CN111661223A - Assembling method for forward resultant force riding vehicle - Google Patents

Abstract

The invention relates to the field of bicycles, in particular to a method for assembling a riding vehicle by positive resultant force, which comprises a steering transmission chain, a front fork wheel set, a rear fork wheel set and a vehicle body plate, wherein a driving module comprises a hand push pull rod, a crankshaft assembly, a seat force pressure rod, a seat force rod piece and a hand force rod piece; the steering transmission chain consists of a steering control component and a steering execution component, wherein the steering control component comprises a spherical upper bearing, a direction cross bar, a steering middle pipe and a steering pipe sleeve; the steering execution component comprises a steering pipe column, a cross shaft joint, a convex cone expansion column and a spline expansion pipe, and the steering pipe sleeve is in axial sliding fit with the steering pipe column; paired guide rails are fixed on the vehicle body plate, a middle line guide wheel is arranged on the upper half section of the manual lever piece, and the middle line guide wheel and the paired guide rails roll back and forth; the parts are grouped and pre-assembled, the steering parts are assembled with each other, the driving parts are assembled with each other, the conventional parts are assembled with each other, and the rings are buckled with each other.

Description

Assembling method for forward resultant force riding vehicle

Technical Field

The invention relates to the field of bicycles, in particular to a method for assembling a forward resultant riding bicycle, which is classified as B62M in the international patent.

Background

Bicycles are available for more than 200 years, and people can still enjoy the inherent advantages of the bicycles all over the world: the low-carbon environment-friendly vehicle can assist people in efficient transportation without consuming body electricity or burning gasoline. The drawback of traditional bicycle is: the rider can not successfully assist the force of one arm of both legs by both hands until now, and particularly for middle-aged and elderly people, the knee bones are easily damaged by only using both legs to apply force to do work.

The patent number of an invention granted by China is as follows: 2017102412103 "method for assembling a bicycle capable of single-leg riding by using steering universal joints and hand and foot resultant force", which is a combination of hands and feet, the following technical problems still exist:

firstly, a 'seat transverse swing rod' is supported by a 'seat shaft pin' and cannot be extended to increase the distance between the 'seat transverse swing rod' and the 'seat shaft pin', so that the swinging angle of the 'seat transverse swing rod' is too large, and the insecurity of forward leaning and backward leaning is caused;

secondly, the power-assisted connecting rod serves as a key component for transmitting pushing and pulling driving force of hands to a chain wheel and a key component for transmitting sitting posture driving force to the chain wheel, namely a pull rod swing fork, wherein the power-assisted connecting rod and the pull rod swing fork are exposed on two sides, so that two legs can be ridden after being separated by a large distance, and the power-assisted connecting rod and the pull rod swing fork are staggered, arranged side by side, rotatably fixed on pedal shaft pins on two sides, and the distance between pedal plates on two sides is widened, so that unsafety in turning is brought;

moreover, the push-pull driving force of both hands is transmitted to a key component 'power-assisted sliding sleeve' of a 'paired chain wheel' from a 'direction handle' so as to rapidly slide under the condition of great conformity, the push-pull force of a rider holding the 'direction handle' by both hands can only act on the 'power-assisted sliding sleeve' by means of the 'power-assisted handle' and is transmitted to a 'power-assisted swing rod' by the 'power-assisted sliding sleeve', therefore, the resultant force borne by the 'power-assisted sliding sleeve' is almost vertical to the sliding route, so that the 'power-assisted sliding sleeve' is worn and scrapped very fast and.

The technical task of the invention is to solve the technical problems in the background technology by adopting an integral frame combined with a pressure lever and a steering mechanism without bending moment resistance aiming at the defects of the prior art, and the specific technical scheme is as follows:

the assembly method of the forward resultant force riding vehicle comprises a steering transmission chain, a front fork wheel set, a rear fork wheel set, a vehicle body plate and a driving module, wherein the driving module comprises a hand push pull rod, a crankshaft assembly, a seat force pressure rod, a seat force rod piece and a hand force rod piece; the steering transmission chain consists of a steering control component and a steering execution component, wherein the steering control component comprises a spherical upper bearing, a direction cross bar, a steering middle pipe and a steering pipe sleeve; the steering execution component comprises a steering pipe column, a cross shaft joint head, a convex cone expansion column and a spline expansion pipe, and the steering pipe sleeve is in axial sliding fit with the steering pipe column; the car body plate is fixed with paired guide rails, the upper half section of the manual lever piece is provided with a center line guide wheel, and the center line guide wheel and the paired guide rails roll back and forth as an improvement:

firstly, pre-packaging each component group:

in a vehicle body plate, outer rings of two split bearings are pressed into two ends of an inner hole of a front fork hole seat in advance;

in the steering transmission chain, a steering control component and a steering execution component are respectively packaged in advance;

in the manual lever piece, an outer stud of the upper bearing is matched with the screw hole seat of the upper bearing; the inner hole of the center line guide wheel is sleeved on the excircle of the guide wheel mandrel in a rotatable matching manner, and then the excircles at two ends of the guide wheel mandrel are fixed on the guide wheel support;

respectively fastening the paired inner rings of the hand lever bearing on bearing sections on two sides of the hand lever fulcrum;

in the pull rod pushed by hand, a stud of a hand bearing is matched with a screw seat of the hand rod, a crank bearing is placed in a curved hole of the hand rod, and an eccentric bearing is placed in an eccentric hole of a pressure rod;

in the crankshaft assembly, firstly, a crank bearing inner ring is fastened on a crank mandrel in the middle, then paired crank mandrel holes are fixed on the outer circular surfaces on two sides of the crank mandrel in an interference fit manner, and in addition, a center bearing inner ring is fixed on the crank mandrel in an interference fit manner;

in the seat force compression bar, a compression bearing stud is matched with a compression bar screw seat;

seventhly, in the seat force lever piece, a seat lever support shaft is placed in a seat lever support hole, and a lifting seat support column is inserted into a seat lock tube inner hole;

secondly, mutually assembling the steering components;

thirdly, mutually assembling the driving components;

and fourthly, assembling the conventional components with each other.

As a further improvement:

in the steering transmission chain, an inner hole of a bearing of an upper plate of a cross shaft and an inner hole of a bearing of a lower plate of the cross shaft can be respectively fixed on a joint of the cross shaft in a swinging way; sleeving a spline expansion pipe on a stud spline shaft in advance, aligning a concave conical surface of the pipe with the convex conical expansion column upwards, and matching a pipe expansion nut with a stud at the lower end of the stud spline shaft without screwing;

fixing a direction cross bar on the excircle of the upper section of a steering middle pipe through a staggered cross hole faucet piece (the excircle of the upper section of the steering middle pipe is fixed through a vertical hole on the staggered cross hole faucet piece in the conventional technology, the excircle of the middle part of the direction cross bar is fixed through a horizontal hole on the staggered cross hole faucet piece), pressing the excircle of the lower end of a steering pipe column into a corresponding hole of an upper plate of a cross shaft in an interference fit manner or fixing a welding piece, and only performing axial sliding when the upper end of the steering pipe column is inserted into a steering pipe sleeve;

sleeving a spline expansion pipe on the stud spline shaft, and matching an expansion pipe nut with the lower end thread of the stud spline shaft to form a conical surface loose fit between the spline expansion pipe and the convex cone expansion column;

as a further improvement:

in the hand-push pull rod, a hand-bearing nut is firstly positioned at the root of a hand-bearing stud in a spiral fit manner, then the hand-bearing stud is matched with a hand-rod screw seat and is spirally adjusted to a designed length position, and finally the hand-bearing nut is fastened to force the rear end face of the hand-bearing nut to be tightly attached to the front end face of the hand-rod screw seat so as to prevent looseness;

when the hand push pull rod main body is formed by punching a plate, the crank bearing is placed in the crank hole of the hand lever, and the eccentric bearing is placed in the eccentric hole of the pressure lever;

firstly, the rear ends of the two symmetrical half-formed push-pull rod main bodies are pushed by a hand rod rivet, and then the front ends of the two symmetrical half-formed push-pull rod main bodies are pushed by a hand rod screw seat welding piece, so that the two symmetrical half-formed push-pull rod main bodies form an integral structure;

when the hand push pull rod main body is integrally processed, the crank bearing is placed in the hand rod curved hole, the eccentric bearing is placed in the pressure rod eccentric hole, the two end faces of the hand rod curved hole are forced to close up by a first special flanging tool to limit the axial displacement of the crank bearing, and the two end faces of the pressure rod eccentric hole are forced to close up by a second special flanging tool to limit the axial displacement of the eccentric bearing;

as a further improvement:

assembling the steering components:

the screw hole seat of the upper bearing on the hand lever element sequentially passes through the lever opening seat and the upper opening of the hand lever from bottom to top, the outer ring of the hand lever bearing is placed in the lever opening seat, the help lever gland is fixed on the end surface of the lower opening of the lever opening seat by four groups of frame cover bolts, and the outer ring of the hand lever bearing is fixed in the lever opening seat by the help lever gland;

