An electric adjustable resistance exercise bike

Abstract

This utility model relates to the field of exercise equipment technology, specifically an electric adjustable resistance exercise bike, including a main frame welded together, inclined support legs, a pedal transmission structure, a flywheel, a brake bracket, a spring, a fixing plate, a handle, an electric magnetic resistance structure, and a drive device. The main frame welded together has two inclined support legs at its bottom. A pedal transmission structure is installed below the first inclined support leg, and a flywheel connected to the pedal transmission structure is installed behind the second inclined support leg. A brake bracket and an electric magnetic resistance structure are located between the flywheel and the second inclined support leg. Compared with existing technologies, this utility model adds an independent magnetic bracket and brake bracket at the flywheel, used for magnetic control adjustment and braking functions, and manual braking function, respectively. This makes the resistance adjustment and braking functions independent, improving the stability and safety of the exercise bike. Electric adjustment allows for precise control of the exercise bike's resistance while also improving the efficiency and convenience of resistance adjustment.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment technology, specifically an electric adjustable resistance exercise bike. Background Technology

[0002] As a type of exercise equipment, exercise bikes are commonly used in small to medium-sized outdoor sports activities involving multiple people. When using an exercise bike, it's often necessary to adjust the resistance of the flywheel to meet the different fitness needs of users. Currently, resistance adjustment is mainly achieved through a manual adjustment mechanism.

[0003] like Figure 1 As shown, the manual adjustment mechanism mainly consists of a magnet 904, a brake magnetic base assembly 17, a common spring 18, and felt 19, with the magnet 904 and felt 19 integrated into a single component. During use, situations may arise where resistance adjustment is insignificant or excessive; interference may also occur between the brake and the magnetic control components of the manual adjustment mechanism. Existing manual adjustment mechanisms suffer from difficulties in resistance adjustment and low accuracy, making them inconvenient for users.

[0004] Therefore, it is necessary to design an electric adjustable resistance exercise bike to avoid interference between the brake and magnetic control functions when manually adjusting the resistance, thereby improving the accuracy and controllability of resistance adjustment and enhancing the user experience. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, this utility model provides an electric adjustable resistance exercise bike, which avoids mutual interference between the brake and magnetic control functions during manual adjustment, improves the accuracy and controllability of resistance adjustment, and enhances the user experience.

[0006] To achieve the above objectives, this utility model designs an electric adjustable resistance exercise bike, including a main frame welded together, inclined support legs, a pedal transmission structure, a flywheel, a brake frame, a spring, a fixing plate, a handle, an electric magnetic resistance structure, and a drive device. The main frame welded together has two inclined support legs at its bottom. A pedal transmission structure is installed below the first inclined support leg. A flywheel connected to the pedal transmission structure is installed behind the second inclined support leg. A brake frame and an electric magnetic resistance structure are located between the flywheel and the second inclined support leg. Brake pads are adhered to the side of the brake frame facing the flywheel. The ends of the brake frame and the first fixing plate are also connected. Each component is connected to the second inclined support foot. The other end of the brake frame is connected to the first fixed plate with a spring. One end of the first steel wire is connected to the handle. The other end of the first steel wire passes through the first fixed plate and the first spring and is connected to the other end of the brake frame. The electromagnetic reluctance structure includes a magnet frame, a second steel wire, a second spring, a magnet, and a hanging plate. The magnet is adhered to the side of the magnet frame facing the flywheel. The hanging plate is welded to the main frame. The end extension structure of the magnet frame is connected to the hanging plate by the second spring. The end of the magnet frame is connected to the second inclined support foot. The other end of the magnet frame is connected to the movable end of the drive device by the second steel wire.

[0007] The foot pedal transmission structure includes a pulley, a foot pedal, and a belt. The pulley is rotatably mounted in the middle of the inclined support foot. Foot pedals are provided on the left and right sides of the pulley. The pulley and the flywheel are connected by a belt.

[0008] The main frame welding has two branch pipes above it. The two branch pipes are respectively equipped with armrest adjustment welding and seat adjustment pipe. The armrest adjustment welding is equipped with a handle and an L-shaped bracket. The L-shaped bracket is equipped with a touch screen display. The seat is equipped with a seat on the seat adjustment pipe.

[0009] The driving device is a motor, which is mounted on the main frame welded together via a fixing plate two.

[0010] The inclined support leg two is fixed to the brake frame and the magnet frame with screws and nuts, and a copper sleeve is provided between the screw and the mounting hole of the inclined support leg two.

[0011] Compared with the prior art, this utility model adds an independent magnet bracket and brake bracket to the flywheel, which are used for magnetic control adjustment and braking functions, and manual braking functions, respectively. This makes the resistance adjustment and braking functions independent of each other, improving the stability and safety of the exercise bike. The electric adjustment not only enables precise control of the exercise bike's resistance, but also improves the efficiency and convenience of resistance adjustment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the existing technology.

[0013] Figure 2This is a schematic diagram of the structure of this utility model.

[0014] Figure 3 This is a partially enlarged view of the electric adjustment structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the installation of the brake bracket of this utility model.

[0016] See Figures 1 to 4 1 is the main frame welded together; 101 is the armrest adjustment welded together; 102 is the seat adjustment tube; 103 is the first inclined support foot; 104 is the second inclined support foot; 1040 is the mounting slot; 1041 is the mounting hole; 2 is the foot pedal transmission structure; 201 is the pulley; 202 is the foot pedal rod; 203 is the belt; 3 is the flywheel; 301 is the flywheel fixing slot; 4 is the brake bracket; 41 is the brake pad; 5 is the first spring; 6 is the first fixing plate; 7 is the first steel wire; 8 is the hand handle; 9 is the electric magnetic resistance structure; 901 is the magnet bracket; 902 is the second steel wire; 903 is the second spring; 904 is the magnet; 905 is the hanging plate; 10 is the drive structure; 11 is the L-shaped bracket; 12 is the seat; 13 is the second fixing plate; 14 is the copper sleeve; 15 is the screw; 16 is the nut; 17 is the brake magnetic seat assembly; 18 is the ordinary spring; 19 is the wool felt. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 2 As shown, this utility model is an electric adjustable resistance exercise bike, including a main frame welded together, inclined support feet, a foot pedal transmission structure, a flywheel, a brake frame, a spring, a fixing plate, a handle, an electric magnetic resistance structure, and a drive device. The bottom of the main frame welded together 1 is equipped with inclined support feet 103 and 104 to ensure the stability of the exercise bike. A foot pedal transmission structure 2 is installed below the inclined support feet 103, and a flywheel 3 connected to the foot pedal transmission structure 2 is installed behind the inclined support feet 104. A brake frame 4 and an electric magnetic resistance structure 9 are located between the flywheel 3 and the inclined support feet 104. By adjusting the resistance of the flywheel 3, the exercise bike can be adjusted to a suitable mode. Brake pads 41 are adhered to the side of the brake frame 4 facing the flywheel 3. The larger the contact area between the brake pads 41 and the flywheel 3, the greater the friction, thereby achieving braking. The end of the brake bracket 4 and the end of the fixing plate 6 are respectively connected to the inclined support foot 104. A spring 5 is provided between the other end of the brake bracket 4 and the fixing plate 6. One end of the steel wire 7 is connected to the handle 8. The other end of the steel wire 7 passes through the fixing plate 6 and the spring 5 and is connected to the other end of the brake bracket 4.

[0019] like Figure 3As shown, the electromagnetic reluctance structure 9 includes a magnet frame 901, a second steel wire 902, a second spring 903, a magnet 904, and a hanging plate 905. The magnet 904 is attached to the side of the magnet frame 901 facing the flywheel 3. The hanging plate 905 is welded to the main frame welding 1. The end extension structure of the magnet frame 901 is connected to the hanging plate 905 by the second spring 903. The end of the magnet frame 901 is connected to the second inclined support foot 104. The other end of the magnet frame 901 is connected to the movable end of the drive device 10 by the second steel wire 902.

[0020] Preferably, the drive device 10 is a motor, which is mounted on the main frame welding 1 via a fixing plate 2 13.

[0021] The main frame weld 1 has two branch pipes above it. The two branch pipes are respectively equipped with armrest adjustment weld 101 and seat adjustment pipe 102. The armrest adjustment weld 101 is equipped with a handle 8 and an L-shaped bracket 11. The L-shaped bracket 11 is equipped with a touch screen display. The seat adjustment pipe 102 is equipped with a seat 12. The front and rear branch structure of the main frame weld 1 provides overall stability and load-bearing capacity.

[0022] The foot pedal transmission structure 2 includes a pulley 201, a foot pedal 202, and a belt 203. The pulley 201 is rotatably mounted in the middle of the inclined support foot 103. Foot pedals 202 are provided on the left and right sides of the pulley 201. The pulley 201 is connected to the flywheel 3 by the belt 203. The user drives the foot pedal 202 to rotate by stepping on the foot pedal, thereby driving the flywheel 3 to rotate through the pulley 201 and the belt 203.

[0023] like Figure 4 The inclined support leg 104 shown is fixed to the brake bracket 4 with screws 15 and nuts 16. The brake bracket 4 is located between the two sides of the inclined support leg 104. After the screws 15 pass through the inclined support leg 104 and the brake bracket 4, they are tightened with nuts 16. A copper sleeve 14 is provided between the screws 15 and the mounting holes of the inclined support leg 104.

[0024] The second inclined support leg 104 is fixed to the magnet frame 901 using screws 15 and nuts 16. The magnet frame 901 is located between the two sides of the second inclined support leg 104. After the screws 15 pass through the second inclined support leg 104 and the magnet frame 901, they are tightened with nuts 16. A copper sleeve 14 is provided between the screws 15 and the mounting holes of the second inclined support leg 104. The installation method of the magnet frame 901 is the same as that of the brake frame 4. Figure 4 This can also be viewed as the way the magnet holder 901 is installed, therefore the installation structure of the magnet holder 901 is not shown separately in the attached drawings.

[0025] The mounting structure of the brake bracket 4 and the magnet bracket 901 allows the brake bracket 4 and the magnet bracket 901 to rotate clockwise or counterclockwise around the fixed point, thereby adjusting the distance between the brake bracket 4 and the flywheel 3 or the magnet bracket 901 and the flywheel 3, and realizing braking, resistance adjustment or reset.

[0026] During use, the user can pull the handle 8, which pulls the brake bracket 4 via the steel wire 7, causing the brake bracket 4 to rotate counterclockwise around a fixed position. This causes the brake pad 41 to contact the flywheel 3, generating frictional resistance and stopping the flywheel 3. After the flywheel stops, releasing the handle 8 causes the brake bracket 4 to return to its original position under the elastic force of the spring 5, separating the brake pad 41 from the flywheel 3.

[0027] Braking can also be achieved by controlling the drive unit 10 via a touch screen. Upon receiving a command, the movable end of the drive unit 10 extends, the force exerted on the magnet frame 901 by the second steel wire 902 disappears, and under the action of the second spring 903, the magnet frame 901 rotates counterclockwise around its fixed position. The distance between the magnet 904 of the magnet frame 901 and the flywheel 3 gradually decreases, and the resistance increases accordingly until the flywheel 3 stops moving. After the flywheel 3 stops, the movable end of the drive unit 10 returns to its original position, stretching the second steel wire 902, and the magnet frame 901 rotates clockwise around its fixed position, separating the magnet 904 from the flywheel 3.

[0028] Users can control the drive device 10 via the touchscreen display to adjust resistance. Upon receiving a command, the movable end of the drive device 10 retracts or extends, causing the magnet frame 901 to rotate clockwise or counterclockwise around a fixed position under the action of the steel wire 902 and the spring 903. This adjusts the distance between the magnet frame 901 and the flywheel 3, achieving different resistance levels. When the user finishes exercising, the movable end of the drive device 10 returns to its original position, the force applied to the steel wire 902 disappears, and the magnet frame 901 rotates counterclockwise around its fixed position to return to its original position under the action of the spring 903.

[0029] The brake bracket 4 and magnet bracket 901 are installed independently to avoid interference between the mechanical brake and the magnetic control system, thus improving the adjustment accuracy. Users can manually or electrically adjust the resistance to meet the needs of different exercise intensities. At the same time, the equipment has a stable structure and is easy to operate, making it suitable for rehabilitation training or daily fitness.

[0030] This invention adds independent magnet brackets and brake brackets to the flywheel, which are used for magnetic control adjustment and braking functions, as well as manual braking functions, respectively. This makes the resistance adjustment and braking functions independent of each other, improving the stability and safety of the exercise bike. The electric adjustment not only enables precise control of the exercise bike's resistance, but also improves the efficiency and convenience of resistance adjustment.

Claims

1. An electrically adjustable resistance exercise bicycle, comprising a main frame welding, an inclined support foot, a pedal driving structure, a flywheel, a brake frame, a spring, a fixed sheet, a hand pull handle, an electric magnetic resistance structure, a driving device, the main frame welding (1) is provided with an inclined support foot one (103) and an inclined support foot two (104), the pedal driving structure (2) is installed below the inclined support foot one (103), the flywheel (3) connected with the pedal driving structure (2) is installed at the back of the inclined support foot two (104), characterized in that: A brake bracket (4) and an electromagnetic reluctance structure (9) are provided between the flywheel (3) and the second inclined support foot (104). The brake pads (41) are attached to the side of the brake bracket (4) facing the flywheel (3). The end of the brake bracket (4) and the end of the first fixing plate (6) are respectively connected to the second inclined support foot (104). A spring (5) is provided between the other end of the brake bracket (4) and the first fixing plate (6). One end of the first steel wire (7) is connected to the handle (8). The other end of the first steel wire (7) passes through the first fixing plate (6) and the first spring (5) and is connected to the other end of the brake bracket (4). 9) Includes a magnet frame (901), a second steel wire (902), a second spring (903), a magnet (904), and a hanging plate (905). The magnet (904) is attached to the side of the magnet frame (901) facing the flywheel (3). The hanging plate (905) is welded to the main frame weld (1). The end extension structure of the magnet frame (901) is connected to the hanging plate (905) by the second spring (903). The end of the magnet frame (901) is connected to the second inclined support foot (104). The other end of the magnet frame (901) is connected to the movable end of the drive device (10) by the second steel wire (902).

2. The electrically motorized adjustable resistance exercise bike of claim 1, wherein: The foot pedal transmission structure (2) includes a pulley (201), a foot pedal (202), and a belt (203). The pulley (201) is rotatably installed in the middle of the inclined support foot (103). Foot pedals (202) are provided on the left and right sides of the pulley (201). The pulley (201) and the flywheel (3) are connected by a belt (203).

3. The electrically motorized adjustable resistance exercise bike of claim 1, wherein: The main frame weld (1) has two branch pipes above it. The two branch pipes are respectively equipped with armrest adjustment weld (101) and seat adjustment pipe (102). The armrest adjustment weld (101) is equipped with a handle (8) and an L-shaped bracket (11). The L-shaped bracket (11) is equipped with a touch screen display. The seat adjustment pipe (102) is equipped with a seat (12).

4. The electrically motorized adjustable resistance exercise bike of claim 1, wherein: The driving device (10) is a motor, which is mounted on the main frame welded (1) via a fixing plate two (13).

5. The electrically motorized adjustable resistance exercise bike of claim 1, wherein: The inclined support leg 2 (104) is fixed to the brake frame (4) and the magnet frame (901) by screws (15) and nuts (16). A copper sleeve (14) is provided between the screw (15) and the mounting hole of the inclined support leg 2 (104).

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