Pedal drive system and bicycle

Abstract

The new pedal drive system and bicycle are characterized by: there are two drive groups consisting of a crank middle shaft and a crank and pedal shaft, two pedals arranged on the left and right, and the pedals are provided with assembly holes to assemble and constrain the pedal shafts on the same side to be driven to move, so as to obtain a larger support surface and a stable pedal; and further equipped with a drive self-locking control device, which is designed to be composed of an active interference unit and an interfered unit that can cause relative movement and controllable interference by driving movement, and the controlled interference drive self-locking position is designed to be the same height state position of the left and right pedals, so as to obtain a rest opportunity for both feet to stand on the pedals at the same height. This new type is conducive to the standing riding experience and can be applied to various bicycles, toy cars, fitness bikes and equipment.

Description

Technical Field

[0001] The present patent application relates to the technical field of transportation tools and fitness equipment, and specifically to a pedal drive system and a bicycle. Technical Background

[0002] Most of the current bicycles (including ordinary pedal bicycles, electric bicycles with pedal drive, fitness bicycles, toy bicycles, etc.) are only convenient for riding in a sitting position. In fact, we may encounter the need for standing riding: for example, it is not suitable to sit on a stool in the case of wind, rain and scorching sun, or it is not convenient for women to ride in a sitting position when wearing skirts, or it is difficult to pedal when riding in a sitting position. There are also electric vehicles, electric hot wheels, various scooters, etc. for standing riding, but there is a lack of suitable standing pedal drive systems. Another example is the demand for standing exercise of fitness equipment by fitness people, and the demand for standing riding fun of children's toy cars and scooters, or the demand of some riders who like standing riding or exercise experience; however, the pedals of the traditional bicycle drive system are not only too small and unstable, but also not conducive to standing pedal drive, and when the rider stops pedaling in a standing position, the two feet can only be in a high and low state, which is also very inconvenient for the rider to stand steadily and comfortably. A pedal drive system and bicycle that can be more stable in standing pedal drive and cheap in terms of equal height standing of the two feet are needed. Summary of the invention

[0003] In order to solve the above technical problems and facilitate standing riding experience, a new pedal drive system and a bicycle are provided.

[0004] The technical solution adopted by this embodiment to solve the technical problem is:

[0005] A pedal drive system is characterized by having two drive groups consisting of a crank middle axis and a crank and pedal shaft, two pedals arranged on the left and right, and both pedals are provided with assembly holes to constrain the pedal shafts on the same side to be driven to move; a drive self-locking control device is further installed, and the system is designed to consist of two parts: an active interference unit and an interfered unit, which are caused by driving movement to make relative movement and can be controlled to interfere with each other, and the drive self-locking position of the controlled interference of the two units is designed to be the same high state position of the left and right pedals.

[0006] Its characteristic is that one form is that the pedal is supported by the pedal shaft to make horizontal rotary reciprocating motion. The specific structure is: the front and rear drive groups are arranged and installed in an array formation, the assembly hole grooves on the pedal are specifically two assembly holes, and the hole spacing is equal to the spacing between the crank shafts of the two drive groups, and the installation constrains the two pedal shafts on the same side to have the same frequency, speed and direction of linkage.

[0007] Its characteristic is that another structural form is that the pedal is supported by the pedal shaft to make vertical up and down reciprocating motion. The specific structure is: the front and rear drive groups are arranged and installed in a mirror-symmetrical state, and the crank center axes of the two drive groups are connected by installing sprockets and chains in an "∞" type winding connection, or by installing paired gear meshing connections, to constrain the two drive groups to be mirror-linked at the same frequency and speed. The assembly hole groove on the pedal is specifically a "I" or "V" or "￣V￣" shaped through-cavity slide groove or a centering slide groove that separates two cavities, so as to respectively install and constrain the two pedal shafts on the same side to perform synchronous mirror-linked linkage in the slide groove cavity.

[0008] Its characteristic is that the crank shafts of the two drive groups can both be a whole single shaft structure and installed through the vehicle body, or the crank shaft of one of the drive groups can be a split two-section structure and installed symmetrically on the left and right sides of the vehicle body.

[0009] The utility model is characterized in that a motion guide mechanism can be installed on the foot pedal and the vehicle body.

[0010] Its characteristic is that the driving self-locking control device is designed to be composed of two parts: an active interference unit and an interfered unit, which can cause relative movement and controllable interference by driving movement: the active interference unit is a two-speed control mechanism with a rigid interference part structure, which is installed on the pedal, and is a functional mechanism for controlling the active and interfered units to be kept in a state of separation or an interference state; the passive interference unit can be an ordinary crank or pedal shaft itself, or a matching structural part with interfered hole grooves or cross-section features, which exists in the form of an integrated feature or is installed in the form of a component on the crank or pedal shaft or vehicle body, and is a functional component that forms driving movement interference by the invasion of the matching active interference unit; the controlled interference driving self-locking position of the two units is designed to be an equal high state position of the left and right pedals.

