Assistive device for fitness training

Abstract

An assistive device for fitness training for providing assistance when a user performs an upward movement against gravity. The assistive device comprises a base, two guide columns, a support plate, and an elastic assembly. The two guide columns are vertically arranged on the base and spaced apart in the left-right direction; the support plate is arranged between the two guide columns so as to be movable upward and downward; and the elastic assembly is configured to provide an upward moving force to the support plate. The assistive device can be used in cooperation with other fitness apparatuses. For example, when a user performs a pull-up exercise on a horizontal bar, the assistive device may be placed below the horizontal bar to provide assistance to the user. The assistive device is independent of fitness apparatuses such as a horizontal bar or parallel bars, and therefore is convenient to carry and flexible to use, and can be used indoors or outdoors.

Description

An assistive device for fitness training Technical Field

[0001] This utility model relates to the field of assistive fitness equipment, and in particular to an assistive device for fitness exercise. Background Technology

[0002] Chinese patent document CN214971597U discloses a pull-up apparatus using elastic bands, including a base frame, a crossbar, a locking assembly, a grip assembly, an assist assembly, and a drive assembly. Support plates are fixedly connected to the middle of both side plates of the base frame, and mounting seats are fixedly connected to one side of the upper end of each support plate. This invention utilizes multiple bar slots on the support plates to allow the user to place the crossbar into different slots, thus adjusting the bar height according to the user's height. A rectangular sliding sleeve, a buckle groove, a rotating buckle handle, and a locking rod can close the openings of the bar slots. When closed, the locking rod is pushed upwards, passing through a fixed ring on the support plate. Then, rotating the buckle handle engages the buckle groove, securing the locking rod and effectively preventing the crossbar from slipping out of the bar slot during use.

[0003] The structure of the device in the above technical solution is relatively complex. During use, it is easy to cause safety problems due to the damage of a certain part. In addition, the device needs to be used with a pull-up bar after assembly, and it is not convenient to move after installation, which greatly increases the limitations of the device.

[0004] Utility Model Content

[0005] The purpose of this invention is to provide a simple and portable assistive device for fitness exercise.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An assistive device for fitness exercise, used to provide assistance when a user overcomes gravity to make upward movements, is characterized by comprising a base, two guide columns, a support plate, and an elastic component. The two guide columns are vertically arranged on the base with a left-right interval, the support plate is movably arranged between the two guide columns, and the elastic component is used to provide an upward force to the support plate.

[0008] The assistive device provided in this application can be used in conjunction with other fitness equipment. For example, when an exerciser is doing pull-ups on a horizontal bar, the assistive device can be placed under the bar to provide assistance. Specifically, the exerciser stands on the support board and grips the bar to perform a pull-up. During this process, the elastic component applies an upward force to the support board, thereby counteracting the exerciser's own weight and reducing the difficulty of the pull-up. Even women or obese individuals can easily complete pull-ups. Of course, in addition to pull-ups, it can also be used on parallel bars or other exercises that require overcoming gravity. The assistive device is independent of horizontal bars, parallel bars, and other fitness equipment; therefore, it is portable, flexible in use, and can be used indoors or outdoors.

[0009] The upper end of the guide column is provided with an upper beam that extends horizontally in the longitudinal direction.

[0010] By adopting the above technical solution, an upper beam extending horizontally along the longitudinal direction is set at the upper end of the guide column, making the entire device more stable and reliable. When the user uses it frequently and applies great force, it is less likely to cause safety hazards such as structural collapse or loosening and falling off of parts, ensuring that the user can exercise with the help of the assistive device in a safe environment and reducing the risk of injury caused by the device itself.

[0011] The elastic component includes at least one elastic band connecting each upper beam and the support plate.

[0012] By adopting the above technical solution, the installation process of connecting the elastic band between the upper beam and the support plate is relatively simple and easy. Moreover, during use, multiple elastic bands can be installed according to one's own situation to meet one's own needs.

[0013] The elastic component includes a tension spring disposed between the upper beam and the support plate, or a compression spring disposed between the base and the support plate.

[0014] By adopting the above technical solution, a compression spring is placed between the base and the support plate. When the user stands on the support plate, their own weight will cause the support plate to press down, and the compression spring will be compressed to generate an upward supporting force, which is an assist. This supporting force is relatively stable and will not fluctuate greatly with small up and down movements of the support plate within a certain range. It can provide the user with a relatively constant assist base. Alternatively, a tension spring can be connected between the upper beam and the support plate. As the support plate moves downward, the tension spring is stretched, and the tension it generates will gradually increase. Correspondingly, the upward assist provided to the support plate will also increase. This correlation between the assist and the displacement of the support plate meets the mechanical requirements of many exercises that overcome gravity and move upward.

[0015] The pallet includes two longitudinal beams and at least one crossbeam connecting the two longitudinal beams. The longitudinal beams are mounted on the guide column and can be moved up and down via linear bearings. The longitudinal beams are arranged parallel to and opposite to the upper beam. The elastic band connects the longitudinal beams and the upper beam.

[0016] By adopting the above technical solution, the longitudinal beam is mounted on the guide column with the help of linear bearings, which makes the movement of the longitudinal beam very smooth. The linear bearings can effectively reduce the friction between the longitudinal beam and the guide column, ensuring that the tray will not jam when it moves up and down with the user, providing the user with a smooth exercise experience. The parallel layout of the longitudinal beam and the upper beam makes the whole device more regular and stable in structure.

[0017] The pallet includes two crossbeams connected between the ends of the two longitudinal beams and a plate body fixedly mounted on the two crossbeams.

[0018] By adopting the above technical solution, the crossbeam, as a connecting component, helps to distribute the pressure applied by the user to the plate more evenly to each longitudinal beam, avoiding the situation where excessive local stress causes damage to the longitudinal beam or other components.

[0019] Buffer pads are provided at the bottom of both ends of the longitudinal beam.

[0020] By adopting the above technical solution, when the pallet moves up and down, especially during rapid descent or when the user's movements are abrupt, the bottom of the longitudinal beam and the top of the base are prone to collision and impact. The presence of the buffer pad can effectively absorb and buffer these impact forces, preventing direct rigid impact of the longitudinal beam and preventing wear, deformation, or even damage to the power assist device due to frequent large impacts, thereby extending the service life of the power assist device.

[0021] Both the upper beam and the longitudinal beam are provided with multiple hanging holes arranged at intervals along their length. The upper and lower ends of the elastic band are detachably fastened to the hanging holes of the upper beam and the longitudinal beam by hooks.

[0022] By adopting the above technical solution, and using a hook that can be detachably attached to the hanging hole, the installation process of the elastic band becomes extremely simple.

[0023] Both the upper beam and the longitudinal beam are metal tubes with rectangular cross-sections. The metal tubes have a first hole penetrating the top surface and the side surface, and a second hole penetrating the top surface. The first hole and the second hole are arranged at intervals relative to each other to form the hanging holes.

[0024] By adopting the above technical solution, metal tubes with rectangular cross-sections are selected for the upper beam and longitudinal beam, which can improve their strength. The size and shape of the holes are also suitable, so that the hooks can pass through easily and achieve detachable hooking operations.

[0025] The base includes two support beams and a connecting beam. The two support beams are arranged laterally at intervals and extend horizontally along the longitudinal direction. The connecting beam connects the two support beams. The support beams are arranged parallel to and opposite to the longitudinal beams.

[0026] By adopting the above technical solution, the two support beams are arranged laterally and extend horizontally along the longitudinal direction. This layout lays a stable bottom foundation for the entire assist device. The lateral spacing allows the support surface of the device to be reasonably distributed in the lateral direction, increasing the contact area between the base and the ground, thereby improving the stability of the entire device on the horizontal plane and effectively preventing the device from tipping over or other unstable situations due to uneven force.

[0027] The support beam has end sleeves at both ends, and foot pads at the bottom of the end sleeves. The foot pads are threadedly connected to the bottom of the end sleeves by screws.

[0028] By adopting the above technical solution, in actual use, if there is a certain height difference on the ground where the assistive device is placed, or if the user wants to adjust the overall height of the device according to their own habits, the height of the foot pad can be easily changed by rotating the screw, thereby achieving fine adjustment of the height of the entire device, so that the device can better adapt to different ground conditions and meet the personalized needs of different users for the height of the device.

[0029] The upper beam is provided with a plurality of first hanging rings arranged at intervals along its length, and the longitudinal beam is provided with a plurality of second hanging rings arranged at intervals along its length. The upper and lower ends of the elastic band are detachably hung on the first hanging rings of the upper beam and the second hanging rings of the longitudinal beam by hooks, respectively.

[0030] The upper beam has a hollow structure. The first hanging ring is connected to the upper beam through a first fixing member. The first fixing member includes a limiting rod and a first connecting rod connecting the limiting rod and the first hanging ring. The first connecting rod is connected to the limiting rod in a "T" shape. An elongated clearance hole adapted to the limiting rod is formed at the bottom of the upper beam. A positioning groove intersecting the elongated clearance hole is formed inside the upper beam. The positioning groove is adapted to the limiting rod. After the limiting rod enters the upper beam through the elongated clearance hole, it rotates at a certain angle and then embeds into the positioning groove. The above structure facilitates the assembly of the first hanging ring.

[0031] The second hanging ring of the longitudinal beam is connected to the longitudinal beam via a second fixing member. The second fixing member includes a limiting head and a second connecting rod connecting the limiting head and the second hanging ring. The longitudinal beam is a metal tube with a rectangular cross-section. A third hole is formed on the metal tube, penetrating the side and matching the limiting head. An elongated fourth hole is formed on the metal tube, penetrating the top and matching the second connecting rod. The fourth hole communicates with the third hole. The width of the second hanging ring and the diameter of the limiting head are greater than the width of the fourth hole. The second fixing member is inserted into the metal tube through the third and fourth holes. A fixing cover plate is provided on the metal tube to close the third hole and part of the fourth hole. The metal tube is wrapped with an outer shell, which has a notch that matches the fixing cover plate. The fixing cover plate and the outer shell are snapped together. The above structure facilitates the assembly of the second hanging ring. Attached Figure Description

[0032] Figure 1 is a natural state diagram of Embodiment 1 of this utility model.

[0033] Figure 2 is a diagram showing the state of the pallet under gravity in Embodiment 1 of this utility model.

[0034] Figure 3 is a diagram showing the state of the tray moving upward by the elastic component providing elastic force according to Embodiment 1 of this utility model.

[0035] Figure 4 is an exploded view of Embodiment 1 of this utility model.

[0036] Figure 5 is an exploded view of another perspective of Embodiment 1 of this utility model.

[0037] Figure 6 is an enlarged view of part A in Figure 4.

[0038] Figure 7 is a left view of Embodiment 1 of this utility model.

[0039] Figure 8 is a cross-sectional view along the AA direction in Figure 7.

[0040] Figure 9 is a natural state diagram of Embodiment 2 of this utility model.

[0041] Figure 10 is a left view of Embodiment 2 of this utility model.

[0042] Figure 11 is a cross-sectional view along the BB direction in Figure 10.

[0043] Figure 12 is an enlarged view of part B in Figure 11.

[0044] Figure 13 is an enlarged view of part C in Figure 11.

[0045] Figure 14 is a perspective view of the second embodiment of the present invention with the plate removed.

[0046] Figure 15 is an exploded view of Embodiment 2 of this utility model.

[0047] Figure 16 is an exploded view of another perspective of Embodiment 2 of this utility model.

[0048] Figure 17 is a schematic diagram of the installation of the plate and cover plate in Embodiment 2 of this utility model.

[0049] Figure 18 is an exploded view of the upper beam in Embodiment 2 of this utility model.

[0050] Figure 19 is an exploded view of the upper beam from another perspective in Embodiment 2 of this utility model. Detailed Implementation

[0051] Example 1: Referring to Figures 1 to 8, an assistive device for fitness exercise is described below. The technical solution of this utility model will be further explained through specific embodiments and in conjunction with the accompanying drawings:

[0052] An assistive device for fitness exercise, used to provide assistance when a user overcomes gravity to make upward movements, includes a base 1, two guide columns 2, a support plate 3, and an elastic component 4.

[0053] The base 1 includes two support beams 11 and a connecting beam 12 made of metal tubing with a rectangular cross-section. The two support beams 11 are arranged laterally at intervals and extend horizontally in the longitudinal direction. The connecting beam 12 is welded between the two support beams 11. A first protective sleeve 13 made of plastic material is also fitted on the two support beams 11 and the connecting beam 12, which can protect the two support beams 11 and the connecting beam 12 to a certain extent, so as to avoid deformation of the two support beams 11 and the connecting beam 12 due to accidental stepping during use. End sleeves 14 are fitted at both ends of the support beams 11. Foot pads 15 are provided at the bottom of the end sleeves 14. The foot pads 15 are threaded to the bottom of the end sleeves 14 by screws, which can facilitate fine-tuning and leveling on uneven ground, so that the base 1 is more stably supported on the ground.

[0054] Two guide columns 2 are vertically arranged on the two support beams 11 of the base 1 at intervals. Each guide column 2 has an upper beam 21 extending horizontally in the longitudinal direction at its upper end. The support plate 3 is movably arranged between the two guide columns 2. The upper beam 21 is a metal tube with a rectangular cross-section. A second protective sleeve 22 made of plastic material that is compatible with the upper beam 21 is also fitted on the upper beam 21 to prevent the edge of the metal tube from scratching the user during use.

[0055] The pallet 3 includes two longitudinal beams 31 and two transverse beams 32 connected between the ends of the two longitudinal beams 31. The longitudinal beams 31 are movably mounted on the guide column 2 via linear bearings 33. The longitudinal beams 31 are arranged parallel to and opposite to the upper beam 21 and the support beam 11. A reinforcing beam 36 is also connected between the two transverse beams 32. The two ends of the reinforcing beam 36 are connected to the two transverse beams 32 and are parallel to the two longitudinal beams 31. The reinforcing beam 36 can increase the structural strength of the pallet. An elastic component 4 is connected between the longitudinal beams 31 and the upper beam 21. The longitudinal beam 31 and the cross beam 32 are also made of metal tubes with rectangular cross sections. A third protective sleeve 34 adapted to the two longitudinal beams 31 is also fitted on the two longitudinal beams 31, which can also prevent the edge of the metal tube from causing injury to the user during use. The support plate 3 also includes two cross beams 32 connected between the ends of the two longitudinal beams 31 and a plate 35 fixedly installed on the two cross beams 32. The bottom of both ends of the third protective sleeve 34 fitted on the longitudinal beams 31 is also provided with a buffer pad 341.

[0056] The elastic component 4 can be a tension spring disposed between the upper beam 21 and the support plate 3, or a compression spring disposed between the base 1 and the support plate 3, or multiple elastic bands 41 connected between the upper beam 21 and the support plate 3. In this embodiment, the elastic band 41 is used as the elastic component 4 as an example. The elastic component 4 includes at least one elastic band 41 and hooks 42 connected to both ends of the elastic band 41. Multiple hanging holes 43 are provided on both the upper beam 21 and the longitudinal beam 31, arranged at intervals along their length direction. A first hole 431 penetrating the top surface and the side surface and a second hole 432 penetrating the top surface are formed on the upper beam 21 and the longitudinal beam 31. The first hole 431 and the second hole 432 are arranged at intervals relative to each other to form hanging holes 43. The upper end and the lower end of the elastic band 41 are detachably hooked onto the hanging holes 43 of the upper beam 21 and the longitudinal beam 31 through the hooks 42, respectively.

[0057] When in use, the device can be used in conjunction with other fitness equipment. For example, when performing pull-ups on a horizontal bar, the assist device can be placed below the bar to provide assistance. Specifically, the user stands on the support plate 3 and grips the bar to perform a pull-up. During this process, the elastic component 4 applies an upward force to the support plate 3, thereby counteracting the user's own weight and reducing the difficulty of the pull-up. Even women or obese users can obtain more assistance by securing multiple elastic bands 41 to the hooks 42, making pull-ups easier. Of course, besides pull-ups, it can also be used on parallel bars or other exercises requiring overcoming gravity. The assist device is independent of horizontal bars, parallel bars, and other fitness equipment, making it convenient to carry and flexible in use; it can be used indoors or outdoors.

[0058] Example 2, as shown in Figures 9 to 19, is basically the same as Example 1, both having a base 1 and two guide posts 2, which will not be described in detail here. The difference lies in that: the elastic component 5 in Example 2 includes an elastic rope 51, a first hanging member 52, a second hanging member 53, and a hook 54. The first hanging member 52 includes a first hanging ring 523 and a first fixing member. The first hanging ring 523 is connected to the upper beam 6 through the first fixing member. The first fixing member includes a first connecting rod 522 and a limiting rod 521. The first connecting rod 522 and the limiting rod 521 are connected to each other. The rod 521 is connected in a "T" shape. The first hanging ring 523 is connected to the limiting rod 521 through the first connecting rod 522. The second hanging member 53 includes a second hanging ring 533 and a second fixing member. The second hanging ring 533 is connected to the longitudinal beam 7 through the second fixing member. The second fixing member includes a second connecting rod 532 and a limiting head 531. The limiting head 531 is connected to the second hanging ring 533 through the second connecting rod 532. The hooks 54 are set at both ends of the elastic rope 51 and can be hooked onto the first hanging ring 523 and the second hanging ring 533 respectively.

[0059] The upper beam 6 is a hollow structure, comprising an upper shell 61 and a lower shell 62. Both the upper shell 61 and the lower shell 62 are made of plastic and are interlocked. An elongated clearance hole 621 adapted to the limiting rod 521 is formed at the bottom of the lower shell 62. A positioning groove 622 adapted to the limiting rod 521 and intersecting with the elongated clearance hole 621 is formed inside the lower shell 62. In use, the first connecting rod 522 and the first hanging ring 523 of the first hanging member 52 can be passed through the elongated clearance hole 621 and rotated at a certain angle so that the limiting rod 521 is embedded in the positioning groove 622 to limit and fix the first hanging member 52.

[0060] The longitudinal beam 7 is a metal tube with a rectangular cross-section. A third hole 71 is formed on the side of the longitudinal beam 7 to match the limiting head 531. An elongated fourth hole 72 is formed on the top surface of the longitudinal beam 7 to match the second connecting rod 532. The third hole 71 and the fourth hole 72 are interconnected. The width of the second hanging ring 533 and the diameter of the limiting head 531 are greater than the width of the fourth hole 72. In use, the limiting head 531 of the second hanging piece 53 can be inserted into the third hole 71 on the side of the longitudinal beam 7, and the fourth hole 72 restricts the limiting head 531 from detaching from the longitudinal beam 7. It should be noted that the shape of the limiting head 531 can be selected according to the requirements. In this embodiment, a spherical limiting head 531 is used as an example.

[0061] As shown in Figure 17, the longitudinal beam 7 is wrapped with a shell 8. A fixing cover plate 81 is provided on the side of the shell 8, extending from the side of the shell 8 to the top surface of the shell 8. The shell 8 has a notch that matches the fixing cover plate 81. The fixing cover plate 81 and the shell 8 are snapped together. Snap-on parts 811 are formed on both sides of the fixing cover plate 81, so that the fixing cover plate 81 can be snapped onto the shell 8. This is prior art and will not be described in detail here. It can be removed when installing the second hanger 53, and then snapped back onto the shell 8 after the second hanger 53 is installed. The fixing cover plate 81 can also be used to close the third hole 71 and part of the fourth hole 72.

[0062] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model shall still fall within the scope of the patent of the present utility model. Industrial applicability

[0063] An assistive device for fitness training is provided to assist users in overcoming gravity and performing upward movements. The assistive device can be used in conjunction with other fitness equipment. For example, when a user is doing pull-ups on a horizontal bar, the assistive device can be placed under the bar to provide assistance. The assistive device is independent of fitness equipment such as horizontal bars and parallel bars. Therefore, it is easy to carry, flexible in use, and can be used indoors or outdoors. It has a wide range of applications and good industrial practicality.

Claims

1. An assistive device for fitness exercise, used to provide assistance when a user is performing upward movements against gravity, characterized in that: It includes a base, two guide pillars, a support plate, and an elastic component. The two guide pillars are vertically arranged on the base with a left-right gap. The support plate is arranged between the two guide pillars and can move up and down. The elastic component is used to provide an upward force to the support plate.

2. The assistive device for fitness exercise according to claim 1, characterized in that: The upper end of the guide column is provided with an upper beam that extends horizontally in the longitudinal direction.

3. The assistive device for fitness exercise according to claim 2, characterized in that: The elastic component includes at least one elastic band connecting each upper beam and the support plate.

4. The assistive device for fitness exercise according to claim 2, characterized in that: The elastic component includes a tension spring disposed between the upper beam and the support plate, or a compression spring disposed between the base and the support plate.

5. The assistive device for fitness exercise according to claim 3, characterized in that: The pallet includes two longitudinal beams and at least one crossbeam connecting the two longitudinal beams. The longitudinal beams are mounted on the guide column and can be moved up and down via linear bearings. The longitudinal beams are arranged parallel to and opposite to the upper beam. The elastic band connects the longitudinal beams and the upper beam.

6. The assistive device for fitness exercise according to claim 5, characterized in that: The pallet includes two crossbeams connected between the ends of the two longitudinal beams and a plate body fixedly mounted on the two crossbeams.

7. The assistive device for fitness exercise according to claim 5, characterized in that: Buffer pads are provided at the bottom of both ends of the longitudinal beam.

8. The assistive device for fitness exercise according to claim 5, characterized in that: Both the upper beam and the longitudinal beam are provided with multiple hanging holes arranged at intervals along their length. The upper and lower ends of the elastic band are detachably fastened to the hanging holes of the upper beam and the longitudinal beam by hooks.

9. The assistive device for fitness exercise according to claim 8, characterized in that: Both the upper beam and the longitudinal beam are metal tubes with rectangular cross-sections. The metal tubes have a first hole penetrating the top surface and the side surface, and a second hole penetrating the top surface. The first hole and the second hole are arranged at intervals relative to each other to form the hanging holes.

10. An assistive device for fitness exercise according to any one of claims 5 to 9, characterized in that: The base includes two support beams and a connecting beam. The two support beams are arranged laterally at intervals and extend horizontally along the longitudinal direction. The connecting beam connects the two support beams. The support beams are arranged parallel to and opposite to the longitudinal beams.

11. The assistive device for fitness exercise according to claim 10, characterized in that: The support beam has end sleeves at both ends, and foot pads at the bottom of the end sleeves. The foot pads are threadedly connected to the bottom of the end sleeves by screws.

12. The assistive device for fitness exercise according to claim 5, characterized in that: The upper beam is provided with a plurality of first hanging rings arranged at intervals along its length, and the longitudinal beam is provided with a plurality of second hanging rings arranged at intervals along its length. The upper and lower ends of the elastic band are detachably hung on the first hanging rings of the upper beam and the second hanging rings of the longitudinal beam by hooks, respectively.

13. The assistive device for fitness exercise according to claim 12, characterized in that: The upper beam has a hollow structure. The first hanging ring is connected to the upper beam through a first fixing member. The first fixing member includes a limiting rod and a first connecting rod connected between the limiting rod and the first hanging ring. The first connecting rod is connected to the limiting rod in a "T" shape. An elongated clearance hole adapted to the limiting rod is formed at the bottom of the upper beam. A positioning groove intersecting the elongated clearance hole is formed inside the upper beam. The positioning groove is adapted to the limiting rod. After the limiting rod enters the upper beam through the elongated clearance hole, it rotates at a certain angle and then embeds into the positioning groove.

14. The assistive device for fitness exercise according to claim 12, characterized in that: The second hanging ring of the longitudinal beam is connected to the longitudinal beam through a second fixing member. The second fixing member includes a limiting head and a second connecting rod connected between the limiting head and the second hanging ring. The longitudinal beam is a metal tube with a rectangular cross-section. A third hole is formed on the metal tube, penetrating the side and matching the limiting head. An elongated fourth hole is formed on the metal tube, penetrating the top and matching the second connecting rod. The fourth hole communicates with the third hole. The width of the second hanging ring and the diameter of the limiting head are greater than the width of the fourth hole. The second fixing member is inserted into the metal tube through the third and fourth holes. A fixing cover plate is provided on the metal tube for closing the third hole and part of the fourth hole. The metal tube is wrapped with an outer shell, which has a notch that matches the fixing cover plate. The fixing cover plate and the outer shell are snapped together.

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