CN218038908U

CN218038908U - Change-over switch electrical apparatus

Info

Publication number: CN218038908U
Application number: CN202221913290.5U
Authority: CN
Inventors: 李志明; 但海龙; 吴金辉; 王晓平
Original assignee: Zhejiang Mote Electric Co ltd
Current assignee: Zhejiang Mote Electric Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-12-13
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a change-over switch electric appliance, the switching-closing component of which comprises an input swing frame, two groups of output swing frames, a guide frame, a conduction rod and a connecting rod, wherein the input swing frame is sleeved on an input shaft to synchronously rotate, and two groups of conduction rods are respectively hinged on the two sides of the input swing frame; a waist-shaped hole is formed in the conduction rod along the length direction of the conduction rod, a guide shaft capable of sliding penetrates through the waist-shaped hole, the guide shaft is rotatably connected with a guide frame and a connecting rod respectively, one end of the guide frame is rotatably arranged on the mounting frame, the motion track of the guide shaft is defined as an arc around the rotating shaft of the guide frame, the connecting rod is hinged with a swing frame, and the swing frame is sleeved on the output shaft to synchronously rotate; an elastic piece is arranged between the two swing frames, so that when one swing frame moves, an elastic force is applied to the other swing frame. The utility model discloses produce differential state at the divide-shut brake in-process, do not take the opposite side action when making one side contact close a floodgate and separating brake, each other does not influence the interference between the structure.

Description

Change-over switch electrical apparatus

Technical Field

The utility model belongs to the technical field of the electrical switch and specifically relates to a change over switch electrical apparatus is related to.

Background

The dual-power transfer switch is provided with a common switch and a standby switch, an input shaft is connected with an operating mechanism, the operating mechanism drives a rotating shaft to rotate through a common electromagnetic coil and a standby electromagnetic coil to perform two-way switching-on and switching-off or manual switching through a handle, the rotating shaft is connected to output shafts of a common side and a standby side through a switching-on and switching-off assembly, and the output shafts are connected with specific moving contacts to perform switching-on and switching-off with fixed contacts. Divide-shut brake subassembly carries out two tunnel switching actions through link assembly or gear assembly, and it has both guaranteed the linkage function of two tunnel, and two tunnel power supply interlocks must not be put through simultaneously again, when divide-shut brake all the way, must not influence the current state of another way contact, and then accomplish the orderly divide-shut brake to two way sound contacts, the utility model designs a new connecting rod structure of a section carries out the drive of contact, and integrated linkage and differential function reduce whole space that occupies under the state of guaranteeing stable structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's is not enough, provides a change over switch electrical apparatus, makes the connecting rod structure of combined type when guaranteeing side commonly used and the linkage of reserve side, produces differential state at the divide-shut brake in-process, guarantees the separating brake efficiency of moving contact, and the combined floodgate process of moving contact and static contact keeps orderly stable, and the opposite side action is not taken with the separating brake to the combined floodgate of one side, and whole space that occupies is less, optimizes structural configuration.

The utility model adopts the following technical proposal: a transfer switch electric appliance comprises a mounting rack, an operating mechanism and a contact assembly, wherein the operating mechanism and the contact assembly are arranged on the mounting rack, the operating mechanism comprises an input shaft, a common side output shaft, a standby side output shaft and a switching-on and switching-off assembly, the input shaft, the common side output shaft and the standby side output shaft are rotatably arranged on the mounting rack, the input shaft, the common side output shaft and the standby side output shaft are respectively connected through the switching-on and switching-off assembly, the contact assembly comprises a plurality of groups of moving contacts and static contacts which are respectively arranged on the common side and the standby side, the common side output shaft is connected with the moving contacts on the common side to perform switching-on and switching-off operation with the static contacts on the standby side, the switching-on and switching-off assembly comprises a group of input swing frames, output swing frames, guide frames, conducting rods and connecting rods, the common side and the standby side are respectively provided with the moving contacts, the input swing frames are sleeved on the input shaft to synchronously rotate, and the two sides of the input swing frames are respectively hinged with the conducting rods on the common side and the standby side; the transmission rod is provided with a waist-shaped hole along the length direction, a guide shaft capable of sliding penetrates through the waist-shaped hole, the guide shaft is rotatably connected with a guide frame and a connecting rod respectively, one end of the guide frame is rotatably arranged on the mounting frame, the motion track of the guide shaft is defined as an arc around the rotating shaft of the guide frame, the connecting rod is hinged with an output swing frame, and the output swing frames on the common side and the standby side are sleeved on the output shaft on the common side and the output shaft on the standby side respectively to rotate synchronously; a first elastic element is arranged between the output swing frames of the common side and the standby side, so that when one side moves, an elastic force is applied to the other side.

