A high stability indoor optical cable

Abstract

The invention discloses a high-stability indoor optical cable applied in the field of optical cables. The optical cable is provided with tensile force transfer devices at intervals on the basis of the existing indoor optical cable, and two adjacent tensile force transfer devices are connected by tensile steel wire, so as to effectively improve the tensile resistance of the optical cable. The optical cable body is clamped by a fixed clamp pad by pressing a self-locking press key. When the self-locking press key is pressed, the expansion effect of an external expander is used to push a connecting seat to both sides, so as to facilitate the connection of the tensile steel wire and the connecting seat. Moreover, the connecting effect of the tensile steel wire is used to prevent the optical cable body between the two tensile force transfer devices from being in a stretched state. In this way, the tensile force exerted on the optical cable body is transferred by connecting two adjacent tensile force transfer devices together, so as to effectively improve the tensile resistance of the optical cable, and prevent the vertically arranged optical cable from being in a stretched state, so as to effectively improve the tensile resistance of the optical cable.

Description

Technical Field

[0001] The invention relates to the field of optical cables, and in particular to an indoor optical cable with high stability. Background Art

[0002] Indoor optical cables are optical cables laid inside buildings and are mainly used for communication equipment, computers, switches and end-user equipment inside buildings to transmit information.

[0003] Indoor optical cables are all introduced from the outdoors. After the optical cables enter the building, it is necessary to provide connections between the entrance equipment, equipment room or computer room and the communication cabinets on different floors. This is called the "vertical wiring system". At this time, the wiring optical cables are mostly located in the vertical pipes of the shafts between floors. Therefore, the optical cables need to withstand the tensile force from their own gravity. The existing indoor optical cable outer protective layer has no steel wire, so its tensile resistance is very low. Long-term use will cause damage to the inside of the optical cable, which will affect the normal use of the optical cable.

[0004] To this end, we use this technical solution to solve the problem of poor tensile strength of existing optical cables. Summary of the invention

[0005] The purpose of the present invention is to improve the indoor optical cable in the prior art, and to provide a highly stable indoor optical cable compared to the prior art. The tensile force is transferred by adding a tensile force transferor to the existing indoor optical cable, and the tensile force transferor is put on the optical cable at a certain distance, and two adjacent tensile force transferors are connected by a tensile steel wire, so as to effectively improve the tensile resistance of the optical cable. By pressing the self-locking push button, the fixed clamp pad clamps the optical cable body, so as to achieve the effect of freely installing the tensile force transferor. When the self-locking push button is pressed, the expansion effect of the external expander is used to push the connecting seat to both sides, so as to facilitate the connection of the tensile steel wire and the connecting seat. In addition, the connecting effect of the tensile steel wire is used to prevent the optical cable body between the two tensile force transferors from being stretched straight. In this way, the tensile force on the optical cable body is transferred by connecting two adjacent tensile force transferors together, thereby effectively improving the tensile resistance of the optical cable.

[0006] The vertically laid optical cables are prevented from being in a stretched state, thereby effectively improving the tensile strength of the optical cables.

[0007] Furthermore, the self-locking push button includes a push seat, and both side walls of the push seat are provided with grooves, a card block is slidably connected in the groove, and an elastic adaptive pad is fixedly connected between the card block and the groove wall, and a card slot matching the card block is provided on the side wall of the tensile force transferor. Pressing the self-locking push button is, on the one hand, to allow the fixed clamping pad to clamp the optical cable body to fix the tensile force transferor, and on the other hand, to allow the external expander to push the connecting seat to both sides to facilitate the connection between the tensile steel wire and the connecting seat. After pressing the self-locking push button, the card block is engaged with the card slot under the elastic force of the elastic adaptive pad to prevent the push seat from rebounding and causing the fixed clamping pad to lose its clamping and fixing function.

[0008] Furthermore, the external expander includes an outer membrane, and an elastic sheet is fixedly connected to the interior of the outer membrane. When the self-locking push button is pressed, the elastic sheet expands outward under the downward pressure, thereby pushing the slide plate to move the connecting seat closer to the connecting hole.

