CN214378292U - Linkage device of lock catch and moving contact of circuit breaker - Google Patents

Abstract

The utility model relates to a circuit breaker, especially the linkage of inside hasp and moving contact of circuit breaker. The utility model adopts the following technical scheme: the utility model provides a linkage of hasp and moving contact of circuit breaker which characterized in that: the upper end of the movable contact seat is provided with a sliding groove for the end of a connecting rod of the circuit breaker to slide, an off-line mechanism of the circuit breaker can enable the lock catch to rotate to enable the contact catch to lose the locking of the second end of the connecting rod, the second end of the connecting rod slides into the straight portion of the sliding groove at the moment, and the movable contact seat rotates to drive the movable contact to rotate to achieve the disconnection of the circuit breaker. By adopting the above scheme, the utility model provides an accessible mechanics principle and mechanistic principle reduce to jump to detain and make the product dropout power reduce novel linkage of hasp and moving contact of circuit breaker.

Description

Linkage device of lock catch and moving contact of circuit breaker

Technical Field

The utility model relates to a circuit breaker, especially the linkage of inside hasp and moving contact of circuit breaker.

Background

Traditional circuit breaker product mechanism has generally set up the lever, hasp and jump and detain, the structure is complicated with high costs, the unfavorable automatic assembly of jump knot volume, and the product part is many, the product has the risk of inefficacy, an accessible mechanics principle and mechanics principle are designed now and are reduced the part, get rid of the jump and detain and make the circuit breaker that the dropout power of product reduces, traditional circuit breaker product fixed establishment adopts the metal axle, because of the metal axle electric conduction has the problem of L utmost point N utmost point electric clearance undersize or the disconnected experiment back L utmost point and the withstand voltage breakdown problem of N utmost point to the product that 1P + N or L utmost point N utmost point all is provided with the contact, consequently do not adopt the metal axle to realize the location to the cooperation of product location adoption lever and shell. In the mechanical motion in-process between traditional circuit breaker lever and the moving contact, the friction produces plastics or metal particles and influences the contact motion, has consequently set up the moving contact activity conflict face corresponding with the moving contact and has made moving contact and conflict face inconsistent, and metal or plastic granules can fall into corresponding recess, make and do not influence the moving contact action, and the plastic granules that traditional hasp and lever motion in-process friction produced can make and take off a mouthful power increase, influences the action characteristic of product.

Disclosure of Invention

The utility model overcomes the problem that prior art exists provides an accessible mechanics principle and mechanistic principle and reduces to jump and detain and make the product tripping force reduce, and metal or plastic granules can fall into corresponding recess or space, do not influence the linkage of the hasp of the neotype circuit breaker of moving contact action and moving contact.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a linkage of hasp and moving contact of circuit breaker, including handle, hasp push rod mechanism, move contact seat and moving contact, be provided with the connecting rod between handle and the moving contact seat, the first end of connecting rod is connected on the handle, the second end connection of connecting rod is on moving the contact seat, hasp and moving contact all set up on moving the contact seat, realize through the torsional spring between moving contact and the moving contact seat that the linkage sets up its characterized in that: the movable contact seat is integrally provided with an installation column, the lock catch and the movable contact are movably sleeved on the installation column, the upper end part of the movable contact seat is provided with a sliding groove for the end part of the connecting rod of the circuit breaker to slide, the sliding groove comprises a bending part and a straight part, the upper end of the lock catch is provided with a touch arm, the touch arm is provided with a touch surface, the lock catch push rod mechanism comprises a bracket, a spring and a push rod, the bracket is arranged at the side edge of the lock catch in the shell of the circuit breaker, the bracket is provided with an accommodating cavity, the spring and the push rod are arranged in the accommodating cavity, the end part of the push rod is extended out of the accommodating cavity of the bracket under the action of the spring, the end part of the push rod is pressed against the side edge of the lock catch after the circuit breaker is disconnected, the touch surface of the lock catch is matched with the bending part of the sliding groove to lock the second end of the connecting rod of the circuit breaker, the handle can be pushed, and the handle drives the movable contact seat to rotate through the connecting rod, the moving contact seat drives the moving contact to rotate so as to realize the closing of the circuit breaker; the off-line mechanism of circuit breaker can make the hasp rotate then the conflict face loses the locking to the connecting rod second end to the hasp action after the circuit breaker combined floodgate, and the straight portion of connecting rod second end cunning spout this moment, and moving contact seat rotates and drives the moving contact rotation and realize the circuit breaker disconnection.

