Embroidery pen with detachable rotary needle head

Abstract

The utility model discloses a tattooing pen with a detachable rotary needle head, which comprises a main body shell internally provided with a motor, and the bottom end of the motor is eccentrically connected with an inclined driving disc; a connecting block is arranged below the driving disc, a telescopic block is slidably connected into the connecting block, a reset spring is arranged between the telescopic block and the connecting block, and a driving column arranged on the bottom face of the driving disc in a contact mode is connected to the telescopic block. The bottom end of the telescopic block is connected with a clamping needle base located below the connecting block, and the clamping needle base is eccentrically arranged relative to the main body shell. A necking seat is rotationally connected in the clamping needle seat, a cylindrical clamping needle chuck is in threaded connection in the necking seat, and a pin header is clamped and fixed in the clamping needle chuck; and a clamping needle locking ring is sleeved outside the clamping needle chuck and is positioned below the main body shell. The utility model not only can reduce the cost of consumables, but also has the advantages of better applicability, more convenience in operation, higher stability in use, higher durability and lower noise.

Description

Technical Field

[0001] The utility model relates to the field of tattoo and embroidery equipment, in particular to a tattoo and embroidery pen with a detachable rotating needle. Background Art

[0002] The tattoo pen is the most commonly used tool in the eyebrow tattoo process. It can inject pigment into the skin through the needles on the top, thereby tattooing eyebrow lines on the skin.

[0003] Traditional tattoo pens have a row of tattoo needles directly connected to the end of the pen shaft. The user manually dips the pen shaft into the paint and then manually drives the pen shaft and the row of tattoo needles to tattoo the user's eyebrows. With the development of technology, existing tattoo pens, similar to the one disclosed in ZL202322082371.6, are equipped with a drive assembly, a transmission assembly, and an embroidery assembly. These embroidery needles are automatically driven up and down by an electric motor, achieving automatic acupuncture and facilitating easy use. However, since the needles come into direct contact with blood during use and are directly connected to the embroidery assembly, the entire embroidery assembly must be discarded after each use, resulting in high consumable costs. Furthermore, the embroidery assembly has a specific gripping position and pigment inlet. When replacing a single needle in the embroidery assembly with an embroidery needle row for tattooing, the distance and orientation of the needle row relative to the operator are fixed, making it difficult to accommodate different operator habits. Furthermore, when tattooing lines at multiple angles, the operator must move their entire body or the person being tattooed must also move their body to adjust their position, which is inconvenient.

[0004] Therefore, existing tattoo pens have the problems of high consumables cost, poor applicability and inconvenient operation. Utility Model Content

[0005] The purpose of the present invention is to provide a tattoo pen with a detachable rotating needle. The present invention not only reduces the cost of consumables, but also has the advantages of good applicability and convenient operation.

[0006] The technical solution of the utility model: a tattoo pen with a detachable rotating needle head, comprising a main shell, a vertical motor connected inside the main shell, and an inclined driving disk eccentrically connected to the output shaft at the bottom end of the motor; a connecting block connected to the main shell is provided below the driving disk, a vertical telescopic block is slidably connected inside the connecting block, a return spring is provided between the telescopic block and the connecting block, and the telescopic block is connected to a driving column contacting the bottom surface of the driving disk; the bottom end of the telescopic block is connected to a needle holder located below the connecting block, the needle holder is vertically slidably arranged at the bottom of the main shell, and the needle holder is eccentrically arranged relative to the main shell; a necking seat is rotatably connected to the needle holder, and a cylindrical needle chuck is threadedly connected to the necking seat, and a row of needles is clamped and fixed in the needle chuck; the needle chuck outer sleeve is provided with a needle locking ring that is clamped between the bottom end of the necking seat and the bottom of the needle chuck, and the needle locking ring is located below the main shell.

[0007] In the aforementioned tattoo pen with a detachable rotating needle, the bottom of the needle holder is provided with a plurality of cards arranged in a circular manner, and the inner side of the bottom of each card is provided with an arc-shaped protrusion; the outer side of the bottom of the necking seat is provided with an annular card groove corresponding to the arc-shaped protrusion.

[0008] In the aforementioned tattoo pen with a detachable rotating needle, a plurality of positioning holes evenly distributed in a ring shape are provided on the inner side of the top of the needle holder; a ball plunger corresponding to the positioning holes is connected to one side of the top of the necking holder.

