Centrally installed switchgear convenient for operating circuit breaker

Abstract

The utility model relates to a centrally installed switchgear convenient for operating a circuit breaker. The centrally installed switchgear comprises a cabinet body and a circuit breaker moving mechanism. An instrument chamber, a circuit breaker chamber and a cable chamber are arranged in the cabinet body; the circuit breaker moving mechanism comprises a base, a lead screw, a moving seat and a circuit breaker; the base is arranged in the circuit breaker chamber; the lead screw is horizontally and rotatably arranged on the base and is arranged along the moving direction of the circuit breaker; the movable seat sleeves the lead screw in a threaded manner; the circuit breaker is mounted on the moving seat; an insertion hole is formed in the outer side end part of the lead screw; a circuit breaker joint is arranged in the cable chamber, and one end of the circuit breaker joint extends into the circuit breaker chamber and directly faces the circuit breaker; and the other end of the circuit breaker joint is provided with a plurality of copper bar interfaces. According to the utility model, the circuit breaker can be quickly and effectively operated to be switched on or switched off.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical cabinet processing technical field, especially a kind of middle-placed cabinet of circuit breaker convenient operation. BACKGROUND

[0002] Middle-placed cabinet, full name is armored type move middle-placed metal-enclosed switchgear, it is a kind of high-voltage distribution equipment for power system.Its structure is divided into three layers: the upper layer is busbar and instrument room (isolated from each other), middle layer is circuit breaker room, lower layer is cable room.Because circuit breaker is located in middle layer, therefore, armored type move middle-placed metal-enclosed switchgear, is called middle-placed cabinet for short.

[0003] Circuit breaker needs to be installed in circuit breaker room, and the volume and mass of circuit breaker in middle-placed cabinet are relatively large generally, and staff is difficult to operate to realize the conduction or disconnection of circuit breaker, and it is also difficult to push drawer to realize the closing or disconnection of circuit breaker using the drawer structure in prior art.

[0004] Therefore, a kind of middle-placed cabinet of circuit breaker convenient operation is needed to be researched, and the quality is relatively lighter. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of middle-placed cabinet of circuit breaker convenient operation, can be quickly and effectively operated circuit breaker, makes it connect or disconnect.

[0006] To achieve the above-mentioned utility model purposes, a kind of middle-placed cabinet of circuit breaker convenient operation is provided, including cabinet and circuit breaker moving mechanism;

[0007] Instrument room, circuit breaker room and cable room are provided in the cabinet;

[0008] The opening of the instrument room, the circuit breaker room and cable room is provided with cabinet door;

[0009] The circuit breaker moving mechanism includes base, lead screw, moving seat and circuit breaker;

[0010] The base is arranged in circuit breaker room;

[0011] The lead screw is horizontally rotatably arranged on the base, and is arranged along the moving direction of circuit breaker;

[0012] The moving seat is threadedly sleeved on the lead screw;

[0013] The circuit breaker is installed on the moving seat;

[0014] The outside end of the lead screw is provided with a jack;

[0015] The cable chamber is provided with a circuit breaker joint, one end of the circuit breaker joint extends into the circuit breaker chamber and faces the circuit breaker, and the other end of the circuit breaker joint is provided with a plurality of copper bar interfaces for facilitating connection with external copper bars.

[0016] Preferably, a guide rod is further arranged on the base, and the moving seat is slidingly arranged on the guide rod.

[0017] Further, the guide rod is provided with a stopper rod near both ends thereof.

[0018] Still further, a buffer spring is sleeved on the inner end of the guide rod, and the buffer spring is located between the stopper rod and the inner end of the guide rod.

[0019] Preferably, the base is provided with a roller on each side thereof.

[0020] The base is provided with a waist-shaped through hole on each side of the front end thereof.

[0021] A handle is slidingly inserted into the waist-shaped through hole, one end of the handle extends into the front end of the base, a horizontal plate is slidingly arranged in the front end of the base, one end of the horizontal plate extends out of one side of the base, and the horizontal plate is fixedly connected with the handle.

