Installation and removal device of longitudinal rotation isolation circuit breaker

Abstract

The utility model relates to an installing and moving-out device of a longitudinal rotation isolation circuit breaker, which comprises a circuit breaker installing frame, circuit breaker positioning pins, a switch cabinet positioning support, switch cabinet positioning pins, circuit breaker supporting rails, fixing bolts and fixing nuts, a switch cabinet is provided with a cabinet body, and the circuit breaker supporting rails are arranged on two side walls of the cabinet body. The circuit breaker installation frame is installed in the circuit breaker supporting track in a sliding mode from one end of the cabinet body, the switch cabinet positioning support is installed at the other end of the cabinet body, the switch cabinet positioning pin is fixed to the switch cabinet positioning support, the circuit breaker positioning pin is fixed to the front end of the circuit breaker installation frame, and the fixing nut is installed at the rear end of the circuit breaker installation frame in an embedded mode. A fixing plate is arranged at the position, matched with the fixing nut, of the cabinet body, and a fixing bolt penetrates through the fixing plate to be connected with the fixing nut. The utility model aims to provide a device which enables the longitudinal rotation isolation circuit breaker to be fixedly installed and conveniently moved out.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of switchgear, especially a kind of installation and removal device of longitudinal spin isolation circuit breaker. BACKGROUND

[0002] In power system, high-voltage switchgear as key control and protection element, its stability and reliability are crucial to the safe, efficient operation of power system. Among them, box type complete equipment with its compact structure, high integration, maintenance convenient advantage, in substation, power station and other places have been widely used. In such equipment, main switch circuit breaker as the core component of cutting off and connecting current, implementing fault protection, its installation and maintenance mode directly affects the operation efficiency and maintenance cost of the whole system.

[0003] Traditionally, in order to ensure that normal power failure or routine maintenance can simplify operation process, and maintain circuit breaker in a relatively stable working environment, main switch circuit breaker is directly integrated in switch cabinet by fixed installation. Although this installation method can effectively avoid the wear and potential safety hazards caused by frequent disassembly, it also brings a series of challenges.

[0004] Firstly, when circuit breaker or switch cabinet itself needs to be overhauled or replaced, since circuit breaker has been fixedly installed, it needs to go through a complex disassembly process, including disconnecting electrical connection, disassembling fixing parts and other steps, so as to remove it from the cabinet. This process not only consumes time and effort, but also increases the working strength and skill requirement of operating personnel, and may also cause equipment damage or safety risk due to improper operation.

[0005] Secondly, for circuit breaker that needs frequent maintenance or has high expected failure rate, traditional fixed installation method is obviously not conducive to quick response and maintenance. Each maintenance needs a lot of preparation work and subsequent recovery work, not only prolongs the power-off time, but also may affect the power experience of surrounding users.

[0006] Furthermore, with the continuous development of power technology and the promotion of smart grid construction, higher requirements are put forward for the intelligentization, modularization and easy maintenance of high-voltage switchgear. Traditional fixed installation method limits the application and promotion of these new technologies to some extent, and it is difficult to meet the demand of power industry for rapid upgrading and flexible configuration of equipment. INVENTION CONTENTS

[0007] The utility model aims at solving the above technical problem, provides a kind of installation and removal device of longitudinal spin isolation circuit breaker, the present application is to provide a kind of device that makes longitudinal spin isolation circuit breaker can be fixedly installed and conveniently removed, improves the facilitation and high reliability of switchgear operation and maintenance.

[0008] The application relates to a mounting and removing device for a longitudinal-rotation isolation circuit breaker, which comprises a circuit breaker mounting frame, a circuit breaker positioning pin, a switch cabinet positioning support, a switch cabinet positioning pin, a circuit breaker support rail, a fixing bolt and a fixing nut, wherein the switch cabinet has a cabinet body, the circuit breaker support rail is arranged on two side walls of the cabinet body, the circuit breaker mounting frame is slidably arranged in the circuit breaker support rail at one end of the cabinet body, the switch cabinet positioning support is arranged at the other end of the cabinet body, the switch cabinet positioning pin is fixed on the switch cabinet positioning support, the circuit breaker positioning pin is fixed on the front end of the circuit breaker mounting frame, the fixing nut is embeddedly arranged on the rear end of the circuit breaker mounting frame, the circuit breaker mounting frame is pushed into the cabinet body along the circuit breaker support rail, the switch cabinet positioning pin is inserted into the circuit breaker mounting frame for positioning, the circuit breaker positioning pin is inserted into the switch cabinet positioning support for positioning, the cabinet body is provided with a fixing plate at the position matched with the fixing nut, and the fixing bolt is connected with the fixing nut through the fixing plate.

