Length-adjustable cable butt joint structure

Abstract

The utility model relates to a length-adjustable cable butt joint structure, which comprises an external thread sleeve, a middle wall arranged in the middle of the external thread sleeve, a plurality of conducting rods arranged on the middle wall in a penetrating manner, conducting sleeves sleeved on the conducting rods in a sliding manner, end parts of the conducting sleeves extending to the outer side of the external thread sleeve and connected to a patch board, and an internal thread sleeve rotationally sleeved on the patch board, the side, away from the patch board, of the internal thread sleeve is sleeved with the external thread sleeve in a threaded mode, the patch board is provided with a plurality of wiring structures connected to the conductive sleeve, the wiring structures are used for being connected with cable cores of cables, the side, close to the patch board, of the internal thread sleeve is sleeved with a protective cover in a threaded mode, and the side, away from the patch board, of the protective cover is provided with an opening for the cables to penetrate through. According to the utility model, the butt joint distance can be conveniently adjusted according to the distance between the butt joint ends of two cables, so that the butt joint of the cables can be conveniently completed no matter whether the distance is small or large.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable connection, and particularly relates to a cable butt joint structure with adjustable length. Background Art

[0002] A cable is an electrical conductor used to transmit power, signals or data. It is usually composed of one or more insulated cores that are wrapped in a protective layer to prevent physical damage and environmental factors. During power construction, in order to meet the cable length requirements, it is often necessary to connect two or more cables in series. Specifically, the opposite ends of two adjacent cables are docked. When docking, the protective layer of the cable needs to be removed, and then the insulation layer on each core is removed, so that each core of the two cables is connected to the cable connector to achieve cable docking.

[0003] The cable connectors in the prior art include split cable connectors and integrated cable connectors, and the split cable connectors include male connectors and female connectors. When using the split cable connector for docking, the cores of the two cables are respectively connected to the male connector and the female connector respectively, and then the male connector and the female connector are quickly connected. When using the integrated cable connector for docking, it is only necessary to relatively connect the cores of the two cables to the two ends of the integrated cable connector. However, whether it is a split cable connector or an integrated cable connector, the length cannot be adjusted, resulting in the inability to connect when the distance between the docking ends of the cables on both sides is too large, and when the distance between the docking ends of the cables on both sides is too small, the cables need to be bent before the cores can be connected to one end of the cable connector. Since some cables have high resilience or are not easy to bend, this greatly increases the difficulty of cable connection. Utility Model Content

[0004] The utility model provides a cable butt joint structure with adjustable length, which can conveniently adjust the butt joint distance according to the distance between the butt joint ends of two cables, so that the butt joint of the cables can be conveniently completed regardless of whether the distance is small or large.

[0005] The technical solution adopted by this utility model:

[0006] A cable docking structure with adjustable length comprises an external threaded sleeve, a middle wall is provided in the middle of the external threaded sleeve, a plurality of conductive rods are penetrated on the middle wall, a conductive sleeve is provided on the conductive rods for sliding, ends of the conductive sleeves extend outside the external threaded sleeves and are connected to a wiring board, an internal threaded sleeve is rotatably provided on the wiring board, a side of the internal threaded sleeve away from the wiring board is threadedly provided on the external threaded sleeve, a plurality of wiring structures connected to the conductive sleeves are provided on the wiring board, the wiring structures are used to connect the cores of the cable, a protective cover is provided on the side of the internal threaded sleeve close to the wiring board, and an opening for the cable to pass through is provided on the side of the protective cover away from the wiring board.

[0007] Furthermore, a long groove is arranged at intervals on one side of the conductive sleeve close to the middle wall, a spiral groove is arranged on one end of the conductive sleeve close to the middle wall, and a spiral spring is arranged in the spiral groove.

[0008] Furthermore, a stress groove is provided on one end of the long groove away from the middle wall.

[0009] Furthermore, a plurality of limit rods are provided on the middle wall, and limit sleeves are slidably sleeved on both ends of the limit rods, and the limit sleeves are connected to the wiring board.

[0010] Furthermore, a limiting block is slidably provided inside the limiting sleeve, and the limiting rod is penetrated through the end wall of the limiting sleeve and connected to the limiting block.

