Tattoo pen with adjustable needle stroke

Abstract

The present invention discloses a tattoo pen with adjustable needle stroke, which comprises a pen body, an integrated needle connection part and an adjustment part, wherein the integrated needle connection part and the pen body are connected via the adjustment part; a motor is fixed inside the pen body, an eccentric wheel is fixed on the output shaft at the bottom end of the motor, a swing disk is connected to the outer cover of the eccentric wheel, and the motor drives the eccentric wheel to rotate to drive the swing disk to swing; a retractable push rod part is connected inside the integrated needle connection part, and the top end of the push rod part contacts the eccentric position of the bottom surface of the swing disk; the relative position between the pen body and the integrated needle connection part can be changed through the adjustment part, so that the distance between the top end of the push rod part and the center of the swing disk is changed. The present invention can not only adjust the needle stroke during operation, but also has the advantages of convenient operation of adjusting the needle stroke, convenient use, convenient replacement of the integrated needle and good stability.

Description

Technical Field

[0001] The invention relates to a tattoo device, in particular to a tattoo pen with adjustable needle stroke. Background Art

[0002] At present, the needle-out stroke of existing tattoo pens is determined by the telescopic stroke of the push rod, and the stroke of the eccentric disk driven by the motor in general tattoo pens is fixed, and the extension stroke of the push rod driven by the eccentric disk is also fixed, so that the needle-out stroke of the tattoo pen is fixed during operation; when adjusting the needle-out stroke of such tattoo pens, it is necessary to first turn off the power and stop the machine, then replace the eccentric disk, or change the connection position between the push rod and the eccentric disk, which is troublesome to operate. Therefore, the existing tattoo pens have the problem that the needle-out stroke is not adjustable during operation and the operation of adjusting the needle-out stroke is troublesome. Summary of the invention

[0003] The purpose of the present invention is to provide a tattoo pen with adjustable needle stroke. The present invention can not only adjust the needle stroke during operation, but also has the advantage of convenient operation of adjusting the needle stroke.

[0004] The technical solution of the present invention is as follows: a tattoo pen with adjustable needle stroke, comprising a pen body, an integrated needle connecting part and an adjusting part, wherein the integrated needle connecting part and the pen body are connected through the adjusting part; a motor is fixed inside the pen body, an eccentric wheel is fixed on the output shaft at the bottom end of the motor, a swing disk is connected to the outer shell of the eccentric wheel, and the motor drives the eccentric wheel to rotate to drive the swing disk to swing; a retractable push rod part is connected inside the integrated needle connecting part, and the top end of the push rod part contacts the eccentric position of the bottom surface of the swing disk; the relative position between the pen body and the integrated needle connecting part can be changed through the adjusting part, thereby changing the distance between the top end of the push rod part and the center of the swing disk.

[0005] In the aforementioned tattoo pen with adjustable needle stroke, the pen body and the integrated needle connecting part are both cylindrical, and the central axes of the two are located on the same straight line; the pen body and the integrated needle connecting part can rotate relative to each other through the adjusting part.

[0006] In the aforementioned tattoo pen with adjustable needle-extraction stroke, the center of the swing disk is arranged to be offset from the central axis of the pen body.

[0007] In the aforementioned tattoo pen with adjustable needle stroke, the integrated needle connecting part comprises a connecting part and a handle shell which are threadedly connected to each other, and a through hole for the extension and retraction of the ejector rod is provided on the connecting part.

[0008] In the aforementioned tattoo pen with adjustable needle-extraction stroke, a clamping portion for connecting the integrated needle is provided at the bottom of the handle shell.

[0009] In the aforementioned tattoo pen with adjustable needle stroke, the push rod part includes a push rod arranged in the through hole, a moving block is fixed to the top end of the push rod, and a spring sleeved outside the push rod is connected between the moving block and the connecting part; a telescopic rod is connected to the moving block, and the top end of the telescopic rod contacts an eccentric position arranged on the bottom surface of the swing plate, and the swing of the swing plate can drive the moving block and the push rod to extend and retract through the telescopic rod.

[0010] In the aforementioned tattoo pen with adjustable needle-extraction stroke, a guide portion is connected between the moving block and the connecting portion, and the guide portion enables the moving block to move only along the direction of the through hole.

[0011] In the aforementioned tattoo pen with adjustable needle stroke, the adjustment part includes an outer ring fixed on the integrated needle connecting part, and the outer ring is externally threaded with an adjustment sleeve; the adjustment sleeve and the pen body are mutually clamped, and the adjustment sleeve and the pen body can rotate relative to each other.

[0012] In the aforementioned tattoo pen with adjustable needle stroke, a clamping ring hook is clamped on the outer ring; a limiting groove is provided on the outer side wall of the pen body at a position corresponding to the clamping ring hook, and the limiting groove is arranged circumferentially; the hook part of the clamping ring hook passes through the outer ring and is arranged in the limiting groove.

[0013] In the aforementioned tattoo pen with adjustable needle stroke, a steel ball protruding outward is provided on the outer side wall of the pen body; and a plurality of circumferentially distributed positioning grooves are provided on the inner side wall of the adjustment sleeve at positions corresponding to the steel ball.

[0014] Compared with the prior art, the present invention connects the integrated needle connecting part and the pen body through an adjusting part, and can cause relative movement between the integrated needle connecting part and the pen body through the adjusting part (the two can be relative rotation or relative translation), so that the push rod part in the integrated needle connecting part moves relative to the swing disk (the eccentric distance increases or decreases); when the swing disk is driven by the motor to swing, the telescopic stroke of the push rod part changes, thereby changing the needle outlet stroke of the integrated needle when the push rod part pushes the integrated needle, and the entire adjustment operation is more convenient; and the adjustment operation does not require stopping the motor in advance, and the adjustment can be performed directly when the motor is working. In addition, the pen body and the integrated needle connecting part of the present invention are both cylindrical, which is convenient for grasping and using; the central axes of the pen body and the integrated needle connecting part are located on the same straight line, and the center of the swinging disk is arranged to be offset from the central axis of the pen body, so that the pen body and the integrated needle connecting part rotate relative to each other, and the swinging disk and the push rod part will be offset, and the needle ejection stroke can be changed by simply rotating; the motor pressing piece threadedly connected to the bottom of the pen body can better press and fix the motor in the pen body, and the wires connected to the wire interface at the top of the pen body are not easy to interfere with the user's use; the integrated needle connecting part includes a connecting part and a handle shell that are threadedly connected to each other, and the relative position between the two can be changed by relative rotation between the two, thereby changing the needle ejection distance of the integrated needle on the handle shell pushed by the push rod part; the clamping part at the bottom of the handle shell can be disassembled and assembled with the integrated needle, which is convenient for fixing and replacing the integrated needle; the telescopic rod is pushed by the swinging disk when it swings, and the telescopic rod drives the push rod to be extended and retracted in the through hole through the moving block, and the guide part is connected to the moving block, so that the eccentrically arranged telescopic rod can better drive the position when it is extended and retracted. The push rod at the center position is telescopic, and the driving stability is good; the adjusting part includes an outer ring and an adjusting sleeve that are threadedly connected to each other, so that the position between the integrated needle connecting part and the pen body is relatively flat, which is convenient for grasping and rotating; the pen body can be rotated relative to the adjusting sleeve and the integrated needle connecting part by rotating the pen body, and the hook part in the clamping ring hook connected to the outer ring cooperates with the limiting groove arranged circumferentially on the pen body to limit the rotation angle; when the user adjusts the needle ejection stroke, it is prevented that the telescopic rod is too close to the middle of the swing disk or the telescopic rod is outwardly separated from the swing disk, which causes equipment failure, and ensures the working stability of the equipment; the outer side wall of the pen body is provided with a steel ball protruding outward, and at the same time, the inner side wall of the adjusting sleeve is provided with a plurality of circumferentially distributed positioning grooves, and the positioning groove and the steel ball cooperate to increase the clamping stability between the pen body and the adjusting sleeve (a spring can be added inside the steel ball to make the steel ball have a certain elasticity, and the stability can be increased while maintaining the smoothness of rotation), and only when the user rotates the adjusting sleeve, the adjusting sleeve and the pen body will rotate relative to each other, and the stability is good. Therefore, the present invention can not only adjust the needle ejection stroke during operation, but also has the advantages of more convenient operation of adjusting the needle ejection stroke, more convenient use, more convenient integrated needle replacement and better stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 is an exploded view of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the adjustment sleeve.

[0018] The marks in the accompanying drawings are: 1-pen body, 2-integrated needle connecting part, 3-adjusting part, 4-motor, 5-eccentric wheel, 6-swinging plate, 8-connecting part, 9-handle shell, 10-through hole, 11-clamping part, 12-top rod, 13-moving block, 14-spring, 15-telescopic rod, 16-guide part, 17-outer ring, 18-adjusting sleeve, 19-clamping ring hook, 20-limiting groove, 21-steel ball, 22-positioning groove. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0020] Embodiment. A tattoo pen with adjustable needle stroke, comprising: Figures 1 to 3 As shown, it includes a pen body 1, an integrated needle connecting part 2 and an adjusting part 3, and the integrated needle connecting part 2 and the pen body 1 are connected through the adjusting part 3; a motor 4 is fixed inside the pen body 1, an eccentric wheel 5 is fixed on the output shaft at the bottom end of the motor 4, and a swing disk 6 is connected to the outer cover of the eccentric wheel 5, and the motor 4 drives the eccentric wheel 5 to rotate to drive the swing disk 6 to swing; a retractable push rod part is connected inside the integrated needle connecting part 2, and the top end of the push rod part contacts the eccentric position of the bottom surface of the swing disk 6; the relative position between the pen body 1 and the integrated needle connecting part 2 can be changed through the adjusting part 3, so that the distance between the top end of the push rod part and the center of the swing disk 6 changes.

