WO2009140903A1

WO2009140903A1 - Straight-pedalling rebounding bicycle

Info

Publication number: WO2009140903A1
Application number: PCT/CN2009/071826
Authority: WO
Inventors: 王安华
Original assignee: Wang Anhua
Priority date: 2008-05-22
Filing date: 2009-05-18
Publication date: 2009-11-26
Also published as: CN101284559A

Abstract

A straight-pedalling rebounding bicycle uses a straight-pedalling rebounding propulsion configuration to replace a circular motion propulsion configuration of the pedal of the conventional bicycle. The straight-pedalling rebounding bicycle comprises a bicycle frame, two wheels, two handlebars, and also comprises a straight-pedalling rebounding frame, a soft-landing precision single propeller, a straight-pedalling rebounding device, and a reversing traction device. With the help of the soft-landing precision single propeller, the straight-pedalling rebounding bicycle solves the problem of frequent noises generated by racing impact and frequent shaking that is uncomfortable for the rider.

Description

Straight stepping bicycle technology

The invention relates to a bicycle, in particular to a direct-bounce bicycle, a straight-back rebound racing car, a direct-rebounding speed-shifting vehicle, a straight-back bounce electric dual-purpose vehicle, a straight-back bounce tricycle, and the other designed and manufactured by the straight-back rebound structure. Transportation.

Background technique

Traditional bicycles that have been popular at home and abroad for many years, although their appearances and styles are ever-changing, their basic structure has not changed. The media often publishes reports on bicycle innovation, but it does not affect the structure of traditional bicycles. In particular, the pedals do not change in the circular motion propulsion structure. The traditional bicycle has such a strong vitality that it has many valuable advantages, especially the practicality and structure. Simple, the ankle is very smooth during circular motion, no impact, no noise. The human body force on the ankle is decomposed into two component forces. The first component force is tangent to the trajectory of the circular motion of the ankle, and the forward driving force is useful power. The second driving force is useless power, which is a waste of physical strength. Therefore, the conversion efficiency of traditional bicycles is low. In order to improve conversion efficiency, some people have studied bicycles and patented in the past. The characteristics of the straight pedal bicycle are: Straight down to return upwards, round-trip movement. The rotation of the drive shaft should not be affected during the return to the up direction. Therefore, it must be disconnected or slipped from the drive shaft. The bicycle flywheel has this function, which is why researchers use the flywheel to achieve this function. The flywheel is perfect for the rear axle of the bicycle, because it always rotates in one direction during driving, and rarely reverses and slips. If there is a big problem with the bicycle, the flywheel will turn a small distance (arc length) from the reverse to the forward rotation and then suddenly hit the gear. Since the bicycle is moving up and down, frequent impacts not only generate frequent noise, but more important frequent impacts will make the rider I feel very tired, so there is no practicality for a straight pedal.

I have studied bicycles in 1980, and the phenomenon of idling impact is not solved, just like building a tall building on a sand beach. Although after meditation, I did not find a reasonable use of the structure. Since April 2006, I concentrated on the second design of a bicycle, and finally solved this technical problem. In the course of the research, it was found that the straight step and the rebound were more labor-saving, so the design of the straight-bounce bicycle was completed.

Summary of the invention

The object of the present invention is to provide a direct-rebound bicycle, and the straight-back bounce design of the straight-bounce bicycle is also applicable to a straight-back rebound racing car, a straight-back bounce car, a straight-back bounce electric car, a straight-back bounce tricycle, And other vehicles designed and built with a straight-back bounce structure.

In order to achieve the above object, the technical solution adopted by the present invention is as follows:

The difference between a straight-back bounce bicycle and a conventional bicycle is: a circular motion propulsion structure is replaced by a straight-back bounce propulsion structure instead of a conventional bicycle pedal.

The reclining bicycle structure of the invention comprises a bicycle handlebar, a bicycle front fork, a bicycle seat and a bicycle wheel, and the structure further comprises a straight-back rebound frame, a soft landing precision single propeller, a straight-back rebound device, and a reversing and traction Device.

The invention directly slides the rebound frame: the basic difference between the straight-step rebound frame and the various conventional bicycle frames is: there are left guiding steel pipe 1 and right guiding steel pipe 1 on both sides of the frame, and the left and right guiding steel pipes pass through The weld fixing key 30 under the weld fixing key 5 becomes a part of the straight-back bounce bicycle frame. Upper welding fixed key 5 welded and fixed left and right guiding steel pipe 1, frame-seat steel pipe 6 (Fig. 2, Fig. 3); lower welding fixed key 30 will guide left and right steel pipe 1, frame-front oblique beam steel pipe 29 welded and fixed as one body, the frame-shaft steel tube 28 has a middle shaft 27 and a middle shaft rolling bearing, and there are two in the upper part of the left and right guiding steel tubes 1 The opposite window 2, the window 2 has the same shape, the same size, and the same height. The two windows 2 are 180° apart, and the upper ends of the left and right guiding steel pipes 1 are threaded, and they are respectively fitted with the lower threads on the left and right hollow covers 7, and are fastened and fixed. Figure 1 is a frame with horizontal beams, and Figure 3 is a frame without horizontal beams.

The guiding steel pipe 1 in the invention may be a square steel pipe, the guiding steel pipe processed by the square steel pipe is also called a square guiding steel pipe, and the square guiding steel pipe is equipped with a two-in-one pulley bracket, which has two kinds of the pulley bracket 8 and the hollow cover 7 The function is combined into one. Figure 16 is a schematic view of the two-in-one pulley bracket, and Figure 17 is a side view of the two-in-one pulley bracket. The left and right two generations of hollow covers 72 located at the lower part of the two-in-one pulley bracket are respectively inserted into the upper ends of the left and right guiding steel pipes 1, And close to the inner wall of the outer side surface of the square guiding steel pipe, and the fixing hole is inserted through the corresponding circular hole of the upper end of the square guiding steel pipe to be screwed and fixed with the screw hole on the generation hollow cover 72.

