Watch waterproof structure and watch
By incorporating raised structures such as oil reservoirs and waterproof rings on watch components, the oil film width and surface tension are increased, solving the problems of small contact area and difficult assembly of traditional watch waterproof rings, thus achieving better waterproof performance and easier assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-03-06
AI Technical Summary
In traditional watch waterproof structures, the elastic deformation contact area of the waterproof ring is small, the oil film is easily damaged, resulting in low waterproof capability, and the assembly pre-tightening force requirement is high, making it difficult to meet the waterproof needs of diverse usage scenarios.
A V-shaped or U-shaped oil reservoir is set on the sealing surface of the watch components, and a protrusion is formed on the surface of the waterproof ring to increase the width and surface tension of the oil film. The oil is squeezed into the oil reservoir through the deformation of the waterproof ring, thereby enhancing the waterproof performance.
It improves the watch's water resistance, reduces the assembly pre-tightening force requirement, expands the watch's usage scenarios, and ensures that it can still maintain good water resistance when in contact with oil solvents.
Smart Images
Figure CN223977506U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of watch technology, and in particular to a waterproof watch structure and a watch. Background Technology
[0002] As the usage scenarios for watches have diversified, their applications have expanded from daily commutes to outdoor sports, water sports, and even special environments with steam or contact with organic solvents. Therefore, the quality of a watch's water resistance directly determines its performance and lifespan in certain special scenarios. Traditional watch structures often use ordinary waterproof rings with a circular cross-section (such as O-rings made of nitrile rubber or fluororubber) for waterproof sealing. This is achieved by applying a waterproof oil film to the outside of the waterproof ring, and then using the compression deformation of the waterproof ring between the bezel and the case or the case back and the bezel to form a compression seal groove at the joint, thus achieving the purpose of sealing and waterproofing.
[0003] In the aforementioned waterproof structure, the circular cross-section waterproof component 1 undergoes elastic deformation under the pre-tightening force of the watch components (e.g., Figure 1 As shown, the surface of the waterproof component 1 is coated with waterproof oil. The internal static pressure maintained by the surface tension of the waterproof oil film 2 blocks the pressure difference between the inside and outside of the watch case 3. The waterproof component 1 relies on its own elastic deformation to provide a lasting and stable pressure on the oil film to maintain its existence and keep the oil film at a small thickness, thereby achieving a certain degree of waterproofing. The watch case 3 and the bezel 4 are usually connected by an interference fit or a threaded connection to form a mounting groove. The waterproof component 1 is installed in the mounting groove and undergoes elastic deformation when squeezed by the watch case 3 and the bezel 4, thus forming a sealed waterproof structure. The waterproof component 1 is an elastic component with a circular cross-section. After being squeezed, its contact area with the watch case 3 and the bezel 4 is small. The width of the waterproof oil film formed at the contact point between the waterproof component 1 and the watch components is narrow, and the oil film is easily damaged, causing the watch to fail in waterproofing and resulting in a low waterproofing capability. Furthermore, once this waterproof structure comes into contact with oil solvents, it will cause the waterproof oil to be lost or deteriorated, greatly reducing the watch's waterproofing capability. In addition, this structure requires a high pre-tightening force on the waterproof components, which also imposes certain constraints on the watch's structural design. Once the pre-tightening force is increased, assembly becomes more difficult. Utility Model Content
[0004] Therefore, it is necessary to address the above-mentioned shortcomings by providing a watch waterproof structure and watch that does not require high pre-tightening force for the watch waterproof components, is easy to assemble, and has good waterproof performance.
