CN104576119A - Mechanical five-prevention lock - Google Patents
Mechanical five-prevention lock Download PDFInfo
- Publication number
- CN104576119A CN104576119A CN201410848630.4A CN201410848630A CN104576119A CN 104576119 A CN104576119 A CN 104576119A CN 201410848630 A CN201410848630 A CN 201410848630A CN 104576119 A CN104576119 A CN 104576119A
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- Prior art keywords
- lock
- key
- plug
- manhole door
- strip
- Prior art date
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- Granted
Links
- 239000000428 dust Substances 0.000 claims description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000005367 electrostatic precipitation Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 4
- 241000282472 Canis lupus familiaris Species 0.000 description 50
- 239000000284 extract Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/285—Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The invention provides a mechanical five-prevention lock. The mechanical five-prevention lock comprises m inlet lines and n outlet lines, wherein the m inlet lines and the n outlet lines are connected through a key in-out device, an mth breaker and an mth earthing switch are sequentially arranged on the mth inlet line, an mth breaker lock plunger lock is arranged on the mth breaker, and an mth switch lock plunger lock is arranged on the mth earthing switch; an nth manhole door lock is arranged on the nth outlet line. In the original state, the mth breaker lock plunger lock is matched with a key Am, a key Bm is coupled to the mth breaker lock plunger lock, n keys C are coupled to the key in-out devices, and a key Dn is coupled to the nth manhole door lock; the key Bm is decoupled through the key Am, the n keys C are synchronously decoupled through m keys B, and the key Dn is decoupled through the key Cn. By means of the mechanical five-prevention lock, right operation procedures of an electrostatic precipitation chamber can be solidified to each operation module, and therefore error operation is accordingly prevented.
Description
Technical field
The present invention relates to the safety interlock used in metallurgy, chemistry and coal electrical travelling industry, relate more specifically to a kind of machinery five anti-lock, its anti-misoperation for electrostatic precipitation room is interlocked.
Background technology
Five anti-lock can preventing are divided by mistake, are closed circuit breaker; Prevent on-load from dividing, close isolating switch; Prevent band cable address (conjunction) earth connection (earthed switch); Prevent band ground wire power transmission; Prevent mistakenly entering charged chamber, the occasion be thus able to there being operating sequence to require is able to extensive use.Such as often be provided with electrostatic precipitation room in metallurgy, chemical industry and coal electrical travelling industry, there is high-pressure electrostatic electrostatic precipitation indoor, if enter the operation of electrostatic precipitation room when the high-pressure electrostatic of electrostatic precipitation indoor is not eliminated completely, and can be abnormally dangerous.Usually operate as follows and just can enter electrostatic precipitation room: disconnect electrostatic precipitation room circuit breaker; By electrostatic precipitation room dump energy ground connection; Open electrostatic precipitation room manhole door.Someone is when electrostatic precipitation is indoor, and manhole door can not Close All; When operating personnel does not go out electrostatic precipitation room completely, manhole door does not have a Close All, can not earthing switch blade be divided, can not circuit breaker be closed.
Guarantee in prior art that the measure of personal security turnover electrostatic precipitation room is suspension safety warning-panel, its method is: when entering dirt pocket inside, necessary open circuit circuit breaker, cathode portion ground connection is made with earth rod, hang up power-off warning board at operation board simultaneously, guarantee the safety entering dirt pocket personnel.But in actual production, often there is the situation that people is misoperation; hang safety warning-panel simultaneously and also only can play warning function; when safety warning-panel is lost, or time operating personnel does not notice safety signs, huge injury to personnel usually can be caused dangerous.
Summary of the invention
The object of this invention is to provide a kind of machinery five anti-lock, thus solve in prior art the problem of easy misoperation when passing in and out electrostatic precipitation room.
