CN106760867B - A kind of electric pole - Google Patents
A kind of electric pole Download PDFInfo
- Publication number
- CN106760867B CN106760867B CN201611078507.4A CN201611078507A CN106760867B CN 106760867 B CN106760867 B CN 106760867B CN 201611078507 A CN201611078507 A CN 201611078507A CN 106760867 B CN106760867 B CN 106760867B
- Authority
- CN
- China
- Prior art keywords
- electric pole
- inner cylinder
- club shaft
- cylinder
- rolling element
- 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.)
- Expired - Fee Related
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
- E01F15/141—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands for column or post protection
Abstract
The present invention discloses a kind of electric pole, is related to field of electrical equipment.It includes outer cylinder, rolling element, inner cylinder, electric wire club shaft.Electric wire club shaft is axially through inner cylinder.Outer sleeve is set to set inner cylinder outer peripheral surface.Rolling element is rotatablely arranged between outer cylinder and inner cylinder, the inner circumferential face contact of rolling element and outer cylinder.Outer cylinder relative to inner cylinder for rotating under external force.It can reduce electric pole by damage, vehicle caused by external force collision people and the injury that is subject to by Vehicular impact electric pole of vehicle, can also reduce the secondary injury generated by Vehicular impact electric pole.
Description
Technical field
The present invention relates to field of electrical equipment, in particular to a kind of electric pole.
Background technique
Electric pole is the electric power facility on basis, and in power equipment erection process, electric pole is essential, is used to support and leads
Line, insulator, fitting etc., since many electric poles are all embedded in two sides, electric pole is often unexpectedly damaged by external force,
Such as: vehicle is frequently seen because out of control knock electric pole at the scene of traffic accident, not only electric pole is made to be damaged in this way, and
People and vehicle to driving can cause huge damage, even deprive the life of passengers inside the car.
Summary of the invention
The purpose of the present invention is to provide a kind of electric poles, can reduce electric pole by damage caused by external force collision
The injury that people bad, in vehicle and vehicle are subject to by Vehicular impact electric pole can also be reduced because of the generation of Vehicular impact electric pole
Secondary injury.
The embodiment of the present invention is achieved in that a kind of electric pole comprising outer cylinder, rolling element, inner cylinder, electric pole bar
Body.Electric wire club shaft is axially through inner cylinder.Outer sleeve is set to set inner cylinder outer peripheral surface.Rolling element is rotatablely arranged at outer cylinder
Between inner cylinder, the inner circumferential face contact of rolling element and outer cylinder.Outer cylinder relative to inner cylinder for rotating under external force；Electric pole
There are gap between the body of rod and inner cylinder, electric wire club shaft passes through the elastic component being arranged in gap with inner cylinder and connect；Electric pole is also
Including bumper post and elastic joint part；Buffer cavity corresponding with inner cylinder, electric wire club shaft wall surface are offered in electric wire club shaft
Offer multiple connection through-holes being connected to buffer cavity；Bumper post is placed in buffer cavity, and one end of multiple elastic joint parts is passed through
It wears connection through-hole to be connected with bumper post, the other end of multiple elastic joint parts is connected with the inner wall of inner cylinder.
Inventor's discovery: in general, when vehicle hits the electric pole for being set to street both sides for some reason,
Vehicle body is contacted with electric pole, and impact force acts on electric wire club shaft completely, and reaction force also acts on vehicle completely, so that electric
It is artificial at huge injury in line bar, vehicle and vehicle, and if subsequent vehicle, do not brake, also may cause in time
Secondary injury.For this purpose, inventor devises above-mentioned electric pole, electric wire club shaft is from inside to outside successively by inner cylinder and outer cylinder
It is arranged, can be rotatably set between outer cylinder and inner cylinder with the rolling element of the inner circumferential face contact of outer cylinder.When vehicle is due to certain originals
Cause, when colliding electric pole, shock portion contacts outer cylinder, outer cylinder stress, until rotating outer cylinder relative to inner cylinder, vehicle is to electric wire
Bar hits the power a part generated and acts on outer cylinder, and a part is converted into the kinetic energy of outer cylinder rotation.Vehicle turns due to outer cylinder
It is dynamic, until changing the direction of Vehicular impact, to continue to move forward.And the reaction force that vehicle is subject to is again smaller than general case
Under, the reaction force that general electric pole applies vehicle, the personnel in vehicle that avoid are reduced the injures and deaths of personnel by huge external force.
