CN107984446A - Portable dam case apparatus is used in a kind of pylon maintenance - Google Patents
Portable dam case apparatus is used in a kind of pylon maintenance Download PDFInfo
- Publication number
- CN107984446A CN107984446A CN201710964594.1A CN201710964594A CN107984446A CN 107984446 A CN107984446 A CN 107984446A CN 201710964594 A CN201710964594 A CN 201710964594A CN 107984446 A CN107984446 A CN 107984446A
- Authority
- CN
- China
- Prior art keywords
- babinet
- outline border
- fixedly connected
- case apparatus
- pylon
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments
- B25H3/02—Boxes
Abstract
The invention discloses a kind of pylon maintenance portable dam case apparatus, including babinet, the centre position of the bottom of the outer surface of the babinet is provided with deicing, the both sides of the bottom of the babinet are both provided with the first rotating roller, first rotating roller is through babinet and extends to the outside of babinet, the both ends of first rotating roller are rotatably connected to the first shifting roller, the both sides in the front and the back side of the babinet are fixedly connected with the second rotating roller by fixed block, the both ends of second rotating roller are rotatably connected to the second shifting roller, the inner cavity of the babinet is provided with placement room, safety device is provided with the top of the side of the outer surface of the babinet, the present invention relates to pylon maintenance technique field.Portable dam case apparatus is used in a kind of pylon maintenance, has achieveed the purpose that to be moved easily tool box, and carries out security protection to the pylon service personnel for carrying out working at height using the second air bag, to ensure its personal safety.
Description
Technical field
The present invention relates to pylon maintenance technique field, is specially that portable dam case apparatus is used in a kind of pylon maintenance.
Background technology
Pylon is mainly trapezoidal or the tower-like building of the shape such as triangle, its height is usually 25 to 40 meters, is steel
Frame structure, the power plants built in the wild, near power distribution station, it is the critical facility of power department, pylon energy trolley wire more
And play the role of protection and support to overhead line, and the design of electric power tower, manufacture, installation, maintenance and quality testing are existing
For Operation of Electric Systems and the important leverage of development.The maintenance repair maintenance work of pylon need to be improved at present, due to pylon
It is in field or the mountain ridge, therefore electrician carries out maintenance it and is inconvenient, and especially easily goes out in the winter circuit of ice-bound snow lid more
Existing problem, since maintenance tool is heavy, and hill path freezes easily sliding, causes maintenance personal to go up a hill and climbs to carrying out circuit in pylon
The work of maintenance is very difficult, while security risk is big.
The content of the invention
(1) technical problem solved
In view of the deficiencies of the prior art, the present invention provides a kind of pylon maintenance portable dam case apparatus, solve
Existing maintenance circuit personnel mountain-climbing, which is climbed to a higher point, carries out maintenance pylon not only inconvenient but also unsafe problem.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs：A kind of portable work of pylon maintenance
Has case apparatus, including babinet, the centre position of the bottom of the outer surface of the babinet are provided with deicing, the babinet
The both sides of bottom be both provided with the first rotating roller, first rotating roller is through babinet and extends to the outside of babinet, institute
The both ends for the first rotating roller stated are rotatably connected to the first shifting roller, and the front of the babinet is logical with the both sides at the back side
Cross fixed block and be fixedly connected with the second rotating roller, and the both ends of second rotating roller are rotatably connected to the second shifting roller,
The inner cavity of the babinet is provided with placement room, and security protection dress is provided with the top of the side of the outer surface of the babinet
Put, the top slide of the outer surface of the babinet is connected with sliding door, and the sliding door is close to safety device
The surface of side is fixedly connected with handle, in the top of the outer surface of the babinet and the side away from safety device
Between position be rotatably connected to push rod, the one end of the push rod away from babinet is fixedly connected with handrail, the front of the babinet
Draw ring is symmetrically arranged with the centre position at the top at the back side, the bottom of the both sides of the outer surface of the babinet passes through shaft
It is rotatably connected to perching knife.
Preferably, the deicing includes the first outline border, the interposition at the top of the inner cavity of first outline border
Put and be fixedly connected with the first cylinder, the bottom of first cylinder is fixedly connected with the first telescopic rod, and described first is flexible
The one end of bar away from the first cylinder is fixedly connected with the second outline border, and electricity is fixedly connected with the top of the inner cavity of second outline border
Machine, the turning end of the motor are rotatably connected to trash ice knife, and the centre position on the surface of the bottom of first outline border is opened
Equipped with opening, the both sides at the top of the inner cavity of first outline border are symmetrically arranged with air-heater by base.
