Synchronous opening and closing device for multiple circuit breakers

Abstract

The utility model provides a simultaneous opening and closing device for multiple circuit breakers, and relates to the technical field of electrical equipment. The device mainly comprises a plurality of hand-operated covers, a first gear, a second gear and an operation handle, the plurality of hand-operated covers are arranged along a first direction, and each hand-operated cover is used for being connected to a circuit breaker; the number of the first gears is multiple, and each first gear is rotationally connected to one manual operation cover. The second gear is rotationally connected between the two adjacent manual operation covers and is meshed with the first gears on the two adjacent manual operation covers; the operation handle is coaxially connected with any first gear. According to the invention, the number of parts is reduced, so that the cost of the simultaneous opening and closing device for multiple circuit breakers is reduced, and the structural stability of the device is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electrical equipment, and in particular to a switching device for multiple circuit breakers. Background Art

[0002] The manual operating mechanism (abbreviated as manual operation) is a commonly used accessory in the field of low-voltage circuit breakers. The accessory can operate the circuit breaker by rotating the handle, so that the operation of the circuit breaker is not limited to the distance requirement.

[0003] In some cases, two or more circuit breakers need to be opened and closed at the same time. Since a manual operator can only control one circuit breaker, it is necessary to give the manual operator additional functions to achieve the requirement of controlling two or more circuit breakers at the same time.

[0004] The existing hand-operated splitting and combining device has a complex structure and too many parts, which increases the cost and instability of the device. Utility Model Content

[0005] In view of the above problems, an embodiment of the present application provides a switching device for multiple circuit breakers, which reduces the cost of the switching device for multiple circuit breakers by reducing the number of parts and improves the structural stability of the device.

[0006] An embodiment of the present application provides a common opening and closing device for multiple circuit breakers, including: a manual operating cover, a first gear, a second gear and an operating handle, wherein a plurality of manual operating covers are provided, and the plurality of manual operating covers are arranged along a first direction, and each manual operating cover is used to be connected to a circuit breaker; a plurality of first gears are provided, and each first gear is rotatably connected to a manual operating cover; the second gear is rotatably connected between two adjacent manual operating covers and meshes with the first gears on the two adjacent manual operating covers; and the operating handle is coaxially connected to any one of the first gears.

[0007] By adopting the above scheme, a person rotates the operating handle to drive the first gear connected to the operating handle to rotate, and the first gear drives the second gear meshing with it to rotate, and then drives another first gear meshing with the second gear to rotate, and finally realizes the synchronous rotation of multiple first gears. When the device is installed on multiple side-by-side circuit breakers, by connecting the operating mechanism of the circuit breaker with the first gear, the synchronous action of the operating mechanism of multiple circuit breakers can be realized, thereby realizing the synchronous opening and closing of multiple circuit breakers. The above-mentioned same opening and closing device realizes the same opening and closing of multiple circuit breakers through multiple gears. The gear transmission has the characteristics of stable structure, which is conducive to improving the reliability of controlling the opening and closing of multiple circuit breakers. The overall structural parts of the device are relatively few, and no mold is required, which reduces the manufacturing cost of parts and components, reduces the impact of the failure of any component on the overall device, and further improves the structural stability of the device.

[0008] In some embodiments, the same opening and closing device of multiple circuit breakers also includes a first transmission shaft, which is arranged between two adjacent manual operating covers, and the second gear is rotatably connected to the first transmission shaft, and two first connecting holes are arranged on the end face of the first transmission shaft; a second connecting hole is arranged on the manual operating cover, one first connecting hole is coaxially arranged with the second connecting hole on one manual operating cover, and the other first connecting hole is coaxially arranged with the second connecting hole on another adjacent manual operating cover, so that the connecting member passes through the second connecting hole and the first connecting hole to connect the first transmission shaft and the two adjacent manual operating covers.

[0009] By adopting the above scheme, the connecting member passes through the first connecting hole and the second connecting hole to connect the manual operation cover and the first transmission shaft. One transmission shaft is connected to two adjacent manual operation covers at the same time. When the two manual operation covers are fixed on the circuit breaker, the position of the first transmission shaft is fixed accordingly, thereby fixing the position of the second gear. When the second gear is fixed by the manual operation cover, the above fixing structure of the first transmission shaft and the manual operation cover is conducive to improving the installation structure stability of the first gear and the manual operation cover, thereby improving the transmission reliability of the first gear and the second gear.

