CN101931178A - Device for forcibly locking front door of switch cabinet - Google Patents
Device for forcibly locking front door of switch cabinet Download PDFInfo
- Publication number
- CN101931178A CN101931178A CN 201010252612 CN201010252612A CN101931178A CN 101931178 A CN101931178 A CN 101931178A CN 201010252612 CN201010252612 CN 201010252612 CN 201010252612 A CN201010252612 A CN 201010252612A CN 101931178 A CN101931178 A CN 101931178A
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- lock tube
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Abstract
The invention discloses a device for forcibly locking the front door of a switch cabinet, which comprises a cabinet door locking plate, a mechanism bracket, a locking sleeve, a spring, a torsion spring, a shaft, a connecting plate, a lower crank arm and an upper crank arm; when the cabinet door is not closed, the elastic force of the spring in the locking sleeve pushes out the locking sleeve, a square part of the locking sleeve enters a square hole on the side plate of the cabinet, and the locking sleeve cannot rotate so as to restrain the rotation of a rail interlocking shaft by interlocking and lock the operation for a ground switch; and when the cabinet door is closed, and the cabinet door locking plate pushes the locking sleeve inward, the square part of the locking sleeve leaves the square hole of the side plate of the cabinet so that the locking sleeve can rotate, thereby furthering realizing the deblocking of the rail interlocking shaft and the operation for the ground switch. The invention has the characteristics of simple structure, reasonable design, convenient operation, safety and reliability.
Description
Technical field
The present invention relates to a kind of locking device that is applied in the switch cubicle.
Background technology
Armored withdraw type ac metal closing switch gear (abbreviation handcart switch cabinet) is a 10kV electric pressure main flow cabinet type, and when the breaker chamber door was closed, degree of protection was IP4X, and when the breaker chamber door was opened, degree of protection only was IP2X.If opening door operation runs into the unusual or misoperation of equipment situation and causes when internal fault causes arcing, will cause very big injury to personnel.In GB3906-2006, mention and reduce one of measure that under the internal arc situation personnel is provided degree of protection: " only when the Qianmen is closed, just move away to other positions from the service position or move on to the service position by other positions extracting parts out.”
And existing handcart switch cabinet does not possess and force to close door operation, and promptly the breaker chamber door can both operating breaker under the situation of opening, closing, and therefore exists very big potential safety hazard.
Summary of the invention
For the purpose that realizes that the breaker chamber door can not operating breaker when opening, the invention provides a kind of device for forcibly locking front door of switch cabinet, when the switch cubicle charging operation, door, Xiamen all can not be opened in the cabinet, only under the situation that the cabinet door is closed earlier, elements such as ability operating breaker, the technical solution used in the present invention is:
This device comprises the cabinet door lock plate, mechanism rack, lock tube, spring, torsion spring, axle, connecting plate, following connecting lever and last connecting lever, the trailing flank of cabinet door lock plate is fixed on the leading flank of cabinet door, the trailing flank of mechanism rack is fixed on the trailing flank of side cabinet, the left end of lock tube is rectangular lock pin, have rectangular lockhole with the corresponding position of lock pin on the right flank of cabinet door lock plate, the length of lockhole is slightly larger than the length of lock pin, square protrusion part near the centre position on the lock tube is a tetragonal body, have square hole with the corresponding position of tetragonal body on the side cabinet left surface, the length of square hole is slightly larger than the length of tetragonal body, cabinet door lock plate roof pressure lock tube when lock pin enters lockhole, tetragonal body is removed in square hole, the right-hand member of lock tube inwardly offers groove, and lock tube has chute being positioned on the sidewall of groove location, spring is located at the inner end in the groove, the left half of axle be located in the groove and left end near spring, the holding screw that is fixed on the sidewall is connected on the chute, can realize that axle and lock tube rotate simultaneously, and lock tube can move forward and backward along holding screw, the right-hand member of axle passes the right flank of mechanism rack and an end of last connecting lever is fixed, the other end of last connecting lever and the upper end of connecting plate are hinged, one end of following connecting lever is fixed on the chain axle of guide rail, the other end of following connecting lever and the lower end of connecting plate are hinged, torsion spring set is on the axle and between the right flank of the right-hand member of lock tube and mechanism rack, one end of torsion spring is fixed on the axle, and its other end is fixed on the trailing flank of mechanism rack.
