Super-flat plastic corrugated pipe structure for wire harness protection in vibration environment

Abstract

The utility model discloses a super-flat plastic corrugated pipe structure for wire harness protection in a vibration environment, which comprises a corrugated pipe and end pipes, the end pipes are mounted at two ends of the corrugated pipe, one end is a wire inlet end, the other end is a wire outlet end, the end pipes are sleeved with a mounting pipe, a limiting mechanism arranged on the outer end face of the mounting pipe is arranged in the end pipes, and the end pipes are connected with the mounting pipe. Damping strips are mounted in the corrugated pipe, threaded protrusions are arranged on the outer circumferential face of the end pipe, and threaded grooves meshed with the threaded protrusions are formed in the inner circumferential face of the mounting pipe. The utility model provides a super-flat plastic corrugated pipe structure for wire harness protection in a vibration environment, which solves the problem that when the existing corrugated pipe is used in the vibration environment, although the contact area can be increased to play a role in protection, a wire still can generate oscillating contact wear at a gap between the wire and the corrugated pipe in the vibration environment.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipes, in particular to an ultra-flat plastic corrugated pipe structure used for protecting wire harnesses in a vibration environment. Background Art

[0002] A corrugated tube usually refers to a tubular elastic sensitive element, which is made of foldable corrugated sheets connected along the folding and stretching direction. Among the corrugated tubes, the harness corrugated tube is a tube with a concave and convex waveform, which is often used in the parts of the harness that are subject to more mechanical shock to protect the harness from damage. The ultra-flat corrugated tube is a corrugated tube with a special structure, and its trough width is 3-5 times that of other wave types. This design effectively increases the contact area between the wire and the inner wall of the corrugated tube, thereby providing better protection for the PVC surface of the wire.

[0003] However, when used in a vibrating environment, although the traditional ultra-flat corrugated tube can increase the contact area to provide protection, the wires will still experience swinging contact wear at the gap between the two in a vibrating environment.

[0004] Therefore, it is necessary to provide an ultra-flat plastic bellows structure for protecting wiring harnesses in a vibration environment to solve the above technical problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an ultra-flat plastic bellows structure for protecting wire harnesses in a vibrating environment to solve the problem that when the existing bellows are used in a vibrating environment, although the contact area can be increased to play a protective role, the wires will still produce swinging contact wear at the gap connecting the two in a vibrating environment.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An ultra-flat plastic corrugated pipe structure for protecting a wire harness in a vibration environment, comprising: a corrugated pipe, an end pipe;

[0008] End pipes are installed at both ends of the corrugated pipe, one end is the incoming line end, and the other end is the outgoing line end. The end pipe is sleeved with the mounting pipe so that the limiting mechanism set on the outer end surface of the mounting pipe is placed inside the end pipe. A shock-absorbing strip is installed inside the corrugated pipe.

[0009] In one embodiment, a threaded protrusion is formed on the outer circumference of the end tube, and a threaded groove meshing with the threaded protrusion is formed on the inner circumference of the mounting tube.

[0010] In one embodiment, a limiting mechanism is installed on the outer end surface of the mounting tube, and a plurality of limiting mechanisms are arranged in a circular array at intervals. Parts of the limiting mechanism located at the end tube and the mounting tube are spaced apart from the walls of both.

[0011] In one embodiment, the limiting mechanism is composed of a connecting plate, a limiting plate, and a pad. The connecting plate is an L-shaped structure as a whole, and its horizontal section is connected to the mounting tube, and the bottom of the vertical section is connected to the limiting plate. The limiting plate extends toward the inside of the mounting tube, and the bottom of the limiting plate is an arc-shaped surface. The limiting plate is an elastic steel sheet structure as a whole, and the part located in the mounting tube is inclined downward. Pads are evenly distributed on the bottom surface of the arc-shaped surface of the limiting plate. The pads are made of hard rubber and abut against the outer sheath of the wire.

