CN206312778U - The operating mechanism of automatic change-over - Google Patents

Abstract

A kind of operating mechanism of automatic change-over, including：Switching mechanism, switching mechanism includes framework, the first transition components and the second transition components being arranged in framework, and the first transition components are used to drive the divide-shut brake of the first contact system, and the second transition components are used to drive the divide-shut brake of the second contact system；Feature：Also include a locking device, locking device includes knob assembly and limit assembly, knob assembly has operating position and latched position, and when switching mechanism is located at the first closing position, the first transition components act on limit assembly so that limit assembly backstop knob assembly is rotated to latched position；When switching mechanism is located at the second closing position, the second transition components act on limit assembly so that limit assembly backstop knob assembly is rotated to latched position；When switching mechanism is located at double points of positions, limit assembly releases the backstop to knob assembly.Can guarantee that just allows padlock only when change-over switch is off, so as to be prevented effectively from the generation of maloperation.

Description

The operating mechanism of automatic change-over

Technical field

The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of operating mechanism of automatic change-over.

Background technology

Motor-operating mechanism is used to make switchgear carry out on/off switch or complete other in automatic change-over switch equipment Action.Motor-operating mechanism typically realizes automatic operation mode by controller, but often while can also provide a hand Dynamic operator scheme, so as to be automatically brought into operation failure or need it is manually-operated in the case of can go to operate the operation machine by manpower Structure.Therefore, operating mechanism can typically set one and can be automatically brought into operation in the first position as manual operation mode and conduct The toggle changed between the second place of pattern.

Toggle in prior art also has additional " locking " position as locking, and open position is located in change-over switch （Such as automatic change-over is in the first contact system separating brake and double points of positions of the second contact system separating brake）When to operating mechanism Implementing locking, being turned with to facilitate overhaul its load end and be prevented other staff from passing through the operation of operating mechanism automatic or manual Change switch to drive execution switch to close a floodgate or separating brake, reach safing purpose.Beyond above-mentioned situation, then padlock is not allowed.

Existing motor-operating mechanism is typically provided anti-misoperation apparatus, and the device causes motor-operating mechanism only in hand Could be operated manually with handle during dynamic operator scheme, although it passes through a baffle plate " will allow manually operated " and " not allow It is manually operated " both of these case distinguishes, but this kind of structure is the drawbacks of have certain, it is allowed to and toggle is under any circumstance Being allocated to " locking " position carries out padlock.However, padlock functions only as preventing the effect to the operation of operating mechanism automatic or manual, Operated simply against the on/off switch to performing switch, thus user cannot be avoided because of reasons such as carelessness or maloperations, not yet Inspection just is implemented to load end before change-over switch is turned off into position, as a result will certainly be led to a disaster.

Therefore, the applicant has made beneficial design, technical scheme described below is to produce under this background Raw.

The content of the invention

The purpose of this utility model is to provide a kind of operating mechanism of automatic change-over, and it can guarantee that only in conversion Switch just allows padlock when being off, so as to be prevented effectively from the generation of maloperation.

The purpose of this utility model is such to what is reached, a kind of operating mechanism of automatic change-over, including：One conversion Mechanism, described switching mechanism is with the first contact system combined floodgate and the second contact system separating brake for corresponding to automatic change-over Double points of positions of the first closing position, the first contact system separating brake of correspondence automatic change-over and the second contact system separating brake, The second closing position that the first contact system separating brake and the second contact system of correspondence automatic change-over close a floodgate, described conversion Mechanism includes framework, the first transition components and the second transition components that are arranged in framework, and the first transition components are used to driving the The divide-shut brake of one contact system, the second transition components are used to drive the divide-shut brake of the second contact system；Also include a locking device, Described locking device includes knob assembly and limit assembly, and described knob assembly has operating position and latched position, when When switching mechanism is located at the first closing position, the first transition components act on limit assembly so that limit assembly backstop knob assembly Rotated to latched position；When switching mechanism is located at the second closing position, the second transition components act on limit assembly and cause limit Hyte part backstop knob assembly is rotated to latched position；When switching mechanism is located at double points of positions, limit assembly is released to knob The backstop of component.

In a specific embodiment of the present utility model, described limit assembly includes that first connecting rod component, second connect Bar assembly and the elastic component that first connecting rod component and second connecting rod component reset, first connecting rod component is set to include being hubbed on framework The first drive rod that is upper and being rotated by the promotion of the first transition components and the first drive rod are hinged and follow what the first drive rod was acted First gear-stopping bar, second connecting rod component include being hubbed on framework and by the second transition components promote the second drive rod for rotating, The second gear-stopping bar for being hinged and following the second drive rod to act with the second drive rod, the first gear-stopping bar mutually cuts with scissors with the second gear-stopping bar Connect, when switching mechanism is located at the first closing position, the first gear-stopping bar backstop knob assembly is rotated to latched position；Work as interpreter When structure is located at the second closing position, the second gear-stopping bar backstop knob assembly is rotated to latched position；When switching mechanism is located at double points During position, the first gear-stopping bar and the second gear-stopping bar release the backstop to knob assembly.

