CN103367054B - The actuating mechanism of isolating switch - Google Patents
The actuating mechanism of isolating switch Download PDFInfo
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- CN103367054B CN103367054B CN201210086513.XA CN201210086513A CN103367054B CN 103367054 B CN103367054 B CN 103367054B CN 201210086513 A CN201210086513 A CN 201210086513A CN 103367054 B CN103367054 B CN 103367054B
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- connecting rod
- handle
- upper connecting
- isolating switch
- dynamic contact
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Abstract
The present invention discloses the actuating mechanism of a kind of isolating switch, comprises handle, upper connecting rod and dynamic contact, drives upper connecting rod and dynamic contact to rotate when a handle is rotated, it is achieved to close a floodgate or point lock; Also comprising tripping and snap close, when tripping is separated with snap close, upper connecting rod and dynamic contact rotate, it is achieved point lock; Not having transom between described handle and upper connecting rod, when dividing lock, handle and upper connecting rod independently rotate separately; Protruding a swing arm on handle, when rotating handle and close a floodgate, the lower end of swing arm contacts with the upper surface of upper connecting rod and sliding friction occurs, and connecting rod and dynamic contact are rotated. Present invention eliminates the transom between handle and upper connecting rod, during combined floodgate, the swing arm that handle protrudes can contact with upper connecting rod, link work in promotion; When dividing lock, handle and upper connecting rod can independently rotate separately, there is not friction or restriction each other, can not mutually disturb, thus improve the breaking speed of isolating switch.
Description
Technical field
The present invention relates to the actuating mechanism that isolating switch realizes divide-shut brake motion, belong to low-voltage apparatus field.
Background technology
At present, the actuating mechanism of common small-sized isolating switch is generally made up of handle, U shape connecting rod, transmission rod, dynamic contact, tripping and snap close etc., when pulling handle, is driven transmission rod and the motion of dynamic contact by U shape connecting rod, contact is made to contact with static contact or be separated, it is achieved to close a floodgate or point lock; When tripping mechanism makes the tripping being interlocked mutually and snap close free, actuating mechanism also can action, contact is separated, it is achieved point lock with static contact.
Such as Chinese utility model patent 201020506403.0 discloses a kind of connection structure of breaker handle, comprising handle coupling shaft, be socketed in described handle coupling shaft bottom for the spring of reseting handle, the U shape connecting rod etc. that is connected between handle and transmission rod, handle need to drive transmission rod and the motion of dynamic contact by U shape connecting rod.
Its breaking capacity is had decisive impact by the actuating mechanism of isolating switch and arc suppressing apparatus, such as, due to the restriction of mechanism arrangement and arc suppressing apparatus, the breaking capacity of conventional C45 Series Circuit Breakers is 63A/230V, isolating switch is when dividing disconnected, and the proper time of actuating mechanism motion is longer. Being proved by test, the mechanism of conventional C45 product is generally 6-8ms the proper time, and this deposits big difficulty relatively when inhaling and go out electric arc.
Summary of the invention
The technical problem to be solved in the present invention is to provide the actuating mechanism of a kind of isolating switch, can improve the breaking speed of isolating switch, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: the actuating mechanism of a kind of isolating switch, comprises handle, upper connecting rod and dynamic contact, drives upper connecting rod and dynamic contact to rotate when a handle is rotated, it is achieved to close a floodgate or point lock; Also comprising tripping and snap close, when tripping is separated with snap close, upper connecting rod and dynamic contact rotate, it is achieved point lock; Not having transom between described handle and upper connecting rod, when dividing lock, handle and upper connecting rod independently rotate separately; Protruding a swing arm on described handle, when rotating handle and close a floodgate, the lower end of described swing arm contacts with the upper surface of upper connecting rod and sliding friction occurs, and connecting rod and dynamic contact are rotated.
Preferably, the rear surface of described swing arm is smooth curved surface.
Preferably, described swing arm and handle are one-body molded.
