WO2011022926A1

WO2011022926A1 - Rapid exercise bicycle or tricycle driven by hand and foot

Info

Publication number: WO2011022926A1
Application number: PCT/CN2010/000872
Authority: WO
Inventors: 姜仁滨; 王宛珏; 王晓东; 任渊
Original assignee: Jiang Renbin; Wang Wanjue; Wang Xiaodong; Ren Yuan
Priority date: 2009-08-26
Filing date: 2010-06-17
Publication date: 2011-03-03

Abstract

A rapid exercise bicycle or tricycle driven by hand and foot includes a front wheel (1), a rear wheel (2), a frame (3), a seat (27), a brake (4), foot pedals (5), a drive gear (6) and a drive chain (7). The fork rod (16) on the front wheel (1) and the front wheel pivot shaft (20) are provided with a set of hand-driving gear (8) or gear box (9) driven by hand or hand push-pull gear frame (12) and its respective drive gear (21,13) and drive chain (11, 14). The rider drives the foot pedals to provide the power to the rear wheel for moving forward, and at the same time rotates the hand-driving gear or gear box driven by hand or pushes and pulls the gear frame to provide the power to the front wheel for moving forward. The exercise bicycle or tricycle can exercise not only the feet but also the arms and waist, and run rapidly. The rapid exercise tricycle driven by hand and foot with low seat and running stablly is especially suitable for the old.

Description

Manual pedal fast exercise bike and tricycle

The invention relates to the field of mechanical components mounted on the fork and the rotating shaft of the bicycle and the front wheel of the tricycle, in particular to a manual pedaling fast exercise bicycle and a tricycle. Background technique

It is well known that the serious drawbacks of today's bicycles and tricycles are: only the foot pedal and the larger transmission gear fixedly connected to it are installed under the seat, and the smaller running gear is mounted on the rear wheel shaft. A fixed transmission gear is mounted between the fixed transmission gear and the smaller running gear mounted on the rear wheel shaft. The passenger can only use the pedals to step on the pedals to obtain the thrust of the rear wheels. The handles on the wheels and forks only play the role of balance and steering. It is impossible to obtain thrust on the front wheels, so that the maximum speed is not large enough. At the same time, the passengers' arms and waist are not used, and the passengers are riding. When the body can't get a full-scale exercise, the ride can't play a good role in fitness. Summary of the invention

The object of the present invention is to overcome the serious drawbacks of the above-mentioned bicycles and tricycles, and to provide a series of both the arms and the waist of the occupant can be used to make the occupants fully integrated in the body when riding. A manual pedal fast exercise bike and a tricycle that can exercise and play a good role in fitness, while at the same time improving the maximum speed of the car.

The manual pedal fast exercise bicycle and the tricycle have the advantages of being almost fast in the automobile, and overcome the shortcomings of being unable to exercise the body by the automobile. The bicycle and the tricycle have simple structure, low cost, simple operation, energy saving and environmental protection, and can exercise the body. The advantages of the same, overcome the shortcomings of ordinary bicycles and tricycles, the speed is not big enough, can not exercise arms and waist. This kind of manual pedaling fast fitness bike and tricycle are very suitable as a kind of urban transportation. The stable manual pedal with low sitting position is especially suitable for the elderly.

The technical problems to be solved by the manual pedal fast exercise bicycle and the tricycle of the present invention are:

1. In order to increase the maximum speed of the car, it is necessary to make the bicycle or tricycle get more thrust. How to get more thrust of the bicycle or tricycle without installing the engine or electric motor is the first technology to be solved by the present invention. problem. 2. How to make the occupants' arms and waists use the same strength as the legs, so that the occupants can get a full workout when riding, so that the ride can work well. The role of the present invention is a second technical problem that needs to be solved.

3. How to make the structure simple, easy to operate, low in cost, safe and reliable, energy saving and environmental protection is the third technical problem that the invention needs to solve. Technical solutions

A manual pedaling exercise bike and tricycle (hereinafter referred to as "fitness bike") are used to achieve fast fitness rides. The exercise bike consists of front wheel (1), rear wheel (2), frame (3), brake (4), foot pedal (5) and its transmission gear (6) and transmission chain (7), hand-rotating gear ( 8) or the manual gearbox (9) and its transmission gear (10) and drive chain (11), or the longer hand push-pull carrier (12) and its transmission gear (13) and drive chain. (14) , characterized by the front wheel. (1) The front of the frame (3) obliquely above the front end of the fixed bearing (15) inclined 50° or 60°, the freely rotatable 67 cm or 77 PCT fork The upper end of the rod (16) is fixedly mounted with a vertically upward 30 cm or 25 cm long short strut (17), and a horizontal fixed bearing (18) is mounted on the upper end of the short strut (17). A large hand-rotating gear (8) or a hand-turn gear box (9) is fixedly mounted on the rotating shaft (19) in the fixed bearing (18), and one end of the front wheel rotating shaft (20) is mounted with a normal bicycle. A transmission gear (2) with a same size and the same structure as the transmission gear (2) installed at one end of the rotary shaft, in a larger manual gear (8) or a manual gearbox (9) ) is connected to a small transmission chain (11) between the smaller transmission gears (21) mounted at one end of the front wheel shaft (20), or to the rear of the front end of the frame (3) obliquely above the front wheel (1) The fixed bearing (15) of 50° or 60° is freely rotatable. The length of the fork (16) at the intersection of the fork (16) is fixed at both ends of the shaft (23) in the horizontal fixed bearing (22). a push-pull carrier (12), a transmission gear (13) under the longer hand-pushing carriage (12), and a transmission mounted at one end of the front wheel shaft (20) and one end of the ordinary bicycle rear axle The smaller gears (21) of the same size and structure of the gears (2Γ) are articulated or connected by a ring drive chain (14), the front wheel (1) is a wheel, the rear wheel (2) is a wheel, or The two wheels are divided into: (1), hand reverse pedal fast exercise bike (hereinafter referred to as "A2 type exercise bike"), (2), hand reverse pedal fast fitness tricycle (hereinafter referred to as "A3" Exercise bike', (3), shun reverse pedal fast fitness bike (hereinafter referred to as "B2 exercise bike") (4), hand-foot fast reversal cis Speed fitness tricycle (hereinafter referred to as "B3 type exercise bike"), (5), hand pull pedal fast fitness bicycle (hereinafter referred to as "C2 type exercise bike"), (6), hand pull pedal fast fitness tricycle below Referred to as "C3 type exercise bike"), (7), push forward and pull the pedal fast fitness bicycle (hereinafter referred to as "D2 type body car"), (8), push forward and pull the pedal fast fitness tricycle (hereinafter referred to as "D3 exercise bike").

The front end of the frame (3) of the front side of the frame (3) of the A2 type exercise vehicle (1) is inclined by 50° and the length of the fixed bearing (15) of 14 cm is arbitrarily rotated. 16) The upper end is fixedly mounted with a vertical upward 30 cm long struts (17). At the upper end of the short struts (17) is mounted a horizontal fixed bearing (18) with a length of 3 cm. A thin long struts (17') are mounted between the bearing (18) and the fork of the fork (16) with a length of 67 cm, and a 30 cm long shaft in the horizontal fixed bearing (18) 19) A hand-rotating gear (8) with a radius of 10 cm is fixedly mounted at one end of the fixed bearing, and a pair of parallel reverse lengths are fixedly mounted at both ends of the rotating shaft (19) in the horizontal fixed bearing (18). A 20 cm short shank (24) with a vertical shaft and a short handle (24) are fitted with a handle of a plastic tube with a length of ίθ cm perpendicular or parallel to the short shank (24). 25), the larger hand-turn gear (8) center position is 23 cm in front of the seat At a height of 15 cm, a small transmission gear (21) of the same size and structure is mounted on the front wheel shaft (the end of the 20^ is mounted with a transmission gear (2Γ) mounted at one end of the rear wheel of the ordinary bicycle. Larger rotating gear (8) fixed to the shaft (19) in the horizontal fixed bearing (18) at the upper end of the rod (17) and a smaller transmission gear mounted at one end of the front wheel (1) shaft (20) (21 There is an annular drive chain (11) connected between the horizontal fixed bearing (18) at the upper end of the short strut (16) and the rotating shaft of the front wheel, and a flat elongated chain case (26) made of thin iron is arranged. The front wheel (1) is a wheel, the rear wheel (2) is also a wheel, and the seat (27) in the upper middle of the frame (3) is a small plastic sitting 80 cm from the ground, the center of the hand-turn gear (8) The position of the horizontal fixed bearing (18) is 23 cm in front and 15 cm in height.

When the occupant steps on the pedal with both feet to obtain the forward thrust of the rear wheel, holding the handle with the plastic tube (25) with both hands, and turning the hand-rotating gear (8) counterclockwise, The front wheel gains forward thrust, which increases the speed of the car, and the rider's limbs can also be exercised at the same time. However, when the hand-rotating gear (8) is turned clockwise with both hands, the front wheel cannot be pushed forward.

