Bottom portion connection structure, frame structure, and manual operation mechanism

Abstract

Disclosed are a bottom portion connection structure, and a manual operation mechanism provided with the bottom portion connection structure, belonging to the technical field of switch devices. The bottom portion connection structure comprises a base, a first connection assembly and a second connection assembly, and a circuit breaker is connected between a first bottom portion connection plate and a second bottom portion connection plate of the base. A first adjustment rod of the first connection assembly and a second adjustment rod of the second connection assembly are respectively rotatably arranged on the first bottom portion connection plate and the second bottom portion connection plate, and can be adjusted along a second direction, so that a first insertion piece and a second insertion piece can be respectively inserted into insertion holes on two sides of the circuit breaker.

Description

Bottom connection structure, frame structure and manual operating mechanism

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 26, 2023 with application number 202311808899.5 and the Chinese patent application filed with the China Patent Office on December 26, 2023 with application number 202311808897.6. The entire contents of the above applications are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of switch electrical appliances, for example, to a bottom connection structure, a frame structure and a manual operating mechanism. Background Art

[0003] The manual operating mechanism is one of the common accessories of the circuit breaker. It is mainly set to remotely operate the box. The handle of the manual operating mechanism is set on the cabinet door of the box, and the circuit breaker is set inside the box. By rotating the handle to the corresponding position, the circuit breaker in the box can be opened and closed, which not only protects the safety of people and electrical equipment, but also makes the control of the circuit breaker more convenient to a certain extent.

[0004] The circuit breaker is arranged in the box and fixed on the bottom connecting structure of the manual operating mechanism. The bottom connecting structure in the related art is not flexible in matching with the circuit breaker, and cannot be well matched with circuit breakers with different pole numbers, and has low practicality.

[0005] The circuit breaker of the related art does not reserve a handle for connecting the manual operating mechanism in two different directions, and cannot be operated in the forward or sideways direction according to customer needs.

[0006] Summary of the Invention

[0007] The present application provides a bottom connection structure, a frame structure and a manual operating mechanism, which can be connected to circuit breakers with different numbers of poles, improve adaptability, and operate the circuit breaker in the forward or side direction according to customer needs.

[0008] The present application provides a bottom connection structure capable of connecting to circuit breakers with different pole numbers, the bottom connection structure comprising:

[0009] The base comprises a first bottom connecting plate and a second bottom connecting plate spaced apart along a first direction, wherein the circuit breaker is sandwiched between the first bottom connecting plate and the second bottom connecting plate;

[0010] a first connecting assembly comprising a first adjusting rod and a first plug-in component, wherein a first end of the first adjusting rod is rotatably connected to the first bottom connecting plate and is movable in a second direction, and the first plug-in component is disposed at a second end of the first adjusting rod and is capable of passing through the first bottom connecting plate and being plugged into a plug-in hole on a first side of the circuit breaker;

[0011] The second connecting assembly includes a second adjusting rod and a second connector. The first end of the second adjusting rod is rotatably connected to the second bottom connecting plate and moves along the second direction. The second connector is provided at the second end of the second adjusting rod and can pass through the second bottom connecting plate and be inserted into the connector hole on the second side of the circuit breaker.

[0012] The present application also provides a manual operating mechanism, comprising the bottom connecting structure, frame structure and universal connecting structure described in the above scheme, wherein the bottom connecting structure is configured to connect a circuit breaker, the frame structure is arranged on the bottom connecting structure, and the universal connecting structure is arranged on the frame structure. Rotating the universal connecting structure can cause the frame structure to move to realize the opening and closing of the circuit breaker.

[0013] This application also provides a framework structure, including:

[0014] The frame body includes a main support plate, a first connecting plate and a second connecting plate, wherein the first connecting plate is arranged parallel to the main support plate, the second connecting plate is arranged to be connected to the main support plate at an angle, and the first connecting plate and the second connecting plate can both be connected to a universal connection structure;

[0015] The slide plate is slidably arranged on the main support plate along a first direction. The slide plate is connected to the universal connection structure. Rotating the universal connection structure can drive the slide plate to slide along the first direction to open and close the circuit breaker.

[0016] The present application also provides a manual operating mechanism, including a bottom connecting structure, the frame structure described in the above scheme and a universal connecting structure. The bottom connecting structure is configured to connect a circuit breaker, the frame structure is arranged on the bottom connecting structure, and the universal connecting structure is arranged on the frame structure. Rotating the universal connecting structure can cause the frame structure to move to realize the opening and closing of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a structural diagram of the connection between the manual operating mechanism and the circuit breaker provided in Example 1 of the present application;

[0018] FIG2 is a structural diagram of a manual operating mechanism provided in Example 1 of the present application;

[0019] FIG3 is a second structural diagram of the manual operating mechanism provided in Example 1 of the present application;

[0020] FIG4 is a schematic structural diagram of a base involved in Example 1 of the present application;

[0021] FIG5 is a third structural diagram of the manual operating mechanism provided in Example 1 of the present application;

[0022] FIG6 is an enlarged view of the structure at point A in FIG5 ;

[0023] FIG7 is a schematic structural diagram of the frame body involved in Example 1 of the present application;

[0024] FIG8 is a structural diagram of a manual operating mechanism provided in accordance with an embodiment of the present application without a bottom connection structure;

[0025] FIG9 is a schematic structural diagram of a swing frame according to a first embodiment of the present application;

[0026] FIG10 is a schematic diagram of a universal connection structure according to a first embodiment of the present application;

[0027] FIG11 is a structural diagram of the manual operating mechanism provided in Example 2 of the present application without the bottom connection structure;

[0028] FIG12 is a schematic structural diagram of the connection between the first rotating frame and the first rotating shaft involved in the second embodiment of the present application;

[0029] FIG13 is a schematic structural diagram of the connection between the second rotating frame and the second rotating shaft involved in the second embodiment of the present application;

[0030] 14 is a structural diagram of the manual operating mechanism provided in Example 2 of the present application without the frame structure and the bottom connection structure;

[0031] In the picture:

