CN216624166U - Tripping force amplification mechanism and electric equipment - Google Patents

Abstract

The utility model provides a tripping force amplifying mechanism and electric equipment. The tripping force amplifying mechanism comprises a swinging connecting rod, the swinging connecting rod is provided with a first connecting arm, a second connecting arm and a power output arm, the first connecting arm is provided with a first channel, and the second connecting arm is provided with a second channel; at least one part of the indicating piece extends into the first channel and stops against the wall surface of the first channel or exits from the first channel; and at least one part of the elastic component extends into the second channel and can be abutted against at least one part of the second channel so as to provide rotating force for the swinging connecting rod after the swinging connecting rod is separated from the indicating piece, so that the power output arm swings. The tripping force amplifying mechanism and the electric equipment provided by the utility model can solve the problem of poor use effect of the tripping force amplifying mechanism in the prior art.

Description

Tripping force amplification mechanism and electric equipment

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a tripping force amplifying mechanism and electrical equipment.

Background

As a protection component in circuit equipment, the circuit breaker is widely applied to various electrical equipment, wherein a large amount of electronic residual current operated circuit breakers RCBO are used in China, and the electrical equipment and the life safety are protected at any time. When residual current causes personal electric shock, the mutual inductor transmits information to the PCBA after detecting a signal, the leakage coil is conducted, the coil is electrified, the push rod pushes the leakage mechanism to be tripped, the circuit breaker is enabled to trip and power off, and therefore personal protection is achieved. Because the tripping force of the circuit breaker is easily influenced by the environment and is unstable, the output force value of the leakage mechanism needs to be improved, so that the safety of the product is improved; the existing electric leakage mechanisms in the market are mainly of two types, one type has a simple structure, but has no amplification effect on the force of a release, and when the working condition is severe, the coil is easily burnt out, the circuit is not disconnected, and the function of the product is disabled; the other type can ensure the reliability of tripping but has a complex structure.

As can be seen from the above, the conventional tripping force amplifying mechanism has a problem of poor use effect.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a tripping force amplifying mechanism and electric equipment, and aims to solve the problem that the tripping force amplifying mechanism in the prior art is poor in using effect.

In order to achieve the above object, according to one aspect of the present invention, a tripping-force amplifying mechanism is provided. The tripping force amplifying mechanism comprises a swinging connecting rod, the swinging connecting rod is provided with a first connecting arm, a second connecting arm and a power output arm, the first connecting arm is provided with a first channel, and the second connecting arm is provided with a second channel; at least one part of the indicating piece extends into the first channel and stops against the wall surface of the first channel or exits from the first channel; and at least one part of the elastic component extends into the second channel and can be abutted against at least one part of the second channel so as to provide rotating force for the swinging connecting rod after the swinging connecting rod is separated from the indicating piece, so that the power output arm swings.

The tripping force amplifying mechanism further comprises a shell, the indicating piece is movably connected with the shell and is provided with a pressing position and a popping position, the elastic component is always abutted against the indicating piece, the indicating piece is provided with a clamping part, when the indicating piece is positioned at the pressing position, the clamping part extends into the first channel and is abutted against the wall surface of the first channel, and the elastic component is abutted against the wall surface of the second channel; when the indicating piece is located the pop-up position, joint portion breaks away from with first passageway, and elastic component can be with the wall butt of second passageway.

Further, the first channel is provided with a first buckle face, the clamping portion is provided with a second buckle face, and when the indicating piece is located at the pressing-down position, the first buckle face is attached to the second buckle face.

Further, the first connecting arm comprises a first arm segment; the first arm section and the second arm section are oppositely and alternately arranged, and a first channel is formed between the first arm section and the second arm section; the first arm section is connected with the second arm section through the first connecting beam, the first connecting beam is provided with a first buckle face, and at least one part of the indicating piece extends into the first channel and is attached to the first buckle face.