Preferably, the safety device includes the 3rd outline border, in the top of the inner cavity of the 3rd outline border
Between position be fixedly connected with the second cylinder, the surface at the top of second cylinder is fixedly connected with the second telescopic rod, described
The surface of the one end of the second telescopic rod away from the second cylinder be fixedly connected with air storing cavity, the one of the inner cavity of the 3rd outline border
The surface of side is provided with air bag groove, and the inner cavity of the air bag groove is provided with the second air bag, the both sides of the air storing cavity
Centre position has been respectively communicated with the first gas tube and the second gas tube, and the one end of first gas tube away from air storing cavity with
Second air bag is connected, and one end of the first gas tube close to the air storing cavity is provided with the first charge valve, and described second fills
One end of tracheae close to air storing cavity is provided with the second charge valve, and described one end of the second gas tube away from air storing cavity is through the
Three outline borders and the outside for extending to the 3rd outline border.
Preferably, the surface of the bottom of the placement room is provided with instrument fixing groove, and the instrument fixing groove
The first air bag is provided between outer surface and the inner surface for disposing room.
Preferably, it is empty filled with rubber in the interlayer formed between the inner surface of the babinet and the outer surface for disposing room
Gas spring.
Preferably, the one end of second gas tube away from air storing cavity is connected with the first air bag.
Preferably, the opening is rounded, and the diameter of the opening is slightly larger than the diameter of trash ice knife.
Preferably, the lower surface of first outline border is in latticed.
Preferably, the push rod is rod-pulling type, and the surface of the handrail is handled by frosted.
Preferably, the surface of the perching knife and trash ice knife is in the shape of a spiral.
(3) beneficial effect
The present invention provides a kind of pylon maintenance portable dam case apparatus.Possesses following beneficial effect：
(1), portable dam case apparatus is used in pylon maintenance, and the first rotation is both provided with by the both sides of the bottom of babinet
Roller, the first rotating roller is through babinet and extends to the outside of babinet, and the both ends of the first rotating roller are rotatably connected to the first movement
Roller, the both sides in the front and the back side of babinet are fixedly connected with the second rotating roller, and the two of the second rotating roller by fixed block
End is rotatably connected to the second shifting roller, and the inner cavity of babinet is provided with placement room, and the top slide of the outer surface of babinet is connected with
Sliding door, and the surface of sliding door close to the side of safety device is fixedly connected with handle, the outer surface of babinet and remote
The centre position at the top of the side of safety device is rotatably connected to push rod, and the one end of push rod away from babinet is fixedly connected with
Handrail, has achieveed the purpose that to be moved easily tool box, and the centre position of the bottom for the outer surface for passing through babinet is provided with trash ice
Device, carries out timely deicing to ice-patch surface, prevents staff from slipping.
(2), portable dam case apparatus is used in pylon maintenance, and peace is provided with the top of the side by the outer surface of babinet
Full protection device, safety device include the 3rd outline border, and the centre position at the top of the inner cavity of the 3rd outline border is fixedly connected with
Second cylinder, the surface at the top of the second cylinder are fixedly connected with the second telescopic rod, the second telescopic rod away from the second cylinder one
The surface at end is fixedly connected with air storing cavity, and the surface of the side of the inner cavity of the 3rd outline border is provided with air bag groove, and air bag groove is interior
Chamber is provided with the second air bag, and the centre position of the both sides of air storing cavity has been respectively communicated with the first gas tube and the second gas tube, and
The one end of one gas tube away from air storing cavity is connected with the second air bag, and one end of the first gas tube close to air storing cavity is provided with first
Charge valve, one end of the second gas tube close to air storing cavity are provided with the second charge valve, have achieveed the purpose that to improve safety in utilization,
When service personnel is climbed to pylon, air storing cavity can be advanced with the second air bag is inflated, make it in ground drawout
Come, to play safety protection function to the maintenance personal of working at height at any time.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the front view of babinet of the present invention；
Fig. 3 is the structure diagram of deicing of the present invention；
Fig. 4 is the structure diagram of safety device of the present invention；
Fig. 5 is the top view of present invention placement room.
