CN222619630U

CN222619630U - A double-operating-hole three-position isolating switch mechanism

Info

Publication number: CN222619630U
Application number: CN202420154847.4U
Authority: CN
Inventors: 杨浩然; 周回春
Original assignee: Shanghai Wanda Intelligent Electrical Co ltd
Current assignee: Shanghai Wanda Intelligent Electrical Co ltd
Priority date: 2024-01-23
Filing date: 2024-01-23
Publication date: 2025-03-14
Anticipated expiration: 2034-01-23

Abstract

The utility model belongs to the technical field of isolating switches, and particularly discloses a double-operation-hole three-station isolating switch mechanism which comprises a switching-on operation shaft sleeve, a grounding operation shaft sleeve, a front mounting plate, a rear mounting plate and a mounting clamping plate, wherein the mounting clamping plate is positioned between the front mounting plate and the rear mounting plate, the mounting clamping plate comprises a left mounting clamping plate and a right mounting clamping plate, a switching-on micro switch group, a grounding micro switch group and a switching-off micro switch group are arranged above the mounting clamping plate, the switching-on operation shaft sleeve and the grounding operation shaft sleeve are both rotationally connected to the front mounting plate, a first straight gear is arranged on the switching-on operation shaft sleeve and the grounding operation shaft sleeve, a second straight gear is arranged between the switching-on operation shaft sleeve and the grounding operation shaft sleeve, the first straight gear and the second straight gear are mutually meshed, an output shaft is fixed on the second straight gear, and a handle is inserted or operated Kong Gezha according to operation needs, the switching-on the second straight gear rotates clockwise or anticlockwise and is transmitted to the output shaft.

Description

Dual-operation-hole three-station isolating switch mechanism

Technical Field

The utility model relates to the technical field of isolating switches, in particular to a double-operation-hole three-station isolating switch mechanism.

Background

The existing isolating switch is classified into a quick-action isolating switch adopting a spring centering mechanism, and the isolating switch performs instant motion of accelerating closing, opening and grounding by means of energy during spring centering. Such switches have limited life and appearance due to their impact, and are often used in isolation switches rated at 630A and below. The second type is a non-instantaneous isolating switch, and a screw rod is generally adopted to rotate and push a crank arm or a screw rod nut, so that continuous movement of a moving contact on the crank arm or the screw rod nut is realized, and actions of closing, opening and grounding of the isolating switch are completed. The isolation switch above 630A rated current is basically implemented in this way. The invention is directed to a mechanism for a second type of disconnector.

The existing single Kong Caozuo three-station isolating switch mechanism realizes the operation function in the following way:

a. transmission mechanism

Through the operating shaft on the handle insertion mechanism, through the rotatory operating shaft of handle, there is the gear on the operating shaft, through different tooth ratios, transmits for the mechanism on the output shaft, installs the sprocket on the output shaft, through chain drive, transmits for the lead screw that is equipped with the sprocket on the isolating switch, promotes isolating switch back and forth action after the lead screw is rotatory, realizes isolating switch's combined floodgate, separating brake, ground connection.

B. Interlocking with each other

In the operation process of the mechanism, one transmission route enables the isolating switch to continuously act, and the other interlocking route is that the output shaft of the mechanism corresponds the linear travel equal proportion of the isolating switch to the circumference of the interlocking rotary disc on the turbine shaft of the mechanism through the turbine worm structure. When the three-station isolating switch is manually operated to a closing position, a separating position or a grounding position, the interlocking rotary disc can also rotate to a corresponding position, mechanical signals such as pushing and pulling the interlocking rod can be output, the operating handle is finally limited, an operator is told that the operating handle is operated in place, and the operation cannot be continued manually.

C. Electric signal output node

Besides the interlocking turntable, the mechanism turbine shaft is also provided with a micro-switch slice in the axis direction, the slice is synchronous with the turbine shaft, and when the three-station disconnecting switch is switched on, switched off and grounded in place, the slice on the three-station operating mechanism can also rotate to a corresponding position to trigger the micro-switch on the position to control the motor to stop.

However, the disadvantages of the existing solutions are as follows:

1. The mechanism lacks the mechanical limit protection of the isolating switch, and the transmission breakage of the isolating switch is easily caused

When the mechanism is electrically switched on in place or grounded in place, if the triggered micro switch fails, the motor is not stopped, so that the isolating switch continues to move until the top is dead, and the weak point on the motion chain of the isolating switch is damaged by stress due to large torque of the motor, so that serious faults that the isolating switch cannot be operated manually or electrically are caused.

2. Is easy to be operated by mistake, resulting in accidents

On the operating mechanism, as the separation and separation operation and the grounding connection and separation operation are both in one operating hole, the operation position does not need to be changed, the objective operation boundary of the separation and the grounding connection and separation becomes fuzzy, when the manual operating mechanism is operated from the separation and separation position to the separation position, the operating handle cannot continue to rotate when the mechanism is triggered to the position, and as only one operating hole exists, an unlocking device exists, the grounding connection and separation can be continuously operated after the unlocking, namely, the separation and separation or the grounding connection are allowed when the unlocking device is in the separation and separation position, misoperation is easy to occur at the moment, the switching operation is originally isolated, and the misoperation is made into the grounding connection, so that serious accidents are caused.

