CN111430161A - Lock body structure of secondary pressing plate intelligent miniature pressing plate connecting sheet - Google Patents
Lock body structure of secondary pressing plate intelligent miniature pressing plate connecting sheet Download PDFInfo
- Publication number
- CN111430161A CN111430161A CN202010410450.3A CN202010410450A CN111430161A CN 111430161 A CN111430161 A CN 111430161A CN 202010410450 A CN202010410450 A CN 202010410450A CN 111430161 A CN111430161 A CN 111430161A
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- clamp plate
- body structure
- lock body
- stop block
- rotating shaft
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- 230000002265 prevention Effects 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 230000006872 improvement Effects 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a lock body structure of a secondary pressing plate intelligent micro pressing plate connecting sheet, which is characterized in that a lock shell, a micro motor, an error code prevention sheet and a pressing plate connecting sheet are arranged; the error code prevention sheet and the micro motor are arranged in the lock shell from top to bottom; one end of the pressure plate connecting sheet is fixed on the rotating shaft of the micro motor in a sleeved mode; the clamping joint on the rotating shaft is clamped and limited with the stop block in the fixed end cover; the fixed end cover is also provided with a hole corresponding to the clamping joint; the opening is formed in the lower portion of the stop block and used for achieving extrusion clamping and reverse pushing separation of the clamping connector and the stop block. The invention realizes the clamping positioning and the loosening of the pressing sheet connecting piece and the rotating shaft by correspondingly arranging the clamping joint on the rotating shaft and the stop block of the pressing sheet connecting piece, realizes the positioning rotation and the emergency unlocking of the pressing sheet connecting piece which can be applied to a relay protection device, and has the advantages of ingenious design, simple and practical structure.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment of an electric power system, in particular to a lock body structure of a secondary pressing plate intelligent miniature pressing plate connecting sheet.
Background
In the power transformation operation, the relay protection is the guarantee of reliable and continuous power supply of the power system. The relay protection device is reliable and safe to operate, and besides the functions and performances of the protection device, the prevention of misoperation is a very important measure. The secondary pressing plate is secondary equipment related to the most frequent operation of relay protection, is a bridge and a link of a relay protection device or an automatic device in connection with external wiring, and is related to the function of relay protection and whether an action outlet can normally play a role. When the operation mode of the power system is changed and equipment is overhauled, the pressing plate is usually thrown or retreated, if the pressing plate is thrown or retreated by mistake or is thrown or retreated by leakage, the realization of the relay protection function can be directly influenced, and even the protection is rejected or is mistakenly operated when serious, so that the safe operation of a power grid is influenced.
The clamp plate of protection clamp plate of prior art at present throws, move back by operation personnel manually operation, in actual operation, because throwing of clamp plate, move back improperly, cause relay protection system malfunction, take place during the diastrophism phenomenon, leave serious hidden danger for electric power system's safe operation, consequently, the electronic secondary clamp plate of intelligence of forcing the shutting function has been proposed, drive the lock body structure of clamp plate connection piece through micro motor and rotate, but because the lock body structure of adaptation does not have at present stage, so designed a lock body structure of the miniature clamp plate of secondary clamp plate intelligence connection piece.
Disclosure of Invention
The invention aims to provide a lock body structure of a secondary pressing plate intelligent miniature pressing plate connecting sheet, which is simple and practical in structure.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a lock body structure of a secondary pressing plate intelligent micro pressing plate connecting sheet comprises a lock shell, a micro motor, an error code prevention sheet and a pressing plate connecting sheet; the error code prevention piece and the micro motor are arranged in the lock shell from top to bottom; one end of the pressing plate connecting sheet is fixed on a rotating shaft of the micro motor in a sleeved mode through a fixed end cover; the clamping joint on the rotating shaft is clamped and limited with the stop block in the fixed end cover;
the fixed end cover is also provided with an opening which corresponds to the clamping joint; the opening is formed in the lower portion of the stop block and used for achieving extrusion clamping and reverse pushing separation of the clamping joint and the stop block.
