CN115206739A

CN115206739A - Switching-on and switching-off operating mechanism and circuit breaker

Info

Publication number: CN115206739A
Application number: CN202210781676.3A
Authority: CN
Inventors: 魏首勋; 刘魁
Original assignee: Shenzhen Mantunsci Technology Co ltd
Current assignee: Shenzhen Mantunsci Technology Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-10-18

Abstract

The invention discloses an opening and closing operating mechanism and a circuit breaker, wherein the opening and closing operating mechanism is applied to the circuit breaker and comprises a transmission connecting piece, a switch assembly and an electric assembly, wherein the transmission connecting piece is rotatably arranged in a shell of the circuit breaker; the switch assembly comprises a handle part and a connecting shaft sleeve which are connected into a whole, the connecting shaft sleeve is coaxially connected with the transmission connecting piece, the connecting shaft sleeve is provided with a first end face opposite to the transmission connecting piece, and the transmission connecting piece is provided with a second end face opposite to the first end face; one of the first end surface and the second end surface is provided with a first arc-shaped groove extending along the rotation direction of the transmission connecting piece, and the other end surface is provided with a first limiting lug engaged with the first arc-shaped groove; the electric component is in transmission connection with the transmission connecting piece so as to drive the switch component to be movably switched between the switch-on position and the switch-off position. The method is used for solving the problem that the circuit breaker can not be switched on and off reliably through manual operation under the condition that electric control fails.

Description

Switching-on and switching-off operating mechanism and circuit breaker

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a switching-on and switching-off operating mechanism and a circuit breaker.

Background

The circuit breaker can switch on, carry and break the current under normal or abnormal loop condition, and is used for protecting power supply lines, motors and the like. The situation that electric components such as a driving motor break down suddenly or break down is avoided in an actual use environment, so that the electric components such as the driving motor stop working or cannot work normally, a handle of the circuit breaker is always in a closing or opening state and cannot be closed or opened manually and reliably, potential safety hazards exist, and confusion can be caused to later-stage maintenance.

Disclosure of Invention

One of the main objects of the present invention is to provide an opening and closing operation mechanism, which is used to solve the problem that the circuit breaker cannot be opened and closed reliably by hand when the circuit breaker is in a power failure or the electric component fails.

In order to achieve the above object, the present invention provides an opening and closing operation mechanism, which is applied to a circuit breaker, and comprises:

the transmission connecting piece is used for being rotatably arranged in the shell of the circuit breaker;

the switch assembly comprises a handle part and a connecting shaft sleeve which are connected into a whole, the connecting shaft sleeve is coaxially connected with the transmission connecting piece, the connecting shaft sleeve is provided with a first end face opposite to the transmission connecting piece, and the transmission connecting piece is provided with a second end face opposite to the first end face; one of the first end surface and the second end surface is provided with a first arc-shaped groove extending along the rotation direction of the transmission connecting piece, and the other end surface is provided with a first limiting lug engaged with the first arc-shaped groove;

and the electric component is in transmission connection with the transmission connecting piece and is used for driving the switch component to be movably switched between the switching-on position and the switching-off position of the circuit breaker through the transmission connecting piece.

In one embodiment, the first arc-shaped groove is annularly arranged on the connecting shaft sleeve, and the first limit bump is arranged on the transmission connecting piece.

In an embodiment, two second limiting protrusions are arranged on the first end face of the connecting shaft sleeve at intervals, and the first arc-shaped groove is formed between the two second limiting protrusions.

In an embodiment, the switching-on/off operating mechanism further includes a plug-in structure and a position switch, the plug-in structure is plugged in the switch assembly, the plug-in structure is provided with a first stopper corresponding to the switching-on position and a second stopper corresponding to the switching-off position, the first stopper and the second stopper are arranged at an interval, the position switch is installed between the first stopper and the second stopper, and the position switch is configured to output a switching-on detection signal when touching the first stopper and output a switching-off detection signal when touching the second stopper.

In an embodiment, the first arc-shaped groove has a first central angle, a second arc-shaped groove having a second central angle is formed between the first stopper and the second stopper, a central axis of the second arc-shaped groove and a central axis of the first arc-shaped groove are located on the same straight line, and the first central angle is not smaller than the second central angle.

