CN208593474U - A kind of hundle-bar fold mechanism - Google Patents

Abstract

The utility model relates to one kind, its structure is simple, and expansion lock operation is simple, and locks firm hundle-bar fold mechanism comprising: a handle seat, a left handle bar, a right handlebar stem and a locking mechanism；Attachment base that handle base can be connect by one with bicycle profile tube and extend under a upper extension board and one board group at；Handlebar stem is provided with an open curved groove；When handle is unfolded, handlebar stem handle end is rotated to two sides respectively to be unfolded, the connecting rod of locking mechanism will be caught in the open curved groove of the left handle bar and the right handlebar stem other end, and the other end of left and right handlebar stem is in overlapping shape up and down between the upper extension board and lower extension board.Lock operation is simple after the handle folding mechanism of the utility model realizes folding handle of bicycle expansion using left and right handle overlapping lock-in techniques, and locking is secured, the effect of handle non-loosening.

Description

A kind of hundle-bar fold mechanism

Technical field

The utility model relates to a kind of handle folding mechanisms of bicycle, and structure is simple, and expansion lock operation is simple, and Handlebar locked is secured.

Background technique

Bicycle for current people provide one kind by favorite traffic, movement, lie fallow, mode of playing, with low-carbon Environmental protection concept is accepted extensively in China or even worldwide, and cycling trip is becoming increasingly popular.Traditional bicycle, Especially it is absorbed in the bicycle of movement, match, often head is larger, heavier-weight, does not meet arbitrarily portable short distance and hands over Logical, leisure purposes, then folding bicycle is just given birth at once.Since bicycle handlebar will install brake handle, gear change hand lever on hand Deng other accessories, and since comfort level of riding considers that people natively will require the length of hundle-bar, such bicycle Handle is the maximum component of bicycle lateral dimension.Since common hundle-bar does not have folder function, postal great in this way The case carrying of bicycle, transport are facilitated with storage.Thus people are sought for foldable hundle-bar technology.

There are two types of folding handle of bicycle on the market at present folds one is the locking after handle expansion is implemented with bolt When corresponding bolt is unclamped with tool, then carry out folding operation；When expansion, after handle is deployed into setting position, in recruitment Bolt is locked fixed handle by tool.The advantages of this mode is that the handlebar locked fastness of expansion is very high, but disadvantage is equally very Obviously, operation is too complicated, says from the strict sense, this does not fold handle, dismounts handle according to need.Another folding grip Hand is to be blocked left and right handle respectively using the sleeve with pyramidal structure；This folding handle, it is easy to operate, fast, but due to Consider the needs manually unlocked, when production will generally design biggish gap, in this way, the handle after expansion locking just has loosening Sense.

Summary of the invention

The utility model aims to solve the problem that the above problem, and it is simple to invent a kind of structure, and expansion lock operation is simple, and locks jail Solid hundle-bar fold mechanism.

A kind of structure of the utility model is simple, and expansion lock operation is simple, and locks firm hundle-bar and fold Mechanism, comprising: a handle seat, a left handle bar, a right handlebar stem and a locking mechanism；

Attachment base that the handle base can be connect by one with bicycle profile tube and extend under a upper extension board and one Board group at；

The left handle bar and the right handlebar stem are set between the upper extension board and lower extension board, and respectively with prolong Plate is stretched with the connection of spin axis formula；

The locking mechanism has the handle of eccentric wheel structure, the connecting rod and an adjusting nut of a line with tooth by one Composition；The locking mechanism is set on the extension board between the left handle bar and right handlebar stem, the hand of the locking mechanism When handle rotates, eccentric wheel structure can change the distance between the upper extension board and lower extension board；

The handlebar stem (no matter left handle bar with right handlebar stem) one end connects handle, and the other end is provided with one with described Open curved groove centered on spin axis；

When handle is unfolded, the left handle bar and right handlebar stem handle end rotate to two sides be unfolded respectively, the locking machine The connecting rod of structure will be caught in the open curved groove of the left handle bar and the right handlebar stem other end, the left handle bar and right handle The other end of bar is in overlapping shape up and down between the upper extension board and lower extension board；

The hundle-bar fold mechanism structure of the utility model is simple, and operation is simple.The bicycle handlebar of the utility model When hand fold mechanism is unfolded to lock due to handle, the overlapping of left and right handle, handle body will be folded by reusing eccentric wheel locking mechanism It forces together with left and right handle, the old situation for not having loosening of handle after locking in this way.

The hundle-bar fold mechanism of the utility model is unfolded since left and right handle is provided with arc-shaped slot in handle When, which is stopped on handle expansion direction by the connecting rod of locking mechanism, and such structure greatly reduces locking machine Structure failure bring security risk.

The hundle-bar fold mechanism of the utility model is of the invention ingenious on the region of handlebar locked setting inclined-plane Place, since extension board forms a frame-type structure up and down in the present invention, it can make a small amount of deformation according to need, in handle After ' locked ' zone is arranged to the relatively thin bevel structure of folding direction, under the pressure of eccentric lock mechanism, upper and lower extension board and a left side The ' locked ' zone of right handlebar stem forms the wedge structure for being conducive to locking, the advantage of this structure is coupling mechanism force is small, locking Robust.At least one is set in the one side of contact up or down extension board in the expansion ' locked ' zone of the handlebar stem other end Concaveconvex structure, and convex-concave structure is arranged in the corresponding position when locking is unfolded on the up or down extension board, so that handle is unfolded When locking, these concave-convex mechanisms can be engaged, and it is small also to can reach coupling mechanism force in this way, the good purpose of locking effect.

