Optical fiber heat shrink tube convenient for butt joint of optical fibers

Abstract

The utility model relates to the field of optical fiber heat shrink tubes, in particular to an optical fiber heat shrink tube convenient for optical fiber butt joint, which comprises an outer protective tube body, a main body used for protecting optical fiber butt joint, a stainless steel needle and a main heat shrink tube arranged in the outer protective tube body and used for enhancing the protective capability of the outer protective tube body, an inner movable groove is formed in the main heat shrink tube, and a first end heat shrink tube is movably connected into the inner movable groove. According to the utility model, the main heat shrink tube, the first end head heat shrink tube, the main hot melting tube and the second end head heat shrink tube are arranged, the whole outer protection tube body is firstly sleeved outside the optical fiber line body, and then after the optical fiber butt joint is completed, according to the current optical fiber butt joint position and the length of the butt joint position needing to be protected, the optical fiber line body can be protected; and by stretching the first end heat shrink tube and the second end heat shrink tube, the heat shrink tube outer anti-drop rings of the first end heat shrink tube and the second end heat shrink tube are clamped at the outlet of the main heat shrink tube.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber heat shrink tubes, in particular to an optical fiber heat shrink tube which is convenient for optical fiber connection. Background Art

[0002] Fiber optic heat shrink tubing is a material that can shrink by heating to protect or connect optical fibers. It is made of polyolefin or epoxy resin and has hot melt adhesive. Its function is to apply pressure to the optical fiber to prevent the optical fiber from being bent, twisted and stretched during use, and at the same time reduce the influence of external noise. The working principle of fiber optic heat shrink tubing is that during the heat shrinking process, due to the special structure and material of the tube, it can tightly cover the surface of the optical fiber and fix it. Its interior is coated with a layer of hot melt adhesive, which will dissolve when heated and flow into the tiny gaps on the surface of the optical fiber, thereby further fixing the optical fiber.

[0003] After searching, a fiber optic heat shrink tube with publication number CN216792498U is found, which specifically discloses a fiber optic heat shrink tube, including a heat shrink tube sleeve, a hot melt tube is arranged on the inner side of the heat shrink tube sleeve, a tooth connection portion is arranged between the hot melt tube and the heat shrink tube sleeve, a shrinkage groove is arranged on the inner surface of the hot melt tube, a protective sleeve is arranged on the outer side of the heat shrink tube sleeve, a snap-in tooth groove is opened at one end of the protective sleeve, an elastic tooth piece is arranged on the inner side of the snap-in tooth groove, a corrosion-resistant layer is arranged on the outer side of the protective sleeve, and a weather-resistant layer is arranged on the outer side of the corrosion-resistant layer. The utility model solves the problem that there are many existing fiber optic models and most heat shrink tubes are used one-to-one through the functions of shrinkage groove, snap-in tooth groove, elastic tooth piece and protective sleeve, otherwise it is easy to have a loose closure, which in turn limits the development of heat shrink tubes. At the same time, the outer side of the fiber optic heat shrink tube does not have a protective function, and when a collision occurs, it is easy to affect the connected optical fiber.

[0004] During use of existing optical fiber heat shrink tubes, due to the different lengths of the optical fiber lines to be connected, when performing optical fiber docking, it is necessary to manually guide the optical fiber line through the optical fiber heat shrink tube, and then dock the optical fiber lines according to the specified position, and then introduce the docked optical fiber line into the optical fiber heat shrink tube. Such operation is too cumbersome, and the above-mentioned comparative case lacks the means to freely adjust the position of the optical fiber heat shrink tube. Therefore, under long-term use, due to the different docking positions of the optical fiber lines and the lengths that need to be protected, the optical fiber heat shrink tubes with fixed lengths are not only inconvenient for optical fiber docking, but also have insufficient protection capabilities for the docking position.

