CN201584319U - Anti-maloperation locking device of medium-pressure switch cabinet grounding switch - Google Patents
Anti-maloperation locking device of medium-pressure switch cabinet grounding switch Download PDFInfo
- Publication number
- CN201584319U CN201584319U CN2009203529242U CN200920352924U CN201584319U CN 201584319 U CN201584319 U CN 201584319U CN 2009203529242 U CN2009203529242 U CN 2009203529242U CN 200920352924 U CN200920352924 U CN 200920352924U CN 201584319 U CN201584319 U CN 201584319U
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- CN
- China
- Prior art keywords
- locking
- guide plate
- bracing frame
- interlock guide
- grounding switch
- 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 - Fee Related
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Abstract
Disclosed is an anti-maloperation locking device of a medium-pressure switch cabinet grounding switch. An elongated slotted hole is arranged on a hole wall of a lock shaft hole of a locking cover, a self-locking device is arranged at a lateral face position of the locking cover, a bracing frame on the self-locking device is parallel to the lateral face of the locking cover, an interlocking guide board hinged on the bracing frame is capable of swinging and rotating on the same, the outer side of the bottom portion of the bracing frame is provided with an unlocking bolt in linkage with the bottom portion of the interlocking guide board in a pressing manner, one end, sleeved with a spring, of a retaining pin is moveably hinged with the top end of the interlocking guide board, and the other end of the retaining pin is inserted into the slotted hole. When the grounding switch is closed, the slotted hole justly faces the locking retaining pin, simultaneously after opening of a cable chamber door corresponding to locking, the unlocking bolt mounted on the chamber door withdraws, the retaining pin returns under returning force of the spring and is inserted in the slotted hole to realize locking, in other words prevents a grounding switch operation handle from entering a grounding switch operation hole, thereby preventing the grounding switch from being mistakenly switched off during maintenance process, assuring the grounding switch of a switch device in open-door maintenance to be open, and guaranteeing safe maintenance.
Description
Technical field
The utility model relates to a kind of Medium Voltage Switchgear earthed switch anti-incorrect manipulation deadlock device, specifically be a kind of Medium Voltage Switchgear under inspecting state, promptly the cable vault can prevent artificially a kind of " five is anti-" locking device of separating brake earthed switch by mistake under door opening state.
Background technology
" five is anti-" is the abbreviation that prevents five kinds of electric misoperations in the electric power system, promptly divide by mistake, mistake closes circuit breaker, on-load opening and closing isolating switch, charged extension (closing) ground connection burst at the seams (switch), band earth connection (switch) closes circuit breaker (isolating switch), mistakenly entering charged chamber.Therefore, various switchgear cabinets must have certain operating sequence, otherwise will cause serious consequence even accident occur.For this reason, switch cubicle should have " five is anti-" function.Earthed switch in the Medium Voltage Switchgear as ground protection usefulness, prevents that in maintenance earthed switch from by the mistake separating brake, making to be in no ground protection state in the maintenance process during as overhaul of the equipments, will cause the accident generation, even cause maintainer's injures and deaths.And the switch cubicle of domestic production at present prevents in the design of misoperation apparatus still shortcoming to some extent at earthed switch; especially in maintenance, prevent the locking device of earthed switch separating brake; if the maintainer overhauls in equipment; this moment, earthed switch was by the mistake separating brake; switchgear is in no ground protection state, obviously violates the regulation of " five is anti-".Switch cubicle does not design a kind of design that prevents earthed switch mistake switching-off device in maintenance at present, therefore has potential safety hazard at switchgear in whole maintenance process.
The utility model content
For solving the deficiency of present Medium Voltage Switchgear " five anti-" design, the utility model is intended to propose a kind ofly guarantee out that cabinet opens the Medium Voltage Switchgear earthed switch anti-incorrect manipulation deadlock device of chamber door maintenance safety.
The technical scheme that the invention for solving the technical problem adopts is: Medium Voltage Switchgear earthed switch anti-incorrect manipulation deadlock device, contain the locking housing, and it is characterized in that: the hole wall in the lock shaft hole of locking housing is provided with oblon slot; Be provided with one from locking device in locking housing lateral location, bracing frame on locking device and locking housing parallel sided, the interlock guide plate of hinged one rotation thereon on the bracing frame, bracing frame bottom outside are provided with one can push the strike plate of separating of interlock guide plate bottom; Be with backing pin one end of spring and the top of interlock guide plate and be movably hinged, the other end of backing pin inserts slotted eye.