The soft landing precision single propeller of the present invention: the soft landing precision single pusher consists of a left single propeller 23 and a right single propeller 24 mounted on the bicycle center shaft 27 (Fig. 3). The left and right single propellers have the same structure, the same size, and bilateral symmetry, so we will focus on the structure of the left single propeller. The main structure of a single propeller is the inner ring and the outer ring, the inner ring is called the base ring (Fig. 6), and the outer ring is called the single push ring (Fig. 8). The base ring is a double-sided structure, the outer side is called the base ring A face 37, and the inner side is called the base ring B face 39 (Fig. 7). There are N steel sliding grooves 45 on the A side and the B side, and the A and B side steel sliding grooves have the same structure, the same size, and the same distribution. The purpose of our design of double-sided is to minimize the idling distance (arc length), improve the accuracy, shockproof, anti-noise, so the A and B faces should be staggered by an angle. According to the design of Figure 5, this angle corresponds to the circumference of the base ring. The arc length is 0.6 mm. Referring to FIG. 8, there are N+1 or N-1 uniformly distributed single-propelled grooves 48 on the inner circumference of the single push ring. One side of the single-propelled groove 48 is a slope, which is called a single push. The grooved slope 50, the other side of which is a single thrust groove load surface 49, the bottom of the single thrust groove 48 has a soft landing elastic body 51, and the soft landing elastic body 51 has two important elastic faces, one of which is a tangential elastic surface. 52, the other is a centrifugal direction elastic surface 53. The soft landing elastomer 51 is easily replaceable, the old soft landing elastomer is drawn from the side, and the new soft landing elastomer is pushed in from the side.

The soft landing precision one-way thruster outer ring 71 and the inner ring 70 may be in a sliding friction manner, and on the inner side of the left single thruster, there is an inner annular cover 40 (Fig. 8), and the inner annular cover has a circumference. Fine thread, which is tightly fixed with the fine thread corresponding to the single push ring. The outer side of the left single propeller has an outer annular cover, and the outer annular cover has fine threads around it, which cooperates with the fine thread corresponding to the single push ring. The outer ring 71, the inner annular cover 40 and the outer annular cover 41 are combined and fixed integrally, and the central circular hole of the inner annular cover and the central circular hole of the outer annular cover respectively form a sliding friction with the circle corresponding to the inner ring, and the right single propulsion The structure of the sliding friction is the same as that of the single propeller.

The rolling contact friction mode may also be adopted between the outer ring and the inner ring of the soft landing precision one-way thruster, and the m annularly distributed steel balls 67 are located between the circumference of the outer annular cover 41 and the inner circle of the corresponding outer ring 71. The circular hole in the central portion of the outer annular cover 41 is a screw hole which is screwed and fixed with the screw 69 of the corresponding inner ring 70. Similarly, there are also m between the circumference of the inner annular cover 40 and the inner circle of the corresponding outer ring 71. The circularly distributed steel ball 67, the circular hole in the central portion of the inner annular cover 40 is a screw hole, which is screwed and fixed with the screw 69 of the corresponding inner ring 70, so that the inner annular cover 40, the outer annular cover 41 and the inner annular ring 70 are combined. Fixedly integrated, when the outer ring 71 is inverted, the inner and outer two sets of annularly distributed steel balls 67 roll in the respective annular tracks to form rolling friction.

Figure 5 of the present patent application is drawn at N = 12. The central portion of the soft landing precision single propeller has a shaft hole 47 and a positioning platform 46 which are closely matched with the center shaft 27 and the center shaft positioning groove 31. Positioning screw The wire 34 is screwed and fixed through the circular hole 33 (Fig. 7) in cooperation with the screw hole on the central shaft. It is also possible to precisely fit the center shaft with the shaft hole by means of a key pin structure without using a positioning platform. The circular window 44 on the outer annular cover 41 is for adjusting the set screw 34. The dust cover 36 is screwed and fixed with the outer annular cover 41; the screw hole 43 is a spare fixing screw hole. The outer circumference of the left single propeller is the trunking 35 (Fig. 3, Fig. 4). Two wire fixing keys 26 fix the upper end of the left traction wire 21 and one end of the reverse reverse traction wire 13 in the wire groove 35. Similarly, the outer circumference of the right single propeller 24 is a wire groove 35, and the two wire fixing keys 26 fix the upper end of the right traction wire 22 and the other end of the reverse reverse traction wire 13 in the wire groove 35, respectively. Fig. 5 is a side view of the left single propeller 23, and in order to see the internal structure, Fig. 5 does not depict the outer annular cover 41. What we see is the base ring A face 37, and a sliding steel body 60 and a centrifugal force spring 59 are attached to each of the N steel sliding grooves 45 on the A side (Fig. 9). A sliding steel body 60 and a centrifugal force spring 59 are also attached to each of the N steel sliding grooves 45 of the base circle B surface 39 (Fig. 7).

