Multifunctional back and abdominal training frame

Abstract

This utility model relates to the field of sports equipment technology, and in particular to a multifunctional abdominal and back training frame. The multifunctional abdominal and back training frame includes: a support base frame and a cushion support assembly. The cushion support assembly includes a telescopic support rod and an angle adjustment assembly disposed above the telescopic support rod. A cushion is fixed to the angle adjustment assembly. The telescopic support rod is used to adjust the height of the cushion, and the angle adjustment assembly is used to adjust the angle of the cushion. The angle adjustment plate in the angle adjustment assembly can rotate around a rotation axis. Multiple angle adjustment holes are evenly arranged on the lower edge of the angle adjustment plate. A fixing hole is provided on the telescopic support rod. An angle adjustment pin is also provided on the angle adjustment plate. The angle adjustment pin adjusts the angle adjustment holes at different positions to align with the fixing hole to form a through channel, thereby adjusting the tilt angle of the angle adjustment plate. Users can exercise abdominal muscles through back extension exercises and back muscles through forward flexion exercises. It can also be used as a Roman chair for exercise.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment technology, and in particular to a multifunctional abdominal and back training frame. Background Technology

[0002] Abdominal and back training racks are a common type of fitness aid, widely used in sports, rehabilitation training, and home fitness settings. These devices are primarily used to train the abdominal and back muscles, enhancing the strength and stability of the core muscles through bending and stretching movements.

[0003] Most abdominal and back training racks on the market currently use a one-piece cushion structure, which is fixed to the support structure of the training rack. While this design has certain advantages in terms of manufacturing cost, its function is relatively limited. It cannot be adjusted in angle or position according to different body types or training needs of users. During training, it is often impossible to find a position that conforms to the physiological curves or a comfortable angle, thus affecting training results and potentially causing uneven muscle use or excessive local strain. It also cannot adapt to diverse exercise movements and individualized usage needs. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a multifunctional abdominal and back training frame with adjustable cushion height and angle.

[0005] This utility model provides a multifunctional abdominal and back training frame, comprising:

[0006] The support base includes a first support rod and a second support rod arranged parallel to each other on a horizontal plane. One end of the first support rod is provided with a vertical cushion support assembly, and the second support rod is provided with a vertical support column.

[0007] The cushion support assembly includes a telescopic support rod and an angle adjustment assembly disposed above the telescopic support rod. A cushion is fixed on the angle adjustment assembly. The telescopic support rod is used to adjust the height of the cushion, and the angle adjustment assembly is used to adjust the angle of the cushion.

[0008] The angle adjustment component includes:

[0009] A rotating shaft is located at the top of the telescopic support rod;

[0010] There are two angle adjustment plates, each with a mounting hole at its upper end. The rotating shaft is coaxially engaged with the two mounting holes, and the two angle adjustment plates can rotate synchronously around the rotating shaft.

[0011] The lower edges of the two angle adjustment plates are evenly provided with multiple angle adjustment holes, the telescopic support rod is provided with a fixing hole, and the angle adjustment plate is also provided with an angle adjustment pin. The angle adjustment pin adjusts the angle adjustment holes at different positions to align with the fixing holes to form a through channel to adjust the tilt angle of the angle adjustment plate.

[0012] The angle adjustment assembly also includes a mounting plate, which is disposed above the angle adjustment plate. The cushion is fixed on the mounting plate, and the rotation of the angle adjustment plate causes the mounting plate and the cushion to rotate, thereby adjusting the angle of the cushion.

[0013] In this technical solution, the height of the backrest is adjusted by a telescopic support rod, and the tilt angle of the backrest is adjusted by an angle adjustment component. Users can exercise their abdominal muscles through back extension exercises and their back muscles through forward bending exercises. It can also be used as a Roman chair for exercise.

[0014] In some embodiments of this application, the center of the plurality of angle adjustment holes on the angle adjustment plate is at the same distance from the center of the mounting hole, and the angle adjustment hole is located on a circle with the center of the mounting hole as the center and the vertical distance from the center of the fixing hole to the axis of the rotating shaft as the radius.

