Pre-twisted wire strain fitting for optical cable

Abstract

The utility model relates to the technical field of optical cable installation, in particular to a pre-twisted wire strain fitting for an optical cable, which comprises a base and a wire twisting mechanism, the wire twisting mechanism comprises a fixed frame, a threaded rod, an installation seat, a fixed assembly, a fixed ring, two pre-twisted wires and a winding assembly, the two ends of the fixed frame are respectively connected with the two ends of the base in a sliding manner and penetrate through the base, and the threaded rod is arranged on the installation seat. One end of the threaded rod is rotationally connected with the base, the threaded rod is in threaded connection with the fixing frame and located below the base, the mounting base is fixedly connected with the base and located in the fixing frame, the fixing assembly is arranged below the fixing frame, the fixing ring is fixedly connected with one end of the base, and one ends of the two preformed armor rods are fixedly connected with the two ends of the fixing ring respectively. The winding assembly is arranged at the other ends of the two pre-twisted wires, an optical cable core is accurately fixed through the wire twisting mechanism, the pre-twisted wires are normally wound on the outer side wall of the optical cable core, and therefore the practicability of the device is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical cable installation technical field especially relates to a pre -stranded wire strain fitting for optical cable. BACKGROUND

[0002] When overhead optical cable transmission line, need through strain fitting and fix optical cable on the tower, current strain clamp can only be fixed size optical cable core tension connection, the scope of application is greatly limited.

[0003] In prior art publication number CN 220399704 U patent application discloses a pre -stranded wire strain fitting for optical cable, including adjusting screw rod, adjusting hole, fixture main part and locking nut, the adjusting screw rod one end is spun into adjusting hole, adjusting screw rod is located on the one side of fixture main part outside and is provided with locking nut, adjusting screw rod can spin into until abuts on optical cable core. The optical cable core to be fixed is inserted into the fixture main part, and the length of the adjusting locking nut inserted into the fixture main part is used, until the adjusting screw rod abuts on the surface of the optical cable core, at this time, the optical cable core of different sizes can be fixed.

[0004] But in prior art, when fixing optical cable core, multiple adjusting screw rods need to be rotated simultaneously, the operator cannot ensure that multiple adjusting screw rods are rotated simultaneously, the optical cable core cannot be fixed in the middle of the fixture main body, the pre-stranded wire cannot be normally wound, resulting in low practicability of the device. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a pre-stranded wire strain fitting for optical cable, which solves the problem of low practicability of the device in prior art, i.e. when fixing the optical cable core, multiple adjusting screw rods need to be rotated simultaneously, the operator cannot ensure that multiple adjusting screw rods are rotated simultaneously, the optical cable core cannot be fixed in the middle of the fixture main body, and the pre-stranded wire cannot be normally wound.

[0006] To achieve the above object, the utility model provides a pre-stranded wire strain fitting for optical cable, including base and stranding mechanism, the stranding mechanism includes fixed frame, threaded rod, mounting seat, fixed assembly, fixed ring, two pre-stranded wires and winding assembly, both ends of the fixed frame are slidably connected with both ends of the base and penetrate the base, one end of the threaded rod is rotatably connected with the base, the threaded rod is screwedly connected with the fixed frame and located below the base, the mounting seat is fixedly connected with the base and located in the fixed frame, the fixed assembly is arranged below the fixed frame, one end of the fixed ring is fixedly connected with the base, one end of two pre-stranded wires is fixedly connected with both ends of the fixed ring, the winding assembly is arranged at the other end of two pre-stranded wires.

[0007] The fixed assembly comprises a mounting plate, a limiting rod and a telescopic sleeve, the threaded rod is provided with a limiting hole, the mounting plate is fixedly connected with the fixed frame and located on one side of the threaded rod, the limiting rod is slidably connected with the mounting plate and penetrates through the mounting plate, and the telescopic sleeve is arranged on the limiting rod and the mounting plate.

[0008] The telescopic sleeve comprises a moving block and a telescopic spring, the moving block is fixedly connected with one end of the limiting rod away from the threaded rod, and the two ends of the telescopic spring are fixedly connected with the moving block and the mounting plate respectively, and the limiting rod is located in the telescopic spring.

[0009] The twisting mechanism further comprises two rubber pads, one of the rubber pads is fixedly connected with the fixed frame and located in the fixed frame, and the other rubber pad is fixedly connected with the mounting seat and located above the mounting seat.

[0010] The winding assembly comprises a rotating ring and a connecting frame, the two ends of the rotating ring are fixedly connected with one end of two pre-twisted wires respectively, and the connecting frame is fixedly connected with the rotating ring.

[0011] The pre-twisted wire strain clamp for optical cable disclosed by the utility model can accurately fix the cable core in the middle of the fixed ring, so that the two pre-twisted wires can be accurately wound on the cable core, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced.