Further, the second connecting arm comprises a third arm segment; the third arm section and the fourth arm section are oppositely and alternately arranged, and a second channel is formed between the third arm section and the fourth arm section; the second tie-beam, the third arm section passes through the second tie-beam and is connected with the fourth arm section, and the second tie-beam has the butt face, and at least part of elastic component stretches into in the second passageway and with the butt face butt.

Furthermore, the elastic assembly comprises a main spring, the main spring is provided with a first torsion arm and a second torsion arm, the first torsion arm is abutted with the shell, and the second torsion arm extends into the second channel and is abutted with the wall surface of the second channel; reset spring, reset spring have third torsion arm and fourth torsion arm, and the third torsion arm sets up on the swing connecting rod, and fourth torsion arm and indicator butt to when making the indicator by popping out the position and pushing down the position motion, rotate through reset spring drive swing connecting rod.

Furthermore, the indicator has a first abutting part and a second abutting part which are arranged at intervals, the second torsion arm abuts against the first abutting part, and the fourth torsion arm abuts against the second abutting part.

Furthermore, a rotary shaft is arranged at the rotating center of the swinging connecting rod in a protruding mode, the rotary shaft is rotatably connected with the shell, an installation portion is arranged on the rotary shaft, a return spring is installed on the rotary shaft, and at least one part of the third torsion arm is installed inside the installation portion.

Furthermore, a rotating groove is formed in the rotating center of the swinging connecting rod and on the side, facing back to the rotating shaft, of the rotating connecting rod, the rotating groove and the rotating shaft are coaxially arranged, an extending shaft is arranged on the shell, and at least one part of the extending shaft extends into the rotating groove.

Further, the tripping force amplifying mechanism further comprises a tripper, the tripper is installed inside the shell, the swinging connecting rod is further provided with a driving arm, and the tripper is used for driving the driving arm to move so as to enable the swinging connecting rod to rotate and enable the indicating piece to be separated from the first channel.

Furthermore, the shell is provided with a guide rib and a limiting block, when the indicating piece is switched between the pressing position and the popping position, at least one part of the second connecting arm slides along the surface of the guide rib, and the limiting block is used for stopping the movement of the second connecting arm.

Furthermore, the swing connecting rod is also provided with a driving arm, and the first connecting arm, the power output arm, the driving arm and the second connecting arm are sequentially arranged at intervals in the rotation direction of the swing connecting rod.

According to one aspect of the present invention, there is provided an electric device including the above-described tripping-force amplifying mechanism.

Furthermore, the electric equipment is a leakage circuit breaker which comprises an air switch, and a power output arm of the tripping force amplifying mechanism is in driving connection with the air switch.

By applying the technical scheme of the utility model, at least one part of the indicating piece extends into the first channel and is stopped by the wall surface of the first channel so as to realize that the swinging connecting rod locks the indicating piece to limit the indicating piece at a pressing position; meanwhile, the elastic assembly extending into the second channel drives the indicating piece to move towards the popping position, so that the position of the output arm can be known by manually observing the position of the indicating piece.

Through the arrangement of the first channel and the second channel, at least one part of the indicating piece extends into the first channel, so that the contact area between the indicating piece and the first connecting arm is increased, the stability of the stop between the indicating piece and the swing connecting rod is improved, and the reliability of the tripping force amplifying mechanism is enhanced; meanwhile, at least one part of the elastic component extends into the second channel to drive the second connecting arm, so that when the swinging connecting rod and the indicating piece are avoided, the swinging connecting rod has a larger rotating angle under the driving of the elastic component, and the amplification effect of the tripping force amplification mechanism is further improved; the scheme has the advantages of simple overall structure and low cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows a schematic structural view of a trip force amplification mechanism of the present invention, wherein an indicator is stopped by a swing link; and

FIG. 2 is a schematic structural view of the trip force amplifying mechanism of the present invention, wherein the indicator is released from the swing link;

FIG. 3 shows a schematic structural view of the housing of the present invention;

FIG. 4 shows a schematic perspective view of an indicator of the present invention;

FIG. 5 shows a schematic perspective view of the swing link of the present invention;

FIG. 6 shows another perspective view of the swing link of the present invention;

fig. 7 shows a schematic perspective view of the earth leakage breaker of the present invention.

