阅读说明：本技术 开关电器的指示装置 (Indicating device for switch electric appliance ) 是由 吴越 徐永富 韦尚靖 甘新华 于 2020-07-07 设计创作，主要内容包括：一种开关电器的指示装置,其包括同轴设置的转子件和推杆件,转子件与复位件连接,在转子件上设有与指示窗口对应指示标识,推杆件与开关电器的主回路单元配合,在推杆件和/或转子件上分别设有驱动斜面,主回路单元合闸时带动推杆件靠近转子件移动,推杆件通过驱动斜面推动转子件克服复位件的作用以推杆件的轴线为中心转动,使转子件始终位于与推杆件垂直的平面内,开关电器不需要在推杆件的轴向为供转子件提供转动空间,能够有效减少开关电器在推杆件移动方向上的高度,不仅具有结构紧凑和体积小的特点,而且转子件与推杆件通过倾斜的驱动斜面配合,复位件作用在主回路单元上的阻力更小,能够减少指示装置对开关电器的不良影响。(An indicating device of a switching device comprises a rotor part and a push rod part which are coaxially arranged, wherein the rotor part is connected with a reset part, an indicating mark corresponding to an indicating window is arranged on the rotor part, the push rod part is matched with a main loop unit of the switching device, driving inclined planes are respectively arranged on the push rod part and/or the rotor part, the main loop unit drives the push rod part to move close to the rotor part when being switched on, the push rod part pushes the rotor part to rotate around the axis of the push rod part by overcoming the action of the reset part through the driving inclined planes, so that the rotor part is always positioned in a plane vertical to the push rod part, the switching device does not need to provide a rotating space for the rotor part in the axial direction of the push rod part, the height of the switching device in the moving direction of the push rod part can be effectively reduced, the indicating device has the characteristics of compact structure and small volume, and the rotor part is matched with, the resistance of the reset piece acting on the main loop unit is smaller, and the adverse effect of the indicating device on the switching device can be reduced.)

1. An indicating device of a switch electric appliance is characterized in that: including rotor spare (110) and push rod spare (210) of coaxial setting, rotor spare (110) are connected with piece (120) that resets, be equipped with on rotor spare (110) and correspond with instruction window (310) and indicate sign (111), push rod spare (210) cooperate with the main circuit unit of switching on and off electrical apparatus, be equipped with drive inclined plane (3) on push rod spare (210) and/or rotor spare (110) respectively, main circuit unit drives push rod spare (210) and moves near rotor spare (110) when closing a floodgate, push rod spare (210) pass through drive inclined plane (3) and promote rotor spare (110) and overcome the effect that resets and use the axis of push rod spare (210) as the center rotation.

2. The indicating device of switching apparatus according to claim 1, wherein: rotor spare (110) and push rod spare (210) are equipped with the sawtooth structure of constituteing in turn by a plurality of archs (1) and valley (2) respectively along respective circumference, be equipped with drive inclined plane (3) on rotor spare (110) and push rod spare (210) respective protruding (1), rotor spare (110) and push rod spare (210) respective valley (2) are used for dodging another person's arch (1) respectively, drive self valley (2) and aim at protruding (1) of push rod spare (210) when rotor spare (110) rotate, make protruding (1) of push rod spare (210) can insert in the valley (2) of rotor spare (110) and block rotor spare (110) counter direction rotation.

3. The indicating device of switching apparatus according to claim 1, wherein: at least one microswitch (220) is arranged around the rotor piece (110), the rotor piece (110) extends above the microswitch (220) to form a trigger arm (160), and the rotor piece (110) drives the trigger arm (160) to push the microswitch (220) when rotating.

4. The indicating device of switching apparatus according to claim 1, wherein: including epitheca (130) and inferior valve (230) that relative setting is connected, rotor spare (110) pivot installation in epitheca (130), epitheca (130) are equipped with instruct window (310) corresponding dodge window (132), push rod spare (210) slide to be set up in inferior valve (230), inferior valve (230) are equipped with through-hole (236) that correspond with the major loop unit to and be used for blockking push rod spare (210) pivoted guiding mechanism, push rod spare (210) pass through-hole (236) and the cooperation of major loop unit.

5. The indication device of switching device according to claim 4, wherein: a pivot (131) is arranged in the upper shell (130), one end of the pivot (131) is fixedly connected with the upper shell (130), a screw (150) used for fixing the gasket (140) is arranged at the other end of the pivot (131), and the middle parts of the reset piece (120) and the rotor piece (110) are respectively sleeved on the pivot (131) and then limited by the gasket (140).

6. The indication device of switching device according to claim 4, wherein: push rod spare (210) are including push plate portion (211) and push rod part (212) of being connected with push plate portion (211) one side, the opposite side of push plate portion (211) is connected with push rod spare (210) through pressure movable piece (240), push rod part (212) pass through-hole (236) of inferior valve (230) bottom surface, pressure movable piece (240) are the pressure spring, the one end of pressure movable piece (240) is spacing with gasket (140) in epitheca (130), the middle part of push rod spare (210) is equipped with spring groove (214) that are used for spacing pressure movable piece (240) other end, it is spacing to push plate portion (211) the bottom surface of propping at inferior valve (230) to press movable piece (240).

