CN109217185A - The method for not powering off safety transfer for ensuring sewage treatment plant's cable - Google Patents
The method for not powering off safety transfer for ensuring sewage treatment plant's cable Download PDFInfo
- Publication number
- CN109217185A CN109217185A CN201811041774.3A CN201811041774A CN109217185A CN 109217185 A CN109217185 A CN 109217185A CN 201811041774 A CN201811041774 A CN 201811041774A CN 109217185 A CN109217185 A CN 109217185A
- Authority
- CN
- China
- Prior art keywords
- cable
- sewage treatment
- treatment plant
- ensuring
- steel pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Electric Cable Installation (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The method that the invention discloses a kind of not to power off safety transfer for ensuring sewage treatment plant's cable, comprising the following steps: formulate arrangement and method for construction, prepare equipment and tool required for constructing；Original buried cable is positioned according to design drawing, and carries out unwrapping wire in position location；Former cable is dug out according to the position of unwrapping wire in abovementioned steps；The cable dug out in abovementioned steps is removed into former cable duct, and setting is fixed temporarily protective device and protects to cable；Excavate new cable ditch；It removes cable and is fixed temporarily protective device, and cable is moved into new cable ditch；Steel pipe is extracted to cable to protect, and takes fireproof blocking；Backfilling of earthwork is carried out to new cable ditch；The present invention effectively avoids the stoppage in transit of sewage treatment plant, during sewage treatment plant's reorganization and expansion, ensure that the normal operation processing of sewage.
Description
Technical field
The present invention relates to sewage treatment plant's reorganization and expansion fields, and in particular to one kind is for ensuring that sewage treatment plant's cable is continuous
The method of electric safety transfer.
Background technique
In recent years, since water resource is more paid attention in the waste of industrial wastewater discharge and water resource, let us, China is successively
The execution standard for Drinking Water, sewage and industrial wastewater is promulgated.There is the restriction of these standards, allows sewage cannot be again
Disorderly discharge, sewage treatment bring many benefits for our life；1) improve water quality, handled by domestic sewage treatment device
Sewage, make the pollution level sharp fall of water, whether discharge or reuse, standard can be reached；2) improve ecology
Environment, untreated sewage discharge not only pollute the environment into river, are also brought along to people's lives with water quality
Adverse effect；3) promote water circulation system, the Natural Circulation of water is the nonequilibrium open system with institutional framework, the society of water
Circulation is that have the balance system of artificial organ structure.
With the development of urbanization of population, more and more populations flock together, Drinking Water, sewage and work
The discharge amount of industry waste water is increasing, certainly will may require that the processing capacity of sewage treatment plant steps up, when sewage treatment plant
After processing capacity reaches capacity, in order to guarantee the normal processing of sewage, generally all can on the basis of original sewage treatment plant into
Row reorganization and expansion, main electrical equipment is exactly various water pumps in sewage treatment plant, in the reorganization and expansion process for carrying out sewage treatment plant
In, it needs to be laid out the distribution of water pump again or increases corresponding pump equipment, the resettlement of the electrical equipments such as existing water pump
Cheng Zhong, the method taken cable are mainly two kinds: 1) replacing new cable, rewiring；2) original cable is dug out, weight
New position is arrived in new resettlement；There are some problems in the two methods, such as replace new cable, rewiring, first this kind of method because
To need to re-lay cable, undoubtedly increase the expense of cable replacement certainly, secondly, the cable of the electrical equipments such as some water pumps needs
Professional customization is wanted, period production time is longer, influences construction speed；Second method needs prolonged power failure operation, needs
A period of time is stagnated into sewage treatment, this certainly will will cause the great pressure of sewage treatment plant's treatment sewage, serious person's meeting
The problem of causing sewage pollution environment.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of for ensuring that sewage treatment plant's cable does not power off safety transfer
Method, during sewage treatment plant's reorganization and expansion, water pump etc. correlation electrical equipment carry out entirety in case of constant power
Resettlement, guarantee safety do not stop transport in the case where, be also able to achieve the saving of cost.
