Vacuum circuit breaker with isolating switch

Abstract

The utility model relates to the field of vacuum circuit breakers, in particular to a vacuum circuit breaker with an isolating switch, which comprises a box body used for supporting the vacuum circuit breaker. The insulating sleeve assemblies are installed on the rear side of the upper portion of the box body. According to the vacuum circuit breaker with the isolating switch, through the arrangement of the isolating support column, the isolating mechanism and the limiting mechanism, when a power supply needs to be isolated, a handle is pressed to drive a fixed rod and a limiting block in a sleeve to be inserted into a limiting groove in a connecting column to form butt joint, and then the handle is rotated to drive the connecting column and a transmission rod to rotate; when the transmission rod rotates, the insulation column is separated from the isolation contact knife assembly at the front end of the isolation knife and the isolation supporting column, so that the isolation power supply is completed, and through the steps, the daily isolation power supply can rotate only when the handle is pushed to be in butt joint with the interiors of the sleeve and the connecting column, so that daily careless touch is avoided, or other people are prevented from opening and closing the power supply maliciously.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vacuum circuit breaker, concretely relates to a vacuum circuit breaker with disconnecting switch. BACKGROUND

[0002] The vacuum circuit breaker is named because its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum; it has the advantages of small size, light weight, frequent operation and no need of maintenance for arc extinguishing, and is widely used in power distribution networks.

[0003] The existing vacuum circuit breaker needs to isolate the power supply of the vacuum circuit breaker when the safety maintenance of other electrical equipment is carried out, and the existing disconnecting switch on the vacuum circuit breaker needs to be opened manually to isolate the equipment to be maintained from the power supply to ensure the safety of the maintenance personnel, but the interlocking between the vacuum circuit breaker and the disconnecting switch is unstable, or there is no limiting function, so that the normal operation of the vacuum circuit breaker will be affected when the disconnecting switch is opened accidentally by others.

[0004] Therefore, it is necessary to invent a vacuum circuit breaker with a disconnecting switch to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a vacuum circuit breaker with disconnecting switch, when needing isolation power supply, through pressing handle drive fixed rod and the limiting block in the sleeve insert the limiting slot in the connecting column, form butt joint, after rotating handle drive connecting column and transmission rod rotation, when transmission rod rotation, insulating column and the isolation contact knife assembly of the front end of isolation knife separate from the isolation support, thereby complete isolation power supply, through the above steps, daily isolation power supply needs to push handle and sleeve and connecting column internal butt joint, can rotate, this avoids daily accidentally touching, or avoids other people maliciously open and close, to solve the problem that the existing vacuum circuit breaker is proposed in the above background art, when the safety maintenance of other electrical equipment is carried out, the vacuum circuit breaker needs to isolate the power supply, and the disconnecting switch on the existing vacuum circuit breaker needs to be opened manually to isolate the equipment to be maintained from the power supply to ensure the safety of the maintenance personnel, but the interlocking between the vacuum circuit breaker and the disconnecting switch is unstable, or there is no limiting function, so that the normal operation of the vacuum circuit breaker will be affected when the disconnecting switch is opened accidentally by others.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a vacuum circuit breaker with disconnecting switch, comprising a box body for supporting the vacuum circuit breaker;

[0007] The insulating sleeve assembly is arranged on the rear side of the box body, and is used for protecting and isolating the circuit, the box body is fixedly connected with the mounting seat on the two sides of the lower part, the front side of the insulating sleeve assembly is fixedly connected with the current transformer, the front side of the box body is fixedly connected with the isolation support, and the upper end of the isolation support is fixedly connected with the knife switch;

[0008] The isolation mechanism is arranged on the inner side of the box body, and is used for isolating the power supply, and the isolation mechanism comprises a transmission rod, an isolation knife and an isolation contact knife assembly.

[0009] The limiting mechanism is arranged on the right end of the transmission rod, and is used for interlocking and limiting, and the limiting mechanism comprises a connecting column and a sleeve.

[0010] Preferably, the transmission rod is rotatably connected in the box body, the outer part of the transmission rod is fixedly connected with the fixed seat, the inner part of the fixed seat is movably connected with the insulating column, the upper end of the insulating column is fixedly connected with the connecting seat, the isolation knife is movably connected with the connecting seat, and the isolation contact knife assembly is arranged on the front end of the isolation knife.

[0011] Preferably, the rear side of the isolation knife is movably connected with the movable frame, and the movable frame is fixedly connected with the front side of the current transformer.

[0012] Preferably, the connecting column is arranged on the right end of the transmission rod, the inner surface of the connecting column is provided with the limiting groove, the outer part of the connecting column is slidably connected with the sleeve, the right side of the connecting column and the inner part of the sleeve are provided with the spring, the inner part of the sleeve is fixedly connected with the limiting block, the rear side of the sleeve is fixedly connected with the fixed rod, the rear end of the fixed rod is fixedly connected with the handle, and the outer part of the handle is sleeved with the insulating outer sleeve.

[0013] Preferably, the outer part of the connecting column is fixedly connected with the sliding block, and the sleeve is limitedly slid with the connecting column through the sliding block.

