A kind of microtube joint that is used for micro cable protection
Technical field
The present invention relates to a kind of microtube joint that is used for micro cable protection, belong to the fiber optic cable plant technical field.
Background technology
The optical fiber that is used for communication engineering must be protected in its construction and use, therefore at first optical fiber will be placed little cable or optical cable.In recent years, the microtubule technology that develops rapidly of America and Europe impels the manufacturing of little cable, microtubule and construction all to make significant headway.Little cable than the protective layer material of conventional cable lack, cost is low, because of in batches one by one cloth be placed in the pipeline little cable core number of the initial stage that can reduce.According to market demand, can lay at any time and substitute optical fiber, avoided laying 8~10 years after the above optical fiber utilization factor of hundred cores just reach 30% shortcoming.
Little cable must guarantee the serviceable life at least 20 years, and little in the meantime cable function can not be degenerated.Owing in construction and use, be in outdoor environment, so little cable must possess the bad external environment condition of opposing, as the ability of influences such as sewage, sump oil, low temperature, corrosion.Therefore little cable must be placed microtubule, the two ends of microtubule must seal with the waterproof sealing cap.The microtube joint that does not also have a kind of not only easy to use but also superior performance in the market.
Summary of the invention
The objective of the invention is to propose a kind of microtube joint that is used for micro cable protection, be the manufacturing of microtubule and the construction reliable joint of providing convenience.
The microtube joint that is used for micro cable protection that the present invention proposes comprises outer tube, tube head, tube head deck, turn, packing ring and O-ring seal.The profile of outer tube is the two ends symmetry, and two ends are thicker cylindrical, and the centre is thinner truncated cone, and the inwall at outer tube two ends is provided with boss, and thicker part divides on the cylindrical tube wall and has hole clipping.One end of tube head has edge, and the other end has Ka Tai.The tube head deck is a cylindrical shape, and the cylinder periphery has been cut reed vertically, and an end of reed links to each other with cylindrical wall, and the other end of reed is provided with dop.Tube head is inserted in the tube head deck, the Ka Tai of the end of tube head deck and tube head end is in wringing fit, become a tube head assembly, this tube head assembly and packing ring, turn, the coaxial successively end that is installed in the truncated cone outer tube of O-ring seal ecto-entad, the edge of tube head end is stuck in the end of outer tube, the dop of tube head deck barrel upper reed plate end is stuck in the hole clipping of outer tube tube wall, and O-ring seal is stuck on the boss of outer sleeve inner wall.
The microtube joint that is used for micro cable protection that the present invention proposes; its advantage is simple and reasonable; make whole joint tighness good; impact resistance is strong; corrosion-resistant; air tight under 18 atmospheric pressure, for the manufacturing of microtubule, construction provide safe and reliable joint, and have improved greatly the serviceable life of optical fiber in the microtubule.
Description of drawings
Fig. 1 is the structural representation of the microtube joint that is used for micro cable protection that proposes of the present invention.
Fig. 2 is the structural representation of the outer tube in the microtube joint.
Fig. 3 is the structural representation of the tube head in the microtube joint.
Fig. 4 is the structural representation of the tube head deck in the microtube joint.
Fig. 5 is the structural representation of the turn in the microtube joint.
Fig. 6 is the structural representation of the packing ring in the microtube joint.
Fig. 7 is the structural representation of the O-ring seal in the microtube joint.
Among Fig. 1~Fig. 7, the 1st, tube head, the 2nd, tube head deck, the 3rd, turn, the 4th, packing ring, the 5th, O-ring seal, the 6th, outer tube, the 7th, the hole clipping of outer tube end, the 8th, the boss on the outer sleeve inner wall, the 9th, the Ka Tai of tube head end, the 10th, the edge of the tube head other end, the 11st, the reed on the tube head deck.
Embodiment
The microtube joint that is used for micro cable protection that the present invention proposes comprises outer tube, tube head, tube head deck, turn, packing ring and O-ring seal.The profile of outer tube is the two ends symmetry, and two ends are thicker cylindrical, and the centre is thinner truncated cone, and the inwall at outer tube two ends is provided with boss, and thicker part divides on the cylindrical tube wall and has hole clipping.One end of tube head has edge, and the other end has Ka Tai.The tube head deck is a cylindrical shape, and the cylinder periphery has been cut reed vertically, and an end of reed links to each other with cylindrical wall, and the other end of reed is provided with dop.Tube head is inserted in the tube head deck, the Ka Tai of the end of tube head deck and tube head end is in wringing fit, become a tube head assembly, this tube head assembly and packing ring, turn, the coaxial successively end that is installed in the truncated cone outer tube of O-ring seal ecto-entad, the edge of tube head end is stuck in the end of outer tube, the dop of tube head deck barrel upper reed plate end is stuck in the hole clipping of outer tube tube wall, and O-ring seal is stuck on the boss of outer sleeve inner wall.
Introduce content of the present invention in detail below in conjunction with accompanying drawing.
The microtube joint that is used for micro cable protection that the present invention proposes, its structure comprises outer tube 6, tube head 1, tube head deck 2, turn 3, packing ring 4 and O-ring seal 5 as shown in Figure 1.
The structure of outer tube as shown in Figure 2, its profile is the two ends symmetry, two ends are thicker cylindrical, the centre is thinner truncated cone, the inwall at outer tube two ends is provided with boss 8, thicker part divides and has hole clipping 7 on the cylindrical tube wall.
The structure of tube head as shown in Figure 3, the one end has edge 10, the other end has card platform 9.
The structure of tube head deck is a cylindrical shape as shown in Figure 4, and the cylinder periphery has been cut reed 11 vertically, and an end of reed links to each other with cylindrical wall, and the other end of reed is provided with dop.
Tube head 1 is inserted in the tube head deck 2, the Ka Tai of the end of tube head deck and tube head end is in wringing fit, become a tube head assembly, this tube head assembly and packing ring 4, turn 3, the coaxial successively end that is installed in truncated cone outer tube 6 of O-ring seal 5 ecto-entads, the edge 10 of tube head 1 end is stuck in the end of outer tube 6, the dop of tube head deck 2 barrel upper reed plates 11 ends is stuck in 7 li of the hole clippings of outer tube 6 tube walls, and O-ring seal 5 is stuck on the boss 8 of outer tube 6 inwalls.
The use of microtube joint of the present invention is: insert from the two ends of microtube joint respectively the end of two sections microtubules that will connect, the tube head assembly of being made up of tube head 1, tube head deck 2 tightly is fixed on the end of microtubule in the microtube joint, again because the acting in conjunction of packing ring 4, turn 3, O-ring seal 5, microtubule is partly sealed and air tight at microtube joint, can bear the atmospheric pressure more than 18.
Outer tube in the microtube joint of the present invention is made with the macromolecular material polycarbonate, has very high intensity and toughness, makes microtube joint have good corrosion resistance and impact resistance.