[0009] Furthermore, the elastic buffer includes a corrugated expansion tube, and a rubber net is fixedly connected between the inner walls on both sides of the corrugated expansion tube. The corrugated expansion tube and the rubber net rely on their own elastic force to allow the connecting seat to have a buffering effect. When the tensile steel wire is subjected to the tensile force, it will drive the connecting seat to squeeze the rubber buffer pad, and the rubber buffer pad can play a buffering role. At the same time, the connecting seat will pull the elastic buffer after moving. At this time, the corrugated expansion tube and the rubber net will play a buffering role after being pulled, thereby effectively improving the tensile resistance of the tensile steel wire.

[0010] Furthermore, the stretching steel wire includes a steel wire rope, one end of the steel wire rope close to the tensile force transferor is fixedly connected to a T-shaped rotating seat, and a threaded head which is threadedly connected to the connecting seat is rotatably connected to the T-shaped rotating seat. The threaded head can rotate freely on the T-shaped rotating seat, which facilitates the threaded connection between the threaded head and the connecting seat. The steel wire rope plays the role of connecting the tensile force transferor and also plays the role of resisting the tensile force, so that the tensile force originally exerted on the optical cable body is transferred to the stretching steel wire, thereby effectively improving the tensile resistance of the optical cable.

[0011] Optionally, the fixed clamping pad is an annular structure, and the side wall where the fixed clamping pad contacts the optical cable body is fixedly connected with an elastic friction layer. When the self-locking push button is pressed, the fixed clamping pad is clamped on the optical cable body, thereby fixing the tensile force transferor on the optical cable body. The elastic friction layer relies on friction force to fix the tensile force transferor on the optical cable body, and the elasticity of the friction layer can also effectively prevent the clamping force of the fixed clamping pad from being too large and damaging the optical cable body.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] (1) This scheme transfers the tensile force by adding a tensile force transferor to the existing indoor optical cable. The tensile force transferor is put on the optical cable at a certain distance and two adjacent tensile force transferors are connected by tensile steel wire, so as to effectively improve the tensile resistance of the optical cable. By pressing the self-locking push button, the fixed clamp pad clamps the optical cable body, so as to achieve the effect of installing the tensile force transferor at will. When the self-locking push button is pressed, the expansion effect of the external expander is used to push the connecting seat to both sides, so as to facilitate the connection of the tensile steel wire and the connecting seat. In addition, the connecting effect of the tensile steel wire is used to prevent the optical cable body between the two tensile force transferors from being stretched straight. In this way, the tensile force on the optical cable body is transferred by connecting two adjacent tensile force transferors together, thereby effectively improving the tensile resistance of the optical cable, and preventing the vertically arranged optical cable from being stretched straight, thereby effectively improving the tensile resistance of the optical cable.

[0014] (2) The self-locking push button includes a push seat, and both side walls of the push seat are provided with grooves, a card block is slidably connected in the groove, and an elastic adaptive pad is fixedly connected between the card block and the groove wall of the groove, and a card slot matching the card block is provided on the side wall of the tensile force transferor. Pressing the self-locking push button is to allow the fixed clamping pad to clamp the optical cable body and fix the tensile force transferor on the one hand, and to allow the external expander to push the connecting seat to both sides to facilitate the connection between the tensile steel wire and the connecting seat on the other hand. After pressing the self-locking push button, the card block is engaged with the card slot under the elastic force of the elastic adaptive pad to prevent the push seat from rebounding and causing the fixed clamping pad to lose its clamping and fixing function.

[0015] (3) The external expander includes an outer membrane, and an elastic sheet is fixedly connected to the inside of the outer membrane. When the self-locking push button is pressed, the elastic sheet expands outward under the downward pressure, thereby pushing the slide plate to make the connecting seat approach the connecting hole.

