CN217135137U - Lightning protection device for operation and maintenance management of 10kV distribution line - Google Patents
Lightning protection device for operation and maintenance management of 10kV distribution line Download PDFInfo
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- CN217135137U CN217135137U CN202220883364.9U CN202220883364U CN217135137U CN 217135137 U CN217135137 U CN 217135137U CN 202220883364 U CN202220883364 U CN 202220883364U CN 217135137 U CN217135137 U CN 217135137U
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- safety cover
- lightning protection
- protection device
- distribution line
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- 238000012423 maintenance Methods 0.000 title claims description 13
- 230000001681 protective effect Effects 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 10
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 238000012546 transfer Methods 0.000 abstract description 8
- 230000005012 migration Effects 0.000 abstract description 5
- 238000013508 migration Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a lightning protection device is used in management of 10kV distribution lines fortune dimension, including arrester body and connecting plate, the bottom of arrester body is equipped with the connector, one side of connector runs through the connecting plate, the safety cover has been cup jointed in the outside of connector. The utility model adopts the above structure, embolia the safety cover, the staff rotates the transfer piece, the transfer piece makes the screw rod rotate, the screw rod makes the connecting seat rotate after rotating, and the connecting seat horizontal migration under the cooperation of guide block and guide slot, insert in the slot of connector after the connecting seat removes the maximum stroke, thereby make safety cover and connector stable connection, prevent that the safety cover from droing, and then reach the effect of protecting connector and nut through the safety cover, it is inconvenient to avoid follow-up lock nut to dismantle the difficulty, and compress tightly lock nut through compression spring, prevent that lock nut is not hard up to drop, thereby reduce the potential safety hazard, make distribution lines accessible arrester body stably carry out lightning protection work.
Description
Technical Field
The utility model belongs to the technical field of the distribution lines lightning protection, in particular to 10kV distribution lines lightning protection device for fortune dimension management.
Background
The distribution line is a line which transmits power from a step-down transformer substation to a distribution transformer or transmits the power of the distribution transformer substation to a power utilization unit, along with the development of a Chinese power system, high-voltage overhead lines are increasingly laid, power failure accidents caused by lightning strike power transmission lines are increasingly increased, the accident occurrence rate caused by the lightning strike power transmission lines is higher, and the economic loss caused by the lightning strike power transmission lines is very large, so that a lightning protection device can be installed on a telegraph pole of the overhead power transmission lines in the design of the overhead power transmission lines.
The existing lightning arrester base for operation and maintenance management of the distribution line is installed on a support and then locked by a nut, but the nut is exposed outside and is very easy to corrode under wind, wind and rain, so that the lightning arrester is inconvenient to disassemble subsequently, the nut is easy to loosen and possibly falls off the lightning arrester base, the lightning arrester falls off from the support, potential safety hazards exist, and lightning protection work is influenced; the insulator umbrella skirt of the arrester utilizes the sensitivity of birds to red and the reflection efficiency of the device under the irradiation of sunlight, and can play a role in frightening birds, however, because the structure is simpler, the umbrella skirt is easy to deform greatly, the service life is shortened, and the effect of preventing bird damage by the umbrella skirt is influenced.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems mentioned in the background technology, the utility model aims at providing a lightning protection device for 10kV distribution line operation and maintenance management, which solves the problems that the nut is exposed outside and is very easy to corrode under wind and rain, so that the lightning arrester is inconvenient to disassemble in the follow-up process, the nut is easy to loosen and possibly fall off the base of the lightning arrester, the lightning arrester falls off from the bracket, and the lightning arrester has potential safety hazard and affects the lightning protection work; the insulator umbrella skirt of the arrester utilizes the sensitivity of birds to red and the reflection efficiency of the device under the irradiation of sunlight, and can play a role in frightening birds, however, because the structure is simpler, the umbrella skirt is easy to deform greatly, the service life is shortened, and the problem of bird damage prevention effect of the umbrella skirt is influenced.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a lightning protection device is used in 10kV distribution lines fortune dimension management, includes arrester body and connecting plate, the bottom of arrester body is equipped with the connector, one side of connector runs through the connecting plate, the safety cover has been cup jointed in the outside of connector, one side of connector is equipped with the external screw thread, there is lock nut one side of connector through external screw thread threaded connection, the safety cover covers locking thread, one side of safety cover is equipped with positioning mechanism, one side of arrester body is equipped with the full skirt, the full skirt is equipped with the multiunit, one side of full skirt is equipped with the reinforcement subassembly.
