Wearable device and waterproof sealing structure thereof

Abstract

The present invention discloses a wearable device and its waterproof blocking structure, wherein the waterproof blocking structure includes a fixed sleeve for being fixed to a shell, a blocking component slidably mounted in the fixed sleeve and coaxial with the air vent provided in the shell, and a locking component provided between the fixed sleeve and the blocking component. The pressing key of the blocking component is rotatably provided outside the fixed sleeve. When the water depth is deep, first press down the blocking component, and the blocking component moves downward relative to the fixed sleeve until the blocking component abuts against the air vent; then rotate the pressing key, and the blocking component rotates relative to the fixed sleeve, and the locking component works to lock the fixed sleeve and the blocking component, so that the blocking component keeps blocking the air vent. The waterproof blocking structure of the present invention is a mechanical structure, which can effectively separate the external high water pressure from the internal waterproof breathable membrane, so that the wearable device can adapt to water depths exceeding 100 meters underwater, and the waterproof performance is significantly improved.

Description

Technical Field

[0001] The present invention relates to the field of electronic equipment, and in particular to a wearable device and a waterproof sealing structure thereof. Background Art

[0002] Wearable devices like smartwatches, smart bracelets, and TWS earphones typically contain components like circuit boards and batteries. These electronic components are susceptible to short circuits and burnout due to water ingress in high-humidity environments, such as when washing hands, exercising, swimming, or in rainy or snowy weather. Therefore, a waterproof, breathable membrane is required to effectively prevent water molecules from entering the wearable device. This membrane generally allows air to pass freely, maintaining internal and external pressure balance, thus providing a degree of deep-water protection.

[0003] The waterproof performance of wearable devices is closely related to the water pressure resistance of the waterproof and breathable membrane. However, due to existing technological limitations, the water pressure resistance of existing waterproof and breathable membranes is relatively low. When the water depth exceeds 100 meters, the water pressure exceeds the water pressure resistance of the waterproof and breathable membrane. The existing waterproof and breathable membrane cannot withstand the high water pressure, resulting in waterproof failure and the waterproof performance of the wearable device being compromised. Therefore, how to improve the waterproof performance of wearable devices is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a wearable device and its waterproof sealing structure, which uses a mechanical structure to seal the air vents of the shell, separates the high water pressure from the waterproof breathable membrane, and the water pressure that can be tolerated is much greater than the water pressure resistance of the waterproof breathable membrane, thereby improving the waterproof performance.

[0005] The waterproof sealing structure of the wearable device provided by the present invention includes:

[0006] A fixing sleeve for fixing to the housing;

[0007] A blocking component slidably mounted in the fixing sleeve and coaxial with the vent hole provided in the housing;

[0008] A locking assembly provided between the fixing sleeve and the blocking assembly;

[0009] The pressing button of the blocking component is rotatably arranged outside the fixed sleeve;

[0010] When the blocking component moves down and presses against the vent hole, the button is pressed, and the blocking component rotates synchronously with the pressing button until the locking component locks the fixing sleeve and the blocking component, and the blocking component keeps blocking the vent hole.

[0011] Preferably, it also includes a reset elastic member elastically abutting between the blocking component and the shell or between the blocking component and the fixing sleeve; when the locking component is unlocked, the blocking component relies on the elastic force of the reset elastic member to return to the initial position.

[0012] Preferably, an annular groove is provided at one end of the blocking component close to the air vent, a limiting column is integrally provided along the hole edge of the air vent, one end of the reset elastic member is embedded in the annular groove and the other end is sleeved on the limiting column.

[0013] Preferably, the blocking assembly includes a limiting seat, and the locking assembly includes two limiting ridges respectively fixed on two opposite sides of the step surface of the fixing sleeve, a locking block provided on each limiting ridge, and a locking groove provided on the limiting seat;

[0014] When the blocking assembly is in the initial position, the limit seat elastically abuts against the step surface under the support of the reset elastic member, the limit seat is stuck between the two limit ridges, the locking block and the locking groove are staggered, and the locking assembly is in the unlocked state;

[0015] When the blocking assembly is in the blocking position, the limiting seat moves downward and away from the step surface and rotates relative to the two limiting ridges until the locking groove engages with the locking block under the support of the reset elastic member, and the locking assembly is in a locked state.

