An adjustable angle magnetic arc extinguishing plate mounting bracket
By designing an adjustable angle magnetic blowout arc extinguishing plate mounting bracket, the problem of traditional arc extinguishing devices being unable to adapt to different working conditions was solved, achieving flexible adjustment and efficient arc extinguishing effect of the magnetic blowout arc extinguishing plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN JINLEFENG HARDWARE PARTS CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-21
Smart Images

Figure CN224536896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic blowout arc extinguishing plates, and in particular to an adjustable angle magnetic blowout arc extinguishing plate mounting bracket. Background Technology
[0002] Magnetic blowout arc extinguishing technology is a method that uses a magnetic field to rapidly elongate the electric arc and guide it into the arc extinguishing chamber, thereby achieving rapid arc extinguishing. In the field of low-voltage electrical appliances, especially in switchgear such as circuit breakers and contactors, the arc extinguishing system is one of the key components to ensure the safe and reliable operation of the equipment. When a short circuit or overload fault occurs in the circuit, a high-temperature electric arc will be generated during the disconnection process of the contacts. If it cannot be extinguished in time, it may cause equipment damage or even cause safety accidents.
[0003] Traditional arc extinguishing devices mostly use fixed arc extinguishing chambers or magnetic blowout arc extinguishing plates with fixed angles. They are simple in structure and low in cost, but they have certain limitations in practical applications. For example, the shape and movement path of the arc will be different in application scenarios with different current levels, different installation directions or different load types. The fixed-angle magnetic blowout arc extinguishing plate is difficult to adapt to these changes, resulting in unstable arc extinguishing efficiency and affecting breaking performance.
[0004] To address the above issues, it is necessary to design an adjustable-angle mounting bracket for the magnetic blowout arc extinguishing plate. Utility Model Content
[0005] To overcome the shortcomings of traditional arc extinguishing devices, which mostly adopt fixed structures, although simple and low-cost, they are difficult to adapt to changes in arc shape and path under different working conditions, resulting in unstable arc extinguishing efficiency and affecting breaking performance, this utility model provides an adjustable angle magnetic blowout arc extinguishing plate mounting bracket.
[0006] The technical solution of this utility model is as follows: An adjustable angle magnetic blowout arc extinguishing plate mounting bracket includes a first mounting plate, a sliding plate, a damping shaft, a rotating plate, a second mounting plate, a fixing screw, a magnetic blowout arc extinguishing plate, a first connecting plate, a guide rod, a lead screw, a lifting plate, a fixing ring, and a threaded sleeve. There are two first mounting plates, each with a sliding plate slidably connected inside. A damping shaft is rotatably connected to the side of each sliding plate away from the first mounting plate. A rotating plate is fixedly connected to the other end of each damping shaft. A second mounting plate is provided on the other side of each rotating plate. The upper part of each second mounting plate... The screw-type connection has two fixing screws, and multiple fixing screws are threadedly engaged with the corresponding rotating plates. A magnetic blowout extinguishing plate is connected between the two second mounting plates. A first connecting plate is fixedly connected to one side of the right sliding plate. A lead screw is slidably mounted on the first connecting plate. A guide rod is slidably connected to the side of the first connecting plate away from the lead screw. A lifting plate is set at the bottom of the lead screw and the bottom of the guide rod. The bottom of the lead screw is rotatably connected to the lifting plate. The bottom of the guide rod is fixedly connected to the lifting plate. A fixing ring is fixedly connected to the bottom of the lifting plate. A threaded sleeve is rotatably connected to the upper part of the first connecting plate. The threaded sleeve is threadedly engaged with the lead screw.
[0007] As an improvement to the above solution, it also includes a second connecting plate, a fixing rod, and a spring. The first mounting plate on the right side has multiple adjustment holes on its exterior. The sliding plate on the right side is fixedly connected to the second connecting plate. The fixing rod is slidably connected inside the second connecting plate. The fixing rod engages with the adjustment holes. A spring connects the fixing rod and the second connecting plate.