In another specific embodiment of the present utility model, described limit assembly also includes pivot, described pivot It is erected on framework, the first described drive rod has a pair, and surface cover parallel to each other is located on pivot, both connect by first Spindle is connected with the first limit shaft, and one end of the first described gear-stopping bar is hinged by the first connecting shaft with the first drive rod； The second described drive rod has a pair, and surface cover parallel to each other is located on pivot, and both are by the second connecting shaft and the second limit Position axle is connected, and one end of the second gear-stopping bar is hinged by the second connecting shaft with the second drive rod, the other end of the first gear-stopping bar Pass through hinge with the other end of the second gear-stopping bar, described elastic component is torsion spring, and torsion spring is set in the middle part of pivot, one end It is resisted against on the first limit shaft, the other end is resisted against on the second limit shaft.

In another specific embodiment of the present utility model, described knob assembly includes being hubbed on automatic change-over Panel on knob and be connected with knob install stop part, on the first described gear-stopping bar and the second gear-stopping bar towards only The direction of block piece each extends over the first stopper protrusion and the second stopper protrusion for being leant with stop part.

In another specific embodiment of the present utility model, described knob is in the middle position towards stop part side Composition has square shaft, and described stop part includes fixed mount and rotating disk, through hole is offered on described fixed mount, and described rotating disk exists Being constituted towards the center of fixed mount side has axle platform, and rotating disk is hubbed on fixed mount by the cooperation of axle platform and through hole, described Axle platform offers square hole in center, and described square shaft is realized the synchronous axial system of knob and rotating disk with the square hole inserting, turned Disk is equipped with the stop block for the stopper protrusion of backstop first and the second stopper protrusion in the side of dorsad fixed mount.

In an of the present utility model and then specific embodiment, described operating mechanism also include by with switching mechanism It is connected to make automatic change-over carry out the motor operated driving mechanism of electric operation, motor operated driving mechanism includes fixed plate And motor in fixed plate, train of reduction gears and clutch are separately positioned on, described clutch includes clutch gear Group and lever assembly；The first side week profile and the second side week profile are provided with described knob assembly, the first side week profile is in Circular arc, all profiles in the second side are less than the arc radius of the first side week profile, institute apart from the distance of the center of rotation of knob assembly The operating position for stating knob assembly includes manual operating position and electric operation position, when knob assembly is located at manual operating position During with latched position, the first side week profile act on lever assembly, released by the effect of clutch gear group switching mechanism with Drive connection between motor, when knob assembly is located at electric operation position, the second side week profile is released to lever assembly Pushing is acted on, so as to keep the drive connection of switching mechanism and motor.

The structure that the utility model is engaged using switching mechanism with limit assembly, compared with prior art, what is had has Beneficial effect is：Can guarantee that only to be in automatic change-over and disconnect, i.e., automatic change-over is in the first contact system separating brake and the Double points of positions of two contact system separating brakes, padlock is just allowed in the state of also referred to as isolating, to be overhauled to its load end, Padlock is not allowed in the case of remaining then, user can be prevented effectively from because of reasons such as carelessness or maloperations, not yet putting change-over switch Security incident inspection just implemented to load end before open position and is triggered.

Brief description of the drawings

Fig. 1 is the structural representation of operating mechanism described in the utility model.

Fig. 2 is the structural representation of knob described in the utility model.

Fig. 3 a are the structural representation of stop part described in the utility model.

Fig. 3 b are the structural representation of the side of rotating disk described in the utility model.

Fig. 4 is the structural representation of limit assembly described in the utility model.

Fig. 5 a are that knob described in the utility model closes a floodgate in automatic change-over positioned at the first contact system and second touches Instruction figure during the first closing position of head system separating brake.

Fig. 5 b are that knob described in the utility model is touched in automatic change-over with stop part and limit assembly positioned at first Cooperation side view when head system combined floodgate and the first closing position of the second contact system separating brake.

Fig. 5 c are another visual angle schematic diagram of Fig. 5 b.

Fig. 5 d are switching mechanism described in the utility model to be located at the first contact system and closes a floodgate and the in automatic change-over Structural representation during the first closing position of two contact system separating brakes.

Fig. 5 e are that switching mechanism described in the utility model is located at the first contact system with limit assembly in automatic change-over Matching chart during the second closing position that system separating brake and the second contact system close a floodgate.