7. The indicating device of switching apparatus according to claim 2, wherein: the rotor piece is pivotally installed in the upper shell (130), the position, corresponding to the valley (2), of the side edge of the rotor piece (110) is sunken towards the center to form a limiting groove (112), the upper shell (130) is provided with a limiting shaft (134) inserted into the limiting groove (112) for limiting, and the distance from the limiting shaft (134) to the center of the rotor piece (110) is smaller than the distance from the bulge (1) of the rotor piece (110) to the center of the rotor piece (110).

8. The indicating device of switching apparatus according to claim 7, wherein: the reset piece (120) is a torsion spring, the reset piece (120) is sleeved on the pivot (131), one end of the reset piece (140) is abutted to the side face of the limiting shaft (134) for limiting, and the rotor piece (110) is provided with a fixing column (113) for limiting the other end of the reset piece (140).

9. The indication device of switching device according to claim 4, wherein: the guide mechanism is a guide groove (251) arranged on the side wall of the lower shell (230), the push rod piece (210) protrudes outwards to form a guide block (252) which is inserted into the guide groove (251) in a sliding fit mode, and the length of the guide groove (251) is parallel to the axial direction of the push rod piece (210).

10. The indicating device of switching apparatus according to claim 2, wherein: the rotor part (110) is installed in the upper shell (130), the micro switch (220) is installed on the outer side of the lower shell (230), two clamping plates (231) are arranged at two ends, corresponding to each micro switch (220), of the lower shell (230), two positioning columns (232) are arranged between the two clamping plates (231) of the lower shell (230), the length of each positioning column (232) is smaller than that of each clamping plate (231), one end, far away from the lower shell (230), of each two opposite clamping plates (231) protrudes inwards to form a limiting boss (234), a positioning hole (221) in limiting fit with each positioning column (232) is formed in the side face of the micro switch (220), and the side face, far away from the upper shell (130), of the micro switch (220) is limited by the limiting boss (234); be equipped with respectively on the lateral wall of epitheca (130) both sides and be used for dodging transverse groove (135) that trigger arm (160) were triggered, inferior valve (230) correspond the position with transverse groove (135) and are equipped with into ARC structure's baffle (235) respectively, baffle (235) insert in transverse groove (135) and with transverse groove (135) interval setting after inferior valve (230) and epitheca (130) assembly, trigger arm (160) pass between baffle (235) and transverse groove (135), stretch to epitheca (130) outside and micro-gap switch (220) top cooperation.

11. The indicating device of switching apparatus according to claim 1, wherein: two centrosymmetric driven arms (1a) are arranged on two sides of the rotor piece (110), upper yielding grooves (2a) are formed between two ends of each driven arm (1a) at intervals, the length direction of each driven arm (1a) is parallel to the axial direction of the push rod piece (210), the length of each driven arm (1a) is gradually increased or decreased along the circumferential direction of the push rod piece (210) to form an inclined driven inclined surface (3a), the driven arms (1a) and the upper yielding grooves (2a) respectively form a protrusion (1) and a valley (2) of the rotor piece (110), and the driven inclined surfaces (3a) form a driving inclined surface (3) of the rotor piece (110); push rod spare (210) are including push plate portion (211) and push rod portion (212) of being connected with push plate portion (211) one side, the opposite side of push plate portion (211) is equipped with two catch arms (1b) with two received movable arm (1a) one-to-one, the length direction of catch arm (1b) and the axial direction of push rod spare (210) are parallel, and the length of two catch arms (1b) increases gradually or reduces along the circumference of push rod spare (210) and forms and promote inclined plane (3b), it yields groove (2b) down to separate the formation between the both ends of two catch arms (1b), catch arm (1b) and yield groove (2b) constitute arch (1) and valley (2) of push rod spare (210) respectively down, it constitutes drive inclined plane (3) of push rod spare (210) to promote inclined plane (3 b).

12. The indicating device of switching apparatus according to claim 1, wherein: the switch electric appliance is a circuit breaker, the main loop unit comprises a moving contact, a fixed contact and a contact support (320) for fixing the moving contact, the push rod piece (210) is matched with the contact support (320), and when the circuit breaker is switched on, the contact support (320) drives the moving contact to be contacted with the fixed contact and simultaneously drives the push rod piece (210) to move towards the rotor piece (110); when the circuit breaker is opened, the contact support (320) drives the moving contact and the fixed contact to be separated, and simultaneously drives the push rod piece (210) to be far away from the rotor piece (110).

Technical Field

The invention relates to the field of low-voltage electric appliances, in particular to an indicating device of a switching electric appliance.