[0005] A waterproof structure for a watch includes a first component and a second component to be sealed together, and a waterproof ring disposed between the first component and the second component. The first component has a first sealing surface that fits into the waterproof ring, and the second component has a second sealing surface that fits into the waterproof ring. The first sealing surface has a first oil reservoir, and the second sealing surface has a second oil reservoir. The first oil reservoir and the second oil reservoir are filled with waterproof oil. When subjected to pressure, the waterproof ring deforms and is partially squeezed into the first oil reservoir and the second oil reservoir to make pressure contact with the waterproof oil. An oil film is provided on the first sealing surface at the edge of the first oil reservoir opening and on the second sealing surface at the edge of the second oil reservoir opening, both of which are attached to the surface of the waterproof ring.
[0006] In one embodiment, the first oil storage tank has a V-shaped, U-shaped, or W-shaped cross-section, and the second oil storage tank has a V-shaped, U-shaped, or W-shaped cross-section.
[0007] In one embodiment, the cross-section of the waterproof ring is circular, elliptical, or rectangular.
[0008] In one embodiment, the surface of the waterproof ring is raised to form a first protrusion that is embedded in a first oil reservoir, and / or a second protrusion that is embedded in a second oil reservoir, wherein the height of the first protrusion is less than the depth of the first oil reservoir, and the height of the second protrusion is less than the depth of the second oil reservoir.
[0009] In one embodiment, the oil film has a rectangular sheet-like structure or a wedge-shaped structure.
[0010] In one embodiment, the second oil storage tank has a U-shaped cross-section, the first oil storage tank has a V-shaped cross-section, the width of the opening of the second oil storage tank is greater than the width of the opening of the first oil storage tank, the depth of the second oil storage tank is greater than the depth of the first oil storage tank, and the waterproof ring is provided with a second protrusion for embedding into the second oil storage tank, the second protrusion and the second oil storage tank being in clearance fit.
[0011] In one embodiment, the first component is the watch case, and the second component is the front bezel or the back cover.
[0012] In one embodiment, the first component is provided with a step, and the second component is provided with an annular boss corresponding to the step. The end of the annular boss abuts against the step, and the outer side of the annular boss is threadedly connected to the side wall of the step. The first sealing surface and the second sealing surface are parallel to each other and together form an installation groove. The waterproof ring is inserted into the installation groove and squeezes into contact with the waterproof oil in the first oil storage tank and the second oil storage tank.
[0013] In one embodiment, the waterproof ring is made of nitrile rubber or fluororubber.
[0014] This utility model also discloses a watch that includes the aforementioned waterproof structure.
[0015] The watch waterproof structure and watch of this utility model have a first oil reservoir and a second oil reservoir on the first and second components to be sealed and joined. The waterproof ring undergoes elastic deformation under the assembly pre-tightening force of the first and second components, causing the deformed waterproof ring to be partially squeezed into the oil reservoir, further squeezing the waterproof oil in the reservoir. This increases the pressure and surface tension of the waterproof oil, thereby improving the watch's waterproof capability. The design does not require high assembly pre-tightening force on the watch components, is easy to assemble, and does not restrict the watch's structural design, thus expanding the diversity of watch structures and broadening the application scenarios. When the watch comes into contact with oil solvents, the design of the first and second oil reservoirs can still ensure sufficient waterproof oil, guaranteeing the watch's waterproof capability. Attached Figure Description
[0016] Figure 1 A diagram illustrating the waterproof principle of a traditional watch;
[0017] Figure 2 This is a schematic diagram illustrating the waterproof principle of the watch waterproof structure in one embodiment of the present invention.
