CN201405995Y

CN201405995Y - Scooter with gradient pedal

Info

Publication number: CN201405995Y
Application number: CN2009200807284U
Authority: CN
Inventors: 孙群
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-08
Filing date: 2009-05-08
Publication date: 2010-02-17
Anticipated expiration: 2019-05-08

Abstract

The utility model discloses a scooter with gradient pedal. The scooter comprises a frame (1), a front wheel and a back wheel (2, 3), a power pressure bar (4) movably connected on the upper portion ofthe frame, a power pressure bar return mechanism (A) and a power transmission mechanism component (B) which is arranged between the power pressure bar (4) and a driving wheel (13) on a wheel shaft, and is mainly characterized in that the upper end of the power pressure bar (4) can divide a movable pedal into a limit end and a labor-saving end, when the movable pedal is located on the highest position, the gradient (H) of the movable pedal (7) is 15-45 degrees, a limit draw rod (10) is arranged between the front portion of the limit end of the movable pedal and the frame, and the length of thelimit draw rod is equal to the circle radius of a circle travel formed by the connecting shaft of the movable pedal and the limit draw rod moving from the highest point to the lowest point. The utility model relates to a scooter with two wheels to four wheels, the tread mode accords to the stand tread posture of human bodies, human bodies are easy to exert force with stability, and the scooter haslarger power input capability.

Description

A kind of scooter with gradient pedal

Affiliated technical field

The utility model relates to a kind of reciprocating type scooter that steps, and particularly relates to a kind of single action power or double dynamical scooter with certain gradient pedal.

Background technology

At present commercially available two to three-wheel scooter, mainly is that a feet step on the ground by the people obtains to utilize the inertia driving behind the power, and it needs single pin frequently pedal ground, and is not too convenient.In the patent documentation of having announced, the patent No. is a kind of formula two pedal car of scratching for the ZL01237990.5 document discloses, though drag-line can be on two pedal one, realize self-return in the interaction once, but kickstand adopts the mechanism of middle part projection, the feasible formula two pedal of scratching is liftoff higher, gravity center of human body's shakiness during use has the sense of swing when stepping, be unfavorable for that stepping of manpower have an effect; Patent ZL01135643.X document disclose a kind ofly scratch on the formula two pedal one, interactive bicycle once, but chain is installed difficulty first fully by the spring return, second the vibration of spring also easily causes taking off chain.Have again, because the custom that the people steps up and down distance (being amplitude) can limit the stroke of imput power, so the scooter of prior art is when uprightly stepping about 16cm for this reason, imput power (or kinetic energy) deficiency always causes scooter speed too low and can't go up a slope.

Summary of the invention

At above-mentioned situation, the utility model provide a kind of meet human body stand step have an effect, imput power is big and the reciprocating type scooter of certain gradient pedal is arranged.

The technical scheme that the utility model solves the problems of the technologies described above is: it includes kickstand (1), front and back wheel (2,3), be movably connected in the power depression bar (4) on the kickstand top, can make the power depression bar return mechanism (A) that an end of power depression bar upwards scratches and be arranged on Power train assembly (B) between the drive wheel (13) on power depression bar (4) and the axletree, the upper end that it is characterized in that power depression bar (4) is connected with Active foot plate (7) and makes this Active foot plate be divided into Active foot plate positive stop end and the laborsaving end two parts of Active foot plate by axle (6), between the front portion of Active foot plate positive stop end and kickstand, be provided with can restraint pedal action radius limit pull rod (10), when Active foot plate is positioned at most significant bit, the degree of dip (H) of Active foot plate (7) is the 15-45 degree, and the adapter shaft that the length of limit pull rod (10) equals Active foot plate and limit pull rod walks to the garden arc radius (referring to Fig. 1) of the formed circular arc stroke of nadir from vertex.In above-mentioned solution, because the medium position of Active foot plate and the upper end of power depression bar flexibly connect, and the amplitude that the leading section of Active foot plate positive stop end upwards rotates is subjected to the restriction of the limit pull rod of its setting, make Active foot plate be positioned at most significant bit (=power depression bar be in most significant bit on scratch state) time, Active foot plate always has higher relatively degree of dip (=Active foot plate tilts and horizontal angle H), this degree of dip fitness for purpose is the 15-45 degree, in this amplitude range, the raising of Active foot plate degree of dip, can strengthen having an effect of the laborsaving end of heel trampling Active foot plate, thereby obtain bigger imput power, scooter has big kinetic energy thus, obtains gradient capability.Again because the radius that the adapter shaft of Active foot plate and limit pull rod walks to the formed circular arc stroke of nadir from vertex equals the length of limit pull rod, the adapter shaft that is Active foot plate and limit pull rod is exactly the axle point that limit pull rod and kickstand flexibly connect from the circular arc center of circle that vertex walks to the formed circular arc stroke of nadir, determined the utility model to step mode thus for the power input that once steps on earth, specifically, the utility model is when stepping, the mode that can exert oneself together with calcaneal strength or ball of foot and heel directly the Active foot plate trampling to lowest order, finish the whole stroke that steps, also finish the power input travel of power depression bar simultaneously.Because the hard limit pull rod structure that adopts length-specific to require, the degree of freedom that makes Active foot plate turn forward when depressing again is controlled, thereby obviously increased the people in the stability that steps when having an effect, the lifting of its pin also meets human body and stands and step the rule of having an effect with depressing, and phenomenon can lessen fatigue.