[0015] In some embodiments of this application, a horizontally arranged mounting tube is fixed on the mounting plate, and the mounting tube has a plurality of adjustment slots evenly distributed along its length.

[0016] The bottom of the cushion is provided with fasteners, which cooperate with the adjustment slots at different positions to fix the cushion at different positions on the mounting tube.

[0017] In some embodiments of this application, the backrest includes a first backrest and a second backrest arranged side by side. The bottom of both the first backrest and the second backrest is provided with the fastener. Both the first backrest and the second backrest can move along the adjustment slot to adjust the distance between the first backrest and the second backrest. When used as a Roman chair for back muscle exercises, the first backrest and the second backrest support the thighs, leaving ample free space for other parts of the body, making it more comfortable for the user.

[0018] In some embodiments of this application, the bottom of the cushion is also fixed with a handle tube. The handle tube includes a fixing part and a hand grip part disposed at both ends of the fixing part. The fixing part is fixed to the bottom of the cushion. When the angle of the cushion is adjusted, the fixing part is adjusted synchronously, and the angle of the hand grip part is adjusted accordingly, so that users of different heights can perform forward or reverse parallel bar dips to exercise the pectoral muscles, deltoid muscles, triceps, etc.

[0019] In some embodiments of this application, the telescopic support rod includes an outer tube and an inner tube sleeved inside the outer tube. The inner tube has a length adjustment hole along its length direction. An adjustment knob is provided above the outer tube. The adjustment knob is adapted to the length adjustment hole to adjust the length of the telescopic support rod.

[0020] In some embodiments of this application, a swing frame is provided on the top of the support column. The swing frame includes a rotating arm and a training arm that are perpendicular to each other. The end of the rotating arm is rotatably connected to the support column, and the training arm is located above the cushion.

[0021] An adjustment turntable is fixed to the top of the support column. Swing adjustment holes are evenly distributed along the edge of the adjustment turntable. A swing adjustment knob that matches the swing adjustment holes is provided on the rotating arm. The swing adjustment knob cooperates with the swing adjustment holes to adjust the angle between the rotating arm and the support column, thereby adjusting the position of the training arm.

[0022] In some embodiments of this application, the other end of the first support rod is provided with a foot pedal assembly, including a foot pedal support frame, a foam rod fixed on the foot pedal support frame, and a foot pedal rod. The foam rod is located above the foot pedal rod. The foot pedal support frame is a telescopic structure. The distance between the foot pedal rod and the cushion in the horizontal direction can be adjusted by adjusting the length of the foot pedal support frame to meet the exercise needs of people of different heights.

[0023] In some embodiments of this application, the support base further includes a rear base frame, disposed at the end of the first support rod near the telescopic support rod, wherein the rear base frame is... The rear base frame, with its distinctive structure, increases the contact area between the support base frame and the ground, thereby improving the stability of the abdominal and back trainer.

[0024] Based on the above technical solution, the cushion support component adjusts the height of the cushion through a telescopic support rod, adjusts the tilt angle of the cushion through an angle adjustment component, and adjusts the training arm of the swing frame to the user's back. The user can exercise abdominal muscles through back extension exercises and exercise back muscles through forward flexion exercises by adjusting the training arm of the swing frame to the user's chest.

[0025] It can also be used as a Roman chair for exercise; adjust the height and angle of the cushion so that your hips are aligned with the top of the cushion, place your hands in front of your chest or behind your head, bend forward, and then use your back and gluteal muscles to extend your body back to the starting position. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the multifunctional abdominal and back training frame according to an embodiment of the present utility model;

[0028] Figure 2 This is a structural schematic diagram of the multifunctional abdominal and back training frame from another perspective of an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the inner tube structure according to an embodiment of the present utility model;

[0030] Figure 4 This is a schematic diagram of the angle adjustment component according to an embodiment of the present invention;

[0031] In the picture:

[0032] 10. Support base frame; 11. First support rod; 12. Second support rod; 13. Connecting rod; 14. Rear base frame; 20. Cushion support assembly; 21. Telescopic support rod; 211. Outer tube; 2111. Adjustment knob; 212. Inner tube; 2121. Length adjustment hole; 2122. Fixing hole; 22. Angle adjustment assembly; 221. Rotating shaft; 222. Angle adjustment plate; 2221. Mounting hole; 2222. Angle adjustment hole; 2223. Angle adjustment pin; 223. Installation... Mounting plate; 224, mounting tube; 2241, adjusting slot; 225, fixing rod; 23, supporting diagonal rod; 30, backrest; 31, first backrest; 32, second backrest; 40, handle tube; 41, fixing part; 42, hand grip; 50, swing frame; 51, rotating arm; 511, swing adjustment knob; 52, training arm; 53, adjusting turntable; 531, swing adjustment hole; 60, foot pedal assembly; 61, foot pedal support frame; 62, foam rod; 63, foot pedal rod; 64, vertical rod. Detailed Implementation

[0033] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] As attached Figures 1-4 As shown, this embodiment provides a multifunctional abdominal and back training frame, including:

[0038] The support base 10 includes a first support rod 11 and a second support rod 12 arranged parallel to each other on a horizontal plane. A connecting rod 13 is also provided between the first support rod 11 and the second support rod 12. The connecting rod 13 is perpendicular to the first support rod 11 and the second support rod 12. One end of the connecting rod 13 is close to the rear end of the first support rod, and the other end passes through the middle of the second support rod 12 and continues to extend for a certain length to increase the stability of the support base 10.

[0039] A vertical cushion support assembly 20 is provided at the rear end of the first support rod 11. A cushion 30 is fixed on the angle adjustment assembly. The cushion support assembly 20 includes a telescopic support rod 21 and an angle adjustment assembly 22 provided above the telescopic support rod 21. The telescopic support rod 21 is used to adjust the height of the cushion 30, and the angle adjustment assembly is used to adjust the angle of the cushion 30.

[0040] like Figure 2As shown, the telescopic support rod 21 is an inclined rod. To ensure the stability of the telescopic support rod, a support diagonal rod 23 is provided between the first support rod 11 and the telescopic support rod 21. Part of the first support rod 11, the support diagonal rod 23, and part of the telescopic support rod 21 form a stable triangular support structure, which improves the stability of the telescopic support rod 21.

[0041] The telescopic support rod 21 includes an outer tube 211 and an inner tube 212 sleeved inside the outer tube 211. The inner tube 212 can slide up and down along the inner wall of the outer tube 211, such as... Figure 3 As shown, the inner tube 212 has a long strip-shaped length adjustment hole 2121 along its length direction, and the outer tube 211 has an adjustment knob 2111 on its top. The adjustment knob 2111 is adapted to the length adjustment hole 2121. The adjustment knob 2111 and the length adjustment hole 2121 are matched at different positions to adjust the length of the telescopic support rod, thereby adjusting the height of the cushion 30.

[0042] In another embodiment, the length adjustment hole 2121 can also be multiple circular holes, evenly distributed along the length of the inner tube 212, and the adjustment knob 2111 cooperates with the length adjustment hole 2121 at different positions to adjust the length of the telescopic support rod.

[0043] like Figure 4 As shown, the angle adjustment component 22 includes:

[0044] A rotating shaft 221 is located at the top of the inner tube 212 of the telescopic support rod 21. The axis of the rotating shaft 221 is perpendicular to the axis of the telescopic support rod 21, and the rotating shaft 221 can rotate around its own axis.

[0045] There are two angle adjustment plates 222. Each angle adjustment plate 222 has a mounting hole 2221 at its upper end. The two mounting holes 2221 are coaxially engaged with the rotating shaft 212, and the two angle adjustment plates 222 can rotate synchronously around the rotating shaft 221.

[0046] The angle adjustment plate 222 has an irregular shape. Its upper edge is a straight section and is fixed to the mounting plate 223. Its lower edge is an arc section and has multiple angle adjustment holes 2222 evenly arranged on the lower edge. The upper end of the inner tube 212 is provided with a fixing hole 2122. An angle adjustment pin 2223 is also provided on the angle adjustment plate 222. The angle adjustment pin 2223 adjusts the angle adjustment holes 2222 and the fixing hole 2122 at different positions to form a through channel to adjust the tilt angle of the angle adjustment plate 222.

[0047] The two sides of the lower edge arc segment of the two angle adjustment plates 222 are connected by a fixing rod 225 to form a whole, so that the two angle adjustment plates 222 rotate synchronously;

[0048] Specifically, the center of each of the multiple angle adjustment holes 2222 on the angle adjustment plate 222 is equidistant from the center of the mounting hole 2221. The angle adjustment holes 2222 are located on a circle with the center of the mounting hole 2221 as the center and the vertical distance from the center of the fixing hole 2221 to the axis of the rotating shaft 212 as the radius. When the angle adjustment plate 222 is rotated, the angle adjustment holes 2222 at different positions cooperate with the fixing hole 2122 to adjust the tilt angle of the angle adjustment plate 222.

[0049] The cushion 30 is fixed on the mounting plate 223 above the angle adjustment plate 222. The rotation of the angle adjustment plate 222 causes the mounting plate 223 and the cushion 30 to rotate, so as to adjust the angle of the cushion 30.

[0050] To facilitate adjustment of the horizontal position of the cushion 30, a horizontally arranged mounting tube 224 is fixed on the mounting plate 223. Multiple adjustment slots 2241 are evenly distributed along the length of the mounting tube 224. Fasteners are provided at the bottom of the cushion 30. The fasteners cooperate with the adjustment slots 2241 at different positions to fix the cushion 30 in the adjustment slots 2241 of the mounting tube 224. Loosening the fasteners allows the cushion 30 to cooperate with the adjustment slots 2241 at different positions. Tightening the fasteners fixes the cushion 30 in that position.

[0051] In another embodiment, the adjustment slot 2241 can be an elongated slot, and the fasteners fix the pad 30 at different positions in the adjustment slot 2241.

[0052] Furthermore, to increase the comfort of the backrest 30 during exercise, the backrest 30 includes a first backrest 31 and a second backrest 32 arranged side by side. The bottom of both the first backrest 31 and the second backrest 32 are provided with fasteners. Both the first backrest 31 and the second backrest 32 can move along the adjustment slot 2241 to adjust the distance between the first backrest 31 and the second backrest 32. When the abdominal and back training frame of this embodiment is used as a Roman chair for back muscle training, the first backrest 31 and the second backrest 32 support the thighs of the legs, and other parts of the body have sufficient free space, making it more comfortable for the user.

[0053] The bottom of the first cushion 31 and the second cushion 32 are also fixed with handle tubes 40. The handle tubes 40 include a fixing part 41 and a hand grip part 42 set at both ends of the fixing part 41. The fixing part 41 is parallel to the mounting tube 224, and the hand grip part 42 is perpendicular to the fixing part 41. The fixing part 41 is fixed to the bottom of the first cushion 31 and the second cushion 32 near the upper edge. When the angle of the first cushion 31 and the second cushion 32 is adjusted, the fixing part 41 is adjusted synchronously, and the height and angle of the hand grip part 42 are adjusted accordingly, so that users of different heights can perform forward or reverse parallel bar dips to exercise the pectoral muscles, deltoid muscles, triceps, etc.

[0054] The second support rod 12 is provided with a vertical support column 121, and a horizontal mounting rod 122 is provided at the top of the support column 121. The mounting rod 122 is rotatably connected to the swing frame 50. The swing frame 50 has an L-shaped structure, including a rotating arm 51 and a training arm 52. The training arm 52 is arranged horizontally and is located above the first cushion 31 and the second cushion 32. The end of the rotating arm 51 is rotatably connected to the mounting rod 122, and the rotating arm 51 can rotate around the mounting rod 122.

[0055] The mounting rod 122 is also fixedly connected to the adjustment turntable 53. The circumferential edge of the adjustment turntable 53 is evenly distributed with swing adjustment holes 531. The mounting rod 122 is fixed to the center of the adjustment turntable 53. The rotating arm 51 is provided with a swing adjustment knob 511 that matches the swing adjustment hole 531. The swing adjustment knob 511 cooperates with the swing adjustment hole 531 to adjust the angle between the rotating arm 51 and the support column 121. Since the training arm 52 is fixed to the rotating arm 51, the position of the training arm 52 is adjusted. The training arm 52 has foam on it.

[0056] The other end of the first support rod 11 is provided with a foot pedal assembly 60, including a foot pedal support frame 61. The foot pedal support frame 61 is above the first support rod 11 and parallel to the first support rod 11. Two foam rods 62 are horizontally symmetrically arranged at the end of the first support rod 11. The two foam rods 62 are collinear and perpendicular to the foot pedal support frame 61. The end of the foot pedal support frame is also provided with a downwardly extending vertical rod 64. Two foot pedals 63 are symmetrically arranged at the top of the vertical rod 64. The foot pedals 63 are located below the foam rods and are fitted with anti-slip sleeves. The foot pedal support frame 61 is a telescopic structure. The foot pedal support frame 61 is similar in structure to the telescopic support rod 21 and its length in the horizontal direction can be adjusted. The distance between the foot pedals 63 and the backrest 30 in the horizontal direction can be adjusted to meet the exercise needs of people of different heights.

[0057] The support base 10 also includes a rear base 14, which is located at the end of the first support rod 11 near the telescopic support rod 21. The rear base 14 is... The design increases the contact area between the support base 10 and the ground, improving the stability of the abdominal and back trainer.

[0058] When performing abdominal and back training, adjust the height and angle of the first backrest 31 and the second backrest 32, and the footrest support 61 to a suitable position. The user sits on the first backrest 31 and the second backrest 32, with their feet on the footrest 63 and their insteps hooked onto the foam rod 62. Adjust the rotating arm 51 to position the training arm 52 towards the user's back, allowing the user to exercise their abdominal muscles by extending their lower back; or adjust the training arm 52 towards the user's chest, allowing the user to exercise their back muscles by bending forward.

[0059] The aforementioned abdominal and back trainer can also be used as a Roman chair for exercise. Fix your heels between the foam rod 62 and the foot pedal 63, rest your abdomen on the backrest, adjust the height and angle of the first backrest 31 and the second backrest 32 so that your hips are aligned with the top of the mat, place your hands in front of your chest or behind your head, bend forward, and then use your back and gluteal muscles to extend your body back to the initial position.

[0060] There is an appropriate gap between the first cushion 31 and the second cushion 32. When exercising the back muscles of the Roman chair, the first cushion 31 and the second cushion 32 support the abdomen, while other parts of the body have ample free space, making it more comfortable for the user.

[0061] Users can use the hand grips 42 at both ends of the handle tube 40 to perform forward and reverse parallel bar dips, exercising the pectoral muscles, deltoids, triceps, etc.

[0062] Based on the above technical solution, the cushion support component adjusts the height of the cushion through a telescopic support rod, adjusts the tilt angle of the cushion through an angle adjustment component, and adjusts the training arm of the swing frame to the user's back. The user can exercise abdominal muscles through back extension exercises and exercise back muscles through forward flexion exercises by adjusting the training arm of the swing frame to the user's chest.

[0063] It can also be used as a Roman chair for exercise; adjust the height and angle of the cushion so that your hips are aligned with the top of the cushion, place your hands in front of your chest or behind your head, bend forward, and then use your back and gluteal muscles to extend your body back to the starting position.

[0064] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0065] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A multi-functional back and abdominal training frame, characterized by: include: The support base includes a first support rod and a second support rod arranged parallel to each other on a horizontal plane. One end of the first support rod is provided with a vertical cushion support assembly, and the second support rod is provided with a vertical support column. The cushion support assembly includes a telescopic support rod and an angle adjustment assembly disposed above the telescopic support rod. A cushion is fixed on the angle adjustment assembly. The telescopic support rod is used to adjust the height of the cushion, and the angle adjustment assembly is used to adjust the angle of the cushion. The angle adjustment component includes: A rotating shaft is located at the top of the telescopic support rod; There are two angle adjustment plates, each with a mounting hole at its upper end. The rotating shaft is coaxially engaged with the two mounting holes, and the two angle adjustment plates can rotate synchronously around the rotating shaft. The lower edges of the two angle adjustment plates are evenly provided with multiple angle adjustment holes, the telescopic support rod is provided with a fixing hole, and the angle adjustment plate is also provided with an angle adjustment pin. The angle adjustment pin adjusts the angle adjustment holes at different positions to align with the fixing holes to form a through channel to adjust the tilt angle of the angle adjustment plate. The angle adjustment assembly also includes a mounting plate, which is disposed above the angle adjustment plate. The cushion is fixed on the mounting plate, and the rotation of the angle adjustment plate causes the mounting plate and the cushion to rotate, thereby adjusting the angle of the cushion.

2. The multi-functional back and abdominal training bench as recited in claim 1, wherein The centers of the multiple angle adjustment holes on the angle adjustment plate are all equidistant from the center of the mounting hole. The angle adjustment holes are located on a circle with the center of the mounting hole as the center and the vertical distance from the center of the fixing hole to the axis of the rotating shaft as the radius.

3. The multi-functional back and abdominal training bench as recited in claim 1, wherein A horizontally arranged mounting tube is fixed on the mounting plate, and multiple adjustment slots are evenly distributed along the length of the mounting tube. The bottom of the cushion is provided with fasteners, which cooperate with the adjustment slots at different positions to fix the cushion at different positions on the mounting tube.

4. The multi-functional back and abdominal training bench as recited in claim 3, wherein The cushion includes a first cushion and a second cushion arranged side by side. The bottom of both the first cushion and the second cushion is provided with the fastener. Both the first cushion and the second cushion can move along the adjustment slot to adjust the distance between the first cushion and the second cushion.

5. The multi-functional back and abdominal training bench as recited in claim 3, wherein The bottom of the cushion is also fixed with a handle tube, which includes a fixing part and a hand grip part disposed at both ends of the fixing part. The fixing part is fixed to the bottom of the cushion. When the cushion angle is adjusted, the fixing part is adjusted synchronously, and the angle of the hand grip part is adjusted accordingly.

6. The multi-functional back and abdominal training bench as recited in claim 1, wherein The telescopic support rod includes an outer tube and an inner tube fitted inside the outer tube. The inner tube has a length adjustment hole along its length direction. An adjustment knob is provided above the outer tube. The adjustment knob is adapted to the length adjustment hole to adjust the length of the telescopic support rod.

7. The multi-functional back and abdominal training bench as recited in claim 1, wherein The top of the support column is provided with a swing frame, which includes a rotating arm and a training arm that are perpendicular to each other. The end of the rotating arm is rotatably connected to the support column, and the training arm is located above the cushion. An adjustment turntable is fixed to the top of the support column. Swing adjustment holes are evenly distributed along the edge of the adjustment turntable. A swing adjustment knob that matches the swing adjustment holes is provided on the rotating arm. The swing adjustment knob cooperates with the swing adjustment holes to adjust the angle between the rotating arm and the support column, thereby adjusting the position of the training arm.

8. The multi-functional back and abdominal training bench as recited in claim 1, wherein The other end of the first support rod is provided with a foot pedal assembly, including a foot pedal support frame, a foam rod fixed on the foot pedal support frame, and a foot pedal rod. The foam rod is located above the foot pedal rod. The foot pedal support frame is a telescopic structure, and the distance between the foot pedal rod and the cushion in the horizontal direction can be adjusted by adjusting the length of the foot pedal support frame.

9. The multifunctional abdominal and back training frame according to claim 1, characterized in that, The support chassis further comprises a rear chassis arranged at the end of the first support rod close to the telescopic support rod, the rear chassis is in the shape of a trapezoid, and the rear chassis is used to increase the contact area of the support chassis with the ground.

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