[0010] In some embodiments, the two first connection holes are symmetrically arranged with a diameter on the end surface of the first transmission shaft as the symmetry axis; the second connection holes on two adjacent manual operation covers are at equal distances from the edges of the corresponding manual operation covers on one side close to each other.

[0011] By adopting the above solution, the two first connection holes on the first transmission shaft and the second connection holes on the two adjacent manual operation covers can be connected in any pairing manner without changing the position of the first transmission shaft, thereby simplifying the assembly method of the first transmission shaft and the two adjacent manual operation covers, which is conducive to improving the assembly efficiency of the device.

[0012] In some embodiments, two second connection holes are provided on the manual operation cover, and the two second connection holes are respectively arranged near the edges on both sides of the manual operation cover in the first direction, and the two second connection holes are symmetrically arranged with the central plane of the manual operation cover perpendicular to the first direction as the symmetry plane.

[0013] By adopting the above scheme, since each manual operation cover has two second connection holes, when multiple manual operation covers are arranged and installed, there is no specific order between the multiple manual operation covers, and they can be installed at will, and the first transmission shaft can be installed between any two manual operation covers. Since the two second connection holes on each manual operation cover are symmetrically arranged with the central plane of the manual operation cover perpendicular to the first direction as the symmetry plane, the distances between the two second connection holes and the edges of the corresponding sides of the manual operation cover are equal, and the installation direction and position of the first transmission shaft arranged between the manual operation covers will not change due to the different installation positions of the manual operation covers, that is, the installation position and direction of any manual operation cover and the first transmission shaft can be adjusted at will, which reduces the difficulty of assembling the same opening and closing devices of multiple circuit breakers and improves the assembly efficiency.

[0014] In some embodiments, a positioning boss is provided at the end of the first transmission shaft, and two sides of the positioning boss are respectively abutted against a manual operation cover.

[0015] By adopting the above scheme, when the manual operation cover is connected to the first transmission shaft, a positioning boss is provided to prevent the manual operation cover from rotating relative to the first transmission shaft, and both sides of the positioning boss are respectively abutted against a manual operation cover, thereby limiting the position of the manual operation cover, making it difficult for the manual operation cover to rotate relative to the first transmission shaft.

[0016] In some embodiments, a cylindrical boss is provided on the end face of the first transmission shaft away from the first connecting hole, and the second gear is sleeved on the cylindrical boss. A clamping screw is connected to the end face of the cylindrical boss, and a gasket is sleeved on the clamping screw. The gasket rests on the end face of the cylindrical boss to limit the position of the second gear along the thickness direction of the second gear; the height of the cylindrical boss is greater than the thickness of the second gear.

[0017] By setting the clamping screw and the gasket, the second gear is fixed and the displacement of the second gear in the thickness direction is limited. The height of the cylindrical boss is greater than the thickness of the second gear, so that the second gear will not be pressed on the cylindrical boss, and can rotate freely under the drive of the first gear.

[0018] In some embodiments, the hand-operated cover is rotatably connected to a second transmission shaft; a protrusion is provided on one side of the first gear, the protrusion is cylindrical, the protrusion is sleeved on the second transmission shaft, a third connecting hole is provided on the side wall of the protrusion, and the connecting member is connected to the second transmission shaft through the third connecting hole.

[0019] By adopting the above solution, the protruding portion is sleeved on the second transmission shaft, so that the first gear and the second transmission shaft are coaxially arranged. By arranging a third connecting hole on the side wall of the protruding portion, the connecting member can pass through the third connecting hole and be connected to the second transmission shaft, so that the first gear and the second transmission shaft are connected in a coaxial state.

[0020] In some embodiments, a first socket is provided on the first gear, a second socket is provided on the second transmission shaft, and the operating handle passes through the first socket and is plugged into the second socket.

[0021] By adopting the above solution, the operating handle is plugged into the second socket, so that when the operating handle rotates, the second transmission shaft can be driven to rotate, thereby achieving the effect of the operating handle driving the first gear to rotate.

[0022] In some embodiments, the cross-sectional shape of the second socket is polygonal, the portion of the operating handle used to plug into the second socket is prismatic, and the outer wall of the prismatic portion cooperates with the side wall of the second socket so that the operating handle drives the second transmission shaft to rotate.

