Low-loss double-hole optical fiber preform for optical fiber communication

Abstract

The utility model relates to the technical field of optical fiber preforms, in particular to a low-loss double-hole optical fiber preform for optical fiber communication, which comprises an optical fiber preform, the connecting assembly is mounted at the top of the optical fiber preform, the bottom of the connecting assembly is connected with the optical fiber preform, and the top of the connecting assembly is connected with stretching equipment of the optical fiber preform; the optical fiber preform rod comprises a rod body, the limiting head is mounted at the top of the rod body, and the limiting head is connected with the connecting assembly; the plug is mounted at the bottom of the rod body; the connecting assembly has the beneficial effects that the problem that the connecting assembly slips when clamping and fixing the optical fiber preform can be avoided, and the plug is arranged at the bottom of the rod body, so that the problem that the bottom of the optical fiber preform is damaged due to collision when the optical fiber preform is taken can be avoided; meanwhile, dirt can be prevented from entering the optical fiber preform from the bottom of the optical fiber preform.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber preform rods, in particular to a low-loss double-hole optical fiber preform rod for optical fiber communication. Background Art

[0002] An optical fiber preform is a preform used to make optical fibers. When processing the optical fiber preform into an optical fiber, a drawing furnace is required to heat and draw the optical fiber. When drawing the optical fiber preform, the general optical fiber preform is easy to slip when clamped by a clamping assembly because of its smooth surface. Therefore, when the clamping assembly clamps the optical fiber preform, it is easy to slip. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a low-loss double-hole optical fiber preform for optical fiber communication.

[0004] In view of this, the utility model provides a low-loss double-hole optical fiber preform for optical fiber communication, comprising an optical fiber preform; a connecting assembly, wherein the connecting assembly is installed at the top of the optical fiber preform, the bottom of the connecting assembly is connected to the optical fiber preform, and the top of the connecting assembly is connected to the stretching equipment of the optical fiber preform; wherein the optical fiber preform comprises a rod body; a limit head, wherein the limit head is installed at the top of the rod body, and the limit head is connected to the connecting assembly; and a plug, wherein the plug is installed at the bottom of the rod body.

[0005] Through the above technical solution, when the optical fiber preform is installed in the drawing furnace, the connecting assembly is first connected to the top of the optical fiber preform, and then the connecting assembly is connected to the drawing furnace. The setting of the limit head at the top of the optical fiber preform body can prevent the connecting assembly from slipping when clamping and fixing the optical fiber preform, and the setting of the plug at the bottom of the rod body can prevent the bottom of the optical fiber preform from being damaged due to bumps when taking the optical fiber preform, and can also prevent dirt from entering the optical fiber preform from the bottom of the optical fiber preform.

[0006] Preferably, the connecting assembly includes a mounting bracket, two of which are provided, the mounting bracket being installed on the top of the rod body, and a mounting groove being symmetrically opened on an adjacent side wall of the mounting bracket; a telescopic rod, the telescopic rod being installed in the mounting groove, a spring being sleeved on the telescopic rod, and the two ends of the spring being respectively connected to the groove walls of the mounting groove; a clamping block, two of which are provided, the clamping blocks being installed on the mounting bracket, the clamping blocks abutting against the outer wall of the rod body, and the top of the clamping blocks abutting against the bottom of the limit head; a connecting plate, the connecting plate being installed on the top of the mounting bracket, the connecting plate being slidably connected to the top of the mounting bracket, and a connecting screw being provided on the connecting plate.

[0007] Preferably, the plug includes a cover body, a top of the cover body is provided with a receiving groove that matches the size of the bottom of the rod body; an insertion rod, the insertion rod is installed in the receiving groove, the insertion rod is plugged into the bottom of the rod body, and a limiting block is provided on the top of the insertion rod.

[0008] Preferably, the clamping blocks are made of heat-insulating material, and the sides of the two clamping blocks in contact with the rod body are in a semicircular arc shape.

[0009] The beneficial effects of the utility model are:

[0010] 1. By arranging a limit head on the top of the rod body, the problem of slipping of the connecting assembly when clamping and fixing the optical fiber preform rod can be avoided.

[0011] 2. The plug can be provided to prevent the bottom of the optical fiber preform from being damaged due to collision when the optical fiber preform is taken out, and can also prevent dirt from entering the optical fiber preform from the bottom of the optical fiber preform.

[0012] 3. The setting of the connection assembly facilitates the clamping of the optical fiber preform. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a three-dimensional view of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the connection assembly in the utility model;

[0017] Figure 4 It is a front view of the plug in the utility model;

[0018] Figure 5 It is a three-dimensional view of the plug in the utility model;

[0019] The example in the figure is: optical fiber preform 1, rod body 101, limit head 102, connecting assembly 2, mounting frame 21, mounting groove 22, clamping block 23, telescopic rod 24, spring 25, connecting plate 26, connecting screw 27, plug 3, cover body 31, accommodating groove 32, insertion rod 33, limit block 34. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0021] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0022] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0023] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0024] Example 1

[0025] like Figures 1 to 5 As shown, this embodiment provides a low-loss double-hole optical fiber preform for optical fiber communication, including an optical fiber preform 1; a connecting component 2, wherein the connecting component 2 is installed at the top of the optical fiber preform 1, the bottom of the connecting component 2 is connected to the optical fiber preform 1, and the top of the connecting component 2 is connected to the stretching equipment of the optical fiber preform; wherein the optical fiber preform 1 includes a rod body 101; a limit head 102, wherein the limit head 102 is installed at the top of the rod body 101, and the limit head 101 is connected to the connecting component 2; and a plug 3, wherein the plug 3 is installed at the bottom of the rod body 1.