In said structure, when Active foot plate was positioned at most significant bit, the best inclination of Active foot plate () (H) was the 25-35 degree.In this best inclination, the stroke of the laborsaving end of pedal can be brought up to about 26 centimeters, has increased considerably input travel.

Above-mentioned Power train assembly (B) has the dynamic link (14) that flexibly connects with power depression bar (4), and the other end of dynamic link (14) is in transmission connection by the drive wheel on unidirectional variable transmission mechanism and the axletree (13) again.

Above-mentioned power depression bar return mechanism (A) constitutes by return depression bar (11) with the return pedal (12) of return depression bar interlock, return depression bar (11) and power depression bar (4) constitute can be each other on one, once scratch plank frame (referring to Fig. 1).Wherein, annexation specifically includes but not limited to following two kinds of schemes between return depression bar (11) and the power depression bar (4): the one, return depression bar and power depression bar itself are connected as a single entity, directly form on one, once scratch plate structure; The 2nd, the return depression bar separates with the power depression bar, but all coaxial being movably connected on the kickstand, is provided with return between the two and connects spring, and this return connects that spring can make on return depression bar and the power depression bar one, interlock (referring to Figure 10) once.In this class formation, the first, the return depression bar has more than the return effect of starting power depression bar, in other words can design also outputting power of return depression bar, thereby becomes the power depression bar, forward and backward two power depression bars this moment return bar each other each other; Second, return depression bar (11), return pedal (12) can adopt and power depression bar (4), structure and connection mode that Active foot plate (7) is identical, and between the front portion of return pedal positive stop end and kickstand, also be provided with and identical can limit the make progress limit pull rod of action radius of pedal, like this, that scratches plate structure forward and backwardly respectively has an identical reciprocating type pedal structure of a nested structure, to increase the output of power.In the power output system of such two cover power depression bars, the connecting rod Power train assembly that just has two covers to cooperatively interact, promptly preceding, be connected with two dynamic links (14) under two the power depression bars in back (4), article two, the other end of dynamic link is in transmission connection by the drive wheel on unidirectional variable transmission mechanism and the axletree (13) again, such as, article two, the other end of dynamic link can be movably connected on the outer ring of coaxial connection or two ratchets (15) of different axle bonded assembly or unilateral bearing respectively or on the extension of inner ring, two ratchets or unilateral bearing are in transmission connection by the drive wheel on variable transmission mechanism and the axletree (13) again by axle.

