Residual-current circuit breaker

Abstract

The utility model relates to the technical field of residual-current circuit breakers, in particular to a residual-current circuit breaker, which comprises a circuit breaker body, a connecting assembly is arranged on the back of the circuit breaker body, the connecting assembly comprises a mounting seat, mounting plates are vertically and symmetrically arranged on the left side surface and the right side surface of the mounting seat, and a fixing groove is formed in the front of the mounting seat. According to the electric leakage circuit breaker, the connecting assembly is arranged on the electric leakage circuit breaker, a pulling button is pulled outwards, the pulling button drives a pulling rod to move, a first rotating rod and a second rotating rod can be driven to rotate through a connecting block, and the first rotating rod and the second rotating rod respectively drive a first clamping rod and a second clamping rod to move when rotating; when the first clamping rod and the second clamping rod respectively move to the outer side of the clamping groove, the circuit breaker body can be disassembled by moving the circuit breaker body forwards, so that when the circuit breaker body is damaged, the circuit breaker body is convenient to maintain, and the whole device is simple in structure, convenient to operate and higher in practicability.

Description

Technical Field

[0001] This utility model relates to the field of residual current circuit breaker technology, specifically to a residual current circuit breaker. Background Technology

[0002] A residual current device (RCD), also known as a residual current circuit breaker, is mainly used to protect equipment from leakage faults and to protect people from fatal electric shocks. It has overload and short circuit protection functions and can be used to protect circuits or motors from overload and short circuits. It can also be used for infrequent switching and starting of circuits under normal conditions.

[0003] Existing residual current circuit breakers are inconvenient to install and remove, making it difficult to disassemble and repair them when they are damaged, which is quite inconvenient to use.

[0004] Therefore, a residual current circuit breaker is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a residual current circuit breaker to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A residual current circuit breaker includes a circuit breaker body, and a connection assembly is provided on the back of the circuit breaker body;

[0008] The connecting assembly includes a mounting base. Mounting plates are symmetrically arranged on the left and right sides of the mounting base. A fixing groove is provided on the front of the mounting base. Snap-fit ​​grooves are symmetrically arranged on the upper and lower sides inside the fixing groove. Limiting holes are provided at the corners of the front of the mounting base. A connecting seat is provided on the front side of the mounting base. Limiting rods are provided at the corners of the back of the connecting seat. A fixing frame is provided on the back of the connecting seat. A first limiting block is provided on the upper side inside the fixing frame. A second limiting block is provided on the lower side inside the fixing frame. A first snap-fit ​​rod is slidably arranged inside the first limiting block. A second snap-fit ​​rod is slidably arranged inside the second limiting block. A first rotating rod is rotatably arranged at the lower end of the first snap-fit ​​rod. A second rotating rod is rotatably arranged at the upper end of the second snap-fit ​​rod. A connecting block is rotatably arranged between the left ends of the first and second rotating rods. A pull rod is provided at the left end of the connecting block. A fixing spring is sleeved on the outer wall of the pull rod. A pull button is provided at the left end of the pull rod, passing through the fixing frame.

[0009] As a preferred embodiment of this utility model, the front of the connecting seat is fixedly connected to the back of the circuit breaker body.

[0010] As a preferred embodiment of this utility model, the fixing frame and the fixing groove are adapted to each other.

[0011] As a preferred embodiment of this utility model, the limiting rod and the limiting hole are correspondingly and adapted to each other.

[0012] As a preferred embodiment of this utility model, the base surface and bottom of the fixing frame are respectively provided with through grooves corresponding to the first locking rod and the second locking rod.

[0013] As a preferred embodiment of this utility model, the first locking rod and the second locking rod are adapted to correspond with the locking groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, a connecting assembly is installed on the residual current circuit breaker. Pulling the pull button outward causes the pull rod to move, which in turn drives the first and second rotating rods to rotate via the connecting block. When the first and second rotating rods rotate, they respectively drive the first and second locking rods to move. After the first and second locking rods move to the outside of the locking groove, the circuit breaker body can be disassembled by moving it forward. This facilitates maintenance when the circuit breaker is damaged. The overall device has a simple structure, is easy to operate, and is more practical. Attached Figure Description

[0016] Figure 1 This is the overall front view of the present utility model;

[0017] Figure 2 This is a structural diagram of the internal structure of the fixed frame of this utility model;

[0018] Figure 3 This is an exploded view of part of the structure of this utility model.

[0019] In the diagram: 1. Circuit breaker body; 2. Connecting assembly; 201. Mounting base; 202. Mounting plate; 203. Fixing groove; 204. Snap-fit ​​groove; 205. Limiting hole; 206. Connecting seat; 207. Limiting rod; 208. Fixing frame; 209. First limiting block; 210. Second limiting block; 211. First snap-fit ​​rod; 212. Second snap-fit ​​rod; 213. First rotating rod; 214. Second rotating rod; 215. Connecting block; 216. Pull rod; 217. Fixing spring; 218. Pull button. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0025] A residual current circuit breaker includes a circuit breaker body 1, and a connection assembly 2 is provided on the back of the circuit breaker body 1.