[0016] Preferably, a sliding groove is provided at one end of the fixing sleeve away from the air vent, and the push button can be slidably mounted in the sliding groove. A stop protrusion and a stop groove are provided between the push button and the limit seat, which engage with each other and are used to limit the relative rotation of the two.

[0017] Preferably, a guide groove is provided at one end of the fixing sleeve close to the air vent, and the sealing assembly further comprises a guide seat which can be slidably mounted in the guide groove and maintained in abutment with the limit seat, and the guide seat is integrally provided with a flexible plug for abutting against the air vent.

[0018] Preferably, a trumpet-shaped groove is provided at one end of the air vent facing the blocking component.

[0019] Preferably, the locking assembly further comprises an L-shaped locking groove and a locking column sliding along the L-shaped locking groove, and one of the blocking assembly and the fixing sleeve is provided with the L-shaped locking groove, and the other is provided with the locking column;

[0020] When the blocking assembly is in the initial position, the locking column is located in the axial sliding groove of the L-shaped locking groove;

[0021] When the locking assembly is locked, the locking column slides into the circumferential locking groove of the L-shaped locking groove under the guidance of the axial sliding groove, and the locking column abuts against the circumferential locking groove.

[0022] Preferably, it also includes a flexible anti-slip ring provided between the blocking component and the fixing sleeve.

[0023] The wearable device provided by the present invention comprises a housing and any one of the waterproof sealing structures described above, wherein the waterproof sealing structure is fixedly arranged at the air vent of the housing.

[0024] Compared to the background art, the waterproof sealing structure for a wearable device provided by the present invention includes a fixing sleeve, a sealing assembly, and a locking assembly. The fixing sleeve is fixed to the housing, and the sealing assembly is slidably mounted within the fixing sleeve. The housing is provided with a vent hole, and the sealing assembly is coaxial with the vent hole. The locking assembly is located between the fixing sleeve and the sealing assembly. The pressing button of the sealing assembly is rotatably mounted outside the fixing sleeve.

[0025] When the water depth is deep, first press down the blocking assembly, and the blocking assembly moves downward relative to the fixed sleeve until the blocking assembly presses against the air vent; then manually rotate the pressing key, and the blocking assembly rotates synchronously with the pressing key relative to the fixed sleeve, and the locking assembly works to lock the fixed sleeve and the blocking assembly, and the blocking assembly keeps blocking the air vent.

[0026] The waterproof sealing structure of the present invention is a mechanical structure that can effectively separate the external high water pressure from the internal waterproof and breathable membrane. Compared with the waterproof and breathable membrane, this mechanical structure can withstand greater water pressure, which is far greater than the water pressure resistance of the waterproof and breathable membrane. This allows wearable devices to adapt to underwater water depths exceeding 100 meters, and the waterproof performance is significantly improved.

[0027] The wearable device provided by the present invention includes the above-mentioned waterproof sealing structure and has the same beneficial effects due to the same technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0029] Figure 1 A cross-sectional view of a waterproof sealing structure of a wearable device provided by a specific embodiment of the present invention when in an initial position;

[0030] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0031] Figure 3 for Figure 2 Exploded diagram;

[0032] Figure 4 A cross-sectional view of a wearable device provided by a specific embodiment of the present invention, wherein the waterproof sealing structure seals the vent hole of the housing;

[0033] Figure 5 for Figure 4 A partial enlarged view of middle B;

[0034] Figure 6 for Figure 4 Structural diagram of the middle fixed sleeve;

[0035] Figure 7 for Figure 6 Another view of;

[0036] Figure 8 for Figure 4 Structural diagram of the middle limit seat;

[0037] Figure 9 for Figure 8 Another view of;

[0038] Figure 10 for Figure 4 The structural diagram of the middle press key;

[0039] Figure 11 for Figure 10 Another view of .

