Stretch-resistant copper stranded wire

Abstract

The utility model discloses a tensile copper stranded wire, comprising a copper wire group, the copper wire group is formed by winding a plurality of copper wire cores, the two ends of the copper wire group are fixedly connected with fixing heads, the heads of the fixing heads are provided with connectors, the outer circumferential surface of one end of each connector is provided with two projections, one end of each connector is provided with a clamping head, and the clamping head is provided with a clamping groove. During installation, the fixing head is in threaded connection with the interior of the threaded hole of the connector, the two protruding blocks of the connector sequentially penetrate through the first cutting groove and the second cutting groove, so that the bottoms of the protruding blocks are clamped to the sliding ring, it can be guaranteed that the head of the connector is located above the sliding ring by rotating the connector, and installation is easy and convenient; the connector pulls the sliding ring to slide downwards along the sliding groove, the buffer spring is pressed to buffer the sliding ring, the copper wire core can be buffered and extended, the copper wire core is prevented from being pulled and damaged, the tensile property of the copper wire core is improved, and the service life of the copper wire core is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of copper stranded wires, in particular to a tensile-resistant copper stranded wire. Background Art

[0002] Copper stranded wire has a relatively bright surface, free of visible damage and scratches, and no noticeable discoloration from oxidation. The outer color is relatively uniform, free of dark spots and cracks, and the spacing is even and regular. Only when these criteria are met can copper stranded wire be selected as a good choice. Secondly, consider the copper stranded wire specifications. The selection of copper stranded wire requires careful consideration of the wire size and specifications. Generally, the wire drawing of copper stranded wire must be within the specified range and must not exceed the process standards. Otherwise, the wire will be considered invalid.

[0003] Copper stranded wires are required for power transmission. However, some existing copper stranded wires cannot extend well under tension. If the tension is too large, the copper stranded wires may break or be damaged.

[0004] Therefore, it is necessary to provide a tensile-resistant copper stranded wire to solve the above technical problems. Utility Model Content

[0005] The purpose of the present invention is to provide a tensile-resistant copper stranded wire to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: a tensile-resistant copper stranded wire, comprising a copper wire group, wherein the copper wire group is composed of a plurality of copper wire cores twisted together, and both ends of the copper wire group are fixedly connected to a fixed head, the head of the fixed head is provided with a connecting head, the outer circumferential surface of one end of the connecting head is provided with two protrusions, and one end of the connecting head is provided with a card joint. A sliding hole is provided in the card joint, and a through hole is provided at the end of the card joint. The diameter of the sliding hole is larger than the diameter of the through hole, and two first grooves are provided at positions opposite to each other on the inner wall of the through hole, and two sliding grooves are provided at positions opposite to each other on the inner wall of the sliding hole. The shape of the first groove is adapted to the shape of the protrusion, and a slip ring is slidably provided in the two sliding grooves, and a through hole is provided in the slip ring. Two second grooves are provided at positions opposite to each other on the inner wall of the through hole, and a buffer spring is provided between the bottom of the slip ring and the top of the through hole, and the buffer spring is sleeved on the outer circumferential surface of the connecting head. A mounting head is provided on the top of the card joint, and a wiring hole is provided on the mounting head.

[0007] As a preferred technical solution of the present invention, an external thread is provided on the outer circumferential surface of the fixing head, a threaded hole is provided on the end of the connecting head, and the fixing head is threadedly connected in the threaded hole.

[0008] As a preferred technical solution of the present invention, two sliding protrusions are provided at positions directly opposite to each other on the outer circumferential surface of the slip ring, and the shapes of the sliding protrusions are adapted to the shape of the sliding groove.

[0009] As a preferred technical solution of the present invention, the second groove has the same shape as the first groove, and the two grooves are arranged opposite to each other.

[0010] As a preferred technical solution of the present invention, an insulating protective film is provided on the outside of the copper wire group.

[0011] As a preferred technical solution of the present invention, the straight line formed by the two first cutting grooves and the straight line formed by the two sliding grooves are parallel to each other in the vertical direction.

[0012] As an optimal technical solution of the present invention, the copper wire core includes a copper wire, a plurality of steel wires are arranged on the outside of the copper wire, the plurality of steel wires are wound around the copper wire, and a coating layer is arranged on the outside of the plurality of steel wires to tighten the plurality of steel wires on the outer circumferential surface of the copper wire.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model discloses a tensile-resistant copper stranded wire. The utility model provides an insulating protective film on the outer side of a plurality of wound copper wire cores to prevent the copper wire cores from leaking electricity and causing injuries to the user. During installation, the fixed head is threadedly connected to the threaded hole of the connector. The two protrusions of the connector pass through the first slot and the second slot in sequence, so that the bottom of the protrusion is clamped on the slip ring. The connector head can be rotated to ensure that the connector head is located above the slip ring. The installation is simple and convenient. When the copper wire core is pulled, the connector pulls the slip ring to slide downward along the slide groove. The buffer spring is compressed to play a buffering role on the slip ring. Since the outer diameter of the slip ring is larger than the through hole, the slip ring is prevented from leaking electricity. The diameter of the connector can ensure that the connector will not be separated from the card joint, and it can buffer and extend the copper wire core to prevent the copper wire core from being damaged by tension, improve the tensile strength of the copper wire core, and thus extend the service life of the copper wire core. When the tension on the copper wire core disappears, the slip ring is reset under the action of the buffer spring. When the copper wire core is damaged after a long period of use, you only need to rotate the connector so that the two protrusions are aligned with the first groove to separate the connector from the card joint, then unscrew the fixed head from the connector, replace the new copper wire core and reinstall it for use. The replacement is convenient and fast, and there is no need to replace the entire part, which saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a three-dimensional exploded schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the connection relationship between the copper wire core and the fixed head of the utility model;

[0019] Figure 4 This is a cross-sectional view of the connection relationship between the fixed head, the connecting head and the card joint of the utility model;

[0020] Figure 5 It is a three-dimensional schematic diagram of the copper wire core structure of the utility model;

[0021] Figure 6 It is a three-dimensional schematic diagram of the internal structure of the copper wire core of the utility model;

[0022] Figure 7 This is a three-dimensional schematic diagram of the connector structure of the utility model;

[0023] Figure 8 It is a three-dimensional schematic diagram of the card joint structure of the utility model.

[0024] In the figure: 1. Copper wire core; 11. Copper wire; 12. Steel wire; 13. Coating layer; 2. Fixed head; 3. Connector; 31. Threaded hole; 32. Bump; 4. Card connector; 41. Sliding hole; 42. Through hole; 43. Sliding groove; 44. First groove; 5. Mounting head; 51. Wiring hole; 6. Slip ring; 61. Sliding protrusion; 62. Through hole; 63. Second groove; 7. Buffer spring; 8. Insulation protective film. DETAILED DESCRIPTION

[0025] The following describes the embodiments of the present invention with reference to the accompanying drawings. In the process, to ensure clarity and convenience of the description, we may exaggerate the width of the lines or the size of the components in the drawings.

[0026] In addition, the following terms are defined based on the functions of the present invention and may vary depending on the intention or custom of the user or operator. Therefore, these terms are defined based on the entire content of this specification.

