CN112421466A - Switching device for fixed contact baffle of centrally-mounted handcart type switch cabinet - Google Patents
Switching device for fixed contact baffle of centrally-mounted handcart type switch cabinet Download PDFInfo
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- CN112421466A CN112421466A CN202011353226.1A CN202011353226A CN112421466A CN 112421466 A CN112421466 A CN 112421466A CN 202011353226 A CN202011353226 A CN 202011353226A CN 112421466 A CN112421466 A CN 112421466A
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- switch cabinet
- chassis
- type switch
- handcart type
- front frame
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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
- H02B11/24—Shutters or guards
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- Power Engineering (AREA)
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Abstract
The invention discloses an opening and closing device of a fixed contact baffle of a centrally-mounted handcart type switch cabinet, which comprises a chassis body and a chassis front frame, wherein the chassis front frame is provided with a front chassis baffle; the chassis front frame is positioned right in front of the chassis body; the front end and the rear end of the left side and the right side of the chassis body are respectively pivoted with a track roller; a transversely distributed insulating partition plate is vertically arranged on the rear side of the top of the chassis body; the left side and the right side of the insulating partition plate are respectively provided with a push rod; the two push rods are opposite to the operating rods of the two original static contact baffles on the left side and the right side of the middle handcart type switch cabinet; the left end and the right end of the front surface of the chassis front frame are respectively provided with a handle; a crank hole is arranged at the center of the front side of the front frame of the chassis; a crank is inserted into the crank hole; the crank is connected with the front end of a lead screw. The invention can help operators to conveniently and reliably open the baffle of the fixed contact of the upper opening and the lower opening of the middle handcart type switch cabinet, thereby saving precious manpower and improving the working efficiency.
Description
Technical Field
The invention relates to the technical field of operation and maintenance of a 10kV switch cabinet of a transformer substation, in particular to an opening and closing device for a fixed contact baffle of a middle handcart type switch cabinet.
Background
At present, in a transformer substation, a 10kV load outgoing line mostly adopts a middle handcart type switch cabinet, for a transformer operation and maintenance worker, when some switching operation tasks are performed on the middle handcart type switch cabinet, for example, when a bus is turned to be repaired, a ground wire needs to be sealed and hung in a bus coupler (i.e., bus connection), a PT (i.e., voltage transformer) interval or a possible incoming side interval, and for safety and cautious consideration, the ground wire (i.e., ground wire) generally needs to be sealed and hung on static contacts at two sides of an upper opening and a lower opening of the bus coupler or the bus coupler trolley interval (specifically, depending on the situation, a baffle of the static contact needs to be opened before the static contact is sealed and hung), but the existing matched grounding trolley generally can only seal and hang the ground wire on the static contact at the bus side, cannot seal and hang the ground wire on the upper static contact and the lower static contact simultaneously, and cannot meet the requirements of the operation and.
In addition, the appearance of the existing matched grounding trolley is similar to that of a matched common switch trolley on a middle handcart type switch cabinet, and the grounding trolley can be mistaken for the switch trolley, so that the problem that the bus side is sealed is omitted, and danger is caused during power transmission.
Therefore, at present, many power transformation operation and maintenance personnel do not use the existing matched grounding trolley in the bus transfer maintenance work, but use a manual mode (by means of a common tool) to seal and hang the ground wires on the two sides of the upper and lower openings at intervals of the female connection switch or the female connection disconnecting link trolley, so that in the specific operation, two people manually use the insulating rods to respectively correspondingly push the operating rods of the upper and lower fixed contact baffles of the middle handcart type switch cabinet, and simultaneously symmetrically and uniformly exert force to normally open the baffles of the upper and lower fixed contacts in the switch cabinet body, and after the baffle is opened, a third person needs to be equipped to test electricity and carry out the operation of sealing and hanging the ground wires on the upper and lower opening fixed contacts, so that the operation is strictly speaking completed by the combination of four operation and maintenance personnel, thereby greatly wasting manpower and being very inconvenient, and the situation is contradictory to the situation that only 2 operation and maintenance personnel (1 guardian and 1 operator) are generally arranged during normal switching operation.
