CN209321164U

CN209321164U - A kind of handle Double-directional rotary driving safety-type front-and-back drive bicycle of front-wheel

Info

Publication number: CN209321164U
Application number: CN201821137306.1U
Authority: CN
Inventors: 王小东
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-18
Filing date: 2018-07-18
Publication date: 2019-08-30
Anticipated expiration: 2028-07-18

Abstract

A kind of handle Double-directional rotary disclosed by the utility model drives the safety-type front-and-back drive bicycle of front-wheel, including bicycle body, reversing arrangement, front-wheel drive and symmetrically arranged handle device, rotation arm assembly and cursor locking device；Reversing arrangement both ends pass through cursor locking device and are equipped with rotation arm assembly, respective handle device is installed on rotation arm assembly, cursor locking device locks holding rod with the cursor of handle device by steel wire and is connected, reversing arrangement is mounted on vehicle frame by the reversing arrangement mounting rod on reversing arrangement bracket, gear set in reversing arrangement is meshed with the rotation arm gear of rotation arm assembly, reversing arrangement is connected with front-wheel drive, and front-wheel drive is mounted in front-wheel fixing axle.The bicycle realizes that front and back wheel drives simultaneously, so that upper limb has obtained sufficient movement in ride by front-wheel drive mode.Meanwhile easy to operate, safety, and it is at low cost.

Description

A kind of handle Double-directional rotary driving safety-type front-and-back drive bicycle of front-wheel

Technical field

The utility model relates to field of vehicles more particularly to a kind of handle Double-directional rotary to drive the safety-type front and back of front-wheel Drive bicycle.

Background technique

With the continuous improvement of people's lives level, health care of body becomes the focus of people's growing interest, deposits at present Fitness equipment, be mostly to be fixed on a place, cannot at will move, not have the purpose of outdoor sports.It is thus more next More consumers is more likely to select the bicycle for integrating body-building, environmental protection, movement etc., and current bicycle is most Using rear wheel drive, it is only capable of lower limb driving, when riding cannot temper upper limb, and when upward slope relies only on lower limb driving, driving method list One, it is alternative insufficient, therefore upper limb effect can not be played, it cannot perform physical exercise to body builder's whole body, be unfavorable for the association of trick Allocation and transportation are dynamic, and the exercise effect more than leg including upper limb is unobvious, body cannot be made to obtain sufficient movement.It drives minimal amount of front and back Dynamic bicycle operation is difficult, unreasonable, dangerous, without solving safety problem when braking, turning.

Utility model content

In order to solve the above-mentioned technical problem the utility model, it is double to provide a kind of handle easy to operate, that security performance is high To the safety-type front-and-back drive bicycle of rotate driving front-wheel, which realizes that front and back wheel is driven simultaneously by a variety of driving methods It is dynamic, so that upper limb has obtained sufficient movement in ride.

The utility model is to be achieved through the following technical solutions:

A kind of handle Double-directional rotary drives the safety-type front-and-back drive bicycle of front-wheel, including bicycle body, reversing arrangement, Front-wheel drive and symmetrically arranged handle device, rotation arm assembly and cursor locking device；Reversing arrangement both ends are logical It crosses cursor locking device and rotation arm assembly is installed, rotate and respective handle device is installed on arm assembly, cursor locking Device locks holding rod with the cursor of handle device by steel wire and is connected, and reversing arrangement passes through the commutation dress on reversing arrangement bracket It sets mounting rod to be mounted on the vehicle frame of bicycle body, the rotation arm gear phase of the gear set in reversing arrangement and rotation arm assembly Engagement, reversing arrangement are connected with front-wheel drive, and front-wheel drive is mounted in front-wheel fixing axle.

The handle device includes handle body, cursor locking holding rod, brake holding rod, handle outboard bearing and handle Inboard bearing；It is provided with handle fixation hole in handle body, is equipped in handle fixation hole on the inside of handle outboard bearing and handle Bearing, handle outboard bearing and handle inboard bearing are sleeved on rotation arm body one end of rotation arm assembly, handle inboard bearing Inner ring on the outside of be equipped with handle inboard bearing teeth, cursor locking holding rod on is provided with locking holding rod ontology, bracing wire fixation hole It with holding rod fixation hole, locks and is provided with handlebar locked pawl below holding rod ontology, locking holding rod fixed station is provided in handle body With brake holding rod fixed station, locks and be provided with bracing wire hole, holding rod mounting hole and holding rod fixation hole on holding rod fixed station, cursor lock The locking holding rod ontology for determining holding rod passes through holding rod mounting hole and is mounted in holding rod mounting hole, and bolt passes through holding rod fixation hole and passes through Cursor locks the holding rod fixation hole on holding rod, and cursor locking holding rod is mounted in holding rod mounting hole；Handlebar locked pawl end End have a teeth, hand-held pole ontology is not held under when, the teeth of handlebar locked pawl end can be inserted in handle inboard bearing tooth In tooth, prevent handle body is from autobiography；When holding lower cursor locking holding rod, the teeth of handlebar locked pawl end can be out of handle It is separated in side bearing teeth, it is axis autobiography that handle body side, which can rotate arm body, is fixed on the holding rod fixed station that brakes Brake holding rod.

Bracing wire is connected on bracing wire fixation hole on cursor locking holding rod, the bracing wire other side connects cursor locking dress It sets, when holding lower locking holding rod ontology, bracing wire can pull the clip for limiting of cursor locking device to leave from latched position, so that Rotation arm body can also rotate, while the clip for limiting spring in cursor locking device is compressed；Unclamp locking holding rod sheet When body, under the action of clip for limiting spring stretches strength, clip for limiting responds immediately to latched position, while locking holding rod sheet Body is pulled up immediately, and the teeth of handlebar locked pawl end are inserted into handle inboard bearing teeth, rotates arm body and handle sheet Body is locked simultaneously, is not able to rotate.

It is provided with insurance mounting groove in the handle body, insures and cursor locking holding rod guarantor is installed in mounting groove Danger, it includes bumper bar, relief spring, safety handle and lock nut that cursor, which locks holding rod insurance,；Relief spring is through insurance On bar, safety handle is mounted on bumper bar one end, fixed with bumper bar by lock nut, and the bumper bar other end is wedge shape Convex is latched position when the boss is in cursor locking holding rod insurance lower section, for blocking cursor locking Holding rod cannot be held down；When pushing safety handle, bumper bar moves in insurance mounting groove, and relief spring is compressed, bumper bar Boss can leave latched position, cursor locking holding rod can be held down；When unclamping cursor locking holding rod, in insurance bullet Under the action of spring stretches strength, bumper bar automatically reverts to latched position immediately, and cursor locking holding rod, which is locked out, to be held down.

Cursor locking holding rod is mounted below brake holding rod and is additionally provided with brake on the position of finger tip, handle body Vehicle bar limited block, brake lever limited block are located at the lower section of brake holding rod.

The rotation arm assembly includes rotation arm body, rotation lock gear, rotation arm gear and two rotation arm axles It holds；Rotation arm body is " Z " word shape, and one end is equipped with handle device, and the other end is equipped with rotation lock gear, cursor tooth Wheel and two cursor bearings；Two cursor bearings are mounted in the cursor fixation hole of reversing arrangement, rotate lock gear Rotation arm body can be locked by, which matching with cursor locking device, is able to rotate it not, in rotation arm gear and reversing arrangement Gear engagement.

The cursor locking device includes pedestal, clip for limiting and clip for limiting spring；Bracing wire is provided on pedestal Hole, limit card slot and pedestal fixation hole, clip for limiting are equipped with limit claw and bracing wire mounting hole；Holding rod phase is locked with cursor The bracing wire hole that bracing wire one end of connection passes through on pedestal is mounted in the bracing wire mounting hole on clip for limiting, and clip for limiting spring is worn In bracing wire, clip for limiting and clip for limiting spring are installed in limit card slot, and cursor locking device passes through base bottom Pedestal fixation hole be fixed in the pedestal fixation hole on the fixed baffle on reversing arrangement, bracing wire is also cross on fixed baffle Bracing wire hole；

When holding lower cursor locking holding rod, make clip for limiting to moving inside limit card slot by bracing wire, position-limited claw Son is extracted out out of rotation lock gear teeth, and clip for limiting spring is compressed, and rotation arm body can rotate；Unclamp cursor When locking holding rod, under the action of clip for limiting spring, clip for limiting is moved to outside limit card slot, and limit claw is inserted into locking teeth It takes turns in teeth, so that rotation arm body is locked, under the action of clip for limiting spring stretches strength, cursor locks holding rod certainly It is dynamic to lift.

The reversing arrangement includes reversing arrangement bracket, tumbler gear group, commutation lever device and commutation lever top cover； Reversing arrangement bracket includes reversing arrangement mounting rod, four pieces of reversing arrangement mounting plates and two pieces of fixed baffles, reversing arrangement bracket Vertical bar be mounted on vehicle frame, both ends are mounted on fixed baffle on the cross bar of reversing arrangement bracket, offer on fixed baffle For cursor fixation hole, pedestal fixation hole and bracing wire hole, four pieces of reversing arrangement mounting plates are mounted on middle part, two pieces of commutations in outside Cursor fixation hole is provided on device mounting plate, two pieces of reversing arrangement mounting plates of inside are equipped with big chain plate fixation hole；Turn Two cursor bearings of swing arm ontology are mounted in two cursor fixation holes on reversing arrangement bracket；Tumbler gear group Tumbler gear group installation bearing is installed, tumbler gear group installation bearing holder (housing, cover) is used on rotation arm body in cursor mounting hole To install tumbler gear group；Commutation lever top cover is mounted on reversing arrangement bracket and changes among the four pieces of reversing arrangement mounting plates in middle part To the top of gear set；Commutation lever device is mounted in tumbler gear group.

