CN201212587Y

CN201212587Y - Conductor protection tube structure

Info

Publication number: CN201212587Y
Application number: CNU2008200742497U
Authority: CN
Inventors: 温芫鋐
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-31
Filing date: 2008-03-31
Publication date: 2009-03-25
Anticipated expiration: 2018-03-31

Abstract

The utility model relates to a wire protection tube structure which comprises an axle tube provided with a first end and a second end; the outer diameter of the first end of the axle tube is larger than that of the second end and slightly has a gourd shape, an accommodating part is concavely arranged at the first end of the axle tube, an inner edge extended inwards is formed at the position where the accommodating part is adjacent to the opening of the first end of the axle tube, the diameter of the accommodating part is larger than or equal to that of the second end of the axle tube, an accommodating groove is concavely arranged in the accommodating part, at least two rollers are arranged in the accommodating groove, an accommodating space is axially penetrated through the accommodating groove, the accommodating space is penetrated to the second end via the accommodating groove, so that the first end and the second end of the axle tube are communicated, and the distance of the rollers and the adjacent rollers is smaller than the diameter length of the accommodating space; the accommodating space is used for providing the wire to accommodate, the second end of the axle tube is assembled in the accommodating part at the first end of the other axle tube, a plurality of axle tubes are connected in series, and the wires are penetrated through the axle tubes. The utility model achieves better structural strength, is not easy to be loosened and can be firmly connected in series, therefore, the power for holding the wires by the rollers or the balls is improved, and the wires can be stably assembled in the axle tube.

Description

Structure of lead wire protective tube

Technical field

The utility model relates to a kind of bicycle brake lead cage walls, relate in particular to a kind ofly to have big pivoting angle, and lead do not need the coating plastic spring tube, and the structure of lead wire protective tube in can directly being installed in.

Background technique

Promotion along with the outdoor leisure activity; driving bicycle has been a kind of universal stress-relieving activity; and the design of bicycle also so thereupon constantly improves; no matter be the agonistic sports type; or the bicycle of leisure comfortable type; considerable progress is all arranged; wherein; the setting of Brake cable is for driving bicycle; be a vital ring; the Brake cable of bicycle was directly to be exposed to the car body outside in the past; causing exposes to the weather drenches with rain; even if being cable wire, Brake cable makes still weathering corrosion; therefore general dealer is in the flexible plastics cortex of Brake cable outer wrap one tool, utilize the plastics cortex to coat Brake cable reaching the effect of protection, and the flexible plastics cortex of tool more can cooperate Brake cable to be bent into various radians to adapt to the installing of bicycle.

Yet, Brake cable is only coated by the plastics cortex, the plastics cortex is through after the long-time Exposure to Sunlight, embrittlement is peeled off easily, loses original elasticity, particularly Brake cable and often cooperates the bicycle setting with various radian bendings, therefore the plastics cortex after the embrittlement can't bend and be the curve breakage, make Brake cable expose, cause the sand and dust chip to enter the plastics cortex, hinder the normal use of Brake cable on the contrary; Moreover, can fixed length because of only cutting of plastics cortex, therefore, can't carry out appropriateness adjustment if desire is adjusted Brake cable must together be changed together with the plastics cortex.

Therefore there is the dealer to propose improvement, No. 6250175 " the Pull Cable System " patent that please refer to U.S.'s patent of invention notification number, it is that a kind of Brake cable system comprises a lead, this lead provides the stress of conduction tension force; One elasticity of plastics pipe, this spring tube provides the applying lead; One protective tube coats this spring tube to bear the stress of pressure; This protective tube is to be engaged by a plurality of identical components to form, and form a continuous axial path to define the inner space, this member forms by link another member serial connection in abutting connection with an end, make this protective tube can form arc path, then this elasticity of plastics pipe is to be provided with and corresponding to the inner space of this path;

