A home gym barbell with automatic weight adjustment

Abstract

This utility model discloses a home fitness barbell with automatic weight adjustment, including a barbell bar, a gyroscope assembly, and a control assembly. The barbell bar has a hollow cylindrical structure, and the gyroscope assembly is disposed inside the barbell bar. The gyroscope assembly includes a gyroscope rotor, a drive motor, a bearing bracket, a control circuit board, and a lithium battery pack. The control assembly is installed on the top surface of the barbell bar and includes a microprocessor, a speed sensor, a Hall sensor, touch buttons, and a display screen. The microprocessor is electrically connected to the control circuit board. This utility model has the advantages of simple structure, low cost, continuous adjustment of the fitness barbell weight while maintaining the feeling of traditional gravity training, and significant savings in storage space due to the elimination of multiple sets of dumbbell plates, thus improving the safety factor during use.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically to a home fitness barbell with automatic weight adjustment. Background Technology

[0002] A barbell is a core training tool used in weightlifting. Barbell exercises are a type of weight training that utilizes barbell equipment to improve muscle strength; it can also be used for core training to promote overall coordination. Traditional barbell weight adjustment relies on adding or removing dumbbell plates, which has the following drawbacks: It's cumbersome: each weight adjustment requires manually removing and installing dumbbell plates, which is time-consuming; fixed weight increments: the weight of the dumbbell plates is fixed, making continuous fine-tuning impossible; storage space requirements: multiple sets of dumbbell plates of different weights are needed, occupying significant storage space; safety hazards: improper installation of dumbbell plates can lead to them falling off and causing accidents.

[0003] While some electronically adjustable barbells exist in the existing technology, most of them use electromagnetic or hydraulic resistance principles, which are complex in structure, expensive, and cannot provide the same exercise experience as traditional gravity training. Therefore, a home fitness barbell with automatic weight adjustment is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a home fitness barbell with automatic weight adjustment to solve the problems mentioned in the background art, such as the cumbersome operation of traditional barbells, fixed weight increments, large storage space, and safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A home fitness barbell with automatic weight adjustment, including The barbell bar has a hollow cylindrical structure. A gyroscope assembly is disposed inside the barbell bar, and the gyroscope assembly includes a gyroscope rotor, a drive motor, a bearing bracket, a control circuit board, and a lithium battery pack; A control assembly is mounted on the top surface of the barbell bar. The control assembly includes a microprocessor, a speed sensor, a Hall sensor, touch buttons, and a display screen. The microprocessor is electrically connected to the control circuit board. The drive motor drives the gyroscope rotor to rotate at high speed, so as to generate an equivalent weight on the barbell bar through the gyro effect. The drive motor is electrically connected to the microprocessor. The microprocessor is remotely connected to a mobile terminal through a wireless communication module.

[0006] Furthermore, the control component also includes a speed sensor and a Hall sensor mounted on the drive motor, both of which are electrically connected to the microprocessor.

[0007] Furthermore, the middle section of the barbell bar is a gyroscope mounting position, and the gyroscope assembly is mounted on the gyroscope mounting position. Both ends of the barbell bar have grip areas, and the grip areas are made of rubber sleeves.

[0008] Furthermore, the control circuit board is provided with a charging interface, which is electrically connected to the lithium battery pack through a charging circuit.

[0009] Furthermore, the gyroscope rotor is made of high-density alloy material, and the overall structure of the gyroscope rotor is disc-shaped.

[0010] The beneficial effects of this utility model are: This invention features a simple structure, low cost, and the ability to continuously adjust the weight of a fitness barbell while maintaining the feel of traditional gravity training. The weight of the fitness barbell can be adjusted via a mobile terminal or touch buttons, making operation simple, quick, and accurate. Different weights can be adjusted to meet different training needs. At the same time, it eliminates the need for multiple sets of dumbbell plates, significantly saving storage space for the fitness barbell and improving the safety factor during use. This is conducive to the promotion of this automatically adjustable home fitness barbell. Attached Figure Description

[0011] Figure 1 This is a top view of the structure of the household fitness barbell of this utility model; Figure 2 This is a schematic diagram of the structure of the gyroscope assembly of this utility model; Figure 3 This is a schematic diagram of the structure of the home fitness barbell control component of this utility model.

[0012] In the diagram: 1. Barbell bar; 2. Gyroscope mounting position; 201. Gyroscope rotor; 3. Drive motor; 4. Bearing bracket; 5. Control circuit board; 6. Lithium battery pack; 7. Display screen; 8. Touch buttons; 9. Charging interface; 10. Grip area; 11. Microprocessor; 12. Wireless communication module; 13. Mobile terminal; 14. Speed ​​sensor; 15. Hall sensor. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-3This invention provides a technical solution for a home fitness barbell with automatic weight adjustment, comprising a barbell bar 1, a gyroscope assembly, and a control assembly. The barbell bar 1 has a hollow cylindrical structure and is made of, but is not limited to, aerospace aluminum alloy. It has a total length of 1200mm, a middle diameter of 50mm, and handle areas 10 at both ends with a diameter of 32mm and an anodized surface, exhibiting good strength and corrosion resistance. The middle section of the barbell bar 1 is a gyroscope mounting position 2, on which the gyroscope assembly is mounted. Both ends of the barbell bar 1 are equipped with... The barbell bar has a grip area 10, which is, but not limited to, a rubber sleeve. A gyroscope assembly is located inside the barbell bar 1, comprising a gyroscope rotor 201, a drive motor 3, a bearing bracket 4, a control circuit board 5, and a lithium battery pack 6. The bearing bracket 4 uses a precision ceramic bearing to ensure stability and low noise during high-speed rotation. A control assembly is mounted on the top surface of the barbell bar 1, including a microprocessor 11, a speed sensor 14, a Hall sensor 15, touch buttons 8, and a display screen 7. The microprocessor 11 is electrically connected to the control circuit board 5. The control buttons 8 include a power button, a weight adjustment button, and a mode selection button; the drive motor 3 drives the gyroscope rotor 201 to rotate at high speed, generating an equivalent weight on the barbell bar 1 through the gyroscopic effect. The gyroscope rotor 201 is made of high-density alloy material, and its overall structure is disc-shaped. The diameter of the gyroscope rotor 201 is 50-80mm and its thickness is 10-20mm. Preferably, the outer diameter of the gyroscope rotor 201 is 75mm, its thickness is 15mm, its weight is approximately 800g, and it has undergone precise balancing. The drive motor 3 and... The microprocessor 11 is electrically integrated; the microprocessor 11 is remotely connected to a mobile terminal 13 via a wireless communication module 12, the mobile terminal 13 being, but not limited to, a mobile phone, tablet, or computer; it should be noted that the display screen 7 is, but not limited to, an LED display screen, which can display information such as the current weight of the automatically adjustable home fitness barbell and the charge level of the lithium battery pack 6; the microprocessor 11 is, but not limited to, a 32-bit ARM Cortex-M4 processor with a main frequency of 168MHz; the wireless communication module 12 supports Bluetooth 5.0 and Wi-Fi connectivity.

[0015] In this embodiment, the control components also include a speed sensor 14 and a Hall sensor 15 mounted on the drive motor 3. Both the speed sensor 14 and the Hall sensor 15 are electrically connected to the microprocessor 11. The drive motor 3 is, but is not limited to, a brushless motor with a speed range of 0-20000 rpm and is equipped with speed feedback to the speed sensor 14 and the Hall sensor 15. Preferably, the drive motor 3 is a brushless DC motor with a rated power of 100W and a maximum speed of 20000 rpm to cooperate with the Hall sensor 15 for speed feedback. The control circuit board 5 is provided with a charging interface 9, which is electrically connected to the lithium battery pack 6 through a charging circuit. The charging interface 9 can be, but is not limited to, a USB interface or a Type-C interface. The control circuit board 5 has an overheat protection circuit and an overcurrent protection circuit connected to the microprocessor 11. It should be noted that the speed sensor 14 can be, but is not limited to, a JY series JY220 type speed sensor. The speed sensor 14 can monitor and provide feedback on the speed of the drive motor 3 in real time to form a closed-loop control. The Hall sensor 15 can be, but is not limited to, a CS-3 type Hall speed sensor.

[0016] This home fitness barbell with automatic weight adjustment generates additional torque resistance when the drive motor 3 drives the gyroscope rotor 201 to rotate at high speed. Due to the gyroscopic effect, the barbell generates additional torque resistance during various movements. The higher the rotation speed, the stronger the gyroscopic effect and the greater the equivalent weight. By precisely controlling the rotation speed of the drive motor 3, the training effect of barbells of different weights can be simulated. The mathematical relationship is: equivalent weight = base weight + K × ω², where K is the gyroscopic coefficient and ω is the gyroscopic rotation speed.

[0017] In summary, this self-adjusting home fitness barbell, based on the equivalent weight adjustment of an electric gyroscope, allows for weight adjustment via a mobile terminal 13 or touch buttons 8. It is simple, quick, and accurately controls the weight to meet different training needs. Furthermore, it significantly saves storage space by eliminating the need for multiple sets of dumbbell plates, and the absence of mechanical parts like dumbbell plates improves safety during use. The mobile terminal 13 can be equipped with a professional app embedded with a microprocessor 11 to control the system and calculate the required rotation speed based on the weight-rotation speed mapping relationship. The weight adjustment range is 5kg-50kg with an accuracy of 0.1kg. It also offers a wealth of functions, including training plans, data analysis, and social sharing. Users can set their target weight via the mobile app or touch buttons 8.

[0018] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0019] The above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be understood that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. In the present utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "joining", "fixing", etc. should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components. Among them, there are various ways of detachable installation, such as by plugging and snapping, or by bolt connection, etc.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A home fitness barbell with automatic weight adjustment, characterized in that: include The barbell bar has a hollow cylindrical structure. A gyroscope assembly is disposed inside the barbell bar, and the gyroscope assembly includes a gyroscope rotor, a drive motor, a bearing bracket, a control circuit board, and a lithium battery pack; A control assembly is mounted on the top surface of the barbell bar. The control assembly includes a microprocessor, a speed sensor, a Hall sensor, touch buttons, and a display screen. The microprocessor is electrically connected to the control circuit board. The drive motor drives the gyroscope rotor to rotate at high speed, so as to generate an equivalent weight on the barbell bar through the gyro effect. The drive motor is electrically connected to the microprocessor. The microprocessor is remotely connected to a mobile terminal through a wireless communication module.

2. The home fitness barbell with automatic weight adjustment according to claim 1, characterized in that: The control component also includes a speed sensor and a Hall sensor mounted on the drive motor, both of which are electrically connected to the microprocessor.

3. The home fitness barbell with automatic weight adjustment according to claim 1, characterized in that: The barbell bar has a gyroscope mounting position in the middle section, where the gyroscope assembly is mounted. Both ends of the barbell bar have grip areas, which are made of rubber.

4. The home fitness barbell with automatic weight adjustment according to claim 1, characterized in that: The control circuit board is equipped with a charging interface, which is electrically connected to the lithium battery pack through a charging circuit.

5. The home fitness barbell with automatic weight adjustment according to claim 1, characterized in that: The gyroscope rotor is made of high-density alloy material, and its overall structure is disc-shaped.

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