[0018] Figure 3 This is a partial structural diagram of the waterproof structure of a watch in one embodiment of the present invention;
[0019] Figure 4 This is a cross-sectional structural diagram of the first component in one embodiment of the present invention;
[0020] Figure 5 This is a cross-sectional structural diagram of the second component in one embodiment of the present invention. Detailed Implementation
[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] To address the shortcomings of traditional watch waterproof structures, such as narrow oil film width, easy deterioration and wear of the waterproof oil, and high pre-tightening force on watch components, this solution first conducts a stress analysis of the waterproof oil film. The analysis reveals that a wider oil film results in stronger waterproofing. Specifically, under pressure differences, the oil film experiences shear force across its width; a wider film exhibits greater shear resistance. Conversely, a thinner oil film also enhances waterproofing. The closer the oil film is to the contact surface with watch components (such as the case, bezel, or case back) or the waterproof ring, the stronger its viscous effect and the better its shear resistance. Since the elastic deformation of the waterproof ring exerts limited pressure on the oil film, it is insufficient to penetrate the oil film in the thickness direction (for example, the rotor of a steam turbine, weighing tens of tons, is not supported by bearings but floats on a thin layer of oil film). Therefore, the oil film in a watch cannot be penetrated in the thickness direction, allowing for the reduction of the oil film thickness as much as possible to improve the watch's waterproofing performance. Furthermore, since the elastic deformation of the waterproof ring relies on the pre-tightening force of the watch components, but increasing the pre-tightening force is limited by the watch's structural design and assembly difficulty, the pressure the waterproof ring provides to the oil film is limited. Therefore, this solution optimizes the structure of the watch components and the waterproof ring, reducing the thickness of the waterproof oil film while increasing the width of the waterproof ink, thereby comprehensively improving the watch's waterproof performance.
[0023] For specific details, please refer to... Figure 2-5This utility model discloses a watch waterproof structure that requires low pre-tightening force for the watch waterproof components, is easy to assemble, and has good waterproof performance. The watch waterproof structure includes a first component 100 and a second component 200 to be sealed together, and a waterproof ring 300 disposed between the first component 100 and the second component 200. The first component 100 is the watch case, and the second component 200 is the front ring or back cover. The first component 100 has a first sealing surface 110 that fits against the waterproof ring 300, and the second component 200 has a second sealing surface 210 that fits against the waterproof ring 300. Preferably, in this embodiment, the first component 100 is the watch case, the second component 200 is the front ring, and the second sealing surface 210 is parallel to and opposite the first sealing surface 110, and the second sealing surface 210 is located above the first sealing surface 110. The waterproof ring 300 is made of nitrile rubber or fluororubber to ensure that the waterproof ring 300 has sufficient elasticity so that it can deform when subjected to the joint assembly pre-tightening pressure of the first component 100 and the second component 200, thereby sealing the area between the first sealing surface 110 and the second sealing surface 210, and achieving sealing isolation between the inside and outside of the area enclosed by the first component 100 and the second component 200. The first sealing surface 110 has a first oil reservoir 120, and the second sealing surface 210 has a second oil reservoir 220. The first oil reservoir 120 and the second oil reservoir 220 are filled with waterproof oil 400. When the waterproof ring 300 is under pressure, it deforms and is partially squeezed into the first oil reservoir 120 and the second oil reservoir 220 to make pressure contact with the waterproof oil 400. An oil film 500 is attached to the surface of the waterproof ring 300 at the edge of the opening of the first oil reservoir 120 on the first sealing surface 110 and at the edge of the opening of the second oil reservoir 220 on the second sealing surface 210.