As an improvement, every group the moving contact be a plurality of and set up on an arrangement frame, the installation cavity that link up around a plurality of is seted up to the arrangement frame, and a plurality of moving contact one-to-one holds in the installation cavity, and a plurality of moving contact anterior portions stretch out the installation cavity, and the rear portion is spacing in the arrangement frame through an installation axle, set up a second elastic component in the installation cavity and contradict the moving contact, make the moving contact can float around the installation axle and exert the restoring force by the second elastic component.

As an improvement, the upper part of the arrangement frame is hinged with a connecting frame, the other end of the connecting frame is hinged with a swinging frame, and the swinging frame is connected to a common side output shaft or a standby side output shaft.

As an improvement, the link is including erecting frame, crossbearer, first pivot and second pivot, erect the frame for controlling two sets ofly, two sets of perpendicular framves are connected through two sets of crossbearers, the front end of erecting the frame and wearing to locate simultaneously the upper portion of arranging the frame are worn to locate by first pivot, the rear end of erecting the frame and wearing to locate simultaneously in the second pivot is worn to locate on the swing span.

As an improvement, the second elastic element is a spring, a convex column for limiting one end of the spring is arranged on the inner wall of the mounting cavity, and a limiting groove for limiting the other end of the spring is arranged on the movable contact.

As an improvement, an arc convex wall is arranged below one surface of the arrangement frame facing the front portion of the movable contact, an arc concave wall is arranged behind the fixed contact of the installation frame, and when the arrangement frame and the movable contact move to the state that the movable contact is contacted with the fixed contact, the arc convex wall and the arc concave wall are overlapped to block a space behind the movable contact and the fixed contact.

As an improvement, be provided with an arc hole on the output swing span, it is provided with spacing post to correspond the arc hole on the mounting bracket, the swing of output swing span makes the relative spacing post of arc hole carry out the displacement, and the back and forth swing extreme position of output swing span is restricted by the spacing post of contradicting at arc hole both ends.

As an improvement, an outer arm and an inner arm are respectively formed on the inner side and the outer side of the output swing frame, the inner arm is hinged with a connecting rod, and the outer arm is connected with a first elastic piece; the first elastic part is a tension spring, and the end part of the first elastic part is hooked on the transverse shaft of the outer arm.

As an improvement, the input swing frame, the output swing frame, the guide frame, the conducting rod and the connecting rod are respectively provided with a front sheet body and a rear sheet body, and the front sheet body and the rear sheet body are connected into a whole through a transverse connecting sheet.

As an improvement, the input swing frame is provided with a blocking arm on one side far away from the output shaft at the common side and the output shaft at the standby side, and grooves for clamping and limiting external mechanisms are arranged on two sides of the blocking arm.

The utility model has the advantages that: the transmission rod at one side is driven to move to the side wall of the waist-shaped hole to abut against the guide shaft to move through the waist-shaped hole formed in the transmission rod at one side in the process of inputting the swinging frame to move, so that the action is transmitted to the output shaft through the connecting rod and the output swinging frame to complete the closing of the side; the linkage of the common side and the standby side is ensured by means of a combined connecting rod structure on the whole, meanwhile, a differential state is generated in the switching-on and switching-off process, the switching-on and switching-off of one side do not drive the other side to act, the switching-off efficiency of the movable contact is ensured, and the switching-on process of the movable contact and the static contact is kept orderly and stable; the guide frame limits the moving track of the guide shaft, determines the moving and staying states among the connecting rod structures on the one hand, reduces the moving space among the connecting rods on the other hand, reduces the space occupied by the whole movement, and optimizes the structural layout.

Drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of an operating mechanism of the dual power transfer switch during opening.

Fig. 2 is a schematic diagram of the three-dimensional structure of the operating mechanism of the dual power transfer switch when the standby side is switched on.

Fig. 3 is a schematic view of the three-dimensional structure of the operating mechanism of the dual power transfer switch when the switch is switched on at the common side.