[0027] like Figures 1 to 8As shown, a tensile-resistant copper stranded wire includes a copper wire group, which is composed of multiple copper wire cores 1 twisted together. An insulating protective film 8 is provided on the outside of the copper wire group to prevent leakage. Both ends of the copper wire group are fixedly connected to a fixed head 2, and an external thread is provided on the outer circumferential surface of the fixed head 2. The head of the fixed head 2 is provided with a connector 3, and a threaded hole 31 is provided at the end of the connector 3. The fixed head 2 is threadedly connected in the threaded hole 31, and the connection is stable and reliable. Two protrusions 32 are provided on the outer circumferential surface of the other end of the connector 3, and a card connector 4 is provided at one end of the connector 3. A sliding hole 41 is provided in the card connector 4. A through hole 42 is provided at the end, and the diameter of the sliding hole 41 is larger than the diameter of the through hole 42. Two first grooves 44 are provided at positions opposite to the inner wall of the through hole 42, and two sliding grooves 43 are provided at positions opposite to the inner wall of the sliding hole 41. The straight line formed by the two first grooves 44 and the straight line formed by the two sliding grooves 43 are parallel to each other in the vertical direction. The shape of the first groove 44 is adapted to the shape of the protrusion 32. The connector 3 enters the sliding hole 41 along the first groove 44 through the two protrusions 32. After entering, the connector 3 can be rotated to make the head of the connector 3 clamped in the sliding hole 41, effectively ensuring that the connector 3 will not detach from the clamping joint 4, and the clamping is convenient and fast.

[0028] like Figure 7 and Figure 8As shown, a slip ring 6 is slidably provided in the two slide grooves 43, and two sliding protrusions 61 are provided at positions opposite to the outer circumference of the slip ring 6. The shape of the sliding protrusion 61 is adapted to the shape of the slide groove 43. A through hole 62 is provided in the slip ring 6, and two second slots 63 are provided at positions opposite to the inner wall of the through hole 62. The shape of the second slot 63 is consistent with the shape of the first slot 44, and the two are opened opposite each other. The connector 3 passes through the two second slots 63 through the two protrusions 32, so that the protrusion 32 is located above the slip ring 6. The connector 3 is rotated to make the protrusion 32 misaligned with the second slot 63 to ensure that the lower end of the protrusion 32 abuts against the slip ring 6. A buffer spring 7 is provided between the bottom of the slip ring 6 and the top of the through hole 42. The buffer spring 7 is sleeved on the outer circumference of the connector 3. A mounting head 5 is provided on the top of the card joint 4. The wiring hole 51 is convenient for connecting to external lines. During installation and use, the fixed head 2 is threadedly connected to the threaded hole 31 of the connector 3, and the two protrusions 32 of the connector 3 pass through the first slot 44 and the second slot 63 in sequence, so that the bottom of the protrusion 32 is clamped on the slip ring 6. Rotating the connector 3 can ensure that the head of the connector 3 is located above the slip ring 6. When the copper wire core 1 is pulled, the connector 3 pulls the slip ring 6 to slide downward along the slot 43, and the buffer spring 7 is compressed to buffer the slip ring 6. Since the outer diameter of the slip ring 6 is larger than the diameter of the through hole 42, it ensures that the connector 3 will not be separated from the clamping joint 4, and can also play a buffering and extending role on the copper wire core 1, preventing the copper wire core 1 from being damaged by tension, improving the tensile strength of the copper wire core 1, and thus extending the service life of the copper wire core 1. When the tension on the copper wire core 1 disappears, the slip ring 6 is reset under the action of the buffer spring 7.

[0029] like Figure 5 and Figure 6 As shown, the copper wire core 1 includes a copper wire 11, and a plurality of steel wires 12 are arranged on the outside of the copper wire 11. The plurality of steel wires 12 are wound around the copper wire 11 to improve the tensile strength of the copper wire core 1. A coating layer 13 is arranged on the outside of the plurality of steel wires 12 to tighten the plurality of steel wires 12 on the outer circumferential surface of the copper wire 11.