3. The number of the electric signal position nodes is small

With the increasing level of intellectualization of power equipment, the number of signal nodes required to be given is also increasing, for example, a national network one-key sequential control scheme is required to be close to 10 on/off of 10 at each position point. The micro switch can only be arranged in the radial direction of the rotating shaft by means of slicing triggering on the rotating shaft of the turbine, the adding of the micro switch means that slicing is added, if 10 micro switches are arranged at each position, 30 micro switches are arranged at the three positions, and the mode of slicing triggering the micro switch cannot be installed and debugged. Therefore, the method inevitably has limited quantity of micro-switches, and cannot meet the requirements of the present and future intellectualization on equipment

Disclosure of utility model

The utility model aims to provide a double-operation-hole three-station isolating switch mechanism so as to solve the problems in the background technology.

The utility model provides a double-operation hole three-station isolating switch mechanism, which comprises a switching-on operation shaft sleeve, a grounding operation shaft sleeve, a front mounting plate, a rear mounting plate and a mounting clamping plate, wherein the mounting clamping plate is positioned between the front mounting plate and the rear mounting plate, the mounting clamping plate comprises a left mounting clamping plate and a right mounting clamping plate, a switching-on micro switch group, a grounding micro switch group and a switching-off micro switch group are arranged above the mounting clamping plate, the switching-on operation shaft sleeve and the grounding operation shaft sleeve are both rotationally connected to the front mounting plate, a first straight gear is arranged on the switching-on operation shaft sleeve and the grounding operation shaft sleeve, a second straight gear is arranged between the switching-on operation shaft sleeve and the grounding operation shaft sleeve, the first straight gear is meshed with the second straight gear, an output shaft is fixed on the second straight gear, the end part of the output shaft penetrates through the rear mounting plate and is connected with an output sprocket, a first conical gear is fixed at a position close to the middle of the output shaft, a second conical gear is arranged on the side edge of the left mounting clamping plate, the second conical gear is meshed with the first conical gear, a switching-on operation shaft sleeve or grounding operation shaft sleeve is rotationally connected to the front mounting plate, a second conical gear is rotationally driven by the operation shaft sleeve or the grounding operation shaft sleeve, a second conical gear is rotationally driven by the operation shaft sleeve to rotate, a second conical gear is rotationally arranged close to the second conical gear is rotationally arranged to the second conical gear and the second conical gear is rotationally arranged to the second conical gear is mutually-locking pin, a sliding block is rotationally close to the second sliding block is rotationally arranged to the second sliding block and the second sliding block is rotationally arranged, and the sliding block is rotationally close to the first sliding block is and the sliding block is mutually, and is mutually and the sliding, and is provided with a sliding, and is, the track interlocking plate comprises a ground rotating shaft limiting interlocking device and an on-off rotating shaft limiting interlocking device, wherein the on-off rotating shaft limiting interlocking device and the on-off rotating shaft limiting interlocking device form a limiting track, the second sliding block shifting pin is positioned on the inner side of the limiting track, hexagonal rotating shafts are fixed on the back surfaces of the ground rotating shaft limiting interlocking device and the on-off rotating shaft limiting interlocking device, two ends of the hexagonal rotating shaft are hinged to a left mounting clamping plate and a right mounting clamping plate respectively, a limiting jacking block is arranged at the position, close to the right mounting clamping plate, of the hexagonal rotating shaft, a hanging spring interlocking pin is arranged on the limiting jacking block, a tension spring is fixed on the hanging spring interlocking pin, the screw rod sliding block can drive the second sliding block shifting pin to move in the limiting track in the moving process, the opening and closing track of the ground rotating shaft limiting interlocking device and the on-off rotating shaft limiting interlocking device can be changed, the door interlocking plate is arranged on one side, close to the front mounting plate is hinged to the front mounting plate, the end of the door interlocking plate is hinged to the front mounting plate, the door interlocking plate is provided with an arc-shaped interlocking groove is formed in the sliding plate, and the arc-shaped interlocking track is simultaneously pulled in the arc track.

Preferably, the side of the front mounting plate, which is far away from the mounting clamp plate, is provided with an isolation switching-on and switching-off operation door and a grounding switching-on and switching-off operation door which correspond to the switching-on operation shaft sleeve and the grounding operation shaft sleeve, through grooves are formed in the isolation switching-on and switching-off operation door and the grounding switching-on and switching-off operation door, and the front mounting plate is provided with sliding grooves which correspond to the isolation switching-on and switching-off operation door and the grounding switching-on and switching-off operation door, and the arranged isolation switching-on and switching-off operation door and the grounding switching-on and switching-off operation door are used for protecting the switching-on operation shaft sleeve and the grounding operation shaft sleeve, so that the through grooves can be pulled to be parallel to the switching-on operation shaft sleeve and the grounding operation shaft sleeve, and can be manually operated.