Existing protective tube one port footpath is less, the other end bore is bigger, utilize a more small-bore end to have the bigger end of another protective tube bore of tilted conical surface socket, with this contact socket moulding and ccontaining lead and elasticity of plastics pipe, because Brake cable is pullled by tension force, therefore this lead is to be subjected to pull and to produce displacement in protective tube, therefore existing structure is in the lead periphery elasticity of plastics pipe to be set, protective tube is not directly contacted with lead, to avoid influencing the lead action, so still need to be provided with the elasticity of plastics pipe, even this protective tube can be on demand and arc curvature folding; But the elasticity of plastics pipe uses embrittlement in protective tube with the passing of time easily, makes the elasticity of plastics pipe of embrittlement be embedded in the protective tube, influences the protection effect of protective tube, makes that more the lead action is blocked.And the elasticity of plastics pipe is to utilize plastic overmold to make outside lead, not only needs to increase the facility of production, and also increases the cost of making; Moreover existing structure is to utilize port footpath less, and the other end bore is bigger, and socket moulding protective tube whereby, but this kind structure is only utilized the setting of different bores significantly can't firmness joint, if tight serial connection not, then loosely easily can't reach covered effect.

At the existing problem points of above-mentioned existing structure, how to develop a kind of innovative design that has more desirable practicability, for using the ardent hope of Consumer institute, also be that relevant dealer must make great efforts target and the direction that research and development break through.

The model utility content

Technical problem underlying to be solved in the utility model is; overcome the above-mentioned defective that prior art exists; and provide a kind of structure of lead wire protective tube; it reaches preferable structural strength; be difficult for loose and can firmly be connected in series; improve the strength of roller or ball clamping lead whereby, lead firmly is installed in the central siphon.

The technological scheme that its technical problem that solves the utility model adopts is:

A kind of structure of lead wire protective tube, it is characterized in that, it comprises a central siphon, this central siphon is provided with first end and second end, wherein: this central siphon first end external diameter slightly is the cucurbit shape greater than second end, this central siphon first end is axially to be concaved with a holding part, the contiguous central siphon of this holding part first end opening place slightly extends internally to form an inner edge, the diameter of this holding part is more than or equal to this central siphon second end, be concaved with a containing groove in this holding part, be provided with at least two roll bodies in this containing groove, and this containing groove is axially to be equipped with a containing space, this containing space is to be through to second end by containing groove, this central siphon first end is communicated with second end, and the distance of this roll body and adjacent roll body is less than the containing space diameter length; This containing space supplies ccontaining lead, and central siphon second end is installed in the holding part of another central siphon first end, is connected in series several central siphons whereby, and lead is provided in central siphon.Utilize the roll body clamping lead of this central siphon, reach the effect of guardwire.

Aforesaid structure of lead wire protective tube, wherein contiguous this containing groove place of holding part is provided with a capping, and this capping is equipped with a through hole, is installed on the containing groove by this capping, to reach the effect of avoiding the roll body slippage.

Aforesaid structure of lead wire protective tube, wherein holding part is provided with an annular groove to position ring that should capping, for the installing capping.

Aforesaid structure of lead wire protective tube, wherein roll body is columned roller, or is the ball of spherical shape.

Aforesaid structure of lead wire protective tube wherein is provided with at least two elastic components in the containing groove, this elastic component is replaced roll body, to reach the effect of clamping lead.

Aforesaid structure of lead wire protective tube, the contiguous second end place annular recess of its middle stern tube is provided with a circular rabbet, by the setting of this circular rabbet, when making this second end be installed in first end of another central siphon, is had the nargin space of change angle.

Aforesaid structure of lead wire protective tube, wherein the profile of second end has the radian curved surface, when making this second end be installed in first end of another central siphon whereby, can pivot arbitrarily.

The profile of central siphon second end of the present utility model is to be the radian curved surface, the contiguous second end section of this central siphon is that ring-type is concaved with circular rabbet, make the contiguous second end section of this central siphon external diameter less, and this central siphon second end is the holding part less than first end, when then central siphon second end is serially connected with first end of another central siphon, by the radian curved profile of this second end and the circular rabbet of less external diameter, can obtain the pivot nargin space of angle in a big way, whereby to cooperate the required installing angle of lead; And the circular rabbet of this less external diameter in serial connection the time be utilize this inner edge slightly another central siphon first end of inlay card to increase stability, and this central siphon second end is to be placed in fully in another central siphon first end, reach preferable structural strength, be difficult for loose and can firmly be connected in series; Again, the distance of this roll body and adjacent roll body is less than containing space axial cross section diameter, then lead is to be subjected to the roll body clamping and not contact with containing space, because can pivoting to roll, this roll body do not influence the action of the pull of lead, therefore this lead periphery is not need coating plastic spring tube again, and can directly be installed in several the central siphons of serial connection, saves the cost of coating plastic spring tube, and central siphon is firm than the elasticity of plastics tubular construction, reaches preferable protection effect; Moreover roll body of the present utility model can be the aspect of roller or ball, and cooperates elastic component pushing and pressing roller or ball, improves the strength of roller or ball clamping lead whereby, and lead firmly is installed in the central siphon.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the part section decomposing schematic representation of the utility model structure of lead wire protective tube.

Fig. 2 is the part section assembling schematic representation of the utility model structure of lead wire protective tube.

Fig. 3 is the serial connection assembling generalized section of the utility model structure of lead wire protective tube.

Fig. 4 is the serial connection assembling schematic appearance of the utility model structure of lead wire protective tube.

Fig. 5 is the utility model second embodiment's a part section decomposing schematic representation.

Fig. 6 is the utility model the 3rd embodiment's a perspective diagram.

Fig. 7 is the utility model the 4th embodiment's a perspective diagram.

The number in the figure explanation:

1 central siphon, 11 first ends, 111 holding parts

112 containing grooves, 113 annular grooves, 114 grooves

115 inner edges, 12 second ends, 121 containing spaces

122 circular rabbets, 2 roll bodies, 21 rollers

22 balls, 3 cappings, 31 through holes

4 leads, 5 elastic components

Embodiment

The utility model is relevant a kind of structure of lead wire protective tube, sees also shown in first embodiment of Fig. 1 to Fig. 4, and it comprises a central siphon 1, and this central siphon 1 is provided with first end 11 and second end 12, wherein:

As shown in Figure 1, because stereogram can't be represented the structure of central siphon 1 inner installing, therefore central siphon 1 part is represented with section, as shown in Figure 2;

These central siphon 1 first end 11 external diameters are generally to be the cucurbit shape greater than second end, 12 external diameters, and this central siphon 1 contiguous this second end 12 is that annular recess is provided with a circular rabbet 122, and the profile of this second end 12 has the radian curved surface; This central siphon 1 first end 11 is to be axially arranged with a holding part 111, it is slightly to extend internally to form the inner edge 115 of a ring-type that this holding part 111 is adjacent to central siphon 1 first end 11 openings, the slightly larger in diameter of this holding part 111 in or equal central siphon 1 second end 12, these holding part 111 inner bottom surface are axially to be concaved with a containing groove that slightly is square 112, the basal area of this containing groove 112 is less than holding part 111 basal areas, and be to be provided with two roll bodies 2 in this containing groove 112, its roll body 2 of the utility model first embodiment is columned roller 21; These containing groove 112 inner bottom surface are axially to be equipped with a containing space 121, the axial cross section of this containing space 121 is long-pending less than containing groove 112 basal areas, this containing space 121 is through to second end 12 by the holding part 111 of first end 11, this central siphon 1 first end 11 is communicated with second end 12, and the distance of this roller 21 and adjacent roller 21 is less than containing space 121 axial cross section diameters; Contiguous containing groove 112 places, this holding part 111 bottom surfaces are equipped with an annular groove 113, and this annular groove 113 is embedded for a capping 3, and these capping 3 central authorities are equipped with a through hole 31, and this capping 3 is to be installed on the containing groove 112, avoid slippage with fixing roller 21;

Whereby, this containing space 121 is for lead 4 (as shown in Figure 3) installing, because the holding part 111 of this central siphon 1 first end 11, containing groove 112 is to be communicated with containing space 121, and the holding part 111 of this central siphon 1 first end 11 is greater than central siphon 1 second end 12, therefore as Fig. 3 and shown in Figure 4, central siphon 1 second end 12 axially can be connected in series and be installed in the holding part 111 of another central siphon 1 first end 11, cooperate lead 4 length polyphone to connect several the central siphons 1 of establishing suitable length whereby, because the profile of this central siphon 1 second end 12 is to be the radian curved surface, and these central siphon 1 contiguous second end, 12 parts are that ring-type is concaved with circular rabbet 122, when making this central siphon 1 second end 12 be installed in another central siphon 1 first end 11, be not subjected to holding part 111 restriction and the angle in a big way that can pivot arbitrarily, whereby to cooperate the required installing angle of lead 4; And holding part 111 contiguous first end, 11 openings of this central siphon 1 are to extend internally to form an inner edge 115, utilize this inner edge 115 to fasten second end 12 of another central siphon 1 slightly, and the central siphon 1 of feasible serial connection has more firm series arrangement and is difficult for being scattered;