The direct stepping rebounding device of the invention comprises: the straight stepping rebounding device is composed of a left straight rebounding device and a right straightening rebounding device. The two structures are the same, the same size, and symmetrical, so we will focus on the left-to-back bounce device to understand all. Referring to Figures 2 and 4, the upper portion of the left straight step 15 is located inside the left guide steel tube 1, and the straight step bar is held by two longitudinal rollers 16 at an appropriate distance and two horizontally rolling wheels 17 at an appropriate distance. There are two forms of scroll wheels: one is a single scroll wheel and the other is a double scroll wheel. The double scroll wheel can traverse the window 2 and roll up and down along the sides of the window; the diameter of the single scroll wheel is slightly smaller than the inner diameter of the guide steel tube, and the diameter of the double scroll wheel is also slightly smaller than the size between the corresponding inner walls. Above the upper welding fixed key 5 is an elastic washer 4, and on the upper part of the straight step bar, there is an easy loading and unloading heavy steel body 19 (Fig. 10), which is composed of a load steel body base member 54, a load steel body moving key 55 and a load steel body. The fixing screw 56 is formed. Both ends of the load steel body 19 extend out of the window from two corresponding windows 2. The energy storage spring 18 surrounds the guiding steel pipe 1 on the guiding steel pipe The two semi-cylindrical elastic pieces 3 (Fig. 11) are located between the two, and have two protective faces, one is an anti-paint film wear protection surface 58, and the other is an anti-window wear protection surface 57. The elastic piece 3 has sufficient elasticity to fasten the window wear protection surface 57 to the side of the window 2. The elastic piece 3 is easy to replace and can be replaced with a new one. At the lower end of the left and right straight pedals, there is a damper elastic piece 20, and the lower end of the left traction wire 21 bypasses the damper elastic piece 20 (close to the lower surface), and the upper end of the wire and the damper elastic piece are fixed together by the wire fixing key 25 Straightening the lower end of the rod or the ankle shaft (Fig. 4), the lower end of the right traction wire 22 bypasses the shock absorbing elastic piece 20 (close to the lower surface), and the upper end of the wire and the shock absorbing elastic piece are together with the wire fixing key 25. It is fixed on the lower end of the straight pedal or on the ankle shaft. In the present invention, a shock absorbing elastic piece may be disposed at the lower end of the left and right straight stepping rods, and the lower end of the left traction wire 21 is fixed to the lower end of the straight stepping rod or the ankle shaft by a wire fixing key, and the right traction wire is also The lower end is fixed to the lower end of the straight pedal or the ankle shaft by a wire fixing key.

The energy storage spring 18 has two forms: one is a pressure spring, as shown in Fig. 2 and Fig. 3; its upper end is under the hollow cover 7, and its lower end is located above the load steel body 19, and the spring is compressed when the energy is stored, rebounding When the spring stretches to release energy, the load steel body 19 is pushed downward; the second is a tension spring, the tension spring is located below the load steel body 19, the spring is stretched when the energy is stored, and the spring shrinks to release energy when rebounding; the left straight step 15 The lower end has a left ankle 64, the lower right end of the right straight lever 66 has a right ankle 65, and the upper ends of the left and right straight pedals each have a thread fixing button 14 for fixing the ends of the reversing traction wires 11 at both ends.

The reversing and traction device of the invention: the reversing and traction device comprises two left and right hollow covers 7, a pulley bracket 8, a load reversing pulley 10, a reversing pulley 12 (the load reversing pulley 10, the reversing pulley 12 can also be combined The second is a common reversing pulley), and the left and right nuts 9 for fixing the pulley bracket, see Figure 2. The internal thread of the lower part of the hollow cover 7 is called the lower thread, and the external thread of the upper end is called the upper thread. The lower threads of the right two hollow covers 7 are respectively screwed and fixed to the upper ends of the left and right guide steel pipes. The bottom of the pulley bracket 8 has two circular holes corresponding to the left and right upper threads. The diameter of the circular hole is larger than the outer diameter of the upper thread, so that it can be lowered to the bottom, and then the left and right nuts 9 are used to fix the pulley bracket. One end of the reversing traction wire 11 passes through the hollow of the left hollow cover 7, and the wire end is fixed by the wire fixing key 14 at the upper end of the left straight stepping rod 15, and the right end of the reversing traction wire 11 is wound around the overload reversing pulley 10, passing through the right The hollow of the hollow cover 7 is fixed by the upper end fixing key 14 of the right straight lever 66. The upper end of the left traction wire 21 is fixed in the wire groove 35 of the left single-propeller 23, and the lower end of the left traction wire bypasses the damper elastic piece 20, and the upper end of the wire and the damper elastic piece are fixed together by the wire fixing key 25. The upper end of the right traction wire 22 is fixed in the slot 35 of the right single propeller 24, and the lower end of the right traction wire bypasses the damper elastic piece 20, and the upper end of the wire and the damper elastic piece are fixed together by the wire fixing key. The left end of the reverse reverse traction line 13 is fixed in the slot 35 of the left single propeller, and the right end of the reverse reverse traction line 13 is fixed around the reversing pulley 12 in the slot 35 of the right single propeller. 4 is a schematic view of a reversing traction line, and the diameter of the reversing pulley 12 is enlarged for clarity.

Advantageous effects of the present invention

The straight-bounce bicycle of the invention comprises a direct-rebounding racing car, a direct-rebounding speed-shifting car, a straight-back bounce electric dual-purpose car, a straight-back bounce tricycle, and other vehicles manufactured by a straight-back bounce structure, and the advantages thereof are: high conversion efficiency, It is labor-saving, fast, and durable. It can exert its advantages when it encounters the wind and the uphill. Moreover, the structure of the bicycle is simple and easy to load and unload, which is conducive to maintenance and repair.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a direct-bounce bicycle according to the present invention, and the figure is a frame having a horizontal beam. 2 is a partial side elevational view of a portion of the straight-back rebound frame of the present invention and a straight-back bounce device, It is a frame without horizontal steel beams.

Fig. 3 is a partial front elevational view showing a partial and straight-back rebound structure of the direct-rebound frame of the present invention, and the figure is a frame without horizontal steel beams.