Through adopting the above-mentioned technical scheme, the connector of arrester body downside passes the connecting plate and passes through lock nut constriction back, embolia the safety cover, the staff rotates the transfer block, the transfer block makes the screw rod rotate, make the connecting seat rotate after the screw rod rotates, and the connecting seat is horizontal migration under the cooperation of guide block and guide slot, the connecting seat inserts in the slot of connector after moving maximum stroke, thereby make safety cover and connector stable connection, prevent that the safety cover from droing, and then reach and carry out the effect of protecting to connector and nut through the safety cover, it is inconvenient to avoid follow-up lock nut to dismantle the difficulty, and compress tightly lock nut through compression spring, prevent that lock nut is not hard up to drop, thereby reduce the potential safety hazard, make distribution lines accessible arrester body stably carry out lightning protection work.
Further, as preferred technical scheme, the gasket has been cup jointed to one side of connector, the downside laminating of one side of gasket and connecting plate is connected through lock nut.
Through adopting above-mentioned technical scheme, through installation gasket between connector and connecting plate, can reduce pressure, prevent that lock nut is not hard up, stabilize lock nut's position, improve the stability of structure.
Further, as preferred technical scheme, the upside of safety cover is equipped with the sealing washer, the upside of sealing washer is connected with the downside laminating of connecting plate.
Through adopting above-mentioned technical scheme, through setting up the sealing washer, can prevent that rainwater or dust from entering into the inside of safety cover.
Further, as preferred technical scheme, positioning mechanism includes pressure spring, coupling assembling, pressure spring establishes in the inside one side of safety cover, pressure spring's one end is connected with lock nut's bottom side laminating, coupling assembling establishes the downside at the safety cover.
Through adopting above-mentioned technical scheme, through setting up positioning mechanism, compress tightly lock nut through pressure spring, prevent that lock nut is not hard up to drop to reduce the potential safety hazard, and coupling assembling makes the safety cover can be stable cover the connector fixedly, prevents that safety cover and connector from droing, guarantees the guard action of safety cover to connector and lock nut.
Further, as preferred technical scheme, coupling assembling includes the screw rod, one side of screw rod is passed through the bearing and is rotated the inside of connecting at the safety cover, the guide slot has been seted up to the downside inside of safety cover, the inside sliding connection of guide slot has the guide block, the one end fixedly connected with connecting seat of guide block, the thread groove has been seted up to the inside of connecting seat, the connecting seat is through groove and screw rod threaded connection that fall.
Through adopting the above technical scheme, through setting up coupling assembling, when needing to be fixed safety cover and connector, the staff rotates and transfers the piece, it makes the screw rod rotate to transfer the piece, make the connecting seat rotate after the screw rod rotates, and the connecting seat horizontal migration under the cooperation of guide block and guide slot, the connecting seat removes and inserts in the slot of connector behind the maximum stroke, thereby make safety cover and connector stable connection, prevent that the safety cover from droing, dismantle the syntropy, because the screw rod is established in the safety cover, can avoid appearing rusty condition, so this simple structure, safety and reliability, it is comparatively convenient to use.
Furthermore, as the preferred technical scheme, the slot has been seted up to the downside of connector, one side of connecting seat is pegged graft in the inside of slot, the inside of slot is equipped with the sheet rubber.
Through adopting above-mentioned technical scheme, the connecting seat inserts in the slot and contacts with the interior sheet rubber of slot, utilizes the characteristic of rubber to stabilize the inserted position of connecting seat.
Further, as a preferred technical scheme, adjusting blocks are arranged on two sides of the protective cover, and one side of each adjusting block is fixedly connected with one side of the corresponding screw.
Through adopting above-mentioned technical scheme, through setting up circular accent piece, make things convenient for the staff to operate and use, transfer the piece and also be equipped with the sealing washer with the safety cover junction, play waterproof dirt-proof effect of sealed.
Further, as a preferred technical scheme, the section of the protective cover is designed to be I-shaped.
Through adopting above-mentioned technical scheme, through setting up I shape safety cover, the staff of being convenient for grips.
Furthermore, as a preferred technical scheme, the reinforcing component comprises positioning blocks, the positioning blocks are fixedly connected to the outer side of the umbrella skirt, supporting rods are fixedly connected between one group of the positioning blocks and the other group of the positioning blocks, and the number of the supporting rods is four on the outer side of the umbrella skirt.
Through adopting above-mentioned technical scheme, through setting up the reinforcement assembly, be equipped with bracing piece and locating piece between each full skirt, can support the full skirt limit, strengthen the intensity of full skirt structure, avoid using long back full skirt to appear warping the great condition to the life of extension full skirt.