Preferably, the side edges of the closing operation shaft sleeve and the grounding operation shaft sleeve are respectively provided with a separation and separation door interlocking plate and a grounding closing door interlocking plate, the positions of the separation and separation door interlocking plate and the grounding closing door interlocking plate, which are close to the sliding chute, are respectively provided with locknuts, the positions of the separation and separation operation door and the grounding closing door, which are close to the sliding chute, are provided with a pressing screw, the separation and separation operation door and the grounding closing door penetrate through the sliding chute through the pressing Liu Luosi and are connected with the separation and separation door interlocking plate and the locknuts of the grounding closing door interlocking plate, the separation and separation operation door and the grounding separation and separation operation door are respectively fixed with the separation and separation door interlocking plate and the grounding separation and separation door interlocking plate, and through sliding the separation and separation operation door or the grounding separation and separation operation door, the through groove on the separation and separation operation door or the grounding separation and separation operation door is moved to the corresponding closing operation shaft sleeve or the grounding operation shaft sleeve.

Preferably, the first welding piece and the second welding piece are welded on the isolation door-opening interlocking plate and the grounding door-opening interlocking plate respectively, and the first welding piece and the second welding piece are arranged to play a role in positioning.

Preferably, the motor is installed to back mounting panel side, the drive shaft of motor is connected with output sprocket, the back mounting panel below evenly is provided with a plurality of isolator sprockets, isolator sprocket tip rotation is connected with the three station isolator of direct action, the three station isolator inboard of direct action is provided with isolator transmission lead screw, isolator transmission lead screw is connected with isolator sprocket, and be provided with the isolator moving contact of mutual adaptation on the isolator transmission lead screw, isolator moving contact and the three station isolator sliding connection of direct action, output sprocket is connected through the chain with to between the motor sprocket, all between a plurality of isolator sprockets, and be connected through the chain between output sprocket and one of them isolator sprocket, the three station isolator of direct action needs to be fixed during the use.

Preferably, the switch-on micro-gap switch group, the grounding micro-gap switch group and the switch-off micro-gap switch group all comprise a mounting upright post, a micro-gap switch group mounting clamp plate, micro-gap switch main bodies, a rocker, a mounting rotating shaft and a triggering track plate, wherein a plurality of micro-gap switch main bodies are uniformly arranged on the inner side of the micro-gap switch group mounting clamp plate, the mounting upright post is fixed on the side edge of the micro-gap switch group mounting clamp plate, the rocker is positioned below the micro-gap switch group mounting clamp plate, the mounting rotating shaft is fixedly arranged on the left mounting clamp plate and the right mounting clamp plate, the triggering track plate is fixedly arranged below the rocker, the mounting upright posts of the switch-on micro-gap switch group and the grounding micro-gap switch group are fixedly arranged on the rear mounting plate, and the connecting plate is fixedly arranged on the left mounting clamp plate and the right mounting clamp plate.

Preferably, the side edge of the screw rod sliding block is symmetrically provided with a grounding limiting pin and a closing limiting pin.

Preferably, the side of the interlocking screw rod is provided with guide rods which are parallel to each other, the guide rods penetrate through the screw rod sliding block, two ends of each guide rod are respectively fixed on the left installation clamping plate and the right installation clamping plate, and the guide rods are used for guiding.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, through the double-operation-hole three-station isolating switch mechanism, the possibility of misoperation of the single-hole mechanism can be avoided, and the misoperation prevention capability is improved.

The three-station isolating switch can provide various locking functions for engineering application, for example, the grounding switching function of the three-station isolating switch can be independently additionally provided with electric locking or mechanical locking. And if the mechanism is a single-hole operation mechanism, the mechanism cannot be realized.

The rocker device triggered by the micro switch group can provide a large number of micro switch contacts, so that the problem of less pain points of the micro switch contacts in engineering is solved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a schematic view of the mounting plate of the present utility model with the mounting plate removed;

FIG. 4 is a schematic diagram of a connecting direct-acting three-position disconnecting switch structure of the utility model;

FIG. 5 is a schematic view of a micro switch assembly structure according to the present utility model;

FIG. 6 is a schematic view of the inner side structure of the mounting clip of the present utility model;

FIG. 7 is a schematic diagram of a screw slider driving and limiting interlock device according to the present utility model;

FIG. 8 is a second schematic view of a screw slider driving and limiting interlock device according to the present utility model;

FIG. 9 is a schematic view of a grounding position limiting state structure according to the present utility model;

FIG. 10 is a schematic view of a closing position limiting state structure according to the present utility model;

FIG. 11 is a schematic diagram of a dual-aperture interlock arrangement of the present utility model;

FIG. 12 is a schematic diagram of a second embodiment of an interlock device for dual operation hole interlocking according to the present utility model;

FIG. 13 is a third schematic diagram of a dual-aperture interlock arrangement according to the present utility model;

FIG. 14 is a schematic view of a door interlock structure in a closing position according to the present utility model;

FIG. 15 is a schematic view of a ground position door interlock plate structure of the present utility model;

FIG. 16 is a schematic view of a shaft limit interlock according to the present utility model;

FIG. 17 is a schematic diagram of a brake-off limiting module according to the present utility model;

FIG. 18 is a schematic view of a limiting structure from a grounding position to a breaking position according to the present utility model;

FIG. 19 is a schematic view of a limiting structure from a closing position to a opening position;

FIG. 20 is a schematic view of a micro-switch assembly of the present utility model;

FIG. 21 is a schematic view of a micro-switch set triggering rocker device according to the present utility model;

FIG. 22 is a schematic diagram of a trigger structure of a micro switch set according to the present utility model;

fig. 23 is a schematic diagram of a trigger structure of a micro switch set according to the present utility model.

