A razor waterproof structure

Abstract

The application discloses a shaver waterproof structure, relates to the technical field of shaver sealing, and comprises a shaver body and a shell wrapped outside the shaver body, a key mounting hole is formed in the side wall of the shell, a switch button is adaptively mounted in the key mounting hole, a waterproof component is arranged between the side wall of the switch button and the key mounting hole, an annular anti-displacement boss is arranged on the waterproof component and extends towards the inside of the shell, the shaver body is provided with a supporting frame in contact with the side wall of the anti-displacement boss, the supporting frame, the inner side wall of the shell and the two sides of the anti-displacement boss are in abutment, the supporting frame is elastically connected with a connecting column corresponding to the switch button, and the connecting column is in contact with the keys on the circuit board of the side wall of the shaver body. The waterproof component directly blocks water from entering from the gap of the switch button, forming a first waterproof barrier, the anti-displacement boss is in abutment with the supporting frame and the inner side wall of the shell, preventing the waterproof component from being offset and the sealing surface from being separated due to long-term pressing of the switch button.

Description

Technical Field

[0001] This application relates to the field of razor sealing technology, and in particular to a waterproof structure for razors. Background Technology

[0002] Electric shavers are widely used in daily personal care settings due to their compact size and high shaving efficiency, and are especially suitable for use in humid environments such as bathrooms. To ensure the normal operation of the internal circuitry, motor, and other components of the shaver, the connection between the button and the shaver body must have reliable sealing performance to prevent moisture from seeping into the interior and causing malfunctions.

[0003] Currently, most shaver button sealing structures use simple annular sealing rings or single-structure sealing rubber. By placing the annular ring or sealing rubber around the button and then assembling the button into the button mounting hole of the shaver body, waterproofing is achieved by the adhesion between the rubber and the inner wall of the mounting hole.

[0004] Regarding the aforementioned technologies, the inventors believe that the sealing soft rubber with single radial adhesion is prone to axial displacement or aging deformation due to repeated pressing of the button, resulting in the sealing surface detaching. Utility Model Content

[0005] The purpose of this application is to provide a waterproof structure for shavers to improve the problem that the sealing rubber of a single radial fit is prone to axial displacement or aging deformation due to repeated pressing of the button, which can lead to the detachment of the sealing surface.

[0006] This application provides a waterproof structure for a razor, employing the following technical solution: A waterproof structure for an electric shaver includes a shaver body and a housing that surrounds the outer side of the shaver body. A button mounting hole is provided on the side wall of the housing, and a switch button is fitted into the button mounting hole. A waterproof component is provided between the side wall of the switch button and the button mounting hole. An annular anti-displacement protrusion extends from the waterproof component toward the interior of the housing. The shaver body has a support frame that contacts the side wall of the anti-displacement protrusion. The support frame, the inner side wall of the housing, and both sides of the anti-displacement protrusion abut against each other. A connecting post corresponding to the switch button is elastically connected to the support frame. The connecting post contacts a button on a circuit board on the side wall of the shaver body.

[0007] By adopting the above technical solution, the waterproof component between the button mounting hole and the switch button directly blocks moisture from seeping in through the button gap, forming the first waterproof barrier. The annular anti-displacement boss abuts against the support frame and the inner wall of the housing, limiting the axial and radial displacement of the waterproof component, preventing the waterproof component from shifting or the sealing surface from detaching due to long-term pressing of the switch button, and ensuring the long-term stability of the waterproof structure. The elastic connection post ensures that the switch button can accurately contact the circuit board button when pressed to achieve function triggering, and also reduces the hard impact on the circuit board when pressed through elastic buffering, reducing the risk of component damage, while accommodating the assembly error between the switch button and the circuit board.

[0008] Optionally, the waterproof component has a positioning hole adapted to the switch button, and the switch button extends to have a stop adapted to the positioning hole. The stop contacts the connecting post, and the waterproof component is made of silicone rubber.

