A primary and secondary fused pole-mounted circuit breaker operating structure

Abstract

The utility model discloses a primary and secondary fusion pole circuit breaker shell operating structure belongs to pole circuit breaker technical field, including the cabinet body for providing the closed containing space for internal components, the top of cabinet body is equipped with the reinforcing edge frame for reinforcing the cabinet body structure strength and rigidity, the inside wall of one side of reinforcing edge frame is fixedly installed with the rotating column for supporting, the outer periphery of rotating column rotatably installs the connecting support for connecting cabinet body and upper cover, the top of cabinet body rotatably installs the upper cover for forming the closed space with cabinet body cooperation, the inside wall of one side of upper cover is fixedly installed with the L shape limit strip for guaranteeing that upper cover can stably be in the set position after opening, and this primary and secondary fusion pole circuit breaker shell operating structure stably fixes the upper cover through mechanical limit, avoids its when installing or maintaining and shakes, and convenient operation has improved the operation safety again.

Description

Technical Field

[0001] This utility model belongs to the technical field of pole-mounted circuit breakers, and in particular, it relates to an operating structure for the housing of a primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] With the development of smart grids, the application of primary and secondary integrated pole-mounted circuit breakers in distribution networks is becoming increasingly widespread. They enable real-time monitoring, protection, and control of the distribution network, improving power supply reliability and automation levels. However, the operation of the primary and secondary integrated pole-mounted circuit breaker's casing is currently inconvenient during use and maintenance. After opening, the top cover cannot be secured, and the lack of a fixed support function allows it to swing freely, affecting equipment installation and operation.

[0003] A search revealed Chinese patent documents (authorization announcement number CN208796897U). This utility model relates to a primary and secondary fusion vacuum circuit breaker for a common enclosure type. The circuit breaker housing has an inlet and outlet bushing on one side, and a moving conductive rod is formed on the side of the vacuum interrupter chamber near the inlet and outlet bushing. This utility model has the advantages of large insulation distance, small housing size, and stable structure. The device can meet basic usage requirements. However, the operation of the outer casing is inconvenient when using and opening for maintenance. After opening, the top cover cannot be fixed, and the top cover does not have a fixed support function after opening, so it will swing freely, affecting the installation and operation of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a primary and secondary integrated pole-mounted circuit breaker housing operating structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a primary and secondary integrated pole-mounted circuit breaker housing operating structure, including a cabinet for providing enclosed storage space for internal components, and a reinforcing frame for enhancing the structural strength and rigidity of the cabinet is installed on the top of the cabinet; A rotating column for support is fixedly installed on one inner wall of the reinforced frame. A connecting bracket for connecting the cabinet and the top cover is rotatably installed on the outer periphery of the rotating column. A top cover for cooperating with the cabinet to form a closed space is rotatably installed on the top of the cabinet. An L-shaped limiting strip for ensuring that the top cover can be stably positioned in a set position after being opened is fixedly installed on one inner wall of the top cover.

[0006] Preferably, the surface of the L-shaped limiting strip is provided with a limiting groove for providing a guide path for the movement of the connecting bracket, and the two ends of the limiting groove are provided with limiting holes for limiting and fixing the connecting bracket.

[0007] Preferably, the end of the connecting bracket away from the rotating column is fixedly connected to a dome-shaped limiting post for engaging with the limiting circular hole, and the end of the dome-shaped limiting post is slidably disposed inside the limiting groove.

[0008] Preferably, a reinforcing frame for increasing the strength of the top cover is installed on the side of the top cover, and a lock hole for installing the lock body is provided on the side of the top cover.

[0009] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This integrated primary and secondary pole-mounted circuit breaker housing operating structure benefits from the design of limiting holes and dome-shaped limiting posts. The limiting grooves on the surface of the L-shaped limiting strip provide precise guidance for the dome-shaped limiting posts at the ends of the connecting bracket, and the limiting holes at both ends can engage and fix with the dome-shaped limiting posts. This structure solves the problem of traditional top covers having no fixed support and swinging freely after opening. When the top cover is opened to a specified angle, the dome-shaped limiting posts engage with the corresponding limiting holes, mechanically limiting and stabilizing the top cover, preventing it from shaking during installation or maintenance. This not only facilitates operation but also improves operational safety.

[0010] The integrated primary and secondary pole-mounted circuit breaker housing operating structure benefits from the reinforced side frame and the strengthening frame. The reinforced side frame enhances the overall rigidity of the cabinet, preventing deformation due to long-term outdoor use or external impacts; the strengthening frame improves the structural strength of the top cover, preventing damage during frequent opening and closing or under stress. The combination of these two elements ensures the structural stability of the housing, extends the equipment's service life, and provides a stable mounting foundation for components such as the rotating column, ensuring long-term reliable operation of the operating structure. Attached Figure Description

[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This utility model Figure 1 Enlarged view of point A in the middle.

