CN108565185A - The electric leakage instruction protection mechanism of leakage circuit breakers and electric leakage instruction guard method - Google Patents
The electric leakage instruction protection mechanism of leakage circuit breakers and electric leakage instruction guard method Download PDFInfo
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- CN108565185A CN108565185A CN201810621091.9A CN201810621091A CN108565185A CN 108565185 A CN108565185 A CN 108565185A CN 201810621091 A CN201810621091 A CN 201810621091A CN 108565185 A CN108565185 A CN 108565185A
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- electric leakage
- lock
- instruction button
- leakage
- spring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
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Abstract
The present invention provides electric leakage instruction protection mechanism and the electric leakage instruction guard method of a kind of leakage circuit breakers, and the electric leakage instruction protection mechanism of leakage circuit breakers includes:Shell (1), handle (2), instruction button (3), instruction button spring (4), electric leakage lock (5), electric leakage latch spring (6), buckle releaser mandril (7), tripping (8), lock (9) and draw bar (10).Advantage is:(1) when circuit failure causes circuit breaker tripping to disconnect, electric leakage dropout indicative function can be realized, to which personnel convenient to overhaul quickly judge that leak current fault occurs;(2) when circuit failure causes circuit breaker tripping to disconnect, it can stop and the relevant tripping part of operation handle, it prevents leakage circuit breakers to be closed again, to effectively prevent the case where circuit is connected in service personnel's maloperation in turn, ensure that the safety of service personnel.
Description
Technical field
The invention belongs to leakage circuit breakers mechanism technology fields, and in particular to a kind of electric leakage instruction protection of leakage circuit breakers
Mechanism and electric leakage instruction guard method.
Background technology
With the development of low-voltage circuit breaker scientific and technological level, the electricity consumption of routine work and life is increasing, in order to ensure
The safety of electricity consumption, breaker are widely applied in intelligent grid, wherein the disconnection of leakage circuit breakers and closure be by
Come what is realized, some leakage circuit breakers currently produced on the market are specified when occurring in circuit for operation handle and transmission mechanism
Leakage current and cause leakage circuit breakers thread off disconnect after, can directly operation handle make leakage circuit breakers be closed to connect line
Road.Then in practical application, there are certain defects for such case, i.e., when circuit failure causes circuit breaker tripping to disconnect
When, one service personnel can not judge that leakage circuit breakers is because which kind of failure leads to its disconnection, for example, short circuit, overload or electric leakage
Etc. failures etc., to bring certain difficulty to service personnel's investigation.Secondly when circuit needs personnel to overhaul, it is easy by people's maloperation
And then circuit is connected, to bring prodigious security threat to service personnel.
Invention content
In view of the defects existing in the prior art, the present invention provide a kind of leakage circuit breakers electric leakage instruction protection mechanism and
Electric leakage instruction guard method, can effectively solve the above problems.
The technical solution adopted by the present invention is as follows:
The present invention provides a kind of electric leakage instruction protection mechanism of leakage circuit breakers, including:Shell (1), handle (2), instruction
Button (3), instruction button spring (4), electric leakage lock (5), electric leakage latch spring (6), buckle releaser mandril (7), tripping (8), lock
Detain (9) and draw bar (10);
The instruction button (3) is movable up and down to be installed in the vertical slots that the shell (1) opens up;The instruction is pressed
The top of button spring (4) is fixedly connected with the cylinder (11) being fixedly mounted on the shell (1), the instruction button spring (4)
Bottom end be fixedly connected with barb (31) set in the instruction button (3), and then apply to the instruction button (3) upward
The pulling force of movement;
Electric leakage lock (5) is provided with positioning through hole (56), the positioning through hole (56) and is fixedly installed in shell (1)
Positioning cylinder connects, and then makes the electric leakage lock (5) that can be circled around the positioning cylinder;
It is described electric leakage latch spring (6) one end be hung in the 1st barb column (12) set by shell (1), the other end with it is described