The utility model can be not only used for ordinary bicycle, can also be applied to electric assisted bicycle, electric vehicle and The handle etc. of other vehicles.

Detailed description of the invention

Fig. 1 is the folded schematic diagram of the utility model fold mechanism

Fig. 2 is the schematic diagram after the expansion of the utility model fold mechanism

Fig. 3 is the side schematic view after the expansion of the utility model fold mechanism

Fig. 4 is the schematic diagram during the expansion of the utility model fold mechanism

Fig. 5 is the structural schematic diagram on the utility model fold mechanism handlebar stem other end inclined-plane

Fig. 6 is the structural schematic diagram of the utility model fold mechanism handlebar stem other end card slot

Fig. 7 is the handle base schematic diagram that the utility model fold mechanism is connect with bicycle profile tube

Specific embodiment

As shown in fig. 6, the other end of left handle bar 4 and right handlebar stem 5 is provided with an open arc centered on spin axis Shape slot 10.

As shown in figure 5, the bevel structure 16 of the other end handlebar locked region of left handle bar 4 and right handlebar stem 5 setting.

As shown in figure 4, attachment base 1 and a upper extension board 2 and one that handle base can be connect by one with bicycle profile tube A lower extension board 3 forms.Left handle bar 4 and right handlebar stem 5 are all set between extension board 2 and lower extension board 3, and visitor is respectively It is rotated around spin axis 7 and spin axis 8.Locking mechanism has the handle 6 of eccentric wheel structure, the connecting rod 14 of a line with tooth and one by one A adjusting nut 15 forms.

As shown in figure 3, the other end 13 of left handle bar 4 is Chong Die with about 12 other end of right handlebar stem 5 when being fully deployed Between upper extension board 2 and lower extension board 3.

Hundle-bar folding operation explanation:

Such as Fig. 2, when folding, the handle of locking mechanism 6 is pulled, then revolves left handle bar 4 around rotation 7 in a counterclockwise direction It turn 90 degrees, right handlebar stem 5 is rotated by 90 ° around rotation 8 in a clockwise direction.Such as Fig. 1.

Operating instruction is unfolded in hundle-bar:

Such as Fig. 1, when expansion, left handle bar 4 is rotated around rotation 7 in a clockwise direction, by right handlebar stem 5 with side counterclockwise It is rotated to around rotation 8, until the connecting rod 14 that the card slot 10 of the left and right handlebar stem other end is locked structure 6 stops, then machine will be locked The handle wrench of structure 6 returns to lock state.Such as Fig. 2.

Claims (6)

1. a kind of hundle-bar fold mechanism, it is characterised in that: the hundle-bar fold mechanism includes a handle seat, and one A left handle bar, a right handlebar stem and a locking mechanism；

Attachment base that the handle base can be connect by one with bicycle profile tube and extend board group under a upper extension board and one At；

The left handle bar and the right handlebar stem are set between the upper extension board and lower extension board, and respectively with extension board With the connection of spin axis formula；

The locking mechanism has the handle of eccentric wheel structure, the connecting rod and an adjusting nut group of a line with tooth by one At；The locking mechanism is set on the extension board between the left handle bar and right handlebar stem, the handle of the locking mechanism When rotation, eccentric wheel structure can change the distance between the upper extension board and lower extension board.

2. hundle-bar fold mechanism as described in claim 1, it is characterised in that: the left handle bar and the right handle Bar one end connects handle, and the other end is provided with an open curved groove centered on the spin axis.

3. hundle-bar fold mechanism as claimed in claim 2, it is characterised in that: handlebar stem connection handle one end Thickness is about provided with twice of the other end thickness of open curved groove.

4. hundle-bar fold mechanism as claimed in claim 3, it is characterised in that: when handle is unfolded, the left handle bar It rotates and is unfolded to two sides respectively with right handlebar stem handle end, the connecting rod of the locking mechanism will be caught in the left handle bar and right In the open curved groove of the hand lever other end, the other end of the left handle bar and right handlebar stem is located on described in overlapping shape up and down Between extension board and lower extension board.

5. hundle-bar fold mechanism as claimed in claim 4, it is characterised in that: the left handle bar and the right handle The expansion ' locked ' zone of the bar other end can be set to inclined-plane, and the arc channel opening one contact up or down extension board on one side The thickness of side is compared with other side thickness, so that the two scarf wedgewises are engaged with upper and lower extension board when handle expansion locking.

6. hundle-bar fold mechanism as claimed in claim 4, it is characterised in that: the expansion of the handlebar stem other end is locked Determine region and may also set up at least one concaveconvex structure on one side in contact up or down extension board, and on the up or down extension board Convex-concave structure is arranged in corresponding position when expansion locking, so that these concave-convex mechanisms can be engaged when handle expansion locking.