[0040] The reference numerals are as follows:

[0041] 1-shell, 2-fixing sleeve, 3-blocking assembly, 4-resetting elastic member and 5-flexible anti-slip ring;

[0042] 11-ventilation hole, 12-limiting column, 13-support column and 14-installation slot;

[0043] 111- trumpet-shaped groove;

[0044] 21-connecting ear, 22-limiting ridge, 23-locking block, 24-sliding groove, 25-guide groove and 26-step surface;

[0045] 31-limiting seat, 32-press key, 33-guide seat, 34-flexible plug and 35-annular groove;

[0046] 311-connecting portion, 312-limiting portion, 313-locking groove and 314-anti-rotation protrusion;

[0047] 321- anti-rotation groove and 322-stop cap. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0049] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] Please refer to Figures 1 to 11 , Figure 1 A cross-sectional view of a waterproof sealing structure of a wearable device provided by a specific embodiment of the present invention when in an initial position; Figure 2 for Figure 1 A partial enlarged view of middle A; Figure 3 for Figure 2 Exploded diagram; Figure 4 A cross-sectional view of a wearable device provided by a specific embodiment of the present invention, wherein the waterproof sealing structure seals the vent hole of the housing; Figure 5 for Figure 4 A partial enlarged view of middle B; Figure 6 for Figure 4 Structural diagram of the middle fixed sleeve; Figure 7 for Figure 6 Another view of; Figure 8 for Figure 4 Structural diagram of the middle limit seat; Figure 9 for Figure 8 Another view of; Figure 10 for Figure 4 The structural diagram of the middle press key; Figure 11 for Figure 10 Another view of .

[0051] The present invention discloses a waterproof sealing structure for a wearable device. This structure, which prevents clogging by adding a mechanical structure to the vent hole 11 of the housing 1, effectively separates the external high water pressure from the internal waterproof and breathable membrane. This allows the wearable device to withstand higher water pressure and improves its waterproof performance. Specifically, the wearable device can be a smartwatch, smart bracelet, or TWS earphones.

[0052] The waterproof sealing structure comprises a fixing sleeve 2, a sealing assembly 3, and a locking assembly. The fixing sleeve 2 is fixed to the vent 11 of the housing 1 and primarily provides support. Connecting ears 21 are symmetrically integrated on the outer side of the fixing sleeve 2. Correspondingly, support posts 13 are symmetrically positioned on either side of the vent 11 of the housing 1. Each connecting ear 21 makes surface-to-surface contact with a support post 13 and is removably secured to the support post 13 via a set screw.

[0053] The sealing assembly 3 is slidably mounted on the end of the fixed sleeve 2 away from the vent 11. It is coaxial with the vent 11 and can be moved closer to or further away from the vent 11, thereby opening or blocking the vent 11 accordingly. The detailed structure of the sealing assembly 3 is described below. The sealing assembly 3 also includes a push button 32, which is rotatably mounted on the exterior of the fixed sleeve 2. The installation of the push button 32 is described below.

[0054] The locking assembly is arranged between the fixing sleeve 2 and the blocking assembly 3. When the blocking assembly 3 is in the initial position, the locking assembly is in an unlocked state, and the blocking assembly 3 can rotate relative to the fixing sleeve 2. When the water depth is deep, the blocking assembly 3 is manually pressed down, and the blocking assembly 3 moves down from the initial position to the blocking position relative to the fixing sleeve 2. When the blocking assembly 3 is in the blocking position, the blocking assembly 3 blocks the air vent 11. The pressing key 32 is manually rotated, and the blocking assembly 3 rotates synchronously with the pressing key 32 relative to the fixing sleeve 2, and the locking assembly changes to a locked state. The locking assembly locks the fixing sleeve 2 and the blocking assembly 3, and the blocking assembly 3 cannot move relative to the fixing sleeve 2. The blocking assembly 3 keeps blocking the air vent 11.

[0055] In summary, the waterproof sealing structure of the present invention is a mechanical structure that can effectively separate the external high water pressure from the internal waterproof breathable membrane. Compared with the waterproof breathable membrane, this mechanical structure can withstand greater water pressure, which is far greater than the water pressure resistance of the waterproof breathable membrane, allowing wearable devices to adapt to underwater water depths exceeding 100 meters, and the waterproof performance is significantly improved.

[0056] It should be noted that a mounting groove 14 is formed between the two support columns 13 , and the height of the fixing sleeve 2 below the connecting ear 21 is equal to the depth of the mounting groove 14 , ensuring that the end face of the fixing sleeve 2 is in close contact with the bottom of the mounting groove 14 .

[0057] To prevent water from seeping into the vent 11 through the gap between the mounting groove 14 and the fixing sleeve 2, a rubber sealing ring can be installed between the fixing sleeve 2 and the mounting groove 14. The rubber sealing ring can be installed on the outer side of the fixing sleeve 2 near the vent 11 end, or on the end surface of the fixing sleeve 2 near the vent 11 end. The fixing sleeve 2 can be made of stainless steel using the MIM (Metal Injection Molding) process, and its internal stepped hole is polished. However, the material and processing technology of the fixing sleeve 2 are not limited to this.

[0058] The above-mentioned waterproof sealing structure also includes a reset elastic member 4, which elastically abuts between the sealing component 3 and the shell 1, or elastically abuts between the sealing component 3 and the fixed sleeve 2, and is used to assist the sealing component 3 in automatically resetting after it is separated from the air vent 11. When the sealing component 3 moves downward, the sealing component 3 squeezes the reset elastic member 4, and the reset elastic member 4 stores energy. After the sealing component 3 blocks the air vent 11, continue to press down the sealing component 3, and then rotate the sealing component 3 in the opposite direction relative to the fixed sleeve 2. The locking component is unlocked, and the sealing component 3 is released at this time. The reset elastic member 4 restores its elastic deformation, and the sealing component 3 relies on the elastic force of the reset elastic member 4 to return to its initial position. In this way, the sealing component 3 can be automatically reset, which is more convenient to operate and provides a better user experience.

[0059] In the first embodiment, the resilient reset member 4 preferably elastically abuts between the blocking assembly 3 and the fixing sleeve 2. The resilient reset member 4 can be a conventional cylindrical spring. An annular groove 35 is provided at one end of the blocking assembly 3 near the air vent 11. A retaining post 12 is integrally formed along the edge of the air vent 11. One end of the resilient reset member 4 is embedded in the annular groove 35, and the other end is sleeved on the retaining post 12. This effectively restrains the resilient reset member 4, preventing it from dislodging and causing the blocking assembly 3 to become stuck. This ensures that the blocking assembly 3 slides smoothly within the fixing sleeve 2, thereby reducing the risk of failure.

[0060] The center of the fixing sleeve 2 is provided with a stepped hole, within which a stepped surface 26 is formed. The blocking assembly 3 includes a stopper 31, and the locking assembly includes two stopper ribs 22, a locking block 23 provided on each stopper rib 22, and a locking groove 313 provided on the stopper 31. The two stopper ribs 22 are integrally and symmetrically provided on opposite sides of the stepped surface 26. A rectangular protrusion is integrally and perpendicularly provided at the center of each extended rib 22, which serves as the locking block 23. A rectangular groove is symmetrically provided at one end of the stopper 31, adjacent to the stepped surface 26, which serves as the locking groove 313. It should be noted that the opposing side surfaces of the stopper 31 are flat. When the blocking assembly 3 is in its initial position, the stopper 31 is located between the two extended ribs 22, and the two flat surfaces of the stopper 31 are respectively opposite the two extended ribs 22, preventing collision and interference between the stopper 31 and the extended ribs 22.

[0061] When the blocking assembly 3 is in the initial position, the limit seat 31 elastically abuts against the step surface 26 under the support of the reset elastic member 4, and the limit seat 31 limits the blocking assembly 3 from separating from the fixing sleeve 2. The limit seat 31 is stuck between the two limit ridges 22, so that the locking block 23 and the locking groove 313 are staggered, and the locking assembly is in the unlocked state.

[0062] Manually press the blocking assembly 3 downward, and the blocking assembly 3 moves down from the initial position to the blocking position. When the blocking assembly 3 is in the blocking position, the blocking assembly 3 blocks the air vent 11, the limit seat 31 disengages from the step surface 26, and the limit seat 31 disengages from between the two limit ridges 22. The blocking assembly 3 is rotated, and the limit seat 31 rotates synchronously relative to the two limit ridges 22 until the locking groove 313 is opposite to the locking block 23. The blocking assembly 3 is released, and the locking groove 313 moves up under the support of the reset elastic member 4 and engages with the locking block 23, and the locking assembly is in a locked state.

[0063] The stopper 31 includes an integrally connected connection portion 311 and a stopper portion 312. The connection portion 311 is located at the center of the stopper 31. The outer surface of the connection portion 311 is cylindrical, and the end away from the stopper portion 312 is connected to the push button 32. The stopper portion 312 has a waist-shaped structure, and two locking grooves 313 are respectively provided on the two arc end surfaces of the stopper portion 312.

[0064] A sliding groove 24 is provided on the end of the fixing sleeve 2, distal from the vent 11. A push button 32 is slidably mounted within the sliding groove 24, allowing the push button 32 to slide synchronously with the stopper 31 under its guidance. The push button 32 and stopper 31 are connected by a set screw. The separate design of the push button 32 and stopper 31 facilitates installation of the sealing assembly 3 on the fixing sleeve 2. The sliding groove 24 is preferably a cylindrical groove, but is not limited thereto.

[0065] A locking protrusion 314 and a locking groove 321 engage with each other between the push button 32 and the stop seat 31 to limit relative rotation between the push button 32 and the stop seat 31. The locking groove 321 is a cross-shaped groove located at the end of the push button 32 near the stop seat 31, while the locking protrusion 314 is a cross-shaped protrusion located at the end of the stop seat 31 near the push button 32. Of course, the objectives of the present invention can be achieved by interchanging the positions of the locking protrusion 314 and the locking groove 321, or by changing their types, such as to a straight or triangular configuration.

[0066] A stop cap 322 is integrally fixed to one end of the push button 32 away from the sliding slot 24 . The stop cap 322 is disc-shaped, and its outer diameter is larger than the inner diameter of the sliding slot 24 , which can prevent the push button 32 from being completely pressed into the sliding slot 24 .

[0067] A guide groove 25 is provided at one end of the fixed sleeve 2 near the air vent 11. The guide groove 25 is connected to the sliding groove 24 to form a stepped hole, and a step surface 26 is formed at the connection between the two. The guide groove 25 can be specifically a rectangular groove. The blocking assembly 3 also includes a guide seat 33 that can be slidably mounted on the guide groove 25. Under the support of the reset elastic member 4, the guide seat 33 and the limit seat 31 always maintain contact, so that the guide seat 33 slides back and forth along the guide groove 25 with the limit seat 31. The guide seat 33 is specifically a rectangular block and can be directly fixed to the limit seat 31, or it can only maintain contact with the limit seat 31.

[0068] A flexible plug 34 is integrally provided at the center of one end of the guide seat 33 near the air vent 11. The flexible plug 34 is used to block the air vent 11, which helps to further improve the waterproof performance. A limiting groove is provided at the center of the guide seat 33, and the flexible plug 34 is coaxially fixed to the bottom of the limiting groove, so that an annular groove 35 is formed between the limiting groove and the flexible plug 34. The flexible plug 34 can be made of a soft rubber material, and the guide seat 33 can be made of a POM material. The flexible plug 34 and the guide seat 33 are combined together through a LIM (Liquid Injection Molding) injection molding process. The flexible plug 34 is hemispherical, which increases the contact area between the flexible plug 34 and the air vent 11 and ensures that the flexible plug 34 reliably blocks the air vent 11.

[0069] A trumpet-shaped groove 111 is provided at one end of the air vent 11 facing the sealing component 3. The inner surface of the trumpet-shaped groove 111 is a smooth arc surface, which can not only reduce the difficulty of the flexible plug 34 entering the air vent 11, but also increase the contact area between the flexible plug 34 and the air vent 11, and prevent the inner wall of the air vent 11 from scratching the flexible plug 34.

