CN113233391B - Slide rope overhead working tractor - Google Patents
Slide rope overhead working tractor Download PDFInfo
- Publication number
- CN113233391B CN113233391B CN202110378686.8A CN202110378686A CN113233391B CN 113233391 B CN113233391 B CN 113233391B CN 202110378686 A CN202110378686 A CN 202110378686A CN 113233391 B CN113233391 B CN 113233391B
- Authority
- CN
- China
- Prior art keywords
- traction
- sliding
- shell
- mechanisms
- driving
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000009194 climbing Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F13/00—Common constructional features or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Electric Cable Installation (AREA)
- Handcart (AREA)
Abstract
The invention discloses a sliding cable overhead working tractor which comprises a shell, wherein the front end of the shell is provided with a hanging and buckling mechanism for connecting sliding cable equipment; traction mechanisms climbing along the sliding rope are arranged on two sides of the inner part of the shell, the traction mechanisms are connected with locking mechanisms for pressing the sliding rope, and the traction mechanisms are connected with driving mechanisms through transmission mechanisms; the traction mechanism comprises a driving wheel, a driving belt and traction chain pieces which are uniformly arranged on the driving belt at intervals; the driving wheel is connected with a driving mechanism through a driving shaft, one side of the traction chain piece is correspondingly provided with a compression roller, and the compression roller is provided with a roller rotating shaft; a gap for passing through the sliding rope is arranged between the traction chain piece and the compression roller, and a sliding rope embedding groove is arranged below the gap on the shell; the invention can carry out quick traction operation on the sliding rope of the load hanging equipment for high-altitude operation, and the sliding rope is efficiently towed by the motor-driven traction mechanism; and the tightness fit of the traction degree can be flexibly adjusted, so that the stable control of the traction speed and the safety performance is realized.
Description
Technical Field
The invention belongs to the field of load hanging equipment devices, and particularly relates to a sliding cable overhead working tractor.
Background
Currently, unpowered amusement rides (slide ropes) in China are also known as "quick slide", "quick drop", "flying man in the air", and the like. The device is used for mountain self-rescue and military assault operation at the earliest, and then evolves into recreation facilities, so that the device is a modern device with challenges, irritation and entertainment. Can travel down grasslands, lakes, rivers, canyons, and by means of the height difference, from the departure station to the arrival station at a relatively high speed. So that tourists feel stimulation and satisfaction in happy and frightened and unharmful life.
In the same high-altitude operation project, a sliding rope device or a high-altitude line type carrying hanging device similar to a sliding rope is also needed; the device has the advantages of low erection and maintenance cost and higher object transportation efficiency when being used as a load hanger.
When the sliding rope needs to be overhauled or articles are carried, a power traction mechanism is indispensable; the stability and the safety of the operation of the traction device are more important under the influence of the natural factor of high altitude; for the existing slide rope overhead working field, the traction equipment and the load hanging equipment on the slide rope are not flexible and stable enough, and for the slide ropes of different types and even different sections, the thickness degree is different, the degree of the cooperation with the traction equipment is also different, the power transmission efficiency of the traction process can be influenced due to the fact that the degree of the cooperation cannot be flexibly adjusted, and even safety problems can be seriously generated.
Disclosure of Invention
The invention aims to solve the problems and provide a sliding rope overhead working truck which can carry out quick traction operation on a sliding rope on load hanging equipment for overhead working and efficiently traction the sliding rope through a motor-driven traction mechanism; and the tightness fit of the traction degree can be flexibly adjusted, so that the stable control of the traction speed and the safety performance is realized.
