A fiber optic cable wall bushing

Abstract

The utility model discloses a kind of optical fiber cable wall protection sleeve, including the positioning plate of installation in one side of wall, its lateral wall is equipped with several groups of mounting holes, the inside of several groups of mounting holes is fixedly embedded with protective sleeve body, the inner chamber of several groups of protective sleeve body is symmetrically provided with two groups of clamping blocks, the lateral wall of the one side of positioning plate is symmetrically fixedly connected with two groups of mounting plates, the distance between two groups of clamping blocks can be flexibly adjusted by adjusting assembly, different core number, different outer diameter optical fiber cable can be stably clamped, without different specification cable separately stocking, reduce stocking cost and selection difficulty, adapt to multiple scene wiring needs of family, industry, data center etc., flexible protection ring is directly set in optical fiber cable outer wall, can buffer wall hole edge burr friction in the process of wall, masonry extrusion, avoid optical fiber sheath breakage, while cooperating with the clamping of clamping block, cable pulling can be reduced to cause core wire fracture, effectively reduce signal attenuation risk.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication auxiliary equipment technology, specifically to a protective sleeve for optical fiber cable passing through walls. Background Technology

[0002] With the widespread adoption of fiber optic communication technology in homes, industries, data centers, and other scenarios, cross-regional laying of fiber optic cables has become commonplace. As a crucial link connecting indoor and outdoor spaces and different functional areas, the safety of fiber optic cabling directly impacts the stability and lifespan of the communication system. The core transmission medium of fiber optic cables is glass fiber, which is highly brittle and has weak resistance to mechanical damage. During the wall penetration process, factors such as burrs at the edges of wall holes, friction from bricks and stones, external pressure, as well as rainwater, dust, corrosive gases in the outdoor environment, and condensation caused by temperature differences between indoors and outdoors, can all cause damage to the fiber optic sheath, breakage of the core wire, or signal attenuation. Fiber optic cable wall penetration protection sleeves are a core component for ensuring cabling safety.

[0003] Existing fiber optic cable wall penetration protection sleeves are mainly designed based on single protection needs. Their structure is mostly an integrated straight tube, and the materials are mainly PE, PVC, and ordinary alloys. Most existing protective sleeves have fixed product specifications and can only be used for cables of a specific diameter. When dealing with fiber optic cables with different core counts and outer diameters, they need to be stocked separately, resulting in poor versatility. Therefore, we need to propose a fiber optic cable wall penetration protection sleeve. Utility Model Content

[0004] The purpose of this utility model is to provide a fiber optic cable wall-penetrating protective sleeve. By setting an adjustable component with adjustable clamping block distance and a flexible protective ring for sleeved cable, it achieves the effect of adapting to different specifications of fiber optic cables, reducing inventory costs and selection difficulty, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A fiber optic cable wall-penetrating protective sleeve includes: a positioning plate installed on one side of a wall, with several sets of mounting holes on its side wall; a protective sleeve body is fixedly embedded inside each of the several sets of mounting holes; two sets of clamping blocks are symmetrically arranged in the inner cavity of each of the several sets of protective sleeve bodies; two sets of mounting plates are symmetrically fixedly connected to one side wall of the positioning plate; each of the two sets of mounting plates is provided with an adjustment component for adjusting the distance between the two sets of clamping blocks to clamp fiber optic cables of different thicknesses; and a flexible protective ring is provided at the inlet end of each of the several sets of protective sleeve bodies, the flexible protective ring being sleeved on the outer wall of the fiber optic cable.

[0006] Preferably, the adjusting component includes a screw sleeve, which is fixedly embedded inside the mounting plate. A screw rod is threadedly connected to the inside of the screw sleeve. One end of the screw rod passes through the screw sleeve and is rotatably connected to a movable plate. Several sets of connecting rods are fixedly connected to one side wall of the movable plate. One end of each set of connecting rods passes through several sets of protective sleeves and is fixedly connected to one side of the clamping block.

[0007] Preferably, it also includes two sets of sliding rods, both sets of sliding rods are slidably inserted into the interior of the mounting plate, and one end of each set of sliding rods passes through the mounting plate and is fixedly connected to one side of the movable plate.

[0008] Preferably, a knob is fixedly connected to the end of the screw away from the movable plate, and the outer wall of the knob is provided with anti-slip texture.

[0009] Preferably, the connecting rod is slidably connected to the protective sleeve.

[0010] Preferably, a fixing ring is fixedly connected to one side of the flexible protective ring, the inner wall of the fixing ring is provided with an internal thread, and the outer wall of one end of the protective sleeve is provided with an external thread that matches the internal thread. The fixing ring is threadedly connected to one end of the protective sleeve.

[0011] Preferably, the outlet end of the protective sleeve is provided with an elastic clamp that fits tightly against the outer wall of the optical fiber cable. The elastic clamp includes a connecting part, which is fixedly connected to the outlet end of the protective sleeve. One end of the connecting part is fixedly connected to several sets of elastic plates in a ring array.

[0012] Preferably, the connecting part and the several sets of elastic plates are arranged in a frustum shape.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention allows for flexible adjustment of the distance between two sets of clamping blocks via an adjustable component, enabling stable clamping of fiber optic cables with different core counts and outer diameters. It eliminates the need for separate stocking of cables of different specifications, reducing stocking costs and selection complexity. It is suitable for cabling needs in various scenarios such as homes, industries, and data centers. The flexible protective ring is directly fitted onto the outer wall of the fiber optic cable, buffering the friction from burrs and brick pressure at the edges of wall holes during wall penetration, preventing damage to the fiber optic sheath. Simultaneously, the clamping and fixing with the clamping blocks reduces core breakage caused by cable pulling, effectively lowering the risk of signal attenuation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the axial side structure of this utility model; Figure 3 This is a schematic diagram of the structure of the clamping block and adjusting assembly of this utility model; Figure 4 This is a schematic diagram of the structure of the protective sleeve, flexible protective ring, and elastic clamp of this utility model.

[0015] In the diagram: 1. Positioning plate; 2. External thread; 3. Mounting hole; 4. Protective sleeve; 5. Clamping block; 6. Mounting plate; 7. Adjustment assembly; 701. Screw sleeve; 702. Screw; 703. Movable plate; 704. Connecting rod; 705. Slide rod; 706. Knob; 707. Anti-slip texture; 8. Flexible protective ring; 9. Fixing ring; 10. Internal thread; 11. Elastic chuck; 1101. Connecting part; 1102. Elastic plate. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 This utility model provides a technical solution: A fiber optic cable wall-penetrating protective sleeve includes: a positioning plate 1 installed on one side of the wall, with several sets of mounting holes 3 on its side wall, a protective sleeve body 4 fixedly embedded inside each of the several sets of mounting holes 3, two sets of clamping blocks 5 symmetrically arranged in the inner cavity of each of the several sets of protective sleeve bodies 4, two sets of mounting plates 6 symmetrically fixedly connected to one side wall of the positioning plate 1, and adjusting components 7 respectively provided on the two sets of mounting plates 6 for adjusting the distance between the two sets of clamping blocks 5 to clamp fiber optic cables of different thicknesses, and a flexible protective ring 8 provided at the inlet end of each of the several sets of protective sleeve bodies 4, the flexible protective ring 8 being sleeved on the outer wall of the fiber optic cable.

[0018] By setting adjustable-spacing clamps 5 and flexible protective rings 8 for compatible cables, the system achieves compatibility with cables of different specifications and initially buffers friction when passing through walls, providing basic protection and compatibility for the cables. The stable installation of the positioning plate 1 and the layout of multiple protective sleeves 4 can also meet the needs of multiple cables passing through walls at the same time, improving the neatness of the wiring.

