Operating mechanism and switch

Abstract

The present invention relates to the field of low-voltage electrical appliances, and specifically to an operating mechanism, wherein an operating shaft, a rotating cam, and a transmission shaft are driven and coordinated in sequence; the operating shaft rotates to drive the operating mechanism to switch between a closed position and an open position; the rotating cam is rotatably arranged and has a first free travel between it and the operating shaft, allowing the rotating cam to rotate relative to the operating shaft; the transmission shaft is rotatably arranged and has a second free travel between it and the rotating cam, allowing the rotating cam to rotate relative to the transmission shaft; an energy storage spring cooperates with the rotating cam, and when the operating mechanism is in the closed position or the open position, the energy storage spring is in a first position or a second position, and when the energy storage spring switches between the first position and the second position, it passes through a first dead point position; the operating shaft is arranged parallel to the rotation axis of the rotating cam and spaced apart; the operating mechanism can effectively reduce operating force. The present invention also relates to a switch including the operating mechanism, which has good breaking performance and is easy to operate.

Description

Technical Field

[0001] The present invention relates to the field of low-voltage electrical appliances, in particular to an operating mechanism, and also to a switch comprising the operating mechanism. Background Art

[0002] In low-voltage power distribution systems, circuits are often connected and disconnected through disconnectors. The operating mechanism is a crucial component of the disconnector, which is manually or electrically driven by the operator to actuate the moving contact mechanism of the contact system to connect and disconnect the circuit. However, existing operating mechanisms suffer from high operating forces. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide an operating mechanism that can effectively reduce the operating force; and also provide a switch including the operating mechanism, which has good breaking performance and is easy to operate.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An operating mechanism comprises a base and an energy storage spring, an operating shaft, a rotating cam and a transmission shaft arranged on the base, wherein the operating shaft, the rotating cam and the transmission shaft are driven and matched in sequence; the operating shaft rotates to drive the operating mechanism to switch between a closing position and an opening position; the rotating cam is rotatably arranged and has a first free stroke between it and the operating shaft, so that the rotating cam can rotate relative to the operating shaft; the transmission shaft is rotatably arranged and has a second free stroke between it and the rotating cam, so that the rotating cam can rotate relative to the transmission shaft; the energy storage spring cooperates with the rotating cam, and when the operating mechanism is in the closing position or the opening position, the energy storage spring is in the first position or the second position, and when the energy storage spring switches between the first position and the second position, it passes through a first dead point position; the operating shaft is arranged parallel to the rotation axis of the rotating cam and spaced apart.

[0006] Preferably, the operating shaft includes an operating shaft driving part, and the rotating cam includes a first cam side and a second cam side; the rotation of the operating shaft drives the operating shaft driving part to swing, and the operating shaft driving part drives the rotating cam to rotate through the second cam side or the first cam side.

[0007] Preferably, the rotating cam includes a cam actuated groove, the first cam side surface and the second cam side surface are a pair of oppositely arranged side surfaces of the cam actuated groove, and the operating shaft driving portion is protruded radially along the operating shaft and extends into the cam actuated groove.

[0008] Preferably, the first cam side surface and the second cam side surface respectively extend in the radial direction of the rotating cam.

[0009] Preferably, the operating shaft driving portion includes a driving wheel, and the operating shaft driving portion is driven and engaged with the first cam side surface and the second cam side surface respectively through the driving wheel.

[0010] Preferably, the operating shaft includes an operating shaft body, a driving wheel and a driving wheel shaft; the operating shaft body is rotatably arranged, and includes a shaft body main body and a driving wheel support arranged on a radial side of the shaft body main body, the driving wheel is rotatably arranged on the driving wheel support through the driving wheel shaft, and the driving wheel is arranged parallel to the rotation axis of the operating shaft and spaced apart.

[0011] Preferably, the rotating cam includes a third cam side and a fourth cam side, and the transmission shaft includes a transmission shaft boss disposed between the third cam side and the fourth cam side. The rotating cam drives the transmission shaft boss to swing through the third cam side or the fourth cam side, causing the transmission shaft to rotate.

[0012] Preferably, the rotation axes of the rotating cam and the transmission shaft coincide with each other, and the two ends of the rotating cam cooperate with the operating shaft and the transmission shaft respectively.

[0013] Preferably, the operating shaft rotates and drives the rotating cam to rotate, so that the energy storage spring reaches the first dead point position from the first position or the second position and stores energy. At the same time, the rotating cam rotates through the second free stroke relative to the transmission shaft. The operating shaft continues to drive the rotating cam to rotate so that the energy storage spring passes the first dead point position. The energy storage spring releases energy and drives the rotating cam to rotate through the first free stroke relative to the operating shaft and drives the transmission shaft to rotate.

[0014] Preferably, the operating mechanism also includes an indication structure for indicating the closing and opening status of the operating mechanism, and the indication structure includes a transmission bracket that cooperates with the rotating cam drive; when the operating mechanism switches to the closing position, the rotating cam drives the transmission bracket to move to the first indication position, and when the operating mechanism switches to the opening position, the transmission bracket resets to the second indication position.

[0015] Preferably, the indication structure further includes a bracket reset spring, and when the operating mechanism is switched to the opening position, the bracket reset spring drives the transmission bracket to reset to the second indication position.

[0016] Preferably, the indication structure further comprises a micro switch, and the micro switch is triggered when the transmission bracket moves to the first indication position and / or the first indication position.

[0017] Preferably, the base includes a base slide groove, and the transmission bracket is slidably arranged in the base slide groove.

[0018] Preferably, a bracket limiting side wall is provided at one end of the base slide groove, and when the transmission bracket is located at the second indicating position, the bracket return spring of the indicating structure enables the transmission bracket to be limitedly matched with the bracket limiting side wall.

[0019] Preferably, the base includes a first base beam and a second base beam arranged side by side and spaced apart, and the base slide is divided into two sections, one section is arranged on the first base beam, and the other section is arranged on the second base beam; the rotating cam, transmission shaft and energy storage spring are located on one side of the first base beam and the second base beam, and the transmission bracket is arranged on the other side of the first base beam and the second base beam.

[0020] Preferably, the base is provided with a first stroke limiting structure for limiting the rotation stroke of the operating shaft, and the first stroke limiting structure includes a first positioning side surface and a second positioning side surface respectively matched with the operating shaft driving part.

[0021] Preferably, the first stroke limiting structure is an operating shaft assembly groove arranged on the first base beam of the base, one end of the operating shaft is rotatably arranged on the bottom wall of the operating shaft assembly groove, and the first positioning side surface and the second positioning side surface are a pair of oppositely arranged side surfaces of the operating shaft assembly groove.

[0022] Preferably, the operating mechanism further comprises a shell which cooperates with the base, the shell is provided with an operating sleeve which is coaxially arranged with the operating shaft, and an operating sleeve hole for the operating shaft to pass through is provided in the middle of the operating sleeve.

[0023] Preferably, the base is a square box-type structure with an open side, including a first base beam and a second base beam, the first base beam and the second base beam are arranged side by side on the open side of the base and opposite to the bottom wall of the base, the transmission shaft is rotatably set on the bottom wall of the base, the rotating cam is coaxially arranged with the transmission shaft and the rotating cam is rotatably set on the transmission shaft, one end of the operating shaft is pivotally set on the first base beam, two energy storage springs are symmetrically distributed on both sides of the rotating cam, one energy storage spring is located between the first base beam and the bottom wall of the base, and the other energy storage spring is located between the second base beam and the bottom wall of the base, the transmission bracket is slidably set on one side of the first base beam and the second base beam, and the transmission bracket and the energy storage spring are respectively located on both sides of the first base beam.

[0024] A switch is characterized in that it includes the operating mechanism described above; the switch also includes a contact system, the contact system includes a moving contact mechanism and a static contact used in conjunction with each other, and the operating mechanism is drivingly connected to the moving contact mechanism through a transmission shaft.

[0025] The operating mechanism of the present invention can realize rapid opening or closing operation. The rotation axis of the operating shaft is parallel to the rotation axis of the rotating cam and does not overlap. The force arm of the operating shaft and the effective rotation angle of the operating shaft can be increased, which is beneficial to reducing the operating force.

[0026] In addition, the driving wheel rotates during the cooperation with the first cam side or the second cam side, thereby reducing the friction between the driving wheel and the first cam side or the second cam side, which is conducive to ensuring stable and smooth operation of the operating mechanism.

[0027] The switch of the present invention, including the operating mechanism, can realize rapid opening and closing operations, which is beneficial to improving the breaking capacity of the switch and reducing the operating force. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the operating mechanism of the present invention, which is in the open position;

[0029] Figure 2 It is a structural diagram of the operating mechanism of the present invention, wherein the energy storage spring is located at the first dead point;

[0030] Figure 3 Schematic diagram of the structure of the operating mechanism of the present invention, wherein the operating shaft drives the rotating cam to rotate, so that after the energy storage spring rotates past the first dead point position, the energy storage spring drives the rotating cam to rotate through the first free stroke relative to the operating shaft;

[0031] Figure 4 It is a schematic diagram of the structure of the operating mechanism of the present invention, which is in the closed position;

[0032] Figure 5 It is a schematic diagram of the explosion structure of the operating mechanism of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the base of the present invention;

[0034] Figure 7 1 is a schematic structural diagram of the transmission shaft of the present invention, showing the structure of one side thereof cooperating with the rotating cam;

[0035] Figure 8 is a schematic structural diagram of the transmission shaft of the present invention, showing the structure of the other side thereof;

[0036] Figure 9 is a schematic structural diagram of the rotating cam of the present invention, showing the structure of the side thereof cooperating with the operating shaft;

[0037] Figure 10 1 is a schematic structural diagram of the rotating cam of the present invention, showing the structure of the side thereof cooperating with the transmission shaft;

[0038] Figure 11 It is a structural schematic diagram of the operating shaft of the present invention;

[0039] Figure 12 It is a structural schematic diagram of the energy storage spring of the present invention;

[0040] Figure 13It is a structural schematic diagram of the transmission bracket of the present invention;

[0041] Figure 14 It is a structural schematic diagram of the housing of the present invention;

[0042] Figure 15 It is a structural schematic diagram of the micro switch of the present invention. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1 The embodiment given in FIG15 further illustrates the specific implementation of the operating mechanism and switch of the present invention. The operating mechanism and switch of the present invention are not limited to the description of the following embodiment.

[0044] like Figure 1 -5, the present invention discloses an operating mechanism, which includes a base 1 and an energy storage spring 5, an operating shaft 4, a rotating cam 3 and a transmission shaft 2 arranged on the base 1, the operating shaft 4, the rotating cam 3 and the transmission shaft 2 are driven and matched in sequence, and the transmission shaft 2 is used to drive the moving contact mechanism of the contact system; the operating shaft 4 rotates to drive the operating mechanism to switch between the closing position and the opening position; the rotating cam 3 is rotatably arranged and has a first free stroke between it and the operating shaft 4, so that the rotating cam 3 can rotate relative to the operating shaft 4; the transmission shaft 2 is rotatably arranged and has a second free stroke between it and the rotating cam 3, so that the rotating cam 3 can rotate relative to the transmission shaft 2; the energy storage spring 5 cooperates with the rotating cam 3, and in the closing position or the opening position of the operating mechanism, the energy storage spring 5 is located in the first position or the second position. When the energy storage spring 5 switches between the first position and the second position, it passes through the first dead point position and is used to drive the rotating cam 3 to accelerate the rotation; the rotation axis of the operating shaft 4 is parallel to the rotation axis of the rotating cam 3 and is arranged at intervals.

[0045] The operating mechanism of the present invention can realize rapid opening or closing operations. The rotation axis of the operating shaft 4 is parallel to the rotation axis of the rotating cam 3 and does not overlap. It can increase the force arm of the operating shaft 4 and increase the effective rotation angle of the operating shaft 4 (the effective rotation angle of the operating shaft refers to the angle at which the operating shaft drives the rotating cam to rotate the energy storage spring), which is beneficial to reducing the operating force.

[0046] The present invention also discloses a switch, comprising the operating mechanism and a contact system. The contact system comprises a moving contact mechanism and a static contact that are used in conjunction with each other. The operating mechanism is connected to the moving contact mechanism through a transmission shaft 2, driving the moving contact mechanism to rotate so that it closes or opens with the static contact.

[0047] The switch of the present invention, including the operating mechanism, can realize rapid opening and closing operations, which is beneficial to improving the breaking capacity of the switch and reducing the operating force.

[0048] The operating mechanism and the switch of the present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0049] like Figure 1 -15 is a specific embodiment of the operating mechanism of the present invention. The operating mechanism of this embodiment is preferably an operating mechanism of an isolating switch.

[0050] like Figure 1 As shown in Figure 5, the operating mechanism of this embodiment includes a base 1, an energy storage spring 5 disposed on the base 1, an operating shaft 4, a rotating cam 3, and a transmission shaft 2. The operating shaft 4, rotating cam 3, and transmission shaft 2 are driven and engaged in sequence. The transmission shaft 2 is used to drive the moving contact mechanism of the contact system. The operating shaft 4 rotates to drive the operating mechanism to switch between the closed position and the open position. The rotating cam 3 is rotatably arranged and has a first free stroke between it and the operating shaft 4, allowing the rotating cam 3 to rotate relative to the operating shaft 4. The transmission shaft 2 is rotatably arranged and has a second free stroke between it and the rotating cam 3, allowing the rotating cam 3 to rotate relative to the transmission shaft 2. The energy storage spring 5 cooperates with the rotating cam 3. When the operating mechanism is in the closed position or the open position, the energy storage spring 5 is in a first position or a second position. When the energy storage spring 5 switches between the first and second positions, it passes through a first dead point position and is compressed to store energy before passing through the first dead point position. The first dead point position is the position where the compressed energy is maximized. After passing through the first dead point position, the energy is released to drive the rotating cam 3 to rotate faster.