[0026] Through the above technical solution, when the optical fiber preform is installed in the drawing furnace, the connecting assembly is first connected to the top of the optical fiber preform, and then the connecting assembly is connected to the drawing furnace. The setting of the limit head at the top of the optical fiber preform body can prevent the connecting assembly from slipping when clamping and fixing the optical fiber preform, and the setting of the plug at the bottom of the rod body can prevent the bottom of the optical fiber preform from being damaged due to bumps when taking the optical fiber preform, and can also prevent dirt from entering the optical fiber preform from the bottom of the optical fiber preform.

[0027] In this embodiment, the connecting component 2 includes a mounting frame 21, two of which are provided. The mounting frame 21 is installed at the top of the rod body 101, and a mounting groove 22 is symmetrically opened on a side wall adjacent to the mounting frame 21; a telescopic rod 24, the telescopic rod 24 is installed in the mounting groove 22, a spring 25 is sleeved on the telescopic rod 24, and the two ends of the spring 25 are respectively connected to the groove walls of the mounting groove 22; a clamping block 23, two of which are provided, the clamping block 23 is installed on the mounting frame 21, the clamping block 23 abuts against the outer wall of the rod body 101, and the top of the clamping block 23 abuts against the bottom of the limit head 102; a connecting plate 26, the connecting plate 26 is installed at the top of the mounting frame 21, the connecting plate 26 is slidably connected to the top of the mounting frame 21, and a connecting screw 27 is provided on the connecting plate 26.

[0028] Through the above technical scheme, when the connecting assembly is working, the staff pulls the two mounting frames to move away from each other at the bottom of the connecting plate, thereby increasing the distance between the two mounting frames, and then sleeves the mounting frame onto the rod body, and the rod body is clamped by the clamping block installed on the mounting frame, which facilitates the clamping of the optical fiber preform rod. When the mounting frame is pulled open, the telescopic rod installed in the mounting groove is lengthened, and the spring sleeved on the telescopic rod is also stretched accordingly. Due to the setting of the spring, when the rod body is clamped by the clamping block, the staff releases the mounting frame, and the stretched spring resets. As the spring resets, the spring can drive the two mounting frames to move closer to each other, and the telescopic rod also begins to shorten, thereby ensuring the stability of the clamping of the rod body, and the coordinated use of the clamping block and the limit head can prevent the rod body from detaching from the connecting assembly, thereby ensuring the reliability of the clamping of the optical fiber preform rod.

[0029] Example 2

[0030] like Figure 4 to Figure 5 As shown, in this embodiment, a low-loss double-hole optical fiber preform for optical fiber communication is provided. In addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features: the plug 3 includes a cover body 31, and the top of the cover body 31 is provided with a receiving groove 32 that matches the bottom size of the rod body 101; an insertion rod 33, the insertion rod 33 is installed in the receiving groove 32, the insertion rod 33 is plugged into the bottom of the rod body 101, and a limiting block 34 is provided on the top of the insertion rod 33.

[0031] Through the above technical solution, when the plug is installed on the bottom of the rod body, the bottom of the rod body is inserted into the receiving groove on the end cover, and the insertion rod installed in the receiving groove is inserted into the rod body. At the same time, the limit on the insertion rod abuts against the inner wall of the rod body, thereby preventing the plug from separating from the rod body, thereby improving the reliability of the plug.

[0032] In this embodiment, the clamping blocks 23 are made of heat-insulating material, and the sides of the two clamping blocks 23 that contact the rod body 101 are in a semicircular arc shape.

[0033] Through the above technical solution, by making the clamp block out of heat-insulating material, it is possible to avoid the problem that after the rod body is heated, the heat is transferred to the connecting component by the clamp block, thereby causing damage to the connecting component. The side of the clamp block in contact with the rod body is set to a semicircular arc shape, which facilitates the fitting of the clamp block and the rod body.

[0034] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A low-loss double-hole optical fiber preform for optical fiber communication, characterized in that: include Optical fiber preform; A connecting assembly, wherein the connecting assembly is installed on the top of the optical fiber preform, the bottom of the connecting assembly is connected to the optical fiber preform, and the top of the connecting assembly is connected to the stretching device of the optical fiber preform; Wherein, the optical fiber preform comprises rod body; A limit head, which is mounted on the top of the rod body and is connected to the connecting assembly; A plug is installed at the bottom of the rod body.

2. The low-loss double-hole optical fiber preform for optical fiber communication according to claim 1, characterized in that: The connection component includes A mounting frame, wherein two mounting frames are provided, and the mounting frame is installed on the top of the rod body, and a mounting groove is symmetrically opened on one side wall adjacent to the mounting frame; A telescopic rod, the telescopic rod is installed in the installation slot, a spring is sleeved on the telescopic rod, and two ends of the spring are respectively connected to the slot wall of the installation slot; A clamping block, wherein two clamping blocks are provided, and the clamping blocks are mounted on a mounting frame, the clamping blocks abut against the outer wall of the rod body, and the top of the clamping block abuts against the bottom of the limit head; A connecting plate is installed on the top of the mounting frame, the connecting plate is slidably connected to the top of the mounting frame, and a connecting screw is arranged on the connecting plate.

3. The low-loss double-hole optical fiber preform for optical fiber communication according to claim 1, characterized in that: The plug includes A cover body, wherein the top of the cover body is provided with a receiving groove that matches the size of the bottom of the rod body; The insert rod is installed in the accommodating groove, the insert rod is plugged into the bottom of the rod body, and a limiting block is arranged on the top of the insert rod.

4. The low-loss double-hole optical fiber preform for optical fiber communication according to claim 2, characterized in that: The clamping blocks are made of heat-insulating material, and the sides of the two clamping blocks contacting the rod body are in a semicircular arc shape.

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