Circuit breaker closing device

Abstract

The utility model provides a circuit breaker closing device, relates to the technical field of circuit breaker test auxiliary equipment, and is used for reducing the investment of human resources and reducing the probability of serious consequences such as fire disasters and the like in the process of carrying out a circuit breaker CO test. The circuit breaker closing device comprises a bearing frame, a driving assembly and a pushing assembly, wherein the driving assembly is arranged on the bearing frame. The pushing assembly is provided with a first end and a second end which are oppositely arranged, and the first end is arranged at the driving end of the driving assembly. The driving assembly is used for driving the pushing assembly to move towards the handle of the circuit breaker, so that the second end abuts against the handle to drive the circuit breaker to be switched on. An included angle alpha is formed between the direction from the first end to the second end and the moving direction of the pushing assembly, and alpha is larger than or equal to-30 degrees and smaller than 90 degrees.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breaker test auxiliary equipment, and in particular to a circuit breaker closing device. Background Art

[0002] In the prior art, when conducting a circuit breaker opening-closing test (referred to as a circuit breaker CO test), in order to close the circuit breaker, a hole must be drilled in the circuit breaker handle to secure one end of a rope to the handle. At the same time, a through-hole must be provided in the test chamber wall so that the other end of the rope can pass through the fixed pulley and extend through the wall to the outside of the test chamber.

[0003] To conduct a circuit breaker CO test, two operators are generally required. One operator operates the control panel, while the other operator, upon receiving instructions, pulls a rope outside the test chamber to rotate the handle, closing the circuit breaker.

[0004] Thus, in the prior art, when conducting a circuit breaker CO test, not only multiple people are required to operate, but also the rope is easily ignited and broken by the arc during the test, and even worse, causing more serious consequences such as fire. Utility Model Content

[0005] The present application provides a circuit breaker closing device, which is used to reduce the investment of human resources and the probability of serious consequences such as fire during the process of performing a circuit breaker CO test.

[0006] The present application provides a circuit breaker closing device, comprising a support frame, a drive assembly, and a push assembly, wherein the drive assembly is disposed on the support frame. The push assembly has a first end and a second end disposed opposite each other, with the first end disposed at the drive end of the drive assembly. The drive assembly is configured to drive the push assembly toward a circuit breaker handle, causing the second end to push against the handle to close the circuit breaker. The direction from the first end to the second end forms an angle α with the direction of movement of the push assembly, where -30° ≤ α < 90°.

[0007] When using this technical solution, simply pressing the button on the control panel that controls the drive assembly's on / off function controls the push assembly to move toward the handle, causing the second end to push against the handle, thereby closing the circuit breaker. This allows a single person to operate the control panel and control the circuit breaker closing. Furthermore, compared to the flammable ropes used in the prior art, the circuit breaker closing device provided by this application is non-flammable and non-destructive, making it reusable and reducing the risk of serious consequences such as fire.

[0008] In a possible implementation, the carrier includes a first insulating plate and a second insulating plate, the second insulating plate is arranged parallel to one side of the first insulating plate, and the driving assembly is arranged on a side of the second insulating plate away from the first insulating plate.

[0009] When the above technical solution is adopted, it can not only provide stable supporting force for the driving component and the pushing component, but also prevent the arc generated at the moment of closing the circuit breaker from damaging the supporting frame.

[0010] In one possible implementation, the first insulating plate is connected to the second insulating plate via a first threaded structure. The second insulating plate is provided with a first waist hole extending along the movement direction, the first insulating plate is provided with a first connection hole corresponding to the first waist hole, and the first threaded structure is provided on the first waist hole and the first connection hole.

[0011] When using this technical solution, the first and second insulating plates are connected in a detachable manner. This ensures that when the drive assembly drives the push assembly toward the circuit breaker handle, the second end contacts the handle, thereby closing the circuit breaker. Furthermore, this facilitates independent replacement or repair of the first and second insulating plates.

[0012] In a possible implementation, the supporting frame further includes at least one first connecting plate, and the first connecting plate is arranged in parallel between the first insulating plate and the second insulating plate.

[0013] This technical solution increases the distance between the side of the first insulating plate facing away from the second insulating plate and the side of the second insulating plate facing away from the first insulating plate. Accordingly, since the drive assembly is mounted on the second insulating plate and the push assembly is positioned on the drive assembly, the arrangement of the first connecting plate allows for adjustment of the contact position between the second end and the handle. Given a constant pushing force provided by the push assembly, the handle is easily pushed, facilitating closing of the circuit breaker.

[0014] In one possible implementation, the push assembly includes a support plate and a push plate, one end of the support plate being disposed at the drive end. The support plate is provided with a plurality of second connection holes arranged sequentially from the first end to the second end. The push plate is disposed parallel to the support plate, with the end of the push plate distal from the drive assembly being the second end. The push plate is connected to the support plate via a second threaded structure. The push plate is provided with a second waist hole extending from the first end to the second end, the second waist hole corresponding to at least one second connection hole, and the second threaded structure is disposed in the second connection hole and the second waist hole.

[0015] When using this technical solution, the push plate and support plate are connected in a detachable manner. This ensures that when the drive assembly moves the push plate toward the circuit breaker handle, the second end contacts the handle, thereby closing the circuit breaker. Furthermore, this facilitates independent replacement or repair of the push plate and support plate.

[0016] In one possible implementation, the push assembly further includes a connecting block and a second connecting plate, the connecting block being disposed at the driving end. The second connecting plate is attached to the connecting block via a third threaded structure. The second connecting plate is provided with a third waist hole extending perpendicularly to the surface of the second insulating plate. The connecting block is provided with a third connecting hole that mates with the third waist hole, and the third threaded structure is disposed in both the third waist hole and the third connecting hole.