In the figure, 1, a closing operation shaft sleeve; 2, grounding operation shaft sleeve; 3, a second spur gear; 4, a motor, 5, an output shaft, 6, an output sprocket, 7, a driving sprocket, 8, a chain, 9, a disconnecting switch sprocket, 10, a direct-acting three-station disconnecting switch, 11, a disconnecting switch transmission screw rod, 12, a disconnecting switch moving contact, 13, a first conical gear, 14, a second conical gear, 15, an interlocking screw rod, 16, a screw rod sliding block, 17, a grounding limit rotating block, 18, a closing limit rotating block, 19, a grounding limit pin, 20, a closing limit pin, 21, a first sliding block pulling pin, 22, a second sliding block pulling pin, 23, a guide rod, 24, a disconnecting switch operating door, 25, a grounding switch operating door, 26, a disconnecting switch connecting plate, 27, a grounding switch connecting plate, 28, a rivet pressing screw, 29, a locknut, 30, a front mounting plate, 31, a first welding piece, 32, a second welding piece, 33, a door connecting plate, 34, a track connecting plate, 35, a six-angle rotating shaft, 36, a limit spring lifting block, 37, a left connecting plate, 38, a left connecting plate, 39, a connecting clamp plate, 40, a rotating shaft, a rocker switch main body, a rocker switch set, a rocker switch, a main, a rocker switch, a hook, a.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-23, the utility model provides a technical scheme that a dual-operation hole three-station isolating switch mechanism comprises a closing operation shaft sleeve 1, a grounding operation shaft sleeve 2, a front mounting plate 30, a rear mounting plate 54 and a mounting clamp plate, wherein the mounting clamp plate is positioned between the front mounting plate 30 and the rear mounting plate 54, the mounting clamp plate comprises a left mounting clamp plate 38 and a right mounting clamp plate 39, and a closing micro switch group 51 is arranged above the mounting clamp plate, The two-way electric motor comprises a grounding micro switch group 52 and a separating micro switch group 53, wherein the two-way electric motor comprises a switching-on operation shaft sleeve 1 and a grounding operation shaft sleeve 2 which are rotatably connected to a front mounting plate 30, first straight gears are arranged on the switching-on operation shaft sleeve 1 and the grounding operation shaft sleeve 2, a second straight gear 3 is arranged between the switching-on operation shaft sleeve 1 and the grounding operation shaft sleeve 2, the first straight gears and the second straight gears 3 are meshed with each other, an output shaft 5 is fixed on the second straight gears 3, the end part of the output shaft 5 penetrates through a rear mounting plate 54 and is connected with an output chain wheel 6, a first conical gear 13 is fixed at a position of the output shaft 5 close to the middle, a second conical gear 14 is arranged on the side edge of a left mounting clamping plate 38, the second conical gear 14 is meshed with the first conical gear 13, the second conical gear 14 is driven to rotate through the switching-on operation shaft sleeve 1 or the grounding operation shaft sleeve 2, a lead screw 15 and a track linkage plate 34 are arranged between the left mounting clamping plate 38 and the second straight gears 3, a lead screw 15 and a lead screw 16 are arranged at a position of the two ends of the lead screw 15 close to each other, a position of the lead screw 15 close to the lead screw is provided with a limit block 17 and a limit block 18, and a limit block 18 are arranged on the lead screw 16, and a limit block 16 is arranged on the lead screw 16, and a position of the lead screw 16 is arranged close to the limit block 16, and is in a position of the limit block 16, and is fixed on the lead screw and is in a position, and is in the position, and is adjacent to the position to the limit block, the second slide block shifting pin 22 and the micro switch group shifting pin 50, the end part of the second slide block shifting pin 22 is provided with a track shifting pin 43, the output shaft 5 drives the second conical gear 14 to rotate through the first conical gear 13, and the second conical gear 14 is utilized to drive the interlocking screw rod 15 to rotate, so that the practical interlocking screw rod 15 can drive the screw rod slide block 16 to move; the track interlocking plate 34 comprises a ground rotating shaft limiting interlocking device 40 and a closing rotating shaft limiting interlocking device 41, wherein the ground rotating shaft limiting interlocking device and the closing rotating shaft limiting interlocking device 41 form a limiting track, the second sliding block shifting pin 22 is positioned on the inner side of the limiting track, hexagonal rotating shafts 35 are fixed on the back surfaces of the ground rotating shaft limiting interlocking device 40 and the closing rotating shaft limiting interlocking device 41, two ends of the hexagonal rotating shafts 35 are hinged to a left mounting clamping plate 38 and a right mounting clamping plate 39 respectively, a limiting jacking block 36 is arranged at the position, close to the right mounting clamping plate 39, of the hexagonal rotating shafts 35, a hanging spring interlocking pin 37 is arranged on the limiting jacking block 36, a tension spring 42 is fixed on the hanging spring interlocking pin 37, a lead screw sliding block 16 drives a second sliding block shifting pin 22 to move in the limiting track, in the process, a door interlocking plate 33 is arranged on one side, close to the mounting clamping plate, of the front 30 is provided with a door interlocking plate 33, the end of the door interlocking plate 33 is hinged to the front mounting plate 30, a track interlocking groove 43 is arranged in the middle, and the sliding block interlocking pin 43 is arranged in the arc track groove 43 is formed in the arc groove of the sliding block interlocking plate, and the sliding block 16 can change the track, and the sliding block interlocking pin can move in the arc track.

