CN203882701U - Split lightning-proof cable - Google Patents
Split lightning-proof cable Download PDFInfo
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- CN203882701U CN203882701U CN201420299378.1U CN201420299378U CN203882701U CN 203882701 U CN203882701 U CN 203882701U CN 201420299378 U CN201420299378 U CN 201420299378U CN 203882701 U CN203882701 U CN 203882701U
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Abstract
The utility model belongs to the technical field of cables. A split lightning-proof cable is composed of electrical units, an inner sheath, an armored layer, an outer sheath, and a grounding layer. The inner sheath is arranged outside a first protective layer, a second protective layer is arranged outside the inner sheath, the grounding layer is arranged outside the second protective layer, the armored layer is arranged outside the grounding layer, and the outer sheath is arranged outside the armored layer. The first protective layer and the second protective layer are mica tapes. The split lightning-proof cable is characterized in that the first protective layer is internally provided with a position fixing element, the position fixing element is provided with a plurality of accommodating holes which are not communicated with each other, the electrical units are distributed in the accommodating holes, and each accommodating hole accommodates only one electrical unit; each accommodating hole has an opening disposed at the edge of the position fixing element, and the electrical units can be placed in or taken out of the accommodating holes from the openings; and except the positions of the openings, the edge of the position fixing element is on the same cylindrical surface. The split lightning-proof cable has the following main advantages: manufacture is simple, and the production speed is high; the resistivity of the grounding layer is lower, and the maintenance cost is lower; and the split lightning-proof cable still can transmit power normally after high load or lightning.
Description
Technical field
The utility model belongs to technical field of cables, especially relates to separate type lightning protected cable.
Background technology
To communication base station, with the consideration of cable, be mainly fire-retardant, fire-resistant, flexibility performance both at home and abroad, do not consider because of cable and introduce thunder and lightning defective communication equipment or damage cable self, cause communication network power breakdown, make communication network paralysis.Communication base station electric power system is generally low-pressure system, for the lightning protection of low electric system, except thunder and lightning is attacked directly, what have destruction most is quadratic effect, because thunder and lightning has the feature of high potential, large impact electric current, instantaneity, powerful lightning produces electrostatic field, alternating electromagnetic field and electromagnetic radiation, with lightning wave intrusion, earth potential counterattack etc., forms Lightning Electromagnetic Pulse LEMP, produces powerful Electromagnetic Field, makes the raw induced potential of metal special product around and induced current; On the one hand seriously disturb wireless, wire communication, invade on the other hand the signal input port of microelectronic device, will make microelectronic component breakdown, burn, thereby network paralysis, commercial affairs are scrapped.
World intelligence engineering association points out: thunder and lightning is high-tech natural enemy.Electronic equipment protective capacities is thin, and the energy that thunderbolt discharges reaches hundreds of megajoules, and energy difference is great disparity quite, must take measures to be protected.Thunder and lightning has finds impedance minimal path with the trend of release thundercloud charge and the neutralization of the underground charges of different polarity.When near thunderbolt when the earth or building, the potential rise of thunderbolt point, and that cable extends to is far, far-end current potential can be considered O, so near the cable current potential of lightning strike spot is also considered as O.Between thunderbolt point and cable, form so great potential difference, if this potential difference surpasses the compressive resistance between thunder point and protective coverings of cable, just can puncture outer jacket, form the arc channel of putting hardware from thunderbolt, make a large amount of lightning currents pour into cable, cause cable badly damaged.Cable line is unavoidable damage PE(polyethylene in construction) sheath, damaged by rats, external force etc. all may cause hardware in cable to expose in addition.These exposed points are easily introduced forceful electric power or thunder and lightning lotus in cable, then are incorporated in equipment, cause the infringement of equipment and cable.