[0017] When adopting the above technical solution, as can be seen from the above, the connection between the second connecting plate and the connecting block is a detachable connection. On the one hand, this ensures that when the drive assembly drives the pushing assembly toward the circuit breaker handle, the second end can push the handle away from the circuit breaker body to close the circuit breaker. On the other hand, this facilitates the independent replacement or maintenance of the second connecting plate and the connecting block.

[0018] In a possible implementation, a limiting groove is provided on one side of the connecting block for connecting with the second connecting plate, the second connecting plate is arranged in the limiting groove, and an extension direction of the limiting groove is parallel to an extension direction of the third waist hole.

[0019] When the above technical solution is adopted, when the second connecting plate slides along the extension direction of the third waist hole, the second connecting plate is located in the limiting groove, thereby preventing the second connecting plate from being misaligned with the connecting block. Furthermore, the second end is ensured to be able to contact the handle.

[0020] In one possible implementation, the support plate is further provided with a plurality of fourth connection holes arranged sequentially from the first end to the second end. The pushing assembly further includes an auxiliary block, which is attached to the support plate via a fourth threaded structure. The auxiliary block and the pushing plate are located on the same side of the support plate, with the auxiliary block located on the side of the pushing plate closer to the drive assembly. The auxiliary block is provided with a fourth slit extending from the first end to the second end, the fourth slit corresponding to at least one fourth connection hole, and the fourth threaded structure is disposed in both the fourth connection hole and the fourth slit.

[0021] When using the above technical solution, the auxiliary block and the support plate are connected in a detachable manner. This allows the position of the auxiliary block relative to the push plate to be adjusted based on the actual position of the push plate on the support plate. This ensures that when the second end pushes against the handle, the auxiliary block provides support for the push plate, preventing it from sliding toward the drive assembly. Furthermore, this facilitates independent replacement or repair of the auxiliary block and support plate.

[0022] In a possible implementation, the pushing plate is an insulating plate.

[0023] When the above technical solution is adopted, not only can the arc generated at the moment of closing the circuit breaker be prevented from damaging the push plate, but also the probability of serious consequences such as fire can be reduced.

[0024] In one possible implementation, the pushing component includes multiple connecting rows connected end to end in sequence, the multiple connecting rows are arranged in a direction from the first end to the second end, the multiple connecting rows form a connecting row group, and the two ends of the connecting row group are the first end and the second end. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a circuit breaker closing device provided in an embodiment of the present application.

[0026] Figure 2 Schematic diagram of the first direction, second direction, and third direction provided in an embodiment of the present application.

[0027] Figure 3 This is a schematic front view of the second insulating plate provided in an embodiment of the present application.

[0028] Figure 4 A schematic side view of the second insulating plate provided in an embodiment of the present application.

[0029] Figure 5 This is a schematic front view of the first insulating plate provided in an embodiment of the present application.

[0030] Figure 6 A schematic side view of the first insulating plate provided in an embodiment of the present application.

[0031] Figure 7 This is a schematic front view of the first connecting plate provided in an embodiment of the present application.

[0032] Figure 8 A schematic side view of the first connecting plate provided in an embodiment of the present application.

[0033] Figure 9 Schematic diagram of the positional relationship between the support plate and the second connecting plate provided in the embodiment of the present application Figure 1 .

[0034] Figure 10 Schematic diagram of the positional relationship between the support plate and the second connecting plate provided in the embodiment of the present application Figure 2 .

[0035] Figure 11 This is a schematic front view of the push plate provided in an embodiment of the present application.

[0036] Figure 12A schematic side view of the push plate provided in an embodiment of the present application.

[0037] Figure 13 A schematic diagram of the structure of the connection block provided in an embodiment of the present application.

[0038] Figure 14 This is a schematic front view of the auxiliary block provided in an embodiment of the present application.

[0039] Figure 15 A schematic side view of the auxiliary block provided in an embodiment of the present application.

[0040] Figure 16 This is a schematic front view of a connection bank provided in an embodiment of the present application.

[0041] Figure 17 A schematic side view of a connection bank provided in an embodiment of the present application.

[0042] Description of reference numerals:

[0043] 1-carrier, 11-first insulating plate, 111-first connecting hole, 12-second insulating plate, 121-first waist hole,

[0044] 13-first connecting plate, 131-through hole;

[0045] 2-Drive assembly,

[0046] 3- pushing assembly, 31- supporting plate, 311- second connecting hole, 312- fourth connecting hole, 32- pushing plate, 321- second waist hole, 33- connecting block, 331- third connecting hole, 332- limiting slot, 34- second connecting plate, 341- third waist hole, 35- auxiliary block, 351- fourth waist hole;

[0047] 30-Connection row. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0050] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0051] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the current limiting module of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0052] In addition, the terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more such features.

[0053] In the description of this application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two (including two).

[0054] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure can refer to a physical connection. For example, the physical connection can be a fixed connection, such as a fixed connection through a barrier, such as a fixed connection through screws, bolts, or other barrier; the physical connection can also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] See also Figure 1 As shown, an embodiment of the present application provides a circuit breaker closing device, which includes a carrier 1, a drive assembly 2, and a push assembly 3. The drive assembly 2 is disposed on the carrier 1. The push assembly 3 has a first end and a second end disposed opposite each other, with the first end disposed at the drive end of the drive assembly 2. The drive assembly 2 is configured to drive the push assembly 3 toward the handle of the circuit breaker, causing the second end to push against the handle to close the circuit breaker.

[0056] In specific implementation, the carrier 1 can be a carrier plate, or a rack assembled from profiles, etc., which is not specifically limited here, as long as it can provide stable supporting force for the driving component 2 and the pushing component 3.

[0057] The driving component 2 may be a driving cylinder, which may be an electric cylinder, a pneumatic cylinder or a hydraulic cylinder.

[0058] The structure of the driving cylinder is relatively simple and reliable. When the driving cylinder is used to realize reciprocating motion, there is no transmission gap, so that the movement of the pushing component 3 is relatively stable.

