CN217961155U - Novel exercise bicycle internal integrated structure - Google Patents

Abstract

The utility model provides a novel inside integrated configuration of exercise bicycle, its inner structure includes two extension boards, drive assembly and resistance wheel, and drive assembly and resistance wheel unit mount are between two extension boards, and each subassembly is connected for rotating with being connected of two extension boards, drive assembly and resistance wheel subassembly interconnect, and drive assembly's rotary motion can drive the resistance wheel and rotate, and drive assembly adjusts to be different transmission forms and resistance size setting between the different positions of locating hole and resistance assembly regulation locating hole. The utility model discloses a structure adopts the modularization integrated mode, does not receive motorcycle type appearance design's restriction, and transmission assembly can adopt multiple transmission form, the big velocity ratio of multistage transmission, and great resistance can be realized to less resistance wheel, and transmission assembly form and resistance wheel specification can conveniently be changed, and modular structure and frame need not the welding, and it is convenient to install, the working strength and the technical requirement of reducible assembly line equipment production.

Description

Novel exercise bicycle internal integrated structure

Technical Field

The utility model relates to a body-building apparatus technique, concretely relates to novel exercise bicycle internal integration structure.

Background

Exercise bicycles are common exercise equipment and are widely applied to various places such as families, schools, gymnasiums and the like. The existing exercise bicycle drives the chain wheel by a pedal crank mostly, and drives the resistance wheel to rotate in a primary transmission mode through a chain, and by adopting the transmission mode, the diameter and the weight of the resistance wheel can only be increased by increasing the torque, so that the exercise bicycle occupies large volume and is inconvenient to place.

Therefore, the problem is solved, chinese utility model patent CN207187004U proposes a magnetic control exercise bicycle internal structure, solves the problem that the prior art exercise bicycle product structure is not compact enough, the transmission is unstable through adopting the secondary drive. However, after the scheme is adopted, the exercise bicycle is complex in structure and inconvenient to assemble, the exercise bicycle usually needs large strength to trample and rotate, the flywheel is fixedly arranged, the size of the flywheel cannot be adjusted to adjust the resistance of the flywheel, and particularly, the exercise bicycle is inconvenient to use for primary exercisers.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model discloses a novel exercise bicycle inside integrated configuration, the transmission structure of exercise bicycle's inside adopts the modular mode, makes things convenient for the equipment of exercise bicycle to use, has set up the extension board of the resistance wheel installation of adjustable different diameter specifications to the resistance size of adjusting the resistance wheel to be fit for different users' operation requirement, improved the application range of exercise bicycle.

In order to solve the above problem, the utility model discloses a technical scheme as follows: the utility model provides a novel inside integrated configuration of exercise bicycle, includes two extension boards, drive assembly and resistance wheel, corresponding position on two extension boards is equipped with regulation hole, drive assembly locating hole, drive assembly installs on the drive assembly locating hole, just drive assembly sets up between two extension boards, drive assembly with the drive assembly locating hole is connected for rotating, the resistance wheel is installed on the regulation hole, just the resistance wheel sets up between two extension boards, the resistance wheel with the regulation hole is connected for rotating, drive assembly with resistance wheel interconnect, just drive assembly's rotary motion can drive the resistance wheel rotates, distance between every position and the drive assembly locating hole on the regulation hole is different settings, and the axis of rotation swing joint of the resistance wheel of different diameters is on the regulation hole to the reaction of adjusting the resistance wheel is in drive assembly resistance size.

Further, the transmission assembly and the resistance wheel are connected with each other through a gear or a belt or a chain.

Furthermore, the adjusting hole is an arc-shaped through hole, and the bending direction of the arc-shaped through hole is far away from the transmission assembly positioning hole. Resistance wheels of different diameters can be rotationally fixed in the arc-shaped adjusting hole according to the diameter of the resistance wheel, so that the resistance of the resistance wheel can be adjusted.

Furthermore, the adjusting holes are a plurality of circular through holes, and the adjusting holes are arranged in the direction away from the positioning holes of the transmission assembly from top to bottom. Resistance wheels of different diameters can be rotationally fixed in different adjusting holes according to the diameters of the resistance wheels, so that the resistance of the resistance wheels can be adjusted.

Furthermore, the support plate is also provided with transmission assembly adjusting holes which are a plurality of circular through holes, and the transmission assembly adjusting holes are arranged in the direction away from the transmission assembly positioning holes from top to bottom. Through setting up transmission assembly regulation hole, transmission assembly can be according to its different transmission connected mode, and the second grade or multistage drive unit between transmission assembly can connect on different transmission assembly regulation holes adaptively, has further promoted the inside transmission of transmission assembly and has adjusted.

Further, still install damping subassembly between two extension boards, damping subassembly includes fastener, a plurality of damping piece, connecting piece, fixing base and fastener pivot, the fastener is the arc setting, is located the inboard of fastener and installs a plurality of damping piece, just damping piece surround in resistance wheel periphery side, the one end of fastener is equipped with the fastener pivot just the fastener pivot is connected with rotating between two extension boards, the other end of fastener passes through the fixing base on connecting piece and the extension board is connected.

Furthermore, the lower part of the support plate is provided with a clamping piece adjusting hole, the clamping piece adjusting hole is used for adjusting the position of a clamping piece on the support plate, when the resistance wheels with different diameters are installed in the adjusting hole, and the clamping piece rotating shaft of the damping assembly can be fixed on different positions of the corresponding clamping piece adjusting hole so as to adapt to the situation that a plurality of damping blocks in the clamping piece and the clamping piece thereof are arcuately surrounded on the outer peripheral edge side of the resistance wheel in a matched manner.

Further, the support plate is a trapezoidal plate, a semicircular plate or a square plate. The middle part of the support plate is provided with a reinforcing rib for reinforcing support, the adjusting hole on the support plate is positioned at the upper part of the reinforcing rib, and the clamping piece adjusting hole is positioned at the lower part of the reinforcing rib.

Further, the connecting piece is a threaded rod or a spring connecting piece. Lead to threaded rod or spring, the upper portion of fastener also can be according to the outer fringe of resistance wheel makes a plurality of damping piece in fastener and the fastener be arc ground phase-match around in resistance wheel periphery side.

Further, the damping block can be a rubber block or a magnet block.

Furthermore, a first tensioning assembly is arranged between the transmission assembly and the resistance wheel and comprises a first tensioning wheel plate and a first tensioning wheel, a first adjusting groove is formed in the first tensioning wheel plate, the first tensioning wheel is rotatably connected to the first tensioning wheel plate, and the first tensioning wheel is adjustably connected to the support plate through the first adjusting groove.

Further, the transmission assembly further comprises a first belt and a second belt, the transmission assembly comprises a driving wheel and a driven wheel, the driven wheel is provided with a coaxial driven wheel belt ring, the resistant wheel is provided with a coaxial resistant wheel belt ring, the driven wheel and the resistant wheel are provided with the first belt surrounding the first tensioning assembly, the driven wheel and the driving wheel are provided with the second tensioning assembly, the second tensioning assembly comprises a second tensioning wheel plate and a tensioning fixing plate, the second tensioning wheel plate is provided with a second adjusting groove, the second tensioning wheel plate is rotatably connected with a second tensioning wheel, and the driven wheel and the driving wheel are provided with the second belt surrounding the second tensioning assembly. The first adjusting groove of the first tensioning wheel plate is connected with the support plate in an adjustable manner, so that the position of the first tensioning wheel on the first tensioning plate is realized, the first belt between the driven wheel and the resistance wheel is pressed by the first tensioning wheel, the second belt between the driven wheel and the resistance wheel is connected more tightly, and the first belt is prevented from being separated in the using process of the exercise bicycle; the second tensioning wheel is connected with the second adjusting groove of the second tensioning wheel plate in an adjustable mode, so that the position of the second tensioning wheel on the second tensioning plate is achieved, the second tensioning wheel abuts against the second belt between the driven wheel and the driving wheel, the second belt between the driven wheel and the driving wheel is connected more tightly, and the second belt is prevented from being separated from the exercise bicycle in the using process.

Furthermore, the transmission assembly comprises a power wheel, a first gear, a second gear, a first follow-up gear and a second follow-up gear, wherein the first gear, the power wheel and the first follow-up gear are coaxial, the second gear and the second follow-up gear are coaxial, the second follow-up gear and the first gear are meshed with each other, the first follow-up gear and the second gear are meshed with each other, and the second follow-up gear, the first follow-up gear and the second gear form a gear transmission group with a certain resistance effect.

The utility model discloses, the internal integrated structure of exercise bicycle can adopt the belt to connect transmission mode, also can adopt the sprocket to connect transmission mode, all can adopt the modular mode, and its drive assembly or damping subassembly all can be installed between two extension boards, and the modular mode that sets up can less receive motorcycle type appearance design's restriction, is fit for installing at the figurative exercise bicycle type of different outward appearances, and this inner structure except can adorn on ordinary exercise bicycle, vertical exercise bicycle, still can adorn on elliptical machine, horizontal exercise bicycle.

The utility model discloses, the internal integrated structure of exercise bicycle, drive assembly uses in a flexible way, and the part is standardized, can design and convert gear drive, belt drive, chain drive etc. as required, and drive assembly adopts the big velocity ratio of multistage transmission, can adopt less resistance wheel to realize great resistance, and drive assembly structure is exquisite, design benefit, use in a flexible way, and resistance wheel size is optional, and these design conversions can be realized only simply with the transmission back shaft dress in the different mounting holes of extension board; during installation, the quick and convenient installation of the exercise bicycle can be realized only by installing the two support plates on the frame body.

The utility model discloses, the internal integrated structure of exercise bicycle need not the welding between the runner assembly to can save large-scale welding jig, avoid traditional exercise bicycle in the problem that the assembly process welding machine warp, whole part machining precision is high, and the installation is simple, can effectively reduce the working strength and the technical requirement of assembly line equipment production.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is a perspective view of a transmission structure according to a first embodiment of the present invention.

Fig. 3 is a front view of fig. 2.

Fig. 4 is a schematic view of the internal structure of fig. 2.

Fig. 5 is a perspective view of another perspective view of the transmission structure according to the first embodiment of the present invention.

Fig. 6 is a schematic view of the internal structure of fig. 5.

Fig. 7 is a perspective view of a transmission structure according to a second embodiment of the present invention.

Fig. 8 is a perspective view of another perspective view of a transmission structure according to a second embodiment of the present invention.

Fig. 9 is a schematic view of the internal structure of fig. 7.

Fig. 10 is a schematic view of the internal structure of fig. 8.

Fig. 11 is a schematic view of the inner structure in the lateral direction of fig. 7.

The device comprises a frame 1, a frame 101, a frame 2, a support plate 201, an adjusting hole 202, a clamping piece adjusting hole 203, a reinforcing rib 204, a transmission assembly positioning hole 205, a transmission assembly adjusting hole, a resistance wheel 3, a resistance wheel belt ring 301, a transmission assembly 4, a power wheel 401, a driving wheel 401a, a driven wheel 401b, a driven wheel 401c, a driven wheel belt ring 402, a first belt 403, a second belt 404, a first gear 405, a second gear 406, a first follow-up gear 407, a second follow-up gear 5, a first tensioning assembly 501, a first tensioning wheel plate 502, a first adjusting groove 503, a first tensioning wheel 6, a second tensioning assembly 601, a second tensioning wheel plate 602, a clamping piece 603, a second adjusting groove 604, a second tensioning wheel 7-damping assembly 701-a clamping piece 701-702-a clamping piece, a damping-connecting piece 703, a fixed seat 704, a pedal-rotating shaft 705, and a clamping piece 9-9.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

Referring to fig. 1, a novel exercise bicycle internal integration structure, including two extension boards 2, transmission assembly 4 and resistance wheel 3, corresponding position on two extension boards 2 is equipped with regulation hole 201, transmission assembly locating hole 204, transmission assembly 4 installs on transmission assembly locating hole 204, transmission assembly 4 sets up between two extension boards 2, transmission assembly 4 is connected for rotating with transmission assembly locating hole 204, resistance wheel 3 installs on regulation hole 201, resistance wheel 201 sets up between two extension boards 2, resistance wheel 3 is connected for rotating with regulation hole 201, transmission assembly 4 and resistance wheel 3 interconnect, transmission assembly 4's rotary motion can drive resistance wheel 3 and rotate, distance between every position and the transmission assembly locating hole 204 is different settings on the regulation hole 201, the axis of rotation swing joint of the resistance wheel 3 of different diameters is on regulation hole 201, with the reaction of regulation wheel 3 is in transmission assembly 4 resistance size. Drive assembly 4 includes power wheel 401, power wheel 401's axis of rotation is rotationally connected on drive assembly locating hole 204, be connected with pedal 9 through pedal crank 8 on power wheel 401, the exercise bicycle inner structure passes through extension board 2 mountable on the support body 101 of frame 1, the inside transmission structure of exercise bicycle, can adopt the modular mode, its drive assembly 4, resistance wheel 3 all installs between two extension boards 2, during the installation, only need install two extension boards 2 and just can realize the quick convenient installation of exercise bicycle on support body 101. The through-hole of arc form can be preferably adopted to regulation hole 201, transmission assembly locating hole 204 is kept away from to the crooked direction of the through-hole of arc form, the axis of rotation of resistance wheel 3 of different diameters can rotate the location in the position department that curved through-hole is different, utilize the different distance difference between arc different positions and the transmission assembly locating hole 204 to realize the supporting installation of resistance wheel 3 of different diameters, with 4 resistance size of counteraction in transmission assembly of regulation resistance wheel 3, regulation hole 201 also can be preferred a plurality of circular shape through-holes, refer to fig. 3, circular shape through-hole and resistance wheel 3's axis of rotation phase-match, regulation hole 201 is from top to bottom and is far away from transmission assembly locating hole 204 direction and arranges, namely, the regulation hole 201 of upper portion trompil is close to transmission assembly locating hole 204, be fit for the installation of resistance wheel 3 of small dimension, the regulation hole 201 of lower part trompil is because far away from transmission assembly locating hole 204, be fit for the installation of resistance wheel 3 of big specification, in view of the above, resistance wheel 3 of different diameter specifications can rotate according to the diameter size according to its resistance wheel 3 and connect in the most matched with regulation hole 201, in order to realize adjusting the resistance size of resistance wheel 3.

In the utility model, in order to improve the resistance of the resistance wheel 3, the outer edge of the resistance wheel 3 is preferably provided with a damping component 7, the damping component 7, refer to fig. 2 or fig. 4, the damping component 7 comprises a clamping piece 701 and a plurality of damping blocks 702, a connecting piece 703, a fixed seat 704 and a clamping piece rotating shaft 705, in order to adapt to the resistance wheels 3 with different diameters, the clamping piece 701 is arranged in an arc shape, the plurality of damping blocks 702 are arranged on the inner side of the clamping piece 701, the damping blocks 702 surround the outer edge side of the resistance wheel 3, one end of the clamping piece 701 is provided with the clamping piece rotating shaft 705, the clamping piece rotating shaft 705 is rotatably connected between the two support plates 2, the other end of the clamping piece 701 is provided with the connecting piece 703, the connecting piece 703 is connected on the fixed seat 704, the connecting piece 703 can preferably use a threaded rod, the threaded rod can be locked by a screw according to the buckling condition of the clamping piece 701, the connecting piece 703 can also preferably use a spring, and is fixed by the spring, only two ends of a spring are needed to be respectively connected between the clamping piece 701 and the fixing seat 704, automatic adjustment of the clamping piece 701 is realized by utilizing the elastic force tensioning action of the spring, so that the clamping piece 701 and the damping block 702 at the inner side of the arc-shaped part of the clamping piece 701 can surround the peripheral edge side of the resistance wheel 3 in an arc shape, and the clamping piece 701 can be installed at the upper part in a way matched with the rear resistance wheel 3, in the same way, a clamping piece rotating shaft 705 arranged at the lower end of the clamping piece 701 can be movably positioned at the lower end of the supporting plate 2, specifically, a clamping piece adjusting hole 202 is arranged at the lower side of the supporting plate 2, the clamping piece adjusting hole 202 corresponds to the adjusting hole 201, the clamping piece adjusting hole 202 can be arranged in an arc shape similar to the adjusting hole 201 or consist of a plurality of discrete round holes, so that the clamping piece adjusting hole 202 can form a one-to-one corresponding relation with the adjusting hole 201, when the resistance wheels 3 with different diameters are installed in the adjusting hole 201, and the clip rotating shaft 705 of the damping component 7 can be fixed on different positions of the corresponding clip adjusting hole 202 so as to adapt to the situation that the lower clip 701 and a plurality of damping blocks 702 in the clip 701 are matched in an arc shape and surround the outer peripheral side of the resistance wheel 3.

The utility model discloses, damping piece 702 can be the rubber piece, also can be the magnet piece, damping piece 702 utilizes the high frictional property of rubber in order to improve the purpose of resistance wheel 5 resistance, damping piece 702 also can utilize the magnetism of magnet piece, but 3 its materials of preferred resistance wheel adopt magnetic metal or have the magnetic force resistance of magnetic material metal in order to improve between resistance wheel 3 and the magnet piece in the wheel edge cladding of resistance wheel 3 to reach the purpose that improves resistance wheel 5 resistance.

Example 1

Referring to fig. 2-6, a first embodiment of the present invention is disclosed, which employs a modular transmission structure of belt transmission. Wherein, the transmission assembly 4 comprises a driving wheel 401a and a driven wheel 401b, the rotating shaft of the driving wheel 401a is rotatably connected to the transmission assembly positioning hole 204, the driven wheel 401b is provided with a coaxial driven wheel belt ring 401c, wherein the rotating shaft of the driven wheel 401b is rotatably connected to the transmission assembly adjusting hole 205, the transmission assembly adjusting hole 205 is a plurality of circular through holes, the transmission assembly adjusting hole 205 is arranged in a direction away from the transmission assembly positioning hole 204 from top to bottom, the driven wheel 401b can also be provided with different specifications and sizes, the driven wheel 401b can be different in size and can be correspondingly rotatably mounted at the transmission assembly adjusting holes 205 in different positions, a second belt 403 is arranged between the driving wheel 401a and the driven wheel 401b for connection, a second tensioning assembly 6 is further arranged between the driven wheel 401b and the driving wheel 401a, wherein, the second tensioning assembly 6 comprises a second tensioning wheel plate 601 and a tensioning fixing plate 602, the second tensioning wheel plate 601 is provided with a second adjusting groove 603 with a certain length, the second tensioning wheel plate 601 is provided with a shaft, the second tensioning wheel plate 601 is rotatably connected with a second tensioning wheel 604 through the shaft, the support plate 2 is connected by utilizing different positions of the second adjusting groove 603, the adjustable connection of the second adjusting groove 603 of the second tensioning wheel plate 601 and the support plate 2 is realized, so that the position of the second tensioning wheel 604 on the second tensioning plate 601 is realized, the tensioning fixing plate 602 can also fix the other end of the second tensioning wheel plate 601 relatively by a common connection mode such as a screw bolt, so that the fixation of the second tensioning wheel 604 is more stable, the second tensioning wheel 604 is pressed against the second belt 403 between the driven wheel 401b and the driving wheel 401a, so that the connection of the second belt 403 between the driven wheel 401b and the driving wheel 401a is tighter, and the second belt 403 is prevented from being separated in the use process of the exercise bicycle, a first tensioning assembly 5 is arranged between the driven wheel 401b and the resistance wheel 3, wherein the first tensioning assembly 5 comprises a first tensioning wheel plate 501, a first adjusting groove 502 with a certain length is arranged on the first tensioning wheel plate 501, a shaft is arranged on the first tensioning wheel plate 501, through the shaft, a first tensioning wheel 503 is rotatably connected to the first tensioning wheel plate 501, the support plate 2 is connected by using different positions of the first adjusting groove 502, adjustable connection between the first adjusting groove 502 of the first tensioning wheel plate 501 and the support plate 2 is realized, so that the position of the first tensioning wheel 503 on the first tensioning wheel plate 501 is realized, the other end of the first tensioning wheel plate 501 can be fixed on the support plate 2 through a common connecting mode such as a screw bolt, so that the fixing of the first tensioning wheel 503 is more stable, and the first belt 402 between the driving wheel 401a and the resistance wheel 3 is pressed through the first tensioning wheel 503, so that the connection between the driven wheel 401b and the resistance wheel 3 is more tight, and the first belt 402 is prevented from being separated in the using process of the exercise bicycle.

Example 2

Referring to fig. 7-11, a second embodiment of the present invention is disclosed, which employs a modular transmission structure of gear transmission. The transmission assembly 4 comprises a power wheel 401, a first gear 404, a second gear 405, a first follow-up gear 406 and a second follow-up gear 407, wherein the first gear 404, the power wheel 401 and the first follow-up gear 406 are coaxial, a rotating shaft of the power wheel 401 is rotatably connected to the transmission assembly positioning hole 204, and the second gear 405 and the second follow-up gear 407 are coaxial, wherein a rotating shaft of the second gear 405 is rotatably connected to the transmission assembly adjusting hole 205, the first gear 404 and the second gear 405 can also be provided with different specifications, the first gear 404 and the second gear 405 are different in size, correspondingly, the second gear 405 can be rotatably installed in the transmission assembly adjusting hole 205 at different positions, the second follow-up gear 407 and the first gear 404 are mutually meshed, the first follow-up gear 406 and the second gear 405 are mutually meshed, the second follow-up gear 407, the first gear 404, the first follow-up gear 406 and the second gear 405 form a gear transmission set with a certain resistance effect, and the resistance of the gear transmission set can be adjusted. Referring to the first embodiment, a belt can be arranged between the outer edge of the power wheel 401 and the resistance wheel belt loop 301 of the resistance wheel 3 to be connected together, the belt is not marked in the figure, a first tensioning assembly 5 is further arranged between the power wheel 401 and the resistance wheel 3, and the first tensioning assembly 5 is in the same embodiment as the first embodiment and is pressed against the belt between the power wheel 401 and the resistance wheel 3 through a first tensioning wheel 503 to realize that the belt connection between the power wheel 401 and the resistance wheel 3 is tighter, so that the belt of the exercise bicycle is prevented from being separated in the using process.

Example 3

Based on embodiment 1, the difference from embodiment 1 is that the belt connection in embodiment 1 is replaced by a chain, and correspondingly, the wheel is also changed into a chain wheel form, and other arrangements are changed.

The utility model discloses, transmission assembly 4's transmission mode, not only can be the transmission of belt and connect, can also still adopt gear drive's connection, can also adopt the connected mode of sprocket of course, the connected mode of transmission assembly 4's inside all can adopt the modular mode, its transmission assembly 4, resistance wheel 3 and for improving the damping subassembly 7 of resistance wheel 3 resistance all can install between two extension boards 2, during the installation, only need install two extension boards 2 and just can realize the quick convenient installation of exercise bicycle on support body 101. Moreover, the resistance wheel 3 with different specifications is adopted so as to adjust the resistance of the resistance wheel 3, so that the use requirements of different users are met, and the use range of the exercise bicycle is enlarged.

The above embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention.

Claims (8)

1. The utility model provides a novel exercise bicycle internal integration structure which characterized in that: the transmission assembly is arranged between the two support plates, the transmission assembly and the transmission assembly positioning hole are connected in a rotating mode, the resistance wheel is arranged on the adjusting hole, the resistance wheel is arranged between the two support plates, the resistance wheel is connected with the adjusting hole in a rotating mode, the distance between each position on the adjusting hole and the transmission assembly positioning hole is different, the rotating shafts of the resistance wheels with different diameters are movably connected to the adjusting hole, and the resistance force of the transmission assembly is adjusted by the aid of the resistance wheel.

2. The novel exercise bicycle internal integrated structure of claim 1, wherein: the transmission assembly and the resistance wheel are connected with each other through a gear or a belt or a chain.

3. The novel internal integrated structure of exercise bicycle of claim 1, wherein: the adjusting holes are arc-shaped through holes, and the bending directions of the arc-shaped through holes are far away from the transmission assembly positioning holes.

4. The novel internal integrated structure of exercise bicycle of claim 1, wherein: the adjusting holes are a plurality of circular through holes and are arranged in the direction away from the positioning holes of the transmission assembly from top to bottom.

5. The novel exercise bicycle internal integrated structure of claim 1, wherein: the support plate is further provided with transmission assembly adjusting holes, the transmission assembly adjusting holes are a plurality of circular through holes, and the transmission assembly adjusting holes are arranged in the direction away from the transmission assembly positioning holes from top to bottom.

6. The novel exercise bicycle internal integrated structure of claim 1, wherein: still install damping assembly between two extension boards, damping assembly include fastener, a plurality of damping piece, connecting piece, fixing base and fastener pivot, the fastener be the arc setting, be located the inboard of fastener and install a plurality of damping piece, just damping piece surround in resistance wheel periphery side, the one end of fastener is equipped with the fastener pivot just the fastener pivot is connected with rotating between two extension boards, the other end of fastener passes through the fixing base on connecting piece and the extension board is connected, the lower part of extension board is equipped with the fastener regulation hole, the fastener regulation hole is used for adjusting the fastener and is in position on the extension board.

7. The novel internal integrated structure of exercise bicycle of claim 2, wherein: the transmission assembly further comprises a first belt and a second belt, the transmission assembly comprises a driving wheel and a driven wheel, a coaxial driven wheel belt ring is arranged on the driven wheel, a coaxial resistance wheel belt ring is arranged on the resistance wheel, a first belt surrounding the first tensioning assembly is arranged between the driven wheel and the resistance wheel, a second tensioning assembly is arranged between the driven wheel and the driving wheel and comprises a second tensioning wheel plate and a tensioning fixing plate, a second adjusting groove is arranged on the second tensioning wheel plate, a second tensioning wheel is rotatably connected to the second tensioning wheel plate, and a second belt surrounding the second tensioning assembly is arranged between the driven wheel and the driving wheel.

8. The novel internal integrated structure of exercise bicycle of claim 2, wherein: the transmission assembly comprises a power wheel, a first gear, a second gear, a first follow-up gear and a second follow-up gear, wherein the first gear, the power wheel and the first follow-up gear are coaxial, the second gear and the second follow-up gear are coaxial, the second follow-up gear and the first gear are meshed with each other, and the first follow-up gear and the second gear are meshed with each other.

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