CN102368448A - Locking device for restricting switch operation - Google Patents
Locking device for restricting switch operation Download PDFInfo
- Publication number
- CN102368448A CN102368448A CN2011102685724A CN201110268572A CN102368448A CN 102368448 A CN102368448 A CN 102368448A CN 2011102685724 A CN2011102685724 A CN 2011102685724A CN 201110268572 A CN201110268572 A CN 201110268572A CN 102368448 A CN102368448 A CN 102368448A
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- China
- Prior art keywords
- handle
- retainer
- stopper arms
- circular shaft
- switch case
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- 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.)
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention relates to a locking device for restricting a switch operation. The device comprises a switch housing; and a handle that is used for opening and closing and a retainer that is rotatable and is used for preventing rotation of the handle are installed on the switch housing; besides, the retainer includes a stopping arm; a stopping surface is at a front side of the stopping arm and is contacted with a second restriction surface on the handle when the opening is carried out on the handle; and a first restriction surface on the handle is cooperated with a side surface of the stopping arm to restrict the handle motion. In addition, the stopping arm is contacted with an arc side surface on the handle when the closing is carried out on the handle. Beneficial effects of the device provided in the invention are as follows: the structure is simple; the security coefficient is high; the operation is simple; and costs are low.
Description
Technical field
The present invention relates to a kind of limit switch operating locking means that is used for.
Technical background
Along with popularizing of voltage electric equipment products, people have had increasing demand to Electrical Safety, do not allow to prevent other people misoperation under the situation of device for switching combined floodgate in order to satisfy at some.
Prior art mainly adopts a kind of independently locking device that device for switching is locked, and to reach the operation of limit switch electrical equipment, it all exists not enough in management and use.Another kind is the operation that limits handle through a built-in locking device; The patent No. is 200510049392 built-in locking device; Can realize limiting operation, but this locking device is made up of complex structure a plurality of parts to handle; And when the handle closing position, also can lock, bring certain security risk for actual the use.
Summary of the invention
The present invention will solve existing built-in locking device and have security risk and baroque problem, provide a kind of simple in structure, coefficient of safety is high is used for the limit switch operating locking means.
Technical scheme of the present invention:
A kind of limit switch operating locking means that is used for; Comprise switch case; Be equipped with in the said switch case and be used for handle and the rotatable retainer that prevents that handle from rotating that separating brake closes a floodgate; It is characterized in that: said retainer comprises stopper arms, said stopper arms front side be provided with when said handle separating brake with handle on the stop surface that contacts of second limiting faces, the side engagement limits handle motion of first limiting faces on the said handle and stopper arms; Said stopper arms is when said handle closes a floodgate and the circular arc contacts side surfaces on the handle.
Further, be provided with the spring that the locking retainer is used between said retainer and the switch case, an end of said spring is connected on the stopper arms, and its other end is connected on the switch case.
Further, said retainer is provided with first circular shaft, and said first circular shaft is installed in the circular hole of switch case; Be provided with second circular shaft between said first circular shaft and the stopper arms, said second circular shaft is installed on the semicircle supporting bracket of switch case; Said second circular shaft is provided with the semicircle boss, and said semicircle boss is installed in the groove between circular hole and the semicircle supporting bracket.
Further, the rear end of the stopper arms of said retainer is provided with first standstill face, the front side on said semicircle supporting bracket right side be provided with one cooperate spline with first standstill face second standstill face.
Further, the outside end face of said first circular shaft is provided with sagittate groove, is provided with the cue mark of the operating state of expression retainer on the said switch case in the both sides of groove.
When further, said handle is provided with handle combined floodgate variation lock with the boss of stopper arms release.
Operation principle of the present invention: when handle during in the separating brake position; The rotation retainer makes the stop surface of stopper arms front end contact with second limiting faces of handle; First limiting faces of handle and the contacts side surfaces of stopper arms, stopper arms has stopped handle, and handle can't be operated.Stopper arms keeps lock-out state under the effect of spring.
The reverse rotation retainer overlaps with second standstill face on the switch case up to first standstill face on the retainer, and retainer stops operating, and under the effect of spring, retainer keeps released state, but this moment, handle was in the released state free operant.
When handle was in closing position, during with the retainer steering tiller, the circular arc contacts side surfaces of the front end of stopper arms and handle can't limit for handle, and handle can normal running.If this moment, handle was wanted separating brake, can push retainer to unlocked position through the boss on the handle.
