hair dye

Abstract

This application discloses a hair dyeing device. The hair dyeing device includes: a housing with a mounting position, a liquid outlet channel, and a liquid outlet. The mounting position is used for detachably mounting at least two dye bottles. The liquid outlet channel is configured to correspond one-to-one with each dye bottle and connects the dye bottle to the liquid outlet. A flow regulating mechanism is disposed in the liquid outlet channel to control the liquid flow rate of the liquid outlet channel, thereby controlling the mixing ratio of the hair dye flowing out of the liquid outlet. The hair dyeing device of this application has a flow regulating mechanism on each liquid outlet channel, and the liquid flow rate of each liquid outlet channel can be adjusted, thereby realizing the adjustment of the mixing ratio of the hair dye flowing out of the liquid outlet.

Description

Technical Field

[0001] This application relates to the field of hair dyeing technology, and more particularly to a hair dyeing device. Background Technology

[0002] A hair dyeing device is a tool that mixes various hair dyes and then applies the mixture to the hair. It has multiple liquid channels to dispense different hair dyes; the dyes flow out of their respective channels, mix, and are then applied to the hair. Current hair dyeing devices cannot adjust the mixing ratio of the dyes, thus failing to meet users' needs for customizing the mixing ratio to suit their desired color. Utility Model Content

[0003] The purpose of this application is to provide a hair dyeing device to solve the problem that existing hair dyeing devices cannot adjust the mixing ratio of hair dye.

[0004] To achieve the above objectives, this application provides the following technical solution: A hair dyeing device, comprising: The housing has an internal mounting position, a liquid outlet channel, and a liquid outlet. The mounting position is used to detachably mount at least two dye bottles. The liquid outlet channel is configured to correspond one-to-one with the dye bottles and connect the dye bottles and the liquid outlet. A flow regulating mechanism is provided in the liquid outlet channel to control the liquid output of the liquid outlet channel, thereby controlling the mixing ratio of the hair dye flowing out of the liquid outlet. At least two pistons are capable of extending into the dye bottle and moving along the inner wall of the dye bottle to squeeze out the hair dye from the dye bottle; A first driving member is connected to the piston via a transmission mechanism, and the first driving member can drive the piston to move along the inner wall of the dye bottle toward the bottom of the dye bottle.

[0005] In some embodiments, the flow regulation mechanism includes: An adjusting element, provided on the housing, is capable of sliding or rotating on the housing; A connector is disposed in the housing and connected to the adjusting member; A valve plate is disposed in the liquid outlet channel. The valve plate is connected to the connecting member so that the valve plate slides or rotates with the adjusting member, thereby controlling the liquid outlet volume of the liquid outlet channel.

[0006] In some embodiments, the housing is provided with a scale for indicating the opening degree of the adjustment member.

[0007] In some embodiments, the flow regulation mechanism includes: The second driving component is disposed inside the housing and on the side of the liquid outlet channel; A valve plate is connected to the output end of the second driving member. The second driving member can drive the valve plate to move radially along the liquid outlet channel to control the liquid outlet volume.

[0008] In some embodiments, the flow regulating mechanism is a solenoid valve; and / or The flow regulating mechanism is a ball valve.

[0009] In some embodiments, the first driving element is a motor, and the first driving element is connected to each of the pistons via a transmission structure, the transmission structure comprising: The first gear is located on the output shaft and rotates synchronously with the output shaft. The rotor of the first driving member is connected to an output shaft. The second gear meshes with the first gear; The lead screw is connected to the second gear and rotates synchronously with the second gear. The nut is connected to the lead screw and the piston. The rotation of the lead screw can drive the nut and the piston to move linearly.

[0010] In some embodiments, each piston is provided with a corresponding second gear, and the diameter of the second gear corresponding to each piston is different, so as to adjust the moving speed of the piston by the diameter difference of each second gear, thereby adjusting the liquid output.

[0011] In some embodiments, the hair dye device further includes: The comb head is detachably disposed in the housing. The comb head includes comb teeth, each comb tooth having a liquid outlet hole. The comb head has a mixing chamber, and the liquid outlet, the mixing chamber, and the liquid outlet hole are connected in sequence.