[0022] Preferably, the cable chamber is further provided with a grounding switch mechanism, the grounding switch mechanism comprises a first transmission shaft, a connecting seat, a first connecting rod, a first vertical rod, a second connecting rod, a support, a rotating shaft and a grounding knife.

[0023] The first transmission shaft is horizontally arranged at the bottom of the cable chamber, and one end of the first transmission shaft is connected with a driving motor for driving the first transmission shaft to rotate.

[0024] The connecting seat is fixedly sleeved on the first transmission shaft.

[0025] One end of the first connecting rod is fixed on the connecting seat.

[0026] The first vertical rod is provided with a first connecting portion at each end thereof, the lower end of the first vertical rod is hingedly connected with the first connecting rod through the first connecting portion, the upper end of the first vertical rod is hingedly connected with the second connecting rod through the first connecting portion, and the first vertical rod always remains vertical.

[0027] One end of the second connecting rod is fixedly sleeved on the rotating shaft.

[0028] The support is vertically fixed in the cable chamber, and the rotating shaft is horizontally arranged on the support.

[0029] The grounding knife is fixedly sleeved on the rotating shaft.

[0030] The adapter is connected to the circuit breaker, and a grounding head of the adapter is opposite to the grounding knife.

[0031] Preferably, the bracket is further provided with at least two reset modules, and the two reset modules are symmetrically arranged on the bracket.

[0032] The mounting seat is hinged to the bracket, one end of the spring is connected to the mounting seat, and the other end of the spring is connected to the connecting plate.

[0033] Further, the grounding switch mechanism further comprises a manual mechanism, and the manual mechanism comprises a second transmission shaft, a third connecting rod, a second vertical rod and a fourth connecting rod.

[0034] The second transmission shaft is horizontally arranged in the cable chamber and located above the first transmission shaft, and the second transmission shaft is parallel to the first transmission shaft.

[0035] The outer end of the second transmission shaft extends out of the outer wall of the cable chamber, and the outer end of the second transmission shaft is provided with a plug-in hole.

[0036] One end of the third connecting rod is fixedly sleeved on the second transmission shaft.

[0037] The second vertical rod is hinged to the third connecting rod and the fourth connecting rod through the two second connecting portions, and the second vertical rod always remains vertical.

[0038] The fourth connecting rod is fixed to the connecting seat.

[0039] Preferably, the first transmission shaft and the second transmission shaft are polygonal in cross section.

[0040] Preferably, the bracket is provided with a protective shell, and the protective shell covers the rotating shaft, the reset module and the grounding knife.

[0041] Compared with the prior art, the utility model discloses a kind of conveniently operated circuit breaker's centrally installed cabinet, which has the following advantages:

[0042] (1) by setting circuit breaker moving mechanism in circuit breaker chamber, by operating lead screw on circuit breaker moving mechanism, so that mobile seat moves, the movement of circuit breaker can be quickly and effectively realized, and the connection or disconnection of circuit breaker connector is realized;

[0043] (2) by setting grounding switch mechanism in cable chamber, personal safety is protected, misoperation is prevented to close drawer switch to cause motor to run, and discharge is carried out to line when power failure is overhauled and misoperation is prevented to send electricity to overhauled line;

[0044] (3) simple structure, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 A structure schematic view of the cubicle for conveniently operating the circuit breaker in the embodiment;

[0046] Figure 2 A structure schematic view of the internal structure of the cubicle for conveniently operating the circuit breaker in the embodiment;

[0047] Figure 3 A structure schematic view of the circuit breaker moving mechanism in the embodiment;

[0048] Figure 4 A structure schematic view of the base in the circuit breaker moving mechanism in the embodiment;

[0049] Figure 5 A structure schematic view of the grounding switch mechanism in the embodiment Figure 1 ;

[0050] Figure 6 A structure schematic view of the grounding switch mechanism in the embodiment Figure 2 . DETAILED DESCRIPTION

[0051] The utility model will be further explained in combination with the drawings and specific embodiments.

[0052] As Figure 1 and Figure 2 shown, a cubicle for conveniently operating the circuit breaker, comprising a cabinet body and a circuit breaker moving mechanism.