And vehicle, to continue to move forward, also avoids secondary injury caused by subsequent vehicle knocks into the back due to the rotation of outer cylinder.
In an embodiment of the present invention, the inner wall of outer cylinder offers first annular groove, with first annular groove
The outer wall of opposite inner cylinder offers second annular groove.First annular groove and second annular groove, which fasten, to be constituted described in receiving
The rotation space of rolling element.
In an embodiment of the present invention, rolling element includes multiple cylindrical bodies, and multiple cylindrical bodies are set to rotation space
It is interior.
In an embodiment of the present invention, rolling element further includes tubular retainer, and retainer is sheathed on outside inner cylinder
Circumferential surface.Retainer peripheral wall offers multiple turning grooves corresponding with cylindrical body, and multiple cylindrical bodies are embedded in turning groove and can phase
Axis rotation for cylindrical body.
In an embodiment of the present invention, the inner wall of bumper post and the buffer cavity is connected by multiple buffering connectors
It connects.
In an embodiment of the present invention, electric wire club shaft has first be located at below bumper post in buffer cavity
Inner face.First inner face is provided with the first conductive layer and the second conductive layer.Exist between first conductive layer and the second conductive layer
Gap.Bumper post is provided with the cloche filled with conducting liquid close to one end of the first inner face.Electric pole further includes power supply
And attention device.First conductive layer, power supply, attention device and the second conductive layer are sequentially connected electrically.
In an embodiment of the present invention, electric pole further includes rigid puncture portion, the one end in rigid puncture portion and elasticity
Interconnecting piece connection, the other end in rigid puncture portion are connected with the surface of cloche.
In an embodiment of the present invention, attention device includes warning lamp and/or alarm signal transmitter.
The embodiment of the present invention at least have it is following the utility model has the advantages that
A kind of electric pole provided in an embodiment of the present invention, can reduce electric pole receive damage suffered by external force collision,
The injury that people and vehicle in vehicle are subject to by Vehicular impact electric pole, can also reduce because Vehicular impact electric pole generate it is secondary
Injury.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of electric pole in the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of rolling element in the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of outer cylinder in the embodiment of the present invention 1；
Fig. 4 is the structural schematic diagram of inner cylinder in the embodiment of the present invention 1；
Fig. 5 is the structural schematic diagram of electric wire club shaft in the embodiment of the present invention 1；
Fig. 6 is the structural schematic diagram of electric wire club shaft and inner cylinder, rolling element, outer cylinder in the embodiment of the present invention 1；
Fig. 7 is enlarged drawing at the VII of Fig. 1；
Fig. 8 a is the effect diagram of electric pole in the embodiment of the present invention 1；
Fig. 8 b is the effect diagram of electric pole in the embodiment of the present invention 1；
Fig. 9 is the structural schematic diagram of electric pole in the embodiment of the present invention 2；
Figure 10 is the structural schematic diagram of retainer in the embodiment of the present invention 2；
Figure 11 is enlarged drawing at the XI of Fig. 9.
Icon: 100- electric pole；10- electric wire club shaft；11- buffer cavity；12- connection through-hole；The first inner face of 13-；
The first conductive layer of 1301-；The second conductive layer of 1302-；20- power supply；30- attention device；40- rotation space；50- cloche；51- is led
Electro-hydraulic body；110- outer cylinder；111- first annular groove；120- rolling element；121- cylindrical body；130- inner cylinder；The second annular of 131-
Groove；140- elastic component；150- bumper post；160- elastic joint part；170- buffers connector；800- vehicle；200- electric pole；
220- rigidity puncture portion；210- retainer；211- turning groove.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "lower" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, only
It is that for the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " the
Two " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, can be directly connected, can also can be the connection inside two elements indirectly connected through an intermediary.
For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment 1
Please refer to Fig. 1, the present embodiment provides a kind of electric pole 100, electric pole 100 include electric wire club shaft 10, power supply 20,
Attention device 30, outer cylinder 110, rolling element 120, inner cylinder 130, bumper post 150, elastic joint part 160.
