CN221202009U - Corrugated pipe - Google Patents

Abstract

The application relates to the field of wire harness protection, in particular to a corrugated pipe. The corrugated pipe is provided with an opening structure extending in the axial direction of the corrugated pipe, the opening structure is provided with a radial inner side surface facing into the corrugated pipe in the radial direction of the corrugated pipe, the opening structure is also provided with opening side wall surfaces which are arranged at intervals in the circumferential direction of the corrugated pipe, the radial inner side surface and the opening side wall surfaces are connected through a first curved surface and/or a first inclined surface, namely, the radial inner side edge of the opening structure of the corrugated pipe is provided with the first curved surface and/or the first inclined surface, so that the edge angle between the radial inner side surface and the opening side wall surfaces can be alleviated, the possibility that the wire harness is scratched by sharp edges between the radial inner side surface and the opening side wall surfaces is reduced, and the protection effect of the corrugated pipe on the wire harness is ensured.

Description

Corrugated pipe

Technical Field

The application relates to the field of wire harness protection, in particular to a corrugated pipe.

Background

The corrugated pipe can be used for protecting wire harnesses such as wires and cables of electronic equipment from mechanical damages such as cutting and cracking, has the advantages of good flexibility, good bending property, acid resistance, oil resistance, wear resistance, pressure resistance and the like, and particularly has wide application in the field of wire harness protection of electronic equipment in the automobile industry.

At present, common corrugated pipes are generally divided into two types, namely a corrugated pipe with a non-slotted pipe body, and a corrugated pipe with a slotted pipe axially slotted in the pipe body, so that a wire harness can be conveniently assembled in the corrugated pipe from the slotted pipe through an automatic process after being connected with a connector through the automatic process, and the wire harness can be conveniently assembled in the corrugated pipe through the automatic process.

However, when the wire harness is assembled into the corrugated pipe from the slit and the wire harness is bent after the wire harness is assembled into the corrugated pipe, the slit on the corrugated pipe can be opened, and the protected wire harness is easily scratched by the slit of the corrugated pipe, so that the protection effect of the corrugated pipe on the wire harness is lost.

Disclosure of utility model

The application provides a corrugated pipe, which aims to solve the technical problem that a wire harness is easily scratched by a corrugated pipe notch, so that the corrugated pipe loses the protection effect on the wire harness.

According to an aspect of the present application, there is provided in one embodiment a corrugated tube having an opening structure extending in an axial direction thereof, the opening structure having a radially inner side surface facing into the corrugated tube in a radial direction of the corrugated tube, the opening structure further having opening side wall surfaces arranged at intervals in a circumferential direction of the corrugated tube, the radially inner side surface and the opening side wall surfaces being connected by a first curved surface and/or a first inclined surface.

In an alternative embodiment, the first curved surface is a curved surface.

In an alternative embodiment, the opening structure has a radially outer side surface facing radially outward of the bellows, the radially outer side surface and the opening sidewall surface being connected by a second curved surface and/or a second inclined surface.

In an alternative embodiment, the second curved surface is a curved surface.

In an alternative embodiment, the bellows has a groove arranged in its axial direction, the opening structure being arranged on the wall of the groove.

In an alternative embodiment, the walls of the recess comprise a recess side wall arranged at intervals in the circumferential direction of the bellows and a recess bottom wall connecting the two recess side walls, the opening structure being provided on the recess bottom wall.

In an alternative embodiment, the groove bottom wall has an outer groove bottom wall surface facing into the corrugated tube, the radially inner side surface is disposed on the outer groove bottom wall surface, and a minimum distance between the radially inner side surface and the central axis of the corrugated tube is less than or equal to an inner diameter of the corrugated tube at a groove bottom position.

In an alternative embodiment, the outer groove bottom wall forms the radially inner side, the outer groove bottom wall being coplanar with the inner side of the bellows in the groove bottom position.

In an alternative embodiment, the distance between two of said groove side walls increases gradually in the radial direction of said bellows from said groove bottom wall to the groove opening.

In an alternative embodiment, both of the groove side walls have an inner groove wall surface facing into the groove, the inner groove wall surface being planar.

According to the corrugated pipe of the embodiment, the radial inner side surface of the corrugated pipe opening structure is connected with the opening side wall surface through the first curved surface and/or the first inclined surface, namely, the radial inner side opening edge of the corrugated pipe opening structure is provided with the first curved surface and/or the first inclined surface, so that the edge angle between the radial inner side surface and the opening side wall surface can be alleviated, the possibility that the sharp edge angle between the radial inner side surface and the opening side wall surface scratches a wire harness is reduced, and the protection effect of the corrugated pipe on the wire harness is ensured.

Drawings

FIG. 1 is a perspective view of a bellows in one embodiment;

FIG. 2 is a front view of a bellows in one embodiment;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged view of the portion I of FIG. 3;

FIG. 5 is a schematic diagram showing an opening structure of a bellows in an embodiment;

fig. 6 is a schematic diagram of an opening structure of a bellows in another embodiment.

In the figure: 1. a bellows; 11. a trough; 12. a groove; 121. a bottom wall of the tank; 122. a groove sidewall; 13. an opening structure; 1311. a radially inner side; 1312. a radially outer side; 1313. an opening sidewall surface; 1314. a first curved surface; 1315. a first inclined surface; 1316. and a second curved surface.

Detailed Description

The application will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present application. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, related operations of the present application have not been shown or described in the specification in order to avoid obscuring the core portions of the present application, and may be unnecessary to persons skilled in the art from a detailed description of the related operations, which may be presented in the description and general knowledge of one skilled in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operational steps involved in the embodiments may be sequentially exchanged or adjusted in a manner apparent to those skilled in the art. Accordingly, the description and drawings are merely for clarity of describing certain embodiments and are not necessarily intended to imply a required composition and/or order.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated.

The application discloses a corrugated pipe 1 which is mainly applied to electronic equipment and is used for being assembled on the outer side of a wire harness, a cable and an electric wire so as to protect the wire harness, the cable and the electric wire.

The corrugated tube 1 has an opening structure 13 extending in an axial direction thereof, the opening structure 13 has a radial inner side surface 1311 facing the inside of the corrugated tube 1 in a radial direction of the corrugated tube 1, the opening structure 13 further has opening side wall surfaces 1313 arranged at intervals in a circumferential direction of the corrugated tube 1, and the radial inner side surface 1311 and the opening side wall surfaces 1313 are connected by a first curved surface 1314 and/or a first inclined surface 1315.

When the opening structure 13 of the corrugated tube 1 is in a closed state, the two opening side wall surfaces 1313 are attached; the two opening side wall surfaces 1313 are connected with the radial inner side surface 1311 through the first curved surface 1314 and/or the first inclined surface 1315, which can be understood that the radial inner side edge of the corrugated pipe opening structure 13 is provided with the first curved surface 1314 and/or the first inclined surface 1315, so that the edge angle between the radial inner side surface 1311 and the opening side wall surface 1313 of the corrugated pipe opening structure 13 can be alleviated, the possibility that the sharp edge angle between the radial inner side surface 1311 and the opening side wall surface 1313 scratches the protected wire harness in the corrugated pipe 1 can be reduced under the condition that the wire harness is bent and the opening structure 13 of the corrugated pipe 1 is in an open state, and the protection effect of the corrugated pipe 1 on the wire harness can be ensured.

Specifically, in some embodiments, referring to fig. 1 to fig. 4, the opening sidewall surface 1313 and the radial inner side surface 1311 may be connected by only a first curved surface 1314, the first curved surface 1314 extends in the axial direction of the bellows 1, and the first curved surface 1314 may be a curved surface with equal curvature in the direction from the opening sidewall surface 1313 to the radial inner side surface 1311, so that the first curved surface 1314 between the opening sidewall surface 1313 and the radial inner side surface 1311 is convenient to process, and the processing of the first curved surface 1314 may be achieved by only one machining process; or in other embodiments, the first curved surface 1314 may be a curved surface formed by combining a plurality of curved surfaces having different curvatures.

In some embodiments, referring to fig. 5, the opening sidewall surface 1313 and the radially inner surface 1311 may be connected by a first inclined surface 1315, the first inclined surface 1315 extends in the axial direction of the bellows 1, and the first inclined surface 1315 may be formed by providing a chamfer between the opening sidewall surface 1313 and the radially inner surface 1311, so that the first inclined surface 1315 between the opening sidewall surface 1313 and the radially inner surface 1311 is also convenient to process.

Of course, in other embodiments, the opening sidewall surface 1313 and the radial inner surface 1311 may be connected by the first inclined surface 1315 and the first curved surface 1314, so that the machining accuracy of the connection surface between the opening sidewall surface 1313 and the radial inner surface 1311 may be reduced, and the machining efficiency of the entire bellows 1 may be improved.

In some embodiments, the opening structure 13 further has a radially outer side 1312 facing radially outward of the bellows 1, the radially outer side 1312 and the opening sidewall 1313 being connected by a second curved surface 1316 and/or a second inclined surface. This can alleviate the corner between the radially outer side surface 1312 and the opening side wall surface 1313 of the opening structure 13, and can reduce the possibility that the sharp corner between the radially outer side surface 1312 and the opening side wall surface 1313 will scratch the wire harness during the process of assembling the wire harness into the corrugated tube 1, and also helps to ensure the protective effect of the corrugated tube 1 on the wire harness.

Specifically, referring to fig. 6, the radially outer side surface 1312 of the opening structure 13 and the radially inner side surface 1311 may be connected by a second curved surface 1316, the second curved surface 1316 extends in the axial direction of the bellows 1, and the second curved surface 1316 may be an arc surface with equal curvature in the direction from the radially inner side surface 1311 to the radially outer side surface 1313, so that the second curved surface 1316 between the radially inner side surface 1311 and the radially outer side surface 1313 is convenient to process, and the second curved surface 1316 may be processed only by a single machining process; or in other embodiments, the second curved surface 1316 may be a curved surface formed by combining a plurality of curved surfaces having different curvatures.

In other embodiments, the opening sidewall surface 1313 and the radially outer side surface 1312 may be further connected by a second inclined surface, which extends in the axial direction of the bellows 1, and the second inclined surface may be formed by providing a chamfer between the opening sidewall surface 1313 and the radially outer side surface 1312, so that machining of the second inclined surface between the opening sidewall surface 1313 and the radially outer side surface 1312 is also facilitated. Or in other embodiments, the opening side wall surface 1313 and the radial outer side surface 1312 may be connected by the second inclined surface and the second curved surface 1316, so that the machining accuracy of the connection surface between the opening side wall surface 1313 and the radial outer side surface 1312 may be reduced, and the machining efficiency of the whole corrugated tube 1 may be improved.

In some embodiments, referring to fig. 1 and 2, the bellows 1 has a groove 12 disposed along an axial direction thereof, and the opening structure 13 is disposed on a wall of the groove 12. The structure of the groove 12 facilitates manual handling of the groove side wall 122 of the groove 12 to open the opening structure 13, facilitating the assembly of the wire harness in the corrugated tube 1 by manual work; and the recess 12 sets up along the axial of bellows 1, and opening structure 13 sets up in recess 12, conveniently passes through location structure and recess 12 cooperation when cutting open to realize bellows 1 circumference location, avoid opening structure 13 to follow bellows 1 circumference rotation, help guaranteeing opening structure 13 on bellows 1's position accuracy.

