Heat shrink tube tray for optical fiber fusion splicing and fusion splicer

Abstract

The utility model belongs to the technical field of optical fiber fusion splicing devices, and provides a heat shrink tube tray for optical fiber fusion splicing and a fusion splicer, the heat shrink tube tray for optical fiber fusion splicing comprises a base and a bracket, the bracket is hinged with the base, a locking mechanism is arranged between the bracket and the base, and the locking mechanism is used for keeping the bracket and the base at a fixed angle. Therefore, the bracket can support the heat shrink tube. The welding machine comprises a machine body and the heat shrink tube tray for optical fiber welding, a welding seat is arranged at the top of the machine body, the base is detachably connected with the side face of the machine body, and the bracket is located on a welding middle shaft of the welding seat. According to the heat shrink tube tray for optical fiber fusion splicing and the fusion splicer, the heat shrink tube can be supported during optical fiber fusion splicing, so that the heat shrink tube and a fiber core are kept smooth, the free heat shrink tube is prevented from sliding, the fusion splicing efficiency is improved, and the fiber core is prevented from being broken off.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber fusion splicing devices, in particular to a heat shrink tube tray and a fusion splicing machine used for optical fiber fusion splicing. Background Art

[0002] Fiber optic cable is a type of communication cable consisting of two or more glass or plastic optical fiber cores that are located within a protective coating and covered by a plastic PVC outer casing. Signal transmission along the internal optical fiber generally uses infrared rays. Fiber optic fusion splicers are mainly used for the construction and maintenance of optical cables in optical communications, so they are also called cable fusion splicers. The general working principle of a fiber optic fusion splicer is to use a high-voltage electric arc to melt the two optical fiber sections while using a high-precision motion mechanism to smoothly advance the two optical fibers into one, so as to achieve coupling of the optical fiber mode field.

[0003] After the core of the optical fiber is fused, the fusion interface is relatively fragile. In order to protect the fusion-jointed core, it is generally necessary to use a heat shrink tube to wrap the fusion joint to prevent the joint from being exposed or broken, which will affect the signal transmission of the optical fiber. The heat shrink tube needs to be put on one section of the core before fusion. After the fusion is completed, the heat shrink tube is moved to the fusion site and then heated and shrunk so that the heat shrink tube can be tightly wrapped around the surface of the core. Because the inner diameter of the heat shrink tube before heat shrinkage is much larger than the diameter of the core, and the height of the fusion machine itself, a section of the optical fiber will be suspended during fusion. The heat shrink tube can easily slide a long distance along the optical fiber, and the newly fusion-joined core will be relatively fragile. When the heat shrink tube is moved from a long distance to the fusion site, it is likely to break, which will also affect the efficiency of the fusion operation. If the heat shrink tube is located in the suspended part of the optical fiber, the heat shrink tube's own gravity may also cause the fusion-joined core to tilt and break.

[0004] The technical problem to be solved by the present application is: how to solve the problem that the heat shrink tube is in a free state during the welding of the existing welding machine, which affects the efficiency of optical fiber welding and may cause the fiber core to break. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a heat shrink tube tray and a fusion splicer for optical fiber fusion splicing, which can support the heat shrink tube during optical fiber fusion splicing, keep the heat shrink tube and the fiber core smooth, and prevent the free sliding of the heat shrink tube, so as to improve the fusion efficiency and prevent the fiber core from breaking.

[0006] The technical solution adopted by the utility model is: a heat shrink tube tray for optical fiber fusion splicing, comprising a base and a bracket, the bracket and the base are hinged, a locking mechanism is arranged between the bracket and the base, the locking mechanism is used to keep the bracket and the base at a fixed angle so that the bracket can support the heat shrink tube.

[0007] The heat shrink tube tray for optical fiber fusion splicing of the present application is provided with a base and a bracket. The base is fixed on one side of the fusion seat of the fusion splicer, and the bracket is hinged to the base. When idle, the bracket can be folded and stored on the side of the fusion splicer to facilitate carrying or storing the fusion splicer. When fusing the fiber core, the bracket can be unfolded to support the heat shrink tube, so that the heat shrink tube and the fiber core are on the same horizontal plane to avoid bending of the fiber core and prevent the heat shrink tube from sliding away on the fiber core, thereby improving the efficiency of fiber core fusion splicing. The locking mechanism provided between the bracket and the base can enable the bracket to maintain its posture when supporting the heat shrink tube, thereby improving the reliability of the bracket support.