Above-mentioned power depression bar return mechanism (A) also can be made of the extension spring, stage clip, torsion spring or the stretch cord that are located on the power depression bar, and perhaps footwear on power depression bar or the Active foot plate collude or shoe cover constitutes by being located at.The return mechanism of elastic force or the return mechanism that colludes shell type also can make power depression bar return after depressing, but the return mechanism of elastic force can produce certain resistance to the power that depresses, and the return mechanism that colludes shell type is upwards to mention Active foot plate and power depression bar return, mention return repeatedly, be easy to generate certain sense of fatigue.Certainly with the elastic force return and collude the cover return merge use simultaneously.Equally, by the power depression bar, Active foot plate, elastic force return mechanism (or colluding the shell type return mechanism), the restraint pedal structure that depresses that the limit pull rod (or spacing stay cord) of action radius constitutes that makes progress also can be designed as two cover systems, be installed on the kickstand, this moment, power output system also had two covers to cooperate with it, promptly on a left side, be connected with two dynamic links (14) under right two power depression bars (4), article two, the other end of dynamic link is in transmission connection by the drive wheel on unidirectional variable transmission mechanism and the axletree (13) again, such as, article two, the other end of dynamic link can be movably connected on the outer ring of two ratchets (15) on the kickstand or unilateral bearing respectively or on the extension of inner ring by axle equally, on the outer ring of two ratchets or unilateral bearing, two ratchets are in transmission connection by the drive wheel on variable transmission mechanism and the axletree (13) again.

In said structure of the present utility model, its Power train assembly (B) has the dynamic link (14) that flexibly connects with power depression bar (4), the other end of its dynamic link (14) is movably connected on the outer ring of ratchet on the kickstand or unilateral bearing or on the extension of inner ring, ratchet or unilateral bearing are in transmission connection by the drive wheel on variable transmission mechanism and the axletree (13) again.This is that a kind of design all is relatively easy to the mode that link-type promotes rotation with installation, thrust on the ultromotivity depression bar passes to unidirectional mechanisms such as ratchet or unilateral bearing in the future, and change rotational force into, and then order about the drive wheel high speed revolution after the speed-changing mechanism speedup again, thereby drive wheels to overtake.But, takeoff output of the present utility model and transmission device part also can adopt pinion and-rack structure, power depression bar both sides stay cord or prior aries such as chain extending type structure or slide bar extending type structure.

The utlity model has following good effect: (1) power depression bar is up scratched owing to the effect of return mechanism when the return state, can realize that the installation site of power depression bar on kickstand is relatively low, makes the center of gravity of whole car on the low side.(2) degree of dip of Active foot plate when the extreme higher position is generally the 15-45 degree, the best is the 25-35 degree, and the adapter shaft that the length of limit pull rod equals Active foot plate and limit pull rod walks to the garden arc radius of the formed circular arc stroke of nadir from vertex, this design can improve the power that the stroke medium power depression bar that once depresses is imported to dynamic link, when limit pull rod was hard material, the stability when human body depresses better.(3) utilize the degree of dip of Active foot plate, under the situation about can the height when ball of foot depresses not increasing, improve heel, and allow heel have an effect, this can obtain big power input travel, also can make the people can not experience tired too easily, thereby can continue to step motion.(4) the flexible connection axle point of limit pull rod and Active foot plate, at the vertex of stroke to the circular motion of making concentric between the nadir, once stepping under the stepping on earth like this, Active foot plate and power depression bar are finished whole strokes synchronously, and the stable action of having an effect that depresses, relatively meet the people towards the dead ahead use posture when standing and the rule of having an effect.(5) output and acceleration capacity power of the present utility model are big, thereby have improved the Applicable scope and the driving ability of scooter, especially have gradient capability preferably.(6) the utility model also can be designed to double dynamical scooter, forms multiple product, or front and back step on product, or the left and right product of stepping on, and the power of its output is bigger.(7) because of adopting link-type to promote the design of rotation, thus design easily, cost of manufacture is low, dustproof, lubricated, sealing, gear rotational stabilization in the use all require low.(8) connecting rod promotes the ratchet of unidirectional mechanism or unilateral bearing rotation, and resistance is little, and the anglec of rotation that connecting rod promotes unidirectional mechanism can design greater than 100 degree between less than 180 degree, so the conversion of power is reasonable and efficient is high.(9) takeoff output of the present utility model and transmission device part can adopt prior aries such as pinion and-rack structure, power depression bar both sides extending type structure or slide bar extending type structure equally.(10) the utility model in use can make the person's of stepping hand, chest, waist and belly and leg obtain taking exercise, and is applicable to the use of teenager, youth, middle-aged population.What deserves to be mentioned is that (11) " scooter " that the utility model is mentioned is meant reciprocating type scooter, both comprised the scooter of being with handgrip, also comprises the slide plate of not being with handgrip.Because the utility model has solved the takeoff output and the problem of transmission of scooter preferably, so it can be used for designing from two take turns to four-wheel, from single action power to double dynamical, in the past post legged to about step on, " scooter " from the sports goods to the short-haul vehicle, also can use, become the mixed motivity type scooter with other dynamic mixing.The utility model has been submitted application for a patent for invention on the same day to.

