Earthing switch and its operating mechanism

Abstract

The present disclosure discloses a grounding switch and its operating mechanism. The grounding switch includes an operating mechanism for the grounding switch. The operating mechanism of the grounding switch includes a drive module, a first transmission module, an input shaft, a second transmission module, an output shaft module, an upper mounting plate, a lower mounting plate, and an auxiliary switch module. The first transmission module is in transmission connection with the drive module, the input shaft is in transmission connection with the first transmission module, the second transmission module is mounted on the input shaft, and the output shaft module rotates under the drive of the second transmission module. The drive module and the first transmission module are mounted on the upper mounting plate, and the output shaft module is mounted on the lower mounting plate. The second transmission module is located between the upper mounting plate and the lower mounting plate and above the output shaft module. The input shaft passes through the upper mounting plate and protrudes downward for the installation of the second transmission module. The auxiliary switch module is mounted on the upper mounting plate. The grounding switch and its operating mechanism disclosed in the present disclosure are small in size and low in cost.

Description

Technical Field

[0001] The present disclosure relates to power transmission and distribution equipment in an electric power system, and in particular to a grounding switch and an operating mechanism thereof. Background Art

[0002] Grounding switches can be divided into fast-acting and slow-acting types. Fast-acting grounding switches enable rapid grounding of busbars or cables. Typically located on the line side of the outgoing disconnector, they quickly ground the main circuit, interrupting fault currents with the circuit breaker and protecting the entire substation.

[0003] The operating mechanism of a fast earthing switch is a core component of a high-voltage switch. However, most traditional operating mechanisms use a screw-slider solution, which is bulky and expensive. Summary of the Invention

[0004] In order to solve the problems of large size and high cost of an operating mechanism of a grounding switch in the conventional technology, the present disclosure provides a grounding switch and an operating mechanism thereof that can reduce size and cost.

[0005] The present disclosure provides an operating mechanism for a grounding switch, comprising:

[0006] Driver module;

[0007] A first transmission module is connected to the driving module and rotates under the drive of the driving module;

[0008] an input shaft, drivingly connected to the first transmission module and rotating under the drive of the first transmission module;

[0009] A second transmission module is installed on the input shaft and realizes transmission under the drive of the input shaft;

[0010] The output shaft module is driven by the second transmission module to rotate;

[0011] an upper mounting plate, on which the drive module and the first transmission module are mounted;

[0012] a lower mounting plate, the output shaft module is mounted on the lower mounting plate, the second transmission module is located between the upper mounting plate and the lower mounting plate and above the output shaft module, the input shaft passes through the upper mounting plate and protrudes downward for mounting the second transmission module;

[0013] The auxiliary switch module is mounted on the upper mounting plate.

[0014] Furthermore, the output shaft module includes an output shaft, crank arms installed on both sides of the output shaft, and a first transmission pin and a second transmission pin respectively provided on the crank arms on both sides;

[0015] The second transmission module is connected to the first transmission pin shaft. When the second transmission module rotates, it drives the first transmission pin shaft to rotate, and further drives the output shaft to rotate.

[0016] Furthermore, the operating mechanism also includes an energy storage elastic member, the head end of the energy storage elastic member is fixed to the lower mounting plate, and the tail end is fixed to the first transmission pin shaft. The tail end of the energy storage elastic member moves with the movement of the first transmission pin shaft, so that the energy storage elastic member is compressed and stores energy when pushed. In the process of restoring to its original state and releasing energy, the energy storage elastic member can push the first transmission pin shaft to move.

[0017] Furthermore, the second transmission module includes a sector plate, one end of the sector plate where the center of the sector plate is located is fixed to the input shaft, and an arcuate groove is formed in an area of ​​the sector plate near the arcuate edge, and the first transmission pin shaft extends into the arcuate groove and is capable of moving within the arcuate groove;

[0018] When the operating mechanism performs a closing operation, the energy storage elastic member releases energy, pushing the first transmission pin shaft to move quickly in the arc-shaped groove, thereby achieving rapid closing. When the operating mechanism performs an opening operation, the fan-shaped plate overcomes the resistance generated by the energy storage elastic member, and then drives the first transmission pin shaft to rotate, thereby driving the output shaft to rotate, thereby achieving slow opening.

[0019] Furthermore, the arc profile of the arc-shaped groove is the same as the profile of the arc edge of the sector plate.

