Integrated fusing type disconnecting switch base

Abstract

The utility model provides an integrated fusing type disconnecting switch pedestal, comprising a top cover and a bottom cover, the top cover is arranged at the upper end of the bottom cover, the bottom cover is internally provided with a cavity, one side of the top cover is provided with a buckle, the buckle is made of an elastic material, the buckle is fixed on the side wall of the top cover, and the top cover is fixed on the top cover. A fixing ring is arranged on one side, which is the same as the buckle, of the bottom cover; a connecting lever is arranged on the side, away from the buckle, of the top cover, two lug plates are arranged on the side, away from the fixing ring, of the bottom cover, shaft pins are arranged on the inner walls of the lug plates and penetrate through the connecting lever, and the top cover and the bottom cover are rotationally connected through the connecting lever and the shaft pins. The top cover and the bottom cover are arranged, the top cover and the bottom cover are connected in a clamped mode through the buckle and the fixing ring, rapid and reliable connection between the top cover and the bottom cover is achieved, the ejection device is arranged on the top cover, the operation efficiency is improved through the design of the ejection device, the top cover can be rapidly opened conveniently, and therefore a fuse or other parts can be conveniently replaced.

Description

Technical Field

[0001] This utility model relates to the field of power fittings technology, and in particular to an integrated fuse-type disconnect switch base. Background Technology

[0002] A fusible disconnector is a current protection device that breaks the circuit by melting a fusible element due to the heat generated when the current exceeds a specified value for a period of time. Fusible disconnectors are widely used in high and low voltage power distribution systems, control systems, and electrical equipment as short-circuit and overcurrent protectors.

[0003] Chinese patent document CN201920305719.4 discloses a fuse-type disconnecting switch, including a base, a mounting base, and a top cover. A left mounting component and a right mounting component are respectively arranged on both sides of the mounting base, and several fuses are disposed between the left and right mounting components. A left connecting component and a right connecting component are respectively arranged at both ends of each fuse on the mounting base. Several hanging components corresponding to the number of right connecting components are detachably arranged on the base. The right connecting components can be electrically connected to the hanging components via hook-type connection or via bolt-type connection through specification replacement. This utility model has the following advantages: By replacing the specifications of the right connecting components to achieve electrical connection between the right connecting components and the hanging components or via bolt-type connection, manufacturers can produce different specifications of right connecting components and hanging components during the production process. This allows for selective assembly to obtain fuse-type disconnecting switches with two different connection methods, effectively reducing production costs.

[0004] However, the aforementioned patent has certain drawbacks in its use; the installation and disassembly of the disconnecting switch are inconvenient and inefficient.

[0005] To address these issues, an integrated fuse-type disconnect switch base is proposed. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, this utility model provides an integrated fuse-type disconnect switch base.

[0007] This utility model is achieved using the following technical solution:

[0008] An integrated fuse-type disconnect switch base includes a top cover and a bottom cover. The top cover is disposed on the upper end of the bottom cover. The bottom cover has a cavity inside. A buckle is provided on one side of the top cover. The buckle is made of elastic material and is fixed to the side wall of the top cover. A retaining ring is provided on the same side of the bottom cover as the buckle. When the top cover and the bottom cover are fixedly connected, the buckle is engaged in the retaining ring.

[0009] The top cover has a crank arm on the side away from the buckle. There are two crank arms, which are symmetrically arranged and are integrated with the top cover. The bottom cover has an ear plate on the side away from the fixing ring. There are two ear plates, which are symmetrically arranged. The inner wall of the ear plate is provided with a pivot pin, which passes through the crank arm. The top cover and the bottom cover are rotatably connected by the crank arm and the pivot pin.

[0010] The lower surface of the top cover is provided with a catapult device. There are two catapult devices, which are symmetrically arranged on the side of the top cover near the buckle.

[0011] The ejection device includes a receiving cavity and a limiting cover. The limiting cover is fixed at the end of the receiving cavity and has a through hole. A spring and a pressure plate are provided inside the receiving cavity. One end of the spring is fixed inside the receiving cavity and the other end is fixedly connected to the pressure plate. A guide post is fixedly provided on the pressure plate and extends out of the receiving cavity through the through hole.

[0012] The cavity is provided with a plurality of reinforcing ribs, which are arranged perpendicularly to each other and fixed to the bottom of the cavity;

[0013] The cavity is also provided with a plurality of mounting blocks, which are fixed inside the cavity and have waist-shaped grooves.

[0014] The lower surface of the bottom cover is provided with a bracket, and the bracket is provided with multiple mounting posts. The mounting posts are integrated with the bottom cover, and the mounting posts are provided with metal sleeves with internal threads.

[0015] The top cover has two symmetrical guide blocks at its lower end, and the bottom cover has a matching slot with a sealing gasket inside the slot.

[0016] The present invention has the following advantages over the prior art:

[0017] 1. By setting a top cover and a bottom cover, the top cover and the bottom cover are connected by buckles and fixing rings, realizing a quick and reliable connection between the top cover and the bottom cover. Furthermore, an ejector device is set on the top cover. The design of the ejector device improves the operating efficiency and makes it easy to quickly open the top cover, thereby facilitating the replacement of fuses or other components. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model when opened;

[0020] Figure 3 This is an exploded three-dimensional structural diagram of this utility model;

[0021] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0022] In the diagram: 1. Top cover; 11. Hanging ring; 12. Crank arm; 13. Guide block; 14. Buckle; 2. Bottom cover; 21. Ear plate; 22. Shaft pin; 23. Fixing ring; 24. Guide hole; 25. Slot; 3. Sealing gasket; 4. Cavity; 5. Mounting post; 51. Metal sleeve; 6. Bracket; 7. Mounting block; 71. Waist-shaped groove; 8. Ejector device; 81. Receiving cavity; 82. Spring; 83. Pressure plate; 84. Guide post; 85. Limiting cover. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 4 As shown, an integrated fuse-type disconnect switch base includes a top cover 1 and a bottom cover 2. The top cover 1 is located on the upper end of the bottom cover 2. The bottom cover 2 has a cavity 4 inside. A buckle 14 is provided on one side of the top cover 1. The buckle 14 is made of elastic material and is fixed to the side wall of the top cover 1. A fixing ring 23 is provided on the same side of the bottom cover 2 as the buckle 14. When the top cover 1 and the bottom cover 2 are fixedly connected, the buckle 14 is engaged in the fixing ring 23. The top cover 1 serves as the upper cover of the base, protecting the internal structure and electrical connections. It is fixedly connected to the bottom cover 2 through the buckle 14 structure. It also has a crank arm 12 and a ejector device 8 to realize the switching operation and quick ejection function, achieving a quick connection between the top cover 1 and the bottom cover 2, and the connection is stable and reliable.

[0026] The top cover 1 has two crank arms 12 on the side away from the buckle 14, arranged symmetrically, and integrated with the top cover 1. The bottom cover 2 has two ear plates 21 on the side away from the fixing ring 23, arranged symmetrically. The inner wall of the ear plate 21 has a shaft pin 22, which passes through the crank arm 12. The top cover 1 and the bottom cover 2 are rotatably connected by the crank arm 12 and the shaft pin 22. The rotatable connection of the crank arm 12 and the shaft pin 22 facilitates the opening and closing operation of the fuse-type disconnect switch.

[0027] The lower surface of the top cover 1 is provided with an ejection device 8. There are two ejection devices 8, which are symmetrically arranged on the side of the top cover 1 near the buckle 14, and are used to quickly eject the top cover 1 when needed to improve operating efficiency.

[0028] The ejection device 8 includes a receiving cavity 81 and a limiting cover 85. The limiting cover 85 is fixed to the end of the receiving cavity 81 and has a through hole. The receiving cavity 81 contains a spring 82 and a pressure plate 83. One end of the spring 82 is fixed inside the receiving cavity 81, and the other end is fixedly connected to the pressure plate 83. A guide post 84 is fixedly provided on the pressure plate 83, and the guide post 84 extends out of the receiving cavity 81 through the through hole. When a component needs to be ejected, the spring 82 pushes the pressure plate 83 and the guide post 84 outward to achieve the ejection function.

[0029] The cavity 4 is provided with a plurality of reinforcing ribs, which are arranged perpendicularly to each other and fixed to the bottom of the cavity 4; the reinforcing ribs are used to enhance the strength and rigidity of the bottom cover 2 and improve the stability of the overall structure.

[0030] The cavity 4 is also provided with a plurality of mounting blocks 7, which are fixed inside the cavity 4. The mounting blocks 7 are provided with waist-shaped grooves 71, and the mounting blocks 7 facilitate the installation and fixing of other components.

[0031] The lower surface of the bottom cover 2 is provided with a bracket 6, and the bracket 6 is provided with a plurality of mounting posts 5. The mounting posts 5 are integrally connected to the bottom cover 2, and the mounting posts 5 are provided with a metal sleeve 51, which has an internal thread. The mounting posts 5 and the metal sleeve 51 facilitate the fixed installation of the base on the equipment or wall.

[0032] The top cover 1 has two symmetrical guide blocks 13 at its lower end, and the bottom cover 2 has a matching slot 25. The slot 25 is provided with a sealing gasket 3. When the top cover 1 and the bottom cover 2 are closed, the guide blocks 13 are inserted into the slot 25, and the sealing gasket 3 plays a sealing role to prevent dust and moisture from entering the base and improve the protection level of the equipment.

[0033] The working principle of this utility model is as follows: When in use, open the top cover 1, install the fuse or other electrical components on the mounting block 7 inside the bottom cover 2, and fix them with fasteners;

[0034] After installation, align the top cover 1 with the bottom cover 2 and connect them together using the snap-fit ​​14 structure. During the connection process, the snap-fit ​​14 will automatically spring into the retaining ring 23 of the bottom cover 2, forming a stable connection. Ensure that the guide block 13 is correctly inserted into the slot 25 of the bottom cover 2, and check whether the sealing gasket 3 is in a compressed state to ensure the sealing of the base. Finally, fix the bottom cover 2 of the base in the required position using the bracket 6 and the mounting post 5 to ensure a firm installation.

[0035] When the fuse-type disconnect switch needs to be opened, press the buckle 14, the buckle 14 disengages from the retaining ring 23, the previously compressed spring 82 is released, the spring 82 releases energy, pushing the top cover 1 outward, while the crank arm 12 rotates around the pivot pin 22, thereby driving the top cover 1 to perform the corresponding action.

[0036] After inspecting or replacing the fuse, reconnect the top cover 1 and the bottom cover 2, and ensure that the buckle 14 structure is securely locked.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An integrated fuse-type disconnect switch base, comprising a top cover and a bottom cover, wherein the top cover is disposed on the upper end of the bottom cover, and the bottom cover has a cavity therein, characterized in that: The top cover has a buckle on one side, which is made of elastic material. The buckle is fixed to the side wall of the top cover. The bottom cover has a retaining ring on the same side as the buckle. When the top cover and the bottom cover are fixedly connected, the buckle is engaged in the retaining ring. The top cover has a crank arm on the side away from the buckle. There are two crank arms, which are symmetrically arranged and are integrated with the top cover. The bottom cover has an ear plate on the side away from the fixing ring. There are two ear plates, which are symmetrically arranged. The inner wall of the ear plate is provided with a pivot pin, which passes through the crank arm. The top cover and the bottom cover are rotatably connected by the crank arm and the pivot pin. The lower surface of the top cover is provided with a catapult device. There are two catapult devices, which are symmetrically arranged on the side of the top cover near the buckle.

2. The integrated fuse-type disconnector base according to claim 1, characterized in that: The ejection device includes a receiving cavity and a limiting cover. The limiting cover is fixed at the end of the receiving cavity and has a through hole. A spring and a pressure plate are provided inside the receiving cavity. One end of the spring is fixed inside the receiving cavity and the other end is fixedly connected to the pressure plate. A guide post is fixedly provided on the pressure plate and extends out of the receiving cavity through the through hole.

3. The integrated fuse-type disconnect switch base according to claim 2, characterized in that: The cavity is provided with a plurality of reinforcing ribs, which are arranged perpendicularly to each other and fixed to the bottom of the cavity; The cavity is also provided with a plurality of mounting blocks, which are fixed inside the cavity and have waist-shaped grooves.

4. The integrated fuse-type disconnect switch base according to claim 3, characterized in that: The lower surface of the bottom cover is provided with a bracket, and the bracket is provided with multiple mounting posts. The mounting posts are integrated with the bottom cover, and the mounting posts are provided with metal sleeves with internal threads.

5. The integrated fuse-type disconnector base according to claim 4, characterized in that: The top cover has two symmetrical guide blocks at its lower end, and the bottom cover has a matching slot with a sealing gasket inside the slot.

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