CN105952814A - Transmission system for two-wheeled vehicle powered manually - Google Patents

Abstract

The invention relates to the technical field of bicycles, and discloses a transmission system for a two-wheeled vehicle powered manually. In order to fulfill two flywheel functions on the same flywheel, the technical scheme is provided as follows: the transmission system for the two-wheeled vehicle powered manually is characterized by comprising a ratchet wheel (4), a wheel cover (5) and two action components, wherein the ratchet wheel (4) is provided with ratchet teeth; each action component comprises a switching handle (6), a rotating shaft (7), a pawl (8), a steel ball (9) and a spring (10); a driven gear (1), each spring (10), the corresponding steel ball (9) and the corresponding pawl (8) are propped against one another sequentially; and each rotating shaft (7) is rotatably connected with the wheel cover (5), extends out of the wheel cover (5), and is connected with the corresponding switching handle (6). The transmission system for the two-wheeled vehicle powered manually has the beneficial effects that by switching, the two-wheeled vehicle powered manually can be in a mode of a common bicycle, can also be in a mode of a fixed gear bicycle, and can even be in an innovative reversing mode.

Description

A kind of drive system of two wheel rickshaw

Technical field

The present invention relates to bicycle and the technical field of dead driving, be specifically related to the biography of a kind of two wheel rickshaw Dynamic system.

Background technology

Bicycle is that ordinary people is gone out the most common vehicles ridden instead of walk.

In recent years, society occurs in that again a kind of atypical moving vehicle quite liked by some modish teenager: Dead driving；Dead driving also referred to as extremely flies bicycle or teeth consolidating car, is collectively referred to as dead driving below.

Dead driving is slightly seen like common bicycle, but through comparing, has a following situation: 1. dead driving Forward steps on pedal, vehicle just marches forward；The advancing dead driving of forward, if reversely stepping on pedal, its The moment, the vehicle that start stop forward, continue reversely to step on pedal, then vehicle rearward movement.2. the most certainly Forward steps on pedal, vehicle just marches forward in driving；The most progressive ordinary bicycle, steps on if reversely stepped on Plate, in addition to the sound sending " ", has no effect, vehicle according to original inertia continue to Front motion.

Driven gear is also referred to as flywheel.

The dead driving of prior art, is only suitable for playing in spacious unmanned place, it is impossible to as ordinary bicycle Use；Dead driving in moving ahead, if reversely stepping on pedal, vehicle stops moving ahead and transporting backward immediately Dynamic；If traffic safety on road, can be brought great hidden danger and danger as cycling by dead driving Evil.

A lot of people i.e. like the ordinary bicycle as walking-replacing tool, like again to entertain the dead driving played；So And, under conditions of prior art, if it is desired to realize the functional purpose of two kinds of vehicles simultaneously, gather around the most in the lump There are ordinary bicycle and dead driving, and the functional purpose of two kinds of vehicles cannot be realized on a car.In other words, It is desirable to a human powered vehicle to use as ordinary bicycle, can use as dead driving again；But, In the prior art, the flywheel of ordinary bicycle and the flywheel of dead driving, the rwo has different use mesh And structural principle, it is impossible on same flywheel, have the function of two kinds of flywheels concurrently.

Summary of the invention

In order to solve to have concurrently the technical problem of two kinds of flywheel functions on same flywheel, the present invention propose with Lower technical scheme.

1. a drive system for two wheel rickshaw, including driven gear assembly and rear wheel；Described is passive Gear assembly includes: driven gear, installs axle, and flower-drum；

Described system includes: ratchet and pawl arrangement；

Described ratchet and pawl arrangement includes: be provided with the ratchet of hook tooth, wheel cap, and two set action components； Often set action component all includes: switching handle, rotary shaft, ratchet, steel ball, and spring；

Two described set action components, it is symmetricly set on driven gear；

Described driven gear, described installation axle, described flower-drum, described ratchet, in this Mandrel line overlap；Described flower-drum is rotationally connected with installing axle；Described ratchet, it is fixing with flower-drum is connected, It is rotationally connected with driven gear；

Described driven gear arranges boss structure；The symmetrical action sky offering hollow out in described boss structure Between, and offer spring mounting hole at the top of motion space；

Described ratchet, it is positioned in motion space, its symmetrical shape, in splayed above it, Left part below arranges left part pawl teeth, and right part below arranges right part pawl teeth, around placed in the middle Position arranges rotary shaft, and it is fixed with the body portion of rotary shaft and is connected；

First end of rotary shaft is rotationally connected with driven gear；

Described spring and steel ball are positioned at spring mounting hole, and the upper end of spring offsets with driven gear elasticity, The lower end of spring offsets with steel ball top elasticity, and steel ball bottom offsets with ratchet；

Described wheel cap is fixing with driven gear to be connected；

Described rotary shaft, it is rotationally connected with wheel cap, its second end stretch out outside wheel cap and with Switching handle connects；

Variation switching handle, can contact with hook tooth with shear for left part pawl teeth, it is also possible to shear is right part Pawl teeth contacts with hook tooth.

2. the spring mounting hole described in is any one in following two:

A. described spring mounting hole is blind hole；

The upper end of spring offsets with the bottom resilient of blind hole, and the lower end of spring offsets with steel ball top elasticity, steel Pearl bottom offsets with ratchet；

B. described spring mounting hole is for offering through hole, and accompanies installation sealing process part；

Steel ball bottom offsets with ratchet, and the lower end of spring offsets with steel ball top elasticity, and the upper end of spring is with blind The sealing process part elasticity in hole offsets, and sealing process part is fixing with boss structure to be connected.

3. the wheel cap described in and boss structure are fixing to be connected, and its method of attachment is any one in following four Person:

A. installation screw is used to be fixedly connected；

B. binding agent is used to carry out connection is adhesively fixed；

C. rivet is used to carry out riveting fixing connection；

D. welding is used to be fixedly connected.

4. the rotary shaft described in and described ratchet, they splits manufacture；Or, described rotary shaft and institute The ratchet stated is integrated manufacture.

5. the second end of the rotary shaft described in is connected with switching handle, its concrete condition be following in both times Meaning one:

A. the second end of rotary shaft and switching handle) fixing it is connected；

B. the second end of rotary shaft is that telescopic plug is connected with switching handle；

C. the second end of rotary shaft and switching handle are for being rotationally connected.

The invention has the beneficial effects as follows:

By rotating switching handle, invention system can be made to enter ordinary bicycle pattern, it is also possible to enter dead Driving pattern, even can also pass into the reversing mode of innovation；In other words, apply the present invention, same Two wheel rickshaw, can switch to common bicycle running, it is also possible to switches to dead driving to play, also may be used To switch to unprecedented purely reversing to seek pleasure.