Description of drawings

Further specify the utility model structure below in conjunction with drawings and Examples.

Fig. 1 is the utility model one structural representation

Fig. 2 is that the power depression bar depresses the stroke scheme drawing

Fig. 3-the 6th, the distressed structure scheme drawing of Fig. 1 return mechanism

Fig. 7 is a full-depth tooth wheel engaged transmission scheme drawing

Fig. 8 is chain pitch wheel transmission+meshed transmission gear scheme drawing

Fig. 9-the 10th, the utility model be a structural representation again

Figure 11 is the utility model structural representation again

Figure 12 is a torsion spring connection mode scheme drawing

Figure 13 is the forward and backward double dynamical scooter scheme drawing of elastic force return type

Figure 14 is the part-structure scheme drawing of the left and right double dynamical scooter of elastic force return type

Figure 15 is a shoe cover connection mode scheme drawing

Figure 16 colludes the left and right double dynamical scooter arrangements scheme drawing of return type

The specific embodiment

Embodiment 1: scratch plate return type single action power scooter.

The scooter of present embodiment is seen Fig. 1 for scratching plate return type single action power scooter arrangements, and it has kickstand 1, front and

back wheel

2,3, is movably connected in the power depression bar 4 on the kickstand top; In fact power depression bar 4 is movably connected on the kickstand 1 by axle 5, the upper end of power depression bar 2 is connected with Active foot plate 7 by axle 6 and makes this Active foot plate be divided into positive stop end 8 and laborsaving end 9 two parts, between the front portion of Active foot plate positive stop end and kickstand, be provided with the limit pull rod 10 of the action radius that can the restraint pedal makes progress, this limit pull rod adopts hard pull bar or soft stay cord (or slide fastener) structure, wherein, Active foot plate is when being positioned at most significant bit, the degree of dip of Active foot plate 7 (H) is the 15-45 degree, best inclination is the 25-35 degree, the adapter shaft that the length of limit pull rod 10 equals Active foot plate and limit pull rod walks to the garden arc radius of the formed circular arc stroke of nadir from vertex, in other words, the adapter shaft of Active foot plate and limit pull rod is exactly the axle point that flexibly connects of limit pull rod and kickstand (can referring to Fig. 1-2) from the circular arc center of circle that vertex walks to the formed circular arc stroke of nadir; The return mechanism A of power depression bar is made of the return pedal 12 that return depression bar 11 and return depression bar extension form, wherein return depression bar 11 is connected as a single entity with power depression bar 4, directly constitute different V-shape and scratch plate structure, thereby realize on one, the return of interaction once and power depression bar; The Power train assembly B that is arranged between the drive wheel 13 on power depression bar 4 and the axletree has the dynamic link 14 that flexibly connects with power depression bar 4, the other end of dynamic link 14 is in transmission connection by the drive wheel on unidirectional variable transmission mechanism and the axletree 13 again, specifically, the other end of dynamic link 14 (being the lower end) is movably connected on the outer ring of the ratchet (or unilateral bearing) 15 on the kickstand, this ratchet is again by power gear 16, change speed pinion 17, the variable transmission mechanism and the drive wheel on the axletree 13 of formations such as speed change big gear wheel 18 are in transmission connection, wherein,

power gear

16 and 15 coaxial connections of ratchet, change speed pinion 17 and speed change big gear wheel 18 coaxial being connected on the kickstand, be in transmission connection by closed chain 19 between power gear 16 and the change speed pinion 17, speed change big gear wheel 18 is in transmission connection by another closed chain 20 with drive wheel 13, the power of power depression bar 4 inputs to connected dynamic link 14 thus, dynamic link 14 driving pawl 15 rotations again, the turning effort of ratchet is ordered about wheel 13 again and is rotated behind variable transmission mechanism.