[0020] Furthermore, the crank arm has a double-layer structure, a buffer roller is sleeved on the second transmission pin shaft, and the buffer roller is located between the upper layer and the lower layer of the crank arm, and the operating mechanism further includes:

[0021] a limit rod, disposed between the upper mounting plate and the lower mounting plate and located on a path through which the crank arm passes; at the end of the opening operation of the operating mechanism, the crank arm collides with the limit rod, forcing the output shaft to reduce its rotational speed and stop at a predetermined position;

[0022] The buffer module is fixed on the lower mounting plate and is located on the path passed by the buffer roller. At the end of the closing operation of the operating mechanism, the buffer roller rubs against the buffer module, forcing the rotation speed of the output shaft to gradually decrease and stop at a predetermined position.

[0023] Furthermore, the buffer module includes a buffer cap, a buffer head, and a buffer connected to the buffer head; at the end of the closing operation of the operating mechanism, the buffer roller rubs against the buffer cap, the buffer head, and the buffer in sequence.

[0024] Furthermore, the buffer is provided with a buffer seat and fixing nuts located on both sides of the buffer seat for fixing the buffer seat. The buffer seat can be positioned at different positions on the buffer under the adjustment of the fixing nuts to adjust the friction stroke between the buffer roller and the buffer.

[0025] Furthermore, the upper mounting plate is provided with a first groove, and the top end of the first transmission pin passes through the first groove and out of the upper mounting plate;

[0026] A bevel gear fork module is provided on the upper mounting plate, and the bevel gear fork module includes a shift fork, a bevel transmission shaft and a bevel gear, one end of the shift fork is fixedly connected to the top end of the first transmission pin shaft, and the other end of the shift fork is fixed to the bevel transmission shaft, one end of the shift fork moves with the movement of the first transmission pin shaft, and the other end of the shift fork pushes the bevel transmission shaft to rotate, and the bevel transmission shaft drives the bevel gear to rotate;

[0027] The auxiliary switch module includes at least one auxiliary switch body and at least one auxiliary switch rotating shaft arranged in the middle of the auxiliary switch body axis. Another bevel gear is provided at the end of the auxiliary switch rotating shaft. The bevel gear on the auxiliary switch rotating shaft is engaged with the bevel gear of the bevel gear fork module, driving the auxiliary switch rotating shaft to rotate, thereby realizing the on and off of the corresponding switch on the auxiliary switch body.

[0028] Furthermore, the auxiliary switch module includes a plurality of auxiliary switch bodies, and an auxiliary switch shaft is correspondingly provided at the axial center of each auxiliary switch body, wherein a bevel gear is provided at the end of one of the auxiliary switch shafts, and the auxiliary switch provided with the bevel gear drives the remaining auxiliary switch shafts to rotate through a connecting rod structure.

[0029] Furthermore, the auxiliary switch module further includes an indicator plate, which is provided at the other end of the auxiliary switch shaft where the bevel gear is provided, and the indicator plate rotates with the rotation of the auxiliary switch shaft.

[0030] Furthermore, a second groove is formed on the upper mounting plate, and the top end of the second transmission pin passes through the second groove and out of the upper mounting plate;

[0031] A micro switch is respectively provided at both ends of the second groove, and the pressing piece of the micro switch at one end presses the top end of the second transmission pin shaft. When the micro switch pressing the second transmission pin shaft is pressed, the second transmission pin shaft disengages from the pressing piece of the micro switch and slides to the other end of the second groove. When the second transmission pin shaft reaches the other end of the second groove, it is touched by another micro switch and rebounds back to its original position, and is pressed by the pressing piece of the micro switch at the original end again, thereby triggering the micro switch at the original end to generate an electric pulse.

[0032] Furthermore, the output shaft is coaxially arranged with the input shaft, and the output shaft and the input shaft are connected via a bearing.

[0033] Furthermore, the driving module includes a motor and an output gear, and the motor drives the output gear to rotate;

[0034] The first transmission module includes a transmission shaft, a first gear arranged on the transmission shaft and meshing with the output gear, a second gear arranged on the transmission shaft, and a third gear meshing with the second gear, the third gear being arranged on the input shaft, the motor drives the output gear to rotate, the output gear drives the first gear to rotate, the first gear drives the transmission shaft to rotate, the transmission shaft drives the second gear to rotate, the second gear drives the third gear to rotate, and the third gear drives the input shaft to rotate.

[0035] Furthermore, the transmission shaft is perpendicular to the upper mounting plate, the first gear is arranged on the upper half of the transmission shaft to be flush with and meshed with the output gear, and the second gear is arranged on the lower half of the transmission shaft to be flush with and meshed with the third gear;

[0036] The top end of the transmission shaft is provided with an extension, which is a hexagonal shaft. When the motor is not powered, a special operating handle is used in conjunction with the extension to drive the transmission shaft to rotate, causing the first transmission module and the second transmission module to rotate, thereby realizing the rotation of the output shaft module.