Electric leakage lock (5) set by the 2nd barb column (51) be connected, the electric leakage latch spring (6) to the electric leakage latch (5) application around
The positioning cylinder carries out torque rotationally clockwise;
The buckle releaser mandril (7) is installed on the left side of the electric leakage lock (5), and the buckle releaser mandril (7) can control
It is mobile;When the buckle releaser mandril (7) is failure to actuate, the instruction button (3) pressed by external force and electric leakage lock (5)
Occlusion;When the buckle releaser mandril (7) moves right, electric leakage lock (5) is pushed to overcome the spring force of electric leakage latch spring (6)
It rotates counterclockwise, in rotation process, electric leakage lock (5) can not carry out occlusal contact condition, instruction button again with instruction button (3)
(3) pop-up is moved up under the spring-force driven dual of instruction button spring (4);
The handle (2) is pivotally mounted to the shell (1) above;The tripping (8) is fixedly installed in the shell
(1) internal, one end of the draw bar (10) and the handle (2) are hinged, the other end and the jump of the draw bar (10)
It is hinged to detain (8);The lock (9) is pivotally mounted to the shell (1) inside by latching shaft (92);
When the buckle releaser mandril (7) is failure to actuate, the electric leakage lock (5) and the lock (9) do not contact, the lock
Button (9) is engaged with the tripping (8), the shell (1), the handle (2), the draw bar (10), the tripping (8) and institute
It states lock (9) and constitutes four-bar linkage structure;When the buckle releaser mandril (7) moves right, electric leakage lock (5) is pushed to make counterclockwise
Rotation, electric leakage lock (5) further push lock (9) to be rotated counterclockwise around lock shaft (92), thus make the lock
(9) it is no longer engaged with the tripping (8), therefore, the shell (1), the handle (2), the draw bar (10), the tripping
(8) and the lock (9) can not constitute four-bar linkage structure.
Preferably, face (32) is stopped in instruction button (3) setting instruction button lower part;Electric leakage lock (5) setting with
Stop the electric leakage lock top that face (32) matches and stop face (53) in the instruction button lower part;Stop face (32) in the instruction button lower part
Stop face (53) with electric leakage lock top to be mutually engaged.
Preferably, the shell (1) is provided with the 2nd confined planes (14);The instruction button (3) is provided in instruction button
Stop face (34) in portion;When instruction button (3) pop-up, face (34) and the 2nd confined planes (14) are stopped in the instruction button top
After contact, the instruction button (3) does not continue to move up.
The present invention provides a kind of electric leakage instruction guard method of the electric leakage instruction protection mechanism according to leakage circuit breakers, including
Following steps:
Step 1, when instruction button (3) is pressed down under external force, under the action of leaking electricity latch spring (6), refer to
Show that button (3) is mutually engaged with electric leakage lock (5), meanwhile, spring of the electric leakage lock (5) in the electric leakage latch spring (6)
It turns to its left dropout face (52) under force effect to be in contact with the 1st confined planes (13) set by shell (1), at this point, the electric leakage is locked
The right dropout face (54) for detaining (5) is not contacted with the dropout arc surface (91) of lock (9), and electrical leakage tripping device is in unlock shape at this time
State, the lock (9) are engaged with tripping (8), and shell (1), handle (2), draw bar (10), tripping (8) and lock (9) constitute four
Link mechanism, operates the handle (2), leakage circuit breakers can be made to be closed by four-bar linkage structure;
Step 2, when leaking electricity, buckle releaser mandril (7) moves right and pushes the left dropout face of electric leakage lock (5)
(52), electric leakage lock (5) overcomes the spring masterpiece of electric leakage latch spring (6) to rotate counterclockwise, in rotation process, electric leakage lock
(5) occlusal contact condition can not be carried out again with instruction button (3), at this time the small arc surface (55) of electric leakage lock (5) and instruction button (3)
The contact of the 3rd confined planes (33), instruction button (3) moves up pop-up under the spring-force driven dual of instruction button spring (4), reaches
To leak current fault indicative function;
Meanwhile when electric leakage lock (5) rotates counterclockwise, lock (9) is pushed to be rotated counterclockwise around the shaft, thus
The lock (9) and the tripping (8) is set no longer to be engaged, therefore, the shell (1), the handle (2), the draw bar
(10), the tripping (8) and the lock (9) can not constitute four-bar linkage structure, and electrical leakage tripping device is in self-locking state at this time,
The handle (2) is operated, leakage circuit breakers can not be made to be closed.
