CN218274424U

CN218274424U - Interlocking protection frame of high-voltage vacuum circuit breaker

Info

Publication number: CN218274424U
Application number: CN202222175326.0U
Authority: CN
Inventors: 席云彦; 李干臣; 崔卫卫
Original assignee: Xuchang Zhongheng Electric Co ltd
Current assignee: Xuchang Zhongheng Electric Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-01-10
Anticipated expiration: 2032-08-18

Abstract

The utility model relates to a chain fender bracket of high-pressure vacuum circuit breaker, the utility model discloses effectively solved current chain protection device can not influence the transmission of circuit with vacuum circuit breaker complete firm in connection, the connection structure who does not use receives the influence of dust or other impurity easily, can not play the problem of good conductivity when using. This chain fender bracket of high pressure vacuum circuit breaker is through first adjusting part, drive assembly and second adjusting part's setting, enable the second adjusting part to the opposite direction of first adjusting part removal through drive assembly, thereby make and to have a vacuum circuit breaker intercommunication at every turn, guarantee vacuum circuit breaker's safe handling, the effect of chain protection has been played vacuum circuit breaker, and the equal vertical movement of first adjusting part and second adjusting part, enable first connecting piece and second connecting piece and vacuum circuit breaker's the position of being connected and contact completely, good connection effect has been guaranteed.

Description

Interlocking protection frame of high-voltage vacuum circuit breaker

Technical Field

The utility model belongs to the technical field of vacuum circuit breaker, concretely relates to chain fender bracket of high-pressure vacuum circuit breaker.

Background

Vacuum circuit breaker, because the insulating medium in its arc extinguishing medium and arc extinguishing back contact gap all is the high vacuum and is named, it has small, light in weight, be applicable to frequent operation and the advantage that the arc extinguishing need not overhaul, it is comparatively popularized to use in the distribution network, can supply industrial and mining enterprises, the power plant, the usefulness of protection and control as electrical equipment in the transformer substation, the specially adapted requires oilless, the use place of few maintenance and frequent operation, the circuit breaker can dispose in put the cabinet in, double-deck cabinet, regard as control and protection high-voltage electrical equipment in the fixed cabinet and use, when using vacuum circuit breaker, also can use its protection interlocking device, current high-pressure vacuum circuit breaker interlocking protection device structure is comparatively simple, unable effectual assurance is when a circuit breaker during operation, another circuit breaker keeps the state of disconnection, thereby there is certain potential safety hazard.

The device controls a first strong electromagnet and a second strong electromagnet to be electrified to release a unlike magnetic field through a controller to overcome the defect that elastic potential energy of a first spring is closely attracted, so that a second closing assembly moves upwards to be clamped with a second closing mechanism, the second vacuum circuit breaker starts to work, and meanwhile, the first vacuum circuit breaker is always in a disconnected state, so that the device can effectively ensure that when one circuit breaker works, the other circuit breaker automatically keeps the disconnected state, and potential safety hazards of the conventional vacuum circuit breaker protection device are avoided; but the device adopts the mode of magnetism to inhale when disconnection and connection vacuum circuit breaker, this kind of connected mode uncertain factor is more, can not guarantee that vacuum circuit breaker connects completely or breaks off, and adopt the transmission mode of lever to control the connection structure of both sides, make its motion trajectory be the arc, can not be with vacuum circuit breaker complete connection firmly, influence the transmission of circuit, and vacuum circuit breaker just needs switching connection state after long-time the use, the connection structure who does not use receives the influence of dust or other impurity easily, thereby can not play good electric conductive property when using.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming the defect of prior art, the utility model provides a chain fender bracket of high-pressure vacuum circuit breaker, this chain fender bracket of high-pressure vacuum circuit breaker enable the second adjusting part to the opposite direction of first adjusting part removal through drive assembly to the messenger can only have a vacuum circuit breaker intercommunication at every turn, guarantees vacuum circuit breaker's safe handling, has played the effect of chain protection to vacuum circuit breaker.