To achieve the above object, The technical solution adopted by the invention is as follows:
The method for not powering off safety transfer for ensuring sewage treatment plant's cable, comprising the following steps:
S1: formulating arrangement and method for construction, prepares equipment and tool required for constructing；
S2: confirming the control switch of cable, and be identified with clear mark, is buried according to design drawing to original
Ground cable is positioned, and carries out unwrapping wire in position location；
S3: former cable is dug out according to the position of unwrapping wire in S2；
S4: removing former cable duct for the cable dug out in step S3, and is arranged and is fixed temporarily protective device to cable progress
Protection；
S5: new cable ditch is excavated；
S6: it removes cable and is fixed temporarily protective device, and cable is moved into new cable ditch；
S7: the cable position passed by one's way to needs is extracted steel pipe and is protected, and takes fireproof blocking；
S8: backfilling of earthwork is carried out to new cable ditch, completes construction.
Further, it is comprised the steps of: in the step S3
S31: according to the position of unwrapping wire in step S2, road surface cutting is carried out using cutting machine；
S32: mixed mud surface layer staged and layered is chiseled, and using excavator excavate soil, chisel standard according to width ×
Depth≤150mm × 200mm standard；
S33: construction personnel dresses good protection insulation dress ornament, first examines whether the cable dug out charges with electroscope, then adopt
Manually by cable pipeline concrete pack protective layer carry out layering chisel, chisel standard according to width x depth≤150mm ×
The standard of 200mm；
S34: using the cable progress manually by the cable chiseled in step S33 progress by root cleaning, and to there is breakage
The processing of crust package, the crust package processing method is first to wind mackintosh, then in winding exhaust gas cable skin and electricity consumption
Work adhesive plaster is sealed.
Further, the method that cable removes former cable duct in the step S4 is the cable rope made of hemp that will first clean up
It is tied up, then in such a way that calabash takes turns and hooks the rope made of hemp, cable is removed from former cable duct, it is described to be fixed temporarily protective device
Using the wooden springboard of wide 250mm × thickness 40mm and long 2000mm × wide 1000mm bamboo slab rubber.
Further, new cable ditch is excavated in the step S5 to be excavated using excavator.
Further, to partial cables of passing by one's way in the step S7, when extracting steel pipe and being protected, including following operation step
It is rapid:
S71: the steel pipe met the requirements is chosen；
S72: the steel pipe that will have been chosen, into two using cutting machine cutting；
S73: using cutting steel pipe into two, after cable is wrapped up, alignment splicing, and with electric welding machine by its splicing seams into
Row welding；
S74: the steel pipe being welded is encapsulated using mixed mud C30.
In order to guarantee the safety of construction, the operation of all pairs of cables in step S1-S8 confirms cable using electroscope first
Whether charge, and all constructing operation personnel wear insulating glove, insulation clothing and insulated shoes when carrying out constructing operation, avoid electricity
The accident that cable electric leakage is hurted sb.'s feelings.
Compared with prior art, the invention has the following advantages:
(1) present invention realizes the safety transfer that cable does not power off, and the stoppage in transit of sewage treatment plant is effectively avoided, in dirt
During water treatment plant's reorganization and expansion, the normal operation processing of sewage ensure that.
(2) present invention moves original cable to new cable duct, the only migration of cable, without being related to
The replacement of cable thus greatly reduces the cost of cable resettlement, with good economic efficiency.
(3) present invention is during carrying out cable resettlement, while implementing and checking the breakage of cable, and to breakage
Position has carried out winding mackintosh, then the operation for winding exhaust gas cable skin and being sealed with electrical adhesive tape, to former cable into
It has gone secondary Inspection and maintenance, has effectively raised the service life of cable.
(4) present invention is carried out at cable excavation when carrying out cable excavation using mechanical and artificial mutual auxiliary
Reason both ensure that the efficiency that cable excavates, and also ensure cable from mechanical injury.
(5) present invention is when removing cable, equipped with protective device is fixed temporarily, after its removal to cable, new cable ditch
The injury for effectively avoiding the damage of cable when not excavating again and leaking electricity to personnel.
Detailed description of the invention
Fig. 1 is construction process block diagram of the present invention.
Specific embodiment
The invention will be further described with embodiment for explanation with reference to the accompanying drawing, and mode of the invention includes but not only limits
In following embodiment.
