CN209029682U - A kind of lightning-protection system of overhead power transmission line pole tower - Google Patents
A kind of lightning-protection system of overhead power transmission line pole tower Download PDFInfo
- Publication number
- CN209029682U CN209029682U CN201822069825.5U CN201822069825U CN209029682U CN 209029682 U CN209029682 U CN 209029682U CN 201822069825 U CN201822069825 U CN 201822069825U CN 209029682 U CN209029682 U CN 209029682U
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- Prior art keywords
- mounting cup
- lightning
- sliding
- horizontal
- cup seat
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Abstract
The utility model discloses a kind of lightning-protection systems of overhead power transmission line pole tower, it is related to electric wire lightning protection field, aim to solve the problem that the problem that conductor and conductive column docking are not allowed in existing lightning-protection system, technical points include the mounting cup seat that shaft tower top is arranged in, lifting device on mounting cup seat bottom wall is set, the lightning rod on lifting device top is set, the rotating mask door on mounting cup seat top is set, the horizontal conductor that is arranged on lightning rod and the horizontal conductive column for being threaded through mounting cup seat side wall top and ground line connection, it further include being arranged on mounting cup seat along the slip base of horizontal conductor length direction sliding, the sliding assembly that slip base sliding is driven on mounting cup seat bottom wall is set, horizontal conductive column is rotatably arranged on close to the guide thread set of horizontal conductor one end and driving guide thread set turn is set on mounting cup seat inner wall Dynamic runner assembly, has reached and has been oriented to horizontal conductor, the purpose for abutting horizontal conductor sufficiently with horizontal conductive column.
Description
Technical field
The utility model relates to electric wire lightning protection fields, more specifically, it relates to which a kind of overhead power transmission line pole tower is anti-
Thunder system.
Background technique
Lightning protection, refer to by composition intercept, dredge finally release into ground integral system mode to prevent by direct lightning strike
Or the electromagnetic pulse of thunder and lightning is to building itself or the hurtful guard technology of its internal unit.
Existing Authorization Notice No. is the Chinese patent of CN207009898U, discloses a kind of lightning rod, comprising: protective cover,
Pedestal, driving device, automatic control switch, lightning-arrest needle body, supporting table and conductive column, protective cover, which has, is vertically arranged in pedestal
On, lightning-arrest needle body is fixed in supporting table vertically, and lightning rod body sidewall is equipped with conductor；Supporting table is located in the accommodating chamber, leads
Electric column is located at the protective shell of the outside of protective cover, and one end protrudes into accommodating chamber, and the other end is equipped with lead under lower conductor；It drives
Dynamic device is located at for driving supporting table to move up and down in protective cover, and supporting table is during up and down motion, when supporting table fortune
When moving to operating position, lightning rod body is located at the outside of protective cover, and the conductor being arranged on lightning-arrest needle body is connect with conductive column；When
When supporting table moves to stowed position, lightning rod body is located at the inside of protective cover, and the conductor being arranged on lightning-arrest needle body is detached from
Conductive column.
But this utility model only drives supporting table to move up and down by driving device, and then makes conductive column and conductor pair
It connects, after long-time use, driving device run-off the straight or the displacement of supporting table generation horizontal direction, it is easy to cause conductive column
With docking there are gap for conductor, conduction can not be carried out.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of overhead power transmission line pole towers
Lightning-protection system can be oriented to horizontal conductor, abut horizontal conductor sufficiently with horizontal conductive column.
To achieve the above object, the utility model provides following technical solution:
A kind of lightning-protection system of overhead power transmission line pole tower, including the mounting cup seat on shaft tower top is arranged in, setting is being pacified
The lightning rod that lifting device top is arranged in, the rotating mask on mounting cup seat top is arranged in lifting device on dress cover seat bottom wall
Door, the horizontal conductor that is arranged on lightning rod and it is threaded through mounting cup seat side wall top and the level of ground line connection is conductive
Column, the horizontal conductor and horizontal conductive column further include being arranged on mounting cup seat along horizontal conductor in same perpendicular
The slip base of length direction sliding is arranged in the sliding assembly for driving slip base to slide on mounting cup seat bottom wall, is rotatably arranged on
Guide thread set, the linkage screw thread that is arranged in horizontal conductor peripheral wall on and setting of the horizontal conductive column close to horizontal conductor one end
The runner assembly of guide thread set rotation is driven on mounting cup seat inner wall, the upper table of slip base is arranged in the lifting device
Face.
