CN219398849U

CN219398849U - Body-building chair

Info

Publication number: CN219398849U
Application number: CN202223409141.8U
Authority: CN
Inventors: 帕布罗·阿特鲁·加西亚·洛佩斯
Original assignee: Groot Builders Co ltd
Current assignee: Groot Builders Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-07-25
Anticipated expiration: 2032-12-14
Also published as: WO2024125553A1

Abstract

The application relates to a body-building chair, which comprises a supporting frame, a trunk supporting part and a buttock supporting part; one end of the trunk support part and one end of the hip support part are connected with the support frame; the support frame comprises two longitudinal pieces which are respectively positioned at two sides of the extending direction of the trunk support part; and a plurality of connecting rods are arranged on the two longitudinal pieces along the self extending direction, and the connecting rods are used for detachably mounting the resistance bands. In this application, through setting up the resistance area to can be according to user's exercise demand, adjust the position of resistance area on the longitudinal, make its position department that corresponds human different positions that is located, apply the resistance to human different positions, strengthen the exercise effect.

Description

Body-building chair

Technical Field

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

Background

Along with the improvement of living standard, people have stronger consciousness on health, and more people are enthusiastic for body building exercise. When the body is exercised, the body-building chair is often used.

Nowadays, a commonly used exercise chair comprises a support base and a torso support and a hip support horizontally fixed to the support base.

With respect to the above related art, the inventor believes that the exercise chair only has a supporting and buffering function when a user exercises with the chair, and has a single function, which is difficult to meet the exercise requirements of the user.

Disclosure of Invention

In order to overcome the defects in the related art, so that the exercise chair is suitable for diversified use scenes, the application provides an exercise chair.

The application provides a body-building chair adopts following technical scheme:

a body-building chair comprises a supporting frame, a trunk supporting part and a buttock supporting part; one end of the trunk support part and one end of the hip support part are connected with the support frame; the support frame comprises two longitudinal pieces which are respectively positioned at two sides of the extending direction of the trunk support part; and a plurality of connecting rods are arranged on the two longitudinal pieces along the self extending direction, and the connecting rods are used for detachably mounting the resistance bands.

Through adopting above-mentioned technical scheme, through setting up the connecting rod on the longitudinal member, can detachably install the resistance area on the connecting rod. According to the exercise requirements of the user, the resistance bands are mounted on different connecting rods, so that the resistance bands are placed on different body parts of the user. The resistance belt can be one, and one resistance belt both ends are fixed respectively on the connecting rod of two vertical pieces, when the user takes exercise, can walk around the human body with the resistance belt, exert the resistance to the different positions of human body, strengthen the effect of taking exercise. The two resistance belts can be respectively bound on the connecting rods of the two longitudinal pieces, and when the device is used, the two hands respectively grasp the other ends of the two resistance belts to exercise the shoulders, the chest and the like.

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 technical scheme, when the resistance belt is required to be used, the connecting rod is moved out of the first sliding hole, and the resistance belt is bound on the connecting rod; when the resistance belt is not needed, the connecting rod is moved into the first sliding hole.

In some embodiments, the support frame includes a first cross member located at an end of the torso support remote from the torso support, and a second cross member located at an end of the torso support remote from the torso support, the resistance bands being removably connected to both the first and second cross members.

Through adopting above-mentioned technical scheme, install the resistance area on first horizontal spare or second horizontal spare, during the use, the user is facing downwards and is prone or lie on the body-building chair, then walk around the user's foot with the resistance area, the user reciprocates the leg, the resistance area forms the resistance to the user's shank to strengthen the exercise effect to shank and buttock.

In some embodiments, at least two fixing rods are arranged on the first transverse member and the second transverse member, and the resistance belt is detachably connected with the fixing rods.

Through adopting above-mentioned technical scheme, with the resistance area with the dead lever be fixed in on first horizontal member or the second horizontal member, this mode is convenient for the installation and the dismantlement of resistance area more.

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

By adopting the technical scheme, the fixing rod is L-shaped, so that the resistance belt can be prevented from sliding off the fixing rod in the using process.

In some embodiments, the torso support is provided with a widening plate on both sides of an end of the torso support remote from the hip support.

Through adopting above-mentioned technical scheme, at present, the width of standard truck supporting part is not enough to support user's whole back, through setting up the widening board, can increase user's back and truck supporting part's area of contact, and is more comfortable when the user uses.