The lightning protection of turnover communication base station line, cable at present: various metal tubes, cable, the lead-in of turnover communication base station should be connected with building grounding-for-lightning device at import and export; Cable incoming-outgoing wire should be connected power supply metal sheath, steel sleeve etc. at import and export with electrical equipment grounding.As: cable converts overhead wire to, should be converted into device lightning arrester.Power-supply system protection to communication base station: applying electronic lightning arrester carries out cascade protection, protects step by step from high-voltage board, low-voltage cabinet, main junction box, distribution electric box, and lightning overvoltage is dropped to the level that equipment can bear.According to historical statistics analysis of data, in broken by lightning equipment breakdown, there is the invasion of 70% above Shi Cong supply line therefore, power supply lines is implemented to the important step that multistage lightning protection is electronic equipment and whole system lightning protection.Strengthen shielding and reduce inductive effect; Carry out device mask, machine room shielding, shielding of building; Install electronic arrester additional, the amplitude of the lightning overvoltage of electronic equipment is invaded in restriction.Outside cable has sheath breaking point, and under the same terms, lightning current easily enters cable, if earthing device is bad, lightning current can not bleed off rapidly, does not just have protective effect.
Now, protection for communication electric power system is also nowhere near, only by power supply lines being implemented to multistage lightning protection measures inadequate, and often ignored the weakest a bit, be the wire rod of the most easily introducing thunder and lightning with the cable of equipment connection exactly, thunder and lightning will cause destructive destruction to communication equipment by cable; Because the cable that machine room is connected with steel tower, outside being exposed to, cable sheath is easily aging and damaged, easily thunder and lightning is introduced throughout the year; In order to prevent this from occurring, need the cable designs lightning protection layer of transferring electric power, data, the lightning current that makes to enter cable can be introduced rapidly underground, stops because cable is introduced the damage that thunder and lightning causes equipment.
Over nearly 20 years, China's information industry, with average annual 25% speed increase, is led over the development of other industries, has become the first pillar industry in industry.Expectation is in coming 10 years, and information industry will be turned over again.In communication industry product, there is the communication that security performance is higher and will have good market prospects with extraordinary lightning-proof optical cable product.Along with the 3G network communication network development, also the lightning protection measures of communication base station room will be considered, avoid catching fire because thunder and lightning causes communication base station and electric power interruption, machine room, to bring large-area communication disruption, equipment the major accident such as is burnt by thunderbolt, just need on the electric power between communication base station and steel tower, signal transmission product, consider safer product.Develop rapidly along with 3G business, the construction scale of communication base station expands gradually, and 3G communication network technology is built, and at least the whole nation needs the base station of 300,000 3G communication networks, if it is the cable of 100 meters of left and right that each base station needs length, this will be a larger market.
For the lightning protection of cable, carried out effective research and obtained good achievement both at home and abroad.The applicant has also done a large amount of research and development aspect lightning protected cable, as: utility model name is called: self-supporting lightning-proof power cable, the patent No. are: 200920150584.5; Utility model name is called: lightning-proof power cable, the patent No. are: 200920150583.0; Utility model name is called: lightning-proof optical cable, the patent No. are: 200920150582.6; Utility model name is called: have the lightning-proof power cable of reinforced layer, the patent No. to be: 200910140719.4; Utility model name is called: multigroup lightning protection optical cable, the patent No. are: 200910140717.5; Utility model name is called: self-supporting lightning-proof optical cable, the patent No. are: the patents such as 200910140715.6, have all formed product and used in operator's communication base station.But they also have the following disadvantages: (1) ground plane adopts the tiltedly mode of bag, and speed of production is slower; (2) armour has only played the effect of armouring, and (3), after standing thunderbolt, the partial earthing layer in cable blows, and sheath is melted in cable core interval insulated wire cores is combined together, makes insulated wire cores be difficult to separation; Can only make waste disposal.
Above-mentioned deficiency has strengthened the maintenance cost after cable thunderbolt.
