A type of eco-friendly walking-driven bicycle shoe for transportation

Abstract

An eco-friendly walking-driven bicycle shoe for transportation has a universal wheel installed at the rear end of a support (1), and a swing arm (4) hinged at the front end of the support (1), with its free end generally pointing backward. The swing arm (4) consists of an outer arm (4-1), an inner arm (4-2), and a crossbeam (4-3). A front pulley (5) is hinged at the free end of the swing arm (4). A transmission mechanism is provided that uses the weight of the human body as the driving force and utilizes the swing of the free end of the swing arm (4) to drive the drive wheel (5-1) to rotate. The outer arm (4-1) and the inner arm (4-2) are respectively positioned... On both sides of the support (1), the swing arm (4) can swing up and down on both sides of the support (1). The swing trajectory of the front pulley (5) axis is set near the support (1) corresponding to the center point of the foot's force. This reduces the height off the ground to an ideal value and improves safety. At the same time, it makes the center of gravity of the front pulley (5) close to the foot, increases the fit with the foot, and facilitates foot control. When stepping, it automatically applies an upward counter-force to the foot and heel, which can flexibly control the direction. The braking action is natural and comfortable, and it can brake safely and effectively in any walking state.

Description

Technical Field

[0001] This invention relates to a type of mobility shoe, and more particularly to a natural walking-driven bicycle shoe for transportation. Background Technology

[0002] Currently, the main mode of transportation driven purely by human power is the bicycle, which is relatively energy-efficient and significantly increases travel speed. However, the power generation methods for cycling and walking are not compatible, and many muscle groups cannot be effectively engaged in cycling; both hands are required to control direction and maintain balance; cycling is not as natural and comfortable as walking; in addition, cycling can have some adverse effects on local blood circulation; the movement of the feet while cycling is similar to climbing a hill, but it is only equivalent to stepping in place and cannot generate the speed of gliding or walking; bicycles are relatively heavy and bulky, requiring more extra energy to operate; furthermore, the energy loss of the bicycle's chain drive system is relatively large. Ice skates can be used for gliding in specific situations, but their power generation method is completely different from walking. They require a push-off to the side and rear, gliding in curves, which is unsafe. When gliding at high speeds, the leg's push-off speed must exceed the current gliding speed, resulting in significant energy loss. When the foot leaves the ground, it must overcome the weight of the ice skate, placing a heavy load on the legs. In particular, the braking action of ice skates is extremely unnatural, further greatly affecting their safety. They also lack shock absorption. Therefore, ice skates are generally only suitable for recreational and fitness purposes in specific situations and cannot be used for transportation. Currently, there are some assistive skates that can use body weight for propulsion, but these do not closely resemble walking, resulting in unnatural walking and difficulty in achieving high speeds. On December 14, 2019, I filed a patent application entitled "Bicycle Shoe" with application number CN2019112873590. It includes an upper and a sole 1. A base plate 2 is fixedly connected to the bottom of the sole 1. A rear pulley 4 is located at the rear end of the base plate 2, and a front pulley 5 is located at the front end of the base plate 2. The key feature is that the front pulley 5 is fixedly mounted on a front axle 6. The front axle 6 is hinged to the front end of a front swing arm 8 via a bearing 7. The rear end of the front swing arm 8 is hinged to the base plate 2 via a small shaft 21. A torsion spring 9 connects the front swing arm 8 and the base plate 2, and the force of the torsion spring 9 causes the front end of the front swing arm to swing downwards. Furthermore, a drive mechanism is provided that uses the displacement of the front end of the front swing arm 8 relative to the base plate 2 to drive the front axle 6 and the front pulley 5. It adopts a comfortable, walking-like power generation method, enabling straight-line gliding, significantly reducing energy loss while greatly increasing forward speed. The main disadvantages are: 1. The front pulley 5 and the rear pulley 4 are located below the base plate 2, which is high off the ground, resulting in poor safety. In addition, the fit between the skates and the feet is not good, making it difficult for the feet to control the skates. 2. The structure of the rear pulley 4 and the braking system, which are connected to the base plate 2 through the rear swing arm 16 and the compression spring 17, is relatively complex, especially making it difficult to control the gliding direction flexibly. 3. The soles are fixed to the base plate 2, so the skates cannot be changed at will. In particular, the fit between the skates and the feet is poor, giving the feeling of walking in a hard-soled shoe without elasticity. Invention Overview

[0004] Technical issues

[0005] Therefore, the purpose of this invention is to provide an eco-friendly walking-driven cycling shoe for transportation, capable of propelling itself by natural walking force, fully converting the potential and kinetic energy lost during walking into gliding kinetic energy, superimposing walking and gliding speeds to significantly increase forward speed, while reducing impact and wear on the knee joints, and allowing for flexible control of gliding direction. Furthermore, while lowering the shoe's ground clearance and improving safety and comfort, it also enhances the fit between the shoe and the foot, facilitating foot control. Another objective of this invention is that, during stride, as the height of the forefoot and heel changes streamlined with each step, the front and rear ends of the shoe consistently apply upward counter-force to the forefoot and heel, making stride extremely easy. A further objective of this invention is to ensure that the shoe does not compromise the fit and comfort between the shoe and foot, and that the shoe can be easily and quickly attached or detached. A further objective of this invention is to make the braking action extremely natural and comfortable, and to enable timely and effective safe braking in any driving state, so that this invention can be used as a primary means of transportation.

[0006] Solution to the problem

[0007] Technical solutions

[0008] To achieve the above objectives, the technical solution of the present invention is: to provide an eco-friendly walking-driven bicycle shoe for transportation, which includes a support 1, a front pulley 5 hinged to the front end of the support 1, and a rear pulley 2 hinged to the rear end of the support 1, characterized in that: the rear pulley 2 is a universal wheel that can adjust its direction according to the swing of the heel.

[0009] At the front end of the bracket 1, a swing arm 4 is hinged to a horizontally arranged swing arm shaft 3;

[0010] The swing arm 4 consists of an outer arm 4-1 and an inner arm 4-2 located on both sides of the bracket 1, and a crossbeam 4-3 connecting the outer arm 4-1 and the front end of the inner arm 4-2 and fixing the outer arm 4-1 and the inner arm 4-2 into a whole. The outer arm 4-1 is located on the outer side of the foot, and the inner arm 4-2 is located on the inner side of the foot.

[0011] A limiting member is provided between the swing arm 4 and the bracket 1 to allow the free end of the swing arm 4 to swing only within a limited angle range;

[0012] The free end of the swing arm 4, which swings within the angle range defined by the limiting member, generally points backward.

[0013] A front pulley 5 is hinged to the free end of the inner arm 4-2 via a pair of passive wheel bearings 7 and a passive shaft 8, and the front pulley 5 hinged to the free end of the inner arm 4-2 is set as the passive wheel 5-2;

[0014] A pair of drive wheel bearing sleeves 4-5 are provided at the free end of the outer arm 4-1, with their axial direction perpendicular to the length direction of the outer arm 4-1;

[0015] A pair of drive wheel bearings 9 are installed inside the drive wheel bearing sleeve 4-5;

[0016] A drive shaft 10 is installed inside the drive wheel bearing 9, and the drive shaft 10 is coaxial with the driven shaft 8.

[0017] A front pulley 5 is fixedly connected to the drive shaft 10, and the front pulley 5 fixedly connected to the drive shaft 10 is set as drive wheel 5-1;

[0018] Between the outer arm 4-1 and the bracket 1, there is a transmission mechanism that uses the swing of the free end of the swing arm 4 relative to the bracket 1 within a limited angle range to drive the drive wheel 5-1 to rotate, and uses the weight of the human body as the driving force.

[0019] The free end of the swing arm 4, the drive wheel 5-1, and the driven wheel 5-2 can swing up and down on both sides of the bracket 1;

[0020] Therefore, the minimum ground clearance of the bottom of the bracket 1 can be reduced to an ideal value, greatly improving sliding safety and comfort;

[0021] Furthermore, the minimum vertical distance between the swing trajectory of the front pulley 5 axis along the length of the support 1 and the support 1 corresponding to the center point of force on the foot (for ease of description, the center point of force on the foot when bearing weight is referred to as the center point of force on the foot below) (i.e., the longitudinal distance between the front pulley 5 axis and the center point of force on the foot when the axis swings to be closest to the center point of force on the foot) can be set within a preferred range of 0-5 cm. More preferably, it can be set to a value close to 0, so that the center of gravity of the front pulley 5 is close to the center point of force on the foot, increasing the fit between the original ecological walking-driven bicycle shoe of the present invention for transportation and the foot, and facilitating the foot's control over the original ecological walking-driven bicycle shoe of the present invention for transportation.

[0022] Preferably, a reference plane parallel to the bottom of the bracket 1 and coinciding with the axis of the swing arm shaft 3 is used as the bisecting plane of the swing trajectory of the front pulley 5 axis. This maximizes the weight acting on the free end of the swing arm 4 and the vertical component force applied to the free end of the swing arm 4, thereby reducing frictional resistance and energy loss, and more fully converting gravitational potential energy into the forward kinetic energy of the drive wheel 5-1.

[0023] Preferably, the bracket 1 adopts a frame structure, consisting of a front beam 1-1 located in front of the toe, a rear beam 1-2 located behind the heel, an outer longitudinal beam 1-3 located on the outer side of the foot, an inner longitudinal beam 1-4 located on the inner side of the foot, and a rear cross plate 1-5 connected between the rear ends of the outer longitudinal beam 1-3 and the inner longitudinal beam 1-4 for mounting the rear pulley 2;

[0024] A pair of coaxial front bearing sleeves 1-6 are provided at the front ends of the outer longitudinal beam 1-3 and the inner longitudinal beam 1-4.

[0025] A front bearing 6 is provided inside the front bearing sleeve 1-6;

[0026] At one end of the outer arm 4-1 and the inner arm 4-2 near the crossbeam 4-3, there is a pair of coaxial shaft holes 4-4 that are adapted to the swing arm shaft 3;

[0027] The swing arm shaft 3 passes through the shaft hole 4-4 and the front bearing 6 to hinge the swing arm 4 to the front end of the bracket 1;

[0028] A pair of passive wheel bearing sleeves 4-6 are provided at the free end of the inner arm 4-2, with their axial direction perpendicular to the length direction of the inner arm 4-2;

[0029] A pair of passive wheel bearings 7 are installed inside the passive wheel bearing sleeve 4-6;

[0030] A passive shaft 8 is installed inside the passive wheel bearing 7;

[0031] A driven wheel 5-2 is fixedly connected to the driven shaft 8;

[0032] A torsion spring 11 is fitted onto the swing arm shaft 3;

[0033] The two ends of the torsion spring 11 are connected between the free end of the swing arm 4 and the front end of the bracket 1;

[0034] The force of the torsion spring 11 tends to cause the free end of the swing arm 4 to swing downward;

[0035] Therefore, when taking a step, under the upward counter-force exerted by the torsion spring 11 on the front end of the support 1 through the swing arm 4, the height of the foot off the ground changes in a streamlined manner as the foot moves forward. The front end of the support 1 can always exert an upward counter-force on the foot, making taking a step extremely easy.

[0036] Preferably, a foot pedal 12 is provided inside the bracket 1;

[0037] A transverse reinforcing plate 1-7 is provided between the bottom of the outer longitudinal beam 1-3 and the bottom of the inner longitudinal beam 1-4, at the point corresponding to the center point of force on the foot in the length direction of the foot.

[0038] Two pairs of coaxial bushings 1-8 are provided on the transverse reinforcing plate 1-7, and the axis of the bushings 1-8 corresponds to the center point of the force on the foot in the length direction of the sole.

[0039] At the bottom of the foot pedal 12, at the center point of force on the sole of the foot along the length of the foot, there is a pair of sliding bearings 12-1 that correspond to the bushings 1-8 respectively.

[0040] A pair of coaxial transverse small shafts 13 pass through the bushing 1-8 and the sliding bearing 12-1 respectively to hinge the foot pedal 12 to the bracket 1;

[0041] A wear-resistant plate 14 is installed at the rear end of the bottom of the foot pedal 12, and the rear end of the foot pedal 12 can swing downwards so that the wear-resistant plate 14 touches the ground;

[0042] A load-bearing return spring 16 is connected between the foot pedal 12 and the bracket 1;

[0043] When the load-bearing return spring 16 is subjected to force, it tends to cause the rear end of the foot pedal 12 to move upward;

[0044] During gliding, the load-bearing return spring 16 is used to bear the weight of the foot acting on the rear end of the support 1 through the heel, and has a good shock absorption function.

[0045] Furthermore, when stepping forward, as the heel's height from the ground changes in a streamlined manner with each step, the rear end of the foot pedal 12 always applies an upward counter-force to the heel, making stepping extremely easy.

[0046] When the weight exceeds the preset bearing range of the load-bearing return spring 16, it acts on the rear end of the foot pedal 12 through the heel. The rear end of the foot pedal 12 will swing downward until the wear-resistant plate 14 touches the ground, and the automatic brake will be applied.

[0047] Therefore, during normal walking, when the force is evenly distributed between the ball of the foot and the heel, or when the force is entirely distributed by the ball of the foot, the wear-resistant plate 14 will not touch the ground 28 under the spring force of the load-bearing return spring 16.

[0048] If deceleration or braking is required, when the weight is concentrated on the heel, the rear end of the foot pedal 12 swings downward against the load-bearing return spring 16 until the wear-resistant plate 14 touches the ground, automatically braking. This makes the braking action extremely natural and comfortable, and can brake safely and effectively in any state of travel. When stationary, it can stand steadily in place and can smoothly step up stairs (concentrating the weight on the heel, with the wear-resistant plate 14 directly touching the ground). This makes the invention suitable for use as a primary means of transportation.

[0049] Preferably, a slot 12-2 is provided at the bottom rear end of the foot pedal 12;

[0050] A wear-resistant sheet 14 is embedded in the slot 12-2;

[0051] At the rear end of the slot 12-2, a protruding edge 12-3 is provided to prevent the wear-resistant piece 14 from sliding out of the slot 12-2;

[0052] Tail rods 1-3-2 and 1-4-1 are respectively formed upwards at the rear ends of the outer longitudinal beam 1-3 and the inner longitudinal beam 1-4.

[0053] The load-bearing return spring 16 consists of several rubber tension springs connected between the rear end of the foot pedal 12 and the top of the tail rods 1-3-2 and 1-4-1.

[0054] Preferably, a locking device for securing the shoe to the foot pedal 12 is also provided on the foot pedal 12;

[0055] The locking device includes two retaining rings 12-4 disposed on one side of the foot pedal 12;

[0056] A strap 15 is connected to the fixing ring 12-4;

[0057] The strap 15 is provided with self-adhesive Velcro;

[0058] On the other side of the foot pedal 12, a positioning ring 12-5 corresponding to the fixing ring 12-4 is provided;

[0059] Thus, when the free end of the strap 15 passing through the positioning ring 12-5 is pulled tight and folded back, and the self-adhesive Velcro on the strap 15 is glued together, the purpose of quickly binding the shoe to the foot pedal 12 is achieved.

[0060] Similarly, the shoes can be easily and quickly separated from the foot pedal 12;

[0061] A positioning hole 12-6 is provided at the center point of the foot's force on the foot pedal 12, and a protrusion adapted to the positioning hole 12-6 is provided on the sole of the shoe. The protrusion extends into the positioning hole 12-6.

[0062] Therefore, after the shoe is tied to the foot pedal 12 with the strap 15, the shoe is less likely to shift relative to the foot pedal 12.

[0063] Preferably, the transmission mechanism includes a drive wheel 5-1, a drive shaft 10, a drive wheel bearing 9, a pinion 17, an intermediate shaft 18, an intermediate shaft bearing 19, a flywheel 20, a driven gear 21, and a sector internal gear 1-3-1;

[0064] An intermediate shaft bearing sleeve 4-7 is provided on the outer arm 4-1, located above and in front of the drive wheel bearing sleeve 4-5;

[0065] A pair of intermediate shaft bearings 19 are installed inside the intermediate shaft bearing sleeve 4-7;

[0066] An intermediate shaft 18 is installed inside the intermediate shaft bearing 19;

[0067] The flywheel 20 is mounted on the intermediate shaft 18, and a large gear 20-1 is machined on the circumferential surface of the flywheel 20;

[0068] A small gear 17 is fixedly connected to the drive shaft 10, and the small gear 17 meshes with the large gear 20-1;

[0069] A driven gear 21 is fixedly connected to the inner end of the intermediate shaft 18;

[0070] A sector-shaped internal gear 1-3-1 is provided on the outer longitudinal beam 1-3, and the axis of the tooth of the sector-shaped internal gear 1-3-1 coincides with the axis of the swing arm shaft 3.

[0071] The passive gear 21 meshes with the sector internal gear 1-3-1;

[0072] Therefore, when the body weight acts on the front pulley 5, causing the free end of the swing arm 4 to swing upward relative to the bracket 1, the sector internal gear 1-3-1 drives the meshing passive gear 21 and the intermediate shaft 18 to rotate, causing the flywheel 20 to drive the meshing small gear 17, the drive shaft 10 and the drive wheel 5-1 to rotate through the large gear 20-1, generating forward power;

[0073] When the free end of the swing arm 4 swings downward relative to the bracket 1, the sector internal gear 1-3-1 drives the inner ring of the flywheel 20 to rotate freely through the meshing passive gear 21 and the intermediate shaft 18.

[0074] As another improvement of the present invention, the transmission mechanism includes a drive wheel 5-1, a one-way bearing 22, a drive shaft 10, a drive wheel bearing 9, a driven gear 21, and a sector gear 23.

[0075] A driven gear 21 is fixedly connected to the inner end of the drive shaft 10;

[0076] A sector gear 23 is provided on the outer longitudinal beam 1-3, and the axis of the tooth of the sector gear 23 coincides with the axis of the swing arm shaft 3;

[0077] The passive gear 21 meshes with the sector gear 23;

[0078] The drive wheel 5-1 is hinged to the drive shaft 10 via a pair of one-way bearings 22;

[0079] Therefore, when the weight of the body is applied to the front pulley 5, causing the free end of the swing arm 4 to swing upward relative to the bracket 1, the sector gear 23 drives the meshing passive gear 21 and the drive shaft 10 to rotate. When the drive shaft 10 rotates, it drives the drive wheel 5-1 to rotate through the one-way bearing 22, generating forward power.

[0080] When the free end of the swing arm 4 swings downward relative to the bracket 1, the sector gear 23 drives the drive shaft 10 to rotate freely through the meshing passive gear 21.

[0081] As another improvement of the present invention, the transmission mechanism includes a drive wheel 5-1, a drive shaft 10, a drive wheel bearing 9, a pinion 17, an intermediate shaft 18, an intermediate shaft bearing 19, a flywheel 20, a winding rope 24, a winding rope ring 25, and a return spring 26.

[0082] An intermediate shaft bearing sleeve 4-7 is provided on the outer arm 4-1, located above and in front of the drive wheel bearing sleeve 4-5;

[0083] A pair of intermediate shaft bearings 19 are installed inside the intermediate shaft bearing sleeve 4-7;

[0084] An intermediate shaft 18 is installed inside the intermediate shaft bearing 19;

[0085] The flywheel 20 is mounted on the intermediate shaft 18, and a large gear 20-1 is machined on the circumferential surface of the flywheel 20;

[0086] A small gear 17 is fixedly connected to the drive shaft 10, and the small gear 17 meshes with the large gear 20-1;

[0087] A rope loop 25 is fixed to the inner end of the intermediate shaft 18;

[0088] The upper end of the coil 24 is connected to the coil loop 25 and wraps around the coil loop 25;

[0089] The bottom of the bracket 1 is provided with a protrusion 1-11 corresponding to the rope loop 25, and the protrusion 1-11 is provided with a small hole;

[0090] The lower end of the coiled rope 24 passes through the small hole and is connected to the protrusion 1-11;

[0091] A return spring 26 is connected between the intermediate shaft 18 and the swing arm 4;

[0092] The return spring 26 stores energy when the winding rope 24 pulls the intermediate shaft 18 to rotate.

[0093] Therefore, when the weight of the body is applied to the front pulley 5, causing the free end of the swing arm 4 to swing upward relative to the bracket 1, the winding rope 24 pulls the winding rope ring 25 and the intermediate shaft 18 to rotate, causing the flywheel 20 to drive the meshing small gear 17, the drive shaft 10 and the drive wheel 5-1 to rotate through the large gear 20-1, generating forward power;

[0094] When the weight of the person on the front pulley 5 disappears or becomes extremely small, the return spring 26 releases energy, drives the intermediate shaft 18, the rope loop 25, and the inner ring of the flywheel 20 to rotate in the opposite direction, and causes the upper end of the rope 24 to re-wrap tightly around the rope loop 25.

[0095] Preferably, a frontal anti-collision plate 27 extending obliquely towards the inside of the foot is fixedly connected to the rear end of the inner longitudinal beam 1-4, thereby preventing the passive wheel 5-2 of the left foot from colliding with the passive wheel 5-2 of the right foot.

[0096] Beneficial effects of the invention

[0097] Beneficial effects

[0098] The present invention has the following main advantages:

[0099] 1. It is compatible with the original walking power generation method, combines walking and gliding, fully converts the potential energy and kinetic energy lost in walking into gliding kinetic energy, and makes walking and gliding speeds superimposed, reducing the impact and wear on the knee joint.

[0100] Furthermore, it allows for flexible control of the gliding direction;

[0101] 2. The free end of the swing arm 4, the drive wheel 5-1, and the driven wheel 5-2 can swing up and down on both sides of the bracket 1;

[0102] Therefore, the minimum ground clearance of the bottom of the bracket 1 can be reduced to an ideal value, greatly improving sliding safety and comfort;

[0103] Furthermore, the minimum vertical distance between the swing trajectory of the front pulley 5 axis along the length of the support 1 and the support 1 corresponding to the center point of force on the foot can be set within a better range of 0-5 cm, and more preferably, set to a value closer to 0, so that the center of gravity of the front pulley 5 is close to the foot, increasing the fit between the cycling shoe and the foot, and facilitating the foot's control over the cycling shoe.

[0104] 3. When taking a step, under the upward counter-push force applied by the torsion spring 11 to the front end of the support 1 through the swing arm 4, the height of the foot off the ground changes in a streamlined manner as the foot steps forward. The front end of the support 1 always applies an upward counter-push force to the foot, making taking a step extremely easy.

[0105] 4. A reference plane parallel to the bottom of the bracket 1 and coinciding with the axis of the swing arm shaft 3 is used as the bisecting plane of the swing trajectory of the front pulley 5 axis. This maximizes the weight acting on the free end of the swing arm 4 and the vertical component force applied to the free end of the swing arm 4, thereby reducing frictional resistance and energy loss, and converting gravitational potential energy more fully into the forward kinetic energy of the drive wheel 5-1.

[0106] 5. During gliding, the tension of the load-bearing return spring 16 is used to support the weight of the foot acting on the rear end of the support 1 through the heel, and has a good shock absorption function.

[0107] When taking a step, as the height of the heel off the ground changes in a streamlined manner with the step, the rear end of the foot pedal 12 always applies an upward counter-push force to the heel, making taking a step extremely easy.

[0108] During normal walking, when the force is evenly distributed between the ball of the foot and the heel, or when the force is entirely distributed by the ball of the foot, the wear-resistant plate 14 will not touch the ground 28 under the spring force of the load-bearing return spring 16.

[0109] If deceleration or braking is required, when the weight is concentrated on the heel, the rear end of the foot pedal 12 swings downward against the load-bearing return spring 16 until the wear-resistant plate 14 touches the ground, and the brake is automatically applied.

[0110] This makes the braking action extremely natural and comfortable, and can brake safely and effectively in any state of motion. When stationary, it can stand still and move steadily, and can step up stairs smoothly (concentrating the weight on the heel, with the wear-resistant plate 14 directly contacting the ground). This makes the invention suitable for use as a primary means of transportation.

[0111] 6. The shoes and the eco-friendly walking-driven bicycle shoes of the present invention for transportation are separate items. The shoes worn on the feet can be quickly attached to the eco-friendly walking-driven bicycle shoes of the present invention for transportation, and the eco-friendly walking-driven bicycle shoes of the present invention for transportation can be removed from the shoes at any time.

[0112] This allows people to travel in their everyday, well-fitting shoes of all kinds, and the original walking-driven bicycle shoes of this invention for transportation do not affect the fit and comfort of the shoes to the feet.

[0113] 7. Compared to bicycles, there is no need to use both hands to control the direction. The freed hands can each hold a pole, and the hand and foot coordination will further greatly improve the speed, comfort and safety of skiing, while the whole body will get a more comprehensive exercise.

[0114] 8. It has a simple, lightweight, and flexible structure, and can be used on subways and buses.

[0115] Brief description of the accompanying drawings Attached Figure Description

[0116] Figure 1 This is a schematic diagram of the overall structure of the left shoe in Embodiment 1 when the free end of the swing arm 4 swings upward to the maximum point.

[0117] Figure 2 yes Figure 1 A schematic diagram of the middle section structure;

[0118] Figure 3 yes Figure 1 Top view;

[0119] Figure 4 yes Figure 1 The right view;

[0120] Figure 5 yes Figure 1 The right view of the wear-resistant plate 14 in contact with the ground is omitted when the driven wheel 5-2 is in the middle.

[0121] Figure 6 yes Figure 1 Rear view;

[0122] Figure 7 yes Figure 1A schematic diagram of the structure when the free end of the swing arm 4 swings downward to the defined lowest point;

[0123] Figure 8 yes Figure 7 The right view of the passive wheel 5-2 is omitted.

[0124] Figure 9 yes Figure 1 Schematic diagram of the structure of the middle support 1;

[0125] Figure 10 yes Figure 1 Schematic diagram of the middle swing arm 4;

[0126] Figure 11 yes Figure 10 Top view;

[0127] Figure 12 yes Figure 1 Schematic diagram of the structure of the middle swing arm shaft 3;

[0128] Figure 13 yes Figure 1 Schematic diagram of the structure of the passive shaft 8;

[0129] Figure 14 and Figure 15 yes Figure 1 A schematic diagram of the structure of the middle foot pedal 12 and the strap 15;

[0130] Figure 16 This is a schematic diagram of the structure of the left shoe in Embodiment 2 when the free end of the swing arm 4 swings upward to the limit highest point;

[0131] Figure 17 yes Figure 16 A schematic diagram of the middle section structure;

[0132] Figure 18 yes Figure 16 Top view;

[0133] Figure 19 yes Figure 16 Schematic diagram of the structure of the middle support 1;

[0134] Figure 20 yes Figure 16 Schematic diagram of the middle swing arm 4;

[0135] Figure 21 yes Figure 20 Top view;

[0136] Figure 22 yes Figure 16 Schematic diagram of the structure of the sector gear 23;

[0137] Figure 23This is a schematic diagram of the structure of the left shoe in Embodiment 3 when the free end of the swing arm 4 swings upward to the limit highest point;

[0138] Figure 24 yes Figure 23 Enlarged view of a portion of the central structure;

[0139] Figure 25 yes Figure 23 Top view;

[0140] Figure 26 yes Figure 23 Schematic diagram of the middle swing arm 4;

[0141] Figure 27 yes Figure 23 Schematic diagram of the structure of the central coiled rope loop 25 and the coiled rope 24;

[0142] In the attached diagram: 1. Bracket; 1-1. Front beam; 1-2. Rear beam; 1-3. Outer longitudinal beam; 1-3-1. Sector internal gear; 1-3-2. Outer tail rod; 1-4. Inner longitudinal beam; 1-4-1. Inner tail rod; 1-5. Transverse plate; 1-6. Front bearing sleeve; 1-7. Transverse reinforcing plate; 1-8. Bushing; 1-9. Upper stop block; 1-10. Lower stop block; 1-11. Protrusion; 2. Rear pulley; 3. Swing arm shaft; 4. Swing arm; 4-1. Outer arm; 4-1-1. First outer arm; 4-1-2. Second outer arm; 4-1-3. Third outer arm. 4-2. Inner arm; 4-2-1. First inner arm; 4-2-2. Second inner arm; 4-3. Crossbeam; 4-4. Shaft hole; 4-5. Drive wheel bearing sleeve; 4-6. Driven wheel bearing sleeve; 4-7. Intermediate shaft bearing sleeve; 4-8. Small rod; 5. Front pulley; 5-1. Drive wheel; 5-2. Driven wheel; 6. Front bearing; 7. Driven wheel bearing; 8. Driven shaft; 8-1. Small flange; 8-2. Pin hole; 9. Drive wheel bearing; 10. Drive shaft; 11. Torsion spring; 12. Foot pedal; 12-1. Sliding bearing; 12-2. Slot; 12-3. Flanged flange; 12-4. Retaining ring; 12-5. Positioning ring; 12-6. Positioning hole; 13. Transverse small shaft; 14. Wear-resistant plate; 15. Strap; 16. Load-bearing return spring; 17. Small gear. 18. Intermediate shaft; 19. Intermediate shaft bearing; 20. Flywheel; 20-1. Large gear; 21. Driven gear; 22. One-way bearing; 23. Sector gear; 23-1. Outer upper stop block; 23-2. Outer lower stop block; 24. Rope winding; 25. Rope winding ring; 26. Return spring; 27. Anti-collision plate; 28. Ground.

[0143] The best embodiment of the invention

[0144] The best embodiment of the present invention

[0145] like Figures 1 to 15 As shown, an eco-friendly walking-driven bicycle shoe for transportation is provided. It includes a support 1, a front pulley 5 hinged to the front end of the support 1, and a rear pulley 2 hinged to the rear end of the support 1. The rear pulley 2 is a swivel wheel that can adjust its direction according to the swing of the heel.

[0146] At the front end of the bracket 1, a swing arm 4 is hinged to a horizontally arranged swing arm shaft 3;

[0147] The swing arm 4 is composed of an outer arm 4-1 and an inner arm 4-2 located on both sides of the bracket 1, and a crossbeam 4-3 connecting the front ends of the outer arm 4-1 and the inner arm 4-2 and fixing the outer arm 4-1 and the inner arm 4-2 into a whole.

[0148] A limiting member is provided between the swing arm 4 and the bracket 1 to allow the free end of the swing arm 4 to swing only within a limited angle range;

[0149] The free end of the swing arm 4, which swings within the angle range defined by the limiting member, generally points backward.

[0150] A front pulley 5 is hinged to the free end of the inner arm 4-2 via a pair of passive wheel bearings 7 and a passive shaft 8, and the front pulley 5 hinged to the free end of the inner arm 4-2 is set as the passive wheel 5-2;

[0151] A pair of drive wheel bearing sleeves 4-5 are provided at the free end of the outer arm 4-1, with their axial direction perpendicular to the length direction of the outer arm 4-1;

[0152] A pair of drive wheel bearings 9 are installed inside the drive wheel bearing sleeve 4-5;

[0153] A drive shaft 10 is installed inside the drive wheel bearing 9, and the drive shaft 10 is coaxial with the driven shaft 8.

[0154] A front pulley 5 is fixedly connected to the drive shaft 10, and the front pulley 5 fixedly connected to the drive shaft 10 is set as drive wheel 5-1;

[0155] Between the outer arm 4-1 and the bracket 1, there is a transmission mechanism that uses the swing of the free end of the swing arm 4 relative to the bracket 1 within a limited angle range to drive the drive wheel 5-1 to rotate, and uses the weight of the human body as the driving force.

[0156] The free end of the swing arm 4, the drive wheel 5-1, and the driven wheel 5-2 can swing up and down on both sides of the bracket 1;

[0157] Therefore, the minimum ground clearance of the bottom of the bracket 1 can be reduced to an ideal value, greatly improving sliding safety and comfort;

[0158] Furthermore, the minimum vertical distance between the swing trajectory of the front pulley 5 axis along the length of the support 1 and the support 1 corresponding to the center point of force on the foot (for ease of description, the center point of force on the foot when bearing weight is referred to as the center point of force on the foot below) (i.e., the longitudinal distance between the front pulley 5 axis and the center point of force on the foot when the axis swings to be closest to the center point of force on the foot) can be set within a preferred range of 0-5 cm. More preferably, it can be set to a value close to 0, so that the center of gravity of the front pulley 5 is close to the center point of force on the foot, increasing the fit between the original ecological walking-driven bicycle shoe of the present invention for transportation and the foot, and facilitating the foot's control over the original ecological walking-driven bicycle shoe of the present invention for transportation.

[0159] The bottoms of the front beam 1-1, the rear beam 1-2, the outer longitudinal beam 1-3, and the inner longitudinal beam 1-4 are located on the same plane, forming the bottom of the bracket 1.

[0160] A reference plane parallel to the bottom of the bracket 1 and coinciding with the axis of the swing arm 3 is used as the bisecting plane of the swing trajectory of the front pulley 5 axis. This maximizes the weight acting on the free end of the swing arm 4 and the vertical component force applied to the free end of the swing arm 4, thereby reducing frictional resistance and energy loss, and more fully converting gravitational potential energy into the forward kinetic energy of the drive wheel 5-1.

[0161] The bracket 1 adopts a frame structure, consisting of a front beam 1-1 located in front of the toe, a rear beam 1-2 located behind the heel, an outer longitudinal beam 1-3 located on the outer side of the foot, an inner longitudinal beam 1-4 located on the inner side of the foot, and a rear cross plate 1-5 connected between the rear ends of the outer longitudinal beam 1-3 and the inner longitudinal beam 1-4 for mounting the rear pulley 2.

[0162] A pair of coaxial front bearing sleeves 1-6 are provided at the front ends of the outer longitudinal beam 1-3 and the inner longitudinal beam 1-4.

[0163] A front bearing 6 is provided inside the front bearing sleeve 1-6;

[0164] At one end of the outer arm 4-1 and the inner arm 4-2 near the crossbeam 4-3, there is a pair of coaxial shaft holes 4-4 that are adapted to the swing arm shaft 3;

[0165] The swing arm shaft 3 passes through the shaft hole 4-4 and the front bearing 6 to hinge the swing arm 4 to the front end of the bracket 1;

[0166] The outer arm 4-1 includes a first outer arm 4-1-1, a second outer arm 4-1-2, and a third outer arm 4-1-3;

[0167] The first arm of the outer arm 4-1-1 is integrally bent into shape with the crossbeam 4-3;

[0168] The second arm 4-1-2 of the outer arm and the third arm 4-1-3 of the outer arm are integrally bent and formed, and are fixedly connected to the crossbeam 4-3;

[0169] The inner arm 4-2 includes an inner arm first branch arm 4-2-1 and an inner arm second branch arm 4-2-2;

[0170] The first inner arm 4-2-1 and the second inner arm 4-2-2 are integrally bent and formed, and are fixedly connected to the crossbeam 4-3;

[0171] A pair of passive wheel bearing sleeves 4-6 are provided at the free end of the inner arm 4-2, with their axial direction perpendicular to the length direction of the inner arm 4-2;

[0172] A pair of passive wheel bearings 7 are installed inside the passive wheel bearing sleeve 4-6;

[0173] A passive shaft 8 is installed inside the passive wheel bearing 7;

[0174] A driven wheel 5-2 is fixedly connected to the driven shaft 8;

[0175] The passive wheel 5-2 should be made as thin as possible, with its thickness preferably controlled between 1-2 cm. Therefore, its hub should preferably be made of high-strength aluminum alloy.

[0176] The inner end of the passive shaft 8 is provided with a small protrusion 8-1, and the outer end of the passive shaft 8 is provided with a pin hole 8-2. A limiting pin to prevent the passive shaft 8 from retracting is installed in the pin hole 8-2.

[0177] A torsion spring 11 is fitted onto the swing arm shaft 3;

[0178] The two ends of the torsion spring 11 are connected between the free end of the swing arm 4 and the front end of the bracket 1;

[0179] The force of the torsion spring 11 tends to cause the free end of the swing arm 4 to swing downward;

[0180] Therefore, when taking a step, under the upward counter-force exerted by the torsion spring 11 on the front end of the support 1 through the swing arm 4, the height of the foot off the ground changes in a streamlined manner as the foot moves forward. The front end of the support 1 can always exert an upward counter-force on the foot, making taking a step extremely easy.

[0181] A foot pedal 12 is provided inside the bracket 1;

[0182] A transverse reinforcing plate 1-7 is provided between the bottom of the outer longitudinal beam 1-3 and the bottom of the inner longitudinal beam 1-4, at the point corresponding to the center point of force on the foot in the length direction of the foot.

[0183] Two pairs of coaxial bushings 1-8 are provided on the transverse reinforcing plate 1-7, and the axis of the bushings 1-8 corresponds to the center point of the force on the foot in the length direction of the sole.

[0184] At the bottom of the foot pedal 12, at the center point of force on the sole of the foot along the length of the foot, there is a pair of sliding bearings 12-1 that correspond to the bushings 1-8 respectively.

[0185] A pair of coaxial transverse small shafts 13 pass through the bushing 1-8 and the sliding bearing 12-1 respectively to hinge the foot pedal 12 to the bracket 1;

[0186] A wear-resistant plate 14 is installed at the rear end of the bottom of the foot pedal 12, and the rear end of the foot pedal 12 can swing downwards so that the wear-resistant plate 14 touches the ground;

[0187] A load-bearing return spring 16 is connected between the foot pedal 12 and the bracket 1;

[0188] When the load-bearing return spring 16 is subjected to force, it tends to cause the rear end of the foot pedal 12 to move upward;

[0189] During gliding, the load-bearing return spring 16 is used to bear the weight of the foot acting on the rear end of the support 1 through the heel, and has a good shock absorption function.

[0190] Furthermore, when stepping forward, as the heel's height from the ground changes in a streamlined manner with each step, the rear end of the foot pedal 12 always applies an upward counter-force to the heel, making stepping extremely easy.

[0191] When the weight exceeds the preset bearing range of the load-bearing return spring 16, it acts on the rear end of the foot pedal 12 through the heel. The rear end of the foot pedal 12 will swing downward until the wear-resistant plate 14 touches the ground, and the automatic brake will be applied.

[0192] Therefore, during normal walking, when the force is evenly distributed between the ball of the foot and the heel, or when the force is entirely distributed by the ball of the foot, the wear-resistant plate 14 will not touch the ground 28 under the spring force of the load-bearing return spring 16.

[0193] If deceleration or braking is required, when the weight is concentrated on the heel, the rear end of the foot pedal 12 swings downward against the load-bearing return spring 16 until the wear-resistant plate 14 touches the ground, automatically braking.

[0194] A slot 12-2 is provided at the bottom rear end of the foot pedal 12;

[0195] A wear-resistant sheet 14 is embedded in the slot 12-2, and the wear-resistant sheet 14 may be made of wear-resistant ceramic material;

[0196] At the rear end of the slot 12-2, a protruding edge 12-3 is provided to prevent the wear-resistant piece 14 from sliding out of the slot 12-2;

[0197] Tail rods 1-3-2 and 1-4-1 are respectively formed upwards at the rear ends of the outer longitudinal beam 1-3 and the inner longitudinal beam 1-4.

[0198] The load-bearing return spring 16 consists of several rubber tension springs connected between the rear end of the foot pedal 12 and the top of the tail rods 1-3-2 and 1-4-1.

[0199] The foot pedal 12 is also provided with a locking device for securing the shoe to the foot pedal 12;

[0200] The locking device includes two retaining rings 12-4 disposed on one side of the foot pedal 12;

[0201] A strap 15 is connected to the fixing ring 12-4;

[0202] The strap 15 is provided with self-adhesive Velcro;

[0203] On the other side of the foot pedal 12, a positioning ring 12-5 corresponding to the fixing ring 12-4 is provided;

[0204] Thus, when the free end of the strap 15 passing through the positioning ring 12-5 is pulled tight and folded back, and the self-adhesive Velcro on the strap 15 is glued together, the purpose of quickly binding the shoe to the foot pedal 12 is achieved.

[0205] Similarly, the shoes can be easily and quickly separated from the foot pedal 12;

[0206] A positioning hole 12-6 is provided at the center point of the foot's force on the foot pedal 12, and a protrusion adapted to the positioning hole 12-6 is provided on the sole of the shoe. The protrusion extends into the positioning hole 12-6.

[0207] Therefore, after the shoe is tied to the foot pedal 12 with the strap 15, the shoe is less likely to shift relative to the foot pedal 12.

[0208] The transmission mechanism includes a drive wheel 5-1, a drive shaft 10, a drive wheel bearing 9, a pinion 17, an intermediate shaft 18, an intermediate shaft bearing 19, a flywheel 20, a driven gear 21, and a sector internal gear 1-3-1.

[0209] An intermediate shaft bearing sleeve 4-7 is provided on the outer arm 4-1, located above and in front of the drive wheel bearing sleeve 4-5;

[0210] A pair of intermediate shaft bearings 19 are installed inside the intermediate shaft bearing sleeve 4-7;

[0211] An intermediate shaft 18 is installed inside the intermediate shaft bearing 19;

[0212] The flywheel 20 is mounted on the intermediate shaft 18, and a large gear 20-1 is machined on the circumferential surface of the flywheel 20;

[0213] The thickness of the inner ring of the flywheel 20 is adapted to the distance between the two intermediate shaft bearings 19, so that the flywheel 20 is squeezed between the two intermediate shaft bearings 19 to prevent it from moving left and right.

[0214] A small gear 17 is fixedly connected to the drive shaft 10, and the small gear 17 meshes with the large gear 20-1;

[0215] A driven gear 21 is fixedly connected to the inner end of the intermediate shaft 18. In order to save lateral space, the driven gear 21 is machined with internal threads, and the inner end of the intermediate shaft 18 is machined with external threads, and the threads are fixedly connected.

[0216] The outer end of the intermediate shaft 18 is provided with a small raised edge with a thickness of about 1 mm;

[0217] A sector-shaped internal gear 1-3-1 is provided on the outer longitudinal beam 1-3, and the axis of the tooth of the sector-shaped internal gear 1-3-1 coincides with the axis of the swing arm shaft 3.

[0218] The passive gear 21 meshes with the sector internal gear 1-3-1;

[0219] Therefore, when the body weight acts on the front pulley 5, causing the free end of the swing arm 4 to swing upward relative to the bracket 1, the sector internal gear 1-3-1 drives the meshing passive gear 21 and the intermediate shaft 18 to rotate, causing the flywheel 20 to drive the meshing small gear 17, the drive shaft 10 and the drive wheel 5-1 to rotate through the large gear 20-1, generating forward power;

[0220] When the free end of the swing arm 4 swings downward relative to the bracket 1, the sector internal gear 1-3-1 drives the inner ring of the flywheel 20 to rotate freely through the meshing passive gear 21 and the intermediate shaft 18.

[0221] At the rear end of the inner longitudinal beam 1-4, a bumper plate 27 is fixedly attached, extending forward and diagonally inward towards the inside of the foot, thereby preventing the passive wheel 5-2 of the left foot from colliding with the passive wheel 5-2 of the right foot. The bumper plate 27 is made of leaf spring material.

[0222] The limiting components include: an upper stop block 1-9 disposed on the upper end of the inner longitudinal beam 1-4 to limit the upward swing range of the free end of the inner arm 4-2, and a lower stop block 1-10 disposed on the lower end of the inner longitudinal beam 1-4 to limit the downward swing range of the free end of the inner arm 4-2.

[0223] Preferably, the vertical distance between the axis of the swing arm shaft 3 and the bottom of the bracket 1 is set to 38 mm. A reference plane parallel to the bottom of the bracket 1 and coinciding with the axis of the swing arm shaft 3 is used as the bisecting plane of the swing trajectory of the axis of the front pulley 5. The axis of the front pulley 5 is limited to swinging up and down between 30 mm above and 30 mm below the reference plane. The diameter of the front pulley 5 is set to 170 mm. The bottom of the rear pulley 2 is located 18 mm below the bottom of the bracket 1. When the free end of the swing arm 4 swings upward to be close to the upper stop block 1-9, the bottom of the front pulley 5 is located 18 mm below the bottom of the bracket 1.

[0224] The processing technology of the bracket 1 is as follows: 1. Laser cutting of sheet metal (cutting to form the sector-shaped internal gear 1-3-1); 2. Sheet metal bending; 3. Interface welding to form a sheet metal frame composed of the front beam 1-1, the outer longitudinal beam 1-3, the rear beam 1-2, and the inner longitudinal beam 1-4; 4. Quenching the sheet metal frame; 5. Welding (preferably cold welding) the transverse reinforcing plate 1-7, the rear transverse plate 1-5, and the front bearing sleeve 1-6 onto the sheet metal frame to form the bracket 1.

[0225] The processing technology of the swing arm 4 is as follows: 1. Laser cutting of sheet metal; 2. Sheet metal bending to form a 7-shaped first sheet metal part consisting of the crossbeam 4-3 and the first outer arm 4-1-1; 3. Sheet metal bending to form a second sheet metal part consisting of the second outer arm 4-1-2 and the third outer arm 4-1-3; 4. Sheet metal bending to form a third sheet metal part consisting of the first inner arm 4-2-1 and the second inner arm 4-2-2; 5. Quenching each sheet metal part; 6. Cold welding the drive wheel bearing sleeve 4-5, the driven wheel bearing sleeve 4-6, and the intermediate shaft bearing sleeve 4-7 to the corresponding sheet metal parts; 7. Fixing the front ends of the first sheet metal part and the second sheet metal part to the crossbeam 4-3 in the first sheet metal part, which can be riveting or cold welding, to form the swing arm 4.

[0226] Invention Embodiments

[0227] Embodiments of the present invention

[0228] Example 1

[0229] like Figures 16 to 22 As shown, Embodiment 2 is basically the same as Embodiment 1, except that the transmission mechanism in Embodiment 2 includes a drive wheel 5-1, a one-way bearing 22, a drive shaft 10, a drive wheel bearing 9, a driven gear 21, and a sector gear 23.

[0230] A driven gear 21 is fixedly connected to the inner end of the drive shaft 10;

[0231] A sector gear 23 is provided on the outer longitudinal beam 1-3, and the axis of the tooth of the sector gear 23 coincides with the axis of the swing arm shaft 3;

[0232] The passive gear 21 meshes with the sector gear 23;

[0233] The drive wheel 5-1 is hinged to the drive shaft 10 via a pair of one-way bearings 22;

[0234] Therefore, when the weight of the body is applied to the front pulley 5, causing the free end of the swing arm 4 to swing upward relative to the bracket 1, the sector gear 23 drives the meshing passive gear 21 and the drive shaft 10 to rotate. When the drive shaft 10 rotates, it drives the drive wheel 5-1 to rotate through the one-way bearing 22, generating forward power.

[0235] When the free end of the swing arm 4 swings downward relative to the bracket 1, the sector gear 23 drives the drive shaft 10 to rotate freely through the meshing driven gear 21. Figure 20 As shown, the outer arm 4-1 in Embodiment 2 is composed of an integrally bent first outer arm 4-1-1 and an outer arm second outer arm 4-1-2.

[0236] The limiting components include: an outer upper stop block 23-1 disposed on the upper end of the sector gear 23 to limit the upward swing range of the free end of the outer arm 4-1; an outer lower stop block 23-2 disposed on the lower end of the sector gear 23 to limit the downward swing range of the free end of the outer arm 4-1; an upper stop block 1-9 disposed on the upper end of the inner longitudinal beam 1-4 to limit the upward swing range of the free end of the inner arm 4-2; and a lower stop block 1-10 disposed on the lower end of the inner longitudinal beam 1-4 to limit the downward swing range of the free end of the inner arm 4-2. The sector gear 23 is fixedly connected to the outer longitudinal beam 1-3.

[0237] Example 2

[0238] like Figures 23 to 27As shown, Embodiment 3 is basically the same as Embodiment 1, except that the transmission mechanism in Embodiment 3 includes a drive wheel 5-1, a drive shaft 10, a drive wheel bearing 9, a pinion 17, an intermediate shaft 18, an intermediate shaft bearing 19, a flywheel 20, a winding rope 24, a winding rope ring 25, and a return spring 26.

[0239] An intermediate shaft bearing sleeve 4-7 is provided on the outer arm 4-1, located above and in front of the drive wheel bearing sleeve 4-5;

[0240] A pair of intermediate shaft bearings 19 are installed inside the intermediate shaft bearing sleeve 4-7;

[0241] An intermediate shaft 18 is installed inside the intermediate shaft bearing 19;

[0242] The flywheel 20 is mounted on the intermediate shaft 18, and a large gear 20-1 is machined on the circumferential surface of the flywheel 20;

[0243] A small gear 17 is fixedly connected to the drive shaft 10, and the small gear 17 meshes with the large gear 20-1;

[0244] A rope loop 25 is fixed to the inner end of the intermediate shaft 18;

[0245] The upper end of the coil 24 is connected to the coil loop 25 and wraps around the coil loop 25;

[0246] The bottom of the bracket 1 is provided with a protrusion 1-11 corresponding to the rope loop 25, and the protrusion 1-11 is provided with a small hole;

[0247] The lower end of the coiled rope 24 passes through the small hole and is connected to the protrusion 1-11;

[0248] A return spring 26 is connected between the intermediate shaft 18 and the swing arm 4;

[0249] To save lateral space, the space between the tire and the hub of the drive wheel 5-1 can be used to install the return spring 26, such as... Figure 24 As shown, the outer end of the intermediate shaft 18 can extend outward to be close to the hub of the drive wheel 5-1. The return spring 26 is a rubber tension spring, one end of which is connected to the outer end of the intermediate shaft 18 and wraps around the outer end of the intermediate shaft 18, and the other end is connected to the small rod 4-8 (such as...) provided on the outer arm 4-1. Figures 24 to 26 (As shown) Connection;

[0250] The return spring 26 stores energy when the winding rope 24 pulls the intermediate shaft 18 to rotate.

[0251] Therefore, when the weight of the body is applied to the front pulley 5, causing the free end of the swing arm 4 to swing upward relative to the bracket 1, the winding rope 24 pulls the winding rope ring 25 and the intermediate shaft 18 to rotate, causing the flywheel 20 to drive the meshing small gear 17, the drive shaft 10 and the drive wheel 5-1 to rotate through the large gear 20-1, generating forward power;

[0252] When the weight of the person on the front pulley 5 disappears or becomes extremely small, the return spring 26 releases energy, causing the intermediate shaft 18, the rope loop 25, and the inner ring of the flywheel 20 to rotate in the opposite direction, and causing the upper end of the rope 24 to be tightly wound around the rope loop 25 again. The rope 24 is made of steel wire with a diameter of 1-1.8 mm.

[0253] Industrial applicability

[0254] Working principle:

[0255] When walking: When the body weight acts on the front pulley 5, causing the free end of the swing arm 4 to swing upward relative to the bracket 1, the sector internal gear 1-3-1 drives the meshing passive gear 21 and the intermediate shaft 18 to rotate, causing the flywheel 20 to drive the meshing small gear 17, the drive shaft 10 and the drive wheel 5-1 to rotate through the large gear 20-1, generating forward power;

[0256] When the foot lifts and steps forward: Under the combined action of the weight of the swing arm 4 and the front pulley 5 and the rebound force of the torsion spring 11, the free end of the swing arm 4 swings downward until it is close to the lower stop block 1-10. During this process, the torsion spring 11 applies an upward counter-push force to the front end of the bracket 1 and the foot through the swing arm 4. At the same time, under the spring force of the load-bearing return spring 16, the rear end of the foot pedal 12 also applies an upward counter-push force to the heel.

[0257] Therefore, when the height of the ball of the foot and the heel off the ground changes in a streamlined manner as the foot steps forward, the front end of the bracket 1 and the rear end of the foot pedal 12 can always apply an upward counter-push force to the ball of the foot and the heel respectively, making stepping extremely easy.

[0258] During normal walking, when the force is evenly distributed between the ball of the foot and the heel, or when the force is entirely distributed by the ball of the foot, the wear-resistant plate 14 does not touch the ground 28 under the spring force of the load-bearing return spring 16.

[0259] If deceleration or braking is required, when the weight is concentrated on the heel, the rear end of the foot pedal 12 swings downward against the load-bearing return spring 16 until the wear-resistant plate 14 touches the ground, automatically braking. This makes the braking action extremely natural and comfortable, and can brake safely and effectively in any state of travel.

Claims

1. An eco-friendly walking-driven bicycle shoe for transportation, comprising a frame (1), a front pulley (5) hinged to the front end of the frame (1), and a rear pulley (2) hinged to the rear end of the frame (1), characterized in that: The rear pulley (2) is a universal wheel that can adjust its direction according to the swing of the heel; The bracket (1) adopts a frame structure, consisting of a front beam (1-1), a rear beam (1-2), an outer longitudinal beam (1-3), an inner longitudinal beam (1-4), and a rear cross plate (1-5) connecting the rear ends of the outer longitudinal beam (1-3) and the inner longitudinal beam (1-4). The front ends of the outer longitudinal beam (1-3) and the inner longitudinal beam (1-4) are provided with a pair of coaxial front bearing sleeves (1-6), and the front bearing sleeves (1-6) are provided with a front bearing (6). The front end of the bracket (1) is hinged to a swing arm (4) via a horizontally arranged swing arm shaft (3). The swing arm (4) consists of an outer arm (4-1), an inner arm (4-2), and a crossbeam (4-3) connecting the front ends of the outer arm (4-1) and the inner arm (4-2). The outer arm (4-1) is located on the outside of the foot, and the inner arm (4-2) is located on the inside of the foot. The outer arm (4-1) and the inner arm (4-2) are provided with a coaxial shaft hole (4-4) at one end near the crossbeam (4-3). The swing arm shaft (3) passes through the shaft hole (4-4) and the front bearing (6) to hinge the swing arm (4) to the front end of the bracket (1). A limiting member is provided between the swing arm (4) and the bracket (1) to restrict the free end of the swing arm (4) to swing only within a limited angle range, and the free end points to the rear within the limited angle range; The inner arm (4-2) has a passive wheel bearing sleeve (4-6) with its axial direction perpendicular to its length direction at the free end. A passive wheel bearing (7) is installed inside the passive wheel bearing sleeve (4-6). A passive shaft (8) is installed inside the passive wheel bearing (7). A front pulley (5) serving as a passive wheel (5-2) is fixedly connected to the passive shaft (8). The free end of the outer arm (4-1) is provided with a drive wheel bearing sleeve (4-5) with its axial direction perpendicular to its length direction. A drive wheel bearing (9) is installed inside the drive wheel bearing sleeve (4-5). A drive shaft (10) is installed inside the drive wheel bearing (9). A front pulley (5) serving as the drive wheel (5-1) is fixedly connected to the drive shaft (10). The drive shaft (10) is coaxial with the passive shaft (8). A transmission mechanism is provided between the outer arm (4-1) and the bracket (1). The transmission mechanism uses the swing of the free end of the swing arm (4) within the limited angle range to drive the drive wheel (5-1) to rotate with the weight of the human body as the driving force. The free end of the swing arm (4), the drive wheel (5-1) and the driven wheel (5-2) can swing up and down on both sides of the bracket (1); In the length direction of the bracket (1), the minimum vertical distance between the swing trajectory of the axis of the front pulley (5) and the bracket (1) corresponding to the center point of force on the foot is 0-5 cm; A torsion spring (11) is fitted on the swing arm shaft (3). The two ends of the torsion spring (11) are respectively connected to the free end of the swing arm (4) and the front end of the bracket (1). Its force tends to make the free end of the swing arm (4) swing downward. When taking a step, the torsion spring (11) applies an upward counter-force to the front end of the support (1) through the swing arm (4), so that the height of the foot off the ground changes in a streamlined manner, and the front end of the support (1) always applies the counter-force to the foot.

2. The eco-friendly walking-driven bicycle shoe for transportation as described in claim 1, characterized in that: The bracket (1) is equipped with a foot pedal (12); a transverse reinforcing plate (1-7) is provided between the bottom of the outer longitudinal beam (1-3) and the inner longitudinal beam (1-4), corresponding to the center point of the foot's force, and two pairs of coaxial bushings (1-8) are provided on the transverse reinforcing plate (1-7), with the axis of the bushings (1-8) located at the center point of the foot's force; a pair of sliding bearings (12-1) corresponding to the bushings (1-8) are provided at the bottom of the foot pedal (12); a pair of coaxial transverse small A shaft (13) passes through the bushing (1-8) and the sliding bearing (12-1) respectively to hinge the foot pedal (12) to the bracket (1); a wear-resistant plate (14) is installed at the rear end of the bottom of the foot pedal (12), and the rear end of the foot pedal (12) can swing downwards until the wear-resistant plate (14) touches the ground; a load-bearing return spring (16) is connected between the foot pedal (12) and the bracket (1), and when the load-bearing return spring (16) is under force, it tends to make the rear end of the foot pedal (12) move upwards; When gliding, the load-bearing return spring (16) bears the weight acting on the rear end of the support (1) through the heel and provides shock absorption; when stepping, the rear end of the foot pedal (12) applies an upward counter-force to the heel; when the weight exceeds the preset bearing range of the load-bearing return spring (16) and acts on the heel, the rear end of the foot pedal (12) swings downward until the wear-resistant plate (14) touches the ground, realizing automatic braking.

3. The eco-friendly walking-driven bicycle shoe for transportation as described in claim 2, characterized in that: A slot (12-2) is provided at the rear end of the bottom of the foot pedal (12); A wear-resistant sheet (14) is embedded in the slot (12-2); At the rear end of the slot (12-2), a protruding edge (12-3) is provided to prevent the wear-resistant piece (14) from sliding out of the slot (12-2). The outer longitudinal beam (1-3) and the inner longitudinal beam (1-4) have tail rods (1-3-2) and (1-4-1) respectively formed upward at their rear ends. The load-bearing return spring (16) consists of several rubber tension springs connected between the rear end of the foot pedal (12) and the top of the tail rod (1-3-2) and (1-4-1).

4. The eco-friendly walking-driven bicycle shoe for transportation as described in claim 2, characterized in that: The foot pedal (12) is provided with a locking device for binding the shoe thereon; the locking device includes two fixing rings (12-4) on one side of the foot pedal (12), a strap (15) connected to the fixing rings (12-4) and having self-adhesive Velcro, and a positioning ring (12-5) on the other side of the foot pedal (12) and corresponding to the fixing rings (12-4); the free end of the strap (15) passes through the positioning ring (12-5) and then folds back, and is bonded to each other by the self-adhesive Velcro to achieve quick binding or separation; The foot pedal (12) has a positioning hole (12-6) at the center point of the foot's force, and the sole of the shoe has a protrusion that matches the positioning hole (12-6), which extends into the positioning hole (12-6).

5. A type of eco-friendly walking-driven bicycle shoe for transportation as described in any one of claims 1 to 4, characterized in that: The transmission mechanism includes a drive wheel (5-1), a drive shaft (10), a drive wheel bearing (9), a pinion (17), an intermediate shaft (18), an intermediate shaft bearing (19), a flywheel (20), a driven gear (21), and a sector internal gear (1-3-1). The outer arm (4-1) is provided with an intermediate shaft bearing sleeve (4-7) located in front of and above the drive wheel bearing sleeve (4-5). A pair of intermediate shaft bearings (19) are installed inside the intermediate shaft bearing sleeve (4-7), and the intermediate shaft (18) is installed inside the intermediate shaft bearings (19). The flywheel (20) is mounted on the intermediate shaft (18), and a large gear (20-1) is provided on its circumferential surface. The small gear (17) is fixedly connected to the drive shaft (10), and the small gear (17) meshes with the large gear (20-1); The passive gear (21) is fixed to the inner end of the intermediate shaft (18). The outer longitudinal beam (1-3) is provided with the sector-shaped internal gear (1-3-1), the tooth axis of the sector-shaped internal gear (1-3-1) coincides with the axis of the swing arm shaft (3), and the driven gear (21) meshes with the sector-shaped internal gear (1-3-1); When the free end of the swing arm (4) swings upward under the action of its own weight, the sector internal gear (1-3-1) drives the passive gear (21) and the intermediate shaft (18) to rotate, and through the flywheel (20) drives the pinion (17), the drive shaft (10) and the drive wheel (5-1) to rotate to generate forward power. When the free end of the swing arm (4) swings downward, the flywheel (20) spins freely.

6. A type of eco-friendly walking-driven bicycle shoe for transportation as described in any one of claims 1 to 4, characterized in that: The transmission mechanism includes a drive wheel (5-1), a one-way bearing (22), a drive shaft (10), a drive wheel bearing (9), a driven gear (21), and a sector gear (23). The inner end of the drive shaft (10) is fixed with the driven gear (21). The outer longitudinal beam (1-3) is provided with the sector gear (23), the tooth axis of the sector gear (23) coincides with the axis of the swing arm shaft (3), and the driven gear (21) meshes with the sector gear (23); The drive wheel (5-1) is hinged to the drive shaft (10) via a pair of one-way bearings (22); When the free end of the swing arm (4) swings upward under the action of its own weight, the sector gear (23) drives the passive gear (21) and the drive shaft (10) to rotate, and drives the drive wheel (5-1) to rotate through the one-way bearing (22) to generate forward power; When the free end of the swing arm (4) swings downward, the drive shaft (10) idles.

7. A type of eco-friendly walking-driven bicycle shoe for transportation as described in any one of claims 1 to 4, characterized in that: The transmission mechanism includes a drive wheel (5-1), a drive shaft (10), a drive wheel bearing (9), a pinion (17), an intermediate shaft (18), an intermediate shaft bearing (19), a flywheel (20), a winding rope (24), a winding rope ring (25), and a return spring (26). The outer arm (4-1) is provided with an intermediate shaft bearing sleeve (4-7) located in front of and above the drive wheel bearing sleeve (4-5). A pair of intermediate shaft bearings (19) are installed inside the intermediate shaft bearing sleeve (4-7), and the intermediate shaft (18) is installed inside the intermediate shaft bearings (19). The flywheel (20) is mounted on the intermediate shaft (18), and a large gear (20-1) is provided on its circumferential surface. The small gear (17) is fixedly connected to the drive shaft (10), and the small gear (17) meshes with the large gear (20-1); The inner end of the intermediate shaft (18) is fixed with the rope loop (25). The upper end of the coil (24) is connected to the coil loop (25) and wrapped around the coil loop (25); The bracket (1) has a protrusion (1-11) at the bottom corresponding to the rope loop (25). The protrusion (1-11) has a small hole, and the lower end of the rope (24) passes through the small hole and connects to the protrusion (1-11). The intermediate shaft (18) is connected to the swing arm (4) by the return spring (26), which stores energy when the winding rope (24) pulls the intermediate shaft (18) to rotate. When the free end of the swing arm (4) swings upward under the action of its own weight, the coil (24) pulls the coil ring (25) and the intermediate shaft (18) to rotate, and drives the pinion (17), the drive shaft (10) and the drive wheel (5-1) to rotate through the flywheel (20) to generate forward power. When the weight on the front pulley (5) disappears or decreases, the return spring (26) releases energy, causing the intermediate shaft (18) and the rope loop (25) to rotate in the opposite direction, and causing the upper end of the rope (24) to rewind around the rope loop (25).

8. A type of eco-friendly walking-driven bicycle shoe for transportation as described in any one of claims 1 to 4, characterized in that: The rear end of the inner longitudinal beam (1-4) is fixed with a bumper plate (27) that extends forward and obliquely toward the inside of the foot. The bumper plate (27) is used to prevent the passive wheels (5-2) of the left and right feet from colliding with each other.

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