[0059] like Figure 1 As shown, when the driving component 2 is a driving cylinder, the mounting end of the driving cylinder is fixedly mounted on the carrier 1, and the first end of the pushing component 3 is mounted on the driving end of the driving cylinder.

[0060] When the driving end of the driving cylinder is extended, it can drive the pushing component 3 to move, thereby driving the pushing component 3 to move in a direction close to the handle of the circuit breaker.

[0061] Specifically, when the drive end of the drive cylinder extends, it drives the push assembly 3 toward the circuit breaker's handle. When the second end of the push assembly 3 contacts the handle, the drive end of the drive cylinder continues to extend, pushing against the handle, rotating the handle and closing the circuit breaker. Thereafter, the drive end can be extended or retracted to prevent damage to the drive cylinder from the arc generated during the instantaneous closing of the circuit breaker.

[0062] As an example, the driving component 2 may also be a linear module.

[0063] In this case, the linear module's slide rail can be fixedly mounted on the carrier 1, with its first end positioned on the linear module's slider. When the linear module's drive motor drives the slider to move along the slide rail, it can drive the first end of the push assembly 3 to move along the extension direction of the slide rail, thereby achieving movement of the push assembly 3.

[0064] In a specific implementation, a slide rail may be provided to extend toward the handle. In this way, when the slider moves along the slide rail, the push assembly 3 may be driven to move toward the handle of the circuit breaker, so that the second end pushes against the handle to drive the circuit breaker to close.

[0065] The pushing component 3 has a first end and a second end that are arranged opposite to each other. Specifically, the second end is an end that is in pushing contact with the handle, and the first end is an end opposite to the second end.

[0066] For example, when the pushing component 3 is a rectangular parallelepiped structure, the first end and the second end may be the two ends in the height direction, the two ends in the length direction, or the two ends in the width direction of the pushing component 3, which is not specifically limited here.

[0067] The material of the pushing component 3 can be a fireproof material, which is not specifically limited here.

[0068] When using the circuit breaker closing device provided in an embodiment of the present application to conduct a circuit breaker CO test, simply pressing the button on the control panel that controls the driving assembly 2 on the test process controls the movement of the driving assembly 3 toward the handle, causing the second end to push against the handle to close the circuit breaker. This allows a single person to operate the control panel to control circuit breaker closing. Furthermore, compared to the flammable ropes used in the prior art, the circuit breaker closing device provided in this application is non-flammable and non-destructive, making it reusable and reducing the risk of serious consequences such as fire.

[0069] In a possible implementation, an angle α is formed between the direction from the first end to the second end and the moving direction of the pushing component 3 , where −30°≤α<90°.

[0070] For ease of description, see Figure 2 As shown, the moving direction of the push assembly 3 is defined as the first direction, the direction from the first end to the second end is defined as the second direction. At the same time, the extension direction of the end of the handle away from the circuit breaker body relative to the circuit breaker body is defined as the third direction.

[0071] At this time, an included angle α is formed between the first direction and the second direction, and -30°≤α<90°.

[0072] Illustratively, α can be -30°, -15°, -10°, 0°, 15°, 30°, 45°, 60°, 75°, 89°, etc. Of course, this is just an example and not a specific limitation.

[0073] In specific implementation, the value of α can be determined according to actual conditions, which may be installation space, the angle between the third direction and the first direction, etc.

[0074] It should be understood that when different α values ​​are set, the angle between the first direction and the second direction is different, and correspondingly, the angle between the second direction and the third direction is different.

[0075] For example, assuming that the third direction is parallel to the horizontal direction and the first direction is parallel to the vertical direction, the first direction is perpendicular to the third direction. When α is equal to 0°, the second direction is parallel to the first direction and perpendicular to the third direction.

[0076] In addition, it should be noted that when the second direction is perpendicular to the third direction, all the force exerted by the pushing component 3 on the handle is converted into a driving force for pushing the handle to rotate.

[0077] In the embodiment provided herein, preferably, the first direction is parallel to the second direction, i.e., α is equal to 0°, and the first direction is perpendicular to the third direction. In this case, the driving force provided by the driving assembly 2 is completely converted into the driving force for rotating the handle by the pushing assembly 3, thereby saving driving force.

[0078] In one possible implementation, see Figure 1 As shown, the carrier 1 includes a first insulating plate 11 and a second insulating plate 12 . The second insulating plate 12 is arranged parallel to one side of the first insulating plate 11 , and the driving assembly 2 is arranged on one side of the second insulating plate 12 away from the first insulating plate 11 .

[0079] The arrangement of the first insulating plate 11 and the second insulating plate 12 can not only provide a stable supporting force for the driving assembly 2 and the pushing assembly 3 , but also prevent the arc generated at the moment of closing the circuit breaker from damaging the supporting frame 1 .

[0080] The first insulating plate 11 and the second insulating plate 12 are parallel. In a specific implementation, the first direction can be parallel to the second insulating plate 12 , so as to facilitate the installation of the driving assembly 2 .

[0081] The sizes and materials of the first insulating plate 11 and the second insulating plate 12 are not specifically limited here.

[0082] For example, the first insulating plate 11 may be made of insulating flame-retardant materials such as nylon-6 or nylon-66, and the second insulating plate 12 may be made of insulating flame-retardant materials such as nylon-6 or nylon-66. Of course, the present invention is not limited thereto.

[0083] Setting the material of the first insulating plate 11 and the second insulating plate 12 to insulating flame-retardant materials such as nylon-6 or nylon-66 can not only prevent the arc generated at the moment of closing the circuit breaker from damaging the support frame 1, but also reduce the probability of serious consequences such as fire.

[0084] The materials of the first insulating plate 11 and the second insulating plate 12 can be the same, or they can be different.

[0085] In a specific implementation, the connection method between the first insulating plate 11 and the second insulating plate 12 is not specifically limited here, and can be, for example, riveting, clamping, bonding, etc.