Preferably, step 1, when instruction button (3) is pressed down under external force, in the work of electric leakage latch spring (6)
Under, instruction button (3) is mutually engaged with electric leakage lock (5), specially:
When instruction button (3) is pressed down under external force, instruction button (3) overcomes the power of instruction button spring (4)
It moves down, when being moved to a certain position, face (32) is stopped in electric leakage latch spring (6) in the instruction button lower part of instruction button (3)
Force effect under, stop face (53) with the electric leakage of electric leakage lock (5) lock top and be mutually engaged.
Preferably, in step 2, instruction button (3) moves up bullet under the spring-force driven dual of instruction button spring (4)
Go out, reaches leak current fault indicative function, specially:
Instruction button (3) is moved upward to its instruction button top under the spring-force driven dual of instruction button spring (4) and stops
Face (34) is no longer moved after being contacted with the 2nd confined planes (14) set by shell (1), and instruction button (3) is stretched out outside shell at this time, is reached
To leak current fault indicative function.
The electric leakage instruction protection mechanism of leakage circuit breakers provided by the invention and electric leakage instruction guard method have following
Advantage:
(1) when circuit failure causes circuit breaker tripping to disconnect, electric leakage dropout indicative function can be realized, to side
Just service personnel quickly judges that leak current fault occurs;(2) when circuit failure causes circuit breaker tripping to disconnect, Ke Yizhi
Firmly with the relevant tripping part of operation handle, leakage circuit breakers is prevented to be closed again, to effectively prevent service personnel's maloperation
And then the case where connecting circuit, it ensure that the safety of service personnel.
Description of the drawings
Fig. 1 is the unlocked state schematic diagram of leakage circuit breakers mechanism;
Fig. 2 is that leakage circuit breakers can closing structure schematic diagram;
Fig. 3 is the self-locking state schematic diagram of leakage circuit breakers mechanism;
When Fig. 4 is leakage circuit breakers self-locking, structural schematic diagram when can not be closed;
Fig. 5 be leakage circuit breakers mechanism core component assembling after before three-dimensional structure diagram;
Fig. 6 be leakage circuit breakers mechanism core component assembling after behind three-dimensional structure diagram;
Fig. 7 is the three-dimensional structure diagram of instruction button;
Fig. 8 is the three-dimensional structure diagram of electric leakage lock;
Front view when Fig. 9 is instruction button and electric leakage lock occlusive state;
Three-dimensional structure diagram behind when Figure 10 is instruction button and electric leakage lock occlusive state;
Three-dimensional structure diagram before when Figure 11 is instruction button and electric leakage lock occlusive state;
Figure 12 is instruction button and the front view latched when not being engaged that leaks electricity;
Figure 13 is three-dimensional structure diagram when instruction button pops up;
Figure 14 is the three-dimensional structure diagram of lock;
Figure 15 is the three-dimensional structure diagram of tripping;
Front view when Figure 16 is tripping and lock occlusive state;
Three-dimensional structure diagram when Figure 17 is tripping and lock occlusive state;
Figure 18 is three-dimensional structure diagram when tripping is not engaged with lock;
Figure 19 is front view when tripping is not engaged with lock.
Wherein:
1, shell;2, handle;3, instruction button;4, instruction button spring;5, electric leakage lock;6, leak electricity latch spring;7、
Buckle releaser mandril;8, tripping;9, it latches;10, draw bar;
11, cylinder;12, the 1st barb column;13, the 1st confined planes;14, the 2nd confined planes;
31, barb;32, face is stopped in instruction button lower part;33, the 3rd confined planes;34, face is stopped on instruction button top;
51, the 2nd barb column;52, left dropout face;53, face is stopped on electric leakage lock top;54, right dropout face;55, small arc surface;
56- positioning through hole;
91, dropout arc surface.92- latches shaft.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein only to
It explains the present invention, is not intended to limit the present invention.
The present invention provides a kind of electric leakage instruction protection mechanism of leakage circuit breakers, and it is disconnected to be especially mountable to low-voltage miniature electric leakage
In the device of road, main function is 2 points:(1) when circuit failure causes circuit breaker tripping to disconnect, it can realize that electric leakage is threaded off
Indicative function, to which personnel convenient to overhaul quickly judge that leak current fault occurs;(2) when circuit failure causes breaker de-
Button disconnect when, can stop with the relevant tripping part of operation handle, prevent leakage circuit breakers to be closed again, to effectively prevent
The case where service personnel's maloperation and then connection circuit, it ensure that the safety of service personnel.