[0051] Preferably, Figure 1 As shown in FIG5 , the operating shaft 4 and the transmission shaft 2 are respectively rotatably mounted on the base 1, the rotating cam 3 is rotatably mounted on the transmission shaft 2, and both ends of the energy storage spring 5 are respectively matched with the rotating cam 3 and the base 1. Figure 6 As shown, the base 1 is provided with a transmission shaft assembly hole 11, and the transmission shaft 2 is rotatably arranged in the transmission shaft assembly hole 11. Of course, the rotating cam 3 can also be rotatably arranged on the base 1.

[0052] Preferably, Figure 1As shown in FIG-4, the operating shaft 4 rotates (for example, the operating shaft 4 is rotated by manual operation of the operator or by operation of an electric mechanism) and drives the rotating cam 3 to rotate, so that the energy storage spring 5 reaches the first dead point position from the first position or the second position and stores energy. At the same time, the rotating cam 3 rotates through the second free stroke relative to the transmission shaft 2. The second free stroke means that the rotating cam 3 and the transmission shaft 2 are not limited in this stroke, and the rotation of the rotating cam 3 will not drive the transmission shaft 2 to rotate. The operating shaft 4 continues to drive the rotating cam 3 to rotate so that the energy storage spring 5 passes the first dead point position. The energy storage spring 5 releases energy, and the energy storage spring 5 drives the rotating cam 3 to rotate through the first free stroke relative to the operating shaft 4, and at the same time drives the transmission shaft 2 to rotate faster, so as to drive the moving contact mechanism to realize rapid closing and opening. The first free stroke refers to a section of idle stroke. In this idle stroke, the rotating cam 3 and the operating shaft 4 are not limited in this stroke, and the rotation of the rotating cam 3 will not drive the operating shaft 4 to rotate. Further, as Figure 2 As shown, when the energy storage spring 5 is at the first dead point, its two ends and the rotation center of the rotating cam 3 are located on the same straight line. Figure 1 As shown in Figures 1-5 and 12, the energy storage spring 5 is a linear compression spring. When it is at the first dead center, the axis of the energy storage spring 5 coincides with the rotation center of the rotating cam 3. Of course, the energy storage spring 5 can also be a torsion spring. The connection relationship and arrangement of the energy storage spring 5 with the rotating cam 3 can be achieved through existing technologies and will not be described in detail here.

[0053] Preferably, Figure 1 As shown in FIG-5 , the operating mechanism includes two energy storage springs 5 ​​arranged on both sides of the rotating cam 3. One end of the two energy storage springs 5 ​​is respectively matched with the radial ends of the rotating cam 3, and the other end is respectively matched with the base 1. Figure 1 As shown in Figures 5 and 9, one end of the energy storage spring 5 is limited in the cam spring groove 35 of the rotating cam 3, and the other end is limited in the base spring groove 12 of the base 1.

[0054] Specifically, such as Figure 1 In the direction shown, the operating mechanism of this embodiment is in the open position and the energy storage spring 5 is in the second position. The operating shaft 4 rotates clockwise to drive the rotating cam 3 to rotate counterclockwise, and the rotating cam 3 drives the energy storage spring 5 to rotate clockwise to the first dead point position (as shown in FIG. Figure 2 As shown), the energy storage spring 5 stores energy. During the above process, the rotating cam 3 rotates relative to the transmission shaft 2 through the second free stroke (the transmission shaft 2 does not rotate during this process), as shown in FIG. Figure 3As shown, the operating shaft 4 continues to rotate clockwise to drive the rotating cam 3 to continue to rotate counterclockwise. After the rotating cam 3 drives the energy storage spring 5 to pass (that is, rotate or swing past) the first dead point position, the energy storage spring 5 releases energy and drives the rotating cam 3 to rotate through the first free stroke relative to the operating shaft 4. While the rotating cam 3 rotates through the first free stroke, the rotating cam 3 drives the transmission shaft 2 to rotate rapidly to achieve rapid closing. During this process, the operating shaft 4 does not rotate. Figure 4 As shown, the operating mechanism switches to the closed state and the energy storage spring 5 reaches the first position. The process of switching the operating mechanism from the closed state to the open state in this embodiment is the opposite of the above process, as shown in FIG. Figure 4 As shown, the operating mechanism is in the closing position and the energy storage spring 5 is in the first position, the operating shaft 4 rotates counterclockwise to drive the rotating cam 3 to rotate clockwise, and the rotating cam 3 drives the energy storage spring 5 to rotate counterclockwise to the first dead point position, so that the energy storage spring 5 stores energy. During the above process, the rotating cam 3 rotates through the second free stroke relative to the transmission shaft 2. During this process, the transmission shaft 2 does not rotate, and the operating shaft 4 continues to rotate counterclockwise to drive the rotating cam 3 to continue to rotate clockwise. After the rotating cam 3 drives the energy storage spring 5 to pass (that is, rotate or swing through) the first dead point position, the energy storage spring 5 releases energy and drives the rotating cam 3 to quickly rotate through the first free stroke relative to the operating shaft 4. While the rotating cam 3 rotates through the first free stroke, the rotating cam 3 drives the transmission shaft 2 to rotate quickly to achieve rapid opening. During this process, the operating shaft 4 does not rotate; as shown Figure 1 As shown, the operating mechanism switches to the open state and the energy storage spring 5 reaches the second position. The first free travel prevents the operator's speed from affecting the closing speed of the operating mechanism, while the second free travel prevents the switch contact system from being affected by the rotating cam before the energy storage spring reaches its maximum energy storage value, thereby ensuring the contact mechanism's opening speed and improving the switch's breaking performance.

[0055] Preferably, Figure 1 -5, 12 shows an embodiment of the energy storage spring 5: the energy storage spring 5 of this embodiment is a linear compression spring, comprising a spring actuated end 52, a spring body 53 and a spring limiting end 51 connected in sequence, the spring actuated end 52 cooperates with the cam spring slot 35 of the rotating cam 3, and the spring limiting end 51 cooperates with the base spring slot 12 of the base 1. Further, as Figure 12 As shown, the spring actuated end 52 includes a spring actuated rod, the extension direction of which is parallel to the axial direction of the rotating cam 3; the spring limiting end 51 includes a spring limiting rod, the extension direction of which is parallel to the axial direction of the rotating cam 3, and the spring limiting rod is rotatably set in the base spring slot 12.

[0056] Preferably, Figure 1As shown in Figures 5 and 9, the operating shaft 4 is arranged parallel to the rotation axis of the rotating cam 3 and spaced apart (the two do not overlap). Figure 1 -5 and 9, the operating shaft 4 includes an operating shaft driving portion, which is arranged on one side of the rotating cam 3. The rotating cam 3 is pushed to rotate by the operating shaft driving portion, and the rotating cam 3 includes a first cam side surface 31 and a second cam side surface 32; the rotation of the operating shaft 4 drives the operating shaft driving portion to swing, and the operating shaft driving portion is provided in a radially protruding manner along the operating shaft 4, and the protruding direction of the operating shaft driving portion is perpendicular to the rotation axis of the operating shaft 4. The operating shaft driving portion drives the rotating cam 3 to rotate through the second cam side surface 32 or the first cam side surface 31, so that the energy storage spring 5 moves to the first position or the second position.

[0057] Preferably, Figure 5 and 9 As shown, the rotating cam 3 includes a cam driven groove 31-32, a first cam side surface 31 and a second cam side surface 32 are a pair of side surfaces arranged opposite to each other in the cam driven groove 31-32, and the operating shaft driving portion of the operating shaft 4 extends into the cam driven groove 31-32 and respectively cooperates with the first cam side surface 31 and the second cam side surface 32. Figure 5 and 9 As shown, the cam driven groove 31-32 is a V-shaped groove, the tip of the V-shaped groove is set close to the axis of the rotating cam 3, and the open end faces the outer edge of the rotating wheel 3; the first cam side surface 31 and the second cam side surface 32 extend along the radial direction of the rotating cam 3 respectively.

[0058] Preferably, Figure 5 and 11 As shown, the operating shaft driving portion includes a driving wheel 42, and the operating shaft driving portion is driven and matched with the first cam side surface 31 and the second cam side surface 32 through the driving wheel 42. Figure 5 and 11 As shown, the operating shaft 4 includes an operating shaft body 41, a driving wheel 42 and a driving wheel shaft 43. The operating shaft body 41 includes a shaft body main body 411 and a driving wheel support 412 provided on a radial side of the shaft body main body 411. The driving wheel 42 is rotatably provided on the driving wheel support 412 via the driving wheel shaft 43. The driving wheel 42 is parallel to the rotation axis of the operating shaft 4 and is spaced apart. The operating shaft driving portion includes the driving wheel support 412 and the driving wheel 42. The driving wheel 42 is driven and cooperated with the first cam side surface 31 and the second cam side surface 32 respectively. Further, as shown in FIG. Figure 11As shown, the drive wheel support 412 includes a first drive wheel support plate 4120 and a second drive wheel support plate 4121 that are spaced apart from each other. One end of the first drive wheel support plate 4120 and the second drive wheel support plate 4121 are respectively connected to the shaft body 41, with a drive wheel assembly gap 413 defined therebetween. The drive wheel 42 is rotatably disposed within the drive wheel assembly gap 413 and is rotatably connected to the first drive wheel support plate 4120 and the second drive wheel support plate 4121 via the drive wheel shaft 43. The drive wheel 42 rotates during engagement with the first cam side surface 31 or the second cam side surface 32, thereby reducing friction between the drive wheel 42 and the first cam side surface 31 or the second cam side surface 32, thereby ensuring stable and smooth operation of the operating mechanism.

[0059] As another embodiment, the operating shaft driving portion may also be composed only of the driving wheel support 412, or the shape and size of the driving wheel support 412 may be adaptively adjusted, and then the driving wheel support 412 slides with the first cam side surface 31 and the second cam side surface 32 respectively to drive the rotating cam 3 to rotate.

[0060] Preferably, Figure 1 As shown in Figures 4 and 6, the base 1 is provided with a first stroke limiting structure 13-14 for limiting the rotation stroke of the operating shaft 4. The first stroke limiting structure 13-14 includes a first positioning side surface 13 and a second positioning side surface 14. The first positioning side surface 13 and the second positioning side surface 14 are respectively engaged with the operating shaft driving portion of the operating shaft 4 to limit the rotation stroke of the operating shaft 4. Figure 1 As shown, when the operating mechanism is in the opening position, the operating shaft driving portion is limitedly matched with the second positioning side surface 14; Figure 4 As shown, when the operating mechanism is in the closing position, the operating shaft drive portion is limitedly engaged with the first positioning side surface 13, thereby limiting the swing stroke of the operating shaft drive portion; that is, at both ends of the swing stroke of the operating shaft drive portion, it is limitedly engaged with the first positioning side surface 13 and the second positioning side surface 14 respectively.

[0061] Preferably, Figure 1 As shown in Figures 4 and 6, the first stroke limiting structure 13-14 is an operating shaft assembly groove, one end of the operating shaft 4 is rotatably mounted on the bottom wall of the operating shaft assembly groove, and the first positioning side surface 13 and the second positioning side surface 14 are a pair of oppositely disposed side surfaces of the operating shaft assembly groove. Figure 1 As shown in Figures 4 and 6, the operating shaft assembly groove is a funnel-shaped groove, the operating shaft 4 is rotatably arranged on the bottom wall of the funnel-shaped groove, and the operating shaft driving part cooperates with the large diameter end of the funnel-shaped groove. Figure 1As shown in FIG. 6 , the base 1 further includes a first base beam 10 , the operating shaft 4 is rotatably disposed on the first base beam 10 , and the first stroke limiting structure 13 - 14 is disposed on the first base beam 10 .

[0062] Preferably, Figure 5 and 14 As shown, the operating mechanism of this embodiment also includes a housing 8 that cooperates with the base 1. The housing 8 is provided with an operating shaft sleeve 81 that is coaxial with the operating shaft 4. The middle of the operating shaft sleeve 81 is provided with an operating shaft sleeve hole 810 for the operating shaft 4 to pass through. The housing 8 and the base 1 respectively limit the two ends of the operating shaft 4, ensuring that the operating shaft 4 works reliably and stably, which is conducive to extending the service life of the operating mechanism. It should be noted that, as Figure 1 As shown in FIG-5 , the operating shaft 4 is provided with an operating shaft socket at the free end thereof, which is a polygonal structure. The operator can use a crank to insert the operating shaft socket to drive the operating shaft 4 to rotate; alternatively, the operating shaft socket can also cooperate with the output shaft of the electric mechanism to drive the operating shaft 4 to rotate.

[0063] Specifically, such as Figure 1 As shown in Figures 1-5 and 14, one end of the operating shaft body 41 of the operating shaft 4 is rotatably arranged in the operating shaft assembly groove on the first base beam 10, and the other end is inserted into the operating shaft sleeve hole 810 of the operating shaft sleeve 81.

[0064] Preferably, Figure 10 As shown, the rotating cam 3 further includes a third cam side surface 33 and a fourth cam side surface 34; Figure 7 As shown, the transmission shaft 2 includes a transmission shaft boss 24 disposed between the third cam side surface 33 and the fourth cam side surface 34; after the rotating cam 3 rotates through the second free stroke, the transmission shaft boss 24 is driven to swing by the third cam side surface 33 or the fourth cam side surface 34, causing the transmission shaft 2 to rotate. Figure 5 As shown, the rotation axes of the rotating cam 3 and the transmission shaft 2 coincide with each other, and the two ends of the rotating cam 3 cooperate with the operating shaft 4 and the transmission shaft 2 respectively.

