Optical fiber fixing and protecting mechanism of optical cable cross connecting cabinet

Abstract

The invention provides an optical fiber fixing and protecting mechanism of an optical cable cross connecting cabinet. The optical fiber fixing and protecting mechanism mainly comprises a mounting plate, a first clamping and fixing part, a sliding block, a second clamping and fixing part and an elastic piece. A plurality of sliding grooves are formed in the mounting plate, the first clamping and fixing part is fixed to the mounting plate, the sliding blocks are arranged in the sliding grooves in a sliding fit mode, the second clamping and fixing part is arranged on the sliding blocks, and the elastic piece is connected with the mounting plate and the second clamping and fixing part. The inner side end of the access optical fiber is clamped and fixed to the first clamping and fixing part, the outer side end is fixed to the second clamping and fixing part, and the optical fiber between the two parts is of a bent arc-shaped structure. When the optical fiber is subjected to pulling force, the second clamping fixing part can overcome the elastic force of the elastic piece to slide along the sliding groove, the optical fiber is slowly straightened, and the buffering and receding effects are achieved. The device is compact in structure and easy and convenient to operate, the optical fiber can be effectively fixed, the optical fiber can be prevented from being pulled and damaged, and the stability and reliability of an optical fiber communication network are improved.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber communication, and in particular to an optical fiber fixing and protecting mechanism of an optical cross-connect box. Background Art

[0002] In the fiber-optic communication network, the optical cross-connect box (optical fiber junction box) is an important connection and distribution node for the optical fiber line, and the design of the internal optical fiber fixing and protection mechanism is crucial. Traditional optical fiber fixing methods mostly use simple clamps or binding tapes to directly fix the optical fiber in the optical cross-connect box. Although this method is easy to operate, it has many shortcomings in practical applications. On the one hand, the fixed optical fiber lacks sufficient buffering and retreat space. When the optical fiber is subjected to external pulling force, it is easy to cause damage or breakage of the optical fiber due to stress concentration, affecting the optical fiber transmission performance and network stability. On the other hand, the traditional fixing method is cumbersome to operate during optical fiber access and maintenance, and it is not convenient to quickly and accurately locate and fix the optical fiber, which reduces work efficiency.

[0003] Therefore, there is an urgent need for an optical fiber fixing and protection mechanism that can not only effectively fix the optical fiber but also provide the necessary buffer and retreat space for the optical fiber, so as to meet the high requirements of the optical fiber communication network for the stability and reliability of the optical fiber connection. Summary of the invention

[0004] The object of the present invention is to provide an optical fiber fixing and protection mechanism for an optical cross-connect box, which is used to fix the optical fiber and provide necessary buffer and retreat space for the optical fiber to protect the optical fiber.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide an optical fiber fixing and protection mechanism for an optical cross-connect box, the optical fiber fixing and protection mechanism for the optical cross-connect box comprising: A mounting plate, the mounting plate is fixed in the optical cross-connection box, and a plurality of slide grooves are provided on the mounting plate; A first clamping and fixing portion, wherein the first clamping and fixing portion is disposed on the mounting plate; A slider, the slider is slidably fitted in the slide groove; A second clamping and fixing portion, wherein the second clamping and fixing portion is disposed on the slider; An elastic member, two ends of which are respectively fixed to the mounting plate and the second clamping and fixing portion; The inner end of the access optical fiber is clamped and fixed on the first clamping and fixing part, and the outer end of the access optical fiber is fixed on the second clamping and fixing part. The access optical fiber between the first clamping and fixing part and the second clamping and fixing part is a curved arc structure.

[0006] In one embodiment, the first clamping and fixing portion has the same structure as the second clamping and fixing portion, and the first clamping and fixing portion includes: A fixing block, wherein a V-shaped groove which is wider at the top and narrower at the bottom is formed in the middle of the fixing block; A rotating shaft, the rotating shaft is rotatably disposed in the V-shaped groove of the fixing block, and the axis of the rotating shaft is perpendicular to the plate surface of the mounting plate; A clamping rod, wherein the clamping rod is rotatably fixed on the fixed block via the rotating shaft, and the cross-section of the clamping rod is wedge-shaped, the thickness of the clamping rod near the inner end of the access optical fiber is greater than the thickness near the outer end of the access optical fiber, and the access optical fiber is clamped and fixed between the two clamping rods.