As a further improvement of the invention, a computer key is also arranged; and the computer key is matched with the error-proof chip.
As a further improvement of the present invention, the bayonet joints are arranged on both sides of the rotating shaft in the radial direction through connecting parts; the hook head of the clamping joint is inverted and extends outwards; the upper part of the hook head is abutted and limited with the stop block.
As a further improvement of the invention, the clamping connector is made of plastic.
As a further improvement of the present invention, the fixed end cover is sleeved on the rotating shaft.
As a further improvement of the invention, the fixed end cover is of a cover body structure with an opening at the lower part.
As a further improvement of the invention, two groups of openings are arranged at the lower part of the fixed end cover.
As a further improvement of the invention, the top of the opening is provided with the stop block, and the two side edges are provided with the blocking parts along the axial direction of the rotating shaft.
As a further improvement of the invention, the micro motor is connected in the lock shell in a threaded manner; the lock shell is a cylindrical hollow whole body and is divided into an upper inner cavity and a lower inner cavity, rotating threads are arranged in the upper inner cavity and the lower inner cavity, and an electrode, an error code prevention piece and a chip are arranged in the upper inner cavity of the lock shell in a rotating mode; and a micro motor is arranged in the lower inner cavity of the lock shell.
As a further improvement of the invention, the connecting part extends outwards to realize the dislocation arrangement of the connecting part and the end part of the stop block, and to realize the up-and-down limit of the stop block.
Compared with the prior art, the invention has the beneficial effects that:
the invention realizes the clamping positioning and the loosening of the pressing sheet connecting piece and the rotating shaft by correspondingly arranging the clamping joint on the rotating shaft and the stop block of the pressing sheet connecting piece, realizes the positioning rotation and the emergency unlocking of the pressing sheet connecting piece which can be applied to a relay protection device, and has the advantages of ingenious design, simple and practical structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic illustration of an explosive structure according to the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of the fixing end cap of the present invention clamped with the clamping head;
FIG. 4 is a schematic diagram of the operation of the present invention;
FIG. 5 is a schematic view of the lock housing of the present invention;
FIG. 6 is a schematic structural diagram of a micro-motor according to the present invention;
FIG. 7 is a schematic view of the construction of the platen connecting piece of the present invention;
the reference numbers in the figures illustrate:
1. a lock case; 2. a micro motor; 21. a rotating shaft; 211. a clamping head; 2111. hooking the head; 212. a connecting portion; 3. error code prevention; 4. a pressing plate connecting sheet; 41. fixing an end cover; 411. a stopper; 412. opening a hole; 413. a blocking part; 5. a computer key; 6. an electrode; 7. and (3) a chip.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to fig. 1 to 7, the invention aims to provide a lock body structure of a secondary pressing plate intelligent miniature pressing plate connecting sheet, which is simple and practical in structure.
Specifically, the anti-error code sheet comprises a lock shell 1, a micro motor 2, an anti-error code sheet 3 and a pressure plate connecting sheet 4; the error-prevention code sheet 3 and the micro motor 2 are arranged in the lock shell 1 from top to bottom; a fixed end cover 41 at one end of the pressure plate connecting sheet 4 is sleeved on the rotating shaft 21 of the micro motor 2; the clamping joint 211 on the rotating shaft 21 is clamped and limited with the stopper 411 in the fixed end cover 41;
the fixed end cover 41 is further provided with an opening 412 which is arranged corresponding to the clamping connector 211; the opening 412 is formed in the lower portion of the stopper 411, and is used for achieving the squeezing clamping and the reverse pushing separation of the clamping connector 211 and the stopper 411.
The invention realizes the clamping positioning and the loosening of the pressing sheet connecting piece and the rotating shaft by correspondingly arranging the clamping joint on the rotating shaft and the stop block of the pressing sheet connecting piece, realizes the positioning rotation and the emergency unlocking of the pressing sheet connecting piece which can be applied to a relay protection device, and has the advantages of ingenious design, simple and practical structure.
Furthermore, a computer key 5 is also arranged; the computer key 5 is matched with the error-preventing code sheet 3;
further, the bayonet joints 211 are provided on both sides in the radial direction of the rotating shaft 21 through connecting portions 212; the hook 2111 of the card connector 211 is inverted and extends outward; the upper part of the hook 2111 abuts against the stopper 411 for limiting.
Further, the snap joint 211 is made of plastic and has certain elasticity.
The chip 7, the error-preventing chip 3 and the electrode 6 are aligned with the rotating thread in sequence, and are rotated in the upper inner cavity of the lock shell 1 and abut against the limiting sheet, and then the micro motor 2 is rotated in the lower inner cavity of the lock shell 1 and abuts against the chip 7.
Further, the fixed end cap 41 is sleeved on the rotating shaft 21; the fixed end cover 41 is a cover body structure with an opening at the lower part;
further, two groups of holes 412 are arranged at the lower part of the fixed end cover 41; the top of trompil 412 is equipped with dog 411, and both sides border axis of rotation 21's axial is equipped with fender portion 413, can realize joint 211 with can not circumferential direction after the baffle joint, spacing establishing is separating and is kept off the holding intracavity.
Further, the micro motor 2 is in threaded connection with the inside of the lock shell 1; the lock shell 1 is a cylindrical hollow whole body and is divided into an upper inner cavity and a lower inner cavity, rotating threads are arranged in the upper inner cavity and the lower inner cavity, and an electrode 6, an error code prevention piece 3 and a chip 7 are arranged in the upper inner cavity of the lock shell 1 in a rotating mode; the lower inner cavity of the lock shell 1 is provided with a micro motor 2.
Further, the connecting portion 212 extends outwards to realize the dislocation arrangement of the end portions of the connecting portion 212 and the stopper 411, so as to realize the upper and lower limit of the stopper 411; can avoid under normal conditions, clamp plate connection piece 4 passes through micro motor 2 rotary type, and the realization is right the upper and lower spacing of clamp plate connection piece 4 sets up more rationally, and the structure sets up ingeniously.
It should be noted that, under normal conditions, the pressing plate connecting piece 4 is sleeved on the rotating shaft 21 through the fixed end cover 41 and moves downwards along the rotating shaft 21, the stopper 411 presses the hook 2111 of the clamping head 211 to deflect inwards until reaching the inward recessed portion of the hook 2111, the hook 2111 enters the opening 412 due to the elastic deformation of the clamping head 211, and the upper end of the hook 2111 is abutted to the lower end of the stopper 411 for limiting, so as to realize the pressing and clamping of the pressing plate connecting piece 4; at this time, the clamping connector 211 is arranged in the blocking accommodating cavity, so that the pressure plate connecting piece 4 is connected with the rotating shaft 21 of the micro motor 2 in a positioning manner, and the rotating shaft 21 can be directly rotated to realize the rotation of the pressure plate connecting piece 4.
When in emergency (for example, the micro motor fails or the computer key is lost), the two rod bodies can be respectively inserted into the opening 412 and abutted against the hook 2111, and the hook 2111 is pushed inwards and reversely, due to the elastic action of the bayonet joint 211, the hook 2111 elastically yields inwards and is separated from the stop block 411 to enter the inner side of the fixed end cover 41, at the moment, the pressing plate connecting piece 4 is coaxially and rotatably connected with the rotating shaft 21, and the pressing plate connecting piece 4 can be directly rotated, so that unlocking is realized.
Further, the error-prevention chip 3 is used for collecting the unique lock code corresponding to the secondary pressing plate, data exchange and reading and writing are carried out in a wireless communication mode, the computer key 5 is in the prior art and can be used with the electrode 6 and the error-prevention chip 3 in a matched mode, the electrode 6 is inserted into the computer key 5 during field operation, and the electrode 6 is matched with the computer key 5 in on-off mode.
