CN108075360B - Pressing plate locking device - Google Patents
Pressing plate locking device Download PDFInfo
- Publication number
- CN108075360B CN108075360B CN201610982257.0A CN201610982257A CN108075360B CN 108075360 B CN108075360 B CN 108075360B CN 201610982257 A CN201610982257 A CN 201610982257A CN 108075360 B CN108075360 B CN 108075360B
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- Prior art keywords
- movable
- base
- lock
- side plate
- locking
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- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 description 17
- 238000012423 maintenance Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000012795 verification Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Casings For Electric Apparatus (AREA)
- Patch Boards (AREA)
Abstract
The invention provides a pressing plate locking device which comprises a base, a plurality of movable covers and interlocking pieces. The base is arranged around the plurality of pressing plates, the plurality of movable covers and the plurality of pressing plates are arranged on the base in a one-to-one correspondence manner, the plurality of movable covers are movably connected with the base, and the plurality of movable covers are used for being matched with the base to form a plurality of accommodating spaces when being buckled so as to accommodate the pressing plates; the interlocking piece is matched with the base and is used for pressing the movable cover which is required to be connected and blocked in the plurality of movable covers after the plurality of movable covers are buckled, so that the movable cover which is required to be connected and blocked is closed. The pressing plate locking device is convenient to install and simple to operate, the movable cover corresponding to the pressing plate needing to be locked in a row is arranged below the locking plate, the row locking is carried out, the movable cover corresponding to the pressing plate needing to be independently locked is arranged above the locking plate, and therefore the workload of operators is reduced, and the pressing plate locking device is flexible and easy to use.
Description
Technical Field
The invention relates to the field of electric power, in particular to a pressing plate locking device.
Background
The relay protection device in the secondary equipment of the power system is basic equipment for ensuring the safe operation of the primary equipment of the power, and the secondary equipment of the transformer substation is continuously increased along with the improvement of the degree of automation, so that the misoperation of the secondary equipment is gradually increased, and the correct input and the correct exit of the secondary pressing plate are important guarantees for realizing the protection function of the secondary equipment.
However, in the traditional power system, the secondary pressing plate generally has no error preventing function, the operation of the secondary pressing plate is only operated by operation and maintenance personnel according to the experience of operation and maintenance personnel, the operation and maintenance personnel performs operation against an operation ticket and records the operation and maintenance personnel in real time, and the error preventing measures of the secondary pressing plate generally only take some measures on management, such as standard double naming, color code management, additional installation of error touch preventing covers and the like, so that the error operation caused by the actions of the operation personnel such as error interval, reverse operation order and the like cannot be fundamentally prevented, and the forced locking of the secondary pressing plate cannot be realized, thereby fundamentally solving the error preventing problems of error casting, error withdrawal, missing casting, missing withdrawal and the like of secondary equipment.
Disclosure of Invention
Based on this, it is necessary to provide a device which is convenient to install and simple to operate and can realize the forced locking of the secondary pressing plate aiming at the forced locking problem of the secondary pressing plate.
A platen lock device, comprising: a base disposed around the plurality of platens; the movable covers are arranged on the base in one-to-one correspondence with the pressing plates, are movably connected with the base, and are used for being matched with the base to form a plurality of accommodating spaces when being buckled so as to accommodate the pressing plates; and the interlocking piece is matched with the base and is used for pressing the movable cover which is required to be blocked by the row in the plurality of movable covers after the plurality of movable covers are buckled, so that the movable cover which is required to be blocked by the row is closed.
In one embodiment, the base comprises a first side plate, a second side plate and a bottom plate, wherein the first side plate and the second side plate are opposite and are arranged at intervals, and the bottom plate is fixedly arranged between the first side plate and the second side plate.
In one embodiment, the pressing plate locking device further comprises a rotating shaft, the rotating shaft is arranged on the second side plate, the rotating shaft is matched with the movable covers, and the movable covers overturn around the rotating shaft to realize opening and closing.
