Locking lock for miniature circuit breaker

Abstract

The utility model discloses a miniature circuit breaker locking lockset, which belongs to the technical field of miniature circuit breakers and comprises a circuit breaker body, a protective shell is movably connected to the front surface of the circuit breaker body, clamping grooves are arranged on two sides of the circuit breaker body, clamping blocks are arranged on two sides of the protective shell, the protective shell is clamped in the clamping grooves through the clamping blocks, and the circuit breaker body is connected with the circuit breaker body. Limiting blocks are arranged on the outer sides of the clamping grooves, a mounting plate is arranged behind the protective shell, the clamping blocks on the protective shell are connected into the clamping grooves in the two sides of the circuit breaker body, the front face of the circuit breaker body is protected, isolation, locking and label hanging are conducted on the miniature circuit breaker, and meanwhile others are prevented from operating a switch of the miniature circuit breaker and detaching a lock at will. Potential safety hazards possibly caused by misoperation are effectively prevented, and the safety performance of the device is improved; through the arrangement of the mounting plate, the mounting block, the sliding block and the sliding groove, the circuit breaker body can be locked and fixed on a wall body at the same time, and convenience is brought to the mounting work of the circuit breaker body.

Description

Technical Field

[0001] The utility model belongs to the technical field of miniature circuit breakers, and in particular relates to a locking device for miniature circuit breakers. Background Art

[0002] Miniature circuit breaker, referred to as MCB (Micro Circuit Breaker / Miniature Circuit Breaker), is the most widely used terminal protection device in building electrical terminal distribution devices. It is used for short circuit, overload, overvoltage and other protection of single-phase and three-phase below 125A, including single-pole 1P, two-pole 2P, three-pole 3P, four-pole 4P.

[0003] The main working principle of the miniature circuit breaker is: when the circuit is short-circuited or severely overloaded, the armature of the overcurrent release is attracted, the free tripping mechanism is activated, and the main contact disconnects the main circuit. When the circuit is overloaded, the thermal element of the thermal release heats up to bend the bimetallic strip, pushing the free tripping mechanism to operate. When the circuit is undervoltage, the armature of the undervoltage release is released, and the free tripping mechanism is also activated.

[0004] When inspecting or repairing electrical equipment, in order to ensure the normal operation of the inspection and maintenance work, it is first necessary to disconnect the power supply of the inspection and maintenance equipment and ensure that the inspection and maintenance equipment will not be powered on manually during the inspection and maintenance process. However, the existing miniature circuit breakers do not have the locking conditions. During the inspection and maintenance of electrical equipment, the above isolation, locking and tagging requirements cannot be met, which may pose a safety hazard and affect subsequent use. For this reason, we propose a miniature circuit breaker locking lock. Utility Model Content

[0005] The purpose of the utility model is to provide a miniature circuit breaker locking lock to solve the problem that the existing miniature circuit breakers mentioned in the above background technology do not have the locking conditions, and in the process of repairing electrical equipment, the above isolation, locking and tagging requirements cannot be met, which may pose a safety hazard and affect subsequent use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a miniature circuit breaker locking lock, comprising a circuit breaker body, a protective shell movably connected to the front of the circuit breaker body, card slots are provided on both sides of the circuit breaker body, the card slots are fixedly connected to the two sides of the circuit breaker body, card blocks are provided on both sides of the protective shell, the card blocks are adapted to the card slots, the protective shell is clamped in the card slots through the card blocks, a limit block is provided on the outside of the card slot, the limit block extends to the inside of the card block, a mounting plate is provided at the rear of the protective shell, the mounting plate is movably connected to the rear of the protective shell, two positioning holes are provided on the front of the circuit breaker body, a partition is provided on the front of the positioning hole, two positioning holes are also provided on the front of the partition, and the partition is movably connected to the front of the positioning hole.

[0007] Preferably, a No. 1 limiting hole is provided on the outside of the card slot, and the No. 1 limiting hole extends into the inside of the card slot. A No. 2 limiting hole is provided inside the card block, and the No. 2 limiting hole runs through both sides of the card block. The No. 1 limiting hole and the No. 2 limiting hole have the same specifications, and the No. 1 limiting hole and the No. 2 limiting hole are internally engaged with the limiting blocks.

[0008] Preferably, the protective shell is provided with a transparent observation port on both the upper and lower sides and the front side, and the protective shell and the transparent observation port are both made of insulating materials.