[0007] In one embodiment, a plurality of arcuate grooves are arranged on the clamping surface of the clamping rod, and the radius of the arcuate grooves decreases from top to bottom, and the access optical fiber is clamped and fixed in the arcuate grooves.

[0008] In one embodiment, a plurality of protrusions are arranged in the arc-shaped groove.

[0009] In one embodiment, the elastic member is a spring, one end of the spring is fixed to the first clamping and fixing portion, and the other end of the spring is fixed to the second clamping and fixing portion.

[0010] In one embodiment, the elastic member includes two wavy spring pieces symmetrically arranged in the slide groove, and the access optical fiber is located between the two wavy spring pieces. When the access optical fiber is subjected to external tensile stress, the slider slides along the slide groove and compresses the wavy spring pieces, so that the two wavy spring pieces are deformed and clamp the access optical fiber in the middle.

[0011] In one embodiment, the outer surface of the first clamping and fixing portion is provided with a fluorescent identification layer for quickly identifying the routing information of different optical fibers under low light conditions.

[0012] In one embodiment, threaded holes are provided on both sides of the mounting plate for easy installation.

[0013] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: The optical fiber fixing and protection mechanism of the optical cross-connection box provided by the embodiment of the present invention is that the first clamping and fixing part and the second clamping and fixing part slidingly matched in the slide groove are arranged on the mounting plate, and the inner end and the outer end of the access optical fiber are clamped and fixed on the two clamping and fixing parts respectively, so as to form a stable fixing structure, and effectively prevent the shaking and displacement of the optical fiber in the optical cross-connection box. And the second clamping and fixing part is connected to the mounting plate by an elastic member, so that when the access optical fiber is subjected to an outward pulling force, the second clamping and fixing part can overcome the elastic force of the elastic member and slide along the slide groove direction, thereby slowly straightening the curved arc optical fiber between the first clamping and fixing part and the second clamping and fixing part. This design provides the necessary buffer and retreat space for the optical fiber, and effectively avoids the damage or breakage of the optical fiber due to the external pulling force. The optical fiber fixing and protection mechanism of the present invention has a simple structure and is easy to operate. It only needs to install the mounting plate into the optical cross-connection box, and then the inner end and the outer end of the access optical fiber are clamped into the first clamping and fixing part and the second clamping and fixing part respectively to achieve rapid fixation, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the structure of the optical fiber fixing and protection mechanism of the optical cross-connect box provided in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of an access optical fiber fixed on a first clamping and fixing portion and a second clamping and fixing portion provided in an embodiment of the present invention; Figure 3 A schematic structural diagram of a first clamping and fixing portion provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a first clamping and fixing portion provided in an embodiment of the present invention after being fixedly connected to an optical fiber; Figure 5 A schematic structural diagram of an optical fiber fixing and protection mechanism of an optical cross-connect box provided in another embodiment of the present invention.

[0016] The respective reference numerals are as follows: 1. Mounting plate; 2. First clamping and fixing part; 3. Sliding block; 4. Second clamping and fixing part; 6. Access optical fiber; 11. Sliding groove; 12. Threaded hole; 21. Fixing block; 22. Rotating shaft; 23. Clamping rod; 51. Spring; 52. Wave-shaped spring piece; 231. Arc groove; 232. Bump. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figures 1 to 4 The embodiment of the present application provides an optical fiber fixing and protection mechanism for an optical cross-box, including a mounting plate 1, a first clamping and fixing portion 2, a slider 3, a second clamping and fixing portion 4, and an elastic member. Among them, the mounting plate 1 is fixed in the optical cross-box, and a plurality of slide grooves 11 are provided on the mounting plate 1. The first clamping and fixing portion 2 is arranged on the mounting plate 1. The slider 3 slides in the slide groove 11. The second clamping and fixing portion 4 is arranged on the slider 3. The two ends of the elastic member are respectively fixed on the mounting plate 1 and the second clamping and fixing portion 4. The inner end of the access optical fiber 6 is clamped and fixed on the first clamping and fixing portion 2, and the outer end of the access optical fiber 6 is fixed on the second clamping and fixing portion 4. The access optical fiber 6 between the first clamping and fixing portion 2 and the second clamping and fixing portion 4 is in a curved arc structure.