Figure 4 is a schematic illustration of the commutating traction circuit of the present invention. In order to clarify the traction line, this figure magnifies the diameter of the reversing pulley 12.

Figure 5 is a schematic illustration of the soft landing precision single propeller of the present invention. The soft landing precision single propeller is composed of a left single propeller 23 and a right single propeller 24 mounted on the left and right ends of the bicycle center shaft 27. The left and right single propellers have the same structure, the same size, and are symmetrical to each other. So this picture is drawn on the left single propeller. In order to see the internal structure, the outer annular cover 41 is not drawn.

Figure 6 is a schematic view showing the A side of the base ring of the left single propeller of the present invention.

Figure 7 is a cross-sectional view taken along line A-A of Figure 6 of the present invention.

Figure 8 is a side elevational view of the single pusher ring of the left single propeller of the present invention.

Figure 9 is a schematic view of a sliding steel body and a centrifugal force spring of the present invention.

Figure 10 is a schematic view of the easy-loading and unloading heavy steel body of the present invention.

Figure 11 is a schematic view of a semi-cylindrical wear-resistant elastic sheet (double) of the present invention.

Figure 12 is a partial enlarged view of the soft landing-precision precision single propeller of the present invention.

Figure 13 is a partial enlarged view of the soft landing of a soft landing precision single propeller of the present invention.

Figure 14 is a partial enlarged view of the soft landing perfect soft single landing propeller of the present invention.

Figure 15 Schematic diagram of the rolling friction of the left one-way thruster. The structure of the rolling friction of the right one-way thruster is the same as that of the left one-way thruster.

Figure 16 Two-in-one pulley bracket for square guide steel pipe, which will cover the pulley bracket 8 hollow cover 7 The function is combined into one.

Figure 17 is a side view of a two-in-one pulley bracket for a square-guided steel pipe.

detailed description

The invention will be further described in conjunction with the drawings, but without limiting the invention in any way. As shown in Fig. 1, Fig. 2, Fig. 3, and Fig. 4, the difference between the straight-bounce bicycle and the popular domestic bicycles at home and abroad is that the pedaling propulsion structure is used to replace the pedals of the conventional bicycle to make a circular motion propulsion structure. The reclining bicycle structure includes a bicycle handlebar, a bicycle front fork, a bicycle seat, and a bicycle wheel. The structure also includes a straight-back rebound frame, a soft landing precision single propeller, a straight-back rebound device, and a reversing and pulling device. .

The difference between the straight-back rebound frame and the various traditional bicycle frames is that the left and right sides of the frame have a left guide steel pipe 1 and a right guide steel pipe 1. The left and right guide steel pipes 1 are formed as a part of the frame by the upper welding fixing key 5 and the lower welding fixing key 30.

1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 13, 14, 15, 16, 17:

The difference between the straight-back rebound frame and the various conventional frames is that the left and right sides of the frame have left and right guiding steel pipes 1, and the left and right guiding steel pipes 1 are formed by the upper welding fixed key 5 and the lower welding fixed key 30. Part of the shelf. The upper welding fixed key 5 welds the left and right guiding steel pipe 1, the frame-seat steel pipe 6 into one body, and the lower welding fixed key 30 welds the left and right guiding steel pipe 1 and the frame-front oblique beam steel pipe 29 into one body, the frame - The middle shaft steel pipe 28 has a middle shaft 27 and a middle shaft rolling bearing, and two opposite windows 2 are respectively provided at the upper portion of the left and right guiding steel pipes 1, and a load carrying steel body 19 is provided at the upper portion of the left straight stepping rod 15, from the opposite Two windows extend out of the window, and there is a load steel body 19 on the upper right side of the straight pedal 66, from the opposite Two windows extend out of the window. The load steel body 19 moves up and down with the window as a rail, so that the left and right straight pedals also move up and down (inclined or vertical) in a predetermined direction. In order to prevent the side of the window 2 from being worn, a semi-cylindrical wear-resistant elastic piece 3 is mounted on the left and right sides of the opposite two windows (the groove-shaped wear-resistant elastic piece 3 is used when the square-guided steel pipe is used) 11). Since the elastic piece 3 has sufficient elasticity, it can be fastened to the left and right sides of the opposite two windows. The elastic piece 3 is easy to handle and replace, and it can be replaced after being worn.

