Portable rest footrest assembly

Abstract

The utility model discloses portable rest footrest subassembly relates to electric bicycle technical field, can solve the technical problem of narrow application scene of electric bicycle footrest. Footrest subassembly, including first crank, second crank: first crank includes first connecting hole and second connecting hole, and second crank includes third connecting hole and fourth connecting hole, and first connecting hole is connected with third connecting hole through the axle, and first connecting hole, second connecting hole, third connecting hole and fourth connecting hole all are connected with quick -release joint, and one footrest is detachably connected with first connecting hole or second connecting hole through quick -release joint, and another footrest is detachably connected with third connecting hole or fourth connecting hole through quick -release joint. The utility model is applied to electric bicycle, and through adopting quick -release joint, makes footrest switchable installation position, can realize electric power drive when the foot of intermission alleviates fatigue, restores manpower drive when the sudden situation, and improves convenience and comfort degree.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and in particular to a portable rest pedal assembly. Background Technology

[0002] In the electric bicycle industry, pedals, as an important component for assisting riding and emergency propulsion, have always been a focus of user attention in terms of design and user experience. However, with the improvement of electric bicycle battery life, users' demand for pedals has gradually decreased.

[0003] For electric bicycles without a footrest platform, users often place their feet on the pedals with one foot in front of the other when riding on electric power. Maintaining this posture for a long time can easily cause leg fatigue.

[0004] For electric bicycles with built-in footrests, users often choose to remove the pedals after purchase to reduce obstruction, as they rarely use them. However, this approach has significant drawbacks: when the electric bicycle encounters unexpected situations such as a dead battery or motor failure, the vehicle loses its electric drive, and the user has no choice but to dismount and push the bicycle if they wish to continue riding. Utility Model Content

[0005] To address one or more technical problems in the prior art, this utility model provides a portable rest pedal assembly, including a pedal, a first crank, a second crank, a chainring, and a bottom bracket: The first crank is connected to the chainring, and the first crank includes a first connecting hole and a second connecting hole. The second crank includes a third connecting hole and a fourth connecting hole. The first connecting hole and the third connecting hole are connected through the bottom bracket. The first connecting hole, the second connecting hole, the third connecting hole, and the fourth connecting hole are all connected to quick-release connectors. There are two foot pedals, one of which is detachably connected to the first connecting hole or the second connecting hole via the quick-release connector, and the other foot pedal is detachably connected to the third connecting hole or the fourth connecting hole via the quick-release connector.

[0006] Optionally, the quick-release connector includes a first connecting cylinder, with a collar sleeved on the outside of the first connecting cylinder. The collar is connected to the first connecting cylinder by a spring so that the collar can slide from a first position to a second position along the axial direction of the first connecting cylinder by squeezing the spring, and slide from the second position to the first position by means of the spring's rebound force. When the collar is in the first position, the quick-release connector is locked to restrict the relative movement between the foot pedal and the quick-release connector; When the collar is in the second position, the quick-release connector is in the unlocked state, and the foot pedal can be inserted or removed relative to the quick-release connector.

[0007] Optionally, the first connecting cylinder is provided with a fifth connecting hole, the fifth connecting hole including a first opening on the outer wall side of the first connecting cylinder and a second opening on the inner wall side of the first connecting cylinder, and a connecting bead is movably embedded in the fifth connecting hole; When the collar is in the first position, the connecting bead is squeezed and restricted by the collar and always protrudes from the second opening; When the collar is in the second position, the connecting bead can move within the fifth connecting hole and protrude from the first or second opening without falling out of the fifth connecting hole; The foot pedal has a first connector on its axle, and the first connector has a connecting groove. When the first connector is inserted into a designated position inside the first connecting cylinder, the connecting groove can engage with the connecting bead to connect the foot pedal to the quick-release connector.

