CN201350940Y

CN201350940Y - Folding joint of folding bicycle

Info

Publication number: CN201350940Y
Application number: CNU2009200501866U
Authority: CN
Inventors: 黄可俭
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-15
Filing date: 2009-01-15
Publication date: 2009-11-25
Anticipated expiration: 2019-01-15

Abstract

The utility model discloses a folding joint of a folding bicycle. The lower ends of a front cover and a rear cover are articulated by a pin shaft, joint faces of the front cover and the rear cover are concave/convex tooth surfaces which are mutually matched, a rotating shaft hole used for installing a front handle rotating shaft is arranged above the rear cover, and a rotating shaft hole used for installing a rear handle rotating shaft is arranged below a handle; one end of a hexagonal adjusting screw rod is arranged in a first tooth vein hole of the front handle rotating shaft, and the other end is arranged in a second tooth vein hole of the rear handle rotating shaft; a locking device is arranged between the front end of the handle and the front cover; the rear cover is higher than the front cover, the upper end part of the rear cover is concave, an upper sunken part is arranged in the middle of the rear cover, left and right upper protruding parts are arranged at the two edges of the rear cover, the handle is arranged in the upper sunken part, and the height of the handle is equal to that of the two upper protruding parts. The folding joint has the characteristics of simple structure, convenient operation and high safety degree; if the left/right upper protruding parts and left/right lower protruding parts are manufactured into arc-shaped, the folding joint can be more beautiful.

Description

A kind of folding bicycle folding joint

Technical field

The utility model relates to folding bicycle, especially a kind of joint that is used to connect the bicycle beam column.

Background technology

Traditional bicycle is by utilizing the plural body of rod and tire to be constituted, therefore the volume of standard bicycle is quite huge, must reserve a bigger space when parking can be put, yet, soil, urban an inch of land is an inch of gold now, the space that people live is compressed gradually, therefore the application on the space just seems especially important, so real social requirement now that do not met of standard bicycle, therefore many manufacturers just drop into the production and the research and development of Folding Bicycle, and are the emergence in response to Folding Bicycle, and the research and development and the design of bicycle folding joint of all kinds are just arranged, by the installing of folding joint, the car bar of bicycle is folded or flexible.

In the prior art, bicycle folding joint is mostly connected by hinge axis by front and back flype one end, and the other end is with the tight lock construction of eccentric wheel, when folding joint closes, by the tight latch mechanism locking of eccentric wheel folding joint.But this kind folding joint appearance poor is used inconvenience, and because of the inaccessible technical requirements of accuracy of manufacture, makes the dislocation of two flypes.When bicycle travels for a long time, owing to Uneven road, cause between folding joint and vibrate, thereby damage folding joint.In addition, for locking device is installed, flype must outwards protrude 10～20 centimetres, and this outside bulge branch causes the accident easily in the process of driving.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of folding bicycle folding joint, eliminates mechanical wear and loosening problem of misalignment that folder brings in long-time use, thereby increases the safe reliability and the service life of bicycle folder; Locking device is hidden in protecgulum and the bonnet, minimizing accident odds; Good looking appearance, practical and convenient quick.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of folding bicycle folding joint, form by protecgulum, bonnet, pin axle, handle, front hand grip turning cylinder, back handle turning cylinder and six side's adjusting screw(rod)s; Protecgulum and bonnet lower end are hinged by the pin axle, the binding face of protecgulum and bonnet is the concavo-convex flank of tooth that cooperatively interacts, the bonnet top is provided with the shaft hole that the front hand grip turning cylinder is installed, the handle below is provided with the shaft hole that the back handle turning cylinder is installed, six side's adjusting screw(rod)s, one end of regulating handle position is installed in the first tooth pit of front hand grip turning cylinder, and the other end is installed in the second tooth pit of back handle turning cylinder; Be provided with locking device between handle front end and the protecgulum; Bonnet is higher than protecgulum, and the bonnet upper end is shaped as spill, and the centre is last depressed part, and both sides are the left and right salient of going up, and locking device is arranged in the depressed part, and the height of salient is concordant on the height of handle and two.Locking device is installed in the last depressed part of bonnet, makes that the height of locking device is concordant with the height of bonnet, thereby make whole folding joint become littler, more attractive in appearance.

As improvement, described locking device extends the grab that is provided with and is positioned at the draw-in groove that protecgulum top cooperates with grab for the handle front end.

As improvement, described locking device is the groove that inwardly is provided with of handle front end and is positioned at the extended raised line with groove fit in protecgulum top.