Through adopting above-mentioned scheme, adopt a new mode to realize the locking or the unblock to circuit breaker connecting rod tip, simple structure, convenience, reliable like this, in addition through the conflict face and the spout cooperation of hasp, as long as the control hasp rotates can, very practical, among the above-mentioned scheme, can also rotate back ejector pin at the hasp and reduce the thrust of hasp, like this to the requirement greatly reduced of release when tripping.

The utility model discloses a further setting is: the flexion of spout is in the one end downwarping near the handle, the downside of flexion is provided with spacing face and supports the face of pressing, spacing face is the connecting rod second end in the minimum position of spout flexion behind the circuit breaker separating brake, the first end that connecting rod and handle are connected behind the circuit breaker separating brake is higher than the connecting rod at the second end of spout flexion, the second end of connecting rod all contradicts on supporting the face in the circuit breaker combined floodgate in-process and combined floodgate back connecting rod, the thrust direction that the handle produced to the connecting rod second end this moment and support the contained angle that presses between the thrust direction that produces to the connecting rod second end and be less than 180 degrees, the ejector pin tip and the hasp side separation of circuit breaker combined floodgate back hasp push rod mechanism set up.

Through adopting above-mentioned scheme, guarantee the stability of circuit breaker work that can be fine, wherein spacing face and the setting of supporting the pressure face, can control the connecting rod when guaranteeing the handle operation, wherein spacing face is the position of restriction connecting rod second end, if its position can not be guaranteed, just unable operation, support the pressure face and be in circuit breaker combined floodgate process and combined floodgate back to the assurance that connecting rod second end produced thrust, and still handle the direction of thrust, can guarantee like this that the circuit breaker normally combined floodgate leaves the assurance that can thread off fast with combined floodgate back hasp, support the pressure face also can be in the same place with spacing face in this application file, the setting of above-mentioned position also guarantees that the circuit breaker can normally work.

The utility model discloses a further setting is: the outside that lies in the conflict face on the conflict arm is provided with the inclined plane that can supply connecting rod second end to slide in spout flexion, the hasp top and be located the below of conflict arm and be provided with and dial the arm, conflict arm and dial and be the fork between the arm and set up and form the fork mouth, the width of this fork mouth is greater than the diameter that connecting rod second end was held, dials the arm upper flank and can stir the straight portion that makes connecting rod second end slide in the spout to connecting rod second end when the circuit breaker separating brake.

Through adopting above-mentioned scheme, the inclined plane is the flexion that resets that the assurance was tripped the back connecting rod second end and can be smooth, carry out later operation, in fact also can not set up the inclined plane, only the tip at the face of contradicting set up the arc transition face can, as long as can not let the connecting rod second end get into the flexion can, the width of fork mouth is guaranteed to guarantee to divide the floodgate smoothly, the effect of dialling the arm is in case the connecting rod is glued when dividing the floodgate and is linked together, then dial the arm and can play the effect of stirring the connecting rod second end, guarantee to divide the floodgate smoothly, can not take place dangerous things.

The utility model discloses a further setting is: the contact arm and the shifting arm are arranged in a staggered mode, a positioning boss is arranged below the sliding groove of the movable contact seat, the upper side face of the positioning boss and the lower side face of the bending portion of the sliding groove are integrally arranged to form a pressing face, the pressing face and the pressing face are matched, the second end of the connecting rod of the circuit breaker can be locked, the second end of the connecting rod of the circuit breaker can be placed in the bending portion of the sliding groove, and the shifting arm is placed on the outer side face of the positioning boss.