[0009] In the aforementioned tattoo pen with a detachable rotating needle, the telescopic block includes a vertical connecting rod, and the top of the connecting rod is integrally connected to a counterweight block; the driving column is slidably inserted into the top of the counterweight block, and the top of the driving column protrudes above the counterweight block and is hemispherical; the bottom of the counterweight block is slidably inserted with a vertical rod passing through the middle of the return spring, and the return spring is clamped between the counterweight block and the connecting block; a yield groove is provided at the position of the connecting block corresponding to the counterweight block, and vertical guide holes are provided at the positions of the connecting block corresponding to the vertical rod and the connecting rod; the bottom ends of the vertical rod and the connecting rod are respectively inserted into the two sides of the top of the needle seat, and the bottom end of the connecting rod is connected to a fixing screw clamped in the needle seat.

[0010] In the aforementioned tattoo pen with a detachable rotating needle, protrusions are provided on both side surfaces of the counterweight block; and vertical guide grooves are provided on the corresponding protrusions on both sides of the give way groove.

[0011] In the aforementioned tattoo pen with a detachable rotating needle, the connecting rod is provided with an annular protrusion, which is slidably arranged in the guide hole.

[0012] In the aforementioned tattoo pen with a detachable rotating needle, the bottom of the connecting block is stepped and retracted inward, and the outer contour of the bottom of the connecting block is non-cylindrical; a positioning slot corresponding to the bottom of the connecting block is provided in the main shell, and when the positioning slot corresponds to the bottom of the connecting block, the connecting block cannot rotate relative to the main shell; a locking ring is threadedly connected to the top position of the connecting block in the main shell.

[0013] In the aforementioned tattoo pen with a detachable rotating needle, the outer contour of the bottom of the connecting block is in the shape of a runway.

[0014] In the aforementioned tattoo pen with a detachable rotating needle, the main body shell includes an upper shell and a lower shell distributed up and down, the upper shell encloses the motor, and the lower shell is threadedly connected to the bottom of the upper shell.

[0015] In the aforementioned tattoo pen with a detachable rotating needle, the top of the main shell is rotatably connected to a card connector, and the top of the card connector is threadedly connected to the shell; a control panel and a battery are connected inside the shell, and a display screen electrically connected to the control panel and a plurality of buttons facing the control panel are connected to one side of the shell, and a charging port electrically connected to the battery is connected to the shell; a conductive plate electrically connected to the battery is connected inside the card connector; and a plurality of spring conductive columns electrically connected to the motor are connected inside the top of the main shell.

[0016] Compared with the prior art, the present invention has a cylindrical needle chuck threadedly connected to the inner thread of the necking seat, and a needle locking ring is provided on the outer shell of the needle chuck, which is clamped between the bottom end of the necking seat and the bottom of the needle chuck, so that the internal needle row can be clamped and released by rotating the needle chuck. Only the needle row needs to be replaced after each use, and the cost of consumables is low. The needle seat is eccentrically arranged relative to the main shell, so that the user can rotate the main shell to change the gripping position to adjust the distance between the needle row and the user, thereby improving applicability. At the same time, since the necking seat is rotatably connected to the needle seat, the user can rotate the needle row relative to the main shell to adjust the direction of the needle row relative to the user, so that the user does not need to move himself or the person being tattooed when tattooing multi-angle lines, and the operation is more convenient.

[0017] In addition, the bottom of the needle seat in the present invention is provided with a plurality of cards distributed in an annular manner, and the inner side of the bottom of each card is provided with an arc-shaped protrusion, so that the necking seat can be extended into or pulled out of the needle seat, and the bottom of the necking seat is provided with an annular card groove corresponding to the arc-shaped protrusion, so that the necking seat can be stably rotated and connected in the needle seat; at the same time, a ball head plunger is connected to one side of the top of the necking seat, and a plurality of positioning holes evenly distributed in an annular manner are provided on the inner side of the top of the needle seat, so that the ball head plunger can cooperate with the positioning holes, so that the necking seat can be positioned in multiple positions during the rotation process relative to the needle seat, avoiding the automatic rotation and deviation of the needle row during use, and ensuring the stability of the needle row position during use.