The interlocking protection frame for the high-voltage vacuum circuit breaker comprises a circuit breaker base, wherein a driving assembly is arranged inside the circuit breaker base, a first connecting piece is arranged on the top end, provided with a first adjusting assembly, of the movable end of the driving assembly, a first protection assembly is connected to one side of the first adjusting assembly in a transmission mode, a second adjusting assembly is connected to the other end, connected with the transmission assembly and the transmission assembly in a transmission mode, of the other side of the first adjusting assembly in the transmission mode, a second protecting assembly is connected to one side, far away from the first adjusting assembly, of the second adjusting assembly in the transmission mode, and a second connecting piece is arranged on the top end of the second adjusting assembly.

The technical scheme has the beneficial effects that:

(1) The high-voltage vacuum circuit breaker interlocking protection frame has the advantages that through the arrangement of the first adjusting assembly, the transmission assembly and the second adjusting assembly, the driving assembly can control the first adjusting assembly to move up and down, so that the first connecting piece is connected with or disconnected from a vacuum circuit breaker above the first adjusting assembly, the second adjusting assembly can move towards the direction opposite to the direction of the first adjusting assembly through the transmission assembly, only one vacuum circuit breaker can be communicated each time, the safe use of the vacuum circuit breaker is ensured, the interlocking protection effect on the vacuum circuit breaker is achieved, in addition, the first adjusting assembly and the second adjusting assembly can vertically move, the first connecting piece and the second connecting piece can be completely contacted with the connecting part of the vacuum circuit breaker, and the good connecting effect is ensured;

(2) This chain fender bracket of high pressure vacuum circuit breaker passes through the setting of first protection component and second protection component, can drive first protection component and second protection component during first regulation component and second regulation component activity, first protection component or second protection component that first connecting piece or second connecting piece correspond when not using can cover above that, thereby play the guard action to it, prevent that dust or other debris from falling on first connecting piece or second connecting piece, thereby can guarantee that first connecting piece and second connecting piece can keep good electric conductive property when using.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the internal structure of the circuit breaker base of the present invention;

fig. 3 is a schematic, exploded view of fig. 2 in accordance with the present invention;

fig. 4 is a schematic view of the first adjusting assembly according to the present invention;

fig. 5 is a schematic view of the first protection assembly of the present invention.

In the figure: 1. a circuit breaker base; 2. a first connecting member; 3. a second connecting member; 4. an electric push rod; 5. a first toothed bar; 6. a first fixing frame; 7. a rack; 8. a fixed mount; 9. a protection plate; 10. a first gear shaft; 11. a second gear shaft; 12. a drive rack; 13. a second fixing frame; 14. a second rack bar; 15. provided is a clamping plate.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be described in detail with reference to the accompanying drawings 1 to 5.

The embodiment provides a high-voltage vacuum circuit breaker interlocking protection frame, as shown in the attached drawing, which comprises a circuit breaker base 1, wherein two vacuum circuit breakers are arranged on the upper surface of the circuit breaker base 1, the two vacuum circuit breakers respectively correspond to a first connecting piece 2 and a second connecting piece 3, a driving assembly is arranged inside the circuit breaker base 1, the driving assembly comprises an electric push rod 4, the bottom end of the electric push rod 4 is fixedly connected to the inner bottom wall of the circuit breaker base 1, the electric push rod 4 is electrically connected with an external control unit through a wire, a first adjusting assembly is arranged at the movable end of the driving assembly, the top end of the first adjusting assembly is provided with the first connecting piece 2, the first adjusting assembly comprises a first toothed bar 5 and a first fixing frame 6, the first toothed bar 5 is fixedly connected to the movable end of the electric push rod 4 and penetrates through the inside of the first fixing frame 6, the lower surface of a first fixing frame 6 is fixedly connected with a connecting plate which is fixedly connected inside a circuit breaker base 1, a first connecting piece 2 is fixedly connected at the top end of a first threaded rod 5, one side of a first adjusting component is in transmission connection with a first protection component which comprises a rack 7, a fixing frame 8 and a protection plate 9, one side of the first fixing frame 6 is clamped with a first gear shaft 10, the first gear shaft 10 is meshed with the first threaded rod 5, the side surface of the first gear shaft 10 is meshed with the rack 7, the fixing frame 8 is fixedly connected at the top end of the rack 7, the fixing frame 8 is sleeved outside the first connecting piece 2, the top parts of the two sides of the fixing frame 8 are fixedly connected with inclined baffles, the protection plate 9 is hinged to the two sides of the upper surface of the fixing frame 8, the two protection plates 9 are symmetrically arranged and cover the top parts of the first connecting piece 2, the inclined baffles can play a supporting role in supporting the protection plates 9 at the two sides, one side of the lower surface of the protection plate 9 is fixedly connected with a clamping plate 15, the clamping plate 15 is abutted against the inner side wall of the fixing frame 8, the protection plates 9 on two sides can be kept in a horizontal state, so that the first connecting piece 2 below is protected, when the first connecting piece 2 moves upwards, the racks 7 in transmission connection with the first corrugated rod 5 synchronously move downwards, so that the protection plates 9 on two sides can be jacked open by the first connecting piece 2, the bottom end of the first connecting piece 2 can be clamped with the clamping plate 15 when the first connecting piece 2 moves upwards at a constant speed, so that the protection plates 9 on two sides are unfolded and attached to the inclined baffle, when the first connecting piece 2 moves downwards, the racks 7 synchronously move upwards, the bottom end of the first connecting piece 2 can be abutted against the clamping plate 15 again, the protection plates 9 on two sides are reunited, and the protection plates 9 on two sides can be completely covered above the first connecting piece 2 after the first connecting piece 2 completely falls down, so that a protection effect is achieved;