[0013] Explanation of reference numerals in the attached figures: In the diagram: 1. Cabinet body; 101. Reinforcing side frame; 102. Top cover; 103. Reinforcing frame; 104. Lock hole; 2. L-shaped limit strip; 201. Limiting groove; 202. Limiting round hole; 203. Rotating column; 204. Connecting bracket; 205. Dome limiting column. Detailed Implementation

[0014] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0015] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0016] like Figures 1 to 3 The primary and secondary integrated pole-mounted circuit breaker housing operating structure shown includes a cabinet 1 for providing enclosed housing space for internal components, and a reinforcing frame 101 for enhancing the structural strength and rigidity of the cabinet 1 is installed on the top of the cabinet 1. A rotating column 203 for support is fixedly installed on one inner wall of the reinforced frame 101. A connecting bracket 204 for connecting the cabinet 1 and the top cover 102 is rotatably installed on the outer periphery of the rotating column 203. The top of the cabinet 1 is rotatably installed with the top cover 102 to cooperate with the cabinet 1 to form a closed space. An L-shaped limiting strip 2 for ensuring that the top cover 102 can be stably in a set position after being opened is fixedly installed on one inner wall of the top cover 102. After unlocking the lock body at the lock hole 104, the top cover 102 is pushed upward or outward, and the top cover 102 drives the L-shaped limiting strip 2 to move synchronously. At this time, the connecting bracket 204 rotates around the rotating column 203, and the dome limiting post 205 at its end slides out from the initial limiting circular hole 202 and enters the limiting slide groove 201, and slides along the guide path of the limiting slide groove 201 to ensure the stability of the opening and closing process of the upper cover 102. When the upper cover 102 is opened to the required angle, the dome limiting post 205 at the end of the connecting bracket 204 slides to the limiting circular hole 202 at the other end of the limiting slide groove 201. The dome limiting post 205 is embedded in the limiting circular hole 202. The connecting bracket 204 is limited and fixed by the cooperation of the limiting circular hole 202 and the dome limiting post 205, so that the upper cover 102 is stably kept in the open state, avoiding random swinging, and facilitating the installation, maintenance or operation of the internal components of the cabinet 1.

[0017] The surface of the L-shaped limiting strip 2 is provided with a limiting groove 201 for providing a guide path for the movement of the connecting bracket 204. Both ends of the limiting groove 201 are provided with limiting holes 202 for limiting and fixing the connecting bracket 204. The end of the connecting bracket 204 away from the rotating column 203 is fixedly connected with a dome limiting post 205 for cooperating with the limiting hole 202. The end of the dome limiting post 205 is slidably disposed inside the limiting groove 201.

[0018] A reinforcing frame 103 is installed on the side of the top cover 102 to increase its strength. A lock hole 104 for installing the lock body is provided on the side of the top cover 102. The top cover 102 and the cabinet 1 cooperate to form a closed space. At this time, one end of the connecting bracket 204 is in a retracted state around the rotating column 203 (fixed to the inner wall of the reinforcing frame 101), and the dome-shaped limiting column 205 at the other end is embedded in one of the limiting holes 202 of the L-shaped limiting strip 2 (fixed to the inner wall of the top cover 102). The lock body is installed through the lock hole 104. The top cover 102 can be further locked to ensure that the internal components of the cabinet 1 are in a closed and protected state. The reinforcing frame 103 enhances the overall strength of the top cover 102. When the top cover 102 is turned in the opposite direction, the dome limiting post 205 slides out from the limiting round hole 202 at the end and slides in the opposite direction along the limiting slide groove 201. The connecting bracket 204 rotates in the opposite direction around the rotating post 203 until the dome limiting post 205 is embedded in the initial limiting round hole 202. The top cover 102 and the cabinet 1 are closed. Finally, it can be locked by the lock body installed in the lock hole 104.