The method for not powering off safety transfer for ensuring sewage treatment plant's cable, comprising the following steps:
S1: formulating arrangement and method for construction, prepares equipment and tool required for constructing, gives training to construction personnel, and training
It is examined after having instructed, can be constructed after examination is qualified；It is on duty again after examination is qualified, ensure that the safety in work progress, have
Conducive to constructing for operator's safety standard, the efficiency of construction is improved；
S2: checking the equipment in use for the cable that needs migrate, confirm whether it runs well, meanwhile, confirm it
The control switch of cable, and be identified with the mark of clear and definite, it can be powered off in time after guaranteeing operator's maloperation electric shock；
Original buried cable is positioned according to design drawing, and carries out unwrapping wire in position location；When unwrapping wire, with albarium or its
Its eye-catching innocuous substance identifies trend and the position of cable.
S3: former cable is dug out according to the position of unwrapping wire in S2；
It digs out cable to follow the steps below, S31: road surface cutting is carried out using cutting machine；S32: using will manually mix
Soil surface layer staged and layered is chiseled, and using excavator excavate soil, chisel standard according to width x depth≤150mm ×
The standard of 200mm；S33: being chiseled using cable pipeline concrete pack protective layer is manually carried out layering, using mechanical and artificial
Mutual auxiliary carry out cable excavation processing, both ensure that the efficiency that cable excavates, also ensure cable from mechanical injury,
Standard is chiseled according to width x depth≤150mm × 200mm standard；S34: using the cable that will manually be chiseled in step S33
Clear up by root, and to there is damaged cable to carry out the processing of crust package, the crust package processing method is first to wind
Then mackintosh is winding exhaust gas cable skin and is being sealed with electrical adhesive tape, carrying out secondary inspection to former cable and tieed up
Shield, effectively raises the service life of cable.
S4: removing former cable duct for the cable dug out in step S3, and is arranged and is fixed temporarily protective device to cable progress
Protection；During cable removes, first the cable cleaned up is tied up with the rope made of hemp, then the rope made of hemp is hooked using calabash wheel
Mode removes cable from former cable duct, and the protective device that is fixed temporarily is jumped using the wood of 250mm (width) × 40mm (thickness)
Plate and 2000mm (length) × 1000mm (width) bamboo slab rubber.
S5: new cable ditch is excavated；To improve the efficiency excavated, excavated when excavating new cable ditch using excavator.
S6: it removes cable and is fixed temporarily protective device, and cable is moved into new cable ditch；Cable is moved into new cable again
When ditch, moved into also according to the method for step S4.
S7: the cable position passed by one's way to needs is extracted steel pipe and is protected, and fireproof blocking is taken to extract steel pipe to cable
It is protected；When extracting steel pipe and being protected, including following operating procedure:
S71: the steel pipe met the requirements is chosen；
S72: the steel pipe that will have been chosen, into two using cutting machine cutting；
S73: using cutting steel pipe into two, after cable is wrapped up, alignment splicing, and with electric welding machine by its splicing seams into
Row welding, when welding, need for weld seam and cable to be isolated by thermal insulation board, prevent the high temperature being welded from causing to damage to cable.
S8: carrying out backfilling of earthwork to new cable ditch, and in order to guarantee the safe operation of personnel, the operation of all pairs of cables is first
First using electroscope confirmation cable whether charge, and all constructing operation personnel worn when carrying out constructing operation insulating glove,
Insulation clothing and insulated shoes, the accident for avoiding cable leakage from hurting sb.'s feelings.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit protection model of the invention
It encloses, as long as that in body design thought of the invention and mentally makes has no the change of essential meaning or polishing, is solved
The technical issues of it is still consistent with the present invention, should all be included within protection scope of the present invention.
Claims (6)
1. for ensuring the method that sewage treatment plant's cable does not power off safety transfer, which comprises the following steps:
S1: formulating arrangement and method for construction, prepares equipment and tool required for constructing；
S2: confirm the control switch of cable, and be identified with clear mark, according to design drawing to original buried electricity
Cable is positioned, and carries out unwrapping wire in position location；
S3: former cable is dug out according to the position of unwrapping wire in S2；
S4: the cable dug out in step S3 is removed into former cable duct, and setting is fixed temporarily protective device and protects to cable；
S5: new cable ditch is excavated；
S6: it removes cable and is fixed temporarily protective device, and cable is moved into new cable ditch；
S7: the cable position passed by one's way to needs is extracted steel pipe and is protected, and takes fireproof blocking；
S8: backfilling of earthwork is carried out to new cable ditch, completes construction.