A kind of machinery five provided by the invention is anti-lock, comprise the m bar inlet wire and the outlet of n bar that are connected by key in-out apparatus, wherein: m article of inlet wire is disposed with m circuit breaker and m earthing switch blade, m circuit breaker is provided with m lock for circuit breaker bolt-lock, m earthing switch blade is provided with m plug-in strip locking bolt lock; Article n-th, outlet is provided with the n-th manhole door lock; In an initial condition, m lock for circuit breaker bolt-lock mates with key Am, and m plug-in strip locking bolt is locked and be coupled key Bm, key in-out apparatus has been coupled n key C, and the n-th manhole door is locked and has been coupled key Dn; Key Bm is by key Am decoupling zero, and n key C is by m the synchronous decoupling zero of key B, and key Dn is by key Cn decoupling zero.
Each lock for circuit breaker bolt-lock has telescopic dead bolt, and dead bolt coordinates with earthing switch blade, and dead bolt and key A link.
Each plug-in strip locking bolt lockset has the first plug-in strip lock dog and the second plug-in strip lock dog of series connection, and the first plug-in strip lock dog and the second plug-in strip lock dog have telescopic dead bolt respectively, and the first plug-in strip lock dog mates with key A, and the second plug-in strip lock dog mates with key B.
Earthing switch blade comprises the discoid rotating disk locked with plug-in strip locking bolt and coordinate, and disk peripheral is radially-inwardly provided with shrinkage pool, and the dead bolt that shrinkage pool is locked with plug-in strip locking bolt coordinates.
Rotating disk is provided with the radially outer handle from the center of circle, and handle one end is stretched out outside rotating disk, and the other end aligns with shrinkage pool.
The m that key in-out apparatus has a series connection enter lock dog and n go out lock dog, m is entered lock dog and mates with key B, n individual go out lock dog mate with key C.
Each manhole door lock has the first manhole door lock block and the second manhole door lock dog of series connection, and the first manhole door lock block mates with key C, and the second manhole door lock dog mates with key D.
Each manhole door lock also has snap close, and snap close mates with the second manhole door lock dog, and snap close is by key C and key D decoupling zero.
Lock for circuit breaker bolt-lock, plug-in strip locking bolt lock, key in-out apparatus and manhole door are locked and are provided with dust cap.
The proper operation flow process of electrostatic precipitation room anti-lockly can be solidificated on each operational module by of the present invention mechanical five, thus prevents misoperation.Operating personnel must can pass in and out electrostatic precipitation room according to correct operating process operation.Once operating personnel's faulty operation current device, then equipment is in the lock state, and more cannot unlock current device when operating personnel takes key by mistake.
Accompanying drawing explanation
Fig. 1 is mechanical five anti-lock connection diagrams according to an embodiment of the invention, wherein locks solidly in BBL, BEL, BDL to indicate that key inserts, and hollow expression does not have key to insert;
Fig. 2 is the schematic perspective view according to the anti-lock lock for circuit breaker bolt-lock BBL of the machinery five of Fig. 1;
Fig. 3 is the operation chart according to the anti-lock earthing switch blade of the machinery five of Fig. 1;
Fig. 4 is the schematic perspective view of the anti-lock key in-out apparatus BEL of the machinery five of Fig. 1;
Fig. 5 is the schematic perspective view of the anti-lock manhole door door lock BDL of the machinery five of Fig. 1.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.Should be understood that following examples only for illustration of the present invention but not for limiting the scope of the invention.