Background

A switching device such as a molded case circuit breaker and the like is one of important electrical components in the field of low-voltage electricity, and mainly has the functions of automatically cutting off current after the current exceeds a trip setting, and switching on again after a line fault is eliminated, wherein the current cutting-off mode generally comprises short circuit trip and overload trip. The switching-on and switching-off indication marks of the existing molded case circuit breaker are generally arranged on two sides of an operating handle, and when the operating handle controls the switching-on and switching-off of the molded case circuit breaker, the switching-on and switching-off state of the circuit breaker is displayed by driving the indication marks through the displacement of the operating handle.

However, if the handle of the circuit breaker is closed, the indication mark can be shielded, and particularly, the on-off state display of the reclosing type molded case circuit breaker cannot be realized through the scheme. Although the indicating device can be arranged at other positions in the circuit breaker, the existing indicating device not only occupies a large space, but also has low reliability.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the indicating device of the switching electric appliance, which has small volume and high reliability.

In order to achieve the purpose, the invention adopts the following technical scheme:

The utility model provides an indicating device of switch electrical apparatus, its rotor spare and push rod spare including coaxial setting, the rotor spare with reset and be connected, be equipped with on the rotor spare and correspond the instruction sign with the instruction window, push rod spare and switch electrical apparatus's main loop unit cooperation, be equipped with the drive inclined plane respectively on push rod spare and/or rotor spare, it is close to the rotor spare and removes to drive the push rod spare when main loop unit closes a floodgate, the push rod spare promotes the rotor spare through the drive inclined plane and overcomes the axis that resets and use the push rod spare and rotate as the center.

Preferably, the rotor member and the push rod member are respectively provided with a sawtooth structure consisting of a plurality of protrusions and valleys alternately along the respective circumferential directions, the respective protrusions of the rotor member and the push rod member are respectively provided with a driving inclined surface, the respective valleys of the rotor member and the push rod member are respectively used for avoiding the protrusion of the other one, the rotor member drives the respective valleys to align to the protrusions of the push rod member when rotating, so that the protrusions of the push rod member can be inserted into the valleys of the rotor member and block the rotor member from rotating in the opposite direction.

Preferably, at least one micro switch is arranged around the rotor piece, the rotor piece extends above the micro switch to form a trigger arm, and the rotor piece drives the trigger arm to push the micro switch when rotating.

Preferably, including relative epitheca and the inferior valve that sets up the connection, rotor spare pivot installation in the epitheca, the epitheca be equipped with instruct the window corresponding dodge the window, push rod spare slides and sets up in the inferior valve, the inferior valve is equipped with the through-hole that corresponds with the major loop unit to and be used for blockking push rod spare pivoted guiding mechanism, push rod spare passes through-hole and major loop unit cooperation.

Preferably, a pivot is arranged in the upper shell, one end of the pivot is fixedly connected with the upper shell, a screw used for fixing the gasket is arranged at the other end of the pivot, and the middles of the reset piece and the rotor piece are respectively sleeved on the pivot and then limited by the gasket.

Preferably, the push rod part includes push plate portion and the push rod portion of being connected with push plate portion one side, and the opposite side of push plate portion is connected with the push rod part through pressing the piece, and the push rod portion passes the through-hole of inferior valve bottom surface, presses the piece to be the pressure spring, and the one end of pressing the piece is spacing with the gasket in the epitheca, and the middle part of push rod part is equipped with the spring groove that is used for spacing pressing the piece other end, and it is spacing to press the piece to promote the push plate portion to support the bottom surface at the.

Preferably, the rotor part is pivotally mounted in the upper shell, the position, corresponding to the valley, of the side edge of the rotor part is recessed towards the center to form a limiting groove, the upper shell is provided with a limiting shaft inserted into the limiting groove for limiting, and the distance from the limiting shaft to the center of the rotor part is smaller than the distance from the protrusion of the rotor part to the center of the rotor part.

Preferably, the piece that resets is the torsional spring, and the piece that resets overlaps on the pivot, and the one end that resets is supported and is spacing on the side of spacing axle, is equipped with the fixed column that is used for the spacing piece other end that resets on the rotor spare.

Preferably, the guide mechanism is a guide groove formed in the side wall of the lower shell, the push rod piece protrudes outward to form a guide block inserted into the guide groove in a sliding fit manner, and the length of the guide groove is parallel to the axial direction of the push rod piece.

Preferably, the rotor part is installed in the upper shell, the micro switches are installed on the outer side of the lower shell, the lower shell is provided with two clamping plates at two ends of each micro switch respectively, two positioning columns are arranged between the two clamping plates respectively, the length of each positioning column is smaller than that of each clamping plate, one end of each two opposite clamping plates far away from the lower shell protrudes inwards to form a limiting boss, a positioning hole in limiting fit with the positioning column is formed in the side face of each micro switch, and the side face of each micro switch far away from the upper shell is limited by the limiting boss; be equipped with the cross slot that is used for dodging trigger arm on the lateral wall of epitheca both sides respectively, the inferior valve corresponds the position with the cross slot and is equipped with into ARC structure's baffle respectively, and the baffle inserts the cross slot in and sets up with the cross slot interval after inferior valve and epitheca assembly, trigger arm passes from between baffle and the cross slot, stretches the epitheca outside and micro-gap switch top cooperation.