With reference to figure 1- Figure 19, the electric leakage instruction protection mechanism of leakage circuit breakers includes:Shell 1, handle 2, instruction button 3,
Instruction button spring 4, electric leakage lock 5, electric leakage latch spring 6, buckle releaser mandril 7, tripping 8, lock 9 and draw bar 10;
Be the structure chart of instruction button with reference to figure 7, instruction button 3 is movable up and down be installed on shell 1 open up it is vertical
In slot, stop movement after being moved upward to shell confined planes, instruction button is stretched out outside shell at this time, forms shape shown in Figure 13
State can play leak current fault indicative function;Instruction button be equipped with the matched instruction button top of shell stop face 34 and with leakage
Stop face 32 in the matched instruction button lower part of electric lock button;The cylinder 11 being fixedly mounted on the top of instruction button spring 4 and shell 1
Be fixedly connected, specifically, can be hung on cylinder 11 set by shell, the bottom end of instruction button spring 4 with it is set in instruction button 3
Barb 31 is fixedly connected, and then applies the pulling force moved upwards to instruction button 3, is stretched out to make instruction button pop up
Outside shell;
With reference to figure 8, for the structure chart of electric leakage lock, electric leakage lock 5 is provided with positioning through hole 56, the positioning through hole 56 with it is solid
Positioning cylinder of the Dingan County loaded on shell 1 connects, and then makes electric leakage lock 5 that can be circled around positioning cylinder;
One end of electric leakage latch spring 6 is hung in the 1st barb column 12 set by shell 1, the other end with the set by electric leakage lock 5
2 barb columns 51 are connected, and main function is:The latch spring 6 that leaks electricity applies clockwise around positioning cylinder progress to electric leakage lock 5
The torque of direction rotation is in contact when electric leakage lock 5 is rotated clockwise to its left dropout face 52 with the 1st confined planes 13 set by shell
When stop operating, instruction button lower part stops face 32 and stops 53 phase of face with electric leakage lock top and be engaged at this time, passes through electric leakage latch spring 6
Power effect, it is ensured that electric leakage lock top, which stops face and stops face with instruction button lower part, is engaged reliable fit;With reference to figure 9, Tu10He
Figure 11, as electric leakage lock and instruction button occlusive state figure;
Apply downward power to instruction button when borrowing external force, electric leakage lock can be rotated clockwise to its left dropout face and shell
It stops operating when confined planes set by body are in contact, instruction button lower part stops face and stops face with electric leakage lock top and be mutually engaged at this time;
Buckle releaser mandril 7 is installed on the left side of electric leakage lock 5, and buckle releaser mandril 7 can move left and right;When buckle releaser mandril 7
When being failure to actuate, the instruction button 3 and electric leakage lock 5 pressed by external force are engaged;Specifically, instruction button 3 is arranged under instruction button
Stop face 32 in portion;5 setting of electric leakage lock stops the electric leakage lock top that face 32 matches with instruction button lower part and stops face 53;Instruction button
Stop face 32 and stop face 53 with electric leakage lock top and be mutually engaged in lower part.
When circuit failure causes circuit breaker tripping to disconnect, buckle releaser mandril 7 moves right, and pushes electric leakage lock 5
Left dropout face overcome the spring masterpiece of electric leakage latch spring 6 to rotate counterclockwise, in rotation process, electric leakage lock 5 is pressed with instruction
Button 3 can not carry out occlusal contact condition again, and with reference to figure 12, structure chart when as electric leakage lock 5 is not engaged with instruction button 3 refers to
Show that button 3 moves up pop-up under the spring-force driven dual of instruction button spring 4 and stretches out outside shell;Electric leakage latches in electric leakage lock
It is locked under the action of spring force at some rotational angle and no longer moves.Wherein, shell 1 is provided with the 2nd confined planes 14;Instruction is pressed
Button 3 is provided with instruction button top and stops face 34;When instruction button 3 pops up, instruction button top is stopped face 34 and is connect with the 2nd confined planes 14
After touch, instruction button 3 does not continue to move up.