[0013] Figure 1 It is a structure schematic view of the pre-twisted wire strain clamp for optical cable of the utility model.

[0014] Figure 2 It is another direction structure schematic view of the pre-twisted wire strain clamp for optical cable of the utility model.

[0015] Figure 3 It is the A place local structure enlarged view of the pre-twisted wire strain clamp for optical cable of the utility model. Figure 2 of the utility model.

[0016] Figure 4 is the front view of the pre-stranded wire strain fitting for optical cable of the utility model.

[0017] 101-base, 102-fixed frame, 103-rubber pad, 104-mounting seat, 105-threaded rod, 106-limiting hole, 107-mounting plate, 108-limiting rod, 109-moving block, 110-elastic spring, 111-fixed ring, 112-pre-stranded wire, 113-rotary ring, 114-connecting frame. DETAILED DESCRIPTION

[0018] Please refer to Figures 1 to 4 , wherein, Figure 1 is the structure schematic view of the pre-stranded wire strain fitting for optical cable of the utility model, Figure 2 is the structure schematic view of the pre-stranded wire strain fitting for optical cable of the utility model in another direction, Figure 3 is the pre-stranded wire strain fitting for optical cable of the utility model, Figure 2 is the enlarged view of the partial structure of A, Figure 4 is the front view of the pre-stranded wire strain fitting for optical cable of the utility model.

[0019] The utility model provides a kind of pre-stranded wire strain fitting for optical cable, including base 101 and stranding mechanism, the stranding mechanism includes fixed frame 102, threaded rod 105, two rubber pads 103, mounting seat 104, fixed assembly, fixed ring 111, two pre-stranded wires 112 and winding assembly, the fixed assembly includes mounting plate 107, limiting rod 108 and elastic sleeve, the threaded rod 105 has limiting hole 106, the elastic sleeve includes moving block 109 and elastic spring 110, the winding assembly includes rotary ring 113 and connecting frame 114, by the foregoing scheme, it is solved in the prior art, when fixed optical cable core, it needs to rotate multiple adjusting screw simultaneously, operator cannot ensure that multiple adjusting screw rotates simultaneously, optical cable core cannot be fixed in the middle of fixture main body, pre-stranded wire 112 cannot normally wind, lead to the practicability of the device is lower Problem.

[0020] In the embodiment, two ends of the fixed frame 102 are slidably connected with two ends of the base 101 respectively and penetrate through the base 101, one end of the threaded rod 105 is rotatably connected with the base 101, the threaded rod 105 is threadedly connected with the fixed frame 102 and is located below the base 101, the mounting seat 104 is fixedly connected with the base 101 and is located in the fixed frame 102, the fixing assembly is arranged below the fixed frame 102, one end of the fixing ring 111 is fixedly connected with one end of the base 101, one end of each of the two pre-stranding wires 112 is fixedly connected with two ends of the fixing ring 111 respectively, the winding assembly is arranged at the other end of the two pre-stranding wires 112, when the pre-stranding wires 112 are wound, the cable core is stretched into the space between the base 101 and the fixed frame 102, then the threaded rod 105 is rotated, the threaded rod 105 drives the fixed frame 102 to move downwards until the cable core is clamped between the fixed frame 102 and the mounting seat 104, at this time, the cable core coincides with the central axis of the fixing ring 111 exactly, at this time, the threaded rod 105 is fixed by the fixing assembly, so that the threaded rod 105 does not dislocate to cause the cable core to shake during the winding process, then the two pre-stranding wires 112 are wound on the cable core by the winding assembly, the cable core is accurately fixed in the middle of the fixing ring 111 by the above manner, so that the two pre-stranding wires 112 can be accurately wound on the cable core, and the practicability of the device is improved.

[0021] Further, the mounting plate 107 is fixedly connected with the fixed frame 102 and is located at one side of the threaded rod 105, the limiting rod 108 is slidably connected with the mounting plate 107 and penetrates through the mounting plate 107, and the telescopic sleeve assembly is arranged on the limiting rod 108 and the mounting plate 107.

[0022] Further, the moving block 109 is fixedly connected with one end of the limiting rod 108 away from the threaded rod 105, two ends of the telescopic spring 110 are fixedly connected with the moving block 109 and the mounting plate 107 respectively, and the limiting rod 108 is located in the telescopic spring 110.

[0023] In the embodiment, when winding the pre-stranded wire 112, the cable core is extended between the base 101 and the fixed frame 102, and then the threaded rod 105 is rotated, the limiting hole 106 is rotated following the threaded rod 105, the extension spring 110 is in the stretched state, the threaded rod 105 drives the fixed frame 102 to move downwards until the cable core is clamped between the fixed frame 102 and the mounting seat 104, and the cable core is just coincident with the central axis of the fixed ring 111, at this time, the limiting hole 106 is aligned with the limiting rod 108, the extension spring 110 is reset and shrunk, and drives the limiting rod 108 to be inserted into the limiting hole 106, so as to fix the threaded rod 105, and ensure that the threaded rod 105 does not dislocate to cause the cable core to shake during winding.

[0024] Further, the two ends of the rotating ring 113 are respectively fixedly connected with one end of the two pre-stranded wires 112, and the connecting frame 114 is fixedly connected with the rotating ring 113.

[0025] In the embodiment, when winding the two pre-stranded wires 112, the cable core is fixed, the connecting frame 114 and the rotating ring 113 are rotated, the rotating ring 113 drives the two pre-stranded wires 112 to rotate, and the two pre-stranded wires 112 are wound on the cable core.

[0026] Further, one of the rubber pads 103 is fixedly connected with the fixed frame 102 and located in the fixed frame 102, and the other rubber pad 103 is fixedly connected with the mounting seat 104 and located above the mounting seat 104.

[0027] In the embodiment, the two rubber pads 103 can enhance the friction between the cable core and the fixed frame 102 and the mounting seat 104, so as to ensure that the cable core does not dislocate and slide, and the rubber pad 103 is soft and will not damage the cable core.

[0028] When the pre-stranded wire 112 is wound, the cable core is extended between the base 101 and the fixed frame 102, and then the threaded rod 105 is rotated, the limiting hole 106 is rotated along with the threaded rod 105, the telescopic spring 110 is in a stretched state, the threaded rod 105 drives the fixed frame 102 to move downwards until the cable core is clamped between the fixed frame 102 and the mounting seat 104, the cable core is just coincident with the central axis of the fixed ring 111, at this time, the limiting hole 106 is aligned with the limiting rod 108, the telescopic spring 110 is reset and shrunk, and drives the limiting rod 108 to be inserted into the limiting hole 106, the threaded rod 105 is fixed, and it is ensured that the threaded rod 105 does not dislocate to cause the cable core to shake during the winding process, then the connecting frame 114 and the rotating ring 113 are rotated, the rotating ring 113 drives two pre-stranded wires 112 to rotate, and the two pre-stranded wires 112 are wound on the cable core, the cable core is accurately fixed in the middle of the fixed ring 111 through the above mode, the two pre-stranded wires 112 can be accurately wound on the cable core, and the practicability of the device is improved.

[0029] The above disclosure is only a preferred embodiment of the present application, and cannot limit the scope of the present application. Those skilled in the art can understand that the above-mentioned embodiment can be implemented in whole or in part, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A pre-stranded optical cable tension fitting, characterized in that, It comprises a base and a stranding mechanism, the stranding mechanism comprises a fixed frame, a threaded rod, a mounting seat, a fixed assembly, a fixed ring, two pre-strands and a winding assembly, both ends of the fixed frame are respectively connected with both ends of the base in a sliding manner and penetrate through the base, one end of the threaded rod is connected with the base in a rotating manner, the threaded rod is connected with the fixed frame in a threaded manner and is located below the base, the mounting seat is fixedly connected with the base and is located in the fixed frame, the fixed assembly is arranged below the fixed frame, one end of the fixed ring is fixedly connected with the base, one end of two pre-strands is respectively fixedly connected with both ends of the fixed ring, and the winding assembly is arranged at the other end of the two pre-strands.

2. The pre-stranded optical cable tension fitting according to claim 1, characterized in that, The fixed assembly comprises a mounting plate, a limiting rod and an elastic sleeve, the threaded rod has a limiting hole, the mounting plate is fixedly connected with the fixed frame and located on one side of the threaded rod, the limiting rod is connected with the mounting plate in a sliding manner and penetrates through the mounting plate, and the elastic sleeve is arranged on the limiting rod and the mounting plate.

3. The pre-stranded optical cable tension fitting according to claim 2, characterized in that, The elastic sleeve comprises a moving block and an elastic spring, the moving block is fixedly connected with one end of the limiting rod away from the threaded rod, both ends of the elastic spring are respectively fixedly connected with the moving block and the mounting plate, and the limiting rod is located in the elastic spring.

4. The pre-stranded optical cable tension fitting according to claim 3, characterized in that, The stranding mechanism further comprises two rubber pads, one of the rubber pads is fixedly connected with the fixed frame and located in the fixed frame, and the other rubber pad is fixedly connected with the mounting seat and located above the mounting seat.

5. The pre-stranded optical cable tension fitting according to claim 4, characterized in that, The winding assembly comprises a rotating ring and a connecting frame, both ends of the rotating ring are respectively fixedly connected with one end of two pre-strands, and the connecting frame is fixedly connected with the rotating ring.

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