[0037] The present disclosure further provides a grounding switch, characterized in that it includes a housing, a grounding switch body disposed in the housing, and the operating mechanism of the grounding switch, wherein an output shaft module of the operating mechanism is connected to the grounding switch body.

[0038] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0039] The operating mechanism of the grounding switch disclosed herein utilizes a drive module, a first transmission module, and an auxiliary switch module mounted on an upper mounting plate, and an output shaft module mounted on a lower mounting plate. This results in a compact layout and high space utilization, significantly reducing the size of the operating mechanism, facilitating product miniaturization and meeting the needs of the development of miniaturized modern high-voltage power distribution equipment, while also reducing costs. Furthermore, the output shaft module rotates through a transmission connection between the drive module and the first transmission module, which in turn is connected to the input shaft, the second transmission module is connected to the input shaft, and the second transmission module is connected to the output shaft module, thereby enabling the closing and opening of the grounding switch.

[0040] The grounding switch disclosed in the present invention comprises a housing, a grounding switch body disposed in the housing, and the aforementioned operating mechanism, wherein an output shaft module of the operating mechanism is connected to the grounding switch body. The grounding switch is provided with the aforementioned operating mechanism, thereby reducing volume and cost.

[0041] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0043] Figure 1 Schematic diagram of the three-dimensional structure of the grounding switch disclosed in the present invention.

[0044] Figure 2 It is a schematic diagram of the three-dimensional structure of the operating mechanism disclosed in the present invention.

[0045] Figure 3 for Figure 2 Schematic side view of .

[0046] Figure 4 It is a cross-sectional schematic diagram of the drive module and the first transmission module disclosed in the present invention.

[0047] Figure 5 This is a structural schematic diagram of the energy storage elastic member, output shaft module and second transmission module disclosed in the present invention located on the lower mounting plate.

[0048] Figure 6 It is a schematic diagram of the three-dimensional structure of the output shaft module disclosed in the present invention.

[0049] Figure 7 This is a schematic structural diagram of the buffer module disclosed herein.

[0050] Figure 8 This is a schematic structural diagram of the connection between the upper mounting plate and the output shaft module disclosed in the present invention.

[0051] Figure 9 Schematic diagram of the top view of the operating mechanism of the present invention.

[0052] Figure 10 This is a schematic structural diagram of the auxiliary switch module disclosed in the present invention. DETAILED DESCRIPTION

[0053] In order to further illustrate the principle and structure of the present invention, preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0054] like Figure 1 Figure 1 is a schematic diagram of the three-dimensional structure of the grounding switch disclosed herein. The grounding switch 1 comprises an operating mechanism 100, a housing 200, and a grounding switch body (not shown). Both the operating mechanism 100 and the grounding switch body are mounted within the housing 200. The output shaft module of the operating mechanism 100 connects to the axial hole of the grounding switch body to drive the grounding contacts within the grounding switch body, thereby closing or opening the grounding switch.

[0055] like Figure 2 and Figure 3 As shown, Figure 2 is a schematic diagram of the three-dimensional structure of the operating mechanism disclosed herein, Figure 3 for Figure 2 Schematic side view of the grounding switch. The operating mechanism 100 of the grounding switch includes a drive module 10, a first transmission module 20, a second transmission module 30, an output shaft module 40, an input shaft 50, an upper mounting plate 61, a lower mounting plate 62, and an auxiliary switch module 70. The drive module 10, the first transmission module 20, and the auxiliary switch module 70 are mounted on the upper mounting plate 61. The output shaft module 40 is mounted on the lower mounting plate 62. The input shaft 50 is arranged perpendicular to the upper mounting plate 61 and passes through the upper mounting plate 61 and protrudes downward, so that the second transmission module 30 can be mounted on the downwardly protruding portion of the input shaft 50. The input shaft 50 is connected to the output shaft module 40 via a bearing. The second transmission module 30 is located between the upper mounting plate 61 and the lower mounting plate 62, and the second transmission module 30 is located above the output shaft module 40. The drive module 10 is in transmission connection with the first transmission module 20, which is in transmission connection with the input shaft 50. The second transmission module 30 is also connected to the input shaft 50, and the second transmission module 30 is in transmission connection with the output shaft module 40. When the drive module 10 is activated, the drive module 10 drives the first transmission module 20 to rotate, which in turn drives the input shaft 50, which in turn drives the second transmission module 30, which in turn drives the output module 40, thereby driving the grounding contacts of the grounding switch body to move, thereby opening or closing the grounding switch body. The auxiliary switch shaft of the auxiliary switch module 70 is in transmission connection with the output shaft module 40 and rotates driven by the output shaft module 40, thereby turning the auxiliary switch on and off.

