CN210083447U

CN210083447U - Bicycle integral type headstock bowl

Info

Publication number: CN210083447U
Application number: CN201920976587.8U
Authority: CN
Inventors: 徐利勇
Original assignee: Ningbo Julong Machinery Co ltd
Current assignee: Ningbo Julong Machinery Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-02-18
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses an integrated bicycle head bowl, which comprises an upper head bowl group clamped at the upper end opening of a head tube, a lower head bowl group clamped at the lower end opening of the head tube and a bicycle front fork sequentially passing through the lower head bowl group, the head tube and the upper head bowl group, wherein the front fork is provided with a head cover; the upper headstock bowl group is an integral upper headstock bowl formed by integrally assembling a washer, an upper bead plug, an upper steel bead, an upper iron bowl and a nylon upper bowl; the lower headstock bowl group is an integral lower headstock bowl formed by integrally assembling a nylon lower bowl, a lower iron bowl, a lower steel ball, a lower ball plug and a lower plug; the internal thread is processed in the upper port of front fork, and the external thread that screw thread locking front fork was matched with the internal thread of front fork is processed to the car headstock lid. The utility model has the characteristics of the assembly is simple and convenient, and is fixed reliable, and it is wide to be suitable for the motorcycle type.

Description

Bicycle integral type headstock bowl

Technical Field

The utility model relates to a design technology of bicycle spare part, a locomotive bowl that especially uses on the bicycle, specifically speaking bicycle integral type locomotive bowl.

Background

Nowadays, the concept of green riding and low-carbon life is advocated and practiced by people more and more. With the development of the times, a bicycle head bowl is already used as an indispensable part of a bicycle, but the traditional head bowl requires an assembling worker to install at least 12 parts and more than 15 parts. With the increasing of labor cost, the more assembly parts mean higher expenditure of labor cost and higher cost pressure of the whole vehicle. Therefore, strong demands for rapid and simple bowl group installation are derived in the market, so that the labor cost of assembly is saved, and management, control and transportation are facilitated.

Disclosure of Invention

The utility model aims to solve the technical problem to the current situation of above-mentioned prior art, and provide rational in infrastructure, the safety and stability, extensive applicability to can realize a bicycle integral type headstock bowl of simple and easy installation fast.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

an integrated bicycle head bowl comprises an upper head bowl group clamped at an upper port of a head tube, a lower head bowl group clamped at a lower port of the head tube and a bicycle front fork sequentially penetrating through the lower head bowl group, the head tube and the upper head bowl group, wherein the front fork is provided with a head cover; the upper headstock bowl group is an integral upper headstock bowl formed by integrally assembling a washer, an upper bead plug, an upper steel bead, an upper iron bowl and a nylon upper bowl; the lower headstock bowl group is an integral lower headstock bowl formed by integrally assembling a nylon lower bowl, a lower iron bowl, a lower steel ball, a lower ball plug and a lower plug; the internal thread is processed in the upper port of front fork, and the external thread that screw thread locking front fork was matched with the internal thread of front fork is processed to the car headstock lid.

In order to optimize the technical scheme, the specific measures adopted further comprise:

the headstock cover consists of a circular locking pressure plate and a cylinder integrally connected to the lower end face of the locking pressure plate; the external thread is formed on the peripheral surface of the cylinder, and an inner hexagonal wrench hole which is concave along the axis of the cylinder is processed at the center of the top surface of the locking pressure plate.

A plurality of arc-shaped hollow cavities are processed in the cylinder body at equal intervals, and an increasing rib for improving the rigidity of the inner hexagonal wrench hole is formed between two adjacent hollow cavities; the equal radian shaping has the locking rib that the multichannel is used for reinforcing frictional force on the annular bottom surface of locking pressure disk, and shaping arc recess between two adjacent locking ribs.

