A kind of cable using spiral skeleton
The application is that name is called: a kind of spiral skeleton and use the cable of this skeleton, application number is 201310030180.3, the applying date is: the divisional application of the patent of invention of on 01 28th, 2013
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Technical field
The invention belongs to cable material and technical field of cables, especially relate to a kind of spiral skeleton and use the cable of this skeleton
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Background technology
Along with the development of society, cable is widely used, and in communication technical field, signal cable is widely used.In prior art, signal cable normally forms small cable core unit afterwards by many holding wires are stranded, then multiple small cable core is formed large cable core by stranded mode again, then is formed at large cable core outer cladding protective layer.The defect that this cable exists is when a small amount of holding wire of an actual needs, needs large cable core to move back stranded, then takes out small cable core, move back stranded again to small cable core, the holding wire needed for taking-up; Therefore operation quite trouble, and in the middle of whole cable during construction, need O. cable cross section, also will connect untapped holding wire after the holding wire of needs has connected, process etc., and therefore, construction is inconvenience extremely
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Summary of the invention
In order to solve the problem, the invention provides a kind of spiral skeleton, it can convenient construction; Further, the present invention also will disclose the cable adopting this kind of spiral skeleton; They realize by the following technical solutions.
A kind of spiral skeleton, is characterized in that it is by the frame body being positioned at central authorities, forms from frame body outer rim outward extending multi-disc bone leaf and the reinforcement that is positioned at frame body inside; Described spiral skeleton is formed as one; Described bone leaf is outer in spiral distribution and the hand of spiral that is all bone leaves is the same in frame body; The pitch of all bone leaves is equal; On left view, the distance between adjacent bone leaf is equal.
Spiral skeleton described above, is characterized in that the material of described frame body is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon.
Spiral skeleton described above, is characterized in that the material of described bone leaf is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon; And the material of bone leaf is the same with the material of frame body.
Spiral skeleton described above, is characterized in that the material of described frame body and bone leaf all can be following material: include: the low density polyethylene (LDPE) of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Or include the LLDPE of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Or include the medium density polyethylene of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Or include the high density polyethylene (HDPE) of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Or include the polypropylene of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Described elastomer is thermoplastic polyurethane or polyolefins thermoplastic elastomer or the polyolefinic thermoplastic elastomer (TPE) of Halogen or acrylate thermoplastic's elastomer or styrenic elastomer.
Spiral skeleton described above, is characterized in that described spiral skeleton is in office and gets 10 centimetres one section and do after 180 degree of doublings, on skeleton without any eyesight visible crack and restorable time≤5 seconds.
Spiral skeleton described above, it is characterized in that described spiral skeleton is in office and get 10 centimetres one section, one end is fixed, the other end is after 720 degree of torsions are forward or backwards done in one end, without any eyesight visible crack on skeleton, and when turning the complete relieving other end, spiral skeleton restorable time≤5 seconds.
Spiral skeleton described above, is characterized in that the material of described reinforcement is polyester yarn or water blocking yarn or glass fiber yarn or steel wire or copper wire or aramid yarn or glass fiber yarn or fiberglass-reinforced plastic lever.
Spiral skeleton described above, is characterized in that the quantity of described bone leaf is the integer between 2-12.
Spiral skeleton described above, is characterized in that on arbitrary cross section, and described bone leaf is fan-shaped, and one end of less arc length is connected with frame body.
Spiral skeleton described above, is characterized in that described bone leaf distributes in frame body external symmetry.
Spiral skeleton described above, is characterized in that on arbitrary cross section, and the outward flange of described all bone leaves is circumferentially same.
A kind of cable, is characterized in that it includes:
A spiral skeleton described above, described spiral skeleton is positioned at central authorities;
At least one transmission line, described transmission line is arranged in the skeleton grooves that adjacent bone leaf is formed;
A protective layer be positioned at outside spiral skeleton.