Fig. 3-the 6th, the distressed structure of Fig. 1 return mechanism is characterized in that kickstand is overhead relatively low, and brings power depression bar installation position relatively low, but the structure of return mechanism changes approximately.Wherein, be connected with return connecting rod 21 by axle on the return depression bar 11 of Fig. 3, the other end of return connecting rod 21 is movably connected in return pedal 12 nearly medium positions by axle, and the leading section of Active foot plate 12 is movably connected on the kickstand 1 of projection by axle again; The return depression bar 11 of Fig. 4 extends upward, and is extending connection return pedal 12 on the end; Connection mode and Fig. 4 of the return pedal 12 of Fig. 5-6 are slightly different: the middle front part of the return pedal 12 among Fig. 5 and return connecting rod 21 flexibly connect, and the back extension support 22 of the rearward end of return connecting rod and kickstand flexibly connects; The nearly middle part of the return pedal 12 among Fig. 6 then flexibly connects with the kickstand 1 of projection, and rearward end and 21 flexible connections of return connecting rod.All these schemes can both realize return pedal and the mutual interlock of return depression bar.

It is worthy of note, in the unidirectional variable transmission mechanism of present embodiment, between the little tooth 17 of power gear 16 and speed change, speed change canine tooth 18 is taken turns and drive wheel 13 between can adopt full engaged transmission (see figure 7), also can adopt chain gear and engaged transmission (see figure 8).In addition, in the present embodiment, bar also can affixed one be turned in power depression bar lower end, and this turns the bar other end and is fixed on the extension of inner ring of ratchet or on the ratchet shaft, this moment, the effect of power gear can directly be played in the outer ring of ratchet, thereby can cancel independently power gear.Ratchet among the figure can be replaced by unilateral bearing.

Embodiment 2: scratch the double dynamical scooter of plate return type.

The scooter of present embodiment is seen Fig. 9-10 for scratching the double dynamical scooter arrangements of plate return type, all has the power depression bar identical with embodiment 1, Active foot plate, limit pull rod etc.In Fig. 9, power depression bar 4 is front and back two covers, and be connected as a single entity, directly constitute and scratch plate structure, on one, form the other side's return mechanism in the interlock once again mutually, takeoff output and transmission have independently two cover ratchets, 15 systems, be also referred to as the two ratchet structures of different axle, article two, an end of power depression bar 14 is movably connected on the outer ring of the two ratchets 15 of different axle respectively by axle, variable transmission mechanism comprises respectively and two two power gear 16 of ratchet 15 coaxial bonded assemblys of different axle, coaxial two change speed pinions 17 and the speed change big gear wheel 18 that is connected on the kickstand, wherein two power gear 16 are in transmission connection by two closed chains 19 and two change speed pinions 17 respectively, and speed change big gear wheel 18 is in transmission connection with drive wheel 13 by another closed chain 20.Among Figure 10, power depression bar 4 also is front and back two covers, and coaxial being movably connected on the kickstand, being provided with connection pull back spring 23 between the two, front and back two power depression bars also can form and scratch plate structure like this, on one, in the interlock once, constitute the other side's return mechanism each other, when a side was in the return state, elastomeric resistance can be zero or very little, but in the structure of Figure 10, can adopt the forward and backward method of stepping on that depresses simultaneously, its takeoff output is identical with variable transmission mechanism and Fig. 9.The connection pull back spring 23 of Fig. 9-10 can adopt the torsion spring structure.

In fact, embodiment 1 described all kinds of scratching in the plate return type single action power scooter arrangements, all can be on the return depression bar outputting power of adjunction dynamic link and become and scratch the double dynamical scooter of plate return type.

Embodiment 3: elastic force return type single action power scooter.

The scooter of present embodiment is an elastic force return type single action power scooter arrangements, sees Figure 11.Its particular point is that the return mechanism of the power depression bar 4 of Figure 11 scooter adopts extension spring 24 structures that are connected between power depression bar and the kickstand, also can adopt torsion spring shown in Figure 12 25 structures.Certainly Figure 11 scooter also can adopt stage clip structure, stretch cord structure shown in Figure 14 or Figure 15 and Figure 16 shown in footwear collude, the shoe cover structure.In fact, the return mechanism in all schemes described in the embodiment 1 all can adopt extension spring, stage clip, torsion spring, stretch cord, footwear to collude or the realization of shoe cover structure.

Embodiment 4: the double dynamical scooter of elastic force return type.

