CN110931318B

CN110931318B - Actuating mechanism of parallel control circuit breaker

Info

Publication number: CN110931318B
Application number: CN201911113455.3A
Authority: CN
Inventors: 尹德成; 陈雷; 刘健勇; 张彬
Original assignee: Tianjin Aviation Mechanical and Electrical Co Ltd
Current assignee: Tianjin Aviation Mechanical and Electrical Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2021-12-24
Anticipated expiration: 2039-11-14
Also published as: CN110931318A

Abstract

The invention relates to an actuating mechanism of a parallel control switch, and provides an actuating mechanism of a parallel control circuit breaker, which comprises a button component, a plurality of assemblies A, a plurality of assemblies B, a plurality of assemblies C and a connecting device, wherein the plurality of assemblies A2, the plurality of assemblies B3 and the plurality of assemblies C4 are respectively connected with a circuit in a three-phase circuit. The button part can realize simultaneous manual closing and opening of a plurality of assemblies and can display the on and off states of a product, and the plurality of assemblies can be converted from the off state to the on state under the driving of the button part.

Description

Actuating mechanism of parallel control circuit breaker

Technical Field

The invention relates to an actuating mechanism of a parallel control switch, which is applied to a parallel control circuit breaker, in particular to a small parallel control switch, and realizes the control of a multi-line circuit by controlling the action position of a part in a control structure.

Background

The parallel control switch is applied to control of a multiphase line and used for controlling opening and closing of the multiphase line, the switch can have a circuit protection function, and when an overload condition occurs in the line, the switch can be automatically opened to prevent the circuit from generating an overcurrent condition. However, the existing parallel control switch has a large volume, adopts a plurality of buttons for independent control, fixes the buttons together by using a fixing device during parallel control, and performs parallel control operation by virtue of external acting force, so that the action process is insensitive and the operation is complex; although the fixing device for fixing the plurality of buttons has a connecting function, the fixing device is arranged at the outer end of a product, so that the volume of the product is increased, the space utilization is not facilitated, and the fixing device is particularly suitable for special vehicles, aircrafts and other special occasions.

Disclosure of Invention

The actuating mechanism of the parallel control circuit breaker is applied to the parallel control switch, one button realizes the synchronous control of a plurality of switches, and when the switch is switched off, the switches are synchronously switched off, so that the sensitivity of the switch action is improved, and the volume of the switch can be reduced. Meanwhile, the connecting device is arranged in the product, so that the overall dimension of the product is reduced, the connecting device is driven by means of the internal structure of the product, the action sensitivity can be improved, and the operation is simple.

The technical scheme provided by the invention provides an actuating mechanism of a parallel control circuit breaker, which comprises a button component 1, a plurality of components A2, a plurality of components B3, a plurality of components C4 and a connecting device 6, wherein the plurality of components A2, the plurality of components B3 and the plurality of components C4 are respectively connected with a circuit in a three-phase circuit;

the button part 1 is matched with the multinomial module B3 and is arranged at the upper end of the multinomial module B3, and the multinomial module A2 and the multinomial module C4 are respectively connected to two sides of the multinomial module B3 through connecting devices 6; the multi-item assembly A2, the multi-item assembly B3 and the multi-item assembly C4 have the same structure; the multiple item assembly B3 includes a bracket member 31;

the connecting device 6 comprises a lever 61, and both ends of the lever 61 are connected with the bracket parts of the multi-item assembly A2 and the multi-item assembly C4; the link 14 of the button member 1 is connected to the holder member 31 of the multinomial assembly B3 through the middle portion of the lever 61.

Further, the connecting device 6 further comprises a middle mounting plate 621 and a fastener 64, the fastener 64 penetrates through the middle mounting plate 621, and both ends of the fastener 64 are fixedly connected with the multiple-unit assembly a2 and the multiple-unit assembly C4 respectively; the intermediate mounting plate 621 is fixedly disposed on top of the housing of the multi item assembly B3.

Further, the connecting device 6 further comprises a two-end mounting plate 622 and a cover plate 63, wherein the two-end mounting plate 622 and the cover plate 63 are connected with the shells of the multi-item assembly A2 and the multi-item assembly C4; the two ends of the fastener 64 are respectively matched and fixedly connected with a plurality of modules A2, a plurality of modules B3 and a plurality of modules C4 through two end mounting plates 622 and a middle mounting plate 621.

Furthermore, the lever 61 comprises a U-shaped structural part 611 and two extension parts 612, and the middle of the bottom of the U-shaped structural part 611 comprises a through notch; the ends of the two sides of the U-shaped structure part 611 in the same direction contain circular notches 614, and the center lines of the two circular notches 614 are on the same straight line; two extending parts 612 are connected with the other end parts of the two sides of the U-shaped structure part 611 in the other direction, and the end parts of the extending parts 612 respectively comprise a trapezoidal protrusion 615.

Further, the connecting device 6 further comprises a connecting plate component 36, and the connecting plate component 36 comprises a large stepped pin 361, a middle stepped pin 362, a small stepped pin 363 and a pin mounting plate 364; one end of a large stepped pin 361 is arranged at one side of the pin mounting plate 364, and the other end of the large stepped pin 361 is matched with the corresponding support parts of the multi-item assembly A2 and the multi-item assembly C4; one end of the small stepped pin shaft 363 is mounted on the other side of the pin shaft mounting plate 364, and the other end of the small stepped pin shaft 363 is mounted on a bracket component of the multi-item assembly B3; one end of an echelle pin 362 is mounted to the other side of the pin mounting plate 364 and one end of the echelle pin 362 mates with a circular notch 614 in the lever 61.

Further, the connecting device 6 further comprises a position baffle part 5, the position baffle part 5 comprises a baffle 51 and a spring piece 52,

the middle position of the partition board 51 is a strip-shaped through groove 513, and the upper part of one end of the strip-shaped through groove 513 is provided with an L-shaped groove 514; the spring leaf 52 is arranged in the L-shaped groove 514;

the position spacer members 5 are mounted between the multi-item assembly a2 and the multi-item assembly B3 and between the multi-item assembly B3 and the multi-item assembly C4, respectively, and the position spacer members 5 are secured by fasteners 64.

Further, the button part 1 comprises a mounting screw sleeve part 11, a button 12, a bushing 13, a connecting rod 14, a first bracket 15, a pin 16 and a return spring 17;

the button 12 and the bush 13 are on the same axis, and the bush 13 is arranged at the bottom of the button 12; the mounting screw sleeve part 11 is sleeved outside the button 12 and the bush 13;

the upper end of the first bracket 15 is clamped in the inner cavities of the button 12 and the bush 13; the return spring 17 is sleeved outside the first support 15 and is positioned in the inner cavity of the bushing 13, one end of the return spring 17 is limited at the top of the inner cavity of the bushing 13, and the other end of the return spring 17 is limited at the bottom of the inner cavity of the mounting screw sleeve part 11; one end of the link 14 is connected to the lower end of the first bracket 15.

Further, the button member 1 includes a pin 16 penetrating lower ends of the connecting rod 14 and the first bracket 15 to fixedly connect the connecting rod 14 and the first bracket 15.

The invention has the technical effects that: the synchronous control of a plurality of switches is realized to a button, and when breaking simultaneously, a plurality of switches break off in step, and connecting device places the product inside in simultaneously, has reduced the overall dimension of product, and connecting device drives with the help of the product inner structure, improves the sensitivity of switching action, can reduce the volume of switch.