The front wheel of the A3 exercise bike (1) is inclined upward by 60° at the front end of the frame (3) The upper end of the fork (16) with a length of 77 cm which can be freely rotated in a fixed bearing (15) of 22 cm in length, fixedly mounted with a vertically upwardly short struts (17) of 25 cm in length, in a short A horizontal fixed bearing (18) with a length of 3 cm is mounted on the upper end of the strut (17), and a thinner portion is mounted between the horizontal fixed bearing (18) and the fork of the fork rod (16) having a length of 77 cm. Long strut (17'), fixed to the end of the fixed bearing on the shaft (19) with a length of 30 cm in the fixed bearing (18). A hand-rotary gear (8) with a radius of 10 cm is fixed. The shaft (19) in the fixed bearing (18) is fixedly mounted at both ends with a pair of parallel reversed lengths of 20 cm and a short shank (24) perpendicular to the shaft. The ends of the two short shanks (24) are fitted with a 10 cm in length or parallel to the short shank (24) with a plastic tube handle (25), the larger hand gear (8) center position 35 cm in front of the seat (27), 30 cm high , at the end of the front wheel (1) shaft (20) is installed with a normal bicycle rear wheel shaft Drive gear (2Γ) mounted at one end Smaller gears (21) of the same size and construction, larger hands fixed on the shaft (19) in the horizontal fixed bearing (18) at the upper end of the short strut (16) The rotary gear (8) is connected to a smaller transmission gear (21) mounted at one end of the front wheel (1) shaft (20) with an endless drive chain (11), and a horizontal fixed bearing at the upper end of the short strut (17)' (18) Between the shaft (20) of the front wheel (1) is equipped with an elongated chain case (26) made of thin iron, the front wheel (1) is a wheel, and the rear wheel (2) is two Wheel, seat (27) is a small plastic chair with a small backrest, small armrest and legless width of 40 cm and 30 cm from the ground. The horizontal fixed bearing of the center of the hand-gear (S) (18) The position is 35 cm in front and 30 cm in height. '

While the occupant is stepping on the pedal with both feet to obtain the forward thrust of the rear wheel, hold the handle with the plastic tube (25) with both hands and turn the hand-rotating gear (8) counterclockwise. The front wheel also gains forward thrust, thereby increasing the speed of the vehicle, and the rider's limbs can also be exercised at the same time, because the rear wheel (2) is two wheels, the seat position (27) is low, and the car line is stable. So it is especially suitable for the elderly to ride. However, when the hand-rotating gear (8) is turned clockwise with both hands, the front wheel cannot be thrust forward.

Front end of the B2 type exercise bike (1) The upper end of the fork rod of the length of the fixed length bearing (15) of the front side of the obliquely inclined frame (3) which is inclined by 50° and inclined by 50° at the front end of the front side of the fixed bearing (15) 16), fixedly mounted with a vertical upward 30 cm short struts (17), and a short fixed struts (17) mounted with a 3 cm horizontal fixed bearing (18>, in solid A 30 cm long shaft (19) in the fixed bearing (18) is fixedly mounted on both sides of the fixed bearing (18) with a large hand-turn gearbox (9). The hand-turn gearbox (9) is a Between the two thicker side walls, there are two parallel horizontal rotating shafts, which are upper and lower, and have a semicircular upper and lower semi-circular thickness of 17 cm. The upper shaft passes through the brace of the hand-turn gear box (9). a fixed bearing on the upper side of the horizontal fixed bearing (18) and the manual gearbox (9), and a fixed bearing on the outer surface of the lower end of the manual gearbox (9), also at the fork of the fork a fixed bearing and a yoke fixed to the outer surface of the lower end of the manual gearbox (9) by a short bolt at a fixed bearing, a short struts (17') having a small round hole at each end 16) In the fixed bearing at the bifurcation, two transmission gears with a radius of 10 cm are fixedly mounted on the rotating shafts (19) on both sides of the horizontal fixed bearing (18) in the manual gearbox (9): The gear (S), the right one is the reverse gear (N), and the hand gear box is extended (9) The outer shaft (19) is fixedly mounted at both ends with a pair of parallel reversed short shanks (24) with a length of 20 cm and a vertical shaft (24). The ends of the two short shanks (24) are each mounted with a length of ί θ cm. The handle (25) with a plastic tube perpendicular or parallel to the short shank, three adjacent transmission gears are fixed on the lower shaft (19'): the two transmission gears on the left and the right have a radius of S cm, in the middle The transmission gear has a radius of 5 cm, the left transmission gear and the running gear (S) on the upper shaft (19) are articulated, the middle smaller transmission gear and the reverse gear on the upper shaft (19) (Ν Connected by a drive chain (1Γ), the right drive gear is the same size and identical in structure to the drive gear (2) mounted on one end of the front wheel shaft and the drive gear (2) mounted on one end of the normal bicycle rear wheel shaft. The smaller transmission gear (21) is connected, and a long and thin metal chain case (26) is attached between the outer surface of the lower end of the manual gearbox (9) and the rotating shaft of the front wheel. ) is a wheel, the rear car (2) Also a wheel, the seat (3) in the upper middle of the frame (27) is a small plastic seat 80 cm from the ground, the position of the horizontal fixed bearing (18) in the hand-turn gearbox (9) 30 cm in front and 15 cm in height.

While the occupant is stepping on the pedal with both feet to obtain the forward thrust of the rear wheel, hold the handle with the plastic tube (25) with both hands and turn the manual gearbox clockwise or counterclockwise (9) In the horizontal fixed bearing (18), the rotating shaft (19) also gives the front wheel a forward thrust, and the rider's limbs can also be better trained at the same time.

The front end of the front frame of the B3 type exercise bicycle is inclined at 60° and the front end of the fork is inclined by 60°. The upper end of the fork is 77 cm long and can be freely rotated. a short 25 mm long struts (17), and a 3 cm long horizontal bearing (18) mounted on the upper end of the short struts (17). The length in the fixed bearing (18) is A 30 cm shaft (19) is fixedly mounted on both sides of the fixed bearing (18) with a larger hand-turn gearbox (9). The hand-turn gearbox (9) is mounted between the thicker side walls. a flat metal box with a thickness of 17 cm and a top and bottom, a semi-circular upper and lower semi-circular parallel shaft, the upper shaft passing through the horizontal fixed bearing (18) at the upper end of the strut in the hand-turn gearbox (9) and Hand-turn gearbox

(9) Fixed bearings on the two side walls, a fixed bearing is mounted on the outer surface of the lower end of the manual gearbox (9), and a fixed bearing is also mounted on the fork of the fork, one small circle at each end The short ends of the short struts (17') of the hole are respectively fixed by a short bolt to the fixed bearing on the outer surface of the lower end of the manual gearbox (9) and the fixed bearing at the fork of the fork (16). The upper horizontal fixed bearing (18) in the gearbox (9) is fixedly mounted with two transmission gears with a radius of 10 cm on one side of the shaft (19): one of which is the driven gear (S) and the other is the reverse Gear (N), the shaft (19) extending out of the gearbox (9) is fixedly mounted at both ends with a pair of parallel reversed short shanks (24) with a length of 20 cm and two short shanks (24). The rear end is fitted with a 10 cm long or parallel handle with a plastic tube (25), and the lower shaft (19') is fixed with three adjacent transmission gears: The two transmission gears have a radius of S cm, and the middle transmission gear Diameter of 5 cm, the left drive gear shaft and above

(19) The upper gear (S) is articulated, the middle smaller gear and the reverse gear (N) on the upper shaft (19) are connected by the drive chain (1 Γ ), and the right drive gear is passed The transmission chain (11) is connected to a small transmission gear (21) of the same size and the same structure as the transmission gear (2Γ) installed at one end of the front wheel shaft and connected to one end of the ordinary bicycle rear wheel shaft. (9) Between the fixed bearing at the lower end and the rotating shaft of the front wheel, there is a long and long chain case (26) made of thin iron. The front wheel (1) is a wheel and the rear wheel (2) is two wheels. Seat position (27) is a small plastic chair with a small backrest, small armrest and legless width of 40 cm long and '30 cm from the ground. The horizontal fixed bearing in the hand-turn gearbox (9) (18) The position is 31 cm in front and 30 cm in height.

While the occupant is stepping on the pedal with both feet and the rear wheel is getting the forward thrust, hold the handle with the plastic tube (25) with both hands and turn the manual gearbox clockwise or counterclockwise (9) In the horizontal fixed bearing (18), the rotating shaft (19) also gives the front wheel a forward thrust, and the rider's limbs can also be better trained at the same time, because the rear wheel (2) Is two cars The wheel, the seat (27) is low, and the car is very stable, so it is especially suitable for the elderly.

The front wheel of the C2 exercise bike (1) has a length of 61 cm on the upper side of the fork (15). The upper part has a smooth shaft with a length of Π cm (16). The length of the Chuanchuan is inclined backward by 50° at the front end of the frame. In the 15 cm fixed bearing (15), the fork (16) has a horizontal fixed bearing (22) with a length of 19 cm, and the lower part of the fork (16) has a strut (16') on the left side of the front wheel. There are two struts (16") on the right side of the front wheel. The lower ends of the left and right struts have a horizontal fixed bearing. The horizontal fixed bearing at the center of the front wheel and the horizontal fixed bearing at the lower end of the left and right struts of the fork are replaced by a A horizontally smooth shaft (20) of 25 cm in length, in which the horizontal smoothing shaft (23) at the fork of the fork is abutted against the horizontal fixed bearing (22). Both sides are provided with a horizontal smoothing shaft ( 23) Rotating down the long hand push-pull carrier (12) to the right of the front wheel, the push-pull carrier (12) and the horizontal smooth shaft (23) form a rectangular steel with a height of 25 cm and a width of 23 cm. Rack (12), rectangular steel frame (12) The middle upper part is fixedly connected with a 40 cm long steel pipe (12') in the same direction as the smooth shaft (16) of the upper part of the fork (15). The upper end of the steel pipe (12') is fixedly welded. Root 50 cm long and frame (3) vertical horizontal steel pipe (12''), horizontal steel pipe (12'') is covered with a 10 cm long plastic casing (12'''), rectangular steel The lower right corner of the frame (12) is fixedly welded with a radius of 15 cm and a quarter-disc gear (13) sandwiched between the two struts (16'') on the right side of the front wheel, two on the right side of the front wheel. There is a horizontal fixed bearing in the middle of the root strut, a horizontal smooth rotating shaft (23') is installed in the two horizontal fixed bearings, two gears are fixed on the horizontal smooth rotating shaft (23'), and a smaller gear on the right side. It is connected with the quarter-disc gear (13), and the larger gear on the left side and the transmission gear (2Γ) installed at one end of the front wheel shaft are the same size and structure. a small transmission gear (21) passes through a ring transmission The strips (14) are connected, and a forwardly inclined rectangular retainer (28) is fixed in front of the fixed bearing (15) which is inclined backward by 50° at the front end of the frame (3), and a horizontal fixed bearing on the right side of the front wheel (22) ) and the horizontal smooth shaft (20) is fixed with a flat long flat-topped and removable gear chain case (26) made of thin iron, the front wheel U) is a wheel, the rear wheel (2) ) is also a wheel, seat C27) is a small plastic sitting 80 cm from the ground, horizontal steel pipe (12'') is located 10 cm in front of the seat, 40 cm high.

