CN203536251U - Cover opening power-off structure of breaker - Google Patents
Cover opening power-off structure of breaker Download PDFInfo
- Publication number
- CN203536251U CN203536251U CN201320746008.3U CN201320746008U CN203536251U CN 203536251 U CN203536251 U CN 203536251U CN 201320746008 U CN201320746008 U CN 201320746008U CN 203536251 U CN203536251 U CN 203536251U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- draw bar
- head
- pull lever
- projection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000000994 depressogenic effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000881 depressing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model discloses a cover opening power-off structure of a breaker. The structure comprises a breaker middle cover (1), a draw bar (2), a pulling rod (4), and an attachment cover (7). The breaker middle cover (1) is provided with a mounting hole and can be installed on a breaker body. The draw bar (2) is rotatably disposed and can be linked with a tripping mechanism of the breaker. The draw bar (2) is provided with a lug (3). The pulling rod (4) is scalable and is disposed through the mounting hole. An end of the pulling rod (4) facing the lug is provided with a pulling head (6). The pulling head (6) can contact with the lug (3), so as to drive the draw bar (2) to rotate when returning, and limit rotation reset of the draw bar (2) after returning. The attachment cover (7) is disposed on the breaker middle cover (1) and presses down the pulling rod (4). When the attachment cover is opened, the draw bar would sprang out and drive the draw bar to rotate, so the breaker is tripped, thereby ensuring personal safety of related personnel when dismounting internal accessories.
Description
Technical field
The utility model relates to breaker technical field, particularly, relates to a kind of uncovering power-off structure of circuit breaker.
Background technology
Conventionally, in low pressure distribution plant, Inturruptor for sub-line used, residual current circuit breaker etc. can be by user's lids that opens the attachment voluntarily, so that the contents such as auxiliary contact, Alarm contactor, shunt release and device for under-voltage releasing equipment to be installed on breaker body.
But, due to the self structure restriction of existing circuit breaker, when user opens circuit breaker accessory lid voluntarily, the state of circuit breaker can not changed, the separating brake that still can normally close a floodgate is detained operation again, thereby cannot guarantee that user's circuit breaker when dismounting contents disconnects.Under closing of power circuit breaker state, easily damage contents during dismounting contents, and make user that electric shock accidents occur, thereby have certain potential safety hazard.
Utility model content
Problem to be solved in the utility model is user in the attachment head of opening circuit breaker during with dismounting annex, circuit-breaker status is still in on-state, thereby there is the technical problem of potential safety hazard, thereby provide a kind of simple in structure, easy for installation, when attachment head is opened, the circuit breaker uncovering power-off structure that circuit breaker can be threaded off.
To achieve these goals, the utility model provides a kind of uncovering power-off structure of circuit breaker, comprises
Circuit breaker middle cover, is provided with installing hole and can be arranged on breaker body; Draw bar, rotates and arranges and can link with the tripping mechanism of circuit breaker, and draw bar has projection; Pull lever, scalable and run through and be arranged in installing hole by elastic component, pull lever has towards the end of projection the head of pulling, pull head can with bump contact, to drive draw bar to rotate when the return, and after return, limit draw bar and rotate and reset; Attachment head, is arranged in circuit breaker and covers, and depresses pull lever.
Described installing hole inside is formed with stop part; One end of described pull lever is shaped to flange-type head, described in the other end is removably connected with, pulls head, and described elastic component is sleeved in described pull lever and between flange-type head and described stop part.
The described head that pulls is greater than the hemispherical nose of described pull lever external diameter for outline.
The bottom surface of the projection of described draw bar is the inclined-plane that is inclined upwardly and extends, and pulls head to contact with this inclined-plane.
The middle part of described projection is formed with the U-shaped groove that runs through this projection, and described pull lever is engaged in U-shaped groove.
Described draw bar is arranged on circuit breaker middle cover or breaker body rotationally.
Technique scheme of the present utility model compared with prior art, has the following advantages:
Circuit breaker uncovering power-off structure of the present utility model, its be arranged on breaker body in cover and be provided with installing hole, scalable running through of pull lever is arranged in installing hole, pull lever has towards the end of draw bar the head of pulling, pull head can with draw bar on bump contact, to drive when the return draw bar to rotate, and after return, limit draw bar and rotate reset, and attachment head is arranged in circuit breaker and covers, and depress pull lever, because attachment head is pushed down pull lever, make elastic component in compressive state, pull head not with bump contact, now, circuit breaker can normally carry out switching operation.While covering when opening the attachment, pull lever will eject under the effect of elastic component, pulls head will contact boss, and drive draw bar to rotate, thereby the tripping mechanism of circuit breaker is threaded off, make circuit breaker in trip status, simultaneously, after pull lever return, pull head also to contact on projection, to limit draw bar, rotate reset, before covering attachment head, circuit breaker will be always in trip status, thereby guarantees the personal safety of related personnel when dismounting contents.
Circuit breaker uncovering power-off structure of the present utility model, it pulls head to be greater than the hemispherical nose of pull lever external diameter for outline, and the bottom surface with the projection that pulls head to contact of draw bar is the inclined-plane that is inclined upwardly and extends, like this, the hemispherical nose part outstanding with respect to pull lever will contact with the ramped bottom surface of projection, thereby can more easily drive draw bar to rotate, simultaneously, after pull lever return, more easily make the front end of projection contact with hemispherical nose, thereby restriction draw bar rotate reset.
Accompanying drawing explanation
For the content of utility model is more easily expressly understood, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein,
Fig. 1 represents the sectional block diagram of the circuit breaker uncovering power-off structure that the utility model embodiment provides;
Fig. 2 represents the three-dimensional structure diagram contacting with draw bar after the pull lever of circuit breaker uncovering power-off structure is depressed by attachment head;
Fig. 3 represents the three-dimensional structure diagram contacting with draw bar after the pull lever return of circuit breaker uncovering power-off structure.
Description of reference numerals
1-circuit breaker middle cover, 2-draw bar, 3-projection, 4-pull lever, 5-elastic component, 6-pulls head, 7-attachment head, 8-flange-type head, 9-U type groove, the bottom surface of 31-projection.
Embodiment
Below in conjunction with accompanying drawing, describe the uncovering power-off structure of the circuit breaker that embodiment of the present utility model provides in detail.
As shown in Figure 1,2 and 3, the uncovering power-off structure of described circuit breaker comprises circuit breaker middle cover 1, draw bar 2, pull lever 4 and attachment head 7, wherein,
Circuit breaker middle cover 1 is provided with installing hole, and circuit breaker middle cover 1 can be arranged on breaker body; Draw bar 2 rotates and arranges and can link with the tripping mechanism of circuit breaker, can drive the tripping mechanism of circuit breaker to thread off when draw bar 2 rotates, and has projection 3 on draw bar 2; Pull lever 4 is scalable and run through and be arranged in installing hole by elastic component 5, and pull lever 4 has towards the end of projection and pulls 6, pulls 6 can contact with projection 3, to drive draw bar 2 to rotate when the return, and after return, limits draw bar 2 and rotates and reset; Attachment head 7 is arranged on circuit breaker middle cover 1, and depresses pull lever 4, after attachment head 7 is arranged on circuit breaker middle cover 1, will depress pull lever 4, makes elastic component 5 in compressive state simultaneously.
Like this, consider safe factor, when circuit breaker needs uncovering power-off function, circuit breaker uncovering power-off structure of the present utility model can be arranged on circuit breaker.When attachment head is not opened, pull head not with bump contact, now, circuit breaker can carry out normal divide-shut brake and detain operation again, and while covering when opening the attachment, pull lever will pop up under the effect of elastic component, pull head with bump contact simultaneously and drive draw bar to rotate, making circuit breaker tripping, after pull lever return, projection is pulling conflict on head, now, while not depressing pull lever, pull head will stop that draw bar rotates reset, thereby make circuit breaker in trip status, guarantee related personnel's personal safety.
Further, described installing hole inside is formed with stop part; One end of described pull lever 4 is shaped to flange-type head 8, described in being removably connected with, the other end pulls 6, described elastic component 5, for example spring housing is contained in described pull lever 4 and between flange-type head 8 and described stop part, conflict on dome type head 8 in the one end that is spring, the other end is conflicted on described stop part, thereby pull lever is telescopically arranged in installing hole.
