CN216671432U - Switching-on position locking structure of switching device operating system - Google Patents

Abstract

A switching position locking structure of a switching device operating system, characterized in that: when a common-side power supply is at a closing connection position, a connecting line of a corresponding overturning limiting linkage shaft and a rotation center of a corresponding rotation linkage shaft is positioned above or below the rotation center of a corresponding rotation lever, and a normal line of a contact surface of a corresponding linkage limiting part in a corresponding linkage slotted hole on an installation shaft sleeve and the corresponding rotation linkage shaft points to the rotation center of the corresponding rotation lever; when the three-position conversion is finished and the three-position conversion is kept at the end position, the corresponding locking device is used for locking the corresponding position, the requirement of manual operation during manual brake opening and closing can be met, the brake position locking structure is integrated, the modularized part position layout is arranged, the structure is compact, the installation and maintenance are convenient and fast, the operation is convenient, and the reliability is high.

Description

Switching-on position locking structure of switching device operating system

Technical Field

The utility model belongs to the technical field of low-voltage electric appliances, and particularly relates to a switching-on position locking structure of a switching device operating system, which is particularly suitable for a dual-power automatic transfer switch.

Background

The dual-power automatic transfer switch is widely applied to modern power transmission and distribution line systems, especially in the occasions of hospitals, intelligent buildings, data centers, power plants, banks, important infrastructures and the like needing to keep power supply continuity. 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 three-position automatic change-over switch can realize the working state of the two-position automatic change-over switch, and can also realize that the common side power supply and the standby side power supply are in a switching-off state (namely a double-split state) simultaneously, and lock the switching-off state.

The operating system 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 to perform switching-on position state conversion between a common side power supply and a standby side power supply; the operating system of the automatic change-over switch in the two positions has two states, which respectively correspond to the power supply switch-on position of the common side and the power supply switch-on position of the standby side. The operating system of the three-position automatic change-over switch has three states, which respectively correspond to a common side power supply switch-on position, a standby side power supply switch-on position and a double-branch position.

However, in the prior art, the three-position automatic transfer switch is provided with locking mechanisms at the common side, the standby side and the double-split position respectively, and the locking mechanisms at the three positions do not interfere with each other, which easily causes the situation that only one position is locked, and the other position is not locked, which causes the occurrence of safety accidents due to misoperation. On the other hand, the existing dual-power automatic transfer switch is of a dual-spindle structure and cannot meet the requirement of wiring on the same side of a product; the other aspect is that the manual switching on and off of the existing dual-power automatic transfer switch needs manual direct operation, so that the switching on and off action of the switch cannot be completed when the manual power is too small, and the switch device is easily damaged when the manual power is too large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a switching-on position locking structure of a switching device operating system aiming at the defects of the existing dual-power automatic transfer switch operating system, which can realize the stable switching of the dual-power automatic transfer switch between three states of switching on a common-side power supply (simultaneously switching off a standby-side power supply), switching on the standby-side power supply (simultaneously switching off the common-side power supply) and switching off the common-side power supply and the standby-side power supply (namely, double-division); when the three-position conversion is finished and the three-position conversion is kept at the termination position, corresponding locking devices are used for locking the corresponding positions, the locking devices at all the positions are mutually associated, the phenomenon that the product has false operation is avoided, the requirement of manual operation during manual switching on and off can be met, the whole dual-power automatic transfer switch operating system has modular part position layout, the structure is compact, the installation and maintenance are convenient and fast, the operation is convenient, and the reliability is high.

Technical scheme

In order to achieve the above technical object, the present invention provides a switching position locking structure of a switching device operating system, comprising: when the power supply at the common side is at a closing switch-on position, a connecting line of a turnover limiting linkage shaft at the standby side and a rotation center of a rotation linkage shaft at the standby side is positioned above a rotation center of a rotation lever at the standby side, a connecting line of the turnover limiting linkage shaft at the common side and the rotation center of the rotation linkage shaft at the common side is positioned below the rotation center of the rotation lever at the common side, a normal line of a contact surface of a linkage limiting part in a linkage slotted hole at the standby side and the rotation linkage shaft at the standby side on the mounting shaft sleeve points to the rotation center of the rotation lever at the standby side, the turnover limiting linkage shaft at the standby side is positioned at the upper top end of an arc-shaped long slotted hole at the standby side, and the turnover limiting linkage shaft at the common side is positioned at the lower top end of the arc-shaped long slotted hole at the common side;

when the standby side power supply is in a closing switch-on position, a connecting line of a turning limiting linkage shaft of the common side and a rotation center of a rotation linkage shaft of the common side is located above a rotation center of a rotation lever of the common side, a connecting line of a turning limiting linkage shaft of the standby side and a rotation center of a rotation linkage shaft of the standby side is located below a rotation center of a rotation lever of the standby side, a normal line of a contact surface of a linkage limiting portion in a linkage slotted hole of the common side and the rotation linkage shaft of the common side on the mounting shaft sleeve points to the rotation center of the rotation lever of the common side, the turning limiting linkage shaft of the common side is located at the upper top end of an arc-shaped long slotted hole of the common side, and the turning limiting linkage shaft of the standby side is located at the lower top end of the arc-shaped long slotted hole of the standby side.

