TW201945238A - Inner sleeve structure of five-way pipe capable of achieving multi-component pressing and concentric alignment effects - Google Patents

Abstract

The present invention provides an inner sleeve structure of a five-way pipe, which mainly includes a pipe body, a first pressing member, a second pressing member, a first inner sleeve, a second inner sleeve, two bearing members and two dust-proof side covers. Through an innovative unique design, a first inclined conical surface and a second inclined conical surface respectively inside the first inner sleeve and the second inner sleeve correspondingly push opposite inclined conical surfaces of a first inclined part and a second inclined part inside the first pressing member and the second pressing member, so that the present invention can achieve multi-component pressing and concentric alignment effects, and can provide a use case in which the first inner sleeve and the second inner sleeve can penetrate through pipes of different lengths.

Description

Inner shaft sleeve structure of five-way pipe

The present invention relates to an inner sleeve structure of a five-way pipe, and in particular, to the use of the first inclined cone surface and the second inclined cone surface inside the first inner sleeve and the second inner sleeve corresponding to the first pressing force. The structural relationship of the first slanting part and the relative inclined cone surface of the second slanting part inside the tightening part and the second tightening part can not only achieve the effect of multi-component pressing and concentric alignment, but also Innovative structural designers who have given the first inner sleeve and the second inner sleeve to different types of pipe bodies.

Press, the bicycle five-way pipe refers to the pipe on the bicycle frame that connects the riser, lower pipe and rear fork. The inner shaft of the five-way pipe is set with Palin, crank shaft, crank, and large chainring. By stepping on the crank The pedal rotates the large chainring, which in turn drives the key bar to rotate the wheel, so that the bicycle starts to run. Among them, the coincidence between the crank shaft and the five-way pipe is related to the overall safety performance of the bicycle and whether there is any abnormal sound, so the five-way pipe can be regarded as the most important part of the entire bicycle frame. However, the pipe body of the five-way pipe has various specifications of different lengths, and the conventional inner sleeve is only used for a pipe body of one length size, and cannot be universally used for various kinds of pipe bodies of different lengths. It is necessary to further improve it. .

Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop an innovative structure that is more ideal and practical, which is really desired by consumers, is also the goal and direction for relevant industry players to strive for breakthroughs in research and development. In view of this, the inventor of the present case has designed the components of the present invention in detail after many years of design experience, and after practical and careful evaluation, he finally has a practical invention.

That is, the main purpose of the present invention is to provide an inner sleeve structure of a five-way pipe. The problem to be solved is that the inner body of the five-way pipe has a variety of different length specifications, and the conventional inner shaft sleeve is known. It can only be used for one kind of pipe with different length, but it cannot be used for all kinds of pipe with different length.

The technical characteristics of the problem are mainly including a predetermined pipe body, which is arranged on the bicycle frame and has a through hole; a plurality of first pressing members of different thicknesses are provided with a first pressing end at one end, so that The first pressing end is tightly fitted with a through hole provided at one end of the pipe body, and a first through part is formed in the hollow of the first pressing part, and a first guide is provided at a predetermined section of the inner edge of the first through part. Bevel; a plurality of second pressing members of different thicknesses, one end of which is provided with a second pressing end, so that the second pressing end fits tightly through a through hole provided at the other end of the pipe body, and the second pressing part The inside of the piece is hollowly formed with a second penetrating portion, and a second inclined portion is provided at a predetermined section of the inner edge of the second penetrating portion. A first inner sleeve is in the shape of a hollow tube, and the first inner sleeve One end of the shaft is assembled into the first penetration portion of the first pressing member and shaft is inserted into the through hole of the pipe body. The first inner shaft sleeve is provided with a first group setting portion at the end, and the first The other end ring of the inner sleeve is provided with a first flange, and one end of the first flange is axially extended with a first side convex seat. A first shaft group end is formed inside one convex seat, and a bearing member and a dustproof side cover can be assembled inside the first shaft group end, wherein the first inner shaft sleeve and the first pressing member are A first oblique tapered surface with a relative oblique guide position is provided at the position of the first oblique guide; a second inner shaft sleeve is in the shape of a hollow tube; one end of the second inner shaft sleeve is a shaft assembled into the second forcing. The second penetrating portion of the fastening member is axially inserted into the through hole of the pipe body, and the end of the second inner sleeve is provided with a second set of portions corresponding to the first set of portions of the first inner sleeve. , The second group of setting portions corresponds to the first group of setting portions connected to the first inner shaft sleeve, so that the first inner shaft sleeve is relatively engaged with the second inner shaft sleeve, and the second inner shaft The other end ring of the sleeve is provided with a second flange. One end of the second flange is axially extended with a second side convex seat. A second shaft group end is formed inside the second side convex seat. A bearing member and a dust-proof side cover can be assembled on the shaft. The second inner shaft sleeve and the second oblique guide portion of the second pressing member are provided with a second obliquely matched second guide. Cone;

With this innovative and unique design, the present invention makes use of the first inclined cone surface and the second inclined cone surface inside the first inner sleeve and the second inner sleeve corresponding to the first pressing member and the second pressing The structural relationship of the first oblique guide portion and the relative oblique conical surface of the second oblique guide portion in the component can not only achieve the effect of multi-component pressing and concentric alignment, but also give the first inner shaft sleeve and The second inner sleeve can be used for different types of tube bodies.

Please refer to Figures 1 to 5, which are the preferred embodiments of the inner sleeve structure of the five-way pipe of the present invention. However, these embodiments are for illustration only and are not limited by this structure in patent applications. It contains:

A predetermined pipe body (10) is provided on the bicycle frame and has a through hole (11);

A plurality of first pressing members (20) of different thicknesses are provided at one end with a first pressing end (21), so that the first pressing end (21) fits tightly on the opening of one end of the pipe body (10). A hole (11), and the first pressing member (20) is hollowly formed with a first penetrating portion (23) inside, a first slanting portion (22) is provided at a predetermined section of the inner edge of the first penetrating portion (23) );

A plurality of second pressing members (20A) of different thicknesses are provided at one end with a second pressing end (21A), so that the second pressing end (21A) fits snugly to the other end of the pipe body (10) A through hole (11), and a second penetrating portion (23A) is formed in the hollow of the second pressing member (20A), and a second slanting portion ( 22A); a first inner shaft sleeve (30), which is in the shape of a hollow tube, so that a first hollow portion (31) is formed inside, and one end of the first inner shaft sleeve (30) is a shaft assembly into the first A first penetration portion (23) of a pressing member (20) is axially inserted into the through hole (11) of the pipe body (10), and a first end of the first inner shaft sleeve (30) is provided with a first An assembly portion (32), and the other end ring of the first inner shaft sleeve (30) is provided with a first flange (35), and one end of the first flange (35) is axially extended with a first side convex seat (36) A first shaft group end (37) is formed inside the first side convex seat (36), and a bearing member (40) and a dust-proof side can be assembled inside the first shaft group end (37). Cover (50), In the first inner shaft sleeve (30) and the first oblique guide (22) of the first pressing member (20) (20), a first oblique tapered surface (34) is provided with a relative oblique guide fit; A second inner sleeve (30A), which is in the shape of a hollow tube, so that a second hollow portion (31A) is formed in the interior. One end of the second inner sleeve (30A) is a shaft that is assembled into the second tightness. After the second penetration portion (23A) of the piece (20A) is inserted into the through hole (11) of the pipe body (10), the end of the second inner sleeve (30A) corresponds to the first inner sleeve (30) The first group of setting portions (32) is provided with a second group of setting portions (32A), and the second group of setting portions (32A) corresponds to the first group of connecting portions of the first inner shaft sleeve (30). A set of setting portions (32) make the first inner shaft sleeve (30) and the second inner shaft sleeve (30A) relatively engage, and the other end ring of the second inner shaft sleeve (30A) is provided with a second A flange (35A), one end of the second flange (35A) is axially extended with a second side protrusion (36A), and a second shaft group end (37A) is formed inside the second side protrusion (36A), The second shaft group end (37A) The shaft is provided with a bearing member (40) and a dust-proof side cover (50), wherein the second inner shaft sleeve (30A) and the second inclined portion (22A) of the second pressing member (20A) (20A) ) Position is provided with a second oblique tapered surface (34A) with opposite oblique fit;

When the first inner sleeve (30) and the second inner sleeve (30A) are assembled in the through hole (11) of the pipe body (10), the first pressing member (20) and the The second pressing member (20A) is respectively sleeved against the two ends of the through hole (11) of the pipe body (10) and the first inner shaft sleeve (30) and the second inner shaft sleeve (30A). At each of the first flange (35) and the second flange (35A), the first inner shaft sleeve (30) and the second inner shaft sleeve (30A) are supported by two outer end bearing members ( 40) And a predetermined mandrel (A) can be pivoted to present a fixed use state; and if the first inner sleeve (30) and the second inner sleeve (30A) are grouped in tubes of different lengths ( 10), for example, the length A of the pipe body (10) in Fig. 2 is 72.6mm, and the length B of the pipe body (10) in Fig. 4 is 67.6mm. The first pressing member (20) and the second pressing member (20A) with different thicknesses and matching thicknesses are used in accordance with the length of different pipe bodies (10), and the first inner shaft sleeve (30) and The first oblique inside the second inner sleeve (30A) Surface (34) and the second oblique cone surface (34A) correspond to the first inclination portion (22) and the second inclination inside the first pressing member (20) and the second pressing member (20A) The structural relationship of the opposite inclined cone surface of the part (22A) can not only achieve the effect of multiple components pressing and concentric alignment, but also can give the first inner sleeve (30) and the second inner sleeve (30A) ) Those who can use the tube body (10) of different lengths. Preferably, a first inner screw section (33) is provided in the first set portion (32) of the first inner shaft sleeve (30), and the second of the second inner shaft sleeve (30A) The assembly section (32A) is provided with a second outer screw section (33A) corresponding to the first inner screw section (33).

Preferably, the thickness of the first pressing member (20) is greater than the thickness of the second pressing member (20A), so that the assembly of the first pressing member (20) is provided with a large chainring element as a pivot at one end Set by.

Summarizing the above descriptions, the design of the above structure of the present invention can effectively overcome the shortcomings faced by the habitual invention, and further has the above-mentioned many advantages and practical values. Therefore, the present invention is an excellent creative invention, and No identical or similar product creation or public use has been seen in the technical field, so the present invention has already met the requirements of the invention patent for "newness" and "progressiveness", and an application has been made in accordance with the law.

〔this invention〕

10‧‧‧ tube body

11‧‧‧through hole

20‧‧‧ First Urgent

21‧‧‧ the first urgent end

22‧‧‧ the first guide slope

23‧‧‧ the first penetration

20A‧‧‧ Second Urgent

21A‧‧‧ Second Urgent End

22A‧‧‧Second Guide Slope

23A‧‧‧Second penetration

30‧‧‧First inner sleeve

31‧‧‧First Hollow

32‧‧‧The first group

33‧‧‧The first internal screw section

34‧‧‧The first oblique cone

35‧‧‧First flange

36‧‧‧The first side convex seat

37‧‧‧The first axis group end

30A‧‧‧Second inner sleeve

31A‧‧‧Second Hollow Section

32A‧‧‧Second Group Division

33A‧‧‧Second Outer Screw Segment

34A‧‧‧Second Oblique Cone

35A‧‧‧Second flange

36A‧‧‧Second side convex seat

37A‧‧‧Second shaft set end

40‧‧‧bearing parts

50‧‧‧ dustproof side cover

A‧‧‧ mandrel

FIG. 1 is an exploded perspective view of the inner sleeve structure of the five-way pipe of the present invention. FIG. 2 is a sectional view of the inner sleeve structure of the five-way pipe according to the present invention. Fig. 3: A partially enlarged schematic diagram of Fig. 2. FIG. 4 is a cross-sectional view of another tube length of the inner sleeve structure of the five-way pipe according to the present invention. FIG. 5 is a partially enlarged schematic diagram of FIG. 4.