In figure：1 babinet, 2 deicings, 21 first outline borders, 22 first cylinders, 23 first telescopic rods, 24 second outline borders, 25
Motor, 26 trash ice knives, 27 openings, 28 bases, 29 air-heaters, 3 first rotating rollers, 4 first shifting rollers, 5 fixed blocks, 6 second
Rotating roller, 7 second shifting rollers, 8 placement rooms, 81 instrument fixing grooves, 82 first air bags, 9 safety devices, outside 91 the 3rd
Frame, 92 second cylinders, 93 second telescopic rods, 94 air storing cavities, 95 air bag grooves, 96 second air bags, 97 first gas tubes, 971 first
Charge valve, 98 second gas tubes, 981 second charge valves, 10 sliding doors, 11 handles, 12 push rods, 13 handrails, 14 draw rings, 15 turns
Axis, 16 perching knives, 17 rubber air springs.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
- 5 are please referred to Fig.1, the present invention provides a kind of technical solution：Portable dam case apparatus is used in a kind of pylon maintenance, is wrapped
Babinet 1 is included, the centre position of the bottom of the outer surface of babinet 1 is provided with deicing 2, carries out deicing to ice-patch surface, prevents
Maintenance personal falls down because road is sliding, ensures its security.Deicing 2 includes the first outline border 21, the inner cavity of the first outline border 21
The centre position at top is fixedly connected with the first cylinder 22, and the bottom of the first cylinder 22 is fixedly connected with the first telescopic rod 23, the
The one end of one telescopic rod 23 away from the first cylinder 22 is fixedly connected with the second outline border 24, and the top of the inner cavity of the second outline border 24 is fixed
Motor 25 is connected with, the turning end of motor 25 is rotatably connected to trash ice knife 26, the interposition on the surface of the bottom of the first outline border 21
To put and offer opening 27, opening 27 is rounded, and the diameter of opening 27 is slightly larger than the diameter of trash ice knife 26, when ice detachment is desired,
Upheld using the first cylinder 22 so as to drive trash ice knife 26 to move down and touched by opening 27 with ground, recycle 25 turns of motor
The dynamic ice cube for driving trash ice knife 26 to rotate road pavement is rubbed, and prevents road from sliding.The both sides at the top of the inner cavity of the first outline border 21
Air-heater 29 is symmetrically arranged with by base 28, and the lower surface of the first outline border 21 is in latticed, utilizes what air-heater 29 was blown out
Hot wind heats the rubble ice on ground, promotes it to accelerate to melt.The both sides of the bottom of babinet 1 are both provided with the first rotation
Roller 3, the first rotating roller 3 is through babinet 1 and extends to the outside of babinet 1, and the both ends of the first rotating roller 3 are rotatably connected to first
Shifting roller 4, is rotated using the first shifting roller 4 so as to quickly and easily move whole device.The front of babinet 1 and the back of the body
The both sides in face are fixedly connected with the second rotating roller 6 by fixed block 5, and the both ends of the second rotating roller 6 are rotatably connected to second
Shifting roller 7, babinet 1 is may be reversed so that the second shifting roller 7 is touched with ground when row is to relatively narrow road surface, so that
Second shifting roller 7 replaces the first shifting roller 4 to move whole device, to reduce the floor space of whole device so as to suitable
Answer different road conditions.The inner cavity of babinet 1 is provided with placement room 8, disposes the surface of the bottom of room 8 to be provided with instrument fixing groove 81,
And the first air bag 82 is provided between the outer surface of instrument fixing groove 81 and the inner surface of placement room 8, it is opposite in placement room 8
Instrument carries out the effect of damping and fixation.And safety device 9 is provided with the top of the side of the outer surface of babinet 1, safety
Protective device 9 includes the 3rd outline border 91, and the centre position at the top of the inner cavity of the 3rd outline border 91 is fixedly connected with the second cylinder 92,
The surface at the top of the second cylinder 92 is fixedly connected with the second telescopic rod 93, the one end of the second telescopic rod 93 away from the second cylinder 92
Surface be fixedly connected with air storing cavity 94, the surface of the side of the inner cavity of the 3rd outline border 91 is provided with air bag groove 95, and air bag groove
95 inner cavity is provided with the second air bag 96, and the centre position of the both sides of air storing cavity 94 has been respectively communicated with the first gas tube 97 and second
Gas tube 98, and the one end of the first gas tube 97 away from air storing cavity 94 is connected with the second air bag 96, the first gas tube 97 is close
One end of air storing cavity 94 is provided with the first charge valve 971, flexible so as to be inflated to the second air bag 96 using the second cylinder 92,
It smooth can be coated with ground, so as to carry out security protection work to the maintenance personal for carrying out working at height in pylon
With to ensure its personal safety.One end of second gas tube 98 close to air storing cavity 94 is provided with the second charge valve 981, and second
The one end of gas tube 98 away from air storing cavity 94 runs through the 3rd outline border 91 and extends to outside and the first air bag 82 of the 3rd outline border 91
It is connected, first air bag 82 is inflated using air storing cavity 94.The top slide of the outer surface of babinet 1 is connected with sliding door
10, and the surface of sliding door 10 close to the side of safety device 9 is fixedly connected with handle 11, the outer surface of babinet 1 and remote
Centre position from the top of the side of safety device 9 is rotatably connected to push rod 12, and the one end of push rod 12 away from babinet 1 is consolidated
Surely handrail 13 is connected with, push rod 12 is rod-pulling type, and the surface of handrail 13 is handled by frosted.The front of babinet 1 and the back side
The centre position at top is symmetrically arranged with draw ring 14, and the bottom of the both sides of the outer surface of babinet 1 is rotatablely connected by shaft 15
There is a perching knife 16, the surface of perching knife 16 and trash ice knife 26 in the shape of a spiral, can will using perching knife 16 while mobility kit
The ice cube on road surface tilts, in order to which trash ice knife 26 quickly rubs ice cube.And the inner surface of babinet 1 is with disposing the outer of room 8
Rubber air spring 17 is filled with the interlayer formed between surface, cushioning effect can be played to the maintenance tool in placement room 8,
Be conducive to prevent tool damage, to extend its service life.