Preferably, described handle being connected with handle return spring, handle is applied the torque rotated to Fen Zha direction by described handle return spring.
Preferably, described upper connecting rod being connected with connecting rod return spring, upper connecting rod is applied the torque rotated to Fen Zha direction by described upper connecting rod return spring.
Preferably, also comprising a support, described dynamic contact is rotatably connected on support.
Present invention eliminates the transom between handle and upper connecting rod (such as U shape connecting rod), handle and upper connecting rod are separated, during combined floodgate, the swing arm that handle protrudes can contact with upper connecting rod, link work in promotion; When circuit break down and thread off point lock time, handle and upper connecting rod can independently rotate separately, there is not friction or restriction each other, can not mutually disturb, thus improve the breaking speed of isolating switch.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the schematic diagram of actuating mechanism in combined floodgate state of isolating switch of the present invention.
Fig. 2 is the schematic diagram of actuating mechanism at gate-dividing state of isolating switch of the present invention.
Embodiment
As shown in Figure 1, the actuating mechanism of isolating switch of the present invention comprises handle 1, upper connecting rod 3 and dynamic contact 7 and is arranged in pedestal 2, but does not have U shape connecting rod between handle 1 and upper connecting rod 3, does not also arrange other transom, but protrudes a swing arm 11 from handle. In the preferred embodiment, this swing arm 11 is integrated with handle 1, and dynamic contact 7 is rotatably connected on a support 6.
Under gate-dividing state, as shown in Figure 2, handle 1 comprises swing arm 11 and does not all contact with upper connecting rod 3, is separated completely.
Only when rotating handle and close a floodgate, clockwise direction such as Fig. 1 rotates handle 1, the lower end 111 of swing arm just can contact with the upper surface 31 of upper connecting rod and sliding friction occurs, thus promote upper connecting rod 3 to rotate, snap close 5, support 6 is driven to move together with dynamic contact 7 by connecting rod again, now snap close 5 is detained with tripping 4 and is closed, and finally makes contact 7 and static contact 8 closed together, completes whole making process. Under combined floodgate state, only realize static lock between the lower end 111 of swing arm and the upper surface 31 of upper connecting rod. For the ease of relatively sliding, the surface of the lower end 111 of swing arm is preferably set to smooth curved surface. Visible, in making process, the present invention can realize the function identical with the structure in prior art with U shape connecting rod.
The advantage of the present invention is mainly reflected in point lock process. As shown in Figure 2, when isolating switch divides lock, the thrust that tripping 4 is subject to tripping mechanism rotates clockwise, and causes snap close 5 to be separated with tripping 4, and mechanism unlocks and disconnects. The moment unlocked, connecting rod 3 was rotated counterclockwise a small angle (0.3 degree) before this under the effect of snap close 5, make connecting rod 3 that the lock of handle is only acted on releasing, owing to handle 1 being connected with handle return spring (not shown), handle is applied the torque rotated to Fen Zha direction by handle return spring, therefore handle 1 is independent under the effect of handle return spring rotates, and is back to rapidly a point lock point; Meanwhile, owing to upper connecting rod 3 being connected with upper connecting rod return spring (not shown), upper connecting rod 3 is applied the torque rotated to Fen Zha direction by upper connecting rod return spring, connecting rod 3 is independently rotated by the clockwise direction shown in Fig. 2, drive dynamic contact 7 to open with static contact 8, complete a point lock whole process.In point lock process, owing to handle 1 and upper connecting rod 3 are the cell cube of independent rotation, there is not friction or the possibility of restriction each other, so, opening velocity can obviously rise, and 2ms can shorten in point mechanism that the disconnected time has U shape connecting rod than prior art, thus makes breaking capacity significantly increase.