Through adopting above-mentioned scheme, compact structure, the side sets up with the integration of flexion downside on the part of location boss in addition and constitutes the face of supporting, greatly increased like this supports the area of face of pressing, makes to support to press the atress better, and product property can be more stable.

The utility model discloses a further setting is: the bottom both sides of spout are provided with the recess, the bottom of erection column is provided with the arc projection around its week, forms the breach between arc projection and the arc projection, be provided with circular through-hole on the hasp, the hasp is established on the arc projection through circular through-hole cover, it is provided with protruding muscle to move the periphery that just is located the erection column on the contact seat, hasp medial surface and protruding muscle contact, the opening that supplies the ejector pin to put into is seted up to holding chamber one side on the support, be provided with the cylinder that supplies the spring housing to establish on the first end of ejector pin, spring one end is contradicted on the medial surface in holding chamber, and another pot head is established on the cylinder, and the first end below of ejector pin is provided with spacing limit, be provided with the step on the medial surface of ejector pin, be provided with on the inner wall in holding chamber and restrict ejector pin motion stroke boss with this step cooperation, the second end of ejector pin sets up the cambered surface.

Through adopting above-mentioned scheme, the dust can be piled up in the setting of recess, can not influence the motion of connecting rod second end, the hasp adopts above-mentioned scheme setting with the moving contact base, also be for the friction reduction, also can not have impurity adhesion hasp and moving contact seat in addition, and support, ejector pin and spring adopt above-mentioned mode setting, can be fine carry out work to the hasp, the circuit breaker closes a floodgate back in addition, the ejector pin can not support the hasp and press, the effect that does not have external force like this basically, so the power that promotes the hasp just needs to be very little.

The utility model discloses a last setting is: the moving contact sleeve is established on the erection column and its side is contradicted or is pressed close to: the tip of arc projection, the below of location boss is provided with the stopper, form the location mouth between stopper and the moving contact seat, it is equipped with the locating piece to lie in location boss below on the moving contact seat, be provided with the bayonet socket on the moving contact, it is provided with the cavity just to lie in bayonet socket correspondence department on the moving contact seat, the torsional spring is also established on the erection column, the first torque arm of torsional spring is contradicted on the location mouth, the second torque arm of torsional spring is contradicted on the bayonet socket of moving contact, and insert in the cavity after the second torque arm tip is buckled, on the moving contact and lie in and be provided with the spacer between location boss and the locating piece, the spacer is through the conflict restriction moving contact turned angle with location boss or locating piece.

By adopting the scheme, the moving contact is reasonable to mount, and particularly, the moving contact can be firstly pushed to be disconnected by the mechanism under the heavy current condition, so that the safety of a product is improved.

The present invention will be further described with reference to the following specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a perspective view of the movable contact and the movable contact base according to the embodiment of the present invention;

fig. 3 is a perspective view of a moving contact base according to an embodiment of the present invention;

FIG. 4 is a structural diagram of the latch according to the embodiment of the present invention;

fig. 5 is a structural diagram of the locking device cooperating with the moving contact base according to the embodiment of the present invention;

fig. 6 is a schematic diagram of thrust forces F1, F2 and an included angle a according to an embodiment of the present invention;

fig. 7 is a structural diagram of the engagement between the latch and the movable contact base at the product disconnection position according to the embodiment of the present invention;

fig. 8 is a structural diagram of the product of the present invention when the latch just starts to close is engaged with the movable contact base;

fig. 9 is a structural diagram of the engagement between the latch and the movable contact base in the closing process of the product according to the embodiment of the present invention;

fig. 10 is a structural diagram of the engagement between the latch and the movable contact base after the product of the embodiment of the present invention is closed;

fig. 11 is a structural diagram of the cooperation between the latch and the movable contact base when the product of the embodiment of the present invention is about to be disengaged;

fig. 12 is a structural diagram of the engagement between the latch and the movable contact base when the product of the embodiment of the present invention is forcibly released;

fig. 13 is a structural diagram of the cooperation of the latch and the movable contact base in the handle returning process after the product of the embodiment of the present invention is released;

fig. 14 is a structural diagram of the matching between the latch and the moving contact base when the moving contact of the mechanism is knocked open by the electromagnetic mechanism in the case of short circuit of the product of the present invention;

fig. 15 is a structural diagram of the cooperation between the latch and the moving contact base when the moving contact of the mechanism is not returned after being knocked open by the electromagnetic mechanism when the product of the utility model is in short circuit;

fig. 16 is an exploded view of the latch-pusher mechanism according to the embodiment of the present invention.

Detailed Description

As shown in fig. 1-16, a linkage device of a latch and a moving contact of a circuit breaker comprises a handle 6, a latch 1, a latch push rod mechanism 7, a moving contact seat 2 and a moving contact 3, wherein a connecting rod 4 is arranged between the handle 6 and the moving contact seat 2, a first end of the connecting rod 4 is connected to the handle 6, a second end of the connecting rod 4 is connected to the moving contact seat 2, the latch 1 and the moving contact 3 are both arranged on the moving contact seat 2, and the moving contact 3 and the moving contact seat 2 are linked by a torsion spring 5, in the embodiment of the present invention, the moving contact seat 2 and a mounting post 21 are integrally arranged, the latch 1 and the moving contact 3 are movably sleeved on the mounting post 21, the upper end of the moving contact seat 2 is provided with a chute 211 for sliding the end of the connecting rod 4, the chute 211 comprises a bending portion 2111 and a straight portion 2112, the upper end of the latch 1 is provided with a contact arm 11, the contact arm 11 is provided with a contact surface 111, the latch push rod mechanism 7 comprises a support 71, a spring 72 and a push rod 73, the support 71 is arranged at the side edge of the latch 1 in the breaker shell, the support 71 is provided with an accommodating cavity 711, the spring 72 and the push rod 73 are arranged in the accommodating cavity 711, the end part of the push rod 73 protrudes out of the accommodating cavity 711 of the support 71 under the action of the spring 72, the end part of the push rod 73 abuts against the side edge of the latch 1 after the breaker is disconnected, so that the contact surface 111 of the contact arm 11 of the latch 1 is matched with the bending part 2111 of the chute 211 to lock the second end of the connecting rod 4, the handle 6 can be pushed at the moment, the handle 6 drives the movable contact seat 2 to rotate through the connecting rod 4, and the movable contact seat 2 drives the movable contact 3 to rotate to realize the closing of the breaker; after the circuit breaker is switched on, the off-line mechanism of the circuit breaker can move the latch 1 to enable the latch 1 to rotate, then the contact surface 111 loses the locking of the second end of the connecting rod 4, at the moment, the second end of the connecting rod 4 slides into the straight part of the sliding groove 2112, and the moving contact seat 2 rotates to drive the moving contact 3 to rotate to realize the disconnection of the circuit breaker. Through adopting above-mentioned scheme, adopt a new mode to realize the locking or the unblock to circuit breaker connecting rod tip, simple structure, convenience, reliable like this, in addition through the conflict face 111 and the spout 211 cooperation of hasp 1, as long as control hasp 1 rotates can, it is very practical, among the above-mentioned scheme, can also rotate back ejector pin 73 at hasp 1 and reduce to the thrust of hasp 1, the release just can promote the hasp as long as very little power promptly, requirement greatly reduced to the release like this.