In an embodiment, the switching-on/off operation mechanism further includes a return spring, a first end of the return spring abuts against the insertion structure, and a second end of the return spring abuts against the transmission connecting piece, so as to drive the insertion structure to rotate after the first blocking piece and the second blocking piece contact the position switch.

In one embodiment, the transmission connecting piece comprises a connecting shaft, a connecting seat and connecting teeth, the connecting shaft penetrates through the connecting seat and is positioned on the same straight line with a central shaft of the connecting shaft sleeve and a central axis of the plug-in structure, one side of the connecting seat, which is far away from the switch assembly, is provided with the connecting teeth, the connecting teeth are in transmission connection with the electric assembly, the connecting teeth are arranged along at least 1/4 of the circumference of the connecting seat, a limiting groove is arranged between the connecting teeth and the connecting shaft, and the reset spring is arranged between the limiting groove and the plug-in structure.

In an embodiment, the inserting structure comprises an installation table and a clamping piece arranged on the top of the installation table, the installation table is inserted into the connecting seat through the connecting shaft, and the handle portion is provided with a slot which is matched with the clamping piece in a nested manner.

The invention also provides a circuit breaker, which is used for solving the problem that reliable switching on and switching off can not be realized manually under the condition of power failure or failure of an electric assembly.

In order to achieve the above purpose, the present invention provides a circuit breaker, which includes a housing and an opening and closing operation mechanism according to one of the purposes of the present invention, wherein the opening and closing operation mechanism is installed in the housing, and the transmission connection member is rotatably connected to the housing.

In an embodiment, a mounting position is arranged in the circuit breaker, a shaft seat which is matched with the rotating connecting piece in a connecting mode is arranged in the middle of the mounting position and corresponds to the mounting position, a guide groove is formed in the top of the circuit breaker and extends from the switching-on position to the switching-off position, and a handle portion of the switch assembly is arranged on the top of the circuit breaker in a peripheral mode through the guide groove.

Compared with the prior art, the invention has the following beneficial effects:

1. the circuit breaker is provided with an electric component, a transmission connecting piece and a switch component, wherein the transmission connecting piece is rotatably arranged in a shell of the circuit breaker, and the electric component is in transmission connection with the transmission connecting piece so as to drive the switch component to act through the transmission connecting piece, so that the structure is simplified and the assembly is convenient;

2. the connecting shaft sleeve is coaxially connected with the transmission connecting piece, a first end face of the connecting shaft sleeve is opposite to a second end face of the transmission connecting piece, one of the first end face and the second end face is provided with a first limiting convex block, the other end face is provided with a first arc-shaped groove, under an electric state, the electric assembly transmits moving force to the switch assembly through the transmission connecting piece, the switch assembly is driven to rotate through meshing transmission of the first arc-shaped groove and the first limiting convex block, and the switch assembly is further driven to switch between a switching-on position and a switching-off position so as to realize switching-on and switching-off; in a manual state, the switch assembly is pushed manually to realize switch-on and switch-off, and the transmission connecting piece is driven to rotate through the meshing transmission of the first arc-shaped groove and the first limiting bump, so that the reset is avoided, the situation that the switch-on and the switch-off are not in place due to the fact that reliable switch-on and switch-off cannot be realized manually when the electric assembly stops working or fails is avoided, the situation that the handle part of the circuit breaker is always in the switch-on position or the switch-off position in the electric fault state can be avoided, the confusion caused by the undefined switch-on and switch-off state in later maintenance is further avoided, and the safety performance and the stability of the switch-on and switch-off are effectively optimized;

3. the switch component can be driven to realize switching on and switching off by applying external force to the switch component; when no external force is applied to the switch assembly of the circuit breaker, the accessible electric assembly drives the transmission connecting piece works to drive the switch assembly is in the activity switching between the closing position and the opening position of the circuit breaker, and then realizes closing and opening, closes and opens the brake through electric assembly electric control or applies external force in order to realize closing and opening in the switch assembly through manual, can avoid appearing the problem that the reliable closing and opening of the brake can't be realized through manual when the electric assembly stops working, effectively optimizes security and stability, avoids appearing the potential safety hazard.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a partial schematic structural diagram of an embodiment of a circuit breaker according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

