A rotary disconnector with a wiring structure

Abstract

The present invention belongs to the field of switch technology, and particularly relates to a rotary disconnector with a novel wiring structure, which includes a conductive system. The conductive system includes at least two groups of switch units arranged in sequence along a first direction. Each group of switch units includes a moving contact assembly and a static contact assembly. The rotation central axis of the moving contact assembly is arranged along the first direction. The static contact assembly has a wiring board, and the wiring boards of every two adjacent groups of switch units along the first direction are located on the same wiring layer. The present invention improves the wiring structure of a multi-pole rotary disconnector, enabling every two layers of switch units to share one wiring layer, which is convenient for users to wire and overhaul.

Description

Technical Field

[0001] The present invention belongs to the technical field of switches, and particularly relates to a rotary disconnector with a novel wiring structure. Background Art

[0002] With the acceleration of the industrialization and urbanization processes, the demand for electric power load has increased sharply, and the power grid structure has become increasingly complex. Traditional single-stage or low-pole-number rotary disconnectors are difficult to meet the distribution requirements of multiple circuits and large capacities. Existing multi-pole switches mainly achieve this by superimposing conductive systems. The number of layers of the wiring structure of the switch is the same as the number of superimposed layers of the conductive system, making the wiring inconvenient and not facilitating subsequent maintenance. Summary of the Invention

[0003] The purpose of the present invention is to overcome the disadvantages and deficiencies of the prior art, and provide a rotary disconnector with a novel wiring structure.

[0004] The technical solution adopted by the present invention is as follows: A rotary disconnector with a novel wiring structure includes a conductive system. The conductive system includes at least two groups of switch units arranged in sequence along a first direction. Each group of switch units includes a moving contact assembly and a static contact assembly. The rotation central axis of the moving contact assembly is arranged along the first direction. The static contact assembly has a wiring board, and the wiring boards of every two adjacent groups of switch units along the first direction are located on the same wiring layer.

[0005] The plane where the wiring board is located is positioned between the rotation planes of the two groups of moving contact assemblies.

[0006] The static contact assembly includes a static contact and a conductive plate. The static contact cooperates with the moving contact assembly for opening and closing. One end of the conductive plate is connected to the static contact and the other end is connected to the wiring board. The conductive plate has two bends, and the bending directions of the conductive plates of adjacent layers along the first direction are opposite, so that the angles of the ends located outside the switch unit cavity relative to the rotation central axis of the moving contact assembly are staggeredly arranged.

[0007] The conductive plate is arranged along the first direction. The plane where the wiring board is located is perpendicular to the first direction, and the conductive plate and the wiring board are bent and connected. The wiring boards of odd layers are connected to the lower end of the conductive plate, and the wiring boards of even layers are connected to the upper end of the conductive plate.

[0008] The switch units are evenly divided into a first switch unit and a second switch unit. The moving contact assemblies of the first switch unit and the second switch unit perform opening and closing actions by rotating around their respective axes as the central axes. The first switch unit and the second switch unit adjacent to each other along a second direction form a switch unit group located on one layer, and the planes where the wiring boards of the switch units located on the same layer are located are in the same plane.

[0009] The conductive system includes a switch housing assembly composed of switch housing units stacked and connected in a first direction. Two mutually separated switch unit cavities located on the same layer are formed between adjacent switch housing units, and a set of first switch units and a set of second switch units are respectively installed in the two switch unit cavities.

[0010] It further includes a transmission mechanism. The transmission mechanism includes an input gear, a first output gear with a central axis of [axis 1] and a second output gear with a central axis of [axis 2] respectively meshing and connected on both sides of the input gear. The first output gear and the second output gear are respectively in plug-in transmission cooperation with the moving contact assemblies of the first switch unit and the second switch unit located on the first layer, for applying a rotational force. The moving contact assemblies of two adjacent groups along the first direction are plugged into each other to sequentially transmit the rotational force.

[0011] It includes an operating mechanism. The operating mechanism, the transmission mechanism, and the conductive system are sequentially arranged in the first direction. The operating mechanism includes an input rotating shaft and an output rotating shaft. The input rotating shaft and the output rotating shaft are concentric with the input gear. The input rotating shaft is used to input a rotational driving force, and the output rotating shaft is in plug-in transmission cooperation with the input gear to output a rotational driving force.

[0012] The operating mechanism includes a first upper housing, a first lower housing, and an input turntable, an energy storage turntable, and an output turntable which are limited between the first upper housing and the first lower housing and are sequentially connected. The input turntable is circumferentially linked and connected with the input rotating shaft. Both ends of the energy storage turntable are connected with energy storage compression springs. When the input turntable rotates for closing and opening, it can rotate by a certain angle relative to the energy storage turntable and then form a linkage. During the process of the input turntable forming a linkage with the energy storage turntable, the energy storage compression springs store energy to the take-off point.

[0013] An energy storage torsion spring is provided between the energy storage turntable and the output turntable, and an elastic positioning member is provided between the output turntable and the first lower housing. When the operating mechanism is in the closing state and during the first part of the process of the energy storage turntable rotating from closing to opening, the elastic positioning member locks the output turntable so that it cannot rotate and the energy storage turntable can rotate relative to the output turntable to store energy in the energy storage torsion spring. During the second part of the process of the energy storage turntable rotating from closing to opening, the locking effect of the elastic positioning member on the output turntable is released, and the energy storage turntable and the output turntable form a linkage until the energy storage turntable rotates to the opening position, and the output turntable rotates to the opening position under the action of the energy storage torsion spring releasing energy.

[0014] The beneficial effects of the present invention are as follows: The present invention improves the wiring structure of a multi-pole rotary disconnector, enabling every two layers of switch units to share one wiring layer, which is convenient for users to wire and repair. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present invention.

[0016] Figure 1 Structural schematic diagram of an embodiment of the present invention;

[0017] Figure 2 Structural schematic diagram of an embodiment of the present invention with part of the housing hidden;

[0018] Figure 3 Front view of the operating mechanism of an embodiment of the present invention;

[0019] Figure 4 Exploded view of the operating mechanism of an embodiment of the present invention;

[0020] Figure 5 Structural schematic diagram of the input turntable of an embodiment of the present invention;

[0021] Figure 6 Structural schematic diagram of the energy storage turntable of an embodiment of the present invention at one angle;

[0022] Figure 7 Structural schematic diagram of the energy storage turntable of an embodiment of the present invention at another angle;

[0023] Figure 8 Structural schematic diagram of the cooperation between the input turntable and the energy storage turntable of an embodiment of the present invention;

[0024] Figure 9 Structural schematic diagram of the output turntable of an embodiment of the present invention;

[0025] Figure 10 Structural schematic diagram of the elastic positioning member of an embodiment of the present invention;

[0026] Figure 11 Structural schematic diagram of the cooperation between the transmission mechanism and the conductive system of an embodiment of the present invention;

[0027] Figure 12 Structural schematic diagram of the second layer part of the conductive system of an embodiment of the present invention;

[0028] Figure 13 Structural schematic diagram of the third layer part of the conductive system of an embodiment of the present invention;

[0029] Figure 14 Structural schematic diagram of the conductive member of the odd layers of the conductive system of an embodiment of the present invention;

[0030] Figure 15 Schematic structural diagram of the conductive member of the double-layer conductive system according to an embodiment of the present invention;

[0031] Figure 16 Schematic structural diagram of the cooperation of adjacent two-layer switch units according to an embodiment of the present invention;

[0032] In the figure,

[0033] 100 - Handle;

[0034] 200 - Operating mechanism; 210 - First upper housing; 220 - First lower housing; 230 - Input turntable; 231 - First sector-shaped rotating block; 232 - First mating groove; 240 - Energy storage turntable; 241 - First turntable body; 242 - Fitting ring; 243 - Central groove; 244 - First arc-shaped rotating block; 245 - Connecting rod; 246 - Compression spring connecting part; 247 - First limiting block; 248 - Unlocking block; 250 - Output turntable; 251 - Output rotating shaft; 252 - Second turntable body; 253 - One-way locking block; 2531 - First locking surface; 2532 - First guiding surface; 254 - Arc-shaped through groove; 255 - Second limiting block; 260 - Input rotating shaft; 270 - Energy storage torsion spring; 280 - Energy storage compression spring; 290 - Elastic positioning member; 291 - Elastic locking block; 292 - Second locking surface; 293 - Second guiding surface;