[0026] In this embodiment, please refer to Figure 2 and 3The connecting component 2 includes a mounting base 201. Mounting plates 202 are symmetrically arranged on the left and right sides of the mounting base 201. A fixing groove 203 is provided on the front of the mounting base 201. Snap-fit ​​grooves 204 are symmetrically arranged on the upper and lower sides inside the fixing groove 203. Limiting holes 205 are provided at the corners of the front of the mounting base 201. A connecting base 206 is provided on the front side of the mounting base 201. Limiting rods 207 are provided at the corners of the back of the connecting base 206. A fixing frame 208 is provided on the back of the connecting base 206. A first limiting block 209 is provided on the upper side inside the fixing frame 208, and a second limiting block 209 is provided on the lower side inside the fixing frame 208. The two limiting blocks 210 have a first locking rod 211 slidably disposed inside the first limiting block 209 and a second locking rod 212 slidably disposed inside the second limiting block 210. A first rotating rod 213 is rotatably disposed at the lower end of the first locking rod 211 and a second rotating rod 214 is rotatably disposed at the upper end of the second locking rod 212. A connecting block 215 is rotatably disposed between the left ends of the first rotating rod 213 and the second rotating rod 214. A pulling rod 216 is disposed at the left end of the connecting block 215. A fixing spring 217 is sleeved on the outer wall of the pulling rod 216. A pulling button 218 is disposed at the left end of the pulling rod 216 through the fixing frame 208.

[0027] The front of the connecting seat 206 is fixedly connected to the back of the circuit breaker body 1. The fixing frame 208 is adapted to the fixing groove 203, allowing the fixing frame 208 to enter the interior of the fixing groove 203. The limiting rod 207 is adapted to the limiting hole 205, allowing the limiting rod 207 to enter the interior of the limiting hole 205. The base surface and bottom of the fixing frame 208 are respectively provided with through grooves corresponding to the first locking rod 211 and the second locking rod 212. The first locking rod 211 and the second locking rod 212 are adapted to the locking groove 204, allowing the first locking rod 211 and the second locking rod 212 to enter the interior of the locking groove 204 respectively. By installing a connecting component 2 on the residual current circuit breaker, pulling the pull button 218 outward causes the pull rod 216 to move. Through the connecting block 215, the first rotating rod 213 and the second rotating rod 214 can be rotated. When the first rotating rod 213 and the second rotating rod 214 rotate, they respectively drive the first locking rod 211 and the second locking rod 212 to move. When the first locking rod 211 and the second locking rod 212 move to the outside of the locking groove 204, the circuit breaker body 1 can be moved forward to disassemble it. This makes it convenient to repair when it is damaged. The overall device has a simple structure, is easy to operate, and has higher practicality.

[0028] The working process of this utility model is as follows: When using the residual current circuit breaker, firstly, install the mounting base 201 in a suitable position using the mounting plate 202. When it is necessary to disassemble the circuit breaker body 1, pull the pull button 218 to the left. The pull button 218 drives the pull rod 216 to move. When the pull rod 216 moves, it drives the connecting block 215 to move. Since the first rotating rod 213 and the second rotating rod 214 are respectively rotatably connected to the connecting block 215, the first rotating rod 213 and the second rotating rod 214 can be driven by the connecting block 215. The two rotating rods 214 rotate. Since the first rotating rod 213 and the second rotating rod 214 are rotatably connected to the first locking rod 211 and the second locking rod 212 respectively, the first rotating rod 213 and the second rotating rod 214 drive the first locking rod 211 and the second locking rod 212 to move when they rotate. When the first locking rod 211 and the second locking rod 212 move to the outside of the locking groove 204 respectively, the circuit breaker body 1 can be disassembled by moving it forward, so that it is convenient to repair when it is damaged.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A residual current circuit breaker, comprising a circuit breaker body (1), characterized in that: A connecting component (2) is provided on the back of the circuit breaker body (1). The connecting component (2) includes a mounting base (201). Mounting plates (202) are symmetrically arranged on the left and right sides of the mounting base (201). A fixing groove (203) is provided on the front of the mounting base (201). Snap-fit ​​grooves (204) are symmetrically arranged on the upper and lower sides inside the fixing groove (203). Limiting holes (205) are provided at the corners of the front of the mounting base (201). A connecting seat (206) is provided on the front side of the mounting base (201). Limiting rods (207) are provided at the corners of the back of the connecting seat (206). A fixing frame (208) is provided on the back of the connecting seat (206). A first limiting block (209) is provided on the upper side inside the fixing frame (208). A limiting block (209) is provided on the lower side inside the fixing frame (208). There is a second limiting block (210), a first locking rod (211) is slidably arranged inside the first limiting block (209), a second locking rod (212) is slidably arranged inside the second limiting block (210), a first rotating rod (213) is rotatably arranged at the lower end of the first locking rod (211), a second rotating rod (214) is rotatably arranged at the upper end of the second locking rod (212), a connecting block (215) is rotatably arranged between the left ends of the first rotating rod (213) and the second rotating rod (214), a pull rod (216) is arranged at the left end of the connecting block (215), a fixing spring (217) is sleeved on the outer wall of the pull rod (216), and a pull button (218) is arranged at the left end of the pull rod (216) through the fixing frame (208).

2. A residual current circuit breaker according to claim 1, characterized in that: The front of the connector (206) is fixedly connected to the back of the circuit breaker body (1).

3. A residual current circuit breaker according to claim 1, characterized in that: The fixing frame (208) is adapted to the fixing groove (203).

4. A residual current circuit breaker according to claim 1, characterized in that: The limiting rod (207) is adapted to the limiting hole (205).

5. A residual current circuit breaker according to claim 1, characterized in that: The base and bottom of the fixed frame (208) are respectively provided with through slots corresponding to the first snap-fit ​​rod (211) and the second snap-fit ​​rod (212).

6. A residual current circuit breaker according to claim 1, characterized in that: The first snap-fit ​​rod (211) and the second snap-fit ​​rod (212) are adapted to the snap-fit ​​groove (204).

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