In order to achieve the above purpose, the invention adopts the following technical scheme: the sliding rope overhead working tractor comprises a shell, wherein the front end of the shell is provided with a hanging buckle mechanism for connecting sliding rope equipment; traction mechanisms for climbing the sliding rope are arranged on two sides of the inner part of the shell, the traction mechanisms are connected with locking mechanisms for pressing the sliding rope, and the traction mechanisms are connected with driving mechanisms through transmission mechanisms; the traction mechanism comprises a driving wheel, a driving belt and traction chain sheets which are uniformly arranged on the driving belt at intervals; the driving wheel is connected with a driving mechanism through a driving shaft, one side of the traction chain piece is correspondingly provided with a compression roller, and the compression roller is provided with a roller rotating shaft; a gap for passing through the sliding rope is formed between the traction chain piece and the compression roller, and a sliding rope embedding groove is formed below the gap in the shell; the locking mechanism comprises a compression block and a compression push rod, one end of the compression block is hinged with the rotating shaft of the roller, and the compression push rod is hinged with the compression block; one end of the pressing push rod is connected with a locking rod, and the pressing push rods on two sides are jointly hinged with the locking rod positioned in the center; a pressing roller chute perpendicular to the sliding rope is arranged on the shell, and a roller rotating shaft capable of sliding left and right is arranged in the pressing roller chute; the shell is provided with a locking rod chute parallel to the sliding rope, a locking rod capable of sliding back and forth is arranged in the locking rod chute, and a locking bolt structure for limiting and adjusting is arranged between the locking rod and the locking rod chute.
Further, a handle is arranged on the locking rod.
Further, the hanging and buckling mechanism comprises a connecting seat arranged at the front end of the shell, a groove is formed in the front of the connecting seat, a rotating rod is transversely arranged in the groove, a hook capable of rotating back and forth is movably connected to the rotating rod, and a top block is arranged at one end of the hook at a position corresponding to a transverse rod of the sliding rope device; the connecting seat is provided with a limiting seat for limiting the reverse rotation of the hook at the rear of the upper part of the hook.
Further, the traction chain pieces are hinged in pairs and are closed end to end; the side surface of the traction chain piece is concave and rough and is matched with the outline of the outer edge of the pressing roller.
Further, lighting equipment is arranged below the shell, and intercom equipment is arranged on the shell.
Further, the transmission mechanism is a chain wheel and chain transmission structure.
Further, the driving mechanism is a rotary driving motor.
Further, the shell rear end is provided with the connecting cable, the connecting cable comprises inside electricity connecting wire and outside traction cover.
The invention has the beneficial effects that:
1. the device can carry out quick traction operation on the sliding rope of the load hanging equipment for high-altitude operation, stably and efficiently traction the sliding rope through the motor-driven traction mechanism, and no manual operation is needed; meanwhile, the sliding cable device is automatically connected with the hanging mechanism to reach the appointed operation position, and finally an operator drives the device to pull the load hanging device through controlling the driving mechanism, so that the safe and stable high-efficiency and reliable sliding cable power traction high-altitude operation process can be realized.
2. The locking mechanism in the device can realize the assembly and disassembly actions on the sliding rope, and can adjust the clamping degree of the device and the sliding rope when being assembled and used, thereby maximally improving the use convenience and the operation reliability of the device.
3. The hanging buckle mechanism in the device can be arranged, and the hanging hook can rotate and be hung on the cross bar by touching the top block through the cross bar of the sliding rope device, so that automatic butt joint and stable connection are realized.
4. The intercom equipment and the lighting equipment in the device can realize instant and convenient communication between the high-altitude operation personnel and the ground commander, and simultaneously provide the function of signal lighting guidance in the foggy weather or in the darker environment.
Drawings
Fig. 1 is a schematic perspective view of the rear view of the device of the present invention.
Fig. 2 is a schematic top view of the device of the present invention.
Fig. 3 is a schematic front view of the device of the present invention.
Fig. 4 is a schematic perspective view of the front view of the device of the present invention.
Fig. 5 is a schematic internal perspective view of the device of the present invention.
Fig. 6 is a schematic perspective view of the lower view of the device of the present invention.
Fig. 7 is a schematic front view of a traction link 202 according to the present invention.
In the figure: 1. a housing; 2. a traction mechanism; 3. a hanging buckle mechanism; 4. a locking mechanism; 5. a driving mechanism; 6. a transmission mechanism; 7. a slide rope; 8. an intercom device; 9. a lighting device; 10. a connection cable; 101. the sliding rope is embedded into the groove; 102. compressing the roller chute; 103. a locking rod chute; 201. a transmission belt; 202. a traction chain; 203. a driving wheel; 204. a drive shaft; 205. a pressing roller; 206. a roller shaft; 301. a hook; 302. a connecting seat; 303. a top block; 304. a rotating lever; 305. a groove; 306. a limit seat; 401. a compaction block; 402. compressing the push rod; 403. a locking lever; 404. a lock bolt structure; 405. a handle.