Disclosure of Invention
The invention aims to provide an opening and closing device for a fixed contact baffle of a centrally-mounted handcart type switch cabinet, aiming at the technical defects in the prior art.
Therefore, the invention provides an opening and closing device for a fixed contact baffle of a centrally-mounted handcart type switch cabinet, which comprises a chassis body and a chassis front frame;
the chassis front frame is positioned right in front of the chassis body;
the front end and the rear end of the left side and the right side of the chassis body are respectively pivoted with a track roller;
an insulating partition board which is transversely distributed is vertically arranged on the rear side of the top of the chassis body;
the left side and the right side of the insulating partition plate are respectively provided with a push rod which is transversely distributed;
the two push rods are opposite to the operating rods of the two original static contact baffles on the left side and the right side of the middle handcart type switch cabinet;
the left end and the right end of the front surface of the chassis front frame are respectively provided with a handle;
a crank hole is arranged at the center of the front side of the chassis front frame;
a crank is inserted into the crank hole;
the crank is connected with the front end of a lead screw which is longitudinally distributed;
the chassis body is internally provided with a lead screw connecting cavity which is longitudinally distributed;
the outer surface of the screw rod is provided with threads which are in threaded connection with internal threads arranged on the inner side of the screw rod connecting cavity;
six ground wire hanging operation openings are distributed on the insulating partition plate 1 at equal intervals;
the ground wire hanging operation opening is a hole corresponding to the upper and lower port fixed contacts of the middle handcart type switch cabinet;
and the ground wire hanging operation opening is used for hanging the ground wire on the upper and lower port static contacts of the middle handcart type switch cabinet after the two original static contact baffles on the left side and the right side of the middle handcart type switch cabinet are opened by the two push rods.
Wherein, the handle is U-shaped or U-shaped.
Wherein, a plurality of lightening holes are arranged on the chassis body;
the push rod is cylindrical;
the push rod is an insulating push rod.
Two longitudinally distributed rails are correspondingly arranged at the positions corresponding to the two rail rollers on the middle handcart type switch cabinet;
the track roller is in sliding fit with the track.
Wherein the chassis body is in a cuboid shape;
the chassis front frame is in a cuboid shape.
Compared with the prior art, the switching device for the fixed contact baffle of the middle handcart type switch cabinet has the advantages that the structural design is scientific, the switching device can help operators to conveniently and reliably open the baffle of the fixed contact at the upper opening and the lower opening of the middle handcart type switch cabinet, and meanwhile, after the baffle is made, the operators can conveniently hang the ground wire on the fixed contact at the upper opening and the lower opening of the middle handcart type switch cabinet, so that precious manpower is saved, the working efficiency is improved, and the switching device has great production practice significance.
Drawings
Fig. 1 is a front view of an opening and closing device of a fixed contact baffle of a centrally-mounted handcart type switch cabinet provided by the invention;
fig. 2 is a left side view of an opening and closing device of a fixed contact baffle of a centrally-mounted handcart type switch cabinet provided by the invention;
fig. 3 is a top view of an opening and closing device of a fixed contact baffle of a centrally-mounted handcart type switch cabinet provided by the invention.
Fig. 4 is a top perspective view of the switching device of the stationary contact baffle of the centrally-mounted handcart type switch cabinet, when the insulating partition plate is pushed backwards into the centrally-mounted handcart type switch cabinet for a certain distance.
Detailed Description
In order to make the technical means for realizing the invention easier to understand, the following detailed description of the present application is made in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
In addition, it should be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the term "mounted" and the like should be interpreted broadly, and may be, for example, either fixedly mounted or detachably mounted.
The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.
