A circuit breaker explosion-proof operating mechanism
By combining the bracket and slide rail structure with the copper sleeve explosion-proof shaft, the problem of traditional circuit breakers being unable to be uniformly controlled and adjusted in position is solved, enabling flexible installation and convenient operation of the circuit breaker.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA HELON EXPLOSION PROOF ELECTRIC
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
Smart Images

Figure CN224501847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit breaker technology, and in particular to an explosion-proof operating mechanism for a circuit breaker. Background Technology
[0002] A circuit breaker is a circuit protection device that can connect or disconnect a circuit under normal or fault conditions. When the current is abnormal, it will automatically cut off the power supply to prevent equipment damage and accidents. Classified by the arc-extinguishing medium, such as oil and vacuum, circuit breakers are widely used in power systems, construction, and other fields, and are key equipment for ensuring circuit safety.
[0003] Traditional circuit breakers have an independent structure, and when toggling the switch, they can only be toggled sequentially, resulting in time differences in the operation of the controlled circuits. They cannot achieve unified opening and closing for circuits that need to operate simultaneously. Furthermore, traditional circuit breakers are bolted to the enclosure, which is cumbersome. The circuit breaker structure cannot be adjusted to meet specific needs, thus limiting the installation of the circuit breakers. Also, the internal circuit breakers cannot be controlled to open and close when the cabinet door is closed.
[0004] Based on this, an explosion-proof operating mechanism for circuit breakers is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide an explosion-proof operating mechanism for circuit breakers in order to solve the above-mentioned problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An explosion-proof operating mechanism for a circuit breaker includes a bracket, a circuit breaker connected to the bracket, a sliding column connected to the upper end of the bracket, a mounting plate connected to the sliding column, a rotating plate connected to the outer side of the mounting plate, a slot formed on the mounting plate, a copper sleeve connected to the slot, an explosion-proof shaft connected to the copper sleeve, and an arc groove formed on the mounting plate.
[0008] Preferably, the circuit breaker is installed in a housing with a slide rail, and the bracket is slidably connected to the slide rail.
[0009] Preferably, a slider is connected to the bracket, and the slider is slidably connected to the slide rail.
[0010] Preferably, a hinge frame is connected to the bracket, a pressing bar is rotatably connected to the hinge frame, a spring is connected between the pressing bar and the bracket, and a traction rope is connected to the pressing bar.
[0011] Preferably, the pressing strip is connected to an anti-slip block.
[0012] Preferably, the bracket has a through hole, the traction rope is connected to the through hole, and one end of the traction rope is connected to a pull ring.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0014] 1. This application achieves unified control of multiple circuit breakers by adopting a structure in which multiple switches are connected to a single lever. Furthermore, the circuit breakers can slide along the slide rail, allowing for arbitrary changes in their positions to meet various installation requirements. Utilizing a separate installation structure between the copper sleeve, the explosion-proof shaft, and the circuit breaker, operators can control the opening and closing of the circuit breakers from outside the cabinet.
[0015] 2. This application uses an anti-slip block, which abuts against the slide rail, so that the circuit breaker can remain stably in place after installation. When it is necessary to change the position of the circuit breaker, only the pull ring needs to be pulled. Attached Figure Description
[0016] Figure 1 A schematic diagram of the circuit breaker provided according to an embodiment of the present invention is shown;
[0017] Figure 2 A schematic diagram of the structure of the bracket connection provided according to an embodiment of the present invention is shown;
[0018] Figure 3 A schematic diagram of the structure of the press bar connection provided according to an embodiment of the present invention is shown;
[0019] Figure 4 A schematic diagram of the traction rope connection provided according to an embodiment of the present invention is shown.
[0020] Legend:
[0021] 1. Bracket; 2. Mounting plate; 3. Rotating plate; 4. Copper sleeve; 5. Explosion-proof shaft; 6. Sliding column; 7. Arc groove; 8. Sliding block; 9. Pressing strip; 10. Hinge frame; 11. Anti-sliding block; 12. Traction rope; 13. Pull ring; 14. Slot; 15. Through hole; 16. Spring; 17. Slide rail. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-3 This utility model provides a technical solution:
[0024] An explosion-proof operating mechanism for a circuit breaker includes a bracket 1, on which a circuit breaker is connected. A sliding column 6 is connected to the upper end of the bracket 1, and a mounting plate 2 is connected to the sliding column 6. A rotating plate 3 is connected to the outer side of the mounting plate 2. A slot 14 is provided on the mounting plate 2, and a copper sleeve 4 is connected to the slot 14. An explosion-proof shaft 5 is connected to the copper sleeve 4. An arc groove 7 is provided on the mounting plate 2. To prevent the electric arc, sparks and high temperature that may be generated inside the enclosure from igniting flammable gases and dust in the surrounding environment, an explosion-proof shaft 5 structure is adopted to achieve the explosion-proof requirements.