The tumbler gear group includes tumbler gear fixed plate, up time pin gear, inverse time pin gear, transition gear and changes Bearing is installed to gear set；Cursor mounting hole, up time pin gear fixation hole, tooth counterclockwise are provided in tumbler gear fixed plate Take turns fixation hole, transition gear fixation hole, the fixed bracket of commutation bar and commutation bar fixed shaft hole；Up time pin gear, counterclockwise Gear, transition gear structure are identical, are divided into gear and rolling bearing two parts, and rolling bearing is sleeved on gear side On the axis of protrusion, up time pin gear, inverse time pin gear and transition gear pass through rolling bearing be mounted on it is right in gear mounting plate In the hole answered, tumbler gear group installation bearing is mounted in cursor mounting hole, and tumbler gear group installs bearing holder (housing, cover) mounted in rotation On arm body, the rotation arm gear of cursor body tip is meshed with inverse time pin gear and excessive gear simultaneously, tooth clockwise Wheel is meshed with transition gear, by pushing commutation lever device that tumbler gear fixed plate is driven to install bearing with tumbler gear group For axis rotation, one in gear clockwise or inverse time pin gear and big chain plate gear phase in front-wheel drive can be made Engagement.

The commutation lever device includes commutation lever ontology, commutation lever axis and commutation lever spring；Described changes It include commutation lever fixation hole and commutation lever handle to lever ontology；Commutation lever is provided with below commutation lever handle to fix Hole, commutation lever axis are mounted in the commutation bar fixed shaft hole in tumbler gear fixed plate, and commutation lever spring, which is mounted on, to be changed To on lever axis, commutation lever axis passes through the fixed commutation lever ontology of commutation lever fixation hole, pushes commutation lever handle can be with Drive tumbler gear group using tumbler gear group installation bearing as axis rotation, so that up time pin gear or inverse time pin gear In one be meshed with big chain plate gear in front-wheel drive；

Commutation lever top cover is mounted on above tumbler gear group, and commutation lever track is provided on the lever top cover that commutates and is changed To lever fixing groove；The lever ontology that commutates passes through the commutation lever track of commutation lever top cover；When bicycle is run, commutate lever Commutation lever ontology is fixed on commutation lever fixing groove bottom by the elasticity of spring, when needing to commutate, firmly to pull commutation shelves Commutation lever ontology is shifted onto commutation lever track from commutation lever fixing groove, pushes commutation lever ontology to another by bar handle In one commutation lever fixing groove, after loosing one's grip, commutation lever ontology is fixed on another commutation by the elasticity of commutation lever spring Lever fixing groove bottom.

The front-wheel drive includes big chain plate, big chain plate bearing, big chain plate gear, chain, front-wheel fixing axle, small Chain drum, small chain drum fixing bearing and front fork install bearing；Two big chain plate bearing holder (housing, cover)s are on the axis of big chain plate two sides, big chain plate Bearing is mounted in the big chain plate fixation hole of two reversing arrangement mounting plates of the inside on reversing arrangement, two side axle of big chain plate End is equipped with big chain plate gear, and big chain plate inner ring gear has ratchet bearing, similar to the flywheel of ordinary bicycle rear-wheel chain drum, So that rotation arm body can only drive big chain plate to rotate forward.It rotates forward and refers to that big chain plate rotation can drive front-wheel to forward It is dynamic.Front-wheel fixing axle is mounted in the fixation hole in front-wheel axle center, there is small chain drum fixation hole, small chain drum fixing bearing peace on small chain drum In small chain drum fixation hole, small chain drum fixing bearing is sleeved in front-wheel fixing axle, and for installing small chain drum, small chain drum is fixed Bearing is also ratchet class bearing, prevent from driving small chain drum to rotate when front-wheel is fallen back；Small chain drum and big chain plate pass through chain chain It connects, two front fork installation bearing outer rings are fluted, and front fork installs bearing holder (housing, cover) mounted in the two sides of front-wheel in front-wheel fixing axle, bicycle Front fork is mounted in the groove of front fork installation bearing outer ring.

The bicycle further includes barbed chair, barbed chair include seat fixed station, seat body, regulation handle and Regulation handle spring；Seat fixed link is equipped with below seat fixed station, seat fixed link is inserted on vehicle frame, on seat fixed station Equipped with seat rail slot and seat tooth plate；There is seat attachment rail in seat body, seat body is pacified by seat attachment rail Regulation handle mounting hole is provided in seat rail slot, in seat body, regulation handle is mounted on regulation handle mounting hole Interior, regulation handle spring pocket has male means in regulation handle in regulation handle, when bicycle is driven a vehicle, male means card In seat tooth plate, seat body cannot be slid back and forth；Pull regulation handle that can separate male means out of seat tooth plate, Regulation handle spring is compressed, and the seat attachment rail of seat body can slide back and forth in seat track groove, is unclamped and is adjusted After handle, under the action of regulation handle spring stretches strength, regulation handle is returned to initial position, and male means are stuck in seat In tooth plate, seat body is locked again；Backrest is additionally provided in seat body.

Compared with prior art, the utility model has technical effect beneficial below:

Handle Double-directional rotary provided by the utility model drives the safety-type front-and-back drive bicycle of front-wheel, is rotated by setting Arm, transmission shaft, reversing arrangement, locking device, handle rotating switch and the handle that can rotate to drive front-drive, when strong When body person rides upward slope, front and back wheel can be used while driving, not only played the effect of upper limb in this way, broken driving method Unicity, and body builder's whole body is taken exercise, conducive to the coordinated movement of various economic factors of trick.Meanwhile it being locked by setting cursor Only holding rod insurance, cursor locking holding rod and slightly unclamps rotation locking holding rod and can instantaneously lock the characteristic of handle and cursor It ensure that the safety driven.Meanwhile easy to operate, pattern and current bicycle are close only to the front-wheel increasing of existing bicycle Add reversing arrangement, therefore rationally, safety, and it is at low cost.

The bicycle locks holding rod by opening the insurance on handle device and holding the cursor on lower handle device always Afterwards, front-wheel drive can be carried out, when needing to brake, slightly handle is locked immediately after release cursor locking holding rod, ensure that The safety of brake, while the position by changing commutation lever can use a variety of front-wheel drive modes, realize front and back wheel simultaneously Driving, so that upper limb has obtained sufficient movement in ride.Meanwhile easy to operate, safety, and it is at low cost.

Detailed description of the invention

Fig. 1 is that handle Double-directional rotary drives the safety-type front-and-back drive bicycle structural schematic diagram of front-wheel；

Fig. 2 is handle device structural representation Fig. 1；

Fig. 3 is handle device structural representation Fig. 2；

Fig. 4 is handle body structural schematic diagram；

Fig. 5 is locking holding rod fixed station structural schematic diagram；

Fig. 6 is that cursor locks holding rod insurance mounting structure structural schematic diagram；

Fig. 7 is brake holding rod structural schematic diagram；

Fig. 8 is that cursor locks holding rod structural schematic diagram；

Fig. 9 is that cursor locks holding rod safety locked position structural schematic diagram；

Figure 10 is that cursor locks holding rod insurance open position structural representation Fig. 1；

Figure 11 is that cursor locks holding rod insurance open position structural representation Fig. 2；

Figure 12 is handle outboard bearing and the general bearing arrangement schematic diagram of this paper；

Figure 13 is handle inboard bearing structural schematic diagram；

Figure 14 is that each component of handle device assembles explosive view；

Figure 15 is to hold handlebar locked pawl position view when lower cursor locks holding rod；

Figure 16 is to unclamp handlebar locked pawl position view when cursor locks holding rod；

Figure 17 is cursor apparatus structure schematic diagram；

Figure 18 is rotation lock gear structural schematic diagram；

Figure 19 is cursor gear structure schematic diagram；

Figure 20 is each component of cursor and handle device assembling structure schematic diagram；

Figure 21 is rotation arm assembly scheme of installation on reversing arrangement；

Figure 22 is cursor locking device structure schematic diagram；

Figure 23 is cursor locking device base schematic diagram 1；

Figure 24 is cursor locking device base schematic diagram 2；

Figure 25 is limit clamp structures schematic diagram；

Figure 26 is each component scheme of installation of cursor locking device structure；

Figure 27 is cursor locking device scheme of installation on reversing arrangement；

Figure 28 is that rotation arm body limits claw position view when locked；

Figure 29 is reversing arrangement structural schematic diagram；

Figure 30 is reversing arrangement supporting structure schematic diagram；

Figure 31 is tumbler gear group structural schematic diagram；

Figure 32 is tumbler gear fixed plate structure schematic diagram；

Figure 33 is inverse time pin gear, up time pin gear and equipment gear structural schematic diagram；

Figure 34 is commutation lever body construction schematic diagram；

Figure 35 is commutation lever spring structure schematic diagram

Figure 36 is tumbler gear group and commutation lever device assembling schematic diagram；

Figure 37 is commutation lever cap structure schematic diagram；

Figure 38 is reversing arrangement, rotation arm assembly, handle device assembling schematic diagram；

Figure 39 is reversing arrangement, cursor, big chain plate assembling schematic diagram；

Figure 40 is tumbler gear group, rotation arm gear, big chain plate gear engagement sectional view；

Figure 41 is chain drum gear and gear engagement structure schematic diagram counterclockwise；

Figure 42 is chain drum gear and gear engagement structure schematic diagram clockwise；

Figure 43 is front-wheel drive structural schematic diagram；

Figure 44 is big chain plate structural schematic diagram；

Figure 45 is big chain plate assembling schematic diagram；

Figure 46 is front-wheel drive and reversing arrangement assembling schematic diagram；

Figure 47 is small chain box structure schematic diagram；

Figure 48 is that front fork installs bearing arrangement schematic diagram；

Figure 49 is small chain drum mounting structure schematic diagram；

Figure 50 is that small chain drum installs partial enlarged view；

Figure 51 is barbed chair structural schematic diagram；

Figure 52 is seat fixed station structural schematic diagram；

Figure 53 is seat body structural schematic diagram；

Figure 54 is seat regulation handle and regulation handle spring assembling structural schematic diagram.

Wherein, 1 is handle device；1-1 is handle body；1-1-1 is handle fixation hole；1-1-2 is that locking holding rod is fixed Platform；1-1-2-1 is bracing wire hole；1-1-2-2 is holding rod mounting hole；1-1-2-3 is holding rod fixation hole；1-1-3 is that brake holding rod is solid Determine platform；1-1-4 is insurance mounting groove；1-2 is that cursor locks holding rod, and 1-2-1 is locking holding rod ontology；1-2-2 is grip handle lock Determine pawl；1-2-3 is bracing wire fixation hole；1-2-4 is holding rod fixation hole；1-3 is brake holding rod；1-4 is that cursor locks holding rod guarantor Danger；1-4-1 is bumper bar；1-4-2 is relief spring；1-4-3 is safety handle；1-4-4 is lock nut；1-5 is outside handle Side bearing；1-6 is handle inboard bearing；1-6-1 is handle inboard bearing teeth；2 be rotation arm assembly；2-1 is cursor sheet Body；2-2 is rotation lock gear；2-3 is rotation arm gear；2-4 is cursor bearing；3 be cursor locking device；3-1 is Pedestal；3-1-1 is bracing wire hole；3-1-2 is limit card slot；3-1-3 is pedestal fixation hole；3-2 is clip for limiting；3-2-1 is limited Position claw；3-2-2 is bracing wire mounting hole；3-3 is clip for limiting spring；4 be reversing arrangement；4-1 is reversing arrangement bracket；4- 1-1 is fixed baffle；4-1-2 is cursor fixation hole；4-1-3 is big chain plate fixation hole；4-1-4 is reversing arrangement mounting rod； 4-1-5 is pedestal fixation hole；4-1-6 is bracing wire hole；4-2 is tumbler gear group；4-2-1 is tumbler gear fixed plate； 4-2- 1-1 is cursor mounting hole；4-2-1-2 is up time pin gear fixation hole；4-2-1-3 is inverse time pin gear fixation hole；4-2-1-4 For transition gear fixation hole；4-2-1-5 is the fixed bracket of commutation lever；4-2-1-6 is commutation lever fixed shaft hole；4-2-2 is Up time pin gear；4-2-3 is inverse time pin gear；4-2-4 is transition gear；4-2-5 is that tumbler gear group installs bearing；4-3 is Commutate lever device；4-3-1 is commutation lever ontology；4-3-1-1 is commutation lever fixation hole；4-3-1-2 is commutation lever hand Handle；4-3-2 is commutation lever axis；4-3-3 is commutation lever spring；4-4 is commutation lever top cover；4-4-1 is commutation lever rail Road；4-4-2 is commutation lever fixing groove；5 be front-wheel drive；5-1 is big chain plate；5-2 is big chain plate bearing；5-3 is big Chain drum gear；5-4 is chain；5-5 is front-wheel fixing axle；5-6 is small chain drum；5-6-1 is small chain drum fixation hole；5-7 is chainlet Disk fixing bearing；5-8 is that front fork installs bearing；6 be barbed chair；6-1 is seat fixed station；6-1-1 is seat fixed link；6- 1-2 is seat rail slot；6-1-3 is seat tooth plate；6-2 is seat body；6-2-1 is seat attachment rail；6-2-2 is to adjust Handle mounting hole；6-2-3 is backrest；6-3 is regulation handle；6-3-1 is male means；6-4 is regulation handle spring.

Specific embodiment

The utility model is described in further detail below with reference to specific embodiment, described is to the utility model Explanation rather than limit.

Referring to Fig. 1 to Figure 54, a kind of handle Double-directional rotary driving safety-type front-and-back drive bicycle of front-wheel, including bicycle Ontology, reversing arrangement 4, front-wheel drive 5 and symmetrically arranged handle device 1, rotation arm assembly 2 and cursor locking device 3；4 both ends of reversing arrangement pass through cursor locking device 3 and are equipped with rotation arm assembly 2, rotate and are equipped on arm assembly 2 respectively From handle device 1, cursor locking device 3 locks holding rod 1-2 by the cursor of steel wire and handle device 1 and is connected, commutation Device 4 is mounted on the vehicle frame of bicycle body by the reversing arrangement mounting rod 4-1-4 on reversing arrangement bracket 4-1, commutation Gear set in device 4 is meshed with the rotation arm gear 2-3 of rotation arm assembly 2,5 phase of reversing arrangement 4 and front-wheel drive Connection, front-wheel drive 5 are mounted on front-wheel fixing axle 5-5.

The handle device 1 includes handle body 1-1, cursor locking holding rod 1-2, brake holding rod 1-3, handle outside Bearing 1-5 and handle inboard bearing 1-6；Handle fixation hole 1-1-1, handle fixation hole 1-1-1 are provided on handle body 1-1 Handle outboard bearing 1-5 and handle inboard bearing 1-6, handle outboard bearing 1-5 and handle inboard bearing 1-6 suit are inside installed In one end rotation arm body 2-1 of rotation arm assembly 2, handle inboard bearing tooth is equipped on the outside of the inner ring of handle inboard bearing 1-6 Locking holding rod ontology 1-2-1, bracing wire fixation hole 1-2-3 and holding rod is provided on tooth 1-6-1, cursor locking holding rod 1-2 to fix It is provided with handlebar locked pawl 1-2-2 below hole 1-2-4, locking holding rod ontology 1-2-1, locking is provided on handle body 1-1 and holds Bar fixed station 1-1-2 and brake holding rod fixed station 1-1-3, lock holding rod fixed station 1-1-2 on be provided with bracing wire hole 1-1-2-1, The locking holding rod ontology 1-2-1 of holding rod mounting hole 1-1-2-2 and holding rod fixation hole 1-1-2-3, cursor locking holding rod 1-2 are passed through Holding rod mounting hole 1-1-2-2 is mounted in holding rod mounting hole 1-1-2-2, and bolt, which passes through holding rod fixation hole 1-1-2-3 and passes through, to be turned Swing arm locks the holding rod fixation hole 1-2-4 on holding rod 1-2, and cursor locking holding rod 1-2 is mounted on holding rod mounting hole 1-1-2-2 It is interior；There are a teeth in the end handlebar locked pawl 1-2-2, hand-held pole ontology 1-2-1 is not held under when, the end handlebar locked pawl 1-2-2 The teeth at end can be inserted in handle inboard bearing teeth 1-6-1, prevent handle body 1-1 is from autobiography；Hold lower cursor lock When determining holding rod 1-2-1, the teeth of the end handlebar locked pawl 1-2-2 can be separated out of handle inboard bearing teeth 1-6-1, It is axis autobiography that the hand ontology side 1-1, which can rotate arm body 2-1, and brake holding rod 1-3 is fixed on the holding rod fixed station 1-1-3 that brakes.

It is connected with bracing wire on bracing wire fixation hole 1-2-3 on cursor locking holding rod 1-2, the bracing wire other side connects cursor Locking device 3, when holding lower locking holding rod ontology 1-2-1, bracing wire can pull the clip for limiting 3-2 of cursor locking device 3 from Latched position is left, so that rotation arm body 2-1 can also be rotated by axis of cursor fixation hole 4-1-2, while cursor is locked The clip for limiting spring 3-3 determined in device 3 is compressed；When unclamping locking holding rod ontology 1-2-1, stretched in clip for limiting spring 3-3 Under the action of opening up strength, clip for limiting 3-2 responds immediately to latched position, while locking holding rod ontology 1-2-1 and being pulled up immediately, The teeth of the end handlebar locked pawl 1-2-2 are inserted into handle inboard bearing teeth 1-6-1, rotate arm body 2-1 and handle sheet Body 1-1 is locked simultaneously, is not able to rotate.

It is provided with insurance mounting groove 1-1-4 on the handle body 1-1, insures in mounting groove 1-1-4 and rotation is installed Arm locks holding rod and insures 1-4；It includes bumper bar 1-4-1, relief spring 1-4-2, safety handle that cursor, which locks holding rod insurance 1-4, 1-4-3 and lock nut 1-4-4；Relief spring 1-4-2 is through on bumper bar 1-4-1, and safety handle 1-4-3 is mounted on bumper bar One end, fixed by lock nut 1-4-4 and bumper bar 1-4-1, the bumper bar 1-4-1 other end is wedge-shaped protrusion shape, when It is latched position when the boss is in below cursor locking holding rod insurance 1-4, for blocking cursor locking holding rod 1-2 It cannot be held down；When pushing safety handle 1-4-3, bumper bar 1-4-1 is moved in insurance mounting groove 1-1-4, relief spring 1- 4-2 is compressed, and the boss of bumper bar 1-4-1 can leave latched position, and the cursor locking holding rod side 1-2 can be held down；It unclamps When cursor locks holding rod 1-2, under the action of relief spring 1-4-2 stretches strength, bumper bar 1-4-1 is automatically reverted to immediately Latched position, cursor locking holding rod 1-2, which is locked out, to be held down.

Cursor locking holding rod 1-2 is mounted below brake holding rod 1-3 and on the position of finger tip, handle body 1-2 It is additionally provided with brake lever limited block 1-1-5, brake lever limited block 1-1-5 is located at the lower section of brake holding rod 1-3.When brake holding rod When 1-3 holds extreme lower position, brake lever limited block 1-1-5 can withstand brake holding rod 1-3, it is ensured that cursor locks holding rod 1-2 not It can accidentally be touched.

The rotation arm assembly 2 includes rotation arm body 2-1, rotation lock gear 2-2, rotation arm gear 2-3 and two A cursor bearing 2-4；Rotation arm body 2-1 is " Z " word shape, and one end is equipped with handle device 1, and the other end is equipped with rotation Lock gear 2-2, rotation arm gear 2-3 and two cursor bearing 2-4；Two cursor bearing 2-4 are mounted on reversing arrangement 4 Cursor fixation hole 4-1-2 in, rotation lock gear 2-2 is matched with cursor locking device 3 and can be locked cursor sheet Body 2-1 is able to rotate it not, and rotation arm gear 2-3 is engaged with the gear in reversing arrangement 4.