The scooter of present embodiment is the double dynamical scooter arrangements of elastic force return type, sees Figure 13-14.Compare with Figure 11, structure shown in Figure 13 goes out many covers and depresses system and corresponding dynamic link 14, two ratchet 15, power gear 16, closed chain 19.Figure 14 gives expression to, about be connected with 26, two stretch cords 26 of stretch cord on the two cover power depression bars 4 and be connected as a single entity, and hanging sleeve is on handlebar.Certainly, two stretch cords also can adopt two corresponding torsion springs to replace.In Figure 14, the dynamic link 14 that flexibly connects with two power depression bars 4 has two, the one end is movably connected on the outer ring of left and right pair of coaxial ratchet 15 respectively by axle, variable transmission mechanism comprises and two coaxial ratchet bonded assembly power gear 16, coaxial change speed pinion 17 and the speed change big gear wheel 18 that is connected on the kickstand, wherein power gear 16 is in transmission connection by closed chain 19 and change speed pinion 17, and speed change big gear wheel 18 is in transmission connection with drive wheel 13 by another closed chain 20.Have, the return mechanism of two cover power depression bars 4 also can adopt the footwear that are located on power depression bar or the Active foot plate to collude 27 structures (referring to Figure 16) or shoe cover 28 structures (seeing Figure 15) again.But, the expressed double dynamical scooter of elastic force return type of Figure 13-14 can only be that its back wheels of vehicle is two three-wheels of taking turns or four-wheel scooter, and promptly the rear wheel of scooter should have two.

Embodiment 5: collude, overlap return type single action power or double dynamical scooter.

The scooter of present embodiment is for colluding, overlap return type single action power or double dynamical scooter arrangements.The first, the return mechanism of the foregoing description 1 and embodiment 3 all can adopt the footwear that are located on power depression bar or the Active foot plate to collude 27 structures (referring to Figure 16) or shoe cover 28 structures (seeing Figure 15), colludes, overlaps return type single action power scooter thereby constitute.Just as described in example 4 above, the return mechanism of the two cover power depression bars 4 of Figure 13-14 also can adopt the footwear that are located on power depression bar or the Active foot plate to collude 27 structures (referring to Figure 16) or shoe cover 28 structures (seeing Figure 15), colludes, overlaps the double dynamical scooter of return type thereby constitute.Figure 16 is for colluding a return type left side, right double dynamical scooter arrangements, wherein, takeoff output adopts coaxial pair of ratchet structure with transmission, that is: two power depression bars 4 respectively are connected with a dynamic link 14, article two, an end of dynamic link is movably connected in a coaxial left side respectively by axle, on the outer ring of right two ratchets 15, variable transmission mechanism comprises and two coaxial ratchet bonded assembly power gear 16, coaxial change speed pinion 17 and the speed change big gear wheel 18 that is connected on the kickstand, wherein power gear 16 is in transmission connection by closed chain 19 with change speed pinion 17, and speed change big gear wheel 18 is in transmission connection by another closed chain 20 with drive wheel 13.The trailing wheel 3 of Figure 16 structure is two.

Be pointed out that also the described the utility model structure of the foregoing description 1-5 can be used for two taking turns, three-wheel or four-wheel scooter (containing slide plate).The Active foot plate of the described the utility model structure of embodiment 1-5 and power speed changing transmission device part all can be provided with burst disk.In addition, the first, the length of the Active foot plate positive stop end 8 among all embodiment of the utility model also can be designed as and equates substantially with the length of laborsaving end 9 or greater than the length of laborsaving end 9; Second, on the pedal of all structures of the utility model, all anti-skidding block can be installed, make people's the forward foot in a step or the rear foot be difficult on pedal, sliding forward or backward, can be provided with also that ditch is poor on the surface of pedal, projection, raised line or be bonded with skidproof rubber, plastic material layer etc.; The 3rd, especially what deserves to be mentioned is, the desired location of ratchet of the present utility model (one-way wheel) on being set in power gear axle shown in the drawings, also can be located on the variable gear, or even be located on the drive wheel of axletree, so the plan of establishment of unidirectional mechanism is many, the scheme of front position, midway location or position, back is arranged; Have again, Power train of the present utility model is except can adopting the reciprocating type connecting rod Power train shown in this Figure of description, can also adopt following existing Power train: 1. rack-gear type structure, such as the dynamic link in the utility model is designed to the arc-shaped rack structure, it is the arcuate structure in the center of circle that this arc-shaped rack can be designed as with power depression bar axle center, the one end be connected with the kinetic pressure lever linkage after scratch on the bar, when the power depression bar depresses, arc-shaped rack moves up, drive is engaged with power gear and rotates, power gear drives coaxial ratchet, ratchet drives by secondary transmission gear affixed on the ratchet outer ring again and rotates, then by the chain gear drive wheel; Certainly, also can adopt as the disclosed arc-shaped rack gear type transmission of Chinese patent ZL200620064095.4 structure; 2. curved bar+flywheel+change-gear set the structure that adopts as Chinese patent ZL01222047.7,3. as the structure that spurs of the two ends drag-line that adopts of Chinese patent ZL01237990.5 and ZL01135643.X or chain, and 4. pusher extending type structure etc.; The 6th, the utility model can also increase electric drive system or be the drive system of power with the fuel oil, makes product that two or more propulsions source be arranged.

