Combined circuit breaker

Abstract

The utility model discloses a combined circuit breaker which comprises a circuit breaker main body, the rear side of the circuit breaker main body is fixedly connected with a back plate, the upper end and the lower end of the back plate are connected with bolts in a threaded penetrating mode, and the upper portion and the lower portion of one side of the circuit breaker main body are each provided with a first groove. Second grooves corresponding to the first grooves are formed in the upper portion and the lower portion of the side, away from the first grooves, of the circuit breaker body, sliding plates are slidably connected to the interiors of the second grooves in the two sides, and fixing plates penetrating and extending to the outer sides of the second grooves are fixedly connected to the sides, away from the interiors of the second grooves, of the two sliding plates. According to the utility model, the fixing plate at one side of the circuit breaker main body extends into the first groove at one side of the adjacent circuit breaker main body, and then the pressing of the pressing rods at the two sides is released, so that the elastic effect of the spring is released, and the sliding plates at the two sides are pushed to be far away from the fixing plate until the limiting rods are inserted into the limiting holes at the inner sides of the corresponding fixing plates; therefore, the circuit breaker main bodies are combined and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a combined circuit breaker. Background Art

[0002] A circuit breaker is a switch device that can close, carry and disconnect the current under normal circuit conditions and close, carry and disconnect the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. When they have serious overloads or short circuits and undervoltage faults, they can automatically cut off the circuit. Its function is equivalent to the combination of a fuse switch and an over-underheating relay. Moreover, it is generally not necessary to change parts after breaking the fault current.

[0003] However, some circuit breakers are installed in distribution boxes, and multiple circuit breakers are set in the same distribution box according to the number of electrical equipment. However, some circuit breakers are used separately and are not connected with adjacent circuit breakers. When a circuit breaker is loose or even falls off from the distribution box, the electrical equipment it controls cannot operate normally. Therefore, it does not meet the existing needs. We propose a combined circuit breaker. Utility Model Content

[0004] The purpose of the utility model is to provide a combined circuit breaker to solve the problem that some circuit breakers are installed in a distribution box, and multiple circuit breakers are arranged in the same distribution box according to the number of electrical equipment, but some circuit breakers are fixed for use alone and are not connected to adjacent circuit breakers. When a circuit breaker is loose or even falls off from the distribution box, the electrical equipment controlled by it cannot operate normally.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined circuit breaker, comprising a circuit breaker body, a back plate fixedly connected to the rear side of the circuit breaker body, bolts threadedly penetrated at both upper and lower ends of the back plate, first grooves are provided at the upper and lower sides of one side of the circuit breaker body, second grooves corresponding to the first grooves are provided at the upper and lower sides of the circuit breaker body away from the first groove, slides are slidably connected to the inside of the second grooves on both sides, and fixed plates extending through and extending to the outside of the second grooves are fixedly connected to the sides of the two slides away from the inside of the second grooves.

[0006] Preferably, both sides of the inner walls of the two second grooves are provided with sliding grooves, and the front and rear sides of the sliding plate are slidably connected to the inside of the sliding grooves through sliding blocks.

[0007] Preferably, a spring is fixedly connected between the side of the slides on both sides close to each other and the inner wall of the second groove, and the side of the slides on both sides away from the spring is fixedly connected to a pressing rod that passes through the second groove and extends to the outside of the circuit breaker body.

[0008] Preferably, a limiting hole is formed through the surface of the fixing plate, and limiting rods matching the limiting holes are fixedly connected inside the ends of the two first grooves that are away from each other, and the limiting rods are inserted through the limiting holes.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model presses the upper and lower pressing rods on one side of the circuit breaker body, thereby driving the slide plates on both sides to slide along the slide groove, and compressing the spring to generate deformation. When the slide plates on both sides move, the two fixing plates are driven to approach each other, and then one side of another circuit breaker body is approached to the previous circuit breaker body, and the fixing plate on one side of the circuit breaker body is extended into the first groove on one side of the adjacent circuit breaker body. Then, the pressing rods on both sides are released to release the elastic effect of the spring, and the slide plates and the fixing plates on both sides are pushed away from each other until the limiting rods are plugged into the limiting holes on the inner sides of the corresponding fixing plates, so that the circuit breaker bodies are combined and fixed, and the circuit breaker body is conveniently installed in the inside of the distribution box by bolts through the arrangement of the back plate at the rear side of the circuit breaker body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a side sectional view of the utility model as a whole;

[0013] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle.