As shown in Figure 2, described in, pull 6 to be greater than the hemispherical nose of described pull lever 4 external diameters for outline.Meanwhile, the inclined-plane of the bottom surface of the projection 3 of described draw bar 2 31 for being inclined upwardly and extending, pulls 6 to contact with this inclined-plane.Like this, the hemispherical nose part outstanding with respect to the excircle of pull lever will contact with this inclined-plane, thereby when pull lever pops up, can more easily on the bottom surface 31 of this inclination, slide, to reach the front end of projection 3, conflict on the periphery of this hemispherical nose, specifically as shown in Figure 3.
Further, the middle part of described projection 3 is formed with the U-shaped groove 9 that runs through this projection, and described pull lever 4 is engaged in U-shaped groove 9, and like this, the end face of hemispherical nose will coordinate with this U-shaped groove 9, to realize both stable sliding contacts.
In addition, draw bar 2 is arranged on circuit breaker middle cover 1 or breaker body rotationally.
At this; those skilled in the art it will be appreciated that; under the enlightenment of said structure; protection range of the present utility model is not limited to the combination that pulls head and the projection of draw bar of pull lever; as long as can realize, open the attachment after lid; can drive draw bar to rotate, make the function of circuit breaker tripping, and the structure that can realize such function all belongs to protection range of the present utility model.
The course of work below in conjunction with this circuit breaker uncovering power-off structure of Fig. 1-3 explanation:
Assembling mode: by this uncovering power-off Standard on circuit breaker time, first elastic component 5 is sleeved in pull lever, pull lever is arranged in the installing hole of circuit breaker middle cover, circuit breaker middle cover is covered on breaker body, draw bar is rotated to (in the interface shown in Fig. 2, draw bar 2 clockwise rotates), so that pull lever is blocked draw bar 2, reset, now, circuit breaker cannot fasten lock again, covers subsequently attachment head again, and attachment head will be depressed pull lever, now, draw bar is by return.
Operating principle: after this Standard is good, because attachment head is pushed down pull lever, make pull lever pull head not with the bump contact of draw bar, now, circuit breaker is divide-shut brake normally.After the lid that opens the attachment, pull lever will pop up under the effect of elastic component, and the head that pulls of pull lever contacts the bottom surface of the projection with draw bar, and driving draw bar to rotate, draw bar rotates and drives circuit breaker tripping, as shown in Figure 3, after pull lever return, the front end of projection is pulling on the outer surface of head conflicting, like this, and before pull lever is not depressed again, pull head will withstand projection, make draw bar cannot rotate reset, now, circuit breaker cannot fasten lock again.After attachment head covers again, pull lever will be depressed, and now, draw bar just rotatably resets.
Obviously, above-described embodiment is only for example is clearly described, not the restriction to execution mode.Concerning those of ordinary skill in the field, also can make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And among the protection range that the apparent variation of being extended out thus or change are still created in the utility model.
Claims (6)
1. a uncovering power-off structure for circuit breaker, is characterized in that, comprises
Circuit breaker middle cover (1), is provided with installing hole and can be arranged on breaker body;
Draw bar (2), rotates and arranges and can link with the tripping mechanism of circuit breaker, and draw bar (2) has projection (3);
Pull lever (4), scalable and run through and be arranged in installing hole by elastic component (5), pull lever (4) towards the end of projection, have pull head (6), pull head (6) to contact with projection (3), to drive when the return draw bar (2) to rotate, and after return, limit draw bar (2) and rotate and reset;
Attachment head (7), is arranged on circuit breaker middle cover (1) upper, and depresses pull lever (4).
2. the uncovering power-off structure of circuit breaker according to claim 1, is characterized in that, described installing hole inside is formed with stop part;
One end of described pull lever (4) is shaped to flange-type head (8), pulls head (6) described in the other end is removably connected with, and described elastic component (5) is sleeved on described pull lever (4) and goes up and be positioned between flange-type head (8) and described stop part.
3. the uncovering power-off structure of circuit breaker according to claim 2, is characterized in that, described in pull head (6) for outline is greater than the hemispherical nose of described pull lever (4) external diameter.