Be fixed with axle sleeve on the right flank of mechanism rack, the right-hand member of axle passes axle sleeve, is fixed with the axle elastic washer on the axle, and axle is connected between the right flank of torsion spring and mechanism rack with elastic washer.
The present invention increases the forced blocking that mechanism realizes the equipment cabinet door in the transmission operation on the chain axle of original guide rail, when the cabinet door is not closed, the elastic force of the spring in the lock tube is released lock tube, place, four directions on the lock tube enters the square hole on the side cabinet, lock tube can not rotate, and then the rotation by the chain axle of chain inhibition guide rail, locking is to the operation of earthed switch, when the cabinet door is closed, the cabinet door lock plate pushes inward lock tube, and the square hole on the side cabinet is left at the place, four directions on the lock tube, and lock tube can be rotated, and then the release of the chain axle of realization guide rail, achieve switch operation on the ground.
The present invention has simple in structure, reasonable in design, easy to operate, safe and reliable characteristics.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
The structural representation that Fig. 3 is connected with axle for lock tube of the present invention;
Structural representation when Fig. 4 closes the door blocking for the present invention is in;
Fig. 5 is the left view of Fig. 4;
Structural representation when Fig. 6 opens the door blocking for the present invention is in.
Embodiment
The present invention is further described below in conjunction with accompanying drawing:
As shown in Figure 3, microscler lock tube 3 outer walls are tetragonal body 16 near the square protrusion part in centre position, its size is 18 * 18mm, the left end of lock tube 3 is rectangular lock pin 20, the right-hand member of lock tube 3 is inwardly offered groove 13 from outer wall, and on the sidewall that is positioned at groove 13 positions, offer chute 14, spring 4 is located at the inner end in the groove 13, axle 7 left half insert in the groove 13 and left end near spring 4, the holding screw 15 that is fixed on axle 7 sidewalls is connected on the chute 14, can realize that axle 7 and lock tube 3 rotate simultaneously, and lock tube 3 can move forward and backward by chute 14 along holding screw 15.
As depicted in figs. 1 and 2, cabinet door lock plate 2 be shaped as inverted "L" shaped, have trailing flank and right flank, wherein its trailing flank uses the bolt standard component to be fixed on the leading flank of cabinet door 1, on the right flank of cabinet door lock plate 2, have rectangular lockhole 22 with lock pin 20 corresponding positions, the length of lockhole 22 is slightly larger than the length of lock pin 20, makes lock pin 20 just pass lockhole 22 and rotate 90 can't pass lockhole 22 when spending." mouth " shape that is shaped as of side cabinet 10 is removed the formed shape in the right, have trailing flank, leading flank and left surface, offer the square hole 17 that size is 20 * 20mm with tetragonal body 16 corresponding positions on side cabinet 10 left surfaces, tetragonal body 16 enters square hole 17 can make lock tube 3 rotate." mouth " type that is shaped as of mechanism rack 5 is removed following formed shape, has trailing flank, left surface and right flank, and its trailing flank is fixed on the trailing flank of side cabinet 10.Mechanism rack 5 is positioned at side cabinet 10, and cabinet door lock plate 2 is positioned at the left side of side cabinet 10.Torsion spring 6 is enclosed within on the axle 7 and between the right flank of the right-hand member of lock tube 3 and mechanism rack 5, one end of torsion spring 6 is fixed on the elastic cylindrical pin 21 of axle 7, its other end is fixed on the trailing flank of mechanism rack 5, fixed axis elastic washer 19 on the axle 7, it is connected between the right flank of torsion spring 6 and mechanism rack 5 in order to limit shaft 7, fixed hub 18 on the right flank of mechanism rack 5, the left end of lock tube 3 passes the left surface of mechanism rack 5 and the left surface of side cabinet 10 successively, the right-hand member of axle 7 passes the right flank and the axle sleeve 18 of mechanism rack 5 successively, and fixedly connected with an end of last connecting lever 12 with bolt, the upper end of the other end of last connecting lever 12 and connecting plate 11 is hinged, one end of following connecting lever 8 is fixed on the chain axle 9 of guide rail, and the lower end of the other end of following connecting lever 8 and connecting plate 11 is hinged.