To sum up, the utility model discloses mainly have following beneficial effect:
firstly, the umbrella skirts are supported by the support rods and the positioning blocks arranged between the umbrella skirts, so that the strength of the umbrella skirt structure is enhanced, and the condition that the umbrella skirts deform greatly after being used for a long time is avoided, the service life of the umbrella skirts is prolonged, the umbrella skirts can normally perform bird repelling work, the use effect is improved, and the normal operation of a power transmission line is ensured;
second, the connector of arrester body downside passes the connecting plate and passes through lock nut tightening back, embolia the safety cover, the staff rotates the adjusting block, the adjusting block makes the screw rod rotate, make the connecting seat rotate after the screw rod rotates, and the connecting seat is horizontal migration under the cooperation of guide block and guide slot, the connecting seat inserts in the slot of connector after removing the maximum stroke, thereby make safety cover and connector stable connection, prevent that the safety cover from droing, and then reach the effect of protecting connector and nut through the safety cover, it is inconvenient to avoid follow-up lock nut to dismantle the difficulty, and compress tightly lock nut through compression spring, prevent that lock nut is not hard up to drop, thereby reduce the potential safety hazard, make distribution lines accessible arrester body stably carry out lightning protection work.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a schematic structural diagram of the present invention;
FIG. 3 is a schematic view of the connection structure of the protective cover and the connector of the present invention;
fig. 4 is an enlarged view of a portion a of fig. 3 according to the present invention.
Reference numerals: 1. the lightning arrester comprises a lightning arrester body, 2, a shed, 3, a reinforcing component, 31, a supporting rod, 32, a positioning block, 4, a connecting plate, 5, a connector, 6, a protective cover, 7, a positioning mechanism, 71, a compression spring, 72, a connecting component, 721, a screw rod, 722, a connecting seat, 723, a spiral groove, 724, a guide block, 725, a guide groove, 726, a slot, 727, an adjusting block, 8, an external thread, 9, a gasket, 10, a sealing ring, 11 and a locking nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-4, the lightning protection device for operation and maintenance management of a 10kV distribution line described in this embodiment includes a lightning arrester body 1 and a connecting plate 4, a connector 5 is disposed at the bottom end of the lightning arrester body 1, one side of the connector 5 penetrates through the connecting plate 4, a protective cover 6 is sleeved on the outer side of the connector 5, an external thread 8 is disposed on one side of the connector 5, one side of the connector 5 is in threaded connection with a lock nut 11 through the external thread 8, the lock nut is covered by the protective cover 6, a positioning mechanism 7 is disposed on one side of the protective cover 6, an umbrella skirt 2 is disposed on one side of the lightning arrester body 1, the umbrella skirt 2 is provided with multiple sets, a reinforcing component 3 is disposed on one side of the umbrella skirt 2, and a wire and the like are further disposed on one side of the lightning arrester body 1; connector 5 of arrester body 1 downside passes connecting plate 4 and passes through lock nut 11 crimple back, embolia safety cover 6, the staff rotates accent piece 727, accent piece 727 makes screw rod 721 rotate, make connecting seat 722 rotate after screw rod 721 rotates, and connecting seat 722 horizontal migration under the cooperation of guide block 724 and guide slot 725, connecting seat 722 removes and inserts in the slot 726 of connector 5 behind the maximum stroke, thereby make safety cover 6 and connector 5 stable connection, prevent that safety cover 6 from droing, and then reach the effect of protecting connector 5 and nut through safety cover 6, it is inconvenient to avoid follow-up lock nut 11 to dismantle the difficulty, and compress tightly lock nut 11 through pressure spring 71, prevent that lock nut 11 is not hard up and drops, thereby reduce the potential safety hazard, make distribution lines accessible arrester body 1 stably carry out lightning protection work.
Example 2
Referring to fig. 1-2, on the basis of embodiment 1, in order to achieve the purpose of supporting the umbrella skirt 2 to reduce the degree of deformation, the present embodiment has an innovative design on the reinforcing component 3, specifically, the reinforcing component 3 includes positioning blocks 32, the positioning blocks 32 are fixedly connected to the outer side of the umbrella skirt 2, support rods 31 are fixedly connected between one set of positioning blocks 32 and the other set of positioning blocks 32, and the number of the support rods 31 is four on the outer side of the umbrella skirt 2; through setting up reinforcement assembly 3, be equipped with bracing piece 31 and locating piece 32 between each full skirt 2, can support full skirt 2 limits, strengthen the intensity of full skirt 2 structure, avoid using long back full skirt 2 the great condition of deformation appears to the life of extension full skirt 2.