[0070] The waterproof sealing structure also includes a flexible anti-slip ring 5 disposed between the sealing component 3 and the fixed sleeve 2. This ring increases friction between the sealing component 3 and the stepped hole of the fixed sleeve 2, reducing the risk of accidental sliding of the sealing component 3 relative to the fixed sleeve 2 when not pressed. Furthermore, the ring 5 enhances the smooth feel of pressing the sealing component 3, improving the user experience. Specifically, the ring 5 is a silicone ring that fits over the outer surface of the push button 32 and abuts against the inner wall of the sliding groove 24 of the fixed sleeve 2.

[0071] Compared with the first specific embodiment, the key point of the second specific embodiment is to change the structure of the locking assembly, and the rest of the technical solutions are the same as the first specific embodiment.

[0072] In a second specific embodiment, the locking assembly further comprises an L-shaped locking groove and a locking column that slides along the L-shaped locking groove. One of the blocking assembly 3 and the fixed sleeve 2 is provided with an L-shaped locking groove, and the other is provided with a locking column. The L-shaped locking groove comprises an axial sliding groove and a circumferential locking groove that are vertically connected. The axial sliding groove is parallel to the central axis of the air vent 11, and the circumferential locking groove extends along the circumference of the air vent 11. When the blocking assembly 3 is in the initial position, the locking column is located in the axial sliding groove of the L-shaped locking groove, and the locking assembly is in an unlocked state. When the blocking assembly 3 is pressed down relative to the fixed sleeve 2, the locking column slides along the axial sliding groove; when the blocking assembly 3 blocks the air vent 11, the blocking assembly 3 is rotated relative to the fixed sleeve 2, and the locking column rotates relative to the L-shaped locking groove. The locking column slides circumferentially from the axial sliding groove into the circumferential locking groove. When the locking column abuts against the circumferential locking groove, the circumferential locking groove restricts the locking column from continuing to move, and the locking assembly is in a locked state.

[0073] Specifically, the locking columns can be cylindrical columns symmetrically arranged on two opposite sides of the pressing key 32, and the L-shaped locking grooves can be arranged on two opposite sides of the sliding groove 24 of the fixing sleeve 2. Of course, the L-shaped locking grooves can also be converted into Z-shaped locking grooves by simply adding the step of rotating the blocking assembly 3 before pressing down the blocking assembly 3.

[0074] Of course, the structures of the locking assembly are not limited to the above two types, and other similar structures are within the protection scope of the present invention.

[0075] Compared with the first specific embodiment, the key point of the third specific embodiment is to change the installation position of the reset elastic member 4, and the rest of the technical solutions are the same as those of the first specific embodiment.

[0076] In the third embodiment, the resilient member 4 elastically abuts between the blocking assembly 3 and the fixed sleeve 2. The guide seat 33 and the limiting seat 31 are fixedly connected. The resilient member 4 is sleeved on the outer wall of the sliding groove 24 of the fixed sleeve 2. One end of the resilient member 4 abuts against the end surface of the fixed sleeve 2, and the other end abuts against the stop cap 322 of the pressing button 32. In this way, when the blocking assembly 3 is removed from the vent 11, the resilient member 4 can still assist the blocking assembly 3 in automatically returning to its initial position.

[0077] An embodiment of the present invention further discloses a wearable device, comprising a housing 1 and the above-mentioned waterproof sealing structure, wherein the waterproof sealing structure is fixedly arranged at the air vent 11 of the housing 1 and has the same beneficial effects.

