CN208385328U - A kind of circuit breaker operation mechanism - Google Patents
A kind of circuit breaker operation mechanism Download PDFInfo
- Publication number
- CN208385328U CN208385328U CN201820863923.3U CN201820863923U CN208385328U CN 208385328 U CN208385328 U CN 208385328U CN 201820863923 U CN201820863923 U CN 201820863923U CN 208385328 U CN208385328 U CN 208385328U
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- CN
- China
- Prior art keywords
- moving contact
- rack
- handle
- push rod
- circuit breaker
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Abstract
The utility model discloses a kind of circuit breaker operation mechanism, including handle, handle push rod, moving contact rack and lock；The stent cavity for accommodating the lock is provided in the moving contact rack, the top of the stent cavity offers rack groove；One end of the handle push rod is connect with the handle, and the other end is placed in the rack groove；The rack groove is set as curve-like；The handle push rod is able to drive the moving contact rack rotation when sliding in the rack groove.The circuit breaker operation mechanism of the utility model, the movement travel of handle push rod can be made to increase, reduce the resistance of handle push rod return, product construction energy returning quickly, the qualification rate and production efficiency for improving product extend the service life of breaker, improve the reliability of its breaking course.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, more specifically to a kind of circuit breaker operation mechanism.
Background technique
Existing market is higher and higher to the reliability requirement of breaker, and releasing structure is as breaker execution part,
Reliability is most important；Operating mechanism equally influences the whole of breaker as control mechanism, the performance of operating mechanism in breaker
Body performance.
In addition, existing circuit breaker operation mechanism is in addition to moving contact and handle, it further include each components, common open circuit
Device operating mechanism is mostly made of components such as handle, handle push rod, lock, moving contacts.Existing operating mechanism handle push rod returns
The resistance of position is big, reduces the service life of breaker, reduces the reliability of its breaking course.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of circuit breaker operation mechanism, the circuit breaker operation mechanism
The movement travel that can make handle push rod increase, reduce the resistance of handle push rod return, product construction energy returning quickly improves
The qualification rate and production efficiency of product extend the service life of breaker, improve the reliability of its breaking course.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of circuit breaker operation mechanism, including handle, handle push rod, moving contact rack and lock；
The stent cavity for accommodating the lock is provided in the moving contact rack, the top of the stent cavity offers
Rack groove；
One end of the handle push rod is connect with the handle, and the other end is placed in the rack groove；The bracket is recessed
Slot is set as curve-like；
The handle push rod is able to drive the moving contact rack rotation when sliding in the rack groove.
Preferably, the moving contact rack is additionally provided with accommodating chamber, and the accommodating chamber and the rack groove are far from handle
Side connection, be provided with lock reset spring in the accommodating chamber.
It preferably, further include bracket reset spring, the bracket reset spring and the moving contact rack pass through pin shaft pivot
Axis connection, when breaker closing, the bracket reset spring deformed, and generation disconnects the moving contact rack to breaker
The power of locality rotation.
Preferably, the pin shaft passes through the moving contact rack.
Preferably, the axis hole matched with the pin shaft is provided in the stent cavity, the pin shaft is arranged in the axis
In hole.
Preferably, the axle bed being correspondingly arranged with the axis hole is additionally provided in the stent cavity, described lock is set in institute
It states on axle bed, the pin shaft wears the axis hole and axle bed.
According to above-mentioned technical solution, it is recognised that in the present invention, a kind of circuit breaker operation mechanism, including hand
Handle, handle push rod, moving contact rack and lock；The stent cavity for accommodating lock is provided in moving contact rack, stent cavity
Top offers rack groove；One end of handle push rod is connect with handle, and the other end is placed in rack groove；Rack groove setting
For curve-like；Handle push rod is able to drive moving contact rack rotation when sliding in rack groove.Curve-like rack groove is set
Meter can be such that the movement travel of handle push rod increases, reduce the resistance of handle push rod return, and reduction frictional force enables product construction
Returning quickly, handle push rod can quickly slide in contact supporting groove, prevent the handle push rod in operating mechanism motion process
It skids off, improves the qualification rate and production efficiency of product, extend the service life of breaker, improve the reliable of its breaking course
Property.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the front view of circuit breaker operation mechanism provided by the utility model embodiment；
Fig. 2 is the rearview of circuit breaker operation mechanism provided by the utility model embodiment；
Fig. 3 is the perspective view of the explosion of circuit breaker operation mechanism provided by the utility model embodiment；
Wherein, it is marked in attached drawing as follows:
1- handle, 2- handle push rod, 3- moving contact rack, 4- lock, 5- rack groove, 6- latch reset spring, 7- branch
Frame reset spring, 8- pin shaft, 9- axis hole, 10- accommodating chamber, 11- axle bed, 12- moving contact.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, Fig. 1 is the front view of circuit breaker operation mechanism provided by the utility model embodiment, and Fig. 2 is
The rearview of circuit breaker operation mechanism provided by the utility model embodiment, Fig. 3 are provided by the utility model embodiment
The perspective view of the explosion of circuit breaker operation mechanism.
