Optical cable fixing clamp for track plate

Abstract

The utility model discloses an optical cable fixing clamp for a track plate, which comprises a fixing plate provided with an optical cable mounting groove and at least one cable mounting groove. An optical cable fixing clamp for clamping an optical cable is arranged in the optical cable mounting groove, at least one cable fixing clamp is arranged in the cable mounting groove, an optical cable buffer clamping assembly for adapting to different cable diameters is arranged on the optical cable fixing clamp, and a cable buffer clamping assembly for adapting to different cable diameters is arranged on the cable fixing clamp; during use, a cable and an optical cable are respectively clamped into the cable fixing clamp and the optical cable fixing clamp, and are fixed through the cable buffer clamping assembly and the optical cable buffer clamping assembly; as the cable buffer clamping assembly and the optical cable buffer clamping assembly have the yielding buffer capability, the cable buffer clamping assembly and the optical cable buffer clamping assembly can adapt to cables and optical cables of various specifications, and the diversified laying requirements of the cables are met; all parts are directly locked through the acting force in the vertical direction, and the limiting reliability can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of optical cable clamp technology, specifically to an optical cable fixing clamp for track slabs. Background Technology

[0002] When laying cables or other wires on ballastless or ballasted tracks (also known as trackbeds or track slabs) in the railway or rail transit sector, to prevent cables from lifting or detaching from the ground and causing damage or affecting train safety when trains pass, simple saddle clamps are generally fixed on the track slab to limit the position of the cables. Although these clamps can limit the swing distance of the cables to a certain extent, there is always a certain amount of play between the clamps and the cables. The vibration of trains passing by will cause the cables to vibrate or slip due to this play. This not only causes the saddle clamps to loosen but also causes the cables to wear out quickly, which is detrimental to improving train safety. Furthermore, the saddle clamps can only hold one cable at a time. When laying multiple cables, a large number of saddle clamps are required, which is not only economically inefficient but also requires a lot of installation space. Utility Model Content

[0003] To address the limitation of existing technologies in terms of the limited range of compatible cables, this utility model discloses a clamp for fixing optical cables. The clamp described in this utility model can fix a variety of cables, including optical cables and electrical cables, greatly expanding the application range of the equipment.

[0004] A fiber optic cable fixing clamp for a track slab includes a fixing plate with fastening components for fixing it to an installation position; the fixing plate has a fiber optic cable mounting groove and at least one cable mounting groove; a fiber optic cable fixing clip for clamping the fiber optic cable is provided in the fiber optic cable mounting groove, and at least one cable fixing clip is provided in the cable mounting groove; the fiber optic cable fixing clip is provided with a fiber optic cable buffer clamping component for adapting to different cable diameters, and the cable fixing clip is provided with a cable buffer clamping component for adapting to different cable diameters.

[0005] The fastening assembly locks the fixing plate to drive the optical cable fixing clip to press the optical cable, and drives the cable fixing clip to press the cable.

[0006] Optionally, the cable buffer clamping assembly includes a top buffer pad and a set of side wall buffer pads. The top buffer pad is disposed on the top inner wall of the cable fixing clip, and the side wall buffer pads are symmetrically disposed on the inner walls of the two sides of the cable fixing clip. The top buffer pad and the side wall buffer pads together form a cable clamping groove for fixing the cable.

[0007] Optionally, the sidewall buffer pad includes a first connecting piece and a second connecting piece. One end of the first connecting piece and the second connecting piece are smoothly connected to form a U-shaped structure by an arc-shaped buffer piece, and the other end of the first connecting piece and the second connecting piece are integrally connected to the sidewall of the connecting housing.

[0008] Optionally, the first connecting piece and the second connecting piece are parallel to each other and tilted toward the top buffer pad side.