The energy storage spring 18 is located at the periphery of the guide steel pipe and the two semi-cylindrical elastic sheets 3. The energy storage spring 18 has two forms: one is a pressure energy storage spring as shown in Fig. 2 and Fig. 3, the top end of which can be fixed on the hollow cover 7, and the pressure energy storage spring is located above the load steel body 19, during energy storage. The load steel body 19 compresses the energy storage spring. When rebounding, the spring stretches and releases energy, pushing the load steel body 14 to move downward. The second is a tension energy storage spring, which is located below the load steel body 19, and its lower end can be fixed on the upper welding fixed key 5, the spring is stretched when the energy is stored, and the spring shrinks to release energy when rebounding, and the load carrying steel body 19 is pulled downward. motion. On the upper side of the upper welding fixed key 5, there are two left and right elastic washers 4 which are respectively sleeved on the outer periphery of the left and right guide steel pipes, and when the left load steel body 19 moves downward and the left elastic washer 4 realizes a soft landing, the left straight stroke rod 15 The lower end of the ankle 64 reaches the lowest point, obviously it can fully bear the weight of the human body. Similarly, when the right load steel body 19 moves downward and the right elastic washer 4 achieves a soft landing, the ankle 65 of the lower right end of the right straight rod 66 reaches lowest point. The threads of the upper ends of the left and right guiding steel pipes are respectively tightened and fixed with the lower threads of the left and right hollow covers. The lower part of the pulley bracket 8 is composed of two circular holes corresponding to the left and right upper threads. The diameter of the circular hole is slightly larger than the outer diameter of the upper thread, so the two round holes can be lowered to the bottom of the left and right upper threads, and then two fixed nuts are used. 9 tighten and fix separately. The load-reversing pulley 10 and the reversing pulley 12 are mounted on the pulley bracket above the left and right guiding steel tubes, which are simple and reasonable, and are convenient for maintenance, repair and loading and unloading. In the present invention, the guide steel pipe 1 which can be processed by the square steel pipe is also called a square guide steel pipe, and the square guide steel pipe is equipped with a two-in-one pulley bracket, which combines the two functions of the pulley bracket 8 hollow cover 7 into one. Figure 16 is a schematic view of the two-in-one pulley bracket, and Figure 17 is a side view of the two-in-one pulley bracket. The left and right two generations of hollow covers 72 located at the lower part of the two-in-one pulley bracket are respectively inserted into the upper ends of the left and right guiding steel pipes 1, And close to the inner wall of the outer side surface of the square guiding steel pipe, and the fixing hole is inserted through the corresponding circular hole of the upper end of the square guiding steel pipe to be screwed and fixed with the screw hole on the generation hollow cover 72.

In the background art, the key to success or failure of a bicycle is whether it can solve the frequent noise generated by the idling impact and the frequent vibration that the rider cannot adapt. This problem is not solved as if building a tall building on the beach, and it is bound to fail. . The soft landing precision single propeller achieves shock and noise prevention and successfully solves this technical problem. The soft landing precision single propeller is composed of a left precision single propeller 23 and a right precision single propeller 24 attached to the left and right ends of the center shaft 27. The left and right precision single propellers have the same structure, the same size, and are symmetrical to each other. So we can understand all about the structure of the left precision single propeller. The core of the left precision single propeller is the inner ring and the outer ring, the inner ring is called the base ring, the outer ring is called the single push ring, the base ring is double-sided, and the outer ring is called the base ring A face 37, the inner side. It is called the base ring B surface 39, and each of the A surface and the B surface has N steel body sliding grooves 45. Each of the steel body sliding grooves has a sliding steel body 60 and a centrifugal force spring 59 (Fig. 9). N+1 or N-1 single-propelled grooves 48 are evenly distributed on the inner circle of the single push ring (Fig. 8). One side of the groove is a slope called a single-propelled groove slope 50, and the other side of the groove is called a single propulsion. The trough carries a heavy surface 49. The bottom surface of the single thrust groove is a soft landing elastic body 51. The elastic body 51 has two important elastic faces, one is a tangential elastic surface 52 and the other is a centrifugal elastic surface 53. The soft landing elastic body 51 is easily replaceable, and the old soft landing elastic body 51 is taken out from the side surface, and the new soft landing elastic body can be pushed in from the side. The outer circumference of the single push ring is a wire groove 35. The central area of the base ring is a shaft hole 47 and a positioning platform 46, which are respectively matched with the center shaft 27 and the center shaft positioning groove 31 (of course, the key pin can also be used to make the middle The shaft 27 is precisely matched with the shaft hole 47, and then tightened and fixed by a fixing screw 34. This structure is convenient for loading and unloading. Two wire ends are fixed in the wire groove 35 of the left precision single propeller by two wire fixing keys 26, one being the upper end of the left traction wire 21 and the other being the left end of the reverse rotation pulling wire 13. Also in the slot 35 of the right precision single propeller 24, two thread ends are used to secure the two ends, one is the upper end of the right traction wire 22, and the other is the reverse reverse traction line after bypassing the diverting pulley 12. The right end of 13. The lower end of the left traction wire 21 is fixed to the lower end of the left straight step 15 or the ankle shaft. The lower end of the right traction wire 22 is fixed to the lower end of the right straight step 66 or to the ankle shaft.

In the present invention, there are two types of friction modes for the inner ring and the outer ring of the soft landing precision single propeller, namely sliding friction and rolling friction.

As shown in FIG. 5 and FIG. 8, the soft landing precision one-way thruster outer ring 71 and the inner ring 70 are in a sliding friction manner, and on the inner side of the left single propeller, there is an inner annular cover 40, and the inner annular cover is circumferential. There is a fine thread on the thread, which is matched with the fine thread corresponding to the one-way push ring. The outer side of the left single propeller has an outer annular cover, and the outer annular cover has a fine thread around it, which corresponds to the single push ring. The thread is matched and tightened; then the outer ring 71, the inner annular cover 40 and the outer annular cover 41 are combined and fixed integrally, and the central annular hole of the inner annular cover and the central circular hole of the outer annular cover respectively form a sliding friction with the circle corresponding to the inner ring. The structure of the right single propeller sliding friction is the same as that of the single propeller. As shown in FIG. 15, the soft landing precision one-way thruster outer ring 71 and the inner ring 70 are in rolling friction mode, and the m annularly distributed steel balls 67 are located on the circumference of the outer annular cover 41 and the corresponding outer ring 71. Between the inner circles, the circular hole in the central portion of the outer annular cover 41 is a screw hole, and the corresponding inner ring 70 The screw 69 is screwed and fixed, and there are also m annularly distributed steel balls 67 between the circumference of the inner annular cover 40 and the inner circle of the corresponding outer ring 71. The circular hole in the central portion of the inner annular cover 40 is a screw hole, which corresponds to The screw 69 of the inner ring 70 is screwed and fixed, so that the ring 70 in the outer annular cover 41 of the inner annular cover 40 is combined and fixed integrally. When the outer ring 71 is inverted, the inner and outer two sets of annularly distributed steel balls 67 are in the respective circular orbits. Rolling, forming rolling friction.

In order to achieve shock and noise prevention, the idling distance must be minimized. According to the design of Figure 5, the idling distance varies between 0 and 0.6 mm, and the average value is 0.3 mm. The ability to achieve such a good result comes from two structural features:

1. N: N+1 or N-1 structure. On the A side or the B side of the precision single propeller, if the number of the steel sliding grooves 45 is N, the number of the single propulsion grooves 48 is N+1, if a single item The number of the advancement grooves 48 is N, and the number of the steel body sliding grooves 45 is N+1. The former is more precise than the latter. It can be proved that the N: N+1 structure is simple and reasonable, and the idling distance (arc length) is the smallest. N Small idling distance is large, N large idling distance is small but bulky and weight increases. The drawing is drawn as N=12.

2. The double-sided structure of the soft landing precision single propeller, the A-side B-side steel body sliding groove has the same number and the same structure, but the A-side B-plane is different by an angle, and the corresponding arc length on the basic circumference is one-sided. One-half of the maximum idle distance. For example, Figure 5 is the precision single-propeller A side, and the maximum idle distance on the A side is 1.2 mm. The B face of the A face is at an angle which corresponds to an arc length of 1.2 mm on the base circumference which is 0.6 mm. When the idling distance of the A side is at most 1.2 mm, the idling distance of the B surface is 0.6 mm, and when the idling distance of the B surface is at most 1.2 mm, the idling distance of the A surface is 0.6 mm. This means that the A side B side is applied at the same time, the idling distance varies between 0 and 0.6 mm, and the average idling distance is 0.3 mm. The distance from the lowest point to the highest point of the ankle is called the full stroke. As the body fatigue increases as the knee bending angle increases. The structure of the straight-bounce bicycle is beneficial to compressing the whole stroke, and the bending angle of the knee joint is small, so the physical exertion is labor-saving. We divide the full stroke into two segments from the middle, the upper segment is called the upper stroke, and the lower segment is called the lower stroke. Obviously, the upper stroke is in the most labor-saving zone. When the left ankle enters the most labor-saving zone, the physical force F on the ankle is divided into four roads, the first road is transformed into the lower stroke forward driving force, and the second road F _{2 is} stored on the right energy storage spring 18, the third road F ₃ pulls the right foot up, and the fourth road F ₄ pulls the right precision single propeller outer ring to reverse. When the left ankle 64 reaches the lowest point, the right ankle 65 rises to the highest point. At this moment, the right energy storage spring 18 bounces and releases the energy to be converted into the upper stroke forward driving force (the right foot moves downward only requires a small force to pull the left The foot moves upwards, pulling the left single item to push the ring backwards). When the right ankle 65 enters the most labor-saving zone, the physical force F on the right ankle is divided into four. The first road is converted into the driving force of the lower stroke, the second road F ₂ stores energy to the left energy storage spring, the third road pulls the left foot upward, and the fourth road F ₄ pulls the left precision single propeller outer ring to reverse, when the right foot When the 蹬65 reaches the lowest point, the left ankle 64 reaches the highest point, and the left energy storage spring 18 starts to bounce and release the energy to transform into the upper stroke forward driving force. (The left foot moves downwards and only needs a small force to pull the right foot upwards. Movement, pulling the right single item to push the ring to reverse), when the left ankle 64 enters the most labor-saving area, the physical force F on the ankle 64 is divided into four roads ^+ ₊ +, so the cycle, the rebound structure will focus on the most effort District, so the pedaling bike is fast, labor-saving and durable. In Fig. 3, Fig. 4, Fig. 12, Fig. 13, and Fig. 14, when the right ankle 65 reaches the lowest point, the left ankle 64 rises to the highest point, the left energy storage spring starts to rebound, and the left side of the left straight rod 15 is shock absorbing. The elastic piece 20 converts the rebound impact force into a cushioning force by pulling the left single-strength push ring through the left traction wire 21 to change from a reverse rotation to a forward rotation to prepare a soft landing. Although the duration of the cushioning force is only a moment, within this instant, the tangential direction of the elastic surface 52 and slip The idling distance between the moving steel soft landing surfaces 61 is shortened from 0 to 0.6 mm (according to the design of Fig. 5) to a distance of 0, and the soft landing begins (Fig. 13). In the process in which the elastic tangential direction of the elastic body is compressed, the single thrust groove load surface 49 and the sliding steel load surface 62 shorten the distance between them at the same speed, and finally the butt joint is realized. The soft landing is now complete (Figure 14). After the soft landing, the pressure applied to the elastic surface of the tangential direction of the elastic body is no longer increased, and since the pressure applied by the soft landing elastic body 51 is limited, the service life is long. The elastic centrifugal direction elastic surface 53 converts the centrifugal direction impact force of the sliding steel body 60 into a soft landing. As the single thrust ring is reversed, the centripetal force generated by the interaction of the single thrust groove inclined surface 50 and the sliding steel body curved surface 63 forces the sliding steel body 60 to return. Inside the steel body sliding groove 45. Since the sliding steel body load surface 62 is located at the bottom of the groove, no slippage occurs after docking, which provides support for the normal operation of the straight-back bounce propulsion structure.

Using the straight-bounce bicycle of the present invention: the soft landing precision single propeller converts the linear motion of the left and right ankles into the rotation of the middle shaft 27 in the forward direction, and the chain gear 42 fixed on the central shaft 27 advances the rear wheel through the chain, thereby realizing The invention has the advantages of high conversion efficiency, labor saving, high speed and long lasting.