[0005] Therefore, it is necessary to invent an optical fiber heat shrink tube that is convenient for optical fiber docking to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an optical fiber heat shrink tube that is convenient for optical fiber docking. The main heat shrink tube, the first end heat shrink tube, the main hot melt tube and the second end heat shrink tube are used to make the first end heat shrink tube, the main hot melt tube and the second end heat shrink tube become a whole, which can be stretched to any length, thereby extending the protection range of the optical fiber docking position. In addition, the method of first docking the optical fiber body and then sleeve the optical fiber heat shrink tube makes the optical fiber heat shrink tube easy to install. At the same time, the position of the optical fiber heat shrink tube on the optical fiber body can be adjusted arbitrarily before hot melting. The stainless steel needle inside the outer protective tube body also improves the protection of the first end heat shrink tube, the main hot melt tube and the second end heat shrink tube. The effect of force is to solve the problem in the prior art that during the use of the optical fiber heat shrink tube, due to the different lengths of the optical fiber lines to be connected, when the optical fibers are connected, it is necessary to manually guide the optical fiber lines through the optical fiber heat shrink tube, and then connect the optical fiber lines according to the specified position, and then introduce the connected optical fiber lines into the optical fiber heat shrink tube. Such operation is too cumbersome, and the above-mentioned comparative case lacks the means to freely adjust the position of the optical fiber heat shrink tube. In this way, after long-term use, due to the different docking positions of the optical fiber lines and the different lengths to be protected, the optical fiber heat shrink tube with a fixed length is not only inconvenient for optical fiber docking, but also has insufficient protection capacity for the docking position.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an optical fiber heat shrink tube for facilitating optical fiber docking, comprising an outer protective tube body for protecting the main body of the optical fiber docking;

[0008] A stainless steel needle is arranged inside the outer protective tube body to enhance the protective capability of the outer protective tube body, and a main heat shrink tube is arranged inside the outer protective tube body, an inner movable groove is arranged inside the main heat shrink tube, a first end heat shrink tube is movably connected inside the inner movable groove, an outer anti-slip ring of the heat shrink tube is fixedly installed outside the first end heat shrink tube, and an inner anti-slip ring of the heat shrink tube is fixedly installed inside the first end heat shrink tube;

[0009] The main hot melt tube is arranged inside the first end heat shrink tube, and is used to provide protection for the optical fiber docking position. The outside of the main hot melt tube is fixedly installed with an outer anti-slip ring of the hot melt tube. The inside of the main hot melt tube is provided with an optical fiber body, and the outside of the main hot melt tube is movably connected with the second end heat shrink tube.

[0010] Preferably, the number of the stainless steel needles is set to be multiple, and the multiple stainless steel needles are distributed in a ring array inside the outer protective tube body.

[0011] Preferably, the main hot-melt tube is movably connected to the first end heat shrink tube, and the first end heat shrink tube is movably connected to the main heat shrink tube.

[0012] Preferably, a wire threading rack is fixedly installed inside the first end heat shrink tube, a wire threading tube is fixedly installed outside the first end heat shrink tube, and an end clamp is fixedly installed outside the wire threading tube.

[0013] Preferably, a first hot-melt protective layer is pasted inside the second end heat shrink tube, and a second hot-melt protective layer is pasted inside the main hot-melt tube.

[0014] Preferably, the first hot-melt protective layer is tightly fitted to the second end heat shrink tube, and the material of the first hot-melt protective layer is hot-melt adhesive.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model is provided with a main heat shrinkable tube, a first end heat shrinkable tube, a main hot melt tube and a second end heat shrinkable tube. First, the entire outer protective tube body is sheathed on the outside of the optical fiber line body. Then, after the optical fiber is docked, according to the current optical fiber docking position and the length of the docking position that needs to be protected, the first end heat shrinkable tube and the second end heat shrinkable tube are stretched, so that the outer anti-slip rings of the heat shrinkable tubes of the first end heat shrinkable tube and the second end heat shrinkable tube are stuck at the outlet of the main heat shrinkable tube. Then, the outer anti-slip rings of the hot melt tubes of the main heat shrinkable tubes are abutted against the first end heat shrinkable tube and the second end heat shrinkable tubes by being stretched. The end heat shrink tube and the second end heat shrink tube are on the anti-slip ring inside the heat shrink tube, so that the first end heat shrink tube, the main hot melt tube and the second end heat shrink tube become a whole, which can be stretched to any length, extending the protection range of the optical fiber docking position, and the method of first docking the optical fiber body and then sheathing the optical fiber heat shrink tube makes the optical fiber heat shrink tube easy to install, and the position of the optical fiber heat shrink tube on the optical fiber body can be adjusted arbitrarily before hot melting, and the stainless steel needle inside the outer protective tube body also improves the protection ability of the first end heat shrink tube, the main hot melt tube and the second end heat shrink tube;