in the figure: 101. a drive motor; 102. a gear set; 200. a drive connection; 201. a first limit bump; 202. a connecting shaft; 203. a connecting seat; 2031. a second end face; 204. connecting teeth; 205. a limiting groove; 300. a switch assembly; 301. connecting the shaft sleeve; 3011. a first end face; 3012. a first arc-shaped slot; 3013. a second limit bump; 302. a handle portion; 3021. a slot; 400. a plug-in structure; 401. a mounting table; 402. a clamping piece; 403. a first stopper; 404. a second stopper; 405. a second arc-shaped slot; 501. a position switch; 502. a return spring; 600. a circuit breaker; 601. a housing; 602. an installation position; 603. a shaft seat; 604. and a guide groove.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship, the motion situation, etc. of each component in a certain posture, if the certain posture is changed, the directional indication is changed accordingly.

If in the present application the description referring to "first", "second", etc. is used for descriptive purposes only and not to be construed as indicating or implying any relative importance or to imply that the number of technical features indicated is implicitly. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. If the description of "a and/or B" is referred to in the present invention, it means that either scheme a or scheme B is included, or both scheme a and scheme B are included. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides an opening and closing operation mechanism and a breaker 600.

Referring to fig. 1 to 2, the switching on/off operation mechanism applied to a circuit breaker 600 includes an electric assembly, a transmission connector 200 and a switch assembly 300. Wherein:

the transmission connector 200 is used for being rotatably installed in a housing 601 of the circuit breaker 600; it can be understood that, in order to avoid affecting the rotation of the transmission connection member 200, a connection structure such as a shaft seat, a shaft sleeve, etc. may be disposed inside the casing 601 or inside the casing of the circuit breaker 600, corresponding to the position of the transmission connection member 200, so that the transmission connection member 200 is rotatably mounted in the casing of the circuit breaker 600.

The switch assembly 300 comprises a handle 302 and a connecting shaft sleeve 301 which are connected into a whole, the connecting shaft sleeve 301 is coaxially connected with the transmission connecting piece 200, the connecting shaft sleeve 301 is provided with a first end surface 3011 opposite to the transmission connecting piece 200, and the transmission connecting piece 200 is provided with a second end surface 2031 opposite to the first end surface 3011; one of the first end surface 3011 and the second end surface 2031 is provided with a first arc-shaped groove 3012 extending along the rotation direction of the transmission connecting piece 200, and the other end surface is provided with a first limit bump 201 engaged with the first arc-shaped groove 3012;

the electric component is in transmission connection with the transmission connecting piece 200 and is used for driving the switch component 300 to be movably switched between the switching-on position and the switching-off position of the circuit breaker 600 through the transmission connecting piece 200.

Set up electronic subassembly, transmission connecting piece 200 and switch module 300, transmission connecting piece 200 rotates and installs in the casing 601 of circuit breaker 600, and electronic subassembly is connected with transmission connecting piece 200 transmission to drive switch module 300 action through transmission connecting piece 200, simplify the structure, be convenient for assemble.

Optionally, the electric assembly includes a driving motor 101 and a gear set 102, the driving motor 101 and the gear set 102 are both installed in a housing 601 of the circuit breaker 600, the driving motor 101 is in transmission connection with the gear set 102, and the gear set 102 is in transmission connection with the transmission connecting member 200 to drive the transmission connecting member 200 to rotate. In an electric state, the driving motor 101 is started, and the driving motor 101 drives the transmission connecting member 200 to rotate through the gear set 102, so as to drive the switch assembly 300 to rotate. As an example, a transmission connection structure such as a connection tooth 204 can be disposed on the transmission connection member 200 in cooperation with the switching on position and the switching off position, the gear set 102 can adopt one driving gear or a plurality of driving gears in transmission connection with each other, and the connection tooth 204 is engaged with the driving gear closest to the transmission connection member 200.

It can be understood that the switch assembly 300 includes a connecting shaft sleeve 301 and a handle portion 302 connected together, the switching on/off operating mechanism is applied to the circuit breaker 600, the transmission connector 200 is rotatably installed in a housing 601 of the circuit breaker 600, optionally, the transmission connector 200 can be disposed at a corresponding installation position 602 on the top of the housing 601 of the circuit breaker 600, the connecting shaft sleeve 301 is coaxially connected with the transmission connector 200, the position of the switch assembly 300 corresponding to the transmission connector 200 is located at the installation position 602, the handle portion 302 can be partially or completely led out of the circuit breaker 600 through the installation position 602 to realize manual control of switching on/off, and the position of the rotation direction or location of the handle portion 302 externally located on the circuit breaker is used as an indication for displaying the switching on/off state of the circuit breaker 600.