[0014] Preferably, the limiting groove in the inner side of the connecting column and the limiting block in the inner part of the sleeve are square, and the limiting block and the limiting groove are used in cooperation.

[0015] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0016] The utility model discloses a setting of isolation pillar, isolation mechanism and limiting mechanism can effectively strengthen the interlock between vacuum circuit breaker and isolation mechanism, avoid other people accidentally contact open isolation mechanism, influence the normal operation of vacuum circuit breaker, when needing to isolate power, through pressing handle drive fixed link and the limiting piece of sleeve in the limiting groove in the connecting column of insertion, form the butt joint, after rotating handle drive connecting column and transmission rod rotate, when transmission rod rotates, and the isolation contact blade assembly of the front end of isolation sword and isolation pillar are separated, thereby complete isolation power, through the above steps, when the daily isolation power needs to push handle and sleeve and connecting column internal butt joint, can rotate, this avoids daily accidentally touch, or avoids other people maliciously open close. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the drawings needed in the embodiment will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the isolation mechanism structure schematic diagram of the utility model;

[0020] Figure 3 It is the isolation sword structure schematic diagram of the utility model;

[0021] Figure 4 It is the limiting mechanism structure schematic diagram of the utility model;

[0022] Figure 5 It is the Figure 4 Structure schematic diagram of A in the utility model.

[0023] Explanation of the drawings:

[0024] 1, box body;2, mounting seat;3, insulating sleeve assembly;4, current transformer;5, isolation pillar;6, sword seat;7, isolation mechanism;701, transmission rod;702, fixed seat;703, insulating column;704, connecting seat;705, isolation sword;706, movable frame;707, isolation contact blade assembly;708, limiting mechanism;7081, connecting column;7082, sliding block;7083, limiting groove;7084, sleeve;7085, spring;7086, limiting block;7087, fixed link;7088, handle;7089, insulating outer sleeve. Specific implementation

[0025] In order to make the technical scheme of the utility model better understood by the skilled in the art, the utility model will be further described in detail below in combination with the drawings.

[0026] The utility model provides a vacuum circuit breaker with disconnecting switch as shown in Figures 1-5 The utility model discloses a vacuum circuit breaker with disconnecting switch as shown in

[0027] Insulating sleeve assembly 3 all are installed on the rear side of the top of box body 1 and are used for protecting and isolating circuit, and the lower sides of box body 1 are fixedly connected with mounting seat 2, and the front side of insulating sleeve assembly 3 is fixedly connected with current transformer 4, and the front sides of box body 1 are all fixedly connected with isolating support 5, and the upper end of isolating support 5 is fixedly connected with knife switch 6.

[0028] Isolating mechanism 7 is arranged on the inner side of box body 1 and is used for isolating power supply, and isolating mechanism 7 includes transmission rod 701, isolating knife 705 and isolating contact blade assembly 707.

[0029] Limiting mechanism 708 is arranged on the right end of transmission rod 701 and is used for interlocking and limiting, and limiting mechanism 708 includes connecting column 7081 and sleeve 7084, when needing to isolate power supply, limiting block 7086 in sleeve 7084 is inserted into limiting slot 7083 in connecting column 7081 by pressing handle 7088 and driving fixed rod 7087, and abutment is formed, then handle 7088 is rotated and drives connecting column 7081 and transmission rod 701 to rotate, when transmission rod 701 rotates, isolating contact blade assembly 707 on the front end of isolating knife 705 and isolating support 5 are separated from insulating column 703, so that isolating power supply is completed, by the above steps, handle 7088 and sleeve 7084 and connecting column 7081 inside are abutted when needing to push handle 7088 and sleeve 7084 and connecting column 7081 inside in daily isolation of power supply, only then can be rotated, so that daily carelessness is touched or other people maliciously open and close are avoided.

[0030] As shown in Figure 1 、 Figure 2 and Figure 3 Transmission rod 701 is rotatably connected in the inside of box body 1, fixed seat 702 is fixedly connected to the outside of transmission rod 701, insulating column 703 is movably connected in the inside of fixed seat 702, connecting seat 704 is fixedly connected to the upper end of insulating column 703, isolating knife 705 is movably connected with connecting seat 704, isolating contact blade assembly 707 is installed on the front end of isolating knife 705, fixed rod 7087 and transmission rod 701 are rotated by handle 7088, when transmission rod 701 rotates, insulating column 703 is pushed, isolating knife 705 and isolating contact blade assembly 707 in front are separated from isolating support 5, so that isolating power supply is realized.

[0031] As shown in Figure 3As shown, the rear side of the isolation knife 705 is movably connected with a movable frame 706, the movable frame 706 is fixedly connected with the front side of the current transformer 4, when the isolation knife 705 is pushed by the insulating column 703, the movable frame 706 in front of the current transformer 4 at the rear side of the isolation knife 705, thereby playing a role in the stability during opening and closing.

