CN201051477Y - Manual operation machine for breaker - Google Patents
Manual operation machine for breaker Download PDFInfo
- Publication number
- CN201051477Y CN201051477Y CNU2007200402912U CN200720040291U CN201051477Y CN 201051477 Y CN201051477 Y CN 201051477Y CN U2007200402912 U CNU2007200402912 U CN U2007200402912U CN 200720040291 U CN200720040291 U CN 200720040291U CN 201051477 Y CN201051477 Y CN 201051477Y
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- China
- Prior art keywords
- gear
- connecting rod
- frame
- shaft
- slide block
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- Expired - Lifetime
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Abstract
A hand-operated operating mechanism of a circuit breaker belongs to the technical field of low-pressure switch accessories, and comprises a rack, an operating shaft which is mounted on the rack, a link mechanism which is moveably connected with the operating shaft, guided ways which are mutually fixed on the back of the rack in parallel, and slide blocks which are slidably matched with the guided ways. The utility model is characterized in that a gear with a connecting bar eccentric shaft is further provided, the center of the gear is pivoted on the back of the rack through a gear shaft, the connecting bar eccentric shaft is passed through an arc chute on the rack to be moveably connected with the link mechanism, and gear holes which are meshed with teeth on the gear are formed on the slide blocks. The utility model has the advantages that the needed external applied force is constant, a parallelogram structure is jointly formed by the operating shaft, a first connecting bar, a second connecting bar, and the gear shaft, thereby solving the problems of changing force moments, and meanwhile the limited space is fully used, the structure is compact, the slide blocks are rotated through the meshing of the gear and gear holes for eliminating the 'blocking' phenomenon, the reliable performance of the operating mechanism is guaranteed, and the mechanical service life is extended.
Description
Technical field
The utility model relates to a kind of manual-operating mechanism of circuit breaker, is to the improvement of the eccentric manual-operating mechanism of existing circuit breaker, belongs to low tension switch attachment technique field.
Background technology
Usually adopt manual-operating mechanism that the moulded case circuit breaker that is installed in the power distribution cabinet is operated, needs according to the setting of each electric elements in the power distribution cabinet, usually the handle hole on the manual-operating mechanism panel is arranged on the non-central place of whole front panel, is called eccentric manual-operating mechanism.Existing eccentric manual-operating mechanism comprises frame, be located at the operating axis on the frame respectively, linkage and slide block and guiding parts, the linkage two ends flexibly connect with slide block and operating axis respectively, when carrying out manual operation, outside manual operation handle inserts in the handle hole of offering on the operating axis, by linkage applied external force is delivered on the slide block, guiding parts comprises the guided way that is fixed on frame inside parallel to each other, move as straight line along the sliding tray between guided way and frame with guide shoe, thereby drive the action that probes into the circuit breaker handle in the connecting hole on the slide block, finish the combined floodgate of circuit breaker, separating brake/button operation again.When circuit breaker is closed a floodgate, during the operation of the button of separating brake/again, applied external force drives slide block by linkage, the arm of force of the active force on the linkage changes at this moment, particularly when circuit breaker is in combined floodgate or separating brake position, be that linkage is when being positioned at the whole story of its actuating length, the acting force arm of linkage is the shortest, and required applied external force maximum is operated the hardest.Simultaneously, this in-house linkage directly acts on the slide block, drives the circuit breaker handle action by slide block.During operation slide block the active force of connecting rod issue unboiled water square to inclination, the frictional force between the guided way at slide block and its two ends is increased, cause slide block " stuck ", reduced the reliability and the mechanical endurance thereof of manual operating mechanism of breaker.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned existence, a kind of manual operating mechanism of breaker is provided, and its simple in structure, dependable performance has solved the variable force moment problem of eccentric manual-operating mechanism in the past, make rapid operation, and increased the mechanical endurance of mechanism.
The purpose of this utility model reaches like this, a kind of manual-operating mechanism of circuit breaker, the linkage that comprises frame, the rack-mounted operating axis that is used for being connected, flexibly connects with operating axis, the slide block that is fixed on a pair of guided way at frame back in parallel with each other, joins with a pair of guided way cunning with external operation handle, be characterized in: the gear that also includes a band connecting rod eccentric shaft, in the back of frame, the connecting rod eccentric shaft on it flexibly connects with linkage behind the deep-slotted chip breaker that passes on the frame by the gear shaft hub setting at the center of this gear; Be formed with on the described slide block with gear on tooth nibble the gear hole of joining mutually.
Linkage described in the utility model comprises first connecting rod and second connecting rod, one end of second connecting rod flexibly connects by an end of pitman shaft and first connecting rod, and the other end and operating axis flexibly connect, and the other end of first connecting rod flexibly connects by connecting rod eccentric shaft and gear.
The utility model also has additional a pair of extension spring between described slide block and frame.