[0009] Optionally, the optical cable buffer clamping assembly includes a second top buffer pad and a set of second sidewall buffer pads. The second top buffer pad is disposed on the top inner wall of the optical cable fixing card, and the second sidewall buffer pads are symmetrically disposed on the inner walls of the two sides of the optical cable fixing card.

[0010] The second top buffer pad and the second side wall buffer pad are used to form an optical cable clamping groove for fixing the optical cable.

[0011] Optionally, the optical cable fixing clips and optical cable mounting slots, the cable fixing clips and cable mounting slots, and adjacent cable fixing clips are all connected by a locking assembly.

[0012] Optionally, the locking assembly includes a locking groove and a locking strip that interlock with each other. The locking strip slides into the locking groove in the vertical direction and abuts against each other in the cable laying direction to limit movement. The cross-section of the locking groove and the locking strip is T-shaped or dovetail-shaped.

[0013] Optionally, the fixing plate is provided with connecting ear plates on both sides, and the connecting ear plates are provided with mounting holes adapted to the fastening components.

[0014] Optionally, the fastening assembly includes a chemical anchor bolt with one end pre-embedded and fixed to the track plate, the other end of the chemical anchor bolt passing through the mounting hole, and a flat washer, a spring washer, an anti-theft nut, and an anti-loosening nut fitted on that end.

[0015] Optionally, the fixing plate is made of SMC composite material, and the cable fixing clip and the optical cable fixing clip are made of nylon material.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model includes a fixing plate, on which an optical cable mounting groove and at least one cable mounting groove are provided; an optical cable fixing clip for clamping the optical cable is provided in the optical cable mounting groove, and at least one cable fixing clip is provided in the cable mounting groove. The optical cable fixing clip is provided with an optical cable buffer clamping component for adapting to different cable diameters, and the cable fixing clip is provided with a cable buffer clamping component for adapting to different cable diameters.

[0018] When the fixing clamps described in this utility model are used, the cables are respectively inserted into the respective cable fixing clamps. The cable fixing clamps and optical cable fixing clamps are fixed to the track plate by the cable buffer clamping components and optical cable buffer clamping components, respectively, to achieve stable installation of the cables and optical cables. At the same time, since the cable buffer clamping components and optical cable buffer clamping components have a certain yielding and buffering capacity, they are not only compatible with various specifications of cables and optical cables, but also meet the diverse laying requirements of cables and optical cables.

[0019] Secondly, since this utility model can fix multiple cables and optical cables with one fixing clamp, it can effectively reduce the number of clamps used in the cable laying process on the one hand, and combine multiple clamps to effectively reduce the space occupied by the clamps on the other hand, which is particularly suitable for cable laying operations in small spaces.

[0020] Furthermore, this utility model can simultaneously fix optical cables and electrical cables, which not only further expands the scope of application of the equipment; at the same time, since the diameter of the cable is much smaller than that of the cable, the cable can be laid between adjacent cables, which is conducive to further reducing the size of the clamp and realizing the laying of multiple cables in a small space.

[0021] Finally, this utility model locks the fixing plate vertically through the fastening component, and then applies a locking force to the optical cable fixing clip and the cable fixing clip in the vertical direction through the fixing plate. Therefore, from the perspective of the force direction, there is no component force along the cable axis, which ensures that the maximum force can be applied to the cable, improves the limiting effect on the cable and optical cable, and prevents them from loosening due to vibration when the train passes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the optical cable fixing clamp described in this utility model;

[0024] Figure 2 This is a schematic diagram of the cable fixing clip structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the optical cable fixing clip structure of this utility model;

[0026] Figure 4 This is an isometric drawing of the fixing plate of this utility model;

[0027] Figure 5 This is a bottom view of the fixing plate of this utility model;

[0028] Figure 6 This is an exploded view of the fastening component of this utility model.