[0019] To ensure the normal operation of the operating structure of the primary and secondary integrated pole-mounted circuit breaker housing, several additional measures are required, such as: Moisture-proof and dust-proof design to address environmental impacts: An aging-resistant rubber sealing ring is added to the contact surface between the cabinet 1 and the top cover 102 to enhance sealing and prevent rainwater and dust from entering and corroding moving parts such as the rotating column 203 and the dome-shaped limit column 205; the limit groove 201 and limit hole 202 of the L-shaped limit strip 2 can adopt a shallow groove design to reduce water and dust accumulation, while small drainage holes are opened at the bottom of the groove to prevent rainwater retention; anti-corrosion treatment: reinforcement. Metal components such as the side frame 101 and connecting bracket 204 are made of hot-dip galvanized or stainless steel to improve their resistance to atmospheric corrosion. The L-shaped limit strip 2 is made of high-strength engineering plastic (such as PA66 + glass fiber), which has both insulation and weather resistance to adapt to outdoor temperature changes. Vibration and impact resistance: The connection between the rotating column 203 and the reinforced side frame 101 is made of welding or high-strength bolts to prevent loosening caused by long-term vibration. The end of the dome limit column 205 is made of wear-resistant rubber to reduce hard friction with the limit slide 201 and the limit hole 202, thereby reducing vibration noise and component wear. Strengthen maintenance and upkeep, for example, by simplifying the maintenance structure: the lock hole 104 uses a universal lock for easy and quick unlocking by maintenance personnel; the reinforcing frame 103 of the upper cover 102 has a reserved inspection window, allowing observation of the internal operating components without complete disassembly; an oil injection hole is provided at the connection between the connecting bracket 204 and the rotating column 203, and grease (such as lithium-based grease) is injected regularly to ensure smooth rotation; establish a maintenance cycle: check the limit slide 201 for foreign objects and the dome limit column 205 for wear every 6 months, and clean the impurities in the slide with a high-pressure air gun in time; perform rust prevention treatment on moving parts such as the lock hole 104 and the rotating column 203 every year to ensure reliable opening and closing function; labeling and warning: mark "Do not strike" and "Regular lubrication" warning signs near the L-shaped limit strip 2 to remind maintenance personnel to avoid violent operation; a schematic diagram of the operating structure is pasted on the inside of the upper cover 102 to guide the standardized maintenance process. Further optimization of component material selection is needed. For example, upgrading core component materials: connecting bracket 204 uses high-strength alloy steel (such as 45# steel with heat treatment), balancing rigidity and toughness to avoid deformation under long-term stress; dome limiting post 205 uses wear-resistant ceramic or polytetrafluoroethylene material to improve the fitting accuracy and service life with the limiting round hole 202; environmentally adaptable material combination: cabinet 1 and top cover 102 use SMC composite material (glass fiber reinforced unsaturated polyester resin), which has the characteristics of UV resistance and high and low temperature resistance (-40℃ to 70℃), adapting to complex outdoor climates; reinforced side frame 101 uses aluminum alloy profile to reduce overall weight while ensuring structural strength; material compatibility design: insulating gaskets are added to the connection parts of components of different materials (such as metal rotating column 203 and plastic L-shaped limiting strip 2) to avoid electrochemical corrosion; all non-metallic components must pass aging resistance tests to ensure that they do not become brittle and crack under long-term sunlight and rain.

[0020] Working principle The primary and secondary integrated pole-mounted circuit breaker housing operating structure, when in use, forms a closed space between the top cover 102 and the cabinet 1 when the equipment is in the closed state. The lock body in the lock hole 104 locks both together, and the reinforcing frame 103 enhances the structural strength of the top cover 102. At this time, one end of the connecting bracket 204 retracts around the rotating column 203 on the reinforcing frame 101, and the dome-shaped limiting column 205 at the other end is embedded in one of the limiting circular holes 202 of the L-shaped limiting strip 2 on the inner wall of the top cover 102, ensuring that the top cover is stably closed. When opening, after unlocking the lock body of the lock hole 104, the top cover 102 is moved. The L-shaped limiting strip 2 moves synchronously with the top cover, the connecting bracket 204 rotates around the rotating column 203, and the dome-shaped limiting column 205 slides out from the initial limiting circular hole 202 and enters the limiting slide groove 201. The dome limit post 205 slides along the guide to ensure smooth opening and closing. When opened to the required angle, the dome limit post 205 slides into the limit hole 202 at the other end of the limit groove 201. The two fit together to fix the connecting bracket 204, so that the top cover 102 is stably kept in the open state to avoid shaking and facilitate the installation and maintenance of internal components. When closed, the top cover is turned in the opposite direction, and the dome limit post 205 slides back along the limit groove 201 and is embedded in the initial limit hole 202. After the top cover and the cabinet are closed, the lock hole 104 can be locked again.

[0021] It should be noted that in this article, relational terms such as one and two are used only 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.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker housing operating structure, comprising a cabinet (1) for providing enclosed housing space for internal components, characterized in that: The top of the cabinet (1) is equipped with a reinforcing side frame (101) to enhance the structural strength and rigidity of the cabinet. A rotating column (203) for support is fixedly installed on one inner wall of the reinforced side frame (101). A connecting bracket (204) for connecting the cabinet (1) and the top cover (102) is rotatably installed on the outer periphery of the rotating column (203). A top cover (102) for cooperating with the cabinet (1) to form a closed space is rotatably installed on the top of the cabinet (1). An L-shaped limiting strip (2) for ensuring that the top cover (102) can be stably in a set position after being opened is fixedly installed on one inner wall of the top cover (102).

2. The primary and secondary integrated pole-mounted circuit breaker housing operating structure according to claim 1, characterized in that: The surface of the L-shaped limiting strip (2) is provided with a limiting groove (201) for providing a guide path for the movement of the connecting bracket (204), and the two ends of the limiting groove (201) are provided with limiting holes (202) for limiting and fixing the connecting bracket (204).

3. The primary and secondary integrated pole-mounted circuit breaker housing operating structure according to claim 2, characterized in that: The end of the connecting bracket (204) away from the rotating column (203) is fixedly connected to a dome limiting post (205) for cooperating with the limiting circular hole (202), and the end of the dome limiting post (205) is slidably disposed inside the limiting groove (201).

4. The primary and secondary integrated pole-mounted circuit breaker housing operating structure according to claim 1, characterized in that: The upper cover (102) is provided with a reinforcing frame (103) for increasing the strength of the upper cover (102), and the upper cover (102) is provided with a lock hole (104) for installing the lock body.

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