An arc-extinguishing explosion-proof surge arrester
The explosion-proof structure, consisting of an explosion-proof mounting base, an explosion-proof isolation frame, and a lifting frame, solves the explosion-proof problem of the surge arrester bracket during lightning strikes, thereby improving the safety and flexibility of the surge arrester.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DENGGAO ELECTRIC
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-30
AI Technical Summary
Existing surge arrester bracket designs are inadequate and cannot effectively prevent explosive gases or pressures during lightning strikes, leading to bracket deformation, damage, or even safety accidents. Furthermore, improper material selection affects explosion-proof performance.
The explosion-proof structure consists of explosion-proof mounting bases, explosion-proof isolation frames, explosion-proof plates, and lifting frames. The angle and height of the surge arrester can be adjusted through fasteners and hinge structures, forming an effective explosion-proof cavity and enhancing the explosion-proof performance of the bracket.
It significantly enhances the explosion-proof performance of surge arresters, ensures equipment safety, adapts to different installation environments, and improves the safety and convenience of the equipment.
Smart Images
Figure CN224437304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surge arresters, and in particular to an arc-extinguishing explosion-proof surge arrester. Background Technology
[0002] An arc-extinguishing surge arrester is a combination of a surge arrester and an arc-extinguishing device, integrating the functional characteristics of both. However, the academic community tends to focus on the surge arrester itself and its arc-extinguishing mechanism because "arc-extinguishing surge arrester" has not yet become a standardized technical term. As an electrical device, the primary function of a surge arrester is to protect electrical equipment from damage caused by lightning or power system overvoltages. This device is typically connected in parallel between a live conductor and ground. When an overvoltage is detected exceeding a preset operating threshold, the surge arrester immediately activates, limiting the peak value of the overvoltage through a discharge process, thereby ensuring the insulation safety of the equipment. Once the voltage drops back to normal levels, the surge arrester quickly returns to its initial state, ensuring a continuous and stable power supply to the power system. Three basic prerequisites for a surge arrester to function effectively are: its volt-second characteristics must match the volt-second characteristics of the protected insulation material; the residual voltage of the surge arrester must be lower than the impulse electrical strength of the protected insulation; and the protected insulation material must be within the protection range of the surge arrester. Arc-extinguishing performance is one of the core considerations in the design and application of surge arresters. To ensure that the surge arrester can quickly extinguish the electric arc after it operates and avoid damage to the equipment caused by the continuous burning of the arc, surge arresters are usually equipped with special arc extinguishing structures or use specific materials, such as the gas generation tube in the tubular surge arrester and the nonlinear resistor in the valve-type surge arrester.
[0003] In practical applications of arc-extinguishing surge arresters, the arresters are typically mounted on brackets at their base. However, some arrester bracket designs may be overly simplified, failing to adequately consider the explosive gases or pressures that may be generated when the arrester is struck by lightning. When the arrester responds to and absorbs a large amount of lightning energy, a high-temperature and high-pressure environment may be generated inside. If the explosion-proof design of the bracket is insufficient, it may not be able to withstand this extreme pressure, leading to bracket deformation, damage, or even more serious safety accidents.
[0004] Furthermore, the choice of materials for the support structure is also limited; materials with sufficient strength and corrosion resistance may not be used, which also affects its explosion-proof performance. During long-term use, the support structure may gradually fail due to environmental corrosion, mechanical stress, and other factors, further weakening its explosion-proof capability. Utility Model Content
[0005] The main objective of this invention is to provide an arc-extinguishing explosion-proof surge arrester that can effectively solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] An arc-extinguishing explosion-proof surge arrester includes an explosion-proof mounting base and a surge arrester body, wherein the surge arrester body is mounted on the explosion-proof mounting base;
[0008] The explosion-proof mounting base is connected to an explosion-proof isolation frame by fasteners. An explosion-proof cavity is provided between the explosion-proof isolation frame and the explosion-proof mounting base. An explosion-proof plate is placed in the explosion-proof cavity. The explosion-proof isolation frame, the explosion-proof plate, and the explosion-proof mounting base achieve explosion protection at the bottom of the surge arrester.
[0009] The lower end of the explosion-proof mounting base is connected to an adjustable top frame, which is connected to an adjustable base frame via a fixing component. The side walls of the adjustable top frame and the adjustable base frame are provided with arc-shaped grooves that are compatible with the fixing component. The adjustable base frame is connected to a first lifting frame via a first rotating shaft, and the lower end of the first lifting frame is connected to a second lifting frame. The second lifting frame is connected to a stabilizing seat via a second rotating shaft. The angle of the surge arrester body can be adjusted via the fixing component and the arc-shaped groove, and the height of the surge arrester body can be adjusted via the lifting frame.