It is the structure chart of tripping with reference to figure 15;With reference to the structure chart that figure 14 is lock;In conjunction with Fig. 4 and Fig. 5, handle 2 can turn
It is dynamic to be installed on above shell 1;Tripping 8 is fixedly installed in inside shell 1, and one end of draw bar 10 and handle 2 are hinged, draw bar 10
The other end and tripping 8 it is hinged;Lock 9 is pivotally mounted to by latching shaft 92 inside shell 1;
When buckle releaser mandril 7 is failure to actuate, electric leakage lock 5 and lock 9 do not contact, and lock 9 is engaged with tripping 8, at this time for
The state of Figure 16 and Figure 17, shell 1, handle 2, draw bar 10, tripping 8 and lock 9 constitute four-bar linkage structure;When buckle releaser mandril
7 when moving right, and electric leakage lock 5 is pushed to rotate counterclockwise, electric leakage lock 5 further push lock 9 around latch shaft 92 into
Row rotates counterclockwise, and lock 9 and tripping 8 is thus made no longer to be engaged, and forms the state of Figure 18 and Figure 19, therefore, shell 1, handle
2, draw bar 10, tripping 8 and lock 9 can not constitute four-bar linkage structure.
The present invention also provides a kind of electric leakages of the electric leakage instruction protection mechanism according to leakage circuit breakers to indicate guard method, packet
Include following steps:
Step 1, when instruction button 3 is pressed down under external force, under the action of leaking electricity latch spring 6, instruction is pressed
Button 3 is mutually engaged with electric leakage lock 5, meanwhile, it is de- that electric leakage lock 5 turns to its left side under the spring-force driven dual of electric leakage latch spring 6
Buckle side 52 is in contact with the 1st confined planes 13 set by shell 1, at this point, the right dropout face 54 of electric leakage lock 5 and the dropout of lock 9 are justified
Cambered surface 91 does not contact, and does not interfere, and electrical leakage tripping device is in the unlocked state at this time, with reference to figure 1, illustrates for unlocked state
Figure;At this point, lock 9 is engaged with tripping 8, shell 1, handle 2, draw bar 10, tripping 8 and lock 9 constitute four-bar linkage structure, at this time
Tripping 8 and lock 9 form rigid connection, and operation handle 2 can be such that leakage circuit breakers is closed by four-bar linkage structure transmission;With reference to
Fig. 2, as in the unlocked state, operation handle rotate and make the state diagram of leakage circuit breakers closure.
In this step, when instruction button 3 is pressed down under external force, under the action of leaking electricity latch spring 6, instruction
Button 3 is mutually engaged with electric leakage lock 5, specially:
When instruction button 3 is pressed down under external force, instruction button 3 overcomes the power of instruction button spring 4 to moving down
Dynamic, when being moved to a certain position, face 32 is stopped under the force effect of electric leakage latch spring 6 in the instruction button lower part of instruction button 3, with
Stop face 53 phase occlusion in the electric leakage lock top of electric leakage lock 5.
Step 2, when leaking electricity, buckle releaser mandril 7 moves right and pushes the left dropout face 52 of electric leakage lock 5, leakage
Electric lock button 5 overcomes the spring masterpiece of electric leakage latch spring 6 to rotate counterclockwise, in rotation process, electric leakage lock 5 and instruction button 3
Occlusal contact condition can not be carried out again, and the small arc surface 55 of electric leakage lock 5 is contacted with the 3rd confined planes 33 of instruction button 3 at this time, is indicated
Button 3 moves up pop-up under the spring-force driven dual of instruction button spring 4 and stretches out outside shell, reaches leak current fault instruction and makees
With;Specifically, instruction button 3 is moved upward to its instruction button top under the spring-force driven dual of instruction button spring 4 stops face
34 contacted with the 2nd confined planes 14 set by shell 1 after no longer move, at this time instruction button 3 stretch out shell outside, reach leak current fault
Indicative function.
Meanwhile it when electric leakage lock 5 rotates counterclockwise, pushing lock 9 to be rotated counterclockwise around the shaft, thus making lock
Button 9 and tripping 8 are no longer engaged, and therefore, shell 1, handle 2, draw bar 10, tripping 8 and lock 9 can not constitute four-bar linkage structure,
Electrical leakage tripping device is in self-locking state at this time, is self-locking state figure with reference to figure 3;At this point, operation handle 2, can not make electric leakage disconnected
Road device is closed.Specifically, under self-locking state, if actuating handle leakage circuit breakers to be made is closed, that is, state shown in Fig. 4 is formed,
At this point, the right dropout face 54 of electric leakage lock and the dropout arc surface 91 of lock 9 must interfere, cause tripping 8 can not with lock 9
Reliable occlusion cannot form rigid connection, and therefore, shell 1, handle 2, draw bar 10, tripping 8 and lock 9 can not constitute double leval jib
Structure, operation handle cannot be such that leakage circuit breakers is closed.
