Circuit breaker capable of being quickly assembled and disassembled

Abstract

The breaker comprises a breaker body, the breaker body is detachably installed on a fixing plate, the upper end and the lower end of the breaker body are respectively provided with a clamping block, and the front side of the fixing plate is provided with two groups of positioning assemblies which are opposite to each other up and down. And the two groups of positioning assemblies are respectively used for elastically clamping the two clamping blocks of the circuit breaker body. Each positioning assembly comprises two positioning units which are arranged in a bilateral symmetry mode, and each positioning unit comprises a positioning shell, a fixing rod and a spring. Positioning holes are formed in the left end and the right end of each clamping block of the circuit breaker body respectively, and the positioning columns of the left positioning unit and the right positioning unit are matched with the positioning holes in the left end and the right end of the corresponding clamping block respectively, so that the clamping blocks are elastically clamped by the positioning assembly. Compared with the prior art, the utility model has the following advantage: the circuit breaker body can be quickly assembled and disassembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, concretely relates to a circuit breaker of quick assembly and disassembly. BACKGROUND

[0002] Circuit breaker refers to the switch device that can close, carry and open the current under normal circuit conditions and can close, carry and open the current under abnormal circuit conditions within the stipulated time. Circuit breaker can be used to distribute electric energy, start the asynchronous motor infrequently, and protect power supply lines and motors, etc. when they have serious overloads or short circuits and under-voltage faults, etc. can automatically cut off the circuit.

[0003] At present, when the circuit breaker is used, it is installed on the cabinet body of the electric control cabinet through the support, the circuit breaker is fixedly connected with the support, the support is fixedly connected with the cabinet body, when subsequent maintenance or replacement is needed, the support needs to be first disassembled from the cabinet body, and then the circuit breaker needs to be disassembled from the support, the connection between the circuit breaker and the support, the support and the cabinet body is generally realized in the mode of screw connection, a plurality of screws need to be disassembled and assembled in the disassembling and assembling process, which is time-consuming and laborious, low in work efficiency, is not conducive to maintenance and replacement, and greatly affects the use effect of the equipment. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of the prior art, and provides a circuit breaker of quick assembly and disassembly, which realizes quick disassembly and assembly of the circuit breaker body.

[0005] The utility model is realized through the following technical schemes:

[0006] A circuit breaker of quick assembly and disassembly, comprising a circuit breaker body, the circuit breaker body is detachably installed on a fixed plate, two ends of the circuit breaker body are respectively provided with clamping blocks, the front side of the fixed plate is provided with two groups of positioning assemblies opposite to each other, and the two groups of positioning assemblies are used for elastically clamping the two clamping blocks of the circuit breaker body respectively.

[0007] As the preferred scheme of the above circuit breaker, each set of the positioning assembly comprises two positioning units arranged symmetrically left and right, and opposite sides of the two positioning units are inner sides, each positioning unit comprises a positioning shell, a fixed rod and a spring, the positioning shell is fixed on the front side of the fixed plate, the positioning shell is internally provided with a sliding groove extending along the left-right direction, the fixed rod is internally provided with a sliding disc with a diameter larger than that of the fixed rod, the sliding disc is in sliding fit with the sliding groove of the positioning shell, the sliding disc is internally provided with a positioning column with a diameter smaller than that of the sliding disc, the inner end of the positioning column extends out of the positioning shell to form a positioning section, the outer end of the fixed rod extends out of the positioning shell and is provided with a pull ring, the spring is sleeved on the fixed rod, the sliding disc is elastically pressed by the spring, and the positioning column extends out of the inner end of the positioning shell in a natural state; each clamping block of the circuit breaker body is provided with a positioning hole at the left and right ends, the positioning columns of the two positioning units are respectively matched with the positioning holes at the left and right ends of the corresponding clamping blocks, and the elastic clamping of the clamping blocks by the positioning assembly is realized.

[0008] As the preferred scheme of the above circuit breaker, the rear side of the circuit breaker body is provided with four limiting pins, and the fixed plate is provided with four limiting holes matched with the four limiting pins.

[0009] As the preferred scheme of the above circuit breaker, the fixed plate is provided with connecting holes at four corners.

[0010] Compared with the prior art, the circuit breaker has the following advantages:

[0011] The utility model provides a kind of quick disassembly and assembly circuit breaker, its front side in fixed plate is equipped with two sets of positioning assembly opposite, in each set of positioning assembly, the elastic clamping of corresponding clamping block on circuit breaker body is realized by two positioning units arranged symmetrically left and right, when disassembling circuit breaker body, just pull the pull ring of positioning unit, the quick disassembly and assembly of circuit breaker body can be realized, it is time-saving and labor-saving to operate, convenient and fast, facilitate the maintenance and replacement of circuit breaker.In addition, by being equipped with four limiting pins and four limiting holes matched, the quick positioning of circuit breaker body on fixed plate can be realized, and the stability when being connected is further improved. DRAWINGS

[0012] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0013] Fig. 2 It is the fixed plate three-dimensional structure schematic diagram of the utility model;

[0014] Fig. 3 It is the circuit breaker body three-dimensional structure schematic diagram of the utility model;

[0015] Fig. 4 It is the positioning shell internal structure schematic diagram of the utility model after cutting half.

