CN213279006U - Double-wall corrugated pipe and line system - Google Patents

Abstract

The utility model relates to a double-walled bellows and line system, double-walled bellows are used for the cover to establish the electric wire, the double-walled bellows includes that inner tube and cover are established the outer tube of inner tube, seted up on the inner tube and run through the incision of inner tube lateral wall, the incision supplies the electric wire is put into the inner tube, the outer tube has been seted up and has been cup jointed the installing port of inner tube, the outer tube passes through the installing port cover is located the inner tube. The utility model provides a double-walled bellows, the incision and the installing port that the outer tube was seted up through the inner tube for the electric wire is very easily put into the inner tube not only, and the assembly and the dismantlement between outer tube and the inner tube of being convenient for.

Description

Double-wall corrugated pipe and line system

Technical Field

The utility model relates to a tubular product technical field especially relates to a double-walled bellows and circuit system.

Background

The double-wall corrugated pipe has the characteristics of light weight, corrosion resistance, aging resistance, high product strength, good bending property, convenience in construction and installation and the like, and is widely applied to industrial equipment.

The existing double-wall corrugated pipe can be embedded with an electric wire and used for protecting the electric wire, so that the electric wire is not easy to damage or break in a multi-bending use state. However, if the wires in the closed loop need to be sleeved, the double-wall corrugated pipe needs to be provided with a corresponding mounting opening, and the mounting opening is sealed again in a manner of winding adhesive tapes, so that foreign matters are prevented from entering the double-wall corrugated pipe. The process is not only complicated but also affects the assembly efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a double-wall corrugated pipe and a wiring system.

A double-wall corrugated pipe is used for sleeving an electric wire and comprises an inner pipe and an outer pipe sleeved on the inner pipe, wherein a notch penetrating through the side wall of the inner pipe is formed in the inner pipe, the electric wire is placed into the inner pipe through the notch, a mounting opening sleeved with the inner pipe is formed in the outer pipe, and the outer pipe is sleeved on the inner pipe through the mounting opening.

Further, the notch and the mounting opening are arranged in a staggered mode, and the outer pipe covers the notch.

Further, the mounting opening penetrates through the side wall of the outer pipe in the axial direction.

Further, the central angle range corresponding to the mounting opening is 45-90 degrees.

Further, both sides of the incision are attached to each other, and the electric wire is enclosed in the lumen of the inner tube.

Further, the inner pipe extends along the radial direction and forms an abutting convex edge, two sides of the mounting opening abut against the abutting convex edge, and the joint between the outer pipe and the inner pipe is flush.

Further, the central axis of the abutting convex edge and the notch are arranged on two opposite sides of the inner pipe; and/or the presence of a catalyst in the reaction mixture,

and the central angle corresponding to the abutting convex edge is equal to the central angle corresponding to the mounting opening.

Furthermore, the outer surface of the outer pipe is provided with corrugations; and/or the presence of a catalyst in the reaction mixture,

the outer surface of the inner pipe is provided with corrugations.

Furthermore, reinforcing ribs are arranged at the grooves among the corrugations, and the reinforcing ribs are annularly arranged on the outer pipe and/or the inner pipe.

The utility model also provides a line system, line system includes electric wire and double-walled bellows, the double-walled bellows is as above-mentioned arbitrary one the double-walled bellows, the double-walled bellows cover is established the electric wire.

The utility model provides a double-walled bellows, the incision and the installing port that the outer tube was seted up through the inner tube for the electric wire is very easily put into the inner tube not only, and the assembly and the dismantlement between outer tube and the inner tube of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of a double-wall corrugated pipe according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the double-walled corrugated pipe of FIG. 1 taken along line A-A;

FIG. 3 is a schematic structural view of the double-walled bellows of FIG. 1 from another perspective;

FIG. 4 is a schematic structural view of the double-wall corrugated pipe shown in FIG. 1 before an installation opening is formed in the outer pipe;

FIG. 5 is a schematic view of the outer tube of FIG. 4 from another perspective;

FIG. 6 is a schematic structural view of the outer tube shown in FIG. 4 after a mounting opening is formed therein;

FIG. 7 is a schematic view of the outer tube of FIG. 6 from another perspective;

FIG. 8 is a schematic view of the inner tube of the double-walled corrugated tube of FIG. 1;

fig. 9 is a schematic view of the inner tube shown in fig. 8 from another perspective.

Description of the element reference numerals

100. A double-walled bellows; 10. an outer tube; 11. reinforcing ribs; 12. an installation port; 13. positioning a groove; 20. an inner tube; 21. cutting; 22. abutting the convex edge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The utility model provides a double-walled bellows 100 for the electric wire and protection electric wire are established to the cover, make the electric wire difficult damage or fracture under user state such as buckle many times, and then can make the line system steady operation who is applied to this electric wire.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a double-wall corrugated pipe 100 according to an embodiment of the present invention; FIG. 2 is a schematic cross-sectional view of the double-walled bellows 100 of FIG. 1 taken along line A-A; fig. 3 is a schematic view of the double-walled bellows 100 of fig. 1 from another perspective.

The double-wall corrugated pipe 100 includes an outer pipe 10 and an inner pipe 20, wherein the outer pipe 10 is sleeved on the inner pipe 20; the inner tube 20 is used to house the electrical wires. The outer tube 10 and the inner tube 20 are sleeved with each other to protect the electric wires better.

In one embodiment, the side wall of the outer tube 10 is corrugated to facilitate bending of the outer tube 10. And/or, the side wall of the inner tube 20 is provided with corrugations to facilitate bending of the inner tube 20. It is understood that in other embodiments, any one or more of the outer tube 10 or the inner tube 20 may be provided with a smooth sidewall regardless of the ease of bending of the outer tube 10 or the inner tube 20.

Further, the outer tube 10 is aligned with the corrugations of the inner tube 20.

In one embodiment, the grooves between the plurality of corrugations are provided with the reinforcing ribs 11, and the reinforcing ribs 11 are annularly arranged on the outer pipe 10 and/or the inner pipe 20, regardless of the outer pipe 10 or the inner pipe 20. With such an arrangement, the impact strength of the outer pipe 10 and/or the inner pipe 20 can be increased accordingly.

The double-wall corrugated pipe 100 of the prior art can be embedded with an electric wire (not shown) and used for protecting the electric wire, so that the electric wire is not easily damaged or broken in a use state of being bent for many times. However, if the wires in the closed circuit need to be sheathed, the double-wall corrugated pipe 100 is provided with the corresponding mounting opening 12, and the mounting opening 12 is sealed again by winding adhesive tape to prevent foreign matters from entering the double-wall corrugated pipe 100. The process is not only complicated but also affects the assembly efficiency.

Referring to fig. 4 to 9, fig. 4 is a schematic structural view of the double-wall corrugated pipe 100 shown in fig. 1 before the pipe 10 is provided with the installation opening 12; FIG. 5 is a schematic view of the outer tube 10 shown in FIG. 4 from another perspective; FIG. 6 is a schematic structural view of the outer tube 10 shown in FIG. 4 after the installation opening 12 is formed; FIG. 7 is a schematic view of the outer tube 10 shown in FIG. 6 from another perspective; FIG. 8 is a schematic view of the construction of inner tube 20 of double-walled bellows 100 shown in FIG. 1; fig. 9 is a schematic structural view of the inner tube 20 shown in fig. 8 from another perspective.

In order to improve the above problem, in an embodiment of the present invention, as shown in fig. 8 and 9, a notch 21 through which the power supply line penetrates is formed on a side wall of the inner tube 20; the outer tube 10 is provided with a mounting opening 12, and the outer tube 10 is sleeved to the inner tube 20 through the mounting opening 12, so that the electric wire is easily placed into the inner tube 20, and the assembly and disassembly between the outer tube 10 and the inner tube 20 are convenient.

Specifically, the inner tube 20 is provided with a cut 21 penetrating through the sidewall of the inner tube 20, and the cut 21 allows the power supply line to be inserted into the inner tube 20. In the present embodiment, the slit 21 is opened in the axial direction of the inner tube 20 and is parallel to the center line of the inner tube 20. The arrangement is such that the cut-outs 21 facilitate the flat placement of the wire in the inner tube 20. It will be appreciated that in other embodiments, such as those not considering the ease of installation of the wires, the cut-outs 21 may be formed in other shapes, such as a wavy line or a spiral, as long as the insertion of the wires is achieved.

In one embodiment, the two sides of the slit 21 are attached to each other and the wire is enclosed in the lumen of the inner tube 20. Specifically, the inner tube 20 is provided with a slit 21 having a narrow width along the axial direction, so that the wall surfaces on both sides of the slit 21 can still abut against each other. This arrangement allows the wire to be placed into the inner tube 20 by hand or by external tools and does not allow impurities to easily fall into the lumen of the inner tube 20.

It will be appreciated that in other embodiments, if the outer tube 10 can be closely fitted over and cover the cut 21, the cut 21 can be widened accordingly, as long as particles such as impurities can be prevented from entering the lumen of the inner tube 20.

As shown in fig. 6 and 7, the side wall of the outer tube 10 is correspondingly provided with an installation opening 12, and the outer tube 10 is sleeved on the inner tube 20 through the installation opening 12; the mounting port 12 is used for placing the inner tube 20 into the lumen of the outer tube 10. Specifically, the central angle range corresponding to the mounting opening 12 is 45 ° to 90 °, so that the inner tube 20 is fitted into the lumen of the outer tube 10. It is understood that, in other embodiments, the mounting opening 12 may be set to other ranges between 0 ° and 180 °, as long as the inner tube 20 can be inserted into the lumen of the outer tube 10 by hand or by an external tool, and the outer tube 10 is not easily separated from the inner tube 20.

As shown in fig. 4 to 5, when the outer tube 10 is not opened with the mounting opening 12, the wall surface of the outer tube 10 is recessed inward and forms a positioning groove 13, and the positioning groove 13 is used for confirming the position and the opening angle of the mounting opening 12 of the outer tube 10. Preferably, the number of the positioning grooves 13 is two, and the central angle range corresponding to the side wall of the two positioning grooves 13 which is farthest away is 45-90 °.

Further, the mounting port 12 axially penetrates the side wall of the outer tube 10. So configured, the inner tube 20 can be easily placed into the lumen of the outer tube 10.

In one embodiment, the inner diameter of the inner tube 20 is 3/4-14/15 of the inner diameter of the outer tube 10, so that the inner tube 20 is as easy to install as possible and as close as possible to the outer tube 10.

In one embodiment, the cut 21 is offset from the mounting opening 12, and the outer tube 10 covers the cut 21. So set up, not only make outer tube 10 be convenient for the cover establish inner tube 20, can avoid outside foreign particles to get into the lumen of inner tube 20 moreover.

In one embodiment, as shown in fig. 1 to 3, the inner tube 20 extends in the radial direction and forms an abutment ledge 22, and both sides of the mounting opening 12 abut against the abutment ledge 22. The abutting ledge 22 is used for abutting the two sides of the mounting opening 12 of the outer pipe 10 against the abutting ledge 22, so that the joint between the outer pipe 10 and the inner pipe 20 is flush. This is so arranged that the outer circumferential surfaces of the double-walled corrugated pipe 100 are flush, thereby preventing the outer circumferential surfaces of the protruding portions of the double-walled corrugated pipe 100 from being worn or collided.

In one embodiment, the cut 21 is offset from the mounting opening 12, and the outer tube 10 covers the cut 21. It is so arranged that the side wall of the outer tube 10 covers the cut 21 of the inner tube 20, thereby avoiding the entry of foreign particles into the lumen of the inner tube 20.