While the occupant is stepping on the pedal with both feet to get the forward thrust of the rear wheel, hold the handle with the plastic tube (25) with both hands and pull the horizontal steel above the hand push-pull carrier (12). When the tube (12''] is used, the front wheel can also obtain forward thrust, thereby increasing the speed of the vehicle, and the rider's limbs can also be exercised at the same time, but when pushing the horizontal steel pipe (12'') forward, The front wheel cannot be given forward thrust.

The front side of the front wheel of the C3 exercise vehicle (1) is a 61 cm long smooth shaft (16) with a length of 61 cm on the upper part of the fork (15). The length of the front end of the frame is inclined by 60° at the front end of the frame. In the 15 cm fixed bearing (15), the fork rod (16) has a horizontal fixed bearing (22) with a length of 19 cm. The lower part of the fork (16) has a strut on the left side of the front wheel (16' ), there are two struts (16'') on the right side of the front wheel, and a horizontal fixed bearing at the lower end of the left and right struts. The horizontal fixed bearing at the center of the front wheel and the horizontal fixed bearing at the lower end of the left and right struts of the fork are A horizontally smooth shaft (20) with a length of 25 cm. The horizontal smooth shaft (23) with a length of -28 cm at the fork of the fork is mounted on both sides of the horizontal fixed bearing (22). A long hand-pushing carrier (12) that can be rotated to the right of the front wheel by a smooth horizontal shaft (23), the middle of the push-pull carrier (12) and the horizontal smooth shaft (23) form a height of 25 cm. , rectangular steel frame (12) with a width of 23 cm, rectangular steel frame (12 The upper middle fixed welding is a 40 cm long steel pipe (12') in the same direction as the smooth shaft (16) with a length of 17 cm on the upper part of the fork (15). The upper end of the steel pipe (12') is fixedly connected. There is a 50 cm long horizontal frame (12" with the frame (3) vertical, and a 10 cm long plastic sleeve (12"') at both ends of the horizontal steel tube (12''), rectangular steel frame The lower right corner of (12) is fixedly welded with a radius of 15 cm, a quarter-disc gear (13) sandwiched between the two struts (16'') on the right side of the front wheel, and two on the right side of the front wheel. There is a horizontal fixed bearing in the middle of the pole, a horizontal smooth shaft (23') in the two horizontal fixed bearings, two gears on the horizontal smooth shaft (23'), and a smaller gear on the right side. (13) A toothed joint with a quarter-disc gear (13), a larger gear (13) on the left side and a transmission gear (2) mounted at one end of the front wheel shaft and mounted on one end of the ordinary bicycle rear wheel shaft A small transmission gear (21) of the same size and the same structure passes through a circular drive chain (14) In addition, a slanted rectangular retainer (28) is fixed in front of the fixed bearing (15) which is inclined backward by 50° at the front end of the frame (3), a horizontal fixed bearing (22) on the right side of the front wheel and a horizontally smooth shaft (20) Fixedly fitted with a flat long, flat-topped and removable gear chain case (26) made of thin iron, the front wheel (1) is a wheel and the rear wheel (2) is two Wheel, seat (27) is a small plastic with a small backrest, small armrest and legless width of 40 cm and 30 cm from the ground. The seat, horizontal steel tube (12'') is located 10 cm in front of the seat and 50 cm high.

While the occupant is pedaling with both feet to make the rear wheel get the forward thrust, hold the handle with the plastic tube (25) with both hands and pull the horizontal steel tube above the hand push-pull carrier (12). (12''), the front wheel can also get forward thrust, thus increasing the speed, the rider's limbs can also be exercised at the same time, but push forward the plastic on the horizontal steel pipe (12'') The casing (12'") does not allow the front wheel to gain forward thrust. Because the rear wheel (2) is two wheels, the seat (27) is low, and the car is stable, it is especially suitable for the elderly.

The front side of the fork (1) of the D2 type exercise vehicle has a smooth shaft (16) with a length of 17 cm on the upper side of the fork (16) and a rearward tilt of the front end of the frame (3). In the fixed bearing (15) with a length of 15 cm, the fork has a horizontal fixed bearing with a length of 19 cm, and the lower part of the fork (16) has two struts (16') on the left side of the front wheel. There are also two struts (16'') on the right side of the front wheel. The lower ends of the four left and right struts have a horizontal fixed bearing. The horizontal fixed bearing at the center of the front wheel and the horizontal fixed bearing at the lower end of the left and right four struts of the fork are A horizontally smooth shaft (20) with a length of 31 cm. The horizontal smooth shaft (23) with a length of 31 cm at the fork of the fork (16) is mounted on both sides of the fixed bearing (22). A long hand-pushing carriage that spans both sides of the front wheel with a smooth horizontal shaft (23)

(12), the middle of the push-pull carrier (12) and the horizontal smooth shaft (23) with a length of 31 cm form a rectangular steel frame (12) with a height of 25 cm and a width of 23 cm, rectangular steel frame (12) The upper middle fixed welding has a smooth shaft (16) with a length of 17 cm on the upper part of the fork (16). The length of the steel tube (12') is 40 cm long in the same direction. The upper end of the steel tube (12') is fixedly welded. Root 50 cm long and frame (3) vertical horizontal steel pipe (12''), horizontal steel pipe ends with a 10 cm long plastic casing (12'"), rectangular steel frame (12) right The lower corner and the lower left corner are respectively fixed with a radius of 15 cm and a quarter-disc gear (13) sandwiched between two struts (16', 16") on the left and right sides of the front wheel, on the right side of the front wheel The two struts (16'') have a horizontal fixed bearing in the middle. There is a horizontal smooth shaft (23'') in the two horizontal fixed bearings and two gears on the horizontal smooth shaft (23''). 13): A smaller gear (13) on the right side and a quarter-disc gear (13) are articulated. A larger fixed gear (13) and a smaller transmission gear (21) of the same size and the same structure as the transmission gear (21') installed at one end of the front wheel shaft Connected by a ring drive chain (14), two struts (16') on the left side of the front wheel There is a horizontal fixed bearing in the middle, and a horizontal smooth shaft in the two horizontal fixed bearings.

(23'), on the horizontal smooth shaft (23') is equipped with a top and left quarter disc gear (13) with a 10 cm radius of transmission gear (13), transmission gear ( 13) The lower edge and one end of the front wheel shaft are mounted with a transmission gear (2Γ) mounted on one end of the common bicycle rear wheel shaft. The smaller transmission gears (21) of the same size and structure are articulated, in the frame ( 3) The front end of the fixed bearing (15) inclined 50° backward is fixed with a forwardly inclined rectangular retaining frame (28), the horizontal fixed bearing (22) on the left and right sides of the front wheel and the horizontal smooth shaft at the center of the front wheel. (20) Fixedly fitted with a flat long, flat-topped and removable gear chain case (26) made of thin iron. The front wheel (1) is a wheel and the rear wheel (2) is also a wheel. , seat (27) is a small plastic sitting 80 cm from the ground, horizontal steel pipe

The position of ( 12' ') is 10 cm in front and 40 cm in height.

While the occupant is stepping on the pedal with both feet to obtain the forward thrust of the rear wheel, hold the handle (25) with the plastic tube with both hands and pull back or push the hand push-pull carrier (12) When the horizontal steel pipe (12") above, the front wheel can also obtain the forward thrust, so that the vehicle speed can be increased more, and the rider's limbs can also be better trained at the same time.

The front wheel of the D3 exercise bike (1) The fork rod (16) with a length of 61 cm obliquely above the upper part of the smooth shaft (16) with a length of 17 cm. The Chuanchuan is inclined backward by 60° at the front end of the frame (3). In a fixed bearing with a length of 15 cm, the fork (16) has a horizontal fixed bearing (22) with a length of 19 cm, and the lower part of the fork (16) has two struts on the left side of the front wheel (16' ), there are also two struts (16'') on the right side of the front wheel. The lower ends of the four left and right struts have a horizontal fixed bearing. The horizontal fixed bearing at the center of the front wheel and the lower ends of the left and right four struts of the fork are fixed horizontally. The bearing is held by a horizontally smooth shaft (20) with a length of 31 cm. The horizontal smooth bearing (22) on the horizontal smooth shaft (23) with a length of 31 cm at the fork of the fork (16) Installed on both sides with a long hand-pushing carrier (12) that spans both sides of the front wheel for horizontal smoothing (23) rotation, the middle of the push-pull carrier (12) and the horizontal smooth shaft (23) form a height of 25 Centimeter, rectangular steel frame with a width of 23 cm (12), rectangular steel frame (12) The upper middle fixed welding has a steel pipe (12') with a length of 17 cm and a smooth shaft with a length of 17 cm in the upper direction of the fork. The upper end of the steel pipe (12') is fixed to a 50 cm long. And the frame (3) vertical horizontal steel pipe (12''), the horizontal steel pipe is covered with a 10 cm long plastic casing (12'"), the lower right corner and the lower left corner of the rectangular steel frame (12) Fixed welding Attached is a quarter-circular gear (13) with a radius of 15 cm sandwiched between two struts (16', 16") on the left and right sides of the front wheel, and two struts on the right side of the front wheel ( 16'') There is a horizontal fixed bearing in the middle. There is a horizontal smooth shaft (23'') in the two horizontal fixed bearings and two gears (13) on the horizontal smooth shaft (23 ''): The small transmission gear ( 13 ) and the quarter-disc gear (B) are coupled to each other, a large transmission gear (13) on the left side and a common rear wheel axle mounted on one end of the front wheel shaft. The transmission gears (2Γ) installed at one end are of the same size and the same structure. The smaller transmission gears (21) are connected by a ring-shaped transmission chain (14). One of the two poles on the left side of the front wheel is fixed horizontally. Bearing, in a horizontal fixed bearing, there is a horizontal smooth shaft (23'), smooth horizontal shaft

(23') is equipped with a top and left quarter-disc gear (13) with a 10 cm radius drive gear (13), drive gear (13) lower edge and front wheel shaft The end of the frame is equipped with a small transmission gear (21) of the same size and the same structure as the transmission gear (2Γ) installed at one end of the rear wheel of the ordinary bicycle. The gear is connected at the front end of the frame (3) by 50°. The front of the fixed bearing (15) is fixed with a forwardly inclined rectangular retaining frame (28), and a flat fixed bearing (22) on the left and right sides of the front wheel and a horizontal smooth rotating shaft (20) in the center of the front wheel are fixedly mounted with a flat The long top made of thin iron is a flat-topped and removable gear chain case (28), the front wheel (1) is a wheel, the rear wheel (2) is two wheels, and the seat is 55 degrees above the ground. A small plastic chair with a small backrest, small armrests and no legs, 40 cm wide and 30 cm long. The horizontal steel tube (12'') is located 10 cm in front and 50 cm high in the seat.