Detailed description of the preferred embodiments
In order that those skilled in the art may better understand the technical solutions of the present invention, the following detailed description of the present invention with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present invention.
As shown in fig. 1 to 7, the specific structure of the present invention is: the traction vehicle for the aloft work of the sliding rope comprises a shell 1, wherein the front end of the shell 1 is provided with a hanging and buckling mechanism 3 used for connecting sliding rope equipment; traction mechanisms 2 along the sliding rope are arranged on two sides of the interior of the shell 1, the traction mechanisms 2 are connected with locking mechanisms 4 for pressing the sliding rope 7, and the traction mechanisms 2 are connected with driving mechanisms 5 through transmission mechanisms 6; the traction mechanism 2 comprises a driving wheel 203, a driving belt 201 and traction chain pieces 202 which are uniformly arranged on the driving belt 201 at intervals; the driving wheel 203 is connected with a driving mechanism 6 through a driving shaft 204, one side of the traction chain piece 202 is correspondingly provided with a pressing roller 205, and the pressing roller 205 is provided with a roller rotating shaft 206; a gap for passing through the sliding rope 7 is arranged between the traction chain piece 202 and the compression roller 205, and a sliding rope embedding groove 101 is arranged below the gap of the shell 1; the locking mechanism 4 comprises a pressing block 401 and a pressing push rod 402, one end of the pressing block 401 is hinged with the roller rotating shaft 206, and the pressing push rod 402 is hinged with the pressing block 401; one end of the pressing push rod 402 is connected with a locking rod 403, and the pressing push rods 402 on two sides are jointly hinged with the locking rod 403 positioned in the center; a pressing roller chute 102 perpendicular to the sliding rope 7 is arranged on the shell 1, and a roller rotating shaft 206 capable of sliding left and right is arranged in the pressing roller chute 102; the shell 1 is provided with a locking rod chute 103 parallel to the sliding rope 7, a locking rod 403 capable of sliding back and forth is arranged in the locking rod chute 103, and a locking bolt structure 404 for limiting and adjusting is arranged between the locking rod 403 and the locking rod chute 103.
Preferably, a handle 405 is provided on the locking bar 403.
In order to further realize automatic hooking and connecting of the device to the working position, the hooking mechanism 3 comprises a connecting seat 302 arranged at the front end of the shell 1, a groove 305 is arranged at the front part of the connecting seat 302, a rotating rod 304 is transversely arranged in the groove 305, a hook 301 capable of rotating forwards and backwards is movably connected to the rotating rod 304, and a top block 303 is arranged at one end of the hook 301 at a position corresponding to a cross rod of the sliding rope device; the connecting seat 302 is provided with a limiting seat 306 for limiting the reverse rotation of the hook 301 at the rear of the upper part of the hook 301.
In order to improve the connection tightness of the device and the sliding rope, the traction chain pieces 202 are hinged in pairs and are closed end to end; the sides of the traction links 202 are concave and rough and match the contour of the outer edges of the pinch rollers 205.
In order to further achieve communication with the high-altitude operators and provide auxiliary lighting functions, lighting equipment 9 is arranged below the shell 1, and intercom equipment 8 is arranged on the shell 1.
Preferably, the transmission mechanism 6 is a sprocket chain transmission structure.
Preferably, the driving mechanism 5 is a rotary driving motor.
In order to realize the functions of standby power supply and standby manual traction, the rear end of the shell 1 is provided with a connecting cable 10, and the connecting cable 10 consists of an internal electric connecting wire and an external traction sleeve.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this invention, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the invention, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present invention.