Drawings

FIG. 1 is an exploded view of a control structure of a parallel control switch;

FIG. 2 is a fragmentary view of the button assembly construction;

FIG. 3 is an exploded view of the button assembly;

FIG. 4 is an exploded view of component B;

FIG. 5 is a partially exploded view of the component B;

FIG. 6 is a schematic view of a bracket member configuration;

FIG. 7 is a first schematic view of a stent structure;

FIG. 8 is a second schematic structural view of the stent;

FIG. 9 is a first schematic view of the housing;

FIG. 10 is a second schematic structural view of the housing;

FIG. 11 is a schematic view of the moving contact part;

fig. 12 is a first structural view of a trip plate component;

fig. 13 is a schematic sectional view of the trip plate member;

FIG. 14 is a schematic view of the adjusting screw member;

FIG. 15 is a schematic structural view of a bimetal element;

FIG. 16 is a schematic diagram of a connection plate structure;

FIG. 17 is a schematic view of an auxiliary bimetal structure;

FIG. 18 is a schematic view of the installation screw boss;

FIG. 19 is a schematic view of a link structure;

FIG. 20 is a schematic view of a construction of a spacer member in position;

FIG. 21 is a schematic view of a spring plate;

FIG. 22 is a schematic view of the construction of the connection device;

FIG. 23 is an exploded view of the connector assembly;

FIG. 24 is a schematic view of a lever structure;

FIG. 25 is a schematic structural view of a web member;

fig. 26 is a schematic diagram of a structure of the intermediate mounting plate.

Detailed Description

The invention provides an operation structure of a parallel control circuit breaker, which aims to realize high-sensitivity control of a parallel control switch, reduce the size of the switch and realize parallel control of multiple lines.

Fig. 1 is an exploded view of the control structure of the parallel control switch, and as shown in fig. 1, the operating structure includes a button member 1, a multi-item assembly a2, a multi-item assembly B3, a multi-item assembly C4 and a connecting device 6. The button component 1 is positioned in the middle of the mechanism, is matched with the multi-item component B3, is arranged at the upper end of the multi-item component B3, the multi-item component A2 and the multi-item component C4 are respectively positioned at two sides of the multi-item component B3, a position clapboard component 5 is arranged between the multi-item component A2 and the multi-item component B3, the position clapboard component 5 is also arranged between the multi-item component B3 and the multi-item component C4, a connecting device 6 fixes the multi-item component A2, the multi-item component B3, the multi-item component C4 and the position clapboard component 5 together, the button component 1 can realize the synchronous manual closing and opening of the multi-item component A2, the multi-item component B3 and the multi-item component C4 and can display the closing and opening states of the switch, and the multi-item component A2, the multi-item component B3 and the multi-item component C4 are changed from the closing state to the opening state during the internal mechanism change process of any multi-item component.

Fig. 2 is a sectional view of the button member, fig. 3 is an exploded view of the button member, and as shown in fig. 2 and 3, the button member 1 includes a mounting screw member 11, a button 12, a bushing 13, a link 14, a first bracket 15, a pin 16, and a return spring 17. Button 12 and bush 13 are on same axis, and bush 13 is installed in button 12 bottom, and the one end fixed mounting of first support 15 is in button 12 and bush 13 inner chamber, and return spring 17 installs in first support 15 outside and be located inside bush 13, and the inner structure cooperation of bush 13 is gone up to return spring 17's one end, and return spring 17's the other end is with the inner structure cooperation of installation cover part 11, and round pin axle 16 runs through in connecting rod 14 top and is connected to together with first support 15. The button 12 of the button component 1 and the installation screw sleeve component 11 have the same color, and the bushing 13 has a color different from the color of the button 12 and the installation screw sleeve component 11, for example, but not limited to, the color of the button 12 and the installation screw sleeve component 11 is black, and the color of the bushing 13 is white, when the product is in the closed state, the bushing 13 of the button component 1 enters the installation screw sleeve component 11, and at this time, the return spring 17 is in the compressed state, when the product is in the open state in the whole control structure, the bushing 13 of the button component 1 slides out from the interior of the installation screw sleeve component 11, and at this time, the return spring 17 is converted from the compressed state to the normal state.

