Skin roller pin

Abstract

The utility model discloses a skin roller pin which comprises a handle, a support and a roller assembly, the roller assembly is rotatably connected with the support, and the handle and the support are detachably connected through a connecting structure. The connecting structure comprises an inserting block, the inserting block is arranged at the end, close to the support, of the handle, a fixing groove is formed in the inserting block from bottom to top, the fixing groove comprises a first inserting face and a second inserting face which are sequentially arranged in the first direction, and the first inserting face is close to the handle and inclines upwards from the position close to the handle to the position away from the handle; the inclination directions of the second plugging surface and the first plugging surface are opposite. The inserting groove is formed in the support and allows the inserting block to be inserted, an elastic piece is arranged in the inserting groove, and the elastic piece comprises an inserting part which is matched with the fixing groove and can be inserted into the fixing groove. The handle and the support are of a split structure, the adopted connecting structure is convenient to operate, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of cosmetic medical equipment, in particular to a skin rolling needle. Background Art

[0002] Most current skin care products are applied directly to the skin surface, and a small number of products are injected directly into the dermis. Due to the effect of the skin barrier, direct application will result in low absorption and utilization. Although the injection method (water light needle) has improved absorption efficiency, it also greatly increases risks and pain. Therefore, skin rollers came into being. Skin rollers can not only improve the absorption efficiency of skin care products, but are also safer than injections, and have received widespread attention from researchers. When the skin's stratum corneum is thick and the dead skin needs to be removed, a skin roller is used to create tiny wounds on the face, so that drugs or other cosmetic liquids can penetrate under the skin.

[0003] The skin roller usually includes a handle and a roller mechanism. The roller mechanism includes a roller that contacts the skin, and the handle is convenient for the operator to hold. The handle and the roller mechanism are usually an integrated structure, but the roller mechanism needs to be replaced because it contacts the skin. This integrated structure causes the entire skin roller to be replaced simultaneously, causing waste. Even if some handles and roller mechanisms adopt a split structure, the split structure is often more complicated and requires two-handed operation, which brings inconvenience to replacement. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the purpose of the utility model is to provide a skin roller, in which the handle and the bracket are separate structures, and the connection structure adopted is easy to operate and has a simple structure.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a skin roller needle, including a handle, a bracket and a roller assembly, the roller assembly is rotatably connected to the bracket, the handle and the bracket are detachably connected through a connecting structure, and the connecting structure includes:

[0006] A plug-in block, the plug-in block is arranged at the end of the handle close to the bracket, the plug-in block is provided with a fixing groove from bottom to top, the fixing groove comprises a first plug-in surface and a second plug-in surface arranged in sequence along a first direction, the first plug-in surface is close to the handle and is inclined upward from close to the handle to away from the handle, and the second plug-in surface is inclined in the opposite direction to the first plug-in surface;

[0007] A slot is provided on the bracket and is for inserting the plug-in block. A spring piece is arranged in the slot. The spring piece includes a plug-in portion that matches the fixing slot and can be inserted into the fixing slot.

[0008] The beneficial effects of the utility model are:

[0009] 1. Through the detachable connection between the handle and the bracket, the handle is easy to disassemble, and only the bracket and the roller assembly need to be replaced, which saves costs. Different roller assemblies can also be replaced on one handle as needed to meet different beauty needs.

[0010] Second, the handle is inserted into or removed from the slot along a first direction, and a fixing slot having a first plug-in surface and a second plug-in surface is provided on the handle, and the spring piece has a spring piece matching the fixing slot. When the plug-in block is inserted into the slot, the spring piece is pushed downward until the spring piece is stuck in the fixing slot. When the plug-in block is removed from the slot, the spring piece is pushed downward by the inclined second plug-in surface, and the spring piece is separated from the fixing slot. The structure of the fixing slot having two inclined surfaces and the plug-in portion can realize the rapid disassembly of the handle and the bracket, and the disassembly can be completed by pushing and pulling the handle with one hand without pressing.

[0011] Furthermore, the plug-in block includes a guide portion and a fixing portion arranged in an upper and lower direction, the length of the guide portion in the second direction is greater than the length of the fixing portion in the second direction, and the fixing groove is provided on the fixing portion. The cross section of the plug-in block along the second direction is a T-shaped structure, and the guide portion cooperates with the guide groove to play a guiding role in the process of inserting the plug-in block into the slot. At the same time, this T-shaped structure is more stable in plugging and can also be limited in the upper and lower directions.