Fig. 4 is a schematic perspective view of the spare side part of the switching-closing assembly of the present invention.

Fig. 5 is a schematic perspective view of a common side contact assembly of the dual power transfer switch of the present invention.

Fig. 6 is a schematic perspective view of the moving contact of the present invention.

Fig. 7 is a schematic longitudinal sectional structural view of the movable contact of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1, 2, 3, 4, 5, 6, and 7, the present invention is a specific embodiment of the transfer switch apparatus. This embodiment includes mounting bracket 0 and sets up operating device A and contact subassembly B on mounting bracket 0, operating device A includes input shaft A1, side output shaft A2 commonly used, reserve side output shaft A3 and divide-shut brake subassembly A4, rotatable setting input shaft A1 on mounting bracket 0, side output shaft A2 commonly used and reserve side output shaft A3, input shaft A1 and side output shaft A2 commonly used, connect respectively through divide-shut brake subassembly A4 between the reserve side output shaft A3, contact subassembly B includes multiunit moving contact B1 and the static contact B0 that side commonly used and reserve side set up respectively, moving contact B1 that side output shaft A2 commonly used is connected the side commonly used carries out the divide-shut brake operation with side static contact B0 commonly used, moving contact B1 that reserve side output shaft A3 is connected the reserve side carries out the divide-shut brake operation with reserve side static contact B0, its characterized in that: the switching-on and switching-off assembly A4 comprises a group of input swing frames A40, output swing frames A41 and A42 which are arranged on the common side and the standby side, guide frames A411 and A421, conducting rods A412 and A422, connecting rods A413 and A423, wherein the input swing frames A40 are sleeved on an input shaft A1 to synchronously rotate, and the two sides of the input swing frames A40 are respectively hinged with the conducting rods A412 and A422 on the common side and the standby side; the transmission rods A412 and A422 are provided with waist-shaped holes A414 and A424 along the length direction thereof, guide shafts A415 and A425 capable of sliding are arranged in the waist-shaped holes A414 and A424 in a penetrating manner, the guide shafts A415 and A425 are respectively rotatably connected with guide frames A411 and A421 and a connecting rod A413 and A423, one end of each guide frame A411 and A421 is rotatably arranged on the mounting frame 0, the movement tracks of the guide shafts A415 and A425 are defined as circular arcs around the rotating shafts of the guide frames A411 and A421, the connecting rods A413 and A423 are hinged with output swing frames A41 and A42, and the output swing frames A41 and A42 on the common side and the standby side are respectively sleeved on the output shaft A2 on the common side and the output shaft A3 on the standby side to synchronously rotate; a first elastic member a43 is further provided between the output swing frames a41, a42 of the normal side and the standby side so that one side exerts an elastic force to the other side when the other side moves.

The utility model discloses when using, connect the rotatory rotation that carries out input swing span A40 of solenoid valve drive input shaft A1 through input shaft A1, and then carry out the combined floodgate and the separating brake of two tunnel, do and carry out manual switching through connecting the handle. The common side output shaft A2 is connected to a common side moving contact B1, the standby side output shaft A3 is connected to a standby side moving contact B1, and the moving contact B1 is driven to be in contact with a static contact B0 to be switched on or separated from the static contact B0 to be switched off when the output shaft rotates.

In the open state shown in fig. 1, the normal-side and standby-side linkages are in the initial positions, and the elastic member a43 is also in the natural state of not being pushed or pulled. Taking the common side as an example for explanation, the input swing frame a40, the common side transmission rod a412, the common side link a413 and the common side output swing frame a41 form a link structure of a first layer, and in principle, namely, the motion is transmitted to the common side output swing frame a41 through the swing of the input swing frame a40, so as to complete the driving of the swing motion of the common side output swing frame a 41; on the basis, a common side guide frame A411 is added, the common side guide frame A411, a common side link A413 and a common side output swing frame A41 form a link structure of a second layer, a waist-shaped hole A414 structure on a common side transmission rod A412 is added, and a common side guide shaft A415 for rotatably connecting the common side guide frame A411 and the common side link A413 is positioned in the waist-shaped hole A414.