[0035] 300 - Transmission mechanism; 310 - Input gear; 320 - First output gear; 330 - Second output gear; 340 - Second upper housing;

[0036] 400 - Conductive system; 410 - Switch housing unit; 420 - Moving contact assembly; 430 - Static contact assembly; 431 - Static contact; 432 - Wiring member; 4321 - Conductive plate; 4322 - Wiring board; 440 - Arc extinguishing chamber. Detailed implementation manners

[0037] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] It should be noted that all the expressions using "first" and "second" in the embodiments of the present invention are used to distinguish two entities or parameters with the same name but different, so "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present invention. This will not be elaborated one by one in the subsequent embodiments.

[0039] The directional and positional terms mentioned in the present invention, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only with reference to the directions or positions in the attached drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding the present invention, rather than limiting the protection scope of the present invention.

[0040] A rotary disconnector, as Figure 1-2 shown, includes a handle 100, an operating mechanism 200, a transmission mechanism 300, and an electrical conduction system 400 that are sequentially connected in transmission along a first direction A.

[0041] The handle 100 is used to input the driving force for opening and closing the switch, and can be manually operated or connected to an electric driving mechanism to achieve electric operation.

[0042] As Figure 3 、 Figure 4 shown, the operating mechanism 200 includes a first upper housing 210, a first lower housing 220, and an input turntable 230, a energy storage turntable 240, and an output turntable 250 that are limited between the first upper housing 210 and the first lower housing 220 and are sequentially connected. The input turntable 230 is circumferentially linked and cooperatively connected with an input rotating shaft 260. An energy storage torsion spring 270 is provided between the energy storage turntable 240 and the output turntable 250. Energy storage compression springs 280 are connected to both ends of the energy storage turntable 240. The output turntable 250 is circumferentially linked and cooperatively connected with an output rotating shaft 251. An elastic positioning member 290 is provided between the output turntable 250 and the first lower housing 220. Among them, the input rotating shaft 260 passes through the first upper housing 210 for circumferentially linking and cooperatively connecting with the handle 100 to input the rotational driving force, and the output rotating shaft 251 passes through the first lower housing 220 for connecting with the transmission mechanism 300 to output the rotational driving force.

[0043] Among them, the structure of the input turntable 230 is as Figure 5 shown, and is provided with a first sector-shaped rotating block 231 and a first mating groove 232 with an angle of α + 2β; the structure of the energy storage turntable 240 is as Figure 6 、 Figure 7As shown, there is a first turntable body 241 and a mating ring 242. One side of the first turntable body 241 is provided with a central groove 243 and a first arc-shaped rotating block 244 with an angle of α located outside the central groove 243. The first turntable body 241 and the mating ring 242 are connected by a connecting rod 245. A compression spring connecting portion 246 protrudes from the outer periphery of the first turntable body 241, and a first limiting block 247 protrudes from the outer periphery of the mating ring 242. The first limiting block 247 is in limiting cooperation with the inner wall of the first upper housing 210 to form a limit for the on-off rotation position of the energy storage turntable 240; a unlocking block 248 protrudes from the lower end of the connecting rod 245; wherein, the mating ring 242 is adapted to the outer periphery of the first sector-shaped rotating block 231 and sleeved outside the first sector-shaped rotating block 231, as Figure 8 shown, the first arc-shaped rotating block 244 can rotate relatively by an angle of 2β in the first mating groove 232. The free end of the energy storage compression spring 280 is fixedly connected to the compression spring connecting portion 247 and the fixed end is fixedly connected to the first upper housing 210 and the first lower housing 220; the structure of the output turntable 250 is as Figure 9 shown, including a second turntable body 252. An output rotating shaft 251 protrudes from the center of one side surface of the second turntable body 252. A one-way locking block 253 protrudes near the outer periphery on the side of the second turntable body 252 where the output rotating shaft 251 is provided. A first locking surface 2531 is formed on one side of the one-way locking block 253 and a first guiding surface 2532 is formed on the other side. An arc-shaped through groove 254 is formed on the second turntable body 252. The unlocking block 248 of the energy storage turntable 240 cooperates with the arc-shaped through groove 254 so that when the energy storage turntable 240 rotates for closing, it rotates synchronously with the output turntable 250. When the energy storage turntable 240 rotates for opening, the unlocking block 248 can move to the other end in the arc-shaped through groove 254 so that the energy storage turntable 240 can rotate by a certain angle relative to the output turntable 250 to form a one-way linkage cooperation; a second limiting block 255 protrudes from the outer periphery of the second turntable body 252. The second limiting block 255 is in limiting cooperation with the inner wall of the first lower housing 220 to form a limit for the on-off rotation angle; the structure of the elastic positioning member 290 is as Figure 10As shown, there is an elastic locking block 291 with a protrusion. A second locking surface 292 and a second guiding surface 293 are formed on the elastic locking block 291. The unlocking block 248 of the energy storage turntable 240 passes through the arc-shaped through groove 254 so that the unlocking block 248 cooperates with the second guiding surface 293 of the elastic locking block 291. In the closing position, the second locking surface 292 and the first locking surface 2541 are in cooperation. When the energy storage turntable 240 rotates in the opening direction relative to the first upper housing 210 and the first lower housing 220 for a certain distance in the front part of the journey, the second locking surface 292 and the first locking surface 2541 cooperate to lock the output turntable 250 so that the output turntable 250 cannot rotate. When performing the closing rotation, the first guiding surface 2532 and the second guiding surface 293 cooperate to enable the output turntable 250 to rotate relative to the elastic positioning member 290.

