Pre-twisted wire strain fitting for optical cable

Abstract

The utility model relates to the technical field of preformed armor rod strain fittings, and discloses a preformed armor rod strain fitting for an optical cable. Comprising a tension ring, the left side face of the tension ring is fixedly connected with a left metal wire, the right side face of the tension ring is fixedly connected with a right metal wire, the side surface of the tension ring is fixedly connected with a connecting short rod, the end, away from the tension ring, of the connecting short rod is fixedly connected with a connecting pull ring, and the connecting pull ring is located above the tension ring. A rubber ring is arranged in the connecting pull ring, a wire sleeving ring is arranged in the tension ring, arc grooves are evenly distributed in the side surface of the wire sleeving ring, balls are movably connected into the arc grooves, and the side surfaces of the balls are attached to the inner wall of the tension ring. The metal wire does not need to be wound at a fixed point through manual measurement, and the twisted wire tensioning efficiency of the optical cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-twisted wire tension fittings, in particular to a pre-twisted wire tension fitting for optical cables. Background Art

[0002] Pre-twisted wire tension fittings refer to fittings used to fix conductors to withstand conductor tension and hang the conductors on tension strings or poles. When overhead optical cable transmission lines are used, the optical cables need to be fixed to poles with tension fittings. Pre-twisted wire tension fittings are a commonly used tension fitting, such as the patent subject "A pre-twisted wire tension fitting for optical cables", application number "202321529661.4", the connecting plate and the pre-twisted wire are hingedly connected, which provides space for the optical cable to swing and avoids damage to the connection caused by long-term shaking of the optical cable. Moreover, the tension clamp of the utility model can tension and connect optical cable cores of different sizes. However, when the twisted wire tension fittings are used, manual positioning is required on the optical cable line, which reduces the tensioning efficiency of the twisted wires of the optical cable line. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a pre-twisted wire tension fitting for optical cables, which can directly twist and tension the optical cables without the need for manual measurement and fixed-point winding of the metal wires, thereby improving the twist tensioning efficiency of the optical cables and solving the above-mentioned technical problems.

[0004] To achieve the above object, the utility model provides the following technical solution: comprising a tension ring, the left side of the tension ring is fixedly connected with a left metal wire, and the right side of the tension ring is fixedly connected with a right metal wire;

[0005] A connecting short rod is fixedly connected to the side surface of the tension ring, and a connecting pull ring is fixedly connected to one end of the connecting short rod away from the tension ring, and the connecting pull ring is located above the tension ring, and a rubber ring is arranged inside the connecting pull ring;

[0006] A wire loop is arranged inside the tension ring, arc grooves are evenly distributed on the side surface of the wire loop, balls are movably connected inside the arc grooves, and the side surface of the balls fits with the inner wall of the tension ring.

[0007] Through the above technical scheme, the center point of the optical cable to be processed is determined by the connection between the wire ring and the optical cable, and the connecting pull ring is pulled to swing forward, so that the connecting short rod drives the tension ring to rotate, and the left metal wire and the right metal wire are wound around the surface of the optical cable with the optical cable as the axis through the rotation of the tension ring, and the optical cable is twisted and tensioned. There is no need to manually measure the fixed point for winding the metal wire, thereby improving the twist tensioning efficiency of the optical cable.

[0008] As a preferred technical solution of the utility model, a right fixing ring is provided at one end of the tension ring away from the right metal wire, and the right fixing ring is located on the right side of the tension ring.

[0009] Through the above technical solution, the right fixing ring and the left fixing ring can fix the optical cable by connecting the right metal wire and the left metal wire of equal length.

[0010] As a preferred technical solution of the utility model, thread grooves are evenly distributed on the surface of the right fixing ring, a threaded rod is connected through the inside of the thread groove, and a connecting circular plate is fixedly connected to one end of the threaded rod away from the right fixing ring, and the connecting circular plate is located outside the right fixing ring.

[0011] Through the above technical solution, before the optical cable is twisted and tensioned, the optical cable to be processed is passed through the left fixing ring, the wire ring and the right fixing ring. After the center point of the optical cable is determined, the connecting circular plate is twisted to drive the threaded rod to rotate and move toward the inside of the right fixing ring.

[0012] As a preferred technical solution of the utility model, one end of the threaded rod close to the right fixed ring is rotatably connected to a limiting arc plate, and the limiting arc plate is located inside the right fixed ring, and rubber soft bumps are evenly distributed on the surface of the limiting arc plate.

[0013] Through the above technical scheme, the optical cable to be processed is pushed by the rotation of the threaded rod to squeeze and fix the limiting arc plate, and optical cables of different sizes can be fixed. At the same time, the optical cable to be processed is squeezed by the limiting arc plate, so that the rubber soft protrusion fits with the surface of the optical cable, and the optical cable is isolated from the limiting arc plate, avoiding contact between the optical cable and the side of the limiting arc plate, and preventing the optical cable from being damaged by friction with the right fixing ring and the limiting arc plate after the twisted wire is tensioned, thereby improving the protection of the device.

