Wire harness contraction structure with protection structure

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a wire harness contraction structure with a protection structure, which comprises an upper sleeve and a lower sleeve, four groups of upper guide pipes distributed at equal intervals are fixedly mounted in the upper sleeve, and four groups of lower guide pipes distributed at equal intervals are fixedly mounted in the lower sleeve. The upper sleeve is provided with a fixing mechanism used for clamping a wire harness, a center shaft is fixedly installed in the upper sleeve, the free end of the center shaft is fixedly provided with a rotating disc rotationally connected with the lower sleeve, and the rotating disc is provided with a limiting mechanism used for limiting rotation of the upper sleeve. According to the utility model, the wire harness is sleeved in the upper guide tube and the lower guide tube, and the wire harness is protected by the upper sleeve and the lower sleeve, so that the wire harness is prevented from being in direct contact with the outside, and the service life of the wire harness is prolonged; by rotating the upper sleeve, the upper guide pipe and the lower guide pipe are controlled to be staggered, and redundant wire harnesses are stored in the upper sleeve and the lower sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a wire harness shrinkage structure with a protection structure. Background Technique

[0002] A wire harness is a group of metal wires and cables tied together to carry the connection of signals and power between devices. It is a wiring component connecting various electrical devices in the circuit of a numerical control device, and is composed of an insulating sheath, a wiring terminal, a wire, and insulating wrapping materials, etc.

[0003] In the existing technical field of electrical device settings, the length of the wire harness used is fixed and does not have elasticity. An overly long wire harness will cause chaos around the wiring terminal, affecting its aesthetics. At the same time, when installing the wire harness, there is often no sleeve provided to match the wire harness for protection, making the wire harness vulnerable to external factors, resulting in wear of the wire harness, thereby affecting its service performance. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems of chaos around the wiring terminal and lack of protection for the wire harness in the prior art, and to propose a wire harness shrinkage structure with a protection structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A wire harness shrinkage structure with a protection structure includes an upper sleeve and a lower sleeve. Four groups of equally spaced upper guide tubes are fixedly installed in the upper sleeve, and four groups of equally spaced lower guide tubes are fixedly installed in the lower sleeve. A fixing mechanism for clamping the wire harness is arranged on the upper sleeve;

[0007] A central shaft is fixedly installed in the upper sleeve. The free end of the central shaft is fixedly installed with a turntable rotatably connected to the lower sleeve. A limiting mechanism for restricting the rotation of the upper sleeve is arranged on the turntable.

[0008] Preferably, the upper sleeve is rotatably connected to the lower sleeve. The central shaft is located at the central position of the upper sleeve and the lower sleeve. The inner diameters of the four groups of upper guide tubes and lower guide tubes are equal.

[0009] Preferably, the fixing mechanism includes a buckle fixedly installed on the upper sleeve. An annular tooth groove is opened on the upper sleeve. A limiting hoop is meshed and connected in the annular tooth groove. An annular wedge block in contact with the upper end of the buckle is welded in the limiting hoop.

[0010] Preferably, the annular wedge block and the upper end of the buckle are trapezoidal structures with opposite directions. The limiting hoop and the buckle are concentrically arranged.

[0011] Preferably, the limiting mechanism includes a first ratchet wheel and a second ratchet wheel fixedly installed in the lower sleeve. A base is fixedly installed on the turntable. Strong springs are fixedly installed at both ends of the base. A first limiting block fixedly connected to the strong spring and abutting against the first ratchet wheel is slidably installed at one end of the base. A second limiting block fixedly connected to the strong spring and abutting against the second ratchet wheel is slidably installed at the other end of the base. Limiting bolts are installed in a matching manner in both the first limiting block and the second limiting block.

[0012] Preferably, the first ratchet wheel is located below the second ratchet wheel, and the inner diameter of the first ratchet wheel is larger than that of the second ratchet wheel. The sawtooth directions of the first ratchet wheel and the second ratchet wheel are opposite. The outer sides of the first limiting block and the second limiting block are both inclined surfaces, and the directions of the two groups of inclined surfaces are opposite.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] 1. The wire harness of the present utility model is sleeved in the upper guide tube and the lower guide tube, and the upper sleeve and the lower sleeve protect the wire harness to avoid direct contact between the wire harness and the outside world, thereby increasing the service life of the wire harness.