As shown in fig. 3, when the input swing frame a40 swings and wants to transmit the motion to the common side output swing frame a41, the common side transmission rod a412 is first moved to the side wall on one side of the waist-shaped hole a414 in the length direction to abut against the common side guide shaft a415, and then the common side guide shaft a415 can be driven by the continuous motion, that is, the motion of the second layer of connecting rods finally completes the swing of the common side output swing frame a41 to drive the common side output shaft A2 to output to the position, and the whole mechanism is limited in the state of closing the common side, and at this time, the common side moving contact B1 rotates and the stationary contact B0 completes closing the switch; in the process of closing the common side, the standby side transmission rod A422 on the standby side structure and the waist-shaped hole A424 on the standby side structure do reverse movement without generating collision with the standby side guide shaft A425, so that the standby side is stopped at an initial position; at the same time, the swing of the normal-side output swing frame a41 pulls the first elastic member a43 to store a force which acts on the standby-side output swing frame a42 to keep it at the original position. When the brake needs to be opened, the locking state of the whole mechanism can be released through the tripping mechanism, the common side output swing frame A41 and the connecting rods connected with the common side output swing frame A41 can be driven to reset to the initial position by virtue of the elastic force released by the first elastic piece A43, the common side connecting rod A413 and the waist-shaped hole A414 drive the common side guide shaft A415 to displace in the resetting process, the common side transmission guide rod A412 and the input swing frame A40 can be driven to reset, and at the moment, the common side moving contact B1 and the static contact B0 complete the opening. The standby side is kept in the initial state except that the standby side output swing frame a42 is released from the force limit of the first elastic member a43, and the standby side transmission rod a422 is driven by the input swing frame a40 to perform a certain position change.

If the closing on the standby side is to be performed, the closing process on the normal side can be referred to above, and the final mechanism state is the state shown in fig. 2. The selection of the up-and-down arrangement positions of the common side and the standby side of the dual power supply change-over switch in the mounting rack can be defined or exchanged according to habits during manufacturing or using.

The utility model discloses a structural design can make input swing span A40 drive side commonly used and reserve side and carry out certain structure linkage, then through the design of waist type hole cooperation guiding axle on the conduction pole, makes side commonly used and reserve side produce differential effect, and one side is combined floodgate and separating brake do not drive the opposite side action, and the mutual restriction of both sides structure when reducing the separating brake guarantees separating brake efficiency, and the combined floodgate process keeps orderly stable. The first elastic piece A43 is connected with the swing frames at two sides, so that when one side rotates to be closed, elastic force can be applied to the other side to keep the other side stable, and when the first elastic piece A43 is opened, the first elastic piece A43 can react on the first elastic piece A43 and the second elastic piece A to promote the opening of the side and the releasing of the limit at the other side to be closed. The setting of leading truck has injectd the activity orbit of guiding axle, has confirmed the motion and the stay state between the connecting rod structure on the one hand, and has improved intensity and stability on the connecting rod structure, makes the activity space between the connecting rod reduce on the one hand, just as the conduction pole has the activity state of swing and relative displacement, can make the shared space of whole activity diminish, optimizes the structural layout.

As an improved specific implementation manner, each group of the moving contacts B1 is multiple and is arranged on an arrangement frame B2, the arrangement frame B2 is provided with a plurality of front and back through installation cavities B21, the moving contacts B1 are accommodated in the installation cavities B21 in a one-to-one correspondence manner, the front parts of the moving contacts B1 extend out of the installation cavities B21, the rear parts of the moving contacts B1 are limited in the arrangement frame B2 through an installation shaft B22, a second elastic element B5 is arranged in the installation cavity B21 to abut against the moving contacts B1, and the moving contacts B1 can float around the installation shaft B22 and exert restoring force through the second elastic element B5.

