A circuit breaker insulating cylinder

Abstract

This utility model relates to the field of circuit breaker technology and discloses a circuit breaker insulating cylinder, including a main body with a heat dissipation groove inside. An installation assembly is located at the bottom of the main body, and a dustproof mesh is provided on the outer wall of the main body. A quick-release assembly is provided on the outer wall of the dustproof mesh. The installation assembly includes a mounting bracket, with its top located at the bottom of the main body. A guide post is fixedly connected to the bottom of the main body, and the outer wall of the guide post is slidably connected to the inner wall of the mounting bracket. A sliding block is fixedly connected to the bottom of the main body, with a slot inside the sliding block. The outer wall of the sliding block is slidably connected to the inner wall of the mounting bracket, and a locking block is slidably connected to the inner wall of the mounting bracket. In this utility model, the installation is first performed by installing the mounting bracket, and then by inserting the guide post and sliding block into the inner wall of the mounting bracket. This avoids the need for multiple bolts, complex positioning structures, and repeated adjustments for alignment required by traditional installation methods, which are time-consuming and labor-intensive, thus improving installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a circuit breaker insulating cylinder. Background Technology

[0002] The insulating cylinder of a circuit breaker is a core component of a high-voltage circuit breaker. It is mainly used to provide insulation and structural support for key components such as the arc-extinguishing chamber and conductive rod inside the circuit breaker, ensuring that the equipment can operate safely and stably in a high-voltage environment. In the power system, the circuit breaker is the control hub for circuit switching, and its operational reliability is directly related to the safety and stability of power transmission. As an important insulating component inside the circuit breaker, the insulating cylinder needs to simultaneously meet the requirements of excellent electrical insulation performance, sufficient mechanical strength, and good environmental resistance to adapt to the usage requirements of different voltage levels and different operating environments.

[0003] In existing technologies, circuit breaker insulation cylinders are typically installed using bolted connections. This involves fixing the insulation cylinder body to the circuit breaker base or other supporting structure using multiple bolts. During installation, the insulation cylinder body is first hoisted or placed in the designated position. Then, the bolt holes are manually aligned one by one, and the bolts are tightened using wrenches or other tools to ensure a secure installation. From a technical perspective, this installation method relies primarily on the preload of the bolts to fix the insulation cylinder to the supporting structure. The friction generated by the threaded engagement of the bolts and nuts prevents displacement or shaking of the insulation cylinder during operation.

[0004] However, in existing technologies, the installation process of the insulating cylinder is quite cumbersome, requiring multiple bolts and complex positioning structures. During installation, the position of the insulating cylinder needs to be repeatedly adjusted to align the bolt holes and positioning pins, which is not only time-consuming and labor-intensive, but also, in small installation areas, the limited operating space makes it difficult to use tools such as wrenches, further increasing the installation difficulty and resulting in low installation efficiency. In mass production or on-site assembly, this traditional installation method will significantly prolong the overall construction progress and increase labor costs. At the same time, repeated adjustments and operations can also lead to improper installation of the insulating cylinder due to human error, affecting the operational stability of the circuit breaker. Therefore, a circuit breaker insulating cylinder is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a circuit breaker insulating cylinder, which aims to improve the problems of installation in the prior art that require multiple bolts, complex positioning structures, and are inconvenient when space is limited.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A circuit breaker insulating cylinder includes a main body, a heat dissipation groove inside the main body, an installation component at the bottom of the main body, a dustproof net on the outer wall of the main body, and a quick-release component on the outer wall of the dustproof net.

[0008] The mounting assembly includes a mounting frame, the top of which is disposed at the bottom of the main body. A guide post is fixedly connected to the bottom of the main body. The outer wall of the guide post is slidably connected to the inner wall of the mounting frame. A sliding block is fixedly connected to the bottom of the main body. A slot is formed inside the sliding block. The outer wall of the sliding block is slidably connected to the inner wall of the mounting frame. A locking block is slidably connected to the inner wall of the mounting frame. The outer wall of the locking block is slidably connected to the inner wall of the slot. A limit block is fixedly connected to one end of the locking block. A spring is disposed inside the mounting frame. One end of the spring is fixedly connected to the inner wall of the mounting frame, and the other end of the spring is fixedly connected to the outer wall of the limit block.

[0009] As a further description of the above technical solution:

[0010] The quick-release assembly includes a connecting block, the outer wall of which is fixedly connected to the outer wall of the dustproof net, and a limiting groove is formed inside the connecting block.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the connecting block is slidably connected to a fixing frame, and the outer wall of the fixing frame is fixedly connected to the outer wall of the main body.