[0065] Preferably, Figure 10 As shown, the rotating cam 3 further includes a first annular platform 39 and a second annular platform 38 coaxial therewith. The second annular platform 38 is sleeved on the outside of the first annular platform 39. A first boss shaft hole 390 coaxial therewith is provided in the middle of the first annular platform 39. The first annular platform 38 is provided with a first notch (the first notch makes the first annular platform 38 a C-shaped structure). The two opposite side surfaces of the first notch are respectively the third cam side surface 33 and the fourth cam side surface 34; Figure 7As shown, the transmission shaft 2 includes a third annular platform 23 and a transmission shaft main shaft 24 coaxially arranged therewith. The transmission shaft main shaft 24 is arranged in the middle of the third annular platform 23, and a transmission shaft boss 24 is provided on the outer edge of the third annular platform 23. The second annular platform 38, the third annular platform 23, and the first annular platform 39 are sequentially arranged from the outside to the inside, and the transmission shaft main shaft 24 is inserted into the first boss shaft hole 390, so that the rotation axes of the rotating cam 3 and the transmission shaft 2 coincide. This embodiment is a preferred embodiment of the present invention, which makes the overall structure of the operating mechanism simple and compact. Of course, as another embodiment, the rotation axis of the transmission shaft 2 can also be parallel to the rotation axis of the rotating cam 3, located to one side of the rotation axis of the rotating cam 3, and the transmission shaft main shaft 24 extends along the radial protrusion of the transmission shaft 2 into the first notch.

[0066] Specifically, such as Figure 5 、 7 As shown in FIG10 , the first cam side surface 31 and the second cam side surface 32 are both arranged at one end of the rotating cam 3 (the end that cooperates with the operating shaft 4), and the third cam side surface 33, the fourth cam side surface 34, the first annular platform 39, and the second annular platform 38 are all arranged at the other end of the rotating cam 3 (the other end that cooperates with the transmission shaft 2).

[0067] Preferably, reference Figure 5 As shown, one end of the transmission shaft 2 is rotatably arranged in the transmission shaft assembly hole 11 of the base 1. Figure 7 and 8 As shown, the transmission shaft 2 includes a transmission shaft output part 21 and a transmission shaft annular stop 22. The transmission shaft output part 21 is rotatably set in the transmission shaft assembly hole 11 to output the opening and closing power outward. The transmission shaft annular stop 22 is limitedly cooperated with the outer side of the transmission shaft assembly hole 11 to prevent the transmission shaft 2 from escaping from the transmission shaft assembly hole 11.

[0068] like Figure 7 and 8 As shown in FIG. 1 , an embodiment of the transmission shaft 2 is shown. The transmission shaft 2 of this embodiment is a cylindrical structure, with one axial end being a third annular platform 23, the other axial end being a transmission shaft output portion 21, and a transmission shaft annular stop 22 being provided in the middle. The third annular platform 23, the transmission shaft output portion 21, and the transmission shaft annular stop 22 are coaxially arranged with the transmission shaft 2, and the outer diameter of the transmission shaft annular stop 22 is larger than the outer diameter of the transmission shaft output portion 21; as shown in FIG. Figure 7 As shown, the third annular platform 23 is provided with a transmission shaft main shaft 24 coaxial with the third annular platform 23 in the middle and a transmission shaft boss 24 at the outer edge. Figure 8 As shown, the other axial end of the transmission shaft 2 is provided with a transmission shaft hole 25 to output the opening and closing power to the outside. Figure 8 As shown, the transmission shaft hole 25 is a cross-shaped hole.

[0069] Preferably, Figure 1 As shown in Figures 1-5 and 13, the operating mechanism of this embodiment further includes an indicating structure for indicating the closing and opening states of the operating mechanism, and the indicating structure includes a transmission bracket 6 drivingly matched with the rotating cam 3; Figure 4 As shown, when the operating mechanism is switched to the closing position, the rotating cam 3 drives the transmission bracket 6 to move to the first indication position; Figure 1 As shown, when the operating mechanism is switched to the opening position, the transmission bracket 6 is reset to the second indicating position. Figure 9 As shown, the rotating cam 3 further includes a fifth cam side 37; Figure 13 As shown, the transmission bracket 6 includes a transmission bracket blocking rod 62; Figure 4 As shown, when the operating mechanism is switched to the closing position, the rotating cam 3 rotates, so that the fifth cam side surface 37 drives the transmission bracket 6 to move to the first indicating position through the transmission bracket blocking rod 62.

[0070] like Figure 9 and 10 As shown in FIG. 1 , an embodiment of the rotating cam 3 is shown. The rotating cam 3 of this embodiment is a cylindrical structure. Figure 9 As shown, the axial side of the rotating cam 3 is provided with a cam driven groove 31-32, a first cam side surface 31, a second cam side surface 32 and a fifth cam side surface 37. The pair of oppositely arranged side surfaces of the cam driven groove 31-32 are respectively the first cam side surface 31 and the second cam side surface 32. The fifth cam side surface 37, the first cam side surface 31 and the second cam side surface 32 are sequentially arranged along the circumference of the rotating cam 3. The fifth cam side surface 37 and the first cam side surface 31 are respectively located on both sides of a side wall of the cam driven groove 31-32. Figure 9 and 10 As shown, a cam spring slot 35 is provided at each radial end of the rotating cam 3; Figure 10 As shown, the other axial side of the rotating cam 3 is provided with a first annular platform 39, a second annular platform 38, a third cam side surface 33, a fourth cam side surface 34 and a first boss shaft hole 390. The first annular platform 39, the second annular platform 38 and the rotating cam 3 are coaxially arranged, the second annular platform 38 is sleeved on the outside of the first annular platform 39, the middle part of the first annular platform 39 is provided with a first boss shaft hole 390, the first annular platform 38 is provided with a first notch, and the two opposite side surfaces of the first notch are the third cam side surface 33 and the fourth cam side surface 34 respectively.

[0071] Preferably, Figure 1 As shown in FIG-4, the indication structure further includes a bracket reset spring 7. When the operating mechanism is switched to the open position, the bracket reset spring 7 drives the transmission bracket 6 to reset to the second indication position. Figure 4As shown, when the operating mechanism is closed, the rotating cam 3 drives the transmission bracket 6 to move to the first indication position, and the bracket return spring 7 is compressed to store energy; Figure 1 As shown, when the operating mechanism is opened, the rotating cam 3 releases the transmission bracket 6, and the bracket reset spring 7 relaxes and releases energy and drives the transmission bracket 6 to reset to the second indication position. Figure 4 In the direction shown, when the operating mechanism is switched to the closing position, the rotating cam 3 rotates counterclockwise to drive the transmission bracket 6 to move downward to the first indication position, so that the bracket reset spring 7 is compressed and stores energy; Figure 1 In the direction shown, when the operating mechanism is switched to the opening position, the rotating cam 3 rotates clockwise to release the transmission bracket 6, and the bracket return spring 7 relaxes and releases energy to drive the transmission bracket 6 to move up to the second indication position. Of course, the bracket return spring 7 can also be a tension spring or a torsion spring. When the operating mechanism is switched to the closing position, the rotating cam 3 cooperates with the transmission bracket stop rod 62 through the fifth cam side 37 to drive the transmission bracket 6 to move to the first indication position. At the same time, the bracket return spring 7 stores energy. When the operating mechanism is switched to the opening position, the bracket return spring 7 releases energy and drives the transmission bracket 6 to return to the second indication position.