As shown in Figure 4 and Figure 5, before switchgear send electricity, close cabinet door 1 earlier, the left end edge of cabinet door lock plate 2 roof pressure lock tubes 3 makes lock tube 3 slide along axle 7, spring 4 compressions in the lock tube 3, make lock tube 3 in cabinet, move about 6mm, lock pin 20 on the lock tube 3 enters the lockhole 22 on the cabinet door lock plate 2, and tetragonal body 16 on the lock tube 3 and the square hole on the side cabinet 10 17 break away from simultaneously, remove the chain of lock tube 3 and side cabinet 10; Follow operational grounding switch separating brake, the chain axle 9 of guide rail is rotated counterclockwise about 90 degree and locked (the earthed switch operating mechanism is realized locking), successively by down connecting lever 8, connecting plate 11, go up connecting lever 12 and make axle 7 be rotated counterclockwise (torsion spring 6 on the axle 7 reverses and stores restoring force simultaneously), drive axle sleeve 3 rotations simultaneously, make the cabinet door lock plate 2 on the about 90 degree finger lock cabinet doors 1 of lock pin 20 rotations on the axle sleeve 3, realization cabinet door 1 by locking, can not be opened cabinet door 1 in the equipment transmission operation.
As shown in Figure 6, when power failure need be opened 1 maintenance of cabinet door, the operational grounding switch closes a floodgate, the chain axle of combined floodgate rear rail 9 about 90 degree and locked that turn clockwise, by following connecting lever 8, connecting plate 11, last connecting lever 12 turns clockwise axle 7, and (restoring force of torsion spring 6 storages on the axle 7 discharges simultaneously, guarantee that sleeve mechanism does not have clamping stagnation), drive axle sleeve 3 rotations, make behind about 90 degree of lock pin 20 rotations on the axle sleeve 3 and cabinet door lock plate 2 releases on the cabinet door 1, when opening cabinet door 1, cabinet door lock plate 2 on the cabinet door 1 is no longer pushed down lock tube 3, springs 4 in the lock tube 3 discharge elastic force releases lock tube 3, on the lock tube 3 tetragonal body 16 enter square hole 17 on the side cabinet 10, lock tube 3 can not be rotated again, earthed switch can't be operated, the safety when guaranteeing personnel's repair apparatus.
Claims (2)
1. device for forcibly locking front door of switch cabinet, comprise cabinet door lock plate (2), mechanism rack (5), lock tube (3), spring (4), torsion spring (6), axle (7), connecting plate (11), following connecting lever (8) and last connecting lever (12), it is characterized in that: the trailing flank of cabinet door lock plate (2) is fixed on the leading flank of cabinet door (1), the trailing flank of mechanism rack (5) is fixed on the trailing flank of side cabinet (10), the left end of lock tube (3) is rectangular lock pin (20), have rectangular lockhole (21) with the corresponding position of lock pin (20) on the right flank of cabinet door lock plate (2), the length of lockhole (21) is slightly larger than the length of lock pin (20), the square protrusion part that lock tube (3) is gone up near the centre position is tetragonal body (16), have square hole (17) with the corresponding position of tetragonal body (16) on side cabinet (10) left surface, the length of square hole (17) is slightly larger than the length of tetragonal body (16), cabinet door lock plate (2) roof pressure lock tube (3) when lock pin (20) enters lockhole (22), tetragonal body (16) is removed in square hole (17), the right-hand member of lock tube (3) inwardly offers groove (13), and lock tube (3) has chute (14) on the sidewall that is positioned at groove (13) position, spring (4) is located at the inner end in the groove (13), the left half of axle (7) be located in the groove (13) and left end near spring (4), the holding screw (15) that is fixed on axle (7) sidewall is connected on the chute (14), can realize that axle (7) and lock tube (3) rotate simultaneously, and lock tube (3) can move forward and backward along holding screw (15), the right-hand member of axle (7) passes the right flank of mechanism rack (5) and an end of last connecting lever (12) is fixed, the upper end of the other end of last connecting lever (12) and connecting plate (11) is hinged, one end of following connecting lever (8) is fixed on the chain axle of guide rail (9), the lower end of the other end of following connecting lever (8) and connecting plate (11) is hinged, torsion spring (6) is enclosed within that axle (7) is gone up and between the right flank of the right-hand member of lock tube (3) and mechanism rack (5), one end of torsion spring (6) is fixed on the axle (7), and its other end is fixed on the trailing flank of mechanism rack (5).