For this reason, applicant has applied for that on July 1st, 2013 name is called: anti-lightning strike composite cable, the patent No. are: 201320382810.9 utility model patent, although it has reached the object of invention,, also exist following major defect: within electric unit is positioned at inner sheath, electric unit is when serious overload or when conductor is hit by thunder and lightning, conductor temp .-elevating situation is serious, causes insulating barrier softening, even drippage, conductor in adjacent electric unit is collided, and causes secondary disaster; Therefore, the applicant has done further improvement for these innovation and creation.
Utility model content
In order to address the above problem, the purpose of this utility model is to disclose a kind of separate type lightning protected cable, and it is realized by the following technical solutions.
Separate type lightning protected cable, includes a plurality of electric units, inner sheath, armour, oversheath, ground plane, and electric unit consists of conductor and the insulating barrier that envelopes conductor; Inner sheath extrusion molding is coated on outside the first protective layer, and inner sheath is coated with the second protective layer, and ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and oversheath extrusion molding is coated on outside armour; Armour is one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; It is characterized in that having an integrated position fixation element in the first protective layer, have a plurality of not connected accommodation holes between two in position fixation element, described electric unit is distributed in accommodation hole, and in each accommodation hole, only has an electric unit; Each accommodation hole has an opening that is positioned at position fixation element edge, and electric unit can be inserted accommodation hole or from accommodation hole and take out from opening part; Except opening part, the edge of position fixation element is on the same face of cylinder.
Separate type lightning protected cable described above, is characterized in that the central axis of described a plurality of accommodation holes is on the same face of cylinder.
Separate type lightning protected cable described above, is characterized in that described a plurality of accommodation hole is symmetrical in position fixation element.
Separate type lightning protected cable described above, the material that it is characterized in that described position fixation element is pottery or polytetrafluoroethylene.
Further, separate type lightning protected cable described above, is characterized in that the central authorities of position fixation element also have a reinforcement.
Separate type lightning protected cable described above, is characterized in that described ground plane consists of many copper bars or aluminium bar.
Separate type lightning protected cable described above, is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to cable core axis is coated on outside the second protective layer.
Separate type lightning protected cable described above, while it is characterized in that described ground plane is coated on outside the second protective layer to favour the direction of cable core axis, coated pitch is 15-30 times of the second protective layer diameter.
Separate type lightning protected cable described above, is characterized in that described smooth unit and electric unit are that parallel mode is distributed in cable core or is distributed in cable core in the stranded mode of one direction spiral.
Separate type lightning protected cable described above, it is characterized in that described the first protective layer be longitudinally or the mode of spiral be coated on outside cable core; While being longitudinally coated, the overlapping width of overlap joint is 2-4mm; During helical coated, overlap joint Duplication is 15%-30%.
Separate type lightning protected cable described above, the material that it is characterized in that described insulating barrier is polyvinyl chloride or high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Separate type lightning protected cable described above, the material that it is characterized in that described oversheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Separate type lightning protected cable described above, the material that it is characterized in that described inner sheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Separate type lightning protected cable described above, it is characterized in that described the first protective layer, the second protective layer are all synthetic mica tapes, and the thickness of mica tape is 0.1mm-2mm.