[0009] By adopting the above technical solution, the positioning hole of the waterproof component is matched with the abutment of the switch button, providing precise radial positioning for the switch button and preventing it from shifting during pressing. This ensures that the abutment is always aligned with the connecting post, without affecting the function triggering, and also reduces the increase in sealing gap of the waterproof component caused by button shifting. The waterproof component made of silicone rubber has excellent water resistance, aging resistance and elasticity, and can adapt to humid environments for a long time. Its elasticity allows the waterproof component to fit tightly with the switch button and button mounting hole, without losing sealing performance due to material hardening. At the same time, the softness of silicone rubber does not affect the pressing feel of the switch button, balancing waterproofing and user experience.

[0010] Optionally, the waterproof component has a retaining groove corresponding to the circumferential sidewall of the switch button.

[0011] By adopting the above technical solution, the embedding groove of the waterproof component corresponds to the circumferential sidewall of the switch button, so that the waterproof component wraps around the switch button from the circumference, which greatly increases the contact area between the two, further reduces the sealing gap, reduces the path of water seeping into the switch button from the circumference, and improves the waterproof level; the embedding groove forms a circumferential limit on the switch button, preventing the switch button from rotating circumferentially during use, ensuring that the abutment is always aligned with the connecting post, preventing trigger failure due to button rotation, and preventing wear on the sealing surface between the waterproof component and the button caused by rotation.

[0012] Optionally, an annular insert is provided at the end of the abutment away from the switch button, and a limiting groove corresponding to the annular insert is provided at the end of the positioning hole of the waterproof component.

[0013] By adopting the above technical solution, the annular insert of the abutment cooperates with the limiting groove at the end of the positioning hole to limit the axial displacement of the switch button, preventing the switch button from falling out of the positioning hole of the waterproof component due to long-term pressing or accidental pulling, and ensuring the assembly stability of the switch button and the waterproof component; after the annular insert is embedded in the limiting groove, it forms a fitting and sealing structure at the end of the positioning hole, blocking water from seeping in from the gap between the inner wall of the positioning hole and the abutment, which is equivalent to adding an axial sealing barrier at the positioning hole of the waterproof component, further improving the reliability of waterproofing.

[0014] Optionally, the inner wall of the limiting groove is provided with a spacer block, and the annular insert has a slot corresponding to the spacer block.

[0015] By adopting the above technical solution, the spacer block of the limiting groove and the slot of the annular insert cooperate to form a circumferential anti-rotation structure, which completely restricts the relative circumferential rotation of the switch button and the waterproof component, prevents the sealing surface from being misaligned or worn due to rotation during long-term pressing, maintains the uniformity of the sealing gap, and does not lose the waterproof performance.

[0016] Optionally, the inner wall of the positioning hole facing the switch button has a chamfered end corresponding to the end of the abutment.

[0017] By adopting the above technical solution, the chamfer on the inner wall of the positioning hole facing the switch button plays a guiding role. When assembling the switch button, the abutment can be smoothly inserted into the positioning hole along the chamfer, and the assembly can be completed without precise alignment, reducing the assembly difficulty and improving production efficiency.

[0018] Optionally, the waterproof component has a resilient connecting section on the side of the switch button facing the shaver body.

[0019] By adopting the above technical solution, the elastic connection section of the waterproof component can deform with the pressing of the switch button, preventing the waterproof component from being pulled or stretched due to the movement of the switch button, preventing the sealing surface from detaching after the waterproof component is deformed, and maintaining the stability of the sealing performance.

[0020] Optionally, one side of the waterproof component is flush with the outer surface of the housing, and the waterproof component extends outward to provide an annular water-retaining edge corresponding to the switch button.