[0053] The cabinet body is provided with an instrument room 1, a circuit breaker room 2 and a cable room 3; the openings of the instrument room 1, the circuit breaker room 2 and the cable room are all provided with cabinet doors 4.

[0054] As Figure 3 shown, the circuit breaker moving mechanism comprises a base 5, a lead screw 6, a moving seat 7 and a circuit breaker 8; the base 5 is arranged in the circuit breaker room 2; the lead screw 6 is horizontally rotatably arranged on the base 5 and is arranged along the moving direction of the circuit breaker 8; the moving seat 7 is threadedly sleeved on the lead screw 6; the circuit breaker 8 is installed on the moving seat 7; the outer end of the lead screw 6 is provided with a jack (not shown in the figure), so that the staff outside can rotate the lead screw 6 by tools, thereby making the moving seat 7 move linearly on the lead screw 6.

[0055] In the embodiment, as Figure 4 shown, the base 5 is further provided with a guide rod 9, and the moving seat 7 is slidingly arranged on the guide rod 9, effectively ensuring that the moving seat 7 does not shake when moving, and ensuring that the circuit breaker 8 can be accurately inserted into the circuit breaker joint.

[0056] Further, the guide rod 9 is provided with a stopper 10 near both ends, which effectively limits the stroke of the moving seat 7 to avoid damaging the circuit breaker socket by the circuit breaker 8.

[0057] Further, the guide rod 9 is provided with a stopper 10 near both ends, which effectively limits the stroke of the moving seat 7 to avoid damaging the circuit breaker socket by the circuit breaker 8.

[0058] In the embodiment, as shown in Figure 4 both sides of the base 5 are provided with a roller 12; the front end of the base 5 is provided with a waist-shaped through hole 13; the handle 14 is slidably inserted into the waist-shaped through hole 13; one end of the handle 14 extends into the front end of the base 5; the horizontal plate 15 is slidably arranged in the front end of the base 5; one end of the horizontal plate 15 extends out of one side of the base 5; and the horizontal plate 15 is fixedly connected with the handle 14; in this way, when the base 5 needs to be moved out of the circuit breaker chamber 2, the handle 14 is horizontally moved in the waist-shaped through hole 13 to make one end of the horizontal plate 15 extend into the front end of the base 5, so that the base 5 can be moved outwards, which is convenient for the maintenance of the staff.

[0059] As shown in Figure 2 the cable chamber 3 is provided with a circuit breaker connector 16; one end of the circuit breaker connector 16 extends into the circuit breaker chamber 3 and faces the circuit breaker 8; and the other end of the circuit breaker connector 16 is provided with a plurality of copper bar interfaces 28 for connecting external copper bars.

[0060] In the embodiment, the circuit breaker 8 is a vacuum circuit breaker, which has strong arc extinguishing capacity, short arc burning time, small contact electric wear and long electric life.

[0061] When the circuit breaker 8 needs to be moved, a tool is inserted into the hole in the outer end of the lead screw 6, the lead screw 6 is rotated, the moving seat 7 moves inward, until the circuit breaker 8 is connected with the circuit breaker connector, the guide rod 9 guides the moving seat to avoid shaking, and the stoppers at both ends effectively limit the stroke of the moving seat to ensure that the circuit breaker accurately and properly connects with the circuit breaker connector.

