CN207082499U - Small type circuit breaker operating mechanism - Google Patents
Small type circuit breaker operating mechanism Download PDFInfo
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- CN207082499U CN207082499U CN201720595596.3U CN201720595596U CN207082499U CN 207082499 U CN207082499 U CN 207082499U CN 201720595596 U CN201720595596 U CN 201720595596U CN 207082499 U CN207082499 U CN 207082499U
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- China
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- connecting rod
- lever
- mobile terminal
- operating mechanism
- circuit breaker
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Abstract
A kind of small type circuit breaker operating mechanism, including handle, connecting rod, lever and lock, the handle is connected with lever and lock respectively by connecting rod, it is described to latch that to provide the part of tripping force for operating mechanism be dropout portion for being contacted with connecting rod, elastic component is provided between the lever and connecting rod, one end of the elastic component is connected with lever, and the other end is buffer part and connection can be contacted with connecting rod, and the connecting rod also acts on the buffer part with elastic component while acting on the dropout portion of lock.Small type circuit breaker operating mechanism of the present utility model, by having additional elastic component between connecting rod and lever, elastic component, which is acted on connecting rod, realizes that connecting rod is passed into trying hard to keep for lock stays some on lever, it is simple in construction, in the case where not changing operating mechanism key event and contact parameter, effectively reduce the active force on lock, and reducing mechanism tripping force, stabilization of enhancing product performance.
Description
Technical field
It the utility model is related to low voltage electrical apparatus technology field, and in particular to a kind of small type circuit breaker operating mechanism.
Background technology
Small type circuit breaker operating mechanism, general common mechanism are mainly replied by spring to provide contact pressure and thread off
Power, and mechanism, in "on" position, the active force that touch spring and back-moving spring are brought mainly passes to machine by the connecting rod of metal
Structure.One end of usual metal link rod is by the tripping positioning (or lock positions jointly with lever) in mechanism, and touch spring and multiple
The size of position spring force just determines active force of the metal link rod to lock, and then influences the big of tripping force by transmission mechanism
It is small.Present miniature circuit breaker progressively develops to high breaking, high current direction, and larger contact pressure or restoring force increase tripping force
Greatly, the stabilization of properties of product is influenceed.
Utility model content
The defects of the purpose of this utility model is to overcome prior art, there is provided a kind of simple in construction, reducing mechanism is threaded off
The small type circuit breaker operating mechanism of power, stability of enhancing product performance.
To achieve the above object, the utility model employs following technical scheme：
A kind of small type circuit breaker operating mechanism, including handle 5, connecting rod 1, lever 2 and lock 3, the handle 5 passes through connecting rod
1 is connected with lever 2 and lock 3 respectively, and the lock 3 is used to contact the portion for providing tripping force for operating mechanism with connecting rod 1
It is divided into dropout portion 30, elastic component 4 is provided between the lever 2 and connecting rod 1, one end of the elastic component 4 is connected with lever 2, separately
One end is buffer part 40 and connection can be contacted with connecting rod 1, and the connecting rod 1 also acts on while acting on the dropout portion 30 of lock 3
In the buffer part 40 with elastic component 4.
Preferably, the lever 2 be provided with connecting rod 1 mobile terminal 10 coordinate movable span 20, the movable span 20 it is big
The small size more than the mobile terminal 10 of connecting rod 1 so that there is the moveable free degree mobile terminal 10 of connecting rod 1 in movable span 20；
The side of mobile terminal 10 is the backstop side wall 200 of movable span 20 on the moving direction of mobile terminal 10 and opposite side is the de- of lock 3
The buffer part 40 of buckle 30 and elastic component 4.
Preferably, the movable span 20 is mounting hole, and the width of the mounting hole is suitable with the external diameter of mobile terminal 10, waist
The length in shape hole is more than the external diameter of mobile terminal 10.
Preferably, the buffer part 40 is realized between dropout portion 30 and mobile terminal 10 first acts on when mobile terminal 10 is moved
Dropout portion 30 is acted on after buffer part 40；Either buffer part 40 is concordant with dropout portion 30 realizes mobile terminal 10 while acts on
Buffer part 40 and dropout portion 30.
Preferably, the movable span 20 is the through-hole structure through lever 2, and the elastic component 4 is arranged on the top surface of lever 2
On, the lock 3 is located at the subjacent of lever 2.
Preferably, the elastic component 4 is torsion spring, and the side wall of lever 2 is hooked in one end of the torsion spring, and torsion spring is positioned at centre
Spring body is sleeved in the installation axle 21 on the top surface of lever 2, and the other end of torsion spring is L-shaped hook, the mobile terminal of the connecting rod 1 10
In in the opening of L-shaped hook.
Preferably, the connecting rod 1 is U-shaped structure, including positioned at the mobile terminal 10 at both ends and installation end 11 and is located at
Between connecting portion 12, the mobile terminal 10 of connecting rod 1 is inserted into the movable span 20 of lever 2, and the installation end 11 of connecting rod 1 is inserted into handle
In 5 mounting hole.
Preferably, the mobile terminal 10 and installation end 11 are straight round bar, and connecting portion 12 is then the two of angled connection
Individual straight round bar, and the angle is obtuse angle.
Preferably, in addition to tripping 6, the tripping 6 are sequentially provided with the latch hook coordinated with latching 3 lock tooth 31 along edge
61st, with electromagnetic trip device coordinate electromagnetic trip portion 62, with thermal tripping device coordinate thermal tripping portion 63 and with lever 2
The projection 65 that abuts against of protuberance 22, the middle part of the tripping 6, which is provided with, to be used to be pivoted on miniature circuit breaker housing
Rotating shaft 66.
Small type circuit breaker operating mechanism of the present utility model, by having additional elastic component, elastic component between connecting rod and lever
Act on connecting rod and realize that connecting rod is passed into trying hard to keep for lock stays some on lever, it is simple in construction, do not changing operation
In the case of mechanism key event and contact parameter, the active force on lock is effectively reduced, and reducing mechanism tripping force, raising are produced
Product stable performance.
Brief description of the drawings
Fig. 1 is the structural representation at the utility model small type circuit breaker operating mechanism back side；
Fig. 2 is the positive structural representation of the utility model small type circuit breaker operating mechanism；
Fig. 3 is the force analysis figure at the utility model small type circuit breaker operating mechanism back side；
Fig. 4 is the positive force analysis figure of the utility model small type circuit breaker operating mechanism；
Fig. 5 is the schematic diagram before the utility model small size breaker structure is threaded off；
Fig. 6 is the schematic diagram after the utility model small size breaker structure is threaded off.
Embodiment
The embodiment provided below in conjunction with accompanying drawing 1 to 6, further illustrate small type circuit breaker operating mechanism of the present utility model
Embodiment.Small type circuit breaker operating mechanism of the present utility model is not limited to the following description.
As depicted in figs. 1 and 2, small type circuit breaker operating mechanism of the present utility model, including handle 5, connecting rod 1, the and of lever 2
Lock 3, the handle 5 are connected with lever 2 and lock 3 respectively by connecting rod 1, and the lock 3 is for being contacted with connecting rod 1
The part that operating mechanism provides tripping force is dropout portion 30, is provided between the lever 2 and connecting rod 1 and is used to reduce connecting rod 1 with taking off
The elastic component 4 of active force between buckle 30, one end of the elastic component 4 are connected with lever 2, and the other end is buffer part 40 and can
Connection is contacted with connecting rod 1, the connecting rod 1 also acts on the buffer part with elastic component 4 while acting on the dropout portion 30 of lock 3
40.Small type circuit breaker operating mechanism of the present utility model, by having additional elastic component between connecting rod and lever, elastic component acts on
Realize that connecting rod is passed into trying hard to keep for lock stays some on lever on connecting rod, it is simple in construction, closed not changing operating mechanism
It is bonded and in the case of putting with contact parameter, effectively reduces the active force on latching, and reducing mechanism tripping force, enhance product performance
It is stable.
As shown in figure 3, touch spring and back-moving spring are implemented to the active force of operating mechanism by connecting rod 1, the active force
Size is F, and the mobile terminal 10 of connecting rod 1 is respectively acting on lever 2 and lock 3, and F power is decomposed into F1 and F2, wherein, F2 passes through lock
Button 3 passes to the trip positions of tripping 6.
As shown in figure 4, installing an elastic component 4 additional on lever 2, one end of elastic component 4 is acted on lever 2, the other end
Act on connecting rod 1.The original work of connecting rod 1 separate a part of F3 with the power F2 on lock 3 and acted on elastic component 4, then connecting rod 1
The power for acting on lock 3 is just changed into F2- (projections of the F3 on F2) from original F2, can effectively reduce the effect on lock 3
Power, and reduce tripping force.