[0010] In a preferred embodiment of this application, the explosion-proof isolation frame and the explosion-proof mounting base are similar in shape, and the explosion-proof isolation frame and the explosion-proof mounting base have round holes that are aligned. The fasteners include fastening screws, fastening nuts, and anti-slip washers. The fastening screws are inserted into the openings of the protruding parts of the explosion-proof isolation frame and the explosion-proof mounting base, and the fastening nuts and anti-slip washers are fitted on them to achieve fixation.
[0011] In a preferred embodiment of this application, the fasteners adjust the distance between the explosion-proof isolation frame and the explosion-proof mounting base, thereby adjusting the size of the explosion-proof cavity used to store the explosion-proof plate;
[0012] In a preferred embodiment of this application, the adjusting top frame is fixed to the explosion-proof isolation frame by bolts. Both the adjusting top frame and the adjusting bottom frame are U-shaped, with their openings facing each other. Anti-slip strips are provided at the connection between the adjusting top frame and the adjusting bottom frame. The fixing components include a throttle, bolts, and anti-slip washers. The anti-slip washers are fitted onto the bolts, and the bolts pass through the arc-shaped grooves of the adjusting top frame and the adjusting bottom frame and are inserted into the screw holes of the throttle to achieve fixation.
[0013] In the preferred embodiment of this application, the first lifting frame and the second lifting frame are fixed by fastening bolts, anti-slip washers and nuts, and the two lifting frames are fixed by fastening bolts, anti-slip washers and nuts. The first rotating shaft and the second rotating shaft are both hinge structures, and the lifting frame is connected to the equipment by the hinge structure. The hinge is fixed by bolts.
[0014] In a preferred embodiment of this application, the end face of the stabilizer is provided with mounting holes, the surface of the stabilizer is provided with anti-slip pads, and the first lifting frame and the second lifting frame are symmetrically distributed on the stabilizer to maintain the stability of the explosion-proof isolation frame.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The explosion-proof isolation mechanism, through the coordinated action of the explosion-proof isolation frame, explosion-proof plate, and explosion-proof mounting base, forms an effective explosion-proof cavity, significantly enhancing the explosion-proof performance of the arrester's base. This design prevents damage to the arrester and surrounding equipment caused by lightning strikes and explosions, improving equipment safety.
[0017] The adjustment mechanism, through the coordination of the top frame, base frame, and fixing components, enables flexible adjustment of the surge arrester's angle. This design allows the surge arrester to adapt to the needs of different installation environments, ensuring optimal lightning protection performance in various scenarios. Simultaneously, the adjustment mechanism facilitates easy adjustment of the surge arrester's angle by installation and maintenance personnel according to actual needs, improving the equipment's practicality and convenience.
[0018] The lifting mechanism, through the cooperation of the first lifting frame, the second lifting frame, and the stabilizing base, enables precise adjustment of the surge arrester's height. This design not only allows the surge arrester to adapt to different installation height requirements but also ensures its stability during installation, preventing safety hazards caused by improper height. Simultaneously, the lifting mechanism facilitates height adjustment by installation and maintenance personnel, improving the equipment's operability and flexibility. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a front view of the overall structure of this utility model;
[0021] Figure 3 This is a side view of the overall structure of this utility model;
[0022] Figure 4 The diagram shows the explosion-proof isolation mechanism, lifting frame, and stabilizing base of this utility model.
[0023] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.
[0024] In the figure: 1. Explosion-proof isolation frame; 2. Explosion-proof mounting base; 3. Fastener; 4. Explosion-proof cavity; 5. Lightning arrester body; 6. Adjustable top frame; 7. Adjustable base frame; 8. Arc groove; 9. Fixing component; 10. First lifting frame; 11. First rotating shaft; 12. Second lifting frame; 13. Stabilizing seat; 14. Second rotating shaft. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] like Figure 1 - Figure 5 As shown, an arc-extinguishing explosion-proof surge arrester has a unique design and reasonable structure, which can effectively prevent lightning strikes and explosions. The surge arrester mainly consists of two parts: an explosion-proof mounting base 2 and a surge arrester body 5, with the surge arrester body 5 cleverly mounted on the explosion-proof mounting base 2.
[0027] To further enhance the safety performance of the surge arrester, the explosion-proof mounting base 2 is tightly connected to the explosion-proof isolation frame 1 via fasteners 3. An explosion-proof cavity 4 is specially designed between the explosion-proof isolation frame 1 and the explosion-proof mounting base 2, and a special explosion-proof plate is placed inside the cavity. This design, through the synergistic effect of the explosion-proof isolation frame 1, the explosion-proof plate, and the explosion-proof mounting base 2, ensures the explosion-proof performance of the bottom of the surge arrester.