[0016] (4) The elastic buffer includes a bellows expansion tube, and a rubber net is fixedly connected between the inner walls on both sides of the bellows expansion tube. The bellows expansion tube and the rubber net rely on their own elastic force to make the connecting seat have a buffering effect. When the tensile steel wire is subjected to the tensile force, it will drive the connecting seat to squeeze the rubber buffer pad, and the rubber buffer pad can play a buffering role. At the same time, the connecting seat will pull the elastic buffer after moving. At this time, the bellows expansion tube and the rubber net will play a buffering role after being pulled, thereby effectively improving the tensile resistance of the tensile steel wire.

[0017] (5) The tensile steel wire includes a steel wire rope, one end of the steel wire rope close to the tensile force transfer device is fixedly connected to a T-shaped rotating seat, and a threaded head which is rotatably connected to the connecting seat is rotatably connected to the T-shaped rotating seat. The threaded head can rotate freely on the T-shaped rotating seat, which facilitates the threaded connection between the threaded head and the connecting seat. The steel wire rope plays the role of connecting the tensile force transfer device and also plays the role of resisting the tensile force, so that the tensile force originally exerted on the optical cable body is transferred to the tensile steel wire, thereby effectively improving the tensile resistance of the optical cable.

[0018] (6) The fixed clamping pad is an annular structure, and the side wall where the fixed clamping pad contacts the optical cable body is fixedly connected with an elastic friction layer. When the self-locking push button is pressed, the fixed clamping pad is clamped on the optical cable body, thereby fixing the tensile force transferor on the optical cable body. The elastic friction layer relies on friction to fix the tensile force transferor on the optical cable body, and the elasticity of the friction layer can also effectively prevent the clamping force of the fixed clamping pad from being too large and damaging the optical cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 It is a disassembled stereogram of the present invention;

[0021] Figure 3 A three-dimensional diagram of the self-locking push button of the present invention;

[0022] Figure 4 It is a cross-sectional structural diagram of the present invention before connection;

[0023] Figure 5 It is a cross-sectional structural diagram after connection of the present invention;

[0024] Figure 6 It is a cross-sectional view of the self-locking push button of the present invention;

[0025] Figure 7 It is a comparison diagram of the external expander of the present invention before and after deformation;

[0026] Figure 8 is a cross-sectional view of the elastic buffer of the present invention;

[0027] Fig. 9 A three-dimensional diagram of the stretched steel wire of the present invention;

[0028] Fig.10 It is a cross-sectional view of the local structure of the stretched steel wire of the present invention.

[0029] Description of the numbers in the figure:

[0030] 1 Optical cable body, 2 Tensile force transferor, 201 Connecting hole, 3 Self-locking push button, 301 Press seat, 302 Block, 303 Elastic adaptive pad, 4 External expander, 401 Outer membrane, 402 Elastic sheet, 5 Fixed clamp pad, 6 Slide plate, 7 Elastic buffer, 701 Corrugated telescopic tube, 702 Rubber net, 8 Connecting seat, 9 Rubber buffer pad, 10 Tensile steel wire, 1001 Steel wire rope, 1002 Threaded head, 1003 T-shaped rotating seat. DETAILED DESCRIPTION

[0031] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] A high stability indoor optical cable, see Figure 1 , 2 , 3 and Figure 6 , including an optical cable body 1, a plurality of tensile force transfer devices 2 are sleeved on the outer wall of the optical cable body 1, and the side walls of the tensile force transfer devices 2 are provided with a plurality of symmetrically distributed connection holes 201, the side walls of the tensile force transfer devices 2 are clamped with a plurality of symmetrically distributed self-locking pressing keys 3, the self-locking pressing keys 3 include a pressing seat 301, and the side walls of the pressing seat 301 are provided with grooves, a card block 302 is slidably connected in the groove, and an elastic adaptive pad 303 (preferably made of rubber material, can also be made according to Other materials can be selected according to actual needs). A card slot matching the card block 302 is provided on the side wall of the tensile force transfer device 2. Pressing the self-locking push button 3 is to allow the fixed clamping pad 5 to clamp the optical cable body 1 to fix the tensile force transfer device 2. On the other hand, it is to allow the external expander 4 to push the connecting seat 8 to both sides to facilitate the connection between the tensile steel wire 10 and the connecting seat 8. After pressing the self-locking push button 3, the card block 302 is engaged with the card slot under the elastic force of the elastic adaptive pad 303 to prevent the pressing seat 301 from rebounding and causing the fixed clamping pad 5 to lose its clamping and fixing function.

