CN208157345U - A kind of dc circuit breaker - Google Patents
A kind of dc circuit breaker Download PDFInfo
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- CN208157345U CN208157345U CN201820674581.0U CN201820674581U CN208157345U CN 208157345 U CN208157345 U CN 208157345U CN 201820674581 U CN201820674581 U CN 201820674581U CN 208157345 U CN208157345 U CN 208157345U
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- plate
- operation handle
- positioning
- drive rod
- circuit breaker
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Abstract
The utility model discloses a kind of dc circuit breaker, including pedestal and on-off system, it is hinged with operation handle on the pedestal, the operation handle is connect with on-off system, it is characterized in that：Drive rod is rotatably connected in the operation handle, accessory plate is slidably connected in the operation handle, cam is fixed on the drive rod, the push plate for contradicting with cam is fixed on the accessory plate, it is provided with spring between the push plate and operation handle, the position-limit mechanism for drive rod positioning is provided in the operation handle.The utility model has the following advantages that and effect：This programme utilizes new mechanical structure, achievees the purpose that be not easy to cause safety accident.
Description
Technical field
The utility model relates to a kind of dc circuit breakers.
Background technique
Effect of the breaker played in distribution line is disjunction and connect circuit, more particularly, passes through contact system
The separable contact pair of a pair closure or separation realize being switched on or switched off to protect circuit and electrical equipment of electric line.When
When there is abnormal failure in route, such as when short circuit, the rapidly disjunction circuit by the separation of contact pair, to avoid equipment damage；
When overload, bimetal leaf expanded by heating promotes contact to separation and rapidly disjunction circuit.The known reason such as industry, in current-carrying
In the case of contact separation can generate electric arc, especially when disconnecting Short-Circuit High Current, the energy of electric arc is big, tight to the ablation of contact
Weight, therefore in the various device for switching such as breaker, contactor, arc-control device is usually all set to extinguish electric arc, to guarantee electricity
Device equipment operational safety.
Currently, the Chinese patent that notification number is CN207183187U discloses a kind of operating mechanism of novel breaker, it
Including shell, shell is equipped with operation handle, lever, tripping, lock, connecting rod, and housing switch mouth is hingedly arranged in operation handle
Side, the other side be equipped with the first axle body, lever, lock be set on the first axle body, through U-shaped between operation handle and tripping
Connecting rod connection, lever are equipped with the second axle body, and tripping, which is set on the second axle body, forms the hinged of tripping and lever, set on lock
There is bayonet, bayonet position is corresponded in tripping equipped with fixture block, further includes the first resetting-mechanism having for resetting operation handle, is used for
Second resetting-mechanism of restoring lever, the third resetting-mechanism for reset lock.
The operating mechanism structure of this novel breaker is simple, and after fault and contact are to separation, operation handle passes through
First resetting-mechanism is downwardly turned over along hinged place, when circuit improves and then dials up operation handle along hinged place
And position, realize contact to closure by connecting rod.When needing to circuit emergency power off, worker manual toggle manipulator is needed
Handle, by circuitry cuts；The operation handle of the operating mechanism of this novel breaker is shorter, especially under dim environment, worker
Stir and operation handle or even need to touch shell with hand, then stirred downwards with hand along shell, finger encounter operation handle after
And stir operation handle downwards, however interior of shell can generate electric arc by being powered to switching to power off, the case where arc-chutes damage
Under, it is easy for causing safety accident.
Utility model content
In view of the deficienciess of the prior art, the utility model lies in that a kind of dc circuit breaker is provided, by manipulator
Accessory plate is set on handle, operation handle overturning is driven by accessory plate, achievees the purpose that be not easy to cause safety accident.
To achieve the above object, the utility model provides following technical solution：A kind of dc circuit breaker, including pedestal and
On-off system is hinged with operation handle on the pedestal, and the operation handle is connect with on-off system, the manipulator
It is rotatably connected to drive rod on handle, accessory plate is slidably connected in the operation handle, is fixed on the drive rod convex
It takes turns, the push plate for contradicting with cam is fixed on the accessory plate, is provided with bullet between the push plate and operation handle
Spring is provided with the position-limit mechanism for drive rod positioning in the operation handle.
