CN216213208U - Toggle system of switch operating mechanism - Google Patents

Abstract

A toggle system of a switch operating mechanism is characterized in that: the bracket is provided with a toggle lever which can drive the sliding plate to slide left and right on the bracket, the sliding plate is provided with a common side sliding plate shaft and a standby side sliding plate shaft, and the common side sliding plate shaft and the standby side sliding plate shaft are positioned in corresponding long slots on the bracket and can slide in the corresponding long slots. The whole toggle system of the switch operating mechanism has the advantages of position layout of modularized parts, compact structure, convenient and quick installation and maintenance, convenient operation and high reliability.

Description

Toggle system of switch operating mechanism

Technical Field

The utility model belongs to the technical field of low-voltage electric appliances, and particularly relates to a toggle system of a switch operating mechanism, which is particularly suitable for a dual-power automatic transfer switch.

Background

With the development of society, people's requirements for power grids and power transmission and distribution processes thereof are gradually improved, mainly in the aspects of safety, reliability, continuity, easy maintenance and the like of power supply equipment, so that automatic transfer switches with the typical characteristics are more and more widely applied, especially in the occasions where power supply continuity needs to be maintained, such as hospitals, intelligent buildings, data centers, power plants, banks, important infrastructures and the like. In the working process of the dual-power automatic transfer switch, the reliability of the transfer and the stability of the operation are directly related to the continuous power supply output state of the power transmission and distribution line; the dual-power automatic transfer switch comprises two types, namely a two-position automatic transfer switch and a three-position automatic transfer switch; the two-position automatic change-over switch is switched between two states of a common side power supply switching-on state (simultaneous standby side power supply switching-off state) and a standby side power supply switching-on state (simultaneous common side power supply switching-off state), so that continuous, stable and reliable electric energy output of a power transmission and distribution line is realized.

The operating mechanism is used as a core part in the dual-power automatic transfer switch, provides kinetic energy for position conversion of the automatic transfer switch, and is linked with a contact system of the automatic transfer switch through an output part of the operating mechanism to perform switching-on position state conversion between a common-side power supply and a standby-side power supply; the operating mechanism of the automatic change-over switch in two positions has two states, which respectively correspond to the common side power supply switch-on position and the standby side power supply switch-on position. However, in the prior art, the two-position automatic transfer switch is provided with the locking mechanisms on the normal side and the standby side respectively, and the locking mechanisms on the normal side and the standby side are in complementary interference, which easily causes the situation that only one side of the normal side and the standby side is locked, and the other side is not locked, so that misoperation is caused.

Chinese patent ZL202021105170.3 discloses a dual power supply linkage locking device and dual power supply automatic transfer switch, relates to low-voltage apparatus technical field. The mechanical lock assembly comprises a base, a main power supply operating mechanism, a standby power supply operating mechanism and a mechanical lock assembly, wherein the main power supply operating mechanism, the standby power supply operating mechanism and the mechanical lock assembly are arranged on the base; the mechanical lock assembly comprises a lock body, a lock cylinder is arranged in the lock body, the lock cylinder is connected with a first locking transmission part and a second locking transmission part respectively, the first locking transmission part and the second locking transmission part are under the action of lock cylinder rotation, the lock cylinder is used as the center to transmit locking force respectively, the transmission output end of the first locking transmission part is provided with a first separating brake half shaft, the transmission output end of the second locking transmission part is provided with a second separating brake half shaft, and the first separating brake half shaft and the second separating brake half shaft are used for simultaneously locking or unlocking a main power supply operating mechanism and a standby power supply operating mechanism under the action of locking force. The main power supply operating mechanism and the standby power supply operating mechanism can be locked to the brake separating position at the same time, and therefore potential safety hazards during debugging or overhauling are reduced. However, the common side and the standby side output shafts of the dual-power linkage locking device need to be arranged independently, the locking device needs to be operated manually, the structure is complex, and safety accidents are easy to happen once an operator forgets to operate the locking device.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects that the conventional double-power-supply automatic transfer switch locking device needs manual operation and is complex in structure, the utility model provides the toggle system of the switch operating mechanism, which can be used for realizing the stable switching between two states of switching on a common-side power supply (simultaneously switching off a standby-side power supply) and switching on a standby-side power supply (simultaneously switching off the common-side power supply); the toggle system of the operating mechanism of the whole switch has the advantages of position layout of modularized parts, compact structure, convenient and quick installation and maintenance, convenient operation and high reliability.