[0017] 2. The utility model is provided with a threading frame, a threading tube, an end clamp, a first hot-melt protective layer and a second hot-melt protective layer. When the optical fiber heat shrink tube is used, a threading tube is also provided outside the first end heat shrink tube and the second end heat shrink tube, thereby extending the contact range with the optical fiber body and reducing the influence of the drag force on the internal optical fiber docking position. At the same time, a threading frame is also provided inside the first end heat shrink tube and the second end heat shrink tube to facilitate the guidance of the optical fiber body when the optical fiber body passes through the optical fiber heat shrink tube. When the optical fiber heat shrink tube is hot-melted, the first end heat shrink tube, the main hot-melt tube and the second end heat shrink tube are all fitted with the first hot-melt protective layer and the second hot-melt protective layer inside. In this way, the first end heat shrink tube, the main hot-melt tube and the second end heat shrink tube can be more closely fitted to the outside of the optical fiber docking position, thereby providing protection for the optical fiber docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the stainless steel needle structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the first end heat shrink tube of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the threading tube of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the second end heat shrink tube of the utility model.

[0024] Description of reference numerals:

[0025] 1. Outer protective tube body; 2. Stainless steel needle; 3. Main heat shrink tube; 4. Inner movable groove; 5. Heat shrink tube at the first end; 6. Outer anti-slip ring of heat shrink tube; 7. Inner anti-slip ring of heat shrink tube; 8. Main hot melt tube; 9. Outer anti-slip ring of hot melt tube; 10. Threading rack; 11. Threading tube; 12. End clamp; 13. Optical fiber body; 14. Heat shrink tube at the second end; 15. First hot melt protective layer; 16. Second hot melt protective layer. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5 The optical fiber heat shrink tube shown is convenient for optical fiber docking, and includes an outer protective tube body 1 for protecting the main body of the optical fiber docking;

[0028] A stainless steel needle 2 is arranged inside the outer protective tube body 1 to enhance the protective capability of the outer protective tube body 1, and a main heat shrink tube 3 is arranged inside the outer protective tube body 1, an inner movable groove 4 is arranged inside the main heat shrink tube 3, a first end heat shrink tube 5 is movably connected inside the inner movable groove 4, an outer heat shrink tube anti-slip ring 6 is fixedly installed outside the first end heat shrink tube 5, and an inner heat shrink tube anti-slip ring 7 is fixedly installed inside the first end heat shrink tube 5;