In the embodiment of the present invention, the bending portion 2111 of the chute 211 is bent downward at the end close to the handle 6, the lower side of the bending portion is provided with a limiting surface 21111 and a pressing surface 21112, the limiting surface 21111 is the lowest point position of the second end of the connecting rod 4 at the bending portion 2111 of the chute 211 after the circuit breaker is opened, the first end of the connecting rod 4 connected with the handle 6 after the circuit breaker is opened is higher than the second end of the connecting rod 4 at the bending portion 2111 of the chute, the high and low positions are based on fig. 1, the second ends of the connecting rod 4 during the circuit breaker closing process and after the circuit breaker is closed are both pressed against the pressing surface 21112, at this time, an included angle a between the direction of the pushing force F1 generated by the handle 6 to the second end of the connecting rod 4 and the direction of the pushing force F2 generated by the pressing surface 21112 to the second end of the connecting rod 4 is smaller than 180 degrees, and the end of the push rod 73 of the push rod mechanism 7 after the circuit breaker is separated from the side 1; by adopting the above scheme, the stability of the work of the circuit breaker can be well ensured, wherein the arrangement of the limiting surface 21111 and the abutting surface 21112 ensures that the connecting rod 4 can be controlled when the handle 6 is operated, wherein the limiting surface 21111 limits the position of the second end of the connecting rod 4, if the position of the limiting surface 21111 cannot be ensured, the operation cannot be carried out, the abutting surface 21112 ensures that thrust is generated on the second end of the connecting rod 4 in the switching-on process and after the switching-on of the circuit breaker, and the direction of the thrust is also required to be processed, so that the condition that the normal switching-on of the circuit breaker and the leaving of the lock catch 1 after the switching-on can be ensured to be quickly released can be ensured, the abutting surface 21112 can also be connected with the limiting surface 21111 in the application file, and the arrangement of the positions also ensures that the circuit breaker can normally work.

The embodiment of the utility model provides an in, the outside that lies in conflict face 111 on the conflict arm 11 is provided with the inclined plane 112 that can supply connecting rod 4 second end to slide into spout 211 flexion 2111, 1 top of hasp and the below that lies in conflict arm 11 are provided with dials arm 12, and conflict arm 11 and dial and be the fork opening between the arm 12 and set up and form the fork mouth, and the width of this fork mouth is greater than the diameter that connecting rod 4 second was held, dials arm 12 and goes up the side and can stir connecting rod 4 second end when the circuit breaker separating brake and make connecting rod 4 second end slide into straight portion 2112 of spout. Through adopting above-mentioned scheme, inclined plane 112 is the flexion 2111 that resets that guarantees that dropout back connecting rod 4 second end can be smooth, carry out later operation, in fact also can not set up inclined plane 112, only set up the arc transition face at the tip of conflict face 111 can, as long as guarantee let connecting rod 4 second end get into flexion 2111 can, the width of fork mouth guarantees to divide the floodgate smoothly, dial arm 12's effect and be in case connecting rod 4 is glued when dividing the floodgate, then dial arm 12 and can play the effect of stirring connecting rod 4 second end, guarantee to divide the floodgate smoothly, can not take place dangerous things.

The embodiment of the utility model provides an in, the setting of offsetting of arm 11 and dialling arm 12, the spout 21 below of moving contact seat 2 is provided with location boss 22, and the side is personally submitted the integration with the downside of spout 211 flexion on the part of location boss 22 and is set up and constitute and support pressure face 21112, should support pressure face 21112 and conflict face 111 cooperation can lock 4 second ends of connecting rod of messenger's circuit breaker and hold the flexion 2111 of arranging spout 211 in the connecting rod 4 second end of circuit breaker, dial arm 12 and arrange the lateral surface of location boss 22 in. By adopting the above scheme, the structure is compact, in addition, the upper side surface of the part of the positioning boss 22 and the lower side surface of the bending part 2111 are integrally arranged to form the pressing surface 21112, thus the area of the pressing surface 21112 is greatly increased, the pressing stress is better, and the product performance is more stable.