By taking above-mentioned technical proposal, lifting device moves up lightning rod, washes rotating bar cover door open, and make level
When conductor and opposite horizontal conductive column, sliding assembly pushes slip base and then drives horizontal conductor mobile to guiding thread bush and insert
Enter a part in guide thread set, thus when runner assembly drives guide thread set rotation, guide thread set and level
Linkage screw thread rotation on conductor, and then drive slip base mobile towards horizontal conductive column together, until horizontal conductor exists
It is abutted in guide thread set with horizontal conductive column, to realize that horizontal conductor is sufficiently abutted with horizontal conductive column.
The utility model is further arranged to, and the runner assembly includes the connection being arranged on guide thread set periphery wall
Drive shaft is axial parallel with guide thread set on a mounting board for movable tooth ring, the mounting plate being arranged on mounting cup seat inner wall, setting
Driving motor and driving motor driving end and the driving gear that engage of ring gear that links are set, the mounting plate and drive electric
Machine is arranged far from lightning rod and the plane of motion of horizontal conductor.
By taking above-mentioned technical proposal, driving motor drives the rotation of sliding tooth wheel, and driving gear is engaged with linkage ring gear,
And then the ring gear that links rotates, thus guide thread set rotation.
The utility model is further arranged to, and the sliding assembly includes that setting is arranged in sliding in mounting cup seat bottom wall
On along the sliding of horizontal conductor length direction drive seat, be arranged and be fixedly connected with slip base side wall in drive seat upper surface telescopic rod
Driving cylinder, mounting cup seat bottom wall be set be located at vertical loading plate of the drive seat far from slip base side and setting perpendicular
Straight loading plate and drive seat borrow power spring far from slip base one end, and the pulling force by means of power spring is greater than drive seat and slip base
The sum of frictional force between mounting cup seat bottom wall.
By taking above-mentioned technical proposal, when needing slip base to slide towards horizontal conductive column, drive cylinder with vertical
Loading plate is fulcrum force, pushes slip base to horizontal conductive column, so that horizontal conductor is inserted into the input end of guide thread set, together
When guide thread set rotation when, slip base follows horizontal conductor mobile, is stretched by means of power spring, will not influence slip base
Sliding, when needing to withdraw lightning rod, guide thread set is inverted, and then horizontal conductor retracts the input end of guide thread set, borrows power
Spring reset drives cylinder to need to retract slip base, makes horizontal conductor far from guide thread set, just will not influence lifting at this time
Device drives lightning rod decline to drive the driving end of cylinder to will receive a back during driving cylinder to retract slip base
Pulling force from vertical loading plate, frictional force the sum of of this pulling force between drive seat and slip base and mounting cup seat bottom wall, therefore
In order to enable that cylinder is driven to retract slip base, then need to apply the power towards vertical loading plate, this power to driving cylinder
By borrowing power spring to provide, therefore the pulling force of power spring is borrowed to need to be greater than rubbing between drive seat and slip base and mounting cup seat bottom wall
The sum of power is wiped, can just make to borrow power spring to generate in the case that length changes deformation occurs, driving cylinder draws slip base
It returns, makes horizontal conductor far from guide thread set.
The utility model is further arranged to, and the lifting device includes the lifting cylinder that slip base upper surface is arranged in
With the automatic control switch being arranged on slip base, the top of lifting cylinder is arranged in the lightning rod.
By taking above-mentioned technical proposal, when thundery sky comes temporarily, automatic control switch can open lifting cylinder and will take shelter from the thunder
Needle releases mounting cup seat, and at the end of thundery sky, automatic control switch can open lifting cylinder and lightning rod is withdrawn mounting cup seat.