[0021] By adopting the above technical solution, one side of the waterproof component is flush with the outer surface of the shell, preventing the waterproof component from protruding or sinking into the shell surface, reducing the residual water at the connection between the waterproof component and the shell, and reducing the risk of water seeping into the interior due to long-term residue; the annular water-blocking edge forms a physical barrier on the outer surface of the shell, which can directly block the external water flow to the connection between the switch button and the button mounting hole, reducing the probability of water contacting the sealing surface of the waterproof component, reducing the risk of water seepage from the source, and helping to improve the overall waterproof effect.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The waterproof component between the button mounting hole and the switch button directly blocks water from seeping in through the button gap, forming the first waterproof barrier. The annular anti-displacement boss abuts against the support frame and the inner wall of the housing, restricting the axial and radial displacement of the waterproof component, preventing the waterproof component from shifting and the sealing surface from detaching due to long-term pressing of the switch button, and ensuring the long-term stability of the waterproof structure. 2. The positioning holes of the waterproof component are matched with the abutment of the switch button to provide precise radial positioning for the switch button, prevent the switch button from shifting during pressing, ensure that the abutment is always aligned with the connecting post, and not affect the function triggering. At the same time, it reduces the increase of the sealing gap of the waterproof component caused by button shifting. 3. The recessed groove of the waterproof component corresponds to the circumferential sidewall of the switch button, so that the waterproof component wraps around the switch button from the circumference, which greatly increases the contact area between the two, further reduces the sealing gap, reduces the path of water seeping into the switch button from the circumference, and improves the waterproof level; the recessed groove forms a circumferential limit on the switch button, preventing the switch button from rotating circumferentially during use, ensuring that the abutment is always aligned with the connecting post, and preventing trigger failure due to button rotation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall waterproof structure of a razor. Figure 2 This is a partial cross-sectional view of the waterproof structure of the razor; Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0024] In the diagram, 1. Shaver body; 11. Support frame; 12. Connecting post; 13. Circuit board; 2. Housing; 21. Button mounting hole; 3. Switch button; 31. Support post; 32. Annular insert; 321. Slot; 4. Waterproof component; 41. Anti-displacement boss; 42. Positioning hole; 421. Limiting groove; 422. Spacer block; 43. Retaining groove; 44. Elastic connecting section; 45. Annular water-blocking edge. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail below.

[0026] A waterproof structure for a razor, as shown in the reference Figure 1 , Figure 2 and Figure 3The device includes a shaver body 1 and a housing 2 that surrounds the outside of the shaver body 1. The housing 2 is cylindrical and fits the shaver body 1. A circular button mounting hole 21 is provided on the side wall of the housing 2 corresponding to the button position of the circuit board 13 of the shaver body 1. A switch button 3 is installed in the button mounting hole 21 and can be pressed along the axial direction of the button mounting hole 21. A waterproof component 4 is provided between the side wall of the switch button 3 and the button mounting hole 21. The waterproof component 4 is made of silicone rubber and has a positioning hole 42 in its center that matches the switch button 3. A cylindrical abutment 31 extends from the side of the switch button 3 facing the inside of the housing 2. The abutment 31 is fitted into the positioning hole 42 and the end of the abutment 31 away from the switch button 3 is in contact with the connecting post 12.

[0027] Reference Figure 2 and Figure 3 The waterproof component 4 has a retaining groove 43 on the circumferential side wall of the switch button 3. The retaining groove 43 fits and conforms to the circumferential side wall of the switch button 3 to achieve a tight circumferential fit between the two. The end of the abutment 31 away from the switch button 3 is integrally formed with an annular insert 32. The end of the waterproof component 4 located near the inside of the housing 2 has a limiting groove 421 that fits the annular insert 32. The annular insert 32 is embedded in the limiting groove 421. The inner side wall of the limiting groove 421 is integrally formed with spaced interval blocks 422. The outer circumferential surface of the annular insert 32 has a slot 321 that corresponds one-to-one with the spaced interval blocks 422. The spaced interval blocks 422 are inserted into the slots 321 to form a circumferential anti-rotation fit.

[0028] Reference Figure 2 and Figure 3 The inner wall of the positioning hole 42 is chamfered at the end facing the switch button 3. The chamfer gradually narrows from the opening end of the positioning hole 42 into the hole to facilitate the insertion of the abutment 31. The waterproof component 4 is integrally formed with an elastic connecting section 44 on the side of the switch button 3 facing the shaver body 1. The elastic connecting section 44 is in the shape of a thin sheet and extends along the axial direction of the waterproof component 4. It can deform when the switch button 3 is pressed. The side of the waterproof component 4 facing the outside of the housing 2 is flush with the outer surface of the housing 2, and an annular water-blocking edge 45 is integrally formed on this side around the switch button 3. The annular water-blocking edge 45 is tightly fitted to the outer surface of the housing 2.

