CN204464198U - A kind of emergent latching device of breaker of plastic casing - Google Patents
A kind of emergent latching device of breaker of plastic casing Download PDFInfo
- Publication number
- CN204464198U CN204464198U CN201420777768.5U CN201420777768U CN204464198U CN 204464198 U CN204464198 U CN 204464198U CN 201420777768 U CN201420777768 U CN 201420777768U CN 204464198 U CN204464198 U CN 204464198U
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- pull bar
- rotating shaft
- breaker
- emergent
- latching device
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Abstract
The utility model relates to a kind of emergent latching device of breaker of plastic casing, it is characterized in that: comprise pull bar, the stopper slot of one end on motor-operating mechanism mounting panel of pull bar stretches out, when one end of pull bar is positioned at the two ends of stopper slot, pull bar is in auto state and locking state respectively, the other end and the cam of pull bar are connected and fixed, rotating shaft is equipped with in cam, keeper is arranged with outside the latter half of rotating shaft, the part that rotary sleeve is provided with keeper is semiaxis, when pull bar is in auto state, the gap making dropout plate free to rotate is kept between the semiaxis of rotating shaft and the dropout plate of circuit breaker, when pull bar is in locking state, the semiaxis of rotating shaft contacts with the dropout plate of circuit breaker and dropout plate cannot be rotated.The emergent latching device structure that the utility model provides is simple, and cost is low, and reliability is high, is applicable to the breaker of plastic casing installing electricity behaviour.
Description
Technical field
The utility model relates to the emergent latching device of a kind of motor-operating mechanism (hereinafter referred to as electricity behaviour) breaker of plastic casing, belongs to low voltage electrical apparatus technology field.
Background technology
Low-pressure plastic shell circuit breaker mainly bears the use of the overload of distribution line and power consumption equipment, under voltage, short-circuit protection.At this special occasions, overload and short-circuit protection function should be had with the circuit breaker in electric line, as power consumption equipment, the overload of motor or generator circuit and short-circuit protection, and can the use of infrequently make-and-break contact under normal operation.
The breaker of plastic casing of some special purpose, in working order, should ensure that its normal power supply is unaffected.For the circuit of some important use, even if there is transshipping even short trouble at special state, circuit breaker must ensure power supply, disconnection of namely can not threading off.Electricity behaviour is the external accessory of circuit breaker, for far distance automatic separating brake and combined floodgate circuit breaker, is applicable to the place that automaticity is higher.General emergent snap close is mounted in breaker of plastic casing surface, and electricity behaviour is also mounted in circuit breaker surface, will certainly produce and interfere with each other.
Summary of the invention
The purpose of this utility model be to provide a kind of be installed on circuit breaker surface and can not grasp with electricity the emergent latching device producing and interfere with each other.
In order to achieve the above object, the technical solution of the utility model there is provided a kind of emergent latching device of breaker of plastic casing, it is characterized in that: comprise pull bar, the stopper slot of one end on motor-operating mechanism mounting panel of pull bar stretches out, when one end of pull bar is positioned at the two ends of stopper slot, pull bar is in auto state and locking state respectively, the other end and the cam of pull bar are connected and fixed, rotating shaft is equipped with in cam, keeper is arranged with outside the latter half of rotating shaft, the part that rotary sleeve is provided with keeper is semiaxis, when pull bar is in auto state, the gap making dropout plate free to rotate is kept between the semiaxis of rotating shaft and the dropout plate of circuit breaker, when pull bar is in locking state, the semiaxis of rotating shaft contacts with the dropout plate of circuit breaker and dropout plate cannot be rotated.
Preferably, fixed by clip between described cam and described rotating shaft.
Preferably, described motor-operating mechanism mounting panel has circular hole, the first half of described rotating shaft to stretch in this circular hole and with its matched in clearance.
The emergent latching device structure that the utility model provides is simple, and cost is low, and reliability is high, is applicable to the breaker of plastic casing installing electricity behaviour.
Accompanying drawing explanation
The front view of the emergent latching device of a kind of breaker of plastic casing that Figure 1A provides for the utility model;
The vertical view of the emergent latching device of a kind of breaker of plastic casing that Figure 1B provides for the utility model;
The installation diagram of the emergent latching device of a kind of breaker of plastic casing that Fig. 2 provides for the utility model;
Fig. 3 is motor-operating mechanism mounting panel schematic diagram.
