Upper limb flattening protractor

Abstract

The invention relates to the technical field of medical instruments, in particular to an upper limb flattening protractor which comprises a straight ruler for finger wall climbing training and a semicircular arc ruler for upper limb flattening training. The arc rulers and the rulers are staggered; the circular arc ruler and the straight ruler are marked with scales, and the center point of the circular arc ruler is rotatably matched with a pointer. According to the invention, the specific range of activity is displayed through the indication effect of the beacon, and the intuitive mode helps a patient to understand the body limit of the patient and gradually enlarge the range of activity of joints. By using clear scales and an easy-to-understand operation method, even non-professionals can independently complete basic self-evaluation and training.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to an upper limb flattening protractor. Background Art

[0002] The upper limb flattening goniometer is a professional tool used to measure the range of motion (ROM) of the upper limb joints of the human body, and is widely used in the fields of physical therapy, rehabilitation medicine, etc. It can accurately measure the angle changes of the upper limb motion joints, helping medical professionals evaluate the patient's joint flexibility, muscle strength and treatment effect.

[0003] In the prior art, there are some disadvantages of the method of having patients do flattening training on the wall. Specifically, such method usually does not provide a clear angle reference, resulting in the patient being unable to accurately know the angle to which their upper limbs are flattened. This ambiguity makes it difficult to quantify and evaluate the training effect.

[0004] In summary, how to solve the problem in the prior art that when doing flattening training on the wall, patients cannot accurately know their flattening angles, making it difficult to quantify and evaluate the training effect has become a difficult problem that needs to be solved urgently in this field. Therefore, it is necessary to propose an upper limb flattening protractor. Summary of the invention

[0005] To solve the above problems, the present invention provides an upper limb flattening protractor, which displays the specific range of motion through the indication of a pointer. This intuitive method helps patients understand their own physical limits and gradually expand the range of joint motion. With clear scales and easy-to-understand operation methods, even non-professionals can independently complete basic self-assessment and training.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: an upper limb flattening protractor, comprising a straight ruler for finger wall climbing training and a semicircular arc ruler for upper limb flattening training; the arc ruler and the straight ruler are staggeredly installed;

[0007] Both the arc ruler and the straight ruler are marked with scales, and the arc ruler's center point is rotated with a pointer.

[0008] The technical principles of the above scheme are as follows:

[0009] Since the center point of the arc ruler rotates with the pointer, the pointer can rotate with the upper limbs, thereby indicating the angle of the upper limbs when they are stretched. When the patient is doing upper limb stretching training, he or she aligns a joint point of the upper limb with the center point of the arc ruler, and then stretches the upper limb so that the end of the upper limb points to a scale on the arc ruler. At this time, the pointer will indicate the angle of the upper limb. When the patient is doing finger wall climbing training, he or she places the finger at the starting position of the ruler, and then moves the finger up along the ruler until the predetermined training goal is reached. At this time, the scale on the ruler is read to record the distance the finger climbs the wall.

[0010] The above scheme has the following beneficial effects:

[0011] 1. The present invention uses the pointing function of the pointer. When patients perform upper limb flattening training, they will try to stretch their arms as far as possible along the direction of the arc ruler. At this time, the pointer will rotate with the movement of the arm to display the specific range of motion. This intuitive method helps patients understand their own physical limits and gradually expand the range of joint motion.

[0012] 2. The present invention is applied to finger wall climbing training through a ruler. Patients can use the ruler as a guide to slowly climb up the wall while paying attention to maintaining the correct hand posture. The scale on the ruler helps them track the height of the finger climbing, encouraging gradual increase in height to strengthen the shoulder muscle strength.

[0013] 3. The present invention enables even non-professionals to independently complete basic self-assessment and training through clear scales and easy-to-understand operating methods.

[0014] Furthermore, baffles are symmetrically fixedly connected on both sides of the bottom of the arc ruler.

[0015] Beneficial effect: The baffle design can provide a limit for the pointer to prevent the pointer from exceeding the scale range of the arc ruler when moving.

[0016] Furthermore, a handle is fixedly connected to a side of the pointing mark away from the arc ruler.

[0017] Beneficial effect: By holding the handle, the rotation of the pointer can be controlled more stably, so that the angle of the upper limb extension can be read and recorded more accurately.

[0018] Furthermore, when the pointer rotates to contact the baffle, its pointing scale is the starting scale.

[0019] Beneficial effect: By marking the starting scale at the point where the pointer contacts the baffle, the trainee does not need to perform complicated calibration or adjustment before each training. The trainee only needs to ensure that the pointer contacts the baffle to automatically align with the starting scale, which can effectively simplify the operation process and improve training efficiency.

[0020] Furthermore, it also includes an adjustment component for adjusting the position of the circular arc ruler and a training system for assisting training;

[0021] The adjustment component includes a base plate, a controller and a first telescopic member, wherein the controller is used to control the first telescopic member to extend and retract; the first telescopic member is rotationally matched with the base plate, and the output shaft of the first telescopic member is fixedly connected to the center point of the arc ruler away from the pointing mark.

[0022] A rotating assembly for driving the first telescopic member to rotate is also provided on the bottom plate.

[0023] Beneficial effect: the first telescopic member is driven to rotate by the rotating component. Since the output shaft of the first telescopic member is fixedly connected to the center point of the circular arc ruler, the spacing of the circular arc ruler can be adjusted by controlling the telescopic length of the first telescopic member. By utilizing this adjustable telescopic mechanism, the training difficulty of different trainees can be met, and the telescopic distance of the first telescopic member can be collected to obtain the angle between the current trainee's arm and the circular arc ruler. It can also be adjusted for different trainees to adapt to rehabilitation training of different body shapes or stages.

[0024] Furthermore, the rotating assembly includes a second telescopic member, a gear and a rack, and the controller is used to control the second telescopic member to extend and retract; the second telescopic member is fixedly connected to the base plate, the output shaft of the second telescopic member is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the bottom of the rack; a limiting assembly is provided on the base plate to provide stability for the rack movement.

[0025] The gear and the rack are meshed with each other, and the gear is coaxially fixedly connected with a rotating rod; a rotating plate is fixedly connected to the bottom plate, and the end of the rotating rod away from the gear passes through the rotating plate and is fixedly connected to the first telescopic member; a ruler is fixedly connected to the top of the rotating plate.

[0026] Beneficial effects: The connecting plate is driven to move by the second telescopic member. Since the connecting plate is fixedly connected to the bottom of the rack, and the rack is meshed with the gear, the movement of the connecting plate can drive the rack to move, and the movement of the rack drives the gear to rotate. Since the gear is coaxially fixedly connected to the rotating rod, and the other end of the rotating rod is fixedly connected to the first telescopic member, the rotating rod can be driven to rotate by the rotation of the gear, and the rotating rod drives the first telescopic member to rotate. Since the output shaft of the first telescopic member is fixedly connected to the center point of the circular arc ruler, the circular arc ruler can be driven to rotate around its center point by rotating the first telescopic member. When the circular arc ruler rotates with its arc surface facing downward, the trainee can perform flattening training when the upper limbs are swung down. In addition, since the ruler is fixedly connected to the top of the rotating plate, when the circular arc ruler rotates to the bottom of the ruler, the ruler can be used for wall climbing training, and in this way, a variety of training effects can be met.

[0027] Furthermore, the limit assembly includes a limit plate, which has a sliding groove along its length direction; a slider is fixedly connected to the side of the rack away from the gear, and the slider is located in the sliding groove and slides vertically; the side of the limit plate away from the sliding groove is fixedly connected to the bottom plate, and the bottom plate is also fixedly connected to an outer shell, and the gear, rack and limit plate are all located inside the outer shell.

[0028] Beneficial effect: Since the limit plate has a slide groove, a slider is slidably matched in the slide groove, and the slider is fixedly connected to the rack, the limit plate can provide a limit for the rack, making the movement path of the rack more stable. It can further reduce deviation or shaking, thereby improving the accuracy of the transmission system.

[0029] Furthermore, a contact sensor is fixedly connected to the inner wall of the slide groove; the controller is used to receive and store the contact signal sent by the contact sensor, and analyze the upper limb training status of the trainee based on the contact signal.

[0030] Beneficial effects: The contact sensor determines whether the rack is moving, thereby determining whether the trainee is performing swing or wall climbing training. Based on the precise motion data provided by the contact sensor, the training system can provide each patient with a personalized training plan and dynamically adjust the training intensity and angle according to actual conditions.

[0031] Furthermore, an inclination sensor is provided at the rotational cooperation position of the pointer and the arc ruler, and the controller is used to receive and store the angle signal sent by the inclination sensor, and analyze the angle of the trainee's upper limb flattening training based on the angle signal.

[0032] Beneficial effects: The inclinometer can detect and record the angle change of the pointer relative to the arc ruler, so that the trainer can more accurately understand the angle change during the training process, so as to make more precise adjustments and controls. And based on the real-time data provided by the inclinometer, the training system can provide personalized training suggestions for each patient.

[0033] Furthermore, the training system includes the following modules:

[0034] The data acquisition module is used to collect the contact signal of the rack and the angle signal of the pointer.

[0035] The data analysis module is used to analyze the current training status of the trainee according to the contact signal and the angle signal and obtain the trainee's motion data.

[0036] The intelligent control module is used to control the first telescopic member and the second telescopic member to extend and retract, and to control the rotation and movement of the circular arc ruler through the first telescopic member and the second telescopic member; and to adjust the training frequency and training difficulty based on the motion data.

[0037] The interactive module is used to provide an interactive interface and language broadcast, and to give prompts based on the current training frequency and training difficulty.

[0038] Beneficial effects: Through the collaborative work of various modules, the training system can provide trainees with a comprehensive and personalized training environment. It not only helps trainees to quickly recover their skills, but also stimulates their interest and motivation in training, making them more actively participate in training. In addition, intelligent control can reduce human intervention and improve the automation and intelligence level of the training process. At the same time, through real-time monitoring and analysis of training data, the training system can promptly discover and correct errors or deficiencies in training to ensure the safety and effectiveness of the training process.

[0039] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is an axonometric view of the upper limb flattening protractor of the present invention.

[0041] Figure 2 It is an axonometric view of the adjustment assembly in the upper limb flattening protractor of the present invention.

[0042] Figure 3 The figure is a schematic diagram of the installation of the housing of the upper limb flattening protractor of the present invention.

[0043] Figure 4 It is a structural block diagram of the training system of the upper limb flattening protractor of the present invention.

[0044] The figure marks in the drawings of the specification include: 1. ruler; 2. arc ruler; 3. pointer; 4. baffle; 5. handle; 6. bottom plate; 7. first electric push rod; 8. second electric push rod; 9. gear; 10. rack; 11. connecting plate; 12. rotating rod; 13. rotating plate; 14. limit plate; 15. outer shell. DETAILED DESCRIPTION

[0045] The following is further described in detail through specific implementation methods:

[0046] Embodiment 1:

[0047] As attached Figure 1 As shown: an upper limb flattening protractor, comprising a ruler 1 for finger wall climbing training and a semicircular arc ruler 2 for upper limb flattening training; the arc ruler 2 and the ruler 1 are staggeredly installed.

[0048] The arc ruler 2 and the straight ruler 1 are both marked with scales, and the center point of the arc ruler 2 is rotated with a pointer 3.

[0049] Baffles 4 are symmetrically formed on both sides of the bottom of the arc ruler 2. The design of the baffles 4 can provide a limit for the pointer 3 to prevent the pointer 3 from exceeding the scale range of the arc ruler 2 when moving.

[0050] A handle 5 is fixedly bonded to the side of the pointer 3 away from the arc ruler 2. By holding the handle 5, the rotation of the pointer 3 can be more stably controlled, so as to more accurately read and record the angle of the upper limb flattening.

[0051] When the pointer 3 rotates to contact the baffle 4, its pointing scale is the starting scale. By marking the starting scale at the point where the pointer 3 contacts the baffle 4, the trainee does not need to perform complicated calibration or adjustment work before each training. He only needs to ensure that the pointer 3 contacts the baffle 4 to automatically align with the starting scale, which can effectively simplify the operation process and improve the training efficiency.

[0052] The specific implementation process is as follows:

[0053] Since the center point of the arc ruler 2 rotates in coordination with the pointer 3, the pointer 3 can rotate as the upper limbs are stretched, thereby indicating the angle of the upper limbs when stretched. When the patient is doing upper limb stretching training, he or she aligns a joint point of the upper limb (such as the shoulder joint) with the center point of the arc ruler 2, and then stretches the upper limb so that the end of the upper limb (such as the wrist) points to a certain scale on the arc ruler 2. At this time, the pointer 3 will indicate the angle of the upper limb. When the patient is doing finger wall climbing training, he or she places the finger at the starting position of the ruler 1, and then moves the finger upward along the ruler 1 until the predetermined training goal is reached. At this time, the scale on the ruler 1 is read to record the distance the finger climbs the wall.

[0054] With the guidance of the pointer 3, when patients perform upper limb flattening training, they will try to stretch their arms as far as possible along the direction of the arc ruler 2. At this time, the pointer 3 will rotate with the movement of the arm to show the specific range of motion. This intuitive method helps patients understand their physical limits and gradually expand the range of joint motion.

[0055] By applying Ruler 1 to finger wall climbing training, patients can use Ruler 1 as a guide to slowly climb up the wall while paying attention to maintaining correct hand posture. The scale on Ruler 1 helps them track the height of their fingers rising, encouraging gradual increases in height to strengthen shoulder muscles. The clear scale and easy-to-understand operation method enable even non-professionals to complete basic self-assessment and training independently.

[0056] Embodiment 2:

[0057] As attached Figure 1-Figure 3As shown, the difference from the above embodiment is that the present invention further provides an adjustment component for adjusting the position of the circular arc ruler 2 and a training system for assisting training.

[0058] The adjustment component includes a base plate 6, a controller and a first telescopic part. In this embodiment, the first telescopic part is a first electric push rod 7, and the controller is used to control the first electric push rod 7 to extend and retract; the first electric push rod 7 is rotatably matched with the base plate 6, and the output shaft of the first electric push rod 7 is fixedly connected to the center point of one side of the circular arc ruler 2.

[0059] The bottom plate 6 is also provided with a rotating assembly for driving the first electric push rod 7 to rotate.

[0060] Combination Figure 2 As shown, the rotating assembly includes a second telescopic member, a gear 9 and a rack 10. In this embodiment, the second telescopic member is a second electric push rod 8, and the controller is used to control the second electric push rod 8 to extend and retract; the second electric push rod 8 is screw-fixedly connected to the base plate 6, and the output shaft of the second electric push rod 8 is screw-fixedly connected to a connecting plate 11, and the connecting plate 11 is screw-fixedly connected to the bottom of the rack 10; a limiting assembly is provided on the base plate 6 for providing stability for the movement of the rack 10.

[0061] The gear 9 and the rack 10 are meshed with each other, and the gear 9 is coaxially fixed with a rotating rod 12; a rotating plate 13 is screwed fixedly connected to the bottom plate 6, and the right end of the rotating rod 12 passes through the rotating plate 13 and is screwed fixedly connected to the left side of the first electric push rod 7; the ruler 1 is screwed fixedly connected to the top of the rotating plate 13.

[0062] The limiting assembly includes a limiting plate 14, which has a sliding groove along its length direction; a slider is integrally formed on the back side of the rack 10, and the slider is located in the sliding groove for vertical sliding cooperation; the back side of the limiting plate 14 is fixedly connected to the base plate 6 with screws, and the base plate 6 is also fixedly connected with a shell 15 with screws, and the gear 9, the rack 10 and the limiting plate 14 are all located inside the shell 15.

[0063] The specific implementation process is as follows:

[0064] Since the limit plate 14 has a slide groove, a slider is slidably fitted in the slide groove, and the slider is integrally formed with the rack 10, the limit plate 14 can provide a limit for the rack 10, making the motion path of the rack 10 more stable, further reducing deviation or shaking, thereby improving the accuracy of the transmission system.

[0065] The second electric push rod 8 drives the connecting plate 11 to move. Since the connecting plate 11 is fixedly connected to the bottom of the rack 10 by screws, the rack 10 is meshed with the gear 9; therefore, the rack 10 can be moved by the movement of the connecting plate 11, and the gear 9 is rotated by the movement of the rack 10. Since the gear 9 is coaxially fixedly engaged with the rotating rod 12, and the other end of the rotating rod 12 is fixedly connected to the first electric push rod 7 by screws, the rotating rod 12 can be rotated by the rotation of the gear 9, and the rotating rod 12 drives the first electric push rod 7 to rotate.

[0066] Since the output shaft of the first electric push rod 7 is fixedly connected to the center point of the arc ruler 2, the arc ruler 2 can be driven to rotate around its center point by rotating the first electric push rod 7. When the arc ruler 2 rotates with its arc surface facing downward, the trainee can perform flattening training when the upper limbs are swung down. In addition, since the ruler 1 is screwed and fixedly connected to the top of the rotating plate 13, when the arc ruler 2 rotates to the bottom of the ruler 1, the ruler 1 is displayed, and the ruler 1 can be used for wall climbing training, thereby achieving a variety of training effects.

[0067] The first electric push rod 7 is driven to rotate by the gear 9 and the rack 10. Since the output shaft of the first electric push rod 7 is fixedly connected to the center point of the arc ruler 2, the distance between the arc ruler 2 and the wall can be adjusted by controlling the telescopic length of the first electric push rod 7. In this embodiment, a plurality of telescopic adjustment rods are used on the arc ruler 2 to connect with the wall to increase the stability of the movement of the arc ruler 2. For tile-like walls, a vacuum suction cup is used to connect with the wall, and for non-tile-like walls, an adhesive connection is used. By using this adjustable telescopic mechanism, the training difficulty of different trainees can be met, and the telescopic distance of the first electric push rod 7 can be collected to obtain the angle between the current trainee's arm and the arc ruler 2. It can be adjusted for different trainees and adapted to rehabilitation training of different body shapes or different stages.

[0068] Embodiment 3:

[0069] The difference from the above embodiment is that a contact sensor is fixedly connected to the inner wall of the slide groove by a screw; the controller is used to receive and store the contact signal sent by the contact sensor, and analyze the upper limb training status of the trainee based on the contact signal.

[0070] The specific implementation process is as follows: the contact sensor is used to determine whether the rack 10 is moving, thereby determining whether the trainee is performing swing or wall climbing training. Based on the precise motion data provided by the contact signal of the contact sensor, the training system can provide each patient with a personalized training plan and dynamically adjust the training intensity and angle according to actual conditions.

[0071] Embodiment 4:

[0072] The difference from the above embodiment is that an inclination sensor is also provided at the rotational cooperation point between the pointer 3 and the arc ruler 2, and the controller is used to receive and store the angle signal emitted by the inclination sensor, and analyze the angle of the trainee's upper limb flattening training based on the angle signal.

[0073] The specific implementation process is as follows: the inclinometer can detect and record the angle change of the pointer 3 relative to the arc ruler 2, so that the trainer can more accurately understand the angle change of his / her own body during the training process, so as to make more precise adjustments and controls. And based on the real-time data provided by the inclinometer, the training system can provide personalized training suggestions for each patient, such as gradually increasing the difficulty or adjusting the training frequency.

[0074] Embodiment 5:

[0075] As attached Figure 4 As shown, the difference from the above embodiment is that the training system includes a data acquisition module, a data analysis module, an intelligent control module and an interactive module. Among them, the data acquisition module is mainly used to collect the contact signal of the rack 10 and the angle signal of the pointer 3. The data analysis module is used to analyze the current training status of the trainee and obtain the trainee's motion data. The intelligent control module is used to adjust the training frequency and training difficulty according to the motion data. The interactive module is used to provide an interactive interface and language broadcast.

[0076] The following is a detailed explanation of the functions of each module:

[0077] The data acquisition module is used to collect the contact signal of the rack 10 (through the contact sensor) and the angle signal of the pointer 3 (through the inclination sensor).

[0078] The data analysis module is used to analyze the current training status of the trainee according to the contact signal and the angle signal, and obtain the trainee's motion data (such as motion speed, strength and stability, etc.).

[0079] The intelligent control module is used to control the first telescopic member and the second telescopic member to extend and retract, and control the arc ruler 2 to rotate and move through the first telescopic member and the second telescopic member; the training frequency and training difficulty are adjusted based on the motion data. When the trainee shows a higher athletic ability, the system will increase the training difficulty to further improve his skill level; otherwise, the training difficulty will be reduced to ensure the safety and effectiveness of the training process.

[0080] The interactive module is used to provide an interactive interface and language broadcast, and to give prompts based on the current training frequency and training difficulty. For example, during the training process, it receives contact sensor signals to remind the patient whether he needs to perform upper limb swing or wall climbing training, and assist the patient to complete the training.

[0081] The specific implementation process is as follows: Through the collaborative work of various modules, the training system can provide trainees with a comprehensive and personalized training environment. It not only helps trainees to quickly recover their skills, but also stimulates their interest and motivation in training, making them more actively participate in training. In addition, intelligent control can reduce human intervention and improve the automation and intelligence level of the training process. At the same time, through real-time monitoring and analysis of training data, the training system can promptly discover and correct errors or deficiencies in training to ensure the safety and effectiveness of the training process.

[0082] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An upper limb flattening protractor, characterized in that: It comprises a ruler (1) for finger wall climbing training and a semicircular arc ruler (2) for upper limb flattening training; the arc ruler (2) and the ruler (1) are installed alternately; The arc ruler (2) and the straight ruler (1) are both marked with scales, and the center point of the arc ruler (2) is rotated with a pointer (3).

2. The upper limb flattening protractor according to claim 1, characterized in that: Baffles (4) are symmetrically fixedly connected to both sides of the bottom of the circular arc ruler (2).

3. The upper limb flattening protractor according to claim 2, characterized in that: A handle (5) is fixedly connected to the side of the pointing mark (3) away from the arc ruler (2).

4. The upper limb flattening protractor according to claim 3, characterized in that: When the pointing indicator (3) rotates to contact the baffle (4), the pointing scales thereof are all initial scales.

5. The upper limb flattening protractor according to claim 4, characterized in that: It also includes an adjustment component for adjusting the position of the circular arc ruler (2) and a training system for assisting training; The adjustment component comprises a base plate (6), a controller and a first telescopic member; The controller is used to control the first telescopic member to extend and retract; the first telescopic member is rotationally matched with the bottom plate (6), and the output shaft of the first telescopic member is fixedly connected to the center point of the arc ruler (2) on the side away from the pointing mark (3); A rotating assembly for driving the first telescopic member to rotate is also provided on the bottom plate (6).

6. The upper limb flattening protractor according to claim 5, characterized in that: The rotating assembly comprises a second telescopic member, a gear (9) and a rack (10); The controller is used to control the second telescopic member to telescope; the second telescopic member is fixedly connected to the bottom plate (6); the output shaft of the second telescopic member is fixedly connected to a connecting plate (11); and the connecting plate (11) is fixedly connected to the bottom of the rack (10); The bottom plate (6) is provided with a limiting assembly for providing stability for the movement of the rack (10); The gear (9) and the rack (10) are meshed with each other, and the gear (9) is coaxially fixedly connected with a rotating rod (12); a rotating plate (13) is fixedly connected to the bottom plate (6), and an end of the rotating rod (12) away from the gear (9) passes through the rotating plate (13) and is fixedly connected to the first telescopic member; the ruler (1) is fixedly connected to the top of the rotating plate (13).

7. The upper limb flattening protractor according to claim 6, characterized in that: The limiting assembly comprises a limiting plate (14), wherein the limiting plate (14) is provided with a sliding groove along its length direction; a sliding block is fixedly connected to the side of the rack (10) away from the gear (9), and the sliding block is located in the sliding groove for vertical sliding cooperation; the side of the limiting plate (14) away from the sliding groove is fixedly connected to the bottom plate (6), and the bottom plate (6) is also fixedly connected to a housing (15), and the gear (9), the rack (10) and the limiting plate (14) are all located inside the housing (15).

8. The upper limb flattening protractor according to claim 7, characterized in that: A contact sensor is fixedly connected to the inner wall of the slide groove; the controller is used to receive and store the contact signal sent by the contact sensor, and analyze the upper limb training status of the trainee based on the contact signal.

9. The upper limb flattening protractor according to claim 8, characterized in that: An inclination sensor is also provided at the rotational matching position of the pointer (3) and the circular arc ruler (2), and the controller is used to receive and store the angle signal sent by the inclination sensor, and analyze the angle of the trainee's upper limb flattening training based on the angle signal.

10. The upper limb flattening protractor according to claim 9, characterized in that: The training system includes the following modules: A data acquisition module, used for acquiring a contact signal of the rack (10) and an angle signal of the pointer (3); A data analysis module is used to analyze the current training status of the trainee according to the contact signal and the angle signal, and obtain the trainee's motion data; An intelligent control module is used to control the first telescopic member and the second telescopic member to extend and retract, and to control the arc ruler (2) to rotate and move through the first telescopic member and the second telescopic member; and to adjust the training frequency and training difficulty based on the motion data; The interactive module is used to provide an interactive interface and language broadcast, and to give prompts based on the current training frequency and training difficulty.

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