Technical scheme

In order to achieve the technical object, the utility model provides a toggle system of a switch operating mechanism, which is characterized in that: the bracket is provided with a toggle lever which can drive the sliding plate to slide left and right on the bracket, the sliding plate is provided with a common side sliding plate shaft and a standby side sliding plate shaft, and the common side sliding plate shaft and the standby side sliding plate shaft are positioned in corresponding long slots on the bracket and can slide in the corresponding long slots.

Further, the support comprises a pair of side plates, and the side plates are fixedly connected through a plurality of connecting shafts.

Furthermore, a rotating mounting hole is formed in the stirring lever, the stirring lever is arranged on a support shaft on the outer side surface of the support through the rotating mounting hole and can rotate around the support shaft, a stirring linkage hole is formed in the stirring lever, a stirring linkage shaft is arranged on the outer side surface of the sliding plate, and the stirring linkage shaft is located in the stirring linkage hole to drive the sliding plate to slide left and right on the support.

Furthermore, the rotating part of the output shaft passes through the abdicating hole on the toggle lever and then is installed in the output shaft installation hole on the bracket.

Advantageous effects

The toggle system of the switch operating mechanism can be used for realizing the stable switching between two states of switching on of a common side power supply (switching off of a standby side power supply at the same time) and switching on of the standby side power supply (switching off of the common side power supply at the same time); when the two positions are kept at the termination positions after conversion is finished, corresponding locking devices are used for locking the corresponding positions, the locking devices can automatically realize locking by converting between a common side power supply and a standby side power supply, and the risk of misoperation of a product is avoided. The whole toggle system of the switch operating mechanism has the advantages of position layout of modularized parts, compact structure, convenient and quick installation and maintenance, convenient operation and high reliability.

Drawings

FIG. 1a is a schematic structural diagram of an operating mechanism in an embodiment of the present invention;

FIG. 1b is a schematic view of the internal structure of the stent in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a closing state at a common side in the embodiment of the utility model;

FIG. 3a is a schematic structural diagram of a first side plate in the embodiment of the utility model;

FIG. 3b is a schematic structural diagram of a first side plate in the embodiment of the utility model;

FIG. 4 is a schematic structural diagram of a second side plate in the embodiment of the utility model;

FIG. 5 is a schematic view of a slide in an embodiment of the present invention;

FIG. 6 is a schematic structural view of a swing lever according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a conventional side pull lever or a backup side pull lever in an embodiment of the present invention;

FIG. 8 is a schematic structural view of a conventional side link or a spare side link according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of an output shaft in an embodiment of the present invention;

FIG. 10 is a schematic view of a structure of a rotating lever according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a toggle lever in an embodiment of the present invention;

FIG. 12 is a schematic structural view of a conventional side lock lever or a backup side lock lever in an embodiment of the present invention;

FIG. 13a is a perspective view of an embodiment of the present invention with the main spring at its maximum compression;

FIG. 13b is a schematic illustration of the embodiment of the present invention with the main spring at maximum compression;

FIG. 14a is a perspective view of an embodiment of the present invention in a standby side closing state;

FIG. 14b is a schematic locking diagram of the embodiment of the present invention in a standby side closing state;

fig. 15 is a schematic structural view of a normal-side electromagnet or a standby-side electromagnet in the embodiment of the present invention.

Fig. 16a is a schematic view of the installation structure of the guide sleeve and the guide lever in the embodiment of the utility model.

Fig. 16b is a schematic view of the installation structure of the guide sleeve in the embodiment of the utility model.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "inner", "outer", "front", "rear", "left", "right", "general side", "spare side", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