In one embodiment, the first side plate is provided with a plurality of lock holes, the plurality of lock holes are arranged in one-to-one correspondence with the plurality of movable covers, and the distance between the plurality of lock holes and the bottom plate is greater than the distance between the interlocking piece and the bottom plate when the plurality of movable covers are closed, so that the interlocking piece is located between the lock holes and the movable covers.
In one embodiment, the locking device further comprises a lock, wherein the lock is matched with the lock hole and used for locking the movable cover which is required to be locked independently when the movable cover is closed, and locking the movable cover which is required to be locked in a row by locking the interlocking piece.
In one embodiment, the interlocking piece is in a strip structure, and the interlocking piece is provided with a through groove, and the through groove is used for accommodating the insertion of the first side plate, so that the first side plate is inserted into the through groove.
In one embodiment, the interlocking tab is a semi-closed strip-like structure, the interlocking tab having a slot for receiving the insertion of the first side panel.
In one embodiment, the movable covers are provided with electricity checking holes.
In one embodiment, the device further comprises a plug matched with the electricity testing hole.
In one embodiment, the device further comprises a clamping piece matched with the base to fix the base on the panel.
In one embodiment, the bottom plate is provided with a clamping hole matched with the pressing plate, and the clamping hole is used for clamping the pressing plate.
The pressing plate locking device provided by the invention can lock the pressing plates which do not need to be overhauled in a row, so that the corresponding movable cover is arranged below the locking plate; and independently locking the pressing plate to be overhauled, so that the corresponding movable cover is arranged above the interlocking plate, and independently locking. The pressing plate locking device is convenient to install and simple to operate, can realize the row locking of a row of pressing plates needing to be locked, can independently lock the pressing plates needing to be independently locked, reduces the workload of operators, and fundamentally prevents misoperation caused by the actions such as the interval of the operator, reversing the operation sequence and the like.
As an improvement of the invention, the movable cover is provided with the electricity checking hole corresponding to the electricity checking part of the pressing plate, so that the electricity checking operation is not influenced when the pressing plate is locked, the electricity checking operation can be still carried out after the pressing plate is locked, and the operation and maintenance personnel can work conveniently. In addition, the hole plug matched with the electricity inspection hole is further arranged, a notch is arranged at the bottom of the hole plug, the hole plug can be taken out after being pressed from the inner side, the operation is convenient, the pressing plate is protected, and dust, rainwater and the like are prevented from entering the pressing plate.
As another improvement of the invention, besides the base can be fixed on the panel by adopting the modes of gluing, screws and the like, a clamping piece is also designed, and the clamping piece is matched with the base to clamp the upper edge and the lower edge of the pressing plate, so that the fixing effect is realized. The clamping plate is used for clamping the fixed pressing plate, so that the operation is simple and convenient, the use is flexible, the fixing is easy, and the universality is strong.
Drawings
FIG. 1 is a schematic view of a platen lock of the present invention;
FIG. 2 is a side cross-sectional view of the platen lock of the present invention;
FIG. 3 is a schematic view of a portion of the structure of the base and clamping plate of the platen latch of the present invention;
FIG. 4 is a top view of an interlock plate in one embodiment of a platen lock assembly of the present invention;
FIG. 5 is a top view of an interlocking tab of another embodiment of a platen lock assembly of the present invention.
Wherein:
100-platen latch;
110-a base;
112-a first side plate;
113-a keyhole;
114-a second side panel;
115-a spindle;
116-supporting plates;
117-floor;
118-clamping holes;
119-grooves;
120-interlocking piece;
121-through grooves;
122-slotting;
130-a removable cover;
132-electroscope;
134-hole plug;
135-notch;
140-lockset;
210-clamping the sheet;
211-screw holes;
220-pressing plate;
230-panel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the platen lock device of the present invention will be described in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, in one embodiment of the present invention, a platen locking device 100 is provided, including: the locking device comprises a base 110, an interlocking piece 120 and a plurality of movable covers 130, wherein the interlocking piece 120 is used for limiting the movable covers 130 which need to be locked on the base 110.