[0032] As shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , the connecting column 7081 is installed at the right end of the transmission rod 701, the inner surface of the connecting column 7081 is provided with a limiting groove 7083, the outer surface of the connecting column 7081 is slidably connected with a sleeve 7084, the right side of the connecting column 7081 and the inside of the sleeve 7084 are provided with a spring 7085, the inside of the sleeve 7084 is fixedly connected with a limiting block 7086, the rear side of the sleeve 7084 is fixedly connected with a fixed rod 7087, the rear end of the fixed rod 7087 is fixedly connected with a handle 7088, the outer surface of the handle 7088 is sleeved with an insulating sleeve 7089, by pushing the handle 7088 to drive the fixed rod 7087 and the sleeve 7084, the limiting block 7086 in the sleeve 7084 is inserted into the limiting groove 7083 in the connecting column 7081, the connection is completed, then the handle 7088 can be rotated to drive the insulating column 703 and the isolation knife 705 to realize the isolation of the power supply.

[0033] As shown in Figure 5 , the outer surface of the connecting column 7081 is fixedly connected with a sliding block 7082, the sleeve 7084 is limitedly slid with the connecting column 7081 through the sliding block 7082, during the pushing process of the sleeve 7084 by the handle 7088 and the fixed rod 7087, the sliding block 7082 outside the fixed base 702 is used to play a role in the stability between the fixed base 702 and the sleeve 7084 during sliding.

[0034] As shown in Figure 5 , the limiting groove 7083 in the inner side of the connecting column 7081 and the limiting block 7086 in the inside of the sleeve 7084 are square, the limiting block 7086 is used in cooperation with the limiting groove 7083, the limiting block 7086 and the limiting groove 7083 are square, thereby facilitating the rotation of the handle 7088 to drive the transmission rod 701 after the connection, and the handle 7088 cannot drive the transmission rod 701 after the separation, thereby playing a role in limiting interlocking.

[0035] The utility model discloses a vacuum circuit breaker with isolating switch, which comprises a vacuum circuit breaker body, an isolating mechanism 7, a fixed seat 702, a handle 7088, a fixed rod 7087, a sleeve 7084, a limiting block 7086, a connecting column 7081, a transmission rod 701, an insulating column 703, an isolating knife 705, an isolating support 5 and an isolating contact knife assembly 707.

[0036] The above has only described certain exemplary embodiments of the utility model in a manner of illustration, and it is needless to say that for ordinary skilled person in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A vacuum circuit breaker having a disconnector, characterized by: It include box (1) for supporting vacuum circuit breaker, the insulating sleeve assembly (3) is installed on the rear side of the box (1), for protecting and isolating circuit, the lower side of the box (1) is fixedly connected with the mounting seat (2), the front side of the insulating sleeve assembly (3) is fixedly connected with the current transformer (4), the front side of the box (1) is fixedly connected with the isolation support (5), the upper end of the isolation support (5) is fixedly connected with the knife switch (6), the isolation mechanism (7) is arranged in the inside of the box (1), for isolating power supply, the isolation mechanism (7) includes transmission rod (701) and isolation knife (705) and isolation contact knife assembly (707), the limiting mechanism (708) is arranged in the right end of the transmission rod (701), for interlocking and limiting, the limiting mechanism (708) includes connecting column (7081) and sleeve (7084). The transmission rod (701) is rotatably connected in the box (1), the transmission rod (701) is fixedly connected with the fixed seat (702), the fixed seat (702) is movably connected with the insulating column (703), the upper end of the insulating column (703) is fixedly connected with the connecting seat (704), the isolation knife (705) is movably connected with the connecting seat (704), the isolation contact knife assembly (707) is installed in the front end of the isolation knife (705). The rear side of the isolation knife (705) is movably connected with the movable frame (706), the movable frame (706) is fixedly connected with the front side of the current transformer (4). The connecting column (7081) is installed in the right end of the transmission rod (701), the inner surface of the connecting column (7081) is provided with a limiting groove (7083), the outer surface of the connecting column (7081) is slidably connected with the sleeve (7084), the right side of the connecting column (7081) and the inside of the sleeve (7084) are provided with a spring (7085), the inside of the sleeve (7084) is fixedly connected with a limiting block (7086), the rear side of the sleeve (7084) is fixedly connected with a fixed rod (7087), the rear end of the fixed rod (7087) is fixedly connected with a handle (7088), the outer surface of the handle (7088) is sleeved with an insulating cover (7089).

2. The vacuum circuit breaker with disconnector according to claim 1, characterized in that: The outer surface of the connecting column (7081) is fixedly connected with a sliding block (7082), the sleeve (7084) is limitedly slid with the connecting column (7081) through the sliding block (7082).

3. The vacuum circuit breaker with disconnector according to claim 1, characterized in that: The limiting groove (7083) in the inner side of the connecting column (7081) and the limiting block (7086) in the inside of the sleeve (7084) are square, and the limiting block (7086) is used in cooperation with the limiting groove (7083).

4. The vacuum circuit breaker with disconnector according to claim 1, characterized in that: ​ 5. A vacuum circuit breaker with disconnector according to claim 4, characterized in that: ​ 6. The vacuum circuit breaker with disconnector according to claim 4, characterized in that: ​

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