In the utility model, ground plane is metal, and the inner face of armour is non-coating layer with ground plane contact-making surface, therefore be also metal level, makes not only adjacent contact of ground plane, and armour carried out parallel connection, makes ground plane reach less resistance value, standing thunderstorm hour, the caloric value in short-term of ground plane adds little, and the probability that therefore thunderbolt is blown reduces greatly, in addition, steel dress layer has also played armouring, against pressure, anti-effect of hitting, the existence of the first protective layer, the second protective layer, isolated widely heat, in thunderbolt situation, although may produce a large amount of heats, but this heat is under the isolation of the first protective layer, the second protective layer, make the work of light unit in cable core, electric unit unaffected, in addition, thunderbolt high temperature can not enter cable core gap after inner sheath is melted, and therefore, after thunderbolt, when temperature declines, sheath still can solidify, and does not substantially affect cable performance, and it is quite convenient to safeguard, in the utility model, adopt position fixation element that electric unit has been carried out to physical isolation, and the material of position fixation element is resistant to elevated temperatures nonmetal, non-conductive high insulating material, therefore, even at electric unit traffic overload or be subject under the heavy current impact in short-term that causes of thunderbolt in use, also can not affect the normal transmission of electric power, through test, even if insulating barrier melts down completely, non-conductive and high-fire resistance due to position fixation element, still can not make the conductor contact in any two insulated wires, thereby produce the phenomenon of two-phase or multiphase short circuit, therefore still can normal transmission electric power, in the utility model, electric unit can be put into easily accommodation hole or take out from accommodation hole, and the making of position fixation element is also very simple, when position fixation element adopts polytetrafluoroethylene, opening can be done littlely, utilizes the elasticity of polytetrafluoroethylene to realize putting into and taking out of electric unit, when adopting pottery, opening can suitably be done greatly, certainly, while adopting polytetrafluoroethylene, opening also can be made larger, takes out like this and puts into more convenient, in the utility model, while having reinforcement, reinforcement should adopt nonmetallic materials, as the intertwist body of fiberglass-reinforced plastic lever or fiberglass-reinforced plastic lever or aramid yarn or aramid yarn bundle or other flexible or rigid reinforcement material, can make like this power of bearing of the present utility model greatly strengthen.
Cable of the present utility model when ground plane is parallel with cable core axis, can be produced together in oversheath extrusion process, does not need other stranded operation, and therefore, speed of production is faster, cost is lower.
Therefore, the utlity model has following main beneficial effect: making is simple, speed of production is fast, and ground plane resistivity is lower, maintenance cost is lower; Still can normal transmission electric power after high load capacity or thunderbolt.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model embodiment 1.
Fig. 2 is the cross-sectional structure schematic diagram that Fig. 1 amplifies.
Fig. 3 is the perspective view of the utility model embodiment 2.
Fig. 4 is the cross-sectional structure schematic diagram that Fig. 3 amplifies.
Fig. 5 is the perspective view of the utility model embodiment 3.
Fig. 6 is the cross-sectional structure schematic diagram that Fig. 5 amplifies.
Embodiment
embodiment 1
Ask for an interview Fig. 1 and Fig. 2, separate type lightning protected cable, includes three electric units 1, inner sheath 4, armour 7, oversheath 8, ground plane 6, and electric unit consists of conductor 11 and the insulating barrier 12 that envelopes conductor; Inner sheath extrusion molding is coated on outside the first protective layer 3, and inner sheath is coated with the second protective layer 5, and ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and oversheath extrusion molding is coated on outside armour; Armour is one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; It is characterized in that having an integrated position fixation element 2 in the first protective layer, have three not connected accommodation holes 21 between two in position fixation element, described electric unit is distributed in accommodation hole, and in each accommodation hole, only has an electric unit; Each accommodation hole has an opening that is positioned at position fixation element edge, and electric unit can be inserted accommodation hole or from accommodation hole and take out from opening part; Except opening part, the edge of position fixation element is on the same face of cylinder.
embodiment 2
Ask for an interview Fig. 3 and Fig. 4, and with reference to figure 1 and Fig. 2, separate type lightning protected cable, includes four electric units 1, inner sheath 4, armour 7, oversheath 8, ground plane 6, electric unit consists of conductor 11 and the insulating barrier 12 that envelopes conductor; Inner sheath extrusion molding is coated on outside the first protective layer 3, and inner sheath is coated with the second protective layer 5, and ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and oversheath extrusion molding is coated on outside armour; Armour is one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; It is characterized in that having an integrated position fixation element 2 in the first protective layer, have four not connected accommodation holes 21 between two in position fixation element, described electric unit is distributed in accommodation hole, and in each accommodation hole, only has an electric unit; Each accommodation hole has an opening that is positioned at position fixation element edge, and electric unit can be inserted accommodation hole or from accommodation hole and take out from opening part; Except opening part, the edge of position fixation element is on the same face of cylinder.
embodiment 3
Ask for an interview Fig. 5 and Fig. 6, and referring to figs. 1 to Fig. 4, separate type lightning protected cable, substantially with embodiment 2, difference is: the central authorities of position fixation element also have a reinforcement 9.