[0032] 1. Bottom connecting structure; 11. Base; 111. First bottom connecting plate; 1111. First long slotted hole; 1112. First communicating hole; 112. Second bottom connecting plate; 1121. Second communicating hole; 113. Horizontal connecting plate; 12. First connecting assembly; 121. First adjusting rod; 122. First plug-in component; 1221. First plug-in rod; 1222. First fixing column; 123. First connecting pin; 124. First retaining ring; 125. Pressing member; 126. Third connecting pin; 127. Second retaining ring; 13. Second connecting assembly; 131. Second adjusting rod; 1311. Second long slotted hole; 132. Second plug-in component; 1321. Second plug-in rod; 1322. Second fixing column; 133. Second connecting pin; 134. Third retaining ring; 135. First spring; 136. Pressing plate;

[0033] 2. Frame structure; 21. Frame body; 211. Main support plate; 2111. Track groove; 2112. Mounting hole; 2113. First rotation hole; 2114. Second rotation hole; 212. First connecting plate; 213. Second connecting plate; 214. Side plate; 22. Slide plate; 221. First protrusion; 222. Second protrusion; 223. Fourth connecting pin; 23. Toggle assembly; 231. Translation plate; 232. Toggle plate; 24. Swing frame; 241. First swing plate; 242. Second swing plate; 2421. U-shaped groove; 243. Swing connecting plate;

[0034] 3. Universal connection structure; 31. Coupling sleeve; 311. Universal hole; 312. Rotating shaft hole; 313. Through hole; 3131. Lower connecting hole; 3132. Upper avoidance hole; 314. Second fastening hole; 315. Second fastener; 32. First rotating shaft; 321. First connecting portion; 322. Rotation limiting plate; 33. First fastener; 34. Elastic member; 35. Second rotating shaft;

[0035] 4. Energy storage structure; 41. Energy storage frame; 42. Energy storage assembly; 421. First rotating frame; 4211. First extension protrusion; 4212. Rectangular hole; 4213. First extension arm; 4214. Second extension arm; 422. Second rotating frame; 4221. Second extension protrusion; 4222. Third extension arm; 4223. Fourth extension arm; 4224. First end of second extension protrusion; 4225. Second end of second extension protrusion; 423. Energy storage member; 424. Sleeve; 425. Washer; 426. First torsion arm; 427. Second torsion arm;

[0036] 100. Circuit breaker; 101. Single circuit breaker. DETAILED DESCRIPTION

[0037] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to a fixed connection or a detachable connection, a mechanical connection or an electrical connection, a direct connection or an indirect connection through an intermediate medium, and may refer to internal communication between two elements or an interaction between two elements. A person of ordinary skill in the art will be able to understand the meaning of the above terms in this application according to the circumstances.

[0038] In the description of this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] The technical solution of this application is explained below with reference to the accompanying drawings and through specific implementation methods.

[0040] Example 1

[0041] As shown in Figures 1-3, an embodiment of the present application provides a manual operating mechanism, which is arranged in a box. The manual operating mechanism includes a bottom connecting structure 1, a frame structure 2, and a universal connecting structure 3. The bottom connecting structure 1 is configured to connect to a circuit breaker 100, the frame structure 2 is arranged on the bottom connecting structure 1, and the universal connecting structure 3 is arranged on the frame structure 2. Rotating the universal connecting structure 3 can cause the frame structure 2 to operate to achieve the opening and closing of the circuit breaker 100. Among them, the bottom connecting structure 1 can be connected to circuit breakers 100 with different numbers of poles. The bottom connecting structure 1 includes a base 11, which includes a transverse connecting plate 113 and a first bottom connecting plate 111 and a second bottom connecting plate 112 connected to the transverse connecting plate 113 along a first direction. The circuit breaker 100 is connected between the first bottom connecting plate 111 and the second bottom connecting plate 112. The frame structure 2 includes a frame body 21, which is fixedly connected to the horizontal connecting plate 113 to connect the frame structure 2 to the bottom connecting structure 1. The frame structure 2 can realize the universal connection structure 3 to connect to the frame structure 2 from two directions to meet user needs. The universal connection structure 3 is connected to the rotating shaft of the manual operating mechanism (not shown in the figure), and the rotating shaft is connected to the handle of the manual operating mechanism (not shown in the figure). The handle of the manual operating mechanism is set on the cabinet door of the box. By rotating the handle on the cabinet door, the circuit breaker 100 (in this embodiment, multiple single circuit breakers 101 are connected to form a multi-pole circuit breaker, and a single circuit breaker 101 is a single-pole circuit breaker) can be opened and closed.

[0042] A bottom connection structure 1 provided in an embodiment of the present application is described below with reference to FIG. 2 to FIG. 6 .

[0043] The bottom connection structure 1 includes a base 11, a first connection assembly 12, and a second connection assembly 13. The base 11 includes a first bottom connection plate 111 and a second bottom connection plate 112 spaced apart along a first direction. The base 11 includes a transverse connection plate 113 and first and second bottom connection plates 111 and 112 spaced apart from the transverse connection plate 113 along the first direction. The first and second bottom connection plates 111 and 112 are parallel to each other, and the circuit breaker 100 is sandwiched between the first and second bottom connection plates 111 and 112. The first connection assembly 12 includes a first adjustment rod 121 and a first connector 122. The first end of the first adjustment rod 121 is rotatably connected to the first bottom connection plate 111 and can be moved and adjusted along a second direction. The first connector 122 is rotatably disposed at the second end of the first adjustment rod 121 and is inserted into the connector hole on the first side of the circuit breaker 100 through the first bottom connection plate 111. The second connecting assembly 13 includes a second adjusting rod 131 and a second plug-in connector 132. The first end of the second adjusting rod 131 is rotatably connected to the second bottom connecting plate 112 and can be moved and adjusted along the second direction. The second plug-in connector 132 is rotatably set at the second end of the second adjusting rod 131 and is inserted into the plug hole on the second side of the circuit breaker 100 through the second bottom connecting plate 112.

[0044] Each single circuit breaker 101 is provided with a half-set plug-in hole at both ends along the third direction. When multiple single circuit breakers 101 are connected to each other, the half-set plug-in holes on two adjacent single circuit breakers 101 are interlocked with each other to form a complete plug-in hole, and the first plug-in component 122 and the second plug-in component 132 can both be plugged into the half-set plug-in hole or the complete plug-in hole.

[0045] In this embodiment, the first direction is the swing direction of the switch handle of the circuit breaker 100, the second direction is the height direction of the single circuit breaker 101, and the third direction is the superposition direction of multiple single circuit breakers 101, and the first direction, the second direction and the third direction are perpendicular to each other.

