A multifunctional skin applicator stick with replaceable applicator head

Abstract

The utility model relates to a multifunctional skin medicine applying stick with replaceable applying head, the detachable applying head part can be designed into multiple types, the user can replace quickly according to the area of affected part, the form of medicament and use demand, the applying head part can be separately disassembled and cleaned or discarded, pollution caused by the mixed use of different medicaments is avoided, especially suitable for the scene that multiple members share in family or need strict disinfection in hospital, the elastic clamping design of connecting cylinder and handle rod ensures stable connection, ensures that the applying head does not fall off due to shaking or force in the use process, and the operation reliability is improved, the pushing rod in the handle rod pushes the connecting hole through axial movement, makes it separate from the elastic clamping part quickly, the user only needs to press the upper end of pushing rod with one hand to complete disassembly, does not need extra force or tool, also does not need to contact the applying head part, and pollution of fingers is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical supplies, and in particular to a multifunctional skin application stick with a replaceable application head. Background Technology

[0002] Currently, skin application tools are widely used in medical and daily care scenarios, but traditional application sticks generally have the following limitations: 1. Most application sticks use a fixed application head design, making it difficult to change the appropriate application head for different skin areas (such as large affected areas, joint folds, etc.) or different types of medications (such as ointments, liquids, powders), thus limiting the application scenarios; 2. Some detachable designs use threaded connections or simple plug-and-play, requiring manual force to pull out during disassembly. Since the application head is small, it may cause unstable grip or damage to the application head, which is not user-friendly, especially for the elderly or those with weak hand strength. Moreover, when pulling out the application head, the used application head may come into contact with the user's fingers, thus contaminating the fingers, making disassembly quite troublesome. Utility Model Content

[0003] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes a multifunctional skin application stick with a replaceable application head.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multifunctional skin application stick with a replaceable applicator head includes a detachably connected handle portion and an applicator head portion. The applicator head portion includes a connecting cylinder with an applicator at one end and a connecting hole at the other end. The handle portion includes a handle rod with an elastic locking part at one end that can be inserted into and locked in the connecting hole. The handle rod is hollow and has a pusher rod that moves axially within it. The lower end of the pusher rod can be inserted into and push the connecting hole, causing the connecting hole to disengage from the elastic locking part, and the upper end extends out of the handle rod.

[0006] In some embodiments, the elastic snap-fit ​​portion includes a plurality of elastic tabs evenly distributed along the circumference, and the plurality of elastic tabs are inserted into the connection hole.

[0007] In some embodiments, an annular flange is provided on the outer wall of the elastic sheet, and an annular groove that mates with the annular flange is provided on the inner wall of the connecting hole.

[0008] In some embodiments, when the elastic sheet is installed and inserted into the connecting hole, there is a distance H between the elastic sheet and the bottom wall of the connecting hole. A limiting push head is provided at the lower end of the push rod. The height of the limiting push head is less than the distance H, and the limiting push head can move with the push rod to the inner side of multiple elastic sheets to restrict the elastic sheets from moving inward.

[0009] In some embodiments, the limiting pusher and the push rod are connected by an oblique angle.

[0010] In some embodiments, the inner rounded corners of the connecting hole are chamfered.

[0011] In some embodiments, an L-shaped limiting groove is provided on the inner wall of the center hole of the handle rod, and a guide protrusion that slides in the L-shaped limiting groove is provided on the outer wall of the push rod. The L-shaped limiting groove includes a longitudinal limiting groove arranged along the axial direction of the handle rod. The lower end of the longitudinal limiting groove passes through the lower end of the handle rod, and the upper end of the longitudinal limiting groove is connected to a horizontally arranged horizontal limiting groove. When the guide protrusion is slidably placed in the horizontal limiting groove, the limiting push head is located inside the plurality of elastic plates.

[0012] In some embodiments, the applicator has a rounded head structure.

[0013] In some embodiments, the applicator has a flat-top structure.