Preferably, two centrosymmetric driven arms are arranged on two sides of the rotor part, upper abdicating grooves are respectively formed between two ends of the two driven arms at intervals, the length direction of the driven arms is parallel to the axial direction of the push rod part, the length of the driven arms is gradually increased or decreased along the circumferential direction of the push rod part to form inclined driven inclined planes, the driven arms and the upper abdicating grooves respectively form bulges and valleys of the rotor part, and the driven inclined planes form driving inclined planes of the rotor part; the push rod spare includes push plate portion and the push rod portion of being connected with push plate portion one side, the opposite side of push plate portion is equipped with two catch arms with two receive movable arm one-to-ones, the length direction of catch arm and the axial direction parallel of push rod spare, and the length of two catch arms increases gradually or reduces along the circumference of push rod spare and forms and promote the inclined plane, the groove of stepping down is formed at the interval respectively between the both ends of two catch arms, the catch arm with step down the groove and constitute the arch and the valley of push rod spare respectively, promote the inclined plane and constitute the drive inclined plane of push rod spare.

Preferably, the switching device is a circuit breaker, the main loop unit comprises a moving contact, a fixed contact and a contact support for fixing the moving contact, the push rod piece is matched with the contact support, and when the circuit breaker is switched on, the contact support drives the moving contact to be contacted with the fixed contact and drives the push rod piece to move towards the rotor piece; when the breaker is opened, the contact support drives the moving contact and the fixed contact to be separated, and simultaneously drives the push rod piece to be far away from the rotor piece.

According to the indicating device of the switching electric appliance, when the rotor member rotates by taking the axis of the push rod member as a center, the rotor member is always positioned in a plane vertical to the push rod member, the switching electric appliance does not need to provide a rotating space for the rotor member in the axial direction of the push rod member, the height of the switching electric appliance in the moving direction of the push rod member can be effectively reduced, the indicating device has the advantages of being compact in structure and small in size, the rotor member is matched with the push rod member through the inclined driving inclined surface, the resistance of the reset member acting on the main loop unit is smaller, and the adverse effect of the indicating device on the switching electric appliance can be reduced.

In addition, the indicating device is assembled into an integral module and then is installed in the switching device, so that the use is convenient and reliable; and the electric signal micro switch for transmitting the opening and closing signals is also assembled, so that the opening and closing can be indicated on site and the opening and closing electric signals can be transmitted simultaneously, and the opening and closing indication function can be met without much improvement on the existing switching device.

Drawings

Fig. 1 is a schematic structural diagram of a switching device according to an embodiment of the present invention;

FIG. 2 is an indicating device of the switching device in the open state according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view of the inventive embodiment of FIG. 2;

Fig. 4 is an indicating device in a closing state of a switching apparatus according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of the inventive embodiment of fig. 4;

FIG. 6 is a schematic view of the assembly of the rotor mechanism and the push rod mechanism according to the embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a rotor mechanism according to an embodiment of the present invention;

FIG. 8 is an exploded view of a rotor mechanism according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a push rod mechanism according to an embodiment of the present invention;

fig. 10 is an exploded view of a pusher mechanism according to an embodiment of the invention.

Detailed Description

The following description will further describe a specific embodiment of the indicating device of the switching device according to the present invention with reference to the embodiments shown in fig. 1 to 10. The indicating device of the switching device created by the present invention is not limited to the description of the following embodiments.

As shown in fig. 1 to 5, the indicating device of the switching device of the present invention comprises a rotor member 110 and a push rod member 210 coaxially disposed, and a reset member 120 connected to the rotor member 110, the rotor element 110 is provided with an indicating mark 111 corresponding to the indicating window 310, the push rod element 210 is matched with a main circuit unit of the switching device, the push rod element 210 and/or the rotor element 110 are provided with a driving inclined plane 3, the driving inclined plane 3 is obliquely arranged with the moving direction of the push rod element 210, the main circuit unit drives the push rod element 210 to move close to the rotor element 110 when being switched on, the push rod element 210 pushes the rotor element 110 through the driving inclined plane 3 to rotate by taking the axis of the push rod element 210 as the center against the action of the resetting element 120, the rotor element 110 drives the indicating mark 111 corresponding to switching on to move to the indicating window 310 when rotating, when the main circuit unit is switched off, the reset element 120 drives the rotor element 110 to reset, and the indicator 111 corresponding to "open" moves to the indicator window 310.

According to the indicating device of the switching electric appliance, when the rotor element 110 rotates by taking the axis of the push rod element 210 as a center, the rotor element 110 is always positioned in a plane vertical to the push rod element 210, the switching electric appliance does not need to provide a rotating space for the rotor element 110 in the axial direction of the push rod element 210, the height of the switching electric appliance in the moving direction of the push rod element 210 can be effectively reduced, the indicating device has the advantages of being compact in structure and small in size, the rotor element 110 is matched with the push rod element 210 through the inclined driving inclined plane 3, the resistance of the reset element 120 acting on a main loop unit is smaller, and the adverse effect of the indicating device on the switching electric appliance can be reduced.