[0011] Furthermore, the wiring structure includes a plurality of power connection slots spaced apart on the end surface of the wiring panel, a conductive seat is provided on one side of the power connection slot close to the axis of the wiring panel, the conductive seat is connected to the conductive sleeve, a locking screw is threadedly provided on the side wall of the power connection slot away from the axis of the wiring panel, and a clamping block is rotatably provided on one end of the locking screw close to the conductive seat.

[0012] Furthermore, a slide bar is provided on the clamping block, a slide groove is provided on the side wall of the power connection slot away from the axis of the wiring board, and the slide bar is slidably arranged in the slide groove.

[0013] Furthermore, a hand-holding ring is provided in the middle of the external threaded sleeve.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Because the external threaded sleeve is threadedly connected to the internal threaded sleeve, the terminal disk is rotatably connected to the internal threaded sleeve, the conductive rod is slidably arranged in the conductive sleeve, the conductive rod is fixedly penetrated on the middle wall in the external threaded sleeve, and the conductive sleeve is fixedly connected to the terminal disk, when the internal threaded sleeve is rotated on the external threaded sleeve, the internal threaded sleeve will rotate and move on the external threaded sleeve, and the internal threaded sleeve can drive the terminal disk to move away from or close to the external threaded sleeve, so that the utility model can adjust the distance between the terminal disks at both ends according to the distance between the butt ends of the two cables, so as to facilitate the completion of the butt connection between the two cables. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 for Figure 1 A in the enlarged view;

[0018] Figure 3 for Figure 2 The cross-sectional view at BB in FIG.

[0019] Figure 4 for Figure 2 The enlarged view of point C in the figure;

[0020] Figure 5 for Figure 2 The enlarged view of point D in the figure;

[0021] Figure 6 for Figure 2 The enlarged view of point E in the figure;

[0022] Figure 7 It is a schematic diagram of the lateral structure of the open end of the conductive sleeve;

[0023] In the figure: 1. limit rod; 2. middle wall; 3. external thread sleeve; 4. internal thread sleeve; 5. conductive rod; 6. protective cover; 7. cable; 8. terminal block; 9. locking screw; 10. conductive sleeve; 11. limit sleeve; 12. conductive seat; 13. wire core; 14. clamping block; 15. slide groove; 16. slide rod; 17. power connection groove; 18. stress groove; 19. long groove; 20. spiral spring; 21. limit block; 22. hand-held ring. DETAILED DESCRIPTION

[0024] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0025] See also Figures 1 to 7 The utility model provides a cable docking structure with adjustable length, including an external threaded sleeve 3, a middle wall 2 is provided in the middle of the external threaded sleeve 3, a plurality of conductive rods 5 are fixedly penetrated on the middle wall 2, a conductive sleeve 10 is slidably sleeved on the conductive rod 5, the inner wall of the conductive sleeve 10 is connected to the outer wall of the conductive rod 5, both ends of the conductive sleeve 10 extend outside the two sides of the external threaded sleeve 3, and both ends of the conductive sleeve 10 are fixedly connected to the wiring disk 8, an internal threaded sleeve 4 is rotatably sleeved on the wiring disk 8, the outer wall of the wiring disk 8 is located outside the internal threaded sleeve 4, and the wiring disk 8 can be The inner threaded sleeve 4 rotates inside the inner threaded sleeve 4, but cannot slide along the axis direction of the inner threaded sleeve 4. The inner threaded sleeve 4 is threadedly sleeved on the outer threaded sleeve 3 on the side away from the wiring disk 8. The wiring disk 8 is provided with a plurality of wiring structures connected to the conductive sleeve 10. The wiring structure is used to connect the wire core 13 of the cable 7. The inner threaded sleeve 4 is threadedly sleeved on the side close to the wiring disk 8, which is convenient for disassembling and assembling the protective cover 6 from the inner threaded sleeve 4. After the protective cover 6 is covered on the wiring disk 8, it is used to prevent people from electric shock. The protective cover 6 is provided on the side away from the wiring disk 8. An opening for the cable 7 to pass through is provided;