[0014] In some embodiments, the applicator has a pointed structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The detachable applicator head can be designed in various types, allowing users to quickly change it according to the affected area, the form of the medication, and their usage needs;

[0017] 2. The applicator head can be disassembled for cleaning or disposal to avoid contamination caused by mixing different medications. It is especially suitable for use by multiple family members or in hospitals and other settings that require strict disinfection.

[0018] 3. The elastic snap-fit ​​design between the connecting cylinder and the handle bar ensures a stable connection and prevents the applicator head from falling off due to shaking or force during use, thus improving operational reliability.

[0019] 4. The push rod inside the handle pushes the connecting hole through axial movement, allowing it to quickly disengage from the elastic locking part. Users can complete the disassembly by simply pressing the upper end of the push rod with one hand, without the need for additional force or tools, and without touching the application head, thus avoiding contamination of the fingers. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of the coating part of this utility model when it has a round head structure;

[0021] Figure 2 This is a schematic diagram showing the disassembly of the applicator head and handle of this utility model;

[0022] Figure 3 This is one of the schematic diagrams showing the elastic snap-fit ​​part of this utility model inserted into the connecting hole;

[0023] Figure 4 This is the second schematic diagram showing the elastic snap-fit ​​part of this utility model inserted into the connecting hole;

[0024] Figure 5 This is a partial cross-sectional view of the handle rod and push rod of this utility model;

[0025] Figure 6 This is a cross-sectional schematic diagram of the applicator head of this utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the coating part of this utility model when it has a flat-head structure;

[0027] Figure 8 This is a three-dimensional structural diagram of the coating part of this utility model when it has a pointed structure. Detailed Implementation

[0028] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0029] like Figures 1-6 The multifunctional skin application stick with a replaceable applicator includes a detachable handle part 1 and an applicator part 2. The detachable applicator part 2 can be designed in various types, allowing users to quickly replace it according to the area of ​​the affected area, the form of the medicine, and usage needs. Moreover, the applicator part 2 can be disassembled and cleaned or discarded separately, avoiding contamination caused by mixing different medicines. It is especially suitable for use by multiple family members or in scenarios requiring strict disinfection, such as hospitals.

[0030] Furthermore, the applicator head portion 2 includes a connecting cylinder 5, one end of which is provided with an applicator 6, and the other end is provided with a connecting hole 7. The handle portion 1 includes a handle rod 3, one end of which is provided with an elastic locking part that can be inserted and locked into the connecting hole 7. The elastic locking design between the connecting cylinder 5 and the handle rod 3 ensures a stable connection and ensures that the applicator head will not fall off due to shaking or force during use, thereby improving operational reliability.

[0031] Furthermore, the handle rod 3 has a hollow structure, and a push rod 8 that moves axially is movably inserted inside the handle rod 3. The lower end of the push rod 8 can insert into and push the connecting hole 7, causing the connecting hole 7 to disengage from the elastic locking part, and the upper end extends out of the handle rod 3. When disassembling the applicator head part 2, the push rod 8 inside the handle rod 3 pushes the connecting hole 7 through axial movement, causing it to quickly disengage from the elastic locking part. The user only needs to press the upper end of the push rod with one hand to complete the disassembly, without the need for additional force or tools, and without touching the applicator head part 2, thus avoiding contamination of the fingers.

[0032] See Figures 2-4 As shown, the elastic locking part includes a plurality of elastic pieces 21 evenly distributed along the circumference, and the plurality of elastic pieces 21 are inserted into the connecting hole 7; by injection molding process, a plurality of elastic pieces 21 evenly distributed along the circumference are integrally formed at one end of the handle rod 3, and the elastic pieces 21 have a certain elasticity and toughness; during assembly, the elastic pieces 21 are aligned with the connecting hole 7 and inserted, and after being deformed by pressure, the elastic pieces 21 enter the connecting hole 7, and then recover their elasticity and tightly lock the inner wall of the connecting hole 7.

[0033] Thus, by using multiple elastic pieces 21 evenly distributed along the circumference as elastic locking parts, after insertion into the connecting hole 7, the elastic deformation can provide a uniform and stable locking force, ensuring that the application head is firmly connected to the handle rod 3 and preventing the application head from falling off during use; at the same time, the design of multiple elastic pieces 21 makes the force more even during disassembly, making it easier for the push rod 8 to push the connecting hole 7 away.

[0034] Furthermore, an annular flange 31 is provided on the outer wall of the elastic sheet 21, and an annular groove 32 that mates with the annular flange 31 is provided on the inner wall of the connecting hole 7. The annular flange 31 on the outer wall of the elastic sheet 21 and the annular groove 32 on the inner wall of the connecting hole 7 mate to form a positioning and anti-detachment structure, which further enhances the stability of the connection between the applicator head and the handle rod 3 and prevents relative rotation or axial loosening of the two during use. At the same time, this structure also makes it easy for users to intuitively judge whether the applicator head is installed in place.

[0035] See Figures 3-4 As shown, when the elastic sheet 21 is installed and inserted into the connecting hole 7, there is a distance H between the elastic sheet 21 and the bottom wall of the connecting hole 7. A limiting push head 41 is provided at the lower end of the push rod 8. The height of the limiting push head 41 is less than the distance H, and the limiting push head 41 can move with the push rod 8 to the inner side of multiple elastic sheets 21 to restrict the elastic sheet 21 from moving inward.

[0036] The distance H between the elastic plate 21 and the bottom wall of the connecting hole 7 provides room for the limiting push head 41 at the lower end of the push rod 8. In other words, when the elastic plate 21 is inserted into the connecting hole 7, the limiting push head 41 can be located within the range of distance H (e.g., ...). Figure 3 As shown), the elastic sheet 21 can deform and contract inward to achieve fixation. When the applicator head is connected and installed, the limiting push head 41 moves upward to the inner side of the elastic sheet 21 (as shown). Figure 4 As shown), at this time, the limiting push head 41 can restrict the elastic sheet 21 from moving inward, ensuring that the elastic sheet 21 will not accidentally shrink during the application process, causing the application head to fall off; at the same time, when disassembling the application head, the limiting push head 41 pushes the connecting hole 7, so that the elastic sheet 21 is smoothly separated from the connecting hole 7, ensuring the reliability of the disassembly operation.

[0037] Furthermore, the limiting push head 41 and the push rod 8 are connected by an angle 51, so that the limiting push head 41 can move smoothly to the inside of the elastic sheet 21.

[0038] The inner rounded corner of the connecting hole 7 is chamfered 61; this can guide the installation of the applicator head, making it easier for the elastic snap-fit ​​part to be inserted into the connecting hole 7 and reducing the installation difficulty; at the same time, the chamfer can reduce stress concentration at the corner of the connecting hole 7, improve the service life of the connecting hole 7, and prevent the corner from breaking due to frequent insertion and removal.

[0039] See Figures 3-5 As shown, an L-shaped limiting groove 71 is provided on the inner wall of the center hole of the handle rod 3, and a guide protrusion 72 that slides in the L-shaped limiting groove 71 is provided on the outer wall of the push rod 8. The L-shaped limiting groove 71 includes a longitudinal limiting groove 73 arranged along the axial direction of the handle rod 3. The lower end of the longitudinal limiting groove 73 passes through the lower end of the handle rod 3, and the upper end of the longitudinal limiting groove 73 is connected to a horizontally arranged horizontal limiting groove 74. When the guide protrusion 72 is slidably placed in the horizontal limiting groove 74, the limiting push head 41 is located inside the multiple elastic plates 21.

[0040] The L-shaped limiting groove 71 on the inner wall of the center hole of the handle rod 3 cooperates with the guide protrusion 82 on the outer wall of the push rod 8 to limit and guide the movement of the push rod 8, ensuring that the push rod 8 can only move along the specified path and preventing it from deviating or rotating within the handle rod 3. When the guide protrusion 8 slides to the uppermost end of the longitudinal limiting groove 73, the limiting push head 41 is located inside the elastic plate 21. Then, by rotating, the push rod 8 is inserted into the horizontal limiting groove 74, thereby limiting the axial movement of the push rod 8. At this time, the limiting push head 41 is accurately located inside the elastic plate 21, preventing the applicator from falling out and ensuring the reliability of the applicator during applicator operation.