While the occupant is stepping on the pedal with both feet to obtain the forward thrust of the rear wheel, hold the handle (25) with the plastic tube with both hands and pull back or push the hand push-pull carrier (12) When the horizontal steel pipe (12'') above, the front wheel can also obtain the forward thrust, thereby increasing the speed more, and the rider's limbs can also get better exercise at the same time. Because the rear wheel (2) is two wheels, the seat position (27) is low, and the car line is stable, it is especially suitable for the elderly.

The running gear in the manual gearbox (9) installed in the B2 exercise bike and B3 exercise bike

(S) is a transmission gear of the same configuration with a transmission gear (2Γ) installed at one end of the rear wheel axle of a normal bicycle, and a reverse gear (N) installed in the crank gearbox (9) A disc (29) fixedly coupled to the shaft (19), a ring having an outer radius of 10 cm which is rotated around the disc (29) with a gear on the outer edge of the outer edge of the disc (29)

(30) Composition, with a number of equally spaced grooves on the outer edge of the disc (29) and the inner edge of the ring (29) Slot (31, 3 Γ ), there is a small stop (32) in each groove (M) on the outer edge of the disc (29), and the small stop (32) can completely sink into the groove (31) Middle, and can rotate around the right end of the shaft (33), the small head (32) has a small hook (34) in the middle, a ring of elastic thin steel wire (35) through the small hook (34), will The rotatable left end of the small stop (32)' pushes out the groove, sinks into the groove of the inner edge of the ring, and is in close sliding contact with the groove (3). The main point of the above technical solution is to install a set of hand-rotating gears or hand-turning gearboxes and their transmission gears and transmission chains on the forks and shafts of the front wheels of bicycles and tricycles, or to install a set of hand-pushing gear carriers and their transmissions. Gears and drive chains, when the rider uses his arms to turn the hand-turn gear or the hand-turn gearbox, or push-pull the push-pull carrier, the front wheel is also the same as the rear wheel, and the forward thrust can be obtained, thus making the car The speed is increased, and the rider's limbs and waist are well trained to achieve the goal of fast fitness. .

The beneficial effects of the present invention are as follows:

1. The front wheel is also the same as the rear wheel, and the forward thrust can be obtained.

The rider's limbs and waist are well trained to achieve fast cycling.

3 Simple structure, simple operation, low cost, safe and reliable, energy saving and environmental protection, easy to popularize and use. DRAWINGS

Figure 1. Front view of the front of the A2 exercise bike

Figure 2. Side view of the A2 fitness

Figure 3. Front view of the front of the A3 exercise bike

Figure 4. Side view of the A3 exercise bike

Figure 5. Front view of the front of the B2 exercise bike

Figure 6, B2 type fitness side view

Figure 7, front view of the B3 exercise bike front

Figure 8, B3 exercise bike side view

Figure 9. Front view of the front of the C2 exercise bike: Figure 10, C2 type fitness side view

Figure 11, front view of the front of the C3 exercise bike

Figure 12, side view of the C3 exercise bike

Figure 13, front view of the D2 exercise bike front

Figure 14, D2 type fitness side view

Figure 15, front view of the front of the D3 exercise bike

Figure 16, D3 fitness side view

Figure 17, side view of the gear

Figure 18. Side view of the reverse gear

1 front wheel, 2 - rear wheel, 3 - frame, 4 brakes, 5 - foot pedal, 6 - transmission gear, 7 - transmission chain, 8 - hand gear, 9 one hand gear box, 10 - transmission Gear, 11-ring drive chain, 12-hand crank frame, 13-transmission gear, - drive chain, 15-frame (3) front end is a fixed bearing inclined backwards 60°, 16, 16', 16" - Fork lever, 17 - Short strut, 18 - Horizontal fixed bearing, 19 one shaft, 20 - Front wheel shaft, 21 - Front wheel shaft (20) - Small drive gear for end mounting, 21, One gear, 22 - horizontal fixed bearing, 23, 23 ', 23" - shaft, 24 - short handle, 25 - handle, 26 - gear chain box, 27 - seat, .28 - rectangular frame, 29 - disc, 30 - can be wound Ring (29) rotating ring, 31, 3 Γ a groove, 32 - small stop, 33 - shaft, 34 - small hook, 35 - ring elastic wire. detailed description

The technical solution of the present invention will now be further described with reference to the above drawings - in Fig. 1 and Fig. 2, the front front view of the A2 type exercise bike and the side view of the A23⁄4 fitness. As can be seen from the figure: While the rider is pedaling with the pedals (5) to get the forward thrust of the rear wheel (2), hold the handle (25) with the plastic tube with both hands and counterclockwise. Turning the hand-rotating gear (8), the hand-turning gear (8) drives the endless drive chain (11), and the endless drive chain (11) drives the front-wheel rotating shaft (20) to rotate the counter-rotation gear (21) counterclockwise. The smaller transmission gear (21) drives the front wheel (1) to also rotate counterclockwise, causing the lower edge of the front wheel to slide backwards, creating a backward static force on the ground while facing the lower edge of the front wheel. Produce a forward equal amount Anti-static force, preventing the front wheel from sliding backwards, the forward equal amount of anti-static force generated by the ground on the lower edge of the front wheel is obtained horizontally by the car and the rider. The forward external force given by the ground, because the obtained external force given by the ground offsets the backward internal force of the rider and the car system, and makes the system of the car and the rider The forward internal force can push the rider and the car system together to overcome the rolling friction. The forward internal force of the system of cars and occupants is the driving force that drives the system of passengers and cars. The forward internal force of the system of the car and the occupant can be a prerequisite for the forward thrust of the system of the car and the occupant. At the same time, the system for the ground and the occupant is obtained. Equal external force (static friction). This is the same as the rider who uses the two feet to step on the pedal (5) so that the rear wheel (2) gains the forward external force given by the ground, and also gets the ground with the drive wheel behind all the vehicles. The forward external force and the advancement of the same _σ, but the work is not the forward external force (Mocha) of the ground obtained by the driving wheel, but the internal force of the system of the car and the occupant is working. For bicycles and tricycles, it is actually the occupants who are doing their work, which consumes the internal energy of the person. For a motor vehicle, the machine is actually working, and it consumes the internal energy or electric energy of the fuel in the machine (the same applies hereinafter).

When the handle (25) with the plastic tube is held by both hands and the hand gear (8) is turned clockwise, the hand gear (8) drives the endless drive chain (11), and the endless drive chain (11) drives the front wheel shaft ( 20) - The smaller transmission gear (21) installed at the end also rotates clockwise, but the smaller transmission gear (21) does not drive the front wheel (1) to rotate clockwise, nor can it drive the front wheel (1) to rotate counterclockwise. It is impossible to make the lower edge of the front wheel slide backwards, and it cannot produce a backward static friction force on the ground. The ground cannot generate forward external force to the front wheel and cannot push the front wheel forward.

In Figure 3 - Figure 4 is the front view of the A3 exercise bike front and the side view of the A3 fitness. As can be seen from the figure: The A3 type exercise bike differs from the Α2 type exercise bike in that: the front wheel (1) is obliquely above the frame (3). The front end is a fixed bearing (15) that is inclined backward by 60°, and the fixed bearing (15) The freely rotatable fork (16) is 75 cm long. The short strut (17) fixed at the upper end of the fork (16) is 25 cm long. The rear wheel (2) is two wheels, sitting. (27) is a small plastic chair (27) with a small backrest, small armrest and legless width of 40 cm and 30 cm from the ground, and a horizontal fixed bearing (18) in the hand crank gearbox (9) The position is 35 cm in front and 30 cm in height. This low-level tricycle is stable and suitable for the elderly. Because the seat (27) is low and the front wheel is slightly farther away from the seat (27), the tilt of the fixed bearing (15) is slightly larger. Other structures and The implementation process is the same as that of the A2 exercise bike.

In Figure 5 - Figure 6, the front view of the B2 exercise bike and the side view of the B2 fitness. As can be seen from the figure: When the occupant is stepping on the pedal with both feet (5) to get the forward thrust of the rear wheel (2), hold the handle (25) with the plastic tube with both hands. When the hour hand rotates the shaft (19) in the horizontal fixed bearing (18) in the hand crank gearbox (9), the reverse gear (N) fixedly mounted on the shaft (19) will rotate counterclockwise along with the shaft (19). The fixed gear (S) fixedly mounted on the shaft (19) will not rotate counterclockwise with the shaft (19), the reverse gear (N) will drive the drive chain (11 ') to rotate, and the drive chain (1 Γ) will drive the shaft. (19,) Two differently-sized transmission gears (10) fixedly mounted, the larger transmission gear (10) drives the transmission chain (11) to rotate, and the transmission chain (11) drives the front wheel (1) shaft (20) The right-hand side of the moving gear (2Γ) installed on the rear end of the ordinary bicycle rear axle (the same moving gear (21) rotates counterclockwise, the moving gear (21) drives the front wheel (1) shaft (20) and front The wheel (1) rotates counterclockwise together to make the front wheel lower edge The trend of sliding backwards, producing a backward static force on the ground, while generating a forward equal amount of anti-static friction on the lower edge of the front wheel, preventing the front wheel from sliding backwards. This forward equal amount of anti-static force generated by the ground to the lower edge of the front wheel is the forward external force obtained by the car and the occupant in the horizontal direction, due to the obtained ground giving direction. The external force offsets the backward internal force of the rider and the car system, so that the forward internal force of the car and the rider can push the rider and the car to overcome the rolling Move forward with Mocha. This is the same as the occupant stepping on the pedal with both feet (5) so that the rear wheel (2) gains the forward external force given by the ground.

While the occupant is stepping on the foot pedal (5) with both feet to obtain the forward thrust of the rear wheel (2), hold the handle with the plastic tube (25) with both hands and turn the hand gear clockwise. When the shaft (19) in the horizontal fixed bearing (18) in the box (9) is fixed, the left moving gear (S) fixedly mounted on the shaft (19) will rotate clockwise along with the shaft (19), the shaft (19) The reverse gear (Ν) on the right side of the fixed installation will not rotate clockwise with the shaft (19), and the gear (S) will be coupled to the shaft (19'). The larger fixed transmission gear (10) on the left side rotates counterclockwise, and the rotating shaft (19') drives the larger fixed transmission gear (10) on the right side to rotate counterclockwise. The larger fixed transmission gear (10) on the right side drives the transmission chain ( 11) Rotating, the drive chain (11) drives the front wheel (1) to the right end of the shaft (20) and rotates counterclockwise (21) with the same moving gear (2) installed at one end of the ordinary bicycle rear wheel shaft. The moving gear (21) drives the front wheel (1) and the front wheel (1) to rotate counterclockwise together, causing the lower wheel to slide backwards and create a backward static motion on the ground. At the same time, the ground is opposite to the lower edge of the front wheel to generate a forward equal amount of anti-static force, preventing the front wheel from sliding backwards, and the ground is opposite to the forward edge of the front wheel. Anti-static motor force is the forward external force obtained by the system of the car and the occupant in the horizontal direction. The forward external force given by the ground offsets the system of the occupant and the car. The backward internal force, which allows the car and the rider to receive the forward internal force, can push the rider and the car system together to overcome the rolling friction. This is the same as the rider's stepping on the foot pedal (5) with both feet to make the rear wheel (2) gain the forward external force given by the ground.

That is, the front wheel is counterclockwise, regardless of the handle (25) with the plastic tube held by both hands, counterclockwise or clockwise rotation of the shaft (19) in the horizontal fixed bearing (18) in the manual gearbox 9). Rotating, can be used with the rider on the pedals (5) with both feet to make the rear wheel (2) get forward with the forward external force given by the ground.

In Figure 7-8, there is a front view of the front of the B3 exercise bike and a side view of the B3 exercise bike. As can be seen from the figure: The B3 type exercise bike differs from the B2 type exercise bike in that: the front wheel (1) is obliquely above the frame (3). The front end is a fixed bearing that is inclined backward by 60° (15>, fixed bearing (15) The freely rotatable fork (16) is 75 cm long and the short strut fixed at the upper end of the fork (16)

(17) is 25 cm in length, the rear wheel (2) is two wheels, and the sitting position (27) is 55 cm high from the ground with a small backrest, small armrests and no leg width of 40 cm long and 30 cm long. The small plastic chair (27), the horizontal fixed bearing (18) in the manual gearbox (9) is located 35 cm in front and 30 cm high in the seat. This low-level tricycle is stable and suitable for the elderly. Because of sitting

(27) Low, the front wheel is slightly farther away from the seat (27), so the fixed bearing (15) has a slightly larger inclination. The other structure and implementation process are the same as those of the B2 exercise bike.

In Fig. 9 to Fig. 10 is a front view of the front of the C2 exercise bike and a side view of the C2 exercise bike. As can be seen from the figure: While the occupant is stepping on the pedal (5) with both feet to make the rear wheel (2) gain forward thrust, hold the handle (25) with the plastic tube with both hands and force backwards. When pulling the horizontal steel pipe (12'') above the hand-pushing carrier, the lower right corner of the rectangular steel frame (12) of the push-pull carrier is fixed with a welding radius of 15 cm and the two poles on the right side of the front wheel (16' ,) The middle quarter-disc gear (13) will also rotate clockwise, and the quarter-disc gear (13) will drive the smaller gear on the shaft (23') that engages its teeth. (13) Turn counterclockwise, smaller gear ( 13 ) The other larger gear (13) that drives it on the rotating shaft (23') also rotates counterclockwise, and the other larger gear (13) drives the endless drive chain (14) to rotate counterclockwise. The endless drive chain (14) Then drive the front wheel to rotate counterclockwise, so that the lower edge of the front wheel will slide backwards, produce a backward static force on the ground, and the ground will produce a forward equal amount of anti-static on the lower edge of the front wheel. Mocha, preventing the front wheel from sliding backwards, the forward equal amount of anti-static force generated by the ground on the lower edge of the front wheel is the forward direction obtained by the car and the rider in the horizontal direction. The external force, due to the forward external force given by the ground, offsets the backward internal force of the occupant and the car system, and the forward internal force of the system of the car and the occupant. It can promote the rider and the car system to overcome the rolling friction and advance. This is the same as the forward external force applied to the ground by the rider on the pedals (5) with the two feet on the pedals (2). But when you hold the handle of the plastic tube with both hands (25), push the horizontal steel tube (12") above the hand push-pull carrier forward, the ring drive chain (14) rotates clockwise, but can't drive the front wheel to rotate clockwise. Moreover, the front wheel cannot be rotated counterclockwise, and the ground cannot generate a forward external force to the front wheel.

Figure 11 and Figure 12 show the front view of the front of the C3 and the side view of the C3. As can be seen from the figure: The C3 type exercise bike differs from the C2 type exercise bike in that: the front wheel (1) is obliquely above the frame (3). The front end is a fixed bearing (15) that is inclined backward by 60°, and the fixed bearing (15) The freely rotatable fork (16) has a length of 75 cm. The short struts (17) fixed at the upper end of the fork (16) are 25 cm long. The rear wheel (2) is two wheels, sitting. (27) is a small plastic chair (27) with a small backrest, small armrest and legless width of 40 cm and 30 cm from the ground, and a horizontal fixed bearing (18) in the hand crank gearbox (9) The position is 35 cm in front and 30 cm in height. This low-level tricycle is stable and suitable for the elderly. Because of sitting

(27) Low, the front wheel is slightly farther away from the seat (27), so the fixed bearing (15) has a slightly larger inclination. The other structure and implementation process are the same as those of the C2 exercise bike.

In Figures 13-14 is a front view of the front of the D2 exercise bike and a side view of the D2 exercise bike. As can be seen from the figure: While the occupant is stepping on the foot pedal (5) with both feet to make the rear wheel (2) obtain the forward thrust, both hands hold the handle (25) with the plastic tube and force backwards. Pull the horizontal steel pipe (12'') above the hand-pushing carrier. 吋, the lower right corner of the rectangular steel frame (12) of the hand-pull frame is fixed with a welding radius of 15 cm and the two poles on the right side of the front wheel (16'' ) The middle quarter-disc gear (13) will also rotate clockwise, and the quarter-disc gear (13) will drive the smaller gear on the shaft (23') that engages its teeth. (13) counterclockwise rotation, smaller gear (13) The other larger gear (13) that drives it on the rotating shaft (23') also rotates counterclockwise, and the other larger gear (13) drives the endless drive chain (14) to rotate counterclockwise, the endless drive chain

(14) Re-drive the front wheel counterclockwise to make the lower edge of the front wheel slide backwards, produce a backward static force on the ground, and produce a forward equivalent to the lower edge of the front wheel. The anti-static force, preventing the front wheel from sliding backwards, the forward equal amount of anti-static force generated by the ground on the lower edge of the front wheel is obtained by the car and the rider in the horizontal direction. The forward external force, due to the forward external force given by the ground, offsets the backward internal force of the rider and the car system, and makes the system of the car and the rider The former internal force can push the rider and the car system together to overcome the rolling friction and advance. This and the rider are pedaling with their feet

(5) Make the rear wheel (2) get the forward external force given by the ground and proceed forward. However, when the smaller transmission gear (21) on the left side of the front wheel rotates clockwise, it cannot drive the front wheel to rotate clockwise, and it cannot drive the front wheel to rotate counterclockwise, and the forward external force given by the ground cannot be obtained. .

When the occupant is stepping on the pedal with both feet (5). While the rear wheel (2) is getting the forward thrust, hold the handle with the plastic tube (25) with both hands and push the hand to push the gear forward. When the horizontal steel pipe [12'') above the frame is fixed, the lower right corner of the rectangular steel frame (12) is fixed with a radius of 15 cm and is sandwiched by a quarter circle between the two struts (16'') on the right side of the front wheel. The disc gear (13) will also rotate counterclockwise, and the quarter disc gear (13) will drive the smaller gear (13) on the shaft (23') that engages its teeth to rotate clockwise. The gear (13) drives it with the shaft

The other larger gear (13) on (23') also rotates clockwise, and the other larger gear (13) drives the endless drive chain (14) to rotate smoothly, and the endless drive chain (.14) does not drive. When the wheel rotates clockwise, it cannot drive the front wheel to rotate counterclockwise, and the forward external force given by the ground cannot be obtained.

However, the quarter disc gear (13) in the middle of the two struts (16'') on the left side of the front wheel will also rotate counterclockwise with the right side, and the left quarter disc gear (13) will drive The larger gear (13) on the shaft (23') that engages with its teeth rotates clockwise, and the larger gear () drives the gear (S) on the left side of the front axle to rotate counterclockwise. When the gear (S) rotates counterclockwise, it can drive the front wheel to rotate counterclockwise, so that the lower edge of the front wheel will slide backwards, and a static static force will be generated on the ground. At the same time, the ground will produce a rearward edge of the front wheel. The forward equal amount of anti-static force, preventing the front wheel from sliding backwards, and the forward equal amount of anti-static force generated by the ground on the lower edge of the front wheel is the car and the occupant. The system gets forward in the horizontal direction Force, because the forward external force given by this ground offsets the backward internal force of the rider and the car system, and the forward internal force of the system of the car and the rider Push the rider and the car together to overcome the rolling friction and move forward. This is the same as the occupant who uses the two feet to release the pedal (5) so that the rear wheel (2) is driven by the forward external force given by the ground.

