Pull-up auxiliary device for physical training

Abstract

The invention relates to the technical field of sports equipment, in particular to a physical training pull-up auxiliary device which comprises a treading table for a human body to stand, a liftable treading plate is assembled above the treading table, and a non-elastic lifting rope is assembled between the treading plate and the treading table. The treading table and the pedal are suspended on a cross rod used for pull-up through lifting ropes, an elastic assembly used for suspending the treading table is further assembled on the surface of the treading table, and the elastic force of the elastic assembly is larger than the sum of the gravity of the treading table and the gravity of the pedal; by arranging the lifting rope, the pedal and the treading table, when a user does not pull up, the user presses the pedal with the foot, the pedal and the treading table descend integrally at the first stage, the lifting rope is in a straightened state, the pedal moves downwards to the surface of the treading table at the second stage, and the lifting rope is pulled but still in the straightened state in the process, so that the user does not pull up. And the pedal table and the pedal plate are stabilized at a certain height by virtue of the pulling force of the lifting rope, so that the safety in use is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of sports equipment, and specifically provides a pull-up auxiliary equipment for sports training. Background Art

[0002] The horizontal bar is a very common piece of sports equipment in community activity areas. The simplest horizontal bar consists of two upright posts on the ground and a horizontal bar connected to the top of the two posts. Community members can use the horizontal bar to do pull-ups to enhance their upper limb strength, exercise their back muscles, improve core stability, etc. However, for people with weak muscle strength, they still need the help of external auxiliary structures. Elastic rope is one of the most common pull-up auxiliary equipment. The user puts it on the lever and uses the elastic force of the elastic rope to "offset" part of the gravity, thereby reducing the work done by the fitness personnel to overcome gravity and achieving the purpose of completing the pull-up exercise.

[0003] However, there are certain problems when using it outdoors: first, after installing the elastic rope, the user needs to use his or her own jumping force to grasp the lever, or move himself or herself to a certain height through external objects and then grasp the lever, which is inconvenient to use; second, when the fitness person needs to come down from the lever, the elastic force of the elastic rope cannot ensure that the user falls stably, so there is a greater risk of falling. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a pull-up auxiliary equipment for sports training, which is used to solve the problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a sports training pull-up auxiliary equipment, including a stepping platform for human body standing, a liftable stepping board is installed on the top of the stepping platform, and an inelastic suspension rope is installed between the stepping board and the stepping platform, and the stepping platform and the stepping board are both suspended on a cross bar used for pull-ups by the suspension rope; the surface of the stepping platform is also equipped with an elastic component which is also used to suspend the stepping platform, and the elastic force of the elastic component is greater than the sum of the gravity of the stepping platform and the stepping board; the surface of the stepping platform is equipped with a guide component with a supporting function, which is used to ensure that the stepping board moves in the vertical direction.

[0006] Preferably, the elastic component includes a plurality of elastic ropes suspended on a cross bar, both ends of the elastic ropes are hung on the hanging rings of the stepping platform through spring buckles, the plurality of elastic ropes are divided into two groups and are respectively installed at symmetrical positions of the stepping platform, and the plurality of elastic ropes are combined and installed through a hook assembly installed on the cross bar.

[0007] Preferably, the hook assembly includes a flexible plate-shaped hook, one side of the hook is compounded with a flexible pad with a large friction coefficient, and the other side of the hook is provided with a plurality of rings linearly arranged along the axial direction of the cross bar, and the elastic rope and the sling are both passed through the inside of the ring for combined installation.

[0008] Preferably, both sides of the stepping platform are equipped with limiting mechanisms for preventing the stepping platform from moving forwards and backwards and left and right.

[0009] Preferably, the limiting mechanism includes an openable and closable ring buckle with a ball on the inner side, the ring buckle is sleeved on the surface of the column supporting the cross bar, and a retractable connecting component is installed between the ring buckle and the stepping platform. The connecting component includes an outer tube with a thread on the outer surface, a multi-section retractable inner tube and an inner rod installed in the inner tube. A thread groove matching the thread of the outer tube is opened on the side of the stepping platform, the outer tube is installed in the thread groove position, and the inner rod is installed on the surface of the ring buckle.