[0024] In this embodiment, the first sealing surface 110 and the second sealing surface 210 are both annular planes. The waterproof ring 300 abuts between the first sealing surface 110 and the second sealing surface 210, ensuring that the parts of the first component 100 and the second component 200 that are opposite to each other and to be sealed are always sealed and waterproofed by the elastically deformed waterproof ring 300. The first oil reservoir 120 is an annular groove arranged on the first sealing surface 110 and extending along the circumference of the first sealing ring. The second oil reservoir 220 is an annular groove arranged on the second sealing surface 210 and extending along the circumference of the second sealing ring. Thus, when the waterproof ring 300 is deformed by the first component 100 and the second component 200, a portion of the waterproof ring 300 is embedded in the first oil reservoir 120 and the second oil reservoir 220. This increases the contact area between the waterproof ring 300 and the first component 100 and the second component 200. Furthermore, the waterproof ring 300 located on the first sealing surface 110 and the second sealing surface 210 provides waterproofing. The deformation of the waterproof oil 400 within the first and second oil reservoirs 120 and 220 increases the pressure on the waterproof oil 400 and the oil film 500, thereby improving the surface tension of the waterproof oil 400 and ensuring a tight seal between the two sides of the first and second oil reservoirs 120 and 220. Thus, even with a relatively small pre-tightening force between the first and second components 100 and 200 on the waterproof ring 300, as long as the deformed portion of the waterproof ring 300 is partially embedded within the first and second oil reservoirs 120 and compresses the waterproof oil 400, the waterproofing effect is guaranteed. Simultaneously, the deformation of the oil film 500 outside the first and second oil reservoirs 120 and 220 on the waterproof ring 300 causes the oil film 500 to become thinner and wider, further enhancing the shear resistance of the ink and thus improving the waterproofing effect at that location. Furthermore, in this solution, the waterproof oil 400 is sealed by the first oil reservoir 120 and the second oil reservoir 220. When the watch comes into contact with oil solvents, even if the oil film 500 on the outside of the first oil reservoir 120 and the second oil reservoir 220 is damaged or deteriorated, the waterproof oil 400 in the first oil reservoir 120 and the second oil reservoir 220 can still play a waterproof isolation and sealing role to ensure the waterproof performance of the watch.
[0025] In one embodiment, the first oil reservoir 120 has a V-shaped, U-shaped, or W-shaped cross-section, and the second oil reservoir 220 has a V-shaped, U-shaped, or W-shaped cross-section. The cross-sectional shape of the first oil reservoir 120 may be the same as or different from that of the second oil reservoir 220. The waterproof ring 300 has a circular, elliptical, or rectangular cross-section. In this embodiment, the waterproof ring 300 has a flat rectangular cross-section to increase the contact area between the waterproof ring 300 and the first sealing surface 110 and the second sealing surface 210, thereby further increasing the width of the oil film 500 and improving the watch's waterproof performance.
[0026] Furthermore, the surface of the waterproof ring 300 protrudes to form a first protrusion (not shown) that is embedded in the first oil reservoir 120, and / or a second protrusion 310 that is embedded in the second oil reservoir 220. The height of the first protrusion is less than the depth of the first oil reservoir 120, and the height of the second protrusion 310 is less than the depth of the second oil reservoir 220. Alternatively, the dimensions of the first protrusion must satisfy the requirement that it can be completely embedded in the first oil reservoir 120, so that the waterproof ring 300 abuts against the edge of the groove of the first oil reservoir 120 and fits against the first sealing surface 110. Furthermore, when the first protrusion is embedded in the first oil reservoir 120, the end of the first protrusion does not contact the bottom surface of the groove of the first oil reservoir 120, ensuring that the first protrusion compresses the waterproof oil 400 within the first oil reservoir 120. In this way, by sealing the edge of the opening of the first oil reservoir 120 with the waterproof ring 300, the waterproof oil 400 is confined within the first oil reservoir 120 and jointly defined by the first protrusion and the inner wall of the first oil reservoir 120. As the first protrusion deforms under compression, the compressive force on the waterproof oil 400 within the first oil reservoir 120 increases, thereby increasing the surface tension of the waterproof oil 400 within the first oil reservoir 120 and improving the waterproofing effect. Similarly, the dimensions of the second protrusion 310 need to meet the requirement that the second protrusion 310 can be completely embedded within the second oil reservoir 220 so that the waterproof ring 300 abuts against the edge of the opening of the second oil reservoir 220 and fits against the second sealing surface 210. When the second protrusion 310 is embedded within the second oil reservoir 220, the end of the second protrusion 310 does not contact the bottom surface of the second oil reservoir 220, ensuring the compression of the waterproof oil 400 within the second oil reservoir 220 by the second protrusion 310. In this way, by sealing the edge of the second oil reservoir 220 opening with the waterproof ring 300, the waterproof oil 400 is confined within the second oil reservoir 220 and jointly defined by the second protrusion 310 and the inner wall of the second oil reservoir 220. As the second protrusion 310 is compressed and deformed, the compressive force on the waterproof oil 400 within the second oil reservoir 220 increases, thereby increasing the surface tension of the waterproof oil 400 within the second oil reservoir 220 and improving the waterproof effect. In addition, in this embodiment, by providing the first protrusion and / or the second protrusion 310 on the surface of the waterproof ring 300, it is possible to prevent the waterproof ring 300 from being compressed and twisted during assembly, thus preventing it from detaching from the area between the first sealing surface 110 and the second sealing surface 210, avoiding displacement of the waterproof ring 300, reducing the installation difficulty of the waterproof ring 300, and ensuring the waterproof performance of the watch's waterproof structure.
[0027] In one embodiment, the oil film 500 has a rectangular sheet structure or a wedge-shaped structure. Specifically, when the cross-section of the waterproof ring 300 is circular or elliptical, the oil film 500 has a wedge-shaped structure and fills the gap between the waterproof ring 300 and the edge of the first oil storage tank 120, as well as the gap between the waterproof ring 300 and the edge of the second oil storage tank 220; when the cross-section of the waterproof ring 300 is rectangular, the oil film 500 has a rectangular sheet structure and fills the gap between the waterproof ring 300 and the edge of the first oil storage tank 120, as well as the gap between the waterproof ring 300 and the edge of the second oil storage tank 220.
[0028] In one embodiment, the first component 100 is provided with a step 130, and the second component 200 is provided with an annular boss 230 corresponding to the step 130. The end of the annular boss 230 abuts against the step 130, and the outer side of the annular boss 230 is threadedly connected to the side wall of the step 130. The first sealing surface 110 and the second sealing surface 210 are parallel to each other and together form an installation groove 600. The waterproof ring 300 is inserted into the installation groove 600 and presses against the waterproof oil 400 in the first oil storage tank 120 and the second oil storage tank 220. Specifically, in this embodiment, the first component 100 is the watch case, and the second component 200 is the front bezel. The upper surface of the watch case forms a first sealing surface 110, and a first oil reservoir 120 is provided on the first sealing surface 110. The inner side of the watch case is provided with a step 130 that penetrates the first sealing surface 110. The lower surface of the front bezel forms a second sealing surface 210. On the side of the second sealing surface 210 near the center of the front bezel, there is an annular boss 230 extending towards the watch case. The outer ring surface of the annular boss 230 is provided with an external thread, and the side of the step 130 is provided with an internal thread corresponding to the external thread. In this way, the front bezel and the watch case can be assembled by the threaded connection between the annular boss 230 and the side of the step 130. By limiting the height of the annular boss 230, the height of the mounting groove 600 is limited to accommodate the installation of the waterproof ring 300. When the outer surface of the waterproof ring 300 is coated with waterproof oil 400 and installed in the mounting groove 600, the upper surface of the waterproof ring 300 abuts against the second sealing surface 210 of the second component 200, and the lower surface of the waterproof ring 300 abuts against the first sealing surface 110 of the first component 100. The second component 200 and the first component 100 compress the waterproof ring 300 and produce elastic deformation to form a waterproof sealing structure.
[0029] In this embodiment, the cross-sectional shape of the second oil storage tank 220 is U-shaped, and the cross-sectional shape of the first oil storage tank 120 is V-shaped. The width of the opening of the second oil storage tank 220 is greater than that of the first oil storage tank 120, and the depth of the second oil storage tank 220 is greater than that of the first oil storage tank 120. The waterproof ring 300 is provided with a second protrusion 310 for embedding into the second oil storage tank 220. The second protrusion 310 is clearance-fitted with the second oil storage tank 220. This allows for quick positioning of the waterproof ring 300 and facilitates its installation, while also preventing the waterproof ring 300 from twisting and detaching from the mounting groove 600 due to compression.
[0030] This utility model also discloses a watch, which includes the aforementioned waterproof structure. The watch has multiple waterproof structures. Specifically, the lower part of the watch case and the back cover form a waterproof structure. In this structure, the lower part of the watch case serves as the first component, and the back cover as the second component. A waterproof ring is provided at the sealing joint between the two components. A first oil reservoir and a second oil reservoir are provided at corresponding positions on the lower part of the watch case and the upper part of the back cover to achieve a waterproof seal between the watch case and the back cover. Similarly, the upper part of the watch case and the bezel form another waterproof structure. In this structure, the upper part of the watch case serves as the first component, and the bezel as the second component. A waterproof ring is provided at the sealing joint between the two components. A first oil reservoir and a second oil reservoir are provided at corresponding positions on the upper part of the watch case and the lower part of the bezel to achieve a waterproof seal between the watch case and the bezel. The specific structure and working principle of these two waterproof structures can be found in the description of the aforementioned waterproof structure, and will not be repeated here.
[0031] The watch also includes a watch glass with a sealed cover on the front bezel, a movement housed in the watch case, a dial, a hand assembly, and a crown that penetrates the watch case and is inserted into the inner cavity of the watch case to connect with the movement. Of course, the movement can be an electronic movement or a mechanical movement. That is, the function of the watch in this embodiment can be the same as that of any electronic or mechanical watch on the market. Its main improvement lies in the improvement of the watch's waterproof structure. The working principle of the watch will not be described here.
[0032] In addition, this utility model also discloses a method for waterproofing a watch, which is implemented using the aforementioned watch waterproofing structure. Specifically, the watch waterproofing method of this embodiment includes the following steps:
[0033] S1. Oil reservoirs are opened on the sealing surfaces of the two watch components to be sealed and joined.
[0034] Specifically, the two watch components to be sealed and joined are a first component 100 and a second component 200. The sealing surface of the first component 100 is a first sealing surface 110, and the sealing surface of the second component 200 is a second sealing surface 210. A first oil reservoir 120 is formed on the first sealing surface 110, and a second oil reservoir 220 is formed on the second sealing surface 210. The cross-section of the oil reservoir is V-shaped, U-shaped, or W-shaped. That is, the cross-section of the first oil reservoir 120 is V-shaped, U-shaped, or W-shaped, and the cross-section of the second oil reservoir 220 is V-shaped, U-shaped, or W-shaped. The cross-sectional shape of the first oil reservoir 120 may be the same as or different from that of the second oil reservoir 220.
[0035] S2. Apply waterproof oil 400 to the surface of the waterproof ring 300.
[0036] In this embodiment, the waterproof ring 300 is made of nitrile rubber or fluororubber to ensure that it has sufficient elasticity. This allows the waterproof ring 300 to deform under the combined pre-tightening pressure of the first component 100 and the second component 200, thereby sealing the area between the first sealing surface 110 and the second sealing surface 210, achieving a seal between the inside and outside of the area enclosed by the first component 100 and the second component 200. The waterproof ring 300 has a circular, elliptical, or rectangular cross-section. Preferably, the waterproof ring 300 has a rectangular cross-section to increase the contact area between the waterproof ring 300 and the first sealing surface 110 and the second sealing surface 210. This allows the waterproof ring 300 to compress the waterproofing oil 400 after installation, increasing the width of the waterproofing oil 400 between the first sealing surface 110 and the second sealing surface 210, thus improving the waterproofing effect.