the middle line guide wheels on the guide wheel supports roll along the paired guide rails, the wheel seat fixing holes are aligned with the guide wheel seat holes, the guide wheel bolt groups sequentially pass through the guide wheel support fixing holes and the guide wheel seat holes and are fastened, the stacked middle line guide wheels are fixed on two sides of the manual lever, and the middle line guide wheels are kept in rolling fit at the inner sides of the paired guide rails;

secondly, sequentially pressing one split bearing inner ring and a bearing space ring into the root part of the excircle of the outer thread through hole pipe in advance, enabling the outer thread through hole pipe on the front fork wheel set to penetrate through a front fork hole seat from bottom to top, pressing the other split bearing inner ring into the excircle of the outer thread through hole pipe and locating at the upper end of the bearing space ring, and enabling a front fork nut and the outer thread of the outer thread through hole pipe to be matched with each other to limit the axial displacement of the split bearing inner ring relative to the split bearing outer ring;

thirdly, the stud spline shaft and the spline expanding tube penetrate through the inner through hole of the outer through hole from top to bottom, the nut of the expanding tube is screwed up to be tightly matched with the thread at the lower end of the stud spline shaft, conical surface extrusion is formed between the concave conical surface and the convex conical expanding column of the breakoff tube, and the outer circle of the breakoff tube expanding surface is forced to expand and extrude the inner hole wall of the outer through hole tube to form expansion fixed connection;

and (IV) sleeving a steering pipe sleeve on the steering transmission chain into the steering pipe column, inserting an upper bearing section at the upper end of the steering middle pipe into an inner hole of the spherical upper bearing from bottom to top, and fastening an inner ring of the spherical upper bearing on the upper bearing section by using an upper fastening screw.

As a further improvement:

assembling the driving components:

firstly, aligning seat lever fulcrum bearing inner holes on seat lever parts on two sides with seat lever branch pipe inner holes, sequentially inserting seat lever shafts on the two sides into the seat lever fulcrum bearing inner holes and the seat lever branch pipe inner holes in a pressure manner, and finally, fastening and matching two seat lever screws with screw holes on two sides of the seat lever shaft respectively, fastening seat lever fulcrum bearing inner rings on the seat lever shaft columns and extruding end faces of the seat lever fulcrum bearing inner rings on two end faces of the seat lever branch pipe;

secondly, sequentially penetrating a spherical pressure bearing on the seat pressure rod through a crankshaft open seat and a pressure rod upper opening from bottom to top, aligning an inner hole of the spherical pressure bearing with an inner hole of a pressure rod hole seat, sequentially penetrating a pressing buckling pin through the inner hole of the spherical pressure bearing and the inner hole of the pressure rod hole seat, and mutually screwing two ends of the pressing buckling pin to fasten an inner ring of the spherical pressure bearing on the end surface of the pressure rod hole seat;

the central bearing corresponds to the crankshaft open seat, at least four groups of crank case bolts fasten a crankcase cover on the lower end surface of the crankshaft open seat, the crankcase cover fixes the outer ring of the central bearing on the crankshaft open seat, and the two ends of the eccentric buckling pin are mutually screwed to fasten the inner ring of the eccentric bearing on the end surface of the compression bar fork seat; (ii) a

And (III) inserting the spherical hand shaft at the front end of the hand push pull rod into the hand rod seat, sequentially passing through the hand rod seat plate and the inner hole of the spherical hand bearing by the hand buckling pin, and fastening the inner ring of the spherical hand bearing in the hand rod seat plate by the hand buckling pin.

Has the advantages that:

firstly, the structural design breaks through the conventional:

the main beam of the vehicle body plate is provided with a pair of guide rails, a lever open seat, a crankshaft open seat and a seat lever branch pipe, the pair of guide rails in the distinguishing structure technical characteristics ensure that the whole bearing on the spherical surface at the upper end of the lever piece only swings back and forth without swinging left and right, and the direction cross bar is firm to control steering and push and pull to do work;

the seat lever branch pipe and the lifting seat in the distinguishing structure technical characteristics are arranged at a long distance, so that the lifting seat is ensured to move up and down to do work and only swing at a small angle, and the riding is comfortable without leaning forward and leaning backward;

secondly, a center line guide wheel arranged on the manual lever part is in rolling fit with the paired guide rails, so that the spherical upper bearing, the direction cross bar and the steering transmission chain are ensured to work on the center line of the vehicle body; the eccentric bearing and the crank bearing are arranged on the hand push pull rod in a superposed manner, so that the hand push pull rod and the seat force pressure rod are all arranged in the middle, the spacing between the crank throw pedals at two sides is reduced, the condition that the whole bicycle can be ridden after two legs are separated by a larger spacing is avoided, the whole bicycle can be safely turned at an inclination angle of 20 degrees, and the riding posture is attractive and safe;

the non-linear torque transmission mechanism is combined with the hand lever bearing, so that the front fork wheel set is controlled by the directional cross lever to steer without influencing simultaneous push-pull work, and the non-linear torque transmission mechanism also realizes that the front fork wheel set can still be flexibly controlled to steer while the directional cross lever is pushed and pulled to do work;

a convex cone expansion column is adopted between the lower plate of the cross shaft and the outer through hole pipe to correspondingly break the concave conical surface of the pipe and a stud spline shaft to correspondingly expand the spline groove of the pipe, so that the convex cone expansion column extrudes the concave conical surface of the pipe when a stud at the lower end of the stud spline shaft is screwed down by a pipe expansion nut, and the outer circular expansion surface of the pipe is forced to expand and extrude the inner hole wall of the outer through hole pipe to form expansion fixed connection;

when the device is disassembled, the tube expansion nut and the stud at the lower end of the stud spline shaft are loosened for one circle without separation, and the stud at the lower end of the stud spline shaft is slightly knocked from bottom to top, so that the stud at the lower end of the stud spline shaft transfers force to separate the convex cone expansion column from the corresponding tube breaking concave conical surface, the outer circle of the tube breaking expansion surface recovers and does not extrude the inner hole wall of the outer through hole tube, and the stud spline shaft, the spline expansion tube and the tube expansion nut can be pulled out of the inner through hole of the outer through hole tube from bottom to top.

Drawings

Fig. 1 is a half-sectional view of a body panel 90 of the present invention.

Fig. 2 is a diagram of the dynamic position of the push rod 40, crankshaft assembly 50, seat strut 60, seat lever member 70, and hand lever member 80.

Fig. 3 is a diagram of the drive module application with the bell crank pedal 56 in the final position of the circle of motion.

Fig. 4 is a state view of the bell crank pedal 56 of fig. 3 rotated 90 degrees counterclockwise and then positioned at the uppermost position of the movement circle.

Fig. 5 is a state view of the bell crank pedal 56 of fig. 3 rotated 180 degrees counterclockwise and located at the most forward position of the movement circle.

Fig. 6 is a state view of the bell crank pedal 56 of fig. 6 rotated 270 degrees counterclockwise and then positioned at the lowest position of the movement circle.

Fig. 7 is a partially enlarged view of the state in which the direction bar 17 in fig. 3 is turned.

Fig. 8 is a partially enlarged view of the state in which the direction bar 17 in fig. 5 is turned.

Fig. 9 is a partially enlarged view of the steering control part of the steering chain 10 shown in fig. 7 after being disassembled.

Fig. 10 is a partially enlarged view of the steering actuator after the steering chain 10 of fig. 7 is disassembled.

FIG. 11 is an isolated enlarged view of the spline expander 26 of FIG. 10.

Fig. 12 is a top view of fig. 11.

Fig. 13 is an isolated enlarged view of the front fork wheel set 20 of fig. 7 or 8.

Fig. 14 is an isolated enlarged view of the rear fork wheel set 30 of fig. 3-6.

Fig. 15 is an isolated enlarged view of the hand lever 80 of fig. 8.

Fig. 16 is a sectional view taken along line a-a in fig. 2.

Fig. 17 is a side partial view of the hand lever 80 of fig. 15.

Fig. 18 is a sectional view showing the positional relationship between the center line guide pulley 89 of fig. 17 and the pair of guide rails 15 of fig. 2 to 6.

Fig. 19 is an enlarged, isolated view of the push-pull rod 40 of fig. 2.

Fig. 20 is a sectional view of the connection between the push rod 40 and the hand lever plate holder 84.

Fig. 21 is a partial cross-sectional view of the crankshaft assembly 50 of fig. 4.

Fig. 22 is an isolated enlarged view of the crankshaft assembly 50 of fig. 21 with the bell crank pedal 56 and the crankshaft nut 58 removed.

Fig. 23 is an isolated enlarged view of the seat strut 60 of fig. 4 or 6.

Fig. 24 is a cross-sectional view of the connection between the seat strut 60 and the strut aperture seat 76.

Fig. 25 is an enlarged view of the seating force lever 70 of fig. 4 or 6.

Fig. 26 is a sectional view of the seat bar support bearing 99 of fig. 4 or 6 taken along the spherical pressure bearing 77.