Further, when the corresponding turning levers of the common side and the standby side rotate to the connecting line of the corresponding turning limit linkage shaft and the rotation center of the corresponding rotation linkage shaft passes through the rotation center of the corresponding rotation lever, the corresponding main springs of the common side and the standby side do not enable the corresponding rotation levers to generate rotating moment, so that the corresponding rotation levers are located at dead point positions.

Furthermore, one end of a main spring corresponding to the common side and the standby side in the bracket is arranged on the corresponding overturning limiting linkage shaft, and the other end of the main spring is arranged on the corresponding rotating linkage shaft.

Advantageous effects

The switching-on position locking structure of the switching device operating system can realize the stable switching of the dual-power automatic transfer switch between three states of switching on of a common-side power supply (simultaneous switching-off of a standby-side power supply), switching on of a standby-side power supply (simultaneous switching-off of the common-side power supply) and switching off (namely double-splitting) of the common-side power supply and the standby-side power supply; when the three-position conversion is finished and the three-position conversion is kept at the termination position, corresponding locking devices are used for locking the corresponding positions, the locking devices at all the positions are mutually associated, the phenomenon that the product has false operation is avoided, the requirement of manual operation during manual switching on and off can be met, the whole dual-power automatic transfer switch operating system has modular part position layout, the structure is compact, the installation and maintenance are convenient and fast, the operation is convenient, and the reliability is high.

Drawings

FIG. 1 is a schematic diagram of an operating system of an embodiment of the present invention;

FIG. 2 is a schematic diagram of an operating system of an embodiment of the present invention;

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 diagram of the construction of the toggle lever in the embodiment of the present invention;

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

FIG. 7 is a schematic structural view of a mounting boss in an embodiment of the present invention;

FIG. 8 is a schematic view of a slide in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a toggle lever in an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a turnover limiting linkage shaft in an embodiment of the utility model;

FIG. 11 is a schematic connection diagram of an unlocking electromagnet and an unlocking limit shaft according to an embodiment of the present invention;

FIG. 12a is a schematic structural diagram of a typical side unlock lever in an embodiment of the present invention;

FIG. 12b is a schematic structural view of a backup side unlock lever in an embodiment of the present invention;

FIG. 13a is a schematic view of a conventional side indicator according to an embodiment of the present invention;

FIG. 13b is a schematic view of the spare side indicator of an embodiment of the present invention;

FIG. 14 is a schematic view showing the connection relationship between the electromagnet, the pull rod and the turning lever according to the embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a limiting plate according to an embodiment of the utility model;

fig. 16 is a first schematic diagram illustrating a standby-side power supply switching-on state of an operating system according to an embodiment of the present invention;

fig. 17 is a schematic diagram of a second embodiment of the present invention, in which an operating system is in a standby power supply closing on state;

fig. 18 is a schematic position diagram of an installation shaft sleeve, a limiting plate, an unlocking limiting shaft and an unlocking electromagnet when an operating system is in a standby side power supply closing on state in the embodiment of the utility model;

fig. 19 is a schematic position diagram of an unlocking lever when an operating system is in a standby-side power supply closing on state in the embodiment of the present invention;

fig. 20 is a schematic diagram illustrating an operating system transitioning from a standby-side power-on state to a dual-split position in an embodiment of the present invention;

FIG. 21 is a schematic diagram illustrating an operating system switching a rotating lever from a standby power-on state to a double-split position at a dead point position according to an embodiment of the present invention;

FIG. 22 is a schematic diagram of an embodiment of the present invention illustrating an operating system switching a rotating lever from a standby power switch-on state to a double-split position past a dead point position;

FIG. 23 is a schematic diagram of an operating system switching a rotating lever from a standby power supply on state to a double-split position past a dead point position in an embodiment of the present invention;

FIG. 24 is a schematic illustration of the return of the toggle lever in an embodiment of the present invention;

FIG. 25a is a schematic diagram illustrating a position of a two-position limiting plate of the operating system according to an embodiment of the present invention;

FIG. 25b is a schematic diagram of an embodiment of the present invention in a dual-split position;

FIG. 26 is a schematic diagram illustrating a power switch of an operating system on a common side according to an embodiment of the present invention;

FIG. 27 is a schematic diagram of an operating system closing a power supply on a common side by using an unlocking electromagnet according to an embodiment of the present invention;

FIG. 28 is a schematic diagram of an operating system closing a common side power supply using an unlock lever according to an embodiment of the present invention;

FIG. 29 is a schematic diagram of a power switch of an operating system on a common side in an embodiment of the present invention;

fig. 30 is a schematic diagram of the state of an indicating element when an operating system is switched on by a standby power supply and switched off by a common power supply in the embodiment of the present invention;

FIG. 31 is a schematic diagram of an indicator state when the operating system is in a dual-split position in an embodiment of the present invention;

fig. 32 is a schematic diagram of the state of an indicating element when the operating system is switched on by the power supply on the normal side and switched off by the power supply on the standby side in the embodiment of the present invention;