As shown in fig. 5, 6, and 7, in the heavy-current dual-power transfer switch, each group of switches can be provided with a plurality of moving contacts B1 to cooperate with a fixed contact B0 for switching on and off, so that the switches can be switched off by virtue of the moving contacts B1, and the difficulty in designing and installing the overall structure is increased by the moving contacts B1. In the embodiment, a plurality of movable contacts B1 are correspondingly arranged from the front end opening of the installation cavity B21 one by one, the rear through holes of the movable contacts B1 correspond to the through holes on the arrangement frame B2, then the installation shaft B22 penetrates through the through holes, then the second elastic element B5 is arranged from the front end of the installation cavity B21, and the movable contacts B1 are collided downwards, so that the assembly of the movable contacts B1 and the arrangement frame B2 is completed, the assembly mode has a simple structure, the structural complexity can be effectively reduced, and the assembly and maintenance difficulty of workers is reduced; install that installation axle B22 both ends are rotatable and install on dual supply change over switch's casing, use installation axle B22 to be rotatory for the axle, can drive arrangement frame B2 and moving contact B1 and carry out circular motion, realize moving contact B1's rotatory divide-shut brake, when moving contact B1 closes a floodgate with the contact of static contact B0, the rotation angle that arranges frame B2 and provide can make moving contact B1 more abundant press to static contact B0, the compression through second elastic component B5 holds power, provide the bigger conflict pressure of moving contact B1, and then guarantee to close a floodgate more stably.

As a modified embodiment, the upper part of the arrangement frame B2 is hinged with a connecting frame B3, the other end of the connecting frame B3 is hinged with a swinging frame B4, and the swinging frame B4 is connected to the common side output shaft A2 or the standby side output shaft A3.

As shown in fig. 5, 6 and 7, the connecting frame B3 and the swing frame B4 form a continuous link structure, and after the common-side output shaft A2 or the standby-side output shaft A3 is externally connected, the opening and closing operation can be transmitted to the arrangement frame B2, so as to drive the arrangement frame B2 and the moving contact B1 to complete the opening and closing operation. A connecting rod formed by the connecting frame B3 and the swinging frame B4 extends towards the rear of the arrangement frame B2, so that the internal space of the cavity of the dual-power transfer switch can be well distributed, the reasonable distribution among structures is completed, and the good movable space of the arrangement frame B2 is ensured; the connecting frame B3 is hinged to the upper portion of the arranging frame B2, good structural restriction can be provided for the upper portion during switching-on, the position of the arranging frame B2 is stable after the moving contact B1 is switched on, and the arranging frame B2 is not prone to structural movement under the condition that the integral connecting rod does not act.

As an improved specific implementation manner, the connecting frame B3 includes two vertical frames B31, two horizontal frames B32, a first rotating shaft B33 and a second rotating shaft B34, the vertical frames B31 are left and right two sets, the two sets of vertical frames B31 are connected through the two sets of horizontal frames B32, the first rotating shaft B33 penetrates through the front end of the vertical frame B31 and simultaneously penetrates through the upper portion of the arrangement frame B2, and the second rotating shaft B34 penetrates through the rear end of the vertical frame B31 and simultaneously penetrates through the swinging frame B4.

As shown in fig. 6 and 7, the vertical frames B31 on both sides are well arranged at both ends of the front and rear first rotating shaft B33 and the second rotating shaft B34, and are respectively connected with the arrangement frame B2 and the swing frame B4 in a penetrating manner; two sets of crossbearers B32 erect frame B31 to both sides and connect, guarantee structural strength to form the fretwork on the whole and subtract the material, be convenient for assemble with arrangement frame B2 and swing span B4 around, and effectively reduce part cost.

As a modified specific embodiment, the mounting cavities B21 and the movable contacts B1 are arranged in three groups in parallel.

As shown in fig. 5 and 6, the three groups of moving contacts B1 commonly used in the high-current dual-power transfer switch can meet the switching-on and switching-off requirements, and the three groups of mounting cavities B21 are equidistantly arranged on the arrangement frame B2 to well arrange the moving contacts B1.

As an improved specific embodiment, the second elastic element B5 is a spring, a convex column B51 for limiting one end of the spring is arranged on the inner wall of the mounting cavity B21, and a limiting groove B52 for limiting the other end of the spring is arranged on the moving contact B1.

As shown in fig. 7, during assembly, a worker can clamp the upper end of the spring to the convex column B51 in advance, then compress the spring to enable the lower end to enter the limiting groove B52, and reset after the lower end of the spring completely enters the limiting groove B52, so that the spring is well limited at the position limited by the convex column B51 and the limiting groove B52, and cannot be disengaged, and the moving contact B1 is well limited.

As an improved specific implementation manner, an arc convex wall B23 is arranged below one surface of the arrangement frame B2 facing the front portion of the moving contact B1, an arc concave wall 02 is arranged behind the fixed contact B0 of the installation frame 0, and when the arrangement frame B2 and the moving contact B1 move until the moving contact B1 contacts the fixed contact B0, the arc convex wall B23 and the arc concave wall 02 overlap to block a space behind the moving contact B1 and the fixed contact B0.