Embodiment
For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The emergent latching device of a kind of breaker of plastic casing that the utility model provides comprises rotating shaft 1, keeper 2, cam 3, clip 4, rivet 5, pad 6, pull bar 7.On rotating shaft 1, cover has cam 3, and cam 3 is fixed by clip 4, and rotating shaft 1 can be followed the rotation of cam 3 and rotate.Protruding end rivet 5 cylinder lever connecting rod 7 of cam 3.
The mechanism that the utility model provides is directly installed between breaker cover and motor-operating mechanism mounting panel 8, pass in the stopper slot 9 on motor-operating mechanism mounting panel 8 of the end of pull bar 7, the upper end of rotating shaft 1 is enclosed within the circular hole of motor-operating mechanism mounting panel 8, can make like this to pull before and after pull bar 7 conveniently, Mechanical Reliability is high.
When pulling pull bar 7 after current, cam 3 just can driven rotary axle 1, the emergent latching device that can reach the utility model provides switches between auto state and locking state, and the length of stopper slot 9 is distances that the emergent latching device of pull bar 7 control switches between auto state and locking state.
Rotating shaft 1 cover has the part of keeper 2 to be semiaxis, and when pull bar 7 is in auto state, the semiaxis of rotating shaft 1 and the dropout plate of circuit breaker keep enough gaps, and dropout plate can rotate, thus ensures that any function of circuit breaker is unaffected.When pull bar 7 is in locking state, the semiaxis of rotating shaft 1 and the basic gapless of dropout plate of circuit breaker, dropout plate on circuit breaker can not rotate, thus ensure circuit breaker under any circumstance akinesia, even if circuit breaker is subject to intense impact continuous shaking or overload, under short-circuit conditions, its position still can remain unchanged.Circuit breaker can not trip free, and front and back pull pull bar 7, can realize emergent locker in the " switching between auto state and locking state two states.
Although the utility model describes with reference to the above embodiments; but those of ordinary skill in the art; will be appreciated that above embodiment is only used to the utility model is described; should understand and wherein can make various changes and revise and not depart from the utility model in a broad sense; so be not that conduct is to restriction of the present utility model; as long as in spirit of the present utility model, all the protection range of the utility model claim will be fallen into the change of above-described embodiment, distortion.
Claims (3)
1. the emergent latching device of a breaker of plastic casing, it is characterized in that: comprise pull bar (7), the stopper slot (9) of one end on motor-operating mechanism mounting panel (8) of pull bar (7) stretches out, when one end of pull bar (7) is positioned at the two ends of stopper slot (9), pull bar (7) is in auto state and locking state respectively, the other end and the cam (3) of pull bar (7) are connected and fixed, rotating shaft (1) is equipped with in cam (3), keeper is arranged with outside the latter half of rotating shaft (1), the part that rotating shaft (1) is arranged with keeper is semiaxis, when pull bar (7) is in auto state, the gap making dropout plate free to rotate is kept between the semiaxis of rotating shaft (1) and the dropout plate of circuit breaker, when pull bar (7) is in locking state, the semiaxis of rotating shaft (1) contacts with the dropout plate of circuit breaker and dropout plate cannot be rotated.
2. the emergent latching device of a kind of breaker of plastic casing as claimed in claim 1, is characterized in that: fixed by clip (4) between described cam (3) and described rotating shaft (1).
3. the emergent latching device of a kind of breaker of plastic casing as claimed in claim 1, is characterized in that: on described motor-operating mechanism mounting panel (8), have circular hole, the first half of described rotating shaft (1) to stretch in this circular hole and with its matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777768.5U CN204464198U (en) | 2014-12-10 | 2014-12-10 | A kind of emergent latching device of breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777768.5U CN204464198U (en) | 2014-12-10 | 2014-12-10 | A kind of emergent latching device of breaker of plastic casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464198U true CN204464198U (en) | 2015-07-08 |
Family
ID=53671047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420777768.5U Active CN204464198U (en) | 2014-12-10 | 2014-12-10 | A kind of emergent latching device of breaker of plastic casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204464198U (en) |
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2014
- 2014-12-10 CN CN201420777768.5U patent/CN204464198U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |