Cable follow-up retraction device

Abstract

The utility model relates to a cable follow-up retraction and expansion device, including guide rail, slide bar, cable, first locating block, second locating block and follow-up sliding block, guide rail and first locating block solid link, still be equipped with the slide groove in the guide rail, one end of slide bar and second locating block solid link, the other end of slide bar is matched in the slide groove, slide bar still and follow-up sliding block solid link, the both ends of cable are respectively clamped between first locating block and guide rail, between second locating block and slide bar, the middle part of cable is clamped between follow-up sliding block and slide bar, and the length of cable is greater than the length of slide bar. Adopt the utility model provides the technical scheme, make cable not need frequently along the greater curvature radius winding on the disc or from the disc straight unrolling, cable does not pass through the frequent winding, is favorable for alleviating cable fatigue state, prolongs cable service life, in addition, avoids the cable under the action of external force, also is favorable for further prolonging cable service life.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connection technology, and in particular relates to a cable follow-up and retraction device. Background Technology

[0002] Various large-scale electromechanical devices are often composed of numerous mechanical components. According to the different functions of these mechanical components, they can be divided into external force components, transmission components, execution components, support components, and control components. Among them, the execution components often realize the various functions of the electromechanical device through their own movement. For example, the cutting tool of a CNC machine tool realizes the cutting of the workpiece surface through its own movement. The control component is the brain of the electromechanical device. The execution components and control components are usually electrically connected by cables to enable communication between them. Since the relative position between the execution component and other components changes when the execution component moves, in order to maintain a smooth electrical connection between them, the connecting cable between them needs to be able to switch between retracted and extended states at any time.

[0003] For example, patent document CN104204400B discloses a cable tray assembly for a drilling rig or other vertical structure, wherein the extendable cable tray assembly is configured for retractable attachment to a portion of the drilling rig's derrick. The cable tray assembly includes an upper tray fixedly connected to the derrick. A middle tray has a pivot end pivotally connected to the derrick and a hinged end rotatable between a stored position and an extended position below and offset relative to the upper tray. A lower tray has an upper end and a lower end. The upper end is pivotally connected to the hinged end of the middle tray. The lower tray is movable between a stored position and an extended position below and offset relative to the middle tray. An actuator is configured such that extension and retraction of the actuator cause the cable tray assembly to extend and retract.

[0004] In existing cable winding and unwinding structures, the cable is generally wound around the outer circumference of a disc component. The cable is contracted or unwound by the forward and reverse rotation of the disc. However, in the structure of electromechanical devices, the cable needs to move with the actuator, and at the same time, the cable needs to maintain electrical connection between the actuator and other fixed components. The cable needs to switch between contracted and unwound states. If the cable is contracted or unwound by the forward and reverse rotation of the disc, the cable needs to be frequently wound or straightened, which affects the service life of the cable. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cable follow-up and retraction device.

[0006] This utility model provides a cable follow-up and retraction device, including a guide rail, a slide rod, a cable, a first positioning block, a second positioning block, and a follower slider. The guide rail is fixedly connected to the first positioning block, and a groove is provided in the guide rail. One end of the slide rod is fixedly connected to the second positioning block, and the other end of the slide rod is fitted into the groove. The slide rod is also fixedly connected to the follower slider. Both ends of the cable are respectively clamped between the first positioning block and the guide rail, and between the second positioning block and the slide rod. The middle part of the cable is clamped between the follower slider and the slide rod, and the length of the cable is greater than the length of the slide rod.

[0007] The surface of the follower slider is also provided with a guide groove, and the guide rail is fitted inside the guide groove.

[0008] The number of follower sliders is multiple, and the cable between any two adjacent follower sliders is bent into an arc shape.

[0009] The distance between any two adjacent follower sliders shall not exceed 35mm.

[0010] One end of the slide rod is also provided with a first boss, which is fixed to the movable frame with screws. The other end of the slide rod is also provided with a chamfer, which is accommodated in the slide groove.