Example 3
Referring to fig. 2 to 3, in this embodiment, on the basis of embodiment 1, in order to achieve the purpose of fixing the protection cover 6 so as to protect the connection head 5 and the lock nut 11 through the protection cover 6, the present embodiment innovatively designs the positioning mechanism 7, specifically, the positioning mechanism 7 includes a compression spring 71 and a connection assembly 72, the compression spring 71 is disposed on one side inside the protection cover 6, one end of the compression spring 71 is attached to the bottom side of the lock nut 11, the connection assembly 72 is disposed on the lower side of the protection cover 6, the connection assembly 72 includes a screw 721, one side of the screw 721 is rotatably connected inside the protection cover 6 through a bearing, a guide slot 725 is disposed inside the lower side of the protection cover 6, a guide block 724 is slidably connected inside the guide slot 725, one end of the guide block 724 is fixedly connected to a connection seat 722, a spiral groove 723 is disposed inside the connection seat 722, the connection seat 722 is in threaded connection with the screw 721 through a drop groove, a slot 726 is arranged at the lower side of the connector 5, one side of the connecting seat 722 is inserted into the slot 726, a rubber sheet is arranged in the slot 726, adjusting blocks 727 are arranged at two sides of the protective cover 6, and one side of each adjusting block 727 is fixedly connected with one side of the screw 721; by arranging the positioning mechanism 7, the locking nut 11 is pressed by the pressing spring 71, the locking nut 11 is prevented from loosening and falling off, so that potential safety hazards are reduced, the connecting assembly 72 enables the protective cover 6 to stably cover and fix the connector 5, the protective cover 6 is prevented from falling off from the connector 5, the protective effect of the protective cover 6 on the connector 5 and the locking nut 11 is ensured, by arranging the connecting assembly 72, when the protective cover 6 and the connector 5 need to be fixed, a worker rotates the adjusting block 727, the adjusting block 727 enables the screw 721 to rotate, the screw 721 rotates to enable the connecting seat 722 to rotate, the connecting seat 722 horizontally moves under the matching of the guide block 724 and the guide groove 725, the connecting seat 722 is inserted into the slot 726 of the connector 5 after moving to the maximum stroke, so that the protective cover 6 is stably connected with the connector 5, the protective cover 6 is prevented from falling off, the dismounting is the same as, because the screw is arranged in the protective cover 6, can avoid appearing rusty condition, so this simple structure, safe and reliable, it is comparatively convenient to use, and the connecting seat 722 inserts in the slot 726 and contacts with the sheet rubber in the slot 726, utilizes the stable inserted position of connecting seat 722 of characteristic of rubber, through setting up circular accent piece 727, makes things convenient for the staff to operate and use, transfers piece 727 and safety cover 6 junction also to be equipped with sealing washer 10, plays sealed waterproof dirt-proof effect.
Referring to fig. 3, in order to achieve the purpose of sealing and facilitating the use of the joint between the protection cover 6 and the connecting plate 4, the section of the protection cover 6 is i-shaped, the upper side of the protection cover 6 is provided with a sealing ring 10, and the upper side of the sealing ring 10 is attached to the lower side of the connecting plate 4; through setting up I shape safety cover 6, the staff of being convenient for grips, through setting up sealing washer 10, can prevent that rainwater or dust from entering into the inside of safety cover 6.
Referring to fig. 3, in order to achieve the purpose of stabilizing the lock nut 11, a gasket 9 is sleeved on one side of the connector 5 in the embodiment, one side of the gasket 9 is attached to the lower side of the connecting plate 4 through the lock nut 11, and the gasket 9 is installed between the connector 5 and the connecting plate 4, so that the pressure can be reduced, the lock nut 11 is prevented from loosening, the position of the lock nut 11 is stabilized, and the stability of the structure is improved.