Further, at least one micro switch 220 is arranged around the rotor 110, the rotor 110 extends along a radial direction to form a trigger arm 160 for triggering the micro switch 220, the rotor 110 drives the trigger arm 160 to swing above the micro switch 220 when rotating, and the micro switch 220 is driven to be opened and closed by the trigger arm 160.

As shown in fig. 1, the switching device of this embodiment is a circuit breaker, the circuit breaker includes a housing 300 having an indication window 310, and a main circuit unit and the indication device that are disposed in the housing 300, the main circuit unit includes a moving contact and a stationary contact that are respectively connected to a circuit, and a contact support 320 for fixing the moving contact, the contact support 320 drives the moving contact to close when contacting the stationary contact, and opens when the moving contact is separated from the stationary contact, and the push rod 210 of this embodiment cooperates with the contact support 320.

When the circuit breaker is switched on, the contact support 320 drives the moving contact to contact with the fixed contact, and meanwhile, the contact support 320 can drive the push rod piece 210 to push the rotor piece 110 to rotate, so that the part, corresponding to the 'switching on', of the indication mark 111 on the rotor piece 110 is turned into the indication window 310;

when the breaker is opened, the contact support 320 drives the moving contact to be separated from the fixed contact, the contact support 320 resets, the rotor element 110 rotates under the action of the reset element 120, and the part of the indication mark 111 on the rotor element 110 corresponding to the 'opening' is rotated into the indication window 310;

it is understood that the push rod member 210 may also cooperate with other mechanisms of the movable contact or the main circuit unit, and the push rod member 210 may also function as a pull rod, and the contact support 320 drives the pull rod away from the rotor member 110 during opening. The indication mark 111 can distinguish "switching on" and "switching off" by means of characters, colors, patterns and the like, and belongs to the protection scope of the invention.

Referring to fig. 6, the indicating device of the switching device of the present embodiment includes a rotor mechanism 100 having a rotor element 110, and a push rod mechanism 200 having a push rod element 210, wherein the rotor mechanism 100 is fastened to the push rod mechanism 200 and fixed after the rotor mechanism 100 and the push rod mechanism 200 are assembled into a whole.

Referring to fig. 7 to 8, the rotor mechanism 100 includes an upper housing 130, and a pivot 131, a rotor member 110, and a reset member 120 respectively disposed in the upper housing 130, wherein one end of the pivot 131 is fixedly connected to the upper housing 130, the other end of the pivot 131 is provided with a screw 150 for fixing a gasket 140, the reset member 120 and the rotor member 110 are limited by the gasket 140 to rotate on the pivot 131, the driving inclined surface 3 of the rotor member 110 is disposed around the reset member 120, the upper housing 130 is provided with a bypass window 132 corresponding to the indication window 310, and the bypass window 132 exposes the indication mark 111 on the rotor member 110, so that the indication window 310 on the circuit breaker housing 300 can directly see the indication mark 111 on the rotor member 110 in the upper housing 130.

Referring to fig. 9 to 10, the pusher mechanism 200 includes a lower housing 230 disposed opposite to the upper housing 130, and a pusher member 210, a pressing member 240 and a guide mechanism respectively disposed in the lower housing 230,

the guide mechanism limits the push rod member 210 along the circumferential direction, the push rod member 210 is prevented from rotating, so that the push rod member 210 moves along the axial direction of the guide mechanism, the pressing member 240 is a pressure spring, one end of the pressing member 240 is sleeved in the screw 150 and then abuts against the gasket 140, the middle part of the push rod member 210 is provided with a spring groove 214 for limiting the other end of the pressing member 240, the pressing member 240 pushes the push rod member 210 towards the main circuit unit, so that the push rod member 210 is limited by the lower shell 230, and the driving inclined plane 3 of the push rod member 210 is arranged around the pressing member 240. The driving inclined plane 3 of the rotor element 110 is arranged around the reset element 120, and the driving inclined plane 3 of the push rod element 210 is arranged around the pressing element 240, so that spaces can be reserved for the reset element 120 and the pressing element 240 respectively, and the rotor element has the characteristics of compact structure and small volume.

After the rotor mechanism 100 and the push rod mechanism 200 are assembled respectively, the clamping groove 133 of the upper shell 130 is fixed with the clamping buckle 233 of the lower shell 230, so that the rotor mechanism 100 and the push rod mechanism 200 are assembled into a whole and then are assembled into the breaker shell 300 together, and the assembly is convenient. Of course, the pusher member 210 and the rotor member 110 may also be directly mounted within the circuit breaker housing 300. In addition, the pressing member 240 presses the push rod member 210 in the lower case 230, which not only ensures the reliable position limitation of the push rod member 210, but also pushes the push rod member 210 towards the main circuit unit, and accelerates the reset of the push rod member 210. Of course, the pressing member 240 may not be provided, and the rotator 110 may also push the push rod member 210 to be limited and reset by the driving inclined surface 3 under the driving of the resetting member 120, which all belong to the protection scope of the present invention.