[0008] As an improvement to the above solution, it also includes a first connecting rod, which is fixedly connected to one side of the fixed rod.
[0009] As an improvement to the above solution, a second connecting rod is also included, which is fixedly connected to the threaded sleeve.
[0010] As an improvement to the above solution, an anti-slip pad is also included, with an anti-slip pad attached to the bottom of the fixing ring.
[0011] As an improvement to the above solution, the anti-slip mat is made of rubber.
[0012] The beneficial effects of this utility model are as follows: 1. In terms of angle adjustment, the linkage structure of the rotating plate, damping shaft, threaded sleeve, lead screw and lifting plate realizes the flexible adjustment of the tilt angle of the magnetic blowout arc extinguishing plate. The operator can manually rotate the magnetic blowout arc extinguishing plate to a suitable position according to the actual arc direction and equipment installation angle. Then, by rotating the threaded sleeve, the lead screw is driven to move downward, pushing the lifting plate and the bottom fixing ring to apply pressure to the damping shaft, thereby enhancing the friction of the rotating structure, realizing the stable locking of the angle, preventing deviation during use, and ensuring that the arc extinguishing plate is always aligned with the arc generation area.
[0013] 2. Regarding the adjustment of the front and rear positions, this device adopts a limiting mechanism consisting of a sliding plate, adjusting holes, a fixing rod, and a spring, which allows the magnetic arc extinguishing plate to move flexibly in the front and rear directions within the sliding groove of the first mounting plate. The operator only needs to pull the first connecting rod to release the limiting mechanism, and then push the second connecting plate to drive the magnetic arc extinguishing plate to slide back and forth. After adjusting to the appropriate position, the connecting rod is released, the spring automatically resets, and the fixing rod is re-engaged into the corresponding adjusting hole, achieving rapid positioning and stable locking. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is an exploded view of the sliding plate and the second mounting plate of this utility model.
[0016] Figure 3 This is an exploded view of the rotating plate and the second mounting plate of this utility model.
[0017] Figure 4 This is a cross-sectional view of the rotating plate of this utility model.
[0018] Figure 5 This is a cross-sectional view of the threaded sleeve of this utility model.
[0019] Figure 6 This is a three-dimensional structural diagram of the second connecting plate, fixing rod, spring, and other components of this utility model.
[0020] Labels in the diagram: 1: First mounting plate, 2: Sliding plate, 3: Damping shaft, 4: Rotating plate, 5: Second mounting plate, 6: Fixing screw, 7: Magnetic blowout arc extinguishing plate, 8: First connecting plate, 9: Guide rod, 10: Lead screw, 11: Lifting plate, 12: Fixing ring, 13: Threaded sleeve, 14: Adjusting hole, 15: Second connecting plate, 16: Fixing rod, 17: Spring, 18: First connecting rod, 19: Second connecting rod, 20: Anti-slip pad. Detailed Implementation
[0021] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.