[0046] The first bottom connecting plate 111 is provided with five first connecting holes 1112 at intervals along the third direction, and the second bottom connecting plate 112 is provided with five second connecting holes 1121 at intervals along the third direction. By respectively providing five first connecting holes 1112 and five second connecting holes 1121, they can correspond to the plug-in holes of the circuit breaker 100 with different pole numbers, so as to facilitate the first plug-in connector 122 and the second plug-in connector 132 to be plugged into the plug-in holes after passing through the first connecting holes 1112 and the second connecting holes 1121 respectively.

[0047] The first adjusting rod 121 and the second adjusting rod 131 can be adjusted on the first bottom connecting plate 111 and the second bottom connecting plate 112 respectively, so that the first connector 122 can be accurately connected to the plug hole through any first connecting hole 1112, and the second connector 132 can be accurately connected to the plug hole through any second connecting hole 1121.

[0048] The first adjusting rod 121 and the second adjusting rod 131 are rotatably disposed on the first bottom connecting plate 111 and the second bottom connecting plate 112, respectively. The first adjusting rod 121 and the second adjusting rod 131 can be moved and adjusted along the second direction relative to the first bottom connecting plate 111 and the second bottom connecting plate 112, respectively, so that the first adjusting rod 121 and the second adjusting rod 131 can respectively drive the first plug-in connector 122 and the second plug-in connector 132 to be plugged into the plug-in holes of the multi-stage circuit breaker 100 with different pole numbers, thereby achieving matching connection with circuit breakers 100 with different pole numbers, flexible and convenient installation, and greatly improving practicality.

[0049] Since the switch handle of the circuit breaker 100 is arranged along the first direction toward the first bottom connecting plate 111 , in order to avoid the switch handle of the circuit breaker 100 , the first bottom connecting plate 111 is arranged as a bent structure.

[0050] Exemplarily, referring to Figure 4 and combined with Figure 2, a first long slot hole 1111 extending along the second direction is provided on the first bottom connecting plate 111, the first adjusting rod 121 is provided with a bending structure, and the first end of the first adjusting rod 121 is connected to the first long slot hole 1111 through a first connecting pin 123, the first connecting pin 123 is provided in the first long slot hole 1111, and the first connecting pin 123 can be rotated relative to the first long slot hole 1111 and moved and adjusted along the second direction, the first end of the first adjusting rod 121 is connected to the first connecting pin 123, that is, the first adjusting rod 121 is rotatably connected to the first bottom connecting plate 111 and can be moved and adjusted along the second direction.

[0051] The first connecting pin 123 passes through the first long slot 1111 and the first adjusting rod 121 at the same time and is limited by the first retaining ring 124. The first bottom connecting plate 111 and the first adjusting rod 121 are arranged between the pin cap of the first connecting pin 123 and the first retaining ring 124, and the distance between the pin cap of the first connecting pin 123 and the first retaining ring 124 is greater than the sum of the thicknesses of the first bottom connecting plate 111 and the first adjusting rod 121, so that the first adjusting rod 121 can be moved and adjusted along the first direction, so as to drive the first connector 122 to be inserted into or removed from the plug hole along the first direction.

[0052] In order to prevent the first connector 122 from being easily removed after being inserted into the insertion hole, the first connecting assembly 12 further includes a pressing member 125. The pressing member 125 is rotatably disposed on the first bottom connecting plate 111 and is configured to press the first adjustment rod 121 against the first bottom connecting plate 111. The pressing member 125 is rotatably disposed on the first bottom connecting plate 111 via a third connecting pin 126. When the first connector 122 is inserted into the insertion hole, the pressing member 125 can be rotated toward the first adjustment rod 121 and pressed against the first adjustment rod 121 to limit the first adjustment rod 121 and prevent it from being displaced in the first direction. When the first connector 122 needs to be removed, the pressing member 125 can be rotated to disengage from the first adjustment rod 121.

[0053] For example, referring to Figure 6, two second retaining rings 127 are provided on the third connecting pin 126, the second retaining ring 127 is fixed on the third connecting pin 126, and the first bottom connecting plate 111 is clamped between the pin cap of the third connecting pin 126 and a second retaining ring 127 to prevent the third connecting pin 126 from moving along the first direction; the clamping piece 125 is located between the two second retaining rings 127 so that the clamping piece 125 is rotatably connected to the third connecting pin 126.

[0054] Exemplarily, the pressing member 125 is a spring sheet, which elastically presses against the first adjusting rod 121 , resulting in a more reasonable structural design and more convenient use.

[0055] Referring to Figure 3, the second adjusting rod 131 is provided with a second long slot hole 1311 extending along the second direction, and the second bottom connecting plate 112 is provided with a second connecting pin 133 connected to the second long slot hole 1311. The second connecting pin 133 is provided on the second bottom connecting plate 112 and passes through the second long slot hole 1311. The second adjusting rod 131 can be rotatably connected with the second connecting pin 133 through the second long slot hole 1311, and the second adjusting rod 131 can be moved and adjusted along the second direction.

[0056] The second connecting pin 133 simultaneously passes through the second bottom connecting plate 112 and the second long slot 1311 and is limited by the third retaining ring 134. The second bottom connecting plate 112 and the second adjusting rod 131 are arranged between the pin cap of the second connecting pin 133 and the third retaining ring 134, and the distance between the pin cap of the second connecting pin 133 and the third retaining ring 134 is greater than the sum of the thicknesses of the second bottom connecting plate 112 and the second adjusting rod 131, so that the second adjusting rod 131 can be moved and adjusted along the first direction, so that the second connector 132 can be inserted into or removed from the plug hole.

[0057] Exemplarily, the second connecting assembly 13 also includes a first spring 135, which is sleeved on the second connecting pin 133 and elastically clamped between the pin cap of the second connecting pin 133 and the second bottom connecting plate 112. The first spring 135 can provide the third retaining ring 134 with a force to press the second adjusting rod 131. When the force of the first spring 135 is overcome, the second connector 132 can be pulled out of the plug hole.