[0056] The present disclosure achieves a compact structure and high space utilization by mounting the drive module 10, the first transmission module 20, and the auxiliary switch module on the upper mounting plate 61 and the output shaft module 40 on the lower mounting plate 62. This significantly reduces the size of the operating mechanism 100, facilitates product miniaturization, and meets the needs of the development of miniaturized modern high-voltage power distribution equipment, thereby reducing costs. Simultaneously, the drive module 10 is connected to the first transmission module 20 in a transmission connection, the first transmission module 20 is connected to the input shaft 50 in a transmission connection, the second transmission module 30 is connected to the input shaft 50, and the second transmission module 30 is connected to the output shaft module 40 in a transmission connection, thereby achieving the rotation of the output shaft module 40 and thereby achieving the closing and opening of the grounding switch body.

[0057] Combine Figure 2 As shown, the drive module 10 includes a motor 11 and an output gear 12. The motor 11 is installed between an upper clamping plate 13 and a lower clamping plate 14. The lower clamping plate 14 is installed on the upper mounting plate 61. The upper clamping plate 13 and the lower clamping plate 14 are fixed by connecting parts such as screws or bolts. The output shaft 111 of the motor 11 is placed upward and one end of the output shaft 111 protrudes from the upper clamping plate 111 through a through-hole on the upper clamping plate 13. The output gear 12 is installed on the output shaft 111 of the motor 11. More specifically, the output gear 12 is installed on the portion of the output shaft 111 that protrudes from the upper clamping plate 13. When the motor 11 rotates, the output gear 12 is driven to rotate.

[0058] Combine Figure 4 , which is a cross-sectional schematic diagram of the drive module and first transmission module of the present disclosure. The first transmission module 20 includes a transmission shaft 21, a first gear 22 disposed on the transmission shaft 21 and meshing with the output gear 12, a second gear 23 disposed on the transmission shaft 21, and a third gear 24 meshing with the second gear 23. The third gear 24 is disposed on the input shaft 50. The motor 11 drives the output gear 12 to rotate, the output gear 12 drives the first gear 22 to rotate, the first gear 22 drives the transmission shaft 21 to rotate, the transmission shaft 21 drives the second gear 23 to rotate, the second gear 23 drives the third gear 24 to rotate, and the third gear 24 drives the input shaft 50 to rotate.

[0059] The transmission shaft 21 is vertically mounted on the lower clamping plate 13 of the drive module 10 and is close to the motor 11. The first gear 22 is provided on the upper half of the transmission shaft 21, and the second gear 23 is provided on the lower half of the transmission shaft 21, so that the first gear 22 is flush with the output gear 12, and the second gear 23 is flush with the third gear 24. This allows the first gear 22 to mesh with the output gear 12, and the second gear 23 to mesh with the third gear 24, thus achieving transmission between the gears.

[0060] The top of the transmission shaft 21 is provided with an extension 211, which is a hexagonal shaft. When the motor 11 is not powered, a special operating handle can be used in conjunction with the extension 211 to drive the transmission shaft 21 to rotate, causing the first transmission module 20 and the second transmission module 20 to rotate, thereby realizing the rotation of the output shaft module 40, and further realizing manual closing or manual opening of the grounding body switch.

[0061] like Figure 5 As shown, it is a schematic structural diagram of the energy storage elastic member, output shaft module and second transmission module of the present invention located on the lower mounting plate. The second transmission module 30 is mounted on the input shaft 50. The second transmission module 30 includes a fan-shaped plate 31. The end of the fan-shaped plate 31 where the center of the circle is located (i.e., the end with a smaller area) is fixed to the input shaft 50. An arc-shaped groove 312 is provided in the area of ​​the fan-shaped plate 31 close to the arc edge 311. The arc profile of the arc-shaped groove 312 is the same as the profile of the arc edge 311 of the fan-shaped plate 31. In other words, the arc of the arc-shaped groove 312 extending along the extension direction of the arc edge 311 is parallel to the arc of the arc edge 311, so that the components therein can slide smoothly.

[0062] Combine Figure 6 , which is a schematic diagram of the three-dimensional structure of the output shaft module of the present disclosure. The output shaft module 40 includes an output shaft 41, crank arms 42 mounted on either side of the output shaft 41, and a first transmission pin 431 and a second transmission pin 432, respectively, disposed on the crank arms 42. The output shaft 41 is coaxial with the input shaft 50, and the upper end of the output shaft 41 is connected to the input shaft 50 via a bearing. The lower end of the output shaft 41 extends through the lower mounting plate 62 to connect to the grounding switch body.

[0063] The crank arm 42 extends from the outside of the output shaft 41 to both sides. The crank arm 42 has a double-layer structure, and the crank arms 42 on the same layer are located on the same straight line, and the layers are parallel to each other. The first transmission pin 431 and the second transmission pin 432 are both arranged on the double-layer structure of the crank arm 42, that is, the first transmission pin 431 and the second transmission pin 432 pass through the upper crank arm, so that one end is fixed to the lower crank arm. The second transmission pin 432 is sleeved with a buffer roller 44. The buffer roller 44 is located between the upper and lower layers of the crank arm 42.

[0064] The first transmission pin 431 is connected to the second transmission module 30. Rotation of the second transmission module 30 drives the first transmission pin 431, which in turn drives the output shaft 41. More specifically, the unsecured end of the first transmission pin 432 extends into the arcuate groove 312 of the second transmission module 30 and connects to the sector plate 31. This allows the sector plate 31 to drive the first transmission pin 431, which in turn drives the output shaft 41, when the input shaft 50 rotates. The first transmission pin 431 is able to move within the arcuate groove 312 under the influence of an external force.

[0065] Refer again Figure 5 , an energy storage elastic member 81 is also provided on the lower mounting plate 62. The head end of the energy storage elastic member 81 is fixed to the lower mounting plate 62, and the tail end is fixed to the first transmission pin 431. The tail end of the energy storage elastic member 81 moves with the movement of the first transmission pin 431, so that the energy storage elastic member 81 is compressed and stores energy when pushed. In the process of returning to its original state and releasing energy, the energy storage elastic member 81 can push the first transmission pin 431 to move. In this embodiment, the energy storage elastic member 81 can be a spring.

[0066] At the initial stage of the closing operation of the operating mechanism 100, the compression amount of the energy storage elastic member 81 reaches the maximum. At this time, the energy storage elastic member 81, the first transmission pin 431 and the input shaft 50 are located in the same straight line. Figure 5 (In the figure, the sector plate 31 drives the first transmission pin 431 to rotate clockwise). The energy storage elastic member 81 releases energy upon returning to its original state, pushing the first transmission pin 431 to move rapidly within the arcuate groove 312, thereby driving the output shaft 41 to rotate rapidly, thereby achieving rapid closing. The provision of the arcuate groove 312 enables the first transmission pin 431 to move rapidly within the arcuate groove 312, thereby driving the output shaft 41 to rotate. At the same time, due to the provision of the arcuate groove 312, the energy storage elastic member 81 does not immediately drive the input shaft 50 to rotate when driving the output shaft 41 to rotate. This prevents the input shaft 50 from driving the shaft extension 211 to rotate and accidentally injuring the operator, thereby ensuring safety. During the initial opening operation of the operating mechanism 100, the energy storage elastic member 81 is in a stretched or original state. That is, before the sector plate 31 drives the first drive pin 431 to rotate, the sector plate 31 must overcome the resistance created by the energy storage elastic member 81. This, to a certain extent, delays the opening time, ensuring a slow opening and, in turn, ensuring safe operation of the grounding switch. After overcoming the resistance created by the elastic member 81, the arc sector plate 31 begins to drive the first drive pin 431 counterclockwise, thereby driving the output shaft 41 counterclockwise.

[0067] Furthermore, a limit rod 82 and a buffer module 83 are provided on the lower mounting plate 62. The limit rod 82 is disposed between the upper mounting plate 61 and the lower mounting plate 62. The limit rod 82 is located in the path of the crank arm 42. When the operating mechanism 100 performs a tripping operation, the right end 421 of the crank arm 42 rotates clockwise and collides with the limit rod 82, forcing the output shaft module 40 to slow down, thereby quickly stopping the output shaft 41 and ultimately stopping the output shaft 41 at a predetermined position. This also prevents the output shaft module 40 from overtravel.

[0068] Combine Figure 7As shown, it is a schematic diagram of the structure of the buffer module disclosed in the present invention. The buffer module 83 is fixed on the lower mounting plate 62 and is located on the path passed by the buffer roller 44. The buffer module 83 includes a buffer cap 831, a buffer head 832 and a buffer 833 connected to the buffer head 832. When the operating mechanism 100 performs a closing operation, the output shaft module 40 rotates counterclockwise, and the buffer roller 44 rotates with the output shaft module 40. At the end of the closing operation, the buffer roller 44 rubs against the buffer cap 831, the buffer head 832 and the buffer 833 in turn, forcing the output shaft module 40 to rotate at a gradually reduced speed until it stops at a predetermined position, while also preventing the output shaft module 40 from overtravel.