Of the present utility model separate the strike plate dystopy perpendicular to the interlock guide plate, separate the strike plate end be provided with one can press the interlock guide plate the guiding hypotenuse; Interlock guide plate middle part is the U type, and the circular hole in the middle of the both wings of interlock guide plate plugs together with the pivot on bracing frame dual-side edge and is connected; The top of interlock guide plate is provided with U-shaped fork groove, and the end of backing pin is provided with annular groove, and the screens of fork groove forms hinged in annular groove; When separating strike plate to the time perpendicular to interlock guide plate and direction motion, the guiding hypotenuse of separating on the strike plate presses interlock guide plate bottom, interlock guide plate bottom is to the swing of bracing frame bottom, the top pulling of interlock guide plate and its hinge by backing pin withdraw from the slotted eye of locking housing, remove the obstruct of backing pin to locking housing lock shaft hole, foreign object can't insert the lock shaft hole of locking housing, length of spring compressed energy storage; Retreat and separate strike plate, spring drives backing pin and inserts slotted eye again, and the guide plate of pulling interlock simultaneously resets to initial condition.
The beneficial effects of the utility model are: when earthed switch is in "on" position, slotted eye faces the locking backing pin, behind the Men Kaimen of cable vault of corresponding locking this moment, the strike plate of separating that is installed on the door of chamber retreats, and backing pin resets under the restoring force effect of spring and inserts slotted eye and realize locking, promptly stops the earthed switch operating grip to enter the earthed switch handle hole, prevent maintenance process mistake branch ground connection switch, guarantee switchgear in the maintenance of opening the door, earthed switch is in "on" position always, guarantees maintenance safety.
Description of drawings
Fig. 1 is the perspective view of released state of the present utility model;
Fig. 2 is the perspective view of blocking of the present utility model;
Fig. 3 is the front view of the utility model released state;
Fig. 4 is the left view of the utility model released state;
Fig. 5 is the vertical view of the utility model released state;
Fig. 6 is the front view of the utility model blocking;
Fig. 7 is the left view of the utility model blocking;
Fig. 8 is the vertical view of the utility model blocking.
Among the figure: 1. locking housing; 1.1. lock shaft hole; 1.2. slotted eye; 2. from locking device; 2.1. bracing frame; 2.2. pivot; 2.3 interlock guide plate; 2.4. circular hole; 2.5. fork groove; 2.6. backing pin; 2.7. annular groove; 2.8. spring; 3. separate strike plate; 3.1. guiding hypotenuse.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As Fig. 1～Medium Voltage Switchgear earthed switch anti-incorrect manipulation deadlock device shown in Figure 8, by locking housing 1, conciliate strike plates 3 from locking device 2 and form.The hole wall in the lock shaft hole 1.1 of locking housing 1 is provided with oblon slot 1.2, locking housing 1 is according to the closing of switch cabinet grounding switch, separating brake situation, choose slotted eye 1.2 towards locking housing 1 being installed on the earthed switch operating axis supporting seat, installment state when the installment state when slotted eye 1.2 positions shown in Figure 1 are the switch cabinet grounding switch separating brake, slotted eye 1.2 positions shown in Figure 2 are the switch cabinet grounding switch combined floodgate.Fix one from locking device 2 in locking housing 1 lateral location, bracing frame 2.1 and locking housing 1 parallel sided on locking device 2, and be installed on the correspondence position of earthed switch installation place, bracing frame 2.1 middle part dual-sides are along being provided with pivot 2.2, interlock guide plate 2.3 middle parts are the U type, be provided with circular hole 2.4 in the middle of the both wings of interlock guide plate 2.3, pivot 2.2 and circular hole 2.4 plugged together interlock guide plate 2.3 is hinged on the bracing frame 2.1, make that interlock guide plate 2.3 can be around bracing frame 2.1 rotations, the end that is with backing pin 2.6 1 ends of spring 2.8 is provided with annular groove 2.7, the top of interlock guide plate 2.3 is provided with the fork groove 2.5 of U-shaped, 2.5 screens of fork groove form in annular groove 2.7 and are movably hinged, and the other end of backing pin 2.6 inserts slotted eye 1.2.Bracing frame 2.1 bottom outside be provided with a dystopy perpendicular to interlock guide plate 2.3 separate strike plate 3, separate strike plate 3 roots and be installed on the corresponding cabinet door with the earthed switch locking, separate strike plate 3 ends and be provided with one and can press the guiding hypotenuse 3.1 of interlock guide plate 2.3 bottoms; Above-mentionedly finish the assembling of the utility model on switch cubicle.