Referring to FIG. 2, rolling element 120 includes multiple cylindrical bodies 121.
Referring to FIG. 3, outer cylinder 110 is cylindrical in shape, inner wall offers first annular groove 111 along its ring-shaped periphery, first
The height of annular groove 111 is corresponding with cylindrical body 121.
Referring to FIG. 4, inner cylinder 130 is cylindrical in shape, outer wall offers corresponding with first annular groove 111 along its ring-shaped periphery
Second annular groove 131.
Referring to FIG. 5, offer buffer cavity 11 in electric wire club shaft 10,10 wall surface of electric wire club shaft offer it is multiple with
The connection through-hole 12 that buffer cavity 11 is connected to.
Referring to FIG. 6, electric wire club shaft 10 exists between electric wire club shaft 10 and inner cylinder 130 axially through inner cylinder 130
Gap, electric wire club shaft 10 are connect with inner cylinder 130 by the elastic component 140 of setting in the gap.
Outer cylinder 110 is sheathed on the outer peripheral surface of inner cylinder 130.
First annular groove 111 and second annular groove 131 fasten the rotation space 40 for constituting and accommodating rolling element 120, more
A cylindrical body 121 is uniformly arranged in rotation space 40.
Cylindrical body 121 can rotate in rotation space 40, and outer cylinder 110 is used under external force due to cylindrical body 121
Rotation is rotated relative to inner cylinder 130.
Referring to FIG. 7, bumper post 150 is placed in buffer cavity 11, one end of multiple elastic joint parts 160 is logical through connection
Hole 12 is connected with bumper post 150, and the other end of multiple elastic joint parts 160 is connected with the inner wall of inner cylinder 130.
Bumper post 150 is connect with the inner wall of buffer cavity 11 by multiple flexible buffering connectors 170.
Electric wire club shaft 10 has the first inner face 13 being located at below bumper post 150 in buffer cavity 11, in first
End face 13 is provided with the first conductive layer 1301 and the second conductive layer 1302.
There are gaps between first conductive layer 1301 and the second conductive layer 1302.
Bumper post 150 is provided with cloche 50 close to one end of the first inner face 13, and cloche 50 is filled with conducting liquid
51。
First conductive layer 1301, power supply 20, attention device 30 and the second conductive layer 1302 are sequentially connected electrically.
Inventor's discovery: in general, when vehicle hits the electric pole for being set to street both sides for some reason,
Vehicle body is contacted with electric pole, and impact force acts on electric wire club shaft completely, and reaction force also acts on vehicle completely, so that electric
It is artificial at huge injury in line bar, vehicle and vehicle, and if subsequent vehicle, do not brake, also may cause in time
Secondary injury.
For this purpose, inventor devises above-mentioned electric pole 100, buffer cavity 11 is offered in electric wire club shaft 10, and
Multiple connection through-holes 12 being connected to buffer cavity 11 are offered in its wall surface.Bumper post 150 in buffer cavity 11 is set
It is connect by multiple flexible buffering connectors 170 with the inner wall of buffer cavity 11.Multiple elastic joint parts 160 are through company
Hole 12 is connected to be connected with the inner wall of bumper post 150 and the inner cylinder 130 for being set in electric wire club shaft 10.Outer cylinder 110 is due to cylindrical body
121 can rotate in the rotation of rotation space 40 under the action of outer cylinder 110 is by external force relative to inner cylinder 130.
Such as Fig. 8 a and Fig. 8 b, when vehicle 800 for some reason, when colliding electric pole 100, shock portion contacts outer cylinder
110, outer cylinder 110 is by external force, until rotating outer cylinder 110 relative to inner cylinder 130, vehicle 800, which hits electric pole 100, to be generated
Power a part act on outer cylinder 110, a part is converted into the kinetic energy that outer cylinder 110 is rotated relative to inner cylinder 130.It acts on outer
The power of cylinder 110 is further absorbed by elastic component 140, elastic joint part 160 and buffering connector 170.Vehicle 800 is due to outer
The rotation of cylinder 110, until the direction for hitting vehicle 800 changes, to continue to move forward and reaction force that vehicle 800 is subject to
Again smaller than under general case, the reaction force that general electric pole applies vehicle, the personnel in vehicle that avoid are subtracted by huge external force
The injures and deaths of few personnel.And vehicle 800, to continue to move forward, is also avoided subsequent vehicle and caused due to the rotation of outer cylinder 110
Secondary injury.