FIG. 27 is an isolated enlarged view of the seat lever post 57 and seat lever branch 97 of FIG. 26

Detailed Description

The various moving parts in fig. 2 include: a hand lever member 80, a push pull rod 40, a crank assembly 50, a seat lever 60, and a seat lever member 70.

The positional relationship between the steering chain 10 and the fork wheel set 20, the hand lever 80, and the body panel 90 is highlighted in fig. 7 and 8, and other component elements are omitted and hidden.

The front fork set 20 in fig. 13 omits at least the conventional front wheel and the front brake actuator.

The rear fork set 30 of FIG. 14 omits at least the conventional rear wheel with ratchet sprockets and the rear brake actuator

In FIGS. 1-27:

the steering device comprises a steering transmission chain 10, a spherical upper bearing 11, a steering column 12, a steering middle pipe 13, an upper bearing section 14, a pair of guide rails 15, a steering pipe sleeve 16, a direction cross bar 17, an upper bearing outer stud 18 and left and right handles 19;

the front fork wheel set 20, an external thread through hole pipe 21, a cross shaft joint 22, a cross shaft upper plate 23, a cross shaft lower plate 24, a convex cone expansion column 25, a spline expansion pipe 26, a stud spline shaft 27, an upper bearing nut 28 and an expansion pipe nut 29;

a rear fork wheel set 30, a boost gland 31, a crankcase cover 32, a crank bearing 33, a rear fork support hole 34, a wheel seat fixing hole 35, a spring rear seat 36, a spring outlet 37, a damping spring 38 and a damping front seat 39;

a hand push pull rod 40, a hand lever screw seat 41, a hand bearing nut 42, a hand bearing stud 43, a spherical hand bearing 44, a hand lever curved hole 45, a pressure lever offset hole 46, a hand lever rivet 47, a hand buckling pin 48 and a front fork nut 49;

the crank assembly 50, the split crank 51, the crank center shaft 52, the crank center hole 53, the crank center shaft 54, the center bearing 55, the crank pedal 56, the seat lever shaft post 57, the crank nut 58 and the crank chain wheel 59;

the device comprises a seat force compression bar 60, a tube expansion spline groove 61, a tube breaking concave conical surface 62, a tube breaking groove 63, an offset buckling pin 64, a compression bar fork seat 65, an eccentric bearing 66, a compression bearing stud 67, a compression bearing nut 68 and a compression bar screw seat 69;

a seat force lever piece 70, a seat lock tube 71, a lifting seat 72, a split bearing 73, a bearing spacer ring 74, a pressing buckling pin 75, a pressure lever hole seat 76, a spherical pressing bearing 77, a pipe breaking expansion surface 78 and a seat lever support hole 79;

a hand-powered lever piece 80, an upper bearing screw hole seat 81, a guide wheel seat hole 82, a guide wheel screw group 83, a hand lever plate seat 84, a guide wheel support seat 85, a guide wheel core shaft 86, a hand lever fulcrum shaft 87, a hand lever bearing 88 and a midline guide wheel 89;

the device comprises a vehicle body plate 90, a front fork hole seat 91, a lever opening seat 92, a crankshaft opening seat 93, a rear fork hole seat 94, a guide rail base 95, a pressure lever upper opening 96, a lever support pipe 97, a lever upper opening 98 and a lever support bearing 99.

In fig. 1-14, the assembling method of the forward resultant riding vehicle comprises a steering transmission chain 10, a front fork wheel set 20, a rear fork wheel set 30, a vehicle body plate 90 and a driving module, wherein the driving module comprises a hand push pull rod 40, a crankshaft assembly 50, a seat force pressure rod 60, a seat force lever part 70, a hand force lever part 80, conventional front and rear chain wheels and chains, the front end of the vehicle body plate 90 can be rotationally fixed with the front fork wheel set 20, the upper end of the front fork wheel set 20 is provided with an outer through hole pipe 21, and the rear end of the vehicle body plate 90 is connected with the rear fork wheel set 30, and the improvement is that:

the steering transmission chain 10 consists of a steering control component and a steering execution component, the steering control component comprises a spherical upper bearing 11, a direction cross bar 17, a steering middle pipe 13 and a steering pipe sleeve 16, and the direction cross bar 17 is at least provided with a front wheel brake control brake and a rear wheel brake control brake; the steering executing component comprises a steering column 12, a cross shaft joint head 22, a convex cone expansion column 25 and a spline expansion tube 26, and the steering sleeve 16 is in axial sliding fit with the steering column 12;

the universal joint head 22 can be fixed in a bearing hole of the universal joint upper plate 23 and a bearing hole of the universal joint lower plate 24 in a swinging mode respectively, and the universal joint head 22, the universal joint upper plate 23 and the universal joint lower plate 24 form a universal joint head which can transmit non-linear rotation; the lower end of the cross shaft lower plate 24 is fixedly connected with the convex cone expansion column 25, the lower end of the convex cone expansion column 25 is provided with a stud spline shaft 27, a spline expansion pipe 26 is sleeved on the stud spline shaft 27, an expansion pipe nut 29 is in threaded tightening fit with the stud spline shaft 27 to enable the spline expansion pipe 26 and the convex cone expansion column 25 to be in conical surface fit, and the expanded spline expansion pipe 26 is fastened in the inner hole wall of the outer through hole pipe 21;

the lower end of the steering column 12 is fixed on the upper weldment of the cross shaft upper plate 23, the number of the steering columns 12 is at least two, the steering pipe sleeve 16 is fixedly connected with the lower section of the steering middle pipe 13, the upper end of the steering middle pipe 13 is provided with an upper bearing section 14, the upper bearing section 14 is tightly fixed on the inner ring of the spherical upper bearing 11, and the direction cross bar 17 is detachably fixed on the upper section of the steering middle pipe 13;

the car body plate 90 comprises a front fork hole seat 91, a lever open seat 92, a crankshaft open seat 93, a rear fork hole seat 94, a guide rail base 95 and a seat lever branch pipe 97, wherein a seat lever shaft post 57 can be axially fixed in an inner hole of the seat lever branch pipe 97 in a movable manner; a compression rod upper opening 96 is correspondingly arranged above the crankshaft open seat 93, the seat force lever piece 70 penetrates through the compression rod upper opening 96, and a vibration damping front seat 39 and a spring outlet 37 are also arranged behind the compression rod upper opening 96;

a lever upper opening 98 is correspondingly arranged above the lever open seat 92, and the hand lever piece 80 penetrates through the lever upper opening 98; guide rail bases 95 are arranged at the front and the rear of the upper opening 98 of the hand lever, and the front and the rear ends of the paired guide rails 15 are respectively fixed on the guide rail bases 95 arranged at the front and the rear;

the front fork hole seat 91 is rotatably fixed with the outer screw through hole pipe 21, and the lower end of the hand lever piece 80 is rotatably fixed on the hand lever open seat 92 by the aid of the lever gland 31; the outer ring of the spherical upper bearing 11 is fixed at the upper end of the manual lever part 80, and the lower half section of the manual lever part 80 can be fixedly connected with the front end of the hand-push pull rod 40 in a swinging manner;

a seat force lever part 70 can be fixed on the seat force lever branch pipe 97 in a swinging mode, the lifting seat 72 is connected above the rear end of the seat force lever part 70, and the upper end of the seat force pressure lever 60 can be fixedly connected below the rear half section of the seat force lever part 70 in a swinging mode;

the crank assembly 50 is rotatably fixed on the crank opening seat 93 by the crank cover 32, the rear end of the push pull rod 40 is eccentrically and rotatably fixed on the crank assembly 50, the lower end of the seat force pressing rod 60 is fixed on the crank assembly 50 in a rotatable mode, and the crank assembly 50 and the rear fork wheel set 30 transmit mechanical energy through a front chain wheel, a rear chain wheel and a chain.

As a further improvement:

a rear fork supporting hole 34 is formed in the lower position of the front end of the rear fork wheel set 30, and the rear fork supporting hole 34 is connected with the rear fork hole seat 94 in a swinging and rotating manner; a rear spring seat 36 is arranged at the upper position of the front end of the rear fork wheel set 30, the rear spring seat 36 can swing and fix the rear end of a damping spring 38, and the front end of the damping spring 38 can swing and fix the front damping seat 39; at least a conventional rear wheel with a ratchet sprocket and a rear brake actuator are fixed at the rear end of the rear fork wheel set 30, and at least a conventional front wheel and a front brake actuator are fixed at the lower end of the front fork wheel set 20.