[0014] As a preferred technical solution of the utility model, a connecting circular groove is provided on the side surface of the right fixing ring, and the connecting circular groove is connected with the right metal wire through and through, and the connecting circular groove is communicated with the threaded groove.

[0015] Through the above technical solution, space is provided for the connection of the right metal wire by connecting the circular groove and the thread groove.

[0016] As a preferred technical solution of the utility model, the end of the right metal wire close to the connecting circular groove is fixedly connected to a connecting thin rod, the end of the connecting thin rod away from the right metal wire is fixedly connected to a fixed circular plate, and the fixed circular plate is located on the right side of the right fixing ring.

[0017] Through the above technical scheme, in the process of fixing the two ends of the optical cable, the fixing circular plate is pulled to make the connecting thin rod stretch the right metal wire, and the right end of the right metal wire is wrapped and fixed by rotating the threaded rod, thereby improving the tightness of the tensioning of the right metal wire strands.

[0018] As a preferred technical solution of the utility model, a connecting square groove is provided on the side surface of the threaded rod, and the connecting square groove is connected through the connecting thin rod.

[0019] Through the above technical solution, the connecting square groove is used to provide space for the movement of the connecting thin rod, and at the same time it is convenient to wrap and fix the end of the right metal wire.

[0020] As a preferred technical solution of the utility model, a left fixed ring is provided at the end of the tension ring away from the left metal wire, and the left fixed ring is located on the right side of the tension ring, the structure of the left fixed ring is consistent with that of the right fixed ring, and the structure of the right metal wire is consistent with that of the left metal wire.

[0021] With the above technical solution, since the structures of the left fixing ring and the metal wire are consistent with those of the right fixing ring and the right metal wire, the left end of the optical cable can be fixed by repeating the same operation on the right fixing ring.

[0022] Compared with the prior art, the utility model provides a pre-twisted wire tension fitting for optical cable, which has the following beneficial effects:

[0023] 1. The utility model pulls the connecting pull ring to make it swing forward, so that the connecting short rod drives the tension ring to rotate, and drives the fitted ball to rotate. Through the rotation of the tension ring, the left metal wire and the right metal wire are wound around the surface of the optical cable with the optical cable as the axis, and the optical cable is twisted and tensioned. There is no need to manually measure the fixed point to wind the metal wire, so the twisting tensioning efficiency of the optical cable is improved.

[0024] 2. The utility model pulls the fixed circular plate to move it to the right, thereby driving the connecting thin rod to move to the outside of the right fixed ring, stretching the right metal wire, so that the right metal wire extends into the inside of the connecting square groove, and utilizes the rotation of the threaded rod to wrap and fix the right end of the right metal wire, thereby improving the tightness of the right metal wire twist tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the front internal structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the split structure of the tension ring of the utility model;

[0028] Figure 4 It is a schematic diagram of the split structure of the right fixing ring of the utility model;

[0029] Figure 5 It is a schematic diagram of the local connection structure of the left metal wire of the utility model.

[0030] Among them: 1. tension ring; 2. connecting short rod; 3. connecting pull ring; 4. wire ring; 5. arc groove; 6. ball; 7. left metal wire; 8. right metal wire; 9. left fixing ring; 10. right fixing ring; 11. threaded groove; 12. threaded rod; 13. connecting circular plate; 14. limiting arc plate; 15. rubber soft bump; 16. connecting circular groove; 17. connecting square groove; 18. connecting thin rod; 19. fixing circular plate; 20. rubber ring. DETAILED DESCRIPTION

[0031] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0032] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] See also Figure 1-Figure 3 A pre-twisted wire tension fitting for an optical cable comprises a tension ring 1, a left metal wire 7 is fixedly connected to the left side of the tension ring 1, and a right metal wire 8 is fixedly connected to the right side of the tension ring 1.

[0035] A connecting short rod 2 is fixedly connected to the side surface of the tension ring 1, and a connecting pull ring 3 is fixedly connected to one end of the connecting short rod 2 away from the tension ring 1, and the connecting pull ring 3 is located above the tension ring 1, and a rubber ring 20 is arranged inside the connecting pull ring 3;

[0036] A wire loop 4 is arranged inside the tension ring 1 , arc grooves 5 are evenly distributed on the side surface of the wire loop 4 , balls 6 are movably connected inside the arc grooves 5 , and the side surface of the balls 6 fits with the inner wall of the tension ring 1 .

[0037] A right fixing ring 10 is provided at one end of the tension ring 1 away from the right metal wire 8 , and the right fixing ring 10 is located on the right side of the tension ring 1 .

[0038] In the process of pre-twisting the optical cable, after the two ends of the optical cable to be processed are fixed, the center point of the optical cable to be processed is determined by the connection between the wire ring 4 and the optical cable, and the connecting pull ring 3 is pulled to swing forward, so that the connecting short rod 2 drives the tension ring 1 to rotate, and drives the fitted ball 6 to rotate. Through the rotation of the tension ring 1, the left metal wire 7 and the right metal wire 8 are wound around the surface of the optical cable with the optical cable as the axis, and the optical cable is twisted and tensioned. There is no need to manually measure the fixed point for winding the metal wire, thereby improving the twisting tensioning efficiency of the optical cable.

[0039] See also Figure 1 and Figure 2 , the end of the tension ring 1 away from the right metal wire 8 is provided with a right fixing ring 10, and the right fixing ring 10 is located on the right side of the tension ring 1.

[0040] By connecting the right metal wire 8 and the left metal wire 7 of equal length, the right fixing ring 10 and the left fixing ring 9 can fix the optical cable.

[0041] See also Figure 4 The surface of the right fixing ring 10 is evenly distributed with thread grooves 11, and a threaded rod 12 is connected to the inside of the thread groove 11. The end of the threaded rod 12 away from the right fixing ring 10 is fixedly connected to a connecting circular plate 13, and the connecting circular plate 13 is located outside the right fixing ring 10.

[0042] Before the optical cable is twisted and tensioned, the optical cable to be processed is passed through the left fixing ring 9, the wire ring 4 and the right fixing ring 10. After the center point of the optical cable is determined, the connecting circular plate 13 is twisted to rotate it, thereby driving the threaded rod 12 to rotate and move toward the inside of the right fixing ring 10.

[0043] See also Figure 4 One end of the threaded rod 12 close to the right fixing ring 10 is rotatably connected to a limiting arc plate 14 , and the limiting arc plate 14 is located inside the right fixing ring 10 , and rubber soft bumps 15 are evenly distributed on the surface of the limiting arc plate 14 .

[0044] By rotating and moving the threaded rod 12, the limiting arc plate 14 is pushed to move inside the right fixing ring 10 to squeeze and fix the optical cable to be processed, so that optical cables of different sizes can be fixed. At the same time, the optical cable to be processed is squeezed by the limiting arc plate 14, so that the rubber soft protrusion 15 fits with the surface of the optical cable, so that the optical cable is isolated from the limiting arc plate 14, avoiding contact between the optical cable and the side of the limiting arc plate 14, and preventing the optical cable from being damaged by friction with the right fixing ring 10 and the limiting arc plate 14 after the twisted wire is tensioned, thereby improving the protection of the device.

[0045] See also Figure 4 A connecting circular groove 16 is provided on the side surface of the right fixing ring 10 , and the connecting circular groove 16 is connected with the right metal wire 8 through the connecting circular groove 16 , and the connecting circular groove 16 is connected with the thread groove 11 .

[0046] The communicating circular groove 16 and the thread groove 11 provide space for the connection of the right metal wire 8 .

[0047] See also Figure 4 and Figure 5 One end of the right metal wire 8 close to the connecting circular groove 16 is fixedly connected to a connecting thin rod 18 , and one end of the connecting thin rod 18 away from the right metal wire 8 is fixedly connected to a fixed circular plate 19 , and the fixed circular plate 19 is located on the right side of the right fixing ring 10 .

[0048] In the process of fixing the two ends of the optical cable, the fixing circular plate 19 is pulled to move to the right, thereby driving the connecting thin rod 18 to move to the outside of the right fixing ring 10, stretching the right metal wire 8, and extending the right metal wire 8 into the interior of the connecting square groove 17. The right end of the right metal wire 8 is wound and fixed by rotating the threaded rod 12, thereby improving the tightness of the right metal wire 8 twisted wire tensioning.

[0049] See also Figure 4 and Figure 5 A connecting square groove 17 is provided on the side surface of the threaded rod 12 , and the connecting square groove 17 is connected with the connecting thin rod 18 through and through.

[0050] The connecting square groove 17 is used to provide space for the movement of the connecting thin rod 18, and at the same time facilitates the winding and fixing of the end of the right metal wire 8.

[0051] See also Figure 1 and Figure 2 A left fixing ring 9 is provided at the end of the tension ring 1 away from the left metal wire 7, and the left fixing ring 9 is located on the right side of the tension ring 1. The structure of the left fixing ring 9 is consistent with that of the right fixing ring 10, and the structure of the right metal wire 8 is consistent with that of the left metal wire 7.

[0052] Since the structures of the left fixing ring 9 and the left metal wire 7 are consistent with those of the right fixing ring 10 and the right metal wire 8, the left end of the optical cable can be fixed by repeating the above operation.

