CN207374598U

CN207374598U - New bicycle

Info

Publication number: CN207374598U
Application number: CN201721315132.9U
Authority: CN
Inventors: 栾业东; 潘宇华
Original assignee: Tianjin Flying Pigeon Che Ye Development Co Ltd
Current assignee: Tianjin Flying Pigeon Che Ye Development Co Ltd
Priority date: 2017-10-12
Filing date: 2017-10-12
Publication date: 2018-05-18
Anticipated expiration: 2027-10-12

Abstract

The utility model discloses a kind of new bicycles, including bicycle body, axis and chain wheel, the both ends of the axis are fixedly installed crank, the chain wheel is coaxially fixedly installed with axis, its key points of the technical solution are that, one end that a piece crank is fixedly connected with axis is provided with several arc linking arms, and the described one end of arc linking arm away from axis is provided with link block；The chain wheel is provided with several first teeth in annular shape on its excircle, several extensions with link block cooperation are extended with to its center of circle direction on inner periphery；It is fixedly connected between the extension and link block by removable component.The utility model has the advantage for being easily changed chain wheel.

Description

New bicycle

Technical field

The utility model is related to a kind of bicycle, more specifically, it relates to a kind of new bicycle.

Background technology

Bicycle, also known as bicycle can be used as the vehicles to be used for riding instead of walk, going on a journey, and have the characteristics that green, environmental protection It is and wide welcomed by the people.

Existing application publication number be CN102060072A a kind of quick-folding portable bicycle of Chinese patent, driving machine Structure includes axis, and crank and chain wheel are connected to axis, and flywheel is connected to trailing wheel, chain is wire-wrapped on chain wheel and flywheel, and pedal connects It is connected on crank.Chain wheel can be driven to rotate by trampling the foot-operated of crank end, so as to which drive chain drives flywheel and trailing wheel It rotates.

But the chain wheel or crank of this bicycle be fixedly disposed on axis or chain wheel and axis one into Then type is fixedly mounted by axis again., it is necessary to by after the parts such as axis all dismounting during chain wheel serious wear, could carry out The repair and replacement of chain wheel are made troubles to the replacement and repair of chain wheel.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of new bicycles, have It is easily changed the advantage of chain wheel.

To achieve the above object, the utility model provides following technical solution：

A kind of new bicycle, including bicycle body, axis and chain wheel, the both ends of the axis are fixedly installed song Handle, the chain wheel are coaxially fixedly installed with axis, and one end that a crank is fixedly connected with axis is provided with several arcs Shape linking arm, the described one end of arc linking arm away from axis are provided with link block；The chain wheel is in annular shape, and its excircle On be provided with several first teeth, be extended with several extensions with link block cooperation to its center of circle direction on inner periphery；It is described It is fixedly connected between extension and link block by removable component.

By using above-mentioned technical proposal, during installation, make the extension on chain wheel and the link block of arc linking arm end Overlapping can will be connected firmly using the fixation of removable component between chain wheel and arc linking arm.Trample foot-operated when rotating crank, tooth Disk can be rotated therewith so as to drive chain, and the power of advance is provided for bicycle.During chain wheel serious wear, removable component is released Fixation, you can chain wheel is dismantled.Evade when conventional bicycle replaces chain wheel, it is necessary to which chain wheel, axis etc. are all torn open The inconvenience of integral replacing could be replaced or chain wheel and crank can only carried out after unloading, and improved installation, dismantled chain wheel Convenience.

Further, the removable component includes fixing bolt and the fixing nut with fixing bolt cooperation, the fixation Bolt-through link block and extension are set.

By using above-mentioned technical proposal, the firm firm, easy removal of connection of fixing bolt and fixing nut makes Connection between extension and link block is not easy to loosen, it is necessary to during dismounting and change chain wheel, release fixing bolt and fixing nut Fixation.

Further, the tongue and groove with extension cooperation is provided on the link block.

By using above-mentioned technical proposal, when extension is connected with link block, extension inlay card is at tongue and groove so that extension Cooperation between portion and link block is even closer, and loosening is less prone to after connection, improves the stability of chain wheel installation.

Further, it is provided with non-slip mat between the link block and extension.

By using above-mentioned technical proposal, non-slip mat plays an important role of increase friction so that between link block and extension It fits closely, further improves stabilization, the fixing of connection.Non-slip mat can select rubber pad, polyvinyl chloride pad, polyurethane Pad etc..

Further, it is all provided on the side that the extension is contacted with non-slip mat side, connecting portion are contacted with non-slip mat Several increasings are equipped with to rub burr.

It by using above-mentioned technical proposal, is tightened after nut, increases burr insertion non-slip mat of rubbing, further improve anti- Slip energy adds the compactness connected between link block and extension, fixing.

Further, being fitted closely on the chain wheel and be provided with secondary chain wheel piece, the pair chain wheel piece is identical with chain wheel shape, And the second teeth fitted closely with the first teeth are provided on the excircle of secondary chain wheel piece, second teeth are shorter in length than The length of first teeth.