[0022] In this embodiment, a plurality of slide grooves 11 are provided on the mounting plate 1, and a first clamping and fixing portion 2 is fixedly provided on the mounting plate 1, and a second clamping and fixing portion 4 is slidably provided in the slide groove 11 through a slider 3, and an elastic member is provided between the mounting plate 1 and the second clamping and fixing portion 4. When the access optical fiber 6 is installed, the inner end of the access optical fiber 6 (i.e., the inner end close to the optical fiber bare core) is clamped and fixed on the first clamping and fixing portion 2, and the outer end of the access optical fiber 6 is clamped and fixed on the second clamping and fixing portion 4. Since the access optical fiber 6 between the first clamping and fixing portion 2 and the second clamping and fixing portion 4 is in a curved arc structure (the degree of bending of the access optical fiber 6 meets the minimum bending radius), when the access optical fiber 6 is subjected to an outward pulling force, the pulling force on the access optical fiber 6 can be transmitted to the second clamping and fixing portion 4, thereby overcoming the elastic force of the elastic member, so that the slider 3 and the second clamping and fixing portion 4 slide along the direction of the slide groove 11, so that the access optical fiber 6 between the first clamping and fixing portion 2 and the second clamping and fixing portion 4 is slowly straightened, thereby playing a buffering and yielding role. Figure 1 As shown, the rightmost part is a schematic diagram of the access optical fiber 6 after being subjected to an external pulling force, and the remaining part on the left is a schematic diagram of the access optical fiber 6 when it is not subjected to an external pulling force. Thus, while achieving the fixing of the access optical fiber 6, the access optical fiber 6 is also given a certain buffering yield, so as to avoid the access optical fiber 6 after being fixed from being damaged or even broken due to the external pulling force, thereby achieving the fixing of the access optical fiber 6 while protecting the access optical fiber 6.

[0023] like Figure 2-4 As shown, in one embodiment, the first clamping and fixing part 2 has the same structure as the second clamping and fixing part 4, and the first clamping and fixing part 2 includes a fixed block 21, a rotating shaft 22, and a clamping rod 23. Among them, a V-shaped groove with a wide top and a narrow bottom is opened in the middle of the fixed block 21. The rotating shaft 22 is rotatably arranged in the V-shaped groove of the fixed block 21, and the axis of the rotating shaft 22 is perpendicular to the plate surface of the mounting plate 1. The clamping rod 23 is rotatably fixed to the fixed block 21 through the rotating shaft 22, and the cross section of the clamping rod 23 is wedge-shaped, and the thickness of the clamping rod 23 near the inner end of the access optical fiber 6 is greater than the thickness near the outer end of the access optical fiber 6, and the access optical fiber 6 is clamped and fixed between the two clamping rods 23.

[0024] When installing the access optical fiber 6, since the clamping rod 23 is rotatably set on both sides of the V-groove of the fixing block 21 through the rotating shaft 22, the space between the two clamping rods 23 also presents a V-shaped structure that is wide at the top and narrow at the bottom. When the access optical fiber 6 needs to be fixed, it is only necessary to press the access optical fiber 6 downward between the two clamping rods 23, and the access optical fiber 6 can be clamped and fixed by using the clamping rods 23 on both sides, which greatly simplifies the complexity of installing and fixing the access optical fiber 6, so that the fixed installation of the access optical fiber 6 can be completed by hand without the assistance of other tools.

[0025] Furthermore, since the space between the two clamping rods 23 also presents a V-shaped structure that is wide at the top and narrow at the bottom, the device can be suitable for the installation and fixation of access optical fibers 6 of different models and thicknesses.

[0026] Finally, since the clamping rod 23 is rotatably disposed on both sides of the V-shaped groove of the fixing block 21 through the rotating shaft 22, and the cross section of the clamping rod 23 is wedge-shaped, the thickness of the clamping rod 23 near the inner end of the access optical fiber 6 is greater than the thickness near the outer end of the access optical fiber 6, so that when the access optical fiber 6 is subjected to the outer pulling force (such as Figure 4 In the figure, the tension from top to bottom along the axis of the access optical fiber 6 is shown in the figure. At this time, the access optical fiber 6 will produce a displacement in the direction of the pulling force (the displacement is very small). Since the access optical fiber 6 is in close contact with the clamping rod 23, when the access optical fiber 6 is displaced, the friction between the two will cause the clamping rod 23 on the left to rotate clockwise around the rotating shaft 22 by a certain angle (the clamping rod 23 on the right rotates counterclockwise around the rotating shaft 22), so that the thicker side of the two clamping rods 23 rotates toward the middle position, thereby reducing the width between the two clamping rods 23, further pressing and fixing the access optical fiber 6 in the middle, and increasing the clamping force of the clamping rod 23 for clamping and fixing the access optical fiber 6. The greater the external pulling force, the greater the clamping force of the clamping rod 23 on the access optical fiber 6, so that the clamping rod 23 can automatically adjust the clamping force on the access optical fiber 6 according to the external pulling force on the access optical fiber 6, thereby improving the stability of the installation and fixation of the access optical fiber 6.

[0027] In order to further improve the stability of the clamping rod 23 in clamping and fixing the access optical fiber 6, in one embodiment, a plurality of arc grooves 231 are provided on the clamping surface of the clamping rod 23, and the radius of the arc grooves 231 decreases from top to bottom, and the access optical fiber 6 is clamped and fixed in the arc grooves 231. When installing the access optical fiber 6, it is only necessary to press the access optical fiber 6 into the corresponding arc groove 231 according to the size of the access optical fiber 6, and the arc groove 231 can be used to increase the contact area (i.e., the effective clamping area) between the clamping rod 23 and the access optical fiber 6, and at the same time, the clamping force is dispersed while improving the clamping stability, so as to avoid the access optical fiber 6 being clamped by the clamping rod 23 due to stress concentration.

[0028] Optionally, in order to further improve the stability of the clamping rod 23 in clamping and fixing the access optical fiber 6, in one embodiment, a plurality of protrusions 232 are provided in the arc groove 231. The protrusions 232 can greatly increase the friction between the clamping rod 23 and the access optical fiber 6, thereby improving the stability of clamping and fixing.

[0029] like Figure 1In one embodiment, the elastic member is a spring 51, one end of the spring 51 is fixed on the first clamping and fixing part 2, and the other end of the spring 51 is fixed on the second clamping and fixing part 4. When the access optical fiber 6 is subjected to the pulling force from the outside, the spring 51 is deformed and elongated so that the elastic force acting on the second clamping and fixing part 4 gradually increases until the elastic force and the pulling force are balanced and offset. In this process, the spring 51 is stretched and lengthened, so that the slider 3 and the second clamping and fixing part 4 slide along the slide groove 11, and the access optical fiber 6 is gradually straightened, so that the access optical fiber 6 on the lower side of the first clamping and fixing part 2 moves a distance in the direction of the pulling force, so as to reduce the pulling force acting on the access optical fiber 6, play a buffering and yielding role, and protect the access optical fiber 6. The access optical fiber 6 on the upper side of the first clamping and fixing part 2 always remains stationary under the fixing action of the first clamping and fixing part 2, and will not be affected by the pulling force, thereby ensuring the safety of the fusion section of the access optical fiber 6 on the upper side of the first clamping and fixing part 2.

[0030] like Figure 5 As shown, in one embodiment, the elastic member includes two wavy spring pieces 52 symmetrically arranged in the slide groove 11, and the access optical fiber 6 is located between the two wavy spring pieces 52. When the access optical fiber 6 is subjected to external tensile stress, the slider 3 slides along the slide groove 11 and compresses the wavy spring piece 52, so that the two wavy spring pieces 52 are deformed and clamped to fix the access optical fiber 6 in the middle.

[0031] By using two wavy spring sheets 52 as elastic members, and symmetrically arranging the two wavy spring sheets 52 in the slide groove 11, and making the access optical fiber 6 located between the two wavy spring sheets 52, the two wavy spring sheets 52 can realize the function of the above-mentioned spring 51 (balancing the external pulling force, and being able to deform so that the slider 3 and the second clamping fixing portion 4 can slide along the slide groove 11, thereby playing a buffering and yielding role to protect the access optical fiber 6). When the access optical fiber 6 is subjected to external pulling force, the wavy spring sheets 52 on both sides of the access optical fiber 6 are compressed and deformed, such as Figure 5 As shown in the rightmost spring sheet, the spring sheets on both sides will squeeze toward the middle, thereby clamping and fixing the access optical fiber 6 in the middle, giving the access optical fiber 6 an additional clamping and fixing force in addition to the first clamping and fixing portion 2 / the second clamping and fixing portion 4, further improving the performance of the access optical fiber 6 in resisting external pulling force and improving stability. In addition, when the wavy spring sheet 52 is compressed and deformed, it can generate multiple clamping and fixing points with the access optical fiber 6 to disperse the clamping and fixing force and avoid damage to the access optical fiber 6 due to concentrated clamping and fixing force.