One end of a pair of extension spring described in the utility model is fixed in a pair of hook of slide block both sides, and the other end is fixed on the hanging hole of frame.
The utility model is by flexibly connecting the rotating gear that is fixed on the frame in a center in the linkage end, on slide block, offer simultaneously the tooth meshed gears hole that is used for gear, so dragging gear by linkage rotates, and then the drive slide block is done rectilinear motion, compare with the structure that acts directly on the slide block by linkage in the prior art, the advantage that has: required applied external force is constant, and constituted a parallel-crank mechanism jointly by operating axis, first connecting rod, second connecting rod, gear shaft, thereby solved the variable force moment problem; Simultaneously, made full use of limited space, compact conformation, by adopting the engagement of gear and gear hole, driving block has been eliminated " stuck " phenomenon, guarantees the dependable performance of operating mechanism and increases mechanical endurance.
Description of drawings
Accompanying drawing is an example structure sketch of the present utility model.
Among the figure: 1. frame, 2. screw, 3. deep-slotted chip breaker, 4. first connecting rod, 5. external operation handle, 6. close a floodgate, the separating brake mark, 7. cue mark, 8. handle hole, 9. pitman shaft, 10. second connecting rod, 11. operating axis, 12. operation axle sleeve, 13. split washer, 14. gear hole, 15. connecting rod eccentric shaft, 16. circuit breaker handle connecting hole, 17. circuit breaker handle, 18. slide block, 19. hook, 20. installing hole, 21. gear, 22. extension spring, 23. guided way, 24. sliding tray, 25. gear bush, 26. gear shaft, 27. hanging hole.
Embodiment
For the auditor that makes Patent Office particularly the public can further understand architectural feature of the present utility model and beneficial effect thereof, the spy is described in detail as follows embodiment of the present utility model in conjunction with the accompanying drawings.But applicant statement is any according to the utility model design and carry out pro forma variation or literal modification, then all should be considered as technical scheme scope disclosed in the utility model.
See also accompanying drawing, operating axis 11 is provided with handle hole 8, is used for inserting this handle hole 8 for external operation handle 5, carries out manual operation.Also be provided with cue mark 7 on the operating axis 11, corresponding with combined floodgate, separating brake mark 6 on being arranged on frame 1, be used to indicate the combined floodgate, separating brake of circuit breaker/detain again state.Operation axle sleeve 12 is riveted on the frame 1, and operating axis 11 is installed on the frame 1 with split washer 13 after passing second connecting rod 10, packing ring, operation axle sleeve 12.Flexibly connect with pitman shaft 9 between second connecting rod 10 and the first connecting rod 4.Gear bush 25 is riveted on the frame 1, and gear shaft 26 has the gear 21 of connecting rod eccentric shaft 15 to be riveted on the gear shaft 26 riveted joint after passing the installing hole 20 at gear bush 25, gear 21 centers.Flexibly connect by connecting rod eccentric shaft 15 between first connecting rod 4 and the gear 21, simultaneously, for the ease of installing and using, offering slotted eye on frame 1 is deep-slotted chip breaker 3, this deep-slotted chip breaker 3 be used for holding join connecting rod eccentric shaft 15 within it portion make arcuate movement.Guided way 23 has a pair of, is fixed on the back of frame 1 abreast with screw 2, and the two ends of slide block 18 probe in the sliding tray 24 of 1 of a pair of guided way 23 and frame, moves as straight line along a pair of guided way 23 with guide shoe 18.Offer on the slide block 6 and be used for probeing into circuit breaker handle connecting hole 16 in it, simultaneously, join, also offer row's strip gear hole 14 at the sidepiece of slide block 6 for the ease of nibbling mutually with the tooth of gear 7 for circuit breaker handle 17.
Please continue to consult accompanying drawing, extension spring 22 described in the utility model has a pair of, and the one end is hung on a pair of hangers 19 that is provided with in slide block 18 both sides, and the other end is hung on a pair of hanging hole of offering on the frame 1 27, a pair of extension spring 22 is arranged in parallel, and provides pulling force at slide block 18 and 1 of frame.When the line failure of circuit breaker place, circuit breaker trip, the pulling force of extension spring 22 help circuit breaker handle 17 and drive the frictional force that slide block 18 overcomes gear 21, move to trip position smoothly.
The utility model is when work, suppose that circuit breaker is in "on" position, at this moment by in the handle hole 8 on the external operation handle 5 insertion operating axis 11, rotate counterclockwise, drivening rod mechanism, and then driven gear 21 rotates counterclockwise, gear 21 drives slide block 18 by the engagement of its tooth portion and gear hole 14, make slide block 18 along guided way 23 downward moving linearlies, drive probes into that the circuit breaker handle in the circuit breaker handle connecting hole 16 17 moves downward together on the slide block 18, reach 90 degree until external operation handle 5 counterclockwise rotations, make circuit breaker finish separating brake, the cue mark on the operating axis 11 7 refers on the separating brake position at this moment.