In some embodiments, the torso support and the widening plate form a widening section having a width in a direction perpendicular to a direction in which the torso support extends of 35cm to 55cm.

By adopting the technical scheme, the length of the widening section is set between 35cm and 55cm, and the whole back of a user can be basically and completely supported.

In some embodiments, the buttocks support has a width in a direction perpendicular to the direction in which the torso support extends of from 35cm to 55cm.

By adopting the technical scheme, when a user exercises the hip bridge, the widened hip support is used for placing feet of the user. As the area of the upper surface of the buttock supporting part is increased, a user can separate the legs when using the buttock supporting part to exercise at the same width distance with the buttocks, thereby being more convenient for the user to exercise.

In some embodiments, one end of the torso support and one end of the hip support are both rotatably coupled to the support frame, and the exercise chair further comprises a first stop assembly for defining the rotational position of the torso support and a second stop assembly for defining the rotational position of the hip support.

Through adopting above-mentioned technical scheme, set up trunk supporting part and buttock supporting part into rotationally, can adjust the inclination of trunk supporting part and buttock supporting part to utilize first spacing subassembly to prescribe a limit to the position of trunk supporting part, utilize the second spacing subassembly to prescribe a limit to the position of buttock supporting part, thereby be convenient for the user according to the demand, adjust the inclination of trunk supporting part and buttock supporting part, carry out different exercises.

In some embodiments, the position at which the end of the torso support remote from the hip support is inclined downward is defined as a negative inclined position.

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

By adopting the technical scheme, the trunk support part is adjusted to the negative inclined position, so that a user can exercise the hip bridge on the floor. The user puts his feet on the ground and leans against the negatively inclined trunk support part. The torso support provides a suitable surface for the user to prevent the user from sliding in a direction toward the hip support. By providing the first and second positions, the reaction force from the foot can be counteracted when the user exercises the hip bridge on the floor, while improving the stability in use.

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

1. by providing the resistance bands on the longitudinal members, the resistance bands can be adjusted or positioned at different locations according to the exercise requirements of the user, thereby placing the resistance bands on different body parts of the user. When a user exercises, the resistance belt can bypass the human body, and resistance is applied to different parts of the human body, so that the exercise effect is enhanced.

2. By adopting the technical scheme, the trunk support part is adjusted to the negative inclined position, so that a user can exercise the hip bridge on the floor. The user puts his feet on the ground and leans against the negatively inclined trunk support part. The torso support provides a suitable surface for the user to prevent the user from sliding in a direction toward the hip support. By providing the first and second positions, the reaction force from the foot can be counteracted when the user exercises the hip bridge on the floor, while improving the stability in use.

Drawings

Fig. 1 is a schematic view showing the overall structure of an exercise chair according to embodiment 1 of the present application.

Fig. 2 is a schematic structural diagram of a first limiting component and a second limiting component in embodiment 1 of the present application.

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

Fig. 4 is a schematic structural diagram of a second limiting component in embodiment 2 of the present application.

Fig. 5 is a schematic structural view of a fixing lever in embodiment 3 of the present application.

Fig. 6 is a schematic structural view of the connecting rod in embodiment 3 of the present application.

Reference numerals illustrate: 10. a support frame; 11. a first cross member; 12. a second cross member; 13. a longitudinal member; 14. a first support; 15. a second support; 20. a trunk support part; 30. a buttock support part; 40. a widening plate; 50. a widening section; 60. a protective pad; 70. a convex portion; 80. an arc surface; 90. a first limit assembly; 91. a first arcuate strip; 92. a first plunger; 93. a first limiting hole; 94. a second limiting hole; 95. a first connector; 96. a first adjustment member; 97. a first stop lever; 98. a first clamping groove; 99. a fifth limiting hole; 100. the second limiting component; 101. a second arcuate strip; 102. a second plunger; 103. a third limiting hole; 104. a fourth limiting hole; 105. a second connector; 106. a second adjusting member; 107. a second limit rod; 108. a second clamping groove; 109. a sixth limiting hole; 110. a resistance belt; 120. a connecting rod; 121. a first inner limiting member; 122. a first outer limit member; 123. a first sliding hole; 124. a first relief groove; 130. a fixed rod; 131. a second inner limiting member; 132. a second outer limit member; 133. a second sliding hole; 134. a second relief groove; 140. body-building chair; 150. and a limiting block.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a body-building chair 140.

Example 1

Referring to fig. 1, an exercise chair 140 includes a support frame 10, a torso support 20, and a hip support 30. The trunk support part 20 and the hip support part 30 are both flat plate-shaped. The longitudinal direction of the trunk support portion 20 is the extending direction thereof, and the width direction of the trunk support portion 20 is perpendicular to the extending direction thereof. The trunk support part 20 and the hip support part 30 are horizontally arranged in the width direction, and the hip support part 30 is located at one end of the trunk support part 20 in the length direction. The trunk support 20 and the hip support 30 are 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 20.

Referring to fig. 1, the trunk support 20 is provided at one end thereof remote from the hip support 30 with two widening plates 40, and the two widening plates 40 are located at both ends of the trunk support 20 in the width direction, respectively. The trunk support 20 and the two widening plates 40 are integrally molded to form a widening section 50, and the length of the widening section 50 in the width direction of the trunk support 20 is 45cm. The end of the torso support 20 remote from the hip support 30 is provided with a protective pad 60, the protective pad 60 covering the top and edges of the torso support 20.

Referring to fig. 1, the hip support 30 also has a width of 45cm. The buttock supporting part 30 is kept away from the one end intermediate position department integrated into one piece of torso supporting part 20 and has the convex part 70, and the convex part 70 is formed with arcwall face 80 with buttock supporting part 30 hookup location in the both ends of torso supporting part 20 width direction, and during the use, the user places the both sides with the both legs respectively in convex part 70, and arcwall face 80's setting is more convenient for the placing of user's shank, and is more comfortable during the use.

Referring to fig. 1, the support frame 10 includes a first cross member 11, a second cross 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 extending direction of the longitudinal members 13 is along the length direction of the torso support portion 20, and the two longitudinal members 13 are respectively located at two sides of the length direction of the torso support portion 20, the first transverse member 11 is located at one end of the torso 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 torso support portion 20.

Referring to fig. 1, the support stand 10 further includes a first support 14 and a second support 15, the first support 14 having a length greater than the second support 15. One end of the first supporting member 14 in the length direction is fixed on the first transverse member 11, one end of the second supporting member 15 in the length direction is fixed on the second transverse member 12, and one end of the first supporting member 14 away from the first transverse member 11 is fixedly connected with one end of the second supporting member 15 away from the second transverse member 12.

Referring to fig. 1, one end of the torso support 20 near the hip support 30 is rotatably coupled to the junction of the first support 14 and the second support 15. The exercise chair 140 further includes a first stop assembly 90 for defining the position of the torso support 20.

Referring to fig. 1 and 2, in this embodiment, the first stop assembly 90 includes a first arcuate strip 91 and a first plunger 92. The first arc-shaped strip 91 is fixed at the bottom of the torso support portion 20, a straight line along the width direction of the torso support portion 20, where the center of the first arc-shaped strip 91 is located, is collinear with the rotation axis of the torso support portion 20, and a plane where the radius of the first arc-shaped strip 91 is located is a vertical plane. The radius of the first arc-shaped strip 91 is smaller than the distance from the center of the first arc-shaped strip 91 to the ground.

Referring to fig. 1 and 2, the first arc-shaped bar 91 passes through the first and second supports 14 and 15, and is slidably connected with the first and second supports 14 and 15. A plurality of first limiting holes 93 are circumferentially equidistant on the first arc-shaped strip 91 around the center of the circle, a second limiting hole 94 is formed on the first supporting member 14, and the first inserting rod 92 penetrates through the second limiting hole 94 and the corresponding first limiting hole 93 along the width direction of the torso supporting portion 20 so as to limit the torso supporting portion 20 at a required position.

The position at which the end of the torso support 20 remote from the hip support 30 is inclined downward is defined as a negative inclined position, in this embodiment, the torso support 20 has two negative inclined positions, a first position and a second position, respectively. When the trunk support 20 is located at the first position, the distance between the lower end of the trunk support 20 and the ground is 30cm to 35cm. When the torso support 20 is in the second position, the distance between the lower end of the torso support 20 and the ground is 10cm lower than the first position.