[0009] Preferably, a vertical plate is fixedly connected to the bottom of the protective shell, and a placement platform is fixedly connected to the bottom of the vertical plate.

[0010] Preferably, a slider is provided on the front of the mounting plate, and the sliders are two in number and fixedly connected to the upper and lower sides of the front of the mounting plate. Two sliding grooves are provided at the rear of the protective shell, and the sliding grooves are adapted to the sliders. The protective shell is slidably connected to the front of the mounting plate through the sliding grooves.

[0011] Preferably, mounting blocks are fixedly connected to both sides of the installation, the number of the mounting blocks is four, and mounting holes are provided inside the mounting blocks.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Fix the mounting plate on the wall, connect the blocks on the protective shell into the slots on both sides of the circuit breaker body, connect the protective shell to the front of the circuit breaker body, and then connect the limit block to the inside of the block. Then, clamp the partition on the front of the circuit breaker body, and drive specific screws into the positioning holes to fix the partition on the front of the circuit breaker body. The inspection and maintenance personnel install the partition with special tools and screws. When removing the partition, the inspection and maintenance personnel also need to use special tools to remove it, which can prevent other personnel from removing the partition and closing the switch, thereby protecting the front of the circuit breaker body. While isolating, locking, and tagging the miniature circuit breaker, it prevents others from arbitrarily operating the switch of the miniature circuit breaker and removing the lock, effectively preventing the safety hazards caused by misoperation and improving the safety performance of the device.

[0014] 2. The vertical plate and placement platform can be used to store related tools, which improves the practicality of the device. The mounting plate, mounting block, slider and slide groove can be used to lock the circuit breaker body and fix it to the wall at the same time, which brings convenience to the installation of the circuit breaker body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the separation structure of the protective shell and the circuit breaker body of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the clamping block, clamping slot and limiting block of the utility model;

[0018] Figure 4 It is a schematic diagram of the split structure of the partition and the circuit breaker body of the utility model.

[0019] In the figure: 1. Circuit breaker body; 2. Protective shell; 3. Card slot; 4. Card block; 5. Limit block; 6. Mounting plate; 7. Limit hole No. 1; 8. Limit hole No. 2; 9. Transparent observation port; 10. Vertical plate; 11. Placement platform; 12. Slider; 13. Slide; 14. Mounting block; 15. Mounting hole; 16. Positioning hole; 17. Partition. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution for locking a miniature circuit breaker: it includes a circuit breaker body 1, a protective shell 2 is movably connected to the front of the circuit breaker body 1, card slots 3 are arranged on both sides of the circuit breaker body 1, the card slots 3 are fixedly connected to both sides of the circuit breaker body 1, card blocks 4 are arranged on both sides of the protective shell 2, the card blocks 4 are adapted to the card slots 3, the protective shell 2 is clamped in the card slots 3 through the card blocks 4, a limit block 5 is arranged on the outside of the card slot 3, the limit block 5 extends to the inside of the card block 4, a mounting plate 6 is arranged at the rear of the protective shell 2, the mounting plate 6 is movably connected to the rear of the protective shell 2, two positioning holes 16 are arranged on the front of the circuit breaker body 1, two positioning holes 16 are also arranged on the front of the partition 17, a partition 17 is arranged on the front of the positioning hole 16, and the partition 17 is movably connected to the front of the positioning hole 16.

[0022] Specifically, a No. 1 limiting hole 7 is provided on the outside of the slot 3, and the No. 1 limiting hole 7 extends into the inside of the slot 3. A No. 2 limiting hole 8 is provided inside the block 4, and the No. 2 limiting hole 8 runs through both sides of the block 4. The No. 1 limiting hole 7 and the No. 2 limiting hole 8 have the same specifications, and the No. 1 limiting hole 7 and the No. 2 limiting hole 8 are internally connected with the limiting block 5.

[0023] Specifically, a transparent observation port 9 is provided on both the upper and lower sides and the front of the protective shell 2 , and the protective shell 2 and the transparent observation port 9 are both made of insulating materials.

[0024] Specifically, a vertical plate 10 is fixedly connected to the bottom of the protective shell 2 , and a placement platform 11 is fixedly connected to the bottom of the vertical plate 10 .