Fig. 4 is an exploded view of the assembly B, and fig. 5 is a partially exploded view of the assembly B, and in conjunction with fig. 4 and 5, the multiple assembly B3 includes a bracket member 31, a trip plate member 32, a bimetal member 33, an auxiliary bimetal 34, an adjusting screw member 35, a connecting plate 37, a housing 38, and a lug 39. Two housings 38 of the multi-item assembly B3 are disposed at both ends of the multi-item assembly B for restraining the remaining parts of the multi-item assembly B3, a bracket member 31 is mounted inside the multi-item assembly B3 to be slidable relative to each other inside the two housings 38, a bimetal member 33 is mounted at one end of the housing 38,

fig. 6, 7, 8 and fig. 6, 7 and 8 show a bracket member structure, a first bracket structure and a second bracket structure, and in combination with fig. 6, 7 and 8, the bracket member 31 includes a movable contact member 311, a second bracket 312 and a first spring 313. The movable contact part 311 includes a fixing plate 3111 and a movable contact 3112, the movable contact 3112 is mounted at both ends of the fixing plate 3111, the fixing plate 3111 includes an i-shaped notch therein, and the i-shaped notch is adapted to be fitted with a groove portion 3127 in the upper structure 3121 of the second support 312.

Referring to fig. 7 and 8, the second support 312 is divided into an upper structure 3121 and a lower structure 3122, the upper structure of the second support 312 includes a first groove 3123 at a top end thereof, the first groove 3123 provides a movement space for the link 14 of the button member 1, the lower end of the upper structure 3121 is connected to the lower structure 3122, the upper structure 3121 includes a protruding portion 3124 at both ends of a middle portion thereof, the protruding portion 3124 is engaged with the first rectangular groove 383 of the housing 38 to ensure that the support member 31 can slide in a certain direction, the protruding portion 3124 includes a circular groove 3125 at the middle thereof, the upper structure 3121 includes a second groove 3126 at both ends thereof, the two second grooves 3126 are penetrated along the middle of the inside of the upper structure 3121 and are penetrated with the first groove 3123 at the top end of the upper structure 3121, the upper end of the structure 3122 is a cylindrical protrusion 31261 at the middle portion thereof, the cylindrical groove 3127 is a cylindrical groove 3127 having four uniformly distributed flat surfaces 3128 therein, the bottom end of the lower structure 3122 contains an inner round hole 3129, a cylindrical protrusion 31210 is connected with one end of a cylindrical groove 3127 inside the inner round hole 3129, and two ends of the cylindrical groove 3127 respectively contain a guide groove 31211.

Fig. 11 is a schematic structural diagram of the movable contact part, as shown in fig. 11, the movable contact part 311 is mounted at the bottom of the second bracket 312 and can slide in a first rectangular groove 383 at the bottom of the second bracket 312, the middle part of the movable contact part 311 is in contact with one end of the first spring 313, the other end of the first spring 313 is in contact with the second bracket 312, when a product is connected, the movable contact part 311 is connected with the connecting piece 39 to connect the product, and when the product is disconnected, the movable contact part 311 is disconnected from the connecting piece 39 to disconnect the product.

