A pedal structure with braking function

Abstract

The present invention discloses a pedal structure with a brake function, comprising a pedal shaft, a first pedal rotatably connected to the pedal shaft, the end of the first pedal being connected to a second pedal rotatable around the end surface of the first pedal, the pedal shaft being connected to a tensioning device, the tensioning device being connected to a slide bar mechanism, the slide bar mechanism being connected to the second pedal, and the tensioning device being connected to a brake cable. The present invention has the beneficial effects of realizing the brake function without manual operation, facilitating people with hand injuries or one-hand disabilities to ride a bicycle, eliminating potential safety hazards, and also being applicable to bicycles for the disabled specially for people with hand disabilities, with a wide range of applications.

Description

Technical Field

[0001] The invention relates to the technical field related to bicycles, and in particular to a pedal structure with a braking function. Background Art

[0002] At present, bicycles are still the mainstream means of transportation for short trips such as going to work, going to school or doing outdoor sports. The brakes of existing bicycles are mostly set on the handlebars of the bicycles, and the brakes are applied by holding the brake handles. If the rider has a hand injury or one hand is disabled, it is not possible to brake by holding the brake handles with both hands, which is inconvenient and dangerous. Summary of the invention

[0003] The present invention aims to overcome the disadvantage in the prior art that the brake is arranged on the handlebar and people with hand injuries or one-hand disability cannot operate the brake with both hands. A foot pedal is provided which can complete the brake operation by stepping on the pedal, thereby eliminating safety hazards and being suitable for a wider range of people to ride.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A pedal structure with a braking function comprises a pedal shaft, a first pedal rotatably connected to the pedal shaft, the end of the first pedal being connected to a second pedal rotatable around the end surface of the first pedal, the pedal shaft being connected to a tensioning device, the tensioning device being connected to a slide rod mechanism, the slide rod mechanism being connected to the second pedal, and the tensioning device being connected to a brake cable.

[0006] The first pedal is rotatably connected to the pedal shaft, and the foot can step on the first pedal to meet the normal bicycle riding. The second pedal is connected to the first pedal through a slide rod mechanism, and the second pedal can rotate around the end of the first pedal. At the same time, the slide rod mechanism is connected to the tensioning device. When the second pedal is stepped down by the foot, the tensioning device slides and tightens the brake cable to realize the braking function, which is simple to operate. The brake can be braked without hands, which is convenient to use.

[0007] Preferably, the tensioning device comprises: a pendulum block, a pull rod hinged to the pendulum block, the pull rod is fixedly connected to a limit block, the limit block is fixedly connected to a brake cable; the swing of the pendulum block drives the pull rod to slide, the pull rod is fixedly connected to the limit block, the limit block pulls the brake cable to achieve braking, and the structure is compact.

[0008] Preferably, the pedal shaft is provided with an annular groove, a wire hole, and a pair of stepped guide holes. The guide hole and the wire hole are connected to form a Y shape, and the guide hole is connected to the annular groove; this satisfies that the braking function can be realized after any upper or lower surface of the second pedal is stepped on, and it is easy to use.

[0009] Preferably, the pendulum block is socketed with the annular groove, the pull rod is socketed with the guide hole, and the limit block matches the guide hole; the pendulum block is an annular structure, and a pendulum block clearance hole is arranged at the center of the pendulum block. The diameter of the pendulum block clearance hole is sufficient to satisfy the swing of the pendulum block in the annular groove. The limit block slides in the guide hole, and when it reaches the end of the guide hole, the sliding of the limit block is restricted by the end surface of the guide hole, thereby achieving the limiting effect.

[0010] Preferably, the sliding rod mechanism includes: a sliding rod and a connecting rod. The sliding rod is L-shaped, and the connecting rod is hinged to the sliding rod and the end face of the second pedal respectively; the connecting rod is connected to the side face of the second pedal by a hinge, and the connecting rod can realize a swinging motion relative to the side face of the second pedal. When the second pedal rotates and tilts after being stepped on, the connecting rod and the sliding rod are hinged, and the connecting rod pulls the sliding rod to slide, and the end of the sliding rod can push the swing block to make it swing.

[0011] Preferably, the first pedal is provided with a pedal shaft hole with a recessed end face, the pedal shaft hole is stepped, and a guide groove is provided on the side wall of the small diameter hole, and the guide groove connects the large diameter hole and the end face of the first pedal; the slide rod can slide horizontally in the guide groove, the braking stroke is short, and the braking effect is good.

[0012] Preferably, the pendulum block is located in the large diameter hole of the pedal shaft hole, the slide rod is movably connected to the guide slide groove, and the end of the slide rod is adapted to the pendulum block; the end of the slide rod can push the pendulum block to make the pendulum block swing, and the pull rod connected to the pendulum block can slide and translate in the guide hole as the pendulum block swings, and the limit block tightens the pull wire.

[0013] Preferably, the second pedal is provided with a clearance hole, which is sleeved with the end of the pedal shaft; the pedal shaft extends into the clearance hole, and when the pedal is stepped on with too much force, the pedal shaft contacts the clearance hole, which can support the second pedal from separating from the first pedal and damaging the sliding rod mechanism, thereby extending the service life.

[0014] Preferably, an elastic sealing block is sleeved on the end of the pedal shaft, and the end of the elastic sealing block is clamped with the small diameter hole of the pedal shaft hole, and the elastic sealing block matches the clearance hole; the elastic sealing block can seal the gap between the first pedal and the pedal shaft to prevent debris from entering, and the elastic sealing block is arranged between the clearance hole and the pedal shaft. When the pedal is stepped on and tilted, the elastic sealing block is compressed to give feedback of elastic force to the sole of the foot, so that the rider can feel the braking operation. After lifting the foot, the compressed elastic sealing block rebounds, so that the second pedal returns to its original state.

[0015] Preferably, a sealing ring is provided at the connection between the end faces of the first pedal and the second pedal; the sealing ring is made of a flexible material to prevent debris from entering the connection gap between the first pedal and the second pedal, causing the second pedal to be unable to swing, thereby ensuring that the pedal brake function does not fail.

[0016] The beneficial effects of the present invention are:

[0017] By stepping on the second pedal, the sliding rod mechanism is pulled, so that the sliding rod mechanism cooperates with the swing block, and the tensioning device tightens the brake cable to realize the braking function without manual operation, which can facilitate people with hand injuries or one-hand disability to ride a bicycle and eliminate safety hazards. At the same time, it can also be applied to bicycles for disabled people with hand disabilities, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structural cross-sectional view I of the present invention;

[0019] Figure 2 It is the overall structural cross-sectional view II of the present invention;

[0020] Figure 3 It is a schematic diagram of the pendulum block structure of the present invention;

[0021] Figure 4 It is a sectional view of the overall structure of the present invention during braking action.

[0022] In the accompanying drawings,

[0023] 1. Pedal shaft, 11. Annular groove, 12. Guide hole, 13. Cable hole, 14. Pin hole, 2. First pedal, 21. Pedal shaft hole, 22. Annular clearance groove, 23. Guide slide groove, 3. Slide rod mechanism, 30 slide rod, 31. Connecting rod, 4. Second pedal, 40. Clearance hole, 41. Elastic sealing block, 42. Stopper, 5. Pendulum block, 51. Pendulum block clearance hole, 52 limit pin, 6. Tensioning device, 60. Pull rod, 61. Limit block, 7. Brake cable, 8. Sealing ring. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 1 In the embodiment shown, a pedal structure with a brake function includes a pedal shaft 1 and a first pedal 2 rotatably connected to the pedal shaft 1. The end of the first pedal 2 is connected to a second pedal 4 that can rotate around the end surface of the first pedal 2. The first pedal 2 and the second pedal 4 can rotate freely around the pedal shaft 1, meeting the function of a daily bicycle pedal. The pedal shaft 1 is connected to a tensioning device 6, the tensioning device 6 is connected to a slide bar mechanism 3, and the slide bar mechanism 3 is connected to the second pedal 4. The tensioning device 6 is connected to a brake cable 7.

[0026] like Figure 2-4As shown, the pedal shaft 1 is provided with an annular groove 11, a wire hole 13, and a pair of stepped guide holes 12. The guide holes 12 and the wire hole 13 are connected to form a Y shape, and the guide hole 12 is connected to the annular groove 11. The guide hole 12 is provided at the mounting end of the pedal shaft 1 of the annular groove 11, and the guide hole 12 is connected to the wire hole 13. The diameter of the end of the guide hole 12 connected to the wire hole 13 is larger than the end connected to the annular groove 11. The tensioning device 6 includes a pendulum block 5 and a pull rod 60 hinged to the pendulum block 5. The pull rod 60 is fixedly connected to a limit block 61, and the limit block 61 is fixedly connected to the brake cable 7. The pendulum block 5 is sleeved with the annular groove 11, the pull rod 60 is sleeved with the guide hole 12, and the limit block 61 matches the guide hole 12. The pull rod 60 is arranged in the guide hole 12. One end of the pull rod 60 is connected to the swing block 5 through a hinge, and the other end is fixedly connected to the limit block 61. The limit block 61 can slide in the guide hole 12. After the limit block 61 slides to the connection between the guide hole 12 and the wire hole 13, the diameter of the guide hole 12 is larger than the diameter of the wire hole 13. The limit block 61 will be stuck at the connection between the guide hole 12 and the wire hole 13, limiting the limit block 61 from continuing to slide, thus playing a limiting role. The slide bar mechanism 3 includes a slide bar 30 and a connecting rod 31. The slide bar 30 is L-shaped. The connecting rod 31 is hinged to the slide bar 30 and the end face of the second pedal 4 respectively. The first pedal 2 is provided with a pedal shaft hole 21 with a concave end face. The pedal shaft hole 21 is stepped. The side wall of the small diameter hole is provided with a guide groove 23. The guide groove 23 connects the large diameter hole and the end face of the first pedal 2. The slide bar 30 is arranged in the guide groove 23 and can slide in translation. The pendulum block 5 is located in the large diameter hole of the pedal shaft hole 21. The pendulum block 5 is an annular structure, and a pendulum block clearance hole 51 is provided at the center of the pendulum block 5, and a limit pin 52 is provided in the pendulum block clearance hole 51. A pin hole 14 parallel to the horizontal plane is provided in the annular groove 11, and the limit pin 52 fixed in the pendulum block clearance hole 51 is inserted into the pin hole 14, so that the pendulum block 5 is connected with the annular groove 11, and the assembly of the pendulum block 5 and the annular groove 11 is completed. The cross-sectional width of the large diameter hole of the pedal shaft hole 21 is the same as the cross-sectional width of the annular groove 11, and the large diameter hole of the pedal shaft hole 21 is aligned and connected with the two side walls of the annular groove 11, and is combined into a swing range cavity of the pendulum block 5, so that the pendulum block 5 swings around the limit pin 52. The slide rod 30 is movably connected with the guide slide groove 23, and the end of the slide rod 30 contacts the pendulum block 5 and pushes the pendulum block 5 to swing in the sliding direction of the slide rod 30. The connecting rod 31 is connected to the side of the second pedal 4 by a hinge, and the connecting rod 31 can realize a swinging motion relative to the side of the second pedal 4. When the second pedal 4 is flipped and tilted after being stepped on, the connecting rod 31 and the sliding rod 30 are hingedly connected. The connecting rod 31 pulls the sliding rod 30 to slide, and the end of the sliding rod 30 can push the pendulum block 5 to make it swing. The pull rod 60 connected to the pendulum block 4 slides and translates in the guide hole 12 as the pendulum block 5 swings, and the limit block 61 tightens the brake cable 7.

[0027] The second pedal 4 is provided with a clearance hole 40, which is sleeved with the end of the pedal shaft 1. An elastic sealing block 41 is sleeved with the end of the pedal shaft 1, and the end of the elastic sealing block 41 is clamped with the small diameter hole of the pedal shaft hole 21, and the side wall of the elastic sealing block 41 is in close contact with the inner wall of the clearance hole 40. The clearance hole 40 is a conical structure, and the clearance hole 40 is connected with the elastic sealing block 41, and the elastic sealing block 41 is connected to the first pedal 2. The elastic sealing block 41 is a hollow truncated cone structure, and a stopper 42 is provided in the middle of the elastic sealing block 41, and the stopper 42 can seal the gap between the first pedal 2 and the pedal shaft 1. The side wall of the elastic sealing block 41 is in close contact with the inner wall of the clearance hole 40, and the pedal shaft 1 passes through the first pedal 4 and the elastic sealing block 41. When the second pedal 4 is stepped on and rotated and tilted, the elastic sealing block 41 is compressed, giving feedback of elastic force to the sole of the foot, so that the rider feels that the brake operation is being performed. After lifting the foot, the compressed elastic sealing block 41 rebounds, so that the second pedal 4 returns to its original state. A sealing ring 8 is provided at the connection between the end surfaces of the first pedal 2 and the second pedal 4. The sealing ring 8 can prevent foreign matter from entering the gap between the first pedal 2 and the second pedal 4, thereby preventing foreign matter from getting stuck in the gap and making it impossible to achieve tilting movement, resulting in failure to brake by foot.

[0028] When braking is needed, the user only needs to press the side of the foot downward or move the foot outward to press the second pedal 4, so that the second pedal 4 rotates and flips and tilts, the connecting rod 31 pulls the sliding rod 30, the sliding rod 30 pushes the swing block 5 to swing, drives the pull rod 60 to slide, and the limit block 61 connected to the connecting rod 60 pulls the brake cable 7, so that the brake cable 7 is tightened to complete the braking operation. Release the pressed foot, the squeezed elastic sealing block 41 rebounds, the second pedal 4 returns to its original state, the tensioning device 6 releases the brake cable 7, the brake is released, and the riding continues.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pedal structure with a braking function, characterized in that: The invention comprises a pedal shaft (1), a first pedal (2) rotatably connected to the pedal shaft (1), the end of the first pedal (2) being connected to a second pedal (4) rotatable around the end surface of the first pedal (2), the pedal shaft (1) being connected to a tensioning device (6), the tensioning device (6) being connected to a slide rod mechanism (3), the slide rod mechanism (3) being connected to the second pedal (4), the tensioning device (6) being connected to a brake cable (7), the tensioning device (6) comprising: a pendulum block (5), a pull rod (60) hinged to the pendulum block (5), The pull rod (60) is fixedly connected to the limit block (61), and the limit block (61) is fixedly connected to the brake cable (7). The pedal shaft (1) is provided with an annular groove (11), a cable hole (13), and a pair of stepped guide holes (12). The guide holes (12) and the cable hole (13) are connected to form a Y shape. The guide hole (12) is connected to the annular groove (11), the pendulum block (5) is sleeved with the annular groove (11), the pull rod (60) is sleeved with the guide hole (12), and the limit block (61) matches the guide hole (12).

2. A pedal structure with a braking function according to claim 1, characterized in that: The slide bar mechanism (3) comprises: a slide bar (30) and a connecting rod (31); the slide bar (30) is L-shaped; and the connecting rod (31) is hinged to the end faces of the slide bar (30) and the second pedal (4) respectively.

3. A foot pedal structure with a braking function according to claim 1, characterized in that: The first pedal (2) is provided with a pedal shaft hole (21) with a recessed end surface. The pedal shaft hole (21) is stepped. A guide groove (23) is provided on the side wall of the small diameter hole. The guide groove (23) communicates with the large diameter hole and the end surface of the first pedal (2).

4. A foot pedal structure with a braking function according to claim 3, characterized in that: The pendulum block (5) is located in the large diameter hole of the pedal shaft hole (21), the slide rod (30) is movably connected to the guide slide groove (23), and the end of the slide rod (30) is adapted to the pendulum block (5).

5. The pedal structure with brake function according to claim 1, characterized in that: The second pedal (4) is provided with a clearance hole (40), and the clearance hole (40) is sleeved with the end of the pedal shaft (1).

6. A foot pedal structure with a braking function according to claim 5, characterized in that: An elastic sealing block (41) is sleeved on the end of the pedal shaft (1), the end of the elastic sealing block (41) is clamped with the small diameter hole of the pedal shaft hole (21), and the elastic sealing block (41) matches the clearance hole (40).

7. The pedal structure with brake function according to claim 1, characterized in that: A sealing ring (8) is provided at the connection between the end surfaces of the first pedal (2) and the second pedal (4).

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