Describe operation principle of the present utility model and concrete enforcement action below in detail.
As Fig. 1, Fig. 3～Figure 5 shows that released state of the present utility model; The cabinet door of separating strike plate 3 is installed closes the door when locking, the guiding hypotenuse 3.1 of separating strike plate 3 presses the lower end of stirring interlock guide plate 2.3, make interlock guide plate 2.3 lower ends rotary oscillation certain amplitude to the right, and interlock guide plate 2.3 upper ends rely on two pivots 2.2 of bracing frame 2.1 both sides to anticlockwise, the locking backing pin 2.6 that the 2.3 upper ends pulling of interlock guide plate is movably hinged with it is moved to the left, spring 2.8 is compressed energy storage, locking backing pin 2.6 is shifted out from locking housing 1, realize release, be the lock shaft hole 1.1 that the earthed switch operating grip can insert locking housing 1, can allow operating grip to enter earthed switch handle hole (hexagonal screw) rotation locking housing 1 and carry out the earthed switch branch, closing operation.
As Fig. 2, Fig. 6～Figure 8 shows that blocking of the present utility model; Having the cabinet door of separating strike plate 3 opens the door when earthed switch closes a floodgate, be that switch cubicle is in the inspecting state that opens the door, separate strike plate 3 and break away from interlock guide plate 2.3 lower ends, spring 2.8 resets under self restoring force effect, make locking backing pin 2.6 insert the slotted eye 1.2 of locking housing 1, also drive simultaneously interlock guide plate 2.3 and reset, realize locking, promptly the earthed switch operating grip can't insert handle hole and carries out earthed switch branch, closing operation.
Claims (4)
1. Medium Voltage Switchgear earthed switch anti-incorrect manipulation deadlock device contains the locking housing, it is characterized in that: the hole wall in the lock shaft hole of locking housing is provided with oblon slot; Be provided with one from locking device in locking housing lateral location, bracing frame on locking device and locking housing parallel sided, the interlock guide plate of hinged one rotation thereon on the bracing frame, bracing frame bottom outside are provided with one can push the strike plate of separating of interlock guide plate bottom; Be with backing pin one end of spring and the top of interlock guide plate and be movably hinged, the other end of backing pin inserts slotted eye.
2. Medium Voltage Switchgear earthed switch anti-incorrect manipulation deadlock device as claimed in claim 1 is characterized in that: separate the strike plate dystopy perpendicular to the interlock guide plate, separate the strike plate end be provided with one can press the interlock guide plate the guiding hypotenuse.
3. Medium Voltage Switchgear earthed switch anti-incorrect manipulation deadlock device as claimed in claim 1 is characterized in that: interlock guide plate middle part is the U type, and the circular hole in the middle of the both wings of interlock guide plate plugs together with the pivot on bracing frame dual-side edge and is connected.