[0019] The adjusting assembly 7 includes a screw sleeve 701, which is fixedly embedded inside the mounting plate 6. A screw rod 702 is threadedly connected to the inside of the screw sleeve 701. One end of the screw rod 702 passes through the screw sleeve 701 and is rotatably connected to a movable plate 703. Several sets of connecting rods 704 are fixedly connected to one side wall of the movable plate 703. One end of each set of connecting rods 704 passes through several sets of protective sleeves 4 and is fixedly connected to one side of the clamping block 5. By setting the threaded engagement of the screw sleeve 701, screw rod 702, and the linked movable plate 703 and connecting rods 704, the adjusting force is precisely transmitted, and the clamping block 5 moves synchronously to clamp the cable, ensuring a stable and controllable adjustment process. The self-locking property of the threaded drive also prevents the clamping block 5 from loosening due to vibration during use, ensuring reliable fixation.

[0020] It also includes two sets of slide rods 705, both of which are slidably inserted into the interior of the mounting plate 6, and one end of each set of slide rods 705 passes through the mounting plate 6 and is fixedly connected to one side of the movable plate 703. By setting slide rods 705 fixed to the movable plate 703, the movement direction of the movable plate 703 is guided, preventing it from deviating and causing uneven force on the clamping block 5, thereby improving the operational stability of the adjustment component 7.

[0021] A knob 706 is fixedly connected to the end of the screw 702 away from the movable plate 703. The outer wall of the knob 706 is provided with anti-slip texture 707. By setting the knob 706 with anti-slip texture 707, the friction between the hand and the knob 706 is increased, making it easier for construction personnel to quickly and effortlessly adjust the screw 702, improving on-site installation efficiency, and allowing for easy adjustment even when hands are dusty or gloves are worn.

[0022] The connecting rod 704 is slidably connected to the protective sleeve 4. By setting the sliding engagement structure between the connecting rod 704 and the protective sleeve 4, the wear during relative movement of the two is reduced, the smooth adjustment of the clamping block 5 is ensured, and the service life of the components is extended.

[0023] A retaining ring 9 is fixedly connected to one side of the flexible protective ring 8. The inner wall of the retaining ring 9 has an internal thread 10, and the outer wall of one end of the protective sleeve 4 has an external thread 2 that matches the internal thread 10. The retaining ring 9 is threadedly connected to one end of the protective sleeve 4. By setting the retaining ring 9 with the internal thread 10 to cooperate with the external thread 2 of the protective sleeve 4, the flexible protective ring 8 can be quickly disassembled and securely fixed. When the flexible protective ring 8 ages, it can be disassembled and replaced separately, reducing maintenance costs.

[0024] The cable outlet end of the protective sleeve 4 is provided with an elastic clamp 11 that fits tightly against the outer wall of the optical fiber cable. The elastic clamp 11 includes a connecting part 1101, which is fixedly connected to the cable outlet end of the protective sleeve 4. One end of the connecting part 1101 is fixedly connected to several sets of elastic plates 1102 in a ring array. By setting the elastic clamp 11 composed of the connecting part 1101 and the elastic plates 1102, the deformation of the elastic plates 1102 is used to tightly fit cables of different outer diameters, achieving the effect of secondary fixation of the cable outlet end. The flexible contact of the elastic plates 1102 can also avoid squeezing damage to the cable sheath.

[0025] The connecting part 1101 and several sets of elastic plates 1102 are arranged in a frustum shape. By setting the frustum-shaped elastic clamp structure, the cable can be smoothly guided through and the elastic plates can adaptively adjust the fit according to the outer diameter of the cable, thus improving the ease of assembly.

[0026] Working Principle: During construction, the device is first fixed to one side of the wall penetration hole using expansion bolts and other fasteners through the mounting holes 3 on the positioning plate 1, aligning the axis of the protective sleeve 4 with the hole to ensure a smooth cable penetration path. Then, the fiber optic cable is inserted through the center of the flexible protective ring 8, passing through the inside of the protective sleeve 4 and the elastic clamp 11. During this process, the flexible protective ring 8 directly wraps around the outer wall of the cable, initially isolating the cable from contact friction between the burrs at the edge of the wall hole and the cable. Next, the operator rotates the knob 706, causing the screw 702 to rotate within the screw sleeve 701. The screw 702 pushes the movable plate 703 to move smoothly along the guide direction of the slide rod 705. The movable plate 703, through the connecting rod 704, simultaneously moves the clamping blocks 5 closer to the cable until the two sets of clamping blocks 5 clamp the cable. The self-locking property of the threaded drive maintains the fixed state of the clamping blocks 5, preventing the cable from swaying within the protective sleeve 4.

[0027] After the cable is inserted, the frustoconical elastic plate 1102 of the elastic clamp 11 adheres tightly to the outer wall of the cable due to its own elasticity, thus providing auxiliary fixation for the cable exit end. Simultaneously, the fixing ring 9 is tightened to the external thread 2 of the protective sleeve 4 via the internal thread 10, ensuring the flexible protective ring 8 is stable and tightly connected to the sleeve. Throughout the process, the adjusting component 7 adapts to cables of different specifications. The flexible protective ring 8 and the elastic clamp 11 form dual protection for both the cable entry and exit ends, while the positioning plate 1 and the protective sleeve 4 construct a stable protective channel for the cable passing through the wall, comprehensively reducing the risk of cable damage.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fiber optic cable wall-penetrating protective sleeve, characterized in that, include: The positioning plate (1) installed on one side of the wall has several sets of mounting holes (3) on its side wall. Each set of mounting holes (3) is fixedly fitted with a protective sleeve (4). Each set of protective sleeves (4) has two sets of clamping blocks (5) symmetrically arranged in their inner cavities. Two sets of mounting plates (6) are symmetrically fixedly connected to one side wall of the positioning plate (1). Each set of mounting plates (6) is provided with an adjustment component (7) for adjusting the distance between the two sets of clamping blocks (5) to clamp optical fiber cables of different thicknesses. Each set of protective sleeves (4) has a flexible protective ring (8) at its inlet end. The flexible protective ring (8) is fitted onto the outer wall of the optical fiber cable.

2. The fiber optic cable wall penetration protection sleeve according to claim 1, characterized in that: The adjustment component (7) includes a screw sleeve (701), which is fixedly embedded inside the mounting plate (6). The screw sleeve (701) is threadedly connected to a screw rod (702). One end of the screw rod (702) passes through the screw sleeve (701) and is rotatably connected to a movable plate (703). Several sets of connecting rods (704) are fixedly connected to one side wall of the movable plate (703). One end of each set of connecting rods (704) passes through several sets of protective sleeves (4) and is fixedly connected to one side of the clamping block (5).

3. The fiber optic cable wall penetration protection sleeve according to claim 2, characterized in that: It also includes two sets of slide rods (705), both sets of slide rods (705) are slidably inserted into the interior of the mounting plate (6), and one end of each set of slide rods (705) passes through the mounting plate (6) and is fixedly connected to one side of the movable plate (703).

4. The fiber optic cable wall penetration protection sleeve according to claim 3, characterized in that: A knob (706) is fixedly connected to one end of the screw (702) away from the movable plate (703), and the outer wall of the knob (706) is provided with anti-slip texture (707).

5. A fiber optic cable wall-penetrating protective sleeve according to claim 4, characterized in that: The connecting rod (704) is slidably connected to the protective sleeve (4).

6. The fiber optic cable wall penetration protection sleeve according to claim 1, characterized in that: A fixing ring (9) is fixedly connected to one side of the flexible protective ring (8). An internal thread (10) is provided on the inner wall of the fixing ring (9). An external thread (2) that matches the internal thread (10) is provided on the outer wall of one end of the protective sleeve (4). The fixing ring (9) is threadedly connected to one end of the protective sleeve (4).

7. The fiber optic cable wall penetration protection sleeve according to claim 1, characterized in that: The protective sleeve (4) has an elastic clamp (11) that fits tightly against the outer wall of the optical fiber cable at the outlet end. The elastic clamp (11) includes a connecting part (1101), which is fixedly connected to the outlet end of the protective sleeve (4). One end of the connecting part (1101) is fixedly connected to several sets of elastic plates (1102) in a ring array.

8. The fiber optic cable wall penetration protection sleeve according to claim 7, characterized in that: The connecting part (1101) and several sets of elastic plates (1102) are arranged in a frustum shape.

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