the other side of the first adjusting component is in transmission connection with a transmission component, the other end of the transmission component is in transmission connection with a second adjusting component, the transmission component comprises a second gear shaft 11 and a transmission rack 12, the outsides of the rack 7 and the transmission rack 12 are both sleeved with a limiting block, the limiting block is fixedly connected inside the circuit breaker base 1 through a connecting plate, the rack 7 and the transmission rack 12 can slide in the limiting block, the limiting block plays a role in supporting and limiting the rack 7 and the transmission rack 12, the movable limit length of the rack 7 and the transmission rack 12 is the longest extension length of the movable end of the electric push rod 4, and the rack 7 and the transmission rack 12 are still in the limiting block when moving to the limit position, so that the situation of falling cannot occur, the second gear shaft 11 is clamped on one side of the first fixing frame 6 far away from the first gear threaded rod 5 and is meshed with the first gear shaft 5, one end of the transmission rack 12 is meshed with the second gear shaft 11, the other end of the transmission rack 12 is in transmission connection with the second adjusting component, the second adjusting component comprises a second threaded rod 13 and a second threaded rod 14, one side of the second fixing frame 13 close to the first connecting frame 2 is connected with the second adjusting component through a well-known high-pressure circuit breaker base, and the top end of the second adjusting component is connected with the second adjusting component, and the second connecting structure of the second fixing frame 13, the second adjusting component, and the high-pressure circuit breaker base 3, the second protection component is arranged outside the second connecting piece 3, one side, far away from the first connecting piece 2, of the second fixing frame 13 is connected with the first gear shaft 10 in a clamped mode and is in transmission connection with the second protection component through the first gear shaft 10, the first protection component and the second protection component are symmetrically arranged by taking the vertical center line of the circuit breaker base 1 as a symmetry axis, when the first connecting piece 2 moves upwards to be connected with the vacuum circuit breaker, the second connecting piece 3 moves downwards under the action of the transmission component and the second adjusting component, the first protection component can move downwards, the first connecting piece 2 can open the protection plate 9 towards two sides, the second protection component outside the second connecting piece 3 can move upwards, the protection plate 9 on the second protection component can be abutted to the second connecting piece 3 through the clamping plate 15 to cover the upper side of the second connecting piece, when the first connecting piece 2 is connected with the circuit breaker, the first protection component is opened and falls down without affecting connection, the second connecting piece 3 is disconnected with the circuit breaker, the second connecting piece 3 can protect the second connecting piece 3, the two can be in a protection mode of circular operation, and the circuit breaker can be protected repeatedly.