Accompanying drawing explanation

Fig. 1 is the flower-drum assembly of a certain prior art bicycle；

Fig. 2 is the right view of Fig. 1；

Fig. 3 is the schematic diagram of a certain prior art bicycle driven gear, and be numbered 1w is outer ring, mark Number for 1n be inner ring；

Fig. 4 is the left view of Fig. 3；

Fig. 5 is the schematic diagram after flower-drum 3 head screws in driven gear (label 1) inner ring (label 1n)；

Fig. 6 is that the vehicle support body of bicycle inserts the schematic diagram installing axle 2；

Fig. 7 is that the vehicle support body of bicycle inserts installation axle 2 and the schematic diagram at two ends fastening nut；

Fig. 8 is the schematic diagram that the gear teeth rotate forward, flower-drum 3 also rotates forward of driven gear 1；

Fig. 9 is that the gear teeth of driven gear 1 rotate backward and schematic diagram that flower-drum does not rotate；

Figure 10 is one of invention system schematic diagram in embodiment one；

Figure 11 is the left view of Figure 10；

Figure 12 is the rearview of Figure 10；

Figure 13 be the A-A of Figure 10 to sectional view, this figure has made 2:1 processing and amplifying, the rotary shaft in figure and Ratchet is split manufacture；

Figure 14 is the variation diagram of Figure 13, and rotary shaft and ratchet in figure are changed to integrally manufactured；

Figure 15 is the schematic diagram after Figure 10 removes wheel cap；

Figure 16 is rotary shaft and the schematic perspective view of ratchet, the rotary shaft in this figure and ratchet in embodiment one It is integrated manufacture；

Figure 17 is rotary shaft and the front view of ratchet in embodiment one, and rotary shaft and ratchet in this figure are one Body manufactures；

Figure 18 is the left view of Figure 17；

Figure 19 is the right view of Figure 17；

Figure 20 is the top view of Figure 17, and it is arc-shaped curved surface that the dotted line in figure represents herein；

Figure 21 is the upward view of Figure 17；

Figure 22 is the schematic perspective view of driven gear in embodiment one；

Figure 23 is one of schematic perspective view of ratchet in embodiment one；

Figure 24 is in embodiment one the two of the schematic perspective view of ratchet, the observation place of this figure and the sight of Figure 23 Examine position 180 ° of angles of difference；

Figure 25 is that Figure 15 carries out the schematic diagram that refinement is drawn；

Figure 26 is the partial enlarged drawing in Figure 25 at I, and amplification ratio is classified as 2:1, and the ratchet in figure has been made to be coated with Black process；

Figure 27 is one of ratchet schematic diagram of carrying out rotating；

Figure 28 is that ratchet carries out the two of the schematic diagram rotated；

Figure 29 is one of passive tooth crop rotation schematic diagram rotating forward situation in embodiment one, in figure on ratchet Blacking dot be identification point, the right part pawl teeth in figure contacts with hook tooth；

Figure 30 is the two of the schematic diagram that in embodiment one, passive tooth crop rotation rotates forward situation；

One of passive tooth crop rotation schematic diagram rotating backward situation in Figure 31 embodiment one, the right part spine in figure Blade tooth contacts with hook tooth；

In Figure 32 embodiment one, passive tooth crop rotation rotates backward the two of the schematic diagram of situation；

In Figure 33 embodiment one, passive tooth crop rotation rotates backward the three of the schematic diagram of situation；

In Figure 34 embodiment one, passive tooth crop rotation rotates backward the four of the schematic diagram of situation；

In Figure 35 embodiment one, passive tooth crop rotation rotates backward the five of the schematic diagram of situation；

In Figure 36 embodiment one, passive tooth crop rotation rotates backward the six of the schematic diagram of situation；

Figure 37 is one of schematic diagram that in embodiment one, left part pawl teeth contacts with hook tooth, passive in figure Gear rotates forward clockwise；

Figure 38 is the two of the schematic diagram that in embodiment one, left part pawl teeth contacts with hook tooth, passive in figure Gear rotates backward counterclockwise；

Figure 39 is the invention system schematic diagram in embodiment two；

Figure 40 is the partial enlarged drawing in Figure 39 at II, and amplification ratio is classified as 1.8:1；

Schematic diagram in Figure 41 embodiment three；

Schematic diagram in Figure 42 embodiment five；

Figure 43 is that in embodiment six, rotary shaft the second end is the schematic diagram being rotationally connected with switching handle；

Figure 44 is the schematic diagram that the rotary shaft in Figure 43 is drawn with switching handle removal；

Figure 45 is the right view of 44；

Figure 46 is to switch handle in Figure 44 to have rotated the schematic diagram of 90 ° of angles；

Figure 47 is the invention schematic diagram in embodiment seven；

Figure 48 is the flower-drum schematic diagram in Figure 47；

Figure 49 is the retainer ring in Figure 47；

Figure 50 is the right view of Figure 49；

Figure 51 is the variation diagram of Figure 50；

Figure 52 is one of schematic diagram in embodiment 11, is also the evolution of Figure 30；

Figure 53 is two of the schematic diagram in embodiment 11；

Figure 54 is three of the schematic diagram in embodiment 11；

Figure 55 is four of the schematic diagram in embodiment 11；

Figure 56 is five of the schematic diagram in embodiment 11；

Figure 57 is one of schematic diagram in embodiment 12；

Figure 58 is two of the schematic diagram in embodiment 12；

Figure 59 is three of the schematic diagram in embodiment 12；

Figure 60 is one of schematic diagram in embodiment 13；

Figure 61 is two of the schematic diagram in embodiment 13；

Schematic diagram in Figure 62 embodiment 14；

Figure 63 is the partial enlarged drawing in Figure 62 at III, and magnification ratio is 3:1；

Figure 64 is one of schematic perspective view of ratchet 4 in Figure 62；

Figure 65 is in Figure 62 the two of the schematic perspective view of ratchet 4.

Label declaration in figure

Driven gear (1)；Boss structure (1a)；Motion space (1b)；Spring mounting hole (1c)；Bullet Spring installing hole (1c-1)；Outer ring (1w)；Inner ring (1n)；Axle (2) is installed；Flower-drum (3)；Flower-drum (3-1)； First external screw thread (3a)；Second external screw thread (3b)；Ratchet (4)；Wheel cap (5)；Switching handle (6)； Rotary shaft (7)；Ratchet (8)；Left part pawl teeth (8a)；Right part pawl teeth (8b)；Steel ball (9)；Spring (10)；Vehicle support body (20)；Vehicle support body (20-1)；Cushion block (21)；Retainer ring (31)；Roll Steel ball (41)；Rolling steel ball (42)；Groove (51)；Groove (52)；Junction (AN1)；Junction (AN1-1)；Junction (AN2)；Junction (AN2-1)；Junction (AN3)；Junction (AN3-1)； The limit (A) of triangle；The limit (B) of triangle；The limit (C) of triangle；Force position (J1)；Effect Force (J2)；Gap (JX).