Examples

As shown in fig. 1a, 1b,2,14a and 14b, an operating mechanism of a switch, especially an operating mechanism of a dual power automatic transfer switch, includes a bracket 1, in this embodiment, the bracket 1 includes a pair of side plates, the pair of side plates includes a first side plate 101 and a second side plate 101 'as shown in fig. 3a,3b and 4, and the first side plate 101 and the second side plate 101' are connected and fixed by a plurality of connecting shafts 102. The sliding plate 2 can slide left and right on the support 1, the left side of the support 1 is provided with a common side driving control system A, the right side of the support 1 is provided with a standby side driving control system B, one end of an output shaft 3 is rotatably installed on the support 1, the other end of the output shaft is positioned outside the support 1, the output shaft 3 is connected with a common opening spring 4 and a standby opening spring 5, the output shaft 3 can be driven by the common opening spring 4 and the standby opening spring 5 to rotate from a corresponding closing state to an opening state, the output shaft 3 is linked with a rotary swing mechanism C, the output shaft 3 can be driven by the rotary swing mechanism C to rotate back and forth so as to realize corresponding closing operation between a common side power supply and a standby side power supply, the rotary swing mechanism C is linked with the sliding plate 2, and when the sliding plate 2 slides to the left side end of the support 1, the output shaft 3 rotates anticlockwise to drive the power supply at the common side to be in a switch-on state and be locked by the locking mechanism D at the common side, and when the sliding plate 2 slides to the right side end of the support 1, the output shaft 3 rotates clockwise to drive the power supply at the standby side to be in a switch-on state and be locked by the locking mechanism E at the standby side. As shown in fig. 1a and 1b, in the present embodiment, the normal-side locking mechanism D is located on the left side of the sliding plate 2 and is linked with the sliding plate 2, and the standby-side locking mechanism E is located on the right side of the sliding plate 2 and is linked with the sliding plate 2.

Referring to the drawings, the structure of each functional component in this embodiment will be described in further detail, as shown in fig. 1a and 1B, the common side driving control system a includes a common side electromagnet a1, the left side of the slide plate 2 is linked with the common side electromagnet a1 shown in fig. 15 by a common side link mechanism a2, the standby side driving control system B includes a standby side electromagnet B1, and the right side of the slide plate 2 is linked with the standby side electromagnet B1 shown in fig. 15 by a standby side link mechanism B2. Wherein the common side link mechanism A2 includes a common side pull lever a201, specifically in this embodiment, as shown in fig. 7, the common side pull lever a201 preferably includes two common side pull lever pieces a201a, the common side pulling lever piece A201a is connected and installed together by a common side riveting shaft A201b, the normal side pulling lever a201 is attached to the bracket 1 via a normal side lever shaft a201c and can rotate about the normal side lever shaft a201c, as shown in fig. 7, the common side pulling lever a201 is provided with a common side long slot a201d, the common side slide plate shaft 201 is located in the common side long slot a201d for the linkage of the slide plate 2 and the common side pulling lever a201, as shown in fig. 2 and 8, one end of the common side link a202 is pivotally mounted on the common side riveting shaft a201b by a pivot hole a202a, and the other end is hinged on the plunger a101 of the common side electromagnet A1. The backup side link mechanism B2 includes a backup side pull lever B201, which, in particular in this embodiment, as shown in fig. 7, the standby side pulling lever B201 preferably includes two standby side pulling lever pieces B201a, the spare side pulling lever piece B201a is connected and installed together by a spare side riveting shaft B201B, the backup side pulling lever B201 is attached to the bracket 1 via a backup side lever shaft B201c and can rotate about the backup side lever shaft B201c, the spare side pulling lever B201 is provided with a spare side long slot hole B201d, a spare side sliding plate shaft 202 is positioned in the spare side long slot hole B201d and is used for the linkage of the sliding plate 2 and the spare side pulling lever B201, as shown in fig. 2 and 8, one end of the standby side link B202 is pivotally mounted on the standby side rivet shaft B201B through a second pivot hole, and the other end is hinged to the movable iron core B101 of the standby side electromagnet B1.

The support 1 is also provided with a poking system, the poking system comprises a poking lever 6, and the poking lever 6 can drive the sliding plate 2 to slide left and right on the support 1. In this embodiment, as shown in fig. 11, a rotation mounting hole 601 is formed in the toggle lever 6, the toggle lever 6 is mounted on the support shaft 103 on the outer side surface of the bracket 1 through the rotation mounting hole 601 and can rotate around the support shaft 103, a toggle linkage hole 602 is formed in the toggle lever 6, as shown in fig. 5, a toggle linkage shaft 203 is formed on the outer side surface of the sliding plate 2, and the toggle linkage shaft 203 is located in the toggle linkage hole 602, so that the toggle lever 6 drives the sliding plate 2 to slide left and right on the bracket 1.

As shown in fig. 5, the slide board 2 is provided with a normal side slide board shaft 201 and a standby side slide board shaft 202, the normal side slide board shaft 201 and the standby side slide board shaft 202 are located in the corresponding long slot holes 104,104 'of the bracket 1 and can slide in the corresponding long slot holes 104, 104', the slide board 2 utilizes the normal side slide board shaft 201 and the standby side slide board shaft 202 to link the corresponding normal side link mechanism a2 and the standby side link mechanism B2, and the slide board 2 is provided with a first driving part 204 for driving the rotary swing mechanism C.