[0008] In some embodiments, the locking mechanism is a damping shaft or a rotating shaft with a ratchet bearing, and the bracket and the base are hingedly connected via the damping shaft or the rotating shaft with a ratchet bearing.

[0009] By adopting the above technical solution and setting the locking mechanism as a damping shaft or a rotating shaft with a ratchet bearing, the posture of the bracket can be maintained when the bracket supports the heat shrink tube, thereby ensuring the reliability of the bracket support.

[0010] In some embodiments, the locking mechanism includes a slot and a block, the slot is provided on the base, the block is connected to the bracket, and when the block is inserted into the slot, the bracket and the base are maintained at a fixed angle so that the bracket can support the heat shrink tube.

[0011] By adopting the above technical solution, the bracket and the base can be kept at a fixed angle through the cooperation of the card slot and the card block, ensuring that the bracket can support the heat shrink tube when the fiber core is welded, and the structure is simple, reliable and low-cost.

[0012] In some embodiments, a positioning groove for positioning the heat shrink tube is provided on the bracket.

[0013] By adopting the above technical solution, the heat shrink tube can be better positioned on the bracket to ensure that the fusion section between the heat shrink tube and the fiber core remains smooth and avoid bending of the fiber core.

[0014] In some embodiments, a ruler is provided on one side of the positioning groove, and an extension direction of the ruler is consistent with an extension direction of the positioning groove.

[0015] By adopting the above technical solution, the operator can intuitively know the length of the heat shrink tube to avoid wasting the heat shrink tube.

[0016] In some embodiments, a rotating shaft is further included, which is disposed at one end of the bracket, and the bracket and the base are hingedly connected via the rotating shaft.

[0017] In some embodiments, a covering mechanism is further provided between the bracket and the base, and the covering mechanism is used to keep the bracket and the base in close contact.

[0018] By adopting the above technical solution, it can be ensured that the bracket and the base remain covered when idle, preventing the bracket from being unfolded and colliding with other objects during carrying or storage, thereby preventing damage.

[0019] In some embodiments, the covering mechanism includes a first magnetic component and a second magnetic component, the first magnetic component is installed on the base, the second magnetic component is installed on the bracket, and the first magnetic component and the second magnetic component are arranged opposite to each other and are magnetically attracted to each other.

[0020] By adopting the above technical solution, the bracket and the base can be ensured to remain covered by utilizing the magnetic attraction between the first magnetic attraction component and the second magnetic attraction component.

[0021] A fusion splicer comprises a body and the above-mentioned heat shrink tube tray for optical fiber fusion splicing. A fusion seat is arranged on the top of the body, the base is detachably connected to the side of the body, and the bracket is located on the fusion center axis of the fusion seat.

[0022] The fusion splicer of the present application arranges a heat shrink tube tray for optical fiber fusion splicing on the side of the fusion seat. When the optical fiber is fused, the bracket is unfolded and kept parallel to the placement plane of the fusion splicer to support the heat shrink tube, so that the heat shrink tube and the fiber core remain smooth and prevent the free sliding of the heat shrink tube, so as to improve the fusion efficiency and prevent the fiber core from breaking.

[0023] In some embodiments, a compartment cover for sealing the maintenance compartment is further provided on the side of the machine body, and the base is detachably connected to the compartment cover.

[0024] By adopting the above technical solution, the base and the compartment cover are detachably connected, and a heat shrink tube tray for optical fiber fusion splicing can be installed without destroying the existing structure of the fusion splicer. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a heat shrink tube tray machine for optical fiber fusion splicing in a preferred embodiment of the utility model;

[0026] Figure 2 for Figure 1 Another perspective structural schematic diagram of the heat shrink tube tray for optical fiber fusion splicing shown;

[0027] Figure 3 for Figure 1 The schematic diagram of the structure of the unfolded bracket of the heat shrink tube tray for optical fiber fusion splicing shown;

[0028] Figure 4 for Figure 3 The schematic diagram of the cross-sectional structure of the heat shrink tube tray for optical fiber fusion splicing in the radial direction of the rotating shaft when the bracket is in an expanded state;

[0029] Figure 5 for Figure 1A schematic structural diagram of an application example of a heat shrink tube tray for optical fiber fusion splicing applied to a fusion splicer;

[0030] Figure 6 for Figure 5 FIG. 1 is a schematic structural diagram of a fusion splicer with a bracket expanded.

