Application head and application device

Abstract

The utility model discloses a smearing head and a smearing device, the smearing head comprises a base, a main body part and a roller, the base is provided with a connecting hole, and the base is used for being connected with a liquid supply container to enable the connecting hole to be communicated with the liquid supply container; the main body part is flat, a mounting groove is formed in one end of the main body part in the height direction, the other end of the main body part is rotationally connected with the base, a liquid supply channel is formed in the main body part, one end of the liquid supply channel penetrates through the groove wall of the mounting groove, and the other end of the liquid supply channel is rotationally connected with the base. The other end of the liquid supply channel is communicated with or staggered from the connecting hole along with the rotation of the main body part; the rolling wheel is in a long strip shape and is arranged in the length direction of the main body part, one part of the rolling wheel is located in the mounting groove and is rotationally connected with the main body part, and the rotating axis between the rolling wheel and the main body part is in the length direction of the main body part. Through the arrangement, a user can conveniently hold to rotate the main body part, so that liquid is prevented from flowing out randomly.

Description

Technical Field

[0001] The utility model relates to the technical field of skin therapy devices, in particular to an application head and an application device. Background Art

[0002] To promote cosmetic absorption, some cosmetic devices currently feature functional heads that are not only equipped with a liquid outlet channel but also with functional components such as light therapy and massage elements. These are used in conjunction with the liquid outlet channel. One end of the liquid outlet channel is connected to the cosmetic container. During use, the liquid in the cosmetic container can be squeezed to flow from the liquid outlet channel to the other end, allowing the liquid to contact the user's skin. However, when carrying such products, it is inevitable that the cosmetic container will be squeezed, causing the liquid to flow out of the liquid outlet channel. This not only wastes the liquid, but also contaminates the liquid squeezed into the liquid outlet channel, further soiling surrounding items. Utility Model Content

[0003] The main purpose of the utility model is to provide an applicator head and an applicator device, which are designed to close the connection between the liquid supply container and the applicator head by rotation when there is no need for use, thereby preventing the liquid in the liquid supply container from flowing out at will, thereby making it easy to carry the applicator device.

[0004] To achieve the above-mentioned purpose, the present invention provides a coating head, comprising:

[0005] a base, the base being provided with a connecting hole, the base being used to connect to the liquid supply container so that the connecting hole is in communication with the liquid supply container;

[0006] a main body, the main body being flat, with a mounting groove formed at one end in the height direction of the main body and the other end being rotatably connected to the base, a liquid supply channel being formed on the main body, one end of the liquid supply channel penetrating the groove wall of the mounting groove, and the other end of the liquid supply channel being connected to or staggered with the connecting hole as the main body rotates; and

[0007] The roller is in the shape of an elongated strip and is arranged along the length direction of the main body. A portion of the roller is located in the mounting groove and is rotatably connected to the main body. The rotation axis between the roller and the main body is along the length direction of the main body.

[0008] Optionally, the main body includes an outer shell and a supporting shell, the outer shell is hollow and one end of which is through-hole to form a notch of the mounting slot, the supporting shell is located inside the outer shell and together with the supporting shell form the mounting slot;

[0009] A limiting convex edge is provided on the inner wall of the shell near the notch, and the support shell abuts against a side of the limiting convex edge facing away from the notch.

[0010] Optionally, a limiting rib is provided at one end of the support shell away from the notch, and a limiting groove is further provided on the inner wall of the shell, and the limiting rib cooperates with the limiting groove.

[0011] Optionally, the support shell is provided with an annular groove, the annular groove is arranged around the notch and a sealing ring is embedded in the annular groove, and the support shell is sealedly connected to the inner wall of the outer shell through the sealing ring.

[0012] Optionally, the supporting shell is a light-transmitting member, and a plurality of surrounding walls are provided on a side of the supporting shell away from the notch, and the plurality of surrounding walls are spaced apart along the length direction of the main body;

[0013] The applicator head further includes a phototherapy lamp having a plurality of light-emitting elements, the plurality of light-emitting elements being arranged in a one-to-one correspondence with the plurality of surrounding walls, and the light-emitting elements being located within a space enclosed by the surrounding walls;

[0014] The surrounding wall is a light-shielding structure, or a circle of light-shielding elements is provided on the inner side of the surrounding wall.