[0023] By adopting the above solution, the operating handle only needs to be inserted into the second socket. When the operating handle rotates, the outer wall of the operating handle can contact the side walls of the second socket to drive the second transmission shaft to rotate, thereby achieving the effect of the operating handle driving the first gear to rotate. Therefore, there is no need to make an additional connection between the operating handle and the second transmission shaft. Even if the operating handle and the second transmission shaft are additionally connected, since the second socket and the surfaces of the prismatic part of the operating handle share the torsional force, the connection structure is not easily damaged due to stress concentration.

[0024] In some embodiments, the cross-sectional shape of the first insertion hole is the same as that of the second insertion hole, and the outer wall of the prismatic portion of the operating handle matches the side wall of the first insertion hole.

[0025] By adopting the above scheme, the outer wall of the prismatic part of the operating handle not only cooperates with the side wall of the second socket, but also cooperates with the side wall of the first socket. Therefore, the operating handle can directly drive the second transmission shaft and the first gear to rotate, eliminating the intermediate transmission process, so that the force on the connecting piece connected to the second transmission shaft through the third connecting hole is reduced, and the structural stability of the same-opening and closing devices of multiple circuit breakers and the reliability of the same-opening and closing performance are improved.

[0026] In summary, the embodiment of the present application is to connect the first gears by rotating them respectively on multiple hand-operated covers, connect the second gears between adjacent hand-operated covers, mesh the first gears with the second gears, and coaxially connect the operating handle with any one of the first gears, so that when a person rotates the operating handle, the first gear connected to the operating handle can be driven to rotate, thereby driving multiple second gears and the first gear to rotate synchronously. When the device is installed on multiple side-by-side circuit breakers, the operating mechanisms of multiple circuit breakers can be connected to the first gear to achieve synchronous action, thereby achieving synchronous opening and closing of multiple circuit breakers. The device as a whole has the advantages of fewer structural parts, no need for mold opening, low manufacturing cost, and high structural stability.

[0027] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic structural diagram of a plurality of circuit breaker switching devices provided in an embodiment of the present application installed on a combined circuit breaker.

[0030] Figure 2 It is a schematic diagram of the structure of the first gear.

[0031] Figure 3 Schematic diagram of the structure of the second gear.

[0032] Figure 4 It is a schematic structural diagram of one end of the second transmission shaft.

[0033] Figure 5 It is a structural schematic diagram of the assembly of the manual operating cover and the second transmission shaft.

[0034] Figure 6 It is a structural schematic diagram of the manual operation cover assembled with the first transmission shaft and the second transmission shaft.

[0035] Figure 7 It is a schematic diagram of the structure of the other end of the second transmission shaft.

[0036] Explanation of the accompanying drawings: 100, manual operation cover; 110, second connecting hole; 200, first gear; 210, protrusion; 220, third connecting hole; 230, first plug hole; 300, second gear; 400, operating handle; 500, first transmission shaft; 510, first connecting hole; 520, positioning boss; 530, cylindrical boss; 600, second transmission shaft; 610, second plug hole; 700, clamping screw; 800, gasket; 900, circuit breaker; X, first direction. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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.

[0039] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0040] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the same switching device of multiple circuit breakers in this application. For example, in the description of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 a limitation on this application.

[0043] In addition, the expressions of the indicating directions such as X direction, Y direction and Z direction used to illustrate the operation and construction of the various components of the same switching devices of multiple circuit breakers in this embodiment are not absolute but relative, and although these indications are appropriate when the various components of the same switching devices of multiple circuit breakers are in the positions shown in the figures, when these positions change, these directions should be interpreted differently to correspond to the changes.

[0044] In addition, the terms "first", "second", etc. in the specification 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 of the features.

[0045] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).

[0046] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection may also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. The "connection" or "connection" of a circuit structure may refer to an electrical connection or a signal connection in addition to a physical connection. For example, it may be a direct connection, that is, a physical connection, or it may be an indirect connection through at least one intermediate element, as long as the circuit is connected, or it may be the internal connection of two elements; the signal connection may refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present application provides a same-opening and closing device for multiple circuit breakers, the device comprising: a manual operating cover 100, a first gear 200, a second gear 300 and an operating handle 400, a plurality of manual operating covers 100 are provided, and the plurality of manual operating covers 100 are arranged along a first direction X, and each manual operating cover 100 is used to be connected to a circuit breaker 900; a plurality of first gears 200 are provided, and each first gear 200 is rotatably connected to a manual operating cover 100; the second gear 300 is rotatably connected between two adjacent manual operating covers 100, and meshes with the first gears 200 on the two adjacent manual operating covers 100; the operating handle 400 is coaxially connected to any one of the first gears 200.