[0086] As an example, the first insulating plate 11 is connected to the second insulating plate 12 via a first thread structure.

[0087] See also Figure 3 and Figure 4 As shown, the second insulating plate 12 is provided with a first waist hole 121 extending along the moving direction, that is, the length direction of the first waist hole 121 is parallel to the moving direction.

[0088] See also Figures 3 to 6 As shown, the first insulating plate 11 is provided with a first connecting hole 111 corresponding to the first waist hole 121 , and the first thread structure is provided on the first waist hole 121 and the first connecting hole 111 .

[0089] As an example, the first thread structure may be a screw, and the first connection hole 111 may be a threaded hole.

[0090] The screw includes a nut and a screw rod, the radial dimension of the nut is greater than the width of the first waist hole 121, and the nut cannot pass through the first waist hole 121. The screw rod can slide in the first waist hole 121 along the length direction of the first waist hole 121.

[0091] In this case, the nut can be located on the side of the second insulating plate 12 away from the first insulating plate 11. The end of the screw away from the nut passes through the first waist hole 121 and is threadedly connected to the first connecting hole 111.

[0092] The screw is rotated to increase the length of the screw rod extending into the first connection hole 111 , and the screw can be tightened, so that the first insulation plate 11 and the second insulation plate 12 are connected through the first thread structure.

[0093] Rotate the screw in the opposite direction to reduce the length of the screw extending into the first connecting hole 111. At this time, the first insulating plate 11 and the second insulating plate 12 can move relative to each other, and the second insulating plate 12 can slide relative to the first insulating plate 11 along the length direction of the first waist hole 121.

[0094] Because the drive assembly 2 is mounted on the second insulating plate 12, the push assembly 3 is disposed on the drive assembly 2, and the first waist hole 121 extends along the direction of movement, as the second insulating plate 12 slides relative to the first insulating plate 11 along the length of the first waist hole 121, the distance between the second end and the handle can be adjusted to ensure that when the drive assembly 2 drives the push assembly 3 toward the circuit breaker handle, the second end contacts the handle, thereby closing the circuit breaker.

[0095] As another example, the first threaded structure may include a bolt and a nut, and the first connection hole 111 is a through hole.

[0096] The bolt includes a head and a screw. The radial dimension of the head is greater than the width of the first slit 121, and the head cannot pass through the first slit 121. The screw can slide within the first slit 121, along the length of the first slit 121. The radial dimension of the first connecting hole 111 is smaller than the radial dimension of the nut, and the nut can be confined to the side of the first insulating plate 11 away from the second insulating plate 12.

[0097] In this case, the head can be limited to the side of the second insulating plate 12 away from the first insulating plate 11. After the end of the screw away from the head passes through the first waist hole 121 and the first connecting hole 111, the nut is sleeved on the screw and threadedly connected to the screw.

[0098] The nut is rotated to increase the length of the screw rod extending into the nut, and the bolt can be tightened, so that the first insulating plate 11 and the second insulating plate 12 are connected through the first thread structure.

[0099] Rotate the nut in the opposite direction to reduce the length of the screw rod extending into the nut. At this time, the first insulating plate 11 and the second insulating plate 12 can move relative to each other, and the second insulating plate 12 can slide relative to the first insulating plate 11 along the length direction of the first waist hole 121.

[0100] Of course, in this embodiment, the radial dimension of the head can be larger than the radial dimension of the first connection hole 111, so that the head is confined to the side of the first insulating plate 11 away from the second insulating plate 12. The radial dimension of the nut is larger than the width of the first waist hole 121, so that the nut is confined to the side of the second insulating plate 12 away from the first insulating plate 11.

[0101] At this time, after the end of the screw away from the head passes through the first connecting hole 111 and the first waist hole 121 in sequence, the nut is sleeved on the screw and threadedly connected to the screw.

[0102] Similarly, the nut is rotated to increase the length of the screw rod extending into the nut, and the bolt can be tightened, so that the first insulating plate 11 and the second insulating plate 12 are connected through the first thread structure.

[0103] As can be seen from the above, the connection between the first insulating plate 11 and the second insulating plate 12 is detachable. This ensures that when the drive assembly 2 drives the push assembly 3 toward the circuit breaker handle, the second end contacts the handle, thereby closing the circuit breaker. Furthermore, this facilitates independent replacement or repair of the first and second insulating plates 11, 12.

[0104] When implementing it specifically, Figures 3 to 6 As shown, there can be multiple first waist holes 121, and the multiple first waist holes 121 can be arranged sequentially along the movement direction. Of course, the multiple first waist holes 121 can also be arranged in an array. This prevents the second insulating plate 12 from rotating relative to the first insulating plate 11 when there is only one first waist hole 121.

[0105] Accordingly, there are multiple first connection holes 111. The multiple first connection holes 111 can be arranged in sequence along the moving direction.

[0106] The number of first connection holes 111 connected to a first waist hole 121 can be one, and only one first threaded structure is provided in a first waist hole 121. Of course, the number of first connection holes 111 connected to a first waist hole 121 can be multiple, that is, multiple first threaded structures are provided in a first waist hole 121, to enhance the secure connection between the first insulating plate 11 and the second insulating plate 12.

[0107] In the examples provided in this application, see Figure 3 and Figure 4 As shown, there are four first waist holes 121 , and the four first waist holes 121 are arranged in an array.

[0108] In one possible implementation, Figure 1 As shown, the carrier 1 further includes at least one first connecting plate 13 , which is arranged in parallel between the first insulating plate 11 and the second insulating plate 12 .

[0109] The first connecting plate 13 is located between the first insulating plate 11 and the second insulating plate 12 , increasing the distance between a surface of the first insulating plate 11 away from the second insulating plate and a surface of the second insulating plate 12 away from the first insulating plate 11 .