Claims (3)

An inner sleeve structure of a five-way pipe includes: a predetermined pipe body provided on a bicycle frame and having a through hole; a plurality of first pressing members of different thicknesses, and a first pressing end is provided at one end thereof, so that the The first pressing end is tightly fitted with a through hole provided at one end of the pipe body, and the first pressing part is hollowly formed with a first penetration portion therein, and a first guide slope is provided at a predetermined section of the inner edge of the first penetration portion. A plurality of second pressing members of different thicknesses, one end of which is provided with a second pressing end, so that the second pressing end fits tightly through a through hole provided at the other end of the pipe body, and the second pressing member The inner hollow is formed with a second penetrating portion, and a second inclined portion is provided at a predetermined section of the inner edge of the second penetrating portion; ； a first inner sleeve, which is in the shape of a hollow tube, one end of the first inner sleeve The tie rod is assembled into the first penetration portion of the first pressing member and is inserted into the through hole of the pipe body. A first group setting portion is provided at the end of the first inner sleeve, and the first inner portion The other end ring of the sleeve is provided with a first flange, and one end of the first flange is axially extended with a first flange. A side convex seat, a first shaft group end is formed inside the first side convex seat, and a bearing part and a dust-proof side cover can be assembled inside the first shaft group end, wherein the first inner shaft sleeve and the first A first oblique tapered surface with a relatively oblique guide fit is provided at the position of the first guide oblique part of a pressing member; 第二 a second inner sleeve, which is in the shape of a hollow tube, and one end of the second inner sleeve is a shaft After the second penetration part of the second pressing member is assembled into the through hole of the pipe body, the end of the second inner sleeve corresponds to the first set part of the first inner sleeve. There is a second set of setting portions, which correspond to the first set of setting portions connected to the first inner sleeve, so that the first inner sleeve and the second inner sleeve are relatively engaged, The other end ring of the second inner sleeve is provided with a second flange, and one end of the second flange is axially extended with a second side convex seat. A second shaft group end is formed inside the second side convex seat. A bearing member and a dust-proof side cover can be assembled inside the second shaft group end, wherein the second inner shaft sleeve and the second oblique guide of the second pressing member are provided with an opposite position. A second oblique tapered surface with an oblique guide; 第一 when the first inner sleeve and the second inner sleeve are assembled in the through hole of the pipe body, the first pressing member and the second pressing member The sleeves abut against the two ends of the through hole of the pipe body and the first flange and the second flange of the first inner sleeve and the second inner sleeve, respectively, so that the first inner shaft The sleeve and the second inner sleeve can be pivoted by a predetermined mandrel through the bearing members at the two outer ends to present a fixed use state; and if the first inner sleeve and the second inner sleeve are assembled in When the tubes of different lengths are used, the first pressing member and the second pressing member with matching thicknesses are passed through the sleeves to match the lengths of the different tubes. The first inner shaft sleeve and the second inner sleeve are used. The first oblique tapered surface and the second oblique tapered surface inside the shaft sleeve correspond to the opposite oblique tapered surfaces of the first oblique guide portion and the second oblique guide portion inside the first pressing member and the second pressing member. In addition to the structural relationship, in addition to the effect of multi-component urgency and concentric alignment, the first inner sleeve and the second inner sleeve can be used in different types of pipe bodies. Is its character. The inner bushing structure of the five-way pipe according to claim 1, wherein the first group setting part of the first inner bushing is provided with a first inner screw section, and the second inner bushing is provided with the second The setting section corresponds to the first inner screw section and the second outer screw section matching the screw group. The inner sleeve structure of the five-way pipe according to claim 1, wherein the thickness of the first pressing member is greater than that of the second pressing member.