CN101905729A

CN101905729A - Motorcycle

Info

Publication number: CN101905729A
Application number: CN 201010257455
Authority: CN
Inventors: 王晓庆; 朱大州; 张显艺; 彭涛; 牛庆禹; 蒋传华; 彭琳
Original assignee: Chongqing Longxin Engine Co Ltd
Current assignee: Chongqing Longxin Engine Co Ltd
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2010-12-08

Abstract

The invention provides a motorcycle. A handle tube is connected with the upper end of a headstock direction post; a plug with a threaded hole is in threaded connection in the end hole of the handle tube; a balance weight is connected with the plug through a connecting bolt; the plug is provided with a threaded part and a head part; at least two planes which are symmetrically arranged at two sides of an axial lead are arranged at the head part of the plug; and the head part of the plug is positioned in a groove at the end part of the balance weight. By adopting the technical scheme of the invention, the connection structure between the balance weight and the handle tube on the motorcycle is more reasonable; the balance weight and the handle tube are connected reliably and can be disassembled and assembled conveniently; when an accident occurs, the handle tube can be effectively protected, thereby reducing the maintenance cost; and the balance weight and the handle tube are tightly matched, the gap is small, and the commercial appearance is good.

Description

Motor bike

Technical field

The present invention relates to motor bike, especially the mounting structure of parts on motor bike.

Background technology

On existing known motor bike, motorcyclist all is equipped with bob-weight usually to (direction handle pipe) end, plays the counterweight effect.The common mounting structure of handgrip bob-weight mainly contains following three kinds of forms: one, bob-weight is connected the handle pipe end by the expanded rubber cover, and the inner end of expanded rubber cover is fixed with nut.Earlier the expanded rubber cover is filled in the handle pipe with interference fit during assembling, be fastenedly connected with screw bolt passes bob-weight, expanded rubber cover and nut then.Its defective is that quality of fit is poor, and the gap is big between bob-weight and the handlebar grips cover, and is not attractive in appearance, and the connection of bob-weight is unreliable, easily comes off in the use; Two, bob-weight carries outside thread, handgrip pipe racks negative thread, bob-weight precession handle pipe and being threaded during assembling.Its defective is that Joint strenght is too high, and when having an accident, bob-weight and handle pipe are damaged together often, the maintenance cost height, and need in handle pipe, process negative thread, the technology cost is higher; Three, at handgrip pipe end welding plug (being equivalent to nut) with threaded hole, bob-weight by bolted connection on plug.Though this version solved in aforementioned two kinds of versions maintenance cost high be connected insecure problem, have the welding process operating difficulties, the problem of assembly precision difference.

Summary of the invention

The purpose of this invention is to provide a kind of motor bike, it is more reasonable that this motor bike has structure, and that assembly manipulation gets up is easier, it is reliable to connect, and the low handgrip bob-weight mounting structure of maintenance cost.

For achieving the above object, the invention provides a kind of motor bike, be connected with handle pipe, in the handle pipe stomidium, be connected with plug with threaded hole in the upper end of headstock direction post, bob-weight links to each other with plug with tie bolt, between plug and the handle pipe stomidium for being threaded.

The present invention changes being connected between the plug on the motor bike handle pipe and the handle pipe into the detouchable thread matching structure, when having an accident, because tie bolt is thinner relatively, at first be the tie bolt fracture or the distortion of bob-weight, the tie bolt of changing bob-weight gets final product.Even tie bolt ruptures, as the second road preventive, also be that the plug negative thread is pulled at most, change plug and get final product, reduced maintenance cost, effectively reduction accident has been protected and has been closed heavy functor handle pipe the infringement of handle pipe.Entirely for being threaded, the production assembling is more convenient during assembling.The quality of fit height makes the outward appearance commodity of handle pipe end better.

Further, plug has threaded portion and head, and the threaded portion of plug cooperates with the handle pipe stomidium, and the head of plug is positioned at outside the handle pipe stomidium, and the head of plug has two planes about the axial line symmetry at least.The head of plug has improved the intensity of whole plug, and the step surface during assembling between head and the threaded portion is resisted against the handle pipe end face, makes between plug and the handle pipe to cooperate closely, and the head of plug plays transition between bob-weight and handle pipe stressed.At least two planes about the axial line symmetry of the head setting of plug are convenient to drive it with instrument and are rotated motion during mounting or dismounting.

Further, the head cross-sectional plane outline of plug is to be linked to each other at interval by the length limit to surround the polygon that forms, and any limit of this polygon all has another limit in parallel and about the center symmetry.The head cross-sectional plane outline of plug adopts the polygon of symmetrical expression length limit combination, has both made things convenient for instrument to drive its rotation, makes its stress equalization again, even head is exposed, does not also influence outward appearance.

Further, bob-weight has groove by the end of handle pipe one end, and the head of plug is positioned at groove, can make the gap between bob-weight and the handle pipe little like this, cooperates closely, and the outward appearance commodity is good.

Adopt technical scheme of the present invention, make that handle pipe and the connection structure between the bob-weight on the motor bike is more reasonable, not only connect reliably, and install and remove easy to operately, handle pipe can be effectively protected when having an accident, thereby reduces maintenance cost; Cooperating between handle pipe and the bob-weight is tight, and the gap is little, and the outward appearance commodity is good.

Description of drawings

Fig. 1 is the scheme drawing of motor bike of the present invention;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the structural representation of bob-weight among Fig. 2;

Fig. 4 is the structural representation of plug among Fig. 2;

Fig. 5 is the left view of Fig. 4;

Among the figure: 1. handle pipe; 2. plug; 2a. threaded portion; 2b. head; 2c. step surface; 3. bob-weight; 3a. groove; 4. tie bolt.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.

As shown in Figure 1 and Figure 2, on motor bike of the present invention, the upper end of headstock direction post is connected with handle pipe 1, is connected with plug with threaded hole 2 in handle pipe 1 stomidium, bob-weight 3 usefulness tie bolts 4 link to each other with plug 2, between plug 2 and handle pipe 1 stomidium for being threaded.

Compare with existing known motor bike, the present invention changes being connected between the plug on the motor bike 2 and the handle pipe 1 into the detouchable thread matching structure, when having an accident, as contacting to earth or touch other object in the handle pipe end, because tie bolt 4 is thinner relatively, at first be tie bolt 4 fractures or the distortion of bob-weight 3, the tie bolt 4 of changing bob-weight 3 gets final product.Even tie bolt 4 does not rupture, as the second road preventive, also be that the negative thread of plug 2 is pulled at most, change plug 2 and get final product, reduced maintenance cost, effectively reduction accident has been protected and has been closed heavy functor handle pipe the infringement of handle pipe.In addition, entirely for being threaded, the production assembling is more convenient during owing to assembling.The quality of fit height makes the outward appearance commodity of handle pipe end better.

Referring to Fig. 4, Fig. 5, plug has threaded portion 2a and head 2b, the threaded portion 2a of plug cooperates with the handle pipe stomidium, the head 2b of plug is positioned at outside the handle pipe stomidium, the head 2b of plug has improved the intensity of whole plug, step surface 2c during assembling between head 2b and the threaded portion 2a is resisted against the handle pipe end face, makes between plug and the handle pipe to cooperate closely, and the head 2b of plug plays transition between bob-weight and handle pipe stressed.The head 2b of plug has two planes about the axial line symmetry at least, is convenient to drive it with instrument during mounting or dismounting and is rotated motion.

Referring to Fig. 5, the head 2b cross-sectional plane outline of plug is to be linked to each other at interval by the length limit to surround the polygon that forms, and any limit of this polygon all has another limit in parallel and about the center symmetry.The head 2b cross-sectional plane outline of plug adopts the polygon of symmetrical expression length limit combination, has both made things convenient for instrument to drive its rotation, makes its stress equalization again, even head is exposed, does not also influence outward appearance.

Referring to Fig. 3, bob-weight 3 has groove 3a by the end of handle pipe one end, and the head of plug is positioned at groove 3a, can make the gap between bob-weight 3 and the handle pipe little like this, cooperates closely, and the outward appearance commodity is good.

Claims

1. a motor bike is connected with handle pipe in the upper end of headstock direction post, is connected with plug with threaded hole in the handle pipe stomidium, and bob-weight links to each other with plug with tie bolt, it is characterized in that: between described plug and the handle pipe stomidium for being threaded.

2. motor bike as claimed in claim 1, it is characterized in that: described plug has threaded portion and head, the threaded portion of plug cooperates with the handle pipe stomidium, and the head of plug is positioned at outside the handle pipe stomidium, and the head of plug has two planes about the axial line symmetry at least.

3. motor bike as claimed in claim 2 is characterized in that: the head cross-sectional plane outline of described plug is to be linked to each other at interval by the length limit to surround the polygon that forms, and any limit of this polygon all has another limit in parallel and about the center symmetry.

4. motor bike as claimed in claim 1 is characterized in that: described bob-weight has groove by the end of handle pipe one end, and the head of plug is positioned at groove.