Auxiliary force quantitatively adjustable pull-up training device and method

Abstract

The present invention relates to the technical field of pull-up training equipment, specifically a pull-up training device with adjustable auxiliary force quantity and method thereof, comprising a training frame, a power-assisting foot pedal being slidably connected to the training frame, two linear guides being fixedly connected to the training frame for vertically guiding the power-assisting foot pedal for pull-ups, an intelligent all-in-one machine for counting being fixedly connected to one side of the training frame, a rotating seat being fixedly connected to the training frame, and an auxiliary frame being rotatably connected to the rotating seat. The present invention divides the auxiliary force quantity provided by the power-assisting foot pedal to the user into six gears through the transmission between the force-quantifying frame, the threaded rod and the cylinder, thereby facilitating the adjustment of the auxiliary force of the user's pull-up training, and utilizing the vertical movement state of the power-assisting foot pedal to make the user's pull-up posture more standard, thereby improving the data accuracy of converting the user's actual training times into the standard training times.

Description

Technical Field

[0001] The present invention relates to the technical field of pull-up training equipment, and in particular to a pull-up training device with quantitatively adjustable auxiliary force and a method thereof. Background Art

[0002] When practicing pull-ups, you first need to hang vertically, jump up and hold the horizontal bar with your overhand hand, lift your feet off the ground, and use your arm strength to lift your body up, and practice repeatedly. In actual use, traditional pull-up training equipment has an arc in the movement trajectory of the pedals used for power assistance, which will change the user's movement trajectory and make it difficult to maintain a vertical hanging state, resulting in a non-standard pull-up training posture. At the same time, the force of the pedals is difficult to quantify, which reduces the accuracy of the data when converting the user's actual training times into the standard training times. Summary of the Invention

[0003] The purpose of the present invention is to provide a pull-up training device and method with quantitatively adjustable auxiliary force, so as to solve the problem that in actual use of the traditional pull-up training equipment proposed in the above background technology, the movement trajectory of the foot pedal used for assisting has an arc, which will change the user's movement trajectory, making it difficult to maintain a vertical hanging state, resulting in a non-standard pull-up training posture. At the same time, the force of the assist provided by the foot pedal is difficult to quantify, which reduces the data accuracy of converting the user's actual training times into the standard training times.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an auxiliary force quantitatively adjustable pull-up training device includes a training frame, a power-assisting foot pedal is slidably connected to the training frame, two linear guides for guiding the power-assisting foot pedal vertically for pull-ups are fixedly connected to the training frame, one side of the training frame is fixedly connected to an all-in-one machine for recording the number of pull-ups of the user, the support frame is provided with a power-assisting member and a power source that can provide auxiliary force to the power-assisting foot pedal, the power-assisting member includes an extension rod slidably connected to the bottom of the power-assisting foot pedal, the power source provides auxiliary force to the power-assisting foot pedal through the extension rod, and the power-assisting member is provided with an auxiliary force quantitative adjustment member for adjusting the auxiliary force of the power source.

[0005] Preferably, the power-assisting member also includes a rotating seat fixedly connected to the training frame body, an auxiliary frame is rotatably connected to the rotating seat, the auxiliary frame and the extension rod are integrally formed, and the bottom of the power-assisting foot pedal is provided with a docking interface for the extension rod to slide; the auxiliary force quantitative adjustment member includes a tripod integrally formed with the auxiliary frame, two mounting blocks are fixedly connected to one side of the tripod, threaded rods are rotatably connected to the two mounting blocks, a servo motor is fixedly connected to one side of the tripod, the driving end of the servo motor is fixedly connected to the threaded rod, a force quantitative frame is slidably connected to the tripod, and a threaded through hole compatible with the threaded rod is opened through the force quantitative frame; the power source includes two cylinders rotatably connected to both sides of the force quantitative frame, and the cylinders are rotatably connected to the training frame body.

[0006] Preferably, the linear guide includes a fixed plate, a guide rod, a slider, a shock-absorbing spring and a damper, the fixed plate is fixedly connected to one side of the training frame, one end of the guide rod is fixedly connected to the fixed plate, the other end of the guide rod is fixedly connected to the training frame, a guide hole for the guide rod to pass through is opened in the slider, the shock-absorbing spring is plugged into the guide rod, the damper is fixedly connected to the shock-absorbing spring, and one side of the slider is fixedly connected to the power-assisting foot pedal.

[0007] Preferably, the training frame body is fixedly connected to a base frame, the base frame is rotatably connected to two connecting blocks, one end of the cylinder is rotatably connected to the force quantitative frame, and the other end of the cylinder is fixedly connected to the connecting block.

[0008] Preferably, the top of the extension rod is fixedly connected to a wheel seat, an auxiliary pulley is rotatably connected in the wheel seat, the auxiliary pulley is slidably connected to the docking port, and the auxiliary pulley is installed on a side away from the servo motor.

[0009] Preferably, both sides of the training frame are fastened with hanging rod racks, a plurality of fixing bolts are connected with the inner threads of the hanging rod racks, a threaded blind hole adapted for the fixing bolts is provided in the training frame body, a plurality of leakage slots are provided through the hanging rod racks, and grab bars are hung in the leakage slots of the two hanging rod racks, the training frame body includes a short-circuit rack integrally formed therewith, and the intelligent all-in-one machine is fixedly connected to the short-circuit rack.

[0010] A method for quantitatively adjusting the auxiliary force of a pull-up training device comprises the following steps:

[0011] S1. Start by capturing an image of the pull-up area of the user through a camera, find the user's human figure in the image of the pull-up area using a human figure detection algorithm, and determine whether the user is in an initial position with arms straight in the image of the user's human figure;

[0012] S2. Enable the pull-up standard counting service. Based on the collected user image, determine the nose and chin detection points in the head outline using computer vision object detection. Obtain the initial positions of the nose and chin detection points, and perform pull-up standard counting analysis and judgment. The specific judgment method is as follows:

[0013] When at least one of the movement positions of the nose or chin detection points in the head outline is lower than the horizontal bar and the soles of the feet are suspended in the air, it is determined to be a standard pull-up behavior, and the auxiliary force of the pull-up training device is zero;

[0014] If at least one of the movement positions of the nose or chin detection points in the head silhouette is lower than the crossbar and the soles of the feet are in contact with the pedals, it is determined to be a pull-up with auxiliary force;

[0015] S3. The assisting force of the pull-up training device is divided into a plurality of assisting gears, with the assisting force between the plurality of assisting gears increasing in increments. A user-standard pull-up training threshold is set. The user's actual pull-up force is obtained by subtracting the assisting force of the auxiliary gear used from the user's standard pull-up force. If the user's actual pull-up force for multiple pull-ups is greater than the user's standard pull-up force for a single pull-up, it is considered a standard pull-up performance.

[0016] S4. Under the premise that the user has assisted pull-ups, when the number of standard pull-ups exceeds the training threshold, the user will be downgraded to an assistive gear with weaker assistive force. In this way, the assistive gear will be gradually downgraded, that is, the assistive force will be gradually weakened until the user does not need assisted force to do pull-ups.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Taking the servo motor controlling the threaded rod to rotate three times as a benchmark, the displacement area of the force metering frame is regarded as an auxiliary gear, and it is divided into six auxiliary gears according to the length of the threaded rod, with the auxiliary gear where the threaded rod is close to the servo motor as the starting point and the auxiliary gear where the threaded rod is away from the servo motor as the end point. The auxiliary forces of the six auxiliary gears increase from the starting point to the end point. In the initial state, the force metering frame is in the auxiliary gear with the maximum auxiliary force. The difference between the force used when the user's feet are suspended in the air and the force used when the user's feet are always placed on the power-assisted foot pedal to do a pull-up is regarded as the auxiliary force of the auxiliary gear. In this way, the auxiliary force values provided by the six auxiliary gears are obtained and input into the internal storage of the intelligent all-in-one machine. The intelligent all-in-one machine regards the difference between the force value used when the user's feet are always placed on the power-assisted foot pedal to do a pull-up and the auxiliary force value of the auxiliary gear as the force data value of the user's actual pull-up. When the force data value of the user's actual multiple pull-ups is ≥ the force used for the standard pull-ups, it is converted into one standard pull-up number, and the user's actual number of pull-ups is converted into one standard pull-up number. The number of training sessions and the standard number of pull-ups converted are displayed on the smart all-in-one device, and the standard pull-up threshold is set using the smart all-in-one device. The smart all-in-one device uses facial recognition to identify different users and record their training data. Users can apply force by stepping on the power-assisted foot pedal and grasping the grip bar. The activation of the cylinder provides auxiliary force to the power-assisted foot pedal through the auxiliary frame and extension rod. At the same time, the user uses the linear guide to perform pull-ups in a vertical motion state. When the user's standard number of pull-ups exceeds the threshold, the smart all-in-one device transmits a command to the servo motor, which drives the threaded rod to rotate three times, causing the force metering frame to slide on the threaded rod to the next weaker assisting gear, maintaining the user's training intensity. Through the transmission between the force metering frame, threaded rod, and cylinder, the assisting force provided by the power-assisted foot pedal is quantitatively divided into six gears, facilitating the adjustment of the user's pull-up force. The vertical movement of the power-assisted foot pedal ensures a more standard pull-up posture, improving the accuracy of the data used to convert the user's actual training sessions into the required number of training sessions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic diagram of the structure of the auxiliary frame in the present invention;

[0021] Figure 3 Schematic diagram of the structure of the linear guide in the present invention;

[0022] Figure 4 Schematic diagram of the structure of the hanging rod frame in the present invention;

[0023] Figure 5 This is a system block diagram of the present invention.

[0024] In the picture: 1. Training frame;

[0025] 2. Linear guide; 201. Fixed plate; 202. Guide rod; 203. Slider; 204. Shock-absorbing spring; 205. Damper;

[0026] 3. Hanging rod rack; 4. Hand grab bar; 5. Power pedal; 6. Auxiliary frame; 7. Intelligent all-in-one machine; 8. Short-circuit frame; 9. Servo motor; 10. Mounting block; 11. Threaded rod; 12. Cylinder; 13. Base frame; 14. Wheel seat; 15. Auxiliary pulley; 16. Extension rod; 17. Tripod; 18. Force metering frame; 19. Rotating seat; 20. Fixing bolts. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5 , an embodiment provided by the present invention:

[0029] An auxiliary force quantitatively adjustable pull-up training device includes a training frame 1, a power-assisting foot pedal 5 is slidably connected to the training frame 1, two linear guides 2 for guiding the power-assisting foot pedal 5 vertically for pull-ups are fixedly connected to the training frame 1, an intelligent all-in-one machine 7 for counting is fixedly connected to one side of the training frame 1, a rotating seat 19 is fixedly connected to the training frame 1, an auxiliary frame 6 is rotatably connected to the rotating seat 19, the auxiliary frame 6 includes an extension rod 16 integrally formed therewith, a docking port for sliding the extension rod 16 is provided at the bottom of the power-assisting foot pedal 5, the auxiliary frame 6 includes a tripod 17 integrally formed therewith, two mounting blocks 10 are fixedly connected to one side of the tripod 17, a threaded rod 11 is rotatably connected to the two mounting blocks 10, and the tripod 17 is fixedly connected to one side of the tripod 17. A servo motor 9 is fixedly connected to one side, and the driving end of the servo motor 9 is fixedly connected to the threaded rod 11. A force dosing frame 18 is slidably connected to the tripod 17. A threaded through hole that is compatible with the threaded rod 11 is opened through the force dosing frame 18. The cylinder 12 is rotatably connected to both sides of the force dosing frame 18. The cylinder 12 is rotatably connected to the training frame 1. Through the transmission between the force dosing frame 18, the threaded rod 11 and the cylinder 12, the auxiliary force provided by the power-assisted foot pedal 5 to the user is quantitatively divided into six gears, which is convenient for adjusting the auxiliary force of the user's pull-up training, and the vertical movement state of the power-assisted foot pedal 5 is used to make the user's pull-up posture more standard, thereby improving the data accuracy of converting the user's actual training times into the standard training times.

[0030] See also Figure 3 In this embodiment, the linear guide 2 includes a fixed plate 201, a guide rod 202, a slider 203, a shock-absorbing spring 204 and a damper 205. The fixed plate 201 is fixedly connected to one side of the training frame 1, one end of the guide rod 202 is fixedly connected to the fixed plate 201, and the other end of the guide rod 202 is fixedly connected to the training frame 1. A guide hole for the guide rod 202 to pass through is opened in the slider 203, the shock-absorbing spring 204 is plugged into the guide rod 202, and the damper 205 is fixedly connected to the shock-absorbing spring 204. One side of the slider 203 is fixedly connected to the power-assisting foot pedal 5, and the slider 203 moves along the guide direction of the guide rod 202, so that the power-assisting foot pedal 5 can move vertically up and down;

[0031] It should be noted that the training frame 1 is fixedly connected to a bottom frame 13, and two connecting blocks are rotatably connected to the bottom frame 13. One end of the cylinder 12 is rotatably connected to the force quantitative frame 18, and the other end of the cylinder 12 is fixedly connected to the connecting block. The cylinder 12 is rotatably connected to the training frame 1 through the setting of the bottom frame 13.

[0032] See also Figure 1-2In this embodiment, the top of the extension rod 16 is fixedly connected to the wheel seat 14, and the auxiliary pulley 15 is rotatably connected inside the wheel seat 14. The auxiliary pulley 15 is slidably connected to the docking interface. The auxiliary pulley 15 is installed on the side away from the servo motor 9. The setting of the auxiliary pulley 15 reduces the sliding friction between the extension rod 16 and the docking interface.

[0033] It should be noted that both sides of the training frame 1 are fastened with hanging rod frames 3, and the hanging rod frames 3 are internally threaded with multiple fixing bolts 20. Threaded blind holes compatible with the fixing bolts 20 are provided in the training frame 1, and multiple leakage grooves are opened through the hanging rod frames 3. Hand grab bars 4 are hung in the leakage grooves of the two hanging rod frames 3. The training frame 1 includes a short-circuit frame 8 integrally formed with it, and the intelligent all-in-one machine 7 is fixedly connected to the short-circuit frame 8. By hanging the hand grab bar 4 in the leakage groove of the hanging rod frame 3, it is convenient for users to grab and apply force.

[0034] A method for quantitatively adjusting the auxiliary force of a pull-up training device comprises the following steps:

[0035] S1. Start by capturing an image of the pull-up area of the user through a camera, find the user's human figure in the image of the pull-up area using a human figure detection algorithm, and determine whether the user is in an initial position with arms straight in the image of the user's human figure;

[0036] S2. Enable the pull-up standard counting service. Based on the collected user image, determine the nose and chin detection points in the head outline using computer vision object detection. Obtain the initial positions of the nose and chin detection points, and perform pull-up standard counting analysis and judgment. The specific judgment method is as follows:

[0037] When at least one of the movement positions of the nose or chin detection points in the head outline is lower than the horizontal bar and the soles of the feet are suspended in the air, it is determined to be a standard pull-up behavior, and the auxiliary force of the pull-up training device is zero;

[0038] If at least one of the movement positions of the nose or chin detection points in the head silhouette is lower than the crossbar and the soles of the feet are in contact with the pedals, it is determined to be a pull-up with auxiliary force;

[0039] The user's assisted pull-up performance includes the following steps:

[0040] S21. The face recognition function of the intelligent all-in-one machine 7 identifies different users and records their training data respectively. The user can step on the power-assisting foot pedal 5 and apply force by holding the gripping rod 4. The activation of the cylinder 12 provides auxiliary force to the power-assisting foot pedal 5 through the auxiliary frame 6 and the extension rod 16. At the same time, the user uses the guidance of the linear guide 2 to perform pull-up training in a vertical motion state.

[0041] S3. The assisting force of the pull-up training device is divided into a plurality of assisting gears, with the assisting force between the plurality of assisting gears increasing in increments. A user-standard pull-up training threshold is set. The user's actual pull-up force is obtained by subtracting the assisting force of the auxiliary gear used from the user's standard pull-up force. If the user's actual pull-up force for multiple pull-ups is greater than the user's standard pull-up force for a single pull-up, it is considered a standard pull-up performance.

[0042] The steps of dividing the auxiliary force of the pull-up training device into several auxiliary gears are as follows:

[0043] S31. Taking three revolutions of the threaded rod 11 controlled by the servo motor 9 as a benchmark, the displacement area of the force metering frame 18 is regarded as one auxiliary gear position. The threaded rod 11 is divided into six auxiliary gear positions according to its length. The auxiliary gear position where the threaded rod 11 is close to the servo motor 9 is the starting point, and the auxiliary gear position where the threaded rod 11 is far from the servo motor 9 is the end point. The auxiliary forces of the six auxiliary gear positions increase from the starting point to the end point.

[0044] S32. In the initial state, the force metering frame 18 is in the auxiliary gear with the maximum auxiliary force. The difference between the force used when the user does a standard pull-up with his feet suspended in the air and the force used when the user does a pull-up with his feet always placed on the power-assisted foot pedal 5 is regarded as the auxiliary force of the auxiliary gear. In this way, the auxiliary force values provided by the six auxiliary gears are obtained and input into the internal storage of the intelligent all-in-one machine 7. The intelligent all-in-one machine 7 regards the difference between the force value used when the user does a pull-up with his feet always placed on the power-assisted foot pedal 5 and the auxiliary force value of the auxiliary gear as the force data value of the user's actual pull-up. When the force data value of the user's actual multiple pull-ups is greater than or equal to the force used for the standard pull-ups, it is converted into the number of standard pull-ups. The actual number of pull-ups training performed by the user and the number of pull-ups converted into the standard number are both displayed on the intelligent all-in-one machine 7, and the intelligent all-in-one machine 7 is used to set the threshold value of the standard number of pull-ups.

[0045] S4. When the user performs pull-ups with assistance and the number of pull-ups exceeds the training threshold, the user is shifted down to a lower assist level. The assist level is gradually shifted down, i.e., the assist level is gradually reduced, until the user can perform pull-ups without assistance.

[0046] S41. When the user's standard number of pull-ups exceeds the threshold, the intelligent all-in-one machine 7 will transmit instructions to the servo motor 9, and the servo motor 9 will drive the threaded rod 11 to rotate three circles, so that the force metering frame 18 slides on the threaded rod 11 to the next auxiliary gear with weaker auxiliary force. In this way, the auxiliary force for the user is gradually reduced to maintain the user's training intensity.

[0047] It should be noted that the user can manually set the standard pull-up number threshold through the intelligent all-in-one machine 7 and choose from the standard pull-up number between 20-100.

[0048] It should be noted that the intelligent all-in-one machine 7 is electrically connected to the servo motor 9, and cameras are installed on the top and bottom of the intelligent all-in-one machine 7. A face recognition module, a database module, a controller, a data processor module and a display screen are installed therein, and the structures are the same as those in the prior art. The controller is electrically connected to the servo motor 9. Through the setting of the face recognition module, it can be used to identify different users and retrieve the pull-up training data of the identified users. The intelligent all-in-one machine 7 sends an instruction to control the servo motor 9 to start and rotate the threaded rod 11. The rotation of the threaded rod 11 is used to adjust the force quantitative frame 18 to the auxiliary gear used by the user, which is convenient for the user to do pull-up training. At the same time, the auxiliary gear used can also be directly adjusted through the intelligent all-in-one machine 7, which can be used for pull-up tests on students in schools.

[0049] Working principle: Taking the servo motor 9 controlling the threaded rod 11 to rotate three times as a benchmark, the displacement area of the force metering frame 18 is regarded as an auxiliary gear, and the threaded rod 11 is divided into six auxiliary gears according to its length, with the auxiliary gear where the threaded rod 11 is close to the servo motor 9 as the starting point, and the auxiliary gear where the threaded rod 11 is away from the servo motor 9 as the end point. The auxiliary force of the six auxiliary gears increases from the starting point to the end point; in the initial state, the force metering frame 18 is in the auxiliary gear with the largest auxiliary force, and the difference between the force used to do a standard pull-up with the user's feet suspended in the air and the force used to do a pull-up with the user's feet always placed on the power-assisted foot pedal 5 is regarded as the auxiliary force of the auxiliary gear, so as to obtain the auxiliary force values provided by the six auxiliary gears and input them into the internal storage of the intelligent all-in-one machine 7. The intelligent all-in-one machine 7 regards the difference between the force value used to do a pull-up with the user's feet always placed on the power-assisted foot pedal 5 and the auxiliary force value of the auxiliary gear as the force data value of the user's actual pull-up. When the force data value of the user's actual multiple pull-ups is ≥ the force used for standard pull-ups, it is converted into a standard number of pull-ups. The user's actual number of pull-ups training and the converted standard number of pull-ups are both displayed on the smart all-in-one machine 7, and the smart all-in-one machine 7 is used to set the standard pull-up number threshold. The face recognition function of the smart all-in-one machine 7 identifies different users and records their training data respectively. The user can apply force by stepping on the power-assisting foot pedal 5 and holding the gripping rod 4 with his hands. The activation of the cylinder 12 provides auxiliary force to the power-assisting foot pedal 5 through the auxiliary frame 6 and the extension rod 16. At the same time, the user uses the linear guide 2 to guide the pull-up training in a vertical motion state; when the user's standard number of pull-ups exceeds the threshold, the smart all-in-one machine 7 will transmit an instruction to the servo motor 9, and the servo motor 9 will drive the threaded rod 11 to rotate three circles, so that the force quantitative frame 18 slides on the threaded rod 11 to the next auxiliary gear with weaker auxiliary force, so as to gradually reduce the auxiliary force for the user and maintain the user's training intensity.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pull-up training device with adjustable auxiliary force, characterized in that: The training frame (1) comprises a training frame (1), wherein a power-assisting foot pedal (5) is slidably connected to the training frame (1), and two linear guides (2) for guiding the power-assisting foot pedal (5) vertically in pull-up are fixedly connected to the training frame (1), and an intelligent all-in-one machine (7) for recording the number of pull-ups performed by the user is fixedly connected to one side of the training frame (1), and the training frame (1) is provided with a power-assisting member and a power source capable of providing auxiliary force for the power-assisting foot pedal (5), the power-assisting member comprises an extension rod (16) slidably connected to the bottom of the power-assisting foot pedal (5), and the power source provides auxiliary force to the power-assisting foot pedal (5) through the extension rod (16), and an auxiliary force quantitative adjustment member for adjusting the auxiliary force of the power source is provided on the power-assisting member; the auxiliary force quantitative adjustment member comprises a tripod (17) integrally formed with the auxiliary frame (6), and one side of the tripod (17) is fixedly connected to two mounting blocks (10), and the two mounting blocks (10) are rotatably connected to threaded rods (11), and the tripod (17) A servo motor (9) is fixedly connected to one side of the tripod (17), a driving end of the servo motor (9) is fixedly connected to the threaded rod (11), a force quantitative frame (18) is slidably connected to the tripod (17), and a threaded through hole adapted to the threaded rod (11) is provided through the force quantitative frame (18); the linear guide (2) comprises a fixed plate (201), a guide rod (202), a slider (203), a shock absorbing spring (204) and a damper (205), the fixed plate (201) is fixedly connected to the The guide rod (202) is connected to one side of the training frame (1), one end of the guide rod (202) is fixedly connected to the fixed plate (201), the other end of the guide rod (202) is fixedly connected to the training frame (1), a guide hole for the guide rod (202) to pass through is provided in the slider (203), the shock-absorbing spring (204) is plugged into the guide rod (202), the damper (205) is fixedly connected to the shock-absorbing spring (204), and one side of the slider (203) is fixedly connected to the power-assisting pedal (5).

2. The pull-up training device with adjustable auxiliary force according to claim 1, characterized in that: The power-assisting member also includes a rotating seat (19) fixedly connected to the training frame (1), an auxiliary frame (6) is rotatably connected to the rotating seat (19), the auxiliary frame (6) and the extension rod (16) are integrally formed, and a docking port for the extension rod (16) to slide is provided at the bottom of the power-assisting foot pedal (5).

3. The pull-up training device with adjustable auxiliary force according to claim 1, characterized in that: The power source comprises two cylinders (12) rotatably connected to both sides of a force quantitative frame (18), and the cylinders (12) are rotatably connected to the training frame (1).

4. The pull-up training device with adjustable auxiliary force according to claim 3, characterized in that: The training frame (1) is fixedly connected to a base frame (13), and two connecting blocks are rotatably connected to the base frame (13). One end of the cylinder (12) is rotatably connected to the force quantitative frame (18), and the other end of the cylinder (12) is fixedly connected to the connecting block.

5. The pull-up training device with adjustable auxiliary force according to claim 1, characterized in that: The top of the extension rod (16) is fixedly connected to a wheel seat (14), and an auxiliary pulley (15) is rotatably connected inside the wheel seat (14). The auxiliary pulley (15) is slidably connected to the docking port, and the auxiliary pulley (15) is installed on a side away from the servo motor (9).

6. The pull-up training device with adjustable auxiliary force according to claim 1, characterized in that: Both sides of the training frame (1) are fastened with hanging rod frames (3), and the hanging rod frames (3) are internally threaded with a plurality of fixing bolts (20). The training frame (1) is provided with threaded blind holes that are compatible with the fixing bolts (20), and the hanging rod frames (3) are provided with a plurality of leakage slots, and the leakage slots of the two hanging rod frames (3) are hung with hand grips (4). The training frame (1) includes a short-circuit frame (8) formed integrally therewith, and the intelligent all-in-one machine (7) is fixedly connected to the short-circuit frame (8).

7. The method for quantitatively adjusting the auxiliary force of a pull-up training device with quantitatively adjustable auxiliary force according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Start by capturing an image of the pull-up area of the user through a camera, find the user's human figure in the image of the pull-up area using a human figure detection algorithm, and determine whether the user is in an initial position with arms straight in the image of the user's human figure; S2. Enable the pull-up standard counting service. Based on the collected user image, determine the nose and chin detection points in the head outline using computer vision object detection. Obtain the initial positions of the nose and chin detection points, and perform pull-up standard counting analysis and judgment. The specific judgment method is as follows: When at least one of the movement positions of the nose or chin detection points in the head outline is lower than the horizontal bar and the soles of the feet are suspended in the air, it is determined to be a standard pull-up behavior, and the auxiliary force of the pull-up training device is zero; If at least one of the movement positions of the nose or chin detection points in the head silhouette is lower than the crossbar and the soles of the feet are in contact with the pedals, it is determined to be a pull-up with auxiliary force; S3. The assisting force of the pull-up training device is divided into a plurality of assisting gears, with the assisting force between the plurality of assisting gears increasing in increments. A user-standard pull-up training threshold is set. The user's actual pull-up force is obtained by subtracting the assisting force of the auxiliary gear used from the user's standard pull-up force. If the user's actual pull-up force for multiple pull-ups is greater than the user's standard pull-up force for a single pull-up, it is considered a standard pull-up performance. S4. Under the premise that the user has assisted pull-ups, when the number of standard pull-ups exceeds the training threshold, the user will be downgraded to an assistive gear with weaker assistive force. In this way, the assistive gear will be gradually downgraded, that is, the assistive force will be gradually weakened until the user does not need assisted force to do pull-ups.

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