In the embodiment of the present invention, grooves 2113 are provided on two sides of the bottom of the sliding groove 211, the bottom of the mounting post 21 is provided with an arc-shaped protruding column 212 around its circumference, a gap is formed between the arc-shaped protruding column 212 and the arc-shaped protruding column 212, the latch 1 is provided with a circular through hole 14, the latch 1 is sleeved on the arc-shaped protruding column 212 through the circular through hole 14, a convex rib 213 is provided on the movable contact seat 2 and at the periphery of the mounting post 212, the inner side surface of the latch 1 contacts with the convex rib 213, one side of the accommodating cavity 711 on the bracket 71 is provided with an opening for placing the push rod 73, the first end of the push rod 73 is provided with a cylinder 731 for the spring 72 to be sleeved, one end of the spring 72 abuts against the inner side surface of the accommodating cavity 711 on the cylinder 711, the other end is sleeved on the cylinder 731, a limiting edge 732 is provided below the first end of the push rod 73, which is used to facilitate the installation of the spring 72, a step 733 is provided on the inner side surface of the push rod 73, the inner wall of the accommodating cavity 711 is provided with a boss 712 which is matched with the step 733 to limit the movement stroke of the ejector rod 73, and the second end of the ejector rod 73 is provided with an arc surface 734. Through adopting above-mentioned scheme, the dust can be piled up in the setting of recess 2113, can not influence the motion of connecting rod second end, hasp 1 adopts above-mentioned scheme setting with moving contact base 2, also for reducing the friction, also can not have impurity adhesion hasp 1 and moving contact base 2 in addition, support 71, ejector pin 73 and spring 72 adopt above-mentioned mode to set up, can be fine carry out work to hasp 1, in addition the circuit breaker closes a floodgate back, ejector pin 73 can not support the pressure to hasp 1, the effect that does not have external force like this hasp 1, so the power that promotes hasp 1 is just very little.

In the embodiment of the present invention, the movable contact 3 is sleeved on the mounting post 21, and the side surface thereof is abutted against or pressed close to the end portion of the arc-shaped convex column 212, the limiting block 221 is disposed below the positioning boss 22, a positioning opening is formed between the limiting block 221 and the movable contact base 2, the positioning block 23 is disposed below the positioning boss 22 on the movable contact base 2, the bayonet 31 is disposed on the movable contact 3, a concave cavity is disposed on the movable contact base 2 and at the position corresponding to the bayonet 31, the torsion spring 5 is also sleeved on the mounting post 21, the first torsion arm of the torsion spring 5 is abutted against the positioning opening, the second torsion arm of the torsion spring 5 is abutted against the bayonet 31 of the movable contact 3, and the end of the second torsion arm is bent and inserted into the cavity, a positioning piece 32 is arranged on the moving contact 3 and between the positioning boss 22 and the positioning block 23, and the positioning piece 32 limits the rotation angle of the moving contact 3 through the interference with the positioning boss 22 or the positioning block 23. By adopting the scheme, the moving contact 3 is reasonably installed, and particularly, the moving contact 3 can be firstly pushed to be disconnected by the mechanism under the heavy current condition, so that the brake-separating speed is accelerated, the product breaking capacity is improved, and the product safety is improved.

Claims (6)

1. The utility model provides a linkage of hasp and moving contact of circuit breaker which characterized in that: the circuit breaker comprises a handle, a lock catch push rod mechanism, a movable contact seat and a movable contact, wherein a connecting rod is arranged between the handle and the movable contact seat, the first end of the connecting rod is connected to the handle, the second end of the connecting rod is connected to the movable contact seat, the lock catch and the movable contact are both arranged on the movable contact seat, the movable contact and the movable contact seat are in linkage arrangement through a torsional spring, an installation column is integrally arranged on the movable contact seat, the lock catch and the movable contact are both movably sleeved on the installation column, a sliding groove capable of allowing the end part of the connecting rod to slide is arranged at the upper end part of the movable contact seat, the sliding groove comprises a bending part and a straight part, a touch arm is arranged at the upper end of the lock catch, a touch surface is arranged on the touch arm, the lock catch push rod mechanism comprises a support, a spring and an ejector rod, the support is arranged at the side edge of the lock catch in a circuit breaker shell, an accommodating cavity is arranged on the support, and the spring and the ejector rod are arranged in the accommodating cavity, the end part of the ejector rod is extended out of the support accommodating cavity under the action of the spring, the end part of the ejector rod props against the side edge of the lock catch after the circuit breaker is disconnected, so that the propping surface of the lock catch propping arm is matched with the bent part of the chute to lock the second end of the connecting rod of the circuit breaker, the handle can be pushed at the moment, the handle drives the movable contact base to rotate through the connecting rod, and the movable contact base drives the movable contact to rotate to realize the closing of the circuit breaker; the off-line mechanism of circuit breaker can make the hasp rotate then the conflict face loses the locking to the connecting rod second end to the hasp action after the circuit breaker combined floodgate, and the straight portion of connecting rod second end cunning spout this moment, and moving contact seat rotates and drives the moving contact rotation and realize the circuit breaker disconnection.

