CN213677030U

CN213677030U - Pedal type bicycle transmission device

Info

Publication number: CN213677030U
Application number: CN202022687011.5U
Authority: CN
Inventors: 张占元
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-13
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a step-on type bicycle transmission. The utility model comprises a base plate, wherein the right part of the base plate is provided with a first shaft, the first shaft is provided with a first gear and a second gear, the first gear is meshed with a rack, the middle part of the rack is movably connected with a limit strip, the limit strip is connected with the base plate, the bottom end of the rack is connected with a pulley, the pulley is arranged in a chute, the chute is connected with the tail end of a transmission rod, the middle part of the transmission rod is connected with a transmission connecting rod, the transmission connecting rod is movably connected; the left side of the base plate is connected with a first connecting rod, the connecting rod is connected with a first spring seat, a first spring is arranged on the first spring seat, and a first spring is connected with a transmission rod. The utility model has the advantages of can move ahead through adopting the pressure pedal, need not to ride passerby's shank and be circular motion, ride laborsaving.

Description

Pedal type bicycle transmission device

Technical Field

The utility model relates to a bicycle field, especially step on pressure formula bicycle transmission.

Background

Bicycles, also known as bicycles or bicycles, are commonly two-wheeled small land vehicles that are driven by foot pedals when a person rides the bicycle. The structure of a bicycle generally comprises more than 20 parts of the bicycle, such as a frame, tires, pedals, brakes, chains and the like, and the bicycle can be roughly divided into a guide system, a driving system and a braking system according to the working characteristics of each part: 1. a guiding system: comprises a handlebar, a front fork, a front shaft, a front wheel and the like. The rider can change the driving direction and keep the balance of the vehicle body by operating the handlebar; 2. a transmission system: the pedal force of the feet of a person is transmitted by the pedal through the crank, the chain wheel, the chain, the flywheel, the rear shaft and other parts, so that the bicycle continuously moves forwards; 3. a braking system: it is composed of brake parts, and the rider can operate the brake at any time to decelerate and stop the running bicycle and ensure the running safety.

The existing pedal type bicycle has mature technology, but the bicycle needs to move left and right to make circular motion, so that the condition that legs or feet are injured and the like is not flexible enough to ride a rider is limited, and therefore the transmission mechanism of the existing pedal type bicycle is needed to be improved, and the rider can ride the bicycle more conveniently.

Disclosure of Invention

An object of the utility model is to provide a step on formula bicycle transmission. The utility model has the advantages of can move ahead through adopting the pressure pedal, need not to ride passerby's shank and be circular motion, ride laborsaving.

The utility model adopts the following technical scheme to realize the purpose of the invention:

a treading type bicycle transmission device comprises a base plate, wherein the right part of the base plate is provided with a first shaft, the first shaft is provided with a first gear and a second gear, the first gear is meshed with a rack, the middle part of the rack is movably connected with a limiting strip, the limiting strip is connected with the base plate, the bottom end of the rack is connected with a pulley, the pulley is arranged in a chute, the chute is connected with the tail end of a transmission rod, the middle part of the transmission rod is connected with a transmission connecting rod, the transmission connecting rod is movably connected with; the left side of the base plate is connected with a first connecting rod, the connecting rod is connected with a first spring seat, a first spring is arranged on the first spring seat, and a first spring is connected with a transmission rod.

In the pedal type bicycle transmission device, the middle part of the base plate is connected with the second shaft, the third gear is arranged on the second shaft, and the third gear is meshed with the second gear.

In the pedal type bicycle transmission device, the rack is provided with a slide rail, the limiting strip is provided with a slide bar, and the slide bar is arranged in the slide rail.

In the pedal type bicycle transmission device, the top end of the rack is connected with the second spring, and the second spring is connected with the second spring seat.

In the pedal-type bicycle transmission device, the head end of the transmission rod is movably connected with the pedal.

In the pedal bicycle transmission device, a notch is formed at the upper end of the rack.

Compared with the prior art, the utility model discloses following beneficial effect has:

when the utility model is used, the rider only needs to step on the pedals, and the rear wheel of the bicycle can be driven to advance through the transmission rod, the gear, the rack and other structures, and the use mode is simple; the rider can step on the presser foot to pedal with force almost linearly, compared with the prior art that the leg does circular motion to pedal with force, the utility model has simpler force applying mode to the pedal, so the rider can save more labor when using the bicycle with the improved structure; and when the rider tramples and presses to exert force, the ankle part hardly needs to rotate, so the utility model is more convenient for the use requirement of the rider that the leg or the foot are not flexible enough because of the conditions such as injury.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a rear view structure diagram of the present invention;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic view of a second gear and its connection structure;

FIG. 5 is a schematic view of a rack and its connection structure;

FIG. 6 is a schematic cross-sectional view A-A of FIG. 5;

FIG. 7 is a schematic view showing a connection structure of the chute and the transmission rod;

fig. 8 is a schematic view of an application structure of the present invention.

Reference numerals: 1-a substrate; 2-axis one; 3-gear one; 4-gear two; 5-a rack; 6-a limit strip; 7-a pulley; 8-a chute; 9-a transmission rod; 10-a drive link; 11-a rotating shaft; 12-pedaling; 13-a connecting rod; 14-spring seat one; 15-spring I, 16-shaft II, 17-gear, 18-slide rail, 19-slide bar, 20-spring II, 21-spring seat II and 22-notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Examples are given. A pedal type bicycle transmission device is structurally shown in figures 1-8 and comprises a base plate 1, wherein a first shaft 2 is arranged at the right part of the base plate 1, a first gear 3 and a second gear 4 are arranged on the first shaft 2, the first gear 3 is meshed with a rack 5, the middle part of the rack 5 is movably connected with a limiting strip 6, the limiting strip 6 is connected with the base plate 1, the bottom end of the rack 5 is connected with a pulley 7, the pulley 7 is arranged in a chute 8, the chute 8 is connected with the tail end of a transmission rod 9, the middle part of the transmission rod 9 is connected with a transmission connecting rod 10, the transmission connecting rod 10 is movably connected with a rotating; the left side of the base plate 1 is connected with a connecting rod 13, the connecting rod 13 is connected with a first spring seat 14, a first spring 15 is arranged on the first spring seat 14, and the first spring 15 is connected with the transmission rod 9.

The middle part of the base plate 1 is connected with a second shaft 16, a third gear 17 is arranged on the second shaft 16, and the third gear 17 is meshed with the second gear 4. In practice, the second shaft 16 is the axle of the rear wheel of the bicycle. The device drives the gear III 17 and the shaft II 16 to rotate through the gear II 4, so that the shaft II 16 drives the rear wheel of the bicycle to rotate, and the bicycle advances.

The rack 5 is provided with a slide rail 18, the limiting strip 6 is provided with a slide bar 19, and the slide bar 19 is arranged in the slide rail 18. The slide bar 19 has a limiting function on the rack 5 with the slide rail 18, so that the rack 5 can only move linearly under the limiting function of the limiting bar 6.

The top end of the rack 5 is connected with a second spring 20, and the second spring 20 is connected with a second spring seat 21. When the rack 5 moves upwards, the second spring 20 is stretched, and the elastic force of the second spring 20 assists the reset of the rack 5.

The head end of the transmission rod 9 is movably connected with a pedal 12. The pedals 12 facilitate the depression of the transmission lever 9.

The upper end of the rack 5 is provided with a gap 22. The effect of providing the notch 22 on the rack 5 is that when using the structure of the present invention on a bicycle, the bicycle is pushed backwards without restriction, as conveniently as a conventional bicycle.

The utility model discloses a use method and theory of operation:

the utility model discloses install during the use and use on trampling the bicycle to the transmission structure of bicycle, gear, chain is trampled in the replacement. Preferably the utility model discloses set up two sets ofly on the bicycle, set up a set ofly respectively in the left and right sides of bicycle rear wheel to the symmetry sets up, as shown in fig. 8, wherein base plate 1 is preferred more for pleasing to the eye circular. And the rear wheel of the bicycle is designed with a flywheel structure as in the prior art, and the flywheel structure ensures that the bicycle can move forward when the utility model applies force to drive the rear wheel of the bicycle to rotate anticlockwise as shown in figure 8; and the utility model discloses when having the force drive to drive the bicycle rear wheel clockwise rotation as shown in fig. 8, the flywheel idle running to the utility model discloses can not make the bicycle can not retreat.

The utility model discloses a concrete application method is after riding passerby's the car, step on and press arbitrary pedal 12 about, transfer line 9 carries out the lever rotation through drive link 10 and use pivot 11 as the axle center, transfer line 9's front end is at stepping down the motion, transfer line 9's rear end will the upward movement, in-process pulley 7 rolls in spout 8, transfer line 9's tail end upwards promotes pulley 7 and rack 5, rack 5 is upward movement under spacing strip 6, rack 5 drives a gear 3 and rotates, this device structure setting direction in figure 8 is used to the direction of rotation of a gear 3 as an example, rack 5 drives a gear 3 clockwise turning, a gear 3 drives a shaft 2 and rotates, two 4 clockwise turning gears on the shaft 2, two 4 driving gears three 17 and two 16 anticlockwise rotations on the shaft, two 16 are actually the rear wheel axle of bicycle, the bicycle can advance. In the process of treading the transmission rod 9, the transmission rod 9 can press the first spring 15, so that when a rider releases his foot and does not tread the transmission rod 9, the transmission rod 9 is reset under the elastic force of the first spring 15, the transmission mode moves reversely in the resetting process, and due to the structural design of the flywheel, the movement state can not generate backing force on the bicycle. Then, the rider can press the transmission rod 9 for the next time, so that the bicycle can continuously run. In addition, the utility model discloses because respectively set up a set of structure in bicycle rear wheel left and right sides, so, when normal use, the left and right feet of the passerby can step on alternately and press.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A pedal-type bicycle transmission device is characterized in that: the novel gear rack is characterized by comprising a substrate (1), a first shaft (2) is arranged at the right part of the substrate (1), a first gear (3) and a second gear (4) are arranged on the first shaft (2), the first gear (3) is meshed with a rack (5), a limiting strip (6) is movably connected to the middle part of the rack (5), the limiting strip (6) is connected with the substrate (1), a pulley (7) is connected to the bottom end of the rack (5), the pulley (7) is arranged in a sliding groove (8), the sliding groove (8) is connected with the tail end of a transmission rod (9), a transmission connecting rod (10) is connected to the middle part of the transmission rod (9), the transmission connecting rod (10) is movably connected with a rotating shaft (11; the left side of base plate (1) is connected connecting rod (13), and connecting rod (13) are connected spring holder (14), are equipped with spring (15) on spring holder (14), and spring (15) are connected transfer line (9).

2. The step-on bicycle transmission of claim 1, wherein: the middle part of the base plate (1) is connected with a second shaft (16), a third gear (17) is arranged on the second shaft (16), and the third gear (17) is meshed with the second gear (4).

3. The step-on bicycle transmission of claim 1, wherein: the rack (5) is provided with a sliding rail (18), the limiting strip (6) is provided with a sliding strip (19), and the sliding strip (19) is arranged in the sliding rail (18).

4. The step-on bicycle transmission of claim 1, wherein: the top end of the rack (5) is connected with a second spring (20), and the second spring (20) is connected with a second spring seat (21).

5. The step-on bicycle transmission of claim 1, wherein: the head end of the transmission rod (9) is movably connected with a pedal (12).

6. The step-on bicycle transmission of claim 1, wherein: and a notch (22) is formed in the upper end of the rack (5).