As a further improvement:

in fig. 10-12, the spline expansion tube 26 is provided with an expansion tube spline groove 61, a tube-breaking concave conical surface 62, a tube-breaking groove 63 and a tube-breaking expansion surface 78, the expansion tube spline groove 61 and the stud spline shaft 27 are axially movably matched, the top end of the tube-breaking expansion surface 78 is provided with the tube-breaking concave conical surface 62, the tube-breaking concave conical surface 62 and the convex cone expansion column 25 are in close fit or separated fit, the circumference of the tube-breaking expansion surface 78 is provided with more than two tube-breaking grooves 63, and the outer circular surface of the tube-breaking expansion surface 78 and the inner hole wall of the outer through hole tube 21 are in expandable fit or separated fit;

split bearings 73 are arranged between the outer circle of the outer threaded through hole pipe 21 and the front fork hole seat 91 to realize rotatable matching, a bearing space ring 74 is further arranged between the inner rings of the two split bearings 73, a front fork nut 49 is in external thread matching with the upper end of the outer threaded through hole pipe 21, the inner rings of the two split bearings 73 are fastened on the stepped shaft section of the outer threaded through hole pipe 21, and the outer rings of the two split bearings 73 are fastened in inner holes at two ends of the front fork hole seat 91; dustproof cushion discs can be additionally arranged at the upper end and the lower end of the two split bearings 73.

As a further improvement:

in fig. 15-18, the outer ring of the spherical upper bearing 11 is provided with an upper bearing outer stud 18, the upper end of the hand lever 80 is provided with an upper bearing screw hole seat 81, and the upper bearing screw hole seat 81 fixes the upper bearing outer stud 18;

a hand lever fulcrum 87 is arranged at the lower end of the hand force lever piece 80, and the inner ring of a hand lever bearing 88 is fixed at the two ends of the hand lever fulcrum 87; the outer ring of the lever bearing 88 is fixed in the lever opening seat 92; a hand lever plate seat 84 is arranged at the lower half section of the hand lever piece 80, and the hand lever plate seat 84 can be connected with the front end of the hand push pull rod 40 in a swinging and rotating manner;

the upper half section of the hand force lever piece 80 is provided with guide wheel seat holes 82, the paired guide wheel supports 85 are provided with wheel seat fixing holes 35, guide wheel bolt groups 83 penetrate through the guide wheel seat holes 82 and the wheel seat fixing holes 35, the guide wheel supports 85 are fixed on two sides of the upper half section of the hand force lever piece 80 by the guide wheel bolt groups 83, and two ends of a guide wheel mandrel 86 are fixed on the two paired guide wheel supports 85; the middle section of the guide wheel core shaft 86 is rotatably matched with a center line guide wheel 89, the center line guide wheel 89 rolls back and forth with the pair of guide rails 15, and the center line guide wheel 89 limits the hand lever part 80 to only swing back and forth and ensures that the hand lever part cannot swing left and right.

As a further improvement:

in fig. 19-21, the front end of the push-pull rod 40 is provided with a spherical hand bearing 44, and the rear end of the push-pull rod 40 is provided with a hand rod curved hole 45 and a press rod offset hole 46; the press rod eccentric hole 46 is positioned above the hand lever curved hole 45, the crank bearing 33 outer ring is fixed in the hand lever curved hole 45, and the eccentric bearing 66 outer ring is fixed in the press rod eccentric hole 46.

As a further improvement:

the main body of the hand push pull rod 40 is punched and formed into two halves by adopting a plate, the rear end of the main body of the hand push pull rod 40 is provided with a hand lever rivet 47 to rivet the rear ends of the two halves of the hand push pull rod 40 into a whole, and the front ends of the two halves of the hand push pull rod 40 are welded into a whole by a hand lever screw seat 41; a hand bearing stud 43 is arranged on the outer ring of the spherical hand bearing 44, the hand bearing stud 43 is detachably fixed in the hand lever screw seat 41, a hand bearing nut 42 is matched on the hand bearing stud 43, and the rear end face of the hand bearing nut 42 is tightly attached to the front end face of the hand lever screw seat 41; the hand snap pin 48 secures the spherical hand bearing 44 inner race within the hand lever seat plate 84.

As a further improvement:

in fig. 21-22, the crankshaft assembly 50 includes a split crank 51, a crank spindle 54 and a crank pedal 56, the split crank 51 is symmetrically provided with crank spindle holes 53 and crank spindles 52, and the pairs of crank spindles 52 are fixed with inner rings of a center bearing 55 in an interference fit manner;

a conventional square convex cone and a conventional central shaft stud are sequentially arranged on the outer side of the crank central shaft 52, a conventional square concave cone on the crank pedal 56 is matched with the conventional square convex cone on the crank central shaft 52, the conventional central shaft stud at the outer end of the crank central shaft 52 is matched with a crankshaft nut 58, and the crank pedal 56 is fastened at the outer end of the crank central shaft 52 by the crankshaft nut 58;

the outer circular surface of the central section of the crank mandrel 54 is fixed with the inner ring of the crank bearing 33, the two sides of the inner ring of the crank bearing 33 are respectively attached to the inner end surface of the crank center hole 53, and the outer circular surfaces of the two side sections of the crank mandrel 54 are fixed in an interference fit manner through the crank center hole 53;

the crank pedal 56 and the crank mandrel 54 are opposite to each other relative to the crank central shaft 52, and at least one side of the crank pedal 56 is provided with a crank chain wheel 59, the crank chain wheel 59 drives a ratchet wheel chain wheel on the rear wheel through a force transmission chain, and the crank chain wheel 59, the force transmission chain and the ratchet wheel chain wheel form a mechanical force transmission mechanism;

the lower end surface of the crankshaft open seat 93 is detachably fixed with a crankcase cover 32, and the crankcase cover 32 fixes the outer ring of the central bearing 55 in the crankshaft open seat 93.

As a further improvement:

in fig. 21-24, the upper end of the seat strut 60 is provided with a spherical bearing 77, the lower end of the seat strut 60 is provided with a strut fork seat 65, and the eccentric bearing 66 is fastened in the strut fork seat 65 by the eccentric pin 64.

As a further improvement:

the main body of the seat force compression bar 60 adopts a seamless pipe, the lower end of the main body of the seat force compression bar 60 is welded with a compression bar fork seat 65, and the upper end of the main body of the seat force compression bar 60 is provided with a compression bar screw seat 69; the outer ring of the spherical pressure bearing 77 is provided with a pressure bearing stud 67, the pressure bearing stud 67 is detachably fixed in the pressure lever screw seat 69, a pressure bearing nut 68 is matched on the pressure bearing stud 67, and the lower end face of the pressure bearing nut 68 is tightly attached to the upper end face of the pressure lever screw seat 69.

As a further improvement:

in fig. 25-27, the front end of the seat force lever 70 is provided with a seat lever supporting hole 79, the seat lever supporting hole 79 is fixed on the outer ring of a seat lever supporting bearing 99, the inner ring of the seat lever supporting bearing 99 is fixed on the seat lever shaft 57, the rear end of the seat force lever 70 is fixed with a seat locking tube 71, and the inner hole of the seat locking tube 71 is adjustably fastened with the lifting seat 72; the seat force lever piece 70 is further provided with a pressure lever hole seat 76, and the pressure lever hole seat 76 is positioned between the seat lever support hole 79 and the seat lock tube 71; pressing the buckling pin 75 to fasten the inner ring of the spherical pressing bearing 77 on the pressing rod hole seat 76; the distance from the upper bearing screw boss 81 to the handle bar fulcrum 87 is four to six times the distance from the handle bar boss plate 84 to the handle bar fulcrum 87.

In the examples:

the maximum included angle of left and right turning of the direction bar 17 is 60 degrees.

The pair of guide rails 15 have their own arc radii equal to the distance from the centerline guide wheel 89 to the hand lever fulcrum 87, ensuring that the centerline guide wheel 89 rolls back and forth along the pair of guide rails 15.

Hand butt pin 48, offset butt pin 64, and press butt pin 75, each of which is a conventional butt rivet.

The convex cone expansion column 25 and the stud spline shaft 27 are of an integral structure, and the lower end face of the cross shaft lower plate 24 and the upper end face of the convex cone expansion column 25 are welded into a whole; the lower end weldment of the steering column 12 is on the upper end surface of the spider upper plate 23.

The joint bearing is a self-lubricating bearing with spherical sliding fit between an inner ring and an outer ring. The two ends of the direction horizontal bar 17 are provided with a left handle 19 and a right handle 19, and the axis connecting line of the left handle 19 and the right handle runs through the spherical center of the spherical upper bearing 11.

The distance between the upper bearing screw hole seat 81 and the hand lever fulcrum 87 is five times that between the hand lever seat plate 84 and the hand lever fulcrum 87, and the two-hand push-pull force is amplified by five times;

when both hands do work by pushing and pulling, both hands pushing and pulling force acting on the left and right handles 19 is completely transmitted to the upper bearing screw hole seat 81 on the hand force lever part 80 through the spherical upper bearing 11, and the transmission efficiency is high; the push-pull force of both hands acting on the left and right handles 19 does not bring any bending moment resistance to the steering column 12 and the steering pipe sleeve 16, so that almost no normal acting force movement is realized between the steering column 12 and the steering pipe sleeve 16, and the friction-free movement has long service life.

In the case of the both-hand steering, the both-hand steering force acting on the left and right grips 19 is transmitted through the steering column 12, the steering sleeve 16 and the joint cross 22, and the joint cross 22 is transmitted to the outer through-hole tube 21 through the male expansion cylinder 25 and the spline expansion cylinder 26 to control the steering of the front fork 20, and the both-hand steering force acting on the left and right grips 19 does not affect the hand lever 80 through the spherical upper bearing 11.