Wherein the figures include the following reference numerals:

100. a housing; 101. a main spring stop; 102. a main spring rotating shaft; 103. an extension shaft; 104. a guide rib; 105. a limiting block; 106. a via hole; 107. a limiting bulge; 200. an indicator; 201. a clamping part; 2011. a second buckle surface; 202. a first abutting portion; 203. a second abutting portion; 300. a swing link; 301. a first connecting arm; 3011. a first channel; 3012. a first connecting beam; 30121. a first buckle face; 302. a second connecting arm; 3021. a second channel; 3022. a second connecting beam; 303. a power take-off arm; 304. a drive arm; 305. a rotating shaft; 3051. an installation part; 306. a rotating tank; 400. a main spring; 401. a first torsion arm; 402. a second torsion arm; 500. a return spring; 501. a third torsion arm; 502. a fourth torque arm; 600. a release; 700. an air switch.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the utility model.

Example one

In order to solve the problem of poor use effect of the tripping force amplifying mechanism in the prior art, the utility model provides the tripping force amplifying mechanism which can be applied to the household field and the industrial field.

As shown in fig. 1 to 6, the trip force amplification mechanism includes a swing link 300, an indicator 200, and an elastic member, the swing link 300 having a first link arm 301, a second link arm 302, and a power output arm 303, the first link arm 301 having a first passage 3011, the second link arm 302 having a second passage 3021; at least a portion of the indicator 200 extends into the first channel 3011 and stops against a wall of the first channel 3011 or exits the first channel 3011; at least a portion of the elastic member extends into the second passage 3021 and can abut against at least a portion of the second passage 3021 to provide a rotational force to the swing link 300 to swing the power output arm 303 after the swing link 300 is disengaged from the indicator 200.

Specifically, at least one part of the indicator 200 extends into the first channel 3011 and stops against the wall surface of the first channel 3011, so that the swing link 300 locks the indicator 200 to limit the indicator 200 at a pressed position, after the swing link 300 is forced to swing, the indicator 200 exits from the first channel 3011, at this time, the elastic component extending into the second channel 3021 can drive the swing link 300 to rotate, and the output arm rotates along with the swing link 300 so that the output arm can drive the electric device to act; meanwhile, the elastic component extending into the second channel 3021 drives the indicator 200 to move towards the pop-up position, so that the position of the output arm can be known by manually observing the position of the indicator 200.

By arranging the first channel 3011 and the second channel 3021, at least a part of the indicator 200 extends into the first channel 3011, and the contact area between the indicator 200 and the first connecting arm 301 is increased, so that the stability of the stop between the indicator 200 and the swing connecting rod 300 is improved, and the reliability of the tripping force amplifying mechanism is enhanced; meanwhile, at least one part of the elastic component extends into the second channel 3021 to drive the second connecting arm 302, so that when the swing connecting rod 300 and the indicator 200 are avoided, the swing connecting rod 300 has a larger rotation angle under the driving of the elastic component, and the amplification effect of the tripping force amplification mechanism is further improved; the scheme has the advantages of simple overall structure and low cost.

Further, the indicator 200 is an indicator button, that is, the indicator 200 has a pressed position and an ejected position, and when the indicator 200 is driven by the elastic component to be in the ejected position, an external force can be manually applied to the indicator 200 to switch the indicator 200 from the ejected position to the pressed position, and when the indicator 200 is switched from the ejected position to the pressed position, another part of the elastic component drives the swing link 300 to perform a reset motion, so that when the indicator 200 is in the pressed position, at least one part of the indicator 200 can be stopped by the first channel 3011 of the swing link 300, thereby keeping the indicator 200 in the pressed position.