Cable described above, is characterized in that: described transmission line is optical fiber or holding wire or power transmission line; In the skeleton grooves having transmission line, when having many transmission lines, transmission line is mutual stranded rear placement or not stranded placement.
Cable described above, is characterized in that the material of described protective layer is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or polyvinyl chloride or nylon.
Cable described above, is characterized in that the thickness of described protective layer is 0.5mm-3.0mm.
Cable described above, it is characterized in that also can having protection against the tide aluminium strip or waterstop between spiral skeleton and protective layer or anti-ly to nibble, steel band against pressure or work the composite band that other that shield external signal and/or stop the outside leakage effects of internal signal comprise metal material.
The skeleton grooves that spiral skeleton in the present invention is formed is spiral and direction is identical, pitch is equal, therefore when producing cable, does not need the other stranded equipment of large cable core, very arrive and can omit the stranded equipment of small cable core, save operation, saved process cost; The equal consistency that ensure that the length of the transmission line in all skeleton grooves of pitch, therefore ensure that the consistency of the quality of transmission line; Because transmission line is arranged in different skeleton grooves, and can be stranded mode or not stranded placement, therefore only need move back strand small cable core or not move back strand and directly take transmission line; In addition, when taking transmission line, only need the corresponding skeleton grooves of stripping, therefore effectively protect cable, construct more convenient, efficiency is higher, cable longer service life.
In the present invention, contain elastomer in the material of frame body and bone leaf, therefore, skeleton of the present invention has excellent elastic recovery properties, make skeleton of the present invention in cable time, even if cable there occurs 720 degree looping, also can restore to the original state fast, greatly increase the performance of cable.
The present invention has following main beneficial effect: skeleton production process is simple, and the equipment investment amount of money is few, and cable construction is more convenient, quick; Cable longer service life.
Accompanying drawing explanation
Fig. 1 is the perspective view after a section of spiral skeleton in the invention process example 1 is dissected.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the left view that Fig. 1 reduces.
Fig. 4 is the perspective view of the invention process example 2.
Fig. 5 is the front view of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail; Embodiment 1 is the embodiment of the spiral skeleton of the present invention, and embodiment 2 is the embodiment of cable of the present invention.
embodiment 1
Ask for an interview Fig. 1 to Fig. 3, a kind of spiral skeleton 1, it is characterized in that it is by the frame body 16 being positioned at central authorities, forms from the outward extending four bone leaves of frame body outer rim and the reinforcement 15 that is positioned at frame body inside; Described four bone leaves are the first bone leaf 11, the second bone leaf 12, the 3rd bone leaf 13 and the 4th bone leaf 14 that distribute clockwise on cross section; Described spiral skeleton is formed as one; Described bone leaf is outer in spiral distribution and the hand of spiral that is all bone leaves is the same in frame body; The pitch of all bone leaves is equal; On left view, the distance D between adjacent bone leaf is equal.
Spiral skeleton described above, is characterized in that described bone leaf can be other multi-disc.
Spiral skeleton described above, is characterized in that the material of described frame body is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon.
Spiral skeleton described above, is characterized in that the material of described bone leaf is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or nylon; And the material of bone leaf is the same with the material of frame body.
Spiral skeleton described above, is characterized in that the material of described reinforcement is polyester yarn or water blocking yarn or glass fiber yarn or steel wire or copper wire or aramid yarn or glass fiber yarn or fiberglass-reinforced plastic lever.
Spiral skeleton described above, is characterized in that the quantity of described bone leaf is the integer between 2-12.
Spiral skeleton described above, is characterized in that on arbitrary cross section, and described bone leaf is fan-shaped, and one end of less arc length is connected with frame body.
Spiral skeleton described above, is characterized in that described bone leaf distributes in frame body external symmetry.
Spiral skeleton described above, is characterized in that on arbitrary cross section, and the outward flange of described all bone leaves is circumferentially same.