Claims

1. scooter with gradient pedal, it includes kickstand (1), front and back wheel (2,3), be movably connected in the power depression bar (4) on the kickstand top, can make the power depression bar return mechanism (A) that an end of power depression bar upwards scratches and be arranged on Power train assembly between the drive wheel (13) on power depression bar (4) and the axletree, the upper end that it is characterized in that power depression bar (4) is connected with Active foot plate (7) and makes this Active foot plate be divided into Active foot plate positive stop end and the laborsaving end two parts of Active foot plate by axle (6), between the front portion of Active foot plate positive stop end and kickstand, be provided with can restraint pedal action radius limit pull rod (10), when Active foot plate is positioned at most significant bit, the degree of dip (H) of Active foot plate (7) is the 15-45 degree, and the adapter shaft that the length of limit pull rod (10) equals Active foot plate and limit pull rod walks to the garden arc radius of the formed circular arc stroke of nadir from vertex.

2. according to the described scooter of claim 1, it is characterized in that when Active foot plate is positioned at most significant bit that the best inclination (H) of Active foot plate (7) is the 25-35 degree.

3. according to the described scooter of claim 1, it is characterized in that its Power train assembly has the dynamic link (14) that flexibly connects with power depression bar (4), the other end of dynamic link (14) is in transmission connection by the drive wheel on unidirectional variable transmission mechanism and the axletree (13) again.

4. according to claim 1,2 or 3 described scooters, it is characterized in that power depression bar return mechanism (A) constitutes by return depression bar (11) with the return pedal (12) of return depression bar interlock, return depression bar (11) and power depression bar (4) constitute can be each other on one, once scratch plank frame.

5. according to the described scooter of claim 4, it is characterized in that the structure of return depression bar, return pedal and power depression bar, Active foot plate and connection mode is identical and return mechanism each other, article two, be connected with two dynamic links (14) under the power depression bar (4), the other end of two dynamic links is in transmission connection by the drive wheel on unidirectional variable transmission mechanism and the axletree (13) again.

6. according to claim 1,2 or 3 described scooters, it is characterized in that power depression bar return mechanism (A) is made of the extension spring, stage clip, torsion spring or the stretch cord that are located on the power depression bar.

7. according to the described scooter of claim 6, the limit pull rod that it is characterized in that power depression bar, Active foot plate, elastic force return mechanism and restraint pedal action radius is two covers, be installed on the kickstand, article two, be connected with two dynamic links (14) under the power depression bar (4), the other end of two dynamic links is in transmission connection by the drive wheel on unidirectional variable transmission mechanism and the axletree (13) again.

8. according to claim 1,2 or 3 described scooters, it is characterized in that footwear on power depression bar or the Active foot plate collude power depression bar return mechanism (A) or shoe cover constitutes by being located at.

9. described according to Claim 8 scooter, the limit pull rod that it is characterized in that power depression bar, Active foot plate, colludes shell type return mechanism and restraint pedal action radius is two covers, be installed on the kickstand, article two, be connected with two dynamic links (14) under the power depression bar (4), the other end of two dynamic links is in transmission connection by the drive wheel on unidirectional variable transmission mechanism and the axletree (13) again.

10. according to the described scooter of claim 1, it is characterized in that the Power train assembly adopts pinion and-rack structure of the prior art, power depression bar both sides stay cord or chain extending type structure or slide bar extending type structure.