[0031] In the figure: 100, heat shrink tube tray for optical fiber fusion splicing; 10, base; 20, bracket; 21, positioning groove; 22, ruler; 30, locking mechanism; 31, card slot; 32, card block; 40, rotating shaft; 50, covering mechanism; 51, first magnetic attraction member; 52, second magnetic attraction member;

[0032] 200, welding machine; 10a, machine body; 11a, welding seat; 12a, compartment cover. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When the number of an element is referred to as "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] See also Figures 1 to 4, which is a preferred embodiment of the utility model, is a heat shrink tube tray 100 for optical fiber fusion splicing, including a base 10 and a bracket 20, the bracket 20 is hinged to the base 10, and a locking mechanism 30 is provided between the bracket 20 and the base 10, and the locking mechanism 30 is used to keep the bracket 20 and the base 10 at a fixed angle so that the bracket 20 can support the heat shrink tube. The heat shrink tube tray 100 for optical fiber fusion splicing of the present application is provided with a base 10 and a bracket 20. The base 10 is fixed on one side of the fusion seat 11a of the fusion splicer 200. The bracket 20 is hinged to the base 10. When idle, the bracket 20 can be folded and stored on the side of the fusion splicer 200 to facilitate the carrying or storage of the fusion splicer 200. When fusing the fiber core, the bracket 20 can be unfolded to support the heat shrink tube so that the heat shrink tube and the fiber core are on the same horizontal plane to avoid bending of the fiber core and prevent the heat shrink tube from sliding away on the fiber core, thereby improving the efficiency of fiber core fusion splicing. The locking mechanism 30 provided between the bracket 20 and the base 10 can enable the bracket 20 to maintain its posture when supporting the heat shrink tube, thereby improving the reliability of the support of the bracket 20.

[0037] like Figure 1 and Figure 3 As shown, one side of the bracket 20 close to the base 10 is recessed inward to form a receiving groove for receiving the base 10. When the bracket 20 is in contact with the base 10, the base 10 is received in the receiving groove, which makes the bracket 20 more beautiful and improves the appearance of the device.

[0038] like Figure 1 and Figure 4 As shown, in this embodiment, the locking mechanism 30 includes a slot 31 and a block 32. The slot 31 is provided on the base 10, and the block 32 is connected to the bracket 20. When the block 32 is inserted into the slot 31, the bracket 20 and the base 10 are kept at a fixed angle, so that the bracket 20 can support the heat shrink tube. By cooperating with the slot 31 and the block 32, the bracket 20 and the base 10 can be kept at a fixed angle, ensuring that the bracket 20 can support the heat shrink tube when the fiber core is welded. The structure is simple, reliable and low-cost.

[0039] Furthermore, if Figure 4 As shown, the card slot 31 is an arc-shaped slot, and the surface of the card block 32 that cooperates with the card slot 31 is an arc surface. This arrangement can facilitate the cooperation between the card block 32 and the card slot 31, reduce friction during relative movement between the two, reduce wear, and extend the service life of the heat shrink tube tray.

[0040] In other embodiments, the locking mechanism 30 is a damping shaft or a rotating shaft 40 with a ratchet bearing, and the bracket 20 and the base 10 are hinged through the damping shaft or the rotating shaft 40 with a ratchet bearing. By setting the locking mechanism 30 as a damping shaft or a rotating shaft 40 with a ratchet bearing, the posture of the bracket 20 can be maintained when the bracket 20 supports the heat shrink tube, thereby ensuring the reliability of the support of the bracket 20. The damping shaft and the rotating shaft 40 with a ratchet bearing are prior arts, so the specific structures of the damping shaft and the rotating shaft 40 with a ratchet bearing are not introduced here. In other embodiments, the locking mechanism 30 can also be a support rod, one end of which is hinged to the base 10 and the other end is in contact with the bracket 20.

[0041] like Figure 2 and Figure 4 As shown, a positioning groove 21 for positioning the heat shrink tube is provided on the bracket 20. By providing the positioning groove 21 on the bracket 20, the heat shrink tube can be better positioned on the bracket 20 to ensure that the heat shrink tube and the fiber core fusion section remain smooth and avoid bending of the fiber core. Furthermore, a ruler 22 is provided on one side of the positioning groove 21, and the extension direction of the ruler 22 is consistent with the extension direction of the positioning groove 21. It is convenient for the operator to intuitively know the length of the heat shrink tube to avoid wasting the heat shrink tube.