During operation, can confirm that retainer is in released state or lock-out state through the arrow points of the arrow shaped groove on the first circular shaft outer face of observing retainer.
Retainer is staggered through semicircle boss and semicircle supporting bracket, has limited the axial motion of retainer.
Beneficial effect of the present invention: simple in structure, coefficient of safety, easy to operate, cost is low.
Description of drawings
Fig. 1 is the not structural representation during locking of handle separating brake of the present invention.
Structural representation when Fig. 2 is a handle separating brake locking of the present invention.
Fig. 3 is a handle of the present invention structural representation when closing a floodgate.
Fig. 4 is the structural representation one of retainer of the present invention.
Fig. 5 is the structural representation two of retainer of the present invention.
Fig. 6 is the part-structure sketch map of switch case of the present invention.
Fig. 7 is the structural representation of handle of the present invention.
Embodiment
With reference to accompanying drawing 1-7; A kind of limit switch operating locking means that is used for; Comprise switch case 3, the handle 4 and the rotatable retainer 1 that prevents that handle 4 from rotating that are used for the separating brake combined floodgate are installed in the said switch case 3, said retainer 1 comprises stopper arms 15; Said stopper arms 15 front sides be provided with when said handle 4 separating brakes with handle 4 on the stop surface 14 that contacts of second limiting faces 42, side engagement limits handle 4 motions of first limiting faces 41 on the said handle 4 and stopper arms 15; Said stopper arms 15 when said handle 4 closes a floodgate with handle 4 on circular arc side 44 contact.
Be provided with the spring 2 of locking retainer 1 usefulness between said retainer 1 and the switch case 3, an end of said spring 2 is connected on the stopper arms 15, and its other end is connected on the switch case 3.
Said retainer 1 is provided with first circular shaft 11, and said first circular shaft 11 is installed in the circular hole 31 of switch case 3; Be provided with second circular shaft 13 between said first circular shaft 11 and the stopper arms 15, said second circular shaft 13 is installed on the semicircle supporting bracket 32 of switch case 3; Said second circular shaft 13 is provided with semicircle boss 12, and said semicircle boss 12 is installed in the groove between circular hole 31 and the semicircle supporting bracket 32.
The rear end of the stopper arms 15 of said retainer 1 is provided with first standstill face 16, the front side on said semicircle supporting bracket 32 right sides be provided with one cooperate spline with first standstill face 16 second standstill face 33.
The outside end face of said first circular shaft 11 is provided with sagittate groove 17, is provided with the cue mark of the operating state of expression retainer 1 on the said switch case in the both sides of groove 17.
When said handle 4 is provided with handle 4 combined floodgate variation locks with the boss 43 of stopper arms 15 releases.
Operation principle of the present invention: when handle 4 during in the separating brake position; Rotation retainer 1 makes the stop surface 14 of stopper arms 15 front ends contact with second limiting faces 42 of handle 4; First limiting faces 41 of handle 4 and the contacts side surfaces of stopper arms 15; Stopper arms 15 has stopped handle 4, and handle 4 can't be operated.Stopper arms 15 keeps lock-out state under the effect of spring 2.
When handle 4 was in closing position, during with retainer 1 steering tiller 4, the front end of stopper arms 15 contacted with the circular arc side 44 of handle 4, can't limit for handle 4, and handle 4 can normal running.If this moment, handle 4 was wanted separating brake, can push retainer 1 to unlocked position through the boss on the handle 4 43.
During operation, can confirm that retainer 1 is in released state or lock-out state through the arrow points of the arrow shaped groove 17 on first circular shaft, 11 outer faces of observing retainer 1.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; Protection scope of the present invention should not be regarded as and only limit to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (6)
1. one kind is used for the limit switch operating locking means; Comprise switch case; Be equipped with in the said switch case and be used for handle and the rotatable retainer that prevents that handle from rotating that separating brake closes a floodgate; It is characterized in that: said retainer comprises stopper arms, said stopper arms front side be provided with when said handle separating brake with handle on the stop surface that contacts of second limiting faces, the side engagement limits handle motion of first limiting faces on the said handle and stopper arms; Said stopper arms is when said handle closes a floodgate and the circular arc contacts side surfaces on the handle.
2. a kind of limit switch operating locking means that is used for according to claim 1; It is characterized in that: be provided with the spring that the locking retainer is used between said retainer and the switch case; One end of said spring is connected on the stopper arms, and its other end is connected on the switch case.