[0058] In one or more embodiments, two first adjustment rods 121 are provided, the two first adjustment rods 121 are arranged at intervals along the third direction, and each first adjustment rod 121 is provided with a first plug-in connector 122; two second adjustment rods 131 are provided, the two second adjustment rods 131 are arranged at intervals along the third direction, and each second adjustment rod 131 is provided with a second plug-in connector 132.

[0059] In this embodiment, the first adjustment rod 121 and the first connector 122 can correspond one to one and two are provided, and the two first adjustment rods 121 and the two first connectors 122 are arranged at intervals along the third direction; the second adjustment rod 131 and the second connector 132 correspond one to one and two are provided, and the two second adjustment rods 131 and the two second connectors 132 are arranged at intervals along the third direction.

[0060] The second connecting assembly 13 also includes a pressure plate 136, which is arranged on the second bottom connecting plate 112, and the second connecting pin 133 passes through the pressure plate 136, and the pressure plate 136 is movable along the first direction, and the pressure plate 136 is located between the third retaining ring 134 and the second adjusting rod 131, and by pulling the pressure plate 136, the second connecting pin 133 can be driven to overcome the elastic force of the first spring 135, which makes the operation more convenient; exemplarily, when the second adjusting rod 131 is set to two, the first end of the pressure plate 136 along the third direction is clamped between a third retaining ring 134 and a second adjusting rod 131, and the second end of the pressure plate 136 along the third direction is clamped between another third retaining ring 134 and another second adjusting rod 131, so that when the pressure plate 136 is pulled, the two second connecting pins 133 can be driven at the same time to overcome the elastic forces of the two first springs 135 respectively, and the structural design is more reasonable.

[0061] Optionally, referring to Figure 5, the first connector 122 includes a first connector rod 1221 and a first fixed column 1222 that are plugged into and fixed to each other, the first adjusting rod 121 is rotatably sleeved on the first connector rod 1221, the first adjusting rod 121 is rotatably set between the first connector rod 1221 and the first fixed column 1222, and the first connector rod 1221 can be plugged into the plug hole; the second connector 132 includes a second connector rod 1321 and a second fixed column 1322 that are plugged into and fixed to each other, the second adjusting rod 131 is rotatably sleeved on the second connector rod 1321, the second adjusting rod 131 is rotatably set between the second connector rod 1321 and the second fixed column 1322, and the second connector rod 1321 can be plugged into the plug hole.

[0062] The frame structure 2 is described below with reference to Figures 7 to 9 .

[0063] The frame structure 2 includes a frame body 21 and a slide 22. The frame body 21 includes a main support plate 211, a first connecting plate 212, and a second connecting plate 213. The main support plate 211 is fixedly connected to the transverse connecting plate 113. The first connecting plate 212 is arranged parallel to the main support plate 211, and the second connecting plate 213 is arranged at an angle to the main support plate 211. For example, the second connecting plate 213 is arranged perpendicular to the main support plate 211. Universal connection structures 3 can be provided on both the first and second connecting plates 212, 213 to enable movement control of the slide 22 from two different directions via the universal connection structures 3. The slide 22 is slidably disposed on the main support plate 211 along a first direction. The slide 22 is connected to the universal connection structure 3. Rotating the universal connection structure 3 can drive the slide 22 to slide along the first direction, thereby achieving opening and closing of the circuit breaker 100. Exemplarily, the frame structure 2 also includes a swing frame 24, which is fixedly connected to the universal connection structure 3, and the swing frame 24 can be fixedly connected to the first rotating shaft 32 of the universal connection structure 3. The universal connection structure 3 drives the skateboard 22 to slide through the swing frame 24. The skateboard 22 is respectively provided with a first protrusion 221 and a second protrusion 222 on one side facing the first connecting plate 212 and the side facing the second connecting plate 213. The end of the skateboard 22 facing the first connecting plate 212 is provided with a first protrusion 221 movably connected to the swing frame 24, and the side of the skateboard 22 facing the second connecting plate 213 is provided with a second protrusion 222 movably connected to the swing frame 24.

[0064] Rotating the handle of the manual operating mechanism drives the universal connection structure 3 to rotate. When the universal connection structure 3 is mounted on the first connecting plate 212, the universal connection structure 3 drives the slide 22 to move in the first direction via the first protrusion 221. When the universal connection structure 3 is mounted on the second connecting plate 213, the universal connection structure 3 drives the slide 22 to move in the first direction via the second protrusion 222. As the slide 22 moves, it drives the switch handle of the circuit breaker 100 in a coordinated manner, thereby switching the circuit breaker 100 on and off.

[0065] The frame structure 2 can be operated in both the forward and lateral directions by setting a universal connection structure 3 on the first connection plate 212 and the second connection plate 213, and the first connection plate 212 and the second connection plate 213 are perpendicular to each other and correspond to two directions respectively, thereby improving practicality by making the frame structure 2 operable in both the forward and lateral directions.

[0066] The frame body 21 further includes a side plate 214 . The side plate 214 is vertically arranged on the main support plate 211 . The first connecting plate 212 is vertically connected to the side plate 214 , and the side plate 214 is parallel to the second connecting plate 213 .

[0067] Exemplarily, referring to Figure 8, the frame structure 2 also includes a toggle assembly 23, which is fixedly connected to the slide 22 and linked to the switch handle of the circuit breaker 100. The slide 22 is linked to the toggle assembly 23, that is, the toggle assembly 23 includes a translation plate 231 and two toggle plates 232 vertically arranged on the translation plate 231. When the translation plate 231 is fixedly connected to the slide 22, the switch handle of the circuit breaker 100 is limited between the two toggle plates 232, so that the slide 22 can drive the two toggle plates 232 to move simultaneously through the translation plate 231 when sliding, and then the switch handle is toggled to realize the opening and closing of the circuit breaker 100.

[0068] Referring again to Figure 7 , the main support plate 211 has track grooves 2111 on both sides along the first direction. Both ends of the slide plate 22 are connected to the toggle assembly 23 via fourth connecting pins 223. The two fourth connecting pins 223 are slidably disposed within the track grooves 2111 on either side. The main support plate 211 has track grooves 2111 on both sides along the first direction. Both ends of the slide plate 22 are connected to the two ends of the translation plate 231 of the toggle assembly 23 via fourth connecting pins 223. The fourth connecting pins 223 are slidably disposed within the track grooves 2111 on either side, thereby connecting the translation plate 231 to the slide plate 22. It will be understood that the transverse connecting plate 113 of the base 11 has clearance grooves at positions corresponding to the track grooves 2111 to prevent interference between the fourth connecting pins 223 and the transverse connecting plate 113.