The utility model is further arranged to, and the horizontal conductive column includes and the fixed column of ground line connection, setting
In the separate recessing groove for being grounded one end of fixed column, slides the sliding column being arranged in recessing groove and be arranged in resigning groove bottom wall
The reset spring between sliding column, moving distance of the horizontal conductor in guide thread set are greater than the length of guide thread set
Degree, the guide thread set are rotatably connected on one end that sliding column stretches out recessing groove.
By taking above-mentioned technical proposal, when horizontal conductor is not abutted with horizontal conductive column, reset spring is in
Nature, sliding between column and the slot bottom of recessing groove has moving distance, when movement of the horizontal conductor in guide thread set away from
When from the length for being greater than guide thread set, it will push sliding column and moved in recessing groove, reset spring is compressed, so that it is guaranteed that water
Flush conductor abuts together with horizontal conductive column.
The utility model is further arranged to, and one end that the sliding column stretches out recessing groove is provided with rotation annular groove, institute
It states guide thread set and one end of sliding column is provided with swivel becket block.
By taking above-mentioned technical proposal, when guide thread set rotates, swivel becket block rotates in rotation annular groove, together
When, recess is arranged in rotation annular groove, can play the role of limit to guide thread set in the axial direction of horizontal conductive column.
The utility model is further arranged to, and the inner sidewall of the guide thread set is close to the one of horizontal conductor inner sidewall
End is provided with knuckle.
It, can be to avoid guiding when that horizontal conductor enters guide thread set and upstream end by taking above-mentioned technical proposal
The sharp corner angle scratching horizontal conductor of thread bush, increases the service life of horizontal conductor.
The utility model is further arranged to, and the slip base and drive seat bottom end are provided with sliding ball.
By taking above-mentioned technical proposal, there is sliding to rub the friction type between slip base and drive seat and mounting cup seat
Wiping is converted to rolling friction, and then reduces the frictional force between slip base and drive seat and mounting cup seat, it is ensured that by means of power spring
Pulling force is greater than the sum of the frictional force between drive seat and slip base and mounting cup seat bottom wall, and slip base is retracted, made by driving cylinder
Horizontal conductor is far from guide thread set.
In conclusion the utility model has the following beneficial effects:
1, after horizontal conductor is aligned in the horizontal direction with horizontal conductive column, sliding assembly pushes horizontal the utility model
Conductor is mobile to guiding thread bush and is inserted into a part in guide thread set, when runner assembly driving guide thread set rotation
It waits, the linkage screw thread on guide thread set and horizontal conductor rotates, until horizontal conductor is in guide thread set and horizontal
Conductive column abuts, and realizes that horizontal conductor is sufficiently abutted with horizontal conductive column；
2, the utility model is arranged between vertical loading plate and drive seat borrows power spring, and slip base follows horizontal conductor to move
It is dynamic, it is stretched by means of power spring, will not influence the sliding of slip base, while when driving cylinder needs horizontal conductor pulling force being oriented to spiral shell
When the upstream end of line set, by means of power spring pulling force be greater than frictional force between drive seat and slip base and mounting cup seat bottom wall it
With, make borrow power spring deformation occurs generate length change in the case where, driving cylinder one borrow power spring be stress point, will
Slip base retracts, and makes horizontal conductor far from guide thread set；
3, the horizontal conductive column of the utility model includes fixed column, recessing groove, reset spring and sliding column, is made, level is led
The moving distance of body can be greater than the length of guide thread set, and then ensure that horizontal conductor is sufficiently abutted with horizontal conductive column.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the explosive view of the utility model.
Fig. 3 is the schematic diagram to embody horizontal conductive pillar structure in the utility model.
Fig. 4 is the enlarged drawing in Fig. 2 at A.
