Support for residual-current circuit breaker

Abstract

The utility model relates to the technical field of residual-current circuit breakers, in particular to a support for a residual-current circuit breaker, which comprises a main frame, a bottom frame and an adjusting device, the bottom frame is arranged on one side of the main frame, the adjusting device is arranged on the surface of the main frame and comprises two moving blocks, and the two moving blocks are arranged on the surface between the main frame and the bottom frame. Rotating holes are formed in the surfaces of the two sides of the main frame, the two rotating holes are symmetrically formed, threaded rods are rotationally connected to the surfaces of the rotating holes, threaded holes are formed in the surfaces of the moving blocks, the threaded rods are in threaded connection with the surfaces of the threaded holes, two auxiliary rods are fixedly connected to the surface of one side of the main frame, and the two auxiliary rods are located on the two sides of the threaded rods. According to the utility model, through the arrangement of the adjusting device, a worker can effectively and conveniently adjust the specification of the support, the situation that mismatching occurs when the worker installs the residual-current circuit breaker is avoided, the time for the worker to replace the support is further saved, and the worker can adjust the moving block to drive the bottom frame to abut against the residual-current circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of residual current circuit breaker technology, and in particular to a bracket for a residual current circuit breaker. Background Technology

[0002] A residual current circuit breaker (RCCB) is an electrical protection device used to detect leakage current and automatically cut off the power supply. It is mainly used to prevent electric shock accidents caused by leakage in electrical equipment and wiring, as well as single-phase electric shock accidents during electricity use. When the RCCB detects a leakage current reaching a set value, it automatically cuts off the power supply within a limited time, thus providing protection. This device is widely used in homes, schools, and other civilian locations, as well as for the protection of handheld power tools and portable electrical equipment. The working principle of the RCCB is based on a zero-sequence current transformer, which can detect leakage current in the circuit. When leakage current is detected, the RCCB disconnects the main circuit through the trip unit, cutting off the power supply. In addition, the RCCB can also be used in conjunction with audible and visual signal devices to issue leakage alarm signals, reflecting the insulation status of the circuit. An RCCB bracket is a special bracket used to install and fix the RCCB. Its main function is to ensure the stable operation of the RCCB, preventing it from shifting or falling off during operation, thereby ensuring the safe and stable operation of the circuit. The bracket also provides a certain degree of protection for the RCCB, reducing the impact of the external environment on the equipment and extending its service life.

[0003] Existing equipment, such as CN213519807U, includes a bracket for a residual current circuit breaker (RCCB). This bracket comprises two side brackets, one side of the top of each side bracket being fixedly connected to both ends of the bottom of a horizontal bracket. Neutral and live wire terminals are fixedly installed at both ends of the top of the horizontal bracket. A buzzer is fixedly installed in the middle of the top of the horizontal bracket, and warning lights are fixedly connected to both sides of the buzzer and at the top of the horizontal bracket. Connecting blocks are fixedly connected to both ends of the bottom of each side bracket, and threaded holes are provided on the surface of each of the four connecting blocks. Mounting openings are provided on the surface of each of the two side brackets, and a limit flange is fixedly connected to one side of each mounting opening. This utility model, a bracket for an RCCB, ensures the stability of the circuit breaker installation through the cooperation of the side brackets, horizontal bracket, connecting blocks, threaded holes, mounting holes, mounting openings, limit strips, and limit flanges. It achieves short-circuit warning through the cooperation of the horizontal bracket, neutral wire terminal, live wire terminal, warning lights, and buzzer.

[0004] When workers need to install residual current circuit breakers (RCCBs), they mount the RCCBs onto brackets so that the brackets can support the RCCBs. Existing RCCB brackets usually use a snap-fit ​​method to fix the RCCBs during installation. This fixing method limits the size of the brackets. When workers install RCCBs, they often encounter the problem of the brackets and circuit breakers being incompatible. As a result, they have to spend a lot of time replacing the brackets with the appropriate specifications in order to complete the installation of the RCCBs. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology where the bracket and the circuit breaker are not compatible, and to propose a bracket for a residual current circuit breaker.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a bracket for a residual current circuit breaker, comprising a main frame, a base frame, and an adjustment device. The base frame is disposed on one side of the main frame, and the adjustment device is disposed on the surface of the main frame. The adjustment device includes movable blocks, two of which are placed on the surface between the main frame and the base frame. Rotating holes are provided on the surfaces of both sides of the main frame, and the two rotating holes are symmetrically arranged. A threaded rod is rotatably connected to the surface of the rotating hole. A threaded hole is provided on the surface of the movable block, and the threaded rod is threadedly connected to the surface of the threaded hole. Two auxiliary rods are fixedly connected to the surface of one side of the main frame, and the two auxiliary rods are located on both sides of the threaded rod. Two symmetrically arranged first sliding holes are provided on the surface of the movable block, and the auxiliary rods are slidably connected to the surface of the first sliding holes. An adjustment block is fixedly connected to the end of the threaded rod away from the movable block, and the two adjustment blocks are symmetrically arranged. The adjustment blocks can cooperate with the threaded rod to facilitate the worker's adjustment of the threaded rod.