[0053] When in use, the optical cable to be processed is passed through the left fixing ring 9, the wire ring 4 and the right fixing ring 10. After the center point of the optical cable is determined, the connecting circular plate 13 is twisted to rotate, thereby driving the threaded rod 12 to rotate and move toward the inside of the right fixing ring 10. Through the rotation and movement of the threaded rod 12, the limiting arc plate 14 is pushed to move toward the inside of the right fixing ring 10 to squeeze and fix the optical cable to be processed. Optical cables of different sizes can be fixed. At the same time, the optical cable to be processed is squeezed by the limiting arc plate 14, so that the rubber soft protrusion 15 fits with the surface of the optical cable, so that the optical cable is isolated from the limiting arc plate 14, and the optical cable is protected. In the process of fixing the two ends of the optical cable, the fixing circular plate 19 is pulled to move to the right, thereby driving the connecting thin rod 18 Move to the outside of the right fixing ring 10, stretch the right metal wire 8, and extend the right metal wire 8 into the connecting square groove 17. The right end of the right metal wire 8 is wound and fixed by rotating the threaded rod 12. Since the left fixing ring 9 and the left metal wire 7 are consistent with the right fixing ring 10 and the right metal wire 8 in structure, the left end of the optical cable can be fixed by repeating the above operation. When the two ends of the optical cable to be processed are fixed, the center point of the optical cable to be processed is determined by connecting the wire ring 4 with the optical cable, and the connecting pull ring 3 is pulled to swing forward, so that the connecting short rod 2 drives the tension ring 1 to rotate, and drives the fitted ball 6 to rotate. Through the rotation of the tension ring 1, the left metal wire 7 and the right metal wire 8 are wound around the surface of the optical cable with the optical cable as the axis, and the optical cable is twisted and tensioned.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre-twisted wire tension fitting for an optical cable, comprising a tension ring (1), characterized in that: A left metal wire (7) is fixedly connected to the left side of the tension ring (1), and a right metal wire (8) is fixedly connected to the right side of the tension ring (1); A connecting short rod (2) is fixedly connected to the side surface of the tension ring (1); an end of the connecting short rod (2) away from the tension ring (1) is fixedly connected to a connecting pull ring (3); the connecting pull ring (3) is located above the tension ring (1); and a rubber ring (20) is provided inside the connecting pull ring (3); A wire loop (4) is arranged inside the tension ring (1), arc grooves (5) are evenly distributed on the side surface of the wire loop (4), a ball (6) is movably connected inside the arc groove (5), and the side surface of the ball (6) is in contact with the inner wall of the tension ring (1).

2. The pre-twisted wire tension fitting for optical cable according to claim 1, characterized in that: A right fixing ring (10) is provided at one end of the tension ring (1) away from the right metal wire (8), and the right fixing ring (10) is located on the right side of the tension ring (1).

3. The pre-twisted wire tension fitting for optical cable according to claim 2, characterized in that: The surface of the right fixing ring (10) is evenly distributed with thread grooves (11), the interior of the thread groove (11) is penetrated by a threaded rod (12), one end of the threaded rod (12) away from the right fixing ring (10) is fixedly connected to a connecting circular plate (13), and the connecting circular plate (13) is located outside the right fixing ring (10).

4. The pre-twisted wire tension fitting for optical cable according to claim 3, characterized in that: One end of the threaded rod (12) close to the right fixing ring (10) is rotatably connected to a limiting arc plate (14), and the limiting arc plate (14) is located inside the right fixing ring (10), and the surface of the limiting arc plate (14) is evenly distributed with rubber soft bumps (15).

5. The pre-twisted wire tension fitting for optical cable according to claim 4, characterized in that: A communicating circular groove (16) is provided on the side surface of the right fixing ring (10), and the communicating circular groove (16) is connected to the right metal wire (8) through and through, and the communicating circular groove (16) is in communication with the thread groove (11).

6. The pre-twisted wire tension fitting for optical cable according to claim 1, characterized in that: One end of the right metal wire (8) close to the connecting circular groove (16) is fixedly connected to a connecting thin rod (18), and one end of the connecting thin rod (18) away from the right metal wire (8) is fixedly connected to a fixing circular plate (19), and the fixing circular plate (19) is located on the right side of the right fixing ring (10).

7. The pre-twisted wire tension fitting for optical cable according to claim 3, characterized in that: A connecting square groove (17) is provided on the side surface of the threaded rod (12), and the connecting square groove (17) is connected to the connecting thin rod (18) through and through.

8. The pre-twisted wire tension fitting for optical cable according to claim 1, characterized in that: A left fixing ring (9) is provided at one end of the tension ring (1) away from the left metal wire (7), and the left fixing ring (9) is located on the right side of the tension ring (1), the structure of the left fixing ring (9) is consistent with the structure of the right fixing ring (10), and the structure of the right metal wire (8) is consistent with the structure of the left metal wire (7).

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