[0048] The function of the manual operation cover 100 is to fix the first gear 200 and the second gear 300. When the manual operation cover 100 is fixed on the circuit breaker 900, the positions of the first gear 200 and the second gear 300 relative to the circuit breaker 900 can be fixed. During assembly, the manual operation cover 100 can be installed on the circuit breaker 900, and then the first gear 200, the second gear 300 and the operating handle 400 can be installed on the manual operation cover 100. Alternatively, the first gear 200, the second gear 300 and the operating handle 400 can be first installed on the manual operation cover 100, and then the manual operation cover 100 can be installed on the circuit breaker 900. As long as the relationship between the manual operation cover 100 and the first gear 200, the second gear 300 and the operating handle 400 meets the above structural limitations, and after the manual operation cover 100 is installed on the circuit breaker 900, the second gear 300 is coaxial with the part of the operating mechanism on the circuit breaker 900 that is exposed from the housing of the circuit breaker 900.

[0049] The first gear 200 is installed on the manual operation cover 100. The first gear 200 can be directly connected to the manual operation cover 100 for rotation, or a rotating shaft can be set on the manual operation cover 100, and then the first gear 200 is connected to the rotating shaft. The embodiment of the present application does not limit this.

[0050] The second gear 300 is installed between two adjacent manual operation covers 100. It can be connected to any one of the manual operation covers 100 or to both manual operation covers 100. When the first gear 200 is connected to both manual operation covers 100, the first gear 200 can also play a role in fixing the positions of the two manual operation covers 100.

[0051] The operating handle 400 is a handle structure for people to apply force to it. Exemplarily, the operating handle 400 can be "L" shaped, one end of the operating handle 400 is connected to the center of the first gear 200, and the other end is used for people to hold and apply force.

[0052] When the same opening and closing device is used to perform the same opening and closing control on multiple circuit breakers 900, the operator rotates the operating handle 400, which drives the first gear 200 connected to the operating handle 400 to rotate, and the first gear 200 drives the second gear 300 meshing with it to rotate, and then drives another first gear 200 meshing with the second gear 300 to rotate, finally realizing the synchronous rotation of multiple first gears 200.

[0053] When the device is installed on a plurality of circuit breakers 900 arranged side by side, by connecting the operating mechanism of the circuit breaker 900 to the first gear 200 , the operating mechanisms of the plurality of circuit breakers 900 can be synchronously moved, thereby achieving synchronous opening and closing of the plurality of circuit breakers 900 .

[0054] The above-mentioned simultaneous opening and closing device realizes the simultaneous opening and closing of multiple circuit breakers 900 through multiple gears. The gear transmission has the characteristic of stable structure, which is beneficial to improving the reliability of controlling the opening and closing of multiple circuit breakers 900. In addition, the overall structural parts of the device are relatively small, and no mold opening is required, which reduces the manufacturing cost of parts and components, reduces the impact of the failure of any component on the overall device, and further improves the structural stability of the simultaneous opening and closing device.

[0055] Please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6In some embodiments, the same opening and closing device for multiple circuit breakers further includes a first transmission shaft 500, the first transmission shaft 500 is arranged between two adjacent manual operation covers 100, the second gear 300 is rotatably connected to the first transmission shaft 500, and two first connecting holes 510 are arranged on the end surface of the first transmission shaft 500; the manual operation cover 100 is provided with a second connecting hole 110, one first connecting hole 510 is coaxially arranged with the second connecting hole 110 on one manual operation cover 100, and the other first connecting hole 510 is coaxially arranged with the second connecting hole 110 on another adjacent manual operation cover 100, so that the connecting member passes through the second connecting hole 110 and the first connecting hole 510 to connect the first transmission shaft 500 and the two adjacent manual operation covers 100.

[0056] In this embodiment, the second gear 300 is installed through the first transmission shaft 500. The second gear 300 is rotatably installed on the first transmission shaft 500. As long as the position of the first transmission shaft 500 is fixed, the position of the second gear 300 can be fixed.

[0057] The first transmission shaft 500 passes through the first connecting hole 510 and the second connecting hole 110 through a connecting piece and is connected to two adjacent manual operation covers 100, so that the first transmission shaft 500 can play a role in fixing the relative positions of the two manual operation covers 100. At the same time, when the two manual operation covers 100 are respectively fixed on the circuit breaker 900, the position of the first transmission shaft 500 is also fixed accordingly, thereby fixing the position of the second gear 300.