Certainly, separate type lightning protected cable described in above-mentioned arbitrary embodiment, it is characterized in that electric unit also can be that other are a plurality of, accommodation hole also can also be a plurality of for other, the quantity of electric unit is not more than the quantity of accommodation hole, when the quantity of electric unit is fewer than the quantity of accommodation hole, it is empty having in part accommodation hole, can place other communication or transmission of electricity medium or reserve.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, is characterized in that the central axis of described a plurality of accommodation holes is on the same face of cylinder.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, is characterized in that described a plurality of accommodation hole is symmetrical in position fixation element.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, the material that it is characterized in that described position fixation element is pottery or polytetrafluoroethylene.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, is characterized in that the central authorities of position fixation element also have a reinforcement 9.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, is characterized in that described ground plane consists of many copper bars or aluminium bar.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to cable core axis is coated on outside the second protective layer.
Separate type lightning protected cable described above, while it is characterized in that described ground plane is coated on outside the second protective layer to favour the direction of cable core axis, coated pitch is 15-30 times of the second protective layer diameter.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, is characterized in that described smooth unit and electric unit are that parallel mode is distributed in cable core or is distributed in cable core in the stranded mode of one direction spiral.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, it is characterized in that described the first protective layer be longitudinally or the mode of spiral be coated on outside cable core; While being longitudinally coated, the overlapping width of overlap joint is 2-4mm; During helical coated, overlap joint Duplication is 15%-30%.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, the material that it is characterized in that described insulating barrier is polyvinyl chloride or high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, the material that it is characterized in that described oversheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, the material that it is characterized in that described inner sheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
Separate type lightning protected cable described in above-mentioned arbitrary embodiment, it is characterized in that described the first protective layer, the second protective layer are all synthetic mica tapes, and the thickness of mica tape is 0.1mm-2mm.
In the utility model, ground plane is metal, and the inner face of armour is non-coating layer with ground plane contact-making surface, therefore be also metal level, makes not only adjacent contact of ground plane, and armour carried out parallel connection, makes ground plane reach less resistance value, standing thunderstorm hour, the caloric value in short-term of ground plane adds little, and the probability that therefore thunderbolt is blown reduces greatly, in addition, steel dress layer has also played armouring, against pressure, anti-effect of hitting, the existence of the first protective layer, the second protective layer, isolated widely heat, in thunderbolt situation, although may produce a large amount of heats, but this heat is under the isolation of the first protective layer, the second protective layer, make the work of light unit in cable core, electric unit unaffected, in addition, thunderbolt high temperature can not enter cable core gap after inner sheath is melted, and therefore, after thunderbolt, when temperature declines, sheath still can solidify, and does not substantially affect cable performance, and it is quite convenient to safeguard, in the utility model, adopt position fixation element that electric unit has been carried out to physical isolation, and the material of position fixation element is resistant to elevated temperatures nonmetal, non-conductive high insulating material, therefore, even at electric unit traffic overload or be subject under the heavy current impact in short-term that causes of thunderbolt in use, also can not affect the normal transmission of electric power, through test, even if insulating barrier melts down completely, non-conductive and high-fire resistance due to position fixation element, still can not make the conductor contact in any two insulated wires, thereby produce the phenomenon of two-phase or multiphase short circuit, therefore still can normal transmission electric power, in the utility model, electric unit can be put into easily accommodation hole or take out from accommodation hole, and the making of position fixation element is also very simple, when position fixation element adopts polytetrafluoroethylene, opening can be done littlely, utilizes the elasticity of polytetrafluoroethylene to realize putting into and taking out of electric unit, when adopting pottery, opening can suitably be done greatly, certainly, while adopting polytetrafluoroethylene, opening also can be made larger, takes out like this and puts into more convenient, in the utility model, while having reinforcement, reinforcement should adopt nonmetallic materials, as the intertwist body of fiberglass-reinforced plastic lever or fiberglass-reinforced plastic lever or aramid yarn or aramid yarn bundle or other flexible or rigid reinforcement material, can make like this power of bearing of the present utility model greatly strengthen.