4. according to the uncovering power-off structure of the circuit breaker described in claim 1-3 any one, it is characterized in that the inclined-plane of the bottom surface (31) of the projection (3) of described draw bar (2) for being inclined upwardly and extending pulls head (6) to contact with this inclined-plane.
5. the uncovering power-off structure of circuit breaker according to claim 4, is characterized in that, the middle part of described projection (3) is formed with the U-shaped groove (9) that runs through this projection, and described pull lever (4) is engaged in U-shaped groove (9).
6. the uncovering power-off structure of circuit breaker according to claim 1, is characterized in that, draw bar (2) is arranged on circuit breaker middle cover (1) or breaker body rotationally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746008.3U CN203536251U (en) | 2013-11-21 | 2013-11-21 | Cover opening power-off structure of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746008.3U CN203536251U (en) | 2013-11-21 | 2013-11-21 | Cover opening power-off structure of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536251U true CN203536251U (en) | 2014-04-09 |
Family
ID=50422432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320746008.3U Expired - Lifetime CN203536251U (en) | 2013-11-21 | 2013-11-21 | Cover opening power-off structure of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536251U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039199A (en) * | 2017-05-22 | 2017-08-11 | 珠海格力电器股份有限公司 | The cut-off structure of maintenance door and new blower fan |
| CN107240534A (en) * | 2017-08-15 | 2017-10-10 | 德力西电气有限公司 | A kind of breaker is uncapped protection mechanism and breaker |
-
2013
- 2013-11-21 CN CN201320746008.3U patent/CN203536251U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039199A (en) * | 2017-05-22 | 2017-08-11 | 珠海格力电器股份有限公司 | The cut-off structure of maintenance door and new blower fan |
| CN107039199B (en) * | 2017-05-22 | 2019-12-17 | 珠海格力电器股份有限公司 | Power-off structure of access door and new fan |
| CN107240534A (en) * | 2017-08-15 | 2017-10-10 | 德力西电气有限公司 | A kind of breaker is uncapped protection mechanism and breaker |
| CN107240534B (en) * | 2017-08-15 | 2020-01-14 | 德力西电气有限公司 | Circuit breaker uncovering protection mechanism and circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105702535A (en) | Residual-current circuit breaker | |
| CN203536251U (en) | Cover opening power-off structure of breaker | |
| CN201204165Y (en) | Plastic case circuit breaker | |
| CN205881839U (en) | Heavy switching -on device of circuit breaker | |
| CN203536250U (en) | Closable cover opening power-off structure of breaker | |
| CN106328456B (en) | Disengaging deivce of earth leakage and leakage circuit breakers comprising the disengaging deivce of earth leakage | |
| CN203659769U (en) | Tripping device with indicating function and circuit breaker | |
| CN205050796U (en) | Drawer type intelligence circuit breaker of opening safely | |
| CN103594292B (en) | With the knob switch electrical equipment of dropout type instruction | |
| CN103337386B (en) | Large output angle spring operating mechanism | |
| CN205230989U (en) | Operating mechanism of disconnector | |
| CN202796781U (en) | Breaker clamshell anti-electric shock structure | |
| CN204857632U (en) | Tripping device of electric leakage circuit breaker | |
| US10804053B2 (en) | Circuit breaker handle connection structure | |
| CN111224331B (en) | Switch board access hole protection device | |
| CN205206566U (en) | Fire control linkage door closer | |
| CN203445074U (en) | Circuit breaker opening and closing association mechanism | |
| CN2696105Y (en) | Plastic casing circuit breaker capable of assembling with multiple attachment | |
| CN204315485U (en) | A kind of miniature circuit breaker with intertripping device | |
| CN205211679U (en) | Operating mechanism of disconnector | |
| CN203690724U (en) | Protection device for emergency opening button of switchgear | |
| CN209708916U (en) | A kind of breaker of plastic casing waterproofing protection shell | |
| CN107845546B (en) | Reclosing circuit breaker | |
| CN213635865U (en) | Circuit breaker with brake-separating locking device | |
| CN205428857U (en) | Supplementary warning contact means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
|
| CX01 | Expiry of patent term |