The upper iron bowl is positioned and installed in an upper bowl cavity of the nylon upper bowl, a barb for preventing the upper iron bowl from falling off from the upper bowl cavity is formed at the cavity opening of the upper bowl cavity in an equal radian mode, and the barb is hooked on an upper annular surface of the upper iron bowl to prevent falling off; the upper steel ball is rotationally pressed in the ball cavity of the upper iron bowl through the upper ball plug; the washer shaping has the lower protruding mouth that is used for passing the hole of last pearl stopper and the hole of last iron bowl in proper order, and it has the deformation breach that makes lower protruding mouth can take place elasticity reducing when receiving radial extrusion to open on the global of lower protruding mouth, and the annular bottom edge of this lower protruding mouth is provided with the bottom surface that is used for hooking last iron bowl and makes washer, last pearl stopper, last steel bead, go up the buckle that the integrated assembly of iron bowl and nylon went up the bowl and become a whole head of getting on the bus.

The lower iron bowl is positioned and installed in a lower bowl cavity of the nylon lower bowl, and the lower steel ball is rotationally pressed and installed in the lower iron bowl through the lower ball plug; the lower plug is provided with an open slot which can enable the lower plug to generate elastic reducing during radial extrusion, and an annular hook platform is formed on the periphery of the lower plug; an annular hook platform for hooking the lower plug is formed at the cavity opening of the lower nylon bowl, so that the lower nylon bowl, the lower iron bowl, the lower steel ball, the lower ball plug and the lower plug are integrated to form the integrated anti-falling inner hook of the lower head bowl.

Compared with the prior art, the utility model discloses an go up the locomotive group and be by china department, go up pearl stopper, go up the steel pearl, go up the integrated equipment of bowl and constitute an integral head bowl of going up of iron bowl and nylon, integral head bowl of going up can be as the direct pressure equipment of an assembly part at the last port of locomotive pipe. The lower head bowl group is an integral lower head bowl formed by integrally assembling a nylon lower bowl, a lower iron bowl, a lower steel ball, a lower ball plug and a lower plug, and the integral lower head bowl can also be used as an assembly part to be directly pressed and mounted at the upper port of the head pipe. The headstock cover is also an integrated headstock cover, and the headstock cover can be in locking fit with the front fork through threaded connection so as to prevent the integral upper headstock bowl and the integral lower headstock bowl from axially moving up and down. The utility model discloses when the installation, the front fork passes integral lower head cup, head pipe and integral upper head cup in proper order, and the equipment of bicycle head part can be accomplished fast to the front shroud screw in front fork. The invention has the characteristics of simple and convenient assembly, reliable fixation and wide applicable vehicle types.

Drawings

Fig. 1 is a schematic perspective exploded view of the present invention;

FIG. 2 is a partial cross-sectional structural view of the present invention;

FIG. 3 is a schematic perspective view of the hood of the present invention;

FIG. 4 is a schematic perspective view of the hood of the present invention at another angle;

FIG. 5 is a schematic perspective view of the integral upper head cup of the present invention;

FIG. 6 is a schematic perspective view of the integrated lower head bowl of the present invention;

FIG. 7 is an enlarged partial schematic view taken at 1 in FIG. 2;

FIG. 8 is a schematic view of a three-dimensional structure of a nylon upper bowl of the present invention;

FIG. 9 is a cross-sectional structural view of the nylon upper bowl of the present invention;

fig. 10 is a schematic perspective view of the upper iron bowl of the present invention;

FIG. 11 is a cross-sectional structural view of the upper iron bowl of the present invention;

FIG. 12 is a schematic perspective view of the hood of the present invention;

FIG. 13 is an enlarged partial schematic view taken at II in FIG. 2;

FIG. 14 is a schematic perspective view of a nylon lower bowl of the present invention;

FIG. 15 is a cross-sectional view of the lower nylon bowl of the present invention;

fig. 16 is a schematic perspective view of the lower plug of the present invention;

fig. 17 is a sectional structure view of the lower plug of the present invention;

FIG. 18 is a cross-sectional view of the bead plug of the present invention;

fig. 19 is a schematic structural view of the steel ball of the present invention.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Fig. 1 to 18 are schematic structural views of the present invention.