[0011] Its characteristic is that the active interference unit of the driving self-locking control device can have a variety of design forms: its two-speed control main body mechanism structure can specifically be a seesaw mechanism, or a single-button push-spring self-locking mechanism, or a double-button push-spring mechanism; its rigid interference part structure can specifically be a pin, a slot, a bolt, a spring pin, a spring slot, a spring slider, a spring caliper and other structures; and as a whole, the connection control between the two-speed control mechanism body and the simple structural parts such as pins, slots, and bolts can be directly integrated, while the connection control with the composite structural parts such as spring pins, spring slots, spring sliders, and spring calipers can be through a connecting rod, or a traction line, or a press contact control method.

[0012] Its characteristic is that the structural part with the interfered hole groove or cross-section feature matched with the interfered unit of the driving self-locking control device can be specifically: ① a ring body with the interfered hole groove or cross-section feature; ② a square body with the interfered hole groove or cross-section feature; ③ the crank itself with the interfered hole groove or cross-section feature; ④ the pedal shaft itself with the interfered hole groove or cross-section feature; ⑤ a strip body with the interfered hole groove feature; ⑥ a guide groove with the interfered hole groove feature.

[0013] Its characteristic is that when the pedal is in a rotational motion, a complete example of the drive self-locking control device is: the interfered unit is a circular ring body with an interference hole groove feature on the arc surface, and a square hole is provided in the center of the circular ring to match the square shaft section provided on the pedal shaft; the active interference unit is a seesaw mechanism with a latch interference part installed on the pedal, and a latch is provided at one end or both ends of the seesaw mechanism, and the latch is controlled by the rising and falling state of the two ends of the seesaw to keep the interfered unit in a distant state or an invading state.

[0014] Its characteristic is that in the case where the pedal is in a rotational motion, another complete example of the drive self-locking control device is: the interfered unit is a circular ring body with an interference hole groove feature on the arc surface, and a square hole is arranged in the center of the circular ring to match the square shaft section provided on the pedal shaft; the active interference unit is a seesaw mechanism with a spring pin interference part installed on the pedal, and one end of the seesaw and the pin body are controlled by a movable connecting rod, and the pin is controlled by the rising and falling states of the two ends of the seesaw to keep the interfered unit in a distant state or an invading state.

[0015] Its characteristic is that in the case where the pedal is in a rotational motion, another complete example of the drive self-locking control device is: the interfered unit is a circular ring body with an interference hole groove feature on the arc surface, and a square hole is arranged in the center of the circular ring to match the square shaft section provided on the pedal shaft; the active interference unit is a seesaw mechanism with a spring pin interference part installed on the pedal, and a traction line is arranged at one end of the seesaw and the pin body for control, and the pin is controlled by the traction line to the rise and fall state of the two ends of the seesaw so as to keep the interfered unit in a distance state or an invasion state.

[0016] Its characteristic is that in the case where the pedal is in a rotational motion, another complete example of the drive self-locking control device is: the interfered unit is a circular ring body with an interfered hole groove feature on the arc surface, and a square hole is arranged in the center of the circular ring to match the square shaft section provided on the pedal shaft; the active interference unit is a seesaw mechanism with a spring pin interference part installed on the pedal, one end of the seesaw and the pin body adopt a press-contact control method and are matched with a contact inclined surface (the press-contact matching surfaces can both be inclined surfaces, or one of them can be set with an inclined surface), and the pin is controlled by the rise and fall state of the two ends of the seesaw to be in a distance state or an invasion state with respect to the interfered unit.

[0017] Its characteristic is that in the case where the pedal is in a rotational motion, another complete example of the drive self-locking control device is: the interfered unit is a crank with an interfered hole groove feature, or a torus with an interfered hole groove feature on the end face, or a torus with an interfered hole groove feature on the arc surface, and a square hole is provided in the center to match the square shaft section provided on the pedal shaft; the active interference unit is a single-button push-to-pop self-locking mechanism with a spring pin interference part installed on the pedal, the button body and the pin body adopt a press-contact control method and are matched with contact inclined surfaces (the press-contact matching surfaces can both be inclined surfaces, or one of them can be set with an inclined surface), and the pin is controlled by the rise and fall state of the two ends of the seesaw to make the interfered unit in a distant state or an invading state.

[0018] Its characteristic is that in the case where the pedal is in a rotational motion, another complete example of the drive self-locking control device is: the interfered unit is a circular ring body with an interfered cross-sectional feature, and a square hole is arranged in the center thereof to match the square shaft section arranged on the pedal shaft; the active interference unit is a single-button push-and-pop self-locking mechanism with a bolt block interference part installed on the pedal, and the button body has a bolt block structure, and the bolt block is synchronized with the pressed state or the pop-up state of the button to make the movement of the interfered unit a distant state or an intrusive state.

[0019] Its characteristic is that in the case where the pedal is in a rotational motion, another complete example of the drive self-locking control device is: the interfered unit is a circular ring body with an interference groove feature on the end face, and a square hole is arranged in the center to be installed in conjunction with the square shaft section provided on the pedal shaft; the active interference unit is a single-button push-and-pop self-locking mechanism with a spring caliper interference part installed on the pedal, the button body and the caliper adopt a press-contact control method, and a contact slope is arranged in conjunction with the button body, and the caliper head is controlled by the press-down and pop-up states of the push-and-pop self-locking mechanism to be in a distance state or an intrusion state with respect to the interfered unit.

[0020] Its characteristic is that in the case where the pedal is in a rotational motion, another complete example of the drive self-locking control device is: the interfered unit is a crank with an interfered hole groove feature; the active interference unit is a double-button push-spring mechanism with a spring slider interference part installed on the pedal, the two button bodies and the slider adopt a press-contact control method, and two matching contact inclined surfaces are set on the slider, and a groove is set at the root of one of the inclined surfaces to match and interlock with the "L"-shaped structure at the bottom of the button, and the other inclined surface is used to unlock with another button. The slider is controlled by the two pressing states of interlocking and unlocking of the two buttons to be in a distance state or an invasion state with the interfered unit.

[0021] Its characteristic is that in the case where the pedal is in a vertical up and down reciprocating motion, a complete example of the drive self-locking control device is: the interfered unit is a strip-shaped body with an interfered hole groove feature, one end of which is movably connected to the pedal shaft; the active interference unit is a seesaw mechanism with a latch interference part installed on the pedal, one end of the seesaw is provided with one or two latches, and the latches are controlled by the rising and falling states of the two ends of the seesaw to keep the interfered unit in a distant state or an invading state.

[0022] Its characteristic is that in the case where the pedal is in a vertical up and down reciprocating motion, another complete example of the drive self-locking control device is: the interfered unit is the ordinary pedal shaft itself; the active interference unit is a seesaw mechanism with a groove / bolt block interference part installed on the pedal, and one end or both ends of the seesaw are provided with a controlled groove body (or bolt block), and the groove body is controlled by the rising and falling state of the two ends of the seesaw to control the movement of the interfered unit to be a moving away state or an invading state; this active interference unit structure has a deformation design, and the groove structure part can be simplified and deformed into a bolt block structure part, invading the space of the pedal shaft in the pedal slide groove and forming a groove space with the slide groove to achieve limiting the movement of the pedal shaft.

[0023] Its characteristic is that in the case where the pedal is in a vertical up and down reciprocating motion, another complete example of the drive self-locking control device is: the interfered unit is the ordinary pedal shaft itself; the active interference unit is a single-key push-and-pop self-locking mechanism with a spring groove interference part installed on the pedal, and the button body is provided with an extended synapse and directly presses and contacts with the groove body, and can adopt two methods of thrust spring and tension spring. The groove body is controlled by the button pressing state or the pop-up state to be away from the interfered unit or the intrusion state; this structure has a deformation design, and the groove structure part can be deformed into a bolt block structure, invading the space of the pedal shaft in the pedal slide groove and forming a groove space with the slide groove to achieve limiting the movement of the pedal shaft.

[0024] Its characteristic is that in the case where the foot pedal is in a vertical up and down reciprocating motion form, another complete example of the drive self-locking control device is: the interfered unit is a guide slide groove with an interference hole groove feature, which is installed on the vehicle body; the active interference unit is a double-button push-spring mechanism with a spring slider interference part installed on the foot pedal, the two button bodies and the slider adopt a press-contact control method and are matched with contact inclined surfaces, and the root of one of the inclined surfaces of the slider is matched with the button to form an interlocking groove, the slider is controlled by the interlocking and unlocking states of the two buttons, so as to be in a distance state or an intrusion state with the interfered unit.

[0025] Another object of the present invention is to provide a bicycle, toy car or fitness car and equipment using the pedal drive system.

[0026] The above invention object of the present invention is achieved through the following technical solutions:

[0027] The pedal drive system is adopted on bicycles, toy cars or fitness cars and equipment.

[0028] Through the above technical solution, the beneficial effects of the standing bicycle provided by the present invention are:

[0029] 1. The rider has a larger support surface and the pedals are always level and stable, which makes it easier for the rider to stand and pedal more steadily.

[0030] 2. The rider's feet can be locked at the same height as the left and right pedals at any time by controlling the drive system, so that the rider can stop pedaling and switch to a comfortable standing position with both feet at the same height.

[0031] 3. The implementation structure is simple, the reliability is high, and the economy is high. It can be widely used in bicycles with 2 wheels, 3 wheels, 4 wheels and more wheels, scooters, toy cars, fitness bikes and equipment, etc.

[0032] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 , the pedal is in a rotary reciprocating motion form - the front and rear two sets of drive form an array queue arrangement installation diagram

[0034] Among them, front drive group-1, rear drive group-2, front crank middle shaft-3, left front crank-4, right front crank-5, left front pedal shaft-6, right front pedal shaft-7, rear crank middle shaft-8, left and right cranks-9, right rear crank-10, left rear pedal shaft-11, right rear pedal shaft-12, left pedal-13, right pedal-14, left drive self-locking control device-15, right drive self-locking control device-16, left active interference unit-17, left interfered unit-18, right active interference unit-19, right interfered unit-20;

[0035] Figure 2 , the pedal is in a vertical up and down reciprocating motion form - the front and rear drive groups form a mirror symmetrical arrangement installation diagram

[0036] Among them, front drive group-1, rear drive group-2, front crank middle shaft-3, left front crank-4, right front crank-5, left front pedal shaft-6, right front pedal shaft-7, rear crank middle shaft-8, left and right cranks-9, right rear crank-10, left rear pedal shaft-11, right rear pedal shaft-12, left pedal-13, right pedal-14, chain-21, front crank middle shaft sprocket-22, rear crank middle shaft sprocket-23, motion guide slider-24, motion guide slide-25, gear one-26, gear two-27, gear three-28, gear four-29;

[0037] Figure 3 , a collection of schematic diagrams of some examples of the structure style of the interfered unit of the driving self-locking control device

[0038] Figure 4 , the active interference unit driving the self-locking control device is an example of a seesaw mechanism (an integrated structure) with a latch interference part Figure 1

[0039] Figure 5 Schematic diagram of the active interference unit driving the self-locking control device being a seesaw mechanism with a spring pin interference portion (connected by a connecting rod)

[0040] Figure 6 Schematic diagram of the active interference unit driving the self-locking control device being a seesaw mechanism with a spring pin interference portion (for traction line connection control)

[0041] Figure 7 Schematic diagram of the active interference unit driving the self-locking control device being a seesaw mechanism with a spring pin interference portion (for press contact control)

[0042] Figure 8 Schematic diagram of the active interference unit of the self-locking control device, which is a single-button push-to-pop self-locking mechanism with a spring pin interference portion (for push-contact control)

[0043] Fig. 9 , the active interference unit of the self-locking control device is a single-button push-to-pop self-locking mechanism with a bolt block / latch interference part (an integrated structure) Example diagram

[0044] Fig.10 Schematic diagram of the active interference unit of the self-locking control device, which is a single-button push-to-pop self-locking mechanism with a spring caliper interference part (for push-contact control)

[0045] Fig.11 , the active interference unit of the self-locking control device is a double-button push-spring mechanism with a spring slider interference part (for press-contact control) Figure 1

[0046] Fig.12 , the active interference unit driving the self-locking control device is a seesaw mechanism with a latch interference part (an integrated structure) Figure 2

[0047] Fig.13 Schematic diagram of the active interference unit driving the self-locking control device being a seesaw mechanism (integrated structure) with a groove / bolt interference portion

[0048] Fig.14Schematic diagram of the active interference unit of the self-locking control device, which is a single-button push-to-pop self-locking mechanism with a spring groove interference portion (for push-contact control)

[0049] Fig.15 , the active interference unit of the self-locking control device is a double-button push-spring mechanism with a spring slider interference part (for press-contact control) Figure 2 Implementation

[0050] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, nor are they exhaustive of all forms. Functional, methodological, or structural equivalent changes or substitutions made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0051] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0052] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention. These changes involve related technologies well known to those skilled in the art, which all fall within the scope of protection of the patent of the present invention.

[0053] Embodiment 1:

[0054] like Figure 1 As shown: the pedal is in a horizontal rotation motion style;

[0055] This style: has 2 drive groups (including front drive group-1 and rear drive group-2, specifically: front crank middle axis-3, left front crank-4, right front crank-5, left front pedal shaft-6, right front pedal shaft-7, rear crank middle axis-8, left rear crank-9, right rear crank-10, left rear pedal shaft-11, right rear pedal shaft-12) arranged in an array queue for installation, and has two pedals with assembly holes (left pedal 13, right pedal 14) on the left and right, each pedal has 2 assembly holes, and the hole spacing is equal to the spacing between the two crank middle axes, for respectively installing the left and right side pedal shafts (left front pedal shaft 6, left rear pedal shaft 11, right front pedal shaft 7, right rear pedal shaft 12), so as to assemble a pedal that is supported by the pedal shaft and always rotates in a horizontal state, so that the rider can obtain a larger and more stable support surface for more convenient standing pedaling driving.

[0056] Furthermore, two sets of driving self-locking control devices (driving self-locking control device-15, driving self-locking control device-15) are provided to realize the control of driving self-locking at the same height of the two pedals, so that the rider can stand comfortably with both feet at the same height when the driving pedaling is stopped. The driving self-locking control device is composed of an active interference unit installed on the pedals and an interference unit matched with the driving structure or the vehicle body, and the specific structure is as follows:

[0057] A form of driving a self-locking control device, such as Figure 4 As shown: an active interference unit, a seesaw mechanism with a latch, is provided on the pedal, and the latch and the seesaw are integrated into a structure; an interference unit, a ring body with interference hole groove features, is provided on the pedal shaft (its three-dimensional structure is shown in FIG. Figure 3 - Example 1). The rider drives the pedal and pedal shaft to move by stepping on the seesaw mechanism: when the front end of the seesaw under the foot is controlled to fall, the control pin is away from the interfered unit, and the drive is free; when the front end of the seesaw under the foot is lifted up and close to the interfered unit, the two pedals move to the same height, the hole slot of the interfered unit is exposed, and the pin head is inserted to cause interference, then the drive is locked so that the rider can stand and rest comfortably with both feet at the same height.

[0058] Another form of driving self-locking control device, such as Figure 5 As shown: an active interference unit is provided on the pedal, i.e. a seesaw mechanism with a spring pin, and the front end of the seesaw and the end of the pin body are controlled by a movable connecting rod; an interference unit is provided on the pedal shaft, i.e. a ring body with interference hole groove features (its three-dimensional structure is as shown in FIG. Figure 3- Example 1). The rider drives the pedal and pedal shaft to move by stepping on the seesaw mechanism: when the front end of the seesaw under the foot is controlled to fall, the control pin is away from the interfered unit and the drive is free; when the front end of the seesaw under the foot is lifted, the release pin invades the interfered unit, and when the two pedals move to the same height, the hole slot of the interfered unit is exposed and the pin head is inserted to cause interference, the drive is locked so that the rider can stand and rest comfortably with both feet at the same height.

[0059] Another form of driving self-locking control device, such as Figure 6 As shown: an active interference unit is provided on the pedal, i.e., a seesaw mechanism with a spring pin, and the rear end of the seesaw and the end of the pin body are controlled by a traction line; an interference unit is provided on the pedal shaft, i.e., a torus with interference hole groove features (its three-dimensional structure is shown in FIG. Figure 3 - Example 1). The rider drives the pedal and pedal shaft to move by stepping on the seesaw mechanism: when the front end of the seesaw under the foot is controlled to fall, the control pin is away from the interfered unit and the drive is free; when the front end of the seesaw under the foot is lifted, the release pin invades the interfered unit, and when the two pedals move to the same height, the hole slot of the interfered unit is exposed and the pin head is inserted to cause interference, the drive is locked so that the rider can stand and rest comfortably with both feet at the same height.

[0060] Another form of driving self-locking control device, such as Figure 7 As shown: an active interference unit, a seesaw mechanism with a spring pin, is provided on the pedal, and the front end of the seesaw and the end of the pin are provided with matching inclined surfaces in a press contact control manner (one of them can be provided with a matching inclined surface, or both can be provided with matching inclined surfaces); an interference unit, a ring body with interference hole groove features, is provided on the pedal shaft (its three-dimensional structure is shown in FIG. Figure 3 - Example 1). The rider drives the pedal and pedal shaft to move by stepping on the seesaw mechanism: when the front end of the seesaw under the foot is controlled to fall, the control pin is away from the interfered unit and the drive is free; when the front end of the seesaw under the foot is lifted, the release pin invades the interfered unit, and when the two pedals move to the same height, the hole slot of the interfered unit is exposed and the pin head is inserted to cause interference, the drive is locked so that the rider can stand and rest comfortably with both feet at the same height.

[0061] Another form of driving self-locking control device, such as Figure 8 As shown: an active interference unit is provided on the pedal - a single-button push-and-pop self-locking mechanism with a spring pin, and the button and the end of the pin are controlled by pressing contact and provided with a matching inclined surface (one of them can be provided with a matching inclined surface, or both can be provided with a matching inclined surface); according to the overall layout structural direction of the active interference unit, the interfered unit can have a variety of styles - a circular ring body installed on the pedal shaft, with an interfered hole groove feature on the arc surface (its three-dimensional structure is as shown in FIG. Figure 3 - Example 1), or a torus with an interference hole feature on the end face (its three-dimensional structure is as follows Figure 3 -Example 4), or a crank with interference hole features (whose three-dimensional structure is as follows Figure 3 - Example 8). The rider steps on the push-and-pop self-locking mechanism to change the button to the pressed state, the button squeezes the pin away from the interfered unit, and the drive moves freely; and steps on the push-and-pop self-locking mechanism again to change the button to the pop-up state, the button release pin head invades the interfered unit, and when the two pedals move to the same height, the hole slot of the interfered unit is exposed and the pin head is inserted to cause interference, then the drive is locked so that the rider can stand and rest comfortably with both feet at the same height.

[0062] Another form of driving self-locking control device, such as Fig. 9 As shown: the pedal is provided with an active interference unit - a push-and-pop self-locking mechanism with a bolt body, and the bolt body and the button body are integrated into a structure; the pedal shaft is provided with an interference unit - a ring body with interference section features (its three-dimensional structure is as shown in FIG. Figure 3 - Example 2). The rider steps on the button of the push-and-pop self-locking mechanism to the pressed state, the bolt moves away from the interfered unit, and the drive is free; when the button of the push-and-pop self-locking mechanism is stepped on again, the bolt invades and squeezes the movement space of the interfered unit, and when the two pedals move to the same height, the cross section of the interfered unit releases the complete space for the bolt to invade and interfere, and the drive is locked so that the rider can stand and rest comfortably with both feet at the same height.

[0063] Another form of driving self-locking control device, such as Fig.10 As shown: an active interference unit is provided on the pedal, i.e., a single-button push-and-pop self-locking mechanism with a spring caliper; the button and the caliper are controlled by a pressing contact method, and a matching inclined surface is provided on the button body; an interference unit is provided on the pedal shaft or crank, i.e., a circular ring with interference groove features (its three-dimensional structure is as shown in FIG. Figure 3 -Example 3), or a square body with interference and groove features (its three-dimensional structure is as follows Figure 3 - Example 6). The rider presses the button of the push-and-pop self-locking mechanism to the pressed state, squeezes the caliper head away from the interfered unit, and drives the movement freely. The rider presses the button of the push-and-pop self-locking mechanism again to the pop-up state, releases the caliper head from invading the interfered unit, and when the two pedals move to the same height, the slot of the interfered unit releases the complete space for the caliper head to intrude and interfere, and then the drive is locked so that the rider can stand and rest comfortably with both feet at the same height.

[0064] Another form of driving self-locking control device, such as Fig.11 As shown in the figure: a double-button push-spring mechanism with an active interference unit is provided on the pedal, and a pressing contact control is provided between the two button main body structures and the slider, and two matching inclined surfaces are provided on the slider main body, and a groove is provided at the root of one inclined surface of the slider to form an interlocking structure with the "L"-shaped bottom of the button 1 when pressed, and the other button 2 and the other inclined surface of the slider form an unlocking structure; the interfered unit is a crank with an interfered hole groove feature (its three-dimensional structure is as shown in the figure). Figure 3- Example 8). By pressing button 1, the slider is interlocked to control the slider to stay away from the interfered unit and drive the slider to move freely; by pressing button 2, the interlock between the slider and button 1 is released to release the slider to invade the interfered unit. When the two pedals move to the same height, the hole groove of the interfered unit is exposed and the slider head invades and interferes, then the drive is locked so that the rider can stand and rest with both feet at the same height.

[0065] Embodiment 2:

[0066] like Figure 2 Shown: The foot pedal moves vertically up and down.

[0067] This style: There are 2 drive groups (including front drive group-1 and rear drive group-2, specifically: front crank middle shaft-3, left front crank-4, right front crank-5, left front pedal shaft-6, right front pedal shaft-7, rear crank middle shaft-8, left rear crank-9, right rear crank-10, left rear pedal shaft-11, right rear pedal shaft-12) arranged in an array queue, and there are two pedals with assembly holes (left pedal-13, right pedal-14) on the left and right, arranged in a mirror-symmetrical manner, and the front and rear crank middle shafts are installed by installing the front crank middle shaft sprocket-22, the rear The crankshaft sprocket-23 and the chain-21 are connected in an "∞" winding manner, or by installing a pair of gears in meshing manner, constraining the two drive groups to be mirror-image linkage at the same frequency and speed, and the assembly hole groove on the pedal is specifically a two-cavity slide groove, so that the left and right pedal shafts (left front pedal shaft 6, left rear pedal shaft 11, right front pedal shaft 7, right rear pedal shaft 12) are respectively installed in the slide groove cavity for mirror-image synchronous linkage, so that the pedal supported by the pedal shaft is always in a horizontal state and vertically reciprocating up and down, so that the rider can obtain a larger and more stable support surface for convenient standing driving. In addition, in order to prevent the pedal from sliding forward and backward, a motion guide slider-24 can be installed on the pedal, and a motion guide slide groove-25 can be installed on the vehicle body.

[0068] Furthermore, a driving self-locking control device is provided to control the driving self-locking at the same height of the two pedals, so that the rider can stand comfortably with both feet at the same height when the driving pedal stops. The driving self-locking control device is composed of an active interference unit installed on the pedals and an interference unit matched with the driving structure or the vehicle body, and the specific structure is as follows:

[0069] A form of driving a self-locking control device, such as Fig.12 As shown: an active interference unit is provided on the pedal, i.e., a seesaw with a latch, the latch and the seesaw are integrated into a structure; an interference unit is provided on the pedal shaft, i.e., a strip body with interference hole characteristics, one end of which is movably connected to the pedal shaft (the three-dimensional structure is shown in FIG. Figure 3- Example 7). The rider moves the pedal and pedal shaft by stepping on the seesaw: when the front end of the seesaw is tilted up, the pin is away from the interfered unit, and the drive moves freely; when the front end pin of the seesaw is dropped close to the interfered unit, and the two pedals move to the same height, the hole of the interfered unit is exposed and the pin head invades, causing interference, and the drive is locked so that the rider can stand and rest with both feet at the same height.

[0070] Another form of driving self-locking control device, such as Fig.13 As shown: a seesaw with an active interference unit - a groove / bolt block is provided on the pedal, and the groove / bolt block and the seesaw form an integrated structure; the interfered unit is an ordinary pedal shaft. The rider moves the pedal and the pedal shaft by stepping on the seesaw: when the front end of the seesaw is controlled to fall down, the latch is away from the interfered unit, and the drive moves freely; when the front end of the seesaw is controlled to tilt up so that the groove body presses against the pedal shaft of the interfered unit, and the two pedals move to the same height, the pedal shaft of the interfered unit falls into the groove, resulting in restricted movement and interference, and the drive is locked so that the rider can stand and rest with both feet at the same height; according to this characteristic and the characteristic of the groove restricting the movement of the pedal shaft, the groove can be simplified in design to have the bolt block shape also invade the pedal slide groove as shown in the figure, and match the space with the slide groove to complete the structural form that restricts the movement of the pedal shaft, so there is Fig.13 - Example 2, Fig.13 -Example 4, Fig.13 -The bolt block type structure style in Example 6.

[0071] Another form of driving self-locking control device, such as Fig.14 As shown: a single-button push-and-pop self-locking mechanism with an active interference unit - a spring groove / bolt block is provided on the pedal, and the button body is provided with a contact foot and the groove body to realize control by pressing contact, and the interfered unit is an ordinary pedal shaft. The rider presses the push-and-pop self-locking mechanism to the pressed state, pushes the groove body to keep away from the pedal shaft, and drives the movement freely, and presses the push-and-pop self-locking mechanism again to the pop-up state, releases the groove body to lift up to invade the movement space of the pedal shaft, and when the two pedals move to the same height, the pedal shaft falls into the groove, restricting the movement of the pedal shaft to lock the drive, so that the rider can stand with both feet at the same height to rest; according to the characteristic of limiting the movement of the pedal shaft by the groove, the groove can be simplified in design to be in the shape of a bolt block as shown in the figure, and also invades the pedal slide groove, and matches the space with the slide groove to complete the structural form of limiting the movement of the pedal shaft, so there is Fig.14 - The bolt block structure style of Examples 2 and 3. Fig.14 - The thrust spring method in examples 1, 2, and 3 can also be Fig.14 - Example 4 uses a tension spring.

[0072] Another form of driving self-locking control device, such as Fig.15As shown: a double-button push-spring mechanism with an active interference unit-a spring slider is provided on the pedal, the two button main body structures and the slider are provided with two matching inclined surfaces for pressing contact control, and a groove is provided at the root of one inclined surface of the slider to interlock with the "L"-shaped structure at the bottom of the button 1 when pressed, and the other button 2 and the other inclined surface of the slider form an unlocking, and the slider can also be a motion guide slider-24; the interfered unit is a guide slide groove with interference hole groove features installed on the vehicle body (the three-dimensional structure is as shown in FIG. Figure 3 - Example 9), which can also be a motion guide slot 25. By pressing button 1, the slider is interlocked to control the slider to keep a limited part of the slider moving in the slot, the slider and the slot are kept as a guide mechanism, and the drive is free to move; by pressing button 2, the slider and button 1 are interlocked, and the slider is released to invade the interfered unit. When the two pedals move to the same height and move to the position of the hole slot of the interfered unit, the drive is locked so that the rider can stand and rest with both feet at the same height.

[0073] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. These changes involve related technologies well known to those skilled in the art, which all fall within the scope of protection of the patent of the present invention.

Claims

1. A pedal drive system, characterized in that there are two drive groups consisting of a crank shaft and a crank and a pedal shaft, two pedals are arranged on the left and right, and both pedals are provided with assembly holes to assemble and constrain the pedal shafts on the same side to be driven to move.

2. The pedal drive system according to claim 1, characterized in that One specific structural form is that two groups of drives are arranged and installed in an array formation, and the assembly hole grooves on the pedal are specifically two assembly holes, and the hole spacing is equal to the spacing between the crank shafts of the two groups of drive groups, so as to assemble and constrain the pedal shaft on the same side to be driven to move.

3. The pedal drive system according to claim 1, characterized in that Another specific structural form is that the two drive groups are arranged and installed in a mirror-symmetrical state, and the crank center axes of the two drive groups are connected by installing sprockets and winding chains in an "∞" shape, or by installing pairs of gears that are engaged with each other. The assembly hole grooves on the pedals are specifically "I" or "V" or "￣V￣" shaped through-cavity slide grooves or two cavity slide grooves separated in the middle, so as to assemble and constrain the pedal shaft on the same side to be driven to move.

4. The pedal drive system according to claim 1, characterized in that The crankshafts of the two drive groups can be a whole single-shaft structure installed through the vehicle body, or the crankshaft of one of the drive groups can be a split two-section structure installed symmetrically on the left and right sides of the vehicle body.

5. The pedal drive system according to claim 1, characterized in that A motion guide mechanism is further provided in conjunction with the foot pedal and the vehicle body.

6. The pedal drive system according to claim 1, characterized in that A drive self-locking control device is further installed, and the device is designed to consist of two parts: an active interference unit and an interfered unit, which can make relative movement and controllably interfere with each other by driving movement: the active interference unit is a two-speed control mechanism with a rigid interference part structure, which is installed on the pedal, and is a functional mechanism for controlling the active and interfered units to be kept in a state of separation or an interference state; the passive interference unit can be an ordinary crank or pedal shaft itself, or a matching structural part with interfered hole grooves or cross-section features, which exists in the form of an integrated feature or is installed in the form of a component on the crank or pedal shaft or the vehicle body, and is a functional component for forming drive interference by the invasion of the matching active interference unit; the drive self-locking position of the controlled interference of the two units is designed to be an equal high state position of the left and right pedals.

7. The pedal drive system according to claim 6, characterized in that The active interference unit structural form of the driving self-locking control device can be various: the main structure of the two-speed control mechanism can be a seesaw mechanism, a single-button push-to-pop self-locking mechanism, or a double-button push-to-pop mechanism; the rigid interference part structure it carries - can be a pin, a slot, a bolt, a spring pin, a spring slot, a spring slider, a spring caliper and other structures; and in terms of its overall structure, the connection control of the two-speed interference control mechanism with simple structural parts such as pins, slots and bolts can be directly an integrated structure, while the connection control with composite structural parts such as spring pins, spring slots, spring sliders and spring calipers can be through a connecting rod, a traction line, or a press-contact control method.

8. The pedal drive system according to claim 6, characterized in that The structural part with the interfered hole groove or cross-sectional feature matched with the interfered unit of the driving self-locking control device can specifically be: ① a ring body with the interfered hole groove or cross-sectional feature; ② a square body with the interfered hole groove or cross-sectional feature; ③ the crank itself with the interfered hole groove or cross-sectional feature; ④ the pedal shaft itself with the interfered hole groove or cross-sectional feature; ⑤ a strip body with the interfered hole groove feature; ⑥ a guide groove with the interfered hole groove feature.

9. The pedal drive system according to claim 2 or 6, characterized in that A complete example of the drive self-locking control device is: the interfered unit is a circular ring body with an interfered hole groove feature on the arc surface, and a square hole is provided in the center of the circular ring to match the square shaft section provided on the pedal shaft; the active interference unit is a seesaw mechanism with a latch interference part installed on the pedal, and a latch is provided at one end or both ends of the seesaw mechanism, and the latch is controlled by the rising and falling state of the two ends of the seesaw to keep away from the interfered unit or to invade the state.

10. The pedal drive system according to claim 2 or 6, characterized in that Another complete example of the drive self-locking control device is as follows: the interfered unit is a circular ring body with an interfered hole groove feature on an arc surface, and a square hole is provided in the center of the circular ring to be installed in combination with a square shaft section provided on the pedal shaft; the active interference unit is a single-button push-and-pop self-locking mechanism with a spring pin interference portion installed on the pedal, and the button body and the pin of the push-and-pop self-locking mechanism adopt a press-contact control method and are provided with a contact inclined surface, and the pin is controlled by the pressed squeezing state and the pop-up releasing state of the button to control the movement of the interfered unit to be in a moving-away state or an intruding state.

11. The pedal drive system according to claim 2 or 6, characterized in that Another complete example of the drive self-locking control device is: the interfered unit is a circular ring body with an arc surface and an interfered cross-sectional feature, and a square hole is provided in the center of the circular ring to be installed in combination with a square shaft section provided on the pedal shaft; the active interference unit is a single-button push-and-pop self-locking mechanism with a bolt block interference portion installed on the pedal, and the button body of the push-and-pop self-locking mechanism is provided with a bolt block structure, and the bolt block and the button are synchronously in a pressed state or a popped-up state to adjust the movement of the interfered unit to a distant state or an intrusive state.

12. The pedal drive system according to claim 2 or 6, characterized in that Another complete example of the drive self-locking control device is as follows: the interfered unit is a square body with an interfered hole groove feature, a square hole is arranged in the center of the body and is matched with the square shaft section arranged on the pedal shaft; the active interference unit is a single-button push-and-pop self-locking mechanism with a spring caliper interference part installed on the pedal, the button body of the push-and-pop self-locking mechanism and the caliper adopt a press-contact control method and a press-contact inclined surface is arranged on the button contact part, and the caliper is controlled by the pressed squeezing state and the pop-up away state of the button to control the movement of the interfered unit to be a away state or an intrusion state.

13. The pedal drive system according to claim 3 or 6, characterized in that Another complete example of the drive self-locking control device: the interfered unit is the ordinary pedal shaft itself; the active interference unit is a seesaw mechanism with a groove or bolt block interference part installed on the pedal, and one end or both ends of the seesaw are provided with a controlled groove body (or bolt block), and the groove body (or bolt block) is controlled by the rising and falling state of the two ends of the seesaw to move away from or invade the movement space of the interfered unit; the groove interference part of the active interference unit in this example can be simplified to a bolt block structure, so that the bolt block is controlled by the rising and falling state of the two ends of the seesaw to move away from or invade the activity space of the pedal shaft in the pedal slide groove.

14. The pedal drive system according to claim 3 or 6, characterized in that Another complete example of the drive self-locking control device: the interfered unit is a guide slide groove with an interference hole groove feature, which is installed on the vehicle body; the active interference unit is a double-button push-spring mechanism with a spring slider interference part installed on the foot pedal, the two button bodies and the slider adopt a press-contact control method, and two press-contact inclined surfaces are matched with the slider, and a groove is provided at the root of one of the inclined surfaces to interlock with the "L"-shaped structure at the bottom of the button, and the other inclined surface is used to unlock with another button. The slider is controlled by the interlocking and unlocking pressing states of the two buttons to be in a distance state or an intrusion state with the interfered unit.

15. A bicycle, characterized in that: A pedal drive system comprising any one of claims 1-14.

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