The distance from the hand lever fulcrum 87 to the spherical upper bearing 11 is four to six times the distance from the hand lever fulcrum 87 to the spherical hand bearing 44;

the hand lever fulcrum 87 is supported in the hand lever opening seat 92 in a swinging manner, and the hand push-pull force acting on the spherical upper bearing 11 drives the hand push-pull rod 40 to do work on the crank assembly 50 through the spherical hand bearing 44 with five times of acting force.

A variable triangle is formed among the spherical upper bearing 11, the universal joint head 22 and the hand lever bearing 88, wherein a fixed edge is arranged between the universal joint head 22 and the hand lever bearing 88, and the length and the angle of the fixed edge cannot be changed; a swinging edge is arranged between the spherical upper bearing 11 and the hand lever bearing 88, the length cannot be changed, and the angle can be changed by taking the hand lever bearing 88 as a base point to drive the spherical upper bearing 11 to swing back and forth; a swinging telescopic edge is arranged between the spherical upper bearing 11 and the universal joint head 22, and by means of the specific functions of the spherical upper bearing 11 and the universal joint head 22, the angle of the steering middle pipe 13 can be changed by swinging the spherical upper bearing 11 forwards and backwards by taking the universal joint head 22 as a base point, and the steering middle pipe can be moved axially in the steering pipe sleeve 16 through the steering pipe column 12, so that the distance between the spherical upper bearing 11 and the universal joint head 22 can be freely stretched.

The variable triangle realizes that the direction cross bar 17 can still flexibly control the steering of the front fork wheel set 20 when the hand lever piece 80 is driven by pushing and pulling work; on the contrary, the direction bar 17 can still push and pull the hand lever 80 to do work when controlling the steering of the front fork wheel set 20, so as to realize the controllable traffic safety riding.

The small swing angle of the seat force lever part 70 ensures that the lifting seat 72 is relatively stable when lifted, and the distance from the spherical pressure bearing 77 to the seat force lever fulcrum bearing 99 is more than ten times of the distance from the curved central shaft 52 to the crank central hole 53, so the inclination angle of the lifting seat 72 when lifted is less than plus or minus five degrees; the distance between the seat lock tube 71 and the seat lever support bearing 99 is greater than the distance between the spherical pressure bearing 77 and the seat lever support bearing 99, so that the seat force amplification acts on the seat force lever 70 to drive the crank assembly 50 to do work.

The distance between the central axis of the crank pedal 56 and the central axis of the crank central shaft 52 is five to six times larger than the distance between the central axis of the crank central hole 53 and the central axis of the crank central shaft 52.

The assembling process comprises the following steps:

firstly, pre-packaging each component group:

vehicle body panel 90, fig. 10:

firstly, fixing a vehicle body plate 90 in the air, and pressing outer rings of the two split bearings 73 into two ends of an inner hole of the front fork hole seat 91 in advance; the bearing inner hole of the cross shaft upper plate 23 and the bearing inner hole of the cross shaft lower plate 24 can be respectively fixed on the cross shaft joint head 22 in a swinging way; sleeving a spline expansion pipe 26 on a stud spline shaft 27 in advance, aligning a pipe breaking concave conical surface 62 upwards with a convex cone expansion column 25, and matching a pipe expansion nut 29 with a stud at the lower end of the stud spline shaft 27 without screwing;

(ii) a turnaround chain 10, fig. 9-10:

fixing a direction cross bar 17 on the excircle of the upper section of a steering middle pipe 13 through a staggered cross hole faucet piece (the excircle of the upper section of the steering middle pipe 13 is fixed by a vertical hole on the staggered cross hole faucet piece in the conventional technology, the excircle of the middle section of the direction cross bar 17 is fixed by a horizontal hole on the staggered cross hole faucet piece), pressing the excircle of the lower end of a steering column 12 into a corresponding hole of a cross shaft upper plate 23 in an interference fit manner or fixing a welding piece, and only performing axial sliding when the upper end of the steering column 12 is inserted into a steering pipe sleeve 16;

the spline expanding tube 26 is sleeved on the stud spline shaft 27, and the expanding tube nut 29 is matched with the lower end thread of the stud spline shaft 27 to form conical surface loose fitting between the spline expanding tube 26 and the convex cone expanding column 25.

(iii) the manual lever 80 is preassembled, fig. 15-18:

the upper bearing nut 28 is arranged at the root of the upper bearing outer stud 18 in a screw fit mode in advance, the upper bearing outer stud 18 is matched with the upper bearing screw hole seat 81 and is adjusted to the designed length position in a screw fit mode, and finally the upper bearing nut 28 is fastened to force the rear end face of the upper bearing nut 28 to be tightly attached to the front end face of the upper bearing screw hole seat 81 to prevent loosening;

an inner hole of a center line guide wheel 89 is sleeved on the excircle of a guide wheel mandrel 86 in a rotatable and matched manner in advance, and then excircles at two ends of the guide wheel mandrel 86 are fixed on a guide wheel support 85;

inner rings of the paired hand lever bearings 88 are respectively fastened to bearing sections on both sides of the hand lever fulcrum shaft 87;

(IV) the push rod 40 is preassembled, FIGS. 19-21:

the hand bearing nut 42 is arranged at the root of the hand bearing stud 43 in a screw fit mode in advance, the hand bearing stud 43 is matched with the hand rod screw seat 41 and is adjusted to the designed length position in a screw fit mode, and finally the hand bearing nut 42 is fastened to force the rear end face of the hand bearing nut 42 to be tightly attached to the front end face of the hand rod screw seat 41 to prevent loosening;

when the main body of the hand push pull rod 40 is formed by punching a plate, the crank bearing 33 is placed in the hand lever curved hole 45, and the eccentric bearing 66 is placed in the press rod eccentric hole 46;

firstly, the rear end of the main body of the push pull rod 40 which is symmetrically formed in two halves is welded by the hand rod rivet 47, and then the front end of the main body of the push pull rod 40 is welded by the hand rod screw seat 41, so that the main body of the push pull rod 40 which is symmetrically formed in two halves is of an integral structure;

when the main body of the hand push pull rod 40 is integrally processed, the crank bearing 33 is placed in the hand lever curved hole 45, the eccentric bearing 66 is placed in the press rod offset hole 46, the first special flanging tool is used for forcing the two end faces of the hand lever curved hole 45 to close up to limit the axial displacement of the crank bearing 33, and the second special flanging tool is used for forcing the two end faces of the press rod offset hole 46 to close up to limit the axial displacement of the eccentric bearing 66.

(v) crankshaft assembly 50 preassembled, fig. 21-22:

the inner ring of the central bearing 55 is fixed on the curved central shaft 52 in advance in an interference fit manner, and the methods on the two sides are the same;

firstly, fastening the inner ring of the crank bearing 33 on the crank mandrel 54 in the center, and fixing the paired crank mandrel holes 53 on the outer circular surfaces on the two sides of the crank mandrel 54 in an interference fit manner by adopting a press machine;

finally, a crank pedal 56 is fastened at the outer end of the crank central shaft 52 by using a crank nut 58 to be in screw fit with a conventional central shaft stud at the outer end of the crank central shaft 52, the crank pedal 56 and the crank spindle 54 are positioned at two sides of the crank central shaft 52, and an included angle of 180 degrees is formed between the crank pedal 56 and the crank spindle 54 relative to the crank central shaft 52;

(sixth) seat strut 60 is preassembled, fig. 23-24:

the pressure bearing nut 68 is arranged at the root of the pressure bearing stud 67 in a screw fit mode in advance, the pressure bearing stud 67 is matched with the pressure lever screw seat 69 and is adjusted to the designed length position in a screw fit mode, the pressure bearing nut 68 is fastened, and the lower end face of the pressure bearing nut 68 is forced to be tightly attached to the upper end face of the pressure lever screw seat 69 to prevent looseness;

(vii) seat force lever 70 preassembled, fig. 25-26:

the seat bar support bearings 99 are placed in the seat bar support holes 79, and the elevating seat 72 supports the column inserted into the inner hole of the seat lock tube 71.

Secondly, mutually assembling the steering components (figures 2-10):

the upper bearing screw hole seat 81 on the hand lever element 80 passes through the hand lever open seat 92 and the hand lever upper opening 98 from bottom to top in sequence, so that the outer ring of the hand lever bearing 88 is placed in the hand lever open seat 92, the assistant lever gland 31 is fixed on the end surface of the lower opening of the hand lever open seat 92 by four groups of frame cover bolts, and the outer ring of the hand lever bearing 88 is fixed in the hand lever open seat 92 by the assistant lever gland 31;

the center line guide wheels 89 on the guide wheel support 85 roll along the paired guide rails 15, the wheel seat fixing holes 35 are aligned with the guide wheel seat holes 82, the guide wheel bolt groups 83 sequentially pass through the guide wheel support 85 fixing holes and the guide wheel seat holes 82 and are fastened, the stacked center line guide wheels 89 are fixed on two sides of the manual lever piece 80, and the center line guide wheels 89 are kept in rolling fit on the inner sides of the paired guide rails 15;

secondly, sequentially pressing an inner ring of the split bearing 73 and the bearing space ring 74 into the root part of the outer circle of the outer threaded through hole pipe 21 in advance, enabling the outer threaded through hole pipe 21 on the front fork wheel set 20 to penetrate through the front fork hole seat 91 from bottom to top, then pressing the inner ring of the other split bearing 73 into the outer circle of the outer threaded through hole pipe 21 and locating at the upper end of the bearing space ring 74, and enabling the front fork nut 49 to be matched with the outer thread of the outer threaded through hole pipe 21 to limit the axial displacement of the inner ring of the split bearing 73 relative to the outer ring of the split bearing 73;

thirdly, the stud spline shaft 27 and the spline expanding tube 26 penetrate through the inner through hole of the outer through hole tube 21 from top to bottom, the tube expanding nut 29 is screwed and tightly matched with the thread at the lower end of the stud spline shaft 27, a conical surface is formed between the tube-severing concave conical surface 62 and the convex cone expanding column 25 for extrusion, and the excircle of the tube-severing expanding surface 78 is forced to expand to extrude the inner hole wall of the outer through hole tube 21 to form expansion fixed connection;

and (IV) sleeving a steering pipe sleeve 16 on the steering transmission chain 10 into the steering pipe column 12, inserting an upper bearing section 14 at the upper end of a steering middle pipe 13 into an inner hole of the spherical upper bearing 11 from bottom to top, and fastening an inner ring of the spherical upper bearing 11 on the upper bearing section 14 by an upper fastening screw.

Thirdly, mutually assembling driving components

Firstly, aligning inner holes of seat lever fulcrum bearings 99 on seat force lever parts 70 at two sides with inner holes of seat lever branch pipes 97, sequentially inserting seat lever shaft columns 57 at two sides into the inner holes of the seat lever fulcrum bearings 99 and the inner holes of the seat lever branch pipes 97 under pressure, and finally, fastening and matching two seat lever screws with screw holes at two sides of the seat lever shaft columns 57 respectively, fastening inner rings of the seat lever fulcrum bearings 99 on the seat lever shaft columns 57 and extruding end faces of the inner rings of the seat lever fulcrum bearings 99 on two end faces of the seat lever branch pipes 97;

secondly, the spherical pressing bearing 77 on the seat force pressing rod 60 sequentially penetrates through the crankshaft open seat 93 and the pressing rod upper opening 96 from bottom to top, the inner hole of the spherical pressing bearing 77 is aligned with the inner hole of the pressing rod hole seat 76, the pressing buckling pin 75 sequentially penetrates through the inner hole of the spherical pressing bearing 77 and the inner hole of the pressing rod hole seat 76, and the two ends of the pressing buckling pin 75 are mutually screwed to fasten the inner ring of the spherical pressing bearing 77 on the end surface of the pressing rod hole seat 76;

the central bearing 55 corresponds to the crankshaft open seat 93, at least four groups of crankcase bolts fasten the crankcase cover 32 on the lower end surface of the crankshaft open seat 93, the crankcase cover 32 fixes the outer ring of the central bearing 55 in the crankshaft open seat 93, and the two ends of the eccentric buckling pin 64 are mutually screwed, so that the inner ring of the eccentric bearing 66 is fastened on the end surface of the pressure rod fork seat 65;

third, the spherical hand bearing 44 at the front end of the hand-push pull rod 40 is inserted into the hand-lever plate seat 84, the hand-buckling pin 48 sequentially passes through the hand-lever plate seat 84 and the inner hole of the spherical hand bearing 44, and the hand-buckling pin 48 fastens the inner ring of the spherical hand bearing 44 in the hand-lever plate seat 84.

Four, mutual assembly of conventional components (fig. 1-7 and fig. 18):

other conventional components on the front fork-wheel set 20, such as: the front wheel inner and outer tyre sets, the front wheel brake actuating member and the like are assembled according to a conventional assembly method, and are not described again;

other conventional components on the (second) directional bar 17, such as: the front and rear wheel brake control members, the bell, the speed regulation control member and the like are assembled according to a conventional assembly method, and are not described again;

thirdly, a rear spring seat 36 on the rear fork wheel set 30 is fixedly connected with the rear end of a damping spring 38 through a rear fork damping screw, and the front end of the damping spring 38 is fixedly connected with a front damping seat 39 through a frame damping screw;

aligning the rear fork support hole 34 on the rear fork wheel set 30 with the rear fork hole seat 94, and fixing the rear fork support hole 34 and the rear fork hole seat 94 by a frame rear fork screw in a swinging and rotating manner;

other conventional components on the rear fork wheel set 30, such as: the rear inner and outer tires, the speed regulation actuator, the rear wheel brake actuator and the like are assembled according to a conventional assembly method, and are not described again.

The riding characteristics are as follows:

in fig. 3, the crank pedal 56 is located in the second half of the movement circle and cannot apply pedaling work, when the crank pedal 56 is located in the rearmost position of the movement circle, the crank bearing 33 is located in the foremost position of the movement circle, the hand push pull rod 40 which works horizontally meets the crank near-end dead point of the crank link mechanism, the acting force of the hand push pull rod 40 in the position cannot rotate the crank mandrel 54, that is, the hand holding the direction cross bar 17 cannot drive the crank assembly 50 to apply work by rotating the hand force bar 80;

meanwhile, after the rider pushes the two hands to do work, the rider lifts knees and applies pressure from the lifting seat 72 by sitting posture gravity, the seat force lever piece 70 continuously swings clockwise by taking the seat force lever fulcrum bearing 99 as the center, the seat force pressure lever 60 pushes the crank mandrel 54 to continuously slow down and incline downwards, and the seat force pressure lever piece 70 amplifies the sitting posture gravity and drives the crank mandrel 54 to rotate anticlockwise by taking the crank mandrel 52 as the center to do work;

the sitting posture gravity at the position has the highest work efficiency from top to bottom, the driving crankshaft assembly 50 and the driving chain wheel thereof rotate anticlockwise by taking the central bearing 55 as a fulcrum, and the rear wheel of the bicycle is driven to roll forwards through the mechanical force transmission mechanism to drive the whole bicycle to move forwards together with a person;

the spherical upper bearing 11 in the variable triangle takes the hand bearing 88 as a fulcrum and is at an inflection point of changing from anticlockwise swing to clockwise swing; the steering transmission chain 10 takes the universal joint 22 as a fulcrum and is also at an inflection point of changing from anticlockwise swing to clockwise swing;

the spacing between the spherical upper bearing 11 and the universal joint head 22 begins to increase.

In fig. 4, the crank pedal 56 is at the highest point of the motion circle, and when encountering the 'high dead point' of a conventional bicycle, a rider cannot drive the crankshaft assembly 50 to rotate to do work by pedaling the crank pedal 56; the crank spindle 54 is at the lowest point of the motion circle, so the sitting weight on the seat bar 70 cannot drive the crank assembly 50 to do work through the seat bar 60;

meanwhile, a rider can hold the direction cross bar 17 by two hands to continue to do backward pulling force movement, force is transferred to the hand lever part 80 through the spherical upper bearing 11 and continues to swing clockwise by taking the hand lever bearing 88 as a fulcrum, the spherical hand bearing 44 on the hand lever part 80 transfers force to the hand push pull rod 40 to force the crank mandrel 54 to rotate anticlockwise to do work, the crank shaft component 50 is driven to rotate anticlockwise, the rear wheel of the bicycle is driven to roll forwards through the mechanical force transfer mechanism, and the whole bicycle is driven to move forwards together with the rider;

the spherical upper bearing 11 in the variable triangle continuously swings clockwise by taking the hand lever bearing 88 as a fulcrum; the steering transmission chain 10 continuously swings clockwise by taking the universal joint 22 as a fulcrum;

the distance between the spherical upper bearing 11 and the universal joint 22 is continuously increased from small to large;

the crank spindle 54 rotates counterclockwise with the seating force lever 60 at the inflection point where the lowering is changed to the raising, and the seating force lever 60 starts to abut against the spherical pressure bearing 77, so that the seating force lever 70 swings counterclockwise around the seating force lever fulcrum bearing 99 to the clockwise swing inflection point.

The pulling force of both hands is favorable to riding passerby and is about to rise up to step on, lets the body gravity directly act on the crank footboard 56, implements next action more efficiently.