The base 110 is disposed around the plurality of pressing plates 220, and in particular, the plurality of pressing plates 220 may be disposed on the panel 230, the base 110 is disposed around the pressing plates 220 for accommodating the pressing plates 220 in the base 110, and the base 110 may be fixedly disposed on the panel 230. Further, the base 110 includes a first side plate 112, a second side plate 114, and a bottom plate 117, the first side plate 112 is opposite to and spaced apart from the second side plate 114, and the pressing plate 220 may be disposed on the bottom plate 117. The first side plate 112, the second side plate 114 and the bottom plate 117 are disposed around the plurality of pressing plates 220, i.e. the plurality of pressing plates 220 may be disposed between the first side plate 112, the second side plate 114 and the bottom plate 117. The base 110 may be disposed on the panel 230, and in particular, the base 110 may be fixed on the panel 230 by using an adhesive, a screw, or the like.
The plurality of movable covers 130 are disposed on the base 110, specifically, the plurality of movable covers 130 are movably connected with the second side plate 114, the plurality of movable covers 130 may have a rectangular plate structure or a groove structure, and the plurality of movable covers 130 and the base 110 cooperate to form a plurality of accommodating spaces to accommodate the pressing plate 220. Each of the plurality of movable covers 130 has a first end and a second end opposite to each other, the first end is rotatably connected to the second side plate 114, and the second end rotates around the second side plate 114 to open and close the movable cover.
The interlocking piece 120 has a strip structure, and the interlocking piece 120 is matched with the first side plate 112, so as to press the movable covers 130 of the plurality of movable covers 130, which are required to be connected and blocked, to close the movable covers 130 of the required connected and blocked on the base 110, thereby realizing integral blocking. The "row locking" refers to that, for a row of pressing plates 220, after the movable covers 130 corresponding to the pressing plates 220 that need to be locked uniformly are buckled, the interlocking piece 120 is used for pressing the movable covers 130 that need to be locked uniformly, so that the movable covers 130 that need to be locked uniformly are placed at the lower part of the interlocking piece 120 when being buckled, and thus the movable covers 130 that need to be locked uniformly are closed; therefore, only one lock 140 is needed to lock the movable covers 130, so that the row locking of the movable covers 130 is realized. And the movable cover 130 without the row locking is placed above the locking piece 120 when it is fastened to achieve separate locking.
Referring to fig. 4, in one embodiment, the interlocking piece 120 has a strip structure, and a through groove 121 is disposed in the interlocking piece 120, and the through groove 121 is used for accommodating the insertion of the first side plate 112, so that the first side plate 112 is inserted into the through groove 121. Specifically, when the plurality of movable covers 130 are fastened, the interlocking piece 120 is sleeved on the first side plate 112, so that the first side plate 112 is inserted into the through groove 121. Specifically, the locking piece 120 presses the second end of the movable cover 130 of the desired row lock, so that the second end of the movable cover 130 is limited between the locking piece 130 and the first side plate 112, thereby facilitating the subsequent row lock. Meanwhile, the second end of the movable cover 130, which does not require the in-line locking, may be disposed on the locking piece 130 to facilitate the subsequent separate locking.
Referring to fig. 5, in another embodiment, the interlocking piece 120 may also be a semi-closed strip structure, and a slot 122 may be disposed in the interlocking piece 120 of the semi-closed strip structure, where the slot 122 is used to accommodate insertion of the first side plate 112, so that the first side plate 112 is inserted into the slot 122. In this embodiment, the interlocking piece 120 has a strip structure with a through groove 121, and is used to press the movable cover 130 that needs to be locked in a row, so as to implement the locking in a row, and the movable cover 130 that does not need to be locked in a row is placed on the upper portion of the interlocking piece 120, so as to implement the independent locking of the movable cover 130. It will be appreciated that the strip structure of the interlocking piece 120 is merely a structure in a specific embodiment, and may be selected according to practical needs in application, so long as the interlocking piece 120 is guaranteed to have a through slot, and can accommodate the insertion of the first side plate 112 to achieve the row locking function.