In use, sliding opening sliding door 10, the instrument fixing groove 81 being then placed in the instrument that need to be used in placement room 8
In, the second charge valve 981 is opened at the same time to be inflated to the first air bag 82 followed by the second cylinder 92 is flexible, is conducive to pair
The instrument being placed in placement room 8 carries out the effect of damping and fixation, after shut sliding door 10, both hands hold handrail 13 with using pushing away
Bar 12 promotes babinet 1 to advance forward, when row to the road surface to freeze, is upheld using the first cylinder 22 so as to drive trash ice knife 26
Move down and touched by opening 27 with ground, recycle motor 25 to rotate the ice cube for driving trash ice knife 26 to rotate road pavement and carry out
Rub, at the same using air-heater 29 blow out hot wind the rubble ice on ground is heated, promote its accelerate melt, prevent because
Road is sliding and causes maintenance personal to slip, when maintenance personal is climbed to when carrying out the service work of circuit in pylon, using the second gas
Cylinder 92 is flexible so as to be inflated to the second air bag 96 so that the second air bag 96 smooth can be coated with ground, so that in electricity
The maintenance personal that working at height is carried out on tower carries out safety protection function, to ensure its personal safety.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that
Also there are other identical element in the process, method, article or apparatus that includes the element ".
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. portable dam case apparatus, including babinet (1) are used in a kind of pylon maintenance, it is characterised in that：Outside the babinet (1)
The centre position of the bottom on surface is provided with deicing (2), and the both sides of the bottom of the babinet (1) are both provided with first turn
Dynamic roller (3), first rotating roller (3) is through babinet (1) and extends to the outside of babinet (1), first rotating roller
(3) both ends are rotatably connected to the first shifting roller (4), and the front of the babinet (1) is with the both sides at the back side by solid
Determine block (5) and be fixedly connected with the second rotating roller (6), and the both ends of second rotating roller (6) are rotatably connected to the second movement
Roller (7), the inner cavity of the babinet (1) are provided with placement room (8), and the top of the side of the outer surface of the babinet (1)
Portion is provided with safety device (9), and the top slide of the outer surface of the babinet (1) is connected with sliding door (10), and institute
The surface of sliding door (10) close to the side of safety device (9) stated is fixedly connected with handle (11), the babinet (1)
Outer surface and the centre position at top of side away from safety device (9) be rotatably connected to push rod (12), it is described
The one end of push rod (12) away from babinet (1) is fixedly connected with handrail (13), front and the top at the back side of the babinet (1)
Centre position is symmetrically arranged with draw ring (14), and the bottom of the both sides of the outer surface of the babinet (1) is turned by shaft (15)
It is dynamic to be connected with perching knife (16).
2. portable dam case apparatus is used in a kind of pylon maintenance according to claim 1, it is characterised in that：The trash ice
Device (2) includes the first outline border (21), and the centre position at the top of the inner cavity of first outline border (21) is fixedly connected with
One cylinder (22), the bottom of first cylinder (22) are fixedly connected with the first telescopic rod (23), first telescopic rod
(23) one end away from the first cylinder (22) is fixedly connected with the second outline border (24), the top of the inner cavity of second outline border (24)
Portion is fixedly connected with motor (25), and the turning end of the motor (25) is rotatably connected to trash ice knife (26), outside described first
The centre position on the surface of the bottom of frame (21) offers opening (27), and the two of the top of the inner cavity of first outline border (21)
Side is symmetrically arranged with air-heater (29) by base (28).