3. a kind of limit switch operating locking means that is used for according to claim 1 and 2, it is characterized in that: said retainer is provided with first circular shaft, and said first circular shaft is installed in the circular hole of switch case; Be provided with second circular shaft between said first circular shaft and the stopper arms, said second circular shaft is installed on the semicircle supporting bracket of switch case; Said second circular shaft is provided with the semicircle boss, and said semicircle boss is installed in the groove between circular hole and the semicircle supporting bracket.
4. a kind of limit switch operating locking means that is used for according to claim 3; It is characterized in that: the rear end of the stopper arms of said retainer is provided with first standstill face, the front side on said semicircle supporting bracket right side be provided with one cooperate spline with first standstill face second standstill face.
5. a kind of limit switch operating locking means that is used for according to claim 4; It is characterized in that: the outside end face of said first circular shaft is provided with sagittate groove, is provided with the cue mark of the operating state of expression retainer on the said switch case in the both sides of groove.
6. a kind of limit switch operating locking means that is used for according to claim 5 is characterized in that: when said handle is provided with handle combined floodgate variation lock with the boss of stopper arms release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102685724A CN102368448B (en) | 2011-09-13 | 2011-09-13 | Locking device for restricting switch operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102685724A CN102368448B (en) | 2011-09-13 | 2011-09-13 | Locking device for restricting switch operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102368448A true CN102368448A (en) | 2012-03-07 |
| CN102368448B CN102368448B (en) | 2013-11-27 |
Family
ID=45761007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102685724A Active CN102368448B (en) | 2011-09-13 | 2011-09-13 | Locking device for restricting switch operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102368448B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158457A (en) * | 2015-05-14 | 2016-11-23 | 现代重工业株式会社 | Switch lockout device for chopper |
| CN108269703A (en) * | 2017-12-26 | 2018-07-10 | 浙江正泰电器股份有限公司 | External operation handle |
| CN111817445A (en) * | 2020-09-10 | 2020-10-23 | 天津中新智冠信息技术有限公司 | Power cut and transmission control method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490838A (en) * | 2002-09-26 | 2004-04-21 | 富士电机株式会社 | Circuit breaker |
| CN1835159A (en) * | 2005-03-17 | 2006-09-20 | 正泰集团股份有限公司 | Action locking gear of isolation switch |
| EP1918952A2 (en) * | 2006-10-31 | 2008-05-07 | Siemens Aktiengesellschaft, A German Corporation | Ground fault circuit interrupter |
| CN101533745A (en) * | 2008-03-12 | 2009-09-16 | 浙江正泰电器股份有限公司 | Device for indicating failure of electric apparatus |
| CN202221721U (en) * | 2011-09-13 | 2012-05-16 | 上海诺雅克电气有限公司 | Locking device used for limiting switch operation |
-
2011
- 2011-09-13 CN CN2011102685724A patent/CN102368448B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490838A (en) * | 2002-09-26 | 2004-04-21 | 富士电机株式会社 | Circuit breaker |
| CN1835159A (en) * | 2005-03-17 | 2006-09-20 | 正泰集团股份有限公司 | Action locking gear of isolation switch |
| EP1918952A2 (en) * | 2006-10-31 | 2008-05-07 | Siemens Aktiengesellschaft, A German Corporation | Ground fault circuit interrupter |
| CN101533745A (en) * | 2008-03-12 | 2009-09-16 | 浙江正泰电器股份有限公司 | Device for indicating failure of electric apparatus |
| CN202221721U (en) * | 2011-09-13 | 2012-05-16 | 上海诺雅克电气有限公司 | Locking device used for limiting switch operation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158457A (en) * | 2015-05-14 | 2016-11-23 | 现代重工业株式会社 | Switch lockout device for chopper |
| CN108269703A (en) * | 2017-12-26 | 2018-07-10 | 浙江正泰电器股份有限公司 | External operation handle |
| CN111817445A (en) * | 2020-09-10 | 2020-10-23 | 天津中新智冠信息技术有限公司 | Power cut and transmission control method and system |
| CN111817445B (en) * | 2020-09-10 | 2020-12-18 | 天津中新智冠信息技术有限公司 | Power cut and transmission control method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102368448B (en) | 2013-11-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120307 Assignee: ZHEJIANG CHINT ELECTRICS Co.,Ltd. Assignor: SHANGHAI NOARK ELECTRIC Co.,Ltd. Contract record no.: X2021330000593 Denomination of invention: A locking device for limiting switch operation Granted publication date: 20131127 License type: Common License Record date: 20211025 |