As improvement, described bonnet bottom is shaped as spill, and the centre is a lower recess portion, and both sides are left and right salient down; Described protecgulum bottom is shaped as convex, and the centre is middle salient; The middle salient of protecgulum cooperates with the lower recess portion of bonnet.

As improvement, the lower-left salient and the upper left salient of described bonnet are provided with tapped bore, in the described tapped bore Self-locking screw are installed.Prevent that the pin axle from coming off and cause danger.

As improvement, described front hand grip turning cylinder is provided with the hyperdontogeny pit, and described back handle turning cylinder is provided with the 4th tooth pit, is connected with the fixed handle azimuth bar between the 3rd, the 4th tooth pit.Prevent that rotating from appearring in handle after open mode.

As improvement, described left and right last salient and left and right following salient are curved.

The beneficial effect that the utility model is compared with prior art brought is:

Increased and be separately positioned on the concavo-convex flank of tooth that matches on protecgulum and the bonnet, effectively limited the skew dislocation of protecgulum and bonnet in the chimeric effect that holds of shaggy tooth; Increase front hand grip turning cylinder, back handle turning cylinder and six side's adjusting screw(rod)s, reached the optimum regime of fastening protecgulum and bonnet by the position of six side's adjusting screw(rod) regulating handles; Be provided with depressed part in the middle of the bonnet, locking device is hidden on this in depressed part.Thereby the utility model can be eliminated mechanical wear and the loosening problem of misalignment that folding joint brings in long-time use, strengthen the sealed intensity between protecgulum and the bonnet, thereby increases the safe reliability and the service life of bicycle folding joint; Locking device is hidden in protecgulum and the bonnet, minimizing accident odds; In addition, this folding joint outward appearance is generous simple, and is easy to use quick.

Description of drawings

Fig. 1 is the utility model and bicycle beam column bonded assembly scheme drawing;

Fig. 2 is the utility model block diagram;

Fig. 3 is the utility model decomposition view.

The specific embodiment

The utility model is described in further detail below in conjunction with Figure of description.

As shown in Figures 1 to 3, a kind of folding bicycle folding joint is made up of protecgulum 2, bonnet 3, pin axle (not indicating), handle 4, front hand grip turning cylinder 13, back handle turning cylinder 5 and six side's adjusting screw(rod)s 15.Protecgulum 2 bottoms are shaped as convex, and the centre is middle salient 2a; Bonnet 3 bottoms are shaped as spill, and the centre is the 3f of lower recess portion, and both sides are left and right salient 3c, 3d down.The middle salient 2a of protecgulum 2 cooperates with the 3f of lower recess portion of bonnet 3, and the pin axle passes the middle salient 2a of protecgulum 2 and left and right salient 3c, the 3d down of bonnet 3, and protecgulum 2 and bonnet 3 are articulated.The lower-left salient 3c of described bonnet 3 is provided with tapped bore 14, and Self-locking screw (indicate) is installed in the described tapped bore 14, prevents in the driving process that the pin axle comes off and causes danger.The binding face of protecgulum 2 and bonnet 3 is the concavo-convex flank of tooth 7 that cooperatively interacts, bonnet 3 tops are provided with the shaft hole 6 that front hand grip turning cylinder 13 is installed, handle 4 belows are provided with the shaft hole 5 that back handle turning cylinder 5 is installed, six side's adjusting screw(rod)s, 15 1 ends of regulating handle 4 positions are installed among the first tooth pit 13a of front hand grip turning cylinder 13, and the other end is installed among the second tooth pit 5a of back handle turning cylinder 5; Described front hand grip turning cylinder 13 is provided with hyperdontogeny pit 13b, and described back handle turning cylinder 5 is provided with the 4th tooth pit 5b, is connected with fixed handle azimuth bar 11 between the 3rd, the 4th tooth pit.Be provided with locking device between handle 4 front ends and the protecgulum 2, the locking device in the present embodiment is that handle 4 front ends extend the grab 15 that is provided with and are positioned at the draw-in groove 12 that protecgulum 2 tops cooperate with grab 15.Bonnet 3 is higher than protecgulum 2, bonnet 3 upper ends are shaped as spill, the centre is last depressed part 3e, both sides are left and right salient 3a, the 3b of going up, upper left salient 3a is provided with tapped bore 9, Self-locking screw (not indicating) is installed in the described tapped bore 9, and locking device is arranged among the depressed part 3e, and the height of salient 3a, 3b is concordant on the height of handle 4 and two.