[0013] As a further description of the above technical solution:

[0014] A retaining ball is slidably connected to the inner wall of the main body, and the outer wall of the retaining ball is slidably connected to the inner wall of the limiting groove.

[0015] As a further description of the above technical solution:

[0016] A fixing block is fixedly connected to the outer wall of the ball, and a sliding rod is fixedly connected to the bottom of the fixing block.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the sliding rod is slidably connected to the inner wall of the fixed frame, and a pull rod is fixedly connected to the bottom of the sliding rod.

[0019] As a further description of the above technical solution:

[0020] A second spring is fitted on the outer wall of the sliding rod. One end of the second spring is fixedly connected to the inner wall of the fixed frame, and the other end of the second spring is fixedly connected to the outer wall of the fixed block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the main body is quickly installed by first installing the mounting bracket and then inserting the guide column and sliding block into the inner wall of the mounting bracket. This avoids the need for traditional installation, which requires multiple bolts, complex positioning structures, repeated adjustments and alignment, and is time-consuming and labor-intensive. In addition, traditional installation is inconvenient when installing in a small space. This improves installation efficiency, especially in mass production or on-site assembly, which can significantly improve the overall construction progress and reduce labor costs.

[0023] 2. In this utility model, the dustproof net is first pulled to move the connecting block. Then, the connecting block squeezes the locking block to move it out of the limiting groove, achieving the effect of quick disassembly of the dustproof net. This avoids the problem that traditional dustproof nets are often fixed with screws, requiring a matching screwdriver to loosen each screw during disassembly. This is especially problematic when the ventilation opening is narrow, as the limited operating space can easily lead to excessively long disassembly times. Furthermore, with traditional screw-fixed dustproof nets, if the screws rust or accumulate dust after long-term use, forced disassembly can cause the screws to strip, the dustproof net frame to deform, or even damage the ventilation opening edge of the insulating cylinder. This significantly reduces the total time spent cleaning or replacing the dustproof net and extends the service life of the equipment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of an insulating cylinder for a circuit breaker proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a mounting bracket for a circuit breaker insulating cylinder proposed in this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of a dustproof mesh for a circuit breaker insulating cylinder proposed in this utility model;

[0028] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0029] Legend:

[0030] 1. Main body; 2. Heat dissipation groove; 3. Dustproof net; 4. Guide column; 5. Mounting bracket; 6. Sliding block; 7. Slot; 8. Locking block; 9. Limiting block; 10. Spring 1; 11. Fixing bracket; 12. Connecting block; 13. Limiting groove; 14. Locking ball; 15. Fixing block; 16. Sliding rod; 17. Spring 2; 18. Pull rod. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3 The present invention provides an embodiment of a circuit breaker insulation cylinder, comprising a main body 1, wherein a heat dissipation groove 2 is provided inside the main body 1 to accelerate heat dissipation and avoid the accumulation of heat generated by the operation of internal components, which would cause the main body 1 to overheat and affect the insulation performance and service life; an installation component is provided at the bottom of the main body 1; a dustproof net 3 is provided on the outer wall of the main body 1; and a quick-release component is provided on the outer wall of the dustproof net 3.

[0033] The mounting assembly includes a mounting frame 5, with its top positioned at the bottom of the main body 1. A guide post 4 is fixedly connected to the bottom of the main body 1. The guide post 4 guides the main body 1 during installation, ensuring it is accurately placed in the predetermined position on the mounting frame 5, preventing misalignment and improving installation efficiency. The outer wall of the guide post 4 is slidably connected to the inner wall of the mounting frame 5. A sliding block 6 is fixedly connected to the bottom of the main body 1. The sliding block 6 slides along the inner wall of the mounting frame 5, further assisting in the positioning and movement of the main body 1 on the mounting frame 5, allowing for smoother installation. The sliding block 6 has a slot 7 inside, and its outer wall is slidably connected to the inner wall of the mounting frame 5. A locking block 8 is slidably connected to the inner wall of the mounting frame 5, and its outer wall is slidably connected to the inner wall of the slot 7. Block 8 engages with the inner wall of the slot 7. After the main body 1 is installed in place, block 8 engages with the slot 7, fixing the sliding block 6. This prevents the main body 1 from falling off the mounting frame 5 due to vibration or other reasons during operation, ensuring the stability of the main body 1 installation. One end of block 8 is fixedly connected to a limit block 9, which limits the sliding range of block 8, preventing block 8 from sliding out of the inner wall of the mounting frame 5 and ensuring that block 8 can stably engage with the slot 7. A spring 10 is installed inside the mounting frame 5. One end of spring 10 is fixedly connected to the inner wall of the mounting frame 5, and the other end of spring 10 is fixedly connected to the outer wall of the limit block 9. When the slot 7 on the sliding block 6 aligns with block 8, spring 10 resets, pushing block 8 into the slot 7, achieving automatic engagement and simplifying the installation operation.

[0034] Reference Figure 4 and Figure 5The quick-release assembly includes a connecting block 12, which connects the dustproof net 3 and the fixing bracket 11, fixing the dustproof net 3 to the outer wall of the main body 1. The outer wall of the connecting block 12 is fixedly connected to the outer wall of the dustproof net 3. The dustproof net 3 is used to block external dust, debris, etc. from entering the interior of the main body 1, preventing these substances from adhering to internal components and affecting their performance, while not affecting the ventilation and heat dissipation of the main body 1. A limiting groove 13 is formed inside the connecting block 12. The limiting groove 13 cooperates with the locking ball 14 to perform a locking movement, thereby fixing the connecting block 12 and thus securing the dustproof net 3. The connecting block 12 is fixed to the fixing frame 11. The fixing frame 11 is slidably connected to the outer wall of the connecting block 12. The fixing frame 11 provides an installation position for the connecting block 12 and related components, and stably fixes the dustproof net 3 to the outer wall of the main body 1. The outer wall of the fixing frame 11 is fixedly connected to the outer wall of the main body 1. A retaining ball 14 is slidably connected to the inner wall of the main body 1. The retaining ball 14 engages with the inner wall of the limiting groove 13. When the dustproof net 3 is installed in place, the retaining ball 14 engages with the limiting groove 13, fixing the connecting block 12 and preventing the dustproof net 3 from loosening or falling off. The outer wall of the retaining ball 14 is slidably connected to the limiting groove 13. A fixing block 15 is fixedly connected to the inner wall of the groove 13 and the outer wall of the ball 14. The fixing block 15 connects the ball 14 and the sliding rod 16, allowing the movement of the sliding rod 16 to drive the ball 14, while preventing the ball 14 from falling out of the fixing frame 11. The bottom of the fixing block 15 is fixedly connected to the sliding rod 16, and the outer wall of the sliding rod 16 is slidably connected to the inner wall of the fixing frame 11. A pull rod 18 is fixedly connected to the bottom of the sliding rod 16. By pulling the pull rod 18, the sliding rod 16 slides up and down, thereby causing the ball 14 to disengage from or engage with the limiting groove 13. The dustproof net 3 can be disassembled or installed. At the same time, the pull rod 18 allows the operator to control the movement of the sliding rod 16 by pulling the pull rod 18, thereby realizing the quick disassembly and installation of the dustproof net 3. The outer wall of the sliding rod 15 is fitted with a second spring 17. One end of the second spring 17 is fixedly connected to the inner wall of the fixing frame 11, and the other end of the second spring 17 is fixedly connected to the outer wall of the fixing block 16. When the pull rod 18 is released, the second spring 17 returns to its original position, pushing the fixing block 15 to move upward, so that the locking ball 14 is locked into the limiting groove 13, realizing the automatic fixing of the dustproof net 3 and simplifying the installation operation.

[0035] Working principle: During the installation of the main body 1, the operator first installs the mounting bracket 5 inside the circuit breaker. Then, the guide post 4 and sliding block 6 are inserted into the mounting bracket 5. The sliding block 6 then slides against the inner wall of the mounting bracket 5, pressing against the locking block 8. The outer wall of the locking block 8 is curved, allowing it to slide against the inner wall of the mounting bracket 5 when pressed. The sliding of the locking block 8 then moves the limiting block 9, which in turn compresses the spring 10. Upon installation, the spring 10 returns to its original position, causing the limiting block 9 to reset. Finally, the reset of the limiting block 9 moves the locking block 8 into the slot 7. The installation of the main body 1 is completed internally. When disassembling the main body 1, simply pull the main body 1 upwards. Pulling the main body 1 will cause the guide column 4 and the sliding block 6 to move upwards. Then, the movement of the sliding block 6 will press the locking block 8. The sliding block 6 has a locking groove 7 that matches the curvature of the outer wall of the locking block 8. Then, by pressing the locking block 8, it will slide on the inner wall of the mounting bracket 5. When the locking block 8 moves out of the locking groove 7, the disassembly of the main body 1 is completed. This avoids the need for multiple bolts and complex positioning structures in traditional installation, which requires repeated adjustments and alignment, is time-consuming and labor-intensive, and is inconvenient when installing in a small space.

[0036] When disassembling the dustproof net 3, the worker first pulls the lever 18, which causes the sliding rod 16 to slide against the inner wall of the fixing frame 11. The sliding rod 16 then moves the fixing block 15 inside the fixing frame 11, compressing the spring 17. The movement of the fixing block 15 then moves the retaining ball 14, releasing the limiting position on the dustproof net 3 as the retaining ball 14 moves out of the limiting groove 13, thus completing the disassembly of the dustproof net 3. When installing the dustproof net 3, the connecting block 12 is first inserted into the inner wall of the fixing frame 11. After installation, release the pull rod 18. Then, the spring 17 will cause the fixing block 15 to reset. When the fixing block 15 moves into the limiting groove 13, it will limit the dustproof net 3, thus completing the installation of the dustproof net 3. This avoids the problem that traditional dustproof nets 3 are often fixed with screws. When disassembling, it is necessary to find a matching screwdriver and loosen the screws one by one. Especially when the ventilation opening is narrow, the operating space is limited, which can easily lead to excessively long disassembly time. In addition, if the screws of the traditionally screw-fixed dustproof net 3 rust or accumulate dust after long-term use, forced disassembly will cause the screws to strip, the frame of the dustproof net 3 to deform, or even damage the edge of the ventilation opening of the insulating cylinder.

Claims

1. A circuit breaker insulating cylinder comprising a main body (1), characterized in that: The main body (1) has a heat dissipation groove (2) inside, an installation component is provided at the bottom of the main body (1), a dustproof net (3) is provided on the outer wall of the main body (1), and a quick-release component is provided on the outer wall of the dustproof net (3). The mounting assembly includes a mounting bracket (5), the top of which is located at the bottom of the main body (1). A guide post (4) is fixedly connected to the bottom of the main body (1). The outer wall of the guide post (4) is slidably connected to the inner wall of the mounting bracket (5). A sliding block (6) is fixedly connected to the bottom of the main body (1). A slot (7) is provided inside the sliding block (6). The outer wall of the sliding block (6) is slidably connected to the inner wall of the mounting bracket (5). A locking block (8) is slidably connected to the inner wall of the mounting bracket (5). The outer wall of the locking block (8) is slidably connected to the inner wall of the slot (7). A limit block (9) is fixedly connected to one end of the locking block (8). A spring (10) is provided inside the mounting bracket (5). One end of the spring (10) is fixedly connected to the inner wall of the mounting bracket (5), and the other end of the spring (10) is fixedly connected to the outer wall of the limit block (9).

2. The circuit breaker insulating bushing of claim 1, wherein: The quick-release assembly includes a connecting block (12), the outer wall of which is fixedly connected to the outer wall of the dustproof net (3), and a limiting groove (13) is formed inside the connecting block (12).

3. An insulating cylinder for a circuit breaker according to claim 2, characterized in that: The outer wall of the connecting block (12) is slidably connected to a fixing frame (11), and the outer wall of the fixing frame (11) is fixedly connected to the outer wall of the main body (1).

4. The circuit breaker bushing of claim 3, wherein: The inner wall of the main body (1) is slidably connected to a ball (14), and the outer wall of the ball (14) is slidably connected to the inner wall of the limiting groove (13).

5. An insulating cylinder for a circuit breaker according to claim 4, characterized in that: A fixing block (15) is fixedly connected to the outer wall of the ball (14), and a sliding rod (16) is fixedly connected to the bottom of the fixing block (15).

6. An insulating cylinder for a circuit breaker according to claim 5, characterized in that: The outer wall of the sliding rod (16) is slidably connected to the inner wall of the fixed frame (11), and a pull rod (18) is fixedly connected to the bottom of the sliding rod (16).

7. An insulating cylinder for a circuit breaker according to claim 6, characterized in that: The outer wall of the sliding rod (16) is fitted with a second spring (17). One end of the second spring (17) is fixedly connected to the inner wall of the fixed frame (11), and the other end of the second spring (17) is fixedly connected to the outer wall of the fixed block (15).

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