[0018] By plugging the drive column and the vertical rod into the counterweight block, easily worn drive columns and vertical rods can be replaced, reducing maintenance costs. The counterweight block and the connecting rod are integrated to ensure the strength and weight distribution of the entire telescopic block, ensuring durability during use while also increasing the stability of the telescopic block during extension and retraction. The bottom ends of the connecting rod and the vertical rod are respectively plugged into the two sides of the top of the needle holder, allowing the telescopic block to stably drive the needle holder to move up and down, reducing wear and noise caused by force deviation on the needle holder. The protrusions on both sides of the counterweight block can cooperate with the two guide grooves on the clearance groove, and the vertical rod and the connecting rod slide in conjunction with the guide hole in the connecting block, providing good guidance for the telescopic block as it moves up and down relative to the connecting block, ensuring stability during operation. At the same time, the annular protrusion on the connecting rod slides into the guide hole, ensuring the guiding effect while reducing the friction area, thereby reducing wear and noise.

[0019] The connection block cooperates with the positioning slot in the main shell through its runway-shaped bottom, and a locking ring is threadedly connected to the top of the connection block, so that the connection block can be stably connected to the main shell, improving the stability of the overall structure during operation.

[0020] By rotating and snapping a shell on the top of the main shell, and connecting a battery with a charging port and a control panel with buttons and a display screen inside the shell, the user can perform long-term wireless operation, which is more convenient to use; at the same time, the shell can be rotated relative to the main shell, so that the user can adjust the direction of the display screen at any time when adjusting the position and direction of the pin header relative to the main shell, which is convenient for the user to observe and operate.

[0021] Therefore, the utility model can not only reduce the cost of consumables, but also has the advantages of good applicability, convenient operation, high stability during use, high durability and low noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 It is an exploded view of the utility model;

[0024] Figure 3 It is a structural diagram of the shell part;

[0025] Figure 4 It is a schematic diagram of the structure inside the main shell;

[0026] Figure 5 It is a cross-sectional view of the lower shell portion;

[0027] Figure 6 It is a structural diagram of the connecting block and the telescopic block.

[0028] The marks in the accompanying drawings are: 1-main body shell, 2-motor, 3-drive disk, 4-connecting block, 5-telescopic block, 6-reset spring, 7-drive column, 8-needle seat, 9-shrinkage seat, 10-needle chuck, 11-pin row, 12-needle locking ring, 13-card, 14-arc protrusion, 15-annular groove, 16-positioning hole, 17-ball plunger, 18-connecting rod, 19-counterweight, 20-vertical pole, 21-allowance groove, 22-guide hole, 23-fixing screw, 24-protrusion, 25-guide groove, 26-annular protrusion, 27-positioning groove, 28-locking ring, 29-upper shell, 30-lower shell, 31-card joint, 32-shell, 33-control board, 34-battery, 35-display, 36-button, 37-charging port, 38-conductive plate, 39-spring conductive column. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0030] Embodiment. A tattoo pen with a detachable rotating needle, comprising: Figures 1 to 6 As shown, it includes a main shell 1, a vertical motor 2 is connected to the main shell 1, and an inclined drive disk 3 is eccentrically connected to the output shaft at the bottom end of the motor 2; a connecting block 4 connected to the main shell 1 is provided below the drive disk 3, and a vertical telescopic block 5 is slidably connected to the connecting block 4, and a return spring 6 is provided between the telescopic block 5 and the connecting block 4, and the telescopic block 5 is connected to a driving column 7 which is contacted and arranged on the bottom surface of the drive disk 3; the bottom end of the telescopic block 5 is connected to a card needle seat 8 located below the connecting block 4, and the card needle seat 8 is vertically slidably arranged at the bottom of the main shell 1, and the card needle seat 8 is eccentrically arranged relative to the main shell 1; a necking seat 9 is rotatably connected to the card needle seat 8, and a cylindrical card needle chuck 10 is threadedly connected to the necking seat 9, and a pin row 11 is clamped and fixed in the card needle chuck 10; the card needle chuck 10 is provided with a card needle locking ring 12 which is clamped between the bottom end of the necking seat 9 and the bottom of the card needle chuck 10, and the card needle locking ring 12 is located below the main shell 1.

[0031] The bottom of the needle seat 8 is provided with a plurality of cards 13 arranged in an annular manner, and the inner side of the bottom of each card 13 is provided with an arc-shaped protrusion 14; the outer side of the bottom of the necking seat 9 is provided with an annular card groove 15 corresponding to the arc-shaped protrusion 14; the inner side of the top of the needle seat 8 is provided with a plurality of positioning holes 16 evenly distributed in an annular manner; one side of the top of the necking seat 9 is connected to a ball head plunger 17 corresponding to the positioning holes 16; the telescopic block 5 includes a vertical connecting rod 18, and the top of the connecting rod 18 is integrally connected to a counterweight block 19; the driving column 7 is slidably inserted and arranged on the top of the counterweight block 19, and the top of the driving column 7 protrudes above the counterweight block 19 and is hemispherical; The bottom of the counterweight block 19 is slidably plugged with a vertical rod 20 that passes through the middle of the return spring 6, and the return spring 6 is clamped between the counterweight block 19 and the connecting block 4; a clearance groove 21 is provided on the connecting block 4 at the position corresponding to the counterweight block 19, and vertical guide holes 22 are provided at the positions corresponding to the vertical rod 20 and the connecting rod 18 on the connecting block 4; the bottom ends of the vertical rod 20 and the connecting rod 18 are respectively plugged into the two sides of the top of the needle seat 8, and the bottom end of the connecting rod 18 is connected to a fixing screw 23 clamped in the needle seat 8; protrusions 24 are provided on both sides of the counterweight block 19; vertical guide grooves are provided on the positions corresponding to the protrusions 24 on both sides of the clearance groove 21 25; The connecting rod 18 is provided with an annular protrusion 26, which is slidably arranged in the guide hole 22; the bottom of the connecting block 4 is stepped and retracted inward, and the outer contour of the bottom of the connecting block 4 is non-cylindrical; the main shell 1 is provided with a positioning groove 27 corresponding to the bottom of the connecting block 4, and when the positioning groove 27 corresponds to the bottom of the connecting block 4, the connecting block 4 cannot rotate relative to the main shell 1; a locking ring 28 is threadedly connected to the top position of the connecting block 4 in the main shell 1; the outer contour of the bottom of the connecting block 4 is runway-shaped; the main shell 1 includes an upper shell 29 and a lower shell 30 distributed in an upper and lower manner, and the upper shell 29 The motor 2 is enclosed inside, and the lower shell 30 is threadedly connected to the bottom of the upper shell 29; the top of the main shell 1 is rotatably connected to a card connector 31, and the top of the card connector 31 is threadedly connected to a shell 32; a control panel 33 and a battery 34 are connected inside the shell 32, and a display screen 35 electrically connected to the control panel 33 and a plurality of buttons 36 facing the control panel 33 are connected to one side of the shell 32, and a charging port 37 electrically connected to the battery 34 is connected to the shell 32; a conductive plate 38 electrically connected to the battery 34 is connected inside the card connector 31; and a plurality of spring conductive columns 39 electrically connected to the motor 2 are connected inside the top of the main shell 1.

[0032] Working Principle: Place the pin header into the clamping groove on the pin chuck 10, then rotate the pin chuck 10 relative to the necking seat 9 to shorten the distance between the pin chuck 10 and the necking seat 9. The pin locking ring 12 can move toward the bottom of the pin chuck 10, tightening the clamping groove at the bottom of the pin chuck 10 inward, thereby fixing the pin header in the pin chuck 10. Next, the user can insert the necking seat 9 into the pin holder 8, so that the annular clamping groove 15 at the bottom of the necking seat 9 rotates and engages with the arc-shaped protrusions 14 on the inner side of the multiple clips 13 at the bottom of the pin holder 8. At the same time, the steel ball in the ball plunger 17 on the top side of the necking seat 9 engages with the positioning hole 16 on the inner side of the top of the pin holder 8. Because the pin holder 8 is eccentrically arranged relative to the main housing 1, the user can rotate the main housing 1 to change the gripping position to adjust the distance between the pin header 11 and the user.

[0033] When in use, first insert the card connector 31 at the bottom of the shell 32 into the top of the main shell 1, so that the card connector 31 is rotated and connected to the top of the main shell 1, and the conductive plate 38 in the card connector 31 is in contact with the multiple spring conductive columns 39 on the top of the main shell 1; then, the user holds the main shell 1 to dip the pin 11 into the external paint, and then inputs a signal to the control board 33 through the button 36 on the shell 32, so that the control board 33 can control the motor 2 to connect with the battery 34 and move at a certain rotation frequency; the motor 2 After the rotation, the inclined driving disc 3 is driven to rotate, and under the action of the return spring 6, the telescopic block 5 can be extended and retracted relative to the connecting block 4 (that is, when the driving disc 3 swings down, the driving disc 3 drives the entire counterweight block 19 to move downward in the clearance groove 21 through the driving column 7, and the connecting rod 18 and the vertical rod 20 under the counterweight block 19 move downward along the guide hole 22 in the connecting block 4, and compress the return spring 6 set outside the vertical rod 20, thereby driving the shrinking seat 9, the card needle chuck 10, the card needle locking ring 12 and the pin header through the card needle seat 8). 11 moves downward synchronously; when the driving disk 3 swings up, the restoring force of the reset spring 6 itself can drive the counterweight 19 and the driving column 7 on the counterweight 19 to move up, and the connecting rod 18 integrally provided with the counterweight 19 moves up synchronously. Since the connecting rod 18 is connected to the needle seat 8 by a fixing screw 23, the needle seat 8 and the shrinking seat 9 are rotated and clamped. When the connecting rod 18 moves up, it can drive the needle seat 8, the vertical rod 20, the shrinking seat 9 and the needle chuck 10 connected to the shrinking seat 9, the needle locking ring 12 and the pin header 11 to move synchronously. Then the user moves the needle row 11 dipped in paint to a suitable position to perform the embroidery operation; during the embroidery process, the user can pinch the needle locking ring 12 located below the main body shell 1 to rotate the necking seat 9 relative to the needle seat 8 (rotate in the direction of the threaded locking between the necking seat 9 and the needle clamp 10), so that the needle row 11 rotates relative to the main body shell 1, thereby adjusting the direction of the needle row 11 relative to the user, so that the user does not need to move himself or the person being tattooed when tattooing multi-angle lines, and the operation is more convenient.

[0034] During the embroidery process, the ball plunger 17 on one side of the top of the necking seat 9 can cooperate with the positioning hole 16 on the inner side of the top of the needle seat 8. When the needle seat 8 drives the necking seat 9 to move up and down, the necking seat 9 is not easily rotated relative to the needle seat 8, ensuring that the position of the needle row 11 is not easily changed. The drive column 7 and the vertical rod 20 are both connected to the counterweight block 19 by plugging, making it easy to replace the drive column 7 and the vertical rod 20 that are prone to wear. The counterweight block 19 and the connecting rod 18 are integrated to ensure the strength of the entire telescopic block 5. The protrusions 24 on both sides of the counterweight block 19 can cooperate with the two guide grooves 25 on the clearance groove 21. The vertical rod 20 and the connecting rod 18 slide together with the guide hole 22 in the connecting block 4, providing a good guiding effect for the telescopic block 5 when it moves up and down relative to the connecting block 4, ensuring the stability of the equipment during operation. At the same time, the connecting rod 18 is slidably arranged in the guide hole 22 through the annular protrusion 26, which reduces the friction area while ensuring the guiding effect, reducing wear and noise.

[0035] The connecting block 4 cooperates with the positioning slot 27 in the main shell 1 through its runway-shaped bottom, and a locking ring 28 threaded in the main shell 1 is provided on the top of the connecting block 4, so that the connecting block 4 can be stably connected in the main shell 1, thereby improving the stability of the overall structure during operation.

[0036] The top of the main housing 1 is connected to a housing 32 by a snap-on connector 31. When the user adjusts the angle of the pin header 11, the housing 32 rotates synchronously, aligning the display 35 and buttons 36 on the housing 32 with the user, making it easier to observe and control the controls. A battery 34 with a charging port 37 is connected to the housing 32, allowing for extended wireless operation and greater convenience.

[0037] The main shell 1 is composed of an upper shell 29 and a lower shell 30 which are threadedly connected, and the upper shell 29 covers the motor 2. After separating the lower shell 30 from the upper shell 29, the easily worn parts in the lower shell 30 can be easily disassembled and replaced, and the maintenance operation is more convenient; after each use is completed, the pin header 11, the pin locking ring 12, the pin chuck 10 and the shrinking seat 9 can be directly taken out from the pin seat 8, and the pin header 11 can be loosened and replaced by rotating the pin chuck 10 in the opposite direction.

Claims

1. A tattoo pen with a detachable rotating needle, comprising a main body shell (1), a vertical motor (2) connected inside the main body shell (1), and an inclined drive disk (3) eccentrically connected to the output shaft at the bottom end of the motor (2); characterized in that: A connecting block (4) connected to the main body shell (1) is provided below the driving disk (3); a vertical telescopic block (5) is slidably connected inside the connecting block (4); a return spring (6) is provided between the telescopic block (5) and the connecting block (4); a driving column (7) contacting the bottom surface of the driving disk (3) is connected to the telescopic block (5); the bottom end of the telescopic block (5) is connected to a card needle seat (8) located below the connecting block (4); the card needle seat (8) is vertically slidably provided outside the main body. At the bottom of the shell (1), the card needle seat (8) is eccentrically arranged relative to the main shell (1); a necking seat (9) is rotatably connected to the card needle seat (8), and a cylindrical card needle chuck (10) is threadedly connected to the necking seat (9), and a pin row (11) is clamped and fixed in the card needle chuck (10); the outer shell of the card needle chuck (10) is provided with a card needle locking ring (12) that is clamped between the bottom end of the necking seat (9) and the bottom of the card needle chuck (10), and the card needle locking ring (12) is located below the main shell (1).