The present invention is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.

Detailed description of the invention

In order to illustrate the principle of the present invention, it is necessary first to ordinary bicycle and the quilt of dead driving to prior art Moving gear structural principle is had gained some understanding.

The ordinary bicycle of prior art, user steps on pedal so that driving gear rotates, and passes through chain Bar imparts power to driven gear.If forward steps on pedal, then driving gear and chain positive movement, Driven gear also rotates forward and drives rear wheel rolls forward；If reversely stepping on pedal, then actively Gear and chain adverse movement, now, driven gear is only reversely idle running, and the rolling to rear wheel is not produced Raw impact.

In order to well understand above content, introduce in more detail below in conjunction with accompanying drawing and illustrate.

Fig. 1 is the flower-drum assembly of a certain prior art bicycle, and this assembly includes: flower-drum 3, install axle 2, And it is drawn in two nuts at two ends.Flower-drum 3 is in dumbbell shaped, and every one end is respectively arranged with a head, and head is offered External screw thread；Flower-drum 3 and installation axle 2 are for being rotationally connected, specifically: each head and installation axle Between be provided with a circle steel ball, its situation is similar to bearing, i.e. the inner ring of bearing be equivalent to install axle.

Fig. 2 is the right view of Fig. 1；In figure, the small sircle hole of a circle is used for installing many steel wires, these steel wires The other end is fixing with the steel ring of rear wheel to be connected.The bicycle that car load installs, if flower-drum rotates, then Rear wheel and the equal synchronous axial system of steel ring thereof.

Fig. 3 is the schematic diagram of a certain prior art bicycle driven gear 1, and Fig. 4 is the left view of Fig. 3. Driven gear 1 also referred to as flywheel.Driven gear 1 includes outer ring 1w and inner ring 1n.The outer ring of driven gear 1 1w has tooth, and tooth is connected by meshing transmission with chain.The inner ring 1n of driven gear 1 has offered female thread, This female thread and the external screw thread of flower-drum head, they threaded engagement；The female thread of driven gear inner ring 1n is just To rotating on the external screw thread screwing in flower-drum head, and cyclist's forward rides bicycle when, more rotation The tightest, from without falling off situation about getting off.

The outer ring 1w of driven gear 1 and the inner ring of driven gear 1n, their relation is: work as driven gear When the outer ring 1w of 1 rotates forward, its inner ring 1n is forced to rotate forward；Outer ring 1w when driven gear 1 When rotating backward, its inner ring 1n does not rotates and sends the sound of " ".

Fig. 5 is the schematic diagram after flower-drum 3 head screws in driven gear 1 inner ring 1n；Fig. 6 is bicycle Vehicle support body 20 inserts the schematic diagram installing axle 2；Fig. 7 is that the vehicle support body 20 of bicycle inserts installation axle 2 and at the schematic diagram of two ends fastening nut.

Fig. 8 is the schematic diagram that the gear teeth rotate forward, flower-drum 3 also rotates forward of driven gear 1；Fig. 8 In flower-drum dotted lines；The situation that Fig. 8 is equivalent in the figure 7, observes from right to left.Fig. 8 In the gear teeth that represent on driven gear 1 of solid line upward arrow rotate forward, under dotted line, arrow represents flower-drum forward Rotate.

Fig. 9 is that the gear teeth of driven gear 1 rotate backward and schematic diagram that flower-drum does not rotate, the arrow in figure Head represents the reverse lost motion of the gear teeth of driven gear 1.

It is described above the situation of prior art ordinary bicycle；Below, the dead driving of prior art is introduced Situation.

The driven gear of dead driving is very simple, does not has the design of outer ring and inner ring etc.；The passive tooth of dead driving Wheel, its outward flange is circle gear teeth, and these gear teeth link with chain engaged transmission；The driven gear of dead driving, Its central part is fixing with flower-drum to be connected, no matter and rotate forward or reversion, it is intended to ensure the steady of fixing connection Appropriate reliably.

For dead driving, there are following three kinds of situations:

If 1. forward steps on pedal, then driving gear rotates forward, chain positive movement, driven gear Also rotating forward, flower-drum rotates forward, rear wheel rolls forward.

If the most reversely stepping on pedal, then driving gear rotates backward, chain adverse movement, driven gear Also rotating backward, flower-drum rotates backward, and rear wheel rolls backward.

3. the dead driving in motion, if slamming pedal, then driving gear is motionless, and chain does not moves, quilt Moving gear is motionless, and flower-drum is motionless, and rear wheel is to not rolling.Therefore, the dead driving in motion, if stepped on Live pedal to remain stationary as, it is simply that dead driving is braked, and, general dead driving enters with this exactly Row brake, the unspecial braking mechanism arranged, this is also enjoyment and the glamour place of dead driving.

Below by way of multiple embodiments technical solution of the present invention illustrated and explain.

Embodiment one

First, the invention system in the present embodiment one is made overall word to be described as follows.

The invention system of the present embodiment includes driven gear assembly and rear wheel；Described driven gear assembly bag Include: driven gear 1, axle 2, and flower-drum 3 are installed.Note: driven gear is also referred to as flywheel.

Vehicle support body 20 is fixing annexation with the two ends installing axle 2；Body portion and the flower-drum of axle 2 are installed 3 is the relation being rotationally connected.

Above-mentioned parts, are highly developed in the prior art, before also made considerable Jie Continue.

The content being described below, is the special technology contributed of the present invention.

The invention system of the present embodiment also includes: ratchet and pawl arrangement；

Described ratchet and pawl arrangement includes: be provided with the ratchet 4 of hook tooth, wheel cap 5, and two set actions Parts；Often set action component all includes: switching handle 6, rotary shaft 7, ratchet 8, steel ball 9, and bullet Spring 10；

Two described set action components, it is symmetricly set on driven gear 1；

Described driven gear 1, described installation axle 2, described flower-drum 3, described ratchet 4, these are four years old The central axis of person is overlapping；Described flower-drum 3 is rotationally connected with installing axle 2；Described ratchet 4, its with Flower-drum 3 is fixing to be connected, and it is rotationally connected with driven gear 1；

Described driven gear 1 arranges boss structure 1a；In described boss structure 1a, symmetry offers hollow out Motion space 1b, and offer spring mounting hole 1c at the top of motion space 1b；

Described ratchet 8, it is positioned in the 1b of motion space, and its symmetrical shape, in eight above it Font, left part below arranges left part pawl teeth 8a, and right part below arranges right part pawl teeth 8b, Middle position around arranges rotary shaft 7, and it is fixed with the body portion of rotary shaft 7 and is connected；

First end of rotary shaft 7 is rotationally connected with driven gear 1；

Described spring 10 and steel ball 9 are positioned at spring mounting hole 1c, the upper end of spring 10 and passive tooth Taking turns 1 elasticity to offset, the lower end of spring 10 offsets with steel ball 9 top elasticity, steel ball 9 bottom and ratchet 8 Offset；

Described wheel cap 5 is fixing with driven gear 1 to be connected；

Described rotary shaft 7, it is rotationally connected with wheel cap 5, its second end stretch out outside wheel cap 5 and It is connected with switching handle 6；

Variation switching handle 6, can contact with hook tooth 4 with shear for left part pawl teeth 8a, it is also possible to cut Become right part pawl teeth 8b to contact with hook tooth 4.