Claims (4)
1. the manual-operating mechanism of a circuit breaker, comprise frame (1), be installed in the operating axis (11) that being used on the frame (1) is connected with external operation handle, linkage with operating axis (11) flexible connection, be fixed on a pair of guided way (23) at frame (1) back in parallel with each other, with the sliding slide block (18) of joining of a pair of guided way (23), it is characterized in that also including the gear (21) of a band connecting rod eccentric shaft (15), in the back of frame (1), the connecting rod eccentric shaft (15) on it flexibly connects with linkage in deep-slotted chip breaker (3) back of passing on the frame (1) by gear shaft (26) hub setting at the center of this gear (21); Be formed with on the described slide block (18) with gear (21) on tooth nibble the gear hole (14) of joining mutually.
2. the manual-operating mechanism of circuit breaker according to claim 1, it is characterized in that described linkage comprises first connecting rod (4) and second connecting rod (10), one end of second connecting rod (10) flexibly connects by the end of pitman shaft (9) with first connecting rod (4), and the other end and operating axis (11) flexibly connect, and the other end of first connecting rod (4) flexibly connects by connecting rod eccentric shaft (15) and gear (21).
3. the manual-operating mechanism of circuit breaker according to claim 1 is characterized in that also having additional a pair of extension spring (22) between described slide block (18) and frame (1).
4. the manual-operating mechanism of circuit breaker according to claim 3 it is characterized in that an end of described a pair of extension spring (22) is fixed in a pair of hook (19) of slide block (18) both sides, and the other end is fixed on the hanging hole (27) of frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200402912U CN201051477Y (en) | 2007-06-29 | 2007-06-29 | Manual operation machine for breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200402912U CN201051477Y (en) | 2007-06-29 | 2007-06-29 | Manual operation machine for breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201051477Y true CN201051477Y (en) | 2008-04-23 |
Family
ID=39337970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200402912U Expired - Lifetime CN201051477Y (en) | 2007-06-29 | 2007-06-29 | Manual operation machine for breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201051477Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737918A (en) * | 2012-06-20 | 2012-10-17 | 三一重型装备有限公司 | Rotating handle operating device of circuit breaker and circuit breaker control box |
| CN103280346A (en) * | 2013-06-05 | 2013-09-04 | 苏州未来电器有限公司 | Operating handle capable of being replaced and used in breaker electric operating mechanism |
| WO2014206330A1 (en) * | 2013-06-28 | 2014-12-31 | 上海电科电器科技有限公司 | Manually operated device of low-voltage power switch |
| CN105070594A (en) * | 2015-09-07 | 2015-11-18 | 沈阳斯沃电器有限公司 | Alternating-current contactor manual operation mechanism |
| CN106206097A (en) * | 2016-07-30 | 2016-12-07 | 张学衡 | A kind of low tension switch |
| CN112590890A (en) * | 2020-12-09 | 2021-04-02 | 江西安达交通设施有限公司 | Intelligent protective guard of road train intersection for traffic safety |
-
2007
- 2007-06-29 CN CNU2007200402912U patent/CN201051477Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737918A (en) * | 2012-06-20 | 2012-10-17 | 三一重型装备有限公司 | Rotating handle operating device of circuit breaker and circuit breaker control box |
| CN103280346A (en) * | 2013-06-05 | 2013-09-04 | 苏州未来电器有限公司 | Operating handle capable of being replaced and used in breaker electric operating mechanism |
| CN103280346B (en) * | 2013-06-05 | 2016-03-02 | 苏州未来电器股份有限公司 | A kind of for removable operating grip in electric operating mechanism of circuit-breaker |
| WO2014206330A1 (en) * | 2013-06-28 | 2014-12-31 | 上海电科电器科技有限公司 | Manually operated device of low-voltage power switch |
| US9966208B2 (en) | 2013-06-28 | 2018-05-08 | Seari Electric Technology Co., Ltd. | Manual operation device for low voltage switching apparatus |
| CN105070594A (en) * | 2015-09-07 | 2015-11-18 | 沈阳斯沃电器有限公司 | Alternating-current contactor manual operation mechanism |
| CN105070594B (en) * | 2015-09-07 | 2017-04-05 | 沈阳斯沃电器有限公司 | A.C. contactor manual-operating mechanism |
| CN106206097A (en) * | 2016-07-30 | 2016-12-07 | 张学衡 | A kind of low tension switch |
| CN112590890A (en) * | 2020-12-09 | 2021-04-02 | 江西安达交通设施有限公司 | Intelligent protective guard of road train intersection for traffic safety |
| CN112590890B (en) * | 2020-12-09 | 2022-10-21 | 江西安达交通设施有限公司 | Intelligent protective guard of road train intersection for traffic safety |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080423 |