[0042] Preferably, the heat shrink tube tray 100 for optical fiber fusion splicing further includes a rotating shaft 40, which is arranged at one end of the bracket 20, and the bracket 20 and the base 10 are hinged through the rotating shaft 40. According to the requirements, the rotating shaft 40 can be arranged to be fixedly connected with the base 10 (or the bracket 20), and then an axial hole for rotationally cooperating with the rotating shaft 40 is opened on the bracket 20 (or the base 10), or the rotating shaft 40 can be arranged as an independent shaft body, and the rotating shaft 40 is respectively rotationally cooperating with the base 10 and the bracket 20. In this embodiment, the rotating shaft 40 is an independent shaft body, and the rotating shaft 40 includes a first shaft rod and a second shaft rod, one end of the first shaft rod is provided with a first shaft head, and the other end is threadedly connected with the second shaft rod, and the end of the second shaft rod away from the first shaft rod is provided with a second shaft head, so that the arrangement can facilitate the assembly of the base 10 and the bracket 20.

[0043] Preferably, a covering mechanism 50 is further provided between the bracket 20 and the base 10, and the covering mechanism 50 is used to keep the bracket 20 in close contact with the base 10. By providing the covering mechanism 50, it can be ensured that the bracket 20 and the base 10 remain covered when idle, and prevent the bracket 20 from being unfolded and colliding with other objects during carrying or storage, thereby preventing damage.

[0044] like Figure 3 and Figure 4As shown, in this embodiment, the covering mechanism 50 includes a first magnetic member 51 and a second magnetic member 52. The first magnetic member 51 is mounted on the base 10, and the second magnetic member 52 is mounted on the bracket 20. The first magnetic member 51 and the second magnetic member 52 are arranged opposite to each other and magnetically attracted to each other. The first magnetic member 51 and the second magnetic member 52 are magnetically attracted to each other, so as to ensure that the bracket 20 and the base 10 remain covered. Optionally, the first magnetic member 51 and the second magnetic member 52 can both be magnets, or one of them can be a magnet and the other can be a metal or non-metal block that can be attracted by a magnet.

[0045] In other embodiments, the covering mechanism 50 may also be configured as a buckle and a buckle groove, or other existing mechanisms that can achieve the same function.

[0046] In order to facilitate the operation of opening or storing the bracket 20 , an anti-slip groove (not marked in the figure) is provided at one end of the bracket 20 away from the rotating shaft 40 .

[0047] See also Figure 5 and Figure 6 , is an application example of the heat shrink tube tray 100 for optical fiber fusion splicing of the utility model: a fusion splicer 200. The fusion splicer 200 includes a body 10a and the above-mentioned heat shrink tube tray 100 for optical fiber fusion splicing, a fusion seat 11a is arranged on the top of the body 10a, the base 10 is detachably connected to the side of the body 10a, and the bracket 20 is located on the fusion center axis of the fusion seat 11a. It should be noted that the fusion center axis of the fusion seat 11a refers to the central axis of the two fusion-spliced ​​fiber cores, and the fusion center axis may coincide with the central axis of the fusion seat 11a, or may not coincide with the central axis of the fusion seat 11a. The fusion splicer 200 of the present application is provided with a heat shrink tube tray 100 for optical fiber fusion splicing on the side of the fusion seat 11a. When the optical fiber is fusion spliced, the bracket 20 is unfolded and kept parallel to the placement plane of the fusion splicer 200 to support the heat shrink tube, so that the heat shrink tube and the fiber core are kept smooth and prevent the free heat shrink tube from sliding, so as to improve the fusion efficiency and prevent the fiber core from breaking. The heat shrink tube tray 100 for optical fiber fusion splicing can be set on the left or right side of the fusion splicer 200 according to the user's habits.

[0048] Optionally, the base 10 and the side of the body 10a can be detachably connected by fastening, plugging, snapping or magnetic attraction.

[0049] Preferably, in order to better support the heat shrink tube, when the bracket 20 is unfolded to the position supporting the heat shrink tube, the bracket 20 is roughly parallel to or on the same horizontal line as the welding center axis of the welding seat 11a, and the positioning groove 21 is preferably coaxially arranged with the welding center axis of the welding seat 11a.