The rotary swing mechanism C includes a swing lever C1, the swing lever C1 is rotatably mounted on the inner side of the bracket 1, in this embodiment, as shown in fig. 1b, the swing lever C1 is rotatably mounted on swing mounting protrusions 105, 105' which are oppositely arranged on the inner side of the bracket 1 by using a mounting hole C106 on the swing lever C1, as shown in fig. 2 and 6, a swing linkage portion C101 is arranged on the swing lever C1, the swing linkage portion C101 is linked with a first driving portion 204, in this embodiment, the first driving portion 204 is bent downward, the swing linkage portion C101 is a plurality of shafts, and a gap between the plurality of shafts is greater than a width of the first driving portion 204. A linkage shaft C102 is arranged on the swing lever C1, as shown in FIG. 16a, a guide lever C103 is arranged on the linkage shaft C102, the lower end of the guide lever C103 is positioned inside a guide sleeve C104 as shown in FIG. 16b, the guide sleeve C104 is rotatably mounted on a guide sleeve mounting shaft C107 on the bracket 1, a main spring C105 is mounted on the guide lever C103 and the guide sleeve C104, one end of the main spring C105 abuts against a first bulge part C103a at the upper end of the guide lever C103, and the other end abuts against a second bulge part C104a on the guide sleeve C104, in this embodiment, the first bulge part C103a and the second bulge part C104a are preferably step-shaped, as shown in FIG. 10, a connecting hole C201 is arranged on the rotating lever C2, and the part of the output shaft 3 positioned at the inner side of the bracket 1 is mounted in the connecting hole C201 by using its own limiting feature 301a to enable the output shaft 3 and the rotating lever C2 to move synchronously, the rotating lever C2 is provided with a linkage hole C202, the linkage shaft C102 is positioned in the linkage hole C202 to realize linkage of the rotating lever C2 and the swinging lever C1, and the side surface of the rotating lever C2 is provided with a plurality of stop shafts C203 to be linked with a corresponding common side locking mechanism D and a corresponding standby side locking mechanism E.

The common side locking mechanism D comprises a common side locking lever D1, a common side lever rotating shaft D101 is arranged on the common side locking lever D1 and is installed on the inner side of the support 1 through the common side lever rotating shaft D101, the common side locking lever D1 can rotate around the common side lever rotating shaft D101, as shown in the attached drawing 12, one side of the common side locking lever D1 is provided with a locking linkage part D102, the common side locking lever D1 is linked with a corresponding stop shaft C203 on the side face of the rotating lever C2 through the locking linkage part D102 and the locking linkage part two 205 on the inner side of the sliding plate 2, the other side of the common side locking lever D1 is provided with a limiting part D103, and the common side locking lever D1 is connected with a common side locking lever return spring D2. In this embodiment, the second locking linkage portion 205 includes a first slot 205a on the inner bottom surface of the slide plate 2 and the inner bottom surface of the slide plate 2. One end of the common side locking lever return spring D2 is connected to the common side locking lever D1. The other end is arranged on the outer side surface of the bracket 1.

The spare side locking mechanism E includes a spare side locking lever E1, a spare side lever rotating shaft E101 is provided on the spare side locking lever E1 and is mounted inside the bracket 1 through the spare side lever rotating shaft E101, the spare side locking lever E1 can rotate around the spare side lever rotating shaft E101, as shown in fig. 12, a locking linkage portion three E102 is provided on one side of the spare side locking lever E1 and is linked with a locking linkage portion four 206 inside the slide plate 2 through the locking linkage portion three E102, a limiting portion two E103 is provided on the other side of the spare side locking lever E1 and is linked with a corresponding stop shaft C203 on the side of the rotating lever C2, and a spare side locking lever return spring E2 is connected to the spare side locking lever E1. The locking linkage portion four 206 comprises a bottom surface of the inner side of the sliding plate 2 and a slot hole two 206a on the bottom surface of the inner side of the sliding plate 2. One end of the backup side locking lever return spring E2 is connected to the backup side locking lever E1. The other end is arranged on the outer side surface of the bracket 1.