Further, the side of the front mounting plate 30 away from the mounting plate is provided with an isolation switch-on/off operation door 24 and a grounding switch-on/off operation door 25 corresponding to the switch-on operation shaft sleeve 1 and the grounding switch-on/off operation shaft sleeve 2, through grooves are formed in the isolation switch-on/off operation door 24 and the grounding switch-on/off operation door 25, and the front mounting plate 30 is provided with sliding grooves corresponding to the isolation switch-on/off operation door 24 and the grounding switch-on/off operation door 25, and the isolation switch-on/off operation door 24 and the grounding switch-on/off operation door 25 are arranged to protect the switch-on operation shaft sleeve 1 and the grounding switch-on operation shaft sleeve 2, so that the through grooves can be pulled to be parallel to the switch-on operation shaft sleeve 1 and the grounding switch-on operation shaft sleeve 2, and can be manually operated.

Further, the side edges of the closing operation shaft sleeve 1 and the grounding operation shaft sleeve 2 are respectively provided with a separation and separation door locking plate 26 and a grounding and separation door locking plate 27, the positions of the separation and separation door locking plate 26 and the grounding and separation door locking plate 27 close to the sliding chute are respectively provided with a locknut 29, the positions of the separation and separation operation door 24 and the grounding and separation operation door 25 close to the sliding chute are provided with a pressing and saling screw 28, the separation and separation operation door 24 and the grounding and separation operation door 25 pass through the sliding chute through the pressing and saling screw 28 and are connected with the separation and separation door locking plate 26 and the locknut 29 of the grounding and separation door locking plate 27, so that the separation and separation operation door 24 and the grounding and separation operation door 25 are respectively fixed with the separation and separation door locking plate 26 and the grounding and separation door locking plate 27, and the separation and separation operation door 24 or the grounding and separation operation door 25 are moved to the corresponding closing operation shaft sleeve 1 or the grounding and separation operation shaft sleeve 2 through sliding grooves on the separation and separation operation door 24 and the grounding and the separation operation door 25.

Further, the first welding member 31 and the second welding member 32 are welded on the isolation door interlock plate 26 and the grounding door interlock plate 27 respectively, and the first welding member 31 and the second welding member 32 are arranged to play a role in positioning.

Further, the motor 4 is installed on the side of the rear mounting plate 54, the driving shaft of the motor 4 is connected with the driving sprocket 7, a plurality of isolating switch sprockets 9 are uniformly arranged below the rear mounting plate 54, the end parts of the isolating switch sprockets 9 are rotationally connected with the direct-acting three-station isolating switch 10, an isolating switch transmission screw 11 is arranged on the inner side of the direct-acting three-station isolating switch 10 and is connected with the isolating switch sprockets 9, isolating switch moving contacts 12 which are mutually matched are arranged on the isolating switch transmission screw 11, the isolating switch moving contacts 12 are in sliding connection with the direct-acting three-station isolating switch 10, the output sprocket 6 is connected with the driving sprocket 7 through chains 8, the isolating switch sprockets 9 are connected with one another through the chains 8, and the direct-acting three-station isolating switch 10 needs to be fixed when in use.

Further, the switch-on micro-switch group 51, the grounding micro-switch group 52 and the switch-off micro-switch group 53 all comprise a mounting upright post 44, a micro-switch group mounting clamping plate 45, micro-switch main bodies 46, a rocker 47, a mounting rotating shaft 48 and a trigger track plate 49, wherein a plurality of micro-switch main bodies 46 are uniformly arranged on the inner side of the micro-switch group mounting clamping plate 45, the mounting upright post 44 is fixed on the side edge of the micro-switch group mounting clamping plate 45, the rocker 47 is positioned below the micro-switch group mounting clamping plate 45, the mounting rotating shaft 48 is fixed on the inner side of the rocker 47, the mounting rotating shaft 48 is hinged on the left mounting clamping plate 38 and the right mounting clamping plate 39, the trigger track plate 49 is fixed below the rocker 47, the switch-on micro-switch group 51 and the mounting upright post 44 of the grounding micro-switch group 52 are fixed on the rear mounting plate 54, the mounting upright post 44 of the switch-off micro-switch group 53 is fixed with a connecting plate, and the connecting plate is fixed with the left mounting clamping plate 38 and the right mounting clamping plate 39.

Further, the side edge of the screw rod sliding block 16 is symmetrically provided with a grounding limiting pin 19 and a closing limiting pin 20.

Further, the side of the interlocking screw rod 15 is provided with guide rods 23 parallel to each other, the guide rods 23 penetrate through the screw rod sliding block 16, two ends of the guide rods 23 are respectively fixed on the left mounting clamping plate 38 and the right mounting clamping plate 39, and the guide rods 23 are provided for guiding.