Fig. 9 is a schematic diagram of a first casing structure of fig. 9, and fig. 10 is a schematic diagram of a second casing structure of fig. 10, with reference to fig. 9 and fig. 10, a peripheral edge 382 of a casing 38 is higher than a middle portion 381, the middle portion 381 includes a first rectangular groove 383, a through round-head key groove 384 is formed at a bottom of the first rectangular groove 383, a through round-head key groove 385 and a special-shaped groove 386 are formed above two sides of the first rectangular groove 383, a semi-circular groove 387 is formed at a top end of the casing 38 and penetrates through the top end and the middle portion, a semi-circular groove 388 is formed at a bottom of the semi-circular groove 387, through holes 389 are formed at two ends of a top portion of the casing 38, a first guide groove 3810 and a first fixing groove 3811 are formed at an upper end of one side of the casing 38, wherein the first fixing groove 3811 is located at a middle portion of the first guide groove 3810, a second guide groove 3812 and a second fixing groove 3813 are formed at a lower end, wherein a semi-circular through hole 3814 is formed at an upper end of the other side of the casing 38, the bottom of the semicircular through hole 3814 is connected with a third fixing groove 3815, the lower end of the side of the semicircular through hole 3814 comprises a wedge-shaped fixing groove 3816, the bottom of the shell 38 comprises a triangular projection 3817, the upper end of the triangular projection 3817 comprises a semicircular groove 3818, the bottom of the semicircular groove 3818 comprises a first round hole 3819 penetrating through the triangular projection, the upper end of the first round hole 3819 comprises a bidirectional fixing groove 3820 along the axial direction of the semicircular groove 3818, and the top of the semicircular groove 3818 comprises a U-shaped groove 3821.

Fig. 12 is a schematic structural view of the trip plate member, and fig. 13 is a schematic structural view of the trip plate member, and in combination with fig. 12 and 13, the trip plate member 32 includes a locking end 321 and a guiding end 322. The trip plate part 32 is a T-shaped structure, the locking end 321 and the guiding end 322 are respectively arranged at two sides of the trip plate part 32, the middle part of the locking end 321 is provided with a through groove 3211 shaped like the Chinese character 'pin', the through groove 3211 shaped like the Chinese character 'pin' is used for being matched with the connecting rod 14 of the button part 1, and the guiding end is internally provided with a funnel-shaped notch 3221 for guiding the bimetal part 33.

Fig. 14 is a schematic structural view of the adjustment screw member, and as shown in fig. 14, the adjustment screw member 35 includes a threaded sleeve 351, a second spring 352, and a screw 353. The adjusting screw member 35 is installed in the third fixing groove 3815 of the housing 38, the second spring 352 is installed in the middle of the threaded sleeve 351 and the screw 353, one end of the screw 353 is installed on the threaded sleeve 351, a notch is formed at the top of the matching end of the screw 353 and the threaded sleeve 351, the notch is used for adjusting the matching position of the screw 353 and the threaded sleeve 351, and the other end of the screw 353 is of a cylindrical structure.

Fig. 15 is a schematic structural view of the bimetal part, and as shown in fig. 15, the bimetal part 33 includes a stationary contact base part 331, a lead wire 332, a deformation plate 333, and a connecting plate 334. The static contact seat part 331 is connected with the deformation sheet 333 through a wire, the connecting sheet 334 is connected with the deformation sheet 333 through a wire, the whole static contact seat part 331 is of a U-shaped structure, the static contact seat part 331 is matched with the U-shaped groove 3821 in the shell 38, the lower portion of the connecting sheet 334 comprises a threaded hole, and the threaded hole in the lower portion of the connecting sheet 334 is used for being matched with an external wire and used for fixing the external wire.

FIG. 16 is a schematic view of the connection plate structure, and as shown in FIG. 16, the connection plate 37 has a T-shaped structure as a whole. The bottom of the connecting plate 37 has a second rectangular groove 371, the second rectangular groove 371 cooperates with the auxiliary bimetal 34, and the end of the connecting plate 37 has a rectangular through groove 372, and the rectangular through groove 372 is used for cooperating with the connecting rod 14 of the button member 1.

Fig. 17 is a schematic structural diagram of the auxiliary bimetal, as shown in fig. 17, the middle portion of the upper end of the auxiliary bimetal 34 is a half-headed key-shaped through slot 341, the half-headed key-shaped through slot 341 is matched with the cylindrical structure of the screw 353 in the adjusting screw part 35, the middle portion of the lower end of the auxiliary bimetal 34 is a half-circular through slot 342, and the lower end of the auxiliary bimetal 34 is matched with the housing wedge-shaped slot 3816.