Wherein the reference numerals are: the bicycle head comprises an internal thread A, an external thread B, a bicycle head pipe 1, a front fork 2, a bicycle head cover 3, a hollow cavity 3a, an increasing rib 3B, a locking rib 3c, an arc-shaped groove 3d, a locking pressure plate 31, a cylinder 32, an inner hexagonal wrench hole 33, an integral upper bicycle head bowl 4, a washer 41, a deformation notch 41a, a buckle 41B, a lower convex nozzle 411, an upper bead plug 42, an upper steel bead 43, an upper iron bowl 44, a first positioning inclined plane 44c, a nylon upper bowl 45, an upper bowl cavity 45a, a barb 45B, a second positioning inclined plane 45c, a reinforcing rib 45d, a convex ring 451, an integral lower bicycle head bowl 5, a nylon lower bowl 51, a lower bowl cavity 51a, an anti-falling inner hook 511, a lower iron bowl 52, a lower steel bead 53, a lower bead plug 54, a lower plug 55, an open slot 55a and an annular hook platform 551.

The utility model discloses a bicycle integral type headstock bowl, including clamping the last headstock bowl group of port on headstock pipe 1 and clamping the lower headstock bowl group and the bicycle front fork 2 of port under headstock pipe 1, front fork 2 sets headstock lid 3. The front fork 2 sequentially penetrates through the lower headset, the headset tube 1 and the upper headset. The front fork 2 can freely rotate relative to the head tube 1 by utilizing the lower head bowl group and the upper head bowl group so as to ensure the steering of the bicycle. The headstock cover 3 is locked on the front fork 2 through threaded connection, so that the upper headstock bowl group and the lower headstock bowl are prevented from longitudinally moving.

The utility model discloses a biggest contribution lies in: the upper headstock bowl group is an integrated upper headstock bowl 4 formed by integrally assembling a washer 41, an upper bead plug 42, an upper steel bead 43, an upper iron bowl 44 and a nylon upper bowl 45. The lower head bowl group is an integral lower head bowl 5 formed by integrally assembling a nylon lower bowl 51, a lower iron bowl 52, a lower steel ball 53, a lower ball plug 54 and a lower plug 55. The integral upper head bowl 4 and the integral lower head bowl 5 are independent assembly components which are assembled in a production workshop.

The processing has internal thread A in the last port of front fork 2, and processing has the external screw thread B with the internal thread A matched with of front fork 2 on the headstock lid 3, and headstock lid 3 and front fork 2 are connected through external screw thread B and internal thread A screw thread locking.

In the embodiment shown in fig. 3 and 4, the cowl 3 is composed of a circular locking pressure plate 31 and a cylinder 32 integrally connected to a lower end surface of the locking pressure plate 31; the external thread B is formed on the outer peripheral surface of the cylinder 32, and an internal hexagonal wrench hole 33 recessed along the axis of the cylinder 32 is formed in the center of the top surface of the locking pressure plate 31. The locking of the front fork 2 by the cowl 3 is tightened by an internal hexagonal wrench.

In the embodiment shown in fig. 4, the overall weight of the cowl 3 is reduced in order to save material cost. A plurality of arc-shaped hollow cavities 3a are machined in the cylinder 32 of the headstock cover 3 at equal intervals, and an increasing rib 3b for improving the rigidity of the hole wall of the inner hexagonal wrench hole 33 is formed between two adjacent hollow cavities 3 a. In order to increase the friction force and prevent the loosening of the headstock cover 3, a plurality of anti-loosening ribs 3c are formed on the annular bottom surface of the locking pressure plate 31 in an equal radian mode, and arc-shaped grooves 3d are formed between every two adjacent anti-loosening ribs 3 c.

