CN217409662U

CN217409662U - Improved structure of exercise bicycle frame

Info

Publication number: CN217409662U
Application number: CN202220605439.7U
Authority: CN
Inventors: 黄海平
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-09-13
Anticipated expiration: 2032-03-18

Abstract

The utility model relates to an improved structure of a body-building frame, which comprises a bracket, a driving wheel, a driven wheel, a flywheel, a first rotating shaft, a second rotating shaft and a magnetic resistance regulator; the bracket comprises two fork pieces which are arranged at intervals; the driving wheel is sleeved on the first rotating shaft and fixed, and the first rotating shaft is respectively and rotatably connected with the two fork pieces; the second rotating shaft is respectively connected with the two fork pieces, the driven wheel and the flywheel are rotationally connected to the second rotating shaft, and the driven wheel is connected with the flywheel; one end of the magnetic resistance regulator is hinged on the fork piece, the other end of the magnetic resistance regulator is connected with a regulating rope, and the magnetic resistance regulator is arranged by being attached to the flywheel; the driving wheel is in transmission connection with the driven wheel. The utility model discloses simple structure, easily assembly and maintenance, moreover the utility model discloses the structure is light, does benefit to and moves, is based on the utility model discloses the spinning of matched stack is very fit for the family and is used, carries to outdoor use even.

Description

Improved structure of exercise bicycle frame

Technical Field

The utility model relates to a body-building apparatus technical field especially relates to an improved structure of exercise bicycle frame.

Background

The spinning is the body-building apparatus that is liked by masses at present, and it can change the motion load through adjusting the resistance to the body-building crowd of different demands of adaptation. At present, the spinning on the market adopts two belt drive mostly, produces great noise more easily in the user's use, and frame construction is more complicated relatively moreover, is unfavorable for maintaining, and frame construction is more heavy relatively moreover, moves inconveniently.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model aims to provide an improved structure of exercise bicycle frame, its simple structure is light, does benefit to and maintains and moves.

In order to achieve the purpose, the utility model adopts the technical proposal that:

an improved structure of a body-building bicycle frame comprises a support, a driving wheel, a driven wheel, a flywheel, a first rotating shaft, a second rotating shaft and a magnetic resistance regulator.

The support comprises two fork pieces arranged at intervals, and the driving wheel, the driven wheel, the flywheel and the magnetic resistance regulator are arranged between the two fork pieces.

The driving wheel is sleeved on the first rotating shaft and fixed, the first rotating shaft is respectively and rotatably connected with the two fork pieces, and two ends of the first rotating shaft extend out of the fork pieces.

The second rotating shaft is respectively connected with the two fork pieces, the driven wheel and the flywheel are rotatably connected to the second rotating shaft, and the driven wheel is connected with the flywheel.

One end of the magnetic resistance regulator is hinged to the fork piece, the other end of the magnetic resistance regulator is connected with a regulating rope, and the magnetic resistance regulator is arranged by being attached to the flywheel.

The driving wheel is in transmission connection with the driven wheel.

Preferably, the fork piece is provided with a mounting groove matched with the second rotating shaft, and the mounting groove is provided with at least one bending part.

Preferably, the mounting groove is provided with a bending part, the front end of the bending part is a first straight section, the rear end of the bending part is a second straight section, the first straight section is obliquely arranged relative to the length direction of the fork piece, and the included angle between the first straight section and the length direction of the fork piece is larger than the included angle between the second straight section and the length direction of the fork piece.

Preferably, the driving wheel and the flywheel are arranged in a staggered manner, and orthographic projections of the driving wheel and the flywheel are partially overlapped; the driving wheel is opposite to the driven wheel.

Preferably, the transmission ratio of the driving wheel to the driven wheel is 8-12: 1.

Preferably, the magnetic resistance regulator is arranged on one side of the flywheel close to the first rotating shaft, and an arc surface matched with a wheel surface of the flywheel is arranged on the magnetic resistance regulator.

Preferably, the seat cushion device further comprises a seat cushion sleeve, a fixing plate is arranged at one end of the support, and the seat cushion sleeve is connected with the fixing plate through bolts; the first rotating shaft is arranged close to the fixing plate.

Preferably, the device further comprises a multi-wedge belt, and the driving wheel and the driven wheel are connected through the multi-wedge belt.

Preferably, the device also comprises a pinch roller and a third rotating shaft, wherein the third rotating shaft is fixed on the fork piece, and the fork piece is provided with a long round hole matched with the third rotating shaft; the pinch roller is rotatably connected to the third rotating shaft, and the wheel surface of the pinch roller tightly supports the multi-wedge belt.

After adopting above-mentioned scheme, can make the structure more light as the mount pad of first pivot and second pivot through the fork piece, the fork piece can also play the effect of safety cover simultaneously. Through the cooperation of flywheel and magnetic resistance regulator, can adjust transmission load conveniently to the body-building crowd of different demands of adaptation. The utility model discloses simple structure, easily assembly and maintenance, moreover the utility model discloses the structure is light, does benefit to and moves, is based on the utility model discloses the spinning of matched stack is very fit for the family and uses, carries to outdoor use even.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic layout diagram of the present invention;

FIG. 3 is a schematic view of another arrangement of the present invention;

fig. 4 is an exploded view of the present invention.

Description of reference numerals:

the cushion comprises fork blades 11, a notch 111, a bearing seat 112, a first straight section 1131, a second straight section 1132, a long circular hole 114, a fixing plate 12 and a cushion sleeve 13;

a first rotating shaft 20;

a drive wheel 30;

a second rotating shaft 40;

a driven wheel 50;

a flywheel 60;

a multi-ribbed belt 70;

a pinch roller 81, a third shaft 82;

a magnetoresistive actuator 90.

Detailed Description

As shown in fig. 1-4, the present invention discloses an improved structure of exercise bike frame, which comprises a pair of support frames, a driving wheel 30, a driven wheel 50, a flywheel 60, a pinch roller 81, a multi-wedge belt 70, a first shaft 20, a second shaft 40, a third shaft 82, a set of magnetic resistance regulator 90 and a cushion sleeve 13.

The bracket comprises two fork pieces 11 which are arranged at intervals. One end of the fork piece 11 is welded together through the fixing plate 12, and the other end is welded together through a supporting plate with an arc-shaped cross section, and the supporting plate is used for being connected with a base of the spinning. Cushion sleeve pipe 13 and fixed plate 12 bolted connection are equipped with a plurality of bolt holes on fixed plate 12, and cushion sleeve pipe 13 is used for laying the spinning cushion, and cushion sleeve pipe 13 and fixed plate 12 bolted connection can be convenient for replace, improve simultaneously the utility model discloses a commonality.

Each fork blade 11 is provided with a notch 111, a bearing seat 112 made of plastic is embedded in the notch 111, and the bearing seat 112 is locked on the fork blade 11 through a bolt. Two ends of the first rotating shaft 20 are rotatably connected to the bearing seats 112, and two ends of the first rotating shaft 20 extend out of the fork blades 11 for a distance, so as to facilitate the installation of the pedals. The driving wheel 30 is disposed between the two fork pieces 11, and meanwhile, the driving wheel 30 is further sleeved on the first rotating shaft 20 and fixed with the first rotating shaft 20, and the driving wheel 30 and the first rotating shaft 20 rotate synchronously. It should be noted that the first rotating shaft 20 is disposed close to the fixed plate 12, which can give the pedals a larger moving space, which is beneficial to improve the comfort of the user, and is less likely to cause interference.

Each fork piece 11 is further provided with a mounting groove with a one-way opening, the mounting groove is used for mounting the second rotating shaft 40, two ends of the second rotating shaft 40 are respectively provided with an external thread, the second rotating shaft 40 can be fixed in the mounting groove through the matching of a nut and the external thread, and the second rotating shaft 40 can be conveniently assembled and disassembled. The driven wheel 50 and the flywheel 60 are arranged between the two fork blades 11, the driven wheel 50 and the flywheel 60 are rotatably connected to the second rotating shaft 40, the driven wheel 50 and the flywheel 60 are fixedly connected or connected in a pressing mode, or the driven wheel 50 and the flywheel 60 are integrally formed, and the driven wheel 50 and the flywheel 60 can rotate synchronously.

Because the flywheel 60 has a larger weight, generally between 2 kg and 5kg, in order to prevent the second rotating shaft 40 from coming off the installation slot during transportation, a bent portion is designed on the installation slot, the front end of the bent portion is a first straight section 1131, the rear end of the bent portion is a second straight section 1132, and the first straight section 1131 is inclined relative to the length direction of the fork 11. The angle a1 between the first through section 1131 and the length direction of the fork 11 is larger than the angle a2 between the second through section 1132 and the length direction of the fork 11. The second shaft 40 can be effectively prevented from derailing due to the arrangement of the bending part.

The driving wheel 30 and the driven wheel 50 are connected through a single multi-ribbed belt 70, and the multi-ribbed belt 70 can effectively avoid the occurrence of a slipping phenomenon. Compared with the existing double-belt connection, the structure is more simplified, and the overall miniaturization and compact arrangement are facilitated. Since the belt tends to loosen over time, pinch rollers 81 are provided to press the multi-ribbed belt 70 so that it can be held taut. Specifically, an elongated hole 114 is formed in the fork piece 11 close to the driving wheel 30 and the driven wheel 50, an external thread is formed at one end of the third rotating shaft 82, the third rotating shaft 82 can be locked and fixed on the elongated hole 114 through nut matching, and meanwhile, a certain adjustable space can be provided. The pinch roller 81 is rotatably connected to the other end of the third rotating shaft 82, and the driving roller 30, the driven roller 50 and the pinch roller 81 are on the same plane. By adjusting the position of the third shaft 82 on the oblong hole 114, the tightness of the compression multi-v-belt 70 can be adjusted.

The magnetic resistance adjuster 90 for adjusting the transmission load between the driving pulley 30 and the driven pulley 50 is provided on the side of the flywheel 60 close to the first rotating shaft 20. One end of the magnetic resistance regulator 90 is hinged to the fork 11 close to the flywheel 60, the other end is connected with a regulating rope, in addition, the magnetic resistance regulator 90 is also provided with an arc surface matched with the wheel surface of the flywheel 60, and in a normal state, the magnetic resistance regulator 90 is arranged close to the flywheel 60, or the magnetic resistance regulator 90 is adsorbed on the flywheel 60. The flywheel 60 is made of or has a tread made of a magnetic material, which may be iron. The contact surface between the magnetic resistance adjuster 90 and the flywheel 60 can be adjusted by pulling the adjusting rope, thereby achieving the function of adjusting the resistance.

In order to make the structure more compact, the transmission ratio of the driving wheel 30 to the driven wheel 50 is set to 8-12:1, and after the arrangement, the driven wheel 50 is smaller than the driving wheel 30 and the flywheel 60, and the driven wheel 50 and the flywheel 60 are coaxially arranged, so that a larger space can be left for arranging the driving wheel 30 and other components. Furthermore, the driving wheel 30 and the flywheel 60 are disposed in a staggered manner, and the orthographic projections of the driving wheel 30 and the flywheel 60 are partially overlapped. The driving wheel 30 is opposite to the driven wheel 50, so that the multi-wedge belt 70 can be prevented from deviating.

The key point of the utility model is that the mounting seat as first pivot 20 and second pivot 40 through fork piece 11 can make the structure more light, and fork piece 11 can also play the effect of safety cover simultaneously. Through the cooperation of flywheel 60 and magnetic resistance regulator 90, can conveniently adjust the transmission load to the body-building crowd of different demands of adaptation. The utility model discloses simple structure, easily assembly and maintenance, moreover the utility model discloses the structure is light, does benefit to and moves, is based on the utility model discloses the spinning of matched stack is very fit for the family and uses, carries to outdoor use even.

The above description is only an embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. An improved structure of exercise bicycle frame, its characterized in that: the magnetic resistance regulator comprises a bracket, a driving wheel, a driven wheel, a flywheel, a first rotating shaft, a second rotating shaft and a magnetic resistance regulator;

the bracket comprises two fork pieces which are arranged at intervals, and the driving wheel, the driven wheel, the flywheel and the magnetic resistance regulator are arranged between the two fork pieces;

the driving wheel is sleeved on and fixed to a first rotating shaft, the first rotating shaft is respectively rotatably connected with the two fork pieces, and two ends of the first rotating shaft extend out of the fork pieces;

the second rotating shaft is respectively connected with the two fork pieces, the driven wheel and the flywheel are rotationally connected to the second rotating shaft, and the driven wheel is connected with the flywheel;

one end of the magnetic resistance regulator is hinged on the fork piece, the other end of the magnetic resistance regulator is connected with a regulating rope, and the magnetic resistance regulator is arranged by clinging to the flywheel;

the driving wheel is in transmission connection with the driven wheel.

2. The improved structure of exercise bicycle frame as claimed in claim 1, wherein: the fork piece is provided with a mounting groove matched with the second rotating shaft, and the mounting groove is provided with at least one bending part.

3. The improved structure of exercise bicycle frame as claimed in claim 2, wherein: the mounting groove is provided with a bending part, the front end of the bending part is a first straight-through section, the rear end of the bending part is a second straight-through section, the first straight-through section is obliquely arranged relative to the length direction of the fork piece, and the included angle between the first straight-through section and the length direction of the fork piece is larger than the included angle between the second straight-through section and the length direction of the fork piece.

4. The improved structure of exercise bicycle frame as claimed in claim 1, wherein: the driving wheel and the flywheel are arranged in a staggered mode, and orthographic projections of the driving wheel and the flywheel are partially overlapped; the driving wheel is opposite to the driven wheel.

5. The improved structure of exercise bicycle frame as claimed in claim 1, wherein: the transmission ratio of the driving wheel to the driven wheel is 8-12: 1.

6. The improved structure of exercise bicycle frame as claimed in claim 1, wherein: the magnetic resistance regulator is arranged on one side of the flywheel close to the first rotating shaft, and an arc surface matched with the wheel surface of the flywheel is arranged on the magnetic resistance regulator.

7. The improved structure of exercise bicycle frame as claimed in claim 1, wherein: the seat cushion is characterized by further comprising a seat cushion sleeve, wherein a fixing plate is arranged at one end of the support, and the seat cushion sleeve is connected with the fixing plate through bolts; the first rotating shaft is arranged close to the fixing plate.

8. The improved structure of exercise bicycle frame as claimed in claim 1, wherein: the multi-wedge belt is characterized by further comprising a multi-wedge belt, and the driving wheel and the driven wheel are connected through the multi-wedge belt.

9. The improved structure of exercise bicycle frame according to claim 8, wherein: the belt pressing device further comprises a belt pressing wheel and a third rotating shaft, the third rotating shaft is fixed on the fork piece, and the fork piece is provided with a long round hole matched with the third rotating shaft; the pinch roller is rotatably connected to the third rotating shaft, and the wheel surface of the pinch roller tightly supports the multi-wedge belt.