Specifically, the lever 2 be provided with connecting rod 1 mobile terminal 10 coordinate movable span 20, the movable span 20 it is big
The small size more than the mobile terminal 10 of connecting rod 1 so that there is the moveable free degree mobile terminal 10 of connecting rod 1 in movable span 20；
The side of mobile terminal 10 is the backstop side wall 200 of movable span 20 on the moving direction of mobile terminal 10 and opposite side is the de- of lock 3
The buffer part 40 of buckle 30 and elastic component 4.Moreover, the movable span 20 is mounting hole, the width of the mounting hole and mobile terminal
10 external diameter is suitable, and the length of mounting hole is more than the external diameter of mobile terminal 10.Length of the mobile terminal 10 of the connecting rod 1 along mounting hole
Move in direction.Mounting hole is easy to fabricate, and improves connecting rod movement reliability.In addition, the buffer part 40 is located at dropout portion 30
Realized between mobile terminal 10 and act on dropout portion 30 after first acting on buffer part 40 when mobile terminal 10 is moved；Either buffer part
40 concordant with dropout portion 30 realize mobile terminal 10 while act on buffer part 40 and dropout portion 30.In addition, the movable span 20 is
Through the through-hole structure of lever 2, the elastic component 4 is arranged on the top surface of lever 2, and the lock 3 is under the bottom surface of lever 2
Side.The structure of operating mechanism is simple, and each part placement compact and reasonable, the elastic component set up does not influence the action of other parts, protects
Hinder the reliability of mechanism action.
The elastic component 4 is torsion spring, and the side wall of lever 2 is hooked in one end of the torsion spring, and torsion spring is positioned at middle spring body
It is sleeved in the installation axle 21 on the top surface of lever 2, the other end of torsion spring is L-shaped hook, and the mobile terminal 10 of the connecting rod 1 is erected at horizontal stroke
In the opening for the L-shaped hook put.The buffer part 40 is the straight spring wire of L-shaped chimoto.
The connecting rod 1 is U-shaped structure, including the company positioned at the mobile terminal 10 at both ends and installation end 11 and positioned at centre
Socket part 12, the mobile terminal 10 of connecting rod 1 are inserted into the movable span 20 of lever 2, and the installation end 11 of connecting rod 1 is inserted into the peace of handle 5
Fill in hole.Specifically, the mobile terminal 10 and installation end 11 are straight round bar, and connecting portion 12 is then two of angled connection
Straight round bar, and the angle is obtuse angle.
Small type circuit breaker operating mechanism of the present utility model, in addition to tripping 6, the tripping 6 along edge be sequentially provided with
Lock 3 lock tooth 31 coordinate latch hook 61, with electromagnetic trip device coordinate electromagnetic trip portion 62, with thermal tripping device coordinate
Thermal tripping portion 63, the projection 65 abutted against for the linkage portion 64 that is linked with other products and with the protuberance 22 of lever 2,
The middle part of the tripping 6 is provided with the rotating shaft 66 for being used for being pivoted on miniature circuit breaker housing.
As shown in figure 5, before small size breaker, latch 3 lock tooth 31 and snap in the latch hook 61 of tripping 6, latch 3
Tooth 31 and the phase separation of latch hook 61 of tripping 6, and effect of the linking rod 1 to dropout portion 30 are locked, makes outer dynamic balance suffered by lock 3；
Power suffered by the latch hook 61 of tripping 6, the active force with reference to projection 65 by the protuberance 22 of lever 2, equals external force suffered by tripping 6
Weighing apparatus, now operating mechanism is in the lock state.
