WO2024125553A1

WO2024125553A1 - Fitness chair

Info

Publication number: WO2024125553A1
Application number: PCT/CN2023/138447
Authority: WO
Inventors: 加西亚·洛佩斯帕布罗·阿特鲁
Original assignee: 格鲁特建筑商有限责任公司
Priority date: 2022-12-14
Filing date: 2023-12-13
Publication date: 2024-06-20
Also published as: CN219398849U

Abstract

A fitness chair (140), comprising a supporting frame (10), a body supporting portion (20), and a hip supporting portion (30), wherein one end of the body supporting portion (20) and one end of the hip supporting portion (30) are both connected to the supporting frame (10); the supporting frame (10) comprises two longitudinal members (13), and the two longitudinal members (13) are located at two sides of the extension direction of the body supporting portion (20), respectively; each of the two longitudinal members (13) is provided with a plurality of connecting rods (120) in the extension direction of the longitudinal member, and the connecting rods (120) are used for detachably mounting a resistance belt (110). The resistance belt (110) is provided, and the position of the resistance belt (110) on the longitudinal members (13) can be adjusted according to the exercise requirements of a user so that the resistance belt is located at positions corresponding to different parts of a human body, thereby applying resistance to different parts of the human body and enhancing the exercise effect.

Description

A fitness chair

Technical Field

The present application relates to the field of fitness equipment, and in particular to a fitness chair.

Background technique

With the improvement of living standards, people are more and more aware of health, and more and more people are keen on fitness exercises. When exercising, fitness chairs are often used.

Nowadays, a commonly used fitness chair comprises a support seat and a trunk support portion and a hip support portion horizontally fixed on the support seat.

With respect to the above-mentioned related technologies, the inventor believes that when a user uses the fitness chair for exercise, the fitness chair can only play a supporting and cushioning role, and its functions are relatively simple, which is difficult to meet the user's fitness needs.

Summary of the invention

In order to overcome the defects in the above-mentioned related technologies and make the fitness chair suitable for diversified usage scenarios, the present application provides a fitness chair.

The present application provides a fitness chair, which adopts the following technical solution:

A fitness chair comprises a support frame, a trunk support part and a hip support part; one end of the trunk support part and one end of the hip support part are both connected to the support frame; the support frame comprises two longitudinal members, which are respectively located on both sides of the extension direction of the trunk support part; a plurality of connecting rods are arranged on the two longitudinal members along their own extension direction, and the connecting rods are used for detachably installing resistance bands.

By adopting the above technical solution, by setting a connecting rod on the longitudinal member, the resistance band can be detachably installed on the connecting rod. According to the user's exercise needs, the resistance band is installed on different connecting rods, so that the resistance band is placed on different parts of the user's body. The resistance band can be one, and the two ends of the resistance band are respectively fixed on the connecting rods of the two longitudinal members. When the user is exercising, the resistance band can be passed around the human body to apply resistance to different parts of the human body to enhance the exercise effect. The resistance band can also be two, and the two resistance bands are respectively tied to the connecting rods of the two longitudinal members. When in use, the other ends of the two resistance bands are grasped by both hands to exercise the shoulders and chest.

In some embodiments, the longitudinal member is provided with a first sliding hole at each connecting rod position, and the connecting rod is slidably disposed in the first sliding hole.

By adopting the above technical solution, when the resistance band is needed, the connecting rod is moved out of the first sliding hole and the resistance band is tied to the connecting rod; when the resistance band is not needed, the connecting rod is moved into the first sliding hole.

In some embodiments, the support frame includes a first cross member and a second cross member, the first cross member is located at one end of the torso support portion away from the hip support portion, the second cross member is located at one end of the hip support portion away from the torso support portion, and the resistance band is detachably connected to the first cross member and the second cross member.

By adopting the above technical solution, the resistance band is installed on the first horizontal member or the second horizontal member. When in use, the user lies face down on the fitness chair, and then the resistance band is wrapped around the user's feet. The user moves his legs up and down, and the resistance band forms resistance on the user's legs to enhance the training effect on the legs and buttocks.

In some embodiments, at least two fixing rods are disposed on the first cross member and the second cross member, and the resistance band is detachably connected to the fixing rods.

By adopting the above technical solution, the resistance band is fixed to the first horizontal member or the second horizontal member through the fixing rod. This method makes it easier to install and remove the resistance band.

In some embodiments, the fixation rod is L-shaped.

By adopting the above technical solution and setting the fixing rod to be L-shaped, it can help prevent the resistance band from slipping off the fixing rod during use.

In some embodiments, widened plates are provided on both sides of an end of the torso supporting portion away from the hip supporting portion.

By adopting the above technical solution, currently, the width of the standard torso support part is not enough to support the entire back of the user. By providing a widening plate, the contact area between the user's back and the torso support part can be increased, making the user more comfortable when using it.

In some embodiments, the trunk supporting portion and the widened plate form a widened section, and the width of the widened section along a direction perpendicular to the extending direction of the trunk supporting portion is 35 cm-55 cm.

By adopting the above technical solution, the length of the widened section is set between 35 cm and 55 cm, which can basically fully support the entire back of the user.

In some embodiments, the width of the hip support portion along a direction perpendicular to the extension direction of the torso support portion is 35 cm-55 cm.

By adopting the above technical solution, when the user performs hip bridge exercise, the widened hip support portion is used for the user to place the feet. Since the upper surface area of the hip support portion is increased, the user can spread the legs apart and perform exercise at a distance as wide as the hips when using the hip bridge, which is more convenient for the user to perform exercise.

In some embodiments, one end of the torso support portion and one end of the hip support portion are both connected to the support portion. The frame is rotatably connected, and the fitness chair also includes a first limiting component for limiting the rotation position of the trunk support part, and a second limiting component for limiting the rotation position of the hip support part.

By adopting the above technical solution, the trunk support part and the hip support part are arranged to be rotatable, the inclination angles of the trunk support part and the hip support part can be adjusted, and the position of the trunk support part is limited by the first limiting component, and the position of the hip support part is limited by the second limiting component, so that the user can adjust the inclination angles of the trunk support part and the hip support part according to needs and perform different exercises.

In some embodiments, a position where the torso supporting portion is tilted downward at one end away from the hip supporting portion is defined as a negative tilt position.

The trunk support part has at least two negative tilt positions, including a first position and a second position. When the trunk support part is in the first position, the distance between the lower end of the trunk support part and the ground is 30 cm to 35 cm. When the trunk support part is in the second position, the distance between the lower end of the trunk support part and the ground is 10 cm lower than that in the first position.

By adopting the above technical solution, the trunk support part is adjusted to the negatively inclined position, and the user can perform hip bridge exercises on the floor. The user puts both feet on the ground and leans against the negatively inclined trunk support part. The trunk support part provides a suitable surface for the user to prevent the user from sliding toward the hip support part. By setting the first position and the second position, when the user performs hip bridge exercises on the floor, the reaction force from the feet can be offset, and the stability during use is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. By arranging the resistance band on the longitudinal member, the resistance band can be adjusted or positioned at different positions according to the user's exercise needs, so that the resistance band can be placed on different parts of the user's body. When the user is exercising, the resistance band can be passed around the human body to apply resistance to different parts of the human body, thereby enhancing the exercise effect.

2. By adopting the above technical solution, the trunk support part is adjusted to the negatively inclined position, and the user can perform hip bridge exercises on the floor. The user places both feet on the ground and leans against the negatively inclined trunk support part. The trunk support part provides a suitable surface for the user to prevent the user from sliding toward the hip support part. By setting the first position and the second position, when the user performs hip bridge exercises on the floor, the reaction force from the feet can be offset, and the stability during use is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the overall structure of a fitness chair embodiment 1 of the present application.

FIG. 2 is a schematic diagram of the structure of the first position-limiting assembly and the second position-limiting assembly in Example 1 of the present application.

FIG. 3 is a schematic structural diagram of the first limiting component in Example 2 of the present application.

FIG. 4 is a schematic diagram of the structure of the second limiting assembly in Example 2 of the present application.

FIG. 5 is a schematic structural diagram of a fixing rod in Example 3 of the present application.

FIG. 6 is a schematic diagram of the structure of the connecting rod in Example 3 of the present application.

Description of the accompanying drawings: 10, support frame; 11, first horizontal member; 12, second horizontal member; 13, longitudinal member; 14, first support member; 15, second support member; 20, trunk support portion; 30, buttocks support portion; 40, widening plate; 50, widening section; 60, protective pad; 70, convex portion; 80, arc surface; 90, first limiting component; 91, first arc strip; 92, first insertion rod; 93, first limiting hole; 94, second limiting hole; 95, first connecting member; 96, first adjusting member; 97, first limiting rod; 98, first slot; 99, fifth limiting hole; 100, second limiting component; 1 01, second arc strip; 102, second plug rod; 103, third limiting hole; 104, fourth limiting hole; 105, second connecting member; 106, second adjusting member; 107, second limiting rod; 108, second slot; 109, sixth limiting hole; 110, resistance band; 120, connecting rod; 121, first inner limiting member; 122, first outer limiting member; 123, first sliding hole; 124, first clearance groove; 130, fixing rod; 131, second inner limiting member; 132, second outer limiting member; 133, second sliding hole; 134, second clearance groove; 140, fitness chair; 150, limiting block

Detailed ways

The present application is further described in detail below in conjunction with Figures 1-6.

The embodiment of the present application discloses a fitness chair 140 .

Example 1

1 , a fitness chair 140 includes a support frame 10, a trunk support portion 20 and a hip support portion 30. The trunk support portion 20 and the hip support portion 30 are both flat-plate shaped. The length direction of the trunk support portion 20 is its extension direction, and the width direction of the trunk support portion 20 is perpendicular to its extension direction. The width directions of the trunk support portion 20 and the hip support portion 30 are both horizontally arranged, and the hip support portion 30 is located at one end of the length direction of the trunk support portion 20. The trunk support portion 20 and the hip support portion 30 are both rotatably connected to the support frame 10, and the rotation axes of the two are collinear and arranged along the width direction of the trunk support portion 20.

1 , two widening plates 40 are provided at one end of the trunk support part 20 away from the hip support part 30, and the two widening plates 40 are respectively located at both ends of the width direction of the trunk support part 20. The trunk support part 20 and the two widening plates 40 are integrally formed to form a widening section 50, and the length of the widening section 50 along the width direction of the trunk support part 20 is 45 cm. A protective pad 60 is installed at one end of the trunk support part 20 away from the hip support part 30, and the protective pad 60 covers the top and edge of the trunk support part 20.

1, the width of the buttocks support portion 30 is also 45 cm. A convex portion 70 is integrally formed at the middle position of one end, and arc surfaces 80 are formed at both ends of the trunk support portion 20 in the width direction at the position where the convex portion 70 is connected to the hip support portion 30. When in use, the user places both legs on both sides of the convex portion 70 respectively. The setting of the arc surface 80 makes it easier for the user to place his legs, making it more comfortable to use.

1 , the support frame 10 includes a first transverse member 11, a second transverse member 12 and two longitudinal members 13. The first transverse member 11, the second transverse member 12 and the two longitudinal members 13 together form a frame shape. The longitudinal members 13 are arranged along the length direction of the trunk support portion 20, and the two longitudinal members 13 are respectively located on both sides of the length direction of the trunk support portion 20, the first transverse member 11 is located at one end of the trunk support portion 20 away from the hip support portion 30, and the second transverse member 12 is located at one end of the hip support portion 30 away from the trunk support portion 20.

1 , the support frame 10 further includes a first support member 14 and a second support member 15, wherein the length of the first support member 14 is greater than the length of the second support member 15. One end of the first support member 14 in the length direction is fixed to the first transverse member 11, and one end of the second support member 15 in the length direction is fixed to the second transverse member 12, and one end of the first support member 14 away from the first transverse member 11 is fixedly connected to one end of the second support member 15 away from the second transverse member 12.

1 , one end of the trunk support 20 close to the hip support 30 is rotatably connected to the connection between the first support member 14 and the second support member 15. The fitness chair 140 further includes a first position limiting component 90 for limiting the position of the trunk support 20.

1 and 2, in this embodiment, the first limit assembly 90 includes a first arc-shaped bar 91 and a first insertion rod 92. The first arc-shaped bar 91 is fixed to the bottom of the trunk support part 20, the straight line along the width direction of the trunk support part 20 where the center of the first arc-shaped bar 91 is located is colinear with the rotation axis of the trunk support part 20, and the plane where the radius of the first arc-shaped bar 91 is located is a vertical plane. The radius of the first arc-shaped bar 91 is smaller than the distance from the center of the first arc-shaped bar 91 to the ground.

1 and 2, the first arc strip 91 passes through the first support member 14 and is slidably connected to the first support member 14. The first arc strip 91 is provided with a plurality of first limiting holes 93 equidistantly around its own center in the circumferential direction, and the first support member 14 is provided with a second limiting hole 94. The first insertion rod 92 passes through the second limiting hole 94 and the corresponding first limiting hole 93 along the width direction of the trunk support portion 20 to limit the trunk support portion 20 at a desired position.

The position where the end of the trunk support part 20 away from the hip support part 30 is tilted downward is defined as a negative tilt position. In this embodiment, the trunk support part 20 has two negative tilt positions, namely the first position and the second position. When the trunk support part 20 is in the first position, the distance between the lower end of the trunk support part 20 and the ground is 30cm-35cm. When the trunk support part 20 is in the second position, the distance between the lower end of the trunk support part 20 and the ground is 10cm lower than that in the first position.

The trunk support 20 is adjusted to the negative tilt position, and the user can perform hip bridge exercises on the floor. The user places both feet on the floor and leans against the negatively tilted trunk support 20. The trunk support 20 provides the user with an appropriate The first position and the second position are provided to prevent the user from sliding toward the hip support part 30. Since the widening plate 40 is provided at the trunk support part 20 to form a widening section 50, a sufficient area can be provided for the back to support the back. In addition, the distance between the lower end of the trunk support part 20 and the ground is 30cm-35cm, which is more convenient for the user to perform hip bridge exercises on the floor. By setting the first position and the second position, when the user performs hip bridge exercises on the floor, the reaction force from the feet can be offset, and the stability during use is improved.

1 and 2 , one end of the hip support portion 30 close to the trunk support portion 20 is also rotatably connected to the connection between the first support member 14 and the second support member 15 . The fitness chair 140 further includes a second position limiting assembly 100 for limiting the position of the hip support portion 30 .

1 and 2, in this embodiment, the second limit assembly 100 includes a second arc-shaped bar 101 and a second insertion rod 102. The second arc-shaped bar 101 is fixed to the bottom of the hip support portion 30, and the second arc-shaped bar 101 is co-centered with the first arc-shaped bar 91, and the plane where the radius of the second arc-shaped bar 101 lies is a vertical plane. The radius of the second arc-shaped bar 101 is smaller than the radius of the first arc-shaped bar 91.

1 and 2, the second arc strip 101 passes through the second support member 15 and is slidably connected to the second support member 15. The second arc strip 101 is provided with a plurality of third limiting holes 103 equidistantly around its own center, a limiting block 150 is fixed on the second support member 15, a fourth limiting hole 104 is provided on the limiting block 150, and the second insertion rod 102 passes through the fourth limiting hole 104 and the corresponding third limiting hole 103 along the width direction of the trunk support portion 20 to limit the hip support portion 30 at a desired position.

The trunk support part 20 and the hip support part 30 can be rotated according to the needs of the user, and then the position of the trunk support part 20 can be limited by the first insertion rod 92, and the position of the hip support part 30 can be limited by the second insertion rod 102, so that the trunk support part 20 and the hip support part 30 form an inclined plane for the user to perform exercises such as hip bridge.

1 , a resistance band 110 is provided on the fitness chair 140. A plurality of connecting rods 120 are fixed to the two longitudinal members 13, and the plurality of connecting rods 120 are equidistantly distributed along the extending direction of the longitudinal members 13. The positions of the connecting rods 120 on the two longitudinal members 13 correspond to each other. The two ends of the resistance band 110 in the length direction are respectively tied to the connecting rods 120 on the two longitudinal members 13.

When performing hip bridge exercises, the two ends of the resistance band 110 in the length direction are respectively tied to the connecting rods 120 of the two longitudinal members 13, and are wrapped around the trunk support part 20 and the human body so that the resistance band 110 is located at the user's hips. Therefore, when the user performs hip bridge exercises, the resistance band 110 forms resistance to the buttocks, thereby enhancing the exercise effect.

When doing chest exercises, the resistance band 110 is adjusted relative to the trunk support 20 and tied to different connecting rods 120 so that the resistance band 110 is located at the user's chest position and the user lies on the trunk support 20. When doing this, the resistance band 110 is pulled by hand to perform a chest exercise.

1 , two fixing rods 130 are respectively disposed on the first cross member 11 and the second cross member 12 .

The fixing rod 130 on the first cross member 11 is L-shaped, and the two are fixedly connected. A portion of the L-shaped fixing rod 130 is arranged in the vertical direction, and the other portion is arranged in the width direction of the trunk support portion 20, and the opening formed between the fixing rod 130 and the first cross member 11 is away from the trunk support portion 20. The fixing rod 130 on the second cross member 12 is linear, and the two are fixedly connected.

When doing hip and leg exercises, the two ends of the resistance band 110 in the length direction are tied to the fixing rod 130 respectively, and the trunk support part 20 is adjusted so that the end of the trunk support part 20 away from the hip support part 30 is tilted upward. At this time, the user lies face down on the trunk support part 20, with the hips located at the end of the trunk support part 20 away from the hip support part 30, and the resistance band 110 is put on the ankle. The user moves the legs up and down, and the resistance band 110 forms resistance to enhance the training effect of the legs and hips.

The implementation principle of Example 1 is:

The fitness chair 140 can be used in a variety of different ways. The hip support part 30 and the trunk support part 20 can be adjusted to a horizontal position, or the hip support part 30 and the trunk support part 20 can be adjusted to tilt at a certain angle, and the positions of the trunk support part 20 and the hip support part 30 are limited by the first limiting component 90 and the second limiting component 100 respectively. The user lies on the trunk support part 20 and performs various exercises such as sit-ups and hip bridges.

In addition, the two ends of the resistance band 110 can be tied to the two longitudinal members 13 respectively, and passed around the trunk support 20 and the human body, and the resistance band 110 can be located at the hip position. When doing the hip bridge exercise, the resistance to the buttocks is increased, thereby enhancing the exercise effect.

The two ends of the resistance band 110 can also be tied to the two longitudinal members 13 respectively, and passed around the trunk support 20 and the human body, and the resistance band 110 is located at the chest position. The user pulls the resistance band 110 to perform chest exercises.

The resistance band 110 can also be tied to the fixed rod 130 of the first horizontal member 11, and the end of the trunk support part 20 away from the hip support part 30 is adjusted to tilt upward. The user lies face down on the trunk support part 20 with the legs tilted upward. The resistance band 110 passes around the user's legs, and the user's legs move up and down. The resistance band 110 creates resistance to the user's legs to exercise the legs and buttocks.

Example 2

3 and 4 , the present embodiment is different from the first embodiment in that the structures of the first limiting assembly 90 and the second limiting assembly 100 are different.

3, in this embodiment, the first limiting assembly 90 includes a first connecting member 95, a first adjusting member 96 and a first limiting rod 97. The first connecting member 95 is rotatably connected to the bottom of the trunk support portion 20, and the rotation axis is along the trunk support portion 20. The first adjusting member 96 is arranged in the width direction of the trunk supporting part 20. The first adjusting member 96 is fixed on the first supporting member 14, and the extension direction of the first adjusting member 96 is arranged along the extension direction of the first supporting member 14. The first adjusting member 96 has a plurality of first slots 98 along its own extension direction, and the first connecting member 95 has a fifth limiting hole 99. The first limiting rod 97 passes through the fifth limiting hole 99 along the width direction of the trunk supporting part 20 and is inserted into the corresponding first slot 98. The inner wall of the first slot 98 is used to prevent the trunk supporting part 20 from sliding down, thereby limiting the position of the trunk supporting part 20.

When the position of the trunk support part 20 needs to be adjusted, the first limiting rod 97 is taken out, and after the trunk support part 20 is rotated to a suitable position, the first limiting rod 97 is inserted into the fifth limiting hole 99 and clamped in the corresponding first clamping groove 98.

4, in this embodiment, the second limiting assembly 100 includes a second connecting member 105, a second adjusting member 106 and a second limiting rod 107. The second connecting member 105 is rotatably connected to the bottom of the hip support portion 30, and the rotation axis is arranged along the width direction of the trunk support portion 20. The second adjusting member 106 is fixed to the second support portion 15, and the extension direction of the second adjusting member 106 is arranged along the extension direction of the second support portion 15. A plurality of second slots 108 are provided on the second adjusting member 106 starting from the extension length direction, and a sixth limiting hole 109 is provided on the second connecting member 105. The second limiting rod 107 passes through the sixth limiting hole 109 along the width direction of the trunk support portion 20 and is inserted into the corresponding second slot 108. The inner wall of the second slot 108 is used to prevent the trunk support portion 20 from sliding down, thereby limiting the position of the hip support portion 30.

When the position of the buttocks support part 30 needs to be adjusted, the second limiting rod 107 is taken out, rotated and supported to a suitable position, and then the second limiting rod 107 is inserted into the sixth limiting hole 109 and clamped in the corresponding second clamping groove 108.

Example 3

The difference between this embodiment and the first embodiment is that, in this embodiment, the connecting rod 120 and the fixing rod 130 on the second transverse member 12 are retractable.

The connecting rod 120 is slidably connected to the longitudinal member 13 along the width direction of the trunk supporting portion 20 , and the fixing rod 130 on the second transverse member 12 is slidably connected to the second transverse member 12 along the length direction of the trunk supporting portion 20 .

The longitudinal member 13 is provided with a plurality of first sliding holes 123, which are distributed along the extension direction of the longitudinal member 13, and each connecting rod 120 is slidably disposed in the first sliding hole 123. The specific connection mode between the connecting rod 120 and the longitudinal member 13 is shown in FIG5 .

A first inner limit member 121 is fixed to one end of the connecting rod 120 in the length direction close to the longitudinal member 13, and a first clearance groove 124 is opened at the position of each first sliding hole 123 of the longitudinal member 13. The first clearance groove 124 is connected to the first sliding hole 123, and the first inner limit member 121 is slidably connected in the first clearance groove 124, and the first clearance groove 124 does not penetrate the longitudinal member 13 along the width direction of the torso support part 20, thereby preventing the first inner limit member 121 from escaping from the first clearance groove 124, and further preventing the connecting rod 120 from escaping from the first sliding hole 123.

A first outer stopper 122 is fixed to the other end of the connecting rod 120. In this embodiment, the first outer stopper 122 is circular, and the diameter of the first outer stopper 122 is larger than the diameter of the first sliding hole 123, thereby preventing the first outer stopper 122 from entering the first sliding hole 123. The user can pull the first outer stopper 122 to move the connecting rod 120 out.

The second transverse member 12 is provided with two second sliding holes 133, and the two linear fixing rods 130 are both slidably disposed in the second sliding holes 133. The specific connection mode between the fixing rods 130 and the second transverse member 12 is shown in FIG6 .

A second inner limit member 131 is fixed to one end of the fixing rod 130 close to the second horizontal member 12 in the length direction. The second horizontal member 12 is provided with a second make way groove 134 at the position of each second sliding hole 133. The second make way groove 134 is communicated with the second sliding hole 133. The second inner limit member 131 is slidably connected in the second make way groove 134. The second make way groove 134 does not penetrate the second horizontal member 12 along the length direction of the trunk supporting portion 20, thereby preventing the second inner limit member 131 from escaping from the second make way groove 134, and further preventing the fixing rod 130 from escaping from the second sliding hole 133.

A second outer stopper 132 is fixed to the other end of the fixing rod 130. In this embodiment, the second outer stopper 132 is circular, and the diameter of the second outer stopper 132 is larger than the diameter of the second sliding hole 133, thereby preventing the second outer stopper 132 from entering the second sliding hole 133. The user can pull the second outer stopper 132 to move the fixing rod 130 out.

Example 4

The difference between this embodiment and embodiment 1 is that there are two resistance bands 110. One end of the two resistance bands 110 is tied to the two longitudinal members 13 respectively. When in use, the other ends of the two resistance bands 110 are grasped by both hands to exercise the shoulders and chest.

The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

A fitness chair, characterized in that it comprises a support frame (10), a trunk support part (20) and a hip support part (30); one end of the trunk support part (20) and one end of the hip support part (30) are both connected to the support frame (10); the support frame (10) comprises two longitudinal members (13), and the two longitudinal members (13) are respectively located on both sides of the extension direction of the trunk support part (20); a plurality of connecting rods (120) are arranged on the two longitudinal members (13) along their own extension direction, and the connecting rods (120) are used to detachably install a resistance band (110).
The fitness chair according to claim 1 is characterized in that: the longitudinal member (13) is provided with a first sliding hole (123) at the position of each connecting rod (120), and the connecting rod (120) is slidably disposed in the first sliding hole (123).
The fitness chair according to claim 1 is characterized in that: the support frame (10) includes a first transverse member (11) and a second transverse member (12), the first transverse member (11) is located at one end of the trunk support portion (20) away from the hip support portion (30), the second transverse member (12) is located at one end of the hip support portion (30) away from the trunk support portion (20), and the resistance band (110) is detachably connected to both the first transverse member (11) and the second transverse member (12).
The fitness chair according to claim 3 is characterized in that at least two fixing rods (130) are provided on each of the first transverse member (11) and the second transverse member (12), and the resistance band (110) is detachably connected to the fixing rods (130).
The fitness chair according to claim 4, characterized in that the fixing rod (130) is L-shaped.
The fitness chair according to claim 1, characterized in that widening plates (40) are provided on both sides of one end of the trunk supporting part (20) away from the hip supporting part (30).
The fitness chair according to claim 6, characterized in that: the trunk support part (20) The widening plate (40) forms a widening section (50), and the width of the widening section (50) along a direction perpendicular to the extension direction of the trunk supporting part (20) is 35 cm-55 cm.
The fitness chair according to claim 1, characterized in that the width of the buttocks supporting part (30) along a direction perpendicular to the extending direction of the trunk supporting part (20) is 35 cm-55 cm.
The fitness chair according to claim 1 is characterized in that one end of the trunk support part (20) and one end of the hip support part (30) are both rotatably connected to the support frame (10), and the fitness chair (140) further includes a first limiting component (90) for limiting the rotation position of the trunk support part (20) and a second limiting component (100) for limiting the rotation position of the hip support part (30).
The fitness chair according to claim 9 is characterized in that: the trunk support part (20) has at least two negative tilt positions, including a first position and a second position; when the trunk support part (20) is in the first position, the distance between the lower end of the trunk support part (20) and the ground is 30cm-35cm; when the trunk support part (20) is in the second position, the distance between the lower end of the trunk support part (20) and the ground is 10cm lower than that in the first position.