[0058] The connecting parts can be any common standard bolt parts, standard screw parts, etc., so that they are easy to obtain and reduce the assembly cost of the device.

[0059] When the second gear 300 is fixed by the manual operation cover 100, the above-mentioned connection structure between the first transmission shaft 500 and the manual operation cover 100 is beneficial to improving the installation structure stability of the first gear 200 and the manual operation cover 100, thereby improving the transmission reliability of the first gear 200 and the second gear 300.

[0060] Please refer to Figure 4 and Figure 5 In some embodiments, the two first connection holes 510 are symmetrically arranged with a diameter on the end surface of the first transmission shaft 500 as the symmetry axis; the second connection holes 110 on two adjacent manual operation covers 100 are equidistant from the edges of the corresponding manual operation covers 100 on one side thereof.

[0061] The two first connection holes 510 are symmetrically arranged with a diameter on the end face of the first transmission shaft 500 as the symmetry axis, that is, the two first connection holes 510 are equidistant from the center of the end face of the first transmission shaft 500, and the line between the two first connection holes 510 is perpendicular to the symmetry axis.

[0062] The manual operation cover 100 corresponding to the second connection hole 110 refers to the manual operation cover 100 where the second connection hole 110 is located. Exemplarily, when a plurality of manual operation covers 100 are arranged side by side in the left-right direction, of two adjacent manual operation covers 100, the distance between the second connection hole 110 on the left manual operation cover 100 and the right edge of the manual operation cover 100 is equal to the distance between the second connection hole 110 on the right manual operation cover 100 and the left edge of the manual operation cover 100.

[0063] During assembly, the symmetry axes of the two first connection holes 510 can be located between two adjacent manual operation covers 100 , and the two first connection holes 510 are respectively opposite to the second connection holes 110 on one manual operation cover 100 .

[0064] Since the two first connecting holes 510 are at equal distances from the center of the end face of the first transmission shaft 500 and are symmetrically positioned, and the second connecting holes 110 on two adjacent manual operation covers 100 are at equal distances from the edges of the corresponding manual operation covers 100 that are close to each other, no matter how the first transmission shaft 500 is set, the two first connecting holes 510 on the first transmission shaft 500 and the second connecting holes 110 on the two adjacent manual operation covers 100 can be connected in any pairing manner without changing the position of the central axis of the first transmission shaft 500, thereby making the assembly method of the first transmission shaft 500 and the two adjacent manual operation covers 100 simpler, which is beneficial to improving the assembly efficiency of the device.

[0065] When the position of the center axis of the first transmission shaft 500 does not change due to the different pairing methods of the first connecting hole 510 and the second connecting hole 110, the position of the second gear 300 will not change either, so that the second gear 300 can always mesh with the first gear 200 to reliably drive the first gear 200 to rotate.

[0066] like Figure 5 As shown, in some embodiments, two second connection holes 110 are provided on the manual operation cover 100, and the two second connection holes 110 are respectively arranged near the edges on both sides of the manual operation cover 100 in the first direction X, and the two second connection holes 110 are symmetrically arranged with the central plane of the manual operation cover 100 perpendicular to the first direction X as the symmetry plane.

[0067] Taking the first direction X as the left-right direction as an example, the two second connection holes 110 are respectively close to the left edge and the right edge of the manual operation cover 100 .

[0068] Since two second connection holes 110 are provided on the manual operation cover 100, and the two second connection holes 110 are respectively arranged close to the edges on both sides of the manual operation cover 100 in the first direction X, when a plurality of manual operation covers 100 are arranged and installed along the first direction X, there is no specific order between the plurality of manual operation covers 100, and they can be installed at will, and the first transmission shaft 500 can be installed between any two manual operation covers 100.

[0069] The central plane of the manual operation cover 100 is a plane of the manual operation cover 100 that is perpendicular to the left-right direction and divides the manual operation cover 100 into a left half and a right half.

[0070] When the two second connection holes 110 are symmetrically arranged with the central plane of the manual operation cover 100 perpendicular to the first direction X as the symmetry plane, the distances between the two second connection holes 110 and the two side edges of the manual operation cover 100 are equal. Therefore, the installation direction and position of the first transmission shaft 500 arranged between the manual operation covers 100 will not change due to the different installation positions of the manual operation covers 100, that is, the installation position and direction of any manual operation cover 100 and the first transmission shaft 500 can be adjusted at will, reducing the difficulty of assembling the same opening and closing devices of multiple circuit breakers 900 and improving the assembly efficiency.