The electric leakage instruction protection mechanism of leakage circuit breakers provided by the invention and electric leakage instruction guard method, have following
Design feature:
When not having to leak electricity, during instruction button moves down under external force, face is stopped in instruction button lower part
Face can be stopped with electric leakage lock top to be engaged, electric leakage lock rotation to its left dropout face at this time connects with confined planes set by shell
Tactile position, electrical leakage tripping device is in the unlocked state, and operation handle can be such that leakage circuit breakers is closed.
And when leaking electricity, buckle releaser mandril 7 makes electric leakage lock 5 rotate counterclockwise, on the one hand, electric leakage is made to latch and refer to
Show that button is no longer engaged, instruction button pops up outside shell, reaches leak current fault indicative function;On the other hand, electric leakage 5 inverse times of lock
When needle rotates, makes tripping 8 and lock that can not be engaged and form rigid connection, destroy four-bar linkage structure, make at electrical leakage tripping device
In self-locking state, operation handle can not be such that leakage circuit breakers is closed at this time;Therefore, maintenance personal's maloperation operation handle is avoided
The problem of;
The configuration of the present invention is simple, it is easy to operation, improve electrical safety.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
Depending on protection scope of the present invention.
Claims (6)
1. a kind of electric leakage of leakage circuit breakers indicates protection mechanism, which is characterized in that including:Shell (1), handle (2), instruction are pressed
Button (3), instruction button spring (4), electric leakage lock (5), electric leakage latch spring (6), buckle releaser mandril (7), tripping (8), lock
(9) and draw bar (10);
The instruction button (3) is movable up and down to be installed in the vertical slots that the shell (1) opens up;The instruction button bullet
The top of spring (4) is fixedly connected with the cylinder (11) being fixedly mounted on the shell (1), the bottom of the instruction button spring (4)
It holds and is fixedly connected with barb (31) set in the instruction button (3), and then moved upwards to the instruction button (3) application
Pulling force;
The electric leakage lock (5) is provided with positioning through hole (56), the positioning through hole (56) and the positioning for being fixedly installed in shell (1)
Cylinder connects, and then makes the electric leakage lock (5) that can be circled around the positioning cylinder;
One end of the electric leakage latch spring (6) is hung in the 1st barb column (12) set by shell (1), the other end and the electric leakage
The 2nd barb column (51) is connected set by lock (5), and the electric leakage latch spring (6) latches (5) to the electric leakage and applies around described
Positioning cylinder carries out torque rotationally clockwise;
The buckle releaser mandril (7) is installed on the left side of the electric leakage lock (5), and the buckle releaser mandril (7) can move left and right;
When the buckle releaser mandril (7) is failure to actuate, the instruction button (3) pressed by external force and electric leakage lock (5) occlusion;
When the buckle releaser mandril (7) moves right, push the spring masterpiece that electric leakage lock (5) overcomes electric leakage latch spring (6) inverse
Hour hands rotate, and in rotation process, electric leakage lock (5) can not carry out occlusal contact condition again with instruction button (3), and instruction button (3) exists
Pop-up is moved up under the spring-force driven dual of instruction button spring (4);
The handle (2) is pivotally mounted to the shell (1) above;The tripping (8) is fixedly installed in the shell (1)
Portion, one end of the draw bar (10) and the handle (2) are hinged, the other end and the tripping (8) of the draw bar (10)
It is hinged;The lock (9) is pivotally mounted to the shell (1) inside by latching shaft (92);
When the buckle releaser mandril (7) is failure to actuate, the electric leakage lock (5) and the lock (9) do not contact, the lock
(9) it is engaged with the tripping (8), the shell (1), the handle (2), the draw bar (10), the tripping (8) and described
It latches (9) and constitutes four-bar linkage structure;When the buckle releaser mandril (7) moves right, electric leakage lock (5) is pushed to make to turn counterclockwise
Dynamic, electric leakage lock (5) further pushes lock (9) to be rotated counterclockwise around lock shaft (92), thus makes the lock (9)
It is no longer engaged with the tripping (8), therefore, the shell (1), the handle (2), the draw bar (10), the tripping (8)
Four-bar linkage structure can not be constituted with the lock (9).