[0034] See also Figure 7 , and one end of the self-locking push button 3 located inside the tensile force transfer device 2 is fixedly connected to an external expander 4, the external expander 4 includes an outer membrane 401, and the inner part of the outer membrane 401 is fixedly connected to an elastic sheet 402 (preferably a polyurethane elastic material, and other materials can also be selected according to actual needs). When the self-locking push button 3 is pressed, the elastic sheet 402 expands outward under the downward pressure, thereby pushing the slide plate 6 to make the connecting seat 8 approach the connecting hole 201;

[0035] See also Figure 4 ,5 and Figure 8 , and the side wall of the slide plate 6 away from the expander 4 is fixedly connected with an elastic buffer 7, the elastic buffer 7 includes a bellows expansion tube 701, and a rubber net 702 is fixedly connected between the inner walls on both sides of the bellows expansion tube 701. The bellows expansion tube 701 and the rubber net 702 rely on their own elastic force to allow the connecting seat 8 to have a buffering effect. When the tensile steel wire 10 is subjected to the tensile force, it will drive the connecting seat 8 to squeeze the rubber buffer pad 9, and the rubber buffer pad 9 can play a buffering role. At the same time, the connecting seat 8 will pull the elastic buffer 7 after moving. At this time, the bellows expansion tube 701 and the rubber net 702 play a buffering role after being pulled, thereby effectively improving the tensile resistance of the tensile steel wire 10. The side wall of the elastic buffer 7 away from the slide plate 6 is fixedly connected with the connecting seat 8, and the inner wall of the tensile force transferor 2 close to the connecting hole 201 is fixedly connected with the rubber buffer pad 9;

[0036] See also Fig. 9 , 10 A plurality of tensile steel wires 10 are connected between two adjacent tensile force transferers 2. The tensile steel wire 10 includes a steel wire rope 1001. One end of the steel wire rope 1001 close to the tensile force transferer 2 is fixedly connected to a T-shaped rotating seat 1003, and a threaded head 1002 threadedly connected to the connecting seat 8 is rotatably connected to the T-shaped rotating seat 1003. The threaded head 1002 can rotate freely on the T-shaped rotating seat 1003, which facilitates the threaded connection between the threaded head 1002 and the connecting seat 8. The steel wire rope 1001 plays the role of connecting the tensile force transferer 2 and also plays the role of resisting the tensile force, so that the tensile force originally exerted on the optical cable body 1 is transferred to the tensile steel wire 10, thereby effectively improving the tensile resistance of the optical cable, and the tensile steel wire 10 is threadedly connected to the connecting seat 8.

[0037] Embodiment 2:

[0038] Based on Example 1, please refer to Figure 3 The end of the external expander 4 away from the self-locking push button 3 is fixedly connected with a fixed clamping pad 5, the fixed clamping pad 5 is a ring structure, and the side wall of the fixed clamping pad 5 in contact with the optical cable body 1 is fixedly connected with an elastic friction layer. When the self-locking push button 3 is pressed, the fixed clamping pad 5 will be clamped on the optical cable body 1, so that the tensile force transferor 2 is fixed on the optical cable body 1. The elastic friction layer relies on friction to fix the tensile force transferor 2 on the optical cable body 1, and the elasticity of the friction layer can also effectively prevent the clamping force of the fixed clamping pad 5 from being too large and damaging the optical cable body 1. The fixed clamping pad 5 penetrates to the outside of the tensile force transferor 2 and contacts with the optical cable body 1. The inner walls of the tensile force transferor 2 on both sides of the external expander 4 are slidably connected with slides 6.