2. a kind of device for forcibly locking front door of switch cabinet according to claim 1, it is characterized in that: be fixed with axle sleeve (18) on the right flank of mechanism rack (5), the right-hand member of axle (7) passes axle sleeve (18), be fixed with axle elastic washer (19) on the axle (7), axle is connected between the right flank of torsion spring (6) and mechanism rack (5) with elastic washer (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010252612 CN101931178A (en) | 2010-08-10 | 2010-08-10 | Device for forcibly locking front door of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010252612 CN101931178A (en) | 2010-08-10 | 2010-08-10 | Device for forcibly locking front door of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101931178A true CN101931178A (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010252612 Pending CN101931178A (en) | 2010-08-10 | 2010-08-10 | Device for forcibly locking front door of switch cabinet |
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| CN (1) | CN101931178A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093986A (en) * | 2012-12-11 | 2013-05-08 | 中煤张家口煤矿机械有限责任公司 | Mechanical latch mechanism of anti-explosion electromagnetic starter |
| CN103612157A (en) * | 2013-06-25 | 2014-03-05 | 洛阳德平机械设备有限公司 | Safety interlocking method and interlocking device for pipeline en d face beveling machine |
| CN109494601A (en) * | 2018-12-04 | 2019-03-19 | 国家电网有限公司 | A kind of switch-cabinet grounding handcart guide rail |
| CN110247330A (en) * | 2017-05-10 | 2019-09-17 | 河南森源电气股份有限公司 | A kind of switchgear and its valve drive mechanism with self-locking function |
| CN111668062A (en) * | 2019-03-06 | 2020-09-15 | Ls产电株式会社 | Distribution box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201247698Y (en) * | 2008-08-19 | 2009-05-27 | 汕头正超电气集团有限公司 | Grounding switch and cable house door closedown structure of switch cabinet |
| CN201327780Y (en) * | 2009-03-13 | 2009-10-14 | 扬州北辰电气设备有限公司 | Mechanical interlocking device of grounding switch in switch cabinet |
| CN101697402A (en) * | 2009-10-23 | 2010-04-21 | 江苏大全长江电器股份有限公司 | Interlocking device of breaker handcart advancing mechanism |
| CN201750083U (en) * | 2010-08-10 | 2011-02-16 | 山东泰开成套电器有限公司 | Forced blocking device for the front door of switch cabinet |
-
2010
- 2010-08-10 CN CN 201010252612 patent/CN101931178A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201247698Y (en) * | 2008-08-19 | 2009-05-27 | 汕头正超电气集团有限公司 | Grounding switch and cable house door closedown structure of switch cabinet |
| CN201327780Y (en) * | 2009-03-13 | 2009-10-14 | 扬州北辰电气设备有限公司 | Mechanical interlocking device of grounding switch in switch cabinet |
| CN101697402A (en) * | 2009-10-23 | 2010-04-21 | 江苏大全长江电器股份有限公司 | Interlocking device of breaker handcart advancing mechanism |
| CN201750083U (en) * | 2010-08-10 | 2011-02-16 | 山东泰开成套电器有限公司 | Forced blocking device for the front door of switch cabinet |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093986A (en) * | 2012-12-11 | 2013-05-08 | 中煤张家口煤矿机械有限责任公司 | Mechanical latch mechanism of anti-explosion electromagnetic starter |
| CN103093986B (en) * | 2012-12-11 | 2015-08-05 | 中煤张家口煤矿机械有限责任公司 | The mechanical lock of anti-explosion is electromagnetic starter |
| CN103612157A (en) * | 2013-06-25 | 2014-03-05 | 洛阳德平机械设备有限公司 | Safety interlocking method and interlocking device for pipeline en d face beveling machine |
| CN103612157B (en) * | 2013-06-25 | 2017-06-16 | 洛阳德平机械设备有限公司 | One kind is used for Safety interlocking method and interlocking device for pipeline en d face beveling machine |
| CN110247330A (en) * | 2017-05-10 | 2019-09-17 | 河南森源电气股份有限公司 | A kind of switchgear and its valve drive mechanism with self-locking function |
| CN109494601A (en) * | 2018-12-04 | 2019-03-19 | 国家电网有限公司 | A kind of switch-cabinet grounding handcart guide rail |
| CN109494601B (en) * | 2018-12-04 | 2024-04-19 | 国家电网有限公司 | Switch cabinet grounding handcart guide rail |
| CN111668062A (en) * | 2019-03-06 | 2020-09-15 | Ls产电株式会社 | Distribution box |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101229 |