As shown in fig. 5, 6, and 7, an arc-shaped concave wall 02 is disposed on the mounting bracket 0 behind the static contact B0, and when the moving contact B1 is switched on, the arc-shaped convex wall B23 moves to the arc-shaped concave wall 02 to close a space between the arc-shaped convex wall B23 and the arc-shaped concave wall 02; when the switch is switched off, the air flow formed at the moving contact B1 and the static contact B0 is blocked by the arc convex wall B23 and cannot flow backwards, so that the air flow can flow forwards to the arc extinguish chamber 03, the better guiding electric arc enters the arc extinguish chamber 03 to complete arc extinction, and the safety of the switch switching off of the dual-power transfer switch is improved. Specifically, the arc convex wall B23 forms an arc with the mounting shaft B22 as an axis, the movement in the cavity space is a regular circumferential movement, and the arc concave wall 02 also forms a corresponding radian, so that the arc convex wall B23 and the arc concave wall 02 can well close the space when being overlapped, block air flow, and cannot generate an interference problem structurally.

As an improved specific embodiment, an arc-shaped hole a44 is provided on the output swing frames a41 and a42, a limit post 01 is provided on the mounting frame 0 corresponding to the arc-shaped hole a44, the swing of the output swing frames a41 and a42 makes the arc-shaped hole a44 displace relative to the limit post 01, and the swing limit position of the output swing frames a41 and a42 is limited by the two ends of the arc-shaped hole a44 abutting against the limit post 01.

As shown in fig. 1, 2, 3, and 4, the limiting column 01 is inserted into the arc-shaped hole a44, so that the swing limit positions of the common side output swing frame a41 and the common side output swing frame a42 are limited, the stop of the common side output swing frame a41 and the common side output swing frame a42 at the initial positions can be well limited, and the first elastic element a43 can be matched to well limit the stop of the common side output swing frame a41 and the common side output swing frame a42, and prevent the common side output swing frame a41 and the common side output swing frame a42 from rotating arbitrarily when not being driven by external force and mechanism; the arrangement of the arc-shaped holes A44 also achieves the effect of material stealing on the common side output swing frame A41 and the common side output swing frame A42, saves the raw material cost, and realizes the better corresponding mounting and positioning effects on the common side output swing frame A41 and the common side output swing frame A42 by means of the limiting columns 01.

As a modified embodiment, the output swing frames a41 and a42 respectively form outer arms a416 and a426 and inner arms a417 and a427, the inner arms a417 and a427 are hinged with connecting rods a413 and a423, the outer arms a416 and a426 are connected with a first elastic element a43; the first elastic member a43 is a tension spring, the end of which is hooked on the transverse axis of the outer arms a416, a 426.

As shown in fig. 1, 2, 3 and 4, the outer arms a416 and a426 are connected with the first elastic member a43 at opposite outer sides, so that on one hand, the possibility of interference between structures is effectively avoided, and workers can conveniently install the link structure at the inner side and install the first elastic member a43 at the outer side; on the other hand, the outer arm and the inner arm are respectively arranged on two sides of the output swing frame opposite to the output shaft to form a lever structure, so that the structural stress stability of the output swing frame is facilitated, and the stress limit of the common side output swing frame A41 and the common side output swing frame A42 in a closing state is improved. In specific implementation, the outer arm and the inner arm with equal proportional length can be arranged as shown in the figure, so that the structure weight and the force arm are uniform, and the corresponding arc-shaped hole A44 is arranged in the middle position to further enable the center of gravity of the structure to be in a central state. The tension springs are used as mature parts for providing elastic force, workers can select and use the tension specifications as required, the outer arms are provided with the transverse shafts, then the tension springs are hooked, the output swing frames on the two sides are relatively compact in structure, the swing displacement is not large, and the situation that the tension springs are loosened cannot occur; the tension spring directly hooked is simple and convenient to mount and dismount, other more complex mounting structures are not needed to limit the tension spring, and cost can be effectively reduced.

As a modified embodiment, the input swing frame a40, the output swing frames a41 and a42, the guide frames a411 and a421, the conduction rods a412 and a422 and the connecting rods a413 and a423 are respectively provided with a front sheet body A5 and a rear sheet body A5, and the front sheet body A5 and the rear sheet body A5 are connected into a whole through a transverse connecting sheet a 51.

As shown in fig. 1, 2, 3 and 4, and with particular reference to fig. 4, each rod is specifically provided as a front sheet body A5 and a rear sheet body A5, which provide good penetrating arrangement strength for the shaft at the hinge and matching position; after the two sheet bodies A5 are connected through the connecting sheet A51, the two sheet bodies A5 are firmly integrated, the structural thickness and the structural strength are ensured, and the two sheet bodies A5 and the connecting sheet A51 are preferably integrally formed through a bending process, so that the consistency of the integral structural strength is better; on the other hand makes the middle part space form the fretwork when guaranteeing structure thickness, and the different connecting rods of being convenient for set up to different thickness and accomplish the dislocation of articulated shaft department and wear to establish the connection to greatly reduced the cost of material, reduced the weight of part.

As a modified embodiment, the input swing frame a40 is provided with a blocking arm a401 at a side far from the common side output shaft A2 and the standby side output shaft A3, and both sides of the blocking arm a401 are provided with grooves a402 for the external mechanism to be clamped and limited.

As shown in fig. 1, 2, and 3, a trip mechanism is provided on a side of the input swing frame a40 remote from the normal-side output shaft A2 and the standby-side output shaft A3. As in the state of fig. 1, the card media is stopped by means of the stopper arm a 401; as shown in fig. 2, when the standby side is switched on, the blocking arm a401 rotates downwards to enable the clamping piece to be horizontally moved leftwards and clamped to the upper groove a402, so that the reverse reset rotation of the input swing frame a40 is limited, and the switching-on state of the standby side is locked; as shown in fig. 3, when the service side is closed, the blocking arm a401 rotates upward to allow the card member to horizontally move leftward and be clamped to the lower groove a402, so as to limit the reverse reset rotation of the input swing frame a40, thereby locking the closing state of the service side. The clamping piece at the position can form a leftward moving trend through the specific elastic piece, the clamping piece is enabled to form a locking state after being translated leftward, when the tripping mechanism works to drive the clamping piece to move rightward to move away from the groove A402, the locking of the structure can be released, and the opening and closing mechanism can perform opening and closing actions.

Above only the utility model discloses a preferred embodiment, the utility model discloses a scope not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims

1. The utility model provides a change over switch electrical apparatus, includes mounting bracket (0) and sets up operating device (A) and contact subassembly (B) on mounting bracket (0), operating device (A) includes input shaft (A1), common side output shaft (A2), reserve side output shaft (A3) and divide-shut brake subassembly (A4), rotatable setting input shaft (A1), common side output shaft (A2) and reserve side output shaft (A3) on mounting bracket (0), be connected respectively through divide-shut brake subassembly (A4) between input shaft (A1) and common side output shaft (A2), reserve side output shaft (A3), contact subassembly (B) includes multiunit moving contact (B1) and static contact (B0) that common side and reserve side set up respectively, the moving contact (B1) of common side is connected to common side output shaft (A2) carries out the divide-shut brake operation with common side static contact (B0), the moving contact (B1) of reserve side output shaft (A3) connection reserve side carries out the divide-shut brake operation with reserve side static contact (B0), its characterized in that: the switching-on and switching-off assembly (A4) comprises a group of input swing frames (A40), output swing frames (A41 and A42) arranged on a common side and a standby side, guide frames (A411 and A421), conducting rods (A412 and A422) and connecting rods (A413 and A423), wherein the input swing frames (A40) are sleeved on an input shaft (A1) to rotate synchronously, and the two sides of the input swing frames (A40) are respectively hinged with the conducting rods (A412 and A422) arranged on the common side and the standby side;

the transmission rod (A412, A422) is provided with a kidney-shaped hole (A414, A424) along the length direction thereof, a guide shaft (A415, A425) capable of sliding penetrates through the kidney-shaped hole (A414, A424), the guide shaft (A415, A425) is respectively and rotatably connected with a guide frame (A411, A421) and a connecting rod (A413, A423), one end of the guide frame (A411, A421) is rotatably arranged on the mounting frame (0), the motion track of the guide shaft (A415, A425) is defined as an arc around the rotating shaft of the guide frame (A411, A421), the connecting rod (A413, A423) is hinged with an output swing frame (A41, A42), and the output swing frames (A41, A42) on the common side and the standby side are respectively sleeved on the output shaft (A2) on the common side and the output shaft (A3) on the standby side to synchronously rotate; a first elastic member (A43) is provided between the output swing frames (A41, A42) on the normal side and the standby side, and applies elastic force to one side when the other side moves.