When vehicle 800 hits electric pole 100, so that electric pole 100 deforms, 50 stress of cloche is broken, cloche 50
In conducting liquid 51 flow down, due to gravity, flow into the gap between the first conductive layer 1301 and the second conductive layer 1302,
So that the first conductive layer 1301 is connected to the second conductive layer 1302, then the first conductive layer 1301, power supply 20, attention device 30 and second
Conductive layer 1302 constitutes complete circuit, and attention device 30 is powered at this time, and warning lamp is started to work, and has reminded the careful row of subsequent vehicle
It sails.It can reduce electric pole 100 by damage caused by external force collision, the people in vehicle 800 and vehicle 800 because of vehicle 800
The injury that electric pole 100 is subject to is hit, can also be reduced because vehicle 800 hits the secondary injury that electric pole 100 generates.
It should be understood that
Attention device 30 can be warning lamp and/or alarm signal transmitter or other devices with warning effect, than
Such as alarm speakers.When attention device 30 is alarm signal transmitter, electric pole 100 is impaired, and power center is received to be believed by warning
The signal that number transmitter issues, repairs immediately and rescues.
Outer cylinder 110, elastic component 140, bumper post 150, elastic joint part 160 and the buffering equal resilient material of connector 170
It is made.
Conducting liquid 51 can be liquid mercury, sodium chloride solution etc..
In other specific embodiments, elastic component 140 and buffering connector 170 can be cancelled.
In other specific embodiments, cylindrical body 121 could alternatively be ball bead.
Embodiment 2
Fig. 9 is please referred to, the present embodiment provides a kind of electric pole 200, structure and electric pole 100 provided by the above embodiment
Roughly the same, difference is listed in detail below:
Electric pole 200 further includes rigid puncture portion 220, and rolling element 120 further includes retainer 210.
Figure 10 is please referred to, retainer 210 is cylindrical in shape, and 210 peripheral wall of retainer offers multiple corresponding with cylindrical body 121 turns
Dynamic groove 211, it is multiple to be embedded in turning groove 211 with cylindrical body 121 and be rotated relative to the axis of cylindrical body 121.Retainer
210 are sheathed on 130 outer peripheral surface of inner cylinder and are placed in rotation space 40.
Figure 11 is please referred to, rigid puncture portion 220 is in the shape of a rod, and the one end in rigid puncture portion 220 and elastic joint part 160 connect
It connects, the other end in rigid puncture portion 220 is connected with the surface of cloche 50.
Its working principle is roughly the same with electric pole 100 provided by the above embodiment, the difference is that:
The effect of retainer 210 is so that multiple cylindrical bodies 121 are rotatably mounted in turning groove 211, so that outside
Cylinder 110 is more stable relative to the rotation of inner cylinder 130.
The effect that rigid puncture portion 220 is arranged is when vehicle 800 hits electric pole 100, so that electric pole 100 becomes
Shape, rigid puncture portion 220 can make cloche 50 broken easily.
It should be noted that cylindrical body 121 could alternatively be ball bead, turning groove in other specific embodiments
211 shape is corresponding with ball bead.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of electric pole, it is characterised in that:
The electric pole includes outer cylinder, rolling element, inner cylinder, electric wire club shaft；
The electric wire club shaft is axially through the inner cylinder；
The outer sleeve is set to set inner cylinder outer peripheral surface；
The rolling element is rotatablely arranged between the outer cylinder and the inner cylinder, the inner circumferential of the rolling element and the outer cylinder
Face contact；
The outer cylinder relative to the inner cylinder for rotating under external force；
There are gap, the electric wire club shaft and the inner cylinders by being arranged in institute between the electric wire club shaft and the inner cylinder
State the elastic component connection in gap；
The electric pole further includes bumper post and elastic joint part；
Buffer cavity corresponding with the inner cylinder is offered in the electric wire club shaft, the electric wire club shaft wall surface offers more
A connection through-hole being connected to the buffer cavity；
The bumper post is placed in the buffer cavity, one end of multiple elastic joint parts through the connection through-hole with it is described
Bumper post is connected, and the other end of multiple elastic joint parts is connected with the inner wall of the inner cylinder.