That is, while the occupant is stepping on the pedal (5) with both feet to make the rear wheel (2) obtain the forward thrust, both hands hold the handle (25) with the plastic tube and push the hand to push the gear forward. When the horizontal steel pipe (12' ') above the frame, the rotation of the quarter-disc gear (13) in the middle of the two struts (16'') on the right side of the front wheel cannot drive the front wheel to rotate counterclockwise. The forward external force given by the ground advances, and the rotation of the quarter disc gear (13) in the middle of the two struts (16'') on the left side of the front wheel can drive the front wheel to rotate counterclockwise. The forward force given by the ground advances. - It can be seen from the above: When the handle (25) with the plastic tube is gripped with both hands and pulled forward or pushed forward to the horizontal steel tube (12' ') above the hand-pushing carrier, the front wheel can obtain the direction given by the ground. Advance with the external force, so that the speed of the car can be improved, and the body of the rider can get better exercise at the same time.

In Figure 15 - Figure 16, the front view of the D3 exercise bike and the side view of the D3 exercise bike. As can be seen from the figure: The D3 exercise bike differs from the D2 exercise bike in that: the front wheel (1) is obliquely above the frame (3). The front end is a fixed bearing (15) that is inclined backward by 60°, and the fixed bearing (15) The freely rotatable fork (16) has a length of 75 cm, the short struts (Π) fixed at the upper end of the fork (.16) are 25 cm long, and the rear wheels (2) are two wheels. Seat position (27) is a small plastic chair (27) with a small backrest, small armrest and legless width of 40 cm and 30 cm from the ground, and a horizontal fixed bearing in the hand crank gearbox (9) 18) The position is 35 cm in front and 30 cm in height. This low-level tricycle is stable and suitable for the elderly. Because the seat (27) is low and the front wheel is slightly farther away from the seat (27), the fixed bearing (15) has a slightly larger inclination. The other structure and implementation process are the same as those of the D2 exercise bike. .

It can be seen from Fig. 17 that the gear (S) and the gear mounted on one end of the bicycle rear axle have the same structure. The difference is the action process: The moving gear in the rear wheel of the bicycle is driven by the chain to rotate the gear and the rotating shaft counterclockwise, and the moving gear in the turning gear box is the rotating shaft to drive the gear and the chain to rotate clockwise.

In Fig. 18 is a side view of the reverse gear (N) installed in the crank gear box. From the picture It can be seen that: it consists of a disc (29) fixedly connected with the rotating shaft, a ring (30) which is sleeved on the outer edge of the outer edge of the disc (29) and has a gear which is rotatable around the disc. (29) The outer edge and the inner circumference of the ring (29) have a plurality of equally spaced grooves (31, 31'), and each groove (31) on the outer edge of the disk (29) has a small stop. (32), the small head (32) can be completely trapped in the groove (31) and can be rotated around its right end shaft (33). The small head (32) has a small hook (34) in the middle of the small head (32). The annular elastic thin steel wire (35) passes under the small hook (34), pushes the rotatable left end of the small stop (32) out of the groove, into the groove (3Γ) of the inner edge of the ring, and with the groove (31') Close smooth contact. It has the same structure as the jog gear, except that the small head (32) can rotate to the right end instead of the left end.

When the shaft (33) rotates counterclockwise, the small head (32) in the disc (29) fixedly connected to the shaft is pushed into the groove of the inner edge of the ring by the annular elastic thin steel wire (35) (3Γ In the middle, the small head (32) is pressed to the side of the ring (30) groove (3) perpendicular to the small head (32), and the small head (32) can be grooved against the ring (30) The side of the groove (3Γ) perpendicular to the small stop (32) generates pressure, and the side of the groove (3) perpendicular to the small stop (32) against the small stop (32) cannot be pressed. The small stop (32) is pressed back into the groove (31). Therefore, the ring (30) having the gear on its outer edge can be under the pressure exerted by the small head (32) on the side of the ring (30) groove (3) perpendicular to the small stop (32). Follow the shaft (33) to turn counterclockwise.

When the shaft (33) rotates clockwise, the small head (32) has been pushed into the groove (3) of the inner edge of the ring by the annular elastic thin steel wire (35), but the small head (32) is away from the circle. The side of the ring (30) groove (31, > perpendicular to the small head (32), the small head (32) to the ring (30) groove (3 Γ) is perpendicular to the small head (32) The side of the ring does not generate pressure, only the side of the ring (30) groove (3Γ) which is tangent to the small stop (32) is pressed, and the ring (30) groove (3) and the small stop (32) The side of the parallel tangent produces an opposite direction of pressure on the side of the small stop (32). This opposite pressure overcomes the small elastic force of the annular elastic thin wire (35) and presses the small stop (32) back into the circle. In the groove (31) of the disc (29), the small stop (32) can hardly generate star force to the ring (30), so the small stop (32) in the rotating shaft (33) can push the outer edge of the shaft Ring of the gear. (30) Turn clockwise.

Claims

1. Manual pedaling fast exercise bike and tricycle (hereinafter referred to as "exercise car"), from front wheel (1), rear wheel (2), frame (3), brake (4), foot pedal (5) and Its transmission gear (6) and drive chain (7), manual gear (8) or manual gearbox (9) and its transmission gear (10) and drive chain (11), or long hand push-pull carrier ( 12) and its transmission gear

( 13 ) and the transmission chain (14), which is characterized in that: the front wheel (1) is inclined above the length of the front end of the frame (3) which is inclined 50° or 60° backwards. The upper end of the 67 cm or 77 cm fork (16) is fixedly mounted with a vertically upward 30 cm or 25 cm long short strut (17), and a horizontal level is mounted on the upper end of the short strut (17). The fixed bearing (18) is fixedly mounted on the rotating shaft (19) in the horizontal fixed bearing (18) with a large hand-rotating gear (8) or a hand-turn gear box (9), on the front wheel shaft (20) One end is fitted with a transmission gear (2) of the same size and the same structure as the transmission gear (2) mounted on one end of the rear wheel of the ordinary bicycle, in a larger hand-rotating gear (S) or a hand-turn gearbox ( 9) An annular drive chain (11) is connected between the smaller transmission gear (21) mounted at one end of the front wheel shaft (20), or the rear end of the frame (3) obliquely above the front wheel (1) a 61 cm long fork that can be freely rotated in a fixed bearing (15) tilted 50° or 60° (16) at both ends of the horizontal fixed bearing (22), the shaft (23) is mounted at both ends with a long hand-pushing carrier (12), and a longer hand-pushing carrier (12) below the transmission gear (13) and a smaller transmission gear mounted at one end of the front wheel shaft (20)

(21) The toothed joint is connected or connected by an endless drive chain (14). The front wheel (1) is a wheel, and the rear wheel (2) is a wheel, or two wheels, which are divided into different structures: (1) ), hand reverse pedal fast fitness bicycle (hereinafter referred to as "A2 type exercise bike"), (2), hand reverse pedal fast fitness tricycle (hereinafter referred to as "A3 type exercise bike"), (3), hand turn reverse foot Step fast fitness bicycle (hereinafter referred to as "B2 type exercise bike"), (4), hand reverse reverse pedal fast fitness tricycle (hereinafter referred to as "B3 type exercise bike"), (5), hand pull pedal fast fitness bicycle (hereinafter referred to as "C2 type exercise bike", (6), hand-pushing pedal fast fitness tricycle (hereinafter referred to as "C3 type exercise bike"),

(7), push the foot and pull the pedal fast fitness bicycle (hereinafter referred to as "D2 type exercise bike"), (8), push the foot and pull the pedal fast fitness tricycle (hereinafter referred to as "D3 type exercise bike").

2. The exercise bike according to claim 1, characterized in that: the front end of the frame (3) of the A2 type exercise bicycle (1) is fixed at a front end of the frame (3) inclined by 50° and has a length of 14 cm. (15) The upper end of the fork (16) with a length of 67 cm which can be freely rotated, fixedly mounted with a vertically upward short strut (Π) of 30 cm in length, at the upper end of the short strut (17) Mounted with a 3 cm long horizontal fixed bearing (18), horizontal fixed bearing (18) and a 67 cm long fork (16) with a thin long struts (17') ), a rotating shaft (19) with a length of 30 cm in the horizontal fixed bearing (18) is fixedly mounted at one end of the fixed bearing with a 10 cm radius of the hand-rotating gear (8), and the horizontal fixed bearing

(18) The shaft (19) is fixedly mounted at both ends with a pair of parallel reversed lengths of 20 cm and a short shaft (24) perpendicular to the shaft. The ends of the two short shafts (24) are each mounted with a length of 10 cm with a short handle (24) perpendicular or parallel to the handle of the plastic tube (25), the larger hand-turn gear (8) center position 23 cm in front of the seat, 15 cm high, on the front wheel shaft One end of (20) is equipped with a transmission gear (2Γ) mounted on one end of the rear wheel of the ordinary bicycle, a smaller transmission gear (21) of the same size and structure, and a horizontal fixed bearing at the upper end of the short strut (17) ( 18) The larger hand-rotating gear (8) fixedly mounted on the shaft (19) and the smaller transmission gear (21) mounted at one end of the front wheel (1) shaft (20) are connected by an endless drive chain (11) , between the horizontal fixed bearing (18) at the upper end of the short strut (16) and the rotating shaft of the front wheel, a flat long chain case (26) made of thin metal is provided, and the front wheel (1) is a wheel, rear The wheel (2) is also a wheel, the frame 3) sitting in the middle of the upper portion (27) is 80 cm high from the ground of an ordinary small plastic seat, the horizontal position of the hand switch gear (8) fixed to the center bearing (18) in the front seat 23 cm, 15 cm high.