[0039] The working principle of this scheme is as follows: first, when laying the optical cable in the shaft, the tensile force transfer device 2 is first put on the optical cable body 1. The number of tensile force transfer devices 2 and the distance between two adjacent tensile force transfer devices 2 are freely adjusted according to the length of the optical cable body 1. After the tensile force transfer device 2 is put on the optical cable body 1, the self-locking pressing keys 3 on both sides are pressed. After the self-locking pressing keys 3 are pressed, the fixed clamping pad 5 is pushed onto the optical cable body 1. After the clamping block 302 is aligned with the clamping groove on the side wall of the tensile force transfer device 2, the elastic adaptive pad 303 pops the clamping block 302 into the clamping groove to fix the self-locking pressing key 3, so that the fixed clamping pad 5 can fix the optical cable body 1. Clamp to fix the tensile force transferor 2 on the optical cable body 1, press the self-locking push button 3 while the expander 4 is pressed down to expand and deform outward, the expansion of the expander 4 makes the connecting seat 8 move closer to the connecting hole 201, and finally the T-shaped rotating seat 1003 is passed through the connecting hole 201 and threadedly connected to the connecting seat 8. It should be noted that the length of the optical cable body 1 between the two tensile force transferors 2 is greater than the distance between the two tensile force transferors 2, so that the tensile force originally exerted on the optical cable body 1 is transferred to the tensile force transferor 2 and the tensile steel wire 10, thereby effectively improving the tensile resistance of the optical cable body 1.

[0040] The above description is only the best implementation mode adopted by the present invention in combination with current practical needs, but the protection scope of the present invention is not limited thereto.

Claims

1. A high-stability indoor optical cable, comprising an optical cable body (1), characterized in that: A plurality of tensile force transfer devices (2) are sleeved on the outer wall of the optical cable body (1), and the side walls on both sides of the tensile force transfer device (2) are provided with a plurality of symmetrically distributed connection holes (201), the side walls of the tensile force transfer device (2) are clamped with a plurality of symmetrically distributed self-locking push keys (3), and one end of the self-locking push key (3) located inside the tensile force transfer device (2) is fixedly connected to an external expander (4), the self-locking push key (3) comprises a pressing seat (301), and the side walls on both sides of the pressing seat (301) are provided with grooves, a clamping block (302) is slidably connected in the groove, and an elastic adaptive pad (303) is fixedly connected between the clamping block (302) and the groove wall of the groove, the side walls of the tensile force transfer device (2) are provided with a clamping groove matching the clamping block (302), and the external expander (4) comprises an outer coating (401), and an elastic sheet (402) is fixedly connected inside the outer coating (401); The end of the external expander (4) away from the self-locking push button (3) is fixedly connected to a fixed clamping pad (5), and the fixed clamping pad (5) penetrates to the outside of the tensile force transferor (2) and contacts the optical cable body (1); the inner walls of the tensile force transferor (2) located on both sides of the external expander (4) are slidably connected to slide plates (6), and the side wall of the slide plate (6) away from the external expander (4) is fixedly connected to an elastic buffer (7), and the side wall of the elastic buffer (7) away from the slide plate (6) is fixedly connected to a connecting seat (8); the inner wall of the tensile force transferor (2) near the connecting hole (201) is fixedly connected to a rubber buffer pad (9), and a plurality of tensile steel wires (10) are connected between two adjacent tensile force transferors (2), and the tensile steel wires (10) are threadedly connected to the connecting seat (8).

2. A high-stability indoor optical cable according to claim 1, characterized in that: The elastic buffer (7) comprises a bellows expansion tube (701), and a rubber net (702) is fixedly connected between inner walls on both sides of the bellows expansion tube (701).

3. A high-stability indoor optical cable according to claim 1, characterized in that: The tensile steel wire (10) comprises a steel wire rope (1001), one end of the steel wire rope (1001) close to the tensile force transfer device (2) is fixedly connected to a T-shaped rotating seat (1003), and the T-shaped rotating seat (1003) is rotatably connected to a threaded head (1002) threadedly connected to a connecting seat (8).

4. The high-stability indoor optical cable according to claim 1, characterized in that: The fixed clamping pad (5) is an annular structure, and a side wall of the fixed clamping pad (5) in contact with the optical cable body (1) is fixedly connected with an elastic friction layer.

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