[0009] According to the mounting and removing device for the longitudinal-rotation isolation circuit breaker, the circuit breaker mounting frame can slide along the circuit breaker support rail, so that the longitudinal-rotation isolation circuit breaker can conveniently enter and exit the cabinet body, the circuit breaker mounting frame is supported and arranged in the cabinet body through the circuit breaker support rail, so that the longitudinal-rotation isolation circuit breaker can be connected with other wiring terminals in the cabinet body, the front end of the circuit breaker mounting frame is inserted into the switch cabinet positioning support for positioning through the cooperation of the plurality of positioning pins, the position of the circuit breaker mounting frame can be fixed through the cooperation of the fixing bolt and the fixing nut on the rear end of the circuit breaker mounting frame, so that the isolation circuit breaker arranged on the circuit breaker mounting frame can stably work in the switch cabinet, the position of the fixing bolt is close to the entrance of the switch cabinet, the fixing bolt can be conveniently dismounted, and the circuit breaker mounting frame can be conveniently removed from the switch cabinet.

[0010] Further, the rear end of the circuit breaker mounting frame is an operation box body, and the fixing nut is embeddedly arranged on the bottom of the operation box body.

[0011] Still further, the front end of the circuit breaker mounting frame is provided with a plurality of square tubes, the square tubes are spliced to form a square outer hub of the circuit breaker mounting frame, the square tubes are hollow, and the switch cabinet positioning pin is inserted into one end of the square tube for positioning.

[0012] Still further, the square tubes slide along the circuit breaker support rail. DETAILED DESCRIPTION

[0013] Fig. 1 It is a sectional view of the switch cabinet.

[0014] Fig. 2 Figure 3 is a partial sectional view of the installation and removal device of the longitudinal rotary isolating circuit breaker from the side view direction.

[0015] Fig. 3 Figure 4 is a partial sectional view of the installation and removal device of the longitudinal rotary isolating circuit breaker from the rear view direction.

[0016] Fig. 4 Figure 5 is a plan view of the installation and removal device of the longitudinal rotary isolating circuit breaker. DETAILED DESCRIPTION

[0017] The installation and removal device of the longitudinal rotary isolating circuit breaker of the present application is described in conjunction with the accompanying drawings.

[0018] As Figs. 1 to 4The installation and removal device of the longitudinal rotation isolation circuit breaker is shown, which comprises a circuit breaker mounting frame 21, a circuit breaker positioning pin 213, a switch cabinet positioning support 12, a switch cabinet positioning pin 123, a circuit breaker support rail 11, a fixing bolt 4 and a fixing nut 3, the isolation circuit breaker 2 is provided with three current-carrying poles and is arranged in a longitudinal and spaced manner on the circuit breaker mounting frame 21, the switch cabinet has a cabinet body 1, the circuit breaker support rail 11 is arranged on two side walls of the cabinet body 1, the circuit breaker mounting frame 21 is slidably mounted in the circuit breaker support rail 11 at one end of the cabinet body 1, the circuit breaker mounting frame 21 can slide along the circuit breaker support rail 11 through the circuit breaker support rail 11, so that the longitudinal rotation isolation circuit breaker 2 can conveniently enter and exit the cabinet body 1, and the circuit breaker mounting frame 21 is also supported and mounted in the cabinet body 1 through the circuit breaker support rail 11, so that the longitudinal rotation isolation circuit breaker 2 can be connected to other wiring terminals in the cabinet body 1 in an up-down manner; the switch cabinet positioning support 12 is mounted at the other end of the cabinet body 1, the switch cabinet positioning pin 123 is fixed on the switch cabinet positioning support 12, the circuit breaker positioning pin 213 is fixed at the front end of the circuit breaker mounting frame 21, the fixing nut 3 is pre-buried and mounted at the rear end of the circuit breaker mounting frame 21, the circuit breaker mounting frame 21 is pushed into the cabinet body 1 along the circuit breaker support rail 11, the switch cabinet positioning pin 123 is inserted into the circuit breaker mounting frame 21 for positioning, and the circuit breaker positioning pin 213 is inserted into the switch cabinet positioning support 12 for positioning, the cabinet body 1 is provided with a fixed plate 13 at the position matched with the fixing nut 3, the fixing bolt 4 is connected with the fixing nut 3 through the fixed plate 13, the front end of the circuit breaker mounting frame 21 and the switch cabinet positioning support 12 are mutually inserted and positioned through the cooperation of the plurality of positioning pins, the position of the circuit breaker mounting frame 21 can be fixed through the cooperation of the fixing bolt 4 and the fixing nut 3 at the rear end of the circuit breaker mounting frame 21, so that the isolation circuit breaker 2 mounted on the circuit breaker mounting frame 21 can stably work in the switch cabinet, and the position of the fixing bolt 4 is close to the entrance position of the switch cabinet where the circuit breaker mounting frame 21 is mounted, so that the fixing bolt 4 can be conveniently disassembled, and the circuit breaker mounting frame 21 can be conveniently removed from the switch cabinet.