The output shaft 3 is mounted in an output shaft mounting hole 106 of the bracket 1 and can rotate in the output shaft mounting hole 106, and the output shaft mounting hole 106 is positioned on the swing mounting protrusions 105, 105'. As shown in fig. 9, the output shaft 3 is provided with a rotating portion 301, an interlocking feature portion 302 and a cantilever 303, the rotating portion 301 is installed in the output shaft installation hole 106 of the bracket 1, a limiting feature 301a provided on the rotating portion 301 is used for fixedly connecting with a rotating lever C2, and the cantilever 303 is provided with a brake separating spring installation shaft 303a used for connecting a common brake separating spring 4 and a spare brake separating spring 5. The common brake separating spring 4 and the standby brake separating spring 5 are separated on the left side and the right side of the output shaft 3, one end of the common brake separating spring is installed on the spring installation shaft 303a, and the other end of the common brake separating spring is installed on the corresponding brake separating spring shafts 107 and 108 on the support 1. The rotating part 301 of the output shaft 3 passes through the abdicating hole 603 on the toggle lever 6 and then is installed in the output shaft installation hole 106 on the bracket 1.

In this embodiment, when the common-side power supply is in the switching-on position, the position states of the components are as follows: as shown in fig. 2, the operating mechanism is in a normal-side power supply closing position state, at this time, the sliding plate 2 is at the leftmost position of the maximum sliding stroke, the normal-side sliding plate shaft 201 on the sliding plate 2 links the normal-side pulling lever a201 to make the normal-side pulling lever a201 be located at the leftmost position of the maximum sliding stroke, the normal-side pulling lever a201 drives the movable iron core a101 of the normal-side electromagnet A1 through the normal-side connecting rod a202, and the movable iron core a101 is in a retracted state; meanwhile, when the slide plate 2 is at the leftmost position of the maximum sliding stroke, the standby side slide plate shaft 202 on the slide plate 2 links the standby side pulling lever B201 to make the standby side pulling lever B201 be at the leftmost position of the maximum sliding stroke, and the standby side pulling lever B201 drives the movable iron core B101 of the standby side electromagnet B1 through the standby side connecting rod B202 to make the movable iron core B101 be in the extended state.

When the operating mechanism is in a common-use side power supply switching-on position state, the main spring C105 passes through the guide lever C103 and is linked with the swinging lever C1 to enable the main spring to be in the maximum position of anticlockwise rotation; simultaneously, the swing lever C1 is linked with the linkage hole C202 of the rotating lever C2 through the linkage shaft C102 at the lower part of the swing lever C1, and the rotating lever C2 is in the maximum position of anticlockwise rotation; since the rotating lever C2 is mounted on the output shaft 3, the output shaft 3 is at the maximum position of counterclockwise rotation, and this position of the output shaft 3 ensures the normal side power supply switching-on position of the operating mechanism, and the standby switching-off spring 5 is in a stretched state. The slide plate 2 is at the leftmost position of the maximum sliding stroke, the first locking linkage part D102 of the common side locking lever D1 is positioned in the first slot hole 205a, and due to the action of the return spring D2 of the common side locking lever, the first limiting part D103 of the common side locking lever D1 is in contact with the corresponding stop shaft C203 of the rotating lever C2; and the connecting line of the contact point of the first limiting part D103 and the corresponding stop shaft C203 to the axial center of the corresponding stop shaft C203 passes through the common side lever rotating shaft D101 of the common side locking lever D1 (that is, the three points are collinear to form a dead point position), so that the position of the rotating lever C2 is locked, the output shaft 3 is locked, and the state locking of the common side power supply closing position is completed.

When the switching-on of the power supply at the common side is switched to the switching-on of the power supply at the standby side: the toggle lever 6 is rotated clockwise to the right, and the slide plate 2 is linked with the toggle lever 6 to slide rightwards; similarly, the standby-side electromagnet B1 may be energized to retract the plunger B101, the plunger B101 may be interlocked with the standby-side pulling lever B201 via the standby-side link B202 to rotate the standby-side pulling lever B201 clockwise, and the standby-side slider shaft 202 may be interlocked with the slider 2 to slide the slider 2 rightward while the standby-side pulling lever B201 rotates clockwise; in the sliding process of the sliding plate 2, the first driving part 204 thereof is linked with the swinging linkage part C101 on the swinging lever C1, so that the swinging lever C1 rotates and swings clockwise around the rotation center thereof; in the rotation process of the swing lever C1, the main spring C105 is compressed by the guide movement of the guide lever C103 in the guide sleeve C104;