As shown in fig. 1 and 2, the tripping force amplifying mechanism further includes a housing 100, the indicator 200 is movably connected to the housing 100, the elastic component is always abutted against the indicator 200, the indicator 200 has a clamping portion 201, when the indicator 200 is located at a pressing position, the clamping portion 201 extends into the first channel 3011 and abuts against a wall surface of the first channel 3011, and the elastic component abuts against a wall surface of the second channel 3021; when the indicator 200 is located at the pop-up position, the snap-in portion 201 is separated from the first channel 3011, and the elastic component is abutted against the wall surface of the second channel 3021.

Specifically, the elastic member always abuts against the indicator 200 to provide a driving force for moving the indicator 200 toward the pop-up position, and when the indicator 200 is stopped by the first channel 3011, the indicator 200 is kept at the pressed-down position by the stopper of the swing link 300, and the elastic member abuts against the wall surface of the second channel 3021 to provide a rotating force for the swing link 300, and the swing link 300 is kept still due to the stopper of the snap portion 201 against the wall surface of the first channel 3011. When the clamping portion 201 is disengaged from the first channel 3011, the elastic component drives the swing link 300 to rotate, and drives the indicator 200 to move towards the pop-up position.

Further, the indicator 200 is movably connected to the housing 100 to switch the indicator 200 between the pop-up position and the push-down position, an opening structure is provided on the housing 100, and the indicator 200 is telescopically arranged at the opening structure. The opening structure of the housing 100 is further provided with a limiting protrusion 107, and the limiting protrusion 107 is used for stopping the limiting indicator 200 to prevent the indicator 200 from being separated from the housing 100.

In this embodiment, the first channel 3011 has a first buckle surface 30121, and the fastening portion 201 has a second buckle surface 2011, and when the indicator 200 is located at the pressing-down position, the first buckle surface 30121 and the second buckle surface 2011 are attached to each other, so as to achieve the mutual stopping and limiting between the indicator 200 and the swing link 300.

As shown in fig. 5 and 6, the first connecting arm 301 includes a first arm section, a second arm section and a first connecting beam 3012, the first arm section and the second arm section are disposed oppositely and at an interval, a first channel 3011 is formed between the first arm section and the second arm section, the first arm section is connected with the second arm section through the first connecting beam 3012, the first connecting beam 3012 has a first buckle face 30121, and at least a portion of the indicator 200 extends into the first channel 3011 to be attached to the first buckle face 30121.

Specifically, the first buckle face 30121 is disposed on the first connection beam 3012 to facilitate at least a portion of the indicator 200 extending into the first channel 3011 and attaching to the first buckle face 30121, and the first buckle face 30121 is disposed on the first connection beam 3012 to increase a contact area between the indicator 200 and the swing link 300, thereby improving stability of the tripping force amplification mechanism.

As shown in fig. 5 and 6, the second connecting arm 302 includes a third arm segment, a fourth arm segment and a second connecting beam 3022, the third arm segment and the fourth arm segment are oppositely and separately arranged, and a second channel 3021 is formed between the third arm segment and the fourth arm segment; the third arm section is connected to the fourth arm section via a second connecting beam 3022, the second connecting beam 3022 having an abutment surface, at least a portion of the resilient member extending into the second passage 3021 and abutting against the abutment surface.

Specifically, by providing the second passage 3021 such that at least a portion of the elastic member extends into the second passage 3021 and abuts against the abutting surface of the second connecting beam 3022, the elastic member rotates in the second passage 3021 during the rotation of the swing link 300 driven by the elastic member, which increases the rotation range.

Further, at least a portion of the elastic member can pass through the rotation center of the swing link 300.

In the present embodiment, the first passage 3011 and the second passage 3021 are provided in communication so that the rotation center area of the swing link 300 belongs to a part of the passage, i.e., a part of the elastic member extending into the second passage 3021 can rotate in the rotation center area.

Further, since the first link arm 301 and the second link arm 302 have the first channel 3011 and the second channel 3021, respectively, in order to strengthen the tripping force amplifying mechanism, the housing 100 is provided with the guide rib 104 and the stopper 105, at least a portion of the second link arm 302 slides along the surface of the guide rib 104 when the indicator 200 is switched between the pressed-down position and the ejected-out position, and the stopper 105 is used to stop the movement of the second link arm 302.

