Miniature roller pin

Abstract

The utility model discloses a miniature roller pin which comprises a handle, one end of the handle is fixedly connected with a roller carrier, two sides of the roller carrier are respectively and rotatably connected with a plug screw in a sleeved mode, the opposite ends of the plug screws are respectively connected with a fixing cover through a thread structure, and the fixing covers are in interference connection with two ends of a roller. The rolling wheel is rotationally arranged in the rolling wheel frame, a plurality of clamping strips are clamped on the peripheral side of the outer wall of the rolling wheel in a sliding mode, a plurality of rolling needles are fixedly connected to one end face of each clamping strip, a positioning groove is formed in the middle of the other end face of each clamping strip in an inward concave mode, and a limiting assembly is clamped in each positioning groove and arranged on the corresponding rolling wheel. The rolling wheel can be integrally taken down by taking down the plug screw, and the fixing covers in interference connection with the two ends of the rolling wheel are taken out respectively, so that the clamping strips can be taken down respectively, the rolling needle can be replaced conveniently, and the requirements of different lengths are met.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a micro needle roller. Background Art

[0002] In cosmetic and medical treatments, the two most common skin treatments are injections and dermarolling. Facial dermarolling, when used to remove the thick stratum corneum, involves using a dermaroller to create tiny incisions on the face, allowing medication or other cosmetic liquids to penetrate beneath the skin.

[0003] For example, the Chinese patent publication number CN204521988U discloses a new type of skin roller needle, which belongs to the field of medical devices and includes a roller, a skin-breaking needle and a handle, wherein a rotating shaft is provided inside the roller, both ends of the rotating shaft are fixedly connected to the handle, an extrusion block is fixedly provided at the bottom of the rotating shaft, a liquid medicine layer is provided on the inner wall of the roller, the skin-breaking needle is a hollow structure, a liquid medicine hole is provided on the skin-breaking needle, a cover is provided outside the roller, a number of disinfection lamps are provided inside the cover, and the cover is fixedly connected to the handle.

[0004] The needle roller has the problem that the length of the needle body cannot be adjusted or replaced and the scope of application is small. Therefore, we propose a micro needle roller to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a micro needle roller to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro needle roller, comprising a handle, one end of the handle is fixedly connected to a roller frame, both sides of the roller frame are rotated and sleeved with plug screws, the opposite ends of the plug screws are respectively connected to fixed covers through threaded structures, the fixed covers are interference-connected to the two ends of the roller, the roller is rotatably arranged in the roller frame, a plurality of snap-in strips are slidably engaged with the outer wall circumference of the roller, a plurality of needle rollers are fixedly connected to one end face of the snap-in strip, a positioning groove is concave in the middle part of the other end face of the snap-in strip, a limiting component is engaged in the positioning groove, and the limiting component is arranged on the roller.

[0007] Preferably, a groove is provided on one side of the handle close to the roller frame, and a plurality of anti-slip protrusions are fixedly connected in the groove.

[0008] Preferably, a plurality of anti-slip bumps 2 are fixedly connected to one side of the middle portion of the handle.

[0009] Preferably, the arc-shaped outer wall of the roller is provided with a plurality of plug-in grooves, the plug-in grooves are dovetail groove structures, and the plug-in grooves are evenly distributed around the circumference.

[0010] Preferably, the limiting assembly includes a movable groove, a spring, a movable slider, and a cylindrical block. The movable groove is opened on the roller and is located in the plug-in groove. The movable slider is slidably sleeved in the movable groove. One end of the movable slider is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to the inner wall of the movable groove. The other end of the movable slider is fixedly connected to the cylindrical block, and the cylindrical block is engaged with the positioning groove.

[0011] Compared with the prior art, the beneficial effect of the present invention is that the roller can be removed as a whole by removing the plug screw, and the fixing covers with interference fit at both ends of the roller can be removed separately, and the connecting strips can be removed separately, thereby facilitating the replacement of the roller needle to meet the requirements of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0015] Figure 4 This is a schematic diagram of the cross-sectional structure of the roller of the utility model.

[0016] In the figure: handle 1, groove 11, anti-slip bump 1 12, anti-slip bump 2 13, roller frame 2, plug screw 3, fixing cover 4, clamping strip 5, positioning groove 51, needle roller 6, roller 7, plug slot 71, limit assembly 8, movable groove 81, spring 82, movable slider 83, cylindrical clamping block 84. DETAILED DESCRIPTION

[0017] 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.

[0018] Reference Figure 1 、 2, which is the first embodiment of the utility model, provides a micro needle roller, including a handle 1, one end of the handle 1 is fixedly connected to the roller frame 2, and the two sides of the roller frame 2 are respectively rotatably sleeved with plug screws 3, and the opposite ends of the plug screws 3 are respectively connected to the fixing covers 4 through threaded structures, and the fixing covers 4 are interference-connected to the two ends of the roller 7. The roller 7 is rotatably arranged in the roller frame 2, and a plurality of clamping strips 5 are slidably clamped on the outer wall side of the roller 7. A plurality of roller needles 6 are fixedly connected to one end surface of the clamping strip 5, and a positioning groove 51 is concave in the middle of the other end surface of the clamping strip 5, and a limiting component 8 is clamped in the positioning groove 51, and the limiting component 8 is arranged on the roller 7.

[0019] Holding the handle 1, the needle roller 6 is used to treat some small areas such as the turning point of the nose, the area around the eyes, the upper eyelids, and the philtrum. When the needle roller 6 needs to be replaced, the plug screw 3 is turned to disengage the plug screw 3 from the fixing cover 4. At this time, the roller 7 falls off from the roller frame 2 as a whole, and then the fixing covers 4 with interference fit at both ends of the roller 7 are removed. The snap-on strip 5 can be taken out from the roller 7, which is convenient for replacing the needle roller 6 and convenient for adapting to needle rollers 6 of different length requirements.

[0020] Reference Figure 1-4 This is the second embodiment of the present utility model, which is based on the previous embodiment. Specifically, a groove 11 is provided on the side of the handle 1 close to the roller frame 2, and a plurality of anti-slip protrusions 12 are fixedly connected in the groove 11. The setting of the groove 11 is convenient for the placement of the user's fingers, and the setting of the anti-slip protrusions 12 improves the anti-slip performance during use.

[0021] Specifically, a plurality of anti-skid protrusions 13 are fixedly connected to one side of the middle portion of the handle 1. The provision of the anti-skid protrusions 13 further improves the anti-skid performance during use.

[0022] Specifically, a plurality of inserting grooves 71 are formed on the arc-shaped outer wall of the roller 7 . The inserting grooves 71 are dovetail groove structures and are evenly distributed around the circumference.

[0023] Specifically, the limiting assembly 8 includes a movable groove 81, a spring 82, a movable slider 83, and a cylindrical block 84. The movable groove 81 is opened on the roller 7 and is located in the plug-in groove 71. The movable slider 83 is slidably sleeved in the movable groove 81. One end of the movable slider 83 is fixedly connected to one end of the spring 82, and the other end of the spring 82 is fixedly connected to the inner wall of the movable groove 81. The other end of the movable slider 83 is fixedly connected to the cylindrical block 84, and the cylindrical block 84 is engaged with the positioning groove 51.

[0024] When the needle roller 6 is installed, the snap-in strip 5 is inserted into the plug-in slot 71, and the cylindrical block 84 of the limit assembly 8 is snapped into the positioning slot 51, thereby preventing the snap-in strip 5 from falling off, while keeping the position of the snap-in strip 5 fixed, so that the position of each snap-in strip 5 is uniform, and then the fixing covers 4 are respectively clamped on both ends of the roller 7. The fixing covers 4 are interference-connected and sleeved on both ends of the roller 7, and then the roller 7 is placed in the roller frame 2. The plug screw 3 is re-installed to fix the fixing cover 4 and it can be used again.

[0025] Reference Figure 1-4 , which is the third embodiment of the present utility model. This embodiment is based on the above two embodiments. When in use, hold the handle 1 and the needle roller 6 to treat the nose bend, eye area, upper eyelid, and some small areas of the philtrum. When the needle roller 6 needs to be replaced, turn the plug screw 3 to disengage the plug screw 3 from the fixing cover 4. At this time, the roller 7 falls off from the roller frame 2 as a whole, and then remove the fixing cover 4 with interference fit at both ends of the roller 7. The clamping strip 5 can be taken out from the plug slot 71, which is convenient for replacing the needle roller 6. It is suitable for needle rollers 6 with different length requirements. When the needle roller 6 is installed, the snap-in strip 5 is inserted into the plug-in slot 71, and the cylindrical block 84 of the limit assembly 8 is snapped into the positioning slot 51, thereby preventing the snap-in strip 5 from falling off, while keeping the position of the snap-in strip 5 fixed, so that the position of each snap-in strip 5 is uniform, and then the fixing covers 4 are respectively clamped on both ends of the roller 7. The fixing covers 4 are interference-connected and sleeved on both ends of the roller 7, and then the roller 7 is placed in the roller frame 2, and the plug screws 3 are re-installed to fix the fixing cover 4 and it can be used again.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro needle roller, comprising a handle (1), characterized in that: One end of the handle (1) is fixedly connected to the roller frame (2), and the two sides of the roller frame (2) are respectively rotatably sleeved with plug screws (3), and the opposite ends of the plug screws (3) are respectively connected to the fixed covers (4) through threaded structures, and the fixed covers (4) are interference-connected to the two ends of the roller (7). The roller (7) is rotatably arranged in the roller frame (2), and a plurality of clamping strips (5) are slidably clamped on the peripheral side of the outer wall of the roller (7). A plurality of roller needles (6) are fixedly connected to one end surface of the clamping strip (5), and a positioning groove (51) is concavely provided in the middle of the other end surface of the clamping strip (5), and a limiting component (8) is clamped in the positioning groove (51), and the limiting component (8) is arranged on the roller (7).

2. A micro needle roller according to claim 1, characterized in that: A groove (11) is provided on one side of the handle (1) close to the roller frame (2), and a plurality of anti-slip protrusions (12) are fixedly connected in the groove (11).

3. The micro needle roller according to claim 1, characterized in that: A plurality of anti-slip protrusions (13) are fixedly connected to one side of the middle portion of the handle (1).

4. The micro needle roller according to claim 1, characterized in that: The arc-shaped outer wall of the roller (7) is provided with a plurality of plug-in slots (71), the plug-in slots (71) being dovetail slot structures, and the plug-in slots (71) are evenly distributed around the circumference.

5. The micro needle roller according to claim 4, characterized in that: The limiting assembly (8) includes a movable groove (81), a spring (82), a movable slider (83), and a columnar block (84). The movable groove (81) is provided on the roller (7) and is located in the plug-in groove (71). The movable slider (83) is slidably sleeved in the movable groove (81). One end of the movable slider (83) is fixedly connected to one end of the spring (82), and the other end of the spring (82) is fixedly connected to the inner wall of the movable groove (81). The other end of the movable slider (83) is fixedly connected to the columnar block (84), and the columnar block (84) is engaged with the positioning groove (51).

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