[0014] In the figure: 1. circuit breaker body; 101. first groove; 102. second groove; 103. slide groove; 2. back plate; 3. bolt; 4. limit rod; 5. slide plate; 6. pressing rod; 7. spring; 8. fixing plate; 9. limit hole. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] See also Figures 1 to 3The utility model provides an embodiment: a combined circuit breaker, including a circuit breaker body 1, a back plate 2 is fixedly connected to the rear side of the circuit breaker body 1, bolts 3 are threadedly penetrated at both ends of the back plate 2, first grooves 101 are opened at the upper and lower sides of one side of the circuit breaker body 1, and second grooves 102 corresponding to the first groove 101 are opened at the upper and lower sides of the circuit breaker body 1 away from the first groove 101, and slide plates 5 are slidably connected to the inside of the second grooves 102 on both sides, and the two slide plates 5 are fixedly connected to the sides away from the inside of the second grooves 102 with fixing plates 8 extending through and extending to the outside of the second grooves 102.

[0017] Slide grooves 103 are provided on both sides of the inner walls of the two second grooves 102, and the front and rear sides of the slide plate 5 are slidably connected to the inside of the slide grooves 103 through sliders. A spring 7 is fixedly connected between the sides of the slide plates 5 close to each other and the inner walls of the second grooves 102, and the sides of the slide plates 5 away from the spring 7 are fixedly connected to the pressing rod 6 that penetrates the second groove 102 and extends to the outside of the circuit breaker body 1.

[0018] By pressing the upper and lower pressing rods 6 on one side of the circuit breaker body 1, the slide plates 5 on both sides are driven to slide along the slide grooves 103, and the springs 7 are compressed to deform. When the slide plates 5 on both sides move, the two fixing plates 8 are driven to move closer to each other.

[0019] A limiting hole 9 is formed through the surface of the fixing plate 8 , and limiting rods 4 matching the limiting holes 9 are fixedly connected inside the ends of the two first grooves 101 away from each other, and the limiting rods 4 penetrate and are inserted into the limiting holes 9 .

[0020] By bringing one side of another circuit breaker body 1 close to the previous circuit breaker body 1 and extending the fixing plate 8 on one side of the circuit breaker body 1 into the first groove 101 on one side of the adjacent circuit breaker body 1, and then releasing the pressing rods 6 on both sides, the springs 7 are released from their elastic action and push the slide plates 5 and the fixing plates 8 on both sides away from each other until the limiting rods 4 are plugged into the limiting holes 9 on the inner side of the corresponding fixing plates 8, thereby combining and fixing the circuit breaker bodies 1.

[0021] When the circuit breakers are assembled, the pressing rods 6 on the upper and lower sides of one side of the circuit breaker body 1 are pressed, thereby driving the slide plates 5 on both sides to slide along the slide groove 103, and squeezing the spring 7 to compress and deform. While the slide plates 5 on both sides move, the two fixing plates 8 are driven to approach each other, and then one side of the other circuit breaker body 1 is moved close to the previous circuit breaker body 1, and the fixing plate 8 on one side of the circuit breaker body 1 is extended into the first groove 101 on the side of the adjacent circuit breaker body 1, and then the pressing rods 6 on both sides are released to release the elastic effect of the spring 7, and push the slide plates 5 and the fixing plates 8 on both sides away from each other until the limiting rod 4 is plugged into the limiting hole 9 on the inner side of the corresponding fixing plate 8, so that the circuit breaker bodies 1 are assembled and fixed, and the circuit breaker body 1 is conveniently installed in the inside of the distribution box through the bolts 3 through the setting of the back plate 2 on the rear side of the circuit breaker body 1.

[0022] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A combined circuit breaker, comprising a circuit breaker body (1), characterized in that: A back plate (2) is fixedly connected to the rear side of the circuit breaker body (1), and bolts (3) are threadedly penetrated at both upper and lower ends of the back plate (2). First grooves (101) are provided at the upper and lower sides of one side of the circuit breaker body (1), and second grooves (102) corresponding to the first groove (101) are provided at the upper and lower sides of the circuit breaker body (1) away from the first groove (101), and slide plates (5) are slidably connected to the inside of the second grooves (102) on both sides, and fixed plates (8) are provided on the sides of the two slide plates (5) away from the inside of the second grooves (102) and extend through the outside of the second grooves (102).

2. A combined circuit breaker according to claim 1, characterized in that: Slide grooves (103) are provided on both sides of the inner walls of the two second grooves (102), and the front and rear sides of the slide plate (5) are slidably connected to the inside of the slide grooves (103) through sliding blocks.

3. A combined circuit breaker according to claim 1, characterized in that: A spring (7) is fixedly connected between the sides of the slides (5) close to each other and the inner wall of the second groove (102), and the sides of the slides (5) away from the spring (7) are fixedly connected to a pressing rod (6) that passes through the second groove (102) and extends to the outside of the circuit breaker body (1).

4. A combined circuit breaker according to claim 1, characterized in that: A limiting hole (9) is formed through the surface of the fixing plate (8), and a limiting rod (4) matching the limiting hole (9) is fixedly connected inside the ends of the two first grooves (101) that are away from each other, and the limiting rod (4) penetrates and is inserted into the inside of the limiting hole (9).

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