3. The exercise bike according to claim 1, wherein: the front wheel of the A3 exercise bike

(1) Slanted upper frame G) The upper end of the fork (16) with a length of 77 cm that can be freely rotated in a fixed bearing (15) with a length of 22° inclined backward by 60° at the front end, fixedly mounted with a vertical Straight up 25 cm long struts (17), mounted on the upper end of the short struts (17) with a 3 cm horizontal fixed bearing (18), horizontal fixed bearing (18) and length 77 cm A thin long struts (17') are mounted between the forks of the forks (16), and are fixed at one end of the fixed bearing on the shaft (19) of 30 cm in the fixed bearing (18). A hand-rotating gear (8) with a radius of 10 cm is mounted, and a pair of parallel reversed short shanks with a length of 20 cm and a vertical axis are fixedly mounted on both ends of the rotating shaft (19) in the horizontal fixed bearing (18). (24), the tail ends of the two short shanks (24) are fitted with a handle of a plastic tube (25) with a length of 10 cm perpendicular or parallel to the short shank (24), a larger hand-turning gear ( 8) The center position is 35 cm in front of the seat (27) and 30 cm high, in the front wheel (1) shaft (20) One end is fitted with a transmission gear (2Γ) mounted on one end of the normal bicycle rear wheel shaft Smaller transmission gears (21) of the same size and structure, larger rotating gears (8) fixed on the rotating shaft (19) in the horizontal fixed bearing (18) at the upper end of the short strut (16) and on the front wheel (1) The smaller transmission gear (21) mounted at one end of the shaft (20) is connected by an endless drive chain (11), and the horizontal fixed bearing (18) and the front wheel (1) at the upper end of the short strut (17) Between the shaft (20) is a flat long chain case made of thin iron (26), the front wheel (1) is a wheel, the rear wheel (2) is two wheels, and the seat (27) is higher than the ground. It is a small plastic chair with a small backrest, small armrest and no leg width of 40 cm and a length of 30 cm. The position of the horizontal fixed bearing (18) in the center of the hand-rotating gear (8) is 35 cm in front of the seat. 30 cm. .

4 . The exercise bike according to claim 1 , wherein: the front wheel of the B2 type exercise vehicle (1) has a fixed bearing with a length of 14 cm inclined forward by 50° at the front end of the obliquely upper frame (3). 15) The upper end of the fork (67) with a length of 67 cm that can be freely rotated, fixedly mounted with a vertically upwardly short 30-centre struts (17), mounted on the upper end of the short struts (17) There is a horizontal fixed bearing (]S) with a length of 3 cm. A large hand is fixed on both sides of the fixed bearing (18) on the shaft (19) with a length of 30 cm in the fixed bearing (18). The gearbox (9), the hand-turn gearbox (9) is a flat metal with a thickness of 17 cm, which is mounted on the two sides of the thicker two parallel horizontal shafts. The upper shaft of the box passes through the horizontal fixed bearing (18) at the upper end of the strut in the hand-turn gearbox (9) and the fixed bearing on the two side walls of the hand-turn gearbox (9) at the lower end of the hand-turn gearbox (9) The outer surface is equipped with a fixed bearing, and a fixed bearing is also mounted on the fork of the fork rod, one at each end The ends of the shorter struts (17') of a round hole are respectively fixed by a short bolt to the fixed bearing and the fork rod on the outer surface of the lower end of the manual gearbox (9). (16) In the fixed bearing at the bifurcation, Two transmission gears with a radius of 10 cm are fixedly mounted on the rotating shafts (19) on both sides of the horizontal fixed bearing (18) in the manual gearbox (9): one on the left is the following gear (S), one on the right It is a reverse gear (N), and the rotating shaft (19) extending out of the turning gear box (9) is fixedly mounted at both ends with a pair of parallel reversed short shanks (24) with a length of 20 cm and two vertical shafts. The tail end of the shank (24) is mounted with a handle of a plastic tube having a length of 10 cm perpendicular or parallel to the short shank (25), and three adjacent transmission gears are fixed on the lower shaft (19,) : The two transmission gears on both the left and right sides are 8 cm in radius, the middle transmission gear has a radius of 5 cm, and the left transmission gear and the running gear (S) on the upper shaft (19) are toothed and interlocked, and the middle is smaller. The transmission gear and the reverse gear (N) on the upper shaft (19) are connected by a transmission chain (1 Γ ), and the right transmission gear passes through the transmission chain (11 ) and a common bicycle mounted at one end of the front wheel shaft A transmission gear (2Γ) mounted at one end of the wheel shaft is connected to a smaller transmission gear (21) of the same size and structure, and a flat length is arranged between the outer surface of the lower end of the manual gearbox (9) and the rotating shaft of the front wheel. A chain case (26) made of thin iron, the front wheel (1) is a wheel, the rear wheel (2) is also a wheel, and the seat (27) in the upper middle of the frame (3) is 80 cm above the ground. Ordinary small plastic seat, horizontal fixed bearing in the gearbox (9)

(18) The position is 30 cm in front and 15 cm in height.

5. The exercise bike according to claim 1, wherein: the length of the front end of the front frame of the B3 type exercise bicycle is inclined to 60 degrees backward and the length of the fixed bearing of 20 cm is 60 degrees. The upper end of the fork of the centimeter is fixedly mounted with a vertical upwardly 25 cm long short strut (17), and a fixed length bearing (18) of 3 cm in length is mounted on the upper end of the short strut (17). A large hand-turn gearbox (9) is fixedly mounted on the rotating shaft (19) of 30 cm in length in the fixed bearing (18) against the fixed bearing (18). The hand-turning gearbox (9) is a flat metal box with a thickness of 17 cm, which is two large and small, and has a semi-circular shape and a semi-circular shape, and two upper and lower horizontal shafts are arranged between the two side walls, and the upper shaft passes through the middle of the manual gear box (9). a fixed bearing on the two side walls of the horizontal fixed bearing (18) and the manual gearbox (9) at the upper end of the rod, and a fixed bearing on the outer surface of the lower end of the manual gearbox (9), at the fork of the fork Also equipped with a fixed bearing, one two The ends of the shorter struts (17') each having a small round hole are respectively fixed by a short bolt to the fixed bearing on the outer surface of the lower end of the manual gearbox (9) and the fixed bearing at the fork of the fork (16) Two transmission gears with a radius of 10 cm are fixedly mounted on the rotating shafts (19) on both sides of the upper horizontal fixed bearing (18) in the manual gearbox (9): one of them is the running gear (S), One is the reverse gear (N), and the outer shaft (19) extending out of the hand gear box (9) is fixedly mounted at both ends with a pair of parallel reversed lengths of 20 cm and a short shaft (24) perpendicular to the shaft, two The tail end of the short shank (24) is fitted with a 10 cm long vertical or parallel handle with a plastic tube (25), and the lower shaft (19') is fixed with three adjacent transmissions. Gear: The two transmission gears on both the left and right sides are 8 cm in radius, the middle transmission gear has a radius of 5 cm, and the left transmission gear and the running gear (S) on the upper shaft (19) are toothed and interlocked. Small transmission gear and upper shaft

(19) The reverse gear (N) is connected by the drive chain (1Γ), and the right drive gear is connected. The transmission chain (11) is connected to a small transmission gear (21) of the same size and the same structure as that of the transmission gear (2) installed at one end of the front wheel shaft of the conventional bicycle. Between the fixed bearing at the lower end of the box (9) and the rotating shaft of the front wheel, there is a long and long chain case (26) made of thin iron. The front wheel (1) is a wheel and the rear wheel (2) is two wheels. , Seat position (27) is a small plastic chair with a small backrest, small armrest and legless width of 40 cm and 30 cm from the ground, horizontal fixed bearing in the hand-turn gearbox (9) (18) The position is 31 cm in front and 30 cm in height.

6. The exercise bike according to claim 1, wherein: the front wheel of the C2 exercise bike

(1) The fork rod (15) with a length of 61 cm on the upper side is inclined (15) The smooth shaft (16) with a length of 17 cm on the upper part of the tube (15) The length of the front end of the frame is inclined by 50° and the length of the frame is 15 cm. In the fork of the fork (16), there is a horizontal fixed bearing (22) with a length of 19 cm, the fork

(16) The lower part has a struts (16') on the left side of the front wheel, and two struts (16'') on the right side of the front wheel. The lower ends of the left and right struts have a horizontal fixed bearing, and the center of the front wheel is fixed horizontally. The horizontal fixed bearing at the lower end of the left and right struts of the bearing and the fork is supported by a horizontally smooth shaft (20) of 25 cm in length, which is horizontally close to the horizontal smooth shaft (23) at the fork of the fork. The fixed bearing (22) is mounted on both sides with a long hand-pushing carrier (12) that can be rotated to the right of the front wheel to rotate the horizontal smooth shaft (23), the middle of the push-pull carrier (12) and the horizontal smooth shaft ( 23) A rectangular steel frame (12) with a height of 25 cm and a width of 23 cm is formed. The upper middle of the rectangular steel frame (12) is fixedly welded with a smooth shaft with a length of 17 cm and the upper part of the fork (15). 16) 40 cm long steel pipe (12') in the same direction, the upper end of the steel pipe (12') is fixedly welded with a 50 cm long horizontal frame (12'') and horizontal steel pipe (3), horizontal steel pipe ( 12'') has a 10 cm long plastic sleeve at both ends (12 '"), the lower right corner of the rectangular steel frame (12) is fixedly welded with a radius of 15 cm and a quarter-disc gear (13) sandwiched between the two struts (16'') on the right side of the front wheel. There is a horizontal fixed bearing in the middle of the two struts on the right side of the front wheel, a horizontal smooth rotating shaft (23') in the two horizontal fixed bearings, and two gears fixed on the horizontal smooth rotating shaft (23'). A smaller gear on the right side and a quarter-disc gear (13) are engaged with each other, a larger gear on the left side and a transmission gear (21 ' mounted on one end of the front wheel shaft and mounted on one end of the ordinary bicycle rear wheel shaft. The smaller transmission gears (21) of the same size and the same structure are connected by a ring-shaped transmission chain (14), and a fixed bearing (15) which is inclined backward by 50° at the front end of the frame (3) is fixed. a forwardly inclined rectangular retaining frame (28), fixed to the horizontal fixed bearing (22) on the right side of the front wheel and the horizontal smooth rotating shaft (20) with a flattened upper made of thin iron and a flat top Removable gear chain case (26), front wheel (1) is a wheel, rear wheel (2) is also a wheel, seat (27) is a small plastic sitting 80 cm from the floor, horizontal steel pipe

The position of (12") is 10 cm in front and 40 cm in height.