Fig. 18 is a schematic view of the installation screw sleeve structure, as shown in fig. 18, the exterior of the upper end of the installation screw sleeve part 11 is provided with a thread 111, the lower end is provided with a middle circular step positioning end 112 and a bottom circular step positioning end 113, and the bottom circular step positioning end 113 is matched with the semi-circular groove 387 of the shell 38.

Fig. 19 is a schematic view of a connecting rod structure, as shown in fig. 19, an upper end of a connecting rod 14 includes round hole ends 141 distributed on two sides, the round hole ends 141 are used for mounting a pin 16, a lower end of the connecting rod 14 includes a high end 142 and a low end 143, wherein the low end 143 is a plane, and two sides of the high end 142 include overhanging portions.

Fig. 22 is a schematic view showing the structure of the coupling device, fig. 23 is an exploded schematic view showing the structure of the coupling device, and as shown in fig. 22 and 23, the coupling device 6 includes a lever 61, a mounting plate multi-item assembly 62, a position spacer member 5, a connecting plate member 36, a cover plate 63, and a fastener 64.

Fig. 26 is a schematic structural diagram of the middle mounting plate, and as shown in fig. 23 and 26, the mounting plate multi-component 62 includes a middle mounting plate 621 and two end mounting plates 622, the middle mounting plate 621 is mounted on the upper end of the multi-component B3, the middle part of the middle mounting plate is a through round hole 6211, the through round hole 6211 is matched with the mounting screw sleeve component 11, two sides of the middle mounting plate are protrusions 6212, the protrusions 6212 are on the same side of the middle mounting plate, the protrusions both include second round holes 6213, the second round holes 6213 are used for being matched with the fasteners 64, and the middle part of the other side of the middle mounting plate includes a positioning end 6214.

Fig. 25 is a schematic structural view of the web member, and as shown in fig. 25, the web member 36 is used to transmit force between a plurality of components. The connecting plate member 36 includes a large stepped pin 361, a middle stepped pin 362, a small stepped pin 363, and a pin mounting plate 364, one end of the large stepped pin 361 is mounted on one side of the pin mounting plate 364, and the other end is fitted to a part of other multiple components, such as multiple component a2 or multiple component C4, one end of the middle stepped pin 362 and the small stepped pin 363 are mounted on the other side of the pin mounting plate 364, the other end of the small stepped pin 363 is mounted in a circular groove 3125 of a protruding portion of a bracket member of multiple component B, and one end of the middle stepped pin is fitted to a circular notch 614 of the lever 61.

Fig. 20 is a schematic view of a structure of the position spacer member, and fig. 21 is a schematic view of a structure of the spring plate, and as shown in fig. 20 and 21, the position spacer member 5 includes a spacer 51 and a spring plate 52. The upper part of the partition plate 51 is provided with two first through holes 511 which are respectively arranged at two sides, the middle position of the bottom is provided with a second through hole 512, the middle position of the partition plate 51 is provided with a strip-shaped through groove 513, the upper part of one end of the strip-shaped through groove is provided with an L-shaped groove 514, the spring piece 52 is arranged in the L-shaped groove 514 of the partition plate, the upper end part of the spring piece 52 is semicircular 521, the lower part of the spring piece 52 is in a Z-shaped 523 structure, and the other end of the semicircular 521 is in a strip-shaped structure 524.

Fig. 24 is a schematic diagram of the lever structure, and as shown in fig. 24, the lever 61 includes a U-shaped structural portion 611 and two extended portions 612. The middle of the bottom of the U-shaped structural part 611 is provided with a through notch, the ends of the two sides of the U-shaped structural part 611 in the same direction are provided with circular notches 614, the center lines of the two circular notches 614 are on the same straight line, the ends of the two sides of the U-shaped structural part 611 in the other direction are connected with two extension parts 612 of the lever 61, and the ends of the extension parts 612 are respectively provided with a trapezoidal protrusion 615.