Referring to fig. 8 and 10, the rotor 110 and the plunger 210 of the present embodiment are respectively cylindrical, the rotor 110 and the plunger 210 are respectively provided with a sawtooth structure formed by a plurality of protrusions 1 and valleys 2 along the respective circumferential directions, the protrusions 1 of the rotor 110 and the plunger 210 are respectively provided with a driving inclined surface 3, the valleys 2 of the rotor 110 and the plunger 210 are respectively used for avoiding the protrusions 1 of the other, and the rotor 110 drives the valleys 2 to align with the protrusions 1 of the plunger 210 when rotating, so that the protrusions 1 of the plunger 210 can be inserted into the valleys 2 of the rotor 110 and block the rotor 110 from rotating in the opposite direction.

Specifically, two centrosymmetric driven arms 1a are arranged on two sides of the rotor 110, upper yielding grooves 2a are respectively formed between two ends of the two driven arms 1a at intervals, the length direction of the driven arms 1a is parallel to the axial direction of the push rod member 210, the length of the driven arms 1a gradually increases or decreases along the circumferential direction of the push rod member 210 to form inclined driven inclined planes 3a, the driven arms 1a and the upper yielding grooves 2a respectively form protrusions 1 and valleys 2 of the rotor 110, and the driven inclined planes 3a form a driving inclined plane 3 of the rotor 110;

the push rod piece 210 comprises a push plate part 211 and a push rod part 212 connected with one side of the push plate part 211, the middle part of the other side of the push plate part 211 is connected with the push rod piece 210 through a pressing part 240, the push plate part 211 is provided with two push arms 1b which are in one-to-one correspondence with the two driven arms 1a, the length direction of the push arms 1b is parallel to the axial direction of the push rod piece 210, the lengths of the two push arms 1b are gradually increased or reduced along the circumferential direction of the push rod piece 210 to form push inclined planes 3b, lower abdicating grooves 2b are respectively formed between the two ends of the two push arms 1b at intervals, the push arms 1b and the lower abdicating grooves 2b respectively form a protrusion 1 and a valley 2 of the push rod piece 210, and the push inclined planes 3b form a driving inclined;

The pressing member 240 is a compression spring, one end of the pressing member 240 is limited by the gasket 140 in the upper shell 130, the middle part of the push rod member 210 is provided with a spring groove 214 for limiting the other end of the pressing member 240, the pressing member 240 pushes the push plate portion 211 to be limited against the bottom surface of the lower shell 230, and the driving inclined surface 3 of the push rod member 210 is arranged around the push plate portion 211.

The rotor member 110 and the push rod member 210 of the present embodiment have two pushing arms 1b and two driven arms 1a, and at least two pushing arms are centrosymmetric, so that the uniform force on both sides can be ensured, the balance can be maintained, the skew and the clamping stagnation can be prevented, and the service life can be prolonged. It is understood that rotation can be achieved by providing only one of the driven slope 3a and the push slope 3 b. In addition, the number of the pushing arms 1b and the number of the driven arms 1a may be one, and the rotor member 110 may be pushed to rotate, or the number of the pushing arms 1b and the number of the driven arms 1a may be three or more, and the three or more are uniformly distributed in the circumferential direction, and balance may be improved as well.

The upper and lower abdicating grooves 2a and 2b of the present embodiment are both U-shaped. Of course, the upper and lower slots 2a and 2b may be in other shapes, but at least one side wall can block the rotor 110 from rotating back, so as to ensure that the corresponding indication mark 111 is located in the indication window 310.

Fig. 3 shows the position after the circuit breaker is opened, fig. 5 shows the position after the circuit breaker is closed, and the movement of the rotor member 110 and the push rod member 210 is as follows:

the process that the rotor 110 moves from fig. 3 to fig. 5 corresponds to the closing process of the circuit breaker, in the process, the contact support 320 overcomes the action of the pressing part 240 to drive the push rod part 210 to approach the rotor 110, in the process that the push rod part 210 moves to approach the rotor 110, the push inclined plane 3b of the push rod part 210 pushes the driven inclined plane 3a at the end of the driven arm 1a to rotate towards the lower abdicating groove 2b at one side, when the push rod part rotates to the position shown in fig. 5, the end of the driven arm 1a is inserted into the lower abdicating groove 2b, the side of the driven arm 1a is limited by the lower abdicating groove 2b, and the 'closed' word representing the opening is located in the indication window 310;

the process of the rotor element 110 moving from fig. 5 to fig. 3 corresponds to the opening process of the circuit breaker, in the process, the contact holders 320 are reset, the push rod element 210 is close to the contact holders 320 and far away from the rotor element 110 under the action of the pressing element 240, so that the lower abdicating groove 2b is far away from the driven arm 1a, after the side edge of the driven arm 1a loses the position limitation of the lower abdicating groove 2b, the rotor element 110 is reset to the position of fig. 3 under the action of the reset element 120, and the 'division' word representing the opening is located in the indication window 310.