7. The exercise bike according to claim 1, wherein: the front wheel of the C3 exercise bike

(1) A fork with a length of 61 cm on the upper side (15) A smooth shaft with a length of 17 cm on the upper part (16) A fixed bearing with a length of 15 cm inclined 60° backwards at the front end of the frame

(15) In the fork of the fork (16), there is a horizontal fixed bearing (22) with a length of 19 cm. The lower part of the fork (16) has a strut (16') on the left side of the front wheel, on the right side of the front wheel. There are two poles

(16"), the left and right three struts have a horizontal fixed bearing at the lower end, and the horizontal fixed bearing at the center of the front wheel and the horizontal fixed bearing at the lower left and right struts of the yoke are horizontally smoothed by a length of 25 cm ( 20) In Guanchuan, a horizontal smooth bearing (23) with a length of 28 cm at the fork of the fork is mounted on both sides of the horizontal fixed bearing (22) with a lower rotation of the horizontal smooth shaft (23). The long hand-pushing carrier (12) to the right of the front wheel, the middle of the push-pull carrier (12) and the horizontal smoothing shaft [23) form a rectangular steel frame (12) with a height of 25 cm and a width of 23 cm. The middle and upper part of the rectangular steel frame (12) is fixedly welded with a smooth shaft (16) with a length of 17 cm and an upper part of the fork (15). The 40 cm long steel tube (12') in the same direction, the steel tube (12' The upper end is fixedly welded with a 50 cm long horizontal steel tube (12'') and the vertical steel tube (12''). The horizontal steel tube (12'') is covered with a 10 cm long plastic sleeve (12'" ), rectangular steel frame (12) The lower right corner is fixedly welded with a radius of 15 cm and a quarter-disc gear (13) sandwiched between the two struts (16'') on the right side of the front wheel, in the middle of the two struts on the right side of the front wheel Each has a horizontal fixed bearing, a horizontal smooth shaft (23') is mounted in the two horizontal fixed bearings, two gears are fixed on the horizontal smooth shaft (23'), and a smaller gear (13) on the right side Quarter disc gear

(13) Coupling connection, a large gear (13) on the left side and a small transmission gear (the same size and the same structure) installed on one end of the front wheel shaft and the transmission gear (2Γ) installed at one end of the ordinary bicycle rear wheel shaft. ) is connected by a ring drive chain (]4), and a slanted rectangular frame is fixed in front of the fixed bearing (15) which is inclined backward by 50° at the front end of the frame (3).

(28), on the horizontal fixed bearing (22) on the right side of the front wheel and on the horizontally smooth shaft (20) Fixedly fitted with a flat long, thin metal sheet with a flat top and a removable gear chain case (26), the front wheel (1) is a wheel, and the rear wheel (2) is two wheels, sitting ( 27) is a small plastic chair with a small backrest, small armrest and legless width of 40 cm and 30 cm from the ground. The horizontal steel pipe (12'') is located 10 cm in front and 50 in height. At the centimeter.

8. The exercise bike according to claim 1, wherein: the front side of the front wheel (1) of the D2 type exercise vehicle has a smooth shaft of a length of 17 cm on the upper side of the fork (16) having a length of 61 cm ( 16) In the fixed bearing (15) with a length of 15 cm tilted 50° backwards at the front end of the frame (3), the fork has a horizontal fixed bearing of 19 cm in length at the fork of the fork, fork (16) The lower part has two struts (16') on the left side of the front wheel, and two struts (16") on the right side of the front wheel. The lower ends of the four left and right struts have a horizontal fixed bearing and a horizontal fixed bearing at the center of the front wheel. And the horizontal fixed bearing at the lower end of the left and right spurs of the fork is a horizontal smooth shaft (20) with a length of 31 cm. Among them, the length of the fork (16). at the fork is 31 cm. The smooth shaft (23) is mounted on both sides of the fixed bearing (22) with a long hand-pushing carriage Ω2) across the front wheel that can rotate horizontally and smoothly. (23), hand-pull carrier (12) The middle and the horizontal smooth shaft (23) with a length of 31 cm form a height of 25 cm. A rectangular steel frame (12) with a width of 23 cm, a rectangular steel frame (12) fixedly welded to the upper middle of the forked rod (16) and a length of 17 cm in the upper part of the smooth shaft (16) in the same direction 40 cm long steel pipe (12,), steel pipe (12,) fixed at the upper end with a 50 cm long and frame (3) vertical horizontal steel pipe (12''), horizontal pipe with a 10 cm at both ends Long plastic sleeve (12'''), the lower right corner and the lower left corner of the rectangular steel frame (12) are fixedly welded with a 15mm radius of the two poles clamped on the left and right sides of the front wheel (16', 16 ") The middle quarter-disc gear (13) has a horizontal fixed bearing in the middle of the two struts (16'') on the right side of the front wheel, and a horizontal smooth shaft in the two horizontal fixed bearings ( 23''), two gears (13) are mounted on the horizontal smooth shaft (23''): a smaller gear (13) on the right and a quarter-disc gear (13) on the right, one on the left Large fixed gear (13) and one common rear wheel axle mounted on one end of the front wheel shaft Drive gears (2Γ) installed at one end are connected by a ring drive chain (14) between the smaller drive gears (21) of the same size and structure. The two struts on the left side of the front wheel are each horizontally fixed. Bearing > One of the two horizontal fixed bearings The horizontal smooth shaft (23'), on the horizontal smooth shaft (23') is equipped with a top and left quarter disc gear (13) with a 10 cm radius transmission gear (13) The lower end of the transmission gear (Π) and one end of the front wheel shaft are mounted with a transmission gear (2) of the same size and the same structure as the transmission gear of the rear wheel of the ordinary bicycle.

(21) The toothed joint is fixed, and a fixed forward bearing (15) inclined at 50° rearward of the front end of the truss (3) is fixed with a forwardly inclined rectangular retaining frame (28) fixed horizontally on the left and right sides of the front wheel. The bearing (22) and the horizontal smooth shaft (20) at the center of the front wheel are fixed with a flat long flat top and removable gear chain case (26) made of thin iron, front wheel (1) It is a wheel, the rear wheel (2) is also a wheel, the seat (27) is a small plastic seat 80 cm from the ground, and the horizontal steel pipe (12'') is located 10 cm in front and 40 cm high in the seat.

9. The exercise bike according to claim 1, wherein: the front side of the front wheel (1) of the D3 type exercise vehicle has a smooth shaft of a length of 17 cm on the upper side of the fork (16) having a length of 61 cm ( 16) In the fixed bearing with a length of 15 cm inclined backward by 60° at the front end of the frame (3), the fork (16) has a horizontal fixed bearing (22) with a length of 19 cm. The lower part of the rod (16) has two struts (16') on the left side of the front wheel and two struts on the right side of the front wheel.

(16"), the left and right four struts have a horizontal fixed bearing at the lower end, and the horizontal fixed bearing at the center of the front wheel and the horizontal fixed bearing at the lower end of the left and right four struts of the yoke are horizontally smoothed by a length of 31 cm. (20) Guanchuan, in which a horizontal smooth bearing (23) with a length of 31 cm at the fork of the fork (16) is mounted on both sides of the horizontal fixed bearing (22) with a horizontal smoothing shaft (23) Rotating the long hand-pushing carrier (12) across the front wheel, the push-pull carrier (12) and the horizontal smooth shaft (23) form a rectangular steel frame with a height of 25 cm and a width of 23 cm (12) ), the middle and upper part of the rectangular steel frame (12) is fixedly welded with a steel pipe (12') with a length of 17 cm and a smooth rotating shaft with a length of 17 cm in the upper direction of the fork, and the upper end of the steel pipe (12') is fixedly welded. There is a 50 cm long horizontal frame (12'') with a frame (3) vertical, and a 10 cm long plastic casing is placed at both ends of the horizontal steel pipe.

(12"'), the lower right corner and the lower left corner of the rectangular steel frame (12) are fixedly welded with a radius of 15 cm and sandwiched between two struts 6', 16") on the left and right sides of the front wheel. A disc-shaped gear (13) has a horizontal fixed bearing in the middle of the two struts (16'') on the right side of the front wheel, and a horizontal smooth shaft (23'') in the horizontal fixed bearing. Two gears (13) are mounted on the smooth shaft (23''): a smaller drive gear (13) on the right and The quarter-disc gear (13) is meshed with a large transmission gear (13) on the left side and a transmission gear (2) mounted at one end of the front wheel shaft and one end of the ordinary bicycle rear wheel shaft. The smaller transmission gears (21) of the same size and the same structure are connected by a ring-shaped transmission chain (14), and each of the two struts (16') on the left side of the front wheel has a horizontal fixed bearing, and the two horizontal fixed bearings There is a horizontal smooth shaft (23'), and a horizontally smooth shaft (23') is equipped with a top and left quarter disc gear (13) with a 10 cm radius drive gear ( 13), the lower edge of the transmission gear (B) and one end of the front wheel shaft are mounted with a transmission gear (2) mounted on one end of the ordinary bicycle rear wheel shaft. The smaller transmission gear (21) of the same size and the same structure is meshed. At the front end of the fixed bearing (15) which is inclined backward by 50° at the front end of the frame (3), a forwardly inclined rectangular retaining frame (28) is fixed, and horizontally fixed bearings (22) and front sides on the left and right sides of the front wheel Wheel center The horizontal smooth shaft (20) is fixedly fitted with a flat long flat-topped and removable gear chain case (28) made of thin iron, the front wheel (1) is a wheel, and the rear wheel (2) It is two wheels. The seat is a small plastic chair with a small backrest, small armrest and legless width of 40 cm and 30 cm from the ground. The position of the horizontal steel pipe (12'') is in front of the seat. Centimeter, 50 cm high.

10. The exercise bike according to claim 1, wherein the running gear (S) in the manual gearbox (9) installed in the B2 exercise bike and the B3 exercise bike is the rear axle of the ordinary bicycle. The transmission gear (2Γ) installed at one end has the same structure with a transmission gear having a radius of 10 cm, and the reverse gear (N) installed in the crank gear box (9) is fixedly connected to the shaft (19). (29), a ring (30) with an outer radius of 10 cm, which is sleeved on the outer edge of the disc (29) and has a gear that can be rotated around the disc (29), outside the disc (29) There are several equally spaced grooves (31, 31') along the inner edge of the ring (29), and a small stop (32) in each groove (31) of the outer edge of the disk (29). The small head (32) can be completely trapped in the groove (31) and can be rotated around its right end shaft (33). The small head (32) has a small hook (34) in the middle of the small head (32) with an annular elastic thin steel wire. (35) Pass under the small hook (34), push the rotatable left end of the small stop (32) out of the groove, and get caught Along the inner ring groove (3), the smooth and intimate contact with the groove (3Γ).