[0012] Furthermore, the end of the plug-in block away from the handle has an upper bevel and a lower bevel, the upper bevel and the lower bevel are arranged up and down and in opposite directions, and the upper bevel slopes downward from the side close to the handle to the side away from the handle. The plug-in block forms a constricted structure at the end away from the handle, and the constricted structure has a small area, which is convenient for insertion into the slot.

[0013] Furthermore, the fixing groove also has a third plugging surface extending along the first direction, and the third plugging surface is located above the first plugging surface and the second plugging surface, and is connected to the first plugging surface and the second plugging surface. A cross section of the fixing groove along the second direction is a trapezoidal structure, and the fixing groove and the plugging part of this structure are more stable when plugged in.

[0014] Furthermore, the spring sheet is a metal sheet, and the spring sheet further includes a sheet-shaped connecting portion, the connecting portion and the bracket are injection molded, and the plug-in portion extends upward along the connecting portion and extends into the slot. The spring sheet made of metal material can use its own elastic deformation and reset.

[0015] Further, the plug-in portion includes a first inclined piece and a second inclined piece, the lower ends of the first inclined piece and the second inclined piece are fixed to the connecting portion, the first inclined piece has the same inclination direction and inclination angle as the first plug-in surface, and can be fitted with the first plug-in surface, and the second inclined piece has the same inclination direction and inclination angle as the second inclined surface, and can be fitted with the second plug-in surface.

[0016] Furthermore, the slot includes a guide slot and a connecting slot which are connected to each other, the guide portion is inserted into the guide slot, and the fixing portion is inserted into the connecting slot.

[0017] Furthermore, the bracket includes a connecting handle and two fixing rods relatively connected to one end of the connecting handle, the roller is detachably connected between the two fixing rods and can rotate relative to the fixing rods, and the slot is opened at the end of the connecting handle away from the fixing rods.

[0018] Furthermore, the roller assembly includes a plurality of wheels and a plurality of washers, a washer is provided between two adjacent wheels, and a plurality of micro needles are evenly arranged on the circumference of the outer surface of the wheel.

[0019] Furthermore, the drum assembly further comprises a protective sleeve which is sleeved on the outside of the drum and is used to protect the drum assembly to avoid damage to the drum assembly when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic diagram of the structure of the handle in the embodiment of the utility model;

[0023] Figure 4 A side view of a bracket in an embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the spring piece in the embodiment of the utility model.

[0025] In the figure:

[0026] 1. Handle; 2. Bracket; 3. Roller assembly; 4. Plug-in block; 4a. Upper inclined surface; 4b. Lower inclined surface; 41. Guide portion; 42. Fixing portion; 421. Fixing groove; 4211. First plug-in surface; 4212. Second plug-in surface; 4213. Third plug-in surface; 5. Slot; 51. Guide groove; 52. Connecting groove; 6. Spring piece; 61. Connecting portion; 62. Plug-in portion; 621. First inclined piece; 622. Second inclined piece; 623. Connecting piece. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0028] See attached Figure 1 As shown, a skin roller needle of the utility model comprises a handle 1, a bracket 2 and a roller assembly 3, wherein the roller assembly 3 is rotatably connected to the bracket 2, and the handle 1 and the bracket 2 are detachably connected via a connecting structure. In this embodiment, the handle 1 is easily disassembled through the detachable connection between the handle 1 and the bracket 2, and only the bracket 2 and the roller assembly 3 need to be replaced, which saves costs. Different roller assemblies 3 can also be replaced on one handle 1 as needed to meet different beauty needs.

[0029] See attached Figure 2 As shown, the connection structure includes a pluggable plug-in block 4 and a slot 5. The plug-in block 4 is arranged at the end of the handle 1 close to the bracket 2. The plug-in block 4 is provided with a fixing slot 421 from bottom to top. The fixing slot 421 includes a first plug-in surface 4211 and a second plug-in surface 4212 arranged in sequence along a first direction (X direction). The first plug-in surface 4211 is close to the handle 1 and tilts upward from close to the handle 1 to away from the handle 1. The second plug-in surface 4212 is tilted in the opposite direction to the first plug-in surface 4211. The slot 5 is provided on the bracket 2 and is for the plug-in block 4 to be inserted. A spring piece 6 is provided in the slot 5. The spring piece 6 includes a plug-in portion 62 that matches the fixing slot 421 and can be inserted into the fixing slot 421.