Appended drawing reference: 1, mounting cup seat；2, lifting device；3, lightning rod；4, rotating mask door；5, horizontal conductor；6, horizontal
Conductive column；7, slip base；8, sliding assembly；9, guide thread set；10, runner assembly；11, link ring gear；12, mounting plate；13,
Driving motor；14, gear is driven；15, drive seat；16, cylinder is driven；17, vertical loading plate；18, power spring is borrowed；19, it goes up and down
Cylinder；20, automatic control switch；21, fixed column；22, recessing groove；23, reset spring；24, annular groove is rotated；25, swivel becket block；
26, knuckle；27, sliding ball；28, link screw thread；29, column is slid.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment:
The utility model discloses a kind of lightning-protection systems of overhead power transmission line pole tower, as shown in Figure 1, Figure 2 and Figure 3, packet
It includes and the mounting cup seat 1 on shaft tower top is set, the lifting device 2 being arranged on 1 bottom wall of mounting cup seat, is arranged in lifting device 2
It the lightning rod 3 on top, the rotating mask door 4 that 1 top of mounting cup seat is set, the horizontal conductor 5 being arranged on lightning rod 3 and wears
The horizontal conductive column 6 on 1 side wall top of mounting cup seat and ground line connection, horizontal conductor 5 and horizontal conductive column 6 are located at same perpendicular
It further include that the slip base 7 slid on mounting cup seat 1 along 5 length direction of horizontal conductor is set, is arranged in mounting cup in straight plane
The sliding assembly 8 of the sliding of slip base 7 is driven on 1 bottom wall of seat, is rotatably arranged on horizontal conductive column 6 close to 5 one end of horizontal conductor
Guide thread set 9, the linkage screw thread 28 being arranged on 5 peripheral wall of horizontal conductor and setting drive on 1 inner wall of mounting cup seat and lead
The inner sidewall of the runner assembly 10 rotated to thread bush 9, guide thread set 9 is provided with close to one end of 5 inner sidewall of horizontal conductor
The upper surface of slip base 7 is arranged in knuckle 26, lifting device 2, and lifting device 2 includes that 7 upper surface of slip base is arranged in
The top of lifting cylinder 19 is arranged in lifting cylinder 19 and the automatic control switch 20 being arranged on slip base 7, lightning rod 3；Thunder
Rainy day gas arrives, and automatic control switch 20 starts lifting cylinder 19, and lightning rod 3 is pushed upwardly and washes rotating mask door 4 open in turn
It stretches out outside mounting cup seat 1, horizontal conductor 5 is aligned in the horizontal direction with horizontal conductive column 6 at this time, and starting sliding assembly 8 drives
The direction of slip base 7 to guiding thread bush 9 is mobile, and then horizontal conductor 5 is made to be inserted into the upstream end that guide thread covers 9, then
Start runner assembly 10,9 rotation of guide thread set is simultaneously threadedly coupled with linkage screw thread 28, and then horizontal conductor 5 is led towards level
Electric column 6 is mobile, until horizontal conductor 5 is abutted with horizontal conductive column 6, realizes that the electric current between lightning rod 3 and ground line transmits.
As shown in figures 1 and 3, runner assembly 10 includes the linkage ring gear 11 being arranged on guide thread 9 periphery walls of set, sets
It sets the mounting plate 12 on 1 inner wall of mounting cup seat, the drives that drive shaft is parallel with 9 axial direction of guide thread set on mounting plate 12 is set
It moves motor 13 and the driving gear 14 that driving motor 13 drives end to engage with the ring gear 11 that links is set, mounting plate 12 and driving
Motor 13 is arranged far from lightning rod 3 and the plane of motion of horizontal conductor 5；Driving motor 13 is driven, driving gear 14 rotates, and with
The ring gear 11 that links engages, and then 9 rotation of guide thread set.
As depicted in figs. 1 and 2, sliding assembly 8 includes that sliding is arranged on 1 bottom wall of mounting cup seat along 5 length of horizontal conductor
The driving cylinder that 15 upper surface telescopic rod of drive seat is fixedly connected with 7 side wall of slip base is arranged in the drive seat 15 of direction sliding
16,1 bottom wall of mounting cup seat is set and is located at vertical loading plate 17 and setting of the drive seat 15 far from 7 side of slip base vertical
Loading plate 17 borrows power spring 18 far from 7 one end of slip base with drive seat 15, is greater than 15 He of drive seat by means of the pulling force of power spring 18
The sum of frictional force between 1 bottom wall of slip base 7 and mounting cup seat, slip base 7 and 15 bottom end of drive seat are provided with sliding ball 27；It needs
When using lightning rod 3, starting driving cylinder 16 is stress point with vertical loading plate 17, pushes slip base 7 towards guide thread
Set 9 is mobile, and then horizontal conductor 5 is inserted into the upstream end of guide thread set 9, when lightning rod 3 to be withdrawn, starting driving cylinder
16, to borrow the pulling force of power spring 18 as driving 16 bearing capacity of cylinder, make that cylinder 16 is driven to pull slip base 7 far from guide thread
Set 9, upstream end of the horizontal conductor 5 far from guide thread set 9.