Fig. 1 shows the connection diagram that machinery five is anti-lock according to an embodiment of the invention, wherein there are four inlet wires and six outlets, i.e. m=4, n=6, article six, outlet is arranged respectively six manhole door locks, four inlet wires are connected by key in-out apparatus BEL10 with six manhole door locks.Article 1, the inlet wire L1 last time is provided with first circuit breaker and first earthing switch blade P1, first circuit breaker is provided with first lock for circuit breaker bolt-lock BBL1, and this lock for circuit breaker bolt-lock BBL1 has key A1 and mates with key A1; First earthing switch blade P1 is provided with first plug-in strip locking bolt lock BBL1, this plug-in strip locking bolt lock BBL1 comprises the first plug-in strip lock dog and the second plug-in strip lock dog of two series connection, first plug-in strip lock dog mates with key A1, second plug-in strip lock dog has been coupled key B1, when the gate-dividing state of earthing switch blade P1; When earthing switch blade is in "on" position, first plug-in strip lock dog inserts key A1, in this condition the second plug-in strip lock dog decoupling zero, the rotatable key A1 simultaneously that extracts of key B1 is in the lock state and can not extracts.In like manner, the circuit breaker of Article 2 inlet wire L2 is also provided with second lock for circuit breaker bolt-lock BBL1, this lock for circuit breaker bolt-lock has key A2, the earthing switch blade P2 of Article 2 inlet wire L2 is arranged second plug-in strip locking bolt lock BBL1, second plug-in strip locking bolt lock BBL1 comprises the first plug-in strip lock dog and the second plug-in strip lock dog of two series connection, wherein the first plug-in strip lock dog mates with key A2, and the second plug-in strip lock dog is coupled key B2.For Article 3, Article 4 inlet wire L3, L4, there is same configuration, do not repeat one by one at this.In the embodiment shown in fig. 1, also be provided with four at close plug-in strip locking bolt lock BBL1 place and enter the six key in-out apparatus BEL10 gone out, key in-out apparatus BEL10 has the lock dog of 10 series connection, its be respectively four enter lock dog and six go out lock dog, four keys entering lock dog successively with the key B1 of the earthing switch blade on four inlet wires, B2, B3, B4 is coupled, other six go out key C1 lock dog being coupled respectively and fanning manhole door with six and mate, C2, C3, C4, C5, C6, key C1, C2, C3, C4, C5, C6 is by key B1, B2, B3, the synchronous decoupling zero of B4, that is, as key B1, B2, B3, when B4 inserts key in-out apparatus BEL10 simultaneously and rotates, can unlock key C1, C2, C3, C4, C5, C6.Six fan manhole doors are provided with manhole door lock BDL2 successively, each manhole door lock BDL2 comprises the first manhole door lock block and the second manhole door lock dog of two series connection, wherein with the first manhole door lock block successively with the key C1 on key in-out apparatus BEL10, C2, C3, C4, C5, C6 mates, second manhole door lock dog has been coupled key D1 successively, D2, D3, D4, D5, D6, such as, the first manhole door lock block of the manhole door lock BDL2 on manhole door M1 mates with key C1, second manhole door lock dog has been coupled key D1, only have as key C1, when D1 inserts manhole door lock BDL2 simultaneously, manhole door M1 just can open, other five fans manhole door in like manner, do not repeat one by one at this.
Fig. 2 shows the locking bolt lock BBL1 that Article 1 inlet wire of the present invention adopts, it comprises telescopic dead bolt S1, key A1 and dead bolt S1 links, key A1 inserts lock core and rotates, dead bolt S1 retracts, key A1 rotates and extracts then dead bolt S1 and ejects, thus is stretched by dead bolt S1 and insert in shrinkage pool corresponding to earthing switch blade thus the lock-out state of control earthing switch blade.The lock core of this locking bolt lock BBL1 also has dust cap G1.