[0069] The main support plate 211 is also provided with two groups of mounting holes 2112 for connecting to the base 11 of the bottom connecting structure 1. The two track grooves 2111 and the two groups of mounting holes 2112 are symmetrically arranged with the center line of the frame body 21 along the first direction as the reference, and the mounting holes 2112 on both sides of the center line of the track groove 2111 in each group of mounting holes 2112 are symmetrically arranged with the center line of the track groove 2111 as the reference.

[0070] The main support plate 211 is also provided with two sets of mounting holes 2112 for connection to the transverse connecting plate 113. The two sets of mounting holes 2112 are spaced apart along the first direction. The two track grooves 2111 are symmetrically arranged about the centerline of the frame body 21 along the first direction. The two sets of mounting holes 2112 are symmetrically arranged about the centerline of the frame body 21 along the first direction. In each set of mounting holes 2112, the mounting holes 2112 located on either side of the centerline of the track groove 2111 are symmetrically arranged about the centerline of the track groove 2111. This structure allows the frame body 21 to be rotated 180° on the transverse connecting plate 113 for installation, thereby changing the orientation of the second connecting plate 213, thus achieving lateral operation.

[0071] In this embodiment, four mounting holes 2112 are provided.

[0072] The main support plate 211 and the transverse connecting plate 113 can be connected by riveting, which is easy to operate and has a firm connection. The rivets can pass through the mounting holes 2112 and are riveted to the transverse connecting plate 113.

[0073] The main support plate 211 is provided with a first rotating hole 2113 rotatably connected to the universal connecting structure 3, and a bending plate is provided on the side of the first connecting plate 212 facing the second connecting plate 213. The bending plate is arranged parallel to the second connecting plate 213, and the bending plate is provided with a second rotating hole 2114 rotatably connected to the universal connecting structure 3. The universal connecting structure 3 is provided with a first rotating shaft 32, and the first rotating shaft 32 is provided with a rotating column. The rotating column can be rotatably connected to the first rotating hole 2113 and the second rotating hole 2114 respectively, and the structure is more stable.

[0074] The first connecting plate 212 and the second connecting plate 213 are both provided with connecting holes, and the first rotating shaft 32 is rotatably disposed in the connecting holes.

[0075] As shown in Figures 8-9, the swing frame 24 is fixedly connected to the first rotating shaft 32, and the swing frame 24 is provided with a U-shaped groove 2421, which can be movably connected to the first protrusion 221 and the second protrusion 222 respectively to realize the universal connection structure 3 driving the skateboard 22 to move.

[0076] The swing frame 24 includes a first swing plate 241, a second swing plate 242 and a swing connecting plate 243 connected between the first swing plate 241 and the second swing plate 242. When the first rotating shaft 32 is set in the connecting hole, the rotation limit plate 322 set at the upper end of the first rotating shaft 32 abuts one side of the first connecting plate 212 or the second connecting plate 213. The first swing plate 241 is sleeved on the first rotating shaft 32 and abuts the other side of the first connecting plate 212 or the second connecting plate 213. The fourth retaining ring is clamped on the first rotating shaft 32 to limit the first swing plate 241. The second swing plate 242 is sleeved on the first rotating shaft 32 and clamped and fixed to enable the first rotating shaft 32 to drive the second swing plate 242 to swing. The second swing plate 242 is provided with a U-shaped groove 2421.

[0077] The universal connection structure 3 will be described below with reference to FIG8 and FIG10 .

[0078] The universal connection structure 3 includes a coupling sleeve 31, a first rotating shaft 32, and a first fastener 33. The coupling sleeve 31 has a universal hole 311 at its first end and a shaft hole 312 at its second end that is connected to the shaft of the manual operating mechanism. One end of the shaft is disposed in the shaft hole 312, and the other end of the shaft is connected to the handle of the manual operating mechanism. By rotating the handle of the manual operating mechanism, the shaft can be driven to rotate, thereby driving the coupling sleeve 31 to rotate. The first rotating shaft 32 has a first connecting portion 321 disposed in the universal hole 311. The coupling sleeve 31 and the first rotating shaft 32 can be linked to each other so that the coupling sleeve 31 can drive the first rotating shaft 32 to rotate when the coupling sleeve 31 rotates. The first connecting portion 321 can move in the axial and radial directions of the universal hole 311 within the universal hole 311, so that the coupling sleeve 31 can swing in a universal direction relative to the first rotating shaft 32. This allows the shaft to remain connected to the shaft hole 312 even when an offset error occurs due to the shaft and coupling sleeve 31 not being concentric. Easy to install; the first fastener 33 is configured to connect the coupling sleeve 31 and the first rotating shaft 32 to prevent the first connecting portion 321 from falling out of the universal hole 311, but the first fastener 33 does not affect the movement between the coupling sleeve 31 and the first rotating shaft 32.

[0079] The universal connection structure 3 enables the coupling sleeve 31 and the first rotating shaft 32 to have universal shaking capability, making the rotating shaft more convenient to install.

[0080] Optionally, the universal hole 311 is a polygonal hole, and the first connecting part 321 is a polygonal column matching the polygonal hole. There is a gap between the polygonal column and the polygonal hole to allow the coupling sleeve 31 to shake relative to the first rotating shaft 32. The polygonal structure can be connected to each other through the edges of the polygonal column and the polygonal hole in the event of relative shaking, which is easy to use.

[0081] Exemplarily, the polygonal hole is a regular N-gon hole, and the first connecting portion 321 is a regular N-gon column matching the regular N-gon hole, N≥4, and N is an even number, such as the polygon is a regular quadrilateral, a regular hexagon or a regular octagon, the structural design is more reasonable; and it can be understood that the side length of the cross section of the regular N-gon hole is greater than the side length of the cross section of the regular N-gon column, and the length of the diagonal of the cross section of the regular N-gon column is greater than the distance between the two opposite side lengths of the cross section of the regular N-gon hole.

[0082] A through hole 313 coinciding with the axis of the universal hole 311 is provided at the bottom of the rotating shaft hole 312. The first fastener 33 is a first fastening screw. The first connecting part 321 is provided with a first fastening hole. The first fastener 33 can pass through the through hole 313 and be threadedly connected to the first fastening hole, which is convenient for installation.