Claims

Claim

1. A reclining bicycle, the structure comprising a bicycle handlebar, a bicycle front fork, a bicycle seat, and a bicycle wheel, wherein: the structure further comprises: a straight-back rebound frame, a soft landing precision single propeller, and a straight Stepping on the rebound device, as well as the reversing and pulling device.

2. The pedal-bounce bicycle according to claim 1, wherein: the straight-back rebound frame has a left-direction guide steel pipe (1) and a right-direction guide steel pipe (1) on both sides of the frame, and the left and right guide steel pipes pass through. The upper welding fixed key (5) and the lower splicing fixed key (30) become part of the straight-back bounce bicycle frame, and the upper welding fixed key (5) guides the left and right steel pipes (1) and the frame-seat steel pipe (6) ) Welded and fixed as one, the lower welding fixed key (30) splicing and fixing the left and right guiding steel pipe (1) and the frame-front oblique beam steel pipe (29); the frame-shaft steel pipe (28) has a central axis inside (27) and the central axis rolling bearing, there are two opposite windows (2) on the upper part of the left and right guiding steel pipes (1). The windows have the same shape, the same size and the same height. The two windows (2) are 180° apart. The upper and lower guide pipes (1) are threaded at the upper ends, and they are respectively fitted with the lower threads on the left and right hollow covers (7), and are fastened and fixed.

3. The step-bounce bicycle according to claim 1, wherein: the straight-back rebound frame has a left-direction guide steel pipe (1) and a right guide steel pipe (1) on both sides of the frame, wherein the guide steel pipe is Square guide steel pipe, square guide steel pipe with two-in-one pulley bracket, left and right guide steel pipe through the upper welding fixed key (5), the lower welding fixed key (30) becomes a part of the straight-back bounce bicycle frame, and the welding fixed key ( 5) Weld and fix the left and right guide steel pipes (1) and the frame-seat steel pipe (6) together, and weld the fixed keys (30) to guide the left and right steel pipes (1) and the frame-front oblique beam steel pipes (29). The welding is fixed in one piece; the frame-shaft steel tube (28) has a central shaft (27) and a central shaft rolling bearing. There are two opposite windows (2) on the upper part of the left and right guiding steel tubes (1). The shapes are the same, the dimensions are the same, the height is the same, the two windows (2) are 180° apart; the lower part of the two-in-one pulley bracket is provided with two left and right hollow covers (72), and two generations of hollow covers (72) are inserted respectively. The upper end of the left and right guide steel pipe (1), and the square Against the inner wall of the outer side surface of the steel pipe (1), the upper end of the guide through the square steel pipe corresponding to the generation of circular hollow cap (72) with the fixing screws The screw holes on the top are tightened and fixed.

4. A reclining bicycle according to claim 1 or 2 or 3, characterized in that the soft landing precision single propeller is propelled by a left single propeller (23) mounted on the bicycle center shaft (27) and a single single item. The device (24) is composed of the left and right single propellers having the same structure, the same size, and the left and right symmetry; the left and right single propeller structures are the inner ring and the outer ring, and the inner ring is called the base ring, and the outer ring is called the outer ring. The single push ring, the base ring is a double-sided structure, the outer side is called the base ring A face (37), the inner side is called the base ring B face (39), and the A face and B face each have N steel body sliding grooves ( 45), the A-side and B-side steel sliding grooves have the same structure, the same size and the same distribution, and the A and B faces can be staggered by an angle; the inner circle of the single push ring has N+1 or N-1 evenly distributed The single propulsion groove (48), one side of the single propulsion groove (48) is a slope, which is a single propulsion groove slope (50), and the other side is a single propulsion groove load surface (49), a single propulsion groove (48) The bottom has a soft landing elastomer (51), soft The elastic body (51) has two elastic faces, one is a tangential elastic surface (52), the other is a centrifugal elastic surface (53), the soft landing elastic body (51) is replaceable, and the old soft landing elastic body (51) Pulling out from the side, the new soft landing elastomer (51) is pushed in from the side; the outer ring of the left single propeller is the wire groove (35), and the two wire fixing keys (26) will be the upper end of the left traction wire (21) and One end of the reverse reverse traction line (13) is fixed in the wire groove (35), and the outer ring of the right single thruster (24) is the wire groove (35), and the two wire fixing keys (26) will be the right traction wire ( The upper end of the 22) and the other end of the reverse reverse traction line (13) are respectively fixed in the wire groove (35); one sliding steel is installed in each of the N steel sliding grooves (45) of the base ring A face (37) Body (60) and a centrifugal force spring (59), and a sliding steel body (60) and a centrifugal force spring (59) are also installed in the N steel sliding grooves (45) of the base ring B surface (39). ).

5. The pedaling bicycle according to claim 4, wherein: the central portion of the soft landing precision single propeller has a shaft hole (47), a positioning platform (46) and a center shaft (27), and a set screw (34). ) Through the round hole (33), it can be tightened and fixed with the screw hole on the middle shaft, or it can be equipped with a key pin structure. Fixed.

6. The reclining bicycle according to claim 4, wherein: the central portion of the soft landing precision single propeller is a square hole (68), the outer square hole has a small size, and the inner square hole has a large size. It is called a truncated cone (68), which is matched with the corresponding square cone on the center shaft (27) and then screwed and fixed.

7. The pedaling bicycle according to claim 4, wherein: the soft landing precision one-way thruster outer ring (71) and the inner ring (70) are in a sliding friction manner, and the left single item is The inner side of the propeller has an inner annular cover (40), and the inner annular cover has a fine thread on the circumference thereof, which is screwed and fixed with the fine thread corresponding to the single push ring, and the outer side of the left single propeller has an outer annular cover, the outer ring There is a fine thread around the cover, which is matched with the fine thread corresponding to the single push ring, and is tightly fixed; then the outer ring (71), the inner annular cover (40) and the outer annular cover (41) are combined and fixed together, and the inner ring is The circular hole at the center of the cover and the circular hole at the center of the outer annular cover respectively form a sliding friction with the circle corresponding to the inner ring, and the structure of the sliding friction of the right single thruster is the same as that of the single thruster.

8. The pedaling bicycle according to claim 4, wherein: the soft landing precision one-way thruster outer ring (71) and the inner ring (70) adopt rolling friction mode, m rings The distributed steel ball (67) is located between the circumference of the outer annular cover (41) and the inner circle of the corresponding outer ring (71), and the circular hole of the central portion of the outer annular cover (41) is a screw hole, and the corresponding inner circle The screw (69) of the ring (70) is screwed and fixed, and there are also m annularly distributed steel balls (67) between the circumference of the inner annular cover (40) and the inner circle of the corresponding outer ring (71), and the inner annular cover ( 40) The hole in the center area is a screw hole, which is screwed with the corresponding inner ring (70) screw (69), so the inner ring cover (40) outer ring cover (41) inner ring (70) combination Fixed in one piece, when the outer ring (71) is reversed, the inner and outer two sets of annularly distributed steel balls (67) roll in their respective circular orbits to form rolling friction.

9. The pedaling bicycle according to claim 1, wherein: the direct stepping rebounding device is composed of a left straight pedaling device and a right straight pedaling device, and the left straight pedaling device and the right straight pedaling device are The structures are the same, the dimensions are the same, and they are symmetrical. The upper part of the left straight pedal (15) in the left straight rebounding device is located inside the left guiding steel pipe (1), and the left straight sliding bar has two longitudinal rolling wheels which are kept at an appropriate distance (16). And two horizontal scroll wheels (17) that maintain the proper distance. The scroll wheel has two forms: one is a single scroll wheel, and the other is a double scroll wheel; the double scroll wheel can be scrolled up and down the window (2) The diameter of the single rolling wheel is slightly smaller than the inner diameter of the guiding steel pipe, and the diameter of the double rolling wheel is also slightly smaller than the size between the corresponding inner wall; the upper welding fixing key (5) has a resilient washer (4) above it, in the straight pedal The upper part has an easy-loading and unloading heavy steel body (19), which is composed of a load-bearing steel body base member (54), a load-bearing steel body moving key (55) and a load-bearing steel body fixing screw (56), and two of the load-bearing steel body (19). The end protrudes out of the window from two corresponding windows (2); the energy storage spring (18) surrounds the guiding steel tube (1) on the upper part of the guiding steel tube, and the two semi-cylindrical elastic pieces (3) are located between the two, the elastic piece ( 3) There are two protective surfaces, one is anti-paint film grinding Protective surface (58), second, anti-window wear protection surface (57), elastic sheet (3) has sufficient elasticity, and the anti-window wear protection surface (57) is fastened to the side of the window (2); 21) Fix the wire end on the lower end of the straight pedal or the pedal shaft with the wire fixing button (25), and fix the wire end to the lower end of the straight pedal with the wire fixing button (25) at the lower end of the right traction wire (22). Or on the ankle shaft, fix the upper end of the left traction wire (21) to the wire groove (35) of the left single thruster (23) with the wire fixing key (26), and use the wire fixing key (26) to fix the right wire. The upper end of (22) is fixed in the slot (35) of the right single propeller (24); the energy storage spring (18) has two forms: one is a compression spring, the upper end of which is under the hollow cover (7), The lower end is located above the load steel body (19), the spring is compressed when the energy is stored, the spring is stretched to release the energy when rebounding, and the second is the tension spring. The tension spring is located below the load steel body (19), and the spring stretches when the energy is stored. When the spring is contracted to release energy; the lower end of the left straight step (15) has The lower end of the pedal (64), the right pedal straight rod (66) has a right foot (65).

10. The pedaling bicycle according to claim 1, wherein: the reversing and pulling device comprises two left and right hollow covers (7), a pulley bracket (8), a load reverse pulley (10), and a reversing pulley. (12), And the left and right nuts (9) for fixing the pulley bracket; the lower internal thread of the hollow cover (7) is called the lower thread, the upper external thread is called the upper thread, and the left and right hollow covers (7) are respectively guided to the left and right. The threaded end of the upper end is screwed and fixed. The bottom of the pulley bracket (8) has two round holes, which correspond to the left and right upper threads. The diameter of the round hole is larger than the outer diameter of the upper thread, and can be lowered to the bottom. (9) Fix the pulley bracket, one end of the reversing traction wire (11) passes through the hollow of the left hollow cover (7), and fix the thread with the thread fixing button (14) at the upper end of the left straight pedal (15). The right end of the traction wire (11) is wound around the overload reversing pulley (10), through the hollow of the right hollow cover (7), and the upper end of the right straight rod (66) is fixed (14) to fix the thread, reverse the reversing The left end of the traction line (13) is fixed in the slot (35) of the left single propeller, and the right end of the reverse reverse traction line (13) bypasses the reversing pulley (12) and is fixed to the slot of the right single propeller (35) ).

The step-bounce bicycle according to claim 11, wherein the load-reversing pulley is composed of a load-reversing pulley (10) and a reverse pulley (12).

The step-bounce bicycle according to claim 11, wherein the load-reversing pulley combines the load-reversing pulley (10) and the reverse pulley (12) into one.

13. The step-bounce bicycle according to claim 4, wherein the inner ring (70) has a single-sided structure, that is, a side A or a side B.