For above content, illustrate below in conjunction with several drawings and explain.Description and interpretation divide four Part is carried out.

Part I: kernel component, and their mutual relation.

Figure 10 is one of invention system schematic diagram in the present embodiment one；Figure 11 is the left view of Figure 10； Figure 12 is the rearview of Figure 10；Figure 13 be the A-A of Figure 10 to sectional view, this figure has been made at 2:1 amplification Reason, rotary shaft and ratchet in figure are split manufacture；Figure 14 is the variation diagram of Figure 13, the rotary shaft in figure It is changed to integrally manufactured with ratchet；Figure 15 is the schematic diagram after Figure 10 removes wheel cap.

It will be seen that there are two set action components to be symmetricly set on driven gear 1 from above-mentioned drawing, and every A set of action component all includes: switching handle 6, rotary shaft 7, ratchet 8, steel ball 9, and spring 10.

Rotary shaft 7 and ratchet 8 can be integrally manufactured, as shown in figure 14.

Rotary shaft 7 and ratchet 8 can also be split manufactures, as shown in figure 13；If rotary shaft 7 and spine Pawl 8 is that split manufactures, and during manufacture, can offer through hole on ratchet 8, and the body portion of rotary shaft 7 is positioned at In through hole, the two ends of rotary shaft 7 are respectively outside ratchet 8；Further, rotary shaft 7 and ratchet 8 must be solid Fixed connection.

Figure 16 is rotary shaft and the schematic perspective view of ratchet, the rotary shaft in this figure and spine in the present embodiment one Pawl is integrated manufacture；Figure 17 is rotary shaft and the front view of ratchet, the rotation in this figure in the present embodiment one Axle and ratchet are integrated manufacture；Figure 18 is the left view of Figure 17；Figure 19 is the right view of Figure 17；Figure 20 is the top view of Figure 17, and it is arc-shaped curved surface that the dotted line in figure represents herein；Figure 21 is looking up of Figure 17 Figure.

Figure 22 is the schematic perspective view of driven gear in embodiment one；Figure 23 is the vertical of ratchet in embodiment one One of body schematic diagram；Figure 24 is in embodiment one the two of the schematic perspective view of ratchet, the observation place of this figure 180 ° of angles are differed with the observation place of Figure 23.

Part II: the switching change of ratchet 8.

Figure 25 is that Figure 15 carries out the schematic diagram that refinement is drawn；Figure 26 is the partial enlargement in Figure 25 at I Figure, amplification ratio is classified as 2:1, and for the ease of setting, the ratchet in Figure 26 has made blacking process, after also There is the ratchet in other several drawings also to make blacking process, illustrate the most one by one.

Variation switching handle 6, can contact with hook tooth with shear for left part pawl teeth 8a, it is also possible to shear Contact with hook tooth for right part pawl teeth 8b；To this, it is described as follows.

See the top of Figure 10, have the switching handle being numbered 6.Assume: before switching handle 6 is not operating, The situation of ratchet 8 is as shown in figure 26, it may be assumed that right part pawl teeth 8b of ratchet 8 contacts with hook tooth.

Return in Figure 10, hold switching handle 6 top to anticlockwise, then ratchet 8 becomes Figure 27, figure The state of 28；Figure 27 is transition, unstable momentary status, and Figure 28 is stable state.Figure 28 In, shear becomes left part pawl teeth 8a of ratchet 8 and contacts with hook tooth.

Part III: the principle of the core action of invention.

This Part III a set of action component superposed to Figure 25 illustrates and explains；Figure 25 is positioned at The another set of action component of bottom, its principle duplicates, no longer repeats.

Situation 1. contacts and driven gear 1a forward with hook tooth in right part pawl teeth 8b of ratchet 8 In the case of rotation, the explanation of relevant action.

See Figure 29.For the ease of setting operating position, the little of a blacking drawn by the ratchet 4 in Figure 29 Round dot, after also have the ratchet 4 in other several drawings also to make same process, illustrate the most one by one.

In Figure 29, set: the gear teeth of driven gear 1a are under the drive of chain, to rotate clockwise as just To rotation, as shown in the arrow of figure middle and upper part.When the gear teeth of driven gear 1a are clockwise to Figure 30 The situation that during shown position, right part pawl teeth 8b of ratchet 8 contacts with hook tooth, offset is constant；Also It is exactly to say: the gear teeth of driven gear 1a rotate forward clockwise, drives hook tooth to rotate forward the most clockwise, And make flower-drum 3 rotate forward the most clockwise, thus drive the rear wheel of vehicle to move ahead.Illustrate: some spine The gear teeth rotate, it is meant that whole hook tooths rotates, and the most whole ratchet 4 rotates.

In above-mentioned situation: the upper end of spring 10 offsets with driven gear 1a elasticity, the lower end of spring 10 with Steel ball 9 top elasticity offsets, and steel ball 9 bottom offsets with ratchet 8.

Driven gear 1a can only be followed about ratchet and rotate forward the principle of situation, reality below clockwise Execute in example embodiment 11, also further instruction.

Situation 2. contacts with hook tooth and driven gear 1a is reverse in right part pawl teeth 8b of ratchet 8 In the case of rotation, the explanation of relevant action.

Figure 31, the gear teeth of driven gear 1a rotate backward counterclockwise, as shown in the upper arrow in Figure 31. Figure 31 is original state；From Figure 31 to Figure 36, along with driven gear 1a reversely progressively rotates counterclockwise, Right part pawl teeth 8b contacts also with progressively changing with hook tooth: from the close contact of Figure 31, to Small gap occurs, to big gap, to departing from, to crossing crown, occurring again being in close contact to last；But, When again there is close contact (see Figure 36), driven gear 1a and ratchet have dallied a ratchet The position of tooth.During the aforesaid hook tooth that dallied, ratchet does not rotates and driven gear 1a There occurs and rotate backward counterclockwise.Therefore, driven gear 1a rotates backward as idle running dynamic counterclockwise, to spine Wheel 4 does not produce impact.

Situation 3. contacts and the wheel of driven gear 1a with hook tooth in left part pawl teeth 8a of ratchet 8 In the case of tooth rotates forward clockwise, the explanation of relevant action.

See Figure 37；Conclusion is that the gear teeth of driven gear 1a rotate forward as idle running dynamic, to ratchet not clockwise Produce impact.

