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A tattoo chair includes a backrest, a seat, a brace for supporting the seat, and a base for allowing the chair to stand stably. The lower end of the backrest is rotatably attached to the inner side of the seat. A supporting fixed plate is provided under the bottom surface of the seat. At least one f

A tattoo chair includes a backrest, a seat, a brace for supporting the seat, and a base for allowing the chair to stand stably. The lower end of the backrest is rotatably attached to the inner side of the seat. A supporting fixed plate is provided under the bottom surface of the seat. At least one fixed gear rack is mounted from top to bottom on the rear surface of the backrest. A supporting rod is provided on the supporting fixed plate. One end of the supporting rod is rotatably attached to the supporting fixed plate, and the other end is put into one of grooves of the gear rack on the rear surface of the backrest.

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1. A tattoo chair, comprises a backrest, a seat, a brace for supporting said seat, and a base for allowing the chair to stand stably, wherein a lower end of said backrest is rotatably attached to an inner side of said seat; a supporting fixed plate is provided under a bottom surface of said seat; at

1. A tattoo chair, comprises a backrest, a seat, a brace for supporting said seat, and a base for allowing the chair to stand stably, wherein a lower end of said backrest is rotatably attached to an inner side of said seat; a supporting fixed plate is provided under a bottom surface of said seat; at least one fixed gear rack is mounted from top to bottom on a rear surface of said backrest; a supporting rod is provided on said supporting fixed plate; one end of said supporting rod is rotatably attached to said supporting fixed plate, and the other end is put into one of grooves of said at least one fixed gear rack on the rear surface of said backrest. 2. A tattoo chair of claim 1, wherein armrests are provided on the left, right, or both sides of said seat and backrest; snap spring holes are provided in said seat and backrest; fixing axes are provided on sides of both ends of said armrests to match the snap spring holes, and grooves for positioning are provided on the fixing axes to match the snap springs in the snap spring holes. 3. A tattoo chair of claim 1, wherein said brace is a hydraulic lifting device with its height adjusted via a pedal, and said supporting fixed plate is rotatable 360 degrees around an axis of the hydraulic lifting device. 4. A tattoo chair of claim 1 wherein the backrest includes a narrowed section adjacent the seat to enable a person supported by the tattoo chair to straddle the tattoo chair and face toward the backrest. 5. A tattoo chair of claim 4 wherein the seat includes a narrowed section adjacent the seatback to further enable a person supported by the tattoo chair to straddle the tattoo chair and face toward the backrest. 6. A tattoo chair of claim 1, wherein a leg rest is provided in a front of said seat, and said leg rest is rotatably attached to the seat; leg rest supporting rods are provided on a rear surface of said leg rest, and a leg rest fixing brace is provided on the supporting fixed plate under said seat; the leg rest supporting rods are movably connected with the leg rest fixing brace. 7. A tattoo chair of claim 6, wherein said leg rest is a symmetrically separate structure comprising a left part and a right part each having a leg rest supporting rod; and the leg rest fixing brace includes left and right leg rest fixing braces portions provided on said supporting fixed plate to match left and right ones of the leg rest supporting rods. 8. A tattoo chair of claim 7, wherein a position-matched leg rest extension is provided on a lower end of said leg rest, where snap spring holes are provided; fixing axes with grooves are provided on a side of said leg rest extension connected to the leg rest; the fixing axes are removably inserted into the snap spring holes in the lower end of the leg rest, to removably connect the leg rest extension to the leg rest. 9. A tattoo chair of claim 1, wherein a spring extends between a lower part of the inner side of said seat and the supporting rod. 10. A tattoo chair of claim 9, wherein a leg rest is rotatably attached to the seat; said leg rest is a symmetrically separate structure comprising a left part and a right part and wherein a position-matched leg rest extension is removably disposed on a lower end of said leg rest. 11. A tattoo chair of claim 9, wherein armrests are provided on the left, right, or both sides of said seat and backrest; snap spring holes are provided in said seat and backrest; fixing axes are provided on sides of both ends of said armrests to match the snap spring holes, and grooves for positioning are provided on the fixing axes to match the snap springs in the snap spring holes. 12. A tattoo chair of claim 9, wherein a headrest is adjustably mounted on the top of said backrest. 13. A tattoo chair of claim 1, wherein a headrest is removably mounted on a top of said backrest; a fixing axis with grooves is provided at a bottom of said headrest; a snap spring hole is provided on an upper surface of said backrest to match the fixing axis. 14. A tattoo chair of claim 13, wherein an arc hole is provided in a center of said headrest. 15. A tattoo chair of claim 14, wherein a cushion is provided on a surface of said headrest, and said cushion is removably connected with the headrest. 16. A tattoo chair of claim 15 wherein the backrest includes an upper portion and a lower portion adjacent the seat, the lower portion has a reduced lateral width relative to the upper portion for facilitating straddling the tattoo chair and facing toward the backrest. 17. An adjustable tattoo chair, comprising: a seat base supported in an elevated position;a seat back extending from the seat base and pivotally movable relative to the seat base between an upright position and a generally horizontal position, wherein at least one of the seat base and the seat back includes a narrowed portion adjacent the other of said at least one of the seat base and the seat back for facilitating straddling of the tattoo chair;a rack gear mounted orthogonally relative to an intersection axis between the seat base and the seat back; anda pivotally mounted member pivotally connected to the seat base and having a free end configured to engage the rack gear for securing the seat back at a desired angle of inclination relative to the seat base, the pivotally mounted member being biased toward the seat back. 18. The adjustable tattoo chair of claim 17 wherein the seat base includes the narrowed portion. 19. The adjustable tattoo chair of claim 17 further including a headrest removably connected to the seat back, the headrest including a main body having a face recess defined therein and a pillow cover removably secured to the main body for selectively covering the face recess. 20. The adjustable tattoo chair of claim 17 wherein the seat back includes the narrowed portion. 21. The adjustable tattoo chair of claim 20 wherein the seat back includes raised bolster portions disposed along lateral sides of the seat back. 22. An adjustable tattoo chair, comprising: a seat base supported in an elevated position;a seat back extending from the seat base and pivotally movable relative to the seat base between an upright position and a generally horizontal position;a rack gear mounted vertically to the seat back;a supporting rod having a proximal end pivotally connected to the seat base and a free end configured to removably engage the rack gear at a select gear location along the rack gear for securing the seat back at a desired angle of inclination relative to the seat base;a brace for supporting the seat base, the seat base being rotatable around an axis defined by the brace; anda support member depending from an underside of the seat base, the support member defining a pivot location at which the supporting rod is pivotally mounted, the pivot location spaced apart from the underside of the seat base. 23. The adjustable tattoo chair of claim 22 wherein the seat back includes a narrowed section adjacent the seat base to enable a person supported by the tattoo chair to straddle the tattoo chair and face toward the seat back.