The connecting shaft sleeve 301 has a first end face 3011 opposite to the transmission connecting piece 200, the transmission connecting piece 200 has a second end face 2031 opposite to the first end face 3011, it can be understood that the first end face 3011 and the second end face 2031 are respectively defined by end faces of two opposite ends of the connecting shaft sleeve 301 and the transmission connecting piece 200, one of the first end face 3011 and the second end face 2031 is provided with a first limit bump 201, the other is provided with a first arc-shaped groove 3012, the connecting shaft sleeve 301 is coaxially connected with the transmission connecting piece 200, and the first limit bump 201 is engaged with the first arc-shaped groove 3012 for transmission.

In an electric state, the electric component transmits a moving force to the switch component 300 through the transmission connecting piece 200, and drives the switch component 300 to rotate through the meshing transmission of the first arc-shaped groove 3012 and the first limiting bump 201, and further drives the switch component 300 to switch between a switching-on position and a switching-off and switching-on position so as to realize switching-on and switching-off; under manual state, realize closing a floodgate and separating brake through manual push switch subassembly 300, and through the meshing transmission of first arc 3012 and first spacing lug 201, drive transmission connecting piece 200 and rotate, avoid resetting, prevent to lead to closing because of can't reliably closing the separating brake through manual realization when electronic assembly stop work or trouble, the separating brake is not in place, and can avoid the condition that the handle portion of circuit breaker is in closing the floodgate position or separating brake position always under the electric fault state, and further avoid causing the confusion for later maintenance because of closing the separating brake state is undefined, effectively optimize security performance and closing the separating brake stability, avoid appearing the potential safety hazard.

One of the first end surface 3011 and the second end surface 2031 is provided with a first arc-shaped groove 3012 extending along the rotation direction of the transmission connecting piece 200, and the other end surface is provided with a first limit bump 201 engaged with the first arc-shaped groove 3012. It can be understood that the first arc-shaped slot 3012 is disposed to extend along the rotation direction of the transmission link 200, that is, the first arc-shaped slot 3012 is disposed on the first end face 3011 or the second end face 2031 corresponding to the rotation direction of the transmission link 200, and the radian of the first arc-shaped slot 3012 is matched with the rotation direction of the transmission link 200. The specific implementation process is as follows:

as an example, a first arc-shaped slot 3012 may be disposed on the first end surface 3011 of the connecting shaft sleeve 301, and a first limit protrusion 201 may be disposed on the second end surface 2031 of the transmission connecting member 200, where the first limit protrusion 201 is engaged with the first arc-shaped slot 3012. For reliably closing and opening the brake through manual operation, the switch assembly 300 itself can be separated from the electric assembly to move, and the moving part of the circuit breaker is prevented from being locked at an inappropriate position due to the electric assembly, optionally, the first arc-shaped groove 3012 has a first limiting end and a second limiting end which are opposite to each other, the length of the first limiting projection 201 is not greater than the arc length of the first arc-shaped groove 3012, that is, the first limiting projection 201 is engaged with the first arc-shaped groove 3012, but a gap can be left between the first limiting projection 201 and the first arc-shaped groove 3012 (or two end edges of the first limiting projection can not be in direct contact with the first limiting end and the second limiting end of the first arc-shaped groove 3012). When the switch is switched on, the first limiting bump is just connected with the first limiting end of the first arc-shaped groove 3012 by starting the electric assembly or manually pushing the switch assembly; certainly, when the switch needs to be switched on, the first limiting protruding block 201 abuts against the first limiting end of the first arc-shaped slot 3012, and the switch is switched on by mutual extrusion and rotation matching of the first limiting protruding block and the first arc-shaped slot 3012; when the brake is switched off, the first limiting bump is just connected with the second limiting end of the first arc-shaped groove 3012; of course, when the opening is needed, the first limiting protrusion 201 abuts against the second limiting end of the first arc-shaped groove 3012, and the opening is achieved by mutual extrusion and rotation fit of the first limiting protrusion and the second limiting end.

As another example, a first arc-shaped slot 3012 may be disposed on the second end surface 2031 of the transmission link 200, and a first limit protrusion 201 may be disposed on the first end surface 3011 of the connection sleeve 301, where the first limit protrusion 201 is engaged with the first arc-shaped slot 3012. The specific implementation is shown in the above example, and is not described herein again.

On the basis of the above example, according to practical use, it is not excluded to provide one or more first arc-shaped slots 3012 and correspondingly provide one or more first limit bumps 201, when there are multiple first arc-shaped slots 3012, optionally, multiple first arc-shaped slots 3012 are arranged around the periphery of the switch assembly 300 at intervals, and in the case of switching on and off, multiple first limit bumps 201 can be arranged at any position of the transmission connecting piece 200 corresponding to the position of the first arc-shaped slots 3012; and vice versa. In an assembled state, the first limiting protrusions 201 are inserted into the corresponding first arc-shaped slots 3012 one to one, and the first limiting protrusions 201 are engaged with the first arc-shaped slots 3012, so that the switch assembly 300 can be movably switched between the on position and the off position of the circuit breaker 600.

In an embodiment, in order to facilitate switching, the first arc-shaped slot 3012 is disposed around the connecting shaft sleeve 301, and the first limiting protrusion 201 is disposed on the transmission connecting member 200.

Optionally, a switching-on position and a switching-off position can be defined by the first arc-shaped slot 3012, and when switching on, the first limit bump is just connected to the first limit end of the first arc-shaped slot 3012; or, when the switch needs to be switched on, the first limiting bump 201 abuts against the first limiting end of the first arc-shaped slot 3012, and the first limiting bump and the first arc-shaped slot are mutually extruded and rotationally matched to realize the switch-on; when the brake is switched off, the first limiting bump is just connected with the second limiting end of the first arc-shaped groove 3012; or, when the opening is needed, the first limiting protrusion 201 abuts against the second limiting end of the first arc-shaped slot 3012, and the opening is realized by mutual extrusion and rotation matching of the first limiting protrusion and the second limiting end.

It should be noted that, in the present invention, the circuit breaker can be switched on and off through electric control or manually. External force is applied to the switch assembly in a manual mode and the like so as to drive the switch assembly to realize switching on and switching off; when external force such as manual does not exert in the switch module of circuit breaker, the drive of accessible electric assembly transmission connecting piece work is in order to drive the switch module is in the activity switches over between the closing position and the separating brake position of circuit breaker, and then realizes closing and separating brake, can't realize reliably closing and separating brake's problem through manual when avoiding appearing electric assembly stop work, effectively optimizes security and stability, avoids appearing the potential safety hazard.

It is understood that the first limit protrusion 201 may be disposed at any position on the periphery of the transmission connecting member 200 or the second end surface 2031 corresponding to the position of the first arc-shaped slot 3012.

In this application, as an example, there is one first arc-shaped slot 3012, and the first arc-shaped slot 3012 is annularly disposed on the first end surface 3011 of the connecting shaft sleeve 301, and one first limiting protrusion 201 is correspondingly disposed, and in an assembled condition, the first limiting protrusion 201 is engaged with the first arc-shaped slot 3012.

Optionally, the first arc-shaped slot 3012 may be recessed in the first end face 3011 of the connection shaft sleeve 301; a connecting structure may be attached to the first end surface 3011 of the connecting sleeve 301, and the first arc-shaped slot 3012 is formed on the connecting structure; of course, two or more limiting structures such as protrusions and stoppers may be disposed on the connecting shaft sleeve 301, such that the first arc-shaped slot 3012 is formed between any two adjacent limiting structures.

In an embodiment, for convenience of processing, the first end face 3011 of the connecting shaft sleeve 301 is provided with two second limiting protrusions 3013 at intervals, and the first arc-shaped slot 3012 is formed between the two second limiting protrusions 3013.

The two second limiting protrusions 3013 are disposed on the first end surface 3011 of the connecting shaft sleeve 301 at intervals, and it can be understood that the two second limiting protrusions 3013 may be disposed on the periphery of the first end surface 3011 at intervals corresponding to the rotation direction of the transmission connecting member 200. As an example, the two second limiting protrusions 3013 may be oppositely disposed on two sides of the connection sleeve 301 to form two arc-shaped slots on the first end surface 3011 of the connection sleeve 301. Optionally, the two second limiting protrusions may be the same or different, and two identical or different arc-shaped grooves may be formed between the two second limiting protrusions. In cooperation with the structure of the switch assembly 300, under the condition that the switching on and off is not limited, one or two of the two arc-shaped grooves may be defined as the first arc-shaped groove 3012, when both the two arc-shaped grooves can be used as the first arc-shaped groove 3012, the first limiting protrusion 201 is engaged with one of the first arc-shaped grooves 3012 in cooperation with the rotation direction of the transmission connecting member 200, of course, the two first limiting protrusions 201 may also be correspondingly disposed on the second end surface 2031, and the two first limiting protrusions 201 are engaged with the two corresponding first arc-shaped grooves 3012 one to one.

In an embodiment, the switching on/off operating mechanism further includes an inserting structure 400 and a position switch 501, the inserting structure 400 is inserted into the switch assembly 300, the inserting structure 400 is provided with a first stopper 403 corresponding to the switching on position and a second stopper 404 corresponding to the switching off position, the first stopper 403 and the second stopper 404 are arranged at intervals, the position switch 501 is installed between the first stopper 403 and the second stopper 404, and the position switch 501 is configured to output a switching on detection signal when touching the first stopper 403 and output a switching off detection signal when touching the second stopper 404.

The plug structure 400 is arranged, the plug structure 400 is plugged in the switch component 300 to rotate along with the switch component 300, optionally, the plug structure can be arranged to be plugged in the connecting shaft sleeve 301 or the handle portion 302 of the switch component 300, and the position switch 501 is arranged to detect the switching-on/off state of the switching-on/off operation mechanism so as to be used as a prompt.

Further, an indication module such as an indicator light can be arranged on the circuit breaker 600, the circuit breaker 600 is provided with a control module, the position switch 501 and the indication module are respectively connected with the control module, the position switch 501 outputs a closing detection signal when touching the first stopper 403, and the control module controls the indication module to display corresponding color or information according to the received closing detection signal to serve as a closing prompt; the position switch 501 outputs a brake-off detection signal when touching the second stopper 404, and the control module controls the indication module to display corresponding color or information according to the received brake-off detection signal, so as to serve as a brake-off prompt.

Optionally, according to actual use, the position switch 501 may be a roller type travel switch, when the first stopper 403 and the second stopper 404 touch the position switch 501, the position switch 501 may be shifted, and the position switch 501 may be a travel switch that can be automatically reset or needs to be reset by an external force, taking the case that the position switch 501 is touched by the first stopper 403, and according to the different adopted position switches 501, if the position switch 501 is a single-wheel travel switch, the position switch 501 will be automatically reset after being shifted by the first stopper 403; if the position switch 501 is a two-wheel travel switch, after being touched and shifted by the first stopper 403, the second stopper 404 needs to be shifted from another direction to reset.

In an embodiment, the first arc-shaped slot 3012 has a first central angle, a second arc-shaped slot 405 having a second central angle is formed between the first stopper 403 and the second stopper 404, a central axis of the second arc-shaped slot 405 and a central axis of the first arc-shaped slot 3012 are located on the same straight line, and the first central angle is not smaller than the second central angle.

A second arc-shaped groove 405 with a second central angle is formed between the first stopper 403 and the second stopper 404, the first stopper 403 and the second stopper 404 of the insertion structure 400 are arranged at an interval, the position switch 501 is arranged between the first stopper 403 and the second stopper 404, the first central angle is not smaller than the second central angle and is limited by the first stopper 403, the second stopper 404 and the position switch 501, the rotatable amplitude of the insertion structure 400 is not larger than the rotatable amplitude of the connecting shaft sleeve 301 of the switch assembly 300, the rotation of the switch assembly 300 drives the rotation of the insertion structure 400, so as to drive the first stopper 403 and the second stopper 404 to move, and a closing detection signal (or a separating detection signal) is output after the first stopper 403 (or the second stopper 404) touches the position switch 501, so that the situation that the position switch 501 cannot be triggered to output the closing detection signal (or the separating detection signal) when the switch assembly 300 rotates to the closing position (or the separating position) is avoided, so as to realize normal opening and closing stability and closing precision.

In an embodiment, the opening and closing operation mechanism further includes a return spring 502, a first end of the return spring 502 abuts against the insertion structure 400, and a second end of the return spring 502 abuts against the transmission connector 200, so as to drive the insertion structure 400 to rotate after the first stopper 403 and the second stopper 404 contact the position switch 501.

Through set up reset spring 502 between grafting structure 400 and transmission connecting piece 200, the elastic deformation through reset spring 502 drives grafting structure 400 and circles round, specifically, drives transmission connecting piece 200 through electric component and rotates or drives transmission connecting piece 200 through manual push switch subassembly 300 and rotate, and along with the rotation of transmission connecting piece 200, reset spring 502 is compressed or tensile gradually. The central angle of the first arc-shaped slot 3012 is not smaller than the second central angle of the second arc-shaped slot 405, so that the first stopper 403 can still rotate to a certain extent under the driving of the switch assembly 300 after touching the position switch 501 or the second stopper 404 can still rotate to a certain extent after touching the position switch 501 until the driving motor 101 stops rotating or stops pushing the switch assembly 300 manually, the return spring 502 generates a reset rotating force, the opposite plug assembly can be driven to rotate in the process that the return spring 502 gradually recovers to the original state, the opposite plug assembly is plugged in the switch assembly 300, and the transmission connecting member 200 can be driven to rotate in the process that the opposite plug assembly rotates. The problems that in the actual operation process, the opening and closing of the circuit breaker 600 are not in place and the stability is poor due to the fact that gears do not rotate in place or the fact that abrasion and engagement of an electric assembly, a transmission connecting piece and the like are not in place due to long-term use are avoided.

In an embodiment, the transmission connector 200 includes a connection shaft 202, a connection seat 203, and a connection tooth 204, the connection shaft 202 penetrates through the connection seat 203, and is located on the same straight line with the central axis of the connection shaft sleeve 301 and the central axis of the plug-in structure 400, one side of the connection seat 203 departing from the switch assembly 300 is provided with the connection tooth 204, the connection tooth 204 is in transmission connection with the electric assembly, the connection tooth 204 is arranged along at least 1/4 of the circumference of the connection seat 203, a limit groove 205 is arranged between the connection tooth 204 and the connection shaft 202, and the return spring 502 is accommodated between the limit groove 205 and the plug-in structure 400.

It is understood that the second end surface 2031 is formed at an end of the connecting seat 203 close to the connecting sleeve 301, and optionally, the connecting teeth 204 are disposed at a side of the connecting seat 203 away from the end of the connecting sleeve 301. The first arc-shaped slot 3012 is arranged corresponding to the rotation direction of the transmission connecting piece 200, the connecting teeth 204 are arranged corresponding to the first arc-shaped slot 3012, and the connecting teeth 204 are arranged along at least 1/4 of the circumference of the connecting base 203. The limit groove 205 is formed on the end face of the end, deviating from the connecting shaft sleeve 301, of the connecting seat 203, and the return spring 502 is accommodated between the limit groove 205 and the inserting structure 400, so that the situation that the position deviation occurs in the elastic deformation process of the return spring 502 to influence the actual switching-on and switching-off effect is avoided.

In an embodiment, to simplify the structure, the inserting structure 400 includes a mounting table 401, and a clip 402 disposed on the top of the mounting table 401, the mounting table 401 is inserted into the connecting seat 203 via the connecting shaft 202, and the handle portion 302 is provided with a slot 3021 in nesting fit with the clip 402.

The plug structure 400 is plugged into the handle portion 302 of the switch assembly 300 through the plug member 402, the plug structure 400 is driven to rotate by the handle portion of the switch assembly 300, and further the first stopper 403 and the second stopper 404 of the plug structure 400 are driven to rotate, and the first stopper 403 touches the position switch 501 to output a closing detection signal and the second stopper 404 touches the position switch 501 to output a breaking detection signal, so as to improve the sensitivity of detecting the closing and breaking states.

The invention further provides a circuit breaker 600, the circuit breaker 600 comprises a housing 601 and switching-on and switching-off operating mechanisms according to the above examples, the switching-on and switching-off operating mechanisms are all installed in the housing 601, and the transmission connecting piece 200 is rotatably connected with the housing 601.

The transmission connecting piece 200 of the switching-on/off operation mechanism is arranged in the shell 601 and is rotationally connected with the shell 601, and the switching-on/off operation mechanism is controlled by electrically controlling the transmission connecting piece 200 or manually controlling the switch assembly 300. The specific implementation of the switching on/off operation mechanism is as shown above, and is not described herein again.

In an embodiment, an installation position 602 is disposed in the circuit breaker 600, a shaft seat 603 connected and adapted to the rotary connector is disposed in the middle of the installation position 602, a guide groove 604 is disposed at the top of the circuit breaker 600 corresponding to the installation position 602, the guide groove 604 extends from the switching-on position to the switching-off position, and the handle portion 302 of the switch assembly 300 is disposed at the top of the circuit breaker 600 through the guide groove 604.

Specifically, the connecting shaft sleeve 301 of the switch assembly 300 is mounted on the shaft seat 603 through the mounting position 602, the connecting shaft 202 of the transmission connector 200 passes through the connecting shaft sleeve 301 and is rotatably connected to the shaft seat 603, and the switch assembly 300 is limited through the guide groove 604, so that the switch assembly 300 is prevented from being shifted in position during use and affecting actual operation. Optionally, a stopper may be disposed at a position of the housing 601 corresponding to the guide slot 604, so as to limit the handle portion 302 of the switch assembly 300, and shield the internal structure of the circuit breaker 600, so as to protect the internal structure of the circuit breaker 600, thereby making the whole body more beautiful.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides an operating device opens and shuts, is applied to the circuit breaker which characterized in that includes:

2. The opening and closing operation mechanism according to claim 1, wherein the first arc-shaped groove is annularly arranged on the connecting shaft sleeve, and the first limiting convex block is arranged on the transmission connecting piece.

3. The opening and closing operation mechanism according to claim 2, wherein the first end surface of the connecting shaft sleeve is provided with two second limiting protrusions at intervals, and the first arc-shaped groove is formed between the two second limiting protrusions.

4. The switching-on/off operation mechanism according to claim 1, further comprising a plug structure and a position switch, wherein the plug structure is plugged into the switch assembly, the plug structure is provided with a first stopper corresponding to the switching-on position and a second stopper corresponding to the switching-off position, the first stopper and the second stopper are arranged at an interval, the position switch is installed between the first stopper and the second stopper, and the position switch is configured to output a switching-on detection signal when touching the first stopper and output a switching-off detection signal when touching the second stopper.

5. The switching on/off operating mechanism according to claim 4, wherein the first arc-shaped groove has a first central angle, a second arc-shaped groove having a second central angle is formed between the first stopper and the second stopper, a central axis of the second arc-shaped groove is aligned with a central axis of the first arc-shaped groove, and the first central angle is not smaller than the second central angle.

6. The switching on/off operation mechanism according to claim 4, further comprising a return spring, wherein a first end of the return spring abuts against the insertion structure, and a second end of the return spring abuts against the transmission connecting member, so as to drive the insertion structure to rotate after the first blocking member and the second blocking member contact the position switch.

7. The switching on/off operating mechanism according to claim 6, wherein the transmission connecting member includes a connecting shaft, a connecting seat, and connecting teeth, the connecting shaft penetrates through the connecting seat and is located on the same straight line with the central axis of the connecting shaft sleeve and the central axis of the plug-in structure, the connecting teeth are disposed on one side of the connecting seat away from the switch component and are in transmission connection with the electric component, the connecting teeth are disposed along at least 1/4 of the circumference of the connecting seat, a limiting groove is disposed between the connecting teeth and the connecting shaft, and the return spring is received between the limiting groove and the plug-in structure.

8. The switching on/off operation mechanism according to claim 7, wherein the insertion structure comprises a mounting platform and a clamping member disposed on the top of the mounting platform, the mounting platform is inserted into the connecting base via the connecting shaft, and the handle portion is provided with a slot adapted to be nested with the clamping member.

9. A circuit breaker, comprising a housing and the opening and closing operating mechanism as claimed in any one of claims 1 to 8, wherein the opening and closing operating mechanism is installed in the housing, and the transmission connecting member is rotatably connected with the housing.

10. The circuit breaker according to claim 9, wherein a mounting position is provided in the circuit breaker, a shaft seat adapted to be connected to the rotating connector is provided in a middle portion of the mounting position, a guide groove is provided in a top portion of the circuit breaker corresponding to the mounting position, the guide groove extends from the closing position to the opening position, and a handle portion of the switch assembly is externally provided on the top portion of the circuit breaker via the guide groove.