Situation 4. contacts and the wheel of driven gear 1a with hook tooth in left part pawl teeth 8a of ratchet 8 In the case of tooth rotates backward counterclockwise, the explanation of relevant action.

See Figure 38；It is concluded that the gear teeth of driven gear 1a rotate backward counterclockwise, hook tooth is driven to make inverse Hour hands rotate backward, and its effect is to drive flower-drum 3 to rotate backward the most counterclockwise, the final rear car driving vehicle Take turns backward backward.

From above description and interpretation, it is appreciated that: a set of action component in top relating in Figure 25, Any one situation in following four situation can occur:

A. right part pawl teeth 8b contacts with hook tooth, and the gear teeth of driven gear 1a rotate forward clockwise, spine Wheel rotates forward the most clockwise；

B. right part pawl teeth 8b contacts with hook tooth, and the gear teeth of driven gear 1a the most reversely dally, right Ratchet does not produce impact；

C. left part pawl teeth 8a contacts with hook tooth, and the gear teeth forward clockwise idle running of driven gear 1a is dynamic, Ratchet 4 is not produced impact；

D. left part pawl teeth 8a contacts with hook tooth, and the gear teeth of driven gear 1a rotate backward counterclockwise, spine Wheel 4 rotates backward the most counterclockwise.

Part IV: the selection of type of action and cooperation.

In Part III, we are to a set of action component superposed in Figure 25, be illustrated and Explain, thus learnt tetra-kinds of situations of a, b, c, d.

But, a set of action component is also arranged at the bottom of Figure 25, and therefore, two set action components can have eight kinds Situation.

Hereinafter, we introduce ordinary bicycle pattern, dead driving pattern, reversing mode.

1. ordinary bicycle pattern

In order to realize the pattern of ordinary bicycle, two set action components can all be switched to right part ratchet by us Tooth 8b contacts with hook tooth, and its result is: driven gear 1a rotates forward clockwise, ratchet 4 also up time Pin rotates forward；Driven gear 1a the most reversely dallies, and ratchet 4 is not produced impact.

Action component a set of for the bottom in Figure 25, when discussing analysis, can rotate 180 ° by figure Angle, makes a set of action component of bottom rotate to discussing above, the most convenient, but also be not easy to get wrong.

2. dead driving pattern

In order to realize the pattern of dead driving, we can select to coordinate as follows:

Switch to right part pawl teeth 8b to contact with hook tooth a set of action component, thus realize driven gear The gear teeth of 1a are when rotating forward clockwise, and ratchet 4 rotates forward the most clockwise, and works as driven gear When the gear teeth of 1a are made reversely to dally counterclockwise, ratchet 4 is not produced impact.

Switch to left part pawl teeth 8a to contact with hook tooth by another set of, thus realize the wheel of driven gear 1a When tooth rotates backward counterclockwise, ratchet 4 rotates backward the most counterclockwise, and the gear teeth of driven gear 1a are suitable When hour hands rotate forward, ratchet 4 is not produced impact.

After two set action components have made switching as above, setting, no matter the gear teeth forward of driven gear 1a turns Dynamic or driven gear 1a gear teeth rotate backward, ratchet 4 all the time with driven gear 1a synchronous axial system, Thus realize the functional purpose of dead driving.

3. reversing mode

If all switching to left part pawl teeth 8a to contact with hook tooth two set action components, its result is: The gear teeth of driven gear 1a rotate backward counterclockwise, and ratchet 4 rotates backward the most counterclockwise；Driven gear 1a Gear teeth forward clockwise idle running, ratchet 4 is not produced impact.

Above-mentioned reversing mode is the new mode innovating out, its reverse pedal, vehicle backward, and forward Pedal is idle running, and vehicle to run does not produce impact.

Embodiment two

The present embodiment illustrates: how ratchet 4 is fixed with flower-drum 3 is connected.

Illustrate in conjunction with Figure 39 and Figure 40.Figure 39 is the invention system schematic diagram in the present embodiment two； Figure 40 is the partial enlarged drawing in Figure 39 at II, and amplification ratio is classified as 1.8:1；

In Figure 39 and Figure 40, label 3 is prior art flower-drum, and its head offers external screw thread.

Be numbered 4 be the ratchet 4 of the present invention, it offers female thread.

Identical with prior art mounting technology: the female thread screwing into ratchet 4 of flower-drum, and execute Power screws.

Unlike prior art mounting technology: before above-mentioned assembling, first coat external screw thread with viscose, or Coating female thread, or coating internal and external screw thread, then by the female thread screwing into ratchet 4 of flower-drum, And force screws.Further, viscose select for double-component or three components.

After having assembled, stand a period of time, after viscose generation chemical reaction, will thoroughly solidify.

Relying on internal and external threads and viscose effect, ratchet 4 can realize the most fixing connection with flower-drum 3.

Figure is numbered 21 be cushion block.

Embodiment three

The present embodiment illustrates again: how ratchet 4 is fixed with flower-drum 3 is connected.

Illustrate in conjunction with Figure 41.In the present embodiment, need the flower-drum of prior art is transformed, Its head cancels external screw thread, changes the cone of light grade into, left large and right small；Female thread cancelled by ratchet 4, changes For the round taper hole of light grade, aperture is left large and right small.The slope of flower-drum and the ramp shaped of ratchet 4 coincide, And the gradient coordinates.

Assemble at the gradient of front double-component or three component viscoses coating flower-drum and at the gradient of ratchet 4, then Both being closed up, and use fixture, when clamping, a period of time of standing, viscose occurs chemistry anti- Ying Hou, thoroughly solidify.

Relying on multicomponent viscose effect, ratchet 4 can realize the most fixing connection with flower-drum 3.

Embodiment four

The present embodiment introduces the situation of spring mounting hole 1c.

The first situation, spring mounting hole 1c is blind hole.

As shown in Figure 13, Figure 14 and Figure 15, spring mounting hole 1c is blind hole.

During assembling, it is initially charged with spring 10, refills steel ball 9, then carry out other assembly work.

The second situation, spring mounting hole 1c is through hole.

As shown in figure 22, spring mounting hole 1c is through hole.

Carrying out after ratchet 8 grade tentatively assembles, then be initially charged with steel ball 9 from the aperture of through hole, be then charged into Spring 10；Sealing process part is finally installed.

Sealing process part can be a screw；So, then need on through hole, offer female thread, screw in After screw, the upper end of spring offsets with screw elasticity.

Sealing process part can also be a upper coarse and lower fine tapered pin；Pin inserts in through hole, so Rear force impact pin, owing in both contact positions, cotter diameter is big and through-hole diameter is little, and pin is outside Extruding, therefore pin and boss structure 1a can be made to produce the fixing effect connected.After fixing connection, spring The bottom resilient of upper end and pin offset.

Embodiment five

Rotary shaft and ratchet, the rwo can be fabricated to one, as Figure 16, Figure 17, Figure 18, Figure 19, Shown in Figure 20, Figure 21.Figure 16 is rotary shaft and the schematic perspective view of ratchet in embodiment one, in this figure Rotary shaft and ratchet be integrated manufacture；Figure 17 is rotary shaft and the front view of ratchet in embodiment one, this Rotary shaft and ratchet in figure are integrated manufacture；Figure 18 is the left view of Figure 17；Figure 19 is the right side of Figure 17 View；Figure 20 is the top view of Figure 17, and it is arc-shaped curved surface that the dotted line in figure represents herein；Figure 21 is figure The upward view of 17；

Rotary shaft and ratchet, the rwo can also be that split manufactures, as shown in figure 42.Turning in Figure 42 After moving axis and ratchet manufacture respectively, rotary shaft is inserted in the hole of ratchet, and makes rotary shaft and ratchet solid Fixed connection.

Rotary shaft and the fixing connection of ratchet, its concrete fixed connection method is a lot, such as, in the hole of ratchet In offer female thread, offer external screw thread in the subregion of rotary shaft, and at the position that external screw thread will terminate, Screw thread is made to shoal.Rotary shaft screws in the screw of ratchet, and when in place of the screw thread that shoals, then strength continues rotation Turn, so achieve a fixed connection.The most such as, rotary shaft is inserted in the hole of ratchet, more solid after electric welding sinters Fixed connection.For another example, rotary shaft is fabricated to tapered, microcephaly is inserted in the hole of ratchet, then impact Stub end, relies on both Interference sizes in contact position to coordinate and carries out fixing connection.

Embodiment six

The present embodiment introduces the situation that the second end of rotary shaft is connected with switching handle.

The first situation, the second end of rotary shaft is fixing with switching handle to be connected, and its concrete grammar is a lot, than As, it is possible to use screw is by both fixing connections.

The second situation, the second end of rotary shaft is that telescopic plug is connected with switching handle, and its body method can To be: the second end of rotary shaft is fabricated to cross section is square, switching handle is square sleeve, switching Front insertion sleeve, then switches over；Sleeve is extracted after having switched.Can also be fabricated to the second end cut Face is hexagonal, and switching handle is hexagonal sleeve, etc..

The third situation, the second end of rotary shaft and switching handle are for being rotationally connected；At ordinary times, the of rotary shaft Two ends and switching handle angle in 90 °, so have the advantage that: the space taken is little, i.e. rotary shaft 7 Axially take up room little；And when needing switching, handle half-twist angle will be switched, then cut Change；After finishing switching, then switching handle is made to be rotated back to 90 ° of angles.Afore-mentioned can in conjunction with Figure 43, Figure 44, Figure 45 and Figure 46 understand.Figure 43 is rotary shaft the second end with switching handle for being rotationally connected Schematic diagram；Figure 44 is the schematic diagram that the rotary shaft in Figure 43 is drawn with switching handle removal；Figure 45 is The right view of 44；Figure 46 is to switch handle in Figure 44 to have rotated the schematic diagram of 90 ° of angles.

When switching handle have rotated 90 ° of angles as shown in figure 46, now, it is possible to by switching handle Implement to rotate to rotary shaft 7, thus ratchet 8 is in the state of Figure 26 or Figure 27；Ratchet 8 has adjusted Finish, then switching handle is rotated back to 90 ° of angles, as shown in figure 44, switching handle so can be made to account for Width locus less.

Embodiment seven

The present embodiment illustrates: how ratchet 4 is fixed with flower-drum 3 is connected.

See Figure 47, Figure 48, Figure 49, Figure 50, Figure 49 and Figure 52.

Figure 47 is the invention schematic diagram in the present embodiment seven；Figure 48 is the flower-drum schematic diagram in Figure 47；Figure 49 is the retainer ring in Figure 47；Figure 50 is the right view of Figure 49；Figure 51 is the variation diagram of Figure 50.

In the present embodiment seven, the head on flower-drum 3 right side, for hollow two sections cylindric, i.e. cylinder has Step.

Offer the first external screw thread 3a of forward on cylinder with large diameter, ratchet 4 is offered the first female thread, the One external screw thread and the first female thread not only threaded engagement, and when ratchet 4 rotates forward, have and more turn more Tight character, until stuck.

Offer the second reverse external screw thread 3b in small diameter cylinders, retainer ring is offered the second female thread, the Two external screw threads and the second female thread threaded engagement, retainer ring not only screws, and when ratchet 4 rotates backward, There is the tendency of clamping further.Reverse screw thread, also referred to as left-hand thread.

During assembling, first by the first external screw thread 3a on flower-drum 3 cylinder with large diameter and first on ratchet 4 Female thread revolves mutually, is screwed into, and applies external force clamping；It is then charged into retainer ring, then applies external force clamping；? Carry out with vehicle support body 20 afterwards assembling, fixing be connected.

Due to the relation of structure, may seem inconvenient when retainer ring is assembled, so in Figure 50, right Retainer ring has offered three small gaps；Assembling uses instrument or simple machine exert a force at small gap, make solid Determine ring to rotate and screw.Can also make change to the situation of Figure 50, three small gaps are changed into three little Pit, uses instrument or simple machine to exert a force at small rut, makes retainer ring rotate and screw in assembling.

In described above, the first external screw thread 3a and the first female thread are forward screw thread, the second external screw thread 3b It is reverse thread with the second female thread.If change arranges also possible, i.e. change into: the first external screw thread 3a and the first female thread are reverse thread, and the second external screw thread 3b and the second female thread are forward screw thread.

The hollow interior of flower-drum 3 is installed with installation axle 2；Between flower-drum 3 and installation axle 2 by multiple steel balls in fact Now it is rotationally connected, its structural principle approximation bearing.Flower-drum 3, multiple steel ball, install axle 2, this three it Between the prior art of structural principle and bicycle duplicate.

Embodiment eight

The bicycle of a certain prior art is reequiped.

The bicycle of a certain prior art, the flower-drum 3 of its rear frame portion, installation axle 2, driven gear 1 and The situations such as vehicle support body 20-1 are as shown in Figure 6.

Now by driven gear and ratchet and pawl arrangement that driven gear change is the present invention of prior art etc.； Situation after change is as shown in figure 39.

In Figure 39, ratchet and pawl arrangement includes: be provided with the ratchet 4 of hook tooth, wheel cap 5, and two sets Action component；Often set action component all includes: switching handle 6, rotary shaft 7, ratchet 8, steel ball 9, with And spring 10；Two set action components are symmetricly set on driven gear 1.

Variation switching handle 6, can contact with hook tooth with shear for left part pawl teeth 8a, as shown in figure 28； Can also shear be that right part pawl teeth 8b contacts with hook tooth, as shown in figure 26.