The cursor locking device 3 includes pedestal 3-1, clip for limiting 3-2 and clip for limiting spring 3-3；Pedestal 3- Bracing wire hole 3-1-1, limit card slot 3-1-2 and pedestal fixation hole 3-1-3 are provided on 1；Clip for limiting 3-2 is equipped with limit claw 3-2-1 and bracing wire mounting hole 3-2-2；The drawing on pedestal 3-1 is passed through with the bracing wire one end being connected cursor locking holding rod 1-2 String holes 3-1-1 is mounted in the bracing wire mounting hole 3-2-2 on clip for limiting 3-2, and clip for limiting spring 3-3 is through in bracing wire, limit Position clamp 3-2 and clip for limiting spring 3-3 is installed in limit card slot 3-1-2, and cursor locking device 3 passes through pedestal 3-1 The pedestal fixation hole 3-1-3 of bottom is fixed in the pedestal fixation hole 4-1-5 on the fixed baffle 4-1-1 on reversing arrangement 4, Bracing wire is also cross the bracing wire hole 4-1-6 on fixed baffle 4-1-1；

When holding lower cursor locking holding rod 1-2, make clip for limiting 3-2 to inside limit card slot 3-1-2 by bracing wire Mobile, limit claw 3-2-1 is extracted out out of rotation lock gear 2-2 teeth, and clip for limiting spring 3-3 is compressed, cursor sheet Body 2-1 can be rotated；When unclamping cursor locking holding rod 1-2, under the action of clip for limiting spring 3-3, clip for limiting 3-2 It is moved to outside limit card slot 3-1-2, in limit claw 3-2-2 insertion lock gear 2-2 teeth, so that rotation arm body 2-1 quilt Locked, under the action of clip for limiting spring 3-3 stretches strength, cursor locking holding rod 1-2 is lifted automatically.

The reversing arrangement 4 includes reversing arrangement bracket 4-1, tumbler gear group 4-2, commutation lever device 4-3 and changes To lever top cover 4-4；Reversing arrangement bracket 4-1 includes reversing arrangement mounting rod 4-1-4, four pieces of reversing arrangement mounting plates and two pieces Fixed baffle 4-1-1；The vertical bar of reversing arrangement bracket 4-1 is mounted on vehicle frame, and both ends are equal on the cross bar of reversing arrangement bracket 4-1 Fixed baffle 4-1-1 is installed, promising cursor fixation hole 4-1-2, pedestal fixation hole 4-1-5 are opened up on fixed baffle 4-1-1 With bracing wire hole 4-1-6, four pieces of reversing arrangement mounting plates are mounted on middle part, are provided with and turn on two pieces of reversing arrangement mounting plates in outside Two pieces of reversing arrangement mounting plates of swing arm fixation hole 4-1-2, inside are equipped with big chain plate fixation hole 4-1-3；Rotate arm body 2-1 Two cursor bearing 2-4 be mounted in two cursor fixation hole 4-1-2 on reversing arrangement bracket 4-1；Tumbler gear Tumbler gear group installation bearing 4-2-5 is installed, tumbler gear group installs bearing in the cursor mounting hole 4-2-1-1 of group 4-2 4-2-5, which is sleeved on, to be used to install tumbler gear group 4-2 on rotation arm body 2-1；Commutation lever top cover 4-4 is mounted on reversing arrangement The top of tumbler gear group 4-2 among four pieces of middle part reversing arrangement mounting plate on bracket 4-1；Commutate lever device 4-3 installation On tumbler gear group 4-2.

The tumbler gear group 4-2 includes tumbler gear fixed plate 4-2-1, up time pin gear 4-2-2, inverse time pin gear 4-2-3, transition gear 4-2-4 and tumbler gear group install bearing 4-2-5；Rotation is provided on tumbler gear fixed plate 4-2-1 Arm mounting hole 4-2-1-1, up time pin gear fixation hole 4-2-1-2, inverse time pin gear fixation hole 4-2-1-3, transition gear are fixed Hole 4-2-1-4, commutation bar fixed bracket 4-2-1-5 and commutation bar fixed shaft hole 4-2-1-6；Up time pin gear 4-2-2, Inverse time pin gear 4-2-3, transition gear 4-2-4 structure are identical, are divided into gear and rolling bearing two parts, rotation axis bearing sleeve On the axis of gear side protrusion, up time pin gear 4-2-2, inverse time pin gear 4-2-3 and transition gear 4-2-4 are equal It is mounted on gear mounting plate 4-2-1 in corresponding hole by rolling bearing, tumbler gear group installation bearing 4-2-5, which is mounted on, to be turned In swing arm mounting hole 4-2-1-1, tumbler gear group installation bearing 4-2-5 is sleeved on rotation arm body 2-1, rotates arm body 2- The rotation arm gear 2-3 of 1 end is meshed with inverse time pin gear 4-2-3 and excessive gear 4-2-4 simultaneously, up time pin gear 4- 2-2 is meshed with transition gear 4-2-4, by pushing commutation lever device 4-3 to drive tumbler gear fixed plate 4-2-1 to commutate Gear set installs bearing 4-2-5 as axis rotation, can make one in gear 4-2-2 clockwise or inverse time pin gear 4-2-3 It is a to be meshed with big chain plate gear 5-3 in front-wheel drive 5.

The commutation lever device 4-3 includes commutation lever ontology 4-3-1, commutation lever axis 4-3-2 and commutation lever Spring 4-3-3；The commutation lever ontology 4-3-1 includes commutation lever fixation hole 4-3-1-1 and commutation lever handle 4-3- 1-2；Commutation lever fixation hole 4-3-1-1 is provided with below commutation lever handle 4-3-1-2, commutation lever axis 4-3-2 is mounted on In commutation bar fixed shaft hole 4-2-1-6 on tumbler gear fixed plate 4-2-1, commutation lever spring 4-3-3 is mounted on commutation On lever axis 4-3-2, commutation lever axis 4-3-2 passes through the fixed commutation lever ontology 4-3-1 of commutation lever fixation hole 4-3-1-1, It pushes commutation lever handle 4-3-1-2 that can drive tumbler gear group 4-2 that bearing 4-2-5 is installed using tumbler gear group to turn as axle center It moves, so that one in up time pin gear 4-2-2 or inverse time pin gear 4-2-3 and big chain plate in front-wheel drive 5 Gear 5-3 is meshed；

Commutation lever top cover 4-4 is mounted on above tumbler gear group 4-2, is provided with commutation shelves on the lever top cover 4-4 that commutates Bar track 4-4-1 and commutation lever fixing groove 4-4-2；The lever ontology 4-3-1 that commutates passes through the commutation shelves of commutation lever top cover 4-4 Bar track 4-4-1；When bicycle is run, commutation lever ontology 4-3-1 is fixed on by the elasticity of commutation lever spring 4-3-3 to be changed To the bottom lever fixing groove 4-4-2, when needing to commutate, commutation lever handle 4-3-1-2 is firmly pulled, by the lever ontology that commutates 4-3-1 is shifted onto commutation lever track 4-4-1 from commutation lever fixing groove 4-4-2, pushes commutation lever ontology 4-3-1 to another In one commutation lever fixing groove 4-4-2, after loosing one's grip, the elasticity of commutation lever spring 4-3-3 will commutation lever ontology 4-3-1 It is fixed on another commutation bottom lever fixing groove 4-4-2.The process of commutation lever ontology 4-3-1 is pushed to drive commutating tooth Wheel group 4-2 is using tumbler gear group installation bearing 4-2-5 as axis rotation, to change and big chain plate tooth in front-wheel drive 5 The up time pin gear 4-2-2 or inverse time pin gear 4-2-3 that wheel 5-3 is meshed.

The front-wheel drive 5 include big chain plate 5-1, big chain plate bearing 5-2, big chain plate gear 5-3, chain 5-4, Front-wheel fixing axle 5-5, small chain drum 5-6, small chain drum fixing bearing 5-7 and front fork install bearing 5-8；Two big chain plate bearing 5-2 It is sleeved on the axis of the two sides big chain plate 5-1, big chain plate bearing 5-2 is mounted on two reversing arrangements of the inside on reversing arrangement 4 In the big chain plate fixation hole 4-1-3 of mounting plate, the two sides big chain plate 5-1 the tip of the axis is equipped with big chain plate gear 5-3, big chain plate tooth Wheel 5-3 inner ring has ratchet bearing, similar to the flywheel of ordinary bicycle rear-wheel chain drum, so that rotation arm body 2-1 can only drive Big chain plate 5-1 is rotated forward.It rotates forward and refers to that big chain plate 5-1 rotation can drive front-wheel to rotate forward.Front-wheel fixing axle 5-5 It is mounted in the fixation hole in front-wheel axle center, there is small chain drum fixation hole 5-6-1, small chain drum fixing bearing 5-7 peace on small chain drum 5-6 In small chain drum fixation hole 5-6-1, small chain drum fixing bearing 5-7 is sleeved on front-wheel fixing axle 5-5, for installing chainlet Disk 5-6, small chain drum 5-6 and big chain plate 5-1 are linked by chain 5-4；Small chain drum fixing bearing 5-7 is also ratchet class bearing, is made Obtaining when front-wheel is fallen back cannot drive small chain drum 5-6 to rotate；Two front fork installation outer rings bearing 5-8 are fluted, and front fork installs bearing 5-8 is sleeved on the two sides of front-wheel on front-wheel fixing axle 5-5, and bicycle front fork is mounted on the groove of the front fork installation outer ring bearing 5-8 It is interior.

The bicycle further includes barbed chair 6, and barbed chair 6 includes seat fixed station 6-1, seat body 6-2, adjusts Save handle 6-3 and regulation handle spring 6-4；Seat fixed link 6-1-1, seat fixed link 6- are equipped with below seat fixed station 6-1 1-1 is inserted on vehicle frame, and seat fixed station 6-1 is equipped with seat rail slot 6-1-2 and seat tooth plate 6-1-3；Seat body 6-2 On there is seat attachment rail 6-2-1, seat body 6-2 to be mounted on seat rail slot 6-1-2 by seat attachment rail 6-2-1 It is interior, regulation handle mounting hole 6-2-2 is provided on seat body 6-2, regulation handle 6-3 is mounted on regulation handle mounting hole 6- In 2-2, regulation handle spring 6-4 is sleeved on regulation handle 6-3, has male means 6-3-1 on regulation handle 6-3, voluntarily When garage's vehicle, male means 6-3-1 is stuck in seat tooth plate 6-1-3, and seat body 6-2 cannot slide back and forth；It pulls and adjusts handle Hand 6-3 can separate male means 6-3-1 out of seat tooth plate 6-1-3, and regulation handle spring 6-4 is compressed, seat body The seat attachment rail 6-2-1 of 6-2 can slide back and forth in seat track groove 6-1-2；After unclamping regulation handle 6-3, adjusting Under the action of saving handle spring 6-4 stretching, extension strength, regulation handle 6-3 is returned to initial position, and male means 6-3-1 is stuck in seat In tooth plate 6-1-3, seat body 6-2 is locked again；Backrest 6-2-3 is additionally provided on seat body 6-2.