The first side plate 112 may be provided with a plurality of lock holes 113, where the lock holes 113 are used to cooperate with the lock 140 to lock the movable cover 130. The location of the locking hole 113 may be selected according to the height of the movable cover 130 and the thickness of the locking piece 120. Specifically, the height of the upper surface of the movable cover 130 and the thickness of the interlocking piece 120 may be selected according to the time of the snap-fit of the movable cover 130. Further, the distance between the locking hole 113 and the bottom plate 117 is greater than the distance between the interlocking piece 120 and the bottom plate 117 when the movable cover 130 is closed, so that after the interlocking piece 120 is sleeved on the second side plate 112, the locking hole 113 is still located on the interlocking piece 120, so as to facilitate insertion of the lock 140. The locking holes 113 may be disposed in one-to-one correspondence with the plurality of movable covers 130. Further, the number of the locking holes 113 may be smaller than the number of the movable covers 130.
The lock 140 cooperates with the locking hole 113 to lock the locking piece 120 and the movable cover 130. Specifically, when the movable cover 130 is fastened, the locking piece 120 is sleeved on the second side plate 112, and then the lock 140 is inserted into the lock hole 113, so as to lock the locking piece 120. In addition, the lock 140 may also lock the movable cover 130 that is individually locked. The lock 140 may be a mechanical lock, an electronic lock, or any other lock.
Further, a rotating shaft 115 is disposed on the second side plate 114, and the plurality of movable covers 130 may rotate around the rotating shaft 115 to realize opening and closing. The movable covers 130 can be inserted into the rotating shaft 115 to turn over the movable covers 130. Specifically, the first ends of the plurality of movable covers 130 may be rotatably connected to the rotating shaft 115, and the second ends of the movable covers 130 rotate around the rotating shaft 115 to open and close the movable covers 130. It is understood that the number of the rotating shafts 115 may be plural, and the plural movable covers 130 are disposed in one-to-one correspondence with the plural rotating shafts 115, and each movable cover 130 is turned around one rotating shaft 115. Further, the plurality of movable covers 130 and the second side plate 114 may be hinged, flexibly connected, etc., so long as the movable cover 130 is guaranteed to rotate around the rotation shaft 115 to realize opening and closing.
In addition, the second side plate 114 may further include a plurality of support plates 116 disposed at intervals, where the number of support plates 116 is the same as the number of the plurality of movable covers 130, and the plurality of support plates 116 disposed at intervals are disposed in one-to-one correspondence with the plurality of movable covers 130. The movable covers 130 are rotatably disposed on the support plate 116, and the support plate 116 may be provided with a fastening structure or a movable connection structure for movably connecting the support plate 116 with the movable covers 130, and the support plate 116 cooperates with the movable covers 130 to complete opening and closing of the movable covers. In this embodiment, the rotating shaft 115 is disposed on each supporting plate 116, and the plurality of movable covers 130 are movably connected with the supporting plates 116 through the rotating shaft 115.
The movable covers 130 in the platen locking device 100 may further be provided with electricity checking holes 132, which are arranged in a one-to-one correspondence with the platen 220, and specifically, the electricity checking holes 132 are arranged corresponding to electricity checking positions of the platen 220. Through setting up the electricity test hole 132 the clamp plate 220 is in under the locking state, can pass through the electricity test hole 132 tests the electric operation to clamp plate 220, and is nimble easy-to-use, convenient operation reduces maintenance personnel's work load. The platen lock out device 100 further includes a hole plug 134 that mates with the verification hole 132, the hole plug 134 being insertable into the verification hole 132 to cover the verification hole 132. A notch 135 is provided at the bottom of the plug 134 to facilitate removal of the plug 134 from the verification aperture 132. The hole plug 134 may be made of soft material such as rubber or plastic, and the hole plug 134 may be taken out from the electricity test hole 132 by pressing from the inside of the hole plug 134. The hole plugs 134 can prevent dust, rainwater and the like from entering the electricity inspection holes 132, protect the pressing plate 220, and prolong the service life of the pressing plate 220.