2. The latch and movable contact linkage assembly of a circuit breaker according to claim 1, wherein: the flexion of spout is in the one end downwarping near the handle, the downside of flexion is provided with spacing face and supports the face of pressing, spacing face is the connecting rod second end in the minimum position of spout flexion behind the circuit breaker separating brake, the first end that connecting rod and handle are connected behind the circuit breaker separating brake is higher than the connecting rod at the second end of spout flexion, the second end of connecting rod all contradicts on supporting the face in the circuit breaker combined floodgate in-process and combined floodgate back connecting rod, the thrust direction that the handle produced to the connecting rod second end this moment and support the contained angle that presses between the thrust direction that produces to the connecting rod second end and be less than 180 degrees, the ejector pin tip and the hasp side separation of circuit breaker combined floodgate back hasp push rod mechanism set up.

3. The latch and movable contact linkage device of a circuit breaker according to claim 1 or 2, characterized in that: the outside that lies in the conflict face on the conflict arm is provided with the inclined plane that can supply connecting rod second end to slide in spout flexion, the hasp top and be located the below of conflict arm and be provided with and dial the arm, conflict arm and dial and be the fork between the arm and set up and form the fork mouth, the width of this fork mouth is greater than the diameter that connecting rod second end was held, dials the arm upper flank and can stir the straight portion that makes connecting rod second end slide in the spout to connecting rod second end when the circuit breaker separating brake.

4. The latch and movable contact linkage assembly of a circuit breaker according to claim 2, wherein: the contact arm and the shifting arm are arranged in a staggered mode, a positioning boss is arranged below the sliding groove of the movable contact seat, the upper side face of the positioning boss and the lower side face of the bending portion of the sliding groove are integrally arranged to form a pressing face, the pressing face and the pressing face are matched, the second end of the connecting rod of the circuit breaker can be locked, the second end of the connecting rod of the circuit breaker can be placed in the bending portion of the sliding groove, and the shifting arm is placed on the outer side face of the positioning boss.

5. The latch and movable contact linkage device of a circuit breaker according to claim 1 or 2, characterized in that: the bottom both sides of spout are provided with the recess, the bottom of erection column is provided with the arc projection around its week, forms the breach between arc projection and the arc projection, be provided with circular through-hole on the hasp, the hasp is established on the arc projection through circular through-hole cover, it is provided with protruding muscle to move the periphery that just is located the erection column on the contact seat, hasp medial surface and protruding muscle contact, the opening that supplies the ejector pin to put into is seted up to holding chamber one side on the support, be provided with the cylinder that supplies the spring housing to establish on the first end of ejector pin, spring one end is contradicted on the medial surface in holding chamber, and another pot head is established on the cylinder, and the first end below of ejector pin is provided with spacing limit, be provided with the step on the medial surface of ejector pin, be provided with on the inner wall in holding chamber and restrict ejector pin motion stroke boss with this step cooperation, the second end of ejector pin sets up the cambered surface.

6. The latch and movable contact linkage assembly of a circuit breaker according to claim 5, wherein: the movable contact sleeve is established on the erection column and its side is contradicted or is pressed close to the tip at the arc projection, the below of location boss is provided with the stopper, form the location mouth between stopper and the movable contact seat, it is equipped with the locating piece to lie in location boss below on the movable contact seat, be provided with the bayonet socket on the movable contact, it is provided with the cavity just to lie in bayonet socket department of correspondence on the movable contact seat, the torsional spring is also established on the erection column, the first torque arm of torsional spring is contradicted on the location mouth, the second torque arm of torsional spring is contradicted on the bayonet socket of movable contact, and insert in the cavity after the second torque arm tip is buckled, on the movable contact and lie in and be provided with the spacer between location boss and the locating piece, the spacer is through the conflict restriction movable contact turned angle with location boss or locating piece.

Images