[0029] Reference numerals: 1-Fixing plate, 2-Fastening assembly, 3-Optical cable installation groove, 4-Cable installation groove, 5-Optical cable fixing clip, 6-Cable fixing clip, 7-Optical cable buffer clamping assembly, 8-Cable buffer clamping assembly, 81-Top buffer pad, 82-Side wall buffer pad, 821-First connecting piece, 822-Second connecting piece, 823-Buffer piece, 71-Second top buffer pad, 72-Second side wall buffer pad, 9-Limiting slide groove, 10-Limiting slide bar, 11-Connecting ear plate, 12-Mounting hole, 21-Chemical anchor bolt, 22-Flat washer, 23-Spring washer, 24-Anti-theft nut, 25-Anti-loosening nut. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Implementation Method 1

[0035] This embodiment, as a basic implementation of the present invention, discloses a fiber optic cable fixing clamp, the specific structure of which is as follows: Figures 1 to 4 As shown, the system includes a fixing plate 1, which has an inverted U-shaped structure. Connecting lugs 11 are provided on both sides of the fixing plate 1 along the direction perpendicular to the cable laying. The connecting lugs 11 are integrally connected to the fixing plate 1. Mounting holes 12 are provided on the connecting lugs 11, and fastening components 2 are installed within the mounting holes 12. The fastening components 2 include chemical anchors 21. During installation, one end of the chemical anchor 21 is pre-embedded in the track plate locked at the installation position, and the other end passes through the mounting hole 12. A flat washer 22, a spring washer 23, an anti-theft nut 24, and a locknut are also fitted onto this end. The locknut effectively improves the stability of the connection, preventing loosening caused by vibrations when a train passes. The anti-theft nut 24 requires a special bolt to open, which not only further improves the stability of the connection but also effectively enhances the anti-theft function and improves the security of the cable.

[0036] The fixing plate 1 is provided with an installation groove, and a support block is integrally connected to the middle of the installation groove, thereby dividing the installation groove into mutually symmetrical cable installation grooves 4 through the support block. The optical cable installation groove 3 is set at the bottom of the support block. At the same time, multiple cable installation grooves 4 can also be divided into the installation groove as needed. The support block forms an effective structural support in the middle of the limiting groove, avoiding the reduction of the structural strength in the middle of the limiting groove due to excessive span, and improving the stability and reliability of the fixing plate 1.

[0037] The optical cable mounting groove 3 is provided with an optical cable fixing clip 5. An engaging assembly is provided between the optical cable mounting groove 3 and the optical cable fixing clip 5. The engaging assembly includes a limiting slide groove 9 and a limiting slide bar 10. Both the limiting slide groove 9 and the limiting slide bar 10 are arranged in the vertical direction. If the limiting slide bars 10 are provided on both sides of the optical cable fixing clip 5, then the limiting slide groove 9 is provided on both inner walls of the optical cable mounting groove 3. During installation, the limiting slide bar 10 on the optical cable fixing clip 5 is inserted into the limiting slide groove 9 from the vertical opening end of the fixing plate 1. At this time, the optical cable fixing clip 5 is simultaneously inserted into the optical cable mounting groove 3. The assembly of the two can be completed by pushing the optical cable fixing clip 5 completely into the optical cable mounting groove 3. The cross-section of the limiting slide groove 9 and the limiting slide bar 10 can be T-shaped or dovetail-shaped.

[0038] In the axial direction of the cable laying, the limiting groove 9 and the limiting strip 10 abut against each other, thereby achieving limiting in the axial direction, preventing the optical cable fixing clip 5 from sliding when the cable slides axially, and improving the structural stability of the whole set of equipment.

[0039] Meanwhile, this utility model can quickly install and remove the optical cable fixing clip 5 by insertion. After installation, the open end of the fixing plate 1 is sealed by the track plate, thereby realizing the 6-degree-of-freedom limitation of the optical cable fixing clip 5 and greatly improving the stability of the optical cable fixing clip 5.