Wherein, the second connecting beam 3022 of the second connecting arm 302 moves along the surface of the guide rib 104 to improve the stability of the swing link 300 in rotation under the guiding support of the guide rib 104. The limiting block 105 is arranged to limit the second connecting arm 302, the limiting block 105 is arranged at the end of the guide rib 104, so that after the second connecting arm 302 moves to the end of the guide rib 104 along the guide rib 104, the limiting block 105 prevents the second connecting arm 302 from rotating.

As shown in fig. 1 and 2, the elastic assembly includes a main spring 400 and a return spring 500, the main spring 400 having a first torsion arm 401 and a second torsion arm 402, the first torsion arm 401 abutting against the housing 100, the second torsion arm 402 extending into the second passage 3021 and abutting against a wall surface of the second passage 3021; the return spring 500 includes a third torsion arm 501 and a fourth torsion arm 502, the third torsion arm 501 is connected to the swing link 300, and the fourth torsion arm 502 abuts against the indicator 200, so that when the indicator 200 moves from the pop-up position to the push-down position, the swing link 300 is driven to rotate by the return spring 500.

Specifically, the second torsion arm 402 of the main spring 400 abuts against the indicator 200 and the wall surface of the second passage 3021 to provide a force to move the indicator 200 toward the pop-up position and a force to rotate the swing link 300. When the indicator 200 moves from the pop-up position to the push-down position, the return spring 500 drives the swing link 300 to rotate, so that the swing link 300 is returned.

Further, the indicator 200 has a first abutting portion 202 and a second abutting portion 203 which are provided at an interval, the second torsion arm 402 abuts against the first abutting portion 202, and the fourth torsion arm 502 abuts against the second abutting portion 203. The second torsion arm 402 drives the indicator 200 to move, when the indicator 200 is switched from the pop-up position to the push-down position, the indicator 200 abuts against the fourth torsion arm 502 through the second abutting portion 203 to drive the fourth torsion arm 502 to rotate, and at this time, the third torsion arm 501 can drive the swing link 300 to rotate and reset.

As shown in fig. 3, the housing 100 is further provided with a main spring rotation shaft 102 and a main spring stopper 101, a main spring 400 is mounted on the main spring rotation shaft 102, and a first torsion arm 401 abuts against the main spring stopper 101 to restrict movement of the first torsion arm 401.

Further, the swing link 300 has a rotation shaft 305 provided at a rotation center thereof in a protruding manner, the rotation shaft 305 is rotatably coupled to the housing 100, a mounting portion 3051 is provided on the rotation shaft 305, the return spring 500 is mounted on the rotation shaft 305, and at least a portion of the third torsion arm 501 is mounted inside the mounting portion 3051. Mounting portion 3051 in this embodiment can be a mounting groove, and at least a portion of third torsion arm 501 can be mounted inside the mounting groove, so that third torsion arm 501 can drive swing link 300 to rotate.

In this embodiment, a rotation slot 306 is formed at a rotation center of the swing link 300 on a side facing away from the rotation shaft 305, the rotation slot 306 is coaxially disposed with the rotation shaft 305, an extending shaft 103 is disposed on the housing 100, at least a portion of the extending shaft 103 extends into the rotation slot 306, the extending shaft 103 cooperates with the rotation slot 306 to movably connect the swing link 300 to the housing 100, and thus the swing link 300 is stably mounted in the housing 100.

As shown in fig. 1 and 2, the trip force amplifying mechanism further includes a trip device 600, the trip device 600 is mounted inside the housing 100, the swing link 300 further has a driving arm 304, and the trip device 600 is configured to drive the driving arm 304 to rotate the swing link 300 and to cause the indicator 200 to be disengaged from the first channel 3011.

Specifically, the release 600 has an activated state and an inactivated state, when the release 600 is inactivated, the indicator 200 is in the pressed-down position, the output shaft of the release 600 is arranged in a way of avoiding the driving arm 304, when the release 600 is activated, the output shaft drives the driving arm 304 to move, so that the first end of the channel is separated from the locking part, and the indicator 200 is switched to the ejected position.