When miniature circuit breaker reaches dropout condition, according to different situations, electromagnetic trip portion 62, the thermal tripping portion of tripping 6
63rd, linkage portion 64 can be acted on by power, and the action direction of power is tripping 6 is rotated counterclockwise (in original state Fig. 5 direction
Under), as shown in fig. 6, lock 3 separates with tripping 6 simultaneously, lock 3 loses the balance of power, turns counterclockwise in the presence of connecting rod 1
It is dynamic, the groove of lever 2 is exposed, lever 2 rotates counterclockwise in the presence of external force returns to initial trip positions.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (9)
- A kind of 1. small type circuit breaker operating mechanism, it is characterised in that：Including handle (5), connecting rod (1), lever (2) and (3) are latched, The handle (5) is connected with lever (2) and lock (3) respectively by connecting rod (1), and the lock (3) is used for and connecting rod (1) It is dropout portion (30) to contact and provide the part of tripping force for operating mechanism, and elastic component is provided between the lever (2) and connecting rod (1) (4), one end of the elastic component (4) is connected with lever (2), and the other end is buffer part (40) and can contact connection with connecting rod (1), The connecting rod (1) also acts on and the buffer part of elastic component (4) (40) while acting on dropout portion (30) of lock (3).
- 2. small type circuit breaker operating mechanism according to claim 1, it is characterised in that：The lever (2) is provided with connecting rod (1) movable span (20) that mobile terminal (10) coordinates, the size of the movable span (20) are more than the big of connecting rod (1) mobile terminal (10) It is small so that there is the moveable free degree mobile terminal (10) of connecting rod (1) in movable span (20)；Mobile side in mobile terminal (10) The side for moving up end (10) is the backstop side wall (200) of movable span (20) and opposite side is the dropout portion (30) for latching (3) With the buffer part (40) of elastic component (4).
- 3. small type circuit breaker operating mechanism according to claim 2, it is characterised in that：The movable span (20) is kidney-shaped Hole, the width of the mounting hole is suitable with the external diameter of mobile terminal (10), and the length of mounting hole is more than the external diameter of mobile terminal (10).
- 4. small type circuit breaker operating mechanism according to claim 2, it is characterised in that：The buffer part (40) is positioned at dropout Realized between portion (30) and mobile terminal (10) and act on dropout portion after first acting on buffer part (40) when mobile terminal (10) is mobile (30)；Either buffer part (40) is concordant with dropout portion (30) realizes mobile terminal (10) while acts on buffer part (40) and thread off Portion (30).
- 5. small type circuit breaker operating mechanism according to claim 2, it is characterised in that：The movable span (20) is through thick stick The through-hole structure of bar (2), the elastic component (4) are arranged on the top surface of lever (2), and the lock (3) is located at the bottom of lever (2) Below face.
- 6. small type circuit breaker operating mechanism according to claim 1 or 5, it is characterised in that：The elastic component (4) is torsion The side wall of lever (2) is hooked in spring, one end of the torsion spring, and torsion spring is sleeved on lever (2) top surface positioned at middle spring body In installation axle (21), the other end of torsion spring is L-shaped hook, and the mobile terminal (10) of the connecting rod (1) is located in the opening of L-shaped hook.
- 7. small type circuit breaker operating mechanism according to claim 1, it is characterised in that：The connecting rod (1) is U-shaped structure, Including the connecting portion (12) positioned at the mobile terminal at both ends (10) and installation end (11) and positioned at centre, the mobile terminal of connecting rod (1) (10) it is inserted into the movable span (20) of lever (2), the installation end (11) of connecting rod (1) is inserted into the mounting hole of handle (5).
- 8. small type circuit breaker operating mechanism according to claim 7, it is characterised in that：The mobile terminal (10) and installation end (11) it is straight round bar, connecting portion (12) is then two straight round bars of angled connection, and the angle is obtuse angle.
- 9. small type circuit breaker operating mechanism according to claim 1, it is characterised in that：Also include tripping (6), the tripping (6) along edge is sequentially provided with the latch hook (61) coordinated with the lock tooth (31) for latching (3), the electromagnetism coordinated with electromagnetic trip device takes off Buckle (62), the projection abutted against with the thermal tripping portion (63) of thermal tripping device cooperation and with the protuberance (22) of lever (2) (65), the middle part of the tripping (6) is provided with the rotating shaft (66) for being used for being pivoted on miniature circuit breaker housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595596.3U CN207082499U (en) | 2017-05-25 | 2017-05-25 | Small type circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595596.3U CN207082499U (en) | 2017-05-25 | 2017-05-25 | Small type circuit breaker operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082499U true CN207082499U (en) | 2018-03-09 |
Family
ID=61436815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720595596.3U Active CN207082499U (en) | 2017-05-25 | 2017-05-25 | Small type circuit breaker operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082499U (en) |
-
2017
- 2017-05-25 CN CN201720595596.3U patent/CN207082499U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |