Resistance-adjustable spinning

Abstract

The utility model belongs to the technical field of spinning bicycles, and particularly relates to a resistance-adjustable spinning bicycle which comprises a bicycle frame, a driven wheel is arranged at the position of a front fork of the bicycle frame, rotating shafts are fixedly connected to the two sides of the driven wheel, the driven wheel is rotationally connected to the bicycle frame through the rotating shafts, and a second wheel disc and a first wheel disc are connected through a belt. A resistance adjusting mechanism is arranged below the rotating shaft on the other side of the driven wheel; the resistance adjusting mechanism comprises a friction block making contact with the rotating shaft, the friction block is arranged on an installation block, a pressure sensor is installed on the lower side face of the installation block, and a telescopic push rod is arranged below the pressure sensor. The pressure of the telescopic push rod on the friction block can be detected, then the pressure between the friction block and the rotating shaft can be obtained, then the resistance value of the rotating shaft can be measured and calculated, and the resistance of the spinning can be adjusted more accurately.

Description

Technical Field

[0001] This invention belongs to the field of exercise bike technology, specifically relating to an adjustable resistance exercise bike. Background Technology

[0002] Spinning is a unique and energetic indoor cycling training program that combines music and visual effects. After exercising on a spinning bike, the body's cardiopulmonary function, muscle endurance, and explosive power will be improved. However, this also greatly reduces the original training effect of spinning bikes. In order to increase the applicability of spinning bikes, adjustable resistance needs to be set for different users.

[0003] For example, Chinese Patent Publication No. CN207654615U discloses an adjustable-resistance exercise bike. This device includes a frame, handlebars, a seat for supporting the rider, a transmission mechanism, and a resistance mechanism. The transmission mechanism includes a drive wheel, a transmission belt, and a driven wheel, with a rotating shaft fixed at the center of the driven wheel. The resistance mechanism includes two rotating arms and a friction belt connecting the two rotating arms. The friction belt partially abuts against the driven wheel. Each rotating arm includes a lower rotating arm and an upper rotating arm, with the lower and upper rotating arms secured together by a first bolt. This device adjusts the contact area between the friction belt and the driven wheel by adjusting the rotation of the rotating arms and the extension / retraction between the upper and lower rotating arms, thereby making the resistance during movement adjustable.

[0004] For example, in the prior art described in the aforementioned patent, although the resistance of the exercise bike can be adjusted during exercise, the adjusted resistance is displayed unchanged, so the exerciser can only adjust the resistance based on their own feeling, resulting in poor exercise effect. Utility Model Content

[0005] The purpose of this invention is to provide a resistance-adjustable exercise bike that can monitor the pressure between the friction block and the wheel, calculate the magnitude of the resistance on the wheel, and display the numerical value.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] An adjustable resistance exercise bike includes a frame. A driven wheel is mounted on the front fork of the frame. A pivot is fixedly connected to both sides of the driven wheel, and the driven wheel is rotatably connected to the frame via the pivots. A first wheel disc is rotatably mounted at the end of the frame furthest from the front fork. A second wheel disc is fixedly mounted on the pivot on one side of the driven wheel, and the second wheel disc is connected to the first wheel disc via a belt. A resistance adjustment mechanism is located below the pivot on the other side of the driven wheel. The resistance adjustment mechanism includes a friction block that contacts the pivot. The friction block is mounted on a mounting block. A pressure sensor is mounted on the lower side of the mounting block, and a telescopic push rod is located below the pressure sensor.

[0008] In a preferred embodiment, foot pedals are provided on both sides of the wheel, and a seat cushion is also installed on the frame.

[0009] In a preferred embodiment, the lower end of the friction block is provided with a locking block, the inner side of the mounting block is provided with a locking groove, the friction block is engaged with the mounting block in the locking groove by the locking block, and a locking rod is connected through the side of the mounting block, the locking rod and the mounting block are threadedly engaged.

[0010] In a preferred embodiment, a guide rod is threaded through one end of the mounting block, and the lower end of the guide rod is fixedly mounted on the vehicle frame.

[0011] In a preferred embodiment, the telescopic push rod is positioned directly below the pressure sensor, and the lower end of the telescopic push rod is fixedly connected to the vehicle frame.

[0012] In a preferred embodiment, a control mechanism is also provided above the frame. The control mechanism includes a display screen and adjustment buttons. The control mechanism is wiredly connected to the pressure sensor and the telescopic push rod.

[0013] The technical effects achieved by this utility model are as follows:

[0014] This practical resistance adjustment mechanism uses the upward extension of a telescopic push rod to push the friction block upward and make it contact the rotating shaft to generate friction. The length of the extension of the telescopic push rod can be adjusted to change the pressure value generated by the friction block on the rotating shaft, thereby changing the resistance value on the rotating shaft and thus changing the resistance value of the exercise bike. In addition, pressure sensors are set in the friction block and the telescopic push rod to detect the pressure generated by the telescopic push rod on the friction block, thereby determining the pressure between the friction block and the rotating shaft, and then calculating the resistance value generated on the rotating shaft, making the resistance adjustment of the exercise bike more accurate.

[0015] This practical friction block is snapped into the slot of the mounting block by a locking mechanism, making the friction block and the mounting block detachable. This facilitates the replacement of the friction block and improves the performance of the exercise bike. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the side of the practical frame with the drag adjustment mechanism;

[0017] Figure 2 This is a schematic diagram of the equiaxed side structure of the driven wheel side of the practical frame;

[0018] Figure 3 This is an enlarged schematic diagram of the practical resistance adjustment mechanism installed on one side of the driven wheel;

[0019] Figure 4 This is an enlarged schematic diagram of the connection between the rotating shaft and the resistance adjustment mechanism in this practical application.

[0020] Figure 5 This is an enlarged, disassembled structural diagram of the card block and mounting block in this practical application.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Frame; 2. Resistance adjustment mechanism; 3. Control mechanism; 11. Driven wheel; 12. Wheel 1; 13. Pedal; 14. Axle; 15. Wheel 2; 16. Belt; 17. Seat; 21. Friction block; 22. Mounting block; 23. Pressure sensor; 24. Telescopic push rod; 211. Locking block; 221. Guide rod; 222. Slot; 223. Locking rod; 31. Display screen; 32. Adjustment button. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of this utility model. However, this utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this utility model. The phrase "in a preferred embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When detailing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Please see the appendix Figures 1 to 3 As shown, this utility model provides a resistance-adjustable exercise bike, including a frame 1. A driven wheel 11 is provided at the front fork of the frame 1. A rotating shaft 14 is fixedly connected to both sides of the driven wheel 11. The driven wheel 11 is rotatably connected to the frame 1 through the rotating shaft 14. A first wheel 12 is rotatably provided at the end of the frame 1 away from the front fork. A second wheel 15 is fixedly installed on the rotating shaft 14 on one side of the driven wheel 11. The second wheel 15 is connected to the first wheel 12 through a belt 16. A resistance adjustment mechanism 2 is provided below the rotating shaft 14 on the other side of the driven wheel 11. The resistance adjustment mechanism 2 includes a friction block 21 that contacts the rotating shaft 14. The friction block 21 is provided on a mounting block 22. A pressure sensor 23 is installed on the lower side of the mounting block 22. A telescopic push rod 24 is provided below the pressure sensor 23. Pedals 13 are provided on both sides of the first wheel 12. A seat 17 is also installed on the frame 1.

[0028] In this embodiment, when an exerciser uses a stationary bike, the exerciser sits on the seat 17 and places both feet on the pedals 13. By pedaling the pedals 13, the exerciser drives the first wheel 12 on the frame 1 to rotate. The first wheel 12, connected by the belt 16, drives the second wheel 15 to rotate. Since the second wheel 15 and the driven wheel 11 are both fixedly mounted on the shaft 14, the rotation of the second wheel 15 can simultaneously drive the driven wheel 11 to rotate. During exercise, the control mechanism 3 can control the telescopic push rod 24 in the resistance adjustment mechanism 2 to extend upward and push the friction block 21 upward, so that it contacts the shaft 14 and generates friction, which can provide resistance to the rotation of the driven wheel 11. By changing the pressure applied to the friction block 21, the resistance between the friction block 21 and the shaft 14 can be changed. The pressure sensor 23 can detect the pressure value applied to the friction block 21, and then calculate a more accurate resistance between the friction block 21 and the shaft 14.

[0029] In this embodiment, the resistance adjustment mechanism 2 pushes the friction block 21 upward by extending the telescopic push rod 24, causing it to contact the rotating shaft 14 and generate friction. The length of the extension of the telescopic push rod 24 can adjust the pressure value generated by the friction block 21 on the rotating shaft 14, thereby changing the resistance to the rotating shaft 14 and thus changing the resistance of the exercise bike. In addition, a pressure sensor 23 is set between the friction block 21 and the telescopic push rod 24 to detect the pressure generated by the telescopic push rod 24 on the friction block 21, thereby determining the pressure between the friction block 21 and the rotating shaft 14. Then, the resistance value generated on the rotating shaft 14 can be calculated, making the resistance adjustment of the exercise bike more accurate.

[0030] In this embodiment, the pressure received by the pressure sensor 23 is the pressure exerted by the friction block 21 on the rotating shaft 14. Given the friction coefficient of the friction block 21, the resistance value exerted by the friction block 21 on the rotating shaft 14 is the product of the friction coefficient and the normal pressure value exerted by the friction block 21 on the rotating shaft 14. Thus, the resistance value exerted by the friction block 21 on the driven wheel 11 can be obtained.

[0031] Please see Figure 4 As shown, the lower end of the friction block 21 is provided with a locking block 211, and the inner side of the mounting block 22 is provided with a locking groove 222. The friction block 21 is engaged and connected in the locking groove 222 of the mounting block 22 through the locking block 211. A locking rod 223 is connected through the side of the mounting block 22, and the locking rod 223 and the mounting block 22 are connected by a threaded engagement.

[0032] In this embodiment, the friction block 21 is installed by engaging the locking block 211 into the slot 222 of the mounting block 22. After installation, the locking rod 223 is tightened so that the inner end of the locking rod 223 presses against the locking block 211 to lock the friction block 21 and the mounting block 22. In addition, since the friction block 21 is a consumable, when it is worn out, the friction block 21 is removed from the mounting block 22 and replaced.

[0033] Specifically, the friction block 21 is engaged in the slot 222 of the mounting block 22 by the locking block 211, so that the friction block 21 and the mounting block 22 are detachable, making it easy to replace the friction block 21 and making the exercise bike more effective.

[0034] One end of the mounting block 22 is connected to a guide rod 221, and the lower end of the guide rod 221 is fixedly mounted on the frame 1.

[0035] The guide rod 221 is threaded through the mounting block 22, so that when the telescopic push rod 24 extends to push the mounting block 22 and the friction block 21 to move up and down, the guide rod 221 can make the mounting block 22 and the friction block 21 have a straight up and down movement, so that the friction block 21 has better stability when it contacts the rotating shaft 14.

[0036] The telescopic push rod 24 is positioned directly below the pressure sensor 23, and the lower end of the telescopic push rod 24 is fixedly connected to the frame 1.

[0037] The telescopic push rod 24 is positioned directly below the pressure sensor 23, so that the pushing force of the telescopic push rod 24 on the friction block 21 on the rotating shaft 14 is a positive pressure. This makes the calculation of the resistance value generated by the friction block 21 on the rotating shaft 14 more accurate.

[0038] A control mechanism 3 is also provided on the top of the frame 1. The control mechanism 3 includes a display screen 31 and an adjustment button 32. The control mechanism 3 is wiredly connected to the pressure sensor 23 and the telescopic push rod 24.

[0039] Since the control mechanism 3 is electrically connected to the pressure sensor 23 and the telescopic push rod 24, the extension length of the telescopic push rod 24 can be controlled by operating the adjustment button 32, thereby changing the magnitude of the pressure generated by the friction block 21 on the rotating shaft 14, so that the friction block 21 produces different resistance effects on the rotating shaft 14. Moreover, the pressure detected by the pressure sensor 23 is transmitted to the control mechanism 3, and the control mechanism 3 calculates the magnitude of the resistance on the rotating shaft 14 and displays it on the display screen 31 for the reference of the athlete.

[0040] The working principle of this utility model is as follows: When an exerciser uses a stationary bike, their feet pedal on pedal 13. Pedaling pedal 13 causes wheel 12 on the frame 1 to rotate. Wheel 12, connected by belt 16, causes wheel 15 to rotate. Since wheel 15 and driven wheel 11 are both fixedly mounted on axle 14, the rotation of wheel 15 simultaneously drives the driven wheel 11 to rotate. During exercise, the telescopic push rod 24 in the resistance adjustment mechanism 2 can be extended upward by the control mechanism 3, pushing the friction block 21 upward to contact the axle 14 and generate friction, providing resistance to the rotation of the driven wheel 11. By changing the pressure applied to the friction block 21, the resistance between the friction block 21 and the axle 14 is changed. The pressure sensor 23 can detect the pressure applied to the friction block 21, thereby calculating a more accurate resistance between the friction block 21 and the axle 14.

[0041] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A resistance-adjustable exercise bike, characterized in that: The bicycle includes a frame (1), a driven wheel (11) is provided at the front fork of the frame (1), and a rotating shaft (14) is fixedly connected to both sides of the driven wheel (11). The driven wheel (11) is rotatably connected to the frame (1) through the rotating shaft (14). A wheel disc (12) is rotatably provided at the end of the frame (1) away from the front fork. A wheel disc (15) is fixedly installed on the rotating shaft (14) on one side of the driven wheel (11). The wheel disc (15) and the wheel disc (12) are connected by a belt (16). A resistance adjustment mechanism (2) is provided below the shaft (14) on the other side of the driven wheel (11); The resistance adjustment mechanism (2) includes a friction block (21) that contacts the rotating shaft (14). The friction block (21) is mounted on the mounting block (22). A pressure sensor (23) is mounted on the lower side of the mounting block (22). A telescopic push rod (24) is provided below the pressure sensor (23).

2. The adjustable resistance exercise bike according to claim 1, characterized in that: Foot pedals (13) are provided on both sides of the wheel (12), and a seat cushion (17) is also installed on the frame (1).

3. The adjustable resistance exercise bike according to claim 1, characterized in that: The lower end of the friction block (21) is provided with a locking block (211), and the inner side of the mounting block (22) is provided with a locking groove (222). The friction block (21) is engaged with the mounting block (222) through the locking block (211). The side of the mounting block (22) is connected by a locking rod (223), and the locking rod (223) and the mounting block (22) are connected by a threaded engagement.

4. The adjustable resistance exercise bike according to claim 1, characterized in that: One end of the mounting block (22) is connected to a guide rod (221), and the lower end of the guide rod (221) is fixedly mounted on the frame (1).

5. The adjustable resistance exercise bike according to claim 1, characterized in that: The telescopic push rod (24) is located directly below the pressure sensor (23), and the lower end of the telescopic push rod (24) is fixedly connected to the frame (1).

6. The adjustable resistance exercise bike according to claim 1, characterized in that: A control mechanism (3) is also provided above the frame (1). The control mechanism (3) includes a display screen (31) and an adjustment button (32). The control mechanism (3) is wiredly connected to the pressure sensor (23) and the telescopic push rod (24).

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