switchgear.
Background
The centrally installed switchgear is fully called as metal armored centrally installed withdrawable switchgear. The indoor complete set of distribution equipment belongs to a high-voltage distribution equipment, the highest working voltage of which is 3.6/7.2/12kV, and is a three-phase alternating-current 50Hz single-bus segmented system or double-bus segmented system. The device is used for receiving and distributing network power of 3.6-12kV, and carrying out control protection, monitoring and measurement on a power circuit. The central switch cabinet is mainly used for power plant, power transmission of small and medium-sized generators, power receiving and power transmission of secondary substation of power system, power distribution of industrial and mining enterprises and institutions, starting of large-scale high-voltage motors and the like.
The applicant has found that the prior art has at least the following technical problems:
when the centrally installed switchgear encounters the faults or daily maintenance, the circuit breaker needs to be disconnected, so that the circuit is in a power-off state and then is operated, a trolley and a rocker arm are needed in the process to rotate an operation block of the centrally installed switchgear, but the centrally installed switchgear is too many in certain times, and the trolley is not enough in quantity; the trolley is separated from the centrally installed switchgear after being operated by the centrally installed switchgear, the rocker arm is left on the centrally installed switchgear, and the centrally installed switchgear can be put through again by misoperation of other people, so that danger is caused.
Disclosure of Invention
The invention aims to provide an overhauling and locking device for a circuit breaker of a centrally installed switchgear, which solves the problems that an operating trolley cannot leave the centrally installed switchgear and a rocker arm of a user cannot be operated by others by mistake in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an overhauling locking device for a circuit breaker of a centrally installed switchgear, which comprises a clamping part for fixing an operation block in the circuit breaker, a rotating part for controlling the tightness of the clamping part through rotation, and a locking part for locking the rotating part.
Optionally or preferably, the rotating part comprises a rocking arm and a rotating shaft connected with the rocking arm, the rotating shaft is coaxially arranged in the center of the fixed sleeve, the rocking arm is vertically connected with one end of the rotating shaft, the other end of the rotating shaft is connected with and drives an adjusting block through threads, the adjusting block is of a polygonal structure, and each surface is correspondingly connected with and drives a clamping sliding block; the clamping component comprises a fixed sleeve and a plurality of clamping slide blocks which are arranged in the fixed sleeve and can translate in the fixed sleeve, and the number of the clamping slide blocks corresponds to the number of the side surfaces of the operation block; the locking part is a rotating sleeve which is connected with the fixed sleeve and can rotate relatively, and the rotating sleeve is coaxial with the rotating shaft and is relatively fixedly connected with the rocking arm.
Optionally or preferably, the fixed sleeve is a horizontal hollow cylindrical structure, one end of the fixed sleeve is a clamping end of which the inner wall is provided with a clamping sliding block, the other end of the fixed sleeve is a connecting end for connecting a rotating part, the connecting end and the middle position of the fixed sleeve are provided with a supporting part for the rotating shaft to pass through and support the rotating shaft, and the rotating shaft is provided with a limiting part for limiting the rotating shaft relative to the supporting part in the axial direction.
Optionally or preferably, the inner wall of the clamping end of the fixing sleeve is of a polygonal structure corresponding to the number of the clamping blocks, each surface of the fixing sleeve is an inclined surface with a thick outer surface and a thin inner surface, the outer side surface of the clamping slide block contacting with the inner wall of the clamping end is also of an inclined surface structure, and the fixing sleeve is thin outer surface and thick inner surface and is matched with the inner wall of the clamping end of the fixing sleeve in an inclined angle mode.
Optionally or preferably, the inner wall of each clamping sliding block is provided with a limiting groove connected with the contact surface of the adjusting block, each corresponding contact surface of the adjusting block is provided with an elastic sheet groove, and a spring sheet for supporting is arranged in each elastic sheet groove.
Optionally or preferably, an annular groove surrounding the fixed sleeve in a circle is formed in the outer wall of the connecting end of the fixed sleeve, an annular protrusion matched with the annular groove is formed in the inner wall of the rotating sleeve, a flange plate a is arranged on the fixed sleeve, a flange plate B matched with the flange plate a is arranged at one end, close to the fixed sleeve, of the rotating sleeve, and locking holes for hanging of the five-prevention padlock are formed in the flange plate a and the flange plate B.
