Multifunctional fitness chair

Abstract

A multifunctional fitness chair includes an underframe, an armrest frame, an upper backrest frame, and a lower backrest frame. The underframe comprises left and right underframes, and underframe fixed shaft, and the armrest frame comprises left and right armrest frames and armrest fixed shaft, the left and right underframes are hinged on the left and right armrest frames, and the extension parts of the left and right armrest frames are correspondingly provided with left and right limiting plates which restrict the upward rotation of the left and right underframes. The upper backrest frame is fixed with an upper backrest shaft bushing, and at least two sets of symmetrically distributed upper backrests are arranged on the upper backrest frame. The lower backrest frame is fixed with a lower backrest shaft bushing, and at least two sets of symmetrically distributed lower backrests are arranged on the lower backrest frame.

Claims

1. A multifunctional fitness chair, which comprises an underframe, an armrest, an upper back support and a lower backrest frame, wherein the underframe comprises left and right underframes, and underframe fixed shaft fixedly connected between the left and right underframes, and the armrest comprises left and right armrest frames and armrest frame fixed shaft fixedly connected between the left and right armrest frames, the left and right underframes are hinged on the left and right armrest frames through axle pins, and extension parts of the left and right armrest frames respectively include left and right limiting plates which restrict upward rotation of the left and right underframes; the upper backrest frame is coupled to an upper backrest shaft bushing where the upper backrest shaft bushing is rotatable relative to the underframe fixed shaft, the upper backrest frame is rotatable relative to the left and right underframes when the upper backrest shaft bushing rotates on the underframe fixed shaft, and at least two sets of symmetrically distributed upper backrests are arranged on the upper backrest frame; the lower backrest frame is coupled to a lower backrest shaft bushing where the lower backrest shaft bushing is rotatable relative to the armrest frame fixed shaft, the lower backrest frame is rotatable relative to the left and right armrest frames when the lower backrest shaft bushing rotates on the armrest frame fixed shaft, and at least two sets of symmetrically distributed lower backrests are arranged on the lower backrest frame.

2. The multifunctional fitness chair according to claim 1, wherein the left and right armrest frames are respectively arranged outside the left and right underframes, and the extension parts of the left and right armrest frames are respectively coupled with the left and right armrests.

3. The multifunctional fitness chair according to claim 1, wherein the underframe fixed shaft is coupled on the connecting pipes of the left and right underframes and fixedly connected.

4. The multifunctional fitness chair according to claim 3, wherein the armrest frame fixed shaft is coupled on the connecting pipes of the left and right armrest frames and fixedly connected.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic diagram of the decomposition structure of the present invention.

(2) FIG. 2 is a schematic diagram of the three-dimensional structure of the present invention.

(3) FIG. 3 is a schematic diagram of the bottom view structure of the present invention.

(4) FIG. 4 is a schematic diagram of the matching structure of the present invention during the training of the waist lifting and abdomen retraction.

(5) FIG. 5 is a schematic diagram of the matching structure of the present invention when massaging the back.

(6) FIG. 6 is a schematic diagram of the structure in the folded state of the present invention.

(7) Wherein, 1 left armrest frame, 2 left armrest, 3 left limiting plate, 4 lower backrest, 5 lower backrest frame, 6 left underframe, 7 upper backrest shaft bushing, 8 upper backrest, 9 upper backrest frame, 10 underframe fixed shaft, 11 right underframe, 12 right limiting plate, 13 right armrest, 14 armrest frame fixed shaft, 15 right armrest frame, 16 lower backrest shaft bushing, 17 left axle pin, 18 right axle pin, 19 left extension part, 20 right extension part, 21 left connecting pipe and 22 right connecting pipe.

DETAILED DESCRIPTION

(8) FIG. 1 to FIG. 6 show the specific implementation scheme of the multifunctional fitness chair of the present invention, which comprises an underframe, armrest frames, an upper backrest frame 9, and a lower backrest frame 5. The underframe comprises left and right underframes 6 and 11, and an underframe fixed shaft 10 fixedly connected between the left and right underframes 6 and 11, and the armrest frame comprises left and right armrest frames 1 and 15, and an armrest frame fixed shaft 14 fixedly connected between the left and right armrest frames 1 and 15. The left and right underframes 6 and 11 are hinged on the left and right armrest frames 1 and 15 through axle pins 17 and 18, and the extension parts 19, 20 of the left and right armrest frames 1 and 15 are correspondingly provided with left and right limiting plates 3 and 12 which restrict the upward rotation of the left and right underframes 6 and 11; the upper backrest frame 9 is fixed with an upper backrest shaft bushing 7 which can rotate relative to the underframe fixed shaft 10. The upper backrest frame 9 is rotatably arranged on the left and right underframes 6 and 11 through the upper backrest shaft bushing 7 cooperating with the underframe fixed shaft 10. The upper backrest frame 9 is provided with at least two sets of symmetrically distributed upper backrests 8, which can be fixed or rotatably arranged on the upper backrest frame 9; the lower backrest frame 5 is fixed with a lower backrest shaft bushing 16 which can rotate relative to the armrest frame fixed shaft 14. The lower backrest frame 5 is rotatably arranged on the left and right armrest frames 1 and 15 through the lower backrest shaft bushing 16 cooperating with the armrest frame fixed shaft 14. The lower backrest frame 5 is provided with at least two sets of symmetrically distributed lower backrests 4. The lower backrest 4 can be fixed or rotatably arranged on the lower backrest frame 5.

(9) In order to facilitate the operation and use, the left and right armrest frames 1 and 15 are correspondingly arranged outside the left and right underframes 6 and 11, and the extension parts 19 and 20 of the left and right armrest frames 1 and 15 are correspondingly fixed with the left and right armrests 2 and 13.

(10) In order to effectively train the arm strength and realize the rowing function, two sides of the left and right underframes 6 and 11 are correspondingly provided with detachable elastic pull ropes.

(11) In order to facilitate the installation, the underframe fixed shaft 10 is correspondingly sheathed on the connecting pipes 21 and 22 of the left and right underframes 6 and 11, and is fixedly connected through fasteners. The armrest frame fixed shaft 14 is correspondingly sheathed on the connecting pipes 21 and 22 of the left and right armrest frames 1 and 15, and is fixedly connected through fasteners.

(12) When the present invention sits on the lower backrest 4 and the back rests on the upper backrest 8, as shown in FIG. 4, if the feet do not fall to the ground, it can do the waist straightening and deep V-shaped abdominal retraction training; if the feet are on the floor, it can do sit-up, waist straightening and abdomen training; if both feet fall to the ground, elastic pull ropes are set on both sides of the left and right underframes 6 and 11 to cooperate, so as to do arm strength training; push up training can also be carried out by using the left and right armrests 2 and 13. When the upper backrest 8 is turned back, as shown in FIG. 5, the feet are on the ground and the back rests on the upper backrest 8, and the hips can be lifted back for abdominal training. The present invention has multiple training functions and good fitness effect.

(13) The above description is only the specific embodiment of the present invention, and does not limit the present invention in any form. On the basis of not departing from the technical solution of the present invention, the simple modifications, equivalent changes or modifications made fall into the protection scope of the present invention.