[0029] The main hot melt tube 8 is arranged inside the first end heat shrink tube 5 to provide protection for the optical fiber docking position, and a hot melt tube outer anti-slip ring 9 is fixedly installed on the outside of the main hot melt tube 8, an optical fiber line body 13 is arranged inside the main hot melt tube 8, and a second end heat shrink tube 14 is movably connected to the outside of the main hot melt tube 8. By stretching the first end heat shrink tube 5 and the second end heat shrink tube 14, the heat shrink tube outer anti-slip ring 6 of the first end heat shrink tube 5 and the second end heat shrink tube 14 is stuck at the outlet of the main heat shrink tube 3, and then stretched by the first end heat shrink tube 5 and the second end heat shrink tube 14, the hot melt tube outer anti-slip ring 9 of the main hot melt tube 8 contacts the heat shrink tube inner anti-slip ring 7 inside the first end heat shrink tube 5 and the second end heat shrink tube 14, so that the first end heat shrink tube 5, the main hot melt tube 8 and the second end heat shrink tube 14 become a whole and can be stretched to any length.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the number of stainless steel needles 2 is set to be multiple, and the multiple stainless steel needles 2 are distributed in a circular array inside the outer protective tube body 1. The stainless steel needles 2 inside the outer protective tube body 1 also improve the protection ability of the first end heat shrink tube 5, the main hot melt tube 8 and the second end heat shrink tube 14. The main hot melt tube 8 is movably connected to the first end heat shrink tube 5, and the first end heat shrink tube 5 is movably connected to the main heat shrink tube 3. The first end heat shrink tube 5, the main hot melt tube 8 and the second end heat shrink tube 14 become a whole, which can be stretched to any length, thereby extending the protection range of the optical fiber docking position. A wire threading rack 10 is fixedly installed inside the first end heat shrink tube 5, a wire threading tube 11 is fixedly installed outside the first end heat shrink tube 5, and an end clamp 12 is fixedly installed outside the wire threading tube 11. A wire threading rack 10 is also arranged inside the first end heat shrink tube 5 and the second end heat shrink tube 14 to facilitate the guidance of the optical fiber body 13 when the optical fiber body 13 passes through the optical fiber heat shrink tube.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, the interior of the second end heat shrink tube 14 is pasted with a first hot-melt protective layer 15, and the interior of the main hot-melt tube 8 is pasted with a second hot-melt protective layer 16. When the optical fiber heat shrink tube is hot-melted, the interiors of the first end heat shrink tube 5, the main hot-melt tube 8 and the second end heat shrink tube 14 are all pasted with the first hot-melt protective layer 15 and the second hot-melt protective layer 16. In this way, the first end heat shrink tube 5, the main hot-melt tube 8 and the second end heat shrink tube 14 can be more closely fitted to the outside of the optical fiber docking position to provide protection for the optical fiber docking. The first hot-melt protective layer 15 is tightly fitted to the second end heat shrink tube 14. The material of the first hot-melt protective layer 15 is hot-melt adhesive. The second end heat shrink tube 14 has a simple structure and low cost. If a fault occurs, it is convenient to replace the entire optical fiber heat shrink tube in time without delaying the normal optical fiber docking work.

