CN214138836U

CN214138836U - Chainless driving bicycle

Info

Publication number: CN214138836U
Application number: CN202021984007.9U
Authority: CN
Inventors: 周耿; 陈静芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-09-07
Anticipated expiration: 2030-09-11

Abstract

The utility model relates to the technical field, and a sprocket-free drive bicycle is disclosed, including pole and interior pole, the one end fixedly connected with casing of pole in the metal pole was kept away from, the inside fixed mounting of casing has the pulley, the first axletree of the inner fixedly connected with of metal pole, the one end fixed mounting that the pulley was kept away from to first axletree has the bearing, the pulley joint has the rear gear, the one end fixed mounting that the pulley was kept away from to the rear gear has the support, the middle part fixedly connected with second axletree of support, the one end fixedly connected with rear axle subassembly that the second axletree is close to the rear gear. This no sprocket drive bicycle, through preceding gear and gyro wheel intermeshing and pulley and back gear intermeshing, preceding gear rotation drives back gear rotation and replaces traditional chain drive, avoids not causing the condition that can't use because entering impurity and chain are dry in the chain to reach the effect of facilitating the use, do not need frequent maintenance.

Description

Chainless driving bicycle

Technical Field

The utility model relates to a bicycle drive technical field specifically is a sprocket-free drive bicycle.

Background

The bicycle, also known as a bicycle or a bicycle, is a two-wheeled small land vehicle, is a green and environment-friendly vehicle by taking pedals as power after a person rides the bicycle, has only two wheels without a transmission device, cannot steer, and has more and more perfect functions along with the development of the society.

At present, bicycles on the market adopt chain transmission, exposed chain impurities easily enter, the chain needs to be maintained frequently, lubricating oil is added to ensure that the chain can normally run, the long-term use is inconvenient, and if the chain falls off in the riding process, the trip of a user is influenced, and the work and life plan is delayed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a no sprocket drive bicycle possesses and need not chain drive, and convenient to use is swift advantage, has solved the chain and has easily droed, uses inconvenient problem.

(II) technical scheme

Need not chain drive for realizing the aforesaid, convenient to use swift purpose, the utility model provides a following technical scheme: a chainless wheel-driven bicycle comprises a metal rod, wherein an inner rod is movably connected inside the metal rod, one end of the metal rod, which is far away from the inner rod, is fixedly connected with a shell, a pulley is fixedly arranged inside the shell, a first axle is fixedly connected at the inner end of the metal rod, a bearing is fixedly arranged at one end of the first axle, which is far away from the pulley, a rear gear is clamped on the pulley, a bracket is fixedly arranged at one end of the rear gear, which is far away from the pulley, a second axle is fixedly connected at the middle part of the bracket, one end of the second axle, which is close to the rear gear, is fixedly connected with a rear axle assembly, a roller base is fixedly connected at one end of the inner rod, which is far away from the metal rod, rollers are fixedly arranged at the outer end of the roller base, a front gear is clamped at the outer end of each roller, a crank is fixedly arranged at the middle part of each front gear, and a screw is clamped inside the inner rod, the end of the screw close to the pulley is fixedly connected with a rotor, and the end of the pedal crank close to the front gear is movably connected with a front shaft.

Preferably, the metal rod is hollow, and the inner rod is clamped inside the metal rod.

Preferably, the rear gear is composed of three gears with different sizes and fixedly connected together through a support, and the tooth space of the gear is the same as the outer diameter of the pulley.

Preferably, the rear axle assembly is composed of a nut and a rear axle, and the two rear axle assemblies are distributed at the front end and the rear end of the rear gear.

Preferably, the pulley is fixedly connected with a rear axle assembly far away from the rear gear through a second axle.

Preferably, the inner rod is internally provided with a thread matched with the screw.

Preferably, the tooth space of the front gear is the same as the diameter of the roller.

Preferably, the round holes are formed in the two ends of the front shaft and movably connected with the pedal crank through the round shaft at the axis.

(III) advantageous effects

Compared with the prior art, the utility model provides a no sprocket drive bicycle possesses following beneficial effect:

1. this no sprocket drive bicycle, through preceding gear and gyro wheel intermeshing and pulley and back gear intermeshing, preceding gear rotation drives back gear rotation and replaces traditional chain drive, avoids not causing the condition that can't use because entering impurity and chain are dry in the chain to reach the effect of facilitating the use, do not need frequent maintenance.

2. This no sprocket drive bicycle, through the interact between gear and the gyro wheel, frictional force is little, can not drop like the chain in the use, can not influence cyclist's trip to reach swift convenient effect, can not worry in the use, the car can the emergence problem.

Drawings

FIG. 1 is a side view of the structure of the present invention;

FIG. 2 is a sectional view of the rod connecting structure in the structure of the present invention;

FIG. 3 is a schematic view of the pulley connection structure of the present invention;

fig. 4 is a schematic view of the pulley connection structure of the present invention.

In the figure: the device comprises a metal rod 1, an inner rod 2, a shell 3, a pulley 4, a pulley 5, a first axle, a bearing 6, a rear gear 7, a bracket 8, a second axle 9, a rear shaft assembly 10, a roller base 11, rollers 12, a front gear 13, a pedal crank 14, a screw 15, a rotor 16 and a front shaft 17.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a chainless bicycle comprises a metal rod 1, an inner rod 2 is movably connected inside the metal rod 1, the metal rod 1 is hollow, the inner rod 2 is clamped inside the metal rod 1, a shell 3 is fixedly connected to one end of the metal rod 1 away from the inner rod 2, the shell 3 is made of metal, a pulley 4 is fixedly installed inside the shell 3, the pulley 4 is made of nylon, a first axle 5 is fixedly connected to the inner end of the metal rod 1, a bearing 6 is fixedly installed at one end of the first axle 5 away from the pulley 4, a rear gear 7 is clamped on the pulley 4, the rear gear 7 is composed of three gears with different sizes, the gears are fixedly connected together through a bracket 8, the tooth pitch of the gears is the same as the outer diameter of the pulley 4, a bracket 8 is fixedly installed at one end of the rear gear 7 away from the pulley 4, and a second axle 9 is fixedly connected to the middle part of the bracket 8, a rear shaft assembly 10 is fixedly connected to one end of a second axle 9 close to a rear gear 7, the rear shaft assembly 10 is composed of nuts and a rear shaft, the two rear shaft assemblies 10 are distributed at the front end and the rear end of the rear gear 7, a pulley 4 is fixedly connected with the rear shaft assembly 10 far away from the rear gear 7 through the second axle 9, a roller base 11 is fixedly connected to one end of an inner rod 2 far away from a metal rod 1, a roller 12 is fixedly installed at the outer end of the roller base 11, a front gear 13 is clamped at the outer end of the roller 12, the space between the teeth of the front gear 13 is the same as the diameter of the roller 12, a pedal crank 14 is fixedly installed in the middle of the front gear 13, a screw 15 is clamped inside the inner rod 2, a thread matched with the screw 15 is arranged inside the inner rod 2, a rotor 16 is fixedly connected to one end of the screw 15 close to the pulley 4, a front shaft 17 is movably connected to one end of the pedal crank 14 close to the front gear 13, and round holes are arranged at two ends of the front shaft 17, the round shaft passing through the axle center is movably connected with the pedal crank 14.

The working principle is that the pedal crank 14 is stepped to drive the front gear 13 to rotate, the front gear 13 is meshed with the roller 12 to drive the inner rod 2 to rotate, the pulley 4 starts to rotate, the pulley 4 is meshed with the rear gear 7, the second axle 9 starts to rotate, and the chainless driving bicycle starts to work.

In conclusion, the sprocket-free driving bicycle has the advantages that the front gear 13 is meshed with the roller 12 and the pulley 4 is meshed with the rear gear 7, the front gear 13 rotates to drive the rear gear 7 to rotate to replace the traditional chain transmission, the situation that the bicycle cannot be used due to the fact that impurities enter the chain and the chain is dry is avoided, the effect of convenience in use is achieved, and frequent maintenance is not needed.

This no sprocket drive bicycle, through front gear 13 and gyro wheel 12, the interact frictional force between pulley 4 and the rear gear 7 is little, can not drop like the chain in the use, can not influence cyclist's trip to reached swift convenient effect, can not worry in the use, the car can the emergence problem.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chainless drive bicycle comprising a metal rod (1), characterized in that: the inner rod (2) is movably connected inside the metal rod (1), the metal rod (1) is far away from the shell (3) which is fixedly connected with one end of the inner rod (2), the pulley (4) is fixedly installed inside the shell (3), the inner end of the metal rod (1) is fixedly connected with a first axle (5), one end of the first axle (5) far away from the pulley (4) is fixedly installed with a bearing (6), the pulley (4) is connected with a rear gear (7) in a clamping manner, one end of the rear gear (7) far away from the pulley (4) is fixedly installed with a support (8), the middle of the support (8) is fixedly connected with a second axle (9), one end of the second axle (9) close to the rear gear (7) is fixedly connected with a rear axle assembly (10), one end of the inner rod (2) far away from the metal rod (1) is fixedly connected with a roller base (11), the outer end fixed mounting of gyro wheel base (11) has gyro wheel (12), the outer end joint of gyro wheel (12) has preceding gear (13), the middle part fixed mounting of preceding gear (13) has pedal crank (14), the inside joint of interior pole (2) has screw (15), one end fixedly connected with rotor (16) that screw (15) are close to pulley (4), pedal crank (14) are close to one end swing joint of preceding gear (13) has front axle (17).

2. The chainless drive bicycle of claim 1, wherein: the metal rod (1) is hollow, and the inner rod (2) is clamped inside the metal rod (1).

3. The chainless drive bicycle of claim 1, wherein: the rear gear (7) is composed of three gears with different sizes and is fixedly connected together through a support (8), and the tooth space of the gear is the same as the outer diameter of the pulley (4).

4. The chainless drive bicycle of claim 1, wherein: the rear shaft assembly (10) consists of a nut and a rear shaft, and the two rear shaft assemblies (10) are distributed at the front end and the rear end of the rear gear (7).

5. The chainless drive bicycle of claim 1, wherein: the pulley (4) is fixedly connected with a rear shaft assembly (10) far away from the rear gear (7) through a second axle (9).

6. The chainless drive bicycle of claim 1, wherein: the inner rod (2) is internally provided with threads matched with the screws (15).

7. The chainless drive bicycle of claim 1, wherein: the tooth space of the front gear (13) is the same as the diameter of the roller (12).

8. The chainless drive bicycle of claim 1, wherein: round holes are formed in the two ends of the front shaft (17), and the round shaft passing through the axis is movably connected with the pedal crank (14).