[0007] Preferably, the base frame has three second sliding holes on its surface. The auxiliary rod is slidably connected to the surface of the second sliding hole, and the threaded rod is slidably connected to the surface of the second sliding hole. The second sliding hole can cooperate with the auxiliary rod and the threaded rod to achieve the purpose of storing the auxiliary rod and the threaded rod.

[0008] Preferably, the surface of the base frame is provided with a splicing device, the splicing device includes mounting blocks, a plurality of mounting blocks are fixedly connected to the surface of the base frame, the mounting blocks are inserted into the surface of the movable block, and the mounting blocks can cooperate with the base frame to achieve the purpose of supporting the mounting blocks.

[0009] Preferably, the surface of the movable block is provided with a placement groove, and two inserts are placed on the surface of the placement groove. A connecting block is fixedly connected between the two inserts. The connecting block is placed on the surface of the placement groove, and the placement groove can cooperate with the movable block to achieve the purpose of storing the inserts and the connecting block.

[0010] Preferably, a limiting rod is fixedly connected to the surface of the placement groove, and the connecting block is sleeved on the surface of the limiting rod. The limiting rod can cooperate with the placement groove to support the limiting rod and restrict the connecting block.

[0011] Preferably, the surface of the limiting rod is threaded with a nut, which is placed on the surface of the connecting block. The nut can cooperate with the limiting rod to limit the connecting block.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting an adjustment device, rotating the adjustment block drives the threaded rod, the threaded rod rotates and pushes the moving block. The moving block is guided and restricted by the auxiliary rod, and the moving block moves away from the main frame. The worker installs the base frame on the moving block. By setting the adjustment device, the worker can effectively adjust the specifications of the bracket, avoiding mismatch when installing the residual current circuit breaker, thus saving the worker's time to replace the bracket. At the same time, the worker can adjust the moving block to make the base frame tightly abut against the residual current circuit breaker. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a bracket for a residual current circuit breaker is provided for this utility model;

[0015] Figure 2 This utility model provides a schematic diagram of the adjustment device structure for a bracket of a residual current circuit breaker;

[0016] Figure 3 This utility model proposes a bracket for a residual current circuit breaker. Figure 2 Schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This utility model provides a schematic diagram of the splicing device structure for a bracket of a residual current circuit breaker;

[0018] Figure 5 This utility model proposes a bracket for a residual current circuit breaker. Figure 4 Schematic diagram of the structure at point B.

[0019] Legend:

[0020] 1. Main frame; 2. Base frame; 3. Adjustment device; 31. Rotating hole; 32. Adjusting block; 33. Auxiliary rod; 34. Threaded rod; 35. Second sliding hole; 36. First sliding hole; 37. Threaded hole; 38. Moving block; 4. Splicing device; 41. Insert strip; 42. Connecting block; 43. Placement groove; 44. Limiting rod; 45. Nut; 46. Mounting block. Detailed Implementation

[0021] Please see Figure 1-5 This utility model provides a technical solution: a bracket for a residual current circuit breaker, including a main frame 1, a base frame 2 and an adjustment device 3. The base frame 2 is disposed on one side of the main frame 1, and the adjustment device 3 is disposed on the surface of the main frame 1.

[0022] The specific settings and functions of the adjustment device 3 and the splicing device 4 will be explained in detail below.

[0023] In this embodiment: the adjusting device 3 includes two moving blocks 38, which are placed on the surface between the main frame 1 and the base frame 2. Rotating holes 31 are opened on the surfaces of both sides of the main frame 1. The two rotating holes 31 are symmetrically arranged. Threaded rods 34 are rotatably connected to the surfaces of the rotating holes 31. Threaded holes 37 are opened on the surfaces of the moving blocks 38. Threaded rods 34 are threadedly connected to the surfaces of the threaded holes 37. Two auxiliary rods 33 are fixedly connected to the surface of one side of the main frame 1. The two auxiliary rods 33 are located on both sides of the threaded rods 34. Two symmetrically arranged first sliding holes 36 are opened on the surface of the moving blocks 38. The auxiliary rods 33 are slidably connected to the surfaces of the first sliding holes 36.

[0024] Specifically, an adjusting block 32 is fixedly connected to the end of the threaded rod 34 away from the moving block 38. The two adjusting blocks 32 are symmetrically arranged. The adjusting blocks 32 can cooperate with the threaded rod 34 to facilitate the worker's adjustment of the threaded rod 34.

[0025] Specifically, the base frame 2 has three second sliding holes 35 on its surface. The auxiliary rod 33 is slidably connected to the surface of the second sliding hole 35, and the threaded rod 34 is slidably connected to the surface of the second sliding hole 35.

[0026] In this embodiment, the second sliding hole 35 can cooperate with the auxiliary rod 33 and the threaded rod 34 to achieve the purpose of accommodating the auxiliary rod 33 and the threaded rod 34.