By adjusting the torso support 20 to the negative tilt position, the user can perform hip bridge exercises on the floor. The user sits on his/her feet on the ground, leaning against the negatively inclined torso support 20. The torso support 20 provides a suitable surface for the user to prevent the user from sliding in a direction toward the hip support 30. Since the widening plate 40 is provided at the torso support 20 to form the widening section 50, a sufficient area can be provided for the back to support the back. And, 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 exercise the hip bridge on the floor. By providing the first and second positions, the reaction force from the foot can be counteracted when the user exercises the hip bridge on the floor, while improving the stability in use.

Referring to fig. 1 and 2, the hip support 30 is also rotatably connected to the junction of the first support 14 and the second support 15 at one end thereof adjacent to the torso support 20, and the exercise chair 140 further includes a second stop assembly 100 for defining the position of the hip support 30.

Referring to fig. 1 and 2, in this embodiment, a second stop assembly 100 includes a second arcuate strip 101 and a second plunger 102. The second arc-shaped strip 101 is fixed at the bottom of the hip supporting part 30, the second arc-shaped strip 101 is concentric with the first arc-shaped strip 91, and the plane where the radius of the second arc-shaped strip 101 is located is a vertical plane. The radius of the second arcuate strips 101 is smaller than the radius of the first arcuate strips 91.

Referring to fig. 1 and 2, the second arc-shaped bar 101 passes through the second support 15 and is slidably connected with the second support 15. A plurality of third limiting holes 103 are formed in the second arc-shaped strip 101 at equal intervals around the circle center of the second arc-shaped strip, limiting blocks 150 are fixed on the second supporting piece 15, a fourth limiting hole 104 is formed in each limiting block 150, and the second inserting rod 102 penetrates through the fourth limiting hole 104 and the corresponding third limiting hole 103 along the width direction of the trunk supporting part 20 so as to limit the hip supporting part 30 to a required position.

The torso support 20 and the hip support 30 may be rotated according to the user's needs, and then the position of the torso support 20 is defined by the first insert bar 92, and the position of the hip support 30 is defined by the second insert bar 102, so that the torso support 20 and the hip support 30 form an inclined plane for the user to perform exercises such as hip bridges.

Referring to fig. 1, the exercise chair 140 is provided with a resistance belt 110. A plurality of connecting rods 120 are fixed on 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 are in one-to-one correspondence. 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 the hip bridge exercise is performed, the two ends of the length direction of the resistance belt 110 are respectively bound on the connecting rods 120 of the two longitudinal pieces 13, and the trunk support part 20 and the human body are bypassed, so that the resistance belt 110 is positioned at the hip position of the user, and the resistance belt 110 forms resistance to the hip when the user performs the hip bridge exercise, thereby enhancing the exercise effect.

In performing chest exercises, the position of the resistance band 110 relative to the torso support 20 is adjusted and tied to different connecting rods 120 such that the resistance band 110 is positioned on the chest of the user, and the user pulls the resistance band 110 by hand while lying on the torso support 20 to perform chest exercises.

Referring to fig. 1, two fixing bars 130 are provided on the first and second lateral members 11 and 12, respectively.

The fixing rod 130 on the first transverse member 11 is L-shaped, and the fixing rod are fixedly connected. A part of the L-shaped fixing bar 130 is disposed in the vertical direction, and the other part is disposed in the width direction of the torso support portion 20, and an opening formed between the fixing bar 130 and the first cross member 11 is directed away from the torso support portion 20. The fixing bar 130 of the second cross member 12 is linear and fixedly connected to the same.

In the hip and leg exercises, both ends of the resistance band 110 in the longitudinal direction are respectively tied to the fixing bars 130, and the torso support 20 is adjusted such that one end of the torso support 20 remote from the hip support 30 is inclined upward. At this time, the user leans down on the torso support portion 20, the buttocks are located at one end of the torso support portion 20 far away from the buttocks support portion 30, the resistance belt 110 is sleeved on the ankle, the user moves the legs up and down, the resistance belt 110 forms resistance, and the exercise effect of the legs and buttocks is enhanced.

The implementation principle of the embodiment 1 is as follows:

the exercise chair 140 has various different usage modes, and can adjust the hip support portion 30 and the torso support portion 20 to a horizontal position, or adjust the hip support portion 30 and the torso support portion 20 to incline at a certain angle, and limit the positions of the torso support portion 20 and the hip support portion 30 through the first limiting assembly 90 and the second limiting assembly 100, respectively, so that a user can lie on the torso support portion 20 to perform various exercises such as sit-ups and hip bridges.

In addition, the two ends of the resistance belt 110 can be respectively tied to the two longitudinal members 13, and the body support 20 and the human body are bypassed, and the resistance belt 110 is positioned at the hip position, so that the resistance to the hip is increased and the exercise effect is enhanced when the hip bridge is put into exercise.

The two ends of the resistance belt 110 may be tied to the two longitudinal members 13, respectively, and the torso support 20 and the human body may be bypassed, with the resistance belt 110 in the chest position, and the user pulls the resistance belt 110 to perform chest exercises.

The resistance belt 110 may also be tied to the fixing bar 130 of the first cross member 11, and the end of the torso support 20 remote from the hip support 30 is adjusted to tilt upward, the user leans down on the torso support 20, and the legs are tilted upward, the resistance belt 110 bypasses the legs of the user, the legs of the user move up and down, and the resistance belt 110 forms resistance against the legs of the user to perform exercise of the legs and the hips.

Example 2

Referring to fig. 3 and 4, the present embodiment is different from embodiment 1 in the structure of the first and second spacing assemblies 90 and 100.

Referring to fig. 3, in this embodiment, the first spacing assembly 90 includes a first link 95, a first adjuster 96, and a first spacing lever 97. The first link 95 is rotatably connected to the bottom of the torso support 20, and the rotation axis is provided along the width direction of the torso support 20. The first regulating member 96 is fixed to the first supporting member 14, and the extending direction of the first regulating member 96 is set along the extending direction of the first supporting member 14. The first adjusting member 96 has a plurality of first clamping grooves 98 along its extending direction, and the first connecting member 95 has a fifth limiting hole 99. The first stopper rod 97 passes through the fifth stopper hole 99 in the width direction of the torso support portion 20, and is engaged in the corresponding first engaging groove 98. The trunk support 20 is prevented from sliding down by the inner wall of the first engaging groove 98, and the position of the trunk support 20 is defined.

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

Referring to fig. 4, in this embodiment, the second spacing assembly 100 includes a second link 105, a second adjustment member 106, and a second spacing lever 107. The second link 105 is rotatably connected to the bottom of the hip support 30, and the rotation axis is provided along the width direction of the torso support 20. The second regulating member 106 is fixed to the second supporting member 15, and the extending direction of the second regulating member 106 is set along the extending direction of the second supporting member 15. The second adjusting member 106 has a plurality of second clamping grooves 108 along the extending length direction, and the second connecting member 105 has a sixth limiting hole 109. The second limiting rod 107 passes through the sixth limiting hole 109 along the width direction of the torso support portion 20, and is engaged in the corresponding second engaging groove 108. The trunk support part 20 is prevented from sliding down by the inner wall of the second locking groove 108, and the position of the hip support part 30 is defined.

When the position of the hip supporting part 30 needs to be adjusted, the second limiting rod 107 is taken out, and after the second limiting rod 107 is rotatably supported to a proper position, the second limiting rod 107 is inserted into the sixth limiting hole 109 and is clamped in the corresponding second clamping groove 108.

Example 3

This embodiment differs from embodiment 1 in that in this embodiment the connecting rod 120 and the fixing rod 130 on the second cross member 12 are telescopic.

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

The longitudinal member 13 is provided with a plurality of first sliding holes 123, the plurality of first sliding holes 123 are distributed along the extending direction of the longitudinal member 13, and each connecting rod 120 is slidably disposed in the first sliding hole 123. The connecting rod 120 is connected to the longitudinal member 13 in a specific manner as shown in fig. 5.

The one end that connecting rod 120 length direction is close to vertical 13 is fixed with first interior locating part 121, vertical 13 has all seted up first groove 124 of stepping down in each first slide hole 123 position department, first groove 124 and the first slide hole 123 intercommunication of stepping down, first interior locating part 121 sliding connection is in first groove 124 of stepping down, and first groove 124 of stepping down does not run through vertical 13 along the width direction of trunk supporting part 20, thereby prevent that first interior locating part 121 breaks away from in the first groove 124 of stepping down, and then prevent that connecting rod 120 breaks away from in the first slide hole 123.

The other end of the connecting rod 120 is fixed with a first outer limiting member 122. In this embodiment, the first outer limiting member 122 is circular, and the diameter of the first outer limiting member 122 is larger than that of the first sliding hole 123, so as to prevent the first outer limiting member 122 from entering the first sliding hole 123. The user can remove the connecting rod 120 by pulling the first outer limiting member 122.