[0026] When the cables 7 need to be docked, the protective covers 6 on both sides are rotated and removed from the two internal threaded sleeves 4, and then the two protective covers 6 are put on the two cables 7. According to the distance between the two cables 7, the internal threaded sleeve 4 is rotated on the external threaded sleeve 3. Since the external threaded sleeve 3 is threadedly connected with the internal threaded sleeve 4, the terminal plate 8 is rotatably connected with the internal threaded sleeve 4, the conductive rod 5 is slidably arranged in the conductive sleeve 10, the conductive rod 5 is fixedly penetrated on the middle wall 2 in the external threaded sleeve 3, and the conductive sleeve 10 is fixedly connected to the terminal plate 8, the internal threaded sleeve 4 will rotate and move on the external threaded sleeve 3, and the internal threaded sleeve 4 can drive the connection The wire reel 8 moves away from or towards the external threaded sleeve 3. During this process, the wiring reel 8 drives the conductive sleeve 10 to slide on the conductive rod 5, so that the conductive sleeve 10 and the conductive rod 5 are in a conductive contact state until the distance between the wiring reels 8 on both sides is adjusted to be suitable for connecting the two cables 7. After the wire cores 13 of the two cables 7 are respectively connected to the wiring structures on both sides, the protective cover 6 is rotatably connected to the internal threaded sleeve 4 to complete the connection, so that the utility model can adjust the distance between the wiring reels 8 at both ends according to the distance between the butt ends of the two cables 7, so as to facilitate the butt connection between the two cables 7.

[0027] Preferably, a plurality of long grooves 19 are provided at intervals on one side of the conductive sleeve 10 close to the middle wall 2, a spiral groove is provided on the outer wall of the conductive sleeve 10 close to the end of the middle wall 2, and a spiral spring 20 is provided in the spiral groove. By utilizing the design of multiple long grooves 19 and the radial rebound force of the spiral spring 20, the inner wall of the opening side of the conductive sleeve 10 can be well pressed onto the outer wall of the conductive rod 5, and when wear occurs between the inner wall of the conductive sleeve 10 and the outer wall of the conductive rod 5, the radial rebound force of the spiral spring 20 can be used to compensate for the wear gap, so that the inner wall of the conductive sleeve 10 remains in contact with the outer wall of the conductive rod 5.

[0028] Preferably, a stress groove 18 is provided on one end of the long groove 19 away from the middle wall 2. The design of the stress groove 18 allows the opening section of the conductive sleeve 10 to bend at the stress groove 18 when the coil spring 20 is radially pressed against the end of the conductive sleeve 10, which is beneficial to increase the fitting area between the inner wall of the conductive sleeve 10 and the outer wall of the conductive rod 5, thereby reducing the resistance between the conductive sleeve 10 and the conductive rod 5.

[0029] Preferably, a plurality of limit rods 1 are fixedly provided on the middle wall 2, and limit sleeves 11 are slidably sleeved on both ends of the limit rods 1. The limit sleeves 11 are fixedly connected to the wiring disk 8. The limit rods 1 can slide in the limit sleeves 11 to limit the wiring disk 8 from rotating along the internal threaded sleeve 4, so that during the process of adjusting the docking distance, the conductive sleeve 10 can only slide on the conductive rod 5 along its axial direction, thereby avoiding excessive lateral force between the conductive sleeve 10 and the conductive rod 5 during the adjustment process to cause unnecessary wear.

[0030] Preferably, a limit block 21 is slidably provided inside the limit sleeve 11, and the limit rod 1 is passed through the end wall of the limit sleeve 11 and fixedly connected to the limit block 21. The limit block 21 can only slide inside the limit sleeve 11 but cannot fall out of the limit sleeve 11, so as to avoid the conductive rod 5 falling out of the conductive sleeve 10 when the internal threaded sleeve 4 is rotated to adjust the docking distance.

[0031] Preferably, the wiring structure includes a plurality of power connection slots 17 spaced apart on the end surface of the wiring disk 8, a conductive seat 12 is fixedly provided on one side of the power connection slot 17 close to the axis of the wiring disk 8, the conductive seat 12 is connected to the conductive sleeve 10, a locking screw 9 is threadedly penetrated on the side wall of the power connection slot 17 away from the axis of the wiring disk 8, the locking screw 9 is located on the outside of the internal threaded sleeve 4, a clamping block 14 is rotatably provided on the end of the locking screw 9 close to the conductive seat 12, after the wire core 13 is extended into the conductive seat 12 in the power connection slot 17, the locking screw 9 is rotated to screw the locking screw 9 into the outer wall of the wiring disk 8, the locking screw 9 drives the clamping block 14 to press the wire core 13 onto the conductive seat 12, so that the wire core 13 of the cables 7 on both sides are respectively connected to the conductive rod 5 through the conductive seats 12 on both sides and the conductive sleeves 10 on both sides to form a conductive connection.

[0032] Preferably, a slide bar 16 is fixed on the clamping block 14, and a slide groove 15 is provided on the side wall of the power connection groove 17 away from the axis of the wiring board 8. The slide bar 16 is slidably arranged in the slide groove 15. When the locking screw 9 is rotated, the locking screw 9 drives the clamping block 14 to move toward the conductive seat 12. During this process, the clamping block 14 will drive the slide bar 16 to slide in the slide groove 15, so that the clamping block 14 can be prevented from rotating with the locking screw 9, and the clamping block 14 can be prevented from driving the wire core 13 to rotate, so that the wire core 13 can be accurately pressed between the clamping block 14 and the conductive seat 12.

[0033] Preferably, a hand-held ring 22 is fixedly provided in the middle of the external threaded sleeve 3 , and the internal threaded sleeve 4 can be conveniently rotated by holding the hand-held ring 22 .

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A cable docking structure with adjustable length, characterized in that: It includes an external threaded sleeve, a middle wall is provided in the middle of the external threaded sleeve, a plurality of conductive rods are passed through the middle wall, a conductive sleeve is provided on the sliding sleeve of the conductive rod, the ends of the conductive sleeve are extended outside the external threaded sleeve and connected to the wiring disk, an internal threaded sleeve is rotatably provided on the wiring disk, the internal threaded sleeve is threadedly provided on the external threaded sleeve at a side away from the wiring disk, a plurality of wiring structures connected to the conductive sleeve are provided on the wiring disk, the wiring structure is used to connect the cores of the cable, a protective cover is provided on the threaded sleeve on a side of the internal threaded sleeve close to the wiring disk, and an opening for the cable to pass through is provided on a side of the protective cover away from the wiring disk.

2. The cable butt joint structure with adjustable length according to claim 1, characterized in that: A long groove is arranged at intervals on one side of the conductive sleeve close to the middle wall, a spiral groove is arranged on one end of the conductive sleeve close to the middle wall, and a spiral spring is arranged in the spiral groove.

3. The cable butt joint structure with adjustable length according to claim 2, characterized in that: A stress groove is arranged on one end of the long groove away from the middle wall.

4. The cable butt joint structure with adjustable length according to claim 3, characterized in that: A plurality of limiting rods are provided on the middle wall, and limiting sleeves are slidably sleeved on both ends of the limiting rods, and the limiting sleeves are connected to the wiring board.

5. The cable butt joint structure with adjustable length according to claim 4, characterized in that: A limiting block is slidably arranged inside the limiting sleeve, and the limiting rod is penetrated through the end wall of the limiting sleeve and connected to the limiting block.

6. The cable butt joint structure with adjustable length according to claim 1, characterized in that: The wiring structure includes a plurality of power connection slots spaced apart on the end surface of the wiring panel, a conductive seat is provided on one side of the power connection slot close to the axis of the wiring panel, the conductive seat is connected to the conductive sleeve, a locking screw is threadedly penetrated on the side wall of the power connection slot away from the axis of the wiring panel, and a clamping block is rotatably provided on the end of the locking screw close to the conductive seat.

7. The cable butt joint structure with adjustable length according to claim 6, characterized in that: The pressing block is provided with a slide bar, and a slide groove is provided on the side wall of the power connection slot away from the axis of the wiring board, and the slide bar is slidably arranged in the slide groove.

8. A cable butt joint structure with adjustable length according to any one of claims 1 to 7, characterized in that: A hand-holding ring is arranged in the middle of the external thread sleeve.

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