Further, the central axis of the abutment flange 22 and the notch 21 are disposed on opposite sides of the inner tube 20, i.e., the central axis of the abutment flange 22 and the notch 21 are located at 180 °. When the outer tube 10 abuts against the abutting convex edge 22 of the inner tube 20 through the mounting opening 12, the mounting opening 12 abutting against the abutting convex platform is arranged at a position relatively far away from the notch 21; if it is desired to make the mounting opening 12 correspond to the cut-out 21, the outer tube 10 is driven approximately 180 °. This is so arranged that the side wall of the outer tube 10 covers the cut 21 of the inner tube 20, thereby preventing foreign particles from entering the lumen of the inner tube 20. It is understood that in other embodiments, the central axes of the notch 21 and the abutting flange 22 may be arranged at other angles, such as 90 ° or 135 °, as long as the installation opening 12 and the notch 21 are arranged in a staggered manner.

In one embodiment, the material of the outer tube 10 includes one of metal or plastic.

The utility model provides a double-walled bellows 100, the installing port 12 that the incision 21 and the outer tube 10 offered through inner tube 20 were seted up for the electric wire is not only very easily put into inner tube 20, and is convenient for assembly and dismantlement between outer tube 10 and the inner tube 20.

The utility model discloses still provide a line system (not shown), including foretell double-walled bellows 100 and electric wire, the electric wire is established to double-walled bellows 100 cover.

Of course, the above-described wiring system can be applied to wiring systems in various industries, such as automobile wiring systems.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A double-wall corrugated pipe is used for sleeving electric wires and comprises an inner pipe (20) and an outer pipe (10) sleeved on the inner pipe (20), and is characterized in that a notch (21) penetrating through the side wall of the inner pipe (20) is formed in the inner pipe (20), the electric wires are placed into the inner pipe (20) through the notch (21), a mounting opening (12) sleeved on the inner pipe (20) is formed in the outer pipe (10), and the outer pipe (10) is sleeved on the inner pipe (20) through the mounting opening (12).

2. The double-walled corrugated pipe according to claim 1, characterized in that the cut-out (21) is arranged offset from the mounting opening (12) and covers the cut-out (21) with the outer pipe (10).

3. The double-walled corrugated pipe according to claim 1, characterized in that the mounting opening (12) axially penetrates a side wall of the outer pipe (10).

4. Double-walled corrugated pipe according to claim 1, wherein the mounting opening (12) corresponds to a central angle in the range of 45 ° to 90 °.

5. The double-walled corrugated pipe according to claim 1, wherein both sides of the slit (21) are attached to each other and the wire is wrapped in the lumen of the inner pipe (20).

6. The double-walled corrugated pipe according to claim 1, wherein the inner pipe (20) extends radially and forms an abutment ledge (22), both sides of the mounting opening (12) abut against the abutment ledge (22), and a junction between the outer pipe (10) and the inner pipe (20) is flush.

7. The double-walled corrugated pipe according to claim 6, wherein the abutment ledge (22) and the notch (21) are provided on opposite sides of the inner pipe (20) along a central axis thereof; and/or the presence of a catalyst in the reaction mixture,

the central angle corresponding to the abutting convex edge (22) is equal to the central angle corresponding to the mounting opening (12).

8. Double-walled corrugated pipe according to claim 1, characterized in that the outer surface of the outer pipe (10) is provided with corrugations; and/or the presence of a catalyst in the reaction mixture,

the outer surface of the inner pipe (20) is provided with ripples.

9. Double-walled corrugated pipe according to claim 7, wherein stiffening ribs (11) are provided at the grooves between the corrugations, said stiffening ribs (11) being provided around the outer pipe (10) and/or the inner pipe (20).

10. A wiring system comprising an electric wire and a double-walled corrugated pipe according to any one of claims 1 to 9, wherein the electric wire is sheathed by the double-walled corrugated pipe.

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