[0015] Optionally, the main body also includes a mounting bracket, a circuit board and a battery. The mounting bracket is located inside the outer shell and is arranged between the support shell and the base. The mounting bracket includes a first mounting part and a second mounting part. The first mounting part is a cavity structure open to the support shell, and the circuit board and the battery are fixed in the first mounting part; the second mounting part is arranged on the side of the first mounting part facing the base, and the second mounting part is an annular structure. The inner wall of the second mounting part is provided with a first step surface, and the first step surface faces away from the base. The base has a connecting sleeve that is plugged into the second mounting part, and the connecting sleeve has a second step surface, and the second step surface abuts against the first step surface. The connecting sleeve is used for connection of the liquid supply container.

[0016] Optionally, a receiving groove is provided on a side of the first mounting portion facing the base, the first mounting portion is provided with an insertion hole penetrating the bottom of the receiving groove, the second mounting portion is arranged around the receiving groove, and a sealing gasket is fixed in the receiving groove;

[0017] The supporting shell has a liquid supply pipe, the liquid supply pipe forms the liquid supply channel, the end of the liquid supply pipe is plugged into the insertion hole and is in sealing contact with the sealing gasket, and the sealing gasket is provided with a communication hole corresponding to the insertion hole;

[0018] The end portion of the connecting sleeve is in sealing contact with the sealing gasket.

[0019] Optionally, the liquid supply pipe is eccentrically arranged relative to the rotation axis between the main body and the base, and one end of the liquid supply pipe that passes through the groove wall of the installation groove is located in the middle of the length direction of the installation groove and is arranged away from the middle of the width direction of the installation groove.

[0020] Optionally, the applicator head also includes a phototherapy lamp, which has a lamp board. The supporting shell is provided with a clip, which is clipped onto the side of the lamp board facing away from the slot, and the open end of the first mounting portion is also supported on the side of the lamp board facing away from the slot.

[0021] The present invention provides a coating device, comprising:

[0022] liquid supply container;

[0023] and a coating head, wherein the base of the coating head is connected to the liquid supply container.

[0024] The technical solution in the embodiment of the present invention is to provide a large and elongated roller, the rotation axis of the roller is along its own length direction, the rotation radius is small, and it is easier to change its rotation state, that is, the rotation is faster and more flexible, and the comfort during massage is better. At the same time, the roller can also more easily bring the liquid out of the installation groove by utilizing its flexible rotation. Furthermore, the flat main body is more compatible with the elongated roller in shape, which is beneficial for the roller to make full use of the shape of the main body for a reasonable layout and realize the rational use of space. In addition, since the main body is flat, it is convenient for the user to hold the main body along the width direction, which is convenient for the user to hold and achieves the effect of saving effort, so that the main body is rotated relative to the base to realize the connection or stagger of the liquid supply channel and the connecting hole.

[0025] Furthermore, the main body can be connected to the base in a rotatable manner to achieve connection or staggered connection between the liquid supply channel and the connecting hole. When in the connected position, the liquid in the liquid supply container can pass through the connecting hole and the liquid supply channel in sequence to reach the mounting groove, and finally be rolled on the roller and applied to the user's skin; when in the staggered position, the connecting hole is blocked by the main body and liquid cannot be discharged. Even if the liquid supply container is squeezed by external force, the liquid in the liquid supply container cannot be squeezed out. Therefore, the liquid supply container can be closed by rotation when there is no need for use, so as to prevent the liquid in the liquid supply container from flowing out at will, thereby making it convenient to carry the application device with you. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic structural diagram of a coating device in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the structure of the applicator head;

[0029] Figure 3 for Figure 2 A cross-sectional diagram of the middle applicator head;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 for Figure 2 Schematic diagram of the exploded view of the applicator head;

[0032] Figure 6 for Figure 2 Another schematic cross-sectional view of the middle applicator head, wherein the phototherapy plate is not shown;

[0033] Figure 7 for Figure 5 Schematic diagram of the structure of the middle support shell;

[0034] Figure 8 for Figure 5 Schematic diagram of the structure of the middle mounting frame;

[0035] Figure 9 for Figure 8 Schematic cross-section of the mounting bracket.

[0036] Description of Figure Numbers:

[0037]

[0038] DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] It should be noted that, in the description of the present invention, if the terms "first", "second", etc. appear, "first" and "second" are only used to facilitate the description of different components or names, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" appears in the full text, its meaning is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that meet both A and B.

[0041] Please refer to Figure 1 The embodiment of the present invention provides an applicator head 100, which is used to apply the liquid in the liquid supply container 200 to the user's skin surface. The liquid includes but is not limited to eye cream, face cream, essence and other skin care products. Of course, the liquid can also be a liquid that has a cleaning effect, such as facial cleanser.

[0042] Please refer to Figures 2 to 4 The smear head 100 includes a base 10, a main body 20 and a roller 28. The base 10 is provided with a connecting hole 11. The base 10 is used to connect with the liquid supply container 200 so that the connecting hole 11 is connected to the liquid supply container 200. The main body 20 is flat. The height direction of the main body 20 (such as Figure 2 The roller 28 is formed with a mounting groove 21 at one end thereof (in the Z direction) and is rotatably connected to the base 10 at the other end. The main body 20 is formed with a liquid supply channel 22. One end of the liquid supply channel 22 passes through the groove wall of the mounting groove 21, and the other end of the liquid supply channel 22 is connected to or staggered with the connecting hole 11 as the main body 20 rotates. Figure 2 A portion of the roller 28 is located in the mounting groove 21 and is rotatably connected to the main body 20. The rotation axis between the roller 28 and the main body 20 is along the length direction of the main body 20.

[0043] In the embodiment of the present invention, the main body 20 is flat, and thus has a length direction (such as Figure 2 X direction in the figure) and width direction (such as Figure 2 The Y direction in the figure) is larger in the length direction and smaller in the width direction, so it appears flat.

[0044] The applicator head 100 of the present invention is provided with a large and elongated roller 28. The axis of rotation of the roller 28 is along its own length, and the rotation radius is small, which makes it easier to change its rotation state, that is, the rotation is faster and more flexible, and the comfort during massage is better. At the same time, the roller 28 can also more easily bring the liquid out of the mounting groove 21 by utilizing its flexible rotation. Furthermore, the flat main body 20 is more compatible with the elongated roller 28 in terms of shape, which is conducive to the roller 28 making full use of the shape of the main body 20 for reasonable layout and achieving reasonable utilization of space. In addition, since the main body 20 is flat, it is convenient for the user to hold the main body 20 along the width direction, which is convenient for the user to hold and achieves the effect of saving effort, thereby rotating the main body 20 relative to the base 10 to achieve the connection or staggering of the liquid supply channel 22 and the connecting hole 11.

[0045] Furthermore, the main body 20 can achieve connection or staggering of the liquid supply channel 22 and the connecting hole 11 by rotating with the base 10. When in the connected position, the liquid in the liquid supply container 200 can pass through the connecting hole 11 and the liquid supply channel 22 in sequence to reach the mounting groove 21, and finally be rolled by the roller 28 and applied to the user's skin; when in the staggered position, the connecting hole 11 is blocked by the main body 20 and the liquid cannot be discharged. Even if the liquid supply container 200 is squeezed by external force, the liquid in the liquid supply container 200 cannot be squeezed out. Therefore, the liquid supply container 200 can be closed by rotating when there is no need to use it, preventing the liquid in the liquid supply container 200 from flowing out at will, thereby making it convenient to carry the application device with you. The connected position in this embodiment refers to the position where the liquid supply channel 22 and the connecting hole 11 are at the maximum connection area, and the staggered position refers to the position where the liquid supply channel 22 and the connecting hole 11 are completely staggered and do not overlap.

[0046] In this embodiment, the liquid supply channel 22 and the connecting hole 11 are both eccentrically positioned relative to the rotational axis between the base 10 and the main body 20, allowing them to be connected or offset with rotation. Between the connected and offset positions, the liquid supply channel 22 and the connecting hole 11 can be partially connected and partially offset, with the connected area at this position being between maximum and zero.

[0047] In some embodiments, the rotation axis between the base 10 and the main body 20 is along the height direction of the main body 20. Optionally, the rotation angle of the main body 20 relative to the base 10 from the connected position to the staggered position is 180°. Of course, in other embodiments, the rotation angle can also be 90° or other values.

[0048] Please refer to Figure 5 In some embodiments, the main body 20 includes a shell 23 and a support shell 24. The shell 23 is a hollow structure and one end thereof is through to form a notch 231 of the mounting groove 21. The support shell 24 is located in the shell 23 and together with the support shell 24 form the mounting groove 21. Please refer to the reference again. Figure 3 A limiting ridge 232 is provided on the inner wall of the housing 23 near the notch 231. The support housing 24 abuts against the side of the limiting ridge 232 facing away from the notch 231, thereby preventing the support housing 24 from separating from the housing 23 along the direction of the notch 231. In this embodiment, the inner wall of the housing 23 can be configured as a stepped surface, thereby forming multiple limiting ridges 232 to achieve multiple position limits.