Fig. 3 shows the separating brake "on" position comparison diagram of the earthing switch blade of Article 1 inlet wire L1 of the present invention, wherein earthing switch blade comprises discoid rotating disk and the plug-in strip locking bolt that coordinates with rotating disk locks BBL1, disk peripheral is radially-inwardly provided with shrinkage pool P12, and the dead bolt S1 that shrinkage pool P12 and plug-in strip locking bolt lock BBL1 coordinates; The circle centre position of rotating disk is provided with radially outer handle P11, and handle P11 stretches out outside rotating disk in one end, and the other end aligns with shrinkage pool P12.When handle P11 is in open position, the dead bolt S1 of the first plug-in strip lock dog corresponding to key A1 inserts in shrinkage pool P12, and handle P11 is not rotatable; Insert key A1 to unlock to the first plug-in strip lock dog, dead bolt S1 corresponding to key A1 retracts, now rotating disk can rotate, rotate earthing switch blade to closing position, now shrinkage pool P12 aims at the dead bolt of key B1, then rotates and extracts A2 key, and the dead bolt of the second plug-in strip lock dog corresponding to key B1 ejects, then earthing switch blade is locked in closing position, and now A1 key is in the lock state and can not extracts.
Fig. 4 shows key in-out apparatus BEL4 in accordance with another embodiment of the present invention, this key in-out apparatus BEL4 goes out formula into three, and concrete turnover quantity can be determined according to actual operation requirements, such as, if five sections of inlet wires, five manhole door locks, five enter five and go out exactly.Key in-out apparatus BEL4 comprises four lock dogs combined successively, its be respectively one enter lock dog and three go out lock dog, enter lock dog and three and go out lock dog and be coupled, such as, the key B1 entering lock dog inserts and rotates, and three three keys C1, C2, C3 going out lock dog can rotate and extract.
Fig. 5 shows the manhole door door lock BDL2 with two series connection lock dogs that the present invention adopts, manhole door door lock comprises two the first manhole door lock blocks and the second manhole door lock dog that are coupled, first manhole door lock block mates with key C, second manhole door lock dog has been coupled key D, and the second manhole door lock dog also coordinates with snap close K1.Such as, after two keys C1, D1 taking out from key in-out apparatus BEL insert the first manhole door lock block simultaneously and rotate, extract key D1 simultaneously key C1 be locked on manhole door door lock, snap close K1 can extract from lock body, snap close K1 extracts rear manhole door and opens, and now the snap close K1 of manhole door door lock and lock body cannot pin.
Again as shown in Figure 1, use mechanical five anti-lock electrostatic precipitation room job steps of the present invention as follows:
Disconnect the Article 1 inlet wire L1 of 400V, extract the key A1 of first locking bolt lock BBL1 on first circuit breaker, then first circuit breaker of the Article 1 inlet wire L1 of 400V is locked in off-position.
Second circuit breaker of Article 2 inlet wire L2-L4 operates in the same way can extract key A2, A3, A4, does not repeat one by one at this.
Unlock to first plug-in strip lock dog on first earthing switch blade P1 with key A1, operate first earthing switch blade P1 ground connection, then can extract the key B1 on second plug-in strip lock dog, key B1 extracts rear earthing switch blade P1 and is locked in ground state, earthing switch blade P1 inserts simultaneously A1 key and the decoupling zero of A2 key ability, indispensable.
Earthing switch blade 2-4 operates in the same way and can take out key B2, B3, B4, does not repeat one by one at this.
Key B1, B2, B3, B4 to be inserted on key in-out apparatus BEL10 and corresponding to enter on lock dog, rotate key B1, B2, B3, B4 and then can use lock dog decoupling zero, thus key C1, C2, C3, C4, C5, C6 are extracted in rotation, key C1, C2, C3, C4, C5, C6 extract rear key B1, B2, B3, B4 and are locked in above key in-out apparatus BEL10 and cannot extract.
Unlock to the first manhole door lock block of manhole door M1 with key C1, then rotate and extract key D1 and can open manhole door M1 and enter electrostatic precipitation room and carry out overhauling or other operations, when key D1 does not turn back to the second manhole door lock dog of manhole door M1 again, manhole door lock BDL2 cannot lock, and C1 key cannot take out.
Manhole door M2-M6 in kind operates and can open, and does not repeat one by one at this.
Contrary operation can recover power transmission.