[0062] In the embodiment, as shown in Figure 2 and Figure 5As shown, the cable chamber 3 is also provided with a grounding switch mechanism, which comprises a first transmission shaft 17, a connecting seat 18, a first connecting rod 19, a first vertical rod 20, a second connecting rod 21, a support 22, a rotating shaft 23 and a grounding knife 24; the first transmission shaft 17 is horizontally rotatably arranged at the bottom of the cable chamber 3, and one end of the first transmission shaft 17 is connected with a driving motor 25 for driving the first transmission shaft 17 to rotate; the connecting seat 18 is fixedly sleeved on the first transmission shaft 17; one end of the first connecting rod 19 is fixed on the connecting seat 18; the first vertical rod 20 is provided with a first connecting part 26 at both ends, the lower end of the first vertical rod 20 is hingedly connected with the first connecting rod 19 through the first connecting part, and the upper end of the first vertical rod 20 is hingedly connected with the second connecting rod 21 through the first connecting part, and the first vertical rod 20 always remains vertical; one end of the second connecting rod 21 is fixedly sleeved on the rotating shaft 23; the support 22 is vertically fixed in the cable chamber 3, and the rotating shaft 23 is horizontally rotatably arranged on the support 22; the grounding knife 24 is fixedly sleeved on the rotating shaft 23; the circuit breaker 8 is connected with a switching piece 27, and the grounding head of the switching piece 27 faces the grounding knife 24; in this way, when the circuit breaker 8 is disconnected, the driving motor 25 is started, the first transmission shaft 17 rotates, the connecting seat 18 rotates, and under the transmission of the first connecting rod 19, the first vertical rod 20 and the second connecting rod 21, the rotating shaft 23 rotates, so that the grounding knife 24 connects the grounding head on the switching piece 27, which protects personal safety, prevents the drawer switch from being mistakenly closed to cause the motor to run, and discharges the line and prevents the line from being mistakenly powered on during power failure maintenance.

[0063] Further, in the embodiment, as shown in Figure 5 and Figure 6 , the support 22 is also provided with at least two reset modules, and the two reset modules are symmetrically arranged on the support 22, the reset module comprises a mounting seat 29, a spring 30 and a connecting plate 31; the mounting seat 29 is hingedly connected on the support 22, one end of the spring 30 is connected with the mounting seat 29, and the other end is connected with the connecting plate 31, and the connecting plate 31 is fixedly sleeved on the rotating shaft 23; in this way, when it is needed to disconnect the grounding knife 24, the driving motor 25 is turned off, the spring 30 drives the rotating shaft 23 to rotate to restore the initial position, and the grounding knife 24 is reset. In the embodiment, the number of the reset modules is two.

[0064] In the embodiment, as shown in Figure 5As shown, the grounding switch mechanism further comprises a manual mechanism, the manual mechanism comprising a second transmission shaft 32, a third connecting rod 33, a second vertical rod 34 and a fourth connecting rod 35; the second transmission shaft 32 is horizontally arranged in the cable chamber 3 and above the first transmission shaft 17, and the second transmission shaft 32 is parallel to the first transmission shaft 17; the outer end of the second transmission shaft 32 extends out of the outer wall of the cable chamber 3, and the outer end of the second transmission shaft 32 is provided with a plug hole (not shown in the figure) for facilitating the rotation of the second transmission shaft 32; one end of the third connecting rod 33 is fixedly sleeved on the second transmission shaft 32; the second vertical rod 34 is provided with a second connecting part 36 at both ends, and the second vertical rod 34 is hingedly connected with the third connecting rod 33 and the fourth connecting rod 35 through the two second connecting parts 36 respectively, and the second vertical rod 34 always remains vertical; the fourth connecting rod 35 is fixed on the connecting seat 18; in this way, when the driving motor 25 fails, the staff inserts a tool into the plug hole and rotates the second transmission shaft 32, and under the driving of the third connecting rod 33, the second vertical rod 34 and the fourth connecting rod 35, the first transmission shaft 17 rotates to move the first vertical rod 20 in the vertical direction, and finally drives the grounding knife to close.

[0065] In the embodiment, the first transmission shaft 17 and the second transmission shaft 32 are polygonal in cross section, so as to prevent the sleeved and fixed parts from slipping.

[0066] In the embodiment, the bracket 22 is provided with a protective shell (not shown in the figure), which covers the rotating shaft, the reset module and the grounding knife 24 and plays a protective role.