As shown in fig. 5 and 6, the swing link 300 further has a driving arm 304, and the first connecting arm 301, the power output arm 303, the driving arm 304, and the second connecting arm 302 are arranged at intervals in sequence in the rotational direction of the swing link 300.

In the present embodiment, the housing 100 is provided with a through hole 106, at least a portion of the power output arm 303 protrudes from the housing 100 through the through hole 106, and the power output arm 303 is movable along the extending direction of the through hole 106.

Example two

The utility model provides an electric device, aiming at solving the problem of poor use effect of a tripping force amplifying mechanism in the prior art. The electric device comprises the tripping force amplification mechanism in the first embodiment.

Further, the electric equipment is an earth leakage breaker, as shown in fig. 7, the earth leakage breaker includes an air switch 700, and the power output arm 303 of the tripping force amplifying mechanism is drivingly connected to the air switch 700.

The leakage circuit breaker is formed by assembling an air switch 700 and a tripping force amplifying mechanism, wherein the air switch 700 is responsible for overload protection and comprises a moving contact and a static contact; the tripping force amplifying mechanism part is responsible for leakage protection, and the tripping force amplifying mechanism can drive the movable contact and the fixed contact of the air switch 700 to be separated.

In this embodiment, the trip unit 600 is activated, the output shaft of the trip unit 600 drives the swing link 300 to rotate, so that the indicator 200 exits the first channel 3011 of the swing link 300, the swing link 300 drives the power output arm 303 to rotate under the driving of the second torsion arm 402 of the main spring 400, the power output arm 303 drives the air switch 700 to operate to cut off the circuit, so as to protect the circuit, and the indicator 200 is switched from the pressed position to the ejected position, so that the on-off state of the circuit can be determined by observing the position of the indicator 200.

The power consuming device is not limited to the above-described earth leakage breaker, and may be another electric device.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. by arranging the first channel 3011 and the second channel 3021, at least a portion of the indicator 200 extends into the first channel 3011, and the contact area between the indicator 200 and the first connecting arm 301 is increased, so that the stability of the stop between the indicator 200 and the swing link 300 is improved, and the reliability of the tripping force amplifying mechanism is enhanced.

2. The swing link 300 has a large rotation angle driven by the elastic member, thereby improving the amplification effect of the tripping force amplification mechanism.

3. The whole structure is simple, and the cost is low.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. 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 is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. A trip force amplifying mechanism, comprising:

a swing link (300), the swing link (300) having a first connecting arm (301), a second connecting arm (302), and a power take-off arm (303), the first connecting arm (301) having a first channel (3011), the second connecting arm (302) having a second channel (3021);

an indicator (200), at least a portion of the indicator (200) extending into the first channel (3011) and stopping against a wall of the first channel (3011) or exiting the first channel (3011);

an elastic assembly, at least a portion of which protrudes into the second channel (3021) and is capable of abutting with at least a portion of the second channel (3021) to provide a rotational force to the swing link (300) to swing the power output arm (303) after the swing link (300) is disengaged from the indicator (200).

2. The trip force amplifying mechanism according to claim 1, further comprising a housing (100), said indicating member (200) being movably connected with said housing (100) and having a pressed-down position and a popped-up position, said elastic member being always abutted with said indicating member (200), said indicating member (200) having a catching portion (201),

when the indicator (200) is located at the pressing position, the clamping part (201) extends into the first channel (3011) and is abutted against the wall surface of the first channel (3011), and the elastic component can be abutted against the wall surface of the second channel (3021);

when the indicator (200) is located at the ejecting position, the clamping part (201) is separated from the first channel (3011), and the elastic component is abutted against the wall surface of the second channel (3021).

3. The trip force amplification mechanism of claim 2, wherein the first channel (3011) has a first snap face (30121) and the snap-in portion (201) has a second snap face (2011), the first snap face (30121) abutting the second snap face (2011) when the indicator (200) is in the depressed position.

