Seal type roller pin with adjustable pin length

Abstract

The utility model provides a needle-length-adjustable seal type roller needle which comprises a seal shell, a handle is connected to the rear side of the seal shell, a connecting hole penetrating through the two ends of the handle in the length direction is formed in the center of the handle, a mounting base is connected into the seal shell in a matched mode, a skin roller needle is arranged on the mounting base, and a panel is arranged at an opening in the front side of the seal shell. An adjusting screw rod is arranged in the connecting hole, the front end of the adjusting screw rod is fixedly connected with the mounting base, the other end of the adjusting screw rod is in threaded connection with an adjusting head, the front end of the adjusting screw rod is sleeved with a spring, one end of the spring abuts against the mounting base, and the other end of the spring abuts against the bottom of the inner cavity of the seal shell. The mounting seat and the skin roller pin are pushed to extend out of the panel through elastic force of the spring, the extending length of the skin roller pin is limited through the adjusting head at the rear end of the adjusting screw rod, the adjusting head is in threaded connection with the adjusting screw rod, the adjusting screw rod can be pulled to move front and back by rotating the adjusting head, and therefore the extending length of the skin roller pin out of the panel is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical beauty instruments, and particularly relates to a stamp-type microneedle with adjustable needle length. Background Art

[0002] In the fields of beauty and medicine, microneedle treatment technology has been increasingly attracting attention and application. As a common microneedle tool, the stamp-type microneedle plays an important role in improving skin conditions, promoting drug absorption, etc.

[0003] However, traditional stamp-type microneedles often have some limitations in practical applications.

[0004] Firstly, most of the existing stamp-type microneedles have a fixed needle length and cannot be flexibly adjusted according to different treatment requirements and individual differences of patients. This may lead to poor treatment effects in some cases. For example, for patients with thinner or more sensitive skin, an overly long needle length may cause excessive irritation and damage; while for cases that require deeper treatment, a fixed short needle length may not be able to reach the expected treatment depth.

[0005] Secondly, due to the non-adjustable needle length, it is difficult for users to precisely control the depth at which the microneedles act on the skin during operation, thus affecting the accuracy and safety of the treatment.

[0006] In addition, different skin problems and treatment sites may require different needle lengths to achieve the best effects. For example, facial skin is usually more delicate and requires a shorter needle length; while the skin of other parts of the body may require a longer needle length to deal with more serious problems. However, the existing stamp-type microneedles cannot meet this diverse demand. Summary of the Utility Model

[0007] Aiming at the problems pointed out in the background art, the utility model proposes a stamp-type microneedle with adjustable needle length to solve the above technical problems.

[0008] The technical solution of the utility model is realized as follows:

[0009] A stamp-type microneedle with adjustable needle length, comprising a stamp shell with an opening at the front side. A handle is connected to the rear side of the stamp shell. A connection hole penetrating through both ends in the length direction is provided at the center of the handle, and the connection hole is communicated with the inner cavity of the stamp shell. An installation seat is adaptively connected in the stamp shell, and a skin microneedle is provided on the installation seat. A panel is provided at the front opening of the stamp shell, and a needle-passing hole corresponding to the skin microneedle is provided on the panel. An adjusting screw is provided in the connection hole. The front end of the adjusting screw is fixedly connected to the installation seat, and the other end of the adjusting screw extends out from the rear end of the handle. A regulating head is threadedly connected to the other end of the adjusting screw. A spring is sleeved on the front end of the adjusting screw, and the spring is located in the inner cavity of the stamp shell. One end of the spring abuts against the installation seat, and the other end of the spring abuts against the bottom of the inner cavity of the stamp shell.

[0010] The present utility model is further configured such that the regulating head is of a cylindrical structure, and a threaded hole is provided on the front end face of the regulating head, and the rear end of the adjusting screw is threadedly connected to the threaded hole.

[0011] The present utility model is further configured such that two springs are provided, and the diameters of the two springs are set to be one large and one small. The spring with a larger diameter abuts against the side wall of the inner cavity of the stamp shell, and the inner diameter of the spring with a smaller diameter is equal to the diameter of the adjusting screw.

[0012] The present utility model is further configured such that a limiting ring is provided on the side wall of the inner cavity of the stamp shell, and the limiting ring is located between the installation seat and the panel.

[0013] The present utility model is further configured such that the position of the limiting ring can be adjusted in the length direction of the adjusting screw.

[0014] The present utility model is further configured such that the installation seat is adaptively and slidably connected to the inner cavity of the stamp shell.

[0015] The present utility model is further configured such that the adjusting screw is adaptively connected to the connection hole.

[0016] Adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] For the stamp-type microneedle with adjustable needle length provided by the present utility model, the installation seat and the skin microneedle are pushed out of the panel by the elastic force of the spring, and the length of the skin microneedle extending out is limited by the regulating head at the rear end of the adjusting screw. The regulating head is threadedly connected to the adjusting screw, and by rotating the regulating head, the adjusting screw can be pulled to move forward and backward, thereby adjusting the length of the skin microneedle extending out of the panel. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 It is a cross-sectional view of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the rear end of the stamp-type rolling needle of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the front end of the stamp-type rolling needle of the present invention. Detailed implementation manners

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] As follows for reference Figures 1-4 The present invention will be described as follows:

[0025] Embodiment 1: A stamp-type microneedle with adjustable needle length, comprising a stamp shell 1 with an opening at the front side. The stamp shell 1 provides a space for accommodating and protecting internal components. A handle 2 is connected to the rear side of the stamp shell 1. A connecting hole 3 penetrating through both ends in the length direction is provided at the center of the handle 2. The connecting hole 3 is communicated with the inner cavity of the stamp shell 1. The handle 2 facilitates the user's gripping and operation, and the connecting hole 3 is used to accommodate and guide the adjusting screw 8. An installation seat 4 is adaptively connected in the stamp shell 1. The installation seat 4 is adaptively and slidably connected to the inner cavity of the stamp shell 1. A plurality of skin microneedles 5 are provided on the installation seat 4. The installation seat 4 provides a stable installation position for the skin microneedles 5 and can slide in the stamp shell 1 to achieve the adjustment of the needle length. A panel 6 is provided at the front opening of the stamp shell 1. Through holes 7 corresponding to the skin microneedles 5 are provided on the panel 6. The through holes 7 ensure that the skin microneedles 5 can accurately penetrate through. An adjusting screw 8 is provided in the connecting hole 3. The adjusting screw 8 is adaptively connected to the connecting hole 3. The front end of the adjusting screw 8 is fixedly connected to the installation seat 4. The other end of the adjusting screw 8 extends out from the rear end of the handle 2. A regulating head 9 is threadedly connected to the other end of the adjusting screw 8. The regulating head 9 has a cylindrical structure. A threaded hole 11 is provided on the front end face of the regulating head 9. The rear end of the adjusting screw 8 is threadedly connected to the threaded hole 11. By rotating the regulating head 9, due to its threaded connection with the adjusting screw 8, the adjusting screw 8 can move back and forth, thereby driving the installation seat 4 to move and realizing the adjustment of the protruding length of the skin microneedles 5. A spring 10 is sleeved on the front end of the adjusting screw 8. The spring 10 is located in the inner cavity of the stamp shell 1. One end of the spring 10 abuts against the installation seat 4, and the other end of the spring 10 abuts against the bottom of the inner cavity of the stamp shell 1. On the one hand, the spring 10 can provide a certain elastic force for the installation seat 4, and on the other hand, it helps to maintain the structural stability during the adjustment process.

[0026] This stamp-type microneedle with adjustable needle length has the following advantages:

[0027] Precise adjustment: It can accurately adjust the protruding length of the skin microneedles 5 according to different needs, improving the pertinence and effect of treatment.

[0028] Convenient operation: The adjustment can be achieved by rotating the regulating head 9, and the operation is simple and easy to understand.

[0029] Good stability: The cooperation of the spring 10 and various components ensures the structural stability during use and reduces errors.

[0030] Working principle:

[0031] When it is necessary to adjust the protruding length of the skin rolling needle 5, rotate the adjusting head 9. Since the threaded hole 11 on the front end face of the adjusting head 9 is threadedly connected to the rear end of the adjusting screw 8, the rotation of the adjusting head 9 will drive the adjusting screw 8 to move back and forth along the connecting hole 3. The front end of the adjusting screw 8 is fixedly connected to the mounting seat 4, so the forward and backward movement of the adjusting screw 8 will push the mounting seat 4 to slide in the inner cavity of the seal housing 1. When the mounting seat 4 slides forward, the skin rolling needle 5 will protrude more from the needle-passing hole 7 on the panel 6, thereby increasing the protruding length of the needle; when the mounting seat 4 slides backward, the part of the skin rolling needle 5 protruding from the needle-passing hole 7 decreases, and the protruding length of the needle becomes shorter. During the adjustment process, the spring 10 sleeved on the front end of the adjusting screw 8 plays a role in buffering and assisting stability. One end of the spring 10 abuts against the mounting seat 4, and the other end abuts against the bottom of the inner cavity of the seal housing 1. Its elastic force can make the adjustment process smoother and also help to keep the positions of the mounting seat 4 and the skin rolling needle 5 stable after the adjustment is completed. In actual use, if deeper skin stimulation is required, rotate the adjusting head 9 clockwise to make the skin rolling needle 5 protrude longer; if only superficial treatment is needed, rotate the adjusting head 9 counterclockwise to shorten the protruding length of the skin rolling needle 5.

[0032] There are two springs 10. The two springs work together to provide a more balanced and stable supporting force for the mounting seat 4, making the skin rolling needle 5 smoother during adjustment and use. The diameters of the two springs 10 are set to be one large and one small. The spring 10 with a larger diameter abuts against the side wall of the inner cavity of the seal housing 1, and the inner diameter of the spring 10 with a smaller diameter is equal to the diameter of the adjusting screw 8. When the different-diameter springs are compressed and stretched, they can provide different degrees of buffering to adapt to different pressure and displacement situations. When adjusting the protruding length of the skin rolling needle 5, the coordinated work of the two springs can make the movement of the mounting seat 4 smoother and ensure the accuracy and consistency of the needle length adjustment. At the same time, during use, in the face of different pressures and vibrations, the two springs can better absorb and disperse forces, protect the internal structure and increase the service life.

[0033] On the side wall of the inner cavity of the seal housing 1, a limiting ring 12 is provided. The limiting ring 12 is located between the mounting seat 4 and the panel 6, and the limiting ring 12 can be adjusted in position along the length direction of the adjusting screw rod 8. By adjusting the position of the limiting ring 12, the moving stroke of the mounting seat 4 can be restricted, thereby further precisely controlling the extending length range of the skin rolling needle 5 and avoiding excessive extension. This prevents the mounting seat 4 from moving excessively due to misoperation or other reasons during the adjustment process, causing damage to the skin rolling needle 5 or other components, and improving the safety of use. The position of the limiting ring 12 can be flexibly adjusted according to different treatment requirements or usage scenarios to meet specific needle length requirements. If a shallower layer of the skin needs to be treated, the limiting ring 12 can be adjusted towards the direction close to the panel 6, thereby restricting the maximum extending length of the skin rolling needle 5; conversely, if a deeper layer of treatment is required, the limiting ring 12 can be moved towards the mounting seat 4 to allow the skin rolling needle 5 to extend longer.

[0034] The outer side wall of the limiting ring 12 is threadedly connected to the inner cavity side wall of the seal housing 1. By rotating the limiting ring 12, it moves along the thread in the length direction, thereby achieving the purpose of adjusting the position.

[0035] The panel 6 is detachably arranged. A plurality of buckles are provided at the opening edge on the front side of the seal housing 1, and corresponding slots are provided at the edge of the panel 6. The detachable connection is achieved through the cooperation of the buckles and the slots.

[0036] The outer contour of the adjusting head 9 and the handle 2 is adaptively set, making the entire seal - type rolling needle more coordinated and unified in appearance, with an overall aesthetic feeling. The adapted outer contour can conform to the ergonomic principle. When operating the adjusting head 9, the contact between the hand and the handle 2 and the adjusting head 9 is more natural and comfortable, reducing operation fatigue.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stamp-type needle roller with adjustable needle length, characterized in that: The invention comprises a seal shell (1) with a front opening, a handle (2) connected to the rear side of the seal shell (1), a connecting hole (3) penetrating through both ends of the handle (2) in the center of the handle (2) in the length direction, the connecting hole (3) being connected to the inner cavity of the seal shell (1), a mounting seat (4) being adapted and connected inside the seal shell (1), a skin roller needle (5) being provided on the mounting seat (4), a panel (6) being provided at the front opening of the seal shell (1), a needle hole (7) corresponding to the skin roller needle (5) being provided on the panel (6), and the connecting hole (3) being connected to the inner cavity of the seal shell (1). An adjusting screw (8) is arranged in the connecting hole (3), the front end of the adjusting screw (8) is fixedly connected to the mounting seat (4), the other end of the adjusting screw (8) extends from the rear end of the handle (2), the other end of the adjusting screw (8) is threadedly connected to an adjusting head (9), the front end of the adjusting screw (8) is sleeved with a spring (10), the spring (10) is located in the inner cavity of the seal shell (1), one end of the spring (10) is against the mounting seat (4), and the other end of the spring (10) is against the bottom of the inner cavity of the seal shell (1).

2. The stamp-type needle roller with adjustable needle length according to claim 1, characterized in that: The adjusting head (9) is a columnar structure, a threaded hole (11) is provided on the front end surface of the adjusting head (9), and the rear end of the adjusting screw rod (8) is threadedly connected to the threaded hole (11).

3. The stamp-type needle roller with adjustable needle length according to claim 1, characterized in that: The springs (10) are provided with two springs (10), the diameters of which are one large and one small. The spring (10) with the larger diameter abuts against the side wall of the inner cavity of the seal shell (1), and the inner diameter of the spring (10) with the smaller diameter is equal to the diameter of the adjusting screw (8).

4. The stamp-type needle roller with adjustable needle length according to claim 1, characterized in that: A limiting ring (12) is provided on the side wall of the inner cavity of the seal shell (1), and the limiting ring (12) is located between the mounting seat (4) and the panel (6).

5. The stamp-type needle roller with adjustable needle length according to claim 4, characterized in that: The position of the limiting ring (12) can be adjusted in the length direction of the adjusting screw (8).

6. The stamp-type needle roller with adjustable needle length according to claim 1, characterized in that: The mounting seat (4) is adaptively and slidably connected to the inner cavity of the seal shell (1).

7. The stamp-type needle roller with adjustable needle length according to claim 1, characterized in that: The adjusting screw (8) is adaptably connected to the connecting hole (3).

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