The use principle and the advantages are as follows: when the lightning arrester is used, the connector 5 on the lower side of the lightning arrester body 1 penetrates through the connecting plate 4 and then is sleeved with the gasket 9 to facilitate the use of the locking nut 11, when the locking nut 11 is tightened, the protective cover 6 is sleeved, a worker rotates the adjusting block 727, the adjusting block 727 rotates the screw 721, the screw 721 rotates the connecting seat 722, the connecting seat 722 moves horizontally under the matching of the guide block 724 and the guide groove 725, the connecting seat 722 moves to the maximum stroke and then is inserted into the slot 726 of the connector 5, so that the protective cover 6 is stably connected with the connector 5, the protective cover 6 is prevented from falling off, the effect of protecting the connector 5 and the nut through the protective cover 6 is further achieved, the inconvenience of disassembling the subsequent locking nut 11 is avoided, the locking nut 11 is pressed through the compression spring 71, the locking nut 11 is prevented from loosening and falling off, the potential safety hazard is reduced, and the lightning protection of a distribution line can be stably carried out through the lightning arrester body 1, support full skirt 2 through being equipped with bracing piece 31 and locating piece 32 between full skirt 2, strengthen the intensity of full skirt 2 structure, avoid using long back full skirt 2 the great condition of deformation appears to the life of extension full skirt 2, make full skirt 2 can normally drive bird work, improve the result of use, ensure transmission line's normal operating.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a lightning protection device is used in management of 10kV distribution lines fortune dimension which characterized in that: including arrester body (1) and connecting plate (4), the bottom of arrester body (1) is equipped with connector (5), one side through connection board (4) of connector (5), safety cover (6) have been cup jointed in the outside of connector (5), one side of connector (5) is equipped with external screw thread (8), there are lock nut (11) one side of connector (5) through external screw thread (8) threaded connection, safety cover (6) cover lock thread, one side of safety cover (6) is equipped with positioning mechanism (7), one side of arrester body (1) is equipped with full skirt (2), full skirt (2) are equipped with the multiunit, one side of full skirt (2) is equipped with reinforcement assembly (3).
2. The lightning protection device for 10kV distribution line operation and maintenance management according to claim 1, characterized in that: one side of the connector (5) is sleeved with a gasket (9), and one side of the gasket (9) is connected with the lower side of the connecting plate (4) in a fitting mode through a locking nut (11).
3. The lightning protection device for 10kV distribution line operation and maintenance management according to claim 1, characterized in that: the upside of safety cover (6) is equipped with sealing washer (10), the upside of sealing washer (10) is connected with the downside laminating of connecting plate (4).
4. The lightning protection device for 10kV distribution line operation and maintenance management according to claim 1, characterized in that: positioning mechanism (7) are including housing spring (71), coupling assembling (72), establish inside one side at safety cover (6) in housing spring (71), the bottom side laminating of one end and lock nut (11) of housing spring (71) is connected, the downside at safety cover (6) is established in coupling assembling (72).
5. The lightning protection device for 10kV distribution line operation and maintenance management according to claim 4, wherein: coupling assembling (72) include screw rod (721), one side of screw rod (721) is passed through the bearing and is rotated the inside of connecting in safety cover (6), guide slot (725) have been seted up to the downside inside of safety cover (6), the inside sliding connection of guide slot (725) has guide block (724), the one end fixedly connected with connecting seat (722) of guide block (724), spiral shell groove (723) have been seted up to the inside of connecting seat (722), connecting seat (722) are through falling groove and screw rod (721) threaded connection.
6. The lightning protection device for 10kV distribution line operation and maintenance management according to claim 5, wherein: a slot (726) is formed in the lower side of the connector (5), one side of the connecting seat (722) is inserted into the slot (726), and a rubber sheet is arranged inside the slot (726).
7. The lightning protection device for 10kV distribution line operation and maintenance management according to claim 5, wherein: adjusting blocks (727) are arranged on two sides of the protective cover (6), and one side of each adjusting block (727) is fixedly connected with one side of the screw (721).
8. The lightning protection device for 10kV distribution line operation and maintenance management according to claim 1, characterized in that: the section of the protective cover (6) is designed to be I-shaped.
9. The lightning protection device for 10kV distribution line operation and maintenance management according to claim 1, characterized in that: the reinforced component (3) comprises positioning blocks (32), the positioning blocks (32) are fixedly connected to the outer side of the umbrella skirt (2), one group of the positioning blocks (32) is connected with the other group of the supporting rods (31) fixedly connected between the positioning blocks (32), and the number of the supporting rods (31) is four on the outer side of the umbrella skirt (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220883364.9U CN217135137U (en) | 2022-04-15 | 2022-04-15 | Lightning protection device for operation and maintenance management of 10kV distribution line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220883364.9U CN217135137U (en) | 2022-04-15 | 2022-04-15 | Lightning protection device for operation and maintenance management of 10kV distribution line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217135137U true CN217135137U (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220883364.9U Expired - Fee Related CN217135137U (en) | 2022-04-15 | 2022-04-15 | Lightning protection device for operation and maintenance management of 10kV distribution line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217135137U (en) |
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2022
- 2022-04-15 CN CN202220883364.9U patent/CN217135137U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |