High-voltage vacuum circuit breaker

Abstract

The utility model discloses a high-voltage vacuum circuit breaker, and relates to the technical field of vacuum circuit breakers. The circuit breaker comprises a circuit breaker, and also comprises a supporting part which is arranged below the circuit breaker and is used for supporting the circuit breaker; the plurality of locking parts are arranged, and the plurality of locking parts are arranged below the supporting part in a circumferential array and are used for preventing the circuit breaker from falling off; the circuit breaker fixing device comprises a supporting part and a plurality of mounting parts, and the plurality of mounting parts are mounted on the supporting part in a circumferential array and are used for fixing a circuit breaker on the supporting part; wherein the locking part is used for further fixing the mounting part on the supporting part. According to the high-voltage vacuum circuit breaker, the locking part is arranged, so that the problems that the existing high-voltage vacuum circuit breaker is inconvenient to further fix during use and installation, the circuit breaker is loosened and falls off due to factors such as vibration, external force and the like, and the stability and the reliability of equipment operation are reduced are solved.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum circuit breaker technology, and in particular relates to a high-voltage vacuum circuit breaker. Background Technology

[0002] In modern power systems, with the continuous expansion of industrial production, the accelerated development of urban construction, and the vigorous development of various emerging technology industries, higher requirements are placed on the stability and reliability of power supply. As a crucial switching device in the power system, the high-voltage vacuum circuit breaker undertakes the key task of controlling and protecting circuits, and its performance directly affects the safe and stable operation of the entire power system.

[0003] However, existing high-voltage vacuum circuit breakers are not easy to secure during installation. The circuit breakers may loosen or fall off due to vibration, external forces, or other factors, which reduces the stability and reliability of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a high-voltage vacuum circuit breaker. By setting a locking part, it solves the problem that existing high-voltage vacuum circuit breakers are not easy to fix during installation, and the circuit breaker may loosen or fall off due to vibration, external force and other factors, which leads to a decrease in the stability and reliability of the equipment operation.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a high-voltage vacuum circuit breaker, comprising a circuit breaker and further comprising:

[0007] The circuit breaker includes a support section located below it for providing support; a locking section consisting of several locking sections arranged in a circular array below it to prevent the circuit breaker from falling off; and a mounting section consisting of several mounting sections arranged in a circular array on it for fixing the circuit breaker to it. The locking sections further secure the mounting sections on the support section, and each locking section is adapted to one of the mounting sections.

[0008] Furthermore, two U-shaped blocks are fixedly connected to the bottom of the circuit breaker, and a mounting plate is provided at the bottom of the two U-shaped blocks; wherein, the mounting part fixes the circuit breaker to the mounting plate through the corresponding U-shaped blocks.

[0009] Furthermore, the locking part includes a locking assembly mounted on the bottom of the mounting plate for limiting the position of the mounting part; and a latching assembly disposed within the locking assembly for restricting the rotation of the locking assembly; wherein the locking assembly clamps and limits the mounting part, and the locking assembly cooperates with the latching assembly to prevent the circuit breaker from falling off the mounting plate. Furthermore, the mounting part includes a transmission assembly disposed on the U-shaped block on the right side and extending outward therefrom for providing a leverage point for operating the mounting part; and an elastic assembly disposed at the bottom of the transmission assembly and extending into the locking assembly; wherein the locking assembly clamps and limits the elastic assembly extending therein to prevent the circuit breaker from falling off.

[0010] Furthermore, the locking assembly includes two slide rods fixedly connected to the bottom of the mounting plate, and limit blocks are slidably connected to the outer walls of the two slide rods. A protective shell is rotatably connected to the bottom of the mounting plate, and limit components are provided on the protective shell. The two limit blocks are both annular, and their adjacent sides are in contact with each other. Both limit blocks and the two slide rods are inside the protective shell.

[0011] Furthermore, the buckle assembly includes two rectangular fixing blocks fixedly connected to the bottom of the mounting plate. A spring telescopic rod is fixedly connected to the side of each rectangular fixing block that is far apart from each other. An arc-shaped limiting block is fixedly connected to the side of each spring telescopic rod that is far apart from each other. The inner wall of the protective shell is provided with several limiting grooves, and the two arc-shaped limiting blocks are matched with several limiting grooves. The side of each arc-shaped limiting block that is far apart from each other is arc-shaped, so that it can be locked into the corresponding limiting groove, and at the same time, it can be moved away from the limiting groove by applying an appropriate force.

[0012] Furthermore, the mounting part includes a slide rod slidably connected to the inner wall of the top of the U-shaped block on the right side. The top of the slide rod extends to the outside of the U-shaped block on the right side. A hinge rod passes through the slide rod and is rotatably connected to the slide rod. A handle is rotatably connected to the outer wall of the hinge rod. The handle is used to provide a point of force, and the bottom of the handle is designed with an arc shape to allow it to rotate smoothly.

[0013] Furthermore, the elastic component includes a second slide rod fixedly connected to the bottom of the first slide rod, the bottom of the second slide rod extending into the protective shell, the second slide rod slidably connected to the protective shell, the second slide rod slidably connected to the mounting plate, a spring sleeved on the outer wall of the second slide rod, and a slot formed on the outer wall of the second slide rod; wherein, the top and bottom of the spring are fixedly connected to the U-shaped block and the second slide rod located on the right side, respectively, and the two limiting blocks limit the mounting part through the slot.

[0014] Furthermore, the limiting component includes two arc-shaped grooves formed in the protective shell, each arc-shaped groove being provided with a circular slider. The outer walls of the two circular sliders are in contact with the two arc-shaped grooves respectively, and the tops of the two circular sliders are fixedly connected to the two limiting blocks respectively. When the protective shell is rotated, the two arc-shaped grooves will drive the two limiting blocks to move through the two circular sliders respectively, and the two sliding rods provide guidance for the movement of the two limiting blocks.

[0015] This utility model has the following beneficial effects:

[0016] 1. After initial installation by setting a locking part, the protective shell is rotated. The protective shell drives two circular sliders to move in the same direction through two arc-shaped grooves. The two circular sliders drive two limit blocks to move closer to each other under the limit of the sliding rod until the two limit blocks contact each other. At this time, the side of the two limit blocks that are close to each other will also contact the inner wall of the slot, thereby preventing the sliding rod from moving up and down and achieving the purpose of limiting the installation part. During this process, the arc-shaped limit block will be squeezed by the limit groove in which it is located, thereby moving it closer to the rectangular fixed block and compressing the spring telescopic rod until the arc-shaped limit block enters the next limit groove. The spring telescopic rod rebounds and drives the arc-shaped limit block to lock in this limit groove, preventing the protective shell from rotating accidentally. This process is repeated until the installation part is locked, thereby completing the further fixation of the circuit breaker and effectively preventing the circuit breaker from falling off the support structure. This avoids the circuit breaker from loosening or falling off due to vibration, external force, and other factors, ensuring the stability and reliability of the equipment during operation.

[0017] 2. By setting up the mounting section, when in use, lifting one side of the handle causes the curved surface of the handle to be squeezed by the U-shaped block, causing it to rotate around the second slide rod and raise the hinge rod. The hinge rod then drives the second slide rod to rise via the first slide rod, continuing until the handle is vertical. At this point, the contact surface between the handle and the U-shaped block is flat, ensuring the handle can stand upright on the U-shaped block. The second slide rod is also locked inside the U-shaped block, and the spring is compressed by the second slide rod. Similarly, adjust the other four mounting sections, place the circuit breaker on the mounting plate via two U-shaped blocks, and adjust so that the four second slide rods align with the corresponding holes on the mounting plate. Then, turn the handle to reset the springs and allow the four second slide rods to lock onto the mounting plate through their corresponding holes, completing the initial installation of the circuit breaker. Similarly, lifting the handle again allows the circuit breaker to be easily removed, facilitating inspection, repair, or replacement of parts by maintenance personnel, reducing equipment downtime and improving the maintenance efficiency of the power system.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the front sectional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model viewed from below;

[0022] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0023] Figure 4 This is a partial cross-sectional view of the locking part of this utility model;

[0024] Figure 5 This utility model Figure 4 A magnified structural diagram of B in the diagram;

[0025] Figure 6 This is a partial cross-sectional view of the mounting section of this utility model;

[0026] Figure 7 This utility model Figure 6 A magnified structural diagram of C;

[0027] Figure 8 This is a schematic diagram of the overall structure of the slide bar II of this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Support unit; 111. Circuit breaker; 112. U-shaped block; 113. Mounting plate; 2. Locking unit; 21. Locking assembly; 211. Slide rod; 212. Limiting block; 213. Protective shell; 214. Arc groove; 215. Circular slider; 22. Buckle assembly; 221. Rectangular fixing block; 222. Spring telescopic rod; 223. Arc limiting block; 224. Limiting groove; 3. Mounting unit; 31. Transmission assembly; 311. Slide rod one; 312. Hinge rod; 313. Handle; 32. Elastic assembly; 321. Slide rod two; 322. Spring; 323. Slot. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1-8 As shown, this utility model is a high-voltage vacuum circuit breaker, including a circuit breaker 111, and further including: a support part 1, which is disposed below the circuit breaker 111 to provide support for the circuit breaker 111; a locking part 2, of which a plurality of locking parts 2 are arranged in a circumferential array below the support part 1 to prevent the circuit breaker 111 from falling off; and a mounting part 3, of which a plurality of mounting parts 3 are arranged in a circumferential array and mounted on the support part 1 to fix the circuit breaker 111 on the support part 1; wherein, the locking parts 2 are used to further fix the mounting parts 3 on the support part 1, and the plurality of locking parts 2 are respectively adapted to the plurality of mounting parts 3, and two U-shaped blocks 112 are fixedly connected to the bottom of the circuit breaker 111, and mounting plates 113 are provided at the bottom of the two U-shaped blocks 112; wherein, the mounting parts 3 fix the circuit breaker 111 on the mounting plates 113 through the corresponding U-shaped blocks 112.

[0032] The locking part 2 includes a locking assembly 21, which is installed at the bottom of the mounting plate 113 and is used to limit the mounting part 3; and a latching assembly 22, which is disposed inside the locking assembly 21 and is used to limit the rotation of the locking assembly 21. The locking assembly 21 clamps and limits the mounting part 3, and the locking assembly 21 cooperates with the latching assembly 22 to prevent the circuit breaker 111 from falling off the mounting plate 113. The locking assembly 21 includes two sliding rods 211 fixedly connected to the bottom of the mounting plate 113, and the outer walls of the two sliding rods 211 are slidably connected to a limiting mechanism. The bottom of the mounting plate 113 is rotatably connected to the positioning block 212, and a protective shell 213 is provided on the protective shell 213. The two positioning blocks 212 are both annular, and their sides are in contact with each other. Both positioning blocks 212 and two sliding rods 211 are inside the protective shell 213. The latching assembly 22 includes two rectangular fixing blocks 221 fixedly connected to the bottom of the mounting plate 113. A spring telescopic rod 222 is fixedly connected to the side of each rectangular fixing block 221 that is furthest from each other. An arc-shaped positioning block 211 is fixedly connected to the side of each spring telescopic rod 222 that is furthest from each other. 23. The inner wall of the protective shell 213 is provided with several limiting grooves 224, and the two arc-shaped limiting blocks 223 are adapted to the several limiting grooves 224. Among them, the side of the two arc-shaped limiting blocks 223 that is far apart from each other is arc-shaped, so that it can be locked into the corresponding limiting groove 224, and at the same time, it can be released from the limiting groove 224 by applying appropriate force. The limiting element includes two arc-shaped grooves 214 opened in the protective shell 213, and a circular slider 215 is provided in each of the two arc-shaped grooves 214. The outer walls of the two circular sliders 215 are in contact with the two arc-shaped grooves 214 respectively. The top of the slider 215 is fixedly connected to two limit blocks 212 respectively. When the protective shell 213 is rotated, the two arc-shaped grooves 214 will drive the two limit blocks 212 to move through the two circular sliders 215 respectively. The two sliding rods 211 provide guidance for the movement of the two limit blocks 212. By setting the locking part 2, the circuit breaker 111 is further fixed, which effectively prevents the circuit breaker 111 from falling off the support structure and avoids the circuit breaker 111 from loosening or falling off due to vibration, external force and other factors, thus ensuring the stability and reliability of the equipment during operation.

[0033] Mounting part 3 includes a transmission assembly 31, which is disposed on the U-shaped block 112 on the right side and extends to its outer side to provide a force point for operating mounting part 3; and an elastic assembly 32, which is disposed at the bottom of the transmission assembly 31 and extends into the locking assembly 21; wherein the locking assembly 21 clamps and limits the elastic assembly 32 extending therein to prevent the circuit breaker 111 from falling off. The transmission assembly 31 includes a slide rod 311 slidably connected to the inner wall of the top of the U-shaped block 112 on the right side, the top of the slide rod 311 extending to the outside of the U-shaped block 112 on the right side, and a hinge rod 312 passing through the slide rod 311. The hinge rod 312 is rotatably connected to the slide rod 311, and a handle 313 is rotatably connected to the outer wall of the hinge rod 312; wherein the handle 313 is used to provide a force point, and the bottom of the handle 313 adopts a... The arc-shaped design allows for smooth rotation. The elastic component 32 includes a second slide rod 321 fixedly connected to the bottom of the first slide rod 311. The bottom of the second slide rod 321 extends into the protective shell 213. The second slide rod 321 is slidably connected to the protective shell 213 and to the mounting plate 113. A spring 322 is fitted on the outer wall of the second slide rod 321, and a slot 323 is provided on the outer wall of the second slide rod 321. The top and bottom of the spring 322 are fixedly connected to the U-shaped block 112 on the right side and the second slide rod 321, respectively. The two limiting blocks 212 limit the mounting part 3 through the slot 323. By setting the mounting part 3, the circuit breaker 111 can be easily removed, which facilitates maintenance personnel to inspect, repair, or replace parts of the circuit breaker 111, reducing equipment downtime and improving the maintenance efficiency of the power system.

[0034] A specific application of this embodiment is as follows: In use, lifting one side of the handle 313 causes the arc-shaped surface of the handle 313 to be squeezed by the U-shaped block 112, thus causing it to rotate around the second slide rod 321 and raising the hinge rod 312. The hinge rod 312 then drives the second slide rod 321 to rise via the first slide rod 311 until the handle 313 is vertical. At this point, the contact surface between the handle 313 and the U-shaped block 112 is flat, ensuring it can stand upright on the U-shaped block 112. The second slide rod 321 is also locked inside the U-shaped block 112, and the spring 322 is compressed by the second slide rod 321. Similarly, after adjusting the other four mounting parts 3, the circuit breaker 111 is placed on the mounting plate 113 via two U-shaped blocks 112. Circuit breaker 111 is a ZW7-40.5 / 1250A outdoor high-voltage vacuum circuit breaker. Its working principle is as follows: During closing operation, the operating mechanism, through transmission components, causes the moving contact of the vacuum arc-extinguishing chamber to overcome the contact spring pressure and rapidly move towards the stationary contact until the two make close contact, establishing a current path, completing the closing operation, connecting the circuit, and allowing power transmission. During opening operation, the operating mechanism actuates, causing the moving contact to quickly separate from the stationary contact under the action of the contact spring and the opening spring, generating an electric arc in the vacuum environment. Due to the high insulation strength and excellent arc-extinguishing performance of the vacuum, the arc is rapidly extinguished when the current crosses zero, thereby cutting off the circuit and realizing the control and protection of the power system, ensuring the safety of the power system. To ensure safe and stable operation, adjust the four sliding rods 321 to align with the corresponding holes on the mounting plate 113. Then, rotate the handle 313 to reset the spring 322, causing the four sliding rods 321 to lock onto the mounting plate 113 through their corresponding holes, completing the initial installation of the circuit breaker 111. Similarly, lifting the handle 313 again allows the circuit breaker 111 to be removed. After the initial installation is secured, rotate the protective shell 213. The protective shell 213, through two arc-shaped grooves 214, drives two circular sliders 215 to move accordingly. The two circular sliders 215 then drive two limit blocks 212 to move relative to the sliding rods 211. The two limit blocks 212 move closer to each other until they come into contact. At this point, the side of the two limit blocks 212 that are close to each other will also come into contact with the inner wall of the slot 323, thereby preventing the slide rod 321 from moving up and down and achieving the purpose of limiting the mounting part 3. During this process, the arc-shaped limit block 223 will be squeezed by the limit groove 224 in which it is located, thereby moving it closer to the rectangular fixing block 221 and compressing the spring telescopic rod 222 until the arc-shaped limit block 223 enters the next limit groove 224. The spring telescopic rod 222 rebounds and drives the arc-shaped limit block 223 to be stuck in this limit groove 224, preventing the protective shell 213 from rotating accidentally. This process is repeated until the mounting part 3 is locked.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-voltage vacuum circuit breaker, comprising a circuit breaker (111), characterized in that, Also includes: A support part (1) is disposed below the circuit breaker (111) and is used to provide support for the circuit breaker (111); A locking part (2), wherein a plurality of locking parts (2) are provided, and the plurality of locking parts (2) are arranged in a circumferential array below the support part (1) to prevent the circuit breaker (111) from falling off; and Mounting part (3), wherein a plurality of mounting parts (3) are provided, and the plurality of mounting parts (3) are mounted on the support part (1) in a circumferential array for fixing the circuit breaker (111) on the support part (1); The bottom of the circuit breaker (111) is fixedly connected to two U-shaped blocks (112), and the bottom of the two U-shaped blocks (112) is provided with mounting plates (113). The locking part (2) includes a locking assembly (21), which is mounted on the bottom of the mounting plate (113) and is used to limit the mounting part (3); and The latching assembly (22) is disposed within the locking assembly (21) and is used to restrict the rotation of the locking assembly (21); The mounting part (3) includes a transmission assembly (31) which is disposed on the U-shaped block (112) located on the right side and extends to its outer side to provide a point of force for operating the mounting part (3); An elastic component (32) is disposed at the bottom of the transmission component (31) and extends into the locking component (21); Among them, the locking part (2) is used to further fix the mounting part (3) on the support part (1). Several locking parts (2) are adapted to several mounting parts (3). The mounting part (3) fixes the circuit breaker (111) on the mounting plate (113) through the corresponding U-shaped block (112). The locking assembly (21) is used to clamp and limit the mounting part (3). The locking assembly (21) cooperates with the snap-fit ​​assembly (22) to prevent the circuit breaker (111) from falling off the mounting plate (113). The locking assembly (21) clamps and limits the elastic component (32) extending into it to prevent the circuit breaker (111) from falling off.

2. A high-voltage vacuum circuit breaker according to claim 1, characterized in that, The locking assembly (21) includes two slide rods (211) fixedly connected to the bottom of the mounting plate (113). The outer walls of the two slide rods (211) are slidably connected to limit blocks (212). The bottom of the mounting plate (113) is rotatably connected to a protective shell (213), and the protective shell (213) is provided with limit components. The two limiting blocks (212) are both circular, and their sides are in contact with each other. The two limiting blocks (212) and the two sliding rods (211) are all inside the protective shell (213).

3. A high-voltage vacuum circuit breaker according to claim 2, characterized in that, The buckle assembly (22) includes two rectangular fixing blocks (221) fixedly connected to the bottom of the mounting plate (113). A spring telescopic rod (222) is fixedly connected to the side of the two rectangular fixing blocks (221) that is far apart from each other. An arc-shaped limiting block (223) is fixedly connected to the side of the two spring telescopic rods (222) that is far apart from each other. A number of limiting grooves (224) are opened on the inner wall of the protective shell (213). The number of limiting grooves (224) of the two arc-shaped limiting blocks (223) are adapted to each other. Among them, the two arc-shaped limiting blocks (223) are designed with arc shape on the side that is far away from each other, so that they can be inserted into the corresponding limiting groove (224), and at the same time, they can be removed from the limiting groove (224) by applying appropriate force.

4. A high-voltage vacuum circuit breaker according to claim 3, characterized in that, The transmission assembly (31) includes a slide rod (311) slidably connected to the inner wall of the top of the U-shaped block (112) on the right side. The top of the slide rod (311) extends to the outside of the U-shaped block (112) on the right side. A hinge rod (312) passes through the slide rod (311) and is rotatably connected to the slide rod (311). A handle (313) is rotatably connected to the outer wall of the hinge rod (312). The handle (313) is used to provide a point of leverage, and the bottom of the handle (313) is designed with an arc shape to allow it to rotate smoothly.

5. A high-voltage vacuum circuit breaker according to claim 4, characterized in that, The elastic component (32) includes a slide rod two (321) fixedly connected to the bottom of the slide rod one (311). The bottom of the slide rod two (321) extends into the protective shell (213). The slide rod two (321) is slidably connected to the protective shell (213) and slidably connected to the mounting plate (113). A spring (322) is sleeved on the outer wall of the slide rod two (321), and a slot (323) is opened on the outer wall of the slide rod two (321). The top and bottom of the spring (322) are fixedly connected to the U-shaped block (112) and the slide bar (321) located on the right side, respectively, and the two limiting blocks (212) limit the mounting part (3) through the slot (323).

6. A high-voltage vacuum circuit breaker according to claim 5, characterized in that, The limiting component includes two arc-shaped grooves (214) formed in the protective shell (213), and a circular slider (215) is provided in each of the two arc-shaped grooves (214). The outer walls of the two circular sliders (215) are in contact with the two arc-shaped grooves (214) respectively, and the tops of the two circular sliders (215) are fixedly connected to the two limiting blocks (212) respectively. When the protective shell (213) is rotated, the two arc-shaped grooves (214) will drive the two limit blocks (212) to move through the two circular sliders (215), and the two slide rods (211) will provide guidance for the movement of the two limit blocks (212).

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