As shown in Figure 1-3, in a specific embodiment of the utility model, a kind of circuit breaker operation mechanism, including hand
Handle 1, handle push rod 2, moving contact rack 3 and lock 4；Handle 1 is fixedly installed in circuit breaker base, can specifically pass through hand
Handle spring is fixed, and handle 1 can be along a degree of rotation of axis.The shape and structure of handle 1 and specific fixed form can be according to open circuits
The specific requirements of device and be arranged, be provided in the moving contact rack 3 for accommodate it is described lock 4 stent cavity, the bracket
The top of chamber offers rack groove 5, and one end of handle push rod 2 is connect with handle 1, and the other end is placed in rack groove 5；It is described
Rack groove 5 is set as curve-like；The handle push rod 2 is able to drive the moving contact when sliding in the rack groove 5
Bracket 3 rotates.
Specifically, can offer hole on handle 1, one end of handle push rod 2 is inserted into above-mentioned hole, the section of handle push rod 2
For circle, or other shapes can be set according to actual needs, so that handle push rod 2 and lock 4 and moving contact branch
Friction is small between frame 3, and then more laborsaving when the movement of driving handle 1, facilitates operation.The section of handle push rod 2 can also be with
It is set as oval or other shapes.Specific handle push rod 2 can be metallic rod, and corresponding lock 4 and moving contact rack 3 can be with
For plastic part.Since the frictional force of metal and plastic contact surface is less than the frictional force between metal and metal or plastics and plastics, from
And the friction between each component of breaking course operating mechanism is further reduced, thermal conductivity, so as to extend breaker
Service life.Handle push rod 2 is usually U-shaped bar, and other shapes can also be used certainly, only needs that handle 1 can be realized to lock
Transmission between button 4 and moving contact rack 3.Under external force, handle push rod 2 is placed in one end of dynamic rack groove 5 simultaneously
It can slide along curvilinear rack groove 5, and be contacted with rack groove 5, and then lock 4 is pushed to rotate with moving contact rack 3,
Until the moving contact 12 being connected with moving contact rack 3 is in contact with static contact, circuit is connected, breaker is switched by closed state
When to off-state, equally lock 4 is driven to rotate with moving contact rack 3 by handle push rod 2, so that moving contact 12 and static contact divide
From cutting circuit.In above-mentioned be opened or closed, during lock 4 is rotated with moving contact rack 3, handle push rod 2 and lock
Friction is generated between 4 and moving contact rack 3, the design of curve-like rack groove 5 can be such that the movement travel of handle push rod 2 increases,
Reduce the resistance of 2 return of handle push rod, reduces frictional force, enable product construction returning quickly, handle push rod 2 is in contact supporting
Can quickly be slid in groove 5, prevent the handle push rod 2 in operating mechanism motion process from skidding off, improve product qualification rate and
Production efficiency extends the service life of breaker, improves the reliability of its breaking course, wherein it should be noted that curve
There are many forms of shape, as long as can reach identical technical effect, it is preferred that curve-like is smooth curve, but is
Single camber line design with a fixed radian, is also possible to have a plurality of camber line of multiple radians to design, can also be one
Section is the design that one section of straight line is camber line.
In a specific embodiment of the utility model, the moving contact rack 3 is additionally provided with accommodating chamber 10, the appearance
Chamber 10 of receiving is connect with the rack groove 5 far from the side of handle 1, and lock reset spring 6 is provided in the accommodating chamber 10, with
The spatial area for further utilizing moving contact rack 3, saves the whole occupied space of operating mechanism, while lock being made to reset bullet
Spring 6 breaker work during no matter deform whether can be more stable setting in accommodating chamber 10, circuit breaker closing
Reset spring 6 is latched when conjunction relies on accommodating chamber 10 to deform, and generates the power for making 4 locking of lock, can also set in accommodating chamber 10
Certain fixed column is set, latches reset spring 6 to fixed, other prior arts can also be passed through by latching reset spring 6 certainly
In mode installed, the concrete form present invention is without limitation.
