A joint gear recognition mechanism and a fitness mirror

Abstract

The present invention discloses a joint gear position recognition mechanism and a fitness mirror, including a sleeve. A rotating shaft is rotatably arranged inside the sleeve. A gear shaft is rotatably connected to the end of the rotating shaft. A sliding sleeve is sleeved on the outer surface of the rotating shaft, and the rotation of the gear shaft drives the sliding sleeve to slide on the outer surface of the rotating shaft. A second signal PCBA is installed on the outer surface of the sleeve, and the signal emitted by the second signal PCBA can pass through the outer wall of the sleeve to its interior. The swing angle of the gear shaft is judged by whether there is signal feedback at the transmitting end of the second signal PCBA. The beneficial effect of the present invention is that the rotation of the gear shaft drives the sliding sleeve to slide on the outer surface of the rotating shaft, so that the second signal PCBA can detect the existence of the sliding sleeve, thereby judging the corresponding angle, realizing the automatic recognition of the angle, and further realizing the recognition of the joint gear position.

Description

Technical Field

[0001] The present invention relates to the technical field of fitness mirrors, in particular to a joint gear position recognition mechanism and a fitness mirror. Background Art

[0002] With the continuous improvement of living standards, people's demand for fitness is becoming more and more extensive. As a new type of portable fitness equipment, a fitness mirror includes a mirror structure and a display structure. The mirror structure is arranged in front of the display structure to reflect the image of the user's movement posture, facilitating the user to obtain movement feedback. The display structure displays video content through the mirror structure, and at this time, the image of the user's movement posture is superimposed on the video content to guide the user to exercise with the correct posture.

[0003] At present, most fitness mirrors on the market do not have a gear position recognition function for the force arm, which brings inconvenience to some new users when using the fitness mirror for exercise. When training according to the course content, they still have to carefully distinguish the angle of the force arm and cannot prompt the user to make corresponding force arm adjustments according to the current position of the force arm, lacking the intelligent function of human-computer interaction. Therefore, we provide a joint gear position recognition mechanism and a fitness mirror to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a joint gear position recognition mechanism and a fitness mirror.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A joint gear position recognition mechanism includes a sleeve. A rotating shaft is rotatably arranged inside the sleeve. The end of the rotating shaft is rotatably connected to a gear shaft. A sliding sleeve is sleeved on the outer surface of the rotating shaft, and the rotation of the gear shaft drives the sliding sleeve to slide on the outer surface of the rotating shaft. A second signal PCBA is installed on the outer surface of the sleeve, and the signal emitted by the second signal PCBA can pass through the outer wall of the sleeve to its interior. The swing angle of the gear shaft is judged by whether there is signal feedback at the transmitting end of the second signal PCBA.

[0007] Preferably, a first signal PCBA capable of receiving and transmitting multiple groups of signals is arranged at the end of the sleeve far from the gear shaft. A plurality of reflecting sheets are arranged on the end face of the rotating shaft close to the first signal PCBA. The corresponding angle is judged by the first signal PCBA receiving different combinations of signals reflected from different reflecting sheets.

[0008] Preferably, a second straight tooth is arranged on the surface of the gear shaft, and a first straight tooth meshing with the second straight tooth is arranged at the end of the sliding sleeve close to the gear shaft.

[0009] Preferably, a second guide wheel is arranged at one end of the gear shaft, and a first guide wheel is arranged at the other end.

[0010] Preferably, a first hole is provided on the outer surface of the sleeve, and the transmitting end of the second signal PCBA is located in the first hole.

[0011] Preferably, an end cap is fixedly installed on the end face of the sleeve, and a second hole adapted to the transmitting end of the first signal PCBA is provided on the end cap.

[0012] Preferably, a limit screw is further installed on the end face of the rotating shaft.

[0013] Preferably, a plurality of reflecting sheets capable of reflecting the signals transmitted by the first signal PCBA are arranged at intervals on the rotating end face. A second hole adapted to the shape and number of the transceiver ends of the first signal PCBA is provided on the end cap. As the rotating shaft rotates, the reflecting sheets are in different positions. The rotation angle of the rotating shaft is determined by the combination of signals received from different reflecting sheets by the first signal PCBA, or the rotation angle of the rotating shaft is determined by the combination of whether the different transceiver ends of the first signal PCBA receive signals.

[0014] Preferably, the signals transmitted by the first signal PCBA and the second signal PCBA are infrared rays.

[0015] The present application also discloses a fitness mirror, including a joint gear position recognition mechanism described above. The joint gear position recognition mechanism is installed on both sides of the fitness mirror. Force arms connected to the gear shaft are respectively arranged on both sides of the fitness mirror, and the angles of the force arms change with the change of the angle of the gear shaft.

[0016] The present invention has the following advantages:

[0017] 1. In the present invention, the rotation of the gear shaft drives the sliding sleeve to slide on the outer surface of the rotating shaft, so that the second signal PCBA can detect the presence of the sliding sleeve, thereby judging the corresponding angle, realizing the automatic recognition of the angle, and further realizing the recognition of the joint gear position.

[0018] 2. In the present invention, the first signal PCBA detects the combination of signals fed back by different reflecting sheets, and thus judges the rotation angle of the rotating shaft through different combinations, and further realizes the recognition of the rotation gear position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an overall schematic diagram of the joint gear position recognition mechanism of the present invention.

[0020] Figure 2 is an exploded schematic diagram of the joint gear position recognition mechanism of the present invention.

[0021] Figure 3 is a schematic diagram of the gear shaft structure of the present invention.

[0022] Figure 4Schematic diagram of the rotating shaft structure of the present invention.

[0023] Figure 5 Exploded view of the sleeve and the second signal PCBA of the present invention.

[0024] Figure 6 Schematic diagram of the end cap structure of the present invention.

[0025] Figure 7 Cross-sectional view of the joint gear recognition mechanism when the swing angle of the present invention is 0 degree.

[0026] Figure 8 Cross-sectional view of the joint gear recognition mechanism when the swing angle of the present invention is 20 degrees.

[0027] Figure 9 Side view structure diagram of the joint gear recognition mechanism of the present invention.

[0028] Figure 10 Side view diagram of the joint gear recognition mechanism without the first signal PCBA of the present invention.

[0029] Figure 11 Schematic diagrams of the states of each rotation angle of the joint gear recognition mechanism without the first signal PCBA and the end cap of the present invention.

[0030] Figure 12 Schematic diagram of the overall structure of the fitness mirror of the present invention.

[0031] Figure 13 Schematic diagrams of the states of the force arm of the fitness mirror rotating at multiple angles of the present invention.

[0032] Figure 14 Schematic diagram when the force arm of the fitness mirror is in the swinging state of the present invention.

[0033] In the figure, 1. Sleeve; 2. Rotating shaft; 3. Sliding sleeve; 4. Gear shaft; 5. First hole position; 6. First signal PCBA; 7. Second signal PCBA; 8. End cap; 9. Second hole position; 10. First straight tooth; 11. Second straight tooth; 12. Reflective sheet; 13. Limit screw; 14. First guide wheel; 15. Second guide wheel. Detailed implementation mode

[0034] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0035] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0036] As Figure 1 shown in Embodiment - 13:

[0037] A joint gear position recognition mechanism includes a sleeve 1. A rotating shaft 2 is rotatably arranged inside the sleeve 1. A gear shaft 4 is rotatably connected to the end of the rotating shaft 2. A sliding sleeve 3 is sleeved on the outer surface of the rotating shaft 2. The rotation of the gear shaft 4 drives the sliding sleeve 3 to slide on the outer surface of the rotating shaft 2. A second signal PCBA 7 is installed on the outer surface of the sleeve 1, and the signal emitted by the second signal PCBA 7 can pass through the outer wall of the sleeve 1 to its interior. The swing angle of the gear shaft 4 is judged by whether there is signal feedback at the transmitting end of the second signal PCBA 7.

[0038] Referring to Figure 1 and Figure 2 , the gear shaft 4 drives the sliding sleeve 3 to slide on the outer surface of the rotating shaft 2 and inside the sleeve 1. The sliding sleeve 3 moves to the signal transmitting end of the second signal PCBA 7, so that the sliding sleeve 3 is detected by the second signal PCBA 7, thereby judging the rotation angle of the gear shaft 4 at this time; in this embodiment, when the second signal PCBA 7 detects the sliding sleeve 3, that is, when the sliding sleeve 3 moves to the position of the signal transmitting end of the second signal PCBA 7 under the drive of the rotation of the gear shaft 4, it is determined that the rotation angle of the gear shaft 4 is 20°.

[0039] A first signal PCBA 6 capable of receiving and transmitting multiple groups of signals is provided at the end of the sleeve 1 away from the gear shaft 4. A plurality of reflecting sheets 12 are provided on the end face of the rotating shaft 2 close to the first signal PCBA 6. The corresponding angle is judged by the first signal PCBA 6 receiving different combinations of signals reflected from different reflecting sheets 12.

[0040] The signals emitted by the first signal PCBA 6 and the second signal PCBA 7 are infrared rays.

[0041] Referring to Figure 1 and Figure 2, a reflective sheet 12 is provided at the end of the rotating shaft 2. The first signal PCBA 6 can detect the reflective sheet 12 provided at the end of the rotating shaft 2. The number and distribution of the reflective sheets 12 are designed according to requirements. The first signal PCBA 6 has multiple signal transceiver ends (transmitting end and receiving end). Different numbers of reflective sheets 12 are detected through different numbers of transceiver ends. The reflective sheet 12 can reflect the infrared signals emitted by the first signal PCBA 6 and the second signal PCBA 7, and can receive the infrared signals reflected from the reflective sheet 12. By combining different transceiver ends and detecting different numbers of reflective sheets 12 or receiving the signals reflected from the reflective sheet 12, the rotation angle of the rotating shaft 2 can be determined. The angle corresponding to this combination has been stored in the memory. It is only necessary to compare the detected combination with the data in the memory to obtain the corresponding rotation angle, thereby realizing the identification of the gear position. For the specific combination, refer to the following text.

[0042] A second straight tooth 11 is provided on the surface of the gear shaft 4, and a first straight tooth 10 meshing with the second straight tooth 11 is provided at the end of the sliding sleeve 3 close to the gear shaft 4.

[0043] Refer to Figure 2 and Figure 3 , the gear shaft 4 is rotationally connected to the end of the rotating shaft 2 through two side shafts. The second straight tooth 11 on the upper part of the gear shaft 4 meshes with the first straight tooth 10. Since the gear shaft 4 rotates, the first straight tooth 10 is driven to move on the outer surface of the rotating shaft 2 through the transmission of the second straight tooth 11, so that the sliding sleeve 3 moves to the detection position of the second signal PCBA 7. When the second signal PCBA 7 detects the sliding sleeve 3, it is determined that the rotation angle of the gear shaft 4 is 20°. This angle setting can be pre-stored in the corresponding memory, that is, when the second signal PCBA 7 detects the sliding sleeve 3, it is determined that the angle is 20°.

[0044] A second guide wheel 15 is provided at one end of the gear shaft 4, and a first guide wheel 14 is provided at the other end.

[0045] Refer to Figure 2 and Figure 3 As shown, the pull rope of the force arm of the fitness mirror is guided by the first guide wheel 14 and the second guide wheel 15, which is convenient for the extension or retraction of the pull rope.

[0046] A first hole position 5 is provided on the outer surface of the sleeve 1, and the transmitting end of the second signal PCBA 7 is located in the first hole position 5.

[0047] Refer to Figure 5 , Figure 7 and Figure 8As shown, the signal at the transmitting end of the second signal PCBA7 can pass through the inner wall of the sleeve 1 and enter the interior of the sleeve 1. When the sliding sleeve 3 moves to the position of the transmitting end of the second signal PCBA7, the second signal PCBA can detect the presence of the sliding sleeve 3. At this time, the rotation angle of the gear shaft 4 can be determined.

[0048] An end cover 8 is fixedly installed on the end face of the sleeve 1, and a second hole 9 adapted to the transmitting end of the first signal PCBA6 is provided on the end cover 8.

[0049] Referring to Figure 2 and Figure 6 As shown, the transceiver of the first signal PCBA6 transmits or receives signals through the second hole 9. In this embodiment, there are three second holes 9, which are evenly spaced apart. The end cover 8 is hollow, and the second holes 9 are provided at the edge. The specific shape refers to Figure 6 .

[0050] A limit screw 13 is also installed on the end face of the rotating shaft 2. When the rotating shaft 2 rotates, the limit screw 13 will also rotate. When the rotating shaft 2 rotates a certain angle, it will be blocked by the inner wall of the end cover 8 to achieve limiting.

[0051] A plurality of reflective sheets 12 that can reflect the signals emitted by the first signal PCBA6 are arranged at intervals on the end face of the rotating shaft 2. The end cover 8 is provided with second holes 9 adapted to the shape and quantity of the transceiver of the first signal PCBA6. When the rotating shaft 2 rotates, the reflective sheets 12 are in different positions. The rotation angle of the rotating shaft 2 is determined by the signal combination received by the first signal PCBA6 from different reflective sheets 12, or the rotation angle of the rotating shaft 2 is determined by the signal combination received by different transceivers of the first signal PCBA6.

[0052] Referring to Figure 1 and Figure 2 , the gear shaft 4 and the rotating shaft 2 are connected. When the gear shaft 4 rotates around the central axis of the rotating shaft 2, the gear shaft 4 rotates to drive the rotating shaft 2 to rotate as well.

[0053] Referring to Figures 7 to 11 As shown, a plurality of grooves are provided on the end face of the rotating shaft 2, and the grooves and the limit screw 13 are evenly spaced on the end face of the rotating shaft 2. Referring to Figure 11 in Figure Ⅰ , the grooves are marked counterclockwise as a, b, c, d, e, f, g, h, i, j, k. The limit screw 13 is between a and k. Referring to Figure 11In Figure II, reflective sheets are provided in grooves a, c, e, h, and j. The three transceiver terminals of the first PCBA 6 are respectively defined as the first transceiver terminal, the second transceiver terminal, and the third transceiver terminal in the counterclockwise direction. In the initial state, the first, second, and third transceiver terminals can all receive signal feedback, that is, they can receive the signals reflected by the reflective sheets 12 at a, c, and e.

[0054] Refer to Figure 11 In Figure II, in the initial state, grooves a, c, and e respectively correspond to three second hole positions 9, that is, they correspond to the three transceiver terminals of the first PCBA 6. At this time, the three transceiver terminals of the first signal PCBA 6 can all receive signal feedback, that is, they receive the emitted infrared rays. At this time, it is in the 0-degree gear position;

[0055] Figure 11 In Figure III, at this time, the rotating shaft 2 rotates, and grooves b, d, and f rotate to the transceiver terminals of the first PCBA 6. Since no reflective sheet 12 is provided at b, d, and f, the first, second, and third transceiver terminals of the first signal PCBA 6 cannot receive signal feedback. At this time, it is determined to be in the 30-degree gear position state;

[0056] Figure 11 In Figure VI, the rotating shaft 2 rotates, and grooves c, e, and g rotate to the transceiver terminals of the first PCBA 6. Since no reflective sheet 12 is provided at groove g, the first and second transceiver terminals of the first signal PCBA 6 can receive signal feedback, and the third transceiver terminal cannot receive signal feedback. At this time, it is determined to be in the 60-degree gear position state;

[0057] Refer to Figure 11 In Figure V, the rotating shaft 2 rotates, and grooves d, f, and h rotate to the transceiver terminals of the first PCBA 6. Since no reflective sheet 12 is provided at grooves d and f, the third transceiver terminal of the first signal PCBA 6 can receive signal feedback, while the first and second transceiver terminals cannot receive signal feedback. At this time, it is determined to be in the 90-degree gear position state;

[0058] Refer to Figure 11 In Figure VI, the rotating shaft 2 rotates, and grooves e, g, and i rotate to the transceiver terminals of the first PCBA 6. Since no reflective sheet 12 is provided at grooves g and i, the first transceiver terminal of the first signal PCBA 6 can receive signal feedback, while the second and third transceiver terminals cannot receive signal feedback. At this time, it is determined to be in the 120-degree gear position state;

[0059] Refer to Figure 11In Figure VII, the rotation shaft 2 rotates, and the grooves f, h, and j rotate to the transceiver ends of the first PCBA 6. There is no reflective sheet 12 at the groove f. The second and third transceiver ends of the first signal PCBA 6 can receive the signal feedback from the reflective sheets 12 at the grooves h and j. Then, the first transceiver end located at the groove f cannot receive the signal feedback. At this time, it is determined to be in the 150-degree gear state.

[0060] The present application also discloses a fitness mirror, including a joint gear position recognition mechanism described above. The joint gear position recognition mechanism is installed on both sides of the fitness mirror. Force arms connected to the gear shaft 4 are respectively arranged on both sides of the fitness mirror, and the angle of the force arms changes following the change of the angle of the gear shaft 4.

[0061] Referring to Figure 12 and Figure 13 , when the force arm is connected to the gear shaft 4, the force arm rotates to drive the gear shaft 4 to rotate, so that the joint gear position recognition mechanism recognizes the gear position through the rotation angle;

[0062] Referring to Figure 14 , the force arm swings, which also causes the gear shaft 4 to swing. The joint gear position recognition mechanism recognizes the swinging angle to identify the swinging gear position.

[0063] Specifically, Figure 8 what is shown is the swinging state, corresponding to Figure 14 where the force arms on both sides of the fitness mirror swing to both sides respectively;

[0064] Figure 13 In Figure a in Figure 11 corresponds to Figure Ⅱ in Figure 13 which is the 0-degree state, Figure 11 Figure b in Figure Ⅲ corresponds to Figure 13 in Figure 11 which is the 30-degree state; Figure Ⅵ Figure c in Figure 13 corresponds to Figure 11 in Figure Ⅴ which is the 60-degree state; Figure 13 Figure d in Figure 11 corresponds to Figure Ⅵ in Figure 13 which is the 120-degree state; Figure 11 Figure f in Figure Ⅶ corresponds to

[0065] The working process of the present invention is as follows: The force arm of the fitness mirror drives the gear shaft 4 to swing. Under the meshing of the second straight tooth 11 and the first straight tooth 10, the sliding sleeve 3 slides on the outer surface of the rotating shaft 2 to the position of the second signal PCBA 7. At this time, when the second signal PCBA 7 detects the rotating shaft 2, it is determined that the gear position is at a swing angle of 20 degrees; when the force arm drives the gear shaft 4 to rotate, different combinations of signals received by the three transceiver terminals of the first signal PCBA 6 are used to determine the angle of the force arm, and then to determine what gear position it is in.

[0066] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An articular gear position recognition mechanism, characterized in that: It includes a sleeve (1), a rotating shaft (2) is rotatably arranged inside the sleeve (1), a gear shaft (4) is rotatably connected to the end of the rotating shaft (2), a sliding sleeve (3) is sleeved on the outer surface of the rotating shaft (2), and the rotation of the gear shaft (4) drives the sliding sleeve (3) to slide on the outer surface of the rotating shaft (2). A second signal PCBA (7) is installed on the outer surface of the sleeve (1), and the signal emitted by the second signal PCBA (7) can pass through the outer wall of the sleeve (1) to its interior. The swing angle of the gear shaft (4) is judged by whether there is signal feedback at the transmitting end of the second signal PCBA (7). A first signal PCBA (6) capable of receiving and transmitting multiple groups of signals is arranged at the end of the sleeve (1) away from the gear shaft (4). A plurality of reflective sheets (12) are arranged on the end face of the rotating shaft (2) close to the first signal PCBA (6). The corresponding angle is judged by the first signal PCBA (6) receiving different combinations of signals reflected from different reflective sheets (12). A second straight tooth (11) is arranged on the surface of the gear shaft (4), and a first straight tooth (10) meshing with the second straight tooth (11) is arranged at the end of the sliding sleeve (3) close to the gear shaft (4). A first hole position (5) is opened on the outer surface of the sleeve (1), and the transmitting end of the second signal PCBA (7) is located in the first hole position (5). An end cover (8) is fixedly installed on the end face of the sleeve (1), and a second hole position (9) adapted to the receiving and transmitting ends of the first signal PCBA (6) is opened on the end cover (8). A plurality of reflective sheets (12) capable of reflecting the signal emitted by the first signal PCBA (6) are arranged at intervals on the end face of the rotating shaft (2). A second hole position (9) adapted to the shape and number of the receiving and transmitting ends of the first signal PCBA (6) is opened on the end cover (8). When the rotating shaft (2) rotates, the reflective sheets (12) are in different positions. The rotation angle of the rotating shaft (2) is judged by the first signal PCBA (6) receiving the signal combination from different reflective sheets (12), or the rotation angle of the rotating shaft (2) is judged by whether the first signal PCBA (6) receives the signal combination at different receiving and transmitting ends.

2. The joint gear recognition mechanism according to claim 1, characterized in that: A second guide wheel (15) is arranged at one end of the gear shaft (4), and a first guide wheel (14) is arranged at the other end.

3. The joint gear position recognition mechanism according to claim 1, wherein: A limit screw (13) is further installed on the end face of the rotating shaft (2).

4. The joint gear recognition mechanism according to claim 1, characterized in that: The signals emitted by the first signal PCBA (6) and the second signal PCBA (7) are infrared rays.

5. A fitness mirror, characterized in that: It includes a joint gear position recognition mechanism according to any one of claims 1 to 4. The joint gear position recognition mechanism is installed on both sides of the fitness mirror. Force arms connected to the gear shaft (4) are respectively arranged on both sides of the fitness mirror, and the angles of the force arms change following the change of the angle of the gear shaft (4).

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