Optionally or preferably, an external thread is arranged at one end of the rotating shaft connected with the adjusting block, and a through hole and an internal thread matched with the external thread are arranged on the adjusting block.
Optionally or preferably, the supporting component includes an end baffle arranged at the end of the connecting end and a middle baffle arranged at the middle of the fixing sleeve, through holes for the rotating shaft to pass through and support the rotating shaft for limiting are formed in the centers of the end baffle and the middle baffle, the limiting component is two stoppers arranged on the rotating shaft, the two stoppers are respectively arranged on two sides of the rotating shaft relative to the end baffle, and the distance between the two stoppers is equal to that between the end baffles.
Alternatively or preferably, the stopper is fixedly connected with the rotating shaft or integrally formed with the rotating shaft.
Optionally or preferably, an auxiliary fixing clamping sleeve head is sleeved outside the fixing sleeve, and the clamping sleeve head is matched with the jack structure of the breaker of the centrally installed switchgear.
Based on the technical scheme, the embodiment of the invention can at least produce the following technical effects:
according to the maintenance locking device for the circuit breaker of the centrally installed switchgear, the tightness of the clamping component can be controlled by rotating the rotating component, so that the operating block in the circuit breaker is occluded and fixed, then the rotating component is locked by the locking component, and other people can not operate the rotating component, so that accidents are prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the assembled condition of the service lockout of the embodiment of the present invention;
FIG. 2 is a schematic illustration of a service lockout in a disassembled state in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of the rotating member and the clamping slider according to the embodiment of the present invention;
FIG. 4 is a schematic view illustrating a state where the rotating member and the engaging slider are separated from each other according to another embodiment of the present invention;
FIG. 5 is a sectional view of the service lockout of an embodiment of the present invention in the assembled state.
In the figure: in the figure: 1. fixing the sleeve; 2. rotating the sleeve; 3. clamping the sliding block; 4. an adjusting block; 5. a rotating shaft; 6. a rocking arm; 7. a clamping sleeve head; 8. a spring plate; 11. an annular groove; 12. a flange A; 13. an end baffle; 14. a middle baffle; 21. an annular projection; 22. a flange B; 23. a rocker arm hole; 31. a limiting groove; 41. a spring plate groove; 51. and a stop block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 1-5:
the invention provides an overhauling locking device for a circuit breaker of a centrally installed switchgear, which comprises a clamping part for fixing an operation block in the circuit breaker, a rotating part for controlling the tightness of the clamping part through rotation, and a locking part for locking the rotating part. Through rotating the rotatable parts, can carry out elasticity control with the joint part to it is fixed with the operation piece interlock in the circuit breaker, then lock the rotatable parts with locking part, make other people can not operate, thereby prevent unexpected the emergence.
As an alternative embodiment, the rotating part comprises a rocking arm 6 and a rotating shaft 5 connected with the rocking arm, the rotating shaft 5 is coaxially arranged in the center of the fixed sleeve 1, the rocking arm 6 is vertically connected with one end of the rotating shaft 5, the other end of the rotating shaft 5 is connected with and drives an adjusting block 4 through threads, the adjusting block 4 is of a polygonal structure, and each surface is correspondingly connected with and drives one clamping slide block 3; the clamping component comprises a fixed sleeve 1 and a plurality of clamping slide blocks 3 which are arranged in the fixed sleeve and can translate in the fixed sleeve, and the number of the clamping slide blocks 3 corresponds to the number of the side surfaces of the operation block; the locking part is a rotating sleeve 2 which is connected with the fixed sleeve 1 and can rotate relatively, and the rotating sleeve 2 is coaxially arranged with the rotating shaft 5 and is relatively fixedly connected with the rocking arm 6.
The conventional operation piece in the circuit breaker is a cuboid structure, namely, four sides (without excluding other number of sides, such as a triangle or a hexagon in cross section) are provided, so that the technical scheme of the application is selected to be four sides, and the number of the sides of the adjusting block 4, the number of the inner wall surfaces of the fixed sleeve 1 and the number of the clamping sliding blocks 3 are four correspondingly.
As an optional implementation manner, the fixing sleeve 1 is a horizontal hollow cylindrical structure, one end of the fixing sleeve is a clamping end of which the inner wall is provided with the clamping slide block 3, the other end of the fixing sleeve is a connecting end for connecting a rotating part, the connecting end and the middle position of the fixing sleeve 1 are provided with a supporting part for the rotating shaft 5 to pass through and support, and the rotating shaft 5 is provided with a limiting part for limiting the rotating shaft 5 relative to the supporting part in the axial direction.
The supporting part limits the rotating shaft 5 in the radial direction, and the limiting part limits the rotating shaft 5 in the axial direction, so that the rotating shaft 5 cannot move up and down and left and right and can only rotate in a limited area, and the adjusting block 4 is driven to horizontally move.
As an optional implementation manner, the inner wall of the clamping end of the fixing sleeve 1 is a polygonal structure corresponding to the number of the clamping blocks, each surface is an inclined surface with a thick outer surface and a thin inner surface, that is, the surface is thickest near the port, the thickness of the surface is smaller in the network, and the surface is a plane with a fixed inclination angle, the outer side surface of the clamping slide block 3 contacting with the inner wall of the clamping end is also an inclined surface structure, and the structure is thin outer surface and thick inner surface and is matched with the inclination angle of the inner wall of the clamping end of the fixing sleeve 1.
Because each surface of the fixed sleeve 1 is an inclined surface with thick outside and thin inside, the outer side surface of the clamping slide block 3 contacting with the inner wall of the clamping end is also in an inclined surface structure, but the inner side surface is kept horizontal; make joint slider 3 along with the in-process that adjusting block 4 outwards removed, progressively shrink under the effect on two inclined planes and carry out the centre gripping to each face of operation piece, nevertheless joint slider 3's inner wall is still level for the centre gripping is laminated more and is firm.
As an optional implementation manner, the inner wall of each clamping sliding block 3 is provided with a limiting groove 31 engaged with the contact surface of the adjusting block 4, each corresponding contact surface of the adjusting block 4 is provided with a spring plate groove 41, and a spring plate 8 for supporting is arranged in each spring plate groove 41.
The width of the limiting groove 31 of the clamping sliding block 3 is matched with the thickness of the adjusting block 4, so that the clamping sliding block 3 and the adjusting block 4 are tightly connected in the horizontal direction, a spring piece 8 is arranged in a spring piece groove 41 of the adjusting block 4, and the spring piece 8 plays a supporting role in the vertical direction of the clamping sliding block 3 and the adjusting block 4; especially, under the condition that does not carry out the centre gripping, joint slider 3 and regulating block 4 are great in the ascending clearance of vertical direction, and spring leaf 8 can effectively support and prevent to rock for stable in structure.
As an optional implementation manner, an annular groove 11 is formed around the outer wall of the connecting end of the fixed sleeve 1, an annular protrusion 21 matched with the annular groove 11 is formed on the inner wall of the rotating sleeve 2, a flange a12 is arranged on the fixed sleeve 1, a flange B22 matched with the flange a12 is arranged at one end of the rotating sleeve 2 close to the fixed sleeve 1, and locking holes for hanging five-prevention padlocks are formed in both the flange a12 and the flange B22. The rotating sleeve 2 is provided with a rocker arm hole 23 which limits the rocking arm 6.
The rotating sleeve 2 can be assembled and spliced by adopting a plurality of parts and is sleeved on the fixed sleeve 1, the rocking arm hole 23 limits the rocking arm 6, so that the rocking arm and the rotating sleeve are integrated and rotate together, the rotating sleeve can limit the rocking arm 6, the annular groove 11 is matched and connected with the annular bulge 21, and the rotating sleeve 2 cannot move in the axial direction and the radial direction and can only rotate along with the rotating shaft 5 and the rocking arm; the five-prevention padlock is hung behind the lock holes on the flange A12 and the flange B22, the rotating sleeve 2 cannot rotate relative to the fixed sleeve 1, and therefore the rocker arm 6 and the rotating shaft 5 connected with the rocker arm can not rotate any more, and therefore the rocker arm can be prevented from being operated by other people, and danger is avoided.
As an optional implementation mode, an external thread is arranged at one end of the rotating shaft 5 connected with the adjusting block 4, and a through hole is formed in the adjusting block 4 and is provided with an internal thread matched with the external thread. The rotating shaft 5 can not horizontally move in the rotating process, and the adjusting block 4 can only be moved left and right through threads.
As an alternative embodiment, the supporting component includes an end baffle 13 disposed at an end of the connecting end and a middle baffle 14 disposed at a middle of the fixing sleeve 1, through holes for the rotating shaft 5 to pass through and support and limit are formed in centers of the end baffle 13 and the middle baffle 14, the limiting component is two stoppers 51 disposed on the rotating shaft 5, the two stoppers 51 are respectively disposed on two sides of the rotating shaft 5 opposite to the end baffle 13, and a distance between the two stoppers 51 is equal to that of the end baffle 13. Two stoppers 51 may be provided on both sides of the middle barrier 14 as long as the movement thereof on the axis is restricted.
As an alternative embodiment, the stop 51 is fixedly connected to the shaft 5 or is formed integrally therewith.
The stop blocks 51 can be integrally formed with the rotating shaft 5, and the two assembly structures of the stop blocks are embedded on the rotating shaft 5 between the two stop blocks 51; or the baffle plate can be of an integral structure, and the two stop blocks 51 are sleeved on the rotating shaft 5 by lantern rings and then are welded or connected by pins.
As an optional embodiment, a clamping sleeve head 7 for auxiliary fixation is sleeved outside the fixed sleeve 1, and the clamping sleeve head 7 is matched with the jack structure of the breaker of the centrally installed switchgear. The jack of putting the cabinet circuit breaker in the sleeve chuck head 7 and links up, can play support and guard action to fixed sleeving 1, prevents that whole maintenance locking device from causing the damage to the operation piece because of gravity or external force.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention.
Claims (7)
1. The utility model provides a put cabinet circuit breaker and overhaul blocking device which characterized in that: the circuit breaker comprises a clamping component used for fixing an operation block in the circuit breaker, a rotating component used for controlling tightness of the clamping component through rotation, and a locking component used for locking the rotating component;
the rotating part comprises a rocking arm and a rotating shaft connected with the rocking arm, the rotating shaft is coaxially arranged in the center of the fixed sleeve, the rocking arm is vertically connected to one end of the rotating shaft, the other end of the rotating shaft is connected with and drives an adjusting block through threads, the adjusting block is of a polygonal structure, and each surface is correspondingly connected with and drives a clamping sliding block; the clamping component comprises a fixed sleeve and a plurality of clamping slide blocks which are arranged in the fixed sleeve and can translate in the fixed sleeve, and the number of the clamping slide blocks corresponds to the number of the side surfaces of the operation block; the locking part is a rotating sleeve which is connected with the fixed sleeve and can rotate relatively, and the rotating sleeve is coaxial with the rotating shaft and is fixedly connected with the rocking arm relatively
The fixed sleeve is of a transverse hollow cylindrical structure, one end of the fixed sleeve is a clamping end with the inner wall provided with a clamping sliding block, the other end of the fixed sleeve is a connecting end connected with the rotating part, the connecting end and the middle part of the fixed sleeve are provided with supporting parts for the rotating shaft to penetrate through and support the rotating shaft, and the rotating shaft is provided with a limiting part for limiting the rotating shaft relative to the supporting parts in the axial direction;
the fixed sleeve is externally sleeved with an auxiliary fixed clamping sleeve head, and the clamping sleeve head is matched with a jack structure of the breaker of the middle-placed cabinet.
2. The mid-cabinet circuit breaker service lockout of claim 1 wherein: the fixed sleeving's joint end inner wall is the polygon structure who corresponds with joint piece quantity, and each face all is outer thick interior thin inclined plane, the joint slider also is the inclined plane structure with the lateral surface of joint end inner wall contact, and its structure is outer thin interior thick and matches with fixed sleeving's joint end inner wall inclination.
3. The mid-cabinet circuit breaker service lockout of claim 2 wherein: the inner wall of each clamping sliding block is provided with a limiting groove connected with the contact surface of the adjusting block, each corresponding contact surface of the adjusting block is provided with an elastic sheet groove, and each elastic sheet groove is internally provided with a spring sheet for supporting.