[0067] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A cubicle for facilitating operation of a circuit breaker, characterized in that The circuit breaker moving mechanism comprises a base, a lead screw, a moving seat and a circuit breaker. The cabinet is internally provided with an instrument room, a circuit breaker room and a cable room. The openings of the instrument room, the circuit breaker room and the cable room are respectively provided with cabinet doors. The circuit breaker moving mechanism comprises a base, a lead screw, a moving seat and a circuit breaker. The base is arranged in the circuit breaker room. The lead screw is horizontally arranged on the base and arranged along the moving direction of the circuit breaker. The moving seat is threadedly sleeved on the lead screw. The circuit breaker is arranged on the moving seat. The outer end of the lead screw is provided with a socket. The cable room is internally provided with a circuit breaker connector, one end of which extends into the circuit breaker room and faces the circuit breaker. The other end of the circuit breaker connector is provided with a plurality of copper bar interfaces.

2. A unit substation with easy operating circuit breakers as claimed in claim 1, wherein, The base is further provided with a guide rod, and the moving seat is slidingly arranged on the guide rod.

3. A unit substation with easy operating circuit breakers as claimed in claim 2, wherein, The guide rod is provided with a stopper near both ends thereof.

4. A unit substation with easy operating circuit breakers as claimed in claim 3, wherein, A buffer spring is sleeved on the inner end of the guide rod.

5. A cubicle with conveniently operated circuit breakers according to any one of claims 1 to 4, characterized in that The base is provided with rollers on both sides thereof. Waist-shaped through holes are horizontally arranged on both sides of the front end of the base. A handle is slidingly inserted into the waist-shaped through holes, one end of the handle extending into the front end of the base.

6. A cubicle with easy operating circuit breakers according to any of claims 1-4, characterized in that, A horizontal plate is slidingly arranged in the front end of the base, one end of the horizontal plate extending out of one side of the base, and the horizontal plate is fixedly connected with the handle. The cable room is further provided with a grounding switch mechanism, which comprises a first transmission shaft, a connecting seat, a first connecting rod, a first vertical rod, a second connecting rod, a support, a rotating shaft and a grounding knife. The first transmission shaft is horizontally arranged at the bottom of the cable room, and one end of the first transmission shaft is connected with a driving motor for driving the first transmission shaft to rotate. The connecting seat is fixedly sleeved on the first transmission shaft. One end of the first connecting rod is fixedly connected with the connecting seat. Both ends of the first vertical rod are provided with first connecting portions, the lower end of the first vertical rod being hingedly connected with the first connecting rod through the first connecting portion, and the upper end of the first vertical rod being hingedly connected with the second connecting rod through the first connecting portion, and the first vertical rod always remains vertical. One end of the second connecting rod is fixedly sleeved on the rotating shaft. The support is vertically fixed in the cable room, and the rotating shaft is horizontally arranged on the support. The grounding knife is fixedly sleeved on the rotating shaft.

7. A unit substation with easy operating circuit breakers as claimed in claim 6, wherein, The circuit breaker is connected with an adapter, and the grounding head of the adapter faces the grounding knife. The support is further provided with at least two reset modules, which are symmetrically arranged on the support.

8. A unit substation for facilitating operation of circuit breakers as recited in claim 6, wherein, The reset module comprises a mounting seat, a spring and a connecting plate. The mounting seat is hingedly connected with the support, one end of the spring is connected with the mounting seat, and the other end of the spring is connected with the connecting plate. The grounding switch mechanism further comprises a manual mechanism, which comprises a second transmission shaft, a third connecting rod, a second vertical rod and a fourth connecting rod. The second transmission shaft is horizontally arranged in the cable room and above the first transmission shaft, and parallel to the first transmission shaft. The outer end of the second transmission shaft extends out of the outer wall of the cable chamber, and the outer end of the second transmission shaft is provided with a plug hole; One end of the third connecting rod is fixedly sleeved on the second transmission shaft; Both ends of the second vertical rod are provided with second connecting parts, and the second vertical rod is hingedly connected with the third connecting rod and the fourth connecting rod through the two second connecting parts, and the second vertical rod always remains vertical; The fourth connecting rod is fixed on the connecting seat.

9. A unit substation for facilitating operation of circuit breakers as recited in claim 8, wherein, The cross sections of the first transmission shaft and the second transmission shaft are polygonal structures.

10. A unit substation for facilitating operation of circuit breakers as recited in claim 7, wherein, The bracket is provided with a protective shell covering the rotating shaft, the reset module and the grounding knife.

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