In the embodiment, as can be seen from fig. 7 of the present invention, the upper iron bowl 44 is positioned and installed in the upper bowl cavity 45a of the upper nylon bowl 45, the equal radian at the cavity opening of the upper bowl cavity 45a is formed with the barb 45b for preventing the upper iron bowl 44 from being disengaged from the upper bowl cavity 45a, and the barb 45b is engaged with the upper annular surface hook for preventing disengagement of the upper iron bowl 44. The periphery of the nylon upper bowl 45 is also provided with a convex ring 451 which is supported and pressed and matched with the end surface of the upper port of the head pipe 1, and the diameter of the convex ring 451 is larger than the inner diameter of the head pipe 1. The upper iron bowl 44 is formed with a first positioning inclined surface 44c, and the upper bowl cavity 45a is formed with a second positioning inclined surface 45c matched with the first positioning inclined surface 44c formed by the upper iron bowl 44. In order to improve the structural strength of the nylon upper bowl 45, a plurality of reinforcing ribs 45d are further formed on the nylon upper bowl 45, and the number of the reinforcing ribs 45d can be set according to needs, and can be ten, or eight, six, and the like. The upper steel ball 43 is rotatably press-fitted into the ball cavity of the upper iron bowl 44 through the upper ball plug 42.

By the utility model discloses a can see that, the china department 41 shaping has the lower mouth 411 that is used for passing the hole of last pearl stopper 42 and the hole of last iron bowl 44 in proper order, and it has the deformation breach 41a that makes lower mouth 411 can take place the elasticity reducing when receiving radial extrusion to open on lower mouth 411 global, and this lower mouth 41 a's annular bottom edge is provided with the bottom surface that is used for hooking last iron bowl 44 and makes china department 41, last pearl stopper 42, go up steel bead 43, go up iron bowl 44 and nylon and go up bowl 45 integrated assembly and become buckle 41b of an integral head bowl 4 of getting on. In the undeformed normal state of the lower lip 411, the diameter of the catch 41b is larger than the diameter of the inner hole of the upper bead plug 42 and the diameter of the inner hole of the upper iron bowl 44.

The lower iron bowl 52 and the upper iron bowl 44 of the utility model are identical in structure, the lower ball plug 54 and the upper ball plug 42 are also identical in structure, and the lower steel ball 53 and the upper steel ball 43 are also identical. The lower iron bowl 52 is positioned and installed in the lower bowl cavity 51a of the nylon lower bowl 51, and a positioning inclined plane for positioning is also machined in the lower bowl cavity 51 a. The lower steel ball 53 is rotationally pressed in the lower iron bowl 52 through the lower ball plug 54; the lower plug 55 is provided with an opening groove 55a which can enable the lower plug 55 to generate elastic diameter change when being radially extruded, and an annular hook platform 551 is formed on the periphery of the lower plug 55; the nylon lower bowl 51 is provided with an anti-drop inner hook 511 for hooking an annular hook platform 551 of the lower plug 55 at the cavity opening, so that the nylon lower bowl 51, the lower iron bowl 52, the lower steel ball 53, the lower ball plug 54 and the lower plug 55 are integrated to form an integral lower head bowl.

The integrated bicycle head bowl of the invention is mounted in the following state: the nylon upper bowl 45 is fastened in the head tube 1, the inner bore of the washer 41 is tightly held with the front fork 2, the nylon lower bowl 51 is fastened in the head tube 1, and the inner bore of the lower plug 55 is tightly matched with the front fork 2. The bicycle handle is rotated, the steel balls rotate between the iron bowl and the ball plug, the washer 41, the ball plug and the lower plug 55 rotate along with the front fork 2 to realize steering of the bicycle handlebar, the head cover 3 is screwed into the front fork 2, and the integral upper head bowl and the integral lower head bowl are prevented from moving longitudinally after being locked.

While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by those skilled in the art without departing from the scope of the present invention.

Claims

1. An integrated bicycle head bowl comprises an upper head bowl group clamped at an upper port of a head tube (1), a lower head bowl group clamped at a lower port of the head tube (1), and a bicycle front fork (2) sequentially penetrating through the lower head bowl group, the head tube (1) and the upper head bowl group, wherein the front fork (2) is provided with a head cover (3); the method is characterized in that: the upper headstock bowl group is an integral upper headstock bowl (4) formed by integrally assembling a washer (41), an upper bead plug (42), an upper steel bead (43), an upper iron bowl (44) and a nylon upper bowl (45); the lower head bowl group is an integral lower head bowl (5) formed by integrally assembling a nylon lower bowl (51), a lower iron bowl (52), a lower steel ball (53), a lower ball plug (54) and a lower plug (55); the front fork is characterized in that an internal thread (A) is processed in the upper port of the front fork (2), and an external thread (B) which is matched with the internal thread (A) of the front fork (2) and is locked with the front fork (2) is processed on the headstock cover (3).

2. The one-piece bicycle headset of claim 1 wherein: the headstock cover (3) consists of a circular locking pressure plate (31) and a cylinder (32) which is integrally connected to the lower end surface of the locking pressure plate (31); the external thread (B) is formed on the peripheral surface of the cylinder (32), and an inner hexagonal wrench hole (33) which is concave along the axis of the cylinder (32) is machined in the center of the top surface of the locking pressure plate (31).

3. The one-piece bicycle headset of claim 2 wherein: a plurality of arc-shaped hollow cavities (3a) are machined in the cylinder (32) at equal intervals, and reinforcing ribs (3b) for improving the rigidity of the inner hexagonal wrench holes (33) are formed between two adjacent hollow cavities (3 a); the annular bottom surface of the locking pressure plate (31) is formed with a plurality of anti-loosening ribs (3c) for enhancing friction in an equal radian manner, and arc-shaped grooves (3d) are formed between two adjacent anti-loosening ribs (3 c).

4. The one-piece bicycle headset of claim 3 wherein: the upper iron bowl (44) is positioned and installed in an upper bowl cavity (45a) of the nylon upper bowl (45), a barb (45b) for preventing the upper iron bowl (44) from being separated from the upper bowl cavity (45a) is formed at the cavity opening of the upper bowl cavity (45a) in an equal radian mode, and the barb (45b) is hooked on an upper end annular surface of the upper iron bowl (44) to be prevented from being separated and matched; the upper steel ball (43) is rotationally pressed in a ball cavity of the upper iron bowl (44) through the upper ball plug (42); the shaping of china department (41) have and be used for passing lower protruding mouth (411) of the hole of last pearl stopper (42) and the hole of going up iron bowl (44) in proper order, the global of lower protruding mouth (411) on open and to have and make lower protruding mouth (411) can take place the deformation breach (41a) of elasticity reducing when receiving radial extrusion, be provided with the bottom surface that is used for hooking up iron bowl (44) on this annular bottom edge of lower protruding mouth (411) and make china department (41), go up pearl stopper (42), go up steel ball (43), go up iron bowl (44) and nylon and go up bowl integrated assembly and become buckle (41b) of an integral upper locomotive bowl (4).

5. The one-piece bicycle headset of claim 4 wherein: the lower iron bowl (52) is positioned and arranged in a lower bowl cavity (51a) of the nylon lower bowl (51), and a lower steel ball (53) is rotationally pressed and arranged in the lower iron bowl (52) through a lower ball plug (54); the lower plug (55) is provided with an opening groove (55a) which can enable the lower plug (55) to generate elastic reducing during radial extrusion, and an annular hook platform (551) is formed on the periphery of the lower plug (55); an annular hook platform (551) used for hooking the lower plug (55) is formed in the cavity opening of the lower nylon bowl (51) so that the lower nylon bowl (51), the lower iron bowl (52), the lower steel ball (53), the lower ball plug (54) and the lower plug (55) are integrated to form an integrated anti-falling inner hook (511) of the lower head bowl.