[0069] Furthermore, the buffer 833 is provided with a buffer seat 834 and fixing nuts 835 located on both sides of the buffer seat 834 for fixing the buffer seat 834. By loosening the two fixing nuts 835, the buffer seat 834 can be moved to different positions on the buffer 833, thereby adjusting the friction stroke between the buffer roller 43 and the buffer 833.

[0070] Therefore, a limit rod 82 and a buffer module 83 are set on the lower mounting plate 62 to limit the output shaft module 40. On the one hand, it can enable the operating mechanism 100 to stop moving as soon as possible at the end of closing and opening; on the other hand, it can effectively prevent the output shaft 41 from overtravel movement and avoid the phenomenon of not being able to stop in place.

[0071] Combine Figure 8 , which is a schematic diagram of the structure of the connection between the upper mounting plate and the output shaft module of the present disclosure. A first groove 611 and a second groove 612 are defined on the upper mounting plate 61. The first groove 611 and the second groove 612 are located on either side of the input shaft 50 and are symmetrically distributed about the input shaft 50. The top end of the first drive pin 431 of the output shaft module 40 passes through the first groove 611 and out of the upper mounting plate 61. The top end of the second drive pin 432 of the output shaft module 40 passes through the second groove 612 and out of the upper mounting plate 61.

[0072] A micro switch 613 and a micro switch 614 are respectively provided near the two ends of the second groove 612. Figure 6 As shown, in this state, the pressing piece of the micro switch 613 presses the top end of the second transmission pin 432. When the micro switch 613 is pressed, the second transmission pin 432 disengages from the pressing piece of the micro switch 613 and slides toward the other end of the second groove 612. When the second transmission pin 432 reaches the other end of the second groove 612, it is touched by another micro switch 614 and rebounds back to its original position. It is then pressed by the pressing piece of the micro switch 613 at the original end again, thereby triggering the micro switch 613 at the original end to generate an electric pulse, thereby starting or stopping the motor 11.

[0073] Recombination Figure 9 As shown, it is a schematic diagram of the top structure of the operating mechanism of the present invention. A bevel gear fork module 90 is provided on the upper mounting plate 61. The bevel gear fork module 90 includes a shift fork 91, a bevel transmission shaft 92 and a bevel gear 93. One end of the shift fork 91 is fixedly connected to the top end of the first transmission pin shaft 431, and the other end is fixed on the bevel transmission shaft 92. The bevel transmission shaft 92 is fixed on the upper mounting plate 61. One end of the shift fork 91 moves with the movement of the first transmission pin shaft 431, and the other end of the shift fork pushes the bevel transmission shaft 92 to rotate. The bevel gear 93 is fixed on the bevel transmission shaft 92, and the rotation of the bevel transmission shaft 92 drives the bevel gear 93 to rotate.

[0074] The auxiliary switch module 70 is positioned along the length of the upper mounting plate 61, with one end facing the bevel gear 93. The auxiliary switch module 70 includes at least one auxiliary switch body 71 and at least one auxiliary switch shaft 72 positioned centrally within the auxiliary switch body 71. Multiple switches are mounted on the auxiliary switch body 71. Another bevel gear 73 is positioned at the end of the auxiliary switch shaft 72. This bevel gear 73 is positioned perpendicular to the bevel gear 93 and meshes with it. Rotation of the bevel gear 93 drives the bevel gear 73, which in turn drives the auxiliary switch shaft 72, thereby turning the corresponding switches on the auxiliary switch body 71 on and off.

[0075] Further, if Figure 9 As shown, the auxiliary switch module 70 includes two auxiliary switch bodies 71. Each auxiliary switch body 71 has an auxiliary switch shaft 72 located at its center. A bevel gear 73 is located at the end of one of the auxiliary switch shafts 72. The auxiliary switch 72 with the bevel gear 73 drives the remaining auxiliary switch shafts 72 to rotate via a connecting rod 74, thereby turning the corresponding switches on each auxiliary switch body on and off.

[0076] Specific, combined Figure 10 Figure 1 shows the schematic diagram of the auxiliary switch module disclosed herein. The connecting rod structure 74 includes two connecting rods 741 for connecting the corresponding auxiliary switch shafts 72, and an intermediate connecting rod 742 connecting the two connecting rods 741. When one auxiliary switch shaft 72 rotates, the other auxiliary switch shaft 72 is driven to rotate by the interconnected connecting rods.

[0077] It should be noted here that due to Figure 10 There are two auxiliary switch bodies 71 shown in FIG. Figure 10 The connecting rod structure 74 shown can realize the rotation of another auxiliary switch shaft 72. However, the shape and structure of the connecting rod structure are not limited to Figure 10 As shown in the shape structure, the shape structure of the connecting rod structure can be changed according to the actual number of auxiliary switch bodies so that all auxiliary switch shafts 72 can rotate.