[0022] Example: An adjustable-angle magnetic blowout arc extinguishing plate mounting bracket, such as... Figures 1-6As shown, the system includes a first mounting plate 1, a sliding plate 2, a damping shaft 3, a rotating plate 4, a second mounting plate 5, a fixing screw 6, a magnetic blowout extinguishing plate 7, a first connecting plate 8, a guide rod 9, a lead screw 10, a lifting plate 11, a fixing ring 12, a threaded sleeve 13, a second connecting plate 15, a fixing rod 16, a spring 17, a first connecting rod 18, a second connecting rod 19, and an anti-slip pad 20. There are two first mounting plates 1, each with a sliding plate 2 slidably connected inside. The side of each sliding plate 2 furthest from the first mounting plate 1 is rotatably connected to a damping shaft 3. The other end of each damping shaft 3 is fixedly connected to a rotating plate 4. On the other side of each of the two rotating plates 4, there is a second mounting plate 5. Two fixing screws 6 are threadedly connected to the upper part of each of the two second mounting plates 5. These fixing screws 6 are threaded into the corresponding rotating plates 4. A magnetic arc-extinguishing plate 7 is connected between the two second mounting plates 5. The magnetic arc-extinguishing plate 7 is used to generate a magnetic field in the electrical equipment, quickly extinguishing the arc through the magnetic blowing effect. A first connecting plate 8 is fixedly connected to one side of the right sliding plate 2. A lead screw 10 is slidably mounted on the first connecting plate 8. A guide rod 9 is slidably connected to the side of the first connecting plate 8 away from the lead screw 10. The guide rod 9 provides guidance for the lifting plate 11. The bottom of the lead screw 10 is connected to the guide rod 9. A lifting plate 11 is provided at the bottom of the guide rod 9. The bottom of the lead screw 10 is rotatably connected to the lifting plate 11. The bottom of the guide rod 9 is fixedly connected to the lifting plate 11. A fixing ring 12 is fixedly connected to the bottom of the lifting plate 11. A threaded sleeve 13 is rotatably connected to the upper part of the first connecting plate 8. The threaded sleeve 13 is threadedly engaged with the lead screw 10. Multiple adjustment holes 14 are provided on the outside of the first mounting plate 1 on the right side. A second connecting plate 15 is fixedly connected to the right side of the sliding plate 2 on the right side. A fixing rod 16 is slidably connected inside the second connecting plate 15. The fixing rod 16 engages with the adjustment holes 14. The fixing rod 16 limits the movement of the second connecting plate 15 to prevent the lead screw 10 from being moved. The two connecting plates 15 can slide freely. A spring 17 is connected between the fixing rod 16 and the second connecting plate 15. The spring 17 can provide elastic restoring force. After adjustment, the fixing rod 16 will automatically re-lock into the adjustment hole 14 to achieve the automatic locking function. A first connecting rod 18 is fixedly connected to one side of the fixing rod 16. A second connecting rod 19 is fixedly connected to the threaded sleeve 13. The second connecting rod 19 is used to manually rotate the threaded sleeve 13. An anti-slip pad 20 is pasted on the bottom of the fixing ring 12. The anti-slip pad 20 provides anti-slip and cushioning functions to prevent the fixing ring 12 from damaging the damping shaft 3 or other components when pressed down. The anti-slip pad 20 is made of rubber.
[0023] When this device is needed, the operator first places the entire device on the electrical equipment requiring arc treatment. Then, the two first mounting plates 1 are fixed in the appropriate positions on the equipment, completing the initial installation. Next, the matching second mounting plate 5 and the magnetic arc-extinguishing plate 7 are placed between the two rotating plates 4. The fixing screws 6 are aligned with the threaded holes on the rotating plate 4 and the second mounting plate 5, and tightened clockwise with a screwdriver to achieve a stable connection between the second mounting plate 5 and the rotating plate 4. When it is necessary to adjust the front and rear position of the magnetic arc-extinguishing plate 7, the operator... The operator pulls the first connecting rod 18 outward. At this time, the fixing rod 16 moves together with the second connecting plate 15 and disengages from the adjusting hole 14, releasing the restriction on the second connecting plate 15. Simultaneously, the spring 17 is compressed and undergoes elastic deformation. Subsequently, the operator can push the second connecting plate 15 in the front-back direction, causing the slider on the sliding plate 2 to slide in the groove of the first mounting plate 1, thereby realizing the overall front-back movement of the magnetic arc extinguishing plate 7. When the magnetic arc extinguishing plate 7 moves to the appropriate position, the first connecting rod 18 is released, the spring 17 returns to its original state, and the fixing rod 16 is pushed. 6. Re-engage the magnetic arc-extinguishing plate 7 into the corresponding adjustment hole 14 to complete the position locking and achieve precise positioning. If it is necessary to adjust the tilt angle of the magnetic arc-extinguishing plate 7, the operator can manually rotate the magnetic arc-extinguishing plate 7. This action will drive the rotating plate 4 and the second mounting plate 5 connected to it to rotate around the damping shaft 3. After rotating to the required angle, the operator rotates the threaded sleeve 13 clockwise. Since the threaded sleeve 13 is threadedly engaged with the lead screw 10, the lead screw 10 will rotate downward and move, driving the lifting plate 11, guide rod 9 and bottom connected to it. The fixed ring 12 moves down synchronously. When the fixed ring 12 descends to the appropriate position, it will apply pressure to the damping shaft 3, enhance the friction of the rotating structure, and thus prevent the magnetic blowout arc extinguishing plate 7 from shifting or loosening during use, thereby achieving stable angle fixation. This allows for the adjustment of the angle of the magnetic blowout arc extinguishing plate 7. Through the above operation process, operators can flexibly and conveniently complete the installation and adjustment of the magnetic blowout arc extinguishing plate 7, including front and rear position adjustment and angle adjustment, thereby ensuring that it can be accurately aligned with the arc generation area and achieve efficient and stable arc extinguishing effect.