[0012] In one embodiment, the shock-absorbing strip is generally in the shape of a circular ring, and its outer circumference is in contact with the inner wall of the trough of the corrugated tube. The interior of the shock-absorbing strip is made of synthetic cotton, and the exterior is covered with insulating cloth. The number of the shock-absorbing strips is consistent with the number of troughs of the corrugated tube. The shock-absorbing strips are connected by insulating strips, and intermittent grooves are provided on the circumference of the insulating strips.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model inserts an integrated shock-absorbing strip into the interior of the corrugated tube so that the shock-absorbing strip abuts against the trough of the corrugated tube. The provision of the insulating strip and the discontinuous groove facilitates the installation of the shock-absorbing strip. At the same time, the insulating strip helps to reduce the friction between the corrugated tube and the wire.

[0015] (2) The utility model screws the installation tube and the end tube into place so that the limit plate is located inside the end tube and abuts against the outer skin of the wire. The end of the wire is limited by the cooperation of the cushion block and the limit plate to avoid excessive friction between the end tube and the inner wall of the corrugated tube. The two are connected when they are disassembled. Even if the end tube is damaged, the installation tube can still be used for the next end tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the utility model;

[0017] Figure 2 This is a detailed diagram of the end of the corrugated pipe of the utility model;

[0018] Figure 3 This is a detail diagram of the limiting mechanism of the utility model;

[0019] Figure 4 This is a detail diagram of the shock-absorbing strip of the utility model.

[0020] Among them, the names corresponding to the figure marks are: corrugated pipe 1, end pipe 2, threaded protrusion 21, mounting pipe 3, limiting mechanism 4, connecting plate 41, limiting plate 42, cushion block 43, shock absorbing strip 5, insulating strip 51, discontinuous groove 52. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0022] like Figure 1-Figure 4 As shown, the utility model provides an ultra-flat plastic corrugated tube structure for protecting wire harnesses in a vibration environment, comprising: a corrugated tube 1, an end tube 2, a mounting tube 3, a limiting mechanism 4, and a shock absorbing strip 5;

[0023] like Figure 1-Figure 4 As shown, end tubes 2 are installed at both ends of the corrugated tube 1, one end of which is the incoming line end and the other end is the outgoing line end. The end tube 2 is sleeved with the mounting tube 3, so that the limiting mechanism 4 provided on the outer end surface of the mounting tube 3 is placed inside the end tube 2 to limit and clamp the two ends of the wire. A shock-absorbing strip 5 is installed inside the corrugated tube 1.

[0024] Preferably, in one embodiment, Figure 1-Figure 2 As shown, the outer circumference of the end pipe 2 is provided with a threaded protrusion 21, and the inner circumference of the mounting tube 3 is provided with a threaded groove engaged with the threaded protrusion 21. The two are connected when disassembled, and even if the end pipe 2 is damaged, the mounting tube 3 can still be used for the next end pipe 2.

[0025] Preferably, in one embodiment, Figure 2-Figure 3 As shown, a limiting mechanism 4 is installed on the outer end surface of the mounting tube 3, and a plurality of limiting mechanisms 4 are arranged in a circular array at intervals. The limiting mechanisms 4 are located at the end tube 2 and the mounting tube 3 and are spaced apart from the walls of both.

[0026] Preferably, in one embodiment, Figure 2-Figure 3As shown, the limiting mechanism 4 is composed of a connecting plate 41, a limiting plate 42, and a pad 43. The connecting plate 41 is an L-shaped structure as a whole, and its horizontal section is connected to the mounting tube 3, and the bottom of the vertical section is connected to the limiting plate 42. The limiting plate 43 extends toward the inside of the mounting tube 3, and the bottom of the limiting plate 43 is an arc-shaped surface. The limiting plate 43 is an elastic steel sheet structure as a whole, and its part located in the mounting tube 3 is inclined downward. The bottom surface of the arc-shaped surface of the limiting plate 43 is evenly distributed with pads 43, and the pads 43 are made of hard rubber. The pads 43 abut against the outer skin of the wire. When working, the mounting tube 3 and the end tube 2 are screwed into place, so that the limiting plate 43 is inside the end tube 2 and abuts against the outer skin of the wire. The end of the wire is limited by the cooperation of the pad 43 and the limiting plate 42 to avoid excessive friction between it and the inner wall of the corrugated tube 1.