[0025] Specifically, such as Figure 1 and Figure 2 As shown, the circuit breaker is installed in a box with a slide rail 17 connected to it, and the bracket 1 is slidably connected to the slide rail 17.
[0026] Specifically, such as Figure 2 As shown, a slider 8 is connected to the bracket 1, and the slider 8 is slidably connected to the slide rail 17. By setting the slider 8, the stability of the bracket 1 sliding on the slide rail 17 is improved.
[0027] Specifically, such as Figure 3 As shown, a hinge frame 10 is connected to the bracket 1, and a pressing strip 9 is rotatably connected to the hinge frame 10. By setting the hinge frame 10, the stability of the rotation of the pressing strip 9 is improved. A spring 16 is connected between the pressing strip 9 and the bracket 1, and a traction rope 12 is connected to the pressing strip 9.
[0028] Specifically, such as Figure 3 As shown, an anti-slip block 11 is connected to the pressing strip 9, and the anti-slip effect is improved by setting the anti-slip block 11.
[0029] Specifically, such as Figure 4 As shown, the bracket 1 has a through hole 15, and the traction rope 12 is connected to the through hole 15. One end of the traction rope 12 is connected to a pull ring 13. There are two through holes 15, which are respectively located at the upper and lower ends of the bracket 1. The lower end of the pull ring 13 abuts against the through hole 15 located at the upper end. When the pull ring 13 is pulled, the pressing strip 9 can be driven to deflect upward. The pull ring 13 is provided to facilitate the operation of the installer.
[0030] In summary, the circuit breaker explosion-proof operating mechanism provided in this embodiment allows the circuit breaker to be installed on the bracket 1 when it needs to be installed in the cabinet. Then, the slider 8 connected to the lower end of the bracket 1 is inserted into the slide rail 17 in the cabinet. When the bracket 1 needs to be moved, the pull ring 13 is pulled to drive the pressing strip 9 to press the spring 16, so that the anti-sliding slider 11 will not abut against the slide rail 17, making it convenient for the bracket 1 to move freely on the slide rail 17.
[0031] To achieve unified control of the circuit breakers, the circuit breakers are arranged and connected in sequence, and all their levers are connected to a single lever. This lever is then inserted into a slot on the rotating plate 3. When the rotating plate 3 rotates, it can drive multiple circuit breakers to open and close. Afterward, the cabinet door is closed, ensuring that the copper sleeve 4 and the explosion-proof shaft 5 are engaged in the holes on the cabinet door. The structure of the explosion-proof shaft 5 is exposed outside the cabinet. At this point, the circuit breakers can be controlled without opening the cabinet door.
[0032] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A circuit breaker explosion-proof operating mechanism, comprising a bracket (1), characterized in that, A circuit breaker is connected to the bracket (1), a sliding column (6) is connected to the upper end of the bracket (1), an mounting plate (2) is connected to the sliding column (6), a rotating piece (3) is connected to the outside of the mounting plate (2), a slot (14) is provided on the mounting plate (2), a copper sleeve (4) is connected to the slot (14), an explosion-proof shaft (5) is connected to the copper sleeve (4), and an arc groove (7) is provided on the mounting plate (2).
2. The explosion-proof operating mechanism for a circuit breaker according to claim 1, characterized in that, The circuit breaker is installed in a housing with a slide rail (17) connected to it, and the bracket (1) is slidably connected to the slide rail (17).
3. The explosion-proof operating mechanism for a circuit breaker according to claim 2, characterized in that, A slider (8) is connected to the bracket (1), and the slider (8) is slidably connected to the slide rail (17).
4. The explosion-proof operating mechanism for a circuit breaker according to claim 1, characterized in that, A hinge frame (10) is connected to the bracket (1), a pressing strip (9) is rotatably connected to the hinge frame (10), a spring (16) is connected between the pressing strip (9) and the bracket (1), and a traction rope (12) is connected to the pressing strip (9).
5. The explosion-proof operating mechanism for a circuit breaker according to claim 4, characterized in that, An anti-slip block (11) is connected to the pressing strip (9).
6. The explosion-proof operating mechanism for a circuit breaker according to claim 4, characterized in that, The bracket (1) has a through hole (15), the traction rope (12) is connected to the through hole (15), and one end of the traction rope (12) is connected to a pull ring (13).