[0021] The pen body 1 and the integrated needle connecting part 2 are both cylindrical, and the central axes of the two are located on the same straight line; the pen body 1 and the integrated needle connecting part 2 can rotate relative to each other through the adjusting part 3; the center of the swing disk 6 is set at a position offset from the central axis of the pen body 1; the integrated needle connecting part 2 includes a connecting part 8 and a handle shell 9 that are threadedly connected to each other, and the connecting part 8 is provided with a through hole 10 for the extension and retraction of the push rod part; the bottom of the handle shell 9 is provided with a clamping part 11 for connecting the integrated needle; the push rod part includes a push rod 12 arranged in the through hole 10, and a moving block 13 is fixed to the top end of the push rod 12, and a spring 14 is connected between the moving block 13 and the connecting part 8 and is sleeved on the outside of the push rod 12; a telescopic rod 15 is connected to the moving block 13, and the top end of the telescopic rod 15 is contacted at an eccentric position set on the bottom surface of the swing disk 6, and the swing of the swing disk 6 can drive the moving block 12 through the telescopic rod 15 The movable block 13 and the push rod 12 are telescopic; a guide portion 16 is connected between the movable block 13 and the connecting portion 8, and the guide portion 16 enables the movable block 13 to move only along the direction of the through hole 10; the adjusting portion 3 includes an outer ring 17 fixed on the integral needle connecting portion 2, and the outer ring 17 is externally threaded with an adjusting sleeve 18; the adjusting sleeve 18 and the pen body 1 are mutually clamped, and the adjusting sleeve 18 and the pen body 1 can rotate relative to each other; a snap ring hook 19 is clamped on the outer ring 17; a limiting groove 20 is provided on the outer wall of the pen body 1 at a position corresponding to the snap ring hook 19, and the limiting groove 20 is circumferentially arranged; the hook part of the snap ring hook 19 passes through the outer ring 17 and is arranged in the limiting groove 20; a steel ball 21 protruding outward is provided on the outer wall of the pen body 1; a plurality of circumferentially distributed positioning grooves 22 are provided on the inner wall of the adjusting sleeve 18 at a position corresponding to the steel ball 21.

[0022] Working principle: connect the wires at the wire interface at the top of the pen body 1, then turn on the power switch on the wire to make the motor 4 work; the motor 4 drives the inclined eccentric wheel 5 to rotate (the central axis of the eccentric wheel 5 is inclined relative to the axial hole of the eccentric wheel 5, and the axial hole of the eccentric wheel 5 is fixed to the output shaft of the motor 4), thereby driving the swing plate 6 connected to the outer shell of the eccentric wheel 5 to swing; when the swing plate 6 swings downward, it can push the telescopic rod 15 to extend downward on the connecting part 8, and because a guide is provided between the moving block 13 and the connecting part 8 The part 16 (adding a guide rod to the moving block 13, and setting guide grooves on the upper and lower ends of the guide rod and the telescopic rod 15 on the connecting part 8) makes the telescopic rod 15 extend downward to drive the moving block 13 to move vertically downward synchronously, and compress the spring 14 to make the push rod 12 extend vertically downward in the through hole 10 of the connecting part 8; when the swing plate 6 swings upward, the top of the telescopic rod 15 loses the downward thrust, and the spring 14 can push the moving block 13 upward, so that the top of the telescopic rod 15 is always in contact with the swing plate 6, and the push rod 12 is retracted. When the push rod 12 is extended, it can push the integrated needle mounted on the clamping part 11 at the bottom end of the handle shell 9, so that the needle in the integrated needle can be extended; the handle shell 9 can be rotated and extended relative to the connecting part 8 through the thread, changing the distance between the integrated needle clamped on the handle shell 9 and the bottom end surface of the push rod 12, thereby changing the needle length of the integrated needle.

[0023] When it is necessary to adjust the needle ejection stroke, it is only necessary to make the pen body 1 and the integrated needle connecting part 2 rotate relative to each other through the adjusting part 3 (the adjusting sleeve 18 can be rotated to rotate the outer ring 17 and the integrated needle connecting part 2, or the pen body 1 can be rotated); the distance between the rotation axis of the motor 4 (i.e., the center of the swing disk 6) and the axis of the telescopic rod 15 will change, and the swing angle Q of the swing disk 6 is fixed. According to the tangent function of the triangle tanQ=opposite side / adjacent side, an increase or decrease in the adjacent side will cause the opposite side to increase or decrease accordingly, that is, the stroke of the telescopic rod 15 driven by the swing disk 6 to extend and retract will change, thereby causing the needle ejection stroke of the integrated needle pushed by the push rod 12 to change.

[0024] The hook portion of the clamping ring hook 19 clamped on the outer ring 17 cooperates with the limiting groove 20 circumferentially arranged on the pen body 1 to limit the rotation angle and avoid matching failure between the telescopic rod 15 and the swing plate 6.

[0025] The steel balls 21 on the outer wall of the pen body 1 cooperate with the multiple circumferentially distributed positioning grooves 22 on the inner wall of the adjustment sleeve 18 to increase the clamping stability between the pen body 1 and the adjustment part 3; only when the user rotates the pen body 1 and the adjustment sleeve 18 relative to each other will relative rotation occur between the two, and the stability during use is better.

Claims

1. A tattoo pen with adjustable needle stroke, characterized in that: The invention comprises a pen body (1), an integrated needle connecting part (2) and an adjusting part (3), wherein the integrated needle connecting part (2) and the pen body (1) are connected via the adjusting part (3); a motor (4) is fixed inside the pen body (1), an eccentric wheel (5) is fixed on the output shaft at the bottom end of the motor (4), a swinging disc (6) is connected to the outer shell of the eccentric wheel (5), and the motor (4) drives the eccentric wheel (5) to rotate, thereby driving the swinging disc (6) to swing; a retractable push rod part is connected inside the integrated needle connecting part (2), and the top end of the push rod part is contacted and arranged at an eccentric position on the bottom surface of the swinging disc (6); the relative position between the pen body (1) and the integrated needle connecting part (2) can be changed via the adjusting part (3), thereby changing the distance between the top end of the push rod part and the center of the swinging disc (6); the pen body (1) and the integrated needle connecting part (2) are both cylindrical, and the central axes of the two are located on the same straight line; the pen body (1) and the integrated needle connecting part (2) can be retracted via the adjusting part (3) The pendulum (6) is provided with a center that is offset from the center axis of the pen body (1); the integrated needle connecting portion (2) comprises a connecting portion (8) and a handle shell (9) that are mutually threadedly connected, the connecting portion (8) being provided with a through hole (10) for the extension and retraction of the push rod portion; the push rod portion comprises a push rod (12) arranged in the through hole (10), a moving block (13) being fixed to the top of the push rod (12), a sleeve arranged on the top of the push rod (12) being connected between the moving block (13) and the connecting portion (8) The movable block (13) is connected to a telescopic rod (15), the top end of the telescopic rod (15) being arranged in contact with an eccentric position of the bottom surface of the swing plate (6), and the swing plate (6) can drive the movable block (13) and the top rod (12) to be extended and retracted through the telescopic rod (15); a guide portion (16) is connected between the movable block (13) and the connecting portion (8), and the guide portion (16) enables the movable block (13) to move only along the direction of the through hole (10).

2. A tattoo pen with adjustable needle stroke according to claim 1, characterized in that: The bottom of the handle housing (9) is provided with a clamping portion (11) for connecting with an integrated needle.

3. A tattoo pen with adjustable needle stroke according to claim 1, characterized in that: The adjusting portion (3) comprises an outer ring (17) fixed on the integrated needle connecting portion (2), and the outer ring (17) is externally threadedly connected to an adjusting sleeve (18); the adjusting sleeve (18) and the pen body (1) are mutually clamped, and the adjusting sleeve (18) and the pen body (1) can rotate relative to each other.

4. A tattoo pen with adjustable needle stroke according to claim 3, characterized in that: A snap ring hook (19) is clamped on the outer ring (17); a limiting groove (20) is provided on the outer side wall of the pen body (1) at a position corresponding to the snap ring hook (19), and the limiting groove (20) is arranged in a circumferential direction; a hook portion of the snap ring hook (19) passes through the outer ring (17) and is arranged in the limiting groove (20).

5. The tattoo pen with adjustable needle stroke according to claim 3, characterized in that: The outer side wall of the pen body (1) is provided with a steel ball (21) protruding outward; and the inner side wall of the adjustment sleeve (18) is provided with a plurality of circumferentially distributed positioning grooves (22) at positions corresponding to the steel ball (21).

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