[0028] To adapt to different installation environments, an adjustable top bracket 6 is connected to the lower end of the explosion-proof mounting base 2. The adjustable top bracket 6 is connected to the adjustable base bracket 7 via a fixing member 9, and both have arc-shaped grooves 8 on their side walls that are compatible with the fixing member 9. The adjustable base bracket 7 is connected to the first lifting frame 10 via a first rotating shaft 11, and the lower end of the first lifting frame 10 is connected to a second lifting frame 12. The second lifting frame 12 is connected to the stabilizing base 13 via a second rotating shaft 14, thereby enabling flexible adjustment of the angle and precise adjustment of the height of the surge arrester body 5.
[0029] In terms of structural design, the explosion-proof isolation frame 1 and the explosion-proof mounting base 2 are similar in shape, both having round holes that are perfectly aligned. The fastener 3 consists of a fastening screw, a fastening nut, and an anti-slip washer. The fastening screw is inserted into the openings of the protruding parts of the explosion-proof isolation frame 1 and the explosion-proof mounting base 2, and is secured by the fastening nut and anti-slip washer. By adjusting the fastener 3, the distance between the explosion-proof isolation frame 1 and the explosion-proof mounting base 2 can be changed, thereby adjusting the size of the explosion-proof cavity 4 used to store the explosion-proof plate.
[0030] The adjusting top frame 6 is fixed to the explosion-proof isolation frame 1 by bolts. Both the adjusting top frame 6 and the adjusting base frame 7 adopt a "U"-shaped design with their openings facing each other. Anti-slip strips are also provided at the connection between the adjusting top frame 6 and the adjusting base frame 7 to enhance stability. The fixing component 9 includes a throttle, bolts, and anti-slip washers. The anti-slip washers are fitted onto the bolts, and the bolts pass through the arc-shaped grooves 8 of the adjusting top frame 6 and the adjusting base frame 7, inserting into the screw holes of the throttle, thereby achieving fixation.
[0031] The first lifting frame 10 and the second lifting frame 12 are fixed together by fastening bolts, anti-slip washers, and nuts, and these fasteners 3 ensure a stable connection between the two lifting frames. The first rotating shaft 11 and the second rotating shaft 14 are both hinge structures, which connect the lifting frame to the equipment. The hinges are fixed with bolts to ensure the reliability of the connection.
[0032] The end face of the stabilizing base 13 has mounting holes and anti-slip pads to enhance friction with the ground and improve stability. The first lifting frame 10 and the second lifting frame 12 are symmetrically distributed on the stabilizing base 13, ensuring the stability and reliability of the explosion-proof isolation frame 1. Through this carefully designed structure, the surge arrester not only possesses strong lightning protection capabilities but also excellent explosion-proof performance, providing a powerful guarantee for the safe operation of the power system.
[0033] Install the surge arrester body 5 onto the explosion-proof mounting base 2. Ensure the surge arrester body 5 is correctly connected to the explosion-proof mounting base 2. Securely connect the explosion-proof isolation frame 1 to the explosion-proof mounting base 2 using fasteners 3. Ensure that a dedicated explosion-proof plate is placed within the explosion-proof cavity 4 between the explosion-proof isolation frame 1 and the explosion-proof mounting base 2. Adjust the position of the fixing member 9 by adjusting the arc groove 8 of the top frame 6 and the bottom frame 7 to change the angle of the surge arrester body 5. Use the first lifting frame 10 and the second lifting frame 12 to adjust the height using fastening bolts, anti-slip washers, and nuts. Ensure that the angle and height of the surge arrester body 5 are suitable for the installation environment requirements.
[0034] Secure the adjusting top frame 6 to the explosion-proof isolation frame 1 with bolts. Ensure that anti-slip strips are provided at the connection between the adjusting top frame 6 and the adjusting base frame 7 to enhance stability. Ensure that the mounting holes on the end face of the stabilizing seat 13 are correctly positioned and install anti-slip pads. Ensure that the first lifting frame 10 and the second lifting frame 12 are symmetrically distributed on the stabilizing seat 13 to enhance stability.