[0050] In this embodiment, a compartment cover 12a for sealing the maintenance compartment is also provided on the side of the machine body 10a, and the base 10 is detachably connected to the compartment cover 12a. The base 10 is detachably connected to the compartment cover 12a, and a heat shrink tube tray 100 for optical fiber fusion splicing can be installed without destroying the existing structure of the fusion splicer 200. Optionally, the base 10 and the compartment cover 12a are detachably connected by plugging, a slot is provided on the compartment cover 12a, and a plug block that matches the slot is provided on the base 10.

[0051] During welding, first, the heat shrink tube is placed on the surface of the optical fiber close to the heat shrink tube tray, and then the bracket 20 is turned upward until the block 32 is inserted into the slot 31, so that the bracket 20 is in a horizontal state, and then the two fiber cores are placed in the welding seat 11a, and the heat shrink tube placed on the surface of the optical fiber is dropped into the positioning slot 21 on the bracket 20. After the two fiber cores are welded, the welded fiber cores are taken out, and the heat shrink tube on the bracket 20 is moved to the welding position, and finally the fiber core and the heat shrink tube are placed in a heating furnace for heating, so that the heat shrink tube shrinks and wraps the fiber core, and the welding operation is completed. When the bracket 20 is not needed, the bracket 20 is turned down and the base 10 is covered. Under the action of the first magnetic suction member 51 and the second magnetic suction member 52, the bracket 20 and the base 10 can remain covered to prevent the bracket 20 from colliding with other objects when the welding machine 200 is stored or carried.

[0052] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat shrink tube tray (100) for optical fiber fusion splicing, characterized in that: The invention comprises a base (10) and a bracket (20), wherein the bracket (20) and the base (10) are hingedly connected, and a locking mechanism (30) is provided between the bracket (20) and the base (10), and the locking mechanism (30) is used to keep the bracket (20) and the base (10) at a fixed angle so that the bracket (20) can support the heat shrink tube.

2. The heat shrink tube tray (100) for optical fiber fusion splicing according to claim 1, characterized in that: The locking mechanism (30) is a damping shaft or a rotating shaft (40) with a ratchet bearing, and the bracket (20) and the base (10) are hingedly connected via the damping shaft or the rotating shaft (40) with a ratchet bearing.

3. The heat shrink tube tray (100) for optical fiber fusion splicing according to claim 2, characterized in that: The locking mechanism (30) comprises a card slot (31) and a card block (32); the card slot (31) is provided on the base (10); the card block (32) is connected to the bracket (20); when the card block (32) is inserted into the card slot (31), the bracket (20) and the base (10) are maintained at a fixed angle, so that the bracket (20) can support the heat shrink tube.

4. The heat shrink tube tray (100) for optical fiber fusion splicing according to claim 1, characterized in that: The bracket (20) is provided with a positioning groove (21) for positioning the heat shrink tube.

5. The heat shrink tube tray (100) for optical fiber fusion splicing according to claim 4, characterized in that: A ruler (22) is provided on one side of the positioning groove (21), and the extending direction of the ruler (22) is consistent with the extending direction of the positioning groove (21).

6. The heat shrink tube tray (100) for optical fiber fusion splicing according to claim 1, characterized in that: It also includes a rotating shaft (40), which is arranged at one end of the bracket (20), and the bracket (20) and the base (10) are hinged via the rotating shaft (40).

7. The heat shrink tube tray (100) for optical fiber fusion splicing according to claim 1, characterized in that: A covering mechanism (50) is also provided between the bracket (20) and the base (10), and the covering mechanism (50) is used to keep the bracket (20) and the base (10) in close contact.

8. The heat shrink tube tray (100) for optical fiber fusion splicing according to claim 7, characterized in that: The covering mechanism (50) comprises a first magnetic attraction component (51) and a second magnetic attraction component (52); the first magnetic attraction component (51) is mounted on the base (10), and the second magnetic attraction component (52) is mounted on the bracket (20); the first magnetic attraction component (51) and the second magnetic attraction component (52) are arranged opposite to each other and are magnetically attracted to each other.

9. A welding machine (200), characterized in that: It comprises a body (10a) and a heat shrink tube tray (100) for optical fiber fusion splicing according to any one of claims 1 to 8, wherein a fusion seat (11a) is arranged on the top of the body (10a), the base (10) is detachably connected to the side of the body (10a), and the bracket (20) is located on the fusion center axis of the fusion seat (11a).

10. The welding machine (200) according to claim 9, characterized in that: A compartment cover (12a) for sealing a maintenance compartment is also provided on the side of the machine body (10a), and the base (10) and the compartment cover (12a) are detachably connected.

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