A switching device

Abstract

The utility model relates to a kind of switch device, belong to low-voltage electrical switch technical field. Including shell and the operating mechanism being arranged in the shell interior, the operating mechanism includes rotationally arranged operating shaft, rotationally arranged drive disc assembly and rotationally arranged output shaft, the operating shaft is eccentrically arranged with drive assembly in the lower end of height direction, the drive assembly is inquired into drive disc assembly, make drive disc assembly act with the action of operating shaft, further drive output shaft rotation, wherein, the axis of operating shaft and the axis of output shaft are perpendicular to each other. Advantage: transmission structure is simple and reliable, split and combine quickly and low in production cost can realize unrelated manpower.

Description

Technical Field

[0001] This utility model belongs to the field of low-voltage electrical switch technology, and specifically relates to a switch device. Background Technology

[0002] Switchgear in the low-voltage electrical field enables the safe and reliable connection and disconnection of circuits. During circuit disconnection (especially under load), an electric arc is generated between the contacts of the switchgear. This arc is a high-temperature, high-energy plasma; if it is slowly or ineffectively extinguished, it can cause severe electrolytic corrosion (ablation) of the switchgear's contact system, affecting not only its electrical life but also potentially leading to safety accidents such as phase-to-phase short circuits and equipment explosions. Therefore, switchgear must possess rapid disconnection and closure functions. Rapid disconnection minimizes arcing time and reduces arc energy, thus protecting the contacts; rapid closure effectively suppresses potential pre-breakdown arcing during the closing process, ensuring safe circuit connection.

[0003] Currently available switch operating devices, in order to achieve the aforementioned rapid opening and closing function, typically employ complex structural designs. Common structures often utilize spring energy storage mechanisms, coupled with a series of linkages, gears, and latches. While this complex structure achieves rapid operation to a certain extent, it also introduces inherent drawbacks such as unreliable performance, lower safety, and shorter service life.

[0004] In view of the aforementioned existing technology, the applicant has made beneficial designs, and the technical solutions to be introduced below are produced in this context. Utility Model Content

[0005] The purpose of this utility model is to provide a switching device with a simple and reliable transmission structure, rapid opening and closing, and safety and durability.

[0006] The purpose of this utility model is achieved as follows: a switching device includes a housing and an operating mechanism disposed inside the housing. The operating mechanism includes a rotating operating shaft, a rotating drive disk assembly, and a rotating output shaft. The operating shaft has a drive assembly eccentrically disposed at its lower end in the height direction. The drive assembly extends into the drive disk assembly, causing the drive disk assembly to move with the movement of the operating shaft, thereby driving the output shaft to rotate. The axis of the operating shaft and the axis of the output shaft are perpendicular to each other.

[0007] In a specific embodiment of this utility model, the drive assembly includes a transmission disk and a drive shaft. The transmission disk is fixedly connected to the lower end of the operating shaft, and the drive shaft is disposed on the transmission disk and located radially outside the operating shaft.

[0008] In another specific embodiment of this utility model, the drive shaft is arranged parallel to the operating shaft.

[0009] In another specific embodiment of this utility model, rollers are provided on the drive shaft.

[0010] In another specific embodiment of this utility model, the drive disk assembly includes a first rotating plate, a second rotating plate, a first connecting shaft, a second connecting shaft, a first lever, a second lever, and a rotary shaft. The first rotating plate and the second rotating plate are arranged parallel to each other and face to face, and their centers are connected by the rotary shaft. The first connecting shaft, the second connecting shaft, the first lever, and the second lever are disposed between the first rotating plate and the second rotating plate. The first connecting shaft and the second connecting shaft, as well as the first lever and the second lever, are symmetrically distributed on both sides of the central plane formed by the rotation center of the operating shaft and the rotation center of the drive disk assembly, and the first lever and the second lever are located inside the first connecting shaft and the second connecting shaft.

[0011] In another specific embodiment of this utility model, the drive shaft extends between the first lever and the second lever, and during the switch opening and closing operation, the drive shaft contacts and engages with the first lever and the second lever respectively.