In fig. 5, when the crank bearing 33 is located at the foremost position of the motion circle, the hand push rod 40 working horizontally meets the "crank distal dead center" of the "crank link mechanism", and the acting force of the hand push rod 40 at this position cannot rotate the crank spindle 54, i.e. the hand holding the direction bar 17 cannot drive the crank assembly 50 to do work by the hand force bar 80;

at the same time, the pedaling force acting on the crank pedal 56 is the highest from top to bottom with the rider's rising gravity, and the crank spindle 54 is driven to rotate counterclockwise about the center bearing 55 as a fulcrum, so that the crank assembly 50 has a crank shaft assembly with a crank shaft assembly having a crank shaft 54 with a crank shaft assembly having a crank shaft with a crank shaft assembly having a crank shaft with

The driving chain wheel rotates anticlockwise by taking the central bearing 55 as a fulcrum, and drives the rear wheel of the bicycle to roll forwards through the mechanical force transmission mechanism so as to drive the whole bicycle to move forwards together with the rider;

the spherical upper bearing 11 in the variable triangle takes the hand bearing 88 as a fulcrum and is at an inflection point changing from clockwise swing to anticlockwise swing; the steering transmission chain 10 takes the universal joint 22 as a fulcrum and is also at an inflection point of changing from clockwise swing to anticlockwise swing;

the distance between the spherical upper bearing 11 and the universal joint 22 starts to decrease from big to small;

the seat press bar 60 continues to be decelerated and tilted upward along with the crank spindle 54, the seat press bar 60 continues to push against the spherical press bearing 77, so that the seat press bar 70 continues to swing counterclockwise around the seat press bar support bearing 99, and the lifting seat 72 continues to be lifted.

In fig. 6, the crank pedal 56 is at the lowest point of the motion circle, and when encountering the "low dead point" of the conventional bicycle, the rider cannot drive the crank assembly 50 to rotate to do work by pedaling the crank pedal 56; the crank spindle 54 is at the highest position of the motion circle, so the sitting weight on the seat lever 70 cannot drive the crank assembly 50 to do work through the seat lever 60;

meanwhile, a rider can hold the direction cross bar 17 by two hands to continue to do forward pushing movement along the situation, force is transferred to the hand force bar piece 80 through the spherical upper bearing 11, the hand force bar piece 80 continues to swing anticlockwise by taking the hand bar bearing 88 as a fulcrum, the spherical hand bearing 44 on the hand force bar piece 80 transfers force to the hand push pull rod 40 to force the crank mandrel 54 to rotate anticlockwise to do work, the crank shaft assembly 50 is driven to rotate anticlockwise, the rear wheel of the bicycle is driven to roll forwards through the mechanical force transfer mechanism, and the whole bicycle is driven to move forwards together with the rider;

the spherical upper bearing 11 in the variable triangle continuously swings anticlockwise by taking the hand lever bearing 88 as a fulcrum; the steering transmission chain 10 continuously swings anticlockwise by taking the universal joint head 22 as a fulcrum;

the distance between the spherical upper bearing 11 and the universal joint 22 is continuously reduced from large to small;

the crank spindle 54 rotates counterclockwise with the seating force lever 60 at the inflection point where the lowering is changed to the raising, and the seating force lever 60 starts to drag the spherical pressure bearing 77, so that the seating force lever 70 swings clockwise around the seating force lever fulcrum bearing 99 to the counterclockwise swing inflection point.

The rider can push the knees to do work by pressing from the lifting seat 72 under the action of sitting posture gravity, and the next action can be performed more efficiently.

When needing to turn during riding, the two hands hold the direction cross bar 17 or turn left or right, the torsional force is transmitted to the steering execution component by the steering control component of the steering transmission chain 10 along the steering middle pipe 13, and the front fork wheel set 20 is controlled to turn;

the direction cross bar 17 does not influence the front and back swing motion of the hand bar 80 in the steering process, a spherical upper bearing 11 is arranged between the steering middle pipe 13 and the hand bar 80, the steering middle pipe 13 is fixed with the inner ring of the spherical upper bearing 11, the hand bar 80 is fixed with the outer ring of the spherical upper bearing 11, and the steering torsional force can not be transmitted to the hand bar 80; the push-pull acceleration can be realized while turning, and the arbitrary turning can also be realized while the push-pull acceleration is realized.

The invention adopts multi-force composite motion to do work during riding, and alternately does work between rising and pedaling and squatting sitting force to exert the waist and leg strength, thereby having the abdomen contracting exercise effect; the arm strength is exerted by alternately doing work between the pulling force of both hands and the pushing force of both arms, and the chest-expanding exercise effect is achieved; the multi-force compound drive acting movement posture mobilizes the muscle function of each part of the whole body, and the rider gives full play to the strength of the whole body of the human body to achieve the effect of whole body movement exercise.

In addition, "low dead point" and "high dead point" that conventional bicycle was eliminated in turn to both hands push, pull helping hand, has especially adopted hand lever 80 and seat power lever 70, and it is more powerful to be favorable to next action to get up to step on after realizing both hands pulling force acting, and the appearance of squatting that is favorable to next action after both hands pushing force acting is more smooth and easy, the order of acting: pedaling force, hand pushing force, squatting force and hand pulling force, four forces act in a coordinated manner, the four forces can compensate each other, less force can be exerted due to tired arms, more force can be exerted due to the tired legs, less force can be exerted due to the tired legs, more force can be exerted due to the tired arms and legs, and the rider can continuously ride the bicycle as long as the rider has the physical power that the two hands hold the direction cross bar 17 to get up and squat; after long-distance riding, although the whole body can sweat, local muscle fatigue and pain can not occur. Therefore, the invention is particularly suitable for riding in the outing at medium and long distances, and is environment-friendly and healthy.

The alternate push-pull boosting is combined with the standing-up pedaling and the squatting sitting posture to alternately move the whole body, so that the dead-point-free continuous movement work doing effect is realized, and the purpose of efficiently, quickly and durably riding is achieved.

Compared with the prior art and the 'universal joint steering hand and foot resultant force single-leg riding bicycle assembling method' of patent 2017102412103, the outstanding substantial distinguishing structural technical characteristics directly bring the following remarkable progress:

firstly, the structural design breaks through the conventional:

the lever opening seat 92 is positioned below the lever fulcrum 87, so that the distance between the upper bearing screw hole seat 81 and the lever fulcrum 87 is multiple times of the distance between the lever seat plate 84 and the lever fulcrum 87, and the pushing and pulling force of two hands is amplified multiple times;

the distance between the reverse seat lever support hole 79 and the seat lever branch pipe 97 is larger than the distance between the spherical pressure bearing 77 and the seat lever branch pipe 97, and the squatting sitting force is amplified to do work;

(II) particularly, if the stud spline shaft 27 is not arranged corresponding to the tube-breaking spline groove 61, the extrusion friction force of the convex cone expanding column 25 corresponding to the tube-breaking concave conical surface 62 is not enough to ensure that the convex cone expanding column 25 can drive the tube-breaking concave conical surface 62 to synchronously turn;

assuming that the lower cross shaft plate 24 is a concave connecting conical surface and the spline expansion tube 26 is provided with a convex conical surface, when the expansion tube nut 29 and the stud at the lower end of the stud spline shaft 27 are loosened for one circle without being separated, the concave and convex conical surfaces cannot be separated by lightly tapping the expansion tube nut 29, and the spline expansion tube 26 cannot be pulled downwards by pulling the lower hand, and the integral pipe wrestling expansion surface 78 in the state of expanding the inner hole wall of the outer through hole tube 21 cannot be pulled out by lightly tapping the expansion tube nut 29 before the concave and convex conical surfaces are separated, so that the disassembly fails.

Secondly, the assembly is smooth and convenient, the components are pre-assembled before being assembled, and the assembly of the whole frame, the steering component, the driving component and the conventional component is firstly finished in a high-speed way; each component is divided into groups in advance, and then the steering component, the driving component and the conventional component are assembled with each other and are buckled with each other in a ring manner.

Claims (5)

1. The assembly method of the forward resultant force riding vehicle comprises a steering transmission chain (10), a front fork wheel set (20), a rear fork wheel set (30), a vehicle body plate (90) and a driving module, wherein the driving module comprises a hand push pull rod (40), a crankshaft assembly (50), a seat force pressure rod (60), a seat force lever part (70) and a hand force lever part (80), the front end of the vehicle body plate (90) can be rotationally fixed with the front fork wheel set (20), an outer through hole pipe (21) is arranged at the upper end of the front fork wheel set (20), and the rear end of the vehicle body plate (90) is connected with the rear fork wheel set (30); the steering transmission chain (10) consists of a steering control component and a steering execution component, wherein the steering control component comprises a spherical upper bearing (11), a direction cross bar (17), a steering middle pipe (13) and a steering pipe sleeve (16); the steering execution component comprises a steering column (12), a cross shaft joint head (22), a convex cone expansion column (25) and a spline expansion tube (26), and the steering sleeve (16) is in axial sliding fit with the steering column (12); fixed on automobile body plate (90) are to guide rail (15) in pairs, hand power thick stick spare (80) upper half section sets up central line guide pulley (89), central line guide pulley (89) with roll to and fro between guide rail (15) in pairs, characterized by:

firstly, pre-packaging each component group:

in a vehicle body plate (90), outer rings of two split bearings (73) are pressed into two ends of an inner hole of a front fork hole seat (91) in advance;

secondly, in the steering transmission chain (10), a steering control component and a steering execution component are respectively split in advance;

