Swivel back exercise device

Abstract

A swivel back exercise device , includes a base, a hip section, a leg section, an abdominal and chest section, a head section and a rotary swing mechanism. The base has a lifting column, the adapter part at the top is connected to the hip section, and the middle section is provided with a shaft connection seat; the swing mechanism includes a swing base, a fixed base, a support base, a reciprocating swing telescopic cylinder, and a left and right reciprocating telescopic cylinder. The seat shaft is located on the shaft joint seat, and is equipped with a sector-shaped gear plate at the bottom, and the aforementioned fixed seat is connected to the lifting column, and a rack is set inside and meshes with the sector-shaped gear plate. The reciprocating rotary telescopic cylinder of the fixed seat has a telescopic rod. And connect the rack. One end of the support seat is axially connected to the connecting plate, and the other end extends and connects the connection between the abdominal and thoracic segments and the head segment; the reciprocating rotary telescopic cylinder drives the telescopic rod to move, driving the rack to move, prompting the fan-shaped gear plate to drive the swing seat to axially connect The seat swings on a circular axis, and the support seat is driven by the rotating swing seat and the reciprocating rotating telescopic cylinder to achieve a structure in which the abdominal, thoracic and head segments can swing at multiple angles in conjunction with each other.

Claims

1. A rotary back exercise device, comprising a base (1), a hip section (2), a leg section (3), an abdominal-thoracic section (4), a head section (5) and a rotary swing mechanism (6), wherein the hip section (2) is connected to the leg section (3), and the abdominal-thoracic section (4) is connected to the head section (5), and is characterized in that: the base (1) is provided with a lifting column (11), the top of the lifting column (11) is provided with a connecting portion (12) connected to the hip section (2), and a shaft connection seat (13) is provided in the middle section of the lifting column (11); The rotary swing mechanism (6) comprises a rotary swing seat (61), a fixed seat (62) and a supporting seat (63), wherein: the rotary swing seat (61) is provided with an axial hole (611) axially arranged on the shaft connecting seat (13); the rotary swing seat (61) is provided with a symmetrical connecting plate (612) and a side rod (613) extending on one side above and below the axial hole (611), and a fan-shaped tooth piece (614) is provided at the bottom of the rotary swing seat (61); one side of the fixed seat (62) is connected to the lower section of the lifting column (11), and a rack (621) is provided inside and engaged with the fan-shaped tooth piece (614); the other side of the fixed seat (62) is connected to a reciprocating rotary telescopic cylinder (623), and the reciprocating rotary telescopic cylinder (623) has a telescopic rod (624) connected to the rack (621); One end of the support seat (63) has a symmetrical shaft connection plate (632), and the shaft connection plate (632) is shaft-connected to the connecting plates (612). The support seat (63) is provided with a side wing plate (631) corresponding to one side of the side rod (613), and after being connected to the ear portion of one end of the left and right reciprocating telescopic cylinder (633), the other end of the left and right reciprocating telescopic cylinder (633) is shaft-connected to the aforementioned side rod (613), and the support seat (63) rotates and swings with the aforementioned connecting plate (612) and the shaft connection plate (632) as the left and right rotation and swing axis by means of the bolt (6321). The other end of the support seat (63) extends upward and is connected to the connection between the abdominal and thoracic section (4) and the head section (5); By this means, the reciprocating rotary telescopic cylinder (623) is actuated to allow the telescopic rod (624) to move back and forth, thereby driving the rack (621) to move back and forth in the fixed seat (62); the fan-shaped tooth piece (614) engaged with the rack (621) is driven, so that the rotary swing seat (61) swings in a rotary fan-shaped manner with the shaft connection seat (13) as the circular axis; and the support seat (63) is shaft-connected to the rotary swing seat (61), so that the rotary swing seat (61) can simultaneously tilt side to side on the X-axis (Roll) and rotate left and right (Yaw), thereby achieving a structure in which the abdominal and thoracic section (4) and the head section (5) are driven by the rotary swing seat (61) to swing at multiple angles.

2. The rotary back exercise device as described in claim 1, wherein the rotary swing seat (61) is provided with a buffer washer (6111) in the shaft hole (611).

3. The rotary back exercise device as described in claim 1, wherein the rotary swing seat (61) includes a positioning plate (6112), and the rotary swing seat (61) is arranged on the shaft connecting seat (13), and the positioning plate (6112) is assembled on the shaft connecting seat (13).

4. The rotary back exercise device as described in claim 1, wherein a shaft-moving portion (622) is provided on one side of the rack (621), and the shaft-moving portion (622) is axially connected to the telescopic rod (624).

5. The rotary back exercise device as described in claim 1, wherein the reciprocating rotary telescopic cylinder (623) can be motor-type, hydraulic-type or pneumatic-type.

6. A rotary back exercise device as described in claim 1, wherein the upper section of the rotary swing seat (61) is provided with a side rod (613); the support seat (63) is provided with a side wing plate (631) on the same side as the side rod (613); and a left and right reciprocating telescopic cylinder (633) is axially connected to the side rod (613) at one end and axially connected to the side wing plate (631) at the other end, so that the support seat (63) can achieve a left and right swinging structure when it swings.

7. The rotary back exercise device as described in claim 6, wherein the left and right reciprocating telescopic cylinder (633) can be motor-type, hydraulic-type or pneumatic-type.

8. A rotary back exercise device as described in claim 1, wherein the fixed base (62) and the lifting column (11) are arranged parallel to each other, a motor (625) is provided on the top of the fixed base (62), and a shaft (624) at one end of the motor (625) is connected to a gear (626) that engages with the fan-shaped gear (614).

9. A rotary back exercise device as described in claim 1, wherein the fixing seat (62) is provided on the opposite side of the lifting column (11), and a motor (625) is fixedly provided so as to penetrate the corresponding middle portion of the lifting column (11), the shaft (624) at one end of the motor (625) is sleeved on the aforementioned connecting plate (612) by the aforementioned shaft connecting seat (13), and a buffer washer (6111) is sleeved between the fitting surfaces of the shaft connecting seat (13) and the connecting plate (612), and then a positioning plate (6112) is screwed to the corresponding portion of the lifting column (11). A coupling pin (6241) is used as a transmission element between the positioning plate (6112) and the shaft (624); when the motor (625) is started, the connecting plate (612) coaxially pivoted with the shaft (624) is driven by the coaxial axis of the positioning plate (6112) and the coupling pin (6241), thereby forming an equivalent rotary swing mechanism (6), which is connected to the support seat (63) connected to the connecting plate (612), and is combined with the left and right reciprocating telescopic cylinders (633) to connect the side rods (613) and the side wing plates (631).

10. A rotary back exercise device as described in claim 1, wherein the fixing seat (62) is arranged on the opposite side of the lifting column (11), and after the motor (625) is fixed to the fixing seat (62), the shaft (624) of the motor (625) is provided with a connecting plate (612), a buffer washer (6111) and a positioning plate (6112) by means of a shaft connecting seat (13), and the positioning plate (6112) and the shaft (624) are pivotally arranged with a connecting pin (6241).

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