Referring to fig. 7-8, the rotor 110 is provided with a limiting groove 112 recessed toward the center of a circle on a side surface corresponding to a position between two ends of two driven arms 1a, the side edge of the rotor 110 is recessed toward the center corresponding to the valley 2 to form the limiting groove 112, the upper shell 130 is provided with a limiting shaft 134 inserted into the limiting groove 112 to limit on one side corresponding to the pivot 131, a distance from the limiting shaft 134 to the center of the rotor 110 is smaller than a distance from the protrusion 1 of the rotor 110 to the center of the rotor 110, and the limiting shaft 134 is used for blocking two side walls of the limiting groove 112 opposite to each other in the circumferential direction when the rotor 110 rotates. When the pivot hole 1100 of the rotor 110 is sleeved on the pivot 131, the limiting groove 112 is sleeved on the corresponding limiting shaft 134, and the limiting groove 112 can effectively utilize the space near the valley 2 on the sawtooth structure, so that the rotor 110 drives the two opposite side walls of the limiting groove 112 to respectively approach or separate from the limiting shaft 134 when rotating, and the two opposite side walls of the limiting groove 112 are blocked by the limiting shaft 134 to limit the rotating angle of the rotor 110.

Further, the rotor element 110 is provided with a fixing post 113 corresponding to the inner side of one of the movable arms 1a, one end of the reset element 120 abuts against the side surface of the fixing post 113, and the other end of the reset element 120 abuts against the side surface of the limiting shaft 134 in the upper housing 130. The limiting column can limit the rotation angle of the rotor element 110 and can also play a role in fixing the reset element 120. Of course, the rotor element 110 may also limit the end of the reset element 120 by using other structures instead of the fixing column 113, for example, the reset element 120 may also directly abut against the side surface of the driven arm 1a, or a groove for connecting the reset element 120 is provided on the side surface of the driven arm 1a, which all belong to the protection scope of the present invention.

Referring to fig. 9 to 10, the guide means is a guide groove 251 formed on a side wall of the lower case 230, a side surface of the push arm 1b of the push rod member 210 extends outward to form a guide block 252 slidably fitted into the guide groove 251, the length of the guide groove 251 is arranged in parallel with the axial direction of the push rod member 210, and the guide block 252 is slidably fitted into the guide groove 251 to prevent the push rod member 210 from rotating and guide the movement of the push rod member 210. Of course, the guide block 252 may be disposed at other positions of the pusher member 210, and the positions of the guide groove 251 and the guide block 252 may be reversed, all of which fall within the scope of the present invention.

Further, including the micro-switches 220 that are relatively disposed on both sides of the lower shell 230, the outer side surfaces of two driven arms 1a of the rotor member 110 respectively extend along the radial direction to form the trigger arms 160 of the fan-shaped structure, the corresponding micro-switches 220 are pressed to be opened and closed by the trigger arms 160, two clamping plates 231 are respectively disposed at two ends of each micro-switch 220 corresponding to the lower shell 230, two positioning posts 232 are respectively disposed between the two clamping plates 231 corresponding to the lower shell 230, the length of the positioning posts 232 is smaller than that of the clamping plates 231, a limiting boss 234 is respectively formed by inwardly protruding one end of each of the two opposite clamping plates 231 far away from the lower shell 230, a positioning hole 221 that is in limiting fit with the positioning posts 232 is disposed on the side surface of the micro-switches 220, and the side surface of the micro-. The micro switch 220 can simultaneously realize on-site indication switching on and off and transmission switching on and off electric signals, and can meet the switching on and off indication function without much improvement on the existing switching device.

The number of the micro switches 220 in this embodiment is two, which corresponds to the number of the driven arms 1a, wherein one micro switch 220 can be used for providing an electrical signal for opening and closing, so as to prompt the working state of the circuit breaker on site or remotely, and the other micro switch 220 can be connected with an alarm unit, or can be connected with other devices in a standby mode. In addition, the two microswitches 220 of the present embodiment are symmetrically arranged in the left-right direction, the two trigger arms 160 can only close one of the microswitches 220 at the same time, the two microswitches 220 can also be arranged in the central symmetry, and the two trigger arms 160 can close the two microswitches 220 at the same time. In addition, only one or more than three micro switches 220 may be provided, and the number of the trigger arms 160 may be adjusted accordingly, or one trigger arm 160 may cooperate with a plurality of micro switches 220, all falling within the scope of the present invention.