As shown in Figure 3 and Figure 4, horizontal conductive column 6 includes remote in fixed column 21 with the fixed column 21 of ground line connection, setting
Recessing groove 22, the sliding column 29 that is arranged in recessing groove 22 of sliding and setting from ground line one end 22 bottom wall of recessing groove with
Reset spring 23 between column 29 is slid, moving distance of the horizontal conductor 5 in guide thread set 9 is greater than the length of guide thread set 9
Degree, guide thread set 9 are rotatably connected on one end that sliding column 29 stretches out recessing groove 22, and sliding column 29 stretches out one end of recessing groove 22
It is provided with rotation annular groove 24, guide thread set 9 is provided with swivel becket block 25 close to one end of sliding column 29.
The course of work:
Enable lightning rod 3: thunderstorm weather arrives, and automatic control switch 20 starts lifting cylinder 19, and lightning rod 3 is pushed upwardly
It moves and washes open rotating mask door 4 and then stretch out outside mounting cup seat 1, horizontal conductor 5 and horizontal conductive column 6 are right in the horizontal direction at this time
Together, starting driving cylinder 16, is stress point with vertical loading plate 17, pushes slip base 7 mobile towards guide thread set 9, in turn
Horizontal conductor 5 be inserted into guide thread set 9 upstream end, drive driving motor 13, driving gear 14 rotate, and with linkage ring gear 11
Engagement, and then guide thread set 9 is rotated and is threadedly coupled with linkage screw thread 28, and then horizontal conductor 5 is moved towards horizontal conductive column 6
It is dynamic, while 5 moving distance of horizontal conductor is greater than the length of guide thread set 9, sliding column 29 is moved to the slot bottom direction of recessing groove 22
Dynamic, horizontal conductor 5 is bound to together with abutting with horizontal conductive column 6, so that thunder and lightning has lightning rod 3 to pass through horizontal conductor 5, level
Conductive column 6 pours into the earth into ground line again.
Pack up lightning rod 3: starting driving motor 13 inverts driving motor 13, and driving gear 14 inverts, and with linkage tooth
Ring 11 engages, and then guide thread set 9 is inverted and is threadedly coupled with linkage screw thread 28, and then horizontal conductor 5 is far from horizontal conductive
Column 6 is mobile, and then horizontal conductor 5 returns to the upstream end of guide thread set 9, then starting driving cylinder 16, to borrow power spring 18
Pulling force as driving cylinder 16 bearing capacity, make drive cylinder 16 pull slip base 7 far from guide thread set 9, horizontal conductor 5
Upstream end far from guide thread set 9, finally starts lifting cylinder 19, lightning rod 3 is withdrawn.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of lightning-protection system of overhead power transmission line pole tower, including the mounting cup seat (1) on shaft tower top is arranged in, setting is being pacified
Fill cover seat (1) bottom wall on lifting device (2), setting lifting device (2) top lightning rod (3), be arranged in mounting cup seat
(1) the rotating mask door (4) on top, horizontal conductor (5) on lightning rod (3) is set and is threaded through mounting cup seat (1) side wall
The horizontal conductive column (6) on top and ground line connection, the horizontal conductor (5) and horizontal conductive column (6) are in same perpendicular
It is interior, it is characterised in that: further include be arranged on mounting cup seat (1) along horizontal conductor (5) length direction sliding slip base (7),
The sliding assembly (8) of driving slip base (7) sliding is set on mounting cup seat (1) bottom wall, is rotatably arranged on horizontal conductive column (6)
Close to horizontal conductor (5) one end guide thread set (9), be arranged linkage screw thread (28) on horizontal conductor (5) peripheral wall and
The runner assembly (10) of driving guide thread set (9) rotation is set on mounting cup seat (1) inner wall, and the lifting device (2) sets
Set the upper surface in slip base (7).