4. The trip force amplification mechanism of claim 1, wherein the first connecting arm (301) comprises:

a first arm segment;

a second arm section, wherein the first arm section and the second arm section are oppositely and alternately arranged, and the first channel (3011) is formed between the first arm section and the second arm section;

first tie-beam (3012), first arm section passes through first tie-beam (3012) with the second arm section is connected, first tie-beam (3012) have first hasp face (30121), at least some of indicator (200) stretch into in first passageway (3011) with first hasp face (30121) laminating.

5. The trip force amplification mechanism of claim 1, wherein the second connecting arm (302) comprises:

a third arm segment;

a fourth arm segment, the third arm segment and the fourth arm segment being oppositely and spacedly arranged, and the second channel (3021) being formed between the third arm segment and the fourth arm segment;

a second connecting beam (3022), the third arm section being connected to the fourth arm section via the second connecting beam (3022), the second connecting beam (3022) having an abutment surface, at least a portion of the resilient assembly extending into the second channel (3021) and abutting the abutment surface.

6. The trip force amplifying mechanism according to claim 2, wherein the resilient assembly includes:

a main spring (400), the main spring (400) having a first torsion arm (401) and a second torsion arm (402), the first torsion arm (401) abutting the housing (100), the second torsion arm (402) extending into the second passage (3021) and abutting a wall surface of the second passage (3021);

reset spring (500), reset spring (500) have third torsion arm (501) and fourth torsion arm (502), third torsion arm (501) set up on swing connecting rod (300), fourth torsion arm (502) with indicator (200) butt, so that indicator (200) by pop out the position to during the motion of pushing down the position, through reset spring (500) drive swing connecting rod (300) rotate.

7. The tripping force amplification mechanism of claim 6, wherein the indicator (200) has a first abutment portion (202) and a second abutment portion (203) which are arranged at intervals, the second torsion arm (402) abuts against the first abutment portion (202), and the fourth torsion arm (502) abuts against the second abutment portion (203).

8. The tripping force amplifying mechanism according to claim 6, wherein a rotation shaft (305) is provided at a rotation center of the swing link (300) in a protruding manner, the rotation shaft (305) is rotatably connected to the housing (100), a mounting portion (3051) is provided on the rotation shaft (305), the return spring (500) is mounted on the rotation shaft (305), and at least a part of the third torsion arm (501) is mounted inside the mounting portion (3051).

9. The trip force amplifying mechanism according to claim 8, wherein a rotation groove (306) is formed at a side of a rotation center of the swing link (300) facing away from the rotation shaft (305), the rotation groove (306) is coaxially disposed with the rotation shaft (305), an extension shaft (103) is provided on the housing (100), and at least a portion of the extension shaft (103) is extended into an inside of the rotation groove (306).

10. The trip force amplification mechanism of claim 2, further comprising a trip unit (600), the trip unit (600) being mounted inside the housing (100), the swing link (300) further having a drive arm (304), the trip unit (600) being configured to drive the drive arm (304) to rotate the swing link (300) and to cause the indicator (200) to disengage from the first channel (3011).

11. The release-force amplifying mechanism according to claim 2, wherein the housing (100) has a guide rib (104) and a stopper (105), at least a portion of the second connecting arm (302) slides along a surface of the guide rib (104) when the indicator (200) is switched between the depressed position and the ejected position, and the stopper (105) is used to stop the movement of the second connecting arm (302).

12. The tripping force amplification mechanism according to any one of claims 1 to 11, wherein the swing link (300) further has a drive arm (304), and the first connection arm (301), the power output arm (303), the drive arm (304) and the second connection arm (302) are arranged at intervals in order in the rotational direction of the swing link (300).

13. An electric device characterized by comprising the tripping force amplification mechanism of any one of claims 1 to 12.

14. The electrical equipment of claim 13, wherein the electrical equipment is an electrical leakage circuit breaker comprising an air switch (700), and wherein the power take-off arm (303) of the tripping force amplification mechanism is in driving connection with the air switch (700).

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