Again; this roller 21 is less than containing space 121 axial cross section diameters with the distance of adjacent roller 21; when then lead 4 is installed in the containing space 121; lead 4 is subjected to roller 21 clampings and does not contact with containing space 121; because can pivoting to roll, this roller 21 do not influence the action of the pull of lead 4; therefore these lead 4 peripheries are not need the coating plastic spring tube; and can directly be installed in several the central siphons 1 of serial connection; and this capping 3 is to be installed on the containing groove 112 fixedly that roller 21 only can carry out scroll actions; and make lead 4 be arranged in central siphon 1 by the through hole 31 of this capping 3, reach the effect of guardwire 4.

Please refer to shown in second embodiment of Fig. 5, this containing groove 112 is to contact the larger area two ends with containing groove 112 in roller 21 to be provided with two grooves 114, and be respectively equipped with an elastic component 5 and a ball 22 in this two groove 114, this elastic component 5 is end faces of replacing ball 22 and pushing against roller 21 longer sides, whereby to improve the strength of these roller 21 clamping leads 4, reach the effect of tight clamping lead 4, and it is level and smooth with the surface of contact of roller 21 by ball 22, make roller 21 can smooth and easyly rotate, do not influence the action of lead 4 via the pull of lead 4.

Shown in the 3rd embodiment of Fig. 6; most of structure of this second embodiment is identical with first embodiment; below only at the difference explanation; the ball 22 that this roll body 2 of second embodiment of the present utility model is a spherical shape; this containing groove 112 is for 22 installings of four balls; and the area that this four ball 22 is surrounded is long-pending less than containing space 121 axial cross sections; and this containing groove 112 is provided with capping 3; this capping 3 is can locate the position of ball 22 and do not influence ball 22 action; but make ball 22 clamping leads 4 whereby; lead 4 is not contacted with central siphon 1 and the action of pull can be carried out; then lead 4 does not need other coating plastic spring tube, can reach the effect of guardwire 4.

Please refer to the 4th embodiment of Fig. 7, the 4th embodiment is arranged with a groove 114 respectively in contiguous balls 22 end faces of second embodiment's containing groove 112, this groove 114 is equiped with an elastic component 5 respectively, this elastic component 5 is to replace ball 22, to improve the strength of ball 22 clamping leads 4, reach the effect of tight clamping lead 4 whereby.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

In sum, the utility model is on structural design, use practicability and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also has unprecedented innovation structure, have novelty, creativeness, practicability, the regulation that meets relevant novel patent requirement is so mention application in accordance with the law.

Claims

1. a structure of lead wire protective tube is characterized in that, it comprises a central siphon, and this central siphon is provided with first end and second end, wherein:

This central siphon first end external diameter slightly is the cucurbit shape greater than second end, this central siphon first end is axially to be concaved with a holding part, the contiguous central siphon of this holding part first end opening place slightly extends internally to form an inner edge, the diameter of this holding part is more than or equal to this central siphon second end, be concaved with a containing groove in this holding part, be provided with at least two roll bodies in this containing groove, and this containing groove is axially to be equipped with a containing space, this containing space is to be through to second end by containing groove, this central siphon first end is communicated with second end, and the distance of this roll body and adjacent roll body is less than the containing space diameter length;

This containing space supplies ccontaining lead, and central siphon second end is installed in the holding part of another central siphon first end, is connected in series several central siphons whereby, and lead is provided in central siphon.

2. structure of lead wire protective tube according to claim 1 is characterized in that: contiguous this containing groove place of described holding part is provided with a capping, and this capping is equipped with a through hole, is installed on the containing groove by this capping.

3. structure of lead wire protective tube according to claim 2 is characterized in that: described holding part is provided with an annular groove to position ring that should capping, for the installing capping.

4. structure of lead wire protective tube according to claim 1 is characterized in that: described roll body is columned roller, or is the ball of spherical shape.

5. structure of lead wire protective tube according to claim 1 is characterized in that: be provided with at least two elastic components in the described containing groove, this elastic component is replaced roll body.

6. structure of lead wire protective tube according to claim 1 is characterized in that: the contiguous second end place annular recess of described central siphon is provided with a circular rabbet.

7. structure of lead wire protective tube according to claim 1 is characterized in that: the profile of described second end has the radian curved surface.