Cable of the present utility model when ground plane is parallel with cable core axis, can be produced together in oversheath extrusion process, does not need other stranded operation, and therefore, speed of production is faster, cost is lower.
Therefore, the utlity model has following main beneficial effect: making is simple, speed of production is fast, and ground plane resistivity is lower, maintenance cost is lower; Still can normal transmission electric power after high load capacity or thunderbolt.
The utility model is not limited to above-mentioned preferred forms, should be appreciated that design of the present utility model can be by other various forms enforcement utilizations, and they drop in protection range of the present utility model equally.
Claims (8)
1. separate type lightning protected cable, includes a plurality of electric units, inner sheath, armour, oversheath, ground plane, and electric unit consists of conductor and the insulating barrier that envelopes conductor; Inner sheath extrusion molding is coated on outside the first protective layer, and inner sheath is coated with the second protective layer, and ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and oversheath extrusion molding is coated on outside armour; Armour is one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; It is characterized in that having an integrated position fixation element in the first protective layer, have a plurality of not connected accommodation holes between two in position fixation element, described electric unit is distributed in accommodation hole, and in each accommodation hole, only has an electric unit; Each accommodation hole has an opening that is positioned at position fixation element edge, and electric unit can be inserted accommodation hole or from accommodation hole and take out from opening part; Except opening part, the edge of position fixation element is on the same face of cylinder.
2. separate type lightning protected cable according to claim 1, is characterized in that the central axis of described a plurality of accommodation holes is on the same face of cylinder.
3. according to claim 1 or separate type lightning protected cable claimed in claim 2, it is characterized in that described a plurality of accommodation hole is symmetrical in position fixation element.
4. separate type lightning protected cable according to claim 3, the material that it is characterized in that described position fixation element is pottery or polytetrafluoroethylene.
5. separate type lightning protected cable according to claim 4, is characterized in that the central authorities of described position fixation element have a reinforcement.
6. separate type lightning protected cable according to claim 5, is characterized in that described ground plane consists of many copper bars or aluminium bar.
7. separate type lightning protected cable according to claim 6, is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to cable core axis is coated on outside the second protective layer.
8. separate type lightning protected cable according to claim 6, while it is characterized in that described ground plane is coated on outside the second protective layer to favour the direction of cable core axis, coated pitch be the second protective layer diameter 15-30 doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299378.1U CN203882701U (en) | 2014-06-07 | 2014-06-07 | Split lightning-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299378.1U CN203882701U (en) | 2014-06-07 | 2014-06-07 | Split lightning-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882701U true CN203882701U (en) | 2014-10-15 |
Family
ID=51683176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420299378.1U Expired - Lifetime CN203882701U (en) | 2014-06-07 | 2014-06-07 | Split lightning-proof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882701U (en) |
-
2014
- 2014-06-07 CN CN201420299378.1U patent/CN203882701U/en not_active Expired - Lifetime
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Address after: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang town southeast of Changshu Development Zone, No. 8 Chang kunlu Patentee after: JIANGSU ZHONGLI GROUP Co.,Ltd. Address before: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang town southeast of Changshu Development Zone, No. 8 Chang kunlu Patentee before: ZHONGLI SCI-TECH GROUP Co.,Ltd. |
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Granted publication date: 20141015 |