[0012] In some embodiments, the housing includes: A first housing and a second housing, wherein the second housing is detachably connected to the first housing, and a plurality of connecting seats are provided at one end of the first housing connected to the second housing. The connecting seats are used to connect the dye bottle, and the connecting seats and the inner cavity of the second housing together form the mounting position.

[0013] In some embodiments, one of the connector and the dye bottle is provided with an internal thread, and the other is provided with an external thread, and the dye bottle is threadedly connected to the connector.

[0014] The advantages of this application are: The hair dyeing device of this application is equipped with a flow regulating mechanism on each hair dye outlet channel, so that the flow rate of each hair dye can be adjusted to regulate the mixing ratio of the hair dye flowing out of the outlet, thereby meeting the user's need to adjust the mixing ratio of the hair dye according to their own needs. Attached Figure Description

[0015] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the hair dyeing device in the embodiments of this application; Figure 2 This is an exploded view of the hair dyeing device in an embodiment of this application; Figure 3 This is a schematic diagram of the cross-sectional structure of the hair dyeing device in an embodiment of this application; Figure 4 for Figure 3 A structural schematic diagram from another perspective of the structure shown; Figure 5 for Figure 4 A magnified structural diagram of part A in the middle; Figure 6 This is a schematic diagram of the outer shell structure in an embodiment of this application; Figure 7 This is a schematic diagram of the flow regulation mechanism in the embodiments of this application; Figure 8 This is a schematic diagram of another embodiment of the flow regulating mechanism in this application. Figure 9 This is a schematic diagram of another embodiment of the flow regulation mechanism in this application. Figure 10 This is a schematic diagram showing the separation of the first driving component, transmission structure, and piston in an embodiment of this application; Figure 11 This is a schematic diagram of the structure of the first driving component, transmission structure and piston assembly in the embodiments of this application; Figure 12 This is a schematic diagram of the cross-sectional structure of the comb in an embodiment of this application; Figure 13 This is an exploded view of the comb in an embodiment of this application; Figure 14 This is a schematic diagram of the structure of the dye bottle in an embodiment of this application.

[0016] The attached diagram lists the components represented by each number as follows: 10. Hair dyeing device; 1001. Dye bottle; 1002. Bottle cap; 1003. External thread; 100. Housing; 101. Mounting position; 102. Liquid outlet; 103. Liquid outlet channel; 104. Through hole; 105. Scale; 106. Locking hole; 110. First housing; 111. Connecting seat; 1111. Internal thread; 120. Second housing; 200. Piston; 300. First driving component; 301. Output shaft; 310. Transmission structure; 311. First gear; 312. Second gear; 313. Lead screw; 314. Nut; 400. Flow regulating mechanism; 411. Regulating component; 412. Connecting component; 413. Valve plate; 421. Second driving component; 430. Solenoid valve; 440. Ball valve; 500, comb head; 501, mixing chamber; 510, buckle; 520, comb teeth; 521, liquid outlet; 530, mixing component; 531, mixing channel; 600, Battery; 700, Main control board; 800, Buttons. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0019] In the description of this embodiment, the terms "upper," "lower," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used only for distinction in description and have no special meaning.

[0020] This application provides a hair dyeing device. The hair dyeing device of this application is suitable for scenarios where multiple hair dyes are extruded and mixed. Since people have different needs for hair color when dyeing their hair, and color changes need to be achieved by altering the mixing ratio of the various hair dyes, existing hair dyeing devices have a fixed extrusion flow rate of the hair dye, making it impossible to customize the mixing ratio of the hair dyes and thus customize the hair color. This application employs the following technical means to solve this problem.

[0021] like Figures 1 to 4As shown, in this embodiment of the application, the hair dyer 10 includes a housing 100. A mounting position 101 is provided inside the housing 100. The mounting position 101 is used for detachably mounting at least two dye bottles 1001. Before use, the dye bottles 1001 are individual bottles, such as... Figure 14 As shown, when you need to dye your hair, you should... Figure 14 Open the cap 1002 of the hair dye bottle 1001 and install the hair dye bottle 1001 into the mounting position 101 of the hair dyeing device 10. Then you can use the hair dyeing device 10 to start dyeing your hair.

[0022] like Figure 6 As shown, the housing 100 is also provided with a liquid outlet 102 and a liquid outlet channel 103. The liquid outlet channel 103 is provided one-to-one with each dye bottle 1001, with each dye bottle 1001 corresponding to one liquid outlet channel 103. The liquid outlet channel 103 connects the dye bottle 1001 and the liquid outlet 102, allowing the hair dye in the dye bottle 1001 to flow from the liquid outlet channel 103 to the liquid outlet 102, so that the hair dye in each dye bottle 1001 flows out and mixes at the liquid outlet 102, forming a mixed hair dye for hair dyeing. Figure 6 As shown, the liquid outlet channel 103 is a liquid outlet pipe, with one end connected to the liquid outlet 102 and the other end extending into the dye bottle 1001. In other optional embodiments, the liquid outlet channel 103 may be a channel integrally formed in the housing 100, or part of the liquid outlet channel 103 may be a pipe and the other part may be a channel integrally formed in the housing 100. The specific structure of the liquid outlet channel 103 is not limited here. It is understood that the liquid outlet channel 103 corresponds one-to-one with the dye bottle 1001, and each dye bottle 1001 is provided with one corresponding liquid outlet channel 103, which connects the dye bottle 1001 to the liquid outlet 102.

[0023] In the embodiments of this application, such as Figure 3 As shown, the hair dyeing device 10 also includes a piston 200, which is configured one-to-one with the dye bottle 1001, with each dye bottle 1001 having a corresponding piston 200. The piston 200 can extend into the dye bottle 1001 and move along the inner wall of the dye bottle 1001 to squeeze out the hair dye in the dye bottle 1001, squeezing the hair dye from the corresponding liquid outlet channel 103 to the liquid outlet 102.

[0024] In the embodiments of this application, such as Figure 3 As shown, the hair dyer 10 also includes a first driving member 300. The first driving member 300 is connected to the piston 200 in a transmission manner, and the first driving member 300 can drive the piston 200 to move along the inner wall of the dye bottle 1001 toward the bottom of the dye bottle 1001.

[0025] In this embodiment, the first driving component 300 is used to drive the piston 200 to move, thereby squeezing the dye bottle 1001 to squeeze out the hair dye in the dye bottle 1001. There is no need to manually pump the hair dye, which is convenient to operate and saves time and effort.

[0026] In the embodiments of this application, such as Figure 3 and Figure 4 As shown, the hair dyeing device 10 also includes a flow regulating mechanism 400, which is disposed on the liquid outlet channel 103. Each liquid outlet channel 103 is provided with a flow regulating mechanism 400, thereby controlling the liquid output of each liquid outlet channel 103, and thus controlling the mixing ratio of the hair dye mixture flowing out of the liquid outlet 102, meeting the user's need to adjust the hair dye mixing ratio according to their own needs.

[0027] In one embodiment, such as Figure 5 and Figure 7 As shown, the flow regulating mechanism 400 includes an regulating component 411, a connecting component 412, and a valve plate 413. Figure 1 As shown, the adjusting member 411 is disposed on the housing 100, specifically on the outside of the housing 100, so that the adjusting member 411 can be pushed from outside the housing 100. (Reference) Figure 1 The adjusting element 411 can slide or rotate on the housing 100. For example... Figure 5 As shown, the connector 412 is disposed in the housing 100 and is connected to the adjusting member 411. The adjusting member 411 drives the connector 412 to slide or rotate synchronously. The valve plate 413 is disposed on the liquid outlet channel 103 and is connected to the connector 412, so that the valve plate 413 slides or rotates with the adjusting member 411. In this way, the flow rate of the liquid outlet channel 103 can be controlled by the valve plate 413.

[0028] In one embodiment, such as Figure 1 and Figure 7 As shown, the adjusting element 411 is a push button, as... Figure 1 As indicated by the dashed arrow, the adjusting member 411 can slide laterally on the housing 100. (Reference) Figure 5 The valve plate 413 is slidably connected to the liquid outlet channel 103, and the valve plate 413 can also slide laterally left and right along the liquid outlet channel 103. (Reference) Figure 7 When the adjusting component 411 is pushed, the valve plate 413 slides synchronously, thereby adjusting the opening of the liquid outlet channel 103 and controlling the flow rate.

[0029] It is understandable that the valve plate 413 and the liquid outlet channel 103 are sealed together, for example by using a sealing ring or other sealing structure, so as to prevent the hair dye in the liquid outlet channel 103 from leaking out from the gap between the valve plate 413 and the liquid outlet channel 103.

[0030] In other alternative embodiments, refer to Figure 8 As shown, the adjusting member 411 is a rotating member, such as a turntable, rotatably connected to the housing 100. Figure 8 As shown, the rotating component can rotate around the rotating shaft I. The valve plate 413 is rotatably connected to the liquid outlet channel 103. When the adjusting component 411 is rotated, it can drive the valve plate 413 in the liquid outlet channel 103 to rotate synchronously, thereby adjusting the opening of the liquid outlet channel 103 and thus regulating the flow rate.

[0031] It is understandable that, such as Figure 2 As shown, the housing 100 is provided with a through hole 104, such as Figure 5 As shown, the through hole 104 is used to allow the adjusting member 411 to connect to the valve plate 413 inside the housing 100 through the through hole 104.

[0032] In one embodiment, as shown in Figure 1, the housing 100 is provided with a scale 105 for indicating the opening degree of the adjusting member 411. The opening degree of the adjusting member 411 is read by observing which line of the scale 105 the pointer on the adjusting member 411 aligns with. It can be understood that if the adjusting member 411 is a rotating member, the scale 105 is also correspondingly set to be circular, surrounding the rotating member, so that the scale 105 can be read when the adjusting member 411 rotates.

[0033] In one embodiment, such as Figure 9 As shown, the flow regulating mechanism 400 includes a second driving member 421 and a valve plate 413. The second driving member 421 can be a cylinder or other linear driving member. The second driving member 421 is disposed inside the housing 100 and is located on the side of the liquid outlet channel 103 to drive the valve plate 413 to move. The valve plate 413 is connected to the output end of the second driving member 421, and the second driving member 421 can drive the valve plate 413 to move radially along the liquid outlet channel 103, thereby controlling the liquid output of the liquid outlet channel 103. The second driving member 421 can be controlled by the button 800 on the hair dyer 10, thereby controlling the working state of the second driving member 421 to control the opening degree of the valve plate 413, thereby controlling the flow rate.

[0034] In other alternative embodiments, such as Figure 5 As shown, the flow regulating mechanism 400 can also be a solenoid valve 430 or a ball valve 440. Solenoid valves 430 and ball valves 440 can also be installed simultaneously; for example, solenoid valves 430 can be installed on some outlet channels 103, while ball valves 440 can be installed on others.

[0035] In one embodiment, such as Figure 3As shown, the first driving component 300 is a motor. The first driving component 300 is connected to each piston 200 via a transmission structure 310, thereby enabling one motor to drive multiple pistons 200 to move synchronously. This reduces the number of first driving components 300, saves space, and shrinks the size of the hair dyer 10. Specifically, as... Figure 10 As shown, the transmission structure 310 includes a first gear 311, a second gear 312, a lead screw 313, and a nut 314. The rotor of the first driving member 300 is connected to an output shaft 301. The first gear 311 is mounted on the output shaft 301 and is fixedly connected to the output shaft 301, thereby causing the first gear 311 to rotate synchronously with the output shaft 301. The second gear 312 meshes with the first gear 311. The lead screw 313 is connected to the second gear 312; specifically, the lead screw 313 is fixed at the center of the second gear 312, and the lead screw 313 rotates synchronously with the second gear 312. It can be understood that the outer circumference of the lead screw 313 is provided with an external thread. The nut 314 is connected to the lead screw 313, forming a lead screw 313-nut 314 structure. The nut 313 is provided with an internal thread that mates with the external thread of the lead screw 313, and the rotation of the lead screw 313 drives the nut 314 to move up and down. Meanwhile, nut 314 is connected to piston 200, and the up and down movement of nut 314 can drive piston 200 to move synchronously. In this way, the linear movement of nut 314 and piston 200 can be driven by the rotation of lead screw 313.

[0036] The aforementioned transmission structure 310 transmits torque through the meshing of the second gear 312 and the first gear 311. This allows control of the piston 200's vertical movement speed by adjusting the diameter ratio of the second gear 312 to the first gear 311. When the first driving component 300 is a motor, due to its high rotational speed, by setting the second gear 312 to mesh with the first gear 311 and making the diameter of the second gear 312 larger than that of the first gear 311, the rotational speed of the second gear 312 can be lower than that of the first gear 311. This slows down the vertical movement of the piston 200, preventing damage to the hair dyeing device 10 caused by excessively fast vertical movement of the piston 200.

[0037] In one embodiment, such as Figure 11 As shown, each piston 200 is equipped with a corresponding second gear 312. The diameter of the second gear 312 corresponding to each piston 200 is different, so as to adjust the moving speed of the piston 200 by the difference in diameter of each second gear 312, thereby adjusting the liquid output. Figure 11 In this configuration, there are two pistons 200, each of which meshes with a first gear 311 via a second gear 312. The diameter of the second gear 312 corresponding to each piston 200 is different, such as... Figure 11The diameter of the second gear 312 on the left is larger than that of the second gear 312 on the right. As a result, the rotational speed of the second gear 312 on the left is lower than that of the second gear 312 on the right. Consequently, the lifting speed of the piston 200 on the left is lower than that of the piston 200 on the right. Therefore, the liquid discharge speed of the liquid discharge channel 103 corresponding to the piston 200 on the left is also slower, which can further achieve flow control.

[0038] In one embodiment, such as Figure 2 As shown, the hair dyer 10 also includes a comb head 500. The comb head 500 is detachably mounted on the housing 100. Figure 2 As shown, a buckle 510 is provided on the comb head 500, and a corresponding locking hole 106 is provided on the housing 100. The comb head 500 is detachably connected to the housing 100 through the locking of the buckle 510 and the locking hole 106. Of course, the comb head 500 and the housing 100 can also be detachably connected through other detachable structures, such as locking grooves and locking protrusions. Figure 13 As shown, the comb head 500 includes comb teeth 520, and the comb teeth 520 are provided with liquid outlet holes 521. For example... Figure 12 As shown, the comb 500 is provided with a mixing chamber 501, which, in conjunction with... Figure 4 and Figure 12 The outlet 102, the mixing chamber 501, and the outlet hole 521 on the housing 100 are connected in sequence, so that the various hair dyes flowing out from the outlet hole 521 of the housing 100 are fully mixed in the mixing chamber 501 before flowing out from the outlet 102.

[0039] like Figure 12 and Figure 13 As shown, a mixing component 530 is provided in the mixing chamber 501. A mixing channel 531 is provided in the mixing component 530, one end of which communicates with the mixing chamber 501, and the other end of which communicates with the outlet 102 of the housing 100. This increases the length of the flow channel in the mixing chamber 501. After the hair dye flows out from the outlet 102, it... (The sentence is incomplete and ends abruptly.) Figure 12 The dye first passes through the mixing channel 531 in the mixing component 530 and then enters the mixing chamber 501, where it is distributed to each comb tooth 520. This increases the length of the flow channel in the mixing chamber 501, which can improve the mixing effect of the hair dye.

[0040] like Figure 12 As shown, the mixing chamber 501 extends in a direction perpendicular to the comb teeth 520, and the mixing component 530 is also arranged along the length direction of the mixing chamber 501. The end face of the mixing component 530 and the mixing chamber 501 has a gap, and the hair dye in the mixing component 530 flows into the mixing chamber 501 through the gap.

[0041] like Figure 2 and Figure 6As shown, the housing 100 includes a first housing 110 and a second housing 120. The second housing 120 is detachably connected to the first housing 110. Figure 6 As shown, a plurality of connecting seats 111 are provided at one end where the first housing 110 connects to the second housing 120. The connecting seats 111 are used to connect the dye bottle 1001. Figure 4 and Figure 6 The connecting seat 111 and the inner cavity of the second housing 120 together form the mounting position 101 to mount the dye bottle 1001. The bottle mouth of the dye bottle 1001 is connected to the connecting seat 111, and the bottle body of the dye bottle 1001 is accommodated in the second housing 120.

[0042] In this embodiment of the application, one of the connecting seat 111 and the dye bottle 1001 is provided with an internal thread 1111, and the other is provided with an external thread 1003, and the dye bottle 1001 is threadedly connected to the connecting seat 111. Figure 4 As shown, the connector 111 has an internal thread 1111, and the mouth of the dye bottle 1001 has an external thread 1003. In other embodiments, the connector 111 may also have an external thread 1003, and the mouth of the dye bottle 1001 may have an internal thread 1111.

[0043] like Figure 4 As shown, the hair dye also includes a battery 600, a main control board 700, and a button 800. The battery 600 and the main control board 700 are disposed inside the housing 100, and the button 800 is disposed on the housing. The battery 600, the first drive unit 300, the second drive unit 421, and the button 800 are all electrically connected to the main control board 700 to control the working state of the hair dye 10 through the main control board 700.

[0044] The technical features in the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The embodiments described above merely illustrate the implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A hair color applicator, comprising: include: The housing has a mounting position, a liquid outlet channel, and a liquid outlet. The mounting position is used to detachably mount at least two dye bottles. The liquid outlet channel is configured to correspond one-to-one with the dye bottles and connect the dye bottles and the liquid outlet. A flow regulating mechanism is provided in the liquid outlet channel to control the liquid output of the liquid outlet channel, thereby controlling the mixing ratio of the hair dye flowing out of the liquid outlet.

2. The hair dyeing device according to claim 1, characterized in that, The flow regulation mechanism includes: An adjusting element, provided on the housing, is capable of sliding or rotating on the housing; A connector is disposed in the housing and connected to the adjusting member; A valve plate is disposed in the liquid outlet channel. The valve plate is connected to the connecting member so that the valve plate slides or rotates with the adjusting member, thereby controlling the liquid outlet volume of the liquid outlet channel.

3. The hair dyeing device according to claim 2, characterized in that, The housing is provided with a scale for indicating the opening degree of the adjusting member.

4. The hair dyeing device according to claim 1, characterized in that, The flow regulation mechanism includes: The first driving component is disposed inside the housing and on the side of the liquid outlet channel; A valve plate is connected to the output end of the first driving member. The first driving member can drive the valve plate to move radially along the liquid outlet channel to control the liquid outlet volume.

5. The hair dyeing device according to claim 1, characterized in that, The flow regulating mechanism is a solenoid valve; and / or The flow regulating mechanism is a ball valve.

6. The hair dyeing device according to claim 1, characterized in that, Also includes: A piston is provided, corresponding to each of the dye bottles. The piston can extend into the dye bottle and move along the inner wall of the dye bottle to squeeze out the dye from the dye bottle. The second driving component is connected to the piston in a transmission manner, and the second driving component can drive the piston to move along the inner wall of the dye bottle towards the bottom of the dye bottle.

7. The hair dyeing device according to claim 6, characterized in that, The second driving component is a motor, and the second driving component is connected to each of the pistons through a transmission structure, the transmission structure including: The first gear and the rotor of the second driving member are connected to an output shaft, and the first gear is located on the output shaft and rotates synchronously with the output shaft; The second gear meshes with the first gear; The lead screw is connected to the second gear and rotates synchronously with the second gear. The nut is connected to the lead screw and the piston. The rotation of the lead screw can drive the nut and the piston to move linearly.

8. The hair dyeing device according to claim 7, characterized in that, Each piston is provided with a corresponding second gear, and the diameter of the second gear corresponding to each piston is different, so as to adjust the moving speed of the piston by the difference in diameter of each second gear, thereby adjusting the liquid output.

9. The hair dyeing device according to any one of claims 1 to 8, characterized in that, Also includes: The comb head is detachably disposed in the housing. The comb head includes comb teeth, each comb tooth having a liquid outlet hole. The comb head has a mixing chamber, and the liquid outlet, the mixing chamber, and the liquid outlet hole are connected in sequence.

10. The hair dyeing device according to any one of claims 1 to 8, characterized in that, The housing includes: A first housing and a second housing, wherein the second housing is detachably connected to the first housing, and a plurality of connecting seats are provided at one end of the first housing connected to the second housing. The connecting seats are used to connect the dye bottle, and the connecting seats and the inner cavity of the second housing together form the mounting position.

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