By using above-mentioned technical proposal, being arranged on for secondary chain wheel piece plays increase chain wheel intensity, promotes shock resistance While effect, the second teeth of secondary chain wheel on piece are shorter in length than the first teeth length on chain wheel, when the first teeth are worn When serious, it can be found in time by the length for comparing the first teeth and the second teeth, so that user replaces chain wheel in time.

Further, circumference array is provided with several rivets, the pair chain wheel piece centered on its center of circle on the chain wheel It is fixedly connected between chain wheel by rivet.

By using above-mentioned technical proposal, rivet interlacement is simple, secured, can make closely to paste between secondary chain wheel piece and chain wheel It closes.

Further, several first lightening holes, the pair chain wheel on piece and the first loss of weight hole site are provided on the chain wheel Corresponding position is provided with second lightening hole identical with the first loss of weight hole shape.

By using above-mentioned technical proposal, the first lightening hole is opened up with the second lightening hole, is alleviated the weight of chain wheel, is made It obtains lighter during riding bicycle.Meanwhile also play an important role of to save manufacture chain wheel and secondary chain wheel sheet material, it is manufactured beneficial to reducing Cost.

Further, shirt rim, the shirt rim are extended with to the direction of the second lightening hole on the side wall of first lightening hole The side wall in the second lightening hole with the second lightening hole is inserted into fit closely.

By using above-mentioned technical proposal, the side wall that shirt rim is inserted into the second lightening hole with the second lightening hole closely pastes It closes, plays the role of enhancing the compactness connected between chain wheel and secondary chain wheel piece.

In conclusion the utility model has the advantages that：

1st, it is detachably connected between chain wheel and arc linking arm so that without chain wheel, crank, axis etc. are all dismantled, Chain wheel can be replaced, improve installation, the convenience for replacing chain wheel；

2nd, tongue and groove, non-slip mat and increasing rubs the setting of burr so that can be fitted closely between extension and link block, after connection It is less prone to loosening；

3rd, the setting of secondary chain wheel piece adds the integral strength of chain wheel, meanwhile, shorter than the second teeth of the first teeth are set It puts so that can be found in time during chain wheel serious wear, to be replaced or be repaired to chain wheel.

Description of the drawings

Fig. 1 is the structure diagram of new bicycle in embodiment；

Fig. 2 is the enlarged drawing of part A in Fig. 1；

Fig. 3 is the structure diagram of axis, crank and arc linking arm in embodiment；

Fig. 4 is the enlarged drawing of part B in Fig. 3；

Fig. 5 is the structure diagram one of chain wheel in embodiment；

Fig. 6 is the enlarged drawing of C portion in Fig. 5；

Fig. 7 is the structure diagram two of chain wheel in embodiment；

Fig. 8 is the enlarged drawing of D parts in Fig. 7.

In figure：1st, bicycle body；2nd, axis；3rd, counterbore；4th, crank；41st, ride；42nd, arc linking arm；421st, connect Block；4211st, tongue and groove；4212nd, non-slip mat；5th, the burr that rubs is increased；6th, chain wheel；61st, extension；62nd, the first teeth；63rd, the first loss of weight Hole；64th, rivet；65th, shirt rim；7th, secondary chain wheel piece；71st, the second teeth；72nd, the second lightening hole；8th, removable component；81st, fixed spiral shell Bolt；82nd, fixing nut.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment：

A kind of new bicycle with reference to Fig. 1, including bicycle body 1, is provided with axis 2 on bicycle body 1, in The both ends of axis 2 are fixedly installed crank 4 respectively.4 one end of crank is fixed on axis 2, and the other end is provided with foot-operated 41.Bicycle One side and axis 2 be coaxially arranged with chain wheel 6, chain wheel 6 and chain（It is not drawn into figure）Cooperation transmission provides traveling for bicycle Power.

With reference to Fig. 2, it is provided with the crank 4 of 6 one side of chain wheel, 2 junction of axis is provided with several arc linking arms 42, Arc linking arm 42 1 shares five in the present embodiment.42 one end of arc linking arm is fixed on crank 4, and with crank 4 tie point is arranged radially around for the center of circle, and the angle between adjacent two arcs linking arm 42 is equal.

With reference to Fig. 3 and Fig. 4, the separate one end being connected with crank 4 of arc linking arm 42 is fixedly installed link block 421, even It connects and tongue and groove 4211 is provided on block 421.Several are provided at tongue and groove 4211 and increases the burr 5 that rubs, increases the cross-sectional shape for the burr 5 that rubs For triangle.

With reference to Fig. 5 and Fig. 6, chain wheel 6 is in annular shape, is provided with several first teeth 62 on excircle, prolongs on inner periphery Stretching has extension 61, and the circumference array centered on the center of circle of chain wheel 6 of extension 61 is set.When chain wheel 6 is installed, 61 inlay card of extension Tongue and groove 4211 on link block 421（As shown in Figure 4）Place, can be consolidated extension 61 and link block 421 by removable component 8 Fixed connection.

With reference to Fig. 4, removable component 8 includes fixing bolt 81 and fixing nut 82, is opened on extension 61 and link block 421 Equipped with counterbore 3, fixing bolt 81 is screwed solid after the counterbore 3 on extension 61 and link block 421 by fixing nut 82 It is fixed.

With reference to Fig. 5 and Fig. 6, the secondary chain wheel identical with 6 shape of chain wheel 6 is provided on chain wheel 6, chain wheel 6 is equipped with several Chain wheel 6 by rivet 64 with chain wheel is fixedly connected for 6, makes to fit closely between the two by rivet 64.If it is provided on chain wheel 6 Dry first lightening hole 63, secondary 6 on piece corresponding position of chain wheel is provided with the second lightening hole 72.Prolong on the side wall of first lightening hole 63 Stretching has shirt rim 65, and the side wall that shirt rim 65 is inserted into the second lightening hole 72 with the second lightening hole 72 fits closely.

With reference to Fig. 5 and Fig. 6, secondary 6 on piece of chain wheel is provided with the second teeth 71, and the second teeth 71 and the first teeth 62 are closely pasted Conjunction and the length for being shorter in length than the first teeth 62 of the second teeth 71.When first teeth 62 are worn serious in use, Comparing the length of the first teeth 62 and the second teeth 71 can find in time, to be replaced to chain wheel 6.

With reference to Fig. 7 and Fig. 8, increasing is provided on extension 61 and is rubbed burr 5, during installation extension 61 and link block 421 it Between clip pad non-slip mat 4212（As shown in Figure 4）, frictional force between extension 61 and rubber pad can be increased by increasing the burr 5 that rubs, and be made It is connected firmly, is not easy to loosen.

Operation principle is as follows：

When chain wheel 6 is installed, the extension 61 on chain wheel 6 is aligned at the tongue and groove 4211 on link block 421.In extension 61 Fixing bolt 81 is penetrated counterbore 3, extends through extension 61, non-slip mat by the clip pad non-slip mat 4212 between link block 421 4212 and link block 421, it is tightened at the back side of link block 421 using fixing nut 82.It will prolong successively at five on chain wheel 6 Extending portion 61 is fixedly connected with the link block 421 of five 42 ends of arc linking arm, that is, completes the installation to chain wheel 6.Extension 61 And the burr 5 that rubs of the increasing on link block 421 can increase frictional force between non-slip mat 4212 so that extension 61 and link block Installation between 421 is firm, firm.

This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but As long as it is all protected in the right of the utility model be subject to Patent Law.

Claims

1. a kind of new bicycle, including bicycle body (1), axis (2) and chain wheel (6), the both ends of the axis (2) are fixed It is provided with crank (4), the chain wheel (6) and the coaxial fixed setting of axis (2), it is characterised in that：A piece crank (4) is in One end that axis (2) is fixedly connected is provided with several arc linking arms (42), the separate axis (2) of the arc linking arm (42) One end is provided with link block (421)；The chain wheel (6) is provided with several first teeth (62) in annular shape on its excircle, To its center of circle, direction is extended with several extensions (61) with link block (421) cooperation on inner periphery；The extension (61) with It is fixedly connected between link block (421) by removable component (8).

2. new bicycle according to claim 1, it is characterised in that：The removable component (8) includes fixing bolt (81) and the fixing nut (82) with fixing bolt (81) cooperation, the fixing bolt (81) run through link block (421) and extension Portion (61) is set.

3. new bicycle according to claim 2, it is characterised in that：Be provided on the link block (421) with it is described The tongue and groove (4211) of extension (61) cooperation.

4. new bicycle according to claim 3, it is characterised in that：The link block (421) and extension (61) it Between be provided with non-slip mat (4212).

5. new bicycle according to claim 4, it is characterised in that：The extension (61) connects with non-slip mat (4212) Several increasings are both provided on the side that tactile side, connecting portion are contacted with non-slip mat (4212) to rub burr (5).

6. according to the new bicycle described in any one of claim 1-5 claim, it is characterised in that：On the chain wheel (6) It fits closely and is provided with secondary chain wheel piece (7), the pair chain wheel piece (7) is identical with chain wheel (6) shape, and secondary chain wheel piece (7) is outer Provided circumferentially about to have the second teeth (71) fitted closely with the first teeth (62), second teeth (71) are shorter in length than The length of one teeth (62).

7. new bicycle according to claim 6, it is characterised in that：It is round centered on its center of circle on the chain wheel (6) All arrays are provided with several rivets (64), are fixedly connected between the pair chain wheel piece (7) and chain wheel (6) by rivet (64).

8. new bicycle according to claim 7, it is characterised in that：Several first losss of weight are provided on the chain wheel (6) Hole (63) is provided with and the first lightening hole (63) shape with the first lightening hole (63) position corresponding position on pair chain wheel piece (7) Identical the second lightening hole (72).

9. new bicycle according to claim 8, it is characterised in that：To on the side wall of first lightening hole (63) The direction of two lightening holes (72) is extended with shirt rim (66), and the shirt rim (66) is inserted into the second lightening hole (72) and the second lightening hole (72) side wall fits closely.