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 a specific case to those of ordinary skill 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. 1 and 2, an operating system of a switchgear includes a frame 1, one side of the frame 1 is a general side, the other side is a standby side, the slide 2 shown in figure 8 is arranged in the frame 1 to be able to slide back and forth between the normal side and the standby side, the common side and the standby side of the sliding plate 2 are linked with corresponding electromagnets B and B 'by corresponding turnover pull rod mechanisms A and A', one end of an output system 3 is rotatably arranged on the bracket 1, the other end is positioned outside the bracket 1, the bracket 1 is provided with a toggle lever 4, the toggle lever 4 is rotatably arranged on the bracket 1, as shown in fig. 9, a slide plate linkage portion 401 is provided on the toggle lever 4, and the toggle lever 4 can drive the driven shaft 2b of the slide plate 2 by the slide plate linkage portion 401 to slide the slide plate 2 back and forth between the normal side and the standby side of the support 1. An output system through hole 402 is formed on the toggle lever 4 for the output system 3 to pass through. The support 1 is also provided with corresponding rotating levers C and C 'and corresponding main springs D and D' at the common side and the standby side, the output system 3 is linked with the corresponding rotating levers C and C 'and the corresponding main springs D and D' at the common side and the standby side in the support 1, the output system 3 can rotate back and forth under the combined action of the electromagnets B and B 'or the toggle lever 4, the turnover pull rod mechanisms A and A', the rotating levers C and C 'and the corresponding main springs D and D' at the common side and the standby side in the support 1 so as to realize the corresponding switching-on and switching-off operation and the operation of the double switching-off positions between the common side power supply and the standby side power supply, the support 1 is also provided with a double switching-off position locking and unlocking mechanism F, and the output system 3 can be arranged at the corresponding rotating levers C at the common side and the standby side when in the switching-on positions of the common side and the standby side, c ', the main springs D and D ' and the turnover pull rod mechanisms A and A ' are self-locked under the combined action. When the output system 3 is located at the double-split position, the output system can be locked or unlocked by the double-split position locking and unlocking mechanism F.

The common side and the standby side of the bracket 1 are provided with corresponding indicating mechanisms E and E ', and the corresponding rotating levers C and C ' are linked with the corresponding indicating mechanisms E and E ' to indicate the corresponding switching-on and switching-off conditions of the power supply at the common side and the power supply at the standby side.

As shown in fig. 1,3a,3b and 4, the bracket 1 includes a pair of side plates 101,101 ', and the pair of side plates 101, 101' are connected and fixed together by a plurality of bracket connecting shafts 1 a. The bracket 1 is provided with a mounting through hole 102 for mounting an output system 3, the common side and the standby side of the bracket 1 positioned at two sides of the mounting through hole 102 are provided with corresponding arc-shaped long slotted holes 103, 103', corresponding mounting shafts 104,104 'are arranged on the inner side surface of the bracket 1 between the mounting through hole 102 and the corresponding arc-shaped slotted holes 103, 103', an arc-shaped horizontal slot hole 109 is arranged on the front surface of the bracket 1 below the through hole, a waist-shaped vertical slot hole 110 is arranged below the arc-shaped horizontal slot hole 109 and penetrates through the bracket 1, an indicator return spring mounting shaft 105 is arranged on the front side surface in the bracket 1 and below the kidney-shaped vertical slot hole 110, corresponding electromagnet mounting parts 106,106 'are arranged on the front surface and the rear surface of the bracket 1 below the corresponding arc-shaped slotted holes 103, 103', a toggle lever mounting shaft 107 is arranged on the front surface of the bracket 1 at a corresponding position below the mounting through hole 102. The common side and the standby side of the bottom on the front surface of the bracket are provided with corresponding toggle lever return spring mounting shafts 108,108 ', and the bracket between the corresponding toggle lever return spring mounting shafts 108, 108' is provided with an unlocking electromagnet mounting part 111.

As shown in fig. 1 and 9, the toggle lever 4 is provided with corresponding unlocking lever triggering portions 403,403 ' on the normal side and the standby side, the toggle lever 4 is linked with the dual-split position locking and unlocking mechanism F by the corresponding unlocking lever triggering portions 403,403 ', the normal side and the standby side of the toggle lever 4 are connected with corresponding toggle lever return springs 4a,4a ', the toggle lever return springs 4a,4a ' can provide a force for the toggle lever 4 during the rotation of the toggle lever 4 between the normal side and the standby side, one end of each of the corresponding toggle lever return springs 4a,4a ' is mounted on the corresponding toggle lever return spring hanging portion 404,404 ' on the toggle lever 4, and the other end is mounted on the corresponding toggle lever return spring mounting shaft 108,108 ' on the support 1. The toggle lever 1 is provided with an unlocking limit shaft via hole 405 for allowing the unlocking limit shaft F502 to pass through, and the toggle lever 1 is rotatably mounted on the toggle lever mounting shaft 107 by utilizing the toggle lever mounting hole 406 thereon.