[0011] The movable frame is semi-circular in shape.

[0012] The surface of the guide rail is also provided with a clearance groove. The length direction of the clearance groove is consistent with the length direction of the slide groove, and the clearance groove is connected to the slide groove. At least one end of the clearance groove is set as an inlet section. The projection of the inlet section on the surface of the guide rail is a trapezoid with an outer end width greater than its inner end width.

[0013] One end of the guide rail is fixedly connected to the first frame, and the other end of the guide rail is provided with a second boss, which is also fixedly connected to the second frame with screws.

[0014] The first frame and the second frame are identical in shape and size.

[0015] The first or second frame is semi-circular in shape.

[0016] The beneficial effects of this utility model are as follows: When the slide bar extends or retracts along the length of the guide rail, it drives the follower slider to move synchronously and simultaneously along the length of the guide rail, causing the distance between two adjacent follower sliders to change, thereby straightening or retracting the cable. Compared with the prior art, the cable does not need to be frequently wound around the disc along a large radius of curvature or straightened and unwound from the disc. The cable does not undergo frequent winding, which helps to reduce cable fatigue and extend the cable's service life. In addition, during the process of the slide bar extending or retracting along the length of the guide rail, the external force always acts on the slide bar, minimizing the impact of external forces on the cable, which also helps to further extend the cable's service life. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of this utility model;

[0018] Figure 2 This is the front view of this utility model;

[0019] Figure 3 This is a bottom view of the connection between the guide rail and the slide rod in this utility model;

[0020] Figure 4 This is a utility model Figure 3 The right view;

[0021] Figure 5 This is the front view of the follower slider of the present invention.

[0022] In the figure: 1-guide rail, 2-slide bar, 3-cable, 4-first positioning block, 5-second positioning block, 6-follower slider, 7-slide groove, 8-guide groove, 9-first boss, 10-moving frame, 11-avoiding groove, 12-introduction section, 13-first frame, 14-second boss, 15-second frame. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings, but the scope of protection claimed is not limited to the description.

[0024] This utility model provides a cable follow-up and retraction device, such as Figures 1 to 5 As shown, the device includes a guide rail 1, a slide rod 2, a cable 3, a first positioning block 4, a second positioning block 5, and a follower slider 6. The guide rail 1 is fixedly connected to the first positioning block 4, and a groove 7 is provided inside the guide rail 1. One end of the slide rod 2 is fixedly connected to the second positioning block 5, and the other end of the slide rod 2 is fitted into the groove 7. The slide rod 2 is also fixedly connected to the follower slider 6. The two ends of the cable 3 are respectively clamped between the first positioning block 4 and the guide rail 1, and between the second positioning block 5 and the slide rod 2. The middle part of the cable 3 is clamped between the follower slider 6 and the slide rod 2, and the length of the cable 3 is greater than the length of the slide rod 2.

[0025] The technical solution provided by this utility model allows the sliding rod to extend or retract along the length of the guide rail when it extends or retracts. This causes the follower slider to move synchronously and simultaneously along the length of the guide rail, changing the distance between adjacent follower sliders and thus straightening or retracting the cable. Compared to existing technologies, this eliminates the need for the cable to frequently wind around or unwind from the disc along a large radius of curvature. The absence of frequent winding helps reduce cable fatigue and extend its service life. Furthermore, during the extension or retraction of the sliding rod along the guide rail, external force is always applied to the sliding rod, minimizing the impact of external forces on the cable and further extending its service life.

[0026] Specifically, the surface of the follower slider 6 is also provided with a guide groove 8, and the guide rail 1 is fitted inside the guide groove 8. The guide groove 8 guides the follower slider 6, so that the follower slider 6 can only move linearly along the length of the guide rail. Preferably, there are multiple follower sliders 6, and the cable 3 between any two adjacent follower sliders 6 is bent into an arc shape. The distance between any two adjacent follower sliders 6 does not exceed 35mm.

