Optical fiber for all-optical wireless intercom system

Abstract

The utility model relates to optical fiber technical field discloses the optical fiber of all-optical wireless intercom system, including the shell, the inner wall rotation of shell is connected and is penetrated and has the pivot, the outer wall fixed connection of pivot has hand wheel, ratchet wheel and reel, the inner wall rotation of shell is connected with ratchet pawl, the outer wall of reel is equipped with the optical fiber body, the inner wall rotation of shell has the volute spring and shuttle screw rod, the volute spring is installed in the outer wall of pivot, the outer wall of pivot and shuttle screw rod all fixed connection has synchronous wheel, the outer wall of two synchronous wheels is equipped with synchronous belt, the outer wall of shuttle screw rod is connected with the guide sleeve of screw thread, the outer wall of optical fiber body is provided with support subassembly. In the utility model, through the collaborative operation of hand wheel, volute spring, ratchet pawl, shuttle screw rod etc.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical fiber, especially optical fiber of full optical wireless intercom system. BACKGROUND

[0002] Full optical wireless intercom system is widely used in emergency rescue, large-scale event security, mine operation and other scenes due to its advantages of low delay, high bandwidth and strong anti-interference capability. The system transmits optical signals through optical fiber and realizes wireless interaction of voice and data through optical-wireless conversion. Therefore, as the core carrier of signal transmission, the performance of optical fiber directly determines the stability and reliability of system communication.

[0003] The existing full optical wireless intercom system optical fiber mostly adopts traditional structure, and the length adjustment depends on manual winding or unwinding. In actual operation, the operator needs to coil the excess optical fiber on the spool, and then uncoil it one by one when using. The length redundant optical fiber is directly exposed to the open air environment, which is easy to be damaged externally and also easy to form entanglement with other lines, which is not only not beautiful but also affects the service life of the optical fiber itself. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides an optical fiber of full optical wireless intercom system, aiming at improving the problem that the optical fiber used in the existing full optical wireless intercom system relies on manual winding and unwinding and the excess optical fiber is exposed to the open air environment, which is easy to be damaged externally and affects the service life and transmission efficiency of the optical fiber.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: the optical fiber of full optical wireless intercom system, including the shell, the inner wall rotationally connected and penetrating of the shell is connected with the rotating shaft, the outer wall of the rotating shaft is fixedly connected with the hand wheel, the ratchet wheel and the winding reel, the inner wall rotationally connected of the shell is the pawl, the outer wall of the winding reel is sleeved with the optical fiber body, the inner wall rotationally connected of the shell is the coil spring and the reciprocating screw rod, the coil spring is installed on the outer wall of the rotating shaft, the outer wall of the rotating shaft and the reciprocating screw rod is fixedly connected with the synchronous wheel, the outer wall of two synchronous wheels is sleeved with the synchronous belt, the outer wall of the reciprocating screw rod is threadedly connected with the guide sleeve, the outer wall of the optical fiber body is provided with the support assembly.

[0006] Through the above technical scheme: the shell provides protection for the internal components and the optical fiber, the winding reel is driven by the hand wheel to manually unwind, the ratchet wheel and pawl are used for real-time self-locking, the coil spring spring force is used to realize automatic winding, the reciprocating screw rod is driven by the synchronous wheel to rotate, the guide sleeve is driven to reciprocate, the uniform wiring of the optical fiber on the winding reel is realized, and the safety of the optical fiber in the daily use process is ensured.

[0007] As a further description of the above technical scheme:

[0008] Preferably, the support assembly comprises a plurality of sleeves, the plurality of sleeves are slidably connected to the outer wall of the optical fiber body, the opposite side of two sleeves is provided with a protective net, and the inner wall of the sleeve is fixedly connected with a plurality of pulleys.

[0009] Through the above technical scheme: through the plurality of sleeves slidably connected to the outer wall of the optical fiber body, the plurality of pulleys fixedly connected to the inner wall of the sleeve, and the protective net installed on the opposite side of the two sleeves, the effective protection of the bending part of the optical fiber is realized, the optical fiber is supported by the protective net, the bending radius is limited, and the transmission stability is ensured.

[0010] As a further description of the above technical scheme:

[0011] Preferably, the inside of the optical fiber body contains a core, the core is arranged at the innermost part of the optical fiber body, and the outer wall of the core is sequentially provided with a cladding layer, a coating layer, a buffer layer and an armor layer.

[0012] Through the above technical scheme: through the multi-layer filling and design inside the optical fiber, the physical damage such as extrusion and wear of the optical fiber is prevented, the multi-layer structure cooperates, the transmission performance and mechanical performance of the optical fiber are improved, and the service life is prolonged.

[0013] As a further description of the above technical scheme:

[0014] Preferably, the inner wall of the shell is fixedly connected with a baffle, the outer wall of the baffle is provided with a positioning spring, one end of the positioning spring is fixedly connected to the outer wall of the baffle, the other end of the positioning spring is fixedly connected to the outer wall of the pawl, and the outer walls of the ratchet wheel and the pawl are slidably connected and engaged.

[0015] Through the above technical scheme: the pawl is abutted and supported by the connection of the baffle and the spring, the ratchet wheel is engaged by the pawl, and the self-locking stability is ensured.

[0016] As a further description of the above technical scheme:

[0017] Preferably, the top end of the pawl is fixedly connected with a lever, the outer wall of the shell is provided with a lever slot, and the outer wall of the lever is slidably connected to the inner wall of the lever slot.

[0018] Through the above technical scheme: the disengagement of the pawl and the ratchet wheel is driven by the sliding of the lever in the lever slot, and the automatic take-up function is realized.

[0019] As a further description of the above technical scheme:

[0020] Preferably, the optical fiber body is slidingly connected to the inner wall of the guide sleeve, one of the guide sleeves is fixedly connected and penetrates the outer wall of the shell, a sliding groove is formed on one side of the outer wall of the shell, one of the guide sleeves is slidingly connected to the inner wall of the sliding groove, and the inner wall of the guide sleeve is provided with a brush pad.

[0021] Through the above technical scheme: the fiber is guided and protected by the guide sleeve, and the fiber is uniformly laid while being automatically cleaned by the brush pad.

[0022] Further description of the above technical scheme:

[0023] Preferably, the protective net is arranged on the outer wall of the optical fiber body.

[0024] Through the above technical scheme: the outer wall of the optical fiber is additionally protected by the protective net, the optical fiber at the bending part is supported, the bending angle is limited, and breakage is prevented.

[0025] Further description of the above technical scheme:

[0026] Preferably, the sleeve ring is slidingly connected to the outer wall of the armored layer, a plurality of guide rails are formed on the outer wall of the armored layer, and the pulley is slidingly connected to the inner wall of the guide rail.

[0027] Through the above technical scheme: the sliding of the sleeve ring is limited and supported by the guide rail formed on the armored layer, and the sleeve ring can be stably sleeved on the optical fiber to support the bending part.

[0028] The utility model has the advantages of the following beneficial effects:

[0029] 1. In the utility model, through the cooperative operation of the hand wheel, the coil spring, the ratchet wheel and the pawl, and the reciprocating screw, automatic winding and uniform arrangement of the optical fiber are realized, the optical fiber is prevented from being damaged by being exposed to the external environment due to excessive length, and the transmission stability is affected.

[0030] 2. In the utility model, guide rails are formed on the outermost armored layer of the optical fiber, the sleeve ring slides along the guide rails of the armored layer, the protective net provides flexible support when the optical fiber is bent, signal attenuation or breakage caused by excessive bending is prevented, and the service life of the optical fiber is further prolonged. DETAILED DESCRIPTION

[0031] Figure 1 The utility model discloses a main view of the optical fiber of the full-optical wireless intercom system.

[0032] Figure 2 The utility model discloses a side view of the optical fiber of the full-optical wireless intercom system.

[0033] Figure 3The shell part of the optical fiber of the all-optical wireless intercom system Figure 2 The enlarged view of A of the optical fiber of the all-optical wireless intercom system

[0034] Figure 4 The shell part of the optical fiber of the all-optical wireless intercom system

[0035] Figure 5 The shell internal structure of the optical fiber of the all-optical wireless intercom system

[0036] Figure 6 The shell internal structure of the optical fiber of the all-optical wireless intercom system

[0037] Figure 7 The support assembly of the optical fiber of the all-optical wireless intercom system

[0038] Figure 8 The shell internal structure of the optical fiber of the all-optical wireless intercom system

[0039] Figure 9 The shell internal structure of the optical fiber of the all-optical wireless intercom system

[0040] Legend:

[0041] 1, shell; 2, rotating shaft; 3, hand wheel; 4, ratchet wheel; 5, pawl; 6, baffle; 7, positioning spring; 8, push rod; 9, reel; 10, optical fiber body; 11, coil spring; 12, reciprocating screw; 13, synchronous wheel; 14, synchronous belt; 15, guide sleeve; 16, brush pad; 17, support assembly; 1701, collar; 1702, protective net; 1703, pulley; 18, fiber core; 19, cladding layer; 20, coating layer; 21, buffer layer; 22, armored layer; 23, guide rail. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the specification of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0043] Reference is made to Figure 1 , Figure 5 and Figure 6The utility model provides an embodiment: full -wireless intercom system's optical fiber, including shell 1, the inner wall rotation connection of shell 1 and the penetration of shaft 2, the outer wall fixed connection of shaft 2 has hand wheel 3, ratchet wheel 4 and reel 9, the inner wall rotation connection of shell 1 has ratchet pawl 5, the outer wall of reel 9 is equipped with optical fiber body 10, the inner wall rotation connection of shell 1 has coil spring 11 and reciprocating lead screw 12, coil spring 11 is installed in the outer wall of shaft 2, the outer wall of shaft 2 and reciprocating lead screw 12 all are fixedly connected with synchronous wheel 13, the outer wall of two synchronous wheels 13 is equipped with synchronous belt 14, the outer wall of reciprocating lead screw 12 is connected with guide sleeve 15 with screw thread, the outer wall of optical fiber body 10 is provided with support assembly 17,

[0044] Specifically, the shell 1 provides support and protection for the internal components. Except for the necessary optical fiber body 10 that extends out, the unused optical fiber body 10 is wound on the reel 9 inside the shell 1, which is relatively isolated from the outside world, preventing damage and entanglement with other lines. The hand wheel 3 is manually rotated to control the pay-off of the reel 9, and the automatic take-up is realized through the elastic force of the coil spring 11. The rotation of the shaft 2 is driven by rotating the hand wheel 3, causing the reel 9 to rotate synchronously, releasing the optical fiber body 10. The ratchet wheel 4 and the ratchet pawl 5 are engaged to form real-time self-locking, preventing accidental retraction. The rotation of the shaft 2 is transmitted to the reciprocating lead screw 12 through the synchronous wheel 13 and the synchronous belt 14. The guide sleeve 15 is driven to reciprocate by the reciprocating lead screw 12, achieving the effect of automatic wiring.

[0045] Referring to Figure 7 , Figure 8 and Figure 9 , the support assembly 17 includes a plurality of sleeve rings 1701, each of which is slidably connected to the outer wall of the optical fiber body 10. Two sleeve rings 1701 have a protective net 1702 installed on the opposite side. The inner wall of the sleeve ring 1701 is fixedly connected to a plurality of pulleys 1703. The protective net 1702 is sleeved on the outer wall of the optical fiber body 10. The sleeve ring 1701 is slidably connected to the outer wall of the armored layer 22. The outer wall of the armored layer 22 is provided with a plurality of guide rails 23. The pulleys 1703 are slidably connected to the inner wall of the guide rails 23.

[0046] Specifically, when the optical fiber body 10 is bent, the operator slides the sleeve ring 1701 along the guide rail 23 to the bending position. The sleeve ring 1701 rolls in the guide rail 23 through the pulley 1703, reducing the friction resistance while ensuring that it does not fall off. The protective net 1702 relies on elasticity to support the optical fiber, limit the bending radius, and prevent excessive bending from causing breakage, ensuring signal transmission stability.

[0047] Referring to Figure 8 and Figure 9The inside of the optical fiber body 10 contains a fiber core 18, which is arranged at the innermost part of the optical fiber body 10, and the outer wall of the fiber core 18 is sequentially provided with a cladding layer 19, a coating layer 20, a buffer layer 21 and an armored layer 22;

[0048] Specifically, the fiber core 18 is a single-mode optical fiber core 18, which is made of high-purity silica doped with a small amount of germanium to improve the refractive index and reduce material dispersion and attenuation. A pure silica cladding layer 19 is arranged around the fiber core 18 to form a total reflection interface, ensuring efficient transmission of optical signals in the fiber core 18. Two coating layers 20 are wrapped outside the cladding layer 19, the inner layer is a low-modulus ultraviolet-cured acrylic resin, which provides cushioning, and the outer layer is a high-modulus polyurethane acrylate, which enhances mechanical protection and reduces the impact of micro-bending loss on transmission performance. The buffer layer 21 is made of aramid fiber braid, which provides good flexibility and tensile strength, buffers external mechanical stress, and prevents damage to the fiber core 18. The armored layer 22 is made of stainless steel belt longitudinal armor, which is treated by embossing to enhance the compression resistance and resist external damage such as rock extrusion and rat gnawing, while providing support rails 23 for the installation of the collar 1701.