It further include bracket reset spring 7 in a specific embodiment of the utility model, the bracket reset spring 7
It is pivotally connected with the moving contact rack 3 by pin shaft 8, when breaker closing, the bracket reset spring 7 deformed, and generated
The power for rotating the moving contact rack 3 to circuit breaker open position direction, the pin shaft 8 pass through the moving contact rack 3, institute
The axis hole 9 for being provided in stent cavity and matching with the pin shaft 8 is stated, 8 rotor of pin shaft is arranged in the axis hole 9, institute
The axle bed 11 for being additionally provided in stent cavity and being correspondingly arranged with the axis hole 9 is stated, described lock 4 is set on the axle bed 11, institute
It states pin shaft 8 and wears the axis hole 9 and axle bed 11.Bracket reset spring 7 is pivotally connected with moving contact rack 3 by pin shaft 8, open circuit
Bracket reset spring 7 deforms when device is closed, and generates the power for rotating moving contact rack 3 to circuit breaker open position direction,
Specifically, stand spring groove can also be opened up on moving contact rack 3, and circuit breaker base is equipped with pedestal spring boss,
One end of bracket reset spring 7 is against in stand spring groove, and the other end is against on pedestal spring boss.Certainly, bracket resets
Spring 7 can also be installed by other modes in the prior art, and without limitation, bracket resets the concrete form present invention
The effect of spring 7 is to provide major impetus for the tripping process of breaker.It is of course also possible to use other are in breaker closing
Generating makes lock 4 or moving contact rack 3 disconnect elastic component or other modes realization tripping that direction rotates to breaker, not office
It is limited to reset spring.When breaker closing, bracket reset spring 7 and lock reset spring 6 act on moving contact rack 3 and lock
Button 4, and then moving contact rack 3 and lock 4 are acted on, so that so that it is disconnected the power that direction rotates to breaker is insufficient to allow two again
Person rotates, at this time latch 4 with rack groove 5 by 2 card resistance of handle push rod in rack groove 5, keep the closure of breaker
State.When overload or overcurrent occurs, lock 4 is disengaged, and releases position-limiting action of the lock 4 with rack groove 5 to handle push rod 2,
And then drive lock 4 to rotate with moving contact rack 3 in the case where bracket reset spring 7 and lock reset spring 6 act on, until moving contact
Bracket 3 and lock 4 restore the position disconnected to breaker.
In conclusion the circuit breaker operation mechanism of the utility model, can be such that the movement travel of handle push rod 2 increases, reduce
The resistance of 2 return of handle push rod, product construction energy returning quickly improve the qualification rate and production efficiency of product, and extension is resolved
The service life of road device, the reliability for improving its breaking course
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (6)
1. a kind of circuit breaker operation mechanism, which is characterized in that including handle, handle push rod, moving contact rack and lock；
The stent cavity for accommodating the lock is provided in the moving contact rack, the top of the stent cavity offers bracket
Groove；
One end of the handle push rod is connect with the handle, and the other end is placed in the rack groove；The rack groove is set
It is set to curve-like；
The handle push rod is able to drive the moving contact rack rotation when sliding in the rack groove.
2. a kind of circuit breaker operation mechanism as described in claim 1, which is characterized in that the moving contact rack is additionally provided with appearance
Receive chamber, the accommodating chamber is connect with the rack groove far from the side of handle, and lock is provided in the accommodating chamber and resets bullet
Spring.
3. a kind of circuit breaker operation mechanism as claimed in claim 2, which is characterized in that it further include bracket reset spring, it is described
Bracket reset spring and the moving contact rack are pivotally connected by pin shaft, the bracket reset spring generation of when breaker closing
Deformation generates the power for rotating the moving contact rack to circuit breaker open position direction.
4. a kind of circuit breaker operation mechanism as claimed in claim 3, which is characterized in that the pin shaft passes through the moving contact branch
Frame.
5. a kind of circuit breaker operation mechanism as claimed in claim 4, which is characterized in that be provided in the stent cavity with it is described
The axis hole that pin shaft matches, the pin shaft are arranged in the axis hole.
6. a kind of circuit breaker operation mechanism as claimed in claim 5, which is characterized in that be additionally provided in the stent cavity and institute
The axle bed that axis hole is correspondingly arranged is stated, described lock is set on the axle bed, and the pin shaft wears the axis hole and axle bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820863923.3U CN208385328U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit breaker operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820863923.3U CN208385328U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit breaker operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208385328U true CN208385328U (en) | 2019-01-15 |
Family
ID=64969160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820863923.3U Active CN208385328U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit breaker operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208385328U (en) |
-
2018
- 2018-06-05 CN CN201820863923.3U patent/CN208385328U/en active Active
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| GR01 | Patent grant |