[0032] The practical working principle of the present invention is as follows: before carrying out the optical fiber docking work, first take out the two optical fiber lines 13 that need to be docked, and use the inner movable groove 4 to stretch the first end heat shrink tube 5, the main hot melt tube 8, and the second end heat shrink tube 14 into the inner part of the outer protective tube body 1, so as to facilitate the docking of the optical fiber line body 13, and then put the entire outer protective tube body 1 on the outside of the optical fiber line body 13. During the sheathing process, the first end heat shrink tube 5 and the second end heat shrink tube 14 are also provided with a threading tube 11 on the outside, so as to extend the contact range with the optical fiber line body 13 and reduce the influence of the drag force on the internal optical fiber docking position. The first end heat shrink tube 5 and the second end heat shrink tube 14 are The part is also provided with a threading frame 10 to facilitate the guidance of the optical fiber body 13 when the optical fiber body 13 passes through the optical fiber heat shrink tube, and then the optical fiber body 13 passing through the outer protective tube body 1 is connected to another optical fiber body 13. After the optical fiber connection is completed, according to the current optical fiber connection position and the length of the connection position that needs to be protected, the first end heat shrink tube 5 and the second end heat shrink tube 14 are stretched, so that the heat shrink tube outer anti-slip ring 6 of the first end heat shrink tube 5 and the second end heat shrink tube 14 is stuck at the outlet of the main heat shrink tube 3, and then the heat shrink tube outer anti-slip ring 9 of the main hot melt tube 8 is resisted by the stretching of the first end heat shrink tube 5 and the second end heat shrink tube 14. The tube 5 and the anti-detachment ring 7 inside the heat shrink tube 14 at the second end make the first end heat shrink tube 5, the main hot melt tube 8 and the second end heat shrink tube 14 become a whole, which can be stretched to any length, thereby extending the protection range of the optical fiber docking position. In addition, the method of first docking the optical fiber line body 13 and then sleeve the optical fiber heat shrink tube makes it easy to install the optical fiber heat shrink tube. Then, before hot melting, the position of the optical fiber heat shrink tube on the optical fiber line body 13 can be adjusted at will. The stainless steel needle 2 inside the outer protective tube body 1 also improves the protection ability of the first end heat shrink tube 5, the main hot melt tube 8 and the second end heat shrink tube 14. After the position of the optical fiber heat shrink tube is adjusted, the entire The optical fiber heat shrink tube is hot-melted. When the optical fiber heat shrink tube is hot-melted, the first end heat shrink tube 5, the main hot-melt tube 8 and the second end heat shrink tube 14 are all adhered to the first hot-melt protective layer 15 and the second hot-melt protective layer 16. In this way, the first end heat shrink tube 5, the main hot-melt tube 8 and the second end heat shrink tube 14 can be more closely adhered to the outside of the optical fiber docking position to provide protection for the optical fiber docking. Finally, after completing the installation and use of all optical fiber heat shrink tubes according to the above operations, the device can be maintained daily. The material of the first hot-melt protective layer 15 is: hot-melt adhesive. In this way, the use process of the optical fiber heat shrink tube that is convenient for optical fiber docking is completed.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An optical fiber heat shrink tube for facilitating optical fiber docking, characterized in that: include An outer protective tube body (1) is used to protect the main body of the optical fiber docking; A stainless steel needle (2) is arranged inside the outer protective tube body (1) and is used to enhance the protective capability of the outer protective tube body (1); a main heat shrink tube (3) is arranged inside the outer protective tube body (1); an inner movable groove (4) is arranged inside the main heat shrink tube (3); a first end heat shrink tube (5) is movably connected inside the inner movable groove (4); an outer heat shrink tube anti-slip ring (6) is fixedly installed outside the first end heat shrink tube (5); and an inner heat shrink tube anti-slip ring (7) is fixedly installed inside the first end heat shrink tube (5); The main hot melt tube (8) is arranged inside the first end heat shrink tube (5) and is used to provide protection for the optical fiber docking position. The outside of the main hot melt tube (8) is fixedly installed with a hot melt tube outer anti-slip ring (9). The inside of the main hot melt tube (8) is provided with an optical fiber line body (13). The outside of the main hot melt tube (8) is movably connected with a second end heat shrink tube (14).

2. The optical fiber heat shrink tube for facilitating optical fiber docking according to claim 1, characterized in that: The number of the stainless steel needles (2) is set to be multiple, and the multiple stainless steel needles (2) are distributed in a ring array inside the outer protective tube body (1).

3. The optical fiber heat shrink tube for facilitating optical fiber docking according to claim 1, characterized in that: The main hot-melt tube (8) is movably connected to the first end heat shrink tube (5), and the first end heat shrink tube (5) is movably connected to the main heat shrink tube (3).

4. The optical fiber heat shrink tube for facilitating optical fiber docking according to claim 1, characterized in that: A wire threading rack (10) is fixedly installed inside the first end heat shrink tube (5), a wire threading tube (11) is fixedly installed outside the first end heat shrink tube (5), and an end clamp (12) is fixedly installed outside the wire threading tube (11).

5. The optical fiber heat shrink tube for facilitating optical fiber docking according to claim 1, characterized in that: A first hot-melt protective layer (15) is pasted inside the second end heat shrink tube (14), and a second hot-melt protective layer (16) is pasted inside the main hot-melt tube (8).

6. The optical fiber heat shrink tube for facilitating optical fiber docking according to claim 5, characterized in that: The first hot-melt protective layer (15) is tightly fitted to the second end heat shrink tube (14), and the material of the first hot-melt protective layer (15) is hot-melt adhesive.

Images