[0027] Preferably, in one embodiment, Figure 4 As shown, the shock-absorbing strip 5 is in the shape of a circular ring as a whole, and its outer circumference is in contact with the inner wall of the trough of the corrugated tube 1. The interior of the shock-absorbing strip 5 is made of synthetic cotton, and the exterior is covered with insulating cloth. The number of the shock-absorbing strips 5 is consistent with the number of the troughs of the corrugated tube 1. The shock-absorbing strips 5 are connected by insulating strips 51. Intermittent grooves 52 are provided on the circumference of the insulating strips 51. The integrated shock-absorbing strip 5 is inserted into the interior of the corrugated tube 1 so that the shock-absorbing strip 5 abuts against the trough of the corrugated tube 1. The provision of the insulating strip 51 and the intermittent grooves 52 helps to facilitate the installation of the shock-absorbing strip 5. At the same time, the insulating strip 51 helps to reduce the friction between the corrugated tube 1 and the wires.

[0028] Working principle of this utility model:

[0029] During operation, the mounting tube 3 and the end tube 2 are screwed into place so that the limiting plate 43 is inside the end tube 2 and abuts against the outer skin of the wire. The end of the wire is limited by the cooperation of the pad 43 and the limiting plate 42 to avoid excessive friction between the end of the wire and the inner wall of the corrugated tube 1. The integrated shock-absorbing strip 5 is inserted into the corrugated tube 1 so that the shock-absorbing strip 5 abuts against the trough of the corrugated tube 1. The provision of the insulating strip 51 and the intermittent groove 52 helps to facilitate the installation of the shock-absorbing strip 5. At the same time, the insulating strip 51 helps to reduce the friction between the corrugated tube 1 and the wire.

[0030] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. An ultra-flat plastic bellows structure for protecting wiring harnesses in a vibration environment, characterized in that: include: Bellows, end pipes; End tubes are installed at both ends of the corrugated tube, one end of which is the incoming line end and the other end is the outgoing line end. The end tube is sleeved with the mounting tube so that the limiting mechanism arranged on the outer end surface of the mounting tube is placed inside the end tube. A shock-absorbing strip is installed inside the corrugated tube. The shock-absorbing strip is in the shape of a circular ring as a whole, and its outer circumference is in contact with the inner wall of the trough of the corrugated tube. The interior of the shock-absorbing strip is made of synthetic cotton and the outside is covered with insulating cloth. The number of the shock-absorbing strips is consistent with the number of troughs of the corrugated tube. The shock-absorbing strips are connected by insulating strips, and discontinuous grooves are provided on the circumference of the insulating strip.

2. The ultra-flat plastic corrugated tube structure for protecting wiring harnesses in a vibration environment according to claim 1, characterized in that: The outer circumference of the end pipe is provided with a threaded protrusion, and the inner circumference of the mounting pipe is provided with a threaded groove meshed with the threaded protrusion.

3. The ultra-flat plastic corrugated tube structure for protecting wiring harnesses in a vibration environment according to claim 2, characterized in that: The outer end surface of the installation tube is installed with a limiting mechanism, and the limiting mechanisms are arranged in a ring array with multiple groups at intervals. The parts of the limiting mechanisms located at the end tube and the installation tube are spaced apart from the walls of both.

4. The ultra-flat plastic corrugated tube structure for protecting wiring harnesses in a vibration environment according to claim 3, characterized in that: The limiting mechanism is composed of a connecting plate, a limiting plate, and a pad. The connecting plate is an L-shaped structure as a whole, and its horizontal section is connected to the mounting tube, and the bottom of the vertical section is connected to the limiting plate. The limiting plate extends toward the inside of the mounting tube, and the bottom of the limiting plate is an arc-shaped surface. The limiting plate is an elastic steel sheet structure as a whole, and the part located in the mounting tube is inclined downward. Pads are evenly distributed on the bottom surface of the arc-shaped surface of the limiting plate. The pads are made of hard rubber and abut against the outer sheath of the wire.

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