[0029] Reference Figure 2 and Figure 3The side wall of the shaver body 1 is fixed with a support frame 11. The support frame 11 is located on the side of the waterproof component 4 facing the inside of the housing 2. The end face of the support frame 11 facing the waterproof component 4 is in contact with the side wall of the annular anti-displacement boss 41 of the waterproof component 4, and the inner side wall of the housing 2 abuts against the other side of the annular anti-displacement boss 41, realizing the bidirectional abutment and limiting of the annular anti-displacement boss 41. The connecting post 12 is elastically connected to the side of the support frame 11 facing the switch button 3 by a spring. The axis of the connecting post 12 is aligned with the axis of the abutment post 31 of the switch button 3, and the end of the connecting post 12 away from the support frame 11 is in contact with the button on the circuit board 13 on the side wall of the shaver body 1. When the switch button 3 is pressed, the abutment post 31 pushes the connecting post 12 to press the button on the circuit board 13, realizing the function trigger.

[0030] The implementation principle of this application embodiment is as follows: When in use, pressing the switch button 3 causes the abutment 31 to move axially along the positioning hole 42. The abutment 31 pushes the connecting post 12 to compress the spring and press the button on the circuit board 13, thus controlling the start and stop of the shaver. During the pressing process, the elastic connecting section 44 of the waterproof component 4 deforms with the movement of the switch button 3, preventing the waterproof component 4 from being stretched and deformed. At the same time, the annular water-blocking edge 45 blocks external water from flowing to the button mounting hole 21. The positioning hole 42, the embedding groove 43, and the annular insert 32 of the waterproof component 4 cooperate with the limiting groove 421 to form a multiple seal, preventing water from seeping in. After releasing the switch button 3, the elastic force of the elastic connecting section 44 assists the switch button 3 to reset, and the connecting post 12 resets under the action of the spring, waiting for the next press. Throughout the process, the waterproof component 4 directly blocks water from seeping in from the gap of the switch button 3, forming the first waterproof barrier. The anti-displacement boss 41 abuts against the support frame 11 and the inner wall of the housing 2, preventing the waterproof component 4 from shifting or the sealing surface from detaching due to long-term pressing of the switch button 3.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof structure for a razor, characterized in that: The device includes a shaver body (1) and a housing (2) that surrounds the outside of the shaver body (1). The housing (2) has a button mounting hole (21) on its side wall. A switch button (3) is fitted into the button mounting hole (21). A waterproof component (4) is provided between the side wall of the switch button (3) and the button mounting hole (21). The waterproof component (4) extends toward the inside of the housing (2) and has an annular anti-displacement boss (41). The shaver body (1) has a support frame (11) that contacts the side wall of the anti-displacement boss (41). The support frame (11), the inner side wall of the housing (2), and the two sides of the anti-displacement boss (41) abut against each other. The support frame (11) is elastically connected to a connecting post (12) corresponding to the switch button (3). The connecting post (12) contacts the button on the circuit board (13) on the side wall of the shaver body (1).

2. The waterproof structure for a razor according to claim 1, characterized in that: The waterproof component (4) has a positioning hole (42) adapted to the switch button (3), and the switch button (3) extends to have a stop (31) adapted to the positioning hole (42). The stop (31) is in contact with the connecting post (12). The waterproof component (4) is made of silicone rubber.

3. The waterproof structure for a razor according to claim 2, characterized in that: The waterproof component (4) has a recess (43) corresponding to the circumferential sidewall of the switch button (3).

4. The waterproof structure for a razor according to claim 3, characterized in that: The end of the abutment (31) away from the switch button (3) is provided with an annular insert (32), and the waterproof component (4) is provided with a limiting groove (421) corresponding to the annular insert (32) at the end of the positioning hole (42).

5. The waterproof structure for a razor according to claim 4, characterized in that: The inner wall of the limiting groove (421) is provided with a spacer block (422), and the annular insert (32) has a slot (321) corresponding to the spacer block (422).

6. The waterproof structure for a shaver according to claim 5, characterized in that: The inner wall of the positioning hole (42) facing the switch button (3) has a chamfered end corresponding to the end of the abutment (31).

7. The waterproof structure for a razor according to claim 6, characterized in that: The waterproof component (4) is provided with an elastic connecting section (44) on the side of the switch button (3) facing the shaver body (1).

8. The waterproof structure for a razor according to claim 7, characterized in that: One side of the waterproof component (4) is flush with the outer surface of the shell (2), and the waterproof component (4) extends outward to provide an annular water-blocking edge (45) corresponding to the switch button (3).

Images