Referring to fig. 1 to 4, the invention provides an opening and closing device for a fixed contact baffle of a middle handcart type switch cabinet, which comprises a chassis body 6 and a chassis front frame 9;
the chassis front frame 9 is positioned right ahead of the chassis body 6 (the chassis front frame and the chassis body are not fixedly connected);
the front end and the rear end of the left side and the right side of the chassis body 6 are respectively pivoted (namely rotatably connected) with a track roller 5;
the rear side of the top of the chassis body 6 is vertically provided with a transversely distributed insulating partition plate 1;
the left side and the right side of the insulating partition board 1 are respectively provided with a push rod 2 which is transversely distributed;
the two push rods 2 are arranged opposite to the operating rods (each operating rod is arranged on each baffle) of the two original static contact baffles on the left side and the right side of the middle handcart type switch cabinet (for example, the operating rods are arranged right ahead);
the left end and the right end of the front surface of the chassis front frame 9 are respectively provided with a handle 3;
a crank hole 4 is arranged at the front center of the chassis front frame 9;
a crank 10 is inserted into the crank hole 4;
the crank 10 is connected (e.g. clamped or screwed) with the front end of a longitudinally distributed lead screw 7;
a lead screw connecting cavity 8 which is longitudinally distributed is arranged inside the chassis body 6;
the outer surface of the screw rod 7 is provided with threads which are in threaded connection with internal threads arranged on the inner side of the screw rod connecting cavity 8.
It should be noted that, for the original static contact baffles on the left and right sides of the existing middle handcart type switch cabinet, when the operating rod on the baffle is pushed, the baffle will be opened, so that the shielded static contacts (i.e. the static contacts at the upper and lower ports) are exposed.
In the invention, the internal threads of the crank 10 and the crank hole 4 are in threaded connection.
In the present invention, the handle 3 is in the form of a U or "U".
In the invention, the shape and size of the lead screw connecting cavity 8 are correspondingly matched with the shape and size of the lead screw 7.
In the invention, six ground wire hanging operation openings 11 are distributed on the insulating partition plate 1 at equal intervals.
It should be noted that the ground wire hooking operation opening 11 is a hole corresponding to the upper and lower static contacts (three static contacts, specifically A, B, C three-phase static contacts, are respectively provided at the upper and lower ends of the switch cabinet) of the middle handcart type switch cabinet, and after the baffle is opened, the ground wire can be sealed on the static contacts (i.e., the ground wire is hooked) through the six holes.
In the invention, two longitudinally distributed rails are correspondingly arranged at the positions corresponding to the two rail rollers 5 on the middle handcart type switch cabinet;
the track roller 5 is in sliding fit with the track.
In the invention, in particular, a plurality of lightening holes 12 are arranged on the chassis body 6; the lightening holes 12 are arranged on the chassis body 6, and the weight of the device is lightened on the premise of not influencing the structural strength.
In the present invention, the push rod 2 is cylindrical in shape.
In the present invention, the chassis body 6 is in a rectangular parallelepiped shape.
In the present invention, the chassis front frame 9 is shaped like a rectangular parallelepiped.
In the present invention, in a specific implementation, the push rod 2 is an insulating push rod.
In the invention, the chassis body can be designed in a light weight manner, and the weight of the device is reduced by methods such as hole digging and the like;
in the invention, the lead of the lead screw can be properly increased, and the speed of the shaking-in device for opening the baffle can be increased;
in the invention, the shape of the push rod 2 can be optimized in the concrete realization, so as to be matched with the operating rod on the baffle of the existing static contact, and reduce the resistance when the baffle is opened.
In the invention, the opened middle handcart type switch cabinet can be a ZS1 type 10kV middle handcart type switch cabinet produced by building door ABB switch company, and the invention is used for opening a static contact baffle of a ZS1 type 10kV middle handcart type switch cabinet produced by building door ABB switch company.
In order to more clearly understand the technical solution of the present invention, the following describes the working principle of the present invention.
The invention relates to a universal rocking car device. When the bus-bar switching maintenance operation of the middle handcart type switch cabinet is carried out, the sectional switch and the sectional disconnecting link of the middle handcart type switch cabinet are pulled out, an operator places the device in the middle handcart type switch cabinet and locks the chassis front frame at a test position. Utilize general dolly crank to shake into the device (push promptly), shake into the in-process, the push rod that the device both sides set up, slowly correspond the action bars that promotes in the handcart-type cubical switchboard both sides baffle (the baffle of mouth static contact about promptly), thereby open the baffle of the upper and lower static contact of putting in handcart-type cubical switchboard, the operating personnel just so can directly test the electricity operation, perhaps directly hang (tear) the operation of ground wire on the mouth static contact about putting in handcart-type cubical switchboard, and need not additionally increase the manpower, just can accomplish this operation task, operation efficiency and convenience have been improved. Namely, only one person is needed to complete the operation, and three persons do not need to be configured as in the prior art.
On the contrary, after the device is pulled out forwards through the trolley crank, the baffle of the static contact can be closed.
Compared with the prior art, the switching device of the fixed contact baffle of the middle handcart type switch cabinet has the following beneficial effects:
1. the invention can help the operator to conveniently and quickly open the baffle of the upper and lower port static contacts of the switch cabinet without additionally increasing manpower, can complete the operation task, and improves the operation efficiency and convenience.
2. The device provided by the invention keeps a sufficient safety distance with possible electrified equipment all the time in the pushing process, so that the operation safety of operation and maintenance personnel is ensured, and electric shock is prevented.
3. The device has the advantages of low cost, time and labor saving, safety and reliability.
Compared with the prior art, the switching device for the fixed contact baffle of the middle handcart type switch cabinet, which is provided by the invention, has a scientific structural design, can help an operator to conveniently and reliably open the baffle of the fixed contact at the upper opening and the lower opening of the middle handcart type switch cabinet, and can conveniently hang a ground wire on the fixed contact at the upper opening and the lower opening of the middle handcart type switch cabinet after the baffle is paid out, so that precious manpower is saved, the working efficiency is improved, and the switching device has great production practice significance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. An opening and closing device for a fixed contact baffle of a centrally-mounted handcart type switch cabinet is characterized by comprising a chassis body (6) and a chassis front frame (9);
the chassis front frame (9) is positioned right in front of the chassis body (6);
the front end and the rear end of the left side and the right side of the chassis body (6) are respectively pivoted with a track roller (5);
the rear side of the top of the chassis body (6) is vertically provided with a transversely distributed insulating partition plate (1);
the left side and the right side of the insulating partition plate (1) are respectively provided with a push rod (2) which is transversely distributed;
the two push rods (2) are arranged opposite to the operating rods of the two original static contact baffles on the left side and the right side of the middle handcart type switch cabinet;
the left end and the right end of the front surface of the chassis front frame (9) are respectively provided with a handle (3);
a crank hole (4) is arranged at the front center of the chassis front frame (9);
a crank (10) is inserted into the crank hole (4);
the crank (10) is connected with the front end of a lead screw (7) which is longitudinally distributed;
the inside of the chassis body (6) is provided with a lead screw connecting cavity (8) which is longitudinally distributed;
the outer surface of the screw rod (7) is provided with threads which are in threaded connection with internal threads arranged on the inner side of the screw rod connecting cavity (8);
six ground wire hanging operation openings (11) are distributed on the insulating partition plate (1) at equal intervals;
the ground wire hanging operation opening (11) is a hole corresponding to the upper and lower port static contacts of the middle handcart type switch cabinet;
and the ground wire hanging operation opening (11) is used for hanging the ground wire on the upper and lower port static contacts of the middle handcart type switch cabinet after the two original static contact baffles on the left and right sides of the middle handcart type switch cabinet are opened by the two push rods (2).
2. The on-off device of the fixed contact baffle of the middle-placed handcart type switch cabinet according to claim 1, wherein the handle (3) is U-shaped or U-shaped.
3. The switchgear of stationary contact baffle of middle-placed handcart type switchgear as claimed in claim 1, wherein chassis body (6) is provided with a plurality of lightening holes (12);
the push rod (2) is cylindrical;
the push rod (2) is an insulating push rod.
4. The switching device of the fixed contact baffle of the middle handcart type switch cabinet according to claim 1, wherein two longitudinally distributed rails are correspondingly arranged at the positions corresponding to the two rail rollers (5) on the middle handcart type switch cabinet;
the track roller (5) is in sliding fit with the track.
5. The switchgear of stationary contact baffle of the middle-placed handcart type switchgear as claimed in any one of claims 1 to 4, wherein the chassis body (6) is in the shape of a rectangular parallelepiped;
the chassis front frame (9) is in a rectangular parallelepiped shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011353226.1A CN112421466A (en) | 2020-11-27 | 2020-11-27 | Switching device for fixed contact baffle of centrally-mounted handcart type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011353226.1A CN112421466A (en) | 2020-11-27 | 2020-11-27 | Switching device for fixed contact baffle of centrally-mounted handcart type switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112421466A true CN112421466A (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011353226.1A Pending CN112421466A (en) | 2020-11-27 | 2020-11-27 | Switching device for fixed contact baffle of centrally-mounted handcart type switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112421466A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259207A (en) * | 2013-05-26 | 2013-08-21 | 国家电网公司 | Multifunctional dolly for 10kV and 35kV dolly-type switch cabinet |
| KR20140072751A (en) * | 2012-12-05 | 2014-06-13 | 엘에스산전 주식회사 | Operating apparatus of solid insulated load break switch |
| CN105140811A (en) * | 2015-08-24 | 2015-12-09 | 国家电网公司 | Special vehicle for switch cabinet phase-detecting experiment |
| CN205670650U (en) * | 2016-06-06 | 2016-11-02 | 国网河南省电力公司周口供电公司 | A kind of manual electricity testing platform of 10kV wheelbarrow switch |
| CN205846553U (en) * | 2016-06-14 | 2016-12-28 | 国家电网公司 | A kind of 35kV high-tension switch cabinet insulation barrier dolly |
| CN107749585A (en) * | 2017-11-29 | 2018-03-02 | 国家电网公司 | Intermediate switchgear cabinet isolation baffle plate separating tool |
| CN111293590A (en) * | 2018-12-10 | 2020-06-16 | 国网辽宁省电力有限公司锦州供电公司 | Insulating baffle for direct electricity testing of 10kV high-voltage switch cabinet |
-
2020
- 2020-11-27 CN CN202011353226.1A patent/CN112421466A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140072751A (en) * | 2012-12-05 | 2014-06-13 | 엘에스산전 주식회사 | Operating apparatus of solid insulated load break switch |
| CN103259207A (en) * | 2013-05-26 | 2013-08-21 | 国家电网公司 | Multifunctional dolly for 10kV and 35kV dolly-type switch cabinet |
| CN105140811A (en) * | 2015-08-24 | 2015-12-09 | 国家电网公司 | Special vehicle for switch cabinet phase-detecting experiment |
| CN205670650U (en) * | 2016-06-06 | 2016-11-02 | 国网河南省电力公司周口供电公司 | A kind of manual electricity testing platform of 10kV wheelbarrow switch |
| CN205846553U (en) * | 2016-06-14 | 2016-12-28 | 国家电网公司 | A kind of 35kV high-tension switch cabinet insulation barrier dolly |
| CN107749585A (en) * | 2017-11-29 | 2018-03-02 | 国家电网公司 | Intermediate switchgear cabinet isolation baffle plate separating tool |
| CN111293590A (en) * | 2018-12-10 | 2020-06-16 | 国网辽宁省电力有限公司锦州供电公司 | Insulating baffle for direct electricity testing of 10kV high-voltage switch cabinet |
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Application publication date: 20210226 |