CN101532533B

CN101532533B - Structure of lead wire protective tube

Info

Publication number: CN101532533B
Application number: CN2008100524069A
Authority: CN
Inventors: 温芫鋐
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-11
Filing date: 2008-03-11
Publication date: 2011-06-01
Anticipated expiration: 2028-03-11
Also published as: CN101532533A; WO2009111923A1

Abstract

The invention provides a structure of a lead wire protective tube, which includes a shaft tube, the shaft tube is provided with a first end and a second end, wherein the diameter of the first end of the shaft tube is greater than that of the second end, the first end of the shaft tube is axially provided with a containing part, the inner bottom surface of the containing part is axially and concavely provided with a containing groove which is internally provided with at least two rolling bodies, the inner bottom surface of the containing groove is axially provided with a containing space in a penetrating way, the containing space penetrates to the second end from the containing part at the first end so that the first end and the second end of the shaft tube are communicated with each other, the distance from the rolling body to the neighboring body is less than the axial section diameter of the containing space; the bottom surface of the containing part near the containing groove is provided with a sealing cover, and the center of the sealing cover is provided with a through hole in the penetrating way; and with the structure, the lead wire can be protected by being arranged in the shaft tube and does not need to be coated with the plastic tube.

Description

Structure of lead wire protective tube

Technical field

The present invention relates to a kind of bicycle lead wire protective tube, relate in particular to and a kind ofly 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

At present; promotion along with the outdoor leisure activity; driving bicycle now has been a kind of universal stress-relieving activity; and the design of vehicle 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 for directly being exposed to the car body outside in the past; causing exposes to the weather drenches with rain, even if Brake cable be the cable wire manufacturing still can the 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 are for the applying lead; One protective tube coats this spring tube to bear the stress of pressure; This protective tube is to be engaged by several identical components to form, and form a continuous axial path to define the inner space, this member is to form by link another member serial connection in abutting connection with an end, make this protective tube can be to form arc path, then this elasticity of plastics pipe be to be provided with and corresponding to the inner space of this path;

Existing protective tube is to utilize the one port footpath 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 is 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 manufacture cost; 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 obviously and can't firmness joint, if tight serial connection not, then loosely easily can't reach covered effect.

At the existing problem of above-mentioned existing structure, how to develop a kind of innovation that has more desirable practicability, real in 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.

Summary of the invention

Technical problem underlying to be solved by this invention is; overcome the above-mentioned defective that prior art exists; and provide a kind of structure of lead wire protective tube; it does not need coating plastic spring tube again; not only this central siphon provides the more firm protection effect of structure; and save the processing procedure of coating plastic spring tube, save cost.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of structure of lead wire protective tube, it is characterized in that, comprise: a central siphon, this central siphon is to be provided with first end and second end, wherein: this central siphon first end is concaved with a holding part, 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 two roll bodies in this containing groove, and this containing groove is 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 is ccontaining for lead, and central siphon second end can be installed in the holding part of another central siphon first end, can be connected in series several central siphons whereby, and lead is provided in central siphon, utilizes the roll body clamping lead of this central siphon, reaches the effect of guardwire.

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

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

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, to have 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 invention has the beneficial effects as follows that it does not need coating plastic spring tube again, not only this central siphon provides the more firm protection effect of structure, and saves the processing procedure of coating plastic spring tube, saves cost.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

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

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

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

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

Fig. 5 is the part section decomposing schematic representation of second embodiment of the invention.

Fig. 6 is the perspective diagram of third embodiment of the invention.

Fig. 7 is the perspective diagram of fourth embodiment of the invention.

The number in the figure explanation:

1 central siphon, 11 first ends, 111 holding parts

112 containing grooves, 113 annular grooves, 114 grooves

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 present invention 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-central siphon 1 that this central siphon 1 is to be 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;

The profile of this central siphon 1 generally is column, and the diameter of this first end 11 is greater than second end 12, and these central siphon 1 contiguous these second end, 12 annular recess are 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, the diameter of this holding part 111 is to be slightly larger than or to 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 provided with two roll bodies 2 in this containing groove 112, its roll body 2 of first embodiment of the invention 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 to be less than containing groove 112 basal areas, this containing space 121 is that the holding part 111 by first end 11 is through to second end 12, 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 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 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, 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;

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 to be subjected to roller 21 clampings and 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 the plural central siphon 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 the second embodiment of the present invention 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 can be located the position of ball 22 and do not influenced ball 22 actions; but make ball 22 clamping leads 4 whereby; lead 4 is not contacted with central siphon 1 and can carry out the action of pull, 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 to be equiped with an elastic component 5 respectively, this elastic component 5 is replaced 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 invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.

In sum, the present invention 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 patent of invention important document is so mention application in accordance with the law.

Claims

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

This central siphon first end is concaved with a holding part, 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 two roll bodies in this containing groove, and this containing groove is 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 is ccontaining for lead, and central siphon second end can be installed in the holding part of another central siphon first end, can be connected in series several central siphons whereby, and lead is provided in central siphon, utilizes the roll body clamping lead of this central siphon.

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

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

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, with the clamping lead.

6. structure of lead wire protective tube according to claim 1; it is characterized in that: the contiguous second end place annular recess of described central siphon 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, to have the nargin space of change angle.

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, when making this second end be installed in first end of another central siphon whereby, can pivot arbitrarily.