As shown in fig. 1,2 and 5, the respective flip lever mechanisms a, a ' of the normal side and the standby side include respective flip levers A1, A1 ', the respective flip levers A1, A1 ' are rotatably mounted on the respective mounting shafts 104,104 ' by means of mounting holes A1a, A1a ', the respective flip levers A1, A1 ' are pivotally connected to the respective sides of the slide plate 2 by means of respective slide plate shafts a2, a2 ', the respective slide plate shafts a2, a2 ' pass through the slide plate connecting holes A1b, A1b ' of the respective flip levers A1, A1 ' and the respective flip lever connecting holes 2a,2a ' of the slide plate 2 shown in fig. 8. The corresponding turning levers A1 and A1 'are provided with corresponding turning limit linkage shafts a101 and a 101', the two ends of the corresponding turning limit linkage shafts a101 and a101 'shown in fig. 10 pass through the turning limit linkage shaft mounting holes A1c and A1 c' on the turning levers A1 and A1 ', the corresponding arc-shaped long slotted holes 103 and 103' are located, the corresponding turning levers A1 and A1 'are further provided with pull rod linkage parts a102 and a 102', in the present embodiment, as shown in fig. 5, the pull rod linkage parts a102 and a102 'are cylindrical protrusions, as shown in fig. 1,2 and 14, the pull rod A3 and A3' corresponding to the common side and standby side are provided with pull rod linkage holes a301 and a301 'corresponding to the pull rod A3 and A3' and the turning lever mounting holes A1 and A1 'corresponding to the pull rod linkage holes a102 and a 102' on the corresponding turning levers A1 and A1 'and A3' and 1, the pull rod linkage parts A102 and A102 ' on the A1 ' are installed in a linkage mode, electromagnet linkage parts A302 and A302 ' are further arranged on the corresponding pull rods A3 and A3 ', the electromagnet linkage parts A302 and A302 ' are linkage holes, and the corresponding pull rods A3 and A3 ' are in linkage with iron cores B01 and B01 ' of the corresponding electromagnets B and B ' by means of the electromagnet linkage parts A302 and A302 '.

As shown in fig. 1,2 and 6, the rotation levers C, C ' on the common side and the spare side in the rack 1 are rotatably mounted on the corresponding mounting shafts 104,104 ' by means of rotation lever mounting holes Ca, Ca ', the corresponding rotation levers C, C ' are linked with the output system 3 by means of corresponding rotation linking shafts C1, C1 ', both ends of the rotation linking shafts C1, C1 ' penetrate through the rotation linking shaft mounting holes C1a, C1a ' of the rotation levers C, C ', and indicator linking parts C2, C2 ' are further provided on the corresponding rotation levers C, C ' for linking the corresponding indicator mechanisms E, E '. One end of each main spring D and D ' corresponding to the common side and the standby side in the support 1 is arranged on the corresponding overturning limiting linkage shaft A101 and A101 ', and the other end is arranged on the corresponding rotating linkage shaft C1 and C1 '.

As shown in fig. 1 and 2, the output system 3 includes a mounting shaft sleeve 301, the mounting shaft sleeve 301 is mounted in the mounting through hole 102 and can rotate, the output shaft 302 is mounted in the mounting shaft sleeve 301, the mounting shaft sleeve 301 can drive the output shaft 302 to rotate in the process of rotating in the mounting through hole 102, as shown in fig. 7, corresponding linkage cantilevers 301a,301a ' are disposed on the mounting shaft sleeve 301 on the normal side and the standby side, linkage slots 301a01,301a01 ' are disposed on the corresponding linkage cantilevers 301a,301a ' and linkage limit portions 301a0101,301a0101 ' are disposed in the linkage slots 301a01,301a01 ' and corresponding rotation linkage shafts C1, C1 ' are disposed in the corresponding linkage slots 301a01,301a01 ' so that the mounting shaft sleeve 301 is linked with the output shaft 302 in the process of rotating the normal side and the standby side, the excircle axial plane of the mounting shaft sleeve 301 is provided with a double-division linkage part 301b, and the double-division linkage part 301b penetrates through the arc-shaped horizontal slotted hole 109 to be linked with the double-division position locking and unlocking mechanism F.

As shown in fig. 1, two position-splitting locking unlocking mechanism F includes limiting plate F1, limiting plate F1 utilizes limiting plate mounting hole F1a suit above that on the mounting axle sleeve 301, two position-splitting linkage portions 301b on the mounting axle sleeve 301 pass arc horizontal slotted hole 109 with the spacing hole F101 linkage of waist shape on the limiting plate F1 still is equipped with spacing axle linkage portion F102 of unblock on the limiting plate F1 shown in fig. 15, spacing axle linkage portion F102 of unblock is the protruding in the spacing axle abdicating hole F1b of unblock on the limiting plate F1. As shown in fig. 12a and 12b, the unlocking levers F2 and F2 'corresponding to the normal side and the standby side are provided with a first unlocking kidney-shaped long hole F201, F201', the first unlocking kidney-shaped long hole F201, F201 'is hung on one end side of the corresponding overturning limiting linkage shaft a101, a 101' penetrating through the corresponding arc-shaped long groove hole 103,103 ', the other end of the corresponding unlocking lever F2, F2' is provided with a second unlocking kidney-shaped long hole F202, F202 ', as shown in fig. 11, the iron core F501 of the unlocking electromagnet F5 is provided with an unlocking limiting shaft F502, the unlocking limiting shaft F502 penetrates through the waist-shaped vertical groove hole 110 on the clamping plate 1 and is linked with the unlocking shaft limiting linkage part F102 on the limiting plate F, the other ends of the corresponding unlocking levers F2, F2' are hung on the unlocking limiting shaft F502 by the second unlocking waist-shaped long hole F202, F202 ', and the corresponding unlocking lever F2, F2' is connected with the corresponding unlocking lever return spring F3, f3 'can provide a reset force for the corresponding unlocking levers F2, F2' to reset towards the central position of the operating system, and the corresponding unlocking levers F2, F2 'are provided with unlocking lever passive parts F203, F203', and the unlocking lever passive parts F203, F203 'are linked with the corresponding unlocking lever touching parts 403, 403' on the toggle lever 4. One end of each unlocking lever return spring F3, F3 ' is arranged on an unlocking lever return spring mounting shaft F204, F204 ' on the corresponding unlocking lever F2, F2 ', the other end of each unlocking lever return spring mounting shaft is arranged on an unlocking lever return spring mounting ring F4, and the unlocking lever return spring mounting ring F4 is sleeved on the mounting shaft sleeve 301 and is positioned outside the support 1.

As shown in fig. 1, the indicating mechanism E, E 'corresponding to the common side and the standby side in the rack 1 includes indicating members E1, E1', the indicating members E1, E1 'are rotatably mounted on the corresponding mounting shafts 104, 104' by using indicating member mounting holes E1a, E1a ', as shown in fig. 13a and 13b, the indicating members E1, E1' are provided with indicating touch portions E101, E101 'and indicating linkage portions E102, E102', in this embodiment, the indicating touch portions E101, E101 'are bends on the indicating members E1, E1'. The indicating touch parts E101 and E101 ' are correspondingly linked with indicating part linkage parts C2 and C2 ' arranged on the rotating levers C and C ', the indicating linkage parts E102 and E102 ' of the corresponding indicating mechanisms E and E ' are linked with corresponding overturning limiting linkage shafts A101 and A101 ', return spring connecting parts E103 and E103 ' are further arranged on the indicating parts E1 and E1 ', corresponding indicating part return springs E2 and E2 ' on the common side and the standby side in the bracket 1 are respectively connected with the corresponding return spring connecting parts E103 and E103 ' at one end, and are connected with corresponding indicating part return spring mounting shafts 105 at the other end, and closing and opening indicating areas E104 and E104 ' are arranged on the indicating parts E1 and E1 ' and are used for indicating closing and opening brake conditions in the rotating process of the indicating parts E1 and E1 '.

In this embodiment, when the standby power supply is in a closed on state, the position states of the components are as follows: as shown in fig. 16, the turnover limiting linkage shaft a101 ' on the standby side is located at the lower end position of the arc-shaped long slot hole 103 ', while the turnover lever A1 ' is located at the maximum angle position of clockwise rotation, and the iron core B01 ' of the electromagnet B ' on the standby side is in a retracted state; because the overturning levers A1 and A1' are simultaneously linked with the sliding plate 2, the overturning limiting linkage shaft A101 is positioned at the upper part of the arc-shaped long slotted hole 103, the overturning lever A1 at the common side is positioned at the maximum angle position of clockwise rotation, and the iron core B01 of the electromagnet B at the common side is in an extending state.

As shown in fig. 16, the rotation lever C ' of the standby side is located at the maximum position of its counterclockwise rotation by the main spring D ', and its indicator piece interlocking part C2 ' contacts with the indicator touching part E101 ' of the indicator piece E1 ' and overcomes the spring force of the indicator piece return spring E2 ' to make the indicator piece E1 ' show the closing state; the rotating lever C on the common side is positioned at the maximum position of counterclockwise rotation under the action of the main spring D, the indicating piece linkage part C2 is not contacted with the indicating touch part E101 of the indicating piece E1, and under the action of the spring force of the indicating piece return spring E2, the indicating linkage part E102 is limited by the overturning limiting linkage shaft A101, so that the indicating piece E1 displays the opening state as shown in figure 17.

As shown in fig. 17, a connecting line of the rotation centers of the normally-used side overturning limiting linkage shaft a101 and the normally-used side rotation linkage shaft C1 is located above the rotation center O of the normally-used side rotation lever C, a connecting line of the rotation centers of the standby side overturning limiting linkage shaft a101 'and the standby side rotation linkage shaft C1' is located below the rotation center O 'of the standby side rotation lever C', and at this time, the rotation lever C receives the spring force of the main spring D and receives the counterclockwise torque, and the rotation lever C receives the spring force of the main spring D and receives the counterclockwise torque; the normal line a of the contact surface between the linkage limiting part 301a0101 in the linkage slot hole 301a01 on the common side and the rotation linkage shaft C1 on the common side on the mounting shaft sleeve 301 points to the rotation center O of the rotation lever C on the common side, in this embodiment, the strokes of the electromagnet B on the common side and the electromagnet B 'on the standby side are longer, at this time, the overturn limiting linkage shaft a101 on the common side is located at the upper top end of the arc-shaped long slot hole 103 on the common side, the overturn limiting linkage shaft a 101' on the standby side is located at the lower top end of the arc-shaped long slot hole 103 'on the standby side to realize limiting, meanwhile, the strokes of the electromagnet B on the common side and the electromagnet B' on the standby side can be directly used to realize limiting of the positions of the overturn limiting linkage shaft a101 on the common side and the overturn limiting linkage shaft a101 'on the standby side, the specific process is that the strokes of the electromagnet B on the common side and the electromagnet B' on the standby side are designed to be relatively shorter, the corresponding iron core B01 'and the iron core B01 can not move after moving to the bottom, thereby achieving the purpose of limiting the positions of the corresponding overturning limiting linkage shaft A101 at the common side and the overturning limiting linkage shaft A101' at the standby side. Under the combined action of the rotation lever C and the rotation lever C', as shown in fig. 18, the mounting boss 301 is located at its maximum position of clockwise rotation (i.e., the standby-side power supply on position). The double-position-division linkage part 301b of the mounting shaft sleeve 301 is positioned in a kidney-shaped limiting hole F101 in the limiting plate F1, and the unlocking limiting shaft linkage part F102 in the limiting plate F1 is positioned on the left side of the unlocking limiting shaft F502; an iron core F501 of the unlocking electromagnet F5 is in an extending state, the double-position linkage part 301b is a columnar protrusion on the outer circumference of the mounting shaft sleeve 301, and the unlocking limit shaft linkage part F102 is a boss in the hole in the limit plate F1. The right side of the slide plate linkage part 401 of the toggle lever 4 is contacted with the driven shaft 2b of the slide plate 2 under the spring force of the toggle lever return springs 4a and 4 a', as shown in fig. 19, in this embodiment, the slide plate linkage part 401 is a horizontal hole.

As shown in fig. 19, due to the reset action of the unlocking lever reset spring F3, the unlocking lever F2 has the overturning limiting linkage shaft a101 located at the leftmost position of the unlocking kidney-shaped long hole i F201, and the unlocking limiting shaft F502 located at the rightmost position of the unlocking kidney-shaped long hole ii F202; due to the reset action of an unlocking lever reset spring F3 ', the unlocking lever F2 ' enables the overturning limiting linkage shaft A101 ' to be located at the rightmost position of the unlocking kidney-shaped long hole I F201 ', and the unlocking limiting shaft F502 to be located at the rightmost position of the unlocking kidney-shaped long hole II F202 '.

When the standby side power supply is switched from a closing connection state to a double-division position: the toggle lever 4 is rotated anticlockwise, the toggle lever 4 is linked with the sliding plate 2 and enables the sliding plate 2 to move from right to left, and the sliding plate 2 is linked with the turnover levers A1 and A1' to rotate anticlockwise simultaneously; or the electromagnet B on the common side is electrified to enable the iron core B01 to retract, the pull rod A3 is driven to drive the overturning lever A1 to rotate anticlockwise, and the overturning lever A1 drives the overturning lever A1' to rotate anticlockwise through the sliding plate 2 in the rotating process as shown in the attached drawing 20.

When the turning lever A1 rotates to the point that the connecting line of the turning limit linkage shaft a101 and the rotation linkage shaft C1 passes through the rotation center O of the corresponding rotation lever C, the turning lever A1 'also rotates to the point that the connecting line of the turning limit linkage shaft a 101' and the rotation linkage shaft C1 'passes through the rotation center O' of the rotation lever C ', the main spring D on the normal side does not generate a moment of rotation for the corresponding rotation lever C so as to make the corresponding rotation lever C be at the dead point position, and the main spring D' on the standby side does not generate a moment of rotation for the corresponding rotation lever C so as to make the corresponding rotation lever C be at the dead point position, as shown in fig. 21.

As shown in fig. 22, the overturning lever A1 and the overturning lever A1 ' continue to rotate counterclockwise until the rotation is in place, at this time, a connecting line between the rotation centers of the overturning limit linkage shaft a101 and the rotation linkage shaft C1 is located below the rotation center O of the rotation lever C, a connecting line between the overturning limit linkage shaft a101 ' and the rotation linkage shaft C1 ' is located above the rotation center O ' of the rotation lever C ', the rotation lever C receives the spring force of the main spring D and receives clockwise torque, and the rotation lever C receives the spring force of the main spring D and receives clockwise torque; the rotating lever C rotates clockwise to drive the rotating linkage shaft C1 to slide in the linkage groove hole 301a01, the rotating lever C 'rotates clockwise to drive the rotating linkage shaft C' 1 to slide in the linkage groove hole 301a01 ', the rotating linkage shaft C and the rotating linkage shaft C' are linked with the mounting shaft sleeve 301 to rotate anticlockwise in the sliding process, the anticlockwise rotation of the mounting shaft sleeve 301 is linked with the output shaft 302 to output anticlockwise rotation, and therefore the standby side power supply is switched off.

As shown in fig. 23, during the process of rotating the toggle lever 4 counterclockwise, the unlocking lever trigger 403 is linked with the unlocking lever driven part F203 of the unlocking lever F2, and overcomes the spring force of the unlocking lever return spring F3, so that the flip-over limit linkage shaft a101 slides in the unlocking kidney-shaped slot i F201 of the unlocking lever F2, and the unlocking limit shaft F502 slides in the unlocking kidney-shaped slot i F202 of the unlocking lever F2, and as a result, the unlocking lever F2 slides in a direction away from the center of the operating system; after the toggle lever 4 is rotated counterclockwise to a certain position, the toggle lever 4 is released, and the clockwise reset operation is performed under the action of the toggle lever reset spring 4 a', the unlocking lever touch part 403 is separated from the unlocking lever passive part F203 of the unlocking lever F2, the unlocking lever F2 is reset in a direction close to the center of the operating system under the action of the unlocking lever reset spring F3, and finally the unlocking lever passive part F203 is located below the unlocking lever touch part 403 of the toggle lever 4 as shown in fig. 24.

When the mounting bushing 301 rotates counterclockwise, the double-position linkage part 301b thereof links the waist-shaped limiting hole F101 on the limiting plate F1 and rotates the limiting plate F1 counterclockwise; during the counterclockwise rotation of the limiting plate F1, the unlocking limiting shaft linkage part F102 is limited by the unlocking limiting shaft F502 (at this time, the unlocking limiting shaft linkage part F102 is located on the left side of the unlocking limiting shaft F502), and after the limiting plate F1 is limited, the waist-shaped limiting hole F101 also limits the counterclockwise rotation of the mounting shaft sleeve 301 through the double-positioning linkage part 301 b; at this time, the connecting line of the turning limit linkage shaft A101 and the rotation center of the rotation linkage shaft C1 is still positioned below the rotation center O of the rotation lever C, the connecting line of the turning limit linkage shaft A101 ' and the rotation linkage shaft C1 ' is still positioned above the rotation center O ' of the rotation lever C ', the rotation lever C receives the spring force of the main spring D and receives clockwise torque, and the rotation lever C ' receives the spring force of the main spring D and receives clockwise torque as shown in the attached drawings 25a and 25 b;

after the mounting shaft sleeve 301 is limited by the unlocking limit shaft F502 through the limit plate F1, the operating system is in a state where the standby side power supply and the common side power supply are not connected, which is a double-division position state of the dual-power automatic transfer switch.

When the double-division position state is switched to the switching-on and switching-on of the standby side power supply: in this state, the electromagnet B ' on the standby side is energized to retract the iron core B01 ', or the toggle lever 4 is rotated clockwise to rotate the flip levers a1 and a1 ' clockwise; after the rotation is in place, the connecting line of the rotation centers of the overturning limiting linkage shaft A101 and the rotation linkage shaft C1 is located above the rotation center O of the rotation lever C, the connecting line of the overturning limiting linkage shaft A101 'and the rotation linkage shaft C1' is located below the rotation center O 'of the rotation lever C', the rotation levers C and C 'rotate anticlockwise under the action of anticlockwise torque, and the rotation levers C and C rotate clockwise through the linkage mounting shaft sleeves 301 of the rotation linkage shafts C1 and C1', so that the standby side power supply of the operating system is switched on as shown in the attached figure 19.

When the present embodiment switches from the dual-split position state to the normal-side power switch-on: when the two-branch position state is achieved, the limiting plate F1 is limited by the unlocking limiting shaft F502, the unlocking electromagnet F5 is electrified to enable the iron core F501 to retract, the iron core F501 is linked with the unlocking limiting shaft F502 and enables the unlocking limiting shaft F502 to move downwards in the kidney-shaped vertical slot hole 110, the unlocking limiting shaft F502 is separated from contact with the unlocking limiting shaft linkage portion F102 of the limiting plate F1 in the moving process, the locking of the limiting plate F1 is released, meanwhile, the limiting plate F1 also releases the locking of the two-branch linkage portion 301b of the mounting shaft sleeve 301, under the action of the main springs D and D ', the rotating levers C and C' are linked with the mounting shaft sleeve 301 to rotate anticlockwise, the output shaft 302 is driven to rotate anticlockwise, and the common-side power supply switching-on is achieved as shown in the attached figures 26 and 27.

Or, in the double-split position state, the limit plate F1 is limited by the unlocking limit shaft F502, the toggle lever 4 is rotated counterclockwise at this time, the unlocking lever touch part 403 presses the unlocking lever driven part F203 of the unlocking lever F2, and the unlocking lever F2 rotates clockwise around the overturning limit linkage shaft a101 under the action of the unlocking lever return spring F3; during the clockwise rotation of the unlocking lever F2, the unlocking lever F2 is linked with the unlocking limit shaft F502 to move downwards, and the unlocking limit shaft F502 slides in the kidney-shaped vertical slot 110, and during the downward movement of the unlocking limit shaft F502, the unlocking limit shaft F502 is linked with the unlocking limit shaft linkage part F102 of the limit plate F1, so that the locking of the limit plate F1 is released, as shown in fig. 28, and meanwhile, the limit plate F1 is also released from the locking of the double-positioning linkage part 301b of the mounting shaft sleeve 301, and under the action of the main springs D and D ', the rotating lever C and C' are linked with the mounting shaft sleeve 301 to rotate anticlockwise, so that the output shaft 302 is driven to rotate anticlockwise, and the closing of the power supply at the common side is realized, as shown in fig. 28.

After the common side power source completes the closing action, the connecting line of the rotation centers of the standby side overturning limiting linkage shaft A101 'and the standby side rotating linkage shaft C1' is positioned above the rotation center of the standby side rotating lever C ', the connecting line of the rotation centers of the standby side overturning limiting linkage shaft A101 and the common side rotating linkage shaft C1 is positioned below the rotation center of the common side rotating lever C, the normal line b of the contact surface between the linkage limiting part 301a 0101' in the standby side linkage slotted hole 301a01 'on the installation shaft sleeve 301 and the standby side rotating linkage shaft C1' points to the rotation center of the standby side rotating lever C ', at the moment, the standby side overturning limiting linkage shaft A101' is positioned at the upper top end of the standby side arc-shaped long slotted hole 103 ', the common side overturning limiting linkage shaft A101 is positioned at the lower top end of the common side arc-shaped long slotted hole 103 to realize the limiting, namely, the installation shaft sleeve 301 is locked by the rotating lever C', no clockwise rotation is possible as shown in figure 29.

The indication state of the indicator in this embodiment: when the standby side power supply is in a switching-on state: the rotating lever C 'on the standby side is positioned at the maximum position of counterclockwise rotation under the action of the main spring D', the indicator piece linkage part C2 'of the rotating lever C is contacted with the indication touch part E101' of the indicator piece E1 ', and the spring force of the indicator piece return spring E2' is overcome, so that the indicator piece E1 'is positioned at the maximum position of counterclockwise rotation, and the indicator piece E1' displays a closing state; meanwhile, the rotating lever C on the normal side is located at the maximum position of counterclockwise rotation under the action of the main spring D, the indicator linkage part C2 is not in contact with the indicating trigger part E101 of the indicator E1, and under the action of the spring force of the indicator return spring E2, the indicator E1 is located at the maximum position of counterclockwise rotation, the indicating linkage part E102 is limited by the overturn limiting linkage shaft a101, so that the indicator E1 displays the opening state as shown in fig. 30.

When the operating system is in a double-division state: the mounting shaft sleeve 301 is limited in a double-division state, at the moment, the indicating piece linkage part C2 ' of the rotating lever C ' is not in contact with the indicating piece linkage part C2 ' and the indicating touch part E101 ' of the indicating piece E1 ', and the spring force action of the indicating piece return spring E2 ' enables the indicating piece E1 ' to display a brake-separating state; meanwhile, the indicator piece interlocking part C2 of the rotating lever C is not in contact with the indication trigger part E101 of the indicator piece E1, and the indicator piece E1 displays the opening state under the spring force of the indicator piece return spring E2, as shown in fig. 31.

When the side power is in the on-state frequently: the rotating lever C on the common side is positioned at the maximum position of clockwise rotation under the action of a main spring D, the indicating piece linkage part C2 of the rotating lever C is contacted with the indicating touch part E101 of the indicating piece E1, the spring force of the indicating piece return spring E2 is overcome, the indicating piece E1 is positioned at the maximum position of clockwise rotation, and the indicating piece E1 displays a closing state; meanwhile, the rotating lever C 'on the standby side is located at the maximum position of clockwise rotation under the action of the main spring D', the indicator linkage part C2 'is not in contact with the indicator touching part E101 of the indicator E1, and under the action of the spring force of the indicator return spring E2', the indicator E1 'is located at the maximum position of clockwise rotation, which indicates that the linkage part E102' is limited and limited by the overturn limiting linkage shaft a101 ', so that the indicator E1' shows the opening state, as shown in fig. 32.

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 these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims (3)

1. A switching position locking structure of a switching device operating system, characterized in that: when a power supply at a common side is positioned at a closing switch-on position, a connecting line of a turnover limiting linkage shaft at a standby side and a rotation center of a rotation linkage shaft at a standby side is positioned above a rotation center of a rotation lever at the standby side, a connecting line of the turnover limiting linkage shaft at the common side and the rotation center of the rotation linkage shaft at the common side is positioned below the rotation center of the rotation lever at the common side, a normal line of a contact surface of a linkage limiting part in a linkage slotted hole at the standby side on an installation shaft sleeve and the rotation linkage shaft at the standby side points to the rotation center of the rotation lever at the standby side, the turnover limiting linkage shaft at the standby side is positioned at the upper top end of an arc-shaped long slotted hole at the standby side, and the turnover limiting linkage shaft at the common side is positioned at the lower top end of the arc-shaped long slotted hole at the common side;

when the standby side power supply is in a closing switch-on position, a connecting line of a turning limiting linkage shaft of the common side and a rotation center of a rotation linkage shaft of the common side is located above a rotation center of a rotation lever of the common side, a connecting line of a turning limiting linkage shaft of the standby side and a rotation center of a rotation linkage shaft of the standby side is located below a rotation center of a rotation lever of the standby side, a normal line of a contact surface of a linkage limiting portion in a linkage slotted hole of the common side and the rotation linkage shaft of the common side on the mounting shaft sleeve points to the rotation center of the rotation lever of the common side, the turning limiting linkage shaft of the common side is located at the upper top end of an arc-shaped long slotted hole of the common side, and the turning limiting linkage shaft of the standby side is located at the lower top end of the arc-shaped long slotted hole of the standby side.

2. The switching position locking structure of the switching device operating system according to claim 1, wherein: when the corresponding overturning levers of the common side and the standby side rotate to the connecting line of the corresponding overturning limiting linkage shaft and the rotation center of the corresponding rotation linkage shaft passes through the rotation center of the corresponding rotation lever, the corresponding main springs of the common side and the standby side do not enable the corresponding rotation lever to generate rotating moment, and therefore the corresponding rotation lever is located at a dead point position.

3. The switching position locking structure of the switching device operating system according to claim 1, wherein: one end of a main spring corresponding to the common side and the standby side in the bracket is arranged on the corresponding overturning limiting linkage shaft, and the other end of the main spring is arranged on the corresponding rotating linkage shaft.

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