CN210284511U

CN210284511U - Bicycle transmission device

Info

Publication number: CN210284511U
Application number: CN201921321276.4U
Authority: CN
Inventors: 刘金鹤
Original assignee: Tianjin Shengxi Bicycle Technology Co Ltd
Current assignee: Tianjin Shengxi Bicycle Technology Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-10
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a bicycle transmission relates to bicycle transmission technical field, is riding the in-process to current bicycle, and foot bar length is fixed for the excessive bending of shank when riding, the posture of riding is not good, and the long-time problem that probably leads to the personnel's of riding shank muscle ache of riding, now proposes following scheme, and it includes outer rim plate, the both sides of outer rim plate are provided with interior rim plate respectively, interior rim plate center is provided with the fixed column, and the fixed column passes interior rim plate, be provided with pivot three in the fixed column, and the pivot tee bend crosses the bearing and rotates to be connected in the fixed column to with fixed column parallel arrangement, three both sides of pivot are provided with the regulation post respectively. The utility model discloses novel structure, and change foot bar length through adjusting the post for the personnel of riding can adjust foot bar length through self demand.

Description

Bicycle transmission device

Technical Field

The utility model relates to a bicycle transmission technical field especially relates to a bicycle transmission.

Background

Bicycles, also known as bicycles or bicycles, are typically two-wheeled small land vehicles. After a person rides the vehicle, the person steps on the pedal as power, and the vehicle is a green and environment-friendly vehicle. The bicycle is of various types, including single-person bicycles, double-person bicycles and multi-person bicycles. Can be used as an environment-friendly vehicle for riding instead of walking and going out; more and more people use bicycles as fitness equipment for riding exercise and bicycle travel; the bicycle itself is also a sport event, including road bike racing, mountain bike racing, field bike racing, stunt bike racing, and the like. The bicycle is at the in-process of riding, the personnel's of riding the problem of custom and self shank length for the shank excessively bends when riding, and the posture of riding is not good, rides for a long time and probably leads to the personnel's of riding leg muscle ache. Therefore, there is a need to provide a bicycle transmission device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bicycle transmission has solved the bicycle and is riding the in-process, and the personnel of riding makes the shank excessively crooked when riding because of riding custom and self shank length, and the posture of riding is not good, rides for a long time and probably leads to the problem of personnel's of riding's shank muscle soreness.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a bicycle transmission device comprises an outer wheel disc, inner wheel discs are arranged on two sides of the outer wheel disc respectively, a fixed column is arranged in the center of each inner wheel disc and penetrates through the inner wheel disc, a third rotating shaft is arranged in each fixed column and is rotatably connected in the fixed column through a bearing and arranged in parallel with the fixed column, adjusting columns are arranged on two sides of the third rotating shaft respectively, one ends, away from each other, of the adjusting columns are fixedly connected with a first shell and a second shell respectively, gears are fixedly sleeved on the two adjusting columns respectively, adjusting grooves are sleeved on the gears and are arranged in the first shell and the second shell respectively, an adjusting rod is arranged below the gears and is movably arranged in the first shell and the second shell respectively, one ends, away from each other, of the two adjusting columns are connected with a fixed ring respectively, and a positioning groove is arranged in the fixed ring, and the two ends of the positioning groove far away from the adjusting column are respectively provided with a movable block, one end of the movable block far away from the positioning groove is movably connected with a spring, the shell is connected with a second rotating shaft, the second rotating shaft penetrates through the inner wheel disc fixedly connected with the shell, one end of the adjusting rod far away from the gear movably penetrates through the first shell and the second shell respectively, and is fixedly connected with a fixed rod, and the fixed rod is rotatably connected with a pedal plate through the first rotating shaft.

Preferably, the positioning groove is of a hexagonal structure, and the side close to each other is provided with an opening.

Preferably, one side of each of the two groups of adjusting rods, which is close to the gear, is provided with an adjusting groove, positioning teeth are arranged in the adjusting grooves, and the teeth on the positioning teeth are meshed with each other.

Preferably, the fixing ring is arranged at the opening of the positioning groove.

Preferably, one end of the adjusting column, which is far away from the opening of the positioning groove, is provided with a groove.

The utility model has the advantages that:

1. the utility model discloses a gear that sets up on the regulation post can outwards promote the gear rack for adjust the pole extension, so that adjust the length of whole bicycle pedal rod, let the personnel of riding adjust own suitable length better at the in-process of riding.

2. The utility model discloses a setting of two sets of gears can change regulating lever length, and through solid fixed ring's installation for device stability increases, makes the personnel of riding convenient and fast when adjusting, and safety and stability again when riding.

Drawings

FIG. 1 is a three-sectional view of a rotating shaft of a bicycle transmission in accordance with the present invention;

FIG. 2 is a side view of a bicycle transmission provided in accordance with the present invention;

FIG. 3 is a top plan view of a bicycle transmission provided in the present invention;

FIG. 4 is a cross-sectional view of a bicycle transmission in accordance with the present invention;

fig. 5 is a side view of a bicycle transmission in accordance with the present invention.

Reference numbers in the figures: 1 shell I, 2 outer wheel discs, 3 foot pedals, 4 rotating shafts I, 5 adjusting rods, 6 adjusting columns, 7 fixing rings, 8 rotating shafts II, 9 moving blocks, 10 springs, 11 adjusting grooves, 12 gears, 13 fixing columns, 14 fixing rods, 15 inner wheel discs, 16 rotating shafts III, 17 shell II, 18 positioning grooves, 19 grooves and 20 positioning teeth.

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.

Referring to fig. 1-5, a bicycle transmission device comprises an outer wheel disc 2, inner wheel discs 15 are respectively arranged on two sides of the outer wheel disc 2, a fixed column 13 is arranged in the center of the inner wheel disc 15, the fixed column 13 penetrates through the inner wheel disc 15, a third rotating shaft 16 is arranged in the fixed column 13, the third rotating shaft 16 is rotatably connected in the fixed column 13 through a bearing and is arranged in parallel with the fixed column 13, adjusting columns 6 are respectively arranged on two sides of the third rotating shaft 16, a groove 19 is arranged at one end of each adjusting column 6, which is far away from an opening of a positioning groove 18, a second shell 17 and a first shell 1 are respectively and fixedly connected with one end of each adjusting column 6, which is far away from each other, gears 12 are respectively and fixedly sleeved on the two adjusting columns 6, an adjusting groove 11 is sleeved on each gear 12, the adjusting grooves 11 are respectively arranged in the first shell 1 and the second shell 17, an, and the adjusting groove 11 is internally provided with positioning teeth 20, the teeth on the positioning teeth 20 are mutually meshed, the adjusting rods 5 are respectively and movably arranged in the first shell 1 and the second shell 17, the ends, far away from each other, of the two adjusting columns 6 are respectively connected with a fixing ring 7, the fixing ring 7 is arranged at the opening of the positioning groove 18, the positioning groove 18 is arranged in the fixing ring 7, the positioning groove 18 is of a hexagonal structure, and the side close to each other is provided with an opening, the two ends of the positioning groove 18 far away from the adjusting column 6 are respectively provided with a movable block 9, one end of the movable block 9 far away from the positioning groove 18 is movably connected with a spring 10, the shell 1 is connected with a second rotating shaft 8, the second rotating shaft 8 penetrates through the shell 1 and is fixedly connected to the inner wheel disc 15, one end of the adjusting rod 5 far away from the gear 12 respectively and movably penetrates through the first shell 1 and the second shell 17, and a fixed rod 14 is fixedly connected with the fixed rod 14, and the pedal plate 3 is rotatably connected with the fixed rod 14 through a first rotating shaft 4.

The working principle is as follows: when the device is used, the gear 12 can be driven to rotate by rotating the adjusting column 6, and the teeth on the gear 12 are meshed with the positioning teeth 20 on the adjusting groove 11, so that the adjusting groove 11 can move back and forth, the adjusting rod 5 is extended and contracted, the length of the whole pedal rod is changed, when the proper length is adjusted, by pressing the fixing ring 7, the movable block 9 connected with the spring 10 moves towards two sides, and the fixing ring 7 is fixed in the positioning groove 18, because the positioning groove 18 and the fixing ring 7 are both in a hexagonal structure, the whole adjusting column 6 and the gear 12 can not rotate, the length of the whole pedal rod can be fixed, after the length of the pedal rod is fixed, by the rotation of the footrests 3 around the fixed posts 13, the inner wheel disc 15 and the outer wheel disc 2 are rotated, thereby in the process of riding, can adjust the length of whole pedal pole according to the needs of self, also compromise its stability simultaneously.

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 bicycle transmission device comprises an outer wheel disc (2) and is characterized in that inner wheel discs (15) are respectively arranged on two sides of the outer wheel disc (2), a fixed column (13) is arranged at the center of each inner wheel disc (15), the fixed column (13) penetrates through each inner wheel disc (15), a third rotating shaft (16) is arranged in each fixed column (13), the third rotating shaft (16) is rotatably connected into each fixed column (13) through a bearing and is parallel to the fixed columns (13), adjusting columns (6) are respectively arranged on two sides of each third rotating shaft (16), one ends, far away from each other, of the adjusting columns (6) are respectively and fixedly connected with a second shell (17) and a first shell (1), gears (12) are respectively and fixedly sleeved on the two adjusting columns (6), adjusting grooves (11) are respectively arranged in the first shell (1) and the second shell (17), an adjusting rod (5) is arranged below the gear (12), the adjusting rods (5) are movably arranged in the first shell (1) and the second shell (17) respectively, one ends, far away from each other, of the two adjusting columns (6) are connected with fixing rings (7) respectively, positioning grooves (18) are arranged in the fixing rings (7), and the two ends of the positioning groove (18) far away from the adjusting column (6) are respectively provided with a movable block (9), one end of the movable block (9) far away from the positioning groove (18) is movably connected with a spring (10), the first shell (1) is connected with a second rotating shaft (8), and the second rotating shaft (8) penetrates through the first shell (1) and is fixedly connected on the inner wheel disc (15), one end of the adjusting rod (5) far away from the gear (12) respectively and movably penetrates through the first shell (1) and the second shell (17), and is fixedly connected with a fixed rod (14), and the fixed rod (14) is rotatably connected with a pedal (3) through a first rotating shaft (4).

2. A bicycle transmission according to claim 1, characterised in that the positioning slot (18) is of hexagonal configuration and is open on mutually adjacent sides.

3. The bicycle transmission device according to claim 1, wherein the two sets of adjusting rods (5) are provided with adjusting grooves (11) on one side close to the gear (12), and positioning teeth (20) are arranged in the adjusting grooves (11), and the teeth on the positioning teeth (20) are engaged with each other.

4. A bicycle transmission according to claim 1, characterized in that the fixing ring (7) is arranged at the opening of the positioning slot (18).

5. A bicycle transmission according to claim 1, characterised in that the end of the adjusting column (6) remote from the opening of the positioning slot (18) is provided with a recess (19).