The platen lock 100 further includes a clamping tab 210, which may be an L-shaped flap, for securing the base 110 in the panel 230. Specifically, the bottom of the second side plate 114 may further be provided with a groove 119 for accommodating insertion of the clamping piece 210. In addition, the second side plate 114 may further be provided with a screw hole 211 for cooperating with the screw hole 211 of the clamping piece 210, for connecting the clamping piece 210 and the second side plate 114, so as to clamp the pressing plate 220. The clamping piece 210 is provided with a screw hole 211, and the clamping piece 210 is inserted into the groove 119 of the second side plate 114 to fix the base 110 in the panel 230.
The bottom plate 117 may further be provided with a clamping hole 118 matched with the pressing plate 220, the clamping hole is used for clamping the pressing plate 220, the clamping hole 118 may be a through hole for clamping a plurality of side-by-side pressing plates 220, the clamping hole 118 may also be a plurality of through holes arranged at intervals, each through hole corresponds to the pressing plate 220, so that the pressing plate 220 is clamped in the clamping hole 118, and the pressing plate 220 may be connected with an external circuit through the clamping hole 118.
The platen locking device 100 may lock a row of platens 220 that need to be locked in a row, and may lock platens 220 that need to be individually locked in a row. Specifically, the movable cover 130 corresponding to the pressing plate 220 that is required to be locked in the row is first fastened. The interlocking piece 120 is covered and pressed against the movable cover 130, so that the movable cover 130 which is locked by the required row is arranged below the interlocking piece 120, and the movable cover 130 is closed. Then, the movable cover 130 corresponding to the pressing plate 220 without the row locking is placed above the interlocking piece 120 for locking. Finally, the lock 140 is inserted into the lock hole 113 to lock the interlocking piece 120 and the movable cover 130 that needs to be individually locked, so as to realize the row locking and the individual locking of the pressing plate 220.
The platen lock 100 provided by the invention has the following beneficial effects:
first, the above-mentioned clamp plate locking device 100 is convenient to install and simple to operate, and can realize the row locking of a row of clamp plates 220 that need to be locked, and can carry out independent locking to the clamp plates that need independent locking, reduce the workload of operating personnel, fundamentally prevent the maloperation that is caused by actions such as operating personnel walk wrong interval, reverse operation order.
Second, in the embodiment of the above-mentioned pressing plate locking device, the movable cover 130 is provided with the electricity checking hole 132, so that the operation of checking electricity is not affected when the pressing plate 220 is locked, and the operation and maintenance personnel work are facilitated. In addition, a hole plug 134 is provided, which is matched with the electricity checking hole 132, to protect the pressing plate 220 and prevent dust, rainwater and the like from entering the pressing plate 220.
Third, in one embodiment, a clamping piece 210 is designed, and the clamping piece 210 and the base 110 clamp the upper and lower edges of the pressing plate to perform a fixing function. The clamping plate 210 is used for clamping the fixed pressing plate 220, so that the operation is simple and convenient, the use is flexible, the fixation is easy, and the universality is strong.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (11)
1. A platen lock comprising:
a base disposed around the plurality of platens;
the movable covers are arranged on the base in one-to-one correspondence with the pressing plates, are movably connected with the base, and are used for being matched with the base to form a plurality of accommodating spaces when being buckled so as to accommodate the pressing plates;
the interlocking piece is matched with the base and is used for pressing the movable cover which is required to be blocked by the row in the plurality of movable covers after the plurality of movable covers are buckled, so that the movable cover which is required to be blocked by the row is closed;
the base comprises a first side plate, a second side plate and a bottom plate, wherein the first side plate and the second side plate are opposite and are arranged at intervals, and the bottom plate is fixedly arranged between the first side plate and the second side plate;
the pressing plate locking device further comprises a rotating shaft, the rotating shaft is arranged on the second side plate, the rotating shaft is matched with the movable covers, and the movable covers overturn around the rotating shaft to realize opening and closing;
the interlocking piece is of a strip-shaped structure, and the interlocking piece is provided with a through groove which is used for accommodating the insertion of the first side plate, so that the first side plate is inserted into the through groove.
2. The platen lock of claim 1, wherein the second side plate further comprises a plurality of support plates arranged at intervals, the number of support plates is the same as the number of the plurality of movable covers, and the plurality of support plates arranged at intervals are arranged in one-to-one correspondence with the plurality of movable covers.
3. The platen lock of claim 1 wherein one end of the plurality of movable covers is rotatably coupled to the shaft and the other end of the movable covers rotates about the shaft.
4. The platen lock as claimed in claim 1, wherein the first side plate is provided with a plurality of locking holes, the plurality of locking holes are provided in one-to-one correspondence with the plurality of movable covers, and a distance between the plurality of locking holes and the bottom plate is greater than a distance between the locking piece and the bottom plate when the plurality of movable covers are closed, so that the locking piece is located between the locking holes and the movable covers.
5. The platen lock device of claim 4 further comprising a lock cooperating with the lock hole for locking the movable cover to be individually locked when the movable cover is closed, and locking the movable cover to be locked by locking the interlocking piece.
6. The platen lock of claim 5 wherein the lock comprises a mechanical lock.
7. The platen lock of claim 1 wherein the interlocking tab is a semi-closed strip configuration, the interlocking tab having a slot for receiving the insertion of the first side panel.
8. The platen lock of claim 1 wherein the plurality of movable covers are each provided with an electroscopic aperture.
9. The platen lock out device of claim 8 further comprising a plug that mates with the electroscopic aperture.
10. The platen lock of claim 1 further including a clamping tab that cooperates with the base to secure the base to the panel.
11. The platen lock of claim 1 wherein the base plate is provided with a snap-in hole for engaging the platen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610982257.0A CN108075360B (en) | 2016-11-08 | 2016-11-08 | Pressing plate locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610982257.0A CN108075360B (en) | 2016-11-08 | 2016-11-08 | Pressing plate locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108075360A CN108075360A (en) | 2018-05-25 |
| CN108075360B true CN108075360B (en) | 2024-03-15 |
Family
ID=62154153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610982257.0A Active CN108075360B (en) | 2016-11-08 | 2016-11-08 | Pressing plate locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108075360B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001306101A (en) * | 2000-04-24 | 2001-11-02 | Canon Inc | Wrong operation preventive device of operating panel |
| CN101680570A (en) * | 2007-06-01 | 2010-03-24 | 总锁有限责任公司 | Lockout device |
| CN201981554U (en) * | 2010-12-31 | 2011-09-21 | 曾义强 | Anti-theft manhole cover |
| CN203746695U (en) * | 2014-03-13 | 2014-07-30 | 中国石油化工股份有限公司 | Anti-maloperation blocking device |
| CN203871708U (en) * | 2014-03-31 | 2014-10-08 | 国家电网公司 | Anti-maloperation locking cover special for secondary pressure plate of protection apparatus |
| CN204597223U (en) * | 2015-05-28 | 2015-08-26 | 国网山东省电力公司枣庄供电公司 | Substation secondary pressing plate anti-misoperation locking device |
| CN206180381U (en) * | 2016-11-08 | 2017-05-17 | 珠海优特电力科技股份有限公司 | Clamp plate blocking device |
-
2016
- 2016-11-08 CN CN201610982257.0A patent/CN108075360B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001306101A (en) * | 2000-04-24 | 2001-11-02 | Canon Inc | Wrong operation preventive device of operating panel |
| CN101680570A (en) * | 2007-06-01 | 2010-03-24 | 总锁有限责任公司 | Lockout device |
| CN201981554U (en) * | 2010-12-31 | 2011-09-21 | 曾义强 | Anti-theft manhole cover |
| CN203746695U (en) * | 2014-03-13 | 2014-07-30 | 中国石油化工股份有限公司 | Anti-maloperation blocking device |
| CN203871708U (en) * | 2014-03-31 | 2014-10-08 | 国家电网公司 | Anti-maloperation locking cover special for secondary pressure plate of protection apparatus |
| CN204597223U (en) * | 2015-05-28 | 2015-08-26 | 国网山东省电力公司枣庄供电公司 | Substation secondary pressing plate anti-misoperation locking device |
| CN206180381U (en) * | 2016-11-08 | 2017-05-17 | 珠海优特电力科技股份有限公司 | Clamp plate blocking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108075360A (en) | 2018-05-25 |
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