2. electric pole according to claim 1, it is characterised in that:
The inner wall of the outer cylinder offers first annular groove, in the outer wall of the inner cylinder opposite with the first annular groove
Offer second annular groove；
The first annular groove and the second annular groove fasten the rotation space for constituting and accommodating the rolling element.
3. electric pole according to claim 2, it is characterised in that:
The rolling element includes multiple cylindrical bodies, and multiple cylindrical bodies are set in the rotation space.
4. electric pole according to claim 3, it is characterised in that:
The rolling element further includes tubular retainer, and the retainer is sheathed on the inner cylinder outer peripheral surface；
The retainer peripheral wall offers multiple turning grooves corresponding with the cylindrical body, described in multiple cylindrical bodies insertions
Turning groove can simultaneously be rotated relative to the axis of the cylindrical body.
5. electric pole according to claim 4, it is characterised in that:
The bumper post is connect with the inner wall of the buffer cavity by multiple buffering connectors.
6. electric pole according to claim 4, it is characterised in that:
The electric wire club shaft has the first inner face being located at below the bumper post in the buffer cavity；
First inner face is provided with the first conductive layer and the second conductive layer；
There are gaps between first conductive layer and second conductive layer；
The bumper post is provided with the cloche filled with conducting liquid close to one end of first inner face；
The electric pole further includes power supply and attention device；
First conductive layer, power supply, attention device and the second conductive layer are sequentially connected electrically.
7. electric pole according to claim 6, it is characterised in that:
The electric pole further includes rigid puncture portion, and the one end in the rigidity puncture portion is connect with the elastic joint part, described
The other end in rigid puncture portion is connected with the surface of the cloche.
8. electric pole according to claim 6, it is characterised in that:
The attention device includes warning lamp and/or alarm signal transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078507.4A CN106760867B (en) | 2016-11-30 | 2016-11-30 | A kind of electric pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078507.4A CN106760867B (en) | 2016-11-30 | 2016-11-30 | A kind of electric pole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106760867A CN106760867A (en) | 2017-05-31 |
| CN106760867B true CN106760867B (en) | 2019-01-22 |
Family
ID=58898822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611078507.4A Expired - Fee Related CN106760867B (en) | 2016-11-30 | 2016-11-30 | A kind of electric pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106760867B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843110A (en) * | 2017-07-27 | 2018-11-20 | 杭州富阳鸿祥技术服务有限公司 | A kind of electric power network electric pole |
| CN107355116A (en) * | 2017-07-27 | 2017-11-17 | 杭州富阳鸿祥技术服务有限公司 | A kind of electric power network electric pole for protecting electric wire |
| CN108072920A (en) * | 2017-12-06 | 2018-05-25 | 淮阴师范学院 | For the rainfall gauge and system in stand structure and water conservation research |
| CN110792313B (en) * | 2019-11-17 | 2021-05-25 | 广东众源电力设备有限公司 | Compensation type buried telegraph pole is emptyd with crashproof to road side |
| CN112610056B (en) * | 2020-12-02 | 2022-05-17 | 国网山东省电力公司建设公司 | Electric power grid telegraph pole capable of buffering impact force |
| CN113737684A (en) * | 2021-09-17 | 2021-12-03 | 深圳市乾行达科技有限公司 | Isolating column |
| CN115263064A (en) * | 2022-08-11 | 2022-11-01 | 维蒙特工业(中国)有限公司 | Impact energy-absorbing rod body |
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| CN104612451A (en) * | 2014-12-15 | 2015-05-13 | 新昌县东宇科研开发有限公司 | Telegraph pole protector |
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|---|---|---|---|---|
| KR20090013743A (en) * | 2008-12-30 | 2009-02-05 | 이정환 | A pole protector against crash |
| CN104612451A (en) * | 2014-12-15 | 2015-05-13 | 新昌县东宇科研开发有限公司 | Telegraph pole protector |
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|---|---|
| CN106760867A (en) | 2017-05-31 |
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Inventor after: Zhang Wei Inventor after: Zhang Hongtao Inventor after: Wang Liusheng Inventor after: Zhang Hongsheng Inventor before: Zhang Wei Inventor before: Wang Liusheng Inventor before: Zhang Hongsheng |
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