Arc extinguish chamber with anti-breaking structure

Abstract

The utility model discloses an arc extinguish chamber with an anti-breaking structure, and particularly relates to the technical field of arc extinguish chambers, the arc extinguish chamber comprises a plurality of assembling plates which are modularly designed, the assembling is self-assembled, the assembling of the arc extinguish chamber is more flexible and efficient, the transportation process is simplified by the modular design, the complexity of the whole structure is reduced, and the production cost is reduced. The limiting windows and the limiting seats ensure stable connection between the assembly plates, prevent relative displacement and improve the structural stability, the arc-shaped plates and the buffer pads effectively absorb vibration and reduce potential damage of impact to the arc extinguish chamber, resistance is generated by friction between hydraulic oil and the inner wall and the moving seat in the flowing process, the speed of the moving seat is reduced, vibration and impact are prevented, and the service life of the arc extinguish chamber is prolonged. The pressure difference generated by the hydraulic oil in the cavity applies a reverse acting force to the moving seat, the control precision is improved, compared with a traditional elastic piece damping technology, the hydraulic damping system has higher precision and stability, dynamic load control is more effective, and the stability and reliability of the arc extinguish chamber in the transportation and use process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of arc extinguishing chambers, in particular to an arc extinguishing chamber with an anti-crushing structure. Background Art

[0002] Interrupters, also known as vacuum interrupters, are core components of medium- and high-voltage power switches. Their primary function is to rapidly extinguish arcs and suppress current flow in medium- and high-voltage circuits after power is disconnected, thanks to the excellent insulation properties of the vacuum within the tube, preventing accidents and incidents. They are primarily used in power transmission and distribution control systems, as well as in power distribution systems for metallurgy, mining, petroleum, chemical engineering, railways, broadcasting, communications, and industrial high-frequency heating. They offer advantages such as energy conservation, material conservation, fire and explosion resistance, compact size, long lifespan, low maintenance, reliable operation, and zero pollution. Vacuum interrupters are categorized by their intended use: circuit breaker interrupters and load switch interrupters. Circuit breaker interrupters are primarily used in substations and power grid facilities within the power sector, while load switch interrupters are primarily used by end users of the power grid. Existing interrupters are mostly made of ceramic insulation, but ceramic casings are easily broken, making them susceptible to breakage during transportation. This wastes resources and causes significant economic losses.

[0003] In the prior art, for example, a Chinese patent with publication number CN211182085U discloses an external insulation protection device for an arc extinguishing chamber, which includes an outer cylinder and a clamping mechanism. The outer cylinder is cubic in shape and a cylindrical cavity for placing the arc extinguishing chamber is opened along its length. Adjustment grooves are opened on opposite sides of the outer cylinder and an installation groove for installing the clamping mechanism is opened in the adjustment groove. The clamping rod of the clamping mechanism is installed in the installation groove through a pin shaft. Cover bodies are provided at both ends of the outer cylinder. The cover body is screwed to the outer cylinder through a connecting bearing connected to the outer cover. An inner liner is connected to the outer cover through an elastic rod. The cover body is connected to both ends of the arc extinguishing chamber through the inner liner so that it is subjected to elastic force in the length direction to prevent it from being broken during transportation.

[0004] The above device can protect the arc extinguishing chamber to a certain extent, but in actual use, the arc extinguishing chamber is protected by multiple elastic parts. The elastic parts do not have damping properties. During the impact process, their own compression and extension will be more radical, and the oscillation amplitude will be larger, resulting in the arc extinguishing chamber itself being unstable. For this reason, we propose an arc extinguishing chamber with an anti-crushing structure to solve the above problem. Utility Model Content

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] To this end, the technical solution adopted in this utility model is:

[0007] The cam is connected to the hydraulic cylinder to form a circle, and the cam is connected to the hydraulic cylinder to form a circle.

[0008] Preferably, the four corners of the assembly plate are provided with limiting windows that penetrate the assembly plate, and a plurality of the limiting windows are evenly distributed around the axis of the assembly plate. An observation window is provided on the surface of the assembly plate.

[0009] Preferably, three panels are provided at the four corners of the box body formed by the plurality of assembly plates, and the three panels are sleeved on the surfaces of the four corners of the box body formed by the assembly plates.

[0010] Preferably, the three panels are made of rubber material, and the three panels are kept in contact with the surface of the assembly plate. The inner walls of the three panels are fixedly connected with a limit seat matching the limit window, and the limit seat is slidably connected to the inner wall of the limit window.

[0011] Preferably, the four hydraulic cylinders are evenly distributed around the axis of the box body formed by the multiple assembly plates, and the hydraulic cylinders are filled with hydraulic oil.

[0012] Preferably, a fixing ring groove is formed around the moving seat, and a rubber ring is built into the fixing ring groove.

[0013] Preferably, the rubber ring is sleeved on the surface of the moving seat through a fixed ring groove, the inner ring wall of the rubber ring contacts the wall of the fixed ring groove, and the outer ring wall of the rubber ring contacts and is slidably connected to the inner wall of the hydraulic cylinder.

[0014] Preferably, the four arc-shaped plates are arranged in a spherical shape, and the end surfaces of the four arc-shaped plates close to each other are in contact with the outer surface of the arc extinguishing chamber. The end surfaces of the arc-shaped plates close to each other are fixedly connected with buffer pads.

[0015] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0016] The utility model adopts a modular design, and multiple assembly plates can be assembled by themselves, making the assembly of the arc extinguishing chamber more flexible and efficient. The modular design simplifies the transportation process and reduces the complexity of the overall structure. The limit windows and limit seats ensure a stable connection between the assembly plates, prevent relative displacement, and improve structural stability.

[0017] The curved plate and buffer pad design effectively absorbs vibration and reduces the potential damage to the arc extinguishing chamber caused by impact. The friction between the hydraulic oil and the inner wall and the moving seat during the flow process generates resistance, slowing down the speed of the moving seat and preventing vibration and impact. The pressure difference generated by the hydraulic oil in the chamber exerts a reverse force on the moving seat, further controlling the movement and improving the control accuracy. Compared with the traditional elastic part shock absorption technology, the hydraulic damping system has higher accuracy and stability, and controls dynamic loads more effectively, thereby improving the stability and reliability of the arc extinguishing chamber during transportation and use, effectively preventing breakage, and enhancing its stability and reliability during transportation and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the utility model as a whole.

[0019] Figure 2 This is a schematic diagram of the connection structure of multiple assembly plates of the utility model.

[0020] Figure 3 This is a schematic diagram of the assembly structure of the assembly plate and three panels of the utility model.

[0021] Figure 4 This is a schematic diagram of the control component structure of the utility model.

[0022] Figure 5 This is a schematic diagram of the assembly structure of the arc plate and the push seat of the utility model.

[0023] In the figure: 1. Assembly plate; 101. Limit window; 102. Three-panel plate; 103. Limit seat; 104. Observation window; 2. Control assembly; 201. Hydraulic cylinder; 202. Moving seat; 203. Liquid flow hole; 204. Fixed ring groove; 205. Rubber ring; 206. Moving roller; 207. Push seat; 208. Arc plate; 209. Buffer pad. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example: Figure 1-Figure 5 As shown, the utility model provides an arc extinguishing chamber with an anti-crushing structure, including an assembly plate 1, which is provided with six assembly plates 1. The six assembly plates 1 are in contact with each other and surround each other to form a box structure. The four corners of the assembly plate 1 are provided with a limit window 101 that runs through itself, and multiple limit windows 101 are evenly distributed around the axis of the assembly plate 1. Three panels 102 are provided at the four corners of the box formed by the multiple assembly plates 1. The three panels 102 are sleeved on the four corner surfaces of the box formed by the assembly plate 1. The three panels 102 are made of rubber. The three panels 102 are kept in contact with the surface of the assembly plate 1. The inner walls of the three panels 102 are fixedly connected with a limit seat 103 that matches the limit window 101. The limit seat 103 is slidably connected to the inner wall of the limit window 101. The inner cavity of the box formed by the six assembly plates 1 is provided with a control component 2 for stabilizing the arc extinguishing chamber. An observation window 104 is provided on the surface of the assembly plate 1. The multiple assembly plates 1 can be assembled and installed by themselves, which is convenient for fixing the arc extinguishing chamber and is beneficial for subsequent assembly and transportation.

[0026] Furthermore, a hydraulic cylinder 201 is fixedly connected to the end surfaces of four assembly plates 1 among the six assembly plates 1, and the four hydraulic cylinders 201 are evenly distributed around the axis of the box body formed by the multiple assembly plates 1. The hydraulic cylinder 201 contains hydraulic oil, and the hydraulic cylinder 201 contains a moving seat 202. The moving seat 202 is slidably connected to the inner wall of the hydraulic cylinder 201. A fixed ring groove 204 is opened around the moving seat 202, and a rubber ring 205 is built in the fixed ring groove 204. The rubber ring 205 is sleeved on the surface of the moving seat 202 through the fixed ring groove 204, and the inner ring wall of the rubber ring 205 It contacts the wall of the fixed ring groove 204, and the outer ring wall of the rubber ring 205 contacts the inner wall of the hydraulic cylinder 201 and is slidably connected thereto. A plurality of flow holes 203 for the flow of hydraulic oil are provided on the surface of the moving seat 202. The moving seat 202 divides the hydraulic cylinder 201 into two chambers. A moving roller 206 is fixedly connected to the side of the moving seat 202 close to the center of the box body formed by the assembly plate 1. The end of the moving roller 206 away from the moving seat 202 passes through the hydraulic cylinder 201 and extends to the outside. The moving roller 206 coincides with the axis of the assembly plate 1, and the moving roller 206 is slidably connected to the hydraulic cylinder 201. The moving roller 206 is fixedly connected to a push seat 207 at one end inside the box body formed by the assembly plate 1. The push seat 207 is fixedly connected to an arc plate 208 on one side close to the center of the box body formed by the assembly plate 1. The four arc plates 208 are surrounded in a spherical shape. The end faces of the four arc plates 208 close to each other are in contact with the outer surface of the arc extinguishing chamber. The end faces of the arc plates 208 close to each other are fixedly connected to a buffer pad 209. After the arc extinguishing chamber is fixed and transported, the damping of the buffer during transportation is achieved by the flow friction of the liquid during the movement. The hydraulic oil inside the hydraulic cylinder 201 is During the movement of 202, the hydraulic oil enters the two chambers separated by the moving seat 202 through the liquid flow hole 203. When the moving seat 202 moves, the hydraulic oil flows in the chamber, and this flow will produce a damping effect. The damping force inside the hydraulic cylinder 201 is generated by the flow friction and pressure change of the hydraulic oil in the liquid flow hole 203 and the chamber. The existence of this damping force helps to control the moving speed of the moving seat 202 and slow down the impact force during its movement. Compared with the existing device that only uses elastic parts for shock absorption, it has effective buffering and shock absorption effects.

[0027] Working principle: Six assembly plates 1 are arranged in a circle to form a box structure. Multiple assembly plates 1 can be assembled and installed by themselves, which is convenient for assembling and transporting the arc extinguishing chamber. During transportation, this design facilitates the fixation and protection of the overall structure. The design of the limit window 101 and the limit seat 103 ensures a stable connection between the assembly plates 1 and effectively prevents the relative displacement of the assembly plates 1. This design ensures the stability of the arc extinguishing chamber during transportation and operation, prevents the structure from loosening or being damaged. Multiple assembly plates 1 can be assembled by themselves. This modular design makes the assembly of the arc extinguishing chamber more flexible and efficient. At the same time, this design also facilitates the transportation and installation of the arc extinguishing chamber and reduces the complexity of operation.

[0028] A moving seat 202 is located within the hydraulic cylinder 201. This seat 202 is slidably connected to the inner wall of the cylinder 201 and directs hydraulic oil between two chambers via multiple fluid flow holes 203. This design implements two primary damping mechanisms: fluid friction damping and pressure damping. Fluid friction damping refers to the resistance generated by friction between the hydraulic oil and the inner wall of the cylinder 201 and the moving seat 202 during its flow. The flow rate of the fluid is directly related to the friction of the cylinder 201. As the flow rate increases, the friction also increases, thereby applying a damping force to the movement of the moving seat 202. This damping force effectively slows the speed of the moving seat 202, preventing vibration and shock caused by excessive movement. Pressure damping, on the other hand, stems from the pressure differential generated by the hydraulic oil within the chambers. As the moving seat 202 moves, the pressure of the hydraulic oil within the chambers changes. This pressure differential generates a counterforce on the moving seat 202, further inhibiting its movement. This mechanism plays a significant role in slowing movement and improving control precision, providing excellent shock absorption during equipment transportation and operation. The combined design of curved plates 208 and cushions 209 effectively absorbs vibration, reducing potential damage to the arc extinguishing chamber caused by impact during transportation. Compared to traditional elastic element shock absorption technology, this hydraulic damping system offers greater precision and stability, better controlling dynamic loads during movement, significantly improving the stability and reliability of the arc extinguishing chamber during transportation and use, and effectively preventing breakage.

[0029] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. An arc extinguishing chamber with an anti-crushing structure, characterized in that: The invention comprises an assembly plate (1), wherein six assembly plates (1) are provided, and the six assembly plates (1) are in contact with each other and surround each other to form a box structure. The inner cavity of the box body formed by the six assembly plates (1) is provided with a control component (2) for stabilizing the arc extinguishing chamber. The end surfaces of four assembly plates (1) among the six assembly plates (1) are fixedly connected to a hydraulic cylinder (201) at the mutually adjacent ends. The hydraulic cylinder (201) is provided with a moving seat (202) therein. The moving seat (202) is slidably connected to the inner wall of the hydraulic cylinder (201). The surface of the moving seat (202) is provided with a plurality of liquid flow holes (203) for the flow of hydraulic oil. The moving seat (202) connects the hydraulic cylinder ( 201) is divided into two chambers, the moving seat (202) is fixedly connected to a moving roller (206) on one side close to the center of the box body formed by the assembly plate (1), the end of the moving roller (206) away from the moving seat (202) passes through the hydraulic cylinder (201) and extends to the outside, the moving roller (206) coincides with the axis of the assembly plate (1), the moving roller (206) is slidably connected to the hydraulic cylinder (201), the moving roller (206) is fixedly connected to a push seat (207) on one end inside the box body formed by the assembly plate (1), and the push seat (207) is fixedly connected to an arc plate (208) on one side close to the center of the box body formed by the assembly plate (1).

2. The arc extinguishing chamber with an anti-fragmentation structure according to claim 1, characterized in that: The four corners of the assembly plate (1) are each provided with a limiting window (101) penetrating the assembly plate, and a plurality of the limiting windows (101) are evenly distributed around the axis of the assembly plate (1). An observation window (104) is provided on the surface of the assembly plate (1).

3. The arc extinguishing chamber with an anti-fragmentation structure according to claim 2, characterized in that: Three panels (102) are provided at the four corners of the box body formed by the plurality of assembly plates (1), and the three panels (102) are sleeved on the surfaces of the four corners of the box body formed by the assembly plates (1).

4. The arc extinguishing chamber with an anti-fragmentation structure according to claim 3, characterized in that: The three panels (102) are made of rubber material, and the three panels (102) are kept in contact with the surface of the assembly plate (1). The inner walls of the three panels (102) are fixedly connected with a limit seat (103) that matches the limit window (101), and the limit seat (103) is slidably connected to the inner wall of the limit window (101).

5. The arc extinguishing chamber with an anti-fragmentation structure according to claim 1, characterized in that: The four hydraulic cylinders (201) are evenly distributed around the axis of the box body formed by the plurality of assembly plates (1), and the hydraulic cylinders (201) are filled with hydraulic oil.

6. The arc extinguishing chamber with an anti-fragmentation structure according to claim 1, characterized in that: The moving seat (202) is provided with a fixed ring groove (204) around its periphery, and a rubber ring (205) is built into the fixed ring groove (204).

7. The arc extinguishing chamber with an anti-fragmentation structure according to claim 6, characterized in that: The rubber ring (205) is sleeved on the surface of the moving seat (202) through the fixed ring groove (204), the inner ring wall of the rubber ring (205) contacts the groove wall of the fixed ring groove (204), and the outer ring wall of the rubber ring (205) contacts the inner wall of the hydraulic cylinder (201) and is slidably connected thereto.

8. The arc extinguishing chamber with an anti-fragmentation structure according to claim 1, characterized in that: The four arc-shaped plates (208) are arranged in a spherical shape, and the end surfaces of the four arc-shaped plates (208) close to each other are in contact with the outer surface of the arc extinguishing chamber. The end surfaces of the arc-shaped plates (208) close to each other are fixedly connected with a buffer pad (209).

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