4. Medium Voltage Switchgear earthed switch anti-incorrect manipulation deadlock device as claimed in claim 1 is characterized in that: the top of interlock guide plate is provided with the fork groove of U-shaped, and the end of backing pin is provided with annular groove, and the screens of fork groove forms hinged in annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203529242U CN201584319U (en) | 2009-12-28 | 2009-12-28 | Anti-maloperation locking device of medium-pressure switch cabinet grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203529242U CN201584319U (en) | 2009-12-28 | 2009-12-28 | Anti-maloperation locking device of medium-pressure switch cabinet grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584319U true CN201584319U (en) | 2010-09-15 |
Family
ID=42726330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203529242U Expired - Fee Related CN201584319U (en) | 2009-12-28 | 2009-12-28 | Anti-maloperation locking device of medium-pressure switch cabinet grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584319U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376472A (en) * | 2011-11-24 | 2012-03-14 | 温州新机电器有限公司 | Positive and negative interlock device of front lower door and earthing switch of miniature switch cabinet |
| CN103177887A (en) * | 2011-12-23 | 2013-06-26 | 青岛特锐德电气股份有限公司 | Back locking deivce of metal-enclosed switchgear and metal-enclosed switchgear |
| CN107069464A (en) * | 2017-06-06 | 2017-08-18 | 信阳师范学院 | Switch cubicle and its cabinet door interlock |
| CN107068448A (en) * | 2017-05-27 | 2017-08-18 | 阳泉华盛矿用设备厂有限公司 | A kind of mining multifunctional stacked switch blocking device |
| CN107732692A (en) * | 2017-11-27 | 2018-02-23 | 国家电网公司 | High-tension switch cabinet safety device and its application method |
| CN111342378A (en) * | 2020-04-01 | 2020-06-26 | 江苏核电有限公司 | Temporary unlocking tool and unlocking method for insulation measurement of switch cabinet |
-
2009
- 2009-12-28 CN CN2009203529242U patent/CN201584319U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376472A (en) * | 2011-11-24 | 2012-03-14 | 温州新机电器有限公司 | Positive and negative interlock device of front lower door and earthing switch of miniature switch cabinet |
| CN102376472B (en) * | 2011-11-24 | 2014-02-19 | 温州新机电器有限公司 | Positive and negative interlock device of front lower door and earthing switch of miniature switch cabinet |
| CN103177887A (en) * | 2011-12-23 | 2013-06-26 | 青岛特锐德电气股份有限公司 | Back locking deivce of metal-enclosed switchgear and metal-enclosed switchgear |
| CN103177887B (en) * | 2011-12-23 | 2017-04-12 | 青岛特锐德电气股份有限公司 | Back locking deivce of metal-enclosed switchgear and metal-enclosed switchgear |
| CN107068448A (en) * | 2017-05-27 | 2017-08-18 | 阳泉华盛矿用设备厂有限公司 | A kind of mining multifunctional stacked switch blocking device |
| CN107068448B (en) * | 2017-05-27 | 2019-05-21 | 阳泉华盛矿用设备厂有限公司 | A kind of mining multifunctional stacked switch blocking device |
| CN107069464A (en) * | 2017-06-06 | 2017-08-18 | 信阳师范学院 | Switch cubicle and its cabinet door interlock |
| CN107732692A (en) * | 2017-11-27 | 2018-02-23 | 国家电网公司 | High-tension switch cabinet safety device and its application method |
| CN107732692B (en) * | 2017-11-27 | 2023-08-11 | 国家电网公司 | Safety device of high-voltage switch cabinet and use method thereof |
| CN111342378A (en) * | 2020-04-01 | 2020-06-26 | 江苏核电有限公司 | Temporary unlocking tool and unlocking method for insulation measurement of switch cabinet |
| CN111342378B (en) * | 2020-04-01 | 2024-03-19 | 江苏核电有限公司 | Temporary unlocking tool and method for switch cabinet insulation measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XIAMEN MINGHAN ELECTRIC CO., LTD. Free format text: FORMER NAME: XIAMEN MINGHAN ELECTRICAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 361006, Fujian, Xiamen Province, Huli District, torch hi tech Zone, Pioneering Park, Albert building north two floor, room N207-N208 Patentee after: Xiamen Minghan Electric Co., Ltd. Address before: 361006, Fujian, Xiamen Province, Huli District, torch hi tech Zone, Pioneering Park, Albert building north two floor, room N207-N208 Patentee before: Xiamen Minghan Electrical Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 361101 Fujian province Xiamen torch hi tech Zone (Xiangan) Hong Road Industrial Zone No. 9 Framingham Industrial Park Comprehensive Building 1 floor Patentee after: Xiamen Minghan Electric Co., Ltd. Address before: 361006, Fujian, Xiamen Province, Huli District, torch hi tech Zone, Pioneering Park, Albert building north two floor, room N207-N208 Patentee before: Xiamen Minghan Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20151228 |