[0078] The wearable device and its waterproof sealing structure provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A waterproof sealing structure for a wearable device, characterized in that: include: A fixing sleeve (2) for being fixed to the housing (1); a blocking component (3) slidably mounted in the fixing sleeve (2) and coaxial with the air vent (11) provided in the housing (1); A locking component provided between the fixing sleeve (2) and the blocking component (3); The pressing key (32) of the blocking component (3) is rotatably arranged outside the fixing sleeve (2); The fixing sleeve (2) is fixedly mounted on the air vent (11) of the housing (1), and the blocking assembly (3) is slidably mounted on an end of the fixing sleeve (2) away from the air vent (11); When the blocking component (3) moves downward and abuts against the vent hole (11), the pressing key (32) is rotated, and the blocking component (3) rotates synchronously with the pressing key (32) until the locking component locks the fixing sleeve (2) and the blocking component (3), and the blocking component (3) keeps blocking the vent hole (11); The waterproof sealing structure further comprises a reset elastic member (4) elastically abutting between the sealing assembly (3) and the housing (1) or between the sealing assembly (3) and the fixing sleeve (2); when the locking assembly is unlocked, the sealing assembly (3) is restored to its initial position by the elastic force of the reset elastic member (4).

2. The waterproof sealing structure of the wearable device according to claim 1, characterized in that: An annular groove (35) is provided at one end of the blocking component (3) close to the air vent (11); a limiting column (12) is integrally provided along the hole edge of the air vent (11); one end of the reset elastic member (4) is embedded in the annular groove (35) and the other end is sleeved on the limiting column (12).

3. The waterproof sealing structure of the wearable device according to claim 1, characterized in that: The blocking assembly (3) includes a limiting seat (31), and the locking assembly includes two limiting ridges (22) respectively fixed on two opposite sides of the step surface (26) of the fixing sleeve (2), a locking block (23) provided on each limiting ridge (22), and a locking groove (313) provided on the limiting seat (31); When the blocking assembly (3) is in the initial position, the limiting seat (31) elastically abuts against the step surface (26) under the support of the resetting elastic member (4), the limiting seat (31) is stuck between the two limiting ridges (22), the locking block (23) and the locking groove (313) are staggered, and the locking assembly is in an unlocked state; When the blocking assembly (3) is in the blocking position, the limiting seat (31) moves downward and disengages from the step surface (26), and then rotates relative to the two limiting ridges (22) until the locking groove (313) engages with the locking block (23) under the support of the resetting elastic member (4), and the locking assembly is in a locked state.

4. The waterproof sealing structure for a wearable device according to claim 3, wherein: A sliding groove (24) is provided at one end of the fixing sleeve (2) away from the air vent (11), and the pressing key (32) can be slidably mounted in the sliding groove (24). A rotation-stopping protrusion (314) and a rotation-stopping groove (321) that engage with each other and are used to limit relative rotation between the pressing key (32) and the limiting seat (31) are provided.

5. The waterproof sealing structure for a wearable device according to claim 3, wherein: The fixing sleeve (2) is provided with a guide groove (25) at one end close to the air vent (11), and the blocking assembly (3) further comprises a guide seat (33) which can be slidably mounted on the guide groove (25) and is kept in contact with the limiting seat (31), and the guide seat (33) is integrally provided with a flexible plug (34) for contacting the air vent (11).

6. The waterproof sealing structure for a wearable device according to claim 5, characterized in that: A trumpet-shaped groove (111) is provided at one end of the air vent (11) facing the blocking component (3).

7. The waterproof sealing structure for a wearable device according to any one of claims 1 to 3, characterized in that: The locking assembly further comprises an L-shaped locking groove and a locking column sliding along the L-shaped locking groove, one of the blocking assembly (3) and the fixing sleeve (2) is provided with the L-shaped locking groove, and the other is provided with the locking column; When the blocking assembly (3) is in the initial position, the locking column is located in the axial sliding groove of the L-shaped locking groove; When the locking assembly is locked, the locking column slides into the circumferential locking groove of the L-shaped locking groove under the guidance of the axial sliding groove, and the locking column abuts against the circumferential locking groove.

8. The waterproof sealing structure for a wearable device according to any one of claims 1 to 3, characterized in that: It also includes a flexible anti-slip ring (5) provided between the blocking component (3) and the fixing sleeve (2).

9. A wearable device, characterized in that: It comprises a shell (1) and the waterproof sealing structure according to any one of claims 1 to 8, wherein the waterproof sealing structure is fixedly arranged at the air vent (11) of the shell (1).

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