Fig. 6 a be knob described in the utility model automatic change-over be located at the first contact system separating brake and second touch Instruction figure during the second closing position that head system closes a floodgate.

Fig. 6 b are that knob described in the utility model is touched in automatic change-over with stop part and limit assembly positioned at first Cooperation side view during the second closing position that head system separating brake and the second contact system close a floodgate.

Fig. 6 c are another visual angle schematic diagram of Fig. 6 b.

Fig. 6 d are that switching mechanism described in the utility model is located at the first contact system separating brake and the in automatic change-over Structure chart during the second closing position that two contact systems close a floodgate.

Fig. 7 a knobs described in the utility model are located at the first contact system separating brake and the second contact in automatic change-over Instruction figure during double points of positions of system separating brake.

Fig. 7 b are that knob described in the utility model is located at the first contact with stop part and limit assembly in automatic change-over Cooperation side view during double points of positions of system separating brake and the second contact system separating brake.

Fig. 7 c are another visual angle schematic diagram of Fig. 7 b.

Fig. 7 d are that switching mechanism described in the utility model is located at the first contact system separating brake and the in automatic change-over Structure chart during double points of positions of two contact system separating brakes.

Fig. 7 e are that switching mechanism described in the utility model is located at the first contact system with limit assembly in automatic change-over Matching chart during double points of positions of system separating brake and the second contact system separating brake.

Fig. 8 be switching mechanism described in the utility model from double points of positions into the first closing position motion process with The matching chart of limit assembly.

Fig. 9 is that the utility model is located under automatic mode in automatic change-over, and rotating disk is matched somebody with somebody with motor operated driving mechanism Close schematic diagram.

Figure 10 is that the utility model is located under manual mode in automatic change-over, and rotating disk is matched somebody with somebody with motor operated driving mechanism Close schematic diagram.

Figure 11 is that the utility model is located under locking mode in automatic change-over, and rotating disk is matched somebody with somebody with motor operated driving mechanism Close schematic diagram.

Figure 12 is operating mechanism figure of the utility model in automatic change-over.

In figure：1. knob, 11. square shafts；2. knob assembly；3. stop part, 31. fixed mounts, 311. through holes, 312. pin, 313. fix pin, 32. rotating disks, 321. axle platforms, 322. square holes, 323. stop blocks, 324. first sides week profile, 325. second sides week Profile；33. support base plates, 332. grooves, 34. screws；4. limit assembly, 40. pivots, 401. first shaft parts, 402. second shaft parts, 403. first steps, 404. shaft ends, 405. second steps, 41. first connecting rod components, 411. first drive rods, 412. first are stopped Pin, 4121. first stopper protrusions, 42. second connecting rod components, 421. second drive rods, 422. second gear-stopping bars, 4221. Two stopper protrusions, 43. elastic components, 44. bearing pins, 45. first limit shafts, 45 ' the second limit shafts of, 46. first connecting shafts, 46 ' Second connecting shaft；5. switching mechanism, 50. frameworks, 501. driving gear groups, 51. first transition components, 511. main shafts, 5112. One connecting rod, 5113. second connecting rods, 512. first drive shafts, 513. spring assemblies, 5131. first matching seats, 514. main shaft drives Bar, 5141. drive rod arc grooves, 5142. breach, 515. driven gear components, 5151. driven gear arc grooves, 516. Two drive shafts, 517. connection sheets, 518. impeller-hubs, 52. second transition components；6. moving contact；7. static contact；8. panel；9. electric Motivation drive mechanism, 91. fixed plates, 92. motors, 93. train of reduction gears, 94. clutches, 941. clutch gear groups, 942. Lever assembly, 943. levers, 944. kinematic links.

Specific embodiment

Applicant will be described in detail with reference to accompanying drawing to specific embodiment of the present utility model below, but applicant couple The description of embodiment is not the limitation to technical scheme, any to be changed in the form rather than substance all according to the utility model design Protection domain of the present utility model should be considered as.

Fig. 1 is referred to, the utility model is related to a kind of operating mechanism of automatic change-over, including switching mechanism 5, described Switching mechanism 5 as prior art, the first contact system with correspondence automatic change-over closes a floodgate and the second contact system Double points of first closing position of separating brake, the first contact system separating brake of corresponding automatic change-over and the second contact system separating brake The second closing position that the first contact system separating brake and the second contact system of position and correspondence automatic change-over close a floodgate.Behaviour Make mechanism by electric operating or manually operated, drive switching mechanism 5 to switch between above-mentioned position.Switching mechanism 5 includes framework 50th, the first transition components 51 and the second transition components 52 in framework 50 are arranged on, wherein, the first transition components 51 are used to drive The divide-shut brake of the first contact system, the second transition components 52 are used to drive the divide-shut brake of the second contact system.First transition components 51 and second transition components 52 be identical Liang Tao mechanisms, be symmetrically disposed in framework 50, below only with the first transition components Illustrated as a example by 51.