According to the working principle, a handle is inserted into or operated Kong Gezha according to the operation requirement to operate the shaft sleeve 1 or the grounding operation shaft sleeve 2, the shaft sleeve rotates clockwise or anticlockwise, the first straight gear on the shaft sleeve is matched with the second straight gear 3 and is transmitted to the output shaft 5, the output chain wheel 6 is arranged on the output shaft 5 and is transmitted to the isolating switch chain wheel 9 through a chain, the isolating switch chain wheel 9 drives the isolating switch screw rod to rotate clockwise or anticlockwise, and the isolating switch moving contact 12 is pushed to move forwards or backwards, so that the switching-on, switching-off and grounding of the three-station isolating switch are realized. When in electric operation, the motor 4 is used for forward and reverse rotation, the output chain wheel 6 is transmitted through the driving chain wheel 7, and the subsequent transmission is consistent with manual operation. The transmission of the interlocking route is that the first bevel gear and the second bevel gear on the output shaft 5 are turned to an interlocking screw rod 15, a screw rod sliding block 16 is arranged on the interlocking screw rod 15, the rotation of the interlocking screw rod 15 is synchronous with the rotation of a disconnecting switch screw rod, the screw rod sliding block 16 translates left and right along with the rotation of the interlocking screw rod 15, and the displacement of the screw rod sliding block is equal to the stroke of the disconnecting switch. When the interlocking screw rod 15 rotates, the screw rod sliding block 16 can only do left and right reciprocating motion under the limit of the guide rod 23, and the grounding limit interlocking rotating block and the closing limit interlocking rotating block are respectively fixed at the left end and the right end of the interlocking screw rod 15. When the screw rod sliding block 16 moves to the corresponding closing position of the isolating switch, the limiting rotating block interferes with the closing limiting pin 20, so that the interlocking screw rod 15 is limited and cannot continue rotating in the direction, meanwhile, the interlocking screw rod 15 feeds back limiting force to the output shaft 5 through the second conical gear 14 and the first conical gear 13, the limited output shaft 5 feeds back the clutch separating operation shaft sleeve and the grounding clutch separating operation shaft sleeve, manual operation in the direction is limited, and the function that manual operation isolating closing is limiting protection is realized. And the grounding switch-on is the same. When the electric operation isolating switch is switched on or the grounding switch is switched on in place, when the micro switch contact fails, the motor 4 continues to rotate, the output shaft 5 and the interlocking screw rod 15 continue to rotate in the direction, the interlocking screw rod 15 stops rotating along with the contact of the limiting rotating block and the limiting pin, the output shaft 5 stops rotating, the motor 4 stops rotating, the current rises, and the idle switch trips. Thereby protecting the disconnector itself from damage.

The interlocking logic is that when the isolating switch is at the isolating position or the intermediate position of the isolating switch, the isolating switch can only be opened, the isolating switch operating door 24 can only be opened, the grounding switch operating door 25 can not be opened, the isolating switch is at the isolating switch position, the isolating switch operating door 24 and the grounding switch operating door 25 can both be opened, and when the grounding switch is at the intermediate position of the grounding switch or the intermediate position of the grounding switch, the grounding switch operating door 25 can only be opened, and the isolating switch operating door 24 can not be opened.

The separation and separation operation door 24 and the grounding separation and separation operation door 25 pass through the chute holes of the front mounting plate 30 through the press riveting screws 28, are respectively connected with the separation and separation door interlocking plate 26 and the grounding separation and separation door interlocking plate 27, and are locked by the locknuts 29. The separation and separation operation door 24 or the grounding joint separation and operation door 25 is poked, the whole set of door plates and the door interlocking plates slide leftwards in the sliding groove of the front mounting plate 30, the separation and separation operation shaft sleeve or the grounding joint separation and operation shaft sleeve is exposed, and then the operation handle is inserted for operation according to the requirement.

The interlocking plate is provided with a track arc groove and a bent end part, and a track poking pin 43 on the screw rod sliding block 16 is inserted into the track arc groove. When the three-position switch is in the clutch separating region, the second sliding block shifting pin 22 on the screw rod sliding block 16 moves in the track arc groove to downwards rotate and shift the door interlocking plate 33, the bent lower end extending part of the end part of the interlocking plate blocks the moving path of the second welding piece 32, and the welding piece is integrally welded with the grounding switch door in an interlocking manner through spot welding, so that the second welding piece 32 is blocked, the movement of the grounding switch door 25 is limited, and the grounding switch door 25 is locked when the three-position mechanism is operated manually in the clutch separating state, so that misoperation is prevented.

When the three-position switch is operated to the opening position, namely the lead screw sliding block 16 is in the middle position, the second sliding block shifting pin 22 on the lead screw sliding block 16 is just in the middle position in the track arc groove, and the door interlocking and locking plate 33 is just in the middle position according to the track arc groove designed in advance, the extending parts of the upper end and the lower end of the bending end of the interlocking plate are positioned in the middle of the upper welding piece and the lower welding piece, and the isolation opening operation door 24 and the grounding opening operation door 25 can be opened

When the three-position switch is in the grounding switching-on and switching-off region, the second sliding block shifting pin 22 on the screw rod sliding block 16 moves in the track arc groove to upwards rotate and shift the door interlocking and locking plate 33, the bent upper end extending part of the end part of the interlocking plate blocks the moving path of the second welding piece 32, so that the movement of the isolation switching-on and switching-off operation door 24 is limited, and when the three-position mechanism is in a manual operation grounding switching-on and switching-off state, the isolation switching-on and switching-off operation door 24 is locked, and misoperation is prevented.

The three-station mechanism operates the brake from the isolation closing position or the grounding closing position, and when the brake reaches the separation position, besides the indication of the indication board, the mechanism needs to have clear mechanical limit, so that an operator cannot operate by mistake. The specific implementation mode is as follows:

The track interlocking plate 34 designed according to the stroke is fixed on the hexagonal rotating shaft 35 through bolts, meanwhile, the limit jacking block 36 is fixed on the hexagonal rotating shaft 35 through an elastic pin, and the hanging spring interlocking pin 37 of the hanging spring 42 is arranged on the limit jacking block 36.

The brake-separating limiting module combines the ground-separating rotating shaft limiting interlocking device 40, the brake-separating rotating shaft limiting interlocking device 41, the screw rod transmission module and the tension spring 42 into a linkage module through the left and right mounting clamping plates 39. When the track shifting pin 43 moves left and right along with the screw rod, the ground separating and combining rotating shaft limiting interlocking device 41 can be lifted or folded along with the height of the track line, so that the limiting top block 36 can swing in angle within a specified stroke range.

The disconnecting switch is operated from the grounding position to the opening position, the screw rod on the mechanism rotates clockwise, the grounding limiting rotating block 17 also rotates clockwise, when the track poking pin 43 moves through the middle, the grounding rotating shaft limiting interlocking device 40 is folded along with the lower track line, and the limiting jacking block 36 also swings inwards along with the interlocking device. The grounding limiting rotating block 17 can be limited by the furled top block, so that the mechanical limit from the three-station grounding position to the opening position is realized.

Similarly, when the disconnecting switch is operated from the closing position to the opening position, the screw rod on the mechanism rotates anticlockwise, the grounding limit rotating block 17 also rotates anticlockwise, after the track poking pin 43 moves, the closing and opening rotating shaft limit interlocking device 41 is folded along with the lower track line, and the limit jacking block 36 also swings inwards along with the interlocking device. The grounding limiting rotating block 17 is limited by the folded limiting top block 36, so that mechanical limiting from the three-station closing position to the opening position is realized.

When the micro-switch group poking pin 50 on the screw rod sliding block 16 moves along with the screw rod sliding block 16, the micro-switch group poking pin 50 contacts with the trigger track mounting plate on a movement path, so that the rocker rotates around the shaft, and the lifted rocker 47 triggers all micro-switches on the micro-switch group, and the electric signal output is completed.

On the moving path of the micro-switch group poking pin 50, a closing micro-switch group, a grounding micro-switch group and a separating micro-switch hanging group are respectively arranged, and according to the same triggering mode, the micro-switch group at the corresponding position can be triggered by the mechanism at three positions of closing, separating and grounding, so that the output of the whole set of electric signals is realized.

It is noted that the whole device is controlled by the total control button, and because the equipment matched with the control button is common equipment, the device belongs to the prior art, and the electrical connection relation and the specific circuit structure are not repeated here.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A double-operating hole three-position isolating switch mechanism, characterized in that it comprises a closing operation sleeve (1), a grounding operation sleeve (2), a front mounting plate (30), a rear mounting plate (54) and a mounting clamping plate, wherein the mounting clamping plate is located between the front mounting plate (30) and the rear mounting plate (54), the mounting clamping plate comprises a left mounting clamping plate (38) and a right mounting clamping plate (39), and a closing micro switch group (51), a grounding micro switch group (52) and an opening micro switch group (53) are arranged above the mounting clamping plate; the closing operation sleeve (1) and the grounding operation sleeve (2) are both rotatably connected to the front mounting plate (30), and the closing operation sleeve (1) and the grounding operation sleeve (2) are rotatably connected to the front mounting plate (30). A first spur gear is provided on both the operating sleeve (1) and the grounding operating sleeve (2); a second spur gear (3) is provided between the closing operating sleeve (1) and the grounding operating sleeve (2); the first spur gear and the second spur gear (3) are meshed with each other; an output shaft (5) is fixed on the second spur gear (3); the end of the output shaft (5) passes through the rear mounting plate (54) and is connected to the output sprocket (6); a first bevel gear (13) is fixed near the middle of the output shaft (5); a second bevel gear (14) is provided on the side of the left mounting clamping plate (38); the second bevel gear (14) and the first bevel gear (13) are meshed with each other;

An interlocking screw (15) and a track interlocking plate (34) are arranged between the left mounting clamping plate (38) and the right mounting clamping plate (39); a grounding limit rotating block (17) and a closing limit rotating block (18) are respectively arranged near the two ends of the interlocking screw (15); and one end of the interlocking screw (15) near the closing limit rotating block (18) is fixed to the second bevel gear (14); a screw slider (16) that cooperates with each other is arranged on the interlocking screw (15); a first slider pin (21), a second slider pin (22) and a micro switch group pin (50) are arranged on the screw slider (16); and a track pin (43) is arranged at the end of the second slider pin (22);