[0030] The specific implementation method is that an insulating protective film 8 is provided on the outside of multiple wound copper wire cores 1 to prevent the copper wire cores 1 from leaking electricity and causing injuries to the user. During installation, the fixed head 2 is threadedly connected to the threaded hole 31 of the connector 3, and the two protrusions 32 of the connector 3 pass through the first groove 44 and the second groove 63 in sequence, so that the bottom of the protrusion 32 is clamped on the slip ring 6. The connector 3 can be rotated to ensure that the head of the connector 3 is located above the slip ring 6. The installation is simple and convenient. When the copper wire core 1 is pulled, the connector 3 pulls the slip ring 6 to slide downward along the slide groove 43, and the buffer spring 7 is compressed to buffer the slip ring 6. Since the outer diameter of the slip ring 6 is larger than the diameter of the through hole 42, the slip ring 6 is pulled downward along the slide groove 43. The buffer spring 7 is compressed to buffer the slip ring 6. The slip ring 6 is reset under the action of the buffer spring 7. When the copper wire core 1 is damaged after being used for a long time, it is only necessary to rotate the connector 3 so that the two protrusions 32 are aligned with the first slot 44 to separate the connector 3 from the card joint 4, and then unscrew the fixed head 2 from the connector 3, replace the new copper wire core 1 and reinstall it for use. The replacement is convenient and fast, and there is no need to replace the entire part, which saves costs.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A tensile-resistant copper stranded wire, characterized by: The invention comprises a copper wire group, wherein the copper wire group is composed of a plurality of copper wire cores (1) wound together, and both ends of the copper wire group are fixedly connected to a fixed head (2), the head of the fixed head (2) is provided with a connecting head (3), the outer circumferential surface of one end of the connecting head (3) is provided with two protrusions (32), and one end of the connecting head (3) is provided with a card joint (4), a sliding hole (41) is provided in the card joint (4), and a through hole (42) is provided at the end of the card joint (4), the diameter of the sliding hole (41) is larger than the diameter of the through hole (42), and two first slots (44) are provided at positions opposite to the inner wall of the through hole (42), and the sliding hole (4 1) Two slide grooves (43) are provided at opposite positions on the inner wall, the shape of the first groove (44) is adapted to the shape of the protrusion (32), a slip ring (6) is provided in the two slide grooves (43), a through hole (62) is provided in the slip ring (6), two second grooves (63) are provided at opposite positions on the inner wall of the through hole (62), a buffer spring (7) is provided between the bottom of the slip ring (6) and the top of the through hole (42), the buffer spring (7) is sleeved on the outer circumference of the connector (3), a mounting head (5) is provided at the top of the clamping joint (4), and a wiring hole (51) is provided on the mounting head (5).

2. The tensile-resistant copper stranded wire according to claim 1, characterized in that: An external thread is provided on the outer circumferential surface of the fixing head (2), a threaded hole (31) is provided at the end of the connecting head (3), and the fixing head (2) is threadedly connected in the threaded hole (31).

3. The tensile-resistant copper stranded wire according to claim 1, characterized in that: Two sliding protrusions (61) are provided at positions directly opposite to the outer circumferential surface of the slip ring (6), and the shape of the sliding protrusions (61) is adapted to the shape of the sliding groove (43).

4. The tensile-resistant copper stranded wire according to claim 1, characterized in that: The second slot (63) has the same shape as the first slot (44), and the two slots are arranged opposite each other.

5. The tensile-resistant copper stranded wire according to claim 1, characterized in that: An insulating protective adhesive film (8) is provided on the outside of the copper wire group.

6. The tensile-resistant copper stranded wire according to claim 1, characterized in that: The straight line formed by connecting the two first cutting grooves (44) and the straight line formed by connecting the two sliding grooves (43) are parallel to each other in the vertical direction.

7. The tensile-resistant copper stranded wire according to claim 1, characterized in that: The copper wire core (1) comprises a copper wire (11), a plurality of steel wires (12) are arranged on the outside of the copper wire (11), the plurality of steel wires (12) are mutually wound around the copper wire (11), and a coating layer (13) is arranged on the outside of the plurality of steel wires (12), and the plurality of steel wires (12) are tightened on the outer circumferential surface of the copper wire (11).

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