[0030] In this embodiment, the handle 1 is inserted into or removed from the slot 5 along the X direction, and a fixing slot 421 having a first plug-in surface 4211 and a second plug-in surface 4212 is provided on the handle 1, and the spring piece 6 has a spring piece 6 that matches the fixing slot 421. When the plug-in block 4 is inserted into the slot 5, the spring piece 6 is pushed downward until the spring piece 6 is stuck in the fixing slot 421. When the plug-in block 4 is removed from the slot 5, the spring piece 6 is pushed downward by the inclined second plug-in surface 4212, and the spring piece 6 is separated from the fixing slot 421. The structure of the fixing slot 421 having two inclined surfaces and the plug-in portion 62 can realize the rapid disassembly of the handle 1 and the bracket 2, and the disassembly can be completed by pushing and pulling the handle 1 with one hand without pressing.

[0031] In one embodiment, the cross section of the fixing groove 421 along a cross section in the X direction is a V-shaped structure, the first plug-in surface and the second plug-in surface have the same inclination angle, and the plug-in portion 62 is also a V-shaped structure. The plug-in portion 62 includes a first inclined piece 621 and a second inclined piece 622, the lower ends of the first inclined piece 621 and the second inclined piece 622 are fixed to the connecting portion 61, the first inclined piece 621 has the same inclination direction and inclination angle as the first plug-in surface 4211, and can fit with the first plug-in surface 4211. The second inclined piece 622 has the same inclination direction and inclination angle as the second inclined surface, and can fit with the second plug-in surface 4212. The upper ends of the first inclined piece 621 and the second inclined piece 622 can swing up and down, detach from or get stuck in the fixing groove 421, and use the inclined surface to push the plug-in portion 62 up and down.

[0032] In another embodiment, see the attached Figure 2 , Attachment Figure 3 As shown, the cross section of the fixing groove 421 along the X direction is a trapezoidal structure, and the fixing groove 421 also has a third plugging surface 4213 extending along the first direction, and the third plugging surface 4213 is located above the first plugging surface 4211 and the second plugging surface 4212, and is connected to the first plugging surface 4211 and the second plugging surface 4212. Figure 5 As shown, the plug-in portion 62 is also a trapezoidal structure, and the plug-in portion 62 further includes a horizontal connecting piece 623, which connects the upper ends of the first inclined piece 621 and the second inclined piece 622. The fixing groove 421 and the plug-in portion 62 of this structure are more stable when plugged in.

[0033] See attached Figure 3 As shown, the plug-in block 4 includes a guide portion 41 and a fixing portion 42 arranged in an upper and lower direction. The length of the guide portion 41 in the second direction (Y direction) is greater than the length of the fixing portion 42 in the second direction. The fixing groove 421 is provided on the fixing portion 42. At this time, the cross section of the plug-in block 4 along the Y direction is a T-shaped structure. Figure 4 As shown, the slot 5 includes a guide groove 51 and a connecting groove 52 that are connected to each other, the guide portion 41 is inserted into the guide groove 51, the fixing portion 42 is inserted into the connecting groove 52, and the spring piece 6 is fixed in the connecting groove 52. That is, the slot 5 is a T-shaped structure with the same structure as the plug-in block 4. The guide portion 41 cooperates with the guide groove 51 to play a guiding role in the process of inserting the plug-in block 4 into the slot 5. At the same time, this T-shaped structure is more stable in plugging and can also be limited in the up and down directions.

[0034] See attached Figure 3 As shown, the end of the plug block 4 away from the handle 1 has an upper inclined surface 4a and a lower inclined surface 4b, the upper inclined surface 4a and the lower inclined surface 4b are arranged up and down and have opposite inclined directions, and the upper inclined surface 4a is inclined downward from the side close to the handle 1 to the side away from the handle 1. At this time, the plug block 4 forms a shrinkage structure at the end away from the handle 1, and the shrinkage structure has a small area, which is convenient for inserting into the slot 5.

[0035] In one embodiment, the bracket 2 is generally an injection molded part, and the spring 6 is a metal sheet. Figure 5 As shown, the spring piece 6 also includes a sheet-shaped connecting portion 61, which is injection molded with the bracket 2, and the plug-in portion 62 extends upward along the connecting portion 61 and extends into the slot 5. When the spring piece 6 is injection molded on the bracket 2, it is fixed to the bracket 2, and the connection is more stable.

[0036] In one embodiment, see the attached Figure 4As shown, the bracket 2 is provided with a slot body that is in communication with the connecting slot 52, the slot body is located below the connecting slot 52, and the connecting portion 61 of the spring piece 6 is inserted into the slot body. The connecting portion 61 is inserted into the slot body by interference fit, so that the spring piece 6 and the bracket 2 are fixed.

[0037] The bracket 2 includes a connecting handle and two fixing rods relatively connected to one end of the connecting handle. The bracket 2 is a Y-shaped structure. The roller is detachably connected between the two fixing rods and can rotate relative to the fixing rods. The slot 5 is opened at the end of the connecting handle away from the fixing rods.

[0038] The roller assembly 3 and the bracket 2 are detachably connected, a fixed shaft is fixed on the opposite surface of the fixed rod, and a rotation groove for inserting the fixed shaft is opened on the roller assembly 3. After the fixed shaft is inserted into the rotation groove, the roller assembly 3 can rotate relative to the bracket 2.

[0039] The roller assembly 3 includes a plurality of wheels and a plurality of washers, a washer is provided between two adjacent wheels, and a plurality of micro needles are evenly arranged on the outer circumference of the wheel. The micro needles can penetrate into the skin and puncture the skin. The roller assembly 3 can be selected according to actual needs, and a roller assembly 3 with different micro magnetic needle lengths can be selected.

[0040] In one embodiment, the skin roller further comprises a protective sleeve (not shown in the figure), which is sleeved on the outside of the roller assembly 3. The protective sleeve is used to protect the roller assembly 3 to avoid damage to the roller assembly 3 when not in use.

[0041] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A skin roller, comprising a handle, a bracket and a roller assembly, wherein the roller assembly is rotatably connected to the bracket, characterized in that: The handle and the bracket are detachably connected via a connecting structure, and the connecting structure comprises: A plug-in block, the plug-in block is arranged at the end of the handle close to the bracket, the plug-in block is provided with a fixing groove from bottom to top, the fixing groove comprises a first plug-in surface and a second plug-in surface arranged in sequence along a first direction, the first plug-in surface is close to the handle and is inclined upward from close to the handle to away from the handle, and the second plug-in surface is inclined in the opposite direction to the first plug-in surface; A slot is provided on the bracket and is for inserting the plug-in block. A spring piece is arranged in the slot. The spring piece includes a plug-in portion that matches the fixing slot and can be inserted into the fixing slot.

2. The skin roller according to claim 1, characterized in that: The plug-in block comprises a guide portion and a fixing portion which are arranged in a vertical direction. The length of the guide portion in the second direction is greater than the length of the fixing portion in the second direction. The fixing groove is provided on the fixing portion.

3. The skin roller according to claim 1, characterized in that: The end of the plug-in block away from the handle has an upper slope and a lower slope, the upper slope and the lower slope are arranged up and down and have opposite inclination directions, and the upper slope slopes downward from the side close to the handle to the side away from the handle.

4. The skin roller according to claim 1, characterized in that: The fixing groove also has a third plugging surface extending along the first direction, and the third plugging surface is located above the first plugging surface and the second plugging surface, and is connected to the first plugging surface and the second plugging surface.

5. The skin roller according to claim 1, characterized in that: The spring sheet is a metal sheet, and further comprises a sheet-shaped connecting portion, the connecting portion and the bracket are injection molded, and the plug-in portion extends upward along the connecting portion and extends into the slot.

6. The skin roller according to claim 5, characterized in that: The plug-in portion includes a first inclined piece and a second inclined piece, the lower ends of the first inclined piece and the second inclined piece are fixed to the connecting portion, the first inclined piece has the same inclination direction and inclination angle as the first plug-in surface, and can be fitted with the first plug-in surface, and the second inclined piece has the same inclination direction and inclination angle as the second inclined surface, and can be fitted with the second plug-in surface.

7. The skin roller according to claim 2, characterized in that: The slot comprises a guide slot and a connecting slot which are connected to each other, the guide portion is inserted into the guide slot, the fixing portion is inserted into the connecting slot, and the inserting portion extends into the connecting slot.

8. The skin roller according to any one of claims 1 to 7, characterized in that: The bracket comprises a connecting handle and two fixing rods relatively connected to one end of the connecting handle, the roller is detachably connected between the two fixing rods and can rotate relative to the fixing rods, and the slot is arranged at the end of the connecting handle away from the fixing rods.

9. The skin roller according to claim 8, characterized in that: The roller assembly comprises a plurality of wheels and a plurality of washers, a washer is arranged between two adjacent wheels, and a plurality of micro needles are evenly arranged on the circumference of the outer surface of the wheel.

10. The skin roller according to claim 1, characterized in that: The utility model also comprises a protective cover which is sleeved on the outside of the drum.

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