And when the computer key 5 collects that the error-preventing code pieces 3 are correct, the chip 7 sends a control signal, the micro motor 2 connected with the chip 7 changes the opening and closing states of the rotating shaft 21 of the micro motor 2 according to the control signal, and the rotating shaft 21 is opened at 90 degrees and closed at 45 degrees.
Preferably, an RFID chip can be adopted, and when the device is used, the device needs to be matched with an existing computer key, the stored code information is checked through the RFID chip and the computer key through a radio frequency technology, the code stored in the RFID chip is a name code and a status code, and the unlocking button of the computer key can be unlocked only if the information stored in the computer key is matched with the information stored in the RFID chip.
The invention mainly combines a secondary pressure plate anti-error lock core and a microcomputer anti-error computer key 5, the computer key 5 transmits a preset primary and secondary equipment locking logic operation ticket in an anti-error host to the computer key 5 in sequence through a transmission adapter, when an operator simulates test operation, the operator finds corresponding secondary pressure plate anti-error code pieces 3 one by one in the operation sequence on site, the computer key 5 carries out intelligent judgment according to the operation rule set by the operation ticket, the correctness of the anti-error code pieces 3 is automatically checked, if the operation is consistent with the anti-error code pieces 3, the computer key 5 prompts correct operation through voice, the computer key 5 is communicated with an electrode 6, the chip 7 sends a control signal to transmit the control signal to a micro motor 2 to open a rotating shaft 21, and the next operation is allowed after the operation is finished. If the operation is wrong, the computer key 5 gives an alarm through voice prompt to prompt an operator to correct the operation, so that the aim of preventing secondary misoperation is fulfilled. The invention combines the micro secondary pressure plate anti-error lock cylinder and the anti-error computer key to realize the forced locking function; meanwhile, the pressing plate connecting piece is connected with the micro motor upper mechanism on the anti-misoperation lock cylinder in an extrusion and reverse pushing mode to be separated, so that the emergency unlocking of the pressing plate connecting piece applicable to the relay protection device is realized, the problem of secondary pressing plate misoperation is greatly reduced, and the safe operation of a power system is ensured.
The device has the advantages of simple structure, convenient installation and operation, reusability, economy, practicality, flexible use, ingenious design, compact structure and good market prospect.
It should be noted that the detailed description of the invention is not included in the prior art, or can be directly obtained from the market, and the detailed connection mode can be widely applied in the field or daily life without creative efforts, and the detailed description is not repeated here.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence which characterized in that: comprises a lock shell, a micro motor, an error code prevention sheet and a pressure plate connecting sheet; the error code prevention piece and the micro motor are arranged in the lock shell from top to bottom; one end of the pressing plate connecting sheet is fixed on a rotating shaft of the micro motor in a sleeved mode through a fixed end cover; the clamping joint on the rotating shaft is clamped and limited with the stop block in the fixed end cover;
the fixed end cover is also provided with an opening which corresponds to the clamping joint; the opening is formed in the lower portion of the stop block and used for achieving extrusion clamping and reverse pushing separation of the clamping joint and the stop block.
2. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: a computer key is also arranged; and the computer key is matched with the error-proof chip.
3. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: the clamping joints are arranged on two radial sides of the rotating shaft through connecting parts; the hook head of the clamping joint is inverted and extends outwards; the upper part of the hook head is abutted and limited with the stop block.
4. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: the clamping connector is made of plastic.
5. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: the fixed end cover is sleeved on the rotating shaft.
6. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: the fixed end cover is of a cover body structure with an opening at the lower part.
7. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: two groups of holes are arranged on the lower portion of the fixed end cover.
8. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: the top of trompil is equipped with the dog, both sides border axis of rotation is equipped with fender portion of connecing.
9. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: the micro motor is in threaded connection with the inside of the lock shell; the lock shell is a cylindrical hollow whole body and is divided into an upper inner cavity and a lower inner cavity, rotating threads are arranged in the upper inner cavity and the lower inner cavity, and an electrode, an error code prevention piece and a chip are arranged in the upper inner cavity of the lock shell in a rotating mode; and a micro motor is arranged in the lower inner cavity of the lock shell.
10. The lock body structure of miniature clamp plate connection piece of secondary clamp plate intelligence of claim 1, characterized in that: the connecting part extends outwards to realize the dislocation arrangement of the end parts of the connecting part and the stop block and realize the upper and lower limit of the stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010410450.3A CN111430161A (en) | 2020-05-15 | 2020-05-15 | Lock body structure of secondary pressing plate intelligent miniature pressing plate connecting sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010410450.3A CN111430161A (en) | 2020-05-15 | 2020-05-15 | Lock body structure of secondary pressing plate intelligent miniature pressing plate connecting sheet |
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| Publication Number | Publication Date |
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| CN111430161A true CN111430161A (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010410450.3A Pending CN111430161A (en) | 2020-05-15 | 2020-05-15 | Lock body structure of secondary pressing plate intelligent miniature pressing plate connecting sheet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644625A (en) * | 2021-06-21 | 2021-11-12 | 国网浙江省电力有限公司湖州供电公司 | Lifting type secondary pressing plate mis-throwing prevention device and mis-throwing prevention method |
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| EP1289073A1 (en) * | 2001-08-27 | 2003-03-05 | Compagnie Deutsch GmbH | Electrical connector |
| CN201348953Y (en) * | 2008-12-08 | 2009-11-18 | 平湖市供电局 | Secondary pressure plate device for electric system relay protection |
| US20100263995A1 (en) * | 2008-02-05 | 2010-10-21 | Jian Sheng Bi | Three position lock device for drawout circuit breaker |
| US20170122008A1 (en) * | 2014-05-19 | 2017-05-04 | Hao Min | Safety locking mechanism for lockset |
| CN108808339A (en) * | 2018-07-12 | 2018-11-13 | 珠海优特电力科技股份有限公司 | Pressing plate blocking device and electrical power wiring device |
| CN109728506A (en) * | 2018-11-20 | 2019-05-07 | 珠海优特电力科技股份有限公司 | Pressing plate blocking device |
| CN211828534U (en) * | 2020-05-15 | 2020-10-30 | 国网安徽省电力有限公司滁州供电公司 | Lock body structure of secondary pressing plate intelligent miniature pressing plate connecting sheet |
-
2020
- 2020-05-15 CN CN202010410450.3A patent/CN111430161A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1289073A1 (en) * | 2001-08-27 | 2003-03-05 | Compagnie Deutsch GmbH | Electrical connector |
| US20100263995A1 (en) * | 2008-02-05 | 2010-10-21 | Jian Sheng Bi | Three position lock device for drawout circuit breaker |
| CN201348953Y (en) * | 2008-12-08 | 2009-11-18 | 平湖市供电局 | Secondary pressure plate device for electric system relay protection |
| US20170122008A1 (en) * | 2014-05-19 | 2017-05-04 | Hao Min | Safety locking mechanism for lockset |
| CN108808339A (en) * | 2018-07-12 | 2018-11-13 | 珠海优特电力科技股份有限公司 | Pressing plate blocking device and electrical power wiring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113644625A (en) * | 2021-06-21 | 2021-11-12 | 国网浙江省电力有限公司湖州供电公司 | Lifting type secondary pressing plate mis-throwing prevention device and mis-throwing prevention method |
| CN113644625B (en) * | 2021-06-21 | 2024-06-28 | 国网浙江省电力有限公司湖州供电公司 | Pulling type secondary pressing plate misthrow preventing device and misthrow preventing method |
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