In summary, the interlocking protection frame for the high-voltage vacuum circuit breaker comprises the following use steps:

1. in an initial state, the second connecting piece 3 is connected with a corresponding circuit breaker above, the electric push rod 4 is in a retracted state, the second protection component is in an opened state and falls below, the first connecting piece 2 is in a falling state, and the first protection component covers above the first connecting piece 2;

2. when another circuit breaker needs to be replaced, the movable end of the electric push rod 4 is controlled to extend out, the first connecting piece 2 moves upwards, the second connecting piece 3 moves downwards through the transmission assembly, so that the circuit breaker corresponding to the upper side is disconnected, meanwhile, the first protection assembly moves downwards and is unfolded, the first connecting piece 2 is ejected out, the second protection assembly moves upwards, and the second protection assembly covers the upper side of the second connecting piece 3 after being contacted with the second connecting piece 3;

3. after the first connecting piece 2 is connected with the corresponding circuit breaker, the second connecting piece 3 is disconnected with the corresponding circuit breaker certainly, and the connection states of the first connecting piece 2 and the second connecting piece 3 with the circuit breaker can be adjusted by controlling the electric push rod 4, so that the operation is more convenient.

The above description is only for the purpose of illustration, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims

1. Chain fender bracket of high-pressure vacuum circuit breaker, including circuit breaker base (1), its characterized in that: the inside of circuit breaker base (1) is provided with drive assembly, drive assembly's expansion end is provided with first adjusting part and first adjusting part's top is provided with first connecting piece (2), one side transmission of first adjusting part is connected with first protection component, the other end transmission that the other side transmission of first adjusting part is connected with transmission component and transmission component is connected with second adjusting part, one side transmission that first adjusting part was kept away from to second adjusting part is connected with second protection component, second adjusting part's top is provided with second connecting piece (3).

2. The interlocking protection frame for the high-voltage vacuum circuit breaker according to claim 1, characterized in that: the driving assembly comprises an electric push rod (4), and the bottom end of the electric push rod (4) is fixedly connected to the inner bottom wall of the circuit breaker base (1).

3. The interlocking protection frame for the high-voltage vacuum circuit breaker according to claim 2, characterized in that: first adjusting part includes first tooth line pole (5) and first mount (6), first tooth line pole (5) fixed connection just wears to establish the inside at first mount (6) at the expansion end of electric putter (4), the lower fixed surface of first mount (6) is connected with connecting plate and connecting plate fixed connection in the inside of circuit breaker base (1), first connecting piece (2) fixed connection is on the top of first tooth line pole (5).

4. The interlocking protection frame for the high-voltage vacuum circuit breaker according to claim 3, characterized in that: first protection component includes rack (7), mount (8) and guard plate (9), one side joint of first mount (6) has first gear shaft (10) and first profile bar (5) meshing, the side meshing of first gear shaft (10) has rack (7) and mount (8) fixed connection on the top of rack (7), mount (8) cup joint the outside at first connecting piece (2), the both sides of mount (8) upper surface all articulate and have guard plate (9) and two guard plate (9) to be the symmetry and set up and cover the top at first connecting piece (2).

5. The interlocking protection frame for the high-voltage vacuum circuit breaker according to claim 4, characterized in that: the transmission assembly comprises a second gear shaft (11) and a transmission rack (12), the second gear shaft (11) is connected to one side, away from the first gear shaft (10), of the first fixing frame (6) in a clamped mode and meshed with the first threaded rod (5), one end of the transmission rack (12) is meshed with the second gear shaft (11), and the other end of the transmission rack is in transmission connection with the second adjusting assembly.

6. The interlocking protection frame for the high-voltage vacuum circuit breaker according to claim 5, characterized in that: the second adjusting component comprises a second fixing frame (13) and a second threaded rod (14), one side of the second fixing frame (13) close to the first connecting piece (2) is clamped with the other end of a second gear shaft (11) and the other end of the second gear shaft (11) are meshed with a transmission rack (12), the second fixing frame (13) is fixedly connected inside the circuit breaker base (1) through a connecting plate, and the second threaded rod (14) penetrates through the inside of the second fixing frame (13) and is fixedly connected to the top end of the second connecting piece (3).

7. The interlocking protection frame for the high-voltage vacuum circuit breaker according to claim 6, characterized in that: the structure of the second protection component is the same as that of the first protection component, the second protection component is arranged outside the second connecting piece (3), and a first gear shaft (10) is clamped on one side, away from the first connecting piece (2), of the second fixing frame (13) and is in transmission connection with the second protection component through the first gear shaft (10).