[0035] Adjust the distance between the explosion-proof isolation frame 1 and the explosion-proof mounting base 2 by adjusting fastener 3 (fastening screw, fastening nut, and anti-slip washer). After adjustment, ensure that the space size of the explosion-proof cavity 4 meets the requirements. Loosen the fixing parts 9 (throttle, bolt, and anti-slip washer) and adjust the position of the bolts in the arc groove 8 of the adjusting top frame 6 and the adjusting base frame 7. After adjustment, re-tighten the bolts to ensure that the angle of the surge arrester body 5 meets the requirements. Loosen the fastening bolts, anti-slip washers, and nuts of the first lifting frame 10 and the second lifting frame 12. Adjust the height of the lifting frame to ensure that the height of the surge arrester body 5 meets the requirements. Re-tighten the fastener 3 to ensure that the lifting frame is stably connected. Ensure that all connecting parts (such as fixing parts 9, fastening bolts, etc.) are correctly fixed and not loose. Check that the anti-slip pads are correctly installed on the stabilizing base 13 to ensure sufficient friction with the ground.
[0036] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. An arc extinguishing explosion-proof lightning arrester comprising an explosion-proof mounting base (2), an arrester body (5) mounted on the explosion-proof mounting base (2), characterized in that: The explosion-proof mounting base (2) is connected to the explosion-proof isolation frame (1) by fasteners (3). An explosion-proof cavity (4) is provided between the explosion-proof isolation frame (1) and the explosion-proof mounting base (2). An explosion-proof plate is placed in the explosion-proof cavity (4), and the explosion-proof bottom of the surge arrester is achieved through the explosion-proof isolation frame (1), the explosion-proof plate, and the explosion-proof mounting base (2). The lower end of the explosion-proof mounting base (2) is connected to an adjusting top frame (6), and the adjusting top frame (6) is connected to an adjusting base frame (7) through a fixing member (9). The side walls of the adjusting top frame (6) and the adjusting base frame (7) are provided with arc-shaped grooves (8) that are compatible with the fixing member (9). The adjusting base frame (7) is connected to a first lifting frame (10) through a first rotating shaft (11). The lower end of the first lifting frame (10) is connected to a second lifting frame (12). The second lifting frame (12) is connected to a stable seat (13) through a second rotating shaft (14). The angle of the surge arrester body (5) is adjusted through the fixing member (9) and the arc-shaped groove (8), and the height of the surge arrester body (5) is adjusted through the lifting frame.
2. The arc-extinguishing explosion-proof surge arrester according to claim 1, characterized in that: The explosion-proof isolation frame (1) and the explosion-proof mounting base (2) are similar in shape. The explosion-proof isolation frame (1) and the explosion-proof mounting base (2) have round holes, and the upper and lower round holes are aligned. The fastener (3) includes a fastening screw, a fastening nut and an anti-slip washer. The fastening screw is inserted into the opening of the protruding part of the explosion-proof isolation frame (1) and the explosion-proof mounting base (2), and the fastening nut and the anti-slip washer are fitted to achieve fixation.
3. The arc-extinguishing explosion-proof surge arrester according to claim 2, characterized in that: The fastener (3) adjusts the distance between the explosion-proof isolation frame (1) and the explosion-proof mounting base (2), thereby adjusting the size of the explosion-proof cavity (4) used to store the explosion-proof plate.
4. The arc-extinguishing explosion-proof surge arrester according to claim 3, characterized in that: The top adjustment frame (6) is fixed to the explosion-proof isolation frame (1) by bolts. The top adjustment frame (6) and the bottom adjustment frame (7) are both U-shaped. The openings of the top adjustment frame (6) and the bottom adjustment frame (7) are opposite each other. Anti-slip strips are provided at the connection between the top adjustment frame (6) and the bottom adjustment frame (7). The fixing component (9) includes a throttle, a bolt and an anti-slip washer. The anti-slip washer is fitted on the bolt. The bolt passes through the arc groove (8) of the top adjustment frame (6) and the bottom adjustment frame (7) and is inserted into the screw hole of the throttle to achieve fixation.
5. The arc-extinguishing explosion-proof surge arrester according to claim 4, characterized in that: The first lifting frame (10) and the second lifting frame (12) are fixed by fastening bolts, anti-slip washers and nuts, and the two lifting frames are fixed by fastening bolts, anti-slip washers and nuts. The first rotating shaft (11) and the second rotating shaft (14) are both hinge structures. The lifting frame is connected to the equipment by the hinge structure. The hinge is fixed by bolts.
6. The arc-extinguishing explosion-proof surge arrester according to claim 5, characterized in that: The end face of the stabilizer (13) is provided with mounting holes, and the surface of the stabilizer (13) is provided with anti-slip pads. The first lifting frame (10) and the second lifting frame (12) are symmetrically distributed on the stabilizer (13) to maintain the stability of the explosion-proof isolation frame (1).