4. The mid-cabinet circuit breaker service lockout of claim 3, wherein: the outer wall of the connecting end of the fixed sleeve is provided with an annular groove surrounding the connecting end of the fixed sleeve in a circle, the inner wall of the rotating sleeve is provided with an annular bulge matched with the annular groove, the fixed sleeve is provided with a flange plate A, one end of the rotating sleeve, which is close to the fixed sleeve, is provided with a flange plate B matched with the flange plate A, and the flange plate A and the flange plate B are respectively provided with a lock hole for hanging the five-prevention padlock.
5. The mid-cabinet circuit breaker service lockout of claim 4, wherein: the adjusting block is provided with a through hole and an internal thread matched with the external thread.
6. The mid-cabinet circuit breaker service lockout of claim 5, wherein: the supporting component comprises an end baffle arranged at the end of the connecting end and a middle baffle arranged at the middle of the fixing sleeve, through holes for the rotating shaft to pass through and support the end baffle and the middle baffle are formed in the centers of the end baffle and the middle baffle, the limiting component is two stop blocks arranged on the rotating shaft, the two stop blocks are respectively arranged on two sides of the rotating shaft relative to the end baffle, and the distance between the two stop blocks is equal to that of the end baffle.
7. The mid-cabinet circuit breaker service lockout of claim 6, wherein: the stop block is fixedly connected with the rotating shaft or integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800857.4A CN110707580B (en) | 2019-08-28 | 2019-08-28 | In put cabinet circuit breaker and overhaul blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800857.4A CN110707580B (en) | 2019-08-28 | 2019-08-28 | In put cabinet circuit breaker and overhaul blocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110707580A CN110707580A (en) | 2020-01-17 |
| CN110707580B true CN110707580B (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910800857.4A Active CN110707580B (en) | 2019-08-28 | 2019-08-28 | In put cabinet circuit breaker and overhaul blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110707580B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743837B (en) * | 2021-12-16 | 2024-04-12 | 河南平高电气股份有限公司 | Auxiliary device for assembling circuit breaker sleeve and method for assembling circuit breaker sleeve |
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| CN101409433A (en) * | 2008-12-04 | 2009-04-15 | 天水长城开关厂有限公司 | Soft interlocking mechanism for switch cabinet vehicle-in/out apparatus |
| CN205900364U (en) * | 2016-06-29 | 2017-01-18 | 浙江上美输配电有限公司 | Electronic earthing switch mechanical interlocking of high tension switchgear |
| CN109217159A (en) * | 2018-10-24 | 2019-01-15 | 深圳供电局有限公司 | The interlock of handcart circuit breaker |
| CN210575781U (en) * | 2019-08-28 | 2020-05-19 | 贵州电网有限责任公司 | Device for overhauling and locking breaker of centrally installed switchgear |
| CN210723785U (en) * | 2019-12-04 | 2020-06-09 | 河南寅兴牧业设备有限公司 | Locking device for preventing mistaken opening of electrical cabinet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202930810U (en) * | 2012-11-30 | 2013-05-08 | 施耐德开关（苏州）有限公司 | Emergency brake-separating mechanism for handcart type switch cabinet breaker |
| CN208637914U (en) * | 2018-08-21 | 2019-03-22 | 福建森达电气股份有限公司 | Handle hole interlock for voltage switchgear |
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2019
- 2019-08-28 CN CN201910800857.4A patent/CN110707580B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101409433A (en) * | 2008-12-04 | 2009-04-15 | 天水长城开关厂有限公司 | Soft interlocking mechanism for switch cabinet vehicle-in/out apparatus |
| CN205900364U (en) * | 2016-06-29 | 2017-01-18 | 浙江上美输配电有限公司 | Electronic earthing switch mechanical interlocking of high tension switchgear |
| CN109217159A (en) * | 2018-10-24 | 2019-01-15 | 深圳供电局有限公司 | The interlock of handcart circuit breaker |
| CN210575781U (en) * | 2019-08-28 | 2020-05-19 | 贵州电网有限责任公司 | Device for overhauling and locking breaker of centrally installed switchgear |
| CN210723785U (en) * | 2019-12-04 | 2020-06-09 | 河南寅兴牧业设备有限公司 | Locking device for preventing mistaken opening of electrical cabinet |
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| Publication number | Publication date |
|---|---|
| CN110707580A (en) | 2020-01-17 |
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