It should be noted that bicycle body is that the utility model does not make vehicle frame, rear-wheel, the rear wheel drive dress changed substantially Set equal components.

Specifically, a kind of handle Double-directional rotary drives the safety-type front-and-back drive bicycle of front-wheel, including handle device 1, turn Pantograph 2, cursor locking device 3, reversing arrangement 4, front-wheel drive 5, barbed chair 6 and the utility model do not do and change The components such as vehicle frame, rear-wheel, the back wheel driving gear of change.Handle device 1 passes through the handle fixation hole 1-1-1 on handle body 1-1 It is sleeved on one end of the rotation arm body 2-1 of rotation arm assembly 2；It rotates arm assembly 2 and passes through rotation arm body 2-1 other end inserting In two cursor fixation hole 4-1-2 of reversing arrangement 4；Cursor locking device 3 is fixed by the pedestal of the bottom pedestal 3-1 Hole 3-1-3 is fixed on the fixed baffle 4-1-1 on reversing arrangement 4；Cursor locking device 3 passes through steel wire and handle device 1 Cursor locking holding rod 1-2 be connected；Reversing arrangement 4 passes through the reversing arrangement mounting rod 4-1-4 peace on reversing arrangement bracket 4-1 On vehicle frame, referring to Fig. 1, the rotation arm gear 2-3 of gear set and rotation arm assembly 2 in reversing arrangement 4 is meshed, together When and front-wheel drive 5 in big chain plate gear 5-3 be meshed；Big chain plate 5-1, the big chain plate gear of front-wheel drive 5 5-3 is installed in reversing arrangement 4.Small chain drum 5-6, the front-wheel of front-wheel drive are sleeved on front-wheel fixing axle 5-5, Big chain plate 5-1 is connected with small chain drum 5-6 by chain；Barbed chair 6 is mounted on vehicle frame.

The handle 1 mainly includes handle body 1-1, cursor locking holding rod 1-2, brake holding rod 1-3, cursor lock Determine holding rod insurance 1-4, handle outboard bearing 1-5 and the several parts handle inboard bearing 1-6.Handle on handle body 1-1 is solid Determine that handle outboard bearing 1-5 and handle inboard bearing 1-6, handle outboard bearing 1-5 and handle inner shafts are installed in the 1-1-1 of hole It holds 1-6 and is sleeved on rotation one end arm body 2-1；There is handle inboard bearing teeth 1-6- on the outside of the inner ring of handle inboard bearing 1-6 1；It is provided with locking holding rod fixed station 1-1-2 on handle body 1-1, locks and is provided with bracing wire hole 1- on holding rod fixed station 1-1-2 1-2-1, holding rod mounting hole 1-1-2-2, holding rod fixation hole 1-1-2-3；Cursor locking holding rod 1-2 is mounted on holding rod mounting hole 1- In 1-2-2, bolt passes through holding rod fixation hole 1-1-2-3 and passes through the holding rod fixation hole 1-2-4 on cursor locking holding rod 1-2, Cursor locking holding rod 1-2 is mounted in cursor locking holding rod mounting hole 1-1-2-2；Have on cursor locking holding rod 1-2 Lock holding rod ontology 1-2-1, handlebar locked pawl 1-2-2, bracing wire fixation hole 1-2-3 and holding rod fixation hole 1-2-4.Handlebar locked pawl There are a teeth in the end 1-2-2.When under hand-held pole ontology 1-2-1 not held, the teeth of the end handlebar locked pawl 1-2-2 can be inserted into In handle inboard bearing teeth 1-6-1, prevent handle body 1-1 is from autobiography；When holding lower cursor locking holding rod 1-2-1, The teeth of the end handlebar locked pawl 1-2-2 can be separated out of handle inboard bearing teeth 1-6-1, and the handle body side 1-1 can Autobiography.

It is connected with bracing wire on bracing wire fixation hole 1-2-3 on cursor locking holding rod 1-2, the bracing wire other side connects cursor Locking device 3.When holding lower locking holding rod ontology 1-2-1, bracing wire can pull the clip for limiting 3-2 of cursor locking device 3 from Latched position is left, so that rotation arm body 2-1 can also be rotated, while the clip for limiting spring in cursor locking device 3 3-3 is compressed.When unclamping locking holding rod ontology 1-2-1, under the action of clip for limiting spring 3-3 stretches strength, clip for limiting 3-2 responds immediately to latched position, while locking holding rod ontology 1-2-1 and being pulled up immediately, the tooth of the end handlebar locked pawl 1-2-2 Tooth is inserted into handle inboard bearing teeth 1-6-1, and rotation arm body 2-1 and handle body 1-1 is locked simultaneously, Bu Nengzhuan It is dynamic.

It is provided with insurance mounting groove 1-1-4 on handle body 1-1, insures and cursor locking is installed in mounting groove 1-1-4 Holding rod insures 1-4.Cursor lock holding rod insurance 1-4 by bumper bar 1-4-1, relief spring 1-4-2, safety handle 1-4-3 and Lock nut 1-4-4 composition.Relief spring 1-4-2 is through on bumper bar 1-4-1, and safety handle 1-4-3 is mounted on bumper bar one End, it is fixed by nut or other methods and bumper bar 1-4-1.The bumper bar 1-4-1 other end is wedge-shaped protrusion shape.When It is latched position when the boss is in below cursor locking holding rod 1-4, blocking cursor locking holding rod 1-2 cannot be held Under, it prevents from accidentally touching；Safety handle 1-4-3 is slightly enforced, bumper bar 1-4-1 is moved in insurance mounting groove 1-1-4, insured Spring 1-4-2 is compressed, and the boss of bumper bar 1-4-1 can leave latched position, and the cursor locking holding rod side 1-2 can be held Under；Safety handle 1-4-3 and cursor locking holding rod 1-2 are unclamped when lifting, in the effect of relief spring 1-4-2 stretching, extension strength Under, bumper bar 1-4-1 automatically reverts to latched position.Brake holding rod fixed station 1-1-3, peace are additionally provided on handle body 1-1 Equipped with brake holding rod 1-3.The mounting means of brake holding rod 1-3 is identical as ordinary bicycle, can also be arranged on handle body 1-1 The devices such as small bell, governor, identical as ordinary bicycle, details are not described herein.

The cursor locks holding rod 1-2 only when under holding always, handle body 1-1 and the rotation arm body side 2-1 It can be rotated, when unclamping cursor locking holding rod 1-2, handle body 1-1 and rotation arm body 2-1 are locked simultaneously.Handlebar locked Holding rod 1-2 is mounted below brake holding rod 1-3 and is additionally provided with brake lever limit on the position of finger tip, handle body 1-2 Block 1-1-5 guarantees accidentally touch cursor lock when brake holding rod 1-3 holds extreme lower position positioned at the lower section of brake holding rod 1-3 Determine holding rod 1-2, it is ensured that handle body 1-1 and rotation arm body 2-1 will not unintentional rotations when brake.

The rotation arm assembly 2 mainly includes rotation arm body 2-1, rotation lock gear 2-2, rotation arm gear 2-3 With the several parts cursor bearing 2-4.Rotation arm body 2-1 is " Z " word shape, and one end is equipped with handle device 1, other end peace Equipped with rotation lock gear 2-2, two cursor bearing 2-4 and rotation arm gear 2-3.Two cursor bearing 2-4 are mounted on In the cursor fixation hole 4-1-2 of reversing arrangement 4.Rotation lock gear 2-2 is matched with cursor locking device 3 and can be locked Surely rotation arm body 2-1 is able to rotate it not.Rotation arm gear 2-3 is engaged with the gear in reversing arrangement 4.

The cursor locking device 3 includes pedestal 3-1, clip for limiting 3-2 and clip for limiting spring 3-3 three parts. There is limit claw 3-2-1 and bracing wire mounting hole 3-2-2 on clip for limiting 3-2.The bracing wire being connected with cursor locking holding rod 1-2 The bracing wire hole 3-1-1 that one end passes through on pedestal 3-1 is mounted in bracing wire mounting hole 3-2-2.Clip for limiting spring 3-3 is through bracing wire On.Clip for limiting 3-2 and clip for limiting spring 3-3 are installed in limit card slot 3-1-2, and bracing wire passes through the drawing on pedestal 3-1 String holes 3-1-1 is pierced by.Cursor locking device 3 is fixed on reversing arrangement 4 by the pedestal fixation hole 3-1-3 of the bottom pedestal 3-1 On fixed baffle 4-1-1 on pedestal fixation hole 4-1-5 in, bracing wire is also cross the bracing wire hole 4- on fixed baffle 4-1-1 1-6.When holding lower cursor locking holding rod 1-2, make clip for limiting 3-2 to moving inside limit card slot 3-1-2 by bracing wire Dynamic, limit claw 3-2-1 is extracted out out of rotation lock gear 2-2 teeth, and clip for limiting spring 3-3 is compressed, and rotates arm body 2-1 can be rotated；Unclamp cursor locking holding rod 1-2 when, under the action of clip for limiting spring 3-3, clip for limiting 3-2 to It is mobile outside limit card slot 3-1-2, in limit claw 3-2-2 insertion lock gear 2-2 teeth, so that rotation arm body 2-1 is locked Extremely.Under the action of clip for limiting spring 3-3 stretches strength, cursor locking holding rod 1-2 is lifted automatically.

The reversing arrangement 4 mainly include reversing arrangement bracket 4-1, tumbler gear group 4-2, commutation lever device 4-3, The commutation several parts lever top cover 4-4.Reversing arrangement 4 passes through the reversing arrangement mounting rod 4-1-4 on reversing arrangement bracket 4-1 It is mounted on vehicle frame, referring to Fig. 1；There are four pieces of reversing arrangement mounting plates and two pieces of fixed baffle 4-1- on reversing arrangement bracket 4-1 1, for the component of fixed rotation arm body 2-1, big chain plate 5-1.Rotate two cursor bearing 2-4 installation of arm body 2-1 In two cursor fixation hole 4-1-2 on reversing arrangement bracket 4-1.The cursor mounting hole 4-2- of tumbler gear group 4-2 Tumbler gear group installation bearing 4-2-5 is installed, tumbler gear group installation bearing 4-2-5 is sleeved on rotation arm body 2- in 1-1 It is used to that tumbler gear group 4-2 is installed on 1；It is tumbler gear group 4-2 below commutation lever top cover 4-4, commutate lever ontology 4-3- 1 passes through the commutation lever track 4-4-1 on commutation lever top cover 4-4, the commutation lever handle 4-3-1- for the lever device 4-3 that commutates 2 above commutation lever top cover 4-4.Commutation lever device 4-3 is mounted on the tumbler gear fixed plate 4-2- of tumbler gear group 4-2 On 1.

The tumbler gear group 4-2 includes tumbler gear fixed plate 4-2-1, up time pin gear 4-2-2, inverse time pin gear 4-2-3, transition gear 4-2-4, tumbler gear group install the several parts bearing 4-2-5.It is arranged on tumbler gear fixed plate 4-2-1 There are cursor mounting hole 4-2-1-1, up time pin gear fixation hole 4-2-1-2, inverse time pin gear fixation hole 4-2-1-3, transition tooth Take turns fixation hole 4-2-1-4, the fixed bracket 4-2-1-5 of commutation bar, commutation bar fixed shaft hole 4-2-1-6.Up time pin gear 4- 2-2, inverse time pin gear 4-2-3, transition gear 4-2-4 structure are identical, are divided into gear and rolling bearing two parts, rotation axis Bearing sleeve is on the axis of gear side protrusion.Up time pin gear 4-2-2, inverse time pin gear 4-2-3, transition gear 4-2-4 It is mounted on gear mounting plate 4-2-1 in corresponding hole by rolling bearing, tumbler gear group installation bearing 4-2-5 is mounted on In cursor mounting hole 4-2-1-1, tumbler gear group installation bearing 4-2-5 is sleeved on rotation arm body 2-1.Cursor sheet The rotation arm gear 2-3 of the end body 2-1 is meshed with up time pin gear 4-2-2 and transition gear 4-2-4 simultaneously, inverse time pin gear 4-2-3 is meshed with transition gear 4-2-4.By pushing tumbler gear fixed plate 4-2-1, gear 4- clockwise can be made 2-2 or inverse time pin gear 4-2-3 is meshed with big chain plate gear 5-3 in front-wheel drive 5, so that rotation arm body be arranged 2-1 and big chain plate 5-1 rotation direction are in the same direction or reverse.

The commutation lever device 4-3 includes commutation lever ontology 4-3-1, commutation lever fixation hole 4-3-1-1, changes To lever handle 4-3-1-2, commutation lever axis 4-3-2, the commutation several parts lever spring 4-3-3.Commutate lever axis 4-3-2 peace In commutation bar fixed shaft hole 4-2-1-6 on tumbler gear fixed plate 4-2-1, commutation lever spring 4-3-3 is mounted on It commutates on lever axis 4-3-2.There is commutation lever fixation hole 4-3-1-1 on commutation lever ontology 4-3-1, commutate lever fixation hole 4-3-1-1 is sleeved on commutation lever axis 4-3-2.Commutation lever handle 4-3-1-2 is provided on commutation lever ontology 4-3-1. Commutation lever handle 4-3-1-2 can drive tumbler gear group 4-2 to rotate arm body 2-1 as axis rotation, so that suitable Hour hand gear 4-2-2 or inverse time pin gear 4-2-3 is meshed with big chain plate gear 5-3 in front-wheel drive 5 respectively.Commutation Lever top cover 4-4 is mounted on above tumbler gear group 4-2, two pieces of fixed baffle 4-1-1 being fixed on reversing arrangement bracket 4-1 It is intermediate.Commutation lever track 4-4-1 and commutation lever fixing groove 4-4-2 are provided on commutation lever top cover 4-4.Commutate lever sheet Body 4-3-1 passes through the commutation lever track 4-4-1 of commutation lever top cover 4-4.When bicycle is run, commutate lever spring 4-3-3 Elasticity will commutation lever ontology 4-3-1 be fixed on the bottom lever fixing groove 4-4-2.When needing to commutate, commutation is firmly pulled Lever handle 4-3-1-2 shifts commutation lever ontology 4-3-1 in commutation lever track 4-4-1 from lever fixing groove 4-4-2 onto, It pushes in commutation lever ontology 4-3-1 to another lever fixing groove 4-4-2, after loosing one's grip, the elasticity for the lever spring 4-3-3 that commutates Commutation lever ontology 4-3-1 is fixed on the bottom another lever fixing groove 4-4-2.

The reversing arrangement 4 acts on the relationship for being to change rotation arm body 2-1 and big chain plate 5-1 rotation direction, i.e., It is in the same direction or reversed, while commutation lever position can be locked, it prevents from accidentally touching abjection.It, can be according to gear when specific design bicycle The demands such as strength ratio are converted, different designs is carried out to the structure of 4 internal gear group of reversing arrangement, clutch dress can also be increased It sets or speed change gear is not being repeated herein with meeting function described above.

The front-wheel drive 5 include big chain plate 5-1, big chain plate bearing 5-2, big chain plate gear 5-3, chain 5-4, Front-wheel fixing axle 5-5, small chain drum 5-6, small chain drum fixing bearing 5-7, front fork install the several parts bearing 5-8.Two big chain plates Bearing 5-2 is sleeved on the axis of the two sides big chain plate 5-1, is mounted in the big chain plate fixation hole 4-1-3 on reversing arrangement 4.Big chain The two sides disk 5-1 the tip of the axis is equipped with big chain plate gear 5-3.Big chain plate gear 5-3 inner ring has ratchet bearing, is similar to commonly certainly The flywheel of driving rear-wheel chain drum, so that rotation arm body 2-1 can only drive big chain plate 5-1 to rotate forward.It rotates forward and refers to greatly Chain drum 5-1 rotation can drive front-wheel to rotate forward.Front-wheel fixing axle 5-5 is mounted in the fixation hole in front-wheel axle center.Small chain drum There are small chain drum fixation hole 5-6-1, small chain drum fixing bearing 5-7 to be mounted in small chain drum fixation hole 5-6-1 on 5-6, small chain drum is solid Dead axle holds 5-7 and is sleeved on front-wheel fixing axle 5-5.Small chain drum fixing bearing 5-7 is also ratchet class bearing, when so that front-wheel being fallen back Small chain drum 5-6 cannot be driven to rotate.Two front fork installation outer rings bearing 5-8 are fluted, are sleeved on front-wheel on front-wheel fixing axle 5-5 Two sides.Bicycle front fork is mounted in the groove of the front fork installation outer ring bearing 5-8.

The barbed chair 6 includes seat fixed station 6-1, seat body 6-2, regulation handle 6-3, regulation handle spring The several parts 6-4.There is seat fixed link 6-1-1 on seat fixed station 6-1, is inserted on vehicle frame, referring to Fig. 1.Seat in order to prevent Chair rotation, the part of seat fixed link 6-1-1 insertion are rectangular.There are seat rail slot 6-1-2 and seat on seat fixed station 6-1 Tooth plate 6-1-3.There are seat attachment rail 6-2-1, seat body 6-2 to pacify on seat body 6-2 by seat attachment rail 6-2-1 In seat rail slot 6-1-2.Regulation handle mounting hole 6-2-2, regulation handle 6-3 installation are provided on seat body 6-2 In regulation handle mounting hole 6-2-2.Regulation handle spring 6-4 is sleeved on regulation handle 6-3.Have on regulation handle 6-3 convex Lifting device 6-3-1, when bicycle is driven a vehicle, male means 6-3-1 is stuck in seat tooth plate 6-1-3, and seat body 6-2 cannot front and back Sliding；Pull regulation handle 6-3 that can separate driving protrusion 6-3-1 out of seat tooth plate 6-1-3, the seat of seat body 6-2 Chair attachment rail 6-2-1 can be slided in seat track groove 6-1-2, and seat body 6-2 can be moved forward and backward.It unclamps and adjusts After handle 6-3, under the action of regulation handle spring 6-4 stretches strength, regulation handle 6-3 is returned to initial position, protrusion dress It sets 6-3-1 to be stuck in seat tooth plate 6-1-3, seat body 6-3 is locked again.Backrest 6- is additionally provided on seat body 6-2 2-3, when rider pushes handle body 1-1 acting, backrest provides bracing force for rider.

3 structure of cursor locking device is not limited to mode described herein, can make other Character Designs, can reach Locking rotation arm body 2-1.

5 front-wheel drive 5 of the front-wheel drive is mountable on vehicle frame near front-wheel hub, on front-wheel hub Teeth are set, by the simple adjustment to small chain drum mounting means, wheel hub driving may be implemented, which can effectively shorten chain Length.