By using above-mentioned technical proposal, drive rod is rotated, drive rod band moving cam rotates, and cam pushes push plate toward far
Direction from operation handle is mobile, and accessory plate is moved with the movement of push plate, makes worker by holding accessory plate, can pass through
Accessory plate drives operation handle overturning, in the case where worker need not touch pedestal, operation handle is conveniently stirred, to reach not
Easily cause the purpose of safety accident；Drive rod is continued to rotate, is acted on by the elastic force of spring, push plate can be made toward close to manipulator
The direction of handle is mobile, and accessory plate is moved with the movement of push plate, reduces space hold volume, is readily transported and carries.
The utility model is further arranged to：The position-limit mechanism includes elastic piece, positioning ring, locating slot, described
Positioning ring is fixed in operation handle and is sheathed on drive rod, and the locating slot is opened on the outer wall of positioning sleeve, described
Elastic piece one end is fixed on the outer wall of drive rod, and the other end is arranged in locating slot.
By using above-mentioned technical proposal, drive rod is rotated, elastic component is placed in locating slot, passes through the inner wall with locating slot
It contradicts, positions elastic component, while drive rod positions, obtain so that accessory plate positioning, easy to operate.
The utility model is further arranged to：Placement bar is rotatably connected on the accessory plate, on the placement bar
It is fixed with placement plate, the placement plate is hinged with connecting rod, and one end that the connecting rod is located remote from plate is hinged with driver plate, institute
The rotating bar stated is fixedly connected with shaft, and the shaft is rotationally connected on accessory plate, in the placement plate and driver plate
It is connected with the first tread plate.
By using above-mentioned technical proposal, bar is placed in rotation, and placement plate drives along the axis rotation for placing bar, placement plate
Connecting rod is mobile, and connecting rod drives driver plate to overturn along the axle center of shaft, and the first tread plate stretches out, anti-skidding by first convenient for worker
Band dynamic auxiliary plate is mobile, easy to operate.
The utility model is further arranged to：The positioning mechanism for placing bar limit is provided on the accessory plate.
By using above-mentioned technical proposal, positioning mechanism is realized the positioning to the first tread plate, is convenient for bar positioning is placed
Worker touches the first tread plate, easy to operate.
The utility model is further arranged to：The positioning mechanism include mounting hole, elastic component, positioning column, positioning it is recessed
Hole, the mounting hole are opened on accessory plate, and the elastic component is placed in mounting hole and one end and the inner wall of mounting hole connects
It connects, the other end is connect with positioning column, and the positioning shrinkage pool, which is opened in, to be placed on bar, and the positioning column abuts against positioning shrinkage pool
Inner wall on.
By using above-mentioned technical proposal, bar rotation is placed, shrinkage pool is corresponding with positioning column when positioning, and passes through the bullet of elastic component
Power effect makes to generate biggish frictional force between positioning column and positioning shrinkage pool, be realized by the effect of frictional force to placement bar
Positioning, thus realize automatically to the process for placing bar positioning, it is easy to operate.
The utility model is further arranged to：The second tread plate is connected in the operation handle.
Worker's hand and operation handle can be increased by the setting of the second tread plate by using above-mentioned technical proposal
Between frictional force, convenient for stirring operation handle.
In conclusion the utility model has the advantages that：
Drive rod is rotated, rotates drive rod band moving cam, cam drives accessory plate toward far from manipulator by push plate
The direction of handle is mobile, increases space hold volume, convenient for worker by holding accessory plate to drive operation handle to overturn；Pass through
First tread plate and the second tread plate are set, frictional force is increased, to further be easy to implement operation handle overturning.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of operation handle；
Fig. 3 is enlarged drawing at the A of Fig. 2；
Fig. 4 is the structural schematic diagram for embodying positioning mechanism；
Fig. 5 is to embody to place bar and placement plate attachment structure schematic diagram.
Appended drawing reference：1, pedestal；2, on-off system；21, static contact；22, moving contact；23, operating mechanism；24, electromagnetic system
System；25, arc-chutes；3, operation handle；30, drive rod；31, cam；32, push plate；33, spring；34, extension rod；4, accessory plate；
5, position-limit mechanism；51, elastic piece；52, positioning ring；53, locating slot；6, positioning mechanism；61, mounting hole；62, elastic component；63, fixed
Position column；64, shrinkage pool is positioned；71, bar is placed；72, placement plate；73, connecting rod；74, driver plate；75, shaft；81, the first tread plate；
82, the second tread plate.
Specific embodiment
The utility model is described further referring to attached drawing.
As shown in Figures 1 to 5, a kind of dc circuit breaker, including pedestal 1 and on-off system 2 are hinged with operation on pedestal 1
Handle 3.On-off system 2 includes static contact 21, moving contact 22, operating mechanism 23, electromagnetic system 24, arc-chutes 25.Static contact 21
It is fixed on pedestal 1.One end of operating mechanism 23 is connect with operation handle 3, and the other end and moving contact 22 are fixed.Electromagnetic system 24
It is fixed on pedestal 1 and is connect with moving contact 22.Arc-chutes 25 are fixed on pedestal 1, to eliminate electric arc.Moving contact 22, electricity
Magnetic system 24 is connected.Forward direction pulls operation handle 3, by the transmission of operating mechanism 23, contradicts moving contact 22 and static contact 21；
When reversely pulling operation handle 3, by the transmission of operating mechanism 23, moving contact 22 is separated with static contact 21.Above-mentioned is existing skill
Art does not repeat them here in the present embodiment.
For the ease of stirring operation handle 3, drive rod 30 is rotatably connected to by bearing in operation handle 3.It is driving
One end of bar 30 is fixed with cam 31.Accessory plate 4 is slidably connected along the length direction of operation handle 3.One on accessory plate 4
Body is provided with extension rod 34.Push plate 32 is fixedly connected with far from one end of accessory plate 4 in extension rod 34.Extension rod 34 and push plate
32 perpendicular placements.Spring 33 is arranged on extension rod 34, one end of spring 33 and push plate 32 contradict, the other end and manipulator
Handle 3 contradicts.It is acted on by the elastic force of spring 33, push plate 32 is kept contradicting with the outer wall of cam 31 always.
The position-limit mechanism 5 positioned for drive rod 30 is provided on the outer wall of operation handle 3.Position-limit mechanism 5 includes bullet
Property piece 51, positioning ring 52, locating slot 53.Positioning ring 52 is fixed in operation handle 3 and is sheathed on drive rod 30, by positioning ring
52 are coaxially disposed with drive rod 30.Multiple locating slots 53 are opened on the outer wall of positioning sleeve, and equal along the axle center of positioning sleeve
Even distribution.Elastic piece 51 is made of copper, and one end is fixed on the outer wall of drive rod 30, and the other end is arranged in locating slot 53.
By rotation of drive rod 30, elastic piece 51 is rotated with drive rod 30, unclamps drive rod 30, and elastic piece 51 is embedded at locating slot 53
In, realize the positioning to drive rod 30；While drive rod 30 positions, the positioning of accessory plate 4 is realized.
It is provided on accessory plate 4 and places bar 71 and the positioning mechanism 6 for placing the limit of bar 71.Positioning mechanism 6 includes
Mounting hole 61, elastic component 62, positioning column 63, positioning shrinkage pool 64.Positioning shrinkage pool 64 have it is multiple, be provided with place bar 71 on, and
It is uniformly distributed along the axle center for placing bar 71.Mounting hole 61 is provided on the outer wall of accessory plate 4.Elastic component 62 is placed on installation
In hole 61, the inner wall of one end and mounting hole 61 is contradicted, and one end of the other end and positioning column 63 contradicts.Positioning column 63 is arranged in peace
It fills in hole 61, and contradicts the inner wall of one end and positioning shrinkage pool 64 far from elastic component 62.In the present embodiment, using spring conduct
Elastic component 62, and elastic component 62 always applies toward the elastic force close to positioning 64 direction of shrinkage pool positioning column 63.Positioning column 63 is logical
Larger frictional force is generated between the effect for crossing elastic force, with positioning shrinkage pool 64, by the effect of frictional force, is realized to placement bar 71
Positioning.