2. according to claim 1 for ensuring that the method that sewage treatment plant's cable does not power off safety transfer, feature exist
In being comprised the steps of: in the step S3
S31: according to the position of unwrapping wire in step S2, road surface cutting is carried out using cutting machine；
S32: mixed mud surface layer staged and layered is chiseled, and excavates soil using excavator, chisels standard according to width x depth
The standard of≤150mm × 200mm；
S33: construction personnel dresses good protection insulation dress ornament, first examines whether the cable dug out charges with electroscope, then uses people
Cable pipeline concrete pack protective layer is carried out layering and chiseled by work, chisels standard according to width x depth≤150mm × 200mm
Standard；
S34: using and manually clear up by root by the cable chiseled in step S33, and carries out crust to the cable for having breakage
Package processing, crust package processing method is first to wind mackintosh, then in winding exhaust gas cable skin and with electrician's glue
Cloth is sealed.
3. according to claim 2 for ensuring that the method that sewage treatment plant's cable does not power off safety transfer, feature exist
In the method that cable removes former cable duct in the step S4 is first to tie up the cable cleaned up with the rope made of hemp, then adopt
With calabash take turns hook the rope made of hemp mode, cable is removed from former cable duct, it is described be fixed temporarily protective device using width 250mm ×
The wooden springboard of thick 40mm and long 2000mm × wide 1000mm bamboo slab rubber.
4. according to claim 3 for ensuring that the method that sewage treatment plant's cable does not power off safety transfer, feature exist
In excavation new cable ditch is excavated using excavator in the step S5.
5. according to claim 4 for ensuring that the method that sewage treatment plant's cable does not power off safety transfer, feature exist
In, to partial cables of passing by one's way in the step S7, when extracting steel pipe and being protected, including following operating procedure:
S71: the steel pipe met the requirements is chosen；
S72: the steel pipe that will have been chosen, into two using cutting machine cutting；
S73: using the steel pipe of cutting into two, after cable is wrapped up, alignment splicing, and welded its splicing seams with electric welding machine
It connects；
S74: the steel pipe being welded is encapsulated using mixed mud C30.
6. according to claim 1 for ensuring that sewage treatment plant's cable does not power off the side of safety transfer described in -5 any one
Method, which is characterized in that whether the operation of all pairs of cables in step S1-S8 is charged using electroscope confirmation cable first, and institute
There are constructing operation personnel to wear insulating glove, insulation clothing and insulated shoes when carrying out constructing operation, cable leakage is avoided to hurt sb.'s feelings
Accident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041774.3A CN109217185B (en) | 2018-09-07 | 2018-09-07 | Method for ensuring safe transfer of sewage treatment plant cable without power failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041774.3A CN109217185B (en) | 2018-09-07 | 2018-09-07 | Method for ensuring safe transfer of sewage treatment plant cable without power failure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109217185A true CN109217185A (en) | 2019-01-15 |
| CN109217185B CN109217185B (en) | 2020-11-06 |
Family
ID=64987093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811041774.3A Active CN109217185B (en) | 2018-09-07 | 2018-09-07 | Method for ensuring safe transfer of sewage treatment plant cable without power failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109217185B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783878A (en) * | 2019-10-12 | 2020-02-11 | 福建省鸿官通信工程有限公司 | Optical cable migration method |
| CN111585239A (en) * | 2020-05-26 | 2020-08-25 | 中国建筑第八工程局有限公司 | Construction method for airport pipeline relocation and transformation without stopping navigation |
| CN116742532A (en) * | 2023-06-29 | 2023-09-12 | 中建八局第一建设有限公司 | Temporary power cable landfill method and auxiliary device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201018221Y (en) * | 2007-02-02 | 2008-02-06 | 余晓峰 | Device for electric network live operation |
| CN103132710A (en) * | 2011-12-01 | 2013-06-05 | 吉林省电力有限公司辽源供电公司 | Method of electriferous integral moving of iron tower of 500-kV electric transmission line |