Two second sliding holes 133 are formed in the second transverse member 12, and two linear fixing rods 130 are slidably disposed in the second sliding holes 133. The particular manner in which the securing lever 130 is connected to the second cross member 12 is shown in fig. 6.

The second inner limiting part 131 is fixed at one end, close to the second transverse part 12, of the fixing rod 130 in the length direction, the second transverse part 12 is provided with second abdicating grooves 134 at the positions of the second sliding holes 133, the second abdicating grooves 134 are communicated with the second sliding holes 133, the second inner limiting part 131 is slidably connected in the second abdicating grooves 134, and the second abdicating grooves 134 do not penetrate the second transverse part 12 along the length direction of the torso supporting part 20, so that the second inner limiting part 131 is prevented from being separated from the second abdicating grooves 134, and the fixing rod 130 is prevented from being separated from the second sliding holes 133.

The other end of the fixing lever 130 is fixed with a second outer stopper 132. In this embodiment, the second outer limiting member 132 is circular, and the diameter of the second outer limiting member 132 is larger than that of the second sliding hole 133, so as to prevent the second outer limiting member 132 from entering the second sliding hole 133. The user can remove the fixing lever 130 by pulling the second outer stopper 132.

Example 4

This embodiment differs from embodiment 1 in that the number of resistance bands 110 is two. One ends of the two resistance bands 110 are respectively tied to the two longitudinal members 13, and when in use, both hands respectively grip the other ends of the two resistance bands 110 to exercise the shoulders, the chest, etc.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A body-building chair, which is characterized in that: comprises a supporting frame (10), a trunk supporting part (20) and a buttock supporting part (30); one end of the trunk support part (20) and one end of the hip support part (30) are connected with the support frame (10); the support frame (10) comprises two longitudinal pieces (13), and the two longitudinal pieces (13) are respectively positioned at two sides of the extending direction of the trunk support part (20); a plurality of connecting rods (120) are arranged on the two longitudinal pieces (13) along the self extending direction, and the connecting rods (120) are used for detachably mounting the resistance belt (110).

2. An exercise chair as claimed in claim 1, wherein: the longitudinal pieces (13) are provided with first sliding holes (123) at the positions of the connecting rods (120), and the connecting rods (120) are arranged in the first sliding holes (123) in a sliding mode.

3. An exercise chair as claimed in claim 1, wherein: the support frame (10) comprises a first transverse member (11) and a second transverse member (12), wherein the first transverse member (11) is located at one end, far away from the hip support part (30), of the trunk support part (20), the second transverse member (12) is located at one end, far away from the trunk support part (20), of the hip support part (30), and the resistance belt (110) is detachably connected with the first transverse member (11) and the second transverse member (12).

4. A gym chair according to claim 3, wherein: at least two fixing rods (130) are arranged on the first transverse member (11) and the second transverse member (12), and the resistance belt (110) is detachably connected with the fixing rods (130).

5. The exercise chair of claim 4, wherein: the fixing rod (130) is L-shaped.

6. An exercise chair as claimed in claim 1, wherein: the trunk support part (20) is provided with a widening plate (40) on both sides of one end far away from the hip support part (30).

7. The exercise chair of claim 6, wherein: the trunk support part (20) and the widening plate (40) form a widening section (50), and the width of the widening section (50) along the direction perpendicular to the extending direction of the trunk support part (20) is 35cm-55cm.

8. An exercise chair as claimed in claim 1, wherein: the width of the buttocks support part (30) along the direction perpendicular to the extending direction of the trunk support part (20) is 35cm-55cm.

9. An exercise chair as claimed in claim 1, wherein: one end of the trunk support part (20) and one end of the hip support part (30) are rotatably connected with the support frame (10), and the body-building chair (140) further comprises a first limiting assembly (90) for limiting the rotation position of the trunk support part (20) and a second limiting assembly (100) for limiting the rotation position of the hip support part (30).

10. An exercise chair as claimed in claim 9, wherein: the torso support (20) has at least two negative tilt positions, including a first position and a second position; when the trunk support part (20) is positioned at 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 located at the second position, the distance between the lower end of the trunk support part (20) and the ground is 10cm lower than that of the first position.