[0040] The optical cable fixing clip 5 is also provided with an optical cable buffer clamping assembly 7. The optical cable buffer clamping assembly 7 includes a second top buffer pad 71 and a set of two second side wall buffer pads 72. The second top buffer pad 71 is disposed on the top inner wall of the optical cable fixing clip 5, and the second side wall buffer pads 72 are symmetrically disposed on the inner walls of the two sides of the optical cable fixing clip 5. Thus, the second top buffer pad 71 and the second side wall buffer pads 72 form an optical cable clamping groove for fixing the optical cable. When optical cables of different diameters are inserted into the optical cable clamping groove, they will cause different degrees of compression to the second top buffer pad 71 and the second side wall buffer pad 72. The above-mentioned buffer components will produce corresponding elastic relief, thereby maintaining a stable compression fixing force while adapting to different optical cables, and realizing the fixing of the optical cable.

[0041] One cable fixing clip 6 or multiple cable fixing clips 6 can be installed in the cable installation groove 4. When one cable fixing clip 6 is installed, the connection and assembly method between the cable fixing clip 6 and the cable installation groove 4 is the same as the connection and assembly method between the optical cable fixing clip 5 and the optical cable installation groove 3.

[0042] If multiple cable fixing clips 6 are provided, limit grooves 9 and limit sliders 10 are respectively provided on both sides of the cable fixing clip 6, and limit grooves 9 and limit sliders 10 are respectively provided on the two inner sidewalls of the cable mounting groove 4. Adjacent cable fixing clips 6 are connected by limit grooves 9 and limit sliders 10, and cable fixing clips 6 and cable mounting grooves 4 are connected by limit grooves 9 and limit sliders 10. At the same time, the assembly method of the cable fixing clips 6 is the same as the assembly method of the optical cable fixing clips 5. As needed, the cross-section of the limit grooves 9 and limit sliders 10 is T-shaped or dovetail-shaped.

[0043] The inner wall of the cable fixing clip 6 is also provided with a cable buffer clamping assembly 8. The cable buffer clamping assembly 8 includes a top buffer pad 81 and a set of two side wall buffer pads 82. The top buffer pad 81 is disposed on the top inner wall of the cable fixing clip 6, and the side wall buffer pads 82 are symmetrically disposed on the inner walls of the two sides of the cable fixing clip 6. The top buffer pad 81 and the side wall buffer pads 82 are used to form a cable clamping groove for fixing the cable.

[0044] The sidewall buffer pad 82 includes a first connecting piece 821 and a second connecting piece 822. One end of the first connecting piece 821 and the second connecting piece 822 are smoothly connected to each other in a U-shape by an arc-shaped buffer piece 823. The other ends of the first connecting piece 821 and the second connecting piece 822 are integrally connected to the sidewall of the connecting housing. At the same time, in order to optimize the stress structure of the sidewall buffer pad 82, the first connecting piece 821 and the second connecting piece 822 are parallel to each other and inclined towards the top buffer pad 81.

[0045] The biggest difference between the above structure and the traditional buffer pad is that the entire buffer pad box is set at an angle, so its highest point will be in a free state. Since it is not constrained, this type of buffer pad has a greater rebound. On the one hand, it can further adapt to cables with larger diameters and expand the application range of the equipment. On the other hand, the cable extrusion force it receives will also be an inclined force, so it will be decomposed into vertical and horizontal separation, realizing the decomposition of the force and helping to improve the equipment's adaptability to extrusion force.

[0046] Meanwhile, in order to improve the corrosion resistance of the entire equipment and the cable fastening ability, the fixing plate 1 is made of SMC composite material, and the cable fixing clip 6 and the optical cable fixing clip 5 are both made of nylon material. Specifically, the nylon material can be PA6, PA66 or PA12.