[0110] Accordingly, since the driving assembly 2 is mounted on the second insulating plate 12 and the pushing assembly 3 is disposed on the driving assembly 2 , the provision of the first connecting plate 13 can adjust the contact position between the second end and the handle.

[0111] Specifically, when the thickness of the first connecting plate 13 is increased or the number of the first connecting plates 13 is increased, the second end can be connected along the Figure 2 The third direction is to move away from the first insulating plate 11. To ensure that the second end pushes the handle away from the circuit breaker body.

[0112] It can be understood that, according to the principle of leverage, when the second end pushes the handle away from the circuit breaker body, the larger the power arm of the handle is, the easier it is to push the handle when the pushing force provided by the pushing component 3 is constant, so as to facilitate closing the circuit breaker.

[0113] It should be noted that the thickness of the first connecting plate 13 is the dimension of the first connecting plate 13 in the direction from the first insulating plate 11 to the second insulating plate 12 .

[0114] In actual operation, the first connecting plate 13 may be made of a steel plate, which can improve the structural strength of the supporting frame 1 .

[0115] One side of the first connecting plate 13 is in close contact with one side of the first insulating plate 11, and the other side of the first connecting plate 13 is in close contact with one side of the second insulating plate 12. This increases the friction between the first connecting plate 13 and the first insulating plate 11, as well as the friction between the first connecting plate 13 and the second insulating plate 12, thereby enhancing the connection strength among the first connecting plate 13, the first insulating plate 11, and the second insulating plate 12. This prevents the reaction force of the handle on the pushing component 3 from acting on the carrier 1 when the pushing component 3 pushes against the handle, thereby preventing the first insulating plate 11, the second insulating plate 12, and the first connecting plate 13 from sliding relative to each other.

[0116] In a specific implementation, a through hole 131 corresponding to the first connection hole 111 can be opened on the first connection plate 13, see Figures 5 to 8 shown.

[0117] The first connection plate 13 , the first insulating plate 11 , and the second insulating plate 12 may be connected by a first thread structure.

[0118] For example, when the first threaded structure is a screw, the first connection hole 111 may be a threaded hole. After the end of the screw away from the nut passes through the first waist hole 121 and the through hole 131 , it is threadedly connected to the first connection hole 111 .

[0119] Of course, other fixed connection methods such as riveting or clamping can also be used to connect the first connecting plate 13 and the first insulating plate 11.

[0120] When there are multiple first connecting plates 13 , the multiple first connecting plates 13 are sequentially and parallelly arranged between the first insulating plate 11 and the second insulating plate 12 .

[0121] As an alternative, Figure 1 As shown, the pushing assembly 3 includes a support plate 31 and a pushing plate 32. One end of the support plate 31 is arranged at the driving end. At this time, the end of the support plate 31 used for connecting with the driving end is the first end.

[0122] like Figure 9 and Figure 10 As shown, the support plate 31 is provided with a plurality of second connection holes 311 arranged sequentially from the first end to the second end. A push plate 32 is disposed parallel to the support plate 31. The end of the push plate 32 that is distal to the drive assembly 2 is the second end. The push plate 32 is used to push against the handle. The push plate 32 is connected to the support plate 31 via a second threaded structure.

[0123] See also Figures 9 to 12 As shown, the push plate 32 is provided with a second waist hole 321 extending from the first end to the second end, the second waist hole 321 corresponds to at least one second connecting hole 311, and the second thread structure is provided in the second connecting hole 311 and the second waist hole 321.

[0124] As an example, the second thread structure may be a screw, and the second connection hole 311 may be a threaded hole.

[0125] The screw includes a nut and a screw rod, the radial dimension of the nut is greater than the width of the second waist hole 321, and the nut cannot pass through the second waist hole 321. The screw rod can slide in the second waist hole 321 along the length direction of the second waist hole 321.

[0126] In this case, the nut can be limited to the side of the push plate 32 away from the support plate 31. After the end of the screw away from the nut passes through the second waist hole 321, it is threadedly connected to the second connecting hole 311.

[0127] The screw is rotated to increase the length of the screw rod extending into the second connection hole 311 , and the screw can be tightened, so that the pushing plate 32 and the supporting plate 31 are connected through the second thread structure.

[0128] Rotate the screw in the opposite direction to reduce the length of the screw rod extending into the second connecting hole 311 , and the push plate 32 and the support plate 31 can move relative to each other, and the push plate 32 can slide relative to the support plate 31 along the length direction of the second waist hole 321 .

[0129] In this way, when the push plate 32 slides relative to the support plate 31 along the length direction of the second waist hole 321, the distance of the second end relative to the handle can be adjusted to ensure that when the drive assembly 2 drives the support plate 31 and the push plate 32 to move toward the direction close to the handle of the circuit breaker, the second end can contact the handle to drive the circuit breaker to close.

[0130] As another example, the second threaded structure may include a bolt and a nut, and the second connection hole 311 may be a through hole.

[0131] The bolt includes a head and a screw. The radial dimension of the head is larger than the width of the second waist hole 321, and the head cannot pass through the second waist hole 321. The screw can slide within the second waist hole 321 and along the length of the second waist hole 321. The radial dimension of the second connecting hole 311 is smaller than the radial dimension of the nut, so the nut can be restrained on the side of the support plate 31 away from the push plate 32.

[0132] In this case, the head can be limited to the side of the push plate 32 away from the support plate 31. After the end of the screw away from the head passes through the second waist hole 321 and the second connecting hole 311, the nut is sleeved on the screw and threadedly connected with the screw.

[0133] The nut is rotated to increase the length of the screw rod extending into the nut, and the bolt can be tightened, so that the push plate 32 and the support plate 31 are connected through the second thread structure.

[0134] The nut is rotated in the opposite direction to reduce the length of the screw rod extending into the nut. At this time, the push plate 32 and the support plate 31 can move relative to each other. The push plate 32 can slide relative to the support plate 31 along the length direction of the second waist hole 321.

[0135] Of course, in this embodiment, the radial dimension of the head can be larger than the radial dimension of the second connecting hole 311, so that the head is confined to the side of the support plate 31 away from the push plate 32. The radial dimension of the nut is larger than the width of the second waist hole 321, so that the nut is confined to the side of the push plate 32 away from the support plate 31.

[0136] At this time, after the end of the screw away from the head passes through the second connecting hole 311 and the second waist hole 321 in sequence, the nut is sleeved on the screw and threadedly connected to the screw.

[0137] Similarly, by rotating the nut to increase the length of the screw rod extending into the nut, the bolt can be tightened, thereby connecting the push plate 32 and the support plate 31 through the second threaded structure.

[0138] As can be seen from the above, the connection between the push plate 32 and the support plate 31 is detachable. This ensures that when the drive assembly 2 drives the push assembly 3 toward the circuit breaker handle, the second end contacts the handle, thereby closing the circuit breaker. Furthermore, this facilitates independent replacement or repair of the push plate 32 and support plate 31.

[0139] When implementing it specifically, Figures 9 to 12 As shown, the number of second waist holes 321 can be multiple, and the multiple second waist holes 321 can be arranged sequentially from the first end to the second end. Of course, the multiple second waist holes 321 can also be arranged in an array. This prevents the push plate 32 from rotating relative to the support plate 31 when there is only one second waist hole 321.

[0140] Accordingly, there are multiple second connection holes 311. The multiple second connection holes 311 can be arranged in sequence from the first end to the second end.

[0141] The number of second connection holes 311 connected to one second waist hole 321 can be one, and only one second threaded structure is provided in one second waist hole 321. Of course, the number of second connection holes 311 connected to one second waist hole 321 can be multiple, that is, multiple second threaded structures are provided in one first waist hole 121, to enhance the firmness of the connection between the push plate 32 and the support plate 31.

[0142] As an alternative, see Figure 1 As shown, the push assembly 3 provided in the embodiment of the present application further includes a connecting block 33 and a second connecting plate 34. The connecting block 33 is disposed at the driving end. The second connecting plate 34 is disposed on the connecting block 33 via a third threaded structure. The end of the connecting block 33 that is connected to the driving end is the first end.

[0143] In specific implementation, the connecting block 33 can be connected to the driving end by threaded connection, riveting, etc.

[0144] like Figure 9 and Figure 10 As shown, one end of the support plate 31 is disposed on the second connecting plate 34 .

[0145] The support plate 31 can be fixed on the second connecting plate 34 by welding, clamping, etc. Of course, the support plate 31 can also be integrally formed with the second connecting plate 34, which is not specifically limited here.

[0146] like Figure 1 、 Figure 9 and Figure 10As shown, a third waist hole 341 is provided on the second connecting plate 34 , and the extension direction of the third waist hole 341 is perpendicular to the surface of the second insulating plate 12 , that is, the length direction of the third waist hole 341 is perpendicular to the surface of the second insulating plate 12 .

[0147] like Figure 10 and Figure 13 As shown, a third connecting hole 331 matching with the third waist hole 341 is formed on the connecting block 33 , and a third threaded structure is provided on the third waist hole 341 and the third connecting hole 331 .

[0148] As an example, the third thread structure may be a screw, and the third connection hole 331 may be a threaded hole.

[0149] The screw includes a nut and a screw rod, the radial dimension of the nut is greater than the width of the third waist hole 341, and the nut cannot pass through the third waist hole 341. The screw rod can slide in the third waist hole 341 along the length direction of the third waist hole 341.

[0150] In this case, the nut can be limited to the side of the second connecting plate 34 away from the connecting block 33. After the end of the screw away from the nut passes through the third waist hole 341, it is threadedly connected to the third connecting hole 331.

[0151] The screw is rotated to increase the length of the screw rod extending into the third connection hole 331 , and the screw can be tightened, so that the second connection plate 34 and the connection block 33 are connected through the third thread structure.

[0152] Rotate the screw in the opposite direction to reduce the length of the screw extending into the third connecting hole 331. At this time, the second connecting plate 34 and the connecting block 33 can move relative to each other. The second connecting plate 34 can slide relative to the connecting block 33 along the length direction of the third waist hole 341.

[0153] Because the support plate 31 is mounted on the second connecting plate 34, the push plate 32 is mounted on the support plate 31, and the third waist hole 341 extends perpendicular to the surface of the second insulating plate 12, when the second connecting plate 34 slides relative to the connecting block 33 along the length of the third waist hole 341, the position of the second end in contact with the handle can be adjusted so that the second end can push the handle away from the circuit breaker body. The handle has a larger power arm, and when the pushing force provided by the push assembly 3 is constant, the handle is easily pushed, thereby facilitating the closing of the circuit breaker.

[0154] As can be seen from the above, the connection between the second connecting plate 34 and the connecting block 33 is detachable. This ensures that when the driving assembly 2 drives the pushing assembly 3 toward the circuit breaker handle, the second end can push the handle away from the circuit breaker body, thereby closing the circuit breaker. Furthermore, this facilitates the independent replacement or repair of the second connecting plate 34 and the connecting block 33.

[0155] When implementing it specifically, Figure 9 、 Figure 10 、 Figure 13 As shown, the number of third waist holes 341 can be multiple, and the multiple third waist holes 341 can be arranged sequentially along the extension direction of the third waist holes 341. Of course, the multiple third waist holes 341 can also be arranged in an array. This prevents the second insulating plate 12 from rotating relative to the first insulating plate 11 when there is only one third waist hole 341.

[0156] Accordingly, if Figure 13 As shown, there are multiple third connection holes 331 .

[0157] The number of third connecting holes 331 connected to one third waist hole 341 can be one, and only one third threaded structure is provided in one third waist hole 341. Of course, the number of third connecting holes 331 connected to one third waist hole 341 can be multiple, that is, multiple third threaded structures are provided in one third waist hole 341, to enhance the secure connection between the second connecting plate 34 and the connecting block 33.

[0158] As a possible approach, please combine Figure 1 、 Figure 10 and Figure 13 As shown, a limiting groove 332 is provided on one side of the connecting block 33 for connecting with the second connecting plate 34 , and the second connecting plate 34 is disposed in the limiting groove 332 . The extending direction of the limiting groove 332 is parallel to the extending direction of the third waist hole 341 .

[0159] Thus, when the second connecting plate 34 slides along the extending direction of the third waist hole 341, the second connecting plate 34 is located in the limiting groove 332, thereby preventing the second connecting plate 34 from being misaligned relative to the connecting block 33. Furthermore, it is ensured that the second end can contact the handle.

[0160] In one possible implementation, see Figure 1 、 Figure 9 and Figure 10 As shown, the support plate 31 is further provided with a plurality of fourth connection holes 312 sequentially arranged from the first end to the second end.

[0161] See also Figure 1As shown, the push assembly 3 provided in the embodiment of the present application further includes an auxiliary block 35, which is disposed on the support plate 31 via a fourth thread structure. The auxiliary block 35 and the push plate 32 are located on the same side of the support plate 31, and the auxiliary block 35 is located on the side of the push plate 32 closer to the drive assembly 2.

[0162] like Figure 14 and Figure 15 As shown, the auxiliary block 35 is provided with a fourth waist hole 351 extending from the first end to the second end, the fourth waist hole 351 corresponds to at least one fourth connecting hole 312, and the fourth thread structure is provided in the fourth connecting hole 312 and the fourth waist hole 351.

[0163] As an example, the fourth thread structure may be a screw, and the fourth connection hole 312 may be a threaded hole.

[0164] The screw includes a nut and a screw rod, the radial dimension of the nut is larger than the width of the fourth waist hole 351, and the nut cannot pass through the fourth waist hole 351. The screw rod can slide in the fourth waist hole 351 along the length direction of the fourth waist hole 351.

[0165] In this case, the nut can be limited to the side of the auxiliary block 35 away from the support plate 31. After the end of the screw away from the nut passes through the fourth waist hole 351, it is threadedly connected to the fourth connecting hole 312.

[0166] The screw is rotated to increase the length of the screw rod extending into the fourth connection hole 312 , and the screw can be tightened, so that the auxiliary block 35 and the support plate 31 are connected through the fourth thread structure.

[0167] Rotate the screw in the opposite direction to reduce the length of the screw extending into the fourth connecting hole 312. At this time, the auxiliary block 35 and the support plate 31 can move relative to each other, and the auxiliary block 35 can slide relative to the support plate 31 along the length direction of the fourth waist hole 351.

[0168] In this way, when the fourth block 35 slides relative to the support plate 31 along the length direction of the fourth waist hole 351, the distance between the auxiliary block 35 and the push plate 32 can be adjusted to ensure that when the second end pushes the handle, the auxiliary block 35 provides support for the push plate 32 to prevent the push plate 32 from sliding toward the direction close to the drive component 2.

[0169] As another example, the fourth thread structure may include a bolt and a nut, and the fourth connection hole 312 may be a through hole.

[0170] The bolt includes a head and a screw. The radial dimension of the head is greater than the width of the fourth waist hole 351, and the head cannot pass through the fourth waist hole 351. The screw can slide within the fourth waist hole 351 and along the length of the fourth waist hole 351. The radial dimension of the fourth connecting hole 312 is smaller than the radial dimension of the nut, so the nut can be restrained on the side of the support plate 31 away from the auxiliary block 35.

[0171] In this case, the head can be limited to the side of the auxiliary block 35 away from the support plate 31. After the end of the screw away from the head passes through the fourth waist hole 351 and the fourth connecting hole 312, the nut is sleeved on the screw and threadedly connected with the screw.

[0172] The nut is rotated to increase the length of the screw rod extending into the nut, and the bolt can be tightened, so that the auxiliary block 35 and the support plate 31 are connected through the fourth thread structure.

[0173] The nut is rotated in the opposite direction to reduce the length of the screw rod extending into the nut. At this time, the auxiliary block 35 and the support plate 31 can move relative to each other. The auxiliary block 35 can slide relative to the support plate 31 along the length direction of the fourth waist hole 351.

[0174] Of course, in this embodiment, the radial dimension of the head can be larger than the radial dimension of the fourth connecting hole 312, so that the head is confined to the side of the support plate 31 away from the auxiliary block 35. The radial dimension of the nut is larger than the width of the fourth waist hole 351, and the nut is confined to the side of the auxiliary block 35 away from the support plate 31.

[0175] At this time, after the end of the screw away from the head passes through the fourth connecting hole 312 and the fourth waist hole 351 in sequence, the nut is sleeved on the screw and threadedly connected to the screw.

[0176] Likewise, by rotating the nut to increase the length of the screw rod extending into the nut, the bolt can be tightened, thereby connecting the auxiliary block 35 and the support plate 31 via the fourth thread structure.

[0177] As can be seen from the above, the connection between the auxiliary block 35 and the support plate 31 is detachable. On the one hand, the position of the auxiliary block 35 relative to the push plate 32 can be adjusted based on the actual position of the push plate 32 on the support plate 31. This ensures that when the second end pushes against the handle, the auxiliary block 35 provides support for the push plate 32, preventing the push plate 32 from sliding toward the drive assembly 2. On the other hand, this facilitates independent replacement or repair of the auxiliary block 35 and the support plate 31.

[0178] When implementing it specifically, Figure 9 、 Figure 10 、 Figure 14 and Figure 15As shown, there is one fourth waist hole 351, and one fourth connection hole 312 connected to the fourth waist hole 351 can be provided. Only one fourth threaded structure is provided in the fourth waist hole 351. Of course, there can be multiple fourth connection holes 312 connected to the fourth waist hole 351, that is, multiple fourth threaded structures are provided in the fourth waist hole 351 to enhance the secure connection between the push plate 32 and the support plate 31.

[0179] For example, the push plate 32 is an insulating plate. The push plate 32 can be made of an insulating flame-retardant material such as nylon-6 or nylon-66, which can not only prevent the arc generated when the circuit breaker is closed from damaging the push plate 32, but also reduce the probability of serious consequences such as fire.

[0180] In addition to the above, see Figure 16 and Figure 17 As shown, the pushing assembly 3 provided in the embodiment of the present application may include a plurality of connecting rows 30 connected end to end in sequence, and the plurality of connecting rows 30 are arranged in the direction from the first end to the second end. The plurality of connecting rows 30 form a connecting row group, and the two ends of the connecting row group are the first end and the second end.

[0181] In actual situations, the connection row 30 is a plate-like structure, and two adjacent connection rows 30 can be connected by means of a snap connection, a riveted connection, or a threaded connection structure, which is not specifically limited here.

[0182] In practice, the size and number of connecting bars 30 are not specifically limited. Given a given size, the distance from the first end to the second end, and therefore the length of the push assembly 3, can be increased by increasing the number of connecting bars 30. This allows the distance of the second end relative to the handle to be adjusted, ensuring that when the drive assembly 2 drives the push assembly 3 toward the circuit breaker handle, the second end contacts the handle, thereby closing the circuit breaker.

[0183] Further, combined with Figure 1 and Figure 17 As shown, the contact position between the second end and the handle can be adjusted by adjusting the positional relationship between two adjacent connection rows 30 .

[0184] Specifically, see Figure 17 As shown, the three adjacent connecting bars 30 connected sequentially from the first end to the second end are defined as the first connecting bar, the second connecting bar, and the third connecting bar, and the connecting bar connected to the driving end is defined as the first connecting bar. When the first connecting bar and the third connecting bar are located on the same side of the second connecting bar, the thickness of the connecting bar group is equal to the thickness of the two connecting bars. When the first connecting bar and the third connecting bar are located on different sides of the second connecting bar, the thickness of the connecting bar group is equal to the thickness of the three connecting bars.

[0185] Similarly, the thickness of the connecting row group can be adjusted according to actual needs, so as to ensure that the second end pushes the handle away from the circuit breaker body.

Claims

1. A circuit breaker closing device, characterized in that: include: Carrier; A driving assembly, disposed on the carrier; A pushing assembly having a first end and a second end disposed opposite to each other; the first end is disposed at the driving end of the driving assembly; the driving assembly is configured to drive the pushing assembly toward a handle of a circuit breaker so that the second end pushes against the handle to close the circuit breaker; an angle α is defined between the direction from the first end to the second end and the direction of movement of the pushing assembly, where -30°≤α<90°.

2. The circuit breaker closing device according to claim 1, characterized in that: The carrier frame comprises: a first insulating plate; The second insulating plate is arranged parallel to one side of the first insulating plate; the driving component is arranged on one side of the second insulating plate away from the first insulating plate.

3. The circuit breaker closing device according to claim 2, characterized in that: The first insulating plate is connected to the second insulating plate via a first thread structure; The second insulating plate is provided with a first waist hole extending along the moving direction, and the first insulating plate is provided with a first connecting hole corresponding to the first waist hole; the first threaded structure is provided in the first waist hole and the first connecting hole.

4. The circuit breaker closing device according to claim 2, characterized in that: The supporting frame further includes at least one first connecting plate, which is arranged in parallel between the first insulating plate and the second insulating plate.

5. The circuit breaker closing device according to claim 2, characterized in that: The pushing component includes: A support plate, one end of which is disposed at the driving end; the support plate is provided with a plurality of second connection holes sequentially arranged along a direction from the first end to the second end; A push plate is arranged parallel to the support plate; the end of the push plate away from the drive assembly is the second end; the push plate is connected to the support plate through a second threaded structure; a second waist hole extending from the first end to the second end is provided on the push plate, and the second waist hole corresponds to at least one second connecting hole; the second threaded structure is provided in the second connecting hole and the second waist hole.

6. The circuit breaker closing device according to claim 5, characterized in that: The pushing assembly further comprises: A connecting block is provided at the driving end; The second connecting plate is arranged on the connecting block through a third threaded structure; a third waist hole is provided on the second connecting plate, and the extension direction of the third waist hole is perpendicular to the surface where the second insulating plate is located; a third connecting hole is opened on the connecting block to match the third waist hole, and the third threaded structure is arranged on the third waist hole and the third connecting hole.

7. The circuit breaker closing device according to claim 6, characterized in that: A limiting groove is provided on one side of the connecting block for connecting with the second connecting plate, and the second connecting plate is arranged in the limiting groove; an extending direction of the limiting groove is parallel to an extending direction of the third waist hole.

8. The circuit breaker closing device according to claim 5, characterized in that: The support plate is further provided with a plurality of fourth connection holes sequentially arranged along the direction from the first end to the second end; The pushing assembly also includes an auxiliary block, which is arranged on the support plate through a fourth threaded structure; the auxiliary block and the pushing plate are located on the same side of the support plate, and the auxiliary block is located on the side of the pushing plate close to the driving assembly; the auxiliary block is provided with a fourth waist hole extending in the direction from the first end to the second end, the fourth waist hole corresponds to at least one of the fourth connecting holes, and the fourth threaded structure is provided in the fourth connecting hole and the fourth waist hole.

9. The circuit breaker closing device according to claim 5, characterized in that: The pushing plate is an insulating plate.

10. The circuit breaker closing device according to claim 1, characterized in that: The pushing assembly includes a plurality of connection rows connected end to end in sequence, the plurality of connection rows are arranged along the direction from the first end to the second end, the plurality of connection rows form a connection row group, and the two ends of the connection row group are the first end and the second end.

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