in the manual lever element (80), an upper bearing outer stud (18) is matched with an upper bearing screw hole seat (81); an inner hole of a center line guide wheel (89) is rotatably matched and sleeved on the excircle of a guide wheel mandrel (86), and then excircles at two ends of the guide wheel mandrel (86) are fixed on a guide wheel support (85);

inner rings of the paired hand lever bearings (88) are respectively fastened on bearing sections on two sides of a hand lever fulcrum shaft (87);

in the pull rod (40), a hand bearing stud (43) is matched with a hand rod screw seat (41), a crank bearing (33) is placed in a hand rod curved hole (45), and an eccentric bearing (66) is placed in a press rod offset hole (46);

in the crankshaft assembly (50), firstly, the inner ring of a crank bearing (33) is fastened on a crank mandrel (54) in the middle, then paired crank mandrel holes (53) are fixed on the outer circular surfaces on two sides of the crank mandrel (54) in an interference fit manner, and in addition, the inner ring of a center bearing (55) is fixed on a crank mandrel (52) in an interference fit manner;

sixthly, in the seat force pressure rod (60), a pressure bearing stud (67) is matched with a pressure rod screw seat (69);

seventhly, in the seat force lever piece (70), a seat lever support bearing (99) is placed in a seat lever support hole (79), and a support pipe column of a lifting seat (72) is inserted into an inner hole of a seat lock pipe (71);

secondly, mutually assembling the steering components;

thirdly, mutually assembling the driving components;

and fourthly, assembling the conventional components with each other.

2. The method of assembling a positive resultant riding vehicle of claim 1, wherein:

in the steering transmission chain (10), a bearing inner hole of a cross axle upper plate (23) and a bearing inner hole of a cross axle lower plate (24) can be respectively fixed on a cross axle joint head (22) in a swinging mode; sleeving a spline expansion pipe (26) on a stud spline shaft (27) in advance, upwards aligning a pipe breaking concave conical surface (62) with a convex cone expansion column (25), and matching a pipe expansion nut (29) with a stud at the lower end of the stud spline shaft (27) but not screwing;

fixing a direction cross bar (17) on the excircle of the upper section of a steering middle pipe (13) through a staggered cross hole faucet part (the excircle of the upper section of the steering middle pipe (13) is fixed through a vertical hole on the staggered cross hole faucet part in the conventional technology, the excircle in the middle of the direction cross bar (17) is fixed through a horizontal hole on the staggered cross hole faucet part), the excircle of the lower end of a steering column (12) is pressed into a corresponding hole of a cross shaft upper plate (23) in an interference fit manner or is fixed through a welding part, and the upper end of the steering column (12) is inserted into a steering pipe sleeve (16) and can only slide axially;

a spline expanding tube (26) is sleeved on the stud spline shaft (27), and a tube expanding nut (29) is matched with the lower end of the stud spline shaft (27) in a threaded manner to enable a conical surface to be loosely attached between the spline expanding tube (26) and the convex cone expanding column (25).

3. The method of assembling a positive resultant riding vehicle of claim 1, wherein:

in the hand-push pull rod (40), a hand bearing nut (42) is firstly in screw fit at the root of a hand bearing stud (43), then the hand bearing stud (43) is matched with a hand rod screw seat (41) and is adjusted to a designed length position in a screw fit mode, and finally the hand bearing nut (42) is fastened to force the rear end face of the hand bearing nut (42) to be tightly attached to the front end face of the hand rod screw seat (41) to prevent looseness;

when the main body of the hand push pull rod (40) is formed by punching a plate, the crank bearing (33) is placed in the hand lever curved hole (45), and the eccentric bearing (66) is placed in the compression bar offset hole (46);

firstly, the rear end of the main body of the two symmetrical half-formed hand-push pull rod (40) is riveted by a hand rod rivet (47), and then the front end of the main body of the hand-push pull rod (40) is welded by a hand rod screw seat (41), so that the main body of the two symmetrical half-formed hand-push pull rod (40) is of an integral structure;

when the main body of the hand push pull rod (40) is integrally processed, the crank bearing (33) is placed in the hand rod curved hole (45), the eccentric bearing (66) is placed in the pressure rod offset hole (46), the two end faces of the hand rod curved hole (45) are forced to close up by a first flanging special tool to limit the axial displacement of the crank bearing (33), and the two end faces of the pressure rod offset hole (46) are forced to close up by a second flanging special tool to limit the axial displacement of the eccentric bearing (66).

4. The method of assembling a positive resultant riding vehicle of claim 1, wherein:

assembling the steering components:

the upper bearing screw hole seat (81) on the hand lever element (80) sequentially passes through the hand lever open seat (92) and the hand lever upper opening (98) from bottom to top, so that the outer ring of the hand lever bearing (88) is placed in the hand lever open seat (92), the assistant lever gland (31) is fixed on the end surface of the lower opening of the hand lever open seat (92) by four groups of frame cover bolts, and the outer ring of the hand lever bearing (88) is fixed in the hand lever open seat (92) by the assistant lever gland (31);

the center line guide wheels (89) on the guide wheel support (85) roll along the paired guide rails (15), the wheel seat fixing holes (35) are aligned to the guide wheel seat holes (82), the guide wheel bolt groups (83) sequentially pass through the guide wheel support (85) fixing holes and the guide wheel seat holes (82) and are fastened, the stacked center line guide wheels (89) are fixed on two sides of the manual lever piece (80), and the center line guide wheels (89) are kept in rolling fit on the inner sides of the paired guide rails (15);

secondly, sequentially pressing an inner ring of a split bearing (73) and a bearing space ring (74) into the root part of the excircle of the outer threaded through hole pipe (21), enabling the outer threaded through hole pipe (21) on the front fork wheel set (20) to penetrate through a front fork hole seat (91) from bottom to top, pressing an inner ring of the other split bearing (73) into the excircle of the outer threaded through hole pipe (21) and locating at the upper end of the bearing space ring (74), and matching a front fork nut (49) with the outer thread of the outer threaded through hole pipe (21) to limit the axial displacement of the inner ring of the split bearing (73) relative to the outer ring of the split bearing (73);

thirdly, the stud spline shaft (27) and the spline expanding tube (26) pass through an inner through hole of the outer through hole tube (21) from top to bottom, a tube expanding nut (29) is screwed up to be tightly matched with threads at the lower end of the stud spline shaft (27), a conical surface is formed between the tube severing concave conical surface (62) and the convex cone expanding column (25) for extrusion, and the outer circle of the tube severing expanding surface (78) is forced to expand to extrude the inner hole wall of the outer through hole tube (21) to form expansion fixed connection;

and (IV) sleeving a steering pipe sleeve (16) on the steering transmission chain (10) into the steering pipe column (12), inserting an upper bearing section (14) at the upper end of the steering middle pipe (13) into an inner hole of the spherical upper bearing (11) from bottom to top, and fastening an inner ring of the spherical upper bearing (11) on the upper bearing section (14) by an upper fastening screw.

5. The method of assembling a positive resultant riding vehicle of claim 1, wherein:

assembling the driving components:

firstly, aligning inner holes of seat lever support bearings (99) on seat force lever parts (70) on two sides with inner holes of seat lever branch pipes (97), sequentially inserting seat lever shaft columns (57) on two sides into the inner holes of the seat lever support bearings (99) and the inner holes of the seat lever branch pipes (97) in a pressure manner, and finally, fastening and matching two seat lever screws with screw holes on two sides of the seat lever shaft columns (57) respectively, fastening inner rings of the seat lever support bearings (99) on the seat lever shaft columns (57) and extruding end faces of the inner rings of the seat lever support bearings (99) on two end faces of the seat lever branch pipes (97);

secondly, a spherical pressing bearing (77) on a seat force pressing rod (60) sequentially penetrates through a crankshaft open seat (93) and a pressing rod upper opening (96) from bottom to top, an inner hole of the spherical pressing bearing (77) is aligned with an inner hole of a pressing rod hole seat (76), a pressing buckling pin (75) sequentially penetrates through the inner hole of the spherical pressing bearing (77) and the inner hole of the pressing rod hole seat (76), and two ends of the pressing buckling pin (75) are mutually screwed to fasten an inner ring of the spherical pressing bearing (77) on the end surface of the pressing rod hole seat (76);

the central bearing (55) corresponds to the crankshaft open seat (93), at least four groups of crank case bolts fasten the crankcase cover (32) on the lower end surface of the crankshaft open seat (93), the crankcase cover (32) fixes the outer ring of the central bearing (55) in the crankshaft open seat (93), the two ends of the eccentric buckling pin (64) are screwed mutually, and the inner ring of the eccentric bearing (66) is fastened on the end surface of the pressure rod fork seat (65);

and thirdly, the spherical hand bearing (44) at the front end of the hand push pull rod (40) is inserted into the hand rod plate seat (84), the hand buckling pin (48) sequentially penetrates through the hand rod plate seat (84) and the inner hole of the spherical hand bearing (44), and the inner ring of the spherical hand bearing (44) is fastened in the hand rod plate seat (84) by the hand buckling pin (48).

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