The track interlocking plate (34) comprises a ground split shaft limiting interlocking device (40) and a closing split shaft limiting interlocking device (41), the split shaft limiting interlocking device and the closing split shaft limiting interlocking device (41) form a limiting track, the second slider pin (22) is located inside the limiting track, the ground split shaft limiting interlocking device (40) and the closing split shaft limiting interlocking device (41) are both fixed with a hexagonal shaft (35) on their backs, the two ends of the hexagonal shaft (35) are respectively hinged on the left mounting clamping plate (38) and the right mounting clamping plate (39), and a limiting top block (36) is provided at a position of the hexagonal shaft (35) close to the right mounting clamping plate (39), a hanging spring interlocking pin (37) is provided on the limiting top block (36), and a tension spring (42) is fixed on the hanging spring interlocking pin (37);

A door interlocking plate (33) is provided on one side of the front mounting plate (30) close to the mounting clamping plate. The end of the door interlocking plate (33) is hinged on the front mounting plate (30). A track arc groove is provided in the middle of the door interlocking plate (33). A track pin (43) is inserted in the track arc groove.

2. A double-operating-hole three-position isolating switch mechanism according to claim 1, characterized in that: an isolating closing/opening operating door (24) and a grounding closing/opening operating door (25) corresponding to the closing operating sleeve (1) and the grounding operating sleeve (2) are provided on the side of the front mounting plate (30) away from the mounting clamping plate, and a through groove is provided on the isolating closing/opening operating door (24) and the grounding closing/opening operating door (25), and a sliding groove corresponding to the isolating closing/opening operating door (24) and the grounding closing/opening operating door (25) is provided on the front mounting plate (30).

3. A double-operating-hole three-position isolating switch mechanism according to claim 1, characterized in that: the closing operation sleeve (1) and the grounding operation sleeve (2) are respectively provided with an isolating door interlock plate (26) and a grounding door interlock plate (27) on their sides, and the isolating door interlock plate (26) and the grounding door interlock plate (27) are provided with anti-loosening nuts (29) near the slide slot, and the isolating door (24) and the grounding door (25) are provided with pressure screws (28) near the slide slot, and the isolating door (24) and the grounding door (25) pass through the slide slot and are connected to the anti-loosening nuts (29) of the isolating door interlock plate (26) and the grounding door interlock plate (27) through the pressure screws (28).

4. A double-operating-hole three-position isolating switch mechanism according to claim 3, characterized in that a first welding part (31) and a second welding part (32) are respectively welded on the isolating door interlock plate (26) and the grounding door interlock plate (27).

5. A double-operating-hole three-position isolating switch mechanism according to claim 1, characterized in that: a motor (4) is installed on the side of the rear mounting plate (54), the driving shaft of the motor (4) is connected to a driving sprocket (7), a plurality of isolating switch sprockets (9) are evenly arranged below the rear mounting plate (54), the end of the isolating switch sprocket (9) is rotatably connected to a direct-acting three-position isolating switch (10), an isolating switch transmission screw (11) is arranged inside the direct-acting three-position isolating switch (10), and the isolating switch is connected to the rear mounting plate (54). The switch transmission screw (11) is connected to the isolating switch sprocket (9), and the isolating switch transmission screw (11) is provided with isolating switch moving contacts (12) adapted to each other, the isolating switch moving contacts (12) are slidably connected to the direct-acting three-position isolating switch (10), the output sprocket (6) is connected to the driving sprocket (7), and the plurality of isolating switch sprockets (9) are connected via chains (8), and the output sprocket (6) is connected to one of the isolating switch sprockets (9) via a chain (8).

6. A double-operating-hole three-station isolating switch mechanism according to claim 1, characterized in that: the closing microswitch group (51), the grounding microswitch group (52) and the opening microswitch group (53) all include a mounting column (44), a microswitch group mounting clamp (45), a microswitch body (46), a rocker (47), a mounting shaft (48) and a trigger track plate (49), a plurality of microswitch bodies (46) are evenly arranged on the inner side of the microswitch group mounting clamp (45), a mounting column (44) is fixed to the side of the microswitch group mounting clamp (45), and a rocker (47) is mounted on the inner side of the microswitch group mounting clamp (45). The plate (47) is located below the micro switch group mounting clamp (45), a mounting shaft (48) is fixed inside the seesaw (47), the mounting shaft (48) is hinged on the left mounting clamp (38) and the right mounting clamp (39), a trigger track plate (49) is fixed below the seesaw (47), wherein the mounting columns (44) of the closing micro switch group (51) and the grounding micro switch group (52) are fixed on the rear mounting plate (54), and the mounting columns (44) of the opening micro switch group (53) are fixed with a connecting plate, and the connecting plate is fixed to the left mounting clamp (38) and the right mounting clamp (39).

7. A double-operating-hole three-position isolating switch mechanism according to claim 1, characterized in that: a grounding limit pin (19) and a closing limit pin (20) are symmetrically arranged on the side of the screw slider (16).

8. A double-operating-hole three-position isolating switch mechanism according to claim 1, characterized in that: the side of the interlocking screw (15) is provided with mutually parallel guide rods (23), the guide rod (23) passes through the screw slider (16), and the two ends of the guide rod (23) are respectively fixed on the left mounting plate (38) and the right mounting plate (39).