| CN104319698A (en) * | 2014-11-10 | 2015-01-28 | 国网河南省电力公司济源供电公司 | Method for handling breakage of insulation sleeve of cable head rapidly |
| CN106337688A (en) * | 2015-07-13 | 2017-01-18 | 中铁第六勘察设计院集团有限公司 | Sleeved inner liner reinforcing structure for electrical operation of cable tunnel and construction method thereof |
-
2018
- 2018-09-07 CN CN201811041774.3A patent/CN109217185B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201018221Y (en) * | 2007-02-02 | 2008-02-06 | 余晓峰 | Device for electric network live operation |
| CN103132710A (en) * | 2011-12-01 | 2013-06-05 | 吉林省电力有限公司辽源供电公司 | Method of electriferous integral moving of iron tower of 500-kV electric transmission line |
| CN104319698A (en) * | 2014-11-10 | 2015-01-28 | 国网河南省电力公司济源供电公司 | Method for handling breakage of insulation sleeve of cable head rapidly |
| CN106337688A (en) * | 2015-07-13 | 2017-01-18 | 中铁第六勘察设计院集团有限公司 | Sleeved inner liner reinforcing structure for electrical operation of cable tunnel and construction method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 侯树山: "高压电缆带电移位技术保护措施探讨", 《科技信息》 * |
| 沈黎明: "《电力电缆施工、运行与维护》", 31 January 2013, 中国电力出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783878A (en) * | 2019-10-12 | 2020-02-11 | 福建省鸿官通信工程有限公司 | Optical cable migration method |
| CN110783878B (en) * | 2019-10-12 | 2020-12-08 | 福建省鸿官通信工程有限公司 | Optical cable migration method |
| CN111585239A (en) * | 2020-05-26 | 2020-08-25 | 中国建筑第八工程局有限公司 | Construction method for airport pipeline relocation and transformation without stopping navigation |
| CN111585239B (en) * | 2020-05-26 | 2021-02-19 | 中国建筑第八工程局有限公司 | Construction method for airport pipeline relocation and transformation without stopping navigation |
| CN116742532A (en) * | 2023-06-29 | 2023-09-12 | 中建八局第一建设有限公司 | Temporary power cable landfill method and auxiliary device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109217185B (en) | 2020-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109217185A (en) | The method for not powering off safety transfer for ensuring sewage treatment plant's cable | |
| CN109024674A (en) | Underground pipe gallery passes through protection underground utilities construction method | |
| CN111156006A (en) | Construction method for shield underpass of dangerous pipeline | |
| CN107574834A (en) | A kind of old basic transformation reinforcement means of power machine | |
| CN105546278A (en) | Method for protecting underground pipeline during pipe ditch excavation | |
| CN104577364A (en) | Small-resistance-value grounding grid of large device and design construction method | |
| CN105862711B (en) | A kind of hydraulic reclamation device and method for being used to cover mud sealing stabilization by drainage | |
| CN111764373A (en) | Construction method of underground continuous wall under condition of non-removable underground barrier | |
| CN210766953U (en) | Urban underground river dredging system | |
| CN203895933U (en) | Cable protective sleeve | |
| CN107061865B (en) | A kind of new old pipeline of sewage treatment plant's heavy caliber does not stop production the method for meeting and discussing | |
| CN209452010U (en) | A kind of mobile crushing station of driven by two energy sources | |
| CN209654048U (en) | A kind of water discharge tunnel tunnel shielding portal pre-buried structure | |
| CN206997267U (en) | Pipeline sundries cleaning device | |
| CN106565021B (en) | Pipeline construction method for ecological wetland | |
| CN110756570A (en) | Subsurface excavation remediation method for deep polluted soil | |
| CN109914319A (en) | A kind of construction site fugitive dust control method based on BIM technology | |
| CN219033359U (en) | Underwater excavator | |
| CN214798382U (en) | Gate-type waterproof switch box capable of being embedded in end of beam-making pedestal | |
| Cai et al. | Innovation and Creativity Proposal for Sha Tin Water Treatment Works in Hong Kong | |
| CN109826643B (en) | Pre-buried structure of drainage tunnel shield tunnel portal | |
| CN216075299U (en) | Novel equipment is collected to cable pit filler | |
| CN204059330U (en) | A kind of channel climbing rolling machine | |
| Gao | A emergency power equipment design of direct current full hydraulic tunnel for coal mine | |
| CN201466640U (en) | Protection plate of cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 610000 No. 147 Qintai Road, Qingyang District, Chengdu City, Sichuan Province Applicant after: Chengdu Construction Industry Equipment Installation Co., Ltd. Address before: 610000 No. 147 Qintai Road, Qingyang District, Chengdu City, Sichuan Province Applicant before: Chengdu Industry Equipment Installation Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |