Retractable skin needling prevention rolling needle

Abstract

The utility model belongs to the technical field of skin roller needles, and particularly relates to a retraction type anti-acupuncture skin roller needle which comprises a U-shaped support and a roller rotationally arranged on the U-shaped support through a mandrel, a plurality of microneedles are distributed in the circumferential direction of the roller, the roller is arranged on the mandrel in a sleeving mode, and the roller and the mandrel can axially and relatively move. The roller is provided with a plurality of radially through mounting holes, the microneedles are located in the mounting holes, contraction elastic pieces capable of enabling the microneedles to retract into the roller are arranged in the mounting holes, the tip parts of the microneedles protrude out of the circumferential surface of the roller, and the root parts of the microneedles abut against the mandrel under the action of the contraction elastic pieces; a micro-needle accommodating part is arranged on the mandrel, the roller and the mandrel axially move relative to each other, and after the micro-needle accommodating part moves to the position of the root part of the micro-needle, the root part of the micro-needle falls into the micro-needle accommodating part and the tip part of the micro-needle retracts into the roller under the action of the contraction elastic piece. After the skin needle roller is used, accidental injuries such as scratches and stabbing caused by the fact that the microneedle is exposed outside are effectively avoided, and product safety is improved.

Description

Technical Field

[0001] The utility model relates to a retractable anti-needle puncture skin rolling needle, belonging to the technical field of skin rolling needle. Background Art

[0002] As a beauty tool (usually a disposable device), the skin roller has been widely used in the field of beauty care. Its core design lies in the densely arranged microneedles on the roller, which penetrate the surface of the skin by gently rolling to promote the absorption of skin care products, stimulate collagen production, improve skin texture, and reduce fine lines and scars.

[0003] However, it is these tiny and sharp needle tips that pose a potential safety hazard if not handled properly after use. Especially when the product cap accidentally falls off or is not covered in time, the exposed microneedles can easily cause accidental injuries to users or others, such as scratches and stings.

[0004] In view of this, the market is in urgent need of a safer and more convenient skin rolling needle design to fundamentally solve the problem of microneedle exposure after use. Utility Model Content

[0005] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a retractable anti-needle puncture skin roller, so that after use, the user only needs to press the core shaft to cause the microneedles on the roller to retract back into the roller, greatly reducing the risk of accidental punctures.

[0006] The retractable anti-acupuncture skin roller needle described in the utility model comprises a U-shaped bracket and a roller arranged on the U-shaped bracket by rotating a core shaft, a plurality of microneedles are arranged circumferentially of the roller, the roller sleeve is arranged on the core shaft, and the roller and the core shaft can undergo axial relative movement; a plurality of radially through mounting holes are provided on the roller, the microneedles are located in the mounting holes, a contraction elastic member that can retract the microneedles into the roller is provided in the mounting holes, the microneedle tips protrude from the circumferential surface of the roller, and the microneedle roots abut against the core shaft under the action of the contraction elastic member; a microneedle receiving portion is provided on the core shaft, the roller and the core shaft undergo axial relative movement, and after the microneedle receiving portion is moved to the position where the microneedle roots are located, the microneedle roots will fall into the microneedle receiving portion under the action of the contraction elastic member, and the microneedle tips will retract into the roller.

[0007] Among them, a transverse limiting elastic part is provided between the roller and the core shaft to prevent axial relative movement, which can prevent the microneedle retraction mechanism from being accidentally triggered before or during the use of the skin roller.

[0008] Preferably, one end of the core shaft protrudes from the U-shaped bracket, and pressing the end of the core shaft can cause the core shaft to move axially.

[0009] Furthermore, the core shaft is provided with a transverse limit baffle which can limit the movement of the core shaft in the opposite direction of the pressing.

[0010] Preferably, the lateral displacement limiting elastic member and the contraction elastic member are both compression springs.

[0011] The surface of the mandrel described in the utility model is provided with a plurality of slide grooves arranged along its axial direction, and the roots of the microneedles abut against the slide grooves on the surface of the mandrel; the microneedle receiving portion is a needle collection hole, and the needle collection hole is arranged in the slide grooves. The setting of the slide grooves can make the mandrel and the roller rotate synchronously, and after the roller and the mandrel move axially relative to each other, it can ensure that the roots of the microneedles can fall into the needle collection hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Significantly improve safety: By designing a retractable anti-needle puncture mechanism, after completing the use of the skin roller, you only need to simply press the core shaft to make the microneedles on the roller quickly and completely retract into the roller, effectively avoiding accidental injuries such as scratches and pricking caused by exposed microneedles, greatly improving the safety of the product.

[0014] 2. Easy to operate: The design of the utility model simplifies the microneedle contraction operation into a single action of pressing the core shaft, without the need for complicated operating steps or additional tools, so that users can quickly and easily complete the contraction of the microneedles after use, thereby improving the convenience and user-friendliness of the product.

[0015] 3. Stable and reliable structure: The introduction of the lateral limit elastic part ensures the stability and reliability of the microneedle retraction mechanism and avoids false triggering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 yes Figure 2 A magnified view of the middle roller area;

[0019] Figure 4 This is a schematic diagram of the structure after the roller is hidden;

[0020] Figure 5 It is a main structural schematic diagram of the utility model;

[0021] Figure 6 It is a side structural schematic diagram of the utility model.

[0022] In the figure: 1. handle; 2. U-shaped bracket; 3. roller; 4. microneedle; 5. core shaft; 6. transverse limit elastic member; 7. contraction elastic member; 8. microneedle storage part; 9. transverse limit baffle; 10. roller limit baffle ring; 11. support member; 12. slide groove. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with specific embodiments.

[0024] The description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

[0025] like Figures 1 to 6 As shown, this embodiment is implemented through the following technical scheme: it includes a handle 1, a U-shaped bracket 2 and a roller 3 rotatably arranged on the U-shaped bracket 2 through a core shaft 5, the roller 3 is sleeved on the core shaft 5, and the roller 3 and the core shaft 5 can undergo axial relative movement.

[0026] The roller 3 is circumferentially provided with a plurality of microneedles 4 and radially penetrating mounting holes. The microneedles 4 are located in the stepped mounting holes. The mounting holes are provided with a contraction elastic member 7 that can retract the microneedles 4 into the roller 3. The tips of the microneedles 4 protrude from the circumferential surface of the roller 3. The microneedles 4 are provided with a support member 11 that serves as a fulcrum of the contraction elastic member 7. The roots of the microneedles 4 abut against the core shaft 5 under the action of the contraction elastic member 7.

[0027] The mandrel 5 is provided with a microneedle storage portion 8, and the microneedle storage portion 8 of the present embodiment is a needle-retracting hole. After the roller 3 and the mandrel 5 move relative to each other in the axial direction, and the needle-retracting hole moves to the position where the root of the microneedle 4 is located, under the action of the contraction elastic member 7, the root of the microneedle 4 will fall into the needle-retracting hole, and the tip of the microneedle 4 will retract into the roller 3. The surface of the mandrel 5 is provided with a plurality of slide grooves 12 arranged along its axial direction, and the root of the microneedle 4 abuts against the slide groove 12 on the surface of the mandrel 5, and the needle-retracting hole is also provided in the slide groove 12. The setting of the slide groove 12 can make the mandrel 5 rotate synchronously with the roller 3, and after the roller 3 and the mandrel 5 move relative to each other in the axial direction, it can ensure that the root of the microneedle 4 can fall into the needle-retracting hole.

[0028] One end of the mandrel 5 protrudes from the U-shaped bracket 2, and pressing the end of the mandrel 5 can cause the mandrel 5 to move axially. In addition, the mandrel 5 is provided with a transverse limit baffle 9 that can limit the movement of the mandrel 5 in the opposite direction of pressing. There are two transverse limit baffles 9, which are arranged at the left and right ends of the mandrel 5. The transverse limit baffle at the left end is located on the outside of the U-shaped bracket 2, and the transverse limit baffle at the right end is located on the inside of the U-shaped bracket 2.

[0029] In this embodiment, a transverse limit elastic member 6 is provided between the roller 3 and the core shaft 5 to prevent axial relative movement, which can prevent the microneedle retraction mechanism from being triggered by mistake before or during the use of the skin needle roller, thereby causing the skin needle roller to be unusable. Specifically, the transverse limit elastic member 6 is located between the right end face of the roller 3 and the left end face of the right transverse limit baffle 9. A roller limit ring 10 is provided between the left end face of the roller 3 and the inner side of the U-shaped bracket 2 to prevent the left end face of the roller 3 from directly contacting the inner side of the U-shaped bracket 2 and reduce the rotational friction. The roller limit ring 10 can be made of self-lubricating nylon.

[0030] In this embodiment, both the lateral displacement limiting elastic member 6 and the contraction elastic member 7 are compression springs.

[0031] When using the skin needle roller, the handle is held and the roller 3 is rolled. Since the roots of the microneedles 4 are supported by the mandrel 5, the contraction elastic member 7 is compressed, and the length of the microneedles 4 protruding from the surface of the roller 3 does not change, and the skin can be stimulated by the microneedles 4. After use, the right end of the mandrel 5 is pressed to move the mandrel 5 to the left. After the needle hole moves to the position where the roots of the microneedles 4 are located, the roots of the microneedles 4 will fall into the needle hole under the action of the contraction elastic member 7. The microneedles 4 lose the support of the mandrel 5 and will be completely retracted into the roller 3. The microneedles 4 will no longer protrude from the surface of the roller 3, which can effectively prevent the roller from causing harm to the treatment personnel after use.

[0032] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A retractable anti-needle puncture skin roller, comprising a U-shaped bracket (2) and a roller (3) rotatably arranged on the U-shaped bracket (2) via a core shaft (5), wherein a plurality of microneedles (4) are arranged around the roller (3), characterized in that: The roller (3) is sleeved on the core shaft (5), and the roller (3) and the core shaft (5) can move relative to each other in the axial direction; The roller (3) is provided with a plurality of radially penetrating mounting holes, the microneedles (4) are located in the mounting holes, and a contraction elastic member (7) is provided in the mounting holes for enabling the microneedles (4) to be retracted into the roller (3). The tips of the microneedles (4) protrude from the circumferential surface of the roller (3), and the roots of the microneedles (4) abut against the core shaft (5) under the action of the contraction elastic member (7); A microneedle receiving portion (8) is provided on the core shaft (5), and the roller (3) and the core shaft (5) move relative to each other in the axial direction. After the microneedle receiving portion (8) moves to the position where the root of the microneedle (4) is located, under the action of the contraction elastic member (7), the root of the microneedle (4) falls into the microneedle receiving portion (8), and the tip of the microneedle (4) retracts into the roller (3).

2. The retractable anti-needle puncture skin roller according to claim 1, characterized in that: A transverse displacement limiting elastic member (6) is provided between the roller (3) and the core shaft (5) to prevent axial relative movement.

3. The retractable anti-needle puncture skin roller according to claim 2, characterized in that: One end of the core shaft (5) protrudes from the U-shaped bracket (2), and pressing the end of the core shaft (5) can cause the core shaft (5) to move axially.

4. The retractable anti-needle puncture skin roller according to claim 3, characterized in that: The core shaft (5) is provided with a transverse limit baffle (9) capable of limiting the movement of the core shaft (5) in the opposite direction of pressing.

5. The retractable anti-needle puncture skin roller according to claim 2, characterized in that: The transverse displacement limiting elastic member (6) and the contraction elastic member (7) are both compression springs.

6. The retractable anti-needle puncture skin roller according to claim 1, characterized in that: The surface of the core shaft (5) is provided with a plurality of slide grooves (12) arranged along its axial direction, and the roots of the microneedles (4) abut against the slide grooves (12) on the surface of the core shaft (5); the microneedle receiving portion (8) is a needle receiving hole, and the needle receiving hole is arranged in the slide groove (12).

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