[0049] Referring to Figure 1 and Figure 4 , the inner wall of the shell 1 is fixedly connected with a baffle 6, and the outer wall of the baffle 6 is provided with a positioning spring 7, one end of the positioning spring 7 is fixedly connected to the outer wall of the baffle 6, and the other end of the positioning spring 7 is fixedly connected to the outer wall of the pawl 5. The outer walls of the ratchet wheel 4 and the pawl 5 are slidably connected and engaged with each other. The top end of the pawl 5 is fixedly connected with a lever 8, and the outer wall of the shell 1 is provided with a lever slot, and the outer wall of the lever 8 is slidably connected to the inner wall of the lever slot.

[0050] Specifically, during the process of manually rotating the hand wheel 3 to drive the rotation of the shaft 2 for paying out the optical fiber body 10, the ratchet wheel 4 fixedly connected to the outer wall of the shaft 2 will be slidably connected and engaged with the outer wall of the pawl 5 in real time, forming a self-locking mechanism to prevent the shaft 2 from reversing after the hand is released, thereby ensuring that the length of the optical fiber body 10 paid out will not change. When it is necessary to release the locking for winding up the optical fiber body 10, the lever 8 is actuated to slide along the lever slot, thereby driving the pawl 5 to disengage from the engagement with the ratchet wheel 4. The release of the elastic force of the coil spring 11 drives the reverse rotation, thereby driving the reel 9 to rotate in the opposite direction to automatically wind up the optical fiber body 10.

[0051] Referring to Figure 1 , Figure 2 and Figure 3 , the optical fiber body 10 is slidably connected to the inner wall of the guide sleeve 15, one of which is fixedly connected to and penetrates the outer wall of the shell 1. The outer wall of the shell 1 is provided with a sliding slot on one side, and one of the guide sleeves 15 is slidably connected to the inner wall of the sliding slot. The inner wall of the guide sleeve 15 is provided with a brush pad 16.

[0052] Specifically, the left guide sleeve 15 is fixed on the outer wall of the shell 1, and one end of the optical fiber body 10 is fixed and wound on the winding disc 9 as positioning. The other guide sleeve 15 is slidingly connected in the sliding groove on the right outer wall of the shell 1, and drives the optical fiber body 10 to be wound on the winding disc 9 uniformly when winding, avoiding local accumulation. Each guide sleeve 15 is embedded with a brush pad 16 to automatically clean the surface of the optical fiber body 10 and prevent scratches on the surface when winding.

[0053] Working principle: The optical fiber body 10 of the optical fiber is composed of a core 18, a cladding layer 19, a coating layer 20, a buffer layer 21 and an armor layer 22 from inside to outside. A plurality of guide rails 23 are symmetrically arranged on the outer wall of the armor layer 22, and a plurality of sleeve rings 1701 are slidingly arranged on the outer wall of the armor layer 22. A plurality of pulleys 1703 are fixedly connected to the inner wall of each sleeve ring 1701, and the shape of the pulley 1703 corresponds to the shape of the guide rail 23. The pulley 1703 slidingly abuts in the guide rail 23. A protective net 1702 is arranged between every two sleeve rings 1701, and the protective net 1702 is sleeved on the outer wall of the optical fiber body 10. When the optical fiber body 10 needs to be bent to adapt to different installation lines, the sleeve ring 1701 and the protective net 1702 are manually slid to the bending position. The toughness of the protective net 1702 forms protection and support for the optical fiber body 10 at the bending position, preventing excessive bending and breakage from affecting transmission performance.

[0054] The middle segment of the optical fiber body 10 is wound on the winding disc 9 and hidden in the shell 1, and the two ends are respectively extended out through the guide sleeves 15 installed on the left and right outer walls of the shell 1. When the length of the optical fiber body 10 needs to be extended, the hand wheel 3 at the top end of the shell 1 needs to be manually rotated to drive the rotating shaft 2 to rotate, and the winding disc 9 inside and the coil spring 11 at the bottom end rotate synchronously. The coil spring 11 gradually contracts, and at the same time, the winding force of the winding disc 9 on the optical fiber body 10 gradually loosens, so that the optical fiber body 10 can be smoothly pulled out from both ends of the shell 1 to extend the length. The sliding and engagement of the ratchet 4 and the pawl 5 fixedly connected to the rotating shaft 2 form real-time self-locking to fix the length of the optical fiber body 10 extending out. The optical fiber body 10 that is not used will continue to be wound on the winding disc 9 and be protected by the shell 1 in real time, avoiding damage from the external environment and causing line entanglement.