Claims (8)
1. The cable-sliding high-altitude operation tractor comprises a shell (1), and is characterized in that a hanging buckle mechanism (3) for connecting cable sliding equipment is arranged at the front end of the shell (1); traction mechanisms (2) climbing along the sliding rope are arranged on two sides of the interior of the shell (1), the traction mechanisms (2) are connected with locking mechanisms (4) pressing the sliding rope (7), and the traction mechanisms (2) are in transmission connection with driving mechanisms (5) through transmission mechanisms (6); the traction mechanism (2) comprises a driving wheel (203), a driving belt (201) and traction chain pieces (202) which are uniformly arranged on the driving belt (201) at intervals; the driving wheel (203) is connected with a driving mechanism (6) through a driving shaft (204), a compression roller (205) is correspondingly arranged on one side of the traction chain piece (202), and a roller rotating shaft (206) is arranged on the compression roller (205); a gap for passing through the sliding rope (7) is arranged between the traction chain piece (202) and the compression roller (205), and a sliding rope embedded groove (101) is arranged below the gap in the shell (1); the locking mechanism (4) comprises a pressing block (401) and a pressing push rod (402), one end of the pressing block (401) is hinged with the roller rotating shaft (206), and the pressing push rod (402) is hinged with the pressing block (401); one end of the pressing push rod (402) is connected with a locking rod (403), and the pressing push rods (402) on two sides are jointly hinged with the locking rod (403) positioned at the center; a pressing roller chute (102) perpendicular to the sliding rope (7) is arranged on the shell (1), and a roller rotating shaft (206) capable of sliding left and right is arranged in the pressing roller chute (102); the locking mechanism is characterized in that a locking rod sliding groove (103) parallel to the sliding rope (7) is formed in the shell (1), a locking rod (403) capable of sliding back and forth is arranged in the locking rod sliding groove (103), and a locking bolt structure (404) for limiting and adjusting is arranged between the locking rod (403) and the locking rod sliding groove (103).
2. A ski lift truck according to claim 1, characterized in that the locking lever (403) is provided with a handle (405).
3. The slide cable high-altitude operation tractor according to claim 1, wherein the hanging buckle mechanism (3) comprises a connecting seat (302) arranged at the front end of the shell (1), a groove (305) is arranged at the front part of the connecting seat (302), a rotating rod (304) is transversely arranged in the groove (305), a hook (301) capable of rotating forwards and backwards is movably connected on the rotating rod (304), and a top block (303) is arranged at one end of the hook (301) at a position corresponding to a cross rod of the slide cable device; the connecting seat (302) is provided with a limiting seat (306) for limiting the reverse rotation of the hook (301) at the rear of the upper part of the hook (301).
4. A ski lift truck according to claim 1, characterized in that the traction links (202) are hinged in pairs and are closed end to end; the side surface of the traction chain piece (202) is concave and rough, and is matched with the outline of the outer edge of the pressing roller (205).
5. A slide cable aloft work tractor according to claim 1, characterized in that a lighting device (9) is arranged below the housing (1), and that an intercom device (8) is arranged on the housing (1).
6. A ski lift truck according to claim 1, characterized in that the transmission (6) is a sprocket and chain transmission.
7. A ski lift truck according to claim 1, characterized in that the drive mechanism (5) is a rotary drive motor.
8. A sliding cable aloft work tractor according to claim 1, characterized in that the rear end of the housing (1) is provided with a connecting cable (10), the connecting cable (10) consisting of an inner electrical connecting cable and an outer traction jacket.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110378686.8A CN113233391B (en) | 2021-04-08 | 2021-04-08 | Slide rope overhead working tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110378686.8A CN113233391B (en) | 2021-04-08 | 2021-04-08 | Slide rope overhead working tractor |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113233391A CN113233391A (en) | 2021-08-10 |
CN113233391B true CN113233391B (en) | 2023-12-26 |
Family