when the slide plate 2 slides rightwards, the first locking linkage part D102 of the common side locking lever D1 is changed from being positioned in the first groove hole to being pressed by the bottom surface of the inner side of the bracket 1, so that when the common side locking lever D1 rotates clockwise and the common side locking lever D1 rotates clockwise, the first limiting part D103 is separated from contact with the corresponding stop shaft C203 on the side surface of the rotating lever C2, and the limiting locking of the rotating lever C2 is released. At this time, the output shaft 3 rotates clockwise due to the spring force of the normal opening spring 4, and the normal-side power supply opening operation is performed on the operating mechanism.

As shown in fig. 13a and 13b, when the swing lever C1 is rotated clockwise to the vertical state, the center line of the main spring C105 coincides with the rotation center point of the swing lever C1, the main spring C105 is compressed to the maximum state, and the spring force value is also accumulated to the maximum; at the moment, the toggle lever 6 or the movable iron core B101 continues to retract by continuing to clockwise rotate, the sliding plate 2 is linked with the swing lever C1 to continue clockwise rotate, the central line of the main spring C105 is changed to the left side of the rotating central point of the swing lever C1 at the moment, and the main spring C105 is released; when the main spring C105 is released, it pushes the guide lever C103 and links the swing lever C1 to accelerate the swing lever C1 to rotate clockwise.

In the process of clockwise rotation of the swing lever C1, the linkage shaft C102 is linked with the linkage hole C202 of the rotation lever C2, the rotation lever C2 overcomes the spring force of the standby brake separating spring 5 to rotate clockwise, and the rotation lever C2 is installed on the output shaft 3, so that the output shaft 3 rotates clockwise and finally rotates to the position; when the double-power automatic transfer switch rotates to the position, the switching-on action of a standby side power supply of the double-power automatic transfer switch is completed; namely, the dual-power automatic transfer switch completes the transfer from the switching-on state of the power supply at the common side to the switching-on state of the power supply at the standby side.

When the sliding plate 2 slides rightwards, the locking linkage part III E102 of the standby side locking lever E1 is pressed by the bottom surface of the inner side of the bracket 1 to be positioned in the slot II, and the standby side locking lever E1 rotates clockwise under the action of the standby side locking lever return spring E2; when the spare side locking lever E1 rotates clockwise, the second limit part E103 thereof contacts with the corresponding stop shaft C203 on the side surface of the rotating lever C2 and performs limit locking on the rotating lever C2; at this time, the connection line between the contact point of the second stopper E103 and the corresponding stopper shaft C203 and the axial center of the corresponding stopper shaft C203 passes through the backup side lever rotation axis E101 of the backup side lock lever E1 (that is, these three points are collinear to form a dead point position), so that the position lock of C2 is realized, and the state lock of the backup side power supply switching-on position is completed as shown in fig. 14.

After the standby power supply is switched on, the output shaft 3 rotates clockwise, the spring mounting shaft 303a on the cantilever 303 drives the standby opening spring 5 to act, and the output shaft 3 is acted by an anticlockwise rotation torque due to the spring force of the standby opening spring 5.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, those skilled in the art will appreciate that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (3)

1. A toggle system of a switch operating mechanism is characterized in that: the bracket is provided with a toggle lever which can drive the sliding plate to slide left and right on the bracket, the sliding plate is provided with a common side sliding plate shaft and a standby side sliding plate shaft, and the common side sliding plate shaft and the standby side sliding plate shaft are positioned in corresponding long slots on the bracket and can slide in the corresponding long slots;

the stirring device is characterized in that a rotary mounting hole is formed in the stirring lever, the stirring lever is arranged on a support shaft on the outer side surface of the support through the rotary mounting hole and can rotate around the support shaft, a stirring linkage hole is formed in the stirring lever, a stirring linkage shaft is arranged on the outer side surface of the sliding plate, and the stirring linkage shaft is located in the stirring linkage hole to drive the sliding plate to slide left and right on the support.

2. A toggle system for a switch operating mechanism, as claimed in claim 1, wherein: the support comprises a pair of side plates, and the side plates are fixedly connected through a plurality of connecting shafts.

3. A toggle system for a switch operating mechanism, as claimed in claim 1, wherein: and the rotating part of the output shaft passes through the abdicating hole on the toggle lever and then is installed in the output shaft installation hole on the bracket.

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