[0083] Exemplarily, referring to Figure 10, the through hole 313 includes a lower connecting hole 3131 and an upper avoidance hole 3132. The first fastener 33 is threadedly connected to the first fastening hole through the lower connecting hole 3131. The nut of the first fastener 33 is limited in the upper avoidance hole 3132, and when the first rotating shaft 32 moves along the axial direction of the universal hole 311 in the universal hole 311, it can drive the nut of the first fastener 33 to move in the upper avoidance hole 3132, so that the first rotating shaft 32 can swing freely without being restricted by the first fastener 33.

[0084] To prevent the first fastener 33 from loosening, the universal connection structure 3 also includes an elastic member 34. A rotation limit plate 322 is also provided on the first rotating shaft 32. The first end of the elastic member 34 abuts the coupling sleeve 31, and the second end abuts the rotation limit plate 322. This prevents the elastic member 34 from abutting against the first connecting plate 212 or the second connecting plate 213, which could cause relative wear. The rotation limit plate 322 also serves to limit the first rotating shaft 32 to the first connecting plate 212 or the second connecting plate 213, resulting in a more rational structural design. The elastic member 34 is a second spring.

[0085] The coupling sleeve 31 is also provided with a second fastening hole 314 connected to the shaft hole 312. A second fastener 315 is provided in the second fastening hole 314 to press the shaft. The second fastener 315 is a second fastening screw threadedly connected to the second fastening hole 314, making operation more convenient.

[0086] Example 2

[0087] As shown in Figure 11, the manual operating mechanism provided in this embodiment includes a bottom connection structure 1, a frame structure 2, an energy storage structure 4, and a universal connection structure 3. The bottom connection structure 1 and the frame structure 2 are the same as those in the first embodiment and will not be described again here.

[0088] The energy storage structure 4 and the universal connection structure 3 are described below with reference to the accompanying drawings.

[0089] The universal connection structure 3 in this embodiment is substantially the same as the universal connection structure 3 in the first embodiment, and only the differences are described below.

[0090] The universal connection structure 3 includes, in addition to the parts in the first embodiment, a second rotating shaft 35, wherein the first rotating shaft 32 and the second rotating shaft 35 are connected to each other and can rotate with each other, and the connection between the coupling sleeve 31 and the first rotating shaft 32 is the same as the connection between the coupling sleeve 31 and the second rotating shaft 35, both of which can achieve universal shaking.

[0091] The energy storage structure 4 includes an energy storage frame 41 and an energy storage assembly 42. The energy storage frame 41 includes a first connecting plate 212 or a second connecting plate 213 disposed in the frame structure 2. The first rotating shaft 32 is rotatably disposed on the first connecting plate 212 or the second connecting plate 213 of the frame structure 2. The second rotating shaft 35 is rotatably disposed on the energy storage frame 41. When the first rotating shaft 32 rotates, it can drive the toggle assembly 23 of the frame structure 2 to operate to realize the opening and closing of the circuit breaker 100.

[0092] The energy storage assembly 42 includes a first rotating frame 421, a second rotating frame 422 and an energy storage component 423. The first rotating frame 421 is clamped with the first rotating shaft 32 so that the first rotating frame 421 and the first rotating shaft 32 can rotate synchronously. The second rotating frame 422 is clamped with the second rotating shaft 35 so that the second rotating frame 422 and the second rotating shaft 35 can rotate synchronously. The first rotating frame 421 is clamped with the energy storage frame 41. The first rotating frame 421 and the energy storage frame 41 are detachably clamped, that is, after the force acting on the first rotating frame 421 to rotate reaches a certain level, the first rotating frame 421 can be detached from the energy storage frame 41 and rotate freely. When the second rotating shaft 35 is rotated along the first circumferential direction through the coupling sleeve 31, the second rotating shaft 35 simultaneously drives the second rotating frame 422 to rotate. The second rotating frame 422 rotates along the first circumferential direction (clockwise in this embodiment) to charge the energy storage component 423. After the second rotating frame 422 rotates by a preset angle, it can abut against the first rotating frame 421. When the second rotating frame 422 continues to rotate, it can drive the first rotating frame 421 to rotate synchronously. At this time, the first rotating frame 421 can be detached from the energy storage frame 41 to achieve free rotation. The energy storage component 423 after energy storage drives the first rotating frame 421 to rotate. The first rotating frame 421 drives the first rotating shaft 32 to rotate to activate the toggle assembly 23 of the frame structure 2, thereby realizing rapid closing of the circuit breaker 100 and better operating feel.

[0093] After the circuit breaker 100 is closed, the second rotating frame 422 abuts against the first rotating frame 421. While the second rotating shaft 35 rotates along the second circumferential direction through the coupling sleeve 31, the second rotating frame 422 drives the first rotating frame 421 to rotate and immediately transmits the force to the first rotating shaft 32 to drive the toggle assembly 23 of the frame structure 2 to realize the undelayed opening of the circuit breaker 100.

[0094] Optionally, as shown in FIG12 , a first extending protrusion 4211 is provided on the outer periphery of the first rotating frame 421, and the energy storage frame 41 is provided with an energy storage slot. The first extending protrusion 4211 can engage with or disengage from the energy storage slot. This structure allows the first extending protrusion 4211 to disengage from the energy storage slot when the rotational force of the first rotating frame 421 reaches a certain level.

[0095] The outer periphery of the first rotating frame 421 is further provided with a first extension arm 4213 and a second extension arm 4214, and the outer periphery of the second rotating frame 422 is provided with a second extension protrusion 4221. When the second rotating frame 422 rotates along the first circumferential direction, the first end 4224 of the second extension protrusion 4221 can abut against the first extension arm 4213 to drive the first rotating frame 421 to rotate. Driven by the second rotating frame 422, the first rotating frame 421 can make the first extension protrusion 4211 disengage from the energy storage slot; when the second rotating frame 422 rotates along the second circumferential direction (counterclockwise in this embodiment), the second end 4225 of the second extension protrusion 4221 can abut against the second extension arm 4214 to drive the first rotating frame 421 to rotate along the second circumferential direction, and realize the rapid opening of the circuit breaker 100 through the first rotating shaft 32. It can be understood that when the circuit breaker is closed, the second extension arm 4214 is arranged close to the second end 4225 of the second extension protrusion 4221. When the second rotating frame 422 rotates, the first rotating frame 421 can be quickly driven to rotate through the second extension arm 4214, thereby achieving rapid and delay-free opening of the circuit breaker.