[0027] In addition, one end of the slide rod 2 is provided with a first boss 9, which is fixed to the movable frame 10 with screws. The other end of the slide rod 2 is provided with a chamfer, which is accommodated in the slide groove 7. Preferably, the movable frame 10 is semi-circular in shape.

[0028] In addition, the surface of the guide rail 1 is provided with a clearance groove 11. The length direction of the clearance groove 11 is consistent with the length direction of the slide groove 7, and the clearance groove 11 is connected to the slide groove 7. At least one end of the clearance groove 11 is set as an introduction section 12. The projection of the introduction section 12 on the surface of the guide rail 1 is a trapezoid with an outer end width greater than its inner end width. The slide rod 2 and the follower slider 6 can be fixed together with screws. When the follower slider 6 moves with the slide rod 2, it causes the corresponding screw to move along the length direction of the clearance groove 11. The clearance groove 11 is essentially used to guide the screw.

[0029] Specifically, one end of the guide rail 1 is fixedly connected to the first frame 13, and the other end of the guide rail 1 is provided with a second boss 14, which is also fixedly connected to the second frame 15 with screws. The first frame 13 and the second frame 15 are identical in shape and size. The first frame 13 or the second frame 15 is semi-circular in shape.

Claims

1. A cable follow-up retraction device characterized by: The device includes a guide rail (1), a slide rod (2), a cable (3), a first positioning block (4), a second positioning block (5), and a follower slider (6). The guide rail (1) is fixedly connected to the first positioning block (4). The guide rail (1) is also provided with a sliding groove (7). One end of the slide rod (2) is fixedly connected to the second positioning block (5), and the other end of the slide rod (2) is fitted into the sliding groove (7). The slide rod (2) is also fixedly connected to the follower slider (6). The two ends of the cable (3) are respectively clamped between the first positioning block (4) and the guide rail (1) and between the second positioning block (5) and the slide rod (2). The middle part of the cable (3) is clamped between the follower slider (6) and the slide rod (2), and the length of the cable (3) is greater than the length of the slide rod (2).

2. A cable follow-up retraction device as claimed in claim 1, characterized in that: The surface of the follower slider (6) is also provided with a guide groove (8), and the guide rail (1) is also fitted inside the guide groove (8).

3. A cable follow-up retraction device as claimed in claim 1, characterized in that: The number of the follower sliders (6) is multiple, and the cable (3) between any two adjacent follower sliders (6) is bent into an arc shape.

4. A cable follow-up retraction device as claimed in claim 3, characterised in that: The distance between any two adjacent follower sliders (6) shall not exceed 35mm.

5. A cable follow-up retraction device as claimed in claim 1, characterized in that: One end of the slide rod (2) is also provided with a first boss (9), and the first boss (9) is also fixed to the movable frame (10) with screws. The other end of the slide rod (2) is also provided with a chamfer, which is accommodated in the slide groove (7).

6. A cable follow-up retraction device as claimed in claim 5, characterised in that: The movable frame (10) is semi-circular in shape.

7. A cable follow-up retraction device as claimed in claim 1, characterized in that: The surface of the guide rail (1) is also provided with a clearance groove (11). The length direction of the clearance groove (11) is consistent with the length direction of the slide groove (7), and the clearance groove (11) is connected to the slide groove (7). At least one end of the clearance groove (11) is set as an inlet section (12). The projection of the inlet section (12) on the surface of the guide rail (1) is a trapezoid with an outer end width greater than its inner end width.

8. A cable follow-up retraction device as claimed in claim 1, characterized in that: One end of the guide rail (1) is also fixedly connected to the first frame (13), and the other end of the guide rail (1) is also provided with a second boss (14), which is also fixedly connected to the second frame (15) with screws.

9. A cable follow-up retraction device as claimed in claim 8, characterised in that: The first frame (13) and the second frame (15) are identical in shape and size.

10. A cable follow-up retraction device as claimed in claim 9, characterised in that: The first frame (13) or the second frame (15) is semi-circular in shape.

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