2. a kind of lightning-protection system of overhead power transmission line pole tower according to claim 1, it is characterised in that: the rotating group
Part (10) includes the linkage ring gear (11) being arranged on guide thread set (9) periphery wall, is arranged on mounting cup seat (1) inner wall
Mounting plate (12), be arranged on mounting plate (12) the parallel driving motor (13) of drive shaft and guide thread set (9) axial direction and
The driving gear (14) engaged at driving motor (13) driving end with linkage ring gear (11), the mounting plate (12) and driving are set
Plane of motion setting of the motor (13) far from lightning rod (3) and horizontal conductor (5).
3. a kind of lightning-protection system of overhead power transmission line pole tower according to claim 1, it is characterised in that: the sliding group
Part (8) includes that sliding is arranged on mounting cup seat (1) bottom wall the drive seat (15) along the sliding of horizontal conductor (5) length direction, sets
It sets the driving cylinder (16) being fixedly connected with slip base (7) side wall in drive seat (15) upper surface telescopic rod, be arranged in mounting cup
Seat (1) bottom wall is located at drive seat (15) vertical loading plate (17) and setting far from slip base (7) side in vertical loading plate
(17) power spring (18) are borrowed far from slip base (7) one end with drive seat (15), the pulling force by means of power spring (18), which is greater than, to be driven
The sum of frictional force between dynamic seat (15) and slip base (7) and mounting cup seat (1) bottom wall.
4. a kind of lightning-protection system of overhead power transmission line pole tower according to claim 1, it is characterised in that: the lifting dress
Setting (2) includes setting in the lifting cylinder (19) of slip base (7) upper surface and the automatic control switch being arranged on slip base (7)
(20), top of lightning rod (3) setting in lifting cylinder (19).
5. a kind of lightning-protection system of overhead power transmission line pole tower according to claim 2, it is characterised in that: the level is led
Electric column (6) includes with the fixed column (21) of ground line connection, setting in the recessing groove of fixed column (21) far from ground line one end
(22), sliding be arranged sliding column (29) in recessing groove (22) and setting recessing groove (22) bottom wall and sliding column (29) it
Between reset spring (23), moving distance of the horizontal conductor (5) in guide thread set (9) be greater than guide thread set (9)
Length, the guide thread set (9) are rotatably connected on one end that recessing groove (22) are stretched out in sliding column (29).
6. a kind of lightning-protection system of overhead power transmission line pole tower according to claim 5, it is characterised in that: the sliding column
(29) one end for stretching out recessing groove (22) is provided with rotation annular groove (24), and the guide thread set (9) is close to sliding column (29)
One end is provided with swivel becket block (25).
7. a kind of lightning-protection system of overhead power transmission line pole tower according to claim 5, it is characterised in that: the guiding spiral shell
The inner sidewall of line set (9) is provided with knuckle (26) close to one end of horizontal conductor (5) inner sidewall.
8. a kind of lightning-protection system of overhead power transmission line pole tower according to claim 3, it is characterised in that: the slip base
(7) and drive seat (15) bottom end is provided with sliding ball (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822069825.5U CN209029682U (en) | 2018-12-08 | 2018-12-08 | A kind of lightning-protection system of overhead power transmission line pole tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822069825.5U CN209029682U (en) | 2018-12-08 | 2018-12-08 | A kind of lightning-protection system of overhead power transmission line pole tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209029682U true CN209029682U (en) | 2019-06-25 |
Family
ID=66911370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822069825.5U Expired - Fee Related CN209029682U (en) | 2018-12-08 | 2018-12-08 | A kind of lightning-protection system of overhead power transmission line pole tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209029682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635439A (en) * | 2019-10-17 | 2019-12-31 | 国家电网有限公司 | Distribution network automation lightning protection device |
-
2018
- 2018-12-08 CN CN201822069825.5U patent/CN209029682U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635439A (en) * | 2019-10-17 | 2019-12-31 | 国家电网有限公司 | Distribution network automation lightning protection device |
| CN110635439B (en) * | 2019-10-17 | 2020-12-18 | 国家电网有限公司 | Distribution network automation lightning protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190625 Termination date: 20211208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |