Conversion device applied to treadmill

Abstract

The invention discloses a conversion device applied to a treadmill, the treadmill comprises a safety belt and a sensor, the conversion device comprises a rotating shaft rotationally arranged relative to the treadmill and at least two winding structures arranged on the rotating shaft, and the multiple winding structures are sequentially arranged in the axis direction of the rotating shaft; the multiple winding structures at least comprise the first winding structure used for being matched with the sensor for detection and the second winding structure used for winding the safety belt, the safety belt is separated from the second winding structure to drive the rotating shaft and the first winding structure to rotate, and the sensor obtains separation information of the safety belt by detecting the first winding structure. The invention provides a conversion device applied to a treadmill. The conversion device is used for solving the technical problem that an existing treadmill sensor cannot accurately detect the actual motion condition of a user under the limitation of a safety belt.

Description

Technical Field

[0001] This application belongs to the technical field of training equipment, and specifically relates to a treadmill. Background Art

[0002] With the improvement of people's health awareness, as a convenient training equipment, the treadmill is widely used in families and training places, and can provide exercise methods for people in different physical conditions. For people with relatively good health and strong sports ability, the treadmill can meet their daily running exercise needs, and achieve goals such as aerobic training and enhancing cardiopulmonary function by adjusting parameters such as speed and slope. However, considering some people with weak constitutions or those in the stage of physical function recovery, there is a certain risk in exercising on the treadmill relying solely on their own balance and control abilities, and they are prone to falling or losing control of the exercise rhythm. Therefore, in order to ensure the safety of this part of the population, safety belts are provided on the treadmill. One end of the safety belt is fixed to the treadmill, and the other end is connected to the user. When the user moves to the edge of the runway or is about to lose balance for various reasons, the safety belt can timely limit their movement range, provide necessary protection for the user, and enable them to exercise or rehabilitate under relatively safe conditions.

[0003] However, traditional treadmills usually have sensors, which are generally arranged at the front end of the treadmill. Their function is to detect the position of the user from the sensor, so as to issue an alarm or take emergency braking measures when the user is too close to the front end to avoid collision injuries. When the treadmill is equipped with a safety belt, due to the restriction of the safety belt on the movement trajectory of the user, when the user has an accident such as slipping at different positions, the position change of the user from the sensor is not large at this time, but the user has already had an accident such as falling, and the sensor cannot detect the state of the user in time, resulting in the inability to effectively obtain the changes of the user after an emergency occurs. The existing sensor arrangement positions and setting methods cannot accurately detect the actual movement status of the user under the restriction of the safety belt, resulting in the ineffective operation of the sensor on the treadmill with a safety belt. Summary of the Invention

[0004] This application provides a conversion device applied to a treadmill to solve the technical problem that the existing treadmill sensors cannot accurately detect the actual movement status of the user under the restriction of the safety belt.

[0005] The first object of this application is to provide a conversion device applied to a treadmill, and the technical solution adopted is:

[0006] A conversion device applied to a treadmill, the treadmill includes a safety belt and a sensor, the conversion device includes a rotating shaft rotatably arranged relative to the treadmill and at least two winding structures arranged on the rotating shaft, the plurality of winding structures are arranged in sequence along the axis direction of the rotating shaft, the plurality of winding structures at least include a first winding structure for cooperating with the sensor to detect and a second winding structure for winding the safety belt, when the safety belt disengages from the second winding structure, it drives the rotating shaft and the first winding structure to rotate, and the sensor obtains the disengagement information of the safety belt by detecting the first winding structure.

[0007] A conversion device applied to a treadmill in the first object of the present application further includes the following additional technical features:

[0008] The sensor includes a lead-out cable and a winding member for winding the lead-out cable, the first winding structure is connected to the lead-out cable, when the safety belt disengages from the second winding structure, it drives the rotating shaft to rotate, so that the first winding structure winds the lead-out cable.

[0009] The winding structure includes two limiting plates oppositely arranged along the axis direction of the rotating shaft and a plurality of winding members connecting the two limiting plates, the winding members wind the safety belt and the lead-out cable, the plurality of winding members are distributed in a single-layer regular polygon around the axis of the rotating shaft, and the winding members are detachably arranged on the two limiting plates.

[0010] The winding member extends along the axis direction of the rotating shaft, the limiting plate is provided with a plurality of positioning holes and mounting holes for cooperating with the rotating shaft, the plurality of positioning holes are distributed in a multi-layer regular polygon around the axis of the rotating shaft, along the axis direction of the rotating shaft, one end of the winding member cooperates with the positioning hole of the front limiting plate, and the other end cooperates with the positioning hole of the rear limiting plate.

[0011] The winding member is in clearance fit with the positioning hole, the winding structure is further provided with a fixing member and a locking member, the fixing member includes a limiting section and a connecting section, the connecting section passes through the positioning holes of the two limiting plates and is connected to the locking member, and the limiting section is used for abutting against the limiting plate.

[0012] The first winding structure is located on one side of the second winding structure, the winding structure includes a limiting plate and a plurality of winding members, the plurality of winding members are distributed in a single-layer regular polygon around the axis of the rotating shaft, the first winding structure includes two limiting plates, the two limiting plates are the first limiting plate and the second limiting plate, the second winding structure includes one limiting plate, the limiting plate of the second winding structure is the third limiting plate, the first limiting plate, the second limiting plate and the third limiting plate are arranged in sequence along the axis of the rotating shaft, the winding member extends along the axis direction of the rotating shaft, one end of the winding member of the second winding structure is connected to the third limiting plate, and the other end is connected to the second limiting plate, one end of the winding member of the first winding structure is connected to the first limiting plate, and the other end is connected to the second limiting plate.

[0013] The perpendicular distance between the axis of the winding member of the first winding structure and the axis of the rotating shaft is L1, and the perpendicular distance between the axis of the winding member of the second winding structure and the axis of the rotating shaft is L2, where L1 ≤ L2. The plurality of winding members of the second winding structure are arranged in a staggered manner with respect to the plurality of winding members of the first winding structure.

[0014] The winding structure includes two limiting plates oppositely arranged along the axis direction of the rotating shaft and a plurality of winding members connecting the two limiting plates. The limiting plates are provided with a plurality of positioning holes and mounting holes for cooperating with the rotating shaft. At least one of the plurality of positioning holes provided in one limiting plate is provided with internal threads, and at least one winding member is threadedly connected to the positioning hole.

[0015] The conversion device further includes mounting structures provided at both ends of the rotating shaft. The rotating shaft is rotatably arranged in the mounting structures, and the mounting structures are fixed to the mounting positions. The mounting structures are further provided with reset members, and the reset members are connected to the rotating shaft. When the safety belt is detached from the second winding structure, the rotation of the rotating shaft drives the deformation of the reset members, and the reset of the reset members drives the rotation of the rotating shaft to wind up the safety belt by the second winding structure.

[0016] The second object of the present application is to provide a treadmill, which utilizes the conversion device as described in the first object. The technical solution adopted is:

[0017] The treadmill includes a base and a column provided on the base. The treadmill further includes a running track. The column is located in front of the running track. A receiving bin is provided on the side of the column facing away from the running track. The conversion device is arranged in the receiving bin. A sensor is arranged below the conversion device. A safety belt outlet is provided on the side of the column facing the running track, and at least a part of the safety belt extends out of the safety belt outlet.

[0018] Due to the adoption of the above technical solutions, the beneficial effects obtained by the present application are:

[0019] 1. By providing a rotating shaft and at least two winding structures arranged on the rotating shaft, the rotating shaft provides an installation position and reliable support for the winding structures. The plurality of winding structures can rotate synchronously with the rotating shaft. By providing the second winding structure to wind up the safety belt and the first winding structure for sensor detection, the movement stroke of the second winding structure is synchronized to the first winding structure through the rotating shaft, so that the first winding structure can timely and accurately feedback the working state of the second winding structure, ensuring a high degree of fit between the first winding structure and the second winding structure. By detecting the first winding structure with the sensor, the first winding structure is dedicated to cooperating with the sensor, improving the detection accuracy of the sensor. In one embodiment, the sensor can obtain the movement state of the first winding structure in real time, intuitively and accurately, and then obtain the length information and speed information of the safety belt detached from the second winding structure, so as to accurately map the position movement and instantaneous change of the movement state of the user on the treadmill.

[0020] 2. As a preferred embodiment of the present application, by setting the lead-out rope to be connected with the first winding structure, the rotation of the second winding structure will drive the first winding structure to wind the lead-out rope, and the lead-out rope corresponds to the length of the safety belt, so that the sensor can collect the movement information of the first winding structure more timely and accurately, and then intuitively feedback the information of the second winding structure. By setting the winding member, on the one hand, the lead-out rope is wound by the winding member, so that the lead-out rope and the first winding structure are in a tight state, and can be wound by the first winding structure more timely, thereby improving the response speed. At the same time, the lead-out rope can be wound around the first winding structure in an orderly manner, so that the first winding structure can wind the lead-out rope more smoothly; on the other hand, by setting the winding member to wind the lead-out rope, the lead-out rope drives the first winding structure to rotate, thereby realizing the second winding structure to wind the safety belt, realizing the automatic recovery of the safety belt, and making the safety belt in the use state in a stressed state, avoiding the slack of the safety belt, reducing the swing amplitude of the safety belt 15, and realizing the dynamic adjustment of the safety belt.

[0021] 3. As a preferred embodiment of the present application, by setting a plurality of winding members to be distributed in a single-layer regular polygon around the axis of the rotating shaft, the safety belt and the lead-out cable can be guided and combed at multiple angles when the safety belt and the lead-out cable are wound and released, effectively reducing the probability of twisting and winding of the safety belt and the lead-out cable, and avoiding local wear and strength reduction caused by twisting and winding. At the same time, the winding process of the first winding structure and the second winding structure is smoother, and the plurality of winding members can effectively reduce the overall weight of the winding structure, which is convenient for the sensor winding member to wind up the lead-out cable. By setting the winding member to be detachably arranged on two limiting plates, the installation and disassembly of the winding structure is facilitated, and the maintenance efficiency in the later stage is improved. In one embodiment, the applicability of the winding structure can be improved by replacing winding members of different diameters to adapt to safety belts or lead-out cables of different lengths. Moreover, the limiting plate can effectively prevent the safety belt or the lead-out cable from leaving the winding area during the winding process of the winding structure, so that the safety belt or the lead-out cable is wound and detached in an orderly manner, and the smoothness of the operation of the conversion device is improved.

[0022] 4. As a preferred embodiment of the present application, by setting a positioning hole, one end of the winding member cooperates with the positioning hole of the front limit plate, and the other end cooperates with the positioning hole of the rear limit plate. The positioning hole provides precise positioning for the winding member, and can also assist in the installation of the winding member, thereby improving the installation accuracy of the winding member. By setting a plurality of positioning holes distributed in a multi-layer regular polygon around the axis of the rotating shaft, the installation position of the winding member can be adjusted. On the one hand, the practicality of the winding structure is further improved, and the winding structure can smoothly wind safety belts or lead-out cables of different lengths without replacement. On the other hand, the length requirement of the lead-out cable is reduced, so that the lead-out cable can adapt to safety belts of different lengths, thereby improving the versatility of the conversion device.

[0023] 5. As a preferred embodiment of the present application, by setting a clearance fit between the winding member and the positioning hole, the difficulty of installing, disassembling and repairing the winding member is reduced, and the replacement and installation of the winding member are facilitated. By setting a fixing member and a locking member, the fixing member includes a limiting section and a connecting section. The connecting section passes through the positioning holes of the two limiting plates and is connected to the locking member. The limiting section is used to abut against the limiting plates. The fixing member and the locking member make the fit between the winding member and the positioning hole more stable, thereby improving the bearing capacity of the winding member and improving the stability of the winding member winding up the seat belt or the seat belt leaving the second winding structure.

[0024] 6. As a preferred embodiment of the present application, by setting a winding member of the second winding structure with one end connected to the third limiting plate and the other end connected to the second limiting plate, the setting of the second winding structure is simplified, the weight of the second winding structure and the first winding structure is reduced, and at the same time, the space occupied by the second winding structure is effectively reduced, thereby improving space utilization.

[0025] Furthermore, when the safety belt is longer than the lead-out cable, by setting L1≤L2, the lead-out cable can detect the entire safety belt, reducing the requirements for the sensor, making the sensor applicable to safety belts of different lengths, and improving the applicability of the conversion device. By arranging the multiple windings of the second winding structure and the multiple windings of the first winding structure in a staggered manner, the stability of the system is further enhanced, avoiding vibration or shaking caused by the concentrated force on the second limit plate at the same position, and ensuring the stability of the first winding structure and the second winding structure during operation.

[0026] 7. As a preferred embodiment of the present application, at least one positioning hole is provided with an internal thread, at least one winding piece is threadedly connected to the positioning hole, and the winding piece is connected and fixed to the limit plate, thereby further improving the connection strength between the winding piece and the limit plate, and enhancing the stability and reliability of the winding structure. At the same time, it is convenient to replace the winding piece, and reduce the cost and difficulty of later maintenance.

[0027] 8. As a preferred embodiment of the present application, a reset member is provided, and the reset member drives the rotating shaft to rotate so that the second winding structure reels the seat belt, thereby realizing the retraction of the seat belt. On the one hand, it helps to make the seat belt bear force when the seat belt is in working state, and avoid the seat belt from falling and swinging. The seat belt can be in a stretched state and respond in time for dynamic adjustment. On the other hand, it helps to realize automatic rewinding of the seat belt when the working state ends, avoids manual rewinding, and improves the efficiency of restoring the seat belt to the initial winding state.

[0028] 9. In this application, by arranging the conversion device in the accommodation bin of the column, the accommodation bin plays a protective role for the conversion device inside the column, reducing the possibility of the conversion device being affected by external collisions, dust, or other sundries, extending the service life of the conversion device, and ensuring its stable operation. By arranging the sensor below the conversion device, the sensor can be effectively protected, reducing the risk of sensor damage caused by external factors, thereby ensuring the accuracy and reliability of the seat belt status monitoring, providing more reliable information monitoring for the user. The sensor is arranged below the conversion device, further optimizing the utilization of the treadmill space, achieving the orderly arrangement of different functional components within the limited column space, and effectively improving the space utilization rate of the overall structure of the treadmill. In addition, the seat belt outlet is arranged on the side of the column facing the runway, and part of the seat belt extends out of the seat belt outlet, making the extending direction of the seat belt directly face the user, facilitating the user to quickly and conveniently wear the seat belt, improving the convenience of use, and at the same time reducing the risk of entanglement that may occur due to improper seat belt arrangement, further enhancing the fluency of the use process. The conversion device and the sensor are centrally arranged in the accommodation bin of the column. During later maintenance, maintenance personnel can easily access these components, greatly improving the convenience of operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0030] Figure 1 is the front view of the conversion device under an embodiment of the present application;

[0031] Figure 2 is the top view of the conversion device under an embodiment of the present application;

[0032] Figure 3 is the left view of the conversion device under an embodiment of the present application;

[0033] Figure 4 is the front view of the treadmill under an embodiment of the present application;

[0034] Figure 5 is the rear view of the treadmill under an embodiment of the present application;

[0035] Figure 6 is Figure 5 the enlarged view of part A in

[0036] Figure 7 is the front view of the seat belt under an embodiment of the present application;

[0037] Figure 8This is a top view of the seat belt under an embodiment of the present application.

[0038] Reference numerals:

[0039] 1. Treadmill; 11. Sensor; 111. Lead-out cable; 12. Base; 13. Column; 131. Accommodation chamber; 132. Seat belt outlet; 14. Running track; 15. Seat belt; 151. Starting section; 152. Extension section; 153. Body-hugging section; 154. Limiting member

[0040] 2. Conversion device;

[0041] 3. Rotating shaft;

[0042] 4. Winding structure; 41. First winding structure; 42. Second winding structure; 43. Limiting plate; 431. Positioning hole; 432. Mounting hole; 433. First limiting plate; 434. Second limiting plate; 435. Third limiting plate; 44. Winding member; 45. Fixing member; 451. Limiting section; 452. Connecting section; 46. Locking member

[0043] 5. Mounting structure. Detailed implementation manners

[0044] To more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the drawings of the specification.

[0045] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present application and the features in each embodiment may be combined with each other.

[0046] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 shown, a conversion device 2 applied to a treadmill 1, the treadmill 1 includes a seat belt 15 and a sensor 11, the conversion device 2 includes a rotating shaft 3 rotatably arranged relative to the treadmill 1 and at least two winding structures 4 arranged on the rotating shaft 3, the plurality of winding structures 4 are arranged in sequence along the axial direction of the rotating shaft 3, the plurality of winding structures 4 at least include a first winding structure 41 for cooperating with the sensor 11 to detect and a second winding structure 42 for winding the seat belt 15, when the seat belt 15 is separated from the second winding structure 42, it drives the rotating shaft 3 and the first winding structure 41 to rotate, and the sensor 11 obtains the separation information of the seat belt 15 by detecting the first winding structure 41.

[0047] In this application, by providing a rotating shaft 3 and at least two winding structures 4 arranged on the rotating shaft 3, the rotating shaft 3 provides an installation position and reliable support for the winding structures 4. Multiple winding structures 4 can rotate synchronously with the rotating shaft 3. By providing a second winding structure 42 to wind the safety belt 15, the first winding structure 41 is used for the sensor 11 to detect. The movement stroke of the second winding structure 42 is synchronized to the first winding structure 41 through the rotating shaft 3, so that the first winding structure 41 can timely and accurately feedback the working state of the second winding structure 42, ensuring a high degree of fit between the first winding structure 41 and the second winding structure 42. By detecting the first winding structure 41 with the sensor 11, the first winding structure 41 is specifically used to cooperate with the sensor 11 to improve the detection accuracy of the sensor 11. In one embodiment, the sensor 11 can obtain the movement state of the first winding structure 41 in real time, intuitively and accurately, and then obtain the length information and speed information of the safety belt 15 separated from the second winding structure 42, so as to accurately map the position movement and instantaneous change of the movement state of the user on the treadmill 1.

[0048] Those skilled in the art can clearly understand that the separation information can be length information and / or the separation speed information of the safety belt 15, etc. The multiple winding structures 4 may further include a third winding structure for synchronously winding the cable, or a fourth winding structure for connecting the damping block to prevent the safety belt from being disengaged due to inertia, etc.

[0049] In this application, the winding setting of the safety belt 15 can be any one of the following embodiments:

[0050] Embodiment 1: As shown in Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 , the sensor 11 includes a lead-out cable 111 and a winding member (not shown in the drawing) for winding the lead-out cable 111. The first winding structure 41 is connected to the lead-out cable 111. When the safety belt 15 is separated from the second winding structure 42, it drives the rotating shaft 3 to rotate, so that the first winding structure 41 winds the lead-out cable 111.

[0051] By setting the lead cable 111 to be connected to the first winding structure 41, the rotation of the second winding structure 42 will drive the first winding structure 41 to wind the lead cable 111. The length of the lead cable 111 corresponds to that of the seat belt 15, enabling the sensor 11 to collect the motion information of the first winding structure 41 more timely and accurately, and then intuitively feedback the information of the second winding structure 42. By setting the cable take-up, on the one hand, the lead cable 111 is wound by the cable take-up, making the lead cable 111 and the first winding structure 41 in a taut state, which can be wound by the first winding structure 41 more timely, improving the response speed. At the same time, it can make the lead cable 111 wind orderly on the first winding structure 41, making the first winding structure 41 wind the lead cable 111 more smoothly. On the other hand, by setting the cable take-up to wind the lead cable 111, the first winding structure 41 is driven to rotate by the lead cable 111, and then the second winding structure 42 winds the seat belt 15, realizing the automatic retraction of the seat belt 15. Moreover, it can make the seat belt 15 in a stressed state during use, avoid the slack of the seat belt 15, reduce the swing amplitude of the seat belt 15, and realize the dynamic adjustment of the seat belt 15.

[0052] Embodiment 2: As Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 shown, the conversion device 2 further includes mounting structures 5 provided at both ends of the rotating shaft 3. The rotating shaft 3 is rotatably arranged in the mounting structures 5, and the mounting structures 5 are fixed at the mounting positions. The mounting structures 5 are also provided with a reset member (not shown in the drawings). The reset member is connected to the rotating shaft 3. When the seat belt 15 is detached from the second winding structure 42, the rotation of the rotating shaft 3 drives the reset member to deform, and the reset of the reset member drives the rotating shaft 3 to rotate so that the second winding structure 42 winds up the seat belt 15. Further, in Embodiment 2, the sensor 11 can use the sensor 11 as in Embodiment 1, or an infrared sensor 11 can be provided. By setting the receiving plate of the first winding structure 41, the detachment length of the seat belt 15 is obtained by counting the number of rotations of the first winding structure 41. By setting the reset member, the reset member drives the rotating shaft 3 to rotate to make the second winding structure 42 wind up the seat belt 15, realizing the winding of the seat belt 15. On the one hand, it helps to make the seat belt 15 stressed during the working state of the seat belt 15, avoid the pendulum of the seat belt 15 dropping, and the seat belt 15 can be in a taut state and respond in time for dynamic adjustment. On the other hand, it helps to realize the automatic winding of the seat belt 15 at the end of the working state, avoid manual winding, and improve the efficiency of the seat belt 16 returning to the initial winding state.

[0053] It is clear to those skilled in the art that the reset member can be connected to the rotating shaft 3, or can be connected to the second winding structure 42 or the first winding structure 41, and this application does not limit this. At the same time, in the first embodiment, the setting position of the sensor 11 is not limited in this application, and can be set below, below, to the left, to the right, below the side, or above the side of the first winding structure 41.

[0054] In the first embodiment, the winding structure 4 can be arranged in any one of the following embodiments:

[0055] Example 1: Figure 1 , Figure 2 , Figure 3 As shown, the winding structure 4 includes two limit plates 43 arranged opposite to each other along the axis direction of the rotating shaft 3 and a plurality of winding members 44 connecting the two limit plates 43. The winding members 44 wind up the safety belt 15 and the lead-out rope 111. The plurality of winding members 44 are distributed in a single-layer regular polygon around the axis of the rotating shaft 3. The winding members 44 are detachably arranged on the two limit plates 43. By arranging a plurality of winding members to be distributed in a single-layer regular polygon around the axis of the rotating shaft 3, when the safety belt 15 and the lead-out rope 111 are wound and released, the safety belt 15 and the lead-out rope 111 can be guided and combed at multiple angles, effectively reducing the twisting and winding probability of the safety belt 15 and the lead-out rope 111, and avoiding local wear and strength reduction caused by twisting and winding. At the same time, the winding process of the first winding structure 41 and the second winding structure 42 is smoother, and the plurality of winding members 44 can effectively reduce the overall weight of the winding structure 4, making it easier for the sensor 11 winding member to wind up the lead-out rope 111. By setting the winding member 44 to be detachably arranged on the two limiting plates 43, the installation and removal of the winding structure 4 are facilitated, and the efficiency of subsequent maintenance is improved. In one embodiment, the winding member 44 of different diameters can be replaced to adapt to different lengths of the safety belt 15 or the lead-out cable 111, thereby improving the applicability of the winding structure 4. Moreover, the limiting plate 43 can effectively prevent the safety belt 15 or the lead-out cable 111 from escaping from the winding area during the winding process of the winding structure 4, so that the safety belt 15 or the lead-out cable 111 is wound and detached in an orderly manner, thereby improving the smoothness of the operation of the conversion device 2.

[0056] Furthermore, along the axis direction of the rotating shaft 3, the projection of the winding member 44 is within the projection range of the limiting plate 43. The limiting plate 43 constrains the safety belt 15 to prevent the safety belt 15 from escaping from the second winding structure 42 during the winding process.

[0057] Embodiment 2: Embodiment 2 is not shown in the figure, and is different from Embodiment 1 in that the plurality of windings are distributed in a single circle around the axis of the rotating shaft. Preferably, the limit plate is a disc structure to achieve high-precision rotation and reduce the deviation and swing of the rotation axis of the limit plate.

[0058] Embodiment 3: Embodiment 3 is not illustrated. The winding structure is a cylinder, and the cylinder is provided with a groove, and the groove includes groove walls oppositely arranged along the axis direction of the rotating shaft.

[0059] Embodiment 4: Embodiment 4 is not illustrated. The difference from Embodiment 1 is that the two limiting plates and the plurality of winding members are integrally formed.

[0060] Embodiment 5: Embodiment 5 is not illustrated. The winding member is fixed to the limiting plate by welding.

[0061] In Embodiment 1, the connection manner between the winding member 44 and the limiting plate 43 can be any one of the following specific examples:

[0062] Specific Example 1: As Figure 1 、 Figure 2 、 Figure 3 shown, the winding member 44 extends along the axis direction of the rotating shaft 3. The limiting plate 43 is provided with a plurality of positioning holes 431 and mounting holes 432 for cooperating with the rotating shaft 3. The plurality of positioning holes 431 are distributed in a multi-layer regular polygon around the axis of the rotating shaft 3. Along the axis direction of the rotating shaft 3, one end of the winding member 44 cooperates with the positioning hole 431 of the front limiting plate 43, and the other end cooperates with the positioning hole 431 of the rear limiting plate 43.

[0063] By providing the positioning holes 431, one end of the winding member 44 cooperates with the positioning hole 431 of the front limiting plate 43, and the other end cooperates with the positioning hole 431 of the rear limiting plate 43. The positioning holes 431 provide precise positioning for the winding member 44, and can also assist in installing the winding member, improving the installation accuracy of the winding member 44. By providing that the plurality of positioning holes 431 are distributed in a multi-layer regular polygon around the axis of the rotating shaft 3, the installation position of the winding member 44 can be adjusted. On the one hand, the practicability of the winding structure 4 is further improved, and the winding structure 4 can smoothly wind safety belts 15 or lead-out cables 111 of different lengths without replacement. On the other hand, the length requirement for the lead-out cable 111 is reduced, so that the lead-out cable 111 can be adapted to safety belts 15 of different lengths, improving the versatility of the conversion device 2.

[0064] Specific Example 2: Specific Example 2 is not illustrated. The winding member extends along the axis direction of the rotating shaft. The limiting plate is provided with a plurality of positioning protrusions and mounting holes for cooperating with the rotating shaft. The plurality of positioning protrusions are distributed in a multi-layer circumference around the axis of the rotating shaft. Along the axis direction of the rotating shaft, both ends of the winding member are provided with cooperation holes for cooperating with the positioning protrusions. One end of the winding member cooperates with the positioning hole of the front limiting plate, and the other end cooperates with the positioning hole of the rear limiting plate.

[0065] In Specific Example 1, the cooperation manner between the winding member and the positioning hole can be any one of the following examples:

[0066] In Specific Example 1, the cooperation manner between the winding member 44 and the positioning hole 431 can be any one of the following examples:

[0067] Example 1: As shown in Figure 1 , Figure 2 , Figure 3 , the winding member 44 is in clearance fit with the positioning hole 431. Further, the winding structure 4 is further provided with a fixing member 45 and a locking member 46. The fixing member 45 includes a limiting section 451 and a connecting section 452. The connecting section 452 passes through the positioning holes 431 of the two limiting plates 43 and is connected to the locking member 46. The limiting section 451 is used to abut against the limiting plate 43. By setting the winding member 44 in clearance fit with the positioning hole 431, the difficulty of installing, disassembling and repairing the winding member 44 is reduced, and it is convenient to replace and install the winding member 44. By setting the fixing member 45 and the locking member 46, the fixing member 45 includes a limiting section 451 and a connecting section 452. The connecting section 452 passes through the positioning holes 431 of the two limiting plates 43 and is connected to the locking member 46. The limiting section 451 is used to abut against the limiting plate 43. The fixing member 45 and the locking member 46 make the fit between the winding member 44 and the positioning hole 431 more stable, improve the bearing capacity of the winding member 44, and improve the stability of the winding member 44 winding the safety belt 15 or the safety belt 15 leaving the second winding structure 42.

[0068] Those skilled in the art can clearly understand that the connection manner between the connecting section 452 and the locking member 46 is not limited in this application. It can be that the connecting section 452 is threadedly connected to the locking member 46, or it can be set that the connecting section 452 is snap-connected to the locking member 46, etc.

[0069] In Example 1, the setting manner of the winding member can be any one of the following examples:

[0070] Example 1: As shown in Figure 1 , Figure 2 , Figure 3 , the winding member 44 includes a fitting section (not shown in the drawings) that is in clearance fit with the positioning hole 431 and a supporting section (not shown in the drawings) that connects the fitting section. The diameter of the fitting section is smaller than the diameter of the supporting section, and the supporting section abuts against the limiting plate 43.

[0071] Example 2: This Example 2 is not illustrated. The positioning hole is a blind hole, and the positioning hole can abut against the winding member.

[0072] Example 2: This Example 2 is not illustrated. The positioning hole has an internal thread, and the two ends of the winding member are provided with external threads, and the winding member is threadedly connected to the positioning hole.

[0073] Example 3: This Example 3 is not illustrated. The winding member is in interference fit with the positioning hole.

[0074] In Embodiment 1, the setting manner of the first winding structure 41 and the second winding structure 42 can be any one of the following embodiments:

[0075] Embodiment 6: As shown inFigure 1 , Figure 2 , Figure 3 As shown in Figure 1 , Figure 2 , and Figure 3 , the first winding structure 41 is located on one side of the second winding structure 42. The winding structure 4 includes a limiting plate 43 and a plurality of winding members 44. The plurality of winding members 44 are distributed in a single-layer regular polygon around the axis of the rotating shaft 3. The first winding structure 41 includes two limiting plates 43, which are the first limiting plate 433 and the second limiting plate 434. The second winding structure 42 includes one limiting plate 43, and the limiting plate 43 of the second winding structure 42 is the third limiting plate 435. The first limiting plate 433, the second limiting plate 434, and the third limiting plate 435 are arranged in sequence along the axis of the rotating shaft 3. The winding members 44 extend along the axis direction of the rotating shaft 3. One end of the winding member 44 of the second winding structure 42 is connected to the third limiting plate 435, and the other end is connected to the second limiting plate 434. One end of the winding member 44 of the first winding structure 41 is connected to the first limiting plate 433, and the other end is connected to the second limiting plate 434. By setting one end of the winding member 44 of the second winding structure 42 to be connected to the third limiting plate 435 and the other end to be connected to the second limiting plate 434, the setting of the second winding structure 42 is simplified, the weight of the second winding structure 42 and the first winding structure 41 is reduced, and at the same time, the space occupied by the second winding structure 42 is effectively reduced, improving the space utilization rate.

[0076] Embodiment 7: Not shown in this embodiment 7, the first winding structure and the second winding structure are arranged at intervals.

[0077] Embodiment 8: Not shown in this embodiment 8. Different from Embodiment 6, the plurality of winding members are distributed in a single circular array around the axis of the rotating shaft. Further, the plurality of winding members of the first winding structure are distributed in a circle with a radius of R1 around the axis of the rotating shaft, and the plurality of winding members of the second winding structure are distributed in a circle with a radius of R2 around the axis of the rotating shaft, where R2≥R1. The plurality of winding members of the second winding structure and the plurality of winding members of the first winding structure are arranged in a staggered manner. Those skilled in the art can clearly understand that when R2 = R1, two limiting plates can be set to extend along the axis direction of the rotating shaft, and the plurality of winding members of the second winding structure and the plurality of winding members of the first winding structure are arranged in a one-to-one correspondence along the axis direction of the rotating shaft. Further, the diameter of the winding member of the first winding structure is smaller than the diameter of the winding member of the second winding structure.

[0078] In Embodiment 6, the setting manner of the winding member 44 of the first winding structure 41 and the winding member 44 of the second winding structure 42 can be any one of the following specific examples:

[0079] Specific Example 3: As Figure 1 , Figure 2 , Figure 3As shown, the perpendicular distance between the axis of the winding member 44 of the first winding structure 41 and the axis of the rotating shaft 3 is L1, and the perpendicular distance between the axis of the winding member 44 of the second winding structure 42 and the axis of the rotating shaft 3 is L2, where L1 ≤ L2. The multiple winding members 44 of the second winding structure 42 and the multiple winding members 44 of the first winding structure 41 are arranged in a staggered manner. When the seat belt 15 is longer than the lead-out cable 111, by setting L1 ≤ L2, the lead-out cable 111 can detect the entire seat belt 15, reducing the requirements for the sensor 11, enabling the sensor 11 to be applicable to seat belts 15 of different lengths, and improving the applicability of the conversion device 2. By arranging the multiple winding members 44 of the second winding structure 42 and the multiple winding members 44 of the first winding structure 41 in a staggered manner, the stability of the system is further enhanced, avoiding vibration or shaking caused by the concentrated force on the second limiting plate 434 at the same position, and ensuring the smooth operation of the first winding structure 41 and the second winding structure 42 during operation.

[0080] Specific Example 4: Not shown in this specific example 4. The difference from specific example 3 is that the winding members of the second winding structure and the winding members of the first winding structure are arranged in sequence along the radial direction of the rotating shaft.

[0081] As the preferred embodiment 9 under Embodiment 1: Not shown in this embodiment 9. The winding structure includes two limiting plates oppositely arranged along the axis direction of the rotating shaft and multiple winding members connecting the two limiting plates. The limiting plates are provided with multiple positioning holes and mounting holes for cooperating with the rotating shaft. At least one of the multiple positioning holes provided on one limiting plate is provided with internal threads, and at least one winding member is threadedly connected to the positioning hole.

[0082] By setting at least one positioning hole 431 with internal threads and at least one winding member 44 threadedly connected to the positioning hole 431, the connection between the winding member 44 and the limiting plate 43 is realized through the winding member 44, further improving the connection strength between the winding member 44 and the limiting plate 43, enhancing the stability and reliability of the winding structure 4. At the same time, it is convenient to replace the winding member 44, reducing the later maintenance cost and difficulty.

[0083] This application also discloses a treadmill 1, using the conversion device 2 disclosed in this application, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8As shown in the figure, the treadmill 1 includes a base 12 and a column 13 provided on the base 12. The treadmill 1 further includes a running track 14. The column 13 is located in front of the running track 14. A receiving bin 131 is provided on the side of the column 13 facing away from the running track 14. The conversion device 2 is provided in the receiving bin 131. The sensor 11 is provided below the conversion device 2. A seat belt outlet 132 is provided on the side of the column 13 facing the running track 14. At least a part of the seat belt 15 extends out of the seat belt outlet 132.

[0084] In this application, by arranging the conversion device 2 in the receiving bin 131 of the column 13, the receiving bin 131 plays a protective role for the conversion device 2 inside the column 13, reducing the possibility of the conversion device 2 being affected by external collisions, dust or other sundries, prolonging the service life of the conversion device 2, and ensuring its stable operation. By arranging the sensor 11 below the conversion device 2, the sensor 11 can be effectively protected, reducing the risk of damage to the sensor 11 caused by external factors, thereby ensuring the accuracy and reliability of the monitoring of the state of the seat belt 15, providing more reliable information monitoring for the user. The sensor 11 is arranged below the conversion device 2, further optimizing the space utilization of the treadmill. Different functional components are arranged in an orderly manner within the limited space of the column 13, effectively improving the space utilization rate of the overall structure of the treadmill 1. In addition, the seat belt outlet 132 is arranged on the side of the column 13 facing the running track 14, and a part of the seat belt 15 extends out of the seat belt outlet 132, making the extending direction of the seat belt 15 directly face the user, facilitating the user to quickly and conveniently wear the seat belt 15, improving the convenience of use, and at the same time reducing the risk of entanglement that may be caused by improper arrangement of the seat belt 15, further improving the fluency of the use process. The conversion device 2 and the sensor 11 are centrally arranged in the receiving bin 131 of the column 13. During later maintenance, maintenance personnel can easily access these components, greatly improving the convenience of operation and maintenance.

[0085] As a preferred embodiment of the treadmill 1 disclosed in this application, as Figure 1 , Figure 2 , Figure 5 , Figure 6 shown, the conversion device 2 is arranged opposite to the seat belt outlet 132. The conversion device 2 includes a rotating shaft 3 rotatably arranged relative to the treadmill 1 and at least two winding structures 4 arranged on the rotating shaft 3. The winding structure 4 includes two limiting plates 43 arranged opposite to each other along the axis direction of the rotating shaft 3 and a plurality of winding members 44 connecting the two limiting plates 43. The axis of the rotating shaft 3 is along the horizontal direction towards the center position of the seat belt outlet 132.

[0086] By arranging the conversion device 2 relative to the seat belt outlet 132, the angle at which the seat belt 15 extends from the seat belt outlet 132 is optimized, and the smoothness of dynamic adjustment of the seat belt 15 during use is improved. By arranging the axis of the rotating shaft 3 to face the center of the seat belt outlet 132 in the horizontal direction, the seat belt 15 can be ensured to enter and exit accurately during the winding and releasing process, avoiding the twisting and jamming of the seat belt 15 due to position deviation, and improving the smoothness and reliability of the use of the seat belt 15.

[0087] As a preferred embodiment of the treadmill 1 disclosed in the present application, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the safety belt 15 includes a body-hugging section 153 for connecting with the user, a starting section 151 connected with the second winding structure 42, and an extension section 152 connecting the body-hugging section 153 and the starting section 151. The safety belt 15 also includes a stopper 154 provided at one end of the extension section 152 close to the body-hugging section 153, and the stopper 154 is used to abut against the column 13. Further, the length of the safety belt 15 is less than the horizontal distance from the end of the runway 14 to the connection position of the starting section 151 and the winding structure 4.

[0088] By providing a stopper 154, the stopper 154 is used to abut against the pillar 13, and the close fitting section 153 is placed outside the safety belt exit 132 through the stopper 154, so that the user can operate the close fitting section 153 conveniently. Since the stopper 154 abuts against the pillar 13, the close fitting section 153 can be in a relaxed state, and the user can better wear the close fitting section 153, thereby optimizing the user experience. By setting the length of the safety belt 15 to be smaller than the horizontal distance from the end of the runway 14 to the connection position between the starting section 151 and the second winding structure 42, on the one hand, the safety belt 15 can play the role of a limit reminder. Before the user reaches the end of the runway 14, the safety belt 15 applies force to the user through the close-fitting section 153 to remind the user that the user's current position is close to the end of the runway 14 and needs to adjust the position or stop running training. On the other hand, during the user's normal running process, the safety belt 15 will not cause excessive shaking and interfere with the movement due to being too long, and can accurately limit the user's position when the user approaches the end of the runway 14, so that the safety belt 15 is accurately adapted to the user's range of motion, providing effective constraints at critical moments to ensure the safety of the user.

[0089] The present application also discloses a treadmill speed regulation method, which is applicable to a treadmill disclosed in the present application. The control method includes:

[0090] Obtain the detachment information of the safety belt from the second winding structure through a sensor;

[0091] Determine the position information and status information of the user according to the detachment information;

[0092] Adjust the treadmill speed according to the position information and status information;

[0093] Obtaining the detachment information of the safety belt from the second winding structure through a sensor includes:

[0094] Obtain the length information of the safety belt detached from the second winding structure;

[0095] Obtain the rate information of the safety belt detached from the second winding structure;

[0096] Determining the position information and status information of the user according to the detachment information includes:

[0097] Establish a correspondence between the length information and the position information of the user on the runway;

[0098] Determine the position information of the user on the runway according to the length information obtained by the sensor;

[0099] The position information includes the front section of the runway, the middle section of the runway, and the rear section of the runway;

[0100] Obtain the standard rate range information of the safety belt detached from the second winding structure during the normal training process of the user;

[0101] Compare the rate information obtained by the sensor with the standard rate range information to determine the status information of the user, including:

[0102] The status information includes: abnormal, normal;

[0103] If the rate information is not within the standard rate range information, determine that the user's status is abnormal;

[0104] If the rate information is within the standard rate range information, determine that the user's status is normal;

[0105] Adjusting the treadmill speed according to the position information and status information includes:

[0106] If the status information of the user is abnormal, reduce the treadmill speed or brake the treadmill;

[0107] If the status information of the user is normal, when the user is located in the front section of the runway, increase the treadmill speed; when the user is located in the middle section of the runway, keep the treadmill speed; when the user is located in the rear section of the runway, reduce the treadmill speed.

[0108] The method disclosed in this application determines the status information of the user through the disengagement information, and more accurately determines the status of the user according to the length information and the speed information, improving the timeliness and accuracy of the treadmill speed adjustment and optimizing the user experience.

[0109] What is not described in this application can be realized by adopting or referring to the existing technology.

[0110] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0111] The above are only the embodiments of this application and are not intended to limit this application. For those skilled in the art, various changes and modifications can be made to this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A conversion device for a treadmill, characterized in that: The treadmill includes a safety belt and a sensor, the conversion device includes a rotating shaft rotatable relative to the treadmill and at least two winding structures arranged on the rotating shaft, the multiple winding structures are arranged in sequence along the axial direction of the rotating shaft, the multiple winding structures include at least a first winding structure for cooperating with the sensor detection and a second winding structure for winding the safety belt, the safety belt detaches from the second winding structure to drive the rotating shaft and the first winding structure to rotate, and the sensor obtains the detachment information of the safety belt by detecting the first winding structure.

2. A conversion device for a treadmill according to claim 1, characterized in that: The sensor includes a lead-out rope and a reel for reeling in the lead-out rope, the first reeling structure is connected to the lead-out rope, and the safety belt is separated from the second reeling structure to drive the rotating shaft to rotate, so that the first reeling structure reels in the lead-out rope.

3. A conversion device for a treadmill according to claim 2, characterized in that: The winding structure includes two limit plates arranged relatively to each other along the axial direction of the rotating shaft and a plurality of winding members connecting the two limit plates, the winding members wind up the safety belt and the lead-out rope, the plurality of winding members are distributed in a single-layer regular polygon around the axis of the rotating shaft, and the winding members are detachably arranged on the two limit plates.

4. A conversion device for a treadmill according to claim 3, characterized in that: The winding member extends along the axial direction of the rotating shaft, and the limiting plate is provided with a plurality of positioning holes and mounting holes cooperating with the rotating shaft. The plurality of positioning holes are distributed in a multi-layer regular polygon around the axis of the rotating shaft. Along the axial direction of the rotating shaft, one end of the winding member cooperates with the positioning hole of the limiting plate in front, and the other end cooperates with the positioning hole of the limiting plate at the rear.

5. The conversion device for a treadmill according to claim 4, characterized in that: The winding member is loosely matched with the positioning hole, and the winding structure is also provided with a fixing member and a locking member. The fixing member includes a limiting section and a connecting section. The connecting section passes through the positioning holes of the two limiting plates and is connected to the locking member. The limiting section is used to abut against the limiting plates.

6. The conversion device for a treadmill according to claim 2, characterized in that: The first winding structure is located on one side of the second winding structure, the winding structure includes a limit plate and a plurality of winding members, the plurality of winding members are distributed in a single-layer regular polygon around the axis of the rotating shaft, the first winding structure includes two limit plates, the two limit plates are a first limit plate and a second limit plate, the second winding structure includes one limit plate, the limit plate of the second winding structure is a third limit plate, the first limit plate, the second limit plate and the third limit plate are arranged in sequence along the axis of the rotating shaft, the winding member extends along the axis direction of the rotating shaft, one end of the winding member of the second winding structure is connected to the third limit plate, and the other end is connected to the second limit plate, one end of the winding member of the first winding structure is connected to the first limit plate, and the other end is connected to the second limit plate.

7. A conversion device for a treadmill according to claim 6, characterized in that: The vertical distance between the axis of the winding member of the first winding structure and the axis of the rotating shaft is L1, the vertical distance between the axis of the winding member of the second winding structure and the axis of the rotating shaft is L2, L1≤L2, and the multiple winding members of the second winding structure are staggered with the multiple winding members of the first winding structure.

8. The conversion device for a treadmill according to claim 2, characterized in that: The winding structure includes two limit plates arranged relatively to each other along the axial direction of the rotating shaft and a plurality of winding members connecting the two limit plates, the limit plates are provided with a plurality of positioning holes and mounting holes cooperating with the rotating shaft, at least one of the plurality of positioning holes arranged in one of the limit plates is provided with an internal thread, and at least one winding member is threadedly connected to the positioning hole.

9. The conversion device for a treadmill according to claim 1, characterized in that: The conversion device also includes mounting structures arranged at both ends of the rotating shaft, the rotating shaft can be rotatably arranged on the mounting structure, the mounting structure is fixed at the mounting position, the mounting structure is also provided with a reset member, the reset member is connected to the rotating shaft, the safety belt is separated from the second winding structure, the rotation of the rotating shaft drives the reset member to deform, and the reset member resets and drives the rotating shaft to rotate so that the second winding structure reels up the safety belt.

10. A treadmill, using the conversion device according to claim 1, characterized in that: The treadmill includes a base and a column arranged on the base, and the treadmill also includes a runway. The column is located in front of the runway, and a storage bin is provided on the side of the column facing away from the runway. The conversion device is arranged in the storage bin, and the sensor is arranged below the conversion device. A safety belt outlet is provided on the side of the column facing the runway, and the safety belt at least partially extends out of the safety belt outlet.

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