[0032] In one embodiment, a fluorescent marking layer is provided on the outer surface of the first clamping and fixing portion 2 for quickly identifying the routing information of different optical fibers under low light conditions, so as to facilitate quick identification of different optical fibers in an optical cross-connect box with relatively dim light.

[0033] In one embodiment, threaded holes 12 are provided on both sides of the mounting plate 1 for easy installation. The threaded holes 12 are provided to facilitate the installation and fixing of the mounting plate 1 in the optical cross-connection box.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical fiber fixing and protection mechanism for an optical cross-connect box, characterized in that: The optical fiber fixing and protection mechanism of the optical cross-connect box includes: A mounting plate, the mounting plate is fixed in the optical cross-connection box, and a plurality of slide grooves are provided on the mounting plate; A first clamping and fixing portion, wherein the first clamping and fixing portion is disposed on the mounting plate; A slider, the slider is slidably fitted in the slide groove; A second clamping and fixing portion, wherein the second clamping and fixing portion is disposed on the slider; An elastic member, two ends of which are respectively fixed to the mounting plate and the second clamping and fixing portion; The inner end of the access optical fiber is clamped and fixed on the first clamping and fixing part, and the outer end of the access optical fiber is fixed on the second clamping and fixing part. The access optical fiber between the first clamping and fixing part and the second clamping and fixing part is a curved arc structure.

2. The optical fiber fixing and protection mechanism of an optical cross-connect box according to claim 1, characterized in that: The first clamping and fixing portion has the same structure as the second clamping and fixing portion, and the first clamping and fixing portion includes: A fixing block, wherein a V-shaped groove which is wider at the top and narrower at the bottom is formed in the middle of the fixing block; A rotating shaft, the rotating shaft is rotatably disposed in the V-shaped groove of the fixing block, and the axis of the rotating shaft is perpendicular to the plate surface of the mounting plate; A clamping rod, wherein the clamping rod is rotatably fixed on the fixed block via the rotating shaft, and the cross-section of the clamping rod is wedge-shaped, the thickness of the clamping rod near the inner end of the access optical fiber is greater than the thickness near the outer end of the access optical fiber, and the access optical fiber is clamped and fixed between the two clamping rods.

3. The optical fiber fixing and protection mechanism of an optical cross-connect box according to claim 2, characterized in that: A plurality of arc grooves are arranged on the clamping surface of the clamping rod, and the radius of the arc grooves decreases from top to bottom, and the access optical fiber is clamped and fixed in the arc grooves.

4. The optical fiber fixing and protection mechanism of an optical cross-connect box according to claim 3, characterized in that: A plurality of convex points are arranged in the arc groove.

5. The optical fiber fixing and protection mechanism of an optical cross-connect box according to claim 1, characterized in that: The elastic member is a spring, one end of the spring is fixed to the first clamping and fixing portion, and the other end of the spring is fixed to the second clamping and fixing portion.

6. The optical fiber fixing and protection mechanism of an optical cross-connect box according to claim 1, characterized in that: The elastic member includes two wavy spring pieces symmetrically arranged in the slide groove, and the access optical fiber is located between the two wavy spring pieces. When the access optical fiber is subjected to external tensile stress, the slider slides along the slide groove and compresses the wavy spring pieces, so that the two wavy spring pieces are deformed and clamp the access optical fiber in the middle.

7. The optical fiber fixing and protection mechanism of an optical cross-connect box according to claim 1, characterized in that: The outer surface of the first clamping and fixing portion is provided with a fluorescent identification layer for quickly identifying the routing information of different optical fibers under low light conditions.

8. The optical fiber fixing and protection mechanism of an optical cross-connect box according to claim 1, characterized in that: The two sides of the mounting plate are provided with threaded holes for easy installation.

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