[0041] See Figure 1 , Figure 7 , Figure 8As shown, the coating component 6 can be a round-headed structure, a flat-headed structure, or a pointed structure.

[0042] The applicator 6 is designed with three different structures: round, flat, and pointed, to meet diverse medication application needs. The round head is suitable for large-area, gentle application, reducing skin irritation; the flat head is suitable for even application of medication, and is suitable for smooth skin surfaces; the pointed head allows for precise application, and is suitable for small affected areas or crevices.

[0043] Of course, the coating part 6 is not limited to the above-mentioned structural shape.

[0044] Based on the accompanying drawings and the foregoing display and description of the basic principles, main features, and advantages of this utility model, those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multifunctional skin application stick with a replaceable applicator head, characterized in that: It includes a detachable handle part (1) and an applicator part (2). The applicator part (2) includes a connecting tube (5). One end of the connecting tube (5) is provided with an applicator (6), and the other end is provided with a connecting hole (7). The handle part (1) includes a handle rod (3). One end of the handle rod (3) is provided with an elastic locking part that can be inserted and locked in the connecting hole (7). The handle rod (3) has a hollow structure, and a push rod (8) that moves along its axial direction is movably inserted in the handle rod (3). The lower end of the push rod (8) can be inserted into and push the connecting hole (7) to disengage the connecting hole (7) from the elastic locking part, and the upper end extends out of the handle rod (3).

2. The multifunctional skin application stick with replaceable applicator head according to claim 1, characterized in that: The elastic snap-fit ​​part includes a plurality of elastic pieces (21) evenly distributed along the circumference, and the plurality of elastic pieces (21) are inserted into the connection hole (7).

3. A multifunctional skin application stick with a replaceable applicator head according to claim 2, characterized in that: An annular flange (31) is provided on the outer wall of the elastic sheet (21), and an annular groove (32) that mates with the annular flange (31) is provided on the inner wall of the connecting hole (7).

4. A multifunctional skin application stick with a replaceable applicator head according to claim 3, characterized in that: When the elastic sheet (21) is installed and inserted into the connecting hole (7), there is a distance H between the elastic sheet (21) and the bottom wall of the connecting hole (7). A limiting push head (41) is provided at the lower end of the push rod (8). The height of the limiting push head (41) is less than the distance H, and the limiting push head (41) can move with the push rod (8) to the inside of multiple elastic sheets (21) to restrict the elastic sheet (21) from moving inward.

5. A multifunctional skin application stick with a replaceable applicator head according to claim 4, characterized in that: The limiting pusher (41) and the push rod (8) are connected by an angle (51).

6. A multifunctional skin application stick with a replaceable applicator head according to claim 1, characterized in that: The inner rounded corner of the connecting hole (7) is chamfered (61).

7. A multifunctional skin application stick with a replaceable applicator head according to claim 4, characterized in that: An L-shaped limiting groove (71) is provided on the inner wall of the center hole of the handle rod (3), and a guide protrusion (72) that slides in the L-shaped limiting groove (71) is provided on the outer wall of the push rod (8). The L-shaped limiting groove (71) includes a longitudinal limiting groove (73) arranged along the axial direction of the handle rod (3). The lower end of the longitudinal limiting groove (73) passes through the lower end of the handle rod (3), and the upper end of the longitudinal limiting groove (73) is connected to a horizontally arranged horizontal limiting groove (74). When the guide protrusion (72) slides in the horizontal limiting groove (74), the limiting push head (41) is located inside the multiple elastic plates (21).

8. A multifunctional skin application stick with a replaceable applicator head according to any one of claims 1-7, characterized in that: The coating component (6) has a round head structure.

9. A multifunctional skin application stick with a replaceable applicator head according to any one of claims 1-7, characterized in that: The coating component (6) has a flat-top structure.

10. A multifunctional skin application stick with a replaceable applicator head according to any one of claims 1-7, characterized in that: The coating component (6) has a pointed structure.

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