[0024] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. An adjustable-angle magnetic blowout arc extinguishing plate mounting bracket, characterized in that: The system includes a first mounting plate (1), a sliding plate (2), a damping shaft (3), a rotating plate (4), a second mounting plate (5), fixing screws (6), a magnetic blowout extinguishing plate (7), a first connecting plate (8), a guide rod (9), a lead screw (10), a lifting plate (11), a fixing ring (12), and a threaded sleeve (13). There are two first mounting plates (1), each with a sliding plate (2) slidably connected inside. The side of each sliding plate (2) away from the first mounting plate (1) is rotatably connected to a damping shaft (3). The other end of each damping shaft (3) is connected to a rotating plate (4). A second mounting plate (5) is installed on the other side of each rotating plate (4). Each second mounting plate (5) has two fixing screws (6) threadedly connected to its upper part. The fixing screw (6) is threadedly engaged with the corresponding rotating plate (4). A magnetic blowout extinguishing plate (7) is connected between the two second mounting plates (5). A first connecting plate (8) is connected to one side of the sliding plate (2) on the right. A lead screw (10) is slidably provided on the first connecting plate (8). A guide rod (9) is slidably connected to the side of the first connecting plate (8) away from the lead screw (10). A lifting plate (11) is provided at the bottom of the lead screw (10) and the bottom of the guide rod (9). The bottom of the lead screw (10) is rotatably connected to the lifting plate (11). The bottom of the guide rod (9) is fixedly connected to the lifting plate (11). A fixing ring (12) is connected to the bottom of the lifting plate (11). A threaded sleeve (13) is rotatably connected to the upper part of the first connecting plate (8). The threaded sleeve (13) is threadedly engaged with the lead screw (10).
2. The adjustable-angle magnetic blowout arc extinguishing plate mounting bracket according to claim 1, characterized in that: It also includes a second connecting plate (15), a fixing rod (16) and a spring (17). The first mounting plate (1) on the right side has multiple adjustment holes (14) on its outside. The sliding plate (2) on the right side is connected to the second connecting plate (15). The fixing rod (16) is slidably connected inside the second connecting plate (15). The fixing rod (16) is engaged with the adjustment hole (14). A spring (17) is provided between the fixing rod (16) and the second connecting plate (15).
3. The adjustable-angle magnetic blowout arc extinguishing plate mounting bracket according to claim 2, characterized in that: It also includes a first connecting rod (18), and one side of the fixing rod (16) is connected to the first connecting rod (18).
4. The adjustable-angle magnetic blowout arc extinguishing plate mounting bracket according to claim 3, characterized in that: It also includes a second connecting rod (19), which is connected to the threaded sleeve (13).
5. An adjustable-angle magnetic blowout arc extinguishing plate mounting bracket according to claim 4, characterized in that: It also includes an anti-slip pad (20), and the bottom of the fixing ring (12) is attached with an anti-slip pad (20).
6. An adjustable-angle magnetic blowout arc extinguishing plate mounting bracket according to claim 5, characterized in that: The anti-slip mat (20) is made of rubber.