[0015] 2. By rotating the upper sleeve, the present utility model controls the misalignment of the upper guide tube and the lower guide tube, and stores the redundant wire harness in the upper sleeve and the lower sleeve to ensure the neatness around the wiring terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a wire harness contraction structure with a protection structure proposed by the present utility model;

[0017] Figure 2 is a cross-sectional view of a wire harness contraction structure with a protection structure proposed by the present utility model;

[0018] Figure 3 is an enlarged schematic structural diagram at A of a wire harness contraction structure with a protection structure proposed by the present utility model;

[0019] Figure 4 is a schematic structural diagram of the limiting mechanism of a wire harness contraction structure with a protection structure proposed by the present utility model.

[0020] In the figure: 1. Upper sleeve; 2. Lower sleeve; 3. Upper guide tube; 4. Lower guide tube; 5. Central axis; 6. Turntable; 7. Buckle; 8. Ring-shaped tooth groove; 9. Limiting hoop; 10. Ring-shaped wedge block; 11. First ratchet wheel; 12. Second ratchet wheel; 13. Base; 14. Strong spring; 15. First limiting block; 16. Second limiting block; 17. Limiting bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Referring to Figures 1 - 4 , a wire harness shrinkage structure with a protection structure, including an upper sleeve 1 and a lower sleeve 2. The upper sleeve 1 is rotatably connected to the lower sleeve 2, and the position of the lower sleeve 2 is fixed, and only the upper sleeve 1 can be rotated. Four groups of equally spaced upper guide tubes 3 are fixedly installed in the upper sleeve 1, and four groups of equally spaced lower guide tubes 4 are fixedly installed in the lower sleeve 2. The inner diameters of the four groups of upper guide tubes 3 and lower guide tubes 4 are equal, and there is a certain distance between the upper guide tubes 3 and the lower guide tubes 4, which is convenient for preventing damage to the wire harness when they are misaligned. A fixing mechanism for clamping the wire harness is provided on the upper sleeve 1.

[0023] The fixing mechanism includes a buckle 7 fixedly installed on the upper sleeve 1. The buckle 7 is made of an elastic material to ensure that it will not break when being squeezed. An annular tooth groove 8 is formed on the upper sleeve 1, and a limiting hoop 9 is meshed and connected in the annular tooth groove 8. The limiting hoop 9 is concentric with the buckle 7. An annular wedge 10 in contact with the upper end of the buckle 7 is welded inside the limiting hoop 9. The annular wedge 10 and the upper end of the buckle 7 are trapezoidal structures with opposite directions. The contact surface between the annular wedge 10 and the upper end of the buckle 7 is relatively smooth, thereby reducing the friction between the two and achieving the effect of labor saving.

[0024] A central shaft 5 is fixedly installed inside the upper sleeve 1. The central shaft 5 is located at the central position of the upper sleeve 1 and the lower sleeve 2. The central shaft 5 can improve the connection tightness between the upper sleeve 1 and the lower sleeve 2. A turntable 6 rotatably connected to the lower sleeve 2 is fixedly installed at the free end of the central shaft 5. A limiting mechanism for restricting the rotation of the upper sleeve 1 is provided on the turntable 6.

[0025] The limiting mechanism includes a first ratchet wheel 11 and a second ratchet wheel 12 fixedly installed in the lower sleeve 2. The first ratchet wheel 11 is located at the lower end of the second ratchet wheel 12, and the inner diameter of the first ratchet wheel 11 is larger than that of the second ratchet wheel 12. The sawtooth directions of the first ratchet wheel 11 and the second ratchet wheel 12 are opposite. A base 13 is fixedly installed on the turntable 6. Strong springs 14 are fixedly installed at both ends of the base 13. The strong springs 14 are parts made of elastic materials, which will deform under external forces and return to their original state after the external forces are removed. A first limiting block 15 fixedly connected to the strong spring 14 and abutting against the first ratchet wheel 11 is slidably installed at one end of the base 13. A second limiting block 16 fixedly connected to the strong spring 14 and abutting against the second ratchet wheel 12 is slidably installed at the other end of the base 13. The outer sides of the first limiting block 15 and the second limiting block 16 are both inclined planes, and the directions of the two groups of inclined planes are opposite. Limiting bolts 17 are installed in the first limiting block 15 and the second limiting block 16 in a matching manner. The limiting bolts 17 can fix the first limiting block 15 or the second limiting block 16 on the turntable 6 to adjust the forward and reverse rotation of the upper sleeve 1.

[0026] The functional principle of the present utility model can be described through the following operation methods:

[0027] Insert the wire harness into the upper guide tube 3 and the lower guide tube 4 from the end of the lower sleeve 2. Rotate the limiting hoop 9 clockwise so that its knob enters the annular tooth groove 8, and abut against the upper end of the buckle 7 through the annular wedge block 10 to squeeze the buckle 7 inward to clamp and fix the wire harness.

[0028] Rotate the left limiting bolt 17 clockwise to control the second limiting block 16 not to contact the second ratchet wheel 12. Rotate the upper sleeve 1 clockwise to displace the upper guide tube 3 and the lower guide tube 4, and store the excess wire harness in the upper sleeve 1 and the lower sleeve 2. At this time, the strong spring 14 always extends outward, and the position of the upper sleeve 1 is restricted by the first limiting block 15.

[0029] Release the restriction on the position of the second limiting block 16 and make the first limiting block 15 not contact the first ratchet wheel 11. Rotate the upper sleeve 1 counterclockwise to control the upper guide tube 3 and the lower guide tube 4 to align, and then rotate the limiting hoop 9 counterclockwise to release the fixation of the wire harness, and the wire harness can be taken out.

[0030] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A wire harness shrinkage structure with a protective structure, comprising an upper sleeve (1) and a lower sleeve (2), characterized in that, Four groups of upper guide tubes (3) distributed at equal distances are fixedly installed in the upper sleeve (1), four groups of lower guide tubes (4) distributed at equal distances are fixedly installed in the lower sleeve (2), and a fixing mechanism for clamping a wire harness is provided on the upper sleeve (1); A central shaft (5) is fixedly mounted inside the upper sleeve (1), a rotating disk (6) rotatably connected to the lower sleeve (2) is fixedly mounted on the free end of the central shaft (5), and a limiting mechanism for limiting the rotation of the upper sleeve (1) is provided on the rotating disk (6).

2. The wire harness shrinkage structure with a protection structure according to claim 1, characterized in that, The upper sleeve (1) is rotatably connected to the lower sleeve (2), the central axis (5) is located at the center of the upper sleeve (1) and the lower sleeve (2), and the inner diameters of the four groups of upper guide tubes (3) and lower guide tubes (4) are equal.

3. A wire harness shrinkage structure with a protection structure according to claim 1, wherein, The fixing mechanism comprises a buckle (7) fixedly mounted on the upper sleeve (1); the upper sleeve (1) is provided with an annular tooth groove (8); a limiting hoop (9) is meshingly connected inside the annular tooth groove (8); and an annular wedge (10) is welded inside the limiting hoop (9) and is in contact with the upper end of the buckle (7).

4. A wire harness shrinkage structure with a protection structure according to claim 3, characterized in that, The upper ends of the annular wedge (10) and the buckle (7) are ladder-shaped structures with opposite directions, and the limiting hoop (9) is concentrically arranged with the buckle (7).

5. A wire harness shrinkage structure with a protection structure according to claim 1, characterized in that, The limiting mechanism comprises a first ratchet (11) and a second ratchet (12) fixedly mounted in the lower sleeve (2); a base (13) is fixedly mounted on the rotating disk (6); strong springs (14) are fixedly mounted at both ends of the base (13); a first limiting block (15) fixedly connected to the strong spring (14) and in contact with the first ratchet (11) is slidably mounted on one end of the base (13); a second limiting block (16) fixedly connected to the strong spring (14) and in contact with the second ratchet (12) is slidably mounted on the other end of the base (13); and limiting bolts (17) are matched and mounted in the first limiting block (15) and the second limiting block (16).

6. A wire harness shrinkage structure with a protection structure according to claim 5, characterized in that, The first ratchet (11) is located at the lower end of the second ratchet (12), and the inner diameter of the first ratchet (11) is larger than the inner diameter of the second ratchet (12). The saw teeth of the first ratchet (11) and the second ratchet (12) are in opposite directions. The outer sides of the first limit block (15) and the second limit block (16) are both inclined surfaces, and the two sets of inclined surfaces are in opposite directions.

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