[0055] When it is needed to wind up the optical fiber body 10, the dial lever 8 needs to be manually dialed to drive the pawl 5 to compress the positioning spring 7 and rotate, to release the clamping of the ratchet 4, through the stress of the coil spring 11, the rotating shaft 2 is reversely rotated, and then the reel 9 is synchronously rotated, so that the optical fiber body 10 at both ends is wound into the shell 1 by the reel 9, and when the rotating shaft 2 rotates, the rotation of the rotating shaft 2 is conducted to the reciprocating screw 12 through the synchronous wheel 13 and the synchronous belt 14, so that the reciprocating screw 12 is synchronously rotated, and then the guide sleeve 15 is driven to reciprocate along the reciprocating screw 12 through the threaded connection, and the optical fiber body 10 passing through the guide sleeve 15 is synchronously slid, so that the optical fiber body 10 is uniformly wound and distributed on the outer wall of the reel 9 when being wound, to prevent the optical fiber body 10 from being blocked when being wound inside, and when the optical fiber body 10 passes through the guide sleeve 15, the brush pad 16 mounted on the inner wall of the guide sleeve 15 abuts against the outer wall, to clean the dust attached on the outer wall and prevent the optical fiber body 10 from touching the edge of the guide sleeve 15 to cause surface scratch.

[0056] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An optical fiber for an all-optical wireless intercom system, including a housing (1), characterized in that: The inner wall of the outer shell (1) is rotatably connected to and passes through a rotating shaft (2). The outer wall of the rotating shaft (2) is fixedly connected to a handwheel (3), a ratchet (4), and a winding reel (9). The inner wall of the outer shell (1) is rotatably connected to a pawl (5). The outer wall of the winding reel (9) is fitted with an optical fiber body (10). The inner wall of the outer shell (1) is rotatably connected to a coil spring (11) and a reciprocating screw (12). The coil spring (11) is installed on the outer wall of the rotating shaft (2). The outer walls of the rotating shaft (2) and the reciprocating screw (12) are both fixedly connected to a synchronous wheel (13). The outer walls of the two synchronous wheels (13) are fitted with a synchronous belt (14). The outer wall of the reciprocating screw (12) is threadedly connected to a guide sleeve (15). The outer wall of the optical fiber body (10) is provided with a support assembly (17).

2. The optical fiber of the all-optical wireless intercom system according to claim 1, characterized in that: The support assembly (17) includes multiple collars (1701), which are slidably connected to the outer wall of the optical fiber body (10). A protective net (1702) is installed on the opposite side of two collars (1701), and multiple pulleys (1703) are fixedly connected to the inner wall of the collars (1701).

3. The optical fiber of the all-optical wireless intercom system according to claim 2, characterized in that: The fiber body (10) contains a fiber core (18) inside. The fiber core (18) is located at the innermost part of the fiber body (10). The outer wall of the fiber core (18) is provided with a cladding (19), a coating layer (20), a buffer layer (21), and an armor layer (22) in sequence.

4. The optical fiber of the all-optical wireless intercom system according to claim 1, characterized in that: The inner wall of the outer shell (1) is fixedly connected to a baffle (6), and the outer wall of the baffle (6) is provided with a positioning spring (7). One end of the positioning spring (7) is fixedly connected to the outer wall of the baffle (6), and the other end of the positioning spring (7) is fixedly connected to the outer wall of the pawl (5). The outer walls of the ratchet (4) and the pawl (5) are slidably connected and engaged with each other.

5. The optical fiber of the all-optical wireless intercom system according to claim 4, characterized in that: The top of the pawl (5) is fixedly connected to a lever (8), and the outer wall of the outer shell (1) has a sliding groove that extends through it. The outer wall of the lever (8) is slidably connected to the inner wall of the sliding groove.

6. The optical fiber of the all-optical wireless intercom system according to claim 1, characterized in that: The optical fiber body (10) is slidably connected to the inner wall of the guide sleeve (15), one of the guide sleeves (15) is fixedly connected to and passes through the outer wall of the outer shell (1), a sliding groove is provided on one side of the outer wall of the outer shell (1), one of the guide sleeves (15) is slidably connected to the inner wall of the sliding groove, and a brush pad (16) is installed on the inner wall of the guide sleeve (15).

7. The optical fiber of the all-optical wireless intercom system according to claim 2, characterized in that: The protective net (1702) is fitted onto the outer wall of the optical fiber body (10).

8. The optical fiber of the all-optical wireless intercom system according to claim 3, characterized in that: The collar (1701) is slidably connected to the outer wall of the armor layer (22), and the outer wall of the armor layer (22) is provided with multiple guide rails (23), and the pulley (1703) is slidably connected to the inner wall of the guide rails (23).

Images