[0078] Furthermore, the auxiliary switch module 70 further includes an indicator plate 75 . The indicator plate 75 is disposed on the other end of the auxiliary switch shaft 72 where the bevel gear 73 is disposed, and the indicator plate 75 rotates as the auxiliary switch shaft 72 rotates.

[0079] The indicator board 75 is an arc-shaped structure, on which at least two indicator lights of different colors are provided. Figure 10 As shown, the indicator board 75 is divided into multiple areas, and different areas are provided with indicator lights of different colors. For example, area 751 of the indicator board 75 is a red indicator light area, and area 752 is a green indicator light area. Indicators of different colors are used to indicate that the grounding switch is in different working states (closed or open). Figure 1 As shown, indicator sign 75 protrudes from grounding switch housing 200. In practice, indicator sign 75 is enclosed by a housing with a display window. The indicator light is visible only when the display window is positioned. Rotation of auxiliary switch shaft 72, which switches the auxiliary switch on and off, drives indicator sign 75, causing the indicator light on indicator sign 75 to rotate to the position corresponding to the operating status, thereby providing a warning to the outside world.

[0080] The above are only preferred embodiments of the present invention and do not limit the scope of protection of the present invention. Any equivalent structural changes made using the contents of the present invention description and drawings are included in the scope of protection of the present invention.

Claims

1. An operating mechanism of a grounding switch, characterized in that: include: Driver module; A first transmission module is connected to the driving module and rotates under the drive of the driving module; an input shaft, drivingly connected to the first transmission module and rotating under the drive of the first transmission module; A second transmission module is installed on the input shaft and realizes transmission under the drive of the input shaft; The output shaft module is driven by the second transmission module to rotate; an upper mounting plate, on which the drive module and the first transmission module are mounted; a lower mounting plate, the output shaft module is mounted on the lower mounting plate, the second transmission module is located between the upper mounting plate and the lower mounting plate and above the output shaft module, the input shaft passes through the upper mounting plate and protrudes downward for mounting the second transmission module; An auxiliary switch module is mounted on the upper mounting plate; The output shaft module includes an output shaft, crank arms installed on both sides of the output shaft, and a first transmission pin and a second transmission pin respectively provided on the crank arms on both sides; The second transmission module is connected to the first transmission pin shaft, and when the second transmission module rotates, the first transmission pin shaft is driven to rotate, thereby driving the output shaft to rotate; The output shaft is coaxially arranged with the input shaft, and the output shaft and the input shaft are connected via a bearing.

2. The operating mechanism of the grounding switch according to claim 1, characterized in that: The operating mechanism also includes an energy storage elastic member, the head end of which is fixed to the lower mounting plate, and the tail end of which is fixed to the first transmission pin shaft. The tail end of the energy storage elastic member moves with the movement of the first transmission pin shaft, so that the energy storage elastic member is compressed and stores energy when pushed. In the process of restoring its original state and releasing energy, the energy storage elastic member can push the first transmission pin shaft to move.

3. The operating mechanism of the grounding switch according to claim 2, characterized in that: The second transmission module includes a sector plate, one end of which is located at the center of the sector plate is fixed to the input shaft, and an arcuate groove is formed in the area of ​​the sector plate near the arcuate edge, and the first transmission pin extends into the arcuate groove and is able to move in the arcuate groove; When the operating mechanism performs a closing operation, the energy storage elastic member releases energy, pushing the first transmission pin shaft to move quickly in the arc-shaped groove, thereby achieving rapid closing. When the operating mechanism performs an opening operation, the fan-shaped plate overcomes the resistance generated by the energy storage elastic member, and then drives the first transmission pin shaft to rotate, thereby driving the output shaft to rotate, thereby achieving slow opening.

4. The operating mechanism of the grounding switch according to claim 3, characterized in that: The arc profile of the arc-shaped groove is the same as the profile of the arc edge of the sector plate.

5. The operating mechanism of the grounding switch according to claim 1, characterized in that: The crank arm has a double-layer structure, and a buffer roller is sleeved on the second transmission pin shaft. The buffer roller is located between the upper layer and the lower layer of the crank arm. The operating mechanism also includes: a limit rod, disposed between the upper mounting plate and the lower mounting plate and located on a path through which the crank arm passes; at the end of the opening operation of the operating mechanism, the crank arm collides with the limit rod, forcing the output shaft to reduce its rotational speed and stop at a predetermined position; The buffer module is fixed on the lower mounting plate and is located on the path passed by the buffer roller. At the end of the closing operation of the operating mechanism, the buffer roller rubs against the buffer module, forcing the rotation speed of the output shaft to gradually decrease and stop at a predetermined position.

6. The operating mechanism of the grounding switch according to claim 5, characterized in that: The buffer module includes a buffer cap, a buffer head, and a buffer connected to the buffer head; at the end of the closing operation of the operating mechanism, the buffer roller rubs against the buffer cap, the buffer head, and the buffer in sequence.

7. The operating mechanism of the grounding switch according to claim 6, characterized in that: The buffer is provided with a buffer seat and fixing nuts located on both sides of the buffer seat for fixing the buffer seat. The buffer seat can be positioned at different positions on the buffer under the adjustment of the fixing nuts to adjust the friction stroke between the buffer roller and the buffer.

8. The operating mechanism of the grounding switch according to claim 1, characterized in that: The upper mounting plate is provided with a first groove, and the top end of the first transmission pin passes through the first groove and out of the upper mounting plate; A bevel gear fork module is provided on the upper mounting plate, and the bevel gear fork module includes a shift fork, a bevel transmission shaft and a bevel gear, one end of the shift fork is fixedly connected to the top end of the first transmission pin shaft, and the other end of the shift fork is fixed to the bevel transmission shaft, one end of the shift fork moves with the movement of the first transmission pin shaft, and the other end of the shift fork pushes the bevel transmission shaft to rotate, and the bevel transmission shaft drives the bevel gear to rotate; The auxiliary switch module includes at least one auxiliary switch body and at least one auxiliary switch rotating shaft arranged in the middle of the auxiliary switch body axis. Another bevel gear is provided at the end of the auxiliary switch rotating shaft. The bevel gear on the auxiliary switch rotating shaft is engaged with the bevel gear of the bevel gear fork module, driving the auxiliary switch rotating shaft to rotate, thereby realizing the on and off of the corresponding switch on the auxiliary switch body.

9. The operating mechanism of the grounding switch according to claim 8, characterized in that: The auxiliary switch module includes a plurality of auxiliary switch bodies, and an auxiliary switch rotating shaft is correspondingly provided at the axial center of each auxiliary switch body. A bevel gear is provided at the end of one of the auxiliary switch rotating shafts. The auxiliary switch provided with the bevel gear drives the remaining auxiliary switch rotating shafts to rotate through a connecting rod structure.

10. The operating mechanism of the grounding switch according to claim 8, characterized in that: The auxiliary switch module further includes an indicator plate, which is arranged at the other end of the auxiliary switch shaft where the bevel gear is arranged, and the indicator plate rotates along with the rotation of the auxiliary switch shaft.

11. The operating mechanism of the grounding switch according to claim 1, characterized in that: A second groove is formed on the upper mounting plate, and the top end of the second transmission pin passes through the second groove and out of the upper mounting plate; A micro switch is respectively provided at both ends of the second groove, and the pressing piece of the micro switch at one end presses the top end of the second transmission pin shaft. When the micro switch pressing the second transmission pin shaft is pressed, the second transmission pin shaft disengages from the pressing piece of the micro switch and slides to the other end of the second groove. When the second transmission pin shaft reaches the other end of the second groove, it is touched by another micro switch and rebounds back to its original position, and is pressed by the pressing piece of the micro switch at the original end again, thereby triggering the micro switch at the original end to generate an electric pulse.

12. The operating mechanism of the grounding switch according to claim 1, characterized in that: The driving module includes a motor and an output gear, and the motor drives the output gear to rotate; The first transmission module includes a transmission shaft, a first gear arranged on the transmission shaft and meshing with the output gear, a second gear arranged on the transmission shaft, and a third gear meshing with the second gear, the third gear being arranged on the input shaft, the motor drives the output gear to rotate, the output gear drives the first gear to rotate, the first gear drives the transmission shaft to rotate, the transmission shaft drives the second gear to rotate, the second gear drives the third gear to rotate, and the third gear drives the input shaft to rotate.

13. The operating mechanism of the grounding switch according to claim 12, characterized in that: The transmission shaft is perpendicular to the upper mounting plate, the first gear is arranged on the upper half of the transmission shaft to be flush with and meshed with the output gear, and the second gear is arranged on the lower half of the transmission shaft to be flush with and meshed with the third gear; The top end of the transmission shaft is provided with an extension, which is a hexagonal shaft. When the motor is not powered, the transmission shaft is rotated by operating the handle in conjunction with the extension, causing the first transmission module and the second transmission module to rotate, thereby realizing the rotation of the output shaft module.

14. A grounding switch, characterized in that: The invention comprises a housing, a grounding switch body arranged in the housing, and an operating mechanism of the grounding switch according to any one of claims 1 to 13, wherein an output shaft module of the operating mechanism is connected to the grounding switch body.

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