[0008] Optionally, the outer wall of the first connecting cylinder is provided with a first protrusion and a second protrusion, and the collar includes a main body and a third protrusion. The third protrusion is connected to the inner wall of the main body and is disposed between the first protrusion and the second protrusion. The outer diameter of the first protrusion is larger than the inner diameter of the main body, and the outer diameter of the second protrusion is smaller than the inner diameter of the main body and larger than the inner diameter of the third protrusion, so as to limit the sliding stroke of the collar. The spring is positioned between the second protrusion and the third protrusion so that the spring can be compressed or rebound between the second protrusion and the third protrusion. When the collar is in the first position, the third protrusion covers the fifth connecting hole, so that the connecting bead is squeezed and restricted by the third protrusion and always protrudes from the second hole; When the collar is in the second position, the third protrusion is offset from the fifth connecting hole, so that the connecting bead can move within the fifth connecting hole and protrude from the first or second opening.

[0009] Optionally, when the collar is in the second position and the connecting bead protrudes from the first opening, the main body restricts the connecting bead so that it does not fall off from the first opening; The outer diameter of the second orifice is smaller than the outer diameter of the connecting bead, so that the connecting bead will not fall out of the second orifice.

[0010] Optionally, the bottom of the inner wall of the first connecting cylinder is provided with a first ramp portion, and the top of the first connector is provided with a second ramp portion that cooperates with the first ramp portion. When the first ramp portion and the second ramp portion are connected, the connecting groove engages with the connecting bead.

[0011] Optionally, the quick-release connector further includes a second connecting cylinder, which communicates with the first connecting cylinder and the second connecting cylinder and the first connecting cylinder are located on the same axis. The quick-release connector is connected to the first connecting hole, the second connecting hole, the third connecting hole, or the fourth connecting hole through the second connecting cylinder. The shaft is also provided with a second connector, which is connected to the first connector and located on the same axis. When the connecting groove engages with the connecting bead, the first connector is connected to the first connecting cylinder, and the second connector is connected to the second connecting cylinder.

[0012] Optionally, both the first connecting hole and the third connecting hole are connected to a conversion connector. The conversion connector includes an external threaded rod and an internal threaded hole. The external threaded rod is threadedly connected to the first connecting hole or the third connecting hole, and the internal threaded hole is threadedly connected to the second connecting cylinder.

[0013] Optionally, the quick-release connector is connected to the first connection hole or the third connection hole via an adapter, or directly connected to the second connection hole or the fourth connection hole, such that the top surface of the quick-release connector on the first connection hole side and the top surface of the quick-release connector on the second connection hole side are on the same plane, and the top surface of the quick-release connector on the third connection hole side and the top surface of the quick-release connector on the fourth connection hole side are on the same plane.

[0014] Optionally, the adapter includes an embedded part and an exposed part. The embedded part is embedded in the first connection hole or the third connection hole, and the outer diameter of the exposed part is larger than the inner diameter of the first connection hole or the third connection hole, so that the exposed part protrudes outside the first connection hole or the third connection hole.

[0015] The beneficial effects of this utility model are: When applied to electric bicycles, this invention uses a quick-release connector to allow the pedals to be switched in different positions, enabling users to rest their feet and relieve fatigue during electric driving and resume manual driving in case of emergencies, thus improving convenience and comfort. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] Figure 1 This is a perspective view of the foot pedal assembly in a stepping state according to an embodiment of the present utility model; Figure 2 This is a top view of the foot pedal assembly in the stepping state according to an embodiment of the present utility model; Figure 3 This is a perspective view of the foot pedal assembly in a resting state according to an embodiment of the present utility model; Figure 4 This is a top view of the foot pedal assembly in a resting state according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the foot pedal according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the first crank according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the second crank according to an embodiment of the present utility model; Figure 8 This is a perspective view of the quick-release connector according to an embodiment of the present utility model; Figure 9 This is a schematic diagram of the internal structure of the quick-release connector with the connecting beads concealed according to an embodiment of the present utility model; Figure 10 This is a schematic diagram of the internal structure of the quick-release connector including the connecting ball according to an embodiment of the present utility model; Figure 11 This is a schematic diagram of the connection process between the foot pedal and the quick-release connector according to an embodiment of the present utility model. Figure 1 ; Figure 12 This is a schematic diagram of the connection process between the foot pedal and the quick-release connector according to an embodiment of the present utility model. Figure 2 ; Figure 13 This is a schematic diagram of the connection process between the foot pedal and the quick-release connector according to an embodiment of the present utility model. Figure 3 ; Figure 14 This is a schematic diagram of the connection process between the foot pedal and the quick-release connector according to an embodiment of the present utility model. Figure 4 ; Figure 15 This is a perspective view of the adapter according to an embodiment of the present utility model; Figure 16 This is a schematic diagram of the internal structure of the adapter according to an embodiment of the present utility model; Figure 17 This is a schematic diagram of the connection between the quick-release connector and the adapter according to an embodiment of the present utility model.

[0018] In the picture: 1. Foot pedal; 11. Axle; 111. First connector; 1111. Connecting groove; 1112. Second ramp; 112. Second connector; 2. First crank; 21. First connecting hole; 22. Second connecting hole; 3. Second crank; 31. Third connecting hole; 32. Fourth connecting hole; 4. Crankset; 5. Central axis; 6. Quick-release connector; 61. First connecting cylinder; 611. Fifth connecting hole; 6111. First opening; 6112. Second opening; 612. Connecting bead; 613. First protrusion; 614. Second protrusion; 615. First ramp; 62. Collar; 621. Main body; 622. Third protrusion; 63. Spring; 64. Second connecting cylinder; 7. Adapter; 71. External threaded rod; 72. Internal threaded hole; 73. Embedded part; 74. Exposed part. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0020] It should be noted that, in order to clearly show the structural relationship of the internal key components of this utility model, some pipelines, lines, support brackets and other components of the actual product are omitted in the drawings. However, the specific design schemes of these omitted components are all easily implemented by those skilled in the art based on the technical solutions currently provided by this utility model and conventional design.

[0021] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0022] Example 1: like Figures 1-17 As shown, the portable rest pedal assembly includes a pedal 1, a first crank 2, a second crank 3, a chainring 4, and a bottom bracket 5. The first crank 2 is connected to the chainring 4. The first crank 2 includes a first connecting hole 21 and a second connecting hole 22. The second crank 3 includes a third connecting hole 31 and a fourth connecting hole 32. The first connecting hole 21 and the third connecting hole 31 are connected by the central shaft 5. The first connecting hole 21, the second connecting hole 22, the third connecting hole 31 and the fourth connecting hole 32 are all connected to quick-release connectors 6. There are two foot pedals 1. One foot pedal 1 is detachably connected to the first connecting hole 21 or the second connecting hole 22 through the quick-release connector 6, and the other foot pedal 1 is detachably connected to the third connecting hole 31 or the fourth connecting hole 32 through the quick-release connector 6.

[0023] In practice, when the electric bicycle is powered normally, the user can remove pedal 1 from the second connecting hole 22 and the fourth connecting hole 32 and install it at the first connecting hole 21 and the third connecting hole 31 to rest their feet and improve riding comfort. Conversely, when the power is insufficient, the user can quickly reset pedal 1 to restore the manual drive function and use the linkage between the crank and the chainring 4 to achieve manual drive.

[0024] In existing technologies, for electric bicycles without a footrest platform, users' legs easily become fatigued when riding for extended periods using electric power. For electric bicycles with a footrest platform, users can only push the bicycle in case of emergencies after removing the pedal 1. However, with the portable footrest assembly of this utility model, users can flexibly switch between electric and manual drive as needed. Users can install the pedal 1 at the first connecting hole 21 and the third connecting hole 31 as a footrest platform to alleviate leg fatigue; in case of emergencies, the pedal 1 can be installed at the second connecting hole 22 and the fourth connecting hole 32 for manual drive, eliminating the need to push the bicycle.

[0025] For the quick-release connector 6, various structural forms can be adopted, such as snap-on, threaded, and magnetic. A snap-on quick-release connector 6 can include a mating snap and a slot. The snap is located on the connecting hole side, and the slot is on the connecting part of the foot pedal 1. Pressing the snap separates the two, and releasing it engages them. A threaded quick-release connector 6 can have an internal thread in the connecting hole and an external thread on the connecting part of the foot pedal 1. Connection and disassembly are achieved by rotation. For quick operation, it can also be designed with a multi-start thread. A magnetic quick-release connector 6 can have strong magnets with opposite polarities on the connecting hole side and the connecting part of the foot pedal 1. A positioning structure can be provided to prevent relative rotation. Connection is achieved through magnetic attraction, and separation is achieved by applying a certain force.

[0026] Example 2: Furthermore, the quick-release connector 6 includes a first connecting cylinder 61, and a collar 62 is sleeved on the outside of the first connecting cylinder 61. The collar 62 is connected to the first connecting cylinder 61 by a spring 63 so that the collar 62 can slide from the first position to the second position along the axial direction of the first connecting cylinder 61 by squeezing the spring 63, and slide from the second position to the first position by means of the spring 63's rebound force. When the collar 62 is in the first position, the quick-release connector 6 is locked to restrict the relative movement between the foot pedal 1 and the quick-release connector 6. When the collar 62 is in the second position, the quick-release connector 6 is in the unlocked state, and the foot pedal 1 can be inserted and removed relative to the quick-release connector 6.

[0027] In practice, under normal conditions, the collar 62 is in the first position under the action of the spring 63, the quick-release connector 6 is locked, and the foot pedal 1 is stably connected. When the foot pedal 1 needs to be disassembled or reassembled, the collar 62 is slid to the second position, the quick-release connector 6 is unlocked, and after the operation is completed, the collar 62 is released, the spring 63 returns it to the first position, and the quick-release connector 6 is locked again. The locking and unlocking states can be achieved using various structural forms such as pin-hole fitting and eccentric wheel fitting. In the pin-hole fitting type, for example, the first connecting cylinder 61 has a pin hole, and the collar 62 has an elastic pin on its inner side; when the collar 62 is in the first position, the elastic pin is inserted into the pin hole, and the quick-release connector 6 is locked; when the collar 62 is slid to the second position, the elastic pin disengages from the pin hole, and the quick-release connector 6 is unlocked. In the eccentric wheel type, for example, the quick-release connector 6 includes an eccentric wheel and a mating groove, the eccentric wheel is linked with the collar 62; when the collar 62 is in the first position, the eccentric wheel is locked into the groove; when the collar 62 is slid, it drives the eccentric wheel to rotate and disengage from the groove, thus unlocking.

[0028] Example 3: Furthermore, the first connecting cylinder 61 is provided with a fifth connecting hole 611, which includes a first opening 6111 provided on the outer wall side of the first connecting cylinder 61 and a second opening 6112 provided on the inner wall side of the first connecting cylinder 61, and a connecting bead 612 is movably embedded in the fifth connecting hole 611. When the collar 62 is in the first position, the connecting bead 612 is squeezed and restricted by the collar 62 and always protrudes from the second opening 6112; When the collar 62 is in the second position, the connecting bead 612 can move within the fifth connecting hole 611 and protrude from the first hole 6111 or the second hole 6112 without falling out of the fifth connecting hole 611; The foot pedal 1 has a first connector 111 on its axle 11. The first connector 111 has a connecting groove 1111. When the first connector 111 is inserted into a designated position inside the first connecting cylinder 61, the connecting groove 1111 can engage with the connecting bead 612 to achieve the connection between the foot pedal 1 and the quick-release connector 6.

[0029] In specific implementation, the installation steps for foot pedal 1 are as follows: Figure 11 → Figure 14 As shown: When the first connector 111 is inserted into the first connecting cylinder 61, the collar 62 is in the second position, and the connecting bead 612 is squeezed and moves towards the first opening 6111. When the connecting groove 1111 reaches the position of the connecting bead 612, the connecting bead 612 partially enters the connecting groove 1111. The collar 62 is released to reset it to the first position, and the connecting bead 612 is squeezed and fixed, thus realizing the connection.

[0030] The steps for disassembling pedal 1 are as follows: Figure 14 → Figure 11 As shown: When the sliding collar 62 is moved to the second position, the connecting bead 612 can move. When the foot pedal 1 is pulled outward, the connecting bead 612 is squeezed and moves towards the first hole 6111, disengaging from the connecting groove 1111, thus completing the disassembly.

[0031] The number of fifth connecting holes 611 and their corresponding connecting beads 612 can be one, two or more. When multiple fifth connecting holes 611 are arranged, the multiple fifth connecting holes 611 can be evenly distributed along the circumference of the first connecting cylinder 61, so that the connecting beads 612 are more firmly fixed to the foot pedal 1.

[0032] Example 4: Furthermore, the outer wall of the first connecting cylinder 61 is provided with a first protrusion 613 and a second protrusion 614. The collar 62 includes a main body 621 and a third protrusion 622. The third protrusion 622 is connected to the inner wall of the main body 621. The third protrusion 622 is disposed between the first protrusion 613 and the second protrusion 614. The outer diameter of the first protrusion 613 is larger than the inner diameter of the main body 621. The outer diameter of the second protrusion 614 is smaller than the inner diameter of the main body 621 and larger than the inner diameter of the third protrusion 622, so as to limit the sliding stroke of the collar 62. The spring 63 is engaged between the second protrusion 614 and the third protrusion 622 so that the spring 63 can be compressed or rebound between the second protrusion 614 and the third protrusion 622. When the collar 62 is in the first position, the third protrusion 622 covers the fifth connecting hole 611, so that the connecting bead 612 is squeezed and restricted by the third protrusion 622 and always protrudes from the second hole 6112; When the collar 62 is in the second position, the third protrusion 622 is offset from the fifth connecting hole 611 so that the connecting bead 612 can move within the fifth connecting hole 611 and protrude from the first opening 6111 or the second opening 6112.

[0033] In practical implementation, the first protrusion 613 prevents the collar 62 from slipping off one end of the first connecting cylinder 61. The second protrusion 614 and the third protrusion 622 cooperate to restrict the collar 62 from slipping off one end of the first connecting cylinder 61. At the same time, the spring 63 resets the collar 62 between the second protrusion 614 and the third protrusion 622. The third protrusion 622 controls the state of the connecting bead 612 by covering or offsetting the fifth connecting hole 611, thereby locking and unlocking the quick-release connector 6.

[0034] Based on the above design, the sliding stroke of the collar 62 can be limited to prevent excessive sliding of the collar 62 from damaging the spring 63 or causing the quick-release connector 6 to malfunction. The spring 63 is locked in a fixed position to ensure even force distribution, extend its service life, and make the reset of the collar 62 more stable and reliable. The compression of the connecting bead 612 by the third protrusion 622 ensures that the connecting bead 612 is stable in the locked state of the quick-release connector 6, improving the stability of the foot pedal 1 connection.

[0035] Example 5: Furthermore, when the collar 62 is in the second position and the connecting bead 612 protrudes from the first opening 6111, the main body 621 restricts the connecting bead 612 so that it will not fall off from the first opening 6111. The outer diameter of the second opening 6112 is smaller than the outer diameter of the connecting bead 612, so that the connecting bead 612 will not fall off from the second opening 6112.

[0036] In practice, regardless of whether the connecting bead 612 protrudes into the first or second hole 6111, it is restricted by the corresponding structure to ensure that it always moves within the fifth connecting hole 611 and will not detach from the quick-release connector 6. This ensures the integrity and functional stability of the quick-release connector 6, preventing the pedal 1 from failing to connect or disassemble properly due to the connecting bead 612 falling off. Ensuring the controllable range of motion of the connecting bead 612 within the fifth connecting hole 611 allows for the stable implementation of the locking and unlocking functions of the quick-release connector 6, improving the reliability of the pedal 1's assembly and disassembly.

[0037] Example 6: Furthermore, the bottom of the inner wall of the first connecting cylinder 61 is provided with a first ramp portion 615, and the top of the first connecting head 111 is provided with a second ramp portion 1112 that cooperates with the first ramp portion 615. When the first ramp portion 615 and the second ramp portion 1112 are connected, the connecting groove 1111 and the connecting bead 612 are engaged.

[0038] In practical implementation, when installing the foot pedal 1, when the first connector 111 is inserted into the first connecting cylinder 61 and the first ramp 615 aligns with the second ramp 1112, the connecting groove 1111 precisely corresponds to and engages with the connecting bead 612, and the ramp structure restricts the first connector 111 from moving further forward. This allows for rapid positioning of the foot pedal 1, ensuring precise engagement between the connecting groove 1111 and the connecting bead 612, improving installation efficiency and avoiding installation difficulties due to misalignment. The engagement of the first ramp 615 with the second ramp 1112 restricts the first connector 111 from moving further forward, preventing over-insertion and damage to components, and ensuring the stability and safety of the connection structure.

[0039] Example 7: Furthermore, the quick-release connector 6 also includes a second connecting cylinder 64, which is connected to the first connecting cylinder 61 and the second connecting cylinder 64 and the first connecting cylinder 61 are located on the same axis. The quick-release connector 6 is connected to the first connecting hole 21, the second connecting hole 22, the third connecting hole 31 or the fourth connecting hole 32 through the second connecting cylinder 64. The shaft 11 is also provided with a second connector 112, which is connected to the first connector 111 and located on the same axis. When the connecting groove 1111 engages with the connecting bead 612, the first connector 111 is connected to the first connecting cylinder 61, and the second connector 112 is connected to the second connecting cylinder 64.

[0040] In practical implementation, the double-connecting structure formed by the double connecting cylinders (first connecting cylinder 61, second connecting cylinder 64) and the double connecting heads (first connecting head 111, second connecting head 112) transforms the connection between the foot pedal 1 and the quick-release connector 6 from a single point to two coaxial points, increasing the contact area and stability of the connection, while ensuring more even force transmission. The double-connecting structure makes the connection between the foot pedal 1 and the quick-release connector 6 more stable, reducing shaking during use, preventing wear or damage to components due to unstable connection, reducing the stress load on a single connection point, and extending the service life of the quick-release connector 6 and the foot pedal 1.

[0041] Example 8: Furthermore, both the first connecting hole 21 and the third connecting hole 31 are connected to a conversion connector 7. The conversion connector 7 includes an external threaded rod 71 and an internal threaded hole 72. The external threaded rod 71 is threadedly connected to the first connecting hole 21 or the third connecting hole 31, and the internal threaded hole 72 is threadedly connected to the second connecting cylinder 64.

[0042] In practical implementation, for cranks commonly found on the market, the diameters of the first connecting hole 21 / third connecting hole 31 and the second connecting hole 22 / fourth connecting hole 32 are usually different. The adapter 7, via its external threaded rod 71, is adapted to the first connecting hole 21 / third connecting hole 31, and its internal threaded hole 72 is adapted to the second connecting cylinder 64, enabling the quick-release adapter 6 to connect to connecting holes of different diameters. This solves the connection problem between connecting holes of different diameters and the quick-release adapter 6, making the quick-release adapter 6 universally applicable to the first connecting hole 21, third connecting hole 31, second connecting hole 22, and fourth connecting hole 32, eliminating the need to design different specifications of quick-release adapters 6 for connecting holes of different diameters, thus reducing production costs.

[0043] Example 9: Furthermore, the quick-release connector 6 is connected to the first connecting hole 21 or the third connecting hole 31 via the adapter connector 7, and the quick-release connector 6 is directly connected to the second connecting hole 22 or the fourth connecting hole 32, so that the top surface of the quick-release connector 6 on the first connecting hole 21 side and the top surface of the quick-release connector 6 on the second connecting hole 22 side are on the same plane, and the top surface of the quick-release connector 6 on the third connecting hole 31 side and the top surface of the quick-release connector 6 on the fourth connecting hole 32 side are on the same plane.

[0044] In practical implementation, for cranks commonly found on the market, the first connecting hole 21 / third connecting hole 31 and the second connecting hole 22 / fourth connecting hole 32 are usually not on the same plane. Therefore, by adjusting the adapter 7, the top surfaces of the quick-release connectors of each connecting hole can be made flush (e.g., Figure 2 , 4 As shown in the diagram, this ensures the stability and consistency of the overall structure. When pedal 1 is used as a resting platform, the user's feet are placed more comfortably, making it easier to rest. The two pedals 1 are spaced the same in different installation positions, ensuring that the user's foot position habits do not need to be changed when riding or resting after switching the installation position of pedal 1, thus improving the convenience and comfort of use.

[0045] Example 10: Furthermore, the adapter 7 includes an embedded part 73 and an exposed part 74. The embedded part 73 is embedded in the first connecting hole 21 or the third connecting hole 31, and the outer diameter of the exposed part 74 is larger than the inner diameter of the first connecting hole 21 or the third connecting hole 31, so that the exposed part 74 protrudes outside the first connecting hole 21 or the third connecting hole 31.

[0046] In practice, by designing exposed parts 74 of different sizes, when the adapter 7 is installed in the first connection hole 21 or the third connection hole 31, the quick-release connector 6 is connected to the adapter 7. The position after installation will change due to the different sizes of the exposed parts 74, thus ultimately achieving the adjustment of the installation distance of the foot pedal 1 to adapt to the foot size and usage habits of different users.

[0047] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable rest pedal assembly, comprising a pedal (1), a first crank (2), a second crank (3), a chainring (4), and a bottom bracket (5), characterized in that: The first crank (2) is connected to the chainring (4). The first crank (2) includes a first connecting hole (21) and a second connecting hole (22). The second crank (3) includes a third connecting hole (31) and a fourth connecting hole (32). The first connecting hole (21) and the third connecting hole (31) are connected through the central shaft (5). The first connecting hole (21), the second connecting hole (22), the third connecting hole (31) and the fourth connecting hole (32) are all connected to quick-release connectors (6). There are two foot pedals (1). One foot pedal (1) is detachably connected to the first connecting hole (21) or the second connecting hole (22) through the quick-release connector (6). The other foot pedal (1) is detachably connected to the third connecting hole (31) or the fourth connecting hole (32) through the quick-release connector (6).

2. The portable rest pedal assembly according to claim 1, characterized in that: The quick-release connector (6) includes a first connecting cylinder (61), and a collar (62) is sleeved on the outside of the first connecting cylinder (61). The collar (62) is connected to the first connecting cylinder (61) by a spring (63) so that the collar (62) can slide from a first position to a second position along the axial direction of the first connecting cylinder (61) by squeezing the spring (63), and slide from the second position to the first position by means of the rebound force of the spring (63). When the collar (62) is in the first position, the quick-release connector (6) is in a locked state to restrict the relative movement of the foot pedal (1) and the quick-release connector (6); When the collar (62) is in the second position, the quick-release connector (6) is in the unlocked state, and the foot pedal (1) can be inserted or removed relative to the quick-release connector (6).

3. The portable rest pedal assembly according to claim 2, characterized in that: The first connecting cylinder (61) is provided with a fifth connecting hole (611). The fifth connecting hole (611) includes a first opening (6111) provided on the outer wall side of the first connecting cylinder (61) and a second opening (6112) provided on the inner wall side of the first connecting cylinder (61). A connecting bead (612) is movably embedded in the fifth connecting hole (611). When the collar (62) is in the first position, the connecting bead (612) is squeezed and restricted by the collar (62) and always protrudes from the second opening (6112). When the collar (62) is in the second position, the connecting bead (612) can move within the fifth connecting hole (611) and protrude from the first opening (6111) or the second opening (6112) without falling out of the fifth connecting hole (611); The foot pedal (1) has a first connector (111) on its shaft (11). The first connector (111) has a connecting groove (1111). When the first connector (111) is inserted into the inner side of the first connecting cylinder (61) at a specified position, the connecting groove (1111) can engage with the connecting bead (612) to realize the connection between the foot pedal (1) and the quick-release connector (6).

4. The portable rest pedal assembly according to claim 3, characterized in that: The outer wall of the first connecting cylinder (61) is provided with a first protrusion (613) and a second protrusion (614). The collar (62) includes a main body (621) and a third protrusion (622). The third protrusion (622) is connected to the inner wall of the main body (621). The third protrusion (622) is disposed between the first protrusion (613) and the second protrusion (614). The outer diameter of the first protrusion (613) is larger than the inner diameter of the main body (621). The outer diameter of the second protrusion (614) is smaller than the inner diameter of the main body (621) and larger than the inner diameter of the third protrusion (622) to limit the sliding stroke of the collar (62). The spring (63) is engaged between the second protrusion (614) and the third protrusion (622) so that the spring (63) can be compressed or rebound between the second protrusion (614) and the third protrusion (622); When the collar (62) is in the first position, the third protrusion (622) covers the fifth connecting hole (611) so that the connecting bead (612) is squeezed and restricted by the third protrusion (622) and always protrudes from the second hole (6112). When the collar (62) is in the second position, the third protrusion (622) is offset from the fifth connecting hole (611) so that the connecting bead (612) can move within the fifth connecting hole (611) and protrude from the first opening (6111) or the second opening (6112).

5. The portable rest pedal assembly according to claim 4, characterized in that: When the collar (62) is in the second position and the connecting bead (612) protrudes from the first opening (6111), the main body (621) restricts the connecting bead (612) so that it does not fall off from the first opening (6111); The outer diameter of the second opening (6112) is smaller than the outer diameter of the connecting bead (612) so that the connecting bead (612) will not fall off from the second opening (6112).

6. The portable rest pedal assembly according to claim 5, characterized in that: The bottom of the inner wall of the first connecting cylinder (61) is provided with a first ramp (615) and the top of the first connector (111) is provided with a second ramp (1112) that cooperates with the first ramp (615). When the first ramp (615) and the second ramp (1112) are connected, the connecting groove (1111) and the connecting bead (612) are engaged.

7. The portable rest pedal assembly according to any one of claims 3 to 6, characterized in that: The quick-release connector (6) further includes a second connecting cylinder (64), which is in communication with the first connecting cylinder (61) and the second connecting cylinder (64) and the first connecting cylinder (61) are located on the same axis. The quick-release connector (6) is connected to the first connecting hole (21), the second connecting hole (22), the third connecting hole (31) or the fourth connecting hole (32) through the second connecting cylinder (64). The shaft (11) is also provided with a second connector (112), which is connected to the first connector (111) and located on the same axis. When the connecting groove (1111) is engaged with the connecting bead (612), the first connector (111) is connected to the first connecting cylinder (61), and the second connector (112) is connected to the second connecting cylinder (64).

8. The portable rest pedal assembly according to claim 7, characterized in that: Both the first connecting hole (21) and the third connecting hole (31) are connected to a conversion connector (7). The conversion connector (7) includes an external threaded rod (71) and an internal threaded hole (72). The external threaded rod (71) is threadedly connected to the first connecting hole (21) or the third connecting hole (31), and the internal threaded hole (72) is threadedly connected to the second connecting cylinder (64).

9. The portable rest pedal assembly according to claim 8, characterized in that: The quick-release connector (6) is connected to the first connecting hole (21) or the third connecting hole (31) via a conversion connector (7). The quick-release connector (6) is directly connected to the second connecting hole (22) or the fourth connecting hole (32) so that the top surface of the quick-release connector (6) on the side of the first connecting hole (21) and the top surface of the quick-release connector (6) on the side of the second connecting hole (22) are on the same plane, and the top surface of the quick-release connector (6) on the side of the third connecting hole (31) and the top surface of the quick-release connector (6) on the side of the fourth connecting hole (32) are on the same plane.

10. The portable rest pedal assembly according to claim 9, characterized in that: The adapter (7) includes an embedded part (73) and an exposed part (74). The embedded part (73) is embedded in the first connecting hole (21) or the third connecting hole (31). The outer diameter of the exposed part (74) is larger than the inner diameter of the first connecting hole (21) or the third connecting hole (31) so that the exposed part (74) protrudes outside the first connecting hole (21) or the third connecting hole (31).

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