The working principle of the invention is as follows:

the control structure of the parallel control switch related to the invention, mainly realize the opening and closing control of the parallel switch, when the switch is in the off state, the button 12 and bush 13 is far away from installing the threaded sleeve part 11, at this time the return spring 17 is in the extended state, the tie rod 14 and support part 31 are in the upper end of the body 38 in the multinomial assembly B3 at this time, trip plate part 32 and connecting plate 37 are in the upper end of bimetallic element 33 and supplementary bimetallic element 34 separately at this time, the moving contact part 311 is separated from connecting plate 334 and lug 39 in the support part 31, connecting plate part 36 and lever 61 in the support part 31 control multinomial assembly A2 and multinomial assembly C4 to be in the off state at the same time, therefore the whole parallel control circuit is in the off state.

When the button 12 is pressed downwards manually, the interval between the button 12 and the bushing 13 and the installation screw sleeve part 11 is shortened, the return spring 17 is in a compressed state, at this time, the first support 15 in the button part drives the connecting rod 14 to move downwards, the connecting rod 14 drives the support part 31 to move downwards, the support moves downwards along the rectangular groove 383 in the shell 38 under the limit of the protrusion 3124, after the movable contact part 311 in the support part 31 is contacted with the connecting sheet 334 and the connecting sheet 39 to a certain degree, the bushing 13 in the button part completely enters the installation screw sleeve part 11, at this time, the trip plate part 32 and the connecting sheet 37 are respectively positioned at the lower ends of the bimetal part 33 and the auxiliary bimetal part 34, the first spring 313 of the support part 31 is in a compressed state, and at this time, the circuit controlled by the multiple component B3 is in a closed state.

In the whole closing movement process, when the convex portion 3124 moves downwards along the rectangular groove 383 in the shell 38 under the limit, the circular groove 3125 in the middle of the convex portion 3124 drives the connecting plate member 36 to move downwards, and the connecting plate member 36 and the lever 61 move downwards together, so that the multi-item assembly a2 and the multi-item assembly C4 can be in a closed state at the same time, and therefore, the simultaneous closing of the multiple items in the whole parallel control switch is realized.

When the whole parallel control switch is subjected to external force, internal disturbance or impact, the closed state of the whole switch is damaged, and the parts in the multi-item assembly B3 perform reverse actions in the closing process until the bushing 13 in the button part is completely separated from the inside of the installation screw sleeve part 11, so that the whole switch is converted into an open state from the closed state, and the parallel line is disconnected.

Claims

1. An actuating mechanism of a parallel control circuit breaker is characterized by comprising a button component (1), a multinomial component A (2), a multinomial component B (3), a multinomial component C (4) and a connecting device (6), wherein the multinomial component A (2), the multinomial component B (3) and the multinomial component C (4) are respectively connected with a circuit in a three-phase circuit;

the button component (1) is matched with the multinomial component B (3) and is arranged at the upper end of the multinomial component B (3), and the multinomial component A (2) and the multinomial component C (4) are respectively connected to two sides of the multinomial component B (3) through a connecting device (6); the multinomial component A (2), the multinomial component B (3) and the multinomial component C (4) have the same structure; the multiple component B (3) comprises a support part (31);

the connecting device (6) comprises a lever (61), and two ends of the lever (61) are connected with the bracket parts of the multinomial component A (2) and the multinomial component C (4); a connecting rod (14) of the button component (1) passes through the middle part of the lever (61) and is connected with a bracket component (31) of the multinomial component B (3);

the connecting device (6) further comprises a middle mounting plate (621) and a fastening piece (64), the fastening piece (64) penetrates through the middle mounting plate (621), and two ends of the fastening piece (64) are fixedly connected with the multinomial component A (2) and the multinomial component C (4) respectively; the middle mounting plate (621) is fixedly arranged on the top of the shell of the multinomial component B (3);

the connecting device (6) further comprises two-end mounting plates (622) and a cover plate (63), wherein the two-end mounting plates (622) and the cover plate (63) are connected with the shells of the multinomial component A (2) and the multinomial component C (4); two ends of the fastener (64) are respectively matched and fixedly connected with the multinomial component A (2), the multinomial component B (3) and the multinomial component C (4) through two end mounting plates (622) and a middle mounting plate (621);

the connecting device (6) further comprises a position clapboard component (5), the position clapboard component (5) is respectively arranged between the multinomial component A (2) and the multinomial component B (3) and between the multinomial component B (3) and the multinomial component C (4), and the position clapboard component (5) is fixed by a fastener (64).

2. Actuator of parallel control breakers according to claim 1, characterized in that said lever (61) comprises a U-shaped structural portion (611) and two extensions (612), the U-shaped structural portion (611) comprising a through notch in the middle of its bottom; the ends of the two sides of the U-shaped structure part (611) in the same direction contain circular notches (614), and the central lines of the two circular notches (614) are on the same straight line; two extending parts (612) are connected with the other end parts of the two sides of the U-shaped structure part (611) in the other direction, and the end parts of the extending parts (612) respectively comprise a trapezoidal protrusion (615).

3. The actuator of the parallel control circuit breaker according to claim 1, wherein the connecting device (6) further comprises a connecting plate member (36), the connecting plate member (36) comprising a large stepped pin (361), a medium stepped pin (362), a small stepped pin (363), and a pin mounting plate (364); one end of a large stepped pin shaft (361) is arranged on one side of a pin shaft mounting plate (364), and the other end of the large stepped pin shaft is matched with the support parts of the corresponding multinomial component A (2) and the multinomial component C (4); one end of a small stepped pin shaft (363) is installed on the other side of the pin shaft installation plate (364), and the other end of the small stepped pin shaft (363) is installed on a support component of the multi-item component B (3); one end of the middle step pin shaft (362) is arranged on the other side of the pin shaft mounting plate (364), and one end of the middle step pin shaft (362) is matched with the circular notch (614) in the lever (61).

4. Actuator of a parallel control circuit breaker according to claim 1, characterized in that said position barrier member (5) comprises a barrier (51) and a leaf spring (52),

the middle position of the partition board (51) is a strip-shaped through groove (513), and the upper part of one end of the strip-shaped through groove (513) is provided with an L-shaped groove (514); the spring piece (52) is arranged in the L-shaped groove (514);

the position spacer members (5) are respectively installed between the multinomial module A (2) and the multinomial module B (3) and between the multinomial module B (3) and the multinomial module C (4), and the position spacer members (5) are fixed by fasteners (64).

5. The actuator of the parallel control circuit breaker according to claim 1, wherein the button part (1) comprises a mounting screw member (11), a button (12), a bushing (13), a link (14), a first bracket (15), a pin (16), and a return spring (17);

the button (12) and the bush (13) are on the same axis, and the bush (13) is arranged at the bottom of the button (12); the mounting screw sleeve part (11) is sleeved outside the button (12) and the bushing (13);

the upper end of the first bracket (15) is clamped in the inner cavities of the button (12) and the bush (13); the return spring (17) is sleeved outside the first support (15) and is positioned in the inner cavity of the bushing (13), one end of the return spring (17) is limited at the top of the inner cavity of the bushing (13), and the other end of the return spring is limited at the bottom of the inner cavity of the mounting threaded sleeve component (11); one end of the connecting rod (14) is connected with the lower end of the first bracket (15).

6. The actuator of the parallel control circuit breaker according to claim 1, wherein the button member (1) includes a pin (16) penetrating the connecting rod (14) and the lower end of the first bracket (15) to fixedly connect the connecting rod (14) and the first bracket (15).