[0096] As shown in Figure 13, a third extension arm 4222 is further provided on the outer periphery of the second rotating frame 422. The third extension arm 4222 and the first extension arm 4213 are adjacently distributed. The energy storage component 423 includes a torsion spring, which is sleeved on the second rotating shaft 35. When the second rotating frame 422 rotates along the first circumferential direction, the third extension arm 4222 can abut against the first torsion arm 426 of the torsion spring, and the second torsion arm 427 of the torsion spring can abut against the second extension arm 4214 to store energy, and the structural design is more reasonable.

[0097] The first rotating frame 421 is provided with a rectangular hole 4212, and the first rotating shaft 32 is provided with a first connecting portion 321. The first connecting portion 321 is clamped in the rectangular hole 4212. The cross-section of the first connecting portion 321 is a regular quadrilateral, and the first connecting portion 321 can slide along the length direction of the rectangular hole 4212. This structure enables the first rotating frame 421 to slide away from the energy storage slot along the length direction of the rectangular hole 4212 after the second rotating frame 422 abuts against the first rotating frame 421 after receiving force, so that the first extending protrusion 4211 is disengaged from the energy storage slot, and the energy storage member 423 drives the first rotating frame 421 to rotate.

[0098] In order to enable the first extension protrusion 4211 to be stuck in the energy storage slot when the second rotating frame 422 rotates in the opposite direction along the second circumferential direction, the second rotating frame 422 is provided with a fourth extension arm 4223, and the fourth extension arm 4223 is adjacent to the second extension arm 4214. When the second rotating frame 422 rotates in the opposite direction along the second circumferential direction, the fourth extension arm 4223 abuts against the second torsion arm 427 of the torsion spring, and the first torsion arm 426 of the torsion spring abuts against the first extension arm 4213. When the first rotating frame 421 rotates in the opposite direction, the energy storage member 423 can generate a component force toward the energy storage slot on the first rotating frame 421, so that the first extension protrusion 4211 can be stuck in the energy storage slot.

[0099] As shown in FIG. 14 , a sleeve 424 is sleeved on the second rotating shaft 35 , and the energy storage component 423 can be sleeved on the sleeve 424 to prevent the energy storage component 423 from being locked.

[0100] A washer 425 is further sleeved on the second rotating shaft 35 . The washer 425 is sandwiched between the first rotating frame 421 and the second rotating frame 422 to raise the second rotating frame 422 , making the structural design more reasonable.

[0101] The outer circumference of the second rotating shaft 35 is provided with symmetrically arranged clamping surfaces, and the second rotating frame 422 is provided with a clamping hole, and the clamping surface can be clamped in the clamping hole to achieve the clamping of the second rotating shaft 35 and the second rotating frame 422.

[0102] It should be noted that after the energy storage structure 4 is added to the manual operating mechanism, the two ends of the second spring in the universal connection structure 3 are respectively abutted between the coupling sleeve 31 and the second rotating shaft 35 to prevent the second spring and the energy storage frame 41 from abutting against each other and wearing each other.

[0103] The present application provides a bottom connection structure that can be connected to circuit breakers with different numbers of poles. The bottom connection structure is rotatably arranged on the first bottom connection plate and the second bottom connection plate through a first adjustment rod and a second adjustment rod, and the first adjustment rod and the second adjustment rod can be moved and adjusted along the second direction relative to the first bottom connection plate and the second bottom connection plate, so that the first adjustment rod and the second adjustment rod can respectively drive the first connector and the second connector to be plugged into the plug holes of multi-stage circuit breakers with different numbers of poles, thereby realizing matching connection with circuit breakers with different numbers of poles, flexible and convenient installation, and greatly improving practicality.

[0104] This application provides a frame structure comprising a frame body and a slide. By providing a first connecting plate and a second connecting plate on the frame body, and by providing a universal connection structure on both the first and second connecting plates, the user can select operation in two different directions according to needs. When the universal connection structure is rotated, the slide moves in the first direction, thereby achieving opening and closing of the circuit breaker. This frame structure of the application enables forward or sideways operation of the circuit breaker, improving operational flexibility.

Claims

1. A bottom connection structure capable of connecting to circuit breakers (100) with different pole numbers, the bottom connection structure (1) comprising: A base (11) including a first bottom connection plate (111) and a second bottom connection plate (112) spaced apart in a first direction, the circuit breaker (100) being clamped between the first bottom connection plate (111) and the second bottom connection plate (112); A first connection assembly (12) including a first adjusting rod (121) and a first plug-in member (122), a first end of the first adjusting rod (121) being rotatably connected to the first bottom connection plate (111) and moving in a second direction, the first plug-in member (122) being disposed at a second end of the first adjusting rod (121) and capable of passing through the first bottom connection plate (111) and plugging into a plugging hole on a first side of the circuit breaker (100); A second connection assembly (13) including a second adjusting rod (131) and a second plug-in member (132), a first end of the second adjusting rod (131) being rotatably connected to the second bottom connection plate (112) and moving in the second direction, the second plug-in member (132) being disposed at a second end of the second adjusting rod (131) and capable of passing through the second bottom connection plate (112) and plugging into the plugging hole on a second side of the circuit breaker (100).

2. The bottom connection structure according to claim 1, wherein, A first long slot hole (1111) extending in the second direction is provided on the first bottom connection plate (111), and the first adjusting rod (121) is connected to the first long slot hole (1111) through a first connection pin (123); A second long slot hole (1311) extending in the second direction is provided on the second adjusting rod (131), and a second connection pin (133) is provided on the second bottom connection plate (112) and connected to the second long slot hole (1311).