Claims (5)
1. an actuating mechanism for isolating switch, comprises handle (1), upper connecting rod (3) and dynamic contact (7), drives upper connecting rod (3) and dynamic contact (7) to rotate when handle (1) rotates, it is achieved close a floodgate or point lock; Also comprising tripping (4) and snap close (5), when tripping (4) is separated with snap close (5), upper connecting rod (3) and dynamic contact (7) rotate, it is achieved point lock; It is characterized in that not having transom between described handle (1) and upper connecting rod (3), when dividing lock, handle (1) and upper connecting rod (3) are independent separately to rotate; Also comprise a support (6), described dynamic contact (7) is rotatably connected on support (6), described handle (1) is upper protrudes a swing arm (11), when rotating handle (1) and close a floodgate, the lower end (111) of described swing arm contacts with the upper surface (31) of upper connecting rod and sliding friction occurs, connecting rod (3) is rotated, then drives snap close (5), support (6) and dynamic contact (7) to move together by upper connecting rod.
2. the actuating mechanism of isolating switch according to claim 1, is characterized in that, lower end (111) surface of described swing arm is smooth curved surface.
3. the actuating mechanism of isolating switch according to claim 1, is characterized in that, described swing arm (11) is one-body molded with handle (1).
4. the actuating mechanism of isolating switch according to claim 1, is characterized in that, described handle is connected with handle return spring on (1), and handle (1) is applied the torque rotated to Fen Zha direction by described handle return spring.
5. the actuating mechanism of isolating switch according to claim 1, is characterized in that, described upper connecting rod (3) is connected with connecting rod return spring, and upper connecting rod (3) is applied the torque rotated to Fen Zha direction by described upper connecting rod return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210086513.XA CN103367054B (en) | 2012-03-28 | 2012-03-28 | The actuating mechanism of isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210086513.XA CN103367054B (en) | 2012-03-28 | 2012-03-28 | The actuating mechanism of isolating switch |
Publications (2)
| Publication Number | Publication Date |
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| CN103367054A CN103367054A (en) | 2013-10-23 |
| CN103367054B true CN103367054B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210086513.XA Active CN103367054B (en) | 2012-03-28 | 2012-03-28 | The actuating mechanism of isolating switch |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408466A2 (en) * | 1989-07-11 | 1991-01-16 | Merlin Gerin | Operating mechanism for an electric switch |
| DE10124353A1 (en) * | 2001-05-18 | 2002-12-05 | Siemens Ag | Switch mechanism for protective switch has locking device and release lever integrated into switch handle |
| CN1832082A (en) * | 2005-03-07 | 2006-09-13 | 浙江德力西电器股份有限公司 | Operation mechanism of small circuit breaker |
| CN102034652A (en) * | 2010-12-22 | 2011-04-27 | 上海良信电器股份有限公司 | Operating mechanism for molded case circuit breaker |
| CN202585285U (en) * | 2012-03-28 | 2012-12-05 | 上海良信电器股份有限公司 | Action mechanism of breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201302964Y (en) * | 2008-08-21 | 2009-09-02 | 浙江正泰电器股份有限公司 | A small-size equidirectional series double-breakpoint circuit breaker |
-
2012
- 2012-03-28 CN CN201210086513.XA patent/CN103367054B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408466A2 (en) * | 1989-07-11 | 1991-01-16 | Merlin Gerin | Operating mechanism for an electric switch |
| DE10124353A1 (en) * | 2001-05-18 | 2002-12-05 | Siemens Ag | Switch mechanism for protective switch has locking device and release lever integrated into switch handle |
| CN1832082A (en) * | 2005-03-07 | 2006-09-13 | 浙江德力西电器股份有限公司 | Operation mechanism of small circuit breaker |
| CN102034652A (en) * | 2010-12-22 | 2011-04-27 | 上海良信电器股份有限公司 | Operating mechanism for molded case circuit breaker |
| CN202585285U (en) * | 2012-03-28 | 2012-12-05 | 上海良信电器股份有限公司 | Action mechanism of breaker |
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| Publication number | Publication date |
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| CN103367054A (en) | 2013-10-23 |
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