ID=77131149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110378686.8A Active CN113233391B (en) | 2021-04-08 | 2021-04-08 | Slide rope overhead working tractor |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113233391B (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1190828A (en) * | 1966-11-15 | 1970-05-06 | Giovanni Gunter Czaloun | Endless Track Drive Systems for Cable-Supported Vehicles |
JP2008174228A (en) * | 2007-01-16 | 2008-07-31 | Pomagalski Sa | Multiple sheave assembly system having sheave supporting and pressing rope for aerial ropeway transport device |
CN201544958U (en) * | 2009-11-06 | 2010-08-11 | 云南昆船设计研究院 | Guide wheel device with flexible compress function |
CN105946872A (en) * | 2016-06-08 | 2016-09-21 | 忻琦 | Rubber belt track clamping type single rail traveling system driven by double stepping motors |
CN107813832A (en) * | 2017-10-20 | 2018-03-20 | 能诚集团有限公司 | A kind of cable car hanging mechanism |
CN208181053U (en) * | 2018-03-30 | 2018-12-04 | 北京艾力泰尔信息技术股份有限公司 | From driving double rail type flow measurement vehicle |
CN110901662A (en) * | 2019-12-05 | 2020-03-24 | 赵教先 | Cable car equipment |
CN112193258A (en) * | 2020-10-16 | 2021-01-08 | 长沙理工大学 | Working method of transportation system |
CN112319510A (en) * | 2020-11-18 | 2021-02-05 | 娄底市同丰科技有限公司 | Floor type overhead passenger device |
-
2021
- 2021-04-08 CN CN202110378686.8A patent/CN113233391B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1190828A (en) * | 1966-11-15 | 1970-05-06 | Giovanni Gunter Czaloun | Endless Track Drive Systems for Cable-Supported Vehicles |
JP2008174228A (en) * | 2007-01-16 | 2008-07-31 | Pomagalski Sa | Multiple sheave assembly system having sheave supporting and pressing rope for aerial ropeway transport device |
CN201544958U (en) * | 2009-11-06 | 2010-08-11 | 云南昆船设计研究院 | Guide wheel device with flexible compress function |
CN105946872A (en) * | 2016-06-08 | 2016-09-21 | 忻琦 | Rubber belt track clamping type single rail traveling system driven by double stepping motors |
CN107813832A (en) * | 2017-10-20 | 2018-03-20 | 能诚集团有限公司 | A kind of cable car hanging mechanism |
CN208181053U (en) * | 2018-03-30 | 2018-12-04 | 北京艾力泰尔信息技术股份有限公司 | From driving double rail type flow measurement vehicle |
CN110901662A (en) * | 2019-12-05 | 2020-03-24 | 赵教先 | Cable car equipment |
CN112193258A (en) * | 2020-10-16 | 2021-01-08 | 长沙理工大学 | Working method of transportation system |
CN112319510A (en) * | 2020-11-18 | 2021-02-05 | 娄底市同丰科技有限公司 | Floor type overhead passenger device |
Also Published As
Publication number | Publication date |
---|---|
CN113233391A (en) | 2021-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108110676B (en) | Overhead line inspection and obstacle removal robot | |
CN110733018B (en) | Butt-joint type wire feeding and discharging mechanism for electric power robot and application method of butt-joint type wire feeding and discharging mechanism | |
CN105197808A (en) | Building block charging crane | |
CN113233391B (en) | Slide rope overhead working tractor | |
CN110061447A (en) | A kind of power transmission lines overhauling is with can obstacle detouring electric aerodyne | |
CN112600123B (en) | High-voltage cable inspection instrument based on electric power safety and inspection method thereof | |
CN112510575A (en) | Operation trolley for power transmission line | |
CN208666912U (en) | A kind of electronic anchoring device of rail-mounted gantry container crane trolley | |
CN203820325U (en) | Loading and unloading machine, vehicle-mounted type loading and unloading car and walking type loading and unloading car | |
CN114314157A (en) | Cable unwrapping wire tractive device | |
CN104958874A (en) | Support system of electric foot clasp | |
CN201320363Y (en) | Fire-fighting on-vehicle tangential belt laying truck | |
CN205189731U (en) | Novel maintenance ladder | |
CN211685065U (en) | Special release device of coaster of slide cable amusement facility | |
CN211209114U (en) | Cable trench inspection trolley and track for transformer substation | |
CN217246690U (en) | Walking trolley device of sky swing | |
CN209351522U (en) | A kind of bindiny mechanism at novel electric tricycle back door and side door | |
CN202345679U (en) | Powered mobile rope clip | |
CN108640051B (en) | Insulating lifting device | |
CN220536946U (en) | Automatic conveying device for train tails | |
CN208411911U (en) | Civil engineering cheats transport device with stake | |
CN2239825Y (en) | Sliding life-saving appliance | |
CN218567705U (en) | Electric traction sliding chair for construction of overhead optical cable | |
CN109616931A (en) | A kind of transformer substation robot obstacle detouring assistance platform | |
CN220002788U (en) | Electric climbing power overhead line pole tower device |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |