Unstable running training device

Abstract

This application discloses an unstable running training device, comprising: a base; a connecting seat; a first drive mechanism; a second drive mechanism; a running mechanism including a frame, a front roller, a rear roller, a third drive mechanism, and a circular running belt. The frame is fixedly connected to the connecting seat, the front roller and the rear roller are rotatably connected to the frame respectively, and the circular running belt surrounds the front roller and the rear roller. The third drive mechanism is mounted on the frame and drives the front roller to rotate. A follower mechanism includes a follower block, which is rotatably connected to the base about a first axis and rotatably connected to the connecting seat about a second axis. The first axis is perpendicular to the second axis. The first and second drive mechanisms drive the connecting seat to perform a combined motion of rotating about the first axis and rotating about the second axis. Users can combine running training with unstable training to improve training efficiency.

Description

Technical Field

[0001] This invention generally relates to the field of fitness equipment, specifically to the field of unstable training, and particularly to an unstable running training device. Background Technology

[0002] Core strength training refers to training the muscles of the core region (mainly the abdominal, lower back, and pelvic muscles) and their deep, smaller muscles to improve strength, stability, and balance. It differs from traditional abdominal strength training, as it aims to develop and improve both the overall prime movers and local stabilizing muscles of the core region. The goal of core strength training is to coordinate the entire body, ensuring that the core muscles stabilize the body and transmit energy during movements. One common core strength training method is instability training.

[0003] The treadmills of existing running training devices are fixed, and users can only use the running training device for running training, but cannot combine running training with unstable training. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an unstable running training device that combines running training and unstable training.

[0005] In a first aspect, the unstable running training device of the present invention comprises:

[0006] Base;

[0007] Connector;

[0008] A first drive mechanism is disposed on the base, and the first drive mechanism drives the connecting seat to move through a first crank-connecting rod mechanism;

[0009] The second drive mechanism is disposed on the base, and the second drive mechanism drives the connecting seat to move through the second crank-connecting rod mechanism;

[0010] A running mechanism includes a frame, a front roller, a rear roller, a third drive mechanism, and a circular running belt. The frame is fixedly connected to a connecting seat. The front roller and the rear roller are rotatably connected to the frame, respectively. The circular running belt surrounds the front roller and the rear roller. The third drive mechanism is mounted on the frame and drives the front roller to rotate.

[0011] The follower mechanism includes a follower block, which is rotatably connected to the base about a first axis and to the connecting seat about a second axis, wherein the first axis and the second axis are perpendicular.

[0012] The first driving mechanism and the second driving mechanism drive the connecting seat to perform a combined motion of rotating about the first axis and rotating about the second axis.

[0013] According to the technical solution provided in the embodiments of this application, the front roller is driven to rotate by the third drive mechanism, which drives the circular running belt to move, and the user can run on the circular running belt. During the user's running training, the first drive mechanism and the second drive mechanism can drive the connecting seat to move, and the connecting seat drives the frame to move, so that the circular running belt deviates from the horizontal plane. The user can combine running training with unstable training, which can improve training efficiency. Attached Figure Description

[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the unstable running training device according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the hidden running mechanism in an embodiment of the unstable running training device of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the unstable running training device and the follower block according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the unstable running training device and the follower block according to an embodiment of the present invention;

[0019] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0020] Figure 6 for Figure 4 A magnified view of a section at point B in the middle;

[0021] Figure 7 This is a schematic diagram of the structure of the unstable running training device and the follower block according to an embodiment of the present invention;

[0022] Figure 8 for Figure 7 A magnified view of a section at point C;

[0023] Figure 9 This is a schematic diagram of the structure of the base of the unstable running training device according to an embodiment of the present invention;

[0024] Figure 10 This is a schematic diagram of the exploded structure of the hidden circular running belt in an embodiment of the unstable running training device of the present invention.

[0025] Figure 11 for Figure 10 A magnified view of a section at point D;

[0026] Figure 12 for Figure 10 A magnified view of a section at point E in the middle. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Please refer to Figures 1-12 The present invention discloses an unstable running training device, comprising: a base 10; a connecting seat 20; a first drive mechanism 30 disposed on the base 10, the first drive mechanism 30 driving the connecting seat 20 to move via a first crank-connecting rod mechanism 40; a second drive mechanism 50 disposed on the base 10, the second drive mechanism 50 driving the connecting seat 20 to move via a second crank-connecting rod mechanism 60; and a running mechanism 80 comprising a frame 810, a front roller 820, a rear roller 830, a third drive mechanism 840, and a circular running belt 850, wherein the frame 810 is fixedly connected to the connecting seat 20, and the front roller 820 and rear roller 850 are... 830 is rotatably connected to the frame 810 respectively. The annular running belt 850 surrounds the front roller 820 and the rear roller 830. The third drive mechanism 840 is mounted on the frame 810 and drives the front roller 820 to rotate. There is also a follower mechanism 70, which includes a follower block 710. The follower block 710 is rotatably connected to the base 10 around the first axis 720 and to the connecting seat 20 around the second axis 730. The first axis is perpendicular to the second axis. The first drive mechanism 30 and the second drive mechanism 50 drive the connecting seat 20 to perform a compound motion of rotating around the first axis 720 and rotating around the second axis 730.

[0030] In an embodiment of the present invention, the base is placed on the ground. It may be, but is not limited to, having a plurality of support pads 141 on the side of the base facing the ground. The position of the support pads 141 and the base can be adjusted so that the base remains level, thereby reducing the requirements for the flatness of the ground.

[0031] The connecting seat is used to connect to the support platform. The first drive mechanism and the second drive mechanism drive the connecting seat to move, thereby driving the support platform to move. When the user performs unstable training on the support platform, the connecting seat can support the support platform and drive its movement.

[0032] The follower mechanism includes a follower block, which is rotatably connected to the base around a first axis and to the connecting seat around a second axis. The first and second axes are perpendicular, allowing the connecting seat to perform a combined motion relative to the base, rotating around both the first and second axes. Specifically, the connecting seat can rotate relative to the base around the first and second axes, or perform a combined motion of both, giving it a large range of motion relative to the base. This achieves a spherical connection-like effect of universal rotation, increasing the uncertainty of the connecting seat's movement and ensuring the effectiveness of unstable training. Furthermore, the follower block connects the connecting seat and the base, making the follower mechanism compact and reducing its size, facilitating the arrangement of unstable running training devices.

[0033] The first drive mechanism is mounted on the base, and may be, but is not limited to, fixed to the base. The base provides support and fixation for the first drive mechanism, ensuring its stability. The first drive mechanism drives the connecting seat to move via a first crank-connecting rod mechanism, and may be, but is not limited to, driving the connection between the first crank-connecting rod mechanism and the connecting seat to reciprocate vertically, thereby moving the connecting seat.

[0034] The second drive mechanism is mounted on the base, and may be, but is not limited to, fixed to the base. The base provides support and fixation for the second drive mechanism, ensuring its stability. The second drive mechanism drives the connecting seat to move via the second crank-connecting rod mechanism. Alternatively, the second drive mechanism may drive the connection between the second crank-connecting rod mechanism and the connecting seat to reciprocate vertically, thereby moving the connecting seat.

[0035] The running mechanism includes a frame, a front roller, a rear roller, a third drive mechanism, and a circular running belt. The front and rear rollers are rotatably connected to the frame. The third drive mechanism drives the front roller to rotate, which in turn moves the circular running belt and the rear roller, allowing the user to run on the circular running belt. The third drive mechanism can be a third motor, which drives the front roller to rotate. The frame is fixedly connected to a connecting base. While the third drive mechanism is moving the circular running belt, the first and second drive mechanisms drive the connecting base to perform a combined motion of rotating around a first axis and around a second axis, causing the frame and the circular running belt to deviate from the horizontal plane. Users can combine running training with unstable training to improve training efficiency. Alternatively, users can use only the first and second drive mechanisms to drive the connecting base and frame, without the third drive mechanism driving the circular running belt, for unstable training alone. Users can also use only the third drive mechanism to drive the circular running belt, without the first and second drive mechanisms driving the connecting base and frame, for running training alone. This expands the training functionality of the unstable running training device and can meet various training needs of users.

[0036] Furthermore, the frame 810 includes a first side frame 811, a second side frame 812, and a connecting frame 813. One end of the front roller 820 is rotatably connected to the first side frame 811, and the other end of the front roller 820 is rotatably connected to the second side frame 812. One end of the rear roller 830 is rotatably connected to the first side frame 811, and the other end of the rear roller 830 is rotatably connected to the second side frame 812. One side of the connecting frame 813 is fixedly connected to the side of the first side frame 811 facing the connecting seat 20, and the other side of the connecting frame 813 is fixedly connected to the side of the second side frame 812 facing the connecting seat 20. The connecting frame 813 is directly opposite the connecting seat 20 and fixedly connected to the connecting seat 20.

[0037] In embodiments of the present invention, the connecting frame and the connecting seat are fixedly connected. By providing the connecting frame, the connection between the frame and the connecting seat can be facilitated, and the local strength of the frame can be increased, ensuring the reliability of the connection between the frame and the connecting seat. The connecting frame is provided on the side of the first side frame facing the connecting seat and the side of the second side frame facing the connecting seat, which can increase the distance between the circular running belt and the connecting seat and avoid motion interference between the circular running belt and the connecting seat.

[0038] The first and second side frames are rotatably connected to both ends of the front roller, and the first and second side frames are rotatably connected to both ends of the rear roller, ensuring the reliability of the frame supporting the front and rear rollers.

[0039] Furthermore, a plurality of first pads are provided between the first side frame 811 and the connecting frame 813, and a plurality of second pads are provided between the second side frame 812 and the connecting frame 813.

[0040] In an embodiment of the present invention, by setting a first pad and a second pad, the distance between the circular running belt and the connecting seat is further increased, thereby avoiding motion interference between the circular running belt and the connecting seat.

[0041] Furthermore, the first side frame 811 includes a first support base 8111, a first support top seat 8113, and a first support beam 8116. The first support base 8111 and the first support top seat 8113 are located on both sides of the first support beam 8116. The second side frame 812 includes a second support base 8121, a second support top seat 8123, and a second support beam 8126. The second support base 8121 and the second support top seat 8123 are located on both sides of the second support beam 8126. The first support beam 8116 and the second support beam 8126 are respectively fixedly connected to the connecting frame 813.

[0042] In an embodiment of the invention, the first support beam supports the first support top seat, ensuring the overall strength of the first side frame. The second support beam supports the second support top seat, ensuring the overall strength of the second side frame. During unstable running training, the user can stand on the first and second support top seats to rest, thus ensuring the safety of the unstable running training. The first and second support beams are fixedly connected to the connecting frame, ensuring the overall strength of the frame.

[0043] Furthermore, a plurality of first support blocks 8112 are fixedly connected to the first support base 8111, and a plurality of second support blocks 8114 are provided between the first support beam 8116 and the first support top seat 8113. The side of the second support block 8114 extending out of the gap between the first support beam 8116 and the first support top seat 8113 faces the first support block 8112. A plurality of third support blocks 8122 are fixedly connected to the second support base 8121, and a plurality of fourth support blocks 8124 are provided between the second support beam 8126 and the second support top seat 8123. The side of the third support block 8122 extending out of the gap between the second support beam 8126 and the second support top seat 8123 faces the fourth support block 8124.

[0044] In an embodiment of the present invention, a certain gap can be provided between the first support block and the second support block. When a user stands on the first support top seat to rest, the second support block will move closer to the first support block until the first support block abuts against the second support block, preventing further deformation of the first support top seat and ensuring the reliability of the first support top seat in supporting the user. The first support block and the second support block have a one-to-one correspondence. The second support block is located between the first support beam and the first support top seat, which can further improve the strength of the first support top seat.

[0045] A gap can be set between the third and fourth support blocks. When a user stands on the second support top seat to rest, the fourth support block will move closer to the third support block until the third support block abuts against the fourth support block, preventing further deformation of the second support top seat and ensuring its reliable support for the user. The third and fourth support blocks have a one-to-one correspondence. The fourth support block is located between the second support beam and the second support top seat, further enhancing the strength of the second support top seat.

[0046] Furthermore, a first buffer pad 8115 is provided between the second support block 8114 and the first support top seat 8113, and a second buffer pad 8125 is provided between the fourth support block 8124 and the second support top seat 8123.

[0047] In embodiments of the present invention, the first buffer pad can cushion the collision between the second support block and the first support top seat, ensuring the reliability of the second support block supporting the first support top seat. It can also prevent noise generated by the collision between the second support block and the first support top seat.

[0048] The second buffer pad cushions the impact between the fourth support block and the second support top seat, ensuring the reliability of the fourth support block supporting the second support top seat. It also prevents noise generated by the collision between the fourth support block and the second support top seat.

[0049] Furthermore, the base 10 is fixedly connected to a first column 910 and a second column 920, with the side of the first column 910 away from the base 10 and the side of the second column 920 away from the base 10 being fixedly connected.

[0050] In embodiments of the present invention, by providing a first column and a second column, the torsional resistance of the unstable running training device can be further increased.

[0051] Furthermore, the side of the first column 910 away from the base 10 and the side of the second column 920 away from the base 10 extend above the circular running belt 850. The first column 910 and the second column 920 are respectively fixedly connected to the handrail frame 930. Handrails 931 are respectively provided on both sides of the handrail frame 930. The first column 910 and the second column 920 are respectively fixedly connected to the fixing frame 940. The fixing frame 940 is fixedly connected to the display 950.

[0052] In an embodiment of the invention, the first and second uprights are fixedly connected to the handrail frame, and handrails are provided on both sides of the handrail frame. When resting, the user can hold onto the handrails with both hands to support their body and allow their feet to leave the circular running belt. The fixed frame is equipped with a display screen that can display information related to unstable running training, such as running speed, the direction and speed of movement of the connecting seat, etc. The user can adjust the above information to meet their own training needs.

[0053] Furthermore, the base 10 is provided with a first fixed seat 110, the first fixed seat 110 is provided with a first support seat 111, the follower block 710 is rotatably connected to the first support seat 111 through the first rotating shaft 711, the connecting seat 20 is provided with a second fixed seat 120, the second fixed seat 120 is provided with a second support seat 121, and the follower block 710 is rotatably connected to the second support seat 121 through the second rotating shaft 714.

[0054] In embodiments of the present invention, the base is provided with a first fixed seat, which may, but is not limited to, be fixedly connected to the base. The first fixed seat includes multiple second fixed plates 113 arranged horizontally and vertically to ensure the strength of the first fixed seat. The first fixed seat is provided with a first support seat, which may, but is not limited to, be detachably fixed to the first fixed seat by a first bolt 112, facilitating the assembly and disassembly of the first support seat from the first fixed seat. The follower block is rotatably connected to the first support seat by a first rotating shaft. The first fixed seat may, but is not limited to, have two first support seats, each of which is rotatably connected to the follower block by a first rotating shaft. Both first rotating shafts are centered on a first axis and are located on both sides of the follower block, ensuring that the follower block is subjected to balanced forces and guaranteeing the reliability of the rotatable connection between the follower block and the base.

[0055] The base is provided with a second fixed seat, which may include, but is not limited to, a second fixed seat fixedly connected to the base. The second fixed seat includes multiple horizontally and vertically arranged third fixed plates 123 to ensure the strength of the second fixed seat. The second fixed seat is provided with a second support seat, which may include, but is not limited to, a second support seat detachably fixed to the second fixed seat by a second bolt, facilitating the assembly and disassembly of the second support seat from the second fixed seat. The follower block is rotatably connected to the second support seat via a second rotating shaft. The second fixed seat may include two second support seats, each of which is rotatably connected to the follower block via a second rotating shaft. Both second rotating shafts are centered on a second axis and are located on both sides of the follower block, ensuring balanced force on the follower block and guaranteeing the reliability of the rotatable connection between the follower block and the base.

[0056] Furthermore, one end of the first rotating shaft 711 is fixedly connected to the follower block 710, and the other end of the first rotating shaft 711 is rotatably connected to the first support seat 111 through the first radial joint bearing. One end of the second rotating shaft 714 is fixedly connected to the follower block 710, and the other end of the second rotating shaft 714 is rotatably connected to the second support seat 121 through the second radial joint bearing.

[0057] In embodiments of the present invention, one end of the first rotating shaft is fixedly connected to the follower block. This connection may include, but is not limited to, a first protrusion on the end of the first rotating shaft near the follower block, and a first groove on the side of the follower block facing the first rotating shaft. The first protrusion extends into the first groove, thereby increasing the connection strength between the first rotating shaft and the follower block. Alternatively, the first rotating shaft and the follower block can be welded together to further ensure the connection strength. The first rotating shaft is rotatably connected to the first support seat via a first radial spherical bearing. Besides enabling the rotatable connection between the first rotating shaft and the first support seat (i.e., the rotatable connection between the follower block and the base around the first axis), the first radial spherical bearing also enables the first rotating shaft to rotate relative to the first support seat, deviating from the first rotating shaft. The first radial spherical bearing can adjust its angle within a wide range, improving the flexibility and reliability of mechanical operation and adapting to installation errors, deformation, deviations, etc. During actual installation, a retaining ring can be installed between the first rotating shaft and the inner ring of the first radial spherical bearing to eliminate the gap between them and ensure smooth movement of the connecting seat.

[0058] One end of the second rotating shaft is fixedly connected to the follower block. It is possible, but not limited to, that the end of the second rotating shaft near the follower block has a second protrusion, and the side of the follower block facing the second rotating shaft has a second groove. The second protrusion extends into the second groove, thereby improving the connection strength between the second rotating shaft and the follower block. Alternatively, the second rotating shaft and the follower block can be welded together to further ensure the connection strength. The second rotating shaft is rotatably connected to the second support seat via a second radial spherical bearing. Besides enabling the rotatable connection between the second rotating shaft and the second support seat (i.e., the rotatable connection between the follower block and the base around the second axis), the second radial spherical bearing also allows the second rotating shaft to rotate relative to the second support seat, deviating from the second rotating shaft. The second radial spherical bearing can adjust its angle within a wide range, improving the flexibility and reliability of mechanical operation and adapting to installation errors, deformation, and deviations. In actual installation, a retaining ring can be installed between the second rotating shaft and the inner ring of the second radial spherical bearing to eliminate the gap between them and ensure smooth movement of the connecting seat.

[0059] Furthermore, the first crank-connecting rod mechanism 40 includes a first crank 410 and a first connecting rod 420 rotatably connected, the first connecting rod 420 being rotatably connected to the connecting seat 20, and the first drive mechanism 30 driving the first crank 410 to rotate. The second crank-connecting rod mechanism 60 includes a second crank 610 and a second connecting rod 620 rotatably connected, the second connecting rod 620 being rotatably connected to the connecting seat 20, and the second drive mechanism 50 driving the second crank 610 to rotate.

[0060] In an embodiment of the present invention, the first crank-connecting rod mechanism includes a first crank and a first connecting rod. The first crank is detachably fixedly connected to the third shaft of the first drive mechanism. Possibly, but not limited to, the first crank has a first through hole through which the third shaft passes. The third shaft is fitted with a first bushing 331, and the end of the third shaft is fixed with a first baffle 333 by a third bolt 332. The first baffle and the first bushing are located on both sides of the first crank, and the outer diameters of both the first baffle and the first bushing are larger than the inner diameter of the first through hole. Under the pressure of the third bolt, the first baffle and the first bushing can clamp the first crank, thus limiting its movement and preventing it from detaching from the third shaft. Alternatively, the third shaft and the first crank, as well as the third shaft and the first bushing, can be connected by a key to transmit torque, allowing the first crank and the first bushing to rotate with the third shaft. The first crank end has a first opening 412 extending through a first through hole, dividing the first crank end into a first clamping part 413 and a second clamping part 414. A fourth bolt 415 is provided at the first crank end, passing through the first clamping part and screwed onto the second clamping part. After the third shaft is passed through the first through hole, tightening the fourth bolt brings the first and second clamping parts closer together, clamping the third shaft and thus fixing the first crank and the third shaft.

[0061] The second crank-connecting rod mechanism includes a second crank and a second connecting rod. The second crank is detachably fixedly connected to the fourth shaft of the second drive mechanism. Possibly, but not limited to, the second crank has a second through hole through which the fourth shaft passes. The fourth shaft is fitted with a second bushing 531, and the end of the fourth shaft is fixed with a second baffle 533 by a fifth bolt 532. The second baffle and the second bushing are located on opposite sides of the second crank, and the outer diameters of both are larger than the inner diameter of the second through hole. Under the pressure of the fifth bolt, the second baffle and the second bushing can clamp the second crank, limiting its movement and preventing it from detaching from the third shaft. Alternatively, the fourth shaft and the second crank, as well as the fourth shaft and the second bushing, can be connected by a key to transmit torque, allowing the second crank and the second bushing to rotate with the fourth shaft. The end of the second crank has a second opening 612 extending through the second through hole, dividing the end of the second crank into a third clamping portion 613 and a fourth clamping portion 614. The second crank is provided with a sixth bolt 615 at its end. The sixth bolt passes through the third clamping part and is screwed to the fourth clamping part. After the fourth shaft passes through the second through hole, the sixth bolt is tightened to bring the third clamping part and the fourth clamping part closer together and clamp the fourth shaft, thereby fixing the second crank and the fourth shaft.

[0062] The first crank is rotatably connected to the first connecting rod, and the first crank is fixedly connected to a fifth rotating shaft 421, which is rotatably connected to the first connecting rod. Alternatively, but not limited to, the fifth rotating shaft may be rotatably connected to the first connecting rod via a third radial spherical bearing. This third radial spherical bearing not only enables the rotatable connection between the fifth rotating shaft and the first connecting rod but also allows the fifth rotating shaft to rotate relative to the first connecting rod off-axis. The third radial spherical bearing can adjust its angle within a wide range, improving the flexibility and reliability of mechanical operation and adapting to installation errors, deformation, and deviations. A third baffle 423 is fixed to the end of the fifth rotating shaft via a seventh bolt 422. The third baffle abuts against the inner ring of the third radial spherical bearing, preventing separation between the fifth rotating shaft and the bearing and ensuring the reliability of the rotatable connection between the first crank and the second connecting rod.

[0063] The second crank is rotatably connected to the second connecting rod. A sixth rotating shaft 621 is fixedly connected to the second crank, and the sixth rotating shaft is rotatably connected to the second connecting rod. Alternatively, but not limited to, the sixth rotating shaft may be rotatably connected to the second connecting rod via a fourth radial spherical bearing. This fourth radial spherical bearing not only enables the rotatable connection between the sixth rotating shaft and the second connecting rod but also allows the sixth rotating shaft to rotate relative to the second connecting rod off-axis. The fourth radial spherical bearing can adjust its angle within a wide range, improving the flexibility and reliability of mechanical operation and adapting to installation errors, deformation, and deviations. A fourth stop 623 is fixed to the end of the sixth rotating shaft via an eighth bolt 622. The fourth stop abuts against the inner ring of the fourth radial spherical bearing, preventing separation between the sixth rotating shaft and the bearing and ensuring the reliability of the rotatable connection between the second crank and the second connecting rod.

[0064] Furthermore, the first drive mechanism 30 includes a first motor 310, a first reducer 320, and a third rotating shaft. The first motor 310 drives the third rotating shaft to rotate through the first reducer 320. The third rotating shaft is connected to the first crank-connecting rod mechanism 40. The second drive mechanism 50 includes a second motor 510, a second reducer 520, and a fourth rotating shaft. The second motor 510 drives the fourth rotating shaft to rotate through the second reducer 520. The fourth rotating shaft is connected to the second crank-connecting rod mechanism 60.

[0065] In an embodiment of the present invention, a first motor drives a third rotating shaft to rotate via a first reducer. The first reducer can reduce the speed while increasing the output torque. The rotation of the third rotating shaft drives the connecting seat to move via a first crank-connecting rod mechanism.

[0066] The second motor drives the fourth shaft to rotate via a second reducer, which reduces the speed while increasing the output torque. The rotation of the fourth shaft drives the connecting seat to move via a second crank-connecting rod mechanism.

[0067] Furthermore, the base 10 is provided with a first fixing plate 130, a third support 131, and a fourth support 132. The end of the first reducer 320 away from the first motor 310 is fixedly connected to the first fixing plate 130. The first reducer 320 is detachably fixedly connected to the third support 131. The first reducer 320 is fitted with a first buffer sleeve 321, which is located between the third support 131 and the first reducer 320. The end of the second reducer 520 away from the second motor 510 is fixedly connected to the first fixing plate 130. The second reducer 520 is detachably fixedly connected to the fourth support 132. The second reducer 520 is fitted with a second buffer sleeve 521, which is located between the fourth support 132 and the second reducer 520.

[0068] In embodiments of the present invention, the third support base can support and fix the first reducer. The first reducer may be, but is not limited to, fixed to the third support base by a first clamp 322. One end of the first reducer near the first fixed plate is fixed to the first fixed plate. The first motor is fixedly connected to the first reducer, thereby fixing the first drive mechanism to the base. A first buffer sleeve is fitted onto the first reducer. The first buffer sleeve is located between the third support base and the first reducer, and between the first clamp and the first reducer. The first buffer sleeve can provide cushioning and shock absorption, preventing noise from collision between the first reducer and the third support base when the first drive mechanism operates. Figure 3 , 4 In section 7, to facilitate viewing the structure of the first buffer sleeve, the first clamp is moved away from the third support.

[0069] The fourth support base can support and fix the second reducer, and may, but is not limited to, the second reducer being fixed to the fourth support base by the second clamp 522. The end of the second reducer closest to the first fixed plate is fixed to the first fixed plate. The second motor is fixedly connected to the second reducer, thus fixing the second drive mechanism to the base. The second reducer is fitted with a second buffer sleeve, located between the fourth support base and the second reducer, and between the second clamp and the second reducer. The second buffer sleeve provides cushioning and shock absorption, preventing noise from collision between the second reducer and the fourth support base when the second drive mechanism operates. Figure 3 , 4 In section 7, to facilitate viewing the structure of the second buffer sleeve, the second clamp is moved away from the fourth support.

[0070] Furthermore, the follower block 710 is located in the middle of the base 10.

[0071] In embodiments of the present invention, when the first and second drive mechanisms drive the connecting seat to move, the range of motion of the connecting seat relative to the follower block is relatively small. When the user performs unstable training, they typically stand in the middle of the connecting seat, meaning their center of gravity is above the follower block. This helps the user maintain balance during unstable training and reduces the possibility of sports injuries.

[0072] Furthermore, the base 10 includes: a first support member 140, which is arranged along the length direction of the base 10; a second support member 150, which is arranged along the length direction of the base 10; a first base plate 160, which is located between the first support member 140 and the second support member 150; a first drive mechanism 30, a second drive mechanism 50 and a follower mechanism 70 are all located above the first base plate 160; and a plurality of first reinforcing ribs 170, which are arranged horizontally and vertically on the first base plate 160.

[0073] In embodiments of the present invention, the first support member and the second support member are arranged parallel to each other and spaced apart. The first support member and the second support member are respectively fixedly connected to the first base plate. It is possible, but not limited to, that the end of the first base plate near the first support member is bent to form a first bent portion 161, which partially covers the first support member, thereby increasing the connection strength between the first support member and the first base plate. The end of the first base plate near the second support member is bent to form a second bent portion 162, which partially covers the second support member, further increasing the connection strength between the second support member and the first base plate.

[0074] The first drive mechanism, the second drive mechanism, and the follower mechanism are all located above the first base plate. The first base plate can support the first drive mechanism, the second drive mechanism, and the follower mechanism, ensuring the reliability of the connection between the first drive mechanism, the second drive mechanism, and the follower mechanism and the base.

[0075] Multiple first reinforcing ribs are arranged horizontally and vertically on the first base plate, which can further improve the overall strength of the first base plate and ensure the reliability of the first base plate in supporting the first drive mechanism, the second drive mechanism and the follower mechanism.

[0076] An accordion cover can be installed between the base and the connecting seat. The accordion cover can cover the internal structure of the unstable running training device and prevent the internal structure from being exposed.

[0077] Furthermore, the end of the first crank-connecting rod mechanism 40 away from the first drive mechanism 30 is rotatably connected to the connecting seat 20, and the end of the second crank-connecting rod mechanism 60 away from the second drive mechanism 50 is rotatably connected to the connecting seat 20.

[0078] In an embodiment of the present invention, the connecting seat is provided with a first connecting block 260, and a seventh rotating shaft 261 is fixedly connected to the first connecting block. The seventh rotating shaft and the first connecting rod are rotatably connected via a fifth radial spherical bearing. The fifth radial spherical bearing not only enables the rotatable connection between the seventh rotating shaft and the first connecting rod, but also allows the seventh rotating shaft to rotate relative to the first connecting rod off-axis. The fifth radial spherical bearing can adjust its angle within a wide range, improving the flexibility and reliability of mechanical operation and adapting to installation errors, deformation, deviations, etc. A fifth baffle 263 is fixed to the end of the seventh rotating shaft by a ninth bolt 262. The fifth baffle abuts against the inner ring of the fifth radial spherical bearing, preventing the seventh rotating shaft from separating from the fifth radial spherical bearing and ensuring the reliability of the rotatable connection between the first connecting block 260 and the first connecting rod.

[0079] The connecting seat is equipped with a second connecting block 270, which is fixedly connected to an eighth rotating shaft 271. The eighth rotating shaft and the second connecting rod are rotatably connected via a sixth radial spherical bearing. The sixth radial spherical bearing not only enables the rotatable connection between the eighth rotating shaft and the second connecting rod, but also allows the eighth rotating shaft to rotate relative to the second connecting rod off-axis. The sixth radial spherical bearing can adjust its angle within a wide range, improving the flexibility and reliability of mechanical operation and adapting to installation errors, deformation, and deviations. A sixth stop plate 273 is fixed to the end of the eighth rotating shaft via a tenth bolt 272. The sixth stop plate abuts against the inner ring of the sixth radial spherical bearing, preventing separation between the eighth rotating shaft and the sixth radial spherical bearing and ensuring the reliability of the rotatable connection between the second connecting block and the second connecting rod.

[0080] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An unstable running training device, characterized in that, The unstable running training device comprises: a base; a connecting seat; a first driving mechanism fixed on the base, the first driving mechanism driving the connecting seat to move through a first crank linkage mechanism; a second driving mechanism fixed on the base, the second driving mechanism driving the connecting seat to move through a second crank linkage mechanism; a running mechanism comprising a rack, a front roller, a rear roller, a third driving mechanism and an endless running belt, the rack being fixedly connected to the connecting seat, the front roller and the rear roller being rotatably connected to the rack respectively, the endless running belt being wound around the front roller and the rear roller, the third driving mechanism being arranged on the rack, the third driving mechanism driving the front roller to rotate; and a following mechanism comprising a following block, the following block being rotatably connected to the base about a first axis, the following block being rotatably connected to the connecting seat about a second axis, the first axis being perpendicular to the second axis, the first driving mechanism and the second driving mechanism driving the connecting seat to make a compound motion of rotation about the first axis and rotation about the second axis, the first crank linkage mechanism comprising a rotatably connected first crank and a first connecting rod, the first connecting rod being rotatably connected to the connecting seat, the first driving mechanism driving the first crank to rotate, the first crank being provided with a first through hole through which a third rotating shaft passes, the third rotating shaft being sleeved with a first shaft sleeve, an end of the third rotating shaft being fixed with a first baffle through a third bolt, the first baffle and the first shaft sleeve being located on two sides of the first crank, the outer diameter of the first baffle and the outer diameter of the first shaft sleeve both being greater than the inner diameter of the first through hole, the first crank end being provided with a first opening penetrating into the first through hole, the first opening separating the first crank end into a first clamping portion and a second clamping portion, the first crank end being provided with a fourth bolt, the fourth bolt being screwed with the second clamping portion after penetrating through the first clamping portion, the second crank linkage mechanism comprising a rotatably connected second crank and a second connecting rod, the second connecting rod being rotatably connected to the connecting seat, the second driving mechanism driving the second crank to rotate, the second crank being provided with a second through hole through which a fourth rotating shaft passes, the fourth rotating shaft being sleeved with a second shaft sleeve, an end of the fourth rotating shaft being fixed with a second baffle through a fifth bolt, the second baffle and the second shaft sleeve being located on two sides of the second crank, the outer diameter of the second baffle and the outer diameter of the second shaft sleeve both being greater than the inner diameter of the second through hole, the second crank end being provided with a second opening penetrating into the second through hole, the second opening separating the second crank end into a third clamping portion and a fourth clamping portion, the second crank end being provided with a sixth bolt, the sixth bolt being screwed with the fourth clamping portion after penetrating through the third clamping portion.

2. The unstable running training device of claim 1, wherein, The rack comprises a first side frame, a second side frame and a connecting frame, one end of the front roller is rotationally connected with the first side frame, the other end of the front roller is rotationally connected with the second side frame, one end of the rear roller is rotationally connected with the first side frame, the other end of the rear roller is rotationally connected with the second side frame, one side of the connecting frame is fixedly connected with the side of the first side frame facing the connecting seat, the other side of the connecting frame is fixedly connected with the side of the second side frame facing the connecting seat, and the connecting frame is fixedly connected with the connecting seat.

3. The unstable running training device of claim 2, wherein, A plurality of first pads are arranged between the first side frame and the connecting frame, and a plurality of second pads are arranged between the second side frame and the connecting frame.

4. The unstable running training device of claim 2, wherein, The first side frame comprises a first support base, a first support top and a first support beam, the first support base and the first support top are located on both sides of the first support beam, The second side frame comprises a second support base, a second support top and a second support beam, the second support base and the second support top are located on both sides of the second support beam, The first support beam and the second support beam are fixedly connected with the connecting frame.

5. The unstable running training device of claim 4, wherein, The first support base is fixedly connected with a plurality of first support blocks, a plurality of second support blocks are arranged between the first support beam and the first support top, and the side of the gap between the first support beam and the first support top opposite to the first support blocks is opposite to the second support blocks. The second support base is fixedly connected with a plurality of third support blocks, a plurality of fourth support blocks are arranged between the second support beam and the second support top, and the side of the gap between the second support beam and the second support top opposite to the fourth support blocks is opposite to the third support blocks.

6. The unstable running training device of claim 5, wherein, First buffer pads are arranged between the second support blocks and the first support top, Second buffer pads are arranged between the fourth support blocks and the second support top.

7. The unstable running training device of claim 1, wherein, The base is fixedly connected with a first stand and a second stand, and the side of the first stand away from the base and the side of the second stand away from the base are fixedly connected.

8. The unstable running training device of claim 7, wherein, The side of the first stand away from the base and the side of the second stand away from the base extend above the ring-shaped running track, the first stand and the second stand are fixedly connected with handrails, the handrails are provided on both sides of the first stand and the second stand, the first stand and the second stand are fixedly connected with fixing frames, and the fixing frames are fixedly connected with displays.

9. The unstable running training device of claim 1, wherein, The base is provided with a first fixing seat, the first fixing seat is provided with a first supporting seat, and the follower is rotationally connected with the first supporting seat through a first rotating shaft, The connecting seat is provided with a second fixing seat, the second fixing seat is provided with a second supporting seat, and the follower is rotationally connected with the second supporting seat through a second rotating shaft.

10. The unstable running training device of claim 1, wherein, The first drive mechanism comprises a first motor, a first speed reducer and a third rotating shaft, the first motor drives the third rotating shaft to rotate through the first speed reducer, the third rotating shaft is connected with the first crank linkage mechanism, The second driving mechanism comprises a second motor, a second speed reducer and a fourth rotating shaft, the second motor drives the fourth rotating shaft to rotate through the second speed reducer, and the fourth rotating shaft is connected with the second crank linkage mechanism.

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