[0049] Furthermore, a limiting rib 241 is provided on the end of the support shell 24 away from the notch 231, and a limiting groove 233 is also provided on the inner wall of the outer shell 23. The limiting rib 241 cooperates with the limiting groove 233. Taking the vertical direction as an example, during installation, the support shell 24 is inserted into the inner portion of the outer shell 23 from the bottom upward until the support shell 24 abuts the limiting rib 232 of the outer shell 23 and the limiting rib 241 engages with the limiting groove 233, thereby restricting the support shell 24 from moving in the vertical direction.

[0050] Of course, in other embodiments, in order to achieve the fixation between the support shell 24 and the outer shell 23, a snap-fit connection can be adopted, or screws can be used for locking.

[0051] Please refer to Figure 3 and Figure 7 Furthermore, the support housing 24 is provided with an annular groove 242. The annular groove 242 is arranged around the notch 231 and has a sealing ring 29 embedded therein. The support housing 24 is sealed to the inner wall of the housing 23 via the sealing ring 29, thereby preventing media such as water and dust from entering the interior of the housing 23 through the notch 231 of the mounting slot 21. The provision of the annular groove 242 effectively prevents the sealing ring 29 from moving in the vertical direction, ensuring the stability of the seal.

[0052] Please refer to Figure 5 and Figure 6 In some embodiments, the support shell 24 is a light-transmitting member, and a plurality of surrounding walls 243 are provided on the side of the support shell 24 away from the slot 231, and the plurality of surrounding walls 243 are spaced apart along the length direction of the main body 20. The applicator head 100 also includes a phototherapy lamp 30, which has a plurality of light-emitting elements 31. The plurality of light-emitting elements 31 are arranged in a one-to-one correspondence with the plurality of surrounding walls 243, and the light-emitting elements 31 are located in the space enclosed by the surrounding walls 243. Among them, the surrounding wall 243 is a light-shielding structure, or a circle of light-shielding members is provided on the inner side of the surrounding wall 243. When a circle of light-shielding members is provided on the inner side of the surrounding wall 243, the light-shielding members may be light-shielding cotton or a light-shielding coating, etc. By providing a light-shielding structure or a light-shielding member, the light-emitting element 31 can be enclosed inside, so that the light emitted by the light-emitting element 31 is concentrated and emitted from the support shell 24.

[0053] Please refer to Figure 5 and Figure 8In some embodiments, the main body 20 further includes a mounting bracket 25, a circuit board 26, and a battery (not shown). The mounting bracket 25 is located inside the outer shell 23 and is disposed between the support shell 24 and the base 10. The mounting bracket 25 includes a first mounting portion 251 and a second mounting portion 252. The first mounting portion 251 is a cavity structure open to the support shell 24. The circuit board 26 and the battery are fixed within the first mounting portion 251. Specifically, the first mounting portion 251 can be provided with a slot for inserting and fixing the circuit board 26 and the battery; alternatively, the first mounting portion 251 can be provided with a snap to limit the position of the circuit board 26 and the battery; alternatively, the battery can be adhered to the first mounting portion 251.

[0054] Please refer to Figure 6 The first mounting portion 251 contacts the inner wall of the housing 23. A guide groove 2513 is defined on the first mounting portion 251. The inner wall of the housing 23 is provided with a guide rib 234 that is inserted into the guide groove 2513. Both the guide groove 2513 and the guide rib 234 extend along the height of the main body 20. The side of the housing 23 facing away from the mounting groove 21 is open. During assembly, the mounting bracket 25 is inserted into the interior of the housing 23 through the open end, and the guide rib 234 slides into the guide groove 2513.

[0055] Furthermore, the main body 20 also includes a button 27, which is electrically connected to the circuit board 26, and the switch of the phototherapy lamp 30 is controlled by the button 27.

[0056] Please refer to it again Figure 4 and Figure 9 The second mounting portion 252 is disposed on the side of the first mounting portion 251 facing the base 10, and the second mounting portion 252 is annular in structure. The inner wall of the second mounting portion 252 is provided with a first stepped surface 2521, which faces away from the base 10. The base 10 has a connecting sleeve 12 that is plugged into the second mounting portion 252. The connecting sleeve 12 has a second stepped surface 13, which abuts against the first stepped surface 2521. The connecting sleeve 12 is used to connect to the liquid supply container 200. When the connecting sleeve 12 is inserted into the second mounting portion 252, the second stepped surface 13 abuts against the first stepped surface 2521, thereby preventing the connecting sleeve 12 from being separated from the second mounting portion 252, that is, the base 10 and the main body 20 are fixed. Through the plug-in connection and the stepped surface limiting method, not only the alignment and installation of the base 10 and the main body 20 are facilitated, but also the disassembly of the two is facilitated.

[0057] Furthermore, a receiving groove 2511 is defined on the side of the first mounting portion 251 facing the base 10. The second mounting portion 252 is disposed around the receiving groove 2511. A sealing gasket 50 is secured within the receiving groove 2511. The support housing 24 includes a liquid supply tube 244, which forms the liquid supply channel 22. The first mounting portion 251 includes a socket 2512 extending through the bottom of the receiving groove 2511. The end of the liquid supply tube 244 engages with the socket 2512 and seals against the sealing gasket 50. The sealing gasket 50 includes a communication hole 51 corresponding to the socket 2512. The end of the connecting sleeve 12 seals against the sealing gasket 50. In this embodiment, the sealing gasket 50 is held by both the first mounting portion 251 and the connecting sleeve 12. The sealing gasket 50 is also positioned by the receiving groove 2511, limiting radial movement of the sealing gasket 50.

[0058] The end of the connecting sleeve 12 can be a closed end and provided with a connecting hole 11 to connect with the connecting hole 51 on the sealing gasket 50; or, both ends of the connecting sleeve 12 are set to be through.

[0059] By providing the sealing gasket 50 , the connection sealing between the connecting hole 11 and the liquid supply channel 22 can be ensured to avoid liquid leakage.

[0060] In some embodiments, the liquid supply tube 244 is eccentrically disposed relative to the axis of rotation between the main body 20 and the base 10. The end of the liquid supply tube 244 that penetrates the wall of the mounting groove 21 is located in the middle of the length direction of the mounting groove 21 and is offset from the middle of the width direction of the mounting groove 21. In this embodiment, by arranging the outlet of the liquid supply tube 244 in the middle of the length direction of the mounting groove 21, the distance from the outlet to both ends is equal and relatively short, thereby ensuring that the liquid flowing out of the outlet reaches both ends of the mounting groove 21, covering a wider range. By arranging the outlet of the liquid supply tube 244 offset from the middle of the width direction of the mounting groove 21, the width dimension itself is smaller, so even if the outlet is offset, it is still possible to ensure that the liquid reaches both sides of the width direction.

[0061] Furthermore, the phototherapy lamp 30 also includes a lamp board 32, on which the light-emitting element 31 is disposed. The support housing 24 is provided with a buckle, which is engaged with the side of the lamp board 32 facing away from the notch 231. The open end of the first mounting portion 251 is also supported on the side of the lamp board 32 facing away from the notch 231. In this embodiment, the buckle and the first mounting portion 251 are equivalent to sharing support at the bottom of the lamp board 32, and the buckle clamps the lamp board 32 to limit its position and prevent it from moving.

[0062] Please refer to it again Figure 3 and Figure 5Furthermore, the lamp board 32 is provided with a sleeve hole 321, and the liquid supply pipe 244 is adapted to be plugged into the sleeve hole 321. In addition, the circumference of the liquid supply pipe 244 can also be provided with an anti-rotation rib, and the hole wall of the sleeve hole 321 is provided with an anti-rotation groove that fits with the anti-rotation rib.

[0063] Please refer to it again Figure 1 The embodiment of the present invention also provides a coating device, which includes a liquid supply container 200 and a coating head 100. The base 10 of the coating head 100 is connected to the liquid supply container 200. The specific structure of the coating head 100 can be found in the above embodiment and will not be repeated here.

[0064] The liquid supply container 200 has a liquid outlet, the outer periphery of which is provided with an external thread. The connecting sleeve 12 of the base 10 is provided with an internal thread and connected to the external thread. The liquid outlet is connected to the connecting hole 11. In other embodiments, the portion of the liquid supply container 200 having the liquid outlet can also be directly inserted into the connecting sleeve 12 for a tight fit.

[0065] Furthermore, the coating device further comprises a cover 60, which covers one end of the coating head 100 where the mounting slot 21 is provided, thereby preventing the roller 28 from being exposed. The cover 60 is snap-fitted or tightly fitted to the main body 20, making it easy to remove the cover 60.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A coating head, characterized in that: include: a base, the base being provided with a connecting hole, the base being used to connect to the liquid supply container so that the connecting hole is in communication with the liquid supply container; The main body is flat, with a mounting groove formed at one end in the height direction of the main body and the other end rotatably connected to the base. The main body is formed with a liquid supply channel, one end of which passes through the groove wall of the mounting groove, and the other end of which is connected to or staggered with the connecting hole as the main body rotates; as well as, The roller is in the shape of an elongated strip and is arranged along the length direction of the main body. A portion of the roller is located in the mounting groove and is rotatably connected to the main body. The rotation axis between the roller and the main body is along the length direction of the main body.

2. The coating head according to claim 1, wherein: The main body includes an outer shell and a supporting shell. The outer shell is hollow and one end of the outer shell is through to form a notch of the mounting slot. The supporting shell is located inside the outer shell and together with the supporting shell form the mounting slot. A limiting convex edge is provided on the inner wall of the shell near the notch, and the support shell abuts against a side of the limiting convex edge facing away from the notch.

3. The coating head according to claim 2, wherein: A limiting rib is provided at one end of the support shell away from the notch, and a limiting groove is further provided on the inner wall of the shell, and the limiting rib cooperates with the limiting groove.

4. The coating head according to claim 2, wherein: The support shell is provided with an annular groove, which is arranged around the notch and has a sealing ring embedded in the annular groove. The support shell is sealed and connected to the inner wall of the outer shell through the sealing ring.

5. The coating head according to claim 2, wherein: The supporting shell is a light-transmitting member, and a plurality of surrounding walls are provided on a side of the supporting shell away from the notch, and the plurality of surrounding walls are spaced apart along the length direction of the main body; The applicator head further includes a phototherapy lamp having a plurality of light-emitting elements, the plurality of light-emitting elements being arranged in a one-to-one correspondence with the plurality of surrounding walls, and the light-emitting elements being located within a space enclosed by the surrounding walls; The surrounding wall is a light-shielding structure, or a circle of light-shielding elements is provided on the inner side of the surrounding wall.

6. The coating head according to any one of claims 2 to 5, characterized in that: The main body also includes a mounting bracket, a circuit board and a battery. The mounting bracket is located inside the outer shell and is arranged between the support shell and the base. The mounting bracket includes a first mounting part and a second mounting part. The first mounting part is a cavity structure open to the support shell, and the circuit board and the battery are fixed in the first mounting part; the second mounting part is arranged on the side of the first mounting part facing the base, and the second mounting part is an annular structure. The inner wall of the second mounting part is provided with a first step surface, and the first step surface is away from the base. The base has a connecting sleeve that is plugged into the second mounting part, and the connecting sleeve has a second step surface, which abuts against the first step surface. The connecting sleeve is used for connecting the liquid supply container.

7. The coating head according to claim 6, wherein: A receiving groove is provided on a side of the first mounting portion facing the base, the first mounting portion is provided with an insertion hole penetrating the bottom of the receiving groove, the second mounting portion is arranged around the receiving groove, and a sealing gasket is fixed in the receiving groove; The supporting shell has a liquid supply pipe, the liquid supply pipe forms the liquid supply channel, the end of the liquid supply pipe is plugged into the insertion hole and is in sealing contact with the sealing gasket, and the sealing gasket is provided with a communication hole corresponding to the insertion hole; The end portion of the connecting sleeve is in sealing contact with the sealing gasket.

8. The coating head according to claim 7, wherein: The liquid supply pipe is eccentrically arranged relative to the rotation axis between the main body and the base, and one end of the liquid supply pipe that passes through the groove wall of the installation groove is located in the middle of the length direction of the installation groove and is arranged away from the middle of the width direction of the installation groove.

9. The coating head according to claim 6, wherein: The applicator head also includes a phototherapy lamp, which has a lamp board. The supporting shell is provided with a buckle, which is clamped on the side of the lamp board away from the slot. The open end of the first mounting portion is also supported on the side of the lamp board away from the slot.

10. A coating device, characterized in that: include: liquid supply container; And the coating head according to any one of claims 1 to 9, wherein the base of the coating head is connected to the liquid supply container.

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