[0010] Preferably, the inner rod is a threaded rod, the section of the inner tube connecting the inner rod is a pipe containing internal threads, the inner rod can be adapted to be installed in the threaded section of the inner tube, the end of the inner rod movably passes through a ring buckle, and the end is provided with an arc-shaped guide with a ball through the bearing mounting surface.

[0011] Preferably, a guide rod for longitudinally limiting the guide member is installed on the outer side of the guide member, and the guide rod movably penetrates the surface of the buckle.

[0012] Preferably, the stepping platform and the pedal board are both configured to be openable and closable and are connected by hinges. The middle part of the stepping platform is recessed for placing elastic ropes and hanging ropes. The stepping platform is provided with a groove adapted to the pedal board directly below the pedal board. The guide assembly includes a retractable multi-section guide tube. The interior of the guide tube is ensured to be in an expanded state by installing a support spring. A circular groove for installing the guide tube is provided in the groove.

[0013] Preferably, the diameter of each section of the guide tube gradually decreases from top to bottom, and a stud with a diameter larger than the maximum diameter of the guide tube is installed on the top of the guide tube. The top of the stud movably passes through the pedal and is provided with an anti-drop plate to prevent the pedal from falling off. The surface of the stud is threadedly sleeved with a rotatable knob plate, and the knob plate and the anti-drop plate are respectively located on both sides of the pedal, and the inner side of the circular groove is provided with a thread matching the stud.

[0014] Preferably, the guide rod is mounted on the surface of the guide member via a bearing, one end of the guide rod is provided with a thread, and a locking groove matching the thread of the guide rod is provided on the side of the stepping platform.

[0015] The above technical solution has the following advantages or beneficial effects: 1. The present invention provides a sports training pull-up auxiliary equipment, which is provided with a hanging rope, a pedal and a stepping platform. When the user does not do pull-ups, he presses down the pedal with his feet. In the first stage, the pedal and the stepping platform are lowered as a whole, and the hanging rope is in a stretched state. In the second stage, the pedal moves down to the surface of the stepping platform. The hanging rope is pulled in the process but is still in a stretched state until the stepping platform and the pedal are stabilized at a certain height by the pulling force of the hanging rope, thereby ensuring safety during use. 2. The present invention provides a sports training pull-up auxiliary equipment, which is provided with a foldable stepping platform and a stepping pedal, a retractable guide assembly and a connecting assembly. When the whole device is not in use, all the components are placed inside the stepping platform, the guide assembly and the connecting assembly are compressed into the inside of the stepping platform, and are fixed to each other by screw threads. Finally, the stepping platform can be folded for easy carrying; 3. The present invention provides a pull-up auxiliary equipment for sports training. By setting an outer tube, an inner tube and an inner rod, the length of the connecting assembly can be adjusted by rotating the outer tube and the inner rod, so as to be suitable for different pull-up devices. At the same time, rotating the inner rod can also adjust the position of the guide member and change the distance between the guide member and the buckle, so as to adapt to columns of different diameters, further ensure the stability of the stepping platform, and improve the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention and its features, configurations and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts throughout the drawings, which are not drawn to scale, with emphasis on illustrating the subject matter of the present invention.

[0017] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a sports training pull-up auxiliary equipment.

[0018] Figure 2 The present invention Figure 1 A magnified view of the local structure in Figure 2.

[0019] Figure 3 It is a schematic diagram of the installation structure of the pedal and the stepping platform.

[0020] Figure 4 It is a schematic diagram of the split structure of the guide assembly and the pedal installation position.

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the guide component.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the limiting structure.

[0023] Figure 7 yes Figure 6Schematic diagram of the cross-sectional structure.

[0024] Figure 8 yes Figure 7 Enlarged view of the local structure at point B.

[0025] In the figure: 1. stepping platform; 2. stepping pedal; 3. hanging rope; 4. elastic rope; 5. hook; 6. flexible pad; 7. ring; 8. buckle; 9. outer tube; 10. inner tube; 11. inner rod; 12. threaded groove; 13. guide; 14. guide rod; 15. groove; 16. guide tube; 17. support spring; 18. round groove; 19. stud; 20. knob plate; 21. anti-slip plate; 22. lock groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] A sports training pull-up auxiliary equipment, such as Figure 1 As shown, it includes a pedaling platform 1 for human body standing. The pedaling platform 1 can be made of a material with light weight but high pressure resistance. A liftable pedal board 2 is installed on the top of the pedaling platform 1. The pedal board 2 and the pedaling platform 1 can be made of the same production material. An inelastic suspension rope 3 is installed between the pedal board 2 and the pedaling platform 1. The pedaling platform 1 and the pedal board 2 are both suspended on a crossbar for pull-ups through the suspension rope 3. In the initial state, it is necessary to ensure that the pedal board 2 is suspended above the pedaling platform 1; the surface of the pedaling platform 1 is also equipped with an elastic component for suspending the pedaling platform 1. The elastic force of the elastic component is greater than the sum of the gravity of the pedaling platform 1 and the pedal board 2, that is, the suspension rope 3 in the initial state is not affected by other external forces except its own gravity; the surface of the pedaling platform 1 is equipped with a guide component with a supporting function, which is used to ensure that the pedal board 2 moves in the vertical direction to avoid deviation and ensure stability and safety during use.

[0029] When the user does pull-ups, the feet are placed on the pedal platform 1, and the body descends, causing the pedal platform 1 to descend, and the elastic component is stretched. When the body is upward, the elastic component will provide a part of the elastic force to "offset" its own gravity, ensuring that the user can do pull-ups more easily. When the user does not do pull-ups, he presses down on the pedal 2 with his feet. In the first stage, the pedal 2 and the pedal platform 1 descend as a whole, and the suspension rope 3 is in a stretched state. In the second stage, the pedal 2 moves down to the surface of the pedal platform 1. The suspension rope 3 is pulled in the process but is still in a stretched state until the pedal platform 1 and the pedal 2 are stabilized at a certain height by the tension of the suspension rope 3. At this time, the user can get off the pedal platform 1 more safely, thereby ensuring safety during use.

[0030] like Figure 1-Figure 2 As shown, the elastic component includes multiple elastic ropes 4 suspended on the cross bar. The more elastic ropes 4 there are, the easier it is for the user to do pull-ups. Therefore, the user can choose the number of elastic ropes 4 to be installed according to his or her own ability. Both ends of the elastic rope 4 are hung on the hanging rings of the stepping platform 1 through spring buckles. The spring buckles and the hanging rings can be made of metal materials to ensure the stability of the installation connection. The multiple elastic ropes 4 are divided into two groups and are respectively installed at symmetrical positions of the stepping platform 1. The multiple elastic ropes 4 are combined and installed through a hook assembly installed on the cross bar. When installing the elastic rope 4 and the hanging rope 3, first buckle the spring buckle at one end, then swing the other end to pass through the top of the cross bar, and then buckle the spring buckle at the other end on the hanging ring. When removing, first untie one end and then pull it directly.

[0031] like Figure 2 As shown, the hook assembly includes a flexible plate-like hook 5. In the embodiment, the hook 5 can be a rectangular plate-like structure woven with nylon, which can be tightly attached to the surface of the cross bar when in use. One side of the hook 5 is compounded with a flexible pad 6 with a large friction coefficient. The flexible pad 6 changes with the shape of the hook 5, so as to ensure that the hook 5 is stably installed on the surface of the cross bar and will not easily slide along the cross bar, thereby ensuring safety and stability during use. The other side of the hook 5 is provided with a plurality of rings 7 linearly arranged along the axial direction of the cross bar, and the elastic rope 4 and the sling 3 are both passed through the inside of the ring 7 for combined installation, so as to ensure that the elastic rope 4 and the sling 3 will not move along the axial direction of the cross bar, and the elastic rope 4 can be selectively installed.

[0032] Limiting mechanisms are installed on both sides of the stepping platform 1 to prevent it from moving forward, backward, left and right. This can further ensure the stability of the stepping platform 1 and improve the safety of use.

[0033] like Figure 1 and Figure 6As shown, the limiting mechanism includes an openable and closable ring buckle 8 with a ball on the inner side. The ring buckle 8 is sleeved on the surface of the column. The ring buckle 8 needs to be opened and installed manually. A retractable connecting component is installed between the ring buckle 8 and the stepping platform 1, such as Figure 7 As shown, the connecting assembly includes an outer tube 9 with threads on the outer surface, a multi-section telescopic inner tube 10 and an inner rod 11 installed in the inner tube 10. In this embodiment, the inner tube 10 has only one section, but according to the distance between different lever columns, it is necessary to select a multi-section inner tube 10. It should be noted that the inner tube 10 still needs to ensure that the multiple sections can rotate with each other during the stretching process. A joint telescopic tube or a universal telescopic tube can be used, which can be selected according to actual production, such as Figure 3 As shown, a thread groove 12 matching the thread of the outer tube 9 is provided on the side of the stepping platform 1, the outer tube 9 is installed at the position of the thread groove 12, and the inner rod 11 is installed on the surface of the buckle 8. When in use, the inner rod 11 and the inner tube 10 are stretched, and then the distance between the buckle 8 and the stepping platform 1 is changed by rotating the outer tube 9. The locking function is ensured by the thread, and the structure is very simple and convenient to operate.

[0034] like Figure 6-Figure 7 As shown, the inner rod 11 is a threaded rod, and the section of the inner tube 10 connecting the inner rod 11 is a pipe containing internal threads. The inner rod 11 can be adapted to be installed in the threaded section of the inner tube 10, that is, the inner rod 11 can move inside the inner tube 10, and can also complete the locking function. The end of the inner rod 11 movably passes through the ring buckle 8 to ensure that the inner rod 11 can pass through the ring buckle 8 for axial movement, and the end is provided with an arc-shaped guide member 13 with a ball through the bearing mounting surface. Similarly, the diameters of the columns of different horizontal bars are not necessarily the same. In order to ensure that the ring buckle 8 does not shake on the surface of the column, the distance of the guide member 13 can be changed by rotating the inner rod 11 to ensure that the guide member 13 and the ring buckle 8 can both stick to the surface of the column. At this time, the ball can reduce the friction generated when the stepping platform 1 moves, ensuring that the entire equipment can be used normally.

[0035] like Figure 7-Figure 8 As shown, a guide rod 14 is installed on the outer side of the guide member 13 to limit the longitudinal position of the guide member 13, that is, to prevent the guide member 13 from rotating, simplify the complexity of operation, ensure that the axial direction of the guide member 13 is parallel to the axial direction of the ring buckle 8, and the guide rod 14 can move through the surface of the ring buckle 8.

[0036] The stepping platform 1 and the stepping pedal 2 are both openable and closable and are connected by hinges. Figure 1-Figure 3 As shown, the middle part of the stepping platform 1 is concave for placing the elastic rope 4 and the hanging rope 3. The stepping platform 1 is located directly below the stepping board 2 and has a groove 15 adapted to the stepping board 2, so that the stepping platform 1 can be completely placed in the groove 15 without affecting the closure of the stepping platform 1. Figure 5As shown, the guide assembly includes a retractable multi-section guide tube 16. When the pedal platform 1 is closed, the guide tube 16 can also be completely retracted into the inside of the pedal platform 1. The inside of the guide tube 16 is ensured to be in an open state by installing a support spring 17. When the pedal platform 1 is closed, the support spring 17 is in a compressed state. The elastic force of the support spring 17 only needs to be greater than the gravity of the pedal board 2 to ensure that the pedal board 2 is suspended above the pedal platform 1. A circular groove 18 for installing the guide tube 16 is opened in the groove 15.

[0037] When the stepping platform 1 is closed, the supporting spring 17 is compressed, the stepping pedal 2 moves to the inside of the groove 15, the outer tube 9 rotates inside the threaded groove 12, the inner tube 10 is retracted into the inside of the outer tube 9, the inner rod 11 rotates and retracts into the inside of the inner tube 10, and then the elastic rope 4 and the hanging rope 3 are placed in the concave position of the stepping platform 1. At this time, the stepping platform 1 is closed and fixed by the external locking structure, so that the whole equipment can be carried more conveniently.

[0038] The diameter of each section of the guide tube 16 decreases gradually from top to bottom. Figure 4 As shown, a stud 19 with a diameter larger than the maximum diameter of the guide tube 16 is installed on the top of the guide tube 16. The top of the stud 19 movably passes through the pedal 2 and is provided with an anti-drop plate 21 to prevent the pedal 2 from falling off. In order to prevent the pedal 2 from moving and falling off from the top of the guide tube 16, there is a certain distance between the anti-drop plate 21 and the pedal 2. A rotatable knob plate 20 is threadedly sleeved on the surface of the stud 19. The knob plate 20 is at a certain distance from the lower end of the stud 19. The knob plate 20 and the anti-drop plate 21 are respectively located on both sides of the pedal 2, and a thread matching the stud 19 is provided on the inner side of the circular groove 18.

[0039] When the pedal 2 is pressed down to the inside of the groove 15, the pedal 2 presses down the knob plate 20, and the knob plate 20 drives the guide tube 16 to move, and the support spring 17 is in a compressed state. At this time, the anti-slip plate 21 is rotated and pressed down, so that the stud 19 rotates into the inside of the circular groove 18. The pedal 2 is also locked by the cooperation of the thread, which makes it more convenient for the user to close the pedal platform 1.

[0040] The guide rod 14 is mounted on the surface of the guide member 13 through a bearing, that is, the guide rod 14 itself can rotate, and one end of the guide rod 14 is provided with a thread, such as Figure 3 As shown, a locking groove 22 that matches the thread of the guide rod 14 is opened on the side of the stepping platform 1. When the buckle 8 moves to the side of the stepping platform 1, by rotating the guide rod 14 into the locking groove 22, the buckle 8 can be used as a handle, which makes it more convenient to carry the stepping platform 1.

[0041] The present invention provides a pull-up auxiliary equipment for sports training. When in use, the treading platform 1 is first opened, the guide rod 14 is rotated to disengage from the inside of the locking groove 22, the inner tube 10 is stretched, the inner rod 11 is rotated out from the inside of the inner tube 10, the outer tube 9 is rotated from the inside of the threaded groove 12, and the buckle 8 is sleeved on the surface of the column. It is necessary to ensure that the inner tube 10 is in a completely stretched state, and then the inner rod 11 is rotated so that the buckle 8 and the ball of the guide member 13 are against the surface of the column, and then the elastic rope 4 and the spring buckle at one end of the suspension rope 3 are buckled, and then the other end is swung to pass through the top of the cross bar, and then the spring buckle at the other end is buckled on the suspension ring, so that the flexible pad 6 is attached to the surface of the cross bar, and then the anti-slip plate 21 is rotated to remove the stud 19 from the inside of the circular groove 18. , release the restraint on the supporting spring 17, and then the equipment can be used normally. When the user hangs on the cross bar, he first steps on the pedal board 2. In the first stage, the pedal board 2 and the stepping platform 1 descend as a whole, and the hanging rope 3 is in a stretched state. In the second stage, the pedal board 2 moves down to the surface of the stepping platform 1. The hanging rope 3 is pulled in the process but is still in a stretched state, until the stepping platform 1 and the stepping platform 2 are stabilized at a certain height by the tension of the hanging rope 3, and the user can hang on the cross bar more easily. When the user detaches from the cross bar, he also steps on the pedal board 2 first. During the whole process, the stepping platform 1 can be stably maintained at a certain height, and the user can get off the stepping platform 1 more safely, thereby ensuring safety during use.

[0042] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0044] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A sports training pull-up auxiliary equipment, characterized in that: The invention comprises a stepping platform (1) for a human body to stand on, a stepping pedal (2) which can be raised and lowered is arranged on the top of the stepping platform (1), a non-elastic hanging rope (3) is arranged between the stepping pedal (2) and the stepping platform (1), and the stepping platform (1) and the stepping pedal (2) are both suspended on a crossbar for pull-ups via the hanging rope (3); The surface of the treading platform (1) is also equipped with an elastic component which is also used to suspend the treading platform (1), and the elastic force of the elastic component is greater than the sum of the gravity of the treading platform (1) and the pedal board (2); The surface of the pedal platform (1) is equipped with a guide assembly with a supporting function, which is used to ensure that the pedal board (2) moves in the vertical direction.

2. A sports training pull-up auxiliary equipment according to claim 1, characterized in that: The elastic component comprises a plurality of elastic ropes (4) suspended on a crossbar, both ends of the elastic ropes (4) being hung on the hanging rings of the stepping platform (1) via spring buckles, the plurality of elastic ropes (4) being divided into two groups and respectively installed at symmetrical positions of the stepping platform (1), and the plurality of elastic ropes (4) being assembled and installed via a hook assembly installed on the crossbar.

3. A sports training pull-up auxiliary equipment according to claim 2, characterized in that: The hook assembly comprises a flexible plate-shaped hook (5), one side of the hook (5) is compounded with a flexible pad (6) with a large friction coefficient, and the other side of the hook (5) is provided with a plurality of rings (7) linearly arranged along the axis of the crossbar, and the elastic rope (4) and the suspension rope (3) are both passed through the inside of the ring (7) for assembly and installation.

4. A sports training pull-up auxiliary equipment according to claim 1, characterized in that: Limiting mechanisms for preventing the treading platform (1) from moving forwards, backwards, left, and right are installed on both sides of the treading platform (1).

5. A sports training pull-up auxiliary equipment according to claim 4, characterized in that: The limiting mechanism comprises an openable and closable ring buckle (8) with a ball bearing on the inner side, the ring buckle (8) is sleeved on the surface of the column supporting the cross bar, and a retractable connecting component is installed between the ring buckle (8) and the stepping platform (1), the connecting component comprises an outer tube (9) with a thread on the outer surface, a multi-section retractable inner tube (10) and an inner rod (11) installed in the inner tube (10), a thread groove (12) matching the thread of the outer tube (9) is opened on the side of the stepping platform (1), the outer tube (9) is installed at the position of the thread groove (12), and the inner rod (11) is installed on the surface of the ring buckle (8).

6. A sports training pull-up auxiliary equipment according to claim 5, characterized in that: The inner rod (11) is a threaded rod, and a section of the inner tube (10) connecting the inner rod (11) is a pipe containing internal threads. The inner rod (11) can be adapted to be installed on the threaded section of the inner tube (10), and the end of the inner rod (11) movably passes through the ring buckle (8), and the end is provided with an arc-shaped guide member (13) with a ball through the bearing mounting surface.

7. A sports training pull-up auxiliary equipment according to claim 6, characterized in that: A guide rod (14) for limiting the longitudinal position of the guide member (13) is installed on the outer side of the guide member (13), and the guide rod (14) movably penetrates the surface of the buckle (8).

8. A sports training pull-up auxiliary equipment according to claim 3, characterized in that: The stepping platform (1) and the pedal board (2) are both configured to be openable and closable and are connected by hinges. The middle of the stepping platform (1) is recessed for placing an elastic rope (4) and a suspension rope (3). The stepping platform (1) is provided with a groove (15) adapted to the pedal board (2) located directly below the pedal board (2). The guide assembly comprises a retractable multi-section guide tube (16). The guide tube (16) is installed with a support spring (17) to ensure that it is in an open state. A circular groove (18) for installing the guide tube (16) is provided in the groove (15).

9. A sports training pull-up auxiliary equipment according to claim 8, characterized in that: The diameter of each section of the guide tube (16) decreases gradually from top to bottom. A stud (19) having a diameter greater than the maximum diameter of the guide tube (16) is installed at the top of the guide tube (16). The top of the stud (19) movably penetrates the pedal (2) and is provided with an anti-slip plate (21) for preventing the pedal (2) from falling off. A rotatable knob plate (20) is threadedly sleeved on the surface of the stud (19). The knob plate (20) and the anti-slip plate (21) are respectively located on both sides of the pedal (2). The inner side of the circular groove (18) is provided with a thread matching the stud (19).

10. The pull-up auxiliary equipment for sports training according to claim 7, characterized in that: The guide rod (14) is mounted on the surface of the guide member (13) via a bearing, one end of the guide rod (14) is provided with a thread, and a locking groove (22) matching the thread of the guide rod (14) is provided on the side of the stepping platform (1).

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