[0037] The surface of the waterproof ring 300 is raised to form a protrusion that is embedded in the oil reservoir. Specifically, the surface of the waterproof ring 300 is raised to form a first protrusion that is embedded in the first oil reservoir 120, and / or a second protrusion 310 that is embedded in the second oil reservoir 220. The height of the first protrusion is less than the depth of the first oil reservoir 120, and the height of the second protrusion 310 is less than the depth of the second oil reservoir 220. The dimensions of the first protrusion need to meet the requirement that the first protrusion can be completely embedded in the first oil reservoir 120 so that the waterproof ring 300 abuts against the edge of the groove of the first oil reservoir 120 and fits against the first sealing surface 110. When the first protrusion is embedded in the first oil reservoir 120, the end of the first protrusion does not contact the bottom surface of the groove of the first oil reservoir 120, ensuring that the first protrusion compresses the waterproof oil 400 in the first oil reservoir 120. The dimensions of the second protrusion 310 need to meet the requirement that the second protrusion 310 can be completely embedded in the second oil reservoir 220 so that the waterproof ring 300 abuts against the edge of the groove of the second oil reservoir 220 and fits against the second sealing surface 210. When the second protrusion 310 is embedded in the second oil reservoir 220, the end of the second protrusion 310 does not contact the bottom surface of the groove of the second oil reservoir 220, ensuring that the second protrusion 310 squeezes the waterproof oil 400 in the second oil reservoir 220. In this way, by sealing the edges of the openings of the first oil reservoir 120 and the second oil reservoir 220 with the waterproof ring 300, the waterproof oil 400 is confined within the first and second oil reservoirs 120 and 220, and is jointly defined by the first protrusion and the inner wall of the first oil reservoir 120, as well as by the second protrusion 310 and the inner wall of the second oil reservoir 220. Thus, as the first and second protrusions 310 are compressed and deformed, the compressive force on the waterproof oil 400 increases, thereby increasing the surface tension of the waterproof oil 400 and improving the waterproof effect. In addition, by providing the first protrusion and / or the second protrusion 310 on the surface of the waterproof ring 300, the waterproof ring 300 can be prevented from being squeezed and twisted during assembly and thus detached from the area between the first sealing surface 110 and the second sealing surface 210, avoiding displacement of the waterproof ring 300, reducing the installation difficulty of the waterproof ring 300, and ensuring the waterproof performance of the watch's waterproof structure.
[0038] S3. Place the waterproof ring 300 coated with waterproof oil 400 between the two watch components to be sealed and joined, and deform the waterproof ring 300 by the joint compression of the two watch components to partially compress it into the oil reservoir, thus forming a waterproof structure.
[0039] Specifically, when the waterproof ring 300 is pressed between the two watch components to be sealed, a portion of the waterproof oil 400 on the waterproof ring 300 enters the oil reservoir. This portion of waterproof oil 400 remains within the reservoir due to the pressure and sealing effect of the waterproof ring 300 and the edge of the reservoir opening. When the waterproof ring 300 deforms, the portion of the waterproof oil 400 that is squeezed into the reservoir is further compressed, increasing the pressure and surface tension of this portion, thus improving the watch's waterproof performance. The portion of waterproof oil 400 on the waterproof ring 300 that does not enter the reservoir is "thinned" under the combined pressure of the waterproof ring 300 and the outer part of the reservoir, forming a thin oil film 500. Due to the pressure from the waterproof ring 300, this oil film 500 is thinner and wider, further enhancing the sealing effect on both sides of the joined watch components and improving the watch's waterproof performance.
[0040] In this embodiment, in step S3, the waterproof ring 300 coated with waterproof oil 400 is embedded between the two assembled watch components; or the waterproof ring 300 coated with waterproof oil 400 is placed on the sealing surface of one watch component, and then the other watch component is pressed onto the waterproof ring 300 and the two watch components are fixed. That is to say, the two watch components can be assembled in advance and the mounting groove 600 can be reserved before embedding the waterproof ring 300 coated with waterproof oil 400 into the mounting groove 600. Alternatively, the waterproof ring 300 can be first attached to the sealing surface of one watch component, and then the other watch component can be fixed. By the two watch components pressing the waterproof ring 300 together, the assembly of the watch's waterproof structure and the watch's waterproof design are achieved.