Refer to Fig. 5 d, Fig. 6 d, Fig. 7 d, Fig. 8, and refering to Fig. 1, the first described transition components 51 include main shaft 511, the One drive shaft 512, spring assembly 513, main shaft drives bar 514, driven gear component 515, the second drive shaft 516 and connection sheet 517。

The course of work to switching mechanism 5 is illustrated below.

Please continue to refer to Fig. 7 d and Fig. 8, when automatic change-over is equal in double points of positions, i.e. first, second contact systems During in separation point position, the driving gear of the medium position of the side of framework 50 is hubbed on by electric operating or manually operated driving Group 501 is rotated, and driving gear group 501 drives driven gear component 515 to rotate counterclockwise.Due to the end of the first drive shaft 512 In the driven gear arc groove 5151 of driven gear component 515, the abutting end of driven gear arc groove 5151 drives first The motion of drive shaft 512 carrys out compression spring assembly 513.When the first drive shaft 512 reaches mechanical dead point, i.e. the first drive shaft 512 When the straight line and spring assembly 513 that center is constituted with the centre of gyration of main shaft 511 are located at same straight line, the storage of spring assembly 513 Maximum can be reached.In the thermal energy storage process of spring assembly 513, a conflict of the drive rod arc groove 5141 of main shaft drives bar 514 The second drive shaft 516 at end is driven to another conflict end of drive rod arc groove 5141 by connection sheet 517.Once first drives Axle 512 crosses the mechanical dead point, and the motion energy of the first transition components 51 will be provided by spring assembly 513.In spring assembly During 513 release energy, specifically, the first drive shaft 512 is continued to press on connection sheet 517 and rotate counterclockwise, by connecting The second drive shaft 516 that piece 517 drives promotes main shaft drives bar 514 to rotate counterclockwise.Main shaft drives bar 514 make main shaft 511 with Rotate, and by first connecting rod 5112, second connecting rod 5113 drive moving contact 6 carry out closing motion, until turning to Closure is contacted with static contact 7, position shown in Fig. 5 d is reached.Said process is that the first transition components 51 drive the first contact system to enter The process that row closes a floodgate, the process that the second contact system closes a floodgate is same, i.e., changed to described in Fig. 6 d from the position shown in Fig. 7 d Position, herein omit repeat.

Please continue to refer to Fig. 5 d and Fig. 8, drive driving gear group 501 counterclockwise by external force (manpower or electric power) Rotate, driving gear group 501 drives driven gear component 515 to rotate clockwise, driven gear component 515 is driving the first driving Compression spring assembly 513 while axle 512 is moved.When the first drive shaft 512 reaches mechanical dead point, i.e. the first drive shaft 512 It is centrally located at the centre of gyration and the first matching seat 5131 of main shaft 511（Another of main spring hangs a little）The centre of gyration company When on line, the energy storage of spring assembly 513 reaches maximum, meanwhile, the drive rod arc groove 5,141 1 positioned at main shaft drives bar 514 is supported The second drive shaft 516 at contravention is driven to another conflict end of drive rod arc groove 5141 by connection sheet 517.Once first drives Moving axis 512 crosses the mechanical dead point, and the motion energy of switching mechanism 51 will be provided by spring assembly 513.In spring assembly 513 During releasing energy, specifically, the driven gear circular arc of driven gear component 515 is acted on by the first drive shaft 512 Continue clockwise movement, and the second drive shaft 516 being connected with connection sheet 517 promoting connection sheet 517 in the conflict end of groove 5151 Main shaft drives bar 514 is promoted to rotate clockwise.Main shaft drives bar 514 makes main shaft 511 rotate therewith, and by first connecting rod 5112nd, the drive of second connecting rod 5113 moving contact 6 carries out cut-offfing motion, until turn to being separated with static contact 7, reaches described in Fig. 7 d Position.Said process is the process that the first contact system of driving of the first transition components 51 carries out separating brake, the second contact system point The process of lock is same, i.e., changed to position shown in Fig. 7 d from position shown in Fig. 6 d, omits herein and repeats.

Referring again to Fig. 1, described operating mechanism also includes locking device, and described locking device includes knob assembly 2 With limit assembly 4, described knob assembly 2 is with operating position and latched position.When switching mechanism 5 is located at the first closing position Or during the second closing position, switching mechanism 5 acts on limit assembly 4 so that the backstop knob assembly 2 of limit assembly 4 is to locking bit Put rotation；When switching mechanism 5 is located at double points of positions, limit assembly 4 releases the backstop to knob assembly 2.

Fig. 1, Fig. 4 are referred to, described limit assembly 4 includes first connecting rod component 41, second connecting rod component 42 and makes The elastic component 43 that first connecting rod component 41 and second connecting rod component 42 reset, first connecting rod component 41 includes being hubbed on framework 50 And promote first drive rod 411 and the first drive rod 411 of rotation to be hinged and follow the first drive rod by the first transition components 51 First gear-stopping bar 412 of 411 actions, second connecting rod component 42 includes being hubbed on framework 50 and being promoted by the second transition components 52 The second drive rod 421 and the second drive rod 421 for rotating are hinged and follow the second gear-stopping bar that the second drive rod 421 is acted 422, wherein, the first gear-stopping bar 412 is hinged with the second gear-stopping bar 422, when switching mechanism 5 is located at the first closing position, the The backstop knob assembly 2 of one gear-stopping bar 412 is rotated to latched position；When switching mechanism 5 is located at the second closing position, the second backstop The backstop knob assembly 2 of bar 422 is rotated to latched position；When switching mechanism 5 is located at double points of positions, the first gear-stopping bar 412 and the Two gear-stopping bars 422 release the backstop to knob assembly 2.

Preferably, Fig. 1,4 are referred to, described limit assembly 4 also includes pivot 40, and pivot 40 is erected at switching mechanism 5 On, including be located at first shaft part 401 with first diameter of axle at middle part, set up separately in the both sides of shaft part 401 with second diameter of axle Second shaft part 402 and set up separately in the shaft end 404 with the 3rd diameter of axle of the both sides of the second shaft part 402, in the first shaft part 401 and Being constituted between two shaft parts 402 has first step 403, and being constituted between the shaft part 402 of shaft end 404 and second has second step 405.Institute The first drive rod 411 stated has a pair, and surface cover parallel to each other is located on the second shaft part 402 of pivot 40, and both are by the One connecting shaft 46 is connected with the first limit shaft 45, and is driven by the first transition components 51 and rotated jointly, and described One end of one gear-stopping bar 412 is hinged by the first connecting shaft 46 with the first drive rod 411.The second described drive rod 421 has one Right, surface cover parallel to each other is located on the second shaft part 402, and the first drive rod 411 and the second drive rod 421 positioned at inner side are supported Lean against on first step 403.A pair second drive rods 421 are connected by the second connecting shaft 46 ' with the second limit shaft 45 ', and Driven by the second transition components 52 and rotated jointly, one end of the second gear-stopping bar 422 passes through the second connecting shaft 46 ' and second Drive rod 421 is hinged, and the other end of the other end of the first gear-stopping bar 412 and the second gear-stopping bar 422 is hinged by bearing pin 44.At this In embodiment, the first gear-stopping bar 412 and the second gear-stopping bar 422 are preferably configured to the same part of identical planform. Described elastic component 43 is torsion spring, is set on the first shaft part 401 of pivot 40, and one end is resisted against on the first limit shaft 45, separately One end is resisted against on the second limit shaft 45 '.Pivot 40 after the axis hole that shaft end 404 probes on the side plate of framework 50, second Step 405 is resisted against axis hole edge.The first described limit shaft 45 and the first connecting shaft 46 can be replaced by an axle, instead of rear Axle be both used to keep a pair relative positions of the first drive rod 411, and for realizing the first drive rod 411 and the first gear-stopping bar 412 are hinged, at the same be additionally operable to one end against.Equally, the second described limit shaft 45 ' and the second connecting shaft 46 ' Can be replaced by an axle.Elastic component of the present utility model 43 is not limited to above-mentioned torsion spring structure, or extension spring, stage clip, only Can make, switching mechanism 5 in the first closing position or the second closing position in double points of position motion processes, the first conversion group The transition components 52 of part 51 or second are progressively cancelled when acting on the pushing of limit assembly 4, effect of the limit assembly 4 in elastic component 43 Under be returned to original position.

Refer to Fig. 2, Fig. 3 a, Fig. 3 b and combine Fig. 1, described knob assembly 2 includes being hubbed on automatic change-over Knob 1 on panel 8 and the stop part 3 installed is connected with knob 1.Described knob 1 is engaged with panel 8, can be given " locking ", " manual ", three kinds of " electric " instruction, wherein " manual ", it is " electric " be operating position, " locking " is latched position, Latched position can not be operated to automatic change-over.Described knob 1 is constituted towards the middle position of the side of stop part 3 There is square shaft 11.Described stop part 3 includes fixed mount 31, rotating disk 32 and support base plate 33.Opened up on described fixed mount 31 There is through hole 311, described rotating disk 32 has axle platform 321 in the center composition towards the side of fixed mount 31, and rotating disk 32 passes through axle platform 321 It is hubbed on fixed mount 31 with the cooperation of through hole 311.Described axle platform 321 offers square hole 322, described side in center Axle 11 realizes the synchronous axial system of knob 1 and rotating disk 32 with the inserting of square hole 322.Rotating disk 32 is projected in the dorsad side of fixed mount 31 There is stop block 323, described the first gear-stopping bar 412 and the second gear-stopping bar 422 each extends over to form use towards the direction of stop part 3 In the first stopper protrusion 4121 and the second stopper protrusion 4221 that are leant with stop block 323.The first described stopper protrusion 4121 and second stopper protrusion 4221 be located on the movement locus that stop block 323 is rotated with knob 1.The described He of support base plate 33 Realize being relatively fixed by the fixation of screw 34 and the inserting of groove 332 and pin 312 between fixed mount 31, rotating disk 32 is sandwiched Between fixed mount 31 and support base plate 33.Finally, stop part 3 is fixed to switching mechanism 5 by the fixed pin 313 of fixed mount 31 Framework 50 on, and the position in the middle of the first transition components 51 and the second transition components 52.

Hereinafter, mechanism of the described switching mechanism 5 to locking device is described in detail.

Fig. 7 d, 7e are referred to, described switching mechanism 5 is located at double points of positions, and the first connecting shaft 46 is located at main shaft drives bar In the breach 5142 of 514 outlines, the first drive rod 411 is protected by the effect of main shaft drive rod 514 and the effect of elastic component 43 Maintain an equal level weighing apparatus, and now, as shown in Fig. 7 b, 7c, the stop block 323 of stop part 3 is not by the first stopper protrusion of the first gear-stopping bar 412 4121 and second gear-stopping bar 422 the backstop of the second stopper protrusion 4221, limit assembly 4 do not carry out backstop to knob assembly 2, such as schemes Shown in 7a, described knob 1 any switching laws, i.e. knob 1 be able to can revolve between " electric ", " manual ", " locking " three positions Go to " locking " position.

Fig. 8 is referred to, shows that described switching mechanism 5 moves to Fig. 5 d, 5e institute in the double point positions as shown in Fig. 7 d Effect during the first contact system closing position for showing to locking device.In the process, the company of the first transition components 51 Contact pin 517 is rotated counterclockwise, and impeller-hub 518 thereon pushes the first drive rod 411 along the profile of the first drive rod 411, makes It overcomes the power of elastic component 43 and is rotated counterclockwise around pivot 40, and then the breach 5142 with the outline of main shaft drives bar 514 takes off From then, main shaft drives bar 514 pushes the first connecting shaft 46 when rotating counterclockwise, and the first drive rod 411 is overcome elastic component 43 Power and continue around pivot 40 and rotate counterclockwise.Now because the second contact system is in open position, the second transition components 52 It is failure to actuate, therefore the second drive rod 421 keeps balance in the presence of the second transition components 52 with elastic component 43, is failure to actuate；Again Due to rotating counterclockwise for the first drive rod 411, the first gear-stopping bar 412 is promoted and acted, the first gear-stopping bar 412 and Two gear-stopping bars 422 are rotated around bearing pin 44, and angle between the two diminishes so that the first stopper protrusion 4121, the second backstop are convex 4221 are played to be moved to the position near rotating disk 32.The first contact system closing position shown in Fig. 5 d is moved in switching mechanism 5 When putting, the first stopper protrusion 4121 is located in the movement locus that stop block 323 is rotated with knob 1, specifically refer to Fig. 5 b, 5c.Now, as shown in Figure 5 a, knob 1 can between " electric ", " manual " two positions any switching laws, such as knob 1 is " manual " About 10 ° are rotated again to " locking " position or knob 1 rotates about 100 ° again " electric " to " locking " position, then rotating disk 32 On stop block 323 will be resisted against in the first stopper protrusion 4121, prevent knob 1 again to the rotation of " locking " position, the i.e. nothing of knob 1 Method rotates to " locking " position.

The second contact system that double point positions in described switching mechanism 5 as shown in Fig. 7 d are moved to shown in Fig. 6 d closes a floodgate During position, described the second transition components 52 ibid, are moved to the effect of second connecting rod component 42 in switching mechanism 5 When on the second contact system closing position shown in Fig. 6 d, the second stopper protrusion 4221 is located at what stop block 323 was rotated with knob 1 In movement locus, Fig. 6 b, 6c are specifically referred to.Now, as shown in Figure 6 a, knob 1 can be in " electric ", " manual " two positions Between any switching laws, such as knob 1 rotates about 10 ° or knob 1 " electric " to " locking " position again " manual " to " locking " position Put and rotate again about 100 °, then the stop block 323 on rotating disk 32 will be resisted against in the second stopper protrusion 4221, prevent knob 1 again Rotated to " locking " position, i.e., knob 1 cannot rotate to " locking " position.