[0071] like Figure 4 As shown, in some embodiments, a positioning boss 520 is provided at the end of the first transmission shaft 500 , and two sides of the positioning boss 520 are respectively in contact with a manual operation cover 100 .

[0072] Both sides of the positioning boss 520 abut against a manual operation cover 100 respectively, thereby limiting the positions of the two manual operation covers 100, so that when the manual operation cover 100 is connected to the first transmission shaft 500, it is not easy to rotate relative to the first transmission shaft 500.

[0073] like Figure 1 , Figure 6 and Figure 7 As shown, in some embodiments, a cylindrical boss 530 is provided on the end face of the first transmission shaft 500 away from the first connecting hole 510, and the second gear 300 is sleeved on the cylindrical boss 530. A clamping screw 700 is connected to the end face of the cylindrical boss 530, and a gasket 800 is sleeved on the clamping screw 700. The gasket 800 abuts against the end face of the cylindrical boss 530 to limit the position of the second gear 300 along the thickness direction of the second gear 300; the height of the cylindrical boss 530 is greater than the thickness of the second gear 300.

[0074] The cylindrical boss 530 can fix the second gear 300 so that the second gear 300 rotates around the cylindrical boss 530 without positional deviation.

[0075] The clamping screw 700 is a common standard screw, and the gasket 800 is a standard flat gasket 800 or a non-standard annular gasket 800 structure.

[0076] By providing the clamping screw 700 and the gasket 800 , the second gear 300 is fixed and the displacement of the second gear 300 in the thickness direction is limited.

[0077] The height of the cylindrical boss 530 is greater than the thickness of the second gear 300 , so that the second gear 300 will not be pressed on the cylindrical boss 530 , and can rotate freely under the drive of the first gear 200 .

[0078] Optionally, the height of the cylindrical boss 530 is 0.2-3 mm greater than the thickness of the second gear 300 .

[0079] If the height of the cylindrical boss 530 is much greater than the thickness of the second gear 300, the second gear 300 may be offset in the thickness direction during rotation, affecting the smooth rotation of the second gear 300; if the height of the cylindrical boss 530 is much less than the thickness of the second gear 300, the rotation of the second gear 300 may be hindered to a certain extent, affecting the transmission smoothness between the first gear 200 and the second gear 300, and increasing the wear rate of the second gear 300 during rotation.

[0080] The height of the cylindrical boss 530 is 0.2-3 mm greater than the thickness of the second gear 300 , thereby reducing the wear of the second gear 300 while ensuring the smooth rotation of the second gear 300 .

[0081] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in some embodiments, the manual operation cover 100 is rotatably connected to the second transmission shaft 600; a protrusion 210 is provided on one side of the first gear 200, and the protrusion 210 is cylindrical. The protrusion 210 is sleeved on the second transmission shaft 600, and a third connecting hole 220 is provided on the side wall of the protrusion 210. The connecting member passes through the third connecting hole 220 and is connected to the second transmission shaft 600.

[0082] The protruding portion 210 is sleeved on the second transmission shaft 600 , thereby achieving a coaxial arrangement of the first gear 200 and the second transmission shaft 600 .

[0083] The connecting parts can be any common standard bolt parts, standard screw parts, etc., so that they are easy to obtain and reduce the assembly cost of the device.

[0084] The second transmission shaft 600 may or may not be provided with a screw hole. In the case where the second transmission shaft 600 is not provided with a screw hole, the third connection hole 220 is a threaded through hole, and the connecting member passes through the third connection hole 220 and abuts against the second transmission shaft 600, so that the second transmission shaft 600 can rotate synchronously with the first gear 200. In the case where the second transmission shaft 600 is provided with a screw hole, the third connection hole 220 is a threaded through hole, and the connecting member passes through the third connection hole 220 and is connected to the threaded hole on the second transmission shaft 600, so that the second transmission shaft 600 can rotate synchronously with the first gear 200.

[0085] It can be seen that by providing the third connecting hole 220 on the side wall of the protrusion 210, the connecting member can pass through the third connecting hole 220 and be connected to the second transmission shaft 600, thereby realizing the connection between the first gear 200 and the second transmission shaft 600 in a coaxial state.

[0086] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in some embodiments, a first plug hole 230 is provided on the first gear 200 , a second plug hole 610 is provided on the second transmission shaft 600 , and the operating handle 400 passes through the first plug hole 230 and is plug-connected with the second plug hole 610 .

[0087] The axial projection of the second plug hole 610 can be completely within the first plug hole 230 , or can be flush with the edge of the first plug hole 230 , so as to facilitate the operation handle 400 to be plugged into the second plug hole 610 after passing through the first plug hole 230 .

[0088] After the operating handle 400 is plugged into the second socket 610, the second transmission shaft 600 and the first gear 200 need to be rotated by rotating the operating handle 400. Therefore, the operating handle 400 needs to be initially fixed to the second transmission shaft 600 so that the second transmission shaft 600 can rotate with the rotation of the operating handle 400.

[0089] To this end, the operating handle 400 and the second transmission shaft 600 may be preliminarily fixed in the following manner:

[0090] In the first embodiment, the operating handle 400 and the second plug hole 610 are interference fit, so that the operating handle 400 and the second plug hole 610 are relatively fixed, and the second transmission shaft 600 can rotate synchronously with the operating handle 400 .

[0091] like Figure 1 , Figure 5 and Figure 6As shown, in the second embodiment, the cross-sectional shape of the second socket 610 is polygonal, the portion of the operating handle 400 used to be plugged into the second socket 610 is prism-shaped, and the outer wall of the prism-shaped portion cooperates with the side wall of the second socket 610, so that the operating handle 400 and the second socket 610 are relatively fixed, and the second transmission shaft 600 can rotate synchronously with the operating handle 400.

[0092] In the third embodiment, a limiting protrusion is provided on the inner wall of the second socket 610, and a limiting groove is provided on the operating handle 400. After the operating handle 400 is plugged into the second socket 610, the limiting protrusion is located in the limiting groove, so that the second transmission shaft 600 can rotate synchronously with the operating handle 400.

[0093] In the above three embodiments, the operating handle 400 and the second transmission shaft 600 are plug-in connected. The operating handle 400 is plug-in connected to the second socket 610, so that when the operating handle 400 rotates, the second transmission shaft 600 can be driven to rotate, thereby achieving the effect of the operating handle 400 driving the first gear 200 to rotate.

[0094] When in use, the operating handle 400 only needs to be inserted into the second plug hole 610 , and there is no need to make additional connections between the operating handle 400 and the second transmission shaft 600 . This makes the use of the split-and-close device even simpler.

[0095] Among them, in the above-mentioned second embodiment, when the operating handle 400 rotates, the outer wall of the operating handle 400 can contact each side wall of the second plug hole 610 to drive the second transmission shaft 600 to rotate, thereby achieving the effect that the operating handle 400 drives the first gear 200 to rotate. Therefore, even if the operating handle 400 and the second transmission shaft 600 are additionally connected, since the second plug hole 610 and each surface of the prismatic part of the operating handle 400 share the torsional force, the connection structure is not easily damaged due to stress concentration.

[0096] On the basis of the above second embodiment, in some embodiments, the cross-sectional shape of the first socket 230 is the same as that of the second socket 610 , and the outer wall of the prismatic portion of the operating handle 400 matches the side wall of the first socket 230 .

[0097] By adopting the above scheme, the outer wall of the prismatic part of the operating handle 400 not only cooperates with the side wall of the second hole 610, but also cooperates with the side wall of the first hole 230. Therefore, the operating handle 400 can directly drive the second transmission shaft 600 and the first gear 200 to rotate, eliminating the intermediate transmission process, thereby reducing the force on the connecting piece connected to the second transmission shaft 600 through the third connecting hole, and improving the structural stability of the same separation and combination device of multiple circuit breakers 900 and the reliability of the same separation and combination performance.

[0098] In any of the three embodiments described above, a threaded hole can be set on the second transmission shaft 600, and the threaded hole connects the outer periphery of the second transmission shaft 600 and the second plug hole 610. After the connecting piece passes through the third connecting hole, it passes through the threaded hole on the second transmission shaft 600 and rests on the operating handle 400, thereby further fixing the operating handle 400 and the second connecting shaft.