Claims

1. A fiber optic cable fixing clamp for track slabs, characterized in that: The device includes a fixing plate (1), on which fastening components (2) are provided for fixing it to the installation position; the fixing plate (1) is provided with an optical cable installation groove (3) and at least one cable installation groove (4); the optical cable installation groove (3) is provided with an optical cable fixing clip (5) for clamping the optical cable, the cable installation groove (4) is provided with at least one cable fixing clip (6), the optical cable fixing clip (5) is provided with an optical cable buffer clamping component (7) for adapting to different cable diameters, and the cable fixing clip (6) is provided with a cable buffer clamping component (8) for adapting to different cable diameters; The fastening assembly (2) locks the fixing plate (1) to drive the optical cable fixing clip (5) to press the optical cable and the cable fixing clip (6) to press the cable.

2. The optical cable fixing clamp for track slabs according to claim 1, characterized in that: The cable buffer clamping assembly (8) includes a top buffer pad (81) and a set of side wall buffer pads (82). The top buffer pad (81) is disposed on the top inner wall of the cable fixing clip (6), and the side wall buffer pads (82) are symmetrically disposed on the inner walls of the two sides of the cable fixing clip (6). The top buffer pad (81) and the side wall buffer pads (82) together form a cable clamping groove for fixing the cable.

3. A fiber optic cable fixing clamp for a track slab according to claim 2, characterized in that: The sidewall buffer pad (82) includes a first connecting piece (821) and a second connecting piece (822). One end of the first connecting piece (821) and the second connecting piece (822) are smoothly connected to form a U-shaped structure by an arc-shaped buffer piece (823). The other end of the first connecting piece (821) and the second connecting piece (822) are integrally connected to the sidewall of the cable fixing clip (6).

4. A fiber optic cable fixing clamp for a track slab according to claim 3, characterized in that: The first connecting piece (821) and the second connecting piece (822) are parallel to each other and tilted toward the top buffer pad (81).

5. A fiber optic cable fixing clamp for a track slab according to claim 1, characterized in that: The optical cable buffer clamping assembly (7) includes a second top buffer pad (71) and a set of second side wall buffer pads (72). The second top buffer pad (71) is disposed on the top inner wall of the optical cable fixing card (5), and the second side wall buffer pads (72) are symmetrically disposed on the inner walls of the two sides of the optical cable fixing card (5). The second top buffer pad (71) and the second side wall buffer pad (72) enclose and form an optical cable clamping groove for fixing the optical cable.

6. A fiber optic cable fixing clamp for a track slab according to claim 1, characterized in that: The optical cable fixing clip (5) and the optical cable mounting groove (3), the cable fixing clip (6) and the cable mounting groove (4), and adjacent cable fixing clips (6) are all connected by a locking assembly.

7. A fiber optic cable fixing clamp for a track slab according to claim 6, characterized in that: The locking assembly includes a locking groove (9) and a locking strip (10) that interlock with each other. The locking strip (10) slides and engages with the locking groove (9) in the vertical direction and abuts against each other in the cable laying direction. The cross-section of the locking groove (9) and the locking strip (10) is T-shaped or dovetail-shaped.

8. A fiber optic cable fixing clamp for a track slab according to claim 1, characterized in that: The fixing plate (1) is provided with connecting ear plates (11) on both sides, and the connecting ear plates (11) are provided with mounting holes (12) that are adapted to the fastening components (2).

9. A fiber optic cable fixing clamp for a track slab according to claim 8, characterized in that: The fastening assembly (2) includes a chemical anchor (21) pre-embedded and fixed to the track plate at one end; the other end of the chemical anchor (21) passes through the mounting hole (12), and is also fitted with a flat washer (22), a spring washer (23), an anti-theft nut (24) and an anti-loosening nut (25).

10. A fiber optic cable fixing clamp for a track slab according to claim 1, characterized in that: The fixing plate (1) is made of SMC composite material, and the cable fixing clip (6), the optical cable fixing clip (5), the optical cable buffer clamping assembly (7) and the cable buffer clamping assembly (8) are made of nylon material.

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