It should be noted that the architectural feature acted on limit assembly 4 in switching mechanism 5, for example：Main shaft drives bar 514th, connection sheet 517, impeller-hub 518 are not limited to structure disclosed in above preferred embodiment, can also be set in switching mechanism 5 and pushed away The force application part of the various ways such as moving axis, boss, as long as realizing：At double points of positions, can be to the work of the first drive rod 411 With so that the first drive rod 411 keeps balance static；From double points of positions into the first contact system closing position transfer process, The first drive rod 411 can be pushed, it is departed from breach 5142, then, can continue to the first drive rod 411 of pushing and act, Drive the first gear-stopping bar 412 to act and then reach the purpose of " preventing knob 1 from being rotated to latched position ".

The operating mechanism of automatic change-over of the present utility model also includes motor operated driving mechanism 9, motor driving machine Structure 9 includes fixed plate 91 and the motor 92, train of reduction gears 93 and the clutch 94 that are separately positioned in fixed plate 91, described Clutch 94 include clutch gear group 941 and lever assembly 942, by lever assembly 942 to the work of clutch gear group 941 With and realize manually operated being separated between electric operation.

Lever assembly 942 includes lever 943 and kinematic link 944, and both constitute T-shaped structure.Rotating disk 32 has first Side week profile 324 and second side week profile 325, in the present embodiment, the first side week profile 324 is in circular arc, all wheels in the second side Distance arc radius less than first side week profile 324 of the exterior feature 325 apart from the center of rotation of rotating disk 32.Such as Fig. 9, with reference to Fig. 5 a, when When knob 1 is located at " electric " position, the second side week profile 325 faces kinematic link 944, lever assembly 942 is not produced and is pushed away Pressure is acted on, and is intermeshed between the clutch gear of clutch gear group 941 and is kept drive connection, and thus, automatic change-over exists During " electric " position, the drive connection of switching mechanism 5 and motor 92 is kept, drive is exported by the motor 92 of motor operated driving mechanism 9 Power, switch is automatically brought into operation.Such as Figure 10, with reference to Fig. 5 a, when knob 1 is located at " manual " position, rotating disk 32 is rotated so that First side week profile 324 is faced and pushes kinematic link 944, and lever assembly 942 pushes the trip(ping) lever of clutch gear group 941, makes It is mutually disengaged between the clutch gear for obtaining clutch gear group 941, is disconnected the drive connection between switching mechanism 5 and motor 92, Thus, automatic change-over is at " manual " position, realize it is manually operated separated between electric operation, operating personnel exist When manually operated, due to train of reduction gears 93 and motor 92 need not be driven so that manually operated more laborsaving, safety.Rotating disk 32 with Knob 1 and turn over 90 ° in " manual " position, when knob 1 reaches " locking " position, such as Figure 11, with reference to Fig. 5 a, all profiles in the first side 324 still face and push kinematic link 944, and lever assembly 942 pushes the trip(ping) lever of clutch gear group 941 so that clutch tooth Be mutually disengaged between the clutch gear of wheel group 941, be disconnected drive connection, thus, automatic change-over at " locking " position, The action that prevents motor 92 and the maloperation that produces.

Claims (6)

1. a kind of operating mechanism of automatic change-over, including：One switching mechanism (5), described switching mechanism (5) is with correspondence First contact system of automatic change-over closes a floodgate and the first closing position of the second contact system separating brake, corresponding automatic conversion are opened The the first contact system separating brake for closing and double points of positions, the first contact system of correspondence automatic change-over of the second contact system separating brake The second closing position that system separating brake and the second contact system close a floodgate, described switching mechanism (5) including framework (50), be arranged on frame The first transition components (51) and the second transition components (52) in frame (50), the first transition components (51) are for driving the first contact The divide-shut brake of system, divide-shut brake of the second transition components (52) for the second contact system of driving；It is characterized in that：Also include one Locking device, described locking device includes knob assembly (2) and limit assembly (4), and described knob assembly (2) is with operation Position and latched position, when switching mechanism (5) is positioned at the first closing position, the first transition components (51) act on limit assembly (4) such that limit assembly (4) backstop knob assembly (2) rotate to latched position；When switching mechanism (5) is positioned at the second closing position When, the second transition components (52) act on limit assembly (4) and cause limit assembly (4) backstop knob assembly (2) to latched position Rotate；When switching mechanism (5) is positioned at double points of positions, limit assembly (4) releases the backstop to knob assembly (2).

2. the operating mechanism of automatic change-over according to claim 1, it is characterised in that described limit assembly (4) bag Include first connecting rod component (41), second connecting rod component (42) and make first connecting rod component (41) and second connecting rod component (42) multiple The elastic component (43) of position, first connecting rod component (41) turns including being hubbed on framework (50) and by the first transition components (51) promotion Dynamic the first drive rod (411) and the first drive rod (411) is hinged and follows the first backstop that the first drive rod (411) is acted Bar (412), second connecting rod component (42) promotes rotate the including being hubbed on framework (50) and by the second transition components (52) Two drive rods (421) and the second drive rod (421) are hinged and follow the second gear-stopping bar that the second drive rod (421) is acted (422), the first gear-stopping bar (412) is hinged with the second gear-stopping bar (422), when switching mechanism (5) is positioned at the first closing position, First gear-stopping bar (412) backstop knob assembly (2) rotate to latched position；When switching mechanism (5) is positioned at the second closing position, Second gear-stopping bar (422) backstop knob assembly (2) rotate to latched position；When switching mechanism (5) is positioned at double points of positions, first Gear-stopping bar (412) and the second gear-stopping bar (422) release the backstop to knob assembly (2).

3. the operating mechanism of automatic change-over according to claim 2, it is characterised in that described limit assembly (4) is also Including pivot (40), described pivot (40) is erected on framework (50), and described the first drive rod (411) has a pair, each other Parallel to be set on pivot (40) face-to-face, both are connected by the first connecting shaft (46) with the first limit shaft (45), described One end of the first gear-stopping bar (412) be hinged with the first drive rod (411) by the first connecting shaft (46)；The second described driving Bar (421) has a pair, and surface cover parallel to each other is located on pivot (40), and both are by the second connecting shaft (46 ') and the second limit Position axle (45 ') is connected, and one end of the second gear-stopping bar (422) is cut with scissors by the second connecting shaft (46 ') with the second drive rod (421) Connect, the other end of the first gear-stopping bar (412) and the other end of the second gear-stopping bar (422) are hinged by bearing pin (44), described bullet Property part (43) is torsion spring, and torsion spring is set in the middle part of pivot (40), and one end is resisted against on the first limit shaft (45), the other end against On the second limit shaft (45 ').

4. the operating mechanism of automatic change-over according to claim 2, it is characterised in that described knob assembly (2) bag The knob (1) being hubbed on the panel of automatic change-over (8) and the stop part (3) that installation is connected with knob (1) are included, it is described The first gear-stopping bar (412) and the second gear-stopping bar (422) on towards the direction of stop part (3) each extended over for stop part (3) the first stopper protrusion (4121) and the second stopper protrusion (4221) for leaning.

5. the operating mechanism of automatic change-over according to claim 4, it is characterised in that described knob (1) is in direction The middle position of stop part (3) side is constituted square shaft (11), and described stop part (3) includes fixed mount (31) and rotating disk (32) through hole (311), is offered on described fixed mount (31), described rotating disk (32) is in towards fixed mount (31) side Centre composition has axle platform (321), and rotating disk (32) is hubbed on fixed mount (31) by the cooperation of axle platform (321) and through hole (311), institute The axle platform (321) stated offers square hole (322) in center, and described square shaft (11) is realized with square hole (322) inserting The synchronous axial system of knob (1) and rotating disk (32), rotating disk (32) is equipped with for backstop first in the side of dorsad fixed mount (31) The stop block (323) of stopper protrusion (4121) and the second stopper protrusion (4221).

6. the operating mechanism of automatic change-over according to claim 1, it is characterised in that described operating mechanism is also wrapped Include by being connected with switching mechanism (5) come the motor operated driving mechanism (9) for making automatic change-over carry out electric operation, electricity Motivation drive mechanism (9) includes fixed plate (91) and the motor (92), the train of reduction gears that are separately positioned in fixed plate (91) (93) and clutch (94), described clutch (94) includes clutch gear group (941) and lever assembly (942)；It is described Knob assembly (2) on be provided with the first side week profile (324) and the second side week profile (325), all profiles (324) in the first side are in Circular arc, the second side week profile (325) is less than the first side week profile (324) apart from the distance of the center of rotation of knob assembly (2) Arc radius, the operating position of knob assembly (2) includes manual operating position and electric operation position, when knob assembly (2) During positioned at manual operating position and latched position, the first side week profile (324) acts on lever assembly (942), by clutch tooth The effect of wheel group (941) and release the drive connection between switching mechanism (5) and motor (92), when knob assembly (2) is positioned at electricity During gas operating position, the second side week profile (325) releases the pushing effect to lever assembly (942), so as to keep switching mechanism (5) with the drive connection of motor (92).