2. The tattoo pen with a detachable rotating needle according to claim 1, characterized in that: The bottom of the needle seat (8) is provided with a plurality of cards (13) arranged in an annular manner, and the inner side of the bottom of each card (13) is provided with an arc-shaped protrusion (14); the outer side of the bottom of the necking seat (9) is provided with an annular card groove (15) corresponding to the arc-shaped protrusion (14).

3. The tattoo pen with a detachable rotating needle according to claim 1, characterized in that: A plurality of positioning holes (16) evenly distributed in an annular shape are provided on the inner side of the top of the needle seat (8); and a ball plunger (17) corresponding to the positioning holes (16) is connected to one side of the top of the necking seat (9).

4. The tattoo pen with a detachable rotating needle according to claim 1, characterized in that: The telescopic block (5) includes a vertical connecting rod (18), the top of which is integrally connected to a counterweight block (19); the driving column (7) is slidably inserted on the top of the counterweight block (19), and the top of the driving column (7) protrudes above the counterweight block (19) and is hemispherical; the bottom of the counterweight block (19) is slidably inserted with a vertical rod (20) passing through the middle of the return spring (6), and the return spring (6) is clamped between the counterweight block (19) and the connecting rod. Between the connecting blocks (4); a clearance groove (21) is provided at the position of the connecting block (4) corresponding to the counterweight block (19), and a vertical guide hole (22) is provided at the position of the connecting block (4) corresponding to the vertical rod (20) and the connecting rod (18); the bottom ends of the vertical rod (20) and the connecting rod (18) are respectively inserted into the two sides of the top of the needle seat (8), and the bottom end of the connecting rod (18) is connected to a fixing screw (23) clamped in the needle seat (8).

5. The tattoo pen with a detachable rotating needle according to claim 4, characterized in that: Both sides of the counterweight block (19) are provided with protrusions (24); and the positions of the relief groove (21) corresponding to the protrusions (24) on both sides are provided with vertical guide grooves (25).

6. The tattoo pen with a detachable rotating needle according to claim 4, characterized in that: The connecting rod (18) is provided with an annular protrusion (26), and the annular protrusion (26) is slidably arranged in the guide hole (22).

7. The tattoo pen with a detachable rotating needle according to claim 1, characterized in that: The bottom of the connecting block (4) is stepped and inwardly contracted, and the outer contour of the bottom of the connecting block (4) is non-cylindrical; a positioning slot (27) corresponding to the bottom of the connecting block (4) is provided in the main housing (1); when the positioning slot (27) is engaged with the bottom of the connecting block (4), the connecting block (4) cannot rotate relative to the main housing (1); a locking ring (28) is threadedly connected to a position corresponding to the top of the connecting block (4) in the main housing (1).

8. The tattoo pen with a detachable rotating needle according to claim 7, characterized in that: The outer contour of the bottom of the connecting block (4) is in the shape of a racetrack.

9. The tattoo pen with a detachable rotating needle according to claim 1, characterized in that: The main housing (1) comprises an upper housing (29) and a lower housing (30) which are arranged in an upper and lower manner. The upper housing (29) encloses the motor (2) therein, and the lower housing (30) is threadedly connected to the bottom of the upper housing (29).

10. The tattoo pen with a detachable rotating needle according to claim 1, characterized in that: The top of the main housing (1) is rotatably connected to a card connector (31), and the top of the card connector (31) is threadedly connected to a housing (32); a control panel (33) and a battery (34) are connected inside the housing (32); a display screen (35) electrically connected to the control panel (33) and a plurality of buttons (36) facing the control panel (33) are connected on one side of the housing (32); a charging port (37) electrically connected to the battery (34) is connected on the housing (32); a conductive plate (38) electrically connected to the battery (34) is connected inside the card connector (31); and a plurality of spring conductive columns (39) electrically connected to the motor (2) are connected inside the top of the main housing (1).

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