See Figure 25；Owing to there being two set action components, namely there are two switching handles 6 and two ratchets 8, So a ratchet 8 being switched over control by a switching handle 6, the left part of ratchet 8 both can be made Pawl teeth 8a contacts with hook tooth, it is possible to so that right part pawl teeth 8b of ratchet 8 contacts with hook tooth.

Various switch instances are described below.

1. all switching to right part pawl teeth 8b to contact with hook tooth when two set action components, this is the most voluntarily Car pattern, i.e. cyclist's forward step on pedal, and vehicle is advanced forward；Vehicle in moving ahead, if reversely stepped on Dynamic pedal is idle running, does not the most affect vehicle and continues to move ahead.

2. when switching to: right part pawl teeth 8b of a hook tooth contacts with hook tooth, another hook tooth Left part pawl teeth 8a contact with hook tooth, this is dead driving pattern；That is: cyclist's forward steps on pedal, Vehicle is advanced forward；Cyclist reversely steps on pedal, vehicle backward backward.

3. all switching to left part pawl teeth 8a to contact with hook tooth when two set action components, this is reversing mode, I.e. cyclist reversely steps on pedal, vehicle backward backward；If it is empty that the vehicle forward in falling afterwards steps on pedal Turning, it does not affect vehicle and continues backward backward.Reversing mode is the use pattern that uniqueness of the present invention is created.

Embodiment nine

In above-described embodiment eight, it is that the bicycle to a certain prior art is transformed.The present embodiment is to bring up Newfashioned two wheel rickshaw；The vehicle structure transforming result in embodiment eight is source by we, and batch is raw Produce the trendy two wheel rickshaw of this spline structure.So, trendy two wheel rickshaw by the switching to hook tooth, Trendy two wheel rickshaw can be used as bicycle, it is also possible to using trendy two wheel rickshaw as dead driving Use, it is also possible to as use of purely moveing backward.

Embodiment ten

The present embodiment ten, the method for reference example eight, dead driving is transformed.Checkmate the passive of driving Gear is changed, and the driven gear of the present invention and ratchet and pawl arrangement etc. is changed；Situation after changing is shown in figure Shown in 47.

It addition, brake gear to be added to vehicle, to guarantee driving safety.

Vehicle after changing, in addition to still keeping the function of dead driving, also add the function of bicycle, with And add the function of purely reversing.

Embodiment 11

In embodiment one, when the gear teeth of driven gear 1a are clockwise to the position shown in Figure 30, Drive hook tooth to rotate forward the most clockwise, and make flower-drum 3 rotate forward the most clockwise, thus drive vehicle Rear wheel move ahead.

For above description, now it is further described and analyzes.

See Figure 52.Figure 52 is the evolution of Figure 30；In Figure 52, ratchet is not made blacking and is processed, and Figure also adds the triangle with A, B, C as limit.

In the triangle of Figure 52, first drift angle is the center of rotation of ratchet 8, and second drift angle is spine The center of rotation of wheel 4, the 3rd drift angle is the force position J1 of hook tooth and ratchet 8.

The force position of label J1 is: right part pawl teeth 8b and the application point of hook tooth.

In Figure 52, the gear teeth of driven gear 1a rotate clockwise, and by ratchet 8, drive hook tooth Rotate forward the most clockwise；Imagination: in the case of the gear teeth of driven gear 1a rotate clockwise, if Hook tooth rotate forward the most clockwise？Conclusion is cannot！Principle is as follows.

In Figure 52, A adds B, it is clear that more than C, so hook tooth must follow the right part ratchet of ratchet 8 Tooth 8b rotates forward clockwise.

If wanting hook tooth to rotate forward the most clockwise, i.e. hook tooth is made inverse relative to right part pawl teeth 8b Hour hands adverse movement, its condition must being fulfilled for is: A+B≤C.A+B ＜ C, represents and has gap between the two； A+B=C, represents gapless between the two, in qualified critical point, the most permissible.

3rd drift angle is hook tooth and the force position of ratchet 8, depicts the feelings of the second in Figure 53 Condition.The force position of label J2 is: the right side outward flange of ratchet 8 and the application point of hook tooth.

3rd drift angle is hook tooth and the force position of ratchet 8, depicts the third feelings in Figure 54 Condition；In Figure 54, force position has at two: J1 and J2.J1 is right part pawl teeth 8b and hook tooth Application point；J2 is the right side outward flange application point with hook tooth of ratchet 8.

In above introduction, the left side outward flange of ratchet 8 and right side outward flange, be all outwardly circle Arc；If the left side outward flange of ratchet 8 and right side outward flange, the circular arc not being outwardly is also can With, such as situations below.

In Figure 55, outward flange is linear, there is the force position of the non-J1 of label.

In Figure 56, outward flange is the circular arc caved inward, and there is also the force position of the non-J1 of label.

Except above-mentioned outward flange is linear or the circular arc caved inward, it is also possible to by other shape, Due to the relation of length, repeat the most one by one.

Although the left side outward flange of ratchet 8 and right side outward flange can use linear, or the circle caved inward Arc；But patent of the present invention still recommends outwardly circular arc, such each side technique effect Will be more preferably.

Embodiment 12

In the present embodiment 12, wheel cap 5 is connected with the fixing of boss structure 1a, is described below several Plant concrete condition.

1. see Figure 57；In the position of label AN1 and AN1-1, use and screw is installed by wheel cap 5 with convex Platform structure 1a is fixedly connected.Specific practice is, in these two positions, offers the wheel cap 5 on upper strata Through hole is installed, the boss structure 1a of lower floor is offered installation screw, then use installation screw to screw in and twist Tightly, thus realize wheel cap 5 and be connected with the fixing of boss structure 1a.

Position except label AN1 and AN1-1, it is also possible to the position adding other again uses installation screw to enter Row is fixing to be connected.

2. see Figure 57；In the position of label AN1 and AN1-1, rivet is used to be tied with boss by wheel cap 5 Structure 1a is fixedly connected.Specific practice is, in these two positions, to wheel cap 5 upper strata offer installation Through hole, offers through hole to lower floor boss structure 1a, is then led to through the installation of wheel cap 5 in the body portion of rivet Hole and the through hole through boss structure 1a, and expose the nail tail of rivet；Then, manufactured head is being withstood In the case of portion, impact rivet nail tail.Rivet point spreading after impact, must not move, thus realize wheel Lid 5 is connected with the fixing of boss structure 1a.

Position except label AN1 and AN1-1, it is also possible to the position adding other again uses rivet to carry out admittedly Fixed connection.

3. see Figure 58；In the position of label AN2 and AN2-1, weld；Or, except at mark The position of number AN2 and AN2-1 is welded, and the also point of addition at other welds.By welding, Realize wheel cap 5 to be connected with the fixing of boss structure 1a.

4. see Figure 59；In the position that label AN3 and AN3-1 thick lines illustrate, binding agent is used to carry out Connection is adhesively fixed；Or, except boning in the position of label AN3 and AN3-1, also other Point of addition carries out connection is adhesively fixed.By bonding, it is achieved the fixing company of wheel cap 5 and boss structure 1a Connect.Binding agent uses multi-component relatively good.

