CN102537019B

CN102537019B - Conducting wire sheath

Info

Publication number: CN102537019B
Application number: CN201010589353.1A
Authority: CN
Inventors: 温芫鋐
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2014-09-17
Anticipated expiration: 2030-12-15
Also published as: CN102537019A

Abstract

A conducting wire sheath comprises a plurality of connected pipes, and each connected pipe comprises: a metal outer pipe which is provided with a head section, an extending section, an abutting section, and a tail section, wherein the internal diameter of the extending section is the same as the internal diameter of the head section, and the internal diameter of the abutting section is larger than the internal diameter of the extending section; a plastic inner pipe which is provided with a fixing section and a protecting section extending from the fixing section, wherein the external diameter of the fixing section corresponds to the internal diameter of the abutting section, and the external diameter of the protecting section corresponds to the internal diameter of the extending section. The plastic inner pipe is inserted into the metal outer pipe from the tail section, and the fixing section is abutted against the abutting section; wherein the tail section of each connected pipe is used for the insertion of a head section of another connected pipe; wherein the axial length of the fixing section is less than the axial length of the abutting section, and buffer space is formed in the abutting section. The beneficial effects of the invention are that the cost is saved; high convenience is provided for production and application; and the conducting wire sheath has strong applicability.

Description

Wire sheath

Technical field

The invention relates to a kind of sheath, espespecially a kind of cost, production and application convenience is high, applicability is strong Wire sheath saved.

Background technique

Wire sheath is for being sheathed on outside bicycle brake line or other similar ropes, and then can produce protection rope or user's using effect.

In existing Wire sheath, can be with reference to described in 6,250, No. 175 patents of U.S. US, that a plurality of bodys are supported to series connection mutually, for plastic pipe and the metallic cable of brake wire, place wherein, yet this kind of brake wire is easily subject to the impact of residualinternal stress in plastic pipe and crooked arbitrarily when using, be difficult to bend to desirable position for user, in addition, plastic pipe also easily hinders the start of metallic cable and Wire sheath because of the chip that material aging peels off, and reduces using effect.

Described in 5,899, No. 425 patents of U.S. US, be to be directly placed through in Wire sheath for rope, yet, if during Wire sheath fabricated metals, metallic cable will with Wire sheath direct friction, easily when using, mutually fasten or produce noise.

In other similar structures, again can be with reference to U.S. US 6,502, No. 496 Patent Cases are that Wire sheath is divided into internal layer with outer, can with diverse ways and material, be made respectively, to avoid outer incised wound or to destroy the wire being placed in internal layer, yet, between this skin and this internal layer, need to be provided with bonding material, to avoid outer separated with internal layer, the difficulty of producing with assembling is improved.

In addition, there is U.S. US 6,648, No. 376 Patent Cases are provided with lining in Wire sheath, yet, lining in this patent only part is resisted against Wire sheath, has the problem separated with Wire sheath that be easier to, simultaneously, this lining will fasten mutually with adjacent Wire sheath, and the bendable angle of this Wire sheath is restricted.

Summary of the invention

The object of the invention is to improve the deficiencies in the prior art, a kind of cost, production and application convenience is high, applicability is strong Wire sheath saved is provided.

For achieving the above object, the present invention is by the following technical solutions:

A kind of Wire sheath, it comprises several adapters, respectively this adapter has a first end and one second end, respectively this adapter comprises: a metal outer pipe, this metal outer pipe from described first end to described the second end be sequentially formed with a section, extension, against Duan Yuyi rear, the internal diameter of this extension is concordant with the internal diameter of this section, should have an internal diameter that is greater than this extension against section, and the interior of this rear without leave should be against section to this second end flaring; One plastic cement inner tube, there is a holding part and a protection section of extending from this holding part, the external diameter of this holding part is corresponding with the described internal diameter against section, the external diameter of this protection section is corresponding with the internal diameter of described head section and described extension, this plastic cement inner tube is inserted in described metal outer pipe from described rear, makes described holding part be resisted against described against section; Wherein, the rear of taking over described in each is pegged graft for the head section of another adapter; Wherein, the axial length of described holding part is less than the described axial length against section, makes this in section, be formed with a buffer space.

The free end of described protection section extends to described first end.

Described against the second end flaring described in the outer radial of section and described rear.

The outer surface of described protection section is smooth in the internal surface of described extension and described head section.

The free end convergent of this protection section of the outer radial of described protection section.

Describedly between section and described extension, be formed with a ladder surface, described holding part is resisted against this ladder surface.

Beneficial effect of the present invention is: save cost, production and application convenience is high, and applicability is strong.

Below by accompanying drawing, the invention will be further described.

Accompanying drawing explanation

Fig. 1 is stereogram of the present invention.

Fig. 2 is the stereogram of single adapter in the present invention.

Fig. 3 is the three-dimensional exploded view of single adapter in the present invention.

Fig. 4 is the sectional drawing of single adapter in the present invention.

Fig. 5 is sectional drawing of the present invention.

Fig. 6 is the stereogram of single adapter in another embodiment of the present invention.

Fig. 7 is the three-dimensional exploded view of single adapter in another embodiment of the present invention.

Fig. 8 is the sectional drawing of single adapter in another embodiment of the present invention.

Fig. 9 is the sectional drawing of another embodiment of the present invention.

Figure 10 is use schematic diagram of the present invention.

[primary clustering label declaration]

1: metallic cable

2: metal outer pipe

21,21 ': head section

22: extension

23: against section 24: rear

25: ladder surface

3: plastic cement inner tube

31: holding part

32: protection section.

Embodiment

Below only with embodiment, the enforcement aspect that the present invention is possible is described, so, not in order to limit the category of institute of the present invention wish protection, chats in advance bright.

Please refer to Fig. 1, the invention provides a kind of Wire sheath, is before and after taking over several, to support serial connection to form, and for a metallic cable 1, wears wherein, and respectively this adapter has a first end and one second end.

Please refer to Fig. 2 to Fig. 4, respectively this adapter includes a metal outer pipe 2 and a plastic cement inner tube 3, and this metal outer pipe 2 can copper, titanium or other various metal or alloy are made, wherein, for processing characteristics and cost of production are considered, with aluminum or aluminum alloy for better.

This metal outer pipe 2 is sequentially formed with a section 21, an extension 22, against section 23 and a rear 24 from first end to the second end, this first end convergent of the outer radial of this section 21, this extension 22, this external diameter against section 23 and this rear 24 be cylindric second end that extends to, wherein, in other possibilities of the present invention embodiment, this section also may be formed with annular fin, this section 21 is concordant with the internal diameter of this extension 22, that is this section 21 is smoothly extended with the internal diameter of this extension 22, should there is an internal diameter that is greater than this extension 22 against section 23, and should be formed with a ladder surface 25 against between section 23 and this extension 22, the internal diameter of this rear 24 is from being somebody's turn to do against section 23 to this second end flaring, wherein, in the present embodiment, this section 21 has the same internal diameter of phase of equality with this extension 22, in other possible embodiments of the present invention, the interior radially first end that also can make this extension 22 and this section 21 is convergent slightly, again, also can make this interior this extension 22 without leave against section 23 to these rear 24 flarings.

This plastic cement inner tube 3 has a holding part 31 and a protection section 32 of extending from this holding part, the external diameter of this holding part 31 was corresponding against the internal diameter of section 23 with this, the external diameter of this protection section 31 is corresponding with the internal diameter of this section 21 and this extension 22, make this plastic cement inner tube 3 be inserted in this metal outer pipe 2 from this rear 24, make this holding part 31 be resisted against this against section 23 and this ladder surface 25, preferably, can make the outer surface of this protection section 32 smooth in the internal surface of this extension 22 and this section 21, and can make the free end of this protection section 32 extend to first end, and the outer surface of this protection section 32 and the internal surface of this extension 22 and this section 21 are coincide, yet, also can make the free end convergent of this protection section 32 of outer radial of this protection section 32, this plastic cement inner tube 3 is easy to for being inserted in this metal outer pipe 2.In other possible embodiments of the present invention, if should be against interior this extension 22 without leave of section 23 to these rear 24 flarings, and make this metal outer pipe not be formed with ladder surface, this holding part 31 also can be resisted against merely this against section 23.