3. The bottom connection structure according to claim 2, wherein, The first connection pin (123) passes through the first long slot hole (1111) and the first adjusting rod (121) and is limited by a first retaining ring (124), the first bottom connection plate (111) and the first adjusting rod (121) are disposed between a pin cap of the first connection pin (123) and the first retaining ring (124), and a distance between the pin cap of the first connection pin (123) and the first retaining ring (124) is greater than a sum of thicknesses of the first bottom connection plate (111) and the first adjusting rod (121); The second connection pin (133) passes through the second bottom connection plate (112) and the second long slot hole (1311) and is limited by a third retaining ring (134), the second bottom connection plate (112) and the second adjusting rod (131) are disposed between a pin cap of the second connection pin (133) and the third retaining ring (134), and a distance between the pin cap of the second connection pin (133) and the third retaining ring (134) is greater than a sum of thicknesses of the second bottom connection plate (112) and the second adjusting rod (131).

4. The bottom connection structure according to claim 3, wherein, The first connection component (12) further includes a pressing member (125). The pressing member (125) is rotatably arranged on the first bottom connecting plate (111), and the pressing member (125) is arranged to press the first adjusting rod (121) against the first bottom connecting plate (111).

5. The bottom connection structure according to claim 4, wherein The pressing member (125) is a spring piece, and the spring piece elastically presses against the first adjusting rod (121).

6. The bottom connection structure according to claim 3, wherein, The second connection component (13) further includes a first spring (135). The first spring (135) is sleeved on the second connection pin (133) and is elastically clamped between the pin cap of the second connection pin (133) and the second bottom connecting plate (112).

7. The bottom connection structure according to claim 6, wherein, The second connection component (13) further includes a pressing plate (136). The second connection pin (133) passes through the pressing plate (136). The pressing plate (136) is located between the third retaining ring (134) and the second adjusting rod (131), and the pressing plate (136) is movable along the first direction.

8. The bottom connection structure according to claim 1, wherein, Two first adjusting rods (121) are provided. The two first adjusting rods (121) are arranged at intervals along the third direction, and each first adjusting rod (121) is provided with a first plug-in member (122); two second adjusting rods (131) are provided. The two second adjusting rods (131) are arranged at intervals along the third direction, and each second adjusting rod (131) is provided with a second plug-in member (132).

9. The bottom connection structure according to claim 1, wherein, The first plug-in member (122) includes a first plug-in rod (1221) and a first fixing column (1222) that are fixedly plugged into each other, and the first adjusting rod (121) is rotatably sleeved on the first plug-in rod (1221); the second plug-in member (132) includes a second plug-in rod (1321) and a second fixing column (1322) that are fixedly plugged into each other, and the second adjusting rod (131) is rotatably sleeved on the second plug-in rod (1321).

10. A manual operating mechanism includes the bottom connection structure (1), a frame structure (2), and a universal connection structure (3) according to any one of claims 1-9. The bottom connection structure (1) is arranged to connect a circuit breaker (100). The frame structure (2) is arranged on the bottom connection structure (1). The universal connection structure (3) is arranged on the frame structure (2). Rotating the universal connection structure (3) can cause the frame structure (2) to act to realize the opening and closing of the circuit breaker (100).

11. A frame structure includes: A frame main body (21) includes a main support plate (211), a first connection plate (212), and a second connection plate (213). The first connection plate (212) is arranged parallel to the main support plate (211). The second connection plate (213) is arranged at an angle to the main support plate (211), and both the first connection plate (212) and the second connection plate (213) can be connected to the universal connection structure (3); A slide plate (22) is slidably arranged on the main support plate (211) along a first direction, and the slide plate (22) is connected to the universal connection structure (3). Rotating the universal connection structure (3) can drive the slide plate (22) to slide along the first direction, so as to open and close the circuit breaker (100).

12. The frame structure according to claim 11 further comprises a toggle assembly (23), wherein the toggle assembly (23) is connected to the slide plate (22) and is configured to be linked with a switch handle of the circuit breaker (100), and the slide plate (22) is linked with the toggle assembly (23).

13. The frame structure according to claim 12, wherein, The main support plate (211) is provided with track grooves (2111) on both sides along the first direction, and both ends of the slide plate (22) are connected to the shifting assembly (23) through fourth connecting pins (223), and the two fourth connecting pins (223) are respectively slidably arranged in the track grooves (2111) on both sides.

14. The frame structure according to claim 13, wherein, The main support plate (211) is also provided with two groups of mounting holes (2112) for connecting to the base (11) of the bottom connection structure (1); the two track grooves (2111) and the two groups of mounting holes (2112) are symmetrically arranged with the center line of the frame body (21) along the first direction as a reference, and the mounting holes (2112) located on both sides of the center line of the track groove (2111) in each group of mounting holes (2112) are symmetrically arranged with the center line of the track groove (2111) as a reference.

15. The frame structure according to claim 12, wherein, The toggle assembly (23) comprises a translation plate (231) and two toggle plates (232) connected to the translation plate (231); the translation plate (231) is fixedly connected to the slide plate (22); and the switch handle can be limited between the two toggle plates (232).

16. The frame structure according to claim 11 further comprises a swing frame (24), wherein the swing frame (24) is fixedly connected to the universal connection structure (3), and the universal connection structure (3) drives the slide plate (22) to slide through the swing frame (24).

17. The frame structure according to claim 16, wherein, The swing frame (24) is provided with a U-shaped groove (2421), and the sliding plate (22) is provided with a first protrusion (221) and a second protrusion (222) on one side facing the first connecting plate (212) and on one side facing the second connecting plate (213), respectively, and the U-shaped groove (2421) can be movably connected to the first protrusion (221) and the second protrusion (222) respectively.

18. The frame structure according to claim 11, wherein, The main support plate (211) is provided with a first rotation hole (2113) rotatably connected to the universal connection structure (3); a bending plate is provided on a side of the first connection plate (212) facing the second connection plate (213); the bending plate is provided with a second rotation hole (2114) rotatably connected to the universal connection structure (3).

19. The frame structure according to claim 11, wherein, The frame body (21) further comprises a side plate (214), wherein the side plate (214) is vertically fixedly disposed on the main support plate (211), and the first connecting plate (212) is vertically connected to the side plate (214).

20. A manual operating mechanism, comprising a bottom connection structure (1), a frame structure (2) according to any one of claims 11-19, and a universal connection structure (3). The bottom connection structure (1) is configured to connect to a circuit breaker (100). The frame structure (2) is disposed on the bottom connection structure (1). The universal connection structure (3) is disposed on the frame structure (2). Rotating the universal connection structure (3) can cause the frame structure (2) to act to achieve opening and closing of the circuit breaker (100).

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