Further, lateral walls on two sides of the upper shell 130 are respectively provided with a transverse groove 135 for avoiding the trigger arm 160, the lower shell 230 and the transverse groove 135 are respectively provided with a baffle 235 in an arc structure at a position corresponding to the transverse groove 135, the baffle 235 is inserted into the transverse groove 135 and is arranged at an interval with the transverse groove 135 after the lower shell 230 and the upper shell 130 are assembled, and the trigger arm 160 passes through the baffle 235 and the transverse groove 135 and extends to the upper side of the corresponding micro switch 220 to be matched. When the trigger arm 160 rotates, the two sides of the trigger arm are respectively in sliding fit with the baffle 235 and the transverse groove 135, so that the rotor member 220 can be prevented from being inclined by the reaction force of the micro switch 220. Of course, the baffle 235 may also function only to shield the internal mechanism without a sliding fit. In addition, the trigger arm 160 is blocked by two opposite side walls of the transverse slot 135, which can also replace the limiting shaft 134, and play a role in limiting the rotation angle of the rotor 110.

The assembly process of the rotor mechanism 100 is as follows:

the rotor element 110 and the reset element 120 of the torsion spring structure are sequentially sleeved around the pivot 131, one end of the gasket 140 is attached to the end surface of the pivot 131, the screw 150 passes through the gasket 140 to be connected with the screw hole on the end surface of the pivot 131, the gasket 140 is fixed on the end surface of the pivot 131, the side surface of the gasket 140 close to the pivot 131 limits the rotor element 110 and the reset element 120 on the pivot 131, and the side surface of the other side of the gasket 140 is used for matching with the pressing element 240 of the push rod mechanism 200;

after the reset element 120 and the rotor element 110 are respectively sleeved on the pivot 131, the limit groove 112 on the rotor element 110 is sleeved on the corresponding limit shaft 134, one end of the reset element 120 is attached to the side surface of the limit shaft 134, and the other end is attached to the side surface of the fixed column 113, the reset element 120 pushes the rotor element 110 to enable the side wall of one side of the limit groove 112 to be abutted against the limit shaft 134 to keep balance, and the other side wall of the limit groove 112 opposite to the side is spaced from the limit shaft 134 to ensure that the rotor element 110 can rotate.

The assembly process of the push rod mechanism 200 is as follows:

the guide blocks 252 formed at the outer sides of the push arms 1b at both sides of the push rod member 210 are aligned with the guide grooves 251 of the guide mechanism, the push rod part 212 of the push rod member 210 is inserted through the through hole 236 of the bottom surface of the lower case 230 while the guide blocks 252 are inserted into the corresponding guide grooves 251 to prevent the push rod member 210 from rotating, the bottom of the push rod part 240 is inserted into the spring groove 214 at one side of the push plate part 211, and the two micro switches 220 are respectively fitted between the two pairs of clamping plates 231 at both sides of the lower case 230.

Finally, the spacer 140 of the rotor mechanism 100 is aligned with the top of the pressing member 240, the upper casing 140 is pressed down on the lower casing 230, the locking slots 133 on the two sides of the upper casing 140 are locked on the locking tabs 233 on the two sides of the lower casing 230, the spacer 140 of the rotor mechanism 100 is pressed on the top of the pressing member 240, and the pressing member 240 pushes the pushing plate portion 211 to abut against the bottom surface of the lower casing 230 corresponding to the periphery of the through hole 236 for limiting.

As shown in fig. 2-3, when the circuit breaker is in the closing position, no force acts on the contact support 320 of the circuit breaker on the push rod 210, the push rod 210 is in a free state, one end of the pressing member 240 acts on the gasket 140, the other end of the pressing member 240 acts on the push plate portion 212 of the push rod 210, the side surface of the push plate portion 211 away from the pressing member 240 is tightly attached to the bottom surface of the lower case 230, and at this time, the push rod portion 212 may contact with the contact support 320, or a certain gap may be left.

Meanwhile, the rotor member 110 stays at the free position shown in fig. 7 by the torsion spring 15 of the restoring member 120, and the push slope 3b of the push rod member 210 is closely attached to the driven slope 3a of the rotor member 110.

At this time, the indication mark 111 representing "close" on the rotor 110 is presented in the indication window 310 of the circuit breaker housing 300, indicating that the circuit breaker is in the close position.

As shown in fig. 4-5, when the circuit breaker is switched from a closing state to an opening state, the contact support 320 pushes the arc surface 215 at the bottom of the push rod 210, so that the push rod 210 tends to move linearly in an upward direction, when the acting force is sufficient to overcome the friction force between the reset member 120, the pressing member 240, the pushing inclined surface 3b and the driven inclined surface 3a, the push rod 210 moves upward and pushes the driven inclined surface 3a through the pushing inclined surface 3b, so that the rotor member 110 rotates clockwise, the driven arm 1a provided with the driven inclined surface 3a on the rotor member 110 is driven to be inserted into the lower abdicating groove 2b, until the circuit breaker is in the opening state, the contact support 320 stops moving, the driven arm 1a is stopped by the sidewall of the lower abdicating groove 2b, the rotor member 110 rotates to a position, and the reset member 120 cannot drive the rotor member 110 to reset. At this time, the indication mark 111 representing "open brake" on the rotor member 110 is presented in the indication window 310 of the circuit breaker housing 300, indicating that the circuit breaker is in the open brake position.

The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the inventive concept, and all should be considered as falling within the protection scope of the invention.