3. portable dam case apparatus is used in a kind of pylon maintenance according to claim 2, it is characterised in that：The safety
Protective device (9) includes the 3rd outline border (91), and the centre position at the top of the inner cavity of the 3rd outline border (91) is fixedly connected
There is the second cylinder (92), the surface at the top of second cylinder (92) is fixedly connected with the second telescopic rod (93), described
The surface of the one end of the second telescopic rod (93) away from the second cylinder (92) is fixedly connected with air storing cavity (94), the 3rd outline border
(91) surface of the side of inner cavity is provided with air bag groove (95), and the inner cavity of the air bag groove (95) is provided with the second air bag
(96), the centre position of the both sides of the air storing cavity (94) has been respectively communicated with the first gas tube (97) and the second gas tube
(98), and first gas tube (97) is connected away from one end of air storing cavity (94) with the second air bag (96), and described the
One end of one gas tube (97) close to air storing cavity (94) is provided with the first charge valve (971), and second gas tube (98) connects
One end of nearly air storing cavity (94) is provided with the second charge valve (981), and second gas tube (98) is away from air storing cavity (94)
One end through the 3rd outline border (91) and extend to the outside of the 3rd outline border (91).
4. portable dam case apparatus is used in a kind of pylon maintenance according to claim 3, it is characterised in that：The placement
The surface of the bottom of room (8) is provided with instrument fixing groove (81), and the outer surface of the instrument fixing groove (81) and placement room
(8) the first air bag (82) is provided between inner surface.
5. portable dam case apparatus is used in a kind of pylon maintenance according to claim 4, it is characterised in that：The babinet
(1) rubber air spring (17) is filled with the interlayer formed between inner surface and the outer surface for disposing room (8).
6. portable dam case apparatus is used in a kind of pylon maintenance according to claim 5, it is characterised in that：Described second
The one end of gas tube (98) away from air storing cavity (94) is connected with the first air bag (82).
7. portable dam case apparatus is used in a kind of pylon maintenance according to claim 6, it is characterised in that：The opening
(27) diameter of rounded and described opening (27) is slightly larger than the diameter of trash ice knife (26).
8. portable dam case apparatus is used in a kind of pylon maintenance according to claim 7, it is characterised in that：Described first
The lower surface of outline border (21) is in latticed.
9. portable dam case apparatus is used in a kind of pylon maintenance according to claim 8, it is characterised in that：The push rod
(12) it is rod-pulling type, and the surface of the handrail (13) is handled by frosted.
10. portable dam case apparatus is used in a kind of pylon maintenance according to claim 9, it is characterised in that：The shovel
The surface of knife (16) and trash ice knife (26) is in the shape of a spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710964594.1A CN107984446B (en) | 2017-10-17 | 2017-10-17 | A kind of pylon maintenance portable dam case apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710964594.1A CN107984446B (en) | 2017-10-17 | 2017-10-17 | A kind of pylon maintenance portable dam case apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107984446A true CN107984446A (en) | 2018-05-04 |
| CN107984446B CN107984446B (en) | 2019-09-24 |
Family
ID=62029668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710964594.1A Expired - Fee Related CN107984446B (en) | 2017-10-17 | 2017-10-17 | A kind of pylon maintenance portable dam case apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107984446B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1321247A2 (en) * | 2001-12-21 | 2003-06-25 | Guido Valentini | Portable container for an electric tool with dust suction and collection capacity |
| CN103088782A (en) * | 2013-02-20 | 2013-05-08 | 陈科 | Deicing device arranged in vehicle |
| CN205148282U (en) * | 2015-11-03 | 2016-04-13 | 山西博浩网络科技有限公司 | Multi -function tool box |
| CN206211362U (en) * | 2016-12-05 | 2017-05-31 | 国网山东省电力公司阳谷县供电公司 | A kind of power engineering workbench |
-
2017
- 2017-10-17 CN CN201710964594.1A patent/CN107984446B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1321247A2 (en) * | 2001-12-21 | 2003-06-25 | Guido Valentini | Portable container for an electric tool with dust suction and collection capacity |
| CN103088782A (en) * | 2013-02-20 | 2013-05-08 | 陈科 | Deicing device arranged in vehicle |
| CN205148282U (en) * | 2015-11-03 | 2016-04-13 | 山西博浩网络科技有限公司 | Multi -function tool box |
| CN206211362U (en) * | 2016-12-05 | 2017-05-31 | 国网山东省电力公司阳谷县供电公司 | A kind of power engineering workbench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107984446B (en) | 2019-09-24 |
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Granted publication date: 20190924 Termination date: 20211017 |
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