[0044] When performing the closing operation, the input turntable 230 rotates by β, and then drives the energy storage turntable 240 and the output turntable 250 to rotate for a certain distance in the front part of the journey. The energy storage compression spring 280 stores energy. After reaching the take-off point, the second half of the opening and closing rotation is completed through energy release, realizing rapid closing.

[0045] When performing the opening operation, the input turntable 230 rotates by β, and then drives the energy storage turntable 240 to rotate for a certain distance in the front part of the journey. The energy storage compression spring 280 stores energy. At the same time, the output turntable 250 is locked by the elastic positioning member 290 and cannot rotate, so that the energy storage torsion spring 270 stores energy. After the energy storage compression spring 280 reaches the take-off point, it releases energy and drives the energy storage turntable 240 to complete the rotation of the second half of the journey. At the same time, when the connecting rod 245 moves to the other end of the arc-shaped through groove 254, the unlocking block 248 pushes the elastic locking block 291 until the second locking surface 292 and the first locking surface 2541 are disengaged. The output turntable 250 completes the rotation of the first part of the journey driven by the energy storage compression spring 280 and then completes the rotation of the second half driven by the energy storage torsion spring 270, achieving the opening effect that the energy storage turntable 240 moves first and the output turntable 250 moves later.

[0046] As Figure 11 shown, the transmission mechanism 300 includes a second upper housing 340, an input gear 310, a first output gear 320 with a central axis L1 and a second output gear 330 with a central axis L2 that are respectively meshed and connected on both sides of the input gear 310. The input gear 310 is coaxially inserted and matched with the output rotating shaft 251 to form a transmission, driving the first output gear 320 and the second output gear 330 to rotate synchronously.

[0047] The conductive system 400 is an eight-pole conductive system, including eight groups of switch units, arranged in a distribution of one layer with two poles and a total of four layers with eight poles. The one closer to the transmission mechanism 300 is denoted as the first layer, and the rest are sequentially denoted as the second layer, the third layer, and the fourth layer along the first direction A. Each group of switch units includes a moving contact assembly 420, a static contact assembly 430, and an arc extinguishing chamber 440. Specifically, the conductive system 400 includes a switch housing assembly composed of five switch housing units 410 stacked and connected along the first direction A, as Figure 12 , Figure 13 shown. Two mutually separated switch unit cavities located in the same layer are formed between adjacent switch housing units 410. A first switch unit and a second switch unit are respectively installed in the two switch unit cavities. Each group of switch units includes a moving contact assembly 420, a static contact assembly 430, and two groups of arc extinguishing chambers 440. The moving contact assemblies 420 of the first switch unit and the second switch unit perform opening and closing operations by rotating around the central axes of the axis L1 and the axis L2 respectively. One group of static contact assemblies 430 includes two static contacts 431 respectively arranged on the upper and lower sides of the moving contact assembly 420. The two groups of arc extinguishing chambers 440 are respectively arranged on the left and right sides of the moving contact assembly 420 for arc extinguishing. Among them, the two groups of moving contact assemblies 420 closer to the transmission mechanism 300 are respectively connected to the first output gear 320 and the second output gear 330 to apply a rotational force. The two groups of moving contact assemblies 420 adjacent to each other along the first direction A are inserted into each other to sequentially transmit the rotational force, so that the first output gear 320 and the second output gear 330 respectively drive multiple groups of moving contact assemblies 420 with the axis L1 as the central axis and multiple groups of moving contact assemblies 420 with the axis L2 as the central axis. And, due to the motion characteristics and arrangement of the gears, the rotation directions of the first output gear 320 and the second output gear 330 are the same. Therefore, the rotation directions and rotation angles of the moving contact assemblies 420 are exactly the same. It is also possible to change the transmission ratio of the gear combination to achieve the switching transmission of different rotation angles between the operating mechanism 200 and the conductive system 400.

[0048] In this embodiment, the static contact 431 is connected with a wiring member 432. The structures of the wiring members 432 connected to the static contacts 431 of adjacent layers are respectively as Figure 14 , Figure 15As shown in the figure, it includes a conductive plate 4321 and a wiring plate 4322. One end of the conductive plate 4321 extends into the switch unit cavity and is connected to the static contact 431, and the other end is located outside the switch unit cavity. The conductive plate 4321 is arranged along the first direction A and has two bends. The bending directions of the conductive plates 4321 connected to the static contacts 431 of adjacent layers along the first direction A are opposite, so that the angles of the ends located outside the switch unit cavity with respect to the rotation center axis of the moving contact assembly 420 are staggered, increasing the creepage distance. The wiring plate 4322 is connected to one end of the conductive plate 4321 located outside the switch unit cavity to form a wiring plate. The conductive plate 4321 and the wiring plate 4322 are bent and connected, and the wiring plate 4322 is perpendicular to the first direction A. As Figure 16 shown, the wiring plate 4322 of the odd-numbered layers is connected to the lower end of the conductive plate 4321, and the wiring plate 4322 of the even-numbered layers is connected to the upper end of the conductive plate 4321, so that the wiring plates 4322 of the first and second layers are at the same height or close to the same height, and the wiring plates 4322 of the third and fourth layers are at the same height or close to the same height. Thus, the arrangement of the wiring structure of the overall four-layer and eight-pole structure becomes approximately the arrangement of two layers and four poles, and the positive and negative poles can be wired on the same layer for every two layers, facilitating the user to wire.

[0049] The load isolation multi-pole switch of this embodiment is a modular assembly structure, that is, the transmission mechanism 300 and the conductive system 400 are connected to form an independent module. The second upper housing 340 is connected to one end of the switch housing assembly to form a transmission cavity for limiting the transmission mechanism 300. A through hole corresponding to the input gear 310 is provided on the second upper housing 340 for the output rotating shaft 351 to be inserted for transmission. The operating mechanism 200 forms an independent module. The two modules are fixed by threaded fasteners. The two ends of the input rotating shaft 260 are respectively inserted and matched with the handle 100 and the operating mechanism 200 to form synchronous rotation.

[0050] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A rotary disconnector with a wiring structure, comprising a conductive system (400), the conductive system (400) comprising at least two groups of switch units arranged in sequence along a first direction (A), each group of switch units comprising a moving contact assembly (420) and a stationary contact assembly (430), the rotation center axis of the moving contact assembly (420) being arranged along the first direction (A), the stationary contact assembly (430) having a wiring board (4322), characterized in that: The wiring boards (4322) of every two groups of switch units adjacent to each other along a first direction (A) are located in the same wiring layer; the plane where the wiring boards (4322) are located is located between the rotation planes of the two groups of moving contact assemblies (420); the stationary contact assembly (430) comprises a stationary contact (431) and a conductive plate (4321); the stationary contact (431) cooperates with the moving contact assembly (420) for opening and closing the switch; one end of the conductive plate (4321) is connected to the stationary contact (431) and the other end is connected to the wiring board (4322); the conductive plate (4321) has two bends; the bending directions of the conductive plates (4321) of adjacent layers along the first direction (A) are opposite, so that the angle of one end located outside the switch unit cavity relative to the rotation center axis of the moving contact assembly (420) is staggered; The conductive plate (4321) is arranged along a first direction (A), the plane where the wiring board (4322) is located is perpendicular to the first direction (A), and the conductive plate (4321) and the wiring board (4322) are connected by bending, the wiring boards (4322) of odd layers are connected to the lower end of the conductive plate (4321), and the wiring boards (4322) of even layers are connected to the upper end of the conductive plate (4321).

2. The rotary disconnector with a wiring structure according to claim 1, characterized in that: The switch units are divided into a first switch unit and a second switch unit. The moving contact assemblies (420) of the first switch unit and the second switch unit respectively rotate with the axis L1 and the axis L2 as the central axis to perform opening and closing actions. The first switch unit and the second switch unit adjacent to each other along the second direction constitute a switch unit group located on the same layer. The planes where the wiring boards (4322) of the switch units located on the same layer are located are located on the same plane.

3. The rotary disconnector with a wiring structure according to claim 2, characterized in that: The conductive system (400) comprises a switch housing assembly consisting of switch housing units (410) stacked and connected in a first direction (A), two switch unit cavities separated from each other and located in the same layer are formed between adjacent switch housing units (410), and a group of first switch units and a group of second switch units are respectively installed in the two switch unit cavities.

4. The rotary disconnector with a wiring structure according to claim 2, characterized in that: The invention also comprises a transmission mechanism (300), the transmission mechanism (300) comprising an input gear (310) and a first output gear (320) with a central axis L1 and a second output gear (330) with a central axis L2, which are respectively meshed and connected to both sides of the input gear (310); the first output gear (320) and the second output gear (330) are respectively plugged and driven with the moving contact assemblies (420) of the first switch unit and the second switch unit located on the first layer, so as to apply a rotational force; two sets of moving contact assemblies (420) adjacent to each other along the first direction (A) are plugged into each other to sequentially transmit the rotational force.

5. The rotary disconnector with a wiring structure according to claim 4, characterized in that: The invention comprises an operating mechanism (200), wherein the operating mechanism (200), a transmission mechanism (300), and a conductive system (400) are arranged in sequence along a first direction (A); the operating mechanism (200) comprises an input rotating shaft (260) and an output rotating shaft (251); the input rotating shaft (260), the output rotating shaft (251), and an input gear (310) are arranged concentrically; the input rotating shaft (260) is used to input a rotational driving force; and the output rotating shaft (251) and the input gear (310) are plug-connected and transmission-matched to output a rotational driving force.

6. The rotary disconnector with a wiring structure according to claim 5, characterized in that: The operating mechanism (200) comprises a first upper housing (210), a first lower housing (220), and an input rotary disc (230), an energy storage rotary disc (240), and an output rotary disc (250) which are limited between the first upper housing (210) and the first lower housing (220) and are connected in sequence; the input rotary disc (230) is circumferentially linked and connected to an input rotating shaft (260); both ends of the energy storage rotary disc (240) are connected to energy storage compression springs (280); when the input rotary disc (230) is opened or closed, it can be rotated relative to the energy storage rotary disc (240) at a certain angle before forming a linkage; and in the process of forming a linkage between the input rotary disc (230) and the energy storage rotary disc (240), the energy storage compression spring (280) stores energy to a starting point.

7. The rotary disconnector with a wiring structure according to claim 6, characterized in that: An energy storage torsion spring (270) is provided between the energy storage rotary disk (240) and the output rotary disk (250), and an elastic positioning member (290) is provided between the output rotary disk (250) and the first lower housing (220). When the operating mechanism (200) is in a closed state and the energy storage rotary disk (240) rotates from closed to open in the front part, the elastic positioning member (290) locks the output rotary disk (250) so that it cannot rotate, and the energy storage rotary disk (240) can be relatively The output rotary disc (250) is rotated to store energy in the energy storage torsion spring (270); during the latter part of the process in which the energy storage rotary disc (240) rotates from closing to opening, the locking effect of the elastic positioning member (290) on the output rotary disc (250) is released and the energy storage rotary disc (240) and the output rotary disc (250) are linked to each other until the energy storage rotary disc (240) rotates to the opening position; and the output rotary disc (250) rotates to the opening position under the energy release effect of the energy storage torsion spring (270).

Images