2. the electric leakage of leakage circuit breakers according to claim 1 indicates protection mechanism, which is characterized in that the instruction button
(3) face (32) is stopped in setting instruction button lower part;The electric leakage lock (5) is arranged stops face (32) phase with the instruction button lower part
Stop face (53) in the electric leakage lock top matched;Face (32) is stopped in the instruction button lower part and face (53) phase is stopped on electric leakage lock top
Occlusion.
3. the electric leakage of leakage circuit breakers according to claim 1 indicates protection mechanism, which is characterized in that the shell (1)
It is provided with the 2nd confined planes (14);The instruction button (3) is provided with instruction button top and stops face (34);The instruction button (3)
When pop-up, the instruction button top is stopped after face (34) contacts with the 2nd confined planes (14), and the instruction button (3) is no longer
It continues to move up.
4. a kind of electric leakage of electric leakage instruction protection mechanism according to claim 1-3 any one of them leakage circuit breakers indicates to protect
Maintaining method, which is characterized in that include the following steps:
Step 1, when instruction button (3) is pressed down under external force, under the action of leaking electricity latch spring (6), instruction is pressed
Button (3) is mutually engaged with electric leakage lock (5), meanwhile, spring masterpiece of the electric leakage lock (5) in the electric leakage latch spring (6)
It turns to its left dropout face (52) under to be in contact with the 1st confined planes (13) set by shell (1), at this point, electric leakage lock (5)
Right dropout face (54) with lock (9) dropout arc surface (91) do not contact, electrical leakage tripping device is in the unlocked state at this time, institute
It states lock (9) to be engaged with tripping (8), shell (1), handle (2), draw bar (10), tripping (8) and lock (9) constitute double leval jib
Structure, operates the handle (2), leakage circuit breakers can be made to be closed by four-bar linkage structure;
Step 2, when leaking electricity, the left dropout face (52) that buckle releaser mandril (7) moves right and electric leakage is pushed to latch (5),
Electric leakage lock (5) overcomes the spring masterpiece of electric leakage latch spring (6) to rotate counterclockwise, and in rotation process, electric leakage latches (5) and refers to
Show that button (3) can not carry out occlusal contact condition again, at this time the 3rd limit of the small arc surface (55) of electric leakage lock (5) and instruction button (3)
Plane (33) contacts, and instruction button (3) moves up pop-up under the spring-force driven dual of instruction button spring (4), reaches electric leakage
Indicating fault acts on;
Meanwhile it when electric leakage lock (5) rotates counterclockwise, pushing lock (9) to be rotated counterclockwise around the shaft, thus making institute
It states lock (9) and the tripping (8) is no longer engaged, therefore, the shell (1), the handle (2), the draw bar (10), institute
Four-bar linkage structure can not be constituted by stating tripping (8) and the lock (9), and electrical leakage tripping device is in self-locking state at this time, operate institute
Handle (2) is stated, leakage circuit breakers can not be made to be closed.
5. the electric leakage of the electric leakage instruction protection mechanism of leakage circuit breakers according to claim 4 indicates guard method, special
Sign is, step 1, when instruction button (3) is pressed down under external force, under the action of leaking electricity latch spring (6), indicates
Button (3) is mutually engaged with electric leakage lock (5), specially:
When instruction button (3) is pressed down under external force, instruction button (3) overcomes the power of instruction button spring (4) downward
Mobile, when being moved to a certain position, face (32) is stopped in the power of latch spring (6) of leaking electricity in the instruction button lower part of instruction button (3)
Under effect, stops face (53) with the electric leakage of electric leakage lock (5) lock top and be mutually engaged.
6. the electric leakage of the electric leakage instruction protection mechanism of leakage circuit breakers according to claim 4 indicates guard method, special
Sign is, in step 2, instruction button (3) moves up pop-up under the spring-force driven dual of instruction button spring (4), reaches leakage
Electric fault indicative function, specially:
Instruction button (3) is moved upward to its instruction button top under the spring-force driven dual of instruction button spring (4) and stops face
(34) it is no longer moved after being contacted with the 2nd confined planes (14) set by shell (1), instruction button (3) is stretched out outside shell at this time, is reached
Leak current fault indicative function.
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