[0019] As Figs. 2 to 4 shown, the rear end of the circuit breaker mounting frame 21 is an operation box body 212, the fixing nut 3 is pre-buried and mounted at the bottom of the operation box body 212, the operation box body 212 is used for mounting the box body of the operation mechanism for operating the isolation circuit breaker 2, and the fixing nut 3 is pre-buried at the bottom of the operation box body 212, so that the worker can more conveniently disassemble and install the fixing bolt 4.

[0020] As Figs. 2 to 4As shown, the front end of the circuit breaker mounting rack 21 is provided with a plurality of square tubes 211, which are spliced to form a square outer hub of the circuit breaker mounting rack 21, the square tubes 211 are internally hollow, the switch cabinet positioning pin 123 is inserted and positioned with one end of the square tube 211, the hollow square tube 211 can be conveniently inserted with the switch cabinet positioning pin 123, thereby avoiding opening a positioning hole for the switch cabinet positioning pin 123, so that the circuit breaker mounting rack 21 can remain intact, and the switch cabinet positioning support 12 is correspondingly provided with a insertion hole for inserting the circuit breaker positioning pin 213.

[0021] As shown in the drawings, Figs. 2 to 4 The square tube 211 slides along the circuit breaker support rail 11.

[0022] According to the disclosure and teaching of the above description, those skilled in the art of the present application can also make changes and modifications to the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should also fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of explanation and do not constitute any limitation on the present application.

Claims

1. An installation and removal device for a longitudinal-separation circuit breaker, characterized in that, The circuit breaker mounting frame, the circuit breaker positioning pin, the switch cabinet positioning support, the switch cabinet positioning pin, the circuit breaker support rail, the fixing bolt and the fixing nut are used for the switch cabinet, the switch cabinet has a cabinet body, the circuit breaker support rail is arranged on two side walls of the cabinet body, the circuit breaker mounting frame is slidably arranged in the circuit breaker support rail at one end of the cabinet body, the switch cabinet positioning support is arranged at the other end of the cabinet body, the switch cabinet positioning pin is fixed on the switch cabinet positioning support, the circuit breaker positioning pin is fixed on the front end of the circuit breaker mounting frame, the fixing nut is embeddedly arranged at the rear end of the circuit breaker mounting frame, the circuit breaker mounting frame is pushed into the cabinet body along the circuit breaker support rail, the switch cabinet positioning pin is inserted into the circuit breaker mounting frame for positioning, the circuit breaker positioning pin is inserted into the switch cabinet positioning support for positioning, the cabinet body is provided with a fixing plate at the position matched with the fixing nut, and the fixing bolt is connected with the fixing nut through the fixing plate.

2. The mounting and removal device for longitudinal-separation circuit breakers according to claim 1, characterized in that The rear end of the circuit breaker mounting frame is an operation box body, and the fixing nut is embeddedly arranged at the bottom of the operation box body.

3. The mounting and removal device for longitudinal-separation circuit breakers according to claim 1, characterized in that, The front end of the circuit breaker mounting frame is provided with a plurality of square tubes, the square tubes are spliced to form a square outer hub of the circuit breaker mounting frame, the square tubes are internally hollow, and the switch cabinet positioning pin is inserted into one end of the square tube for positioning.

4. The mounting and removal device for longitudinal-separation circuit breakers according to claim 3, characterized in that The square tube slides along the circuit breaker support rail.

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