[0041] The watch waterproof structure and watch of this utility model have a first oil reservoir 120 and a second oil reservoir 220 formed on the first component 100 and the second component 200 to be sealed and joined. The waterproof ring 300 undergoes elastic deformation under the assembly pre-tightening force of the first component 100 and the second component 200, so that the waterproof ring 300 is partially squeezed into the oil reservoir after deformation, so as to further squeeze the waterproof oil 400 in the oil reservoir, thereby increasing the pressure on the waterproof oil 400 and increasing the surface tension of the waterproof oil 400, thereby improving the waterproof ability of the watch. It does not require high assembly pre-tightening force for the watch components, is easy to assemble, has no restrictions on the watch structure design, expands the diversity of watch structure, and has a wider range of applications. When the watch comes into contact with oil solvents, the design of the first oil reservoir 120 and the second oil reservoir 220 can still ensure that the waterproof oil 400 is sufficient, thus ensuring the waterproof ability of the watch.
[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A waterproof structure for a wristwatch, characterized by comprising: The waterproof structure comprises a first member and a second member to be sealed, a waterproof ring arranged between the first member and the second member, the first member has a first sealing surface in contact with the waterproof ring, the second member has a second sealing surface in contact with the waterproof ring, the first sealing surface is provided with a first oil storage groove, the second sealing surface is provided with a second oil storage groove, and the first oil storage groove and the second oil storage groove are filled with waterproof oil; the waterproof ring is deformed and locally extruded into the first oil storage groove and the second oil storage groove under pressure to be in extrusion contact with the waterproof oil; the first sealing surface is provided with an oil film attached to the surface of the waterproof ring at the edge of the first oil storage groove, and the second sealing surface is provided with an oil film attached to the surface of the waterproof ring at the edge of the second oil storage groove.
2. The waterproof structure for a wristwatch according to claim 1, wherein The cross section of the first oil storage groove is in V-shaped structure or U-shaped structure or W-shaped structure, and the cross section of the second oil storage groove is in V-shaped structure or U-shaped structure or W-shaped structure.
3. The waterproof structure for a wristwatch according to claim 2, wherein The cross section of the waterproof ring is in circular structure or elliptical structure or rectangular structure.
4. The waterproof structure for a wristwatch according to claim 3, wherein The surface of the waterproof ring is protruded to form a first protruding part embedded in the first oil storage groove, or / and a second protruding part embedded in the second oil storage groove, the height of the first protruding part is less than the depth of the first oil storage groove, and the height of the second protruding part is less than the depth of the second oil storage groove.
5. The waterproof structure for a wristwatch according to claim 4, wherein The oil film is in rectangular sheet structure or wedge structure.
6. The waterproof structure for a wristwatch according to claim 4, wherein The cross section of the second oil storage groove is in U-shaped structure, the cross section of the first oil storage groove is in V-shaped structure, the width of the opening of the second oil storage groove is greater than the width of the opening of the first oil storage groove, the depth of the second oil storage groove is greater than the depth of the first oil storage groove, and the waterproof ring is provided with a second protruding part embedded in the second oil storage groove, and the second protruding part is in clearance fit with the second oil storage groove.
7. The waterproof structure for a wristwatch according to claim 1, wherein The first member is a watch case, and the second member is a bezel or a back cover.
8. The waterproof structure for a wristwatch according to claim 7, wherein The first member is provided with a step, the second member is provided with an annular boss corresponding to the step, the end of the annular boss abuts against the step, and the outer side surface of the annular boss is threadedly connected with the side wall of the step, the first sealing surface and the second sealing surface are parallel to each other and jointly form a mounting groove, the waterproof ring is inserted into the mounting groove and is in extrusion contact with the waterproof oil in the first oil storage groove and the second oil storage groove.
9. The waterproof structure for a wristwatch according to claim 1, wherein The waterproof ring is made of nitrile rubber or fluororubber.
10. A watch characterized by comprising: The waterproof structure comprises the waterproof structure of any one of claims 1-9. The waterproof structure comprises the waterproof structure of any one of claims 1-9.