[0012] In a further specific embodiment of this utility model, the operating mechanism further includes at least one energy storage spring device disposed on one side of the output shaft. The energy storage spring device stores energy under the drive of the drive disk assembly. When the drive disk assembly reaches the dead point position, the energy storage spring device stores energy to the maximum value. When the drive disk assembly passes the dead point position, the energy storage spring device releases energy to allow the drive disk assembly to continue rotating so as to achieve operation without human intervention.

[0013] The present invention, by adopting the above-mentioned structure, has the following advantages compared with the prior art: due to the simplification and optimization of the structure, the impact and wear between moving parts are effectively reduced, while the production cost is reduced, the operation is more reliable, and human-free operation is achieved. Attached Figure Description

[0014] Figure 1 This is a perspective view of the switch described in this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is an exploded view of the assembly of the operating shaft and drive disk assembly described in this utility model. Figure 4 This is a schematic diagram showing the completed assembly of the drive disk assembly described in this utility model. Figure 5 This is an exploded view of the drive disk assembly described in this utility model; Figure 6 This is a schematic diagram of the structure of the first rotating plate and the second rotating plate described in this utility model; Figure 7 This is a schematic diagram of one side of the output shaft of the present invention; Figure 8 This is a schematic diagram of the other side of the output shaft described in this utility model; Figure 9 This is a schematic diagram showing the cooperation between the drive shaft, drive disk assembly, and energy storage spring device described in this utility model.

[0015] Figure 10 This is a schematic diagram of the engagement of the drive shaft with rollers described in this utility model.

[0016] In the figure: 1. Housing; 11. Limiting boss; 2. Operating mechanism; 21. Operating shaft; 211. Drive assembly; 2111. Transmission disc; 2112. Drive shaft; 21121. Roller; 212. Operating shaft body; 2121. Operating hole; 2122. Limiting slot; 22. Drive disc assembly; 221. First rotating plate; 222. Second rotating plate; 2211; 2221. Limiting surface; 223. First connecting shaft. 2231. First limiting groove; 224. Second connecting shaft; 2241. Second limiting groove; 225. First lever; 226. Second lever; 227. Rotary shaft; 23. Output shaft; 231. Drive unit; 232. Output connecting shaft; 24. Energy storage spring device; 241. Main spring; 242. Bracket; 2421. Abutting boss; 24211. Rotating semicircle; 2422. Waist-shaped hole; 243. Support shaft. Detailed Implementation

[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes made based on the concept of this utility model should be considered within the protection scope of this utility model.

[0018] In the following description, all directional (or orientational) concepts involving up, down, left, right, front, and back refer to the position of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be construed as a special limitation on the technical solution provided by this utility model.

[0019] Please see Figure 1 and Figure 2 This utility model relates to a switching device, including a housing 1 and an operating mechanism 2 disposed inside the housing 1. The operating mechanism 2 includes a rotating operating shaft 21, a rotating drive disk assembly 22, and a rotating output shaft 23.

[0020] See Figure 3 The operating shaft 21 includes a drive assembly 211 and an operating shaft body 212. The drive assembly 211 is eccentrically positioned below the operating shaft body 212 in the height direction. The drive assembly 211 includes a transmission disk 2111 and a drive shaft 2112. The transmission disk 2111 is fixed to the bottom end of the operating shaft body 212 through mounting holes. The top end of the operating shaft body 212 has an operating hole 2121 for engaging with the operating handle. The operating shaft body 212 has limiting slots 2122 spaced along its height in the middle for limiting and fixing with the housing 1. The operating shaft body 212, transmission disk 2111, and drive shaft 2112 are fixed together by welding or riveting, or they can be integrally formed by mold.

[0021] See Figure 4 and Figure 5 The drive disk assembly 22 includes a first rotating plate 221, a second rotating plate 222, a first connecting shaft 223, a second connecting shaft 224, a first lever 225, a second lever 226, and a rotary shaft 227. The first rotating plate 221 and the second rotating plate 222 are the same part, parallel to each other and coaxially arranged. The first rotating plate 221 and the second rotating plate 222 are fixedly connected by the first connecting shaft 223 and the second connecting shaft 224. The rotary shaft 227 passes through the center holes on the first rotating plate 221 and the second rotating plate 222 and is installed between them. The first lever 225 and the second lever 226 are pivotally connected between the first rotating plate 221 and the second rotating plate 222. The first connecting shaft 223, the second connecting shaft 224, the first lever 225, and the second lever 226 are symmetrically arranged on both sides of the central plane formed by the rotation center of the operating shaft 21 and the rotation center of the drive disk assembly 22, and the first lever 225 and the second lever 226 are located inside the first connecting shaft 223 and the second connecting shaft 224. (See...) Figure 6 The first rotating plate 221 and the second rotating plate 222 are provided with limiting surfaces 2211 (2221) symmetrically on their outer peripheral surfaces and on both sides. The housing 1 is provided with a corresponding limiting boss 11. The limiting surface 2211 (2221) and the limiting boss 11 cooperate to achieve the limiting of the closing and opening positions.

[0022] See Figure 7 and Figure 8 The number of output shafts 23 is two, which are respectively arranged between the front and rear sides of the drive disk assembly 22 and the housing 1. A pair of drive parts 231 are provided symmetrically on one end face of the output shaft 23 for driving the contact system to realize the opening and closing of the switch; the output shaft 23 is connected to the first rotating plate 221 and the second rotating plate 222 respectively through the output connecting shaft 232 on the other end face to form a whole.

[0023] See Figure 9 and combined Figure 2 The operating mechanism 2 further includes at least one energy storage spring device 24 disposed on one side of the output shaft 23. In this embodiment, one pair of energy storage spring devices 24 is shown. The energy storage spring device 24 stores energy under the drive of the drive disk assembly 22. When the drive disk assembly 22 reaches the dead center position, the energy storage spring device 24 stores energy to its maximum value. When the drive disk assembly 22 passes the dead center position, the energy storage spring device 24 releases energy, allowing the drive disk assembly 22 to continue rotating to achieve operation without human intervention.

[0024] Further details to follow. Figure 3 The energy storage spring device 24 includes a main spring 241, a bracket 242, and a support shaft 243. The bracket 242 has an abutment boss 2421 at one end along its length and an oblong hole 2422 at the other end. The support shaft 243 is fixedly inserted into the oblong hole 2422. One end of the main spring 241 abuts against the abutment boss 2421, and the other end abuts against the support shaft 243. The abutment boss 2421 has a semicircular rotating circle 24211 at the end facing the output shaft 23. The bracket 242 abuts against the first limiting groove 2231 of the first connecting shaft 223 and / or the second limiting groove 2241 of the second connecting shaft 224 of the drive disc assembly 22 via this semicircular rotating circle 24211. The energy storage spring device 24 is fixed to the housing 1 via the support shaft 243, realizing energy storage during the operation of the operating mechanism 2.

[0025] Still see Figure 3 The operating shaft 21 is secured within the housing 1 via the limiting slot 2122 and can rotate back and forth around the pivot center. The drive disk assembly 22 and the output shaft 23 are assembled together and installed in the rotation hole of the housing 1. The drive shaft 2112 extends into the drive disk assembly 22 and cooperates with the first lever 225 and the second lever 226. When the operating shaft 21 rotates back and forth, it drives the drive disk assembly 22 to rotate back and forth, enabling the energy storage spring device 24 to store energy during the operation of the operating mechanism. The operating shaft 21 can rotate within the range of 0~90°, and the drive disk assembly 22 can rotate within the range of 0~180°.