2. A transfer switch appliance according to claim 1 wherein: every group moving contact (B1) be a plurality of and set up on an arrangement frame (B2), a plurality of front and back through-going installation cavity (B21) is seted up in arrangement frame (B2), and a plurality of moving contact (B1) one-to-one holds in installation cavity (B21), and installation cavity (B21) is stretched out to a plurality of moving contact (B1) front portion, and the rear portion is spacing in arrangement frame (B2) through an installation axle (B22), set up a second elastic component (B5) in installation cavity (B21) and contradict moving contact (B1), make moving contact (B1) can float and exert the restoring force by second elastic component (B5) around installation axle (B22).

3. A transfer switch apparatus according to claim 2, wherein: the upper portion of the arrangement frame (B2) is hinged to a connection frame (B3), the other end of the connection frame (B3) is hinged to a swing frame (B4), and the swing frame (B4) is connected to a common side output shaft (A2) or a standby side output shaft (A3).

4. A transfer switch appliance according to claim 3, wherein: link (B3) are including erecting frame (B31), crossbearer (B32), first pivot (B33) and second pivot (B34), erect frame (B31) and for controlling two sets ofly, two sets of perpendicular frame (B31) are connected through two sets of crossbearers (B32), the upper portion of setting up frame (B2) is worn to locate in the front end of erecting frame (B31) and wearing to locate simultaneously in first pivot (B33), the rear end of erecting frame (B31) is worn to locate in second pivot (B34) and is worn to locate on swing span (B4) simultaneously.

5. A transfer switch appliance according to claim 2, 3 or 4 wherein: the second elastic element (B5) is a spring, a convex column (B51) used for limiting one end of the spring is arranged on the inner wall of the mounting cavity (B21), and a limiting groove (B52) used for limiting the other end of the spring is arranged on the moving contact (B1).

6. A transfer switch apparatus according to claim 2, 3 or 4 wherein: an arc convex wall (B23) is arranged below one surface of the arrangement frame (B2) facing the front portion of the moving contact (B1), an arc concave wall (02) is arranged behind the fixed contact (B0) of the installation frame (0), and when the arrangement frame (B2) and the moving contact (B1) move to the position where the moving contact (B1) contacts the fixed contact (B0), the arc convex wall (B23) and the arc concave wall (02) are overlapped to block the space behind the moving contact (B1) and the fixed contact (B0).

7. A diverter switch according to any one of claims 1-4, characterized in that: be provided with an arc hole (A44) on output swing span (A41, A42), it is provided with spacing post (01) to correspond arc hole (A44) on mounting bracket (0), the swing of output swing span (A41, A42) makes arc hole (A44) spacing post (01) relatively carry out the displacement, and the back and forth swing extreme position of output swing span (A41, A42) is restricted by spacing post (01) of arc hole (A44) both ends conflict.

8. A diverter switch according to any one of claims 1-4, characterized in that: the output swing frames (A41 and A42) are respectively provided with an outer arm (A416 and A426) and an inner arm (A417 and A427) at the inner side and the outer side, the inner arms (A417 and A427) are hinged with connecting rods (A413 and A423), and the outer arms (A416 and A426) are connected with a first elastic piece (A43); the first elastic member (A43) is a tension spring, and the end part thereof is hooked on the transverse shaft of the outer arm (A416, A426).

9. A diverter switch according to any one of claims 1-4, characterized in that: the input swing frame (A40), the output swing frames (A41, A42), the guide frames (A411, A421), the conduction rods (A412, A422) and the connecting rods (A413, A423) are respectively provided with a front sheet body and a rear sheet body (A5), and the front sheet body and the rear sheet body (A5) are connected into a whole through a transverse connecting sheet (A51).

10. A transfer switch appliance according to any one of claims 1-4, characterized in that: the input swing frame (A40) is provided with a blocking arm (A401) on one side far away from the output shaft (A2) on the common side and the output shaft (A3) on the standby side, and grooves (A402) for clamping and limiting external mechanisms are formed in two sides of the blocking arm (A401).