[0027] In this embodiment: the surface of the base frame 2 is provided with a splicing device 4, the splicing device 4 includes a mounting block 46, multiple mounting blocks 46 are fixedly connected to the surface of the base frame 2, the mounting blocks 46 are inserted into the surface of the movable block 38, and the mounting blocks 46 can cooperate with the base frame 2 to achieve the purpose of supporting the mounting blocks 46.

[0028] Specifically, a limiting rod 44 is fixedly connected to the surface of the placement groove 43, and a connecting block 42 is sleeved on the surface of the limiting rod 44.

[0029] In this embodiment, the limiting rod 44 can cooperate with the placement groove 43 to achieve the purpose of supporting the limiting rod 44 and restricting the connecting block 42.

[0030] Specifically, the surface of the limiting rod 44 is threaded with a nut 45, which is placed on the surface of the connecting block 42.

[0031] In this embodiment, the nut 45 can cooperate with the limiting rod 44 to limit the connecting block 42.

[0032] Working principle: By setting the adjustment device 3, rotating the adjustment block 32 drives the threaded rod 34, which in turn rotates and pushes the moving block 38. The moving block 38 is guided and restricted by the auxiliary rod 33, moving away from the main frame 1. The worker installs the base frame 2 on the moving block 38. By setting the adjustment device 3, the worker can effectively adjust the specifications of the bracket, avoiding mismatch when installing the residual current circuit breaker, thus saving time for replacing the bracket. At the same time, the worker can adjust the moving block 38 to make the base frame 2 tightly abut against the residual current circuit breaker. In addition, by setting the splicing device 4, the worker first connects the residual current circuit breaker... The circuit breaker is placed on the main frame 1, and then the base frame 2 is placed on the moving block 38. The base frame 2 pushes the mounting block 46, and the mounting block 46 is inserted into the moving block 38. The connecting block 42 is sleeved on the limiting rod 44. The connecting block 42 drives the insert 41 to be inserted into the placement groove 43. The insert 41 is inserted into the surface of the mounting block 46. The nut 45 is placed on the limiting rod 44 and rotated. The nut 45 rotates and abuts against the connecting block 42. By setting the splicing device 4, it is possible to effectively facilitate the installation of the residual current circuit breaker by workers, avoiding the need for workers to use the snap-fit ​​method to install the residual current circuit breaker for a long time, thereby reducing the severe wear at the snap-fit ​​joint between the main frame 1 and the base frame 2.

Claims

1. A bracket for a residual current circuit breaker, comprising a main frame (1), a base frame (2), and an adjustment device (3), characterized in that: The base frame (2) is set on one side of the main frame (1), and the adjustment device (3) is set on the surface of the main frame (1). The adjustment device (3) includes a moving block (38). Two moving blocks (38) are placed on the surface between the main frame (1) and the base frame (2). Rotating holes (31) are opened on both sides of the main frame (1). The two rotating holes (31) are symmetrically arranged. A threaded rod (34) is rotatably connected to the surface of the rotating hole (31). A threaded hole (37) is opened on the surface of the moving block (38). The threaded rod (34) is threadedly connected to the surface of the threaded hole (37). Two auxiliary rods (33) are fixedly connected to one side of the main frame (1). The two auxiliary rods (33) are located on both sides of the threaded rod (34). Two symmetrically arranged first sliding holes (36) are opened on the surface of the moving block (38). The auxiliary rods (33) are slidably connected to the surface of the first sliding holes (36).

2. The bracket for a residual current circuit breaker according to claim 1, characterized in that: An adjusting block (32) is fixedly connected to one end of the threaded rod (34) away from the moving block (38), and the two adjusting blocks (32) are arranged symmetrically.

3. A bracket for a residual current circuit breaker according to claim 2, characterized in that: The base frame (2) has three second sliding holes (35) on its surface. The auxiliary rod (33) is slidably connected to the surface of the second sliding hole (35), and the threaded rod (34) is slidably connected to the surface of the second sliding hole (35).

4. A bracket for a residual current circuit breaker according to claim 1, characterized in that: The base frame (2) is provided with a splicing device (4), which includes a mounting block (46). Multiple mounting blocks (46) are fixedly connected to the surface of the base frame (2), and the mounting blocks (46) are inserted into the surface of the moving block (38).

5. A bracket for a residual current circuit breaker according to claim 4, characterized in that: The surface of the movable block (38) is provided with a placement groove (43), and two inserts (41) are placed on the surface of the placement groove (43). A connecting block (42) is fixedly connected between the two inserts (41), and the connecting block (42) is placed on the surface of the placement groove (43).

6. A bracket for a residual current circuit breaker according to claim 5, characterized in that: A limiting rod (44) is fixedly connected to the surface of the placement groove (43), and the connecting block (42) is sleeved on the surface of the limiting rod (44).

7. A bracket for a residual current circuit breaker according to claim 6, characterized in that: The surface of the limiting rod (44) is threaded with a nut (45), which is placed on the surface of the connecting block (42).

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