[0026] The operating principle of this utility model is as follows: Assuming the initial position of the switch is in the open position, when the switch needs to be closed, the operating shaft 21 rotates clockwise, and the eccentrically set drive shaft 2112 contacts the first lever 225 on the drive disk assembly 22, causing the drive disk assembly 22 to rotate counterclockwise, thereby driving the main springs 241 on both sides of the drive disk assembly 22 to perform closing energy storage. When the main springs 241 pass the dead point, the drive disk assembly 22 continues to rotate rapidly counterclockwise under the energy release action of the main springs 241. During this process, the first lever... When lever 225 disengages from drive shaft 2112, drive disk assembly 22 drives contact system to close instantaneously via output shaft 23, enabling operation without human intervention. Simultaneously, the limiting surfaces 2211 (2221) of the first rotating plate 221 and the second rotating plate 222 on drive disk assembly 22 abut against the limiting boss 11 on housing 1, thus restricting operating shaft 21 to a 90-degree position. The second lever 226 contacts drive shaft 2112, preparing for the next step of switch opening. Since the opening process is similar to the closing process, it will not be described in detail.

[0027] In other embodiments, such as Figure 10 As shown, rollers may also be provided on the drive shaft 2112 to achieve rolling friction with the first lever 225 and the second lever 226, thereby improving transmission efficiency.

[0028] The transmission structure of this invention is simple and compact, effectively reducing the impact and wear between moving parts, improving service life, and significantly increasing the efficiency of engagement and disengagement and the reliability of operation, thus achieving the purpose of the invention.

Claims

1. A switching device, comprising a housing (1) and an operating mechanism (2) disposed inside the housing (1), said operating mechanism (2) comprising a rotatably disposed operating shaft (21), a rotatably disposed drive disk assembly (22), and a rotatably disposed output shaft (23), characterized in that: The operating shaft (21) has a drive assembly (211) eccentrically arranged at its lower end in the height direction. The drive assembly (211) extends into the drive disk assembly (22), causing the drive disk assembly (22) to move with the operation shaft (21), thereby driving the output shaft (23) to rotate. The axis of the operating shaft (21) and the axis of the output shaft (23) are perpendicular to each other.

2. A switching device according to claim 1, characterised in that: The drive assembly (211) includes a transmission disk (2111) and a drive shaft (2112). The transmission disk (2111) is fixedly connected to the lower end of the operating shaft (21), and the drive shaft (2112) is disposed on the transmission disk (2111) and located radially outside the operating shaft (21).

3. A switching device according to claim 2, characterized in that: The drive shaft (2112) is arranged parallel to the operation shaft (21).

4. A switching device according to claim 2, characterized in that: Rollers (21121) are provided on the drive shaft (2112).

5. A switching device according to claim 2, wherein: The drive disk assembly (22) includes a first rotating plate (221), a second rotating plate (222), a first connecting shaft (223), a second connecting shaft (224), a first lever (225), a second lever (226), and a rotary shaft (227). The first rotating plate (221) and the second rotating plate (222) are arranged parallel to each other and face to face, and their centers are connected by the rotary shaft (227). The first connecting shaft (223), the second connecting shaft (224), the first lever (225), and the second lever (227) are connected by the rotary shaft (227). The lever (226) is disposed between the first rotating plate (221) and the second rotating plate (222). The first connecting shaft (223) and the second connecting shaft (224), as well as the first lever (225) and the second lever (226), are symmetrically distributed on both sides of the central plane formed by the rotation center of the operating shaft (21) and the rotation center of the drive disk assembly (22). The first lever (225) and the second lever (226) are located inside the first connecting shaft (223) and the second connecting shaft (224).

6. A switching device according to claim 5, characterised in that: The drive shaft (2112) extends between the first lever (225) and the second lever (226). During the opening and closing operation of the switch, the drive shaft (2112) contacts and engages with the first lever (225) and the second lever (226) respectively.

7. A switching device according to claim 1, wherein: The operating mechanism (2) further includes at least one energy storage spring device (24) disposed on one side of the output shaft (23). The energy storage spring device (24) stores energy under the drive of the drive disk assembly (22). When the drive disk assembly (22) reaches the dead point position, the energy storage spring device (24) stores energy to the maximum value. When the drive disk assembly (22) passes the dead point position, the energy storage spring device (24) releases energy to allow the drive disk assembly (22) to continue rotating so as to achieve operation without human intervention.

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