Embodiment 13

It is situation about being rotationally connected about ratchet 4 and driven gear 1, is explained as follows.

For ratchet 4 with both driven gears 1, their annexation is for being rotationally connected；But, this Plant the relation that is rotationally connected and be affected by what ratchet 8 limited；Concrete limited case and various rotation situation, Can directly learn in above multiple embodiments or indirect analysis is learnt.

Figure 60 is that the structure of Figure 13 has been made change；In Figure 60, between ratchet 4 and driven gear 1 Adding, be provided with rolling steel ball 41, these rolling steel balls 41 are arranged in a circle.

Compared with Figure 13, in Figure 60, ratchet 4 is more smoothly with relatively rotating of driven gear 1, flexible.

It addition, in figure 61, it is provided with two circle rolling steel balls；First lap be numbered 41, it is arranged on Between ratchet 4 and driven gear 1；Second circle be numbered 42, its be arranged on ratchet 4 and wheel cap 5 it Between.Compared with Figure 60, in Figure 61, ratchet 4 is more smooth and easy with relatively rotating of driven gear 1, flexible.

Embodiment 14

Being situation about being rotationally connected about ratchet 4 and driven gear 1, the present embodiment 14 illustrates again As follows.

See Figure 62.In Figure 62, not only it is provided with two circle rolling steel balls, and the shape and structure of ratchet 4 Also different with previously described.

Figure 63 is the partial enlarged drawing in Figure 62 at III, and magnification ratio is 3:1.

Figure 64 is one of schematic perspective view of ratchet 4 in Figure 62；Figure 64 is numbered 51 be annular Groove, the cross section semicircular in shape of groove or the cross section of groove are circular arc；In the groove of label 51 It is provided with a circle rolling steel ball.

Figure 65 is in Figure 62 the two of the schematic perspective view of ratchet 4, the observation place of this figure and the sight of Figure 64 Examine position 180 ° of angles of difference, i.e. Figure 64 is front viewing angle, and Figure 65 is posterior view point.Figure is numbered 52 be the groove of annular, the cross section semicircular in shape of groove or the cross section of groove are circular arc；Mark It also is provided with a circle rolling steel ball in the groove of numbers 52.

In Figure 63, be numbered JX is gap.See Figure 62 and Figure 63, the right part of flower-drum 3 head with Ratchet 4 is threadably secured connection, exist between left part and the driven gear 1 of flower-drum 3 head the least between Gap.Closely spaced technical meaning is: if gapless, then hamper between ratchet 4 and driven gear 1 Rotate；There is small-gap suture, be possible not only to make the rotation between ratchet 4 and driven gear 1 not hinder, Er Qieke With in the case of by large impact, it is ensured that driven gear 1, installation axle 2, flower-drum 3 and ratchet 4, This central axis still overlap.

Claims (5)

1. a drive system for two wheel rickshaw, including driven gear assembly and rear wheel；Described is passive Gear assembly includes: driven gear (1), installs axle (2), and flower-drum (3)；

It is characterized in that:

Described system includes: ratchet and pawl arrangement；

Described ratchet and pawl arrangement includes: be provided with the ratchet (4) of hook tooth, wheel cap (5), and two sets Action component；Often set action component all includes: switching handle (6), rotary shaft (7), ratchet (8), steel Pearl (9), and spring (10)；

Two described set action components, it is symmetricly set on driven gear (1)；

Described driven gear (1), described installation axle (2), described flower-drum (3), described ratchet (4), this central axis is overlapping；Described flower-drum (3) is rotationally connected with installing axle (2)；Institute The ratchet (4) stated, it is fixing with flower-drum (3) is connected, and it is rotationally connected with driven gear (1)；

Described driven gear (1) arranges boss structure (1a)；Symmetry in described boss structure (1a) Offer the motion space (1b) of hollow out, and offer spring mounting hole (1c) at the top of motion space (1b)；

Described ratchet (8), it is positioned in motion space (1b), and its symmetrical shape, above it In splayed, left part below arranges left part pawl teeth (8a), and right part below arranges right part pawl teeth (8b), middle position around arranges rotary shaft (7), and it is fixed with the body portion of rotary shaft (7) and is connected；

First end of rotary shaft (7) is rotationally connected with driven gear (1)；

Described spring (10) and steel ball (9) are positioned at spring mounting hole (1c), spring (10) Upper end offsets with driven gear (1) elasticity, and the lower end of spring (10) offsets with steel ball (9) top elasticity, Steel ball (9) bottom offsets with ratchet (8)；

Described wheel cap (5) is fixing with driven gear (1) to be connected；

Described rotary shaft (7), it is rotationally connected with wheel cap (5), and its second end stretches out in wheel cap (5) Outside and with switching handle (6) be connected；

Variation switching handle (6), can contact with hook tooth (4) with shear for left part pawl teeth (8a), Can also shear be that right part pawl teeth (8b) contacts with hook tooth (4).

The drive system of a kind of two wheel rickshaw the most according to claim 1, is characterized in that:

Described spring mounting hole (1c) is any one in following two:

A. described spring mounting hole (1c) is blind hole；

The upper end of spring (10) offsets with the bottom resilient of blind hole, the lower end of spring (10) and steel ball (9) Top elasticity offsets, and steel ball (9) bottom offsets with ratchet；

B. described spring mounting hole (1c) is for offering through hole, and accompanies installation sealing process part；

Steel ball (9) bottom offsets with ratchet, and the lower end of spring (10) offsets with steel ball (9) top elasticity, The upper end of spring (10) offsets with the sealing process part elasticity of blind hole, sealing process part and boss structure (1a) fixing connection.

The drive system of a kind of two wheel rickshaw the most according to claim 1, is characterized in that: described Wheel cap (5) is fixing with boss structure (1a) to be connected, and its method of attachment is any one in following four:

A. installation screw is used to be fixedly connected；

B. binding agent is used to carry out connection is adhesively fixed；

C. rivet is used to carry out riveting fixing connection；

D. welding is used to be fixedly connected.

The drive system of a kind of two wheel rickshaw the most according to claim 1, is characterized in that:

Described rotary shaft (7) and described ratchet (8), they splits manufacture；Or, described turns Moving axis (7) and described ratchet (8) are integrated manufacture.

The drive system of a kind of two wheel rickshaw the most according to claim 1, is characterized in that:

Second end of described rotary shaft (7) is connected with switching handle (6), and its concrete condition is following two Any one in person:

A. the second end of rotary shaft (7) is fixing with switching handle (6) is connected；

B. the second end of rotary shaft (7) is that telescopic plug is connected with switching handle (6)；

C. the second end of rotary shaft (7) and switching handle (6) are for being rotationally connected.