Spiral skeleton described above, is characterized in that the material of described frame body and bone leaf all can be following material: include: the low density polyethylene (LDPE) of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Or include the LLDPE of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Or include the medium density polyethylene of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Or include the high density polyethylene (HDPE) of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Or include the polypropylene of 96%-99.5% percentage by weight, the elastomer of 0.5%-4% percentage by weight; Described elastomer is thermoplastic polyurethane or polyolefins thermoplastic elastomer or the polyolefinic thermoplastic elastomer (TPE) of Halogen or acrylate thermoplastic's elastomer or styrenic elastomer.
Spiral skeleton described above, is characterized in that described spiral skeleton is in office and gets 10 centimetres one section and do after 180 degree of doublings, on skeleton without any eyesight visible crack and restorable time≤5 seconds.
Spiral skeleton described above, it is characterized in that described spiral skeleton is in office and get 10 centimetres one section, one end is fixed, the other end is after 720 degree of torsions are forward or backwards done in one end, without any eyesight visible crack on skeleton, and when turning the complete relieving other end, spiral skeleton restorable time≤5 seconds.
embodiment 2
Ask for an interview Fig. 4 to Fig. 5, and referring to figs. 1 to Fig. 3, a kind of cable, is characterized in that it includes:
A spiral skeleton 1 described above, described spiral skeleton is positioned at central authorities;
Six roots of sensation transmission line 2, described transmission line is arranged in the skeleton grooves that adjacent bone leaf is formed, and is all two transmission lines in three skeleton grooves, has in a skeleton grooves and does not place transmission line;
A protective layer 3 be positioned at outside spiral skeleton.
Certainly, the spiral skeleton in cable described above can also be the skeleton with other multi-disc bone leaf.
Certainly, further, cable described above, is characterized in that, in the skeleton grooves that adjacent bone leaf is formed, having at least in a skeleton grooves and have a transmission line.
Cable described above, is characterized in that: described transmission line is optical fiber or holding wire or power transmission line; In the skeleton grooves having transmission line, when having many transmission lines, transmission line is mutual stranded rear placement or not stranded placement.
Cable described above, is characterized in that the material of described protective layer is low density polyethylene (LDPE) or medium density polyethylene or high density polyethylene (HDPE) or low smoke and zero halogen polyethylene or polyvinyl chloride or nylon.
Cable described above, is characterized in that the thickness of described protective layer is 0.5mm-3.0mm.
Cable described above, it is characterized in that also can having protection against the tide aluminium strip or waterstop between spiral skeleton and protective layer or anti-ly to nibble, steel band against pressure or work the composite band that other that shield external signal and/or stop the outside leakage effects of internal signal comprise metal material.
The skeleton grooves that spiral skeleton in the present invention is formed is spiral and direction is identical, pitch is equal, therefore when producing cable, does not need the other stranded equipment of large cable core, very arrive and can omit the stranded equipment of small cable core, save operation, saved process cost; The equal consistency that ensure that the length of the transmission line in all skeleton grooves of pitch, therefore ensure that the consistency of the quality of transmission line; Because transmission line is arranged in different skeleton grooves, and can be stranded mode or not stranded placement, therefore only need move back strand small cable core or not move back strand and directly take transmission line; In addition, when taking transmission line, only need the corresponding skeleton grooves of stripping, therefore effectively protect cable, construct more convenient, efficiency is higher, cable longer service life.
In the present invention, contain elastomer in the material of frame body and bone leaf, therefore, skeleton of the present invention has excellent elastic recovery properties, make skeleton of the present invention in cable time, even if cable there occurs 720 degree looping, also can restore to the original state fast, greatly increase the performance of cable.
The present invention has following main beneficial effect: skeleton production process is simple, and the equipment investment amount of money is few, and cable construction is more convenient, quick; Cable longer service life.
The present invention is not limited to above-mentioned preferred forms, and should be appreciated that design of the present invention can be implemented to use by other various forms, they drop in protection scope of the present invention equally
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