[0072] Preferably, Figure 1 As shown in FIG5 , the transmission bracket 6 is slidably arranged on the base 1. Figure 6 As shown, the base 1 includes a base slide 15, and the transmission bracket 6 is slidably arranged in the base slide 15. Figure 6 As shown, one end of the base slide 15 is provided with a bracket limiting side wall 17; Figure 13 As shown, the transmission bracket 6 includes a bracket limiting foot 64; Figure 1 As shown, when the transmission bracket 6 is located at the second indicating position, the bracket return spring 7 enables the bracket limiting foot 64 to be limitedly matched with the bracket limiting side wall 17 .

[0073] Preferably, Figure 1 As shown in FIG-6, the base 1 further includes a second base crossbeam 19, which is arranged side by side with the first base crossbeam 10, and the base chute 15 is divided into two sections, which are respectively arranged on the first base crossbeam 10 and the second base crossbeam 19. The bracket limiting side wall 17 is arranged at the end of the base chute 15 away from the first base crossbeam 10, and the two ends of the bracket return spring 7 are respectively matched with the transmission bracket stop rod 62 of the transmission bracket 6 and the second base crossbeam 19. Further, as Figure 6 As shown, the second base crossbeam 19 is provided with a crossbeam spring limiting column 16; Figure 13 As shown, a bracket spring limiting column 63 is provided on the transmission bracket stop rod 62; one end of the bracket reset spring 7 is sleeved on the beam spring limiting column 16, and the other end is sleeved on the bracket spring limiting column 63.

[0074] Preferably, Figure 15 As shown, the indication structure further includes a micro switch 9, which is triggered when the transmission bracket 6 moves to the first indication position and / or the first indication position. Figure 15 As shown, the micro switch 9 includes a push rod 93 , and the transmission bracket 6 includes a bracket driving part 65 - 66 , and the bracket driving part 65 - 66 cooperates with the push rod 93 in driving.

[0075] The first matching mode of the transmission bracket 6 and the micro switch 9 is: Figure 4 As shown, when the operating mechanism is switched to the closing position, the transmission bracket 6 is located at the first indication position, the bracket driving part 65-66 releases the push rod 93, and the micro switch 9 does not output an electrical signal; Figure 2 As shown, when the operating mechanism switches to the open position, the transmission bracket 6 is located in the second indication position, the bracket driving part 65-66 presses the push rod 93, and the micro switch 9 outputs an electrical signal, so that when the operating mechanism switches between the closed position and the open position, the state of the micro switch 9 is changed (for example, closed and open states) to change the signal output by the micro switch 9 to indicate the open and closed state of the operating mechanism.

[0076] The second cooperation mode between the transmission bracket 6 and the micro switch 9 is: when the micro switch 6 is located at the first indication position, the micro switch 9 is triggered, so that the micro switch 9 outputs a first electrical signal; when the micro switch 6 is located at the second indication position, the micro switch 9 is triggered, so that the micro switch 9 outputs a second electrical signal, which also changes the output signal of the micro switch 9 to indicate the opening and closing state of the operating mechanism.

[0077] Preferably, Figure 13 As shown, the bracket drive portion 65-66 includes a drive portion inclined surface 65 and a drive portion flat surface 66 arranged in sequence. When the operating mechanism switches from the open position to the closed position, the drive portion inclined surface 65 contacts the push rod 93 before the drive portion flat surface 66. Furthermore, during the process of switching the operating mechanism from the open position to the closed position, the drive portion inclined surface 65 and the drive portion flat surface 66 sequentially slide into contact with the push rod 93. Furthermore, when the operating mechanism is in the open position, the drive portion inclined surface 65 is opposite to the push rod 93, and the micro switch 9 is not triggered. When the operating mechanism is in the closed position, the drive portion flat surface 66 presses against the push rod 93, triggering the micro switch 9.

[0078] Preferably, Figure 5 and 14 As shown, the housing 8 includes a micro switch assembly structure, which includes a micro switch assembly groove 82 provided in the middle thereof for accommodating and fixing the micro switch 9. Figure 5 and 14As shown, the micro switch assembly structure and the transmission bracket 6 are respectively located on both sides of the bottom wall of the housing 8. The bottom wall of the housing 8 is provided with a push rod avoidance hole 83 that cooperates with the push rod 93. The push rod 93 passes through the push rod avoidance hole 83 and cooperates with the bracket driving part 65-66. Figure 14 and 15 As shown, the micro switch assembly structure includes a pair of side walls and a pair of clamping arms arranged relatively at intervals. The micro switch 9 includes a micro switch body 90. The two ends of the external switch body 90 are respectively limited by a pair of clamping arms of the micro switch assembly structure.

[0079] Specifically, such as Figure 5 、 13 As shown in FIG14 , the operating mechanism of this embodiment includes two micro switches 9 , the housing 8 is provided with two micro switch assembly structures and two ejector rod avoidance holes 83 , and the transmission bracket 6 is provided with two bracket driving parts 65 - 66 .

[0080] like Figure 6 As shown, an embodiment of the base 1 is shown: the base 1 of this embodiment is a square box-shaped structure with an opening on one side, including a first base crossbeam 10, a second base crossbeam 19, a base spring slot 12, a transmission shaft assembly hole 11, a first stroke limiting structure 13-14, a base slide 15, a bracket limiting side wall 17 and a bracket spring limiting column 63. The first base crossbeam 10 and the second base crossbeam 19 are arranged side by side and spaced relative to the bottom wall of the base 1. The transmission shaft assembly hole 11 is arranged in the middle of the bottom wall of the base 1. The two base spring slots 12 are symmetrically distributed on both sides of the transmission shaft assembly hole 11 and are located at both ends of the base 1. The first base crossbeam 10 is located at the transmission shaft assembly hole 11. The driving shaft assembly hole 11 is located between the driving shaft assembly hole 11 and the spring clamping groove 12 of the base and is perpendicular to the line connecting the two. The second base crossbeam 19 is located between the driving shaft assembly hole 11 and the other spring clamping groove 12 and is perpendicular to the line connecting the two. The middle of the first base crossbeam 10 is provided with a first stroke limiting structure 13-14. The base slide 15 is divided into two sections, one section is provided on the first base crossbeam 10, and the other section is provided on the second base crossbeam 19. The bracket limiting side wall 17 is provided at one end of the base slide 15 and is located on the second base crossbeam 19. The bracket spring limiting column 63 is provided on the second base crossbeam 19 and is located between the first base crossbeam 10 and the second base crossbeam 19. Further, as Figure 6 As shown, the first stroke limiting structure 13-14 is an operating shaft assembly groove, the operating shaft 4 is rotatably arranged on the bottom wall of the operating shaft assembly groove, and a pair of relatively spaced side surfaces of the operating shaft assembly groove are respectively a first positioning side surface 13 and a second positioning side surface 14.

[0081] like Figure 13As shown, it is an embodiment of the transmission bracket 6: the transmission bracket 6 of this embodiment includes a bracket body 61, a transmission bracket stop rod 62, a bracket spring limiting column 63, a bracket limiting foot 64 and a bracket driving part 65-66, the bracket body 61 is slidably arranged in the base slide groove 15, two bracket driving parts 65-66 are arranged side by side on one side of the bracket body 61, the bracket limiting foot 64 and the transmission bracket stop rod 62 are arranged side by side on the other side of the bracket body 61, and the bracket spring limiting column 63 is arranged on the transmission bracket stop rod 62 and protrudes toward the bracket limiting column 64. Further, as Figure 13 As shown, the bracket driving portion 65 - 66 includes a driving portion inclined surface 65 and a driving portion plane 66 arranged in sequence. The driving portion plane 66 is arranged parallel to the bracket body 61 and spaced apart. The driving portion inclined surface 65 extends from the bracket body 61 to the driving portion plane 66 .

[0082] like Figure 1 -5, the layout of the operating mechanism of this embodiment is as follows: the first base beam 10 and the second base beam 19 are arranged side by side and spaced apart on one side of the opening of the base 1 and opposite to the bottom wall of the base 1, the transmission shaft 2 is rotatably arranged on the bottom wall of the base 1, the rotating cam 3 is coaxially arranged with the transmission shaft 2 and the rotating cam 3 is rotatably arranged on the transmission shaft 2, one end of the operating shaft 4 is pivotally arranged on the first base beam 10, two energy storage springs 5 ​​are symmetrically distributed on both sides of the rotating cam 3, one energy storage spring 5 is located between the first base beam 10 and the bottom wall of the base 1, and the other energy storage spring 5 is located between the second base beam 19 and the bottom wall of the base 1, the transmission bracket 6 is slidably arranged on one side of the first base beam 10 and the second base beam 19, and the transmission bracket 6 and the energy storage spring 5 are respectively located on both sides of the first base beam 10. Specifically, as Figure 1 -4, and refer to Figure 5 and 6 As shown, Figure 1 -4's upper, lower, left and right sides are the upper, lower, left and right sides of the operating mechanism. Figure 1 -4 The side facing the reader is the front side, and the side facing away from the reader is the rear side; the front side of the base 1 is open, the first base beam 10 and the second base beam 19 are arranged side by side on the front side of the base 1, the second base beam 19 is located below the first base beam 10, the transmission shaft 2 is rotatably arranged on the base, the rotating cam 3 and the transmission shaft 2 are coaxially arranged and rotatably arranged on the front side of the transmission shaft 2, the transmission bracket 6 is slidably arranged on the front sides of the first base beam 10 and the second base beam 19, the operating shaft 4 is pivotally arranged on the front side of the first base beam 10, and the two energy storage springs 5 ​​are symmetrically distributed on the upper and lower sides of the rotating cam 3.

[0083] The following is an embodiment of the switch of the present invention.

[0084] The switch of this embodiment is preferably an isolating switch, including the operating mechanism and the isolation chamber. Each isolation chamber is provided with a contact system, and the contact system includes a moving contact mechanism and a static contact used in conjunction with each other. The transmission shaft 2 of the operating mechanism is connected to the moving contact mechanism to drive the moving contact mechanism to rotate; the operating mechanism is switched to the closing position or the opening position, so that the moving contact mechanism and the static contact are closed or disconnected, so that the isolating switch is closed or opened.

[0085] Preferably, the moving contact mechanism includes a contact support and a moving contact disposed on the contact support, the contact support including a contact support shaft hole. The switch of this embodiment further includes a linkage member, the ends of which respectively cooperate with the transmission shaft hole 25 of the transmission shaft 2 and the contact support shaft hole, thereby driving the transmission shaft 2 to be connected to the moving contact mechanism. Furthermore, the switch of this embodiment includes multiple isolation chambers (for example, three isolation chambers corresponding to the three phases of a three-phase power supply, or two isolation chambers corresponding to the two phases of a two-phase power supply), the multiple isolation chambers being arranged side by side, the contact supports of adjacent isolation chambers being linked via a transmission member, and the operating mechanism being disposed at one end of the switch, side by side with the isolation chambers.

[0086] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. An operating mechanism, comprising a base (1), an energy storage spring (5) arranged on the base (1), an operating shaft (4), a rotating cam (3), and a transmission shaft (2) for driving a moving contact mechanism of a moving contact system, wherein the operating shaft (4), the rotating cam (3), and the transmission shaft (2) are driven and matched in sequence; the operating shaft (4) rotates to drive the operating mechanism to switch between a closing position and an opening position; the rotating cam (3) is rotatably arranged and has a first free stroke between it and the operating shaft (4), so that the rotating cam (3) can rotate relative to the operating shaft (4); the transmission shaft (2) is rotatably arranged and has a second free stroke between it and the rotating cam (3), so that the rotating cam (3) can rotate relative to the transmission shaft (2); the energy storage spring (5) Cooperating with the rotating cam (3), the energy storage spring (5) is located at the first position or the second position when the operating mechanism is located at the closing position or the opening position, and the energy storage spring (5) passes through the first dead point position when switching between the first position and the second position; the operating shaft (4) rotates and drives the rotating cam (3) to rotate, so that the energy storage spring (5) reaches the first dead point position from the first position or the second position and stores energy, and at the same time, the rotating cam (3) rotates through the second free stroke relative to the transmission shaft (2); the operating shaft (4) continues to drive the rotating cam (3) to rotate so that the energy storage spring (5) passes through the first dead point position, and the energy storage spring (5) releases energy, drives the rotating cam (3) to rotate through the first free stroke relative to the operating shaft (4), and drives the transmission shaft (2) to rotate; it is characterized in that: The operating shaft (4) is arranged parallel to and spaced apart from the rotation axis of the rotating cam (3).

2. The operating mechanism according to claim 1, characterized in that: The operating shaft (4) includes an operating shaft driving portion, and the rotating cam (3) includes a first cam side surface (31) and a second cam side surface (32); the operating shaft (4) rotates to drive the operating shaft driving portion to swing, and the operating shaft driving portion drives the rotating cam (3) to rotate via the second cam side surface (32) or the first cam side surface (31).