It places and is fixed with placement plate 72 on the outer wall of bar 71.One end that placement plate 72 is located remote from bar 71 is hinged with connecting rod
73, one end that connecting rod 73 is located remote from plate 72 is hinged with driver plate 74, and driver plate 74 is fixed on shaft far from one end of connecting rod 73
On 75.Shaft 75 is rotationally connected on accessory plate 4.Placement plate 72 is arranged in parallel with driver plate 74.In placement plate 72 and driver plate
It is respectively and fixedly provided on 74 using the first tread plate 81 made of rubber.The second tread plate 82 is fixed on the surface of operation handle 3,
Second tread plate 82 is made of rubber.Bar 71 is placed in rotation, and placement plate 72 and driver plate 74 rotate synchronously, the first tread plate 81
It bends and is moved down on the surface of accessory plate 4, achieve the purpose that be readily transported；When moving upward, the first tread plate 81
It is stretched out from accessory plate 4, increases the frictional force between worker's hand, it is mobile convenient for driving accessory plate 4.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of dc circuit breaker, including pedestal (1) and on-off system (2), the pedestal are hinged with operation handle on (1)
(3), the operation handle (3) is connect with on-off system (2), it is characterized in that：It is rotatably connected in the operation handle (3)
Drive rod (30) is slidably connected accessory plate (4) in the operation handle (3), is fixed on the drive rod (30) convex
It takes turns (31), the push plate (32) for contradicting with cam (31), the push plate (32) and behaviour is fixed on the accessory plate (4)
Make to be provided with spring (33) between handle (3), the limit for drive rod (30) positioning is provided in the operation handle (3)
Mechanism (5).
2. a kind of dc circuit breaker according to claim 1, it is characterized in that：The position-limit mechanism (5) includes elastic piece
(51), positioning ring (52), locating slot (53), the positioning ring (52) are fixed on operation handle (3) and are sheathed on drive rod
(30) on, the locating slot (53) is opened on the outer wall of positioning sleeve, and drive rod is fixed in the elastic piece (51) one end
(30) on outer wall, the other end is arranged in locating slot (53).
3. a kind of dc circuit breaker according to claim 2, it is characterized in that：It is rotatably connected on the accessory plate (4)
It places bar (71), is fixed with placement plate (72) on the placement bar (71), the placement plate (72) is hinged with connecting rod (73),
One end that the connecting rod (73) is located remote from plate (72) is hinged with driver plate (74), and the rotating bar is fixedly connected with shaft
(75), the shaft (75) is rotationally connected on accessory plate (4), is connected on the placement plate (72) and driver plate (74)
First tread plate (81).
4. a kind of dc circuit breaker according to claim 3, it is characterized in that：It is provided with and is used on the accessory plate (4)
Place the positioning mechanism (6) of bar (71) limit.
5. a kind of dc circuit breaker according to claim 4, it is characterized in that：The positioning mechanism (6) includes mounting hole
(61), elastic component (62), positioning column (63), positioning shrinkage pool (64), the mounting hole (61) are opened on accessory plate (4), institute
The elastic component (62) stated is placed in mounting hole (61) and one end is connect with the inner wall of mounting hole (61), the other end and positioning column (63)
Connection, the positioning shrinkage pool (64), which is opened in, to be placed on bar (71), and the positioning column (63) abuts against positioning shrinkage pool (64)
Inner wall on.
6. a kind of dc circuit breaker according to claim 1 or 3, it is characterized in that：It is connected in the operation handle (3)
Second tread plate (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820674581.0U CN208157345U (en) | 2018-05-07 | 2018-05-07 | A kind of dc circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820674581.0U CN208157345U (en) | 2018-05-07 | 2018-05-07 | A kind of dc circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208157345U true CN208157345U (en) | 2018-11-27 |
Family
ID=64389831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820674581.0U Active CN208157345U (en) | 2018-05-07 | 2018-05-07 | A kind of dc circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208157345U (en) |
-
2018
- 2018-05-07 CN CN201820674581.0U patent/CN208157345U/en active Active
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