[0099] In summary, the embodiment of the present application is to respectively connect the first gear 200 on the plurality of manual operation covers 100, connect the second gear 300 between the adjacent manual operation covers 100, mesh the first gear 200 with the second gear 300, and coaxially connect the operating handle 400 with any one of the first gears 200, so that when a person rotates the operating handle 400, the first gear 200 connected to the operating handle 400 can be driven to rotate, thereby driving the plurality of second gears 300 and the first gear 200 to rotate synchronously. When the device is installed on a plurality of side-by-side circuit breakers 900, by connecting the operating mechanism of the circuit breaker 900 with the first gear 200, the synchronous action of the operating mechanisms of the plurality of circuit breakers 900 can be realized, thereby realizing the synchronous opening and closing of the plurality of circuit breakers 900. The device as a whole has the beneficial effects of fewer structural parts, no need for mold opening, low manufacturing cost, and high structural stability.

[0100] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0101] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for simultaneously opening and closing multiple circuit breakers, characterized in that: include: A manual operation cover, wherein a plurality of the manual operation covers are arranged along a first direction, and each of the manual operation covers is used to be connected to a circuit breaker; A plurality of first gears are provided, each of which is rotatably connected to one of the hand-operated covers; A second gear is rotatably connected between two adjacent hand-operated covers and meshes with the first gears on the two adjacent hand-operated covers; An operating handle is coaxially connected to any one of the first gears.

2. The same switching device for multiple circuit breakers according to claim 1, characterized in that: It also includes a first transmission shaft, the first transmission shaft is arranged between two adjacent hand-operated covers, the second gear is rotatably connected to the first transmission shaft, and two first connecting holes are arranged on the end surface of the first transmission shaft; The manual operation cover is provided with a second connecting hole, one of the first connecting holes is coaxially arranged with the second connecting hole on one of the manual operation covers, and another of the first connecting holes is coaxially arranged with the second connecting hole on another adjacent manual operation cover, so that the connecting member passes through the second connecting hole and the first connecting hole to connect the first transmission shaft and the two adjacent manual operation covers.

3. The same switching device for multiple circuit breakers according to claim 2, characterized in that: The two first connection holes are symmetrically arranged with a diameter on the end surface of the first transmission shaft as a symmetry axis; the second connection holes on two adjacent manual operation covers are equidistant from the edges of the corresponding manual operation covers on one side close to each other.

4. The same switching device for multiple circuit breakers according to claim 2, characterized in that: The manual operation cover is provided with two second connection holes, which are respectively arranged near the edges on both sides of the manual operation cover in the first direction, and are symmetrically arranged with the central plane of the manual operation cover perpendicular to the first direction as the symmetry plane.

5. The same switching device for multiple circuit breakers according to claim 2, characterized in that: A positioning boss is provided at the end of the first transmission shaft, and two sides of the positioning boss are respectively in contact with one of the hand-operated covers.

6. The same switching device for multiple circuit breakers according to claim 2, characterized in that: A cylindrical boss is provided on the end surface of the first transmission shaft away from the first connecting hole, the second gear is sleeved on the cylindrical boss, a clamping screw is connected to the end surface of the cylindrical boss, a gasket is sleeved on the clamping screw, and the gasket abuts against the end surface of the cylindrical boss to limit the position of the second gear along the thickness direction of the second gear; The height of the cylindrical boss is greater than the thickness of the second gear.

7. The same switching device for multiple circuit breakers according to any one of claims 1 to 6, characterized in that: The hand-operated cover is rotatably connected to a second transmission shaft; a protrusion is provided on one side of the first gear, the protrusion is cylindrical, the protrusion is sleeved on the second transmission shaft, a third connecting hole is provided on the side wall of the protrusion, and a connecting member is connected to the second transmission shaft through the third connecting hole.

8. The same switching device for multiple circuit breakers according to claim 7, characterized in that: The first gear is provided with a first plug hole, the second transmission shaft is provided with a second plug hole, and the operating handle passes through the first plug hole and is plug-connected with the second plug hole.

9. The same switching device for multiple circuit breakers according to claim 8, characterized in that: The cross-sectional shape of the second socket is polygonal, the portion of the operating handle used to be plugged into the second socket is prism-shaped, and the outer wall of the prism-shaped portion cooperates with the side wall of the second socket so that the operating handle drives the second transmission shaft to rotate.

10. The same switching device for multiple circuit breakers according to claim 9, characterized in that: The cross-sectional shape of the first insertion hole is the same as that of the second insertion hole, and the outer wall of the prismatic portion of the operating handle matches the side wall of the first insertion hole.

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