[0025] Specifically, a slider 12 is provided on the front of the mounting plate 6. There are two sliders 12 and they are fixedly connected to the upper and lower sides of the front of the mounting plate 6. Two slide grooves 13 are provided on the rear of the protective shell 2. The slide grooves 13 are adapted to the slider 12. The protective shell 2 is slidably connected to the front of the mounting plate 6 through the slide grooves 13.

[0026] Specifically, mounting blocks 14 are fixedly connected to both sides of the mounting plate 6 . There are four mounting blocks 14 , and mounting holes 15 are provided inside the mounting blocks 14 .

[0027] In this embodiment, when the device is used, the mounting plate 6 is fixed to the wall, and then the blocks 4 on the protective shell 2 are connected to the slots 3 on both sides of the circuit breaker body 1, the protective shell 2 is connected to the front of the circuit breaker body 1, and then the limit block 5 is clamped inside the block 4, and then the partition 17 is clamped on the front of the circuit breaker body 1, and a specific screw is nailed into the positioning hole 16 to fix the partition 17 on the front of the circuit breaker body 1. The inspection and maintenance personnel install the partition 17 with special tools and screws. When removing the partition 17, the inspection and maintenance personnel also need to use special tools to remove it, which can prevent other personnel from removing the partition 17 and closing the circuit breaker, thereby The front of the circuit breaker body 1 is protected. While isolating, locking and tagging the miniature circuit breaker, it prevents others from arbitrarily operating the switch of the miniature circuit breaker and removing the lock, effectively preventing the potential safety hazards caused by misoperation and improving the safety performance of the device. The vertical plate 10 and the placement platform 11 can be used to store related tools to improve the practicality of the device. The transparent observation port 9 is convenient for viewing the operating status of the circuit breaker body 1. The mounting plate 6, the mounting block 14, the slider 12 and the slide groove 13 can be used to lock the circuit breaker body 1 and fix it to the wall, which facilitates the installation of the circuit breaker body 1.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

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

Claims

1. A miniature circuit breaker locking device, comprising a circuit breaker body (1), characterized in that: The front of the circuit breaker body (1) is movably connected with a protective shell (2); slots (3) are provided on both sides of the circuit breaker body (1); the slots (3) are fixedly connected to both sides of the circuit breaker body (1); blocks (4) are provided on both sides of the protective shell (2); the blocks (4) are adapted to the slots (3); the protective shell (2) is clamped in the slots (3) through the blocks (4); a limit block (5) is provided on the outside of the slots (3); the limit block (5) extends into the block (4); a mounting plate (6) is provided at the rear of the protective shell (2); the mounting plate (6) is movably connected to the rear of the protective shell (2); two positioning holes (16) are provided at the front of the circuit breaker body (1); a partition (17) is provided at the front of the positioning hole (16); two positioning holes (16) are also provided at the front of the partition (17); the partition (17) is movably connected to the front of the positioning hole (16).

2. The miniature circuit breaker locking device according to claim 1, characterized in that: A first limiting hole (7) is provided on the outside of the clamping slot (3), and the first limiting hole (7) extends into the inside of the clamping slot (3). A second limiting hole (8) is provided inside the clamping block (4), and the second limiting hole (8) runs through both sides of the clamping block (4). The first limiting hole (7) and the second limiting hole (8) have the same specifications, and the first limiting hole (7) and the second limiting hole (8) are internally clamped with the limiting block (5).

3. The miniature circuit breaker locking device according to claim 1, characterized in that: The protective shell (2) is provided with a transparent observation port (9) on both the upper and lower sides and the front side, and the protective shell (2) and the transparent observation port (9) are both made of insulating materials.

4. The miniature circuit breaker locking device according to claim 1, characterized in that: The bottom of the protective shell (2) is fixedly connected to a vertical plate (10), and the bottom of the vertical plate (10) is fixedly connected to a placement platform (11).

5. The miniature circuit breaker locking device according to claim 1, characterized in that: The front of the mounting plate (6) is provided with a slider (12), the sliders (12) are two in number and are fixedly connected to the upper and lower sides of the front of the mounting plate (6), the rear of the protective shell (2) is provided with two slide grooves (13), the slide grooves (13) are adapted to the sliders (12), and the protective shell (2) is slidably connected to the front of the mounting plate (6) via the slide grooves (13).

6. The miniature circuit breaker locking device according to claim 5, characterized in that: Mounting blocks (14) are fixedly connected to both sides of the mounting plate (6), the number of the mounting blocks (14) is four, and mounting holes (15) are provided inside the mounting blocks (14).

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