Above-mentioned provided adapter is provided, please refer to Fig. 5, respectively the rear 24 of this adapter can be pegged graft for the head section 21 ' of another adapter, plastic cement inner tube 3 is closely installed in metal outer pipe 2, and make a plurality of adapter serial connections form Wire sheath, for metallic cable 1, be arranged in each plastic cement inner tube, in other possible embodiments of the present invention, when section is formed with annular protruding rib right overhead, this metal outer pipe can separately comprise the section of fastening, with this section of fastening, from this rear 24, extend, this section of fastening also has the internal diameter of a convergent, with so that the head section 21 ' of another adapter keeps being plugged in rear 24.By this, the present invention can directly be arranged in Wire sheath for metallic cable 1, and do not need in addition metallic cable 1 to be arranged in plastic pipe, can save the cost of production of used brake wire and alleviate the weight of brake wire, more particularly, before using brake wire, do not need extra cutting plastic pipe, or metallic cable is penetrated in plastic pipe, can improve and use and the convenience that brake wire is installed, in addition, brake wire used herein does not need to be additionally inserted in plastic pipe, also the residualinternal stress that can avoid metallic cable to be subject to plastic pipe affects and bending, can be crooked arbitrarily while making assembling metal rope of the present invention for use, be available for users to bending and be held in fixing position, remove the impact of plastic pipe residualinternal stress, and there is good using effect.

In addition, it is mutually to support that of the present invention each taken over, and does not continue into the pipeline of sealing, when foreign matter surprisingly enters, while infiltrating contacting metal rope as rainwater, can between taking over, any two flow out for rainwater, and can promptly rainwater be discharged, there is good draining using effect.

Please refer to Fig. 6 to Fig. 9, in another embodiment of the present invention, the outer surface of this metal outer pipe 2 also can have and is different from columniform other external forms, more particularly, the external diameter of this section 21 is to first end convergent, the outer surface of this extension 22 is equipped with arc groove, this external diameter against section 23 and this rear 24 is to the second end flaring, can make the thickness reduction of this extension 22 by this, reduce weight of the present invention, and this is improved against section 23 and the thickness of this rear 24, and improve structural strength of the present invention, there is preferably using effect.

Wherein, please refer to Figure 10, the axial length of this holding part 31 is less than this against the axial length of section 23, this plastic cement inner tube 3 is inserted in after this metal outer pipe 2, should in section 23, be formed with a buffer space, can be as shown in figure 10, when two-phase adjacent pipe inclines towards each other, this buffer space can enter for the head section 21 ' of another adapter, uses and improves permissible angle of inclination between two-phase adjacent pipe.

In sum, the present invention can remove the impact of plastic pipe in used rope when for user, avoids the present invention and metallic cable crooked arbitrarily, has good using effect, real in having progressive effect.

Claims

1. a Wire sheath, it comprises several takes over, and respectively this adapter has a first end and one second end, and respectively this adapter comprises a metal outer pipe, this metal outer pipe from described first end to described the second end be sequentially formed with a section, extension, against Duan Yuyi rear, it is characterized in that:

The internal diameter of this extension is concordant with the internal diameter of this section, should have an internal diameter that is greater than this extension against section, and the interior of this rear without leave should be against section to this second end flaring;

Respectively this adapter more comprises a plastic cement inner tube, respectively this plastic cement inner tube has a holding part and a protection section of extending from this holding part, the external diameter of this holding part is corresponding with the described internal diameter against section, the external diameter of this protection section is corresponding with the internal diameter of described head section and described extension, this plastic cement inner tube is inserted in described metal outer pipe from described rear, makes described holding part be resisted against described against section;

Wherein, the rear of taking over described in each is pegged graft for the head section of another adapter;

Wherein, the axial length of described holding part is less than the described axial length against section, makes this in section, be formed with a buffer space.

2. Wire sheath as claimed in claim 1, is characterized in that, the free end of described protection section extends to described first end.

3. Wire sheath as claimed in claim 1, is characterized in that, described against the second end flaring described in the outer radial of section and described rear.

4. Wire sheath as claimed in claim 2, is characterized in that, described against the second end flaring described in the outer radial of section and described rear.

5. the Wire sheath as described in any one in claim 1 to 4, is characterized in that, the outer surface of described protection section is smooth in the internal surface of described extension and described head section.

6. the Wire sheath as described in any one in claim 1 to 4, is characterized in that, the free end convergent of this protection section of the outer radial of described protection section.

7. the Wire sheath as described in any one in claim 1 to 4, is characterized in that, describedly between section and described extension, is formed with a ladder surface, and described holding part is resisted against this ladder surface.

8. Wire sheath as claimed in claim 5, is characterized in that, describedly between section and described extension, is formed with a ladder surface, and described holding part is resisted against this ladder surface.

9. Wire sheath as claimed in claim 6, is characterized in that, describedly between section and described extension, is formed with a ladder surface, and described holding part is resisted against this ladder surface.