[0016] The following numbers are labeled in the diagram: 1 Circuit breaker body; 2 Fixing plate; 3 Connection hole; 4 Limit pin; 5 Limit hole; 6 Locking block; 7 Positioning assembly; 8 Positioning unit; 9 Positioning shell; 10 Fixing rod; 11 Spring; 12 Sliding disc; 13 Positioning column; 14 Pull ring; 15 Positioning hole. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0018] See Figs. 1 to 4 This embodiment discloses a circuit breaker that can be quickly assembled and disassembled, including a circuit breaker body 1. The circuit breaker body 1 is detachably mounted on a fixing plate 2. The fixing plate 2 has connection holes 3 at its four corners. By using screws through the connection holes 3, the fixing plate 2 can be easily fixed to the cabinet of the electrical control cabinet. The rear side of the circuit breaker body 1 is provided with four limiting pins 4, and the fixing plate 2 has four limiting holes 5 that match the four limiting holes 5 one by one. By setting the four matching limiting pins 4 and four limiting holes 5, the circuit breaker body 1 can be quickly positioned on the fixing plate 2, further improving the stability when the two are connected.

[0019] The circuit breaker body 1 is provided with locking blocks 6 at both the upper and lower ends. The front side of the fixing plate 2 is provided with two sets of positioning components 7 that are opposite each other. The two sets of positioning components 7 are used to elastically engage the two locking blocks 6 of the circuit breaker body 1.

[0020] Each positioning assembly 7 includes two positioning units 8 arranged symmetrically on the left and right sides. The side opposite to the two positioning units 8 is the inner side. Each positioning unit 8 includes a positioning shell 9, a fixing rod 10, and a spring 11. The positioning shell 9 is fixed to the front side of the fixing plate 2. The positioning shell 9 has a sliding groove extending in the left and right direction inside. The inner end of the fixing rod 10 has a sliding disk 12 with a diameter larger than the fixing rod 10. The sliding disk 12 slides in conjunction with the sliding groove of the positioning shell 9. The inner end of the sliding disk 12 has a positioning post 13 with a diameter smaller than the sliding disk 12. The end of the positioning post 13... The inner end of the positioning housing 9 extends out to form a positioning section, and the outer end of the fixing rod 10 extends out of the positioning housing 9 and is provided with a pull ring 14. A spring 11 is fitted on the fixing rod 10, and the spring 11 elastically presses against the sliding plate 12, so that the positioning post 13 extends out of the inner end of the positioning housing 9 in a natural state. Each locking block 6 of the circuit breaker body 1 has a positioning hole 15 at both ends. The positioning posts 13 of the two positioning units 8 cooperate with the positioning holes 15 at the left and right ends of the corresponding locking blocks 6 to achieve elastic locking of the positioning component 7 onto the locking blocks 6. In each positioning unit 8, by pulling the pull ring 14 of the two positioning units 8, the two positioning posts 13 can be retracted into the sliding groove of the positioning housing 9, so that the two positioning posts 13 on the left and right can be disengaged from the two positioning holes 15 of the locking block 6, and the circuit breaker body 1 can be removed.

[0021] During installation, first pull out the pull rings 14 of each positioning unit 8, causing the positioning pins 13 to retract into the grooves of the positioning housing 9. Then, align the four limiting pins 4 on the back of the circuit breaker body 1 with the four limiting holes 5 on the fixing plate 2 and insert them. Position the locking blocks 6 at the upper and lower ends of the circuit breaker body 1 between the two positioning housings 9 of the upper and lower positioning components 7. Then, release the pull rings 14. Under the action of the spring 11, the four positioning pins 13 automatically extend and embed into the corresponding positioning holes 15 on the locking blocks 6, thus completing the installation of the circuit breaker body 1 and the fixing plate 2. Furthermore, when disassembling the circuit breaker body 1, simply pull the pull rings 14 again to release the lock, and the circuit breaker body 1 can be removed. This achieves convenient installation and disassembly of the circuit breaker body 1, and the disassembly and assembly operations are simple, quick, and efficient, greatly improving the equipment's performance.

[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circuit breaker that can be quickly disassembled and installed, comprising a circuit breaker body, characterized in that: The circuit breaker body is detachably mounted on the fixing plate. The upper and lower ends of the circuit breaker body are respectively provided with locking blocks. The front side of the fixing plate is provided with two sets of positioning components that are opposite each other. The two sets of positioning components are used to elastically engage the two locking blocks of the circuit breaker body.

2. The circuit breaker that can be quickly installed and removed as described in claim 1, characterized in that: Each positioning assembly includes two positioning units symmetrically arranged on the left and right sides, with the opposite side of the two positioning units being the inner side. Each positioning unit includes a positioning shell, a fixing rod, and a spring. The positioning shell is fixed to the front side of the fixing plate. The positioning shell has a sliding groove extending in the left and right direction inside. The inner end of the fixing rod has a sliding disk with a diameter larger than the fixing rod. The sliding disk slides in conjunction with the sliding groove of the positioning shell. The inner end of the sliding disk has a positioning post with a diameter smaller than the sliding disk. The inner end of the positioning post extends out of the positioning shell to form a positioning section. The outer end of the fixing rod extends out of the positioning shell and has a pull ring. A spring is fitted on the fixing rod. The spring elastically presses against the sliding disk, so that the positioning post extends out of the inner end of the positioning shell in a natural state. Each locking block of the circuit breaker body has positioning holes at both ends of its left and right sides. The positioning posts of the two positioning units on the left and right sides respectively cooperate with the positioning holes at the left and right ends of the corresponding locking blocks to achieve elastic locking of the positioning assembly onto the locking blocks.

3. A circuit breaker that can be quickly installed and removed as described in claim 1, characterized in that: The circuit breaker body has four limiting pins on the rear side, and the fixing plate has four limiting holes that match the four limiting holes one by one.

4. A circuit breaker that can be quickly installed and removed as described in claim 1, characterized in that: The fixing plate has connection holes at each of its four corners.

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