The utility model discloses a kind of handle Double-directional rotaries to drive the safety-type front-and-back drive bicycle of front-wheel, including handle Device, rotation arm assembly, cursor locking device, reversing arrangement, front-wheel drive, barbed chair and other are practical new Type does not make the components such as the vehicle frame, rear-wheel, back wheel driving gear changed substantially.The handle device is mounted on rotation arm assembly On, handle body can be to rotate arm body as axle center autobiography.Handle device is pushed, rotation arm body rotation can also be driven, into And the big chain plate of front-wheel drive is driven to rotate, finally drive front-drive.Be equipped in handle body to lock simultaneously Handle body autobiography and the cursor of rotation arm body rotation lock holding rod.Lower cursor locking holding rod, handle body are held always It can be rotated with cursor, after unclamping rotation locked hand, handle body and cursor are locked immediately.Rotate arm assembly installation On reversing arrangement bracket, the strength that handle device rotates is transmitted to front-wheel drive；Transmission arm locking device is mounted on On reversing arrangement, it is connected by bracing wire with handle device.Reversing arrangement is mounted on vehicle frame.Reversing arrangement is equipped with commutation shelves Bar is connect with its internal tumbler gear group.Pulling commutation lever handle can be with change gear group middle gear structure, and then is arranged and pushes away Dynamic handle device, which rotates clockwise the advance of driving front-wheel or rotates counterclockwise handle device driving front-wheel, to advance, and rides for converting The person's of multiplying motion mode；The front-wheel drive is mounted on reversing arrangement, and there is small chain drum in end, and small chain drum is mounted on front-wheel It on axle, is connected by the big chain plate of chain and front-wheel drive, the strength that handle device rotates is transferred to front-wheel；It is described Barbed chair on be provided with backrest, and position can front and back adjust.

Riding personnel open cursor locking holding rod insurance, can hold lower cursor lock always when keeping straight on and being accessible Determine holding rod, drives or use instead front-wheel drive simultaneously using front and back wheel, it is also changeable to wake up lever handle after acting has been tired out clockwise Acting counterclockwise is changed into position, may be set to be both hands while above pushing away or both hands while pushing acting.In riding in this way Upper limb effect can be played, has broken the unicity of driving method, and rider's whole body is taken exercise.Such as dangerous, Turn round or rider want terminate front-wheel drive when, only need to slightly unclamp cursor locking holding rod can lock immediately handle and turn Swing arm is not able to rotate, ensure that the safety of riding.The bicycle operation of the utility model is simple, pattern connects with current bicycle Closely, driving device only is increased to the front-wheel of existing bicycle, therefore rationally, safety, and it is at low cost.

Handle Double-directional rotary provided by the utility model drives the safety-type front-and-back drive bicycle of front-wheel, is rotated by setting Arm, transmission shaft, reversing arrangement, locking device, handle rotating switch and the handle that can rotate to drive front-drive, when strong When body person rides upward slope, front and back wheel can be used while driving, not only played the effect of upper limb in this way, broken driving method Unicity, and body builder's whole body is taken exercise, conducive to the coordinated movement of various economic factors of trick.Meanwhile by setting handle and turning Swing arm locking system ensure that the safety driven.Meanwhile being provided with commutation lever, thus it is possible to vary power output mode.This is practical new Type bicycle operation is simple, pattern close with current bicycle is to increase driving device to the front-wheel of existing bicycle, Therefore rationally, safety, and it is at low cost.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims

1. a kind of handle Double-directional rotary drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that including bicycle body, Reversing arrangement (4), front-wheel drive (5) and symmetrically arranged handle device (1), rotation arm assembly (2) and cursor locking Device (3)；Reversing arrangement (4) both ends pass through cursor locking device (3) and are equipped with rotation arm assembly (2), rotate arm assembly (2) it is equipped on respective handle device (1), cursor locking device (3) passes through the cursor of steel wire and handle device (1) lock Determine holding rod (1-2) to be connected, reversing arrangement (4) passes through reversing arrangement mounting rod (4-1-4) installation on reversing arrangement bracket (4-1) Gear set and rotation arm gear (2-3) phase of rotation arm assembly (2) on the vehicle frame of bicycle body, in reversing arrangement (4) Engagement, reversing arrangement (4) are connected with front-wheel drive (5), and front-wheel drive (5) is mounted on front-wheel fixing axle (5-5) On.

2. handle Double-directional rotary according to claim 1 drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that The handle device (1) includes handle body (1-1), cursor locking holding rod (1-2), brake holding rod (1-3), handle outside Bearing (1-5) and handle inboard bearing (1-6)；Handle fixation hole (1-1-1) is provided in handle body (1-1), handle is fixed Handle outboard bearing (1-5) and handle inboard bearing (1-6), handle outboard bearing (1-5) and handle are installed in hole (1-1-1) Inboard bearing (1-6) is sleeved on one end rotation arm body (2-1) of rotation arm assembly (2), the inner ring of handle inboard bearing (1-6) Outside is equipped with handle inboard bearing teeth (1-6-1), and locking holding rod ontology (1-2- is provided in cursor locking holding rod (1-2) 1), bracing wire fixation hole (1-2-3) and holding rod fixation hole, locking holding rod ontology (1-2-1) lower section are provided with handlebar locked pawl (1-2- 2) it, is provided with locking holding rod fixed station (1-1-2) and brake holding rod fixed station (1-1-3) in handle body (1-1), locks holding rod Bracing wire hole, holding rod mounting hole (1-1-2-2) and holding rod fixation hole are provided on fixed station (1-1-2), cursor locks holding rod (1- 2) locking holding rod ontology (1-2-1) passes through holding rod mounting hole (1-1-2-2) and is mounted in holding rod mounting hole (1-1-2-2), spiral shell Bolt passes through holding rod fixation hole and passes through the holding rod fixation hole in cursor locking holding rod (1-2), and cursor is locked holding rod (1-2) It is mounted in holding rod mounting hole (1-1-2-2)；There are a teeth in the end handlebar locked pawl (1-2-2), hand-held pole ontology (1-2- 1) when under not holding, the teeth of the end handlebar locked pawl (1-2-2) can be inserted in handle inboard bearing teeth (1-6-1), so that Handle body (1-1) is unable to autobiography；When holding lower cursor locking holding rod (1-2), the teeth meeting of the end handlebar locked pawl (1-2-2) Separate out of handle inboard bearing teeth (1-6-1), handle body (1-1) can just rotate arm body (2-1) be axis from It passes, brake holding rod (1-3) is fixed in brake holding rod fixed station (1-1-3).

3. handle Double-directional rotary according to claim 2 drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that Bracing wire is connected on bracing wire fixation hole (1-2-3) in cursor locking holding rod (1-2), the bracing wire other side connects cursor locking Device (3), when holding lower locking holding rod ontology (1-2-1), bracing wire can pull the clip for limiting (3- of cursor locking device (3) 2) it is left from latched position, so that rotation arm body (2-1) can also rotate, while the limit in cursor locking device (3) Clamp spring (3-3) is compressed；When unclamping locking holding rod ontology (1-2-1), in the work of clip for limiting spring (3-3) stretching, extension strength Under, clip for limiting (3-2) responds immediately to latched position, while locking holding rod ontology (1-2-1) and being pulled up immediately, grip handle lock The teeth for determining the end pawl (1-2-2) are inserted into handle inboard bearing teeth (1-6-1), rotate arm body (2-1) and handle sheet Body (1-1) is locked simultaneously, is not able to rotate.

4. handle Double-directional rotary according to claim 2 drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that It is provided with insurance mounting groove (1-1-4) in the handle body (1-1), cursor is installed in insurance mounting groove (1-1-4) Lock holding rod insurance (1-4)；Cursor locking holding rod insurance (1-4) includes bumper bar (1-4-1), relief spring (1-4-2), protects Dangerous handle (1-4-3) and lock nut (1-4-4)；Relief spring (1-4-2) is through on bumper bar (1-4-1), safety handle (1- It 4-3) is mounted on bumper bar one end, bumper bar (1-4-1) fixed by lock nut (1-4-4) and bumper bar (1-4-1) The other end is wedge-shaped protrusion shape, is locking bit when the wedge-shaped protrusion position is in below cursor locking holding rod insurance (1-4) It sets, cannot be held down for blocking cursor locking holding rod (1-2)；When pushing safety handle (1-4-3), bumper bar (1-4-1) Movement, relief spring (1-4-2) are compressed in insurance mounting groove (1-1-4), and the boss of bumper bar (1-4-1) can leave Latched position, cursor locking holding rod (1-2) can be held down；When unclamping cursor locking holding rod (1-2), in relief spring (1- Under the action of 4-2) stretching strength, bumper bar (1-4-1) automatically reverts to latched position immediately, and cursor locks holding rod (1-2) It is locked out and holds down.

5. handle Double-directional rotary according to claim 2 drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that Cursor locking holding rod (1-2) is mounted below brake holding rod (1-3) and the position of close finger tip, in handle body (1-1) also It is provided with brake lever limited block (1-1-5), brake lever limited block (1-1-5) is located at the lower section of brake holding rod (1-3).

6. handle Double-directional rotary according to claim 2 drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that The rotation arm assembly (2) includes rotation arm body (2-1), rotation lock gear (2-2), rotation arm gear (2-3) and two A cursor bearing (2-4)；Rotating arm body (2-1) is " Z " word shape, and one end is equipped with handle device (1), other end installation There are rotation lock gear (2-2), rotation arm gear (2-3) and two cursor bearings (2-4)；Two cursor bearings (2-4) It is mounted in the cursor fixation hole (4-1-2) of reversing arrangement (4), rotation lock gear (2-2) and cursor locking device (3) Rotation arm body (2-1) can be locked by, which matching, is able to rotate it not, the tooth in rotation arm gear (2-3) and reversing arrangement (4) Wheel engagement.

7. handle Double-directional rotary according to claim 6 drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that The cursor locking device (3) includes pedestal (3-1), clip for limiting (3-2) and clip for limiting spring (3-3)；Pedestal (3- 1) bracing wire hole, limit card slot (3-1-2) and pedestal fixation hole are provided on；Clip for limiting (3-2) is equipped with limit claw and drawing Line mounting hole (3-2-2)；The bracing wire one end being connected with cursor locking holding rod (1-2) passes through the bracing wire hole on pedestal (3-1) It is mounted on the bracing wire mounting hole (3-2-2) on clip for limiting (3-2) Nei；Clip for limiting spring (3-3) is through in bracing wire；Limiting card Sub (3-2) and clip for limiting spring (3-3) are installed in limit card slot (3-1-2)；Cursor locking device (3) passes through pedestal The pedestal fixation hole of the bottom (3-1) is fixed in the pedestal fixation hole on the fixed baffle (4-1-1) on reversing arrangement (4), is drawn Line is also cross the bracing wire hole on fixed baffle (4-1-1)；

When holding lower cursor locking holding rod (1-2), make clip for limiting (3-2) into limit card slot (3-1-2) by bracing wire Portion is mobile, and limit claw extraction out of rotation lock gear (2-2) teeth, clip for limiting spring (3-3) is compressed, cursor sheet Body (2-1) can rotate；When unclamping cursor locking holding rod (1-2), under the action of clip for limiting spring (3-3), limit Clamp (3-2) moves outside to limit card slot (3-1-2), in limit claw insertion lock gear (2-2) teeth, so that cursor sheet Body (2-1) is locked, and under the action of clip for limiting spring (3-3) stretches strength, cursor locks holding rod (1-2) auto lifting It rises.

8. handle Double-directional rotary according to claim 7 drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that The reversing arrangement (4) includes reversing arrangement bracket (4-1), tumbler gear group (4-2), commutation lever device (4-3) and changes To lever top cover (4-4)；Reversing arrangement bracket (4-1) includes reversing arrangement mounting rod (4-1-4), four pieces of reversing arrangement mounting plates With two pieces of fixed baffles (4-1-1)；The vertical bar of reversing arrangement bracket (4-1) is mounted on vehicle frame, reversing arrangement bracket (4-1) Both ends are mounted on fixed baffle (4-1-1) on cross bar, offered on fixed baffle (4-1-1) cursor fixation hole (4-1-2), Pedestal fixation hole and bracing wire hole；Four pieces of reversing arrangement mounting plates are mounted on middle part, set on two pieces of reversing arrangement mounting plates in outside It is equipped with cursor fixation hole (4-1-2), two pieces of reversing arrangement mounting plates of inside are equipped with big chain plate fixation hole (4-1-3)；Turn Two cursor bearings (2-4) of swing arm ontology (2-1) are mounted on two cursor fixation holes on reversing arrangement bracket (4-1) In (4-1-2)；Tumbler gear group installation bearing (4- is installed in the cursor mounting hole (4-2-1-1) of tumbler gear group (4-2) 2-5), tumbler gear group installation bearing (4-2-5), which is sleeved on, is used to install tumbler gear group (4-2) in rotation arm body (2-1)； Commutation lever top cover (4-4) is mounted on reversing arrangement bracket (4-1) tumbler gear among the reversing arrangement mounting plate of four pieces of middle part The top of group (4-2)；Commutation lever device (4-3) is mounted on tumbler gear group (4-2).

9. handle Double-directional rotary according to claim 8 drives the safety-type front-and-back drive bicycle of front-wheel, which is characterized in that The tumbler gear group (4-2) includes tumbler gear fixed plate (4-2-1), up time pin gear (4-2-2), inverse time pin gear (4-2-3), transition gear (4-2-4) and tumbler gear group installation bearing (4-2-5)；It is set in tumbler gear fixed plate (4-2-1) It is equipped with cursor mounting hole (4-2-1-1), up time pin gear fixation hole (4-2-1-2), inverse time pin gear fixation hole (4-2-1- 3), transition gear fixation hole (4-2-1-4), commutation bar fixed bracket (4-2-1-5) and commutation bar fixed shaft hole (4-2-1- 6)；Up time pin gear (4-2-2), inverse time pin gear (4-2-3), transition gear (4-2-4) structure are identical, be divided into gear and Rolling bearing two parts, rolling bearing be sleeved on gear side protrusion axis on, up time pin gear (4-2-2), counterclockwise Gear (4-2-3) and transition gear (4-2-4) are mounted on corresponding hole on gear mounting plate (4-2-1) by rolling bearing Interior, tumbler gear group installation bearing (4-2-5) is mounted in cursor mounting hole (4-2-1-1), and tumbler gear group installs bearing (4-2-5) is sleeved in rotation arm body (2-1), rotates the rotation arm gear (2-3) of the end arm body (2-1) while and inverse time Pin gear (4-2-3) and excessive gear (4-2-4) are meshed, and up time pin gear (4-2-2) is mutually nibbled with transition gear (4-2-4) It closes；By pushing commutation lever device (4-3) driving tumbler gear fixed plate (4-2-1) to install bearing (4- with tumbler gear group It 2-5) is rotated for axis, one and front-wheel drive in gear clockwise (4-2-2) or inverse time pin gear (4-2-3) can be made Big chain plate gear (5-3) is meshed in device (5).

10. handle Double-directional rotary according to claim 8 drives the safety-type front-and-back drive bicycle of front-wheel, feature exists In the commutation lever device (4-3) includes commutation lever ontology (4-3-1), commutation lever axis (4-3-2) and commutation lever Spring (4-3-3)；The commutation lever ontology (4-3-1) includes commutation lever fixation hole (4-3-1-1) and commutation lever hand Handle (4-3-1-2)；Commutation lever fixation hole (4-3-1-1) is provided with below commutation lever handle (4-3-1-2), commutate lever axis (4-3-2) is mounted on the commutation bar fixed shaft hole (4-2-1-6) on tumbler gear fixed plate (4-2-1) Nei, and commutate lever bullet Spring (4-3-3) is mounted in commutation lever axis (4-3-2), and commutation lever axis (4-3-2) passes through commutation lever fixation hole (4-3-1- 1) fixed commutation lever ontology (4-3-1), push commutation lever handle (4-3-1-2) can drive tumbler gear group (4-2) with It is axis rotation that tumbler gear group, which installs bearing (4-2-5), so that up time pin gear (4-2-2) or inverse time pin gear One in (4-2-3) is meshed with big chain plate gear (5-3) in front-wheel drive (5)；

Commutation lever top cover (4-4) is mounted on above tumbler gear group (4-2), is provided with commutation in commutation lever top cover (4-4) Lever track (4-4-1) and commutation lever fixing groove (4-4-2)；Lever ontology (4-3-1) is commutated across commutation lever top cover (4- 4) commutation lever track (4-4-1)；When bicycle is run, the elasticity of commutation lever spring (4-3-3) will commutation lever ontology (4-3-1) is fixed on commutation bottom lever fixing groove (4-4-2), when needing to commutate, firmly to pull commutation lever handle (4-3- 1-2), commutation lever ontology (4-3-1) is shifted onto commutation lever track (4-4-1) from commutation lever fixing groove (4-4-2), is pushed away Move into lever ontology (4-3-1) to another commutation lever fixing groove (4-4-2), after loosing one's grip, commutate lever spring (4-3- 3) commutation lever ontology (4-3-1) is fixed on another commutation bottom lever fixing groove (4-4-2) by elasticity.

11. handle Double-directional rotary according to claim 1 drives the safety-type front-and-back drive bicycle of front-wheel, feature exists In the front-wheel drive (5) includes big chain plate (5-1), big chain plate bearing (5-2), big chain plate gear (5-3), chain (5-4), front-wheel fixing axle (5-5), small chain drum (5-6), small chain drum fixing bearing (5-7) and front fork installation bearing (5-8)；Two Big chain plate bearing (5-2) is sleeved on the axis of the two sides big chain plate (5-1), and big chain plate bearing (5-2) is mounted on reversing arrangement (4) Inside two reversing arrangement mounting plates big chain plate fixation hole (4-1-3) in；The installation of big chain plate (5-1) two sides the tip of the axis Have big chain plate gear (5-3), big chain plate gear (5-3) inner ring has ratchet bearing；Front-wheel fixing axle (5-5) is mounted on front-wheel axle center Fixation hole in；There is small chain drum fixation hole (5-6-1) on small chain drum (5-6), small chain drum fixing bearing (5-7) is mounted on small chain drum In fixation hole (5-6-1), small chain drum fixing bearing (5-7) is sleeved on front-wheel fixing axle (5-5), small chain drum fixing bearing (5- It 7) is also ratchet class bearing, prevent from driving small chain drum (5-6) to rotate when front-wheel is fallen back；For installing small chain drum (5-6)；It is small Chain drum (5-6) and big chain plate (5-1) are linked by chain (5-4)；Two front fork installation outer rings bearing (5-8) are fluted, front fork Installation bearing (5-8) is sleeved on the two sides of front-wheel on front-wheel fixing axle (5-5), and bicycle front fork is mounted on front fork installation bearing In the groove of the outer ring (5-8).

12. handle Double-directional rotary according to claim 1 drives the safety-type front-and-back drive bicycle of front-wheel, feature exists In the bicycle further includes barbed chair (6), and barbed chair (6) includes seat fixed station (6-1), seat body (6- 2), regulation handle (6-3) and regulation handle spring (6-4)；It is equipped with seat fixed link (6-1-1) below seat fixed station (6-1), Seat fixed link (6-1-1) is inserted on vehicle frame, and seat fixed station (6-1) is equipped with seat rail slot (6-1-2) and seat tooth Plate (6-1-3)；Have in seat body (6-2) seat attachment rail (6-2-1), seat body (6-2) passes through seat attachment rail (6-2-1) is mounted in seat rail slot (6-1-2), and regulation handle mounting hole (6-2-2) is provided in seat body (6-2), Regulation handle (6-3) is mounted in regulation handle mounting hole (6-2-2), and regulation handle spring (6-4) is sleeved on regulation handle (6- 3) on, there is male means (6-3-1) in regulation handle (6-3)；When bicycle is driven a vehicle, male means (6-3-1) are stuck in seat tooth In plate (6-1-3), seat body (6-2) cannot be slid back and forth；Pull regulation handle (6-3) can be by male means (6-3-1) Separation, regulation handle spring (6-4) are compressed in from seat tooth plate (6-1-3), the seat attachment rail of seat body (6-2) (6-2-1) can slide back and forth in seat track groove (6-1-2)；After unclamping regulation handle (6-3), in regulation handle spring Under the action of (6-4) stretches strength, regulation handle (6-3) is returned to initial position, and male means (6-3-1) are stuck in seat tooth plate In (6-1-3), seat body (6-2) is locked again；Backrest (6-2-3) is additionally provided in seat body (6-2).