Further, in some embodiments, please continue to refer to fig. 1 and 2, the wall of the groove 12 includes a groove sidewall 122 arranged at intervals in the circumferential direction of the corrugated tube and a groove bottom wall 121 connecting the two groove sidewalls 122, and the opening structure 13 is disposed on the groove bottom wall 121, so that the processing of the opening structure 13 is facilitated, and the uniformity of the opening structure 13 on the corrugated tube is facilitated during the mass production of the corrugated tube 1.

Of course, in other embodiments, the opening structure 13 may be provided on the groove sidewall 122 of the groove 12, as long as the opening structure 13 extends axially along the corrugated tube 1, and the corrugated tube 1 is located in the groove 12.

In some embodiments, the groove bottom wall 121 of the groove 12 has an outer groove bottom wall surface facing into the corrugated tube 1, and the radially inner side surface 1311 is disposed on the outer groove bottom wall surface, and a minimum distance between the radially inner side surface 1311 and a central axis of the corrugated tube 1 is less than or equal to an inner diameter of the corrugated tube 1 at a position of the trough 11.

Specifically, in the axial direction of the corrugated tube 1, referring to fig. 1 to 6, the opening structure 13 is provided on the tank bottom wall 121, the tank bottom wall 121 has an outer tank bottom wall surface facing the inside of the corrugated tube 1 and an inner tank bottom wall surface facing the outside of the corrugated tube 1 in the radial direction of the corrugated tube 1, the radial inner side surface 1311 is provided on the outer tank bottom wall surface of the corrugated tube 1, and the radial outer side surface 1312 is provided on the inner tank bottom wall surface of the corrugated tube 1; the opening structure 13 is disposed at the middle position of the bottom wall 121, and the radial inner side surface 1311 is coplanar with the inner surface of the corrugated tube 1 at the position of the trough 11, so that the distance between the radial inner side surface 1311 and the central axis of the corrugated tube 1 is equal to the inner diameter of the corrugated tube 1 at the position of the trough 11, that is, the wire harness protected by the step rib scratch disposed between the radial inner side surface 1311 and the inner surface of the corrugated tube 1 at the position of the trough 11 can be avoided, and the protection effect of the whole corrugated tube 1 on the wire harness can be ensured.

Of course, in other embodiments, the cross-sectional shape of the groove 12 in the axial direction of the corrugated tube 1 is substantially U-shaped, at least part of the side wall of the groove bottom wall 121 of the groove 12 located at the position of the trough 11 with respect to the corrugated tube 1 is provided in an arc-shaped convex manner toward the inside of the corrugated tube 1, that is, at least part of the outer side groove bottom wall surface of the groove bottom wall 121 is provided at the inner surface of the corrugated tube 1 located at the position of the trough 11, may be the inner side of the inner surface of the corrugated tube 1 located at the position of the trough 11 in the radial direction of the corrugated tube 1, or part of the outer side groove bottom wall surface located at the inner surface of the corrugated tube 1 located at the position of the trough 11 in the radial direction of the corrugated tube 1 is provided at the inner side, and all or part of the radial inner side surface 1311 is provided at the inner side so as to satisfy that the minimum distance between the radial inner side surface 1311 and the central axis of the corrugated tube 1 is smaller than the inner diameter of the corrugated tube 1 located at the position of the trough 11, so that the radial inner side surface 1311 and the inner surface of the corrugated tube 1 located at the position of the trough 11 form the inner surface located at the inner surface of the trough 11 in the radial direction of the corrugated tube 1, the concave surface is not formed at the inner surface located at the position of the trough 11, and the concave surface is also provided to contribute to the protection of the wire harness to the wire harness.

In some embodiments, the outer groove bottom wall 121 forms a radially inner side 1311, the outer groove bottom wall 121 being coplanar with the inner side of the bellows 1 at the trough 11.

Specifically, referring to fig. 3 to 6, the bottom wall 121 includes a portion of a sidewall of the corrugated tube 1 at the position of the trough 11, the bottom wall 121 is an arc sidewall disposed around the central axis of the corrugated tube 1, and the radius of the arc sidewall is equal to the minimum radius of the corrugated tube 1, so that the outer bottom wall surface of the bottom wall 121 forms a radial inner side 1311, and the outer bottom wall surface is coplanar with the inner side surface of the corrugated tube 1 at the position of the trough 11, so that the surface coplanarity between the radial inner side 1311 and the surface of the corrugated tube 1 at the position of the trough 11 can be ensured no matter where the opening structure 13 is disposed at the bottom wall 121.

In some embodiments, the distance between the two groove side walls 122 of the groove 12 on the bellows 1 increases gradually from the groove bottom wall 121 toward the notch in the radial direction of the bellows 1.

Specifically, please refer to fig. 3 to 6, two groove side walls 122 of the groove 12 may be arranged in an "eight" shape, the two groove side walls 122 of the groove 12 are connected by a groove bottom wall 121, the groove bottom wall 121 is an arc groove bottom wall arranged around the central axis of the corrugated tube 1, the distance between the two groove side walls 122 at the groove bottom is smaller than that of the notch, and the distance between the two groove side walls 122 increases gradually from the groove bottom to the notch, so that a worker can hold the two groove side walls 122 by two hands or hold the two groove side walls 122 by a fixture to open the opening structure 13 of the corrugated tube 1, and the wire harness is conveniently put into the corrugated tube 1.

Further, in some embodiments, it is preferred that both slot sidewalls 122 have an inner slot wall surface facing into the slot 12, which is planar. With continued reference to fig. 3 to 6, the two groove side walls 122 of the groove 12 are connected by the groove bottom wall 121, and the two groove side walls 122 of the groove 12 are both planar, so that the two groove side walls 122 are arranged in a V-shape, which is convenient for a worker to open the bellows 1, and is convenient for processing and manufacturing the groove 12.

The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.

Claims (10)

1. A corrugated tube, characterized in that the corrugated tube has an opening structure extending in an axial direction thereof, the opening structure having a radially inner side surface facing into the corrugated tube in a radial direction of the corrugated tube, the opening structure further having opening side wall surfaces arranged at intervals in a circumferential direction of the corrugated tube, the radially inner side surface and the opening side wall surfaces being connected by a first curved surface and/or a first inclined surface.

2. The bellows of claim 1 wherein the first curved surface is a cambered surface.

3. The bellows of claim 1 wherein the opening structure has a radially outer side surface facing outwardly of the bellows in the radial direction of the bellows, the radially outer side surface and the opening sidewall surface being connected by a second curved surface and/or a second inclined surface.

4. A bellows as claimed in claim 3 wherein the second curved surface is a cambered surface.

5. A bellows as claimed in any one of claims 1 to 4, wherein the bellows has a groove provided along an axial direction thereof, the opening structure being provided on a wall of the groove.

6. The corrugated tube according to claim 5, wherein the walls of the groove include groove side walls arranged at intervals in the circumferential direction of the corrugated tube and groove bottom walls connecting both the groove side walls, and the opening structure is provided on the groove bottom wall.

7. The bellows of claim 6 wherein the groove bottom wall has an outer groove bottom wall surface facing into the bellows, the radially inner side surface being disposed on the outer groove bottom wall surface, the minimum distance between the radially inner side surface and the central axis of the bellows being less than or equal to the inner diameter of the bellows at the trough position.

8. The bellows of claim 7 wherein the outer groove bottom wall forms the radially inner side, the outer groove bottom wall being coplanar with an inner side of the bellows at a trough location.

9. The bellows of claim 6 wherein the distance between the two groove sidewalls increases gradually in a radial direction of the bellows from the groove bottom wall toward the groove opening.

10. The bellows of claim 9 wherein both of the groove sidewalls have an inner groove wall surface facing into the groove, the inner groove wall surface being planar.