3. The operating mechanism according to claim 2, characterized in that: The rotating cam (3) comprises a cam actuated groove (31-32), a first cam side surface (31) and a second cam side surface (32) are a pair of side surfaces arranged opposite to each other in the cam actuated groove (31-32), and the operating shaft driving portion is arranged to protrude radially along the operating shaft (4) and extend into the cam actuated groove (31-32).

4. The operating mechanism according to claim 2, characterized in that: The first cam side surface (31) and the second cam side surface (32) respectively extend along the radial direction of the rotating cam (3).

5. The operating mechanism according to claim 2, characterized in that: The operating shaft driving portion comprises a driving wheel (42), and the operating shaft driving portion is driven and matched with the first cam side surface (31) and the second cam side surface (32) respectively through the driving wheel (42).

6. The operating mechanism according to claim 5, characterized in that: The operating shaft (4) comprises an operating shaft body (41), a driving wheel (42) and a driving wheel shaft (43); the operating shaft body (41) is rotatably arranged, and comprises a shaft body main body (411) and a driving wheel support (412) arranged on a radial side of the shaft body main body (411); the driving wheel (42) is rotatably arranged on the driving wheel support (412) via the driving wheel shaft (43); the driving wheel (42) is arranged parallel to the rotation axis of the operating shaft (4) and spaced apart.

7. The operating mechanism according to claim 1, characterized in that: The rotating cam (3) includes a third cam side surface (33) and a fourth cam side surface (34); the transmission shaft (2) includes a transmission shaft boss (24) disposed between the third cam side surface (33) and the fourth cam side surface (34); the rotating cam (3) drives the transmission shaft boss (24) to swing via the third cam side surface (33) or the fourth cam side surface (34), thereby rotating the transmission shaft (2).

8. The operating mechanism according to claim 7, characterized in that: The rotating axes of the rotating cam (3) and the transmission shaft (2) coincide with each other, and the two ends of the rotating cam (3) respectively cooperate with the operating shaft (4) and the transmission shaft (2).

9. The operating mechanism according to claim 1, characterized in that: The operating shaft (4) rotates and drives the rotating cam (3) to rotate, so that the energy storage spring (5) reaches the first dead point position from the first position or the second position and stores energy. At the same time, the rotating cam (3) rotates through a second free stroke relative to the transmission shaft (2). The operating shaft (4) continues to drive the rotating cam (3) to rotate so that the energy storage spring (5) passes the first dead point position. The energy storage spring (5) releases energy and drives the rotating cam (3) to rotate through the first free stroke relative to the operating shaft (4), and drives the transmission shaft (2) to rotate.

10. The operating mechanism according to claim 1, characterized in that: The operating mechanism further comprises an indication structure for indicating the closing and opening states of the operating mechanism, the indication structure comprising a transmission bracket (6) driven and matched with the rotating cam (3); when the operating mechanism is switched to the closing position, the rotating cam (3) drives the transmission bracket (6) to move to a first indication position, and when the operating mechanism is switched to the opening position, the transmission bracket (6) is reset to a second indication position.

11. The operating mechanism according to claim 10, characterized in that: The indication structure further comprises a bracket reset spring (7), and when the operating mechanism is switched to the opening position, the bracket reset spring (7) drives the transmission bracket (6) to reset to the second indication position.

12. The operating mechanism according to claim 10, characterized in that: The indication structure further comprises a micro switch (9), and the micro switch (9) is triggered when the transmission bracket (6) moves to the first indication position and / or the first indication position.

13. The operating mechanism according to claim 10, characterized in that: The base (1) comprises a base sliding groove (15), and the transmission bracket (6) is slidably arranged in the base sliding groove (15).

14. The operating mechanism according to claim 13, characterized in that: A bracket limiting side wall (17) is provided at one end of the base slide groove (15); when the transmission bracket (6) is located at the second indicating position, a bracket reset spring (7) of the indicating structure enables the transmission bracket (6) to be limitedly matched with the bracket limiting side wall (17).

15. The operating mechanism according to claim 13, characterized in that: The base (1) comprises a first base crossbeam (10) and a second base crossbeam (19) arranged side by side and spaced apart; the base chute (15) is divided into two sections, one section is arranged on the first base crossbeam (10), and the other section is arranged on the second base crossbeam (19); the rotating cam (3), the transmission shaft (2) and the energy storage spring (5) are located on one side of the first base crossbeam (10) and the second base crossbeam (19); and the transmission bracket (6) is arranged on the other side of the first base crossbeam (10) and the second base crossbeam (19).

16. The operating mechanism according to claim 2, characterized in that: The base (1) is provided with a first stroke limiting structure (13-14) for limiting the rotation stroke of the operating shaft (4); the first stroke limiting structure (13-14) comprises a first positioning side surface (13) and a second positioning side surface (14) respectively engaged with the operating shaft driving part.

17. The operating mechanism according to claim 16, characterized in that: The first stroke limiting structure (13-14) is an operating shaft assembly groove arranged on the first base crossbeam (10) of the base (1); one end of the operating shaft (4) is rotatably arranged on the bottom wall of the operating shaft assembly groove; the first positioning side surface (13) and the second positioning side surface (14) are a pair of oppositely arranged side surfaces of the operating shaft assembly groove.

18. The operating mechanism according to claim 17, characterized in that: The operating mechanism further comprises a housing (8) corresponding to the base (1); the housing (8) is provided with an operating shaft sleeve (81) coaxially arranged with the operating shaft (4); and an operating shaft sleeve hole (810) for the operating shaft (4) to pass through is provided in the middle of the operating shaft sleeve (81).

19. The operating mechanism according to claim 8, characterized in that: The base (1) is a square box-shaped structure with one side open, comprising a first base crossbeam (10) and a second base crossbeam (19). The first base crossbeam (10) and the second base crossbeam (19) are arranged side by side and spaced apart on one side of the opening of the base (1) and are arranged opposite to the bottom wall of the base (1). The transmission shaft (2) is rotatably arranged on the bottom wall of the base (1). The rotating cam (3) is coaxially arranged with the transmission shaft (2) and the rotating cam (3) is rotatably arranged on the transmission shaft (2). One end of the operating shaft (4) is pivotally arranged on the bottom wall of the base (1). On the first base crossbeam (10), two energy storage springs (5) are symmetrically distributed on both sides of the rotating cam (3), one energy storage spring (5) is located between the first base crossbeam (10) and the bottom wall of the base (1), and the other energy storage spring (5) is located between the second base crossbeam (19) and the bottom wall of the base (1), and a transmission bracket (6) is slidably arranged on one side of the first base crossbeam (10) and the second base crossbeam (19), and the transmission bracket (6) and the energy storage spring (5) are respectively located on both sides of the first base crossbeam (10).

20. A switch, characterized in that: It includes the operating mechanism according to any one of claims 1 to 19; the switch also includes a contact system, the contact system includes a moving contact mechanism and a static contact used in conjunction with each other, and the operating mechanism is driven and connected to the moving contact mechanism through a transmission shaft.

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