The using method of folding bicycle folding joint of the present utility model is as follows:

As shown in Figures 1 to 3, before the central area of protecgulum 2 and bonnet 3 non-binding faces is connected respectively,

back beam column

1,10, when needs are opened joint, during with bicycle folding, be pulled outwardly fixed handle 4, handle 4 rotates around front hand grip turning cylinder 13, the grab of being located on handle 4 front ends 15 begins to break away from the draw-in groove of being located on the protecgulum 2 12, after grab 15 and draw-in groove 12 broke away from fully, protecgulum 2 separated fully with the upper end of bonnet 3, because the bottom of protecgulum 2 and bonnet 3 is articulated by the pin axle, 10 one-tenth bending states of beam column 1 and back beam column before making, be about to bicycle and be divided into two, area reduces half, is convenient to collection and carries.

When needs assembling reduction bicycle, protecgulum 2 and bonnet 3 are fitted, because the binding face of protecgulum 2 and bonnet 3 is provided with the concavo-convex flank of tooth 7, hold under the effect in the chimeric of shaggy tooth, effectively limited the skew dislocation of protecgulum 2 and bonnet 3, and can reduce bicycle in the influence of driving tool on opportunity vibration to the folder life-span.After protecgulum 2 and bonnet 3 applyings, handle 4 is outwards rotated to an angle, grab 15 on handle 4 just can be embedded in the draw-in groove 12 on the protecgulum 2, by the distance of six side's adjusting screw(rod)s, 15 regulating handles 4 and protecgulum 2, reaches the optimum efficiencies of the forward and backward lid 3 of handle 4 tight locks.After distance was adjusted, with handle 4 opposite spins, till handle 4 can not rotate again, the locking action of 4 pairs of forward and backward lids 3 of handle was finished.Handle 4 is when locking state, and the latching device on the handle 4 is hidden in the forward and backward

lid

2,3 fully.

The utility model is simple in structure, easy to operate, degree of safety is high; Described left and right upward salient and left and right salient are down done camber, more attractive in appearance.

The groove that locking device of the present utility model can also inwardly be provided with for handle 4 front ends and be positioned at the extended raised line with groove fit in protecgulum 2 tops, all have the utility model structure and just form revise, all belong to protection category of the present utility model.

Claims

1. a folding bicycle folding joint is made up of protecgulum, bonnet, pin axle, handle, front hand grip turning cylinder, back handle turning cylinder and six side's adjusting screw(rod)s; Protecgulum and bonnet lower end are hinged by the pin axle, the binding face of protecgulum and bonnet is the concavo-convex flank of tooth that cooperatively interacts, the bonnet top is provided with the shaft hole that the front hand grip turning cylinder is installed, the handle below is provided with the shaft hole that the back handle turning cylinder is installed, six side's adjusting screw(rod)s, one end of regulating handle position is installed in the first tooth pit of front hand grip turning cylinder, and the other end is installed in the second tooth pit of back handle turning cylinder; Be provided with locking device between handle front end and the protecgulum; It is characterized in that: bonnet is higher than protecgulum, and the bonnet upper end is shaped as spill, and the centre is last depressed part, and both sides are the left and right salient of going up, and locking device is arranged in the depressed part, and the height of salient is concordant on the height of handle and two.

2. a kind of folding bicycle folding joint according to claim 1 is characterized in that: described locking device extends the grab that is provided with and is positioned at the draw-in groove that protecgulum top cooperates with grab for the handle front end.

3. a kind of folding bicycle folding joint according to claim 1 is characterized in that: described locking device is the groove that inwardly is provided with of handle front end and is positioned at the extended raised line with groove fit in protecgulum top.

4. according to claim 2 or 3 described a kind of folding bicycle folding joints, it is characterized in that: described bonnet bottom is shaped as spill, and the centre is a lower recess portion, and both sides are left and right salient down; Described protecgulum bottom is shaped as convex, and the centre is middle salient; The middle salient of protecgulum cooperates with the lower recess portion of bonnet.

5. a kind of folding bicycle folding joint according to claim 4 is characterized in that: the lower-left salient and the upper left salient of described bonnet are provided with tapped bore, in the described tapped bore Self-locking screw are installed.

6. a kind of folding bicycle folding joint according to claim 5, it is characterized in that: described front hand grip turning cylinder is provided with the hyperdontogeny pit, described back handle turning cylinder is provided with the 4th tooth pit, is connected with the fixed handle azimuth bar between the 3rd, the 4th tooth pit.

7. a kind of folding bicycle folding joint according to claim 6 is characterized in that: described left and right last salient and left and right following salient are curved.