Above-described, be only preferred embodiment of the present invention, and be not used to limit scope of the present invention, the above embodiment of the present invention can also make a variety of changes.Namely every claims according to the present patent application and description are done simple, equivalence change and modify, and all fall into the claims of patent of the present invention.The not detailed description of the present invention be routine techniques content.
Claims (9)
1. the anti-lock system of machinery five, is characterized in that, described mechanical five anti-lock systems comprise the m bar inlet wire and the outlet of n bar that are connected by key in-out apparatus, wherein:
M article of inlet wire is disposed with m circuit breaker and m earthing switch blade, m circuit breaker is provided with m lock for circuit breaker bolt-lock, m earthing switch blade is provided with m plug-in strip locking bolt lock;
Article n-th, outlet is provided with the n-th manhole door lock;
In an initial condition, m lock for circuit breaker bolt-lock mates with key Am, and m plug-in strip locking bolt is locked and be coupled key Bm, key in-out apparatus has been coupled n key C, and the n-th manhole door is locked and has been coupled key Dn;
Key Bm is by described key Am decoupling zero, and n key C is by m the synchronous decoupling zero of key B, and key Dn is by key Cn decoupling zero.
2. mechanical five anti-lock systems according to claim 1, it is characterized in that, each lock for circuit breaker bolt-lock has telescopic dead bolt, and described dead bolt coordinates with described earthing switch blade, and described dead bolt and key A link.
3. mechanical five anti-lock systems according to claim 2, it is characterized in that, each plug-in strip locking bolt lockset has the first plug-in strip lock dog and the second plug-in strip lock dog of series connection, described first plug-in strip lock dog and described second plug-in strip lock dog have telescopic dead bolt respectively, described first plug-in strip lock dog mates with key A, and described second plug-in strip lock dog mates with key B.
4. mechanical five anti-lock systems according to claim 3, it is characterized in that, described earthing switch blade comprises locks with described plug-in strip locking bolt the discoid rotating disk coordinated, and described disk peripheral is radially-inwardly provided with shrinkage pool, and the described dead bolt that described shrinkage pool is locked with described plug-in strip locking bolt coordinates.
5. mechanical five anti-lock systems according to claim 4, it is characterized in that, described rotating disk is provided with the radially outer handle from the center of circle, and described handle one end is stretched out outside described rotating disk, and the other end aligns with described shrinkage pool.
6. mechanical five anti-lock systems according to claim 3, is characterized in that, the m that key in-out apparatus has a series connection enter lock dog and n go out lock dog, enter lock dog described in m and mate with described key B, go out lock dog described in n is individual and mate with key C.
7. mechanical five anti-lock systems according to claim 6, it is characterized in that, each described manhole door lockset has the first manhole door lock block and the second manhole door lock dog of series connection, and described first manhole door lock block mates with described key C, and the second manhole door lock dog mates with key D.
8. mechanical five anti-lock systems according to claim 7, is characterized in that, each described manhole door lock also has snap close, and described snap close mates with described second manhole door lock dog, and described snap close is by described key C and described key D decoupling zero.
9. mechanical five anti-lock systems according to claim 1, is characterized in that, described lock for circuit breaker bolt-lock, described plug-in strip locking bolt lock, described key in-out apparatus and described manhole door are locked and be provided with dust cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848630.4A CN104576119B (en) | 2014-12-31 | 2014-12-31 | Machinery five is anti-lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410848630.4A CN104576119B (en) | 2014-12-31 | 2014-12-31 | Machinery five is anti-lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104576119A true CN104576119A (en) | 2015-04-29 |
| CN104576119B CN104576119B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410848630.4A Active CN104576119B (en) | 2014-12-31 | 2014-12-31 | Machinery five is anti-lock |
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| CN (1) | CN104576119B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870971A (en) * | 2016-05-31 | 2016-08-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Anti-misoperation locking system and method for power plant |
| CN106783282A (en) * | 2016-12-13 | 2017-05-31 | 中车长春轨道客车股份有限公司 | A kind of simple EMU driver master keys device for preventing unwanted operation |
| CN107309088A (en) * | 2017-08-02 | 2017-11-03 | 福建龙净环保股份有限公司 | A kind of interlock and detection method |
| CN109681635A (en) * | 2018-12-27 | 2019-04-26 | 安徽响水涧抽水蓄能有限公司 | One kind prevents Pressure container manhole door band from holding up deployment method |
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| US6392170B1 (en) * | 2000-07-25 | 2002-05-21 | Eric J. Wechsler | Manually movable sliding actuator for toggle switch actuator including position retention structure |
| CN202347951U (en) * | 2011-08-17 | 2012-07-25 | 上海凯研机械设备有限公司 | Encoding type safe mechanical interlocking system |
| CN102622802A (en) * | 2012-04-17 | 2012-08-01 | 珠海华伟电气科技股份有限公司 | Integrated management system of power microcomputer anti-misoperation and intelligent lock group and management method for integrated management system |
| CN203821990U (en) * | 2014-04-27 | 2014-09-10 | 国家电网公司 | Five-prevention lock for preventing recognition holes from being blocked |
| CN204332754U (en) * | 2014-12-31 | 2015-05-13 | 上海凯研机械设备有限公司 | Machinery five is anti-lock |
-
2014
- 2014-12-31 CN CN201410848630.4A patent/CN104576119B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6392170B1 (en) * | 2000-07-25 | 2002-05-21 | Eric J. Wechsler | Manually movable sliding actuator for toggle switch actuator including position retention structure |
| CN202347951U (en) * | 2011-08-17 | 2012-07-25 | 上海凯研机械设备有限公司 | Encoding type safe mechanical interlocking system |
| CN102622802A (en) * | 2012-04-17 | 2012-08-01 | 珠海华伟电气科技股份有限公司 | Integrated management system of power microcomputer anti-misoperation and intelligent lock group and management method for integrated management system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870971A (en) * | 2016-05-31 | 2016-08-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Anti-misoperation locking system and method for power plant |
| CN106783282A (en) * | 2016-12-13 | 2017-05-31 | 中车长春轨道客车股份有限公司 | A kind of simple EMU driver master keys device for preventing unwanted operation |
| CN107309088A (en) * | 2017-08-02 | 2017-11-03 | 福建龙净环保股份有限公司 | A kind of interlock and detection method |
| CN107309088B (en) * | 2017-08-02 | 2023-06-16 | 福建龙净环保股份有限公司 | Interlocking device and detection method |
| CN109681635A (en) * | 2018-12-27 | 2019-04-26 | 安徽响水涧抽水蓄能有限公司 | One kind prevents Pressure container manhole door band from holding up deployment method |
| CN109681635B (en) * | 2018-12-27 | 2020-03-27 | 安徽响水涧抽水蓄能有限公司 | Method for preventing pressure vessel manhole door from being mistakenly opened under pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104576119B (en) | 2016-09-28 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Mechanical five prevention lock Effective date of registration: 20221028 Granted publication date: 20160928 Pledgee: Industrial Bank Co.,Ltd. Shanghai Songjiang sub branch Pledgor: SHANGHAI KAIYAN MACHINERY EQUIPMENT CO.,LTD. Registration number: Y2022310000303 |
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Date of cancellation: 20231113 Granted publication date: 20160928 Pledgee: Industrial Bank Co.,Ltd. Shanghai Songjiang sub branch Pledgor: SHANGHAI KAIYAN MACHINERY EQUIPMENT CO.,LTD. Registration number: Y2022310000303 |
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Denomination of invention: Mechanical five proof lock Effective date of registration: 20231115 Granted publication date: 20160928 Pledgee: Industrial Bank Co.,Ltd. Shanghai Songjiang sub branch Pledgor: SHANGHAI KAIYAN MACHINERY EQUIPMENT CO.,LTD. Registration number: Y2023310000745 |
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